305 lines
8.9 KiB
C
305 lines
8.9 KiB
C
/***************************************************************************
|
|
* __________ __ ___.
|
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
|
* \/ \/ \/ \/ \/
|
|
* $Id$
|
|
*
|
|
* Driver for WM8711/WM8721/WM8731 audio codecs
|
|
*
|
|
* Based on code from the ipodlinux project - http://ipodlinux.org/
|
|
* Adapted for Rockbox in January 2006
|
|
*
|
|
* 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 "config.h"
|
|
#include "logf.h"
|
|
#include "system.h"
|
|
#include "kernel.h"
|
|
#include "string.h"
|
|
|
|
#include "pcm_sampr.h"
|
|
|
|
#include "audio.h"
|
|
|
|
#include "wmcodec.h"
|
|
#include "sound.h"
|
|
|
|
/* Init values/shadows
|
|
* Ignore bit 8 since that only specifies "both" for updating
|
|
* gains - "RESET" (15h) not included */
|
|
static unsigned char wmc_regs[WMC_NUM_REGS] =
|
|
{
|
|
#ifdef HAVE_WM8731
|
|
[LINVOL] = LINVOL_DEFAULT,
|
|
[RINVOL] = RINVOL_DEFAULT,
|
|
#endif
|
|
[LOUTVOL] = LOUTVOL_DEFAULT | WMC_OUT_ZCEN,
|
|
[ROUTVOL] = LOUTVOL_DEFAULT | WMC_OUT_ZCEN,
|
|
#if defined(HAVE_WM8711) || defined(HAVE_WM8731)
|
|
/* BYPASS on by default - OFF until needed */
|
|
[AAPCTRL] = AAPCTRL_DEFAULT & ~AAPCTRL_BYPASS,
|
|
/* CLKOUT and OSC on by default - OFF unless needed by a target */
|
|
[PDCTRL] = PDCTRL_DEFAULT | PDCTRL_CLKOUTPD | PDCTRL_OSCPD,
|
|
#elif defined(HAVE_WM8721)
|
|
/* No BYPASS */
|
|
[AAPCTRL] = AAPCTRL_DEFAULT,
|
|
/* No CLKOUT or OSC */
|
|
[PDCTRL] = PDCTRL_DEFAULT,
|
|
#endif
|
|
[DAPCTRL] = DAPCTRL_DEFAULT,
|
|
#ifndef CODEC_SLAVE
|
|
[AINTFCE] = AINTFCE_FORMAT_I2S | AINTFCE_IWL_16BIT | AINTFCE_MS,
|
|
#else
|
|
[AINTFCE] = AINTFCE_FORMAT_I2S | AINTFCE_IWL_16BIT,
|
|
#endif
|
|
[SAMPCTRL] = SAMPCTRL_DEFAULT,
|
|
[ACTIVECTRL] = ACTIVECTRL_DEFAULT,
|
|
};
|
|
|
|
static void wmc_write(int reg, unsigned val)
|
|
{
|
|
if ((unsigned)reg >= WMC_NUM_REGS)
|
|
return;
|
|
|
|
wmc_regs[reg] = (unsigned char)val;
|
|
wmcodec_write(reg, val);
|
|
}
|
|
|
|
static void wmc_set(int reg, unsigned bits)
|
|
{
|
|
wmc_write(reg, wmc_regs[reg] | bits);
|
|
}
|
|
|
|
static void wmc_clear(int reg, unsigned bits)
|
|
{
|
|
wmc_write(reg, wmc_regs[reg] & ~bits);
|
|
}
|
|
|
|
static void wmc_write_masked(int reg, unsigned bits, unsigned mask)
|
|
{
|
|
wmc_write(reg, (wmc_regs[reg] & ~mask) | (bits & mask));
|
|
}
|
|
|
|
/* convert tenth of dB volume (-730..60) to master volume register value */
|
|
static int vol_tenthdb2hw(int db)
|
|
{
|
|
/* +6 to -73dB 1dB steps (plus mute == 80levels) 7bits */
|
|
/* 1111111 == +6dB (0x7f) */
|
|
/* 1111001 == 0dB (0x79) */
|
|
/* 0110000 == -73dB (0x30) */
|
|
/* 0101111 == mute (0x2f) */
|
|
if (db <= -740) {
|
|
return 0x2f;
|
|
} else {
|
|
return((db/10)+0x30+73);
|
|
}
|
|
}
|
|
