1170ab110SJoe Hershberger /* 2170ab110SJoe Hershberger * (C) Copyright 2012 3170ab110SJoe Hershberger * Joe Hershberger, National Instruments, joe.hershberger@ni.com 4170ab110SJoe Hershberger * 5170ab110SJoe Hershberger * See file CREDITS for list of people who contributed to this 6170ab110SJoe Hershberger * project. 7170ab110SJoe Hershberger * 8170ab110SJoe Hershberger * This program is free software; you can redistribute it and/or 9170ab110SJoe Hershberger * modify it under the terms of the GNU General Public License as 10170ab110SJoe Hershberger * published by the Free Software Foundation; either version 2 of 11170ab110SJoe Hershberger * the License, or (at your option) any later version. 12170ab110SJoe Hershberger * 13170ab110SJoe Hershberger * This program is distributed in the hope that it will be useful, 14170ab110SJoe Hershberger * but WITHOUT ANY WARRANTY; without even the implied warranty of 15170ab110SJoe Hershberger * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16170ab110SJoe Hershberger * GNU General Public License for more details. 17170ab110SJoe Hershberger * 18170ab110SJoe Hershberger * You should have received a copy of the GNU General Public License 19170ab110SJoe Hershberger * along with this program; if not, write to the Free Software 20170ab110SJoe Hershberger * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 21170ab110SJoe Hershberger * MA 02111-1307 USA 22170ab110SJoe Hershberger */ 23170ab110SJoe Hershberger 24170ab110SJoe Hershberger #ifndef __ENV_CALLBACK_H__ 25170ab110SJoe Hershberger #define __ENV_CALLBACK_H__ 26170ab110SJoe Hershberger 27*2598090bSJoe Hershberger #include <env_flags.h> 28170ab110SJoe Hershberger #include <linker_lists.h> 29170ab110SJoe Hershberger #include <search.h> 30170ab110SJoe Hershberger 31170ab110SJoe Hershberger #define ENV_CALLBACK_VAR ".callbacks" 32170ab110SJoe Hershberger 33170ab110SJoe Hershberger /* Board configs can define additional static callback bindings */ 34170ab110SJoe Hershberger #ifndef CONFIG_ENV_CALLBACK_LIST_STATIC 35170ab110SJoe Hershberger #define CONFIG_ENV_CALLBACK_LIST_STATIC 36170ab110SJoe Hershberger #endif 37170ab110SJoe Hershberger 38e080d545SJoe Hershberger #ifdef CONFIG_SILENT_CONSOLE 39e080d545SJoe Hershberger #define SILENT_CALLBACK "silent:silent," 40e080d545SJoe Hershberger #else 41e080d545SJoe Hershberger #define SILENT_CALLBACK 42e080d545SJoe Hershberger #endif 43e080d545SJoe Hershberger 44170ab110SJoe Hershberger /* 45170ab110SJoe Hershberger * This list of callback bindings is static, but may be overridden by defining 46170ab110SJoe Hershberger * a new association in the ".callbacks" environment variable. 47170ab110SJoe Hershberger */ 48170ab110SJoe Hershberger #define ENV_CALLBACK_LIST_STATIC ENV_CALLBACK_VAR ":callbacks," \ 49*2598090bSJoe Hershberger ENV_FLAGS_VAR ":flags," \ 5032057717SJoe Hershberger "baudrate:baudrate," \ 51a9f51c9bSJoe Hershberger "bootfile:bootfile," \ 521cf0a8b2SJoe Hershberger "loadaddr:loadaddr," \ 53e080d545SJoe Hershberger SILENT_CALLBACK \ 54849d5d9cSJoe Hershberger "stdin:console,stdout:console,stderr:console," \ 55170ab110SJoe Hershberger CONFIG_ENV_CALLBACK_LIST_STATIC 56170ab110SJoe Hershberger 57170ab110SJoe Hershberger struct env_clbk_tbl { 58170ab110SJoe Hershberger const char *name; /* Callback name */ 59170ab110SJoe Hershberger int (*callback)(const char *name, const char *value, enum env_op op, 60170ab110SJoe Hershberger int flags); 61170ab110SJoe Hershberger }; 62170ab110SJoe Hershberger 63170ab110SJoe Hershberger struct env_clbk_tbl *find_env_callback(const char *); 64170ab110SJoe Hershberger void env_callback_init(ENTRY *var_entry); 65170ab110SJoe Hershberger 66170ab110SJoe Hershberger /* 67170ab110SJoe Hershberger * Define a callback that can be associated with variables. 68170ab110SJoe Hershberger * when associated through the ".callbacks" environment variable, the callback 69170ab110SJoe Hershberger * will be executed any time the variable is inserted, overwritten, or deleted. 70170ab110SJoe Hershberger */ 71170ab110SJoe Hershberger #define U_BOOT_ENV_CALLBACK(name, callback) \ 72170ab110SJoe Hershberger ll_entry_declare(struct env_clbk_tbl, name, env_clbk, env_clbk) = \ 73170ab110SJoe Hershberger {#name, callback} 74170ab110SJoe Hershberger 75170ab110SJoe Hershberger #endif /* __ENV_CALLBACK_H__ */ 76