--- In ts-7000%40yahoogroups.com">ts-7000
yahoogroups.com, "jo_xavier18" <jo_xavier18...>
wrote:
>
>
> Charlie is this also valid to the ts7400, am i right? This is my
board.
>
> How do can use EGPIOs to generate irqs. The manual tell me that
it's
> possible and it is not in the example codes.
Sorry, I haven't used the TS-7400, but I believe it is mostly the
same. You can compare the manuals.
Also the ep930x manual from cirrus would help you a lot, but
remember that not all of the ep9302 pins are brought out on the TS
boards. For example, I think the TS-7400 is the only TS board to
bring out SPI and AC97, even though it's a ep9302 feature.
>
> Still About the example codes, what gpio pins and ports the code
>; tsdio.o is using?
I believe tsdio only deals with PortB gpio pins.
Regards, ..... Charlie
>
> regards,
> Jonas.
>
>
>
>
>
>
> > Hi Jonas --
> >
> > --- In ts-7000%40yahoogroups.com">ts-7000yahoogroups.com, "jo_xavier18" <jo_xavier18>
> > wrote:
> > >
>; > > Charlie, thanks for the answers, but i forgot some details.
> > >
> > > I'm trying to implement software irqs using DIO_16, 17 and 18
of
> > GPIO
>; > > (three inputs) and i'm not using irq vectors as in the books
you
> > pass
>; > > me (i read this chapters). I'm reading a value from a button
and i
> > > need to generate the irq and pass them to the user. The result
of
> > the
> > > request_irq is "-22" that means "invalid argument"
> > > (in /linux24/include/asm-arm/errno.h).
> >
> > You could look at the two files tsdio.tar.gz and gps_pps.tgz (in
the
> > Yahoo groups' file section) for examples of using request_irq
with
> > GPIO. One may even do just what you want ...
> >
> > Are you sure you need to do this in the kernel? You could look
at
> > the TS keypad.c file for another (polling) approach.
> >
> > Regards, ....... Charlie
> >
> >
> > >
> > > The hole is more in low! hehehhehe...
> > >
> > > Best regards!
> > >
> > > Jonas.
> > >
> > >
> > >
> > > --- In ts-7000%40yahoogroups.com">ts-7000yahoogroups.com, "charliem_1216"
<charliem_1216>
> > wrote:
> > > >
>; > > > Hi Jonas --
> > > >
> > > > --- In ts-7000%40yahoogroups.com">ts-7000yahoogroups.com, "jo_xavier18" <jo_xavier18>
> > > > wrote:
> > > > >
>; > > > > Hi! Is there some body that knows how to add new IRQ
number in
> > the
> > > > > /linux24/include/asm-arm/arch-ep93xx/irqs.h file? I know
that
> > i'll
> > > > to
> > > > > compile the kernel again...
> > > > >
> > > > > I have a problem because i'm trying to implement irqs in
the
> > > > ts7400 and
> > > > > when i use the function 'request_irq()' (in <asm/sched.h>)
my
> > > > request
> > > > > becomes lower zero (the normal is zero if it's ok).
> > > >
> > > > The negative number is your error code, trying to tell you
> > > > something. -EBUSY, for example, usually means the interrupt
is
> > > > already claimed.
> > > >
> > > > >I've tested all
> > > > > numbers of irqs (from 0 until 64) and that's ok, but when
i
> > put
> > > > any
> > > > > other value i have an error.
> > > >
> > > > The chip only has 64 IRQs. The EP9301 User Guidebook has
more
> > info
> > > > on this:
> > > >
http://www.cirrus.com/en/pubs/manual/EP93xx_Users_Guide_UM1.pdf
> > > >
> > > > Also you might find LDD book by Rubini & Corbett helpful:
> > > > http://www.xml.com/ldd/chapter/book/ch09.html
> > > > (Use second edition for 2.4, third edition for 2.6 kernels).
> > > >
> > > > What type of hardware are you trying to service?
> > > >
> > > > Regards, ....... Charlie
> > > >
> > > > >
> > > > > Jonas Xavier.
> > > > >
>; > > >
>; > >
>; >
>;
.
