/*************************************************************************** * __________ __ ___. * 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) * * 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 "system.h" #include "string.h" #include "audio.h" #include "wmcodec.h" #include "audiohw.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}, #ifdef HAVE_RECORDING [SOUND_LEFT_GAIN] = {"dB", 1, 1, 0, 63, 16}, [SOUND_RIGHT_GAIN] = {"dB", 1, 1, 0, 63, 16}, [SOUND_MIC_GAIN] = {"dB", 1, 1, 0, 63, 16}, #endif [SOUND_BASS_CUTOFF] = {"", 0, 1, 1, 4, 1}, [SOUND_TREBLE_CUTOFF] = {"", 0, 1, 1, 4, 1}, }; /* shadow registers */ static unsigned short eq1_reg = EQ1_EQ3DMODE | EQ_GAIN_VALUE(0); static unsigned short eq5_reg = EQ_GAIN_VALUE(0); /* convert tenth of dB volume (-57..6) to master volume register value */ int tenthdb2master(int db) { if (db < VOLUME_MIN) { return 0x40; } else { return (db/10)+57; } } int sound_val2phys(int setting, int value) { int result; switch(setting) { #ifdef HAVE_RECORDING case SOUND_LEFT_GAIN: case SOUND_RIGHT_GAIN: case SOUND_MIC_GAIN: result = ((value - 16) * 15) / 2; break; #endif default: result = value; break; } return result; } void audiohw_mute(bool mute) { if (mute) { wmcodec_write(DACCTRL, DACCTRL_SOFTMUTE); } else { wmcodec_write(DACCTRL, 0); } } void audiohw_preinit(void) { wmcodec_write(RESET, RESET_RESET); wmcodec_write(PWRMGMT1, PWRMGMT1_PLLEN | PWRMGMT1_BIASEN | PWRMGMT1_VMIDSEL_5K); wmcodec_write(PWRMGMT2, PWRMGMT2_ROUT1EN | PWRMGMT2_LOUT1EN); wmcodec_write(PWRMGMT3, PWRMGMT3_LOUT2EN | PWRMGMT3_ROUT2EN | PWRMGMT3_RMIXEN | PWRMGMT3_LMIXEN | PWRMGMT3_DACENR | PWRMGMT3_DACENL); wmcodec_write(AINTFCE, AINTFCE_IWL_16BIT | AINTFCE_FORMAT_I2S); wmcodec_write(OUTCTRL, OUTCTRL_VROI); wmcodec_write(CLKCTRL, CLKCTRL_MS); /* WM8758 is clock master */ audiohw_set_frequency(HW_FREQ_44); wmcodec_write(LOUTMIX, LOUTMIX_DACL2LMIX); wmcodec_write(ROUTMIX, ROUTMIX_DACR2RMIX); } void audiohw_postinit(void) { wmcodec_write(PWRMGMT1, PWRMGMT1_PLLEN | PWRMGMT1_BIASEN | PWRMGMT1_VMIDSEL_75K); /* lower the VMID power consumption */ audiohw_mute(false); } void audiohw_set_master_vol(int vol_l, int vol_r) { /* OUT1 */ wmcodec_write(LOUT1VOL, LOUT1VOL_LOUT1ZC | vol_l); wmcodec_write(ROUT1VOL, ROUT1VOL_OUT1VU | ROUT1VOL_ROUT1ZC | vol_r); } void audiohw_set_lineout_vol(int vol_l, int vol_r) { /* OUT2 */ wmcodec_write(LOUT2VOL, LOUT2VOL_LOUT2ZC | vol_l); wmcodec_write(ROUT2VOL, ROUT2VOL_OUT2VU | ROUT2VOL_ROUT2ZC | vol_r); } void audiohw_set_bass(int value) { eq1_reg = (eq1_reg & ~EQ_GAIN_MASK) | EQ_GAIN_VALUE(value); wmcodec_write(EQ1, eq1_reg); } void audiohw_set_bass_cutoff(int value) { eq1_reg = (eq1_reg & ~EQ_CUTOFF_MASK) | EQ_CUTOFF_VALUE(value); wmcodec_write(EQ1, 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); } /* Nice shutdown of WM8758 codec */ void audiohw_close(void) { audiohw_mute(true); wmcodec_write(PWRMGMT3, 0); wmcodec_write(PWRMGMT1, 0); wmcodec_write(PWRMGMT2, PWRMGMT2_SLEEP); } /* Note: Disable output before calling this function */ void audiohw_set_frequency(int fsel) { /**** We force 44.1KHz for now. ****/ (void)fsel; /* setup PLL for MHZ=11.2896 */ wmcodec_write(PLLN, PLLN_PLLPRESCALE | 0x7); wmcodec_write(PLLK1, 0x21); wmcodec_write(PLLK2, 0x161); wmcodec_write(PLLK3, 0x26); /* set clock div */ wmcodec_write(CLKCTRL, CLKCTRL_CLKSEL | CLKCTRL_MCLKDIV_2 | CLKCTRL_BCLKDIV_2 | CLKCTRL_MS); wmcodec_write(ADDCTRL, ADDCTRL_SR_48kHz | ADDCTRL_SLOWCLKEN); /* SLOWCLK enabled for zero cross timeout to work */ } void audiohw_enable_recording(bool source_mic) { (void)source_mic; /* We only have a line-in (I think) */ wmcodec_write(PWRMGMT2, PWRMGMT2_ROUT1EN | PWRMGMT2_LOUT1EN | PWRMGMT2_INPGAENR | PWRMGMT2_INPGAENL | PWRMGMT2_ADCENR | PWRMGMT2_ADCENL); wmcodec_write(INCTRL, INCTRL_R2_2INPGA | INCTRL_L2_2INPGA); wmcodec_write(LADCBOOST, LADCBOOST_L2_2BOOST(5)); wmcodec_write(RADCBOOST, RADCBOOST_R2_2BOOST(5)); /* Enable monitoring */ wmcodec_write(LOUTMIX, LOUTMIX_BYP2LMIXVOL(5) | LOUTMIX_BYPL2LMIX | LOUTMIX_DACL2LMIX); wmcodec_write(ROUTMIX, ROUTMIX_BYP2RMIXVOL(5) | ROUTMIX_BYPR2RMIX | ROUTMIX_DACR2RMIX); } void audiohw_disable_recording(void) { wmcodec_write(LOUTMIX, LOUTMIX_DACL2LMIX); wmcodec_write(ROUTMIX, ROUTMIX_DACR2RMIX); wmcodec_write(PWRMGMT2, PWRMGMT2_ROUT1EN | PWRMGMT2_LOUT1EN); } void audiohw_set_recvol(int left, int right, int type) { switch (type) { case AUDIO_GAIN_MIC: right = left; /* fall through */ case AUDIO_GAIN_LINEIN: wmcodec_write(LINPGAVOL, LINPGAVOL_INPGAZCL | (left & LINPGAVOL_INPGAVOL_MASK)); wmcodec_write(RINPGAVOL, RINPGAVOL_INPGAVU | RINPGAVOL_INPGAZCR | (right & RINPGAVOL_INPGAVOL_MASK)); break; default: return; } } void audiohw_set_monitor(bool enable) { (void)enable; }