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* chore: replace {0, 0} with {DEV,KOBJ}METHOD_ENDEnji Cooper2026-02-251-1/+1
| | | | | | | | | | | | | | Both of the aforementioned macros have been present in FreeBSD for well over a decade: 2009 for `KOBJMETHOD_END`; 2011 for `DEVMETHOD_END`. Adapt all hardcoded references of `{0, 0}` with `DEVMETHOD_END` and `KOBJMETHOD_END` as appropriate. This helps ensure that future adaptations to drivers following patterns documented in driver(9) can be made more easily/without issue. MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D55414
* newbus: replace leftover device unit wildcardsAhmad Khalifa2025-06-211-1/+1
| | | | | | Reviewed by: imp, jhb Approved by: imp (mentor) Differential Revision: https://reviews.freebsd.org/D50913
* newbus: replace -1 in BUS_ADD_CHILD(...-1) with DEVICE_UNIT_ANYWarner Losh2024-07-251-1/+1
| | | | Sponsored by: Netflix
* sys: Automated cleanup of cdefs and other formattingWarner Losh2023-11-271-1/+0
| | | | | | | | | | | | | | | | Apply the following automated changes to try to eliminate no-longer-needed sys/cdefs.h includes as well as now-empty blank lines in a row. Remove /^#if.*\n#endif.*\n#include\s+<sys/cdefs.h>.*\n/ Remove /\n+#include\s+<sys/cdefs.h>.*\n+#if.*\n#endif.*\n+/ Remove /\n+#if.*\n#endif.*\n+/ Remove /^#if.*\n#endif.*\n/ Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/types.h>/ Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/param.h>/ Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/capsicum.h>/ Sponsored by: Netflix
* sys: Remove $FreeBSD$: one-line .c patternWarner Losh2023-08-161-2/+0
| | | | Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/
* ppbus/ppc: Remove unused devclass arguments to DRIVER_MODULE.John Baldwin2022-05-061-3/+2
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* ppbus: Set the lock for pps interface, update to latest apiWarner Losh2021-09-011-2/+6
| | | | | | | | | | | Since we take a lock when we enter the ioctl, we need to set driver_mtx in the pps structure so it can be dropped while sleeping during a call to timepps_fetch() with a non-zero timeout (PPS_CANWAIT feature). MFC After: 5 days Sponsored by: Netflix Reviewed by: ian Differential Revision: https://reviews.freebsd.org/D31763
* ppbus: clean up empty lines in .c and .h filesMateusz Guzik2020-09-011-1/+0
| | | | Notes: svn path=/head/; revision=365176
* SPDX: use the Beerware identifier.Pedro F. Giffuni2017-11-301-0/+2
| | | | Notes: svn path=/head/; revision=326408
* Add locking to ppc and ppbus and mark the whole lot MPSAFE:John Baldwin2009-01-211-33/+56
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - To avoid having a bunch of locks that end up always getting acquired as a group, give each ppc(4) device a mutex which it shares with all the child devices including ppbus(4), lpt(4), plip(4), etc. This mutex is then used for all the locking. - Rework the interrupt handling stuff yet again. Now ppbus drivers setup their interrupt handler during attach and tear it down during detach like most other drivers. ppbus(4) only invokes the interrupt handler of the device that currently owns the bus (if any) when an interrupt occurs, however. Also, interrupt handlers in general now accept their softc pointers as their argument rather than the device_t. Another feature of the ppbus interrupt handlers is that they are called with the parent ppc device's lock already held. This minimizes the number of lock operations during an interrupt. - Mark plip(4), lpt(4), pcfclock(4), ppi(4), vpo(4) MPSAFE. - lpbb(4) uses the ppc lock instead of Giant. - Other plip(4) changes: - Add a mutex to protect the global tables in plip(4) and free them on module unload. - Add a detach routine. - Split out the init/stop code from the ioctl routine into separate functions. - Other lpt(4) changes: - Use device_printf(). - Use a dedicated callout for the lptout timer. - Allocate the I/O buffers at attach and detach rather than during open and close as this simplifies the locking at the cost of 1024+32 bytes when the driver is attached. - Other ppi(4) changes: - Use an sx lock to serialize open and close. - Remove unused HADBUS flag. - Add a detach routine. - Use a malloc'd buffer for each read and write to avoid races with concurrent read/write. - Other pps(4) changes: - Use a callout rather than a callout handle with timeout(). - Conform to the new ppbus requirements (regular mutex, non-filter interrupt handler). pps(4) is probably going to have to become a standalone driver that doesn't use ppbus(4) to satisfy it's requirements for low latency as a result. - Use an sx lock to serialize open and close. - Other vpo(4) changes: - Use the parent ppc device's lock to create the CAM sim instead of Giant. - Other ppc(4) changes: - Fix ppc_isa's detach method to detach instead of calling attach. Tested by: no one :-( Notes: svn path=/head/; revision=187576
