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-rw-r--r--ALSA-afb/Alsa-SetGet.c567
1 files changed, 288 insertions, 279 deletions
diff --git a/ALSA-afb/Alsa-SetGet.c b/ALSA-afb/Alsa-SetGet.c
index 5a41ec1..04f2929 100644
--- a/ALSA-afb/Alsa-SetGet.c
+++ b/ALSA-afb/Alsa-SetGet.c
@@ -23,84 +23,84 @@
https://github.com/DongheonKim/android_hardware_alsa-sound/blob/master/ALSAControl.cpp (ALSA low level API)
https://www.kernel.org/doc/html/v4.11/sound/index.html
-*/
+ */
#define _GNU_SOURCE // needed for vasprintf
#include "Alsa-ApiHat.h"
-PUBLIC void NumidsListParse (ActionSetGetT action, queryValuesT *queryValues, ctlRequestT *ctlRequest) {
+PUBLIC void NumidsListParse(ActionSetGetT action, queryValuesT *queryValues, ctlRequestT *ctlRequest) {
int length;
- for (int idx=0; idx < queryValues->count; idx ++) {
+ for (int idx = 0; idx < queryValues->count; idx++) {
json_object *jId, *valuesJ;
- ctlRequest[idx].used=0;
+ ctlRequest[idx].used = 0;
ctlRequest[idx].valuesJ = NULL;
-
+
// when only one NUMID is provided it might not be encapsulated in a JSON array
- if (json_type_array == json_object_get_type(queryValues->numidsJ)) ctlRequest[idx].jToken = json_object_array_get_idx (queryValues->numidsJ, idx);
- else ctlRequest[idx].jToken=queryValues->numidsJ;
-
- enum json_type jtype=json_object_get_type(ctlRequest[idx].jToken);
+ if (json_type_array == json_object_get_type(queryValues->numidsJ)) ctlRequest[idx].jToken = json_object_array_get_idx(queryValues->numidsJ, idx);
+ else ctlRequest[idx].jToken = queryValues->numidsJ;
+
+ enum json_type jtype = json_object_get_type(ctlRequest[idx].jToken);
switch (jtype) {
-
+
case json_type_int:
// if NUMID is not an array then it should be an integer numid with no value
- ctlRequest[idx].numId = json_object_get_int (ctlRequest[idx].jToken);
+ ctlRequest[idx].numId = json_object_get_int(ctlRequest[idx].jToken);
// Special SET simple short numid form [numid, [VAL1...VALX]]
if (action == ACTION_SET && queryValues->count == 2) {
- ctlRequest[idx].valuesJ = json_object_array_get_idx (queryValues->numidsJ, 1);
- queryValues->count =1; //In this form count==2 , when only one numid is to set
- idx ++;
- continue;
+ ctlRequest[idx].valuesJ = json_object_array_get_idx(queryValues->numidsJ, 1);
+ queryValues->count = 1; //In this form count==2 , when only one numid is to set
+ idx++;
+ continue;
} else
- break;
+ break;
- case json_type_array:
+ case json_type_array:
// NUMID is an array 1st slot should be numid, optionally values may come after
- length=json_object_array_length (ctlRequest[idx].jToken);
+ length = json_object_array_length(ctlRequest[idx].jToken);
// numid must be in 1st slot of numid json array
- ctlRequest[idx].numId =json_object_get_int(json_object_array_get_idx (ctlRequest[idx].jToken, 0));
- if (action == ACTION_GET) continue;
+ ctlRequest[idx].numId = json_object_get_int(json_object_array_get_idx(ctlRequest[idx].jToken, 0));
+ if (action == ACTION_GET) continue;
// In Write mode second value should be the value
if (action == ACTION_SET && length == 2) {
- ctlRequest[idx].valuesJ = json_object_array_get_idx (ctlRequest[idx].jToken, 1);
- continue;
+ ctlRequest[idx].valuesJ = json_object_array_get_idx(ctlRequest[idx].jToken, 1);
+ continue;
}
// no numid value
- ctlRequest[idx].used=-1;
+ ctlRequest[idx].used = -1;
break;
-
+
case json_type_object:
// numid+values formated as {id:xxx, val:[aa,bb...,nn]}
- if (!json_object_object_get_ex (ctlRequest[idx].jToken,"id", &jId) || !json_object_object_get_ex (ctlRequest[idx].jToken,"val",&valuesJ)) {
+ if (!json_object_object_get_ex(ctlRequest[idx].jToken, "id", &jId) || !json_object_object_get_ex(ctlRequest[idx].jToken, "val", &valuesJ)) {
AFB_NOTICE("Invalid Json=%s missing 'id'|'val'", json_object_get_string(ctlRequest[idx].jToken));
- ctlRequest[idx].used=-1;
+ ctlRequest[idx].used = -1;
} else {
- ctlRequest[idx].numId =json_object_get_int(jId);
- if (action == ACTION_SET) ctlRequest[idx].valuesJ=valuesJ;
+ ctlRequest[idx].numId = json_object_get_int(jId);
+ if (action == ACTION_SET) ctlRequest[idx].valuesJ = valuesJ;
}
break;
-
- default:
- ctlRequest[idx].used=-1;
+
+ default:
+ ctlRequest[idx].used = -1;
}
}
}
-STATIC json_object *DB2StringJsonOject (long dB) {
+STATIC json_object *DB2StringJsonOject(long dB) {
char label [20];
- if (dB < 0) {
- snprintf(label, sizeof(label), "-%li.%02lidB", -dB / 100, -dB % 100);
- } else {
- snprintf(label, sizeof(label), "%li.%02lidB", dB / 100, dB % 100);
- }
+ if (dB < 0) {
+ snprintf(label, sizeof (label), "-%li.%02lidB", -dB / 100, -dB % 100);
+ } else {
+ snprintf(label, sizeof (label), "%li.%02lidB", dB / 100, dB % 100);
+ }
// json function takes care of string copy
- return (json_object_new_string (label));
+ return (json_object_new_string(label));
}
@@ -160,8 +160,8 @@ STATIC json_object *decodeTlv(unsigned int *tlv, unsigned int tlv_size, int mode
snprintf(label, sizeof (label), "0x%08x,", tlv[idx++]);
json_object_array_add(arrayJson, json_object_new_string(label));
} else {
- json_object_array_add(arrayJson, json_object_new_int(tlv[idx++]));
- }
+ json_object_array_add(arrayJson, json_object_new_int(tlv[idx++]));
+ }
