John Baldwin 030b156bf0 Add a simple mini-driver for the ELCR register. Originally, the ELCR ... register controlled the trigger mode and polarity of EISA interrupts. However, it appears that most (all?) PCI systems use the ELCR to manage the trigger mode and polarity of ISA interrupts as well since ISA IRQs used to route PCI interrupts need to be level triggered with active low polarity. We check to see if the ELCR exists by sanity checking the value we get back ensuring that IRQS 0 (8254), 1 (atkbd), 2 (the link from the slave PIC), and 8 (RTC) are all clear indicating edge trigger and active high polarity. This mini-driver will be used by the atpic driver to manage the trigger and polarity of ISA IRQs. Also, the mptable parsing code will use this mini driver rather than examining the ELCR directly.		2004-05-04 20:07:46 +00:00
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atpic_vector.S	Remove advertising clause from University of California Regent's license,	2004-04-05 21:29:41 +00:00
atpic.c	Convert callers to the new bus_alloc_resource_any(9) API.	2004-03-17 17:50:55 +00:00
clock.c	Remove advertising clause from University of California Regent's license,	2004-04-05 21:29:41 +00:00
elcr.c	Add a simple mini-driver for the ELCR register. Originally, the ELCR	2004-05-04 20:07:46 +00:00
icu.h	Remove advertising clause from University of California Regent's license,	2004-04-05 21:29:41 +00:00
isa_dma.c	Remove advertising clause from University of California Regent's license,	2004-04-05 21:29:41 +00:00
isa_dma.h	Remove advertising clause from University of California Regent's license,	2004-04-05 21:29:41 +00:00
isa.c	sync comment with i386's isa.c.. This removes a comment that is YEARS	2004-03-17 21:45:55 +00:00
isa.h	Remove advertising clause from University of California Regent's license,	2004-04-05 21:29:41 +00:00
nmi.c	Remove advertising clause from University of California Regent's license,	2004-04-05 21:29:41 +00:00
timerreg.h	Remove advertising clause from University of California Regent's license,	2004-04-05 21:29:41 +00:00