[media] v4l2-subdev: replace v4l2_subdev_fh by v4l2_subdev_pad_config
If a subdevice pad op is called from a bridge driver, then there is
no v4l2_subdev_fh struct that can be passed to the subdevice. This
made it hard to use such subdevs from a bridge driver.
This patch replaces the v4l2_subdev_fh pointer by a v4l2_subdev_pad_config
pointer in the pad ops. This allows bridge drivers to use the various
try_ pad ops by creating a v4l2_subdev_pad_config struct and passing it
along to the pad op.
The v4l2_subdev_get_try_* macros had to be changed because of this, so
I also took the opportunity to use the full name of the v4l2_subdev_get_try_*
functions in the __V4L2_SUBDEV_MK_GET_TRY macro arguments: if you now do
'git grep v4l2_subdev_get_try_format' you will actually find the header
where it is defined.
One remark regarding the drivers/staging/media/davinci_vpfe patches: the
*_init_formats() functions assumed that fh could be NULL. However, that's
not true for this driver, it's always set. This is almost certainly a copy
and paste from the omap3isp driver. I've updated the code to reflect the
fact that fh is never NULL.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Tested-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
diff --git a/drivers/media/platform/omap3isp/ispccdc.c b/drivers/media/platform/omap3isp/ispccdc.c
index 587489a..b0431a9 100644
--- a/drivers/media/platform/omap3isp/ispccdc.c
+++ b/drivers/media/platform/omap3isp/ispccdc.c
@@ -32,7 +32,7 @@
#define CCDC_MIN_HEIGHT 32
static struct v4l2_mbus_framefmt *
-__ccdc_get_format(struct isp_ccdc_device *ccdc, struct v4l2_subdev_fh *fh,
+__ccdc_get_format(struct isp_ccdc_device *ccdc, struct v4l2_subdev_pad_config *cfg,
unsigned int pad, enum v4l2_subdev_format_whence which);
static const unsigned int ccdc_fmts[] = {
@@ -1935,21 +1935,21 @@
}
static struct v4l2_mbus_framefmt *
-__ccdc_get_format(struct isp_ccdc_device *ccdc, struct v4l2_subdev_fh *fh,
+__ccdc_get_format(struct isp_ccdc_device *ccdc, struct v4l2_subdev_pad_config *cfg,
unsigned int pad, enum v4l2_subdev_format_whence which)
{
if (which == V4L2_SUBDEV_FORMAT_TRY)
- return v4l2_subdev_get_try_format(fh, pad);
+ return v4l2_subdev_get_try_format(&ccdc->subdev, cfg, pad);
else
return &ccdc->formats[pad];
}
static struct v4l2_rect *
-__ccdc_get_crop(struct isp_ccdc_device *ccdc, struct v4l2_subdev_fh *fh,
+__ccdc_get_crop(struct isp_ccdc_device *ccdc, struct v4l2_subdev_pad_config *cfg,
enum v4l2_subdev_format_whence which)
{
if (which == V4L2_SUBDEV_FORMAT_TRY)
- return v4l2_subdev_get_try_crop(fh, CCDC_PAD_SOURCE_OF);
+ return v4l2_subdev_get_try_crop(&ccdc->subdev, cfg, CCDC_PAD_SOURCE_OF);
else
return &ccdc->crop;
}
@@ -1957,12 +1957,12 @@
/*
* ccdc_try_format - Try video format on a pad
* @ccdc: ISP CCDC device
- * @fh : V4L2 subdev file handle
+ * @cfg : V4L2 subdev pad configuration
* @pad: Pad number
* @fmt: Format
*/
static void
-ccdc_try_format(struct isp_ccdc_device *ccdc, struct v4l2_subdev_fh *fh,
+ccdc_try_format(struct isp_ccdc_device *ccdc, struct v4l2_subdev_pad_config *cfg,
unsigned int pad, struct v4l2_mbus_framefmt *fmt,
enum v4l2_subdev_format_whence which)
{
@@ -1998,7 +1998,7 @@
case CCDC_PAD_SOURCE_OF:
pixelcode = fmt->code;
field = fmt->field;
- *fmt = *__ccdc_get_format(ccdc, fh, CCDC_PAD_SINK, which);
+ *fmt = *__ccdc_get_format(ccdc, cfg, CCDC_PAD_SINK, which);
/* In SYNC mode the bridge converts YUV formats from 2X8 to
* 1X16. In BT.656 no such conversion occurs. As we don't know
@@ -2023,7 +2023,7 @@
}
/* Hardcode the output size to the crop rectangle size. */
- crop = __ccdc_get_crop(ccdc, fh, which);
+ crop = __ccdc_get_crop(ccdc, cfg, which);
fmt->width = crop->width;
fmt->height = crop->height;
@@ -2040,7 +2040,7 @@
break;
