| /*************************************************************************** |
| * __________ __ ___. |
| * Open \______ \ ____ ____ | | _\_ |__ _______ ___ |
| * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / |
| * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < |
| * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ |
| * \/ \/ \/ \/ \/ |
| * $Id:$ |
| * |
| * Coldfire specific code for Wolfson audio codecs based on |
| * wmcodec-pp.c |
| * |
| * 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-coldfire.h" |
| #include "i2s.h" |
| #include "wmcodec.h" |
| |
| #if defined(MPIO_HD200) || defined(MPIO_HD300) |
| #define I2C_CODEC_ADDRESS 0x34 |
| #define I2C_IFACE I2C_IFACE_1 |
| #endif |
| |
| void audiohw_init(void) |
| { |
| audiohw_preinit(); |
| } |
| |
| void wmcodec_write(int reg, int data) |
| { |
| unsigned char wmdata[2]; |
| wmdata[0] = (reg << 1) | ((data & 0x100)>>8); |
| wmdata[1] = data & 0xff; |
| i2c_write(I2C_IFACE,I2C_CODEC_ADDRESS,wmdata,2); |
| return; |
| } |