[PATCH v5 1/7] media: v4l2: Extend pixel formats to unify single/multi-planar handling (and more)

[Helen Koike <helen.koike@collabora.com>]

This is part of the multiplanar and singleplanar unification process.
v4l2_ext_pix_format is supposed to work for both cases.

We also add the concept of modifiers already employed in DRM to expose
HW-specific formats (like tiled or compressed formats) and allow
exchanging this information with the DRM subsystem in a consistent way.

Note that only V4L2_BUF_TYPE_VIDEO_[OUTPUT,CAPTURE] are accepted in
v4l2_ext_format, other types will be rejected if you use the
{G,S,TRY}_EXT_PIX_FMT ioctls.

New hooks have been added to v4l2_ioctl_ops to support those new ioctls
in drivers, but, in the meantime, the core takes care of converting
{S,G,TRY}_EXT_PIX_FMT requests into {S,G,TRY}_FMT so that old drivers can
still work if the userspace app/lib uses the new ioctls.
The conversion is also done the other around to allow userspace
apps/libs using {S,G,TRY}_FMT to work with drivers implementing the
_ext_ hooks.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Helen Koike <helen.koike@collabora.com>
---
Changes in v5:
- change sizes and reorder fields to avoid holes in the struct and make
  it the same for 32 and 64 bits
- removed __attribute__ ((packed)) from uapi structs
- Fix doc warning from make htmldocs
- Updated commit message with EXT_PIX prefix for the ioctls.

Changes in v4:
- Use v4l2_ext_pix_format directly in the ioctl, drop v4l2_ext_format,
making V4L2_BUF_TYPE_VIDEO_[OUTPUT,CAPTURE] the only valid types.
- Add reserved fields
- Removed num_planes from struct v4l2_ext_pix_format
- Removed flag field from struct v4l2_ext_pix_format, since the only
  defined value is V4L2_PIX_FMT_FLAG_PREMUL_ALPHA only used by vsp1,
  where we can use modifiers, or add it back later through the reserved
  bits.
- In v4l2_ext_format_to_format(), check if modifier is != MOD_LINEAR &&
  != MOD_INVALID
- Fix type assignment in v4l_g_fmt_ext_pix()
- Rebased on top of media/master (post 5.8-rc1)

Changes in v3:
- Rebased on top of media/master (post 5.4-rc1)

Changes in v2:
- Move the modifier in v4l2_ext_format (was formerly placed in
  v4l2_ext_plane)
- Fix a few bugs in the converters and add a strict parameter to
  allow conversion of uninitialized/mis-initialized objects
---
 drivers/media/v4l2-core/v4l2-dev.c   |  21 +-
 drivers/media/v4l2-core/v4l2-ioctl.c | 585 +++++++++++++++++++++++----
 include/media/v4l2-ioctl.h           |  34 ++
 include/uapi/linux/videodev2.h       |  56 +++
 4 files changed, 615 insertions(+), 81 deletions(-)

diff --git a/drivers/media/v4l2-core/v4l2-dev.c b/drivers/media/v4l2-core/v4l2-dev.c
index a593ea0598b55..e1829906bc086 100644
--- a/drivers/media/v4l2-core/v4l2-dev.c
+++ b/drivers/media/v4l2-core/v4l2-dev.c
@@ -607,25 +607,37 @@ static void determine_valid_ioctls(struct video_device *vdev)
 			set_bit(_IOC_NR(VIDIOC_ENUM_FMT), valid_ioctls);
 		if ((is_rx && (ops->vidioc_g_fmt_vid_cap ||
 			       ops->vidioc_g_fmt_vid_cap_mplane ||
+			       ops->vidioc_g_ext_pix_fmt_vid_cap ||
 			       ops->vidioc_g_fmt_vid_overlay)) ||
 		    (is_tx && (ops->vidioc_g_fmt_vid_out ||
 			       ops->vidioc_g_fmt_vid_out_mplane ||
-			       ops->vidioc_g_fmt_vid_out_overlay)))
+			       ops->vidioc_g_ext_pix_fmt_vid_out ||
+			       ops->vidioc_g_fmt_vid_out_overlay))) {
 			 set_bit(_IOC_NR(VIDIOC_G_FMT), valid_ioctls);
+			 set_bit(_IOC_NR(VIDIOC_G_EXT_PIX_FMT), valid_ioctls);
+		}
 		if ((is_rx && (ops->vidioc_s_fmt_vid_cap ||
 			       ops->vidioc_s_fmt_vid_cap_mplane ||
+			       ops->vidioc_s_ext_pix_fmt_vid_cap ||
 			       ops->vidioc_s_fmt_vid_overlay)) ||
 		    (is_tx && (ops->vidioc_s_fmt_vid_out ||
 			       ops->vidioc_s_fmt_vid_out_mplane ||
-			       ops->vidioc_s_fmt_vid_out_overlay)))
+			       ops->vidioc_s_ext_pix_fmt_vid_out ||
+			       ops->vidioc_s_fmt_vid_out_overlay))) {
 			 set_bit(_IOC_NR(VIDIOC_S_FMT), valid_ioctls);
+			 set_bit(_IOC_NR(VIDIOC_S_EXT_PIX_FMT), valid_ioctls);
+		}
 		if ((is_rx && (ops->vidioc_try_fmt_vid_cap ||
 			       ops->vidioc_try_fmt_vid_cap_mplane ||
+			       ops->vidioc_try_ext_pix_fmt_vid_cap ||
 			       ops->vidioc_try_fmt_vid_overlay)) ||
 		    (is_tx && (ops->vidioc_try_fmt_vid_out ||
 			       ops->vidioc_try_fmt_vid_out_mplane ||
-			       ops->vidioc_try_fmt_vid_out_overlay)))
+			       ops->vidioc_try_ext_pix_fmt_vid_out ||
+			       ops->vidioc_try_fmt_vid_out_overlay))) {
 			 set_bit(_IOC_NR(VIDIOC_TRY_FMT), valid_ioctls);
+			 set_bit(_IOC_NR(VIDIOC_TRY_EXT_PIX_FMT), valid_ioctls);
+		}
 		SET_VALID_IOCTL(ops, VIDIOC_OVERLAY, vidioc_overlay);
 		SET_VALID_IOCTL(ops, VIDIOC_G_FBUF, vidioc_g_fbuf);
 		SET_VALID_IOCTL(ops, VIDIOC_S_FBUF, vidioc_s_fbuf);
@@ -682,8 +694,11 @@ static void determine_valid_ioctls(struct video_device *vdev)
 		/* touch specific ioctls */
 		SET_VALID_IOCTL(ops, VIDIOC_ENUM_FMT, vidioc_enum_fmt_vid_cap);
 		SET_VALID_IOCTL(ops, VIDIOC_G_FMT, vidioc_g_fmt_vid_cap);
+		SET_VALID_IOCTL(ops, VIDIOC_G_EXT_PIX_FMT, vidioc_g_fmt_vid_cap);
 		SET_VALID_IOCTL(ops, VIDIOC_S_FMT, vidioc_s_fmt_vid_cap);
+		SET_VALID_IOCTL(ops, VIDIOC_S_EXT_PIX_FMT, vidioc_s_fmt_vid_cap);
 		SET_VALID_IOCTL(ops, VIDIOC_TRY_FMT, vidioc_try_fmt_vid_cap);
+		SET_VALID_IOCTL(ops, VIDIOC_TRY_EXT_PIX_FMT, vidioc_try_fmt_vid_cap);
 		SET_VALID_IOCTL(ops, VIDIOC_ENUM_FRAMESIZES, vidioc_enum_framesizes);
 		SET_VALID_IOCTL(ops, VIDIOC_ENUM_FRAMEINTERVALS, vidioc_enum_frameintervals);
 		SET_VALID_IOCTL(ops, VIDIOC_ENUMINPUT, vidioc_enum_input);
diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
index a556880f225a5..14a0def50f8ea 100644
--- a/drivers/media/v4l2-core/v4l2-ioctl.c
+++ b/drivers/media/v4l2-core/v4l2-ioctl.c
@@ -17,6 +17,8 @@
 
