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 */
32debug_info_t *ctc_dbf_setup = NULL;
33debug_info_t *ctc_dbf_data = NULL;
34debug_info_t *ctc_dbf_trace = NULL;
35
36DEFINE_PER_CPU(char[256], ctc_dbf_txt_buf);
37
38void
39ctc_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}
48int
49ctc_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