/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * This file is part of wl1271
 *
 * Copyright (C) 2009 Nokia Corporation
 *
 * Contact: Luciano Coelho <luciano.coelho@nokia.com>
 */

#ifndef __DEBUGFS_H__
#define __DEBUGFS_H__

#include "wlcore.h"

__printf(4, 5) int wl1271_format_buffer(char __user *userbuf, size_t count,
                                        loff_t *ppos, char *fmt, ...);

int wl1271_debugfs_init(struct wl1271 *wl);
void wl1271_debugfs_exit(struct wl1271 *wl);
void wl1271_debugfs_reset(struct wl1271 *wl);
void wl1271_debugfs_update_stats(struct wl1271 *wl);

#define DEBUGFS_FORMAT_BUFFER_SIZE 256

#define DEBUGFS_READONLY_FILE(name, fmt, value...)                      \
static ssize_t name## _read(struct file *file, char __user *userbuf,    \
                            size_t count, loff_t *ppos)                 \
{                                                                       \
        struct wl1271 *wl = file->private_data;                         \
        return wl1271_format_buffer(userbuf, count, ppos,               \
                                    fmt "\n", ##value);                 \
}                                                                       \
                                                                        \
static const struct file_operations name## _ops = {                     \
        .read = name## _read,                                           \
        .open = simple_open,                                            \
        .llseek = generic_file_llseek,                                  \
};

#define DEBUGFS_ADD(name, parent)                                       \
        do {                                                            \
                debugfs_create_file(#name, 0400, parent,                \
                                    wl, &name## _ops);                  \
        } while (0)


#define DEBUGFS_ADD_PREFIX(prefix, name, parent)                        \
        do {                                                            \
                debugfs_create_file(#name, 0400, parent,                \
                                    wl, &prefix## _## name## _ops);     \
        } while (0)

#define DEBUGFS_FWSTATS_FILE(sub, name, fmt, struct_type)               \
static ssize_t sub## _ ##name## _read(struct file *file,                \
                                      char __user *userbuf,             \
                                      size_t count, loff_t *ppos)       \
{                                                                       \
        struct wl1271 *wl = file->private_data;                         \
        struct struct_type *stats = wl->stats.fw_stats;                 \
                                                                        \
        wl1271_debugfs_update_stats(wl);                                \
                                                                        \
        return wl1271_format_buffer(userbuf, count, ppos, fmt "\n",     \
                                    stats->sub.name);                   \
}                                                                       \
                                                                        \
static const struct file_operations sub## _ ##name## _ops = {           \
        .read = sub## _ ##name## _read,                                 \
        .open = simple_open,                                            \
        .llseek = generic_file_llseek,                                  \
};

#define DEBUGFS_FWSTATS_FILE_ARRAY(sub, name, len, struct_type)         \
static ssize_t sub## _ ##name## _read(struct file *file,                \
                                      char __user *userbuf,             \
                                      size_t count, loff_t *ppos)       \
{                                                                       \
        struct wl1271 *wl = file->private_data;                         \
        struct struct_type *stats = wl->stats.fw_stats;                 \
        char buf[DEBUGFS_FORMAT_BUFFER_SIZE] = "";                      \
        int pos = 0;                                                    \
        int i;                                                          \
                                                                        \
        wl1271_debugfs_update_stats(wl);                                \
                                                                        \
        for (i = 0; i < len && pos < sizeof(buf); i++)                  \
                pos += snprintf(buf + pos, sizeof(buf) - pos,           \
                         "[%d] = %d\n", i, stats->sub.name[i]);         \
                                                                        \
        return wl1271_format_buffer(userbuf, count, ppos, "%s", buf);   \
}                                                                       \
                                                                        \
static const struct file_operations sub## _ ##name## _ops = {           \
        .read = sub## _ ##name## _read,                                 \
        .open = simple_open,                                            \
        .llseek = generic_file_llseek,                                  \
};

#define DEBUGFS_FWSTATS_ADD(sub, name)                                  \
        DEBUGFS_ADD(sub## _ ##name, stats)


#endif /* WL1271_DEBUGFS_H */