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Android device configuration for AOSP

2 posts in this topic

Posted · Report post

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

[b]Android.mk[/b] - 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.
[b]AndroidBoard.mk[/b] - this is for the kernel, the build system uses that to drop the kernel image in place (more about this in a few minutes)
[b]AndroidProducts.mk[/b] - specifies the appropriate device's make file, to use for building. i.e. /device/lg/e400/device_e400.mk, this is specific also.
[b]device_e400.mk[/b] - specifies the properties and extras to copy over into the final output.
[b]BoardConfig.mk[/b] - This is the meat of it all, this is where compiler conditional flags are set, partition layouts, boot addresses, ramdisk size, and so on.

[u]Android.mk[/u]:
[code]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)[/code]

[u]AndroidProducts.mk[/u]:
[code]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 ...[/code]

[u]BoardConfig.mk[/u]:
[code]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
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Posted · Report post

Looks good there! :)
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