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1 .. SPDX-License-Identifier: GPL-2.0
3 .. _v4l2-meta-fmt-rpi-be-cfg:
9 Raspberry Pi PiSP Back End configuration format
12 The Raspberry Pi PiSP Back End memory-to-memory image signal processor is
14 to the `pispbe-config` output video device node using the
17 The PiSP Back End processes images in tiles, and its configuration requires
22 <https://datasheets.raspberrypi.com/camera/raspberry-pi-image-signal-processor-specification.pdf>`_
23 provide detailed description of the ISP back end configuration and programming
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30 to be processed and is therefore shared across all the tiles of the image. So
34 Global configuration data are passed to the ISP by populating the member of
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41 a single tile in an image is going to be processed. A single set of tile
42 parameters consist of 160 bytes of data and to process a batch of tiles several
45 Tiles parameters are passed to the ISP by populating the member of
48 Raspberry Pi PiSP Back End uAPI data types
51 This section describes the data types exposed to userspace by the Raspberry Pi
52 PiSP Back End. The section is informative only, for a detailed description of
53 each field refer to the `Raspberry Pi PiSP technical specification
54 <https://datasheets.raspberrypi.com/camera/raspberry-pi-image-signal-processor-specification.pdf>`_.
56 .. kernel-doc:: include/uapi/linux/media/raspberrypi/pisp_be_config.h