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[media] v4l2-subdev: replace v4l2_subdev_fh by v4l2_subdev_pad_config

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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>
This commit is contained in:
Hans Verkuil
2015-03-04 01:47:54 -08:00
committed by Mauro Carvalho Chehab
parent 3d945be05a
commit f7234138f1
48 changed files with 813 additions and 797 deletions
Download Patch File Download Diff File Expand all files Collapse all files

78
drivers/media/platform/omap3isp/ispresizer.c
View File

@@ -112,16 +112,16 @@ static const struct isprsz_coef filter_coefs = {
* __resizer_get_format - helper function for getting resizer format
* @res : pointer to resizer private structure
* @pad : pad number
* @fh : V4L2 subdev file handle
* @cfg: V4L2 subdev pad configuration
* @which : wanted subdev format
* return zero
*/
static struct v4l2_mbus_framefmt *
__resizer_get_format(struct isp_res_device *res, struct v4l2_subdev_fh *fh,
__resizer_get_format(struct isp_res_device *res, 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(&res->subdev, cfg, pad);
else
return &res->formats[pad];
}
@@ -129,15 +129,15 @@ __resizer_get_format(struct isp_res_device *res, struct v4l2_subdev_fh *fh,
/*
* __resizer_get_crop - helper function for getting resizer crop rectangle
* @res : pointer to resizer private structure
* @fh : V4L2 subdev file handle
* @cfg: V4L2 subdev pad configuration
* @which : wanted subdev crop rectangle
*/
static struct v4l2_rect *
__resizer_get_crop(struct isp_res_device *res, struct v4l2_subdev_fh *fh,
__resizer_get_crop(struct isp_res_device *res, 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, RESZ_PAD_SINK);
return v4l2_subdev_get_try_crop(&res->subdev, cfg, RESZ_PAD_SINK);
else
return &res->crop.request;
}
@@ -1215,7 +1215,7 @@ static void resizer_try_crop(const struct v4l2_mbus_framefmt *sink,
/*
* resizer_get_selection - Retrieve a selection rectangle on a pad
* @sd: ISP resizer 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 sink pad.
@@ -1223,7 +1223,7 @@ static void resizer_try_crop(const struct v4l2_mbus_framefmt *sink,
* Return 0 on success or a negative error code otherwise.
*/
static int resizer_get_selection(struct v4l2_subdev *sd,
struct v4l2_subdev_fh *fh,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_selection *sel)
{
struct isp_res_device *res = v4l2_get_subdevdata(sd);
@@ -1234,9 +1234,9 @@ static int resizer_get_selection(struct v4l2_subdev *sd,
if (sel->pad != RESZ_PAD_SINK)
return -EINVAL;
format_sink = __resizer_get_format(res, fh, RESZ_PAD_SINK,
format_sink = __resizer_get_format(res, cfg, RESZ_PAD_SINK,
sel->which);
format_source = __resizer_get_format(res, fh, RESZ_PAD_SOURCE,
format_source = __resizer_get_format(res, cfg, RESZ_PAD_SOURCE,
sel->which);
switch (sel->target) {
@@ -1251,7 +1251,7 @@ static int resizer_get_selection(struct v4l2_subdev *sd,
break;
case V4L2_SEL_TGT_CROP:
sel->r = *__resizer_get_crop(res, fh, sel->which);
sel->r = *__resizer_get_crop(res, cfg, sel->which);
resizer_calc_ratios(res, &sel->r, format_source, &ratio);
break;
@@ -1265,7 +1265,7 @@ static int resizer_get_selection(struct v4l2_subdev *sd,
/*
* resizer_set_selection - Set a selection rectangle on a pad
* @sd: ISP resizer 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 sink pad.
@@ -1276,7 +1276,7 @@ static int resizer_get_selection(struct v4l2_subdev *sd,
* Return 0 on success or a negative error code otherwise.
*/
static int resizer_set_selection(struct v4l2_subdev *sd,
struct v4l2_subdev_fh *fh,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_selection *sel)
{
struct isp_res_device *res = v4l2_get_subdevdata(sd);
@@ -1290,9 +1290,9 @@ static int resizer_set_selection(struct v4l2_subdev *sd,
sel->pad != RESZ_PAD_SINK)
return -EINVAL;
format_sink = __resizer_get_format(res, fh, RESZ_PAD_SINK,
format_sink = __resizer_get_format(res, cfg, RESZ_PAD_SINK,
sel->which);
format_source = *__resizer_get_format(res, fh, RESZ_PAD_SOURCE,
format_source = *__resizer_get_format(res, cfg, RESZ_PAD_SOURCE,
sel->which);
dev_dbg(isp->dev, "%s(%s): req %ux%u -> (%d,%d)/%ux%u -> %ux%u\n",
@@ -1310,7 +1310,7 @@ static int resizer_set_selection(struct v4l2_subdev *sd,
* stored the mangled rectangle.
*/
resizer_try_crop(format_sink, &format_source, &sel->r);
*__resizer_get_crop(res, fh, sel->which) = sel->r;
*__resizer_get_crop(res, cfg, sel->which) = sel->r;
resizer_calc_ratios(res, &sel->r, &format_source, &ratio);
dev_dbg(isp->dev, "%s(%s): got %ux%u -> (%d,%d)/%ux%u -> %ux%u\n",
@@ -1320,7 +1320,7 @@ static int resizer_set_selection(struct v4l2_subdev *sd,
format_source.width, format_source.height);
if (sel->which == V4L2_SUBDEV_FORMAT_TRY) {
*__resizer_get_format(res, fh, RESZ_PAD_SOURCE, sel->which) =
*__resizer_get_format(res, cfg, RESZ_PAD_SOURCE, sel->which) =
format_source;
return 0;
}
