wifi: rtw88: Add rtw8723du chipset support

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

diff --git a/drivers/net/wireless/realtek/rtw88/Kconfig b/drivers/net/wireless/realtek/rtw88/Kconfig
index 138289bc5ad0cd6ba1df6e01186e6660b7cf9bab..651ab56d9c6bd51d074c8708f1e06aa310f48f9c 100644 (file)
--- a/drivers/net/wireless/realtek/rtw88/Kconfig
+++ b/drivers/net/wireless/realtek/rtw88/Kconfig
@@ -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

diff --git a/drivers/net/wireless/realtek/rtw88/Makefile b/drivers/net/wireless/realtek/rtw88/Makefile
index fe2dd90204a78a678b354abfed4e8f8e90f22855..fe7293ee87b45fd48876e08d9b880e58b83fd1b5 100644 (file)
--- a/drivers/net/wireless/realtek/rtw88/Makefile
+++ b/drivers/net/wireless/realtek/rtw88/Makefile
@@ -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
 

diff --git a/drivers/net/wireless/realtek/rtw88/rtw8723d.c b/drivers/net/wireless/realtek/rtw88/rtw8723d.c
index 0a4f770fcbb7e3456b6d47985b7b89b86b1803ee..2d2f768bae2ea2d00a28492a74916e3f90ee077d 100644 (file)
--- a/drivers/net/wireless/realtek/rtw88/rtw8723d.c
+++ b/drivers/net/wireless/realtek/rtw88/rtw8723d.c
@@ -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;
@@ -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;
@@ -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,
@@ -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,

diff --git a/drivers/net/wireless/realtek/rtw88/rtw8723d.h b/drivers/net/wireless/realtek/rtw88/rtw8723d.h
index 4641f6e047b41b74a8fc65525526ccdfa7ba9d4c..a356318a5c15b225ed05e5b2b3535ab167666281 100644 (file)
--- a/drivers/net/wireless/realtek/rtw88/rtw8723d.h
+++ b/drivers/net/wireless/realtek/rtw88/rtw8723d.h
@@ -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];
@@ -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;

diff --git a/drivers/net/wireless/realtek/rtw88/rtw8723du.c b/drivers/net/wireless/realtek/rtw88/rtw8723du.c
new file mode 100644 (file)
index 0000000..322a805
--- /dev/null
+++ b/drivers/net/wireless/realtek/rtw88/rtw8723du.c
@@ -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");