Add CS4272 control (thanks William Hollender)

https://hackaday.io/project/5912-teensy-super-audio-board

Audio.h

 #include "control_sgtl5000.h"
 #include "control_wm8731.h"
 #include "control_ak4558.h"
+#include "control_cs4272.h"
 #include "effect_bitcrusher.h"
 #include "effect_chorus.h"
 #include "effect_fade.h"

control_cs4272.cpp

+/* Audio Library for Teensy 3.X
+ * Copyright (c) 2014, Paul Stoffregen, paul@pjrc.com
+ *
+ * https://hackaday.io/project/5912-teensy-super-audio-board
+ * https://github.com/whollender/Audio/tree/SuperAudioBoard
+ *
+ * Development of this audio library was funded by PJRC.COM, LLC by sales of
+ * Teensy and Audio Adaptor boards.  Please support PJRC's efforts to develop
+ * open source software by purchasing Teensy or other PJRC products.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice, development funding notice, and this permission
+ * notice shall be included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "control_cs4272.h"
+#include "Wire.h"
+
+#define CS4272_ADDR 0x10 // TODO: need to double check
+
+// Section 8.1 Mode Control
+#define CS4272_MODE_CONTROL			(uint8_t)0x01
+#define CS4272_MC_FUNC_MODE(x)			(uint8_t)(((x) & 0x03) << 6)
+#define CS4272_MC_RATIO_SEL(x)			(uint8_t)(((x) & 0x03) << 4)
+#define CS4272_MC_MASTER_SLAVE			(uint8_t)0x08
+#define CS4272_MC_SERIAL_FORMAT(x)		(uint8_t)(((x) & 0x07) << 0)
+
+// Section 8.2 DAC Control
+#define CS4272_DAC_CONTROL			(uint8_t)0x02
+#define CS4272_DAC_CTRL_AUTO_MUTE		(uint8_t)0x80
+#define CS4272_DAC_CTRL_FILTER_SEL		(uint8_t)0x40
+#define CS4272_DAC_CTRL_DE_EMPHASIS(x)		(uint8_t)(((x) & 0x03) << 4)
+#define CS4272_DAC_CTRL_VOL_RAMP_UP		(uint8_t)0x08
+#define CS4272_DAC_CTRL_VOL_RAMP_DN		(uint8_t)0x04
+#define CS4272_DAC_CTRL_INV_POL(x)		(uint8_t)(((x) & 0x03) << 0)
+
+// Section 8.3 DAC Volume and Mixing
+#define CS4272_DAC_VOL				(uint8_t)0x03
+#define CS4272_DAC_VOL_CH_VOL_TRACKING		(uint8_t)0x40
+#define CS4272_DAC_VOL_SOFT_RAMP(x)		(uint8_t)(((x) & 0x03) << 4)
+#define CS4272_DAC_VOL_ATAPI(x)			(uint8_t)(((x) & 0x0F) << 0)
+
+// Section 8.4 DAC Channel A volume
+#define CS4272_DAC_CHA_VOL			(uint8_t)0x04
+#define CS4272_DAC_CHA_VOL_MUTE			(uint8_t)0x80
+#define CS4272_DAC_CHA_VOL_VOLUME(x)		(uint8_t)(((x) & 0x7F) << 0)
+
+// Section 8.5 DAC Channel B volume
+#define CS4272_DAC_CHB_VOL			(uint8_t)0x05
+#define CS4272_DAC_CHB_VOL_MUTE			(uint8_t)0x80
+#define CS4272_DAC_CHB_VOL_VOLUME(x)		(uint8_t)(((x) & 0x7F) << 0)
+
+// Section 8.6 ADC Control
+#define CS4272_ADC_CTRL				(uint8_t)0x06
+#define CS4272_ADC_CTRL_DITHER			(uint8_t)0x20
+#define CS4272_ADC_CTRL_SER_FORMAT		(uint8_t)0x10
+#define CS4272_ADC_CTRL_MUTE(x)			(uint8_t)(((x) & 0x03) << 2)
+#define CS4272_ADC_CTRL_HPF(x)			(uint8_t)(((x) & 0x03) << 0)
+
+// Section 8.7 Mode Control 2
+#define CS4272_MODE_CTRL2			(uint8_t)0x07
+#define CS4272_MODE_CTRL2_LOOP			(uint8_t)0x10
+#define CS4272_MODE_CTRL2_MUTE_TRACK		(uint8_t)0x08
+#define CS4272_MODE_CTRL2_CTRL_FREEZE		(uint8_t)0x04
+#define CS4272_MODE_CTRL2_CTRL_PORT_EN		(uint8_t)0x02
+#define CS4272_MODE_CTRL2_POWER_DOWN		(uint8_t)0x01
+
+// Section 8.8 Chip ID
+#define CS4272_CHIP_ID				(uint8_t)0x08
+#define CS4272_CHIP_ID_PART(x)			(uint8_t)(((x) & 0x0F) << 4)
+#define CS4272_CHIP_ID_REV(x)			(uint8_t)(((x) & 0x0F) << 0)
+
+
+#define CS4272_RESET_PIN 2
+
+bool AudioControlCS4272::enable(void)
+{
+	Wire.begin();
+	delay(5);
+	initLocalRegs();
+
+	// Setup Reset pin
