- 11 1月, 2016 5 次提交
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由 Mauro Carvalho Chehab 提交于
Rename the userspace types from MEDIA_ENT_T_ to MEDIA_ENT_F_ and add the backward compatibility bits. The changes at the .c files was generated by the following coccinelle script: @@ @@ -MEDIA_ENT_T_UNKNOWN +MEDIA_ENT_F_UNKNOWN @@ @@ -MEDIA_ENT_T_DVB_BASE +MEDIA_ENT_F_DVB_BASE @@ @@ -MEDIA_ENT_T_V4L2_BASE +MEDIA_ENT_F_V4L2_BASE @@ @@ -MEDIA_ENT_T_V4L2_SUBDEV_BASE +MEDIA_ENT_F_V4L2_SUBDEV_BASE @@ @@ -MEDIA_ENT_T_CONNECTOR_BASE +MEDIA_ENT_F_CONNECTOR_BASE @@ @@ -MEDIA_ENT_T_V4L2_VIDEO +MEDIA_ENT_F_IO_V4L @@ @@ -MEDIA_ENT_T_V4L2_VBI +MEDIA_ENT_F_IO_VBI @@ @@ -MEDIA_ENT_T_V4L2_SWRADIO +MEDIA_ENT_F_IO_SWRADIO @@ @@ -MEDIA_ENT_T_V4L2_SUBDEV_UNKNOWN +MEDIA_ENT_F_V4L2_SUBDEV_UNKNOWN @@ @@ -MEDIA_ENT_T_CONN_RF +MEDIA_ENT_F_CONN_RF @@ @@ -MEDIA_ENT_T_CONN_SVIDEO +MEDIA_ENT_F_CONN_SVIDEO @@ @@ -MEDIA_ENT_T_CONN_COMPOSITE +MEDIA_ENT_F_CONN_COMPOSITE @@ @@ -MEDIA_ENT_T_CONN_TEST +MEDIA_ENT_F_CONN_TEST @@ @@ -MEDIA_ENT_T_V4L2_SUBDEV_SENSOR +MEDIA_ENT_F_CAM_SENSOR @@ @@ -MEDIA_ENT_T_V4L2_SUBDEV_FLASH +MEDIA_ENT_F_FLASH @@ @@ -MEDIA_ENT_T_V4L2_SUBDEV_LENS +MEDIA_ENT_F_LENS @@ @@ -MEDIA_ENT_T_V4L2_SUBDEV_DECODER +MEDIA_ENT_F_ATV_DECODER @@ @@ -MEDIA_ENT_T_V4L2_SUBDEV_TUNER +MEDIA_ENT_F_TUNER @@ @@ -MEDIA_ENT_T_DVB_DEMOD +MEDIA_ENT_F_DTV_DEMOD @@ @@ -MEDIA_ENT_T_DVB_DEMUX +MEDIA_ENT_F_TS_DEMUX @@ @@ -MEDIA_ENT_T_DVB_TSOUT +MEDIA_ENT_F_IO_DTV @@ @@ -MEDIA_ENT_T_DVB_CA +MEDIA_ENT_F_DTV_CA @@ @@ -MEDIA_ENT_T_DVB_NET_DECAP +MEDIA_ENT_F_DTV_NET_DECAP Signed-off-by: NMauro Carvalho Chehab <mchehab@osg.samsung.com> -
由 Mauro Carvalho Chehab 提交于
Entities should have one or more functions. Calling it as a type proofed to not be correct, as an entity could eventually have more than one type. So, rename the field as function. Please notice that this patch doesn't extend support for multiple function entities. Such change will happen when we have real case drivers using it. No functional changes. Acked-by: NHans Verkuil <hans.verkuil@cisco.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@osg.samsung.com>
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由 Mauro Carvalho Chehab 提交于
Instead of abusing MEDIA_ENT_T_V4L2_SUBDEV, initialize new subdev entities as MEDIA_ENT_T_UNKNOWN. Acked-by: NHans Verkuil <hans.verkuil@cisco.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@osg.samsung.com>
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由 Mauro Carvalho Chehab 提交于
Instead of relying on media subtype, use the new macros to detect if an entity is a subdev or an A/V DMA entity. Please note that most drivers assume that there's just AV_DMA or V4L2 subdevs. This is not true anymore, as we've added MC support for DVB, and there are plans to add support for ALSA and FB/DRM too. Ok, on the current pipelines supported by those drivers, just V4L stuff are there, but, assuming that some day a pipeline that also works with other subsystems will ever added, it is better to add explicit checks for the AV_DMA stuff. Acked-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@osg.samsung.com>
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由 Mauro Carvalho Chehab 提交于
Now that interfaces and entities are distinct, it makes no sense of keeping something named as MEDIA_ENT_T_DEVNODE. This change was done with this script: for i in $(git grep -l MEDIA_ENT_T|grep -v uapi/linux/media.h); do sed s,MEDIA_ENT_T_DEVNODE_V4L,MEDIA_ENT_T_V4L2_VIDEO, <$i >a && mv a $i; done Acked-by: NHans Verkuil <hans.verkuil@cisco.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@osg.samsung.com>
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- 17 7月, 2015 1 次提交
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由 Lars-Peter Clausen 提交于
Add a new helper function called v4l2_subdev_notify_event() which will deliver the specified event to both the v4l2 subdev event queue as well as to the notify callback. The former is typically used by userspace applications to listen to notification events while the later is used by bridge drivers. Combining both into the same function avoids boilerplate code in subdev drivers. Signed-off-by: NLars-Peter Clausen <lars@metafoo.de> Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@osg.samsung.com>
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- 08 4月, 2015 1 次提交
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由 Markus Elfring 提交于
The media_entity_put() function tests whether its argument is NULL and then returns immediately. Thus the test around the call is not needed. This issue was detected by using the Coccinelle software. Signed-off-by: NMarkus Elfring <elfring@users.sourceforge.net> Signed-off-by: NMauro Carvalho Chehab <mchehab@osg.samsung.com>
