Add AudioControlCS42448

Audio.h

@@ -69,6 +69,7 @@
 #include "control_wm8731.h"
 #include "control_ak4558.h"
 #include "control_cs4272.h"
+#include "control_cs42448.h"
 #include "effect_bitcrusher.h"
 #include "effect_chorus.h"
 #include "effect_fade.h"

control_cs42448.cpp

@@ -0,0 +1,148 @@
+/* Audio Library for Teensy 3.X
+ * Copyright (c) 2014, Paul Stoffregen, paul@pjrc.com
+ *
+ * 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_cs42448.h"
+#include "Wire.h"
+
+
+#define CS42448_Chip_ID				0x01
+#define CS42448_Power_Control			0x02
+#define CS42448_Functional_Mode			0x03
+#define CS42448_Interface_Formats		0x04
+#define CS42448_ADC_Control_DAC_DeEmphasis	0x05
+#define CS42448_Transition_Control		0x06
+#define CS42448_DAC_Channel_Mute		0x07
+#define CS42448_AOUT1_Volume_Control		0x08
+#define CS42448_AOUT2_Volume_Control		0x09
+#define CS42448_AOUT3_Volume_Control		0x0A
+#define CS42448_AOUT4_Volume_Control		0x0B
+#define CS42448_AOUT5_Volume_Control		0x0C
+#define CS42448_AOUT6_Volume_Control		0x0D
+#define CS42448_AOUT7_Volume_Control		0x0E
+#define CS42448_AOUT8_Volume_Control		0x0F
+#define CS42448_DAC_Channel_Invert		0x10
+#define CS42448_AIN1_Volume_Control		0x11
+#define CS42448_AIN2_Volume_Control		0x12
+#define CS42448_AIN3_Volume_Control		0x13
+#define CS42448_AIN4_Volume_Control		0x14
+#define CS42448_AIN5_Volume_Control		0x15
+#define CS42448_AIN6_Volume_Control		0x16
+#define CS42448_ADC_Channel_Invert		0x17
+#define CS42448_Status_Control			0x18
+#define CS42448_Status				0x19
+#define CS42448_Status_Mask			0x1A
+#define CS42448_MUTEC_Pin_Control		0x1B
+
+// 4.9 Recommended Power-Up Sequence
+//    1. Hold RST low until the power supply and clocks are stable. In this state,
+//       the control port is reset to its default settings and VQ will remain low.
+//    2. Bring RST high. The device will initially be in a low power state with VQ
+//       low. All features will default as described in the "Register Quick Reference"
+//       on page 40.
+//    3. Perform a write operation to the Power Control register ("Power Control
+//       (Address 02h)" on page 43) to set bit 0 to a '1'b.  This will place the
+//       device in a power down state.
+//    4. Load the desired register settings while keeping the PDN bit set to '1'b.
+//    5. Mute all DACs. Muting the DACs suppresses any noise associated with the
+//       CODEC's first initialization after power is applied.
+//    6. Set the PDN bit in the power control register to '0'b. VQ will ramp to
+//       approximately VA/2 according to the Popguard specification in section
+//       "Popguard" on page 29.
+//    7. Following approximately 2000 LRCK cycles, the device is initialized and
+//       ready for normal operation.
+//    8. After the CODEC is initialized, wait ~90 LRCK cycles (~1.9 ms @48 kHz) and
+//       then un-mute the DACs.
+//    9. Normal operation begins.
+
+static const uint8_t default_config[] = {
+	0xF4, // CS42448_Functional_Mode = slave mode, MCLK 25.6 MHz max
+	0x76, // CS42448_Interface_Formats = TDM mode
+	0x1C, // CS42448_ADC_Control_DAC_DeEmphasis = single ended ADC
+	0x63, // CS42448_Transition_Control = soft vol control
+	0xFF  // CS42448_DAC_Channel_Mute = all outputs mute
+};
+
+bool AudioControlCS42448::enable(void)
+{
+	Wire.begin();
+	// TODO: wait for reset signal high??
+	if (!write(CS42448_Power_Control, 0xFF)) return false; // power down
+	if (!write(CS42448_Functional_Mode, default_config, sizeof(default_config))) return false;
+	if (!write(CS42448_Power_Control, 0)) return false; // power up
+	return true;
+}
+
+bool AudioControlCS42448::volumeInteger(uint32_t n)
+{
+	uint8_t data[9];
+	data[0] = 0;
+	for (int i=1; i < 9; i++) {
+		data[i] = n;
+	}
+	return write(CS42448_DAC_Channel_Mute, data, 9);
+}
+
+bool AudioControlCS42448::volumeInteger(int channel, uint32_t n)
+{
+
+	return true;
+}
+
+bool AudioControlCS42448::inputLevelInteger(int32_t n)
+{
+
+	return true;
+}
+
+bool AudioControlCS42448::inputLevelInteger(int chnnel, int32_t n)
+{
+
+	return true;
+}
+
+bool AudioControlCS42448::write(uint32_t address, uint32_t data)
+{
+	Wire.beginTransmission(i2c_addr);
+	Wire.write(address);
+	Wire.write(data);
+	if (Wire.endTransmission() == 0) return true;
+	return false;
+}
+
+bool AudioControlCS42448::write(uint32_t address, const void *data, uint32_t len)
+{
+	Wire.beginTransmission(i2c_addr);
+	Wire.write(address | 0x80);
+	const uint8_t *p = (const uint8_t *)data;
+	const uint8_t *end = p + len;
+	while (p < end) {
+		Wire.write(*p++);
+	}
+	if (Wire.endTransmission() == 0) return true;
+	return false;
+}
+
+

