TAB/space/indent cleanup.

x68k/stand: Merge {sd,cd}strategy and {sd,cd}close respectively.
For sd and cd devs, only open differs and the rest is the same.
No functional changes intended.
Suggested by tsutsui@ at port-x68k.

x68k/stand: Correct blocksize in case of CD.
- Fix calculation of the blocksize passes to SCSI IOCS.
- Use three kind of sector size (blocksize) properly; media's sector size,
DEV_BSIZE from xxstrategy, and Human68k's sector size.
By this change,
- For 512 bytes/sector HDD, no changes are intended.
- For CD, corrects the blocksize (%d5) passes to SCSI IOCS.
It has worked previously though the blocksize was incorrect. Now it
works with correct blocksize.
- As a secondary effect, 256 or 1024 bytes/sector media may work but not
well tested.
Reviewed by tsutsui@ at port-x68k.

x68k/stand: Correct a condition expression.
- start is LBA but dblk is relative from this partition.
- The first term was wrong. It should be '(x & 0x1fffff) == x', but
it's more simple to use numerical comparison.
There would have been no impact.

Specify default SCSI inquiry size (36 bytes) on IOCS_S_INQUIRY() command.

X680x0 SCSI IOCS stalls if SCSI device doesn't return inquiry data
of specified allocation length size on the INQUIRY command,
and it causes hangup on the XM6 based emulators that return only
upto 36 byte inquiry data on SCSI disk emulation.

Many real SCSI-2 hard drives seem to support >100 byte inquiry data,
but at least there is a harddisk that returns only supported inquiry
data size and quits transfer.

The bootloader checks only the device type and there is no reason
to read 100 bytes that includes vender specific data.

Analyzed and reported by GIMONS, a developer of XM6 TypeG emulator,
which also can run NetBSD/x68k.

branches: 1.14.2;
Make sure to initialize partition offset in cdopen(),
i.e. fix an uninitialized auto variable which happened
to be zero on XM6i emulator.

Now cdboot also works on real X68030.

branches: 1.13.2;
Fix CD support (again!).

Fix CD support.

branches: 1.11.2; 1.11.6; 1.11.8;
Retire varargs.h support. Move machine/stdarg.h logic into MI
sys/stdarg.h and expect compiler to provide proper builtins, defaulting
to the GCC interface. lint still has a special fallback.
Reduce abuse of _BSD_VA_LIST_ by defining __va_list by default and
derive va_list as required by standards.

don't assign sc->sc_partinfo.size to itself.

Some KNF. No binary change.

branches: 1.8.40; 1.8.46;
Use the same prototypes as libx68k.h.

Style fix.

branches: 1.6.28; 1.6.46; 1.6.48; 1.6.52; 1.6.54;
free -> dealloc
unsigned -> size_t for alloc/dealloc

branches: 1.5.2; 1.5.34; 1.5.46;
alloca() is now defined in libkern.h.

branches: 1.4.4;
Prepare to set WARNS=2.

set current_id properly.

Implement ls command.
Correct bootdev detection.
Other minor changes.

libsa for the new bootloader of x68k port.

x68k/stand: Merge {sd,cd}strategy and {sd,cd}close respectively.
For sd and cd devs, only open differs and the rest is the same.
No functional changes intended.
Suggested by tsutsui@ at port-x68k.

x68k/stand: Correct blocksize in case of CD.
- Fix calculation of the blocksize passes to SCSI IOCS.
- Use three kind of sector size (blocksize) properly; media's sector size,
DEV_BSIZE from xxstrategy, and Human68k's sector size.
By this change,
- For 512 bytes/sector HDD, no changes are intended.
- For CD, corrects the blocksize (%d5) passes to SCSI IOCS.
It has worked previously though the blocksize was incorrect. Now it
works with correct blocksize.
- As a secondary effect, 256 or 1024 bytes/sector media may work but not
well tested.
Reviewed by tsutsui@ at port-x68k.

x68k/stand: Correct a condition expression.
- start is LBA but dblk is relative from this partition.
- The first term was wrong. It should be '(x & 0x1fffff) == x', but
it's more simple to use numerical comparison.
There would have been no impact.

Specify default SCSI inquiry size (36 bytes) on IOCS_S_INQUIRY() command.

X680x0 SCSI IOCS stalls if SCSI device doesn't return inquiry data
of specified allocation length size on the INQUIRY command,
and it causes hangup on the XM6 based emulators that return only
upto 36 byte inquiry data on SCSI disk emulation.

Many real SCSI-2 hard drives seem to support >100 byte inquiry data,
but at least there is a harddisk that returns only supported inquiry
data size and quits transfer.

The bootloader checks only the device type and there is no reason
to read 100 bytes that includes vender specific data.

Analyzed and reported by GIMONS, a developer of XM6 TypeG emulator,
which also can run NetBSD/x68k.

branches: 1.14.2;
Make sure to initialize partition offset in cdopen(),
i.e. fix an uninitialized auto variable which happened
to be zero on XM6i emulator.

Now cdboot also works on real X68030.

branches: 1.13.2;
Fix CD support (again!).

Fix CD support.

branches: 1.11.2; 1.11.6; 1.11.8;
Retire varargs.h support. Move machine/stdarg.h logic into MI
sys/stdarg.h and expect compiler to provide proper builtins, defaulting
to the GCC interface. lint still has a special fallback.
Reduce abuse of _BSD_VA_LIST_ by defining __va_list by default and
derive va_list as required by standards.

don't assign sc->sc_partinfo.size to itself.

Some KNF. No binary change.

branches: 1.8.40; 1.8.46;
Use the same prototypes as libx68k.h.

Style fix.

branches: 1.6.28; 1.6.46; 1.6.48; 1.6.52; 1.6.54;
free -> dealloc
unsigned -> size_t for alloc/dealloc

branches: 1.5.2; 1.5.34; 1.5.46;
alloca() is now defined in libkern.h.

branches: 1.4.4;
Prepare to set WARNS=2.

set current_id properly.

Implement ls command.
Correct bootdev detection.
Other minor changes.

libsa for the new bootloader of x68k port.