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From: Felix Fietkau <nbd@nbd.name>
To: linux-wireless@vger.kernel.org
Subject: [PATCH 28/29] mt76: mt7615: add support for registering a second wiphy via debugfs
Date: Sat, 30 Nov 2019 16:30:44 +0100	[thread overview]
Message-ID: <20191130153045.28105-28-nbd@nbd.name> (raw)
In-Reply-To: <20191130153045.28105-1-nbd@nbd.name>

This is only used for testing for now. In the future it will be possible to
enable the second PHY through an proper API via device tree

Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
 .../wireless/mediatek/mt76/mt7615/debugfs.c   |  27 ++++
 .../wireless/mediatek/mt76/mt7615/eeprom.c    |   5 +-
 .../net/wireless/mediatek/mt76/mt7615/init.c  | 118 +++++++++++++++---
 .../wireless/mediatek/mt76/mt7615/mt7615.h    |   4 +
 4 files changed, 133 insertions(+), 21 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/debugfs.c b/drivers/net/wireless/mediatek/mt76/mt7615/debugfs.c
index 05a0172b32ce..f75b3f66cdb4 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/debugfs.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/debugfs.c
@@ -36,6 +36,32 @@ mt7615_scs_get(void *data, u64 *val)
 DEFINE_DEBUGFS_ATTRIBUTE(fops_scs, mt7615_scs_get,
 			 mt7615_scs_set, "%lld\n");
 
+static int
+mt7615_dbdc_set(void *data, u64 val)
+{
+	struct mt7615_dev *dev = data;
+
+	if (val)
+		mt7615_register_ext_phy(dev);
+	else
+		mt7615_unregister_ext_phy(dev);
+
+	return 0;
+}
+
+static int
+mt7615_dbdc_get(void *data, u64 *val)
+{
+	struct mt7615_dev *dev = data;
+
+	*val = !!mt7615_ext_phy(dev);
+
+	return 0;
+}
+
+DEFINE_DEBUGFS_ATTRIBUTE(fops_dbdc, mt7615_dbdc_get,
+			 mt7615_dbdc_set, "%lld\n");
+
 static int
 mt7615_ampdu_stat_read(struct seq_file *file, void *data)
 {
@@ -183,6 +209,7 @@ int mt7615_init_debugfs(struct mt7615_dev *dev)
 				    mt7615_queues_acq);
 	debugfs_create_file("ampdu_stat", 0400, dir, dev, &fops_ampdu_stat);
 	debugfs_create_file("scs", 0600, dir, dev, &fops_scs);
+	debugfs_create_file("dbdc", 0600, dir, dev, &fops_dbdc);
 	debugfs_create_devm_seqfile(dev->mt76.dev, "radio", dir,
 				    mt7615_radio_read);
 	debugfs_create_u32("dfs_hw_pattern", 0400, dir, &dev->hw_pattern);
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/eeprom.c b/drivers/net/wireless/mediatek/mt76/mt7615/eeprom.c
index 61a3fba240ba..e4dcfa531a24 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/eeprom.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/eeprom.c
@@ -124,8 +124,9 @@ static void mt7615_eeprom_parse_hw_cap(struct mt7615_dev *dev)
 	if (!tx_mask || tx_mask > max_nss)
 		tx_mask = max_nss;
 
-	dev->mphy.antenna_mask = BIT(tx_mask) - 1;
-	dev->phy.chainmask = dev->mphy.antenna_mask;
+	dev->chainmask = BIT(tx_mask) - 1;
+	dev->mphy.antenna_mask = dev->chainmask;
+	dev->phy.chainmask = dev->chainmask;
 }
 
 int mt7615_eeprom_get_power_index(struct mt7615_dev *dev,
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/init.c b/drivers/net/wireless/mediatek/mt76/mt7615/init.c
index 78bcdf90ca5e..a37562965f41 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/init.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/init.c
@@ -256,22 +256,10 @@ mt7615_regd_notifier(struct wiphy *wiphy,
 	mt7615_dfs_init_radar_detector(phy);
 }
 
-int mt7615_register_device(struct mt7615_dev *dev)
+static void
+mt7615_init_wiphy(struct ieee80211_hw *hw)
 {
-	struct ieee80211_hw *hw = mt76_hw(dev);
 	struct wiphy *wiphy = hw->wiphy;
-	int ret;
-
-	dev->phy.dev = dev;
-	dev->phy.mt76 = &dev->mt76.phy;
-	dev->mt76.phy.priv = &dev->phy;
-	INIT_DELAYED_WORK(&dev->mt76.mac_work, mt7615_mac_work);
-	INIT_LIST_HEAD(&dev->sta_poll_list);
-	spin_lock_init(&dev->sta_poll_lock);
-
-	ret = mt7615_init_hardware(dev);
-	if (ret)
-		return ret;
 
 	hw->queues = 4;
 	hw->max_rates = 3;
@@ -290,13 +278,106 @@ int mt7615_register_device(struct mt7615_dev *dev)
 
 	ieee80211_hw_set(hw, TX_STATUS_NO_AMPDU_LEN);
 
