[Sound-open-firmware] [PATCH] dma: change dma transfer type to enum.

[Keyon Jie]

Change to use enum for dma transfer type.

Signed-off-by: Keyon Jie <yang.jie at linux.intel.com>
---
 src/drivers/dw-dma.c   |  2 +-
 src/drivers/hda-dma.c  |  2 +-
 src/include/reef/dma.h | 18 ++++++++++--------
 3 files changed, 12 insertions(+), 10 deletions(-)

diff --git a/src/drivers/dw-dma.c b/src/drivers/dw-dma.c
index c2d6917..49f782d 100644
--- a/src/drivers/dw-dma.c
+++ b/src/drivers/dw-dma.c
@@ -249,7 +249,7 @@
 /* data for each DMA channel */
 struct dma_chan_data {
 	uint32_t status;
-	uint32_t direction;
+	enum dma_copy_dir direction;
 	struct dw_lli2 *lli;
 	struct dw_lli2 *lli_current;
 	uint32_t desc_count;
diff --git a/src/drivers/hda-dma.c b/src/drivers/hda-dma.c
index 06b2d9c..d2064e8 100644
--- a/src/drivers/hda-dma.c
+++ b/src/drivers/hda-dma.c
@@ -84,7 +84,7 @@ struct hda_chan_data {
 	uint32_t status;
 	uint32_t desc_count;
 	uint32_t desc_avail;
-	uint32_t direction;
+	enum dma_copy_dir direction;
 };
 
 struct dma_pdata {
diff --git a/src/include/reef/dma.h b/src/include/reef/dma.h
index f82b533..247bcbf 100644
--- a/src/include/reef/dma.h
+++ b/src/include/reef/dma.h
@@ -38,13 +38,15 @@
 #include <reef/reef.h>
 #include <reef/wait.h>
 
-/* DMA directions */
-#define DMA_DIR_MEM_TO_MEM	0	/* local memcpy */
-#define DMA_DIR_HMEM_TO_LMEM	1	/* host to local memcpy */
-#define DMA_DIR_LMEM_TO_HMEM	2	/* local to host memcpy */
-#define DMA_DIR_MEM_TO_DEV	3
-#define DMA_DIR_DEV_TO_MEM	4
-#define DMA_DIR_DEV_TO_DEV	5
+/* types of DMA directions */
+enum dma_copy_dir {
+	DMA_DIR_MEM_TO_MEM = 0,	/* local memcpy */
+	DMA_DIR_HMEM_TO_LMEM,	/* host to local memcpy */
+	DMA_DIR_LMEM_TO_HMEM,	/* local to host memcpy */
+	DMA_DIR_MEM_TO_DEV,
+	DMA_DIR_DEV_TO_MEM,
+	DMA_DIR_DEV_TO_DEV,
+};
 
 /* DMA IRQ types */
 #define DMA_IRQ_TYPE_BLOCK	(1 << 0)
@@ -71,7 +73,7 @@ struct dma_sg_config {
 	uint32_t src_width;	/* in bytes */
 	uint32_t dest_width;	/* in bytes */
 	uint32_t burst_elems;
-	uint32_t direction;
+	enum dma_copy_dir direction;
 	uint32_t src_dev;
 	uint32_t dest_dev;
 	uint32_t cyclic;		/* circular buffer */
-- 
2.14.1