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Fork of the espurna firmware for `mhsw` switches
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mhsw-espurna/code/espurna/debug.ino

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/*
DEBUG MODULE
Copyright (C) 2016-2018 by Xose Pérez <xose dot perez at gmail dot com>
*/
#if DEBUG_SUPPORT
#include <stdio.h>
#include <stdarg.h>
#include <EEPROM.h>
extern "C" {
#include "user_interface.h"
}
#if DEBUG_UDP_SUPPORT
#include <WiFiUdp.h>
WiFiUDP _udp_debug;
#if DEBUG_UDP_PORT == 514
char _udp_header[40] = {0};
#endif
#endif
void _debugSend(char * message) {
#if DEBUG_ADD_TIMESTAMP
static bool add_timestamp = true;
char timestamp[10] = {0};
if (add_timestamp) snprintf_P(timestamp, sizeof(timestamp), PSTR("[%06lu] "), millis() % 1000000);
add_timestamp = (message[strlen(message)-1] == 10) || (message[strlen(message)-1] == 13);
#endif
#if DEBUG_SERIAL_SUPPORT
#if DEBUG_ADD_TIMESTAMP
DEBUG_PORT.printf(timestamp);
#endif
DEBUG_PORT.printf(message);
#endif
#if DEBUG_UDP_SUPPORT
#if SYSTEM_CHECK_ENABLED
if (systemCheck()) {
#endif
_udp_debug.beginPacket(DEBUG_UDP_IP, DEBUG_UDP_PORT);
#if DEBUG_UDP_PORT == 514
_udp_debug.write(_udp_header);
#endif
_udp_debug.write(message);
_udp_debug.endPacket();
delay(1); // https://github.com/xoseperez/espurna/issues/438
#if SYSTEM_CHECK_ENABLED
}
#endif
#endif
#if DEBUG_TELNET_SUPPORT
#if DEBUG_ADD_TIMESTAMP
_telnetWrite(timestamp, strlen(timestamp));
#endif
_telnetWrite(message, strlen(message));
#endif
#if DEBUG_WEB_SUPPORT
if (wsConnected() && (getFreeHeap() > 10000)) {
String m = String(message);
m.replace("\"", "&quot;");
m.replace("{", "&#123");
m.replace("}", "&#125");
char buffer[m.length() + 24];
#if DEBUG_ADD_TIMESTAMP
snprintf_P(buffer, sizeof(buffer), PSTR("{\"weblog\": \"%s%s\"}"), timestamp, m.c_str());
#else
snprintf_P(buffer, sizeof(buffer), PSTR("{\"weblog\": \"%s\"}"), m.c_str());
#endif
wsSend(buffer);
}
#endif
}
// -----------------------------------------------------------------------------
void debugSend(const char * format, ...) {
va_list args;
va_start(args, format);
char test[1];
int len = ets_vsnprintf(test, 1, format, args) + 1;
char * buffer = new char[len];
ets_vsnprintf(buffer, len, format, args);
va_end(args);
_debugSend(buffer);
delete[] buffer;
}
void debugSend_P(PGM_P format_P, ...) {
char format[strlen_P(format_P)+1];
memcpy_P(format, format_P, sizeof(format));
va_list args;
va_start(args, format_P);
char test[1];
int len = ets_vsnprintf(test, 1, format, args) + 1;
char * buffer = new char[len];
ets_vsnprintf(buffer, len, format, args);
va_end(args);
_debugSend(buffer);
delete[] buffer;
}
#if DEBUG_WEB_SUPPORT
void debugSetup() {
wsOnSendRegister([](JsonObject& root) {
root["dbgVisible"] = 1;
});
wsOnActionRegister([](uint32_t client_id, const char * action, JsonObject& data) {
if (strcmp(action, "dbgcmd") == 0) {
const char* command = data.get<const char*>("command");
char buffer[strlen(command) + 2];
snprintf(buffer, sizeof(buffer), "%s\n", command);
settingsInject((void*) buffer, strlen(buffer));
}
});
#if DEBUG_UDP_SUPPORT
#if DEBUG_UDP_PORT == 514
snprintf_P(_udp_header, sizeof(_udp_header), PSTR("<%u>%s ESPurna[0]: "), DEBUG_UDP_FAC_PRI, getSetting("hostname").c_str());
#endif
#endif
}
#endif // DEBUG_WEB_SUPPORT
// -----------------------------------------------------------------------------
// Save crash info
// Taken from krzychb EspSaveCrash
// https://github.com/krzychb/EspSaveCrash
// -----------------------------------------------------------------------------
#define SAVE_CRASH_EEPROM_OFFSET 0x0100 // initial address for crash data
/**
* Structure of the single crash data set
*
* 1. Crash time
* 2. Restart reason
* 3. Exception cause
* 4. epc1
* 5. epc2
* 6. epc3
* 7. excvaddr
* 8. depc
* 9. adress of stack start
* 10. adress of stack end
* 11. stack trace bytes
* ...
