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  1. /*
  2.  * Copyright (C) 2005 Jakub Jermar
  3.  * All rights reserved.
  4.  *
  5.  * Redistribution and use in source and binary forms, with or without
  6.  * modification, are permitted provided that the following conditions
  7.  * are met:
  8.  *
  9.  * - Redistributions of source code must retain the above copyright
  10.  *   notice, this list of conditions and the following disclaimer.
  11.  * - Redistributions in binary form must reproduce the above copyright
  12.  *   notice, this list of conditions and the following disclaimer in the
  13.  *   documentation and/or other materials provided with the distribution.
  14.  * - The name of the author may not be used to endorse or promote products
  15.  *   derived from this software without specific prior written permission.
  16.  *
  17.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27.  */
  28.  
  29. #ifndef __KCONSOLE_H__
  30. #define __KCONSOLE_H__
  31.  
  32. #include <typedefs.h>
  33. #include <adt/list.h>
  34. #include <synch/spinlock.h>
  35.  
  36. #define MAX_CMDLINE     256
  37. #define KCONSOLE_HISTORY 10
  38.  
  39. enum cmd_arg_type {
  40.     ARG_TYPE_INVALID = 0,
  41.     ARG_TYPE_INT,
  42.     ARG_TYPE_STRING,
  43.     ARG_TYPE_VAR      /**< Variable type - either symbol or string */
  44. };
  45.  
  46. /** Structure representing one argument of kconsole command line. */
  47. struct cmd_arg {
  48.     cmd_arg_type_t type;        /**< Type descriptor. */
  49.     void *buffer;           /**< Buffer where to store data. */
  50.     size_t len;         /**< Size of the buffer. */
  51.     __native intval;                /**< Integer value */
  52.     cmd_arg_type_t vartype;         /**< Resulting type of variable arg */
  53. };
  54.  
  55. /** Structure representing one kconsole command. */
  56. struct cmd_info {
  57.     link_t link;            /**< Command list link. */
  58.     SPINLOCK_DECLARE(lock);     /**< This lock protects everything below. */
  59.     const char *name;       /**< Command name. */
  60.     const char *description;    /**< Textual description. */
  61.     int (* func)(cmd_arg_t *);  /**< Function implementing the command. */
  62.     count_t argc;           /**< Number of arguments. */
  63.     cmd_arg_t *argv;        /**< Argument vector. */
  64.     void (* help)(void);        /**< Function for printing detailed help. */
  65. };
  66.  
  67. extern spinlock_t cmd_lock;
  68. extern link_t cmd_head;
  69.  
  70. extern void kconsole_init(void);
  71. extern void kconsole(void *prompt);
  72.  
  73. extern int cmd_register(cmd_info_t *cmd);
  74.  
  75. #endif
  76.