677 lines
20 KiB
C
677 lines
20 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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* Driver for WM8751 audio codec
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*
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* Based on code from the ipodlinux project - http://ipodlinux.org/
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* Adapted for Rockbox in December 2005
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*
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* Original file: linux/arch/armnommu/mach-ipod/audio.c
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*
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* Copyright (c) 2003-2005 Bernard Leach (leachbj@bouncycastle.org)
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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 "config.h"
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#include "kernel.h"
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#include "wmcodec.h"
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#include "audio.h"
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#include "audiohw.h"
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#include "system.h"
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#include "sound.h"
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static uint16_t wmcodec_regs[WM_NUM_REGS] =
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{
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[0 ... WM_NUM_REGS-1] = 0x200, /* set invalid data in gaps */
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#ifdef HAVE_WM8750
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[LINVOL] = 0x097,
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[RINVOL] = 0x097,
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#endif
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[LOUT1] = 0x079,
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[ROUT1] = 0x079,
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[DACCTRL] = 0x008,
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[AINTFCE] = 0x00a,
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[CLOCKING] = 0x000,
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[LEFTGAIN] = 0x0ff,
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[RIGHTGAIN] = 0x0ff,
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[BASSCTRL] = 0x00f,
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[TREBCTRL] = 0x00f,
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/* [RESET] */
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#ifdef HAVE_WM8750
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[ENHANCE_3D] = 0x000,
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[ALC1] = 0x07b,
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[ALC2] = 0x000,
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[ALC3] = 0x032,
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[NGAT] = 0x000,
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[LADCVOL] = 0x0c3,
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[RADCVOL] = 0x0c3,
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#endif
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[ADDITIONAL1] = 0x0c0,
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[ADDITIONAL2] = 0x000,
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[PWRMGMT1] = 0x000,
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[PWRMGMT2] = 0x000,
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[ADDITIONAL3] = 0x000,
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#ifdef HAVE_WM8750
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[ADCIM] = 0x000,
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[ADCL] = 0x000,
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[ADCR] = 0x000,
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#endif
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[LEFTMIX1] = 0x050,
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[LEFTMIX2] = 0x050,
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[RIGHTMIX1] = 0x050,
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[RIGHTMIX2] = 0x050,
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[MONOMIX1] = 0x050,
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[MONOMIX2] = 0x050,
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[LOUT2] = 0x079,
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[ROUT2] = 0x079,
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[MONOOUT] = 0x079
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};
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/* global prescaler vars */
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static int prescalertone = 0;
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static int prescaler3d = 0;
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static void wmcodec_set_reg(unsigned int reg, unsigned int val)
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{
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if (reg >= WM_NUM_REGS || (wmcodec_regs[reg] & 0x200))
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/* invalid register */
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return;
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wmcodec_regs[reg] = val & 0x1ff;
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wmcodec_write(reg, wmcodec_regs[reg]);
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}
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static void wmcodec_set_bits(unsigned int reg, unsigned int bits)
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{
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wmcodec_set_reg(reg, wmcodec_regs[reg] | bits);
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}
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static void wmcodec_clear_bits(unsigned int reg, unsigned int bits)
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{
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wmcodec_set_reg(reg, wmcodec_regs[reg] & ~bits);
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}
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static void wmcodec_set_masked(unsigned int reg, unsigned int val,
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unsigned int mask )
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{
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wmcodec_set_reg(reg, (wmcodec_regs[reg] & ~mask) | val);
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}
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/* convert tenth of dB volume (-730..60) to master volume register value */
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static int vol_tenthdb2hw(int db)
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{
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/* +6 to -73dB 1dB steps (plus mute == 80levels) 7bits */
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/* 1111111 == +6dB (0x7f) */
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/* 1111001 == 0dB (0x79) */
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/* 0110000 == -73dB (0x30) */
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/* 0101111..0000000 == mute (<= 0x2f) */
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if (db <= -740)
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return 0x0;
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else
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return (db / 10) + 73 + 0x30;
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}
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static int tone_tenthdb2hw(int value)
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{
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/* -6.0db..+0db..+9.0db step 1.5db - translate -60..+0..+90 step 15
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to 10..6..0 step -1.
