Raw MIDI input/output is not working in ALSA 0.9.0rc3 on a Soundblaster AWE64 Gold ISA and external MIDI instruments. Everything else works fine including MIDI file playback on the synth. Playback on external MIDI gives total silence. For comparison, raw MIDI input works perfectly on the very same hardware on OSS/Linux 2.0.x [MIDI output was never implemented in OSS/2.0.x]. In detail:
1) Every MIDI file recording from external MIDI instruments contains invalid time values in each MIDI event, meaning the file can't be played back. The recorded MIDI files do contain note-on and note-off events but the files are useless without correct time values. An example invalid MIDI files is in the attachment. The recording was made in the Rosegarden sequencer (it works ok on OSS/Linux 2.0.x) Is anyone working on a patch for rawmidi.c? 2) Valid MIDI files won't playback to external MIDI instruments -- there is no sound output. 3) make install didn't install the ALSA headers /usr/include/alsa/* like it did with old ALSA betas. Is this new behaviour correct? How do you get a complete set of ALSA headers installed automatically? rm -rf existing headers doesn't trigger a re-install. 4) BTW, is anyone working on MIDI RESET for ALSA 1.0.0? alsa-kernel/core/rawmidi.c says MIDI reset is in the TODO stage. I have instruments that sometimes need MIDI reset. OSS/Linux 2.0.x had a handy seq_reset() in drivers/sound/sequencer.c which mostly worked well. Thanks, Will -------------------------------
recording.mid
Description: MIDI audio
I want to make external MIDI instruments work with ALSA. I don't mean just being able to play MIDI files on the soundcard using soundfont samples. I want to play external MIDI instruments and have the PC be able to record the MIDI events into a MIDI file. I also want the PC to be able to play MIDI files on an external MIDI keyboard. Is anyone else successfully using ALSA to record the playing of MIDI instruments or playing MIDI files on external MIDI instruments? I'm using an ISA SoundBlaster AWE64 Gold card and ALSA sound driver 0.9.0rc2 as well as a patched ALSA using Clemens Ladisch' patch to rawmidi.c ALSA compiles fine with 2.4.x kernels/devfsd and apparently installs fine (lsmod output in attachment). The ALSA config looks fine (see attachments) apart from what might be one odd feature (see below after next paragraph). I'm using the excellent Rosegarden MIDI software v2.1 (www.all-day-breakfast.com/rosegarden/) to read the MIDI events into a MIDI file and to create musical scores. Without Clemens' patch I don't get any MIDI sequencer input from the MIDI instruments. The recorded MIDI files are empty with no MIDI events. With Clemens' patch the recorded MIDI files are non-empty but have invalid time values making them unplayable. This is odd because MIDI input works perfectly when I play the same MIDI instruments connected to a PC with an old 2.0.x kernel, OSS and an old ISA SoundBlaster 16 (CreativeTech original). I get valid MIDI files as recordings. I want to do the same with ALSA. One difference in the OSS /dev/sndstat outputs (full outputs in attachments) is that "Card config:" is missing the MPU registration which you do get in OSS/Linux 2.0.x but maybe that's simply because ALSA uses /dev/sndstat differently -- in fact, the MPU401 port is in /proc/ioports (see attachment). ALSA/Linux 2.4.x: [...] Card config: Sound Blaster 16 at 0x220, irq 5, dma 1&5 >>>[ MPU is not mentioned here ] [...] Midi devices: 0: MPU-401 (UART) [...] OSS/Linux 2.0.x: [...] Card config: Sound Blaster at 0x220 irq 5 drq 1,5 >>>SB MPU-401 at 0x300 irq 5 OPL-2/OPL-3 FM at 0x388 drq 0 [...] Midi devices: 0: Sound Blaster 16 [...] lsmod output shows I've got the usual ALSA SnowStorm(R) of 10^2 loaded modules:-) including snd-mpu401-uart together with snd-seq-oss, snd-seq-device, snd-rawmidi, snd-seq-midi, snd-seq-virmidi, and snd-seq-midi-emul. BTW, what is the minimum correct modules.conf to use with ALSA? Is something wrong with my modules.conf? Any ideas? Thanks, Will
Sound Driver:3.8.1a-980706 (ALSA v0.9.0rc2 emulation code) Kernel: Linux alsatest 2.4.19 #5 Wed Aug 14 17:10:26 BST 2002 i686 Config options: 0 Installed drivers: Type 10: ALSA emulation Card config: Sound Blaster 16 at 0x220, irq 5, dma 1&5 Audio devices: 0: DSP v4.16 (DUPLEX) Synth devices: 0: OPL3 FM Midi devices: 0: MPU-401 (UART) Timers: 7: system timer Mixers: 0: mixer00
