[Buildroot] [PATCH v4 1/1] package/rtl8821cu: new package

[Christian Stewart]

Adds support for USB rtl8821cu wifi cards.

Similar to rtl8821au and rtl8812au-aircrack-ng packages.

https://github.com/morrownr/8821cu-20210118

Signed-off-by: Christian Stewart <christian at paral.in>

---

v1 -> v2:

  - add myself to DEVELOPERS
  - bump to latest commit 615995
    - fixes build failure against the odroid xu4 kernel
  - simplify -Werror=date-time fix-patch
  - simplify makefile patches

v2 -> v3:

 - remove platform-specific checks

v3 -> v4:

 - fix setting USER_EXTRA_CFLAGS
 - unset PLATFORM_GENERIC
 - thanks for the suggestion from Giulio Benetti
 - https://patchwork.ozlabs.org/project/buildroot/patch/20221213203236.171656-1-giulio.benetti@benettiengineering.com/

Signed-off-by: Christian Stewart <christian at paral.in>
---
 DEVELOPERS                       |  1 +
 package/Config.in                |  1 +
 package/rtl8821cu/Config.in      | 10 ++++++++++
 package/rtl8821cu/rtl8821cu.hash |  3 +++
 package/rtl8821cu/rtl8821cu.mk   | 25 +++++++++++++++++++++++++
 5 files changed, 40 insertions(+)
 create mode 100644 package/rtl8821cu/Config.in
 create mode 100644 package/rtl8821cu/rtl8821cu.hash
 create mode 100644 package/rtl8821cu/rtl8821cu.mk

diff --git a/DEVELOPERS b/DEVELOPERS
index 3a0e3c14ab..9152b3321b 100644
--- a/DEVELOPERS
+++ b/DEVELOPERS
@@ -560,6 +560,7 @@ F:	package/mosh/
 F:	package/nerdctl/
 F:	package/pkg-golang.mk
 F:	package/rtl8821au/
+F:	package/rtl8821cu/
 F:	package/runc/
 F:	package/tini/
 F:	support/testing/tests/package/test_docker_compose.py
diff --git a/package/Config.in b/package/Config.in
index 914c3584e9..0ffb1654ec 100644
--- a/package/Config.in
+++ b/package/Config.in
@@ -587,6 +587,7 @@ endmenu
 	source "package/rtl8723ds/Config.in"
 	source "package/rtl8812au-aircrack-ng/Config.in"
 	source "package/rtl8821au/Config.in"
+	source "package/rtl8821cu/Config.in"
 	source "package/sane-backends/Config.in"
 	source "package/sdparm/Config.in"
 	source "package/sedutil/Config.in"
diff --git a/package/rtl8821cu/Config.in b/package/rtl8821cu/Config.in
new file mode 100644
index 0000000000..a5a7b9d255
--- /dev/null
+++ b/package/rtl8821cu/Config.in
@@ -0,0 +1,10 @@
+comment "rtl8821cu needs a Linux kernel to be built"
+	depends on !BR2_LINUX_KERNEL
+
+config BR2_PACKAGE_RTL8821CU
+	bool "rtl8821cu"
+	depends on BR2_LINUX_KERNEL
+	help
+	  rtl8821cu wifi driver
+
+	  https://github.com/brektrou/rtl8821CU
diff --git a/package/rtl8821cu/rtl8821cu.hash b/package/rtl8821cu/rtl8821cu.hash
new file mode 100644
index 0000000000..efb9871472
--- /dev/null
+++ b/package/rtl8821cu/rtl8821cu.hash
@@ -0,0 +1,3 @@
+# Locally calculated
+sha256  09b9fb4160003502d564d0d0d85d6f19b8b6d1627d1a339b3ddfca6a948d84fb  rtl8821cu-86cc5ceb7c28b9b997838e1c796847f6c395c382.tar.gz
+sha256  af54d00efc57cfce664171ac8be2a20c0f290b1b5c1a67bb2eba7b6380276c4e  LICENSE
diff --git a/package/rtl8821cu/rtl8821cu.mk b/package/rtl8821cu/rtl8821cu.mk
new file mode 100644
index 0000000000..18222e0014
--- /dev/null
+++ b/package/rtl8821cu/rtl8821cu.mk
@@ -0,0 +1,25 @@
+################################################################################
+#
+# rtl8821cu
+#
+################################################################################
+
+RTL8821CU_VERSION = 86cc5ceb7c28b9b997838e1c796847f6c395c382
+RTL8821CU_SITE = $(call github,morrownr,8821cu-20210118,$(RTL8821CU_VERSION))
+RTL8821CU_LICENSE = GPL-2.0
+RTL8821CU_LICENSE_FILES = LICENSE
+
+RTL8821CU_USER_EXTRA_CFLAGS = \
+	-DCONFIG_$(call qstrip,$(BR2_ENDIAN))_ENDIAN \
+	-DCONFIG_IOCTL_CFG80211 \
+	-DRTW_USE_CFG80211_STA_EVENT \
+	-Wno-error
+
+RTL8821CU_MODULE_MAKE_OPTS = \
+	CONFIG_PLATFORM_GENERIC=n \
+	CONFIG_RTL8821CU=m \
+	KVER=$(LINUX_VERSION_PROBED) \
+	USER_EXTRA_CFLAGS="$(RTL8821CU_USER_EXTRA_CFLAGS)"
+
+$(eval $(kernel-module))
+$(eval $(generic-package))
-- 
2.39.0