1 files changed, 73 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/include/env_callback.h b/qemu/roms/u-boot/include/env_callback.h
new file mode 100644
index 000000000..f90a7fa3b
--- /dev/null
+++ b/qemu/roms/u-boot/include/env_callback.h
@@ -0,0 +1,73 @@
+/*
+ * (C) Copyright 2012
+ * Joe Hershberger, National Instruments, joe.hershberger@ni.com
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __ENV_CALLBACK_H__
+#define __ENV_CALLBACK_H__
+
+#include <env_flags.h>
+#include <linker_lists.h>
+#include <search.h>
+
+#define ENV_CALLBACK_VAR ".callbacks"
+
+/* Board configs can define additional static callback bindings */
+#ifndef CONFIG_ENV_CALLBACK_LIST_STATIC
+#define CONFIG_ENV_CALLBACK_LIST_STATIC
+#endif
+
+#ifdef CONFIG_SILENT_CONSOLE
+#define SILENT_CALLBACK "silent:silent,"
+#else
+#define SILENT_CALLBACK
+#endif
+
+#ifdef CONFIG_SPLASHIMAGE_GUARD
+#define SPLASHIMAGE_CALLBACK "splashimage:splashimage,"
+#else
+#define SPLASHIMAGE_CALLBACK
+#endif
+
+/*
+ * This list of callback bindings is static, but may be overridden by defining
+ * a new association in the ".callbacks" environment variable.
+ */
+#define ENV_CALLBACK_LIST_STATIC ENV_CALLBACK_VAR ":callbacks," \
+	ENV_FLAGS_VAR ":flags," \
+	"baudrate:baudrate," \
+	"bootfile:bootfile," \
+	"loadaddr:loadaddr," \
+	SILENT_CALLBACK \
+	SPLASHIMAGE_CALLBACK \
+	"stdin:console,stdout:console,stderr:console," \
+	CONFIG_ENV_CALLBACK_LIST_STATIC
+
+struct env_clbk_tbl {
+	const char *name;		/* Callback name */
+	int (*callback)(const char *name, const char *value, enum env_op op,
+		int flags);
+};
+
+void env_callback_init(ENTRY *var_entry);
+
+/*
+ * Define a callback that can be associated with variables.
+ * when associated through the ".callbacks" environment variable, the callback
+ * will be executed any time the variable is inserted, overwritten, or deleted.
+ */
+#ifdef CONFIG_SPL_BUILD
+#define U_BOOT_ENV_CALLBACK(name, callback) \
+	static inline void _u_boot_env_noop_##name(void) \
+	{ \
+		(void)callback; \
+	}
+#else
+#define U_BOOT_ENV_CALLBACK(name, callback) \
+	ll_entry_declare(struct env_clbk_tbl, name, env_clbk) = \
+	{#name, callback}
+#endif
+
+#endif /* __ENV_CALLBACK_H__ */