Cleanup the recent cardbus cleanups. This fixes some of the panics
that I introduced with -v. However, other problems still remain (including
the loss of interrupts).

Don't use __FBSDID yet. Looks like most (all?) of the rest of the kernel
doesn't do that.

Implement hw.cardbus.debug and hw.cardbus.cis_debug to help debug some
of the cardbus problems that people may start seeing.

Two style(9) fixes:
- return(foo); (note parens)
- use __FBSDID()

Check for NULL on resource allocation. For the moment, punt, but we should
be smarter about a) cleanup and b) fallback.

Use the pci.c code wherever possible, rather than copying all the pci
code into cardbus and s/pci/cardbus. This exposes a few pci_*
functions that are now static.

This work is similar to work Justi

Use the pci.c code wherever possible, rather than copying all the pci
code into cardbus and s/pci/cardbus. This exposes a few pci_*
functions that are now static.

This work is similar to work Justin posted to the mobile list about a
year or two ago, which I have neglected since then.

This is a subset of his current work with the multiple inheritance
newbus architecutre. When completed, that will eliminate the need for
pci/pci_private.h.

Similar work is needed for the cardbus_cis and pccard_cis code as well.

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Part two of this NEWCARD update:

Briefly, the significant changes include:
* Way better resource management in pccbb, pccard and cardbus.
* pccard hot-removal now appears to work.
* support pre-f

Part two of this NEWCARD update:

Briefly, the significant changes include:
* Way better resource management in pccbb, pccard and cardbus.
* pccard hot-removal now appears to work.
* support pre-fetchable memory in cardbus.
* update cardbus to support new pci bus interface functions.
* Fix CIS reading to no longer use rman_get_virtual().

What's not there, but in the works:
* pccard needs to do interrupt properly and not read the ISR on single
function cards.
* real resource management for pccard
* a complete implementation of CIS parsing
* need to look into how to correctly use mutex in pccbb

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Non-functional changes to NEWCARD stuff.
This is the first part of a two-part update to NEWCARD. Changes in this
commit are non-functional, and includes the following:
* indentation and other chang

Non-functional changes to NEWCARD stuff.
This is the first part of a two-part update to NEWCARD. Changes in this
commit are non-functional, and includes the following:
* indentation and other changes to meet style(9).
* other minor style consistancy changes
* addition of comments
* renaming of device_t variables to be consistant across all of NEWCARD.

(note that not all style violations are fixed in this commit -- those that
aren't will be clobbered by the next commit.)

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Use bus_space when reading CIS. This allows us to access it in 8 bit
mode, which is what the standard mandates.

Submitted by: Takanori Watanabe-san
Reviewed by: jhb

This cannot possibly be right:
foo(int *nret)
{
for (i = 0; i < nret; i++) {
free(array[i], ....
Fix to do the logically correct thing.. (s/nret/*nret/)

* Better kld support in pccbb/cardbus
- pccbb no longer needs to remember whether a card is inserted.
- pccbb reissues insertion on load of cardbus/pccard modules.
- got rid of unnecessary dela

* Better kld support in pccbb/cardbus
- pccbb no longer needs to remember whether a card is inserted.
- pccbb reissues insertion on load of cardbus/pccard modules.
- got rid of unnecessary delays in power functions.
- Cardbus children are no longer deleted if probe/attach fails.
- non-attached child devices are reprobed at driver_added.

* CARD interface to read CIS
- added card_cis_read/card_cis_free interface to read arbitrary CIS
data. This currently is only implemented in cardbus.

* pccard begins to work
- pccard can now use higher memory space (and uses it by default).
- set_memory_offset interface changed.
- fixed ccr access, which was broken at multiple locations.
- implement an interrupt handler - pccard can now share interrupts.
- resource alloc/release/activate/deactivate functions gutted: some
resources are allocated by the bridge before the child device is
probed or attached. Thus the resource "belongs" to the bridge, and
the pccard_*_resource functions need to fudge the owner/rid.
- changed some error conditions to panics to speed debugging.

* Mutex fix - Giant is entered at the beginning of thread

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Remove an unused variable.

Properly advance to the next image while searching for the ROM image
that contains CIS data.

KNF an if statement.

