AudSys

概述

AudSys 是一个管理音频外设的系统. 它提供了一种基于命令的调用方式, 操作用户创建的音频流. 抽象出3种音频模块: record 上行模块, playbk 下行模块以及ANC模块.

功能简介:

  • 驱动管理

  • 资源分配

  • 时序控制

  • 同步操作

  • 杂音消除

  • 转采样

  • 频偏校准

  • 啸叫检测

  • 能量估计

  • 饱和检测

  • 增益控制

  • 主动降噪

  • 均衡器调整

  • 语音检测等

模块功能特性

record 模块支持以下功能：

  • 支持 ADC PDM_rx I2S_rx VAD DUMP 等外设采样率配置, 频率率转换功能

  • 支持 -95dB~95dB 数字音量调整, 支持 -6dB~-12dB 模拟 gain 调整

  • 支持 Amic, Dmic 支持16bit和24bit位宽, 支持I2S_rx UAC_rx 16bit 24bit 位宽

  • 支持 Amic, Dmic I2S_rx数据啸叫检测

  • 支持 audio timer 定时触发 Amic, Dmic I2S_rx 数据启动, 精度 0.5us

  • 支持 Amic 和 Dmic 混合开启

playbk 模块支持以下功能：

  • 支持 DAC, PDM_tx, I2S_tx通过ASRC转采样,调频偏

  • 支持 -95dB~95dB 数字音量调整, 支持-19dB~-3dB模拟gain调整

  • 支持 DAC, PDM_tx, 16bit,24bit位宽, 支持I2S_tx UAC_tx 16bit 24bit 位宽

  • 支持 DAC, PDM_tx, I2S_tx 数据啸叫检测

  • 支持 DAC, PDM_tx, I2S_tx 能量估计和饱和检测

  • 支持 audio timer 定时触发DAC, I2S_tx数据启动, 精度 0.5us

  • 支持 DAC spk PA(Power Amplifier)动态开关

  • 支持 DAC spk DRE(Dynamic range enhancer)动态开关

  • 支持 DAC, PDM_tx, I2S_tx 主辅两路数据硬件混合, 如 tone 和音乐混合

  • 支持 DAC, PDM_tx, I2S_tx 混音主辅两路音量占比设置

  • 支持 DAC, PDM_tx, I2S_tx 硬件EQ(均衡器)切换,每路数据支持28个 biquad 滤波器

ANC 模块支持以下功能：

  • 支持输入外设选择 Amic, Dmic 或混合Amic Dmic

  • 支持输出外设选择 DAC spk

  • 支持 -19dB~-3dB DAC spk 模拟 gain, 支持 -95dB~95dB 数字音量调整

  • 支持 -6dB~-12dB Amic模拟 gain 固定调整

  • 支持输入输出硬件数据啸叫检测

  • 支持输入输出能量估计和饱和检测

  • 支持输出 spk PA(Power Amplifier)动态开关

  • 支持输出 spk DRE(Dynamic range enhancer)动态开关

  • 支持灵活可配的 biquad 滤波器系数操控

  • 支持无杂音的切换 ANC 滤波器系数

  • 支持最短 200ms 左右的场景系数切换

Audsys框图

  • 以对象的方式操作 AudSys, 提供的3种音频流硬件资源, 使用简易.

  • 内部外设模块化, 方便定制和裁剪.

  • 不同产品的音频流控制和数据传输保持一致, 代码继承性强.

  • 增加新的音频外设, 不影响原有产品代码, 扩展容易.

  • 音频流控制和传输以命令方式, 可读性强.

../../_images/audsys_1.png

AudSys包括接口层和设备层

资源依赖

  • AUDIO_ADC

  • AUDIO_DAC

  • PDM

  • I2S

  • ANC

  • ASRC

  • AUDIO_INTERFACE

  • AUDIO_DUMP

  • DMA

  • USB_LIB

AudSys用法流程

用法流程简介

AudSys 创建销毁接口

  • audsys对外提供init,deinit和3个create和destroy接口.

  • init和deinit只初始化软件状态, 包括创建audsys task, 创建锁, 队列等全局变量.不直接操作寄存器.

  • 可多次创建销毁, 每次创建表示开启一个stream流, 如录音, 播放, 语音检测, ANC等stream.

1 WQ_RET audsys_record_create(audsys_record_info_t *info, audsys_record_obj_t **obj);
2 WQ_RET audsys_record_destroy(audsys_record_obj_t *obj);
3 WQ_RET audsys_playbk_create(audsys_playbk_info_t *info, audsys_playbk_obj_t **obj);
4 WQ_RET audsys_playbk_destroy(audsys_playbk_obj_t *obj);
5 WQ_RET audsys_anc_create(audsys_anc_info_t *info, audsys_anc_obj_t **obj);
6 WQ_RET audsys_anc_destroy(audsys_anc_obj_t *obj);

AudSys 创建参数

  • 每次创建传入资源信息和 object 指针的指针, 会获取 object 对应的外设信息和操作函数指针

  • 用户通过 obj 下发命令和操作audio功能模块

 1 typedef struct audsys_record_obj {
 2     audsys_record_t *record;
 3     audsys_record_cmd_fn cmd_fn;
 4 } audsys_record_obj_t;
 5
 6 typedef struct audsys_playbk_obj {
 7     audsys_playbk_t *playback;
 8     audsys_playbk_cmd_fn cmd_fn;
 9 } audsys_playbk_obj_t;
10
11 typedef struct audsys_anc_obj {
12     audsys_anc_t *anc;
13     audsys_anc_cmd_fn cmd_fn;
14 } audsys_anc_obj_t;

AudSys 命令枚举

  • 以 recorder 为例, 用户通过传入命令 ID 操作功能对应的函数,命令 ID 如下

 1 enum {
 2     AUDSYS_RECORD_CMD_OPEN,
 3     AUDSYS_RECORD_CMD_CLOSE,
 4     AUDSYS_RECORD_CMD_START,
 5     AUDSYS_RECORD_CMD_STOP,
 6     AUDSYS_RECORD_CMD_GAIN,
 7     AUDSYS_RECORD_CMD_HOWL_DET,
 8     AUDSYS_RECORD_CMD_PM,
 9     AUDSYS_RECORD_CMD_VAD,
10     AUDSYS_RECORD_CMD_DUMP,
11     AUDSYS_RECORD_CMD_TIMER,
12     AUDSYS_RECORD_CMD_PREPARE_DATA,
13     AUDSYS_RECORD_CMD_GET_INFO,
14     AUDSYS_RECORD_CMD_TYPE_MAX,
15 };
16 typedef uint8_t audsys_record_cmd_t;

AudSys 命令函数

  • 以 recorder 为例, 命令对应函数如下.

