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-rw-r--r--include/linux/rio_drv.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/rio_drv.h b/include/linux/rio_drv.h
index 7f07470e1ed9..31ad146be316 100644
--- a/include/linux/rio_drv.h
+++ b/include/linux/rio_drv.h
@@ -377,6 +377,15 @@ void rio_unregister_driver(struct rio_driver *);
struct rio_dev *rio_dev_get(struct rio_dev *);
void rio_dev_put(struct rio_dev *);
+#ifdef CONFIG_RAPIDIO_DMA_ENGINE
+extern struct dma_chan *rio_request_dma(struct rio_dev *rdev);
+extern void rio_release_dma(struct dma_chan *dchan);
+extern struct dma_async_tx_descriptor *rio_dma_prep_slave_sg(
+ struct rio_dev *rdev, struct dma_chan *dchan,
+ struct rio_dma_data *data,
+ enum dma_transfer_direction direction, unsigned long flags);
+#endif
+
/**
* rio_name - Get the unique RIO device identifier
* @rdev: RIO device