Added state processing stage

CMakeLists.txt

@@ -27,7 +27,7 @@ pico_sdk_init()
  
 file(GLOB_RECURSE DAISYSP_SOURCES "${CMAKE_CURRENT_LIST_DIR}/daisysp/**/*.cpp")
  
-add_executable(sint-gauntlet ${DAISYSP_SOURCES} main.c buttons.c mux.c pwm.c synth.cc)
+add_executable(sint-gauntlet ${DAISYSP_SOURCES} main.c input.c state.c pwm.c synth.cc)
  
 pico_set_program_name(sint-gauntlet "sint-gauntlet")
 pico_set_program_version(sint-gauntlet "0.1")

build.sh

@@ -0,0 +1,12 @@
+#!/bin/bash
+
+DISK_ID=usb-RPI_RP2350_6F361FE334DD320F-0
+TARGET=sint-gauntlet.uf2
+
+cd ./build
+cmake ..
+make -j
+sudo mount "/dev/disk/by-id/$DISK_ID:0-part1" /mnt
+sudo cp $TARGET /mnt
+sync
+

buttons.c

@@ -1,24 +0,0 @@
-#include "const.h"
-#include "state.h"
-#include "vco.h"
-#include <pico/types.h>
-#include "hardware/gpio.h"
-
-void check_button_change(uint pin, bool* btn_state) {
-	static bool btn_prev[32] = { false };
-	bool btn_now = gpio_get(pin);
-	if (btn_now && !btn_prev[pin]) *btn_state = !*btn_state;
-	btn_prev[pin] = btn_now;
-}
-
-void update_buttons() {
-	check_button_change(QUANT_BUTTON, &state.quant_enabled);
-	check_button_change(AMEN_BUTTON, &state.amen_enabled);
-
-	bool vco_change;
-	check_button_change(VCO_BUTTON, &vco_change);
-	if (vco_change) {
-		if (state.vco_mode == VCO_SAW) state.vco_mode = VCO_SINE;
-		otherwise state.vco_mode++;  
-	}
-}

buttons.h

@@ -1,5 +0,0 @@
-#pragma once
-#include <pico/types.h>
-
-void update_buttons();
-

const.h

@@ -1,15 +1,14 @@
 #pragma once
 
+#define MUX0 26
+#define MUX1 27
+
 #define MUX_S0 2
 #define MUX_S1 3
 #define MUX_S2 4
 
-#define MUX0 26
+#define BUTTON_BASE 6
-#define MUX1 27
+#define BUTTON_COUNT 4
-
-#define VCO_BUTTON 6
-#define QUANT_BUTTON 7
-#define AMEN_BUTTON 8
 
 #define AUDIO_OUT 0
 #define STATUS_LED 1

input.c

@@ -0,0 +1,49 @@
+#include <hardware/adc.h>
+#include <hardware/gpio.h>
+#include <pico/stdlib.h>
+#include <pico/time.h>
+#include <sys/types.h>
+#include <stdint.h>
+#include <math.h>
+
+#include "const.h"
+
+#include "input.h"
+
+bool is_toggle[BUTTON_COUNT] = { false };
+bool btn_prev[BUTTON_COUNT] = { false };
+
+void set_mux_addr(uint8_t addr) {
+        gpio_put(MUX_S0, addr & 1);
+        gpio_put(MUX_S1, (addr >> 1) & 1);
+        gpio_put(MUX_S2, (addr >> 2) & 1);
+}
+
+void update_inputs(input_t* input) {
+	// Pots
+	for (uint8_t j = 0; j < 2; j++) {
+		adc_select_input(j);
+		for (uint8_t i = 0; i < 8; i++) {
+			set_mux_addr(i);
+			sleep_us(50); // Let multiplexers multiplex
+			float old_val = input->buttons[i + j * 8];
+			float new_val = (float)adc_read() / 4096.0f;
+			if (fabs(new_val - old_val) >= 0.01f) input->pots[i + j * 8] = new_val;
+		}
+	}
+	
+	// Buttons
+	for (uint8_t i = 0; i < BUTTON_COUNT; i++) {
+		bool btn_curr = gpio_get(BUTTON_BASE + i);
+
+		if (btn_curr == true && btn_prev[i] == false) {
+			if (is_toggle[i]) input->buttons[i] = !input->buttons[i];
+		}
+
+		if (!is_toggle[i]) input->buttons[i] = btn_curr;
+
+		btn_prev[i] = btn_curr;
+		sleep_ms(1); // Why don't you bounce on this dihh
+	}
+}
+

