d7e1f77146
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15782 a1c6a512-1295-4272-9138-f99709370657
292 lines
7.6 KiB
C
292 lines
7.6 KiB
C
/***************************************************************************
|
|
* __________ __ ___.
|
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
|
* \/ \/ \/ \/ \/
|
|
* $Id$
|
|
*
|
|
* Driver for WM8758 audio codec - based on datasheet for WM8983
|
|
*
|
|
* Based on code from the ipodlinux project - http://ipodlinux.org/
|
|
* Adapted for Rockbox in December 2005
|
|
*
|
|
* Original file: linux/arch/armnommu/mach-ipod/audio.c
|
|
*
|
|
* Copyright (c) 2003-2005 Bernard Leach (leachbj@bouncycastle.org)
|
|
*
|
|
* All files in this archive are subject to the GNU General Public License.
|
|
* See the file COPYING in the source tree root for full license agreement.
|
|
*
|
|
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
|
* KIND, either express or implied.
|
|
*
|
|
****************************************************************************/
|
|
#include "system.h"
|
|
#include "string.h"
|
|
#include "audio.h"
|
|
|
|
#include "wmcodec.h"
|
|
#include "audiohw.h"
|
|
#include "i2s.h"
|
|
|
|
const struct sound_settings_info audiohw_settings[] = {
|
|
[SOUND_VOLUME] = {"dB", 0, 1, -58, 6, -25},
|
|
[SOUND_BASS] = {"dB", 0, 1, -12, 12, 0},
|
|
[SOUND_TREBLE] = {"dB", 0, 1, -12, 12, 0},
|
|
[SOUND_BALANCE] = {"%", 0, 1,-100, 100, 0},
|
|
[SOUND_CHANNELS] = {"", 0, 1, 0, 5, 0},
|
|
[SOUND_STEREO_WIDTH] = {"%", 0, 5, 0, 250, 100},
|
|
[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},
|
|
[SOUND_BASS_CUTOFF] = {"", 0, 1, 1, 4, 1},
|
|
[SOUND_TREBLE_CUTOFF] = {"", 0, 1, 1, 4, 1},
|
|
};
|
|
|
|
/* shadow registers */
|
|
unsigned int eq1_reg;
|
|
unsigned int eq5_reg;
|
|
|
|
/* convert tenth of dB volume (-57..6) to master volume register value */
|
|
int tenthdb2master(int db)
|
|
{
|
|
/* +6 to -57dB in 1dB steps == 64 levels = 6 bits */
|
|
/* 0111111 == +6dB (0x3f) = 63) */
|
|
/* 0111001 == 0dB (0x39) = 57) */
|
|
/* 0000001 == -56dB (0x01) = */
|
|
/* 0000000 == -57dB (0x00) */
|
|
|
|
/* 1000000 == Mute (0x40) */
|
|
|
|
if (db < VOLUME_MIN) {
|
|
return 0x40;
|
|
} else {
|
|
return((db/10)+57);
|
|
}
|
|
}
|
|
|
|
/* convert tenth of dB volume (-780..0) to mixer volume register value */
|
|
int tenthdb2mixer(int db)
|
|
{
|
|
if (db < -660) /* 1.5 dB steps */
|
|
return (2640 - db) / 15;
|
|
else if (db < -600) /* 0.75 dB steps */
|
|
return (990 - db) * 2 / 15;
|
|
else if (db < -460) /* 0.5 dB steps */
|
|
return (460 - db) / 5;
|
|
else /* 0.25 dB steps */
