Import of the watch repository from Pebble

src/fw/resource/resource_storage_flash.h

@@ -0,0 +1,35 @@
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include "resource_storage.h"
+
+//! @file resource_storage_flash.h
+//!
+//! Functions for flash-based resource storage implementations
+
+typedef struct SystemResourceBank {
+  uint32_t begin;
+  uint32_t end;
+} SystemResourceBank;
+
+//! Get the extents of a resource storage bank which is not currently in use by
+//! the system.
+// TODO PBL-21009: Move this somewhere else.
+const SystemResourceBank *resource_storage_flash_get_unused_bank(void);
+
+bool resource_storage_flash_bytes_are_readonly(const void *bytes);