From c6bf20109a3fae92402cb76ad709ec5256bcd169 Mon Sep 17 00:00:00 2001
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Fri, 1 May 2020 12:36:13 +0200
Subject: [PATCH] mt76: mt7615: add WoW support
Git-commit: c6bf20109a3fae92402cb76ad709ec5256bcd169
Patch-mainline: v5.8-rc1
References: jsc#SLE-13430
Introduce WoW support to mt7615 driver.
Current supported trigger are:
- magic-packet
- disconnect
- user-pattern
Co-developed-by: Wan-Feng Jiang <Wan-Feng.Jiang@mediatek.com>
Signed-off-by: Wan-Feng Jiang <Wan-Feng.Jiang@mediatek.com>
Co-developed-by: Soul Huang <Soul.Huang@mediatek.com>
Signed-off-by: Soul Huang <Soul.Huang@mediatek.com>
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/main.c | 79 ++++++++
drivers/net/wireless/mediatek/mt76/mt7615/mcu.c | 220 +++++++++++++++++----
drivers/net/wireless/mediatek/mt76/mt7615/mcu.h | 62 ++++++
drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h | 4 +-
5 files changed, 322 insertions(+), 44 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt76.h b/drivers/net/wireless/mediatek/mt76/mt76.h
index 6106dc4fea44..f1c9116b6ab4 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76.h
+++ b/drivers/net/wireless/mediatek/mt76/mt76.h
@@ -287,6 +287,7 @@ enum {
MT76_READING_STATS,
MT76_STATE_POWER_OFF,
MT76_STATE_PS,
+ MT76_STATE_SUSPEND,
};
struct mt76_hw_cap {
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/main.c b/drivers/net/wireless/mediatek/mt76/mt7615/main.c
index 5e54c7ffae0b..b93a47509423 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/main.c
@@ -864,6 +864,80 @@ mt7615_stop_sched_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
return mt7615_mcu_sched_scan_enable(mphy->priv, vif, false);
}
+#ifdef CONFIG_PM
+static int mt7615_suspend(struct ieee80211_hw *hw,
+ struct cfg80211_wowlan *wowlan)
+{
+ struct mt7615_dev *dev = mt7615_hw_dev(hw);
+ struct mt7615_phy *phy = mt7615_hw_phy(hw);
+ bool ext_phy = phy != &dev->phy;
+ int err = 0;
+
+ mutex_lock(&dev->mt76.mutex);
+
+ clear_bit(MT76_STATE_RUNNING, &phy->mt76->state);
+ cancel_delayed_work_sync(&phy->scan_work);
+ cancel_delayed_work_sync(&phy->mac_work);
+
+ mt76_set(dev, MT_WF_RFCR(ext_phy), MT_WF_RFCR_DROP_OTHER_BEACON);
+
+ set_bit(MT76_STATE_SUSPEND, &phy->mt76->state);
+ ieee80211_iterate_active_interfaces(hw,
+ IEEE80211_IFACE_ITER_RESUME_ALL,
+ mt7615_mcu_set_suspend_iter, phy);
+
+ if (!mt7615_dev_running(dev))
+ err = mt7615_mcu_set_hif_suspend(dev, true);
+
+ mutex_unlock(&dev->mt76.mutex);
+
+ return err;
+}
+
+static int mt7615_resume(struct ieee80211_hw *hw)
+{
+ struct mt7615_dev *dev = mt7615_hw_dev(hw);
+ struct mt7615_phy *phy = mt7615_hw_phy(hw);
+ bool running, ext_phy = phy != &dev->phy;
+
+ mutex_lock(&dev->mt76.mutex);
+
+ running = mt7615_dev_running(dev);
+ set_bit(MT76_STATE_RUNNING, &phy->mt76->state);
+
+ if (!running) {
+ int err;
+
+ err = mt7615_mcu_set_hif_suspend(dev, false);
+ if (err < 0) {
+ mutex_unlock(&dev->mt76.mutex);
+ return err;
+ }
+ }
+
+ clear_bit(MT76_STATE_SUSPEND, &phy->mt76->state);
+ ieee80211_iterate_active_interfaces(hw,
+ IEEE80211_IFACE_ITER_RESUME_ALL,
+ mt7615_mcu_set_suspend_iter, phy);
+
+ ieee80211_queue_delayed_work(hw, &phy->mac_work,
+ MT7615_WATCHDOG_TIME);
