sm501: Add missing arbitration control register
[qemu.git] / hw / isa / piix4.c
1 /*
2 * QEMU PIIX4 PCI Bridge Emulation
3 *
4 * Copyright (c) 2006 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24
25 #include "qemu/osdep.h"
26 #include "hw/hw.h"
27 #include "hw/i386/pc.h"
28 #include "hw/pci/pci.h"
29 #include "hw/isa/isa.h"
30 #include "hw/sysbus.h"
31
32 PCIDevice *piix4_dev;
33
34 typedef struct PIIX4State {
35 PCIDevice dev;
36 } PIIX4State;
37
38 #define TYPE_PIIX4_PCI_DEVICE "PIIX4"
39 #define PIIX4_PCI_DEVICE(obj) \
40 OBJECT_CHECK(PIIX4State, (obj), TYPE_PIIX4_PCI_DEVICE)
41
42 static void piix4_reset(void *opaque)
43 {
44 PIIX4State *d = opaque;
45 uint8_t *pci_conf = d->dev.config;
46
47 pci_conf[0x04] = 0x07; // master, memory and I/O
48 pci_conf[0x05] = 0x00;
49 pci_conf[0x06] = 0x00;
50 pci_conf[0x07] = 0x02; // PCI_status_devsel_medium
51 pci_conf[0x4c] = 0x4d;
52 pci_conf[0x4e] = 0x03;
53 pci_conf[0x4f] = 0x00;
54 pci_conf[0x60] = 0x0a; // PCI A -> IRQ 10
55 pci_conf[0x61] = 0x0a; // PCI B -> IRQ 10
56 pci_conf[0x62] = 0x0b; // PCI C -> IRQ 11
57 pci_conf[0x63] = 0x0b; // PCI D -> IRQ 11
58 pci_conf[0x69] = 0x02;
59 pci_conf[0x70] = 0x80;
60 pci_conf[0x76] = 0x0c;
61 pci_conf[0x77] = 0x0c;
62 pci_conf[0x78] = 0x02;
63 pci_conf[0x79] = 0x00;
64 pci_conf[0x80] = 0x00;
65 pci_conf[0x82] = 0x00;
66 pci_conf[0xa0] = 0x08;
67 pci_conf[0xa2] = 0x00;
68 pci_conf[0xa3] = 0x00;
69 pci_conf[0xa4] = 0x00;
70 pci_conf[0xa5] = 0x00;
71 pci_conf[0xa6] = 0x00;
72 pci_conf[0xa7] = 0x00;
73 pci_conf[0xa8] = 0x0f;
74 pci_conf[0xaa] = 0x00;
75 pci_conf[0xab] = 0x00;
76 pci_conf[0xac] = 0x00;
77 pci_conf[0xae] = 0x00;
78 }
79
80 static const VMStateDescription vmstate_piix4 = {
81 .name = "PIIX4",
82 .version_id = 2,
83 .minimum_version_id = 2,
84 .fields = (VMStateField[]) {
85 VMSTATE_PCI_DEVICE(dev, PIIX4State),
86 VMSTATE_END_OF_LIST()
87 }
88 };
89
90 static void piix4_realize(PCIDevice *dev, Error **errp)
91 {
92 PIIX4State *d = PIIX4_PCI_DEVICE(dev);
93
94 if (!isa_bus_new(DEVICE(d), pci_address_space(dev),
95 pci_address_space_io(dev), errp)) {
96 return;
97 }
98 piix4_dev = &d->dev;
99 qemu_register_reset(piix4_reset, d);
100 }
101
102 int piix4_init(PCIBus *bus, ISABus **isa_bus, int devfn)
103 {
104 PCIDevice *d;
105
106 d = pci_create_simple_multifunction(bus, devfn, true, "PIIX4");
107 *isa_bus = ISA_BUS(qdev_get_child_bus(DEVICE(d), "isa.0"));
108 return d->devfn;
109 }
110
111 static void piix4_class_init(ObjectClass *klass, void *data)
112 {
113 DeviceClass *dc = DEVICE_CLASS(klass);
114 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
115
116 k->realize = piix4_realize;
117 k->vendor_id = PCI_VENDOR_ID_INTEL;
118 k->device_id = PCI_DEVICE_ID_INTEL_82371AB_0;
119 k->class_id = PCI_CLASS_BRIDGE_ISA;
120 dc->desc = "ISA bridge";
121 dc->vmsd = &vmstate_piix4;
122 /*
123 * Reason: part of PIIX4 southbridge, needs to be wired up,
124 * e.g. by mips_malta_init()
125 */
126 dc->cannot_instantiate_with_device_add_yet = true;
127 dc->hotpluggable = false;
128 }
129
130 static const TypeInfo piix4_info = {
131 .name = TYPE_PIIX4_PCI_DEVICE,
132 .parent = TYPE_PCI_DEVICE,
133 .instance_size = sizeof(PIIX4State),
134 .class_init = piix4_class_init,
135 };
136
137 static void piix4_register_types(void)
138 {
139 type_register_static(&piix4_info);
140 }
141
142 type_init(piix4_register_types)