| Windows系统DMAVxD核心技术剖析及应用研究 |
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| 引用本文： | 解成俊,韩广良,王新刚. Windows系统DMAVxD核心技术剖析及应用研究[J]. 北华大学学报(自然科学版), 2002, 3(1): 84-89. DOI: 10.3969/j.issn.1009-4822.2002.01.028 |
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| 作者姓名： | 解成俊 韩广良 王新刚 |
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| 作者单位： | 中国科学院长春光学精密机械与物理研究所,吉林,长春,130021 |
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| 基金项目： | 中国科学院知识创新工程青年基金资助项目 (Q0 1H0 1) |
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| 摘 要： | 从DMA控制器的硬件出发,用一个数据结构概括了它的结构描述,比较了DLL和VxD(SYS)虚拟设备驱动程序开发的性能,全面论述了Windows操作系统下VxD机制的DMA虚拟设备驱动程序开发的核心技术,即物理毗邻内存的申请、使用以及释放问题,对于3种可用的申请物理毗邻内存的方法进行了彻底剖析,并比较了优缺点,并且将其成功地用于AMCC5933视频信号采集卡的开发课题中.
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| 关 键 词： | DMA控制器 VDMAD 物理毗邻内存 虚拟设备驱动程序 |
| 文章编号： | 1009-4822(2002)01-0084-06 |
| 修稿时间： | 2001-10-08 |
Core Technology of Windows DMA Virtual Device Driver Development |
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| Xie Chengjun,Han Guangliang,Wang Xingang. Core Technology of Windows DMA Virtual Device Driver Development[J]. Journal of Beihua University(Natural Science), 2002, 3(1): 84-89. DOI: 10.3969/j.issn.1009-4822.2002.01.028 |
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| Authors: | Xie Chengjun Han Guangliang Wang Xingang |
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| Abstract: | The DMA controller structure was described by a data structure based DMA controller hardware,and the performance of the DLL and VxD(SYS) virtual device drivers was compared.The core technology of windows DMA virtual device driver development was discussed,that is,the allocation,use and free of the physical abut memory and three usable allocation methods of physical abut memory were analyzed and compared,which have been applied in the development of AMCC5933 video capture card successfully. |
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| Keywords: | DMA controller VDMAD Physical abut memory Virtual device driver |
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