This fixes several problems with CIS as suggested by Justin Gibbs:
4) The cardbus CIS code treats the CIS_PTR as a mapping register if
it is mentioned in the CIS. I don't have a spec handy to und

This fixes several problems with CIS as suggested by Justin Gibbs:
4) The cardbus CIS code treats the CIS_PTR as a mapping register if
it is mentioned in the CIS. I don't have a spec handy to understand
why the CIS_PTR is mentioned in the CIS, but allocating a memory range
for it is certainly bogus. My patch ignores bar #6 to prevent the
mapping.
[The pccard spec says that BAR 0 and 7 (-1 and 6 in thic case since we
did a minus one) is "reserved". The off by 1 error has been fixed.
also bar=5 is invalid for IO maps, so we check it.]

5) The CIS code allocated duplicate resources to those already found
by cardbus_add_resources(). The fix is to pass in the bar computed
from the CIS instead of the particular resource ID for that bar,
so bus_generic_alloc_resource succeeds in finding the old resource.
[fixed, also removed superfluous (and incorrect) writing back to the
PCI config space.]

7) The CIS code seems to use the wrong bit to determine rather a particular
register mapping is for I/O or memory space. From looking at the
two cards I have, it seems TPL_BAR_REG_AS should be 0x10 instead
of 0x08. Otherwise, all registers that should be I/O mapped gain
a second mapping in memory space.
[Oops, the spec does say 0x10..., fixed]

Submitted by: Justin Gibbs

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Oops, broke CIS reading from ROM on my last commit.
This should fix it.

1) When mucking with mapping registers, it is best to *not* have
io or memory space access enabled. This patch defers the setting
of these bits until after all of the mapping registers are pro

1) When mucking with mapping registers, it is best to *not* have
io or memory space access enabled. This patch defers the setting
of these bits until after all of the mapping registers are probed.
It might be even better to defer this until a particular mapping
is activated and to disable that type of access when a new
register is activated.

2) The PCI spec is very explicit about how mapping registers and
the expansion ROM mapping register should be probed. This patch
makes cardbus_add_map() follow the spec.

3) The PCI spec allows a device to use the same address decoder for
expansion ROM access as is used for memory mapped register access.
This patch carefully enables and disables ROM access along with
resource (de)activiation.

This doesn't include the prefetching detection stuff (maybe later when code is written to actually turn on prefetching). It also does not use the PCI definitions (yet, I'll try to put this in all at once later)

Submitted by: Justin T. Gibbs

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overhaul cis functions to read cis tuple by tuple (instead of all at once).
Also fix incorrect parsing of BAR.

Initial commit of NEWCARD cardbus side (that actually compiles and works)

Files:
dev/cardbus/cardbus.c
dev/cardbus/cardbusreg.h
dev/cardbus/cardbusvar.h
dev/cardbus/cardbus_cis.c
dev/cardbus/ca

Initial commit of NEWCARD cardbus side (that actually compiles and works)

Files:
dev/cardbus/cardbus.c
dev/cardbus/cardbusreg.h
dev/cardbus/cardbusvar.h
dev/cardbus/cardbus_cis.c
dev/cardbus/cardbus_cis.h
dev/pccbb/pccbb.c
dev/pccbb/pccbbreg.h
dev/pccbb/pccbbvar.h
dev/pccbb/pccbb_if.m

This should support:
- cardbus controllers:
* TI 113X
* TI 12XX
* TI 14XX
* Ricoh 47X
* Ricoh 46X
* ToPIC 95
* ToPIC 97
* ToPIC 100
* Cirrus Logic CLPD683x
- cardbus cards
* 3c575BT
* 3c575CT
* Xircom X3201 (includes IBM, Xircom and, Intel cards)
[ 3com support already in kernel, Xircom will be committed real soon now]

This doesn't work with 16bit pccards under NEWCARD.

Enable in your config by having "device pccbb" and "device cardbus".
(A "device pccard" will attach a pccard bus, but it means you system have
a high chance of panicing when a 16bit card is inserted)

It should be fairly simple to make a driver attach to cardbus under
NEWCARD -- simply add an entry for attaching to cardbus on a new
DRIVER_MODULE and add new device IDs as necessary. You should also make
sure the card can be detached nicely without the interrupt routine doing
something weird, like going into an infinite loop. Usually that should
entail adding an additional check when a pci register or the bus space is
read to check if it equals 0xffffffff.

Any problems, please let me know.

Reviewed by: imp

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