size -= (unsigned int) sizeof (unsigned int);
}
json_object_object_add(dbscaleJson, "array", arrayJson);
@@ -171,10 +171,10 @@ STATIC json_object *decodeTlv(unsigned int *tlv, unsigned int tlv_size, int mode
json_object_object_add(dbscaleJson, "step", DB2StringJsonOject(tlv[3] & 0xffff));
json_object_object_add(dbscaleJson, "mute", DB2StringJsonOject((tlv[3] >> 16) & 1));
} else {
- json_object_object_add(dbscaleJson, "min", json_object_new_int((int) tlv[2]));
+ json_object_object_add(dbscaleJson, "min", json_object_new_int((int) tlv[2]));
json_object_object_add(dbscaleJson, "step", json_object_new_int(tlv[3] & 0xffff));
- json_object_object_add(dbscaleJson, "mute", json_object_new_int((tlv[3] >> 16) & 1));
- }
+ json_object_object_add(dbscaleJson, "mute", json_object_new_int((tlv[3] >> 16) & 1));
+ }
}
json_object_object_add(decodeTlvJson, "dbscale", dbscaleJson);
break;
@@ -192,8 +192,8 @@ STATIC json_object *decodeTlv(unsigned int *tlv, unsigned int tlv_size, int mode
snprintf(label, sizeof (label), "0x%08x,", tlv[idx++]);
json_object_array_add(arrayJson, json_object_new_string(label));
} else {
- json_object_array_add(arrayJson, json_object_new_int(tlv[idx++]));
- }
+ json_object_array_add(arrayJson, json_object_new_int(tlv[idx++]));
+ }
size -= (unsigned int) sizeof (unsigned int);
}
json_object_object_add(dbLinearJson, "offset", arrayJson);
@@ -203,8 +203,8 @@ STATIC json_object *decodeTlv(unsigned int *tlv, unsigned int tlv_size, int mode
json_object_object_add(dbLinearJson, "max", DB2StringJsonOject((int) tlv[3]));
} else {
json_object_object_add(dbLinearJson, "min", json_object_new_int((int) tlv[2]));
- json_object_object_add(dbLinearJson, "max", json_object_new_int((int) tlv[3]));
- }
+ json_object_object_add(dbLinearJson, "max", json_object_new_int((int) tlv[3]));
+ }
}
json_object_object_add(decodeTlvJson, "dblinear", dbLinearJson);
break;
@@ -223,8 +223,8 @@ STATIC json_object *decodeTlv(unsigned int *tlv, unsigned int tlv_size, int mode
snprintf(label, sizeof (label), "0x%08x,", tlv[idx++]);
json_object_array_add(arrayJson, json_object_new_string(label));
} else {
- json_object_array_add(arrayJson, json_object_new_int(tlv[idx++]));
- }
+ json_object_array_add(arrayJson, json_object_new_int(tlv[idx++]));
+ }
size -= (unsigned int) sizeof (unsigned int);
}
json_object_object_add(dbRangeJson, "dbrange", arrayJson);
@@ -257,8 +257,8 @@ STATIC json_object *decodeTlv(unsigned int *tlv, unsigned int tlv_size, int mode
snprintf(label, sizeof (label), "0x%08x,", tlv[idx++]);
json_object_array_add(arrayJson, json_object_new_string(label));
} else {
- json_object_array_add(arrayJson, json_object_new_int(tlv[idx++]));
- }
+ json_object_array_add(arrayJson, json_object_new_int(tlv[idx++]));
+ }
size -= (unsigned int) sizeof (unsigned int);
}
json_object_object_add(dbMinMaxJson, "array", arrayJson);
@@ -269,8 +269,8 @@ STATIC json_object *decodeTlv(unsigned int *tlv, unsigned int tlv_size, int mode
json_object_object_add(dbMinMaxJson, "max", DB2StringJsonOject((int) tlv[3]));
} else {
json_object_object_add(dbMinMaxJson, "min", json_object_new_int((int) tlv[2]));
- json_object_object_add(dbMinMaxJson, "max", json_object_new_int((int) tlv[3]));
- }
+ json_object_object_add(dbMinMaxJson, "max", json_object_new_int((int) tlv[3]));
+ }
}
if (type == SND_CTL_TLVT_DB_MINMAX_MUTE) {
@@ -325,144 +325,148 @@ STATIC json_object *decodeTlv(unsigned int *tlv, unsigned int tlv_size, int mode
// retreive info for one given card
-STATIC json_object* alsaCardProbe (const char *rqtSndId) {
- const char *info, *name;
+
+STATIC json_object* alsaCardProbe(const char *rqtSndId) {
+ const char *info, *name;
const char *devid, *driver;
json_object *ctlDev;
- snd_ctl_t *handle;
+ snd_ctl_t *handle;
snd_ctl_card_info_t *cardinfo;
int err;
if ((err = snd_ctl_open(&handle, rqtSndId, 0)) < 0) {
- AFB_INFO ("alsaCardProbe '%s' Not Found", rqtSndId);
+ AFB_INFO("alsaCardProbe '%s' Not Found", rqtSndId);
return NULL;
}
snd_ctl_card_info_alloca(&cardinfo);
if ((err = snd_ctl_card_info(handle, cardinfo)) < 0) {
snd_ctl_close(handle);
- AFB_WARNING ("SndCard '%s' info error: %s", rqtSndId, snd_strerror(err));
+ AFB_WARNING("SndCard '%s' info error: %s", rqtSndId, snd_strerror(err));
return NULL;
}
// start a new json object to store card info
ctlDev = json_object_new_object();
- devid= snd_ctl_card_info_get_id(cardinfo);
- json_object_object_add (ctlDev, "devid" , json_object_new_string(devid));
- name = snd_ctl_card_info_get_name(cardinfo);
- json_object_object_add (ctlDev, "name", json_object_new_string (name));
+ devid = snd_ctl_card_info_get_id(cardinfo);
+ json_object_object_add(ctlDev, "devid", json_object_new_string(devid));
+ name = snd_ctl_card_info_get_name(cardinfo);
+ json_object_object_add(ctlDev, "name", json_object_new_string(name));
if (AFB_GET_VERBOSITY > 1) {
- json_object_object_add (ctlDev, "devid", json_object_new_string(rqtSndId));
- driver= snd_ctl_card_info_get_driver(cardinfo);
- json_object_object_add (ctlDev, "driver" , json_object_new_string(driver));
- info = strdup(snd_ctl_card_info_get_longname (cardinfo));
- json_object_object_add (ctlDev, "info" , json_object_new_string (info));
