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windows. Right now we only support pci chips that are memory mapped.
These are the most common bridges in use today and will help a large
majority of the users.
I/O mapped PCI chips support this functionality in a different way, as
do some of the ISA bridges (but only when mounted on a motherboard).
These chips are not supported by this change.
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o ToPIC is happy with two cards now, even when the two cards are
modems.
o Fix (all?) hangs on boot when power is applied to the card. I
suspect that this will make the Ricoh bridges happier and also
make a lot of VAIO owners happy (confirm to me in private email
please :-).
o All Cardbus bridges should now support 3.3V, X.XV and Y.YV cards,
to the extent that the underlying hardware supports such cards.
(X.X and Y.Y haven't been assigned values yet :-).
o Better 3.3V support for Ricoh ISA bridges.
How:
o Don't mess with the power register when scanning the cards. It
is unnecessary and causes BADVcc conditions on many chipsets. These
in turn can cause an interrupt storm.
o Make pcic_disable reset the slot's voltage.
o Move initializing voltage for the slot until after it has been
disabled.
o Fix a lot of issues with the pcic_cardbus_power routine. We
now properly enable the card and take it out of reset after
a power change.
o When detecting the card's voltage, if we're in a BadVcc state,
direct the bridge to rescan the card for what it supports.
(we might need to in the future set the power register to 0
before doing this).
o Don't preserve CLKSTOP. need to revisit this.
o Better support for Ricoh ISA bridges for 3.3V cards.
o Don't write to PCIC_POWER directly as offten, but instead go
through the pcic_power interface.
o All cardbus bridges now default to use cardbus power control.
o Add misc register definitions.
o remove some (now) bogus comments.
Extra Special Thanks To: Scott Lamber for his kind and generous loan
of a Toshiba laptop with a ToPIC 100 in it for my use.
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o Bite the bullet and create controller types for the 6729 and also for
the 673x. Rename the 672x to 6722.
o Define minimal extended register info (just register 0xa for reading VS[12]).
# I think the last version may have broken 673x controllers, but this should
# fix them.
Tested on the 6722, but not the 6729.
Ideas from: Chiharu Shibata-san's article in bsd-nomads:15866
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These were lifted from Nakagawa-san's article in FreeBSD Press, as
well as posts from hiroyuki Aizo-san and Chiharu Shibata-san.
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is the diagnostics register at offset 0x93. When bit 5 is set in this
register, bits 4-7 in ExCA register 0x5 being 0000 are required for
pci interrupt routing. When it is clear, then bit 4 of ExCA register
0x3 is used to enable it.
The only other issue is that when you route interrupts this way, you
must read ExCA register 0x4 in order to clear the interrupt, else you
get an interrupt storm.
Deal with this requirement by setting things up. It is believed that
this won't hurt other chipsets, but other chipsets may require their
own work arounds.
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told to use IRQ 6, progam the pcic to use irq 7 instead. Evidentally,
at least some of the cards are wired this way. If you want to use irq
6, configure it. All the mapping is done just before we set the
interrupt registers. See [FreeBSD98-testers 5064] for details.
Added commentary about valid interrupts on some CBUS pc98 CL PD6722
based cards.
Submitted by: Hiroshi TSUKADA-san <hiroshi@kiwi.ne.jp>
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Add defines for PCIC_INDEX and PCIC_DATA offsets.
Change PCIC_INDEX_0 to PCIC_PORT_0
Add define for PCIC_NPORT.
Document why the vadem probe works.
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have a slightly different 3.3V support than the other clones, so
compensate as best we can. Note: 3.3V support is untested since I do
not have any 3.3V cards that I know of to test it with.
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Work through the various power commands and convert them from a "is
this a foo controller or a foo' controller or a foo''' controller" to
a cabability based scheme. We have bits in the softc that tell us
what kind of power control scheme the controller uses, rather than
relying on being able to enumerate them all. Cardbus bridges are
numerous, but nearly all implement the i82365sl-DF scheme (well, a few
implement cirrus CL-PD67xx, but those were made by Cirrus Logic!).
Add a pointer back to the softc in each pcic_slot so we can access
these flags.
Add comments that talk about the issues here. Also note in passing
that there are two differ Vpp schemes in use and that we may need to
adjust the code to deal with both of them. Note why it usually works
now.
We have 5 power management modes right now: KING, AB, DF, PD and VG.
AB is for the i82365 stpes A, B and C. DF is for step DF. PD is the
cirrus logic extensions for 3.3V while VG is the VADEM extensions for
3.3V. KING is for the IBM KING controller found on some old cards.
# I'm looking for one of those old cards or a laptop that has the KING
# bridge in it.
We have to still cheat and treat the AB parts like the DF parts
because pci isn't here yet. As far as I can tell, this is harmless
for actual old parts and necessary to work with 3.3V cards in some
laptops.
This almost eliminates all tests for controller in the code. There
are still a few unrelated to power that need taming as well.
