diff options
Diffstat (limited to 'drivers/dma/shdma.h')
| -rw-r--r-- | drivers/dma/shdma.h | 31 |
1 files changed, 9 insertions, 22 deletions
diff --git a/drivers/dma/shdma.h b/drivers/dma/shdma.h index 108f1cffb6f5..4021275a0a43 100644 --- a/drivers/dma/shdma.h +++ b/drivers/dma/shdma.h @@ -17,23 +17,10 @@ #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; - dma_cookie_t cookie; - int chunks; - int mark; -}; - struct device; struct sh_dmae_chan { @@ -45,19 +32,19 @@ struct sh_dmae_chan { struct device *dev; /* Channel device */ 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 */ - - /* Set chcr */ - int (*set_chcr)(struct sh_dmae_chan *sh_chan, u32 regs); - /* Set DMA resource */ - int (*set_dmars)(struct sh_dmae_chan *sh_chan, u16 res); }; 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) |