rtw89: 8852c: rfk: add DPK

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

Do this calibration when we are going to run on AP channel. To prevent
power offset out of boundary, it monitors thermal and set proper boundary
to register.

8852c needs two backup buffers, so we enlarge the array. But, 8852a still
needs only one, so it only uses first element (index zero).
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220502235408.15052-9-pkshih@realtek.com

drivers/net/wireless/realtek/rtw89/core.h

@@ -2690,6 +2690,7 @@ struct rtw89_dpk_bkup_para {
 	enum rtw89_bandwidth bw;
 	u8 ch;
 	bool path_ok;
+	u8 mdpd_en;
 	u8 txagc_dpk;
 	u8 ther_dpk;
 	u8 gs;
@@ -2699,11 +2700,12 @@ struct rtw89_dpk_bkup_para {
 struct rtw89_dpk_info {
 	bool is_dpk_enable;
 	bool is_dpk_reload_en;
-	u16 dc_i[RTW89_DPK_RF_PATH];
-	u16 dc_q[RTW89_DPK_RF_PATH];
-	u8 corr_val[RTW89_DPK_RF_PATH];
-	u8 corr_idx[RTW89_DPK_RF_PATH];
+	u16 dc_i[RTW89_DPK_RF_PATH][RTW89_DPK_BKUP_NUM];
+	u16 dc_q[RTW89_DPK_RF_PATH][RTW89_DPK_BKUP_NUM];
+	u8 corr_val[RTW89_DPK_RF_PATH][RTW89_DPK_BKUP_NUM];
+	u8 corr_idx[RTW89_DPK_RF_PATH][RTW89_DPK_BKUP_NUM];
 	u8 cur_idx[RTW89_DPK_RF_PATH];
+	u8 cur_k_set;
 	struct rtw89_dpk_bkup_para bp[RTW89_DPK_RF_PATH][RTW89_DPK_BKUP_NUM];
 };
 
@@ -2712,6 +2714,7 @@ struct rtw89_fem_info {
 	bool elna_5g;
 	bool epa_2g;
 	bool epa_5g;
+	bool epa_6g;
 };
 
 struct rtw89_phy_ch_info {

drivers/net/wireless/realtek/rtw89/reg.h

@@ -3191,6 +3191,7 @@
 #define B_AX_GNT_BT_TX_SW_CTRL BIT(0)
 