case CCDC_PAD_SOURCE_VP:
- *fmt = *__ccdc_get_format(ccdc, fh, CCDC_PAD_SINK, which);
+ *fmt = *__ccdc_get_format(ccdc, cfg, CCDC_PAD_SINK, which);
/* The video port interface truncates the data to 10 bits. */
info = omap3isp_video_format_info(fmt->code);
@@ -2112,12 +2112,12 @@
/*
* ccdc_enum_mbus_code - Handle pixel format enumeration
* @sd : pointer to v4l2 subdev structure
- * @fh : V4L2 subdev file handle
+ * @cfg : V4L2 subdev pad configuration
* @code : pointer to v4l2_subdev_mbus_code_enum structure
* return -EINVAL or zero on success
*/
static int ccdc_enum_mbus_code(struct v4l2_subdev *sd,
- struct v4l2_subdev_fh *fh,
+ struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_mbus_code_enum *code)
{
struct isp_ccdc_device *ccdc = v4l2_get_subdevdata(sd);
@@ -2132,7 +2132,7 @@
break;
case CCDC_PAD_SOURCE_OF:
- format = __ccdc_get_format(ccdc, fh, code->pad,
+ format = __ccdc_get_format(ccdc, cfg, code->pad,
V4L2_SUBDEV_FORMAT_TRY);
if (format->code == MEDIA_BUS_FMT_YUYV8_2X8 ||
@@ -2163,7 +2163,7 @@
if (code->index != 0)
return -EINVAL;
- format = __ccdc_get_format(ccdc, fh, code->pad,
+ format = __ccdc_get_format(ccdc, cfg, code->pad,
V4L2_SUBDEV_FORMAT_TRY);
/* A pixel code equal to 0 means that the video port doesn't
@@ -2183,7 +2183,7 @@
}
static int ccdc_enum_frame_size(struct v4l2_subdev *sd,
- struct v4l2_subdev_fh *fh,
+ struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_frame_size_enum *fse)
{
struct isp_ccdc_device *ccdc = v4l2_get_subdevdata(sd);
@@ -2195,7 +2195,7 @@
format.code = fse->code;
format.width = 1;
format.height = 1;
- ccdc_try_format(ccdc, fh, fse->pad, &format, V4L2_SUBDEV_FORMAT_TRY);
+ ccdc_try_format(ccdc, cfg, fse->pad, &format, V4L2_SUBDEV_FORMAT_TRY);
fse->min_width = format.width;
fse->min_height = format.height;
@@ -2205,7 +2205,7 @@
format.code = fse->code;
format.width = -1;
format.height = -1;
- ccdc_try_format(ccdc, fh, fse->pad, &format, V4L2_SUBDEV_FORMAT_TRY);
+ ccdc_try_format(ccdc, cfg, fse->pad, &format, V4L2_SUBDEV_FORMAT_TRY);
fse->max_width = format.width;
fse->max_height = format.height;
@@ -2215,7 +2215,7 @@
/*
* ccdc_get_selection - Retrieve a selection rectangle on a pad
* @sd: ISP CCDC V4L2 subdevice
- * @fh: V4L2 subdev file handle
+ * @cfg: V4L2 subdev pad configuration
* @sel: Selection rectangle
*
* The only supported rectangles are the crop rectangles on the output formatter
@@ -2223,7 +2223,7 @@
*
* Return 0 on success or a negative error code otherwise.
*/
-static int ccdc_get_selection(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
+static int ccdc_get_selection(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_selection *sel)
{
struct isp_ccdc_device *ccdc = v4l2_get_subdevdata(sd);
@@ -2239,12 +2239,12 @@
sel->r.width = INT_MAX;
sel->r.height = INT_MAX;
- format = __ccdc_get_format(ccdc, fh, CCDC_PAD_SINK, sel->which);
+ format = __ccdc_get_format(ccdc, cfg, CCDC_PAD_SINK, sel->which);
ccdc_try_crop(ccdc, format, &sel->r);
break;
case V4L2_SEL_TGT_CROP:
- sel->r = *__ccdc_get_crop(ccdc, fh, sel->which);
+ sel->r = *__ccdc_get_crop(ccdc, cfg, sel->which);
break;
default:
@@ -2257,7 +2257,7 @@
/*
* ccdc_set_selection - Set a selection rectangle on a pad
* @sd: ISP CCDC V4L2 subdevice
- * @fh: V4L2 subdev file handle
+ * @cfg: V4L2 subdev pad configuration
* @sel: Selection rectangle
*
* The only supported rectangle is the actual crop rectangle on the output
@@ -2265,7 +2265,7 @@
*
* Return 0 on success or a negative error code otherwise.
*/
-static int ccdc_set_selection(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
+static int ccdc_set_selection(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_selection *sel)
{
struct isp_ccdc_device *ccdc = v4l2_get_subdevdata(sd);
@@ -2284,17 +2284,17 @@
* rectangle.