control_cs42448.h

@@ -0,0 +1,84 @@
+/* Audio Library for Teensy 3.X
+ * Copyright (c) 2014, Paul Stoffregen, paul@pjrc.com
+ *
+ * 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_cs42448_h_
+#define control_cs42448_h_
+
+#include "AudioControl.h"
+#include <math.h>
+
+class AudioControlCS42448 : public AudioControl
+{
+public:
+	AudioControlCS42448(void) : i2c_addr(0x48), muted(true) { }
+	void setAddress(uint8_t addr) {
+		i2c_addr = 0x48 | (addr & 3);
+	}
+	bool enable(void);
+	bool disable(void) {
+		return false;
+	}
+	bool volume(float level) {
+		return volumeInteger(volumebyte(level));
+	}
+	bool inputLevel(float level) {
+		return inputLevelInteger(inputlevelbyte(level));
+	}
+	bool inputSelect(int n) {
+		return (n == 0) ? true : false;
+	}
+	bool volume(int channel, float level) {
+		if (channel < 1 || channel > 8) return false;
+		return volumeInteger(channel, volumebyte(level)); 
+	}
+	bool inputLevel(int channel, float level) {
+		if (channel < 1 || channel > 6) return false;
+		return inputLevelInteger(channel, inputlevelbyte(level));
+	}
+private:
+	bool volumeInteger(uint32_t n);
+	bool volumeInteger(int channel, uint32_t n);
+	bool inputLevelInteger(int32_t n);
+	bool inputLevelInteger(int chnnel, int32_t n);
+	// convert level to volume byte, section 6.9.1, page 50
+	uint32_t volumebyte(float level) {
+		if (level >= 1.0) return 0;
+		if (level <= 0.0000003981) return 128;
+		return roundf(log10f(level) * -20.0);
+	}
+	// convert level to input gain, section 6.11.1, page 51
+	int32_t inputlevelbyte(float level) {
+		if (level > 15.8489) return 48;
+		if (level < 0.00063095734) return -128;
+		return roundf(log10f(level) * 40.0);
+	}
+	bool write(uint32_t address, uint32_t data);
+	bool write(uint32_t address, const void *data, uint32_t len);
+	uint8_t i2c_addr;
+	bool muted;
+};
+
+#endif

keywords.txt

@@ -16,6 +16,7 @@ AudioControlWM8731	KEYWORD2
 AudioControlWM8731master	KEYWORD2
 AudioControlAK4558	KEYWORD2
 AudioControlCS4272	KEYWORD2
+AudioControlCS42448	KEYWORD2
 AudioMemory	KEYWORD2
 
 AudioAnalyzeFFT256	KEYWORD2