 #define RR_MOD 0x00
+#define RR_MOD_V1 0x10000
 #define RR_MOD_IQK GENMASK(19, 4)
 #define RR_MOD_DPK GENMASK(19, 5)
 #define RR_MOD_MASK GENMASK(19, 16)
@@ -3357,8 +3358,16 @@
 #define RR_DCK2_CYCLE GENMASK(7, 2)
 #define RR_DCKC 0x95
 #define RR_DCKC_CHK BIT(3)
+#define RR_IQGEN 0x97
+#define RR_IQGEN_BIAS GENMASK(11, 8)
+#define RR_TXIQK 0x98
+#define RR_TXIQK_ATT2 GENMASK(15, 12)
+#define RR_TIA 0x9e
+#define RR_TIA_N6 BIT(8)
 #define RR_MIXER 0x9f
 #define RR_MIXER_GN GENMASK(4, 3)
+#define RR_LOGEN 0xa3
+#define RR_LOGEN_RPT GENMASK(19, 16)
 #define RR_XTALX2 0xb8
 #define RR_MALSEL 0xbe
 #define RR_LCK_TRG 0xd3
@@ -3370,6 +3379,7 @@
 #define RR_RCKD_BW BIT(2)
 #define RR_TXADBG 0xde
 #define RR_LUTDBG 0xdf
+#define RR_LUTDBG_TIA BIT(12)
 #define RR_LUTDBG_LOK BIT(2)
 #define RR_LUTWE2 0xee
 #define RR_LUTWE2_RTXBW BIT(2)
@@ -3580,6 +3590,8 @@
 #define B_TXAGC_TP GENMASK(2, 0)
 #define R_TSSI_THER 0x1C10
 #define B_TSSI_THER GENMASK(29, 24)
+#define R_TXAGC_BTP 0x1CA0
+#define B_TXAGC_BTP GENMASK(31, 24)
 #define R_TXAGC_BB 0x1C60
 #define B_TXAGC_BB_OFT GENMASK(31, 16)
 #define B_TXAGC_BB GENMASK(31, 24)
@@ -3866,10 +3878,15 @@
 #define B_DPD_DIS BIT(14)
 #define B_DPD_GDIS BIT(13)
 #define B_IQK_RFC_ON BIT(1)
+#define R_TXPWRB 0x56CC
+#define B_TXPWRB_ON BIT(28)
+#define B_TXPWRB_VAL GENMASK(27, 19)
 #define R_DPD_OFT_EN 0x5800
 #define B_DPD_OFT_EN BIT(28)
 #define R_DPD_OFT_ADDR 0x5804
 #define B_DPD_OFT_ADDR GENMASK(31, 27)
+#define R_TXPWRB_H 0x580c
+#define B_TXPWRB_RDY BIT(15)
 #define R_P0_TMETER 0x5810
 #define B_P0_TMETER GENMASK(15, 10)
 #define B_P0_TMETER_DIS BIT(16)
@@ -3981,16 +3998,23 @@
 #define IQK_DF4_TXT_8_25MHZ 0x021
 #define R_IQK_CFG 0x8034
 #define B_IQK_CFG_SET GENMASK(5, 4)
+#define R_TPG_SEL 0x8068
 #define R_TPG_MOD 0x806C
 #define B_TPG_MOD_F GENMASK(2, 1)
 #define R_MDPK_SYNC 0x8070
 #define B_MDPK_SYNC_SEL BIT(31)
 #define B_MDPK_SYNC_MAN GENMASK(31, 28)
 #define R_MDPK_RX_DCK 0x8074
+#define B_MDPK_RX_DCK_EN BIT(31)
+#define R_KIP_MOD 0x8078
+#define B_KIP_MOD GENMASK(19, 0)
 #define R_NCTL_RW 0x8080
 #define R_KIP_SYSCFG 0x8088
 #define R_KIP_CLK 0x808C
+#define R_DPK_IDL 0x809C
+#define B_DPK_IDL BIT(8)
 #define R_LDL_NORM 0x80A0
+#define B_LDL_NORM_MA BIT(16)
 #define B_LDL_NORM_PN GENMASK(12, 8)
 #define B_LDL_NORM_OP GENMASK(1, 0)
 #define R_DPK_CTL 0x80B0
@@ -4001,12 +4025,19 @@
 #define B_DPK_CFG2_ST BIT(14)
 #define R_DPK_CFG3 0x80C0
 #define R_KPATH_CFG 0x80D0
+#define B_KPATH_CFG_ED GENMASK(21, 20)
 #define R_KIP_RPT1 0x80D4
 #define B_KIP_RPT1_SEL GENMASK(21, 16)
 #define R_SRAM_IQRX 0x80D8
 #define R_GAPK 0x80E0
 #define B_GAPK_ADR BIT(0)
 #define R_SRAM_IQRX2 0x80E8
+#define R_DPK_MPA 0x80EC
+#define B_DPK_MPA_T0 BIT(10)
+#define B_DPK_MPA_T1 BIT(9)
+#define B_DPK_MPA_T2 BIT(8)
+#define R_DPK_WR 0x80F4
+#define B_DPK_WR_ST BIT(29)
 #define R_DPK_TRK 0x80f0
 #define B_DPK_TRK_DIS BIT(31)
 #define R_RPT_COM 0x80FC
@@ -4014,8 +4045,11 @@
 #define B_PRT_COM_DCI GENMASK(27, 16)
 #define B_PRT_COM_CORV GENMASK(15, 8)
 #define B_PRT_COM_DCQ GENMASK(11, 0)
+#define B_PRT_COM_RXOV BIT(8)
 #define B_PRT_COM_GL GENMASK(7, 4)
 #define B_PRT_COM_CORI GENMASK(7, 0)
+#define B_PRT_COM_RXBB GENMASK(5, 0)
+#define B_PRT_COM_DONE BIT(0)
 #define R_COEF_SEL 0x8104
 #define B_COEF_SEL_IQC BIT(0)
 #define B_COEF_SEL_MDPD BIT(8)
@@ -4045,14 +4079,22 @@
 #define B_CFIR_LUT_G2 BIT(2)
 #define B_CFIR_LUT_GP_V1 GENMASK(2, 0)
 #define B_CFIR_LUT_GP GENMASK(1, 0)
+#define R_DPK_GN 0x819C
+#define B_DPK_GN_EN GENMASK(17, 16)
+#define B_DPK_GN_AG GENMASK(9, 0)
 #define R_DPD_V1 0x81a0
+#define B_DPD_LBK BIT(7)
 #define R_DPD_CH0 0x81AC
 #define R_DPD_BND 0x81B4
 #define R_DPD_CH0A 0x81BC
+#define B_DPD_MEN GENMASK(31, 28)
+#define B_DPD_ORDER GENMASK(26, 24)
+#define B_DPD_SEL GENMASK(13, 8)
 #define R_TXAGC_RFK 0x81C4
 #define B_TXAGC_RFK_CH0 GENMASK(5, 0)
 #define R_DPD_COM 0x81C8
 #define R_KIP_IQP 0x81CC
+#define B_KIP_IQP_SW GENMASK(13, 12)
 #define B_KIP_IQP_IQSW GENMASK(5, 0)
 #define R_KIP_RPT 0x81D4
 #define B_KIP_RPT_SEL GENMASK(21, 16)
@@ -4060,8 +4102,15 @@
 #define R_LOAD_COEF 0x81DC
 #define B_LOAD_COEF_MDPD BIT(16)
 #define B_LOAD_COEF_CFIR GENMASK(1, 0)
+#define B_LOAD_COEF_DI BIT(1)
 #define B_LOAD_COEF_AUTO BIT(0)
+#define R_DPK_GL 0x81F0
+#define B_DPK_GL_A0 GENMASK(31, 28)
+#define B_DPK_GL_A1 GENMASK(17, 0)
 #define R_RPT_PER 0x81FC
+#define B_RPT_PER_TSSI GENMASK(28, 16)
+#define B_RPT_PER_OF GENMASK(15, 8)
+#define B_RPT_PER_TH GENMASK(5, 0)
 #define R_RXCFIR_P0C0 0x8D40
 #define R_RXCFIR_P0C1 0x8D84
 #define R_RXCFIR_P0C2 0x8DC8

