From: Moises Silva <moy@sangoma.com>
Date: Thu, 24 Jun 2010 23:48:55 +0000 (-0400)
Subject: freetdm: re-enable hw dtmf on channel destroy if needed
X-Git-Tag: v1.2-rc1~565^2~56
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c31abb3ed058a54f054a62c5cb58c23fd83bf1cc;p=thirdparty%2Ffreeswitch.git

freetdm: re-enable hw dtmf on channel destroy if needed
---

diff --git a/libs/freetdm/src/ftmod/ftmod_wanpipe/ftmod_wanpipe.c b/libs/freetdm/src/ftmod/ftmod_wanpipe/ftmod_wanpipe.c
index 539d411884..914e53e730 100644
--- a/libs/freetdm/src/ftmod/ftmod_wanpipe/ftmod_wanpipe.c
+++ b/libs/freetdm/src/ftmod/ftmod_wanpipe/ftmod_wanpipe.c
@@ -1185,6 +1185,19 @@ static FIO_CHANNEL_DESTROY_FUNCTION(wanpipe_channel_destroy)
 #endif
 
 	if (ftdmchan->sockfd != FTDM_INVALID_SOCKET) {
+		/* enable HW DTMF. As odd as it seems. Why enable when the channel is being destroyed and won't be used anymore?
+		 * because that way we can transfer the DTMF state back to the driver, if we're being restarted we will set again
+		 * the FEATURE_DTMF flag and use HW DTMF, if we don't enable here, then on module restart we won't see
+		 * HW DTMF available and will use software */
+		if (ftdm_channel_test_feature(ftdmchan, FTDM_CHANNEL_FEATURE_DTMF_DETECT)) {
+			wanpipe_tdm_api_t tdm_api;
+			int err;
+			memset(&tdm_api, 0, sizeof(tdm_api));
+			err = sangoma_tdm_enable_dtmf_events(ftdmchan->sockfd, &tdm_api);
+			if (err) {
+				ftdm_log_chan_msg(ftdmchan, FTDM_LOG_WARNING, "Failed enabling Sangoma HW DTMF failed on channel destroy\n");
+			}
+		}
 		sangoma_close(&ftdmchan->sockfd);
 	}