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/* $OpenBSD: mpuvar.h,v 1.7 2022/03/21 19:22:40 miod Exp $ */
/* $NetBSD: mpu401var.h,v 1.3 1998/11/25 22:17:06 augustss Exp $ */
/*
* Copyright (c) 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Lennart Augustsson (augustss@netbsd.org).
*
* 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
struct mpu_softc {
bus_space_tag_t iot; /* tag */
bus_space_handle_t ioh; /* handle */
int iobase;
int open;
void (*intr)(void *, int); /* midi input intr handler */
void *arg; /* arg for intr() */
};
extern const struct midi_hw_if mpu_midi_hw_if;
int mpu_intr(void *);
int mpu_find(void *);
int mpu_open(void *, int,
void (*iintr)(void *, int),
void (*ointr)(void *), void *arg);
void mpu_close(void *);
int mpu_output(void *, int);
void mpu_getinfo(void *addr, struct midi_info *mi);
#define MPU401_NPORT 2
#define MPU_DATA 0
#define MPU_COMMAND 1
#define MPU_RESET 0xff
#define MPU_UART_MODE 0x3f
#define MPU_ACK 0xfe
#define MPU_STATUS 1
#define MPU_OUTPUT_BUSY 0x40
#define MPU_INPUT_EMPTY 0x80
#define MPU_MAXWAIT 10000 /* usec/10 to wait */
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