77 lines
2.0 KiB
C
77 lines
2.0 KiB
C
/*
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* Copyright (c) 2022, sakumisu
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef USBH_AUDIO_H
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#define USBH_AUDIO_H
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#include "usb_audio.h"
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struct usbh_audio_format_type {
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uint8_t channels;
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uint8_t format_type;
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uint8_t bitresolution;
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uint8_t sampfreq_num;
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uint32_t sampfreq[3];
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};
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/**
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* bSourceID in feature_unit = input_terminal_id
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* bSourceID in output_terminal = feature_unit_id
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* terminal_link_id = input_terminal_id or output_terminal_id (if input_terminal_type or output_terminal_type is 0x0101)
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*
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*
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*/
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struct usbh_audio_module {
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const char *name;
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uint8_t data_intf;
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uint8_t input_terminal_id;
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uint16_t input_terminal_type;
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uint16_t input_channel_config;
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uint8_t output_terminal_id;
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uint16_t output_terminal_type;
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uint8_t feature_unit_id;
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uint8_t feature_unit_controlsize;
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uint8_t feature_unit_controls[8];
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uint8_t terminal_link_id;
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struct usbh_audio_format_type altsetting[CONFIG_USBHOST_MAX_INTF_ALTSETTINGS];
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};
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struct usbh_audio {
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struct usbh_hubport *hport;
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struct usb_endpoint_descriptor *isoin; /* ISO IN endpoint */
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struct usb_endpoint_descriptor *isoout; /* ISO OUT endpoint */
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uint8_t ctrl_intf; /* interface number */
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uint8_t minor;
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uint16_t isoin_mps;
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uint16_t isoout_mps;
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bool is_opened;
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uint16_t bcdADC;
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uint8_t bInCollection;
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uint8_t num_of_intf_altsettings;
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struct usbh_audio_module module[2];
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uint8_t module_num;
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void *user_data;
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};
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#ifdef __cplusplus
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extern "C" {
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#endif
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int usbh_audio_open(struct usbh_audio *audio_class, const char *name, uint32_t samp_freq);
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int usbh_audio_close(struct usbh_audio *audio_class, const char *name);
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int usbh_audio_set_volume(struct usbh_audio *audio_class, const char *name, uint8_t ch, uint8_t volume);
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int usbh_audio_set_mute(struct usbh_audio *audio_class, const char *name, uint8_t ch, bool mute);
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void usbh_audio_run(struct usbh_audio *audio_class);
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void usbh_audio_stop(struct usbh_audio *audio_class);
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#ifdef __cplusplus
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}
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#endif
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#endif /* USBH_AUDIO_H */
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