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
31 #include <linker_lists.h>
37 /* Default to a width of 8 characters for help message command width */
38 #ifndef CONFIG_SYS_HELP_CMD_WIDTH
39 #define CONFIG_SYS_HELP_CMD_WIDTH 8
44 * Monitor Command Table
48 char *name; /* Command Name */
49 int maxargs; /* maximum number of arguments */
50 int repeatable; /* autorepeat allowed? */
51 /* Implementation function */
52 int (*cmd)(struct cmd_tbl_s *, int, int, char * const []);
53 char *usage; /* Usage message (short) */
54 #ifdef CONFIG_SYS_LONGHELP
55 char *help; /* Help message (long) */
57 #ifdef CONFIG_AUTO_COMPLETE
58 /* do auto completion on the arguments */
59 int (*complete)(int argc, char * const argv[], char last_char, int maxv, char *cmdv[]);
63 typedef struct cmd_tbl_s cmd_tbl_t;
66 #if defined(CONFIG_CMD_RUN)
67 extern int do_run(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
70 /* common/command.c */
71 int _do_help (cmd_tbl_t *cmd_start, int cmd_items, cmd_tbl_t * cmdtp, int
72 flag, int argc, char * const argv[]);
73 cmd_tbl_t *find_cmd(const char *cmd);
74 cmd_tbl_t *find_cmd_tbl (const char *cmd, cmd_tbl_t *table, int table_len);
76 extern int cmd_usage(const cmd_tbl_t *cmdtp);
78 #ifdef CONFIG_AUTO_COMPLETE
79 extern int var_complete(int argc, char * const argv[], char last_char, int maxv, char *cmdv[]);
80 extern int cmd_auto_complete(const char *const prompt, char *buf, int *np, int *colp);
86 * All commands use a common argument format:
88 * void function (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
91 #if defined(CONFIG_CMD_MEMORY) \
92 || defined(CONFIG_CMD_I2C) \
93 || defined(CONFIG_CMD_ITEST) \
94 || defined(CONFIG_CMD_PCI) \
95 || defined(CONFIG_CMD_PORTIO)
97 extern int cmd_get_data_size(char* arg, int default_size);
100 #ifdef CONFIG_CMD_BOOTD
101 extern int do_bootd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
103 #ifdef CONFIG_CMD_BOOTM
104 extern int do_bootm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
105 extern int bootm_maybe_autostart(cmd_tbl_t *cmdtp, const char *cmd);
107 static inline int bootm_maybe_autostart(cmd_tbl_t *cmdtp, const char *cmd)
113 extern int common_diskboot(cmd_tbl_t *cmdtp, const char *intf, int argc,
116 extern int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
119 * Error codes that commands return to cmd_process(). We use the standard 0
120 * and 1 for success and failure, but add one more case - failure with a
121 * request to call cmd_usage(). But the cmd_process() function handles
122 * CMD_RET_USAGE itself and after calling cmd_usage() it will return 1.
123 * This is just a convenience for commands to avoid them having to call
124 * cmd_usage() all over the place.
127 CMD_RET_SUCCESS, /* 0 = Success */
128 CMD_RET_FAILURE, /* 1 = Failure */
129 CMD_RET_USAGE = -1, /* Failure, please report 'usage' error */
133 * Process a command with arguments. We look up the command and execute it
134 * if valid. Otherwise we print a usage message.
136 * @param flag Some flags normally 0 (see CMD_FLAG_.. above)
137 * @param argc Number of arguments (arg 0 must be the command text)
138 * @param argv Arguments
139 * @param repeatable This function sets this to 0 if the command is not
140 * repeatable. If the command is repeatable, the value
142 * @param ticks If ticks is not null, this function set it to the
143 * number of ticks the command took to complete.
144 * @return 0 if the command succeeded, 1 if it failed
146 int cmd_process(int flag, int argc, char * const argv[],
147 int *repeatable, unsigned long *ticks);
149 #endif /* __ASSEMBLY__ */
154 #define CMD_FLAG_REPEAT 0x0001 /* repeat last command */
155 #define CMD_FLAG_BOOTD 0x0002 /* command is from bootd */
157 #ifdef CONFIG_AUTO_COMPLETE
158 # define _CMD_COMPLETE(x) x,
160 # define _CMD_COMPLETE(x)
162 #ifdef CONFIG_SYS_LONGHELP
163 # define _CMD_HELP(x) x,
165 # define _CMD_HELP(x)
168 #define U_BOOT_CMD_MKENT_COMPLETE(_name, _maxargs, _rep, _cmd, \
169 _usage, _help, _comp) \
170 { #_name, _maxargs, _rep, _cmd, _usage, \
171 _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, \
177 #define U_BOOT_CMD_COMPLETE(_name, _maxargs, _rep, _cmd, _usage, _help, _comp) \
178 ll_entry_declare(cmd_tbl_t, _name, cmd, cmd) = \
179 U_BOOT_CMD_MKENT_COMPLETE(_name, _maxargs, _rep, _cmd, \
180 _usage, _help, _comp);
182 #define U_BOOT_CMD(_name, _maxargs, _rep, _cmd, _usage, _help) \
183 U_BOOT_CMD_COMPLETE(_name, _maxargs, _rep, _cmd, _usage, _help, NULL)
185 #if defined(CONFIG_NEEDS_MANUAL_RELOC)
186 void fixup_cmdtable(cmd_tbl_t *cmdtp, int size);
189 #endif /* __COMMAND_H */