WebUI config stuff

2022-01-09 20:51:16 +01:00
parent 2e3a9f6e3f
commit ffe943f187
6 changed files with 262 additions and 70 deletions
--- a/Software/ChainLube/src/config.cpp
+++ b/Software/ChainLube/src/config.cpp
@@ -0,0 +1,44 @@
+#include <Arduino.h>
+#include "config.h"
+
+LubeConfig_t LubeConfig;
+
+void StoreConfig_EEPROM()
+{
+  LubeConfig.checksum = 0;
+  LubeConfig.checksum = Checksum_EEPROM((uint8_t *)&LubeConfig, sizeof(LubeConfig));
+
+  EEPROM.begin(512);
+  EEPROM.put(0, LubeConfig);
+  EEPROM.commit();
+  EEPROM.end();
+}
+
+void GetConfig_EEPROM()
+{
+  EEPROM.begin(512);
+  EEPROM.get(0, LubeConfig);
+  EEPROM.end();
+
+  uint32_t checksum = LubeConfig.checksum;
+  LubeConfig.checksum = 0;
+
+  if (Checksum_EEPROM((uint8_t *)&LubeConfig, sizeof(LubeConfig)) == checksum)
+    Serial.printf("Checksum OK");
+  else
+    Serial.printf("Checksum BAD");
+}
+
+uint32_t Checksum_EEPROM(uint8_t const *data, size_t len)
+{
+  if (data == NULL)
+    return 0;
+  uint32_t crc = 0;
+  while (len--)
+  {
+    crc ^= *data++;
+    for (uint8_t k = 0; k < 8; k++)
+      crc = crc & 1 ? (crc >> 1) ^ 0xb2 : crc >> 1;
+  }
+  return crc ^ 0xff;
+}