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* remove some long abandonded serial drivers (cy, rc, rp) since 2008John-Mark Gurney2020-07-301-1113/+0
| | | | | | | | | | | Reviewed by: phk (earlier version) Reviewed by: emaste (earlier version) Reviewed by: bcr (earlier version) Reviewed by: zeising (earlier version) Differential Revision: https://reviews.freebsd.org/D25874 Notes: svn path=/head/; revision=363683
* tty: convert tty_lock_assert to tty_assert_locked to hide lock typeKyle Evans2020-04-171-1/+1
| | | | | | | | | | | | | | | | | A later change, currently being iterated on in D24459, will in-fact change the lock type to an sx so that TTY drivers can sleep on it if they need to. Committing this ahead of time to make the review in question a little more palatable. tty_lock_assert() is unfortunately still needed for now in two places to make sure that the tty lock has not been recursed upon, for those scenarios where it's supplied by the TTY driver and possibly a mutex that is allowed to recurse. Suggested by: markj Notes: svn path=/head/; revision=360051
* Move most of the contents of opt_compat.h to opt_global.h.Brooks Davis2018-04-061-2/+0
| | | | | | | | | | | | | | | | | | | | | opt_compat.h is mentioned in nearly 180 files. In-progress network driver compabibility improvements may add over 100 more so this is closer to "just about everywhere" than "only some files" per the guidance in sys/conf/options. Keep COMPAT_LINUX32 in opt_compat.h as it is confined to a subset of sys/compat/linux/*.c. A fake _COMPAT_LINUX option ensure opt_compat.h is created on all architectures. Move COMPAT_LINUXKPI to opt_dontuse.h as it is only used to control the set of compiled files. Reviewed by: kib, cem, jhb, jtl Sponsored by: DARPA, AFRL Differential Revision: https://reviews.freebsd.org/D14941 Notes: svn path=/head/; revision=332122
* Revert r327828, r327949, r327953, r328016-r328026, r328041:Pedro F. Giffuni2018-01-211-2/+1
| | | | | | | | | | | | | | | | | | Uses of mallocarray(9). The use of mallocarray(9) has rocketed the required swap to build FreeBSD. This is likely caused by the allocation size attributes which put extra pressure on the compiler. Given that most of these checks are superfluous we have to choose better where to use mallocarray(9). We still have more uses of mallocarray(9) but hopefully this is enough to bring swap usage to a reasonable level. Reported by: wosch PR: 225197 Notes: svn path=/head/; revision=328218
* dev: make some use of mallocarray(9).Pedro F. Giffuni2018-01-131-1/+2
| | | | | | | | | | | | | | Focus on code where we are doing multiplications within malloc(9). None of these is likely to overflow, however the change is still useful as some static checkers can benefit from the allocation attributes we use for mallocarray. This initial sweep only covers malloc(9) calls with M_NOWAIT. No good reason but I started doing the changes before r327796 and at that time it was convenient to make sure the sorrounding code could handle NULL values. Notes: svn path=/head/; revision=327949
* sys/dev: further adoption of SPDX licensing ID tags.Pedro F. Giffuni2017-11-271-0/+2
| | | | | | | | | | | | | | | Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. Notes: svn path=/head/; revision=326255
* Use the callout(9) API instead of timeout(9). To do this more cleanly,John Baldwin2014-11-111-79/+27
| | | | | | | | | | convert a global timer to a per-controller timer. This works much better with locking and removes the need for several global lookup tables. Tested by: ambrisko Notes: svn path=/head/; revision=274390
* Temporarily revert the new-bus locking for 8.0 release. It will beJohn Baldwin2009-08-201-4/+0
| | | | | | | | | reintroduced after HEAD is reopened for commits by re@. Approved by: re (kib), attilio Notes: svn path=/head/; revision=196403
