wifi: mt76: add mt76_connac_gen_ppe_thresh utility routine

gen_ppe_thresh routine is shared between mt7615, mt7915, mt7921 and
mt7996 so move it in mt76_connac module.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

drivers/net/wireless/mediatek/mt76/mt76_connac.h

@@ -359,6 +359,7 @@ mt76_connac_mutex_release(struct mt76_dev *dev, struct mt76_connac_pm *pm)
 	mutex_unlock(&dev->mutex);
 }
 
+void mt76_connac_gen_ppe_thresh(u8 *he_ppet, int nss);
 int mt76_connac_init_tx_queues(struct mt76_phy *phy, int idx, int n_desc,
 			       int ring_base, u32 flags);
 void mt76_connac_write_hw_txp(struct mt76_dev *dev,

drivers/net/wireless/mediatek/mt76/mt76_connac_mac.c

@@ -9,6 +9,27 @@
 #define HE_PREP(f, m, v)	le16_encode_bits(le32_get_bits(v, MT_CRXV_HE_##m),\
 						 IEEE80211_RADIOTAP_HE_##f)
 
+void mt76_connac_gen_ppe_thresh(u8 *he_ppet, int nss)
+{
+	static const u8 ppet16_ppet8_ru3_ru0[] = { 0x1c, 0xc7, 0x71 };
+	u8 i, ppet_bits, ppet_size, ru_bit_mask = 0x7; /* HE80 */
+
+	he_ppet[0] = FIELD_PREP(IEEE80211_PPE_THRES_NSS_MASK, nss - 1) |
+		     FIELD_PREP(IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK,
+				ru_bit_mask);
+
+	ppet_bits = IEEE80211_PPE_THRES_INFO_PPET_SIZE *
+		    nss * hweight8(ru_bit_mask) * 2;
+	ppet_size = DIV_ROUND_UP(ppet_bits, 8);
+
+	for (i = 0; i < ppet_size - 1; i++)
+		he_ppet[i + 1] = ppet16_ppet8_ru3_ru0[i % 3];
+
+	he_ppet[i + 1] = ppet16_ppet8_ru3_ru0[i % 3] &
+			 (0xff >> (8 - (ppet_bits - 1) % 8));
+}
+EXPORT_SYMBOL_GPL(mt76_connac_gen_ppe_thresh);
+
 int mt76_connac_pm_wake(struct mt76_phy *phy, struct mt76_connac_pm *pm)
 {
 	struct mt76_dev *dev = phy->dev;

drivers/net/wireless/mediatek/mt76/mt7915/init.c

@@ -931,27 +931,6 @@ mt7915_set_stream_he_txbf_caps(struct mt7915_phy *phy,
 	}
 }
 
-static void
-mt7915_gen_ppe_thresh(u8 *he_ppet, int nss)
-{
-	u8 i, ppet_bits, ppet_size, ru_bit_mask = 0x7; /* HE80 */
-	static const u8 ppet16_ppet8_ru3_ru0[] = {0x1c, 0xc7, 0x71};
-
-	he_ppet[0] = FIELD_PREP(IEEE80211_PPE_THRES_NSS_MASK, nss - 1) |
-		     FIELD_PREP(IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK,
-				ru_bit_mask);
-
-	ppet_bits = IEEE80211_PPE_THRES_INFO_PPET_SIZE *
-		    nss * hweight8(ru_bit_mask) * 2;
-	ppet_size = DIV_ROUND_UP(ppet_bits, 8);
-
-	for (i = 0; i < ppet_size - 1; i++)
-		he_ppet[i + 1] = ppet16_ppet8_ru3_ru0[i % 3];
-
-	he_ppet[i + 1] = ppet16_ppet8_ru3_ru0[i % 3] &
-			 (0xff >> (8 - (ppet_bits - 1) % 8));
-}
-
 static int
 mt7915_init_he_caps(struct mt7915_phy *phy, enum nl80211_band band,
 		    struct ieee80211_sband_iftype_data *data)
@@ -1101,7 +1080,7 @@ mt7915_init_he_caps(struct mt7915_phy *phy, enum nl80211_band band,
 		memset(he_cap->ppe_thres, 0, sizeof(he_cap->ppe_thres));
 		if (he_cap_elem->phy_cap_info[6] &
 		    IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) {
-			mt7915_gen_ppe_thresh(he_cap->ppe_thres, nss);
+			mt76_connac_gen_ppe_thresh(he_cap->ppe_thres, nss);
 		} else {
 			he_cap_elem->phy_cap_info[9] |=
 				u8_encode_bits(IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_16US,

drivers/net/wireless/mediatek/mt76/mt7921/main.c

@@ -9,27 +9,6 @@
 #include "mt7921.h"
 #include "mcu.h"
 
