64 lines
1.7 KiB
C
64 lines
1.7 KiB
C
/*
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* Copyright (C) 2012 Samsung Electronics
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* R. Chandrasekar < rcsekar@samsung.com>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#ifndef __SOUND_H__
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#define __SOUND_H__
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/* sound codec enum */
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enum en_sound_codec {
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CODEC_WM_8994,
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CODEC_WM_8995,
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CODEC_MAX_98095,
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CODEC_MAX
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};
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/* sound codec enum */
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enum sound_compat {
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AUDIO_COMPAT_SPI,
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AUDIO_COMPAT_I2C,
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};
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/* Codec information structure to store the info from device tree */
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struct sound_codec_info {
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int i2c_bus;
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int i2c_dev_addr;
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enum en_sound_codec codec_type;
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};
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/*
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* Initialises audio sub system
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* @param blob Pointer of device tree node or NULL if none.
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* @return int value 0 for success, -1 for error
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*/
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int sound_init(const void *blob);
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/*
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* plays the pcm data buffer in pcm_data.h through i2s1 to make the
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* sine wave sound
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*
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* @return int 0 for success, -1 for error
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*/
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int sound_play(uint32_t msec, uint32_t frequency);
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#endif /* __SOUND__H__ */
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