drivers/net/wireless/mediatek/mt76/util.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
   4  * Copyright (C) 2004 - 2009 Ivo van Doorn <IvDoorn@gmail.com>
   5  */
   6
   7 #ifndef __MT76_UTIL_H
   8 #define __MT76_UTIL_H
   9
  10 #include <linux/skbuff.h>
  11 #include <linux/bitops.h>
  12 #include <linux/bitfield.h>
  13
  14 #define MT76_INCR(_var, _size) \
  15         (_var = (((_var) + 1) % (_size)))
  16
  17 int mt76_wcid_alloc(unsigned long *mask, int size);
  18
  19 static inline bool
  20 mt76_wcid_mask_test(unsigned long *mask, int idx)
  21 {
  22         return mask[idx / BITS_PER_LONG] & BIT(idx % BITS_PER_LONG);
  23 }
  24
  25 static inline void
  26 mt76_wcid_mask_set(unsigned long *mask, int idx)
  27 {
  28         mask[idx / BITS_PER_LONG] |= BIT(idx % BITS_PER_LONG);
  29 }
  30
  31 static inline void
  32 mt76_wcid_mask_clear(unsigned long *mask, int idx)
  33 {
  34         mask[idx / BITS_PER_LONG] &= ~BIT(idx % BITS_PER_LONG);
  35 }
  36
  37 static inline void
  38 mt76_skb_set_moredata(struct sk_buff *skb, bool enable)
  39 {
  40         struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
  41
  42         if (enable)
  43                 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_MOREDATA);
  44         else
  45                 hdr->frame_control &= ~cpu_to_le16(IEEE80211_FCTL_MOREDATA);
  46 }
  47
  48 #endif