esp32-sk6812/src/main.cpp

514 lines
12 KiB
C++

#include <array>
#include <memory>
#include <Arduino.h>
#include <WiFi.h>
#include <WiFiMulti.h>
#include <SPIFFS.h>
#include <ETH.h>
#include <FreeRTOS.h>
#include <freertos/semphr.h>
#include "WebServer.h"
#include "Fader.h"
#include "UDPProto.h"
#include "UpdateServer.h"
#include "Font.h"
#include "Config.h"
#include "Animation/AllAnimations.h"
#include "Animation/AnimationController.h"
#include <esp32_digital_led_lib.h>
#include <esp32_digital_led_funcs.h>
#include "coreids.h"
const uint32_t FRAME_INTERVAL_US = 16666;
const uint32_t NUM_STRIPS = 2;
const uint32_t NUM_LEDS = 150;
const uint32_t FLIP_STRIPS_MASK = 0x00000002;
std::array<strand_t, 1> STRANDS { // Avoid using any of the strapping pins on the ESP32, anything >=32, 16, 17... not much left.
strand_t {.rmtChannel = 0, .gpioNum = 4, .ledType = LED_SK6812W_V1, .brightLimit = 32, .numPixels = NUM_LEDS * NUM_STRIPS},
};
bool led_on = false;
size_t led_idx;
WiFiMulti wiFiMulti;
// this mutex is locked while LEDs are written and must be also locked
// by any task accessing the flash, as (probably) the interrupts
// from the flash cause the LED update to be unreliable.
SemaphoreHandle_t ledLockoutMutex;
Fader ledFader(NUM_STRIPS, NUM_LEDS, 1, FLIP_STRIPS_MASK);
UDPProto udpProto(&ledFader);
UpdateServer *updateServer;
AnimationController animController(&ledFader);
static bool eth_connected = false;
void WiFiEvent(WiFiEvent_t event)
{
switch (event) {
case SYSTEM_EVENT_ETH_START:
Serial.println("ETH Started");
//set eth hostname here
ETH.setHostname("zamusiclight");
break;
case SYSTEM_EVENT_ETH_CONNECTED:
Serial.println("ETH Connected");
break;
case SYSTEM_EVENT_ETH_GOT_IP:
Serial.print("ETH MAC: ");
Serial.print(ETH.macAddress());
Serial.print(", IPv4: ");
Serial.print(ETH.localIP());
if (ETH.fullDuplex()) {
Serial.print(", FULL_DUPLEX");
}
Serial.print(", ");
Serial.print(ETH.linkSpeed());
Serial.println("Mbps");
eth_connected = true;
break;
case SYSTEM_EVENT_ETH_DISCONNECTED:
Serial.println("ETH Disconnected");
eth_connected = false;
break;
case SYSTEM_EVENT_ETH_STOP:
Serial.println("ETH Stopped");
eth_connected = false;
break;
default:
break;
}
}
bool initLEDs()
{
/****************************************************************************
If you have multiple strands connected, but not all are in use, the
GPIO power-on defaults for the unused strand data lines will typically be
high-impedance. Unless you are pulling the data lines high or low via a
resistor, this will lead to noise on those unused but connected channels
and unwanted driving of those unallocated strands.
This optional gpioSetup() code helps avoid that problem programmatically.
