/* * Copyright (C) 2013 The Android Open Source Project * Copyright (C) 2017 Christopher N. Hesse * * 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 SAMSUNG_AUDIO_HW_H #define SAMSUNG_AUDIO_HW_H #include #include #include #include /* TODO: remove resampler if possible when AudioFlinger supports downsampling from 48 to 8 */ #include #include /* Retry for delay in FW loading*/ #define RETRY_NUMBER 10 #define RETRY_US 500000 #ifdef __LP64__ #define OFFLOAD_FX_LIBRARY_PATH "/system/lib64/soundfx/libnvvisualizer.so" #else #define OFFLOAD_FX_LIBRARY_PATH "/system/lib/soundfx/libnvvisualizer.so" #endif #ifdef PREPROCESSING_ENABLED #include #define MAX_PREPROCESSORS 3 struct effect_info_s { effect_handle_t effect_itfe; size_t num_channel_configs; channel_config_t *channel_configs; }; #endif #ifdef __LP64__ #define SOUND_TRIGGER_HAL_LIBRARY_PATH "/system/lib64/hw/sound_trigger.primary.flounder.so" #else #define SOUND_TRIGGER_HAL_LIBRARY_PATH "/system/lib/hw/sound_trigger.primary.flounder.so" #endif /* Sound devices specific to the platform * The DEVICE_OUT_* and DEVICE_IN_* should be mapped to these sound * devices to enable corresponding mixer paths */ enum { SND_DEVICE_NONE = 0, /* Playback devices */ SND_DEVICE_MIN, SND_DEVICE_OUT_BEGIN = SND_DEVICE_MIN, SND_DEVICE_OUT_EARPIECE = SND_DEVICE_OUT_BEGIN, SND_DEVICE_OUT_SPEAKER, SND_DEVICE_OUT_HEADPHONES, SND_DEVICE_OUT_SPEAKER_AND_HEADPHONES, SND_DEVICE_OUT_VOICE_EARPIECE, SND_DEVICE_OUT_VOICE_SPEAKER, SND_DEVICE_OUT_VOICE_HEADPHONES, SND_DEVICE_OUT_HDMI, SND_DEVICE_OUT_SPEAKER_AND_HDMI, SND_DEVICE_OUT_BT_SCO, SND_DEVICE_OUT_END, /* * Note: IN_BEGIN should be same as OUT_END because total number of devices * SND_DEVICES_MAX should not exceed MAX_RX + MAX_TX devices. */ /* Capture devices */ SND_DEVICE_IN_BEGIN = SND_DEVICE_OUT_END, SND_DEVICE_IN_EARPIECE_MIC = SND_DEVICE_IN_BEGIN, SND_DEVICE_IN_SPEAKER_MIC, SND_DEVICE_IN_HEADSET_MIC, SND_DEVICE_IN_EARPIECE_MIC_AEC, SND_DEVICE_IN_SPEAKER_MIC_AEC, SND_DEVICE_IN_HEADSET_MIC_AEC, SND_DEVICE_IN_VOICE_SPEAKER_MIC, SND_DEVICE_IN_VOICE_HEADSET_MIC, SND_DEVICE_IN_HDMI_MIC, SND_DEVICE_IN_BT_SCO_MIC, SND_DEVICE_IN_CAMCORDER_MIC, SND_DEVICE_IN_VOICE_REC_HEADSET_MIC, SND_DEVICE_IN_VOICE_REC_MIC, SND_DEVICE_IN_LOOPBACK_AEC, SND_DEVICE_IN_END, SND_DEVICE_MAX = SND_DEVICE_IN_END, }; /* * tinyAlsa library interprets period size as number of frames * one frame = channel_count * sizeof (pcm sample) * so if format = 16-bit PCM and channels = Stereo, frame size = 2 ch * 2 = 4 bytes * DEEP_BUFFER_OUTPUT_PERIOD_SIZE = 1024 means 1024 * 4 = 4096 bytes * We should take care of returning proper size when AudioFlinger queries for * the buffer size of an input/output stream */ #define PLAYBACK_PERIOD_SIZE 256 #define PLAYBACK_PERIOD_COUNT 2 #define PLAYBACK_DEFAULT_CHANNEL_COUNT 2 #define PLAYBACK_DEFAULT_SAMPLING_RATE 48000 #define PLAYBACK_START_THRESHOLD(size, count) (((size) * (count)) - 1) #define PLAYBACK_STOP_THRESHOLD(size, count) ((size) * ((count) + 2)) #define PLAYBACK_AVAILABLE_MIN 1 #define SCO_PERIOD_SIZE 168 #define SCO_PERIOD_COUNT 2 #define SCO_DEFAULT_CHANNEL_COUNT 2 #define SCO_DEFAULT_SAMPLING_RATE 8000 #define SCO_START_THRESHOLD 335 #define SCO_STOP_THRESHOLD 336 #define SCO_AVAILABLE_MIN 1 #define PLAYBACK_HDMI_MULTI_PERIOD_SIZE 1024 #define PLAYBACK_HDMI_MULTI_PERIOD_COUNT 4 #define PLAYBACK_HDMI_MULTI_DEFAULT_CHANNEL_COUNT 6 #define PLAYBACK_HDMI_MULTI_PERIOD_BYTES \ (PLAYBACK_HDMI_MULTI_PERIOD_SIZE * PLAYBACK_HDMI_MULTI_DEFAULT_CHANNEL_COUNT * 2) #define PLAYBACK_HDMI_MULTI_START_THRESHOLD 4095 #define PLAYBACK_HDMI_MULTI_STOP_THRESHOLD 4096 #define PLAYBACK_HDMI_MULTI_AVAILABLE_MIN 1 #define PLAYBACK_HDMI_DEFAULT_CHANNEL_COUNT 2 #define CAPTURE_PERIOD_SIZE 1024 #define CAPTURE_PERIOD_SIZE_LOW_LATENCY 256 #define CAPTURE_PERIOD_COUNT 2 #define CAPTURE_PERIOD_COUNT_LOW_LATENCY 