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- 24 3月, 2015 2 次提交
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由 Hans Verkuil 提交于
Return an error if an invalid 'which' valid is passed in. Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com> Acked-by: NLad, Prabhakar <prabhakar.csengg@gmail.com> Tested-by: NLad, Prabhakar <prabhakar.csengg@gmail.com> Acked-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: NSylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@osg.samsung.com>
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由 Hans Verkuil 提交于
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: NHans Verkuil <hans.verkuil@cisco.com> Acked-by: NLad, Prabhakar <prabhakar.csengg@gmail.com> Tested-by: NLad, Prabhakar <prabhakar.csengg@gmail.com> Acked-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: NSakari Ailus <sakari.ailus@linux.intel.com> Acked-by: NSylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@osg.samsung.com>
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- 23 12月, 2014 1 次提交
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由 Hans Verkuil 提交于
Drop the duplicate get/set_crop pad ops and only use get/set_selection. It makes no sense to have two duplicate ops in the internal subdev API. Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com> Acked-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@osg.samsung.com>
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- 22 8月, 2014 1 次提交
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由 Laurent Pinchart 提交于
The field order must match between the source and sink pads, or the sink pad field order must be NONE. This allows connecting an interlaced source to a bridge that has no hardware support for interlaced formats. Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com> Tested-by: NEnrico Butera <ebutera@users.sourceforge.net> Acked-by: NSakari Ailus <sakari.ailus@iki.fi> Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
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- 22 7月, 2014 2 次提交
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由 Mauro Carvalho Chehab 提交于
As reported by Kbuildtest: drivers/media/v4l2-core/v4l2-subdev.c: In function 'check_format': drivers/media/v4l2-core/v4l2-subdev.c:136:23: error: 'struct v4l2_subdev' has no member named 'entity' if (format->pad >= sd->entity.num_pads) ^ drivers/media/v4l2-core/v4l2-subdev.c: In function 'check_crop': drivers/media/v4l2-core/v4l2-subdev.c:148:21: error: 'struct v4l2_subdev' has no member named 'entity' if (crop->pad >= sd->entity.num_pads) ^ drivers/media/v4l2-core/v4l2-subdev.c: In function 'check_selection': drivers/media/v4l2-core/v4l2-subdev.c:161:20: error: 'struct v4l2_subdev' has no member named 'entity' if (sel->pad >= sd->entity.num_pads) ^ drivers/media/v4l2-core/v4l2-subdev.c: In function 'check_edid': drivers/media/v4l2-core/v4l2-subdev.c:169:21: error: 'struct v4l2_subdev' has no member named 'entity' if (edid->pad >= sd->entity.num_pads) ^ drivers/media/v4l2-core/v4l2-subdev.c: In function 'subdev_do_ioctl': >> drivers/media/v4l2-core/v4l2-subdev.c:186:6: warning: unused variable 'rval' [-Wunused-variable] int rval; ^ drivers/media/v4l2-core/v4l2-subdev.c: At top level: drivers/media/v4l2-core/v4l2-subdev.c:129:12: warning: 'check_format' defined but not used [-Wunused-function] static int check_format(struct v4l2_subdev *sd, ^ drivers/media/v4l2-core/v4l2-subdev.c:142:12: warning: 'check_crop' defined but not used [-Wunused-function] static int check_crop(struct v4l2_subdev *sd, struct v4l2_subdev_crop *crop) ^ drivers/media/v4l2-core/v4l2-subdev.c:154:12: warning: 'check_selection' defined but not used [-Wunused-function] static int check_selection(struct v4l2_subdev *sd, ^ drivers/media/v4l2-core/v4l2-subdev.c:167:12: warning: 'check_edid' defined but not used [-Wunused-function] static int check_edid(struct v4l2_subdev *sd, struct v4l2_subdev_edid *edid) The above warnins happen because those functions are used only when the V4L2 subdev API is enabled. Reported-by: Nkbuild test robot <fengguang.wu@intel.com> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com> -
由 Sakari Ailus 提交于
Separate validation of different argument types. There's no reason to do this separately for every IOCTL. Signed-off-by: NSakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
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- 17 7月, 2014 1 次提交
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由 Hans Verkuil 提交于
