rtw88: add BT co-existence support

Both RTL8822BE/RTL8822CE are WiFi + BT combo chips. Since
WiFi and BT use 2.4GHz to transmit, it is important to
make sure they run concurrently without interfering each
other. To achieve this, WiFi driver requires a mechanism
to collaborate with BT, whether they share the antenna(s)
or not.

The final decision made by the co-existence mechanism is
to choose a proper strategy, or called "tdma/table", and
inform either firmware or hardware of the strategy.
To choose a strategy, co-existence mechanism needs to
have enough information from WiFi and BT.

BT information is provided through firmware C2H.
The contents describe the current status of BT, such as
if BT is connected or is idle, or the profile that is
being used.

WiFi information can be provided by WiFi itself. The WiFi
driver will call various of "notify" functions each time
the state of WiFi changed, such as WiFi is going to switch
channel or is connected. Also WiFi driver can know if it
shares antenna with BT by reading efuse content. Antenna
configuration of the module will finally get a different
strategy.

Upon receiving any information from WiFi or BT, the WiFi
driver will run the co-existence mechanism immediately.
It will set the RF antenna configuration according to the
strategy through the TDMA H2C to firmware and a hardware
table. Based on the tdma/table, WiFi + BT should work with
each other, and having a better user experience.

Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

1 files changed, 62 insertions, 0 deletions

diff --git a/drivers/net/wireless/realtek/rtw88/reg.h b/drivers/net/wireless/realtek/rtw88/reg.h
index e2628f05812c..0bd0717baa8b 100644
--- a/drivers/net/wireless/realtek/rtw88/reg.h
+++ b/drivers/net/wireless/realtek/rtw88/reg.h
@@ -37,17 +37,28 @@
 
 #define REG_GPIO_MUXCFG		0x0040
 #define BIT_FSPI_EN		BIT(19)
+#define BIT_BT_AOD_GPIO3	BIT(9)
+#define BIT_BT_PTA_EN		BIT(5)
 #define BIT_WLRFE_4_5_EN	BIT(2)
 
 #define REG_LED_CFG		0x004C
 #define BIT_LNAON_SEL_EN	BIT(26)
 #define BIT_PAPE_SEL_EN		BIT(25)
+#define BIT_DPDT_WL_SEL		BIT(24)
+#define BIT_DPDT_SEL_EN		BIT(23)
 #define REG_PAD_CTRL1		0x0064
 #define BIT_PAPE_WLBT_SEL	BIT(29)
 #define BIT_LNAON_WLBT_SEL	BIT(28)
+#define BIT_BTGP_JTAG_EN	BIT(24)
+#define BIT_BTGP_SPI_EN		BIT(20)
+#define BIT_LED1DIS		BIT(15)
+#define BIT_SW_DPDT_SEL_DATA	BIT(0)
 #define REG_WL_BT_PWR_CTRL	0x0068
 #define BIT_BT_FUNC_EN		BIT(18)
 #define BIT_BT_DIG_CLK_EN	BIT(8)
+#define REG_SYS_SDIO_CTRL	0x0070
+#define BIT_DBG_GNT_WL_BT	BIT(27)
+#define BIT_LTE_MUX_CTRL_PATH	BIT(26)
 #define REG_HCI_OPT_CTRL	0x0074
 
 #define REG_MCUFW_CTRL		0x0080
@@ -70,6 +81,8 @@
 #define FW_READY_MASK		0xffff
 
 #define REG_WLRF1		0x00EC
+#define REG_WIFI_BT_INFO	0x00AA
+#define BIT_BT_INT_EN		BIT(15)
 #define REG_SYS_CFG1		0x00F0
 #define	BIT_RTL_ID		BIT(23)
 #define BIT_RF_TYPE_ID		BIT(27)
@@ -187,6 +200,7 @@
 #define REG_LIFETIME_EN		0x0426
 #define BIT_BA_PARSER_EN	BIT(5)
 #define REG_SPEC_SIFS		0x0428
+#define REG_RETRY_LIMIT		0x042a
 #define REG_DARFRC		0x0430
 #define REG_DARFRCH		0x0434
 #define REG_RARFRCH		0x043C
@@ -199,18 +213,25 @@
 #define REG_AMPDU_MAX_TIME_V1	0x0455
 #define REG_BCNQ1_BDNY_V1	0x0456
 #define REG_TX_HANG_CTRL	0x045E
+#define BIT_EN_GNT_BT_AWAKE	BIT(3)
 #define BIT_EN_EOF_V1		BIT(2)
 #define REG_DATA_SC		0x0483
 #define REG_ARFR4		0x049C
+#define BIT_WL_RFK		BIT(0)
 #define REG_ARFRH4		0x04A0
 #define REG_ARFR5		0x04A4
 #define REG_ARFRH5		0x04A8
 #define REG_SW_AMPDU_BURST_MODE_CTRL 0x04BC
 #define BIT_PRE_TX_CMD		BIT(6)
+#define REG_QUEUE_CTRL		0x04C6
+#define BIT_PTA_WL_TX_EN	BIT(4)
+#define BIT_PTA_EDCCA_EN	BIT(5)
 #define REG_PROT_MODE_CTRL	0x04C8
 #define REG_BAR_MODE_CTRL	0x04CC
 #define REG_PRECNT_CTRL		0x04E5
+#define BIT_BTCCA_CTRL		(BIT(0) | BIT(1))
 #define BIT_EN_PRECNT		BIT(11)
+#define REG_DUMMY_PAGE4_V1	0x04FC
 
