From 14733d632430b788c7323b038bd679045a9dba95 Mon Sep 17 00:00:00 2001
From: Allen Ye <allen.ye@mediatek.com>
Date: Fri, 15 Dec 2023 14:03:11 +0800
Subject: [PATCH 1047/1048] wifi: mt76: mt7915: Add support for lpi and
 duplicate mode

Add support lpi and duplicate mode.
1. lpi_enable: lpi fw cmd and set psd flag to fw by the country setting.
2. txpower_dup: Add bandwidth duplicate mode for 6g band and change power
value of beacon.
3. mgmt_pwr_enhence: Add mgmt frame power enhencement by fix 6g band
bandwidth
4. support runtime change sku table by specify sku index (default will
find the first match country).
3. Add parsing negative txpower stored unsigned in dts.

Signed-off-by: Allen Ye <allen.ye@mediatek.com>
---
 eeprom.c             | 15 +++++---
 mt76.h               |  5 ++-
 mt76_connac2_mac.h   |  7 ++++
 mt76_connac_mac.c    |  7 +++-
 mt76_connac_mcu.h    |  1 +
 mt7915/debugfs.c     |  3 +-
 mt7915/init.c        |  6 ++-
 mt7915/mcu.c         | 91 +++++++++++++++++++++++++++++++++++++++++---
 mt7915/mt7915.h      |  1 +
 mt7915/mtk_debugfs.c |  1 +
 mt7915/vendor.c      | 75 ++++++++++++++++++++++++++++++++++++
 mt7915/vendor.h      | 15 ++++++++
 12 files changed, 210 insertions(+), 17 deletions(-)

diff --git a/eeprom.c b/eeprom.c
index 4213e44..2ee262a 100644
--- a/eeprom.c
+++ b/eeprom.c
@@ -224,8 +224,9 @@ static bool mt76_string_prop_find(struct property *prop, const char *str)
 }
 
 struct device_node *
-mt76_find_power_limits_node(struct mt76_dev *dev)
+mt76_find_power_limits_node(struct mt76_phy *phy)
 {
+	struct mt76_dev *dev = phy->dev;
 	struct device_node *np = dev->dev->of_node;
 	const char *const region_names[] = {
 		[NL80211_DFS_UNSET] = "ww",
@@ -235,6 +236,7 @@ mt76_find_power_limits_node(struct mt76_dev *dev)
 	};
 	struct device_node *cur, *fallback = NULL;
 	const char *region_name = NULL;
+	char index[4] = {0};
 
 	if (dev->region < ARRAY_SIZE(region_names))
 		region_name = region_names[dev->region];
@@ -243,17 +245,20 @@ mt76_find_power_limits_node(struct mt76_dev *dev)
 	if (!np)
 		return NULL;
 
+	snprintf(index, sizeof(index), "%d", phy->sku_idx);
 	for_each_child_of_node(np, cur) {
 		struct property *country = of_find_property(cur, "country", NULL);
 		struct property *regd = of_find_property(cur, "regdomain", NULL);
+		struct property *sku_index = of_find_property(cur, "sku-index", NULL);
 
 		if (!country && !regd) {
 			fallback = cur;
 			continue;
 		}
 
-		if (mt76_string_prop_find(country, dev->alpha2) ||
-		    mt76_string_prop_find(regd, region_name)) {
+		if ((mt76_string_prop_find(country, dev->alpha2) ||
+		    mt76_string_prop_find(regd, region_name)) &&
+		    (!phy->sku_idx || mt76_string_prop_find(sku_index, index))) {
 			of_node_put(np);
 			return cur;
 		}
@@ -328,7 +333,7 @@ mt76_apply_array_limit(s8 *pwr, size_t pwr_len, const __be32 *data,
 
 	for (i = 0; i < pwr_len; i++) {
 		pwr[i] = min_t(s8, target_power,
-			       be32_to_cpu(data[i]) + nss_delta);
+			       (s8)be32_to_cpu(data[i]) + nss_delta);
 		*max_power = max(*max_power, pwr[i]);
 	}
 }
@@ -392,7 +397,7 @@ s8 mt76_get_rate_power_limits(struct mt76_phy *phy,
 	if (!IS_ENABLED(CONFIG_OF))
 		return target_power;
 
