diff options
| author | Varka Bhadram <varkabhadram@gmail.com> | 2015-06-24 11:36:35 +0200 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2015-07-23 17:10:49 +0200 |
| commit | a6cb869b3b7c16fd7c3ee766dd9f9a4fdda7edf9 (patch) | |
| tree | a62ccbcbd43f12ffd7025f897134fd37e3d7b0b3 /net/ieee802154 | |
| parent | c4227c8a6246b30793bd7360113ddc7b66d526dc (diff) | |
| download | linux-a6cb869b3b7c16fd7c3ee766dd9f9a4fdda7edf9.tar.bz2 | |
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: Varka Bhadram <varkab@cdac.in>
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'net/ieee802154')
| -rw-r--r-- | net/ieee802154/rdev-ops.h | 20 | ||||
| -rw-r--r-- | net/ieee802154/sysfs.c | 38 | ||||
| -rw-r--r-- | net/ieee802154/trace.h | 22 |
3 files changed, 80 insertions, 0 deletions
diff --git a/net/ieee802154/rdev-ops.h b/net/ieee802154/rdev-ops.h index b2155a123f6c..8d5960a37195 100644 --- a/net/ieee802154/rdev-ops.h +++ b/net/ieee802154/rdev-ops.h @@ -24,6 +24,26 @@ rdev_del_virtual_intf_deprecated(struct cfg802154_registered_device *rdev, } 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, enum nl802154_iftype type, __le64 extended_addr) diff --git a/net/ieee802154/sysfs.c b/net/ieee802154/sysfs.c index 133b4280660c..bd88525b041e 100644 --- a/net/ieee802154/sysfs.c +++ b/net/ieee802154/sysfs.c @@ -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) diff --git a/net/ieee802154/trace.h b/net/ieee802154/trace.h index 9b5f0eb36696..4399b7fbaa31 100644 --- a/net/ieee802154/trace.h +++ b/net/ieee802154/trace.h @@ -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), |