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>

2 files changed, 3 insertions, 2 deletions

diff --git a/include/linux/mISDNdsp.h b/include/linux/mISDNdsp.h
index 6b71d2dce508..2c483d45f141 100644
--- a/include/linux/mISDNdsp.h
+++ b/include/linux/mISDNdsp.h
@@ -12,7 +12,8 @@ struct mISDN_dsp_element {
         void    *(*new)(const char *arg);
         void    (*free)(void *p);
         void    (*process_tx)(void *p, unsigned char *data, int len);
-        void    (*process_rx)(void *p, unsigned char *data, int len);
+        void    (*process_rx)(void *p, unsigned char *data, int len,
+                        unsigned int txlen);
         int     num_args;
         struct mISDN_dsp_element_arg
                 *args;
diff --git a/include/linux/mISDNhw.h b/include/linux/mISDNhw.h
index 97ffdc1d3442..ce900f4c2458 100644
--- a/include/linux/mISDNhw.h
+++ b/include/linux/mISDNhw.h
@@ -185,7 +185,7 @@ extern int	dchannel_senddata(struct dchannel *, struct sk_buff *);
 extern int      bchannel_senddata(struct bchannel *, struct sk_buff *);
 extern void     recv_Dchannel(struct dchannel *);
 extern void     recv_Echannel(struct dchannel *, struct dchannel *);
-extern void     recv_Bchannel(struct bchannel *);
+extern void     recv_Bchannel(struct bchannel *, unsigned int id);
 extern void     recv_Dchannel_skb(struct dchannel *, struct sk_buff *);
 extern void     recv_Bchannel_skb(struct bchannel *, struct sk_buff *);
 extern void     confirm_Bsend(struct bchannel *bch);