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sound
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usb
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endpoint.h

endpoint.h 1.2 KB
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  1. #ifndef __USBAUDIO_ENDPOINT_H
    2. 

  2. #define __USBAUDIO_ENDPOINT_H
    3. 

  3. 

  4. #define SND_USB_ENDPOINT_TYPE_DATA     0
    5. 

  5. #define SND_USB_ENDPOINT_TYPE_SYNC     1
    6. 

  6. 

  7. struct snd_usb_endpoint *snd_usb_add_endpoint(struct snd_usb_audio *chip,
    8. 

  8. 					      struct usb_host_interface *alts,
    9. 

  9. 					      int ep_num, int direction, int type);
    10. 

  10. 

  11. int snd_usb_endpoint_set_params(struct snd_usb_endpoint *ep,
    12. 

  12. 				snd_pcm_format_t pcm_format,
    13. 

  13. 				unsigned int channels,
    14. 

  14. 				unsigned int period_bytes,
    15. 

  15. 				unsigned int rate,
    16. 

  16. 				struct audioformat *fmt,
    17. 

  17. 				struct snd_usb_endpoint *sync_ep);
    18. 

  18. 

  19. int  snd_usb_endpoint_start(struct snd_usb_endpoint *ep, bool can_sleep);
    20. 

  20. void snd_usb_endpoint_stop(struct snd_usb_endpoint *ep);
    21. 

  21. void snd_usb_endpoint_sync_pending_stop(struct snd_usb_endpoint *ep);
    22. 

  22. int  snd_usb_endpoint_activate(struct snd_usb_endpoint *ep);
    23. 

  23. int  snd_usb_endpoint_deactivate(struct snd_usb_endpoint *ep);
    24. 

  24. void snd_usb_endpoint_free(struct list_head *head);
    25. 

  25. 

  26. int snd_usb_endpoint_implict_feedback_sink(struct snd_usb_endpoint *ep);
    27. 

  27. int snd_usb_endpoint_next_packet_size(struct snd_usb_endpoint *ep);
    28. 

  28. 

  29. void snd_usb_handle_sync_urb(struct snd_usb_endpoint *ep,
    30. 

  30. 			     struct snd_usb_endpoint *sender,
    31. 

  31. 			     const struct urb *urb);
    32. 

  32. 

  33. #endif /* __USBAUDIO_ENDPOINT_H */
    34.