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/* $NetBSD: ioport.h,v 1.8 2021/12/19 12:37:07 riastradh Exp $ */
/*-
* Copyright (c) 2013 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Taylor R. Campbell.
*
* 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.
*/
#ifndef _LINUX_IOPORT_H_
#define _LINUX_IOPORT_H_
#include <sys/types.h>
#include <sys/bus.h>
#include <linux/types.h>
#define IORESOURCE_IO __BIT(0)
#define IORESOURCE_MEM __BIT(1)
#define IORESOURCE_IRQ __BIT(2)
#define IORESOURCE_UNSET __BIT(3)
struct resource {
bus_addr_t start;
bus_addr_t end; /* WARNING: Inclusive! */
const char *name;
unsigned int flags;
bus_space_tag_t r_bst; /* This milk is not organic. */
bus_space_handle_t r_bsh;
};
#define DEFINE_RES_MEM(START, SIZE) \
{ .start = (START), .end = (START) + ((SIZE) - 1) }
static inline resource_size_t
resource_size(struct resource *resource)
{
return resource->end - resource->start + 1;
}
static inline bool
resource_contains(struct resource *r1, struct resource *r2)
{
if (r1->r_bst != r2->r_bst)
return false;
return r1->start <= r2->start && r2->end <= r1->end;
}
static inline void
release_resource(struct resource *resource)
{
bus_space_free(resource->r_bst, resource->r_bsh,
resource_size(resource));
}
#endif /* _LINUX_IOPORT_H_ */
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