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authorSascha Hauer <s.hauer@pengutronix.de>2010-09-30 09:56:33 -0400
committerDan Williams <dan.j.williams@intel.com>2010-10-05 18:49:26 -0400
commit6e3ecaf0ad49de0bed829d409a164e7107c02993 (patch)
tree23a351cba3198f1f41cdc09eca376409070ef504 /include/linux/dmaengine.h
parent782bc950d84e404422ba21008fd51ee894c8d231 (diff)
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: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'include/linux/dmaengine.h')
-rw-r--r--include/linux/dmaengine.h34
1 files changed, 34 insertions, 0 deletions
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index 32cd84b47478..2218fdcbe8a9 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -494,6 +494,40 @@ struct dma_device {
494 void (*device_issue_pending)(struct dma_chan *chan); 494 void (*device_issue_pending)(struct dma_chan *chan);
495}; 495};
496 496
497static inline int dmaengine_device_control(struct dma_chan *chan,
498 enum dma_ctrl_cmd cmd,
499 unsigned long arg)
500{
501 return chan->device->device_control(chan, cmd, arg);
502}
503
504static inline int dmaengine_slave_config(struct dma_chan *chan,
505 struct dma_slave_config *config)
506{
507 return dmaengine_device_control(chan, DMA_SLAVE_CONFIG,
508 (unsigned long)config);
509}
510
511static inline int dmaengine_terminate_all(struct dma_chan *chan)
512{
513 return dmaengine_device_control(chan, DMA_TERMINATE_ALL, 0);
514}
515
516static inline int dmaengine_pause(struct dma_chan *chan)
517{
518 return dmaengine_device_control(chan, DMA_PAUSE, 0);
519}
520
521static inline int dmaengine_resume(struct dma_chan *chan)
522{
523 return dmaengine_device_control(chan, DMA_RESUME, 0);
524}
525
526static inline int dmaengine_submit(struct dma_async_tx_descriptor *desc)
527{
528 return desc->tx_submit(desc);
529}
530
497static inline bool dmaengine_check_align(u8 align, size_t off1, size_t off2, size_t len) 531static inline bool dmaengine_check_align(u8 align, size_t off1, size_t off2, size_t len)
498{ 532{
499 size_t mask; 533 size_t mask;