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 <hw/hw.h>
  26 #include <hw/pc.h>
  27 #include <hw/isa.h>
  28 #include "block.h"
  29 #include "block_int.h"
  30 #include "sysemu.h"
  31 #include "dma.h"
  32
  33 #include <hw/ide/internal.h>
  34
  35 /***********************************************************/
  36 /* ISA IDE definitions */
  37
  38 typedef struct ISAIDEState {
  39     ISADevice dev;
  40     IDEBus    bus;
  41     uint32_t  iobase;
  42     uint32_t  iobase2;
  43     uint32_t  isairq;
  44     qemu_irq  irq;
  45 } ISAIDEState;
  46
  47 static void isa_ide_reset(DeviceState *d)
  48 {
  49     ISAIDEState *s = container_of(d, ISAIDEState, dev.qdev);
  50
  51     ide_bus_reset(&s->bus);
  52 }
  53
  54 static const VMStateDescription vmstate_ide_isa = {
  55     .name = "isa-ide",
  56     .version_id = 3,
  57     .minimum_version_id = 0,
  58     .minimum_version_id_old = 0,
  59     .fields      = (VMStateField []) {
  60         VMSTATE_IDE_BUS(bus, ISAIDEState),
  61         VMSTATE_IDE_DRIVES(bus.ifs, ISAIDEState),
  62         VMSTATE_END_OF_LIST()
  63     }
  64 };
  65
  66 static int isa_ide_initfn(ISADevice *dev)
  67 {
  68     ISAIDEState *s = DO_UPCAST(ISAIDEState, dev, dev);
  69
  70     ide_bus_new(&s->bus, &s->dev.qdev);
  71     ide_init_ioport(&s->bus, s->iobase, s->iobase2);
  72     isa_init_irq(dev, &s->irq, s->isairq);
  73     ide_init2(&s->bus, s->irq);
  74     vmstate_register(0, &vmstate_ide_isa, s);
  75     return 0;
  76 };
  77
  78 int isa_ide_init(int iobase, int iobase2, int isairq,
  79                  DriveInfo *hd0, DriveInfo *hd1)
  80 {
  81     ISADevice *dev;
  82     ISAIDEState *s;
  83
  84     dev = isa_create("isa-ide");
  85     qdev_prop_set_uint32(&dev->qdev, "iobase",  iobase);
  86     qdev_prop_set_uint32(&dev->qdev, "iobase2", iobase2);
  87     qdev_prop_set_uint32(&dev->qdev, "irq",     isairq);
  88     if (qdev_init(&dev->qdev) < 0)
  89         return -1;
  90
  91     s = DO_UPCAST(ISAIDEState, dev, dev);
  92     if (hd0)
  93         ide_create_drive(&s->bus, 0, hd0);
  94     if (hd1)
  95         ide_create_drive(&s->bus, 1, hd1);
  96     return 0;
  97 }
  98
  99 static ISADeviceInfo isa_ide_info = {
 100     .qdev.name  = "isa-ide",
 101     .qdev.size  = sizeof(ISAIDEState),
 102     .init       = isa_ide_initfn,
 103     .qdev.reset = isa_ide_reset,
 104     .qdev.props = (Property[]) {
 105         DEFINE_PROP_HEX32("iobase",  ISAIDEState, iobase,  0x1f0),
 106         DEFINE_PROP_HEX32("iobase2", ISAIDEState, iobase2, 0x3f6),
 107         DEFINE_PROP_UINT32("irq",    ISAIDEState, isairq,  14),
 108         DEFINE_PROP_END_OF_LIST(),
 109     },
 110 };
 111
 112 static void isa_ide_register_devices(void)
 113 {
 114     isa_qdev_register(&isa_ide_info);
 115 }
 116
 117 device_init(isa_ide_register_devices)