|
|
return -db * 2 / 5;
|
|
}
|
|
|
|
#define IPOD_PCM_LEVEL 0x65 /* -6dB */
|
|
|
|
//#define BASSCTRL 0x
|
|
//#define TREBCTRL 0x0b
|
|
|
|
/* Silently enable / disable audio output */
|
|
void audiohw_enable_output(bool enable)
|
|
{
|
|
if (enable)
|
|
{
|
|
/* reset the I2S controller into known state */
|
|
i2s_reset();
|
|
|
|
/* TODO: Review the power-up sequence to prevent pops */
|
|
|
|
wmcodec_write(RESET, 0x1ff); /*Reset*/
|
|
|
|
wmcodec_write(PWRMGMT1, 0x2b);
|
|
wmcodec_write(PWRMGMT2, 0x180);
|
|
wmcodec_write(PWRMGMT3, 0x6f);
|
|
|
|
wmcodec_write(AINTFCE, 0x10);
|
|
wmcodec_write(CLKCTRL, 0x49);
|
|
|
|
wmcodec_write(OUTCTRL, 1);
|
|
|
|
/* The iPod can handle multiple frequencies, but fix at 44.1KHz
|
|
for now */
|
|
audiohw_set_sample_rate(WM8758_44100HZ);
|
|
|
|
wmcodec_write(LOUTMIX,0x1); /* Enable mixer */
|
|
wmcodec_write(ROUTMIX,0x1); /* Enable mixer */
|
|
audiohw_mute(0);
|
|
} else {
|
|
audiohw_mute(1);
|
|
}
|
|
}
|
|
|
|
int audiohw_set_master_vol(int vol_l, int vol_r)
|
|
{
|
|
/* OUT1 */
|
|
wmcodec_write(LOUT1VOL, 0x080 | vol_l);
|
|
wmcodec_write(ROUT1VOL, 0x180 | vol_r);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int audiohw_set_lineout_vol(int vol_l, int vol_r)
|
|
{
|
|
/* OUT2 */
|
|
wmcodec_write(LOUT2VOL, vol_l);
|
|
wmcodec_write(ROUT2VOL, 0x100 | vol_r);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int audiohw_set_mixer_vol(int channel1, int channel2)
|
|
{
|
|
(void)channel1;
|
|
(void)channel2;
|
|
|
|
return 0;
|
|
}
|
|
|
|
void audiohw_set_bass(int value)
|
|
{
|
|
eq1_reg = (eq1_reg & ~EQ_GAIN_MASK) | EQ_GAIN_VALUE(value);
|
|
wmcodec_write(EQ1, 0x100 | eq1_reg);
|
|
}
|
|
|
|
void audiohw_set_bass_cutoff(int value)
|
|
{
|
|
eq1_reg = (eq1_reg & ~EQ_CUTOFF_MASK) | EQ_CUTOFF_VALUE(value);
|
|
wmcodec_write(EQ1, 0x100 | eq1_reg);
|
|
}
|
|
|
|
void audiohw_set_treble(int value)
|
|
{
|
|
eq5_reg = (eq5_reg & ~EQ_GAIN_MASK) | EQ_GAIN_VALUE(value);
|
|
wmcodec_write(EQ5, eq5_reg);
|
|
}
|
|
|
|
void audiohw_set_treble_cutoff(int value)
|
|
{
|
|
eq5_reg = (eq5_reg & ~EQ_CUTOFF_MASK) | EQ_CUTOFF_VALUE(value);
|
|
wmcodec_write(EQ5, eq5_reg);
|
|
}
|
|
|
|
void audiohw_mute(bool mute)
|
|
{
|
|
if (mute)
|
|
{
|
|
/* Set DACMU = 1 to soft-mute the audio DACs. */
|
|
wmcodec_write(DACCTRL, 0x40);
|
|
} else {
|
|
/* Set DACMU = 0 to soft-un-mute the audio DACs. */
|
|
wmcodec_write(DACCTRL, 0x0);
|
|
}
|
|
}
|
|
|
|
/* Nice shutdown of WM8758 codec */
|
|
void audiohw_close(void)
|
|
{
|
|
audiohw_mute(1);
|
|
|
|
wmcodec_write(PWRMGMT3, 0x0);
|
|
|
|