+	hw->max_tx_fragments = MT_TXP_MAX_BUF_NUM;
+}
+
+static void
+mt7615_cap_dbdc_enable(struct mt7615_dev *dev)
+{
+	dev->mphy.sband_5g.sband.vht_cap.cap &=
+			~(IEEE80211_VHT_CAP_SHORT_GI_160 |
+			  IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ);
+	if (dev->chainmask == 0xf)
+		dev->mphy.antenna_mask = dev->chainmask >> 2;
+	else
+		dev->mphy.antenna_mask = dev->chainmask >> 1;
+	dev->phy.chainmask = dev->mphy.antenna_mask;
+	mt76_set_stream_caps(&dev->mt76, true);
+}
+
+static void
+mt7615_cap_dbdc_disable(struct mt7615_dev *dev)
+{
+	dev->mphy.sband_5g.sband.vht_cap.cap |=
+			IEEE80211_VHT_CAP_SHORT_GI_160 |
+			IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ;
+	dev->mphy.antenna_mask = dev->chainmask;
+	dev->phy.chainmask = dev->chainmask;
+	mt76_set_stream_caps(&dev->mt76, true);
+}
+
+int mt7615_register_ext_phy(struct mt7615_dev *dev)
+{
+	struct mt7615_phy *phy = mt7615_ext_phy(dev);
+	struct mt76_phy *mphy;
+	int ret;
+
+	if (test_bit(MT76_STATE_RUNNING, &dev->mphy.state))
+		return -EINVAL;
+
+	if (phy)
+		return 0;
+
+	mt7615_cap_dbdc_enable(dev);
+	mphy = mt76_alloc_phy(&dev->mt76, sizeof(*phy), &mt7615_ops);
+	if (!mphy)
+		return -ENOMEM;
+
+	phy = mphy->priv;
+	phy->dev = dev;
+	phy->mt76 = mphy;
+	phy->chainmask = dev->chainmask & ~dev->phy.chainmask;
+	mphy->antenna_mask = BIT(hweight8(phy->chainmask)) - 1;
+	mt7615_init_wiphy(mphy->hw);
+
+	/* second phy can only handle 5 GHz */
+	mphy->sband_2g.sband.n_channels = 0;
+	mphy->hw->wiphy->bands[NL80211_BAND_2GHZ] = NULL;
+
+	ret = mt76_register_phy(mphy);
+	if (ret)
+		ieee80211_free_hw(mphy->hw);
+
+	return ret;
+}
+
+void mt7615_unregister_ext_phy(struct mt7615_dev *dev)
+{
+	struct mt7615_phy *phy = mt7615_ext_phy(dev);
+	struct mt76_phy *mphy = dev->mt76.phy2;
+
+	if (!phy)
+		return;
+
+	mt7615_cap_dbdc_disable(dev);
+	mt76_unregister_phy(mphy);
+	ieee80211_free_hw(mphy->hw);
+}
+
+
+int mt7615_register_device(struct mt7615_dev *dev)
+{
+	struct ieee80211_hw *hw = mt76_hw(dev);
+	int ret;
+
+	dev->phy.dev = dev;
+	dev->phy.mt76 = &dev->mt76.phy;
+	dev->mt76.phy.priv = &dev->phy;
+	INIT_DELAYED_WORK(&dev->mt76.mac_work, mt7615_mac_work);
+	INIT_LIST_HEAD(&dev->sta_poll_list);
+	spin_lock_init(&dev->sta_poll_lock);
+
+	ret = mt7615_init_hardware(dev);
+	if (ret)
+		return ret;
+
+	mt7615_init_wiphy(hw);
 	dev->mphy.sband_2g.sband.ht_cap.cap |= IEEE80211_HT_CAP_LDPC_CODING;
 	dev->mphy.sband_5g.sband.ht_cap.cap |= IEEE80211_HT_CAP_LDPC_CODING;
 	dev->mphy.sband_5g.sband.vht_cap.cap |=
-			IEEE80211_VHT_CAP_SHORT_GI_160 |
 			IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
-			IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK |
-			IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ;
+			IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
+	mt7615_cap_dbdc_disable(dev);
 	dev->phy.dfs_state = -1;
 
 	ret = mt76_register_device(&dev->mt76, true, mt7615_rates,
@@ -307,8 +388,6 @@ int mt7615_register_device(struct mt7615_dev *dev)
 	mt7615_init_txpower(dev, &dev->mphy.sband_2g.sband);
 	mt7615_init_txpower(dev, &dev->mphy.sband_5g.sband);
 
-	hw->max_tx_fragments = MT_TXP_MAX_BUF_NUM;
-
 	return mt7615_init_debugfs(dev);
 }
 
@@ -317,6 +396,7 @@ void mt7615_unregister_device(struct mt7615_dev *dev)
 	struct mt76_txwi_cache *txwi;
 	int id;
 
+	mt7615_unregister_ext_phy(dev);
 	mt76_unregister_device(&dev->mt76);
 	mt7615_mcu_exit(dev);
 	mt7615_dma_cleanup(dev);
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h b/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h
index 2adf3b8a61b8..32f23f5fdd58 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h
@@ -115,6 +115,8 @@ struct mt7615_dev {
 	u32 vif_mask;
 	u32 omac_mask;
 
