1 /* This program is free software; you can redistribute it and/or modify
2 * it under the terms of the GNU General Public License version 2
3 * as published by the Free Software Foundation.
5 * This program is distributed in the hope that it will be useful,
6 * but WITHOUT ANY WARRANTY; without even the implied warranty of
7 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
8 * GNU General Public License for more details.
11 * Alexander Aring <aar@pengutronix.de>
13 * Based on: net/mac80211/util.c
16 #include "ieee802154_i.h"
18 /* privid for wpan_phys to determine whether they belong to us or not */
19 const void *const mac802154_wpan_phy_privid
= &mac802154_wpan_phy_privid
;
21 void ieee802154_wake_queue(struct ieee802154_hw
*hw
)
23 struct ieee802154_local
*local
= hw_to_local(hw
);
24 struct ieee802154_sub_if_data
*sdata
;
27 list_for_each_entry_rcu(sdata
, &local
->interfaces
, list
) {
31 netif_wake_queue(sdata
->dev
);
35 EXPORT_SYMBOL(ieee802154_wake_queue
);
37 void ieee802154_stop_queue(struct ieee802154_hw
*hw
)
39 struct ieee802154_local
*local
= hw_to_local(hw
);
40 struct ieee802154_sub_if_data
*sdata
;
43 list_for_each_entry_rcu(sdata
, &local
->interfaces
, list
) {
47 netif_stop_queue(sdata
->dev
);
51 EXPORT_SYMBOL(ieee802154_stop_queue
);
53 enum hrtimer_restart
ieee802154_xmit_ifs_timer(struct hrtimer
*timer
)
55 struct ieee802154_local
*local
=
56 container_of(timer
, struct ieee802154_local
, ifs_timer
);
58 ieee802154_wake_queue(&local
->hw
);
60 return HRTIMER_NORESTART
;
63 void ieee802154_xmit_complete(struct ieee802154_hw
*hw
, struct sk_buff
*skb
,
67 struct ieee802154_local
*local
= hw_to_local(hw
);
70 /* If transceiver sets CRC on his own we need to use lifs
71 * threshold len above 16 otherwise 18, because it's not
74 if (hw
->flags
& IEEE802154_HW_TX_OMIT_CKSUM
)
75 max_sifs_size
= IEEE802154_MAX_SIFS_FRAME_SIZE
-
78 max_sifs_size
= IEEE802154_MAX_SIFS_FRAME_SIZE
;
80 if (skb
->len
> max_sifs_size
)
81 hrtimer_start(&local
->ifs_timer
,
82 ktime_set(0, hw
->phy
->lifs_period
* NSEC_PER_USEC
),
85 hrtimer_start(&local
->ifs_timer
,
86 ktime_set(0, hw
->phy
->sifs_period
* NSEC_PER_USEC
),
91 ieee802154_wake_queue(hw
);
95 EXPORT_SYMBOL(ieee802154_xmit_complete
);