# Targets specific for the NERF firmware
#

# this assumes that we've already made the edk2 things, via
# edk2.intermediate or something like that.
EDK2_DIR := $(build)/$(edk2_dir)/BaseTools/BinWrappers/PosixLike


# build/edk2-UDK2017/Build/MdeModule/DEBUG_GCC5/X64/MdeModulePkg/Core/Dxe/DxeMain/OUTPUT
# wtf edk2 doesn't hve a way to turn the inf file into an executable?
# this build system sucks

RuntimeArchProtocolGuid	:= b7dfb4e1-052f-449f-87be-9818fc91b733
AcpiTableProtocolGuid	:= FFE06BDD-6107-46A6-7BB2-5A9C7EC5275C
SmbiosProtocolGuid	:= 03583ff6-cb36-4940-947e-b9b39f4afaf7
VariableArchProtocolGuid := 1E5668E2-8481-11D4-BCF1-0080C73C8881


dxe-$(CONFIG_BUNDLE_DXE) += DxeCore
DxeCore-filetype := DXE_CORE
DxeCore-guid := D6A2CB7F-6A18-4E2F-B43B-9920A733700A 
#DxeCore-align := 1K

dxe-$(CONFIG_BUNDLE_DXE) += RuntimeDxe
RuntimeDxe-depex := TRUE
RuntimeDxe-guid := B601F8C4-43B7-4784-95B1-F4226CB40CEE

dxe-$(CONFIG_BUNDLE_DXE) += AcpiTableDxe
AcpiTableDxe-guid := 9622E42C-8E38-4a08-9E8F-54F784652F6B
AcpiTableDxe-depex := $(RuntimeArchProtocolGuid)

dxe-$(CONFIG_BUNDLE_DXE) += AcpiPlatform
AcpiPlatform-guid := cb933912-df8f-4305-b1f9-7b44fa11395c
AcpiPlatform-depex := \
	$(RuntimeArchProtocolGuid) \
	$(AcpiTableProtocolGuid) \

dxe-$(CONFIG_BUNDLE_DXE) += SmbiosDxe
SmbiosDxe-guid := F9D88642-0737-49BC-81B5-6889CD57D9EA
SmbiosDxe-depex := $(RuntimeArchProtocolGuid)

# the VariableStore doesn't work with most vendor firmwares for some reason.
# instead we link in the EmuRuntimeDxe, which avoids the 
dxe-n += VariableRuntimeDxe
VariableRuntimeDxe-guid := CBD2E4D5-7068-4FF5-B462-9822B4AD8D60
VariableRuntimeDxe-depex := $(RuntimeArchProtocolGuid)
dxe-$(CONFIG_BUNDLE_DXE) += EmuVariableRuntimeDxe
EmuVariableRuntimeDxe-guid := CBD2E4D5-7068-4FF5-B462-9822B4AD8D60
EmuVariableRuntimeDxe-depex := $(RuntimeArchProtocolGuid)


#dxe-y += Acpi-data
Acpi-data-file := /dev/null
Acpi-data-guid := 7E374E25-8E01-4FEE-87F2-390C23C606CD
Acpi-data-filetype := FREEFORM
Acpi-data.ffs: $(sort blobs/$(BOARD)/acpi/*)
	./create-ffs \
		-o $@ \
		-g $(Acpi-data-guid) \
		-t FREEFORM \
		$^


dxe-y += Linux
Linux-file := $(build)/$(linux_dir)/arch/x86/boot/bzImage
Linux-version := $(linux-version)
Linux-guid := DECAFBAD-6548-6461-732d-2f2d4e455246
Linux-depex := \
	$(RuntimeArchProtocolGuid) \
	$(AcpiTableProtocolGuid) \
	$(SmbiosProtocolGuid) \
	$(VariableArchProtocolGuid) \


dxe-y += Initrd
Initrd-file := initrd.cpio.xz
Initrd-filetype := FREEFORM
Initrd-guid := 74696e69-6472-632e-7069-6f2f62696f73

#$(build)/$(linux_dir)/arch/x86/boot/bzImage: linux.intermediate


define build-ffs =
$1.ffs: $(or $($1-file),$(build)/$(edk2_dir)/Build/MdeModule/DEBUG_GCC5/X64/$1.efi)
	./create-ffs \
		-o "$1.ffs" \
		-g $($1-guid) \
		-t $(or $($1-filetype),DRIVER) \
		-n "$1" \
		-v "$(or $($1-version),0.1)" \
		-d "$($1-depex)" \
		$$^


