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 "dma.h"
  31
  32 #include <hw/ide/internal.h>
  33
  34 /***********************************************************/
  35 /* ISA IDE definitions */
  36
  37 typedef struct ISAIDEState {
  38     ISADevice dev;
  39     IDEBus    bus;
  40     uint32_t  iobase;
  41     uint32_t  iobase2;
  42     uint32_t  isairq;
  43     qemu_irq  irq;
  44 } ISAIDEState;
  45
  46 static void isa_ide_reset(DeviceState *d)
  47 {
  48     ISAIDEState *s = container_of(d, ISAIDEState, dev.qdev);
  49
  50     ide_bus_reset(&s->bus);
  51 }
  52
  53 static const VMStateDescription vmstate_ide_isa = {
  54     .name = "isa-ide",
  55     .version_id = 3,
  56     .minimum_version_id = 0,
  57     .minimum_version_id_old = 0,
  58     .fields      = (VMStateField []) {
  59         VMSTATE_IDE_BUS(bus, ISAIDEState),
  60         VMSTATE_IDE_DRIVES(bus.ifs, ISAIDEState),
  61         VMSTATE_END_OF_LIST()
  62     }
  63 };
  64
  65 static int isa_ide_initfn(ISADevice *dev)
  66 {
  67     ISAIDEState *s = DO_UPCAST(ISAIDEState, dev, dev);
  68
  69     ide_bus_new(&s->bus, &s->dev.qdev, 0);
  70     ide_init_ioport(&s->bus, s->iobase, s->iobase2);
  71     isa_init_irq(dev, &s->irq, s->isairq);
  72     isa_init_ioport_range(dev, s->iobase, 8);
  73     isa_init_ioport(dev, s->iobase2);
  74     ide_init2(&s->bus, s->irq);
  75     vmstate_register(&dev->qdev, 0, &vmstate_ide_isa, s);
  76     return 0;
  77 };
  78
  79 ISADevice *isa_ide_init(int iobase, int iobase2, int isairq,
  80                         DriveInfo *hd0, DriveInfo *hd1)
  81 {
  82     ISADevice *dev;
  83     ISAIDEState *s;
  84
  85     dev = isa_create("isa-ide");
  86     qdev_prop_set_uint32(&dev->qdev, "iobase",  iobase);
  87     qdev_prop_set_uint32(&dev->qdev, "iobase2", iobase2);
  88     qdev_prop_set_uint32(&dev->qdev, "irq",     isairq);
  89     if (qdev_init(&dev->qdev) < 0)
  90         return NULL;
  91
  92     s = DO_UPCAST(ISAIDEState, dev, dev);
  93     if (hd0)
  94         ide_create_drive(&s->bus, 0, hd0);
  95     if (hd1)
  96         ide_create_drive(&s->bus, 1, hd1);
  97     return dev;
  98 }
  99
 100 static ISADeviceInfo isa_ide_info = {
 101     .qdev.name  = "isa-ide",
 102     .qdev.fw_name  = "ide",
 103     .qdev.size  = sizeof(ISAIDEState),
 104     .init       = isa_ide_initfn,
 105     .qdev.reset = isa_ide_reset,
 106     .qdev.props = (Property[]) {
 107         DEFINE_PROP_HEX32("iobase",  ISAIDEState, iobase,  0x1f0),
 108         DEFINE_PROP_HEX32("iobase2", ISAIDEState, iobase2, 0x3f6),
 109         DEFINE_PROP_UINT32("irq",    ISAIDEState, isairq,  14),
 110         DEFINE_PROP_END_OF_LIST(),
 111     },
 112 };
 113
 114 static void isa_ide_register_devices(void)
 115 {
 116     isa_qdev_register(&isa_ide_info);
 117 }
 118
 119 device_init(isa_ide_register_devices)