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TDA7418 3 Band car audio processor - driver

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silelis

Joined: 12 Jun 2007
Posts: 68
Location: Poland, podlaskie district

TDA7418 3 Band car audio processor - driver

Posted: Thu Sep 29, 2016 5:01 am

Hello,

I am working on some car receiver and one of the devices is TDA7418.

Bellow I post my hardware source code.

file: TDA7418.h

Code:

/**************************************************************************/
/*!
@file TDA7418.h
@author D. Bankowski (d.bankowski@gmail.com)

@brief Driver for the TDA7418 radio equaliser.
@section LICENSE
Software License Agreement (BSD License)
Copyright (c) 2015, D. Bankowski
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. Neither the name of the copyright holders nor the
names of its contributors may be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**************************************************************************/

#ifndef _TDA7418_
#define _TDA7418_

/*=========================================================================
I2C ADDRESS/BITS
-----------------------------------------------------------------------*/
#define TDA7418_ADDRESS_Write (0x88) // 1 0 0 0 1 0 0 R/W
// R/W = 1 write address
// R/W = 0 read address
#define TDA7418_ADDRESS_Read (0x89)
/*=========================================================================*/

/*=========================================================================
TDA7418 - Subaddress (receive mode)
-----------------------------------------------------------------------*/

#define TDA7418_SubAddr_Testing_Mode_ON 0b10000000
#define TDA7418_SubAddr_Testing_Mode_OFF 0b00000000
#define TDA7418_SubAddr_Auto_Zero_Remain_ON 0b01000000
#define TDA7418_SubAddr_Auto_Zero_Remain_OFF 0b00000000
#define TDA7418_SubAddr_Auto_Increment_Mode_ON 0b00100000
#define TDA7418_SubAddr_Auto_Increment_Mode_OFF 0b00000000
#define TDA7418_SubAddr_Src 0x0 //Main Source Selector
#define TDA7418_SubAddr_Loud 0x01 //Loudness
#define TDA7418_SubAddr_Vol 0x02 //Volume
#define TDA7418_SubAddr_Tre 0x03 //Treble
#define TDA7418_SubAddr_Mid 0x04 //Middle
#define TDA7418_SubAddr_Bas 0x05 //Bass
#define TDA7418_SubAddr_FC 0x06 //Middle/Bass Fc Selector
#define TDA7418_SubAddr_LF 0x07 //Speaker Attenuator Left Front
#define TDA7418_SubAddr_LR 0x08 //Speaker Attenuator Left Right
#define TDA7418_SubAddr_RR 0x09 //Speaker Attenuator Right Rear
#define TDA7418_SubAddr_RF 0x0A //Speaker Attenuator Right Front
#define TDA7418_SubAddr_SW 0x0B //Subwoofer Attenuator
#define TDA7418_SubAddr_Soft_Mute 0x0C //Soft Mute / Soft Step
#define TDA7418_SubAddr_Test_Processor 0x0D //Testing Audio Processor
/*=========================================================================*/

/*=========================================================================
TDA7418 - Input selector /gain (0) - TDA7418_SubAddr_Src
-----------------------------------------------------------------------*/
/* bits 2 to 0 */

#define TDA7418_INPUT_PD_SE4 0x00 //Source Selector PD/SE4
#define TDA7418_INPUT_SE1 0x01 //Source Selector SE1
#define TDA7418_INPUT_SE2 0x02 //Source Selector SE2
#define TDA7418_INPUT_SE3 0x03 //Source Selector SE3
#define TDA7418_INPUT_MUTE 0x04 //Source Selector SE3
/* bits 2 to 0 */

/* bits 6 to 3 */
#define TDA7418_INPUT_GAIN_0dB (0x0<<3) //Input Gain 0dB
#define TDA7418_INPUT_GAIN_1dB (0x1<<3) //Input Gain 1dB
#define TDA7418_INPUT_GAIN_2dB (0x2<<3) //Input Gain 2dB
#define TDA7418_INPUT_GAIN_3dB (0x3<<3) //Input Gain 3dB
#define TDA7418_INPUT_GAIN_4dB (0x4<<3) //Input Gain 4dB
#define TDA7418_INPUT_GAIN_5dB (0x5<<3) //Input Gain 5dB
#define TDA7418_INPUT_GAIN_6dB (0x6<<3) //Input Gain 6dB
#define TDA7418_INPUT_GAIN_7dB (0x7<<3) //Input Gain 7dB
#define TDA7418_INPUT_GAIN_8dB (0x8<<3) //Input Gain 8dB
#define TDA7418_INPUT_GAIN_9dB (0x9<<3) //Input Gain 9dB
#define TDA7418_INPUT_GAIN_10dB (0xA<<3) //Input Gain 10dB
#define TDA7418_INPUT_GAIN_11dB (0xB<<3) //Input Gain 11dB
#define TDA7418_INPUT_GAIN_12dB (0xC<<3) //Input Gain 12dB
#define TDA7418_INPUT_GAIN_13dB (0xD<<3) //Input Gain 13dB
#define TDA7418_INPUT_GAIN_14dB (0xE<<3) //Input Gain 14dB
#define TDA7418_INPUT_GAIN_15dB (0xF<<3) //Input Gain 15dB
/* bits 6 to 3 */

/* bits 7 */
#define TDA7418_DIFFIN_MODE_SINGLE (0<<7) //Single Ended Stereo
#define TDA7418_DIFFIN_MODE_DIFFERENTIAL (1<<7) //Differential Stereo
/* bits 7 */
/*=========================================================================*/

