Download LSP 2.10 Davinci Linux VPFE Capture Driver

Contents
1
2
3
Introduction......................................................................................................................... 6
1.1
EVM Configuration for Video Capture .................................................................................. 7
1.2
Supported Features ....................................................................................................... 8
1.3
Constraints ................................................................................................................. 8
Driver Overview ................................................................................................................... 9
2.1
Driver Architecture ........................................................................................................ 9
2.2
Design ..................................................................................................................... 10
Initialization
2.2.2
Opening and Closing of Driver ............................................................................ 11
2.2.3
Buffer Management ......................................................................................... 11
2.2.4
Configuration and Control .................................................................................. 13
2.2.5
IOCTLs Handling ............................................................................................ 16
2.2.6
ISR Handling................................................................................................. 28
Decoders.................................................................................................................. 30
3.1.1
Data Structures and API for Decoder Interface ......................................................... 30
3.1.2
Supported Decoders ........................................................................................ 33
3.1.3
Adding New Decoder Support ............................................................................. 34
User Interface .................................................................................................................... 35
4.1
API ......................................................................................................................... 35
4.2
Data Structures .......................................................................................................... 35
4.3
4.2.1
CCDC Configuration ........................................................................................ 35
4.2.2
CCDC Control ............................................................................................... 35
4.2.3
MT9T001 Parameter Structure ............................................................................ 36
4.2.4
MT9P031 Parameter Structure ............................................................................ 36
4.2.5
TVP5146 Parameter Structure ............................................................................ 37
4.2.6
TVP7002 Parameter Structure ............................................................................ 37
4.2.7
Request Buffer Structure for V4L2 ........................................................................ 37
4.2.8
Buffer Structure for V4L2
4.2.9
Query Capability Structure for V4L2 ...................................................................... 39
4.2.10
Input Structure for V4L2 .................................................................................... 39
4.2.11
Standard Structure for V4L2 ............................................................................... 40
4.2.12
Format Description Structure for V4L2 ................................................................... 40
4.2.13
Format Structure for V4L2 ................................................................................. 41
4.2.14
Query Control Structure for V4L2 ......................................................................... 41
4.2.15
Control Structure for V4L2 ................................................................................. 42
..................................................................................
38
Enumerations and Defines ............................................................................................. 42
4.3.1
5
6
11
Portability .......................................................................................................................... 30
3.1
4
..................................................................................................
2.2.1
Possible Standards for Different Decoders .............................................................. 42
Driver Files ........................................................................................................................ 43
Build and Installation .......................................................................................................... 44
6.1
Build Steps
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SPRUGP6 – June 2009
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Table of Contents
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