/* SPDX-License-Identifier: GPL-2.0 */
/*
 *      Copyright IBM Corp. 2001, 2007
 *      Authors:        Peter Tiedemann (ptiedem@de.ibm.com)
 *
 */

#ifndef _CTCM_DBUG_H_
#define _CTCM_DBUG_H_

/*
 * Debug Facility stuff
 */

#include <asm/debug.h>

#ifdef DEBUG
 #define do_debug 1
#else
 #define do_debug 0
#endif
#ifdef DEBUGCCW
 #define do_debug_ccw 1
 #define DEBUGDATA 1
#else
 #define do_debug_ccw 0
#endif
#ifdef DEBUGDATA
 #define do_debug_data 1
#else
 #define do_debug_data 0
#endif

/* define dbf debug levels similar to kernel msg levels */
#define CTC_DBF_ALWAYS  0       /* always print this                    */
#define CTC_DBF_EMERG   0       /* system is unusable                   */
#define CTC_DBF_ALERT   1       /* action must be taken immediately     */
#define CTC_DBF_CRIT    2       /* critical conditions                  */
#define CTC_DBF_ERROR   3       /* error conditions                     */
#define CTC_DBF_WARN    4       /* warning conditions                   */
#define CTC_DBF_NOTICE  5       /* normal but significant condition     */
#define CTC_DBF_INFO    5       /* informational                        */
#define CTC_DBF_DEBUG   6       /* debug-level messages                 */

enum ctcm_dbf_names {
        CTCM_DBF_SETUP,
        CTCM_DBF_ERROR,
        CTCM_DBF_TRACE,
        CTCM_DBF_MPC_SETUP,
        CTCM_DBF_MPC_ERROR,
        CTCM_DBF_MPC_TRACE,
        CTCM_DBF_INFOS  /* must be last element */
};

struct ctcm_dbf_info {
        char name[DEBUG_MAX_NAME_LEN];
        int pages;
        int areas;
        int len;
        int level;
        debug_info_t *id;
};

extern struct ctcm_dbf_info ctcm_dbf[CTCM_DBF_INFOS];

int ctcm_register_dbf_views(void);
void ctcm_unregister_dbf_views(void);
__printf(3, 4)
void ctcm_dbf_longtext(enum ctcm_dbf_names dbf_nix, int level, char *text, ...);

static inline const char *strtail(const char *s, int n)
{
        int l = strlen(s);
        return (l > n) ? s + (l - n) : s;
}

#define CTCM_FUNTAIL strtail((char *)__func__, 16)

#define CTCM_DBF_TEXT(name, level, text) \
        do { \
                debug_text_event(ctcm_dbf[CTCM_DBF_##name].id, level, text); \
        } while (0)

#define CTCM_DBF_HEX(name, level, addr, len) \
        do { \
                debug_event(ctcm_dbf[CTCM_DBF_##name].id, \
                                        level, (void *)(addr), len); \
        } while (0)

#define CTCM_DBF_TEXT_(name, level, text...) \
        ctcm_dbf_longtext(CTCM_DBF_##name, level, text)

/*
 * cat : one of {setup, mpc_setup, trace, mpc_trace, error, mpc_error}.
 * dev : netdevice with valid name field.
 * text: any text string.
 */
#define CTCM_DBF_DEV_NAME(cat, dev, text) \
        do { \
                CTCM_DBF_TEXT_(cat, CTC_DBF_INFO, "%s(%s) :- %s", \
                        CTCM_FUNTAIL, dev->name, text); \
        } while (0)

#define MPC_DBF_DEV_NAME(cat, dev, text) \
        do { \
                CTCM_DBF_TEXT_(MPC_##cat, CTC_DBF_INFO, "%s(%s) := %s", \
                        CTCM_FUNTAIL, dev->name, text); \
        } while (0)

#define CTCMY_DBF_DEV_NAME(cat, dev, text) \
        do { \
                if (IS_MPCDEV(dev)) \
                        MPC_DBF_DEV_NAME(cat, dev, text); \
                else \
                        CTCM_DBF_DEV_NAME(cat, dev, text); \
        } while (0)

/*
 * cat : one of {setup, mpc_setup, trace, mpc_trace, error, mpc_error}.
 * dev : netdevice.
 * text: any text string.
 */
#define CTCM_DBF_DEV(cat, dev, text) \
        do { \
                CTCM_DBF_TEXT_(cat, CTC_DBF_INFO, "%s(%p) :-: %s", \
                        CTCM_FUNTAIL, dev, text); \
        } while (0)

#define MPC_DBF_DEV(cat, dev, text) \
        do { \
                CTCM_DBF_TEXT_(MPC_##cat, CTC_DBF_INFO, "%s(%p) :=: %s", \
                        CTCM_FUNTAIL, dev, text); \
        } while (0)

#define CTCMY_DBF_DEV(cat, dev, text) \
        do { \
                if (IS_MPCDEV(dev)) \
                        MPC_DBF_DEV(cat, dev, text); \
                else \
                        CTCM_DBF_DEV(cat, dev, text); \
        } while (0)

#endif