diff options
| author | Ingo Molnar <mingo@elte.hu> | 2009-04-07 11:15:40 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-04-07 11:15:40 +0200 |
| commit | 5e34437840d33554f69380584311743b39e8fbeb (patch) | |
| tree | e081135619ee146af5efb9ee883afca950df5757 /include/linux/dw_dmac.h | |
| parent | 77d05632baee21b1cef8730d7c06aa69601e4dca (diff) | |
| parent | d508afb437daee7cf07da085b635c44a4ebf9b38 (diff) | |
Merge branch 'linus' into core/softlockup
Conflicts:
kernel/sysctl.c
Diffstat (limited to 'include/linux/dw_dmac.h')
| -rw-r--r-- | include/linux/dw_dmac.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/include/linux/dw_dmac.h b/include/linux/dw_dmac.h index d797dde247f..c8aad713a04 100644 --- 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 */ |