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khwl

Page history last edited by Vasile 11 years, 9 months ago

khwl.o

khwl.o (khwl.o) is a driver for working with the MG35 hardware.

Version: N/A

Status: N/A

khwl.o

Description

khwl.o contains functions for accessing eeprom, i2c bus, EM85xx, video memory, overlay, etc. The driver seems to be accesed via /dev/realmagichwl0.

Originally written in C (in COM style), it has many indirect method calls, and is therefore somewhat difficult to decode.
Fortunately, a large part of the KHWL module (25%) is microcode. Another 5% is unused for (eg) hardware detection, multiple board support, etc. And 20% for strings, mostly referring to included headers.
Currently handles basic hardware reset, microcode loading, dram/i2c/pio driver.
Parts left to build: tv encoder driver, mpeg decoder driver, board driver, eeprom driver, properties.
C coders welcome. Must speak Assembly.

There are some references to the following chips, which seem to be present in the Kiss player: Sii168 (DVI transmitter), Sm2288, Saa7114 and Fs400. Not sure if they are present in MG35.

Inside there is also a list of products (??). The same list is present in the corresponding KiSS module, that's why we presume they are both based on the Sigma Designs SDK.

HARMONY2

SYMPHONY2_ULTRA

SYMPHONY2

JASMINE2

SHVC

SHAC

MELODY

BROADCAST

BROADCAST_LITE

XCARD

PVR_DIGITAL

SYMPHONY

QUADSLAVE

QUADMASTER

CLARION

GALAXY2000

VE2000

NE4000_SIGMATV

NE4000

ANALOG_PVR

NE2000STPC

NE2000TV

NE2000

There are also references to EM84xx, which means this based on an even older SDK. Note: there are some source files floating in the internet for the EM84xx SDK, maybe they prove useful.

A GPLed version of this module for the KiSS player is here.