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      1 /*	$NetBSD: midi_seq_mod.c,v 1.2 2022/06/04 20:12:10 pgoyette Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1998, 2008 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Lennart Augustsson (augustss (at) NetBSD.org), (MIDI FST and Active
      9  * Sense handling) Chapman Flack (chap (at) NetBSD.org), and Andrew Doran.
     10  *
     11  * Redistribution and use in source and binary forms, with or without
     12  * modification, are permitted provided that the following conditions
     13  * are met:
     14  * 1. Redistributions of source code must retain the above copyright
     15  *    notice, this list of conditions and the following disclaimer.
     16  * 2. Redistributions in binary form must reproduce the above copyright
     17  *    notice, this list of conditions and the following disclaimer in the
     18  *    documentation and/or other materials provided with the distribution.
     19  *
     20  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     21  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     22  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     23  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     24  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     30  * POSSIBILITY OF SUCH DAMAGE.
     31  */
     32 
     33 #include <sys/cdefs.h>
     34 __KERNEL_RCSID(0, "$NetBSD: midi_seq_mod.c,v 1.2 2022/06/04 20:12:10 pgoyette Exp $");
     35 
     36 #ifdef _KERNEL_OPT
     37 #include "midi.h"
     38 #endif
     39 
     40 #include <sys/param.h>
     41 #include <sys/ioctl.h>
     42 #include <sys/fcntl.h>
     43 #include <sys/vnode.h>
     44 #include <sys/select.h>
     45 #include <sys/poll.h>
     46 #include <sys/proc.h>
     47 #include <sys/systm.h>
     48 #include <sys/callout.h>
     49 #include <sys/syslog.h>
     50 #include <sys/kernel.h>
     51 #include <sys/signalvar.h>
     52 #include <sys/conf.h>
     53 #include <sys/audioio.h>
     54 #include <sys/midiio.h>
     55 #include <sys/device.h>
     56 #include <sys/intr.h>
     57 #include <sys/module.h>
     58 
     59 #include <dev/audio/audio_if.h>
     60 #include <dev/midi_if.h>
     61 #include <dev/midivar.h>
     62 
     63 #include "ioconf.h"
     64 
     65 extern struct cfdriver sequencer_cd;
     66 extern struct cdevsw midi_cdevsw;
     67 extern struct cdevsw sequencer_cdevsw;
     68 
     69 #ifdef _MODULE
     70 #include "ioconf.c"
     71 
     72 CFDRIVER_DECL(sequencer, DV_DULL, NULL);
     73 
     74 devmajor_t midi_bmajor = -1, midi_cmajor = -1;
     75 devmajor_t sequencer_bmajor = -1, sequencer_cmajor = -1;
     76 #endif
     77 
     78 MODULE(MODULE_CLASS_DRIVER, midi_seq, "audio");
     79 
     80 static int
     81 midi_seq_modcmd(modcmd_t cmd, void *arg)
     82 {
     83 	int error = 0;
     84 
     85 #ifdef _MODULE
     86 	switch (cmd) {
     87 	case MODULE_CMD_INIT:
     88 #if NMIDI > 0
     89 		error = devsw_attach(midi_cd.cd_name, NULL, &midi_bmajor,
     90 		    &midi_cdevsw, &midi_cmajor);
     91 		if (error)
     92 			break;
     93 #endif
     94 
     95 #if NSEQUENCER > 0
     96 		error = devsw_attach(sequencer_cd.cd_name,
     97 		    NULL, &sequencer_bmajor,
     98 		    &sequencer_cdevsw, &sequencer_cmajor);
     99 		if (error) {
    100 #if NMIDI > 0
    101 			devsw_detach(NULL, &midi_cdevsw);
    102 #endif
    103 			break;
    104 		}
    105 #endif
    106 
    107 #if NMIDI > 0
    108 		error = config_init_component(cfdriver_ioconf_midi_seq,
    109 		    cfattach_ioconf_midi_seq, cfdata_ioconf_midi_seq);
    110 		if (error) {
    111 #if NSEQUENCER > 0
    112 			devsw_detach(NULL, &sequencer_cdevsw);
    113 #endif
    114 			devsw_detach(NULL, &midi_cdevsw);
    115 #endif
    116 		}
    117 		break;
    118 	case MODULE_CMD_FINI:
    119 #if NMIDI > 0
    120 		error = config_fini_component(cfdriver_ioconf_midi_seq,
    121 		   cfattach_ioconf_midi_seq, cfdata_ioconf_midi_seq);
    122 		if (error == 0) {
    123 #endif
    124 #if NSEQUENCER > 0
    125 			devsw_detach(NULL, &sequencer_cdevsw);
    126 #endif
    127 #if NMIDI > 0
    128 			devsw_detach(NULL, &midi_cdevsw);
    129 #endif
    130 		}
    131 		break;
    132 	default:
    133 		error = ENOTTY;
    134 		break;
    135 	}
    136 #endif
    137 
    138 	return error;
    139 }
    140