2 * (C) Copyright 2000-2009
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * See file CREDITS for list of people who contributed to this
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.
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.
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,
25 * Definitions for Command Processor
36 /* Default to a width of 8 characters for help message command width */
37 #ifndef CONFIG_SYS_HELP_CMD_WIDTH
38 #define CONFIG_SYS_HELP_CMD_WIDTH 8
43 * Monitor Command Table
47 char *name; /* Command Name */
48 int maxargs; /* maximum number of arguments */
49 int repeatable; /* autorepeat allowed? */
50 /* Implementation function */
51 int (*cmd)(struct cmd_tbl_s *, int, int, char * const []);
52 char *usage; /* Usage message (short) */
53 #ifdef CONFIG_SYS_LONGHELP
54 char *help; /* Help message (long) */
56 #ifdef CONFIG_AUTO_COMPLETE
57 /* do auto completion on the arguments */
58 int (*complete)(int argc, char * const argv[], char last_char, int maxv, char *cmdv[]);
62 typedef struct cmd_tbl_s cmd_tbl_t;
64 extern cmd_tbl_t __u_boot_cmd_start;
65 extern cmd_tbl_t __u_boot_cmd_end;
67 #if defined(CONFIG_CMD_RUN)
68 extern int do_run(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
71 /* common/command.c */
72 int _do_help (cmd_tbl_t *cmd_start, int cmd_items, cmd_tbl_t * cmdtp, int
73 flag, int argc, char * const argv[]);
74 cmd_tbl_t *find_cmd(const char *cmd);
75 cmd_tbl_t *find_cmd_tbl (const char *cmd, cmd_tbl_t *table, int table_len);
77 extern int cmd_usage(const cmd_tbl_t *cmdtp);
79 #ifdef CONFIG_AUTO_COMPLETE
80 extern int var_complete(int argc, char * const argv[], char last_char, int maxv, char *cmdv[]);
81 extern int cmd_auto_complete(const char *const prompt, char *buf, int *np, int *colp);
87 * All commands use a common argument format:
89 * void function (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
92 #if defined(CONFIG_CMD_MEMORY) \
93 || defined(CONFIG_CMD_I2C) \
94 || defined(CONFIG_CMD_ITEST) \
95 || defined(CONFIG_CMD_PCI) \
96 || defined(CONFIG_CMD_PORTIO)
98 extern int cmd_get_data_size(char* arg, int default_size);
101 #ifdef CONFIG_CMD_BOOTD
102 extern int do_bootd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
104 #ifdef CONFIG_CMD_BOOTM
105 extern int do_bootm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
106 extern int bootm_maybe_autostart(cmd_tbl_t *cmdtp, const char *cmd);
108 static inline int bootm_maybe_autostart(cmd_tbl_t *cmdtp, const char *cmd)
114 extern int common_diskboot(cmd_tbl_t *cmdtp, const char *intf, int argc,
117 extern int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
120 * Error codes that commands return to cmd_process(). We use the standard 0
121 * and 1 for success and failure, but add one more case - failure with a
122 * request to call cmd_usage(). But the cmd_process() function handles
123 * CMD_RET_USAGE itself and after calling cmd_usage() it will return 1.
124 * This is just a convenience for commands to avoid them having to call
125 * cmd_usage() all over the place.
128 CMD_RET_SUCCESS, /* 0 = Success */
129 CMD_RET_FAILURE, /* 1 = Failure */
130 CMD_RET_USAGE = -1, /* Failure, please report 'usage' error */
134 * Process a command with arguments. We look up the command and execute it
135 * if valid. Otherwise we print a usage message.
137 * @param flag Some flags normally 0 (see CMD_FLAG_.. above)
138 * @param argc Number of arguments (arg 0 must be the command text)
139 * @param argv Arguments
140 * @param repeatable This function sets this to 0 if the command is not
141 * repeatable. If the command is repeatable, the value
143 * @return 0 if the command succeeded, 1 if it failed
145 int cmd_process(int flag, int argc, char * const argv[],
148 #endif /* __ASSEMBLY__ */
153 #define CMD_FLAG_REPEAT 0x0001 /* repeat last command */
154 #define CMD_FLAG_BOOTD 0x0002 /* command is from bootd */
156 #define Struct_Section __attribute__((unused, section(".u_boot_cmd"), \
159 #ifdef CONFIG_AUTO_COMPLETE
160 # define _CMD_COMPLETE(x) x,
162 # define _CMD_COMPLETE(x)
164 #ifdef CONFIG_SYS_LONGHELP
165 # define _CMD_HELP(x) x,
167 # define _CMD_HELP(x)
170 #define U_BOOT_CMD_MKENT_COMPLETE(name,maxargs,rep,cmd,usage,help,comp) \
171 {#name, maxargs, rep, cmd, usage, _CMD_HELP(help) _CMD_COMPLETE(comp)}
173 #define U_BOOT_CMD_MKENT(name,maxargs,rep,cmd,usage,help) \
174 U_BOOT_CMD_MKENT_COMPLETE(name,maxargs,rep,cmd,usage,help,NULL)
176 #define U_BOOT_CMD_COMPLETE(name,maxargs,rep,cmd,usage,help,comp) \
177 cmd_tbl_t __u_boot_cmd_##name Struct_Section = \
178 U_BOOT_CMD_MKENT_COMPLETE(name,maxargs,rep,cmd,usage,help,comp)
180 #define U_BOOT_CMD(name,maxargs,rep,cmd,usage,help) \
181 U_BOOT_CMD_COMPLETE(name,maxargs,rep,cmd,usage,help,NULL)
183 #if defined(CONFIG_NEEDS_MANUAL_RELOC)
184 void fixup_cmdtable(cmd_tbl_t *cmdtp, int size);
187 #endif /* __COMMAND_H */