drivers/net/wireless/realtek/rtw89/rtw8852a_rfk.c

@@ -2189,8 +2189,8 @@ static bool _dpk_sync_check(struct rtw89_dev *rtwdev,
 		    "[DPK] S%d Corr_idx / Corr_val = %d / %d\n", path, corr_idx,
 		    corr_val);
 
-	dpk->corr_idx[path] = corr_idx;
-	dpk->corr_val[path] = corr_val;
+	dpk->corr_idx[path][0] = corr_idx;
+	dpk->corr_val[path][0] = corr_val;
 
 	rtw89_phy_write32_mask(rtwdev, R_KIP_RPT1, B_KIP_RPT1_SEL, 0x9);
 
@@ -2203,8 +2203,8 @@ static bool _dpk_sync_check(struct rtw89_dev *rtwdev,
 	rtw89_debug(rtwdev, RTW89_DBG_RFK, "[DPK] S%d DC I/Q, = %d / %d\n",
 		    path, dc_i, dc_q);
 
-	dpk->dc_i[path] = dc_i;
-	dpk->dc_q[path] = dc_q;
+	dpk->dc_i[path][0] = dc_i;
+	dpk->dc_q[path][0] = dc_q;
 
 	if (dc_i > DPK_SYNC_TH_DC_I || dc_q > DPK_SYNC_TH_DC_Q ||
 	    corr_val < DPK_SYNC_TH_CORR)

drivers/net/wireless/realtek/rtw89/rtw8852c.c

@@ -1789,6 +1789,7 @@ static void rtw8852c_rfk_channel(struct rtw89_dev *rtwdev)
 	rtw8852c_rx_dck(rtwdev, phy_idx, false);
 	rtw8852c_iqk(rtwdev, phy_idx);
 	rtw8852c_tssi(rtwdev, phy_idx);
+	rtw8852c_dpk(rtwdev, phy_idx);
 	rtw89_fw_h2c_rf_ntfy_mcc(rtwdev);
 }
 
@@ -1804,6 +1805,7 @@ static void rtw8852c_rfk_scan(struct rtw89_dev *rtwdev, bool start)
 
 static void rtw8852c_rfk_track(struct rtw89_dev *rtwdev)
 {
+	rtw8852c_dpk_track(rtwdev);
 	rtw8852c_lck_track(rtwdev);
 }
 

drivers/net/wireless/realtek/rtw89/rtw8852c_rfk.h

@@ -11,6 +11,8 @@ void rtw8852c_rck(struct rtw89_dev *rtwdev);
 void rtw8852c_dack(struct rtw89_dev *rtwdev);
 void rtw8852c_iqk(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy_idx);
 void rtw8852c_rx_dck(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy_idx, bool is_afe);
+void rtw8852c_dpk(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy);
+void rtw8852c_dpk_track(struct rtw89_dev *rtwdev);
 void rtw8852c_tssi(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy);
 void rtw8852c_tssi_scan(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy);
 void rtw8852c_tssi_cont_en_phyidx(struct rtw89_dev *rtwdev, bool en, u8 phy_idx);