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oasis-root

Compiled tree of Oasis Linux based on own branch at <https://hacktivis.me/git/oasis/> git clone https://anongit.hacktivis.me/git/oasis-root.git

usb_stream.h (1238B)

    

  1. /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
  2. /*
  3.  * Copyright (C) 2007, 2008 Karsten Wiese <fzu@wemgehoertderstaat.de>
  4.  */
  6. #ifndef __SOUND_USB_STREAM_H
  7. #define __SOUND_USB_STREAM_H
  9. #define USB_STREAM_INTERFACE_VERSION 2
  11. #define SNDRV_USB_STREAM_IOCTL_SET_PARAMS \
  12. 	_IOW('H', 0x90, struct usb_stream_config)
  14. struct usb_stream_packet {
  15. 	unsigned offset;
  16. 	unsigned length;
  17. };
  20. struct usb_stream_config {
  21. 	unsigned version;
  22. 	unsigned sample_rate;
  23. 	unsigned period_frames;
  24. 	unsigned frame_size;
  25. };
  27. struct usb_stream {
  28. 	struct usb_stream_config cfg;
  29. 	unsigned read_size;
  30. 	unsigned write_size;
  32. 	int period_size;
  34. 	unsigned state;
  36. 	int idle_insize;
  37. 	int idle_outsize;
  38. 	int sync_packet;
  39. 	unsigned insize_done;
  40. 	unsigned periods_done;
  41. 	unsigned periods_polled;
  43. 	struct usb_stream_packet outpacket[2];
  44. 	unsigned		 inpackets;
  45. 	unsigned		 inpacket_head;
  46. 	unsigned		 inpacket_split;
  47. 	unsigned		 inpacket_split_at;
  48. 	unsigned		 next_inpacket_split;
  49. 	unsigned		 next_inpacket_split_at;
  50. 	struct usb_stream_packet inpacket[];
  51. };
  53. enum usb_stream_state {
  54. 	usb_stream_invalid,
  55. 	usb_stream_stopped,
  56. 	usb_stream_sync0,
  57. 	usb_stream_sync1,
  58. 	usb_stream_ready,
  59. 	usb_stream_running,
  60. 	usb_stream_xrun,
  61. };
  63. #endif /* __SOUND_USB_STREAM_H */