diff options
author | Hans Verkuil <hans.verkuil@cisco.com> | 2015-03-04 01:47:54 -0800 |
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committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2015-03-23 11:41:36 -0700 |
commit | f7234138f14c2296c5eb6b8224abe00b507faf3f (patch) | |
tree | 947508529c06cf0c3ff36a71071725ffdb83e3b1 /drivers/staging/media/davinci_vpfe/dm365_ipipe.c | |
parent | 3d945be05ac1e806af075e9315bc1b3409adae2b (diff) | |
download | op-kernel-dev-f7234138f14c2296c5eb6b8224abe00b507faf3f.zip op-kernel-dev-f7234138f14c2296c5eb6b8224abe00b507faf3f.tar.gz |
[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/staging/media/davinci_vpfe/dm365_ipipe.c')
-rw-r--r-- | drivers/staging/media/davinci_vpfe/dm365_ipipe.c | 49 |
1 files changed, 24 insertions, 25 deletions
diff --git a/drivers/staging/media/davinci_vpfe/dm365_ipipe.c b/drivers/staging/media/davinci_vpfe/dm365_ipipe.c index a425f71..715f1e6 100644 --- a/drivers/staging/media/davinci_vpfe/dm365_ipipe.c +++ b/drivers/staging/media/davinci_vpfe/dm365_ipipe.c @@ -1414,17 +1414,17 @@ static int ipipe_set_stream(struct v4l2_subdev *sd, int enable) * __ipipe_get_format() - helper function for getting ipipe format * @ipipe: pointer to ipipe private structure. * @pad: pad number. - * @fh: V4L2 subdev file handle. + * @cfg: V4L2 subdev pad config * @which: wanted subdev format. * */ static struct v4l2_mbus_framefmt * __ipipe_get_format(struct vpfe_ipipe_device *ipipe, - struct v4l2_subdev_fh *fh, unsigned int pad, + 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(&ipipe->subdev, cfg, pad); return &ipipe->formats[pad]; } @@ -1432,14 +1432,14 @@ __ipipe_get_format(struct vpfe_ipipe_device *ipipe, /* * ipipe_try_format() - Handle try format by pad subdev method * @ipipe: VPFE ipipe device. - * @fh: V4L2 subdev file handle. + * @cfg: V4L2 subdev pad config * @pad: pad num. * @fmt: pointer to v4l2 format structure. * @which : wanted subdev format */ static void ipipe_try_format(struct vpfe_ipipe_device *ipipe, - 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) { @@ -1475,22 +1475,22 @@ ipipe_try_format(struct vpfe_ipipe_device *ipipe, /* * ipipe_set_format() - Handle set format by pads subdev method * @sd: pointer to v4l2 subdev structure - * @fh: V4L2 subdev file handle + * @cfg: V4L2 subdev pad config * @fmt: pointer to v4l2 subdev format structure * return -EINVAL or zero on success */ static int -ipipe_set_format(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh, +ipipe_set_format(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg, struct v4l2_subdev_format *fmt) { struct vpfe_ipipe_device *ipipe = v4l2_get_subdevdata(sd); struct v4l2_mbus_framefmt *format; - format = __ipipe_get_format(ipipe, fh, fmt->pad, fmt->which); + format = __ipipe_get_format(ipipe, cfg, fmt->pad, fmt->which); if (format == NULL) return -EINVAL; - ipipe_try_format(ipipe, fh, fmt->pad, &fmt->format, fmt->which); + ipipe_try_format(ipipe, cfg, fmt->pad, &fmt->format, fmt->which); *format = fmt->format; if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) @@ -1512,11 +1512,11 @@ ipipe_set_format(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh, /* * ipipe_get_format() - Handle get format by pads subdev method. * @sd: pointer to v4l2 subdev structure. - * @fh: V4L2 subdev file handle. + * @cfg: V4L2 subdev pad config * @fmt: pointer to v4l2 subdev format structure. */ static int -ipipe_get_format(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh, +ipipe_get_format(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg, struct v4l2_subdev_format *fmt) { struct vpfe_ipipe_device *ipipe = v4l2_get_subdevdata(sd); @@ -1524,7 +1524,7 @@ ipipe_get_format(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh, if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE) fmt->format = ipipe->formats[fmt->pad]; else - fmt->format = *(v4l2_subdev_get_try_format(fh, fmt->pad)); + fmt->format = *(v4l2_subdev_get_try_format(sd, cfg, fmt->pad)); return 0; } @@ -1532,11 +1532,11 @@ ipipe_get_format(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh, /* * ipipe_enum_frame_size() - enum frame sizes on pads * @sd: pointer to v4l2 subdev structure. - * @fh: V4L2 subdev file handle. + * @cfg: V4L2 subdev pad config * @fse: pointer to v4l2_subdev_frame_size_enum structure. */ static int -ipipe_enum_frame_size(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh, +ipipe_enum_frame_size(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg, struct v4l2_subdev_frame_size_enum *fse) { struct vpfe_ipipe_device *ipipe = v4l2_get_subdevdata(sd); @@ -1548,7 +1548,7 @@ ipipe_enum_frame_size(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh, format.code = fse->code; format.width = 1; format.height = 1; - ipipe_try_format(ipipe, fh, fse->pad, &format, + ipipe_try_format(ipipe, cfg, fse->pad, &format, V4L2_SUBDEV_FORMAT_TRY); fse->min_width = format.width; fse->min_height = format.height; @@ -1559,7 +1559,7 @@ ipipe_enum_frame_size(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh, format.code = fse->code; format.width = -1; format.height = -1; - ipipe_try_format(ipipe, fh, fse->pad, &format, + ipipe_try_format(ipipe, cfg, fse->pad, &format, V4L2_SUBDEV_FORMAT_TRY); fse->max_width = format.width; fse->max_height = format.height; @@ -1570,11 +1570,11 @@ ipipe_enum_frame_size(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh, /* * ipipe_enum_mbus_code() - enum mbus codes for pads * @sd: pointer to v4l2 subdev structure. - * @fh: V4L2 subdev file handle + * @cfg: V4L2 subdev pad config * @code: pointer to v4l2_subdev_mbus_code_enum structure */ static int -ipipe_enum_mbus_code(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh, +ipipe_enum_mbus_code(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg, struct v4l2_subdev_mbus_code_enum *code) { switch (code->pad) { @@ -1630,9 +1630,8 @@ static int ipipe_s_ctrl(struct v4l2_ctrl *ctrl) * @sd: pointer to v4l2 subdev structure. * @fh: V4L2 subdev file handle * - * Initialize all pad formats with default values. If fh is not NULL, try - * formats are initialized on the file handle. Otherwise active formats are - * initialized on the device. + * Initialize all pad formats with default values. Try formats are initialized + * on the file handle. */ static int ipipe_init_formats(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) @@ -1641,19 +1640,19 @@ ipipe_init_formats(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) memset(&format, 0, sizeof(format)); format.pad = IPIPE_PAD_SINK; - format.which = fh ? V4L2_SUBDEV_FORMAT_TRY : V4L2_SUBDEV_FORMAT_ACTIVE; + format.which = V4L2_SUBDEV_FORMAT_TRY; format.format.code = MEDIA_BUS_FMT_SGRBG12_1X12; format.format.width = IPIPE_MAX_OUTPUT_WIDTH_A; format.format.height = IPIPE_MAX_OUTPUT_HEIGHT_A; - ipipe_set_format(sd, fh, &format); + ipipe_set_format(sd, fh->pad, &format); memset(&format, 0, sizeof(format)); format.pad = IPIPE_PAD_SOURCE; - format.which = fh ? V4L2_SUBDEV_FORMAT_TRY : V4L2_SUBDEV_FORMAT_ACTIVE; + format.which = V4L2_SUBDEV_FORMAT_TRY; format.format.code = MEDIA_BUS_FMT_UYVY8_2X8; format.format.width = IPIPE_MAX_OUTPUT_WIDTH_A; format.format.height = IPIPE_MAX_OUTPUT_HEIGHT_A; - ipipe_set_format(sd, fh, &format); + ipipe_set_format(sd, fh->pad, &format); return 0; } |