diff options
Diffstat (limited to 'sys/dev/isa/isa.c')
| -rw-r--r-- | sys/dev/isa/isa.c | 75 |
1 files changed, 74 insertions, 1 deletions
diff --git a/sys/dev/isa/isa.c b/sys/dev/isa/isa.c index 3d7516f46d7..75b7ac34e9c 100644 --- a/sys/dev/isa/isa.c +++ b/sys/dev/isa/isa.c @@ -1,6 +1,38 @@ -/* $OpenBSD: isa.c,v 1.24 1997/12/25 12:06:47 downsj Exp $ */ +/* $OpenBSD: isa.c,v 1.25 1997/12/25 13:18:07 downsj Exp $ */ /* $NetBSD: isa.c,v 1.85 1996/05/14 00:31:04 thorpej Exp $ */ +/* + * Copyright (c) 1997, Jason Downs. All rights reserved. + * + * 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. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by Jason Downs for the + * OpenBSD system. + * 4. Neither the name(s) of the author(s) nor the name OpenBSD + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``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(S) 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. + */ + /*- * Copyright (c) 1993, 1994 Charles Hannum. All rights reserved. * @@ -185,3 +217,44 @@ isa_intr_typename(type) panic("isa_intr_typename: invalid type %d", type); } } + +#ifdef DIAGNOSTIC +void +isa_drq_alloc(vsp, drq) + void *vsp; + int drq; +{ + struct isa_softc *sc = vsp; + + if (drq < 0 || drq > 7) + panic("isa_drq_alloc: drq %d out of range\n", drq); + + sc->sc_drq |= (1 << drq); +} + +void +isa_drq_free(vsp, drq) + void *vsp; + int drq; +{ + struct isa_softc *sc = vsp; + + if (drq < 0 || drq > 7) + panic("isa_drq_free: drq %d out of range\n", drq); + + sc->sc_drq &= ~(1 << drq); +} + +int +isa_drq_isfree(vsp, drq) + void *vsp; + int drq; +{ + struct isa_softc *sc = vsp; + + if (drq < 0 || drq > 7) + panic("isa_drq_isfree: drq %d out of range\n", drq); + + return (!(sc->sc_drq << drq) & 1); +} +#endif /* DIAGNOSTIC */ |