#
# Copyright (C) 2007-2015 OpenWrt.org
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#

include $(TOPDIR)/rules.mk
include $(INCLUDE_DIR)/kernel.mk

PKG_NAME:=mac80211

PKG_VERSION:=6.1.24
PKG_RELEASE:=4
# PKG_SOURCE_URL:=@KERNEL/linux/kernel/projects/backports/stable/v5.15.58/
PKG_SOURCE_URL:=http://mirror2.openwrt.org/sources/
PKG_HASH:=5d39aca7e34c33cb9b3e366117b2e86841b7bdd37933679d6b1e61be6b150648

PKG_SOURCE:=backports-$(PKG_VERSION).tar.xz
PKG_BUILD_DIR:=$(KERNEL_BUILD_DIR)/backports-$(PKG_VERSION)
PKG_BUILD_PARALLEL:=1

PKG_MAINTAINER:=Felix Fietkau <nbd@nbd.name>

PKG_DRIVERS = \
	mac80211-hwsim

PKG_CONFIG_DEPENDS:= \
	CONFIG_PACKAGE_kmod-mac80211 \
	CONFIG_PACKAGE_CFG80211_TESTMODE \
	CONFIG_PACKAGE_MAC80211_DEBUGFS \
	CONFIG_PACKAGE_MAC80211_MESH \
	CONFIG_PACKAGE_MAC80211_TRACING

include $(INCLUDE_DIR)/package.mk

WMENU:=Wireless Drivers

define KernelPackage/mac80211/Default
  SUBMENU:=$(WMENU)
  URL:=https://wireless.wiki.kernel.org/
  MAINTAINER:=Felix Fietkau <nbd@nbd.name>
endef

config_package=$(if $(CONFIG_PACKAGE_kmod-$(1)),m)

config-y:= \
	WLAN \
	CFG80211_CERTIFICATION_ONUS \
	MAC80211_RC_MINSTREL \
	MAC80211_RC_MINSTREL_HT \
	MAC80211_RC_MINSTREL_VHT \
	MAC80211_RC_DEFAULT_MINSTREL \
	WLAN_VENDOR_ATH

config-$(call config_package,cfg80211) += CFG80211
config-$(CONFIG_PACKAGE_CFG80211_TESTMODE) += NL80211_TESTMODE

config-$(call config_package,mac80211) += MAC80211
config-$(CONFIG_PACKAGE_MAC80211_MESH) += MAC80211_MESH

include ath.mk

PKG_CONFIG_DEPENDS += \
	$(patsubst %,CONFIG_PACKAGE_kmod-%,$(PKG_DRIVERS))

define KernelPackage/cfg80211
  $(call KernelPackage/mac80211/Default)
  TITLE:=cfg80211 - wireless configuration API
  DEPENDS+= +iw +iwinfo +wireless-regdb +USE_RFKILL:kmod-rfkill
  ABI_VERSION:=$(PKG_VERSION)-$(PKG_RELEASE)
  FILES:= \
	$(PKG_BUILD_DIR)/compat/compat.ko \
	$(PKG_BUILD_DIR)/net/wireless/cfg80211.ko
endef

define KernelPackage/cfg80211/description
cfg80211 is the Linux wireless LAN (802.11) configuration API.
endef

define KernelPackage/cfg80211/config
  if PACKAGE_kmod-cfg80211

	config PACKAGE_CFG80211_TESTMODE
		bool "Enable testmode command support"
		default n
		help
		  This is typically used for tests and calibration during
		  manufacturing, or vendor specific debugging features

  endif
endef


define KernelPackage/mac80211
  $(call KernelPackage/mac80211/Default)
  TITLE:=Linux 802.11 Wireless Networking Stack
  # +kmod-crypto-cmac is a runtime only dependency of net/mac80211/aes_cmac.c
  DEPENDS+= +kmod-cfg80211 +kmod-crypto-cmac +kmod-crypto-ccm +kmod-crypto-gcm +hostapd-common
  KCONFIG:=\
	CONFIG_AVERAGE=y
  FILES:= $(PKG_BUILD_DIR)/net/mac80211/mac80211.ko
  ABI_VERSION:=$(PKG_VERSION)-$(PKG_RELEASE)
  MENU:=1
endef

define KernelPackage/mac80211/config
  if PACKAGE_kmod-mac80211

	config PACKAGE_MAC80211_DEBUGFS
		bool "Export mac80211 internals in DebugFS"
		select KERNEL_DEBUG_FS
		default y
		help
		  Select this to see extensive information about
		  the internal state of mac80211 in debugfs.

