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EIE4-FYP/demo/main.cpp
Aadi Desai 5871150c5c
Fixes to demo program
2023-06-10 14:56:07 +01:00

467 lines
13 KiB
C++
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// This file is Copyright (c) 2020 Florent Kermarrec <florent@enjoy-digital.fr>
// License: BSD
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <generated/csr.h>
#include <irq.h>
#include <libbase/console.h>
#include <libbase/uart.h>
#include "audio"
#include "can"
/*-----------------------------------------------------------------------*/
/* Uart */
/*-----------------------------------------------------------------------*/
char *readstr(bool print) {
char c[2];
static char s[64];
static unsigned int ptr = 0;
if (print) {
s[ptr] = 0x00;
fputs(s, stdout);
} else if (readchar_nonblock()) {
c[0] = getchar();
c[1] = 0;
switch (c[0]) {
case 0x7f:
case 0x08:
if (ptr > 0) {
ptr--;
fputs("\x08 \x08", stdout);
}
break;
case 0x07:
break;
case '\r':
case '\n':
s[ptr] = 0x00;
fputs("\n", stdout);
ptr = 0;
return s;
default:
if (ptr >= (sizeof(s) - 1))
break;
fputs(c, stdout);
s[ptr] = c[0];
ptr++;
break;
}
}
return NULL;
}
static char *readstr(void) {
return readstr(false);
}
static char *get_token(char **str) {
char *c, *d;
c = (char *)strchr(*str, ' ');
if (c == NULL) {
d = *str;
*str = *str + strlen(*str);
return d;
}
*c = 0;
d = *str;
*str = c + 1;
return d;
}
static void prompt(void) {
printf("\e[92;1mStackSynth\e[0m> ");
}
/*-----------------------------------------------------------------------*/
/* Help */
/*-----------------------------------------------------------------------*/
static void help(void) {
puts("\nLiteX custom demo app built " __DATE__
" " __TIME__
"\n");
puts("Available commands:");
puts("help - Show this command");
puts("reboot - Reboot CPU");
puts("donut - Spinning Donut demo");
#ifdef CSR_LEDS_BASE
puts("led - Led demo");
puts("leds - Led set demo");
#endif
#ifdef CSR_AUDIO_BASE
puts("saw - Sawtooth Wave (osc, freq)");
puts("square - Square Wave (osc, freq)");
puts("triangle - Triangle Wave (osc, freq)");
puts("sine - Sine Wave (osc, freq)");
puts("imperial - Imperial March demo");
puts("roll - Music demo");
#endif
#ifdef CSR_DAC_VOL_BASE
puts("volume - Get / Set DAC Volume");
#endif
#ifdef CSR_CAN_BASE
puts("can_id - Get / Set CAN ID");
puts("can_mask - Get / Set CAN Mask");
puts("can_read - Receive CAN Frames and print (delay in s)");
puts("can_watch - Watch CAN Frames at 2Hz");
#ifdef CSR_AUDIO_BASE
puts("can_listen - Play CAN Frames as Audio");
#endif
#endif
}
/*-----------------------------------------------------------------------*/
/* Commands */
/*-----------------------------------------------------------------------*/
static void reboot_cmd(void) {
ctrl_reset_write(1);
}
#ifdef CSR_LEDS_BASE
void led(void);
static void led_cmd(void) {
led();
}
static void leds_cmd(char **val) {
int value = (int)strtol(get_token(val), NULL, 0);
printf("Setting LED to %6x\n", value);
leds_out_write(value);
}
#endif
#ifdef CSR_AUDIO_BASE
static void saw_cmd(char **val) {
