]>
git.ipfire.org Git - people/ms/u-boot.git/blob - include/command.h
2 * (C) Copyright 2000-2009
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * SPDX-License-Identifier: GPL-2.0+
9 * Definitions for Command Processor
14 #include <linker_lists.h>
20 /* Default to a width of 8 characters for help message command width */
21 #ifndef CONFIG_SYS_HELP_CMD_WIDTH
22 #define CONFIG_SYS_HELP_CMD_WIDTH 8
27 * Monitor Command Table
31 char *name
; /* Command Name */
32 int maxargs
; /* maximum number of arguments */
33 int repeatable
; /* autorepeat allowed? */
34 /* Implementation function */
35 int (*cmd
)(struct cmd_tbl_s
*, int, int, char * const []);
36 char *usage
; /* Usage message (short) */
37 #ifdef CONFIG_SYS_LONGHELP
38 char *help
; /* Help message (long) */
40 #ifdef CONFIG_AUTO_COMPLETE
41 /* do auto completion on the arguments */
42 int (*complete
)(int argc
, char * const argv
[], char last_char
, int maxv
, char *cmdv
[]);
46 typedef struct cmd_tbl_s cmd_tbl_t
;
49 #if defined(CONFIG_CMD_RUN)
50 extern int do_run(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[]);
53 /* common/command.c */
54 int _do_help (cmd_tbl_t
*cmd_start
, int cmd_items
, cmd_tbl_t
* cmdtp
, int
55 flag
, int argc
, char * const argv
[]);
56 cmd_tbl_t
*find_cmd(const char *cmd
);
57 cmd_tbl_t
*find_cmd_tbl (const char *cmd
, cmd_tbl_t
*table
, int table_len
);
59 extern int cmd_usage(const cmd_tbl_t
*cmdtp
);
61 #ifdef CONFIG_AUTO_COMPLETE
62 extern int var_complete(int argc
, char * const argv
[], char last_char
, int maxv
, char *cmdv
[]);
63 extern int cmd_auto_complete(const char *const prompt
, char *buf
, int *np
, int *colp
);
67 * cmd_process_error() - report and process a possible error
69 * @cmdtp: Command which caused the error
70 * @err: Error code (0 if none, -ve for error, like -EIO)
71 * @return 0 if there is not error, 1 (CMD_RET_FAILURE) if an error is found
73 int cmd_process_error(cmd_tbl_t
*cmdtp
, int err
);
78 * All commands use a common argument format:
80 * void function (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
83 #if defined(CONFIG_CMD_MEMORY) \
84 || defined(CONFIG_CMD_I2C) \
85 || defined(CONFIG_CMD_ITEST) \
86 || defined(CONFIG_CMD_PCI) \
87 || defined(CONFIG_CMD_PORTIO)
89 extern int cmd_get_data_size(char* arg
, int default_size
);
92 #ifdef CONFIG_CMD_BOOTD
93 extern int do_bootd(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[]);
95 #ifdef CONFIG_CMD_BOOTM
96 extern int do_bootm(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[]);
97 extern int bootm_maybe_autostart(cmd_tbl_t
*cmdtp
, const char *cmd
);
99 static inline int bootm_maybe_autostart(cmd_tbl_t
*cmdtp
, const char *cmd
)
105 extern int do_bootz(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[]);
107 extern int do_booti(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[]);
109 extern int common_diskboot(cmd_tbl_t
*cmdtp
, const char *intf
, int argc
,
112 extern int do_reset(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[]);
115 * Error codes that commands return to cmd_process(). We use the standard 0
116 * and 1 for success and failure, but add one more case - failure with a
117 * request to call cmd_usage(). But the cmd_process() function handles
118 * CMD_RET_USAGE itself and after calling cmd_usage() it will return 1.
119 * This is just a convenience for commands to avoid them having to call
120 * cmd_usage() all over the place.
123 CMD_RET_SUCCESS
, /* 0 = Success */
124 CMD_RET_FAILURE
, /* 1 = Failure */
125 CMD_RET_USAGE
= -1, /* Failure, please report 'usage' error */
129 * Process a command with arguments. We look up the command and execute it
130 * if valid. Otherwise we print a usage message.
132 * @param flag Some flags normally 0 (see CMD_FLAG_.. above)
133 * @param argc Number of arguments (arg 0 must be the command text)
134 * @param argv Arguments
135 * @param repeatable This function sets this to 0 if the command is not
136 * repeatable. If the command is repeatable, the value
138 * @param ticks If ticks is not null, this function set it to the
139 * number of ticks the command took to complete.
140 * @return 0 if the command succeeded, 1 if it failed
142 int cmd_process(int flag
, int argc
, char * const argv
[],
143 int *repeatable
, unsigned long *ticks
);
145 #endif /* __ASSEMBLY__ */
150 #define CMD_FLAG_REPEAT 0x0001 /* repeat last command */
151 #define CMD_FLAG_BOOTD 0x0002 /* command is from bootd */
152 #define CMD_FLAG_ENV 0x0004 /* command is from the environment */
154 #ifdef CONFIG_AUTO_COMPLETE
155 # define _CMD_COMPLETE(x) x,
157 # define _CMD_COMPLETE(x)
159 #ifdef CONFIG_SYS_LONGHELP
160 # define _CMD_HELP(x) x,
162 # define _CMD_HELP(x)
165 #define U_BOOT_CMD_MKENT_COMPLETE(_name, _maxargs, _rep, _cmd, \
166 _usage, _help, _comp) \
167 { #_name, _maxargs, _rep, _cmd, _usage, \
168 _CMD_HELP(_help) _CMD_COMPLETE(_comp) }
170 #define U_BOOT_CMD_MKENT(_name, _maxargs, _rep, _cmd, _usage, _help) \
171 U_BOOT_CMD_MKENT_COMPLETE(_name, _maxargs, _rep, _cmd, \
174 #define U_BOOT_CMD_COMPLETE(_name, _maxargs, _rep, _cmd, _usage, _help, _comp) \
175 ll_entry_declare(cmd_tbl_t, _name, cmd) = \
176 U_BOOT_CMD_MKENT_COMPLETE(_name, _maxargs, _rep, _cmd, \
177 _usage, _help, _comp);
179 #define U_BOOT_CMD(_name, _maxargs, _rep, _cmd, _usage, _help) \
180 U_BOOT_CMD_COMPLETE(_name, _maxargs, _rep, _cmd, _usage, _help, NULL)
182 #if defined(CONFIG_NEEDS_MANUAL_RELOC)
183 void fixup_cmdtable(cmd_tbl_t
*cmdtp
, int size
);
186 #endif /* __COMMAND_H */