 #include <linux/videodev2.h>
 
+#include <drm/drm_fourcc.h>
+
 #include <media/v4l2-common.h>
 #include <media/v4l2-ioctl.h>
 #include <media/v4l2-ctrls.h>
@@ -378,6 +380,27 @@ static void v4l_print_format(const void *arg, bool write_only)
 	}
 }
 
+static void v4l_print_ext_pix_format(const void *arg, bool write_only)
+{
+	const struct v4l2_ext_pix_format *pix = arg;
+	unsigned int i;
+
+	pr_cont("type=%s, width=%u, height=%u, format=%c%c%c%c, modifier %llx, field=%s, colorspace=%d, ycbcr_enc=%u, quantization=%u, xfer_func=%u\n",
+		prt_names(pix->type, v4l2_type_names),
+		pix->width, pix->height,
+		(pix->pixelformat & 0xff),
+		(pix->pixelformat >>  8) & 0xff,
+		(pix->pixelformat >> 16) & 0xff,
+		(pix->pixelformat >> 24) & 0xff,
+		pix->modifier, prt_names(pix->field, v4l2_field_names),
+		pix->colorspace, pix->ycbcr_enc,
+		pix->quantization, pix->xfer_func);
+	for (i = 0; i < VIDEO_MAX_PLANES && pix->plane_fmt[i].sizeimage; i++)
+		pr_debug("plane %u: bytesperline=%u sizeimage=%u\n",
+			 i, pix->plane_fmt[i].bytesperline,
+			 pix->plane_fmt[i].sizeimage);
+}
+
 static void v4l_print_framebuffer(const void *arg, bool write_only)
 {
 	const struct v4l2_framebuffer *p = arg;
@@ -964,11 +987,15 @@ static int check_fmt(struct file *file, enum v4l2_buf_type type)
 	switch (type) {
 	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 		if ((is_vid || is_tch) && is_rx &&
-		    (ops->vidioc_g_fmt_vid_cap || ops->vidioc_g_fmt_vid_cap_mplane))
+		    (ops->vidioc_g_fmt_vid_cap ||
+		     ops->vidioc_g_ext_pix_fmt_vid_cap ||
+		     ops->vidioc_g_fmt_vid_cap_mplane))
 			return 0;
 		break;
 	case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
-		if ((is_vid || is_tch) && is_rx && ops->vidioc_g_fmt_vid_cap_mplane)
+		if ((is_vid || is_tch) && is_rx &&
+		    (ops->vidioc_g_fmt_vid_cap_mplane ||
+		     ops->vidioc_g_ext_pix_fmt_vid_cap))
 			return 0;
 		break;
 	case V4L2_BUF_TYPE_VIDEO_OVERLAY:
@@ -977,11 +1004,15 @@ static int check_fmt(struct file *file, enum v4l2_buf_type type)
 		break;
 	case V4L2_BUF_TYPE_VIDEO_OUTPUT:
 		if (is_vid && is_tx &&
-		    (ops->vidioc_g_fmt_vid_out || ops->vidioc_g_fmt_vid_out_mplane))
+		    (ops->vidioc_g_fmt_vid_out ||
+		     ops->vidioc_g_ext_pix_fmt_vid_out ||
+		     ops->vidioc_g_fmt_vid_out_mplane))
 			return 0;
 		break;
 	case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
-		if (is_vid && is_tx && ops->vidioc_g_fmt_vid_out_mplane)
+		if (is_vid && is_tx &&
+		    (ops->vidioc_g_ext_pix_fmt_vid_out ||
+		     ops->vidioc_g_fmt_vid_out_mplane))
 			return 0;
 		break;
 	case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
@@ -1061,6 +1092,134 @@ static void v4l_sanitize_format(struct v4l2_format *fmt)
 	       sizeof(fmt->fmt.pix) - offset);
 }
 
