From 5cb52e556fed8eb0cf74d1052fe413fbb7406b0e Mon Sep 17 00:00:00 2001 From: Fulup Ar Foll Date: Thu, 9 Mar 2017 15:58:04 +0100 Subject: Syncup Status with Microchip --- AlsaSound/HALayer/Shared/CMakeLists.txt | 30 ++++ AlsaSound/HALayer/Shared/SharedHalLib.c | 252 ++++++++++++++++++++++++++++++++ 2 files changed, 282 insertions(+) create mode 100644 AlsaSound/HALayer/Shared/CMakeLists.txt create mode 100644 AlsaSound/HALayer/Shared/SharedHalLib.c (limited to 'AlsaSound/HALayer/Shared') diff --git a/AlsaSound/HALayer/Shared/CMakeLists.txt b/AlsaSound/HALayer/Shared/CMakeLists.txt new file mode 100644 index 0000000..27d93e0 --- /dev/null +++ b/AlsaSound/HALayer/Shared/CMakeLists.txt @@ -0,0 +1,30 @@ +########################################################################### +# 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. +########################################################################### + + +INCLUDE_DIRECTORIES(${include_dirs}) + +################################################## +# Shared HAL(Hardware Abstraction Layer) +################################################## +ADD_LIBRARY(shared-hal MODULE SharedHalLib.c) + +TARGET_LINK_LIBRARIES(shared-hal ${link_libraries}) +INSTALL(TARGETS shared-hal LIBRARY DESTINATION ${binding_install_dir}) + + diff --git a/AlsaSound/HALayer/Shared/SharedHalLib.c b/AlsaSound/HALayer/Shared/SharedHalLib.c new file mode 100644 index 0000000..ffa25e0 --- /dev/null +++ b/AlsaSound/HALayer/Shared/SharedHalLib.c @@ -0,0 +1,252 @@ +/* + * 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 + */ +#define _GNU_SOURCE // needed for vasprintf +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#include "MiscHelpers.h" +#include "AlsaHalIface.h" + +typdef struct { + int numid; +} shareHallMap_T; + +static struct afb_service srvitf; +static const struct afb_binding_interface *afbIface; +static shareHallMap_T *shareHallMap; + + +STATIC void localping(struct afb_req request) { + json_object *query = afb_req_json(request); + afb_req_success(request, query, NULL); +} + +// This callback when api/alsacore/subscribe returns +STATIC void alsaSubcribeCB (void *handle, int iserror, struct json_object *result) { + struct afb_req request = afb_req_unstore(handle); + struct json_object *x, *resp = NULL; + const char *info = NULL; + + if (result) { + INFO (afbIface, "result=[%s]\n", json_object_to_json_string (result)); + if (json_object_object_get_ex(result, "request", &x) && json_object_object_get_ex(x, "info", &x)) + info = json_object_get_string(x); + if (!json_object_object_get_ex(result, "response", &resp)) resp = NULL; + } + + // push message respond + if (iserror) afb_req_fail_f(request, "Fail", info); + else afb_req_success(request, resp, info); + + // free calling request + afb_req_unref(request); +} + +// Create and subscribe to alsacore ctl events +STATIC void halMonitor(struct afb_req request) { + + // save request in session as it might be used after return by callback + struct afb_req *handle = afb_req_store(request); + + // push request to low level binding + if (!handle) afb_req_fail(request, "error", "out of memory"); + else afb_service_call(srvitf, "alsacore", "subctl", json_object_get(afb_req_json(request)), alsaSubcribeCB, handle); + + // success/failure messages return from callback +} + +// Subscribe to AudioBinding events +STATIC void halSubscribe (struct afb_req request) { + const char *devid = afb_req_value(request, "devid"); + if (devid == NULL) { + afb_req_fail_f (request, "devid-missing", "devid=hw:xxx missing"); + } +} + +// Call when all bindings are loaded and ready to accept request +STATIC void halGetVol(struct afb_req request) { + + // Should call here Hardware Alsa Abstraction Layer for corresponding Sound Card + afb_req_success (request, NULL, NULL); + return; + +} + +STATIC void halSetVol(struct afb_req request) { + const char *arg; + const char *pcm; + + arg = afb_req_value(request, "vol"); + if (arg == NULL) { + afb_req_fail_f (request, "argument-missing", "vol=[0,100] missing"); + goto OnErrorExit; + } + + pcm = afb_req_value(request, "pcm"); + if (pcm == NULL) pcm="Master"; + + // Should call here Hardware Alsa Abstraction Layer for corresponding Sound Card + afb_req_success (request, NULL, NULL); + return; + + OnErrorExit: + return; + +} + +// this is call when after all bindings are loaded +STATIC int halGetControl(struct afb_service service) { + srvitf = service; + struct json_object *queryin, *queryout, *ctls, *devid; + + // get query from request + queryin = afb_req_json(request); + + // check devid was given + devid= json_object_object_get(queryin,"devid"); + if (!ctls) { + afb_req_fail_f(request, "devid-notfound", "No DevID given query=[%s]", json_object_get_string(queryin)); + goto OnErrorExit; + } + + // loop on requested controls + ctls= json_object_object_get(queryin,"ctls"); + if (!ctls || json_object_array_length(ctls) <= 0) { + afb_req_fail_f(request, "ctls-notfound", "No Controls given query=[%s]", json_object_get_string(queryin)); + goto OnErrorExit; + } + + for (int idx=0; idx< json_object_array_length(ctls), idx++) { + struct json_object *ctl; + halControlEnumT control; + int value; + + // each controls should be halControlEnumT+value + ctl = json_object_array_get_idx(ctls, idx); + if (json_object_array_length(ctl != 2)) { + afb_req_fail_f(request, "ctl-invalid", "Invalid Control devid=%s ctl=[%s]"json_object_get_string(devid), json_object_get_string(cls)); + goto OnErrorExit; + } + + // As HAL and Business logic use the same AlsaMixerHal.h direct conversion is not an issue + control = (halControlEnumT)json_object_get_int(json_object_array_get_idx(ctl,0)); + value = json_object_get_int(json_object_array_get_idx(ctl,0)); + + if (control >= EndHalCrlTag || control <= StartHalCrlTag) { + afb_req_fail_f(request, "ctl-invalid", "Invalid Control devid=%s ctl=[%s] should be [%d=%d]" + , json_object_get_string(devid), json_object_get_string(cls)), StartHalCrlTag, EndHalCrlTag; + goto OnErrorExit; + } + + + default: + NOTICE (afbIface, "audioLogicOpenCB2 unknown HAL control=[%s]", json_object_get_string(ctl)): + } + } + + + // register HAL with Alsa Low Level Binder devid=hw:0&numid=1&quiet=0 + queryurl=json_object_new_object(); + json_object_object_add(queryurl, "prefix",json_object_new_string(alsaHalBinding.v1.prefix)); + json_object_object_add(queryurl, "name" ,json_object_new_string(alsaHalSndCard.name)); + afb_service_call(srvitf, "alsacore", "registerHal", queryurl, halGetControlCB, queryurl); + + + afb_req_success (request, sndctrls, NULL); + return; + +OnErrorExit: + +}; + +STATIC void halInitCB (void *handle, int iserror, struct json_object *result) { + struct json_object *queryurl = (json_object*)handle; + + if (iserror) NOTICE (afbIface, "halInitCB: registration alsaHAL query=[%s] Fail", json_object_to_json_string(queryurl)); + else DEBUG(afbIface, "halInitCB: registration alsaHAL card=[%s] Success", json_object_to_json_string(queryurl)); +} + +// This receive all event this binding subscribe to +PUBLIC void afbBindingV1ServiceEvent(const char *evtname, struct json_object *object) { + + NOTICE (afbIface, "afbBindingV1ServiceEvent evtname=%s [msg=%s]", evtname, json_object_to_json_string(object)); +} + +// this is call when after all bindings are loaded +PUBLIC int afbBindingV1ServiceInit(struct afb_service service) { + srvitf = service; + struct json_object *queryurl; + + // API prefix is used as sndcard halname + alsaHalBinding.v1.prefix= prefix; + + // register HAL with Alsa Low Level Binder + queryurl=json_object_new_object(); + json_object_object_add(ctx->queryurl, "prefix",json_object_new_string(alsaHalBinding.v1.prefix)); + json_object_object_add(ctx->queryurl, "name" ,json_object_new_string(alsaHalSndCard.name)); + afb_service_call(srvitf, "alsacore", "registerHal", queryurl, halInitCB, NULL); + + return 0; +}; + + +// Every HAL export the same API & Interface Mapping from SndCard to AudioLogic is done through alsaHalSndCardT +STATIC const struct afb_verb_desc_v1 halSharedApi[] = { + /* VERB'S NAME SESSION MANAGEMENT FUNCTION TO CALL SHORT DESCRIPTION */ + { .name= "ping" , .session= AFB_SESSION_NONE, .callback= localping, .info= "Ping Binding" }, + { .name= "getcontrol", .session= AFB_SESSION_NONE, .callback= halGetControl,.info= "Get Control" }, + { .name= "setvolume", .session= AFB_SESSION_NONE, .callback= halSetVol, .info= "Set Volume" }, + { .name= "getvolume", .session= AFB_SESSION_NONE, .callback= halGetVol, .info= "Get Volume" }, + { .name= "subscribe", .session= AFB_SESSION_NONE, .callback= halSubscribe, .info= "Subscribe AudioBinding Events" }, + { .name= NULL } /* marker for end of the array */ +}; + +// Process HAL mapping from alsaHalSndCardT before registering HAL binder +PUBLIC const struct afb_binding *afbBindingV1Register(const struct afb_binding_interface *itf) { + int count; + afbIface= itf; // need to keep a static trace of binder interface for avances functions + alsaHalBinding.verbs=halSharedApi; // complete sndcard specific alsaHalBinding with standard HAL APIs + alsaHalCtlMapT *alsaHalCtls = MapalsaHalSndCard.alsaHalCtlsMap; // Get sndcard specific HAL control mapping + + if (alsaHalCtls == NULL) { + ERROR (afbIface, "afbBindingV1Register Fail alsaHalCtlsMap==NULL"); + return NULL; + } + + // Create a zone to store HAL high/low level mapping + shareHallMap = calloc (EndHalCrlTag * sizeof(shareHallMap_T)); + for (int idx= 0; alsaHalCtlsMap[idx].numid != 0; idx++) { + shareHallMap[alsaHalCtlsMap[idx].]->numid = alsaHalCtlsMap[idx].numid; + } + + return alsaHalBinding; /* returns the description of the binding */ +} -- cgit 1.2.3-korg