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