by saving the last written FIOSVIDEO/GRFIOCBLANK value into a shadow variable
in the grf_softc and returning this value on FBIOGVIDEO.
The presence of this ioctl is needed by screenblank(8) nowadays.
Original problem reported by Lars Hecking on the port-amiga mailing list.
that is priority is rasied. Add a new spllowersoftclock() to provide the
atomic drop-to-softclock semantics that the old splsoftclock() provided,
and update calls accordingly.
This fixes a problem with using the "rnd" pseudo-device from within
interrupt context to extract random data (e.g. from within the softnet
interrupt) where doing so would incorrectly unblock interrupts (causing
all sorts of lossage).
XXX 4 platforms do not have priority-raising capability: newsmips, sparc,
XXX sparc64, and VAX. This platforms still have this bug until their
XXX spl*() functions are fixed.
mode. On this chip, we need to access some registers to set the text plane,
which messes up the graphics setup.
This should fix the grf3 problems reported by several people.
Michael Hitch and Joerg Lehners analyzed the problem and provided the fix.
bus. Without this, cbiiisc used to hang if nothing was connected.
Reported by Matthias Scheler. A similar method to avoid this was suggested
by Ralph Schmidt.
directly, call the function pointer (*if_input)(ifp, m). The input routine
expects the packet header to be at the head of the packet, and will adjust
as necessary. Privatize the layer 2 input and output routines, allowing
*_ifattach() to set them up as appropriate.
siop2.c. Add wide negotiation and Ultra support. Modify siop.c to match
the siop2.c sync negotiation changes. The CyberStorm MKIII driver now
supports 15 targets. Remove some old table-driven sync rate stuff from
the original Zeus driver.
when disconnecting etc., how much data were transferred, has changed.
Symptom: SIOP invalid instructions when doing data transfers to disks that
disconnect.
XXX The bits etc. need to be defined correctly in the siopreg.h file, and
symbolic values used.
By Bernardo Innocenti, submitted as PR 6787.
Some KNF-ifying done by myself, so you might want to blame me instead
if the original patch worked for you.
-is
struct scsipi_adapter; they were not used.
Add a scsipi_ioctl entry point to struct scsipi_adapter. This will be
used to issue ioctl commands to the host adapters.
Inspired by PR #6090, from Matt Jacob.
- machine independent chip driver, in dev/ic/smc90cx6.c/...reg.h,...var.h,
using bus_space methods
- ZBUS frontend in arch/amiga/dev/if_bah_zbus.c
- added IPL_SOFTNET to arch/amiga/include/intr.h, for this
Implementing the ISA bus frontend is left as an exercise to the reader.
* Improve the midisyn layer a little.
* Add a driver for the Yamaha OPL[23] FM synths.
The opl driver is not finished yet; it sounds pretty awful.
For some strange reason I cannot get any FM sound from my SB64 cards,
but a regular SB16 works fine.
tty structures, and on some machines (namely the DraCo internal lpt, and some
multi-i/o boards for Amigas and DraCos), tying spltty to the pretty high printer
interupt level would hurt serial performance.
On all affected ports but Amiga, spllpt() has been defined in machine/intr.h
to be spltty(), thus preserving old behaviour. Portmasters are encouraged to
change is, if they feel something else is better (e.g., one of its own were
possible).
register anyway when the bit is set, we can safe one of the (slow) custom
chip accesses by using this bit.
Sounds ridiculous, but at a hardware FIFO depth of 1 and ~1 usec per
access (at IPL 5) it might help the highspeed addicts.
it from the QuickLogic chip version byte.
If found, switch it to non-autorepeat mode (which seems to avoid the race
condition which made my keyboard driver / X server lose state under heavy
interupt load).
If not found, assume an Amiga keyboard on CIA-A.
XXX We should probe for the presence of the CIAs on the DraCo.
We play mono samples on all 4 channels.
However, we get the volume settings for mono samples as a symmetic two-channel
setting... the other two channels used to stay at max volume...
I believe that something else is wrong here, but dont want to change MI
code (which in turn influences a couple of MD driver) thus late in the release
cycle.
- use board address space > 4 MB, instead of iszthreepa(), to detect Z3-mode
boards. We dont want the bus, but want the address configuration.
- s/CV64CONSOLE/CV3DCONSOLE/
- s/cv3d_zorroIII == 1/cv3d_zorroIII/ and s/cv3d_zorroIII != 1/!cv3d_zorroIII/
the CyberVision64 driver. Modified by Tobias Abt with some bugfixes
from Bernd Ernesti.
ZorroII is at the moment not supported and there is a small problem
with the Console driver where you just get a black screen, but the
system boots and you can use X11 without a problem.
The changes is to allow some limited mixer manipulation through
the audio device (instead of the mixer device).
This rendered 4 methods in audio_hw_if unused so garbage collect these.
This will be used by certain SCSI drivers to limit the length of DMA transfers
when the serial port is running at higher speeds. GVP and Phase5 DMA
interfers significantly with CPU execution, and significantly increases
receive buffer overruns (silo overflow). Reducing the DMA transfer length
can reduce the overruns.
NOTE: due to hardware requirement of the AGA chipset, the framebuffer width
has to be a multiple of 64 bits. An 800x600 display will use a memory width
of 832 bits, which the current X server can't handle. To get a usable
display, the width needs to be 832 or 768.
* 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
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 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.
is