From 4a17d7b114987d6f014e5041b122f9667057ca7f Mon Sep 17 00:00:00 2001 From: Fulup Ar Foll Date: Tue, 24 Oct 2017 23:33:43 +0200 Subject: Extracted from Global afb-audio repo --- Alsa-afb/Alsa-AddCtl.c | 399 ------------------------ Alsa-afb/Alsa-ApiHat.c | 69 ---- Alsa-afb/Alsa-ApiHat.h | 74 ----- Alsa-afb/Alsa-RegEvt.c | 395 ----------------------- Alsa-afb/Alsa-SetGet.c | 815 ------------------------------------------------ Alsa-afb/Alsa-Ucm.c | 433 ------------------------- Alsa-afb/CMakeLists.txt | 38 --- Alsa-afb/README.md | 33 -- 8 files changed, 2256 deletions(-) delete mode 100644 Alsa-afb/Alsa-AddCtl.c delete mode 100644 Alsa-afb/Alsa-ApiHat.c delete mode 100644 Alsa-afb/Alsa-ApiHat.h delete mode 100644 Alsa-afb/Alsa-RegEvt.c delete mode 100644 Alsa-afb/Alsa-SetGet.c delete mode 100644 Alsa-afb/Alsa-Ucm.c delete mode 100644 Alsa-afb/CMakeLists.txt delete mode 100644 Alsa-afb/README.md (limited to 'Alsa-afb') diff --git a/Alsa-afb/Alsa-AddCtl.c b/Alsa-afb/Alsa-AddCtl.c deleted file mode 100644 index aaa9347..0000000 --- a/Alsa-afb/Alsa-AddCtl.c +++ /dev/null @@ -1,399 +0,0 @@ -/* - * AlsaUseCase -- provide low level interface with ALSA lib (extracted from alsa-json-gateway code) - * Copyright (C) 2015,2016,2017, Fulup Ar Foll fulup@iot.bzh - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - * References: - * https://kernel.readthedocs.io/en/sphinx-samples/writing-an-alsa-driver.html#control-names - * https://01.org/linuxgraphics/gfx-docs/drm/sound/designs/control-names.html - - */ -#define _GNU_SOURCE // needed for vasprintf - -#include -#include -#include -#include - -#include "Alsa-ApiHat.h" - -// Performs like a toggle switch for attenuation, because they're bool (ref:user-ctl-element-set.c) - -#ifndef SNDRV_CTL_TLVD_DECLARE_DB_MINMAX -// taken from alsa-lib-1.1.3:include/sound/tlv.h - -#define SNDRV_CTL_TLVD_LENGTH(...) \ - ((unsigned int)sizeof((const unsigned int[]) { __VA_ARGS__ })) - -#define SNDRV_CTL_TLVD_ITEM(type, ...) \ - (type), SNDRV_CTL_TLVD_LENGTH(__VA_ARGS__), __VA_ARGS__ - -#define SNDRV_CTL_TLVT_DB_MINMAX 4 - -#define SNDRV_CTL_TLVD_DB_MINMAX_ITEM(min_dB, max_dB) \ - SNDRV_CTL_TLVD_ITEM(SNDRV_CTL_TLVT_DB_MINMAX, (min_dB), (max_dB)) - -#define SNDRV_CTL_TLVD_DECLARE_DB_MINMAX(name, min_dB, max_dB) \ - unsigned int name[] = { \ - SNDRV_CTL_TLVD_DB_MINMAX_ITEM(min_dB, max_dB) \ - } - -#define SNDRV_CTL_TLVD_DB_SCALE_MASK 0xffff -#define SNDRV_CTL_TLVD_DB_SCALE_MUTE 0x10000 - -#endif -static const unsigned int *allocate_bool_fake_tlv(void) { - static const SNDRV_CTL_TLVD_DECLARE_DB_MINMAX(range, -10000, 0); - unsigned int *tlv = malloc(sizeof (range)); - if (tlv == NULL) return NULL; - memcpy(tlv, range, sizeof (range)); - return tlv; -} - -static const unsigned int *allocate_int_dbscale_tlv(int min, int step, int mute) { - // SNDRV_CTL_TLVD_DECLARE_DB_SCALE(range, min, step, mute); - size_t tlvSize = sizeof (4 * sizeof (unsigned int)); - unsigned int *tlv = malloc(tlvSize); - tlv[0] = SNDRV_CTL_TLVT_DB_LINEAR; - tlv[1] = (int) tlvSize; - tlv[2] = min * 100; - tlv[3] = ((step * 100) & SNDRV_CTL_TLVD_DB_SCALE_MASK) | ((mute * 100) ? SNDRV_CTL_TLVD_DB_SCALE_MUTE : 0); - return tlv; -} - -static const unsigned int *allocate_int_linear_tlv(int max, int min) { - // SNDRV_CTL_TLVD_DECLARE_DB_LINEAR (range, min, max); - size_t tlvSize = sizeof (4 * sizeof (unsigned int)); - unsigned int *tlv = malloc(tlvSize); - tlv[0] = SNDRV_CTL_TLVT_DB_LINEAR; - tlv[1] = (int) tlvSize; - tlv[2] = -min * 100; - tlv[3] = max * 100; - return tlv; -} - -STATIC json_object * addOneSndCtl(afb_req request, snd_ctl_t *ctlDev, json_object *ctlJ, halQueryMode queryMode) { - int err, done, ctlNumid, ctlValue=0, shouldCreate; - json_object *tmpJ; - const char *ctlName; - ctlRequestT ctlRequest; - int ctlMax=100, ctlMin=0, ctlStep, ctlCount, ctlSubDev=0, ctlSndDev=0; - snd_ctl_elem_type_t ctlType=SND_CTL_ELEM_TYPE_NONE; - snd_ctl_elem_info_t *elemInfo; - snd_ctl_elem_id_t *elemId; - snd_ctl_elem_value_t *elemValue; - const unsigned int *elemTlv = NULL; - - // parse json ctl object - json_object_object_get_ex(ctlJ, "name", &tmpJ); - ctlName = json_object_get_string(tmpJ); - - json_object_object_get_ex(ctlJ, "ctl", &tmpJ); - ctlNumid = json_object_get_int(tmpJ); - - if (!ctlNumid && !ctlName) { - afb_req_fail_f(request, "ctl-invalid", "crl=%s name or numid missing", json_object_get_string(ctlJ)); - goto OnErrorExit; - } - - - // We are facing a software ctl - if (ctlNumid == CTL_AUTO) { - done = json_object_object_get_ex(ctlJ, "type", &tmpJ); - if (done) ctlType = json_object_get_int(tmpJ); - else ctlType = SND_CTL_ELEM_TYPE_INTEGER; - - json_object_object_get_ex(ctlJ, "val", &tmpJ); - ctlValue = json_object_get_int(tmpJ); - - // default for json_object_get_int is zero - json_object_object_get_ex(ctlJ, "min", &tmpJ); - ctlMin = json_object_get_int(tmpJ); - - done = json_object_object_get_ex(ctlJ, "max", &tmpJ); - if (done) ctlMax = json_object_get_int(tmpJ); - else { - if (ctlType == SND_CTL_ELEM_TYPE_BOOLEAN) ctlMax = 1; - else ctlMax = 100; - } - - done = json_object_object_get_ex(ctlJ, "step", &tmpJ); - if (!done) ctlStep = 1; - else ctlStep = json_object_get_int(tmpJ); - - done = json_object_object_get_ex(ctlJ, "count", &tmpJ); - if (!done) ctlCount = 1; - else ctlCount = json_object_get_int(tmpJ); - - json_object_object_get_ex(ctlJ, "snddev", &tmpJ); - ctlSndDev = json_object_get_int(tmpJ); - - json_object_object_get_ex(ctlJ, "subdev", &tmpJ); - ctlSubDev = json_object_get_int(tmpJ); - } - - // Assert that this ctls is not used - snd_ctl_elem_info_alloca(&elemInfo); - if (ctlName) snd_ctl_elem_info_set_name(elemInfo, ctlName); - if (ctlNumid > 0)snd_ctl_elem_info_set_numid(elemInfo, ctlNumid); - snd_ctl_elem_info_set_interface(elemInfo, SND_CTL_ELEM_IFACE_MIXER); - - // If control exist try to reuse it - err = snd_ctl_elem_info(ctlDev, elemInfo); - if (err) { - shouldCreate = 1; - } else { - int count, min, max, sndDev, subDev; - snd_ctl_elem_type_t type; - - // ctl exit let's get associated elemID - snd_ctl_elem_id_alloca(&elemId); - snd_ctl_elem_info_get_id(elemInfo, elemId); - - // If this is a hardware ctl only update value - if (ctlNumid != CTL_AUTO) { - json_object_object_get_ex(ctlJ, "val", &tmpJ); - ctlValue = json_object_get_int(tmpJ); - goto UpdateDefaultVal; - } - - count = snd_ctl_elem_info_get_count(elemInfo); - min = (int) snd_ctl_elem_info_get_min(elemInfo); - max = (int) snd_ctl_elem_info_get_max(elemInfo); - type = snd_ctl_elem_info_get_type(elemInfo); - sndDev = (int) snd_ctl_elem_info_get_device(elemInfo); - subDev = (int) snd_ctl_elem_info_get_subdevice(elemInfo); - - if (count == ctlCount && min == ctlMin && max == ctlMax && type == ctlType && sndDev == ctlSndDev && subDev == ctlSubDev) { - // Adjust value to best fit request - shouldCreate = 0; - } else { - err = snd_ctl_elem_remove(ctlDev, elemId); - shouldCreate = 1; - if (err < 0) { - AFB_ERROR("addOneSndCtl: ctlName=%s numid=%d fail to reset", snd_ctl_elem_info_get_name(elemInfo), snd_ctl_elem_info_get_numid(elemInfo)); - goto DoNotUpdate; - }; - - // Control was deleted need to refresh elemInfo - snd_ctl_elem_info_alloca(&elemInfo); - if (ctlName) snd_ctl_elem_info_set_name(elemInfo, ctlName); - snd_ctl_elem_info_set_interface(elemInfo, SND_CTL_ELEM_IFACE_MIXER); - snd_ctl_elem_info(ctlDev, elemInfo); - } - } - - // Add requested ID into elemInfo - snd_ctl_elem_info_set_device(elemInfo, ctlSndDev); - snd_ctl_elem_info_set_subdevice(elemInfo, ctlSubDev); - - switch (ctlType) { - case SND_CTL_ELEM_TYPE_BOOLEAN: - if (shouldCreate) { - err = snd_ctl_add_boolean_elem_set(ctlDev, elemInfo, 