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83d290c5 | 1 | /* SPDX-License-Identifier: GPL-2.0+ */ |
170ab110 JH |
2 | /* |
3 | * (C) Copyright 2012 | |
4 | * Joe Hershberger, National Instruments, joe.hershberger@ni.com | |
170ab110 JH |
5 | */ |
6 | ||
7 | #ifndef __ENV_CALLBACK_H__ | |
8 | #define __ENV_CALLBACK_H__ | |
9 | ||
2598090b | 10 | #include <env_flags.h> |
170ab110 JH |
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 CONFIG_ENV_CALLBACK_LIST_STATIC | |
18 | #define CONFIG_ENV_CALLBACK_LIST_STATIC | |
19 | #endif | |
20 | ||
e080d545 JH |
21 | #ifdef CONFIG_SILENT_CONSOLE |
22 | #define SILENT_CALLBACK "silent:silent," | |
23 | #else | |
24 | #define SILENT_CALLBACK | |
25 | #endif | |
26 | ||
c0880485 NK |
27 | #ifdef CONFIG_SPLASHIMAGE_GUARD |
28 | #define SPLASHIMAGE_CALLBACK "splashimage:splashimage," | |
29 | #else | |
30 | #define SPLASHIMAGE_CALLBACK | |
31 | #endif | |
32 | ||
bdf1fe4e JH |
33 | #ifdef CONFIG_REGEX |
34 | #define ENV_DOT_ESCAPE "\\" | |
f7848d90 | 35 | #define ETHADDR_WILDCARD "\\d?" |
bdf1fe4e JH |
36 | #else |
37 | #define ENV_DOT_ESCAPE | |
f7848d90 | 38 | #define ETHADDR_WILDCARD |
bdf1fe4e JH |
39 | #endif |
40 | ||
fd305633 JH |
41 | #ifdef CONFIG_CMD_DNS |
42 | #define DNS_CALLBACK "dnsip:dnsip," | |
43 | #else | |
44 | #define DNS_CALLBACK | |
45 | #endif | |
46 | ||
3b3ea2c5 | 47 | #ifdef CONFIG_CMD_NET |
fd305633 JH |
48 | #define NET_CALLBACKS \ |
49 | "bootfile:bootfile," \ | |
50 | "ipaddr:ipaddr," \ | |
51 | "gatewayip:gatewayip," \ | |
52 | "netmask:netmask," \ | |
53 | "serverip:serverip," \ | |
54 | "nvlan:nvlan," \ | |
55 | "vlan:vlan," \ | |
6e0d26c0 | 56 | DNS_CALLBACK \ |
f7848d90 | 57 | "eth" ETHADDR_WILDCARD "addr:ethaddr," |
fd305633 JH |
58 | #else |
59 | #define NET_CALLBACKS | |
60 | #endif | |
61 | ||
170ab110 JH |
62 | /* |
63 | * This list of callback bindings is static, but may be overridden by defining | |
64 | * a new association in the ".callbacks" environment variable. | |
65 | */ | |
bdf1fe4e JH |
66 | #define ENV_CALLBACK_LIST_STATIC ENV_DOT_ESCAPE ENV_CALLBACK_VAR ":callbacks," \ |
67 | ENV_DOT_ESCAPE ENV_FLAGS_VAR ":flags," \ | |
32057717 | 68 | "baudrate:baudrate," \ |
fd305633 | 69 | NET_CALLBACKS \ |
1cf0a8b2 | 70 | "loadaddr:loadaddr," \ |
e080d545 | 71 | SILENT_CALLBACK \ |
c0880485 | 72 | SPLASHIMAGE_CALLBACK \ |
849d5d9c | 73 | "stdin:console,stdout:console,stderr:console," \ |
de4e4eda | 74 | "serial#:serialno," \ |
170ab110 JH |
75 | CONFIG_ENV_CALLBACK_LIST_STATIC |
76 | ||
77 | struct env_clbk_tbl { | |
78 | const char *name; /* Callback name */ | |
79 | int (*callback)(const char *name, const char *value, enum env_op op, | |
80 | int flags); | |
81 | }; | |
82 | ||
170ab110 JH |
83 | void env_callback_init(ENTRY *var_entry); |
84 | ||
85 | /* | |
86 | * Define a callback that can be associated with variables. | |
87 | * when associated through the ".callbacks" environment variable, the callback | |
88 | * will be executed any time the variable is inserted, overwritten, or deleted. | |
89 | */ | |
f8cfcf1b SW |
90 | #ifdef CONFIG_SPL_BUILD |
91 | #define U_BOOT_ENV_CALLBACK(name, callback) \ | |
3ea664c7 | 92 | static inline __maybe_unused void _u_boot_env_noop_##name(void) \ |
f8cfcf1b SW |
93 | { \ |
94 | (void)callback; \ | |
95 | } | |
96 | #else | |
170ab110 | 97 | #define U_BOOT_ENV_CALLBACK(name, callback) \ |
ef123c52 | 98 | ll_entry_declare(struct env_clbk_tbl, name, env_clbk) = \ |
170ab110 | 99 | {#name, callback} |
f8cfcf1b | 100 | #endif |
170ab110 JH |
101 | |
102 | #endif /* __ENV_CALLBACK_H__ */ |