- AFB_INFO ("AJG: Soundcard Devid=%-5s devid=%-7s Name=%s\n", rqtSndId, devid, info);
+ json_object_object_add(ctlDev, "devid", json_object_new_string(rqtSndId));
+ driver = snd_ctl_card_info_get_driver(cardinfo);
+ json_object_object_add(ctlDev, "driver", json_object_new_string(driver));
+ info = strdup(snd_ctl_card_info_get_longname(cardinfo));
+ json_object_object_add(ctlDev, "info", json_object_new_string(info));
+ AFB_INFO("AJG: Soundcard Devid=%-5s devid=%-7s Name=%s\n", rqtSndId, devid, info);
}
// free card handle and return info
- snd_ctl_close(handle);
+ snd_ctl_close(handle);
return (ctlDev);
}
// Loop on every potential Sound card and register active one
-PUBLIC void alsaGetInfo (afb_req request) {
- int card;
+
+PUBLIC void alsaGetInfo(afb_req request) {
+ int card;
json_object *ctlDev, *ctlDevs;
char devid[32];
-
+
const char *rqtSndId = afb_req_value(request, "devid");
// if no specific card requested loop on all
if (rqtSndId != NULL) {
// only one card was requested let's probe it
- ctlDev = alsaCardProbe (rqtSndId);
+ ctlDev = alsaCardProbe(rqtSndId);
if (ctlDev != NULL) afb_req_success(request, ctlDev, NULL);
- else afb_req_fail_f (request, "sndscard-notfound", "SndCard '%s' Not Found", rqtSndId);
-
+ else afb_req_fail_f(request, "sndscard-notfound", "SndCard '%s' Not Found", rqtSndId);
+
} else {
// return an array of ctlDev
- ctlDevs =json_object_new_array();
+ ctlDevs = json_object_new_array();
// loop on potential card number
- for (card =0; card < MAX_SND_CARD; card++) {
+ for (card = 0; card < MAX_SND_CARD; card++) {
// build card devid and probe it
- snprintf (devid, sizeof(devid), "hw:%i", card);
- ctlDev = alsaCardProbe (devid);
+ snprintf(devid, sizeof (devid), "hw:%i", card);
+ ctlDev = alsaCardProbe(devid);
// Alsa has hole within card list [ignore them]
if (ctlDev != NULL) {
// add current ctlDev to ctlDevs object
- json_object_array_add (ctlDevs, ctlDev);
- }
+ json_object_array_add(ctlDevs, ctlDev);
+ }
}
- afb_req_success (request, ctlDevs, NULL);
+ afb_req_success(request, ctlDevs, NULL);
}
}
// pack Alsa element's ACL into a JSON object
-STATIC json_object *getControlAcl (snd_ctl_elem_info_t *info) {
+
+STATIC json_object *getControlAcl(snd_ctl_elem_info_t *info) {
json_object * jsonAclCtl = json_object_new_object();
- json_object_object_add (jsonAclCtl, "read" , json_object_new_boolean(snd_ctl_elem_info_is_readable(info)));
- json_object_object_add (jsonAclCtl, "write" , json_object_new_boolean(snd_ctl_elem_info_is_writable(info)));
- json_object_object_add (jsonAclCtl, "inact" , json_object_new_boolean(snd_ctl_elem_info_is_inactive(info)));
- json_object_object_add (jsonAclCtl, "volat" , json_object_new_boolean(snd_ctl_elem_info_is_volatile(info)));
- json_object_object_add (jsonAclCtl, "lock" , json_object_new_boolean(snd_ctl_elem_info_is_locked(info)));
+ json_object_object_add(jsonAclCtl, "read", json_object_new_boolean(snd_ctl_elem_info_is_readable(info)));
+ json_object_object_add(jsonAclCtl, "write", json_object_new_boolean(snd_ctl_elem_info_is_writable(info)));
+ json_object_object_add(jsonAclCtl, "inact", json_object_new_boolean(snd_ctl_elem_info_is_inactive(info)));
+ json_object_object_add(jsonAclCtl, "volat", json_object_new_boolean(snd_ctl_elem_info_is_volatile(info)));
+ json_object_object_add(jsonAclCtl, "lock", json_object_new_boolean(snd_ctl_elem_info_is_locked(info)));
// if TLV is readable we insert its ACL
if (!snd_ctl_elem_info_is_tlv_readable(info)) {
json_object * jsonTlv = json_object_new_object();
- json_object_object_add (jsonTlv, "read" , json_object_new_boolean(snd_ctl_elem_info_is_tlv_readable(info)));
- json_object_object_add (jsonTlv, "write" , json_object_new_boolean(snd_ctl_elem_info_is_tlv_writable(info)));
- json_object_object_add (jsonTlv, "command", json_object_new_boolean(snd_ctl_elem_info_is_tlv_commandable(info)));
+ json_object_object_add(jsonTlv, "read", json_object_new_boolean(snd_ctl_elem_info_is_tlv_readable(info)));
+ json_object_object_add(jsonTlv, "write", json_object_new_boolean(snd_ctl_elem_info_is_tlv_writable(info)));
+ json_object_object_add(jsonTlv, "command", json_object_new_boolean(snd_ctl_elem_info_is_tlv_commandable(info)));
- json_object_object_add (jsonAclCtl, "tlv", jsonTlv);
+ json_object_object_add(jsonAclCtl, "tlv", jsonTlv);
}
return (jsonAclCtl);
}
// process ALSA control and store resulting value into ctlRequest
-PUBLIC int alsaSetSingleCtl (snd_ctl_t *ctlDev, snd_ctl_elem_id_t *elemId, ctlRequestT *ctlRequest) {
+
+PUBLIC int alsaSetSingleCtl(snd_ctl_t *ctlDev, snd_ctl_elem_id_t *elemId, ctlRequestT *ctlRequest) {
snd_ctl_elem_value_t *elemData;
- snd_ctl_elem_info_t *elemInfo;
- int count, length, err, valueIsArray=0;
+ snd_ctl_elem_info_t *elemInfo;
+ int count, length, err, valueIsArray = 0;
// let's make sure we are processing the right control
- if (ctlRequest->numId != snd_ctl_elem_id_get_numid (elemId)) goto OnErrorExit;
-
+ if (ctlRequest->numId != snd_ctl_elem_id_get_numid(elemId)) goto OnErrorExit;
+
// set info event ID and get value
snd_ctl_elem_info_alloca(&elemInfo);
- snd_ctl_elem_info_set_id(elemInfo, elemId); // map ctlInfo to ctlId elemInfo is updated !!!
