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No fs format nor file recreation and boot reason changes #656

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2 changes: 1 addition & 1 deletion platformio.ini
Original file line number Diff line number Diff line change
Expand Up @@ -91,7 +91,7 @@ lib_deps =
; Common build environment for ESP32 platform
[common:esp32]
platform = https://github.com/pioarduino/platform-espressif32/releases/download/51.03.07/platform-espressif32.zip
; This is needed for occasional new features and bug fixes
; develop branch is needed for occasional new features and bug fixes, main may be preferred
; platform = https://github.com/pioarduino/platform-espressif32#develop
lib_ignore = WiFiNINA, WiFi101, OneWire
monitor_filters = esp32_exception_decoder, time
Expand Down
70 changes: 66 additions & 4 deletions src/Wippersnapper.cpp
Original file line number Diff line number Diff line change
Expand Up @@ -2644,9 +2644,10 @@ void Wippersnapper::publish(const char *topic, uint8_t *payload, uint16_t bLen,
}
}

#ifdef ARDUINO_ARCH_ESP32
/**************************************************************/
/*!
@brief Prints last reset reason of ESP32
@brief Prints string reset reason of ESP32
@param reason
The return code of rtc_get_reset_reason(coreNum)
*/
Expand Down Expand Up @@ -2696,6 +2697,7 @@ void print_reset_reason(int reason) {
break; /**<14, for APP CPU, reseted by PRO CPU*/
case 15:
WS_DEBUG_PRINTLN("RTCWDT_BROWN_OUT_RESET");
WS.brownOutCausedReset = true;
break; /**<15, Reset when the vdd voltage is not stable*/
case 16:
WS_DEBUG_PRINTLN("RTCWDT_RTC_RESET");
Expand All @@ -2705,6 +2707,64 @@ void print_reset_reason(int reason) {
}
}

#if CONFIG_IDF_TARGET_ESP32 // ESP32/PICO-D4
#include "esp32/rom/rtc.h"
#elif CONFIG_IDF_TARGET_ESP32S2
#include "esp32s2/rom/rtc.h"
#elif CONFIG_IDF_TARGET_ESP32C2
#include "esp32c2/rom/rtc.h"
#elif CONFIG_IDF_TARGET_ESP32C3
#include "esp32c3/rom/rtc.h"
#elif CONFIG_IDF_TARGET_ESP32S3
#include "esp32s3/rom/rtc.h"
#elif CONFIG_IDF_TARGET_ESP32C6
#include "esp32c6/rom/rtc.h"
#else
#error Target CONFIG_IDF_TARGET is not supported
#endif

/**************************************************************************/
/*!
@brief Prints the reason why the ESP32 CPU was reset.
@param cpuCore
The core number to print the reset reason for.
*/
/**************************************************************************/
void get_and_print_reset_reason_for_cpu(int cpuCore) {
print_reset_reason(rtc_get_reset_reason(cpuCore));
}

// end of ARDUINO_ARCH_ESP32
#elif defined(ARDUINO_ARCH_RP2040)

void print_reset_reason() {
RP2040::resetReason_t reason = rp2040.getResetReason();
WS_DEBUG_PRINT("RP2040 RESET REASON: ");
switch (reason) {
case RP2040::resetReason_t::UNKNOWN_RESET:
WS_DEBUG_PRINTLN("Unknown Reset");
case RP2040::resetReason_t::PWRON_RESET:
WS_DEBUG_PRINTLN("Power-On Reset");
case RP2040::resetReason_t::RUN_PIN_RESET:
WS_DEBUG_PRINTLN("Run Pin Reset");
case RP2040::resetReason_t::SOFT_RESET:
WS_DEBUG_PRINTLN("Soft Reset");
case RP2040::resetReason_t::WDT_RESET:
WS_DEBUG_PRINTLN("Watchdog Timer Reset");
case RP2040::resetReason_t::DEBUG_RESET:
WS_DEBUG_PRINTLN("Debug Reset");
case RP2040::resetReason_t::GLITCH_RESET:
WS_DEBUG_PRINTLN("Glitch Reset");
case RP2040::resetReason_t::BROWNOUT_RESET:
WS.brownOutCausedReset = true;
WS_DEBUG_PRINTLN("Brownout Reset");
default:
WS_DEBUG_PRINTLN("Unknown Reset Reason");
}
}

