blob: 25d9b40a4651f0d2694819960384a48ffd98c5dc [file] [log] [blame]
Sergio Aguirre59f0ad82011-01-24 15:48:19 -03001 OMAP4 ISS Driver
2 ================
3
4Introduction
5------------
6
7The OMAP44XX family of chips contains the Imaging SubSystem (a.k.a. ISS),
8Which contains several components that can be categorized in 3 big groups:
9
10- Interfaces (2 Interfaces: CSI2-A & CSI2-B/CCP2)
11- ISP (Image Signal Processor)
12- SIMCOP (Still Image Coprocessor)
13
14For more information, please look in [1] for latest version of:
15 "OMAP4430 Multimedia Device Silicon Revision 2.x"
16
17As of Revision AB, the ISS is described in detail in section 8.
18
19This driver is supporting _only_ the CSI2-A/B interfaces for now.
20
21It makes use of the Media Controller framework [2], and inherited most of the
22code from OMAP3 ISP driver (found under drivers/media/platform/omap3isp/*),
23except that it doesn't need an IOMMU now for ISS buffers memory mapping.
24
25Supports usage of MMAP buffers only (for now).
26
27Tested platforms
28----------------
29
30- OMAP4430SDP, w/ ES2.1 GP & SEVM4430-CAM-V1-0 (Contains IMX060 & OV5640, in
31 which only the last one is supported, outputting YUV422 frames).
32
33- TI Blaze MDP, w/ OMAP4430 ES2.2 EMU (Contains 1 IMX060 & 2 OV5650 sensors, in
34 which only the OV5650 are supported, outputting RAW10 frames).
35
36- PandaBoard, Rev. A2, w/ OMAP4430 ES2.1 GP & OV adapter board, tested with
37 following sensors:
38 * OV5640
39 * OV5650
40
41- Tested on mainline kernel:
42
43 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=summary
44
45 Tag: v3.3 (commit c16fa4f2ad19908a47c63d8fa436a1178438c7e7)
46
47File list
48---------
49drivers/staging/media/omap4iss/
50include/media/omap4iss.h
51
52References
53----------
54
55[1] http://focus.ti.com/general/docs/wtbu/wtbudocumentcenter.tsp?navigationId=12037&templateId=6123#62
56[2] http://lwn.net/Articles/420485/
57[3] http://www.spinics.net/lists/linux-media/msg44370.html
58--
59Author: Sergio Aguirre <sergio.a.aguirre@gmail.com>
60Copyright (C) 2012, Texas Instruments