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59f0ad80 SA |
1 | OMAP4 ISS Driver |
2 | ================ | |
3 | ||
4 | Introduction | |
5 | ------------ | |
6 | ||
7 | The OMAP44XX family of chips contains the Imaging SubSystem (a.k.a. ISS), | |
8 | Which 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 | ||
14 | For more information, please look in [1] for latest version of: | |
15 | "OMAP4430 Multimedia Device Silicon Revision 2.x" | |
16 | ||
17 | As of Revision AB, the ISS is described in detail in section 8. | |
18 | ||
19 | This driver is supporting _only_ the CSI2-A/B interfaces for now. | |
20 | ||
21 | It makes use of the Media Controller framework [2], and inherited most of the | |
22 | code from OMAP3 ISP driver (found under drivers/media/platform/omap3isp/*), | |
23 | except that it doesn't need an IOMMU now for ISS buffers memory mapping. | |
24 | ||
25 | Supports usage of MMAP buffers only (for now). | |
26 | ||
27 | Tested 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 | ||
47 | File list | |
48 | --------- | |
49 | drivers/staging/media/omap4iss/ | |
eb4b0ec7 | 50 | include/linux/platform_data/media/omap4iss.h |
59f0ad80 SA |
51 | |
52 | References | |
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 | -- | |
59 | Author: Sergio Aguirre <sergio.a.aguirre@gmail.com> | |
60 | Copyright (C) 2012, Texas Instruments |