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SUMMARY     = "4A - Infotainment network setup and access"
DESCRIPTION = "Infotainment network setup and access (using Unified Centralized Network Stack)"
HOMEPAGE    = "https://gerrit.automotivelinux.org/gerrit/#/admin/projects/apps/agl-service-unicens"
SECTION     = "apps"

LICENSE = "Apache-2.0"
LIC_FILES_CHKSUM = "file://LICENSE;md5=89aea4e17d99a7cacdbeed46a0096b10"

SRC_URI = "gitsm://gerrit.automotivelinux.org/gerrit/apps/agl-service-unicens;protocol=https;branch=${AGL_BRANCH}"
SRCREV = "${AGL_APP_REVISION}"

PV = "0.1+git${SRCPV}"
S  = "${WORKDIR}/git"

inherit cmake aglwgt pkgconfig

DEPENDS += "alsa-lib json-c systemd af-binder glib-2.0 libxml2 libafb-helpers"
RDEPENDS_${PN} += "libxml2 "
_alloca(&cardinfo);
- if ((err = snd_ctl_card_info(ctlDev, cardinfo)) < 0) {
- afb_req_fail_f(request, "devid-invalid", "SndCard devid=%s Not Found err=%s", queryValues.devid, snd_strerror(err));
- goto OnErrorExit;
- }
-
- cardId = snd_ctl_card_info_get_card(cardinfo);
-
- // search for an existing subscription and mark 1st free slot
- for (idx = 0; idx < MAX_SND_CARD; idx++) {
- if (sndHandles[idx].ucount > 0 && cardId == sndHandles[idx].cardId) {
- evtHandle = sndHandles[idx].evtHandle;
- break;
- } else if (idxFree == -1) idxFree = idx;
- };
-
- // if not subscription exist for the event let's create one
- if (idx == MAX_SND_CARD) {
-
- // reach MAX_SND_CARD event registration
- if (idxFree == -1) {
- afb_req_fail_f(request, "register-toomany", "Cannot register new event Maxcard==%d", idx);
- goto OnErrorExit;
- }
-
- evtHandle = malloc(sizeof (evtHandleT));
- evtHandle->ctlDev = ctlDev;
- evtHandle->mode = queryValues.mode;
- sndHandles[idxFree].ucount = 0;
- sndHandles[idxFree].cardId = cardId;
- sndHandles[idxFree].evtHandle = evtHandle;
-
- // subscribe for sndctl events attached to devid
- err = snd_ctl_subscribe_events(evtHandle->ctlDev, 1);
- if (err < 0) {
- afb_req_fail_f(request, "subscribe-fail", "Cannot subscribe events from devid=%s err=%d", queryValues.devid, err);
- goto OnErrorExit;
- }
-
- // get pollfd attach to this sound board
- snd_ctl_poll_descriptors(evtHandle->ctlDev, &evtHandle->pfds, 1);
-
- // register sound event to binder main loop
- err = sd_event_add_io(afb_daemon_get_event_loop(), &evtHandle->src, evtHandle->pfds.fd, EPOLLIN, sndCtlEventCB, evtHandle);
- if (err < 0) {
- afb_req_fail_f(request, "register-mainloop", "Cannot hook events to mainloop devid=%s err=%d", queryValues.devid, err);
- goto OnErrorExit;
- }
-
- // create binder event attached to devid name
- evtHandle->afbevt = afb_daemon_make_event(queryValues.devid);
- if (!afb_event_is_valid(evtHandle->afbevt)) {
- afb_req_fail_f(request, "register-event", "Cannot register new binder event name=%s", queryValues.devid);
- goto OnErrorExit;
- }
-
- // everything looks OK let's move forward
- idx = idxFree;
- }
-
- // subscribe to binder event
- err = afb_req_subscribe(request, evtHandle->afbevt);
- if (err != 0) {
- afb_req_fail_f(request, "register-eventname", "Cannot subscribe binder event name=%s [invalid channel]", queryValues.devid);
- goto OnErrorExit;
- }
-
- // increase usage count and return success
- sndHandles[idx].ucount++;
- afb_req_success(request, NULL, NULL);
- return;
-
-OnErrorExit:
- if (ctlDev) snd_ctl_close(ctlDev);
- return;
-}
-
-// Subscribe to every Alsa CtlEvent send by a given board
-
-STATIC json_object *alsaProbeCardId(afb_req request) {
- char devid [10];
- const char *ctlName, *shortname, *longname;
- int card, err, index, idx;
- json_object *responseJ;
- snd_ctl_t *ctlDev;
- snd_ctl_card_info_t *cardinfo;
-
- const char *sndname = afb_req_value(request, "sndname");
- if (sndname == NULL) {
- afb_req_fail_f(request, "argument-missing", "sndname=SndCardName missing");
- goto OnErrorExit;
- }
-
- // loop on potential card number
- snd_ctl_card_info_alloca(&cardinfo);
- for (card = 0; card < MAX_SND_CARD; card++) {
-
- // build card devid and probe it
- snprintf(devid, sizeof (devid), "hw:%i", card);
-
- // open control interface for devid
- err = snd_ctl_open(&ctlDev, devid, SND_CTL_READONLY);
