Restructure filessubmit/tizen/20160530.013417accepted/tizen/mobile/20160602.022129

 - add tizen-audio-impl.h and tizen-audio-impl-xxx.c for implemetation layer that could be code variation as per HW
 - rename files
 - remove unused functions
 - rename functions according to rules("__" prefix for static functions)

[Version] 0.1.10
[Profile] Mobile
[Issue Type] Refactoring

Change-Id: Ib222389161b53efc58832384b1a86542f1de42df
Signed-off-by: Sangchul Lee <sc11.lee@samsung.com>

1 files changed, 651 insertions, 0 deletions

diff --git a/tizen-audio-impl-ucm.c b/tizen-audio-impl-ucm.c
new file mode 100644
index 0000000..1dfe50a
--- /dev/null
+++ b/tizen-audio-impl-ucm.c
@@ -0,0 +1,651 @@
+/*
+ * audio-hal
+ *
+ * Copyright (c) 2015 - 2016 Samsung Electronics Co., Ltd. All rights reserved.
+ *
+ * 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.
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#ifdef ALSA_UCM_DEBUG_TIME
+#include <sys/time.h>
+#include <time.h>
+#endif
+
+#include "tizen-audio-internal.h"
+
+#ifdef ALSA_UCM_DEBUG_TIME
+#define SND_USE_CASE_SET __set_use_case_with_time
+#else
+#define SND_USE_CASE_SET snd_use_case_set
+#endif
+
+#define UCM_PREFIX_CURRENT   ">>> UCM current"
+#define UCM_PREFIX_REQUESTED "> UCM requested"
+#define UCM_PREFIX_CHANGED   "<<< UCM changed"
+
+#define DUMP_LEN 512
+
+static void __dump_use_case(const char* prefix, const char *verb, const char *devices[], int dev_count, const char *modifiers[], int mod_count)
+{
+    int i;
+    dump_data_t* dump = NULL;
+
+    if (!(dump = _audio_dump_new(DUMP_LEN))) {
+        AUDIO_LOG_ERROR("Failed to create dump string...");
+        return;
+    }
+
+    /* Verb */
+    _audio_dump_add_str(dump, "Verb [ %s ] Devices [ ", verb ? verb : AUDIO_USE_CASE_VERB_INACTIVE);
+
+    /* Devices */
+    if (devices) {
+        for (i = 0; i < dev_count; i++) {
+            _audio_dump_add_str(dump, (i != dev_count - 1) ? "%s, " : "%s", devices[i]);
+        }
+    }
+    _audio_dump_add_str(dump, " ] Modifier [ ");
+
+    /* Modifiers */
+    if (modifiers) {
+        for (i = 0; i < mod_count; i++) {
+            _audio_dump_add_str(dump, (i != mod_count - 1) ? "%s, " : "%s", modifiers[i]);
+        }
+    }
+    _audio_dump_add_str(dump, " ]");
+
+    AUDIO_LOG_INFO("TEST %s : %s", prefix, _audio_dump_get_str(dump));
+
+    _audio_dump_free(dump);
+}
+
+#ifdef ALSA_UCM_DEBUG_TIME
+static inline int __set_use_case_with_time(snd_use_case_mgr_t *uc_mgr, const char *identifier, const char *value)
+{
+    int ret = 0;
+    struct timeval t_start, t_stop;
+    unsigned long long t_diff = 0;
+
+    gettimeofday(&t_start, NULL);
+    ret = snd_use_case_set(uc_mgr, identifier, value);
+    gettimeofday(&t_stop, NULL);
+    if (t_start.tv_sec < t_stop.tv_sec)
+        t_diff = (t_stop.tv_sec - t_start.tv_sec) * 1000000;
+    t_diff += (t_stop.tv_usec - t_start.tv_usec);
+    AUDIO_LOG_DEBUG("identifier %s value %s takes %lluusec", identifier, value, t_diff);
+
+    return ret;
+}
+#endif
+
+audio_return_t _ucm_init(audio_hal_t *ah)
+{
+    AUDIO_RETURN_VAL_IF_FAIL(ah, AUDIO_ERR_PARAMETER);
+
+    snd_use_case_mgr_open(&ah->ucm.uc_mgr, ALSA_DEFAULT_CARD);
+
+    if (!ah->ucm.uc_mgr) {
+        AUDIO_LOG_ERROR("uc_mgr open failed");
+        return AUDIO_ERR_RESOURCE;
+    }
+    return AUDIO_RET_OK;
+}
+
+audio_return_t _ucm_deinit(audio_hal_t *ah)
+{
+    AUDIO_RETURN_VAL_IF_FAIL(ah, AUDIO_ERR_PARAMETER);
