2021-01-28 00:20:01

by Sean Wang

[permalink] [raw]
Subject: [PATCH -next v8 10/20] mt76: mt7921: introduce support for hardware beacon filter

From: Sean Wang <[email protected]>

Introduce support for hw beacon filter available in the mt7921 firmware.

According to mt7921e firmware, enabling hardware filter would rely on
mt7921_mcu_uni_bss_bcnft and disabling hardware filter still rely on legacy
mt7921_mcu_set_bss_pm.

Co-developed-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Lorenzo Bianconi <[email protected]>
Co-developed-by: Soul Huang <[email protected]>
Signed-off-by: Soul Huang <[email protected]>
Signed-off-by: Sean Wang <[email protected]>
---
.../net/wireless/mediatek/mt76/mt7921/mcu.c | 75 +++++++++++++++++++
.../net/wireless/mediatek/mt76/mt7921/mcu.h | 1 +
.../wireless/mediatek/mt76/mt7921/mt7921.h | 4 +
3 files changed, 80 insertions(+)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
index 913b56065de6..768456c7aa7f 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
@@ -2500,3 +2500,78 @@ int mt7921_mcu_uni_bss_ps(struct mt7921_dev *dev, struct ieee80211_vif *vif)
return mt76_mcu_send_msg(&dev->mt76, MCU_UNI_CMD_BSS_INFO_UPDATE,
&ps_req, sizeof(ps_req), true);
}
+
+int mt7921_mcu_uni_bss_bcnft(struct mt7921_dev *dev, struct ieee80211_vif *vif,
+ bool enable)
+{
+ struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
+ struct {
+ struct {
+ u8 bss_idx;
+ u8 pad[3];
+ } __packed hdr;
+ struct bcnft_tlv {
+ __le16 tag;
+ __le16 len;
+ __le16 bcn_interval;
+ u8 dtim_period;
+ u8 pad;
+ } __packed bcnft;
+ } __packed bcnft_req = {
+ .hdr = {
+ .bss_idx = mvif->mt76.idx,
+ },
+ .bcnft = {
+ .tag = cpu_to_le16(UNI_BSS_INFO_BCNFT),
+ .len = cpu_to_le16(sizeof(struct bcnft_tlv)),
+ .bcn_interval = cpu_to_le16(vif->bss_conf.beacon_int),
+ .dtim_period = vif->bss_conf.dtim_period,
+ },
+ };
+
+ if (vif->type != NL80211_IFTYPE_STATION)
+ return 0;
+
+ return mt76_mcu_send_msg(&dev->mt76, MCU_UNI_CMD_BSS_INFO_UPDATE,
+ &bcnft_req, sizeof(bcnft_req), true);
+}
+
+int mt7921_mcu_set_bss_pm(struct mt7921_dev *dev, struct ieee80211_vif *vif,
+ bool enable)
+{
+ struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
+ struct {
+ u8 bss_idx;
+ u8 dtim_period;
+ __le16 aid;
+ __le16 bcn_interval;
+ __le16 atim_window;
+ u8 uapsd;
+ u8 bmc_delivered_ac;
+ u8 bmc_triggered_ac;
+ u8 pad;
+ } req = {
+ .bss_idx = mvif->mt76.idx,
+ .aid = cpu_to_le16(vif->bss_conf.aid),
+ .dtim_period = vif->bss_conf.dtim_period,
+ .bcn_interval = cpu_to_le16(vif->bss_conf.beacon_int),
+ };
+ struct {
+ u8 bss_idx;
+ u8 pad[3];
+ } req_hdr = {
+ .bss_idx = mvif->mt76.idx,
+ };
+ int err;
+
+ if (vif->type != NL80211_IFTYPE_STATION)
+ return 0;
+
+ err = mt76_mcu_send_msg(&dev->mt76, MCU_CMD_SET_BSS_ABORT, &req_hdr,
+ sizeof(req_hdr), false);
+ if (err < 0 || !enable)
+ return err;
+
+ return mt76_mcu_send_msg(&dev->mt76, MCU_CMD_SET_BSS_CONNECTED, &req,
+ sizeof(req), false);
+}
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.h b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.h
index 2103e1d3ac94..de3a9aabec04 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.h
@@ -211,6 +211,7 @@ enum {
UNI_BSS_INFO_QBSS = 15,
UNI_BSS_INFO_UAPSD = 19,
UNI_BSS_INFO_PS = 21,
+ UNI_BSS_INFO_BCNFT = 22,
};

enum {
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h b/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h
index f4435cc1712f..161e328fc4ee 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h
@@ -356,4 +356,8 @@ int mt7921_mcu_cancel_hw_scan(struct mt7921_phy *phy,
struct ieee80211_vif *vif);
u32 mt7921_get_wtbl_info(struct mt7921_dev *dev, u16 wlan_idx);
int mt7921_mcu_uni_bss_ps(struct mt7921_dev *dev, struct ieee80211_vif *vif);
+int mt7921_mcu_uni_bss_bcnft(struct mt7921_dev *dev, struct ieee80211_vif *vif,
+ bool enable);
+int mt7921_mcu_set_bss_pm(struct mt7921_dev *dev, struct ieee80211_vif *vif,
+ bool enable);
#endif
--
2.25.1