input.h

@@ -0,0 +1,14 @@
+#pragma once
+
+#include <sys/types.h>
+
+typedef struct {
+	float pots[16];
+	bool buttons[4];
+} input_t;
+
+extern bool is_toggle[4];
+static inline void set_toggle_button(uint8_t index, bool toggle) { is_toggle[index] = toggle; }
+
+void update_inputs(input_t* input);
+

main.c

@@ -1,5 +1,7 @@
 #include <hardware/irq.h>
+#include <pico/stdio.h>
 #include <pico/time.h>
+#include <stdnoreturn.h>
 #include <sys/types.h>
 #include <stdint.h>
 #include <stdio.h>
@@ -10,44 +12,17 @@
 #include "pico/multicore.h"
 #include "pico/stdlib.h"
 
-#include "buttons.h"
-#include "synth.h"
 #include "const.h"
 #include "macro.h"
+#include "input.h"
 #include "state.h"
+#include "synth.h"
 #include "pwm.h"
-#include "mux.h"
 
+input_t input;
 state_t state;
 
-void init_all() {
+void core0_init(void) {
-	stdio_init_all();
-
-	sleep_ms(2000);
-
-	puts("Starting PIN initialization");
-	const uint8_t out_gpio[] = {MUX_S0,MUX_S1,MUX_S2, STATUS_LED};
-	const uint8_t in_gpio[] = {VCO_BUTTON,QUANT_BUTTON,AMEN_BUTTON};
-	const uint8_t adc_gpio[] = {MUX0,MUX1};
-
-	for (uint8_t i=0; i < ARRAY_LENGTH(out_gpio); i++) {
-		gpio_init(out_gpio[i]);
-		gpio_set_dir(out_gpio[i], true);
-	}
-
-	for (uint8_t i=0; i < ARRAY_LENGTH(in_gpio); i++) {
-		gpio_init(in_gpio[i]);
-		gpio_set_dir(in_gpio[i], false);
-	}
-	adc_init();
-	for (uint8_t i=0; i < ARRAY_LENGTH(adc_gpio); i++) {
-		adc_gpio_init(adc_gpio[i]);
-		adc_select_input(i);
-	}
-
-	// Synth
-	synth_init();
-
 	// PWM bullshit
 	gpio_set_function(AUDIO_OUT, GPIO_FUNC_PWM);
 
@@ -61,22 +36,64 @@ void init_all() {
 	irq_set_exclusive_handler(PWM_IRQ_WRAP, pwm_isr);
 	irq_set_enabled(PWM_IRQ_WRAP, true);
 
+	puts("PWM Initialized.");
+
+	// Synth
+	synth_init(&state);
+	puts("Synth Initialized.");
 }
 
-__attribute__((noreturn))
+void core1_init(void) {
-void core1_main(void) {
+	// GPIO
+	const uint8_t out_gpio[] = { MUX_S0, MUX_S1, MUX_S2, STATUS_LED };
+	const uint8_t adc_gpio[] = {MUX0,MUX1};
+
+	for (uint8_t i = 0; i < ARRAY_LENGTH(out_gpio); i++) {
+		gpio_init(out_gpio[i]);
+		gpio_set_dir(out_gpio[i], true);
+	}
+
+	for (uint8_t i = 0; i < BUTTON_COUNT; i++) {
+		gpio_init(BUTTON_BASE + i);
+		gpio_set_dir(BUTTON_BASE + 1, false);
+	}
+
+	adc_init();
+	adc_gpio_init(MUX0);
+	adc_gpio_init(MUX1);
+
+	puts("GPIO Initialized.");
+
+	// Input
+	set_toggle_button(0, true);
+	set_toggle_button(1, false);
+	set_toggle_button(2, true);
+}
+
+noreturn void core1_loop(void) {
 	while (1) {
-		update_buttons();
+		update_inputs(&input);
-		update_inputs();
+		update_state(&state, &input);
-		printf("Sample: %f\n", state.dbg_sample);
+		printf("%d %f\n", input.buttons[0], input.pots[0]);
+		printf("%d\n", input.buttons[1]);
+		printf("%d\n", input.buttons[2]);
+		printf("%d\n", input.buttons[3]);
 		sleep_ms(1);
 	}
 }
 
