wifi: rtl8xxxu: Support new chip RTL8192FU

This is a newer chip, similar to the RTL8710BU in that it uses the same
PHY status structs.

Features: 2.4 GHz, b/g/n mode, 2T2R, 300 Mbps.

It can allegedly have Bluetooth, but that's not implemented here.

This chip can have many RFE (RF front end) types, of which types 1
and 5 are the only ones tested. Many of the other types need different
initialisation tables. They can be added if someone wants them.

The vendor driver v5.8.6.2_35538.20191028_COEX20190910-0d02 from
https://github.com/BrightX/rtl8192fu was used as reference, with
additional device IDs taken from
https://github.com/kelebek333/rtl8192fu-dkms.

The vendor driver also claims to support devices with ID 0bda:a725,
but that is found in some bluetooth-only devices, so it's not supported
here.
Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Reviewed-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/7dcf9fb9-1c97-ac28-5286-2236e287a18c@gmail.com

drivers/net/wireless/realtek/rtl8xxxu/Kconfig

@@ -11,7 +11,8 @@ config RTL8XXXU
 	  parts written to utilize the Linux mac80211 stack.
 	  The driver is known to work with a number of RTL8723AU,
 	  RL8188CU, RTL8188RU, RTL8191CU, RTL8192CU, RTL8723BU, RTL8192EU,
-	  RTL8188FU, RTL8188EU, and RTL8710BU (aka RTL8188GU) devices.
+	  RTL8188FU, RTL8188EU, RTL8710BU (aka RTL8188GU), and RTL8192FU
+	  devices.
 
 	  This driver is under development and has a limited feature
 	  set. In particular it does not yet support 40MHz channels

drivers/net/wireless/realtek/rtl8xxxu/Makefile

@@ -3,4 +3,4 @@ obj-$(CONFIG_RTL8XXXU)	+= rtl8xxxu.o
 
 rtl8xxxu-y	:= rtl8xxxu_core.o rtl8xxxu_8192e.o rtl8xxxu_8723b.o \
 		   rtl8xxxu_8723a.o rtl8xxxu_8192c.o rtl8xxxu_8188f.o \
-		   rtl8xxxu_8188e.o rtl8xxxu_8710b.o
+		   rtl8xxxu_8188e.o rtl8xxxu_8710b.o rtl8xxxu_8192f.o

drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h

@@ -39,6 +39,7 @@
 #define TX_TOTAL_PAGE_NUM_8188E		0xa9
 #define TX_TOTAL_PAGE_NUM_8192E		0xf3
 #define TX_TOTAL_PAGE_NUM_8723B		0xf7
+#define TX_TOTAL_PAGE_NUM_8192F		0xf7
 /* (HPQ + LPQ + NPQ + PUBQ) = TX_TOTAL_PAGE_NUM */
 #define TX_PAGE_NUM_PUBQ		0xe7
 #define TX_PAGE_NUM_HI_PQ		0x0c
@@ -65,6 +66,11 @@
 #define TX_PAGE_NUM_LO_PQ_8723B		0x02
 #define TX_PAGE_NUM_NORM_PQ_8723B	0x02
 
+#define TX_PAGE_NUM_PUBQ_8192F		0xde
+#define TX_PAGE_NUM_HI_PQ_8192F		0x08
+#define TX_PAGE_NUM_LO_PQ_8192F		0x08
+#define TX_PAGE_NUM_NORM_PQ_8192F	0x08
+
 #define RTL_FW_PAGE_SIZE		4096
 #define RTL8XXXU_FIRMWARE_POLL_MAX	1000
 
@@ -81,6 +87,7 @@
 #define EFUSE_REAL_CONTENT_LEN_8723A	512
 #define EFUSE_BT_MAP_LEN_8723A		1024
 #define EFUSE_MAX_WORD_UNIT		4
+#define EFUSE_UNDEFINED			0xff
 
 enum rtl8xxxu_rtl_chip {
 	RTL8192S = 0x81920,
@@ -105,6 +112,7 @@ enum rtl8xxxu_rtl_chip {
 	RTL8195A = 0x8195a,
 	RTL8188F = 0x8188f,
 	RTL8710B = 0x8710b,
+	RTL8192F = 0x8192f,
 };
 
 enum rtl8xxxu_rx_type {
@@ -1246,6 +1254,40 @@ struct rtl8710bu_efuse {
 	u8 res7[0x3c];
 } __packed;
 
