wifi: rtw89: rfk: add H2C command to trigger RX DCK

RX DCK is receiver DC calibration. This will calibrate DC offset to
reflect correct received signal strength indicator, so mechanisms like CCA
can have normalized values.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240202030642.108385-5-pkshih@realtek.com

diff --git a/drivers/net/wireless/realtek/rtw89/fw.c b/drivers/net/wireless/realtek/rtw89/fw.c
index d2c166ee5c8978a5bfb9495a534f02c3fc51d060..f1239b00479dcbd47469dad163270f22cf5133ff 100644 (file)
--- a/drivers/net/wireless/realtek/rtw89/fw.c
+++ b/drivers/net/wireless/realtek/rtw89/fw.c
@@ -4628,6 +4628,49 @@ fail:
        return ret;
 }
 
+int rtw89_fw_h2c_rf_rxdck(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy_idx)
+{
+       const struct rtw89_chan *chan = rtw89_chan_get(rtwdev,
+                                                      RTW89_SUB_ENTITY_0);
+       struct rtw89_h2c_rf_rxdck *h2c;
+       u32 len = sizeof(*h2c);
+       struct sk_buff *skb;
+       int ret;
+
+       skb = rtw89_fw_h2c_alloc_skb_with_hdr(rtwdev, len);
+       if (!skb) {
+               rtw89_err(rtwdev, "failed to alloc skb for h2c RF RXDCK\n");
+               return -ENOMEM;
+       }
+       skb_put(skb, len);
+       h2c = (struct rtw89_h2c_rf_rxdck *)skb->data;
+
+       h2c->len = len;
+       h2c->phy = phy_idx;
+       h2c->is_afe = false;
+       h2c->kpath = RF_AB;
+       h2c->cur_band = chan->band_type;
+       h2c->cur_bw = chan->band_width;
+       h2c->cur_ch = chan->channel;
+       h2c->rxdck_dbg_en = rtw89_debug_is_enabled(rtwdev, RTW89_DBG_RFK);
+
+       rtw89_h2c_pkt_set_hdr(rtwdev, skb, FWCMD_TYPE_H2C,
+                             H2C_CAT_OUTSRC, H2C_CL_OUTSRC_RF_FW_RFK,
+                             H2C_FUNC_RFK_RXDCK_OFFLOAD, 0, 0, len);
+
+       ret = rtw89_h2c_tx(rtwdev, skb, false);
+       if (ret) {
+               rtw89_err(rtwdev, "failed to send h2c\n");
+               goto fail;
+       }
+
+       return 0;
+fail:
+       dev_kfree_skb_any(skb);
+
+       return ret;
+}
+
 int rtw89_fw_h2c_raw_with_hdr(struct rtw89_dev *rtwdev,
                              u8 h2c_class, u8 h2c_func, u8 *buf, u16 len,
                              bool rack, bool dack)

diff --git a/drivers/net/wireless/realtek/rtw89/fw.h b/drivers/net/wireless/realtek/rtw89/fw.h
index e9c7f9532b0b901ba360598dfe4e95a5017b4bcf..7e803abe47c632179f3c156693fdcab476d588f5 100644 (file)
--- a/drivers/net/wireless/realtek/rtw89/fw.h
+++ b/drivers/net/wireless/realtek/rtw89/fw.h
@@ -3936,6 +3936,7 @@ enum rtw89_mcc_h2c_func {
 
 enum rtw89_rfk_offload_h2c_func {
        H2C_FUNC_RFK_IQK_OFFLOAD = 0x1,
+       H2C_FUNC_RFK_RXDCK_OFFLOAD = 0x6,
        H2C_FUNC_RFK_PRE_NOTIFY = 0x8,
 };
 
@@ -3988,6 +3989,17 @@ struct rtw89_h2c_rf_iqk {
        __le32 dbcc;
 } __packed;
 
+struct rtw89_h2c_rf_rxdck {
+       u8 len;
+       u8 phy;
+       u8 is_afe;
+       u8 kpath;
+       u8 cur_band;
+       u8 cur_bw;
+       u8 cur_ch;
+       u8 rxdck_dbg_en;
+} __packed;
+
 enum rtw89_rf_log_type {
        RTW89_RF_RUN_LOG = 0,
        RTW89_RF_RPT_LOG = 1,
@@ -4176,6 +4188,7 @@ int rtw89_fw_h2c_rf_ntfy_mcc(struct rtw89_dev *rtwdev);
 int rtw89_fw_h2c_rf_pre_ntfy(struct rtw89_dev *rtwdev,
                             enum rtw89_phy_idx phy_idx);
 int rtw89_fw_h2c_rf_iqk(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy_idx);
+int rtw89_fw_h2c_rf_rxdck(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy_idx);
 int rtw89_fw_h2c_raw_with_hdr(struct rtw89_dev *rtwdev,
                              u8 h2c_class, u8 h2c_func, u8 *buf, u16 len,
                              bool rack, bool dack);