4 * Copyright (c) 2016 Samsung Electronics Co., Ltd. All rights reserved.
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at
10 * http://www.apache.org/licenses/LICENSE-2.0
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
29 #include "tizen-audio-internal.h"
31 #ifdef __MIXER_PARAM_DUMP
32 static void __dump_mixer_param(char *dump, long *param, int size)
36 for (i = 0; i < size; i++) {
37 len = sprintf(dump, "%ld", *param);
50 audio_return_t _mixer_control_init(audio_hal_t *ah)
52 AUDIO_RETURN_VAL_IF_FAIL(ah, AUDIO_ERR_PARAMETER);
54 pthread_mutex_init(&(ah->mixer.mutex), NULL);
58 audio_return_t _mixer_control_deinit(audio_hal_t *ah)
60 AUDIO_RETURN_VAL_IF_FAIL(ah, AUDIO_ERR_PARAMETER);
62 pthread_mutex_destroy(&(ah->mixer.mutex));
66 audio_return_t _mixer_control_set_param(audio_hal_t *ah, const char* ctl_name, snd_ctl_elem_value_t* param, int size)
68 AUDIO_RETURN_VAL_IF_FAIL(ah, AUDIO_ERR_PARAMETER);
74 audio_return_t _mixer_control_get_value(audio_hal_t *ah, const char *ctl_name, int *val)
77 snd_ctl_elem_value_t *control;
78 snd_ctl_elem_id_t *id;
79 snd_ctl_elem_info_t *info;
80 snd_ctl_elem_type_t type;
82 int ret = 0, count = 0, i = 0;
84 AUDIO_RETURN_VAL_IF_FAIL(ah, AUDIO_ERR_PARAMETER);
85 AUDIO_RETURN_VAL_IF_FAIL(ctl_name, AUDIO_ERR_PARAMETER);
86 AUDIO_RETURN_VAL_IF_FAIL(val, AUDIO_ERR_PARAMETER);
88 pthread_mutex_lock(&(ah->mixer.mutex));
90 ret = snd_ctl_open(&handle, ALSA_DEFAULT_CARD, 0);
92 AUDIO_LOG_ERROR("snd_ctl_open error, %s\n", snd_strerror(ret));
93 pthread_mutex_unlock(&(ah->mixer.mutex));
94 return AUDIO_ERR_IOCTL;
99 snd_ctl_elem_id_alloca(&id);
100 snd_ctl_elem_info_alloca(&info);
101 snd_ctl_elem_value_alloca(&control);
103 snd_ctl_elem_id_set_interface(id, SND_CTL_ELEM_IFACE_MIXER);
104 snd_ctl_elem_id_set_name(id, ctl_name);
106 snd_ctl_elem_info_set_id(info, id);
107 if (snd_ctl_elem_info(handle, info) < 0) {
108 AUDIO_LOG_ERROR("Cannot find control element: %s\n", ctl_name);
111 snd_ctl_elem_info_get_id(info, id);
113 type = snd_ctl_elem_info_get_type(info);
114 count = snd_ctl_elem_info_get_count(info);
116 snd_ctl_elem_value_set_id(control, id);
118 if (snd_ctl_elem_read(handle, control) < 0) {
119 AUDIO_LOG_ERROR("snd_ctl_elem_read failed \n");
124 case SND_CTL_ELEM_TYPE_BOOLEAN:
125 *val = snd_ctl_elem_value_get_boolean(control, i);
127 case SND_CTL_ELEM_TYPE_INTEGER:
128 for (i = 0; i < count; i++)
129 *val = snd_ctl_elem_value_get_integer(control, i);
131 case SND_CTL_ELEM_TYPE_ENUMERATED:
132 for (i = 0; i < count; i++)
133 *val = snd_ctl_elem_value_get_enumerated(control, i);
136 AUDIO_LOG_WARN("unsupported control element type\n");
140 snd_ctl_close(handle);
