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/isa.h"
35 #include "qom/object.h"
36 #include "ide-internal.h"
37
38 /***********************************************************/
39 /* ISA IDE definitions */
40
41 struct ISAIDEState {
42 ISADevice parent_obj;
43
44 IDEBus bus;
45 uint32_t iobase;
46 uint32_t iobase2;
47 uint32_t irqnum;
48 };
49
isa_ide_reset(DeviceState * d)50 static void isa_ide_reset(DeviceState *d)
51 {
52 ISAIDEState *s = ISA_IDE(d);
53
54 ide_bus_reset(&s->bus);
55 }
56
57 static const VMStateDescription vmstate_ide_isa = {
58 .name = "isa-ide",
59 .version_id = 3,
60 .minimum_version_id = 0,
61 .fields = (const VMStateField[]) {
62 VMSTATE_IDE_BUS(bus, ISAIDEState),
63 VMSTATE_IDE_DRIVES(bus.ifs, ISAIDEState),
64 VMSTATE_END_OF_LIST()
65 }
66 };
67
isa_ide_realizefn(DeviceState * dev,Error ** errp)68 static 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_init(&s->bus, sizeof(s->bus), dev, 0, 2);
74 ide_init_ioport(&s->bus, isadev, s->iobase, s->iobase2);
75 ide_bus_init_output_irq(&s->bus, isa_get_irq(isadev, s->irqnum));
76 vmstate_register_any(VMSTATE_IF(dev), &vmstate_ide_isa, s);
77 ide_bus_register_restart_cb(&s->bus);
78 }
79
isa_ide_init(ISABus * bus,int iobase,int iobase2,int irqnum,DriveInfo * hd0,DriveInfo * hd1)80 ISADevice *isa_ide_init(ISABus *bus, int iobase, int iobase2, int irqnum,
81 DriveInfo *hd0, DriveInfo *hd1)
82 {
83 DeviceState *dev;
84 ISADevice *isadev;
85 ISAIDEState *s;
86
87 isadev = isa_new(TYPE_ISA_IDE);
88 dev = DEVICE(isadev);
89 qdev_prop_set_uint32(dev, "iobase", iobase);
90 qdev_prop_set_uint32(dev, "iobase2", iobase2);
91 qdev_prop_set_uint32(dev, "irq", irqnum);
92 isa_realize_and_unref(isadev, bus, &error_fatal);
93
94 s = ISA_IDE(dev);
95 if (hd0) {
96 ide_bus_create_drive(&s->bus, 0, hd0);
97 }
98 if (hd1) {
99 ide_bus_create_drive(&s->bus, 1, hd1);
100 }
101 return isadev;
102 }
103
104 static Property isa_ide_properties[] = {
105 DEFINE_PROP_UINT32("iobase", ISAIDEState, iobase, 0x1f0),
106 DEFINE_PROP_UINT32("iobase2", ISAIDEState, iobase2, 0x3f6),
107 DEFINE_PROP_UINT32("irq", ISAIDEState, irqnum, 14),
108 DEFINE_PROP_END_OF_LIST(),
109 };
110
isa_ide_class_initfn(ObjectClass * klass,void * data)111 static void isa_ide_class_initfn(ObjectClass *klass, void *data)
112 {
113 DeviceClass *dc = DEVICE_CLASS(klass);
114
115 dc->realize = isa_ide_realizefn;
116 dc->fw_name = "ide";
117 device_class_set_legacy_reset(dc, isa_ide_reset);
118 device_class_set_props(dc, isa_ide_properties);
119 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
120 }
121
122 static const TypeInfo isa_ide_info = {
123 .name = TYPE_ISA_IDE,
124 .parent = TYPE_ISA_DEVICE,
125 .instance_size = sizeof(ISAIDEState),
126 .class_init = isa_ide_class_initfn,
127 };
128
isa_ide_register_types(void)129 static void isa_ide_register_types(void)
130 {
131 type_register_static(&isa_ide_info);
132 }
133
134 type_init(isa_ide_register_types)
135