# Toolchain configuration
CROSS_COMPILE = arm-none-eabi-
TARGET := application

BUILD_DIR := build
BIN_DIR := $(BUILD_DIR)/bin
DEP_DIR := $(BUILD_DIR)/dep

# SDK Paths
# -------------------------------------------------------------------
SDK_ROOT := lib/amb1_sdk
SOC_PATH := $(SDK_ROOT)/soc/realtek/8711b
# Define tool directories
AMEBA_TOOLS := $(SOC_PATH)/misc/iar_utility/common/tools
FLASH_TOOLS := $(SDK_ROOT)/soc/realtek/8195a/misc/gcc_utility
FLASH_DOWNLOAD := $(SOC_PATH)/misc/gnu_utility/flash_download/image
DEBUG_TOOLS := $(SOC_PATH)/misc/gcc_utility

# Build Tools
# -------------------------------------------------------------------
CC := $(CROSS_COMPILE)gcc
AR := $(CROSS_COMPILE)ar
AS := $(CROSS_COMPILE)as
NM := $(CROSS_COMPILE)nm
LD := $(CROSS_COMPILE)gcc
GDB := $(CROSS_COMPILE)gdb
OBJCOPY := $(CROSS_COMPILE)objcopy
OBJDUMP := $(CROSS_COMPILE)objdump
PYTHON ?= python tools/

# OS-Specific Tool Selection
# -------------------------------------------------------------------
OS := $(shell uname)
ifeq ($(findstring CYGWIN, $(OS)), CYGWIN)
    EXT := .exe
else
    EXT :=
endif

PICK := $(AMEBA_TOOLS)/pick$(EXT)
PAD := $(AMEBA_TOOLS)/padding$(EXT)
CHKSUM := $(AMEBA_TOOLS)/checksum$(EXT)
OTA := $(AMEBA_TOOLS)/ota$(EXT)

# OTA Configuration and Image Names
# -------------------------------------------------------------------
OTA_IDX ?= 1
ifeq ($(OTA_IDX),1)
    LINKER_SCRIPT := rlx8711B-symbol-v02-img2_xip1.ld
    IMAGE2_OTA := image2_all_ota1.bin
else ifeq ($(OTA_IDX),2)
    LINKER_SCRIPT := rlx8711B-symbol-v02-img2_xip2.ld
    IMAGE2_OTA := image2_all_ota2.bin
else
    $(error OTA_IDX must be 1 or 2)
endif


# Image configuration based on build type
# -------------------------------------------------------------------
ifeq ($(MAKECMDGOALS),mp)
    RAMALL_BIN := ram_all_mp.bin
    OTA_BIN := ota_mp.bin
    IMAGE2_OTA1 := image2_all_ota1_mp.bin
    IMAGE2_OTA2 := image2_all_ota2_mp.bin
    OTA_ALL := ota_all_mp.bin
else
    RAMALL_BIN := ram_all.bin
    OTA_BIN := ota.bin
    IMAGE2_OTA1 := image2_all_ota1.bin
    IMAGE2_OTA2 := image2_all_ota2.bin
    OTA_ALL := ota_all.bin
endif

# Include other makefiles
# -------------------------------------------------------------------
include $(MKFILES)/includes.mk
include $(MKFILES)/sources.mk

# Build Configuration
# -------------------------------------------------------------------
CFLAGS := \
    -DM3 -DCONFIG_PLATFORM_8711B \
    -mcpu=cortex-m4 -mthumb -mfloat-abi=hard -mfpu=fpv4-sp-d16 \
    -g2 -w -O2 -fno-common -fmessage-length=0 \
    -ffunction-sections -fdata-sections -fomit-frame-pointer \
    -fno-short-enums -DF_CPU=166000000L -std=gnu99 -fsigned-char \
    -Wno-pointer-sign -Wno-implicit-function-declaration \
    -Wno-incompatible-pointer-types -Wno-int-conversion

LFLAGS := \
    -mcpu=cortex-m4 -mthumb -mfloat-abi=hard -mfpu=fpv4-sp-d16 \
    -g --specs=nano.specs -nostartfiles \
    -Wl,-Map=$(BIN_DIR)/application.map -Os -Wl,--gc-sections \
    -Wl,--cref -Wl,--entry=Reset_Handler \
    -Wl,--no-enum-size-warning -Wl,--no-wchar-size-warning \
    -Wl,--wrap=malloc -Wl,--wrap=free -Wl,--wrap=realloc -Wl,--wrap=rom_psk_CalcGTK \
    -Wl,--wrap=rom_psk_CalcPTK -Wl,--wrap=CalcMIC -Wl,--wrap=CheckMIC \
    -Wl,--wrap=aes_80211_encrypt -Wl,--wrap=aes_80211_decrypt -Wl,--wrap=DecGTK