#endif

/**************************************************************************/
/*!
@brief Prints information about the WS device to the serial monitor.
Expand All @@ -2731,15 +2791,17 @@ void printDeviceInfo() {
// (ESP32-Only) Print reason why device was reset
#ifdef ARDUINO_ARCH_ESP32
WS_DEBUG_PRINT("ESP32 CPU0 RESET REASON: ");
print_reset_reason(0);
get_and_print_reset_reason_for_cpu(0);
WS_DEBUG_PRINT("ESP32 CPU1 RESET REASON: ");
print_reset_reason(1);
get_and_print_reset_reason_for_cpu(1);
#elif defined(ARDUINO_ARCH_RP2040) || defined(PICO_RP2350)
print_reset_reason();
#endif
}

/**************************************************************************/
/*!
@brief Connects to Adafruit IO+ Wippersnapper broker.
@brief Connects to Adafruit IO Wippersnapper broker.
*/
/**************************************************************************/
void Wippersnapper::connect() {
Expand Down
2 changes: 2 additions & 0 deletions src/Wippersnapper.h
Original file line number Diff line number Diff line change
Expand Up @@ -254,6 +254,8 @@ class Wippersnapper {

void provision();

bool brownOutCausedReset =
false; ///< True if low power reset - flash write issues
bool lockStatusNeoPixel; ///< True if status LED is using the status neopixel
bool lockStatusDotStar; ///< True if status LED is using the status dotstar
bool lockStatusLED; ///< True if status LED is using the built-in LED
Expand Down
168 changes: 117 additions & 51 deletions src/provisioning/tinyusb/Wippersnapper_FS.cpp
Original file line number Diff line number Diff line change
Expand Up @@ -97,6 +97,7 @@ Wippersnapper_FS::Wippersnapper_FS() {
WS_DEBUG_PRINTLN(project_dependencies);
WS_DEBUG_PRINTLN("*********************");
WS_PRINTER.flush();
delay(50); // give host a chance to finish reading serial buffer
#endif
// Detach USB device during init.
TinyUSBDevice.detach();
Expand All @@ -105,17 +106,33 @@ Wippersnapper_FS::Wippersnapper_FS() {

// If a filesystem does not already exist - attempt to initialize a new
// filesystem
if (!initFilesystem() && !initFilesystem(true)) {
setStatusLEDColor(RED);
fsHalt("ERROR Initializing Filesystem");
if (!initFilesystem()) {
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I am confused about tracing the brownout detection throughout the FS class.

Could you help clarify the following:

  1. I see brownOutCausedReset is set within get_and_print_reset_reason_for_cpu().
  2. When does this function get called within FS? I don't see any calls outwards to this function, only the boolean brownOutCausedReset which isn't a function

if (WS.brownOutCausedReset) {
// try once more for good measure
delay(10); // let power stablise after failure
if (!initFilesystem()) {
// no lights, save power as we're probably on a low battery
fsHalt("Brownout detected. Couldn't initialise filesystem.");
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Could you please add some descriptive text/instructions on what to do if we couldn't recreate the FS after a brownout?

}
} else if (!WS.brownOutCausedReset && !initFilesystem(true)) {
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If a brownout was detected, all the handling for this was performed inside the if condition above and we don't need to work with/handle it anymore.

Consider changing this to an if and only handle the initFileSystem(true case.

setStatusLEDColor(RED);
fsHalt("ERROR Initializing Filesystem");
}
}

// Initialize USB-MSD
initUSBMSC();

// If we created a new filesystem, halt until user RESETs device.
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if (_freshFS)
fsHalt("New filesystem created! Press the reset button on your board.");
{
WS_DEBUG_PRINTLN("New filesystem created! Resetting the board shortly...");
WS.enableWDT(500);
while (1)
{
delay(1000);
}
Comment on lines +131 to +134
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This is great, I like the idea of resetting instead of instructing the user to reset!

