1 files changed, 57 insertions, 0 deletions
diff --git a/arch/arm/mach-s3c64xx/include/mach/dma.h b/arch/arm/mach-s3c64xx/include/mach/dma.h
index 6723860748be..0a5d9268a23e 100644
--- a/arch/arm/mach-s3c64xx/include/mach/dma.h
+++ b/arch/arm/mach-s3c64xx/include/mach/dma.h
@@ -67,4 +67,61 @@ static __inline__ bool s3c_dma_has_circular(void)
 
 #include <plat/dma.h>
 
+#define DMACH_LOW_LEVEL (1<<28) /* use this to specifiy hardware ch no */
+
+struct s3c64xx_dma_buff;
+
+/** s3c64xx_dma_buff - S3C64XX DMA buffer descriptor
+ * @next: Pointer to next buffer in queue or ring.
+ * @pw: Client provided identifier
+ * @lli: Pointer to hardware descriptor this buffer is associated with.
+ * @lli_dma: Hardare address of the descriptor.
+ */
+struct s3c64xx_dma_buff {
+	struct s3c64xx_dma_buff *next;
+
+	void			*pw;
+	struct pl080s_lli	*lli;
+	dma_addr_t		 lli_dma;
+};
+
+struct s3c64xx_dmac;
+
+struct s3c2410_dma_chan {
+	unsigned char		 number;      /* number of this dma channel */
+	unsigned char		 in_use;      /* channel allocated */
+	unsigned char		 bit;	      /* bit for enable/disable/etc */
+	unsigned char		 hw_width;
+	unsigned char		 peripheral;
+
+	unsigned int		 flags;
+	enum s3c2410_dmasrc	 source;
+
+
+	dma_addr_t		dev_addr;
+
+	struct s3c2410_dma_client *client;
+	struct s3c64xx_dmac	*dmac;		/* pointer to controller */
+
+	void __iomem		*regs;
+
+	/* cdriver callbacks */
+	s3c2410_dma_cbfn_t	 callback_fn;	/* buffer done callback */
+	s3c2410_dma_opfn_t	 op_fn;		/* channel op callback */
+
+	/* buffer list and information */
+	struct s3c64xx_dma_buff	*curr;		/* current dma buffer */
+	struct s3c64xx_dma_buff	*next;		/* next buffer to load */
+	struct s3c64xx_dma_buff	*end;		/* end of queue */
+
+	/* note, when channel is running in circular mode, curr is the
+	 * first buffer enqueued, end is the last and curr is where the
+	 * last buffer-done event is set-at. The buffers are not freed
+	 * and the last buffer hardware descriptor points back to the
+	 * first.
+	 */
+};
+
+#include <plat/dma-core.h>
+
 #endif /* __ASM_ARCH_IRQ_H */