/*
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OTA MODULE COMMON FUNCTIONS
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*/
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#include "ota.h"
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#include "system.h"
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#include "terminal.h"
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#include "rtcmem.h"
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#include "utils.h"
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#include "ws.h"
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#include <atomic>
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void otaPrintError() {
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if (Update.hasError()) {
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#if TERMINAL_SUPPORT
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Update.printError(terminalDefaultStream());
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#elif DEBUG_SERIAL_SUPPORT && defined(DEBUG_PORT)
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Update.printError(DEBUG_PORT);
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#endif
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}
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}
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bool otaFinalize(size_t size, CustomResetReason reason, bool evenIfRemaining) {
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if (Update.isRunning() && Update.end(evenIfRemaining)) {
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DEBUG_MSG_P(PSTR("[OTA] Success: %7u bytes\n"), size);
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deferredReset(500, reason);
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return true;
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}
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otaPrintError();
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eepromRotate(true);
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return false;
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}
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// Helper methods from UpdaterClass that need to be called manually for async mode,
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// because we are not using Stream interface to feed it data.
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bool otaVerifyHeader(uint8_t* data, size_t len) {
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if (len < 4) {
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return false;
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}
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// ref: https://github.com/esp8266/Arduino/pull/6820
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// accept gzip, let unpacker figure things out later
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if (data[0] == 0x1F && data[1] == 0x8B) {
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return true;
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}
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// Check for magic byte with a normal .bin
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if (data[0] != 0xE9) {
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return false;
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}
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// Make sure that flash config can be recognized and fit the flash
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const auto flash_config = ESP.magicFlashChipSize((data[3] & 0xf0) >> 4);
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if (flash_config && (flash_config > ESP.getFlashChipRealSize())) {
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return false;
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}
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return true;
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}
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void otaProgress(size_t bytes, size_t each) {
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// Removed to avoid websocket ping back during upgrade (see #1574)
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// TODO: implement as separate from debugging message
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#if WEB_SUPPORT
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if (wsConnected()) return;
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#endif
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// Telnet and serial will still output things, but slightly throttled
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static size_t last = 0;
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if (bytes < last) {
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last = 0;
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}
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if ((bytes > each) && (bytes - each > last)) {
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DEBUG_MSG_P(PSTR("[OTA] Progress: %7u bytes\r"), bytes);
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last = bytes;
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}
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}
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void otaSetup() {
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// Some magic to allow seamless Tasmota OTA upgrades
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// - inject dummy data sequence that is expected to hold current version info
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// - purge settings, since we don't want accidentaly reading something as a kv
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// - sometimes we cannot boot b/c of certain SDK params, purge last 16KiB
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{
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// ref. `SetOption78 1`
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// - https://tasmota.github.io/docs/Commands/#setoptions (> SetOption78 Version check on Tasmota upgrade)
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// - https://github.com/esphome/esphome/blob/0e59243b83913fc724d0229514a84b6ea14717cc/esphome/core/esphal.cpp#L275-L287 (the original idea from esphome)
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// - https://github.com/arendst/Tasmota/blob/217addc2bb2cf46e7633c93e87954b245cb96556/tasmota/settings.ino#L218-L262 (specific checks, which succeed when finding 0xffffffff as version)
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// - https://github.com/arendst/Tasmota/blob/0dfa38df89c8f2a1e582d53d79243881645be0b8/tasmota/i18n.h#L780-L782 (constants)
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std::atomic_thread_fence(std::memory_order_relaxed);
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volatile uint32_t magic[3] [[gnu::unused]] {
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0x5AA55AA5,
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0xFFFFFFFF,
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0xA55AA55A
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};
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// ref. https://github.com/arendst/Tasmota/blob/217addc2bb2cf46e7633c93e87954b245cb96556/tasmota/settings.ino#L24
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// We will certainly find these when rebooting from Tasmota. Purge SDK as well, since we may experience WDT after starting up the softAP
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auto* rtcmem = reinterpret_cast<volatile uint32_t*>(RTCMEM_ADDR);
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if ((0xA55A == rtcmem[64]) && (0xA55A == rtcmem[68])) {
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DEBUG_MSG_P(PSTR("[OTA] Detected TASMOTA OTA, resetting the device...\n"));
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rtcmem[64] = rtcmem[68] = 0;
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customResetReason(CustomResetReason::Factory);
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resetSettings();
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eraseSDKConfig();
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*((int*) 0) = 0;
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// noreturn, we simply reboot after writing into 0
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}
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// TODO: also check for things throughout the flash sector, somehow?
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}
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#if OTA_ARDUINOOTA_SUPPORT
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arduinoOtaSetup();
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#endif
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#if OTA_CLIENT != OTA_CLIENT_NONE
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otaClientSetup();
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#endif
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}
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