qmimodem: voicecall: Implement active call hangup

hangup_active iterates the current list of calls, looking for the first
active call and then calls release_specific.  This then sets up the
parameters for a call to QMI_VOICE_END_CALL, with the only parameters
being the call-id.

end_call_cb will then be called and will parse out the call-id and check
for success.

2 files changed, 83 insertions, 0 deletions

diff --git a/drivers/qmimodem/voice.h b/drivers/qmimodem/voice.h
index a524cf987..caedb079b 100644
--- a/drivers/qmimodem/voice.h
+++ b/drivers/qmimodem/voice.h
@@ -51,6 +51,7 @@ enum voice_commands {
 	QMI_VOICE_DIAL_CALL =			0x20,
 	QMI_VOICE_ALL_CALL_STATUS_IND =		0x2e,
 	QMI_VOICE_GET_ALL_CALL_INFO =		0x2f,
+	QMI_VOICE_END_CALL =			0x21,
 	QMI_VOICE_ANSWER_CALL =			0x22,
 	QMI_VOICE_SUPS_NOTIFICATION_IND =	0x32,
 	QMI_VOICE_SET_SUPS_SERVICE =		0x33,
diff --git a/drivers/qmimodem/voicecall.c b/drivers/qmimodem/voicecall.c
index d65fb59b2..24c4f3f17 100644
--- a/drivers/qmimodem/voicecall.c
+++ b/drivers/qmimodem/voicecall.c
@@ -527,6 +527,86 @@ error:
 	l_free(param);
 }
 
+static void end_call_cb(struct qmi_result *result, void *user_data)
+{
+	struct cb_data *cbd = user_data;
+	ofono_voicecall_cb_t cb = cbd->cb;
+	uint16_t error;
+	uint8_t call_id;
+
+	static const uint8_t RESULT_CALL_ID = 0x10;
+
+	if (qmi_result_set_error(result, &error)) {
+		DBG("QMI Error %d", error);
+		CALLBACK_WITH_FAILURE(cb, cbd->data);
+		return;
+	}
+
+	if (qmi_result_get_uint8(result, RESULT_CALL_ID, &call_id))
+		DBG("Received end call result with call id %d", call_id);
+
+	CALLBACK_WITH_SUCCESS(cb, cbd->data);
+}
+
+static void release_specific(struct ofono_voicecall *vc, int id,
+			ofono_voicecall_cb_t cb, void *data)
+{
+	struct voicecall_data *vd = ofono_voicecall_get_data(vc);
+	struct cb_data *cbd;
+	struct qmi_param *param = NULL;
+
+	static const uint8_t PARAM_CALL_ID = 0x01;
+
+	DBG("");
+
+	param = qmi_param_new();
+	cbd = cb_data_new(cb, data);
+	cbd->user = vc;
+
+	if (!qmi_param_append_uint8(param, PARAM_CALL_ID, id))
+		goto error;
+
+	if (qmi_service_send(vd->voice, QMI_VOICE_END_CALL, param, end_call_cb,
+			cbd, l_free) > 0)
+		return;
+
+error:
+	CALLBACK_WITH_FAILURE(cb, data);
+	l_free(cbd);
+	l_free(param);
+}
+
+static void hangup_active(struct ofono_voicecall *vc, ofono_voicecall_cb_t cb,
+				void *data)
+{
+	struct voicecall_data *vd = ofono_voicecall_get_data(vc);
+	struct ofono_call *call;
+	enum call_status active[] = {
+		CALL_STATUS_ACTIVE,
+		CALL_STATUS_DIALING,
+		CALL_STATUS_ALERTING,
+		CALL_STATUS_INCOMING,
+	};
+
+	DBG("");
+
+	for (uint32_t i = 0; i < L_ARRAY_SIZE(active); i++) {
+		call = l_queue_find(vd->call_list, ofono_call_match_by_status,
+			L_INT_TO_PTR(active[i]));
+
+		if (call)
+			break;
+	}
+
+	if (call == NULL) {
+		DBG("Can not find a call to hang up");
+		CALLBACK_WITH_FAILURE(cb, data);
+		return;
+	}
+
+	release_specific(vc, call->id, cb, data);
+}
+
 static void create_voice_cb(struct qmi_service *service, void *user_data)
 {
 	struct ofono_voicecall *vc = user_data;
@@ -594,6 +674,8 @@ static const struct ofono_voicecall_driver driver = {
 	.remove		= qmi_voicecall_remove,
 	.dial		= dial,
 	.answer		= answer,
+	.hangup_active  = hangup_active,
+	.release_specific  = release_specific,
 };
 
 OFONO_ATOM_DRIVER_BUILTIN(voicecall, qmimodem, &driver)