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authorSascha Hauer <s.hauer@pengutronix.de>2010-09-30 13:56:33 +0000
committerDan Williams <dan.j.williams@intel.com>2010-10-05 15:49:26 -0700
commit6e3ecaf0ad49de0bed829d409a164e7107c02993 (patch)
tree23a351cba3198f1f41cdc09eca376409070ef504
parent782bc950d84e404422ba21008fd51ee894c8d231 (diff)
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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>
-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 32cd84b4747..2218fdcbe8a 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -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;