Shorten this by doing:

for (;;) delay(1000);

}
}

/************************************************************/
Expand Down Expand Up @@ -159,32 +176,39 @@ bool Wippersnapper_FS::initFilesystem(bool force_format) {
if (!wipperFatFs.begin(&flash))
return false;

//TODO: Don't do this unless we need the space and createSecrets fails
// If CircuitPython was previously installed - erase CPY FS
eraseCPFS();

// If WipperSnapper was previously installed - remove the
// wippersnapper_boot_out.txt file
eraseBootFile();
// Also, should probably relabel drive to WIPPER if CIRCUITPY was there
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Would it be possible to do this within eraseCPFS, as the vlume was likely named CIRCUITPY?

// using setVolumeLabel(), but note the FS must be unmounted first

// No file indexing on macOS
wipperFatFs.mkdir("/.fseventsd/");
File32 writeFile = wipperFatFs.open("/.fseventsd/no_log", FILE_WRITE);
if (!writeFile)
return false;
writeFile.close();

writeFile = wipperFatFs.open("/.metadata_never_index", FILE_WRITE);
if (!writeFile)
return false;
writeFile.close();
if (!wipperFatFs.exists("/.fseventsd/no_log"))
{
wipperFatFs.mkdir("/.fseventsd/");
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While we're in it, let's refactor out the macOS-specific handling to a new function, handleMacOS(). This gives us room for handling other OS like Windows, Linux, ChromeOs the same way.

File32 writeFile = wipperFatFs.open("/.fseventsd/no_log", FILE_WRITE);
if (!writeFile)
return false;
writeFile.close();
}

writeFile = wipperFatFs.open("/.Trashes", FILE_WRITE);
if (!writeFile)
return false;
writeFile.close();
if (!wipperFatFs.exists("/.metadata_never_index"))
{
File32 writeFile = wipperFatFs.open("/.metadata_never_index", FILE_WRITE);
if (!writeFile)
return false;
writeFile.close();
}
if (!wipperFatFs.exists("/.Trashes"))
{
File32 writeFile = wipperFatFs.open("/.Trashes", FILE_WRITE);
if (!writeFile)
return false;
writeFile.close();
}

// Create wippersnapper_boot_out.txt file
if (!createBootFile())
if (!createBootFile() && !WS.brownOutCausedReset)
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Do we need to check if a brownout happened here?

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We still check the bootlog contents in createBootfile, and print if there is a discrepency. In the event of a failure to write bootlog, assuming the secrets are still valid, we don't want to call it a failure by returning false

return false;

// Check if secrets.json file already exists
Expand Down Expand Up @@ -241,6 +265,9 @@ bool Wippersnapper_FS::configFileExists() {
*/
/**************************************************************************/
void Wippersnapper_FS::eraseCPFS() {
if (WS.brownOutCausedReset){
return; // Can't serial print here, in next PR check we're not out of space
}
if (wipperFatFs.exists("/boot_out.txt")) {
wipperFatFs.remove("/boot_out.txt");
wipperFatFs.remove("/code.py");
Expand Down Expand Up @@ -269,44 +296,66 @@ void Wippersnapper_FS::eraseBootFile() {
bool Wippersnapper_FS::createBootFile() {
bool is_success = false;
char sMAC[18] = {0};
String newContent;

File32 bootFile = wipperFatFs.open("/wipper_boot_out.txt", FILE_WRITE);
if (bootFile) {
bootFile.println("Adafruit.io WipperSnapper");
// Generate new content
newContent += "Adafruit.io WipperSnapper\n";
newContent += "Firmware Version: " + String(WS_VERSION) + "\n";
newContent += "Board ID: " + String(BOARD_ID) + "\n";
sprintf(sMAC, "%02X:%02X:%02X:%02X:%02X:%02X", WS._macAddr[0],
WS._macAddr[1], WS._macAddr[2], WS._macAddr[3], WS._macAddr[4],
WS._macAddr[5]);
newContent += "MAC Address: " + String(sMAC) + "\n";

bootFile.print("Firmware Version: ");
bootFile.println(WS_VERSION);
#if PRINT_DEPENDENCIES
newContent += ("Build dependencies:\n");
newContent += (project_dependencies);
newContent += ("\n");
#endif

bootFile.print("Board ID: ");
bootFile.println(BOARD_ID);
#ifdef ARDUINO_ARCH_ESP32
newContent += "ESP-IDF Version: " + String(ESP.getSdkVersion()) + "\n";
newContent += "ESP32 Core Version: " + String(ESP.getCoreVersion()) + "\n";
#endif

sprintf(sMAC, "%02X:%02X:%02X:%02X:%02X:%02X", WS._macAddr[0],
WS._macAddr[1], WS._macAddr[2], WS._macAddr[3], WS._macAddr[4],
WS._macAddr[5]);
bootFile.print("MAC Address: ");
bootFile.println(sMAC);
// Check if the file exists and read its content
File32 bootFile = wipperFatFs.open("/wipper_boot_out.txt", FILE_READ);
if (bootFile) {
String existingContent;
while (bootFile.available()) {
existingContent += char(bootFile.read());
}
bootFile.close();

