/*************************************************************************** * __________ __ ___. * Open \______ \ ____ ____ | | _\_ |__ _______ ___ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ * \/ \/ \/ \/ \/ * $Id$ * * Copyright (c) 2009 Mark Arigo * * 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 "system.h" #include "string.h" // #define LOGF_ENABLE #include "logf.h" #include "pcm_sampr.h" #include "audio.h" #include "akcodec.h" #include "audiohw.h" #include "sound.h" const struct sound_settings_info audiohw_settings[] = { [SOUND_VOLUME] = {"dB", 0, 1,-127, 0, -25}, /* HAVE_SW_TONE_CONTROLS */ [SOUND_BASS] = {"dB", 0, 1, -24, 24, 0}, [SOUND_TREBLE] = {"dB", 0, 1, -24, 24, 0}, [SOUND_BALANCE] = {"%", 0, 1,-100, 100, 0}, [SOUND_CHANNELS] = {"", 0, 1, 0, 5, 0}, [SOUND_STEREO_WIDTH] = {"%", 0, 5, 0, 250, 100}, #if defined(HAVE_RECORDING) [SOUND_LEFT_GAIN] = {"dB", 1, 1, 0, 31, 23}, [SOUND_RIGHT_GAIN] = {"dB", 1, 1, 0, 31, 23}, [SOUND_MIC_GAIN] = {"dB", 1, 1, 0, 1, 0}, #endif }; static unsigned char akc_regs[AKC_NUM_REGS]; static void akc_write(int reg, unsigned val) { if ((unsigned)reg >= AKC_NUM_REGS) return; akc_regs[reg] = (unsigned char)val; akcodec_write(reg, val); } static void akc_set(int reg, unsigned bits) { akc_write(reg, akc_regs[reg] | bits); } static void akc_clear(int reg, unsigned bits) { akc_write(reg, akc_regs[reg] & ~bits); } static void akc_write_masked(int reg, unsigned bits, unsigned mask) { akc_write(reg, (akc_regs[reg] & ~mask) | (bits & mask)); } #if 0 static void codec_set_active(int active) { (void)active; } #endif /* convert tenth of dB volume (-1270..0) to master volume register value */ int tenthdb2master(int db) { if (db < VOLUME_MIN) return 0xff; /* mute */ else if (db >= VOLUME_MAX) return 0x00; else return ((-db)/5); } int sound_val2phys(int setting, int value) { int result; switch(setting) { #ifdef HAVE_RECORDING case SOUND_LEFT_GAIN: case SOUND_RIGHT_GAIN: result = (value - 23) * 15; /* fix */ break; case SOUND_MIC_GAIN: result = value * 200; /* fix */ break; #endif default: result = value; break; } return result; } void audiohw_mute(bool mute) { if (mute) { akc_set(AK4537_DAC, SMUTE); udelay(200000); } else { udelay(200000); akc_clear(AK4537_DAC, SMUTE); } } void audiohw_preinit(void) { int i; for (i = 0; i < AKC_NUM_REGS; i++) akc_regs[i] = akcodec_read(i); /* POWER UP SEQUENCE (from the datasheet) */ /* Note: the delay length is what the OF uses, although the datasheet suggests they can be shorter */ /* power up VCOM */ akc_set(AK4537_PM1, PMVCM); udelay(100000); /* setup AK4537_SIGSEL1 */ akc_set(AK4537_SIGSEL1, ALCS | MOUT2); udelay(100000); /* setup AK4537_SIGSEL2 */ akc_write_masked(AK4537_SIGSEL2, DAHS, (DAHS | HPL | HPR)); udelay(100000); /* setup AK4537_MODE1 */ akc_write_masked(AK4537_MODE1, DIF_I2S | BICK_32FS | MCKI_PLL_12000KHZ, (DIF_MASK | BICK_MASK | MCKI_MASK)); udelay(100000); /* CLOCK SETUP - X'tal used in PLL mode (master mode) */ /* release the pull-down of the XTI pin and power-up the X'tal osc */ akc_write_masked(AK4537_PM2, PMXTL, (MCLKPD | PMXTL)); udelay(100000); /* power-up the PLL */ akc_set(AK4537_PM2, PMPLL); udelay(100000); /* enable MCKO output and setup MCKO output freq */ akc_set(AK4537_MODE1, MCKO_EN); udelay(100000); /* ENABLE HEADPHONE AMP OUTPUT */ /* setup the sampling freq if PLL mode is used */ akc_write_masked(AK4537_MODE2, AKC_PLL_44100HZ, FS_MASK); /* setup the low freq boost level */ akc_write_masked(AK4537_DAC, BST_OFF, BST_MASK); /* setup the digital volume */ akc_write(AK4537_ATTL, 0x10); akc_write(AK4537_ATTR, 0x10); /* power up the DAC */ akc_set(AK4537_PM2, PMDAC); udelay(100000); /* power up the headphone amp */ akc_clear(AK4537_SIGSEL2, HPL | HPR); udelay(100000); /* power up the common voltage of headphone amp */ akc_set(AK4537_PM2, PMHPL | PMHPR); udelay(100000); } void audiohw_postinit(void) { /* nothing */ } void audiohw_close(void) { /* POWER DOWN SEQUENCE (from the datasheet) */ /* mute */ akc_write(AK4537_ATTL, 0xff); akc_write(AK4537_ATTR, 0xff); akc_set(AK4537_DAC, SMUTE); udelay(100000); /* power down the common voltage of headphone amp */ akc_clear(AK4537_PM2, PMHPL | PMHPR); /* power down the DAC */ akc_clear(AK4537_PM2, PMDAC); /* power down the headphone amp */ akc_set(AK4537_SIGSEL2, HPL | HPR); /* disable MCKO */ akc_clear(AK4537_MODE1, MCKO_EN); /* power down X'tal and PLL, pull down the XTI pin */ akc_write_masked(AK4537_PM2, MCLKPD, (MCLKPD | PMXTL | PMPLL)); /* power down VCOM */ akc_clear(AK4537_PM1, PMVCM); udelay(100000); akcodec_close(); /* target-specific */ } void audiohw_set_master_vol(int vol_l, int vol_r) { akc_write(AK4537_ATTL, vol_l & 0xff); akc_write(AK4537_ATTR, vol_r & 0xff); } void audiohw_set_frequency(int fsel) { static const unsigned char srctrl_table[HW_NUM_FREQ] = { HW_HAVE_8_([HW_FREQ_8] = AKC_PLL_8000HZ, ) HW_HAVE_11_([HW_FREQ_11] = AKC_PLL_11025HZ,) HW_HAVE_16_([HW_FREQ_16] = AKC_PLL_16000HZ,) HW_HAVE_22_([HW_FREQ_22] = AKC_PLL_22050HZ,) HW_HAVE_24_([HW_FREQ_24] = AKC_PLL_24000HZ,) HW_HAVE_32_([HW_FREQ_32] = AKC_PLL_32000HZ,) HW_HAVE_44_([HW_FREQ_44] = AKC_PLL_44100HZ,) HW_HAVE_48_([HW_FREQ_48] = AKC_PLL_48000HZ,) }; if ((unsigned)fsel >= HW_NUM_FREQ) fsel = HW_FREQ_DEFAULT; akc_write_masked(AK4537_MODE2, srctrl_table[fsel], FS_MASK); } #if defined(HAVE_RECORDING) void audiohw_enable_recording(bool source_mic) { (void)source_mic; } void audiohw_disable_recording(void) { } void audiohw_set_recvol(int left, int right, int type) { (void)left; (void)right; (void)type; } void audiohw_set_monitor(bool enable) { (void)enable; } #endif /* HAVE_RECORDING */