[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/ispcsi2.c b/drivers/media/platform/omap3isp/ispcsi2.c
index 09c686d..12ca63f 100644
--- a/drivers/media/platform/omap3isp/ispcsi2.c
+++ b/drivers/media/platform/omap3isp/ispcsi2.c
@@ -829,17 +829,17 @@
*/
static struct v4l2_mbus_framefmt *
-__csi2_get_format(struct isp_csi2_device *csi2, struct v4l2_subdev_fh *fh,
+__csi2_get_format(struct isp_csi2_device *csi2, 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(&csi2->subdev, cfg, pad);
else
return &csi2->formats[pad];
}
static void
-csi2_try_format(struct isp_csi2_device *csi2, struct v4l2_subdev_fh *fh,
+csi2_try_format(struct isp_csi2_device *csi2, struct v4l2_subdev_pad_config *cfg,
unsigned int pad, struct v4l2_mbus_framefmt *fmt,
enum v4l2_subdev_format_whence which)
{
@@ -869,7 +869,7 @@
* compression.
*/
pixelcode = fmt->code;
- format = __csi2_get_format(csi2, fh, CSI2_PAD_SINK, which);
+ format = __csi2_get_format(csi2, cfg, CSI2_PAD_SINK, which);
memcpy(fmt, format, sizeof(*fmt));
/*
@@ -890,12 +890,12 @@
/*
* csi2_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 csi2_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_csi2_device *csi2 = v4l2_get_subdevdata(sd);
@@ -908,7 +908,7 @@
code->code = csi2_input_fmts[code->index];
} else {
- format = __csi2_get_format(csi2, fh, CSI2_PAD_SINK,
+ format = __csi2_get_format(csi2, cfg, CSI2_PAD_SINK,
V4L2_SUBDEV_FORMAT_TRY);
switch (code->index) {
case 0:
@@ -932,7 +932,7 @@
}
static int csi2_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_csi2_device *csi2 = v4l2_get_subdevdata(sd);
@@ -944,7 +944,7 @@
format.code = fse->code;
format.width = 1;
format.height = 1;
- csi2_try_format(csi2, fh, fse->pad, &format, V4L2_SUBDEV_FORMAT_TRY);
+ csi2_try_format(csi2, cfg, fse->pad, &format, V4L2_SUBDEV_FORMAT_TRY);
fse->min_width = format.width;
fse->min_height = format.height;
@@ -954,7 +954,7 @@
format.code = fse->code;
format.width = -1;
format.height = -1;
- csi2_try_format(csi2, fh, fse->pad, &format, V4L2_SUBDEV_FORMAT_TRY);
+ csi2_try_format(csi2, cfg, fse->pad, &format, V4L2_SUBDEV_FORMAT_TRY);
fse->max_width = format.width;
fse->max_height = format.height;
@@ -964,17 +964,17 @@
/*
* csi2_get_format - Handle get format by pads subdev method
* @sd : pointer to v4l2 subdev structure
- * @fh : V4L2 subdev file handle
+ * @cfg: V4L2 subdev pad configuration
* @fmt: pointer to v4l2 subdev format structure
* return -EINVAL or zero on success
*/
-static int csi2_get_format(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
+static int csi2_get_format(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_format *fmt)
{
struct isp_csi2_device *csi2 = v4l2_get_subdevdata(sd);
struct v4l2_mbus_framefmt *format;
- format = __csi2_get_format(csi2, fh, fmt->pad, fmt->which);
+ format = __csi2_get_format(csi2, cfg, fmt->pad, fmt->which);
if (format == NULL)
return -EINVAL;
@@ -985,29 +985,29 @@
/*
* csi2_set_format - Handle set format by pads subdev method
* @sd : pointer to v4l2 subdev structure
- * @fh : V4L2 subdev file handle
+ * @cfg: V4L2 subdev pad configuration
* @fmt: pointer to v4l2 subdev format structure
* return -EINVAL or zero on success
*/
-static int csi2_set_format(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
+static int csi2_set_format(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_format *fmt)
{
struct isp_csi2_device *csi2 = v4l2_get_subdevdata(sd);
struct v4l2_mbus_framefmt *format;
- format = __csi2_get_format(csi2, fh, fmt->pad, fmt->which);
+ format = __csi2_get_format(csi2, cfg, fmt->pad, fmt->which);
if (format == NULL)
return -EINVAL;
- csi2_try_format(csi2, fh, fmt->pad, &fmt->format, fmt->which);
+ csi2_try_format(csi2, cfg, fmt->pad, &fmt->format, fmt->which);
*format = fmt->format;
/* Propagate the format from sink to source */
if (fmt->pad == CSI2_PAD_SINK) {
- format = __csi2_get_format(csi2, fh, CSI2_PAD_SOURCE,
+ format = __csi2_get_format(csi2, cfg, CSI2_PAD_SOURCE,
fmt->which);
*format = fmt->format;
- csi2_try_format(csi2, fh, CSI2_PAD_SOURCE, format, fmt->which);
+ csi2_try_format(csi2, cfg, CSI2_PAD_SOURCE, format, fmt->which);
}
return 0;
@@ -1032,7 +1032,7 @@
format.format.code = MEDIA_BUS_FMT_SGRBG10_1X10;
format.format.width = 4096;
format.format.height = 4096;
- csi2_set_format(sd, fh, &format);
+ csi2_set_format(sd, fh ? fh->pad : NULL, &format);
return 0;
}