blob: d73839d9f04a08b7891f5bac48b4289c712bebdf [file] [log] [blame]
Rajeshwari Shinde511ed5f2012-10-25 19:49:22 +00001/*
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
24#ifndef __SOUND_H__
25#define __SOUND_H__
26
27/* sound codec enum */
28enum en_sound_codec {
29 CODEC_WM_8994,
30 CODEC_WM_8995,
31 CODEC_MAX
32};
33
34/* sound codec enum */
35enum sound_compat {
36 AUDIO_COMPAT_SPI,
37 AUDIO_COMPAT_I2C,
38};
39
40/* Codec information structure to store the info from device tree */
41struct sound_codec_info {
42 int i2c_bus;
43 int i2c_dev_addr;
44 enum en_sound_codec codec_type;
45};
46
47/*
48 * Initialises audio sub system
Rajeshwari Shindef4823102012-12-26 20:03:17 +000049 * @param blob Pointer of device tree node or NULL if none.
Rajeshwari Shinde511ed5f2012-10-25 19:49:22 +000050 * @return int value 0 for success, -1 for error
51 */
Rajeshwari Shindef4823102012-12-26 20:03:17 +000052int sound_init(const void *blob);
Rajeshwari Shinde511ed5f2012-10-25 19:49:22 +000053
54/*
55 * plays the pcm data buffer in pcm_data.h through i2s1 to make the
56 * sine wave sound
57 *
58 * @return int 0 for success, -1 for error
59 */
60int sound_play(uint32_t msec, uint32_t frequency);
61
62#endif /* __SOUND__H__ */