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[KERNEL] 2.6.32.61-nAa-jb-06 [6/7/2013] [NEW WIFI/USB] - Unified kernel+CWM Recovery

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By nobodyAtall, Inactive Recognized Developer on 8th February 2013, 12:33 PM
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Before unlocking your bootloader, read this thread
If you brick your device, you are the sole responsible.



Preface:
  • Read through this post. Don't rush into flashing. Be sure you understand the process before you start or you risk damaging your device
  • This is a custom 2.6.32 kernel developed for Android Jellybean 4.x. However, as of nAa-06 Android gingerbread is also supported. This kernel only works for mimmi, a.k.a. X10miniPro
  • Do NOT try this kernel on other Android versions or phones - you are totally unsupported
  • This kernel uses a custom mtd partitioning with larger /system partition to hold the extra JB calories. If you are moving from another custom kernel, EXCEPT 2.6.29-nAa-jb to this one, you MUST first format /system /data and /cache via the embedded CWM recovery
  • If you want to flash another kernel after having flashed this one, you MUST first format /system /data and /cache via the embedded CWM recovery



Features:
  • Based on SEMC 2011 ICS sources, re-based on Linux kernel 2.6.32.61
  • Built with linaro 4.7.3 toolchain
  • CWM-v6.0.2.8
  • Idiot-proof feature: will boot into recovery if an unsupported or no android version is found
  • Custom mtd partitioning scheme suitable for JB
  • Modular recovery flashing support
  • Much more RAM than stock for improved multitasking experience (shakira: 186MB, robyn/mimmi: 187MB)
  • Patched to latest 2.6.32.61 release
  • kgsl: SEMC 2011
  • ARM: many backported fixes and optimizations from CAF 3.x
  • Netfilter: many backported fixes and optimizations from CAF 3.x.
  • net/iptables: Fully working networking and iptables support. Fully working traffic control via data limits menu of JB
  • Backported tiny-rcu
  • Superior AHB overclocking - improved responsiveness and performance. 'Buttery-smooth' experience
  • improvements: memcpy, kmalloc, jhash, sha1, scheduler, optimized CRC32, LZO, vmalloc, pm_suspend
  • Two-way call recording
  • binder, lowmemorykiller fixes backported from CAF 3.x
  • WEXT tiwlan
  • pmem: backported from CAF 2.6.35
  • modular undervolting
  • tripple buffering support
  • Supported IO Schedulers: NOOP, BFQ, AS, DEADLINE, CFQ, VR, SIO
  • net: Stochastic Fair Blue scheduler
  • ZRAM + google snappy compression backported from CAF 3.x
  • ZCACHE backported from CAF 3.x
  • Cleancache backported from CAF 3.x
  • Kernel compression: LZO for best kernel booting times
  • Makefile: optimization flags
  • dcache: vfs_cache_pressure -> 25
  • Proportional Rate Reduction for TCP
  • fsync enable/disable toggle at: /sys/module/sync/parameters/fsync_enabled (enabled by default)
  • Many many more fixes and improvements available @ github


Defaults:
  • Scheduler: CFS
  • RCU: Tiny RCU
  • Memory Manager: SLQB
  • IO scheduler: Deadline
  • CPU governor: smartassV2
  • CPU_FREQ_MAX=604800
  • CPU_FREQ_MIN=245760

FAQ:
If you have any issues, please read the FAQ thread first: TODO

Requirements:
Install:
Uninstall:
  • Flash back to stock using SEUS

    OR
  • Format /system /data and /cache via CWM and THEN flash another kernel via Flashtool
    Any other way is completely unsupported, don't ask how to unbrick if you can't read the instructions

Sources:
  • The linux kernel is GPL'ed, everyone who does modifications should make them publicly available.
  • Making a kernel thread for posting a difference in the ramdisk or for a so-called 'improved governor / io scheduler' is legal, but plain stupid, disrespectful and wasteful
  • I accept patches any way possible. Basically I only read pms if they contain some suggestion or patch Credits go to the author obviously
https://github.com/nobodyAtall/msm7x27-2.6.32.x-nAa

Donate:
If you are enjoying my work please consider donating:
Donations are voluntary but allow me to spend more time on this project.



