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/*
* Copyright (C) 2016 "IoT.bzh"
* Author Fulup Ar Foll <fulup@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 <time.h>
#include "mixer-binding.h"
#define size_temp 512
enum smixer_audio_mode_t { DEFAULT, AVIRT };
// default api to print log when apihandle not avalaible
PUBLIC afb_api_t AFB_default;
// Config Section definition (note: controls section index should match handle retrieval in HalConfigExec)
static CtlSectionT ctrlSections[]= {
{.key="resources" , .loadCB= PluginConfig},
{.key="onload" , .loadCB= OnloadConfig},
// {.key="controls", .loadCB= ControlConfig},
{.key=NULL}
};
STATIC void ctrlapi_ping (afb_req_t request) {
static int count=0;
count++;
AFB_REQ_NOTICE (request, "Controller:ping count=%d", count);
afb_req_success(request,json_object_new_int(count), NULL);
return;
}
// Every HAL export the same API & Interface Mapping from SndCard to AudioLogic is done through alsaHalSndCardT
STATIC afb_verb_t CtrlApiVerbs[] = {
/* VERB'S NAME FUNCTION TO CALL SHORT DESCRIPTION */
{ .verb = "ping", .callback = ctrlapi_ping , .info = "ping test for API"},
{ .verb = NULL} /* marker for end of the array */
};
STATIC int CtrlLoadStaticVerbs (afb_api_t apiHandle, afb_verb_t *verbs) {
int errcount=0;
for (int idx=0; verbs[idx].verb; idx++) {
errcount+= afb_api_add_verb(apiHandle,
CtrlApiVerbs[idx].verb,
CtrlApiVerbs[idx].info,
CtrlApiVerbs[idx].callback,
(void*)&CtrlApiVerbs[idx],
CtrlApiVerbs[idx].auth, 0, 0);
}
return errcount;
};
// next generation dynamic API-V3 mode
#include <signal.h>
STATIC int CtrlLoadOneApi (void *cbdata, afb_api_t apiHandle) {
CtlConfigT *ctrlConfig = (CtlConfigT*) cbdata;
// save closure as api's data context
afb_api_set_userdata(apiHandle, ctrlConfig);
// add static controls verbs
int error = CtrlLoadStaticVerbs (apiHandle, CtrlApiVerbs);
if (error) {
AFB_API_ERROR(apiHandle, "CtrlLoadSection fail to Registry static V2 verbs");
goto OnErrorExit;
}
// load section for corresponding API
error= CtlLoadSections(apiHandle, ctrlConfig, ctrlSections);
// declare an event event manager for this API;
afb_api_on_event(apiHandle, CtrlDispatchApiEvent);
// should not seal API as each mixer+stream create a new verb
// afb_dynapi_seal(apiHandle);
return error;
OnErrorExit:
return 1;
}
PUBLIC int afbBindingEntry(afb_api_t apiHandle) {
AFB_default = apiHandle;
FILE *fp;
char temp[size_temp];
char *prefix;
enum smixer_audio_mode_t smixer_audio_mode = DEFAULT;
AFB_API_NOTICE (apiHandle, "Controller in afbBindingEntry");
const char *dirList = getenv("CONTROL_CONFIG_PATH");
if (!dirList) dirList=CONTROL_CONFIG_PATH;
// Select correct config file
char *configPath = getenv("SMIXER_CONFIG_FILE_PATH");
if (!configPath) {
// Do a module detection to know which audio config we need (avirt or aloop=default)
if((fp = fopen("/proc/modules", "r")) == NULL) {
goto OnErrorExit;
}
while(fgets(temp, size_temp, fp) != NULL) {
if((strstr(temp, "snd_avirt_core")) != NULL) {
AFB_API_NOTICE (apiHandle, "CTL-INIT: AVIRT module is loaded, assume that mixer needs avirt config.");
smixer_audio_mode = AVIRT;
break;
}
}
if(fp) fclose(fp);
if(smixer_audio_mode == AVIRT) {
prefix = "smixer-avirt";
} else {
prefix = "smixer-default";
}
configPath = CtlConfigSearch(apiHandle, dirList, prefix);
AFB_API_NOTICE (apiHandle, "CTL-INIT: configPath=%s", configPath);
}
if (!configPath) {
AFB_API_ERROR(apiHandle, "CtlPreInit: No smixer-%s-* config found in %s ", GetBinderName(), dirList);
goto OnErrorExit;
}
// load config file and create API
CtlConfigT *ctrlConfig = CtlLoadMetaData (apiHandle, configPath);
if (!ctrlConfig) {
AFB_API_ERROR(apiHandle, "CtrlBindingDyn No valid control config file in:\n-- %s", configPath);
goto OnErrorExit;
}
if (!ctrlConfig->api) {
AFB_API_ERROR(apiHandle, "CtrlBindingDyn API Missing from metadata in:\n-- %s", configPath);
goto OnErrorExit;
}
AFB_API_NOTICE (apiHandle, "Controller API='%s' info='%s'", ctrlConfig->api, ctrlConfig->info);
// create one API per config file (Pre-V3 return code ToBeChanged)
afb_api_t handle = afb_api_new_api(apiHandle, ctrlConfig->api, ctrlConfig->info, 1, CtrlLoadOneApi, ctrlConfig);
int status = 0;
// config exec should be done after api init in order to enable onload to use newly defined ctl API.
if (handle)
status = CtlConfigExec (apiHandle, ctrlConfig);
return status;
OnErrorExit:
return -1;
}
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