/*=========================================================================
TDA7418 - Loudness (1) - TDA7418_SubAddr_Loud
-----------------------------------------------------------------------*/
/* bits 3 to 0 */
#define TDA7418_ATTENUATION_0dB (0x0) //Input Gain 0dB
#define TDA7418_ATTENUATION_1dB (0x1) //Input Gain -1dB
#define TDA7418_ATTENUATION_2dB (0x2) //Input Gain -2dB
#define TDA7418_ATTENUATION_3dB (0x3) //Input Gain -3dB
#define TDA7418_ATTENUATION_4dB (0x4) //Input Gain -4dB
#define TDA7418_ATTENUATION_5dB (0x5) //Input Gain -5dB
#define TDA7418_ATTENUATION_6dB (0x6) //Input Gain -6dB
#define TDA7418_ATTENUATION_7dB (0x7) //Input Gain -7dB
#define TDA7418_ATTENUATION_8dB (0x8) //Input Gain -8dB
#define TDA7418_ATTENUATION_9dB (0x9) //Input Gain -9dB
#define TDA7418_ATTENUATION_10dB (0xA) //Input Gain -10dB
#define TDA7418_ATTENUATION_11dB (0xB) //Input Gain -11dB
#define TDA7418_ATTENUATION_12dB (0xC) //Input Gain -12dB
#define TDA7418_ATTENUATION_13dB (0xD) //Input Gain -13dB
#define TDA7418_ATTENUATION_14dB (0xE) //Input Gain -14dB
#define TDA7418_ATTENUATION_15dB (0xF) //Input Gain -15dB
/* bits 3 to 0 */

/* bits 5 to 4 */
//#define TDA7418_CENTER_FREQ_OFF //choose on of thise
#define TDA7418_CENTER_FREQ_400 //choose on of thise
//#define TDA7418_CENTER_FREQ_800 //choose on of thise
//#define TDA7418_CENTER_FREQ_2400 //choose on of thise

#ifdef TDA7418_CENTER_FREQ_OFF
#define TDA7418_CENTER_FREQ 0b00000000 //Filter/Center Frequency OFF
#endif

#ifdef TDA7418_CENTER_FREQ_400
#define TDA7418_CENTER_FREQ 0b00010000 //Filter/Center Frequency 400Hz
#endif

#ifdef TDA7418_CENTER_FREQ_800
#define TDA7418_CENTER_FREQ 0b00100000 //Filter/Center Frequency 800Hz
#endif

#ifdef TDA7418_CENTER_FREQ_2400
#define TDA7418_CENTER_FREQ 0b00110000 //Filter/Center Frequency 2400Hz
#endif

/* bits 5 to 4 */

/* bits 6 */
#define TDA7418_SHAPE_LOW_BOOST 0b0000000 //Shape Low Boost
#define TDA7418_SHAPE_LOW_HIGH_BOOST 0b0100000 //Shape Low Boost & HighBoost
/* bits 6 */

/* bits 7 */
#define TDA7418_LOUDNESS_SOFT_STEF_ON 0b00000000 //Loudness Soft Step ON
#define TDA7418_LOUDNESS_SOFT_STEF_OFF 0b10000000 //Loudness Soft Step OFF
/* bits 7 */
/*=========================================================================*/

/*=========================================================================
TDA7418 - Volume / speaker attenuation (2,7,8,9,10,11) - TDA7418_SubAddr_Vol,
TDA7418_SubAddr_LF, TDA7418_SubAddr_LR, TDA7418_SubAddr_RR,
TDA7418_SubAddr_RF, TDA7418_SubAddr_SW
-----------------------------------------------------------------------*/
/* bits 6 to 0 */
// see const int8 AUDIO_volume_attenuation[41] - in TDA7418.c
/* bits 6 to 0 */

/* bits 7 */

#define TDA7418_VOLUME_SOFT_STEP_ON // use one of TDA7418_VOLUME_SOFT_STEP_ON or TDA7418_VOLUME_SOFT_STEP_OFF
//#define TDA7418_VOLUME_SOFT_STEP_OFF // use one of TDA7418_VOLUME_SOFT_STEP_ON or TDA7418_VOLUME_SOFT_STEP_OFF

#ifdef TDA7418_VOLUME_SOFT_STEP_ON
#define TDA7418_VOLUME_SOFT_STEP 0b00000000
#endif

#ifdef TDA7418_VOLUME_SOFT_STEP_OFF
#define TDA7418_VOLUME_SOFT_STEP 0b10000000
#endif
/* bits 7 */
/*=========================================================================*/

/*=========================================================================
TDA7418 - Treble filter (3) - TDA7418_SubAddr_Tre
-----------------------------------------------------------------------*/
/* bits 4 to 0 */
// see const int8 AUDIO_Treble_Middle_Bass[31] - in TDA7418.c
/* bits 4 to 0 */

/* bits 6 to 5*/

//#define TDA7418_TREBLE_CENTRAL_FREQUENCY_10_0kHz // use one of TDA7418_TREBLE_CENTRAL_FREQUENCY_10_0kHz or TDA7418_TREBLE_CENTRAL_FREQUENCY_12_5kHz or TDA7418_TREBLE_CENTRAL_FREQUENCY_15_0kHz or TDA7418_TREBLE_CENTRAL_FREQUENCY_17_5kHz
#define TDA7418_TREBLE_CENTRAL_FREQUENCY_12_5kHz // use one of TDA7418_TREBLE_CENTRAL_FREQUENCY_10_0kHz or TDA7418_TREBLE_CENTRAL_FREQUENCY_12_5kHz or TDA7418_TREBLE_CENTRAL_FREQUENCY_15_0kHz or TDA7418_TREBLE_CENTRAL_FREQUENCY_17_5kHz
//#define TDA7418_TREBLE_CENTRAL_FREQUENCY_15_0kHz // use one of TDA7418_TREBLE_CENTRAL_FREQUENCY_10_0kHz or TDA7418_TREBLE_CENTRAL_FREQUENCY_12_5kHz or TDA7418_TREBLE_CENTRAL_FREQUENCY_15_0kHz or TDA7418_TREBLE_CENTRAL_FREQUENCY_17_5kHz
//#define TDA7418_TREBLE_CENTRAL_FREQUENCY_17_5kHz // use one of TDA7418_TREBLE_CENTRAL_FREQUENCY_10_0kHz or TDA7418_TREBLE_CENTRAL_FREQUENCY_12_5kHz or TDA7418_TREBLE_CENTRAL_FREQUENCY_15_0kHz or TDA7418_TREBLE_CENTRAL_FREQUENCY_17_5kHz