+	pinMode(CS4272_RESET_PIN, OUTPUT);
+
+	// Drive pin low
+	digitalWriteFast(CS4272_RESET_PIN, LOW);
+	delay(1);
+
+	// Release Reset
+	digitalWriteFast(CS4272_RESET_PIN, HIGH);
+	delay(2);
+
+	// Set power down and control port enable as spec'd in the 
+	// datasheet for control port mode
+	write(CS4272_MODE_CTRL2, CS4272_MODE_CTRL2_POWER_DOWN
+		| CS4272_MODE_CTRL2_CTRL_PORT_EN);
+
+	// Wait for further setup
+	delay(1);
+
+	// Set ratio select for MCLK=512*LRCLK (BCLK = 64*LRCLK), and master mode
+	write(CS4272_MODE_CONTROL, CS4272_MC_RATIO_SEL(3) | CS4272_MC_MASTER_SLAVE);
+
+	delay(10);
+	
+	// Release power down bit to start up codec
+	// TODO: May need other bits set in this reg
+	write(CS4272_MODE_CTRL2, CS4272_MODE_CTRL2_CTRL_PORT_EN);
+	
+	// Wait for everything to come up
+	delay(10);
+
+
+	return true;
+}
+
+bool AudioControlCS4272::volumeInteger(unsigned int n)
+{
+	unsigned int val = 0x7F - (n & 0x7F);
+	write(CS4272_DAC_CHA_VOL,CS4272_DAC_CHA_VOL_VOLUME(val));
+	write(CS4272_DAC_CHB_VOL,CS4272_DAC_CHB_VOL_VOLUME(val));
+	return true;
+}
+
+bool AudioControlCS4272::volume(float left, float right)
+{
+	unsigned int leftInt,rightInt;
+
+	leftInt = left*127 + 0.499;
+	rightInt = right*127 + 0.499;
+
+	unsigned int val = 0x7F - (leftInt & 0x7F);
+	write(CS4272_DAC_CHA_VOL,CS4272_DAC_CHA_VOL_VOLUME(val));
+	
+	val = 0x7F - (rightInt & 0x7F);
+	write(CS4272_DAC_CHB_VOL,CS4272_DAC_CHB_VOL_VOLUME(val));
+
+	return true;
+}
+
+bool AudioControlCS4272::dacVolume(float left, float right)
+{
+	return volume(left,right);
+}
+
+bool AudioControlCS4272::muteOutput(void)
+{
+	write(CS4272_DAC_CHA_VOL, 
+		regLocal[CS4272_DAC_CHA_VOL] | CS4272_DAC_CHA_VOL_MUTE);
+
+	write(CS4272_DAC_CHB_VOL, 
+		regLocal[CS4272_DAC_CHB_VOL] | CS4272_DAC_CHB_VOL_MUTE);
+
+	return true;
+}
+
+bool AudioControlCS4272::unmuteOutput(void)
+{
+	write(CS4272_DAC_CHA_VOL, 
+		regLocal[CS4272_DAC_CHA_VOL] & ~CS4272_DAC_CHA_VOL_MUTE);
+
+	write(CS4272_DAC_CHB_VOL, 
+		regLocal[CS4272_DAC_CHB_VOL] & ~CS4272_DAC_CHB_VOL_MUTE);
+
+	return true;
+}
+
+bool AudioControlCS4272::muteInput(void)
+{
+	uint8_t val = regLocal[CS4272_ADC_CTRL] | CS4272_ADC_CTRL_MUTE(3);
+	write(CS4272_ADC_CTRL,val);
+	return true;
+}
+
+bool AudioControlCS4272::unmuteInput(void)
+{
+	uint8_t val = regLocal[CS4272_ADC_CTRL] & ~CS4272_ADC_CTRL_MUTE(3);
+	write(CS4272_ADC_CTRL,val);
+	return true;
+}
+
+bool AudioControlCS4272::enableDither(void)
+{
+	uint8_t val = regLocal[CS4272_ADC_CTRL] | CS4272_ADC_CTRL_DITHER;
+	write(CS4272_ADC_CTRL,val);
+	return true;
+}
+
+bool AudioControlCS4272::disableDither(void)
+{
+	uint8_t val = regLocal[CS4272_ADC_CTRL] & ~CS4272_ADC_CTRL_DITHER;
+	write(CS4272_ADC_CTRL,val);
+	return true;
+}
+
+
+bool AudioControlCS4272::write(unsigned int reg, unsigned int val)
+{
+	// Write local copy first
+	if(reg > 7)
+		return false;
+
+	regLocal[reg] = val;
+
+	Wire.beginTransmission(CS4272_ADDR);
+	Wire.write(reg & 0xFF);
+	Wire.write(val & 0xFF);
+	Wire.endTransmission();
+	return true;
+}
+
+
+// Initialize local registers to CS4272 reset status
+void AudioControlCS4272::initLocalRegs(void)
+{
+	regLocal[CS4272_MODE_CONTROL] = 0x00;
+	regLocal[CS4272_DAC_CONTROL] = CS4272_DAC_CTRL_AUTO_MUTE;
+	regLocal[CS4272_DAC_VOL] = CS4272_DAC_VOL_SOFT_RAMP(2) | CS4272_DAC_VOL_ATAPI(9);
+	regLocal[CS4272_DAC_CHA_VOL] = 0x00;
+	regLocal[CS4272_DAC_CHB_VOL] = 0x00;
+	regLocal[CS4272_ADC_CTRL] = 0x00;
+	regLocal[CS4272_MODE_CTRL2] = 0x00;
+}
+
+
+

