[PATCH 3/7] emulator: add RING for HFP AG

[=?unknown-8bit?q?Fr=C3=A9d=C3=A9ric?= Danis <frederic.danis@linux.intel.com>]

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---
 src/emulator.c |   45 +++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 45 insertions(+), 0 deletions(-)

diff --git a/src/emulator.c b/src/emulator.c
index 2707592..104693d 100644
--- a/src/emulator.c
+++ b/src/emulator.c
@@ -37,6 +37,8 @@
 #define DUN_DNS_SERVER_1       "10.10.10.10"
 #define DUN_DNS_SERVER_2       "10.10.10.11"
 
+#define RING_TIMEOUT 3
+
 struct ofono_emulator {
 	struct ofono_atom *atom;
 	enum ofono_emulator_type type;
@@ -49,6 +51,8 @@ struct ofono_emulator {
 	int events_mode;
 	gboolean events_ind;
 	GSList *indicators;
+	guint ring;
+	gboolean active_call;
 };
 
 struct indicator {
@@ -177,6 +181,18 @@ error:
 	g_at_server_send_final(em->server, G_AT_SERVER_RESULT_ERROR);
 }
 
+static gboolean ring_cb(gpointer user_data)
+{
+	struct ofono_emulator *em = user_data;
+
+	if (em->type == OFONO_EMULATOR_TYPE_HFP && em->slc == FALSE)
+		return TRUE;
+
+	g_at_server_send_unsolicited(em->server, "RING");
+
+	return TRUE;
+}
+
 static void brsf_cb(GAtServer *server, GAtServerRequestType type,
 			GAtResult *result, gpointer user_data)
 {
@@ -418,6 +434,11 @@ static void emulator_unregister(struct ofono_atom *atom)
 		em->source = 0;
 	}
 
+	if (em->ring) {
+		g_source_remove(em->ring);
+		em->ring = 0;
+	}
+
 	for (l = em->indicators; l; l = l->next) {
 		struct indicator *ind = l->data;
 
@@ -697,11 +718,35 @@ void ofono_emulator_set_indicator(struct ofono_emulator *em,
 
 		ind->value = value;
 
+		if (g_str_equal(name, OFONO_EMULATOR_IND_CALL) == TRUE)
+			em->active_call = value;
+
 		if (em->events_mode == 3 && em->events_ind && em->slc) {
 			sprintf(buf, "+CIEV: %d,%d", i, ind->value);
 			g_at_server_send_info(em->server, buf, TRUE);
 		}
 
+		/*
+		 * Ring timer should be started when callsetup indicator
+		 * is set to Incoming, but only if there is no active or held
+		 * call (active indicator set to 1)
+		 * It should be stopped for all other values of callsetup
+		 */
+		if (g_str_equal(name, OFONO_EMULATOR_IND_CALLSETUP) == TRUE) {
+			if (value == OFONO_EMULATOR_CALLSETUP_INCOMING &&
+					!em->active_call && em->ring == 0) {
+				ring_cb(em);
+				em->ring = g_timeout_add_seconds(RING_TIMEOUT,
+								ring_cb, em);
+			}
+
+			if (value != OFONO_EMULATOR_CALLSETUP_INCOMING &&
+					em->ring) {
+				g_source_remove(em->ring);
+				em->ring = 0;
+			}
+		}
+
 		return;
 	}
 }
-- 
1.7.1