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>

4 files changed, 7 insertions, 6 deletions

diff --git a/drivers/isdn/mISDN/dsp.h b/drivers/isdn/mISDN/dsp.h
index 0a4a362..4a1c444d 100644
--- a/drivers/isdn/mISDN/dsp.h
+++ b/drivers/isdn/mISDN/dsp.h
@@ -262,5 +262,5 @@ extern int  dsp_pipeline_build(struct dsp_pipeline *pipeline, const char *cfg);
 extern void dsp_pipeline_process_tx(struct dsp_pipeline *pipeline, u8 *data,
 		int len);
 extern void dsp_pipeline_process_rx(struct dsp_pipeline *pipeline, u8 *data,
-		int len);
+		int len, unsigned int txlen);
 
diff --git a/drivers/isdn/mISDN/dsp_core.c b/drivers/isdn/mISDN/dsp_core.c
index 3083338..1c49368 100644
--- a/drivers/isdn/mISDN/dsp_core.c
+++ b/drivers/isdn/mISDN/dsp_core.c
@@ -710,7 +710,7 @@ dsp_function(struct mISDNchannel *ch,  struct sk_buff *skb)
 		/* pipeline */
 		if (dsp->pipeline.inuse)
 			dsp_pipeline_process_rx(&dsp->pipeline, skb->data,
-				skb->len);
+				skb->len, hh->id);
 		/* change volume if requested */
 		if (dsp->rx_volume)
 			dsp_change_volume(skb, dsp->rx_volume);
diff --git a/drivers/isdn/mISDN/dsp_pipeline.c b/drivers/isdn/mISDN/dsp_pipeline.c
index 18cf87c..ac61f19 100644
--- a/drivers/isdn/mISDN/dsp_pipeline.c
+++ b/drivers/isdn/mISDN/dsp_pipeline.c
@@ -347,7 +347,8 @@ void dsp_pipeline_process_tx(struct dsp_pipeline *pipeline, u8 *data, int len)
 			entry->elem->process_tx(entry->p, data, len);
 }
 
-void dsp_pipeline_process_rx(struct dsp_pipeline *pipeline, u8 *data, int len)
+void dsp_pipeline_process_rx(struct dsp_pipeline *pipeline, u8 *data, int len,
+	unsigned int txlen)
 {
 	struct dsp_pipeline_entry *entry;
 
@@ -356,7 +357,7 @@ void dsp_pipeline_process_rx(struct dsp_pipeline *pipeline, u8 *data, int len)
 
 	list_for_each_entry_reverse(entry, &pipeline->list, list)
 		if (entry->elem->process_rx)
-			entry->elem->process_rx(entry->p, data, len);
+			entry->elem->process_rx(entry->p, data, len, txlen);
 }
 
 
diff --git a/drivers/isdn/mISDN/hwchannel.c b/drivers/isdn/mISDN/hwchannel.c
index ab1168a..0481a0c 100644
--- a/drivers/isdn/mISDN/hwchannel.c
+++ b/drivers/isdn/mISDN/hwchannel.c
@@ -185,13 +185,13 @@ recv_Echannel(struct dchannel *ech, struct dchannel *dch)
 EXPORT_SYMBOL(recv_Echannel);
 
 void
-recv_Bchannel(struct bchannel *bch)
+recv_Bchannel(struct bchannel *bch, unsigned int id)
 {
 	struct mISDNhead *hh;
 
 	hh = mISDN_HEAD_P(bch->rx_skb);
 	hh->prim = PH_DATA_IND;
-	hh->id = MISDN_ID_ANY;
+	hh->id = id;
 	if (bch->rcount >= 64) {
 		printk(KERN_WARNING "B-channel %p receive queue overflow, "
 			"fushing!\n", bch);