Add the v4l2 core plumbing for the new VIDIOC_QUERY_EXT_CTRL ioctl. Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com> Reviewed-by: NSylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
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- 25 5月, 2014 2 次提交
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由 Laurent Pinchart 提交于
The subdev EDID ioctls receive a pad field that must reference an existing pad and an EDID field that must point to a buffer. Validate both fields in the core code instead of duplicating validation in all drivers. Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: NSakari Ailus <sakari.ailus@linux.intel.com> Reviewed-by: NHans Verkuil <hans.verkuil@cisco.com> Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
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由 Laurent Pinchart 提交于
Validate the pad field in the core code whenever specified. Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: NHans Verkuil <hans.verkuil@cisco.com> Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
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- 14 5月, 2014 1 次提交
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由 Sakari Ailus 提交于
VIDIOC_SUBDEV_[GS]_FRAME_INTERVAL IOCTLs argument structs contain the pad field but the validity check was missing. There should be no implications security-wise from this since no driver currently uses the pad field in the struct. Signed-off-by: NSakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
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- 11 3月, 2014 1 次提交
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由 Hans Verkuil 提交于
Support this ioctl as part of the v4l2 core. Use the new ioctl name and struct v4l2_edid type in the existing core code. Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com> Acked-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
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- 24 2月, 2014 1 次提交
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由 Hans Verkuil 提交于
Add support for 32-bit ioctls with v4l-subdev device nodes. Rather than keep adding new ioctls to the list in v4l2-compat-ioctl32.c, just check if the ioctl is a non-private V4L2 ioctl and if so, call the conversion code. We keep forgetting to add new ioctls, so this is a more robust solution. In addition extend the subdev API with support for a compat32 function to convert custom v4l-subdev ioctls. Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com> Tested-by: NSakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
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- 22 11月, 2012 1 次提交
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由 Laurent Pinchart 提交于
v4l2_subdev_link_validate_get_format() retrieves the remote pad format depending on the entity type and prints a warning if the entity type is not supported. The type check doesn't take the subtype into account, and thus always prints a warning for device node types, even when supported. Fix it. Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: NSakari Ailus <sakari.ailus@iki.fi> Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
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- 14 9月, 2012 1 次提交
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由 Hans Verkuil 提交于
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
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- 14 8月, 2012 1 次提交
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由 Mauro Carvalho Chehab 提交于
Currently, the v4l2 core is mixed together with other non-core drivers. Move them into a separate directory. Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
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- 07 7月, 2012 2 次提交
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由 Sakari Ailus 提交于
Change the users of V4L2_SUBDEV_SEL_TGT_* targets to use V4L2_SEL_TGT_* instead. The common definitions are moved to a new header file, include/linux/v4l2-common.h. Signed-off-by: NSakari Ailus <sakari.ailus@iki.fi> Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com> Acked-by: NSylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
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由 Sakari Ailus 提交于
The string "_ACTUAL" does not say anything more about the target names. Drop it. V4L2 selection API was changed by "V4L: Remove "_ACTIVE" from the selection target name definitions" by Sylwester Nawrocki. This patch does the same for the V4L2 subdev API. Signed-off-by: NSakari Ailus <sakari.ailus@iki.fi> Acked-by: NSylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
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- 14 5月, 2012 1 次提交
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由 Sakari Ailus 提交于
