jack1 codebase
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  1. /*
  2. Copyright (C) 2001 Paul Davis
  3. Copyright (C) 2004 Karsten Wiese, Rui Nuno Capela
  4. This program is free software; you can redistribute it and/or modify
  5. it under the terms of the GNU General Public License as published by
  6. the Free Software Foundation; either version 2 of the License, or
  7. (at your option) any later version.
  8. This program is distributed in the hope that it will be useful,
  9. but WITHOUT ANY WARRANTY; without even the implied warranty of
  10. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  11. GNU General Public License for more details.
  12. You should have received a copy of the GNU General Public License
  13. along with this program; if not, write to the Free Software
  14. Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  15. */
  16. #ifndef __jack_usx2y_h__
  17. #define __jack_usx2y_h__
  18. #define USX2Y_MAXPACK 50
  19. #define USX2Y_MAXBUFFERMS 100
  20. #define USX2Y_MAXSTRIDE 3
  21. #define USX2Y_SSS (((USX2Y_MAXPACK * USX2Y_MAXBUFFERMS * USX2Y_MAXSTRIDE + 4096) / 4096) * 4096)
  22. struct snd_usX2Y_hwdep_pcm_shm {
  23. char playback[USX2Y_SSS];
  24. char capture0x8[USX2Y_SSS];
  25. char capture0xA[USX2Y_SSS];
  26. volatile int playback_iso_head;
  27. int playback_iso_start;
  28. struct {
  29. int frame,
  30. offset,
  31. length;
  32. } captured_iso[128];
  33. volatile int captured_iso_head;
  34. volatile unsigned captured_iso_frames;
  35. int capture_iso_start;
  36. };
  37. typedef struct snd_usX2Y_hwdep_pcm_shm snd_usX2Y_hwdep_pcm_shm_t;
  38. typedef struct {
  39. alsa_driver_t *driver;
  40. snd_hwdep_t *hwdep_handle;
  41. struct pollfd pfds;
  42. struct snd_usX2Y_hwdep_pcm_shm *hwdep_pcm_shm;
  43. int playback_iso_start;
  44. int playback_iso_bytes_done;
  45. int capture_iso_start;
  46. int capture_iso_bytes_done;
  47. } usx2y_t;
  48. jack_hardware_t *
  49. jack_alsa_usx2y_hw_new (alsa_driver_t *driver);
  50. #endif /* __jack_usx2y_h__*/