mirror of
https://github.com/RobTillaart/Arduino.git
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90 lines
1.8 KiB
C++
90 lines
1.8 KiB
C++
#pragma once
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//
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// FILE: M62429.h
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// AUTHOR: Rob Tillaart
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// PURPOSE: Arduino library for M62429 volume control IC
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// VERSION: 0.3.6
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// URL: https://github.com/RobTillaart/M62429
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#include "Arduino.h"
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#define M62429_VERSION (F("0.3.6"))
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// minimum pulse width CLOCK = 1.6 us (datasheet);
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// digitalWrite takes enough time on UNO / AVR so clock_delay == 0
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// Note that if clock pulses are long enough the data pulses are too.
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#ifndef M62429_CLOCK_DELAY
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#ifdef __AVR__
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#define M62429_CLOCK_DELAY 0
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#else
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#define M62429_CLOCK_DELAY 2
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#endif
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#endif
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// ERROR CODES
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#define M62429_OK 0
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#define M62429_MUTED -1
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#define M62429_CHANNEL_ERROR -10
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// CHANNELS
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#define M62429_LEFT 0
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#define M62429_RIGHT 1
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#define M62429_BOTH 2
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class M62429
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{
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public:
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void begin(uint8_t dataPin, uint8_t clockPin);
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// channel = { 0, 1 }
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int getVolume(uint8_t channel);
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// channel = { 0, 1, 2 = both; volume = {0 .. 255 }
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int setVolume(uint8_t channel, uint8_t volume);
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// increment /decrement until min/max = 0..255
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int incr(uint8_t channel = 2);
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int decr(uint8_t channel = 2);
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int average();
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void muteOn();
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void muteOff();
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bool isMuted() { return _muted; };
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private:
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uint8_t _vol[2] = { 0, 0 };
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uint8_t _data = 0;
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uint8_t _clock = 0;
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bool _muted = false;
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void _setAttn(uint8_t channel, uint8_t attn);
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};
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class M62429_RAW
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{
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public:
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void begin(uint8_t dataPin, uint8_t clockPin);
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// channel = { 0, 1 }
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int getAttn(uint8_t channel);
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// channel = { 0, 1, 2 = both; attn = {0 .. 87 }
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void setAttn(uint8_t channel, uint8_t attn);
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private:
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uint8_t _attn[2] = { 0, 0 };
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uint8_t _data = 0;
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uint8_t _clock = 0;
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};
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// -- END OF FILE --
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