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>

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>
Sascha Hauer · Dan Williams
1 parent 782bc950d8
Showing 1 changed file with 34 additions and 0 deletions Side-by-side Diff
include/linux/dmaengine.h
@@ -494,6 +494,40 @@
 	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;
...	...	@@ -494,6 +494,40 @@
494	494	void (device_issue_pending)(struct dma_chan chan);
495	495	};
496	496
	497	+static 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	+
	504	+static 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	+
	511	+static inline int dmaengine_terminate_all(struct dma_chan *chan)
	512	+{
	513	+ return dmaengine_device_control(chan, DMA_TERMINATE_ALL, 0);
	514	+}
	515	+
	516	+static inline int dmaengine_pause(struct dma_chan *chan)
	517	+{
	518	+ return dmaengine_device_control(chan, DMA_PAUSE, 0);
	519	+}
	520	+
	521	+static inline int dmaengine_resume(struct dma_chan *chan)
	522	+{
	523	+ return dmaengine_device_control(chan, DMA_RESUME, 0);
	524	+}
	525	+
	526	+static inline int dmaengine_submit(struct dma_async_tx_descriptor *desc)
	527	+{
	528	+ return desc->tx_submit(desc);
	529	+}
	530	+
497	531	static inline bool dmaengine_check_align(u8 align, size_t off1, size_t off2, size_t len)
498	532	{
499	533	size_t mask;