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Commit a6cb869b authored by Varka Bhadram's avatar Varka Bhadram Committed by Marcel Holtmann
Browse files

cfg802154: add PM hooks 



This patch help to implement suspend/resume in mac802154, these
hooks will be run before the device is suspended and after it
resumes.

Signed-off-by: default avatarVarka Bhadram <varkab@cdac.in>
Signed-off-by: default avatarAlexander Aring <alex.aring@gmail.com>
Signed-off-by: default avatarMarcel Holtmann <marcel@holtmann.org>
parent c4227c8a

include/net/cfg802154.h

+2 −0
Original line number Diff line number Diff line
@@ -34,6 +34,8 @@ struct cfg802154_ops { 
							   int type);

	void	(*del_virtual_intf_deprecated)(struct wpan_phy *wpan_phy,

					       struct net_device *dev);

	int	(*suspend)(struct wpan_phy *wpan_phy);

	int	(*resume)(struct wpan_phy *wpan_phy);

	int	(*add_virtual_intf)(struct wpan_phy *wpan_phy,

				    const char *name,

				    unsigned char name_assign_type,

net/ieee802154/rdev-ops.h

+20 −0
Original line number Diff line number Diff line
@@ -23,6 +23,26 @@ rdev_del_virtual_intf_deprecated(struct cfg802154_registered_device *rdev, 
	rdev->ops->del_virtual_intf_deprecated(&rdev->wpan_phy, dev);

}



static inline int

rdev_suspend(struct cfg802154_registered_device *rdev)

{

	int ret;

	trace_802154_rdev_suspend(&rdev->wpan_phy);

	ret = rdev->ops->suspend(&rdev->wpan_phy);

	trace_802154_rdev_return_int(&rdev->wpan_phy, ret);

	return ret;

}



static inline int

rdev_resume(struct cfg802154_registered_device *rdev)

{

	int ret;

	trace_802154_rdev_resume(&rdev->wpan_phy);

	ret = rdev->ops->resume(&rdev->wpan_phy);

	trace_802154_rdev_return_int(&rdev->wpan_phy, ret);

	return ret;

}



static inline int

rdev_add_virtual_intf(struct cfg802154_registered_device *rdev, char *name,

		      unsigned char name_assign_type,

net/ieee802154/sysfs.c

+38 −0
Original line number Diff line number Diff line
@@ -14,11 +14,13 @@ 
 */



#include <linux/device.h>

#include <linux/rtnetlink.h>



#include <net/cfg802154.h>



#include "core.h"

#include "sysfs.h"

#include "rdev-ops.h"



static inline struct cfg802154_registered_device *

dev_to_rdev(struct device *dev)
@@ -62,10 +64,46 @@ static struct attribute *pmib_attrs[] = { 
};

ATTRIBUTE_GROUPS(pmib);



#ifdef CONFIG_PM_SLEEP

static int wpan_phy_suspend(struct device *dev)

{

	struct cfg802154_registered_device *rdev = dev_to_rdev(dev);

	int ret = 0;



	if (rdev->ops->suspend) {

		rtnl_lock();

		ret = rdev_suspend(rdev);

		rtnl_unlock();

	}



	return ret;

}



static int wpan_phy_resume(struct device *dev)

{

	struct cfg802154_registered_device *rdev = dev_to_rdev(dev);

	int ret = 0;



	if (rdev->ops->resume) {

		rtnl_lock();

		ret = rdev_resume(rdev);

		rtnl_unlock();

	}



	return ret;

}



static SIMPLE_DEV_PM_OPS(wpan_phy_pm_ops, wpan_phy_suspend, wpan_phy_resume);

#define WPAN_PHY_PM_OPS (&wpan_phy_pm_ops)

#else

#define WPAN_PHY_PM_OPS NULL

#endif



struct class wpan_phy_class = {

	.name = "ieee802154",

	.dev_release = wpan_phy_release,

	.dev_groups = pmib_groups,

	.pm = WPAN_PHY_PM_OPS,

};



int wpan_phy_sysfs_init(void)

net/ieee802154/trace.h

+22 −0
Original line number Diff line number Diff line
@@ -40,6 +40,28 @@ 
 *			rdev->ops traces		     *

 *************************************************************/



DECLARE_EVENT_CLASS(wpan_phy_only_evt,

	TP_PROTO(struct wpan_phy *wpan_phy),

	TP_ARGS(wpan_phy),

	TP_STRUCT__entry(

		WPAN_PHY_ENTRY

	),

	TP_fast_assign(

		WPAN_PHY_ASSIGN;

	),

	TP_printk(WPAN_PHY_PR_FMT, WPAN_PHY_PR_ARG)

);



DEFINE_EVENT(wpan_phy_only_evt, 802154_rdev_suspend,

	TP_PROTO(struct wpan_phy *wpan_phy),

	TP_ARGS(wpan_phy)

);



DEFINE_EVENT(wpan_phy_only_evt, 802154_rdev_resume,

	TP_PROTO(struct wpan_phy *wpan_phy),

	TP_ARGS(wpan_phy)

);



TRACE_EVENT(802154_rdev_add_virtual_intf,

	TP_PROTO(struct wpan_phy *wpan_phy, char *name,

		 enum nl802154_iftype type, __le64 extended_addr),