- if (err < 0) continue;
-
- // extract sound card information
- snd_ctl_card_info(ctlDev, cardinfo);
- index = snd_ctl_card_info_get_card(cardinfo);
- ctlName = snd_ctl_card_info_get_id(cardinfo);
- shortname = snd_ctl_card_info_get_name(cardinfo);
- longname = snd_ctl_card_info_get_longname(cardinfo);
-
- // check if short|long name match
- if (!strcmp(sndname, ctlName)) break;
- if (!strcmp(sndname, shortname)) break;
- if (!strcmp(sndname, longname)) break;
- }
-
- if (card == MAX_SND_CARD) {
- afb_req_fail_f(request, "ctlDev-notfound", "Fail to find card with name=%s", sndname);
- goto OnErrorExit;
- }
-
- // proxy ctlevent as a binder event
- responseJ = json_object_new_object();
- json_object_object_add(responseJ, "index", json_object_new_int(index));
- json_object_object_add(responseJ, "devid", json_object_new_string(devid));
- json_object_object_add(responseJ, "shortname", json_object_new_string(shortname));
- json_object_object_add(responseJ, "longname", json_object_new_string(longname));
-
- // search for a HAL binder card mapping name to api prefix
- for (idx = 0; (idx < MAX_SND_CARD && cardRegistry[idx]); idx++) {
- if (!strcmp(cardRegistry[idx]->shortname, shortname)) {
- json_object_object_add(responseJ, "halapi", json_object_new_string(cardRegistry[idx]->apiprefix));
- break;
- }
- }
-
- return responseJ;
-
-OnErrorExit:
- return NULL;
-}
-
-// Make alsaProbeCardId compatible with AFB request
-
-PUBLIC void alsaGetCardId(afb_req request) {
-
- json_object *responseJ = alsaProbeCardId(request);
- if (responseJ) afb_req_success(request, responseJ, NULL);
-}
-
-// Return list of active resgistrated HAL with corresponding sndcard
-
-PUBLIC void alsaActiveHal(afb_req request) {
- json_object *responseJ = json_object_new_array();
-
- for (int idx = 0; idx < MAX_SND_CARD; idx++) {
- if (!cardRegistry[idx]) break;
-
- json_object *haldevJ = json_object_new_object();
- json_object_object_add(haldevJ, "api", json_object_new_string(cardRegistry[idx]->apiprefix));
- if (cardRegistry[idx]->devid) json_object_object_add(haldevJ, "devid", json_object_new_string(cardRegistry[idx]->devid));
- if (cardRegistry[idx]->shortname)json_object_object_add(haldevJ, "shortname", json_object_new_string(cardRegistry[idx]->shortname));
- if (cardRegistry[idx]->longname) json_object_object_add(haldevJ, "longname", json_object_new_string(cardRegistry[idx]->longname));
- json_object_array_add(responseJ, haldevJ);
- }
-
- afb_req_success(request, responseJ, NULL);
-}
-
-
-// Register loaded HAL with board Name and API prefix
-
-PUBLIC void alsaRegisterHal(afb_req request) {
- static int index = 0;
- json_object *responseJ;
- const char *shortname, *apiPrefix;
-
- apiPrefix = afb_req_value(request, "prefix");
- if (apiPrefix == NULL) {
- afb_req_fail_f(request, "argument-missing", "prefix=BindingApiPrefix missing");
- goto OnErrorExit;
- }
-
- shortname = afb_req_value(request, "sndname");
- if (shortname == NULL) {
- afb_req_fail_f(request, "argument-missing", "sndname=SndCardName missing");
- goto OnErrorExit;
- }
-
- if (index == MAX_SND_CARD) {
- afb_req_fail_f(request, "alsahal-toomany", "Fail to register sndname=[%s]", shortname);
- goto OnErrorExit;
- }
-
- // alsaGetCardId should be check to register only valid card
- responseJ = alsaProbeCardId(request);
- if (responseJ) {
- json_object *tmpJ;
- int done;
-
- cardRegistry[index] = malloc(sizeof (cardRegistry));
- cardRegistry[index]->apiprefix = strdup(apiPrefix);
- cardRegistry[index]->shortname = strdup(shortname);
-
- done = json_object_object_get_ex(responseJ, "devid", &tmpJ);
- if (done) cardRegistry[index]->devid = strdup(json_object_get_string(tmpJ));
- else cardRegistry[index]->devid = NULL;
-
- done = json_object_object_get_ex(responseJ, "longname", &tmpJ);
- if (done) cardRegistry[index]->longname = strdup(json_object_get_string(tmpJ));
- else cardRegistry[index]->longname = NULL;
-
- // make sure register close with a null value
- index++;
- cardRegistry[index] = NULL;
-
- afb_req_success(request, responseJ, NULL);
- }
-
- // If OK return sound card Alsa ID+Info
- return;
-
-OnErrorExit:
- return;
-}
-