xref: /openbmc/u-boot/include/command.h (revision 1ac559d4)
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 #ifdef CONFIG_AUTO_COMPLETE
50 	/* do auto completion on the arguments */
51 	int		(*complete)(int argc, char *argv[], char last_char, int maxv, char *cmdv[]);
52 #endif
53 };
54 
55 typedef struct cmd_tbl_s	cmd_tbl_t;
56 
57 extern cmd_tbl_t  __u_boot_cmd_start;
58 extern cmd_tbl_t  __u_boot_cmd_end;
59 
60 
61 /* common/command.c */
62 cmd_tbl_t *find_cmd(const char *cmd);
63 
64 #ifdef CONFIG_AUTO_COMPLETE
65 extern void install_auto_complete(void);
66 extern int cmd_auto_complete(const char *const prompt, char *buf, int *np, int *colp);
67 #endif
68 
69 /*
70  * Monitor Command
71  *
72  * All commands use a common argument format:
73  *
74  * void function (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
75  */
76 
77 typedef	void 	command_t (cmd_tbl_t *, int, int, char *[]);
78 
79 #endif	/* __ASSEMBLY__ */
80 
81 /*
82  * Command Flags:
83  */
84 #define CMD_FLAG_REPEAT		0x0001	/* repeat last command		*/
85 #define CMD_FLAG_BOOTD		0x0002	/* command is from bootd	*/
86 
87 #define Struct_Section  __attribute__ ((unused,section (".u_boot_cmd")))
88 
89 #ifdef  CFG_LONGHELP
90 
91 #define U_BOOT_CMD(name,maxargs,rep,cmd,usage,help) \
92 cmd_tbl_t __u_boot_cmd_##name Struct_Section = {#name, maxargs, rep, cmd, usage, help}
93 
94 #else	/* no long help info */
95 
96 #define U_BOOT_CMD(name,maxargs,rep,cmd,usage,help) \
97 cmd_tbl_t __u_boot_cmd_##name Struct_Section = {#name, maxargs, rep, cmd, usage}
98 
99 #endif	/* CFG_LONGHELP */
100 
101 #endif	/* __COMMAND_H */
102