On Thu, Feb 25, 2010 at 7:54 AM, Philip Balister <[email protected]> wrote: > On 02/24/2010 02:52 PM, Tony Lindgren wrote: >> >> * Philip Balister<[email protected]> [100224 14:28]: >>> >>> On 02/24/2010 12:35 PM, Tony Lindgren wrote: >>>> >>>> * Philip Balister<[email protected]> [100224 11:31]: >>>>> >>>>> I am trying to setup a dma operation to copy memory from GPMC >>>>> address space into RAM. The only examples using the omap-dma api use >>>>> hardware triggers. >>>>> >>>>> When I start a transfer, I end up with a DMA transaction error when >>>>> I start the transfer. >>>>> >>>>> Does anyone have a good example of a software transfer? Currently, I >>>>> am tracing the omap dma api to see how things map into the registers >>>>> ....
For the record, some unit tests for OMAP device drivers are available at http://dev.omapzoom.org/?p=richo/device_driver_test.git;a=summary. In dma/test_code/utils/dma/dma_addrmode_doubleidx.c, there's normal memory to memory transfer example.. Most of the omap_dma* api calls are done via dma_single_channel.c file. Hope this helps, Venkat. -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
