wifi: rtw89: 8852bx: add extra handles for 8852BT in 8852b_common

The channel configuration of 8852BT is very similar but a little different
to 8852B, so use chip ID as condition to add extra handles including
external loss compensation, ADC configurations, spur settings and so on.

Don't affect existing 8852BE.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://msgid.link/20240607070659.80263-3-pkshih@realtek.com

drivers/net/wireless/realtek/rtw89/Makefile

@@ -17,7 +17,8 @@ rtw89_core-y += core.o \
 		ps.o \
 		chan.o \
 		ser.o \
-		acpi.o
+		acpi.o \
+		util.o
 
 rtw89_core-$(CONFIG_PM) += wow.o
 

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

@@ -132,6 +132,7 @@ enum rtw89_hci_type {
 enum rtw89_core_chip_id {
 	RTL8852A,
 	RTL8852B,
+	RTL8852BT,
 	RTL8852C,
 	RTL8851B,
 	RTL8922A,

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

@@ -129,6 +129,7 @@
 #define EDCCA_HL_DIFF_NORMAL 8
 #define RSSI_UNIT_CONVER 110
 #define EDCCA_UNIT_CONVER 128
+#define EDCCA_PWROFST_DEFAULT 18
 
 enum rtw89_phy_c2h_ra_func {
 	RTW89_PHY_C2H_FUNC_STS_RPT,

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

@@ -7872,6 +7872,7 @@
 #define B_UPD_CLK_ADC_ON BIT(24)
 #define B_ENABLE_CCK BIT(5)
 #define R_RSTB_ASYNC 0x0704
+#define B_RSTB_ASYNC_BW80 GENMASK(9, 8)
 #define B_RSTB_ASYNC_ALL BIT(1)
 #define R_P0_ANT_SW 0x0728
 #define B_P0_HW_ANTSW_DIS_BY_GNT_BT BIT(12)
@@ -8379,6 +8380,7 @@
 #define B_CDD_EVM_CHK_EN BIT(0)
 #define R_PATH0_BAND_SEL_V1 0x4738
 #define B_PATH0_BAND_SEL_MSK_V1 BIT(17)
+#define B_PATH0_BAND_NRBW_EN_V1 BIT(16)
 #define R_PATH0_BT_SHARE_V1 0x4738
 #define B_PATH0_BT_SHARE_V1 BIT(19)
 #define R_PATH0_BTG_PATH_V1 0x4738
@@ -8422,6 +8424,7 @@
 #define B_PATH1_G_TIA1_LNA6_OP1DB_V1 GENMASK(15, 8)
 #define R_PATH1_BAND_SEL_V1 0x4AA4
 #define B_PATH1_BAND_SEL_MSK_V1 BIT(17)
+#define B_PATH1_BAND_NRBW_EN_V1 BIT(16)
 #define R_PATH1_BT_SHARE_V1 0x4AA4
 #define B_PATH1_BT_SHARE_V1 BIT(19)
 #define R_PATH1_BTG_PATH_V1 0x4AA4
@@ -8442,6 +8445,8 @@
 #define B_SEG0R_PD_SPATIAL_REUSE_EN_MSK_V1 BIT(30)
 #define B_SEG0R_PD_SPATIAL_REUSE_EN_MSK BIT(29)
 #define B_SEG0R_PD_LOWER_BOUND_MSK GENMASK(10, 6)
+#define R_PWOFST 0x488C
+#define B_PWOFST GENMASK(21, 17)
 #define R_2P4G_BAND 0x4970
 #define B_2P4G_BAND_SEL BIT(1)
 #define R_FC0_BW 0x4974
@@ -9095,6 +9100,7 @@
 #define R_ADCMOD 0xC0E8
 #define B_ADCMOD_LP GENMASK(31, 16)
 #define R_DCIM 0xC0EC
+#define B_DCIM_RC GENMASK(23, 16)
 #define B_DCIM_FR GENMASK(14, 13)
 #define R_ADDCK0D 0xC0F0
 #define B_ADDCK0D_VAL2 GENMASK(31, 26)

drivers/net/wireless/realtek/rtw89/rtw8852b_common.h

@@ -158,6 +158,7 @@ struct rtw8852bx_info {
 	void (*set_txpwr_ul_tb_offset)(struct rtw89_dev *rtwdev,
 				       s8 pw_ofst, enum rtw89_mac_idx mac_idx);
 	u8 (*get_thermal)(struct rtw89_dev *rtwdev, enum rtw89_rf_path rf_path);
+	void (*adc_cfg)(struct rtw89_dev *rtwdev, u8 bw, u8 path);
 };
 
 extern const struct rtw8852bx_info rtw8852bx_info;
@@ -336,4 +337,10 @@ u8 rtw8852bx_get_thermal(struct rtw89_dev *rtwdev, enum rtw89_rf_path rf_path)
 	return rtw8852bx_info.get_thermal(rtwdev, rf_path);
 }
 
