Initial working version as independent repo

1 files changed, 0 insertions, 626 deletions

diff --git a/HAL-afb/HAL-interface/hal-interface.c b/HAL-afb/HAL-interface/hal-interface.c
deleted file mode 100644
index 4a32d72..0000000
--- a/HAL-afb/HAL-interface/hal-interface.c
+++ /dev/null
@@ -1,626 +0,0 @@
-/*
- * 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.
- *
- * reference:
- *   amixer contents; amixer controls;
- *   http://www.tldp.org/HOWTO/Alsa-sound-6.html
- */
-#define _GNU_SOURCE  // needed for vasprintf
-#include <string.h>
-#include "hal-interface.h"
-#include <systemd/sd-event.h>
-
-alsaHalSndCardT *halSndCard;
-
-
-// Force specific HAL to depend on ShareHalLib
-PUBLIC char* SharedHalLibVersion = "1.0";
-
-// Subscribe to AudioBinding events
-
-STATIC void halSubscribe(afb_req request) {
-    const char *devidJ = afb_req_value(request, "devid");
-    if (devidJ == NULL) {
-        afb_req_fail_f(request, "devidJ-missing", "devidJ=hw:xxx missing");
-    }
-}
-
-// Map HAL ctlName to ctlLabel
-
-STATIC int halCtlStringToIndex(const char* label) {
-    alsaHalMapT *halCtls = halSndCard->ctls;
-
-    for (int idx = 0; halCtls[idx].tag != EndHalCrlTag; idx++) {
-        if (halCtls[idx].label && !strcasecmp(halCtls[idx].label, label)) return idx;
-    }
-
-    // not found
-    return -1;
-}
-
-STATIC int halCtlTagToIndex(halCtlsTagT tag) {
-    alsaHalMapT *halCtls = halSndCard->ctls;
-
-    for (int idx = 0; halCtls[idx].tag != EndHalCrlTag; idx++) {
-        if (halCtls[idx].tag == tag) return idx;
-    }
-
-    // not found
-    return -1;
-}
-
-
-// Return ALL HAL snd controls
-
-PUBLIC void halListCtls(afb_req request) {
-    alsaHalMapT *halCtls = halSndCard->ctls;
-    json_object *ctlsHalJ = json_object_new_array();
-
-    for (int idx = 0; halCtls[idx].ctl.numid; idx++) {
-        json_object *ctlHalJ = json_object_new_object();
-
-        if (halCtls[idx].label) json_object_object_add(ctlHalJ, "label", json_object_new_string(halCtls[idx].label));
-        else json_object_object_add(ctlHalJ, "label", json_object_new_string("HAL Label Not Set "));
-        json_object_object_add(ctlHalJ, "tag", json_object_new_int(halCtls[idx].tag));
-        json_object_object_add(ctlHalJ, "count", json_object_new_int(halCtls[idx].ctl.count));
-
-        json_object_array_add(ctlsHalJ, ctlHalJ);
-    }
-
-    afb_req_success(request, ctlsHalJ, NULL);
-}
-
-STATIC int halGetCtlIndex(afb_req request, json_object*ctlInJ) {
-    json_object *tmpJ;
-    int tag, index, done;
-
-    // check 1st short command mode [tag1, tag2, ...]