 1 static audsys_record_cmd_ops_t g_record_cmd_ops_tbl[AUDSYS_RECORD_CMD_TYPE_MAX] = {
 2     [AUDSYS_RECORD_CMD_OPEN] = record_cmd_open,
 3     [AUDSYS_RECORD_CMD_CLOSE] = record_cmd_close,
 4     [AUDSYS_RECORD_CMD_START] = record_cmd_start,
 5     [AUDSYS_RECORD_CMD_STOP] = record_cmd_stop,
 6     [AUDSYS_RECORD_CMD_GAIN] = record_cmd_gain,
 7     [AUDSYS_RECORD_CMD_HOWL_DET] = record_cmd_howl_det,
 8     [AUDSYS_RECORD_CMD_PM] = record_cmd_power_monitor,
 9     [AUDSYS_RECORD_CMD_VAD] = record_cmd_vad,
10     [AUDSYS_RECORD_CMD_DUMP] = record_cmd_dump,
11     [AUDSYS_RECORD_CMD_TIMER] = record_cmd_timer,
12     [AUDSYS_RECORD_CMD_PREPARE_DATA] = record_cmd_prepare_data,
13     [AUDSYS_RECORD_CMD_GET_INFO] = record_cmd_get_info,
14 };

AudSys 命令参数

  • 以 recorder 为例, 每条命令都要对应参数, 用户通过参数传递音频外设信息

 1 typedef union audsys_record_msg {
 2     record_cfg_t record_cfg;
 3     record_dump_cfg_t record_dump;
 4     record_gain_t record_gain;
 5     audsys_record_get_info_t record_info;
 6     record_data_t record_data;
 7     aud_howl_detect_cfg_t howl_detect;
 8     aud_power_monitor_cfg_t power_monitor;
 9     aud_timer_cfg_t aud_timer;
10 } audsys_record_msg_u;

AudSys 注册外设

  • 以 recorder 为例, stream创建时, 设备层会注册外设函数表,用户通过创建时传入的device type决定使用哪些外设.

 1 aud_record_dev_ops_t *aud_dev_register_record_ops(void)
 2 {
 3     aud_record_dev_ops_t *ops =
 4         wq_heap_caps_malloc(sizeof(aud_record_dev_ops_t), MALLOC_CAP_NONE);
 5
 6     ops->amic_ops = aud_adc_get_ops();
 7     ops->dmic_ops = aud_pdm_get_rx_ops();
 8     ops->i2s_ops = aud_i2s_get_rx_ops();
 9 #if is_defined(CONFIG_AUDIO_UAC_RX_ENABLE)
10     ops->uac_ops = aud_uac_get_rx_ops();
11 #endif
12     ops->vad_ops = aud_vad_get_ops();
13     ops->dump_ops = aud_dump_get_ops();
14     ops->gain_ops = aud_gain_rx_get_ops();
15 #ifdef CONFIG_AUDIO_HOWL_DETECT_ENABLE
16     ops->howl_det_ops = aud_howl_det_get_ops();
17 #endif
18     ops->pm_ops = aud_pm_get_ops();
19     ops->timer_ops = aud_timer_get_ops();
20
21     return ops;
22 }

音频功能模块宏控制使能

  • 可通过配置宏, 控制device或功能模块是否使能和编译.

 1 CONFIG_AUDIO_CLOCK_15_36M=y
 2 /* CONFIG_AUDIO_CLOCK_16M is not set */
 3 /* CONFIG_AUDIO_CLOCK_32M is not set */
 4 CONFIG_AUDIO_CLOCK=15360000
 5 /* CONFIG_AUDIO_PDM_RX_ENABLE is not set */
 6 /* CONFIG_AUDIO_PDM_TX_ENABLE is not set */
 7 /* CONFIG_AUDIO_DAC_ENABLE is not set */
 8 /* CONFIG_AUDIO_ANC_ENABLE is not set */
 9 CONFIG_AUDIO_I2S_TX_ENABLE=y
10 /* CONFIG_AUDIO_EQ_ENABLE is not set */
11 /* CONFIG_AUDIO_HOWL_DETECT_ENABLE is not set */
12 /* CONFIG_AUDIO_POWER_MONITOR_ENABLE is not set */
13 /* CONFIG_AUDIO_DRE_USER_CTL is not set */
14 /* CONFIG_LOOPBACK_ENABLE is not set */
15 CONFIG_AUDIO_UAC_RX_ENABLE=y

开I2S TX stream

  • 以I2S TX stream为例介绍配置流程

 1 /** 该参数为外设固定参数，每次创建stream只需传入一次 */
 2 static aud_dev_out_map_t g_playbk_i2s_map = {
 3     /** 选择外设类型，如I2S,PDM,ADC,DAC,USB... */
 4     .dev_type = AUD_DEV_TYPE_I2S,
 5     /** 选择使用i2s port0或其他i2s模块 */
 6     .port_id = 0,
 7     /** 设置音频通路个数，0:通道0, 1:通道1, 2:双通道，4:4通道，8:8通道 */
 8     .out_chns = 2,
 9     /** 音频外设的固定属性参数 */
10     .param = i2s_out_param,
11 };
12
13 /** 声明 i2s out stream 的对象指针，和参数变量 */
14 audsys_playbk_obj_t *playbk_i2s_obj;
15 audsys_playbk_msg_u playbk_msg;
16 g_playbk_i2s_info.map = &g_playbk_i2s_map;
17
18 /** 创建i2s out 音频流，申请必要内存，音存储频信息 */
19 audsys_playbk_create(&g_playbk_i2s_info, &playbk_i2s_obj);
20
21 /** 下发启动 i2s tx外设的必要信息 */
22 playbk_msg.playbk_cfg.sample_rate = 48000;
23 playbk_msg.playbk_cfg.bit_width = AUDSYS_PLAYBK_BIT_WIDTH_24_L;
24 playbk_msg.playbk_cfg.trigger_mode = AUDSYS_PLAYBK_TIMER_TRIGGER;
25 playbk_msg.playbk_cfg.timer_id = 0;
26 playbk_msg.playbk_cfg.path = AUDSYS_PLAYBK_PATH_MAIN;
27 playbk_msg.playbk_cfg.done_cb = playbk_i2s_complete_callback;
28
29 /** 通过命令下发启动参数，等待complete callback回调，启动完成 */
30 playbk_i2s_obj->cmd_fn(playbk_i2s_obj, AUDSYS_PLAYBK_CMD_OPEN, &playbk_msg);
31 playbk_i2s_obj->cmd_fn(playbk_i2s_obj, AUDSYS_PLAYBK_CMD_START, &playbk_msg);
32
33 /** 通过命令下发数据参数，上传dma数据信息，等待dma 传输完成中断 callback*/
34 g_playbk_i2s_obj->cmd_fn(g_playbk_i2s_obj, AUDSYS_PLAYBK_CMD_PREPARE_DATA, &playbk_msg);
35
36 /** 通过命令下发关闭参数，等待complete callback回调，关闭完成 */
37 playbk_i2s_obj->cmd_fn(playbk_i2s_obj, AUDSYS_PLAYBK_CMD_STOP, &playbk_msg);
38 playbk_i2s_obj->cmd_fn(playbk_i2s_obj, AUDSYS_PLAYBK_CMD_CLOSE, &playbk_msg);
39
40 /** 销毁i2s out音频流，释放内存，恢复存储信息为初始值 */
41 audsys_record_destroy(playbk_i2s_obj);