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*/
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value = 10 - (value + 60) / 15;
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if (value == 6)
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value = 0xf; /* 0db -> off */
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return value;
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}
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#ifdef AUDIOHW_HAVE_BASS_CUTOFF
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void audiohw_set_bass_cutoff(int val)
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{
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if ( val == 130 )
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wmcodec_clear_bits(BASSCTRL, BASSCTRL_BC);
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else
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wmcodec_set_bits(BASSCTRL, BASSCTRL_BC);
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}
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#endif
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#ifdef AUDIOHW_HAVE_TREBLE_CUTOFF
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void audiohw_set_treble_cutoff(int val)
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{
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if ( val == 8 )
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wmcodec_clear_bits(TREBCTRL, TREBCTRL_TC);
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else
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wmcodec_set_bits(TREBCTRL, TREBCTRL_TC);
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}
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#endif
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static void audiohw_mute(bool mute)
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{
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/* Mute: Set DACMU = 1 to soft-mute the audio DACs. */
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/* Unmute: Set DACMU = 0 to soft-un-mute the audio DACs. */
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if (mute)
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wmcodec_set_bits(DACCTRL, DACCTRL_DACMU);
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else
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wmcodec_clear_bits(DACCTRL, DACCTRL_DACMU);
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}
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/* Reset and power up the WM8751 */
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void audiohw_preinit(void)
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{
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#if defined(MROBE_100)
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/* controls headphone ouput */
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GPIOL_ENABLE |= 0x10;
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GPIOL_OUTPUT_EN |= 0x10;
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GPIOL_OUTPUT_VAL |= 0x10; /* disable */
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#elif defined(MPIO_HD200)
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/* control headphone output
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* disabled on startup
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*/
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and_l(~(1<<25), &GPIO1_OUT);
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or_l((1<<25), &GPIO1_ENABLE);
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or_l((1<<25), &GPIO1_FUNCTION);
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#elif defined(MPIO_HD300)
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and_l(~(1<<5), &GPIO1_OUT);
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or_l((1<<5), &GPIO1_ENABLE);
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or_l((1<<5), &GPIO1_FUNCTION);
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#endif
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/*
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* 1. Switch on power supplies.
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* By default the WM8751 is in Standby Mode, the DAC is
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* digitally muted and the Audio Interface, Line outputs
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* and Headphone outputs are all OFF (DACMU = 1 Power
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* Management registers 1 and 2 are all zeros).
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*/
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wmcodec_write(RESET, RESET_RESET); /*Reset*/
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/* 2. Enable Vmid and VREF. */
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wmcodec_set_bits(PWRMGMT1, PWRMGMT1_VREF | PWRMGMT1_VMIDSEL_5K);
