Introduce support for rate-txpower compensation for mt7663/mt7921 chipsets.
Rate-txpower limit is specified through dts
Signed-off-by: Lorenzo Bianconi <lorenzo@xxxxxxxxxx>
---
.../net/wireless/mediatek/mt76/mt7615/init.c | 5 +-
.../net/wireless/mediatek/mt76/mt7615/main.c | 4 +
.../wireless/mediatek/mt76/mt76_connac_mcu.c | 133 ++++++++++++++++++
.../wireless/mediatek/mt76/mt76_connac_mcu.h | 23 +++
.../net/wireless/mediatek/mt76/mt7921/init.c | 2 +
.../net/wireless/mediatek/mt76/mt7921/main.c | 4 +
6 files changed, 170 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/init.c b/drivers/net/wireless/mediatek/mt76/mt7615/init.c
index e23898365166..d2eb8e9fb7f1 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/init.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/init.c
@@ -323,8 +323,11 @@ mt7615_regd_notifier(struct wiphy *wiphy,
if (chandef->chan->flags & IEEE80211_CHAN_RADAR)
mt7615_dfs_init_radar_detector(phy);
- if (mt7615_firmware_offload(phy->dev))
+
+ if (mt7615_firmware_offload(phy->dev)) {
mt76_connac_mcu_set_channel_domain(mphy);
+ mt76_connac_mcu_set_rate_txpower(mphy);
+ }
mt7615_mutex_release(dev);
}
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/main.c b/drivers/net/wireless/mediatek/mt76/mt7615/main.c
index e30b256784e0..62d9df47a1f6 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/main.c
@@ -66,6 +66,10 @@ static int mt7615_start(struct ieee80211_hw *hw)
ret = mt76_connac_mcu_set_channel_domain(phy->mt76);
if (ret)
goto out;
+
+ ret = mt76_connac_mcu_set_rate_txpower(phy->mt76);
+ if (ret)
+ goto out;
}
ret = mt7615_mcu_set_chan_info(phy, MCU_EXT_CMD_SET_RX_PATH);
diff --git a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c
index 4892728ad9bb..fdc64993e531 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c
@@ -1564,6 +1564,139 @@ void mt76_connac_mcu_coredump_event(struct mt76_dev *dev, struct sk_buff *skb,
}
EXPORT_SYMBOL_GPL(mt76_connac_mcu_coredump_event);
+static void
+mt76_connac_mcu_build_sku(struct mt76_dev *dev, s8 *sku,
+ struct mt76_power_limits *limits,
+ enum nl80211_band band)
+{
+ int max_power = is_mt7921(dev) ? 127 : 63;
+ int i, offset = sizeof(limits->cck);
+
+ memset(sku, max_power, MT_SKU_POWER_LIMIT);
+
+ if (band == NL80211_BAND_2GHZ) {
+ /* cck */
+ memcpy(sku, limits->cck, sizeof(limits->cck));
+ }
+
+ /* ofdm */
+ memcpy(&sku[offset], limits->ofdm, sizeof(limits->ofdm));
+ offset += sizeof(limits->ofdm);
+
+ /* ht */
+ for (i = 0; i < 2; i++) {
+ memcpy(&sku[offset], limits->mcs[i], 8);
+ offset += 8;
+ }
+ sku[offset++] = limits->mcs[0][0];
+
+ /* vht */
+ for (i = 0; i < ARRAY_SIZE(limits->mcs); i++) {
+ memcpy(&sku[offset], limits->mcs[i],
+ ARRAY_SIZE(limits->mcs[i]));
+ offset += 12;
+ }
+
+ if (!is_mt7921(dev))
+ return;
+
+ /* he */
+ for (i = 0; i < ARRAY_SIZE(limits->ru); i++) {
+ memcpy(&sku[offset], limits->ru[i], ARRAY_SIZE(limits->ru[i]));
+ offset += ARRAY_SIZE(limits->ru[i]);
+ }
+}
+
+static int
+mt76_connac_mcu_rate_txpower_band(struct mt76_phy *phy,
+ enum nl80211_band band)
+{
+ struct mt76_dev *dev = phy->dev;
+ int sku_len, batch_len = is_mt7921(dev) ? 8 : 16;
+ static const u8 chan_list_2ghz[] = {
+ 1, 2, 3, 4, 5, 6, 7,
+ 8, 9, 10, 11, 12, 13, 14
+ };
+ static const u8 chan_list_5ghz[] = {
+ 36, 38, 40, 42, 44, 46, 48,
+ 50, 52, 54, 56, 58, 60, 62,
+ 64, 100, 102, 104, 106, 108, 110,
+ 112, 114, 116, 118, 120, 122, 124,
+ 126, 128, 132, 134, 136, 138, 140,
+ 142, 144, 149, 151, 153, 155, 157,
+ 159, 161, 165
+ };
+ struct mt76_connac_sku_tlv sku_tlbv;
+ int i, n_chan, batch_size, idx = 0;
+ struct mt76_power_limits limits;
+ const u8 *ch_list;
+
+ sku_len = is_mt7921(dev) ? sizeof(sku_tlbv) : sizeof(sku_tlbv) - 92;
+
+ if (band == NL80211_BAND_2GHZ) {
+ n_chan = ARRAY_SIZE(chan_list_2ghz);
+ ch_list = chan_list_2ghz;
+ } else {
+ n_chan = ARRAY_SIZE(chan_list_5ghz);
+ ch_list = chan_list_5ghz;
+ }
+ batch_size = DIV_ROUND_UP(n_chan, batch_len);
