Date: Wed, 30 Oct 2002 11:55:06 -0800 (PST) From: Ian Dowse <iedowse@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/dev/pci isa_pci.c Message-ID: <200210301955.g9UJt6aw085744@repoman.freebsd.org>
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iedowse 2002/10/30 11:55:06 PST
Modified files:
sys/dev/pci isa_pci.c
Log:
Save and restore the interrupt Edge/Level Control Registers (ELCR)
across system suspends on the Intel 82371AB PCI-ISA bridge. On a
Sony Vaio C1XD that I have, these registers are not set correctly
after an ACPI resume. The result is that after resuming, a shared
IRQ is left in edge-triggered mode so the interrupt can later become
jammed in a state where the line remains asserted, but the handler
is never called.
Reviewed by: jhb
Revision Changes Path
1.7 +88 -5 src/sys/dev/pci/isa_pci.c
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