2 #define CAPTURE_DEFAULT_CHANNEL_COUNT 2 #define CAPTURE_DEFAULT_SAMPLING_RATE 48000 #define CAPTURE_START_THRESHOLD 1 #define COMPRESS_CARD 0 #define COMPRESS_DEVICE 5 #define COMPRESS_OFFLOAD_FRAGMENT_SIZE (32 * 1024) #define COMPRESS_OFFLOAD_NUM_FRAGMENTS 4 /* ToDo: Check and update a proper value in msec */ #define COMPRESS_OFFLOAD_PLAYBACK_LATENCY 96 #define COMPRESS_PLAYBACK_VOLUME_MAX 0x10000 //NV suggested value #define DEEP_BUFFER_OUTPUT_SAMPLING_RATE 48000 #define DEEP_BUFFER_OUTPUT_PERIOD_SIZE 480 #define DEEP_BUFFER_OUTPUT_PERIOD_COUNT 8 #define MAX_SUPPORTED_CHANNEL_MASKS 2 typedef int snd_device_t; /* These are the supported use cases by the hardware. * Each usecase is mapped to a specific PCM device. * Refer to pcm_device_table[]. */ typedef enum { USECASE_INVALID = -1, /* Playback usecases */ USECASE_AUDIO_PLAYBACK = 0, USECASE_AUDIO_PLAYBACK_MULTI_CH, USECASE_AUDIO_PLAYBACK_OFFLOAD, USECASE_AUDIO_PLAYBACK_DEEP_BUFFER, /* Capture usecases */ USECASE_AUDIO_CAPTURE, USECASE_AUDIO_CAPTURE_HOTWORD, USECASE_VOICE_CALL, AUDIO_USECASE_MAX } audio_usecase_t; #define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0])) /* * tinyAlsa library interprets period size as number of frames * one frame = channel_count * sizeof (pcm sample) * so if format = 16-bit PCM and channels = Stereo, frame size = 2 ch * 2 = 4 bytes * DEEP_BUFFER_OUTPUT_PERIOD_SIZE = 1024 means 1024 * 4 = 4096 bytes * We should take care of returning proper size when AudioFlinger queries for * the buffer size of an input/output stream */ enum { OFFLOAD_CMD_EXIT, /* exit compress offload thread loop*/ OFFLOAD_CMD_DRAIN, /* send a full drain request to DSP */ OFFLOAD_CMD_PARTIAL_DRAIN, /* send a partial drain request to DSP */ OFFLOAD_CMD_WAIT_FOR_BUFFER, /* wait for buffer released by DSP */ }; enum { OFFLOAD_STATE_IDLE, OFFLOAD_STATE_PLAYING, OFFLOAD_STATE_PAUSED, OFFLOAD_STATE_PAUSED_FLUSHED, }; typedef enum { PCM_PLAYBACK = 0x1, PCM_CAPTURE = 0x2, VOICE_CALL = 0x4, PCM_HOTWORD_STREAMING = 0x8, PCM_CAPTURE_LOW_LATENCY = 0x10, } usecase_type_t; struct offload_cmd { struct listnode node; int cmd; int data[]; }; struct pcm_device_profile { struct pcm_config config; int card; int id; usecase_type_t type; audio_devices_t devices; }; struct pcm_device { struct listnode stream_list_node; struct pcm_device_profile* pcm_profile; struct pcm* pcm; int status; /* TODO: remove resampler if possible when AudioFlinger supports downsampling from 48 to 8 */ struct resampler_itfe* resampler; int16_t* res_buffer; size_t res_byte_count; int sound_trigger_handle; }; struct stream_out { struct audio_stream_out stream; pthread_mutex_t lock; /* see note below on mutex acquisition order */ pthread_mutex_t pre_lock; /* acquire before lock to avoid DOS by playback thread */ pthread_cond_t cond; struct pcm_config config; struct listnode pcm_dev_list; struct compr_config compr_config; struct compress* compr; int standby; unsigned int sample_rate; audio_channel_mask_t channel_mask; audio_format_t format; audio_devices_t devices; audio_output_flags_t flags; audio_usecase_t usecase; /* Array of supported channel mask configurations. +1 so that the last entry is always 0 */ audio_channel_mask_t supported_channel_masks[MAX_SUPPORTED_CHANNEL_MASKS + 1]; bool muted; /* total frames written, not cleared when entering standby */ uint64_t written; audio_io_handle_t handle; int non_blocking; int offload_state; pthread_cond_t offload_cond; pthread_t offload_thread; struct listnode offload_cmd_list; bool offload_thread_blocked; stream_callback_t offload_callback; void* offload_cookie; struct compr_gapless_mdata gapless_mdata; int send_new_metadata; struct audio_device* dev; #ifdef PREPROCESSING_ENABLED struct echo_reference_itfe *echo_reference; // echo_reference_generation indicates if the echo reference