1, ctlCount); - if (err) { - AFB_ERROR("AddOntSndCtl Boolean: devid='%s' name='%s' count=%d", snd_ctl_name(ctlDev), ctlName, ctlCount); - afb_req_fail_f(request, "ctl-invalid-bool", "devid='%s' name='%s' count=%d", snd_ctl_name(ctlDev), ctlName, ctlCount); - goto OnErrorExit; - } - } - - // Create a dummy TLV - elemTlv = allocate_bool_fake_tlv(); - - break; - - case SND_CTL_ELEM_TYPE_INTEGER: - if (shouldCreate) { - err = snd_ctl_add_integer_elem_set(ctlDev, elemInfo, 1, ctlCount, ctlMin, ctlMax, ctlStep); - if (err) { - AFB_ERROR("AddOntSndCtl Integer: devid='%s' name='%s' count=%d min=%d max=%d step=%d", snd_ctl_name(ctlDev), ctlName, ctlCount, ctlMin, ctlMax, ctlStep); - afb_req_fail_f(request, "ctl-invalid-bool", "devid='%s' name='%s' count=%d min=%d max=%d step=%d", snd_ctl_name(ctlDev), ctlName, ctlCount, ctlMin, ctlMax, ctlStep); - goto OnErrorExit; - } - } - - // Fulup needed to be tested with some dB expert !!! - json_object *dbscaleJ; - if (json_object_object_get_ex(ctlJ, "dbscale", &dbscaleJ)) { - int min, max; - - if (json_object_get_type(dbscaleJ) != json_type_object) { - afb_req_fail_f(request, "ctl-invalid-dbscale", "devid=%s crl=%s invalid json in integer control", snd_ctl_name(ctlDev), json_object_get_string(ctlJ)); - goto OnErrorExit; - - json_object_object_get_ex(ctlJ, "min", &tmpJ); - min = json_object_get_int(tmpJ); - if (min >= 0) { - afb_req_fail_f(request, "ctl-invalid-dbscale", "devid=%s crl=%s min should be a negative number", snd_ctl_name(ctlDev), json_object_get_string(ctlJ)); - goto OnErrorExit; - } - - // default value 0=mute - json_object_object_get_ex(ctlJ, "max", &tmpJ); - max = json_object_get_int(tmpJ); - - // default value 1dB - json_object_object_get_ex(ctlJ, "step", &tmpJ); - int step = json_object_get_int(tmpJ); - if (step <= 0) step = 1; - - elemTlv = allocate_int_dbscale_tlv(min, max, step); - - } - } else { - // provide a fake linear TLV - elemTlv = allocate_int_linear_tlv(ctlMin, ctlMax); - } - break; - - case SND_CTL_ELEM_TYPE_ENUMERATED: - - if (shouldCreate) { - json_object *enumsJ; - json_object_object_get_ex(ctlJ, "enums", &enumsJ); - if (json_object_get_type(enumsJ) != json_type_array) { - afb_req_fail_f(request, "ctl-missing-enums", "devid=%s crl=%s mandatory enum=xxx missing in enumerated control", snd_ctl_name(ctlDev), json_object_get_string(ctlJ)); - goto OnErrorExit; - } - - int length = json_object_array_length(enumsJ); - const char **enumlabels = malloc(length * sizeof (char*)); - - for (int jdx = 0; jdx < length; jdx++) { - tmpJ = json_object_array_get_idx(enumsJ, jdx); - enumlabels[jdx] = json_object_get_string(tmpJ); - } - - err = snd_ctl_add_enumerated_elem_set(ctlDev, elemInfo, 1, ctlCount, length, enumlabels); - if (err) { - afb_req_fail_f(request, "ctl-invalid-bool", "devid=%s crl=%s invalid enumerated control", snd_ctl_name(ctlDev), json_object_get_string(ctlJ)); - goto OnErrorExit; - } - - // Fulup should be an empty container - elemTlv = allocate_bool_fake_tlv(); - } - break; - - // Long Term Waiting ToDoList - case SND_CTL_ELEM_TYPE_INTEGER64: - case SND_CTL_ELEM_TYPE_BYTES: - default: - afb_req_fail_f(request, "ctl-invalid-type", "crl=%s unsupported type type=%d numid=%d", json_object_get_string(ctlJ), ctlType, ctlNumid); - goto OnErrorExit; - } - -UpdateDefaultVal: - - // Set Value to default - snd_ctl_elem_value_alloca(&elemValue); - for (int idx = 0; idx < snd_ctl_elem_info_get_count(elemInfo); idx++) { - snd_ctl_elem_value_set_integer(elemValue, idx, ctlValue); - } - - // write default values in newly created control - snd_ctl_elem_id_alloca(&elemId); - snd_ctl_elem_info(ctlDev, elemInfo); - snd_ctl_elem_info_get_id(elemInfo, elemId); - snd_ctl_elem_value_set_id(elemValue, elemId); - err = snd_ctl_elem_write(ctlDev, elemValue); - if (err < 0) { - AFB_WARNING("addOneSndCtl: crl=%s numid=%d fail to write Values error=%s", json_object_get_string(ctlJ), snd_ctl_elem_info_get_numid(elemInfo), snd_strerror(err)); - goto DoNotUpdate; - } - - // write a default null TLV (if usefull should be implemented for every ctl type) - if (elemTlv) { - err = snd_ctl_elem_tlv_write(ctlDev, elemId, elemTlv); - if (err < 0) { - AFB_WARNING("addOneSndCtl: crl=%s numid=%d fail to write TLV error=%s", json_object_get_string(ctlJ), snd_ctl_elem_info_get_numid(elemInfo), snd_strerror(err)); - goto DoNotUpdate; - } - } - -DoNotUpdate: - // return newly created as a JSON object - alsaGetSingleCtl(ctlDev, elemId, &ctlRequest, queryMode); - if (ctlRequest.used < 0) { - AFB_WARNING("addOneSndCtl: crl=%s numid=%d Fail to get value", json_object_get_string(ctlJ), snd_ctl_elem_info_get_numid(elemInfo)); - } - return ctlRequest.valuesJ; - -OnErrorExit: - return NULL; -} - -PUBLIC void alsaAddCustomCtls(afb_req request) { - int err; - json_object *ctlsJ, *ctlsValues, *ctlValues; - enum json_type; - snd_ctl_t *ctlDev = NULL; - const char *devid, *mode; - - devid = afb_req_value(request, "devid"); - if (devid == NULL) { - afb_req_fail_f(request, "devid-missing", "devid MUST be defined for alsaAddCustomCtls"); - goto OnErrorExit; - } - - // open control interface for devid - err = snd_ctl_open(&ctlDev, devid, 0); - if (err < 0) { - afb_req_fail_f(request, "devid-unknown", "SndCard devid=[%s] Not Found err=%s", devid, snd_strerror(err)); - goto OnErrorExit; - } - - // get verbosity level - halQueryMode queryMode = QUERY_QUIET; - mode = afb_req_value(request, "mode"); - if (mode != NULL) { - sscanf(mode, "%i", (int*) &queryMode); - } - - // extract sound controls and parse json - ctlsJ = json_tokener_parse(afb_req_value(request, "ctl")); - if (!ctlsJ) { - afb_req_fail_f(request, "ctls-missing", "ctls MUST be defined as a JSON array for alsaAddCustomCtls"); - goto OnErrorExit; - } - - switch (json_object_get_type(ctlsJ)) { - case json_type_object: - ctlsValues = addOneSndCtl(request, ctlDev, ctlsJ, queryMode); - if (!ctlsValues) goto OnErrorExit; - break; - - case json_type_array: - ctlsValues = json_object_new_array(); - for (int idx = 0; idx < json_object_array_length(ctlsJ); idx++) { - json_object *ctlJ = json_object_array_get_idx(ctlsJ, idx); - ctlValues = addOneSndCtl(request, ctlDev, ctlJ, queryMode); - if (ctlValues) json_object_array_add(ctlsValues, ctlValues); - else goto OnErrorExit; - } - break; - - default: - afb_req_fail_f(request, "ctls-invalid", "ctls=%s not valid JSON array", json_object_get_string(ctlsJ)); - goto OnErrorExit; - } - - // get ctl as a json response - afb_req_success(request, ctlsValues, NULL); - -OnErrorExit: - if (ctlDev) snd_ctl_close(ctlDev); - return; -} diff --git a/Alsa-afb/Alsa-ApiHat.c b/Alsa-afb/Alsa-ApiHat.c deleted file mode 100644 index e5172de..0000000 --- a/Alsa-afb/Alsa-ApiHat.c +++ /dev/null @@ -1,69 +0,0 @@ -/* - * Copyright (C) 2016 "IoT.bzh" - * Author Fulup Ar Foll - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#define _GNU_SOURCE -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - - -#include "Alsa-ApiHat.h" - -STATIC int AlsaInit(void) { - int rc= prctl(PR_SET_NAME, "afb-aaaa-agent",NULL,NULL,NULL); - if (rc) AFB_ERROR("ERROR: AlsaCore fail to rename process"); - - return rc; -} - -/* - * array of the verbs exported to afb-daemon - */ -static const struct afb_verb_v2 api_verbs[] = { - /* VERB'S NAME FUNCTION TO CALL */ - { .verb = "ping", .callback = pingtest, .info="Ping Presence Check on API"}, - { .verb = "infoget", .callback = alsaGetInfo, .info="Return sound cards list"}, - { .verb = "ctlget", .callback = alsaGetCtls, .info="Get one or many control values"}, - { .verb = "ctlset", .callback = alsaSetCtls, .info="Set one control or more"}, - { .verb = "subscribe", .callback = alsaEvtSubcribe, .info="subscribe to alsa events"}, - { .verb = "cardidget", .callback = alsaGetCardId, .info="get sound card id"}, - { .verb = "halregister", .callback = alsaRegisterHal, .info="register a new HAL in alsacore"}, - { .verb = "hallist", .callback = alsaActiveHal, .info="Get list of currently active HAL"}, - { .verb = "ucmquery", .callback = alsaUseCaseQuery,.info="Use Case Manager Query"}, - { .verb = "ucmset", .callback = alsaUseCaseSet,.info="Use Case Manager set"}, - { .verb = "ucmget", .callback = alsaUseCaseGet,.info="Use Case Manager Get"}, - { .verb = "ucmreset", .callback = alsaUseCaseReset, .info="Use Case Manager Reset"}, - { .verb = "ucmclose", .callback = alsaUseCaseClose, .info="Use Case Manager Close"}, - { .verb = "addcustomctl", .callback = alsaAddCustomCtls, .info="Add Software Alsa Custom Control"}, - { .verb = NULL} /* marker for end of the array */ -}; - -/* - * description of the binding for afb-daemon - */ -const afb_binding_v2 afbBindingV2 = { - .api = "alsacore", - .verbs = api_verbs, - .preinit = AlsaInit, -}; diff --git a/Alsa-afb/Alsa-ApiHat.h b/Alsa-afb/Alsa-ApiHat.h deleted file mode 100644 index bd70740..0000000 --- a/Alsa-afb/Alsa-ApiHat.h +++ /dev/null @@ -1,74 +0,0 @@ -/* - * AlsaLibMapping -- provide low level interface with ALSA lib (extracted from alsa-json-gateway code) - * Copyright (C) 2015,2016,2017, Fulup Ar Foll fulup@iot.bzh - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - - -#ifndef ALSALIBMAPPING_H -#define ALSALIBMAPPING_H - - -#include -#include -#include "audio-common.h" - -typedef enum { - ACTION_SET, - ACTION_GET -} ActionSetGetT; - -// generic structure to pass parsed query values -typedef struct { - const char *devid; - json_object *numidsJ; - halQueryMode mode; - int count; -} queryValuesT; - -// use to store crl numid user request -typedef struct { - unsigned int numId; - json_object *jToken; - json_object *valuesJ; - int used; -} ctlRequestT; - -// import from AlsaAfbBinding -extern const struct afb_binding_interface *afbIface; -PUBLIC json_object *alsaCheckQuery (struct afb_req request, queryValuesT *queryValues); - -// AlseCoreSetGet exports -PUBLIC int alsaGetSingleCtl (snd_ctl_t *ctlDev, snd_ctl_elem_id_t *elemId, ctlRequestT *ctlRequest, halQueryMode queryMode); -PUBLIC void alsaGetInfo (struct afb_req request); -PUBLIC void alsaGetCtls(struct afb_req request); -PUBLIC void alsaSetCtls(struct afb_req request); - - -// AlsaUseCase exports -PUBLIC void alsaUseCaseQuery(struct afb_req request); -PUBLIC void alsaUseCaseSet(struct afb_req request); -PUBLIC void alsaUseCaseGet(struct afb_req request); -PUBLIC void alsaUseCaseClose(struct afb_req request); -PUBLIC void alsaUseCaseReset(struct afb_req request); -PUBLIC void alsaAddCustomCtls(struct afb_req request); - -// AlsaRegEvt -PUBLIC void alsaEvtSubcribe (struct afb_req request); -PUBLIC void alsaGetCardId (struct afb_req request); -PUBLIC void alsaRegisterHal (struct afb_req request); -PUBLIC void alsaActiveHal (struct afb_req request); - -#endif /* ALSALIBMAPPING_H */ - diff --git a/Alsa-afb/Alsa-RegEvt.c b/Alsa-afb/Alsa-RegEvt.c deleted file mode 100644 index 41db207..0000000 --- a/Alsa-afb/Alsa-RegEvt.c +++ /dev/null @@ -1,395 +0,0 @@ -/* - * AlsaLibMapping -- provide low level interface with ALSA lib (extracted from alsa-json-gateway code) - * Copyright (C) 2015,2016,2017, Fulup Ar Foll fulup@iot.bzh - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - - */ - -#define _GNU_SOURCE // needed for vasprintf - -#include "Alsa-ApiHat.h" - -// generic sndctrl event handle hook to event callback when pooling - -typedef struct { - struct pollfd pfds; - sd_event_source *src; - snd_ctl_t *ctlDev; - int mode; - struct afb_event afbevt; -} evtHandleT; - -typedef struct { - int ucount; - int cardId; - evtHandleT *evtHandle; -} sndHandleT; - -typedef struct { - char *devid; - char *apiprefix; - char *shortname; - char *longname; -} cardRegistryT; - -cardRegistryT *cardRegistry[MAX_SND_CARD + 1]; - -PUBLIC json_object *alsaCheckQuery(afb_req request, queryValuesT *queryValues) { - - json_object *tmpJ; - int done; - - // get query from request - json_object *queryInJ = afb_req_json(request); - - done = json_object_object_get_ex(queryInJ, "devid", &tmpJ); - if (!done) { - afb_req_fail_f(request, "devid-missing", "Invalid query='%s'", json_object_get_string(queryInJ)); - goto OnErrorExit; - } - queryValues->devid = json_object_get_string(tmpJ); - - done = json_object_object_get_ex(queryInJ, "mode", &tmpJ); - if (!done) queryValues->mode = QUERY_QUIET; // default quiet - else queryValues->mode = json_object_get_int(tmpJ); - - return queryInJ; - -OnErrorExit: - return NULL; -} - -// This routine is called when ALSA event are fired - -STATIC int sndCtlEventCB(sd_event_source* src, int fd, uint32_t revents, void* userData) { - int err, ctlNumid; - evtHandleT *evtHandle = (evtHandleT*) userData; - snd_ctl_event_t *eventId; - json_object *ctlEventJ; - unsigned int mask; - int iface; - int device; - int subdev; - const char*ctlName; - ctlRequestT ctlRequest; - snd_ctl_elem_id_t *elemId; - - if ((revents & EPOLLHUP) != 0) { - AFB_NOTICE("SndCtl hanghup [car disconnected]"); - goto ExitOnSucess; - } - - if ((revents & EPOLLIN) != 0) { - - // initialise event structure on stack - snd_ctl_event_alloca(&eventId); - snd_ctl_elem_id_alloca(&elemId); - - err = snd_ctl_read(evtHandle->ctlDev, eventId); - if (err < 0) goto OnErrorExit; - - // we only process sndctrl element - if (snd_ctl_event_get_type(eventId) != SND_CTL_EVENT_ELEM) goto ExitOnSucess; - - // we only process value changed events - mask = snd_ctl_event_elem_get_mask(eventId); - if (!(mask & SND_CTL_EVENT_MASK_VALUE)) goto ExitOnSucess; - - snd_ctl_event_elem_get_id(eventId, elemId); - - err = alsaGetSingleCtl(evtHandle->ctlDev, elemId, &ctlRequest, evtHandle->mode); - if (err) goto OnErrorExit; - - // If CTL as a value use it as container for response - if (ctlRequest.valuesJ) ctlEventJ = ctlRequest.valuesJ; - else { - ctlEventJ = json_object_new_object(); - ctlNumid = snd_ctl_event_elem_get_numid(eventId); - json_object_object_add(ctlEventJ, "id", json_object_new_int(ctlNumid)); - } - - if (evtHandle->mode >= QUERY_COMPACT) { - ctlName = snd_ctl_event_elem_get_name(eventId); - json_object_object_add(ctlEventJ, "name", json_object_new_string(ctlName)); - } - - if (evtHandle->mode >= QUERY_VERBOSE) { - iface = snd_ctl_event_elem_get_interface(eventId); - device = snd_ctl_event_elem_get_device(eventId); - subdev = snd_ctl_event_elem_get_subdevice(eventId); - json_object_object_add(ctlEventJ, "ifc", json_object_new_int(iface)); - json_object_object_add(ctlEventJ, "dev", json_object_new_int(device)); - json_object_object_add(ctlEventJ, "sub", json_object_new_int(subdev)); - } - - - AFB_DEBUG("sndCtlEventCB=%s", json_object_get_string(ctlEventJ)); - afb_event_push(evtHandle->afbevt, ctlEventJ); - } - -ExitOnSucess: - return 0; - -OnErrorExit: - AFB_WARNING("sndCtlEventCB: ignored unsupported event type"); - return (0); -} - -// Subscribe to every Alsa CtlEvent send by a given board - -PUBLIC void alsaEvtSubcribe(afb_req request) { - static sndHandleT sndHandles[MAX_SND_CARD]; - evtHandleT *evtHandle = NULL; - snd_ctl_t *ctlDev = NULL; - int err, idx, cardId, idxFree = -1; - snd_ctl_card_info_t *cardinfo; - queryValuesT queryValues; - - json_object *queryJ = alsaCheckQuery(request, &queryValues); - if (!queryJ) goto OnErrorExit; - - // open control interface for devid - err = snd_ctl_open(&ctlDev, queryValues.devid, SND_CTL_READONLY); - if (err < 0) { - afb_req_fail_f(request, "devid-unknown", "SndCard devid=%s