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Introduce a new field in the controls serialization protocol to
allow discerning which ControlIdMap a ControlInfoMap refers to.
The newly introduced IdMapType enumeration describes the possible
info maps:
- Either the globally available controls::controls and
properties::properties maps, which are valid across IPC boundaries
- A ControlIdMap created locally by the V4L2 device, which is not valid
across the IPC boundaries
At de-serialization time the idMapType field is inspected and
- If the idmap is a globally defined one, there's no need to create
new ControlId instances when populating the de-serialized
ControlInfoMap. Use the globally available map to retrieve the
ControlId reference and use it.
- If the idmap is a map only available locally, create a new ControlId
as it used to happen before this patch.
As a direct consequence, this change allows us to perform lookup by
ControlId reference on de-serialized ControlIdMap that refers to the
libcamera defined controls::controls and properties::properties.
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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The IPA headers are installed into $prefix/include/libcamera/ipa/, but
are located in the source tree in include/ipa/. This requires files
within libcamera to include them with
#include <ipa/foo.h>
while a third party IPA would need to use
#include <libcamera/ipa/foo.h>
Not only is this inconsistent, it can create issues later if IPA headers
need to include each other, as the first form of include directive
wouldn't be valid once the headers are installed.
Fix the problem by moving the IPA headers to include/libcamera/ipa/.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Jacopo Mondi <jacopo@jmondi.org>
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To prepare for storage of additional information in the ControlRange
structure, rename it to ControlInfo.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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Report in a new field of the ipa_control_value_entry structure if the
value contains an array. Reorganize the other fields of the structure to
avoid increasing its size.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The control-related structures ipa_controls_header,
ipa_control_value_entry and ipa_control_range_entry define the IPA
protocol and are thus part of the ABI. To avoid breaking it
inadvertently, use static_assert() to check the size of the structures.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The <ipa/ipa_controls.h> header makes use of uint*_t types, but doesn't
include stdint.h. Fix it, and include ipa_controls.h in ipa_controls.cpp
to test compilation of the header on its own.
While at it, fix the comment as the top of ipa_controls.cpp to refer to
the correct file name.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The ipa_control_range_data structure is only used to document the IPA
control serialization format, but isn't used in code at all as the
ControlRange entries are directly serialized to a byte stream buffer.
This applies to the ipa_control_value_data structure that is solely used
by ipa_control_range_data.
Expand the documentation of the IPA control serialization format to
describe the layout of the control range data in words and diagrams
instead of through a C structure. Remove the unused structures as a
result.
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Define data structures to be used during interaction between IPA modules
and pipeline handlers to serialize control lists and control info maps.
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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