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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id: uda1380.c 21975 2009-07-19 22:45:32Z bertrik $
*
* Copyright (C) 2009 by Bob Cousins
*
* 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 <string.h>
#include "config.h"
#include "logf.h"
#include "system.h"
#include "audio.h"
#include "debug.h"
#include "audiohw.h"
const struct sound_settings_info audiohw_settings[] = {
[SOUND_VOLUME] = {"dB", 0, 1, -84, 0, -25},
[SOUND_BASS] = {"dB", 0, 2, 0, 24, 0},
[SOUND_TREBLE] = {"dB", 0, 2, 0, 6, 0},
[SOUND_BALANCE] = {"%", 0, 1,-100, 100, 0}, /* not used */
[SOUND_CHANNELS] = {"", 0, 1, 0, 5, 0}, /* not used */
[SOUND_STEREO_WIDTH] = {"%", 0, 5, 0, 250, 100}, /* not used */
#ifdef HAVE_RECORDING
[SOUND_LEFT_GAIN] = {"dB", 1, 1,-128, 96, 0},
[SOUND_RIGHT_GAIN] = {"dB", 1, 1,-128, 96, 0},
[SOUND_MIC_GAIN] = {"dB", 1, 1,-128, 108, 16},
#endif
};
/* convert tenth of dB volume (-600..0) to master volume register value */
int tenthdb2master(int db)
{
if (db < -600)
return 63;
else /* 1 dB steps */
return -(db / 10) + 1;
}
static unsigned short uda_regs[NUM_REG_ID];
/****************************************************************************/
/* ------------------------------------------------- */
/* Local functions and variables */
/* ------------------------------------------------- */
/* Generic L3 functions */
#define L3PORT GPBDAT
#define L3MODE (1 << 2)
#define L3DATA (1 << 3)
#define L3CLOCK (1 << 4)
static void l3_init (void)
{
L3PORT |= L3MODE | L3CLOCK;
L3PORT &= ~L3DATA;
S3C2440_GPIO_CONFIG (GPBCON, 2, GPIO_OUTPUT); /* L3 MODE */
S3C2440_GPIO_CONFIG (GPBCON, 3, GPIO_OUTPUT); /* L3 DATA */
S3C2440_GPIO_CONFIG (GPBCON, 4, GPIO_OUTPUT); /* L3 CLOCK */
S3C2440_GPIO_PULLUP (GPBUP, 2, GPIO_PULLUP_DISABLE);
S3C2440_GPIO_PULLUP (GPBUP, 3, GPIO_PULLUP_DISABLE);
S3C2440_GPIO_PULLUP (GPBUP, 4, GPIO_PULLUP_DISABLE);
}
static void bit_delay (void)
{
volatile int j;
for (j=0; j<5; j++)
;
}
static void l3_write_byte (unsigned char data, bool address_mode)
{
int bit;
L3PORT |= L3CLOCK;
if (address_mode)
L3PORT &= ~L3MODE;
else
L3PORT |= L3MODE;
bit_delay();
for (bit=0; bit < 8; bit++)
{
if (data & 1)
{
L3PORT |= L3DATA;
}
else
{
L3PORT &= ~L3DATA;
}
L3PORT &= ~L3CLOCK;
bit_delay();
L3PORT |= L3CLOCK;
bit_delay();
data >>= 1;
}
if (address_mode)
L3PORT |= L3MODE;
else
L3PORT &= ~L3MODE;
bit_delay();
}
static void l3_write_addr (unsigned char addr)
{
/* write address byte */
l3_write_byte (addr, true);
}
static void l3_write_data (unsigned char data)
{
/* write data byte */
l3_write_byte (data, false);
}
/****************************************************************************/