+int v4l2_ext_pix_format_to_format(const struct v4l2_ext_pix_format *e,
+				  struct v4l2_format *f, bool mplane_cap,
+				  bool strict)
+{
+	const struct v4l2_plane_ext_pix_format *pe;
+	struct v4l2_plane_pix_format *p;
+	unsigned int i;
+
+	memset(f, 0, sizeof(*f));
+
+	/*
+	 * Make sure no modifier is required before doing the
+	 * conversion.
+	 */
+	if (e->modifier && strict &&
+	    e->modifier != DRM_FORMAT_MOD_LINEAR &&
+	    e->modifier != DRM_FORMAT_MOD_INVALID)
+		return -EINVAL;
+
+	if (!e->plane_fmt[0].sizeimage && strict)
+		return -EINVAL;
+
+	if (e->plane_fmt[1].sizeimage && !mplane_cap && strict)
+		return 0;
+
+	if (!mplane_cap) {
+		f->fmt.pix.width = e->width;
+		f->fmt.pix.height = e->height;
+		f->fmt.pix.pixelformat = e->pixelformat;
+		f->fmt.pix.field = e->field;
+		f->fmt.pix.colorspace = e->colorspace;
+		f->fmt.pix.ycbcr_enc = e->ycbcr_enc;
+		f->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
+		f->fmt.pix.quantization = e->quantization;
+		pe = &e->plane_fmt[0];
+		f->fmt.pix.bytesperline = pe->bytesperline;
+		f->fmt.pix.sizeimage = pe->sizeimage;
+		f->type = e->type;
+		return 0;
+	}
+
+	f->fmt.pix_mp.width = e->width;
+	f->fmt.pix_mp.height = e->height;
+	f->fmt.pix_mp.pixelformat = e->pixelformat;
+	f->fmt.pix_mp.field = e->field;
+	f->fmt.pix_mp.colorspace = e->colorspace;
+	f->fmt.pix_mp.ycbcr_enc = e->ycbcr_enc;
+	f->fmt.pix_mp.quantization = e->quantization;
+	if (e->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
+		f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
+	else
+		f->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
+
+	for (i = 0; i < VIDEO_MAX_PLANES; i++) {
+		pe = &e->plane_fmt[i];
+		p = &f->fmt.pix_mp.plane_fmt[i];
+		p->bytesperline = pe->bytesperline;
+		p->sizeimage = pe->sizeimage;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(v4l2_ext_pix_format_to_format);
+
+int v4l2_format_to_ext_pix_format(const struct v4l2_format *f,
+				  struct v4l2_ext_pix_format *e, bool strict)
+{
+	const struct v4l2_plane_pix_format *p;
+	struct v4l2_plane_ext_pix_format *pe;
+	unsigned int i;
+
+	memset(e, 0, sizeof(*e));
+
+	switch (f->type) {
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+	case V4L2_BUF_TYPE_VIDEO_OUTPUT:
+		e->width = f->fmt.pix.width;
+		e->height = f->fmt.pix.height;
+		e->pixelformat = f->fmt.pix.pixelformat;
+		e->field = f->fmt.pix.field;
+		e->colorspace = f->fmt.pix.colorspace;
+		if (f->fmt.pix.flags)
+			pr_warn("Ignoring pixelformat flags 0x%x\n",
+				f->fmt.pix.flags);
+		e->ycbcr_enc = f->fmt.pix.ycbcr_enc;
+		e->quantization = f->fmt.pix.quantization;
+		e->plane_fmt[0].bytesperline = f->fmt.pix.bytesperline;
+		e->plane_fmt[0].sizeimage = f->fmt.pix.sizeimage;
+		e->type = f->type;
+		break;
+
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
+	case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
+		if ((f->fmt.pix_mp.num_planes > VIDEO_MAX_PLANES ||
+		     !f->fmt.pix_mp.num_planes) && strict)
+			return -EINVAL;
+
+		e->width = f->fmt.pix_mp.width;
+		e->height = f->fmt.pix_mp.height;
+		e->pixelformat = f->fmt.pix_mp.pixelformat;
+		e->field = f->fmt.pix_mp.field;
+		e->colorspace = f->fmt.pix_mp.colorspace;
+		if (f->fmt.pix.flags)
+			pr_warn("Ignoring pixelformat flags 0x%x\n",
+				f->fmt.pix.flags);
+		e->ycbcr_enc = f->fmt.pix_mp.ycbcr_enc;
+		e->quantization = f->fmt.pix_mp.quantization;
+		if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
+			e->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+		else
+			e->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
+
+		for (i = 0; i < VIDEO_MAX_PLANES; i++) {
+			pe = &e->plane_fmt[i];
+			p = &f->fmt.pix_mp.plane_fmt[i];
+			pe->bytesperline = p->bytesperline;
+			pe->sizeimage = p->sizeimage;
+		}
+		break;
+
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(v4l2_format_to_ext_pix_format);
+
 static int v4l_querycap(const struct v4l2_ioctl_ops *ops,
 				struct file *file, void *fh, void *arg)
 {
@@ -1564,6 +1723,38 @@ static void v4l_pix_format_touch(struct v4l2_pix_format *p)
 	p->xfer_func = 0;
 }
 
+static int v4l_g_fmt_ext_pix(const struct v4l2_ioctl_ops *ops,
+			     struct file *file, void *fh,
+			     struct v4l2_format *f)
+{
+	struct v4l2_ext_pix_format ef;
+	int ret;
+
+	switch (f->type) {
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
+		ef.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+		ret = ops->vidioc_g_ext_pix_fmt_vid_cap(file, fh, &ef);
+		break;
+
+	case V4L2_BUF_TYPE_VIDEO_OUTPUT:
+	case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
+		ef.type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
+		ret = ops->vidioc_g_ext_pix_fmt_vid_out(file, fh, &ef);
+		break;
+
+	default:
+		return -EINVAL;
+	}
+
+	if (ret)
+		return ret;
+
+	return v4l2_ext_pix_format_to_format(&ef, f,
+					     V4L2_TYPE_IS_MULTIPLANAR(f->type),
+					     true);
+}
+
 static int v4l_g_fmt(const struct v4l2_ioctl_ops *ops,
 				struct file *file, void *fh, void *arg)
 {
@@ -1600,17 +1791,27 @@ static int v4l_g_fmt(const struct v4l2_ioctl_ops *ops,
 