-__attribute__((noreturn))
+noreturn void core0_loop(void) {
-int main() {
+	while (1) {
-	init_all();
+
-	multicore_launch_core1(core1_main);
+	}
-	while (1);
+}
+
+int main() {
+	stdio_init_all();
+	core0_init();
+	core1_init();
+	
+	multicore_launch_core1(core1_loop);
+	core0_loop();
 }
 

mux.c

@@ -1,25 +0,0 @@
-#include "const.h"
-#include "state.h"
-#include <hardware/adc.h>
-#include <pico/time.h>
-#include <stdint.h>
-#include <hardware/gpio.h>
-
-void set_mux_addr(uint8_t addr) {
-        gpio_put(MUX_S0, addr & 1);
-        gpio_put(MUX_S1, (addr >> 1) & 1);
-        gpio_put(MUX_S2, (addr >> 2) & 1);
-}
-
-
-
-void update_inputs() {
-        for(uint8_t i = 0; i < 2; i++) {
-                adc_select_input(i);
-                for(uint8_t j = 0; j < 8;j++) {
-                        set_mux_addr(j);
-                        sleep_ms(1); // let multiplexor multiplex
-                        state.array[i*8 + j]= adc_read()/4096.0f;
-                }
-        }
-}

mux.h

@@ -1,6 +0,0 @@
-#pragma once
-#include <stdint.h>
-
-void set_mux_addr(uint8_t addr);
-void update_inputs();
-

pwm.c

@@ -2,7 +2,6 @@
 #include <pico/types.h>
 
 #include "const.h"
-#include "state.h"
 #include "synth.h"
 
 #include "pwm.h"
@@ -15,7 +14,6 @@ void pwm_isr(void) {
 	pwm_clear_irq(slice);
 
 	float sample = get_sample();
-	state.dbg_sample = sample;
 
 	uint16_t level = (uint16_t)((sample + 1.0f) * 0.5f * 3400.0f);
 	pwm_set_chan_level(slice, chan, level);

state.c

@@ -0,0 +1,10 @@
+#include <stdio.h>
+
+#include "input.h"
+
+#include "state.h"
+
+void update_state(state_t* state, input_t* input) {
+	puts("AHHHHHH");
+}
+

state.h

@@ -2,30 +2,28 @@
 
 #include <stdint.h>
 #include <stdbool.h>
+#include "input.h"
 #include "vco.h"
 
 typedef struct {
-	union {
+	float		clock_bpm;
-		struct {
+
-			float	clock_bpm;
+	float		vco_freq;
-			float	vco_freq;
+	float		vco_volume;
-			float	vco_volume;
-			float	filter_freq;
-			float	filter_resonance;
-			float	env1_attack;
-			float	env1_release;
-			float	env2_attack;
-			float	env2_release;
-			float	reverb_amount;
-		};
-		float array[16];
-	};
 	vco_mode_t	vco_mode;
+
+	float		filter_freq;
+	float		filter_resonance;
+
+	float		env1_attack;
+	float		env1_release;
+	float		env2_attack;
+	float		env2_release;
+
+	float		reverb_amount;
 	bool		quant_enabled;
 	bool		amen_enabled;
-
-	float dbg_sample;
 } state_t;
 
-extern state_t state;
+void update_state(state_t* state, input_t* input);
 

synth.cc

@@ -11,6 +11,8 @@
 
 using namespace daisysp;
 
+static state_t* state;
+
 Oscillator osc;
 Svf filter;
 AdEnv vco_env;
@@ -97,11 +99,11 @@ float amenbreak(float beat_samples, float playback_rate) {
 	return amen_out;
 }
 
-void synth_init(void) {
+void synth_init(state_t* state) {
 	osc.Init(SAMPLE_RATE);
 	osc.SetWaveform(vco_mode_to_daisy(VCO_SAW));
 	osc.SetFreq(440.0f);
-	osc.SetAmp(2.0f);
+	osc.SetAmp(1.0f);
 
 	filter.Init(SAMPLE_RATE);
 	filter.SetFreq(2000.0f);
@@ -117,20 +119,20 @@ void synth_init(void) {
 	filter_env.SetTime(ADENV_SEG_ATTACK, 0.01f);
 	filter_env.SetTime(ADENV_SEG_DECAY, 0.5f);
 	filter_env.SetMin(0.0f);
-	filter_env.SetMax(1.0f);
+	filter_env.SetMax(2000.0f);
 
-	state.clock_bpm = 0.2f;
+	state->clock_bpm = 0.1f;
 
 	clock_phase = 0.0f;
 	clock_trig = false;
 
 	amen_phase = 0.0f;
-	state.amen_enabled = true;
+	state->amen_enabled = true;
-	state.reverb_amount = 1.0;
+	state->reverb_amount = 1.0;
 }
 
 float get_sample(void) {
-	float bpm = BPM_MIN + state.clock_bpm * (BPM_MAX - BPM_MIN);
+	float bpm = BPM_MIN + state->clock_bpm * (BPM_MAX - BPM_MIN);
 	float beat_samples = SAMPLE_RATE * 60.0f / bpm;
 	float playback_rate = bpm / AMEN_BPM;
 
