diff options
Diffstat (limited to 'ALSA-afb/Alsa-SetGet.c')
| -rw-r--r-- | ALSA-afb/Alsa-SetGet.c | 567 |
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); } |