# Library configuration
# -------------------------------------------------------------------
LIB_DIR := $(SOC_PATH)/misc/bsp/lib/common/GCC

# Platform-specific libraries (with underscore)
PLATFORM_LIBS := platform wlan eap http wps p2p rtlstd
MP_PLATFORM_LIBS := platform wlan_mp eap wps p2p rtlstd

# System libraries (without underscore)
SYS_LIBS := m c nosys gcc

# Combined library flags
LIBFLAGS := -L$(LIB_DIR) $(addprefix -l_,$(PLATFORM_LIBS)) $(addprefix -l,$(SYS_LIBS))
MP_LIBFLAGS := -L$(LIB_DIR) $(addprefix -l_,$(MP_PLATFORM_LIBS)) $(addprefix -l,$(SYS_LIBS))

# Object files
# -------------------------------------------------------------------
SRC_O := $(patsubst %.c,$(BUILD_DIR)/%.o,$(SRC_C))
DRAM_O := $(patsubst %.c,$(BUILD_DIR)/%.o,$(DRAM_C))
DEPENDENCY_LIST := $(patsubst %.c,$(BUILD_DIR)/%.d,$(SRC_C) $(DRAM_C))

VPATH := $(sort $(dir $(SRC_C)) $(dir $(DRAM_C)))

# Main targets
# -------------------------------------------------------------------
.PHONY: all mp clean directories application manipulate_images build_info prerequirement

all mp: directories application manipulate_images

directories:
	@mkdir -p $(BIN_DIR) $(DEP_DIR) $(dir $(SRC_O) $(DRAM_O))

# Compilation rules
# -------------------------------------------------------------------
$(filter $(BUILD_DIR)/%,$(SRC_O)): $(BUILD_DIR)/%.o: %.c
	@mkdir -p $(dir $@)
	$(CC) $(CFLAGS) $(INCLUDES) -c $< -o $@
	$(CC) $(CFLAGS) $(INCLUDES) -c $< -MM -MT $@ -MF $(patsubst %.o,%.d,$@)

$(filter $(BUILD_DIR)/%,$(DRAM_O)): $(BUILD_DIR)/%.o: %.c
	@mkdir -p $(dir $@)
	$(CC) $(CFLAGS) $(INCLUDES) -c $< -o $@
	$(OBJCOPY) --prefix-alloc-sections .sdram $@
	$(CC) $(CFLAGS) $(INCLUDES) -c $< -MM -MT $@ -MF $(patsubst %.o,%.d,$@)

# Build Info Generation
# -------------------------------------------------------------------
.PHONY: build_info
build_info:
	@echo "Generating build information..."
	@( \
		echo '#define RTL_FW_COMPILE_TIME "'`date +%Y/%m/%d-%T`'"'; \
		echo '#define RTL_FW_COMPILE_DATE "'`date +%Y%m%d`'"'; \
		echo '#define UTS_VERSION "'`date +%Y/%m/%d-%T`'"'; \
		echo '#define RTL8195AFW_COMPILE_TIME "'`date +%Y/%m/%d-%T`'"'; \
		echo '#define RTL8195AFW_COMPILE_DATE "'`date +%Y%m%d`'"'; \
		echo '#define RTL8195AFW_COMPILE_BY "'`id -u -n`'"'; \
		echo '#define RTL8195AFW_COMPILE_HOST "'`$(HOSTNAME_APP)`'"'; \
		if [ -x /bin/dnsdomainname ]; then \
			echo '#define RTL8195AFW_COMPILE_DOMAIN "'`dnsdomainname`'"'; \
		elif [ -x /bin/domainname ]; then \
			echo '#define RTL8195AFW_COMPILE_DOMAIN "'`domainname`'"'; \
		else \
			echo '#define RTL8195AFW_COMPILE_DOMAIN ""'; \
		fi; \
		echo '#define RTL195AFW_COMPILER "gcc '`$(CC) $(CFLAGS) -dumpversion | tr --delete '\r'`'"'; \
	) > include/build_info.h

# Image Manipulation
# -------------------------------------------------------------------
.PHONY: manipulate_images
manipulate_images:
	@echo "=== Image Manipulation ==="
	
