68 lines
1.7 KiB
C
68 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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*
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* Copyright (C) 2016 by Roman Stolyarov
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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 "i2c-rk27xx.h"
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#define ES9018_I2C_ADDR 0x90
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static unsigned char buf;
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void es9018_write_reg(uint8_t reg, uint8_t val)
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{
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buf = val;
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i2c_write(ES9018_I2C_ADDR, reg, sizeof(buf), (void*)&buf);
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}
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uint8_t es9018_read_reg(uint8_t reg)
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{
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i2c_read(ES9018_I2C_ADDR, reg, sizeof(buf), (void*)&buf);
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return buf;
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}
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static void pop_ctrl(const int val)
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{
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if (val)
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GPIO_PADR |= (1<<7);
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else
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GPIO_PADR &= ~(1<<7);
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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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audiohw_init();
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sleep(HZ/2);
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pop_ctrl(1);
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sleep(HZ/4);
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audiohw_unmute();
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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/4);
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}
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