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History log of /src/sys/arch/arm/sa11x0/sa11x0_com.c
RevisionDateAuthorComments
 1.59  26-Oct-2022  riastradh ddb/db_active.h: New home for extern db_active.

This can be included unconditionally, and db_active can then be
queried unconditionally; if DDB is not in the kernel, then db_active
is a constant zero. Reduces need for #include opt_ddb.h, #ifdef DDB.
 1.58  20-Nov-2020  thorpej malloc(9) -> kmem(9)
 1.57  10-Nov-2019  chs branches: 1.57.8;
in many device attach paths, allocate memory with M_WAITOK instead of M_NOWAIT
and remove code to handle failures that can no longer happen.
 1.56  21-Sep-2018  skrll Centralise defparam CONSADDR, CONSPEED, CONMODE and CONADDR into
opt_console.h and adjust.
 1.55  13-Apr-2015  riastradh branches: 1.55.16; 1.55.18;
MD rnd.h cleanups. Please let me know if I broke anything!
 1.54  15-Nov-2014  christos branches: 1.54.2;
centralize the call unit / dialout macros
 1.53  10-Aug-2014  tls Merge tls-earlyentropy branch into HEAD.
 1.52  25-Jul-2014  dholland Add d_discard to all struct cdevsw instances I could find.

All have been set to "nodiscard"; some should get a real implementation.
 1.51  16-Mar-2014  dholland branches: 1.51.2;
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.
 1.50  02-Feb-2012  tls branches: 1.50.6; 1.50.10;
Entropy-pool implementation move and cleanup.

1) Move core entropy-pool code and source/sink/sample management code
to sys/kern from sys/dev.

2) Remove use of NRND as test for presence of entropy-pool code throughout
source tree.

3) Remove use of RND_ENABLED in device drivers as microoptimization to
avoid expensive operations on disabled entropy sources; make the
rnd_add calls do this directly so all callers benefit.

4) Fix bug in recent rnd_add_data()/rnd_add_uint32() changes that might
have lead to slight entropy overestimation for some sources.

5) Add new source types for environmental sensors, power sensors, VM
system events, and skew between clocks, with a sample implementation
for each.

ok releng to go in before the branch due to the difficulty of later
pullup (widespread #ifdef removal and moved files). Tested with release
builds on amd64 and evbarm and live testing on amd64.
 1.49  01-Jul-2011  dyoung branches: 1.49.2; 1.49.6;
#include <sys/bus.h> instead of <machine/bus.h>.
 1.48  24-Apr-2011  rmind Rename ttymalloc() to tty_alloc(), and ttyfree() to tty_free() for
consistency. Remove some unnecessary malloc.h inclusions as well.
 1.47  19-Aug-2010  tsutsui branches: 1.47.2;
Fix device_t/softc split botches. PR port-hpcarm/43780
 1.46  06-Dec-2009  dyoung branches: 1.46.2; 1.46.4;
Simplify the device-activation hook. Move some of the device
deactivation to the detachment routine, where it belongs.
 1.45  29-May-2009  rjs Make the following changes:

struct device * -> device_t
struct cfdata * -> cfdata_t
printf -> aprint_
device_t/softc split
 1.44  11-Jun-2008  cegger use device_lookup_private to get softc
 1.43  28-Apr-2008  martin branches: 1.43.2; 1.43.4;
Remove clause 3 and 4 from TNF licenses
 1.42  27-Dec-2007  rjs branches: 1.42.6; 1.42.8; 1.42.10;
Change to new softint API.
 1.41  19-Nov-2007  ad branches: 1.41.6;
- Factor out too many copies of the same bit of tty code.
- Fix another tty signalling/wakeup problem.
 1.40  17-Oct-2007  garbled branches: 1.40.2;
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.
 1.39  14-Jul-2007  ad branches: 1.39.6; 1.39.8; 1.39.10; 1.39.12; 1.39.16;
Generic soft interrupts are mandatory.
 1.38  04-Mar-2007  christos branches: 1.38.2; 1.38.10;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.
 1.37  01-Oct-2006  elad branches: 1.37.4;
More from Matt Fleming:

Adapt to KAUTH_DEVICE_TTY_PRIVSET and KAUTH_DEVICE_TTY_OPEN.
 1.36  01-Oct-2006  elad Adapt MD code to KAUTH_DEVICE_TTY_OPEN. Patch from Matt Fleming, thanks!
 1.35  23-Jul-2006  ad branches: 1.35.4; 1.35.6;
Use the LWP cached credentials where sane.
 1.34  27-Jun-2006  peter KNF. Correct some spelling errors.
 1.33  27-Jun-2006  peter Use symbolic constants for the UART register locations.
Consistently write "SA-11x0".
 1.32  14-May-2006  elad branches: 1.32.4;
integrate kauth.
 1.31  11-Apr-2006  peter Implement pmap_devmap on hpcarm to map I/O registers that are used
in early start-up stage. Change the virtual address for UART #3 to
the physical address in the configuration files.
While here, implement the sa11x0_bs_unmap function.

