From: vincent_kuo@sercomm.com
Date: Mon Jul 22 2002 - 23:46:53 EDT
Dear all,
I am using the TI-TMS320DSC21 EVM board (it's ARM7 CPU). I meet some
problems and needs help.
I know that we could use "request_irq", "enable_irq"... function calls to
let the interrrupt run into our interrupt routine. But for this special CPU, it
could set its GIO [0-7] as an external interrupt. The CPU has 32 GIO [0-31],
they are all simply memory I/O, except the first 8 GIO could declare both I/O
mode and Interrupt mode (GIO[0-7]).
Now our H/W engineer sets some GIO to be an interrupt and my driver needs
to detect the interrupt to do some job. How could I use those interrupt in my
own driver code? By the way, I got some object codes which could access those
GIO as I/O mode (io read/write). But I don't know how to register those
interrupts in my driver.
In x86 system, the "request_irq" function could only register IRQ 1-15. I
have no idea about the external interrupt. Could anyone give me some advise?
Thanks.
Regards,
--
Vincent C. Kuo
vincent_kuo@sercomm.com
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Take a little time, I will be your friend. ^-^
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