-    enum json_type jtype = json_object_get_type(ctlInJ);
-    switch (jtype) {
-        case json_type_array:
-            tmpJ = json_object_array_get_idx(ctlInJ, 0);
-            tag = json_object_get_int(tmpJ);
-            index = halCtlTagToIndex(tag);
-            break;
-
-        case json_type_int:
-            tag = json_object_get_int(ctlInJ);
-            index = halCtlTagToIndex(tag);
-            break;
-
-        case json_type_object:
-            done = json_object_object_get_ex(ctlInJ, "tag", &tmpJ);
-            if (done) {
-                tag = json_object_get_int(tmpJ);
-                index = halCtlTagToIndex(tag);
-            } else {
-                const char *label;
-                done = json_object_object_get_ex(ctlInJ, "label", &tmpJ);
-                if (!done) goto OnErrorExit;
-                label = json_object_get_string(tmpJ);
-                index = halCtlStringToIndex(label);
-            }
-            break;
-
-        default:
-            goto OnErrorExit;
-    }
-
-    if (index < 0) goto OnErrorExit;
-
-    // return corresponding lowlevel numid to querylist
-    return index;
-
-OnErrorExit:
-    afb_req_fail_f(request, "ctl-invalid", "No Label/Tag given ctl='%s'", json_object_get_string(ctlInJ));
-    return -1;
-}
-
-STATIC int halCallAlsaSetCtls(json_object *ctlsOutJ) {
-    json_object *responseJ, *queryJ;
-    int err;
-
-    // Call now level CTL
-    queryJ = json_object_new_object();
-    json_object_object_add(queryJ, "devid", json_object_new_string(halSndCard->devid));
-    json_object_object_add(queryJ, "ctl", ctlsOutJ);
-
-    err = afb_service_call_sync("alsacore", "ctlset", queryJ, &responseJ);
-    json_object_put(responseJ); // let's ignore response
-
-    return err;
-}
-
-
-// retrieve a single HAL control from its tag.
-
-PUBLIC int halSetCtlByTag(halRampEnumT tag, int value) {
-    json_object *ctlJ = json_object_new_array();
-    alsaHalMapT *halCtls = halSndCard->ctls;
-    int err, index;
-
-    index = halCtlTagToIndex(tag);
-    if (index < 0) goto OnErrorExit;
-
-    json_object_array_add(ctlJ, json_object_new_int(halCtls[index].ctl.numid));
-    json_object_array_add(ctlJ, volumeNormalise(ACTION_SET, &halCtls[index].ctl, json_object_new_int(value)));
-
-    err = halCallAlsaSetCtls(ctlJ);
-
-    return err;
-
-OnErrorExit:
-    return -1;
-}
-
-
-// Translate high level control to low level and call lower layer
-
-PUBLIC void halSetCtls(afb_req request) {
-    alsaHalMapT *halCtls = halSndCard->ctls;
-    int err, done, index;
-    json_object *ctlsInJ, *ctlsOutJ, *valuesJ;
-
-    // get query from request
-    ctlsInJ = afb_req_json(request);
-
-    switch (json_object_get_type(ctlsInJ)) {
-        case json_type_object:
-        {
-            ctlsOutJ = json_object_new_object();
-
-            // control is in literal form {tag=xxx, label=xxx, value=xxxx}
-            index = halGetCtlIndex(request, ctlsInJ);
-            if (index < 0) goto OnErrorExit;
-
-            done = json_object_object_get_ex(ctlsInJ, "val", &valuesJ);
-            if (!done) {
-                afb_req_fail_f(request, "ctl-invalid", "No val=[val1, ...] ctl='%s'", json_object_get_string(ctlsInJ));
-                goto OnErrorExit;
-            }
-
-            json_object_object_add(ctlsOutJ, "id", json_object_new_int(halCtls[index].ctl.numid));
-            json_object_object_add(ctlsOutJ, "val", volumeNormalise(ACTION_SET, &halCtls[index].ctl, valuesJ));
-            break;
-        }
-
-        case json_type_array:
-        {
-            ctlsOutJ = json_object_new_array();
-
-            for (int idx = 0; idx < json_object_array_length(ctlsInJ); idx++) {
-                json_object *ctlInJ = json_object_array_get_idx(ctlsInJ, idx);
-                index = halGetCtlIndex(request, ctlInJ);
-                if (index < 0) goto OnErrorExit;
-
-                done = json_object_object_get_ex(ctlInJ, "val", &valuesJ);
-                if (!done) {
-                    afb_req_fail_f(request, "ctl-invalid", "No val=[val1, ...] ctl='%s'", json_object_get_string(ctlsInJ));
-                    goto OnErrorExit;
-                }
-                // let's create alsa low level set control request
