1 files changed, 77 insertions, 0 deletions
diff --git a/include/bcb.h b/include/bcb.h
new file mode 100644
index 00000000000..a56b547595a
--- /dev/null
+++ b/include/bcb.h
@@ -0,0 +1,77 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2020 Eugeniu Rosca <rosca.eugeniu@gmail.com>
+ *
+ * Android Bootloader Control Block Header
+ */
+
+#ifndef __BCB_H__
+#define __BCB_H__
+
+#include <part.h>
+
+enum bcb_field {
+	BCB_FIELD_COMMAND,
+	BCB_FIELD_STATUS,
+	BCB_FIELD_RECOVERY,
+	BCB_FIELD_STAGE
+};
+
+#if IS_ENABLED(CONFIG_CMD_BCB)
+
+int bcb_find_partition_and_load(const char *iface,
+				int devnum, char *partp);
+int bcb_load(struct blk_desc *block_description,
+	     struct disk_partition *disk_partition);
+int bcb_set(enum bcb_field field, const char *value);
+
+/**
+ * bcb_get() - get the field value.
+ * @field: field to get
+ * @value_out: buffer to copy bcb field value to
+ * @value_size: buffer size to avoid overflow in case
+ *              value_out is smaller then the field value
+ */
+int bcb_get(enum bcb_field field, char *value_out, size_t value_size);
+
+int bcb_store(void);
+void bcb_reset(void);
+
+#else
+
+#include <linux/errno.h>
+
+static inline int bcb_load(struct blk_desc *block_description,
+			   struct disk_partition *disk_partition)
+{
+	return -EOPNOTSUPP;
+}
+
+static inline int bcb_find_partition_and_load(const char *iface,
+					      int devnum, char *partp)
+{
+	return -EOPNOTSUPP;
+}
+
+static inline int bcb_set(enum bcb_field field, const char *value)
+{
+	return -EOPNOTSUPP;
+}
+
+static inline int bcb_get(enum bcb_field field,
+			  char *value_out, size_t value_size)
+{
+	return -EOPNOTSUPP;
+}
+
+static inline int bcb_store(void)
+{
+	return -EOPNOTSUPP;
+}
+
+static inline void bcb_reset(void)
+{
+}
+#endif
+
+#endif /* __BCB_H__ */