Reviewed by Toru Nishimura (on port-arm).
 1.30  26-Mar-2006  thorpej Use device_unit().
 1.29  06-Mar-2006  christos branches: 1.29.2; 1.29.4;
PR/33014: arnaud degroote: remove SET/ISSET/CLR defines
 1.28  04-Mar-2006  peter branches: 1.28.2;
Use ANSI function decls.
 1.27  04-Mar-2006  peter Match all Jornada 7xx models.
 1.26  20-Feb-2006  thorpej Use device_is_active() rather than testing dv_flags for DVF_ACTIVE
directly.
 1.25  27-Dec-2005  yamt branches: 1.25.2; 1.25.4; 1.25.6;
sacom_attach_subr: don't try to initialize a lock which doesn't exist.
 1.24  27-Dec-2005  chs remove the COM_MPLOCK option. always include the spinlock in the softc
and always call the simple_* locking functions. the locking functions
are compiled out if they are not needed anyway, so a separate option
for this doesn't gain anything.

this also fixes the serial console on my alpha ES40 (which doesn't make much
sense since the com driver should still be under the big lock on alpha,
but whatever).
 1.23  11-Dec-2005  christos merge ktrace-lwp.
 1.22  23-Oct-2005  peter Make this compile when DEBUG is defined.
 1.21  06-Sep-2005  kleink branches: 1.21.2;
Change the driver open function's conditional for overriding exclusive tty
use from checking the proc's uid to suser(9), and account for the use of
privileges. Noted by David Holland in PR kern/31126.
 1.20  02-Jun-2005  uwe branches: 1.20.2;
Drop parameter names from prototype to avoid shadowing warnings.
 1.19  07-Aug-2003  agc Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22364, verified by myself.
 1.18  15-Jul-2003  lukem __KERNEL_RCSID()
 1.17  29-Jun-2003  fvdl branches: 1.17.2;
Back out the lwp/ktrace changes. They contained a lot of colateral damage,
and need to be examined and discussed more.
 1.16  29-Jun-2003  ichiro struct proc * -> struct lwp *
 1.15  23-Jun-2003  martin Make sure to include opt_foo.h if a defflag option FOO is used.
 1.14  07-Mar-2003  rjs Add NULL cn_halt and cn_flush entries to consdev.
 1.13  04-Nov-2002  itohy Dump DDB_* and SYMTAB_SPACE options to opt_ddbparam.h rather than opt_ddb.h.
These options are used in limited files but #include "opt_ddb.h" are
everywhere, and changing them caused almost full recompilation.
 1.12  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
 1.11  05-Oct-2002  chs branches: 1.11.2;
add missing protos.
 1.10  02-Oct-2002  thorpej Use CFATTACH_DECL().
 1.9  27-Sep-2002  thorpej Declare all cfattach structures const.
 1.8  27-Sep-2002  provos remove trailing \n in panic(). approved perry.
 1.7  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.
 1.6  02-Sep-2002  manu When the serial port was not checked in hpcboot on hpcarm, writing to
/dev/ttyS0 crashed the kernel. This is because sacom_filltx uses some
uninitialized static variables. Pulling the salues from softc instead
fixes the problem (this is what was done before the drver was moved
from /sys/arch/hpcarm to /sys/arch/arm, anyway).
 1.5  19-Jul-2002  ichiro make compile
 1.4  19-Jul-2002  ichiro sync to hpcarm/sa11x0