参考示例

::

  • examples/audio_sys_loopback_demo

  • examples/usb_demo/uac_speaker

API 介绍

Defines

DBGLOG_LIB_AUDIO_INFO(fmt, ...)
DBGLOG_LIB_AUDIO_WARNING(fmt, ...)
DBGLOG_LIB_AUDIO_ERROR(fmt, ...)
AUDSYS_SAMPLE_RATE_16K
AUDSYS_SAMPLE_RATE_32K
AUDSYS_SAMPLE_RATE_44P1K
AUDSYS_SAMPLE_RATE_48K
AUDSYS_SAMPLE_RATE_88P2K
AUDSYS_SAMPLE_RATE_96K
AUDSYS_SAMPLE_RATE_128K
AUDSYS_SAMPLE_RATE_192K
AUDSYS_SAMPLE_RATE_384K

Functions

WQ_RET audsys_init(void)

create audsys task, lock, queue, initialize audio peripheral software state, do not manipulate hardware registers

void audsys_deinit(void)

destroy audsys tasks, locks, queues, restores audio peripheral software state, does not operate hardware registers

WQ_RET audsys_record_create(audsys_record_info_t *info, audsys_record_obj_t **obj)

create an uplink audio data stream, request the necessary memory for the audio data stream, provide user-set audio map information, and provide linked list nodes for each peripheral. Obtain the audio peripheral information and function pointer information required for the data stream. Users can operate peripherals corresponding to data flows by using commands and parameters

参数:

  • info -- create recorder audio object parameters

  • obj -- recorder audio object

返回:

WQ_RET

WQ_RET audsys_record_destroy(audsys_record_obj_t *obj)

destroy data stream,release the memory of the record request, clear the status, clear the linked list and peripheral nodes

参数:

obj -- recorder audio object

返回:

WQ_RET

WQ_RET audsys_playbk_create(audsys_playbk_info_t *info, audsys_playbk_obj_t **obj)

create an downlink audio data stream, request the necessary memory for the audio data stream, provide user-set audio map information, and provide linked list nodes for each peripheral. Obtain the audio peripheral information and function pointer information required for the data stream. Users can operate peripherals corresponding to data flows by using commands and parameters

参数:

  • info -- create playback audio object parameters

  • obj -- playback audio object

返回:

WQ_RET

WQ_RET audsys_playbk_destroy(audsys_playbk_obj_t *obj)

destroy data stream,release the memory of the playback request, clear the status, clear the linked list and peripheral nodes

参数:

obj -- playback audio object

返回:

WQ_RET

WQ_RET audsys_anc_create(audsys_anc_info_t *info, audsys_anc_obj_t **obj)

create an anc audio data stream, request the necessary memory for the audio data stream, provide user-set audio map information, and provide linked list nodes for each peripheral. Obtain the audio peripheral information and function pointer information required for the data stream. Users can operate peripherals corresponding to data flows by using commands and parameters

参数:

  • info -- create anc audio object parameters

  • obj -- anc audio object

返回:

WQ_RET

WQ_RET audsys_anc_destroy(audsys_anc_obj_t *obj)

destroy data stream,release the memory of the anc request, clear the status, clear the linked list and peripheral nodes

参数:

obj -- anc audio object

返回:

WQ_RET

Typedefs

typedef uint8_t audsys_playbk_cmd_t
typedef uint8_t audsys_playbk_gain_type_id_t
typedef uint8_t audsys_playbk_path_type_t
typedef uint8_t audsys_playbk_bit_width_t
typedef uint8_t playbk_get_info_id_t
typedef uint8_t audsys_playbk_trigger_mode
typedef void (*audsys_playbk_complete_callback)(audsys_playbk_cmd_t cmd, audsys_playbk_path_type_t path)
typedef void (*audsys_playbk_underrun_callback)(audsys_playbk_path_type_t path)
typedef void (*audsys_playbk_gain_callback)(uint32_t id)
typedef void (*audsys_playbk_data_callback)(void *buf, uint32_t length, void *param)
typedef struct audsys_playbk_cfg audsys_playbk_cfg_t

playback open configure structure

typedef struct audsys_playbk_eq_cfg audsys_playbk_eq_cfg_t

playback eq structure

typedef struct audsys_playbk_gain audsys_playbk_gain_t

playback gain structure

typedef struct audsys_playbk_pa audsys_playbk_pa_t

playback pa structure

typedef struct audsys_playbk_dre audsys_playbk_dre_t

playback dre structure

typedef struct audsys_playbk_lp audsys_playbk_lp_t

playback lowpower structure

typedef struct audsys_playbk_mixer audsys_playbk_mixer_t

playback mixer structure

typedef union _playbk_info_param playbk_info_param_u
typedef struct audsys_playbk_get_info audsys_playbk_get_info_t
typedef struct _playeback_eq_set playeback_eq_set_t

new eq paramater from app

typedef struct audsys_playbk_buf_entry audsys_playbk_buf_entry_t
typedef struct audsys_playbk_data audsys_playbk_data_t
typedef struct playbk_howl_detect_src playbk_howl_detect_src_t
typedef struct audsys_playbk_howl_detect_param audsys_playbk_howl_detect_param_t
typedef union audsys_playbk_msg audsys_playbk_msg_u
typedef void (*audsys_playbk_cmd_ops_t)(const void *obj, const audsys_playbk_msg_u *msg)
typedef struct audsys_playbk_info audsys_playbk_info_t
typedef struct audsys_playbk audsys_playbk_t

audio sys msg info

typedef void (*audsys_playbk_cmd_fn)(const void *obj, audsys_playbk_cmd_t cmd, const audsys_playbk_msg_u *msg)
typedef struct audsys_playbk_obj audsys_playbk_obj_t

playback object information,contains global variables, functions, os locks and more

Enums

enum [anonymous]

