Commit Graph

200 Commits

Author SHA1 Message Date
pfg
96555d3833 sys/dev: extend use of the howmany() macro when available.
We have a howmany() macro in the <sys/param.h> header that is
convenient to re-use as it makes things easier to read.
2016-04-26 15:03:15 +00:00
jhibbits
34284c5396 Fix the build.
Pointy-hat to:	jhibbits
Spotted by:	bde
2016-02-25 04:32:17 +00:00
jhibbits
fbc9874dd0 Replace several bus_alloc_resource() calls using default arguments with bus_alloc_resource_any()
Since these calls only use default arguments, bus_alloc_resource_any() is the
right call.

Differential Revision: https://reviews.freebsd.org/D5306
2016-02-19 03:37:56 +00:00
piso
6a2ffa86e5 o break newbus api: add a new argument of type driver_filter_t to
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@
2007-02-23 12:19:07 +00:00
bde
ab7949c755 Fixed a panic in the probe. The memory resource was accessed after
releasing it.  This seems to have worked until a few days ago, but
now the memory is unmapped.
2007-01-13 11:00:56 +00:00
ru
fe60acc502 Catch up with new interrupt handling code. 2005-10-26 06:44:59 +00:00
phk
2853ff590d Eliminate two unused arguments to ttycreate(). 2005-10-16 20:22:56 +00:00
imp
a2e81fc93f Use BUS_PROBE_DEFAULT for pci probe return value 2005-03-05 18:30:12 +00:00
imp
4b319958e7 Start each of the license/copyright comments with /*-, minor shuffle of lines 2005-01-06 01:43:34 +00:00
phk
0654d8c0e2 Use generic tty code instead of local copy.
Also divorce this driver from the sio driver.
2004-10-05 07:42:19 +00:00
phk
f00200d8a4 Preparation commit for the tty cleanups that will follow in the near
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.
2004-07-15 20:47:41 +00:00
phk
3683e698d2 Introduce ttygone() which indicates that the hardware is detached.
Move dtrwait logic to the generic TTY level.
2004-07-11 15:18:39 +00:00
jhb
050c6affec - Shorten the names for the TTY related swi interrupt handlers as the
'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)
2004-06-28 16:17:11 +00:00
phk
0567d4ef5f Pick the hotchar out of the tty structure instead of caching private
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.
2004-06-26 09:20:07 +00:00
phk
ace6a2a6f7 Remove the TIOCDCDTIMESTAMP option.
The RFC-2783 PPS-API (<sys/timepps.h>) provides better and more
configurable service.
2004-06-22 20:32:17 +00:00
phk
0033eabc1b Put the pre FreeBSD-2.x tty compat code under BURN_BRIDGES. 2004-06-21 22:57:16 +00:00
phk
40dd98a3bd Second half of the dev_t cleanup.
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.
2004-06-17 17:16:53 +00:00
phk
dfd1f7fd50 Do the dreaded s/dev_t/struct cdev */
Bump __FreeBSD_version accordingly.
2004-06-16 09:47:26 +00:00
phk
86602fc06c Deorbit COMPAT_SUNOS.
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.
2004-06-11 11:16:26 +00:00
phk
17b52df3d7 Centralize the line discipline optimization determination in a function
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.
2004-06-04 21:55:55 +00:00
phk
06049d3eaf Manual edits to change linesw[]-frobbing to ttyld_*() calls. 2004-06-04 20:04:52 +00:00
phk
ba3920e2a2 Machine generated patch which changes linedisc calls from accessing
linesw[] directly to using the ttyld...() functions

