instead of bp->b_bcount. The I/O operation may have changed bp->b_bcount,
and not all of the kernel virtual memory will be freed. This will result
in the VM system putting pages back on the free list which are still
mapped. This may cause a deadlock later trying to enter pages into
the kernel pmap. [See PR#4120 for more details.]
* support chip clocks != COM_FREQ, by introducing sc_frequency (for the
mainline code) and adding a frequency parameter right after the rate
parameter to comcnattach() and com_kgdb_attach().
- Make com_isa and com_multi initialize sc_frequency to COM_FREQ.
- Make i386/machdep.c and alpha/dec_xxx.c call com*attach() with the freq.
parameter.
* supio_attach_args get two more fields: a sc_ipl and a sc_arg, both ints.
- com_supio uses the first for interupt establishment (all childs will, as
soon as they exist) and the 2nd for sc_frequency.
- drsupio passes sc_ipl alway as 5, and for the "com"s, sc_arg as 16*115200
- hyper will pass sc_ipl as 6, and sc_arg as 16 * 460800
without an 'a' partition. We open the RAW_PART partition instead.
Without this, a boot partition on the 'b' or later partition of such a disk
won't be found.
is for "standard PC i/o stuff" at known and constant locations, e.g. when
multi-io chips are used on non-ISA mainboards.
Implement drsupio.c, the DraCo version of this.
Attach the generic com.c to this bus.
Remove the old drcom hack.
Currently, this is only kind of a wrapper around the *_sicallback() function
family. This way, we'll only break the new driver if it doesn't work.
After more drivers are converted, we'll change it to be the other way round.
(currently only CD-ROM drives on i386). The sys/dev/scsipi system provides 2
busses to which devices can attach (scsibus and atapibus). This needed to
change some include files and structure names in the low level scsi drivers.
at the same time instead by using two different calls. This enables
it to check more easily if the combined mode is all right.
- Improve the error checking in audio.c.
- Add a new audio property, AUDIO_PROP_INDEPENDENT, show if the
play and record settings are independent.
- Fix some buglets in audio.c.
- Change the way attach and open works to allow multiple audio
devices.
- Split the mulaw.c file into two to avoid dragging in mulaw
convertsion when they are not needed. Add 16 bit alaw/mulaw tables.
- Change the way audio properties are gotten.
- Recognize more versions os SoundBlaster.
- Add grfvideo_mode->disp_flags to select interlace, doublescan,
sync-on-green and horizontal/vertical sync polarity.
- Add some constants for grfvideo_mode->disp_flags.
This fixes a wrong output from grfconfig /dev/grf[23]
- changes for the grfconfig interface:
- Remove gv->hblank_stop and gv->vblank_stop.
- Only print doublescan and interlace flags. Horizontal/vertical sync
polarities are not yet supported and sync-on-green will never be
supported.
- Remove gv->{hblank_stop,vblank_stop} and use the other grfvideo_mode
values to set ba->data.
- Add gv->disp_flags to select interlace.
- Not yet supported are: doublescan, sync-on-green and the horizontal/vertical
sync polarity.
This makes it possible to use xfree values for grfconfig.
- changes for the grfconfig interface:
- Remove gv->{hblank_stop,vblank_stop} and calculate HBE and VBE from
gv->{htotal,vtotal}.
- Add support for gv->disp_flags to select interlace, doublescan and
horizontal/vertical sync polarity.
- Return EINVAL for gv->disp_flags and sync-on-green.
This makes it possible to use xfree values for grfconfig.
- Use interrrupt #6 instead of #2. #6 is the default interrupt and there
seems to be a problem with Cyberstorm 060 and #2.
- Set the interrupt register before enabling the interrupt.
- GC M2INS
- minor cleanup
- Switch from +hsync/+vsync to -hsync/-vsync.
- changes for the grfconfig interface:
- Remove gv->{hblank_stop,vblank_stop} and calculate HBE and VBE from
gv->{htotal,vtotal}.
- Add support for gv->disp_flags to select interlace, doublescan and
horizontal/vertical sync polarity.
- Return EINVAL for gv->disp_flags and sync-on-green.
This makes it possible to use xfree values for grfconfig.
XXX This (the m68k FPE, not the glue code) is known to be broken for
68LC040/68040V and 68LC060 cpus. This is also the reason we don't
bother to add options FPU_EMULATE to the DRACO configuration file, as
DraCos only come in 68040V (very few) and 68060 variants.
