projects / linux-block.git / blame
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|---|---|---|
| 93db50d6 MCC |
1 | OMAP4 ISS Driver |
| 2 | ================ | |
| 3 | ||
| 4 | Author: Sergio Aguirre <sergio.a.aguirre@gmail.com> | |
| 5 | ||
| 6 | Copyright (C) 2012, Texas Instruments | |
| 59f0ad80 SA |
7 | |
| 8 | Introduction | |
| 9 | ------------ | |
| 10 | ||
| 11 | The OMAP44XX family of chips contains the Imaging SubSystem (a.k.a. ISS), | |
| 12 | Which contains several components that can be categorized in 3 big groups: | |
| 13 | ||
| 14 | - Interfaces (2 Interfaces: CSI2-A & CSI2-B/CCP2) | |
| 15 | - ISP (Image Signal Processor) | |
| 16 | - SIMCOP (Still Image Coprocessor) | |
| 17 | ||
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18 | For more information, please look in [#f1]_ for latest version of: |
| 19 | "OMAP4430 Multimedia Device Silicon Revision 2.x" | |
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20 | |
| 21 | As of Revision AB, the ISS is described in detail in section 8. | |
| 22 | ||
| 93db50d6 | 23 | This driver is supporting **only** the CSI2-A/B interfaces for now. |
| 59f0ad80 | 24 | |
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25 | It makes use of the Media Controller framework [#f2]_, and inherited most of the |
| 26 | code from OMAP3 ISP driver (found under drivers/media/platform/omap3isp/\*), | |
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27 | except that it doesn't need an IOMMU now for ISS buffers memory mapping. |
| 28 | ||
| 29 | Supports usage of MMAP buffers only (for now). | |
| 30 | ||
| 31 | Tested platforms | |
| 32 | ---------------- | |
| 33 | ||
| 34 | - OMAP4430SDP, w/ ES2.1 GP & SEVM4430-CAM-V1-0 (Contains IMX060 & OV5640, in | |
| 35 | which only the last one is supported, outputting YUV422 frames). | |
| 36 | ||
| 37 | - TI Blaze MDP, w/ OMAP4430 ES2.2 EMU (Contains 1 IMX060 & 2 OV5650 sensors, in | |
| 38 | which only the OV5650 are supported, outputting RAW10 frames). | |
| 39 | ||
| 40 | - PandaBoard, Rev. A2, w/ OMAP4430 ES2.1 GP & OV adapter board, tested with | |
| 41 | following sensors: | |
| 42 | * OV5640 | |
| 43 | * OV5650 | |
| 44 | ||
| 45 | - Tested on mainline kernel: | |
| 46 | ||
| 93db50d6 | 47 | http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=summary |
| 59f0ad80 SA |
48 | |
| 49 | Tag: v3.3 (commit c16fa4f2ad19908a47c63d8fa436a1178438c7e7) | |
| 50 | ||
| 51 | File list | |
| 52 | --------- | |
| 53 | drivers/staging/media/omap4iss/ | |
| eb4b0ec7 | 54 | include/linux/platform_data/media/omap4iss.h |
| 59f0ad80 SA |
55 | |
| 56 | References | |
| 57 | ---------- | |
| 58 | ||
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59 | .. [#f1] http://focus.ti.com/general/docs/wtbu/wtbudocumentcenter.tsp?navigationId=12037&templateId=6123#62 |
| 60 | .. [#f2] http://lwn.net/Articles/420485/ |