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>

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 */