Add support for rtl8821cu WiFi Dongle (#1899)

* Add rtl8821cu driver * buildroot ee56159464...666868435d (1): > Merge pull request #2 from s-ol/fix-usb_modeswitch-systemd * Add rtl8821cu support to all boards Signed-off-by: s-ol <[email protected]> Co-authored-by: Stefan Agner <[email protected]>
home-assistant · May 16, 2022 · e7e7c7a · e7e7c7a
1 parent a1261f8
commit e7e7c7a
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Showing 17 changed files with 60 additions and 1 deletion.
diff --git a/buildroot b/buildroot
diff --git a/buildroot-external/Config.in b/buildroot-external/Config.in
@@ -11,6 +11,7 @@ source "$BR2_EXTERNAL_HASSOS_PATH/package/qemu-guest-agent/Config.in"
 source "$BR2_EXTERNAL_HASSOS_PATH/package/rpi-eeprom/Config.in"
 source "$BR2_EXTERNAL_HASSOS_PATH/package/rpi-rf-mod/Config.in"
 source "$BR2_EXTERNAL_HASSOS_PATH/package/rtl88x2bu/Config.in"
+source "$BR2_EXTERNAL_HASSOS_PATH/package/rtl8821cu/Config.in"
 source "$BR2_EXTERNAL_HASSOS_PATH/package/tempio/Config.in.host"
 source "$BR2_EXTERNAL_HASSOS_PATH/package/udisks2/Config.in"
 source "$BR2_EXTERNAL_HASSOS_PATH/package/xe-guest-utilities/Config.in"
diff --git a/buildroot-external/configs/generic_aarch64_defconfig b/buildroot-external/configs/generic_aarch64_defconfig
@@ -117,5 +117,6 @@ BR2_PACKAGE_HASSIO_ARCH="aarch64"
 BR2_PACKAGE_HASSIO_MACHINE="qemuarm-64"
 BR2_PACKAGE_OS_AGENT=y
 BR2_PACKAGE_RPI_RF_MOD=y
+BR2_PACKAGE_RTL8821CU=y
 BR2_PACKAGE_HOST_TEMPIO=y
 BR2_PACKAGE_UDISKS2=y
diff --git a/buildroot-external/configs/generic_x86_64_defconfig b/buildroot-external/configs/generic_x86_64_defconfig
@@ -120,5 +120,6 @@ BR2_PACKAGE_HASSIO_MACHINE="generic-x86-64"
 BR2_PACKAGE_OS_AGENT=y
 BR2_PACKAGE_RPI_RF_MOD=y
 BR2_PACKAGE_RTL88X2BU=y
+BR2_PACKAGE_RTL8821CU=y
 BR2_PACKAGE_HOST_TEMPIO=y
 BR2_PACKAGE_UDISKS2=y
diff --git a/buildroot-external/configs/khadas_vim3_defconfig b/buildroot-external/configs/khadas_vim3_defconfig
@@ -111,5 +111,6 @@ BR2_PACKAGE_HASSIO_MACHINE="odroid-n2"
 BR2_PACKAGE_KHADAS_BOOT=y
 BR2_PACKAGE_OS_AGENT=y
 BR2_PACKAGE_RTL88X2BU=y
+BR2_PACKAGE_RTL8821CU=y
 BR2_PACKAGE_HOST_TEMPIO=y
 BR2_PACKAGE_UDISKS2=y
diff --git a/buildroot-external/configs/odroid_c2_defconfig b/buildroot-external/configs/odroid_c2_defconfig
@@ -113,5 +113,6 @@ BR2_PACKAGE_RPI_RF_MOD=y