+    AUDIO_RETURN_VAL_IF_FAIL(ah->ucm.uc_mgr, AUDIO_ERR_PARAMETER);
+
+    if (ah->ucm.uc_mgr) {
+        snd_use_case_mgr_close(ah->ucm.uc_mgr);
+        ah->ucm.uc_mgr = NULL;
+    }
+
+    return AUDIO_RET_OK;
+}
+
+/* UCM sequence
+    1) If verb is null or verb is not changed
+    1-1) If device is changed
+         (If there is request for same device, it will be ignored)
+         -> Set "Inactive" verb, disable modifiers & devices, set current verb again, enable devices & modifiers
+            (playback/capture device will be enabled again if there is no request for playback/capture device)
+    1-2) If device is not changed
+     1-2-1) If modifier is changed
+            (If there is request for same modifier, it will be ignored)
+            -> Disable modifiers, enable modifiers
+   2) If verb is changed
+      -> Reset, set new verb, enable devices & modifiers
+ */
+audio_return_t _ucm_set_use_case(audio_hal_t *ah, const char *verb, const char *devices[], const char *modifiers[])
+{
+    audio_return_t audio_ret = AUDIO_RET_OK;
+    int is_verb_changed = 0, is_dev_changed = 0, is_mod_changed = 0;
+    const char *old_verb = NULL, **old_dev_list = NULL, **old_mod_list = NULL;
+    int old_dev_count = 0, dev_count = 0;
+    int old_mod_count = 0, mod_count = 0;
+    const char **dis_dev_list = NULL, **ena_dev_list = NULL;
+    const char **dis_mod_list = NULL, **ena_mod_list = NULL;
+    int dis_dev_count = 0, ena_dev_count = 0;
+    int dis_mod_count = 0, ena_mod_count = 0;
+    int i = 0, j = 0;
+
+    AUDIO_RETURN_VAL_IF_FAIL(ah, AUDIO_ERR_PARAMETER);
+    AUDIO_RETURN_VAL_IF_FAIL(ah->ucm.uc_mgr, AUDIO_ERR_PARAMETER);
+    AUDIO_RETURN_VAL_IF_FAIL(verb, AUDIO_ERR_PARAMETER);
+
+    snd_use_case_get(ah->ucm.uc_mgr, "_verb", &old_verb);
+    old_dev_count = snd_use_case_get_list(ah->ucm.uc_mgr, "_enadevs", &old_dev_list);
+    old_mod_count = snd_use_case_get_list(ah->ucm.uc_mgr, "_enamods", &old_mod_list);
+    __dump_use_case(UCM_PREFIX_CURRENT, old_verb, old_dev_list, old_dev_count, old_mod_list, old_mod_count);
+
+    if (devices) {
+        for (dev_count = 0; devices[dev_count]; dev_count++);
+    }
+    if (modifiers) {
+        for (mod_count = 0; modifiers[mod_count]; mod_count++);
+    }
+
+    __dump_use_case(UCM_PREFIX_REQUESTED, verb, devices, dev_count, modifiers, mod_count);
+
+    if (old_verb && streq(verb, old_verb)) {
+        AUDIO_LOG_DEBUG("current verb and new verb is same. No need to change verb, disable devices explicitely");
+
+        if (old_dev_count > 0) {
+            dis_dev_list = (const char **)malloc(sizeof(const char *) * old_dev_count);
+            for (i = 0; i < old_dev_count; i++) {
+                dis_dev_list[i] = NULL;
+            }
+        }
+        if (dev_count > 0) {
+            ena_dev_list = (const char **)malloc(sizeof(const char *) * dev_count);
+            for (i = 0; i < dev_count; i++) {
+                ena_dev_list[i] = NULL;
+            }
+        }
+        if (old_mod_count > 0) {
+            dis_mod_list = (const char **)malloc(sizeof(const char *) * old_mod_count);
+            for (i = 0; i < old_mod_count; i++) {
+                dis_mod_list[i] = NULL;
+            }
+        }
+        if (mod_count > 0) {
+            ena_mod_list = (const char **)malloc(sizeof(const char *) * mod_count);
+            for (i = 0; i < mod_count; i++) {
+                ena_mod_list[i] = NULL;
+            }
