From 699c7730cf2303728673351ff8dd0100552cde8e Mon Sep 17 00:00:00 2001
From: Tzu-En Huang <tehuang@realtek.com>
Date: Wed, 2 Oct 2019 14:35:22 +0800
Subject: rtw88: report tx rate to mac80211 stack
Whenever the firmware increases/decreases the bit rate used
to transmit to a peer, it sends an RA report through C2H to
driver. Driver can then record the bit rate in the peer's
struct rtw_sta_info, and report to mac80211 when it asks us
for the statistics of the sta by ieee80211_ops::sta_statistics
Signed-off-by: Tzu-En Huang <tehuang@realtek.com>
Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
drivers/net/wireless/realtek/rtw88/util.c | 27 +++++++++++++++++++++++++++
1 file changed, 27 insertions(+)
(limited to 'drivers/net/wireless/realtek/rtw88/util.c')
diff --git a/drivers/net/wireless/realtek/rtw88/util.c b/drivers/net/wireless/realtek/rtw88/util.c
index 212070c2baa8..10f1117c0cfb 100644
--- a/drivers/net/wireless/realtek/rtw88/util.c
+++ b/drivers/net/wireless/realtek/rtw88/util.c
@@ -70,3 +70,30 @@ void rtw_restore_reg(struct rtw_dev *rtwdev,
}
}
}
+
+void rtw_desc_to_mcsrate(u16 rate, u8 *mcs, u8 *nss)
+{
+ if (rate <= DESC_RATE54M)
+ return;
+
+ if (rate >= DESC_RATEVHT1SS_MCS0 &&
+ rate <= DESC_RATEVHT1SS_MCS9) {
+ *nss = 1;
+ *mcs = rate - DESC_RATEVHT1SS_MCS0;
+ } else if (rate >= DESC_RATEVHT2SS_MCS0 &&
+ rate <= DESC_RATEVHT2SS_MCS9) {
+ *nss = 2;
+ *mcs = rate - DESC_RATEVHT2SS_MCS0;
+ } else if (rate >= DESC_RATEVHT3SS_MCS0 &&
+ rate <= DESC_RATEVHT3SS_MCS9) {
+ *nss = 3;
+ *mcs = rate - DESC_RATEVHT3SS_MCS0;
+ } else if (rate >= DESC_RATEVHT4SS_MCS0 &&
+ rate <= DESC_RATEVHT4SS_MCS9) {
+ *nss = 4;
+ *mcs = rate - DESC_RATEVHT4SS_MCS0;
+ } else if (rate >= DESC_RATEMCS0 &&
+ rate <= DESC_RATEMCS15) {
+ *mcs = rate - DESC_RATEMCS0;
+ }
+}
--
cgit