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  1. /* Copyright (c) 2008, Tim Post <tinkertim@gmail.com>
  2.  * All rights reserved.
  3.  *
  4.  * Redistribution and use in source and binary forms, with or without
  5.  * modification, are permitted provided that the following conditions are met:
  6.  *
  7.  * Redistributions of source code must retain the above copyright notice, this
  8.  * list of conditions and the following disclaimer.
  9.  *
  10.  * Redistributions in binary form must reproduce the above copyright notice,
  11.  * this list of conditions and the following disclaimer in the documentation
  12.  * and/or other materials provided with the distribution.
  13.  *
  14.  * Neither the name of the original program's authors nor the names of its
  15.  * contributors may be used to endorse or promote products derived from this
  16.  * software without specific prior written permission.
  17.  *
  18.  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  19.  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  20.  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  21.  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  22.  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  23.  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  24.  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  25.  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  26.  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  27.  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  28.  * POSSIBILITY OF SUCH DAMAGE.
  29.  */
  30.  
  31. #include <stdio.h>
  32. #include <stdlib.h>
  33. #include <console.h>
  34. #include "config.h"
  35. #include "util.h"
  36. #include "errors.h"
  37. #include "entry.h"
  38. #include "kcon.h"
  39. #include "cmds.h"
  40.  
  41. static char *cmdname = "kcon";
  42.  
  43. /* Dispays help for kcon in various levels */
  44. void help_cmd_kcon(unsigned int level)
  45. {
  46.     printf("`kcon' switches to the kernel debug console.\n");
  47.  
  48.     if (level != HELP_SHORT) {
  49.         printf("Usage:  %s\n", cmdname);
  50.     }
  51.  
  52.     return;
  53. }
  54.  
  55. /* Main entry point for kcon, accepts an array of arguments */
  56. int cmd_kcon(char **argv)
  57. {
  58.     unsigned int argc;
  59.  
  60.     argc = cli_count_args(argv);
  61.  
  62.     if (argc != 1) {
  63.         printf("%s - incorrect number of arguments. Try `%s --help'\n",
  64.             cmdname, cmdname);
  65.         return CMD_FAILURE;
  66.     }
  67.  
  68.     console_kcon_enable();
  69.  
  70.     return CMD_SUCCESS;
  71. }
  72.  
  73.