ROM Android: Porting A80A

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Dapatkan /system/build.prop

mkdir backup-A80A
cd backup-A80A/

adb devices
adb pull /system/build.prop

Hasilnya 

# begin build properties
# autogenerated by buildinfo.sh
ro.build.id=JDQ39
ro.build.display.id=EVERCOSS_V1.0_0601
ro.build.version.incremental=20140108.173524
ro.custom.build.version=1402409603
ro.build.version.sdk=17
ro.build.version.codename=REL
ro.build.version.release=4.2.2
ro.build.date=2014年 06月 10日 星期二 22:18:31 CST
ro.build.date.utc=1402409911
ro.build.type=user
ro.build.user=yangning
ro.build.innner.version=SW_W99601A4_V004_M10_EVERCOSS
ro.build.host=yubosong-desktop
ro.build.tags=test-keys
ro.product.model=A80A
ro.product.brand=EVERCOSS
ro.product.name=a80a
ro.product.device=a80a
ro.product.board=a80a
ro.product.cpu.abi=armeabi-v7a
ro.product.cpu.abi2=armeabi
ro.product.manufacturer=EVERCOSS
ro.product.locale.language=en
ro.product.locale.region=US
ro.wifi.channels=
ro.board.platform=
ro.build.hardware.version=P1
ro.build.customer=EVERCOSS
# ro.build.product is obsolete; use ro.product.device
ro.build.product=a80a
# Do not try to parse ro.build.description or .fingerprint
ro.build.description=wt99601-user 4.2.2 JDQ39 eng.yangning.1402409603 test-keys
ro.build.fingerprint=EVERCOSS/a80a/a80a:4.2.2/JDQ39/20140108.173524:user/test-keys
ro.build.flavor=
ro.build.characteristics=default
# end build properties 

# begin mediatek build properties
ro.mediatek.version.release=SW_W99601A4_V004_M10_EVERCOSS
ro.mediatek.platform=MT6592
ro.mediatek.chip_ver=S01
ro.mediatek.version.branch=ALPS.JB9.MP
ro.mediatek.version.sdk=1
# end mediatek build properties
#
# system.prop for generic sdk
#

rild.libpath=/system/lib/mtk-ril.so
rild.libargs=-d /dev/ttyC0 

# MTK, Infinity, 20090720 {
wifi.interface=wlan0
# MTK, Infinity, 20090720 } 

# MTK, mtk03034, 20101210 {
ro.mediatek.wlan.wsc=1
# MTK, mtk03034 20101210}
# MTK, mtk03034, 20110318 {
ro.mediatek.wlan.p2p=1
# MTK, mtk03034 20110318}

# MTK, mtk03034, 20101213 {
mediatek.wlan.ctia=0
# MTK, mtk03034 20101213}

#
wifi.tethering.interface=ap0
#

ro.opengles.version=131072 

wifi.direct.interface=p2p0
dalvik.vm.heapgrowthlimit=128m
dalvik.vm.heapsize=256m 

# USB MTP WHQL
ro.sys.usb.mtp.whql.enable=0 

# Power off opt in IPO
sys.ipo.pwrdncap=2 

# Switching Menu of Mass storage and MTP
ro.sys.usb.storage.type=mtp,mass_storage

# USB BICR function
ro.sys.usb.bicr=yes

# USB Charge only function
ro.sys.usb.charging.only=yes

# audio
ro.camera.sound.forced=0
ro.audio.silent=0

ro.zygote.preload.enable=0
# temporary enables NAV bar (soft keys)
qemu.hw.mainkeys=1

ro.ota.xml_url=http://update.archos.com/update_archos_gen8_daos.xml
ro.ota.xml_prefix=http://update.archos.com/AFMv1/storage/xml/update_
ro.ota.product_name=a80a
ro.ota.product_device=a80a
ro.ota.firmware_file_basename=update
ro.ota.firmware_file_extension=zip 

