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/*
* Copyright (C) 2018 "IoT.bzh"
* Author Jonathan Aillet <jonathan.aillet@iot.bzh>
*
* 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 <stdio.h>
#include <string.h>
#include <stdbool.h>
#include <wrap-json.h>
#include <ctl-plugin.h>
#include "hal-bt.h"
#include "hal-bt-cb.h"
#include "hal-bt-data.h"
// Local (static) Hal manager data structure
static struct HalBtPluginData localHalBtPluginData;
CTLP_CAPI_REGISTER(HAL_BT_PLUGIN_NAME)
// Call at initialisation time
CTLP_ONLOAD(plugin, callbacks)
{
AFB_ApiNotice(plugin->api, "Hal-Bt Plugin Register: uid='%s' 'info='%s'", plugin->uid, plugin->info);
memset(&localHalBtPluginData, '\0', sizeof(localHalBtPluginData));
AFB_RequireApi(plugin->api, BT_MANAGER_API, 1);
/* TDB JAI :
- Register 'init' plugin function (HAL_BT_PLUGIN_NAME#init) as onload action here (to avoid adding it in json)
- Register 'event' plugin function (HAL_BT_PLUGIN_NAME#event) as action for BT_MANAGER_API#BT_MANAGER_DEVICE_UPDATE_EVENT event here (to avoid adding it in json)
*/
return 0;
}
// Call at onload time
CTLP_CAPI(init, source, argsJ, queryJ)
{
unsigned int err;
struct json_object *toSendJ, *returnedJ, *returnedBtList = NULL;
AFB_ApiNotice(source->api, "Initializing HAL-BT plugin");
// Loading hal BT plugin specific verbs
if(afb_dynapi_add_verb(source->api,
HAL_BT_GET_STREAMING_STATUS_VERB,
"Get Bluetooth streaming status",
HalBtGetStreamingStatus,
(void *) &localHalBtPluginData,
NULL,
0)) {
AFB_ApiError(source->api, "%s: error while creating verb for bluetooth plugin : '%s'", __func__, HAL_BT_GET_STREAMING_STATUS_VERB);
return -1;
}
if(afb_dynapi_add_verb(source->api,
HAL_BT_SET_STREAMING_STATUS_VERB,
"Set Bluetooth streaming status",
HalBtSetStreamingStatus,
(void *) &localHalBtPluginData,
NULL,
0)) {
AFB_ApiError(source->api, "%s: error while creating verb for bluetooth plugin : '%s'", __func__, HAL_BT_SET_STREAMING_STATUS_VERB);
return -2;
}
if(afb_dynapi_add_verb(source->api,
HAL_BT_GET_CONNECTED_DEVICES_VERB,
"Get connected Bluetooth devices list",
HalBtGetConnectedBluetoothDevices,
(void *) &localHalBtPluginData,
NULL,
0)) {
AFB_ApiError(source->api, "%s: error while creating verb for bluetooth plugin : '%s'", __func__, HAL_BT_GET_CONNECTED_DEVICES_VERB);
return -3;
}
if(afb_dynapi_add_verb(source->api,
HAL_BT_GET_SELECTED_DEVICE_VERB,
"Get selected Bluetooth device",
HalBtGetSelectedBluetoothDevice,
(void *) &localHalBtPluginData,
NULL,
0)) {
AFB_ApiError(source->api, "%s: error while creating verb for bluetooth plugin : '%s'", __func__, HAL_BT_GET_SELECTED_DEVICE_VERB);
return -4;
}
if(afb_dynapi_add_verb(source->api,
HAL_BT_SET_SELECTED_DEVICE_VERB,
"Set selected Bluetooth device",
HalBtSetSelectedBluetoothDevice,
(void *) &localHalBtPluginData,
NULL,
0)) {
AFB_ApiError(source->api, "%s: error while creating verb for bluetooth plugin : '%s'", __func__, HAL_BT_SET_SELECTED_DEVICE_VERB);
return -5;
}
// Register to Bluetooth manager
wrap_json_pack(&toSendJ, "{s:s}", "value", BT_MANAGER_DEVICE_UPDATE_EVENT);
if(AFB_ServiceSync(source->api, BT_MANAGER_API, BT_MANAGER_SUBSCRIBE_VERB, toSendJ, &returnedJ)) {
AFB_ApiError(source->api,
"Error during call to verb %s of %s api",
BT_MANAGER_API,
BT_MANAGER_SUBSCRIBE_VERB);
return -6;
}
else if(! wrap_json_unpack(returnedJ, "{s:{s:s}}", "request", "info", NULL)) {
AFB_ApiError(source->api,
"Couldn't subscribe to event '%s' during call to verb '%s' of api '%s'",
BT_MANAGER_DEVICE_UPDATE_EVENT,
BT_MANAGER_SUBSCRIBE_VERB,
BT_MANAGER_API);
return -7;
}
if(AFB_ServiceSync(source->api, BT_MANAGER_API, BT_MANAGER_GET_DEVICES_VERB, NULL, &returnedJ)) {
AFB_ApiError(source->api,
"Error during call to verb %s of %s api",
BT_MANAGER_API,
BT_MANAGER_GET_DEVICES_VERB);
return -8;
}
else if(wrap_json_unpack(returnedJ, "{s:{s:o}}", "response", "list", &returnedBtList)) {
AFB_ApiError(source->api,
"Couldn't get bluetooth device list during call to verb '%s' of api '%s'",
BT_MANAGER_GET_DEVICES_VERB,
BT_MANAGER_API);
return -9;
}
if((err = HalBtDataHandleReceivedMutlipleBtDeviceData(&localHalBtPluginData, returnedBtList)))
return (10 * err);
if(localHalBtPluginData.selectedBtDevice) {
localHalBtPluginData.btStreamEnabled = 1;
/* TODO JAI : send selected device to softmixer (and enable stream here for now)
* Tell the softmixer that we want it as an input using 'bluealsa:HCI=hci0,DEV=F6:32:15:2A:80:70,PROFILE=a2dp'
string as capture associated with an 'uid' using smixer verb 'set-capture'
* Enable capture stream to playback using 'uid' used at 'set-capture' call
*/
}
return 0;
}
// This receive Hal bluetooth plugin events
CTLP_CAPI(events, source, argsJ, queryJ)
{
struct HalBtDeviceData *previouslySelectedBtDevice = localHalBtPluginData.selectedBtDevice;
AFB_ApiNotice(source->api, "JAI: bt event received: %s", json_object_get_string(queryJ));
if(HalBtDataHandleReceivedSingleBtDeviceData(&localHalBtPluginData, queryJ)) {
AFB_ApiError(source->api, "Error while decoding bluetooth event received json (%s)", json_object_get_string(queryJ));
return -1;
}
if(localHalBtPluginData.selectedBtDevice && localHalBtPluginData.selectedBtDevice != previouslySelectedBtDevice) {
localHalBtPluginData.btStreamEnabled = 1;
/* TODO JAI : send selected device to softmixer (and enable stream here for now)
* Tell the softmixer that we want it as an input using 'bluealsa:HCI=hci0,DEV=F6:32:15:2A:80:70,PROFILE=a2dp'
string as capture associated with an 'uid' using smixer verb 'set-capture'
* Enable capture stream to playback using 'uid' used at 'set-capture' call
*/
}
else if (! localHalBtPluginData.selectedBtDevice) {
localHalBtPluginData.btStreamEnabled = 0;
// TODO JAI: Disable capture stream to playback using 'uid' used at 'set-capture' call
}
return 0;
}
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