/*
 * Copyright (c) 2019 AVM GmbH <info@avm.de>.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef __ERRSTAT_H__
#define __ERRSTAT_H__

#include <linux/kernel.h>
#include <linux/kobject.h>
#include <linux/atomic.h>
#include <linux/sysfs.h>

/* User-allocated struct for the domain */
struct errstat_domain_storage {
	unsigned int num_entries;
	char const *const *names;
	atomic_t *counters;
	atomic_t unknown;
	struct kobject *parent;
	struct kobj_attribute attr;
};

struct errstat_domain;

struct errstat_domain *errstat_domain_init(struct errstat_domain_storage *dom,
					   const char *const *names,
					   atomic_t *counters,
					   unsigned int num_entries);
unsigned long errstat_track(struct errstat_domain *dom, unsigned long err);
int errstat_sysfs_attach(struct errstat_domain *dom, struct kobject *parent,
			 const char *name);
void errstat_sysfs_detach(struct errstat_domain *dom);

#endif // __ERRSTAT_H__