1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 *	Copyright IBM Corp. 2001, 2007
4 *	Authors:	Peter Tiedemann (ptiedem@de.ibm.com)
5 *
6 */
7
8#ifndef _CTCM_DBUG_H_
9#define _CTCM_DBUG_H_
10
11/*
12 * Debug Facility stuff
13 */
14
15#include <asm/debug.h>
16
17#ifdef DEBUG
18 #define do_debug 1
19#else
20 #define do_debug 0
21#endif
22#ifdef DEBUGCCW
23 #define do_debug_ccw 1
24 #define DEBUGDATA 1
25#else
26 #define do_debug_ccw 0
27#endif
28#ifdef DEBUGDATA
29 #define do_debug_data 1
30#else
31 #define do_debug_data 0
32#endif
33
34/* define dbf debug levels similar to kernel msg levels */
35#define	CTC_DBF_ALWAYS	0	/* always print this 			*/
36#define	CTC_DBF_EMERG	0	/* system is unusable			*/
37#define	CTC_DBF_ALERT	1	/* action must be taken immediately	*/
38#define	CTC_DBF_CRIT	2	/* critical conditions			*/
39#define	CTC_DBF_ERROR	3	/* error conditions			*/
40#define	CTC_DBF_WARN	4	/* warning conditions			*/
41#define	CTC_DBF_NOTICE	5	/* normal but significant condition	*/
42#define	CTC_DBF_INFO	5	/* informational			*/
43#define	CTC_DBF_DEBUG	6	/* debug-level messages			*/
44
45enum ctcm_dbf_names {
46	CTCM_DBF_SETUP,
47	CTCM_DBF_ERROR,
48	CTCM_DBF_TRACE,
49	CTCM_DBF_MPC_SETUP,
50	CTCM_DBF_MPC_ERROR,
51	CTCM_DBF_MPC_TRACE,
52	CTCM_DBF_INFOS	/* must be last element */
53};
54
55struct ctcm_dbf_info {
56	char name[DEBUG_MAX_NAME_LEN];
57	int pages;
58	int areas;
59	int len;
60	int level;
61	debug_info_t *id;
62};
63
64extern struct ctcm_dbf_info ctcm_dbf[CTCM_DBF_INFOS];
65
66int ctcm_register_dbf_views(void);
67void ctcm_unregister_dbf_views(void);
68__printf(3, 4)
69void ctcm_dbf_longtext(enum ctcm_dbf_names dbf_nix, int level, char *text, ...);
70
71static inline const char *strtail(const char *s, int n)
72{
73	int l = strlen(s);
74	return (l > n) ? s + (l - n) : s;
75}
76
77#define CTCM_FUNTAIL strtail((char *)__func__, 16)
78
79#define CTCM_DBF_TEXT(name, level, text) \
80	do { \
81		debug_text_event(ctcm_dbf[CTCM_DBF_##name].id, level, text); \
82	} while (0)
83
84#define CTCM_DBF_HEX(name, level, addr, len) \
85	do { \
86		debug_event(ctcm_dbf[CTCM_DBF_##name].id, \
87					level, (void *)(addr), len); \
88	} while (0)
89
90#define CTCM_DBF_TEXT_(name, level, text...) \
91	ctcm_dbf_longtext(CTCM_DBF_##name, level, text)
92
93/*
94 * cat : one of {setup, mpc_setup, trace, mpc_trace, error, mpc_error}.
95 * dev : netdevice with valid name field.
96 * text: any text string.
97 */
98#define CTCM_DBF_DEV_NAME(cat, dev, text) \
99	do { \
100		CTCM_DBF_TEXT_(cat, CTC_DBF_INFO, "%s(%s) :- %s", \
101			CTCM_FUNTAIL, dev->name, text); \
102	} while (0)
103
104#define MPC_DBF_DEV_NAME(cat, dev, text) \
105	do { \
106		CTCM_DBF_TEXT_(MPC_##cat, CTC_DBF_INFO, "%s(%s) := %s", \
107			CTCM_FUNTAIL, dev->name, text); \
108	} while (0)
109
110#define CTCMY_DBF_DEV_NAME(cat, dev, text) \
111	do { \
112		if (IS_MPCDEV(dev)) \
113			MPC_DBF_DEV_NAME(cat, dev, text); \
114		else \
115			CTCM_DBF_DEV_NAME(cat, dev, text); \
116	} while (0)
117
118/*
119 * cat : one of {setup, mpc_setup, trace, mpc_trace, error, mpc_error}.
120 * dev : netdevice.
121 * text: any text string.
122 */
123#define CTCM_DBF_DEV(cat, dev, text) \
124	do { \
125		CTCM_DBF_TEXT_(cat, CTC_DBF_INFO, "%s(%p) :-: %s", \
126			CTCM_FUNTAIL, dev, text); \
127	} while (0)
128
129#define MPC_DBF_DEV(cat, dev, text) \
130	do { \
131		CTCM_DBF_TEXT_(MPC_##cat, CTC_DBF_INFO, "%s(%p) :=: %s", \
132			CTCM_FUNTAIL, dev, text); \
133	} while (0)
134
135#define CTCMY_DBF_DEV(cat, dev, text) \
136	do { \
137		if (IS_MPCDEV(dev)) \
138			MPC_DBF_DEV(cat, dev, text); \
139		else \
140			CTCM_DBF_DEV(cat, dev, text); \
141	} while (0)
142
143#endif
144