diff options
Diffstat (limited to 'sys/i386/isa/sound/midi.c')
| -rw-r--r-- | sys/i386/isa/sound/midi.c | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/sys/i386/isa/sound/midi.c b/sys/i386/isa/sound/midi.c new file mode 100644 index 0000000..a11a4df --- /dev/null +++ b/sys/i386/isa/sound/midi.c @@ -0,0 +1,205 @@ +/* + * Copyright by UWM - comments to soft-eng@cs.uwm.edu + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $Id$ + */ +#define _MIDI_TABLE_C_ +#include "sound_config.h" + +#ifdef CONFIGURE_SOUNDCARD + +#ifndef EXCLUDE_CHIP_MIDI + + +static int generic_midi_busy[MAX_MIDI_DEV]; + +long +CMIDI_init (long mem_start) +{ + + int i; + int n = num_midi_drivers; + + /* + * int n = sizeof (midi_supported) / sizeof( struct generic_midi_info ); + */ + for (i = 0; i < n; i++) + { + if (midi_supported[i].attach (mem_start)) + { + printk ("MIDI: Successfully attached %s\n", midi_supported[i].name); + } + + } + return (mem_start); +} + + +int +CMIDI_open (int dev, struct fileinfo *file) +{ + + int mode, err, retval; + + dev = dev >> 4; + + mode = file->mode & O_ACCMODE; + + + if (generic_midi_busy[dev]) + return (RET_ERROR (EBUSY)); + + + if (dev >= num_generic_midis) + { + printk (" MIDI device %d not installed.\n", dev); + return (ENXIO); + } + + if (!generic_midi_devs[dev]) + { + printk (" MIDI device %d not initialized\n", dev); + return (ENXIO); + } + + /* If all good and healthy, go ahead and issue call! */ + + + retval = generic_midi_devs[dev]->open (dev, mode); + + /* If everything ok, set device as busy */ + + if (retval >= 0) + generic_midi_busy[dev] = 1; + + return (retval); + +} + +int +CMIDI_write (int dev, struct fileinfo *file, snd_rw_buf * buf, int count) +{ + + int retval; + + dev = dev >> 4; + + if (dev >= num_generic_midis) + { + printk (" MIDI device %d not installed.\n", dev); + return (ENXIO); + } + + /* + * Make double sure of healthiness -- doubt Need we check this again?? + * + */ + + if (!generic_midi_devs[dev]) + { + printk (" MIDI device %d not initialized\n", dev); + return (ENXIO); + } + + /* If all good and healthy, go ahead and issue call! */ + + + retval = generic_midi_devs[dev]->write (dev, buf); + + return (retval); + +} + +int +CMIDI_read (int dev, struct fileinfo *file, snd_rw_buf * buf, int count) +{ + int retval; + + dev = dev >> 4; + + if (dev >= num_generic_midis) + { + printk (" MIDI device %d not installed.\n", dev); + return (ENXIO); + } + + /* + * Make double sure of healthiness -- doubt Need we check this again?? + * + */ + + if (!generic_midi_devs[dev]) + { + printk (" MIDI device %d not initialized\n", dev); + return (ENXIO); + } + + /* If all good and healthy, go ahead and issue call! */ + + + retval = generic_midi_devs[dev]->read (dev, buf); + + return (retval); + +} + +int +CMIDI_close (int dev, struct fileinfo *file) +{ + + int retval; + + dev = dev >> 4; + + if (dev >= num_generic_midis) + { + printk (" MIDI device %d not installed.\n", dev); + return (ENXIO); + } + + /* + * Make double sure of healthiness -- doubt Need we check this again?? + * + */ + + if (!generic_midi_devs[dev]) + { + printk (" MIDI device %d not initialized\n", dev); + return (ENXIO); + } + + /* If all good and healthy, go ahead and issue call! */ + + + generic_midi_devs[dev]->close (dev); + + generic_midi_busy[dev] = 0; /* Free the device */ + + return (0); + +} + +#endif + +#endif |
