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wifi: rtw88: Add rtw8723du chipset support
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Add support for the rtw8723du chipset based on
https://github.com/ulli-kroll/rtw88-usb.git

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20221202081224.2779981-12-s.hauer@pengutronix.de
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Sascha Hauer authored and Kalle Valo committed Dec 8, 2022
1 parent 07cef03 commit 87caeef
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Showing 5 changed files with 90 additions and 1 deletion.
11 changes: 11 additions & 0 deletions drivers/net/wireless/realtek/rtw88/Kconfig
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Expand Up @@ -86,6 +86,17 @@ config RTW88_8723DE

802.11n PCIe wireless network adapter

config RTW88_8723DU
tristate "Realtek 8723DU USB wireless network adapter"
depends on USB
select RTW88_CORE
select RTW88_USB
select RTW88_8723D
help
Select this option will enable support for 8723DU chipset

802.11n USB wireless network adapter

config RTW88_8821CE
tristate "Realtek 8821CE PCI wireless network adapter"
depends on PCI
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3 changes: 3 additions & 0 deletions drivers/net/wireless/realtek/rtw88/Makefile
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Expand Up @@ -44,6 +44,9 @@ rtw88_8723d-objs := rtw8723d.o rtw8723d_table.o
obj-$(CONFIG_RTW88_8723DE) += rtw88_8723de.o
rtw88_8723de-objs := rtw8723de.o

obj-$(CONFIG_RTW88_8723DU) += rtw88_8723du.o
rtw88_8723du-objs := rtw8723du.o

obj-$(CONFIG_RTW88_8821C) += rtw88_8821c.o
rtw88_8821c-objs := rtw8821c.o rtw8821c_table.o

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28 changes: 28 additions & 0 deletions drivers/net/wireless/realtek/rtw88/rtw8723d.c
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Expand Up @@ -210,6 +210,12 @@ static void rtw8723de_efuse_parsing(struct rtw_efuse *efuse,
ether_addr_copy(efuse->addr, map->e.mac_addr);
}

static void rtw8723du_efuse_parsing(struct rtw_efuse *efuse,
struct rtw8723d_efuse *map)
{
ether_addr_copy(efuse->addr, map->u.mac_addr);
}

static int rtw8723d_read_efuse(struct rtw_dev *rtwdev, u8 *log_map)
{
struct rtw_efuse *efuse = &rtwdev->efuse;
Expand Down Expand Up @@ -239,6 +245,9 @@ static int rtw8723d_read_efuse(struct rtw_dev *rtwdev, u8 *log_map)
case RTW_HCI_TYPE_PCIE:
rtw8723de_efuse_parsing(efuse, map);
break;
case RTW_HCI_TYPE_USB:
rtw8723du_efuse_parsing(efuse, map);
break;
default:
/* unsupported now */
return -ENOTSUPP;
Expand Down Expand Up @@ -1945,6 +1954,24 @@ static void rtw8723d_pwr_track(struct rtw_dev *rtwdev)
dm_info->pwr_trk_triggered = false;
}

static void rtw8723d_fill_txdesc_checksum(struct rtw_dev *rtwdev,
struct rtw_tx_pkt_info *pkt_info,
u8 *txdesc)
{
size_t words = 32 / 2; /* calculate the first 32 bytes (16 words) */
__le16 chksum = 0;
__le16 *data = (__le16 *)(txdesc);

SET_TX_DESC_TXDESC_CHECKSUM(txdesc, 0x0000);

while (words--)
chksum ^= *data++;

chksum = ~chksum;

SET_TX_DESC_TXDESC_CHECKSUM(txdesc, __le16_to_cpu(chksum));
}

static struct rtw_chip_ops rtw8723d_ops = {
.phy_set_param = rtw8723d_phy_set_param,
.read_efuse = rtw8723d_read_efuse,
Expand All @@ -1965,6 +1992,7 @@ static struct rtw_chip_ops rtw8723d_ops = {
.config_bfee = NULL,
.set_gid_table = NULL,
.cfg_csi_rate = NULL,
.fill_txdesc_checksum = rtw8723d_fill_txdesc_checksum,

.coex_set_init = rtw8723d_coex_cfg_init,
.coex_set_ant_switch = NULL,
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13 changes: 12 additions & 1 deletion drivers/net/wireless/realtek/rtw88/rtw8723d.h
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Expand Up @@ -41,6 +41,14 @@ struct rtw8723de_efuse {
u8 sub_device_id[2];
};

struct rtw8723du_efuse {
u8 res4[48]; /* 0xd0 */
u8 vender_id[2]; /* 0x100 */
u8 product_id[2]; /* 0x102 */
u8 usb_option; /* 0x104 */
u8 mac_addr[ETH_ALEN]; /* 0x107 */
};

struct rtw8723d_efuse {
__le16 rtl_id;
u8 rsvd[2];
Expand Down Expand Up @@ -69,7 +77,10 @@ struct rtw8723d_efuse {
u8 rfe_option;
u8 country_code[2];
u8 res[3];
struct rtw8723de_efuse e;
union {
struct rtw8723de_efuse e;
struct rtw8723du_efuse u;
};
};

extern const struct rtw_chip_info rtw8723d_hw_spec;
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36 changes: 36 additions & 0 deletions drivers/net/wireless/realtek/rtw88/rtw8723du.c
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@@ -0,0 +1,36 @@
// 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 "rtw8723d.h"
#include "usb.h"

static const struct usb_device_id rtw_8723du_id_table[] = {
{ USB_DEVICE_AND_INTERFACE_INFO(RTW_USB_VENDOR_ID_REALTEK, 0xd723, 0xff, 0xff, 0xff),
.driver_info = (kernel_ulong_t)&(rtw8723d_hw_spec) }, /* 8723DU 1*1 */
{ USB_DEVICE_AND_INTERFACE_INFO(0x7392, 0xd611, 0xff, 0xff, 0xff),
.driver_info = (kernel_ulong_t)&(rtw8723d_hw_spec) }, /* Edimax EW-7611ULB V2 */
{ },
};
MODULE_DEVICE_TABLE(usb, rtw_8723du_id_table);

static int rtw8723du_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
return rtw_usb_probe(intf, id);
}

static struct usb_driver rtw_8723du_driver = {
.name = "rtw_8723du",
.id_table = rtw_8723du_id_table,
.probe = rtw8723du_probe,
.disconnect = rtw_usb_disconnect,
};
module_usb_driver(rtw_8723du_driver);

MODULE_AUTHOR("Hans Ulli Kroll <linux@ulli-kroll.de>");
MODULE_DESCRIPTION("Realtek 802.11n wireless 8723du driver");
MODULE_LICENSE("Dual BSD/GPL");

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