Module Name: src
Committed By: tsutsui
Date: Fri Jun 10 21:42:24 UTC 2022
Modified Files:
src/sys/arch/luna68k/conf: GENERIC INSTALL files.luna68k majors.luna68k
src/sys/arch/luna68k/dev: xp.c
src/sys/arch/luna68k/luna68k: locore.s mainbus.c
Added Files:
src/sys/arch/luna68k/dev: psgpam.c psgpam_enc.c psgpam_enc.h
psgpam_table.c psgpam_table.h xpbus.c xpbusvar.h xpcmd.c xpcmd.h
xplxfirm.c xplxfirm.h
src/sys/arch/luna68k/dev/xplx: Makefile cdump.awk mkdefs.awk xplx.asm
xplx.inc xplxdefs.h
Log Message:
luna68k: add psgpam(4) audio for LUNA, using YM2149 PSG/SSG sound chip.
"PSG PAM" is a audio driver using "Pulse Amplitude Modulation" with the
YM2149 PSG/SSG chip connected to the I/O processor HD647180X on LUNA.
The driver plays up to 30 kHz PCM audio by manipulating PSG channel volumes
at extremely high speed with 6.144 MHz HD647180X, a Z80 compatible sub CPU.
https://www.youtube.com/watch?v=fR7PqaLpijQ
https://www.youtube.com/watch?v=kCDZCgkwgBA
Compatibilities with the existing XPIOCDOWNLD ioctl(2) to download and
exec user programs (PSG sound driver player ported from PC-6001 etc.)
on the HD647180X is still provided.
https://twitter.com/tsutsuii/status/1533247362965315584
This psgpam(4) driver for NetBSD/luna68k was written by @moveccr
during isaki-audio2 branch developments, and it was also demonstrated
at Open Source Conference 2018 Kyoto:
https://github.com/isaki68k/netbsd-src/tree/audio2
https://mail-index.netbsd.org/netbsd-advocacy/2018/08/07/msg000781.html
https://twitter.com/tsutsuii/status/1025504875625365505
Note specifications of interrupts from the HD647180X to the host LUNA
was confirmed by Kenji Aoyama on his LUNA-88K2 running OpenBSD/luna88k.
I would like to thank all people still working on ancient LUNA machines!
To generate a diff of this commit:
cvs rdiff -u -r1.132 -r1.133 src/sys/arch/luna68k/conf/GENERIC
cvs rdiff -u -r1.33 -r1.34 src/sys/arch/luna68k/conf/INSTALL
cvs rdiff -u -r1.29 -r1.30 src/sys/arch/luna68k/conf/files.luna68k
cvs rdiff -u -r1.24 -r1.25 src/sys/arch/luna68k/conf/majors.luna68k
cvs rdiff -u -r0 -r1.1 src/sys/arch/luna68k/dev/psgpam.c \
src/sys/arch/luna68k/dev/psgpam_enc.c \
src/sys/arch/luna68k/dev/psgpam_enc.h \
src/sys/arch/luna68k/dev/psgpam_table.c \
src/sys/arch/luna68k/dev/psgpam_table.h src/sys/arch/luna68k/dev/xpbus.c \
src/sys/arch/luna68k/dev/xpbusvar.h src/sys/arch/luna68k/dev/xpcmd.c \
src/sys/arch/luna68k/dev/xpcmd.h src/sys/arch/luna68k/dev/xplxfirm.c \
src/sys/arch/luna68k/dev/xplxfirm.h
cvs rdiff -u -r1.6 -r1.7 src/sys/arch/luna68k/dev/xp.c
cvs rdiff -u -r0 -r1.1 src/sys/arch/luna68k/dev/xplx/Makefile \
src/sys/arch/luna68k/dev/xplx/cdump.awk \
src/sys/arch/luna68k/dev/xplx/mkdefs.awk \
src/sys/arch/luna68k/dev/xplx/xplx.asm \
src/sys/arch/luna68k/dev/xplx/xplx.inc \
src/sys/arch/luna68k/dev/xplx/xplxdefs.h
cvs rdiff -u -r1.67 -r1.68 src/sys/arch/luna68k/luna68k/locore.s
cvs rdiff -u -r1.17 -r1.18 src/sys/arch/luna68k/luna68k/mainbus.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
