Hi everybody !
As you guess I need some help... Indeed I'm a newbie in Linux embedded
development and I have to work on a linux ppc based board project.
In fact, I have to adapt an existing VxWorks application to a linux montavista
hardhat application.
My problem is the following : I need to find a linux equivalent routine of the
intConnect() VxWorks routine. You can see the man page of taht function below :
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NAME
intConnect( ) - connect a C routine to a hardware interrupt
SYNOPSIS
STATUS intConnect
(
VOIDFUNCPTR * vector, /* interrupt vector to attach to */
VOIDFUNCPTR routine, /* routine to be called */
int parameter /* parameter to be passed to routine */
)
DESCRIPTION
This routine connects a specified C routine to a specified interrupt vector.
The address of routine is generally stored at vector so that routine is called
with parameter when the interrupt occurs. The routine is invoked in supervisor
mode at interrupt level. A proper C environment is established, the necessary
registers saved, and the stack set up.
The routine can be any normal C code, except that it must not invoke certain
operating system functions that may block or perform I/O operations.
This routine generally simply calls intHandlerCreate( ) and intVecSet( ). The
address of the handler returned by intHandlerCreate( ) is what actually goes in
the interrupt vector.
This routine takes an interrupt vector as a parameter, which is the byte offset
into the vector table. Macros are provided to convert between interrupt vectors
and interrupt numbers, see intArchLib.
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The only hardware interrupts routine I found through my investigations is the
request_irq(...). But the problem is that request_irq do not allow me to pass
an argument to the handler... So is there a routine that allows it or is there
a way to adapt the request_irq() to my case.
I thougt to declare a global variable to store my param but I use multitasking.
So bad way...
Thanks a lot for helping the newbie that I am...
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