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* Start each of the license/copyright comments with /*-, minor shuffle of linesimp2005-01-061-1/+1
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* Use generic tty code instead of local copy.phk2004-10-051-862/+269
| | | | Also divorce this driver from the sio driver.
* Preparation commit for the tty cleanups that will follow in the nearphk2004-07-151-1/+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.
* Introduce ttygone() which indicates that the hardware is detached.phk2004-07-111-37/+4
| | | | Move dtrwait logic to the generic TTY level.
* - Shorten the names for the TTY related swi interrupt handlers as thejhb2004-06-281-2/+2
| | | | | | | | 'tty:' prefix is largely redundant. - Fix the priority of the low-priority TTY SWIs that are hung off of the softclock thread. Submitted by: bde (2)
* Pick the hotchar out of the tty structure instead of caching privatephk2004-06-261-13/+12
| | | | | | | | copies. No current line disciplines have a dynamically changing hotchar, and expecting to receive anything sensible during a change in ldisc is insane so no locking of the hotchar field is necessary.
* Remove the TIOCDCDTIMESTAMP option.phk2004-06-221-11/+0
| | | | | The RFC-2783 PPS-API (<sys/timepps.h>) provides better and more configurable service.
* Put the pre FreeBSD-2.x tty compat code under BURN_BRIDGES.phk2004-06-211-0/+4
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* Second half of the dev_t cleanup.phk2004-06-171-1/+1
| | | | | | | | | | | The big lines are: NODEV -> NULL NOUDEV -> NODEV udev_t -> dev_t udev2dev() -> findcdev() Various minor adjustments including handling of userland access to kernel space struct cdev etc.
* Do the dreaded s/dev_t/struct cdev */phk2004-06-161-4/+4
| | | | Bump __FreeBSD_version accordingly.
* Deorbit COMPAT_SUNOS.phk2004-06-111-2/+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.
* Centralize the line discipline optimization determination in a functionphk2004-06-041-15/+1
| | | | | | | | | 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.
* Manual edits to change linesw[]-frobbing to ttyld_*() calls.phk2004-06-041-2/+2
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* Machine generated patch which changes linedisc calls from accessingphk2004-06-041-6/+6
| | | | | | linesw[] directly to using the ttyld...() functions The ttyld...() functions ar inline so there is no performance hit.
* Make the remaining serial drivers call ttyioctl() rather than callingphk2004-06-041-8/+3
| | | | the linedisc directly.
* There is no need to explicitly call the stop function. In all likelyhoodphk2004-06-011-1/+0
| | | | ->l_close() did it and ttyclose certainly will.
* Add missing <sys/module.h> includesphk2004-05-302-0/+2
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* Remove "register_t eflags; eflags = read_eflags();" because 1) it wasn'tpeter2004-05-161-4/+0
| | | | subsequently used in the code, and 2) it doesn't compile on !i386.
* Reduce differences with cy_isa.c: fixed an unsorted include.bde2004-05-011-5/+1
| | | | Remove unused includes.
* Reduce differences with cy_pci.c: add a description of this file, andbde2004-05-011-3/+7
| | | | | | don't use too many tabs in declarations. Attempt to complete KNFization of this file (1 more indentation fix).
* Adjust pathnames for the move from i386/isa to dev/cy.bde2004-05-013-15/+16
| | | | | | Adjust staticness and a variable name for the split of cy.c into cy.c and cy_isa.c. Use the new header required for the split to avoid repeating declarations in cy_pci.c.
* New header for exporting declarations of things not closely related tobde2004-05-011-0/+36
| | | | | hardware. A couple of the declarations were misplaced in cy_pci.c, and cy_isa.c needs a couple more. The exported interfaces should be cleaner.
* Removed bits related to isa configuration. These have been moved tobde2004-05-011-108/+0
| | | | | cy_isa.c via a repo-copy of this file (except for some static declarations which will become non-static in a new header).
