CVS log for src/sys/arch/macppc/dev/pmu.c

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Default branch: MAIN

remove ancient #if 0 block
NFC

tsleep()/wakeup() -> cv_*

Port over the changes from thorpej-i2c-spi-conf to thorpej-i2c-spi-conf2,
which is based on a newer HEAD revision.

Merge thorpej-cfargs2.

pass sensor locations to i2c devices if we can find them
tested on 2nd gen Mini

Adapt to CFARGS().

Deal with quirks / differences in OpenFirmware implementations'
interpreation of the i2c "reg" property by embedding knowledge
of those quicks directly, rather than forcing lots of drivers
to provide their own devhandle implementations.  We default to
assuming the Device Tree bindings, and tweak based on platform-
specific #ifdefs.

Start with __HAVE_OPENFIRMWARE_VARIANT_AAPL (all i2c "reg" properties
encode an address that's shifted left 1 bit to account for the R/W bit
that appears on the wire).

Adapt the pmu driver to the new i2c device enumeration mechanism.  This
follows the OpenFirmware bindings for the most part, but has the i2c
addresses of children shifted left one bit as it would appear on the
wire (for the r/w bit).

Merge thorpej-cfargs branch:

Simplify and make extensible the config_search() / config_found() /
config_attach() interfaces: rather than having different variants for
which arguments you want pass along, just have a single call that
takes a variadic list of tag-value arguments.

Adjust all call sites:
- Simplify wherever possible; don't pass along arguments that aren't
  actually needed.
- Don't be explicit about what interface attribute is attaching if
  the device only has one.  (More simplification.)
- Add a config_probe() function to be used in indirect configuiration
  situations, making is visibly easier to see when indirect config is
  in play, and allowing for future change in semantics.  (As of now,
  this is just a wrapper around config_match(), but that is an
  implementation detail.)

Remove unnecessary or redundant interface attributes where they're not
needed.

There are currently 5 "cfargs" defined:
- CFARG_SUBMATCH (submatch function for direct config)
- CFARG_SEARCH (search function for indirect config)
- CFARG_IATTR (interface attribte)
- CFARG_LOCATORS (locators array)
- CFARG_DEVHANDLE (devhandle_t - wraps OFW, ACPI, etc. handles)

...and a sentinel value CFARG_EOL.

Add some extra sanity checking to ensure that interface attributes
aren't ambiguous.

Use CFARG_DEVHANDLE in MI FDT, OFW, and ACPI code, and macppc and shark
ports to associate those device handles with device_t instance.  This
will trickle trough to more places over time (need back-end for pre-OFW
Sun OBP; any others?).

Sync with HEAD.

config_found_ia() -> config_found() w/ CFARG_IATTR.

Convert to intr_establish_xname().

There is not much point in of_compatible() returning -1 for "no match"
and >= 0 for "match".  Just make it return 0 for "no match" and >0 for
"match" so it can be treated like a boolean expression.

As such of_match_compatible() (a wrapper around of_compatible()) is now
obsolete, and will be removed once all call sites are converted to an
appropriate replacement.

Adapt to new proplib API

Merge changes from current as of 20200406

Cleanup i2c bus acquire / release, centralizing all of the logic into
iic_acquire_bus() / iic_release_bus().  "acquire" and "release" hooks
no longer need to be provided by back-end controller drivers (only if
they need special handling, e.g. powering on the i2c controller).
This results in the removal of a bunch of rendundant code from each
back-end controller driver.

Assert that we are not in hard interrupt context in iic_acquire_bus(),
iic_exec(), and iic_release_bus().

Sync with HEAD

Sync with HEAD

Resolve a couple of conflicts (result of the uimin/uimax changes)

Rename min/max -> uimin/uimax for better honesty.

These functions are defined on unsigned int.  The generic name
min/max should not silently truncate to 32 bits on 64-bit systems.
This is purely a name change -- no functional change intended.

HOWEVER!  Some subsystems have

	#define min(a, b)	((a) < (b) ? (a) : (b))
	#define max(a, b)	((a) > (b) ? (a) : (b))

even though our standard name for that is MIN/MAX.  Although these
may invite multiple evaluation bugs, these do _not_ cause integer
truncation.

To avoid `fixing' these cases, I first changed the name in libkern,
and then compile-tested every file where min/max occurred in order to
confirm that it failed -- and thus confirm that nothing shadowed
min/max -- before changing it.

I have left a handful of bootloaders that are too annoying to
compile-test, and some dead code:

cobalt ews4800mips hp300 hppa ia64 luna68k vax
acorn32/if_ie.c (not included in any kernels)
macppc/if_gm.c (superseded by gem(4))

It should be easy to fix the fallout once identified -- this way of
doing things fails safe, and the goal here, after all, is to _avoid_
silent integer truncations, not introduce them.

Maybe one day we can reintroduce min/max as type-generic things that
never silently truncate.  But we should avoid doing that for a while,
so that existing code has a chance to be detected by the compiler for
conversion to uimin/uimax without changing the semantics until we can
properly audit it all.  (Who knows, maybe in some cases integer
truncation is actually intended!)