-	np = mt76_find_power_limits_node(dev);
+	np = mt76_find_power_limits_node(phy);
 	if (!np)
 		return target_power;
 
diff --git a/mt76.h b/mt76.h
index 1aa266f..4291acd 100644
--- a/mt76.h
+++ b/mt76.h
@@ -852,6 +852,9 @@ struct mt76_phy {
 	u8 macaddr[ETH_ALEN];
 
 	int txpower_cur;
+	u8 beacon_dup;
+	u8 mgmt_pwr_enhance;
+	u8 sku_idx;
 	u8 antenna_mask;
 	u16 chainmask;
 
@@ -1740,7 +1743,7 @@ mt76_mcu_skb_send_msg(struct mt76_dev *dev, struct sk_buff *skb, int cmd,
 void mt76_set_irq_mask(struct mt76_dev *dev, u32 addr, u32 clear, u32 set);
 
 struct device_node *
-mt76_find_power_limits_node(struct mt76_dev *dev);
+mt76_find_power_limits_node(struct mt76_phy *phy);
 struct device_node *
 mt76_find_channel_node(struct device_node *np, struct ieee80211_channel *chan);
 
diff --git a/mt76_connac2_mac.h b/mt76_connac2_mac.h
index 5f13211..c49a330 100644
--- a/mt76_connac2_mac.h
+++ b/mt76_connac2_mac.h
@@ -355,4 +355,11 @@ enum tx_port_idx {
 	MT_TX_PORT_IDX_MCU
 };
 
+enum tx_bw_idx {
+	MT_TX_BW_IDX_20,
+	MT_TX_BW_IDX_40,
+	MT_TX_BW_IDX_80,
+	MT_TX_BW_IDX_160,
+};
+
 #endif /* __MT76_CONNAC2_MAC_H */
diff --git a/mt76_connac_mac.c b/mt76_connac_mac.c
index d036047..d41f004 100644
--- a/mt76_connac_mac.c
+++ b/mt76_connac_mac.c
@@ -564,7 +564,8 @@ void mt76_connac2_mac_write_txwi(struct mt76_dev *dev, __le32 *txwi,
 		u16 rate = mt76_connac2_mac_tx_rate_val(mphy, vif, beacon,
 							multicast);
 		u32 val = MT_TXD6_FIXED_BW;
-
+		if (dev->phys[band_idx]->beacon_dup)
+			val |= MT_TX_BW_IDX_80;
 		/* hardware won't add HTC for mgmt/ctrl frame */
 		txwi[2] |= cpu_to_le32(MT_TXD2_HTC_VLD);
 
@@ -577,7 +578,9 @@ void mt76_connac2_mac_write_txwi(struct mt76_dev *dev, __le32 *txwi,
 
 			if (!spe_idx)
 				spe_idx = 24 + phy_idx;
-			txwi[7] |= cpu_to_le32(FIELD_PREP(MT_TXD7_SPE_IDX, spe_idx));
+			txwi[7] |= cpu_to_le32(FIELD_PREP(MT_TXD7_SPE_IDX,
+							  dev->phys[band_idx]->mgmt_pwr_enhance ?
+							  0 : spe_idx));
 		}
 
 		txwi[7] &= ~cpu_to_le32(MT_TXD7_HW_AMSDU);
diff --git a/mt76_connac_mcu.h b/mt76_connac_mcu.h
index 4e1006d..e581084 100644
--- a/mt76_connac_mcu.h
+++ b/mt76_connac_mcu.h
@@ -1249,6 +1249,7 @@ enum {
 	MCU_EXT_CMD_SWLNA_ACI_CTRL = 0xc0,
 	MCU_EXT_CMD_CSI_CTRL = 0xc2,
 	MCU_EXT_CMD_IPI_HIST_SCAN = 0xc5,
+	MCU_EXT_CMD_LPI_CTRL = 0xc8,
 };
 
 enum {
diff --git a/mt7915/debugfs.c b/mt7915/debugfs.c
index ead0f98..017d43d 100644
--- a/mt7915/debugfs.c
+++ b/mt7915/debugfs.c
@@ -1296,7 +1296,6 @@ mt7915_txpower_info_show(struct seq_file *file, void *data)
 {
 	struct mt7915_phy *phy = file->private;
 	struct mt76_phy *mphy = phy->mt76;
-	struct mt76_dev *dev = mphy->dev;
 	struct {
 		u8 category;
 		u8 rsv1;
@@ -1373,7 +1372,7 @@ mt7915_txpower_info_show(struct seq_file *file, void *data)
 	seq_printf(file, "    Theraml Compensation Value: %d\n",
 		   basic_info.thermal_compensate_value);
 
