[KERNEL] SpeedMod Captivate [K13E HPCall VoodooSnd7 SharpnessFix STABLE]

The original SpeedMod kernel, now available for AT&T Captivate users! This kernel aims to be fast, compatible, stable, and have good battery life. It makes our Galaxy S run the way it should.

This kernel is for the AT&T Captivate (SGH-i897)

The forum thread for the GT-I9000 version is here: http://xdaforums.com/showthread.php?t=822756

WARNING: Before you try any lagfix, make sure that you have enough free space on your Internal SD. You should have at least more free space than data+dbdata+cache combined.

Latest K13E (12-Apr) - Voodoo Sound v7. Lowmemorykiller fixes. Improved display sharpness using AMOLED processing mode in MDNIE. Support for voice calls through headphones. Check here for more info and downloads.

Thanks to sasovics and rpicaso for the I897 boot logo!

>>> Click here for the installation procedure using Odin.

>>> If you have questions, please read the FAQ: Frequently Asked Questions first!

>>> What is the SpeedMod kernel?

Latest features:

- Compiled using codesourcery 2010.09: Faster and more battery efficient
- The only properly working Tiny RCU implementation, thanks to Paul McKenney
- More efficient: Removed debug logging from kernel and Android
- Most updated version of my Enhanced Universal Lagfix fork with improved stability
- Full Android 2.2.1 ROM compatibility

This kernel has:

- Based on JPX Android 2.2.1 kernel source
- Works on all stock Froyo 2.2 and 2.2.1 ROMs and popular custom ROMs
- 340MB RAM and all features should work
- Enhanced version of sztupy's Universal Lagfix
- Includes neldar's BackLightNotification 2.3 from https://github.com/project-voodoo/backlightnotification/tree/master/kernel_patches/
- Sharpness (AMOLED mode) & color fixes for the screen
- SpeedMod: Replaced kernel jhash2 with jhash3
- Includes my Startup Tweaks from http://xdaforums.com/showthread.php?t=813309
- Adjusted kernel HZ value to improve smoothness
- Uses BFQ IO scheduler by default, from http://algo.ing.unimo.it/people/paolo/disk_sched/sources.php
- Updated ext4 code in kernel from http://www2.kernel.org/pub/linux/kernel/people/tytso/ext4-patches/
- Properly working Tiny RCU patch for better speed and efficiency from http://android.git.kernel.org/?p=ke...it;h=9b1d82fa1611706fa7ee1505f290160a18caf95d
- Patched lowmemorykiller for compatibility with Tiny RCU from http://android.git.kernel.org/?p=ke...ff;h=5545554aac04918ece318270d63cbfcb015577a9
- Optimized compiler flags: -O2 -mcpu=cortex-a8 -mfpu=neon -mfloat-abi=softfp

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FOR BEGINNERS:

This kernel is based on sztupy's Universal Lagfix: Lagfix and root options are accessible by booting into the Recovery Menu.

To get the best speed, it is recommended that you enable all Tweaks from the Recovery Menu. Tweaks are under SpeedMod features. Info on Tweaks: http://xdaforums.com/showthread.php?t=813309

How to root: http://xdaforums.com/showpost.php?p=8896862&postcount=90

Kernel HZ value: HZ=500 is smoother, HZ=256 is Samsung default.

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Memory configs (K10J and later):

CONFIG_ANDROID_PMEM_MEMSIZE_PMEM=2048
CONFIG_ANDROID_PMEM_MEMSIZE_PMEM_GPU1=4096
CONFIG_ANDROID_PMEM_MEMSIZE_PMEM_ADSP=1500
CONFIG_WLAN_SAMSUNG_MEMSIZE_BCM=256
CONFIG_VIDEO_SAMSUNG_MEMSIZE_FIMC0=12288
CONFIG_VIDEO_SAMSUNG_MEMSIZE_FIMC1=1024
CONFIG_VIDEO_SAMSUNG_MEMSIZE_FIMC2=12288
CONFIG_VIDEO_SAMSUNG_MEMSIZE_MFC0=32768
CONFIG_VIDEO_SAMSUNG_MEMSIZE_MFC1=32768
CONFIG_VIDEO_SAMSUNG_MEMSIZE_TEXSTREAM=10240
CONFIG_VIDEO_SAMSUNG_MEMSIZE_FIMD=3072

THANKS: Big thanks to existz and xcaliburinhands for the i9000-to-i897 patch.