+
+ for (i = 0; i < batch_size; i++) {
+ bool last_msg = i == batch_size - 1;
+ int num_ch = last_msg ? n_chan % batch_len : batch_len;
+ struct mt76_connac_tx_power_limit_tlv tx_power_tlv = {
+ .band = band == NL80211_BAND_2GHZ ? 1 : 2,
+ .n_chan = num_ch,
+ .last_msg = last_msg,
+ };
+ struct sk_buff *skb;
+ int j, err, msg_len;
+
+ msg_len = sizeof(tx_power_tlv) + num_ch * sizeof(sku_tlbv);
+ skb = mt76_mcu_msg_alloc(dev, NULL, msg_len);
+ if (!skb)
+ return -ENOMEM;
+
+ BUILD_BUG_ON(sizeof(dev->alpha2) > sizeof(tx_power_tlv.alpha2));
+ memcpy(tx_power_tlv.alpha2, dev->alpha2, sizeof(dev->alpha2));
+
+ skb_put_data(skb, &tx_power_tlv, sizeof(tx_power_tlv));
+ for (j = 0; j < num_ch; j++, idx++) {
+ struct ieee80211_channel chan = {
+ .hw_value = ch_list[idx],
+ .band = band,
+ };
+
+ mt76_get_rate_power_limits(phy, &chan, &limits, 127);
+
+ sku_tlbv.channel = ch_list[idx];
+ mt76_connac_mcu_build_sku(dev, sku_tlbv.pwr_limit,
+ &limits, band);
+ skb_put_data(skb, &sku_tlbv, sku_len);
+ }
+
+ err = mt76_mcu_skb_send_msg(dev, skb,
+ MCU_CMD_SET_RATE_TX_POWER, false);
+ if (err < 0)
+ return err;
+ }
+
+ return 0;
+}
+
+int mt76_connac_mcu_set_rate_txpower(struct mt76_phy *phy)
+{
+ int err;
+
+ err = mt76_connac_mcu_rate_txpower_band(phy, NL80211_BAND_2GHZ);
+ if (err < 0)
+ return err;
+
+ return mt76_connac_mcu_rate_txpower_band(phy, NL80211_BAND_5GHZ);
+}
+EXPORT_SYMBOL_GPL(mt76_connac_mcu_set_rate_txpower);
+
#ifdef CONFIG_PM
const struct wiphy_wowlan_support mt76_connac_wowlan_support = {
diff --git a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h
index 6f9b7807305a..01c458e14dc7 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h
+++ b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h
@@ -895,6 +895,28 @@ struct mt76_sta_cmd_info {
u8 rcpi;
};
+#define MT_SKU_POWER_LIMIT 161
+
+struct mt76_connac_sku_tlv {
+ u8 channel;
+ s8 pwr_limit[MT_SKU_POWER_LIMIT];
+} __packed;
+
+struct mt76_connac_tx_power_limit_tlv {
+ /* DW0 - common info*/
+ u8 ver;
+ u8 pad0;
+ __le16 len;
+ /* DW1 - cmd hint */
+ u8 n_chan; /* # channel */
+ u8 band; /* 2.4GHz - 5GHz */
+ u8 last_msg;
+ u8 pad1;
+ /* DW3 */
+ u8 alpha2[4]; /* regulatory_request.alpha2 */
+ u8 pad2[32];
+} __packed;
+
#define to_wcid_lo(id) FIELD_GET(GENMASK(7, 0), (u16)id)
#define to_wcid_hi(id) FIELD_GET(GENMASK(9, 8), (u16)id)
@@ -997,4 +1019,5 @@ void mt76_connac_mcu_set_suspend_iter(void *priv, u8 *mac,
int mt76_connac_mcu_chip_config(struct mt76_dev *dev);
void mt76_connac_mcu_coredump_event(struct mt76_dev *dev, struct sk_buff *skb,
struct mt76_connac_coredump *coredump);
+int mt76_connac_mcu_set_rate_txpower(struct mt76_phy *phy);
#endif /* __MT76_CONNAC_MCU_H */
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/init.c b/drivers/net/wireless/mediatek/mt76/mt7921/init.c
index 9046bbfc0690..fae3aa268eb6 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/init.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/init.c
@@ -58,12 +58,14 @@ mt7921_regd_notifier(struct wiphy *wiphy,
{
struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
struct mt7921_dev *dev = mt7921_hw_dev(hw);
+ struct mt7921_phy *phy = mt7921_hw_phy(hw);
memcpy(dev->mt76.alpha2, request->alpha2, sizeof(dev->mt76.alpha2));
dev->mt76.region = request->dfs_region;
mt7921_mutex_acquire(dev);
mt76_connac_mcu_set_channel_domain(hw->priv);
+ mt76_connac_mcu_set_rate_txpower(phy->mt76);
mt7921_mutex_release(dev);
}
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/main.c b/drivers/net/wireless/mediatek/mt76/mt7921/main.c
index 32b1cd0bca1f..e4801065a83c 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/main.c
@@ -186,6 +186,10 @@ int __mt7921_start(struct mt7921_phy *phy)
if (err)
return err;
+ err = mt76_connac_mcu_set_rate_txpower(phy->mt76);
+ if (err)
+ return err;
+
mt7921_mac_reset_counters(phy);
set_bit(MT76_STATE_RUNNING, &mphy->state);
--
2.30.2
