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authorAndreas Eversberg <andreas@eversberg.eu>2009-05-22 11:04:46 +0000
committerDavid S. Miller <davem@davemloft.net>2009-05-25 00:51:31 -0700
commit7cfa153dd709f15188fe84b78ae76387841fe17b (patch)
tree35df67cef71397759e9fad76fb878fa439f26f45 /drivers/isdn/hardware/mISDN/hfc_multi.h
parentmISDN: DSP now uses ring buffer for echo canceler (diff)
downloadlinux-dev-7cfa153dd709f15188fe84b78ae76387841fe17b.tar.xz
linux-dev-7cfa153dd709f15188fe84b78ae76387841fe17b.zip
mISDN: Echo canceler now gets delay information from hardware
Added tx-fifo information for calculation of current delay to sync tx and rx streams for echo canceler. Signed-off-by: Andreas Eversberg <andreas@eversberg.eu> Signed-off-by: Karsten Keil <keil@b1-systems.de> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/isdn/hardware/mISDN/hfc_multi.h')
-rw-r--r--drivers/isdn/hardware/mISDN/hfc_multi.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/isdn/hardware/mISDN/hfc_multi.h b/drivers/isdn/hardware/mISDN/hfc_multi.h
index 5765e1962911..c4878cc712c9 100644
--- a/drivers/isdn/hardware/mISDN/hfc_multi.h
+++ b/drivers/isdn/hardware/mISDN/hfc_multi.h
@@ -44,6 +44,7 @@ struct hfc_chan {
int conf; /* conference setting of TX slot */
int txpending; /* if there is currently data in */
/* the FIFO 0=no, 1=yes, 2=splloop */
+ int Zfill; /* rx-fifo level on last hfcmulti_tx */
int rx_off; /* set to turn fifo receive off */
int coeff_count; /* curren coeff block */
s32 *coeff; /* memory pointer to 8 coeff blocks */