LXR qemu/hw/ide/isa.c

   1/*
   2 * QEMU IDE Emulation: ISA Bus support.
   3 *
   4 * Copyright (c) 2003 Fabrice Bellard
   5 * Copyright (c) 2006 Openedhand Ltd.
   6 *
   7 * Permission is hereby granted, free of charge, to any person obtaining a copy
   8 * of this software and associated documentation files (the "Software"), to deal
   9 * in the Software without restriction, including without limitation the rights
  10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  11 * copies of the Software, and to permit persons to whom the Software is
  12 * furnished to do so, subject to the following conditions:
  13 *
  14 * The above copyright notice and this permission notice shall be included in
  15 * all copies or substantial portions of the Software.
  16 *
  17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  23 * THE SOFTWARE.
  24 */
  25
  26#include "qemu/osdep.h"
  27#include "hw/isa/isa.h"
  28#include "hw/qdev-properties.h"
  29#include "migration/vmstate.h"
  30#include "qapi/error.h"
  31#include "qemu/module.h"
  32#include "sysemu/dma.h"
  33
  34#include "hw/ide/internal.h"
  35#include "qom/object.h"
  36
  37/***********************************************************/
  38/* ISA IDE definitions */
  39
  40#define TYPE_ISA_IDE "isa-ide"
  41OBJECT_DECLARE_SIMPLE_TYPE(ISAIDEState, ISA_IDE)
  42
  43struct ISAIDEState {
  44    ISADevice parent_obj;
  45
  46    IDEBus    bus;
  47    uint32_t  iobase;
  48    uint32_t  iobase2;
  49    uint32_t  isairq;
  50    qemu_irq  irq;
  51};
  52
  53static void isa_ide_reset(DeviceState *d)
  54{
  55    ISAIDEState *s = ISA_IDE(d);
  56
  57    ide_bus_reset(&s->bus);
  58}
  59
  60static const VMStateDescription vmstate_ide_isa = {
  61    .name = "isa-ide",
  62    .version_id = 3,
  63    .minimum_version_id = 0,
  64    .fields = (VMStateField[]) {
  65        VMSTATE_IDE_BUS(bus, ISAIDEState),
  66        VMSTATE_IDE_DRIVES(bus.ifs, ISAIDEState),
  67        VMSTATE_END_OF_LIST()
  68    }
  69};
  70
  71static void isa_ide_realizefn(DeviceState *dev, Error **errp)
  72{
  73    ISADevice *isadev = ISA_DEVICE(dev);
  74    ISAIDEState *s = ISA_IDE(dev);
  75
  76    ide_bus_new(&s->bus, sizeof(s->bus), dev, 0, 2);
  77    ide_init_ioport(&s->bus, isadev, s->iobase, s->iobase2);
  78    isa_init_irq(isadev, &s->irq, s->isairq);
  79    ide_init2(&s->bus, s->irq);
  80    vmstate_register(VMSTATE_IF(dev), 0, &vmstate_ide_isa, s);
  81    ide_register_restart_cb(&s->bus);
  82}
  83
  84ISADevice *isa_ide_init(ISABus *bus, int iobase, int iobase2, int isairq,
  85                        DriveInfo *hd0, DriveInfo *hd1)
  86{
  87    DeviceState *dev;
  88    ISADevice *isadev;
  89    ISAIDEState *s;
  90
  91    isadev = isa_new(TYPE_ISA_IDE);
  92    dev = DEVICE(isadev);
  93    qdev_prop_set_uint32(dev, "iobase",  iobase);
  94    qdev_prop_set_uint32(dev, "iobase2", iobase2);
  95    qdev_prop_set_uint32(dev, "irq",     isairq);
  96    isa_realize_and_unref(isadev, bus, &error_fatal);
  97
  98    s = ISA_IDE(dev);
  99    if (hd0) {
 100        ide_create_drive(&s->bus, 0, hd0);
 101    }
 102    if (hd1) {
 103        ide_create_drive(&s->bus, 1, hd1);
 104    }
 105    return isadev;
 106}
 107
 108static Property isa_ide_properties[] = {
 109    DEFINE_PROP_UINT32("iobase",  ISAIDEState, iobase,  0x1f0),
 110    DEFINE_PROP_UINT32("iobase2", ISAIDEState, iobase2, 0x3f6),
 111    DEFINE_PROP_UINT32("irq",    ISAIDEState, isairq,  14),
 112    DEFINE_PROP_END_OF_LIST(),
 113};
 114
 115static void isa_ide_class_initfn(ObjectClass *klass, void *data)
 116{
 117    DeviceClass *dc = DEVICE_CLASS(klass);
 118
 119    dc->realize = isa_ide_realizefn;
 120    dc->fw_name = "ide";
 121    dc->reset = isa_ide_reset;
 122    device_class_set_props(dc, isa_ide_properties);
 123    set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
 124}
 125
 126static const TypeInfo isa_ide_info = {
 127    .name          = TYPE_ISA_IDE,
 128    .parent        = TYPE_ISA_DEVICE,
 129    .instance_size = sizeof(ISAIDEState),
 130    .class_init    = isa_ide_class_initfn,
 131};
 132
 133static void isa_ide_register_types(void)
 134{
 135    type_register_static(&isa_ide_info);
 136}
 137
 138type_init(isa_ide_register_types)
 139