+struct rtl8192fu_efuse {
+	__le16 rtl_id;
+	u8 res0[0x0e];
+	struct rtl8192eu_efuse_tx_power tx_power_index_A;	/* 0x10 */
+	struct rtl8192eu_efuse_tx_power tx_power_index_B;	/* 0x3a */
+	u8 res2[0x54];
+	u8 channel_plan;		/* 0xb8 */
+	u8 xtal_k;			/* 0xb9 */
+	u8 thermal_meter;		/* 0xba */
+	u8 iqk_lck;			/* 0xbb */
+	u8 pa_type;			/* 0xbc */
+	u8 lna_type_2g;			/* 0xbd */
+	u8 res3[1];
+	u8 lna_type_5g;			/* 0xbf */
+	u8 res4[1];
+	u8 rf_board_option;		/* 0xc1 */
+	u8 rf_feature_option;		/* 0xc2 */
+	u8 rf_bt_setting;		/* 0xc3 */
+	u8 eeprom_version;		/* 0xc4 */
+	u8 eeprom_customer_id;		/* 0xc5 */
+	u8 res5[3];
+	u8 rf_antenna_option;		/* 0xc9 */
+	u8 rfe_option;			/* 0xca */
+	u8 country_code;		/* 0xcb */
+	u8 res6[52];
+	u8 vid[2];			/* 0x100 */
+	u8 pid[2];			/* 0x102 */
+	u8 usb_optional_function;	/* 0x104 */
+	u8 res7[2];
+	u8 mac_addr[ETH_ALEN];		/* 0x107 */
+	u8 device_info[80];		/* 0x10d */
+	u8 res9[163];
+} __packed;
+
 struct rtl8xxxu_reg8val {
 	u16 reg;
 	u8 val;
@@ -1796,6 +1838,7 @@ struct rtl8xxxu_priv {
 	u32 cck_agc_report_type:1;
 	u32 cck_new_agc:1;
 	u8 default_crystal_cap;
+	u8 rfe_type;
 	unsigned int pipe_interrupt;
 	unsigned int pipe_in;
 	unsigned int pipe_out[TXDESC_QUEUE_MAX];
@@ -1835,6 +1878,7 @@ struct rtl8xxxu_priv {
 		struct rtl8188fu_efuse efuse8188fu;
 		struct rtl8188eu_efuse efuse8188eu;
 		struct rtl8710bu_efuse efuse8710bu;
+		struct rtl8192fu_efuse efuse8192fu;
 	} efuse_wifi;
 	u32 adda_backup[RTL8XXXU_ADDA_REGS];
 	u32 mac_backup[RTL8XXXU_MAC_REGS];
@@ -1943,6 +1987,7 @@ struct rtl8xxxu_fileops {
 	u8 init_reg_hmtfr:1;
 	u8 ampdu_max_time;
 	u8 ustime_tsf_edca;
+	u16 max_aggr_num;
 	u8 supports_ap:1;
 	u16 max_macid_num;
 	u32 adda_1t_init;
@@ -2031,6 +2076,7 @@ void rtl8xxxu_gen1_phy_iq_calibrate(struct rtl8xxxu_priv *priv);
 void rtl8xxxu_gen1_init_phy_bb(struct rtl8xxxu_priv *priv);
 void rtl8xxxu_gen1_set_tx_power(struct rtl8xxxu_priv *priv,
 				int channel, bool ht40);
+void rtl8188f_channel_to_group(int channel, int *group, int *cck_group);
 void rtl8188f_set_tx_power(struct rtl8xxxu_priv *priv,
 			   int channel, bool ht40);
 void rtl8xxxu_gen1_config_channel(struct ieee80211_hw *hw);
@@ -2095,6 +2141,7 @@ void rtl8xxxu_update_ra_report(struct rtl8xxxu_ra_report *rarpt,
 void rtl8188e_ra_info_init_all(struct rtl8xxxu_ra_info *ra);
 void rtl8188e_handle_ra_tx_report2(struct rtl8xxxu_priv *priv, struct sk_buff *skb);
 
+extern struct rtl8xxxu_fileops rtl8192fu_fops;
 extern struct rtl8xxxu_fileops rtl8710bu_fops;
 extern struct rtl8xxxu_fileops rtl8188fu_fops;
 extern struct rtl8xxxu_fileops rtl8188eu_fops;

drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188f.c

@@ -351,7 +351,7 @@ static int rtl8188fu_identify_chip(struct rtl8xxxu_priv *priv)
 	return ret;
 }
 
