MAGIC value for powerReason should be stored in RTC backup on Horus (#7096)

- Allows the radio main application to start correctly when coming from an app in RAM - Refactoring of the `UNEXPECTED_SHUTDOWN()` process - Saves the RTC battery as BACKUP RAM is not needed on normal shutdown - On PWR OFF on an ALERT, the radio won't show the next alert before shutting down - Bootloader flashable through the SD Manager
2019-11-21 11:50:33 +01:00
parent 103534bdcf
commit 4cdd17f0d7
41 changed files with 235 additions and 190 deletions
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) OpenTX
+ *
+ * Based on code named
+ *   th9x - http://code.google.com/p/th9x
+ *   er9x - http://code.google.com/p/er9x
+ *   gruvin9x - http://code.google.com/p/gruvin9x
+ *
+ * License GPLv2: http://www.gnu.org/licenses/gpl-2.0.html
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include "opentx.h"
+
+namespace Backup {
+#define BACKUP
+#include "datastructs.h"
+PACK(struct RamBackupUncompressed {
+  ModelData model;
+  RadioData radio;
+});
+#undef BACKUP
+};
+
+#include "datacopy.cpp"
+
+Backup::RamBackupUncompressed ramBackupUncompressed __DMA;
+
+#if defined(SIMU)
+RamBackup _ramBackup;
+RamBackup * ramBackup = &_ramBackup;
+#else
+RamBackup * ramBackup = (RamBackup *)BKPSRAM_BASE;
+#endif
+
+void rambackupWrite()
+{
+  copyRadioData(&ramBackupUncompressed.radio, &g_eeGeneral);
+  copyModelData(&ramBackupUncompressed.model, &g_model);
+  ramBackup->size = compress(ramBackup->data, sizeof(ramBackup->data), (const uint8_t *)&ramBackupUncompressed, sizeof(ramBackupUncompressed));
+  TRACE("RamBackupWrite sdsize=%d backupsize=%d rlcsize=%d", sizeof(ModelData)+sizeof(RadioData), sizeof(Backup::RamBackupUncompressed), ramBackup->size);
+}
+
+bool rambackupRestore()
+{
+  if (ramBackup->size == 0)
+    return false;
+
+  if (uncompress((uint8_t *)&ramBackupUncompressed, sizeof(ramBackupUncompressed), ramBackup->data, ramBackup->size) != sizeof(ramBackupUncompressed))
+    return false;
+
+  memset(&g_eeGeneral, 0, sizeof(g_eeGeneral));
+  memset(&g_model, 0, sizeof(g_model));
+  copyRadioData(&g_eeGeneral, &ramBackupUncompressed.radio);
+  copyModelData(&g_model, &ramBackupUncompressed.model);
+  return true;
+}