#if PRINT_DEPENDENCIES
bootFile.println("Build dependencies:");
bootFile.println(project_dependencies);
#endif
// Compare existing content with new content
if (existingContent == newContent) {
WS_DEBUG_PRINTLN("INFO: wipper_boot_out.txt already exists with the "
"same content.");
return true; // No need to overwrite
} else {
WS_DEBUG_PRINTLN("INFO: wipper_boot_out.txt exists but with different "
"content. Overwriting...");
}
} else {
WS_DEBUG_PRINTLN("INFO: could not open wipper_boot_out.txt for reading. "
"Creating new file...");
}

// Print ESP-specific info to boot file
#ifdef ARDUINO_ARCH_ESP32
// Get version of ESP-IDF
bootFile.print("ESP-IDF Version: ");
bootFile.println(ESP.getSdkVersion());
// Get version of this core
bootFile.print("ESP32 Core Version: ");
bootFile.println(ESP.getCoreVersion());
#endif
if (WS.brownOutCausedReset){
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Why are we checking for a brownout here, again?

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@tyeth tyeth Nov 15, 2024

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We wanted to inform that the bootlog isn't correct but we can't update it. I guess I could return true instead, or comment this as to why

return false;
}

// Overwrite the file with new content
bootFile = wipperFatFs.open("/wipper_boot_out.txt", FILE_WRITE);
if (bootFile) {
bootFile.print(newContent);
bootFile.flush();
bootFile.close();
is_success = true;
} else {
bootFile.close();
WS_DEBUG_PRINTLN("ERROR: Unable to open wipper_boot_out.txt for writing!");
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Don't think we'll see this except in debug builds with Tx monitored. The next PR (#655) will resolve this.

}

return is_success;
}

Expand Down Expand Up @@ -337,7 +386,6 @@ void Wippersnapper_FS::createSecretsFile() {
// Flush and close file
secretsFile.flush();
secretsFile.close();
delay(2500);

// Signal to user that action must be taken (edit secrets.json)
writeToBootOut(
Expand All @@ -349,6 +397,8 @@ void Wippersnapper_FS::createSecretsFile() {
"Please edit it to reflect your Adafruit IO and network credentials. "
"When you're done, press RESET on the board.");
#endif
delay(500); // previously 2500
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Why are we decreasing this delay? It was from TinyUSB Arduino

initUSBMSC(); // re-init USB MSC to show new file to user for editing
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  1. Where did we detach USB MSC?
  2. Is this called twice? We shouldn't be.
  • Do we call this again, outside of this function, after this is called?

fsHalt("ERROR: Please edit the secrets.json file. Then, reset your board.");
}

Expand All @@ -367,7 +417,23 @@ void Wippersnapper_FS::parseSecrets() {
// Attempt to deserialize the file's JSON document
JsonDocument doc;
DeserializationError error = deserializeJson(doc, secretsFile);
if (error) {
if (error == DeserializationError::EmptyInput)
{
if (WS.brownOutCausedReset)
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A special case to handle the brownout detection shouldn't be located here.

We should only handle the brownout detection/errors within the class constructor/init.

{
fsHalt("ERROR: Empty secrets.json file, can't recreate due to brownout - recharge or must be fixed manually.");
}
else
{
// TODO: Can't serial print here, in next PR check we're not out of space
WS_DEBUG_PRINTLN("ERROR: Empty secrets.json file, recreating...");
secretsFile.close();
wipperFatFs.remove("/secrets.json");
createSecretsFile(); // calls fsHalt
}
}
else if (error)
{
fsHalt(String("ERROR: Unable to parse secrets.json file - "
"deserializeJson() failed with code") +
error.c_str());
Expand Down
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