+ mt76_clear(dev, MT_WF_RFCR(ext_phy), MT_WF_RFCR_DROP_OTHER_BEACON);
+
+ mutex_unlock(&dev->mt76.mutex);
+
+ return 0;
+}
+
+static void mt7615_set_wakeup(struct ieee80211_hw *hw, bool enabled)
+{
+ struct mt7615_dev *dev = mt7615_hw_dev(hw);
+ struct mt76_dev *mdev = &dev->mt76;
+
+ device_set_wakeup_enable(mdev->dev, enabled);
+}
+#endif /* CONFIG_PM */
+
const struct ieee80211_ops mt7615_ops = {
.tx = mt7615_tx,
.start = mt7615_start,
@@ -897,6 +971,11 @@ const struct ieee80211_ops mt7615_ops = {
.cancel_hw_scan = mt7615_cancel_hw_scan,
.sched_scan_start = mt7615_start_sched_scan,
.sched_scan_stop = mt7615_stop_sched_scan,
+#ifdef CONFIG_PM
+ .suspend = mt7615_suspend,
+ .resume = mt7615_resume,
+ .set_wakeup = mt7615_set_wakeup,
+#endif /* CONFIG_PM */
};
EXPORT_SYMBOL_GPL(mt7615_ops);
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c
index e7f6ab5ab2db..72e2e1cbab59 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c
@@ -195,7 +195,8 @@ mt7615_mcu_parse_response(struct mt7615_dev *dev, int cmd,
case MCU_UNI_CMD_DEV_INFO_UPDATE:
case MCU_UNI_CMD_BSS_INFO_UPDATE:
case MCU_UNI_CMD_STA_REC_UPDATE:
- case MCU_UNI_CMD_HIF_CTRL: {
+ case MCU_UNI_CMD_HIF_CTRL:
+ case MCU_UNI_CMD_SUSPEND: {
struct mt7615_mcu_uni_event *event;
skb_pull(skb, sizeof(*rxd));
@@ -1835,6 +1836,13 @@ mt7615_mcu_send_ram_firmware(struct mt7615_dev *dev,
return 0;
}
+static const struct wiphy_wowlan_support mt7615_wowlan_support = {
+ .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT,
+ .n_patterns = 1,
+ .pattern_min_len = 1,
+ .pattern_max_len = MT7615_WOW_PATTEN_MAX_LEN,
+};
+
static int mt7615_load_n9(struct mt7615_dev *dev, const char *name)
{
const struct mt7615_fw_trailer *hdr;
@@ -2157,6 +2165,11 @@ int __mt7663_load_firmware(struct mt7615_dev *dev)
return -EIO;
}
+#ifdef CONFIG_PM
+ if (mt7615_firmware_offload(dev))
+ dev->mt76.hw->wiphy->wowlan = &mt7615_wowlan_support;
+#endif /* CONFIG_PM */
+
dev_dbg(dev->mt76.dev, "Firmware init done\n");
return 0;
@@ -2653,47 +2666,6 @@ void m7615_mcu_set_ps_iter(void *priv, u8 *mac, struct ieee80211_vif *vif)
&req, sizeof(req), false);
}
-int mt7615_mcu_set_bss_pm(struct mt7615_dev *dev, struct ieee80211_vif *vif,
- bool enable)
-{
- struct mt7615_vif *mvif = (struct mt7615_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->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->idx,
- };
- int err;
-
- if (vif->type != NL80211_IFTYPE_STATION ||
- !mt7615_firmware_offload(dev))
- return -ENOTSUPP;
-
- 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);
-}
-
int mt7615_mcu_set_channel_domain(struct mt7615_phy *phy)
{
struct mt76_phy *mphy = phy->mt76;
@@ -3222,6 +3194,7 @@ int mt7615_mcu_apply_tx_dpd(struct mt7615_phy *phy)
return ret;
}
+#ifdef CONFIG_PM
int mt7615_mcu_set_hif_suspend(struct mt7615_dev *dev, bool suspend)
{
struct {
@@ -3254,3 +3227,166 @@ int mt7615_mcu_set_hif_suspend(struct mt7615_dev *dev, bool suspend)
&req, sizeof(req), true);
}
EXPORT_SYMBOL_GPL(mt7615_mcu_set_hif_suspend);
+
+static int
+mt7615_mcu_set_bss_pm(struct mt7615_dev *dev, struct ieee80211_vif *vif,
+ bool enable)
+{
+ struct mt7615_vif *mvif = (struct mt7615_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->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->idx,
