Commits for HardHDLC API in zaptel (#5313)

git-svn-id: http://svn.digium.com/svn/zaptel/trunk@887 5390a7c7-147a-4af0-8ec9-7488f05a26cb

1 files changed, 19 insertions, 0 deletions

diff --git a/zaptel.h b/zaptel.h
index 36e761e..a77c0a3 100644
--- a/zaptel.h
+++ b/zaptel.h
@@ -115,6 +115,7 @@
 #define ZT_SIG_DACS	(__ZT_SIG_DACS | ZT_SIG_CLEAR)	/* Cross connect */
 #define ZT_SIG_EM_E1	 (1 << 17)			/* E1 E&M Variation */
 #define ZT_SIG_DACS_RBS	 ((1 << 18) | __ZT_SIG_DACS)	/* Cross connect w/ RBS */
+#define ZT_SIG_HARDHDLC	((1 << 19) | ZT_SIG_CLEAR)
 
 /* tone flag values */
 #define	ZT_REVERSE_RXTONE 1  /* reverse polarity rx tone logic */
@@ -1209,6 +1210,7 @@ typedef enum {
 #define ZT_FLAG_PPP			(1 << 14)	/* PPP is available */
 #define ZT_FLAG_T1PPP			(1 << 15)
 #define ZT_FLAG_SIGFREEZE		(1 << 16)	/* Freeze signalling */
+#define ZT_FLAG_NOSTDTXRX		(1 << 17)	/* Do NOT do standard transmit and receive on every interrupt */
 
 struct zt_span {
 	spinlock_t lock;
@@ -1295,6 +1297,9 @@ struct zt_span {
 	/* Opt: Dacs the contents of chan2 into chan1 if possible */
 	int (*dacs)(struct zt_chan *chan1, struct zt_chan *chan2);
 
+	/* Opt: Used to tell an onboard HDLC controller that there is data ready to transmit */
+	void (*hdlc_hard_xmit)(struct zt_chan *chan);
+
 	/* Used by zaptel only -- no user servicable parts inside */
 	int spanno;			/* Span number for zaptel */
 	int offset;			/* Offset within a given card */
@@ -1357,6 +1362,20 @@ extern int zt_receive(struct zt_span *span);
 /* Prepare writechunk buffers on all channels for this span */
 extern int zt_transmit(struct zt_span *span);
 
+/* Abort the buffer currently being receive with event "event" */
+extern void zt_hdlc_abort(struct zt_chan *ss, int event);
+
+/* Indicate to zaptel that the end of frame was received and rotate buffers */
+extern void zt_hdlc_finish(struct zt_chan *ss);
+
+/* Put a chunk of data into the current receive buffer */
+extern void zt_hdlc_putbuf(struct zt_chan *ss, unsigned char *rxb, int bytes);
+
+/* Get a chunk of data from the current transmit buffer.  Returns -1 if no data
+ * is left to send, 0 if there is data remaining in the current message to be sent
+ * and 1 if the currently transmitted message is now done */
+extern int zt_hdlc_getbuf(struct zt_chan *ss, unsigned char *bufptr, unsigned int *size);
+
 
 /* Register a span.  Returns 0 on success, -1 on failure.  Pref-master is non-zero if
    we should have preference in being the master device */