audio_comp.h 2.8 KB

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283
  1. /****************************************************************************
  2. * include/nuttx/audio/audio_comp.h
  3. *
  4. * Licensed to the Apache Software Foundation (ASF) under one or more
  5. * contributor license agreements. See the NOTICE file distributed with
  6. * this work for additional information regarding copyright ownership. The
  7. * ASF licenses this file to you under the Apache License, Version 2.0 (the
  8. * "License"); you may not use this file except in compliance with the
  9. * License. You may obtain a copy of the License at
  10. *
  11. * http://www.apache.org/licenses/LICENSE-2.0
  12. *
  13. * Unless required by applicable law or agreed to in writing, software
  14. * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  15. * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
  16. * License for the specific language governing permissions and limitations
  17. * under the License.
  18. *
  19. ****************************************************************************/
  20. #ifndef __INCLUDE_NUTTX_AUDIO_AUDIO_COMP_H
  21. #define __INCLUDE_NUTTX_AUDIO_AUDIO_COMP_H
  22. /****************************************************************************
  23. * Included Files
  24. ****************************************************************************/
  25. #include <nuttx/config.h>
  26. #ifdef CONFIG_AUDIO_COMP
  27. #include <nuttx/audio/audio.h>
  28. /****************************************************************************
  29. * Pre-processor Definitions
  30. ****************************************************************************/
  31. /****************************************************************************
  32. * Public Types
  33. ****************************************************************************/
  34. /****************************************************************************
  35. * Public Data
  36. ****************************************************************************/
  37. #ifdef __cplusplus
  38. #define EXTERN extern "C"
  39. extern "C"
  40. {
  41. #else
  42. #define EXTERN extern
  43. #endif
  44. /****************************************************************************
  45. * Public Function Prototypes
  46. ****************************************************************************/
  47. /****************************************************************************
  48. * Name: audio_comp_initialize
  49. *
  50. * Description:
  51. * Initialize the composite audio device.
  52. *
  53. * Input Parameters:
  54. * name - The name of the audio device.
  55. * ... - The list of the lower half audio driver.
  56. *
  57. * Returned Value:
  58. * Zero on success; a negated errno value on failure.
  59. *
  60. * Note
  61. * The variable argument list must be NULL terminated.
  62. *
  63. ****************************************************************************/
  64. int audio_comp_initialize(FAR const char *name, ...);
  65. #undef EXTERN
  66. #ifdef __cplusplus
  67. }
  68. #endif
  69. #endif /* CONFIG_AUDIO_COMP */
  70. #endif /* __INCLUDE_NUTTX_AUDIO_AUDIO_COMP_H */