1 /* 2 * (C) Copyright 2000 3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 4 * 5 * See file CREDITS for list of people who contributed to this 6 * project. 7 * 8 * This program is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU General Public License as 10 * published by the Free Software Foundation; either version 2 of 11 * the License, or (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 21 * MA 02111-1307 USA 22 */ 23 24 /* 25 * Definitions for Command Processor 26 */ 27 #ifndef __COMMAND_H 28 #define __COMMAND_H 29 30 #ifndef NULL 31 #define NULL 0 32 #endif 33 34 #ifndef __ASSEMBLY__ 35 /* 36 * Monitor Command Table 37 */ 38 39 struct cmd_tbl_s { 40 char *name; /* Command Name */ 41 int maxargs; /* maximum number of arguments */ 42 int repeatable; /* autorepeat allowed? */ 43 /* Implementation function */ 44 int (*cmd)(struct cmd_tbl_s *, int, int, char *[]); 45 char *usage; /* Usage message (short) */ 46 #ifdef CFG_LONGHELP 47 char *help; /* Help message (long) */ 48 #endif 49 }; 50 51 typedef struct cmd_tbl_s cmd_tbl_t; 52 53 extern cmd_tbl_t __u_boot_cmd_start; 54 extern cmd_tbl_t __u_boot_cmd_end; 55 56 57 /* common/command.c */ 58 cmd_tbl_t *find_cmd(const char *cmd); 59 60 /* 61 * Monitor Command 62 * 63 * All commands use a common argument format: 64 * 65 * void function (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]); 66 */ 67 68 typedef void command_t (cmd_tbl_t *, int, int, char *[]); 69 70 #endif /* __ASSEMBLY__ */ 71 72 /* 73 * Command Flags: 74 */ 75 #define CMD_FLAG_REPEAT 0x0001 /* repeat last command */ 76 #define CMD_FLAG_BOOTD 0x0002 /* command is from bootd */ 77 78 /* 79 * Configurable monitor commands definitions have been moved 80 * to include/cmd_confdefs.h 81 */ 82 83 84 #define Struct_Section __attribute__ ((unused,section (".u_boot_cmd"))) 85 86 #ifdef CFG_LONGHELP 87 88 #define U_BOOT_CMD(name,maxargs,rep,cmd,usage,help) \ 89 cmd_tbl_t __u_boot_cmd_##name Struct_Section = {#name, maxargs, rep, cmd, usage, help} 90 91 #else /* no long help info */ 92 93 #define U_BOOT_CMD(name,maxargs,rep,cmd,usage,help) \ 94 cmd_tbl_t __u_boot_cmd_##name Struct_Section = {#name, maxargs, rep, cmd, usage} 95 96 #endif /* CFG_LONGHELP */ 97 98 #endif /* __COMMAND_H */ 99