|
|
static void audiohw_mute(bool mute)
|
|
{
|
|
if (mute) {
|
|
/* Set DACMU = 1 to soft-mute the audio DACs. */
|
|
wmc_set(DAPCTRL, DAPCTRL_DACMU);
|
|
} else {
|
|
/* Set DACMU = 0 to soft-un-mute the audio DACs. */
|
|
wmc_clear(DAPCTRL, DAPCTRL_DACMU);
|
|
}
|
|
}
|
|
|
|
static void codec_set_active(int active)
|
|
{
|
|
/* set active to 0x0 or 0x1 */
|
|
wmc_write(ACTIVECTRL, active ? ACTIVECTRL_ACTIVE : 0);
|
|
}
|
|
|
|
void audiohw_preinit(void)
|
|
{
|
|
/* POWER UP SEQUENCE */
|
|
/* 1) Switch on power supplies. By default the WM codec is in Standby Mode,
|
|
* the DAC is digitally muted and the Audio Interface and Outputs are
|
|
* all OFF. */
|
|
wmcodec_write(RESET, RESET_RESET);
|
|
|
|
/* 2) Set all required bits in the Power Down register (0Ch) to '0';
|
|
* EXCEPT the OUTPD bit, this should be set to '1' (Default). */
|
|
wmc_clear(PDCTRL, PDCTRL_DACPD | PDCTRL_POWEROFF);
|
|
|
|
/* 3) Set required values in all other registers except 12h (Active). */
|
|
wmc_set(AINTFCE, 0); /* Set no bits - write init/shadow value */
|
|
|
|
wmc_set(AAPCTRL, AAPCTRL_DACSEL);
|
|
wmc_write(SAMPCTRL, WMC_USB24_44100HZ);
|
|
|
|
/* 4) Set the 'Active' bit in register 12h. */
|
|
codec_set_active(true);
|
|
|
|
/* 5) The last write of the sequence should be setting OUTPD to '0'
|
|
* (active) in register 0Ch, enabling the DAC signal path, free
|
|
* of any significant power-up noise. */
|
|
wmc_clear(PDCTRL, PDCTRL_OUTPD);
|
|
}
|
|
|
|
void audiohw_postinit(void)
|
|
{
|
|
sleep(HZ);
|
|
|
|
audiohw_mute(false);
|
|
|
|
#if defined(IRIVER_H10) || defined(IRIVER_H10_5GB)
|
|
/* We need to enable bit 4 of GPIOL for output for sound on H10 */
|
|
GPIO_SET_BITWISE(GPIOL_OUTPUT_VAL, 0x10);
|
|
#elif defined(PHILIPS_HDD1630) || defined(PHILIPS_HDD6330)
|
|
GPO32_ENABLE |= 0x2;
|
|
GPO32_VAL &= ~0x2;
|
|
#endif
|
|
}
|
|
|
|
void audiohw_set_volume(int vol_l, int vol_r)
|
|
{
|
|
/* +6 to -73dB 1dB steps (plus mute == 80levels) 7bits */
|
|
vol_l = vol_tenthdb2hw(vol_l);
|
|
vol_r = vol_tenthdb2hw(vol_r);
|
|
wmc_write_masked(LOUTVOL, vol_l, WMC_OUT_VOL_MASK);
|
|
wmc_write_masked(ROUTVOL, vol_r, WMC_OUT_VOL_MASK);
|
|
}
|
|
|
|
/* Nice shutdown of WM codec */
|
|
void audiohw_close(void)
|
|
{
|
|
/* POWER DOWN SEQUENCE */
|
|
/* 1) Set the OUTPD bit to '1' (power down). */
|
|
wmc_set(PDCTRL, PDCTRL_OUTPD);
|
|
/* 2) Remove the WM codec supplies. */
|
|
}
|
|
|
|
void audiohw_set_frequency(int fsel)
|
|
{
|
|
/* For 24MHz MCLK */
|
|
static const unsigned char srctrl_table[HW_NUM_FREQ] =
|
|
{
|
|
HW_HAVE_8_([HW_FREQ_8] = WMC_USB24_8000HZ,)
|
|
HW_HAVE_32_([HW_FREQ_32] = WMC_USB24_32000HZ,)
|
|
HW_HAVE_44_([HW_FREQ_44] = WMC_USB24_44100HZ,)
|
|
HW_HAVE_48_([HW_FREQ_48] = WMC_USB24_48000HZ,)
|
|
HW_HAVE_88_([HW_FREQ_88] = WMC_USB24_88200HZ,)