*/
if (sel->flags & V4L2_SEL_FLAG_KEEP_CONFIG) {
- sel->r = *__ccdc_get_crop(ccdc, fh, sel->which);
+ sel->r = *__ccdc_get_crop(ccdc, cfg, sel->which);
return 0;
}
- format = __ccdc_get_format(ccdc, fh, CCDC_PAD_SINK, sel->which);
+ format = __ccdc_get_format(ccdc, cfg, CCDC_PAD_SINK, sel->which);
ccdc_try_crop(ccdc, format, &sel->r);
- *__ccdc_get_crop(ccdc, fh, sel->which) = sel->r;
+ *__ccdc_get_crop(ccdc, cfg, sel->which) = sel->r;
/* Update the source format. */
- format = __ccdc_get_format(ccdc, fh, CCDC_PAD_SOURCE_OF, sel->which);
- ccdc_try_format(ccdc, fh, CCDC_PAD_SOURCE_OF, format, sel->which);
+ format = __ccdc_get_format(ccdc, cfg, CCDC_PAD_SOURCE_OF, sel->which);
+ ccdc_try_format(ccdc, cfg, CCDC_PAD_SOURCE_OF, format, sel->which);
return 0;
}
@@ -2302,19 +2302,19 @@
/*
* ccdc_get_format - Retrieve the video format on a pad
* @sd : ISP CCDC V4L2 subdevice
- * @fh : V4L2 subdev file handle
+ * @cfg: V4L2 subdev pad configuration
* @fmt: Format
*
* Return 0 on success or -EINVAL if the pad is invalid or doesn't correspond
* to the format type.
*/
-static int ccdc_get_format(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
+static int ccdc_get_format(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_format *fmt)
{
struct isp_ccdc_device *ccdc = v4l2_get_subdevdata(sd);
struct v4l2_mbus_framefmt *format;
- format = __ccdc_get_format(ccdc, fh, fmt->pad, fmt->which);
+ format = __ccdc_get_format(ccdc, cfg, fmt->pad, fmt->which);
if (format == NULL)
return -EINVAL;
@@ -2325,30 +2325,30 @@
/*
* ccdc_set_format - Set the video format on a pad
* @sd : ISP CCDC V4L2 subdevice
- * @fh : V4L2 subdev file handle
+ * @cfg: V4L2 subdev pad configuration
* @fmt: Format
*
* Return 0 on success or -EINVAL if the pad is invalid or doesn't correspond
* to the format type.
*/
-static int ccdc_set_format(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
+static int ccdc_set_format(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_format *fmt)
{
struct isp_ccdc_device *ccdc = v4l2_get_subdevdata(sd);
struct v4l2_mbus_framefmt *format;
struct v4l2_rect *crop;
- format = __ccdc_get_format(ccdc, fh, fmt->pad, fmt->which);
+ format = __ccdc_get_format(ccdc, cfg, fmt->pad, fmt->which);
if (format == NULL)
return -EINVAL;
- ccdc_try_format(ccdc, fh, fmt->pad, &fmt->format, fmt->which);
+ ccdc_try_format(ccdc, cfg, fmt->pad, &fmt->format, fmt->which);
*format = fmt->format;
/* Propagate the format from sink to source */
if (fmt->pad == CCDC_PAD_SINK) {
/* Reset the crop rectangle. */
- crop = __ccdc_get_crop(ccdc, fh, fmt->which);
+ crop = __ccdc_get_crop(ccdc, cfg, fmt->which);
crop->left = 0;
crop->top = 0;
crop->width = fmt->format.width;
@@ -2357,16 +2357,16 @@
ccdc_try_crop(ccdc, &fmt->format, crop);
/* Update the source formats. */
- format = __ccdc_get_format(ccdc, fh, CCDC_PAD_SOURCE_OF,
+ format = __ccdc_get_format(ccdc, cfg, CCDC_PAD_SOURCE_OF,
fmt->which);
*format = fmt->format;
- ccdc_try_format(ccdc, fh, CCDC_PAD_SOURCE_OF, format,
+ ccdc_try_format(ccdc, cfg, CCDC_PAD_SOURCE_OF, format,
fmt->which);
- format = __ccdc_get_format(ccdc, fh, CCDC_PAD_SOURCE_VP,
+ format = __ccdc_get_format(ccdc, cfg, CCDC_PAD_SOURCE_VP,
fmt->which);
*format = fmt->format;
- ccdc_try_format(ccdc, fh, CCDC_PAD_SOURCE_VP, format,
+ ccdc_try_format(ccdc, cfg, CCDC_PAD_SOURCE_VP, format,
fmt->which);
}
@@ -2453,7 +2453,7 @@
format.format.code = MEDIA_BUS_FMT_SGRBG10_1X10;
format.format.width = 4096;
format.format.height = 4096;
- ccdc_set_format(sd, fh, &format);
+ ccdc_set_format(sd, fh ? fh->pad : NULL, &format);
return 0;
}