1 /* $NetBSD: pciio.h,v 1.5 2016/09/24 23:12:54 mrg Exp $ */ 2 3 /* 4 * Copyright 2001 Wasabi Systems, Inc. 5 * All rights reserved. 6 * 7 * Written by Jason R. Thorpe for Wasabi Systems, Inc. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed for the NetBSD Project by 20 * Wasabi Systems, Inc. 21 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 22 * or promote products derived from this software without specific prior 23 * written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 * POSSIBILITY OF SUCH DAMAGE. 36 */ 37 38 #ifndef _DEV_PCI_PCIIO_H_ 39 #define _DEV_PCI_PCIIO_H_ 40 41 /* 42 * User -> kernel interface for PCI bus access. 43 */ 44 45 #include <sys/ioccom.h> 46 47 /* 48 * pciio_cfgreg: 49 * 50 * Representation of a PCI config space register. 51 */ 52 struct pciio_cfgreg { 53 u_int reg; /* offset into PCI configuration space */ 54 uint32_t val; /* value of the register */ 55 }; 56 57 /* 58 * Read and write PCI configuration space registers on a 59 * specific device. 60 */ 61 #define PCI_IOC_CFGREAD _IOWR('P', 0, struct pciio_cfgreg) 62 #define PCI_IOC_CFGWRITE _IOW('P', 1, struct pciio_cfgreg) 63 64 /* 65 * pciio_bdf_cfgreg: 66 * 67 * Like pciio_cfgreg, except for any bus/dev/func within 68 * a given PCI domain. 69 */ 70 struct pciio_bdf_cfgreg { 71 u_int bus; 72 u_int device; 73 u_int function; 74 struct pciio_cfgreg cfgreg; 75 }; 76 77 /* 78 * Read and write PCI configuration space registers on any 79 * device within a given PCI domain. 80 */ 81 #define PCI_IOC_BDF_CFGREAD _IOWR('P', 2, struct pciio_bdf_cfgreg) 82 #define PCI_IOC_BDF_CFGWRITE _IOW('P', 3, struct pciio_bdf_cfgreg) 83 84 /* 85 * pciio_businfo: 86 * 87 * Information for a PCI bus (autoconfiguration node) instance. 88 */ 89 struct pciio_businfo { 90 u_int busno; /* bus number */ 91 u_int maxdevs; /* max devices on bus */ 92 }; 93 94 #define PCI_IOC_BUSINFO _IOR('P', 4, struct pciio_businfo) 95 96 /* 97 * pciio_drvname: 98 * 99 * Driver info for a PCI device (autoconfiguration node) instance. 100 */ 101 102 /* The old drvname must be run on the correct bus. */ 103 #define PCI_IO_DRVNAME_LEN 16 104 struct pciio_drvname { 105 u_int device; /* in: device number */ 106 u_int function; /* in: function number */ 107 char name[PCI_IO_DRVNAME_LEN]; 108 }; 109 #define PCI_IOC_DRVNAME _IOWR('P', 5, struct pciio_drvname) 110 111 struct pciio_drvnameonbus { 112 u_int bus; /* in: (autoconf) bus number */ 113 u_int device; /* in: device number */ 114 u_int function; /* in: function number */ 115 char name[PCI_IO_DRVNAME_LEN]; 116 }; 117 #define PCI_IOC_DRVNAMEONBUS _IOWR('P', 5, struct pciio_drvnameonbus) 118 119 120 #endif /* _DEV_PCI_PCIIO_H_ */ 121