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