/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Greybus bundles
 *
 * Copyright 2014 Google Inc.
 * Copyright 2014 Linaro Ltd.
 */

#ifndef __BUNDLE_H
#define __BUNDLE_H

#include <linux/types.h>
#include <linux/list.h>
#include <linux/pm_runtime.h>
#include <linux/device.h>

#define BUNDLE_ID_NONE  U8_MAX

/* Greybus "public" definitions" */
struct gb_bundle {
        struct device           dev;
        struct gb_interface     *intf;

        u8                      id;
        u8                      class;
        u8                      class_major;
        u8                      class_minor;

        size_t                  num_cports;
        struct greybus_descriptor_cport *cport_desc;

        struct list_head        connections;
        u8                      *state;

        struct list_head        links;  /* interface->bundles */
};
#define to_gb_bundle(d) container_of(d, struct gb_bundle, dev)

/* Greybus "private" definitions" */
struct gb_bundle *gb_bundle_create(struct gb_interface *intf, u8 bundle_id,
                                   u8 class);
int gb_bundle_add(struct gb_bundle *bundle);
void gb_bundle_destroy(struct gb_bundle *bundle);

/* Bundle Runtime PM wrappers */
#ifdef CONFIG_PM
static inline int gb_pm_runtime_get_sync(struct gb_bundle *bundle)
{
        int retval;

        retval = pm_runtime_get_sync(&bundle->dev);
        if (retval < 0) {
                dev_err(&bundle->dev,
                        "pm_runtime_get_sync failed: %d\n", retval);
                pm_runtime_put_noidle(&bundle->dev);
                return retval;
        }

        return 0;
}

static inline int gb_pm_runtime_put_autosuspend(struct gb_bundle *bundle)
{
        int retval;

        pm_runtime_mark_last_busy(&bundle->dev);
        retval = pm_runtime_put_autosuspend(&bundle->dev);

        return retval;
}

static inline void gb_pm_runtime_get_noresume(struct gb_bundle *bundle)
{
        pm_runtime_get_noresume(&bundle->dev);
}

static inline void gb_pm_runtime_put_noidle(struct gb_bundle *bundle)
{
        pm_runtime_put_noidle(&bundle->dev);
}

#else
static inline int gb_pm_runtime_get_sync(struct gb_bundle *bundle)
{ return 0; }
static inline int gb_pm_runtime_put_autosuspend(struct gb_bundle *bundle)
{ return 0; }

static inline void gb_pm_runtime_get_noresume(struct gb_bundle *bundle) {}
static inline void gb_pm_runtime_put_noidle(struct gb_bundle *bundle) {}
#endif

#endif /* __BUNDLE_H */