#ifdef TDA7418_TREBLE_CENTRAL_FREQUENCY_10_0kHz
#define TDA7418_TREBLE_CENTRAL_FREQUENCY 0b00000000
#endif
#ifdef TDA7418_TREBLE_CENTRAL_FREQUENCY_12_5kHz
#define TDA7418_TREBLE_CENTRAL_FREQUENCY 0b00100000
#endif
#ifdef TDA7418_TREBLE_CENTRAL_FREQUENCY_15_0kHz
#define TDA7418_TREBLE_CENTRAL_FREQUENCY 0b01000000
#endif
#ifdef TDA7418_TREBLE_CENTRAL_FREQUENCY_17_5kHz
#define TDA7418_TREBLE_CENTRAL_FREQUENCY 0b01100000
#endif
/* bits 6 to 5*/

/* bits 7*/
#define TDA7418_TREBLE_BIT7 0b10000000 //must "be" 1
/* bits 7*/
/*=========================================================================*/

/*=========================================================================
TDA7418 - Middle filter (4) - TDA7418_SubAddr_Mid
-----------------------------------------------------------------------*/
/* bits 4 to 0 */
// see const int8 AUDIO_Treble_Middle_Bass[31] - in TDA7418.c
/* bits 4 to 0 */

/* bits 6 to 5*/
//#define TDA7418_MIDDLE_Q_FACTOR_0_5 // use one of TDA7418_MIDDLE_Q_FACTOR_0_5 or TDA7418_MIDDLE_Q_FACTOR_0_75 or TDA7418_MIDDLE_Q_FACTOR_1 or TDA7418_MIDDLE_Q_FACTOR_1_25
//#define TDA7418_MIDDLE_Q_FACTOR_0_75 // use one of TDA7418_MIDDLE_Q_FACTOR_0_5 or TDA7418_MIDDLE_Q_FACTOR_0_75 or TDA7418_MIDDLE_Q_FACTOR_1 or TDA7418_MIDDLE_Q_FACTOR_1_25
#define TDA7418_MIDDLE_Q_FACTOR_1 // use one of TDA7418_MIDDLE_Q_FACTOR_0_5 or TDA7418_MIDDLE_Q_FACTOR_0_75 or TDA7418_MIDDLE_Q_FACTOR_1 or TDA7418_MIDDLE_Q_FACTOR_1_25
//#define TDA7418_MIDDLE_Q_FACTOR_1_25 // use one of TDA7418_MIDDLE_Q_FACTOR_0_5 or TDA7418_MIDDLE_Q_FACTOR_0_75 or TDA7418_MIDDLE_Q_FACTOR_1 or TDA7418_MIDDLE_Q_FACTOR_1_25

#ifdef TDA7418_MIDDLE_Q_FACTOR_0_5
#define TDA7418_MIDDLE_Q_FACTOR 0b00000000
#endif
#ifdef TDA7418_MIDDLE_Q_FACTOR_0_75
#define TDA7418_MIDDLE_Q_FACTOR 0b0100000
#endif
#ifdef TDA7418_MIDDLE_Q_FACTOR_1
#define TDA7418_MIDDLE_Q_FACTOR 0b01000000
#endif
#ifdef TDA7418_MIDDLE_Q_FACTOR_1_25
#define TDA7418_MIDDLE_Q_FACTOR 0b01100000
#endif
/* bits 6 to 5*/

/* bits 7*/
#define TDA7418_MIDDLE_SOFT_STEP_OFF // use one of TDA7418_MIDDLE_SOFT_STEP_OFF or TDA7418_MIDDLE_SOFT_STEP_ON
//#define TDA7418_MIDDLE_SOFT_STEP_ON

#ifdef TDA7418_MIDDLE_SOFT_STEP_ON
#define TDA7418_MIDDLE_SOFT_STEP 0b00000000
#endif

#ifdef TDA7418_MIDDLE_SOFT_STEP_OFF
#define TDA7418_MIDDLE_SOFT_STEP 0b10000000
#endif
/* bits 7*/
/*=========================================================================*/

/*=========================================================================
TDA7418 - Middle / bass Fc select (6) - TDA7418_SubAddr_Bas
-----------------------------------------------------------------------*/
/* bits 4 to 0 */
// see const int8 AUDIO_Treble_Middle_Bass[31] - in TDA7418.c
/* bits 4 to 0 */

/* bits 6 to 5*/
#define TDA7418_BASS_Q_FACTOR_1_0 // use one of TDA7418_Bass_Q_FACTOR_1_0 or TDA7418_Bass_Q_FACTOR_1_25 or DA7418_Bass_Q_FACTOR_1_5 or TDA7418_Bass_Q_FACTOR_2_0
//#define TDA7418_BASS_Q_FACTOR_1_25 // use one of TDA7418_Bass_Q_FACTOR_1_0 or TDA7418_Bass_Q_FACTOR_1_25 or DA7418_Bass_Q_FACTOR_1_5 or TDA7418_Bass_Q_FACTOR_2_0
//#define TDA7418_BASS_Q_FACTOR_1_5 // use one of TDA7418_Bass_Q_FACTOR_1_0 or TDA7418_Bass_Q_FACTOR_1_25 or DA7418_Bass_Q_FACTOR_1_5 or TDA7418_Bass_Q_FACTOR_2_0
//#define TDA7418_BASS_Q_FACTOR_2_0 // use one of TDA7418_Bass_Q_FACTOR_1_0 or TDA7418_Bass_Q_FACTOR_1_25 or DA7418_Bass_Q_FACTOR_1_5 or TDA7418_Bass_Q_FACTOR_2_0