 	switch (p->type) {
 	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
-		if (unlikely(!ops->vidioc_g_fmt_vid_cap))
-			break;
-		p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
-		ret = ops->vidioc_g_fmt_vid_cap(file, fh, arg);
-		/* just in case the driver zeroed it again */
-		p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
-		if (vfd->vfl_type == VFL_TYPE_TOUCH)
-			v4l_pix_format_touch(&p->fmt.pix);
-		return ret;
+		if (ops->vidioc_g_fmt_vid_cap) {
+			p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
+			ret = ops->vidioc_g_fmt_vid_cap(file, fh, arg);
+			/* just in case the driver zeroed it again */
+			p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
+			if (vfd->vfl_type == VFL_TYPE_TOUCH)
+				v4l_pix_format_touch(&p->fmt.pix);
+			return ret;
+		} else if (ops->vidioc_g_ext_pix_fmt_vid_cap) {
+			ret = v4l_g_fmt_ext_pix(ops, file, fh, p);
+			if (vfd->vfl_type == VFL_TYPE_TOUCH)
+				v4l_pix_format_touch(&p->fmt.pix);
+			return ret;
+		}
+		break;
 	case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
-		return ops->vidioc_g_fmt_vid_cap_mplane(file, fh, arg);
+		if (ops->vidioc_g_fmt_vid_cap_mplane)
+			return ops->vidioc_g_fmt_vid_cap_mplane(file, fh, arg);
+		else if (ops->vidioc_g_ext_pix_fmt_vid_cap)
+			return v4l_g_fmt_ext_pix(ops, file, fh, p);
+		break;
 	case V4L2_BUF_TYPE_VIDEO_OVERLAY:
 		return ops->vidioc_g_fmt_vid_overlay(file, fh, arg);
 	case V4L2_BUF_TYPE_VBI_CAPTURE:
@@ -1618,15 +1819,22 @@ static int v4l_g_fmt(const struct v4l2_ioctl_ops *ops,
 	case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
 		return ops->vidioc_g_fmt_sliced_vbi_cap(file, fh, arg);
 	case V4L2_BUF_TYPE_VIDEO_OUTPUT:
-		if (unlikely(!ops->vidioc_g_fmt_vid_out))
-			break;
-		p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
-		ret = ops->vidioc_g_fmt_vid_out(file, fh, arg);
-		/* just in case the driver zeroed it again */
-		p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
-		return ret;
+		if (ops->vidioc_g_fmt_vid_out) {
+			p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
+			ret = ops->vidioc_g_fmt_vid_out(file, fh, arg);
+			/* just in case the driver zeroed it again */
+			p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
+			return ret;
+		} else if (ops->vidioc_g_ext_pix_fmt_vid_out) {
+			return v4l_g_fmt_ext_pix(ops, file, fh, p);
+		}
+		break;
 	case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
-		return ops->vidioc_g_fmt_vid_out_mplane(file, fh, arg);
+		if (ops->vidioc_g_fmt_vid_out_mplane)
+			return ops->vidioc_g_fmt_vid_out_mplane(file, fh, arg);
+		else if (ops->vidioc_g_ext_pix_fmt_vid_out)
+			return v4l_g_fmt_ext_pix(ops, file, fh, p);
+		break;
 	case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
 		return ops->vidioc_g_fmt_vid_out_overlay(file, fh, arg);
 	case V4L2_BUF_TYPE_VBI_OUTPUT:
@@ -1645,6 +1853,76 @@ static int v4l_g_fmt(const struct v4l2_ioctl_ops *ops,
 	return -EINVAL;
 }
 
+static int v4l_g_ext_pix_fmt(const struct v4l2_ioctl_ops *ops,
+			     struct file *file, void *fh, void *arg)
+{
+	struct v4l2_ext_pix_format *ef = arg;
+	struct v4l2_format f = {
+		.type = ef->type,
+	};
+	int ret;
+
+	ret = check_fmt(file, ef->type);
+	if (ret)
+		return ret;
+
+	memset(ef, 0, sizeof(*ef));
+	ef->type = f.type;
+
+	switch (f.type) {
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+		if (ops->vidioc_g_ext_pix_fmt_vid_cap)
+			return ops->vidioc_g_ext_pix_fmt_vid_cap(file, fh, ef);
+		break;
+	case V4L2_BUF_TYPE_VIDEO_OUTPUT:
+		if (ops->vidioc_g_ext_pix_fmt_vid_out)
+			return ops->vidioc_g_ext_pix_fmt_vid_out(file, fh, ef);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	ret = v4l_g_fmt(ops, file, fh, &f);
+	if (ret)
+		return ret;
+
+	return v4l2_format_to_ext_pix_format(&f, ef, true);
+}
+
+static int v4l_s_fmt_ext_pix(const struct v4l2_ioctl_ops *ops,
+			     struct file *file, void *fh,
+			     struct v4l2_format *f)
+{
+	struct v4l2_ext_pix_format ef;
+	int ret;
+
+	ret = v4l2_format_to_ext_pix_format(f, &ef, false);
+	if (ret)
+		return ret;
+
+	switch (f->type) {
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
+		ret = ops->vidioc_s_ext_pix_fmt_vid_cap(file, fh, &ef);
+		break;
+
+	case V4L2_BUF_TYPE_VIDEO_OUTPUT:
+	case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
+		ret = ops->vidioc_s_ext_pix_fmt_vid_out(file, fh, &ef);
+		break;
+
+	default:
+		return -EINVAL;
+	}
+
+	if (ret)
+		return ret;
+
+	return v4l2_ext_pix_format_to_format(&ef, f,
+					     V4L2_TYPE_IS_MULTIPLANAR(f->type),
+					     true);
+}
+
 static int v4l_s_fmt(const struct v4l2_ioctl_ops *ops,
 				struct file *file, void *fh, void *arg)
 {
@@ -1663,23 +1941,31 @@ static int v4l_s_fmt(const struct v4l2_ioctl_ops *ops,
 
