1 files changed, 77 insertions, 0 deletions
diff --git a/include/env_callback.h b/include/env_callback.h
new file mode 100644
index 0000000..74da20e
--- /dev/null
+++ b/include/env_callback.h
@@ -0,0 +1,77 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * (C) Copyright 2012
+ * Joe Hershberger, National Instruments, joe.hershberger@ni.com
+ */
+
+#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
+
+#ifdef CONFIG_REGEX
+#define ENV_DOT_ESCAPE "\\"
+#else
+#define ENV_DOT_ESCAPE
+#endif
+
+#ifdef CONFIG_CMD_DNS
+#define DNS_CALLBACK "dnsip:dnsip,"
+#else
+#define DNS_CALLBACK
+#endif
+
+#ifdef CONFIG_NET
+#define NET_CALLBACKS \
+	"bootfile:bootfile," \
+	"ipaddr:ipaddr," \
+	"gatewayip:gatewayip," \
+	"netmask:netmask," \
+	"serverip:serverip," \
+	"nvlan:nvlan," \
+	"vlan:vlan," \
+	DNS_CALLBACK \
+	"eth" ETHADDR_WILDCARD "addr:ethaddr,"
+#else
+#define NET_CALLBACKS
+#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_DOT_ESCAPE ENV_CALLBACK_VAR ":callbacks," \
+	ENV_DOT_ESCAPE ENV_FLAGS_VAR ":flags," \
+	"baudrate:baudrate," \
+	NET_CALLBACKS \
+	"loadaddr:loadaddr," \
+	SILENT_CALLBACK \
+	SPLASHIMAGE_CALLBACK \
+	"stdin:console,stdout:console,stderr:console," \
+	"serial#:serialno," \
+	CONFIG_ENV_CALLBACK_LIST_STATIC
+
+void env_callback_init(struct env_entry *var_entry);
+
+#endif /* __ENV_CALLBACK_H__ */