	config PACKAGE_MAC80211_TRACING
		bool "Enable tracing (mac80211 and supported drivers)"
		select KERNEL_FTRACE
		select KERNEL_ENABLE_DEFAULT_TRACERS
		default n
		help
		  Select this to enable tracing of mac80211 and
		  related wifi drivers (using trace-cmd).

	config PACKAGE_MAC80211_MESH
		bool "Enable 802.11s mesh support"
		default y

  endif
endef

define KernelPackage/mac80211/description
Generic IEEE 802.11 Networking Stack (mac80211)
endef

define KernelPackage/mac80211-hwsim
  $(call KernelPackage/mac80211/Default)
  TITLE:=mac80211 HW simulation device
  DEPENDS+= +kmod-mac80211 +@DRIVER_11AX_SUPPORT +@DRIVER_11AC_SUPPORT
  FILES:=$(PKG_BUILD_DIR)/drivers/net/wireless/mac80211_hwsim.ko
  AUTOLOAD:=$(call AutoProbe,mac80211_hwsim)
endef

ifdef CONFIG_PACKAGE_MAC80211_DEBUGFS
  config-y += \
	CFG80211_DEBUGFS \
	MAC80211_DEBUGFS
endif

ifdef CONFIG_PACKAGE_MAC80211_TRACING
  config-y += \
	IWLWIFI_DEVICE_TRACING
endif

config-$(call config_package,mac80211-hwsim) += MAC80211_HWSIM


config-$(CONFIG_LEDS_TRIGGERS) += MAC80211_LEDS

C_DEFINES=

ifeq ($(BUILD_VARIANT),smallbuffers)
	C_DEFINES+= -DCONFIG_ATH10K_SMALLBUFFERS
endif

MAKE_OPTS:= \
	$(subst -C $(LINUX_DIR),-C "$(PKG_BUILD_DIR)",$(KERNEL_MAKEOPTS)) \
	EXTRA_CFLAGS="-I$(PKG_BUILD_DIR)/include $(IREMAP_CFLAGS) $(C_DEFINES)" \
	KLIB_BUILD="$(LINUX_DIR)" \
	MODPROBE=true \
	KLIB=$(TARGET_MODULES_DIR) \
	KERNEL_SUBLEVEL=$(lastword $(subst ., ,$(KERNEL_PATCHVER))) \
	KBUILD_LDFLAGS_MODULE_PREREQ=

define ConfigVars
$(subst $(space),,$(foreach opt,$(config-$(1)),CPTCFG_$(opt)=$(1)
))
endef

define mac80211_config
$(call ConfigVars,m)$(call ConfigVars,y)
endef
$(eval $(call shexport,mac80211_config))

define Build/Prepare
	rm -rf $(PKG_BUILD_DIR)
	mkdir -p $(PKG_BUILD_DIR)
	$(PKG_UNPACK)
	$(Build/Patch)
	rm -rf \
		$(PKG_BUILD_DIR)/include/linux/ssb \
		$(PKG_BUILD_DIR)/include/linux/bcma \
		$(PKG_BUILD_DIR)/include/net/bluetooth

	rm -f \
		$(PKG_BUILD_DIR)/include/linux/cordic.h \
		$(PKG_BUILD_DIR)/include/linux/crc8.h \
		$(PKG_BUILD_DIR)/include/linux/eeprom_93cx6.h \
		$(PKG_BUILD_DIR)/include/linux/wl12xx.h \
		$(PKG_BUILD_DIR)/include/linux/mhi.h \
		$(PKG_BUILD_DIR)/include/net/ieee80211.h \
		$(PKG_BUILD_DIR)/backport-include/linux/bcm47xx_nvram.h

	echo 'compat-wireless-$(PKG_VERSION)-$(PKG_RELEASE)-$(REVISION)' > $(PKG_BUILD_DIR)/compat_version
endef

ifneq ($(CONFIG_PACKAGE_kmod-cfg80211),)
 define Build/Compile/kmod
	rm -rf $(PKG_BUILD_DIR)/modules
	+$(MAKE) $(PKG_JOBS) $(MAKE_OPTS) modules
 endef
endif