* Make the newbus subsystem Giant free by adding the new newbus sxlock.Attilio Rao2009-08-021-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The newbus lock is responsible for protecting newbus internIal structures, device states and devclass flags. It is necessary to hold it when all such datas are accessed. For the other operations, softc locking should ensure enough protection to avoid races. Newbus lock is automatically held when virtual operations on the device and bus are invoked when loading the driver or when the suspend/resume take place. For other 'spourious' operations trying to access/modify the newbus topology, newbus lock needs to be automatically acquired and dropped. For the moment Giant is also acquired in some key point (modules subsystem) in order to avoid problems before the 8.0 release as module handlers could make assumptions about it. This Giant locking should go just after the release happens. Please keep in mind that the public interface can be expanded in order to provide more support, if there are really necessities at some point and also some bugs could arise as long as the patch needs a bit of further testing. Bump __FreeBSD_version in order to reflect the newbus lock introduction. Reviewed by: ed, hps, jhb, imp, mav, scottl No answer by: ariff, thompsa, yongari Tested by: pho, G. Trematerra <giovanni dot trematerra at gmail dot com>, Brandon Gooch <jamesbrandongooch at gmail dot com> Sponsored by: Yahoo! Incorporated Approved by: re (ksmith) Notes: svn path=/head/; revision=196037
* Last minute TTY API change: remove mutex argument from tty_alloc().Ed Schouten2009-05-291-1/+1
| | | | | | | | | | | | | I don't want people to override the mutex when allocating a TTY. It has to be there, to keep drivers like syscons happy. So I'm creating a tty_alloc_mutex() which can be used in those cases. tty_alloc_mutex() should eventually be removed. The advantage of this approach, is that we can just remove a function, without breaking the regular API in the future. Notes: svn path=/head/; revision=193018
* Start to convert this over to the new tty layer. These changes allowDoug Ambrisko2009-04-271-188/+107
| | | | | | | | | | | | | | | | | this driver to compile and limp along with the new layer. These changes do not deal with proper locking around access to the HW. This is only a starting point. I have not tested modem control but tip seems to work okay and I can send and receive characters which I needed for one of my -current boxes. I have not tied this driver back up to the build since I don't want people to think it is ready for prime time. If anyone else has some cycles to work on this feel free to! Also add support for a 16 port PCI interface I have at work. Glanced at by: ed Notes: svn path=/head/; revision=191563
* Initialize DWBuf[3].Peter Wemm2007-07-051-0/+1
| | | | | | | Approved by: re (rwatson, blanket) Notes: svn path=/head/; revision=171236
* Fix Rocketport so that it does not crash the system when a device pointerRemko Lodder2007-06-261-2/+12
| | | | | | | | | | | | | | | | | | | | | | changes for example: (From Craig Leres): tip to a rocketport line run "/etc/rc.d/devfs restart" exit tip (wait for the system to reboot) Thanks to Robert Watson for poking me to fix this. PR: kern/109152 Approved by: imp (mentor) Approved by: re (kensmith) Reviewed by: jhb Submitted by: Craig Leres <leres@ee dot lbl dot gov> Notes: svn path=/head/; revision=171045
* - Make rp(4) 64-bit- and endian-clean as well as work on strict alignmentMarius Strobl2006-11-201-34/+30
| | | | | | | | | | | | | archs. [1] - Instead of bus_space_{read,write}*(rman_get_bustag(), rman_get_bushandle()) use bus_{read,write}*() for efficiency. Reported by: Peter Losher [1] Tested on: i386, sparc64 MFC after: 2 weeks Notes: svn path=/head/; revision=164439
* Fix -Wundef from compiling the amd64 LINT.Ruslan Ermilov2005-12-041-1/+1
| | | | Notes: svn path=/head/; revision=153084
* Fix support for multiple RocketPort cards in the same machine by includingJohn Baldwin2005-11-081-1/+1
| | | | | | | | | | the RocketPort unit number in the name of the devices. This means that unit 0 device names will change from ttyR0 .. ttyRf to ttyR00 .. ttyR0f. Reviewed by: phk Notes: svn path=/head/; revision=152190
* we know it is called rpclose() so call it directly.Poul-Henning Kamp2005-10-161-1/+1
| | | | Notes: svn path=/head/; revision=151384
* Eliminate two unused arguments to ttycreate().Poul-Henning Kamp2005-10-161-1/+1
| | | | Notes: svn path=/head/; revision=151383
* Start each of the license/copyright comments with /*-, minor shuffle of linesWarner Losh2005-01-061-1/+1
| | | | Notes: svn path=/head/; revision=139749
* Use tty layer generic code instead of local copy.Poul-Henning Kamp2004-10-041-521/+106