-                json_object *ctlOutJ = json_object_new_object();
-                json_object_object_add(ctlOutJ, "id", json_object_new_int(halCtls[index].ctl.numid));
-                json_object_object_add(ctlOutJ, "val", volumeNormalise(ACTION_SET, &halCtls[index].ctl, valuesJ));
-
-                json_object_array_add(ctlsOutJ, ctlOutJ);
-            }
-            break;
-        }
-
-        default:
-            afb_req_fail_f(request, "ctl-invalid", "Not a valid JSON ctl='%s'", json_object_get_string(ctlsInJ));
-            goto OnErrorExit;
-    }
-
-    err = halCallAlsaSetCtls(ctlsOutJ);
-    if (err) {
-        afb_req_fail_f(request, "subcall:alsacore/setctl", "%s", json_object_get_string(ctlsOutJ));
-        goto OnErrorExit;
-    }
-
-    afb_req_success(request, NULL, NULL);
-    return;
-
-OnErrorExit:
-    return;
-};
-
-// Remap low level controls into HAL hight level ones
-
-STATIC json_object *HalGetPrepareResponse(afb_req request, json_object *ctlsJ) {
-    alsaHalMapT *halCtls = halSndCard->ctls;
-    json_object *halResponseJ;
-    int length;
-
-    switch (json_object_get_type(ctlsJ)) {
-        case json_type_array:
-            // responseJ is a JSON array
-            halResponseJ = json_object_new_array();
-            length = json_object_array_length(ctlsJ);
-            break;
-        case json_type_object:
-            halResponseJ = NULL;
-            length = 1;
-            break;
-        default:
-            afb_req_fail_f(request, "ctls-notarray", "Invalid Controls return from alsa/getcontrol ctlsJ=%s", json_object_get_string(ctlsJ));
-            goto OnErrorExit;
-    }
-
-    // loop on array and store values into client context
-    for (int idx = 0; idx < length; idx++) {
-        json_object *sndCtlJ, *valJ, *numidJ;
-        int numid;
-
-        // extract control from array if any
-        if (halResponseJ) sndCtlJ = json_object_array_get_idx(ctlsJ, idx);
-        else sndCtlJ = ctlsJ;
-
-        if (!json_object_object_get_ex(sndCtlJ, "id", &numidJ) || !json_object_object_get_ex(sndCtlJ, "val", &valJ)) {
-            afb_req_fail_f(request, "ctl-invalid", "Invalid Control return from alsa/getcontrol ctl=%s", json_object_get_string(sndCtlJ));
-            goto OnErrorExit;
-        }
-
-        // HAL and Business logic use the same AlsaMixerHal.h direct conversion
-        numid = (halCtlsTagT) json_object_get_int(numidJ);
-
-        for (int idx = 0; halCtls[idx].ctl.numid; idx++) {
-            if (halCtls[idx].ctl.numid == numid) {
-                // translate low level numid to HAL one and normalise values
-                json_object *halCtlJ = json_object_new_object();
-                json_object_object_add(halCtlJ, "label", json_object_new_string(halCtls[idx].label)); // idx+1 == HAL/NUMID
-                json_object_object_add(halCtlJ, "tag", json_object_new_int(halCtls[idx].tag)); // idx+1 == HAL/NUMID
-                json_object_object_add(halCtlJ, "val", volumeNormalise(ACTION_GET, &halCtls[idx].ctl, valJ));
-
-                if (halResponseJ) json_object_array_add(halResponseJ, halCtlJ);
-                else halResponseJ = halCtlJ;
-
-                break;
-            }
-        }
-        if (halCtls[idx].ctl.numid == 0) {
-            afb_req_fail_f(request, "ctl-invalid", "Invalid Control numid=%d from alsa/getcontrol ctlJ=%s", numid, json_object_get_string(sndCtlJ));
-            goto OnErrorExit;
-        }
-    }
-    return halResponseJ;
-
-OnErrorExit:
-    return NULL;
-}
-
-STATIC json_object *halCallAlsaGetCtls(json_object *ctlsOutJ) {
-    json_object *responseJ, *queryJ;
-    int err, done;
-
-    // Call now level CTL
-    queryJ = json_object_new_object();
-    json_object_object_add(queryJ, "devid", json_object_new_string(halSndCard->devid));
-    json_object_object_add(queryJ, "ctl", ctlsOutJ);
-
-    err = afb_service_call_sync("alsacore", "ctlget", queryJ, &responseJ);
-    if (err) goto OnErrorExit;
-
-    // Let ignore info data if any and keep on response
-    done = json_object_object_get_ex(responseJ, "response", &responseJ);
-    if (!done) goto OnErrorExit;
-
-    return responseJ;
-
-OnErrorExit:
-    return NULL;
-}
-
-// retrieve a single HAL control from its tag.