-static void
-mt7921_gen_ppe_thresh(u8 *he_ppet, int nss)
-{
-	u8 i, ppet_bits, ppet_size, ru_bit_mask = 0x7; /* HE80 */
-	static const u8 ppet16_ppet8_ru3_ru0[] = {0x1c, 0xc7, 0x71};
-
-	he_ppet[0] = FIELD_PREP(IEEE80211_PPE_THRES_NSS_MASK, nss - 1) |
-		     FIELD_PREP(IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK,
-				ru_bit_mask);
-
-	ppet_bits = IEEE80211_PPE_THRES_INFO_PPET_SIZE *
-		    nss * hweight8(ru_bit_mask) * 2;
-	ppet_size = DIV_ROUND_UP(ppet_bits, 8);
-
-	for (i = 0; i < ppet_size - 1; i++)
-		he_ppet[i + 1] = ppet16_ppet8_ru3_ru0[i % 3];
-
-	he_ppet[i + 1] = ppet16_ppet8_ru3_ru0[i % 3] &
-			 (0xff >> (8 - (ppet_bits - 1) % 8));
-}
-
 static int
 mt7921_init_he_caps(struct mt7921_phy *phy, enum nl80211_band band,
 		    struct ieee80211_sband_iftype_data *data)
@@ -168,7 +147,7 @@ mt7921_init_he_caps(struct mt7921_phy *phy, enum nl80211_band band,
 		memset(he_cap->ppe_thres, 0, sizeof(he_cap->ppe_thres));
 		if (he_cap_elem->phy_cap_info[6] &
 		    IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) {
-			mt7921_gen_ppe_thresh(he_cap->ppe_thres, nss);
+			mt76_connac_gen_ppe_thresh(he_cap->ppe_thres, nss);
 		} else {
 			he_cap_elem->phy_cap_info[9] |=
 				u8_encode_bits(IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_16US,

drivers/net/wireless/mediatek/mt76/mt7996/init.c

@@ -557,27 +557,6 @@ mt7996_set_stream_he_txbf_caps(struct mt7996_phy *phy,
 	elem->phy_cap_info[7] |= c;
 }
 
-static void
-mt7996_gen_ppe_thresh(u8 *he_ppet, int nss)
-{
-	u8 i, ppet_bits, ppet_size, ru_bit_mask = 0x7; /* HE80 */
-	static const u8 ppet16_ppet8_ru3_ru0[] = {0x1c, 0xc7, 0x71};
-
-	he_ppet[0] = FIELD_PREP(IEEE80211_PPE_THRES_NSS_MASK, nss - 1) |
-		     FIELD_PREP(IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK,
-				ru_bit_mask);
-
-	ppet_bits = IEEE80211_PPE_THRES_INFO_PPET_SIZE *
-		    nss * hweight8(ru_bit_mask) * 2;
-	ppet_size = DIV_ROUND_UP(ppet_bits, 8);
-
-	for (i = 0; i < ppet_size - 1; i++)
-		he_ppet[i + 1] = ppet16_ppet8_ru3_ru0[i % 3];
-
-	he_ppet[i + 1] = ppet16_ppet8_ru3_ru0[i % 3] &
-			 (0xff >> (8 - (ppet_bits - 1) % 8));
-}
-
 static void
 mt7996_init_he_caps(struct mt7996_phy *phy, enum nl80211_band band,
 		    struct ieee80211_sband_iftype_data *data,
@@ -683,7 +662,7 @@ mt7996_init_he_caps(struct mt7996_phy *phy, enum nl80211_band band,
 	memset(he_cap->ppe_thres, 0, sizeof(he_cap->ppe_thres));
 	if (he_cap_elem->phy_cap_info[6] &
 	    IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) {
-		mt7996_gen_ppe_thresh(he_cap->ppe_thres, nss);
+		mt76_connac_gen_ppe_thresh(he_cap->ppe_thres, nss);
 	} else {
 		he_cap_elem->phy_cap_info[9] |=
 			u8_encode_bits(IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_16US,