Android device configuration for AOSP

[Guest hecatae]

The device tree, for example, /device/lg/e400 would consist of the following make files:

Android.mk - this will tell the build system to include and to build sources specifically for your device. See below, for an example. This is dependant on the device and hardware, you could have libsensors, liblights, libcamera subdirectories under the example device tree, i.e. /device/lg/e400/libsensors, /device/lg/e400/liblights, /device/lg/e400/libcamera etc.

AndroidBoard.mk - this is for the kernel, the build system uses that to drop the kernel image in place (more about this in a few minutes)

AndroidProducts.mk - specifies the appropriate device's make file, to use for building. i.e. /device/lg/e400/device_e400.mk, this is specific also.

device_e400.mk - specifies the properties and extras to copy over into the final output.

BoardConfig.mk - This is the meat of it all, this is where compiler conditional flags are set, partition layouts, boot addresses, ramdisk size, and so on.

Android.mk:

ifeq ($(TARGET_BOOTLOADER_BOARD_NAME),xxxxx)

    include $(call all-named-subdir-makefiles, recovery libsensors liblights libcamera ....)

endif[/code]




[u]AndroidBoard.mk[/u]:

[code]LOCAL_PATH := device/lg/e400/


#

# Boot files

#

TARGET_PREBUILT_KERNEL := $(LOCAL_PATH)/kernel


file := $(INSTALLED_KERNEL_TARGET)

ALL_PREBUILT += $(file)

$(file): $(TARGET_PREBUILT_KERNEL) | $(ACP)

    $(transform-prebuilt-to-target)

AndroidProducts.mk:

PRODUCT_MAKEFILES := \

    $(LOCAL_DIR)/device_e400.mk [/code]




[u]device_e400.mk[/u]:

[code]PRODUCT_NAME := lg_e400

PRODUCT_DEVICE := e400

PRODUCT_MODEL := LG e400


PRODUCT_COPY_FILES += \

    ... specific ...


PRODUCT_PROPERTY_OVERRIDES := \

    ro.com.android.dateformat=dd-MM-yyyy \

     ... more stuff ...

BoardConfig.mk:

LOCAL_PATH:= $(call my-dir)


TARGET_NO_BOOTLOADER := true

TARGET_BOARD_PLATFORM := msm7x27a

TARGET_BOARD_PLATFORM_GPU := qcom-adreno200


TARGET_CPU_ABI := armeabi-v7a

TARGET_CPU_ABI2 := armeabi

TARGET_ARCH_VARIANT := armv7-a-neon

ARCH_ARM_HAVE_TLS_REGISTER := true

TARGET_CPU_SMP := true

TARGET_BOOTLOADER_BOARD_NAME := e400

TARGET_CORTEX_CACHE_LINE_32 := true


BOARD_KERNEL_CMDLINE := androidboot.hardware=e0

BOARD_KERNEL_BASE := 0x00200000

BOARD_FORCE_RAMDISK_ADDRESS := 0x01300000

BOARD_KERNEL_PAGESIZE := 4096


TARGET_GLOBAL_CFLAGS += -mfpu=neon -mfloat-abi=softfp

TARGET_GLOBAL_CPPFLAGS += -mfpu=neon -mfloat-abi=softfp


BOARD_BOOTIMAGE_PARTITION_SIZE := 8388608

BOARD_RECOVERYIMAGE_PARTITION_SIZE := 8388608

BOARD_SYSTEMIMAGE_PARTITION_SIZE := 392167424

BOARD_USERDATAIMAGE_PARTITION_SIZE := 164626432

BOARD_FLASH_BLOCK_SIZE := 131072


TARGET_PREBUILT_KERNEL := device/lge/e400/kernel

TARGET_PREBUILT_RECOVERY_KERNEL := device/lg/e400/recovery_kernel


TARGET_USERIMAGES_USE_EXT4 := true

BOARD_HAS_NO_SELECT_BUTTON := true

BOARD_USE_CUSTOM_RECOVERY_FONT := '"font_7x16.h"'


COMMON_GLOBAL_CFLAGS += -DQCOM_HARDWARE -DQCOM_ROTATOR_KERNEL_FORMATS


USE_OPENGL_RENDERER := true


# QCOM stuffs

BOARD_USES_QCOM_HARDWARE := true

TARGET_USES_OVERLAY := false

TARGET_HAVE_BYPASS  := false

TARGET_USES_C2D_COMPOSITION := true

TARGET_USES_GENLOCK := true

TARGET_QCOM_HDMI_OUT := false

TARGET_FORCE_CPU_UPLOAD := true

BOARD_USES_QCOM_LIBS := true

BOARD_USE_QCOM_PMEM := true

BOARD_EGL_CFG := device/lge/e400/egl.cfg

TARGET_GRALLOC_USES_ASHMEM := true


BOARD_HAVE_BLUETOOTH := true


# to enable the GPS HAL

BOARD_USES_QCOM_LIBRPC := true

BOARD_USES_QCOM_GPS := true

BOARD_VENDOR_QCOM_GPS_LOC_API_HARDWARE := e400

# AMSS version to use for GPS

BOARD_VENDOR_QCOM_GPS_LOC_API_AMSS_VERSION := 50000



BOARD_WLAN_DEVICE := qcwcn

WIFI_EXT_MODULE_PATH := /system/lib/modules/librasdioif.ko

WIFI_DRIVER_MODULE_PATH := /system/lib/modules/wlan.ko

WIFI_EXT_MODULE_NAME := librasdioif

WIFI_DRIVER_MODULE_NAME := wlan

BOARD_WPA_SUPPLICANT_PRIVATE_LIB := lib_driver_cmd_wext

BOARD_WPA_SUPPLICANT_DRIVER := WEXT

WPA_SUPPLICANT_VERSION := VER_0_8_X

BOARD_WEXT_NO_COMBO_SCAN := true


BOARD_VOLD_MAX_PARTITIONS := 22


COMMON_GLOBAL_CFLAGS += -DBOARD_CHARGING_CMDLINE_NAME='"lge.reboot"' -DBOARD_CHARGING_CMDLINE_VALUE='"pwroff"'[/code]


thanks to t0mm13b for his original post here: http://stackoverflow.com/questions/11352709/android-device-configuration-for-aosp

[Guest t0mm13b]

Looks good there! :)