libata-sff: ap->[last_]ctl are SFF specific

[safe/jmp/linux-2.6] / include / linux / dw_dmac.h

diff --git a/include/linux/dw_dmac.h b/include/linux/dw_dmac.h
index d797dde..c8aad71 100644 (file)
--- a/include/linux/dw_dmac.h
+++ b/include/linux/dw_dmac.h
@@ -74,4 +74,23 @@ struct dw_dma_slave {
 #define DWC_CFGL_HS_DST_POL    (1 << 18)       /* dst handshake active low */
 #define DWC_CFGL_HS_SRC_POL    (1 << 19)       /* src handshake active low */
 
+/* DMA API extensions */
+struct dw_cyclic_desc {
+       struct dw_desc  **desc;
+       unsigned long   periods;
+       void            (*period_callback)(void *param);
+       void            *period_callback_param;
+};
+
+struct dw_cyclic_desc *dw_dma_cyclic_prep(struct dma_chan *chan,
+               dma_addr_t buf_addr, size_t buf_len, size_t period_len,
+               enum dma_data_direction direction);
+void dw_dma_cyclic_free(struct dma_chan *chan);
+int dw_dma_cyclic_start(struct dma_chan *chan);
+void dw_dma_cyclic_stop(struct dma_chan *chan);
+
+dma_addr_t dw_dma_get_src_addr(struct dma_chan *chan);
+
+dma_addr_t dw_dma_get_dst_addr(struct dma_chan *chan);
+
 #endif /* DW_DMAC_H */