89 lines
2.2 KiB
C
89 lines
2.2 KiB
C
/***************************************************************************
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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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*
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* Copyright (C) 2013 Andrew Ryabinin
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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 "system.h"
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#include "kernel.h"
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#include "audiohw.h"
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#include "df1704.h"
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#include "pca9555.h"
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#include "i2c-rk27xx.h"
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void df1704_set_ml_dir(const int dir)
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{
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pca9555_write_config(dir<<8, (1<<8));
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}
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void pcm1792_set_ml_dir (const int) __attribute__((alias("df1704_set_ml_dir")));
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void df1704_set_ml(const int val)
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{
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pca9555_write_output(val<<8, 1<<8);
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}
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void pcm1792_set_ml (const int) __attribute__((alias("df1704_set_ml")));
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void df1704_set_mc(const int val)
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{
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pca9555_write_output(val<<1, 1<<1);
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}
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void pcm1792_set_mc (const int) __attribute__((alias("df1704_set_mc")));
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void df1704_set_md(const int val)
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{
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pca9555_write_output(val<<0, 1<<0);
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}
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void pcm1792_set_md (const int) __attribute__((alias("df1704_set_md")));
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static void pop_ctrl(const int val)
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{
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pca9555_write_output(val<<5, 1<<5);
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}
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static void amp_enable(const int val)
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{
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pca9555_write_output(val<<3, 1<<3);
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}
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static void dac_enable(const int val)
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{
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pca9555_write_output(val<<4, 1<<4);
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}
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void audiohw_postinit(void)
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{
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pop_ctrl(0);
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sleep(HZ/4);
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dac_enable(1);
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amp_enable(1);
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sleep(HZ/100);
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audiohw_init();
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sleep(HZ/4);
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pop_ctrl(1);
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}
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void audiohw_close(void)
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{
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audiohw_mute();
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pop_ctrl(0);
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sleep(HZ/5);
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amp_enable(0);
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dac_enable(0);
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sleep(HZ/5);
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pop_ctrl(1);
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}
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