50 lines
1.7 KiB
C
50 lines
1.7 KiB
C
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/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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* Physical interface of the SI4700 in the Gigabeat S
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*
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* Copyright (C) 2008 by Nils Wallménius
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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
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "config.h"
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#include "system.h"
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#include "i2c-imx31.h"
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#include "fmradio_i2c.h"
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struct i2c_node si4700_i2c_node =
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{
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.num = I2C2_NUM,
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.ifdr = I2C_IFDR_DIV192, /* 66MHz/.4MHz = 165, closest = 192 = 343750Hz */
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/* Just hard-code for now - scaling may require
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* updating */
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.addr = (0x20),
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};
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int fmradio_i2c_write(unsigned char address, const unsigned char* buf, int count)
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{
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(void)address;
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i2c_write(&si4700_i2c_node, buf, count);
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return 0;
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}
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int fmradio_i2c_read(unsigned char address, unsigned char* buf, int count)
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{
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(void)address;
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i2c_read(&si4700_i2c_node, -1, buf, count);
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return 0;
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}
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