rtl8821cu: build with mac80211

package/ctcgfw/rtl8821cu/Makefile

@@ -22,12 +22,15 @@ PKG_MIRROR_HASH:=0b0c12c69efa680481abc3a7703a1a224f7fcd6271f8eb3c038fbaef02945bf
 PKG_MAINTAINER:=[CTCGFW] Project OpenWrt
 PKG_BUILD_PARALLEL:=1
 
+STAMP_CONFIGURED_DEPENDS := $(STAGING_DIR)/usr/include/mac80211-backport/backport/autoconf.h
+
+include $(INCLUDE_DIR)/kernel.mk
 include $(INCLUDE_DIR)/package.mk
 
 define KernelPackage/rtl8821cu
   SUBMENU:=Wireless Drivers
   TITLE:=Realtek rtl8821cu Support
-  DEPENDS:=@BROKEN +@USB_SUPPORT +@DRIVER_11N_SUPPORT +@DRIVER_11AC_SUPPORT +kmod-mac80211 +kmod-usb-core
+  DEPENDS:=+kmod-cfg80211 +kmod-usb-core +@DRIVER_11N_SUPPORT +@DRIVER_11AC_SUPPORT
   FILES:=$(PKG_BUILD_DIR)/rtl8821cu.ko
   AUTOLOAD:=$(call AutoProbe,rtl8821cu)
   PROVIDES:=kmod-rtl8821cu
@@ -37,6 +40,15 @@ define KernelPackage/rtl8821cu/description
  Kernel module for rtl8821cu wireless module.
 endef
 
+NOSTDINC_FLAGS = \
+	-I$(PKG_BUILD_DIR) \
+	-I$(PKG_BUILD_DIR)/include \
+	-I$(STAGING_DIR)/usr/include/mac80211-backport \
+	-I$(STAGING_DIR)/usr/include/mac80211-backport/uapi \
+	-I$(STAGING_DIR)/usr/include/mac80211 \
+	-I$(STAGING_DIR)/usr/include/mac80211/uapi \
+	-include backport/backport.h
+
 EXTRA_KCONFIG:=\
 	CONFIG_RTL8821CU=m \
 	USER_MODULE_NAME=rtl8821cu
@@ -50,6 +62,7 @@ EXTRA_CFLAGS:= \
 	-DCONFIG_RADIO_WORK \
 	-DCONFIG_IOCTL_CFG80211 \
 	-DCONFIG_CONCURRENT_MODE \
+	-DBUILD_OPENWRT \
 
 ifeq ($(ARCH),arm)
 	EXTRA_CFLAGS += -mfloat-abi=softfp
@@ -62,6 +75,7 @@ endif
 MAKE_OPTS:= \
 	$(KERNEL_MAKE_FLAGS) \
 	M="$(PKG_BUILD_DIR)" \
+	NOSTDINC_FLAGS="$(NOSTDINC_FLAGS)" \
 	USER_EXTRA_CFLAGS="$(EXTRA_CFLAGS)" \
 	$(EXTRA_KCONFIG)
 

package/ctcgfw/rtl8821cu/patches/001-use-kernel-byteorder.patch

@@ -0,0 +1,15 @@
+Fix compile problem when rtw_byteorder.h and asm/byteorder.h gets 
+included in addition for example indirectly, do not use realtek own copy 
+of the byteorder headers.
+
+--- a/include/drv_types.h
++++ b/include/drv_types.h
+@@ -25,7 +25,7 @@
+ #include <drv_conf.h>
+ #include <basic_types.h>
+ #include <osdep_service.h>
+-#include <rtw_byteorder.h>
++#include <asm/byteorder.h>
+ #include <wlan_bssdef.h>
+ #include <wifi.h>
+ #include <ieee80211.h>

