1170ab110SJoe Hershberger /* 2170ab110SJoe Hershberger * (C) Copyright 2012 3170ab110SJoe Hershberger * Joe Hershberger, National Instruments, joe.hershberger@ni.com 4170ab110SJoe Hershberger * 51a459660SWolfgang Denk * SPDX-License-Identifier: GPL-2.0+ 6170ab110SJoe Hershberger */ 7170ab110SJoe Hershberger 8170ab110SJoe Hershberger #ifndef __ENV_CALLBACK_H__ 9170ab110SJoe Hershberger #define __ENV_CALLBACK_H__ 10170ab110SJoe Hershberger 112598090bSJoe Hershberger #include <env_flags.h> 12170ab110SJoe Hershberger #include <linker_lists.h> 13170ab110SJoe Hershberger #include <search.h> 14170ab110SJoe Hershberger 15170ab110SJoe Hershberger #define ENV_CALLBACK_VAR ".callbacks" 16170ab110SJoe Hershberger 17170ab110SJoe Hershberger /* Board configs can define additional static callback bindings */ 18170ab110SJoe Hershberger #ifndef CONFIG_ENV_CALLBACK_LIST_STATIC 19170ab110SJoe Hershberger #define CONFIG_ENV_CALLBACK_LIST_STATIC 20170ab110SJoe Hershberger #endif 21170ab110SJoe Hershberger 22e080d545SJoe Hershberger #ifdef CONFIG_SILENT_CONSOLE 23e080d545SJoe Hershberger #define SILENT_CALLBACK "silent:silent," 24e080d545SJoe Hershberger #else 25e080d545SJoe Hershberger #define SILENT_CALLBACK 26e080d545SJoe Hershberger #endif 27e080d545SJoe Hershberger 28c0880485SNikita Kiryanov #ifdef CONFIG_SPLASHIMAGE_GUARD 29c0880485SNikita Kiryanov #define SPLASHIMAGE_CALLBACK "splashimage:splashimage," 30c0880485SNikita Kiryanov #else 31c0880485SNikita Kiryanov #define SPLASHIMAGE_CALLBACK 32c0880485SNikita Kiryanov #endif 33c0880485SNikita Kiryanov 34bdf1fe4eSJoe Hershberger #ifdef CONFIG_REGEX 35bdf1fe4eSJoe Hershberger #define ENV_DOT_ESCAPE "\\" 36bdf1fe4eSJoe Hershberger #else 37bdf1fe4eSJoe Hershberger #define ENV_DOT_ESCAPE 38bdf1fe4eSJoe Hershberger #endif 39bdf1fe4eSJoe Hershberger 40*fd305633SJoe Hershberger #ifdef CONFIG_CMD_DNS 41*fd305633SJoe Hershberger #define DNS_CALLBACK "dnsip:dnsip," 42*fd305633SJoe Hershberger #else 43*fd305633SJoe Hershberger #define DNS_CALLBACK 44*fd305633SJoe Hershberger #endif 45*fd305633SJoe Hershberger 46*fd305633SJoe Hershberger #ifdef CONFIG_NET 47*fd305633SJoe Hershberger #define NET_CALLBACKS \ 48*fd305633SJoe Hershberger "bootfile:bootfile," \ 49*fd305633SJoe Hershberger "ipaddr:ipaddr," \ 50*fd305633SJoe Hershberger "gatewayip:gatewayip," \ 51*fd305633SJoe Hershberger "netmask:netmask," \ 52*fd305633SJoe Hershberger "serverip:serverip," \ 53*fd305633SJoe Hershberger "nvlan:nvlan," \ 54*fd305633SJoe Hershberger "vlan:vlan," \ 55*fd305633SJoe Hershberger DNS_CALLBACK 56*fd305633SJoe Hershberger #else 57*fd305633SJoe Hershberger #define NET_CALLBACKS 58*fd305633SJoe Hershberger #endif 59*fd305633SJoe Hershberger 60170ab110SJoe Hershberger /* 61170ab110SJoe Hershberger * This list of callback bindings is static, but may be overridden by defining 62170ab110SJoe Hershberger * a new association in the ".callbacks" environment variable. 63170ab110SJoe Hershberger */ 64bdf1fe4eSJoe Hershberger #define ENV_CALLBACK_LIST_STATIC ENV_DOT_ESCAPE ENV_CALLBACK_VAR ":callbacks," \ 65bdf1fe4eSJoe Hershberger ENV_DOT_ESCAPE ENV_FLAGS_VAR ":flags," \ 6632057717SJoe Hershberger "baudrate:baudrate," \ 67*fd305633SJoe Hershberger NET_CALLBACKS \ 681cf0a8b2SJoe Hershberger "loadaddr:loadaddr," \ 69e080d545SJoe Hershberger SILENT_CALLBACK \ 70c0880485SNikita Kiryanov SPLASHIMAGE_CALLBACK \ 71849d5d9cSJoe Hershberger "stdin:console,stdout:console,stderr:console," \ 72170ab110SJoe Hershberger CONFIG_ENV_CALLBACK_LIST_STATIC 73170ab110SJoe Hershberger 74170ab110SJoe Hershberger struct env_clbk_tbl { 75170ab110SJoe Hershberger const char *name; /* Callback name */ 76170ab110SJoe Hershberger int (*callback)(const char *name, const char *value, enum env_op op, 77170ab110SJoe Hershberger int flags); 78170ab110SJoe Hershberger }; 79170ab110SJoe Hershberger 80170ab110SJoe Hershberger void env_callback_init(ENTRY *var_entry); 81170ab110SJoe Hershberger 82170ab110SJoe Hershberger /* 83170ab110SJoe Hershberger * Define a callback that can be associated with variables. 84170ab110SJoe Hershberger * when associated through the ".callbacks" environment variable, the callback 85170ab110SJoe Hershberger * will be executed any time the variable is inserted, overwritten, or deleted. 86170ab110SJoe Hershberger */ 87f8cfcf1bSScott Wood #ifdef CONFIG_SPL_BUILD 88f8cfcf1bSScott Wood #define U_BOOT_ENV_CALLBACK(name, callback) \ 893ea664c7SJeroen Hofstee static inline __maybe_unused void _u_boot_env_noop_##name(void) \ 90f8cfcf1bSScott Wood { \ 91f8cfcf1bSScott Wood (void)callback; \ 92f8cfcf1bSScott Wood } 93f8cfcf1bSScott Wood #else 94170ab110SJoe Hershberger #define U_BOOT_ENV_CALLBACK(name, callback) \ 95ef123c52SAlbert ARIBAUD ll_entry_declare(struct env_clbk_tbl, name, env_clbk) = \ 96170ab110SJoe Hershberger {#name, callback} 97f8cfcf1bSScott Wood #endif 98170ab110SJoe Hershberger 99170ab110SJoe Hershberger #endif /* __ENV_CALLBACK_H__ */ 100