+ };
+ int err;
+
+ if (vif->type != NL80211_IFTYPE_STATION ||
+ !mt7615_firmware_offload(dev))
+ return -ENOTSUPP;
+
+ 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);
+}
+
+static int
+mt7615_mcu_set_wow_ctrl(struct mt7615_dev *dev, struct ieee80211_vif *vif,
+ bool suspend, struct cfg80211_wowlan *wowlan)
+{
+ struct mt7615_vif *mvif = (struct mt7615_vif *)vif->drv_priv;
+ struct {
+ struct {
+ u8 bss_idx;
+ u8 pad[3];
+ } __packed hdr;
+ struct mt7615_wow_ctrl_tlv wow_ctrl_tlv;
+ } req = {
+ .hdr = {
+ .bss_idx = mvif->idx,
+ },
+ .wow_ctrl_tlv = {
+ .tag = cpu_to_le16(UNI_SUSPEND_WOW_CTRL),
+ .len = cpu_to_le16(sizeof(struct mt7615_wow_ctrl_tlv)),
+ .cmd = suspend ? 1 : 2,
+ },
+ };
+
+ if (wowlan->magic_pkt)
+ req.wow_ctrl_tlv.trigger |= BIT(0);
+ if (wowlan->disconnect)
+ req.wow_ctrl_tlv.trigger |= BIT(2);
+
+ if (mt76_is_mmio(&dev->mt76))
+ req.wow_ctrl_tlv.wakeup_hif = 2;
+ else if (mt76_is_usb(&dev->mt76))
+ req.wow_ctrl_tlv.wakeup_hif = 1;
+
+ return __mt76_mcu_send_msg(&dev->mt76, MCU_UNI_CMD_SUSPEND,
+ &req, sizeof(req), true);
+}
+
+static int
+mt7615_mcu_set_wow_pattern(struct mt7615_dev *dev,
+ struct ieee80211_vif *vif,
+ u8 index, bool enable,
+ struct cfg80211_pkt_pattern *pattern)
+{
+ struct mt7615_vif *mvif = (struct mt7615_vif *)vif->drv_priv;
+ struct mt7615_wow_pattern_tlv *ptlv;
+ struct sk_buff *skb;
+ struct req_hdr {
+ u8 bss_idx;
+ u8 pad[3];
+ } __packed hdr = {
+ .bss_idx = mvif->idx,
+ };
+
+ skb = mt76_mcu_msg_alloc(&dev->mt76, NULL,
+ sizeof(hdr) + sizeof(*ptlv));
+ if (!skb)
+ return -ENOMEM;
+
+ skb_put_data(skb, &hdr, sizeof(hdr));
+ ptlv = (struct mt7615_wow_pattern_tlv *)skb_put(skb, sizeof(*ptlv));
+ ptlv->tag = cpu_to_le16(UNI_SUSPEND_WOW_PATTERN);
+ ptlv->len = cpu_to_le16(sizeof(*ptlv));
+ ptlv->data_len = pattern->pattern_len;
+ ptlv->enable = enable;
+ ptlv->index = index;
+
+ memcpy(ptlv->pattern, pattern->pattern, pattern->pattern_len);
+ memcpy(ptlv->mask, pattern->mask, pattern->pattern_len / 8);
+
+ return __mt76_mcu_skb_send_msg(&dev->mt76, skb,
+ MCU_UNI_CMD_SUSPEND, true);
+}
+
+static int
+mt7615_mcu_set_suspend_mode(struct mt7615_dev *dev,
+ struct ieee80211_vif *vif,
+ bool enable, u8 mdtim, bool wow_suspend)
+{
+ struct mt7615_vif *mvif = (struct mt7615_vif *)vif->drv_priv;
+ struct {
+ struct {
+ u8 bss_idx;
+ u8 pad[3];
+ } __packed hdr;
+ struct mt7615_suspend_tlv suspend_tlv;
+ } req = {
+ .hdr = {
+ .bss_idx = mvif->idx,
+ },
+ .suspend_tlv = {
+ .tag = cpu_to_le16(UNI_SUSPEND_MODE_SETTING),
+ .len = cpu_to_le16(sizeof(struct mt7615_suspend_tlv)),
+ .enable = enable,
+ .mdtim = mdtim,
+ .wow_suspend = wow_suspend,
+ },
+ };
+
+ return __mt76_mcu_send_msg(&dev->mt76, MCU_UNI_CMD_SUSPEND,
+ &req, sizeof(req), true);
+}
+
+void mt7615_mcu_set_suspend_iter(void *priv, u8 *mac,
+ struct ieee80211_vif *vif)
+{
+ struct mt7615_phy *phy = priv;
+ bool suspend = test_bit(MT76_STATE_SUSPEND, &phy->mt76->state);
+ struct ieee80211_hw *hw = phy->mt76->hw;
+ struct cfg80211_wowlan *wowlan = hw->wiphy->wowlan_config;
+ int i;
+
+ mt7615_mcu_set_bss_pm(phy->dev, vif, suspend);
+
+ mt7615_mcu_set_suspend_mode(phy->dev, vif, suspend, 1, true);
+
+ for (i = 0; i < wowlan->n_patterns; i++)
