[ICS] Help with Gamepad/Controller Support

[Wully]

Read this it may halp?
http://rhombus-tech.net/allwinner_a10/kernel_compile/

I checked it and googled info about the processor, it doesn't support the mips instruction set I think. Im gona try and get the normal 3.0.8 kernel, not the mips port, and following the instructions in that post as best I can!

[suggsy89]

ro.product.cpu.abi=armeabi-v7a

So its ARM v7a

BTW i will try to compile from source too

[Wully]

I'll try compiling with ARCH=armv7-a on the mips kernel is that the kernel your using suggsy or a different one?

Don't we need a makefile for armv7-a? Forgive me I'm still very noobish at this xD

I tried the one on that rhombus-tech.net but I can't get it to compile.

EDIT*

[suggsy89]

Only just started If we can compile the 3.0.17 kernel it will be a start of course.

[Wully]

I'm following this tutorial, http://forum.xda-developers.com/showthr ... ?t=1490886
and using the unofficial allwinner 3.0.8 kernel from https://github.com/amery/linux-allwinner, wish me luck

Edit*

Heres the default .config file from the ICS 3.0.8 build I pulled from my tablet
http://dl.dropbox.com/u/6632380/ICS/ICS%203.0.8%20Kernal%20config

[suggsy89]

Im trying to build the 3.0.17 kernel, this is going to be fun

[Wully]

Let me know how you get on, I tried the unofficial allwinner 3.0.8, it failed.

Just tried the MIPS 3.0.8 kernel again and it compiled and output the two modules I wanted, xpad.ko and ff-memless.ko

Last section of the compile:

Code: Select all

  CC      drivers/input/ff-memless.mod.o
  CC      drivers/input/joystick/xpad.mod.o
  CC      drivers/media/common/tuners/tea5761.mod.o
  CC      drivers/net/usb/asix.mod.o
  CC      drivers/net/usb/mcs7830.mod.o
  CC      drivers/net/usb/rtl8150.mod.o
  CC      drivers/net/usb/usbnet.mod.o
  Kernel: arch/arm/boot/Image is ready
  AS      arch/arm/boot/compressed/head.o
  CC      drivers/scsi/scsi_wait_scan.mod.o
  CC      net/core/pktgen.mod.o
  GZIP    arch/arm/boot/compressed/piggy.gzip
  LD [M]  drivers/input/joystick/xpad.ko
  LD [M]  drivers/net/usb/asix.ko
  CC      arch/arm/boot/compressed/misc.o
  LD [M]  drivers/net/usb/mcs7830.ko
  CC      arch/arm/boot/compressed/decompress.o
  LD [M]  drivers/net/usb/rtl8150.ko
  LD [M]  drivers/net/usb/usbnet.ko
  SHIPPED arch/arm/boot/compressed/lib1funcs.S
  LD [M]  drivers/scsi/scsi_wait_scan.ko
  LD [M]  net/core/pktgen.ko
  AS      arch/arm/boot/compressed/lib1funcs.o
  LD [M]  drivers/input/ff-memless.ko
  LD [M]  drivers/media/common/tuners/tea5761.ko
  AS      arch/arm/boot/compressed/piggy.gzip.o
  LD      arch/arm/boot/compressed/vmlinux
  OBJCOPY arch/arm/boot/zImage
  Kernel: arch/arm/boot/zImage is ready


Checked the architecture of the files.
FF-memless.ko
http://dl.dropbox.com/u/6632380/ICS/ff-memless.ko

xpad.ko
http://dl.dropbox.com/u/6632380/ICS/xpad.ko


Just going to test insmod them onto the tablet and I'll edit this post with the results.

EDIT

It failed, it returned ff-memless.ko failed (Exec format error) again
This is the output of dmesg on the tablet:


This is from modinfo on the xpad.ko I compiled, you can see the vermagic line:
3.0.8+ preempt mod_unload modversions ARMv5

Code: Select all

william@william-VirtualBox:~/mipskernel/dev-android-linux-mti-3.0.8/drivers/input/joystick$ modinfo xpad.ko
filename:       xpad.ko
license:        GPL
description:    X-Box pad driver
author:         Marko Friedemann <mfr@bmx-chemnitz.de>
*section removed*
depends:       
vermagic:       3.0.8+ preempt mod_unload modversions ARMv5
parm:           dpad_to_buttons:Map D-PAD to buttons rather than axes for unknown pads (bool)
parm:           triggers_to_buttons:Map triggers to buttons rather than axes for unknown pads (bool)
parm:           sticks_to_null:Do not map sticks at all for unknown pads (bool)


Stuck again

[suggsy89]

Just tested...

Code: Select all

# insmod /system/vendor/modules/xpad.ko
insmod /system/vendor/modules/xpad.ko


insmod: init_module '/system/vendor/modules/xpad.ko' failed (Exec format error)

255|root@android:/ #

[suggsy89]

I think you must build for your kernel version, currently our ICS uses 3.0.8+ kernel
How are you trying to build unofficial allwinner 3.0.8 kernel
What commands are you using?

[Wully]

To build it?

make ARCH=arm oldconfig
then accepting the defaults for the .config
then make ARCH=arm

I changed the CROSS_COMPILE variable in the Makefile to point to where I downloaded/extracted the tool chain

I just got a module of xpad.ko from here:
http://www.slatedroid.com/topic/26637-official-ics-40-by-zenithink-beta-rom-1224/page__view__findpost__p__286881
I downloaded it and done modinfo on it:

Code: Select all

william@william-VirtualBox:~$ modinfo xpad.ko
filename:       xpad.ko
license:        GPL
description:    X-Box pad driver
author:         Marko Friedemann <mfr@bmx-chemnitz.de>
srcversion:     07DBAB16C16A0A5BD8D9085
*section removed*
depends:        ff-memless
vermagic:       2.6.34 mod_unload modversions ARMv7
parm:           dpad_to_buttons:Map D-PAD to buttons rather than axes for unknown pads (bool)
parm:           triggers_to_buttons:Map triggers to buttons rather than axes for unknown pads (bool)


Notice the vermagic 2.6.34 mod_unload modversions ARMv7
Makes me thing thats properly compiling in ARMv7 but when I do it on my xpad.ko it returns:
3.0.8+ preempt mod_unload modversions ARMv5

I think its the right kernel version, just wrong ARM version its compiling with?

I'm awfully confused lol

Unless we have the source of the kernel the ICS 3.0.8 build we have was compiled with, were probably not going to get a working module unless we can compile a working kernel from a different source and flash it?