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#ifdef CODEC_SLAVE
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wmcodec_set_bits(AINTFCE,AINTFCE_WL_16 | AINTFCE_FORMAT_I2S);
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#else
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/* BCLKINV=0(Dont invert BCLK) MS=1(Enable Master) LRSWAP=0 LRP=0 */
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/* IWL=00(16 bit) FORMAT=10(I2S format) */
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wmcodec_set_bits(AINTFCE, AINTFCE_MS | AINTFCE_WL_16 |
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AINTFCE_FORMAT_I2S);
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#endif
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/* Set default samplerate */
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audiohw_set_frequency(HW_FREQ_DEFAULT);
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}
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/* Enable DACs and audio output after a short delay */
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void audiohw_postinit(void)
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{
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/* From app notes: allow Vref to stabilize to reduce clicks */
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sleep(HZ);
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#ifdef AUDIOHW_HAVE_DEPTH_3D
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wmcodec_set_bits(ENHANCE_3D, ENHANCE_3D_MODE3D_PLAYBACK);
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#endif
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/* 3. Enable DACs as required. */
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wmcodec_set_bits(PWRMGMT2, PWRMGMT2_DACL | PWRMGMT2_DACR);
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/* 4. Enable line and / or headphone output buffers as required. */
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#if defined(GIGABEAT_F)
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/* headphones + line-out */
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wmcodec_set_bits(PWRMGMT2, PWRMGMT2_LOUT1 | PWRMGMT2_ROUT1 |
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PWRMGMT2_LOUT2 | PWRMGMT2_ROUT2);
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#else
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/* headphones */
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wmcodec_set_bits(PWRMGMT2, PWRMGMT2_LOUT1 | PWRMGMT2_ROUT1);
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#endif
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/* Full -0dB on the DACS */
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wmcodec_set_bits(LEFTGAIN, 0xff);
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wmcodec_set_bits(RIGHTGAIN, RIGHTGAIN_RDVU | 0xff);
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/* Enable Thermal shutdown, Timeout when zero-crossing in use,
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* set analog bias for 3.3V, monomix to DACR
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*/
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wmcodec_set_reg(ADDITIONAL1, ADDITIONAL1_TSDEN | ADDITIONAL1_TOEN |
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ADDITIONAL1_DMONOMIX_LLRR | ADDITIONAL1_VSEL_DEFAULT);
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/* Enable zero-crossing in out stage */
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wmcodec_set_bits(LOUT1, LOUT1_LO1ZC);
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wmcodec_set_bits(ROUT1, ROUT1_RO1ZC);
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wmcodec_set_bits(LOUT2, LOUT2_LO2ZC);
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wmcodec_set_bits(ROUT2, ROUT2_RO2ZC);
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/* route signal from DAC to mixers */
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wmcodec_set_bits(LEFTMIX1, LEFTMIX1_LD2LO);
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wmcodec_set_bits(RIGHTMIX2, RIGHTMIX2_RD2RO);
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#ifdef TOSHIBA_GIGABEAT_F
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#ifdef HAVE_HARDWARE_BEEP
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/* Single-ended mono input */
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wmcodec_set_reg(MONOMIX1, 0x00);
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/* Route mono input to both outputs at 0dB */
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wmcodec_set_reg(LEFTMIX2, LEFTMIX2_MI2LO | LEFTMIX2_MI2LOVOL(2));
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wmcodec_set_reg(RIGHTMIX1, RIGHTMIX1_MI2RO | RIGHTMIX1_MI2ROVOL(2));
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#endif
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#endif
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/* lower power consumption */