Disclaimer:
I can't be held responsible if this Kernel bricks your device or makes it explode in your hands! Use it at your own risk!
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8th February 2013, 12:34 PM |#2  
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Changelog:

nAa-06 (6/7/2013)
- Supported android versions: gingerbread, ICS (?) and JB
- Linux 2.6.32.61
- Various ramdisk improvements

nAa-05 (15/3/2013)
- new .32 usb drivers for ICS/JB mtp support
- built with linaro 4.7.3 toolchain
- bluetooth: new rfkill implementation
- Fixed msm_serial_hs_dma wakelock for mimmi
- cypress: fix touchscreen driver for shakira
- synaptics_rmi4: implement dt/nodt via module parameter (no more hijacking for no dt)
- new vibrator implementation - better feedback
- lz4 kernel + ramdisk compression - faster startup
- decompressor: Enable unaligned memory access for v6 and above
- enabled keychord
- ramdisk improvements for smaller ramdisk and faster booting
- mimmi: fixed keypad
- synaptics: disabled dt by default to avoid 'ghost touch' side-effect

nAa-04 (27/2/2012)
- Latest CWM-v6.0.2.8
- In-recovery charging
- Sideload flashing from CWM
- New wl12xx wifi drivers for improved performance and decreased power consumption
- SmartassH3 CPU Governor
- Built with arm-eabi-4.4.3 toolchain
- Significant ramdisk improvements - kernel won't stay on black screen on any bad flashing occassion - it will boot to recovery
- CONFIG_IP6_NF_IPTABLES
- CRT animation workaround for proper JB support

nAa-03 (20/2/2012)
- bootable with all CM-based android versions >=2.3
- built with linaro 4.7.3 toolchain
- offline charging
- kgsl 3.11 from CAF
- timed_gpio: backport from CAF
- android: persistent_ram/ram_console backport from CAF
- logger: backport from CAF
- genlock: backport from CAF
- sysfs VDD levels interface for configurable undervolting from userspace

nAa-02
- Based on SEMC 2011 ICS sources, re-based on Linux kernel 2.6.32.60
- Built with arm-eabi-4.4.3 toolchain
- CWM-Based Recovery 5.5.0.4
- Custom mtd partitioning scheme suitable for JB
- Modular recovery flashing support
- Much more RAM than stock for improved multitasking experience (shakira: 186MB, robyn/mimmi: 187MB)
- Patched to latest 2.6.32.60 release
- kgsl: SEMC 2011
- ARM: many backported fixes and optimizations from CAF 3.x
- Netfilter: many backported fixes and optimizations from CAF 3.x.
- net/iptables: Fully working networking and iptables support. Fully working traffic control via
- data limits menu of JB
- Backported tiny-rcu
- Superior AHB overclocking - improved responsiveness and performance. 'Buttery-smooth' experience
- improvements: memcpy, kmalloc, jhash, sha1, scheduler, optimized CRC32, LZO, vmalloc, pm_suspend
- Two-way call recording
- binder, lowmemorykiller fixes backported from CAF 3.x
- WEXT tiwlan
- pmem: backported from CAF 2.6.35
- modular undervolting
- tripple buffering support
- Supported IO Schedulers: NOOP, BFQ, AS, DEADLINE, CFQ, VR, SIO
- net: Stochastic Fair Blue scheduler
- ZRAM + google snappy compression backported from CAF 3.x
- ZCACHE backported from CAF 3.x
- Cleancache backported from CAF 3.x
- Kernel compression: LZO for best kernel booting times
- Makefile: optimization flags
- dcache: vfs_cache_pressure -> 25
- Proportional Rate Reduction for TCP
- fsync enable/disable toggle at: /sys/module/sync/parameters/fsync_enabled (enabled by default)
- Many many more fixes and improvements available @ github
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8th February 2013, 12:34 PM |#3  
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VDD levels

