On Tue, 10 Jul 2007 17:45:11 +0800 Zhang Wei wrote:
> Add channel wait queue and transfer callback dma_xfer_callback().
> If the DMA controller and driver support interrupt, when the
> transfer is finished, it will wakeup the wait queue
> and call the callback function of the channel.
>
> Add dma_async_raw_xfer() to API and device_raw_xfer() to struct dma_device
> for RAW physical address DMA transfer, which will be used at transfer
> between I/O address and memory address.
>
> Signed-off-by: Zhang Wei <[email protected]>
> ---
> include/linux/dmaengine.h | 35 +++++++++++++++++++++++++++++++++++
> 1 files changed, 35 insertions(+), 0 deletions(-)
> /**
> + * dma_async_raw_xfer - transfor data between physical addresses with callback
transfer
> + * @chan: DMA channel to be used
> + * @dest: destination address (physical)
> + * @src: source address (physical)
> + * @len: length
> + */
> +static inline dma_cookie_t dma_async_raw_xfer(struct dma_chan *chan,
> + dma_addr_t dest, dma_addr_t src, size_t len,
> + dma_xfer_callback cb, void *data)
> +{
---
~Randy
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