From 7f8ebafebce3b0eae48e328ff75475d7181f83ac Mon Sep 17 00:00:00 2001
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Fri, 17 Apr 2020 13:10:06 +0200
Subject: [PATCH] mt76: mt7663: introduce 802.11 PS support in sta mode
Git-commit: 7f8ebafebce3b0eae48e328ff75475d7181f83ac
Patch-mainline: v5.8-rc1
References: jsc#SLE-13430
Enable 802.11 power-save support available in mt7663 firmware
Co-developed-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/net/wireless/mediatek/mt76/mt76.h | 1 +
drivers/net/wireless/mediatek/mt76/mt7615/init.c | 4 ++++
drivers/net/wireless/mediatek/mt76/mt7615/mac.c | 7 +++++--
drivers/net/wireless/mediatek/mt76/mt7615/main.c | 23 ++++++++++++++++++++++
drivers/net/wireless/mediatek/mt76/mt7615/mcu.c | 21 ++++++++++++++++++++
drivers/net/wireless/mediatek/mt76/mt7615/mcu.h | 1 +
drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h | 4 ++++
.../net/wireless/mediatek/mt76/mt7615/pci_init.c | 8 ++++++--
.../net/wireless/mediatek/mt76/mt7615/usb_init.c | 3 +++
9 files changed, 68 insertions(+), 4 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt76.h b/drivers/net/wireless/mediatek/mt76/mt76.h
index 577465c01827..6106dc4fea44 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76.h
+++ b/drivers/net/wireless/mediatek/mt76/mt76.h
@@ -286,6 +286,7 @@ enum {
MT76_REMOVED,
MT76_READING_STATS,
MT76_STATE_POWER_OFF,
+ MT76_STATE_PS,
};
struct mt76_hw_cap {
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/init.c b/drivers/net/wireless/mediatek/mt76/mt7615/init.c
index 9d9f73b4561e..6fc3f5aa94c0 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/init.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/init.c
@@ -323,6 +323,8 @@ int mt7615_register_ext_phy(struct mt7615_dev *dev)
INIT_DELAYED_WORK(&phy->scan_work, mt7615_scan_work);
skb_queue_head_init(&phy->scan_event_list);
+ INIT_WORK(&dev->phy.ps_work, mt7615_ps_work);
+
mt7615_cap_dbdc_enable(dev);
mphy = mt76_alloc_phy(&dev->mt76, sizeof(*phy), &mt7615_ops);
if (!mphy)
@@ -386,7 +388,9 @@ void mt7615_init_device(struct mt7615_dev *dev)
INIT_LIST_HEAD(&dev->sta_poll_list);
spin_lock_init(&dev->sta_poll_lock);
init_waitqueue_head(&dev->reset_wait);
+
INIT_WORK(&dev->reset_work, mt7615_mac_reset_work);
+ INIT_WORK(&dev->phy.ps_work, mt7615_ps_work);
mt7615_init_wiphy(hw);
dev->mphy.sband_2g.sband.ht_cap.cap |= IEEE80211_HT_CAP_LDPC_CODING;
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
index b6e92bb3b128..3dab07d3eb1d 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
@@ -605,8 +605,11 @@ int mt7615_mac_write_txwi(struct mt7615_dev *dev, __le32 *txwi,
}
if (!ieee80211_is_beacon(fc)) {
- val = MT_TXD5_TX_STATUS_HOST | MT_TXD5_SW_POWER_MGMT |
- FIELD_PREP(MT_TXD5_PID, pid);
+ struct ieee80211_hw *hw = mt76_hw(dev);
+
+ val = MT_TXD5_TX_STATUS_HOST | FIELD_PREP(MT_TXD5_PID, pid);
+ if (!ieee80211_hw_check(hw, SUPPORTS_PS))
+ val |= MT_TXD5_SW_POWER_MGMT;
txwi[5] = cpu_to_le32(val);
} else {
txwi[5] = 0;
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/main.c b/drivers/net/wireless/mediatek/mt76/mt7615/main.c
index f7fc2185da3b..8f8ad632d6ba 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/main.c
@@ -71,6 +71,7 @@ static void mt7615_stop(struct ieee80211_hw *hw)
struct mt7615_phy *phy = mt7615_hw_phy(hw);
cancel_delayed_work_sync(&phy->mac_work);
+ cancel_work_sync(&phy->ps_work);
mutex_lock(&dev->mt76.mutex);
@@ -362,6 +363,20 @@ static int mt7615_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
return mt7615_mac_wtbl_set_key(dev, wcid, key, cmd);
}
+void mt7615_ps_work(struct work_struct *work)
+{
+ struct mt7615_phy *phy;
+
+ phy = (struct mt7615_phy *)container_of(work, struct mt7615_phy,
+ ps_work);
+
+ mutex_lock(&phy->dev->mt76.mutex);
+ ieee80211_iterate_active_interfaces(phy->mt76->hw,
+ IEEE80211_IFACE_ITER_RESUME_ALL,
+ m7615_mcu_set_ps_iter, phy);
+ mutex_unlock(&phy->dev->mt76.mutex);
+}
+
static int mt7615_config(struct ieee80211_hw *hw, u32 changed)
{
struct mt7615_dev *dev = mt7615_hw_dev(hw);
@@ -387,6 +402,14 @@ static int mt7615_config(struct ieee80211_hw *hw, u32 changed)
mt76_wr(dev, MT_WF_RFCR(band), phy->rxfilter);
}
+ if (changed & IEEE80211_CONF_CHANGE_PS) {
+ if (hw->conf.flags & IEEE80211_CONF_PS)
+ set_bit(MT76_STATE_PS, &phy->mt76->state);
+ else
+ clear_bit(MT76_STATE_PS, &phy->mt76->state);
