i386 platform boots, it is no longer ISA-centric, and is fully dynamic.
Most old drivers compile and run without modification via 'compatability
shims' to enable a smoother transition. eisa, isapnp and pccard* are
not yet using the new resource manager. Once fully converted, all drivers
will be loadable, including PCI and ISA.
(Some other changes appear to have snuck in, including a port of Soren's
ATA driver to the Alpha. Soren, back this out if you need to.)
This is a checkpoint of work-in-progress, but is quite functional.
The bulk of the work was done over the last few years by Doug Rabson and
Garrett Wollman.
Approved by: core
fixing it. See rev.1.22 of ../sound/audio.c for fixes. When both
the C version and the asm version are inlined, and everything is cached,
the asm version is 1.75 times slower than the C version on P5's. On
K6's, it is only 1.25 times slower.
for possible buffer overflow problems. Replaced most sprintf()'s
with snprintf(); for others cases, added terminating NUL bytes where
appropriate, replaced constants like "16" with sizeof(), etc.
These changes include several bug fixes, but most changes are for
maintainability's sake. Any instance where it wasn't "immediately
obvious" that a buffer overflow could not occur was made safer.
Reviewed by: Bruce Evans <bde@zeta.org.au>
Reviewed by: Matthew Dillon <dillon@apollo.backplane.com>
Reviewed by: Mike Spengler <mks@networkcs.com>
truncated to 32 bits.
* Change the calling convention of the device mmap entry point to
pass a vm_offset_t instead of an int for the offset allowing
devices with a larger memory map than (1<<32) to be supported
on the alpha (/dev/mem is one such).
These changes are required to allow the X server to mmap the various
I/O regions used for device port and memory access on the alpha.
bug sound was not played if the total amount of data written to
the device was less than one blocksize
Noticed by: NABETANI Masaki and FreeBSD-users-jp
DEB macro). There are probably quite a few other messages that warrant
a similar treatment, and many more that should be converted to plain
log messages (e.g. "WARNING: wrintr but write DMA inactive!"). Now
that I think of it, same goes for the CAM code (e.g. the famed "tagged
openings" message)
add support for Vibra16X, OPTi925, and bring in several assorted
fixes to the code and documentation.
Also present here are apm hooks so that laptops can properly
reconfigure the hardware after suspend (tested on the Libretto50).
Reviewed by: jordan
These asm statments are not quite as pessimal as when I complained
about them in rev.1.9 of audio.c. They seem to be only 40% slower
than the C version on P5's and the same speed on K6's.
signals delivered to a process writing to the audio device the
system: if you try
cat /dev/zero > /dev/dsp (or cat /dev/zero > /dev/pcaudio)
and press Ctrl-C : for a second or two the system appears to freeze
(e.g. the cursor will disappear if you move the mouse, xclock
blocks, etc.). I think that interrupts etc. still run so the problem
is not too terrible, but still annoying
[ The problems appears to also be in isa/pcaudio.c, though that is ignored ]
Submitted by: Luigi Rizzo <luigi@labinfo.iet.unipi.it>
select/poll and DEVFS changes, which are limited to an include/define
in sound.h and the actual select/poll implementation in sound.c
[ This commit is blind, but the code is similar enough that there will
hopefully be no problems. ]
