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

PKG_NAME:=bcm27xx-gpu-fw
PKG_VERSION:=2024-04-24
PKG_RELEASE:=969420b4121b522ab33c5001074cc4c2547dafaf

PKG_BUILD_DIR:=$(KERNEL_BUILD_DIR)/$(PKG_NAME)/rpi-firmware-$(PKG_RELEASE)

PKG_FLAGS:=nonshared

include $(INCLUDE_DIR)/package.mk

RPI_FIRMWARE_URL:=@GITHUB/raspberrypi/firmware/$(PKG_RELEASE)/boot/
RPI_FIRMWARE_FILE:=rpi-firmware-$(PKG_RELEASE)

define Download/LICENCE_broadcom
  FILE:=$(RPI_FIRMWARE_FILE)-LICENCE.broadcom
  URL:=$(RPI_FIRMWARE_URL)
  URL_FILE:=LICENCE.broadcom
  HASH:=c7283ff51f863d93a275c66e3b4cb08021a5dd4d8c1e7acc47d872fbe52d3d6b
endef
$(eval $(call Download,LICENCE_broadcom))

define Download/bootcode_bin
  FILE:=$(RPI_FIRMWARE_FILE)-bootcode.bin
  URL:=$(RPI_FIRMWARE_URL)
  URL_FILE:=bootcode.bin
  HASH:=af603ebd97e7b692c30195563f7b25656eb05d57838cf1a715ebb470d1614ce4
endef
$(eval $(call Download,bootcode_bin))

define Download/fixup_dat
  FILE:=$(RPI_FIRMWARE_FILE)-fixup.dat
  URL:=$(RPI_FIRMWARE_URL)
  URL_FILE:=fixup.dat
  HASH:=94ae3ff8363a6a2832f173241597b6500cf67044d34155a1251fe58671dd6ce7
endef
$(eval $(call Download,fixup_dat))

define Download/fixup_cd_dat
  FILE:=$(RPI_FIRMWARE_FILE)-fixup_cd.dat
  URL:=$(RPI_FIRMWARE_URL)
  URL_FILE:=fixup_cd.dat
  HASH:=2d7c19e46780ef29867f8ed200a94bb77a7982f5bc41219afe864d2303ba3084
endef
$(eval $(call Download,fixup_cd_dat))

define Download/fixup_x_dat
  FILE:=$(RPI_FIRMWARE_FILE)-fixup_x.dat
  URL:=$(RPI_FIRMWARE_URL)
  URL_FILE:=fixup_x.dat
  HASH:=692393562d0650f7d1891ba0143ad0500ccf07129947d386d56350e7ca204d16
endef
$(eval $(call Download,fixup_x_dat))

define Download/fixup4_dat
  FILE:=$(RPI_FIRMWARE_FILE)-fixup4.dat
  URL:=$(RPI_FIRMWARE_URL)
  URL_FILE:=fixup4.dat
  HASH:=63a4a8f356e2b8ed2850d68b9adf21008ef1dfa7743b22ddc26987e4d3171302
endef
$(eval $(call Download,fixup4_dat))

define Download/fixup4cd_dat
  FILE:=$(RPI_FIRMWARE_FILE)-fixup4cd.dat
  URL:=$(RPI_FIRMWARE_URL)
  URL_FILE:=fixup4cd.dat
  HASH:=2d7c19e46780ef29867f8ed200a94bb77a7982f5bc41219afe864d2303ba3084
endef
$(eval $(call Download,fixup4cd_dat))

define Download/fixup4x_dat
  FILE:=$(RPI_FIRMWARE_FILE)-fixup4x.dat
  URL:=$(RPI_FIRMWARE_URL)
  URL_FILE:=fixup4x.dat
  HASH:=41328f6587c0cd47ae7fa7edab4bf62730dda54caf52ffaa3bfb24ff93b8348b
endef
$(eval $(call Download,fixup4x_dat))

define Download/start_elf
  FILE:=$(RPI_FIRMWARE_FILE)-start.elf
  URL:=$(RPI_FIRMWARE_URL)
  URL_FILE:=start.elf
  HASH:=8637fb847ff62f69fbb8b98b1beff685b47cf4095580e830724f6a27fb20fee0
endef
$(eval $(call Download,start_elf))

define Download/start_cd_elf
  FILE:=$(RPI_FIRMWARE_FILE)-start_cd.elf
  URL:=$(RPI_FIRMWARE_URL)
  URL_FILE:=start_cd.elf
  HASH:=6832f57236f6c453cd72eac1f0ab53e265037fb75fc41301448fedb8d505f2b3
endef
$(eval $(call Download,start_cd_elf))

define Download/start_x_elf
  FILE:=$(RPI_FIRMWARE_FILE)-start_x.elf
  URL:=$(RPI_FIRMWARE_URL)
  URL_FILE:=start_x.elf
  HASH:=6f72a3fda8cbdacb340676e18a8468b9edd89458173b5ecf3c12b00c147dce40
endef
$(eval $(call Download,start_x_elf))

define Download/start4_elf
  FILE:=$(RPI_FIRMWARE_FILE)-start4.elf
  URL:=$(RPI_FIRMWARE_URL)
  URL_FILE:=start4.elf
  HASH:=badf4cd8822d1b85ad56ddb9e32e9b4220c88099c8cc0c3e70ae77190571c8ef
endef
$(eval $(call Download,start4_elf))

