renderbug-cpp/src/BootOptions.cpp

#include "BootOptions.h"
#include "Config.h"

#include <EEPROM.h>

#ifdef BOARD_ESP8266
#include <ESP8266WiFi.h>
#endif

#ifdef PLATFORM_PHOTON
LEDStatus serialStatus = LEDStatus(RGB_COLOR_ORANGE, LED_PATTERN_FADE, LED_SPEED_FAST, LED_PRIORITY_BACKGROUND);
LEDStatus configStatus = LEDStatus(RGB_COLOR_YELLOW, LED_PATTERN_FADE, LED_SPEED_NORMAL, LED_PRIORITY_IMPORTANT);
retained bool LAST_BOOT_WAS_FLASH;
retained bool LAST_BOOT_WAS_SERIAL;
#endif

#ifndef __NOINIT_ATTR // Pre-defined on esp32
#define __NOINIT_ATTR __attribute__ ((section (".noinit")))
#endif

#define SAFE_MODE_MAGIC 6942

__NOINIT_ATTR uint8_t s_rebootCount;
__NOINIT_ATTR uint16_t s_forceSafeMode;

void
BootOptions::forceSafeMode()
{
  s_forceSafeMode = SAFE_MODE_MAGIC;
}

void
BootOptions::initPins()
{
#ifdef PLATFORM_PHOTON
    pinMode(2, INPUT_PULLDOWN);
    pinMode(3, INPUT_PULLDOWN);
    pinMode(4, INPUT_PULLDOWN);
#endif
}

BootOptions::BootOptions()
{
#ifdef PLATFORM_PHOTON
    isSetup = digitalRead(2) == HIGH;
    isSerial = digitalRead(3) == HIGH || LAST_BOOT_WAS_SERIAL;
    isFlash = digitalRead(4) == HIGH;

    LAST_BOOT_WAS_FLASH = isFlash;
    LAST_BOOT_WAS_SERIAL |= isSerial;
    lastBootWasFlash = LAST_BOOT_WAS_FLASH;

    configStatus.setActive(isSetup);
    serialStatus.setActive(isSerial);
#endif
#ifdef BOARD_ESP32
    resetReason = esp_reset_reason();
    crashCount = s_rebootCount;
    if (resetReason >= 4) { // TODO: These values are defined in
                            // esp32/rom/rtc.h, but not sure if that's included
                            // on platformio builds
      if (crashCount++ >= 3) {
        // Boot into safe mode if the watchdog reset us three times in a row.
        isSafeMode = true;
      }
    } else {
      crashCount = 0;
    }
    s_rebootCount = crashCount;
#endif
#ifdef BOARD_ESP8266
    struct rst_info resetInfo = *ESP.getResetInfoPtr();
    resetReason = resetInfo.reason;
    crashCount = s_rebootCount;
    if (resetInfo.reason == REASON_SOFT_WDT_RST || resetInfo.reason == REASON_WDT_RST || resetInfo.reason == REASON_EXCEPTION_RST) {
      if (crashCount++ >= 3) {
        // Boot into safe mode if the watchdog reset us three times in a row.
        isSafeMode = true;
      }
    } else {
      crashCount = 0;
    }
    s_rebootCount = crashCount;

    if (resetInfo.reason > 0 && s_forceSafeMode == SAFE_MODE_MAGIC) {
      isSafeMode = true;
      s_forceSafeMode = 0;
    }
#endif
}

void
BootOptions::waitForRelease()
{
#ifdef PLATFORM_PHOTON
    while(digitalRead(2) == HIGH || digitalRead(3) == HIGH) {};
#endif
}