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wmcodec_set_masked(PWRMGMT1, PWRMGMT1_VMIDSEL_50K,
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PWRMGMT1_VMIDSEL_MASK);
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audiohw_mute(false);
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#if defined(MROBE_100)
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/* enable headphone output */
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sleep(1);
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GPIOL_OUTPUT_VAL &= ~0x10;
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GPIOL_OUTPUT_EN |= 0x10;
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#elif defined(MPIO_HD200)
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/* enable headphone output */
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or_l((1<<25), &GPIO1_OUT);
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#elif defined(MPIO_HD300)
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or_l((1<<5), &GPIO1_OUT);
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#endif
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}
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void audiohw_set_volume(int vol_l, int vol_r)
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{
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vol_l = vol_tenthdb2hw(vol_l);
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vol_r = vol_tenthdb2hw(vol_r);
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wmcodec_set_masked(LOUT1, LOUT1_LOUT1VOL(vol_l),
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LOUT1_LOUT1VOL_MASK);
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wmcodec_set_masked(ROUT1, ROUT1_RO1VU | ROUT1_ROUT1VOL(vol_r),
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ROUT1_ROUT1VOL_MASK);
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}
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#ifdef AUDIOHW_HAVE_LINEOUT
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void audiohw_set_lineout_volume(int vol_l, int vol_r)
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{
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vol_l = vol_tenthdb2hw(vol_l);
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vol_r = vol_tenthdb2hw(vol_r);
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wmcodec_set_masked(LOUT2, LOUT2_LOUT2VOL(vol_l),
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LOUT2_LOUT2VOL_MASK);
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wmcodec_set_masked(ROUT2, ROUT2_RO2VU | ROUT2_ROUT2VOL(vol_r),
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ROUT2_ROUT2VOL_MASK);
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}
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#endif /* AUDIOHW_HAVE_LINEOUT */
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void audiohw_set_bass(int value)
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{
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value = tone_tenthdb2hw(value);
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wmcodec_set_masked(BASSCTRL, BASSCTRL_BASS(value),
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BASSCTRL_BASS_MASK);
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}
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void audiohw_set_treble(int value)
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{
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value = tone_tenthdb2hw(value);
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wmcodec_set_masked(TREBCTRL, TREBCTRL_TREB(value),
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TREBCTRL_TREB_MASK);
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}
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static void sync_prescaler(void)
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{
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int prescaler;
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prescaler = prescalertone + prescaler3d;
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/* attenuate in 0.5dB steps (0dB - -127dB) */
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wmcodec_set_reg(LEFTGAIN, 0xff - (prescaler & LEFTGAIN_LDACVOL));
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wmcodec_set_reg(RIGHTGAIN, RIGHTGAIN_RDVU |
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(0xff - (prescaler & RIGHTGAIN_RDACVOL)));
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}
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void audiohw_set_prescaler(int value)
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{
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prescalertone = 3 * value / 15; /* value in tdB */
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sync_prescaler();
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}
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/* Nice shutdown of WM8751 codec */
