sound.h 1.7 KB

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  1. /*
  2. * Copyright (C) 2012 Samsung Electronics
  3. * R. Chandrasekar < rcsekar@samsung.com>
  4. *
  5. * See file CREDITS for list of people who contributed to this
  6. * project.
  7. *
  8. * This program is free software; you can redistribute it and/or
  9. * modify it under the terms of the GNU General Public License as
  10. * published by the Free Software Foundation; either version 2 of
  11. * the License, or (at your option) any later version.
  12. *
  13. * This program is distributed in the hope that it will be useful,
  14. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  16. * GNU General Public License for more details.
  17. *
  18. * You should have received a copy of the GNU General Public License
  19. * along with this program; if not, write to the Free Software
  20. * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21. * MA 02111-1307 USA
  22. */
  23. #ifndef __SOUND_H__
  24. #define __SOUND_H__
  25. /* sound codec enum */
  26. enum en_sound_codec {
  27. CODEC_WM_8994,
  28. CODEC_WM_8995,
  29. CODEC_MAX_98095,
  30. CODEC_MAX
  31. };
  32. /* sound codec enum */
  33. enum sound_compat {
  34. AUDIO_COMPAT_SPI,
  35. AUDIO_COMPAT_I2C,
  36. };
  37. /* Codec information structure to store the info from device tree */
  38. struct sound_codec_info {
  39. int i2c_bus;
  40. int i2c_dev_addr;
  41. enum en_sound_codec codec_type;
  42. };
  43. /*
  44. * Initialises audio sub system
  45. * @param blob Pointer of device tree node or NULL if none.
  46. * @return int value 0 for success, -1 for error
  47. */
  48. int sound_init(const void *blob);
  49. /*
  50. * plays the pcm data buffer in pcm_data.h through i2s1 to make the
  51. * sine wave sound
  52. *
  53. * @return int 0 for success, -1 for error
  54. */
  55. int sound_play(uint32_t msec, uint32_t frequency);
  56. #endif /* __SOUND__H__ */