later, remove hpcarm/sa11x0
 1.3  17-Mar-2002  atatat branches: 1.3.4;
Convert ioctl code to use EPASSTHROUGH instead of -1 or ENOTTY for
indicating an unhandled "command". ERESTART is -1, which can lead to
confusion. ERESTART has been moved to -3 and EPASSTHROUGH has been
placed at -4. No ioctl code should now return -1 anywhere. The
ioctl() system call is now properly restartable.
 1.2  20-Nov-2001  lukem - pull in opt_kgdb.h where necessary
- replace opt_kgdb_machdep.h with opt_kgdb.h
- defparam opt_kgdb.h:
KGDB_DEV KGDB_DEVNAME KGDB_DEVADDR KGDB_DEVRATE KGDB_DEVMODE
- move from opt_ddbparam.h to opt_ddb.h:
DDB_FROMCONSOLE DDB_ONPANIC DDB_HISTORY_SIZE DDB_BREAK_CHAR SYMTAB_SPACE
- replace KGDBDEV with KGDB_DEV
- replace KGDBADDR with KGDB_DEVADDR
- replace KGDBMODE with KGDB_DEVMODE
- replace KGDBRATE with KGDB_DEVRATE
- use `9600' instead of `0x2580' for 9600 baud rate
- use correct quotes for options KGDB_DEVNAME="\"com\""
- use correct quotes for options KGDB_DEV="17*256+0"
- remove unnecessary dependancy on Makefile for kgdb_stub.o
- minor whitespace cleanup
 1.1  08-Jul-2001  rjs branches: 1.1.2; 1.1.4; 1.1.8;
Initial copy of SA11x0 support from hpcarm.
 1.1.8.7  11-Nov-2002  nathanw Catch up to -current
 1.1.8.6  18-Oct-2002  nathanw Catch up to -current.
 1.1.8.5  17-Sep-2002  nathanw Catch up to -current.
 1.1.8.4  01-Aug-2002  nathanw Catch up to -current.
 1.1.8.3  01-Apr-2002  nathanw Catch up to -current.
(CVS: It's not just a program. It's an adventure!)
 1.1.8.2  08-Jan-2002  nathanw Catch up to -current.
 1.1.8.1  08-Jul-2001  nathanw file sa11x0_com.c was added on branch nathanw_sa on 2002-01-08 00:23:18 +0000
 1.1.4.2  13-Oct-2001  fvdl Revert the t_dev -> t_devvp change in struct tty. The way that tty
structs are currently used (especially by console ttys) aren't
ready for it, and this will require quite a few changes.
 1.1.4.1  10-Oct-2001  fvdl Convert all remaining devices.
 1.1.2.4  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
 1.1.2.3  06-Sep-2002  jdolecek sync kqueue branch with HEAD
 1.1.2.2  23-Jun-2002  jdolecek catch up with -current on kqueue branch
 1.1.2.1  10-Jan-2002  thorpej Sync kqueue branch with -current.
 1.3.4.2  21-Jul-2002  gehenna catch up with -current.
 1.3.4.1  19-May-2002  gehenna Add device switch.
Replace the access to devsw table and the hard-coded majors with devsw API.
 1.11.2.1  24-Oct-2002  bjh21 Sync with trunk.
 1.17.2.5  10-Nov-2005  skrll Sync with HEAD. Here we go again...
 1.17.2.4  24-Jan-2005  skrll Adapt to branch.
 1.17.2.3  21-Sep-2004  skrll Fix the sync with head I botched.
 1.17.2.2  18-Sep-2004  skrll Sync with HEAD.
 1.17.2.1  03-Aug-2004  skrll Sync with HEAD
 1.20.2.5  21-Jan-2008  yamt sync with head
 1.20.2.4  07-Dec-2007  yamt sync with head
 1.20.2.3  03-Sep-2007  yamt sync with head.
 1.20.2.2  30-Dec-2006  yamt sync with head.
 1.20.2.1  21-Jun-2006  yamt sync with head.
 1.21.2.1  26-Oct-2005  yamt sync with head
 1.25.6.2  01-Jun-2006  kardel Sync with head.
 1.25.6.1  22-Apr-2006  simonb Sync with head.
 1.25.4.1  09-Sep-2006  rpaulo sync with head
 1.25.2.1  01-Mar-2006  yamt sync with head.
 1.28.2.4  11-Aug-2006  yamt sync with head
 1.28.2.3  24-May-2006  yamt sync with head.
 1.28.2.2  01-Apr-2006  yamt sync with head.
 1.28.2.1  13-Mar-2006  yamt sync with head.
 1.29.4.2  24-May-2006  tron Merge 2006-05-24 NetBSD-current into the "peter-altq" branch.
 1.29.4.1  28-Mar-2006  tron Merge 2006-03-28 NetBSD-current into the "peter-altq" branch.
 1.29.2.4  13-May-2006  elad sprinkle some #include <sys/kauth.h> in files that use kauth kpi but
don't include it yet. hopefully this will prevent some fallout.
 1.29.2.3  19-Apr-2006  elad sync with head - hopefully this will work
 1.29.2.2  10-Mar-2006  elad generic_authorize() -> kauth_authorize_generic().
 1.29.2.1  08-Mar-2006  elad Adapt to kernel authorization KPI.