@@ -147,38 +149,39 @@ float get_sample(void) {
 		filter_env.Trigger();
 	}
 
-	vco_env.SetTime(ADENV_SEG_ATTACK, pot_to_time(state.env1_attack, ENV_ATTACK_MIN, ENV_ATTACK_MAX));
+	vco_env.SetTime(ADENV_SEG_ATTACK, pot_to_time(state->env1_attack, ENV_ATTACK_MIN, ENV_ATTACK_MAX));
-	vco_env.SetTime(ADENV_SEG_DECAY, pot_to_time(state.env1_release, ENV_RELEASE_MIN, ENV_RELEASE_MAX));
+	vco_env.SetTime(ADENV_SEG_DECAY, pot_to_time(state->env1_release, ENV_RELEASE_MIN, ENV_RELEASE_MAX));
-	filter_env.SetTime(ADENV_SEG_ATTACK, pot_to_time(state.env2_attack, ENV_ATTACK_MIN, ENV_ATTACK_MAX));
+	filter_env.SetTime(ADENV_SEG_ATTACK, pot_to_time(state->env2_attack, ENV_ATTACK_MIN, ENV_ATTACK_MAX));
-	filter_env.SetTime(ADENV_SEG_DECAY, pot_to_time(state.env2_release, ENV_RELEASE_MIN, ENV_RELEASE_MAX));
+	filter_env.SetTime(ADENV_SEG_DECAY, pot_to_time(state->env2_release, ENV_RELEASE_MIN, ENV_RELEASE_MAX));
 	
 	float vco_env_out = vco_env.Process();
 	float filter_env_out = filter_env.Process();
 
-	float vco_freq = pot_to_freq(state.vco_freq, VCO_FREQ_MIN, VCO_FREQ_MAX);
+	float vco_freq = pot_to_freq(state->vco_freq, VCO_FREQ_MIN, VCO_FREQ_MAX);
-	if (state.quant_enabled) vco_freq = quantize(vco_freq, 12.0f);
+	if (state->quant_enabled) vco_freq = quantize(vco_freq, 12.0f);
 
-	osc.SetFreq(vco_freq);
+	//osc.SetFreq(vco_freq);
-	osc.SetWaveform(vco_mode_to_daisy(state.vco_mode));
+	static int n = VCO_SINE;
-	osc.SetAmp(1.0f);
+	osc.SetWaveform(vco_mode_to_daisy((vco_mode_t)(n++ % 4)));
+	//osc.SetAmp(1.0f);
 
 	float vco_out = osc.Process();
 
-	float base_cutoff = pot_to_freq(state.filter_freq, FILTER_FREQ_MIN, FILTER_FREQ_MAX);
+	float base_cutoff = pot_to_freq(state->filter_freq, FILTER_FREQ_MIN, FILTER_FREQ_MAX);
 	float mod_cutoff = base_cutoff + filter_env_out * (FILTER_FREQ_MAX - FILTER_FREQ_MIN);
 	mod_cutoff = fclamp(mod_cutoff, FILTER_FREQ_MIN, FILTER_FREQ_MAX);
 
-	filter.SetFreq(mod_cutoff);
+	//filter.SetFreq(mod_cutoff);
-	filter.SetRes(state.filter_resonance);
+	//filter.SetRes(state.filter_resonance);
 	filter.Process(vco_out);
 	float filtered = filter.Low();
 
-	float vca_out = filtered * vco_env_out * state.vco_volume;
+	float vca_out = filtered * vco_env_out;// * state.vco_volume;
 
 	float reverb_out = vca_out; //reverb(vca_out, state.reverb_amount);
 
 	float amen_out = 0.0f;
-	if (state.amen_enabled) amen_out = amenbreak(beat_samples, playback_rate);
+	if (state->amen_enabled) amen_out = amenbreak(beat_samples, playback_rate);
 
 	float mix = reverb_out + amen_out;
 	mix = fclamp(mix, -1.0f, 1.0f);

synth.h

@@ -1,5 +1,7 @@
 #pragma once
 
+#include "state.h"
+
 #define COMB0_SIZE 1103
 #define COMB1_SIZE 1361
 #define COMB2_SIZE 1499
@@ -11,7 +13,7 @@
 extern "C" {
 #endif
 
-void synth_init(void);
+void synth_init(state_t* state);
 float get_sample(void);
 
 #ifdef __cplusplus