#ifdef TDA7418_BASS_Q_FACTOR_1_0
#define TDA7418_BASS_Q_FACTOR 0b00000000
#endif
#ifdef TDA7418_BASS_Q_FACTOR_1_25
#define TDA7418_BASS_Q_FACTOR 0b00100000
#endif
#ifdef TDA7418_Bass_Q_FACTOR_1_5
#define TDA7418_BASS_Q_FACTOR 0b01000000
#endif
#ifdef TDA7418_BASS_Q_FACTOR_2_0
#define TDA7418_BASS_Q_FACTOR 0b01100000
#endif
/* bits 6 to 5*/

/* bits 7*/
#define TDA7418_BASS_SOFT_STEP_OFF // use one of TDA7418_BASS_SOFT_STEP_OFF or TDA7418_BASS_SOFT_STEP_ON
//#define TDA7418_BASS_SOFT_STEP_ON
#ifdef TDA7418_BASS_SOFT_STEP_OFF
#define TDA7418_BASS_SOFT_STEP 0b10000000
#endif
#ifdef TDA7418_BASS_SOFT_STEP_ON
#define TDA7418_BASS_SOFT_STEP 0b00000000
#endif
/* bits 7*/
/*=========================================================================*/

/*=========================================================================
TDA7418 - Bass filter (5) - TDA7418_SubAddr_FC
-----------------------------------------------------------------------*/
/* bits 1 to 0 */
//#define TDA7418_MIDDLE_CENTER_FREQUENCY_500Hz // use one of TDA7418_MIDDLE_CENTER_FREQUENCY_500Hz or TDA7418_MIDDLE_CENTER_FREQUENCY_1kHz or TDA7418_MIDDLE_CENTER_FREQUENCY_1_5kHz or TDA7418_MIDDLE_CENTER_FREQUENCY_2_5kHz
//#define TDA7418_MIDDLE_CENTER_FREQUENCY_1kHz // use one of TDA7418_MIDDLE_CENTER_FREQUENCY_500Hz or TDA7418_MIDDLE_CENTER_FREQUENCY_1kHz or TDA7418_MIDDLE_CENTER_FREQUENCY_1_5kHz or TDA7418_MIDDLE_CENTER_FREQUENCY_2_5kHz
#define TDA7418_MIDDLE_CENTER_FREQUENCY_1_5kHz // use one of TDA7418_MIDDLE_CENTER_FREQUENCY_500Hz or TDA7418_MIDDLE_CENTER_FREQUENCY_1kHz or TDA7418_MIDDLE_CENTER_FREQUENCY_1_5kHz or TDA7418_MIDDLE_CENTER_FREQUENCY_2_5kHz
//#define TDA7418_MIDDLE_CENTER_FREQUENCY_2_5kHz // use one of TDA7418_MIDDLE_CENTER_FREQUENCY_500Hz or TDA7418_MIDDLE_CENTER_FREQUENCY_1kHz or TDA7418_MIDDLE_CENTER_FREQUENCY_1_5kHz or TDA7418_MIDDLE_CENTER_FREQUENCY_2_5kHz

#ifdef TDA7418_MIDDLE_CENTER_FREQUENCY_500Hz
#define TDA7418_MIDDLE_CENTER_FREQUENCY 0b00000000
#endif
#ifdef TDA7418_MIDDLE_CENTER_FREQUENCY_1kHz
#define TDA7418_MIDDLE_CENTER_FREQUENCY 0b00000001
#endif
#ifdef TDA7418_MIDDLE_CENTER_FREQUENCY_1_5kHz
#define TDA7418_MIDDLE_CENTER_FREQUENCY 0b00000010
#endif
#ifdef TDA7418_MIDDLE_CENTER_FREQUENCY_2_5kHz
#define TDA7418_MIDDLE_CENTER_FREQUENCY 0b00000011
#endif
/* bits 1 to 0 */

/* bits 3 to 2 */
//#define TDA7418_BASS_CENTER_FREQUENCY_60Hz // use one of TDA7418_BASS_CENTER_FREQUENCY_60Hz or TDA7418_BASS_CENTER_FREQUENCY_80Hz or TDA7418_BASS_CENTER_FREQUENCY_100Hz or TDA7418_BASS_CENTER_FREQUENCY_200Hz
//#define TDA7418_BASS_CENTER_FREQUENCY_80Hz // use one of TDA7418_BASS_CENTER_FREQUENCY_60Hz or TDA7418_BASS_CENTER_FREQUENCY_80Hz or TDA7418_BASS_CENTER_FREQUENCY_100Hz or TDA7418_BASS_CENTER_FREQUENCY_200Hz
//#define TDA7418_BASS_CENTER_FREQUENCY_100Hz // use one of TDA7418_BASS_CENTER_FREQUENCY_60Hz or TDA7418_BASS_CENTER_FREQUENCY_80Hz or TDA7418_BASS_CENTER_FREQUENCY_100Hz or TDA7418_BASS_CENTER_FREQUENCY_200Hz
#define TDA7418_BASS_CENTER_FREQUENCY_200Hz // use one of TDA7418_BASS_CENTER_FREQUENCY_60Hz or TDA7418_BASS_CENTER_FREQUENCY_80Hz or TDA7418_BASS_CENTER_FREQUENCY_100Hz or TDA7418_BASS_CENTER_FREQUENCY_200Hz

