Merge ../linux-2.6
[linux-2.6] / drivers / s390 / net / ctcdbug.c
1 /*
2  *
3  * linux/drivers/s390/net/ctcdbug.c
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  * This program is free software; you can redistribute it and/or modify
13  * it under the terms of the GNU General Public License as published by
14  * the Free Software Foundation; either version 2, or (at your option)
15  * any later version.
16  *
17  * This program is distributed in the hope that it will be useful,
18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
20  * GNU General Public License for more details.
21  *
22  * You should have received a copy of the GNU General Public License
23  * along with this program; if not, write to the Free Software
24  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25  */
26
27 #include "ctcdbug.h"
28
29 /**
30  * Debug Facility Stuff
31  */
32 debug_info_t *ctc_dbf_setup = NULL;
33 debug_info_t *ctc_dbf_data = NULL;
34 debug_info_t *ctc_dbf_trace = NULL;
35
36 DEFINE_PER_CPU(char[256], ctc_dbf_txt_buf);
37
38 void
39 ctc_unregister_dbf_views(void)
40 {
41         if (ctc_dbf_setup)
42                 debug_unregister(ctc_dbf_setup);
43         if (ctc_dbf_data)
44                 debug_unregister(ctc_dbf_data);
45         if (ctc_dbf_trace)
46                 debug_unregister(ctc_dbf_trace);
47 }
48 int
49 ctc_register_dbf_views(void)
50 {
51         ctc_dbf_setup = debug_register(CTC_DBF_SETUP_NAME,
52                                         CTC_DBF_SETUP_PAGES,
53                                         CTC_DBF_SETUP_NR_AREAS,
54                                         CTC_DBF_SETUP_LEN);
55         ctc_dbf_data = debug_register(CTC_DBF_DATA_NAME,
56                                        CTC_DBF_DATA_PAGES,
57                                        CTC_DBF_DATA_NR_AREAS,
58                                        CTC_DBF_DATA_LEN);
59         ctc_dbf_trace = debug_register(CTC_DBF_TRACE_NAME,
60                                         CTC_DBF_TRACE_PAGES,
61                                         CTC_DBF_TRACE_NR_AREAS,
62                                         CTC_DBF_TRACE_LEN);
63
64         if ((ctc_dbf_setup == NULL) || (ctc_dbf_data == NULL) ||
65             (ctc_dbf_trace == NULL)) {
66                 ctc_unregister_dbf_views();
67                 return -ENOMEM;
68         }
69         debug_register_view(ctc_dbf_setup, &debug_hex_ascii_view);
70         debug_set_level(ctc_dbf_setup, CTC_DBF_SETUP_LEVEL);
71
72         debug_register_view(ctc_dbf_data, &debug_hex_ascii_view);
73         debug_set_level(ctc_dbf_data, CTC_DBF_DATA_LEVEL);
74
75         debug_register_view(ctc_dbf_trace, &debug_hex_ascii_view);
76         debug_set_level(ctc_dbf_trace, CTC_DBF_TRACE_LEVEL);
77
78         return 0;
79 }
80