include/command.h

   1 /*
   2  * (C) Copyright 2000-2009
   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 #include <config.h>
  31
  32 #ifndef NULL
  33 #define NULL    0
  34 #endif
  35
  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
  39 #endif
  40
  41 #ifndef __ASSEMBLY__
  42 /*
  43  * Monitor Command Table
  44  */
  45
  46 struct cmd_tbl_s {
  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)  */
  55 #endif
  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[]);
  59 #endif
  60 };
  61
  62 typedef struct cmd_tbl_s        cmd_tbl_t;
  63
  64 extern cmd_tbl_t  __u_boot_cmd_start;
  65 extern cmd_tbl_t  __u_boot_cmd_end;
  66
  67
  68 /* common/command.c */
  69 int _do_help (cmd_tbl_t *cmd_start, int cmd_items, cmd_tbl_t * cmdtp, int
  70               flag, int argc, char * const argv[]);
  71 cmd_tbl_t *find_cmd(const char *cmd);
  72 cmd_tbl_t *find_cmd_tbl (const char *cmd, cmd_tbl_t *table, int table_len);
  73
  74 extern int cmd_usage(cmd_tbl_t *cmdtp);
  75
  76 #ifdef CONFIG_AUTO_COMPLETE
  77 extern void install_auto_complete(void);
  78 extern int cmd_auto_complete(const char *const prompt, char *buf, int *np, int *colp);
  79 #endif
  80
  81 /*
  82  * Monitor Command
  83  *
  84  * All commands use a common argument format:
  85  *
  86  * void function (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
  87  */
  88
  89 typedef void    command_t (cmd_tbl_t *, int, int, char *[]);
  90
  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)
  96 #define CMD_DATA_SIZE
  97 extern int cmd_get_data_size(char* arg, int default_size);
  98 #endif
  99
 100 #endif  /* __ASSEMBLY__ */
 101
 102 /*
 103  * Command Flags:
 104  */
 105 #define CMD_FLAG_REPEAT         0x0001  /* repeat last command          */
 106 #define CMD_FLAG_BOOTD          0x0002  /* command is from bootd        */
 107
 108 #define Struct_Section  __attribute__ ((unused,section (".u_boot_cmd")))
 109
 110 #ifdef  CONFIG_SYS_LONGHELP
 111
 112 #define U_BOOT_CMD(name,maxargs,rep,cmd,usage,help) \
 113 cmd_tbl_t __u_boot_cmd_##name Struct_Section = {#name, maxargs, rep, cmd, usage, help}
 114
 115 #define U_BOOT_CMD_MKENT(name,maxargs,rep,cmd,usage,help) \
 116 {#name, maxargs, rep, cmd, usage, help}
 117
 118 #else   /* no long help info */
 119
 120 #define U_BOOT_CMD(name,maxargs,rep,cmd,usage,help) \
 121 cmd_tbl_t __u_boot_cmd_##name Struct_Section = {#name, maxargs, rep, cmd, usage}
 122
 123 #define U_BOOT_CMD_MKENT(name,maxargs,rep,cmd,usage,help) \
 124 {#name, maxargs, rep, cmd, usage}
 125
 126 #endif  /* CONFIG_SYS_LONGHELP */
 127
 128 #if !defined(CONFIG_RELOC_FIXUP_WORKS)
 129 void fixup_cmdtable(cmd_tbl_t *cmdtp, int size);
 130 #endif
 131 #endif  /* __COMMAND_H */