*/
#define SAVE_CRASH_CRASH_TIME 0x00 // 4 bytes
#define SAVE_CRASH_RESTART_REASON 0x04 // 1 byte
#define SAVE_CRASH_EXCEPTION_CAUSE 0x05 // 1 byte
#define SAVE_CRASH_EPC1 0x06 // 4 bytes
#define SAVE_CRASH_EPC2 0x0A // 4 bytes
#define SAVE_CRASH_EPC3 0x0E // 4 bytes
#define SAVE_CRASH_EXCVADDR 0x12 // 4 bytes
#define SAVE_CRASH_DEPC 0x16 // 4 bytes
#define SAVE_CRASH_STACK_START 0x1A // 4 bytes
#define SAVE_CRASH_STACK_END 0x1E // 4 bytes
#define SAVE_CRASH_STACK_TRACE 0x22 // variable
/**
* Save crash information in EEPROM
* This function is called automatically if ESP8266 suffers an exception
* It should be kept quick / consise to be able to execute before hardware wdt may kick in
*/
extern "C" void custom_crash_callback(struct rst_info * rst_info, uint32_t stack_start, uint32_t stack_end ) {
// This method assumes EEPROM has already been initialized
// which is the first thing ESPurna does
// write crash time to EEPROM
uint32_t crash_time = millis();
EEPROM.put(SAVE_CRASH_EEPROM_OFFSET + SAVE_CRASH_CRASH_TIME, crash_time);
// write reset info to EEPROM
EEPROM.write(SAVE_CRASH_EEPROM_OFFSET + SAVE_CRASH_RESTART_REASON, rst_info->reason);
EEPROM.write(SAVE_CRASH_EEPROM_OFFSET + SAVE_CRASH_EXCEPTION_CAUSE, rst_info->exccause);
// write epc1, epc2, epc3, excvaddr and depc to EEPROM
EEPROM.put(SAVE_CRASH_EEPROM_OFFSET + SAVE_CRASH_EPC1, rst_info->epc1);
EEPROM.put(SAVE_CRASH_EEPROM_OFFSET + SAVE_CRASH_EPC2, rst_info->epc2);
EEPROM.put(SAVE_CRASH_EEPROM_OFFSET + SAVE_CRASH_EPC3, rst_info->epc3);
EEPROM.put(SAVE_CRASH_EEPROM_OFFSET + SAVE_CRASH_EXCVADDR, rst_info->excvaddr);
EEPROM.put(SAVE_CRASH_EEPROM_OFFSET + SAVE_CRASH_DEPC, rst_info->depc);
// write stack start and end address to EEPROM
EEPROM.put(SAVE_CRASH_EEPROM_OFFSET + SAVE_CRASH_STACK_START, stack_start);
EEPROM.put(SAVE_CRASH_EEPROM_OFFSET + SAVE_CRASH_STACK_END, stack_end);
// write stack trace to EEPROM
int16_t current_address = SAVE_CRASH_EEPROM_OFFSET + SAVE_CRASH_STACK_TRACE;
for (uint32_t i = stack_start; i < stack_end; i++) {
byte* byteValue = (byte*) i;
EEPROM.write(current_address++, *byteValue);