+	u16 chainmask;
+
 	struct list_head sta_poll_list;
 	spinlock_t sta_poll_lock;
 
@@ -211,6 +213,8 @@ u32 mt7615_reg_map(struct mt7615_dev *dev, u32 addr);
 
 int mt7615_register_device(struct mt7615_dev *dev);
 void mt7615_unregister_device(struct mt7615_dev *dev);
+int mt7615_register_ext_phy(struct mt7615_dev *dev);
+void mt7615_unregister_ext_phy(struct mt7615_dev *dev);
 int mt7615_eeprom_init(struct mt7615_dev *dev);
 int mt7615_eeprom_get_power_index(struct mt7615_dev *dev,
 				  struct ieee80211_channel *chan,
-- 
2.24.0


  parent reply	other threads:[~2019-11-30 15:31 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-30 15:30 [PATCH 01/29] mt76: move initialization of some struct members to mt76_alloc_device Felix Fietkau
2019-11-30 15:30 ` [PATCH 02/29] mt76: introduce struct mt76_phy Felix Fietkau
2019-11-30 15:30 ` [PATCH 03/29] mt76: add support for an extra wiphy in the rx path Felix Fietkau
2019-11-30 15:30 ` [PATCH 04/29] mt76: add support for an extra wiphy in the main tx path Felix Fietkau
2019-11-30 15:30 ` [PATCH 05/29] mt76: add support for an extra wiphy in the tx status path Felix Fietkau
2019-11-30 15:30 ` [PATCH 06/29] mt76: add support for an extra wiphy in mt76_sta_state() Felix Fietkau
2019-11-30 15:30 ` [PATCH 07/29] mt76: move channel state to struct mt76_phy Felix Fietkau
2019-11-30 15:30 ` [PATCH 08/29] mt76: keep a set of software tx queues per phy Felix Fietkau
2019-11-30 15:30 ` [PATCH 09/29] mt76: move state from struct mt76_dev to mt76_phy Felix Fietkau
2019-11-30 15:30 ` [PATCH 10/29] mt76: move chainmask back to driver specific structs Felix Fietkau
2019-11-30 15:30 ` [PATCH 11/29] mt76: move txpower_conf " Felix Fietkau
2019-11-30 15:30 ` [PATCH 12/29] mt76: move txpower and antenna mask to struct mt76_phy Felix Fietkau
2019-11-30 15:30 ` [PATCH 13/29] mt76: add multiple wiphy support to mt76_get_min_avg_rssi Felix Fietkau
2019-11-30 15:30 ` [PATCH 14/29] mt76: add priv pointer to struct mt76_phy Felix Fietkau
2019-11-30 15:30 ` [PATCH 15/29] mt76: add function for allocating an external wiphy Felix Fietkau
2019-12-03 20:02   ` [PATCH v2 15/29] mt76: add function for allocating an extra wiphy Felix Fietkau
2019-11-30 15:30 ` [PATCH 16/29] mt76: add ext_phy field to struct mt76_wcid Felix Fietkau
2019-11-30 15:30 ` [PATCH 17/29] mt76: move ampdu_ref from mt76_dev to driver struct Felix Fietkau
2019-11-30 15:30 ` [PATCH 18/29] mt76: mt7615: add dual-phy support for mac80211 ops Felix Fietkau
2019-11-30 15:30 ` [PATCH 19/29] mt76: mt7615: add multiple wiphy support for smart carrier sense Felix Fietkau
2019-11-30 15:30 ` [PATCH 20/29] mt76: mt7615: add missing register init for dual-wiphy support Felix Fietkau
2019-11-30 15:30 ` [PATCH 21/29] mt76: mt7615: remove useless MT_HW_RDD0/1 enum Felix Fietkau
2019-11-30 15:30 ` [PATCH 22/29] mt76: mt7615: add multiple wiphy support to the dfs support code Felix Fietkau
2019-11-30 15:30 ` [PATCH 23/29] mt76: mt7615: rework chainmask handling Felix Fietkau
2019-11-30 15:30 ` [PATCH 24/29] mt76: mt7615: add multiple wiphy support to the rx path Felix Fietkau
2019-11-30 15:30 ` [PATCH 25/29] mt76: mt7615: initialize dbdc settings on interface add Felix Fietkau
2019-11-30 15:30 ` [PATCH 26/29] mt76: mt7615: move radio/mac initialization to .start/stop callbacks Felix Fietkau
2019-11-30 15:30 ` [PATCH 27/29] mt76: mt7615: select the correct tx queue for frames sent to the second phy Felix Fietkau
2019-11-30 15:30 ` Felix Fietkau [this message]
2019-12-16 11:30   ` [PATCH 28/29] mt76: mt7615: add support for registering a second wiphy via debugfs Kalle Valo
2020-01-20 11:03   ` [PATCH v2 " Felix Fietkau
2019-11-30 15:30 ` [PATCH 29/29] mt76: mt7615: update beacon contents on BSS_CHANGED_BEACON Felix Fietkau

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