Values:

enumerator AUDSYS_PLAYBK_CMD_OPEN

audio output stream open cmd

enumerator AUDSYS_PLAYBK_CMD_CLOSE

audio output stream close cmd

enumerator AUDSYS_PLAYBK_CMD_START

audio output stream start cmd

enumerator AUDSYS_PLAYBK_CMD_STOP

audio output stream stop cmd

enumerator AUDSYS_PLAYBK_CMD_LP

audio output stream lowpower on off cmd

enumerator AUDSYS_PLAYBK_CMD_MIXER

audio output stream mixer set ratio cmd

enumerator AUDSYS_PLAYBK_CMD_TIMER

audio output stream audio timer config cmd

enumerator AUDSYS_PLAYBK_CMD_PREPARE_DATA

audio output stream transfer prepare data cmd

enumerator AUDSYS_PLAYBK_CMD_GET_INFO

audio output stream get information cmd

enumerator AUDSYS_PLAYBK_CMD_GET_GAIN

audio output stream get gain operate cmd

enumerator AUDSYS_PLAYBK_CMD_TYPE_MAX

audio output stream cmd id maximum number

enum [anonymous]

playbk gain type options

Values:

enumerator AUDSYS_PLAYBK_GAIN_MUTE
enumerator AUDSYS_PLAYBK_GAIN_UNMUTE
enumerator AUDSYS_PLAYBK_GAIN_SET_TGT_DB
enumerator AUDSYS_PLAYBK_GAIN_GET_CUR_DB
enum [anonymous]

data path options

Values:

enumerator AUDSYS_PLAYBK_PATH_MAIN

for music/voice

enumerator AUDSYS_PLAYBK_PATH_AUX

for tone or loopback

enumerator AUDSYS_PLAYBK_PATH_MAX

playback path module max

enum [anonymous]

Values:

enumerator AUDSYS_PLAYBK_BIT_WIDTH_24_L

low 24bit valid bit in 32bit

enumerator AUDSYS_PLAYBK_BIT_WIDTH_16_L

16bit valid bit in 32bit

enumerator AUDSYS_PLAYBK_BIT_WIDTH_16

16bit valid bit in 16bit

enumerator AUDSYS_PLAYBK_BIT_WIDTH_24_H
enum [anonymous]

this enumeration is the id that gets the information

Values:

enumerator AUDSYS_PLAYBK_GET_LATCHED_CNT

audio output stream get latch asrc output sample points cnt

enumerator AUDSYS_PLAYBK_GET_FREERUN_CNT

audio output stream get asrc output sample points cnt

enumerator AUDSYS_PLAYBK_GET_INFO_TIMER

audio output stream get timer information

enumerator AUDSYS_PLAYBK_GET_INFO_OUT_CHN

audio output stream get out channel

enumerator AUDSYS_PLAYBK_GET_INFO_SPK_DC_CAL

audio output stream get dc offset calibration

enumerator AUDSYS_PLAYBK_GET_INFO_SPK_DC_CAL_CHECK

audio output stream get dc offset whether is successful

enum [anonymous]

Values:

enumerator AUDSYS_PLAYBK_SELF_TRIGGER

audio output stream data trigger by self

enumerator AUDSYS_PLAYBK_TIMER_TRIGGER

audio output stream data trigger by audio timer

enumerator AUDSYS_PLAYBK_SOFTWARE_TRIGGER

audio output stream data trigger by software

enumerator AUDSYS_PLAYBK_BT_TRIGGER

audio output stream data trigger by BT

enumerator AUDSYS_PLAYBK_TRIGGER_MODE_MAX

Functions

audsys_playbk_cmd_ops_t *audsys_playbk_get_cmd_ops(void)
void audsys_playbk_init(audsys_playbk_obj_t *obj)

playback init the software status

playback init the software status

参数:

obj -- object point

void audsys_playbk_deinit(audsys_playbk_obj_t *obj)

playback deinit the software status

参数:

obj -- object point

struct audsys_playbk_cfg
#include <audsys_playbk.h>

playback open configure structure

Public Members

audsys_playbk_complete_callback done_cb

reference playback complete callback

uint32_t sample_rate

the sample rate of data input to device, 16k,44.1k,48k,96k...

uint8_t bit_width

reference to audsys_bit_width

uint8_t trigger_mode

reference to audsys_trigger_mode

uint8_t timer_id

audio timer id is valid if trigger mode is timer mode

audsys_playbk_path_type_t path

reference to data path

struct audsys_playbk_eq_cfg
#include <audsys_playbk.h>

playback eq structure

Public Members

aud_eq_cfg_t *cfg

equalizer config parameter

struct audsys_playbk_gain
#include <audsys_playbk.h>

playback gain structure

Public Members

audsys_playbk_gain_type_id_t type_id

playbk gain type id

int8_t db

gain value(unit db)

