1 /* SPDX-License-Identifier: GPL-2.0+ */
2 /*
3  * (C) Copyright 2012
4  * Joe Hershberger, National Instruments, joe.hershberger@ni.com
5  */
6 
7 #ifndef __ENV_CALLBACK_H__
8 #define __ENV_CALLBACK_H__
9 
10 #include <env_flags.h>
11 #include <linker_lists.h>
12 #include <search.h>
13 
14 #define ENV_CALLBACK_VAR ".callbacks"
15 
16 /* Board configs can define additional static callback bindings */
17 #ifndef CFG_ENV_CALLBACK_LIST_STATIC
18 #define CFG_ENV_CALLBACK_LIST_STATIC
19 #endif
20 
21 #ifdef CONFIG_SILENT_CONSOLE
22 #define SILENT_CALLBACK "silent:silent,"
23 #else
24 #define SILENT_CALLBACK
25 #endif
26 
27 #ifdef CONFIG_REGEX
28 #define ENV_DOT_ESCAPE "\\"
29 #else
30 #define ENV_DOT_ESCAPE
31 #endif
32 
33 #ifdef CONFIG_CMD_DNS
34 #define DNS_CALLBACK "dnsip:dnsip,"
35 #else
36 #define DNS_CALLBACK
37 #endif
38 
39 #ifdef CONFIG_NET
40 #define NET_CALLBACKS \
41 	"bootfile:bootfile," \
42 	"ipaddr:ipaddr," \
43 	"gatewayip:gatewayip," \
44 	"netmask:netmask," \
45 	"serverip:serverip," \
46 	"nvlan:nvlan," \
47 	"vlan:vlan," \
48 	DNS_CALLBACK \
49 	"eth" ETHADDR_WILDCARD "addr:ethaddr,"
50 #else
51 #define NET_CALLBACKS
52 #endif
53 
54 #ifdef CONFIG_IPV6
55 #define NET6_CALLBACKS \
56 	"ip6addr:ip6addr," \
57 	"serverip6:serverip6," \
58 	"gatewayip6:gatewayip6,"
59 #else
60 #define NET6_CALLBACKS
61 #endif
62 
63 #ifdef CONFIG_BOOTSTD
64 #define BOOTSTD_CALLBACK	"bootmeths:bootmeths,"
65 #else
66 #define BOOTSTD_CALLBACK
67 #endif
68 
69 /*
70  * This list of callback bindings is static, but may be overridden by defining
71  * a new association in the ".callbacks" environment variable.
72  */
73 #define ENV_CALLBACK_LIST_STATIC ENV_DOT_ESCAPE ENV_CALLBACK_VAR ":callbacks," \
74 	ENV_DOT_ESCAPE ENV_FLAGS_VAR ":flags," \
75 	"baudrate:baudrate," \
76 	NET_CALLBACKS \
77 	NET6_CALLBACKS \
78 	BOOTSTD_CALLBACK \
79 	"loadaddr:loadaddr," \
80 	SILENT_CALLBACK \
81 	"stdin:console,stdout:console,stderr:console," \
82 	"serial#:serialno," \
83 	CFG_ENV_CALLBACK_LIST_STATIC
84 
85 #ifndef CONFIG_SPL_BUILD
86 void env_callback_init(struct env_entry *var_entry);
87 #else
env_callback_init(struct env_entry * var_entry)88 static inline void env_callback_init(struct env_entry *var_entry)
89 {
90 }
91 #endif
92 
93 #endif /* __ENV_CALLBACK_H__ */
94