Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

- There's no need to overwrite the default device method with the default
one. Interestingly, these are actually the default for quite some time
(bus_generic_driver_added(9) since r52045 and bus_generic_print_child(9)
since r52045) but even recently added device drivers do this unnecessarily.
Discussed with: jhb, marcel
- While at it, use DEVMETHOD_END.
Discussed with: jhb
- Also while at it, use __FBSDID.

strict kobj signatures: fix assortment of bus_read_ivar impls

Reviewed by: imp, current@
Approved by: jhb (mentor)

Make the eisa probe messages just like all the others in the system.
Make the eisa no match printf closer to pci.

Now that the Adaptec 2842 has its own probe routine, no need to have
a comment saying its probe routine needs to be fixed.

Style(9) pass before some planned larger changes.
o return (foo);
o if (a == NULL) in preference to if (!a)
o () and {} reduction
o minor indentation fixes

Start each of the license/copyright comments with /*-, minor shuffle of lines

Remove outb to "prime" the EISA ID registers of each slot. This was
only required to support probing of the Adaptec 284X VLB SCSI controller
which becomes visible in EISA space if you perform these writes. 284X
probing is moving to an ISA attachment.

Use the slot, not an otherwise unused index variable as the probe offset.
This passed testing because the variable happened to be 0 in most cases.

Compile warning found by: David Syphers <dsyphers AT u.washington.edu>

Change EISA probing to be less invasive. Instead of probing all slots
unconditionally, stop after the first one (system board) if no EISA hardware
is detected. This fixes a boot hang (i.e. Thinkpad) when ACPI is disabled.
Also, split the probe code into a separate function and do some style cleanup.

Note that the Adaptec 2842 VLB controller probe is broken by this change
and will fail to probe. It should be fixed separately.

When adding files to the repo, it is very important to not forget
the cvs add function.

Step 1 in moving EISA devices to kobj/newbus. Use kobj methods for
all of the interface between the driver and the bus. This will enable
us to stop special casing eisa bus attachments in modules and treat them
like we treat all other busses.

In the longer run, we need to eliminate much (all?) of these interfaces
and switch to using the standard bus_alloc_resource(), but that's not
done right now.

# I've not updated the modules to include eisa, etc, just yet

Tested on: Compaq Proliant 3000/333 purchased for eisa work

Use __FBSDID().
Also some minor style cleanups.

Deprecate machine/limits.h in favor of new sys/limits.h.
Change all in-tree consumers to include <sys/limits.h>

Discussed on: standards@
Partially submitted by: Craig Rodrigues <rodrigc@attbi.com>

Add tunable "hw.eisa_slots" to allow overriding the default number
of slots (10).

Argh, isa(4), eisa(4) and mca(4) now attach to legacy(4) instead of
nexus(4) in the case of machines w/o equivalent bridges on a PCI bus.

Reported by: winter
Pointy hat to: jhb

- Use the __BUS_ACCESSOR macro for EISA_ACCESSOR instead
of reimplementing it.
- #undef EISA_ACCESSOR after use like we do for other accessors.

Reviewed by: tmm

GC various bits and pieces of USERCONFIG from all over the place.

Remove __P.

Unbreak EISA. The PCI-EISA bridge bus is named `eisab', not `isab'.
This mistake seems to have been benign until very recently, probably
until msmith's PCI code reshuffle which cleaned up a lot of things.

Still, my AIC7770 doesn't work again, but it at least probes the
EISA bus now.

Mechanical change to use <sys/queue.h> macro API instead of
fondling implementation details.

Created with: sed(1)
Reviewed by: md5(1)

Convert more malloc+bzero to malloc+M_ZERO.

Submitted by: josh@zipperup.org
Submitted by: Robert Drehmel <robd@gmx.net>

Back out the previous change to the queue(3) interface.
It was not discussed and should probably not happen.

Requested by: msmith and others

Change the way that the queue(3) structures are declared; don't assume that
the type argument to *_HEAD and *_ENTRY is a struct.

Suggested by: phk
Reviewed by: phk
Approved by: mdodd

Pre 4.0 tidy up.

Collect together the components of several drivers and export eisa from
the i386-only area (It's not, it's on some alphas too). The code hasn't
been updated to work on the Alpha yet, but that can come later.

Repository copies were done a while ago.
Moving these now keeps them in consistant place across the 4.x series
as the newbusification progresses.

Submitted by: mdodd

Remove the 'ivars' arguement to device_add_child() and
device_add_child_ordered(). 'ivars' may now be set using the
device_set_ivars() function.

This makes it easier for us to change how arbitrary data structures are
associated with a device_t. Eventually we won't be modifying device_t
to add additional pointers for ivars, softc data etc.

Despite my best efforts I've probably forgotten something so let me know
if this breaks anything. I've been running with this change for months
and its been quite involved actually isolating all the changes from
the rest of the local changes in my tree.

