1 /* $NetBSD: pio.h,v 1.10 2012/02/06 02:14:13 matt Exp $ */ 2 3 /*- 4 * Copyright (c) 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef _ALPHA_PIO_H_ 33 #define _ALPHA_PIO_H_ 34 35 #include <sys/cdefs.h> 36 #include <machine/bus_user.h> 37 38 #ifdef _KERNEL 39 #error This file is for userspace only. 40 #else 41 struct alpha_pci_io_ops { 42 uint8_t (*apio_inb)(bus_addr_t); 43 uint16_t (*apio_inw)(bus_addr_t); 44 uint32_t (*apio_inl)(bus_addr_t); 45 void (*apio_outb)(bus_addr_t, uint8_t); 46 void (*apio_outw)(bus_addr_t, uint16_t); 47 void (*apio_outl)(bus_addr_t, uint32_t); 48 }; 49 50 #define inb(addr) (*alpha_pci_io_switch->apio_inb)((addr)) 51 #define inw(addr) (*alpha_pci_io_switch->apio_inw)((addr)) 52 #define inl(addr) (*alpha_pci_io_switch->apio_inl)((addr)) 53 54 #define outb(addr, val) (*alpha_pci_io_switch->apio_outb)((addr), (val)) 55 #define outw(addr, val) (*alpha_pci_io_switch->apio_outw)((addr), (val)) 56 #define outl(addr, val) (*alpha_pci_io_switch->apio_outl)((addr), (val)) 57 58 __BEGIN_DECLS 59 extern const struct alpha_pci_io_ops *alpha_pci_io_switch; 60 61 int alpha_pci_io_enable(int); 62 __END_DECLS 63 #endif /* _KERNEL */ 64 65 #endif /* _ALPHA_PIO_H_ */ 66