148 lines
4.6 KiB
C++
148 lines
4.6 KiB
C++
/**
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* @file flash_main.cpp
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* @brief Higher-level logic of saving data into internal flash memory
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*
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*
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* @date Sep 19, 2013
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* @author Andrey Belomutskiy, (c) 2012-2015
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*/
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#include <main.h>
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#include "flash_main.h"
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#include "eficonsole.h"
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#include "flash.h"
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#include "rusefi.h"
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#if EFI_TUNER_STUDIO || defined(__DOXYGEN__)
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#include "tunerstudio.h"
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#endif
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#if EFI_INTERNAL_FLASH || defined(__DOXYGEN__)
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#include "engine_controller.h"
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#include "datalogging.h"
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#include "engine.h"
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static bool needToWriteConfiguration = false;
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EXTERN_ENGINE;
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static Logging* logger;
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extern persistent_config_container_s persistentState;
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extern engine_configuration_s *engineConfiguration;
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#define FLASH_ADDR 0x08060000
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#define PERSISTENT_SIZE sizeof(persistent_config_container_s)
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crc_t flashStateCrc(persistent_config_container_s *state) {
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return calc_crc((const crc_t*) &state->persistentConfiguration, sizeof(persistent_config_s));
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}
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void setNeedToWriteConfiguration(void) {
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scheduleMsg(logger, "Scheduling configuration write");
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needToWriteConfiguration = true;
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}
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bool getNeedToWriteConfiguration(void) {
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return needToWriteConfiguration;
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}
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void writeToFlashIfPending() {
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if (!getNeedToWriteConfiguration()) {
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return;
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}
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// todo: technically we need a lock here, realistically we should be fine.
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needToWriteConfiguration = false;
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scheduleMsg(logger, "Writing pending configuration");
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writeToFlashNow();
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}
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extern uint32_t maxLockTime;
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void writeToFlashNow(void) {
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scheduleMsg(logger, " !!!!!!!!!!!!!!!!!!!! BE SURE NOT WRITE WITH IGNITION ON !!!!!!!!!!!!!!!!!!!!");
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persistentState.size = PERSISTENT_SIZE;
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persistentState.version = FLASH_DATA_VERSION;
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scheduleMsg(logger, "flash compatible with %d", persistentState.version);
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crc_t result = flashStateCrc(&persistentState);
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persistentState.value = result;
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scheduleMsg(logger, "Reseting flash: size=%d", PERSISTENT_SIZE);
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flashErase(FLASH_ADDR, PERSISTENT_SIZE);
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scheduleMsg(logger, "Flashing with CRC=%d", result);
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efitimems_t nowMs = currentTimeMillis();
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result = flashWrite(FLASH_ADDR, (const char *) &persistentState, PERSISTENT_SIZE);
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scheduleMsg(logger, "Flash programmed in (ms): %d", currentTimeMillis() - nowMs);
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scheduleMsg(logger, "Flashing result: %d", result);
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maxLockTime = 0;
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}
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static bool isValidCrc(persistent_config_container_s *state) {
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crc_t result = flashStateCrc(state);
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int isValidCrc_b = result == state->value;
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if (!isValidCrc_b) {
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scheduleMsg(logger, "CRC got %d while %d expected", result, state->value);
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}
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return isValidCrc_b;
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}
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static void doResetConfiguration(void) {
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resetConfigurationExt(logger, engineConfiguration->engineType PASS_ENGINE_PARAMETER);
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}
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static bool hasValidEngineType(engine_configuration_s *engineConfiguration) {
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uint32_t ordinal = (uint32_t)engineConfiguration->engineType;
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return ordinal < ET_UNUSED && engineConfiguration->headerMagicValue == HEADER_MAGIC_NUMBER;
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}
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void readFromFlash(void) {
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printMsg(logger, "readFromFlash()");
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flashRead(FLASH_ADDR, (char *) &persistentState, PERSISTENT_SIZE);
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if (!isValidCrc(&persistentState)) {
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printMsg(logger, "Need to reset flash to default due to CRC");
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resetConfigurationExt(logger, DEFAULT_ENGINE_TYPE PASS_ENGINE_PARAMETER);
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} else if (persistentState.version == FLASH_DATA_VERSION && persistentState.size == PERSISTENT_SIZE) {
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printMsg(logger, "Got valid configuration from flash!");
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applyNonPersistentConfiguration(logger PASS_ENGINE_PARAMETER);
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} else if (hasValidEngineType(engineConfiguration)) {
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printMsg(logger, "Resetting but saving engine type [%d]", engineConfiguration->engineType);
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resetConfigurationExt(logger, engineConfiguration->engineType PASS_ENGINE_PARAMETER);
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} else {
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printMsg(logger, "Need to reset flash to default due to version change");
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resetConfigurationExt(logger, DEFAULT_ENGINE_TYPE PASS_ENGINE_PARAMETER);
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}
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// we can only change the state after the CRC check
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engineConfiguration->firmwareVersion = getRusEfiVersion();
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}
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static void rewriteConfig(Engine *engine) {
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doResetConfiguration();
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writeToFlashNow();
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}
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void initFlash(Logging *sharedLogger, Engine *engine) {
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logger = sharedLogger;
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addConsoleAction("readconfig", readFromFlash);
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/**
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* This would write NOW (you should not be doing this while connected to real engine)
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*/
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addConsoleAction("writeconfig", writeToFlashNow);
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#if EFI_TUNER_STUDIO || defined(__DOXYGEN__)
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/**
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* This would schedule write to flash once the engine is stopped
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*/
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addConsoleAction("burnconfig", requestBurn);
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#endif
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addConsoleAction("resetconfig", doResetConfiguration);
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addConsoleActionP("rewriteconfig", (VoidPtr)rewriteConfig, engine);
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}
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#endif /* EFI_INTERNAL_FLASH */
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