#ifdef TDA7418_BASS_CENTER_FREQUENCY_60Hz
#define TDA7418_BASS_CENTER_FREQUENCY 0b00000000
#endif
#ifdef TDA7418_BASS_CENTER_FREQUENCY_80Hz
#define TDA7418_BASS_CENTER_FREQUENCY 0b00000100
#endif
#ifdef TDA7418_BASS_CENTER_FREQUENCY_100Hz
#define TDA7418_BASS_CENTER_FREQUENCY 0b00001000
#endif
#ifdef TDA7418_BASS_CENTER_FREQUENCY_200Hz
#define TDA7418_BASS_CENTER_FREQUENCY 0b00001100
#endif
/* bits 3 to 2 */

/* bits 4 to 4 */
#define TDA7418_BASS_DC_MODE_OFF // use one of TDA7418_BASS_DC_MODE_OFF or TDA7418_BASS_DC_MODE_ON
//#define TDA7418_BASS_DC_MODE_ON // use one of TDA7418_BASS_DC_MODE_OFF or TDA7418_BASS_DC_MODE_ON

#ifdef TDA7418_BASS_DC_MODE_OFF
#define TDA7418_BASS_DC_MODE 0b00000000
#endif
#ifdef TDA7418_BASS_DC_MODE_ON
#define TDA7418_BASS_DC_MODE 0b00010000
#endif
/* bits 4 to 4 */

/* bits 5 to 5 */
#define TDA7418_SMOOTHING_FILTER_OFF // use one of TDA7418_SMOOTHING_FILTER_OFF or TDA7418_SMOOTHING_FILTER_ON
//#define TDA7418_SMOOTHING_FILTER_ON // use one of TDA7418_SMOOTHING_FILTER_OFF or TDA7418_SMOOTHING_FILTER_ON

#ifdef TDA7418_SMOOTHING_FILTER_OFF
#define TDA7418_SMOOTHING_FILTER 0b00000000
#endif
#ifdef TDA7418_SMOOTHING_FILTER_ON
#define TDA7418_SMOOTHING_FILTER 0b00100000
#endif
/* bits 5 to 5 */

/* bits 7 to 6 */
// any value is possible bits not used
/* bits 7 to 6 */
/*=========================================================================*/

/*=========================================================================
TDA7418 - Soft mute and soft step time (12) - TDA7418_SubAddr_Soft_Mute
-----------------------------------------------------------------------*/
/* bits 0 to 0 */
//#define TDA7418_SOFT_MUTE_OFF // use one of TDA7418_SOFT_MUTE_OFF or TDA7418_SOFT_MUTE_ON
#define TDA7418_SOFT_MUTE_ON // use one of TDA7418_SOFT_MUTE_OFF or TDA7418_SOFT_MUTE_ON

#ifdef TDA7418_SOFT_MUTE_OFF
#define TDA7418_SOFT_MUTE 0b00000000
#endif
#ifdef TDA7418_SOFT_MUTE_ON
#define TDA7418_SOFT_MUTE 0b00000001
#endif
/* bits 0 to 0 */

/* bits 2 to 1 */
//#define TDA7418_SOFT_MUTE_TIME_0_48ms // use one of TDA7418_SOFT_MUTE_TIME_0_48ms or TDA7418_SOFT_MUTE_TIME_0_96ms or TDA7418_SOFT_MUTE_TIME_123ms
//#define TDA7418_SOFT_MUTE_TIME_0_96ms // use one of TDA7418_SOFT_MUTE_TIME_0_48ms or TDA7418_SOFT_MUTE_TIME_0_96ms or TDA7418_SOFT_MUTE_TIME_123ms
#define TDA7418_SOFT_MUTE_TIME_123ms // use one of TDA7418_SOFT_MUTE_TIME_0_48ms or TDA7418_SOFT_MUTE_TIME_0_96ms or TDA7418_SOFT_MUTE_TIME_123ms

#ifdef TDA7418_SOFT_MUTE_TIME_0_48ms
#define TDA7418_SOFT_MUTE_TIME 0b00000000
#endif
#ifdef TDA7418_SOFT_MUTE_TIME_0_96ms
#define TDA7418_SOFT_MUTE_TIME 0b00000010
#endif
#ifdef TDA7418_SOFT_MUTE_TIME_123ms
#define TDA7418_SOFT_MUTE_TIME 0b00000100
#endif
/* bits 2 to 1 */