uint32_t osc = static_cast<uint32_t>(strtol(get_token(val), NULL, 10));
uint32_t freq = static_cast<uint32_t>(strtol(get_token(val), NULL, 10));
printf("Setting Oscillator %d to Sawtooth: %dHz\n", osc, freq);
audio(osc, WAVE_SAWTOOTH, freq);
}
static void square_cmd(char **val) {
uint32_t osc = static_cast<uint32_t>(strtol(get_token(val), NULL, 10));
uint32_t freq = static_cast<uint32_t>(strtol(get_token(val), NULL, 10));
printf("Setting Oscillator %d to Square: %dHz\n", osc, freq);
audio(osc, WAVE_SQUARE, freq);
}
static void triangle_cmd(char **val) {
uint32_t osc = static_cast<uint32_t>(strtol(get_token(val), NULL, 10));
uint32_t freq = static_cast<uint32_t>(strtol(get_token(val), NULL, 10));
printf("Setting Oscillator %d to Triangle: %dHz\n", osc, freq);
audio(osc, WAVE_TRIANGLE, freq);
}
static void sine_cmd(char **val) {
uint32_t osc = static_cast<uint32_t>(strtol(get_token(val), NULL, 10));
uint32_t freq = static_cast<uint32_t>(strtol(get_token(val), NULL, 10));
printf("Setting Oscillator %d to Sine: %dHz\n", osc, freq);
audio(osc, WAVE_SINE, freq);
}
static void imperial_cmd() {
timed_freq(0, G4, 400);
timed_freq(0, NONE, 400);
timed_freq(0, G4, 400);
timed_freq(0, NONE, 400);
timed_freq(0, G4, 600);
timed_freq(0, NONE, 600);
timed_freq(0, D4S, 200);
timed_freq(0, A4S, 200);
timed_freq(0, G4, 600);
timed_freq(0, NONE, 200);
timed_freq(0, D4S, 400);
timed_freq(0, NONE, 200);
timed_freq(0, A4S, 200);
timed_freq(0, G4, 1000);
timed_freq(0, D4S, 600);
timed_freq(0, NONE, 200);
timed_freq(0, D5, 600);
timed_freq(0, NONE, 200);
timed_freq(0, D5, 600);
timed_freq(0, NONE, 200);
timed_freq(0, D5, 600);
timed_freq(0, NONE, 200);
timed_freq(0, D5S, 400);
timed_freq(0, NONE, 200);
timed_freq(0, A4S, 200);
timed_freq(0, F4S, 600);
timed_freq(0, NONE, 200);
timed_freq(0, D4S, 400);
timed_freq(0, NONE, 200);
timed_freq(0, A4S, 200);
timed_freq(0, G4, 800);
}
static void roll_cmd() {
timed_freq(0, C4S, 450);
timed_freq(0, D4S, 600);
timed_freq(0, G3S, 150);
timed_freq(0, D4S, 450);
timed_freq(0, F4, 450);
timed_freq(0, G4S, 90);
timed_freq(0, F4S, 90);
timed_freq(0, F4, 90);
timed_freq(0, C4S, 510);
timed_freq(0, D4S, 600);
timed_freq(0, G3S, 1500);
timed_freq(0, C4S, 450);
timed_freq(0, D4S, 600);
timed_freq(0, G3S, 150);
timed_freq(0, D4S, 450);
timed_freq(0, F4, 450);
timed_freq(0, G4S, 90);
timed_freq(0, F4S, 90);
timed_freq(0, F4, 90);
timed_freq(0, C4S, 510);
timed_freq(0, D4S, 600);
timed_freq(0, G3S, 1500);
}
#endif
#ifdef CSR_DAC_VOL_BASE
static void dac_vol_cmd(char **val) {
char *token = get_token(val);
if (token == *val) {
printf("DAC volume is %d (of 128)\n", dac_vol_volume_read());
} else {
int value = (int)strtol(token, NULL, 0);
printf("Setting DAC volume to %d (of 128)\n", value);
dac_vol_volume_write(value);
}
}
#endif
#ifdef CSR_CAN_BASE
static void can_id_cmd(char **val) {
char *token = get_token(val);
if (token == *val) {
printf("Current CAN ID (filter) is 0x%03X (max 0x7FF)\n", can_id_read());
} else {
int value = (int)strtol(token, NULL, 0);
printf("Setting CAN ID (filter) to 0x%03X (max 0x7FF)\n", value);
