| * Copyright (C) 2012 Samsung Electronics |
| * R. Chandrasekar < rcsekar@samsung.com> |
| * SPDX-License-Identifier: GPL-2.0+ |
| /* Codec information structure to store the info from device tree */ |
| struct sound_codec_info { |
| enum en_sound_codec codec_type; |
| * Generates square wave sound data for 1 second |
| * @param data data buffer pointer |
| * @param size size of the buffer |
| * @param freq frequency of the wave |
| void sound_create_square_wave(unsigned short *data, int size, uint32_t freq); |
| * Initialises audio sub system |
| * @param blob Pointer of device tree node or NULL if none. |
| * @return int value 0 for success, -1 for error |
| int sound_init(const void *blob); |
| * plays the pcm data buffer in pcm_data.h through i2s1 to make the |
| * @return int 0 for success, -1 for error |
| int sound_play(uint32_t msec, uint32_t frequency); |
| #endif /* __SOUND__H__ */ |