/* UDA1341 access functions */
static int udacodec_write(unsigned char reg, unsigned short value)
{
l3_write_addr (UDA1341_ADDR | reg);
l3_write_data (value & 0xff);
return 0;
}
static void udacodec_reset(void)
{
/* uda reset */
l3_init();
udacodec_write (UDA_REG_STATUS, UDA_STATUS_0 | UDA_RESET | UDA_SYSCLK_256FS |
I2S_IFMT_IIS);
udacodec_write (UDA_REG_STATUS, UDA_STATUS_0 | UDA_SYSCLK_256FS | I2S_IFMT_IIS);
udacodec_write (UDA_REG_STATUS, UDA_STATUS_1 | UDA_POWER_DAC_ON);
uda_regs[UDA_REG_ID_CTRL2] = UDA_PEAK_DETECT_POS_AFTER |
UDA_DE_EMPHASIS_NONE | UDA_MUTE_OFF | UDA_MODE_SWITCH_FLAT;
}
/****************************************************************************/
/* Audio API functions */
/* This table must match the table in pcm-xxxx.c if using Master mode */
/* [reserved, master clock rate] */
static const unsigned char uda_freq_parms[HW_NUM_FREQ][2] =
{
[HW_FREQ_44] = { 0, UDA_SYSCLK_384FS },
[HW_FREQ_22] = { 0, UDA_SYSCLK_256FS },
[HW_FREQ_11] = { 0, UDA_SYSCLK_256FS },
};
void audiohw_init(void)
{
udacodec_reset();
audiohw_set_bass (0);
audiohw_set_treble (0);
audiohw_set_master_vol (26, 26); /* -25 dB */
}
void audiohw_postinit(void)
{
}
void audiohw_close(void)
{
/* DAC, ADC off */
udacodec_write (UDA_REG_STATUS, UDA_STATUS_1 | 0);
}
void audiohw_set_bass(int value)
{
uda_regs [UDA_REG_ID_CTRL1] &= UDA_BASS_BOOST (UDA_BASS_BOOST_MASK);
uda_regs [UDA_REG_ID_CTRL1] |= UDA_BASS_BOOST (value & UDA_BASS_BOOST_MASK);
udacodec_write (UDA_REG_DATA0, UDA_DATA_CTRL1 | uda_regs [UDA_REG_ID_CTRL1] );
}
void audiohw_set_treble(int value)
{
uda_regs [UDA_REG_ID_CTRL1] &= UDA_TREBLE (UDA_TREBLE_MASK);
uda_regs [UDA_REG_ID_CTRL1] |= UDA_TREBLE (value & UDA_TREBLE_MASK);
udacodec_write (UDA_REG_DATA0, UDA_DATA_CTRL1 | uda_regs [UDA_REG_ID_CTRL1] );
}
/*static void audiohw_mute(bool mute)
{
if (mute)
uda_regs [UDA_REG_ID_CTRL2] |= UDA_MUTE_ON;
else
uda_regs [UDA_REG_ID_CTRL2] &= ~UDA_MUTE_ON;
udacodec_write (UDA_REG_DATA0, UDA_DATA_CTRL2 | uda_regs [UDA_REG_ID_CTRL2] );
}
*/
#ifdef AUDIOHW_HAVE_PRESCALER
void audiohw_set_prescaler(int val)
{
(void)val;
}
#endif /* AUDIOHW_HAVE_PRESCALER */
/**
* Sets left and right master volume (1(max) to 62(muted))
*/
void audiohw_set_master_vol(int vol_l, int vol_r)
{
uda_regs[UDA_REG_ID_CTRL0] = (vol_l + vol_r) / 2;
udacodec_write (UDA_REG_DATA0, UDA_DATA_CTRL0 | uda_regs[UDA_REG_ID_CTRL0]);
}
void audiohw_set_frequency(int fsel)
{
if ((unsigned)fsel >= HW_NUM_FREQ)
fsel = HW_FREQ_DEFAULT;
uda_regs[UDA_REG_ID_STATUS_0] = I2S_IFMT_IIS | uda_freq_parms[fsel][1];
udacodec_write (UDA_REG_STATUS, UDA_STATUS_0 | uda_regs[UDA_REG_ID_STATUS_0]);
}
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