+static inline
+void rtw8852bx_adc_cfg(struct rtw89_dev *rtwdev, u8 bw, u8 path)
+{
+	rtw8852bx_info.adc_cfg(rtwdev, bw, path);
+}
+
 #endif

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

+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+/* Copyright(c) 2024  Realtek Corporation
+ */
+
+#include "util.h"
+
+#define FRAC_ROWS 3
+#define FRAC_ROW_MAX (FRAC_ROWS - 1)
+#define NORM_ROW_MIN FRAC_ROWS
+
+static const u32 db_invert_table[12][8] = {
+	/* rows 0~2 in unit of U(32,3) */
+	{10, 13, 16, 20, 25, 32, 40, 50},
+	{64, 80, 101, 128, 160, 201, 256, 318},
+	{401, 505, 635, 800, 1007, 1268, 1596, 2010},
+	/* rows 3~11 in unit of U(32,0) */
+	{316, 398, 501, 631, 794, 1000, 1259, 1585},
+	{1995, 2512, 3162, 3981, 5012, 6310, 7943, 10000},
+	{12589, 15849, 19953, 25119, 31623, 39811, 50119, 63098},
+	{79433, 100000, 125893, 158489, 199526, 251189, 316228, 398107},
+	{501187, 630957, 794328, 1000000, 1258925, 1584893, 1995262, 2511886},
+	{3162278, 3981072, 5011872, 6309573, 7943282, 1000000, 12589254,
+	 15848932},
+	{19952623, 25118864, 31622777, 39810717, 50118723, 63095734, 79432823,
+	 100000000},
+	{125892541, 158489319, 199526232, 251188643, 316227766, 398107171,
+	 501187234, 630957345},
+	{794328235, 1000000000, 1258925412, 1584893192, 1995262315, 2511886432U,
+	 3162277660U, 3981071706U},
+};
+
+u32 rtw89_linear_2_db(u64 val)
+{
+	u8 i, j;
+	u32 dB;
+
+	for (i = 0; i < 12; i++) {
+		for (j = 0; j < 8; j++) {
+			if (i <= FRAC_ROW_MAX &&
+			    (val << RTW89_LINEAR_FRAC_BITS) <= db_invert_table[i][j])
+				goto cnt;
+			else if (i > FRAC_ROW_MAX && val <= db_invert_table[i][j])
+				goto cnt;
+		}
+	}
+
+	return 96; /* maximum 96 dB */
+
+cnt:
+	/* special cases */
+	if (j == 0 && i == 0)
+		goto end;
+
+	if (i == NORM_ROW_MIN && j == 0) {
+		if (db_invert_table[NORM_ROW_MIN][0] - val >
+		    val - (db_invert_table[FRAC_ROW_MAX][7] >> RTW89_LINEAR_FRAC_BITS)) {
+			i = FRAC_ROW_MAX;
+			j = 7;
+		}
+		goto end;
+	}
+
+	if (i <= FRAC_ROW_MAX)
+		val <<= RTW89_LINEAR_FRAC_BITS;
+
+	/* compare difference to get precise dB */
+	if (j == 0) {
+		if (db_invert_table[i][j] - val >
+		    val - db_invert_table[i - 1][7]) {
+			i--;
+			j = 7;
+		}
+	} else {
+		if (db_invert_table[i][j] - val >
+		    val - db_invert_table[i][j - 1]) {
+			j--;
+		}
+	}
+end:
+	dB = (i << 3) + j + 1;
+
+	return dB;
+}
+EXPORT_SYMBOL(rtw89_linear_2_db);
+
+u64 rtw89_db_2_linear(u32 db)
+{
+	u64 linear;
+	u8 i, j;
+
+	if (db > 96)
+		db = 96;
+	else if (db < 1)
+		return 1;
+
+	i = (db - 1) >> 3;
+	j = (db - 1) & 0x7;
+
+	linear = db_invert_table[i][j];
+
+	if (i >= NORM_ROW_MIN)
+		linear = linear << RTW89_LINEAR_FRAC_BITS;
+
+	return linear;
+}
+EXPORT_SYMBOL(rtw89_db_2_linear);

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

@@ -6,6 +6,8 @@
 
 #include "core.h"
 
+#define RTW89_LINEAR_FRAC_BITS 3
+
 #define rtw89_iterate_vifs_bh(rtwdev, iterator, data)                          \
 	ieee80211_iterate_active_interfaces_atomic((rtwdev)->hw,               \
 			IEEE80211_IFACE_ITER_NORMAL, iterator, data)
@@ -55,4 +57,7 @@ static inline void ether_addr_copy_mask(u8 *dst, const u8 *src, u8 mask)
 	}
 }
 
+u32 rtw89_linear_2_db(u64 linear);
+u64 rtw89_db_2_linear(u32 db);
+
 #endif