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WARNING: If you use a custom boot animation, apps like One Click Lag Fix will not work because it disables the playlogos1 script hack.

The files with ending with -CWM are for flashing using Clockwork Recovery.
These other zip files are for flashing with ODIN.

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The source code is posted on the GT-I9000 thread: http://xdaforums.com/showthread.php?t=822756

>>> If you have questions, please read the FAQ: Frequently Asked Questions first!

>>> CLICK HERE to DOWNLOAD the kernels.

Updated test: K12Q-T7:

This version is unbelievably smooth!

Android Logger (logcat) disabled by default.
Kernel debug messages have been disabled.
Fixed the super loud notifications with Voodoo Sound.

Changes from K12P:

- Disabled Android Logger (can be re-enabled via Tweaks)
- Disabled all kernel debug messages (printk) for efficiency
- Changed boot logo to I897 logo for AT&T Captivate version
- Changed /cache to ext4nj in recommended ext4 lagfix to fix large Market downloads
- Optional IPv6 Privacy support in Tweaks
- Voodoo Sound v2 compatible
- Fixed loud notification problem with headphones
- Fixed popping / clicking noise when music and FM radio is stopped / started
- Better FM Radio sound:
- - Really removed the high pass filter and DRC from FM Radio (restores full bass)
- - Turn on 4FS mode for ADC in FM Radio (smoother high frequencies)
- - Turn on 128x oversampling for ADC and DAC in FM Radio mode
- Adjusted volume of FM Radio and Media Playback to be similar
- General sound quality improvements:
- - Maximized digital mixer output to improve SNR and resolution
- - 128x oversampling option in Voodoo Sound enabled by default
- - Explicitly disable DRC and NG during media playback, if +1.5dB mode is NOT selected

For the AT&T Captivate version, ignore changes for FM Radio.

Reserved for future use.

Test version K12S-T3:

- Added 3-pole headset calling support: voice calls go via normal stereo headphones if attached, otherwise they go via the earpiece
- Fixed mic problem, now the mic works
- Voodoo app headphone amplifier control also controls headphone output level for headphone voice calls
- Voodoo Sound v3

Credit goes to xcaliburinhand for some of the source code changes.
Unfortunately xcaliburinhand's patch didn't work out of the box - the mic didn't work. I had to modify the driver further to get the mic to work.

*** Note: The voice call sound doesn't automatically switch between the earpiece and headphones if you plug-in or unplug the headphones while the call is in-progress. You have to toggle the speaker mode to make it switch.

SpeedMod + Voodoo Sound test version!

K12L-T5:

Changes from K12K:
- FM Radio sound quality improvement: removed Dynamic Range Compression
- Voodoo Sound v1: FM radio bass fix, controllable headphone output via app
- rear speaker volume +1 for media
- light sensor polling interval changed to 2s instead of 0.5s
(saves battery, more stable brightness levels)
- light sensor sensitivity adjusted so that the screen doesn't turn bright so easily
(saves battery and reduces screen burn)
- adjustments to IO Tweak (super smooth now!)
- changed battery level polling interval to 60 seconds, from 5 seconds

Note that you need Supercurio's Voodoo app to adjust the headphone level. If u don't install it, the default level is the same level as K12K (+1 from Nexus S, or +3 from SGS).

PS. The FM radio sound is really awesome after those voice filters have been removed!