net: wireless: add build.mk to build the wl driver

It is extracted from build/core/tasks/kernel.mk.

diff --git a/drivers/net/wireless/wl/build.mk b/drivers/net/wireless/wl/build.mk
new file mode 100644 (file)
index 0000000..c8412bd
--- /dev/null
+++ b/drivers/net/wireless/wl/build.mk
@@ -0,0 +1,15 @@
+# parts of build/core/tasks/kernel.mk
+
+WL_ENABLED := $(if $(wildcard $(WL_PATH)),$(shell grep ^CONFIG_WL=[my] $(KERNEL_CONFIG_FILE)))
+WL_ARCH_CHANGED := $(if $(shell file $(WL_PATH)/lib/wlc_hybrid.o_shipped | grep -s $(if $(filter x86,$(TARGET_KERNEL_ARCH)),80386,x86-64)),,FORCE)
+WL_SRC := $(WL_PATH)/hybrid-v35$(if $(filter x86,$(TARGET_KERNEL_ARCH)),,_64)-nodebug-pcoem-6_30_223_271.tar.gz
+$(WL_SRC):
+       @echo Downloading $(@F)...
+       $(hide) curl http://www.broadcom.com/docs/linux_sta/$(@F) > $@
+
+$(WL_PATH)/Makefile : $(WL_SRC) $(wildcard $(WL_PATH)/*.patch) $(WL_ARCH_CHANGED) $(KERNEL_ARCH_CHANGED)
+       $(hide) tar zxf $< -C $(@D) --overwrite && \
+               patch -p5 -d $(@D) -i wl.patch && \
+               patch -p1 -d $(@D) -i linux-recent.patch
+
+$(INSTALLED_KERNEL_TARGET): $(if $(WL_ENABLED),$(WL_PATH)/Makefile)