-
-PUBLIC json_object *halGetCtlByTag(halRampEnumT tag) {
-    json_object *responseJ, *valJ;
-    alsaHalMapT *halCtls = halSndCard->ctls;
-    int done, index;
-
-    index = halCtlTagToIndex(tag);
-    if (index < 0) goto OnErrorExit;
-    responseJ = halCallAlsaGetCtls(json_object_new_int(halCtls[index].ctl.numid));
-
-    done = json_object_object_get_ex(responseJ, "val", &valJ);
-    if (!done) goto OnErrorExit;
-
-    return volumeNormalise(ACTION_GET, &halCtls[index].ctl, valJ);
-
-OnErrorExit:
-    return NULL;
-}
-
-
-// Translate high level control to low level and call lower layer
-
-PUBLIC void halGetCtls(afb_req request) {
-    int index;
-    alsaHalMapT *halCtls = halSndCard->ctls;
-    json_object *ctlsInJ, *ctlsOutJ, *responseJ;
-
-    // get query from request
-    ctlsInJ = afb_req_json(request);
-    ctlsOutJ = json_object_new_array();
-
-    switch (json_object_get_type(ctlsInJ)) {
-        case json_type_object:
-        {
-
-            index = halGetCtlIndex(request, ctlsInJ);
-            if (index < 0) goto OnErrorExit;
-            json_object_array_add(ctlsOutJ, json_object_new_int(halCtls[index].ctl.numid));
-            break;
-        }
-
-        case json_type_array:
-        {
-
-            for (int idx = 0; idx < json_object_array_length(ctlsInJ); idx++) {
-                json_object *ctlInJ = json_object_array_get_idx(ctlsInJ, idx);
-                index = halGetCtlIndex(request, ctlInJ);
-                if (index < 0) goto OnErrorExit;
-                json_object_array_add(ctlsOutJ, json_object_new_int(halCtls[index].ctl.numid));
-            }
-            break;
-        }
-
-        default:
-            afb_req_fail_f(request, "ctl-invalid", "Not a valid JSON ctl='%s'", json_object_get_string(ctlsInJ));
-            goto OnErrorExit;
-    }
-
-    // Call now level CTL
-    responseJ = halCallAlsaGetCtls(ctlsOutJ);
-    if (!responseJ) {
-        afb_req_fail_f(request, "subcall:alsacore/getctl", "%s", json_object_get_string(responseJ));
-        goto OnErrorExit;
-    }
-
-    // map back low level response to HAL ctl with normalised values
-    json_object *halResponse = HalGetPrepareResponse(request, responseJ);
-    if (!halResponse) goto OnErrorExit;
-
-    afb_req_success(request, halResponse, NULL);
-    return;
-
-OnErrorExit:
-    return;
-};
-
-STATIC int UpdateOneSndCtl(alsaHalCtlMapT *ctl, json_object *sndCtlJ) {
-    json_object *tmpJ, *ctlJ;
-
-    json_object_object_get_ex(sndCtlJ, "name", &tmpJ);
-    ctl->name = (char*) json_object_get_string(tmpJ);
-
-    json_object_object_get_ex(sndCtlJ, "id", &tmpJ);
-    ctl->numid = json_object_get_int(tmpJ);
-
-    // make sure we face a valid Alsa Low level ctl
-    if (!json_object_object_get_ex(sndCtlJ, "ctl", &ctlJ)) goto OnErrorExit;
-
-    json_object_object_get_ex(ctlJ, "min", &tmpJ);
-    ctl->minval = json_object_get_int(tmpJ);
-
-    json_object_object_get_ex(ctlJ, "max", &tmpJ);
-    ctl->maxval = json_object_get_int(tmpJ);
-
-    json_object_object_get_ex(ctlJ, "step", &tmpJ);
