summaryrefslogtreecommitdiffstats
path: root/HAL-afb/HAL-interface/hal-interface.c
diff options
context:
space:
mode:
Diffstat (limited to 'HAL-afb/HAL-interface/hal-interface.c')
-rw-r--r--HAL-afb/HAL-interface/hal-interface.c619
1 files changed, 300 insertions, 319 deletions
diff --git a/HAL-afb/HAL-interface/hal-interface.c b/HAL-afb/HAL-interface/hal-interface.c
index cba10d7..4d86504 100644
--- a/HAL-afb/HAL-interface/hal-interface.c
+++ b/HAL-afb/HAL-interface/hal-interface.c
@@ -25,40 +25,12 @@
alsaHalSndCardT *halSndCard;
-STATIC const char *halCtlsLabels[] = {
-
- [Master_Playback_Volume] = "Master_Playback_Volume",
- [Master_OnOff_Switch] = "Master_OnOff_Switch",
- [Master_Playback_Ramp]= "Master_Playback_Ramp",
- [PCM_Playback_Volume] = "PCM_Playback_Volume",
- [PCM_Playback_Switch] = "PCM_Playback_Switch",
- [Capture_Volume] = "Capture_Volume",
-
- [Vol_Ramp] = "Volume_Ramp",
- [Vol_Ramp_Set_Mode] = "Volume_Ramp_Mode",
- [Vol_Ramp_Set_Delay] = "Volume_Ramp_Delay",
- [Vol_Ramp_Set_Down] = "Volume_Ramp_Down",
- [Vol_Ramp_Set_Up] = "Volume_Ramp_Up",
- [Vol_Ramp_Set_Slave] = "Volume_Ramp_Slave",
-
- [EndHalCrlTag] = NULL
-};
-
-PUBLIC char *halVolRampModes[] = {
-
- [RAMP_VOL_NONE] = "None",
- [RAMP_VOL_NORMAL] = "Normal",
- [RAMP_VOL_SMOOTH] = "Smooth",
- [RAMP_VOL_EMERGENCY] = "Emergency",
-
- [EndHalVolMod] = NULL,
-
-};
// Force specific HAL to depend on ShareHalLib
-PUBLIC char* SharedHalLibVersion="1.0";
-
+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) {
@@ -67,194 +39,200 @@ STATIC void halSubscribe(afb_req request) {
}
// 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 && !strcmp (halCtls[idx].label, label)) return idx;
+STATIC int halCtlStringToIndex(const char* label) {
+ alsaHalMapT *halCtls = halSndCard->ctls;
+
+ for (int idx = 0; halCtls[idx].tag != EndHalCrlTag; idx++) {
+ if (halCtls[idx].label && !strcmp(halCtls[idx].label, label)) return idx;
}
-
+
// not found
return -1;
}
-STATIC int halCtlTagToIndex (halCtlsEnumT tag) {
- alsaHalMapT *halCtls= halSndCard->ctls;
+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;
+ 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;
+ 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();
-
- json_object_object_add(ctlHalJ, "label", json_object_new_string(halCtls[idx].label));
- json_object_object_add(ctlHalJ, "tag" , json_object_new_int(halCtls[idx].tag));
+
+ 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);
+
+ json_object_array_add(ctlsHalJ, ctlHalJ);
}
-
- afb_req_success (request, ctlsHalJ, NULL);
+
+ afb_req_success(request, ctlsHalJ, NULL);
}
-STATIC int halGetCtlIndex (afb_req request, json_object*ctlInJ) {
+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);
+ enum json_type jtype = json_object_get_type(ctlInJ);
switch (jtype) {
- case json_type_array:
- tmpJ = json_object_array_get_idx (ctlInJ, 0);
+ case json_type_array:
+ tmpJ = json_object_array_get_idx(ctlInJ, 0);
tag = json_object_get_int(tmpJ);
- index = halCtlTagToIndex(tag);
+ index = halCtlTagToIndex(tag);
break;
-
- case json_type_int:
+
+ case json_type_int:
tag = json_object_get_int(ctlInJ);
- index = halCtlTagToIndex(tag);
+ index = halCtlTagToIndex(tag);
break;
-
+
case json_type_object:
- done = json_object_object_get_ex (ctlInJ, "tag" , &tmpJ);
+ done = json_object_object_get_ex(ctlInJ, "tag", &tmpJ);
if (done) {
tag = json_object_get_int(tmpJ);
- index = halCtlTagToIndex(tag);
+ index = halCtlTagToIndex(tag);
} else {
const char *label;
- done = json_object_object_get_ex (ctlInJ, "label" , &tmpJ);
+ done = json_object_object_get_ex(ctlInJ, "label", &tmpJ);
if (!done) goto OnErrorExit;
label = json_object_get_string(tmpJ);
index = halCtlStringToIndex(label);
}
break;
-
- default:
+
+ 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;
-}
+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) {
+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, "devid", json_object_new_string(halSndCard->devid));
json_object_object_add(queryJ, "ctl", ctlsOutJ);
-