audsys_playbk_path_type_t path

data path

struct audsys_playbk_pa
#include <audsys_playbk.h>

playback pa structure

Public Members

bool pa_en

pa enable

bool is_fast

pa enable mode, true: fast mode; false: slow mode

struct audsys_playbk_dre
#include <audsys_playbk.h>

playback dre structure

Public Members

aud_gain_dac_analog_gain_t analog_gain

target analog gain

aud_gain_done_mode_t done_mode

gain adjust done mode

aud_gain_ctrl_mode_t ctrl_mode

dre control mode

audsys_playbk_gain_callback cb

set done callback

struct audsys_playbk_lp
#include <audsys_playbk.h>

playback lowpower structure

Public Members

bool lp_en

lowpower enable

struct audsys_playbk_mixer
#include <audsys_playbk.h>

playback mixer structure

Public Members

uint8_t ratio

mix rate = (aux / main)*100%

union _playbk_info_param

Public Members

uint32_t latched_sample_cnt

BT latch asrc sample counter

audsys_playbk_path_type_t path

main path or aux path

struct _playbk_info_param::[anonymous] latched_cnt
uint32_t freerun_sample_cnt

asrc freerun sample counter

struct _playbk_info_param::[anonymous] freerun_cnt
wq_spk_dc_cal_t *spk_dc_cal

dc offset calibration information

WQ_SPK_DAC_OUT_VRMS vrms

spk out voltage type

bool lp_en

lowpower enable

bool is_correct

spk dc off calibration return, true is ok, false is wrong

struct _playbk_info_param::[anonymous] dc_cal
uint8_t timer_id

audio timer id for when trigger mode is timer trigger

uint8_t out_chn

output channel,0 is mono0, 1 is mono1, 2 is dual channel,3 is 3 channel

struct audsys_playbk_get_info

Public Members

playbk_info_param_u param

module infomation

playbk_get_info_id_t info_id

infomation module id

struct _playeback_eq_set
#include <audsys_playbk.h>

new eq paramater from app

Public Members

float overgain

all the frequence gain offset

uint32_t reserved

reserved for future

aud_eq_band_param_t *band

eq band paramater pointer

int16_t *gain

eq gain offset pointer

uint8_t band_num

eq band paramater number

uint8_t gain_num

eq gain paramater number

bool ready

whther to switch eq

bool use_default

whether to use default paramater svaed in kv

struct audsys_playbk_buf_entry

Public Members

uint8_t *addr

playback buffer first address

uint32_t len

single channel buffer length

struct audsys_playbk_data

Public Members

audsys_playbk_buf_entry_t *buf

buffer parameter

audsys_playbk_data_callback cb

data complete callback

audsys_playbk_path_type_t path

main path or aux path

struct playbk_howl_detect_src

Public Members

uint8_t out_chn

Speaker output channel, 0 or 1

uint8_t rxdfe_chn

RX-DFE channel used to dump speaker

struct audsys_playbk_howl_detect_param

Public Members

aud_howl_detect_cfg_t cfg

audio howling detect config

playbk_howl_detect_src_t src[AUD_HOWL_DETECT_SRC_MAX]

audio howling detect source

union audsys_playbk_msg

Public Members

audsys_playbk_cfg_t playbk_cfg
audsys_playbk_eq_cfg_t playbk_eq
audsys_playbk_gain_t playbk_gain
audsys_playbk_pa_t playbk_pa
audsys_playbk_dre_t playbk_dre
audsys_playbk_lp_t playbk_lp
audsys_playbk_mixer_t playbk_mixer
audsys_playbk_get_info_t playbk_info
audsys_playbk_data_t playbk_data
audsys_playbk_howl_detect_param_t howl_detect
aud_power_monitor_cfg_t power_monitor
aud_timer_cfg_t aud_timer
struct audsys_playbk_info

Public Members

aud_dev_out_map_t *map

playback audmap information

audsys_playbk_underrun_callback underrun_cb

playback underflow callback

struct audsys_playbk
#include <audsys_playbk.h>

audio sys msg info

Public Members

audsys_playbk_info_t *dev_info

audio_map_info_t *map;

aud_playbk_dev_ops_t *dev_ops

device operate interface pointer

audsys_playbk_cmd_ops_t *cmd_ops

playback cmd operate interface pointer

struct list_head play_list

playback list

uint8_t out_chn

out channel refs AUD_DEV_OUT_CHN_MAX

struct audsys_playbk_obj
#include <audsys_playbk.h>

playback object information,contains global variables, functions, os locks and more

Public Members

audsys_playbk_t *playback
audsys_playbk_cmd_fn cmd_fn
void *state

Defines

RECORD_MIC_BIT_WIDTH_24
RECORD_MIC_AUDSYS_PLAYBK_BIT_WIDTH_16

Typedefs

typedef uint8_t audsys_record_cmd_t
typedef uint8_t record_set_info_id_t
typedef uint8_t record_get_info_id_t
typedef uint8_t record_gain_type_id_t
typedef uint8_t record_vad_cmd_id_t
typedef uint8_t record_type_id_t
typedef uint8_t audsys_record_trigger_mode
typedef void (*audsys_record_complete_callback)(audsys_record_cmd_t cmd)
typedef void (*audsys_record_overflow_cb_t)(uint32_t path_id)
typedef union _record_set_info_param record_set_info_param_u
typedef union _record_info_param record_info_param_u

record status structure

typedef struct audsys_record_set_info audsys_record_set_info_t
typedef struct audsys_record_get_info audsys_record_get_info_t
typedef struct _record_cfg record_cfg_t

record start configure structure

typedef struct _record_gain record_gain_t

record gain structure

typedef struct _dump_cfg record_dump_cfg_t
typedef struct _record_howl_detect_src record_howl_detect_src_t
typedef struct _record_howl_detect_param record_howl_detect_param_t
typedef struct audsys_record_buf_entry audsys_record_buf_entry_t
typedef void (*audsys_record_data_callback)(void *buf, uint32_t length, void *param)
typedef struct _record_data record_data_t
typedef union audsys_record_msg audsys_record_msg_u
typedef void (*audsys_record_cmd_ops_t)(const void *obj, const audsys_record_msg_u *msg)
typedef struct audsys_record_info audsys_record_info_t
typedef struct audsys_record audsys_record_t
typedef void (*audsys_record_cmd_fn)(const void *obj, audsys_record_cmd_t cmd, const audsys_record_msg_u *msg)
typedef struct audsys_record_obj audsys_record_obj_t

recorder object information,contains global variables, functions, os locks, vad parameter and more

Enums

enum [anonymous]

Values:

enumerator AUDIO_VOICE_PATH_0

audio input channel 0

enumerator AUDIO_VOICE_PATH_1

audio input channel 1

enumerator AUDIO_VOICE_PATH_2

audio input channel 2

enumerator AUDIO_VOICE_PATH_3

audio input channel 3

enumerator AUDIO_VOICE_PATH_4

audio input channel 4

enumerator AUDIO_VOICE_PATH_5

audio input channel 5

enumerator AUDIO_VOICE_PATH_VAD

audio input vad channel

enumerator AUDIO_VOICE_PATH_MAX

audio input channel maximum number

enum [anonymous]

Values:

enumerator AUDSYS_RECORD_CMD_OPEN

audio input stream open cmd

enumerator AUDSYS_RECORD_CMD_CLOSE

audio input stream close cmd

enumerator AUDSYS_RECORD_CMD_START

audio input stream start cmd

enumerator AUDSYS_RECORD_CMD_STOP

audio input stream stop cmd

enumerator AUDSYS_RECORD_CMD_SET_GAIN

audio input stream set gain operate cmd

enumerator AUDSYS_RECORD_CMD_DUMP

audio input stream dump on off cmd

enumerator AUDSYS_RECORD_CMD_PRE_RECORD_OPEN
enumerator AUDSYS_RECORD_CMD_PRE_RECORD_CLOSE
enumerator AUDSYS_RECORD_CMD_TIMER

audio input stream timer config cmd

enumerator AUDSYS_RECORD_CMD_PREPARE_DATA

audio input stream transfer prepare data cmd

enumerator AUDSYS_RECORD_CMD_SET_INFO

audio input stream set information cmd

enumerator AUDSYS_RECORD_CMD_GET_INFO

audio input stream get information cmd

enumerator AUDSYS_RECORD_CMD_GET_GAIN

audio input stream get gain operate cmd

enumerator AUDSYS_RECORD_CMD_TYPE_MAX

audio input stream cmd id maximum number

enum [anonymous]

Values:

enumerator RECORD_SET_INFO_DATA_STOP

audio input stream set data stop infomation

enum [anonymous]

