blob: deaced2682e03571dccabd015f80a98d978b5d67 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
|
/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* TCC specific code for Wolfson audio codecs
*
* Based on code from the ipodlinux project - http://ipodlinux.org/
* Adapted for Rockbox in December 2005
*
* Original file: linux/arch/armnommu/mach-ipod/audio.c
*
* Copyright (c) 2003-2005 Bernard Leach (leachbj@bouncycastle.org)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "system.h"
#include "audiohw.h"
#include "i2c.h"
#include "wmcodec.h"
#if defined(COWON_D2)
/* The D2's audio codec uses an I2C address of 0x34 */
#define I2C_AUDIO_ADDRESS 0x34
#else
#error wmcodec not implemented for this target!
#endif
void audiohw_init(void)
{
#if defined(HAVE_WM8731) || defined(HAVE_WM8751) || defined(HAVE_WM8985)
audiohw_preinit();
#endif
}
void wmcodec_write(int reg, int data)
{
unsigned char d[2];
d[0] = (reg << 1) | ((data & 0x100) >> 8);
d[1] = data;
i2c_write(I2C_AUDIO_ADDRESS, d, 2);
}
|