+ snd_ctl_elem_info_set_id(elemInfo, elemId); // map ctlInfo to ctlId elemInfo is updated !!!
if (snd_ctl_elem_info(ctlDev, elemInfo) < 0) {
- AFB_NOTICE( "Fail to load ALSA NUMID=%d Values='%s'", ctlRequest->numId, json_object_get_string(ctlRequest->valuesJ));
+ AFB_NOTICE("Fail to load ALSA NUMID=%d Values='%s'", ctlRequest->numId, json_object_get_string(ctlRequest->valuesJ));
goto OnErrorExit;
}
-
+
if (!snd_ctl_elem_info_is_writable(elemInfo)) {
- AFB_NOTICE( "Not Writable ALSA NUMID=%d Values='%s'", ctlRequest->numId, json_object_get_string(ctlRequest->valuesJ));
+ AFB_NOTICE("Not Writable ALSA NUMID=%d Values='%s'", ctlRequest->numId, json_object_get_string(ctlRequest->valuesJ));
goto OnErrorExit;
}
-
- count = snd_ctl_elem_info_get_count (elemInfo);
+
+ count = snd_ctl_elem_info_get_count(elemInfo);
if (count == 0) goto OnErrorExit;
-
- enum json_type jtype= json_object_get_type(ctlRequest->valuesJ);
+
+ enum json_type jtype = json_object_get_type(ctlRequest->valuesJ);
switch (jtype) {
case json_type_array:
- length = json_object_array_length (ctlRequest->valuesJ);
- valueIsArray=1;
+ length = json_object_array_length(ctlRequest->valuesJ);
+ valueIsArray = 1;
break;
case json_type_int:
- length=1;
- valueIsArray=0;
- break;
+ length = 1;
+ valueIsArray = 0;
+ break;
default:
length = 0;
break;
@@ -470,193 +474,198 @@ PUBLIC int alsaSetSingleCtl (snd_ctl_t *ctlDev, snd_ctl_elem_id_t *elemId, ctlRe
if (length == 0) {
- AFB_NOTICE( "Invalid values NUMID='%d' Values='%s' count='%d' wanted='%d'", ctlRequest->numId, json_object_get_string(ctlRequest->valuesJ), length, count);
+ AFB_NOTICE("Invalid values NUMID='%d' Values='%s' count='%d' wanted='%d'", ctlRequest->numId, json_object_get_string(ctlRequest->valuesJ), length, count);
goto OnErrorExit;
}
- snd_ctl_elem_value_alloca(&elemData);
- snd_ctl_elem_value_set_id(elemData, elemId); // map ctlInfo to ctlId elemInfo is updated !!!
- if (snd_ctl_elem_read(ctlDev, elemData) < 0) goto OnErrorExit;
+ snd_ctl_elem_value_alloca(&elemData);
+ snd_ctl_elem_value_set_id(elemData, elemId); // map ctlInfo to ctlId elemInfo is updated !!!