* Remove bits not related to isa configuration. This file was repo-copiedbde2004-05-011-2863/+0
| | | | from cy.c.
* Converted the isa probe and attach to new-bus so that this driver worksbde2004-04-053-92/+164
| | | | | | | | | | | | | | | | | | | | | without the (defunct) isa compatibility shims. The new-bus-specific parts are very similar to the ones for the pci probe and attach. This was held up too long waiting for a repo copy to src/sys/dev/cy, so I decided to fix the files in their old place. This gives easier to read and merge diffs anyway. The "count" line in src/sys/conf/files won't be changed until after the repo copy, so old kernel configs that specify a count need not be (and must not be) changed until then. The count is just ignored in the driver. One unfinished detail is dynamic allocation of arrays with <count> and (<count> * 32) entries, and iteration over the arrays. This is now kludged with a fixed count of 10 (up to 10 cards with up to 32 ports each). Prodded by: imp Submitted by: mostly by imp Approved by: imp
* Moved initialization of the lock from the (isa) probe function to thebde2004-04-052-12/+12
| | | | | | | common attach function so that the lock gets initialized in all cases. This fixes breakage of the initialization of the lock in the pci case in rev.1.135 (between the releases of 5.1 and 5.2). The lock is only used in the SMP case, so this bug was not always fatal.
* Device megapatch 4/6:phk2004-02-212-2/+4
| | | | | | | | 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.
* Device megapatch 3/6:phk2004-02-212-6/+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.
* Device megapatch 1/6:phk2004-02-212-4/+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.
* Fixed some minor indentation bugs.bde2003-12-021-12/+12
| | | | Approved by: re (scottl)
* Fixed breakage of the pci case of the cy driver by the new interruptbde2003-12-023-79/+72
| | | | | | | | | | | | | | | | | | | | | | | | | | code. Both the driver and the new code were wrong. Driver interrupt handlers are supposed to take "void *vsc" arg, but some including all COMPAT_ISA drivers and the pci part of the cy driver want an "int unit" arg. They got this using bogus casts of function pointers which should have kept working despite their bogusness. However, the new interrupt code doesn't honor requests to pass an arg of ((void *)0), so things are very broken if the arg is actually a representation of unit 0. The fix is to use a normal "void *vsc" arg for the pci case and a wrapper for the COMPAT_ISA case (of the cy driver). This cleans up new-busification of the pci case but takes the COMPAT_ISA case a little further from new-bus. The corresponding bug for the COMPAT_ISA case has already been fixed similarly using a wrapper in compat_isa.c and we need another wrapper just to undo that. Fixed some directly related style bugs (mainly by removing compatibility cruft). cy.c: Fixed an indirectly related old bug in cyattach_common(). A wrong status was returned in the unlikely event that malloc() failed. Approved by: re (scottl)
* Restored the call to schedsofttty() (now spelled swi_sched(...)) again.bde2003-11-162-28/+38
| | | | | | | | Its restoration in rev.1.102 was mistranslated to the equivalent of setsofttty() in rev.1.105. This increased overheads by causing a context switch to the SWI handler after almost every interrupt. The increase was approx. 50% on a Celeron 366 (from 23 usec to 34 usec per interrupt).
* Localized the cy driver's locking.bde2003-11-162-46/+40
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* MFsio (sio.c 1.413: cleaned up and fixed setting of speeds in comparam()).bde2003-09-272-46/+24
| | | | | | This is just a cleanup here (modulo rev.1.108 of kern/tty.c), since the input speed can be different from to output speed and extra code to handle both speeds naturally handled all cases.
* Quick fix for bitrot in locking in the SMP case. cd_getreg() andbde2003-09-272-8/+48
| | | | | | | | | | cd_setreg() were still using !(read_eflags() & PSL_I) as the condition for the lock hidden by COM_LOCK() (if any) being held. This worked when spin mutexes and/or critical_enter() used hard interrupt disablement, but it has caused recursion on the non-recursive mutex com_mtx since all relevant interrupt disablement became soft. The recursion is harmless unless there are other bugs, but it breaks an invariant so it is fatal if spinlocks are witnessed.
