text: /*
   *  shell implementation for finsh shell.
   *
   * COPYRIGHT (C) 2006 - 2013, RT-Thread Development Team
   *
   *  This file is part of RT-Thread (http://www.rt-thread.org)
   *  Maintainer: bernard.xiong <bernard.xiong at gmail.com>
   *
   *  All rights reserved.
   *
   *  This program is free software; you can redistribute it and/or modify
   *  it under the terms of the GNU General Public License as published by
   *  the Free Software Foundation; either version 2 of the License, or
   *  (at your option) any later version.
   *
   *  This program is distributed in the hope that it will be useful,
   *  but WITHOUT ANY WARRANTY; without even the implied warranty of
   *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   *  GNU General Public License for more details.
   *
   *  You should have received a copy of the GNU General Public License along
   *  with this program; if not, write to the Free Software Foundation, Inc.,
   *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
   *
   * Change Logs:
   * Date           Author       Notes
   * 2011-06-02     Bernard      Add finsh_get_prompt function declaration
   */
  
  #ifndef __SHELL_H__
  #define __SHELL_H__
  
  #include <rtthread.h>
  #include "finsh.h"
  
  #ifndef FINSH_THREAD_PRIORITY
  	#define FINSH_THREAD_PRIORITY 20
  #endif
  #ifndef FINSH_THREAD_STACK_SIZE
  	#define FINSH_THREAD_STACK_SIZE 2048
  #endif
  #ifndef FINSH_CMD_SIZE
  	#define FINSH_CMD_SIZE      80
  #endif
  
  #define FINSH_OPTION_ECHO   0x01
  #if defined(FINSH_USING_MSH) || (defined(RT_USING_DFS) && defined(DFS_USING_WORKDIR))
  	#define FINSH_PROMPT        finsh_get_prompt()
  	const char* finsh_get_prompt(void);
  #else
  	#define FINSH_PROMPT        "finsh>>"
  #endif
  
  #ifdef FINSH_USING_HISTORY
  	#ifndef FINSH_HISTORY_LINES
  		#define FINSH_HISTORY_LINES 5
  	#endif
  #endif
  
  #ifdef FINSH_USING_AUTH
  	#ifndef FINSH_PASSWORD_MAX
  		#define FINSH_PASSWORD_MAX RT_NAME_MAX
  	#endif
  	#ifndef FINSH_PASSWORD_MIN
  		#define FINSH_PASSWORD_MIN 6
  	#endif
  	#ifndef FINSH_DEFAULT_PASSWORD
  		#define FINSH_DEFAULT_PASSWORD "rtthread"
  	#endif
  #endif /* FINSH_USING_AUTH */
  
  #ifndef FINSH_THREAD_NAME
  	#define FINSH_THREAD_NAME   "tshell"
  #endif
  
  enum input_stat {
  	WAIT_NORMAL,
  	WAIT_SPEC_KEY,
  	WAIT_FUNC_KEY,
  };
  struct finsh_shell {
  	struct rt_semaphore rx_sem;
  
  	enum input_stat stat;
  
  	rt_uint8_t echo_mode: 1;
  
  #ifdef FINSH_USING_HISTORY
  	rt_uint16_t current_history;
  	rt_uint16_t history_count;
  
  	char cmd_history[FINSH_HISTORY_LINES][FINSH_CMD_SIZE];
  #endif
  
  #ifndef FINSH_USING_MSH_ONLY
  	struct finsh_parser parser;
  #endif
  
  	char line[FINSH_CMD_SIZE];
  	rt_uint8_t line_position;
  	rt_uint8_t line_curpos;
  
  #ifndef RT_USING_POSIX
  	rt_device_t device;
  #endif
  
  #ifdef FINSH_USING_AUTH
  	char password[FINSH_PASSWORD_MAX];
  #endif
  };
  
  void finsh_set_echo(rt_uint32_t echo);
  rt_uint32_t finsh_get_echo(void);
  
  int finsh_system_init(void);
  void finsh_set_device(const char* device_name);
  const char* finsh_get_device(void);
  struct finsh_shell* finsh_get_shell(void);
  
  #ifdef FINSH_USING_AUTH
  	rt_err_t finsh_set_password(const char* password);
  	const char* finsh_get_password(void);
  #endif
  
  #endif
  
  