Not Found err=%s", queryValues.devid, snd_strerror(err)); - goto OnErrorExit; - } - - snd_ctl_card_info_alloca(&cardinfo); - if ((err = snd_ctl_card_info(ctlDev, cardinfo)) < 0) { - afb_req_fail_f(request, "devid-invalid", "SndCard devid=%s Not Found err=%s", queryValues.devid, snd_strerror(err)); - goto OnErrorExit; - } - - cardId = snd_ctl_card_info_get_card(cardinfo); - - // search for an existing subscription and mark 1st free slot - for (idx = 0; idx < MAX_SND_CARD; idx++) { - if (sndHandles[idx].ucount > 0 && cardId == sndHandles[idx].cardId) { - evtHandle = sndHandles[idx].evtHandle; - break; - } else if (idxFree == -1) idxFree = idx; - }; - - // if not subscription exist for the event let's create one - if (idx == MAX_SND_CARD) { - - // reach MAX_SND_CARD event registration - if (idxFree == -1) { - afb_req_fail_f(request, "register-toomany", "Cannot register new event Maxcard==%d", idx); - goto OnErrorExit; - } - - evtHandle = malloc(sizeof (evtHandleT)); - evtHandle->ctlDev = ctlDev; - evtHandle->mode = queryValues.mode; - sndHandles[idxFree].ucount = 0; - sndHandles[idxFree].cardId = cardId; - sndHandles[idxFree].evtHandle = evtHandle; - - // subscribe for sndctl events attached to devid - err = snd_ctl_subscribe_events(evtHandle->ctlDev, 1); - if (err < 0) { - afb_req_fail_f(request, "subscribe-fail", "Cannot subscribe events from devid=%s err=%d", queryValues.devid, err); - goto OnErrorExit; - } - - // get pollfd attach to this sound board - snd_ctl_poll_descriptors(evtHandle->ctlDev, &evtHandle->pfds, 1); - - // register sound event to binder main loop - err = sd_event_add_io(afb_daemon_get_event_loop(), &evtHandle->src, evtHandle->pfds.fd, EPOLLIN, sndCtlEventCB, evtHandle); - if (err < 0) { - afb_req_fail_f(request, "register-mainloop", "Cannot hook events to mainloop devid=%s err=%d", queryValues.devid, err); - goto OnErrorExit; - } - - // create binder event attached to devid name - evtHandle->afbevt = afb_daemon_make_event(queryValues.devid); - if (!afb_event_is_valid(evtHandle->afbevt)) { - afb_req_fail_f(request, "register-event", "Cannot register new binder event name=%s", queryValues.devid); - goto OnErrorExit; - } - - // everything looks OK let's move forward - idx = idxFree; - } - - // subscribe to binder event - err = afb_req_subscribe(request, evtHandle->afbevt); - if (err != 0) { - afb_req_fail_f(request, "register-eventname", "Cannot subscribe binder event name=%s [invalid channel]", queryValues.devid); - goto OnErrorExit; - } - - // increase usage count and return success - sndHandles[idx].ucount++; - afb_req_success(request, NULL, NULL); - return; - -OnErrorExit: - if (ctlDev) snd_ctl_close(ctlDev); - return; -} - -// Subscribe to every Alsa CtlEvent send by a given board - -STATIC json_object *alsaProbeCardId(afb_req request) { - char devid [10]; - const char *ctlName, *shortname, *longname; - int card, err, index, idx; - json_object *responseJ; - snd_ctl_t *ctlDev; - snd_ctl_card_info_t *cardinfo; - - const char *sndname = afb_req_value(request, "sndname"); - if (sndname == NULL) { - afb_req_fail_f(request, "argument-missing", "sndname=SndCardName missing"); - goto OnErrorExit; - } - - // loop on potential card number - snd_ctl_card_info_alloca(&cardinfo); - for (card = 0; card < MAX_SND_CARD; card++) { - - // build card devid and probe it - snprintf(devid, sizeof (devid), "hw:%i", card); - - // open control interface for devid - err = snd_ctl_open(&ctlDev, devid, SND_CTL_READONLY); - if (err < 0) continue; - - // extract sound card information - snd_ctl_card_info(ctlDev, cardinfo); - index = snd_ctl_card_info_get_card(cardinfo); - ctlName = snd_ctl_card_info_get_id(cardinfo); - shortname = snd_ctl_card_info_get_name(cardinfo); - longname = snd_ctl_card_info_get_longname(cardinfo); - - // check if short|long name match - if (!strcmp(sndname, ctlName)) break; - if (!strcmp(sndname, shortname)) break; - if (!strcmp(sndname, longname)) break; - } - - if (card == MAX_SND_CARD) { - afb_req_fail_f(request, "ctlDev-notfound", "Fail to find card with name=%s", sndname); - goto OnErrorExit; - } - - // proxy ctlevent as a binder event - responseJ = json_object_new_object(); - json_object_object_add(responseJ, "index", json_object_new_int(index)); - json_object_object_add(responseJ, "devid", json_object_new_string(devid)); - json_object_object_add(responseJ, "shortname", json_object_new_string(shortname)); - json_object_object_add(responseJ, "longname", json_object_new_string(longname)); - - // search for a HAL binder card mapping name to api prefix - for (idx = 0; (idx < MAX_SND_CARD && cardRegistry[idx]); idx++) { - if (!strcmp(cardRegistry[idx]->shortname, shortname)) { - json_object_object_add(responseJ, "halapi", json_object_new_string(cardRegistry[idx]->apiprefix)); - break; - } - } - - return responseJ; - -OnErrorExit: - return NULL; -} - -// Make alsaProbeCardId compatible with AFB request - -PUBLIC void alsaGetCardId(afb_req request) { - - json_object *responseJ = alsaProbeCardId(request); - if (responseJ) afb_req_success(request, responseJ, NULL); -} - -// Return list of active resgistrated HAL with corresponding sndcard - -PUBLIC void alsaActiveHal(afb_req request) { - json_object *responseJ = json_object_new_array(); - - for (int idx = 0; idx < MAX_SND_CARD; idx++) { - if (!cardRegistry[idx]) break; - - json_object *haldevJ = json_object_new_object(); - json_object_object_add(haldevJ, "api", json_object_new_string(cardRegistry[idx]->apiprefix)); - if (cardRegistry[idx]->devid) json_object_object_add(haldevJ, "devid", json_object_new_string(cardRegistry[idx]->devid)); - if (cardRegistry[idx]->shortname)json_object_object_add(haldevJ, "shortname", json_object_new_string(cardRegistry[idx]->shortname)); - if (cardRegistry[idx]->longname) json_object_object_add(haldevJ, "longname", json_object_new_string(cardRegistry[idx]->longname)); - json_object_array_add(responseJ, haldevJ); - } - - afb_req_success(request, responseJ, NULL); -} - - -// Register loaded HAL with board Name and API prefix - -PUBLIC void alsaRegisterHal(afb_req request) { - static int index = 0; - json_object *responseJ; - const char *shortname, *apiPrefix; - - apiPrefix = afb_req_value(request, "prefix"); - if (apiPrefix == NULL) { - afb_req_fail_f(request, "argument-missing", "prefix=BindingApiPrefix missing"); - goto OnErrorExit; - } - - shortname = afb_req_value(request, "sndname"); - if (shortname == NULL) { - afb_req_fail_f(request, "argument-missing", "sndname=SndCardName missing"); - goto OnErrorExit; - } - - if (index == MAX_SND_CARD) { - afb_req_fail_f(request, "alsahal-toomany", "Fail to register sndname=[%s]", shortname); - goto OnErrorExit; - } - - // alsaGetCardId should be check to register only valid card - responseJ = alsaProbeCardId(request); - if (responseJ) { - json_object *tmpJ; - int done; - - cardRegistry[index] = malloc(sizeof (cardRegistry)); - cardRegistry[index]->apiprefix = strdup(apiPrefix); - cardRegistry[index]->shortname = strdup(shortname); - - done = json_object_object_get_ex(responseJ, "devid", &tmpJ); - if (done) cardRegistry[index]->devid = strdup(json_object_get_string(tmpJ)); - else cardRegistry[index]->devid = NULL; - - done = json_object_object_get_ex(responseJ, "longname", &tmpJ); - if (done) cardRegistry[index]->longname = strdup(json_object_get_string(tmpJ)); - else cardRegistry[index]->longname = NULL; - - // make sure register close with a null value - index++; - cardRegistry[index] = NULL; - - afb_req_success(request, responseJ, NULL); - } - - // If OK return sound card Alsa ID+Info - return; - -OnErrorExit: - return; -} - diff --git a/Alsa-afb/Alsa-SetGet.c b/Alsa-afb/Alsa-SetGet.c deleted file mode 100644 index f70c5d6..0000000 --- a/Alsa-afb/Alsa-SetGet.c +++ /dev/null @@ -1,815 +0,0 @@ -/* - * AlsaLibMapping -- provide low level interface with ALSA lib (extracted from alsa-json-gateway code) - * Copyright (C) 2015,2016,2017, Fulup Ar Foll fulup@iot.bzh - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - - References: - https://github.com/fulup-bzh/AlsaJsonGateway (original code) - http://alsa-lib.sourcearchive.com/documentation/1.0.20/modules.html - http://alsa-lib.sourcearchive.com/documentation/1.0.8/group__Control_gd48d44da8e3bfe150e928267008b8ff5.html - http://alsa.opensrc.org/HowTo_access_a_mixer_control - https://github.com/gch1p/alsa-volume-monitor/blob/master/main.c - 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) { - int length; - - for (int idx = 0; idx < queryValues->count; idx++) { - json_object *jId, *valuesJ; - 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); - 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); - - // 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; - } else - break; - - 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); - - // 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; - - // 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; - } - - // no numid value - 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)) { - AFB_NOTICE("Invalid Json=%s missing 'id'", json_object_get_string(ctlRequest[idx].jToken)); - ctlRequest[idx].used = -1; - } else { - ctlRequest[idx].numId = json_object_get_int(jId); - if (action == ACTION_SET) { - if (!json_object_object_get_ex(ctlRequest[idx].jToken, "val", &valuesJ)) { - AFB_NOTICE("Invalid Json=%s missing 'val'", json_object_get_string(ctlRequest[idx].jToken)); - ctlRequest[idx].used = -1; - } else - ctlRequest[idx].valuesJ = valuesJ; - } - } - break; - - default: - ctlRequest[idx].used = -1; - } - } -} - -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); - } - - // json function takes care of string copy - return (json_object_new_string(label)); -} - - -// Direct port from amixer TLV decode routine. This code is too complex for me. -// I hopefully did not break it when porting it. - -STATIC json_object *decodeTlv(unsigned int *tlv, unsigned int tlv_size, int mode) { - char label[20]; - unsigned int type = tlv[0]; - unsigned int size; - unsigned int idx = 0; - const char *chmap_type = NULL; - json_object * decodeTlvJson = json_object_new_object(); - - if (tlv_size < (unsigned int) (2 * sizeof (unsigned int))) { - printf("TLV size error!\n"); - return NULL; - } - type = tlv[idx++]; - size = tlv[idx++]; - tlv_size -= (unsigned int) (2 * sizeof (unsigned int)); - if (size > tlv_size) { - fprintf(stderr, "TLV size error (%i, %i, %i)!\n", type, size, tlv_size); - return NULL; - } - switch (type) { - - case SND_CTL_TLVT_CONTAINER: - { - json_object * containerJson = json_object_new_array(); - - size += (unsigned int) (sizeof (unsigned int) - 1); - size /= (unsigned int) (sizeof (unsigned int)); - while (idx < size) { - json_object *embedJson; - - if (tlv[idx + 1] > (size - idx) * sizeof (unsigned int)) { - fprintf(stderr, "TLV size error in compound!\n"); - return NULL; - } - embedJson = decodeTlv(tlv + idx, tlv[idx + 1] + 8, mode); - json_object_array_add(containerJson, embedJson); - idx += (unsigned int) (2 + (tlv[idx + 1] + sizeof (unsigned int) - 1) / sizeof (unsigned int)); - } - json_object_object_add(decodeTlvJson, "container", containerJson); - break; - } - - case SND_CTL_TLVT_DB_SCALE: - { - json_object * dbscaleJson = json_object_new_object(); - - if (size != 2 * sizeof (unsigned int)) { - json_object * arrayJson = json_object_new_array(); - while (size > 0) { - if (mode >= QUERY_VERBOSE) { - 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++])); - } - size -= (unsigned int) sizeof (unsigned int); - } - json_object_object_add(dbscaleJson, "array", arrayJson); - } else { - if (mode >= QUERY_VERBOSE) { - json_object_object_add(dbscaleJson, "min", DB2StringJsonOject((int) tlv[2])); - 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, "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(decodeTlvJson, "dbscale", dbscaleJson); - break; - } - -#ifdef SND_CTL_TLVT_DB_LINEAR - case SND_CTL_TLVT_DB_LINEAR: - { - json_object * dbLinearJson = json_object_new_object(); - - if (size != 2 * sizeof (unsigned int)) { - json_object * arrayJson = json_object_new_array(); - while (size > 0) { - if (mode >= QUERY_VERBOSE) { - 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++])); - } - size -= (unsigned int) sizeof (unsigned int); - } - json_object_object_add(dbLinearJson, "offset", arrayJson); - } else { - if (mode >= QUERY_VERBOSE) { - json_object_object_add(dbLinearJson, "min", DB2StringJsonOject((int) tlv[2])); - 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(decodeTlvJson, "dblinear", dbLinearJson); - break; - } -#endif - -#ifdef SND_CTL_TLVT_DB_RANGE - case SND_CTL_TLVT_DB_RANGE: - { - json_object *dbRangeJson = json_object_new_object(); - - if ((size % (6 * sizeof (unsigned int))) != 0) { - json_object *arrayJson = json_object_new_array(); - while (size > 0) { - if (mode >= QUERY_VERBOSE) { - 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++])); - } - size -= (unsigned int) sizeof (unsigned int); - } - json_object_object_add(dbRangeJson, "dbrange", arrayJson); - break; - } - while (size > 0) { - json_object * embedJson = json_object_new_object(); - json_object_object_add(embedJson, "rangemin", json_object_new_int(tlv[idx++])); - json_object_object_add(embedJson, "rangemax", json_object_new_int(tlv[idx++])); - embedJson = decodeTlv(tlv + idx, 4 * sizeof (unsigned int), mode); - json_object_object_add(embedJson, "tlv", embedJson); - idx += 4; - size -= (unsigned int) (6 * sizeof (unsigned int)); - json_object_array_add(dbRangeJson, embedJson); - } - json_object_object_add(decodeTlvJson, "dbrange", dbRangeJson); - break; - } -#endif -#ifdef SND_CTL_TLVT_DB_MINMAX - case SND_CTL_TLVT_DB_MINMAX: - case SND_CTL_TLVT_DB_MINMAX_MUTE: - { - json_object * dbMinMaxJson = json_object_new_object(); - - if (size != 2 * sizeof (unsigned int)) { - json_object * arrayJson = json_object_new_array(); - while (size > 0) { - if (mode >= QUERY_VERBOSE) { - 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++])); - } - size -= (unsigned int) sizeof (unsigned int); - } - json_object_object_add(dbMinMaxJson, "array", arrayJson); - - } else { - if (mode >= QUERY_VERBOSE) { - json_object_object_add(dbMinMaxJson, "min", DB2StringJsonOject((int) tlv[2])); - 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])); - } - } - - if (type == SND_CTL_TLVT_DB_MINMAX_MUTE) { - json_object_object_add(decodeTlvJson, "dbminmaxmute", dbMinMaxJson); - } else { - json_object_object_add(decodeTlvJson, "dbminmax", dbMinMaxJson); - } - break; - } -#endif -#ifdef SND_CTL_TLVT_CHMAP_FIXED - case SND_CTL_TLVT_CHMAP_FIXED: - chmap_type = "fixed"; - /* Fall through */ - case SND_CTL_TLVT_CHMAP_VAR: - if (!chmap_type) - chmap_type = "variable"; - /* Fall through */ - case SND_CTL_TLVT_CHMAP_PAIRED: - if (!chmap_type) - chmap_type = "paired"; - - json_object * chmapJson = json_object_new_object(); - json_object * arrayJson = json_object_new_array(); - - while (size > 0) { - snprintf(label, sizeof (label), "%s", snd_pcm_chmap_name(tlv[idx++])); - size -= (unsigned int) sizeof (unsigned int); - json_object_array_add(arrayJson, json_object_new_string(label)); - } - json_object_object_add(chmapJson, chmap_type, arrayJson); - json_object_object_add(decodeTlvJson, "chmap", chmapJson); - break; -#endif - default: - { - printf("unk-%i-", type); - json_object * arrayJson = json_object_new_array(); - - while (size > 0) { - snprintf(label, sizeof (label), "0x%08x,", tlv[idx++]); - size -= (unsigned int) sizeof (unsigned int); - json_object_array_add(arrayJson, json_object_new_string(label)); - } - break; - json_object_object_add(decodeTlvJson, "unknown", arrayJson); - } - } - - return (decodeTlvJson); -} - - -// retreive info for one given card - -STATIC json_object* alsaCardProbe(const char *rqtSndId) { - const char *info, *name; - const char *devid, *driver; - json_object *ctlDev; - 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); - 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)); - 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)); - - 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); - } - - // free card handle and return info - snd_ctl_close(handle); - return (ctlDev); -} - -// Loop on every potential Sound card and register active one - -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); - if (ctlDev != NULL) afb_req_success(request, ctlDev, NULL); - else afb_req_fail_f(request, "sndscard-notfound", "SndCard '%s' Not Found", rqtSndId); - - } else { - // return an array of ctlDev - ctlDevs = json_object_new_array(); - - // loop on potential card number - for (card = 0; card < MAX_SND_CARD; card++) { - - // build card devid and probe it - 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); - } - } - 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) { - - 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))); - - // 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(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) { - snd_ctl_elem_value_t *elemData; - 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; - - // 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 !!! - 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)); - 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)); - goto OnErrorExit; - } - - count = snd_ctl_elem_info_get_count(elemInfo); - if (count == 0) goto OnErrorExit; - - 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; - break; - case json_type_int: - length = 1; - valueIsArray = 0; - break; - default: - length = 0; - break; - } - - - 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); - 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++) { - json_object *element; - int value; - - // when not enough value duplicate last provided one - 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); - } - - 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)); - goto OnErrorExit; - } - - ctlRequest->used = 1; - return 0; - -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; - snd_ctl_elem_value_t *elemData; - 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); - if (snd_ctl_elem_info(ctlDev, elemInfo) < 0) goto OnErrorExit; - 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); - - 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))); - - 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))); - 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))); - break; - 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))); - 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))); - break; - 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); - break; - } - default: - json_object_array_add(jsonValuesCtl, json_object_new_string("?unknown?")); - break; - } - } - json_object_object_add(ctlRequest->valuesJ, "val", jsonValuesCtl); - - 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)); - - 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; - } - 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)); - - // 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; - } else { - json_object_object_add(ctlRequest->valuesJ, "tlv", decodeTlv(tlv, TLV_BYTE_SIZE, queryMode)); - } - } - } - - ctlRequest->used = 1; - return 0; - -OnErrorExit: - ctlRequest->used = -1; - return -1; -} - -// assign multiple control to the same value - -STATIC void alsaSetGetCtls(ActionSetGetT action, afb_req request) { - ctlRequestT *ctlRequest; - const char *warmsg = NULL; - int err = 0, status = 0, done; - unsigned int ctlCount; - snd_ctl_t *ctlDev; - snd_ctl_elem_list_t *ctlList; - queryValuesT queryValues; - json_object *queryJ, *numidsJ, *sndctls; - - 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; - else { - 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); - break; - - case json_type_int: - case json_type_object: - 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; - } - } - - 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)); - 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)); - 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)); - 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)); - goto OnErrorExit; - } - - // Parse numids string (empty == all) - 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); - } - - // 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; - - // Loop on all ctlDev controls - 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 - } else { - 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++) { - 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_alloca(&elemId); - - snd_ctl_elem_list_get_id(ctlList, ctlIndex, elemId); - switch (action) { - case ACTION_GET: - err = alsaGetSingleCtl(ctlDev, elemId, &ctlRequest[jdx], queryValues.mode); - break; - - case ACTION_SET: - err = alsaSetSingleCtl(ctlDev, elemId, &ctlRequest[jdx]); - break; - - default: - err = 1; - } - if (err) status++; - else { - // Do not embed response in an array when only one ctl was requested - if (action == ACTION_GET) { - if (queryValues.count == 1) sndctls = ctlRequest[jdx].valuesJ; - else json_object_array_add(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++) { - 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")); - 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")); - } - - 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); - else json_object_put(warningsJ); - - // send response+warning if any - afb_req_success(request, sndctls, warmsg); - snd_ctl_elem_list_clear(ctlList); - -OnErrorExit: - return; -} - -PUBLIC void alsaGetCtls(afb_req request) { - alsaSetGetCtls(ACTION_GET, request); -} - -PUBLIC void alsaSetCtls(afb_req request) { - alsaSetGetCtls(ACTION_SET, request); -} - - diff --git a/Alsa-afb/Alsa-Ucm.c b/Alsa-afb/Alsa-Ucm.c deleted file mode 100644 index 0bfffc9..0000000 --- a/Alsa-afb/Alsa-Ucm.c +++ /dev/null @@ -1,433 +0,0 @@ -/* - * AlsaUseCase -- provide low level interface with ALSA lib (extracted from alsa-json-gateway code) - * Copyright (C) 2015,2016,2017, Fulup Ar Foll fulup@iot.bzh - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - - References: - http://www.alsa-project.org/alsa-doc/alsa-lib/group__ucm.html - https://www.alsa-project.org/main/index.php/DAPM - http://alsa-lib.sourcearchive.com/documentation/1.0.24.1-2/group__Use_ga4332c6bb50481bbdaf21be11551fb930.html - https://android.googlesource.com/platform/hardware/qcom/audio/+/jb-mr1-dev/libalsa-intf/alsa_ucm.h - - Sample alsaucm commands using /usr/share/alsa/ucm/PandaBoard - - alsaucm -c PandaBoard list _verbs - - alsaucm -c PandaBoard list _devices/HiFi - - alsaucm -c PandaBoard list _modifiers/HiFi #need to uncomment modifiers section - - alsaucm -c PandaBoard list TQ/HiFi - - alsaucm -c PandaBoard get TQ/HiFi/Voice - - alsaucm -c PandaBoard get PlaybackPCM//HiFi - - alsaucm -c PandaBoard set _verb HiFi - - alsaucm -c PandaBoard set _verb HiFi _enadev Headset - - alsaucm -c 'HDA Intel PCH' set _verb HiFi set _enadev Headphone set _enamod RecordMedia - - alsaucm -c 'HDA Intel PCH' set _verb HiFi get OutputDspName// - - */ -#define _GNU_SOURCE // needed for vasprintf - -#include -#include -#include - -#include "Alsa-ApiHat.h" - -typedef struct { - snd_use_case_mgr_t *ucm; - int cardId; - char *cardName; -} ucmHandleT; - -static ucmHandleT ucmHandles[MAX_SND_CARD]; - -// Cache opened UCM handles - -STATIC int alsaUseCaseOpen(struct afb_req request, queryValuesT *queryValues, int allowNewMgr) { - snd_ctl_t *ctlDev; - snd_ctl_card_info_t *cardinfo; - snd_use_case_mgr_t *ucmHandle; - const char *cardName; - int cardId, idx, idxFree = -1, err; - - // open control interface for devid - err = snd_ctl_open(&ctlDev, queryValues->devid, SND_CTL_READONLY); - if (err < 0) { - ctlDev = NULL; - afb_req_fail_f(request, "devid-unknown", "SndCard devid=[%s] Not Found err=%d", queryValues->devid, err); - goto OnErrorExit; - } - - snd_ctl_card_info_alloca(&cardinfo); - if ((err = snd_ctl_card_info(ctlDev, cardinfo)) < 0) { - afb_req_fail_f(request, "devid-invalid", "SndCard devid=[%s] Not Found err=%s", queryValues->devid, snd_strerror(err)); - goto OnErrorExit; - } - - // search for an existing subscription and mark 1st free slot - cardId = snd_ctl_card_info_get_card(cardinfo); - for (idx = 0; idx < MAX_SND_CARD; idx++) { - if (ucmHandles[idx].ucm != NULL) { - if (ucmHandles[idx].cardId == cardId) goto OnSuccessExit; - } else if (idxFree == -1) idxFree = idx; - }; - - if (!allowNewMgr) { - afb_req_fail_f(request, "ucm-nomgr", "SndCard devid=[%s] no exiting UCM manager session", queryValues->devid); - goto OnErrorExit; - } - - if (idxFree < 0 && idx == MAX_SND_CARD) { - afb_req_fail_f(request, "ucm-toomany", "SndCard devid=[%s] too many open UCM Max=%d", queryValues->devid, MAX_SND_CARD); - goto OnErrorExit; - } - - idx = idxFree; - cardName = snd_ctl_card_info_get_name(cardinfo); - err = snd_use_case_mgr_open(&ucmHandle, cardName); - if (err) { - afb_req_fail_f(request, "ucm-open", "SndCard devid=[%s] name=[%s] No UCM Profile err=%s", queryValues->devid, cardName, snd_strerror(err)); - goto OnErrorExit; - } - ucmHandles[idx].ucm = ucmHandle; - ucmHandles[idx].cardId = cardId; - ucmHandles[idx].cardName = strdup(cardName); - -OnSuccessExit: - if (ctlDev) snd_ctl_close(ctlDev); - return idx; - -OnErrorExit: - if (ctlDev) snd_ctl_close(ctlDev); - return -1; -} - -PUBLIC void alsaUseCaseQuery(struct afb_req request) { - int verbCount, ucmIdx; - const char **verbList; - snd_use_case_mgr_t *ucmHandle; - queryValuesT queryValues; - json_object *ucmJs; - const char *cardName; - - json_object *queryJ = alsaCheckQuery(request, &queryValues); - if (!queryJ) goto OnErrorExit; - - ucmIdx = alsaUseCaseOpen(request, &queryValues, TRUE); - if (ucmIdx < 0) goto OnErrorExit; - ucmHandle = ucmHandles [ucmIdx].ucm; - cardName = ucmHandles [ucmIdx].cardName; - - verbCount = snd_use_case_get_list(ucmHandle, "_verbs", &verbList); - if (verbCount < 0) { - afb_req_fail_f(request, "ucm-list", "SndCard devid=[%s] name=[%s] No UCM Verbs", queryValues.devid, cardName); - goto OnErrorExit; - } - - ucmJs = json_object_new_array(); - for (int idx = 0; idx < verbCount; idx += 2) { - int devCount, modCount, tqCount; - const char **devList, **modList, **tqList; - json_object *ucmJ = json_object_new_object(); - char identifier[32]; - - json_object_object_add(ucmJ, "verb", json_object_new_string(verbList[idx])); - if (verbList[idx + 1]) json_object_object_add(ucmJ, "info", json_object_new_string(verbList[idx + 1])); - - AFB_DEBUG("Verb[%d] Action=%s Info=%s", idx, verbList[idx], verbList[idx + 1]); - - snprintf(identifier, sizeof (identifier), "_devices/%s", verbList[idx]); - devCount = snd_use_case_get_list(ucmHandle, identifier, &devList); - if (devCount > 0) { - json_object *devsJ = json_object_new_array(); - - for (int jdx = 0; jdx < devCount; jdx += 2) { - json_object *devJ = json_object_new_object(); - AFB_DEBUG("device[%d] Action=%s Info=%s", jdx, devList[jdx], devList[jdx + 1]); - json_object_object_add(devJ, "dev", json_object_new_string(devList[jdx])); - if (devList[jdx + 1]) json_object_object_add(devJ, "info", json_object_new_string(devList[jdx + 1])); - json_object_array_add(devsJ, devJ); - } - json_object_object_add(ucmJ, "devices", devsJ); - snd_use_case_free_list(devList, devCount); - } - - snprintf(identifier, sizeof (identifier), "_modifiers/%s", verbList[idx]); - modCount = snd_use_case_get_list(ucmHandle, identifier, &modList); - if (modCount > 0) { - json_object *modsJ = json_object_new_array(); - - for (int jdx = 0; jdx < modCount; jdx += 2) { - json_object *modJ = json_object_new_object(); - AFB_DEBUG("modifier[%d] Action=%s Info=%s", jdx, modList[jdx], modList[jdx + 1]); - json_object_object_add(modJ, "mod", json_object_new_string(modList[jdx])); - if (modList[jdx + 1]) json_object_object_add(modJ, "info", json_object_new_string(modList[jdx + 1])); - json_object_array_add(modsJ, modJ); - } - json_object_object_add(ucmJ, "modifiers", modsJ); - snd_use_case_free_list(modList, modCount); - } - - snprintf(identifier, sizeof (identifier), "TQ/%s", verbList[idx]); - tqCount = snd_use_case_get_list(ucmHandle, identifier, &tqList); - if (tqCount > 0) { - json_object *tqsJ = json_object_new_array(); - - for (int jdx = 0; jdx < tqCount; jdx += 2) { - json_object *tqJ = json_object_new_object(); - AFB_DEBUG("toneqa[%d] Action=%s Info=%s", jdx, tqList[jdx], tqList[jdx + 1]); - json_object_object_add(tqJ, "tq", json_object_new_string(tqList[jdx])); - if (tqList[jdx + 1]) json_object_object_add(tqJ, "info", json_object_new_string(tqList[jdx + 1])); - json_object_array_add(tqsJ, tqJ); - } - json_object_object_add(ucmJ, "tqs", tqsJ); - snd_use_case_free_list(tqList, tqCount); - } - - json_object_array_add(ucmJs, ucmJ); - } - - afb_req_success(request, ucmJs, NULL); - snd_use_case_free_list(verbList, verbCount); - -OnErrorExit: - return; -} - -STATIC json_object *ucmGetValue(ucmHandleT *ucmHandle, const char *verb, const char *mod, const char *label) { - char identifier[80]; - char *value; - int err; - json_object *jValue; - - // handle optional parameters - if (!mod) mod = ""; - if (!verb) verb = ""; - - if (!label) { - AFB_NOTICE("ucmGetValue cardname=[%s] value label missing", ucmHandle->cardName); - goto OnErrorExit; - } - - snprintf(identifier, sizeof (identifier), "%s/%s/%s", label, mod, verb); - err = snd_use_case_get(ucmHandle->ucm, identifier, (const char**) &value); // Note: value casting is a known "FEATURE" of AlsaUCM API - if (err) { - AFB_DEBUG("ucmGetValue cardname=[%s] identifier=[%s] error=%s", ucmHandle->cardName, identifier, snd_strerror(err)); - goto OnErrorExit; - } - - // copy value into json object and free string - jValue = json_object_new_string(value); - free(value); - return (jValue); - -OnErrorExit: - return (NULL); -} - -PUBLIC void alsaUseCaseGet(struct afb_req request) { - int ucmIdx, labelCount; - queryValuesT queryValues; - json_object *jResponse = json_object_new_object(); - json_object *jWarnings = json_object_new_array(); - const char *warnings = NULL; - - json_object *queryJ = alsaCheckQuery(request, &queryValues); - if (!queryJ) goto OnErrorExit; - ; - - ucmIdx = alsaUseCaseOpen(request, &queryValues, TRUE); - if (ucmIdx < 0) goto OnErrorExit; - - const char *cardName = ucmHandles[ucmIdx].cardName; - - const char *verb = afb_req_value(request, "verb"); - const char *mod = afb_req_value(request, "mod"); - const char *dev = afb_req_value(request, "dev"); - - if (dev && mod) { - afb_req_fail_f(request, "ucmget-labels", "SndCard devid=[%s] name=[%s] UCM mod+dev incompatible", queryValues.devid, cardName); - goto