- err= afb_service_call_sync("alsacore", "setctl", queryJ, &responseJ);
- json_object_put (responseJ); // let's ignore response
-
+
+ err = afb_service_call_sync("alsacore", "setctl", 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) {
+
+PUBLIC int halSetCtlByTag(halRampEnumT tag, int value) {
json_object *ctlJ = json_object_new_array();
- alsaHalMapT *halCtls= halSndCard->ctls;
+ alsaHalMapT *halCtls = halSndCard->ctls;
int err, index;
-
- index = halCtlTagToIndex(tag);
+
+ 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)));
-
+ json_object_array_add(ctlJ, volumeNormalise(ACTION_SET, &halCtls[index].ctl, json_object_new_int(value)));
+
err = halCallAlsaSetCtls(ctlJ);
-
+
return err;
-
- OnErrorExit:
- return -1;
+
+OnErrorExit:
+ return -1;
}
// Translate high level control to low level and call lower layer
+
PUBLIC void halSetCtls(afb_req request) {
- alsaHalMapT *halCtls= halSndCard->ctls;
+ 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: {
+ case json_type_object:
+ {
ctlsOutJ = json_object_new_object();
-
+
// control is in literal form {tag=xxx, label=xxx, value=xxxx}
- index = halGetCtlIndex (request, ctlsInJ);
+ index = halGetCtlIndex(request, ctlsInJ);
if (index < 0) goto OnErrorExit;
-
- done= json_object_object_get_ex (ctlsInJ, "val" , &valuesJ);
+
+ 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;
+ 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));
+
+ 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: {
+
+ 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);
+
+ 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);
+ 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;
+ 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);
+ 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;
+ goto OnErrorExit;
}
- err = halCallAlsaSetCtls (ctlsOutJ);
+ err = halCallAlsaSetCtls(ctlsOutJ);
if (err) {
afb_req_fail_f(request, "subcall:alsacore/setctl", "%s", json_object_get_string(ctlsOutJ));
- goto OnErrorExit;
+ goto OnErrorExit;
}
-
- afb_req_success (request, NULL, NULL);
+
+ afb_req_success(request, NULL, NULL);
return;
OnErrorExit:
@@ -262,8 +240,9 @@ OnErrorExit:
};
// Remap low level controls into HAL hight level ones
+
STATIC json_object *HalGetPrepareResponse(afb_req request, json_object *ctlsJ) {
- alsaHalMapT *halCtls= halSndCard->ctls;
+ alsaHalMapT *halCtls = halSndCard->ctls;
json_object *halResponseJ;
int length;
@@ -274,14 +253,14 @@ STATIC json_object *HalGetPrepareResponse(afb_req request, json_object *ctlsJ) {
length = json_object_array_length(ctlsJ);
break;
case json_type_object:
- halResponseJ=NULL;
+ 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;
@@ -289,356 +268,358 @@ STATIC json_object *HalGetPrepareResponse(afb_req request, json_object *ctlsJ) {
// 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)) {
+ 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= (halCtlsEnumT) json_object_get_int(numidJ);
+ numid = (halCtlsTagT) json_object_get_int(numidJ);
for (int idx = 0; halCtls[idx].ctl.numid; idx++) {
- if (halCtls[idx].ctl.numid == numid) {
+ 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));
-
+ 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;
-
+ else halResponseJ = halCtlJ;
+
break;
- }
+ }
}
- if ( halCtls[idx].ctl.numid == 0) {
+ 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;
-}
-
+OnErrorExit:
+ return NULL;
+}
-STATIC json_object *halCallAlsaGetCtls (json_object *ctlsOutJ) {
+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, "devid", json_object_new_string(halSndCard->devid));
json_object_object_add(queryJ, "ctl", ctlsOutJ);
- err= afb_service_call_sync("alsacore", "getctl", queryJ, &responseJ);
+ err = afb_service_call_sync("alsacore", "getctl", 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);
+ done = json_object_object_get_ex(responseJ, "response", &responseJ);
if (!done) goto OnErrorExit;
-
+
return responseJ;
-
- OnErrorExit:
- return NULL;
+
+OnErrorExit:
+ return NULL;
}
// retrieve a single HAL control from its tag.