-static void rtl8188f_channel_to_group(int channel, int *group, int *cck_group)
+void rtl8188f_channel_to_group(int channel, int *group, int *cck_group)
 {
 	if (channel < 3)
 		*group = 0;
@@ -1748,6 +1748,7 @@ struct rtl8xxxu_fileops rtl8188fu_fops = {
 	.init_reg_hmtfr = 1,
 	.ampdu_max_time = 0x70,
 	.ustime_tsf_edca = 0x28,
+	.max_aggr_num = 0x0c14,
 	.supports_ap = 1,
 	.max_macid_num = 16,
 	.adda_1t_init = 0x03c00014,

drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8710b.c

@@ -1874,6 +1874,7 @@ struct rtl8xxxu_fileops rtl8710bu_fops = {
 	 * but in rtl8xxxu 0x50 causes slow upload and random packet loss. Why?
 	 */
 	.ustime_tsf_edca = 0x28,
+	.max_aggr_num = 0x0c14,
 	.adda_1t_init = 0x03c00016,
 	.adda_1t_path_on = 0x03c00016,
 	.trxff_boundary = 0x3f7f,

drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8723b.c

@@ -1741,6 +1741,7 @@ struct rtl8xxxu_fileops rtl8723bu_fops = {
 	.init_reg_hmtfr = 1,
 	.ampdu_max_time = 0x5e,
 	.ustime_tsf_edca = 0x50,
+	.max_aggr_num = 0x0c14,
 	.adda_1t_init = 0x01c00014,
 	.adda_1t_path_on = 0x01c00014,
 	.adda_2t_path_on_a = 0x01c00014,

drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_regs.h

@@ -67,6 +67,7 @@
 #define REG_SPS0_CTRL			0x0011
 #define REG_SPS_OCP_CFG			0x0018
 #define REG_8192E_LDOV12_CTRL		0x0014
+#define REG_SYS_SWR_CTRL2		0x0014
 #define REG_RSV_CTRL			0x001c
 #define  RSV_CTRL_WLOCK_1C		BIT(5)
 #define  RSV_CTRL_DIS_PRST		BIT(6)
@@ -215,6 +216,8 @@
 #define REG_HMBOX_EXT_2			0x008c
 #define REG_HMBOX_EXT_3			0x008e
 
+#define REG_RSVD_1			0x0097
+
 /* Interrupt registers for 8192e/8723bu/8812 */
 #define REG_HIMR0			0x00b0
 #define	 IMR0_TXCCK			BIT(30)	/* TXRPT interrupt when CCX bit
@@ -283,6 +286,7 @@
 #define REG_BIST_SCAN			0x00d0
 #define REG_BIST_RPT			0x00d4
 #define REG_BIST_ROM_RPT		0x00d8
+#define REG_RSVD_4			0x00dc
 #define REG_USB_SIE_INTF		0x00e0
 #define REG_PCIE_MIO_INTF		0x00e4
 #define REG_PCIE_MIO_INTD		0x00e8
@@ -390,6 +394,12 @@
 #define  TRXDMA_CTRL_BKQ_SHIFT		10
 #define  TRXDMA_CTRL_MGQ_SHIFT		12
 #define  TRXDMA_CTRL_HIQ_SHIFT		14
+#define  TRXDMA_CTRL_VOQ_SHIFT_8192F	4
+#define  TRXDMA_CTRL_VIQ_SHIFT_8192F	7
+#define  TRXDMA_CTRL_BEQ_SHIFT_8192F	10
+#define  TRXDMA_CTRL_BKQ_SHIFT_8192F	13
+#define  TRXDMA_CTRL_MGQ_SHIFT_8192F	16
+#define  TRXDMA_CTRL_HIQ_SHIFT_8192F	19
 #define  TRXDMA_QUEUE_LOW		1
 #define  TRXDMA_QUEUE_NORMAL		2
 #define  TRXDMA_QUEUE_HIGH		3
@@ -973,12 +983,18 @@
 #define  FPGA1_TX_OFDM_TXSC_MASK	0x30000000
 
 #define REG_ANT_MAPPING1		0x0914
+#define REG_RFE_OPT			0x0920
 #define REG_DPDT_CTRL			0x092c	/* 8723BU */
 #define REG_RFE_CTRL_ANTA_SRC		0x0930	/* 8723BU */
+#define REG_RFE_CTRL_ANT_SRC1		0x0934
+#define REG_RFE_CTRL_ANT_SRC2		0x0938
+#define REG_RFE_CTRL_ANT_SRC3		0x093c
 #define REG_RFE_PATH_SELECT		0x0940	/* 8723BU */
 #define REG_RFE_BUFFER			0x0944	/* 8723BU */
 #define REG_S0S1_PATH_SWITCH		0x0948	/* 8723BU */
+#define REG_RX_DFIR_MOD_97F		0x0948
 #define REG_OFDM_RX_DFIR		0x954
+#define REG_RFE_OPT62			0x0968
 