control_cs4272.h

+/* Audio Library for Teensy 3.X
+ * Copyright (c) 2014, Paul Stoffregen, paul@pjrc.com
+ *
+ * https://hackaday.io/project/5912-teensy-super-audio-board
+ * https://github.com/whollender/Audio/tree/SuperAudioBoard
+ *
+ * Development of this audio library was funded by PJRC.COM, LLC by sales of
+ * Teensy and Audio Adaptor boards.  Please support PJRC's efforts to develop
+ * open source software by purchasing Teensy or other PJRC products.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice, development funding notice, and this permission
+ * notice shall be included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef control_cs4272_h_
+#define control_cs4272_h_
+
+#include "AudioControl.h"
+
+class AudioControlCS4272 : public AudioControl
+{
+public:
+	bool enable(void);
+	bool disable(void) { return false; }
+	bool volume(float n) { return volumeInteger(n * 127 + 0.499); }
+	bool inputLevel(float n) { return false; }
+	bool inputSelect(int n) { return false; }
+
+	bool volume(float left, float right);
+	bool dacVolume(float n) { return volumeInteger(n * 127 + 0.499); }
+	bool dacVolume(float left, float right);
+
+	bool muteOutput(void);
+	bool unmuteOutput(void);
+
+	bool muteInput(void);
+	bool unmuteInput(void);
+
+	bool enableDither(void);
+	bool disableDither(void);
+
+protected:
+	bool write(unsigned int reg, unsigned int val);
+	bool volumeInteger(unsigned int n); // range: 0x0 to 0x7F
+	
+	uint8_t regLocal[8];
+
+	void initLocalRegs(void);
+};
+
+// For sample rate ratio select (only single speed tested)
+#define CS4272_RATIO_SINGLE 0
+#define CS4272_RATIO_DOUBLE 2
+#define CS4272_RATIO_QUAD 3
+
+#endif

keywords.txt

 AudioControlWM8731	KEYWORD2
 AudioControlWM8731master	KEYWORD2
 AudioControlAK4558	KEYWORD2
+AudioControlCS4272	KEYWORD2
 AudioMemory	KEYWORD2
 
 AudioAnalyzeFFT256	KEYWORD2
 setHighpass	KEYWORD2
 setBandpass	KEYWORD2
 setNotch	KEYWORD2
+muteOutput	KEYWORD2
+unmuteOutput	KEYWORD2
+muteInput	KEYWORD2
+unmuteInput	KEYWORD2
+enableDither	KEYWORD2
+disableDither	KEYWORD2
 frequency	KEYWORD2
 phase	KEYWORD2
 amplitude	KEYWORD2
 
 AUDIO_MEMORY_23LC1024	LITERAL1
 AUDIO_MEMORY_MEMORYBOARD	LITERAL1
+
+CS4272_RATIO_SINGLE	LITERAL1
+CS4272_RATIO_DOUBLE	LITERAL1
+CS4272_RATIO_QUAD	LITERAL1