 	switch (p->type) {
 	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
-		if (unlikely(!ops->vidioc_s_fmt_vid_cap))
+		if (ops->vidioc_s_fmt_vid_cap) {
+			CLEAR_AFTER_FIELD(p, fmt.pix);
+			ret = ops->vidioc_s_fmt_vid_cap(file, fh, arg);
+			/* just in case the driver zeroed it again */
+			p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
+		} else if (ops->vidioc_s_ext_pix_fmt_vid_cap) {
+			ret = v4l_s_fmt_ext_pix(ops, file, fh, arg);
+		} else {
 			break;
-		CLEAR_AFTER_FIELD(p, fmt.pix);
-		ret = ops->vidioc_s_fmt_vid_cap(file, fh, arg);
-		/* just in case the driver zeroed it again */
-		p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
+		}
+
 		if (vfd->vfl_type == VFL_TYPE_TOUCH)
 			v4l_pix_format_touch(&p->fmt.pix);
 		return ret;
 	case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
-		if (unlikely(!ops->vidioc_s_fmt_vid_cap_mplane))
-			break;
-		CLEAR_AFTER_FIELD(p, fmt.pix_mp.xfer_func);
-		for (i = 0; i < p->fmt.pix_mp.num_planes; i++)
-			CLEAR_AFTER_FIELD(&p->fmt.pix_mp.plane_fmt[i],
-					  bytesperline);
-		return ops->vidioc_s_fmt_vid_cap_mplane(file, fh, arg);
+		if (ops->vidioc_s_fmt_vid_cap_mplane) {
+			CLEAR_AFTER_FIELD(p, fmt.pix_mp.xfer_func);
+			for (i = 0; i < p->fmt.pix_mp.num_planes; i++)
+				CLEAR_AFTER_FIELD(&p->fmt.pix_mp.plane_fmt[i],
+						  bytesperline);
+			return ops->vidioc_s_fmt_vid_cap_mplane(file, fh, arg);
+		} else if (ops->vidioc_s_ext_pix_fmt_vid_cap) {
+			return v4l_s_fmt_ext_pix(ops, file, fh, arg);
+		}
+		break;
 	case V4L2_BUF_TYPE_VIDEO_OVERLAY:
 		if (unlikely(!ops->vidioc_s_fmt_vid_overlay))
 			break;
@@ -1696,21 +1982,27 @@ static int v4l_s_fmt(const struct v4l2_ioctl_ops *ops,
 		CLEAR_AFTER_FIELD(p, fmt.sliced.io_size);
 		return ops->vidioc_s_fmt_sliced_vbi_cap(file, fh, arg);
 	case V4L2_BUF_TYPE_VIDEO_OUTPUT:
-		if (unlikely(!ops->vidioc_s_fmt_vid_out))
-			break;
-		CLEAR_AFTER_FIELD(p, fmt.pix);
-		ret = ops->vidioc_s_fmt_vid_out(file, fh, arg);
-		/* just in case the driver zeroed it again */
-		p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
-		return ret;
+		if (ops->vidioc_s_fmt_vid_out) {
+			CLEAR_AFTER_FIELD(p, fmt.pix);
+			ret = ops->vidioc_s_fmt_vid_out(file, fh, arg);
+			/* just in case the driver zeroed it again */
+			p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
+			return ret;
+		} else if (ops->vidioc_s_ext_pix_fmt_vid_out) {
+			return v4l_s_fmt_ext_pix(ops, file, fh, arg);
+		}
+		break;
 	case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
-		if (unlikely(!ops->vidioc_s_fmt_vid_out_mplane))
-			break;
-		CLEAR_AFTER_FIELD(p, fmt.pix_mp.xfer_func);
-		for (i = 0; i < p->fmt.pix_mp.num_planes; i++)
-			CLEAR_AFTER_FIELD(&p->fmt.pix_mp.plane_fmt[i],
-					  bytesperline);
-		return ops->vidioc_s_fmt_vid_out_mplane(file, fh, arg);
+		if (ops->vidioc_s_fmt_vid_out_mplane) {
+			CLEAR_AFTER_FIELD(p, fmt.pix_mp.xfer_func);
+			for (i = 0; i < p->fmt.pix_mp.num_planes; i++)
+				CLEAR_AFTER_FIELD(&p->fmt.pix_mp.plane_fmt[i],
+						  bytesperline);
+			return ops->vidioc_s_fmt_vid_out_mplane(file, fh, arg);
+		} else if (ops->vidioc_s_ext_pix_fmt_vid_out) {
+			return v4l_s_fmt_ext_pix(ops, file, fh, arg);
+		}
+		break;
 	case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
 		if (unlikely(!ops->vidioc_s_fmt_vid_out_overlay))
 			break;
@@ -1750,6 +2042,82 @@ static int v4l_s_fmt(const struct v4l2_ioctl_ops *ops,
 	return -EINVAL;
 }
 
+static int v4l_s_ext_pix_fmt(const struct v4l2_ioctl_ops *ops,
+			     struct file *file, void *fh, void *arg)
+{
+	struct video_device *vfd = video_devdata(file);
+	struct v4l2_ext_pix_format *ef = arg;
+	struct v4l2_format f;
+	int ret;
+
+	ret = check_fmt(file, ef->type);
+	if (ret)
+		return ret;
+
+	switch (ef->type) {
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+		if (ops->vidioc_s_ext_pix_fmt_vid_cap)
+			return ops->vidioc_s_ext_pix_fmt_vid_cap(file, fh, ef);
+		break;
+	case V4L2_BUF_TYPE_VIDEO_OUTPUT:
+		if (ops->vidioc_s_ext_pix_fmt_vid_out)
+			return ops->vidioc_s_ext_pix_fmt_vid_out(file, fh, ef);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	ret = v4l2_ext_pix_format_to_format(ef, &f,
+					    vfd->device_caps &
+					    (V4L2_CAP_VIDEO_CAPTURE_MPLANE |
+					     V4L2_CAP_VIDEO_OUTPUT_MPLANE |
+					     V4L2_CAP_VIDEO_M2M_MPLANE),
+					    false);
+	if (ret)
+		return ret;
+
+	ret = v4l_s_fmt(ops, file, fh, &f);
+	if (ret)
+		return ret;
+
+	return v4l2_format_to_ext_pix_format(&f, ef, true);
+}
+
+static int v4l_try_fmt_ext_pix(const struct v4l2_ioctl_ops *ops,
+			       struct file *file, void *fh,
+			       struct v4l2_format *f)
+{
+	struct v4l2_ext_pix_format ef;
+	int ret;
+
+	ret = v4l2_format_to_ext_pix_format(f, &ef, false);
+	if (ret)
+		return ret;
+
+	switch (f->type) {
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
+		ret = ops->vidioc_try_ext_pix_fmt_vid_cap(file, fh, &ef);
+		break;
+
+	case V4L2_BUF_TYPE_VIDEO_OUTPUT:
+	case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
+		ret = ops->vidioc_try_ext_pix_fmt_vid_out(file, fh, &ef);
+		break;
+
+	default:
+		return -EINVAL;
+	}
+
+	if (ret)
+		return ret;
+
+	return v4l2_ext_pix_format_to_format(&ef, f,
+					     V4L2_TYPE_IS_MULTIPLANAR(f->type),
+					     true);
+}
+
+
 static int v4l_try_fmt(const struct v4l2_ioctl_ops *ops,
 				struct file *file, void *fh, void *arg)
 {
@@ -1765,23 +2133,32 @@ static int v4l_try_fmt(const struct v4l2_ioctl_ops *ops,
 
