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

PKG_NAME:=bcm27xx-gpu-fw
PKG_VERSION:=2021-08-19
PKG_RELEASE:=25e2b597ebfb2495eab4816a276758dcc6ea21f1

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:=36fba28838867f26670a0cd1de340da62e13171cfdec0e7822737e849b3c0681
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:=b06aa43aa668d6982de66044299d1b0dd6b449ec321dd83742aa1eb68774e15b
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:=fff4fd9fbb691100be46269f554acd866eac8cfef39082e03ac12f70fbfe9d95
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:=d74f97ae37cd476e6d4c8e466c3013be49e891e63b9aabc0c9b7637d85068cd0
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:=a607f4dc3000c188f8daaa3417c70a9e5ecc039fae36ba46807c00294f89cd24
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:=fff4fd9fbb691100be46269f554acd866eac8cfef39082e03ac12f70fbfe9d95
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:=14ba09cba83d82a158481a7267fad06ada73c26c3a27dfd34694955f11ba6e27
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:=8bee170c56529bf1666ad4afdd18ae18c7123e7a2fd30e2992cd0d9a01fa63ee
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:=27d9354ff1af79a521527a288fe736f7337f91bca12bbc177c80e29dbbef0ffd
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:=499bfdf3deba7bb0a033d2a4487b7f05bce45de2692c7c6dabc4a456237fd438
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:=158bf783090223626cf45794bf679a3fadbf64bba55b76e3349b94e01be34202
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:=c4912701f620cdd9e44bbacbfc4adb4be1b6fb7ccf81f6029ce2115511970cc0
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:=3eb1adb5dfef21da0a16679ef65314a64196a67c6fca3422df8bc721d6b6fa94
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))