基于S3C2440 Codec通道的视频驱动开发

摘要

Because of the shortcomings of low-resolution Preview channel, this paper analyzes s3C2440 the camera interface CLAM1F and camera chip oV9650 works. This paper based on practice focuses on the hardware platform S3C2440 camera Codec channel driven development.Camera use OmniVision company OV9650, driven use a standard linux driver format, the platform uses Samsung s3C2440. This paper describes the driver initialization s3C2440 registers, memory allocation, OV9650 register initialization.The results show that Codec channel driver designed to surpass the needs of practical applications, high resolution, the output data format to facilitate processing.%介于Preview通道分辨率低的缺点，本文通过分析$3C244000摄像头接口CLAMlF和摄像头芯片0V9650的工作原理，在基于实习项目的基础上主要介绍基于s3c2440硬件平台的摄像头Codec通道的驱动开发。摄像头采OrnniVision公司的0V9650，驱动采用标准的Linux驱动规范，平台采用三星的S3C2440。主要介绍在驱动中初始化S3C2440的寄存器、内存的分配、0V9650寄存器的初始化等。实际使用结果表明，Codec通道设计的驱动程序能充分满足实际应用需求，具有高分辨率，输出的数据格式便于处理等优点。