[lwip-users] lwip - but how to start

[Steffen Damelang]

Hi ...

 

I want to use lwIP on a PowerPC-platform (embedded) without any operating system.

I`ve read the "Design and Implementation of the lwIP TCP/IP-Stack" from Adam Dunkel. The upper API is described very good and there are no problems.

 

But I don`t know exactly what to do to get the connection between my device-driver and the stack.

 

For incoming packages I have to call the ip_input()-function - right?

For outgoing packages the function from output-function-pointer will be called - right ?

 

The function of semaphores is already implemented here.

The function of mBox`es is not implemented - but I think I know how to use that.

The timeout is implemented too.

 

I wanted to use the NO_SYS define (to 1) and then compile. The compile will abort because of the unknown SYS_MBOX_NULL and SYS_SEM__NULL in api_lib.c. I wanted to use the stack "as-it-is" and only change my header-Files and driver-files. So i can later change the stack on updates and only adapt my header-files. Can you tell me where to make the defines (they are in sys_arch.h now).

 

Is there any description of porting the stack available. I think such a document for "getting started" on porting the stack ?

 

Thanks .. and best regards

Steffen