From 03 onwards, I've ported the vddlevels functionality from msm7x30 so that we can variably change the voltage level of the frequency we want without the need for external modules.
The current voltage information is available at:
Quote:

/sys/devices/system/cpu/cpu0/cpufreq/vdd_levels

E.g. the defaults after flashing the kernel should be:
Quote:

[email protected]:/ # cat /sys/devices/system/cpu/cpu0/cpufreq/vdd_levels
122880: 3
245760: 4
320000: 5
480000: 6
604800: 7
614400: 7
633600: 7
652800: 7
672000: 7
691200: 7
710400: 7
729600: 7
748800: 7
768000: 7
787200: 7
806400: 7
825600: 7
844800: 7
864000: 7

To change for example the voltage level of the 122880 frequency, you could do:

Quote:

echo '122880 0' > /sys/devices/system/cpu/cpu0/cpufreq/vdd_levels

If you cat this file again, you should see that the voltage level is picked up. The new voltage level is picked up when the CPU will scale to the particular frequency level.

The undervolting tickbox in the 'Performance Settings' of the latest MiniCM10 nightlies already uses the new interface. The values that are set there are the same ones as those passed by the old undervolting module:

Quote:

[email protected]:/ # cat /sys/devices/system/cpu/cpu0/cpufreq/vdd_levels
122880: 0
245760: 2
320000: 3
480000: 5
604800: 6
614400: 7
633600: 7
652800: 7
672000: 7
691200: 7
710400: 7
729600: 7
748800: 7
768000: 7
787200: 7
806400: 7
825600: 7
844800: 7
864000: 7

Do I need undervolting?
You dont NEED undervolting. It can save though hours of some battery life during the day.

Overvolting?
Even though the interface allows you to overvolt, I don't suggest doing so. It will result to instabilities or crashes and is totally unsupported.

Performance?
Undervolting decreases the performance results - this is to be expected.


Performance comparison vs .29 kernel
+20%-30%



Bugs confirmed:

- Cypress is not as smooth as with .29
- Bluetooth is not pairing sometimes
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8th February 2013, 01:12 PM |#4  
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Finally .32 is avaible for mimmi *.* thank you nAa, you are the best developer on the world
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8th February 2013, 01:16 PM |#5  
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Re: [KERNEL] 2.6.32.60-nAa-jb-02 [8/2/2013] Custom JB kernel + CWM Recovery
Quote:
Originally Posted by michcio53

Finally .32 is avaible for mimmi *.* thank you nAa, you are the best developer on the world

i m a noob
can u tell me what is .32 ?

Sent from my U20i using Tapatalk 2
8th February 2013, 01:19 PM |#6  
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Re: [KERNEL] 2.6.32.60-nAa-jb-02 [8/2/2013] Custom JB kernel + CWM Recovery
Nice nice nAa.... THX))

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8th February 2013, 01:42 PM |#7  
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Wink Testing
Today, testing. Thanks nAa and your friend's developers
8th February 2013, 02:19 PM |#8  
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Quote:
Originally Posted by Rawwr

i m a noob
can u tell me what is .32 ?

Sent from my U20i using Tapatalk 2

.32 is a shortcut of the 2.6.32.6
8th February 2013, 02:50 PM |#9  
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Thank you for the awesome work!

Downloading now new kernek and last nigthly...

Thanks
8th February 2013, 03:10 PM |#10  
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AW: [KERNEL] 2.6.32.60-nAa-jb-02 [8/2/2013] Custom JB kernel + CWM Recovery
nAa, best developer for our x10 MP out there...
Testing now.
Thanks for your work.

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8th February 2013, 03:22 PM |#11  
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Quote:
Originally Posted by Rawwr

i m a noob
can u tell me what is .32 ?

Sent from my U20i using Tapatalk 2

If you want to know what is .32, you should read http://kernelnewbies.org/Linux_2_6_32 part of changelog also refers to Android kernel.
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