| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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_ */ |