diff options
4 files changed, 90 insertions, 0 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_mac.c b/drivers/net/wireless/mediatek/mt76/mt76x02_mac.c index d3f1d57fb758..ddc1c3146feb 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x02_mac.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x02_mac.c @@ -731,6 +731,89 @@ void mt76x02_mac_set_rts_thresh(struct mt76x02_dev *dev, u32 val) MT_PROT_CFG_CTRL | MT_PROT_CFG_RTS_THRESH, data); } +void mt76x02_mac_set_tx_protection(struct mt76x02_dev *dev, bool legacy_prot, + int ht_mode) +{ + int mode = ht_mode & IEEE80211_HT_OP_MODE_PROTECTION; + bool non_gf = !!(ht_mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT); + u32 prot[6]; + u32 vht_prot[3]; + int i; + u16 rts_thr; + + for (i = 0; i < ARRAY_SIZE(prot); i++) { + prot[i] = mt76_rr(dev, MT_CCK_PROT_CFG + i * 4); + prot[i] &= ~MT_PROT_CFG_CTRL; + if (i >= 2) + prot[i] &= ~MT_PROT_CFG_RATE; + } + + for (i = 0; i < ARRAY_SIZE(vht_prot); i++) { + vht_prot[i] = mt76_rr(dev, MT_TX_PROT_CFG6 + i * 4); + vht_prot[i] &= ~(MT_PROT_CFG_CTRL | MT_PROT_CFG_RATE); + } + + rts_thr = mt76_get_field(dev, MT_TX_RTS_CFG, MT_TX_RTS_CFG_THRESH); + + if (rts_thr != 0xffff) + prot[0] |= MT_PROT_CTRL_RTS_CTS; + + if (legacy_prot) { + prot[1] |= MT_PROT_CTRL_CTS2SELF; + + prot[2] |= MT_PROT_RATE_CCK_11; + prot[3] |= MT_PROT_RATE_CCK_11; + prot[4] |= MT_PROT_RATE_CCK_11; + prot[5] |= MT_PROT_RATE_CCK_11; + + vht_prot[0] |= MT_PROT_RATE_CCK_11; + vht_prot[1] |= MT_PROT_RATE_CCK_11; + vht_prot[2] |= MT_PROT_RATE_CCK_11; + } else { + if (rts_thr != 0xffff) + prot[1] |= MT_PROT_CTRL_RTS_CTS; + + prot[2] |= MT_PROT_RATE_OFDM_24; + prot[3] |= MT_PROT_RATE_DUP_OFDM_24; + prot[4] |= MT_PROT_RATE_OFDM_24; + prot[5] |= MT_PROT_RATE_DUP_OFDM_24; + + vht_prot[0] |= MT_PROT_RATE_OFDM_24; + vht_prot[1] |= MT_PROT_RATE_DUP_OFDM_24; + vht_prot[2] |= MT_PROT_RATE_SGI_OFDM_24; + } + + switch (mode) { + case IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER: + case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED: + prot[2] |= MT_PROT_CTRL_RTS_CTS; + prot[3] |= MT_PROT_CTRL_RTS_CTS; + prot[4] |= MT_PROT_CTRL_RTS_CTS; + prot[5] |= MT_PROT_CTRL_RTS_CTS; + vht_prot[0] |= MT_PROT_CTRL_RTS_CTS; + vht_prot[1] |= MT_PROT_CTRL_RTS_CTS; + vht_prot[2] |= MT_PROT_CTRL_RTS_CTS; + break; + case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ: + prot[3] |= MT_PROT_CTRL_RTS_CTS; + prot[5] |= MT_PROT_CTRL_RTS_CTS; + vht_prot[1] |= MT_PROT_CTRL_RTS_CTS; + vht_prot[2] |= MT_PROT_CTRL_RTS_CTS; + break; + } + + if (non_gf) { + prot[4] |= MT_PROT_CTRL_RTS_CTS; + prot[5] |= MT_PROT_CTRL_RTS_CTS; + } + + for (i = 0; i < ARRAY_SIZE(prot); i++) + mt76_wr(dev, MT_CCK_PROT_CFG + i * 4, prot[i]); + + for (i = 0; i < ARRAY_SIZE(vht_prot); i++) + mt76_wr(dev, MT_TX_PROT_CFG6 + i * 4, vht_prot[i]); +} + void mt76x02_update_channel(struct mt76_dev *mdev) { struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76); diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_mac.h b/drivers/net/wireless/mediatek/mt76/mt76x02_mac.h index d1a8ed171537..91c76a050f7e 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x02_mac.h +++ b/drivers/net/wireless/mediatek/mt76/mt76x02_mac.h @@ -194,6 +194,8 @@ void mt76x02_send_tx_status(struct mt76x02_dev *dev, struct mt76x02_tx_status *stat, u8 *update); int mt76x02_mac_process_rx(struct mt76x02_dev *dev, struct sk_buff *skb, void *rxi); +void mt76x02_mac_set_tx_protection(struct mt76x02_dev *dev, bool legacy_prot, + int ht_mode); void mt76x02_mac_set_rts_thresh(struct mt76x02_dev *dev, u32 val); void mt76x02_mac_setaddr(struct mt76x02_dev *dev, u8 *addr); void mt76x02_mac_write_txwi(struct mt76x02_dev *dev, struct mt76x02_txwi *txwi, diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_regs.h b/drivers/net/wireless/mediatek/mt76/mt76x02_regs.h index d1ac847adce5..20ad07638699 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x02_regs.h +++ b/drivers/net/wireless/mediatek/mt76/mt76x02_regs.h @@ -443,6 +443,7 @@ #define MT_PROT_RATE_OFDM_6 0x2000 #define MT_PROT_RATE_OFDM_24 0x2004 #define MT_PROT_RATE_DUP_OFDM_24 0x2084 +#define MT_PROT_RATE_SGI_OFDM_24 0x2104 #define MT_PROT_TXOP_ALLOW_ALL GENMASK(25, 20) #define MT_PROT_TXOP_ALLOW_BW20 (MT_PROT_TXOP_ALLOW_ALL & \ ~MT_PROT_TXOP_ALLOW_MM40 & \ diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_util.c b/drivers/net/wireless/mediatek/mt76/mt76x02_util.c index 364e7b2ebf99..aac64d0969b8 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x02_util.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x02_util.c @@ -661,6 +661,10 @@ void mt76x02_bss_info_changed(struct ieee80211_hw *hw, tasklet_enable(&dev->pre_tbtt_tasklet); } + if (changed & BSS_CHANGED_HT || changed & BSS_CHANGED_ERP_CTS_PROT) + mt76x02_mac_set_tx_protection(dev, info->use_cts_prot, + info->ht_operation_mode); + if (changed & BSS_CHANGED_BEACON_INT) { mt76_rmw_field(dev, MT_BEACON_TIME_CFG, MT_BEACON_TIME_CFG_INTVAL, |