Commit aff5ffd7 authored by Sascha Hauer's avatar Sascha Hauer Committed by Kalle Valo
Browse files

wifi: rtw88: Add rtw8821cu chipset support 

Add support for the rtw8821cu chipset based on
https://github.com/ulli-kroll/rtw88-usb.git



Signed-off-by: default avatarSascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: default avatarKalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20221202081224.2779981-9-s.hauer@pengutronix.de
parent a82dfd33

drivers/net/wireless/realtek/rtw88/Kconfig

+11 −0
Original line number Diff line number Diff line
@@ -75,6 +75,17 @@ config RTW88_8821CE 


	  802.11ac PCIe wireless network adapter



config RTW88_8821CU

	tristate "Realtek 8821CU USB wireless network adapter"

	depends on USB

	select RTW88_CORE

	select RTW88_USB

	select RTW88_8821C

	help

	  Select this option will enable support for 8821CU chipset



	  802.11ac USB wireless network adapter



config RTW88_DEBUG

	bool "Realtek rtw88 debug support"

	depends on RTW88_CORE

drivers/net/wireless/realtek/rtw88/Makefile

+3 −0
Original line number Diff line number Diff line
@@ -44,6 +44,9 @@ rtw88_8821c-objs := rtw8821c.o rtw8821c_table.o 
obj-$(CONFIG_RTW88_8821CE)	+= rtw88_8821ce.o

rtw88_8821ce-objs		:= rtw8821ce.o



obj-$(CONFIG_RTW88_8821CU)	+= rtw88_8821cu.o

rtw88_8821cu-objs		:= rtw8821cu.o



obj-$(CONFIG_RTW88_PCI)		+= rtw88_pci.o

rtw88_pci-objs			:= pci.o

drivers/net/wireless/realtek/rtw88/rtw8821c.c

+18 −0
Original line number Diff line number Diff line
@@ -26,6 +26,12 @@ static void rtw8821ce_efuse_parsing(struct rtw_efuse *efuse, 
	ether_addr_copy(efuse->addr, map->e.mac_addr);

}



static void rtw8821cu_efuse_parsing(struct rtw_efuse *efuse,

				    struct rtw8821c_efuse *map)

{

	ether_addr_copy(efuse->addr, map->u.mac_addr);

}



enum rtw8821ce_rf_set {

	SWITCH_TO_BTG,

	SWITCH_TO_WLG,
@@ -68,6 +74,9 @@ static int rtw8821c_read_efuse(struct rtw_dev *rtwdev, u8 *log_map) 
	case RTW_HCI_TYPE_PCIE:

		rtw8821ce_efuse_parsing(efuse, map);

		break;

	case RTW_HCI_TYPE_USB:

		rtw8821cu_efuse_parsing(efuse, map);

		break;

	default:

		/* unsupported now */

		return -ENOTSUPP;
@@ -1148,6 +1157,13 @@ static void rtw8821c_phy_cck_pd_set(struct rtw_dev *rtwdev, u8 new_lvl) 
			 dm_info->cck_pd_default + new_lvl * 2);

}



static void rtw8821c_fill_txdesc_checksum(struct rtw_dev *rtwdev,

					  struct rtw_tx_pkt_info *pkt_info,

					  u8 *txdesc)

{

	fill_txdesc_checksum_common(txdesc, 16);

}



static struct rtw_pwr_seq_cmd trans_carddis_to_cardemu_8821c[] = {

	{0x0086,

	 RTW_PWR_CUT_ALL_MSK,
@@ -1521,6 +1537,7 @@ static const struct rtw_rfe_def rtw8821c_rfe_defs[] = { 
	[2] = RTW_DEF_RFE_EXT(8821c, 0, 0, 2),

	[4] = RTW_DEF_RFE_EXT(8821c, 0, 0, 2),

	[6] = RTW_DEF_RFE(8821c, 0, 0),

	[34] = RTW_DEF_RFE(8821c, 0, 0),

};



static struct rtw_hw_reg rtw8821c_dig[] = {
@@ -1595,6 +1612,7 @@ static struct rtw_chip_ops rtw8821c_ops = { 
	.config_bfee		= rtw8821c_bf_config_bfee,

