mISDN: Implement MISDN_CTRL_FILL_EMPTY for more drivers
MISDN_CTRL_FILL_EMPTY is a meachanism to send a fixed value (normally silence)
as long no data from upper layers is available. It can be used when recording
voice messages or with unidirectional protocols.
Signed-off-by: Karsten Keil <kkeil@linux-pingi.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/mISDNhw.h b/include/linux/mISDNhw.h
index 226886c..6211842 100644
--- a/include/linux/mISDNhw.h
+++ b/include/linux/mISDNhw.h
@@ -72,7 +72,7 @@
#define FLG_LL_OK 24
#define FLG_LL_CONN 25
#define FLG_DTMFSEND 26
-
+#define FLG_TX_EMPTY 27
/* workq events */
#define FLG_RECVQUEUE 30
#define FLG_PHCHANGE 31
@@ -142,6 +142,7 @@
struct layer1;
extern int l1_event(struct layer1 *, u_int);
+#define MISDN_BCH_FILL_SIZE 4
struct bchannel {
struct mISDNchannel ch;
@@ -153,6 +154,7 @@
int slot; /* multiport card channel slot */
struct timer_list timer;
/* receive data */
+ u8 fill[MISDN_BCH_FILL_SIZE];
struct sk_buff *rx_skb;
unsigned short maxlen;
unsigned short init_maxlen; /* initial value */