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void audiohw_close(void)
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{
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/* 1. Set DACMU = 1 to soft-mute the audio DACs. */
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audiohw_mute(true);
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#if defined(MPIO_HD200)
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/* disable headphone out */
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and_l(~(1<<25), &GPIO1_OUT);
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#elif defined(MPIO_HD300)
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and_l(~(1<<5), &GPIO1_OUT);
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#endif
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/* 2. Disable all output buffers. */
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wmcodec_set_reg(PWRMGMT2, 0x0);
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/* 3. Switch off the power supplies. */
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wmcodec_set_reg(PWRMGMT1, 0x0);
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}
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/* According to datasheet of WM8750
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* clocking setup is needed in both slave and master mode
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*/
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void audiohw_set_frequency(int fsel)
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{
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(void)fsel;
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static const unsigned char srctrl_table[HW_NUM_FREQ] =
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{
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HW_HAVE_11_([HW_FREQ_11] = CODEC_SRCTRL_11025HZ,)
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HW_HAVE_22_([HW_FREQ_22] = CODEC_SRCTRL_22050HZ,)
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HW_HAVE_44_([HW_FREQ_44] = CODEC_SRCTRL_44100HZ,)
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HW_HAVE_88_([HW_FREQ_88] = CODEC_SRCTRL_88200HZ,)
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};
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if ((unsigned)fsel >= HW_NUM_FREQ)
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fsel = HW_FREQ_DEFAULT;
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wmcodec_set_reg(CLOCKING, srctrl_table[fsel]);
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}
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#ifdef HAVE_WM8750
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#ifdef AUDIOHW_HAVE_DEPTH_3D
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/* Set the depth of the 3D effect */
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void audiohw_set_depth_3d(int val)
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{
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if (val > 0)
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{
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wmcodec_set_bits(ENHANCE_3D, ENHANCE_3D_3DEN);
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wmcodec_set_masked(ENHANCE_3D, ENHANCE_3D_DEPTH(val),
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ENHANCE_3D_DEPTH_MASK);
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}
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else
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{
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wmcodec_clear_bits(ENHANCE_3D, ENHANCE_3D_3DEN);
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}
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/* -4 dB @ full setting
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* this gives approximately constant volume on setting change
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* and prevents clipping (at least on my HD300)
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*/
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prescaler3d = 8*val / 15;
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sync_prescaler();
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}
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#endif
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#ifdef HAVE_RECORDING
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#if 0
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static void audiohw_set_ngat(int ngath, int type, bool enable)
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{
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/* This function controls Noise gate function
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* of the codec. This can only run in conjunction
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* with ALC
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*/
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if(enable)