-PUBLIC json_object *halGetCtlByTag (halRampEnumT tag) {
+
+PUBLIC json_object *halGetCtlByTag(halRampEnumT tag) {
json_object *responseJ, *valJ;
- alsaHalMapT *halCtls= halSndCard->ctls;
+ alsaHalMapT *halCtls = halSndCard->ctls;
int done, index;
-
- index = halCtlTagToIndex(tag);
+
+ 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;
+
+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;
+ 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: {
+ case json_type_object:
+ {
- index = halGetCtlIndex (request, ctlsInJ);
+ index = halGetCtlIndex(request, ctlsInJ);
if (index < 0) goto OnErrorExit;
- json_object_array_add (ctlsOutJ, json_object_new_int(halCtls[index].ctl.numid));
+ 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);
+
+ 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));
+ 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;
+ goto OnErrorExit;
}
// Call now level CTL
- responseJ = halCallAlsaGetCtls (ctlsOutJ);
+ responseJ = halCallAlsaGetCtls(ctlsOutJ);
if (!responseJ) {
afb_req_fail_f(request, "subcall:alsacore/getctl", "%s", json_object_get_string(responseJ));
- goto OnErrorExit;
+ goto OnErrorExit;
}
-
+
// map back low level response to HAL ctl with normalised values
- json_object *halResponse = HalGetPrepareResponse(request, responseJ);
+ json_object *halResponse = HalGetPrepareResponse(request, responseJ);
if (!halResponse) goto OnErrorExit;
-
- afb_req_success (request, halResponse, NULL);
+
+ afb_req_success(request, halResponse, NULL);
return;
OnErrorExit:
return;
};
-
-STATIC int UpdateOneSndCtl (alsaHalCtlMapT *ctl, json_object *sndCtlJ) {
+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);
-
+ 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);
-
+ 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)) {
+ if (json_object_object_get_ex(sndCtlJ, "tlv", &tmpJ)) {
json_object *dbscaleJ;
-
- if (!json_object_object_get_ex (tmpJ, "dbscale" , &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);
+ 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;
+
+OnErrorExit:
+ return -1;
}
// this is call when after all bindings are loaded
-PUBLIC int halServiceInit (const char *apiPrefix, alsaHalSndCardT *alsaHalSndCard) {
+
+PUBLIC int halServiceInit(const char *apiPrefix, alsaHalSndCardT *alsaHalSndCard) {
int err;
json_object *queryurl, *responseJ, *devidJ, *ctlsJ, *tmpJ;
- alsaHalMapT *halCtls= alsaHalSndCard->ctls;
-
+ 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 (!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;
+ 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);
+
+ 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));
+ 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));
+ 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));
-
+ 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++) {
+ ctlsJ = json_object_new_array();
+ for (int idx = 0; (halCtls[idx].ctl.name || halCtls[idx].ctl.numid); idx++) {
json_object *ctlJ;
-
- // map HAL ctlTad with halCrlLabel to simplify set/get ctl operations using Labels
- halCtls[idx].label = halCtlsLabels[halCtls[idx].tag];
-
- if (halCtls[idx].cb.callback != NULL) {
- ctlJ = json_object_new_object();
- 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, "value", 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);
+
+ // Try to find best equivalent label for tag
+ if (halCtls[idx].tag >StartHalCrlTag && halCtls[idx].tag < EndHalCrlTag && halCtls[idx].label != 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;
+ }
+
+ 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, "value", 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_array_add(ctlsJ, ctlJ);
- } else {
- 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));
- json_object_array_add(ctlsJ, ctlJ);
- }
+ 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) {
+ 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);
+ 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));
+ 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);
+ 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;
+ 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) ;
+ 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;
+ 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);
+ 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");
+ AFB_ERROR("Fail subscribing to ALSA lowlevel events");
goto OnErrorExit;
}
-
- return (0);
-
- 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;
+ 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);
+
+ 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);
-
+ 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++) {
+ 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);
+ 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 = "ctl-list", .callback = halListCtls , .info="List AGL normalised Sound Controls"},
- { .verb = "ctl-get", .callback = halGetCtls , .info="Get one/many sound controls"},
- { .verb = "ctl-set", .callback = halSetCtls , .info="Set one/many sound controls"},
- { .verb = "evt-sub", .callback = halSubscribe, .info="Subscribe to HAL events"},
+ { .verb = "ping", .callback = pingtest, .info = "ping test for API"},
+ { .verb = "ctl-list", .callback = halListCtls, .info = "List AGL normalised Sound Controls"},
+ { .verb = "ctl-get", .callback = halGetCtls, .info = "Get one/many sound controls"},
+ { .verb = "ctl-set", .callback = halSetCtls, .info = "Set one/many sound controls"},
+ { .verb = "evt-sub", .callback = halSubscribe, .info = "Subscribe to HAL events"},
{ .verb = NULL} /* marker for end of the array */
};