Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 6e3ecaf0 authored by Sascha Hauer's avatar Sascha Hauer Committed by Dan Williams
Browse files

dmaengine: add wrapper functions for device control functions 



Add wrapper functions around the dma_device->device_control function
to bring back type safety. Also, add a wrapper function around
dma_async_tx_descriptor->tx_submit. This is named dmaengine_submit
instead of dmaengine_tx_submit to get rid of the confusing 'tx' in the
function name

Signed-off-by: default avatarSascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: default avatarDan Williams <dan.j.williams@intel.com>
parent 782bc950

include/linux/dmaengine.h

+34 −0
Original line number Diff line number Diff line
@@ -494,6 +494,40 @@ struct dma_device { 
	void (*device_issue_pending)(struct dma_chan *chan);

};



static inline int dmaengine_device_control(struct dma_chan *chan,

					   enum dma_ctrl_cmd cmd,

					   unsigned long arg)

{

	return chan->device->device_control(chan, cmd, arg);

}



static inline int dmaengine_slave_config(struct dma_chan *chan,

					  struct dma_slave_config *config)

{

	return dmaengine_device_control(chan, DMA_SLAVE_CONFIG,

			(unsigned long)config);

}



static inline int dmaengine_terminate_all(struct dma_chan *chan)

{

	return dmaengine_device_control(chan, DMA_TERMINATE_ALL, 0);

}



static inline int dmaengine_pause(struct dma_chan *chan)

{

	return dmaengine_device_control(chan, DMA_PAUSE, 0);

}



static inline int dmaengine_resume(struct dma_chan *chan)

{

	return dmaengine_device_control(chan, DMA_RESUME, 0);

}



static inline int dmaengine_submit(struct dma_async_tx_descriptor *desc)

{

	return desc->tx_submit(desc);

}



static inline bool dmaengine_check_align(u8 align, size_t off1, size_t off2, size_t len)

{

	size_t mask;