Values:

enumerator RECORD_GET_INFO_MIC

audio input stream get mic parameters information

enumerator RECORD_GET_INFO_TIMER

audio input stream get mic audio timer information

enumerator RECORD_GET_INFO_PATH_BITMAP

audio input stream get channel used bitmap information

enumerator RECORD_GET_INFO_VAD

audio input stream get vad information

enum [anonymous]

Values:

enumerator RECORD_GAIN_SET_DIG_GAIN

set digital gain

enumerator RECORD_GAIN_GET_DIG_GAIN

get digital gain

enumerator RECORD_GAIN_SET_ANA_GAIN

set analog gain

enumerator RECORD_GAIN_GET_ANA_GAIN

get analog gain

enum [anonymous]

Values:

enumerator RECORD_VAD_CMD_OPEN

vad open

enumerator RECORD_VAD_CMD_START

vad start

enumerator RECORD_VAD_CMD_STOP

vad stop

enumerator RECORD_VAD_CMD_CLOSE

vad close

enumerator RECORD_VAD_CMD_SET_STATUS

vad set status

enum [anonymous]

Values:

enumerator RECORD_TYPE_VOICE

audio input stream recorder module

enumerator RECORD_TYPE_VAD

audio input stream vad module

enumerator RECORD_TYPE_DUMP

audio input stream audio dump module

enum [anonymous]

Values:

enumerator AUDSYS_RECORD_SELF_TRIGGER

audio input stream data trigger by self

enumerator AUDSYS_RECORD_TIMER_TRIGGER

audio input stream data trigger by audio timer

enumerator AUDSYS_RECORD_SOFTWARE_TRIGGER

audio input stream data trigger by software

enumerator AUDSYS_RECORD_TIMER_AND_SW_TRIGGER

audio input stream data trigger by software and audio timer

enumerator AUDSYS_RECORD_BT_TRIGGER

audio input stream data trigger by BT

enumerator AUDSYS_RECORD_TRIGGER_MODE_MAX

Functions

audsys_record_cmd_ops_t *audsys_record_get_cmd_ops(void)
void audsys_record_init(audsys_record_obj_t *obj)

recorde init the software status

参数:

obj -- record audio object

void audsys_record_deinit(audsys_record_obj_t *obj)

recorde deinit the software status

参数:

obj -- record audio object

union _record_set_info_param

Public Members

uint32_t info_data
union _record_info_param
#include <audsys_record.h>

record status structure

Public Members

uint32_t in_path_bitmap

record input path type bitmap

uint8_t id_map

mic id mask

uint8_t cnt

mic id count

struct _record_info_param::[anonymous] mic
uint8_t timer_id

audio timer id for when trigger mode is timer trigger

struct audsys_record_set_info

Public Members

record_set_info_param_u param

module infomation

record_set_info_id_t info_id

infomation module id

struct audsys_record_get_info

Public Members

record_info_param_u param

module infomation

record_get_info_id_t info_id

infomation module id

struct _record_cfg
#include <audsys_record.h>

record start configure structure

Public Members

audsys_record_complete_callback done_cb

record complete callback

uint32_t sample_rate

the sample rate of device output to data, 16k,44.1k,48k,96k

bool is_16_bitwidth

reference to mic bit width. true:16bit false:24bit

uint8_t trigger_mode

reference to audsys_record_trigger_mode

uint8_t timer_id

audio timer id for when trigger mode is timer trigger

bool less_delay_en

enable less delay mode

uint8_t voice_path_bitmap

record open/close voice path mic bitmap

struct _record_gain
#include <audsys_record.h>

record gain structure

Public Members

int16_t gain_db

mic gain value, unit 1 dB

record_gain_type_id_t type_id

input stream gain module id

uint8_t mic_id

mic id

uint8_t chn_id

mic digital front end channel

struct _dump_cfg

Public Members

aud_dump_cfg_t cfg

audio dump config parameter

bool en

dump start or stop

uint8_t timer_id

dump start trigger timer id

struct _record_howl_detect_src

Public Members

aud_dev_type_t dev_type

adc, pdm or i2s, usb type...

uint8_t port_id

adc port id, pdm rx port id or i2s rx module id, usb audio rx port id

struct _record_howl_detect_param

Public Members

aud_howl_detect_cfg_t cfg

audio howling detect config

record_howl_detect_src_t src[AUD_HOWL_DETECT_SRC_MAX]

audio howling detect source

struct audsys_record_buf_entry

Public Members

uint8_t *addr

recorderr buffer first address

uint32_t len

multi channel buffer length

struct _record_data

Public Members

audsys_record_buf_entry_t buf

buffer parameter

audsys_record_data_callback cb

data complete callback

uint8_t id

data channel device id

record_type_id_t type

recorder module id

union audsys_record_msg

Public Members

record_cfg_t record_cfg
record_dump_cfg_t record_dump
record_gain_t record_gain
audsys_record_set_info_t set_info
audsys_record_get_info_t record_info
record_data_t record_data
record_howl_detect_param_t howl_detect
aud_power_monitor_cfg_t power_monitor
aud_timer_cfg_t aud_timer
struct audsys_record_info

Public Members

aud_dev_in_map_t *map

recorderr audmap information

audsys_record_overflow_cb_t overflow_cb

record overflow callback

uint8_t map_cnt

the number of groups using audmap

uint8_t vad_en

if using vad, is vad path id. otherwise, is 0xff

struct audsys_record

Public Members

audsys_record_info_t *dev_info

audio_map_info_t *map;

aud_record_dev_ops_t *dev_ops

device operate interface pointer

audsys_record_cmd_ops_t *cmd_ops

recorderr cmd operate interface pointer

struct list_head voice_list

voice list

uint32_t in_path_bitmap

mic input path channels bitmap

struct audsys_record_obj
#include <audsys_record.h>

recorder object information,contains global variables, functions, os locks, vad parameter and more

