wifi: rtw88: Add support for the SDIO based RTL8821CS chipset

Wire up RTL8821CS chipset support using the new rtw88 SDIO HCI code as
well as the existing RTL8821C chipset code.

Reviewed-by: Ping-Ke Shih <pkshih@realtek.com>
Tested-by: Chris Morgan <macromorgan@hotmail.com>
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230405200729.632435-10-martin.blumenstingl@googlemail.com

diff --git a/drivers/net/wireless/realtek/rtw88/Kconfig b/drivers/net/wireless/realtek/rtw88/Kconfig
index 6b65da8..29eb2f8 100644 (file)
--- a/drivers/net/wireless/realtek/rtw88/Kconfig
+++ b/drivers/net/wireless/realtek/rtw88/Kconfig
@@ -133,6 +133,17 @@ config RTW88_8821CE
 
          802.11ac PCIe wireless network adapter
 
+config RTW88_8821CS
+       tristate "Realtek 8821CS SDIO wireless network adapter"
+       depends on MMC
+       select RTW88_CORE
+       select RTW88_SDIO
+       select RTW88_8821C
+       help
+         Select this option will enable support for 8821CS chipset
+
+         802.11ac SDIO wireless network adapter
+
 config RTW88_8821CU
        tristate "Realtek 8821CU USB wireless network adapter"
        depends on USB

diff --git a/drivers/net/wireless/realtek/rtw88/Makefile b/drivers/net/wireless/realtek/rtw88/Makefile
index 6105c27..82979b3 100644 (file)
--- a/drivers/net/wireless/realtek/rtw88/Makefile
+++ b/drivers/net/wireless/realtek/rtw88/Makefile
@@ -59,6 +59,9 @@ rtw88_8821c-objs              := rtw8821c.o rtw8821c_table.o
 obj-$(CONFIG_RTW88_8821CE)     += rtw88_8821ce.o
 rtw88_8821ce-objs              := rtw8821ce.o
 
+obj-$(CONFIG_RTW88_8821CS)     += rtw88_8821cs.o
+rtw88_8821cs-objs              := rtw8821cs.o
+
 obj-$(CONFIG_RTW88_8821CU)     += rtw88_8821cu.o
 rtw88_8821cu-objs              := rtw8821cu.o
 

diff --git a/drivers/net/wireless/realtek/rtw88/rtw8821cs.c b/drivers/net/wireless/realtek/rtw88/rtw8821cs.c
new file mode 100644 (file)
index 0000000..a359413
--- /dev/null
+++ b/drivers/net/wireless/realtek/rtw88/rtw8821cs.c
@@ -0,0 +1,36 @@
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+/* Copyright(c) Martin Blumenstingl <martin.blumenstingl@googlemail.com>
+ */
+
+#include <linux/mmc/sdio_func.h>
+#include <linux/mmc/sdio_ids.h>
+#include <linux/module.h>
+#include "main.h"
+#include "rtw8821c.h"
+#include "sdio.h"
+
+static const struct sdio_device_id rtw_8821cs_id_table[] =  {
+       {
+               SDIO_DEVICE(SDIO_VENDOR_ID_REALTEK,
+                           SDIO_DEVICE_ID_REALTEK_RTW8821CS),
+               .driver_data = (kernel_ulong_t)&rtw8821c_hw_spec,
+       },
+       {}
+};
+MODULE_DEVICE_TABLE(sdio, rtw_8821cs_id_table);
+
+static struct sdio_driver rtw_8821cs_driver = {
+       .name = "rtw_8821cs",
+       .probe = rtw_sdio_probe,
+       .remove = rtw_sdio_remove,
+       .id_table = rtw_8821cs_id_table,
+       .drv = {
+               .pm = &rtw_sdio_pm_ops,
+               .shutdown = rtw_sdio_shutdown,
+       }
+};
+module_sdio_driver(rtw_8821cs_driver);
+
+MODULE_AUTHOR("Martin Blumenstingl <martin.blumenstingl@googlemail.com>");
+MODULE_DESCRIPTION("Realtek 802.11ac wireless 8821cs driver");
+MODULE_LICENSE("Dual BSD/GPL");