+        }
+
+        /* update disable modifiers list which are not present in new modifier list */
+        for (i = 0; i < old_mod_count; i++) {
+            int need_disable_mod = 1;
+
+            for (j = 0; j < mod_count; j++) {
+                if (streq(old_mod_list[i], modifiers[j])) {
+                    need_disable_mod = 0;
+                    break;
+                }
+            }
+            if (need_disable_mod) {
+                if (is_mod_changed == 0)
+                    is_mod_changed = 1;
+                dis_mod_list[dis_mod_count++] = old_mod_list[i];
+            }
+        }
+
+        /* update disable devices list which are not present in new device list */
+        for (i = 0; i < old_dev_count; i++) {
+            int need_disable_dev = 1;
+
+            for (j = 0; j < dev_count; j++) {
+                if (streq(old_dev_list[i], devices[j])) {
+                    need_disable_dev = 0;
+                    break;
+                }
+            }
+            if (need_disable_dev) {
+                if (is_dev_changed == 0)
+                    is_dev_changed = 1;
+                dis_dev_list[dis_dev_count++] = old_dev_list[i];
+            }
+        }
+
+        /* update enable devices list which are not present in old device list */
+        for (i = 0; i < dev_count; i++) {
+            int need_enable_dev = 1;
+
+            for (j = 0; j < old_dev_count; j++) {
+                if (streq(devices[i], old_dev_list[j])) {
+                    need_enable_dev = 0;
+                    break;
+                }
+            }
+            if (need_enable_dev) {
+                if (is_dev_changed == 0)
+                    is_dev_changed = 1;
+                ena_dev_list[ena_dev_count++] = devices[i];
+            }
+        }
+
+        /* update enable modifiers list which are not present in old modifier list */
+        for (i = 0; i < mod_count; i++) {
+            int need_enable_mod = 1;
+
+            for (j = 0; j < old_mod_count; j++) {
+                if (streq(modifiers[i], old_mod_list[j])) {
+                    need_enable_mod = 0;
+                    break;
+                }
+            }
+            if (need_enable_mod) {
+                if (is_mod_changed == 0)
+                    is_mod_changed = 1;
+                ena_mod_list[ena_mod_count++] = modifiers[i];
+            }
+        }
+
+        /* disable modifiers */
+        for (i = 0; i < dis_mod_count; i++) {
+            AUDIO_LOG_INFO("Disable modifier : %s", dis_mod_list[i]);
+            if (snd_use_case_set(ah->ucm.uc_mgr, "_dismod", dis_mod_list[i]) < 0)
+                AUDIO_LOG_ERROR("disable %s modifier failed", dis_mod_list[i]);
+        }
+
+        /* disable devices */
+        for (i = 0; i < dis_dev_count; i++) {
+            AUDIO_LOG_INFO("Disable device : %s", dis_dev_list[i]);
+            if (snd_use_case_set(ah->ucm.uc_mgr, "_disdev", dis_dev_list[i]) < 0)
+                AUDIO_LOG_ERROR("disable %s device failed", dis_dev_list[i]);
+        }
+
+        /* enable devices */
+        for (i = 0; i < ena_dev_count; i++) {
+            AUDIO_LOG_INFO("Enable device : %s", ena_dev_list[i]);
+            if (snd_use_case_set(ah->ucm.uc_mgr, "_enadev", ena_dev_list[i]) < 0)
+                AUDIO_LOG_ERROR("enable %s device failed", ena_dev_list[i]);
+        }
+
+        /* enable modifiers */
+        for (i = 0; i < ena_mod_count; i++) {
