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/*
* Copyright (C) 2016 "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 <stdbool.h>
#include <string.h>
#include <filescan-utils.h>
#include <wrap-json.h>
#include <ctl-config.h>
#include "../4a-hal-utilities/4a-hal-utilities-verbs-loader.h"
#include "../4a-hal-manager/4a-hal-manager-cb.h"
#include "4a-hal-controllers-api-loader.h"
// Default api to print log when apihandle not available
afb_dynapi *AFB_default;
/*******************************************************************************
* Json parsing functions using app controller *
******************************************************************************/
// Config Section definition
static CtlSectionT ctrlSections[] =
{
[CTL_SECTION_PLUGIN] = {.key="plugins" , .loadCB= PluginConfig},
[CTL_SECTION_ONLOAD] = {.key="onload" , .loadCB= OnloadConfig},
[CTL_SECTION_CONTROL] = {.key="controls", .loadCB= ControlConfig},
[CTL_SECTION_EVENT] = {.key="events" , .loadCB= EventConfig},
[CTL_SECTION_ENDTAG] = {.key=NULL}
};
/*******************************************************************************
* Dynamic HAL verbs' functions *
******************************************************************************/
// Every HAL export the same API & Interface Mapping from SndCard to AudioLogic is done through alsaHalSndCardT
static struct HalUtlApiVerb CtlHalDynApiStaticVerbs[] =
{
/* VERB'S NAME FUNCTION TO CALL SHORT DESCRIPTION */
{ .verb = "ping", .callback = HalMgrPing, .info = "Ping test for DynApi"},
{ .verb = NULL } // Marker for end of the array
};
/*******************************************************************************
* Dynamic API functions for app controller *
* TODO JAI : Use API-V3 instead of API-PRE-V3 *
******************************************************************************/
static int HalCtlsInitOneApi(afb_dynapi *apiHandle)
{
CtlConfigT *ctrlConfig;
struct SpecificHalData *currentCtlHalData;
if(! apiHandle)
return -1;
// Hugely hack to make all V2 AFB_DEBUG to work in fileutils
AFB_default = apiHandle;
// Retrieve section config from api handle
ctrlConfig = (CtlConfigT *) afb_dynapi_get_userdata(apiHandle);
if(! ctrlConfig)
return -2;
currentCtlHalData = ctrlConfig->external;
if(! currentCtlHalData)
return -3;
// Fill SpecificHalDatadata structure
currentCtlHalData->internal = true;
currentCtlHalData->status = HAL_STATUS_UNAVAILABLE;
currentCtlHalData->name = (char *) ctrlConfig->api;
currentCtlHalData->sndCard = (char *) ctrlConfig->uid;
currentCtlHalData->info = (char *) ctrlConfig->info;
currentCtlHalData->author = (char *) ctrlConfig->author;
currentCtlHalData->version = (char *) ctrlConfig->version;
currentCtlHalData->date = (char *) ctrlConfig->date;
currentCtlHalData->apiHandle = apiHandle;
currentCtlHalData->ctrlConfig = ctrlConfig;
// TODO JAI: Search for hw sndCard
// TODO JAI: Update alsa command of HalCtl to use alsa-softmixer/alsa-core data
// TODO JAI: handle refresh of hal status using /dev/snd/byId (or /dev/snd/byId)
return CtlConfigExec(apiHandle, ctrlConfig);
}
static int HalCtlsLoadOneApi(void *cbdata, afb_dynapi *apiHandle)
{
int err;
CtlConfigT *ctrlConfig;
if(! cbdata || ! apiHandle )
return -1;
ctrlConfig = (CtlConfigT*) cbdata;
// Save closure as api's data context
afb_dynapi_set_userdata(apiHandle, ctrlConfig);
// Add static controls verbs
if(HalUtlLoadStaticVerbs(apiHandle, CtlHalDynApiStaticVerbs)) {
AFB_DYNAPI_ERROR(apiHandle, "%s : load Section : fail to register static V2 verbs", __func__);
return 1;
}
// Load section for corresponding Api
err = CtlLoadSections(apiHandle, ctrlConfig, ctrlSections);
// Declare an event manager for this Api
afb_dynapi_on_event(apiHandle, CtrlDispatchApiEvent);
// Init Api function (does not receive user closure ???)
afb_dynapi_on_init(apiHandle, HalCtlsInitOneApi);
afb_dynapi_seal(apiHandle);
return err;
}
int HalCtlsCreateApi(afb_dynapi *apiHandle, char *path, struct HalMgrData *HalMgrGlobalData)
{
CtlConfigT *ctrlConfig;
struct SpecificHalData *currentCtlHalData;
if(! apiHandle || ! path || ! HalMgrGlobalData)
return -1;
// Create one Api per file
ctrlConfig = CtlLoadMetaData(apiHandle, path);
if(! ctrlConfig) {
AFB_DYNAPI_ERROR(apiHandle, "%s: No valid control config file in:\n-- %s", __func__, path);
return -2;
}
if(! ctrlConfig->api) {
AFB_DYNAPI_ERROR(apiHandle, "%s: API Missing from metadata in:\n-- %s", __func__, path);
return -3;
}
currentCtlHalData = HalUtlAddHalApiToHalList(HalMgrGlobalData);
if(! currentCtlHalData)
return -4;
ctrlConfig->external = (void *) currentCtlHalData;
// Create one API (Pre-V3 return code ToBeChanged)
return afb_dynapi_new_api(apiHandle, ctrlConfig->api, ctrlConfig->info, 1, HalCtlsLoadOneApi, ctrlConfig);
}
int HalCtlsCreateAllApi(afb_dynapi *apiHandle, struct HalMgrData *HalMgrGlobalData)
{
int index, err, status;
char *dirList, *fileName, *fullPath;
char filePath[CONTROL_MAXPATH_LEN];
filePath[CONTROL_MAXPATH_LEN - 1] = '\0';
json_object *configJ, *entryJ;
if(! apiHandle || ! HalMgrGlobalData)
return -1;
// Hugely hack to make all V2 AFB_DEBUG to work in fileutils
AFB_default = apiHandle;
AFB_DYNAPI_NOTICE(apiHandle, "In %s", __func__);
dirList = getenv("CONTROL_CONFIG_PATH");
if(! dirList)
dirList = CONTROL_CONFIG_PATH;
configJ = CtlConfigScan(dirList, "4a");
if(! configJ) {
AFB_DYNAPI_ERROR(apiHandle, "%s: No 4a*.json config file(s) found in %s ", __func__, dirList);
return -2;
}
// We load 1st file others are just warnings
for(index = 0; index < json_object_array_length(configJ); index++) {
entryJ = json_object_array_get_idx(configJ, index);
err = wrap_json_unpack(entryJ, "{s:s, s:s !}", "fullpath", &fullPath, "filename", &fileName);
if(err) {
AFB_DYNAPI_ERROR(apiHandle, "%s: HOOPs invalid JSON entry = %s", __func__, json_object_get_string(entryJ));
return -1;
}
strncpy(filePath, fullPath, sizeof(filePath) - 1);
strncat(filePath, "/", sizeof(filePath));
strncat(filePath, fileName, sizeof(filePath));
if(HalCtlsCreateApi(apiHandle, filePath, HalMgrGlobalData) < 0)
status--;
}
return status;
}
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