From ea5beb82ccad84fe465c8b28794fab2a2b1cd6d4 Mon Sep 17 00:00:00 2001 From: fulup Date: Sun, 9 Apr 2017 20:27:01 +0200 Subject: Cleanup and File renaming --- Shared-Interface/CMakeLists.txt | 37 ++++++++++++++ Shared-Interface/audio-interface.c | 102 +++++++++++++++++++++++++++++++++++++ Shared-Interface/audio-interface.h | 68 +++++++++++++++++++++++++ 3 files changed, 207 insertions(+) create mode 100644 Shared-Interface/CMakeLists.txt create mode 100644 Shared-Interface/audio-interface.c create mode 100644 Shared-Interface/audio-interface.h (limited to 'Shared-Interface') diff --git a/Shared-Interface/CMakeLists.txt b/Shared-Interface/CMakeLists.txt new file mode 100644 index 0000000..665007f --- /dev/null +++ b/Shared-Interface/CMakeLists.txt @@ -0,0 +1,37 @@ +########################################################################### +# Copyright 2015, 2016, 2017 IoT.bzh +# +# author: Fulup Ar Foll +# +# 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. +########################################################################### + +# Add target to project dependency list +PROJECT_TARGET_ADD(audio-interface) + + # Define targets + ADD_LIBRARY(audio-interface STATIC audio-interface.c) + + # Library properties + SET_TARGET_PROPERTIES(audio-interface PROPERTIES OUTPUT_NAME audiointerface) + + # Library dependencies + #TARGET_LINK_LIBRARIES(audio-interface + # empty + #) + + # Define target includes + TARGET_INCLUDE_DIRECTORIES(audio-interface + PUBLIC ${CMAKE_CURRENT_SOURCE_DIR} + ) + diff --git a/Shared-Interface/audio-interface.c b/Shared-Interface/audio-interface.c new file mode 100644 index 0000000..c1c4054 --- /dev/null +++ b/Shared-Interface/audio-interface.c @@ -0,0 +1,102 @@ +/* + * Copyright (C) 2016 "IoT.bzh" + * Author Fulup Ar Foll + * + * 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 // needed for vasprintf + +#include +#include +#include +#include +#include + +#include "audio-interface.h" + +typedef struct { + int index; + int numid; +} shareHallMap_T; + + +PUBLIC int cbCheckResponse(struct afb_req request, int iserror, struct json_object *result) { + struct json_object *response, *status, *info; + + if (iserror) { // on error proxy information we got from lower layer + if (result) { + if (json_object_object_get_ex(result, "request", &response)) { + json_object_object_get_ex(response, "info", &info); + json_object_object_get_ex(response, "status", &status); + afb_req_fail(request, json_object_get_string(status), json_object_get_string(info)); + goto OnErrorExit; + } + } else { + afb_req_fail(request, "cbCheckFail", "No Result inside API response"); + } + goto OnErrorExit; + } + return (0); + +OnErrorExit: + return (-1); +} + + +// This function should be part of Generic AGL Framework +PUBLIC json_object* afb_service_call_sync(struct afb_service srvitf, struct afb_req request, char* api, char* verb, struct json_object* queryurl) { + json_object* response = NULL; + int status = 0; + sem_t semid; + + // Nested procedure are allow in GNU and allow us to keep caller stack valid + + void callback(void *handle, int iserror, struct json_object *result) { + + // Process Basic Error + if (!cbCheckResponse(request, iserror, result)) { + status = -1; + goto OnExitCB; + } + + // Get response from object + json_object_object_get_ex(result, "response", &response); + if (!response) { + afb_req_fail_f(request, "response-notfound", "No Controls return from alsa/getcontrol result=[%s]", json_object_get_string(result)); + goto OnExitCB; + } + +OnExitCB: + sem_post(&semid); + } + + // Create an exclusive semaphore + status = sem_init(&semid, 0, 0); + if (status < 0) { + afb_req_fail_f(request, "error:seminit", "Fail to allocate semaphore err=[%s]", strerror(status)); + goto OnExit; + } + + // Call service and wait for call back to finish before moving any further + afb_service_call(srvitf, api, verb, queryurl, callback, NULL); + sem_wait(&semid); + +OnExit: + return (response); +} + +PUBLIC void pingtest(struct afb_req request) { + json_object *query = afb_req_json(request); + afb_req_success(request, query, NULL); +} diff --git a/Shared-Interface/audio-interface.h b/Shared-Interface/audio-interface.h new file mode 100644 index 0000000..ffefbfc --- /dev/null +++ b/Shared-Interface/audio-interface.h @@ -0,0 +1,68 @@ +/* + * Copyright (C) 2016 "IoT.bzh" + * Author Fulup Ar Foll + * + * 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. + * + * reference: + * amixer contents; amixer controls; + * http://www.tldp.org/HOWTO/Alsa-sound-6.html + */ + +#ifndef AUDIOCOMMON_H +#define AUDIOCOMMON_H + +#include +#include +#include + +#ifndef PUBLIC + #define PUBLIC +#endif +#define STATIC static + +// Most controls are MIXER but some vendor specific are possible +typedef enum { + OUTVOL, + PCMVOL, + INVOL, + SWITCH, + ROUTE, + CARD, + ENUM, +} halGroupEnumT; + +typedef enum { + READ, + WRITE, + RW, +} halAclEnumT; + +typedef enum { + StartHalCrlTag=0, + + // HighLevel Audio Control List + Master_Playback_Volume, + PCM_Playback_Volume, + PCM_Playback_Switch, + Capture_Volume, + + EndHalCrlTag // used to compute number of ctls +} halCtlsEnumT; + +PUBLIC int cbCheckResponse(struct afb_req request, int iserror, struct json_object *result) ; +PUBLIC json_object* afb_service_call_sync(struct afb_service srvitf, struct afb_req request, char* api, char* verb, struct json_object* queryurl); +PUBLIC void pingtest(struct afb_req request); + +#endif /* AUDIOCOMMON_H */ + -- cgit 1.2.3-korg