+ if (snd_ctl_elem_read(ctlDev, elemData) < 0) goto OnErrorExit;
// Loop on every control value and push to sndcard
- for (int index=0; index < count; index++) {
+ for (int index = 0; index < count; index++) {
json_object *element;
int value;
// when not enough value duplicate last provided one
- if (!valueIsArray) element= ctlRequest->valuesJ;
+ if (!valueIsArray) element = ctlRequest->valuesJ;
else {
- if (index < length) element= json_object_array_get_idx(ctlRequest->valuesJ, index);
- else element= json_object_array_get_idx(ctlRequest->valuesJ, length-1);
+ if (index < length) element = json_object_array_get_idx(ctlRequest->valuesJ, index);
+ else element = json_object_array_get_idx(ctlRequest->valuesJ, length - 1);
}
-
- value= json_object_get_int (element);
+
+ value = json_object_get_int(element);
snd_ctl_elem_value_set_integer(elemData, index, value);
}
-
+
err = snd_ctl_elem_write(ctlDev, elemData);
if (err < 0) {
- AFB_NOTICE( "Fail to write ALSA NUMID=%d Values='%s' Error=%s", ctlRequest->numId, json_object_get_string(ctlRequest->valuesJ), snd_strerror(err));
+ AFB_NOTICE("Fail to write ALSA NUMID=%d Values='%s' Error=%s", ctlRequest->numId, json_object_get_string(ctlRequest->valuesJ), snd_strerror(err));
goto OnErrorExit;
}
-
- ctlRequest->used=1;
+
+ ctlRequest->used = 1;
return 0;
-
- OnErrorExit:
- ctlRequest->used=-1;
- return -1;
+
+OnErrorExit:
+ ctlRequest->used = -1;
+ return -1;
}
// process ALSA control and store then into ctlRequest
-PUBLIC int alsaGetSingleCtl (snd_ctl_t *ctlDev, snd_ctl_elem_id_t *elemId, ctlRequestT *ctlRequest, halQueryMode queryMode) {
- snd_ctl_elem_type_t elemType;
+
+PUBLIC int alsaGetSingleCtl(snd_ctl_t *ctlDev, snd_ctl_elem_id_t *elemId, ctlRequestT *ctlRequest, halQueryMode queryMode) {
+ snd_ctl_elem_type_t elemType;
snd_ctl_elem_value_t *elemData;
- snd_ctl_elem_info_t *elemInfo;
+ snd_ctl_elem_info_t *elemInfo;
int count, idx, err;
-
+
// set info event ID and get value
snd_ctl_elem_info_alloca(&elemInfo);
- snd_ctl_elem_info_set_id(elemInfo, elemId);
+ snd_ctl_elem_info_set_id(elemInfo, elemId);
if (snd_ctl_elem_info(ctlDev, elemInfo) < 0) goto OnErrorExit;
- count = snd_ctl_elem_info_get_count (elemInfo);
+ count = snd_ctl_elem_info_get_count(elemInfo);
if (count == 0) goto OnErrorExit;
-
+
if (!snd_ctl_elem_info_is_readable(elemInfo)) goto OnErrorExit;
- elemType = snd_ctl_elem_info_get_type(elemInfo);
+ elemType = snd_ctl_elem_info_get_type(elemInfo);
- snd_ctl_elem_value_alloca(&elemData);
- snd_ctl_elem_value_set_id(elemData, elemId);
+ snd_ctl_elem_value_alloca(&elemData);
+ snd_ctl_elem_value_set_id(elemData, elemId);
if (snd_ctl_elem_read(ctlDev, elemData) < 0) goto OnErrorExit;
-
- int numid= snd_ctl_elem_info_get_numid(elemInfo);
- ctlRequest->valuesJ= json_object_new_object();
- json_object_object_add (ctlRequest->valuesJ,"id" , json_object_new_int(numid));
- if (queryMode >= 1) json_object_object_add (ctlRequest->valuesJ,"name" , json_object_new_string(snd_ctl_elem_id_get_name (elemId)));
- if (queryMode >= 2) json_object_object_add (ctlRequest->valuesJ,"iface" , json_object_new_string(snd_ctl_elem_iface_name(snd_ctl_elem_id_get_interface(elemId))));
- if (queryMode >= 3) json_object_object_add (ctlRequest->valuesJ,"actif", json_object_new_boolean(!snd_ctl_elem_info_is_inactive(elemInfo)));
+ int numid = snd_ctl_elem_info_get_numid(elemInfo);
+
+ ctlRequest->valuesJ = json_object_new_object();
+ json_object_object_add(ctlRequest->valuesJ, "id", json_object_new_int(numid));
+ if (queryMode >= 1) json_object_object_add(ctlRequest->valuesJ, "name", json_object_new_string(snd_ctl_elem_id_get_name(elemId)));
+ if (queryMode >= 2) json_object_object_add(ctlRequest->valuesJ, "iface", json_object_new_string(snd_ctl_elem_iface_name(snd_ctl_elem_id_get_interface(elemId))));
+ if (queryMode >= 3) json_object_object_add(ctlRequest->valuesJ, "actif", json_object_new_boolean(!snd_ctl_elem_info_is_inactive(elemInfo)));
json_object *jsonValuesCtl = json_object_new_array();
for (idx = 0; idx < count; idx++) { // start from one in amixer.c !!!
switch (elemType) {
- case SND_CTL_ELEM_TYPE_BOOLEAN: {
- json_object_array_add (jsonValuesCtl, json_object_new_boolean (snd_ctl_elem_value_get_boolean(elemData, idx)));
+ case SND_CTL_ELEM_TYPE_BOOLEAN:
+ {
+ json_object_array_add(jsonValuesCtl, json_object_new_boolean(snd_ctl_elem_value_get_boolean(elemData, idx)));
break;
- }
- case SND_CTL_ELEM_TYPE_INTEGER:
- json_object_array_add (jsonValuesCtl, json_object_new_int ((int)snd_ctl_elem_value_get_integer(elemData, idx)));
+ }
+ case SND_CTL_ELEM_TYPE_INTEGER:
+ json_object_array_add(jsonValuesCtl, json_object_new_int((int) snd_ctl_elem_value_get_integer(elemData, idx)));
break;
- case SND_CTL_ELEM_TYPE_INTEGER64:
- json_object_array_add (jsonValuesCtl, json_object_new_int64 (snd_ctl_elem_value_get_integer64(elemData, idx)));
+ case SND_CTL_ELEM_TYPE_INTEGER64:
+ json_object_array_add(jsonValuesCtl, json_object_new_int64(snd_ctl_elem_value_get_integer64(elemData, idx)));
break;
- case SND_CTL_ELEM_TYPE_ENUMERATED:
- json_object_array_add (jsonValuesCtl, json_object_new_int (snd_ctl_elem_value_get_enumerated(elemData, idx)));
+ case SND_CTL_ELEM_TYPE_ENUMERATED:
+ json_object_array_add(jsonValuesCtl, json_object_new_int(snd_ctl_elem_value_get_enumerated(elemData, idx)));
break;
- case SND_CTL_ELEM_TYPE_BYTES:
- json_object_array_add (jsonValuesCtl, json_object_new_int ((int)snd_ctl_elem_value_get_byte(elemData, idx)));
+ case SND_CTL_ELEM_TYPE_BYTES:
+ json_object_array_add(jsonValuesCtl, json_object_new_int((int) snd_ctl_elem_value_get_byte(elemData, idx)));
break;
- case SND_CTL_ELEM_TYPE_IEC958: {
+ case SND_CTL_ELEM_TYPE_IEC958:
+ {
json_object *jsonIec958Ctl = json_object_new_object();
snd_aes_iec958_t iec958;
snd_ctl_elem_value_get_iec958(elemData, &iec958);
- json_object_object_add (jsonIec958Ctl,"AES0",json_object_new_int(iec958.status[0]));
- json_object_object_add (jsonIec958Ctl,"AES1",json_object_new_int(iec958.status[1]));
- json_object_object_add (jsonIec958Ctl,"AES2",json_object_new_int(iec958.status[2]));
- json_object_object_add (jsonIec958Ctl,"AES3",json_object_new_int(iec958.status[3]));
- json_object_array_add (jsonValuesCtl, jsonIec958Ctl);
+ json_object_object_add(jsonIec958Ctl, "AES0", json_object_new_int(iec958.status[0]));
+ json_object_object_add(jsonIec958Ctl, "AES1", json_object_new_int(iec958.status[1]));
+ json_object_object_add(jsonIec958Ctl, "AES2", json_object_new_int(iec958.status[2]));
+ json_object_object_add(jsonIec958Ctl, "AES3", json_object_new_int(iec958.status[3]));
+ json_object_array_add(jsonValuesCtl, jsonIec958Ctl);
break;
- }
- default:
- json_object_array_add (jsonValuesCtl, json_object_new_string ("?unknown?"));
+ }
+ default:
+ json_object_array_add(jsonValuesCtl, json_object_new_string("?unknown?"));
break;
}
}
- json_object_object_add (ctlRequest->valuesJ,"val",jsonValuesCtl);
+ json_object_object_add(ctlRequest->valuesJ, "val", jsonValuesCtl);
- if (queryMode >= 1) { // in simple mode do not print usable values
+ if (queryMode >= 1) { // in simple mode do not print usable values
json_object *jsonClassCtl = json_object_new_object();
- json_object_object_add (jsonClassCtl,"type" , json_object_new_int(elemType));
- json_object_object_add (jsonClassCtl,"count", json_object_new_int(count));
+ json_object_object_add(jsonClassCtl, "type", json_object_new_int(elemType));
+ json_object_object_add(jsonClassCtl, "count", json_object_new_int(count));
switch (elemType) {
- case SND_CTL_ELEM_TYPE_INTEGER:
- json_object_object_add (jsonClassCtl,"min", json_object_new_int((int)snd_ctl_elem_info_get_min(elemInfo)));
- json_object_object_add (jsonClassCtl,"max", json_object_new_int((int)snd_ctl_elem_info_get_max(elemInfo)));
- json_object_object_add (jsonClassCtl,"step", json_object_new_int((int)snd_ctl_elem_info_get_step(elemInfo)));
- break;
- case SND_CTL_ELEM_TYPE_INTEGER64:
- json_object_object_add (jsonClassCtl,"min", json_object_new_int64(snd_ctl_elem_info_get_min64(elemInfo)));
- json_object_object_add (jsonClassCtl,"max", json_object_new_int64(snd_ctl_elem_info_get_max64(elemInfo)));
- json_object_object_add (jsonClassCtl,"step", json_object_new_int64(snd_ctl_elem_info_get_step64(elemInfo)));
- break;
- case SND_CTL_ELEM_TYPE_ENUMERATED: {
- unsigned int item, items = snd_ctl_elem_info_get_items(elemInfo);
- json_object *jsonEnum = json_object_new_array();
-
- for (item = 0; item < items; item++) {
- snd_ctl_elem_info_set_item(elemInfo, item);
- if ((err = snd_ctl_elem_info(ctlDev, elemInfo)) >= 0) {
- json_object_array_add (jsonEnum, json_object_new_string(snd_ctl_elem_info_get_item_name(elemInfo)));
- }
- }
- json_object_object_add (jsonClassCtl, "enums",jsonEnum);
- break;
+ case SND_CTL_ELEM_TYPE_INTEGER:
+ json_object_object_add(jsonClassCtl, "min", json_object_new_int((int) snd_ctl_elem_info_get_min(elemInfo)));
+ json_object_object_add(jsonClassCtl, "max", json_object_new_int((int) snd_ctl_elem_info_get_max(elemInfo)));
+ json_object_object_add(jsonClassCtl, "step", json_object_new_int((int) snd_ctl_elem_info_get_step(elemInfo)));
+ break;
+ case SND_CTL_ELEM_TYPE_INTEGER64:
+ json_object_object_add(jsonClassCtl, "min", json_object_new_int64(snd_ctl_elem_info_get_min64(elemInfo)));
+ json_object_object_add(jsonClassCtl, "max", json_object_new_int64(snd_ctl_elem_info_get_max64(elemInfo)));
+ json_object_object_add(jsonClassCtl, "step", json_object_new_int64(snd_ctl_elem_info_get_step64(elemInfo)));
+ break;
+ case SND_CTL_ELEM_TYPE_ENUMERATED:
+ {
+ unsigned int item, items = snd_ctl_elem_info_get_items(elemInfo);
+ json_object *jsonEnum = json_object_new_array();
+
+ for (item = 0; item < items; item++) {
+ snd_ctl_elem_info_set_item(elemInfo, item);
+ if ((err = snd_ctl_elem_info(ctlDev, elemInfo)) >= 0) {
