1 /* 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 2002-2006 Bruce M. Simpson. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of Bruce M. Simpson nor the names of 16 * contributors may be used to endorse or promote products derived 17 * from this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY BRUCE M. SIMPSON AND AFFILIATES 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 * $FreeBSD$ 32 */ 33 34 /* 35 * All fields and quantities in this file are in little-endian byte order, 36 * unless otherwise specified. 37 */ 38 39 #ifndef _PIRTABLE_H 40 #define _PIRTABLE_H 41 42 #define PIR_BASE 0xF0000 43 #define PIR_SIZE 0x10000 44 #define PIR_OFFSET 16 45 46 #define PIR_DEV(x) (((x) & 0xF8) >> 3) 47 #define PIR_FUNC(x) ((x) & 0x7) 48 49 typedef struct { 50 uint8_t bus; /* bus number of this device */ 51 uint8_t devfunc; /* only upper 5 device bits valid */ 52 uint8_t inta_link; /* how INTA is linked */ 53 uint16_t inta_irqs; /* how INTA may be routed (bitset) */ 54 uint8_t intb_link; 55 uint16_t intb_irqs; 56 uint8_t intc_link; 57 uint16_t intc_irqs; 58 uint8_t intd_link; 59 uint16_t intd_irqs; /* how this pin may be routed */ 60 uint8_t slot; /* physical slot number on bus, 61 * slot 0 if motherboard */ 62 uint8_t reserved00; /* must be zero */ 63 } __packed pir_entry_t; 64 65 typedef struct { 66 uint32_t signature; /* $PIR */ 67 uint8_t minor; /* minor version (0) */ 68 uint8_t major; /* major version (1) */ 69 uint16_t size; /* total size of table */ 70 uint8_t bus; /* Bus number of router */ 71 uint8_t devfunc; /* Dev/Func of router */ 72 uint16_t excl_irqs; /* PCI Exclusive IRQs */ 73 uint32_t compatible; /* Device/Vendor ID of a register 74 * compatible PCI IRQ router device */ 75 uint32_t miniport_data; /* Windows specific */ 76 uint8_t reserved00[11]; /* Must be zero */ 77 uint8_t checksum; /* Inverse mod-256 sum of table bytes */ 78 pir_entry_t entry[1]; /* 1..N device entries */ 79 } __packed pir_table_t; 80 81 #endif /* _PIRTABLE_H */ 82