	# Generate symbol maps
	$(NM) $(BIN_DIR)/$(TARGET).axf | sort > $(BIN_DIR)/$(TARGET).nmap
	
	# Extract sections
	$(OBJCOPY) -j .ram_image2.entry -j .ram_image2.data -j .ram_image2.text -j .ram_image2.bss -j .ram_image2.skb.bss -j .ram_heap.data -Obinary $(BIN_DIR)/$(TARGET).axf $(BIN_DIR)/ram_2.r.bin
	$(OBJCOPY) -j .xip_image2.text -Obinary $(BIN_DIR)/$(TARGET).axf $(BIN_DIR)/xip_image2.bin
	$(OBJCOPY) -j .ram_rdp.text -Obinary $(BIN_DIR)/$(TARGET).axf $(BIN_DIR)/rdp.bin
	
	# Prepare boot image
	cp $(SOC_PATH)/misc/bsp/image/boot_all.bin $(BIN_DIR)/boot_all.bin
	chmod 777 $(BIN_DIR)/boot_all.bin
	chmod +rx $(PICK) $(CHKSUM) $(PAD) $(OTA)
	
	# Process memory images
	$(PICK) 0x`grep __ram_image2_text_start__ $(BIN_DIR)/$(TARGET).nmap | gawk '{print $$1}'` 0x`grep __ram_image2_text_end__ $(BIN_DIR)/$(TARGET).nmap | gawk '{print $$1}'` $(BIN_DIR)/ram_2.r.bin $(BIN_DIR)/ram_2.bin raw
	$(PICK) 0x`grep __ram_image2_text_start__ $(BIN_DIR)/$(TARGET).nmap | gawk '{print $$1}'` 0x`grep __ram_image2_text_end__ $(BIN_DIR)/$(TARGET).nmap | gawk '{print $$1}'` $(BIN_DIR)/ram_2.bin $(BIN_DIR)/ram_2.p.bin
	$(PICK) 0x`grep __xip_image2_start__ $(BIN_DIR)/$(TARGET).nmap | gawk '{print $$1}'` 0x`grep __xip_image2_start__ $(BIN_DIR)/$(TARGET).nmap | gawk '{print $$1}'` $(BIN_DIR)/xip_image2.bin $(BIN_DIR)/xip_image2.p.bin
	
	# Generate OTA images
ifeq ("${OTA_IDX}", "1")
	cat $(BIN_DIR)/xip_image2.p.bin > $(BIN_DIR)/$(IMAGE2_OTA1)
	chmod 777 $(BIN_DIR)/$(IMAGE2_OTA1)
	cat $(BIN_DIR)/ram_2.p.bin >> $(BIN_DIR)/$(IMAGE2_OTA1)
	$(CHKSUM) $(BIN_DIR)/$(IMAGE2_OTA1) || true
	#rm $(BIN_DIR)/xip_image2.p.bin $(BIN_DIR)/ram_2.p.bin
else ifeq ("${OTA_IDX}", "2")
	cat $(BIN_DIR)/xip_image2.p.bin > $(BIN_DIR)/$(IMAGE2_OTA2)
	chmod 777 $(BIN_DIR)/$(IMAGE2_OTA2)
	cat $(BIN_DIR)/ram_2.p.bin >> $(BIN_DIR)/$(IMAGE2_OTA2)
	$(CHKSUM) $(BIN_DIR)/$(IMAGE2_OTA2) || true
	$(OTA) $(BIN_DIR)/$(IMAGE2_OTA1) 0x800B000 $(BIN_DIR)/$(IMAGE2_OTA2) 0x08080000 0x20170111 $(BIN_DIR)/$(OTA_ALL)
endif

# Prerequisite setup
# -------------------------------------------------------------------
.PHONY: prerequirement
prerequirement:
	@echo "=== Setting up prerequisites for $(TARGET) ==="
	@mkdir -p $(BUILD_DIR)/boot $(BIN_DIR)
	cp $(SOC_PATH)/misc/bsp/image/boot_all.bin $(BUILD_DIR)/boot/boot_all.bin
	chmod 777 $(BUILD_DIR)/boot/boot_all.bin
	$(OBJCOPY) -I binary -O elf32-littlearm -B arm \
		$(BUILD_DIR)/boot/boot_all.bin $(BUILD_DIR)/boot/boot_all.o

# Main build target
# -------------------------------------------------------------------
application: prerequirement build_info $(SRC_O) $(DRAM_O)
	$(LD) $(LFLAGS) -o $(BIN_DIR)/$(TARGET).axf $(SRC_O) $(DRAM_O) \
		$(BUILD_DIR)/boot/boot_all.o $(LIBFLAGS) -T./$(LINKER_SCRIPT)
	$(OBJDUMP) -d $(BIN_DIR)/$(TARGET).axf > $(BIN_DIR)/$(TARGET).asm

# Include generated dependencies
-include $(DEPENDENCY_LIST)

# Clean target
# -------------------------------------------------------------------
clean:
	rm -rf $(BUILD_DIR)