+            AUDIO_LOG_INFO("Enable modifier : %s", ena_mod_list[i]);
+            if (snd_use_case_set(ah->ucm.uc_mgr, "_enamod", ena_mod_list[i]) < 0)
+                AUDIO_LOG_ERROR("enable %s modifier failed", ena_mod_list[i]);
+        }
+    } else {
+        is_verb_changed = 1;
+
+        AUDIO_LOG_DEBUG("Setting new verb: %s", verb);
+        /* set new verb */
+        if (snd_use_case_set(ah->ucm.uc_mgr, "_verb", verb) < 0) {
+            AUDIO_LOG_ERROR("Setting verb %s failed", verb);
+            audio_ret = AUDIO_ERR_UNDEFINED;
+            goto exit;
+        }
+        /* enable devices */
+        for (i = 0; i < dev_count; i++) {
+            AUDIO_LOG_DEBUG("Enable device : %s", devices[i]);
+            if (snd_use_case_set(ah->ucm.uc_mgr, "_enadev", devices[i]) < 0)
+                AUDIO_LOG_ERROR("Enable %s device failed", devices[i]);
+        }
+        /* enable modifiers */
+        for (i = 0; i < mod_count; i++) {
+            AUDIO_LOG_DEBUG("Enable modifier : %s", modifiers[i]);
+            if (snd_use_case_set(ah->ucm.uc_mgr, "_enamod", modifiers[i]) < 0)
+                AUDIO_LOG_ERROR("Enable %s modifier failed", modifiers[i]);
+        }
+    }
+
+exit:
+    if (old_verb)
+        free((void *)old_verb);
+    if (old_dev_list)
+        snd_use_case_free_list(old_dev_list, old_dev_count);
+    if (old_mod_list)
+        snd_use_case_free_list(old_mod_list, old_mod_count);
+    if (dis_dev_list)
+        free((void *)dis_dev_list);
+    if (ena_dev_list)
+        free((void *)ena_dev_list);
+    if (dis_mod_list)
+        free((void *)dis_mod_list);
+    if (ena_mod_list)
+        free((void *)ena_mod_list);
+
+    if (is_verb_changed == 1 || is_dev_changed == 1 || is_mod_changed == 1) {
+        const char *new_verb = NULL, **new_dev_list = NULL, **new_mod_list = NULL;
+        int new_dev_count = 0, new_mod_count = 0;
+
+        snd_use_case_get(ah->ucm.uc_mgr, "_verb", &new_verb);
+        new_dev_count = snd_use_case_get_list(ah->ucm.uc_mgr, "_enadevs", &new_dev_list);
+        new_mod_count = snd_use_case_get_list(ah->ucm.uc_mgr, "_enamods", &new_mod_list);
+        __dump_use_case(UCM_PREFIX_CHANGED, new_verb, new_dev_list, new_dev_count, new_mod_list, new_mod_count);
+
+        if (new_verb)
+            free((void *)new_verb);
+        if (new_dev_list)
+            snd_use_case_free_list(new_dev_list, new_dev_count);
+        if (new_mod_list)
+            snd_use_case_free_list(new_mod_list, new_mod_count);
+    }
+
+    return audio_ret;
+}
+
+audio_return_t _ucm_set_devices(audio_hal_t *ah, const char *verb, const char *devices[])
+{
+    audio_return_t audio_ret = AUDIO_RET_OK;
+    int is_verb_changed = 0, is_dev_changed = 0;
+    const char *old_verb = NULL, **old_dev_list = NULL;
+    int old_dev_count = 0, dev_count = 0;
+    const char **dis_dev_list = NULL, **ena_dev_list = NULL;
+    int dis_dev_count = 0, ena_dev_count = 0;
+    int i = 0, j = 0;
+
+    AUDIO_RETURN_VAL_IF_FAIL(ah, AUDIO_ERR_PARAMETER);
+    AUDIO_RETURN_VAL_IF_FAIL(ah->ucm.uc_mgr, AUDIO_ERR_PARAMETER);
+    AUDIO_RETURN_VAL_IF_FAIL(verb, AUDIO_ERR_PARAMETER);
+    AUDIO_RETURN_VAL_IF_FAIL(devices, AUDIO_ERR_PARAMETER);
+
+    snd_use_case_get(ah->ucm.uc_mgr, "_verb", &old_verb);
+    old_dev_count = snd_use_case_get_list(ah->ucm.uc_mgr, "_enadevs", &old_dev_list);
+    __dump_use_case(UCM_PREFIX_CURRENT, old_verb, old_dev_list, old_dev_count, NULL, 0);
