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This is a partial revert of commit 395d43d6d75b ("libcamera:
v4l2_videodevice: Drop toV4L2PixelFormat()")
The function was removed because it incorrectly maps non-contiguous V4L2
format variants (ie V4L2_PIX_FMT_YUV420M) to the API version supported
by the video device (singleplanar API and multiplanar API). It was
decided at the time to remove the function and let its users call
directly V4L2PixelFormat::fromPixelFormat() which accepts a
'multiplanar' flags.
As we aim to associate multiple V4L2PixelFormat to a single libcamera
format, the next patches will verify which of them is actually supported
by the video device. For now, return the contiguous version
unconditionally.
Re-introduce V4L2VideoDevice::toV4L2PixelFormat() and convert all
the V4L2PixelFormat::fromPixelFormat() users to use it.
The V4L2 compatibility layer is the only outlier as it doesn't have a
video device to poke, hence it still uses
V4L2PixelFormat::fromPixelFormat().
Next patches will implement the device format matching logic and handle
the non-contiguous plane issue in V4L2VideoDevice::toV4L2PixelFormat().
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Paul Elder <paul.elder@ideasonboard.com>
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To each libcamera PixelFormat two V4L2 formats are associated, the
'single' and 'multi' format variants.
The two versions list plane contiguous and non-contiguous format
variants, and an optional argument to V4L2PixelFormat::fromPixelFormat()
was used to select which one to pick.
In order to prepare to remove V4L2PixelFormat::fromPixelFormat(), and
considering that no caller in the codebase uses the non-contiguous
format variant, merge the two formats vectors in a single one and
default the selection to the first available one, which is functionally
equivalent to what is currently implemented.
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Paul Elder <paul.elder@ideasonboard.com>
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Usage of the std::enable_if_t type doesn't need to be prefixed by
typename. Drop the unnecessary keyword.
Reported-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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Allow to retrieve a YAML list of any already supported types in a
std::vector.
Signed-off-by: Florian Sylvestre <fsylvestre@baylibre.com>
Tested-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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The std::map container used to store dictionary items in YamlObject
doesn't preserve the YAML data order, as maps are ordered by key, not by
insertion order. While this is compliant with the YAML specification
which doesn't guarantee ordering of mappings, the Raspberry Pi IPA
relies on elements being ordered as in the YAML data. To replace the
dependency on boost with the YamlParser class, we thus need to guarantee
that the order is preserved.
Preserve the order by storing items in list_ unconditionally. Turn the
list_ vector from storing YamlObject unique pointers to storing
key-value pairs, with the key being absent when the object is a list,
not a dictionary.
The YamlObject implementation is updated to preserve the existing API,
with the only difference being that YamlObject::memberNames() now
returns member names in the same order as in the YAML file.
The ordering is an implementation detail, so changing it doesn't violate
the YAML specification. The documentation is not updated to reflect
this, as we don't want any new user to rely on a particular ordering.
This commit could be reverted if desired when the Raspberry Pi IPA
updates to a new tuning data format and drops support for the old
format.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
Tested-by: Naushir Patuck <naush@raspberrypi.com>
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The YamlObject::get() function takes a default value and an optional
bool ok flag to handle parsing errors. This ad-hoc mechanism complicates
error handling in callers.
A better API is possible by dropping the default value and ok flag and
returning an std::optional. Not only does it simplify the calls, it also
lets callers handle errors through the standard std::optional class
instead of the current ad-hoc mechanism.
Provide a get() wrapper around std::optional::value_or() to further
simplify callers that don't need any specific error handling.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
Tested-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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s/Raspberry Pi (Trading) Limited/Raspberry Pi Ltd/ to reflect the new
Raspberry Pi entity name.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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The doxygen '\todo' directory doesn't need to be followed by a colon,
yet a few strayed occurrences have made their way in. Fix them.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
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The DelayedControls implementation tracked the sequence numbers to
determine the offset if a device did not commence with a sequence number
of 0.
This guarantee is now handled by the V4L2VideoDevice.
Remove the firstSequence_ offset and the corresponding running_ flag
which was used to track setting firstSequence_ from the DelayedControls.
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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V4L2 Video devices should always start streaming from index zero.
Identify and report a warning if they don't, and correct for any offset.
