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Blackfin arch: Add DMA API to set curr descriptor address

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This API is necessary for DMA descriptor array mode.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
This commit is contained in:
Sonic Zhang
2007-08-05 16:14:58 +08:00
committed by Bryan Wu
parent 2cbfe10743
commit 8a26ac7043
2 changed files with 15 additions and 1 deletions
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include/asm-blackfin/dma.h
+1
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@@ -152,6 +152,7 @@ struct dma_channel {
/* functions to set register mode */
void set_dma_start_addr(unsigned int channel, unsigned long addr);
void set_dma_next_desc_addr(unsigned int channel, unsigned long addr);
void set_dma_curr_desc_addr(unsigned int channel, unsigned long addr);
void set_dma_x_count(unsigned int channel, unsigned short x_count);
void set_dma_x_modify(unsigned int channel, short x_modify);
void set_dma_y_count(unsigned int channel, unsigned short y_count);