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wifi: mt76: mt7925: add MBMC event handling

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Handle MBMC unsolicited events from firmware to report the current MBMC
state. This helps validate MT7927 band setup.

Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Link: https://patch.msgid.link/20260425195011.790265-19-sean.wang@kernel.org
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Sean Wang 2026-04-25 14:50:08 -05:00 committed by Felix Fietkau
parent 05fd148853
commit bcc6e3358a
3 changed files with 34 additions and 1 deletions
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1
drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h
View File

@ -1069,6 +1069,7 @@ enum {
MCU_UNI_EVENT_SCAN_DONE = 0x0e,
MCU_UNI_EVENT_RDD_REPORT = 0x11,
MCU_UNI_EVENT_ROC = 0x27,
MCU_UNI_EVENT_MBMC = 0x28,
MCU_UNI_EVENT_TX_DONE = 0x2d,
MCU_UNI_EVENT_THERMAL = 0x35,
MCU_UNI_EVENT_RSSI_MONITOR = 0x41,

31
drivers/net/wireless/mediatek/mt76/mt7925/mcu.c
View File

@ -566,6 +566,34 @@ mt7925_mcu_uni_debug_msg_event(struct mt792x_dev *dev, struct sk_buff *skb)
}
}
static void
mt7925_mcu_handle_mbmc_event(struct mt792x_dev *dev, struct sk_buff *skb)
{
struct mbmc_conf_tlv *tlv;
u32 tlv_len;
skb_pull(skb, sizeof(struct mt7925_mcu_rxd) + 4);
tlv_len = skb->len;
tlv = (struct mbmc_conf_tlv *)skb->data;
while (tlv_len >= sizeof(*tlv) &&
le16_to_cpu(tlv->len) >= sizeof(*tlv) &&
le16_to_cpu(tlv->len) <= tlv_len) {
u16 tag = le16_to_cpu(tlv->tag);
if (tag == UNI_MBMC_SETTING || tag == UNI_MBMC_NO_RESP_SETTING) {
dev_dbg(dev->mt76.dev,
"MBMC event: tag=%u mbmc_en=%u\n",
tag, tlv->mbmc_en);
break;
}
tlv_len -= le16_to_cpu(tlv->len);
tlv = (struct mbmc_conf_tlv *)
((u8 *)tlv + le16_to_cpu(tlv->len));
}
}
static void
mt7925_mcu_uni_rx_unsolicited_event(struct mt792x_dev *dev,
struct sk_buff *skb)
@ -584,6 +612,9 @@ mt7925_mcu_uni_rx_unsolicited_event(struct mt792x_dev *dev,
case MCU_UNI_EVENT_ROC:
mt7925_mcu_uni_roc_event(dev, skb);
break;
case MCU_UNI_EVENT_MBMC:
mt7925_mcu_handle_mbmc_event(dev, skb);
break;
case MCU_UNI_EVENT_SCAN_DONE:
mt7925_mcu_scan_event(dev, skb);
return;

3
drivers/net/wireless/mediatek/mt76/mt7925/mcu.h
View File

@ -143,7 +143,8 @@ enum {
};
enum {
UNI_MBMC_SETTING,
UNI_MBMC_SETTING = 0,
UNI_MBMC_NO_RESP_SETTING = 1,
};
enum {