# add a dependency on the edk2 module if we are picking up an
# edk2 build DXEexecutable.
ifndef $($1-file)
$(build)/$(edk2_dir)/Build/MdeModule/DEBUG_GCC5/X64/$1.efi: edk2.intermediate
endif

endef

# For everything that we will include in our DXE filesystem, we
# have to instatiate targets for the ffs and file sections.
# If there is no DEPEX defined, do not create a depex file dependency
$(call map,build-ffs,$(dxe-y))

$(build)/$(linux_dir)/arch/x86/boot/bzImage: linux.intermediate


# Generate a firmware file with a well known guid

# If you have to fit within the normal UEFI image, the volume is
# limited to 0x47 blocks.
#
# But you can also replace the entire region from 0x310000
# up to PEI at 0xE40000, which leaves us almost 11 MB of space.
#
# x3550m5 -- pei starts at 0xb00000, bios is from 0x1000 == 0xaff
nerf.vol: $(addsuffix .ffs,$(dxe-y)) Acpi-data.ffs  # blobs/r630/acpi-data.ffs.uncompressed
	$(EDK2_DIR)/GenFv \
		--numberblock $$[$(NERF_SIZE)/0x1000] \
		--blocksize 0x1000 \
		--FvNameGuid 4652454e-482f-6165-6473-2f4c696e7578 \
		-o $@ \
		$(addprefix -f ,$^)
	@head -2 $@.txt
	-$(RM) $@.txt $@.map

# You must provide your own r630.rom as input for the ME and PEI sections.
# the ifd is only the first 64k, but we take all the way to the ME region
# and unlock the IFD (from coreboot) to allow flashrom to write to the ROM.
# ifdtool -u blobs/r630/ifd.bin && mv blobs/r630/ifd.bin.new blobs/r630/ifd.bin
blobs/$(BOARD)/me.bin: blobs/$(BOARD)/$(BOARD).rom
	dd < $< bs=$$[0x10000] skip=$$[$(ME_OFFSET)/0x10000] count=$$[$(ME_SIZE)/0x10000] > $@
blobs/$(BOARD)/pei.bin: blobs/$(BOARD)/$(BOARD).rom
	dd < $< bs=$$[0x10000] skip=$$[$(PEI_OFFSET)/0x10000] count=$$[$(PEI_SIZE)/0x10000] > $@

nerf-$(BOARD).rom: \
		blobs/$(BOARD)/ifd.bin  \
		blobs/$(BOARD)/me.bin \
		nerf.vol \
		blobs/$(BOARD)/pei.bin \

	cat $^ > $@
	@if [ `stat -c'%s' $@` -ne $(ROM_SIZE) ]; then \
		echo -n >&2 "$@ SHOULD BE 16MB. size "; \
		stat -c'%s' $@ >&2 ; \
		mv $@ $@.bad; \
		exit 1; \
	fi

#
# Generate a compressed section
# LZMA guid is EE4E5898-3914-4259-9D6E-DC7BD79403CF
# Embedded filesystem is 8C8CE578-8A3D-4F1C-9935-896185C32DD3
#
acpi-lz.ffs: blobs/$(BOARD)/acpi-data.ffs
	$(EDK2_DIR)/GenFfs \
		-t EFI_FV_FILETYPE_FIRMWARE_VOLUME_IMAGE \
		-g 8C8CE578-8A3D-4F1C-9935-896185C32DD3 \
		-o $<.ffs.fv \
		-a 16 \
		-i $<
	$(EDK2_DIR)/LzmaCompress \
		-e \
		-q \
		-o $<.fv.lz \
		$<.fv
	$(EDK2_DIR)/GenSec \
		-s EFI_SECTION_GUID_DEFINED \
		-g EE4E5898-3914-4259-9D6E-DC7BD79403CF \
		-r PROCESSING_REQUIRED \
		-o $<.fv.lz.sec \
		$<.fv.lz
	$(EDK2_DIR)/GenFfs \
		-t EFI_FV_FILETYPE_FIRMWARE_VOLUME_IMAGE \
		-g 8C8CE578-8A3D-4F1C-9935-896185C32DD3 \
		-i $<.fv.lz.sec \
		-o $@


nerf.intermediate: edk2.intermediate nerf-$(BOARD).rom