Add basic telephony binding

Adds a basic telephony binding which supports dial and hangup
operations via ofono. Bluetooth HFP is the only modem type supported
now, with SIM support expected in the future.

AGL-Bug: SPEC-597
Change-Id: Icb302533c368fe37a181601c30f49294ad292a6b
Signed-off-by: Matt Porter <mporter@konsulko.com>

1 files changed, 150 insertions, 0 deletions

diff --git a/telephony-binding/telephony-binding.c b/telephony-binding/telephony-binding.c
new file mode 100644
index 0000000..6edecd3
--- /dev/null
+++ b/telephony-binding/telephony-binding.c
@@ -0,0 +1,150 @@
+/*
+ * Copyright (C) 2017 Konsulko Group
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define _GNU_SOURCE
+
+#include <glib.h>
+#include <json-c/json.h>
+#include <string.h>
+
+#include <afb/afb-binding.h>
+#include <afb/afb-service-itf.h>
+
+#include "ofono_manager.h"
+#include "ofono_voicecallmanager.h"
+#include "ofono_voicecall.h"
+
+static const struct afb_binding_interface *interface;
+
+static OrgOfonoVoiceCallManager *vcm;
+static gchar *incoming_call;
+static gchar *voice_call;
+
+static void dial(struct afb_req request)
+{
+	struct json_object *query, *val, *ret;
+	const char *number;
+
+	query = afb_req_json(request);
+	json_object_object_get_ex(query, "value", &val);
+	if (json_object_is_type(val, json_type_string)) {
+		number = json_object_get_string(val);
+		if (voice_call) {
+			ERROR(interface, "dial: cannot dial with active call");
+			afb_req_fail(request, "active call", NULL);
+		} else {
+			DEBUG(interface, "dial: %s...\n", number);
+			voice_call = ofono_voicecallmanager_dial(vcm, (gchar *)number, "");
+			DEBUG(interface, "voice_call: %s\n", voice_call);
+			if (voice_call) {
+				ret = json_object_new_object();
+				json_object_object_add(ret, "VoiceCall", json_object_new_string(voice_call));
+				afb_req_success(request, ret, NULL);
+			} else {
+				ERROR(interface, "dial: failed to dial number\n");
+				afb_req_fail(request, "failed dial", NULL);
+			}
+		}
+	} else {
+		ERROR(interface, "dial: no phone number parameter\n");
+		afb_req_fail(request, "no number", NULL);
+	}
+}
+
+static void hangup(struct afb_req request)
+{
+	if (voice_call) {
+		DEBUG(interface, "Hangup voice call: %s\n", voice_call);
+		ofono_hangup(voice_call);
+		afb_req_success(request, NULL, NULL);
+		voice_call = NULL;
+	} else {
+		ERROR(interface, "Hangup: no active call");
+		afb_req_fail(request, "failed hangup", NULL);
+	}
+}
+
+
+static void incoming_call_cb(OrgOfonoVoiceCallManager *manager, gchar *op, gchar *clip) {
+	WARNING(interface, "Incoming call from %s\n", clip);
+	incoming_call = strdup(op);
+}
+
+static void *main_loop_thread(void *unused)
+{
+	GMainLoop *loop = g_main_loop_new(NULL, FALSE);
+	g_main_loop_run(loop);
+	return NULL;
+}
+
+static int ofono_init(void)
+{
+	pthread_t tid;
+	int ret = 0;
+
+	/* Start the main loop thread */
+	pthread_create(&tid, NULL, main_loop_thread, NULL);
+
+	ofono_manager_init(interface);
+	const gchar *modem_path = ofono_manager_get_default_modem_path();
+	DEBUG(interface, "modem_path: %s\n", modem_path);
+	vcm = ofono_voicecallmanager_init(interface, modem_path, incoming_call_cb);
+	if (!vcm) {
+		ERROR(interface, "Failed to initialize voice call manager\n");
+		ret = -1;
+	}
+
+	return ret;
+}
+
+static const struct afb_verb_desc_v1 verbs[]= {
+	{
+		.name		= "dial",
+		.session	= AFB_SESSION_NONE,
+		.callback	= dial,
+		.info		= "Dial phone"
+	},
+	{
+		.name		= "hangup",
+		.session	= AFB_SESSION_NONE,
+		.callback	= hangup,
+		.info		= "Hangup phone"
+	},
+	{NULL}
+};
+
+static const struct afb_binding binding_desc = {
+	.type = AFB_BINDING_VERSION_1,
+	.v1 = {
+		.info = "telephony service",
+		.prefix = "telephony",
+		.verbs = verbs
+	}
+};
+
+const struct afb_binding *afbBindingV1Register (const struct afb_binding_interface *itf)
+{
+	interface = itf;
+
+	return &binding_desc;
+}
+
+int afbBindingV1ServiceInit(struct afb_service service)
+{
+	DEBUG(interface, "Initializing telephony service\n");
+
+	return ofono_init();
+}