|
|
HW_HAVE_96_([HW_FREQ_96] = WMC_USB24_96000HZ,)
|
|
};
|
|
|
|
if ((unsigned)fsel >= HW_NUM_FREQ)
|
|
fsel = HW_FREQ_DEFAULT;
|
|
|
|
codec_set_active(false);
|
|
wmc_write(SAMPCTRL, srctrl_table[fsel]);
|
|
codec_set_active(true);
|
|
}
|
|
|
|
#if defined(HAVE_WM8731) && defined(HAVE_RECORDING)
|
|
/* WM8731 only */
|
|
void audiohw_enable_recording(bool source_mic)
|
|
{
|
|
/* NOTE: When switching to digital monitoring we will not want
|
|
* the DAC disabled. */
|
|
|
|
codec_set_active(false);
|
|
|
|
if (source_mic) {
|
|
wmc_set(LINVOL, WMC_IN_MUTE);
|
|
wmc_set(RINVOL, WMC_IN_MUTE);
|
|
|
|
wmc_write_masked(PDCTRL, PDCTRL_LINEINPD | PDCTRL_DACPD,
|
|
PDCTRL_LINEINPD | PDCTRL_MICPD |
|
|
PDCTRL_ADCPD | PDCTRL_DACPD);
|
|
wmc_write_masked(AAPCTRL, AAPCTRL_INSEL | AAPCTRL_SIDETONE,
|
|
AAPCTRL_MUTEMIC | AAPCTRL_INSEL |
|
|
AAPCTRL_BYPASS | AAPCTRL_DACSEL |
|
|
AAPCTRL_SIDETONE);
|
|
} else {
|
|
wmc_write_masked(PDCTRL, PDCTRL_MICPD | PDCTRL_DACPD,
|
|
PDCTRL_LINEINPD | PDCTRL_MICPD |
|
|
PDCTRL_ADCPD | PDCTRL_DACPD);
|
|
wmc_write_masked(AAPCTRL, AAPCTRL_MUTEMIC | AAPCTRL_BYPASS,
|
|
AAPCTRL_MUTEMIC | AAPCTRL_INSEL |
|
|
AAPCTRL_BYPASS | AAPCTRL_DACSEL |
|
|
AAPCTRL_SIDETONE);
|
|
|
|
wmc_clear(LINVOL, WMC_IN_MUTE);
|
|
wmc_clear(RINVOL, WMC_IN_MUTE);
|
|
}
|
|
|
|
codec_set_active(true);
|
|
}
|
|
|
|
void audiohw_disable_recording(void)
|
|
{
|
|
codec_set_active(false);
|
|
|
|
/* Mute line inputs */
|
|
wmc_set(LINVOL, WMC_IN_MUTE);
|
|
wmc_set(RINVOL, WMC_IN_MUTE);
|
|
wmc_set(AAPCTRL, AAPCTRL_MUTEMIC);
|
|
|
|
/* Turn off input analog audio paths */
|
|
wmc_clear(AAPCTRL, AAPCTRL_BYPASS | AAPCTRL_SIDETONE);
|
|
|
|
/* Set power config */
|
|
wmc_write_masked(PDCTRL,
|
|
PDCTRL_LINEINPD | PDCTRL_MICPD | PDCTRL_ADCPD,
|
|
PDCTRL_LINEINPD | PDCTRL_MICPD | PDCTRL_DACPD |
|
|
PDCTRL_ADCPD);
|
|
|
|
/* Select DAC */
|
|
wmc_set(AAPCTRL, AAPCTRL_DACSEL);
|
|
|
|
codec_set_active(true);
|
|
}
|
|
|
|
/* Line in: 0 .. 31 => Volume -34.5 .. +12 dB
|
|
* Microphone: 0 or 20 dB */
|
|
void audiohw_set_recvol(int left, int right, int type)
|
|
{
|
|
switch (type)
|
|
{
|
|
case AUDIO_GAIN_MIC:
|
|
if (left > 0) {
|
|
wmc_set(AAPCTRL, AAPCTRL_MIC_BOOST);
|
|
}
|
|
else {
|
|
wmc_clear(AAPCTRL, AAPCTRL_MIC_BOOST);
|
|
}
|
|
break;
|
|
case AUDIO_GAIN_LINEIN:
|
|
wmc_write_masked(LINVOL, left, WMC_IN_VOL_MASK);
|
|
wmc_write_masked(RINVOL, right, WMC_IN_VOL_MASK);
|
|
break;
|
|
default:
|
|
return;
|
|
}
|
|
}
|
|
|
|
void audiohw_set_monitor(bool enable)
|
|
{
|
|
if(enable) {
|
|
wmc_clear(PDCTRL, PDCTRL_LINEINPD);
|
|
wmc_set(AAPCTRL, AAPCTRL_BYPASS);
|
|
}
|
|
else {
|
|
wmc_clear(AAPCTRL, AAPCTRL_BYPASS);
|
|
wmc_set(PDCTRL, PDCTRL_LINEINPD);
|
|
}
|
|
}
|
|
#endif /* HAVE_WM8731 && HAVE_RECORDING */
|