+
+    if (devices) {
+        for (dev_count = 0; devices[dev_count]; dev_count++);
+    }
+
+    __dump_use_case(UCM_PREFIX_REQUESTED, verb, devices, dev_count, NULL, 0);
+
+    if (old_verb && streq(verb, old_verb)) {
+        AUDIO_LOG_DEBUG("current verb and new verb is same. No need to change verb, disable devices explicitely");
+
+        if (old_dev_count > 0) {
+            dis_dev_list = (const char **)malloc(sizeof(const char *) * old_dev_count);
+            for (i = 0; i < old_dev_count; i++) {
+                dis_dev_list[i] = NULL;
+            }
+        }
+        if (dev_count > 0) {
+            ena_dev_list = (const char **)malloc(sizeof(const char *) * dev_count);
+            for (i = 0; i < dev_count; i++) {
+                ena_dev_list[i] = NULL;
+            }
+        }
+
+        /* update disable devices list which are not present in new device list */
+        for (i = 0; i < old_dev_count; i++) {
+            int need_disable_dev = 1;
+
+            for (j = 0; j < dev_count; j++) {
+                if (streq(old_dev_list[i], devices[j])) {
+                    need_disable_dev = 0;
+                    break;
+                }
+            }
+            if (need_disable_dev) {
+                if (is_dev_changed == 0)
+                    is_dev_changed = 1;
+                dis_dev_list[dis_dev_count++] = old_dev_list[i];
+            }
+        }
+
+        /* update enable devices list which are not present in old device list */
+        for (i = 0; i < dev_count; i++) {
+            int need_enable_dev = 1;
+
+            for (j = 0; j < old_dev_count; j++) {
+                if (streq(devices[i], old_dev_list[j])) {
+                    need_enable_dev = 0;
+                    break;
+                }
+            }
+            if (need_enable_dev) {
+                if (is_dev_changed == 0)
+                    is_dev_changed = 1;
+                ena_dev_list[ena_dev_count++] = devices[i];
+            }
+        }
+
+        /* disable devices */
+        for (i = 0; i < dis_dev_count; i++) {
+            AUDIO_LOG_INFO("Disable device : %s", dis_dev_list[i]);
+            if (snd_use_case_set(ah->ucm.uc_mgr, "_disdev", dis_dev_list[i]) < 0)
+                AUDIO_LOG_ERROR("disable %s device failed", dis_dev_list[i]);
+        }
+
+        /* enable devices */
+        for (i = 0; i < ena_dev_count; i++) {
+            AUDIO_LOG_INFO("Enable device : %s", ena_dev_list[i]);
+            if (snd_use_case_set(ah->ucm.uc_mgr, "_enadev", ena_dev_list[i]) < 0)
+                AUDIO_LOG_ERROR("enable %s device failed", ena_dev_list[i]);
+        }
+
+    } else {
+        is_verb_changed = 1;
+
+        AUDIO_LOG_INFO("Setting new verb: %s", verb);
+        /* set new verb */
+        if (snd_use_case_set(ah->ucm.uc_mgr, "_verb", verb) < 0) {
+            AUDIO_LOG_ERROR("Setting verb %s failed", verb);
+            audio_ret = AUDIO_ERR_UNDEFINED;
+            goto exit;
+        }
+        /* enable devices */
+        for (i = 0; i < dev_count; i++) {
+            AUDIO_LOG_INFO("Enable device : %s", devices[i]);
+            if (snd_use_case_set(ah->ucm.uc_mgr, "_enadev", devices[i]) < 0)
+                AUDIO_LOG_ERROR("Enable %s device failed", devices[i]);
+        }
+    }
+
+exit:
+    if (old_verb)
+        free((void *)old_verb);
+    if (old_dev_list)
+        snd_use_case_free_list(old_dev_list, old_dev_count);