-	np = mt76_find_power_limits_node(dev);
+	np = mt76_find_power_limits_node(mphy);
 	seq_printf(file, "    RegDB:  %s\n", !np ? "enable" : "disable");
 
 out:
diff --git a/mt7915/init.c b/mt7915/init.c
index 1a41282..32bbd6c 100644
--- a/mt7915/init.c
+++ b/mt7915/init.c
@@ -287,7 +287,7 @@ static void __mt7915_init_txpower(struct mt7915_phy *phy,
 
 	phy->sku_limit_en = true;
 	phy->sku_path_en = true;
-	np = mt76_find_power_limits_node(&dev->mt76);
+	np = mt76_find_power_limits_node(phy->mt76);
 	for (i = 0; i < sband->n_channels; i++) {
 		struct ieee80211_channel *chan = &sband->channels[i];
 		u32 target_power = 0;
@@ -331,8 +331,10 @@ void mt7915_init_txpower(struct mt7915_phy *phy)
 		__mt7915_init_txpower(phy, &phy->mt76->sband_2g.sband);
 	if (phy->mt76->cap.has_5ghz)
 		__mt7915_init_txpower(phy, &phy->mt76->sband_5g.sband);
-	if (phy->mt76->cap.has_6ghz)
+	if (phy->mt76->cap.has_6ghz) {
 		__mt7915_init_txpower(phy, &phy->mt76->sband_6g.sband);
+		phy->mt76->beacon_dup = 1;
+	}
 }
 
 static void
diff --git a/mt7915/mcu.c b/mt7915/mcu.c
index 7e0e277..ba47d0d 100644
--- a/mt7915/mcu.c
+++ b/mt7915/mcu.c
@@ -1522,7 +1522,8 @@ mt7915_mcu_set_spe_idx(struct mt7915_dev *dev, struct ieee80211_vif *vif,
 {
 	struct mt7915_vif *mvif = (struct mt7915_vif *)vif->drv_priv;
 	struct mt76_phy *mphy = mvif->phy->mt76;
-	u8 spe_idx = mt76_connac_spe_idx(mphy->antenna_mask);
+	u8 spe_idx = mphy->mgmt_pwr_enhance ?
+		     0 : mt76_connac_spe_idx(mphy->antenna_mask);
 
 	return mt7915_mcu_set_fixed_rate_ctrl(dev, vif, sta, &spe_idx,
 					      RATE_PARAM_SPE_UPDATE);
@@ -3488,6 +3489,22 @@ mt7915_update_txpower(struct mt7915_phy *phy, int tx_power)
 		mphy->txpower_cur = e2p_power_limit;
 }
 
+int mt7915_get_psd_country(char *country)
+{
+	char country_list[][3] = {"US", "KR", "BR", "CL", "MY", ""};
+	int i;
+
+	if (strlen(country) != 2)
+		return 0;
+
+	for (i = 0; country_list[i][0] != '\0'; i++) {
+		if (!strncmp(country, country_list[i], 2))
+			return 1;
+	}
+
+	return 0;
+}
+
 int mt7915_mcu_set_txpower_sku(struct mt7915_phy *phy)
 {
 #define TX_POWER_LIMIT_TABLE_RATE	0
@@ -3519,14 +3536,37 @@ int mt7915_mcu_set_txpower_sku(struct mt7915_phy *phy)
 		mt7915_update_txpower(phy, tx_power);
 		return 0;
 	}
-
 	skb = mt76_mcu_msg_alloc(&dev->mt76, NULL,
 				 sizeof(hdr) + MT7915_SKU_RATE_NUM);
 	if (!skb)
 		return -ENOMEM;
 