+ mt7615_mcu_set_wow_pattern(phy->dev, vif, i, suspend,
+ &wowlan->patterns[i]);
+ mt7615_mcu_set_wow_ctrl(phy->dev, vif, suspend, wowlan);
+}
+#endif /* CONFIG_PM */
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.h b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.h
index 1579ad944479..960ff234c72d 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.h
@@ -280,6 +280,7 @@ enum {
MCU_UNI_CMD_DEV_INFO_UPDATE = MCU_UNI_PREFIX | 0x01,
MCU_UNI_CMD_BSS_INFO_UPDATE = MCU_UNI_PREFIX | 0x02,
MCU_UNI_CMD_STA_REC_UPDATE = MCU_UNI_PREFIX | 0x03,
+ MCU_UNI_CMD_SUSPEND = MCU_UNI_PREFIX | 0x05,
MCU_UNI_CMD_HIF_CTRL = MCU_UNI_PREFIX | 0x07,
};
@@ -415,6 +416,59 @@ struct mt7615_mcu_bss_event {
u8 pad;
} __packed;
+struct mt7615_wow_ctrl_tlv {
+ __le16 tag;
+ __le16 len;
+ u8 cmd; /* 0x1: PM_WOWLAN_REQ_START
+ * 0x2: PM_WOWLAN_REQ_STOP
+ * 0x3: PM_WOWLAN_PARAM_CLEAR
+ */
+ u8 trigger; /* 0: NONE
+ * BIT(0): NL80211_WOWLAN_TRIG_MAGIC_PKT
+ * BIT(1): NL80211_WOWLAN_TRIG_ANY
+ * BIT(2): NL80211_WOWLAN_TRIG_DISCONNECT
+ * BIT(3): NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE
+ * BIT(4): BEACON_LOST
+ * BIT(5): NL80211_WOWLAN_TRIG_NET_DETECT
+ */
+ u8 wakeup_hif; /* 0x0: HIF_SDIO
+ * 0x1: HIF_USB
+ * 0x2: HIF_PCIE
+ * 0x3: HIF_GPIO
+ */
+ u8 pad;
+ u8 rsv[4];
+} __packed;
+
+#define MT7615_WOW_MASK_MAX_LEN 16
+#define MT7615_WOW_PATTEN_MAX_LEN 128
+struct mt7615_wow_pattern_tlv {
+ __le16 tag;
+ __le16 len;
+ u8 index; /* pattern index */
+ u8 enable; /* 0: disable
+ * 1: enable
+ */
+ u8 data_len; /* pattern length */
+ u8 pad;
+ u8 mask[MT7615_WOW_MASK_MAX_LEN];
+ u8 pattern[MT7615_WOW_PATTEN_MAX_LEN];
+ u8 rsv[4];
+} __packed;
+
+struct mt7615_suspend_tlv {
+ __le16 tag;
+ __le16 len;
+ u8 enable; /* 0: suspend mode disabled
+ * 1: suspend mode enabled
+ */
+ u8 mdtim; /* LP parameter */
+ u8 wow_suspend; /* 0: update by origin policy
+ * 1: update by wow dtim
+ */
+ u8 pad[5];
+} __packed;
+
/* offload mcu commands */
enum {
MCU_CMD_START_HW_SCAN = MCU_CE_PREFIX | 0x03,
@@ -439,6 +493,14 @@ enum {
UNI_BSS_INFO_BCN_CONTENT = 7,
};
+enum {
+ UNI_SUSPEND_MODE_SETTING,
+ UNI_SUSPEND_WOW_CTRL,
+ UNI_SUSPEND_WOW_GPIO_PARAM,
+ UNI_SUSPEND_WOW_WAKEUP_PORT,
+ UNI_SUSPEND_WOW_PATTERN,
+};
+
enum {
PATCH_SEM_RELEASE = 0x0,
PATCH_SEM_GET = 0x1
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h b/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h
index 6a26555dcce6..3e6bc3ce914a 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h
@@ -474,8 +474,6 @@ int mt7615_mac_wtbl_update_key(struct mt7615_dev *dev,
enum set_key_cmd cmd);
void mt7615_mac_reset_work(struct work_struct *work);
-int mt7615_mcu_set_bss_pm(struct mt7615_dev *dev, struct ieee80211_vif *vif,
- bool enable);
int mt7615_mcu_wait_response(struct mt7615_dev *dev, int cmd, int seq);
int mt7615_mcu_msg_send(struct mt76_dev *mdev, int cmd, const void *data,
int len, bool wait_resp);
@@ -532,6 +530,8 @@ int mt7615_init_debugfs(struct mt7615_dev *dev);
int mt7615_mcu_wait_response(struct mt7615_dev *dev, int cmd, int seq);
int mt7615_mcu_set_hif_suspend(struct mt7615_dev *dev, bool suspend);
+void mt7615_mcu_set_suspend_iter(void *priv, u8 *mac,
+ struct ieee80211_vif *vif);
int __mt7663_load_firmware(struct mt7615_dev *dev);
--
2.16.4