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#include "qemu/osdep.h"
  26#include <hw/hw.h>
  27#include <hw/i386/pc.h>
  28#include <hw/isa/isa.h>
  29#include "sysemu/block-backend.h"
  30#include "sysemu/dma.h"
  31
  32#include <hw/ide/internal.h>
  33
  34/***********************************************************/
  35/* ISA IDE definitions */
  36
  37#define TYPE_ISA_IDE "isa-ide"
  38#define ISA_IDE(obj) OBJECT_CHECK(ISAIDEState, (obj), TYPE_ISA_IDE)
  39
  40typedef struct ISAIDEState {
  41    ISADevice parent_obj;
  42
  43    IDEBus    bus;
  44    uint32_t  iobase;
  45    uint32_t  iobase2;
  46    uint32_t  isairq;
  47    qemu_irq  irq;
  48} ISAIDEState;
  49
  50static void isa_ide_reset(DeviceState *d)
  51{
  52    ISAIDEState *s = ISA_IDE(d);
  53
  54    ide_bus_reset(&s->bus);
  55}
  56
  57static const VMStateDescription vmstate_ide_isa = {
  58    .name = "isa-ide",
  59    .version_id = 3,
  60    .minimum_version_id = 0,
  61    .fields = (VMStateField[]) {
  62        VMSTATE_IDE_BUS(bus, ISAIDEState),
  63        VMSTATE_IDE_DRIVES(bus.ifs, ISAIDEState),
  64        VMSTATE_END_OF_LIST()
  65    }
  66};
  67
  68static void isa_ide_realizefn(DeviceState *dev, Error **errp)
  69{
  70    ISADevice *isadev = ISA_DEVICE(dev);
  71    ISAIDEState *s = ISA_IDE(dev);
  72
  73    ide_bus_new(&s->bus, sizeof(s->bus), dev, 0, 2);
  74    ide_init_ioport(&s->bus, isadev, s->iobase, s->iobase2);
  75    isa_init_irq(isadev, &s->irq, s->isairq);
  76    ide_init2(&s->bus, s->irq);
  77    vmstate_register(dev, 0, &vmstate_ide_isa, s);
  78    ide_register_restart_cb(&s->bus);
  79}
  80
  81ISADevice *isa_ide_init(ISABus *bus, int iobase, int iobase2, int isairq,
  82                        DriveInfo *hd0, DriveInfo *hd1)
  83{
  84    DeviceState *dev;
  85    ISADevice *isadev;
  86    ISAIDEState *s;
  87
  88    isadev = isa_create(bus, TYPE_ISA_IDE);
  89    dev = DEVICE(isadev);
  90    qdev_prop_set_uint32(dev, "iobase",  iobase);
  91    qdev_prop_set_uint32(dev, "iobase2", iobase2);
  92    qdev_prop_set_uint32(dev, "irq",     isairq);
  93    qdev_init_nofail(dev);
  94
  95    s = ISA_IDE(dev);
  96    if (hd0) {
  97        ide_create_drive(&s->bus, 0, hd0);
  98    }
  99    if (hd1) {
 100        ide_create_drive(&s->bus, 1, hd1);
 101    }
 102    return isadev;
 103}
 104
 105static Property isa_ide_properties[] = {
 106    DEFINE_PROP_UINT32("iobase",  ISAIDEState, iobase,  0x1f0),
 107    DEFINE_PROP_UINT32("iobase2", ISAIDEState, iobase2, 0x3f6),
 108    DEFINE_PROP_UINT32("irq",    ISAIDEState, isairq,  14),
 109    DEFINE_PROP_END_OF_LIST(),
 110};
 111
 112static void isa_ide_class_initfn(ObjectClass *klass, void *data)
 113{
 114    DeviceClass *dc = DEVICE_CLASS(klass);
 115
 116    dc->realize = isa_ide_realizefn;
 117    dc->fw_name = "ide";
 118    dc->reset = isa_ide_reset;
 119    dc->props = isa_ide_properties;
 120    set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
 121}
 122
 123static const TypeInfo isa_ide_info = {
 124    .name          = TYPE_ISA_IDE,
 125    .parent        = TYPE_ISA_DEVICE,
 126    .instance_size = sizeof(ISAIDEState),
 127    .class_init    = isa_ide_class_initfn,
 128};
 129
 130static void isa_ide_register_types(void)
 131{
 132    type_register_static(&isa_ide_info);
 133}
 134
 135type_init(isa_ide_register_types)
 136