Sound Driver:3.5.4-960630 (Fri Dec 15 14:42:06 GMT 2000 will, Linux osstest 2.0.39 #6 Thu Dec 14 19:01:13 GMT 2000 i686) Kernel: Linux osstest 2.0.39 #8 Fri Dec 15 08:21:13 GMT 2000 i686 Config options: 0 Installed drivers: Type 1: OPL-2/OPL-3 FM Type 2: Sound Blaster Type 7: SB MPU-401 Card config: Sound Blaster at 0x220 irq 5 drq 1,5 SB MPU-401 at 0x300 irq 5 OPL-2/OPL-3 FM at 0x388 drq 0 Audio devices: 0: Sound Blaster 16 (4.13) Synth devices: 0: Yamaha OPL-3 Midi devices: 0: Sound Blaster 16 Timers: 0: System clock Mixers: 0: Sound Blaster
alias usb-controller usb-uhci # For ALSA sound drivers and a SoundBlaster 32/64 AWE only: alias sound snd-sbawe alias char-major-14 soundcore alias char-major-116 sound alias /dev/dsp sound alias /dev/music sound alias /dev/sound sound alias /dev/sequencer sound alias /dev/sndstat sound options snd-sbawe snd_isapnp=1 snd_awe_port=0x620 add above snd-sbawe snd-pcm-oss snd-mixer-oss snd-seq-oss alias snd-card-1 off alias snd-card-2 off alias snd-card-3 off alias snd-card-4 off alias snd-card-5 off alias snd-card-6 off alias snd-card-7 off # For ALSA sound drivers and an ordinary SoundBlaster 16 only: #alias sound sb #options sb io=0x220 irq=5 dma=1 dma16=5 mpu_io=0x300 #alias char-major-116 sb #alias /dev/dsp sb #alias /dev/music sb #alias /dev/sound sb #alias /dev/sequencer sb #alias /dev/sndstat sb #add above sb snd-pcm-oss snd-mixer-oss snd-seq-oss # For ALSA sound drivers and a SoundBlaster 32/64 AWE only: #post-install snd-mixer-oss /bin/sound-mixer-init # For OSS/Free sound drivers only: alias char-major-14 soundcore
Module Size Used by Tainted: P snd-seq-midi 3328 0 (autoclean) (unused) snd-emu8000-synth 8584 0 (autoclean) (unused) snd-pcm-oss 35684 0 (autoclean) (unused) snd-mixer-oss 9212 1 (autoclean) [snd-pcm-oss] snd-emux-synth 24060 0 (autoclean) [snd-emu8000-synth] snd-seq-virmidi 2584 0 (autoclean) [snd-emux-synth] snd-util-mem 1200 0 (autoclean) [snd-emu8000-synth snd-emux-synth] snd-seq-oss 22336 0 (autoclean) (unused) snd-seq-midi-event 2984 0 (autoclean) [snd-seq-midi snd-seq-virmidi snd-seq-oss] snd-opl3-synth 8836 0 (autoclean) (unused) snd-seq-instr 4304 0 (autoclean) [snd-opl3-synth] snd-seq-midi-emul 4320 0 (autoclean) [snd-emux-synth snd-opl3-synth] snd-seq 33936 2 (autoclean) [snd-seq-midi snd-emux-synth snd-seq-virmidi snd-seq-oss snd-seq-midi-event snd-opl3-synth snd-seq-instr snd-seq-midi-emul] snd-ainstr-fm 1396 0 (autoclean) [snd-opl3-synth] snd-sbawe 16128 1 (autoclean) [snd-emu8000-synth] snd-sb16-csp 15080 0 (autoclean) [snd-sbawe] isa-pnp 27908 0 (autoclean) [snd-sbawe] snd-opl3-lib 5092 0 (autoclean) [snd-opl3-synth snd-sbawe] snd-hwdep 3424 0 (autoclean) [snd-sb16-csp snd-opl3-lib] snd-sb16-dsp 5224 0 (autoclean) [snd-sbawe] snd-pcm 48128 0 (autoclean) [snd-emu8000-synth snd-pcm-oss snd-sb16-dsp] snd-timer 9576 0 (autoclean) [snd-seq snd-opl3-lib snd-pcm] snd-sb-common 5960 0 (autoclean) [snd-sbawe snd-sb16-csp snd-sb16-dsp] snd-mpu401-uart 2544 0 (autoclean) [snd-sbawe snd-sb16-dsp] snd-rawmidi 11968 0 (autoclean) [snd-seq-midi snd-seq-virmidi snd-mpu401-uart] snd-seq-device 3824 0 (autoclean) [snd-seq-midi snd-emu8000-synth snd-emux-synth snd-seq-oss snd-opl3-synth snd-seq snd-sbawe snd-opl3-lib snd-rawmidi] snd 24204 0 (autoclean) [snd-seq-midi snd-emu8000-synth snd-pcm-oss snd-mixer-oss snd-emux-synth snd-seq-virmidi snd-util-mem snd-seq-oss snd-seq-midi-event snd-opl3-synth snd-seq-instr snd-seq snd-sbawe snd-sb16-csp snd-opl3-lib snd-hwdep snd-sb16-dsp snd-pcm snd-timer snd-sb-common snd-mpu401-uart snd-rawmidi snd-seq-device]
# cat /proc/asound/cards
0 [card0 ]: SB AWE - Sound Blaster 16
Sound Blaster 16 at 0x220, irq 5, dma 1&5
# cat /proc/asound/devices
0: [0- 0]: ctl
4: [0- 0]: hardware dependent
8: [0- 0]: raw midi
16: [0- 0]: digital audio playback
24: [0- 0]: digital audio capture
1: : sequencer
9: [0- 1]: raw midi
10: [0- 2]: raw midi
17: [0- 1]: digital audio playback
33: : timer
# cat /proc/asound/oss/devices
10: [0-10]: hardware dependent
2: [0- 2]: raw midi
0: [0- 0]: mixer
1: : sequencer
8: : sequencer
13: [0-13]: raw midi
# cat /proc/bus/isapnp/devices
0100 CTL009eCTL0044
0102200330038800000000000000000000010100000105050000000000000000000000000000000000
0101 CTL009eCTL7002
0000000000000000000000000000000000000200000404040000000000000000000000000000000000
0102 CTL009eCTL0023
0106200a200e2000000000000000000000000200000404040000000000000000000000000000000000
# cat /proc/interrupts
CPU0
[...]