 BR2_PACKAGE_RPI_RF_MOD_DTS=y
 BR2_PACKAGE_RPI_RF_MOD_DTS_ODROID-C2=y
 BR2_PACKAGE_RTL88X2BU=y
+BR2_PACKAGE_RTL8821CU=y
 BR2_PACKAGE_HOST_TEMPIO=y
 BR2_PACKAGE_UDISKS2=y
diff --git a/buildroot-external/configs/odroid_c4_defconfig b/buildroot-external/configs/odroid_c4_defconfig
@@ -112,5 +112,6 @@ BR2_PACKAGE_RPI_RF_MOD=y
 BR2_PACKAGE_RPI_RF_MOD_DTS=y
 BR2_PACKAGE_RPI_RF_MOD_DTS_ODROID-C4=y
 BR2_PACKAGE_RTL88X2BU=y
+BR2_PACKAGE_RTL8821CU=y
 BR2_PACKAGE_HOST_TEMPIO=y
 BR2_PACKAGE_UDISKS2=y
diff --git a/buildroot-external/configs/odroid_n2_defconfig b/buildroot-external/configs/odroid_n2_defconfig
@@ -114,5 +114,6 @@ BR2_PACKAGE_RPI_RF_MOD=y
 BR2_PACKAGE_RPI_RF_MOD_DTS=y
 BR2_PACKAGE_RPI_RF_MOD_DTS_ODROID-N2=y
 BR2_PACKAGE_RTL88X2BU=y
+BR2_PACKAGE_RTL8821CU=y
 BR2_PACKAGE_HOST_TEMPIO=y
 BR2_PACKAGE_UDISKS2=y
diff --git a/buildroot-external/configs/odroid_xu4_defconfig b/buildroot-external/configs/odroid_xu4_defconfig
@@ -114,5 +114,6 @@ BR2_PACKAGE_HASSIO_MACHINE="odroid-xu"
 BR2_PACKAGE_OS_AGENT=y
 BR2_PACKAGE_RPI_RF_MOD=y
 BR2_PACKAGE_RTL88X2BU=y
+BR2_PACKAGE_RTL8821CU=y
 BR2_PACKAGE_HOST_TEMPIO=y
 BR2_PACKAGE_UDISKS2=y
diff --git a/buildroot-external/configs/ova_defconfig b/buildroot-external/configs/ova_defconfig
@@ -120,6 +120,7 @@ BR2_PACKAGE_OS_AGENT=y
 BR2_PACKAGE_QEMU_GUEST_AGENT=y
 BR2_PACKAGE_RPI_RF_MOD=y
 BR2_PACKAGE_RTL88X2BU=y
+BR2_PACKAGE_RTL8821CU=y
 BR2_PACKAGE_HOST_TEMPIO=y
 BR2_PACKAGE_UDISKS2=y
 BR2_PACKAGE_XE_GUEST_UTILITIES=y
diff --git a/buildroot-external/configs/rpi3_64_defconfig b/buildroot-external/configs/rpi3_64_defconfig
@@ -117,5 +117,6 @@ BR2_PACKAGE_PI_BLUETOOTH=y
 BR2_PACKAGE_RPI_RF_MOD=y
 BR2_PACKAGE_RPI_RF_MOD_DTS=y
 BR2_PACKAGE_RTL88X2BU=y
+BR2_PACKAGE_RTL8821CU=y
 BR2_PACKAGE_HOST_TEMPIO=y
 BR2_PACKAGE_UDISKS2=y
diff --git a/buildroot-external/configs/rpi3_defconfig b/buildroot-external/configs/rpi3_defconfig
@@ -118,5 +118,6 @@ BR2_PACKAGE_PI_BLUETOOTH=y
 BR2_PACKAGE_RPI_RF_MOD=y
 BR2_PACKAGE_RPI_RF_MOD_DTS=y
 BR2_PACKAGE_RTL88X2BU=y
+BR2_PACKAGE_RTL8821CU=y
 BR2_PACKAGE_HOST_TEMPIO=y
 BR2_PACKAGE_UDISKS2=y
diff --git a/buildroot-external/configs/rpi4_64_defconfig b/buildroot-external/configs/rpi4_64_defconfig
@@ -119,5 +119,6 @@ BR2_PACKAGE_PI_BLUETOOTH=y
 BR2_PACKAGE_RPI_RF_MOD=y
 BR2_PACKAGE_RPI_RF_MOD_DTS=y
