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authorRabin Vincent <rabin.vincent@stericsson.com>2011-01-25 11:18:35 +0100
committerDan Williams <dan.j.williams@intel.com>2011-01-30 22:27:21 -0800
commit0c842b551063c5f7382ac9b457992f3b34972801 (patch)
treeda606f382493e6cf3540b4245b86a784a78e46b4 /drivers/dma/ste_dma40_ll.h
parent86eb5fb61125e4646c9447a1f2ce130817dab34e (diff)
downloadblackbird-op-linux-0c842b551063c5f7382ac9b457992f3b34972801.tar.gz
blackbird-op-linux-0c842b551063c5f7382ac9b457992f3b34972801.zip
dma40: cyclic xfer support
Support cyclic transfers, which are useful for ALSA drivers. Acked-by: Per Forlin <per.forlin@stericsson.com> Acked-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/dma/ste_dma40_ll.h')
-rw-r--r--drivers/dma/ste_dma40_ll.h9
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/dma/ste_dma40_ll.h b/drivers/dma/ste_dma40_ll.h
index 59e72f0cc901..195ee65ee7f3 100644
--- a/drivers/dma/ste_dma40_ll.h
+++ b/drivers/dma/ste_dma40_ll.h
@@ -296,6 +296,8 @@ struct d40_def_lcsp {
enum d40_lli_flags {
LLI_ADDR_INC = 1 << 0,
LLI_TERM_INT = 1 << 1,
+ LLI_CYCLIC = 1 << 2,
+ LLI_LAST_LINK = 1 << 3,
};
void d40_phy_cfg(struct stedma40_chan_cfg *cfg,
@@ -314,7 +316,8 @@ int d40_phy_sg_to_lli(struct scatterlist *sg,
dma_addr_t lli_phys,
u32 reg_cfg,
struct stedma40_half_channel_info *info,
- struct stedma40_half_channel_info *otherinfo);
+ struct stedma40_half_channel_info *otherinfo,
+ unsigned long flags);
/* Logical channels */
@@ -328,11 +331,11 @@ int d40_log_sg_to_lli(struct scatterlist *sg,
void d40_log_lli_lcpa_write(struct d40_log_lli_full *lcpa,
struct d40_log_lli *lli_dst,
struct d40_log_lli *lli_src,
- int next);
+ int next, unsigned int flags);
void d40_log_lli_lcla_write(struct d40_log_lli *lcla,
struct d40_log_lli *lli_dst,
struct d40_log_lli *lli_src,
- int next);
+ int next, unsigned int flags);
#endif /* STE_DMA40_LLI_H */
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