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Subject: [PATCH 2/9] wifi: mt76: connac: add mt76_connac_mcu_uni_set_chctx
Date:   Tue, 16 Aug 2022 08:03:40 +0800
Message-ID: <57ebfc95640b3f062a1211bf939f9edfd9f58372.1660606893.git.objelf@gmail.com>
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From: Sean Wang <sean.wang@mediatek.com>

add mt76_connac_mcu_uni_set_chctx to set up the channel context per BSS
in the firmware

Signed-off-by: Sean Wang <sean.wang@mediatek.com>
---
 .../wireless/mediatek/mt76/mt76_connac_mcu.c  | 83 +++++++++++++++++++
 .../wireless/mediatek/mt76/mt76_connac_mcu.h  |  3 +
 2 files changed, 86 insertions(+)

diff --git a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c
index 0afcadce87fc..3d5c70765d4f 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c
@@ -1311,6 +1311,89 @@ mt76_connac_mcu_uni_bss_he_tlv(struct mt76_phy *phy, struct ieee80211_vif *vif,
 	he->max_nss_mcs[CMD_HE_MCS_BW8080] = cap->he_mcs_nss_supp.tx_mcs_80p80;
 }
 
+int mt76_connac_mcu_uni_set_chctx(struct mt76_phy *phy, struct mt76_vif *mvif,
+				  struct ieee80211_chanctx_conf *ctx)
+{
+	struct cfg80211_chan_def *chandef = ctx ? &ctx->def : &phy->chandef;
+	int freq1 = chandef->center_freq1, freq2 = chandef->center_freq2;
+	enum nl80211_band band = chandef->chan->band;
+	struct mt76_dev *mdev = phy->dev;
+
+	struct {
+		struct {
+			u8 bss_idx;
+			u8 pad[3];
+		} __packed hdr;
+		struct rlm_tlv {
+			__le16 tag;
+			__le16 len;
+			u8 control_channel;
+			u8 center_chan;
+			u8 center_chan2;
+			u8 bw;
+			u8 tx_streams;
+			u8 rx_streams;
+			u8 short_st;
+			u8 ht_op_info;
+			u8 sco;
+			u8 band;
+			u8 pad[2];
+		} __packed rlm;
+	} __packed rlm_req = {
+		.hdr = {
+			.bss_idx = mvif->idx,
+		},
+		.rlm = {
+			.tag = cpu_to_le16(UNI_BSS_INFO_RLM),
+			.len = cpu_to_le16(sizeof(struct rlm_tlv)),
+			.control_channel = chandef->chan->hw_value,
+			.center_chan = ieee80211_frequency_to_channel(freq1),
+			.center_chan2 = ieee80211_frequency_to_channel(freq2),
+			.tx_streams = hweight8(phy->antenna_mask),
+			.ht_op_info = 4, /* set HT 40M allowed */
+			.rx_streams = phy->chainmask,
+			.short_st = true,
+			.band = band,
+		},
+	};
+
+	switch (chandef->width) {
+	case NL80211_CHAN_WIDTH_40:
+		rlm_req.rlm.bw = CMD_CBW_40MHZ;
+		break;
+	case NL80211_CHAN_WIDTH_80:
+		rlm_req.rlm.bw = CMD_CBW_80MHZ;
+		break;
+	case NL80211_CHAN_WIDTH_80P80:
+		rlm_req.rlm.bw = CMD_CBW_8080MHZ;
+		break;
+	case NL80211_CHAN_WIDTH_160:
+		rlm_req.rlm.bw = CMD_CBW_160MHZ;
+		break;
+	case NL80211_CHAN_WIDTH_5:
+		rlm_req.rlm.bw = CMD_CBW_5MHZ;
+		break;
+	case NL80211_CHAN_WIDTH_10:
+		rlm_req.rlm.bw = CMD_CBW_10MHZ;
+		break;
+	case NL80211_CHAN_WIDTH_20_NOHT:
+	case NL80211_CHAN_WIDTH_20:
+	default:
+		rlm_req.rlm.bw = CMD_CBW_20MHZ;
+		rlm_req.rlm.ht_op_info = 0;
+		break;
+	}
+
+	if (rlm_req.rlm.control_channel < rlm_req.rlm.center_chan)
+		rlm_req.rlm.sco = 1; /* SCA */
+	else if (rlm_req.rlm.control_channel > rlm_req.rlm.center_chan)
+		rlm_req.rlm.sco = 3; /* SCB */
+
+	return mt76_mcu_send_msg(mdev, MCU_UNI_CMD(BSS_INFO_UPDATE), &rlm_req,
+				 sizeof(rlm_req), true);
+}
+EXPORT_SYMBOL_GPL(mt76_connac_mcu_uni_set_chctx);
+
 int mt76_connac_mcu_uni_add_bss(struct mt76_phy *phy,
 				struct ieee80211_vif *vif,
 				struct mt76_wcid *wcid,
diff --git a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h
index f1d7c05bd794..bf60b00d6020 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h
+++ b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h
@@ -1727,6 +1727,9 @@ int mt76_connac_mcu_uni_add_dev(struct mt76_phy *phy,
 int mt76_connac_mcu_sta_ba(struct mt76_dev *dev, struct mt76_vif *mvif,
 			   struct ieee80211_ampdu_params *params,
 			   int cmd, bool enable, bool tx);
+int mt76_connac_mcu_uni_set_chctx(struct mt76_phy *phy,
+				  struct mt76_vif *vif,
+				  struct ieee80211_chanctx_conf *ctx);
 int mt76_connac_mcu_uni_add_bss(struct mt76_phy *phy,
 				struct ieee80211_vif *vif,
 				struct mt76_wcid *wcid,
-- 
2.25.1