src/helper/command.h

   1 /***************************************************************************
   2  *   Copyright (C) 2005 by Dominic Rath                                    *
   3  *   Dominic.Rath@gmx.de                                                   *
   4  *                                                                         *
   5  *   Copyright (C) 2007,2008 Øyvind Harboe                                 *
   6  *   oyvind.harboe@zylin.com                                               *
   7  *                                                                         *
   8  *   This program is free software; you can redistribute it and/or modify  *
   9  *   it under the terms of the GNU General Public License as published by  *
  10  *   the Free Software Foundation; either version 2 of the License, or     *
  11  *   (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                         *
  20  *   Free Software Foundation, Inc.,                                       *
  21  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  22  ***************************************************************************/
  23 #ifndef COMMAND_H
  24 #define COMMAND_H
  25
  26 #include "types.h"
  27
  28 /* Integrate the JIM TCL interpretor into the command processing. */
  29 #if BUILD_ECOSBOARD
  30 #include <stdio.h>
  31 #include <stdarg.h>
  32 /* Jim is provied by eCos */
  33 #include <cyg/jimtcl/jim.h>
  34 #else
  35 #include "jim.h"
  36 #endif
  37
  38 /* To achieve C99 printf compatibility in MinGW, gnu_printf should be
  39  * used for __attribute__((format( ... ))), with GCC v4.4 or later
  40  */
  41 #if (defined(IS_MINGW) && (((__GNUC__ << 16) + __GNUC_MINOR__) >= 0x00040004))
  42 #define PRINTF_ATTRIBUTE_FORMAT gnu_printf
  43 #else
  44 #define PRINTF_ATTRIBUTE_FORMAT printf
  45 #endif
  46
  47 enum command_mode
  48 {
  49         COMMAND_EXEC,
  50         COMMAND_CONFIG,
  51         COMMAND_ANY,
  52 };
  53
  54 typedef struct command_context_s
  55 {
  56         enum command_mode mode;
  57         struct command_s *commands;
  58         int current_target;
  59         /* Execute a command.
  60          *
  61          * If the command fails, it *MUST* return a value != ERROR_OK
  62          * (many commands break this rule, patches welcome!)
  63          *
  64          * This is *especially* important for commands such as writing
  65          * to flash or verifying memory. The reason is that those commands
  66          * can be used by programs to determine if the operation succeded
  67          * or not. If the operation failed, then a program can try
  68          * an alternative approach.
  69          *
  70          * Returning ERROR_COMMAND_SYNTAX_ERROR will have the effect of
  71          * printing out the syntax of the command.
  72          */
  73         int (*output_handler)(struct command_context_s *context, const char* line);
  74         void *output_handler_priv;
  75 } command_context_t;
  76
  77 typedef struct command_s
  78 {
  79         char *name;
  80         struct command_s *parent;
  81         struct command_s *children;
  82         int (*handler)(struct command_context_s *context, char* name, char** args, int argc);
  83         enum command_mode mode;
  84         struct command_s *next;
  85 } command_t;
  86
  87 extern command_t* register_command(command_context_t *context, command_t *parent, char *name, int (*handler)(struct command_context_s *context, char* name, char** args, int argc), enum command_mode mode, char *help);
  88 extern int unregister_command(command_context_t *context, char *name);
  89 extern int unregister_all_commands(command_context_t *context);
  90 extern void command_set_output_handler(command_context_t* context, int (*output_handler)(struct command_context_s *context, const char* line), void *priv);
  91 extern command_context_t* copy_command_context(command_context_t* context);
  92 extern int command_context_mode(command_context_t *context, enum command_mode mode);
  93 extern command_context_t* command_init(void);
  94 extern int command_done(command_context_t *context);
  95
  96 extern void command_print(command_context_t *context, const char *format, ...)
  97                 __attribute__ ((format (PRINTF_ATTRIBUTE_FORMAT, 2, 3)));
  98 extern void command_print_sameline(command_context_t *context, const char *format, ...)
  99                 __attribute__ ((format (PRINTF_ATTRIBUTE_FORMAT, 2, 3)));
 100 extern int command_run_line(command_context_t *context, char *line);
 101 extern int command_run_linef(command_context_t *context, const char *format, ...)
 102                 __attribute__ ((format (PRINTF_ATTRIBUTE_FORMAT, 2, 3)));
 103 extern void command_output_text(command_context_t *context, const char *data);
 104
 105 extern void process_jim_events(void);
 106
 107 #define         ERROR_COMMAND_CLOSE_CONNECTION          (-600)
 108 #define         ERROR_COMMAND_SYNTAX_ERROR                      (-601)
 109 #define         ERROR_COMMAND_NOTFOUND                          (-602)
 110 #define         ERROR_COMMAND_ARGUMENT_INVALID          (-603)
 111 #define         ERROR_COMMAND_ARGUMENT_OVERFLOW         (-604)
 112 #define         ERROR_COMMAND_ARGUMENT_UNDERFLOW        (-605)
 113
 114 extern int fast_and_dangerous;
 115
 116 extern Jim_Interp *interp;
 117
 118 void register_jim(command_context_t *context, const char *name, int (*cmd)(Jim_Interp *interp, int argc, Jim_Obj *const *argv), const char *help);
 119
 120 long jim_global_long(const char *variable);
 121
 122 int parse_ulong(const char *str, unsigned long *ul);
 123 int parse_ullong(const char *str, unsigned long long *ul);
 124
 125 int parse_long(const char *str, long *ul);
 126 int parse_llong(const char *str, long long *ul);
 127
 128 #define DECLARE_PARSE_WRAPPER(name, type) \
 129         int parse##name(const char *str, type *ul)
 130
 131 DECLARE_PARSE_WRAPPER(_uint, unsigned);
 132 DECLARE_PARSE_WRAPPER(_u32, uint32_t);
 133 DECLARE_PARSE_WRAPPER(_u16, uint16_t);
 134 DECLARE_PARSE_WRAPPER(_u8, uint8_t);
 135
 136 DECLARE_PARSE_WRAPPER(_int, int);
 137 DECLARE_PARSE_WRAPPER(_s32, int32_t);
 138 DECLARE_PARSE_WRAPPER(_s16, int16_t);
 139 DECLARE_PARSE_WRAPPER(_s8, int8_t);
 140
 141 void script_debug(Jim_Interp *interp, const char *cmd, int argc, Jim_Obj *const *argv);
 142
 143 #endif /* COMMAND_H */