Public Members

audsys_record_t *record
audsys_record_cmd_fn cmd_fn
void *state

Typedefs

typedef uint8_t audsys_anc_cmd_t
typedef uint8_t audsys_anc_get_info_id_t
typedef uint8_t audsys_anc_gain_type_id_t
typedef void (*audsys_anc_gain_callback)(uint32_t id)
typedef union _anc_info_param audsys_anc_info_param_t
typedef struct audsys_anc_get_info audsys_anc_get_info_t
typedef struct audsys_anc_switch audsys_anc_switch_t
typedef struct audsys_anc_open_info audsys_anc_open_info_t
typedef struct audsys_anc_close_info audsys_anc_close_info_t
typedef struct _anc_gain audsys_anc_gain_t
typedef struct audsys_anc_pa audsys_anc_pa_t
typedef struct audsys_anc_switch_done_info audsys_anc_switch_done_info_t
typedef struct audsys_anc_start_info audsys_anc_start_info_t
typedef struct audsys_anc_dre audsys_anc_dre_t

playback dre structure

typedef struct audsys_anc_drc_time audsys_anc_drc_time_t
typedef struct audsys_anc_drc_amplitude audsys_anc_drc_amplitude_t
typedef union anc_howl_detect_src anc_howl_detect_src_u
typedef struct audsys_anc_howl_detect audsys_anc_howl_detect_t
typedef union audsys_anc_msg audsys_anc_msg_u
typedef struct audsys_anc_dev_record_map audsys_anc_dev_record_map_t
typedef void (*audsys_anc_cmd_ops_t)(const void *obj, const audsys_anc_msg_u *msg)
typedef struct audsys_anc_info audsys_anc_info_t
typedef struct audsys_anc audsys_anc_t
typedef void (*audsys_anc_cmd_fn)(const void *obj, audsys_anc_cmd_t cmd, const audsys_anc_msg_u *msg)
typedef struct audsys_anc_obj audsys_anc_obj_t

anc object information,contains global variables, functions, os locks, anc coeff parameter and more

Enums

enum [anonymous]

Values:

enumerator AUDIO_ANC_PATH_FF0_L

audio anc ff mic 0

enumerator AUDIO_ANC_PATH_FF1_L

audio anc ff mic 1

enumerator AUDIO_ANC_PATH_FF2_L

audio anc ff mic 2

enumerator AUDIO_ANC_PATH_FF3_L

audio anc ff mic 3

enumerator AUDIO_ANC_PATH_FF0_R

audio anc stereo right channel ff mic 0

enumerator AUDIO_ANC_PATH_FF1_R

audio anc stereo right channel ff mic 1

enumerator AUDIO_ANC_PATH_FF2_R

audio anc stereo right channel ff mic 2

enumerator AUDIO_ANC_PATH_FF3_R

audio anc stereo right channel ff mic 3

enumerator AUDIO_ANC_PATH_FB0_L

audio anc left fb mic 0

enumerator AUDIO_ANC_PATH_FB1_L

audio anc left fb mic 1

enumerator AUDIO_ANC_PATH_FB2_L

audio anc left fb mic 2

enumerator AUDIO_ANC_PATH_FB3_L

audio anc left fb mic 3

enumerator AUDIO_ANC_PATH_FB0_R

audio anc right fb mic 0

enumerator AUDIO_ANC_PATH_FB1_R

audio anc right fb mic 1

enumerator AUDIO_ANC_PATH_FB2_R

audio anc right fb mic 2

enumerator AUDIO_ANC_PATH_FB3_R

audio anc right fb mic 3

enumerator AUDIO_ANC_PATH_MAX

audio anc data path maximum number

enum [anonymous]

Values:

enumerator AUDSYS_ANC_CMD_TIMER

audio anc stream audio timer config cmd

enumerator AUDSYS_ANC_CMD_DRC_USER_CTRL_ENTER

audio anc stream drc user control mode enter cmd

enumerator AUDSYS_ANC_CMD_DRC_USER_CTRL_EXIT

audio anc stream drc user control mode exit cmd

enumerator AUDSYS_ANC_CMD_GET_IN_GAIN

audio anc stream get input gain operate cmd

enumerator AUDSYS_ANC_CMD_GET_INFO

audio anc stream get information cmd audio anc stream switch cmd ATTENTION!!! less than or equal to get_info, audsys will directly manipulate the function without queue massage

enumerator AUDSYS_ANC_CMD_OPEN

audio anc open adc dac, and connect anc path

enumerator AUDSYS_ANC_CMD_CLOSE

audio anc close adc dac, and disconnect anc path

enumerator AUDSYS_ANC_CMD_SWITCH

audio anc coeff switch

enumerator AUDSYS_ANC_CMD_SET_IN_GAIN

audio anc stream set input gain operate cmd

enumerator AUDSYS_ANC_CMD_SET_DRC_TIME

audio anc stream set drc time

enumerator AUDSYS_ANC_CMD_TYPE_MAX

audio anc stream cmd id max

enum audsys_switch_anc_mode_t

Values:

enumerator AUDSYS_SWITCH_ANC_MODE_NORMAL

use config slow way to switch anc mode

enumerator AUDSYS_SWITCH_ANC_MODE_FAST

use default param and not have pop way to fast switch anc mode

enumerator AUDSYS_SWITCH_ANC_MODE_IMDL

switch same as AUDSYS_SWITCH_ANC_MODE_FAST

enumerator AUDSYS_SWITCH_ANC_MODE_DIRECT

switch anc mode just 1 step

enumerator AUDSYS_SWITCH_ANC_JUST_CLOSE

switch anc mode just need to close anc coeff

enumerator AUDSYS_SWITCH_ANC_MODE_MAX

switch anc mode max

enum [anonymous]

Values:

enumerator ANC_GET_ENABLE_STATE

this is to get anc enable status, true is use anc module, false is not

enumerator ANC_GET_IN_USE

this is to get anc open status, 1 is started, 0 is not

enumerator ANC_GET_FB_COEFF_IDX

this is to get anc fb coeff idx

enumerator ANC_GET_DENOISE_MODE

get anc flash coeff by fb and ff coeff idx parameters is aud_anc_get_coeff_addr_t

this is to get anc current denoise mode, reference to AUD_DENOISE_MODE

Return:

uint8_t WQ_RET WQ_RET_OK for anc get succeed.

enumerator ANC_GET_FLASH_COEFF_BY_COEFF_IDX
enumerator ANC_GET_COEFF_INUSE

get the anc mode of the ff/fb coeff idx parameters is aud_anc_get_coeff_idx_t

get in use coeff

Return:

uint8_t WQ_RET WQ_RET_OK for anc get succeed.

enumerator ANC_GET_ANC_MODE_COEFF_IDX
enumerator ANC_GET_DRC_TIME

get DRC time configuration

enumerator ANC_GET_SWITCHING_STATE

get audio switching state

enumerator ANC_GET_TIMER_IDX

get audio timer id

enumerator ANC_GET_ANC_FS

get ANC frequence of sample rate

enum [anonymous]

Values:

enumerator AUDSYS_ANC_GAIN_SET_DIG_GAIN

anc set digital gain

enumerator AUDSYS_ANC_GAIN_GET_DIG_GAIN

anc get digital gain

enumerator AUDSYS_ANC_GAIN_SET_ANA_GAIN

anc set analog gain

enumerator AUDSYS_ANC_GAIN_GET_ANA_GAIN

anc get analog gain

Functions

audsys_anc_cmd_ops_t *audsys_anc_get_cmd_ops(void)

This function is to get anc command option table.