can_id_write(value);
}
}
static void can_mask_cmd(char **val) {
char *token = get_token(val);
if (token == *val) {
printf("Current CAN mask is 0x%03X (max 0x7FF)\n", can_mask_read());
} else {
int value = (int)strtol(token, NULL, 0);
printf("Setting CAN mask to 0x%03X (max 0x7FF)\n", value);
can_mask_write(value);
}
}
static void can_read_cmd(char **val) {
char *token = get_token(val);
int loop_delay;
if (token == *val) {
loop_delay = 10;
} else {
loop_delay = (int)strtol(token, NULL, 0) * 10;
}
while (true) {
can_frame frame = can_read();
printf("CAN ID: 0x%03X, data:", frame.id);
for (int i = 0; i < 8; i++) {
printf(" 0x%02X", frame.data[i]);
}
printf("\n");
for (int i = 0; i < loop_delay; i++) {
if (readchar_nonblock()) {
getchar();
return;
}
busy_wait(100);
}
}
}
static void can_watch_cmd() {
while (true) {
can_frame frame = can_read();
printf("CAN ID: 0x%03X, data:", frame.id);
for (int i = 0; i < 8; i++) {
printf(" 0x%02X", frame.data[i]);
}
printf("\r");
if (readchar_nonblock()) {
getchar();
printf("\n");
return;
}
busy_wait(200);
}
}
#ifdef CSR_AUDIO_BASE
const char *notes[85] = {"None", "C1", "C1#", "D1", "D1#", "E1", "F1", "F1#", "G1", "G1#", "A1", "A1#", "B1", "C2", "C2#", "D2", "D2#", "E2", "F2", "F2#", "G2", "G2#", "A2", "A2#", "B2", "C3", "C3#", "D3", "D3#", "E3", "F3", "F3#", "G3", "G3#", "A3", "A3#", "B3", "C4", "C4#", "D4", "D4#", "E4", "F4", "F4#", "G4", "G4#", "A4", "A4#", "B4", "C5", "C5#", "D5", "D5#", "E5", "F5", "F5#", "G5", "G5#", "A5", "A5#", "B5", "C6", "C6#", "D6", "D6#", "E6", "F6", "F6#", "G6", "G6#", "A6", "A6#", "B6", "C7", "C7#", "D7", "D7#", "E7", "F7", "F7#", "G7", "G7#", "A7", "A7#", "B7"};
const uint32_t freqs[85] = {0, 33, 35, 37, 39, 41, 44, 46, 49, 52, 55, 58, 62, 65, 69, 73, 78, 82, 87, 93, 98, 104, 110, 117, 123, 131, 139, 147, 156, 165, 175, 185, 196, 208, 220, 233, 247, 262, 277, 294, 311, 330, 349, 370, 392, 415, 440, 466, 494, 523, 554, 587, 622, 659, 698, 740, 784, 831, 880, 932, 988, 1047, 1109, 1175, 1245, 1319, 1397, 1480, 1568, 1661, 1760, 1865, 1976, 2093, 2217, 2349, 2489, 2637, 2794, 2960, 3136, 3322, 3520, 3729, 3951};
static void can_listen_cmd() {
for (int i = 0; i < 64; i++) {
set_wave(i, WAVE_SINE);
}
bool active_notes[85] = {0};
uint32_t active_osc[64] = {0};
uint32_t active_oscs = 0;
while (true) {
can_frame frame = can_read();
switch (frame.data[0]) {
case 'P': {
uint32_t note = (frame.data[1] - 1) * 12 + frame.data[2];
if (active_notes[note] || active_oscs == 64) // ALready active or all oscillators in use, ignore
break;
active_notes[note] = true; // Mark note as active
active_osc[active_oscs] = note; // Set oscillator to note
set_freq(active_oscs, freqs[note]); // Set oscillator frequency
printf("Playing note %s (%d) on oscillator %d\n", notes[note], note, active_oscs);
active_oscs++;
break;
}
case 'R': {
uint32_t note = (frame.data[1] - 1) * 12 + frame.data[2];
if (active_notes[note] == false) { // Not active, ignore
break;
} else if (true) {
printf("Finding note %s (%d)\n", notes[note], note); // Debug
active_notes[note] = false; // Mark note as inactive
