1 .. SPDX-License-Identifier: GPL-2.0 1 .. SPDX-License-Identifier: GPL-2.0
2 2
3 OMAP4 ISS Driver 3 OMAP4 ISS Driver
4 ================ 4 ================
5 5
6 Author: Sergio Aguirre <sergio.a.aguirre@gmail. 6 Author: Sergio Aguirre <sergio.a.aguirre@gmail.com>
7 7
8 Copyright (C) 2012, Texas Instruments 8 Copyright (C) 2012, Texas Instruments
9 9
10 Introduction 10 Introduction
11 ------------ 11 ------------
12 12
13 The OMAP44XX family of chips contains the Imag 13 The OMAP44XX family of chips contains the Imaging SubSystem (a.k.a. ISS),
14 Which contains several components that can be 14 Which contains several components that can be categorized in 3 big groups:
15 15
16 - Interfaces (2 Interfaces: CSI2-A & CSI2-B/CC 16 - Interfaces (2 Interfaces: CSI2-A & CSI2-B/CCP2)
17 - ISP (Image Signal Processor) 17 - ISP (Image Signal Processor)
18 - SIMCOP (Still Image Coprocessor) 18 - SIMCOP (Still Image Coprocessor)
19 19
20 For more information, please look in [#f1]_ fo 20 For more information, please look in [#f1]_ for latest version of:
21 "OMAP4430 Multimedia Device Silicon Revision 2 21 "OMAP4430 Multimedia Device Silicon Revision 2.x"
22 22
23 As of Revision AB, the ISS is described in det 23 As of Revision AB, the ISS is described in detail in section 8.
24 24
25 This driver is supporting **only** the CSI2-A/ 25 This driver is supporting **only** the CSI2-A/B interfaces for now.
26 26
27 It makes use of the Media Controller framework 27 It makes use of the Media Controller framework [#f2]_, and inherited most of the
28 code from OMAP3 ISP driver (found under driver 28 code from OMAP3 ISP driver (found under drivers/media/platform/ti/omap3isp/\*),
29 except that it doesn't need an IOMMU now for I 29 except that it doesn't need an IOMMU now for ISS buffers memory mapping.
30 30
31 Supports usage of MMAP buffers only (for now). 31 Supports usage of MMAP buffers only (for now).
32 32
33 Tested platforms 33 Tested platforms
34 ---------------- 34 ----------------
35 35
36 - OMAP4430SDP, w/ ES2.1 GP & SEVM4430-CAM-V1-0 36 - OMAP4430SDP, w/ ES2.1 GP & SEVM4430-CAM-V1-0 (Contains IMX060 & OV5640, in
37 which only the last one is supported, output 37 which only the last one is supported, outputting YUV422 frames).
38 38
39 - TI Blaze MDP, w/ OMAP4430 ES2.2 EMU (Contain 39 - TI Blaze MDP, w/ OMAP4430 ES2.2 EMU (Contains 1 IMX060 & 2 OV5650 sensors, in
40 which only the OV5650 are supported, outputt 40 which only the OV5650 are supported, outputting RAW10 frames).
41 41
42 - PandaBoard, Rev. A2, w/ OMAP4430 ES2.1 GP & 42 - PandaBoard, Rev. A2, w/ OMAP4430 ES2.1 GP & OV adapter board, tested with
43 following sensors: 43 following sensors:
44 * OV5640 44 * OV5640
45 * OV5650 45 * OV5650
46 46
47 - Tested on mainline kernel: 47 - Tested on mainline kernel:
48 48
49 http://git.kernel.org/?p=linux/kernel/ 49 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=summary
50 50
51 Tag: v3.3 (commit c16fa4f2ad19908a47c63d8fa4 51 Tag: v3.3 (commit c16fa4f2ad19908a47c63d8fa436a1178438c7e7)
52 52
53 File list 53 File list
54 --------- 54 ---------
55 drivers/staging/media/omap4iss/ 55 drivers/staging/media/omap4iss/
56 include/linux/platform_data/media/omap4iss.h 56 include/linux/platform_data/media/omap4iss.h
57 57
58 References 58 References
59 ---------- 59 ----------
60 60
61 .. [#f1] http://focus.ti.com/general/docs/wtbu 61 .. [#f1] http://focus.ti.com/general/docs/wtbu/wtbudocumentcenter.tsp?navigationId=12037&templateId=6123#62
62 .. [#f2] http://lwn.net/Articles/420485/ 62 .. [#f2] http://lwn.net/Articles/420485/
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.