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authorThomas Pedersen <thomas@adapt-ip.com>2020-04-01 18:18:02 -0700
committerJohannes Berg <johannes.berg@intel.com>2020-04-24 12:33:43 +0200
commitb572510100165ba037ba43dbbb0f05e8da12c741 (patch)
tree417043581dccf5f926c048cb6c6df52b5ccfd3ce /include/linux/ieee80211.h
parentbdee75d2ac23a1db30d3c689665a584c20220f97 (diff)
ieee80211: share 802.11 unit conversion helpers
MHZ_TO_KHZ, and KHZ_TO_MHZ are useful to drivers and elsewhere so export these in the common ieee80211 header. Move the power helpers also because we might as well. Signed-off-by: Thomas Pedersen <thomas@adapt-ip.com> Link: https://lore.kernel.org/r/20200402011810.22947-2-thomas@adapt-ip.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'include/linux/ieee80211.h')
-rw-r--r--include/linux/ieee80211.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index 38f513ce7528..a561db435a4b 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -3330,6 +3330,16 @@ static inline int ieee80211_get_tdls_action(struct sk_buff *skb, u32 hdr_size)
#define TU_TO_JIFFIES(x) (usecs_to_jiffies((x) * 1024))
#define TU_TO_EXP_TIME(x) (jiffies + TU_TO_JIFFIES(x))
+/* convert frequencies */
+#define MHZ_TO_KHZ(freq) ((freq) * 1000)
+#define KHZ_TO_MHZ(freq) ((freq) / 1000)
+
+/* convert powers */
+#define DBI_TO_MBI(gain) ((gain) * 100)
+#define MBI_TO_DBI(gain) ((gain) / 100)
+#define DBM_TO_MBM(gain) ((gain) * 100)
+#define MBM_TO_DBM(gain) ((gain) / 100)
+
/**
* ieee80211_action_contains_tpc - checks if the frame contains TPC element
* @skb: the skb containing the frame, length will be checked