20 May, 2012
1 commit
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The DV Preset API will be phased out in favor of the more flexible DV Timings
API. Mark the preset API accordingly in the header and documentation.Signed-off-by: Hans Verkuil
Signed-off-by: Mauro Carvalho Chehab
19 May, 2012
1 commit
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These new ioctls make it possible for the dv_timings API to replace
the dv_preset API eventually.Signed-off-by: Hans Verkuil
Reviewed-by: Mauro Carvalho Chehab
Signed-off-by: Mauro Carvalho Chehab
15 May, 2012
10 commits
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Add following auto focus controls:
- V4L2_CID_AUTO_FOCUS_START - single-shot auto focus start
- V4L2_CID_AUTO_FOCUS_STOP - single-shot auto focus stop
- V4L2_CID_AUTO_FOCUS_STATUS - automatic focus status
- V4L2_CID_AUTO_FOCUS_RANGE - automatic focus scan range selectionSigned-off-by: Sylwester Nawrocki
Signed-off-by: Kyungmin Park
Signed-off-by: Mauro Carvalho Chehab -
The V4L2_CID_3A_LOCK bitmask control allows applications to pause
or resume the automatic exposure, focus and wite balance adjustments.
It can be used, for example, to lock the 3A adjustments right before
a still image is captured, for pre-focus, etc.
The applications can control each of the algorithms independently,
through a corresponding control bit, if driver allows that.Signed-off-by: Sylwester Nawrocki
Signed-off-by: Kyungmin Park
Signed-off-by: Mauro Carvalho Chehab -
Add control for the scene mode feature available in image sensor
with more advanced ISP firmware. The V4L2_CID_SCENE_MODE menu
control allows to select a set of parameters or a specific image
processing and capture control algorithm optimized for common
image capture conditions.Signed-off-by: HeungJun Kim
Signed-off-by: Sylwester Nawrocki
Signed-off-by: Kyungmin Park
Signed-off-by: Mauro Carvalho Chehab -
The V4L2_CID_EXPOSURE_METERING control allows to determine
a method used by the camera for measuring the amount of light
available for automatic exposure.Signed-off-by: Sylwester Nawrocki
Signed-off-by: Kyungmin Park
Signed-off-by: Mauro Carvalho Chehab -
Add ISO sensitivity and ISO auto/manual controls. The sensitivity
values are related to level of amplification of the analog signal
between image sensor and ADC. These controls allow to support sensors
exposing an interface to accept the ISO values directly.Signed-off-by: Sylwester Nawrocki
Signed-off-by: Kyungmin Park
Signed-off-by: Mauro Carvalho Chehab -
Add V4L2_CID_IMAGE_STABILIZATION control for the camera image
stabilization feature. This control can be used to enable/disable
image stabilization. It might get converted to a menu control
in future if more options are needed.Signed-off-by: HeungJun Kim
Signed-off-by: Sylwester Nawrocki
Signed-off-by: Kyungmin Park
Signed-off-by: Mauro Carvalho Chehab -
Add V4L2_CID_WIDE_DYNAMIC_RANGE camera class control for the
camera wide dynamic range (WDR, HDR) feature. This control
can be used to enable/disable wide dynamic range. It might
get converted to a menu control in future if more options
are needed.Signed-off-by: HeungJun Kim
Signed-off-by: Sylwester Nawrocki
Signed-off-by: Kyungmin Park
Signed-off-by: Mauro Carvalho Chehab -
This patch adds V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE control which is
an extended version of the V4L2_CID_AUTO_WHITE_BALANCE control,
including white balance presets. The following presets are defined:- V4L2_WHITE_BALANCE_INCANDESCENT,
- V4L2_WHITE_BALANCE_FLUORESCENT,
- V4L2_WHITE_BALANCE_FLUORESCENT_H,
- V4L2_WHITE_BALANCE_HORIZON,
- V4L2_WHITE_BALANCE_DAYLIGHT,
- V4L2_WHITE_BALANCE_FLASH,
- V4L2_WHITE_BALANCE_CLOUDY,
