wifi: rtw89: rfk: add H2C command to trigger DPK

DPK is short for digital pre-distortion calibration. It can adjusts digital
waveform according to PA linear characteristics dynamically to enhance
TX EVM.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240202030642.108385-6-pkshih@realtek.com

diff --git a/drivers/net/wireless/realtek/rtw89/fw.c b/drivers/net/wireless/realtek/rtw89/fw.c
index f1239b00479dcbd47469dad163270f22cf5133ff..1218bab049c363021f8d1c1e1e4134c12ff454bf 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_dpk(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_dpk *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 DPK\n");
+               return -ENOMEM;
+       }
+       skb_put(skb, len);
+       h2c = (struct rtw89_h2c_rf_dpk *)skb->data;
+
+       h2c->len = len;
+       h2c->phy = phy_idx;
+       h2c->dpk_enable = true;
+       h2c->kpath = RF_AB;
+       h2c->cur_band = chan->band_type;
+       h2c->cur_bw = chan->band_width;
+       h2c->cur_ch = chan->channel;
+       h2c->dpk_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_DPK_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_rf_rxdck(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy_idx)
 {
        const struct rtw89_chan *chan = rtw89_chan_get(rtwdev,

diff --git a/drivers/net/wireless/realtek/rtw89/fw.h b/drivers/net/wireless/realtek/rtw89/fw.h
index 7e803abe47c632179f3c156693fdcab476d588f5..f48d21a772aa764d05a8a83942f0de7935e52d00 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_DPK_OFFLOAD = 0x3,
        H2C_FUNC_RFK_RXDCK_OFFLOAD = 0x6,
        H2C_FUNC_RFK_PRE_NOTIFY = 0x8,
 };
@@ -3989,6 +3990,17 @@ struct rtw89_h2c_rf_iqk {
        __le32 dbcc;
 } __packed;
 
+struct rtw89_h2c_rf_dpk {
+       u8 len;
+       u8 phy;
+       u8 dpk_enable;
+       u8 kpath;
+       u8 cur_band;
+       u8 cur_bw;
+       u8 cur_ch;
+       u8 dpk_dbg_en;
+} __packed;
+
 struct rtw89_h2c_rf_rxdck {
        u8 len;
        u8 phy;
@@ -4188,6 +4200,7 @@ 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_dpk(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,