| | | | | | | | Device names {cua,tty}R%r[.init,.lock] clashes with pty(4) driver and allows for only 32 ports. This should probably be revisited. Notes: svn path=/head/; revision=136111
* Use ttyalloc() instead of ttymalloc(NULL)Poul-Henning Kamp2004-09-171-1/+1
| | | | Notes: svn path=/head/; revision=135367
* Preparation commit for the tty cleanups that will follow in the nearPoul-Henning Kamp2004-07-151-1/+1
| | | | | | | | | | | | future: rename ttyopen() -> tty_open() and ttyclose() -> tty_close(). We need the ttyopen() and ttyclose() for the new generic cdevsw functions for tty devices in order to have consistent naming. Notes: svn path=/head/; revision=132226
* Introduce ttygone() which indicates that the hardware is detached.Poul-Henning Kamp2004-07-111-16/+4
| | | | | | | Move dtrwait logic to the generic TTY level. Notes: svn path=/head/; revision=131981
* Put the pre FreeBSD-2.x tty compat code under BURN_BRIDGES.Poul-Henning Kamp2004-06-211-0/+4
| | | | Notes: svn path=/head/; revision=130892
* Prevent the rp driver from panic'ing on first access and make atAndrew Gallatin2004-06-211-21/+26
| | | | | | | | | | | | | | | | | | | | | | least the pci device unloadable - Use ttymalloc() rather than a plain malloc to allocate the rp->rp_tty ttys. This is now required due to the recent locking changes to ttys and prevents a panic due to locking an unitialized t_mtx. - Allow the pci driver to be unloaded. This involved moving the call rp_releaseresource() to the end of rp_pcireleaseresource(), since rp_pcireleaseresource() uses ctlp->dev, which is freed by rp_releaseresource(). - Allow the generic part of the driver to be unattached by providing a hook to cancel timeouts. Glanced at by: obrien Notes: svn path=/head/; revision=130841
* Do the dreaded s/dev_t/struct cdev */Poul-Henning Kamp2004-06-161-5/+5
| | | | | | | Bump __FreeBSD_version accordingly. Notes: svn path=/head/; revision=130585
* Deorbit COMPAT_SUNOS.Poul-Henning Kamp2004-06-111-2/+2
| | | | | | | | We inherited this from the sparc32 port of BSD4.4-Lite1. We have neither a sparc32 port nor a SunOS4.x compatibility desire these days. Notes: svn path=/head/; revision=130344
* Centralize the line discipline optimization determination in a functionPoul-Henning Kamp2004-06-041-21/+4
| | | | | | | | | | | | called ttyldoptim(). Use this function from all the relevant drivers. I belive no drivers finger linesw[] directly anymore, paving the way for locking and refcounting. Notes: svn path=/head/; revision=130096
* Machine generated patch which changes linedisc calls from accessingPoul-Henning Kamp2004-06-041-10/+10
| | | | | | | | | linesw[] directly to using the ttyld...() functions The ttyld...() functions ar inline so there is no performance hit. Notes: svn path=/head/; revision=130077
* Make the remaining serial drivers call ttyioctl() rather than callingPoul-Henning Kamp2004-06-041-10/+3
| | | | | | | the linedisc directly. Notes: svn path=/head/; revision=130057
* There is no need to explicitly call the stop function. In all likelyhoodPoul-Henning Kamp2004-06-011-1/+0
| | | | | | | ->l_close() did it and ttyclose certainly will. Notes: svn path=/head/; revision=129939
* Device megapatch 4/6:Poul-Henning Kamp2004-02-211-1/+2
| | | | | | | | | | | Introduce d_version field in struct cdevsw, this must always be initialized to D_VERSION. Flip sense of D_NOGIANT flag to D_NEEDGIANT, this involves removing four D_NOGIANT flags and adding 145 D_NEEDGIANT flags. Notes: svn path=/head/; revision=126080
* Device megapatch 3/6:Poul-Henning Kamp2004-02-211-2/+0
| | | | | | | | | | | | | | | Add missing D_TTY flags to various drivers. Complete asserts that dev_t's passed to ttyread(), ttywrite(), ttypoll() and ttykqwrite() have (d_flags & D_TTY) and a struct tty pointer. Make ttyread(), ttywrite(), ttypoll() and ttykqwrite() the default cdevsw methods for D_TTY drivers and remove the explicit initializations in various drivers cdevsw structures. Notes: svn path=/head/; revision=126078
* Device megapatch 1/6:Poul-Henning Kamp2004-02-211-2/+0
| | | | | | | | | | Free approx 86 major numbers with a mostly automatically generated patch. A number of strategic drivers have been left behind by caution, and a few because they still (ab)use their major number. Notes: svn path=/head/; revision=126076
* Use __FBSDID().David E. O'Brien2003-08-241-1/+3
