Commit Graph

11 Commits

Author SHA1 Message Date
mycroft 121dfd8f1b Change PCI_MAPREG_{MEM,IO}_SIZE() to use the standard `x & -x' trick to select
the lowest bit set.  This isn't any more or less valid according to the PCI
spec, but it deals with lame devices that don't implement all of the top
bits.
1996-08-10 15:42:33 +00:00
cgd f160e92962 revert PCI_MAPREG_IO_ADDR_MASK and PCI_MAPREG_IO_SIZE_MASK to their old
values, i.e. 0xfffffffe and 0xffffffff respectively.  The changed
definitions were incorrect, according to the PCI Local Bus Specification
(Revision 2.0).  Further rationale and a workaround for the broken
devices that instigated the change provided in a message to
current-users@netbsd.org, dated Mon, 05 Aug 1996 22:06:58 -0400,
message ID 16773.839297218@ux2.sp.cs.cmu.edu>.
1996-08-06 02:11:25 +00:00
mycroft a2aa46e1c4 Add PCI_MAPREG_{IO,MEM}_SIZE(), and use them. 1996-07-26 07:13:52 +00:00
mycroft 53f21c73fb Changes PCI_MAPREG_IO_ADDR_MASK to 0xfffe. 1996-07-26 06:35:35 +00:00
cgd 87328287b7 modify these to provide a new, better-specified PCI interface
(soon to be documented on mailing lists; eventually in section 9 manual
pages), most importantly:
	(1) support interrupt pin swizzling on non-i386 systems with
	    PCI-PCI bridges (per PPB spec; done, but meaningless, on i386).
	(2) provide pci_{io,mem}_find(), to determine what I/O or memory
	    space is described by a given PCI configuration space
	    mapping register.
	(3) provide pci_intr_map(), pci_intr_string(), and
	    pci_intr_{,dis}establish() to manipulate and print info about
	    PCI interrupts.
	(4) make pci functions take as an argument a machine-dependent
	    cookie, to allow more flexibility in implementation.
1996-03-27 04:08:24 +00:00
cgd 72060dc6fa add definitions for the BIST/Header Type/Latency Timer/Cache Line Size
configuration space register, and use it to determine whether or not
a given PCI device uses multiple functions.
1996-03-27 00:13:50 +00:00
cgd c8487c701e reorganize mapping register definitions 1996-03-04 19:30:50 +00:00
mycroft fc427776a7 Add stuff for I/O mapping. 1995-07-27 00:29:02 +00:00
cgd 4f7335a75a macros to split out various parts of PCI registers, adjust constants
to match.  (now, comparisons are comparisons, code doing them doesn't
have to mask.)  define types for the various parts of the registers'
contents, where practical.
1995-06-18 01:34:01 +00:00
cgd 022ee8f7fe new RCS ID format. 1994-10-27 04:14:23 +00:00
mycroft 6df721be97 Add PCI autoconfiguration support. 1994-08-09 00:47:46 +00:00