返回:

audsys_anc_cmd_ops_t *, the anc command option table pointer

void audsys_anc_init(audsys_anc_obj_t *obj)

This function is to init anc software status.

参数:

obj -- config anc obj parameter

void audsys_anc_deinit(audsys_anc_obj_t *obj)

This function is to deinit anc software status.

参数:

obj -- config anc obj parameter

union _anc_info_param

Public Members

aud_anc_get_coeff_addr_t coeff_addr

anc coeff from flash, refer to aud_anc_get_coeff_addr_t

aud_anc_get_coeff_inuse_t coeff_inuse

anc coeff in use, refer to aud_anc_get_coeff_inuse_t

aud_anc_get_coeff_idx_t coeff_idx

anc coeff index, refer to aud_anc_get_coeff_idx_t

uint8_t anc_en

whether to use the anc module

uint8_t in_use

if 1 anc is open, else anc is close

uint8_t denoise_mode
uint8_t fb_coeff_idx
uint8_t timer_id
uint32_t anc_fs
aud_anc_drc_time_cfg_t drc_time_cfg
struct audsys_anc_get_info

Public Members

audsys_anc_get_info_id_t info_id

anc get info index, refer to audsys_anc_get_info_id_t

audsys_anc_info_param_t param

anc get info parameter, refer to audsys_anc_info_param_t

struct audsys_anc_switch

Public Members

aud_anc_switch_done_cb switch_cb

anc coeff switch done callback

aud_anc_switch_param_t param

anc coeff switch parameter

struct audsys_anc_open_info

Public Members

uint32_t sample_rate

mic data sample rate, must be equale to the recorder sample rate

struct audsys_anc_close_info

Public Members

uint8_t denoise_mode
struct _anc_gain

Public Members

int16_t gain_db

anc mic gain value, unit 1 dB

audsys_anc_gain_type_id_t gain_type_id

anc gain config type

uint8_t mic_id

anc source mic index

uint8_t chn_id

anc source rxdfe channel

struct audsys_anc_pa

Public Members

bool pa_en

pa enable or not

bool is_fast

pa enable mode, true: fast mode; false: slow mode

struct audsys_anc_switch_done_info

Public Members

uint8_t denoise_mode

anc coeff switch denoise mode, refer to AUD_ANC_DENOISE

uint8_t fast_mode

anc coeff switch fast mode

struct audsys_anc_start_info

Public Members

uint32_t cmd

anc start info cmd

struct audsys_anc_dre
#include <audsys_anc.h>

playback dre structure

Public Members

aud_gain_dac_analog_gain_t analog_gain

anc config dynamic range enhancer target analog gain

aud_gain_done_mode_t done_mode

anc config dynamic range enhancer gain adjust done mode

aud_gain_ctrl_mode_t ctrl_mode

anc config dynamic range enhancer mode, refer to aud_gain_ctrl_mode_t

audsys_anc_gain_callback cb

anc config dynamic range enhancer mode done callback

struct audsys_anc_drc_time

Public Members

aud_anc_drc_time_cfg_t drc_time_cfg

DRC time config

struct audsys_anc_drc_amplitude

Public Members

aud_anc_drc_amplitude_cfg_t drc_amplitude_cfg

DRC amplitude config

union anc_howl_detect_src

Public Members

aud_dev_type_t dev_type

adc, pdm or i2s, usb type...

uint8_t port_id

adc port id, pdm rx port id or i2s rx module id, usb audio rx port id

struct anc_howl_detect_src::[anonymous] mic_src

howling detect MIC source

uint8_t out_chn

Speaker output channel, 0 or 1

uint8_t rxdfe_chn

RX-DFE channel used to dump speaker

struct anc_howl_detect_src::[anonymous] spk_src

howling detect SPK source

struct audsys_anc_howl_detect

Public Members

aud_howl_detect_cfg_t cfg

audio howling detect config

aud_howl_detect_type_t type

audio howling detect type

anc_howl_detect_src_u src[AUD_HOWL_DETECT_SRC_MAX]

audio howling detect source

union audsys_anc_msg

Public Members

audsys_anc_switch_done_info_t done_info

anc message switch done info

audsys_anc_switch_t anc_switch

anc message switch config

audsys_anc_get_info_t anc_info

anc message get anc cofig info

audsys_anc_open_info_t open_info

anc message open info

audsys_anc_close_info_t close_info

anc message close info

audsys_anc_start_info_t start_info

anc message start info

audsys_anc_gain_t anc_gain

anc message gain info

audsys_anc_pa_t anc_pa

anc message pa contrl

audsys_anc_dre_t anc_dre

anc message dre contrl

audsys_anc_drc_time_t anc_drc_time

anc message drc time

audsys_anc_howl_detect_t howl_detect

anc message howling detect config

aud_power_monitor_cfg_t power_monitor

anc message power monitor config

aud_timer_cfg_t aud_timer

anc message audio timer config

audsys_anc_drc_amplitude_t anc_drc_amplitude

anc message drc amplitude config

struct audsys_anc_dev_record_map

Public Members

aud_dev_in_map_t *record_map

record audmap

uint8_t record_path_num

record audmap path num

struct audsys_anc_info

Public Members

aud_dev_in_map_t *in_map

anc input audmap

aud_dev_out_map_t *out_map

anc output audmap

aud_anc_storage_cfg_t *storage

anc path and coeff config Explanation on parameter record_info This parameter is used by ANC during creation and requires users to configure it according to the actual situation. The specific configuration is as follows: 1、If anc and rxdfe share rxdfe, then this parameter requires a non empty audmap with a value of record. Please refer to the structure of Audsys-anc_dev_record_map_t for details;

2、If anc and record do not share rxdfe, then this parameter needs to be explicitly set to NULL. Therefore, users need to accurately set the audmap based on their actual needs

audsys_anc_dev_record_map_t *record_info
uint8_t in_path_num

anc input channels

struct audsys_anc

Public Members

audsys_anc_info_t *dev_info

anc config info

aud_anc_coeff_param_t *coeff_param

anc coeff param, refer to aud_anc_coeff_param_t

aud_anc_dev_ops_t *dev_ops

anc device option

audsys_anc_cmd_ops_t *cmd_ops

anc command option

struct list_head in_list

anc input list

struct list_head out_list

anc output list

struct list_head rxdfe_in_list

anc rxdfe input list

uint32_t in_path_bitmap

mic input path channels bitmap

uint8_t out_chn

anc out channels

struct audsys_anc_obj
#include <audsys_anc.h>

anc object information,contains global variables, functions, os locks, anc coeff parameter and more

Public Members

audsys_anc_t *anc
audsys_anc_cmd_fn cmd_fn