/* SPDX-License-Identifier: Apache-2.0 */
/* Copyright (C) 2018,2019 IBM Corp. */

#ifndef _DEVMEM_H
#define _DEVMEM_H

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

struct devmem {
    int fd;
    void *io;
    void *win;
    off_t phys;
    size_t len;
    off_t pgsize;
};

int devmem_init(struct devmem *ctx);
int devmem_destroy(struct devmem *ctx);

int devmem_probe(struct devmem *ctx);

int devmem_read(struct devmem *ctx, uint32_t phys, void *buf, size_t len);
int devmem_write(struct devmem *ctx, uint32_t phys, const void *buf, size_t len);

int devmem_readl(struct devmem *ctx, uint32_t phys, uint32_t *val);
int devmem_writel(struct devmem *ctx, uint32_t phys, uint32_t val);

#endif