 	skb_put_data(skb, &hdr, sizeof(hdr));
-	skb_put_data(skb, &la.cck, len[SKU_CCK] + len[SKU_OFDM]);
+	skb_put_data(skb, &la.cck, len[SKU_CCK]);
+
+	if (phy->mt76->cap.has_6ghz && mphy->beacon_dup &&
+	    !mt7915_get_psd_country(dev->mt76.alpha2)) {
+		switch (mphy->chandef.width) {
+		case NL80211_CHAN_WIDTH_20:
+			skb_put_data(skb, &la.mcs[0], len[SKU_OFDM]);
+			break;
+		case NL80211_CHAN_WIDTH_40:
+			skb_put_data(skb, &la.mcs[1], len[SKU_OFDM]);
+			break;
+		case NL80211_CHAN_WIDTH_80:
+			skb_put_data(skb, &la.mcs[2], len[SKU_OFDM]);
+			break;
+		case NL80211_CHAN_WIDTH_160:
+			skb_put_data(skb, &la.mcs[3], len[SKU_OFDM]);
+			break;
+		default:
+			skb_put_data(skb, &la.ofdm, len[SKU_OFDM]);
+			break;
+		}
+	} else {
+		skb_put_data(skb, &la.ofdm, len[SKU_OFDM]);
+	}
+
 	skb_put_data(skb, &la.mcs[0], len[SKU_HT_BW20]);
 	skb_put_data(skb, &la.mcs[1], len[SKU_HT_BW40]);
 
@@ -3556,8 +3596,34 @@ int mt7915_mcu_set_txpower_sku(struct mt7915_phy *phy)
 	hdr.limit_type = TX_POWER_LIMIT_TABLE_PATH;
 	skb_put_data(skb, &hdr, sizeof(hdr));
 	skb_put_data(skb, &la.path.cck, sizeof(la.path.cck));
-	skb_put_data(skb, &la.path.ofdm, sizeof(la.path.ofdm));
-	skb_put_data(skb, &la.path.ofdm_bf[1], sizeof(la.path.ofdm_bf) - 1);
+
+	if (phy->mt76->cap.has_6ghz && mphy->beacon_dup) {
+		switch (mphy->chandef.width) {
+		case NL80211_CHAN_WIDTH_20:
+			skb_put_data(skb, &la.path.ru[3], sizeof(la.path.ofdm));
+			skb_put_data(skb, &la.path.ru_bf[3][1], sizeof(la.path.ofdm_bf) - 1);
+			break;
+		case NL80211_CHAN_WIDTH_40:
+			skb_put_data(skb, &la.path.ru[4], sizeof(la.path.ofdm));
+			skb_put_data(skb, &la.path.ru_bf[4][1], sizeof(la.path.ofdm_bf) - 1);
+			break;
+		case NL80211_CHAN_WIDTH_80:
+			skb_put_data(skb, &la.path.ru[5], sizeof(la.path.ofdm));
+			skb_put_data(skb, &la.path.ru_bf[5][1], sizeof(la.path.ofdm_bf) - 1);
+			break;
+		case NL80211_CHAN_WIDTH_160:
+			skb_put_data(skb, &la.path.ru[6], sizeof(la.path.ofdm));
+			skb_put_data(skb, &la.path.ru_bf[6][1], sizeof(la.path.ofdm_bf) - 1);
+			break;
+		default:
+			skb_put_data(skb, &la.path.ofdm, sizeof(la.path.ofdm));
+			skb_put_data(skb, &la.path.ofdm_bf[1], sizeof(la.path.ofdm_bf) - 1);
+			break;
+		}
+	} else {
+		skb_put_data(skb, &la.path.ofdm, sizeof(la.path.ofdm));
+		skb_put_data(skb, &la.path.ofdm_bf[1], sizeof(la.path.ofdm_bf) - 1);
+	}
 
 	/* HT20 and HT40 */
 	skb_put_data(skb, &la.path.ru[3], sizeof(la.path.ru[3]));
@@ -3633,6 +3699,21 @@ int mt7915_mcu_get_txpower_sku(struct mt7915_phy *phy, s8 *txpower, int len,
 	return 0;
 }
 