v4l2_subdev_link_validate() is the default op for validating a link. In V4L2 subdev context, it is used to call a pad op which performs the proper link check without much extra work. Signed-off-by: NSakari Ailus <sakari.ailus@iki.fi> Acked-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
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- 11 4月, 2012 2 次提交
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由 Sakari Ailus 提交于
Fall back to s_selection if s_crop isn't implemented by a driver. Same for g_selection / g_crop. Signed-off-by: NSakari Ailus <sakari.ailus@iki.fi> Acked-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
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由 Sakari Ailus 提交于
Add support for VIDIOC_SUBDEV_S_SELECTION and VIDIOC_SUBDEV_G_SELECTION IOCTLs. They replace functionality provided by VIDIOC_SUBDEV_S_CROP and VIDIOC_SUBDEV_G_CROP IOCTLs and also add new functionality (composing). VIDIOC_SUBDEV_G_CROP and VIDIOC_SUBDEV_S_CROP continue to be supported. Signed-off-by: NSakari Ailus <sakari.ailus@iki.fi> Acked-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
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- 15 2月, 2012 1 次提交
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由 Hans Verkuil 提交于
Add the start and end messages for log_status when called from a subdev device node. Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
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- 06 1月, 2012 1 次提交
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由 Sylwester Nawrocki 提交于
The VIDIOC_LOG_STATUS ioctl allows to dump the current status of a driver to the kernel log. Currently this ioctl is only available at video device nodes and the subdevs rely on the host driver to expose their core.log_status operation to user space. This patch adds VIDIOC_LOG_STATUS support at the sub-device nodes, for standalone subdevs that expose their own /dev entry. Acked-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
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- 01 11月, 2011 1 次提交
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由 Paul Gortmaker 提交于
These two macros were in module.h but now module.h is no longer sprayed across every source file imaginable, so the users need to expicitly call out their use of them. Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com>
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- 24 9月, 2011 1 次提交
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由 Martin Hostettler 提交于
Ioctls on the subdevs node currently don't dispatch the register access debug driver callbacks. Add the dispatching with the same security checks are for non subdev video nodes (i.e. only capable(CAP_SYS_ADMIN may call the register access ioctls). Signed-off-by: NMartin Hostettler <martin@neutronstar.dyndns.org> Acked-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
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- 28 7月, 2011 4 次提交
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由 Hans Verkuil 提交于
The driver had to decide how many events to allocate when the v4l2_fh struct was created. It was possible to add more events afterwards, but there was no way to ensure that you wouldn't miss important events if the event queue would fill up for that filehandle. In addition, once there were no more free events, any new events were simply dropped on the floor. For the control event in particular this made life very difficult since control status/value changes could just be missed if the number of allocated events and the speed at which the application read events was too low to keep up with the number of generated events. The application would have no idea what the latest state was for a control since it could have missed the latest control change. So this patch makes some major changes in how events are allocated. Instead of allocating events per-filehandle they are now allocated when subscribing an event. So for that particular event type N events (determined by the driver) are allocated. Those events are reserved for that particular event type. This ensures that you will not miss events for a particular type altogether. In addition, if there are N events in use and a new event is raised, then the oldest event is dropped and the new one is added. So the latest event is always available. This can be further improved by adding the ability to merge the state of two events together, ensuring that no data is lost at all. This will be added in the next patch. This also makes it possible to allow the user to determine the number of events that will be allocated. This is not implemented at the moment, but would be trivial. Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
