1 files changed, 78 insertions, 0 deletions
diff --git a/src/host/layer23/src/mobile/voice.c b/src/host/layer23/src/mobile/voice.c
new file mode 100644
index 00000000..b7678337
--- /dev/null
+++ b/src/host/layer23/src/mobile/voice.c
@@ -0,0 +1,78 @@
+/*
+ * (C) 2010 by Andreas Eversberg <jolly@eversberg.eu>
+ *
+ * All Rights Reserved
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+
+#include <stdlib.h>
+
+#include <osmocom/core/msgb.h>
+
+#include <osmocom/bb/common/osmocom_data.h>
+#include <osmocom/bb/mobile/mncc.h>
+#include <osmocom/bb/mobile/voice.h>
+
+
+/*
+ * receive voice
+ */
+
+static int gsm_recv_voice(struct osmocom_ms *ms, struct msgb *msg)
+{
+	struct gsm_data_frame *mncc;
+
+	/* distribute and then free */
+	if (ms->mncc_entity.mncc_recv && ms->mncc_entity.ref) {
+		/* push mncc header in front of data */
+		mncc = (struct gsm_data_frame *)
+			msgb_push(msg, sizeof(struct gsm_data_frame));
+		mncc->msg_type = GSM_TCHF_FRAME;
+		mncc->callref =  ms->mncc_entity.ref;
+		ms->mncc_entity.mncc_recv(ms, mncc->msg_type, mncc);
+	}
+
+	msgb_free(msg);
+	return 0;
+}
+
+/*
+ * send voice
+ */
+int gsm_send_voice(struct osmocom_ms *ms, struct gsm_data_frame *data)
+{
+	struct msgb *nmsg;
+
+	nmsg = msgb_alloc_headroom(33 + 64, 64, "TCH/F");
+	if (!nmsg)
+		return -ENOMEM;
+	nmsg->l2h = msgb_put(nmsg, 33);
+	memcpy(nmsg->l2h, data->data, 33);
+
+	return gsm48_rr_tx_voice(ms, nmsg);
+}
+
+/*
+ * init
+ */
+
+int gsm_voice_init(struct osmocom_ms *ms)
+{
+	ms->l1_entity.l1_traffic_ind = gsm_recv_voice;
+
+	return 0;
+}