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wmcodec_set_reg(NGAT, NGAT_NGG(type) |
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NGAT_NGTH(ngath) | NGAT_NGAT);
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else
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wmcodec_clear_bits(NGAT, NGAT_NGAT);
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}
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static void audiohw_set_alc(unsigned char level, /* signal level at ADC */
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bool zc, /* zero cross detection */
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unsigned char hold, /* hold time */
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unsigned char decay, /* decay time */
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unsigned char attack, /* attack time */
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bool enable) /* hw function on/off */
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{
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if(enable)
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{
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wmcodec_set_reg(ALC1, ALC1_ALCSEL_STEREO | ALC1_MAXGAIN(0x07) |
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ALC1_ALCL(level));
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wmcodec_set_reg(ALC2, zc?ALC2_ALCZC:0 | ALC2_HLD(hold));
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wmcodec_set_reg(ALC3, ALC3_DCY(decay) | ALC3_ATK(attack));
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}
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else
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{
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wmcodec_set_masked(ALC1, ALC1_ALCSEL_DISABLED, ALC1_ALCSEL_MASK);
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}
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}
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#endif
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void audiohw_set_recsrc(int source, bool recording)
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{
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/* INPUT1 - FM radio
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* INPUT2 - Line-in
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* INPUT3 - MIC
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*
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* if recording == false we use analog bypass from input
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* turn off ADC, PGA to save power
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* turn on output buffer(s)
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*
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* if recording == true we route input signal to PGA
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* and monitoring picks up signal after PGA and ADC
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* turn on ADC, PGA, DAC, output buffer(s)
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*/
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switch(source)
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{
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case AUDIO_SRC_PLAYBACK:
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audiohw_mute(true);
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/* mute PGA, disable all audio paths but DAC and output stage*/
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wmcodec_set_bits(LINVOL, LINVOL_LINMUTE); /* Mute */
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wmcodec_set_bits(RINVOL, RINVOL_RINMUTE); /* Mute */
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wmcodec_clear_bits(PWRMGMT2, PWRMGMT2_OUT3 | PWRMGMT2_MOUT |
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PWRMGMT2_ROUT2 | PWRMGMT2_LOUT2);
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/* route DAC signal to output mixer, disable INPUT routing */
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wmcodec_clear_bits(LEFTMIX1, LEFTMIX1_LI2LO);
|
|
wmcodec_set_bits(LEFTMIX1, LEFTMIX1_LD2LO);
|
|
wmcodec_clear_bits(RIGHTMIX2, RIGHTMIX2_RI2RO);
|
|
wmcodec_set_bits(RIGHTMIX2, RIGHTMIX2_RD2RO);
|
|
|
|
/* unmute DAC */
|
|
audiohw_mute(false);
|
|
break;
|
|
|
|
case AUDIO_SRC_FMRADIO:
|
|
if(recording)
|
|
{
|
|
audiohw_mute(true);
|
|
/* Turn on PGA and ADC */
|
|
wmcodec_set_bits(PWRMGMT1, PWRMGMT1_AINL | PWRMGMT1_AINR |
|
|
PWRMGMT1_ADCL | PWRMGMT1_ADCR);
|
|
|
|
/* Setup input source for PGA as INPUT1 */
|
|
wmcodec_set_masked(ADCL, ADCL_LINSEL_LINPUT1, ADCL_LINSEL_MASK);
|
|
wmcodec_set_masked(ADCR, ADCR_RINSEL_RINPUT1, ADCR_RINSEL_MASK);
|
|
|
|
/* turn off ALC and NGAT as OF do */
|
|
/*
|
|
audiohw_set_alc(0x00, false, 0x00, 0x00, 0x00, false);
|
|
audiohw_set_ngat(0x00, 0x00, false);
|
|
*/
|
|
|
|
/* setup output digital data
|
|
* default is LADC -> LDATA, RADC -> RDATA