+    if (dis_dev_list)
+        free((void *)dis_dev_list);
+    if (ena_dev_list)
+        free((void *)ena_dev_list);
+
+    if (is_verb_changed == 1 || is_dev_changed == 1) {
+        const char *new_verb = NULL, **new_dev_list = NULL;
+        int new_dev_count = 0;
+
+        snd_use_case_get(ah->ucm.uc_mgr, "_verb", &new_verb);
+        new_dev_count = snd_use_case_get_list(ah->ucm.uc_mgr, "_enadevs", &new_dev_list);
+        __dump_use_case(UCM_PREFIX_CHANGED, new_verb, new_dev_list, new_dev_count, NULL, 0);
+
+        if (new_verb)
+            free((void *)new_verb);
+        if (new_dev_list)
+            snd_use_case_free_list(new_dev_list, new_dev_count);
+    }
+
+    return audio_ret;
+
+}
+
+audio_return_t _ucm_set_modifiers(audio_hal_t *ah, const char *verb, const char *modifiers[])
+{
+    audio_return_t audio_ret = AUDIO_RET_OK;
+    int is_verb_changed = 0, is_mod_changed = 0;
+    const char *old_verb = NULL, **old_mod_list = NULL;
+    int old_mod_count = 0, mod_count = 0;
+    const char **dis_mod_list = NULL, **ena_mod_list = NULL;
+    int dis_mod_count = 0, ena_mod_count = 0;
+    int i = 0, j = 0;
+
+    AUDIO_RETURN_VAL_IF_FAIL(ah, AUDIO_ERR_PARAMETER);
+    AUDIO_RETURN_VAL_IF_FAIL(ah->ucm.uc_mgr, AUDIO_ERR_PARAMETER);
+    AUDIO_RETURN_VAL_IF_FAIL(verb, AUDIO_ERR_PARAMETER);
+    AUDIO_RETURN_VAL_IF_FAIL(modifiers, AUDIO_ERR_PARAMETER);
+
+    snd_use_case_get(ah->ucm.uc_mgr, "_verb", &old_verb);
+    old_mod_count = snd_use_case_get_list(ah->ucm.uc_mgr, "_enamods", &old_mod_list);
+    __dump_use_case(UCM_PREFIX_CURRENT, old_verb, NULL, 0, old_mod_list, old_mod_count);
+
+    if (modifiers) {
+        for (mod_count = 0; modifiers[mod_count]; mod_count++);
+    }
+
+    __dump_use_case(UCM_PREFIX_REQUESTED, verb, NULL, 0, modifiers, mod_count);
+
+    if (old_verb && streq(verb, old_verb)) {
+        AUDIO_LOG_DEBUG("current verb and new verb is same. No need to change verb, disable devices explicitely");
+
+        if (old_mod_count > 0) {
+            dis_mod_list = (const char **)malloc(sizeof(const char *) * old_mod_count);
+            for (i = 0; i < old_mod_count; i++) {
+                dis_mod_list[i] = NULL;
+            }
+        }
+        if (mod_count > 0) {
+            ena_mod_list = (const char **)malloc(sizeof(const char *) * mod_count);
+            for (i = 0; i < mod_count; i++) {
+                ena_mod_list[i] = NULL;
+            }
+        }
+
+        /* update disable modifiers list which are not present in new modifier list */
+        for (i = 0; i < old_mod_count; i++) {
+            int need_disable_mod = 1;
+
+            for (j = 0; j < mod_count; j++) {
+                if (streq(old_mod_list[i], modifiers[j])) {
+                    need_disable_mod = 0;
+                    break;
+                }
+            }
+            if (need_disable_mod) {
+                if (is_mod_changed == 0)
+                    is_mod_changed = 1;
+                dis_mod_list[dis_mod_count++] = old_mod_list[i];
+            }
+        }
+
+        /* update enable modifiers list which are not present in old modifier list */
+        for (i = 0; i < mod_count; i++) {
+            int need_enable_mod = 1;
+
+            for (j = 0; j < old_mod_count; j++) {
+                if (streq(modifiers[i], old_mod_list[j])) {
+                    need_enable_mod = 0;
+                    break;
+                }
+            }