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o Add defines for the VS[12]# bits in register 0x16.
o Add comment about what we're doing reading register 0x16 (PCIC_CDGC)
in the DF case.
o Check bit VS1# rather than a random bit I was checking due to a bogus
transcrition on my part from nakagawa-san's article.
o Add note about IBM KING and 3.3V operation from information larned from
wildboard.
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82C146. The Intel i82365SL-DF supports 3.3V cards. The Step A/B/C
parts do not appear to support this. This is hard to know for sure
since it was deduced from "compatible" parts' data sheets and the
article mentioned below.
Rework the VLSI detection to be a little nicer and not depend on
scanning cards twice. This would allow bad VLSI cards to coexist with
a good intel card, for example. We now detect i82365SL-DF cards where
before we'd detect a VLSI. For the most part, this is good, but we
run a small chance of detecting a single slot 82C146 as a i82365SL-DF.
Since I can't find a datasheet for the 82c146, I don't know if this is
a problem or not.
This work is based on an excellent article, in Japanese, by NAKAGAWA,
Yoshihisa-san that appeared in FreeBSD Press Number 4. He provided a
patch against PAO3 in his article. Since the pcic.c code has changed
some since then, I've gone ahead and cleaned up his patch somewhat and
changed how the code detects the buggy '146 cards.
I also removed the comment asking if there were other cards that
matched the 82C146 since we found one and additional information isn't
necessary.
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FreeBSD. This code doesn't work just yet, but does compile. We need
to start indirecting via the cinfo pointers, rather than directly
calling pcic_*. There may be other issues as well, but you gotta
start somewhere.
Obtained from: PAO3
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o Attempt to disable the slot when we detect that there are problems with
it in our ISR. This should make polling mode work better for more cards,
but more work may be needed. This "disabling" sets the card interrupt
register to 0. This worked for me for lots of tests in polling mode.
o Now that I've found datasheets, fix a boatload of magic numbers in the
source to make it easier to understand.
o Use a table of names rather than a big case statement.
o Cull a few of the "unused" controller types that we map to other times
that were a vestiage of PAO code that we never merged in the same way.
o Enforce legal IRQs. You are no longer allowed to try to use IRQs that
will fail on all known ISA/PCI <-> PCMCIA bridges. The bridges do not
have pins for these illegal interrupts, and all of them are listed as
reserved and/or illegeal in the datasheets depending on which one you
look at.
o Add comments about how IBM-AT based computers and NEC PC-98 based computers
map these interrupts and which ones are valid.
o Always clear the bit that steers the management interrupt either to the
value listed in the PCIC_STAT_INT register. I've seen this bit get set
on suspend/resume and after windows boot, and it does't hurt to clear it.
NOTE: this might mean we can share this interrupt in the future.
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o break out some of the probe routine the allocation of resources
into an attach routine
o Recognize PnP ids
o Allocate IRQ per card rather than per system
o Better polling reporting
o Remove unneeded include files in slot.h
o store a pseudo unit number on each device we find.
o Pass a unit number to interrupt/timeout routine and use it for polling
the hardware.
Tested on: My VAIO and with the Linksys pccard reader.
Approved by: jkh
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We do the same thing we do with all the other Vadem chips and print the
right identification for these chips. Tested with the 365, and inferred
for the 465.
This allows the cheapo PCMCIA card that I got from necx to print the right
chip number on boot.
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speaker. Cirrus Logic PCIC chips must enable this. There is also a Low
Power Dynamic Mode bit that claims to reduce power consumption by 30%,
so enable it and hope for the best.
PR: 4650
Submitted by: Nick Sayer <nsayer@quack.kfu.com>
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- Updated some comments using data from the most recent PAO release.
Obtained (partially) from: PAO-970616
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(pt. unused) for TI PCI1130.
2. pccard.c: PCIC_RESUME_RESET is now (also) a sysctl. (Never make it
a #ifdef if it can be made a sysctl!)
3. pcic.c: make getb() and putb() proper member functions of struct
pcic_slot. Add a couple of missing casts.
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All new code is "#ifdef PC98"ed so this should make no difference to
PC/AT (and its clones) users.
Ok'd by: core
Submitted by: FreeBSD(98) development team
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Japanese BSD-Nomad release.
Reviewed by: phk
Submitted by: hosokawa@mt.cs.keio.ac.jp and the rest of the Nomads
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On some laptops, this doesn't work (ie; IBM 75x series), so force it
to power on.
With this modification, I am able to read the tuples off 4 different
PCMCIA cards on my ThinkPad.
Reviewed by: phk@FreeBSD.org
Obtained from: if_zp.c
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Remove the APM stuff
Add support for VA469
Submitted by: Janic.Thaillandier@ratp.fr
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This is still very green, but I have managed to get my modem working.
Lots of work still to do, but now at least we can commit it. /phk
Reviewed by: phk
Submitted by: Andrew McRae <andrew@mega.com.au>
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