I expect *some* lossage here...
 1.32.4.1  13-Jul-2006  gdamore Merge from HEAD.
 1.35.6.1  22-Oct-2006  yamt sync with head
 1.35.4.1  18-Nov-2006  ad Sync with head.
 1.37.4.1  12-Mar-2007  rmind Sync with HEAD.
 1.38.10.1  03-Oct-2007  garbled Sync with HEAD
 1.38.2.2  03-Dec-2007  ad Sync with HEAD.
 1.38.2.1  15-Jul-2007  ad Sync with head.
 1.39.16.1  21-Nov-2007  bouyer Sync with HEAD
 1.39.12.2  09-Jan-2008  matt sync with HEAD
 1.39.12.1  06-Nov-2007  matt sync with HEAD
 1.39.10.1  01-Jan-2008  chris Sync with HEAD.
 1.39.8.1  21-Nov-2007  joerg Sync with HEAD.
 1.39.6.3  28-Feb-2008  rjs Sync with HEAD.
 1.39.6.2  26-Dec-2007  rjs Sync with HEAD.
 1.39.6.1  06-Oct-2007  rjs Switch to new interrupt code.
 1.40.2.2  18-Feb-2008  mjf Sync with HEAD.
 1.40.2.1  08-Dec-2007  mjf Sync with HEAD.
 1.41.6.1  02-Jan-2008  bouyer Sync with HEAD
 1.42.10.5  09-Oct-2010  yamt sync with head
 1.42.10.4  11-Mar-2010  yamt sync with head
 1.42.10.3  20-Jun-2009  yamt sync with head
 1.42.10.2  04-May-2009  yamt sync with head.
 1.42.10.1  16-May-2008  yamt sync with head.
 1.42.8.2  17-Jun-2008  yamt sync with head.
 1.42.8.1  18-May-2008  yamt sync with head.
 1.42.6.2  29-Jun-2008  mjf Sync with HEAD.
 1.42.6.1  02-Jun-2008  mjf Sync with HEAD.
 1.43.4.1  18-Jun-2008  simonb Sync with head.
 1.43.2.1  23-Jun-2008  wrstuden Sync w/ -current. 34 merge conflicts to follow.
 1.46.4.2  31-May-2011  rmind sync with head
 1.46.4.1  05-Mar-2011  rmind sync with head
 1.46.2.1  22-Oct-2010  uebayasi Sync with HEAD (-D20101022).
 1.47.2.1  06-Jun-2011  jruoho Sync with HEAD.
 1.49.6.1  18-Feb-2012  mrg merge to -current.
 1.49.2.2  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")
 1.49.2.1  17-Apr-2012  yamt sync with head
 1.50.10.1  18-May-2014  rmind sync with head
 1.50.6.2  03-Dec-2017  jdolecek update from HEAD
 1.50.6.1  20-Aug-2014  tls Rebase to HEAD as of a few days ago.
 1.51.2.2  10-Aug-2014  tls Rebase.
 1.51.2.1  07-Apr-2014  tls Be a little more clear and consistent about harvesting entropy from devices:

1) deprecate RND_FLAG_NO_ESTIMATE

2) define RND_FLAG_COLLECT_TIME, RND_FLAG_COLLECT_VALUE

3) define RND_FLAG_ESTIMATE_TIME, RND_FLAG_ESTIMATE_VALUE

4) define RND_FLAG_DEFAULT: RND_FLAG_COLLECT_TIME|
RND_FLAG_COLLECT_VALUE|RND_FLAG_ESTIMATE_TIME

5) Make entropy harvesting from environmental sensors a little more generic
and remove it from individual sensor drivers.

6) Remove individual open-coded delta-estimators for values from a few
places in the tree (uvm, environmental drivers).

7) 0 -> RND_FLAG_DEFAULT, actually gather entropy from various drivers
that had stubbed out code, other minor cleanups.
 1.54.2.1  06-Jun-2015  skrll Sync with HEAD
 1.55.18.2  13-Apr-2020  martin Mostly merge changes from HEAD upto 20200411
 1.55.18.1  10-Jun-2019  christos Sync with HEAD
 1.55.16.1  30-Sep-2018  pgoyette Ssync with HEAD
 1.57.8.1  14-Dec-2020  thorpej Sync w/ HEAD.

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