+int mt7915_mcu_set_lpi(struct mt7915_phy *phy, bool en)
+{
+	struct mt76_dev *mdev = &(phy->dev->mt76);
+	struct {
+		u8 enable;
+		u8 psd_limit;
+		u8 _rsv[2];
+	} __packed req = {
+		.enable = en,
+		.psd_limit = en ? mt7915_get_psd_country(mdev->alpha2) : 0,
+	};
+	return mt76_mcu_send_msg(mdev, MCU_EXT_CMD(LPI_CTRL), &req,
+				 sizeof(req), false);
+}
+
 int mt7915_mcu_set_test_param(struct mt7915_dev *dev, u8 param, bool test_mode,
 			      u8 en)
 {
diff --git a/mt7915/mt7915.h b/mt7915/mt7915.h
index 38a9db4..23ee118 100644
--- a/mt7915/mt7915.h
+++ b/mt7915/mt7915.h
@@ -793,6 +793,7 @@ int mt7915_mcu_set_csi(struct mt7915_phy *phy, u8 mode,
 void mt7915_vendor_amnt_fill_rx(struct mt7915_phy *phy, struct sk_buff *skb);
 int mt7915_vendor_amnt_sta_remove(struct mt7915_phy *phy,
 				  struct ieee80211_sta *sta);
+int mt7915_mcu_set_lpi(struct mt7915_phy *phy, bool en);
 #endif
 int mt7915_mcu_set_edcca(struct mt7915_phy *phy, int mode, u8 *value, s8 compensation);
 int mt7915_mcu_get_edcca(struct mt7915_phy *phy, u8 mode, s8 *value);
diff --git a/mt7915/mtk_debugfs.c b/mt7915/mtk_debugfs.c
index 9da6328..50e7b6c 100644
--- a/mt7915/mtk_debugfs.c
+++ b/mt7915/mtk_debugfs.c
@@ -3922,6 +3922,7 @@ int mt7915_mtk_init_debugfs(struct mt7915_phy *phy, struct dentry *dir)
 			    &fops_txbf_sta_rec);
 
 	debugfs_create_u8("sku_disable", 0600, dir, &dev->dbg.sku_disable);
+	debugfs_create_u8("mgmt_pwr_enhance", 0600, dir, &phy->mt76->mgmt_pwr_enhance);
 
 	debugfs_create_devm_seqfile(dev->mt76.dev, "eeprom_mode", dir,
 				    mt7915_show_eeprom_mode);
diff --git a/mt7915/vendor.c b/mt7915/vendor.c
index 432d750..566fec0 100644
--- a/mt7915/vendor.c
+++ b/mt7915/vendor.c
@@ -106,6 +106,13 @@ bss_color_ctrl_policy[NUM_MTK_VENDOR_ATTRS_BSS_COLOR_CTRL] = {
 	[MTK_VENDOR_ATTR_AVAL_BSS_COLOR_BMP] = { .type = NLA_U64 },
 };
 
+static struct nla_policy
+txpower_ctrl_policy[NUM_MTK_VENDOR_ATTRS_TXPOWER_CTRL] = {
+	[MTK_VENDOR_ATTR_TXPOWER_CTRL_LPI_ENABLE] = { .type = NLA_U8 },
+	[MTK_VENDOR_ATTR_TXPOWER_CTRL_SKU_IDX] = { .type = NLA_U8 },
+	[MTK_VENDOR_ATTR_TXPOWER_CTRL_BCN_DUP] = { .type = NLA_U8 },
+};
+
 struct csi_null_tone {
 	u8 start;
 	u8 end;
@@ -1335,6 +1342,63 @@ mt7915_vendor_bss_color_ctrl_dump(struct wiphy *wiphy, struct wireless_dev *wdev
 	return len;
 }
 