+ json_object_array_add(jsonEnum, json_object_new_string(snd_ctl_elem_info_get_item_name(elemInfo)));
+ }
}
- default: break; // ignore any unknown type
+ json_object_object_add(jsonClassCtl, "enums", jsonEnum);
+ break;
+ }
+ default: break; // ignore any unknown type
}
-
+
// add collected class info with associated ACLs
- json_object_object_add (ctlRequest->valuesJ,"ctl", jsonClassCtl);
-
- if (queryMode >= QUERY_FULL) json_object_object_add (ctlRequest->valuesJ,"acl" , getControlAcl (elemInfo));
+ json_object_object_add(ctlRequest->valuesJ, "ctl", jsonClassCtl);
+
+ if (queryMode >= QUERY_FULL) json_object_object_add(ctlRequest->valuesJ, "acl", getControlAcl(elemInfo));
// check for tlv [direct port from amixer.c]
if (snd_ctl_elem_info_is_tlv_readable(elemInfo)) {
unsigned int *tlv = alloca(TLV_BYTE_SIZE);
if ((err = snd_ctl_elem_tlv_read(ctlDev, elemId, tlv, 4096)) < 0) {
- AFB_NOTICE ("Control numid=%d err=%s element TLV read error\n", numid, snd_strerror(err));
- goto OnErrorExit;
+ AFB_NOTICE("Control numid=%d err=%s element TLV read error\n", numid, snd_strerror(err));
+ goto OnErrorExit;
} else {
- json_object_object_add (ctlRequest->valuesJ,"tlv", decodeTlv (tlv, TLV_BYTE_SIZE, queryMode));
- }
+ json_object_object_add(ctlRequest->valuesJ, "tlv", decodeTlv(tlv, TLV_BYTE_SIZE, queryMode));
+ }
}
}
-
- ctlRequest->used=1;
+
+ ctlRequest->used = 1;
return 0;
-
- OnErrorExit:
- ctlRequest->used=-1;
- return -1;
+
+OnErrorExit:
+ ctlRequest->used = -1;
+ return -1;
}
// assign multiple control to the same value
-STATIC void alsaSetGetCtls (ActionSetGetT action, afb_req request) {
+
+STATIC void alsaSetGetCtls(ActionSetGetT action, afb_req request) {
ctlRequestT *ctlRequest;
- const char *warmsg=NULL;
- int err=0, status=0, done;
+ const char *warmsg = NULL;
+ int err = 0, status = 0, done;
unsigned int ctlCount;
snd_ctl_t *ctlDev;
- snd_ctl_elem_list_t *ctlList;
+ snd_ctl_elem_list_t *ctlList;
queryValuesT queryValues;
json_object *queryJ, *numidsJ, *sndctls;
-
- queryJ = alsaCheckQuery (request, &queryValues);
+
+ queryJ = alsaCheckQuery(request, &queryValues);
if (!queryJ) goto OnErrorExit;
-
+
// Prase Numids + optional values
- done= json_object_object_get_ex (queryJ, "ctl" , &numidsJ);
- if (!done) queryValues.count=0;
+ done = json_object_object_get_ex(queryJ, "ctl", &numidsJ);
+ if (!done) queryValues.count = 0;
else {
- enum json_type jtype= json_object_get_type(numidsJ);
+ enum json_type jtype = json_object_get_type(numidsJ);
switch (jtype) {
case json_type_array:
queryValues.numidsJ = numidsJ;
- queryValues.count = json_object_array_length (numidsJ);
+ queryValues.count = json_object_array_length(numidsJ);
break;
case json_type_int:
@@ -664,85 +673,85 @@ STATIC void alsaSetGetCtls (ActionSetGetT action, afb_req request) {
queryValues.count = 1;
queryValues.numidsJ = numidsJ;
break;
-
- default:
- afb_req_fail_f (request, "numid-notarray","NumId=%s NumId not valid JSON array", json_object_get_string(numidsJ));
- goto OnErrorExit;
+
+ default:
+ afb_req_fail_f(request, "numid-notarray", "NumId=%s NumId not valid JSON array", json_object_get_string(numidsJ));
+ goto OnErrorExit;
}
}
-
+
if ((err = snd_ctl_open(&ctlDev, queryValues.devid, 0)) < 0) {
- afb_req_fail_f (request, "sndcrl-notfound","devid='%s' load fail error=%s\n", queryValues.devid, snd_strerror(err));
+ afb_req_fail_f(request, "sndcrl-notfound", "devid='%s' load fail error=%s\n", queryValues.devid, snd_strerror(err));
goto OnErrorExit;
}
-
- snd_ctl_elem_list_alloca(&ctlList);
- if ((err = snd_ctl_elem_list (ctlDev, ctlList)) < 0) {
- afb_req_fail_f (request, "listInit-failed","devid='%s' load fail error=%s\n", queryValues.devid, snd_strerror(err));
+
+ snd_ctl_elem_list_alloca(&ctlList);
+ if ((err = snd_ctl_elem_list(ctlDev, ctlList)) < 0) {
+ afb_req_fail_f(request, "listInit-failed", "devid='%s' load fail error=%s\n", queryValues.devid, snd_strerror(err));
goto OnErrorExit;
}
if ((err = snd_ctl_elem_list_alloc_space(ctlList, snd_ctl_elem_list_get_count(ctlList))) < 0) {
- afb_req_fail_f (request, "listAlloc-failed","devid='%s' load fail error=%s\n", queryValues.devid, snd_strerror(err));
+ afb_req_fail_f(request, "listAlloc-failed", "devid='%s' load fail error=%s\n", queryValues.devid, snd_strerror(err));
goto OnErrorExit;
}
-
- if ((err = snd_ctl_elem_list (ctlDev, ctlList)) < 0) {
- afb_req_fail_f (request, "listOpen-failed","devid='%s' load fail error=%s\n", queryValues.devid, snd_strerror(err));
+
+ if ((err = snd_ctl_elem_list(ctlDev, ctlList)) < 0) {
+ afb_req_fail_f(request, "listOpen-failed", "devid='%s' load fail error=%s\n", queryValues.devid, snd_strerror(err));
goto OnErrorExit;
}
// Parse numids string (empty == all)
- ctlCount= snd_ctl_elem_list_get_used(ctlList);
- if (queryValues.count==0) {
- ctlRequest= alloca (sizeof(ctlRequestT)*(ctlCount));
+ ctlCount = snd_ctl_elem_list_get_used(ctlList);
+ if (queryValues.count == 0) {