 	switch (p->type) {
 	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
-		if (unlikely(!ops->vidioc_try_fmt_vid_cap))
-			break;
-		CLEAR_AFTER_FIELD(p, fmt.pix);
-		ret = ops->vidioc_try_fmt_vid_cap(file, fh, arg);
-		/* just in case the driver zeroed it again */
-		p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
-		if (vfd->vfl_type == VFL_TYPE_TOUCH)
-			v4l_pix_format_touch(&p->fmt.pix);
-		return ret;
+		if (ops->vidioc_try_fmt_vid_cap) {
+			CLEAR_AFTER_FIELD(p, fmt.pix);
+			ret = ops->vidioc_try_fmt_vid_cap(file, fh, arg);
+			/* just in case the driver zeroed it again */
+			p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
+			if (vfd->vfl_type == VFL_TYPE_TOUCH)
+				v4l_pix_format_touch(&p->fmt.pix);
+			return ret;
+		} else if (ops->vidioc_try_ext_pix_fmt_vid_cap) {
+			ret = v4l_try_fmt_ext_pix(ops, file, fh, p);
+			if (vfd->vfl_type == VFL_TYPE_TOUCH)
+				v4l_pix_format_touch(&p->fmt.pix);
+			return ret;
+		}
+		break;
 	case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
-		if (unlikely(!ops->vidioc_try_fmt_vid_cap_mplane))
-			break;
-		CLEAR_AFTER_FIELD(p, fmt.pix_mp.xfer_func);
-		for (i = 0; i < p->fmt.pix_mp.num_planes; i++)
-			CLEAR_AFTER_FIELD(&p->fmt.pix_mp.plane_fmt[i],
-					  bytesperline);
-		return ops->vidioc_try_fmt_vid_cap_mplane(file, fh, arg);
+		if (ops->vidioc_try_fmt_vid_cap_mplane) {
+			CLEAR_AFTER_FIELD(p, fmt.pix_mp.xfer_func);
+			for (i = 0; i < p->fmt.pix_mp.num_planes; i++)
+				CLEAR_AFTER_FIELD(&p->fmt.pix_mp.plane_fmt[i],
+						  bytesperline);
+			return ops->vidioc_try_fmt_vid_cap_mplane(file, fh, arg);
+		} else if (ops->vidioc_try_ext_pix_fmt_vid_cap) {
+			return v4l_try_fmt_ext_pix(ops, file, fh, p);
+		}
+		break;
 	case V4L2_BUF_TYPE_VIDEO_OVERLAY:
 		if (unlikely(!ops->vidioc_try_fmt_vid_overlay))
 			break;
@@ -1798,21 +2175,27 @@ static int v4l_try_fmt(const struct v4l2_ioctl_ops *ops,
 		CLEAR_AFTER_FIELD(p, fmt.sliced.io_size);
 		return ops->vidioc_try_fmt_sliced_vbi_cap(file, fh, arg);
 	case V4L2_BUF_TYPE_VIDEO_OUTPUT:
-		if (unlikely(!ops->vidioc_try_fmt_vid_out))
-			break;
-		CLEAR_AFTER_FIELD(p, fmt.pix);
-		ret = ops->vidioc_try_fmt_vid_out(file, fh, arg);
-		/* just in case the driver zeroed it again */
-		p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
-		return ret;
+		if (ops->vidioc_try_fmt_vid_out) {
+			CLEAR_AFTER_FIELD(p, fmt.pix);
+			ret = ops->vidioc_try_fmt_vid_out(file, fh, arg);
+			/* just in case the driver zeroed it again */
+			p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
+			return ret;
+		} else if (ops->vidioc_try_ext_pix_fmt_vid_cap) {
+			return v4l_try_fmt_ext_pix(ops, file, fh, p);
+		}
+		break;
 	case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
-		if (unlikely(!ops->vidioc_try_fmt_vid_out_mplane))
-			break;
-		CLEAR_AFTER_FIELD(p, fmt.pix_mp.xfer_func);
-		for (i = 0; i < p->fmt.pix_mp.num_planes; i++)
-			CLEAR_AFTER_FIELD(&p->fmt.pix_mp.plane_fmt[i],
-					  bytesperline);
-		return ops->vidioc_try_fmt_vid_out_mplane(file, fh, arg);
+		if (ops->vidioc_try_fmt_vid_out_mplane) {
+			CLEAR_AFTER_FIELD(p, fmt.pix_mp.xfer_func);
+			for (i = 0; i < p->fmt.pix_mp.num_planes; i++)
+				CLEAR_AFTER_FIELD(&p->fmt.pix_mp.plane_fmt[i],
+						  bytesperline);
+			return ops->vidioc_try_fmt_vid_out_mplane(file, fh, arg);
+		} else if (ops->vidioc_try_ext_pix_fmt_vid_cap) {
+			return v4l_try_fmt_ext_pix(ops, file, fh, p);
+		}
+		break;
 	case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
 		if (unlikely(!ops->vidioc_try_fmt_vid_out_overlay))
 			break;
@@ -1852,6 +2235,49 @@ static int v4l_try_fmt(const struct v4l2_ioctl_ops *ops,
 	return -EINVAL;
 }
 
