linux/drivers/scsi/scsi_pm.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 *	scsi_pm.c	Copyright (C) 2010 Alan Stern
 *
 *	SCSI dynamic Power Management
 *		Initial version: Alan Stern <[email protected]>
 */

#include <linux/pm_runtime.h>
#include <linux/export.h>
#include <linux/blk-pm.h>

#include <scsi/scsi.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_driver.h>
#include <scsi/scsi_host.h>

#include "scsi_priv.h"

#ifdef CONFIG_PM_SLEEP

static int do_scsi_suspend(struct device *dev, const struct dev_pm_ops *pm)
{ … }

static int do_scsi_freeze(struct device *dev, const struct dev_pm_ops *pm)
{ … }

static int do_scsi_poweroff(struct device *dev, const struct dev_pm_ops *pm)
{ … }

static int do_scsi_resume(struct device *dev, const struct dev_pm_ops *pm)
{ … }

static int do_scsi_thaw(struct device *dev, const struct dev_pm_ops *pm)
{ … }

static int do_scsi_restore(struct device *dev, const struct dev_pm_ops *pm)
{ … }

static int scsi_dev_type_suspend(struct device *dev,
		int (*cb)(struct device *, const struct dev_pm_ops *))
{ … }

static int
scsi_bus_suspend_common(struct device *dev,
		int (*cb)(struct device *, const struct dev_pm_ops *))
{ … }

static int scsi_bus_resume_common(struct device *dev,
		int (*cb)(struct device *, const struct dev_pm_ops *))
{ … }

static int scsi_bus_prepare(struct device *dev)
{ … }

static int scsi_bus_suspend(struct device *dev)
{ … }

static int scsi_bus_resume(struct device *dev)
{ … }

static int scsi_bus_freeze(struct device *dev)
{ … }

static int scsi_bus_thaw(struct device *dev)
{ … }

static int scsi_bus_poweroff(struct device *dev)
{ … }

static int scsi_bus_restore(struct device *dev)
{ … }

#else /* CONFIG_PM_SLEEP */

#define scsi_bus_prepare …
#define scsi_bus_suspend …
#define scsi_bus_resume …
#define scsi_bus_freeze …
#define scsi_bus_thaw …
#define scsi_bus_poweroff …
#define scsi_bus_restore …

#endif /* CONFIG_PM_SLEEP */

static int sdev_runtime_suspend(struct device *dev)
{ … }

static int scsi_runtime_suspend(struct device *dev)
{ … }

static int sdev_runtime_resume(struct device *dev)
{ … }

static int scsi_runtime_resume(struct device *dev)
{ … }

static int scsi_runtime_idle(struct device *dev)
{ … }

int scsi_autopm_get_device(struct scsi_device *sdev)
{ … }
EXPORT_SYMBOL_GPL(…);

void scsi_autopm_put_device(struct scsi_device *sdev)
{ … }
EXPORT_SYMBOL_GPL(…);

void scsi_autopm_get_target(struct scsi_target *starget)
{ … }

void scsi_autopm_put_target(struct scsi_target *starget)
{ … }

int scsi_autopm_get_host(struct Scsi_Host *shost)
{ … }

void scsi_autopm_put_host(struct Scsi_Host *shost)
{ … }

const struct dev_pm_ops scsi_bus_pm_ops = …;