143 AUDIO_LOG_INFO("get mixer(%s) = %d success", ctl_name, *val);
146 pthread_mutex_unlock(&(ah->mixer.mutex));
150 AUDIO_LOG_ERROR("Error\n");
151 snd_ctl_close(handle);
152 pthread_mutex_unlock(&(ah->mixer.mutex));
153 return AUDIO_ERR_UNDEFINED;
156 audio_return_t _mixer_control_set_value(audio_hal_t *ah, const char *ctl_name, int val)
159 snd_ctl_elem_value_t *control;
160 snd_ctl_elem_id_t *id;
161 snd_ctl_elem_info_t *info;
162 snd_ctl_elem_type_t type;
163 int ret = 0, count = 0, i = 0;
165 AUDIO_RETURN_VAL_IF_FAIL(ah, AUDIO_ERR_PARAMETER);
166 AUDIO_RETURN_VAL_IF_FAIL(ctl_name, AUDIO_ERR_PARAMETER);
168 pthread_mutex_lock(&(ah->mixer.mutex));
170 ret = snd_ctl_open(&handle, ALSA_DEFAULT_CARD, 0);
172 AUDIO_LOG_ERROR("snd_ctl_open error, card: %s: %s", ALSA_DEFAULT_CARD, snd_strerror(ret));
173 pthread_mutex_unlock(&(ah->mixer.mutex));
174 return AUDIO_ERR_IOCTL;
179 snd_ctl_elem_id_alloca(&id);
180 snd_ctl_elem_info_alloca(&info);
181 snd_ctl_elem_value_alloca(&control);
183 snd_ctl_elem_id_set_interface(id, SND_CTL_ELEM_IFACE_MIXER);
184 snd_ctl_elem_id_set_name(id, ctl_name);
186 snd_ctl_elem_info_set_id(info, id);
187 if (snd_ctl_elem_info(handle, info) < 0) {
188 AUDIO_LOG_ERROR("Cannot find control element: %s", ctl_name);
191 snd_ctl_elem_info_get_id(info, id);
193 type = snd_ctl_elem_info_get_type(info);
194 count = snd_ctl_elem_info_get_count(info);
196 snd_ctl_elem_value_set_id(control, id);
198 snd_ctl_elem_read(handle, control);
201 case SND_CTL_ELEM_TYPE_BOOLEAN:
202 for (i = 0; i < count; i++)
203 snd_ctl_elem_value_set_boolean(control, i, val);
205 case SND_CTL_ELEM_TYPE_INTEGER:
206 for (i = 0; i < count; i++)
207 snd_ctl_elem_value_set_integer(control, i, val);
209 case SND_CTL_ELEM_TYPE_ENUMERATED:
210 for (i = 0; i < count; i++)
211 snd_ctl_elem_value_set_enumerated(control, i, val);
215 AUDIO_LOG_WARN("unsupported control element type");
219 snd_ctl_elem_write(handle, control);
221 snd_ctl_close(handle);
223 AUDIO_LOG_INFO("set mixer(%s) = %d success", ctl_name, val);
225 pthread_mutex_unlock(&(ah->mixer.mutex));
229 AUDIO_LOG_ERROR("Error");
230 snd_ctl_close(handle);
231 pthread_mutex_unlock(&(ah->mixer.mutex));
232 return AUDIO_ERR_UNDEFINED;
235 audio_return_t _mixer_control_set_value_string(audio_hal_t *ah, const char* ctl_name, const char* value)
237 AUDIO_RETURN_VAL_IF_FAIL(ah, AUDIO_ERR_PARAMETER);
238 AUDIO_RETURN_VAL_IF_FAIL(ctl_name, AUDIO_ERR_PARAMETER);
245 audio_return_t _mixer_control_get_element(audio_hal_t *ah, const char *ctl_name, snd_hctl_elem_t **elem)
247 AUDIO_RETURN_VAL_IF_FAIL(ah, AUDIO_ERR_PARAMETER);
248 AUDIO_RETURN_VAL_IF_FAIL(ctl_name, AUDIO_ERR_PARAMETER);
249 AUDIO_RETURN_VAL_IF_FAIL(elem, AUDIO_ERR_PARAMETER);