 BR2_PACKAGE_RTL88X2BU=y
+BR2_PACKAGE_RTL8821CU=y
 BR2_PACKAGE_HOST_TEMPIO=y
 BR2_PACKAGE_UDISKS2=y
diff --git a/buildroot-external/configs/rpi4_defconfig b/buildroot-external/configs/rpi4_defconfig
@@ -117,5 +117,6 @@ BR2_PACKAGE_PI_BLUETOOTH=y
 BR2_PACKAGE_RPI_RF_MOD=y
 BR2_PACKAGE_RPI_RF_MOD_DTS=y
 BR2_PACKAGE_RTL88X2BU=y
+BR2_PACKAGE_RTL8821CU=y
 BR2_PACKAGE_HOST_TEMPIO=y
 BR2_PACKAGE_UDISKS2=y
diff --git a/buildroot-external/package/rtl8821cu/0001-allow-arm-i386-external-control.patch b/buildroot-external/package/rtl8821cu/0001-allow-arm-i386-external-control.patch
@@ -0,0 +1,21 @@
+Makefile: expose platform variables
+
+Signed-off-by: s-ol <[email protected]>
+
+diff --git a/Makefile b/Makefile
+index 22bd0e0..72321a4 100755
+--- a/Makefile
++++ b/Makefile
+@@ -96,9 +96,9 @@
+ ###################### MP HW TX MODE FOR VHT #######################
+ CONFIG_MP_VHT_HW_TX_MODE = n
+ ###################### Platform Related #######################
+-CONFIG_PLATFORM_I386_PC = y
+-CONFIG_PLATFORM_ARM_RPI = n
+-CONFIG_PLATFORM_ARM64_RPI = n
++CONFIG_PLATFORM_I386_PC ?= n
++CONFIG_PLATFORM_ARM_RPI ?= n
++CONFIG_PLATFORM_ARM64_RPI ?= n
+ CONFIG_PLATFORM_ANDROID_X86 = n
+ CONFIG_PLATFORM_ANDROID_INTEL_X86 = n
+ CONFIG_PLATFORM_JB_X86 = n
diff --git a/buildroot-external/package/rtl8821cu/Config.in b/buildroot-external/package/rtl8821cu/Config.in
@@ -0,0 +1,5 @@
+config BR2_PACKAGE_RTL8821CU
+	tristate "Realtek 8821cu USB WiFi"
+	depends on BR2_LINUX_KERNEL
+	---help---
+	  Driver for RTL8821CU USB WiFi adapters (no firmware needed).
diff --git a/buildroot-external/package/rtl8821cu/rtl8821cu.mk b/buildroot-external/package/rtl8821cu/rtl8821cu.mk
@@ -0,0 +1,20 @@
+RTL8821CU_VERSION = 8c2226a74ae718439d56248bd2e44ccf717086d5
+RTL8821CU_SITE = $(call github,brektrou,rtl8821CU,$(RTL8821CU_VERSION))
+RTL8821CU_LICENSE = GPL-2.0
+RTL8821CU_LICENSE_FILES = LICENSE
+
+RTL8821CU_MODULE_MAKE_OPTS = \
+	CONFIG_RTL8821CU=m \
+	KVER=$(LINUX_VERSION_PROBED) \
+	KBASE=$(LINUX_DIR) \
+	CROSS_COMPILE=$(TARGET_CROSS)
+
+ifeq (arm, $(filter arm, $(KERNEL_ARCH)))
+RTL8821CU_MODULE_MAKE_OPTS += CONFIG_PLATFORM_ARM_RPI=y
+RTL8821CU_MODULE_MAKE_OPTS += CONFIG_PLATFORM_ARM64_RPI=y
+else
+RTL8821CU_MODULE_MAKE_OPTS += CONFIG_PLATFORM_I386_PC=y
+endif
+
+$(eval $(kernel-module))
+$(eval $(generic-package))