/*
 * Copyright (c) 2015-2019 François Tigeot <ftigeot@wolfpond.org>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice unmodified, this list of conditions, and the following
 *    disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef _LINUX_PRINTK_H_
#define _LINUX_PRINTK_H_

#include <sys/stdarg.h>
#include <linux/init.h>
#include <linux/cache.h>

#include <sys/types.h>
#include <sys/systm.h>

struct va_format {
        const char *fmt;
        va_list *va;
};

#define printk(...)     kprintf(__VA_ARGS__)

#define KERN_CONT       ""
#define KERN_EMERG      "<0>"
#define KERN_ALERT      "<1>"
#define KERN_CRIT       "<2>"
#define KERN_ERR        "<3>"
#define KERN_WARNING    "<4>"
#define KERN_NOTICE     "<5>"
#define KERN_INFO       "<6>"
#define KERN_DEBUG      "<7>"

#ifndef pr_fmt
#define pr_fmt(fmt) fmt
#endif

#define pr_emerg(fmt, ...) \
        printk(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__)
#define pr_alert(fmt, ...) \
        printk(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__)
#define pr_crit(fmt, ...) \
        printk(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__)
#define pr_err(fmt, ...) \
        printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
#define pr_warning(fmt, ...) \
        printk(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
#define pr_warn pr_warning
#define pr_notice(fmt, ...) \
        printk(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__)
#define pr_info(fmt, ...) \
        printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
#define pr_cont(fmt, ...) \
        printk(KERN_CONT fmt, ##__VA_ARGS__)

/* pr_devel() should produce zero code unless DEBUG is defined */
#ifdef DEBUG
#define pr_devel(fmt, ...) \
        printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
#else
#define pr_devel(fmt, ...) \
        ({ if (0) printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__); 0; })
#endif

#define pr_debug(fmt, ...) \
        printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)

/*
 * Print a one-time message (analogous to WARN_ONCE() et al):
 */
#define printk_once(x...)                       \
({                                              \
        static bool __print_once;               \
                                                \
        if (!__print_once) {                    \
                __print_once = true;            \
                printk(x);                      \
        }                                       \
})

#define pr_info_once(fmt, ...) do {             \
        static bool __printed_once;             \
                                                \
        if (!__printed_once) {                  \
                __printed_once = true;          \
                kprintf(fmt, ##__VA_ARGS__);    \
        }                                       \
} while (0)

enum {
        DUMP_PREFIX_NONE,
        DUMP_PREFIX_ADDRESS,
        DUMP_PREFIX_OFFSET
};

static inline void
print_hex_dump(const char *level, const char *prefix_str, int prefix_type,
    int rowsize, int groupsize, const void *buf, size_t len, bool ascii)
{
        int flags;

        flags = rowsize;
        if (prefix_type != DUMP_PREFIX_OFFSET)
                flags |= HD_OMIT_COUNT;
        if (!ascii)
                flags |= HD_OMIT_CHARS;

        hexdump(buf, len, prefix_str, flags);
}

#define printk_ratelimit()      1

#endif  /* _LINUX_PRINTK_H_ */