Changes from v1
---------------
- Addressed all review comments from Sylwester
- Made sensor subdevs as independent i2c devices
- Lots of cleanup
- Debugfs support added
- Removed PMU global register access
Description
-----------
This patchset adds a new driver for the FIMC-IS IP available in
Samsung Exynos5 SoC onwards. The camera subsystem in Exynos5 is significantly
different from that of Exynos4 and before.
In Exynos4, the FIMC-IS is a sub component of the camera subsystem which
takes input from fimc-lite and does post processing of the image and passes
it to the fimc-capture which writes to the output DMA.
But in case of Exynos5, the fimc-capture IP is removed and instead a more
powerful fimc-is takes the role of giving scaled image output via DMA.
FIMC-IS internally has two scalers for this in addition to other
post-processing components like dynamic range compression,
optical distortion correction, digital image stabilization, 3D noise reduction
and face detection.
FIMC-IS firmware can directly control certain sensors and the
sensors compatible with the fimc-is will be termed as fimc-is sensors.
This patchset adds support for two such fimc-is sensors - s5k4e5 and s5k6a3.
These sensors are controlled exclusively by the fimc-is firmware at present.
They provide only SRGB unscaled output which will reach fimc-is
via mipi-csis and fimc-lite. The color space conversion, scaling and all other
post processing will be then done by the fimc-is IP components.
The fimc-is driver operates in the following manner:
The sensor subdevice created by this driver will be used by the exynos5
media-device's pipeline0 which connects it with mipi-csis and fimc-lite.
|fimc-is-sensor|--->|mipi-csis|--->|fimc-lite|--->|Memory|
The output bayer image dumped by the fimc-lite subdev into memory is fed
into the ISP subdev of fimc-is driver. For that the pipeline1 of exynos5
media-device will look like this:
|Memory|--->|fimc-is-isp|--->|fimc-is-scaler-codec|--->|fimc-is-scaler-preview|
The isp subdev accepts bayer input buffer at its OUTPUT_MPLANE. It will
do a set of post processing operations and passes it on-the-fly to the
scalers. The two scalers can give two different scaled outputs which can
be used for recording and preview simultaneously. Both scaler-codec and
scaler-preview dumps DMA data out through its CAPTURE_MPLANE.
This patchset adds basic version of the driver which accepts
bayer input data and provides 2 different scaled outputs with most of
the post processing blocks disabled.
Arun Kumar K (10):
exynos5-fimc-is: Add Exynos5 FIMC-IS device tree bindings
documentation
exynos5-fimc-is: Adds fimc-is driver core files
exynos5-fimc-is: Adds common driver header files
exynos5-fimc-is: Adds the register definition and context header
exynos5-fimc-is: Adds the sensor subdev
exynos5-fimc-is: Adds isp subdev
exynos5-fimc-is: Adds scaler subdev
exynos5-fimc-is: Adds the hardware pipeline control
exynos5-fimc-is: Adds the hardware interface module
exynos5-fimc-is: Adds the Kconfig and Makefile
.../devicetree/bindings/media/exynos5-fimc-is.txt | 41 +
drivers/media/platform/exynos5-is/Kconfig | 12 +
drivers/media/platform/exynos5-is/Makefile | 3 +
drivers/media/platform/exynos5-is/fimc-is-cmd.h | 201 ++
drivers/media/platform/exynos5-is/fimc-is-core.c | 304 +++
drivers/media/platform/exynos5-is/fimc-is-core.h | 126 ++
drivers/media/platform/exynos5-is/fimc-is-err.h | 261 +++
.../media/platform/exynos5-is/fimc-is-interface.c | 1025 ++++++++++
.../media/platform/exynos5-is/fimc-is-interface.h | 131 ++
drivers/media/platform/exynos5-is/fimc-is-isp.c | 438 +++++
drivers/media/platform/exynos5-is/fimc-is-isp.h | 89 +
.../media/platform/exynos5-is/fimc-is-metadata.h | 771 ++++++++
drivers/media/platform/exynos5-is/fimc-is-param.h | 1259 +++++++++++++
.../media/platform/exynos5-is/fimc-is-pipeline.c | 1959 ++++++++++++++++++++
.../media/platform/exynos5-is/fimc-is-pipeline.h | 129 ++
drivers/media/platform/exynos5-is/fimc-is-regs.h | 107 ++
drivers/media/platform/exynos5-is/fimc-is-scaler.c | 492 +++++
drivers/media/platform/exynos5-is/fimc-is-scaler.h | 107 ++
drivers/media/platform/exynos5-is/fimc-is-sensor.c | 463 +++++
drivers/media/platform/exynos5-is/fimc-is-sensor.h | 168 ++
drivers/media/platform/exynos5-is/fimc-is.h | 151 ++
21 files changed, 8237 insertions(+)
create mode 100644 Documentation/devicetree/bindings/media/exynos5-fimc-is.txt
create mode 100644 drivers/media/platform/exynos5-is/fimc-is-cmd.h
create mode 100644 drivers/media/platform/exynos5-is/fimc-is-core.c
create mode 100644 drivers/media/platform/exynos5-is/fimc-is-core.h
create mode 100644 drivers/media/platform/exynos5-is/fimc-is-err.h
create mode 100644 drivers/media/platform/exynos5-is/fimc-is-interface.c
create mode 100644 drivers/media/platform/exynos5-is/fimc-is-interface.h
create mode 100644 drivers/media/platform/exynos5-is/fimc-is-isp.c
create mode 100644 drivers/media/platform/exynos5-is/fimc-is-isp.h
create mode 100644 drivers/media/platform/exynos5-is/fimc-is-metadata.h
create mode 100644 drivers/media/platform/exynos5-is/fimc-is-param.h
create mode 100644 drivers/media/platform/exynos5-is/fimc-is-pipeline.c
create mode 100644 drivers/media/platform/exynos5-is/fimc-is-pipeline.h
create mode 100644 drivers/media/platform/exynos5-is/fimc-is-regs.h
create mode 100644 drivers/media/platform/exynos5-is/fimc-is-scaler.c
create mode 100644 drivers/media/platform/exynos5-is/fimc-is-scaler.h
create mode 100644 drivers/media/platform/exynos5-is/fimc-is-sensor.c
create mode 100644 drivers/media/platform/exynos5-is/fimc-is-sensor.h
create mode 100644 drivers/media/platform/exynos5-is/fimc-is.h
--
1.7.9.5
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