+            if (need_enable_mod) {
+                if (is_mod_changed == 0)
+                    is_mod_changed = 1;
+                ena_mod_list[ena_mod_count++] = modifiers[i];
+            }
+        }
+
+        /* disable modifiers */
+        for (i = 0; i < dis_mod_count; i++) {
+            AUDIO_LOG_INFO("Disable modifier : %s", dis_mod_list[i]);
+            if (snd_use_case_set(ah->ucm.uc_mgr, "_dismod", dis_mod_list[i]) < 0)
+                AUDIO_LOG_ERROR("disable %s modifier failed", dis_mod_list[i]);
+        }
+
+        /* enable modifiers */
+        for (i = 0; i < ena_mod_count; i++) {
+            AUDIO_LOG_INFO("Enable modifier : %s", ena_mod_list[i]);
+            if (snd_use_case_set(ah->ucm.uc_mgr, "_enamod", ena_mod_list[i]) < 0)
+                AUDIO_LOG_ERROR("enable %s modifier failed", ena_mod_list[i]);
+        }
+    } else {
+        is_verb_changed = 1;
+
+        AUDIO_LOG_DEBUG("Setting new verb: %s", verb);
+        /* set new verb */
+        if (snd_use_case_set(ah->ucm.uc_mgr, "_verb", verb) < 0) {
+            AUDIO_LOG_ERROR("Setting verb %s failed", verb);
+            audio_ret = AUDIO_ERR_UNDEFINED;
+            goto exit;
+        }
+        /* enable modifiers */
+        for (i = 0; i < mod_count; i++) {
+            AUDIO_LOG_DEBUG("Enable modifier : %s", modifiers[i]);
+            if (snd_use_case_set(ah->ucm.uc_mgr, "_enamod", modifiers[i]) < 0)
+                AUDIO_LOG_ERROR("Enable %s modifier failed", modifiers[i]);
+        }
+    }
+
+exit:
+    if (old_verb)
+        free((void *)old_verb);
+    if (old_mod_list)
+        snd_use_case_free_list(old_mod_list, old_mod_count);
+    if (dis_mod_list)
+        free((void *)dis_mod_list);
+    if (ena_mod_list)
+        free((void *)ena_mod_list);
+
+    if (is_verb_changed == 1 || is_mod_changed == 1) {
+        const char *new_verb = NULL, **new_mod_list = NULL;
+        int new_mod_count = 0;
+
+        snd_use_case_get(ah->ucm.uc_mgr, "_verb", &new_verb);
+        new_mod_count = snd_use_case_get_list(ah->ucm.uc_mgr, "_enamods", &new_mod_list);
+        __dump_use_case(UCM_PREFIX_CHANGED, new_verb, NULL, 0, new_mod_list, new_mod_count);
+
+        if (new_verb)
+            free((void *)new_verb);
+        if (new_mod_list)
+            snd_use_case_free_list(new_mod_list, new_mod_count);
+    }
+
+    return audio_ret;
+}
+
+audio_return_t _ucm_get_verb(audio_hal_t *ah, const char **value)
+{
+    audio_return_t ret = AUDIO_RET_OK;
+
+    AUDIO_RETURN_VAL_IF_FAIL(ah, AUDIO_ERR_PARAMETER);
+    AUDIO_RETURN_VAL_IF_FAIL(ah->ucm.uc_mgr, AUDIO_ERR_PARAMETER);
+    AUDIO_RETURN_VAL_IF_FAIL(value, AUDIO_ERR_PARAMETER);
+
+    if ((ret = snd_use_case_get(ah->ucm.uc_mgr, "_verb", value)) < 0) {
+        AUDIO_LOG_ERROR("Getting current verb failed: Reason %d", ret);
+        ret = AUDIO_ERR_UNDEFINED;
+    }
+
+    return ret;
+}
+
+audio_return_t _ucm_reset_use_case(audio_hal_t *ah)
+{
+    audio_return_t ret = AUDIO_RET_OK;
+
+    AUDIO_RETURN_VAL_IF_FAIL(ah, AUDIO_ERR_PARAMETER);
+    AUDIO_RETURN_VAL_IF_FAIL(ah->ucm.uc_mgr, AUDIO_ERR_PARAMETER);
+
+    AUDIO_LOG_INFO(">>> UCM reset Verb [ %s ]", AUDIO_USE_CASE_VERB_INACTIVE);
+
+    if ((ret = snd_use_case_set(ah->ucm.uc_mgr, "_verb", AUDIO_USE_CASE_VERB_INACTIVE)) < 0) {
+        AUDIO_LOG_ERROR("Reset use case failed: Reason %d", ret);
+        ret = AUDIO_ERR_UNDEFINED;
+    }
+
+    return ret;
+}
\ No newline at end of file