/*************************************************************************** * __________ __ ___. * Open \______ \ ____ ____ | | _\_ |__ _______ ___ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ * \/ \/ \/ \/ \/ * * 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 */