* Use __FBSDID().obrien2003-06-111-2/+3
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* Use __FBSDID().obrien2003-06-022-4/+6
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* - Express hard dependencies on bus (pci, isa, pccard) andmdodd2003-04-151-0/+1
| | | | | | | | network layer (ether). - Don't abuse module names to facilitate ifconfig module loading; such abuse isn't really needed. (And if we do need type information associated with a module then we should make it explicit and not use hacks.)
* Make nokqfilter() return the correct return value.phk2003-03-032-2/+2
| | | | Ditch the D_KQFILTER flag which was used to prevent calling NULL pointers.
* Gigacommit to improve device-driver source compatibility betweenphk2003-03-032-28/+20
| | | | | | | | | | | | | 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)
* Remove #include <sys/dkstat.h>phk2003-02-162-2/+0
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* Change the suser() API to take advantage of td_ucred as well as do ajhb2002-04-012-6/+6
| | | | | | | | | | | | 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@
* Fixed some style bugs in the removal of __P(()). The main ones werebde2002-03-232-46/+44
| | | | | | not removing tabs before "__P((", and not outdenting continuation lines to preserve non-KNF lining up of code with parentheses. Switch to KNF formatting and/or rewrap the whole prototype in some cases.
* Remove __P.alfred2002-03-202-50/+50
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* Remove __P.alfred2002-03-201-2/+2
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* Work around a PLX9050 bug that causes system lockup in certain systems,bde2002-03-171-3/+4
| | | | | | | | | depending on the MMIO addresses allocated to the board. PR: 30965, 20845 (maybe) Submitted by: Daniela Squassoni <daniela@cyclades.com> Tested by: Arjan Knepper <arjan@jak.nl> Scott Klement <klemscot@klements.com>
* Initialize a variable bogusly to avoid a gcc bug that causes a spuriousbde2002-02-262-0/+6
| | | | warning.
* Merged cy_pcireg.h into the one file that uses it (cy_pci.c).bde2002-02-021-1/+16
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* Fixed breakage of interrupt setup in previous commit. It used anbde2002-02-021-0/+2
| | | | uninitialized variable in the !CY_PCI_FASTINTR case (*blush*).
* Change the preemption code for software interrupt thread schedules andjhb2002-01-052-20/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | mutex releases to not require flags for the cases when preemption is not allowed: The purpose of the MTX_NOSWITCH and SWI_NOSWITCH flags is to prevent switching to a higher priority thread on mutex releease and swi schedule, respectively when that switch is not safe. Now that the critical section API maintains a per-thread nesting count, the kernel can easily check whether or not it should switch without relying on flags from the programmer. This fixes a few bugs in that all current callers of swi_sched() used SWI_NOSWITCH, when in fact, only the ones called from fast interrupt handlers and the swi_sched of softclock needed this flag. Note that to ensure that swi_sched()'s in clock and fast interrupt handlers do not switch, these handlers have to be explicitly wrapped in critical_enter/exit pairs. Presently, just wrapping the handlers is sufficient, but in the future with the fully preemptive kernel, the interrupt must be EOI'd before critical_exit() is called. (critical_exit() can switch due to a deferred preemption in a fully preemptive kernel.) I've tested the changes to the interrupt code on i386 and alpha. I have not tested ia64, but the interrupt code is almost identical to the alpha code, so I expect it will work fine. PowerPC and ARM do not yet have interrupt code in the tree so they shouldn't be broken. Sparc64 is broken, but that's been ok'd by jake and tmm who will be fixing the interrupt code for sparc64 shortly. Reviewed by: peter Tested on: i386, alpha
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