rockbox/firmware/drivers/audio/imx233-codec.c
Amaury Pouly c4f2a46e0d imx233: revert volumes to 1dB resolution
Using a better resolution causes havoc in the user interface
because it doesn't properly handle steps and people start to
believe I am responsible for all this mess.

Change-Id: I02b68dce5802692efde3da226eeeb49e4995f97a
2013-07-23 14:12:08 +02:00

103 lines
3 KiB
C

/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2011 by Amaury Pouly
*
* 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 "audiohw.h"
#include "audio.h"
#include "audioout-imx233.h"
#include "audioin-imx233.h"
#include "audio-imx233.h"
void audiohw_preinit(void)
{
imx233_audioout_preinit();
imx233_audioin_preinit();
imx233_audio_preinit();
}
void audiohw_postinit(void)
{
imx233_audioout_postinit();
imx233_audioin_postinit();
imx233_audio_postinit();
}
void audiohw_close(void)
{
imx233_audioout_close();
imx233_audioin_close();
}
/* volume in centibels */
void audiohw_set_volume(int vol_l, int vol_r)
{
imx233_audioout_set_hp_vol(vol_l / 5, vol_r / 5);
}
void audiohw_set_frequency(int fsel)
{
imx233_audioout_set_freq(fsel);
}
void audiohw_enable_recording(bool source_mic)
{
imx233_audioin_open();
/* if source is microhpone we need to power the microphone too */
imx233_audioin_enable_mic(source_mic);
int src = source_mic ? AUDIOIN_SELECT_MICROPHONE : AUDIOIN_SELECT_LINE1;
imx233_audioin_select_mux_input(false, src);
imx233_audioin_select_mux_input(true, src);
}
void audiohw_disable_recording(void)
{
imx233_audioin_close();
}
/* volume in centibels */
void audiohw_set_recvol(int left, int right, int type)
{
left /= 5;
right /= 5;
if(type == AUDIO_GAIN_LINEIN)
{
imx233_audioin_set_vol(false, left, AUDIOIN_SELECT_LINE1);
imx233_audioin_set_vol(true, right, AUDIOIN_SELECT_LINE1);
imx233_audioin_set_vol(false, left, AUDIOIN_SELECT_LINE2);
imx233_audioin_set_vol(true, right, AUDIOIN_SELECT_LINE2);
imx233_audioin_set_vol(false, left, AUDIOIN_SELECT_HEADPHONE);
imx233_audioin_set_vol(true, right, AUDIOIN_SELECT_HEADPHONE);
}
else
imx233_audioin_set_vol(false, left, AUDIOIN_SELECT_MICROPHONE);
}
void audiohw_set_depth_3d(int val)
{
/* input is raw value ranging from 0dB to 6dB in tenth of dB
* convert to value in 1.5dB steps */
imx233_audioout_set_3d_effect(val / 15);
}
void audiohw_set_monitor(bool enable)
{
imx233_audioout_select_hp_input(enable);
}