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authorGuennadi Liakhovetski <g.liakhovetski@gmx.de>2012-05-09 19:09:21 +0400
committerVinod Koul <vinod.koul@linux.intel.com>2012-07-13 07:43:08 +0400
commitce3a1ab74264b860450709e4bd0dcfc2d0bfc7f8 (patch)
tree445fdd53ae7775810d0b05ca90c392ee25367889 /include/linux/sh_dma.h
parentb8373147ed3ca01a968d81f22688f2836a9aeb6b (diff)
downloadlinux-ce3a1ab74264b860450709e4bd0dcfc2d0bfc7f8.tar.xz
dma: shdma: convert to the shdma base library
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>
Diffstat (limited to 'include/linux/sh_dma.h')
-rw-r--r--include/linux/sh_dma.h33
1 files changed, 10 insertions, 23 deletions
diff --git a/include/linux/sh_dma.h b/include/linux/sh_dma.h
index e081e8e8d109..7c8ca41e60e6 100644
--- a/include/linux/sh_dma.h
+++ b/include/linux/sh_dma.h
@@ -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;