- V4L2_WHITE_BALANCE_SHADE.Signed-off-by: HeungJun Kim
Signed-off-by: Sylwester Nawrocki
Signed-off-by: Kyungmin Park
Acked-by: Hans de Goede
Signed-off-by: Mauro Carvalho Chehab -
The camera may in some conditions incorrectly determine the exposure,
and a manual automatic exposure correction may be needed. This patch
adds V4L2_CID_AUTO_EXPOSURE_BIAS control which allows to add some
offset in the automatic exposure control loop, to compensate for
frame under- or over-exposure.Signed-off-by: Sylwester Nawrocki
Signed-off-by: Kyungmin Park
Signed-off-by: Mauro Carvalho Chehab -
This patch adds definition of additional color effects:
- V4L2_COLORFX_AQUA,
- V4L2_COLORFX_ART_FREEZE,
- V4L2_COLORFX_SILHOUETTE,
- V4L2_COLORFX_SOLARIZATION,
- V4L2_COLORFX_ANTIQUE,
- V4L2_COLORFX_SET_CBCR.The new V4L2_COLORFX_CBCR control is added to allow setting
the fixed Cb, Cr values that replace chroma Cb/Cr coefficients
in case of V4L2_COLORFX_SET_CBCR effect.Signed-off-by: Sylwester Nawrocki
Signed-off-by: Kyungmin Park
Signed-off-by: Mauro Carvalho Chehab
14 May, 2012
4 commits
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Add three other colour orders for 10-bit to 8-bit DPCM compressed raw bayer
pixel formats.Signed-off-by: Sakari Ailus
Signed-off-by: Mauro Carvalho Chehab -
Add control class for image processing controls. The control class deals
with controls processing image, for example digital gain or noise filtering,
which can be present in any part of the pipeline.Signed-off-by: Sakari Ailus
Signed-off-by: Mauro Carvalho Chehab -
Add image source control class. This control class is intended to contain
low level controls which deal with control of the image capture process ---
the A/D converter in image sensors, for example.Signed-off-by: Sakari Ailus
Signed-off-by: Mauro Carvalho Chehab -
V4L2 uses the enum type in IOCTL arguments in IOCTLs that were defined until
the use of enum was considered less than ideal. Recently Rémi Denis-Courmont
brought up the issue by proposing a patch to convert the enums to unsigned:This sparked a long discussion where another solution to the issue was
proposed: two sets of IOCTL structures, one with __u32 and the other with
enums, and conversion code between the two:Both approaches implement a complete solution that resolves the problem. The
first one is simple but requires assuming enums and __u32 are the same in
size (so we won't break the ABI) while the second one is more complex and
less clean but does not require making that assumption.The issue boils down to whether enums are fundamentally different from __u32
or not, and can the former be substituted by the latter. During the
discussion it was concluded that the __u32 has the same size as enums on all
archs Linux is supported: it has not been shown that replacing those enums
in IOCTL arguments would break neither source or binary compatibility. If no
such reason is found, just replacing the enums with __u32s is the way to go.This is what this patch does. This patch is slightly different from Remi's
first RFC (link above): it uses __u32 instead of unsigned and also changes
the arguments of VIDIOC_G_PRIORITY and VIDIOC_S_PRIORITY.Signed-off-by: Rémi Denis-Courmont
Signed-off-by: Sakari Ailus
Acked-by: Hans Verkuil
Signed-off-by: Mauro Carvalho Chehab
19 Apr, 2012
1 commit
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Fixes a regression in VIDIOC_QUERYMENU introduced when the __s64 value
field was added to the union. On a 64-bit system this will change the
size of this v4l2_querymenu structure from 44 to 48 bytes, thus
breaking the ABI. By adding the packed attribute it is working again.Tested on both 64 and 32 bit systems.