+static int v4l_try_ext_pix_fmt(const struct v4l2_ioctl_ops *ops,
+			       struct file *file, void *fh, void *arg)
+{
+	struct video_device *vfd = video_devdata(file);
+	struct v4l2_ext_pix_format *ef = arg;
+	struct v4l2_format f;
+	int ret;
+
+	ret = check_fmt(file, ef->type);
+	if (ret)
+		return ret;
+
+	switch (ef->type) {
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+		if (ops->vidioc_try_ext_pix_fmt_vid_cap)
+			return ops->vidioc_try_ext_pix_fmt_vid_cap(file, fh,
+								   ef);
+		break;
+	case V4L2_BUF_TYPE_VIDEO_OUTPUT:
+		if (ops->vidioc_try_ext_pix_fmt_vid_out)
+			return ops->vidioc_try_ext_pix_fmt_vid_out(file, fh,
+								   ef);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	ret = v4l2_ext_pix_format_to_format(ef, &f,
+					    vfd->device_caps &
+					    (V4L2_CAP_VIDEO_CAPTURE_MPLANE |
+					     V4L2_CAP_VIDEO_OUTPUT_MPLANE |
+					     V4L2_CAP_VIDEO_M2M_MPLANE),
+					    false);
+	if (ret)
+		return ret;
+
+	ret = v4l_try_fmt(ops, file, fh, &f);
+	if (ret)
+		return ret;
+
+	return v4l2_format_to_ext_pix_format(&f, ef, true);
+}
+
 static int v4l_streamon(const struct v4l2_ioctl_ops *ops,
 				struct file *file, void *fh, void *arg)
 {
@@ -2771,7 +3197,9 @@ static const struct v4l2_ioctl_info v4l2_ioctls[] = {
 	IOCTL_INFO(VIDIOC_QUERYCAP, v4l_querycap, v4l_print_querycap, 0),
 	IOCTL_INFO(VIDIOC_ENUM_FMT, v4l_enum_fmt, v4l_print_fmtdesc, 0),
 	IOCTL_INFO(VIDIOC_G_FMT, v4l_g_fmt, v4l_print_format, 0),
+	IOCTL_INFO(VIDIOC_G_EXT_PIX_FMT, v4l_g_ext_pix_fmt, v4l_print_ext_pix_format, 0),
 	IOCTL_INFO(VIDIOC_S_FMT, v4l_s_fmt, v4l_print_format, INFO_FL_PRIO),
+	IOCTL_INFO(VIDIOC_S_EXT_PIX_FMT, v4l_s_ext_pix_fmt, v4l_print_ext_pix_format, INFO_FL_PRIO),
 	IOCTL_INFO(VIDIOC_REQBUFS, v4l_reqbufs, v4l_print_requestbuffers, INFO_FL_PRIO | INFO_FL_QUEUE),
 	IOCTL_INFO(VIDIOC_QUERYBUF, v4l_querybuf, v4l_print_buffer, INFO_FL_QUEUE | INFO_FL_CLEAR(v4l2_buffer, length)),
 	IOCTL_INFO(VIDIOC_G_FBUF, v4l_stub_g_fbuf, v4l_print_framebuffer, 0),
@@ -2818,6 +3246,7 @@ static const struct v4l2_ioctl_info v4l2_ioctls[] = {
 	IOCTL_INFO(VIDIOC_S_JPEGCOMP, v4l_stub_s_jpegcomp, v4l_print_jpegcompression, INFO_FL_PRIO),
 	IOCTL_INFO(VIDIOC_QUERYSTD, v4l_querystd, v4l_print_std, 0),
 	IOCTL_INFO(VIDIOC_TRY_FMT, v4l_try_fmt, v4l_print_format, 0),
+	IOCTL_INFO(VIDIOC_TRY_EXT_PIX_FMT, v4l_try_ext_pix_fmt, v4l_print_ext_pix_format, 0),
 	IOCTL_INFO(VIDIOC_ENUMAUDIO, v4l_stub_enumaudio, v4l_print_audio, INFO_FL_CLEAR(v4l2_audio, index)),
 	IOCTL_INFO(VIDIOC_ENUMAUDOUT, v4l_stub_enumaudout, v4l_print_audioout, INFO_FL_CLEAR(v4l2_audioout, index)),
 	IOCTL_INFO(VIDIOC_G_PRIORITY, v4l_g_priority, v4l_print_u32, 0),
diff --git a/include/media/v4l2-ioctl.h b/include/media/v4l2-ioctl.h
index 86878fba332b0..8bbcb74d8ee31 100644
--- a/include/media/v4l2-ioctl.h
+++ b/include/media/v4l2-ioctl.h
@@ -48,11 +48,17 @@ struct v4l2_fh;
  * @vidioc_g_fmt_vid_cap: pointer to the function that implements
  *	:ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for video capture
  *	in single plane mode
+ * @vidioc_g_ext_pix_fmt_vid_cap: pointer to the function that implements
+ *	:ref:`VIDIOC_G_EXT_PIX_FMT <vidioc_g_ext_pix_fmt>` ioctl logic for video
+ *	capture
  * @vidioc_g_fmt_vid_overlay: pointer to the function that implements
  *	:ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for video overlay
  * @vidioc_g_fmt_vid_out: pointer to the function that implements
  *	:ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for video out
  *	in single plane mode
+ * @vidioc_g_ext_pix_fmt_vid_out: pointer to the function that implements
+ *	:ref:`VIDIOC_G_EXT_PIX_FMT <vidioc_g_ext_pix_fmt>` ioctl logic for video
+ *	out
  * @vidioc_g_fmt_vid_out_overlay: pointer to the function that implements
  *	:ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for video overlay output
  * @vidioc_g_fmt_vbi_cap: pointer to the function that implements
@@ -82,11 +88,16 @@ struct v4l2_fh;
  * @vidioc_s_fmt_vid_cap: pointer to the function that implements
  *	:ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for video capture
  *	in single plane mode
+ * @vidioc_s_ext_pix_fmt_vid_cap: pointer to the function that implements
+ *	:ref:`VIDIOC_S_EXT_PIX_FMT <vidioc_g_ext_pix_fmt>` ioctl logic for video
+ *	capture
  * @vidioc_s_fmt_vid_overlay: pointer to the function that implements
  *	:ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for video overlay
  * @vidioc_s_fmt_vid_out: pointer to the function that implements
  *	:ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for video out
  *	in single plane mode
+ * @vidioc_s_ext_pix_fmt_vid_out: pointer to the function that implements
+ *	:ref:`VIDIOC_S_EXT_PIX_FMT <vidioc_g_fmt>` ioctl logic for video out
  * @vidioc_s_fmt_vid_out_overlay: pointer to the function that implements
  *	:ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for video overlay output
  * @vidioc_s_fmt_vbi_cap: pointer to the function that implements
@@ -116,11 +127,16 @@ struct v4l2_fh;
  * @vidioc_try_fmt_vid_cap: pointer to the function that implements
  *	:ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for video capture
  *	in single plane mode
+ * @vidioc_try_ext_pix_fmt_vid_cap: pointer to the function that implements
+ *	:ref:`VIDIOC_TRY_EXT_PIX_FMT <vidioc_g_ext_pix_fmt>` ioctl logic for
+	video capture
  * @vidioc_try_fmt_vid_overlay: pointer to the function that implements
  *	:ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for video overlay
  * @vidioc_try_fmt_vid_out: pointer to the function that implements
  *	:ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for video out
  *	in single plane mode
+ * @vidioc_try_ext_pix_fmt_vid_out: pointer to the function that implements
+ *	:ref:`VIDIOC_TRY_EXT_PIX_FMT <vidioc_g_fmt>` ioctl logic for video out
  * @vidioc_try_fmt_vid_out_overlay: pointer to the function that implements
  *	:ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for video overlay
  *	output
@@ -319,10 +335,14 @@ struct v4l2_ioctl_ops {
 	/* VIDIOC_G_FMT handlers */
 	int (*vidioc_g_fmt_vid_cap)(struct file *file, void *fh,
 				    struct v4l2_format *f);
+	int (*vidioc_g_ext_pix_fmt_vid_cap)(struct file *file, void *fh,
+					    struct v4l2_ext_pix_format *f);
 	int (*vidioc_g_fmt_vid_overlay)(struct file *file, void *fh,
 					struct v4l2_format *f);
 	int (*vidioc_g_fmt_vid_out)(struct file *file, void *fh,
 				    struct v4l2_format *f);
+	int (*vidioc_g_ext_pix_fmt_vid_out)(struct file *file, void *fh,
+					    struct v4l2_ext_pix_format *f);
 	int (*vidioc_g_fmt_vid_out_overlay)(struct file *file, void *fh,
 					    struct v4l2_format *f);
 	int (*vidioc_g_fmt_vbi_cap)(struct file *file, void *fh,
@@ -349,10 +369,14 @@ struct v4l2_ioctl_ops {
 	/* VIDIOC_S_FMT handlers */
 	int (*vidioc_s_fmt_vid_cap)(struct file *file, void *fh,
 				    struct v4l2_format *f);
+	int (*vidioc_s_ext_pix_fmt_vid_cap)(struct file *file, void *fh,
+					    struct v4l2_ext_pix_format *f);
 	int (*vidioc_s_fmt_vid_overlay)(struct file *file, void *fh,
 					struct v4l2_format *f);
 	int (*vidioc_s_fmt_vid_out)(struct file *file, void *fh,
 				    struct v4l2_format *f);
+	int (*vidioc_s_ext_pix_fmt_vid_out)(struct file *file, void *fh,
+					    struct v4l2_ext_pix_format *f);
 	int (*vidioc_s_fmt_vid_out_overlay)(struct file *file, void *fh,
 					    struct v4l2_format *f);
 	int (*vidioc_s_fmt_vbi_cap)(struct file *file, void *fh,
@@ -379,10 +403,14 @@ struct v4l2_ioctl_ops {
 	/* VIDIOC_TRY_FMT handlers */
 	int (*vidioc_try_fmt_vid_cap)(struct file *file, void *fh,
 				      struct v4l2_format *f);
+	int (*vidioc_try_ext_pix_fmt_vid_cap)(struct file *file, void *fh,
+					      struct v4l2_ext_pix_format *f);
 	int (*vidioc_try_fmt_vid_overlay)(struct file *file, void *fh,
 					  struct v4l2_format *f);
 	int (*vidioc_try_fmt_vid_out)(struct file *file, void *fh,
 				      struct v4l2_format *f);
+	int (*vidioc_try_ext_pix_fmt_vid_out)(struct file *file, void *fh,
+					      struct v4l2_ext_pix_format *f);
 	int (*vidioc_try_fmt_vid_out_overlay)(struct file *file, void *fh,
 					     struct v4l2_format *f);
 	int (*vidioc_try_fmt_vbi_cap)(struct file *file, void *fh,
@@ -724,6 +752,12 @@ long int video_usercopy(struct file *file, unsigned int cmd,
 long int video_ioctl2(struct file *file,
 		      unsigned int cmd, unsigned long int arg);
 
