1 1.8 riastrad /* $NetBSD: ioport.h,v 1.8 2021/12/19 12:37:07 riastradh Exp $ */ 2 1.2 riastrad 3 1.2 riastrad /*- 4 1.2 riastrad * Copyright (c) 2013 The NetBSD Foundation, Inc. 5 1.2 riastrad * All rights reserved. 6 1.2 riastrad * 7 1.2 riastrad * This code is derived from software contributed to The NetBSD Foundation 8 1.2 riastrad * by Taylor R. Campbell. 9 1.2 riastrad * 10 1.2 riastrad * Redistribution and use in source and binary forms, with or without 11 1.2 riastrad * modification, are permitted provided that the following conditions 12 1.2 riastrad * are met: 13 1.2 riastrad * 1. Redistributions of source code must retain the above copyright 14 1.2 riastrad * notice, this list of conditions and the following disclaimer. 15 1.2 riastrad * 2. Redistributions in binary form must reproduce the above copyright 16 1.2 riastrad * notice, this list of conditions and the following disclaimer in the 17 1.2 riastrad * documentation and/or other materials provided with the distribution. 18 1.2 riastrad * 19 1.2 riastrad * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 1.2 riastrad * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 1.2 riastrad * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 1.2 riastrad * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 1.2 riastrad * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 1.2 riastrad * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 1.2 riastrad * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 1.2 riastrad * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 1.2 riastrad * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 1.2 riastrad * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 1.2 riastrad * POSSIBILITY OF SUCH DAMAGE. 30 1.2 riastrad */ 31 1.2 riastrad 32 1.2 riastrad #ifndef _LINUX_IOPORT_H_ 33 1.2 riastrad #define _LINUX_IOPORT_H_ 34 1.2 riastrad 35 1.2 riastrad #include <sys/types.h> 36 1.2 riastrad #include <sys/bus.h> 37 1.2 riastrad 38 1.8 riastrad #include <linux/types.h> 39 1.8 riastrad 40 1.7 riastrad #define IORESOURCE_IO __BIT(0) 41 1.7 riastrad #define IORESOURCE_MEM __BIT(1) 42 1.7 riastrad #define IORESOURCE_IRQ __BIT(2) 43 1.7 riastrad #define IORESOURCE_UNSET __BIT(3) 44 1.2 riastrad 45 1.2 riastrad struct resource { 46 1.2 riastrad bus_addr_t start; 47 1.4 riastrad bus_addr_t end; /* WARNING: Inclusive! */ 48 1.2 riastrad const char *name; 49 1.2 riastrad unsigned int flags; 50 1.2 riastrad bus_space_tag_t r_bst; /* This milk is not organic. */ 51 1.2 riastrad bus_space_handle_t r_bsh; 52 1.2 riastrad }; 53 1.2 riastrad 54 1.5 riastrad #define DEFINE_RES_MEM(START, SIZE) \ 55 1.5 riastrad { .start = (START), .end = (START) + ((SIZE) - 1) } 56 1.5 riastrad 57 1.8 riastrad static inline resource_size_t 58 1.3 riastrad resource_size(struct resource *resource) 59 1.3 riastrad { 60 1.4 riastrad return resource->end - resource->start + 1; 61 1.3 riastrad } 62 1.3 riastrad 63 1.5 riastrad static inline bool 64 1.5 riastrad resource_contains(struct resource *r1, struct resource *r2) 65 1.5 riastrad { 66 1.5 riastrad if (r1->r_bst != r2->r_bst) 67 1.5 riastrad return false; 68 1.5 riastrad return r1->start <= r2->start && r2->end <= r1->end; 69 1.5 riastrad } 70 1.5 riastrad 71 1.2 riastrad static inline void 72 1.2 riastrad release_resource(struct resource *resource) 73 1.2 riastrad { 74 1.4 riastrad bus_space_free(resource->r_bst, resource->r_bsh, 75 1.4 riastrad resource_size(resource)); 76 1.2 riastrad } 77 1.2 riastrad 78 1.2 riastrad #endif /* _LINUX_IOPORT_H_ */ 79
Indexes created Sun Sep 21 19:09:51 GMT 2025