+static int mt7915_vendor_txpower_ctrl(struct wiphy *wiphy,
+				  struct wireless_dev *wdev,
+				  const void *data,
+				  int data_len)
+{
+	struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
+	struct mt7915_phy *phy = mt7915_hw_phy(hw);
+	struct mt76_phy *mphy = phy->mt76;
+	struct nlattr *tb[NUM_MTK_VENDOR_ATTRS_TXPOWER_CTRL];
+	struct mt76_power_limits limits;
+	int err;
+	u8 val;
+
+	err = nla_parse(tb, MTK_VENDOR_ATTR_TXPOWER_CTRL_MAX, data, data_len,
+			txpower_ctrl_policy, NULL);
+	if (err)
+		return err;
+
+	if (tb[MTK_VENDOR_ATTR_TXPOWER_CTRL_LPI_ENABLE]) {
+		val = nla_get_u8(tb[MTK_VENDOR_ATTR_TXPOWER_CTRL_LPI_ENABLE]);
+
+		if (mphy->cap.has_6ghz) {
+			err = mt7915_mcu_set_lpi(phy, val);
+			if (err)
+				return err;
+		}
+	}
+
+	if (tb[MTK_VENDOR_ATTR_TXPOWER_CTRL_SKU_IDX]) {
+		mphy->sku_idx = nla_get_u8(tb[MTK_VENDOR_ATTR_TXPOWER_CTRL_SKU_IDX]);
+
+		if (mt76_find_power_limits_node(mphy) == NULL)
+			mphy->sku_idx = 0;
+
+		phy->sku_path_en = true;
+		mt76_get_rate_power_limits(mphy, mphy->chandef.chan, &limits, 127);
+		if (!limits.path.ofdm[0])
+			phy->sku_path_en = false;
+
+		err = mt7915_mcu_set_sku_en(phy);
+		if (err)
+			return err;
+	}
+
+	if (tb[MTK_VENDOR_ATTR_TXPOWER_CTRL_BCN_DUP]) {
+		val = nla_get_u8(tb[MTK_VENDOR_ATTR_TXPOWER_CTRL_BCN_DUP]);
+		if (mphy->cap.has_6ghz)
+			mphy->beacon_dup = val;
+	}
+
+	err = mt7915_mcu_set_txpower_sku(phy);
+	if (err)
+		return err;
+
+	return 0;
+}
+
 static const struct wiphy_vendor_command mt7915_vendor_commands[] = {
 	{
 		.info = {
@@ -1451,6 +1515,17 @@ static const struct wiphy_vendor_command mt7915_vendor_commands[] = {
 		.dumpit = mt7915_vendor_bss_color_ctrl_dump,
 		.policy = bss_color_ctrl_policy,
 		.maxattr = MTK_VENDOR_ATTR_BSS_COLOR_CTRL_MAX,
+	},
+	{
+		.info = {
+			.vendor_id = MTK_NL80211_VENDOR_ID,
+			.subcmd = MTK_NL80211_VENDOR_SUBCMD_TXPOWER_CTRL,
+		},
+		.flags = WIPHY_VENDOR_CMD_NEED_NETDEV |
+			 WIPHY_VENDOR_CMD_NEED_RUNNING,
+		.doit = mt7915_vendor_txpower_ctrl,
+		.policy = txpower_ctrl_policy,
+		.maxattr = MTK_VENDOR_ATTR_TXPOWER_CTRL_MAX,
 	}
 };
 
diff --git a/mt7915/vendor.h b/mt7915/vendor.h
index 03d1660..5b8a1fb 100644
--- a/mt7915/vendor.h
+++ b/mt7915/vendor.h
@@ -16,6 +16,7 @@ enum mtk_nl80211_vendor_subcmds {
 	MTK_NL80211_VENDOR_SUBCMD_3WIRE_CTRL = 0xc8,
 	MTK_NL80211_VENDOR_SUBCMD_IBF_CTRL = 0xc9,
 	MTK_NL80211_VENDOR_SUBCMD_BSS_COLOR_CTRL = 0xca,
+	MTK_NL80211_VENDOR_SUBCMD_TXPOWER_CTRL = 0xce,
 };
 
 
@@ -274,4 +275,18 @@ enum mtk_vendor_attr_bss_color_ctrl {
 	MTK_VENDOR_ATTR_BSS_COLOR_CTRL_MAX =
 		NUM_MTK_VENDOR_ATTRS_BSS_COLOR_CTRL - 1
 };
+
+enum mtk_vendor_attr_txpower_ctrl {
+	MTK_VENDOR_ATTR_TXPOWER_CTRL_UNSPEC,
+
+	MTK_VENDOR_ATTR_TXPOWER_CTRL_LPI_ENABLE,
+	MTK_VENDOR_ATTR_TXPOWER_CTRL_SKU_IDX,
+	MTK_VENDOR_ATTR_TXPOWER_CTRL_BCN_DUP,
+
+	/* keep last */
+	NUM_MTK_VENDOR_ATTRS_TXPOWER_CTRL,
+	MTK_VENDOR_ATTR_TXPOWER_CTRL_MAX =
+		NUM_MTK_VENDOR_ATTRS_TXPOWER_CTRL - 1
+};
+
 #endif
-- 
2.18.0