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History log of /src/sys/arch/dreamcast/dev/maple/maple.c
RevisionDateAuthorComments
 1.57  05-Jul-2022  andvar s/retrys/retries/ in comments.
 1.56  28-Mar-2022  riastradh sys: Split struct device into a private device_impl.h.

Include this only inside autoconf itself, and a few files that abuse
autoconf in ways I can't confidently make easy fixes for.

XXX kernel ABI change requires bump -- no more use of struct device
internals allowed, previously done by some drivers
 1.55  07-Aug-2021  thorpej Merge thorpej-cfargs2.
 1.54  24-Apr-2021  thorpej branches: 1.54.8;
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?).
 1.53  06-May-2019  ryo branches: 1.53.12;
cv_init() must be done before calling maple_scanbus().
ok tsutsui@
 1.52  06-Dec-2015  tsutsui branches: 1.52.18;
Convert tsleep(9)/wakeup(9) pairs to condvar(9) with mutex(9).

Briefly tested with mkbd(4).
 1.51  25-Jul-2014  dholland branches: 1.51.4;
Add d_discard to all struct cdevsw instances I could find.

All have been set to "nodiscard"; some should get a real implementation.
 1.50  27-Mar-2014  christos branches: 1.50.2;
correct/add protection against snprintf overflow.
 1.49  26-Mar-2014  christos kill sprintf
 1.48  16-Mar-2014  dholland Change (mostly mechanically) every cdevsw/bdevsw I can find to use
designated initializers.

I have not built every extant kernel so I have probably broken at
least one build; however I've also found and fixed some wrong
cdevsw/bdevsw entries so even if so I think we come out ahead.
 1.47  14-Mar-2014  martin Remove unused variables
 1.46  13-Oct-2013  riz Catch up to recent changes in config_pending_{incr,decr}().
 1.45  27-Oct-2012  chs branches: 1.45.2;
split device_t/softc for all remaining drivers.
replace "struct device *" with "device_t".
use device_xname(), device_unit(), etc.
 1.44  19-Jul-2011  dyoung branches: 1.44.2; 1.44.12;
Change <machine/bus.h> to <sys/bus.h> throughout.

Split bus.h -> bus_{defs,funcs}.h.

Mark dreamcast/bus.h obsolete.
 1.43  12-Nov-2010  uebayasi Pull in uvm/uvm.h where UVM's page level interface is used.
 1.42  17-Oct-2010  tsutsui Include "ioconf.h" for struct cfdriver.
 1.41  17-Oct-2010  tsutsui Split device_t/softc.
 1.40  19-Oct-2008  mjf branches: 1.40.14; 1.40.16;
Fix debug code that had bitrotted. This allows the maple(4) driver to
be compiled with MAPLE_DEBUG defined.

o line 798: variable buf shadows previous local
o line 1425: event_thread is no longer a struct proc but now is
a lwp_t. Use the correct p_pid member.
 1.39  01-Aug-2008  marcus sysasic_intr_string() takes an IRL, not an IPL.
 1.38  08-Jun-2008  tsutsui branches: 1.38.4;
Use device_lookup_private() to get softc.
 1.37  04-Jun-2008  ad vm_page: put TAILQ_ENTRY into a union with LIST_ENTRY, so we can use both.
 1.36  28-Apr-2008  martin branches: 1.36.2;
Remove clause 3 and 4 from TNF licenses
 1.35  17-Oct-2007  garbled branches: 1.35.16; 1.35.18; 1.35.20;
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.
 1.34  09-Jul-2007  ad branches: 1.34.10;
Merge some of the less invasive changes from the vmlocking branch:

- kthread, callout, devsw API changes
- select()/poll() improvements
- miscellaneous MT safety improvements
 1.33  12-Mar-2007  tsutsui branches: 1.33.2; 1.33.8;
IRL line connected to each device on sysasic is not always corresponding
with MI IPL_* definitions, so add an independent arg to pass IRL lines
to sysasic_intr_establish() and use appropriate macro for them.
 1.32  04-Mar-2007  christos branches: 1.32.2;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.
 1.31  11-Dec-2005  christos branches: 1.31.26;
merge ktrace-lwp.
 1.30  26-Aug-2005  drochner s/locdesc_t/int/g
 1.29  03-Jul-2005  he branches: 1.29.2;
Make the prototype declaration of maplesubmatch() match the function decl.
 1.28  28-Jun-2005  drochner convert remaining autoconf bus "submatch" functions to use the new
signature (passing locators), and remove some which obviously don't
serve any purpose
(untested, sorry)
 1.27  19-Feb-2005  tsutsui - u_intNN_t -> uintNN_t
- ANSI function decls
- ntohl -> be32toh, htonl -> htobe32, htons -> htobe16
- bcopy -> memcpy, bcmp -> memcmp, bzero -> memset
- some KNF
 1.26  15-Jul-2003  lukem branches: 1.26.8; 1.26.10;
__KERNEL_RCSID()
 1.25  15-Feb-2003  itohy branches: 1.25.2;
constify command buffer
 1.24  11-Feb-2003  itohy Tweak unit ping (removal detect) code to work around problems
with some 3rd party memory cards.
 1.23  01-Jan-2003  thorpej Use aprint_normal() for cfprint routines.
 1.22  06-Dec-2002  itohy Pass devinfo of the base device (subunit == 0 of the same port)
to sub-drivers.
 1.21  15-Nov-2002  itohy New Maple Bus driver
- interrupt driven
- support hot swapping
- sub-drivers can send commands
 1.20  23-Oct-2002  jdolecek merge kqueue branch into -current