active_oscs--; // Decrement active oscillators
if (note == active_osc[active_oscs]) { // Note is last active
active_osc[active_oscs] = 0; // Clear oscillator
set_freq(active_oscs, 0); // Set frequency to 0
printf("Stopping last note %s (%d)\n", notes[note], note); // Debug
break;
} // Note is not last active
printf("Note %s (%d) is not last active\n", notes[note], note); // Debug
for (uint32_t i = 0; i <= active_oscs; i++) { // Find note
printf("Checking oscillator %d\n", i); // Debug
if (note != active_osc[i]) { // Not this oscillator
printf("Not in oscillator %d\n", i); // Debug
continue;
} // Found note
uint32_t swapped_note = active_osc[active_oscs]; // Get last active note
set_freq(i, freqs[swapped_note]); // Set frequency of oscillator to last active note
active_osc[i] = swapped_note; // Set oscillator to last active note
set_freq(active_oscs, 0); // Set last oscillator to 0
active_osc[active_oscs] = 0; // Clear last active note
printf("Stopping note %s (%d)\n", notes[note], note); // Debug
goto done; // Done
}
printf("Note up for note %s not found\n", notes[note]); // Error
break;
}
}
default: {
// printf("Unknown command, data[0]: 0x%2X", frame.data[0]);
break;
}
}
done:
if (readchar_nonblock()) {
getchar();
for (int i = 0; i < 64; i++) {
audio(i, WAVE_SAWTOOTH, 0);
}
return;
}
}
}
#endif
#endif
void donut(void);
static void donut_cmd(void) {
printf("Donut demo...\n");
donut();
}
/*-----------------------------------------------------------------------*/
/* Console service / Main */
/*-----------------------------------------------------------------------*/
static void console_service(void) {
char *str;
char *token;
str = readstr();
if (str == NULL)
return;
token = get_token(&str);
if (strcmp(token, "help") == 0)
help();
else if (strcmp(token, "reboot") == 0)
reboot_cmd();
else if (strcmp(token, "donut") == 0)
donut_cmd();
#ifdef CSR_LEDS_BASE
else if (strcmp(token, "led") == 0)
led_cmd();
else if (strcmp(token, "leds") == 0)
leds_cmd(&str);
#endif
#ifdef CSR_AUDIO_BASE
else if (strcmp(token, "saw") == 0)
saw_cmd(&str);
else if (strcmp(token, "square") == 0)
square_cmd(&str);
else if (strcmp(token, "triangle") == 0)
triangle_cmd(&str);
else if (strcmp(token, "sine") == 0)
sine_cmd(&str);
else if (strcmp(token, "imperial") == 0)
imperial_cmd();
else if (strcmp(token, "roll") == 0)
roll_cmd();
#endif
#ifdef CSR_DAC_VOL_BASE
else if (strcmp(token, "volume") == 0)
dac_vol_cmd(&str);
#endif
#ifdef CSR_CAN_BASE
else if (strcmp(token, "can_id") == 0)
can_id_cmd(&str);
else if (strcmp(token, "can_mask") == 0)
can_mask_cmd(&str);
else if (strcmp(token, "can_read") == 0)
can_read_cmd(&str);
else if (strcmp(token, "can_watch") == 0)
can_watch_cmd();
#ifdef CSR_AUDIO_BASE
else if (strcmp(token, "can_listen") == 0)
can_listen_cmd();
#endif
#endif
prompt();
}
void isr(void);
int main(void) {
#ifdef CONFIG_CPU_HAS_INTERRUPT
irq_setmask(0);
irq_setie(1);
#endif
uart_init();
can_init();
help();
prompt();
while (1) {
isr();
console_service();
}
}
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