Reviewed by: peter, dfr

Delete unneeded #include

Submitted by: phk

$Id$ -> $FreeBSD$

I'm not sure how this wasn't in the last commit but anyhow...
'int irq' -> 'struct irq_node *irq'

Move the specification of EDGE/LEVEL triggered interrupts to
eisa_add_intr() which now takes an additional arguement (one of
EISA_TRIGGER_LEVEL or EISA_TRIGGER_EDGE).

The flag RR_SHAREABLE has no effect when passed to
bus_alloc_resource(dev, SYS_RES_IRQ, ...) in an EISA device context as
the eisa_alloc_resource() call (bus_alloc_resource method) now deals
with this flag directly, depending on the device ivars.

This change does nothing more than move all the 'shared = inb(foo + iobsse)'
nonesense to the device probe methods rather than the device attach.

Also, print out 'edge' or 'level' in the IRQ announcement message.

Reviewed by: dfr

Restore the pre-new_bus behavior of printing out the reserved resources
during device announcement. (irq, ioport, maddr)

Reviewed by: dfr, peter

Alter the behavior of sys/kern/subr_bus.c:device_print_child()

- device_print_child() either lets the BUS_PRINT_CHILD
method produce the entire device announcement message or
it prints "foo0: not found\n"

Alter sys/kern/subr_bus.c:bus_generic_print_child() to take on
the previous behavior of device_print_child() (printing the
"foo0: <FooDevice 1.1>" bit of the announce message.)

Provide bus_print_child_header() and bus_print_child_footer()
to actually print the output for bus_generic_print_child().
These functions should be used whenever possible (unless you can
just use bus_generic_print_child())

The BUS_PRINT_CHILD method now returns int instead of void.

Modify everything else that defines or uses a BUS_PRINT_CHILD
method to comply with the above changes.

- Devices are 'on' a bus, not 'at' it.
- If a custom BUS_PRINT_CHILD method does the same thing
as bus_generic_print_child(), use bus_generic_print_child()
- Use device_get_nameunit() instead of both
device_get_name() and device_get_unit()
- All BUS_PRINT_CHILD methods return the number of
characters output.

Reviewed by: dfr, peter

Add a hook for a bus to detect child devices which didn't find drivers.
This allows the bus to print an informative message about unknown devices.

Submitted by: Matthew N. Dodd <winter@jurai.net>

Handle suspend/resume methods

Obtained from: Warner Losh <imp@freebsd.org>

Fix a [start,end] vs [start,count] botch that corrupted the resource
manager and prevented IOPort allocation beyond the first EISA slot from
working. subr_rman.c should have trapped this on the way into the system
rather than tripping over the wreckage.

Head banged into wall repeatedly by: "Matthew N. Dodd" <winter@jurai.net>

Don't detect an EISA bus unless we see a "card" there somewhere. An EISA
motherboard will have a card for the "motherboard" on slot 0.
eisa0: <EISA bus> on motherboard
mainboard0: <ASU5101 (System Board)> at slot 0 on eisa0
This should stop the probe "detecting" an EISA bus everywhere that has
a 'controller eisa0' line regardless of whether it's really there.

Move the declaration of the interrupt type from the driver structure
to the BUS_SETUP_INTR call.

Use consistant function definitions which also silences a warning.

GC some now unused (and #if 0) code.

EISA can (or will) be a child of the i386 nexus on non-PCI systems.

Set the bus description for EISA, like it is for ISA.

Implement an EISA new-bus framework. The old driver probe mechanism
had a quirk that made a shim rather hard to implement properly and it was
just easier to convert the drivers in one go. The changes to the
buslogic driver go beyond just this - the whole driver was new-bus'ed
including pci and isa. I have only tested the EISA part of this so far.

Submitted by: Doug Rabson <dfr@nlsystems.com>

Replace includes of <sys/kernel.h> with includes of
<sys/linker_set.h> in those files that use only the linker set
definitions.

Examine all occurrences of sprintf(), strcat(), and str[n]cpy()
for possible buffer overflow problems. Replaced most sprintf()'s
with snprintf(); for others cases, added terminating NUL bytes where
appropriate, replaced constants like "16" with sizeof(), etc.

These changes include several bug fixes, but most changes are for
maintainability's sake. Any instance where it wasn't "immediately
obvious" that a buffer overflow could not occur was made safer.

Reviewed by: Bruce Evans <bde@zeta.org.au>
Reviewed by: Matthew Dillon <dillon@apollo.backplane.com>
Reviewed by: Mike Spengler <mks@networkcs.com>

Fix list corruption and memory leak that could occur when
releasing EISA irqs.

Staticize.

Remove a bunch of variables which were unused both in GENERIC and LINT.

Found by: -Wunused

Removed unused #includes.

Add shared EISA interrupt support.
Clean up the match routines so that they return const char *

#include <machine/limits.h> explicitly in the few places that it is required.

