LXR linux-old/drivers/hotplug/shpchprm

   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
  36struct 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 */
  50enum 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
  63struct 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 */
  77enum 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
  90struct 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
 100struct 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