/* bits 5 to 3 */
//#define TDA7418_SOFT_STEP_TIME_0_16ms // use one of TDA7418_SOFT_STEP_TIME_0_16ms or TDA7418_SOFT_STEP_TIME_0_32ms ... TDA7418_SOFT_STEP_TIME_10_24ms or TDA7418_SOFT_STEP_TIME_20_48ms
#define TDA7418_SOFT_STEP_TIME_0_32ms // use one of TDA7418_SOFT_STEP_TIME_0_16ms or TDA7418_SOFT_STEP_TIME_0_32ms ... TDA7418_SOFT_STEP_TIME_10_24ms or TDA7418_SOFT_STEP_TIME_20_48ms
//#define TDA7418_SOFT_STEP_TIME_0_64ms // use one of TDA7418_SOFT_STEP_TIME_0_16ms or TDA7418_SOFT_STEP_TIME_0_32ms ... TDA7418_SOFT_STEP_TIME_10_24ms or TDA7418_SOFT_STEP_TIME_20_48ms
//#define TDA7418_SOFT_STEP_TIME_1_28ms // use one of TDA7418_SOFT_STEP_TIME_0_16ms or TDA7418_SOFT_STEP_TIME_0_32ms ... TDA7418_SOFT_STEP_TIME_10_24ms or TDA7418_SOFT_STEP_TIME_20_48ms
//#define TDA7418_SOFT_STEP_TIME_2_56ms // use one of TDA7418_SOFT_STEP_TIME_0_16ms or TDA7418_SOFT_STEP_TIME_0_32ms ... TDA7418_SOFT_STEP_TIME_10_24ms or TDA7418_SOFT_STEP_TIME_20_48ms
//#define TDA7418_SOFT_STEP_TIME_5_12ms // use one of TDA7418_SOFT_STEP_TIME_0_16ms or TDA7418_SOFT_STEP_TIME_0_32ms ... TDA7418_SOFT_STEP_TIME_10_24ms or TDA7418_SOFT_STEP_TIME_20_48ms
//#define TDA7418_SOFT_STEP_TIME_10_24ms // use one of TDA7418_SOFT_STEP_TIME_0_16ms or TDA7418_SOFT_STEP_TIME_0_32ms ... TDA7418_SOFT_STEP_TIME_10_24ms or TDA7418_SOFT_STEP_TIME_20_48ms
//#define TDA7418_SOFT_STEP_TIME_20_48ms // use one of TDA7418_SOFT_STEP_TIME_0_16ms or TDA7418_SOFT_STEP_TIME_0_32ms ... TDA7418_SOFT_STEP_TIME_10_24ms or TDA7418_SOFT_STEP_TIME_20_48ms

#ifdef TDA7418_SOFT_STEP_TIME_0_16ms
#define TDA7418_SOFT_STEP_TIME 0b00000000
#endif
#ifdef TDA7418_SOFT_STEP_TIME_0_32ms
#define TDA7418_SOFT_STEP_TIME 0b00001000
#endif
#ifdef TDA7418_SOFT_STEP_TIME_0_64ms
#define TDA7418_SOFT_STEP_TIME 0b00010000
#endif
#ifdef TDA7418_SOFT_STEP_TIME_1_28ms
#define TDA7418_SOFT_STEP_TIME 0b00011000
#endif
#ifdef TDA7418_SOFT_STEP_TIME_2_56ms
#define TDA7418_SOFT_STEP_TIME 0b00100000
#endif
#ifdef TDA7418_SOFT_STEP_TIME_5_12ms
#define TDA7418_SOFT_STEP_TIME 0b00101000
#endif
#ifdef TDA7418_SOFT_STEP_TIME_10_24ms
#define TDA7418_SOFT_STEP_TIME 0b00110000
#endif
#ifdef TDA7418_SOFT_STEP_TIME_20_48ms
#define TDA7418_SOFT_STEP_TIME 0b00111000
#endif
/* bits 5 to 3 */

/* bits 6 to 6 */
#define TDA7418_AZ_FUNCTION_OFF // use one of TDA7418_AZ_FUNCTION_OFF or TDA7418_AZ_FUNCTION_ON
//#define TDA7418_AZ_FUNCTION_ON

#ifdef TDA7418_AZ_FUNCTION_OFF
#define TDA7418_AZ_FUNCTION 0b00000000
#endif
#ifdef TDA7418_AZ_FUNCTION_ON
#define TDA7418_AZ_FUNCTION 0b01000000
#endif
/* bits 6 to 6 */

/* bits 7 to 6 */
// any value is possible bits not used
/* bits 7 to 6 */
/*=========================================================================*/

/*=========================================================================
TDA7418 - Testing audio processor (13) - TDA7418_SubAddr_Test_Processor
-----------------------------------------------------------------------*/

/* bits 0 to 0 */
#define TDA7418_AUDIO_PROCESSOR_TESTING_MODE_OFF // TDA7418_AUDIO_PROCESSOR_TESTING_MODE_OFF = OPERATION MODE //use one of TDA7418_AUDIO_PROCESSOR_TESTING_MODE_OFF (OPERATION MODE) or TDA7418_AUDIO_PROCESSOR_TESTING_MODE_ON
//#define TDA7418_AUDIO_PROCESSOR_TESTING_MODE_ON // TDA7418_AUDIO_PROCESSOR_TESTING_MODE_OFF = OPERATION MODE //use one of TDA7418_AUDIO_PROCESSOR_TESTING_MODE_OFF (OPERATION MODE) or TDA7418_AUDIO_PROCESSOR_TESTING_MODE_ON

#ifdef TDA7418_AUDIO_PROCESSOR_TESTING_MODE_OFF
#define TDA7418_AUDIO_PROCESSOR_TESTING_MODE 0b00000000
#define TDA7418_AUDIO_PROCESSOR_OPERATIING_MODE 0b00000000
#endif
#ifdef TDA7418_AUDIO_PROCESSOR_TESTING_MODE_ON
#define TDA7418_AUDIO_PROCESSORT_TESTING_MODE 0b00000001
#endif
/* bits 0 to 0 */

//TODO: WRITE DEFINITIONS bits 7 to 1

void TDA7418_HardwareTest(); // The simplest hardware test routine - input: SE1
//void _TDA7418_i2cWritePrepare(); //use before i2c transmission
//void _TDA7418_i2cWriteExecute(); //use when i2c data is ready
void TDA7418__SelectInput(int8, int8); //set TDA7418 input, define input gain and Diffin mode
void TDA7418__Loudness (int8, int8);
//void _TDA7418__Volume_Speaker_Attenuation(int8, int8);
void TDA7418__Volume(int8);
void TDA7418__LeftFront(int8);
void TDA7418__LeftRear(int8);
void TDA7418__RightRear(int8);
void TDA7418__RightFront(int8);
void TDA7418__Subwoofer(int8);
void TDA7418__Treble(int8);
void TDA7418__Middle(int8);
void TDA7418__Bass(int8);
void TDA7418__Middle_Bass_Fc_Select(void);
void TDA7418_Soft_Mut_Step_Time(void);
void _TDA7418_Audio_Processor_Testing_Mode(int8,int8,int8,int8);
void TDA7418_Audio_Processor_Operating_Mode(void);
#endif

file: TDA7418.c

Code:

/**************************************************************************/
/*!
@file TDA7418.c
@author D. Bankowski (d.bankowski@gmail.com)

@brief Driver for the TDA7418 radio equaliser.
@section LICENSE
Software License Agreement (BSD License)
Copyright (c) 2015, D. Bankowski
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. Neither the name of the copyright holders nor the
names of its contributors may be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**************************************************************************/

#include </TDA7418.h>

#ifndef _I2C_ENGINE_
#include </core/I2C/I2C_Engine.c>
#endif

/*#ifndef _BIT_MATH_
#include </core/BIT_MATH/BIT_MATH.c>
#endif*/

extern volatile unsigned int8 MasterBuffer[I2C_BUFSIZE];
extern volatile unsigned int8 SlaveBuffer[I2C_BUFSIZE];
extern volatile unsigned int32 I2CReadLength;
extern volatile unsigned int32 I2CWriteLength;

const int8 AUDIO_volume_attenuation[41] = //To raczej powinno być symetrycznie
{
0x60 /* <-- MUTE*/, /*0x5F, 0x5D, 0x5B, 0x59, 0x57,*/ 0x55, 0x53, 0x51,
0x4F, 0x4D, 0x4B, 0x49, 0x47, 0x45, 0x43, 0x41,
0x3F, 0x3D, 0x3B, 0x39, 0x37, 0x35, 0x33, 0x31,
0x2F, 0x2D, 0x2B, 0x29, 0x27, 0x25, 0x23, 0x21,
0x1F, 0x1D, 0x1B, 0x19, 0x17, 0x15, 0x13, 0x11,/*idx_35 default*/
0x0 /* 0dB*/, 0x02, 0x04, 0x06, 0x08 /*, 0x0A, 0x0C, 0x0E*/
};

const int8 AUDIO_Loudness_attenuation[16] = // It should rather be symmetrical
{
0x0, 0x1, 0x2,0x3,0x4,0x5,0x6,0x7,0x8,0x9,0xA,0XB,0xC,0xD,0xE,0xF
};

const int8 AUDIO_Treble_Middle_Bass[31] = // It should rather be symmetrical
{
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0XB, 0x0C,
0x0D, 0x0E, 0x0F, 0x1E, 0x1D, 0x1C, 0x1B, 0x1A, 0x19, 0x18, 0x17, 0x16, 0x15,
0x14, 0x13, 0x12, 0x11, 0x10
};

void TDA7418_HardwareTest()
{
/* Simple hardware test. 1st input */
i2c_start();

i2c_write(0x88); // 'address
i2c_write(0x20); // 'REG0 AUTO INC
i2c_write(0x01); // '0-INPUT SELECTOR
i2c_write(0x80); // '1-LOUDNESS OFF
i2c_write(0x80); // '2-*VOLUME 0DB
i2c_write(0xCF); // '3-TREBLE CENTER 15KHZ, 0DB
i2c_write(0xCF); // '4-MIDDLE Q=1 0DB
i2c_write(0x8F); // '5-BASS Q=1 0DB
i2c_write(0x0E); // '6-BASS 200HZ MIDDLE 1,5KHZ
i2c_write(0xA0); // '7-* LEFT FRONT
i2c_write(0xA0); // '8-* LEFT REAR
i2c_write(0xA0); // '9-* RIGHT REAR
i2c_write(0xA0); // '10-* RIGHT FRONT
i2c_write(0x80); // '11-* SUBWOOFER
i2c_write(0x01); // '12-SOFT MUTE SOFT STEP OFF
i2c_write(0x00); // '13-IN OPERATION

i2c_stop();
}

void _TDA7418_i2cWritePrepare (void)
{
/* Prepare Transmission buffer to transmission*/
ClearBuffers(&MasterBuffer,I2C_BUFSIZE);
*(MasterBuffer) = TDA7418_ADDRESS_Write;
}

void _TDA7418_i2cWriteExecute(void)
{
/* I2Cengine write parameters setup */
I2CWriteLength = 3; //i2cEngine write information
I2CReadLength = 0; //i2cEngine read information
i2cEngine(); //write or read data depend of I2CWriteLength and I2CReadLength
}

void TDA7418__SelectInput (int8 input, int8 input_gain_dB_value)
{
_TDA7418_i2cWritePrepare();
MasterBuffer[1] = TDA7418_SubAddr_Testing_Mode_OFF|TDA7418_SubAddr_Auto_Zero_Remain_OFF|TDA7418_SubAddr_Auto_Increment_Mode_OFF|TDA7418_SubAddr_Src;
//MasterBuffer[2] = TDA7418_DIFFIN_MODE_DIFFERENTIAL|TDA7418_INPUT_GAIN_0dB|input;
MasterBuffer[2] = TDA7418_DIFFIN_MODE_DIFFERENTIAL|input_gain_dB_value|input;
_TDA7418_i2cWriteExecute();
}

void TDA7418__Loudness(int8 Loudness_dB_value, int8 Low_HighBoost)
{
_TDA7418_i2cWritePrepare();
MasterBuffer[1] = TDA7418_SubAddr_Testing_Mode_OFF|TDA7418_SubAddr_Auto_Zero_Remain_OFF|TDA7418_SubAddr_Auto_Increment_Mode_OFF|TDA7418_SubAddr_Loud;
MasterBuffer[2] = TDA7418_LOUDNESS_SOFT_STEF_OFF|Low_HighBoost|TDA7418_CENTER_FREQ|Loudness_dB_value;
_TDA7418_i2cWriteExecute();
}