Resolve conflicts between branch and HEAD

be less spammy on i2c errors

OF_getprop() retuns -1 on failure, not 0...

update from HEAD

pass the right device node to i2c devices

support I2C bus and direct config of slave devices

Sync with HEAD

report the power button to sysmon when possible

fix stupid tpyo
thanks chuq

make sure we call sysmon_pswitch_event() from thread context

Sync with HEAD

zero the i2c_attach_args structure before filling it in.
fixes occasional crashes in iic_attach().

Rebase to HEAD as of a few days ago.

sync with head.

for a reference, the tree before this commit was tagged
as yamt-pagecache-tag8.

this commit was splitted into small chunks to avoid
a limitation of cvs.  ("Protocol error: too many arguments")

sync with head

remove various set-but-unused variables.

do what cuda does - if we read garbage from the RTC try a few more times

#include <sys/bus.h> instead of <machine/bus.h>.

Catchup with rmind-uvmplock merge.

struct device * -> device_t
struct cfdata * -> cfdata_t
use device accessors, use device_private.
some softc/device_t splits (macppc needs a bunch more)
aprint*_dev used considerably more

sync with head

add support for controlling power to the modem in some PowerBooks
works at least with my Pismo, probably others

Sync with HEAD (-D20101022).

sync with head

report lid open/close events to sysmon

sync with head

Remove `volatile' qualifier from argument types of
struct timeval passed to todr_gettime(9) and todr_settime(9).
We no longer have an ancient and volatile struct timeval `time'
global since we have switched to MI timercounter(9) on all port.

XXX1: some of these RTC drivers still assume 32bit time_t
XXX2: some of these should be rewritten to use todr_[gs]ettime_ymdhms()
XXX3: todr(9) man page doesn't mention todr_[gs]ettime_ymdhms()

Sync with HEAD.

Commit is split, to avoid a "too many arguments" protocol error.

sync with head.

Sync with HEAD.

Ansify function definitions w/o arguments. Generated with sed.

Sync with HEAD.

Sync with HEAD.

fix format instead of casting wildly

deal with 64bit time_t
Noticed by Wojciech Galazka

Sync with HEAD.

sync with head.

sync with head.

Convert to new 2 clause license

Sync with HEAD.

don't splhigh() in the interrupt handler, instead spltty() in adb_poll()

sync with HEAD

Sync with HEAD.

Pullup to HEAD

Sync with HEAD.

Sync with head.

sync with head

lockmgr -> mutex

Sync with HEAD.

Sync with HEAD.

sync with head.

Sync with HEAD

Sync with HEAD.

sync with -HEAD

Convert macppc to shared ofw_autoconf.c.  Compile tested only.

sync with HEAD

sync with head.

Sync with HEAD.

Follow the merge of pmap.c on i386 and amd64 and move
pmap_init_tmp_pgtbl into arch/x86/x86/pmap.c. Modify the ACPI wakeup
code to restore CR4 before jumping back into kernel space as the large
page option might cover that.

Sync with HEAD.

Sync with head.

sync with head.

Merge the ppcoea-renovation branch to HEAD.

This branch was a major cleanup and rototill of many of the various OEA
cpu based PPC ports that focused on sharing as much code as possible
between the various ports to eliminate near-identical copies of files in
every tree.  Additionally there is a new PIC system that unifies the
interface to interrupt code for all different OEA ppc arches.  The work
for this branch was done by a variety of people, too long to list here.

TODO:
bebox still needs work to complete the transition to -renovation.
ofppc still needs a bunch of work, which I will be looking at.
ev64260 still needs to be renovated
amigappc was not attempted.

NOTES:
pmppc was removed as an arch, and moved to a evbppc target.

Sync with HEAD

sync with head.

Sync with HEAD.

Sync with HEAD.

Sync with HEAD.

sync with ppcoea-renovation

set display brightness on attach

sync with HEAD

Sync with head.

Sync with head.

Merge some of the less invasive changes from the vmlocking branch:

- kthread, callout, devsw API changes
- select()/poll() improvements
- miscellaneous MT safety improvements

fix some bus_spacification fallout

Sync with head.

Update to HEAD.

sync with head.

request the correct interrupt type in a couple drivers - necessary since
these days we actually do something with the type argument

sync with HEAD

add an optional callback from pmu's worker thread, use it to poll AC power
status on legacy batteries where we don't get environment interrupts. Also
report AC status changes to powerd.

sync with head.

Sync with head.

cleanup a bit, fix some stupid pasto
thanks to jmcneill for finding the problem

Pullup to -current

attach smartbat* when appropriate

sync with head.

file pmu.c was added on branch yamt-lazymbuf on 2007-02-26 09:07:21 +0000

- don't use IPL_HIGH
- attach batteries when present
- some cleanup

Sync with head.

file pmu.c was added on branch newlock2 on 2007-02-01 08:48:08 +0000

make some tables static to avoid collisions

new drivers for pmu and cuda