}
EEPROM.commit();
}
/**
* Clears crash info
*/
void debugClearCrashInfo() {
uint32_t crash_time = 0xFFFFFFFF;
EEPROM.put(SAVE_CRASH_EEPROM_OFFSET + SAVE_CRASH_CRASH_TIME, crash_time);
EEPROM.commit();
}
/**
* Print out crash information that has been previusly saved in EEPROM
*/
void debugDumpCrashInfo() {
uint32_t crash_time;
EEPROM.get(SAVE_CRASH_EEPROM_OFFSET + SAVE_CRASH_CRASH_TIME, crash_time);
if ((crash_time == 0) || (crash_time == 0xFFFFFFFF)) {
DEBUG_MSG_P(PSTR("[DEBUG] No crash info\n"));
return;
}
DEBUG_MSG_P(PSTR("[DEBUG] Latest crash was at %lu ms after boot\n"), crash_time);
DEBUG_MSG_P(PSTR("[DEBUG] Reason of restart: %u\n"), EEPROM.read(SAVE_CRASH_EEPROM_OFFSET + SAVE_CRASH_RESTART_REASON));
DEBUG_MSG_P(PSTR("[DEBUG] Exception cause: %u\n"), EEPROM.read(SAVE_CRASH_EEPROM_OFFSET + SAVE_CRASH_EXCEPTION_CAUSE));
uint32_t epc1, epc2, epc3, excvaddr, depc;
EEPROM.get(SAVE_CRASH_EEPROM_OFFSET + SAVE_CRASH_EPC1, epc1);
EEPROM.get(SAVE_CRASH_EEPROM_OFFSET + SAVE_CRASH_EPC2, epc2);
EEPROM.get(SAVE_CRASH_EEPROM_OFFSET + SAVE_CRASH_EPC3, epc3);
EEPROM.get(SAVE_CRASH_EEPROM_OFFSET + SAVE_CRASH_EXCVADDR, excvaddr);
EEPROM.get(SAVE_CRASH_EEPROM_OFFSET + SAVE_CRASH_DEPC, depc);
DEBUG_MSG_P(PSTR("[DEBUG] epc1=0x%08x epc2=0x%08x epc3=0x%08x\n"), epc1, epc2, epc3);
DEBUG_MSG_P(PSTR("[DEBUG] excvaddr=0x%08x depc=0x%08x\n"), excvaddr, depc);
uint32_t stack_start, stack_end;
EEPROM.get(SAVE_CRASH_EEPROM_OFFSET + SAVE_CRASH_STACK_START, stack_start);
EEPROM.get(SAVE_CRASH_EEPROM_OFFSET + SAVE_CRASH_STACK_END, stack_end);
DEBUG_MSG_P(PSTR("[DEBUG] >>>stack>>>\n[DEBUG] "));
int16_t current_address = SAVE_CRASH_EEPROM_OFFSET + SAVE_CRASH_STACK_TRACE;
int16_t stack_len = stack_end - stack_start;
uint32_t stack_trace;
for (int16_t i = 0; i < stack_len; i += 0x10) {
DEBUG_MSG_P(PSTR("%08x: "), stack_start + i);
for (byte j = 0; j < 4; j++) {
EEPROM.get(current_address, stack_trace);
DEBUG_MSG_P(PSTR("%08x "), stack_trace);
current_address += 4;
}
DEBUG_MSG_P(PSTR("\n[DEBUG] "));
}
DEBUG_MSG_P(PSTR("<<<stack<<<\n"));
}
#endif // DEBUG_SUPPORT