Hi there,
I have explicitly cc'ed Gilles as this patch affects the posix skin.
In the light of the recent discussions, the AUTOENA flag has been converted to NOAUTOENA and the IRQ line is re-enabled on return from xnintr_irq_handler() and shirq brothers by default.
Also XN_ISR_CHAINED -> XN_ISR_PROPAGATE.
I'm still not sutisfied with results, namely - return values of ISR. But, well, this is a quite separate question to the shirq support so the later one should not remain in pending status only because of that.
I still would like to see something along scalar values : NONE, HANDLED, PROPAGATE and xnintr_disable() being called in ISR to defer IRQ line enabling (not .ending -> PROPAGATE does it).
(*)
Currently, there is a XN_ISR_NOENABLE bit which asks the real-time layer to defer the IRQ line, Warning!, .ending (and not just enabling) until later. In common case, xnarch_end_irq() must be called by the rt_task that stands for a bottom half (and not just xnintr_enable() - this may not work on ppc).
This adds a bit of confusion and we will avoid it with (*) scheme. So this is a subject to change in the future.
As I pointed out in another message, the implementation for PPC is not yet clear at the moment. That's it...
Ok, are there any objections as to the current patch? If no, please apply.
CHANGELOG.patch is here https://mail.gna.org/public/xenomai-core/2006-02/msg00154.html
--
Best regards,
Dmitry Adamushko
shirq-combo.patch
Description: Binary data
shirq-KConfig.patch
Description: Binary data
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