|
|
* so we don't touch this
|
|
*/
|
|
|
|
/* skip: power up DAC and output stage as its never powered down
|
|
wmcodec_set_bits(PWRMGMT2, PWRMGMT2_DACL | PWRMGMT2_DACR |
|
|
PWRMGMT2_LOUT1 | PWRMGMT2_ROUT1);
|
|
*/
|
|
|
|
/* route DAC signal to output mixer, disable INPUT routing */
|
|
wmcodec_clear_bits(LEFTMIX1, LEFTMIX1_LI2LO);
|
|
wmcodec_set_bits(LEFTMIX1, LEFTMIX1_LD2LO);
|
|
wmcodec_clear_bits(RIGHTMIX2, RIGHTMIX2_RI2RO);
|
|
wmcodec_set_bits(RIGHTMIX2, RIGHTMIX2_RD2RO);
|
|
|
|
audiohw_mute(false);
|
|
}
|
|
else
|
|
{
|
|
audiohw_mute(true);
|
|
|
|
/* turn off ADC, PGA */
|
|
wmcodec_clear_bits(PWRMGMT1, PWRMGMT1_AINL | PWRMGMT1_AINR |
|
|
PWRMGMT1_ADCL | PWRMGMT1_ADCR);
|
|
|
|
/* setup monitor mode by routing input signal to outmix
|
|
* at 0dB volume
|
|
*/
|
|
wmcodec_set_masked(LEFTMIX1, LEFTMIX1_LI2LOVOL(0x20),
|
|
LEFTMIX1_LI2LOVOL_MASK);
|
|
wmcodec_set_bits(LEFTMIX1, LEFTMIX1_LI2LO |
|
|
LEFTMIX1_LMIXSEL_LINPUT1 |
|
|
LEFTMIX1_LD2LO);
|
|
wmcodec_set_masked(RIGHTMIX2, RIGHTMIX2_RI2ROVOL(0x20),
|
|
RIGHTMIX2_RI2ROVOL_MASK);
|
|
wmcodec_set_bits(RIGHTMIX1, RIGHTMIX1_RMIXSEL_RINPUT1);
|
|
wmcodec_set_bits(RIGHTMIX2, RIGHTMIX2_RI2RO |
|
|
RIGHTMIX2_RD2RO);
|
|
|
|
audiohw_mute(false);
|
|
}
|
|
break;
|
|
|
|
#if (INPUT_SRC_CAPS & SRC_CAP_LINEIN)
|
|
case AUDIO_SRC_LINEIN:
|
|
audiohw_mute(true);
|
|
|
|
/* Turn on PGA, ADC */
|
|
wmcodec_set_bits(PWRMGMT1, PWRMGMT1_AINL | PWRMGMT1_AINR |
|
|
PWRMGMT1_ADCL | PWRMGMT1_ADCR);
|
|
|
|
/* Setup input source for PGA as INPUT2
|
|
* MICBOOST disabled
|
|
*/
|
|
wmcodec_set_masked(ADCL, ADCL_LINSEL_LINPUT2, ADCL_LINSEL_MASK);
|
|
wmcodec_set_masked(ADCR, ADCR_RINSEL_RINPUT2, ADCR_RINSEL_MASK);
|
|
|
|
/* setup ALC and NGAT as OF do */
|
|
/* level, zc, hold, decay, attack, enable */
|
|
/* audiohw_set_alc(0x0b, true, 0x00, 0x03, 0x02, true); */
|
|
/* ngath, type, enable */
|
|
/* audiohw_set_ngat(0x08, 0x02, true); */
|
|
|
|
/* setup output digital data
|
|
* default is LADC -> LDATA, RADC -> RDATA
|
|
* so we don't touch this
|
|
*/
|
|
|
|
/* route DAC signal to output mixer, disable INPUT routing */
|
|
wmcodec_clear_bits(LEFTMIX1, LEFTMIX1_LI2LO);
|
|
wmcodec_set_bits(LEFTMIX1, LEFTMIX1_LD2LO);
|
|
wmcodec_clear_bits(RIGHTMIX2, RIGHTMIX2_RI2RO);
|
|
wmcodec_set_bits(RIGHTMIX2, RIGHTMIX2_RD2RO);
|
|
|
|
#if !defined(MPIO_HD300)
|
|
/* HD300 uses the same socket for headphones and line-in */
|
|
audiohw_mute(false);
|
|
#endif
|
|
break;
|
|
#endif
|
|
#if (INPUT_SRC_CAPS & SRC_CAP_MIC)
|
|
case AUDIO_SRC_MIC:
|
|
audiohw_mute(true);
|
|
|
|
/* Turn on PGA and ADC */
|
|
wmcodec_set_bits(PWRMGMT1, PWRMGMT1_AINL | PWRMGMT1_AINR |
|
|
PWRMGMT1_ADCL | PWRMGMT1_ADCR);
|
|
|
|
/* Setup input source for PGA as INPUT3
|
|
* MICBOOST disabled
|
|
*/
|
|
wmcodec_set_masked(ADCL, ADCL_LINSEL_LINPUT3, ADCL_LINSEL_MASK);
|
|
wmcodec_set_masked(ADCR, ADCR_RINSEL_RINPUT3, ADCR_RINSEL_MASK);
|
|
|
|
/* setup ALC and NGAT as OF do */
|
|
/* level, zc, hold, decay, attack, enable */
|
|
/* audiohw_set_alc(0x0f, false, 0x00, 0x05, 0x02, true); */
|
|
/* ngath, type, enable */
|
|
/* audiohw_set_ngat(0x1f, 0x00, true); */
|
|
|
|
/* setup output digital data
|
|
* default is LADC -> LDATA, RADC -> RDATA
|
|
* so we don't touch this
|
|
*/
|
|
|
|
/* route DAC signal to output mixer, disable INPUT routing */
|
|
wmcodec_clear_bits(LEFTMIX1, LEFTMIX1_LI2LO);
|
|
wmcodec_set_bits(LEFTMIX1, LEFTMIX1_LD2LO);
|
|
wmcodec_clear_bits(RIGHTMIX2, RIGHTMIX2_RI2RO);
|
|
wmcodec_set_bits(RIGHTMIX2, RIGHTMIX2_RD2RO);
|
|
|
|
audiohw_mute(false);
|
|
break;
|
|
#endif
|
|
} /* switch(source) */
|
|
}
|
|
|
|
static int digital_gain2hw(int value)
|
|
{
|
|
/* -9700 to 3000 => 0 ... 195 ... 255 */
|
|
return (2 * value) / 100 + 195;
|
|
}
|
|
|
|
static int pga_gain2hw(int value)
|
|
{
|
|
/* -1725 to 3000 => 0 ... 23 ... 63 */
|
|
return ((4 * value) / 300) + 23;
|
|
}
|
|
|
|
void audiohw_set_recvol(int vol_l, int vol_r, int type)
|
|
{
|
|
int d_vol_l = 0;
|
|
int d_vol_r = 0;
|
|
|
|
if (vol_l > 3000)
|
|
{
|
|
d_vol_l = vol_l - 3000;
|
|
vol_l = 3000;
|
|
}
|
|
|
|
if (vol_r > 3000)
|
|
{
|
|
d_vol_r = vol_r - 3000;
|
|
vol_r = 3000;
|
|
}
|
|
|
|
/* PGA left gain */
|
|
wmcodec_set_reg(LINVOL, LINVOL_LIZC | LINVOL_LINVOL(pga_gain2hw(vol_l)));
|
|
|
|
/* digital left gain set */
|
|
wmcodec_set_reg(LADCVOL, digital_gain2hw(d_vol_l));
|
|
|
|
if (type == AUDIO_GAIN_MIC)
|
|
{
|
|
/* PGA right gain = PGA left gain*/
|
|
wmcodec_set_reg(RINVOL, RINVOL_RIVU | RINVOL_RIZC |
|
|
RINVOL_RINVOL(pga_gain2hw(vol_l)));
|
|
|
|
/* digital right gain = digital left gain*/
|
|
wmcodec_set_reg(RADCVOL, RADCVOL_RAVU | digital_gain2hw(d_vol_l));
|
|
}
|
|
else
|
|
{
|
|
/* PGA right gain */
|
|
wmcodec_set_reg(RINVOL, RINVOL_RIVU | RINVOL_RIZC |
|
|
RINVOL_RINVOL(pga_gain2hw(vol_r)));
|
|
|
|
/* digital right gain */
|
|
wmcodec_set_reg(RADCVOL, RADCVOL_RAVU | digital_gain2hw(d_vol_r));
|
|
}
|
|
}
|
|
#endif /* HAVE_RECORDING */
|
|
#endif /* HAVE_WM8750 */
|