+ ctlRequest = alloca(sizeof (ctlRequestT)*(ctlCount));
} else {
- ctlRequest= alloca (sizeof(ctlRequestT)*(queryValues.count));
- NumidsListParse (action, &queryValues, ctlRequest);
+ ctlRequest = alloca(sizeof (ctlRequestT)*(queryValues.count));
+ NumidsListParse(action, &queryValues, ctlRequest);
}
-
+
// if more than one crl requested prepare an array for response
- if (queryValues.count!= 1 && action==ACTION_GET) sndctls=json_object_new_array();
- else sndctls=NULL;
-
+ if (queryValues.count != 1 && action == ACTION_GET) sndctls = json_object_new_array();
+ else sndctls = NULL;
+
// Loop on all ctlDev controls
- for (int ctlIndex=0; ctlIndex < ctlCount; ctlIndex++) {
- unsigned int selected=0;
+ for (int ctlIndex = 0; ctlIndex < ctlCount; ctlIndex++) {
+ unsigned int selected = 0;
int jdx;
-
+
if (queryValues.count == 0 && action == ACTION_GET) {
- selected=1; // check is this numid is selected within query
- jdx = ctlIndex; // map all existing ctl as requested
+ selected = 1; // check is this numid is selected within query
+ jdx = ctlIndex; // map all existing ctl as requested
} else {
- int numid = snd_ctl_elem_list_get_numid(ctlList, ctlIndex);
+ int numid = snd_ctl_elem_list_get_numid(ctlList, ctlIndex);
if (numid < 0) {
AFB_NOTICE("snd_ctl_elem_list_get_numid index=%d fail", ctlIndex);
continue;
}
// check if current control was requested in query numids list
- for (jdx=0; jdx < queryValues.count; jdx++) {
+ for (jdx = 0; jdx < queryValues.count; jdx++) {
if (numid == ctlRequest[jdx].numId) {
selected = 1;
break;
}
- }
+ }
}
-
+
// control is selected open ctlid and get value
if (selected) {
- snd_ctl_elem_id_t *elemId;
+ snd_ctl_elem_id_t *elemId;
snd_ctl_elem_id_alloca(&elemId);
-
- snd_ctl_elem_list_get_id (ctlList, ctlIndex, elemId);
+
+ snd_ctl_elem_list_get_id(ctlList, ctlIndex, elemId);
switch (action) {
case ACTION_GET:
- err = alsaGetSingleCtl (ctlDev, elemId, &ctlRequest[jdx], queryValues.mode);
+ err = alsaGetSingleCtl(ctlDev, elemId, &ctlRequest[jdx], queryValues.mode);
break;
-
+
case ACTION_SET:
- err = alsaSetSingleCtl (ctlDev, elemId, &ctlRequest[jdx]);
+ err = alsaSetSingleCtl(ctlDev, elemId, &ctlRequest[jdx]);
break;
-
+
default:
err = 1;
}
@@ -750,51 +759,51 @@ STATIC void alsaSetGetCtls (ActionSetGetT action, afb_req request) {
else {
// Do not embed response in an array when only one ctl was requested
if (action == ACTION_GET) {
- if (queryValues.count > 1) json_object_array_add (sndctls, ctlRequest[jdx].valuesJ);
+ if (queryValues.count > 1) json_object_array_add(sndctls, ctlRequest[jdx].valuesJ);
else sndctls = ctlRequest[jdx].valuesJ;
}
}
}
}
-
+
// if we had error let's add them into response message info
json_object *warningsJ = json_object_new_array();
- for (int jdx=0; jdx < queryValues.count; jdx++) {
+ for (int jdx = 0; jdx < queryValues.count; jdx++) {
if (ctlRequest[jdx].used <= 0) {
json_object *failctl = json_object_new_object();
- if (ctlRequest[jdx].numId == -1) json_object_object_add (failctl, "warning", json_object_new_string ("Numid Invalid"));
+ if (ctlRequest[jdx].numId == -1) json_object_object_add(failctl, "warning", json_object_new_string("Numid Invalid"));
else {
- if (ctlRequest[jdx].used == 0) json_object_object_add (failctl, "warning", json_object_new_string ("Numid Does Not Exist"));
- if (ctlRequest[jdx].used == -1) json_object_object_add (failctl, "warning", json_object_new_string ("Value Refused"));
+ if (ctlRequest[jdx].used == 0) json_object_object_add(failctl, "warning", json_object_new_string("Numid Does Not Exist"));
+ if (ctlRequest[jdx].used == -1) json_object_object_add(failctl, "warning", json_object_new_string("Value Refused"));
}
-
- json_object_object_add (failctl, "ctl", ctlRequest[jdx].jToken);
-
- json_object_array_add (warningsJ, failctl);
+
+ json_object_object_add(failctl, "ctl", ctlRequest[jdx].jToken);
+
+ json_object_array_add(warningsJ, failctl);
}
/* WARNING!!!! Check with Jose why following put free valuesJ
if (ctlRequest[jdx].jToken) json_object_put(ctlRequest[jdx].jToken);
if (ctlRequest[jdx].valuesJ) json_object_put(ctlRequest[jdx].valuesJ);
- */
+ */
}
-
- if (json_object_array_length(warningsJ) > 0) warmsg=json_object_get_string (warningsJ);
+
+ if (json_object_array_length(warningsJ) > 0) warmsg = json_object_get_string(warningsJ);
else json_object_put(warningsJ);
-
+
// send response+warning if any
- afb_req_success (request, sndctls, warmsg);
+ afb_req_success(request, sndctls, warmsg);
snd_ctl_elem_list_clear(ctlList);
-
- OnErrorExit:
- return;
+
+OnErrorExit:
+ return;
}
-PUBLIC void alsaGetCtls (afb_req request) {
- alsaSetGetCtls (ACTION_GET, request);
+PUBLIC void alsaGetCtls(afb_req request) {
+ alsaSetGetCtls(ACTION_GET, request);
}
-
-PUBLIC void alsaSetCtls (afb_req request) {
- alsaSetGetCtls (ACTION_SET, request);
+
+PUBLIC void alsaSetCtls(afb_req request) {
+ alsaSetGetCtls(ACTION_SET, request);
}