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Diffstat (limited to 'drivers/dma/shdma.h')
-rw-r--r--drivers/dma/shdma.h48
1 files changed, 19 insertions, 29 deletions
diff --git a/drivers/dma/shdma.h b/drivers/dma/shdma.h
index 2b4bc15a2c0a..153609a1e96c 100644
--- a/drivers/dma/shdma.h
+++ b/drivers/dma/shdma.h
@@ -13,48 +13,38 @@
#ifndef __DMA_SHDMA_H
#define __DMA_SHDMA_H
-#include <linux/device.h>
-#include <linux/dmapool.h>
#include <linux/dmaengine.h>
+#include <linux/interrupt.h>
+#include <linux/list.h>
+
+#include <asm/dmaengine.h>
#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 list_head tx_list;
- struct sh_dmae_regs hw;
- struct list_head node;
- struct dma_async_tx_descriptor async_tx;
- int mark;
-};
+struct device;
struct sh_dmae_chan {
dma_cookie_t completed_cookie; /* The maximum cookie completed */
- spinlock_t desc_lock; /* Descriptor operation lock */
- struct list_head ld_queue; /* Link descriptors queue */
- struct list_head ld_free; /* Link descriptors free */
- struct dma_chan common; /* DMA common channel */
- struct device *dev; /* Channel device */
+ spinlock_t desc_lock; /* Descriptor operation lock */
+ struct list_head ld_queue; /* Link descriptors queue */
+ struct list_head ld_free; /* Link descriptors free */
+ struct dma_chan common; /* DMA common channel */
+ struct device *dev; /* Channel device */
struct tasklet_struct tasklet; /* Tasklet */
- int descs_allocated; /* desc count */
+ int descs_allocated; /* desc count */
+ int xmit_shift; /* log_2(bytes_per_xfer) */
+ int irq;
int id; /* Raw id of this channel */
- 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);
+ 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)