Neo FreeRunner Openness

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(Thanks for the infos to cesarb on irc!)
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|MicroSDHC
 
|MicroSDHC
 
|?
 
|?
|?
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|Connected to the SMedia 3362
 
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|-
 
|LCD
 
|LCD
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|Touch Screen
 
|Touch Screen
 
|?
 
|?
|Connected to the SMedia Graphic Accelerator, no other docs needed
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|Connected to the s3c2442 similar to GTA01
 
|-
 
|-
 
|Vibrator
 
|Vibrator

Revision as of 04:08, 12 September 2007

Many people are more interested in getting a completely (and openly) documented hardware platform than in getting one with "just" all drivers under GPL. Why is this so? Just imagine an open source kernel which is released under a copyleft license which is incompatible to the GPL. These poor developers would have to reverse engineer a so called "open platform" as they cannot use the available drivers and header files. If you are a GPL-is-the-only-true-license guy/girl: Don't be offended by this, it's simply about choice. :)

This page tries to give you an overview how open the GTA02 hardware is documented and where to get the documentation. Your help is needed! If you know anything which is missing just add it, if possible with a reference where the info is coming from.

Component Name Openness
CPU Samsung S3C2442 Openly documented like the S3C2410? Link?
NAND flash ? ?
GSM modem TI Calypso? Speaks standard protocols with proprietary extensions. No further documentation available?
Quad-band transceiver TRF6151? ?
Analog baseband TWL3014? ?
WiFi Atheros AR6K No documentation available! GPL'ed driver only.
Bluetooth Delta DFBM-CS320 Class2 Module using CSR BlueCore4? Documented at http://www.bluetooth.com/Bluetooth/Learn/Technology/Specifications/
GPS ? mickeyl said that there hopefully would be a solution without the binary-only software. Documentation?
Graphic Accelerator SMedia 3362 Documentation will be released in the future according to http://lists.openmoko.org/pipermail/community/2007-September/010175.html . Speaks OpenGL ES 1.2 according to vendor homepage.
MicroSDHC ? Connected to the SMedia 3362
LCD TD028TTEC1 module using a Toshiba JBT6K74 TFT LCD Driver Chipset? ?
Touch Screen ? Connected to the s3c2442 similar to GTA01
Vibrator Simple motor attached to the PWM output of the s3c2442
Sound Codec Wolfson Codec Data sheet available at http://www.wolfsonmicro.com/uploads/documents/en/WM8753.pdf is that enough?
Sound Amplifier National Semiconductor LM4857 Data sheet available at http://www.national.com/ds.cgi/LM/LM4857.pdf is that enough?
Power management Philips PCF50606 Documented at http://www.rockbox.org/twiki/pub/Main/DataSheets/pcf50606.pdf
Battery Proprietary Thankfully it seems to be compatible with a widely used and cheap other one ;)
JTAG ? Standardized, BSDL file for the CPU will hopefully become available
Personal tools

Many people are more interested in getting a completely (and openly) documented hardware platform than in getting one with "just" all drivers under GPL. Why is this so? Just imagine an open source kernel which is released under a copyleft license which is incompatible to the GPL. These poor developers would have to reverse engineer a so called "open platform" as they cannot use the available drivers and header files. If you are a GPL-is-the-only-true-license guy/girl: Don't be offended by this, it's simply about choice. :)

This page tries to give you an overview how open the GTA02 hardware is documented and where to get the documentation. Your help is needed! If you know anything which is missing just add it, if possible with a reference where the info is coming from.

Component Name Openness
CPU Samsung S3C2442 Openly documented like the S3C2410? Link?
NAND flash ? ?
GSM modem TI Calypso? Speaks standard protocols with proprietary extensions. No further documentation available?
Quad-band transceiver TRF6151? ?
Analog baseband TWL3014? ?
WiFi Atheros AR6K No documentation available! GPL'ed driver only.
Bluetooth Delta DFBM-CS320 Class2 Module using CSR BlueCore4? Documented at http://www.bluetooth.com/Bluetooth/Learn/Technology/Specifications/
GPS ? mickeyl said that there hopefully would be a solution without the binary-only software. Documentation?
Graphic Accelerator SMedia 3362 Documentation will be released in the future according to http://lists.openmoko.org/pipermail/community/2007-September/010175.html . Speaks OpenGL ES 1.2 according to vendor homepage.
MicroSDHC ? ?
LCD TD028TTEC1 module using a Toshiba JBT6K74 TFT LCD Driver Chipset? ?
Touch Screen ? Connected to the SMedia Graphic Accelerator, no other docs needed
Vibrator Simple motor attached to the PWM output of the s3c2442
Sound Codec Wolfson Codec Data sheet available at http://www.wolfsonmicro.com/uploads/documents/en/WM8753.pdf is that enough?
Sound Amplifier National Semiconductor LM4857 Data sheet available at http://www.national.com/ds.cgi/LM/LM4857.pdf is that enough?
Power management Philips PCF50606 Documented at http://www.rockbox.org/twiki/pub/Main/DataSheets/pcf50606.pdf
Battery Proprietary Thankfully it seems to be compatible with a widely used and cheap other one ;)
JTAG ? Standardized, BSDL file for the CPU will hopefully become available