@@ -1331,7 +1331,7 @@ static int resizer_set_selection(struct v4l2_subdev *sd,
*/
spin_lock_irqsave(&res->lock, flags);
*__resizer_get_format(res, fh, RESZ_PAD_SOURCE, sel->which) =
*__resizer_get_format(res, cfg, RESZ_PAD_SOURCE, sel->which) =
format_source;
res->ratio = ratio;
@@ -1368,13 +1368,13 @@ static unsigned int resizer_max_in_width(struct isp_res_device *res)
/*
* resizer_try_format - Handle try format by pad subdev method
* @res : ISP resizer device
* @fh : V4L2 subdev file handle
* @cfg: V4L2 subdev pad configuration
* @pad : pad num
* @fmt : pointer to v4l2 format structure
* @which : wanted subdev format
*/
static void resizer_try_format(struct isp_res_device *res,
struct v4l2_subdev_fh *fh, unsigned int pad,
struct v4l2_subdev_pad_config *cfg, unsigned int pad,
struct v4l2_mbus_framefmt *fmt,
enum v4l2_subdev_format_whence which)
{
@@ -1395,10 +1395,10 @@ static void resizer_try_format(struct isp_res_device *res,
break;
case RESZ_PAD_SOURCE:
format = __resizer_get_format(res, fh, RESZ_PAD_SINK, which);
format = __resizer_get_format(res, cfg, RESZ_PAD_SINK, which);
fmt->code = format->code;
crop = *__resizer_get_crop(res, fh, which);
crop = *__resizer_get_crop(res, cfg, which);
resizer_calc_ratios(res, &crop, fmt, &ratio);
break;
}
@@ -1410,12 +1410,12 @@ static void resizer_try_format(struct isp_res_device *res,
/*
* resizer_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 resizer_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_res_device *res = v4l2_get_subdevdata(sd);
@@ -1430,7 +1430,7 @@ static int resizer_enum_mbus_code(struct v4l2_subdev *sd,
if (code->index != 0)
return -EINVAL;
format = __resizer_get_format(res, fh, RESZ_PAD_SINK,
format = __resizer_get_format(res, cfg, RESZ_PAD_SINK,
V4L2_SUBDEV_FORMAT_TRY);
code->code = format->code;
}
@@ -1439,7 +1439,7 @@ static int resizer_enum_mbus_code(struct v4l2_subdev *sd,
}
static int resizer_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_res_device *res = v4l2_get_subdevdata(sd);
@@ -1451,7 +1451,7 @@ static int resizer_enum_frame_size(struct v4l2_subdev *sd,
format.code = fse->code;
format.width = 1;
format.height = 1;
resizer_try_format(res, fh, fse->pad, &format, V4L2_SUBDEV_FORMAT_TRY);
resizer_try_format(res, cfg, fse->pad, &format, V4L2_SUBDEV_FORMAT_TRY);
fse->min_width = format.width;
fse->min_height = format.height;
@@ -1461,7 +1461,7 @@ static int resizer_enum_frame_size(struct v4l2_subdev *sd,
format.code = fse->code;
format.width = -1;
format.height = -1;
resizer_try_format(res, fh, fse->pad, &format, V4L2_SUBDEV_FORMAT_TRY);
resizer_try_format(res, cfg, fse->pad, &format, V4L2_SUBDEV_FORMAT_TRY);
fse->max_width = format.width;
fse->max_height = format.height;
@@ -1471,17 +1471,17 @@ static int resizer_enum_frame_size(struct v4l2_subdev *sd,
/*
* resizer_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 resizer_get_format(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
static int resizer_get_format(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_format *fmt)
{
struct isp_res_device *res = v4l2_get_subdevdata(sd);
struct v4l2_mbus_framefmt *format;
format = __resizer_get_format(res, fh, fmt->pad, fmt->which);
format = __resizer_get_format(res, cfg, fmt->pad, fmt->which);
if (format == NULL)
return -EINVAL;
@@ -1492,37 +1492,37 @@ static int resizer_get_format(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
/*
* resizer_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 resizer_set_format(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
static int resizer_set_format(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_format *fmt)
{
struct isp_res_device *res = v4l2_get_subdevdata(sd);
struct v4l2_mbus_framefmt *format;
struct v4l2_rect *crop;
format = __resizer_get_format(res, fh, fmt->pad, fmt->which);
format = __resizer_get_format(res, cfg, fmt->pad, fmt->which);
if (format == NULL)
return -EINVAL;
resizer_try_format(res, fh, fmt->pad, &fmt->format, fmt->which);
resizer_try_format(res, cfg, fmt->pad, &fmt->format, fmt->which);
*format = fmt->format;
if (fmt->pad == RESZ_PAD_SINK) {
/* reset crop rectangle */
crop = __resizer_get_crop(res, fh, fmt->which);
crop = __resizer_get_crop(res, cfg, fmt->which);
crop->left = 0;
crop->top = 0;
crop->width = fmt->format.width;
crop->height = fmt->format.height;
/* Propagate the format from sink to source */
format = __resizer_get_format(res, fh, RESZ_PAD_SOURCE,
format = __resizer_get_format(res, cfg, RESZ_PAD_SOURCE,
fmt->which);
*format = fmt->format;
resizer_try_format(res, fh, RESZ_PAD_SOURCE, format,
resizer_try_format(res, cfg, RESZ_PAD_SOURCE, format,
fmt->which);
}
@@ -1573,7 +1573,7 @@ static int resizer_init_formats(struct v4l2_subdev *sd,
format.format.code = MEDIA_BUS_FMT_YUYV8_1X16;
format.format.width = 4096;
format.format.height = 4096;
resizer_set_format(sd, fh, &format);
resizer_set_format(sd, fh ? fh->pad : NULL, &format);
return 0;
}