Features; Overview; Usage - Texas Instruments OMAP35 Series User Manual

6.2. Features

6.2.1. Overview

The OMAP35x Display driver supports the following features:
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6.2.2. Usage

Usage of each feature supported by driver is explained below.
6.2.2.1. Opening and Closing of Driver
The device can be opened using open call from the application, with the device
name and mode of operation as parameters. Application can open the driver
only in blocking mode. Non-blocking mode of open is not supported.
V4L2 Driver
The driver will expose two software channels (/dev/v4l/video1 and /dev/v4l/
video2), one for each video pipeline. Both of these channels supports only
blocking mode of operations. These channels can only be opened once.
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Supports LCD display interface at VGA resolution (480*640)
Supports TV display interface at NTSC resolutions on Video Pipelines (only
S-Video out is supported, composite out is not supported)
Supports DVI digital interface at 720P and 480P resolution.
Supports Graphics pipeline and two video pipelines. Graphics pipeline is
supported through fbdev and video pipelines through V4L2
Supported color formats: On OSD (Graphics pipeline): RGB565, RGB888,
ARGB and RGBA. On Video pipelines: YUV422 interleaved, RGB565,
RGB888.
Configuration of parameters such as height and width of display screen,
bits-per-pixel etc.
Supports setting up of OSD and Video pipeline destinations (TV or LCD).
Through syfs for OSD and compile time option for video pipelines
Supports buffer management through memory mapped and user pointer
buffer exchange for application usage (mmaped)
Supports rotation - 0, 90, 180 and 270 degrees on LCD and TV output
Supports destination and source colorkeying on Video pipelines through
V4L2
Supports alpha blending through ARGB pixel format on Video2 pipeline and
RGBA and ARGB format on graphics pipeline and global alpha blending
Platform Support Products
Display Driver
Features
Version 02.01.01.08