diff options
| author | Felix Fietkau <nbd@nbd.name> | 2019-02-25 17:25:38 +0100 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2019-02-26 10:28:19 +0100 |
| commit | 4606a26c0c51d23401a00d787aa61e508f3e14a7 (patch) | |
| tree | aae009235a79a5032217e4104922aeb76c4bcd17 /drivers/net/wireless/mediatek/mt76/mt76x2 | |
| parent | 72e5d479b8de4a3b3cbc01f9fcc4a6936f82414f (diff) | |
mt76: mt76x02: fix ED/CCA enabling/disabling
ED/CCA needs to be disable before stopping the MAC to avoid hangs from tx
being blocked. It must only be enabled again after the MAC has been started
again.
In many places this wasn't done properly, so fix this by always clearing
the relevant ED/CCA bits in mt76x2_mac_stop and set it up again after
channel change or calibration is done
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/mt76x2')
5 files changed, 9 insertions, 11 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2/mac.c b/drivers/net/wireless/mediatek/mt76/mt76x2/mac.c index e25905c91ee2..e99d4c9bd428 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x2/mac.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x2/mac.c @@ -23,6 +23,9 @@ void mt76x2_mac_stop(struct mt76x02_dev *dev, bool force) u32 rts_cfg; int i; + mt76_clear(dev, MT_TXOP_CTRL_CFG, MT_TXOP_ED_CCA_EN); + mt76_clear(dev, MT_TXOP_HLDR_ET, MT_TXOP_HLDR_TX40M_BLK_EN); + mt76_wr(dev, MT_MAC_SYS_CTRL, 0); rts_cfg = mt76_rr(dev, MT_TX_RTS_CFG); diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2/pci_phy.c b/drivers/net/wireless/mediatek/mt76/mt76x2/pci_phy.c index 97ec575699d0..cc1aebcb0696 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x2/pci_phy.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x2/pci_phy.c @@ -74,6 +74,7 @@ mt76x2_phy_channel_calibrate(struct mt76x02_dev *dev, bool mac_stopped) mt76x2_mac_resume(dev); mt76x2_apply_gain_adj(dev); + mt76x02_edcca_init(dev, true); dev->cal.channel_cal_done = true; } @@ -240,10 +241,8 @@ int mt76x2_phy_set_channel(struct mt76x02_dev *dev, mt76_wr(dev, MT_BBP(AGC, 2), 0x00007070); mt76_wr(dev, MT_TXOP_CTRL_CFG, 0x04101B3F); - if (scan) { - mt76x02_edcca_init(dev, false); + if (scan) return 0; - } mt76x2_phy_channel_calibrate(dev, true); mt76x02_init_agc_gain(dev); @@ -256,8 +255,6 @@ int mt76x2_phy_set_channel(struct mt76x02_dev *dev, 0x38); } - mt76x02_edcca_init(dev, true); - ieee80211_queue_delayed_work(mt76_hw(dev), &dev->cal_work, MT_CALIBRATE_INTERVAL); diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2/usb_mac.c b/drivers/net/wireless/mediatek/mt76/mt76x2/usb_mac.c index db2194a92e67..361eb4fb979d 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x2/usb_mac.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x2/usb_mac.c @@ -143,8 +143,8 @@ int mt76x2u_mac_stop(struct mt76x02_dev *dev) rts_cfg = mt76_rr(dev, MT_TX_RTS_CFG); mt76_wr(dev, MT_TX_RTS_CFG, rts_cfg & ~MT_TX_RTS_CFG_RETRY_LIMIT); - mt76_clear(dev, MT_TXOP_CTRL_CFG, BIT(20)); - mt76_clear(dev, MT_TXOP_HLDR_ET, BIT(1)); + mt76_clear(dev, MT_TXOP_CTRL_CFG, MT_TXOP_ED_CCA_EN); + mt76_clear(dev, MT_TXOP_HLDR_ET, MT_TXOP_HLDR_TX40M_BLK_EN); /* wait tx dma to stop */ for (i = 0; i < 2000; i++) { @@ -217,6 +217,4 @@ void mt76x2u_mac_resume(struct mt76x02_dev *dev) mt76_wr(dev, MT_MAC_SYS_CTRL, MT_MAC_SYS_CTRL_ENABLE_TX | MT_MAC_SYS_CTRL_ENABLE_RX); - mt76_set(dev, MT_TXOP_CTRL_CFG, BIT(20)); - mt76_set(dev, MT_TXOP_HLDR_ET, BIT(1)); } diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2/usb_main.c b/drivers/net/wireless/mediatek/mt76/mt76x2/usb_main.c index 10633b8de8e8..9b438adfc56c 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x2/usb_main.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x2/usb_main.c @@ -57,13 +57,12 @@ mt76x2u_set_channel(struct mt76x02_dev *dev, mt76_set_channel(&dev->mt76); - mt76_clear(dev, MT_TXOP_CTRL_CFG, BIT(20)); - mt76_clear(dev, MT_TXOP_HLDR_ET, BIT(1)); mt76x2_mac_stop(dev, false); err = mt76x2u_phy_set_channel(dev, chandef); mt76x2u_mac_resume(dev); + mt76x02_edcca_init(dev, true); clear_bit(MT76_RESET, &dev->mt76.state); mt76_txq_schedule_all(&dev->mt76); diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2/usb_phy.c b/drivers/net/wireless/mediatek/mt76/mt76x2/usb_phy.c index 11d414d86c68..c8b4a17302da 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x2/usb_phy.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x2/usb_phy.c @@ -45,6 +45,7 @@ mt76x2u_phy_channel_calibrate(struct mt76x02_dev *dev, bool mac_stopped) if (!mac_stopped) mt76x2u_mac_resume(dev); mt76x2_apply_gain_adj(dev); + mt76x02_edcca_init(dev, true); dev->cal.channel_cal_done = true; } |