Signed-off-by: Hans Verkuil
Acked-by: Sakari Ailus
Signed-off-by: Mauro Carvalho Chehab
11 Apr, 2012
1 commit
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Create a new control type called V4L2_CTRL_TYPE_INTEGER_MENU. Integer menu
controls are just like menu controls but the menu items are 64-bit integers
rather than strings.Signed-off-by: Sakari Ailus
Acked-by: Laurent Pinchart
Tested-by: Sylwester Nawrocki
Signed-off-by: Mauro Carvalho Chehab
20 Mar, 2012
1 commit
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Make the VIDIOC_G/S_SELECTION ioctls documentation more consistent
with the rest of media Docbook, use capital letters where necessary
and correct few minor errors.Signed-off-by: Sylwester Nawrocki
Signed-off-by: Kyungmin Park
Signed-off-by: Mauro Carvalho Chehab
29 Feb, 2012
1 commit
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The V4L2_CID_JPEG_CLASS control class is intended to expose various
adjustable parameters of JPEG encoders and decoders. Following controls
are defined:- V4L2_CID_JPEG_CHROMA_SUBSAMPLING,
- V4L2_CID_JPEG_RESTART_INTERVAL,
- V4L2_CID_JPEG_COMPRESSION_QUALITY,
- V4L2_CID_JPEG_ACTIVE_MARKER.This covers only a part of relevant standard specifications. More
controls should be added in future if required.The purpose of V4L2_CID_JPEG_CLASS class is also to replace some
functionality covered by VIDIOC_S/G_JPEGCOMP ioctls, i.e. the JPEG
markers presence and compression quality control. The applications
and drivers should switch from the ioctl to control based API, as
described in the subsequent patches for the Media API DocBook.Signed-off-by: Sylwester Nawrocki
Signed-off-by: Kyungmin Park
Signed-off-by: Mauro Carvalho Chehab
14 Feb, 2012
2 commits
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As discussed during the 2011 V4L-DVB workshop we want to create a proper V4L2
decoder API that replaces the DVBv5 API that has been used until now.This adds the four controls necessary to be able to switch ivtv over to this
new API.Signed-off-by: Hans Verkuil
Signed-off-by: Mauro Carvalho Chehab -
As discussed during the 2011 V4L-DVB workshop, the API in dvb/video.h should
be replaced by a proper V4L2 API. This patch turns the VIDEO_(TRY_)DECODER_CMD
ioctls into proper V4L2 ioctls.Signed-off-by: Hans Verkuil
Signed-off-by: Mauro Carvalho Chehab
24 Jan, 2012
1 commit
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If V4L2_CAP_DEVICE_CAPS is set, then the new device_caps field is filled with
the capabilities of the opened device node.The capabilities field traditionally contains the capabilities of the physical
device, being a superset of all capabilities available at the several device
nodes. E.g., if you open /dev/video0, then if it contains VBI caps then that means
that there is a corresponding vbi node as well. And the capabilities field of
both the video and vbi nodes should contain identical caps.However, it would be very useful to also have a capabilities field that contains
just the caps for the currently open device, hence the new CAP bit and field.Signed-off-by: Hans Verkuil
Signed-off-by: Mauro Carvalho Chehab
16 Jan, 2012
1 commit
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* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (655 commits)
[media] revert patch: HDIC HD29L2 DMB-TH USB2.0 reference design driver
mb86a20s: Add a few more register settings at the init seq
mb86a20s: Group registers into the same line
[media] [PATCH] don't reset the delivery system on DTV_CLEAR
[media] [BUG] it913x-fe fix typo error making SNR levels unstable
[media] cx23885: Query the CX25840 during enum_input for status
[media] cx25840: Add support for g_input_status
[media] rc-videomate-m1f.c Rename to match remote controler name
[media] drivers: media: au0828: Fix dependency for VIDEO_AU0828
[media] convert drivers/media/* to use module_platform_driver()
[media] drivers: video: cx231xx: Fix dependency for VIDEO_CX231XX_DVB
[media] Exynos4 JPEG codec v4l2 driver
[media] doc: v4l: selection: choose pixels as units for selection rectangles
[media] v4l: s5p-tv: mixer: fix setup of VP scaling
[media] v4l: s5p-tv: mixer: add support for selection API
[media] v4l: emulate old crop API using extended crop/compose API
[media] doc: v4l: add documentation for selection API
[media] doc: v4l: add binary images for selection API
[media] v4l: add support for selection api
[media] hd29l2: fix review findings
...