used by the output stream is // in sync with the one known by the audio_device. When different from the generation stored // in the audio_device the output stream must release the echo reference. // always modified with audio device and stream mutex locked. int32_t echo_reference_generation; #endif bool is_fastmixer_affinity_set; int64_t last_write_time_us; }; struct stream_in { struct audio_stream_in stream; pthread_mutex_t lock; /* see note below on mutex acquisition order */ pthread_mutex_t pre_lock; /* acquire before lock to avoid DOS by capture thread */ struct pcm_config config; struct listnode pcm_dev_list; int standby; audio_source_t source; audio_devices_t devices; uint32_t main_channels; audio_usecase_t usecase; usecase_type_t usecase_type; bool enable_aec; audio_input_flags_t input_flags; /* TODO: remove resampler if possible when AudioFlinger supports downsampling from 48 to 8 */ unsigned int requested_rate; struct resampler_itfe* resampler; struct resampler_buffer_provider buf_provider; int read_status; int16_t* read_buf; size_t read_buf_size; size_t read_buf_frames; int16_t *proc_buf_in; int16_t *proc_buf_out; size_t proc_buf_size; size_t proc_buf_frames; #ifdef PREPROCESSING_ENABLED struct echo_reference_itfe *echo_reference; int16_t *ref_buf; size_t ref_buf_size; size_t ref_buf_frames; #ifdef HW_AEC_LOOPBACK bool hw_echo_reference; int16_t* hw_ref_buf; size_t hw_ref_buf_size; #endif int num_preprocessors; struct effect_info_s preprocessors[MAX_PREPROCESSORS]; bool aux_channels_changed; uint32_t aux_channels; #endif struct audio_device* dev; bool is_fastcapture_affinity_set; int64_t last_read_time_us; int64_t frames_read; /* total frames read, not cleared when entering standby */ }; struct mixer_card { struct listnode adev_list_node; struct listnode uc_list_node[AUDIO_USECASE_MAX]; int card; struct mixer* mixer; struct audio_route* audio_route; struct timespec dsp_poweroff_time; }; struct audio_usecase { struct listnode adev_list_node; audio_usecase_t id; usecase_type_t type; audio_devices_t devices; snd_device_t out_snd_device; snd_device_t in_snd_device; struct audio_stream* stream; struct listnode mixer_list; }; struct voice_data { bool in_call; float volume; bool bluetooth_nrec; void *session; }; struct audio_device { struct audio_hw_device device; pthread_mutex_t lock; /* see note below on mutex acquisition order */ struct listnode mixer_list; audio_mode_t mode; struct stream_in* active_input; struct stream_out* primary_output; bool mic_mute; struct voice_data voice; int* snd_dev_ref_cnt; struct listnode usecase_list; bool speaker_lr_swap; unsigned int cur_hdmi_channels; bool ns_in_voice_rec; void* offload_fx_lib; int (*offload_fx_start_output)(audio_io_handle_t); int (*offload_fx_stop_output)(audio_io_handle_t); #ifdef PREPROCESSING_ENABLED struct echo_reference_itfe* echo_reference; // echo_reference_generation indicates if the echo reference used by the output stream is // in sync with the one known by the audio_device. // incremented atomically with a memory barrier and audio device mutex locked but WITHOUT // stream mutex locked: the stream will load it atomically with a barrier and re-read it // with audio device mutex if needed volatile int32_t echo_reference_generation; #endif void* sound_trigger_lib; int (*sound_trigger_open_for_streaming)(); size_t (*sound_trigger_read_samples)(int, void*, size_t); int (*sound_trigger_close_for_streaming)(int); pthread_mutex_t lock_inputs; /* see note below on mutex acquisition order */ }; /* * NOTE: when multiple mutexes have to be acquired, always take the * lock_inputs, stream_in, stream_out, then audio_device mutex. * stream_in mutex must always be before stream_out mutex * lock_inputs must be held in order to either close the input stream, or prevent closure. */ #endif // SAMSUNG_AUDIO_HW_H