-    ctl->step = json_object_get_int(tmpJ);
-
-    json_object_object_get_ex(ctlJ, "count", &tmpJ);
-    ctl->count = json_object_get_int(tmpJ);
-
-    json_object_object_get_ex(ctlJ, "type", &tmpJ);
-    ctl->type = (snd_ctl_elem_type_t) json_object_get_int(tmpJ);
-
-    // process dbscale TLV if any
-    if (json_object_object_get_ex(sndCtlJ, "tlv", &tmpJ)) {
-        json_object *dbscaleJ;
-
-        if (!json_object_object_get_ex(tmpJ, "dbscale", &dbscaleJ)) {
-            AFB_WARNING("TLV found but not DBscale attached ctl name=%s numid=%d", ctl->name, ctl->numid);
-        } else {
-            ctl->dbscale = malloc(sizeof (alsaHalDBscaleT));
-
-            json_object_object_get_ex(dbscaleJ, "min", &tmpJ);
-            ctl->dbscale->min = (snd_ctl_elem_type_t) json_object_get_int(tmpJ);
-
-            json_object_object_get_ex(dbscaleJ, "max", &tmpJ);
-            ctl->dbscale->max = (snd_ctl_elem_type_t) json_object_get_int(tmpJ);
-
-            json_object_object_get_ex(dbscaleJ, "step", &tmpJ);
-            ctl->dbscale->step = (snd_ctl_elem_type_t) json_object_get_int(tmpJ);
-
-            json_object_object_get_ex(dbscaleJ, "mute", &tmpJ);
-            ctl->dbscale->mute = (snd_ctl_elem_type_t) json_object_get_int(tmpJ);
-        }
-    }
-
-    return 0;
-
-OnErrorExit:
-    return -1;
-}
-
-// this is call when after all bindings are loaded
-
-PUBLIC int halServiceInit(const char *apiPrefix, alsaHalSndCardT *alsaHalSndCard) {
-    int err;
-    json_object *queryurl, *responseJ, *devidJ, *ctlsJ, *tmpJ;
-    alsaHalMapT *halCtls = alsaHalSndCard->ctls;
-
-    // if not volume normalisation CB provided use default one
-    if (!alsaHalSndCard->volumeCB) alsaHalSndCard->volumeCB = volumeNormalise;
-    halSndCard = alsaHalSndCard;
-
-    err = afb_daemon_require_api("alsacore", 1);
-    if (err) {
-        AFB_ERROR("AlsaCore missing cannot use AlsaHAL");
-        goto OnErrorExit;
-    }
-
-    // register HAL with Alsa Low Level Binder
-    queryurl = json_object_new_object();
-    json_object_object_add(queryurl, "prefix", json_object_new_string(apiPrefix));
-    json_object_object_add(queryurl, "sndname", json_object_new_string(alsaHalSndCard->name));
-
-    err = afb_service_call_sync("alsacore", "halregister", queryurl, &responseJ);
-    json_object_put(queryurl);
-    if (err) {
-        AFB_NOTICE("Fail to register HAL to ALSA lowlevel binding Response='%s'", json_object_get_string(responseJ));
-        goto OnErrorExit;
-    }
-
-    // extract sound devidJ from HAL registration
-    if (!json_object_object_get_ex(responseJ, "response", &tmpJ) || !json_object_object_get_ex(tmpJ, "devid", &devidJ)) {
-        AFB_ERROR("Ooops: Internal error no devidJ return from HAL registration Response='%s'", json_object_get_string(responseJ));
-        goto OnErrorExit;
-    }
-
-    // save devid for future use
-    halSndCard->devid = strdup(json_object_get_string(devidJ));
-
-    // for each Non Alsa Control callback create a custom control