OnErrorExit; - } - - // device selection is handle as a modifier - if (dev) mod = dev; - - const char *labels = afb_req_value(request, "value"); - if (!labels) { - afb_req_fail_f(request, "ucmget-labels", "SndCard devid=[%s] name=[%s] UCM values name missing", queryValues.devid, cardName); - goto OnErrorExit; - } - - json_object *jLabels = json_tokener_parse(labels); - if (!jLabels) { - afb_req_fail_f(request, "ucmget-notjson", "labels=%s not a valid json entry", labels); - goto OnErrorExit; - }; - - enum json_type jtype = json_object_get_type(jLabels); - switch (jtype) { - json_object *tmpJ; - - case json_type_array: - labelCount = json_object_array_length(jLabels); - break; - - case json_type_string: - tmpJ = json_object_new_array(); - labelCount = 1; - json_object_array_add(tmpJ, jLabels); - jLabels = tmpJ; - break; - - default: - afb_req_fail_f(request, "ucmget-notarray", "labels=%s not valid JSON array", labels); - goto OnErrorExit; - } - - for (int idx = 0; idx < labelCount; idx++) { - json_object *jValue, *jLabel; - const char *label; - - jLabel = json_object_array_get_idx(jLabels, idx); - label = json_object_get_string(jLabel); - jValue = ucmGetValue(&ucmHandles[ucmIdx], verb, mod, label); - if (jValue) json_object_object_add(jResponse, label, jValue); - else { - json_object_array_add(jWarnings, jLabel); - } - } - - // use info section to notified not found values label - if (json_object_array_length(jWarnings) > 0) { - json_object *tmpJ = json_object_new_object(); - json_object_object_add(tmpJ, "no-context", jWarnings); - warnings = json_object_get_string(tmpJ); - } - afb_req_success(request, jResponse, warnings); - -OnErrorExit: - return; -} - -PUBLIC void alsaUseCaseSet(struct afb_req request) { - int err, ucmIdx; - queryValuesT queryValues; - json_object *jResponse = json_object_new_object(); - - json_object *queryJ = alsaCheckQuery(request, &queryValues); - if (!queryJ) goto OnErrorExit; - - - ucmIdx = alsaUseCaseOpen(request, &queryValues, TRUE); - if (ucmIdx < 0) goto OnErrorExit; - - snd_use_case_mgr_t *ucmMgr = ucmHandles[ucmIdx].ucm; - const char *cardName = ucmHandles[ucmIdx].cardName; - - const char *verb = afb_req_value(request, "verb"); - const char *mod = afb_req_value(request, "mod"); - const char *dev = afb_req_value(request, "dev"); - // Known identifiers: _verb - set current verb = value _enadev - enable given device = value _disdev - disable given device = value _swdev/{old_device} - new_device = value - - if (verb) { - err = snd_use_case_set(ucmMgr, "_verb", verb); - if (err) { - afb_req_fail_f(request, "ucmset-verb", "SndCard devid=[%s] name=[%s] Invalid UCM verb=[%s] err=%s", queryValues.devid, cardName, verb, snd_strerror(err)); - goto OnErrorExit; - } - } - - if (dev) { - err = snd_use_case_set(ucmMgr, "_enadev", dev); - if (err) { - afb_req_fail_f(request, "ucmset-dev", "SndCard devid=[%s] name=[%s] Invalid UCMverb=[%s] dev=%s err=%s", queryValues.devid, cardName, verb, dev, snd_strerror(err)); - goto OnErrorExit; - } - } - - if (mod) { - err = snd_use_case_set(ucmMgr, "_enamod", mod); - if (err) { - afb_req_fail_f(request, "ucmset-mod", "SndCard devid=[%s] name=[%s] Invalid UCM verb=[%s] mod=[%s] err=%s", queryValues.devid, cardName, verb, mod, snd_strerror(err)); - goto OnErrorExit; - } - } - - // label are requested transfert request to get - if (afb_req_value(request, "value")) return alsaUseCaseGet(request); - - if (queryValues.mode <= 3) { - json_object *jValue; - - jValue = ucmGetValue(&ucmHandles[ucmIdx], verb, dev, "OutputDspName"); - if (jValue) json_object_object_add(jResponse, "OutputDspName", jValue); - - jValue = ucmGetValue(&ucmHandles[ucmIdx], verb, dev, "PlaybackPCM"); - if (jValue) json_object_object_add(jResponse, "PlaybackPCM", jValue); - - jValue = ucmGetValue(&ucmHandles[ucmIdx], verb, mod, "CapturePCM"); - if (jValue) json_object_object_add(jResponse, "CapturePCM", jValue); - } - afb_req_success(request, jResponse, NULL); - -OnErrorExit: - return; -} - -PUBLIC void alsaUseCaseReset(struct afb_req request) { - int err, ucmIdx; - queryValuesT queryValues; - - json_object *queryJ = alsaCheckQuery(request, &queryValues); - if (!queryJ) goto OnErrorExit; - - ucmIdx = alsaUseCaseOpen(request, &queryValues, FALSE); - if (ucmIdx < 0) goto OnErrorExit; - - err = snd_use_case_mgr_reset(ucmHandles[ucmIdx].ucm); - if (err) { - afb_req_fail_f(request, "ucmreset-fail", "devid=%s Card Name=%s", queryValues.devid, ucmHandles[ucmIdx].cardName); - goto OnErrorExit; - } - - afb_req_success(request, NULL, NULL); - -OnErrorExit: - return; -} - -PUBLIC void alsaUseCaseClose(struct afb_req request) { - int err, ucmIdx; - queryValuesT queryValues; - - json_object *queryJ = alsaCheckQuery(request, &queryValues); - if (!queryJ) goto OnErrorExit; - - ucmIdx = alsaUseCaseOpen(request, &queryValues, FALSE); - if (ucmIdx < 0) goto OnErrorExit; - - err = snd_use_case_mgr_close(ucmHandles[ucmIdx].ucm); - if (err) { - afb_req_fail_f(request, "ucmreset-close", "devid=%s Card Name=%s", queryValues.devid, ucmHandles[ucmIdx].cardName); - goto OnErrorExit; - } - - // do not forget to release sound card name string - free(ucmHandles[ucmIdx].cardName); - - afb_req_success(request, NULL, NULL); - -OnErrorExit: - return; -} - - diff --git a/Alsa-afb/CMakeLists.txt b/Alsa-afb/CMakeLists.txt deleted file mode 100644 index a608a80..0000000 --- a/Alsa-afb/CMakeLists.txt +++ /dev/null @@ -1,38 +0,0 @@ -########################################################################### -# Copyright 2015, 2016, 2017 IoT.bzh -# -# author: Fulup Ar Foll -# -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at -# -# http://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. -########################################################################### - -# Add target to project dependency list -PROJECT_TARGET_ADD(alsa-lowlevel) - - # Define project Targets - ADD_LIBRARY(${TARGET_NAME} MODULE Alsa-ApiHat.c Alsa-SetGet.c Alsa-Ucm.c Alsa-AddCtl.c Alsa-RegEvt.c) - - # Binder exposes a unique public entry point - SET_TARGET_PROPERTIES(${TARGET_NAME} PROPERTIES - PREFIX "afb-" - LABELS "BINDING" - LINK_FLAGS ${BINDINGS_LINK_FLAG} - OUTPUT_NAME ${TARGET_NAME} - ) - - # Library dependencies (include updates automatically) - TARGET_LINK_LIBRARIES(${TARGET_NAME} - audio-common - ${link_libraries} - ) - diff --git a/Alsa-afb/README.md b/Alsa-afb/README.md deleted file mode 100644 index 93d2d4d..0000000 --- a/Alsa-afb/README.md +++ /dev/null @@ -1,33 +0,0 @@ ------------------------------------------------------------------------- - AlsaCore Low level binding maps AlsaLib APIs ------------------------------------------------------------------------- - -Testing: (from project directory bindings) - * start binder: ~/opt/bin/afb-daemon --ldpaths=./build --token=mysecret --roothttp=htdocs - * connect browser on http://localhost:1234?devid=hw:0 - - # List Avaliable Sound cards - http://localhost:1234/api/alsacore/getinfo - - # Get Info on a given Sound Card - http://localhost:1234/api/alsacore/getinfo?devid=hw:0 - - # Get shortname/longname for a given card - http://localhost:1234/api/alsacore/getcardid?devid=hw:0 - - # Get all controls from a given sound card - http://localhost:1234/api/alsacore/getctl?devid=hw:0 - - # Get detail on a given control (optional mode=0=verbose,1,2) - http://localhost:1234/api/alsacore/getctl?devid=hw:0&numid=1&mode=0 - -# Debug event with afb-client-demo -``` - ~/opt/bin/afb-client-demo localhost:1234/api?token=mysecret - alsacore subscribe {"devid":"hw:0"} -``` - -# Open AlsaMixer and play with Volume -``` - alsamixer -D hw:0 -``` -- cgit 1.2.3-korg