[PATCH 5/9] wifi: mt76: mt7921: add unified ROC cmd/event support
Lorenzo Bianconi
lorenzo at kernel.org
Wed Aug 17 00:15:43 PDT 2022
On Aug 16, Sean Wang wrote:
> From: Quan Zhou <quan.zhou at mediatek.com>
>
> Add unified ROC cmd/event which is only supported by the newer fw.
>
> Co-developed-by: Sean Wang <sean.wang at mediatek.com>
> Signed-off-by: Sean Wang <sean.wang at mediatek.com>
> Co-developed-by: Deren Wu <deren.wu at mediatek.com>
> Signed-off-by: Deren Wu <deren.wu at mediatek.com>
> Co-developed-by: Kaikai Hu <kaikai.hu at mediatek.com>
> Signed-off-by: Kaikai Hu <kaikai.hu at mediatek.com>
> Signed-off-by: Quan Zhou <quan.zhou at mediatek.com>
> ---
> .../wireless/mediatek/mt76/mt76_connac_mcu.h | 10 +-
> .../net/wireless/mediatek/mt76/mt7921/mcu.c | 119 ++++++++++++++++++
> .../wireless/mediatek/mt76/mt7921/mt7921.h | 19 +++
> 3 files changed, 147 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h
> index 1fcc3e8c5380..f3c1e1dc574a 100644
> --- a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h
> +++ b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h
> @@ -114,11 +114,15 @@ struct mt76_connac2_mcu_rxd {
>
> u8 eid;
> u8 seq;
> - u8 rsv[2];
> + u8 option;
> + u8 __rsv;
> +
nit: remove new line here and use 'u8 rsv' to be consistent with the rest of
the code.
>
> u8 ext_eid;
> u8 rsv1[2];
> u8 s2d_index;
> +
> + u8 tlv[0];
> };
>
> struct mt76_connac2_patch_hdr {
> @@ -938,6 +942,9 @@ enum {
> DEV_INFO_MAX_NUM
> };
>
> +#define MCU_UNI_CMD_EVENT BIT(1)
> +#define MCU_UNI_CMD_UNSOLICITED_EVENT BIT(2)
> +
> /* event table */
> enum {
> MCU_EVENT_TARGET_ADDRESS_LEN = 0x01,
> @@ -1144,6 +1151,7 @@ enum {
> MCU_UNI_CMD_OFFLOAD = 0x06,
> MCU_UNI_CMD_HIF_CTRL = 0x07,
> MCU_UNI_CMD_SNIFFER = 0x24,
> + MCU_UNI_CMD_ROC = 0x27,
> };
>
> enum {
> diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
> index da12d0ae0835..76c8afc00c24 100644
> --- a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
> +++ b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
> @@ -275,6 +275,23 @@ mt7921_mcu_rx_unsolicited_event(struct mt7921_dev *dev, struct sk_buff *skb)
> dev_kfree_skb(skb);
> }
>
> +static void
> +mt7921_mcu_uni_rx_unsolicited_event(struct mt7921_dev *dev,
> + struct sk_buff *skb)
> +{
> + struct mt76_connac2_mcu_rxd *rxd;
> +
> + rxd = (struct mt76_connac2_mcu_rxd *)skb->data;
> +
> + switch (rxd->eid) {
> + case MCU_UNI_EVENT_ROC:
> + break;
> + default:
> + break;
> + }
> + dev_kfree_skb(skb);
> +}
> +
> void mt7921_mcu_rx_event(struct mt7921_dev *dev, struct sk_buff *skb)
> {
> struct mt76_connac2_mcu_rxd *rxd;
> @@ -284,6 +301,11 @@ void mt7921_mcu_rx_event(struct mt7921_dev *dev, struct sk_buff *skb)
>
> rxd = (struct mt76_connac2_mcu_rxd *)skb->data;
>
> + if (rxd->option & MCU_UNI_CMD_UNSOLICITED_EVENT) {
> + mt7921_mcu_uni_rx_unsolicited_event(dev, skb);
> + return;
> + }
> +
> if (rxd->eid == 0x6) {
> mt76_mcu_rx_event(&dev->mt76, skb);
> return;
> @@ -521,6 +543,103 @@ int mt7921_mcu_set_tx(struct mt7921_dev *dev, struct ieee80211_vif *vif)
> &req_mu, sizeof(req_mu), false);
> }
>
> +int mt7921_mcu_set_roc(struct mt7921_phy *phy, struct mt7921_vif *vif,
> + struct ieee80211_channel *chan, int duration,
> + enum mt7921_roc_req type, u8 token_id)
> +{
> + int center_ch = ieee80211_frequency_to_channel(chan->center_freq);
> + struct mt7921_dev *dev = phy->dev;
