beginning of daisy seed support

TODO

@@ -26,6 +26,7 @@ code:
 * pan process with no out: should just reset coeffs?
 * trace calls (debug)
 * svf bandpass out polarity too confusing?
+* better common config.h (less stuff maybe)
 
 build system:
 * make makefiles handle paths with spaces etc

examples/common/daisy-seed/daisy-seed.mk

@@ -0,0 +1,16 @@
+LIBDAISY_DIR := ${ROOT_DIR}/../../../../libDaisy
+
+ifdef SYNTH
+CPP_SOURCES = ${ROOT_DIR}/../../common/daisy-seed/synth.cpp
+else
+CPP_SOURCES = ${ROOT_DIR}/../../common/daisy-seed/fx.cpp
+endif
+
+LDFLAGS += -u _printf_float
+
+SYSTEM_FILES_DIR = ${LIBDAISY_DIR}/core
+include ${SYSTEM_FILES_DIR}/Makefile
+
+CPPFLAGS += \
+	-I${ROOT_DIR}/../src \
+	-I${ROOT_DIR}/../../../include

examples/common/daisy-seed/fx.cpp

@@ -0,0 +1,52 @@
+#include "daisy_seed.h"
+#include "config.h"
+
+using namespace daisy;
+
+DaisySeed hardware;
+
+P_TYPE instance;
+
+static void AudioCallback(
+		AudioHandle::InterleavingInputBuffer in,
+		AudioHandle::InterleavingOutputBuffer out,
+		size_t size) {
+	// set params
+	// update coeffs ctrl
+	for (size_t i = 0; i < size; i++)
+		// update coeffs audio
+		out[i] = in[i];
+}
+
+int main() {
+	hardware.Configure();
+	hardware.Init();
+
+	// ...
+	AdcChannelConfig adcConfig;
+	adcConfig.InitSingle(hardware.GetPin(21));
+
+	hardware.adc.Init(&adcConfig, 1);
+	hardware.adc.Start();
+	// ...
+
+	hardware.SetAudioBlockSize(32);
+	float sample_rate = hardware.AudioSampleRate();
+
+	// init
+	// set sample rate
+	
+	hardware.StartLog();
+
+	// set params
+	// reset coeffs
+	// reset state
+	
+	hardware.StartAudio(AudioCallback);
+	
+	while (1) {
+		//hardware.adc.GetFloat(0);
+		//hardware.PrintLine("%f",x);
+		//System::Delay(x);
+	}
+}

examples/fx_wah/daisy-seed/Makefile

@@ -0,0 +1,6 @@
+ROOT_DIR := $(shell dirname $(realpath $(firstword $(MAKEFILE_LIST))))
+
+TARGET = bw_example_fx_wah
+CPP_SOURCES += ${ROOT_DIR}/../src/bw_example_fx_wah.c
+
+include ${ROOT_DIR}/../../common/daisy-seed/daisy-seed.mk