Restoring some code to sig_pri. Not sure if it is really needed.

Putting some DSP code back into sig_pri that was removed by the
chan_dahdi/sig_pri reorganization.


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@211392 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_dahdi.c

@@ -2614,6 +2614,7 @@ static struct sig_pri_callback dahdi_pri_callbacks =
 	.handle_dchan_exception = my_handle_dchan_exception,
 	.play_tone = my_pri_play_tone,
 	.set_echocanceller = my_set_echocanceller,
+	.dsp_reset_and_flush_digits = my_dsp_reset_and_flush_digits,
 	.lock_private = my_lock_private,
 	.unlock_private = my_unlock_private,
 	.new_ast_channel = my_new_pri_ast_channel,
@@ -8040,9 +8041,9 @@ static struct ast_channel *dahdi_new(struct dahdi_pvt *i, int state, int startpb
 				i->dsp = NULL;
 			if (i->dsp) {
 				i->dsp_features = features;
-#if defined(HAVE_SS7)
+#if defined(HAVE_PRI) || defined(HAVE_SS7)
-				/* We cannot do progress detection until receives PROGRESS message */
+				/* We cannot do progress detection until receive PROGRESS message */
-				if (i->outgoing && (i->sig == SIG_SS7)) {
+				if (i->outgoing && ((i->sig == SIG_PRI) || (i->sig == SIG_BRI) || (i->sig == SIG_BRI_PTMP) || (i->sig == SIG_SS7))) {
 					/* Remember requested DSP features, don't treat
 					   talking as ANSWER */
 					i->dsp_features = features & ~DSP_PROGRESS_TALK;

channels/sig_pri.c

@@ -192,6 +192,22 @@ static inline int pri_grab(struct sig_pri_chan *p, struct sig_pri_pri *pri)
 	return 0;
 }
 
+/*!
+ * \internal
+ * \brief Reset DTMF detector.
+ * \since 1.6.3
+ *
+ * \param p sig_pri channel structure.
+ *
+ * \return Nothing
+ */
+static void sig_pri_dsp_reset_and_flush_digits(struct sig_pri_chan *p)
+{
+	if (p->calls->dsp_reset_and_flush_digits) {
+		p->calls->dsp_reset_and_flush_digits(p->chan_pvt);
+	}
+}
+
 static int sig_pri_set_echocanceller(struct sig_pri_chan *p, int enable)
 {
 	if (p->calls->set_echocanceller)
@@ -618,6 +634,8 @@ static void *pri_ss_thread(void *data)
 
 	ast_verb(3, "Starting simple switch on '%s'\n", chan->name);
 
+	sig_pri_dsp_reset_and_flush_digits(p);
+
 	/* Now loop looking for an extension */
 	ast_copy_string(exten, p->exten, sizeof(exten));
 	len = strlen(exten);
@@ -652,6 +670,7 @@ static void *pri_ss_thread(void *data)
 	if (ast_exists_extension(chan, chan->context, exten, 1, p->cid_num)) {
 		/* Start the real PBX */
 		ast_copy_string(chan->exten, exten, sizeof(chan->exten));
+		sig_pri_dsp_reset_and_flush_digits(p);
 		sig_pri_set_echocanceller(p, 1);
 		ast_setstate(chan, AST_STATE_RING);
 		res = ast_pbx_run(chan);

channels/sig_pri.h

@@ -63,6 +63,7 @@ struct sig_pri_callback {
 
 	int (* const set_echocanceller)(void *pvt, int enable);
 	int (* const train_echocanceller)(void *pvt);
+	int (* const dsp_reset_and_flush_digits)(void *pvt);
 
 	struct ast_channel * (* const new_ast_channel)(void *pvt, int state, int startpbx, enum sig_pri_law law, int transfercapability, char *exten, const struct ast_channel *chan);