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      1 /*
      2  * Copyright (C) 2013-2014 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #ifndef AUDIO_PLATFORM_API_H
     18 #define AUDIO_PLATFORM_API_H
     19 
     20 void *platform_init(struct audio_device *adev);
     21 void platform_deinit(void *platform);
     22 const char *platform_get_snd_device_name(snd_device_t snd_device);
     23 void platform_add_backend_name(void *platform, char *mixer_path,
     24                                                     snd_device_t snd_device);
     25 int platform_get_pcm_device_id(audio_usecase_t usecase, int device_type);
     26 int platform_get_snd_device_index(char *snd_device_index_name);
     27 int platform_set_snd_device_acdb_id(snd_device_t snd_device, unsigned int acdb_id);
     28 int platform_send_audio_calibration(void *platform, snd_device_t snd_device);
     29 int platform_switch_voice_call_device_pre(void *platform);
     30 int platform_switch_voice_call_enable_device_config(void *platform,
     31                                                     snd_device_t out_snd_device,
     32                                                     snd_device_t in_snd_device);
     33 int platform_switch_voice_call_device_post(void *platform,
     34                                            snd_device_t out_snd_device,
     35                                            snd_device_t in_snd_device);
     36 int platform_switch_voice_call_usecase_route_post(void *platform,
     37                                                   snd_device_t out_snd_device,
     38                                                   snd_device_t in_snd_device);
     39 int platform_start_voice_call(void *platform, uint32_t vsid);
     40 int platform_stop_voice_call(void *platform, uint32_t vsid);
     41 int platform_set_voice_volume(void *platform, int volume);
     42 int platform_set_mic_mute(void *platform, bool state);
     43 int platform_get_sample_rate(void *platform, uint32_t *rate);
     44 int platform_set_device_mute(void *platform, bool state, char *dir);
     45 snd_device_t platform_get_output_snd_device(void *platform, audio_devices_t devices);
     46 snd_device_t platform_get_input_snd_device(void *platform, audio_devices_t out_device);
     47 int platform_set_hdmi_channels(void *platform, int channel_count);
     48 int platform_edid_get_max_channels(void *platform);
     49 
     50 /* returns the latency for a usecase in Us */
     51 int64_t platform_render_latency(audio_usecase_t usecase);
     52 
     53 int platform_set_incall_recording_session_id(void *platform,
     54                                              uint32_t session_id, int rec_mode);
     55 int platform_stop_incall_recording_usecase(void *platform);
     56 int platform_start_incall_music_usecase(void *platform);
     57 int platform_stop_incall_music_usecase(void *platform);
     58 
     59 int platform_set_snd_device_backend(snd_device_t snd_device, const char * backend);
     60 
     61 /* From platform_info_parser.c */
     62 int platform_info_init(void);
     63 
     64 int platform_get_usecase_index(const char * usecase);
     65 int platform_set_usecase_pcm_id(audio_usecase_t usecase, int32_t type, int32_t pcm_id);
     66 void platform_set_echo_reference(struct audio_device *adev, bool enable, audio_devices_t out_device);
     67 
     68 #endif // AUDIO_PLATFORM_API_H
     69