drivers/s390/net/ctcdbug.c

   1 /*
   2  *
   3  * linux/drivers/s390/net/ctcdbug.c ($Revision: 1.4 $)
   4  *
   5  * CTC / ESCON network driver - s390 dbf exploit.
   6  *
   7  * Copyright 2000,2003 IBM Corporation
   8  *
   9  *    Author(s): Original Code written by
  10  *                        Peter Tiedemann (ptiedem@de.ibm.com)
  11  *
  12  *    $Revision: 1.4 $   $Date: 2004/08/04 10:11:59 $
  13  *
  14  * This program is free software; you can redistribute it and/or modify
  15  * it under the terms of the GNU General Public License as published by
  16  * the Free Software Foundation; either version 2, or (at your option)
  17  * any later version.
  18  *
  19  * This program is distributed in the hope that it will be useful,
  20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  * GNU General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU General Public License
  25  * along with this program; if not, write to the Free Software
  26  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  27  */
  28
  29 #include "ctcdbug.h"
  30
  31 /**
  32  * Debug Facility Stuff
  33  */
  34 debug_info_t *ctc_dbf_setup = NULL;
  35 debug_info_t *ctc_dbf_data = NULL;
  36 debug_info_t *ctc_dbf_trace = NULL;
  37
  38 DEFINE_PER_CPU(char[256], ctc_dbf_txt_buf);
  39
  40 void
  41 ctc_unregister_dbf_views(void)
  42 {
  43         if (ctc_dbf_setup)
  44                 debug_unregister(ctc_dbf_setup);
  45         if (ctc_dbf_data)
  46                 debug_unregister(ctc_dbf_data);
  47         if (ctc_dbf_trace)
  48                 debug_unregister(ctc_dbf_trace);
  49 }
  50 int
  51 ctc_register_dbf_views(void)
  52 {
  53         ctc_dbf_setup = debug_register(CTC_DBF_SETUP_NAME,
  54                                         CTC_DBF_SETUP_INDEX,
  55                                         CTC_DBF_SETUP_NR_AREAS,
  56                                         CTC_DBF_SETUP_LEN);
  57         ctc_dbf_data = debug_register(CTC_DBF_DATA_NAME,
  58                                        CTC_DBF_DATA_INDEX,
  59                                        CTC_DBF_DATA_NR_AREAS,
  60                                        CTC_DBF_DATA_LEN);
  61         ctc_dbf_trace = debug_register(CTC_DBF_TRACE_NAME,
  62                                         CTC_DBF_TRACE_INDEX,
  63                                         CTC_DBF_TRACE_NR_AREAS,
  64                                         CTC_DBF_TRACE_LEN);
  65
  66         if ((ctc_dbf_setup == NULL) || (ctc_dbf_data == NULL) ||
  67             (ctc_dbf_trace == NULL)) {
  68                 ctc_unregister_dbf_views();
  69                 return -ENOMEM;
  70         }
  71         debug_register_view(ctc_dbf_setup, &debug_hex_ascii_view);
  72         debug_set_level(ctc_dbf_setup, CTC_DBF_SETUP_LEVEL);
  73
  74         debug_register_view(ctc_dbf_data, &debug_hex_ascii_view);
  75         debug_set_level(ctc_dbf_data, CTC_DBF_DATA_LEVEL);
  76
  77         debug_register_view(ctc_dbf_trace, &debug_hex_ascii_view);
  78         debug_set_level(ctc_dbf_trace, CTC_DBF_TRACE_LEVEL);
  79
  80         return 0;
  81 }
  82
  83