+ ieee80211_queue_work(hw, &phy->ps_work);
+ }
+
mutex_unlock(&dev->mt76.mutex);
return ret;
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c
index 530d6302b53a..74cbb975be75 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c
@@ -2586,6 +2586,27 @@ int mt7615_mcu_set_sku_en(struct mt7615_phy *phy, bool enable)
sizeof(req), true);
}
+void m7615_mcu_set_ps_iter(void *priv, u8 *mac, struct ieee80211_vif *vif)
+{
+ struct mt7615_vif *mvif = (struct mt7615_vif *)vif->drv_priv;
+ struct mt7615_phy *phy = priv;
+ struct mt76_phy *mphy = phy->mt76;
+ struct {
+ u8 bss_idx;
+ u8 ps_state; /* 0: device awake
+ * 1: static power save
+ * 2: dynamic power saving
+ */
+ } req = {
+ .bss_idx = mvif->idx,
+ .ps_state = test_bit(MT76_STATE_PS, &mphy->state) ? 2 : 0,
+ };
+
+ if (vif->type == NL80211_IFTYPE_STATION)
+ __mt76_mcu_send_msg(&phy->dev->mt76, MCU_CMD_SET_PS_PROFILE,
+ &req, sizeof(req), false);
+}
+
int mt7615_mcu_set_channel_domain(struct mt7615_phy *phy)
{
struct mt76_phy *mphy = phy->mt76;
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.h b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.h
index dff3f3632faf..5440f24a834a 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.h
@@ -411,6 +411,7 @@ struct mt7615_mcu_bss_event {
/* offload mcu commands */
enum {
MCU_CMD_START_HW_SCAN = MCU_CE_PREFIX | 0x03,
+ MCU_CMD_SET_PS_PROFILE = MCU_CE_PREFIX | 0x05,
MCU_CMD_SET_CHAN_DOMAIN = MCU_CE_PREFIX | 0x0f,
MCU_CMD_CANCEL_HW_SCAN = MCU_CE_PREFIX | 0x1b,
MCU_CMD_SCHED_SCAN_ENABLE = MCU_CE_PREFIX | 0x61,
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h b/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h
index 2bc77a0478a9..c9533282e7e3 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h
@@ -197,6 +197,8 @@ struct mt7615_phy {
struct sk_buff_head scan_event_list;
struct delayed_work scan_work;
+
+ struct work_struct ps_work;
};
#define mt7615_mcu_add_tx_ba(dev, ...) (dev)->mcu_ops->add_tx_ba((dev), __VA_ARGS__)
@@ -423,6 +425,7 @@ static inline bool mt7615_firmware_offload(struct mt7615_dev *dev)
}
void mt7615_scan_work(struct work_struct *work);
+void mt7615_ps_work(struct work_struct *work);
void mt7615_init_txpower(struct mt7615_dev *dev,
struct ieee80211_supported_band *sband);
void mt7615_phy_init(struct mt7615_dev *dev);
@@ -508,6 +511,7 @@ int mt7615_mcu_set_radar_th(struct mt7615_dev *dev, int index,
int mt7615_mcu_set_sku_en(struct mt7615_phy *phy, bool enable);
int mt7615_mcu_apply_rx_dcoc(struct mt7615_phy *phy);
int mt7615_mcu_apply_tx_dpd(struct mt7615_phy *phy);
+void m7615_mcu_set_ps_iter(void *priv, u8 *mac, struct ieee80211_vif *vif);
int mt7615_dfs_init_radar_detector(struct mt7615_phy *phy);
int mt7615_init_debugfs(struct mt7615_dev *dev);
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/pci_init.c b/drivers/net/wireless/mediatek/mt76/mt7615/pci_init.c
index 3a8dd334b53e..cd3ccafa7d11 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/pci_init.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/pci_init.c
@@ -16,6 +16,7 @@ static void mt7615_init_work(struct work_struct *work)
{
struct mt7615_dev *dev = container_of(work, struct mt7615_dev,
mcu_work);
+ struct ieee80211_hw *hw = mt76_hw(dev);
if (mt7615_mcu_init(dev))
return;
@@ -25,8 +26,11 @@ static void mt7615_init_work(struct work_struct *work)
mt7615_phy_init(dev);
mt7615_mcu_del_wtbl_all(dev);
- if (!mt7615_firmware_offload(dev)) {
- struct wiphy *wiphy = mt76_hw(dev)->wiphy;
+ if (mt7615_firmware_offload(dev)) {
+ ieee80211_hw_set(hw, SUPPORTS_PS);
+ ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
+ } else {
+ struct wiphy *wiphy = hw->wiphy;
dev->ops->hw_scan = NULL;
dev->ops->cancel_hw_scan = NULL;
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/usb_init.c b/drivers/net/wireless/mediatek/mt76/mt7615/usb_init.c
index a05f0eda21dd..39642065531f 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/usb_init.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/usb_init.c
@@ -119,6 +119,9 @@ int mt7663u_register_device(struct mt7615_dev *dev)
if (err)
return err;
+ ieee80211_hw_set(hw, SUPPORTS_PS);
+ ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
+
hw->extra_tx_headroom += MT_USB_HDR_SIZE + MT_USB_TXD_SIZE;
/* check hw sg support in order to enable AMSDU */
hw->max_tx_fragments = dev->mt76.usb.sg_en ? MT_HW_TXP_MAX_BUF_NUM : 1;
--
2.16.4