diff options
author | Hans Verkuil <hans.verkuil@cisco.com> | 2015-03-04 09:47:54 (GMT) |
---|---|---|
committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2015-03-23 18:41:36 (GMT) |
commit | f7234138f14c2296c5eb6b8224abe00b507faf3f (patch) | |
tree | 947508529c06cf0c3ff36a71071725ffdb83e3b1 /drivers/media/i2c/mt9v032.c | |
parent | 3d945be05ac1e806af075e9315bc1b3409adae2b (diff) | |
download | linux-f7234138f14c2296c5eb6b8224abe00b507faf3f.tar.xz |
[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>
Diffstat (limited to 'drivers/media/i2c/mt9v032.c')
-rw-r--r-- | drivers/media/i2c/mt9v032.c | 36 |
1 files changed, 18 insertions, 18 deletions
diff --git a/drivers/media/i2c/mt9v032.c b/drivers/media/i2c/mt9v032.c index 3267c18..3793d31 100644 --- a/drivers/media/i2c/mt9v032.c +++ b/drivers/media/i2c/mt9v032.c @@ -371,12 +371,12 @@ static int __mt9v032_set_power(struct mt9v032 *mt9v032, bool on) */ static struct v4l2_mbus_framefmt * -__mt9v032_get_pad_format(struct mt9v032 *mt9v032, struct v4l2_subdev_fh *fh, +__mt9v032_get_pad_format(struct mt9v032 *mt9v032, struct v4l2_subdev_pad_config *cfg, unsigned int pad, enum v4l2_subdev_format_whence which) { switch (which) { case V4L2_SUBDEV_FORMAT_TRY: - return v4l2_subdev_get_try_format(fh, pad); + return v4l2_subdev_get_try_format(&mt9v032->subdev, cfg, pad); case V4L2_SUBDEV_FORMAT_ACTIVE: return &mt9v032->format; default: @@ -385,12 +385,12 @@ __mt9v032_get_pad_format(struct mt9v032 *mt9v032, struct v4l2_subdev_fh *fh, } static struct v4l2_rect * -__mt9v032_get_pad_crop(struct mt9v032 *mt9v032, struct v4l2_subdev_fh *fh, +__mt9v032_get_pad_crop(struct mt9v032 *mt9v032, struct v4l2_subdev_pad_config *cfg, unsigned int pad, enum v4l2_subdev_format_whence which) { switch (which) { case V4L2_SUBDEV_FORMAT_TRY: - return v4l2_subdev_get_try_crop(fh, pad); + return v4l2_subdev_get_try_crop(&mt9v032->subdev, cfg, pad); case V4L2_SUBDEV_FORMAT_ACTIVE: return &mt9v032->crop; default: @@ -448,7 +448,7 @@ static int mt9v032_s_stream(struct v4l2_subdev *subdev, int enable) } static int mt9v032_enum_mbus_code(struct v4l2_subdev *subdev, - struct v4l2_subdev_fh *fh, + struct v4l2_subdev_pad_config *cfg, struct v4l2_subdev_mbus_code_enum *code) { if (code->index > 0) @@ -459,7 +459,7 @@ static int mt9v032_enum_mbus_code(struct v4l2_subdev *subdev, } static int mt9v032_enum_frame_size(struct v4l2_subdev *subdev, - struct v4l2_subdev_fh *fh, + struct v4l2_subdev_pad_config *cfg, struct v4l2_subdev_frame_size_enum *fse) { if (fse->index >= 3 || fse->code != MEDIA_BUS_FMT_SGRBG10_1X10) @@ -474,12 +474,12 @@ static int mt9v032_enum_frame_size(struct v4l2_subdev *subdev, } static int mt9v032_get_format(struct v4l2_subdev *subdev, - struct v4l2_subdev_fh *fh, + struct v4l2_subdev_pad_config *cfg, struct v4l2_subdev_format *format) { struct mt9v032 *mt9v032 = to_mt9v032(subdev); - format->format = *__mt9v032_get_pad_format(mt9v032, fh, format->pad, + format->format = *__mt9v032_get_pad_format(mt9v032, cfg, format->pad, format->which); return 0; } @@ -509,7 +509,7 @@ static unsigned int mt9v032_calc_ratio(unsigned int input, unsigned int output) } static int mt9v032_set_format(struct v4l2_subdev *subdev, - struct v4l2_subdev_fh *fh, + struct v4l2_subdev_pad_config *cfg, struct v4l2_subdev_format *format) { struct mt9v032 *mt9v032 = to_mt9v032(subdev); @@ -520,7 +520,7 @@ static int mt9v032_set_format(struct v4l2_subdev *subdev, unsigned int hratio; unsigned int vratio; - __crop = __mt9v032_get_pad_crop(mt9v032, fh, format->pad, + __crop = __mt9v032_get_pad_crop(mt9v032, cfg, format->pad, format->which); /* Clamp the width and height to avoid dividing by zero. */ @@ -536,7 +536,7 @@ static int mt9v032_set_format(struct v4l2_subdev *subdev, hratio = mt9v032_calc_ratio(__crop->width, width); vratio = mt9v032_calc_ratio(__crop->height, height); - __format = __mt9v032_get_pad_format(mt9v032, fh, format->pad, + __format = __mt9v032_get_pad_format(mt9v032, cfg, format->pad, format->which); __format->width = __crop->width / hratio; __format->height = __crop->height / vratio; @@ -553,7 +553,7 @@ static int mt9v032_set_format(struct v4l2_subdev *subdev, } static int mt9v032_get_selection(struct v4l2_subdev *subdev, - struct v4l2_subdev_fh *fh, + struct v4l2_subdev_pad_config *cfg, struct v4l2_subdev_selection *sel) { struct mt9v032 *mt9v032 = to_mt9v032(subdev); @@ -561,12 +561,12 @@ static int mt9v032_get_selection(struct v4l2_subdev *subdev, if (sel->target != V4L2_SEL_TGT_CROP) return -EINVAL; - sel->r = *__mt9v032_get_pad_crop(mt9v032, fh, sel->pad, sel->which); + sel->r = *__mt9v032_get_pad_crop(mt9v032, cfg, sel->pad, sel->which); return 0; } static int mt9v032_set_selection(struct v4l2_subdev *subdev, - struct v4l2_subdev_fh *fh, + struct v4l2_subdev_pad_config *cfg, struct v4l2_subdev_selection *sel) { struct mt9v032 *mt9v032 = to_mt9v032(subdev); @@ -598,13 +598,13 @@ static int mt9v032_set_selection(struct v4l2_subdev *subdev, rect.height = min_t(unsigned int, rect.height, MT9V032_PIXEL_ARRAY_HEIGHT - rect.top); - __crop = __mt9v032_get_pad_crop(mt9v032, fh, sel->pad, sel->which); + __crop = __mt9v032_get_pad_crop(mt9v032, cfg, sel->pad, sel->which); if (rect.width != __crop->width || rect.height != __crop->height) { /* Reset the output image size if the crop rectangle size has * been modified. */ - __format = __mt9v032_get_pad_format(mt9v032, fh, sel->pad, + __format = __mt9v032_get_pad_format(mt9v032, cfg, sel->pad, sel->which); __format->width = rect.width; __format->height = rect.height; @@ -810,13 +810,13 @@ static int mt9v032_open(struct v4l2_subdev *subdev, struct v4l2_subdev_fh *fh) struct v4l2_mbus_framefmt *format; struct v4l2_rect *crop; - crop = v4l2_subdev_get_try_crop(fh, 0); + crop = v4l2_subdev_get_try_crop(subdev, fh->pad, 0); crop->left = MT9V032_COLUMN_START_DEF; crop->top = MT9V032_ROW_START_DEF; crop->width = MT9V032_WINDOW_WIDTH_DEF; crop->height = MT9V032_WINDOW_HEIGHT_DEF; - format = v4l2_subdev_get_try_format(fh, 0); + format = v4l2_subdev_get_try_format(subdev, fh->pad, 0); if (mt9v032->model->color) format->code = MEDIA_BUS_FMT_SGRBG10_1X10; |