1 /* $NetBSD: midivar.h,v 1.8 2001/01/13 16:09:04 tshiozak Exp $ */ 2 3 /* 4 * Copyright (c) 1998 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@netbsd.org). 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #ifndef _SYS_DEV_MIDIVAR_H_ 40 #define _SYS_DEV_MIDIVAR_H_ 41 42 #define MIDI_BUFSIZE 1024 43 44 #include "sequencer.h" 45 46 #include <sys/callout.h> 47 48 struct midi_buffer { 49 u_char *inp; 50 u_char *outp; 51 u_char *end; 52 int used; 53 int usedhigh; 54 u_char start[MIDI_BUFSIZE]; 55 }; 56 57 #define MIDI_MAX_WRITE 32 /* max bytes written with busy wait */ 58 #define MIDI_WAIT 10000 /* microseconds to wait after busy wait */ 59 60 struct midi_softc { 61 struct device dev; 62 void *hw_hdl; /* Hardware driver handle */ 63 struct midi_hw_if *hw_if; /* Hardware interface */ 64 struct device *sc_dev; /* Hardware device struct */ 65 int isopen; /* Open indicator */ 66 int flags; /* Open flags */ 67 int dying; 68 struct midi_buffer outbuf; 69 struct midi_buffer inbuf; 70 int props; 71 int rchan, wchan; 72 int pbus; 73 struct selinfo wsel; /* write selector */ 74 struct selinfo rsel; /* read selector */ 75 struct proc *async; /* process who wants audio SIGIO */ 76 77 struct callout sc_callout; 78 79 /* MIDI input state machine */ 80 int in_state; 81 #define MIDI_IN_START 0 82 #define MIDI_IN_DATA 1 83 #define MIDI_IN_SYSEX 2 84 u_char in_msg[3]; 85 u_char in_status; 86 u_int in_left; 87 u_int in_pos; 88 89 #if NSEQUENCER > 0 90 /* Synthesizer emulation stuff */ 91 int seqopen; 92 struct midi_dev *seq_md; /* structure that links us with the seq. */ 93 #endif 94 }; 95 96 #define MIDIUNIT(d) ((d) & 0xff) 97 98 #endif /* _SYS_DEV_MIDIVAR_H_ */ 99