ro.com.google.clientidbase=android-archos
ro.operator.optr=CUST
#
# ADDITIONAL_BUILD_PROPERTIES
#
persist.gemini.sim_num=2
ro.gemini.smart_sim_switch=false
ro.gemini.smart_3g_switch=0
ril.specific.sm_cause=0
bgw.current3gband=0
ro.build.display.wtid=SW_W99601A4_V004_M10_EVERCOSS
ril.external.md=0
ro.btstack=blueangel
ro.sf.hwrotation=0
ril.current.share_modem=2
launcherplus.allappsgrid=2d
launcher2.allappsgrid=3d_20
curlockscreen=1
ro.mediatek.gemini_support=true
persist.radio.fd.counter=15
persist.radio.fd.off.counter=5
persist.radio.fd.r8.counter=15
persist.radio.fd.off.r8.counter=5
persist.mtk.wcn.combo.chipid=-1
drm.service.enabled=true
fmradio.driver.enable=1
ril.first.md=1
ril.flightmode.poweroffMD=1
ril.telephony.mode=0
dalvik.vm.mtk-stack-trace-file=/data/anr/mtk_traces.txt
persist.mtk.anr.mechanism=1
mediatek.wlan.chip=MTK_CONNSYS_MT6592
mediatek.wlan.module.postfix=_mtk_connsys_mt6592
ril.radiooff.poweroffMD=0
ro.config.notification_sound=Proxima.ogg
ro.config.alarm_alert=Alarm_Classic.ogg
ro.config.ringtone=Backroad.ogg
ter.service.enable=0
persist.sys.display.clearMotion=1
persist.clearMotion.fblevel.nrm=255
persist.clearMotion.fblevel.bdr=255
ro.setupwizard.mode=OPTIONAL
ro.com.google.gmsversion=4.2_r4
net.bt.name=Android
dalvik.vm.stack-trace-file=/data/anr/traces.txt 

# begin adupsfota properties
ro.adups.fota.oem=MTK88_92
ro.adups.fota.device=A80A
ro.adups.fota.version=EVERCOSS_V1.0_0601
# begin adupsfota properties


Diperoleh 

ro.product.manufacturer=EVERCOSS > vendor evercoss
ro.product.device=a80a > codename a80a

Teliti Struktur Partisi

Lakukan 

adb pull /proc/dumchar_info

Hasilnya 

Part_Name	Size	StartAddr	Type	MapTo	Region
preloader    0x0000000000040000   0x0000000000000000   2   /dev/misc-sd     BOOT_1
mbr          0x0000000000080000   0x0000000000000000   2   /dev/block/mmcblk0     USER
ebr1         0x0000000000080000   0x0000000000080000   2   /dev/block/mmcblk0p1   USER
pro_info     0x0000000000300000   0x0000000000100000   2   /dev/block/mmcblk0     USER
nvram        0x0000000000500000   0x0000000000400000   2   /dev/block/mmcblk0     USER
protect_f    0x0000000000a00000   0x0000000000900000   2   /dev/block/mmcblk0p2   USER
protect_s    0x0000000000a00000   0x0000000001300000   2   /dev/block/mmcblk0p3   USER
seccfg       0x0000000000040000   0x0000000001d00000   2   /dev/block/mmcblk0     USER
uboot        0x0000000000060000   0x0000000001d40000   2   /dev/block/mmcblk0     USER
bootimg      0x0000000000a00000   0x0000000001da0000   2   /dev/block/mmcblk0     USER
recovery     0x0000000000a00000   0x00000000027a0000   2   /dev/block/mmcblk0     USER
sec_ro       0x0000000000600000   0x00000000031a0000   2   /dev/block/mmcblk0p4   USER
misc         0x0000000000080000   0x00000000037a0000   2   /dev/block/mmcblk0     USER
logo         0x0000000000800000   0x0000000003820000   2   /dev/block/mmcblk0     USER
ebr2         0x0000000000080000   0x0000000004020000   2   /dev/block/mmcblk0     USER
expdb        0x0000000000f60000   0x00000000040a0000   2   /dev/block/mmcblk0     USER
android      0x0000000032000000   0x0000000005000000   2   /dev/block/mmcblk0p5   USER
cache        0x0000000008000000   0x0000000037000000   2   /dev/block/mmcblk0p6   USER
usrdata      0x00000001c0000000   0x000000003f000000   2   /dev/block/mmcblk0p7   USER
fat          0x00000001a3900000   0x00000001ff000000   2   /dev/block/mmcblk0p8   USER
bmtpool      0x0000000001500000   0x00000000ffff00a8   2   /dev/block/mmcblk0     USER
Part_Name:Partition name you should open;
Size:size of partition
StartAddr:Start Address of partition;
Type:Type of partition(MTD=1,EMMC=2)
MapTo:actual device you operate

Lakukan 

adb pull /proc/partitions

Hasilnya 

major minor  #blocks  name

   7        0       1254 loop0
 253        0     524288 zram0
 179        0   15246336 mmcblk0
 179        1          1 mmcblk0p1
 179        2      10240 mmcblk0p2
 179        3      10240 mmcblk0p3
 179        4       6144 mmcblk0p4
 179        5     819200 mmcblk0p5
 179        6     131072 mmcblk0p6
 179        7    7340032 mmcblk0p7
 179        8    6874112 mmcblk0p8
 179       64       4096 mmcblk0boot1
 179       32       4096 mmcblk0boot0
 179       96    7802880 mmcblk1
 179       97    7798784 mmcblk1p1