	.set_gid_table		= rtw_bf_set_gid_table,

	.cfg_csi_rate		= rtw_bf_cfg_csi_rate,

	.fill_txdesc_checksum	= rtw8821c_fill_txdesc_checksum,



	.coex_set_init		= rtw8821c_coex_cfg_init,

	.coex_set_ant_switch	= rtw8821c_coex_cfg_ant_switch,

drivers/net/wireless/realtek/rtw88/rtw8821c.h

+21 −0
Original line number Diff line number Diff line
@@ -9,6 +9,26 @@ 


#define RCR_VHT_ACK		BIT(26)



struct rtw8821cu_efuse {

	u8 res4[4];			/* 0xd0 */

	u8 usb_optional_function;

	u8 res5[0x1e];

	u8 res6[2];

	u8 serial[0x0b];		/* 0xf5 */

	u8 vid;				/* 0x100 */

	u8 res7;

	u8 pid;

	u8 res8[4];

	u8 mac_addr[ETH_ALEN];		/* 0x107 */

	u8 res9[2];

	u8 vendor_name[0x07];

	u8 res10[2];

	u8 device_name[0x14];

	u8 res11[0xcf];

	u8 package_type;		/* 0x1fb */

	u8 res12[0x4];

};



struct rtw8821ce_efuse {

	u8 mac_addr[ETH_ALEN];		/* 0xd0 */

	u8 vender_id[2];
@@ -73,6 +93,7 @@ struct rtw8821c_efuse { 
	u8 res[3];

	union {

		struct rtw8821ce_efuse e;

		struct rtw8821cu_efuse u;

	};

};

drivers/net/wireless/realtek/rtw88/rtw8821cu.c

0 → 100644
+50 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause

/* Copyright(c) 2018-2019  Realtek Corporation

 */



#include <linux/module.h>

#include <linux/usb.h>

#include "main.h"

#include "rtw8821c.h"

#include "usb.h"



static const struct usb_device_id rtw_8821cu_id_table[] = {

	{ USB_DEVICE_AND_INTERFACE_INFO(RTW_USB_VENDOR_ID_REALTEK, 0xb82b, 0xff, 0xff, 0xff),

	  .driver_info = (kernel_ulong_t)&(rtw8821c_hw_spec) }, /* 8821CU */

	{ USB_DEVICE_AND_INTERFACE_INFO(RTW_USB_VENDOR_ID_REALTEK, 0xb820, 0xff, 0xff, 0xff),

	  .driver_info = (kernel_ulong_t)&(rtw8821c_hw_spec) }, /* 8821CU */

	{ USB_DEVICE_AND_INTERFACE_INFO(RTW_USB_VENDOR_ID_REALTEK, 0xc821, 0xff, 0xff, 0xff),

	  .driver_info = (kernel_ulong_t)&(rtw8821c_hw_spec) }, /* 8821CU */

	{ USB_DEVICE_AND_INTERFACE_INFO(RTW_USB_VENDOR_ID_REALTEK, 0xc820, 0xff, 0xff, 0xff),

	  .driver_info = (kernel_ulong_t)&(rtw8821c_hw_spec) }, /* 8821CU */

	{ USB_DEVICE_AND_INTERFACE_INFO(RTW_USB_VENDOR_ID_REALTEK, 0xc82a, 0xff, 0xff, 0xff),

	  .driver_info = (kernel_ulong_t)&(rtw8821c_hw_spec) }, /* 8821CU */

	{ USB_DEVICE_AND_INTERFACE_INFO(RTW_USB_VENDOR_ID_REALTEK, 0xc82b, 0xff, 0xff, 0xff),

	  .driver_info = (kernel_ulong_t)&(rtw8821c_hw_spec) }, /* 8821CU */

	{ USB_DEVICE_AND_INTERFACE_INFO(RTW_USB_VENDOR_ID_REALTEK, 0xc811, 0xff, 0xff, 0xff),

	  .driver_info = (kernel_ulong_t)&(rtw8821c_hw_spec) }, /* 8811CU */

	{ USB_DEVICE_AND_INTERFACE_INFO(RTW_USB_VENDOR_ID_REALTEK, 0x8811, 0xff, 0xff, 0xff),

	  .driver_info = (kernel_ulong_t)&(rtw8821c_hw_spec) }, /* 8811CU */

	{ USB_DEVICE_AND_INTERFACE_INFO(RTW_USB_VENDOR_ID_REALTEK, 0x2006, 0xff, 0xff, 0xff),

	  .driver_info = (kernel_ulong_t)&(rtw8821c_hw_spec) }, /* TOTOLINK A650UA v3 */

	{},

};

MODULE_DEVICE_TABLE(usb, rtw_8821cu_id_table);



static int rtw_8821cu_probe(struct usb_interface *intf,

			    const struct usb_device_id *id)

{

	return rtw_usb_probe(intf, id);

}



static struct usb_driver rtw_8821cu_driver = {

	.name = "rtw_8821cu",

	.id_table = rtw_8821cu_id_table,

	.probe = rtw_8821cu_probe,

	.disconnect = rtw_usb_disconnect,

};

module_usb_driver(rtw_8821cu_driver);



MODULE_AUTHOR("Hans Ulli Kroll <linux@ulli-kroll.de>");

MODULE_DESCRIPTION("Realtek 802.11ac wireless 8821cu driver");

MODULE_LICENSE("Dual BSD/GPL");