Add several casts and include several header files to eliminate compiler
warnings.

Removed unused #includes.

Various stylistic improvements regarding num_eisa_slots & co.:

. properly declare the variable in in a .h file, as opposed to
using a private extern declaration in userconfig.c;
. move the definition of EISA_SLOTS and therefore the inclusion of
opt_eisa.h into eisaconf.c.

Since i don't see that anybody is implementing a more correct EISA
probing anytime soon, make EISA_SLOTS a fully supported option. It's
required for the HP NetServer LC series machines.

Next stop: make dset(8) aware of it as well.

Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not
ready for it yet.

Make the long-awaited change from $Id$ to $FreeBSD$

This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore. This update would have been
insane otherwise.

Add a small hack to UserConfig that allows to override the number of
EISA slots to probe. This is mainly intended to allow installing the
system on an HP Netserver with an on-board AIC7xxx EISA SCSI
controller, that is sitting on EISA slot # 11.

Documentation updates explaining this hack will follow shortly.

Note that this can go away again as soon as the EISA device probing
is more intelligent about the address space clash with the PCI address
space.

2.2 candidate.

Not objected by: freebsd-core :)

Removed more devconf leftovers.

Various cleanups for remanents of devconf.

Remove devconf, it never grew up to be of any use.

Don't depend in the kernel on the gcc feature of doing arithmetic on
pointers of type `void *'. Warn about this in future.

Clean up -Wunused warnings.

Reviewed by: bde

Turn on SCB paging for aic7770 chips rev E or greater.

Update my copyrights.

Removed unused declaration of bootverbose.

aha1742.c:
Cleanse the SCSI subsystem of its internally defined types
u_int32, u_int16, u_int8, int32, int16, int8.
Use the system defined *_t types instead.

eisaconf.c:
Cosmetic formatting chagnes.

3c5x9.c:
The eisaconf probe for the 3Com 3c579 and the 3c509 when in eisa
configuration mode.

aha1742.c aic7770.c bt74x.c:
Only call eisa_registerdev after the probe is successfully.

eisaconf.c:
Increase kdc->kdc_datalen during the eisa_reg* functions instead of
in the eisa_add* functions since eisa_registerdev has already been
called and we have a kdc to manipulate.

Free the externalizing buffer.

aha1742.c aic7770.c bt74x.c
- Call eisa_registerdev as soon as we have a device match. This allows the
"eisa_add_*" routines to tweak kdc_datalen as the kdc grows and shrinks.

eisaconf.c
- externalize the linked lists that hold our ioaddrs and maddrs.

Fix a bunch of spelling errors in the comment fields of
a bunch of system include files.

Another pass through eisaconf. Ioaddrs and Maddrs are link lists now.
The Bt driver is the only one that actually registers multiple addresses.

Probe output is formatted to 80 columns.

The long awaited stability patch set for the aic7xxx driver:

aic7770.c:
Simplify the initialization of adapters by pulling all card specific
initialization to the card specific modules.

eisaconf.c:
outb 0x80 instead of 0xc80. The top byte is truncated anyway, and 0x80
was what was intended.

Staticize and cleanup.
Make debug variable sysctl aware in 1742.

Don't staticize again (twice).

Cleaned up includes.

Staticize again.

Completed function declarations and/or added prototypes.

Mega commit for sysctl.
Convert the remaining sysctl stuff to the new way of doing things.
the devconf stuff is the reason for the large number of files.
Cleaned up some compiler warnings while I were there.

Modify the kdc_description for eisa0 to include the system board ID.

Add the mainboard_drv into the eisa driver linker set so that you can
compile eisa0 into your kernel without any other eisa devices.

Convert Adaptec 1742 driver to new eisaconf interface.

Second pass on this. Sentinal device node was an uneeded complication.
Handle kdc registration correctly. Catch ISA devices that use eisa
registration and output probe information accordingly.

lsdev will have to be updated to handle EISA devices correctly.

aic7770.c:
Set kdc_isa0 as the parent for 284X cards since its a VL card.

Probe all slots even if an EISA main board isn't found. This catches
cards like the Adaptec 284x that use EISA ID registers for identification
even when in stalled in non-EISA systems.

Use one format throught the files.

-Wall fixes.

This is a totally new implementation of eisaconf. It will hopefully
be the beginning of our move to a more dynamic (configuration manager)
based setup for all drivers. Everything seems to work except for
some devconf problems. Only the aic7xxx driver will be using this
interface until it is reviewed, revised and accepted as a good configuration
interface.

Adapt aic7770.c to use new eisaconf.

eisadevs.c is replaced by a linker set.

Remove trailing whitespace.

files for the eisa specific autoconfiguration..
don't expect this to work yet.. but at least they're here..
(hey this cvs stuff is fun!)

activate with a line exactly like the isa line in the config file,
(but specifying eisa :)
patches to come..