* Various whitespace and style fixes.John Baldwin2008-11-161-4/+4
| | | | Notes: svn path=/head/; revision=185003
* Several cleanups to remove the need for explicit unit numbers and a fewJohn Baldwin2008-10-211-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | other fixes: - Add pointers back to device_t objects in softc structures instead of storing the unit and using devclass_get_device(). - Add 'lpbb', 'pcf', 'pps', and 'vpo' child devices to every 'ppbus' device instead of just the first one. - Store softc pointers in si_drv1 of character devices instead of pulling the unit number from the minor number and using devclass_get_softc() and devclass_get_device(). - Store the LP_BYPASS flag in si_drv2 instead of encoding it in the minor number. - Destroy character devices for lpt(4) when detaching the device. - Use bus_print_child_footer() instead of duplicating it in ppbus_print_child() and fix ppbus_print_child()'s return value. - Remove unused AVM ivar from ppbus. - Don't store the 'mode' ivar in the ppbus ivars since we always fetch it from the parent anyway. - Try to detach all the child devices before deleting them in ppbus_detach(). - Use pause() instead of a tsleep() on a dummy address when polling the ppbus. - Use if_printf() and device_printf() instead of explicit names with unit numbers. Silence on: current@ Notes: svn path=/head/; revision=184130
* Rework the handling of interrupt handlers for children of ppc and ppbus:John Baldwin2008-09-151-9/+5
| | | | | | | | | | | | | | | | | | | | - Retire IVARs for passing IRQs around. Instead, ppbus and ppc now allow child devices to access the interrupt by via a rid 0 IRQ resource using bus_alloc_resource_any(). - ppc creates its own interrupt event to manage the interrupt handlers of child devices. ppc does not allow child devices to use filters. It could allow this if needed, but none of the current drivers use them and it adds a good bit of complication. It uses intr_event_execute_handlers() to fire the child device interrupt handlers from its threaded interrupt handler. - Remove the ppbus_dummy_intr() hack. Now the ppc device always has an interrupt handler registered and we no longer bounce all the way up to nexus to manage adding/removing ppbus child interrupt handlers. Instead, the child handlers are added and removed to the private interrupt event in the ppc device. Notes: svn path=/head/; revision=183053
* o break newbus api: add a new argument of type driver_filter_t toPaolo Pisati2007-02-231-4/+5
| | | | | | | | | | | | | | | | bus_setup_intr() o add an int return code to all fast handlers o retire INTR_FAST/IH_FAST For more info: http://docs.freebsd.org/cgi/getmsg.cgi?fetch=465712+0+current/freebsd-current Reviewed by: many Approved by: re@ Notes: svn path=/head/; revision=166901
* Add missing MODULE_DEPEND() so that ppbus.ko and these .ko's can beRuslan Ermilov2005-12-211-0/+1
| | | | | | | loaded dynamically. Notes: svn path=/head/; revision=153610
* In ppsintr, we needed ppsdev to get to the softc and nothing else.Warner Losh2005-04-141-11/+7
| | | | | | | | | | | | | | | | | | Save a memory dereference in the ISR by passing this in directly. Calling pps_capture is MP safe for all other operations on struct pps_state, so there's no need to aquire the lock before we do this, even from a fast ISR. Avoid dereferencing sc->ppbus until after pps_capture is called as well. These actions reduce somewhat the cache effects that cause variance in interrupt times. On an especially slow test machine (300MHz Cyrix GXm), this reduces the interrupt latency about about 10% (from 21us to 19us) and helps a little with the variance (although most of the variance seems to be caused by lots of interrupt masking). This also happens fixes one or two of bde's style issues. Notes: svn path=/head/; revision=145075