 #define REG_CCK0_SYSTEM			0x0a00
 #define  CCK0_SIDEBAND			BIT(4)
@@ -1038,6 +1054,8 @@
 
 #define REG_OFDM0_FA_RSTC		0x0c0c
 
+#define REG_DOWNSAM_FACTOR		0x0c10
+
 #define REG_OFDM0_XA_RX_AFE		0x0c10
 #define REG_OFDM0_XA_RX_IQ_IMBALANCE	0x0c14
 #define REG_OFDM0_XB_RX_IQ_IMBALANCE	0x0c1c
@@ -1074,6 +1092,8 @@
 /* 8188eu */
 #define REG_ANTDIV_PARA1		0x0ca4
 
+#define REG_RXIQB_EXT			0x0ca8
+
 /* 8723bu */
 #define REG_OFDM0_TX_PSDO_NOISE_WEIGHT	0x0ce4
 
@@ -1093,6 +1113,8 @@
 #define REG_OFDM1_CSI_FIX_MASK1		0x0d40
 #define REG_OFDM1_CSI_FIX_MASK2		0x0d44
 
+#define REG_ANAPWR1			0x0d94
+
 #define REG_TX_AGC_A_RATE18_06		0x0e00
 #define REG_TX_AGC_A_RATE54_24		0x0e04
 #define REG_TX_AGC_A_CCK1_MCS32		0x0e08
@@ -1101,6 +1123,10 @@
 #define REG_TX_AGC_A_MCS11_MCS08	0x0e18
 #define REG_TX_AGC_A_MCS15_MCS12	0x0e1c
 
+#define REG_NP_ANTA			0x0e20
+
+#define REG_TAP_UPD_97F			0x0e24
+
 #define REG_FPGA0_IQK			0x0e28
 
 #define REG_TX_IQK_TONE_A		0x0e30
@@ -1129,19 +1155,23 @@
 #define REG_RX_CCK			0x0e8c
 
 #define REG_TX_POWER_BEFORE_IQK_A	0x0e94
+#define REG_IQK_RPT_TXA			0x0e98
 #define REG_TX_POWER_AFTER_IQK_A	0x0e9c
 
 #define REG_RX_POWER_BEFORE_IQK_A	0x0ea0
 #define REG_RX_POWER_BEFORE_IQK_A_2	0x0ea4
 #define REG_RX_POWER_AFTER_IQK_A	0x0ea8
+#define REG_IQK_RPT_RXA			0x0ea8
 #define REG_RX_POWER_AFTER_IQK_A_2	0x0eac
 
 #define REG_TX_POWER_BEFORE_IQK_B	0x0eb4
+#define REG_IQK_RPT_TXB			0x0eb8
 #define REG_TX_POWER_AFTER_IQK_B	0x0ebc
 
 #define REG_RX_POWER_BEFORE_IQK_B	0x0ec0
 #define REG_RX_POWER_BEFORE_IQK_B_2	0x0ec4
 #define REG_RX_POWER_AFTER_IQK_B	0x0ec8
+#define REG_IQK_RPT_RXB			0x0ec8
 #define REG_RX_POWER_AFTER_IQK_B_2	0x0ecc
 
 #define REG_RX_OFDM			0x0ed0
@@ -1152,6 +1182,12 @@
 #define REG_PMPD_ANAEN			0x0eec
 
 #define REG_FW_START_ADDRESS		0x1000
+#define REG_FW_START_ADDRESS_8192F	0x4000
+
+#define REG_SW_GPIO_SHARE_CTRL_0	0x1038
+#define REG_SW_GPIO_SHARE_CTRL_1	0x103c
+#define REG_GPIO_A0			0x1050
+#define REG_GPIO_B0			0x105b
 
 #define REG_USB_INFO			0xfe17
 #define REG_USB_HIMR			0xfe38
@@ -1316,12 +1352,15 @@
 /*
  * NextGen regs: 8723BU
  */
+#define RF6052_REG_GAIN_P1		0x35
 #define RF6052_REG_T_METER_8723B	0x42
 #define RF6052_REG_UNKNOWN_43		0x43
 #define RF6052_REG_UNKNOWN_55		0x55
 #define RF6052_REG_UNKNOWN_56		0x56
+#define RF6052_REG_TXMOD		0x58
 #define RF6052_REG_RXG_MIX_SWBW		0x87
 #define RF6052_REG_S0S1			0xb0
 #define RF6052_REG_UNKNOWN_DF		0xdf
 #define RF6052_REG_UNKNOWN_ED		0xed
 #define RF6052_REG_WE_LUT		0xef
+#define RF6052_REG_GAIN_CTRL		0xf5