XXX This (the m68k FPE, not the glue code) is known to be broken for
68LC040/68040V and 68LC060 cpus. This is also the reason we don't
bother to add options FPU_EMULATE to the DRACO configuration file, as
DraCos only come in 68040V (very few) and 68060 variants.
renamed AUDIO_ENCODING_SLINEAR and AUDIO_ENCODING_LINEAR reverts to the
NetBSD 1.2 sematics. A kernel with COMPAT_12 defined will accept
AUDIO_ENCODING_LINEAR and treat it as before, without COMPAT_12 it
will be rejected.
Correct handling for Trap #2 in SunOS executables,
now that we know it is supposed to flush the cache.
(Was thought to be "some obscure FPU operation".)
an 68060/68LC060, possibly switching on the 68060 FPU, instead of trusting
the value passed from the ROM OS to us by the bootblock.
Most 68060 boards, unlike the DraCo (which seems to have heavily patched OS
ROMs) don't set the AMIGA_68060 flag; instead, upon detecting an 68060, its
FPU is disabled to make the ROM scheduler work, and at a much later time (at
least, later than bootblock booting time), the "68060.library" installs the
Motorola 68060 software support, patches the scheduler for the 68060 FPU, and
re-enables the FPU.
Maybe this will be fixed one day, if Amiga International sells upgraded OS
ROMs which know about the 68060. Until then, and for legacy machines, this
kludge is needed if we want to boot a non-DraCo 68060.
Btw, thats why this is NOT in std.amiga, but in GENERIC; the DRACO
configuration doesn't need it (and I still plan to make std.draco go away).
or swap partitions. Booting from a miniroot on the swap partition will
detect the miniroot as the boot partition (if the bootblock loader passes
the boot partition offset to the kernel).
(thesing@cs.uni-sb.de), heavily hacked upon by me to
- make it work with -current audio system
- make it shut off Amiga audio DMA only at appropriate places.
XXX A couple of bugs still remain, which well be handled later.
XXX Among them: only mono output; doesn't refuse to handle input, but chokes;
will not play last millichunk (is this 20 ms?) of data.
kernels, at the same time getting rid of up to 3 conditional branches and a
bit over one cacheline fetch (for the 68060; the saving is a bit smaller for
040 and yet smaller for the 020/30).
While we're here, also get rid of an redundant lea (using SP-relative
addressing) and of two redundant pushes.
While we're here, also fix a panic which would tear us down on 68060 machines
if a branch prediction error ever occured.
>Signed shifts are evil.
>Thanks to Michael Smith for reporting, Jason Thorpe for pointing to the
>report, doing a quick workaround which pointed me to the right code part and
>for testing the final fix.
Some of the stuff (e.g., rarpd, bootpd, dhcpd etc., libsa) still will
only support Ethernet. Tcpdump itself should be ok, but libpcap needs
lot of work.
For the detailed change history, look at the commit log entries for
the is-newarp branch.
- Fixes for Interlace and DoubleScan
- Memorysizedetction for 1MB Bords
- Clockdoubling for PicassoIV and PiccoloSD64
NOTE: Don't use the X11R6.1 Xserver with -useHWC on the SD64
with a gfxmode >80Mhz or you get a broken mousepointer.
- HiColor and TrueColor Support
(doesn't work yet, since it needs some fixes for the XServer)
pass the block number of the boot partition to the kernel. The kernel
will use the block number to determine which disk device the kernel was
booted from and set the boot device based on that instead of the old
"generic" method.
- move the helper programs txlt and aout2bb to the topmost directory
- build the few files from libsa in the topmost directory
* while doing this, hunted down mysterious code expansion: It seems
that ld aligns code segments differently when linking .o's directly
than when using an archive consisting of the same files. Abuse this
effect to make the bootblock even smaller. The floppy boot block
"fdboot" is now small enough to build; add it back to the Makefile.
* while being here, remove a file which was committed by mistake.
Eliminate obsolete global kernel variable "struct timezone tz"
Add RTC_OFFSET option
Add global kernel variable rtc_offset, which is initialized by
RTC_OFFSET at kernel compile time.
on i386, x68k, mac68k, pc532 and arm32, RTC_OFFSET indicates how many
minutes west (east) of GMT the hardware RTC runs. Defaults to 0.
Places where tz variable was used to indicate this in the past have
been replaced with rtc_offset.
Add sysctl interface to rtc_offset.
Kill obsolete DST_* macros in sys/time.h
gettimeofday now always returns zeroed timezone if zone is requested.
settimeofday now ignores and logs attempts to set non-existant kernel
timezone.
For some reason it wouldn't get positioned right when mapped in through the
blitter memory mapped location, so switched to the register mapping, which
works.
XXX colormap handling for the cursor is still broken.
mhitch