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由 Hans Verkuil 提交于
Drivers that supported events used to be rare, but now that controls can also raise events this will become much more common since almost all drivers have controls. This means that keeping struct v4l2_events as a separate struct make no more sense. Merging it into struct v4l2_fh simplifies things substantially as it is now an integral part of the filehandle struct. Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
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由 Hans Verkuil 提交于
When an application changes a control you want to generate an event. However, you want to avoid sending such an event back to the application (file handle) that caused the change. Add the filehandle to the various set control functions. The filehandle isn't used yet, but the control event patches will need this. Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
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由 Hans Verkuil 提交于
To be consistent with v4l2-ioctl.c. Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
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- 05 5月, 2011 1 次提交
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由 Hans Verkuil 提交于
The v4l2_subdev_* functions are meant for older V4L2 drivers that do not use the control framework yet. These functions should not be used by subdev_do_ioctl. Most of those backwards compatibility functions are just stubs, but commit 87a0c94c actually changed the behavior of v4l2_subdev_queryctrl, so calling that one from subdev_do_ioctl broke the control enumeration in subdev nodes. The fix is simply not to use those compatibility functions in v4l2-subdev.c. Signed-off-by: NHans Verkuil <hverkuil@xs4all.nl> Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
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- 22 3月, 2011 4 次提交
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由 Laurent Pinchart 提交于
Instead of returning an error when receiving an ioctl call with an unsupported command, forward the call to the subdev core::ioctl handler. Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: NHans Verkuil <hverkuil@xs4all.nl> Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
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由 Antti Koskipaa 提交于
This patch adds the VIDIOC_SUBDEV_S_CROP and G_CROP ioctls to the userland API. CROPCAP is not implemented because it's redundant. Signed-off-by: NAntti Koskipaa <akoskipa@gmail.com> Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: NHans Verkuil <hverkuil@xs4all.nl> Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
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由 Laurent Pinchart 提交于
The three new ioctl VIDIOC_SUBDEV_ENUM_FRAME_INTERVAL, VIDIOC_SUBDEV_G_FRAME_INTERVAL and VIDIOC_SUBDEV_S_FRAME_INTERVAL can be used to enumerate and configure a subdev's frame rate from userspace. Two new video::g/s_frame_interval subdev operations are introduced to support those ioctls. The existing video::g/s_parm operations are deprecated and shouldn't be used anymore. Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: NSakari Ailus <sakari.ailus@iki.fi> Acked-by: NHans Verkuil <hverkuil@xs4all.nl> Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
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由 Laurent Pinchart 提交于
Add a userspace API to get, set and enumerate the media format on a subdev pad. The format at the output of a subdev usually depends on the format at its input(s). The try format operation is thus not suitable for probing format at individual pads, as it can't modify the device state and thus can't remember the format tried at the input to compute the output format. To fix the problem, pass an extra argument to the get/set format operations to select the 'try' or 'active' format. The try format is used when probing the subdev. Setting the try format must not change the device configuration but can store data for later reuse. Data storage is provided at the file-handle level so applications probing the subdev concurently won't interfere with each other. The active format is used when configuring the subdev. It's identical to the format handled by the usual get/set operations. Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: NStanimir Varbanov <svarbanov@mm-sol.com> Signed-off-by: NSakari Ailus <sakari.ailus@iki.fi> Acked-by: NHans Verkuil <hverkuil@xs4all.nl> Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
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