Lakukan 

adb shell
ls -l /dev/block/platform/mtk-msdc.0/


Hasilnya 

drwxr-xr-x root     root              2014-12-30 11:36 by-num
lrwxrwxrwx root     root              2014-12-30 11:36 mmcblk0 -> /dev/block/mmcblk0
lrwxrwxrwx root     root              2014-12-30 11:36 mmcblk0boot0 -> /dev/block/mmcblk0boot0
lrwxrwxrwx root     root              2014-12-30 11:36 mmcblk0boot1 -> /dev/block/mmcblk0boot1
lrwxrwxrwx root     root              2014-12-30 11:36 mmcblk0p1 -> /dev/block/mmcblk0p1
lrwxrwxrwx root     root              2014-12-30 11:36 mmcblk0p2 -> /dev/block/mmcblk0p2
lrwxrwxrwx root     root              2014-12-30 11:36 mmcblk0p3 -> /dev/block/mmcblk0p3
lrwxrwxrwx root     root              2014-12-30 11:36 mmcblk0p4 -> /dev/block/mmcblk0p4
lrwxrwxrwx root     root              2014-12-30 11:36 mmcblk0p5 -> /dev/block/mmcblk0p5
lrwxrwxrwx root     root              2014-12-30 11:36 mmcblk0p6 -> /dev/block/mmcblk0p6
lrwxrwxrwx root     root              2014-12-30 11:36 mmcblk0p7 -> /dev/block/mmcblk0p7
lrwxrwxrwx root     root              2014-12-30 11:36 mmcblk0p8 -> /dev/block/mmcblk0p8

Beberapa partisi yang penting 

boot0    /dev/block/mmcblk0boot0
boot1    /dev/block/mmcblk0boot1
uboot    /dev/block/mmcblk0
bootimg  /dev/block/mmcblk0
recovery /dev/block/mmcblk0
android  /dev/block/mmcblk0p5
cache    /dev/block/mmcblk0p6
usrdata  /dev/block/mmcblk0p7

Dapatkan boot.img

adb devices
adb shell
su

dd if=/dev/block/mmcblk0boot0 of=/sdcard/boot0.img
dd if=/dev/block/mmcblk0boot1 of=/sdcard/boot1.img
exit

Di laptop / pc lakukan 

adb pull /sdcard/boot0.img
adb pull /sdcard/boot1.img


Jika Beruntung Memperoleh upgrade ROM

cp evercoss_A80A.zip ~
cd ~
unzip evercoss_A80A.zip 
cd evercoss_A80A/
unrar x SW_W99601A4_V011_M10_EVERCOSS_KK\(A80A_1016\).rar
cd ~/evercoss_A80A/SW_W99601A4_V011_M10_EVERCOSS_KK/Software/

Kita membutuhkan 

lk.bin
boot.img

Dapatkan recovery.img

Untuk A80A susah mendapatkan recovery.img dari device. Akan lebih mudah kalau dari upgrade ROM. 

cp evercoss_A80A.zip ~
cd ~
unzip evercoss_A80A.zip 
cd evercoss_A80A/
unrar x SW_W99601A4_V011_M10_EVERCOSS_KK\(A80A_1016\).rar
cd ~/evercoss_A80A/SW_W99601A4_V011_M10_EVERCOSS_KK/Software/

Kita membutuhkan 

recovery.img

Teliti Struktur Partisi

cat /proc/partitions



Menggunakan script mkvendor.sh untuk membuat file

Gunakan mkvendor.sh script ada di build/tools/device/ untuk secara automatis membuat directory.

Script mkvendor hanya dapat digunakan untuk device yang menggunakan file standard boot.img , menggunakan standard konvesi dan dan header Android standard. Script ini tidak jalan untuk device yang berbeda dari standard, seperti Nook Color, Touchpad, dll.

Script ini menerima tiga parameter: vendor, codename, dan file boot.img

Contoh penggunaan: 

$ ./build/tools/device/mkvendor.sh samsung i9300 ~/Desktop/i9300boot.img

Dalam contoh , samsung menunjukan vendor, i9300 menunjukan codename dan parameter terakhir path ke file boot.img yang di ekstrak dari partisi boot dengan dd atau diberikan oleh vendor dalam file .zip seperti di diskusikan di atas.

Perintah di atas akan membuat folder /device/samsung/i9300/ dalam struktur repo source CyanogenMod. Dalam folder tersebut ada file AndroidBoard.mk, AndroidProducts.mk, BoardConfig.mk, cm.mk, device_[codename].mk, kernel (binary), recovery.fstab, dll

Langkah di atas tidak akan membuat directory kernel/ . Kita perlu melakukannya nanti, saat kita sudah siap untuk membuat kernel.

Jika responds yang diberikan adalah

"unpackbootimg not found. Is your android build environment set up and have the host tools been built?"

pastikan anda menjalankan perintah berikut saat mensetup developer environment: 

$ make -j4 otatools
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