| Sergio Aguirre | 59f0ad8 | 2011-01-24 15:48:19 -0300 | [diff] [blame] | 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/ |
| 50 | include/media/omap4iss.h |
| 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 |