5: 1 XT-PIC SoundBlaster
[...]
NMI: 0
LOC: 4
ERR: 5
MIS: 0
# cat /proc/ioports
0000-001f : dma1
[...]
0080-008f : dma page reg
[...]
00c0-00df : dma2
[...]
0213-0213 : isapnp read
0220-022f : SoundBlaster
[...]
0330-0331 : MPU401 UART
[...]
0388-0389 : OPL2/3 (left)
038a-038b : OPL2/3 (right)
[...]
0620-0623 : Emu8000-1
0a20-0a23 : Emu8000-2
0a79-0a79 : isapnp write
0cf8-0cff : PCI conf1
0e20-0e23 : Emu8000-3
[...]
% cat /etc/devfsd.conf # Enable full compatibility mode for old device names. You may comment these # out if you don't use the old device names. Make sure you know what you're # doing! REGISTER .* MKOLDCOMPAT UNREGISTER .* RMOLDCOMPAT # You may comment these out if you don't use the original "new" names REGISTER .* MKNEWCOMPAT UNREGISTER .* RMNEWCOMPAT # Enable module autoloading. You may comment this out if you don't use # autoloading LOOKUP .* MODLOAD # # Uncomment this if you want the old /dev/cdrom symlink # (e.g. those specifying CD-ROM type, mouse port, modem port etc) # LOOKUP ^cdrom$ CFUNCTION GLOBAL symlink cdroms/cdrom0 $devpath REGISTER ^cdrom/cdrom0$ CFUNCTION GLOBAL symlink cdroms/cdrom0 cdrom UNREGISTER ^cdrom/cdrom0$ CFUNCTION GLOBAL unlink cdrom LOOKUP ^audio$ CFUNCTION GLOBAL symlink sound/audio $devpath REGISTER ^audio/audio$ CFUNCTION GLOBAL symlink sound/audio audio UNREGISTER ^audio/audio$ CFUNCTION GLOBAL unlink audio LOOKUP ^midi$ CFUNCTION GLOBAL symlink sound/midi00 $devpath REGISTER ^midi/midi00$ CFUNCTION GLOBAL symlink sound/midi00 midi UNREGISTER ^midi/midi00$ CFUNCTION GLOBAL unlink midi LOOKUP ^music$ CFUNCTION GLOBAL symlink sound/sequencer2 $devpath REGISTER ^music/sequencer2$ CFUNCTION GLOBAL symlink sound/sequencer2 music UNREGISTER ^music/sequencer2$ CFUNCTION GLOBAL unlink music LOOKUP ^sbdsp$ CFUNCTION GLOBAL symlink sound/dsp $devpath REGISTER ^sbdsp/dsp$ CFUNCTION GLOBAL symlink sound/dsp sbdsp UNREGISTER ^sbdsp/dsp$ CFUNCTION GLOBAL unlink sbdsp LOOKUP ^sndstat$ CFUNCTION GLOBAL symlink /proc/asound/sndstat $devpath REGISTER ^sndstat/proc/asound/sndstat$ CFUNCTION GLOBAL symlink /proc/asound/sndstat sndstat UNREGISTER ^sndstat/proc/asound/sndstat$ CFUNCTION GLOBAL unlink sndstat # Set the correct owner/group permissions on the sound driver device files: LOOKUP snd MODLOAD ACTION snd REGISTER sound/.* PERMISSIONS root.audio 660 REGISTER snd/.* PERMISSIONS root.audio 660