> + struct {
> + struct {
> + u8 rsv[4];
> + } __packed hdr;
> + struct roc_acquire_tlv {
> + __le16 tag;
> + __le16 len;
> + u8 bss_idx;
> + u8 tokenid;
> + u8 control_channel;
> + u8 sco;
> + u8 band;
> + u8 bw;
> + u8 center_chan;
> + u8 center_chan2;
> + u8 bw_from_ap;
> + u8 center_chan_from_ap;
> + u8 center_chan2_from_ap;
> + u8 reqtype;
> + __le32 maxinterval;
> + u8 dbdcband;
> + u8 rsv[3];
> + } __packed roc;
> + } __packed req = {
> + .roc = {
> + .tag = cpu_to_le16(UNI_ROC_ACQUIRE),
> + .len = cpu_to_le16(sizeof(struct roc_acquire_tlv)),
> + .tokenid = token_id,
> + .reqtype = type,
> + .maxinterval = cpu_to_le32(duration),
> + .bss_idx = vif->mt76.idx,
> + .control_channel = chan->hw_value,
> + .bw = CMD_CBW_20MHZ,
> + .bw_from_ap = CMD_CBW_20MHZ,
> + .center_chan = center_ch,
> + .center_chan_from_ap = center_ch,
> + .dbdcband = 0xff, /* auto */
> + },
> + };
> +
> + if (chan->hw_value < center_ch)
> + req.roc.sco = 1; /* SCA */
> + else if (chan->hw_value > center_ch)
> + req.roc.sco = 3; /* SCB */
> +
> + switch (chan->band) {
> + case NL80211_BAND_6GHZ:
> + req.roc.band = 3;
> + break;
> + case NL80211_BAND_5GHZ:
> + req.roc.band = 2;
> + break;
> + default:
> + req.roc.band = 1;
> + break;
> + }
> +
> + return mt76_mcu_send_msg(&dev->mt76, MCU_UNI_CMD(ROC),
> + &req, sizeof(req), false);
> +}
> +
> +int mt7921_mcu_abort_roc(struct mt7921_phy *phy, struct mt7921_vif *vif,
> + u8 token_id)
> +{
> + struct mt7921_dev *dev = phy->dev;
> + struct {
> + struct {
> + u8 rsv[4];
> + } __packed hdr;
> + struct roc_abort_tlv {
> + __le16 tag;
> + __le16 len;
> + u8 bss_idx;
> + u8 tokenid;
> + u8 dbdcband;
> + u8 rsv[5];
> + } __packed abort;
> + } __packed req = {
> + .abort = {
> + .tag = cpu_to_le16(UNI_ROC_ABORT),
> + .len = cpu_to_le16(sizeof(struct roc_abort_tlv)),
> + .tokenid = token_id,
> + .bss_idx = vif->mt76.idx,
> + .dbdcband = 0xff, /* auto*/
> + },
> + };
> +
> + return mt76_mcu_send_msg(&dev->mt76, MCU_UNI_CMD(ROC),
> + &req, sizeof(req), false);
> +}
> +
> int mt7921_mcu_set_chan_info(struct mt7921_phy *phy, int cmd)
> {
> struct mt7921_dev *dev = phy->dev;
> diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h b/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h
> index c161031ac62a..c9044d546e94 100644
> --- a/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h
> +++ b/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h
> @@ -51,6 +51,20 @@
> #define MT7921_SDIO_HDR_TX_BYTES GENMASK(15, 0)
> #define MT7921_SDIO_HDR_PKT_TYPE GENMASK(17, 16)
>
> +#define MCU_UNI_EVENT_ROC 0x27
> +
> +enum {
> + UNI_ROC_ACQUIRE,
> + UNI_ROC_ABORT,
> + UNI_ROC_NUM
> +};
> +
> +enum mt7921_roc_req {
> + MT7921_ROC_REQ_JOIN,
> + MT7921_ROC_REQ_ROC,
> + MT7921_ROC_REQ_NUM
> +};
> +
> enum mt7921_sdio_pkt_type {
> MT7921_SDIO_TXD,
> MT7921_SDIO_DATA,
> @@ -479,4 +493,9 @@ mt7921_init_acpi_sar_power(struct mt7921_phy *phy, bool set_default)
> #endif
> int mt7921_set_tx_sar_pwr(struct ieee80211_hw *hw,
> const struct cfg80211_sar_specs *sar);
> +int mt7921_mcu_set_roc(struct mt7921_phy *phy, struct mt7921_vif *vif,
> + struct ieee80211_channel *chan, int duration,
> + enum mt7921_roc_req type, u8 token_id);
> +int mt7921_mcu_abort_roc(struct mt7921_phy *phy, struct mt7921_vif *vif,
> + u8 token_id);
> #endif
> --
> 2.25.1
>
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