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| author |   Sergio Aguirre <sergio.a.aguirre@gmail.com> | 2011-01-24 15:48:19 -0300 |
|---|---|---|
| committer |   Mauro Carvalho Chehab <mchehab@redhat.com> | 2013-12-03 17:21:04 -0200 |
| commit | 59f0ad8076816d13f7cba80d2b178ff5ab787e2e (patch) | |
| tree | 1b89f8bb0c4b7b94e4f8d1344af6433425bad704 /Documentation/video4linux | |
| parent | [media] mt9p031: Include linux/of.h header (diff) | |
| download | linux-dev-59f0ad8076816d13f7cba80d2b178ff5ab787e2e.tar.xz linux-dev-59f0ad8076816d13f7cba80d2b178ff5ab787e2e.zip | |
[media] v4l: omap4iss: Add support for OMAP4 camera interface - Core
This adds a very simplistic driver to utilize the CSI2A interface inside
the ISS subsystem in OMAP4, and dump the data to memory.
Check Documentation/video4linux/omap4_camera.txt for details.
This commit adds the driver core, registers definitions and
documentation.
Signed-off-by: Sergio Aguirre <sergio.a.aguirre@gmail.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'Documentation/video4linux')
| -rw-r--r-- | Documentation/video4linux/omap4_camera.txt | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/Documentation/video4linux/omap4_camera.txt b/Documentation/video4linux/omap4_camera.txt new file mode 100644 index 000000000000..25d9b40a4651 --- /dev/null +++ b/Documentation/video4linux/omap4_camera.txt @@ -0,0 +1,60 @@ + OMAP4 ISS Driver + ================ + +Introduction +------------ + +The OMAP44XX family of chips contains the Imaging SubSystem (a.k.a. ISS), +Which contains several components that can be categorized in 3 big groups: + +- Interfaces (2 Interfaces: CSI2-A & CSI2-B/CCP2) +- ISP (Image Signal Processor) +- SIMCOP (Still Image Coprocessor) + +For more information, please look in [1] for latest version of: + "OMAP4430 Multimedia Device Silicon Revision 2.x" + +As of Revision AB, the ISS is described in detail in section 8. + +This driver is supporting _only_ the CSI2-A/B interfaces for now. + +It makes use of the Media Controller framework [2], and inherited most of the +code from OMAP3 ISP driver (found under drivers/media/platform/omap3isp/*), +except that it doesn't need an IOMMU now for ISS buffers memory mapping. + +Supports usage of MMAP buffers only (for now). + +Tested platforms +---------------- + +- OMAP4430SDP, w/ ES2.1 GP & SEVM4430-CAM-V1-0 (Contains IMX060 & OV5640, in + which only the last one is supported, outputting YUV422 frames). + +- TI Blaze MDP, w/ OMAP4430 ES2.2 EMU (Contains 1 IMX060 & 2 OV5650 sensors, in + which only the OV5650 are supported, outputting RAW10 frames). + +- PandaBoard, Rev. A2, w/ OMAP4430 ES2.1 GP & OV adapter board, tested with + following sensors: + * OV5640 + * OV5650 + +- Tested on mainline kernel: + + http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=summary + + Tag: v3.3 (commit c16fa4f2ad19908a47c63d8fa436a1178438c7e7) + +File list +--------- +drivers/staging/media/omap4iss/ +include/media/omap4iss.h + +References +---------- + +[1] http://focus.ti.com/general/docs/wtbu/wtbudocumentcenter.tsp?navigationId=12037&templateId=6123#62 +[2] http://lwn.net/Articles/420485/ +[3] http://www.spinics.net/lists/linux-media/msg44370.html +-- +Author: Sergio Aguirre <sergio.a.aguirre@gmail.com> +Copyright (C) 2012, Texas Instruments |