kqueue provides a stateful and efficient event notification framework
currently supported events include socket, file, directory, fifo,
pipe, tty and device changes, and monitoring of processes and signals

kqueue is supported by all writable filesystems in NetBSD tree
(with exception of Coda) and all device drivers supporting poll(2)

based on work done by Jonathan Lemon for FreeBSD
initial NetBSD port done by Luke Mewburn and Jason Thorpe
 1.19  02-Oct-2002  thorpej Add trailing ; to CFATTACH_DECL
 1.18  01-Oct-2002  thorpej Use CFATTACH_DECL().
 1.17  27-Sep-2002  thorpej Declare all cfattach structures const.
 1.16  27-Sep-2002  thorpej Introduce a new routine, config_match(), which invokes the
cfattach->ca_match function in behalf of the caller. Use it
rather than invoking cfattach->ca_match directly.
 1.15  27-Sep-2002  thorpej When in a match routine, the cfdata we're passed always references
our own cfdriver, so don't bother comparing the names, since they
will always match.
 1.14  06-Sep-2002  gehenna Merge the gehenna-devsw branch into the trunk.

This merge changes the device switch tables from static array to
dynamically generated by config(8).

- All device switches is defined as a constant structure in device drivers.

- The new grammer ``device-major'' is introduced to ``files''.

device-major <prefix> char <num> [block <num>] [<rules>]

- All device major numbers must be listed up in port dependent majors.<arch>
by using this grammer.

- Added the new naming convention.
The name of the device switch must be <prefix>_[bc]devsw for auto-generation
of device switch tables.

- The backward compatibility of loading block/character device
switch by LKM framework is broken. This is necessary to convert
from block/character device major to device name in runtime and vice versa.

- The restriction to assign device major by LKM is completely removed.
We don't need to reserve LKM entries for dynamic loading of device switch.

- In compile time, device major numbers list is packed into the kernel and
the LKM framework will refer it to assign device major number dynamically.
 1.13  02-Jun-2002  drochner branches: 1.13.2;
move initialization of the "struct pglist" returned by uvm_pglistalloc()
from the calling code into uvm_pglistalloc() itself for consistency
and easier error handling
 1.12  25-Mar-2002  uch branches: 1.12.2;
ANSIfy, KNF
 1.11  24-Mar-2002  uch adapted to new interrupt code and shb changes.
 1.10  04-Dec-2001  atatat Fixes to eliminate some compiler complaints, such as:

suggest explicit braces to avoid ambiguous `else'
suggest parentheses around assignment used as truth value
 1.9  22-Jul-2001  wiz branches: 1.9.2;
bcopy -> memcpy, bzero -> memset
 1.8  26-May-2001  chs branches: 1.8.2;
replace vm_page_t with struct vm_page *.
 1.7  26-May-2001  marcus Changed maple device to attach per function instead of per unit.
Raw maple unit access is now possible through /dev/maple*.
 1.6  16-Mar-2001  marcus sc_port_units was set incorrectly at probe time.
 1.5  03-Feb-2001  marcus branches: 1.5.2; 1.5.4;
Added subunit scan.
 1.4  31-Jan-2001  thorpej Make the "maple" bus a direct config bus. Now, when a device is
not configured into the kernel, you know about it, e.g.:

Dreamcast Controller at maple0 port 0 not configured
 1.3  21-Jan-2001  marcus Corrected license text.
 1.2  19-Jan-2001  marcus Better DMA allocator (thanks to Jason R. Thorpe).
 1.1  16-Jan-2001  marcus Maple bus driver.
 1.5.4.2  21-Jun-2001  nathanw Catch up to -current.
 1.5.4.1  09-Apr-2001  nathanw Catch up with -current.
 1.5.2.2  27-Mar-2001  bouyer Sync with HEAD.
 1.5.2.1  03-Feb-2001  bouyer file maple.c was added on branch thorpej_scsipi on 2001-03-27 15:30:39 +0000
 1.8.2.4  10-Oct-2002  jdolecek sync kqueue with -current; this includes merge of gehenna-devsw branch,
merge of i386 MP branch, and part of autoconf rototil work
 1.8.2.3  23-Jun-2002  jdolecek catch up with -current on kqueue branch
 1.8.2.2  10-Jan-2002  thorpej Sync kqueue branch with -current.
 1.8.2.1  03-Aug-2001  lukem update to -current
 1.9.2.1  10-Oct-2001  fvdl Convert all remaining devices.
 1.12.2.2  14-Jul-2002  gehenna catch up with -current.
 1.12.2.1  17-May-2002  gehenna Add device switch.
 1.13.2.6  03-Jan-2003  thorpej Sync with HEAD.
 1.13.2.5  11-Dec-2002  thorpej Sync with HEAD.
 1.13.2.4  11-Nov-2002  nathanw Catch up to -current
 1.13.2.3  18-Oct-2002  nathanw Catch up to -current.
 1.13.2.2  17-Sep-2002  nathanw Catch up to -current.
 1.13.2.1  02-Jun-2002  nathanw file maple.c was added on branch nathanw_sa on 2002-09-17 21:14:12 +0000
 1.25.2.6  10-Nov-2005  skrll Sync with HEAD. Here we go again...
 1.25.2.5  04-Mar-2005  skrll Sync with HEAD.

Hi Perry!
 1.25.2.4  17-Jan-2005  skrll Adapt to branch.
 1.25.2.3  21-Sep-2004  skrll Fix the sync with head I botched.
 1.25.2.2  18-Sep-2004  skrll Sync with HEAD.
 1.25.2.1  03-Aug-2004  skrll Sync with HEAD
 1.26.10.1  19-Mar-2005  yamt sync with head. xen and whitespace. xen part is not finished.
 1.26.8.1  29-Apr-2005  kent sync with -current
 1.29.2.2  03-Sep-2007  yamt sync with head.
 1.29.2.1  21-Jun-2006  yamt sync with head.
 1.31.26.2  24-Mar-2007  yamt sync with head.
 1.31.26.1  12-Mar-2007  rmind Sync with HEAD.
 1.32.2.2  15-Jul-2007  ad Sync with head.
 1.32.2.1  13-Mar-2007  ad Sync with head.
 1.33.8.1  03-Oct-2007  garbled Sync with HEAD
 1.33.2.1  11-Jul-2007  mjf Sync with head.
 1.34.10.1  06-Nov-2007  matt sync with HEAD
 1.35.20.2  04-May-2009  yamt sync with head.
 1.35.20.1  16-May-2008  yamt sync with head.
 1.35.18.2  17-Jun-2008  yamt sync with head.
 1.35.18.1  18-May-2008  yamt sync with head.
 1.35.16.5  17-Jan-2009  mjf Sync with HEAD.
 1.35.16.4  28-Sep-2008  mjf Sync with HEAD.
 1.35.16.3  29-Jun-2008  mjf Sync with HEAD.
 1.35.16.2  05-Jun-2008  mjf Sync with HEAD.

Also fix build.
 1.35.16.1  02-Jun-2008  mjf Sync with HEAD.
 1.36.2.2  18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.36.2.1  23-Jun-2008  wrstuden Sync w/ -current. 34 merge conflicts to follow.
 1.38.4.2  13-Dec-2008  haad Update haad-dm branch to haad-dm-base2.
 1.38.4.1  19-Oct-2008  haad Sync with HEAD.
 1.40.16.1  05-Mar-2011  rmind sync with head
 1.40.14.1  22-Oct-2010  uebayasi Sync with HEAD (-D20101022).
 1.44.12.3  03-Dec-2017  jdolecek update from HEAD
 1.44.12.2  20-Aug-2014  tls Rebase to HEAD as of a few days ago.
 1.44.12.1  20-Nov-2012  tls Resync to 2012-11-19 00:00:00 UTC
 1.44.2.2  22-May-2014  yamt 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")
 1.44.2.1  30-Oct-2012  yamt sync with head
 1.45.2.1  18-May-2014  rmind sync with head
 1.50.2.1  10-Aug-2014  tls Rebase.
 1.51.4.1  27-Dec-2015  skrll Sync with HEAD (as of 26th Dec)
 1.52.18.1  10-Jun-2019  christos Sync with HEAD
 1.53.12.2  22-Mar-2021  thorpej Audit CFARG_IATTR in config_found() calls, and remove it in situations
where the interface attribute is not ambiguous.
 1.53.12.1  22-Mar-2021  thorpej Mechanical conversion of config_found_sm_loc() -> config_found().
CFARG_IATTR usage needs to be audited.
 1.54.8.1  04-Aug-2021  thorpej Adapt to CFARGS().

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