-    ctlsJ = json_object_new_array();
-    for (int idx = 0; (halCtls[idx].ctl.name || halCtls[idx].ctl.numid); idx++) {
-        json_object *ctlJ;
-
-        // Try to find best equivalent label for tag
-        if (halCtls[idx].tag >StartHalCrlTag && halCtls[idx].tag < EndHalCrlTag && halCtlsLabels[halCtls[idx].tag] != NULL) {
-            halCtls[idx].label = halCtlsLabels[halCtls[idx].tag];
-        } else {
-            if (halCtls[idx].ctl.name) halCtls[idx].label=halCtls[idx].ctl.name;
-            else if (halCtls[idx].info) halCtls[idx].label=halCtls[idx].info;
-            else  halCtls[idx].label="NoHalCttNameSet";
-        }
-
-        ctlJ = json_object_new_object();
-        if (halCtls[idx].ctl.numid) json_object_object_add(ctlJ, "ctl", json_object_new_int(halCtls[idx].ctl.numid));
-        if (halCtls[idx].ctl.name) json_object_object_add(ctlJ, "name", json_object_new_string(halCtls[idx].ctl.name));
-        if (halCtls[idx].ctl.minval) json_object_object_add(ctlJ, "min", json_object_new_int(halCtls[idx].ctl.minval));
-        if (halCtls[idx].ctl.maxval) json_object_object_add(ctlJ, "max", json_object_new_int(halCtls[idx].ctl.maxval));
-        if (halCtls[idx].ctl.step) json_object_object_add(ctlJ, "step", json_object_new_int(halCtls[idx].ctl.step));
-        if (halCtls[idx].ctl.type) json_object_object_add(ctlJ, "type", json_object_new_int(halCtls[idx].ctl.type));
-        if (halCtls[idx].ctl.count) json_object_object_add(ctlJ, "count", json_object_new_int(halCtls[idx].ctl.count));
-        if (halCtls[idx].ctl.value) json_object_object_add(ctlJ, "val", json_object_new_int(halCtls[idx].ctl.value));
-
-        if (halCtls[idx].ctl.dbscale) {
-            json_object *dbscaleJ = json_object_new_object();
-            if (halCtls[idx].ctl.dbscale->max) json_object_object_add(dbscaleJ, "max", json_object_new_int(halCtls[idx].ctl.dbscale->max));
-            if (halCtls[idx].ctl.dbscale->min) json_object_object_add(dbscaleJ, "min", json_object_new_int(halCtls[idx].ctl.dbscale->min));
-            if (halCtls[idx].ctl.dbscale->step) json_object_object_add(dbscaleJ, "step", json_object_new_int(halCtls[idx].ctl.dbscale->step));
-            if (halCtls[idx].ctl.dbscale->mute) json_object_object_add(dbscaleJ, "mute", json_object_new_int(halCtls[idx].ctl.dbscale->mute));
-            json_object_object_add(ctlJ, "dbscale", dbscaleJ);
-        }
-
-        if (halCtls[idx].ctl.enums) {
-            json_object *enumsJ = json_object_new_array();
-            for (int jdx = 0; halCtls[idx].ctl.enums[jdx]; jdx++) {
-                json_object_array_add(enumsJ, json_object_new_string(halCtls[idx].ctl.enums[jdx]));
-            }
-            json_object_object_add(ctlJ, "enums", enumsJ);
-        }
-        json_object_array_add(ctlsJ, ctlJ);
-    }
-
-    // Build new queryJ to add HAL custom control if any
-    if (json_object_array_length(ctlsJ) > 0) {
-        queryurl = json_object_new_object();
-        json_object_get(devidJ); // make sure devidJ does not get free by 1st call.