****************************************************************************/
digitalLeds_initDriver();
for (int i = 0; i < STRANDS.size(); i++) {
gpioSetup(STRANDS[i].gpioNum, OUTPUT, LOW);
}
strand_t *strands[STRANDS.size()];
for (int i = 0; i < STRANDS.size(); i++)
{
strands[i] = &STRANDS[i];
}
int rc = digitalLeds_addStrands(strands, STRANDS.size());
if (rc)
{
Serial.print("Init rc = ");
Serial.println(rc);
return false;
}
for (int i = 0; i < STRANDS.size(); i++)
{
strand_t *pStrand = strands[i];
Serial.print("Strand ");
Serial.print(i);
Serial.print(" = ");
Serial.print((uint32_t)(pStrand->pixels), HEX);
Serial.println();
#if DEBUG_ESP32_DIGITAL_LED_LIB
dumpDebugBuffer(-2, digitalLeds_debugBuffer);
#endif
}
led_idx = 0;
return true;
}
enum LEDState {
STARTUP,
UDP,
SHOWIP,
ANIMATION,
TRANSITION,
TRANSITION_FADE2BLACK
};
static AnimationController::DefaultAnimation loadSavedAnimation(void)
{
size_t ret;
File f = SPIFFS.open("/dyn/last_anim");
if(!f) {
// error, but return something useful
goto readErr;
}
AnimationController::DefaultAnimation anim;
ret = f.readBytes(reinterpret_cast<char*>(&anim), sizeof(anim));
if(ret != sizeof(anim)) {
goto readErr;
}
f.close();
return anim;
readErr:
return AnimationController::FIRE_COLD;
}
static void updateSavedAnimation(AnimationController::DefaultAnimation newSavedAnim)
{
AnimationController::DefaultAnimation oldSavedAnim = loadSavedAnimation();
if(oldSavedAnim == newSavedAnim) {
return;
}
SPIFFS.mkdir("/dyn/");
File f = SPIFFS.open("/dyn/last_anim", "w");
if(!f) {
return;
}
size_t ret = f.write(reinterpret_cast<const uint8_t*>(&newSavedAnim), sizeof(newSavedAnim));
if(ret != sizeof(newSavedAnim)) {
// failed
}
f.close();
}
static void ledFSM(void)
{
static bool stateEntered = true;
static LEDState ledState = STARTUP;
static LEDState nextState;
static unsigned long lastUDPUpdate = 0;
static unsigned long stateEnteredTime = 0;
LEDState lastState = ledState;
switch(ledState) {
case STARTUP:
animController.loop();
if(animController.isIdle()) {
Bitmap bmp(16, 16);
String infoStr = "IP: " + WiFi.localIP().toString(); // + " - IPv6: " + WiFi.localIPv6().toString();
Font::textToBitmap(infoStr.c_str(), &bmp, Fader::Color{0, 0, 0, 32});
animController.changeAnimation(std::unique_ptr<Animation>(new ImageScrollerAnimation(&ledFader, &bmp, 5)), false);
ledState = SHOWIP;
}
break;
case SHOWIP:
if(stateEntered) {
animController.restart();
}
animController.loop();
if(((WiFi.status() == WL_CONNECTED) || (WiFi.getMode() == WIFI_MODE_AP)) &&
udpProto.check()) {
// UDP packet received -> transition to UDP state
nextState = UDP;
ledState = TRANSITION;
}
// change to last used animation after some time
if((millis() - stateEnteredTime) > 60000) {
// FIXME: does not work with transition because of restart() call in ANIMATION state
animController.changeAnimation(loadSavedAnimation(), false);
ledState = ANIMATION;
}
break;
case ANIMATION:
if(stateEntered) {
animController.restart();
}
animController.loop();
if(((WiFi.status() == WL_CONNECTED) || (WiFi.getMode() == WIFI_MODE_AP)) &&
udpProto.check()) {
// UDP packet received -> transition to UDP state
nextState = UDP;
ledState = TRANSITION;
}
if((animController.animationInitiator() == AnimationController::USER) &&
(animController.currentFrame() == 60*60)) { // FIXME: #define FPS and use everywhere
updateSavedAnimation(animController.lastDefaultAnimation());
}
break;
case UDP:
if((WiFi.status() != WL_CONNECTED) && (WiFi.getMode() != WIFI_MODE_AP)) {
// WiFi disconnected -> switch to animation immediately to show reconnect animation
ledState = ANIMATION;
break;
}
if(udpProto.loop()) {
lastUDPUpdate = millis();
} else if(millis() - lastUDPUpdate > 3000) {
// seems like no more UDP data arrives -> transition to ANIMATION state
nextState = ANIMATION;
ledState = TRANSITION;
}
ledFader.update();
break;
case TRANSITION:
if(stateEntered) {
animController.stop();
}
if(animController.isIdle()) {
ledState = TRANSITION_FADE2BLACK;
} else {
animController.loop();
}
break;
case TRANSITION_FADE2BLACK:
if(stateEntered) {
ledFader.set_fadestep(2);
ledFader.fade_color(Fader::Color{0, 0, 0, 0});
}
ledFader.update();