define Download/start4cd_elf
  FILE:=$(RPI_FIRMWARE_FILE)-start4cd.elf
  URL:=$(RPI_FIRMWARE_URL)
  URL_FILE:=start4cd.elf
  HASH:=7d3f13c8412c6b0efdbd3b53439776f3552621cc28ee887caaac539fb063ad8a
endef
$(eval $(call Download,start4cd_elf))

define Download/start4x_elf
  FILE:=$(RPI_FIRMWARE_FILE)-start4x.elf
  URL:=$(RPI_FIRMWARE_URL)
  URL_FILE:=start4x.elf
  HASH:=c30fbdfedad7180245ff567ccdea953fc1816d0da3ff4701b15071c6f8b47a89
endef
$(eval $(call Download,start4x_elf))

define Package/bcm27xx-gpu-fw
  SECTION:=boot
  CATEGORY:=Boot Loaders
  DEPENDS:=@TARGET_bcm27xx
  TITLE:=bcm27xx-gpu-fw
  DEFAULT:=y if TARGET_bcm27xx
endef

define Package/bcm27xx-gpu-fw/description
 GPU and kernel boot firmware for bcm27xx.
endef

define Build/Prepare
	rm -rf $(PKG_BUILD_DIR)
	mkdir -p $(PKG_BUILD_DIR)
	$(CP) $(DL_DIR)/$(RPI_FIRMWARE_FILE)-LICENCE.broadcom $(PKG_BUILD_DIR)/LICENCE.broadcom
	$(CP) $(DL_DIR)/$(RPI_FIRMWARE_FILE)-bootcode.bin $(PKG_BUILD_DIR)/bootcode.bin
	$(CP) $(DL_DIR)/$(RPI_FIRMWARE_FILE)-fixup.dat $(PKG_BUILD_DIR)/fixup.dat
	$(CP) $(DL_DIR)/$(RPI_FIRMWARE_FILE)-fixup_cd.dat $(PKG_BUILD_DIR)/fixup_cd.dat
	$(CP) $(DL_DIR)/$(RPI_FIRMWARE_FILE)-fixup_x.dat $(PKG_BUILD_DIR)/fixup_x.dat
	$(CP) $(DL_DIR)/$(RPI_FIRMWARE_FILE)-fixup4.dat $(PKG_BUILD_DIR)/fixup4.dat
	$(CP) $(DL_DIR)/$(RPI_FIRMWARE_FILE)-fixup4cd.dat $(PKG_BUILD_DIR)/fixup4cd.dat
	$(CP) $(DL_DIR)/$(RPI_FIRMWARE_FILE)-fixup4x.dat $(PKG_BUILD_DIR)/fixup4x.dat
	$(CP) $(DL_DIR)/$(RPI_FIRMWARE_FILE)-start.elf $(PKG_BUILD_DIR)/start.elf
	$(CP) $(DL_DIR)/$(RPI_FIRMWARE_FILE)-start_cd.elf $(PKG_BUILD_DIR)/start_cd.elf
	$(CP) $(DL_DIR)/$(RPI_FIRMWARE_FILE)-start_x.elf $(PKG_BUILD_DIR)/start_x.elf
	$(CP) $(DL_DIR)/$(RPI_FIRMWARE_FILE)-start4.elf $(PKG_BUILD_DIR)/start4.elf
	$(CP) $(DL_DIR)/$(RPI_FIRMWARE_FILE)-start4cd.elf $(PKG_BUILD_DIR)/start4cd.elf
	$(CP) $(DL_DIR)/$(RPI_FIRMWARE_FILE)-start4x.elf $(PKG_BUILD_DIR)/start4x.elf
endef

define Build/Compile
	true
endef

define Package/bcm27xx-gpu-fw/install
	true
endef

define Build/InstallDev
	$(CP) $(PKG_BUILD_DIR)/bootcode.bin $(KERNEL_BUILD_DIR)
	$(CP) $(PKG_BUILD_DIR)/LICENCE.broadcom $(KERNEL_BUILD_DIR)
	$(CP) $(PKG_BUILD_DIR)/start.elf $(KERNEL_BUILD_DIR)
	$(CP) $(PKG_BUILD_DIR)/start_cd.elf $(KERNEL_BUILD_DIR)
	$(CP) $(PKG_BUILD_DIR)/start_x.elf $(KERNEL_BUILD_DIR)
	$(CP) $(PKG_BUILD_DIR)/start4.elf $(KERNEL_BUILD_DIR)
	$(CP) $(PKG_BUILD_DIR)/start4cd.elf $(KERNEL_BUILD_DIR)
	$(CP) $(PKG_BUILD_DIR)/start4x.elf $(KERNEL_BUILD_DIR)
	$(CP) $(PKG_BUILD_DIR)/fixup.dat $(KERNEL_BUILD_DIR)
	$(CP) $(PKG_BUILD_DIR)/fixup_cd.dat $(KERNEL_BUILD_DIR)
	$(CP) $(PKG_BUILD_DIR)/fixup_x.dat $(KERNEL_BUILD_DIR)
	$(CP) $(PKG_BUILD_DIR)/fixup4.dat $(KERNEL_BUILD_DIR)
	$(CP) $(PKG_BUILD_DIR)/fixup4cd.dat $(KERNEL_BUILD_DIR)
	$(CP) $(PKG_BUILD_DIR)/fixup4x.dat $(KERNEL_BUILD_DIR)
endef

$(eval $(call BuildPackage,bcm27xx-gpu-fw))