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History log of /src/sys/arch/arm/ep93xx/epsoc.c
RevisionDateAuthorComments
 1.16  21-Nov-2021  skrll Trailing whitespace.
 1.15  07-Aug-2021  thorpej Merge thorpej-cfargs2.
 1.14  24-Apr-2021  thorpej branches: 1.14.8;
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?).
 1.13  12-Nov-2012  skrll branches: 1.13.52;
C99 types
 1.12  27-Oct-2012  chs split device_t/softc for all remaining drivers.
replace "struct device *" with "device_t".
use device_xname(), device_unit(), etc.
 1.11  01-Jul-2011  dyoung branches: 1.11.2; 1.11.12;
#include <sys/bus.h> instead of <machine/bus.h>.
 1.10  23-Oct-2009  snj Switch to a 2 clause license. Approved by joff@ (copyright holder).
 1.9  14-Mar-2009  dsl Change about 4500 of the K&R function definitions to ANSI ones.
There are still about 1600 left, but they have ',' or /* ... */
in the actual variable definitions - which my awk script doesn't handle.
There are also many that need () -> (void).
(The script does handle misordered arguments.)
 1.8  10-May-2008  martin branches: 1.8.6; 1.8.12;
Backout previous: the license sweep touched these files in error, so
restore the old license.
 1.7  28-Apr-2008  martin branches: 1.7.2;
Remove clause 3 and 4 from TNF licenses
 1.6  08-Mar-2006  lukem branches: 1.6.70;
Use the SI capitalization for "Hz", "kHz", and "MHz" in comments and strings.
Add a space between numbers and Hz unit.
 1.5  12-Nov-2005  hamajima branches: 1.5.6; 1.5.8; 1.5.10; 1.5.12;
add new EP93xx device drivers.
epgpio: GPIO Interface (support gpio(4))
epled: LED on epgpio
eppcic: PCMCIA Interface
eprtc: Realtime clock
epwdog: Watchdog timer

changes
ep93xx_intr: add dummy entries to keep vmstat happy.
epclk: I use Timer1 and generate 100Hz if set.
epe: attach epclk and epgpio first.
fetch the Ethernet address from property if set.
I use config flags and modify MDCDIV.
 1.4  26-Aug-2005  drochner s/locdesc_t/int/g
 1.3  30-Jun-2005  drochner branches: 1.3.2;
adaptions to config_search() change, and minor autoconf fixes, mostly from Havard Eidnes
 1.2  04-Jun-2005  he Fix -Wcast-qual by sprinkling some consts, and remove named
parameters from a function prototype to avoid shadowing.
Also fix a couple of other shadowing problems.
 1.1  22-Dec-2004  joff branches: 1.1.4;
ep93xx ARM system-on-chip support
 1.1.4.4  11-Dec-2005  christos Sync with head.
 1.1.4.3  10-Nov-2005  skrll Sync with HEAD. Here we go again...
 1.1.4.2  17-Jan-2005  skrll Sync with HEAD.
 1.1.4.1  22-Dec-2004  skrll file epsoc.c was added on branch ktrace-lwp on 2005-01-17 19:29:12 +0000
 1.3.2.1  21-Jun-2006  yamt sync with head.
 1.5.12.1  19-Apr-2006  elad sync with head - hopefully this will work
 1.5.10.1  13-Mar-2006  yamt sync with head.
 1.5.8.1  22-Apr-2006  simonb Sync with head.
 1.5.6.1  09-Sep-2006  rpaulo sync with head
 1.6.70.2  11-Mar-2010  yamt sync with head
 1.6.70.1  04-May-2009  yamt sync with head.
 1.7.2.1  23-Jun-2008  wrstuden Sync w/ -current. 34 merge conflicts to follow.
 1.8.12.1  13-May-2009  jym Sync with HEAD.

Commit is split, to avoid a "too many arguments" protocol error.
 1.8.6.1  28-Apr-2009  skrll Sync with HEAD.
 1.11.12.1  20-Nov-2012  tls Resync to 2012-11-19 00:00:00 UTC
 1.11.2.2  16-Jan-2013  yamt sync with (a bit old) head
 1.11.2.1  30-Oct-2012  yamt sync with head
 1.13.52.8  05-Apr-2021  thorpej Treat config_probe() as if it were a boolean function; don't compare
return value > 0... except for the odd balls, which are now really easy
to spot.
 1.13.52.7  05-Apr-2021  thorpej config_match() -> config_probe() for the straight-forward indirect config
cases. There are still a few odd balls using config_match() which should
be sorted out later.
 1.13.52.6  04-Apr-2021  thorpej CFARG_SUBMATCH -> CFARG_SEARCH for the indirect configuration uses.
 1.13.52.5  03-Apr-2021  thorpej Give config_attach() the tagged variadic argument treatment and
mechanically convert all call sites.
 1.13.52.4  22-Mar-2021  thorpej Audit CFARG_IATTR in config_found() calls, and remove it in situations
where the interface attribute is not ambiguous.
 1.13.52.3  22-Mar-2021  thorpej Mechanical conversion of config_found_sm_loc() -> config_found().
CFARG_IATTR usage needs to be audited.
 1.13.52.2  21-Mar-2021  thorpej CFARG_IATTR usage audit:

If a device carries only one interface attribute, there is no need
to specify it when calling config_search(); that specification is
meant only to disambiguate which interface attribute (which is a
proxy for "what kind of attach args are being used") is having
children attached. cfparent_match() will take care of ensuring that
any potential children can attach to one of the parent's iterface
attributes, and if the parent only carries one, no disambiguation is
necessary.
 1.13.52.1  20-Mar-2021  thorpej The proliferation if config_search_*() and config_found_*() combinations
is a little absurd, so begin to tidy this up:

- Introduce a new cfarg_t enumerated type, that defines the types of
tag-value variadic arguments that can be passed to the various
config_*() functions (CFARG_SUBMATCH, CFARG_IATTR, and CFARG_LOCATORS,
for now, plus a CFARG_EOL sentinel).
- Collapse config_search_*() into config_search() that takes these
variadic arguments.
- Convert all call sites of config_search_*() to the new signature.
Noticed several incorrect usages along the way, which will be
audited in a future commit.
 1.14.8.1  04-Aug-2021  thorpej Adapt to CFARGS().

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