#include <linux/interrupt.h>
#include <linux/list.h>
+#define SH_DMAC_MAX_CHANNELS 6
+#define SH_DMA_SLAVE_NUMBER 256
#define SH_DMA_TCR_MAX 0x00FFFFFF /* 16MB */
-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_data_direction direction;
- dma_cookie_t cookie;
- int chunks;
- int mark;
-};
-
struct device;
struct sh_dmae_chan {
struct tasklet_struct tasklet; /* Tasklet */
int descs_allocated; /* desc count */
int xmit_shift; /* log_2(bytes_per_xfer) */
+ int irq;
int id; /* Raw id of this channel */
+ u32 __iomem *base;
char dev_id[16]; /* unique name per DMAC of channel */
};
struct sh_dmae_device {
struct dma_device common;
- struct sh_dmae_chan *chan[MAX_DMA_CHANNELS];
- struct sh_dmae_pdata pdata;
+ struct sh_dmae_chan *chan[SH_DMAC_MAX_CHANNELS];
+ struct sh_dmae_pdata *pdata;
+ u32 __iomem *chan_reg;
+ u16 __iomem *dmars;
};
#define to_sh_chan(chan) container_of(chan, struct sh_dmae_chan, common)