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-rw-r--r--include/linux/platform_data/dma-dw.h27
1 files changed, 4 insertions, 23 deletions
diff --git a/include/linux/platform_data/dma-dw.h b/include/linux/platform_data/dma-dw.h
index d0c97da66e22..d8155c005242 100644
--- a/include/linux/platform_data/dma-dw.h
+++ b/include/linux/platform_data/dma-dw.h
@@ -8,10 +8,10 @@
8 * it under the terms of the GNU General Public License version 2 as 8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation. 9 * published by the Free Software Foundation.
10 */ 10 */
11#ifndef DW_DMAC_H 11#ifndef _PLATFORM_DATA_DMA_DW_H
12#define DW_DMAC_H 12#define _PLATFORM_DATA_DMA_DW_H
13 13
14#include <linux/dmaengine.h> 14#include <linux/device.h>
15 15
16/** 16/**
17 * struct dw_dma_slave - Controller-specific information about a slave 17 * struct dw_dma_slave - Controller-specific information about a slave
@@ -56,23 +56,4 @@ struct dw_dma_platform_data {
56 unsigned char data_width[4]; 56 unsigned char data_width[4];
57}; 57};
58 58
59/* DMA API extensions */ 59#endif /* _PLATFORM_DATA_DMA_DW_H */
60struct dw_cyclic_desc {
61 struct dw_desc **desc;
62 unsigned long periods;
63 void (*period_callback)(void *param);
64 void *period_callback_param;
65};
66
67struct dw_cyclic_desc *dw_dma_cyclic_prep(struct dma_chan *chan,
68 dma_addr_t buf_addr, size_t buf_len, size_t period_len,
69 enum dma_transfer_direction direction);
70void dw_dma_cyclic_free(struct dma_chan *chan);
71int dw_dma_cyclic_start(struct dma_chan *chan);
72void dw_dma_cyclic_stop(struct dma_chan *chan);
73
74dma_addr_t dw_dma_get_src_addr(struct dma_chan *chan);
75
76dma_addr_t dw_dma_get_dst_addr(struct dma_chan *chan);
77
78#endif /* DW_DMAC_H */