* When locking a MTX_SPIN, one needs to use mtx_lock_spin.Warner Losh2005-03-171-5/+7
| | | | | | | | | Lock the timeout routine as well. Submitted by: bde Notes: svn path=/head/; revision=143766
* Make the pps interrupt register as MPSAFE and FAST. Use a spin lockWarner Losh2005-03-111-6/+15
| | | | | | | | | | | to syncrhonize access to the data as a result. This makes the pps less likely to miss the 1ms pulse that I'm feeding it, but not entirely reliable yet on my 133MHz P5. Reviewed by: phk Notes: svn path=/head/; revision=143398
* Kill trailing white spaceWarner Losh2005-03-101-3/+3
| | | | Notes: svn path=/head/; revision=143390
* Back out previous commit. The description didn't match the commit,Warner Losh2005-03-061-1/+1
| | | | | | | | and marking this interrupt as fast isn't quite right. It also needs to be MP Safe, and I've not done that work (yet). Notes: svn path=/head/; revision=143169
* Use BUS_PROBE_DEFAULT for pci probe return valueWarner Losh2005-03-051-1/+1
| | | | Notes: svn path=/head/; revision=143158
* Start each of the license/copyright comments with /*-, minor shuffle of linesWarner Losh2005-01-061-1/+1
| | | | Notes: svn path=/head/; revision=139749
* Newbus returns a zeroed softc, so there's no need to call bzero() here.Olivier Houchard2004-07-091-2/+0
| | | | Notes: svn path=/head/; revision=131874
* 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
* Prevent the strange situation that after each load/unload of a ppbusGuido van Rooij2004-03-181-1/+5
| | | | | | | | | | | | | | | | | | device, the device is probed multiple times (so each device is detected N times after unloading/loading the module N-1 times). The real fix is (quote Doug and Warner): > : In an ideal world, there should be some kind of BUS_UNIDENTIFY method > : which a driver could use to delete the devices it created in > : BUS_IDENTIFY. > > Or the bus would have a driver deleted routine that got called and it > would remove all instances of the devclass attached to it. Reviewed by: Doug Rabson & Warner Losh Notes: svn path=/head/; revision=127189
* Device megapatch 4/6:Poul-Henning Kamp2004-02-211-0/+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 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
* Gigacommit to improve device-driver source compatibility betweenPoul-Henning Kamp2003-03-031-13/+5
| | | | | | | | | | | | | | | | 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
* Synchronize mode for ppsX devices to that found previously in MAKEDEVRobert Watson2002-12-271-2/+2
| | | | | | | | | for consistency. Submitted by: kris Notes: svn path=/head/; revision=108322
* Warning fixes for sizeof(int) != sizeof(void *).John Baldwin2002-11-071-6/+6
| | | | Notes: svn path=/head/; revision=106563
* Fix warnings due to macro varargs.Peter Wemm2002-05-241-1/+1
| | | | Notes: svn path=/head/; revision=97228
* Simplify the RFC2783 and PPS_SYNC timestamp collection API.Poul-Henning Kamp2002-04-261-15/+7
| | | | Notes: svn path=/head/; revision=95523
* This makes ppbus childs like lpt and ppi succesfully connect to moreBernd Walter2002-04-071-1/+1
| | | | | | | | | | | than just the first ppbus. The child drivers always tried to attach unit 0. Reviewed by: gallatin Approved by: gallatin Notes: svn path=/head/; revision=94154
* Make this driver a better citizen by moving dev creation andWarner Losh2001-12-191-46/+45
| | | | | | | | | | other initialization into attach from probe. Also hide a few printfs behind a bootverbose. approved in principle by: phk Notes: svn path=/head/; revision=88220
* Give the pps driver an additional 8 inputs if we can persuade thePoul-Henning Kamp2001-09-221-40/+151
| | | | | | | | | ppc to go into EPP mode. These 8 inputs are timestamped in polled loop so their resolution will be nanoseconds but their granularity will only be 1/hz. Notes: svn path=/head/; revision=83818
* KSE Milestone 2Julian Elischer2001-09-121-3/+3
| | | | | | | | | | | | | | | | | 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
* Unused include: #include "pps.h"Peter Wemm2000-06-101-1/+0
| | | | Notes: svn path=/head/; revision=61490
* Remove ~25 unneeded #include <sys/conf.h>Poul-Henning Kamp2000-04-191-1/+0
| | | | | | | Remove ~60 unneeded #include <sys/malloc.h> Notes: svn path=/head/; revision=59391
* Isolate the Timecounter internals in their own two files.Poul-Henning Kamp2000-03-201-0/+1
