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a3be63b3ce
* Re-work the resource allocation code to use helper functions in subr_bus.c. * Add simple isa interface for manipulating the resource ranges which can be allocated and remove the code from isa_write_ivar() which was previously used for this purpose.
69 lines
2.4 KiB
C
69 lines
2.4 KiB
C
/*-
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* Copyright (c) 1999 Doug Rabson
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* All rights reserved.
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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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* $Id$
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*/
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/*
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* Parts of the ISA bus implementation common to all architectures.
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*
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* Drivers must not depend on information in this file as it can change
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* without notice.
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*/
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MALLOC_DECLARE(M_ISADEV);
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/*
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* The structure used to attach devices to the isa bus.
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*/
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struct isa_device {
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struct resource_list id_resources;
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int id_flags;
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};
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#define DEVTOISA(dev) ((struct isa_device *) device_get_ivars(dev))
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/*
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* These functions are architecture dependant.
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*/
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extern void isa_init(void);
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extern struct resource *isa_alloc_resource(device_t bus, device_t child,
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int type, int *rid,
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u_long start, u_long end,
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u_long count, u_int flags);
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extern int isa_release_resource(device_t bus, device_t child,
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int type, int rid,
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struct resource *r);
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/* XXX alphe declares these elsewhere */
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#ifndef __alpha__
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extern int isa_setup_intr(device_t bus, device_t child,
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struct resource *r, int flags,
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void (*ihand)(void *), void *arg, void **cookiep);
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extern int isa_teardown_intr(device_t bus, device_t child,
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struct resource *r, void *cookie);
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#endif
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