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Extend the YamlObject::get() function template to support 16-bit
integers.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Han-Lin Chen <hanlinchen@chromium.org>
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Now that YamlObject supports iteration, the memberNames() function isn't
useful anymore as it can be implemented using utils::map_keys() if
really needed. Drop it.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Han-Lin Chen <hanlinchen@chromium.org>
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Allow using range-based for loops over YamlObject instances by
implementing iterators. New YamlObject::DictAdapter and
YamlObject::ListAdapter adapter classes are introduced to provide
different iterators depending on the object type.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Han-Lin Chen <hanlinchen@chromium.org>
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As the YamlObject class is internal to libcamera, it can use the full
C++17 API. Replace std::is_same<>::value with std::is_same_v<>.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Han-Lin Chen <hanlinchen@chromium.org>
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THe FILE object isn't very user-friendly as it requires manual close.
Replace it with File to provide RAII-style resource management in the
YamlParser API.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
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Dictionaries have a size too, extend the size() function to support
them.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
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Turn the Type enum into an enum class to force qualifying 'List' and
'Dictionary' in the YamlObject namespace scope. This will help avoiding
ambiguities when adding iterator support.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
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With the recent addition of operator<<() in most libcamera core classes
to replace usage of the toString() function the Request class was left
behind.
Add operator<<() for the Request class and reimplement toString().
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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The MediaDevice::driver(), deviceNode() and model() functions return a
const std::string, copying the string stored internally in the class.
Return references instead to avoid copies.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
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Introduce YamlParser as a helper to convert contents of a yaml file to
a tree based structure for easier reading, and to avoid writing parser
with raw yaml tokens. The class is based on libyaml, and only support
reading but not writing a yaml file.
The interface is inspired by Json::Value class from jsoncpp:
http://jsoncpp.sourceforge.net/class_json_1_1_value.html
Signed-off-by: Han-Lin Chen <hanlinchen@chromium.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Implement the stream output operator<<() for the V4L2DeviceFormat and
V4L2SubdeviceFormat classes to simplify printing them.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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Implement the stream output operator<<() for the BayerFormat class to
simplify printing them.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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Implement the stream output operator<<() for the PixelFormat and
V4L2PixelFormat classes to simplify printing them.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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FrameBuffer::cancel() is not meant to be used by applications. Move it
to the FrameBuffer::Private class.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Dorota Czaplejewicz <dorota.czaplejewicz@puri.sm>
[Kieran: Handle rebase]
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The sizes() function returns a value, not a reference. There's no need
for it to be const.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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Add a timer that gets reset on every buffer dequeue event. If the timeout
expires, optionally call a slot in the pipeline handler to handle this
condition. This may be useful in detecting and handling stalls in either the
hardware or device driver.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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When streamOff() is called, ensure the cache entries for the remaining queued
buffers are freed since this will not happen via the dequeueBuffer() mechanism.
Additionally, add a V4L2BufferCache::isEmpty() function and assert that the
cache is empty at the end of the streamOff() call.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Tested-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Replace the existing streaming_ state variable with an enum to track the
following three state: Streaming, Stopping, and Stopped. The alternate states
will be used in a subsequent commit.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Add a function to the CameraLens class to fetch the V4L2 controls
for its V4L2 subdev
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Scally <djrscally@gmail.com>
Reviewed-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Add a function to check for and initialise any VCMs linked to the
CameraSensor's entity by ancillary links. This should initialise
the lens_ member with the linked entity. Call the new function
during CameraSensor::init().
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Scally <djrscally@gmail.com>
Reviewed-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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With kernel support for ancillary links, we can describe the
relationship between two devices represented individually as instances
of MediaEntity. As the only property of that relationship is its
existence, describe those relationships in libcamera simply as a
vector of MediaEntity pointers to the ancillary devices.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Scally <djrscally@gmail.com>
Reviewed-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The CameraLens class implements a function named "setFocusPostion".
There is a typo here, fix it.
Signed-off-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Provide a call allowing requests to be registered and associated with
the pipeline handler after being constructed by the camera.
This provides an opportunity for the PipelineHandler to connect any
signals it may be interested in receiving for the request such as
getting notifications when the request is ready for processing when
using a fence.
While here, update the existing usage of the d pointer in
Camera::createRequest() to match the style of other functions.
