57 lines
1.7 KiB
C
57 lines
1.7 KiB
C
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#ifndef __AUDIO_H__
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#define __AUDIO_H__
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#include "system/task.h"
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#include "device/device.h"
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#include "usb_bulk_transfer.h"
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#include "usb/host/usb_host.h"
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#include "usb/device/uac_audio.h"
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#define HEADPHONE_SUPPORTED 0x01
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#define MICROPHONE_SUPPORTED 0x02
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#define HEADSET_SUPPORTED 0x03
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struct audio_streaming_t {
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u8 bNumEndpoints;
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u8 bFormatType; /** FORMAT_TYPE_1 */
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u8 bNrChannels; /** physical channels in the stream */
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u8 bSubframeSize;
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u8 bBitResolution;
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u8 bSamFreqType;
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u32 tSamFreq[8];
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u8 host_ep; //主机传输端点
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u8 ep; //从机端点(由描述符中指定)
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u8 ep_Interval;
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u16 ep_max_packet_size;
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};
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struct audio_device_t {
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u8 interface_num; //接口号
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u8 subclass;
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u8 support;
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void *parent;
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struct audio_streaming_t as[8];
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};
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int usb_audio_parser(struct usb_host_device *host_dev, u8 interface_num, const u8 *pBuf);
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// API
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int usb_audio_play_put_buf(void *ptr, u32 len);
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int usb_audio_record_get_buf(void *ptr, u32 len);
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//headphone api
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void set_usb_audio_play_volume(u16 vol);
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void usb_audio_start_play(const usb_dev usb_id, u8 channel, u8 bit_reso, u32 sample_rate); //指定播放数据的声道数,位数,采样率
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void usb_audio_stop_play(const usb_dev usb_id);
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void usb_audio_pause_play(void);
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void usb_audio_resume_play(void);
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//microphone api
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void set_usb_audio_record_volume(u16 vol);
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void usb_audio_start_record(const usb_dev usb_id, u8 bit_reso, u32 sample_rate); //指定录制数据的位数,采样率
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void usb_audio_stop_record(const usb_dev usb_id);
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void usb_audio_pause_record(void);
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void usb_audio_resume_record(void);
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#endif
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