 #define REG_EDCA_VO_PARAM	0x0500
 #define REG_EDCA_VI_PARAM	0x0504
@@ -297,11 +318,34 @@
 #define REG_RXFLTMAP0		0x06A0
 #define REG_RXFLTMAP1		0x06A2
 #define REG_RXFLTMAP2		0x06A4
+#define REG_BT_COEX_TABLE0	0x06C0
+#define REG_BT_COEX_TABLE1	0x06C4
+#define REG_BT_COEX_BRK_TABLE	0x06C8
+#define REG_BT_COEX_TABLE_H	0x06CC
+#define REG_BT_COEX_TABLE_H1	0x06CD
+#define REG_BT_COEX_TABLE_H2	0x06CE
+#define REG_BT_COEX_TABLE_H3	0x06CF
 #define REG_BBPSF_CTRL		0x06DC
 
+#define REG_BT_COEX_V2		0x0763
+#define BIT_GNT_BT_POLARITY	BIT(4)
+#define BIT_LTE_COEX_EN		BIT(7)
+#define REG_BT_STAT_CTRL	0x0778
+#define REG_BT_TDMA_TIME	0x0790
 #define REG_WMAC_OPTION_FUNCTION 0x07D0
 #define REG_WMAC_OPTION_FUNCTION_1 0x07D4
 
+#define REG_RX_GAIN_EN		0x081c
+
+#define REG_RFE_CTRL_E		0x0974
+
+#define REG_RFE_CTRL8		0x0cb4
+#define BIT_MASK_RFE_SEL89	GENMASK(7, 0)
+#define REG_RFE_INV8		0x0cbd
+#define BIT_MASK_RFE_INV89	GENMASK(1, 0)
+#define REG_RFE_INV16		0x0cbe
+#define BIT_RFE_BUF_EN		BIT(3)
+
 #define REG_ANAPAR_XTAL_0	0x1040
 #define REG_CPU_DMEM_CON	0x1080
 #define BIT_WL_PLATFORM_RST	BIT(16)
@@ -407,15 +451,33 @@
 #define LTECOEX_WRITE_DATA REG_WL2LTECOEX_INDIRECT_ACCESS_WRITE_DATA_V1
 #define LTECOEX_READ_DATA REG_WL2LTECOEX_INDIRECT_ACCESS_READ_DATA_V1
 
+#define REG_IGN_GNT_BT1	0x1860
+
+#define REG_RFESEL_CTRL	0x1990
+
+#define REG_NOMASK_TXBT	0x1ca7
+#define REG_ANAPAR	0x1c30
+#define BIT_ANAPAR_BTPS	BIT(22)
+#define REG_RSTB_SEL	0x1c38
+
+#define REG_IGN_GNTBT4	0x4160
+
+#define RF_MODOPT	0x01
 #define RF_DTXLOK	0x08
 #define RF_CFGCH	0x18
+#define RF_RCK		0x1d
 #define RF_LUTWA	0x33
 #define RF_LUTWD1	0x3e
 #define RF_LUTWD0	0x3f
 #define RF_XTALX2	0xb8
 #define RF_MALSEL	0xbe
+#define RF_RCKD		0xde
 #define RF_LUTDBG	0xdf
 #define RF_LUTWE2	0xee
 #define RF_LUTWE	0xef
 
+#define LTE_COEX_CTRL	0x38
+#define LTE_WL_TRX_CTRL	0xa0
+#define LTE_BT_TRX_CTRL	0xa4
+
 #endif