3fffff90e2
- Fix broken recording from jack microphone. - Fix recording hardware detection on models that do not support the jack microphone. - Enable monitor mode when recording. Change-Id: Ib79a2746f2d75f74cf6667d33bc9ed6512bbc8a9
139 lines
3.8 KiB
C
139 lines
3.8 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: audio-nano2g.c 23095 2009-10-11 09:17:12Z dave $
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*
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* Copyright (C) 2006 by Michael Sevakis
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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 "system.h"
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#include "cpu.h"
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#include "audio.h"
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#include "sound.h"
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#include "pmu-target.h"
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#include "i2c-s5l8702.h"
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extern int rec_hw_ver;
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/* Mikey is the internal controller for jack microphone and/or
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* remote accessories.
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* TODO:
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* - move to mikey-6g.c
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* - detect jack accessory
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* - support for remote buttons
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*/
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unsigned char mikey_read(int address)
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{
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unsigned char val;
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i2c_read(0, 0x72, address, 1, &val);
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return val;
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}
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int mikey_write(int address, unsigned char val)
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{
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return i2c_write(0, 0x72, address, 1, &val);
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}
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void mikey_reset(void)
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{
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mikey_write(0, 5);
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mikey_write(1, 0x80);
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}
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#if INPUT_SRC_CAPS != 0
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#ifdef HAVE_RECORDING
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void audio_enable_mic(bool enable)
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{
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if (rec_hw_ver == 0)
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return;
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if (enable)
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{
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mikey_write(0, 7); /* raise voltage to polarize microphone */
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GPIOCMD = 0xe070f; /* enable preamp */
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}
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else
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{
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mikey_reset(); /* microphone line voltage = 0 */
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GPIOCMD = 0xe070e; /* disable preamp */
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}
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}
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#endif
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void audio_set_output_source(int source)
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{
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if ((unsigned)source >= AUDIO_NUM_SOURCES)
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source = AUDIO_SRC_PLAYBACK;
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} /* audio_set_output_source */
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void audio_input_mux(int source, unsigned flags)
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{
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(void)flags;
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/* Prevent pops from unneeded switching */
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static int last_source = AUDIO_SRC_PLAYBACK;
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switch (source)
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{
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default: /* playback - no recording */
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source = AUDIO_SRC_PLAYBACK;
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case AUDIO_SRC_PLAYBACK:
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#ifdef HAVE_RECORDING
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if (source != last_source)
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{
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audiohw_set_monitor(false);
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audiohw_disable_recording();
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/* Vcodec = 1800mV (900mV + value*100mV) */
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pmu_ldo_set_voltage(3, 0x9);
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audio_enable_mic(false);
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}
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#endif
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break;
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#ifdef HAVE_MIC_REC
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case AUDIO_SRC_MIC: /* recording only */
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if (source != last_source)
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{
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audio_enable_mic(true);
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/* Vcodec = 2400mV (900mV + value*100mV) */
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pmu_ldo_set_voltage(3, 0xf);
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audiohw_set_monitor(true);
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audiohw_enable_recording(true); /* source mic */
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}
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break;
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#endif
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#ifdef HAVE_LINE_REC
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case AUDIO_SRC_LINEIN: /* recording only */
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if (source != last_source)
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{
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audio_enable_mic(false);
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/* Vcodec = 2400mV (900mV + value*100mV) */
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pmu_ldo_set_voltage(3, 0xf);
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audiohw_set_monitor(true);
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audiohw_enable_recording(false); /* source line */
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}
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break;
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#endif
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} /* end switch */
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last_source = source;
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} /* audio_input_mux */
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#endif /* INPUT_SRC_CAPS != 0 */
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