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authorJonathan Aillet <jonathan.aillet@iot.bzh>2018-05-03 16:47:56 +0200
committerJonathan Aillet <jonathan.aillet@iot.bzh>2018-10-08 15:51:00 +0200
commit99fcc5f06fe8c8c72bbc3fd80a866b2beac3052d (patch)
tree38e6acfcbc348cd51f0129785e04fa5843474cd1 /4a-hal/4a-hal-controllers/4a-hal-controllers-api-loader.c
parent28642c7d0bdf9ab9617ce78df378cba12c2ef8de (diff)
Pre-version of 4a-hal-manager
Pre-version of 4a-hal manager that uses app-fwk DynAPI and app-controller. Current version : - Declare a new API for each HAL (each .json config file is used to generate one app-controller API) at startup. - Define verbs that will be provided by this API. - Provide verb to list and get info of loaded API. Change-Id: I7bb6e8b7539b1acd5556fd9275a1b536e129332d Signed-off-by: Jonathan Aillet <jonathan.aillet@iot.bzh>
Diffstat (limited to '4a-hal/4a-hal-controllers/4a-hal-controllers-api-loader.c')
-rw-r--r--4a-hal/4a-hal-controllers/4a-hal-controllers-api-loader.c239
1 files changed, 239 insertions, 0 deletions
diff --git a/4a-hal/4a-hal-controllers/4a-hal-controllers-api-loader.c b/4a-hal/4a-hal-controllers/4a-hal-controllers-api-loader.c
new file mode 100644
index 0000000..3401c93
--- /dev/null
+++ b/4a-hal/4a-hal-controllers/4a-hal-controllers-api-loader.c
@@ -0,0 +1,239 @@
+/*
+ * 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)
+{
+ int apiMetadataUnpackErr, apiHalmetadataUnpackErr;
+
+ json_object *apiMetadata, *apiHalmetadata;
+
+ 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;
+
+ if(! json_object_object_get_ex(ctrlConfig->configJ, "metadata", &apiMetadata))
+ return -4;
+
+ if(! json_object_object_get_ex(ctrlConfig->configJ, "hal-metadata", &apiHalmetadata))
+ return -5;
+
+ apiMetadataUnpackErr = wrap_json_unpack(apiMetadata, "{s:s s?:s s?:s s?:o s?:o !}",
+ "uid", NULL,
+ "version", &currentCtlHalData->version,
+ "api", &currentCtlHalData->name,
+ "info", NULL,
+ "require", NULL);
+ if(apiMetadataUnpackErr)
+ return -6;
+
+ apiHalmetadataUnpackErr = wrap_json_unpack(apiHalmetadata, "{s:s s:s s:s !}",
+ "sndcard", &currentCtlHalData->sndCard,
+ "author", &currentCtlHalData->author,
+ "date", &currentCtlHalData->date);
+ if(apiHalmetadataUnpackErr)
+ return -7;
+
+ 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;
+} \ No newline at end of file