#do not Build/Configure for EXTERNAL KERNEL
ifeq ($(strip $(CONFIG_EXTERNAL_KERNEL_TREE)),"")
  ifeq ($(strip $(CONFIG_KERNEL_GIT_CLONE_URI)),"")
    define Build/Configure
	  cmp $(PKG_BUILD_DIR)/include/linux/ath9k_platform.h $(LINUX_DIR)/include/linux/ath9k_platform.h
	  cmp $(PKG_BUILD_DIR)/include/linux/ath5k_platform.h $(LINUX_DIR)/include/linux/ath5k_platform.h
    endef
  endif
endif

define Build/Patch
	$(if $(QUILT),rm -rf $(PKG_BUILD_DIR)/patches; mkdir -p $(PKG_BUILD_DIR)/patches)
	$(call PatchDir,$(PKG_BUILD_DIR),$(PATCH_DIR)/build,build/)
	$(call PatchDir,$(PKG_BUILD_DIR),$(PATCH_DIR)/subsys,subsys/)
	$(call PatchDir,$(PKG_BUILD_DIR),$(PATCH_DIR)/ath,ath/)
	$(call PatchDir,$(PKG_BUILD_DIR),$(PATCH_DIR)/ath5k,ath5k/)
	$(call PatchDir,$(PKG_BUILD_DIR),$(PATCH_DIR)/ath9k,ath9k/)
	$(if $(QUILT),touch $(PKG_BUILD_DIR)/.quilt_used)
endef

define Quilt/Refresh/Package
	$(call Quilt/RefreshDir,$(PKG_BUILD_DIR),$(PATCH_DIR)/build,build/)
	$(call Quilt/RefreshDir,$(PKG_BUILD_DIR),$(PATCH_DIR)/subsys,subsys/)
	$(call Quilt/RefreshDir,$(PKG_BUILD_DIR),$(PATCH_DIR)/ath,ath/)
	$(call Quilt/RefreshDir,$(PKG_BUILD_DIR),$(PATCH_DIR)/ath5k,ath5k/)
	$(call Quilt/RefreshDir,$(PKG_BUILD_DIR),$(PATCH_DIR)/ath9k,ath9k/)
endef

define Build/Compile
	$(SH_FUNC) var2file "$(call shvar,mac80211_config)" $(PKG_BUILD_DIR)/.config
	$(MAKE) $(MAKE_OPTS) allnoconfig
	$(call Build/Compile/kmod)
endef

define Build/InstallDev
	mkdir -p \
		$(1)/usr/include/mac80211 \
		$(1)/usr/include/mac80211-backport \
		$(1)/usr/include/mac80211/ath \
		$(1)/usr/include/net/mac80211
	$(CP) $(PKG_BUILD_DIR)/net/mac80211/*.h $(PKG_BUILD_DIR)/include/* $(1)/usr/include/mac80211/
	$(CP) $(PKG_BUILD_DIR)/backport-include/* $(1)/usr/include/mac80211-backport/
	$(CP) $(PKG_BUILD_DIR)/net/mac80211/rate.h $(1)/usr/include/net/mac80211/
	$(CP) $(PKG_BUILD_DIR)/drivers/net/wireless/ath/*.h $(1)/usr/include/mac80211/ath/
	rm -f $(1)/usr/include/mac80211-backport/linux/module.h
endef


define KernelPackage/cfg80211/install
	$(INSTALL_DIR) $(1)/lib/wifi $(1)/lib/netifd/wireless
	$(INSTALL_DATA) ./files/lib/wifi/mac80211.sh $(1)/lib/wifi
	$(INSTALL_BIN) ./files/lib/netifd/wireless/mac80211.sh $(1)/lib/netifd/wireless
	$(INSTALL_DIR) $(1)/etc/hotplug.d/ieee80211
	$(INSTALL_DATA) ./files/mac80211.hotplug $(1)/etc/hotplug.d/ieee80211/10-wifi-detect
endef

$(eval $(foreach drv,$(PKG_DRIVERS),$(call KernelPackage,$(drv))))
$(eval $(call KernelPackage,cfg80211))
$(eval $(call KernelPackage,mac80211))