11 Jan, 2012
1 commit
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This patch introduces new api for a precise control of cropping and composing
features for video devices. The new ioctls are VIDIOC_S_SELECTION and
VIDIOC_G_SELECTION.Signed-off-by: Tomasz Stanislawski
Signed-off-by: Kyungmin Park
Signed-off-by: Mauro Carvalho Chehab
07 Jan, 2012
1 commit
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If ctrls->count is too high the multiplication could overflow and
array_size would be lower than expected. Mauro and Hans Verkuil
suggested that we cap it at 1024. That comes from the maximum
number of controls with lots of room for expantion.$ grep V4L2_CID include/linux/videodev2.h | wc -l
211Cc: stable
Signed-off-by: Dan Carpenter
Signed-off-by: Mauro Carvalho Chehab
06 Jan, 2012
1 commit
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Written by Theodore Kilgore
With minor changes by Hans de Goede:
-Code style fixes
-Correct the verbose level on various PDEBUG messages
-Make error messages use pr_err instead of PDEBUG
-Document the jl20 pixel formatSigned-off-by: Theodore Kilgore
Signed-off-by: Hans de Goede
Signed-off-by: Mauro Carvalho Chehab
31 Dec, 2011
1 commit
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The V4L2_CID_ALPHA_COMPONENT control is intended for the video capture
or memory-to-memory devices that are capable of setting up the per-pixel
alpha component to some arbitrary value. It allows to set the alpha
component for all pixels to an arbitrary value.Signed-off-by: Sylwester Nawrocki
Signed-off-by: Kyungmin Park
Acked-by: Laurent Pinchart
Signed-off-by: Mauro Carvalho Chehab
20 Dec, 2011
2 commits
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Flash controllers can report over-current and indicator fault
conditions. Define flash fault control bits for them.Signed-off-by: Laurent Pinchart
Acked-by: Andy Shevchenko
Acked-by: Sakari Ailus
Signed-off-by: Mauro Carvalho Chehab -
NV24 and NV42 are planar YCbCr 4:4:4 and YCrCb 4:4:4 formats with a
luma plane followed by an interleaved chroma plane.Signed-off-by: Laurent Pinchart
Acked-by: Mauro Carvalho Chehab
Signed-off-by: Florian Tobias Schandinat
04 Nov, 2011
3 commits
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V4L2_CID_POWER_LINE_FREQUENCY control allows applications to instruct
a driver what is the power line frequency so an appropriate filter
can be used by the device to cancel flicker by compensating the light
intensity ripple. Currently in the menu we have entries for 50 Hz and
60 Hz and for entirely disabling the anti-flicker filter.
However some devices are capable of automatically detecting the
frequency, so add V4L2_CID_POWER_LINE_FREQUENCY_AUTO entry for them.Signed-off-by: Sylwester Nawrocki
Signed-off-by: Kyungmin Park
Acked-by: Laurent Pinchart
Signed-off-by: Mauro Carvalho Chehab -
Signed-off-by: Guennadi Liakhovetski
Signed-off-by: Mauro Carvalho Chehab -
A possibility to preallocate and initialise buffers of different sizes
in V4L2 is required for an efficient implementation of a snapshot
mode. This patch adds two new ioctl()s: VIDIOC_CREATE_BUFS and
VIDIOC_PREPARE_BUF and defines respective data structures.Signed-off-by: Guennadi Liakhovetski
Signed-off-by: Mauro Carvalho Chehab
08 Oct, 2011
1 commit
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Reorganize the standards macro and add a few more, that will be
used on msp3400 in order to allow it to detect the audio standard.Signed-off-by: Mauro Carvalho Chehab
21 Sep, 2011
1 commit
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Add a new VOLATILE control flag that is set for volatile controls.
That way applications know whether the value of the control is volatile
(i.e. can change continuously) or not.Until now this was an internal property, but it is useful to know in
userspace as well.A typical use case is the gain value when autogain is on. In that case the
hardware will continuously adjust the gain based various environmental
factors.This patch just adds and documents the flag, it's not yet used.
Signed-off-by: Hans Verkuil
Acked-by: Hans de Goede
Signed-off-by: Mauro Carvalho Chehab
29 Aug, 2011
1 commit
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Define a frame sync event to tell user space when the reception of a frame
starts.Signed-off-by: Sakari Ailus
Acked-by: Laurent Pinchart
Signed-off-by: Mauro Carvalho Chehab
28 Jul, 2011
4 commits
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Add control definitions and documentation for controls
specific to codec devices.Signed-off-by: Kamil Debski
Signed-off-by: Kyungmin Park
Signed-off-by: Mauro Carvalho Chehab -
Add fourcc definitions and documentation for the following
compressed formats: H264, H264 without start codes,
MPEG1/2/4 ES, XVID, VC1 Annex G and Annex L compliant.Signed-off-by: Kamil Debski
Signed-off-by: Kyungmin Park
Signed-off-by: Mauro Carvalho Chehab -
Add a control class and a set of controls to support LED and Xenon flash
devices. An example of such a device is the adp1653.Signed-off-by: Sakari Ailus
Acked-by: Laurent Pinchart
Signed-off-by: Mauro Carvalho Chehab -
Signed-off-by: Hans Verkuil
Reviewed-by: Laurent Pinchart
Acked-by: Sakari Ailus
Signed-off-by: Mauro Carvalho Chehab