+int v4l2_format_to_ext_pix_format(const struct v4l2_format *f,
+				  struct v4l2_ext_pix_format *e, bool strict);
+int v4l2_ext_pix_format_to_format(const struct v4l2_ext_pix_format *e,
+				  struct v4l2_format *f,
+				  bool mplane_cap, bool strict);
+
 /*
  * The user space interpretation of the 'v4l2_event' differs
  * based on the 'time_t' definition on 32-bit architectures, so
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index c7b70ff53bc1d..7123c6a4d9569 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -2254,6 +2254,58 @@ struct v4l2_pix_format_mplane {
 	__u8				reserved[7];
 } __attribute__ ((packed));
 
+/**
+ * struct v4l2_plane_ext_pix_format - additional, per-plane format definition
+ * @sizeimage:		maximum size in bytes required for data, for which
+ *			this plane will be used.
+ *			Should be set to zero for unused planes.
+ * @bytesperline:	distance in bytes between the leftmost pixels in two
+ *			adjacent lines
+ * @reserved:		extra space reserved for future fields, must be set to 0
+ */
+struct v4l2_plane_ext_pix_format {
+	__u32 sizeimage;
+	__u32 bytesperline;
+	__u32 reserved;
+};
+
+/**
+ * struct v4l2_ext_pix_format - extended single/multiplanar format definition
+ * @type:		type of the data stream; V4L2_BUF_TYPE_VIDEO_CAPTURE or
+ *			V4L2_BUF_TYPE_VIDEO_OUTPUT
+ * @width:		image width in pixels
+ * @height:		image height in pixels
+ * @field:		enum v4l2_field; field order (for interlaced video)
+ * @pixelformat:	little endian four character code (fourcc)
+ * @modifier:		modifier applied to the format (used for tiled formats
+ *			and other kind of HW-specific formats, like compressed
+ *			formats)
+ * @colorspace:		enum v4l2_colorspace; supplemental to pixelformat
+ * @plane_fmt:		per-plane information
+ * @ycbcr_enc:		enum v4l2_ycbcr_encoding, Y'CbCr encoding
+ * @hsv_enc:		enum v4l2_hsv_encoding, HSV encoding
+ * @quantization:	enum v4l2_quantization, colorspace quantization
+ * @xfer_func:		enum v4l2_xfer_func, colorspace transfer function
+ * @reserved:		extra space reserved for future fields, must be set to 0
+ */
+struct v4l2_ext_pix_format {
+	__u32 type;
+	__u32 width;
+	__u32 height;
+	__u32 field;
+	__u64 modifier;
+	__u32 pixelformat;
+	__u32 colorspace;
+	struct v4l2_plane_ext_pix_format plane_fmt[VIDEO_MAX_PLANES];
+	union {
+		__u32 ycbcr_enc;
+		__u32 hsv_enc;
+	};
+	__u32 quantization;
+	__u32 xfer_func;
+	__u32 reserved[9];
+};
+
 /**
  * struct v4l2_sdr_format - SDR format definition
  * @pixelformat:	little endian four character code (fourcc)
@@ -2571,6 +2623,10 @@ struct v4l2_create_buffers {
 
 #define VIDIOC_QUERY_EXT_CTRL	_IOWR('V', 103, struct v4l2_query_ext_ctrl)
 
+#define VIDIOC_G_EXT_PIX_FMT	_IOWR('V', 104, struct v4l2_ext_pix_format)
+#define VIDIOC_S_EXT_PIX_FMT	_IOWR('V', 105, struct v4l2_ext_pix_format)
+#define VIDIOC_TRY_EXT_PIX_FMT	_IOWR('V', 106, struct v4l2_ext_pix_format)
+
 /* Reminder: when adding new ioctls please add support for them to
    drivers/media/v4l2-core/v4l2-compat-ioctl32.c as well! */
 
-- 
2.28.0.rc2