| | | | | | | | | | | | | | | | | | Make the public interface more systematically named. Remove the alternate method, it doesn't do any good, only ruins performance. Add counters to profile the usage of the 8 access functions. Apply the beer-ware to my code. The weird +/- counts are caused by two repocopies behind the scenes: kern/kern_clock.c -> kern/kern_tc.c sys/time.h -> sys/timetc.h (thanks peter!) Notes: svn path=/head/; revision=58377
* Some newbus-inspired tidy-ups. Use device_identify() rather than scanningPeter Wemm2000-01-231-20/+21
| | | | | | | | | | | | | | | the resource table to locate children. The 'at ppbus?' can go again. Remove a few #if Nxxx > 0' type things, config arranges this for us. Move the newbus method glue next to the DRIVER_MODULE() stuff so we don't need extra prototypes. Don't set device descriptions until after the possibility of the probe returning an error. Remove all cdevsw_add() calls, all the drivers that did this also use make_dev() correctly, so it's not required. A couple of other minor nits. Notes: svn path=/head/; revision=56455
* Port of ppbus standalone framework to the newbus system.Nicolas Souchu2000-01-141-55/+89
| | | | | | | | | | | | | | | | | | | | | | | | Note1: the correct interrupt level is invoked correctly for each driver. For this purpose, drivers request the bus before being able to call BUS_SETUP_INTR and BUS_TEARDOWN_INTR call is forced by the ppbus core when drivers release it. Thus, when BUS_SETUP_INTR is called at ppbus driver level, ppbus checks that the caller owns the bus and stores the interrupt handler cookie (in order to unregister it later). Printing is impossible while plip link is up is still TRUE. vpo (ZIP driver) and lpt are make in such a way that using the ZIP and printing concurrently is permitted is also TRUE. Note2: specific chipset detection is not done by default. PPC_PROBE_CHIPSET is now needed to force chipset detection. If set, the flags 0x40 still avoid detection at boot. Port of the pcf(4) driver to the newbus system (was previously directly connected to the rootbus and attached by a bogus pcf_isa_probe function). Notes: svn path=/head/; revision=55939
* Remove five now unused fields from struct cdevsw. They should neverPoul-Henning Kamp1999-09-251-5/+0
| | | | | | | | | | | have been there in the first place. A GENERIC kernel shrinks almost 1k. Add a slightly different safetybelt under nostop for tty drivers. Add some missing FreeBSD tags Notes: svn path=/head/; revision=51658
* $Id$ -> $FreeBSD$Peter Wemm1999-08-281-1/+1
| | | | Notes: svn path=/head/; revision=50477
* Remove compile time limit on number of devices.Poul-Henning Kamp1999-08-081-25/+17
| | | | Notes: svn path=/head/; revision=49550
* Simplify cdevsw registration.Poul-Henning Kamp1999-05-311-4/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The cdevsw_add() function now finds the major number(s) in the struct cdevsw passed to it. cdevsw_add_generic() is no longer needed, cdevsw_add() does the same thing. cdevsw_add() will print an message if the d_maj field looks bogus. Remove nblkdev and nchrdev variables. Most places they were used bogusly. Instead check a dev_t for validity by seeing if devsw() or bdevsw() returns NULL. Move bdevsw() and devsw() functions to kern/kern_conf.c Bump __FreeBSD_version to 400006 This commit removes: 72 bogus makedev() calls 26 bogus SYSINIT functions if_xe.c bogusly accessed cdevsw[], author/maintainer please fix. I4b and vinum not changed. Patches emailed to authors. LINT probably broken until they catch up. Notes: svn path=/head/; revision=47640
* This commit should be a extensive NO-OP:Poul-Henning Kamp1999-05-301-6/+22
| | | | | | | | | | | | | | | | Reformat and initialize correctly all "struct cdevsw". Initialize the d_maj and d_bmaj fields. The d_reset field was not removed, although it is never used. I used a program to do most of this, so all the files now use the same consistent format. Please keep it that way. Vinum and i4b not modified, patches emailed to respective authors. Notes: svn path=/head/; revision=47625
* GC unused pps_drvinit() declarationPeter Wemm1999-05-061-2/+1
| | | | Notes: svn path=/head/; revision=46589
* Allow multiple opens.Poul-Henning Kamp1999-04-251-5/+10
| | | | Notes: svn path=/head/; revision=46053
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