1 /* 2 * SHPCHPRM Legacy: PHP Resource Manager for Non-ACPI/Legacy platform using HRT 3 * 4 * Copyright (C) 1995,2001 Compaq Computer Corporation 5 * Copyright (C) 2001 Greg Kroah-Hartman (greg@kroah.com) 6 * Copyright (C) 2001 IBM Corp. 7 * Copyright (C) 2003-2004 Intel Corporation 8 * 9 * All rights reserved. 10 * 11 * This program is free software; you can redistribute it and/or modify 12 * it under the terms of the GNU General Public License as published by 13 * the Free Software Foundation; either version 2 of the License, or (at 14 * your option) any later version. 15 * 16 * This program is distributed in the hope that it will be useful, but 17 * WITHOUT ANY WARRANTY; without even the implied warranty of 18 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or 19 * NON INFRINGEMENT. See the GNU General Public License for more 20 * details. 21 * 22 * You should have received a copy of the GNU General Public License 23 * along with this program; if not, write to the Free Software 24 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 25 * 26 * Send feedback to <greg@kroah.com>, <dely.l.sy@intel.com> 27 * 28 */ 29 30 #ifndef _SHPCHPRM_LEGACY_H_ 31 #define _SHPCHPRM_LEGACY_H_ 32 33 #define ROM_PHY_ADDR 0x0F0000 34 #define ROM_PHY_LEN 0x00FFFF 35 36 struct slot_rt { 37 u8 dev_func; 38 u8 primary_bus; 39 u8 secondary_bus; 40 u8 max_bus; 41 u16 io_base; 42 u16 io_length; 43 u16 mem_base; 44 u16 mem_length; 45 u16 pre_mem_base; 46 u16 pre_mem_length; 47 } __attribute__ ((packed)); 48 49 /* offsets to the hotplug slot resource table registers based on the above structure layout */ 50 enum slot_rt_offsets { 51 DEV_FUNC = offsetof(struct slot_rt, dev_func), 52 PRIMARY_BUS = offsetof(struct slot_rt, primary_bus), 53 SECONDARY_BUS = offsetof(struct slot_rt, secondary_bus), 54 MAX_BUS = offsetof(struct slot_rt, max_bus), 55 IO_BASE = offsetof(struct slot_rt, io_base), 56 IO_LENGTH = offsetof(struct slot_rt, io_length), 57 MEM_BASE = offsetof(struct slot_rt, mem_base), 58 MEM_LENGTH = offsetof(struct slot_rt, mem_length), 59 PRE_MEM_BASE = offsetof(struct slot_rt, pre_mem_base), 60 PRE_MEM_LENGTH = offsetof(struct slot_rt, pre_mem_length), 61 }; 62 63 struct hrt { 64 char sig0; 65 char sig1; 66 char sig2; 67 char sig3; 68 u16 unused_IRQ; 69 u16 PCIIRQ; 70 u8 number_of_entries; 71 u8 revision; 72 u16 reserved1; 73 u32 reserved2; 74 } __attribute__ ((packed)); 75 76 /* offsets to the hotplug resource table registers based on the above structure layout */ 77 enum hrt_offsets { 78 SIG0 = offsetof(struct hrt, sig0), 79 SIG1 = offsetof(struct hrt, sig1), 80 SIG2 = offsetof(struct hrt, sig2), 81 SIG3 = offsetof(struct hrt, sig3), 82 UNUSED_IRQ = offsetof(struct hrt, unused_IRQ), 83 PCIIRQ = offsetof(struct hrt, PCIIRQ), 84 NUMBER_OF_ENTRIES = offsetof(struct hrt, number_of_entries), 85 REVISION = offsetof(struct hrt, revision), 86 HRT_RESERVED1 = offsetof(struct hrt, reserved1), 87 HRT_RESERVED2 = offsetof(struct hrt, reserved2), 88 }; 89 90 struct irq_info { 91 u8 bus, devfn; /* bus, device and function */ 92 struct { 93 u8 link; /* IRQ line ID, chipset dependent, 0=not routed */ 94 u16 bitmap; /* Available IRQs */ 95 } __attribute__ ((packed)) irq[4]; 96 u8 slot; /* slot number, 0=onboard */ 97 u8 rfu; 98 } __attribute__ ((packed)); 99 100 struct irq_routing_table { 101 u32 signature; /* PIRQ_SIGNATURE should be here */ 102 u16 version; /* PIRQ_VERSION */ 103 u16 size; /* Table size in bytes */ 104 u8 rtr_bus, rtr_devfn; /* Where the interrupt router lies */ 105 u16 exclusive_irqs; /* IRQs devoted exclusively to PCI usage */ 106 u16 rtr_vendor, rtr_device; /* Vendor and device ID of interrupt router */ 107 u32 miniport_data; /* Crap */ 108 u8 rfu[11]; 109 u8 checksum; /* Modulo 256 checksum must give zero */ 110 struct irq_info slots[0]; 111 } __attribute__ ((packed)); 112 113 #endif /* _SHPCHPRM_LEGACY_H_ */ 114