The ttyld...() functions ar inline so there is no performance hit.
2004-06-04 16:02:56 +00:00
phk
9bb2c2f2d2 Make the remaining serial drivers call ttyioctl() rather than calling
the linedisc directly.
2004-06-04 08:02:37 +00:00
phk
e0c89dae13 There is no need to explicitly call the stop function. In all likelyhood
->l_close() did it and ttyclose certainly will.
2004-06-01 11:57:15 +00:00
phk
9d102d7d5a Add missing <sys/module.h> includes 2004-05-30 20:08:47 +00:00
peter
c9b903477c Remove "register_t eflags; eflags = read_eflags();" because 1) it wasn't
subsequently used in the code, and 2) it doesn't compile on !i386.
2004-05-16 21:22:45 +00:00
bde
8d5cda7c8f Reduce differences with cy_isa.c: fixed an unsorted include.
Remove unused includes.
2004-05-01 18:43:00 +00:00
bde
a24b9ad2a1 Reduce differences with cy_pci.c: add a description of this file, and
don't use too many tabs in declarations.

Attempt to complete KNFization of this file (1 more indentation fix).
2004-05-01 18:42:14 +00:00
bde
08de77584a Adjust pathnames for the move from i386/isa to dev/cy.
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.
2004-05-01 18:09:16 +00:00
bde
fbdc9f2798 New header for exporting declarations of things not closely related to
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.
2004-05-01 17:44:03 +00:00
bde
9ff6eab8e1 Removed bits related to isa configuration. These have been moved to
cy_isa.c via a repo-copy of this file (except for some static declarations
which will become non-static in a new header).
2004-05-01 17:21:07 +00:00
bde
3e1a25af88 Remove bits not related to isa configuration. This file was repo-copied
from cy.c.
2004-05-01 17:10:23 +00:00
bde
8ff01ad785 Converted the isa probe and attach to new-bus so that this driver works
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
2004-04-05 08:16:23 +00:00
bde
e061b47c7c Moved initialization of the lock from the (isa) probe function to the
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.
2004-04-05 07:43:18 +00:00
phk
ad925439e0 Device megapatch 4/6:
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.
2004-02-21 21:10:55 +00:00
phk
fcf7e634fb Device megapatch 3/6:
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.
2004-02-21 20:41:11 +00:00
phk
df397dedea Device megapatch 1/6:
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.
2004-02-21 19:42:58 +00:00
bde
9eb4aeb903 Fixed some minor indentation bugs.
Approved by:	re (scottl)
2003-12-02 12:47:08 +00:00
bde
68eb4e63a3 Fixed breakage of the pci case of the cy driver by the new interrupt
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)
2003-12-02 12:36:00 +00:00
bde
5aca7660ae Restored the call to schedsofttty() (now spelled swi_sched(...)) again.
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).
2003-11-16 13:31:45 +00:00
bde
60cfaec287 Localized the cy driver's locking. 2003-11-16 00:55:54 +00:00
bde
dbd9fee48d MFsio (sio.c 1.413: cleaned up and fixed setting of speeds in comparam()).
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.
2003-09-27 12:40:23 +00:00
bde
6d69006c55 Quick fix for bitrot in locking in the SMP case. cd_getreg() and
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.
2003-09-27 10:30:03 +00:00
obrien
7d804031bd Use __FBSDID(). 2003-06-11 06:34:30 +00:00
obrien
999f42eba3 Use __FBSDID(). 2003-06-02 16:32:55 +00:00
mdodd
261178d14f - Express hard dependencies on bus (pci, isa, pccard) and
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.)
2003-04-15 06:37:30 +00:00
phk
b67232b68c Make nokqfilter() return the correct return value.
Ditch the D_KQFILTER flag which was used to prevent calling NULL pointers.
2003-03-03 16:24:47 +00:00
phk
0ae911eb0e Gigacommit to improve device-driver source compatibility between
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)
2003-03-03 12:15:54 +00:00
phk
4bfb37f22e Remove #include <sys/dkstat.h> 2003-02-16 14:13:23 +00:00
jhb
dc2e474f79 Change the suser() API to take advantage of td_ucred as well as do a
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@
2002-04-01 21:31:13 +00:00