wmcodec_write(PWRMGMT1, 0x0);
|
|
|
|
wmcodec_write(PWRMGMT2, 0x40);
|
|
}
|
|
|
|
/* Change the order of the noise shaper, 5th order is recommended above 32kHz */
|
|
void audiohw_set_nsorder(int order)
|
|
{
|
|
(void)order;
|
|
}
|
|
|
|
/* Note: Disable output before calling this function */
|
|
void audiohw_set_sample_rate(int sampling_control)
|
|
{
|
|
/**** We force 44.1KHz for now. ****/
|
|
(void)sampling_control;
|
|
|
|
/* set clock div */
|
|
wmcodec_write(CLKCTRL, 1 | (0 << 2) | (2 << 5));
|
|
|
|
/* setup PLL for MHZ=11.2896 */
|
|
wmcodec_write(PLLN, (1 << 4) | 0x7);
|
|
wmcodec_write(PLLK1, 0x21);
|
|
wmcodec_write(PLLK2, 0x161);
|
|
wmcodec_write(PLLK3, 0x26);
|
|
|
|
/* set clock div */
|
|
wmcodec_write(CLKCTRL, 1 | (1 << 2) | (2 << 5) | (1 << 8));
|
|
|
|
/* set srate */
|
|
wmcodec_write(SRATECTRL, (0 << 1));
|
|
}
|
|
|
|
void audiohw_enable_recording(bool source_mic)
|
|
{
|
|
(void)source_mic; /* We only have a line-in (I think) */
|
|
|
|
/* reset the I2S controller into known state */
|
|
i2s_reset();
|
|
|
|
wmcodec_write(RESET, 0x1ff); /*Reset*/
|
|
|
|
wmcodec_write(PWRMGMT1, 0x2b);
|
|
wmcodec_write(PWRMGMT2, 0x18f); /* Enable ADC - 0x0c enables left/right PGA input, and 0x03 turns on power to the ADCs */
|
|
wmcodec_write(PWRMGMT3, 0x6f);
|
|
|
|
wmcodec_write(AINTFCE, 0x10);
|
|
wmcodec_write(CLKCTRL, 0x49);
|
|
|
|
wmcodec_write(OUTCTRL, 1);
|
|
|
|
/* The iPod can handle multiple frequencies, but fix at 44.1KHz
|
|
for now */
|
|
audiohw_set_sample_rate(WM8758_44100HZ);
|
|
|
|
wmcodec_write(INCTRL,0x44); /* Connect L2 and R2 inputs */
|
|
|
|
/* Set L2/R2_2BOOSTVOL to 0db (bits 4-6) */
|
|
/* 000 = disabled
|
|
001 = -12dB
|
|
010 = -9dB
|
|
011 = -6dB
|
|
100 = -3dB
|
|
101 = 0dB
|
|
110 = 3dB
|
|
111 = 6dB
|
|
*/
|
|
wmcodec_write(LADCBOOST,0x50);
|
|
wmcodec_write(RADCBOOST,0x50);
|
|
|
|
/* Set L/R input PGA Volume to 0db */
|
|
// wm8758_write(LINPGAVOL,0x3f);
|
|
// wm8758_write(RINPGAVOL,0x13f);
|
|
|
|
/* Enable monitoring */
|
|
wmcodec_write(LOUTMIX,0x17); /* Enable output mixer - BYPL2LMIX @ 0db*/
|
|
wmcodec_write(ROUTMIX,0x17); /* Enable output mixer - BYPR2RMIX @ 0db*/
|
|
|
|
audiohw_mute(0);
|
|
}
|
|
|
|
void audiohw_disable_recording(void) {
|
|
audiohw_mute(1);
|
|
|
|
wmcodec_write(PWRMGMT3, 0x0);
|
|
|
|
wmcodec_write(PWRMGMT1, 0x0);
|
|
|
|
wmcodec_write(PWRMGMT2, 0x40);
|
|
}
|
|
|
|
void audiohw_set_recvol(int left, int right, int type) {
|
|
|
|
(void)left;
|
|
(void)right;
|
|
(void)type;
|
|
}
|
|
|
|
void audiohw_set_monitor(bool enable) {
|
|
|
|
(void)enable;
|
|
}
|
|
|