On 06/30/2010 08:30 AM, amruth pattanada wrote:
Hi I need some clarification regarding read DMA data from silicon image controller. How do know that DMA transfer happened and where to look for the data after the transfer. Should we look at BAR2 channel X Task file register data word or look into allocated DMA buffer which is specified in the PRD table. I am reading 0x00 in the PRD table scatter gather list and it hangs in the when I tried to read data word of channel task file register. Please let me know how to read data buffer after the DMA is complete.
Teaching you how to write a non-Linux driver is outside the scope of linux-ide and linux-kernel. This information is covered by the freely available Silicon Image documentation, and SiI support should be able to assist you further beyond that.
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