/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Copyright (C) 2015-2017 Pengutronix, Uwe Kleine-König <kernel@pengutronix.de>
 */
#include <linux/kernel.h>
#include <linux/kthread.h>
#include <linux/siox.h>

#define to_siox_master(_dev)    container_of((_dev), struct siox_master, dev)
struct siox_master {
        /* these fields should be initialized by the driver */
        int busno;
        int (*pushpull)(struct siox_master *smaster,
                        size_t setbuf_len, const u8 setbuf[],
                        size_t getbuf_len, u8 getbuf[]);

        /* might be initialized by the driver, if 0 it is set to HZ / 40 */
        unsigned long poll_interval; /* in jiffies */

        /* framework private stuff */
        struct mutex lock;
        bool active;
        struct module *owner;
        struct device dev;
        unsigned int num_devices;
        struct list_head devices;

        size_t setbuf_len, getbuf_len;
        size_t buf_len;
        u8 *buf;
        u8 status;

        unsigned long last_poll;
        struct task_struct *poll_thread;
};

static inline void *siox_master_get_devdata(struct siox_master *smaster)
{
        return dev_get_drvdata(&smaster->dev);
}

struct siox_master *siox_master_alloc(struct device *dev, size_t size);
static inline void siox_master_put(struct siox_master *smaster)
{
        put_device(&smaster->dev);
}

struct siox_master *devm_siox_master_alloc(struct device *dev, size_t size);

int siox_master_register(struct siox_master *smaster);
void siox_master_unregister(struct siox_master *smaster);

int devm_siox_master_register(struct device *dev, struct siox_master *smaster);