package/ctcgfw/rtl8821cu/patches/020-remove-iwreq.patch

@@ -0,0 +1,33 @@
+diff --git a/include/linux/wireless.h b/include/linux/wireless.h
+index c7f4a6c..f7ef486 100644
+--- a/include/linux/wireless.h
++++ b/include/linux/wireless.h
+@@ -18,10 +18,11 @@
+ 
+ /***************************** INCLUDES *****************************/
+ 
+-#if 0
++#if 1
+ 	#include <linux/types.h>		/* for __u* and __s* typedefs */
+ 	#include <linux/socket.h>		/* for "struct sockaddr" et al	*/
+ 	#include <linux/if.h>			/* for IFNAMSIZ and co... */
++	#include <uapi/linux/wireless.h>
+ #else
+ 	#define __user
+ 	/* typedef uint16_t	__u16; */
+@@ -37,6 +38,8 @@ struct compat_iw_point {
+ 	__u16 flags;
+ };
+ #endif
++
++#if 0
+ /* --------------------------- SUBTYPES --------------------------- */
+ /*
+  *	For all data larger than 16 octets, we need to use a
+@@ -83,5 +86,6 @@ struct	iwreq {
+ 	/* Data part (defined just above) */
+ 	union	iwreq_data	u;
+ };
++#endif
+ 
+ #endif	/* _LINUX_WIRELESS_H */

package/ctcgfw/rtl8821cu/patches/040-wireless-5.x.patch

@@ -0,0 +1,66 @@
+diff --git a/os_dep/linux/ioctl_cfg80211.c b/os_dep/linux/ioctl_cfg80211.c
+index c0df148..f74c426 100755
+--- a/os_dep/linux/ioctl_cfg80211.c
++++ b/os_dep/linux/ioctl_cfg80211.c
+@@ -7143,6 +7143,14 @@ exit:
+ 	return ret;
+ }
+ 
++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 8, 0)) || defined(BUILD_OPENWRT)
++static void cfg80211_rtw_update_mgmt_frame_registrations(struct wiphy *wiphy,
++						   struct wireless_dev *wdev,
++						   struct mgmt_frame_regs *upd)
++{
++
++}
++#else
+ static void cfg80211_rtw_mgmt_frame_register(struct wiphy *wiphy,
+ #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 6, 0))
+ 	struct wireless_dev *wdev,
+@@ -7186,6 +7194,7 @@ static void cfg80211_rtw_mgmt_frame_register(struct wiphy *wiphy,
+ exit:
+ 	return;
+ }
++#endif
+ 
+ #if defined(CONFIG_TDLS) && (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 2, 0))
+ static int cfg80211_rtw_tdls_mgmt(struct wiphy *wiphy,
+@@ -9457,7 +9466,11 @@ static struct cfg80211_ops rtw_cfg80211_ops = {
+ 
+ #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 37)) || defined(COMPAT_KERNEL_RELEASE)
+ 	.mgmt_tx = cfg80211_rtw_mgmt_tx,
++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,8,0)) || defined(BUILD_OPENWRT)
++	.update_mgmt_frame_registrations = cfg80211_rtw_update_mgmt_frame_registrations,
++#else
+ 	.mgmt_frame_register = cfg80211_rtw_mgmt_frame_register,
++#endif
+ #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 34) && LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 35))
+ 	.action = cfg80211_rtw_mgmt_tx,
+ #endif
+diff --git a/os_dep/linux/os_intfs.c b/os_dep/linux/os_intfs.c
+index c4b5157..cdb9388 100755
+--- a/os_dep/linux/os_intfs.c
++++ b/os_dep/linux/os_intfs.c
+@@ -1302,6 +1302,14 @@ unsigned int rtw_classify8021d(struct sk_buff *skb)
+ }
+ 
+ 
++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,19,0))
++static u16 rtw_select_queue(struct net_device *dev, struct sk_buff *skb
++    , struct net_device *sb_dev
++    #if (LINUX_VERSION_CODE < KERNEL_VERSION(5,2,0))
++    , select_queue_fallback_t fallback
++    #endif
++)
++#else
+ static u16 rtw_select_queue(struct net_device *dev, struct sk_buff *skb
+ #if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 13, 0)
+ 	, void *accel_priv
+@@ -1310,6 +1318,7 @@ static u16 rtw_select_queue(struct net_device *dev, struct sk_buff *skb
+ 	#endif
+ #endif
+ )
++#endif
+ {
+ 	_adapter	*padapter = rtw_netdev_priv(dev);
+ 	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;