void _TDA7418__Volume_Speaker_Attenuation(int8 Volume_dB_value, int8 Output_TDA7418_i2C_Addres)
{
_TDA7418_i2cWritePrepare();
MasterBuffer[1] = TDA7418_SubAddr_Testing_Mode_OFF|TDA7418_SubAddr_Auto_Zero_Remain_OFF|TDA7418_SubAddr_Auto_Increment_Mode_OFF|Output_TDA7418_i2C_Addres;
MasterBuffer[2] = TDA7418_VOLUME_SOFT_STEP|Volume_dB_value;
_TDA7418_i2cWriteExecute();
}

void TDA7418__Volume(int8 Volume_dB_value)
{
_TDA7418__Volume_Speaker_Attenuation(Volume_dB_value, TDA7418_SubAddr_Vol);
}

void TDA7418__LeftFront(int8 Volume_dB_value)
{
_TDA7418__Volume_Speaker_Attenuation(Volume_dB_value, TDA7418_SubAddr_LF);
}

void TDA7418__LeftRear(int8 Volume_dB_value)
{
_TDA7418__Volume_Speaker_Attenuation(Volume_dB_value, TDA7418_SubAddr_LR);
}

void TDA7418__RightRear(int8 Volume_dB_value)
{
_TDA7418__Volume_Speaker_Attenuation(Volume_dB_value, TDA7418_SubAddr_RR);
}

void TDA7418__RightFront(int8 Volume_dB_value)
{
_TDA7418__Volume_Speaker_Attenuation(Volume_dB_value, TDA7418_SubAddr_RF);
}

void TDA7418__Subwoofer(int8 Volume_dB_value)
{
_TDA7418__Volume_Speaker_Attenuation(Volume_dB_value, TDA7418_SubAddr_SW );
}
void TDA7418__Treble(int8 Treble_dB_value)
{
_TDA7418_i2cWritePrepare();
MasterBuffer[1] = TDA7418_SubAddr_Testing_Mode_OFF|TDA7418_SubAddr_Auto_Zero_Remain_OFF|TDA7418_SubAddr_Auto_Increment_Mode_OFF|TDA7418_SubAddr_Tre;
MasterBuffer[2] = TDA7418_TREBLE_BIT7|TDA7418_TREBLE_CENTRAL_FREQUENCY|Treble_dB_value;
_TDA7418_i2cWriteExecute();
}

void TDA7418__Middle(int8 Middle_dB_value)
{
_TDA7418_i2cWritePrepare();
MasterBuffer[1] = TDA7418_SubAddr_Testing_Mode_OFF|TDA7418_SubAddr_Auto_Zero_Remain_OFF|TDA7418_SubAddr_Auto_Increment_Mode_OFF|TDA7418_SubAddr_Mid;
MasterBuffer[2] = TDA7418_MIDDLE_SOFT_STEP|TDA7418_MIDDLE_Q_FACTOR|Middle_dB_value;
_TDA7418_i2cWriteExecute();
}

void TDA7418__Bass(int8 Bass_dB_value)
{
_TDA7418_i2cWritePrepare();
MasterBuffer[1] = TDA7418_SubAddr_Testing_Mode_OFF|TDA7418_SubAddr_Auto_Zero_Remain_OFF|TDA7418_SubAddr_Auto_Increment_Mode_OFF|TDA7418_SubAddr_Bas;
MasterBuffer[2] = TDA7418_BASS_SOFT_STEP|TDA7418_BASS_Q_FACTOR|Bass_dB_value;
_TDA7418_i2cWriteExecute();
}

void TDA7418__Middle_Bass_Fc_Select(void)
{
_TDA7418_i2cWritePrepare();
MasterBuffer[1] = TDA7418_SubAddr_Testing_Mode_OFF|TDA7418_SubAddr_Auto_Zero_Remain_OFF|TDA7418_SubAddr_Auto_Increment_Mode_OFF|TDA7418_SubAddr_FC;
MasterBuffer[2] = TDA7418_SMOOTHING_FILTER|TDA7418_BASS_DC_MODE|TDA7418_BASS_CENTER_FREQUENCY|TDA7418_MIDDLE_CENTER_FREQUENCY;
_TDA7418_i2cWriteExecute();
}

void TDA7418_Soft_Mut_Step_Time(void)
{
_TDA7418_i2cWritePrepare();
MasterBuffer[1] = TDA7418_SubAddr_Testing_Mode_OFF|TDA7418_SubAddr_Auto_Zero_Remain_OFF|TDA7418_SubAddr_Auto_Increment_Mode_OFF|TDA7418_SubAddr_Soft_Mute;
MasterBuffer[2] = TDA7418_SOFT_MUTE|TDA7418_SOFT_MUTE_TIME|TDA7418_SOFT_STEP_TIME|TDA7418_AZ_FUNCTION;
_TDA7418_i2cWriteExecute();
}

void _TDA7418_Audio_Processor_Testing_Mode(int8 mode, int8 miltiplekser, int8 SC_clock, int8 MUTE_Pin_Config)
{
_TDA7418_i2cWritePrepare();
MasterBuffer[1] = TDA7418_SubAddr_Testing_Mode_OFF|TDA7418_SubAddr_Auto_Zero_Remain_OFF|TDA7418_SubAddr_Auto_Increment_Mode_OFF|TDA7418_SubAddr_Test_Processor ;
MasterBuffer[2] = mode|miltiplekser|SC_clock|MUTE_Pin_Config;
_TDA7418_i2cWriteExecute();
}

void TDA7418_Audio_Processor_Operating_Mode(void)
{
_TDA7418_Audio_Processor_Testing_Mode(TDA7418_AUDIO_PROCESSOR_OPERATIING_MODE, 0, 0, 0);
}

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