-        json_object_object_add(queryurl, "devid", devidJ);
-        json_object_object_add(queryurl, "ctl", ctlsJ);
-        json_object_object_add(queryurl, "mode", json_object_new_int(QUERY_COMPACT));
-        err = afb_service_call_sync("alsacore", "addcustomctl", queryurl, &responseJ);
-        if (err) {
-            AFB_ERROR("Fail creating HAL Custom ALSA ctls Response='%s'", json_object_get_string(responseJ));
-            goto OnErrorExit;
-        }
-    }
-
-    // Make sure response is valid
-    json_object_object_get_ex(responseJ, "response", &ctlsJ);
-    if (json_object_get_type(ctlsJ) != json_type_array) {
-        AFB_ERROR("Response Invalid JSON array ctls Response='%s'", json_object_get_string(responseJ));
-        goto OnErrorExit;
-    }
-
-    // update HAL data from JSON response
-    for (int idx = 0; idx < json_object_array_length(ctlsJ); idx++) {
-        json_object *ctlJ = json_object_array_get_idx(ctlsJ, idx);
-        err = UpdateOneSndCtl(&halCtls[idx].ctl, ctlJ);
-        if (err) {
-            AFB_ERROR("Fail found MAP Alsa Low level=%s", json_object_get_string(ctlJ));
-            goto OnErrorExit;
-        }
-    }
-
-
-    // finally register for alsa lowlevel event
-    queryurl = json_object_new_object();
-    json_object_object_add(queryurl, "devid", devidJ);
-    err = afb_service_call_sync("alsacore", "subscribe", queryurl, &responseJ);
-    if (err) {
-        AFB_ERROR("Fail subscribing to ALSA lowlevel events");
-        goto OnErrorExit;
-    }
-
-    return (0);
-
-OnErrorExit:
-    return (1);
-};
-
-
-// This receive all event this binding subscribe to
-
-PUBLIC void halServiceEvent(const char *evtname, json_object *eventJ) {
-    int numid;
-    alsaHalMapT *halCtls = halSndCard->ctls;
-    json_object *numidJ, *valuesJ;
-
-    AFB_DEBUG("halServiceEvent evtname=%s [msg=%s]", evtname, json_object_get_string(eventJ));
-
-    json_object_object_get_ex(eventJ, "id", &numidJ);
-    numid = json_object_get_int(numidJ);
-    if (!numid) {
-        AFB_ERROR("halServiceEvent noid: evtname=%s [msg=%s]", evtname, json_object_get_string(eventJ));
-        return;
-    }
-    json_object_object_get_ex(eventJ, "val", &valuesJ);
-
-    // search it corresponding numid in halCtls attach a callback
-    if (numid) {
-        for (int idx = 0; halCtls[idx].ctl.numid; idx++) {
-            if (halCtls[idx].ctl.numid == numid && halCtls[idx].cb.callback != NULL) {
-                halCtls[idx].cb.callback(halCtls[idx].tag, &halCtls[idx].ctl, halCtls[idx].cb.handle, valuesJ);
-            }
-        }
-    }
-}
-
-// Every HAL export the same API & Interface Mapping from SndCard to AudioLogic is done through alsaHalSndCardT
-PUBLIC afb_verb_v2 halServiceApi[] = {
-    /* VERB'S NAME         FUNCTION TO CALL         SHORT DESCRIPTION */
-    { .verb = "ping", .callback = pingtest, .info = "ping test for API"},
-    { .verb = "ctllist", .callback = halListCtls, .info = "List AGL normalised Sound Controls"},
-    { .verb = "ctlget", .callback = halGetCtls, .info = "Get one/many sound controls"},
-    { .verb = "ctlset", .callback = halSetCtls, .info = "Set one/many sound controls"},
-    { .verb = "evtsub", .callback = halSubscribe, .info = "Subscribe to HAL events"},
-    { .verb = NULL} /* marker for end of the array */
-};