Bug: https://github.com/raspberrypi/libcamera-apps/issues/217
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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The PipelineHandler lock() and unlock() functions are documented as
thread-safe, but they're not. Fix them using a mutex.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
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The MediaDevice lock is meant to prevent concurrent usage of multiple
cameras from the same pipeline handlers. As media devices are acquired
by pipeline handlers, we can't have multiple pipeline handlers trying to
lock the same media device. The recursive locking detection can thus be
moved to the pipeline handler. This simplifies the media device
implementation that now implements true lock semantics, and prepares for
support of concurrent camera usage.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
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This adds a ColorSpace field to the V4L2SubdeviceFormat so that we can
set and request particular color spaces from V4L2.
This commit simply adds the field and fixes some occurrences of brace
initializers that would otherwise be broken. A subsequent commit will
pass and retrieve the value correctly to/from V4l2 itself.
Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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The ColorSpace from the StreamConfiguration is now handled
appropriately in the V4L2VideoDevice.
Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Add functions to the V4L2Device class to convert to and from
libcamera ColorSpace.
These functions are added to the base V4L2Device class so that they can
be shared both by the video device class and subdevices.
With the ColorSpace class, the color space and related other fields
are stored together, corresponding to a number of fields in the
various different V4L2 format structures. Template functions are
therefore a convenient implementation, and we must explicitly
instantiate the templates that will be needed.
Note that unset color spaces are converted to requests for the
device's "default" color space.
Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Add a prepare() function to the Private Request representation.
The prepare() function is used by the PipelineHandler class to
prepare a Request to be queued to the hardware.
The current implementation of prepare() handles the fences associated
with the Framebuffers part of a Request. The function starts an event
notifier for each of those and emits the Request::prepared signal when
all fences have been signalled or an optional timeout has expired.
The optional timeout allows to interrupt blocked waits and notify the
Request as failed so that it can be cancelled.
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Since a queue of waiting Requests has been introduced, not all Requests
queued to the PipelineHandler are immediately queued to the device.
As a Camera can be stopped at any time, it is required to complete the
waiting requests after the ones queued to the device had been completed.
Introduce a pure virtual PipelineHandler::stopDevice() function to be
implemented by pipeline handlers and make the PipelineHandler::stop()
function call it before completing pending requests.
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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In order to prepare to handle synchronization fences at Request
queueing time, split the PipelineHandler::queueRequest() function in
two, by creating a list of waiting requests and introducing the
doQueueRequest() function that queues requests to the device in the
order the pipeline has received them.
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Add to the FrameBuffer::Private class a unique pointer to a
Fence.
The Fence will be used to signal the availability of the Framebuffer for
incoming data transfer.
The Fence will be associated to a FrameBuffer at Request::addBuffer()
time, and if correctly signalled, reset by the core at Request queue
time.
If a FrameBuffer completes with errors, due to a Fence wait failure, the
Fence will still be owned by the FrameBuffer and it is application
responsibility to correctly reset it before reusing the buffer.
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Implement the D-Pointer design pattern in the Request class to allow
changing internal data without affecting the public ABI.
Move the internal fields that are not needed to implement the public
API to the Request::Private class already. This allows to remove
the friend class declaration for the PipelineHandler class, which can
now use the Request::Private API.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
[Move all internal fields to Request::Private and remove friend declaration]
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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This adds a function to set a camera sensor driver a test pattern
mode. CameraSensor initializes the test pattern mode by Off.
Signed-off-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
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The CameraSensor stores TestPatternModes as an int32_t. This prevents
the compiler from verifying the usage against the defined enum types.
Fix references to the TestPatternMode to store the value as the
TestPatternModeEnum type which is defined by the control generator.
Signed-off-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
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We cannot have a subclass of FrameBuffer because it is marked as final.
This adds a FrameBuffer constructor with FrameBuffer::Private. So we
can attach some additional resources with FrameBuffer through a
customized FrameBuffer::Private class.
Signed-off-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
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For consistency with UniqueFD, rename the fd() function to get().
Renaming UniqueFD::get() to fd() would have been another option, but was
rejected to keep as close as possible to the std::shared_ptr<> and
std::unique_ptr<> APIs.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
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Now that we have a UniqueFD class, the name FileDescriptor is ambiguous.
Rename it to SharedFD.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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The V4L2VideoDevice::open() function that takes an open file handle
duplicates it internally, and leaves the original handle untouched. This
is documented but not enforced through language constructs. Fix it by
passing a FileDescriptor to the function.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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Manages file descriptors owned by V4L2VideoDevice by UniqueFD.
This also changes the return type of exportDmabufFd to UniqueFD
from FileDescriptor in order to represent a caller owns the
returned file file descriptor.
Signed-off-by: Hirokazu Honda <hiroh@chromium.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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