if(!ledFader.something_changed()) {
// transition finished
ledState = nextState;
lastUDPUpdate = millis();
}
break;
}
if(lastState != ledState) {
stateEntered = true;
stateEnteredTime = millis();
} else {
stateEntered = false;
}
}
static void fineDelay(uint32_t us)
{
uint32_t ms = us / 1000;
us -= ms * 1000;
if(ms) {
delay(ms);
}
delayMicroseconds(us);
}
static void ledTask( void * parameter )
{
uint64_t frame = 0;
/* loop forever */
for(;;){
uint32_t start_time = micros();
ledFSM();
led_idx++;
if(led_idx >= STRANDS[0].numPixels) {
led_idx = 0;
}
strand_t *strands[STRANDS.size()];
for (int i = 0; i < STRANDS.size(); i++)
{
strands[i] = &STRANDS[i];
}
if(ledFader.something_changed()) {
const std::vector<Fader::Color> &colors = ledFader.get_color_values();
for (size_t i = 0; i < STRANDS[0].numPixels; i++) {
const Fader::Color &c = colors[i];
STRANDS[0].pixels[i] = pixelFromRGBW(c.r, c.g, c.b, c.w);
}
xSemaphoreTake(ledLockoutMutex, portMAX_DELAY);
digitalLeds_drawPixels(strands, 1);
xSemaphoreGive(ledLockoutMutex);
}
frame++;
uint32_t now = micros();
uint32_t duration = now - start_time;
if(frame % 60 == 0) {
uint32_t load = 100 * duration / FRAME_INTERVAL_US;
Serial.print("Duration: ");
Serial.print(duration);
Serial.print("μs → CPU Load: ");
Serial.print(load);
Serial.println(" %");
}
if(duration < FRAME_INTERVAL_US) {
fineDelay(FRAME_INTERVAL_US - duration);
}
}
/* delete a task when finish,
this will never happen because this is infinity loop */
vTaskDelete( NULL );
}
void wifi_setup(void)
{
Serial.println("Trying to connect...");
WiFi.setHostname("mlmini");
for(size_t tries = 0; tries < 10; tries++)
{
if(wiFiMulti.run() == WL_CONNECTED) {
animController.changeAnimation(std::unique_ptr<Animation>(new ConnectionEstablishedAnimation(&ledFader, true)));
Serial.println("");
Serial.println("WiFi connected");
Serial.println("IP address: ");
Serial.println(WiFi.localIP());
break;
}
led_on = !led_on;
digitalWrite(2, led_on);
delay(100);
Serial.print(".");
}
if(WiFi.status() != WL_CONNECTED) {
Serial.println("Connection failed, setting up access point...");
IPAddress apIP(192, 168, 42, 1);
WiFi.mode(WIFI_AP);
WiFi.softAPConfig(apIP, apIP, IPAddress(255, 255, 255, 0));
WiFi.softAP("🕯️💡☀️", "Licht234");
WiFi.enableAP(true);
animController.changeAnimation(std::unique_ptr<Animation>(new ConnectionEstablishedAnimation(&ledFader, false)));
}
}
void setup()
{
pinMode(2, OUTPUT); // On-Board LED
Serial.begin(115200);
delay(10);
// initalize the semaphores before anything else
ledLockoutMutex = xSemaphoreCreateMutex();
if(!initLEDs()) {
Serial.println("LED setup failed!");
while(true) {
delay(100);
}
}
if(!SPIFFS.begin()) {
Serial.println("SPIFFS setup failed!");
while(true) {
delay(100);
}
}
// load configuration (especially crypto data)
Config::instance().load();
digitalWrite(2, HIGH);
Serial.println();
Serial.println();
animController.changeAnimation(std::unique_ptr<Animation>(new ConnectingAnimation(&ledFader)), false);
xTaskCreatePinnedToCore(
ledTask, /* Task function. */
"LED Task", /* name of task. */
10000, /* Stack size of task */
NULL, /* parameter of the task */
3, /* priority of the task */
NULL, /* Task handle to keep track of created task */
CORE_ID_LED);
WiFi.onEvent(WiFiEvent);
// Connect the WiFi network (or start an AP if that doesn't work)
for (auto &net : Config::instance().getWLANList())
{
Serial.print("Adding network ");
Serial.println(net.ssid.c_str());
wiFiMulti.addAP(net.ssid.c_str(), net.password.c_str());
}
wifi_setup();
ETH.begin();
// start the UDP server
udpProto.start(2703);
// start the web server
WebServer::instance().setFader(&ledFader);
WebServer::instance().setLedLockoutMutex(&ledLockoutMutex);
WebServer::instance().setAnimationController(&animController);
WebServer::instance().start();
// start the update server
updateServer = new UpdateServer(Config::instance().getCRPassword(), &ledLockoutMutex);
updateServer->start();
}
void loop() {
led_on = !led_on;
digitalWrite(2, led_on);
delay(500);
// reconnect WiFi when connection is lost
if(WiFi.status() == WL_CONNECTION_LOST) {
Serial.println("WLAN disconnected. Restarting setup.");
wifi_setup();
}
}