#ifndef SH_DMA_H
#define SH_DMA_H
-#include <linux/list.h>
#include <linux/dmaengine.h>
+#include <linux/list.h>
+#include <linux/shdma-base.h>
+#include <linux/types.h>
+
+struct device;
/* Used by slave DMA clients to request DMA to/from a specific peripheral */
struct sh_dmae_slave {
- unsigned int slave_id; /* Set by the platform */
- struct device *dma_dev; /* Set by the platform */
- const struct sh_dmae_slave_config *config; /* Set by the driver */
-};
-
-struct sh_dmae_regs {
- u32 sar; /* SAR / source address */
- u32 dar; /* DAR / destination address */
- u32 tcr; /* TCR / transfer count */
-};
-
-struct sh_desc {
- struct sh_dmae_regs hw;
- struct list_head node;
- struct dma_async_tx_descriptor async_tx;
- enum dma_transfer_direction direction;
- dma_cookie_t cookie;
- size_t partial;
- int chunks;
- int mark;
+ struct shdma_slave shdma_slave; /* Set by the platform */
};
+/*
+ * Supplied by platforms to specify, how a DMA channel has to be configured for
+ * a certain peripheral
+ */
struct sh_dmae_slave_config {
- unsigned int slave_id;
- dma_addr_t addr;
- u32 chcr;
- char mid_rid;
+ int slave_id;
+ dma_addr_t addr;
+ u32 chcr;
+ char mid_rid;
};
struct sh_dmae_channel {
#define CHCR_TE 0x00000002
#define CHCR_IE 0x00000004
+bool shdma_chan_filter(struct dma_chan *chan, void *arg);
+
#endif