| | | | | | | Also some minor style cleanups. Notes: svn path=/head/; revision=119418
* Undo single-intance inlining which is way above the comfort limit for GCC.Poul-Henning Kamp2003-07-231-3/+2
| | | | Notes: svn path=/head/; revision=117926
* Gigacommit to improve device-driver source compatibility betweenPoul-Henning Kamp2003-03-031-13/+9
| | | | | | | | | | | | | | | | branches: Initialize struct cdevsw using C99 sparse initializtion and remove all initializations to default values. This patch is automatically generated and has been tested by compiling LINT with all the fields in struct cdevsw in reverse order on alpha, sparc64 and i386. Approved by: re(scottl) Notes: svn path=/head/; revision=111815
* Remove #include <sys/dkstat.h>Poul-Henning Kamp2003-02-161-1/+0
| | | | Notes: svn path=/head/; revision=111002
* Fix data corruption caused by last byte in oddly sized transfers being readTor Egge2002-10-201-2/+3
| | | | | | | to wrong location in RxBuf and written from wrong location in TxBuf. Notes: svn path=/head/; revision=105538
* Be consistent about functions being static.Poul-Henning Kamp2002-10-161-3/+3
| | | | | | | Spotted by: FlexeLint. Notes: svn path=/head/; revision=105215
* Change the suser() API to take advantage of td_ucred as well as do aJohn Baldwin2002-04-011-3/+3
| | | | | | | | | | | | | | | general cleanup of the API. The entire API now consists of two functions similar to the pre-KSE API. The suser() function takes a thread pointer as its only argument. The td_ucred member of this thread must be valid so the only valid thread pointers are curthread and a few kernel threads such as thread0. The suser_cred() function takes a pointer to a struct ucred as its first argument and an integer flag as its second argument. The flag is currently only used for the PRISON_ROOT flag. Discussed on: smp@ Notes: svn path=/head/; revision=93593
* Remove __P.Alfred Perlstein2002-03-201-5/+5
| | | | Notes: svn path=/head/; revision=92739
* #include "opt_compat.h" so that the support for old ioctls can actuallyBruce Evans2002-02-151-0/+6
| | | | | | | | | | | | | | | be compiled. Old tty ioctls are still used (possibly ifdef'ed) in at least the following programs in the src tree: atc des ee fontedit gdb gdbserver lock ntp perl5 tcsh telnet top vttest rp.c: Unremoved used variables so that the support for old ioctls actually compiles. Not tested at runtime by: bde Notes: svn path=/head/; revision=90684
* Force the RxBuf and TxBuf arrays to be aligned on 16-bit boundaries toAndrew Gallatin2001-11-051-1/+1
| | | | | | | | | make the driver work on alpha approved by: tanimura Notes: svn path=/head/; revision=86082
* KSE Milestone 2Julian Elischer2001-09-121-10/+10
| | | | | | | | | | | | | | | | | Note ALL MODULES MUST BE RECOMPILED make the kernel aware that there are smaller units of scheduling than the process. (but only allow one thread per process at this time). This is functionally equivalent to teh previousl -current except that there is a thread associated with each process. Sorry john! (your next MFC will be a doosie!) Reviewed by: peter@freebsd.org, dillon@freebsd.org X-MFC after: ha ha ha ha Notes: svn path=/head/; revision=83366
* Send the remains (such as I have located) of "block major numbers" toPoul-Henning Kamp2001-03-261-1/+0
| | | | | | | the bit-bucket. Notes: svn path=/head/; revision=74810
* Convert more malloc+bzero to malloc+M_ZERO.David Malone2000-12-081-4/+3
| | | | | | | | Submitted by: josh@zipperup.org Submitted by: Robert Drehmel <robd@gmx.net> Notes: svn path=/head/; revision=69781
* Move suser() and suser_xxx() prototypes and a related #define fromPoul-Henning Kamp2000-10-291-1/+0
| | | | | | | | | | | | <sys/proc.h> to <sys/systm.h>. Correctly document the #includes needed in the manpage. Add one now needed #include of <sys/systm.h>. Remove the consequent 48 unused #includes of <sys/proc.h>. Notes: svn path=/head/; revision=67893
* Fix a bug upon initialization. (_INDX_ADDR -> _INDX_DATA)Seigo Tanimura2000-08-211-5/+6
| | | | Notes: svn path=/head/; revision=64890
* - Eliminate rpread(). Call generic ttyread(). (cf rev 1.33)Seigo Tanimura2000-06-121-26/+4
| | | | | | | | | | - Comment out deftermios. Termioschars() will give the default value. Pointed out by: bde Notes: svn path=/head/; revision=61581
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