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dma: shdma: convert to the shdma base library

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The shdma base library has originally been extracted from the shdma driver,
which now can be converted to actually use it.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
This commit is contained in:
Guennadi Liakhovetski
2012-05-09 17:09:21 +02:00
committed by Vinod Koul
parent b8373147ed
commit ce3a1ab742
3 changed files with 310 additions and 905 deletions
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33
include/linux/sh_dma.h
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@@ -13,34 +13,21 @@
#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 {
union {
unsigned int slave_id; /* Set by the platform */
struct shdma_slave shdma_slave;
};
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 */
struct device *dma_dev; /* Set by the platform */
const struct sh_dmae_slave_config *config; /* Set by the driver */
};
/*
* 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;