pcie_aer: support configurable AER capa version
[qemu.git] / hw / char / serial-isa.c
1 /*
2 * QEMU 16550A UART emulation
3 *
4 * Copyright (c) 2003-2004 Fabrice Bellard
5 * Copyright (c) 2008 Citrix Systems, Inc.
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 "qapi/error.h"
28 #include "hw/char/serial.h"
29 #include "hw/isa/isa.h"
30
31 #define ISA_SERIAL(obj) OBJECT_CHECK(ISASerialState, (obj), TYPE_ISA_SERIAL)
32
33 typedef struct ISASerialState {
34 ISADevice parent_obj;
35
36 uint32_t index;
37 uint32_t iobase;
38 uint32_t isairq;
39 SerialState state;
40 } ISASerialState;
41
42 static const int isa_serial_io[MAX_SERIAL_PORTS] = {
43 0x3f8, 0x2f8, 0x3e8, 0x2e8
44 };
45 static const int isa_serial_irq[MAX_SERIAL_PORTS] = {
46 4, 3, 4, 3
47 };
48
49 static void serial_isa_realizefn(DeviceState *dev, Error **errp)
50 {
51 static int index;
52 ISADevice *isadev = ISA_DEVICE(dev);
53 ISASerialState *isa = ISA_SERIAL(dev);
54 SerialState *s = &isa->state;
55
56 if (isa->index == -1) {
57 isa->index = index;
58 }
59 if (isa->index >= MAX_SERIAL_PORTS) {
60 error_setg(errp, "Max. supported number of ISA serial ports is %d.",
61 MAX_SERIAL_PORTS);
62 return;
63 }
64 if (isa->iobase == -1) {
65 isa->iobase = isa_serial_io[isa->index];
66 }
67 if (isa->isairq == -1) {
68 isa->isairq = isa_serial_irq[isa->index];
69 }
70 index++;
71
72 s->baudbase = 115200;
73 isa_init_irq(isadev, &s->irq, isa->isairq);
74 serial_realize_core(s, errp);
75 qdev_set_legacy_instance_id(dev, isa->iobase, 3);
76
77 memory_region_init_io(&s->io, OBJECT(isa), &serial_io_ops, s, "serial", 8);
78 isa_register_ioport(isadev, &s->io, isa->iobase);
79 }
80
81 static const VMStateDescription vmstate_isa_serial = {
82 .name = "serial",
83 .version_id = 3,
84 .minimum_version_id = 2,
85 .fields = (VMStateField[]) {
86 VMSTATE_STRUCT(state, ISASerialState, 0, vmstate_serial, SerialState),
87 VMSTATE_END_OF_LIST()
88 }
89 };
90
91 static Property serial_isa_properties[] = {
92 DEFINE_PROP_UINT32("index", ISASerialState, index, -1),
93 DEFINE_PROP_UINT32("iobase", ISASerialState, iobase, -1),
94 DEFINE_PROP_UINT32("irq", ISASerialState, isairq, -1),
95 DEFINE_PROP_CHR("chardev", ISASerialState, state.chr),
96 DEFINE_PROP_UINT32("wakeup", ISASerialState, state.wakeup, 0),
97 DEFINE_PROP_END_OF_LIST(),
98 };
99
100 static void serial_isa_class_initfn(ObjectClass *klass, void *data)
101 {
102 DeviceClass *dc = DEVICE_CLASS(klass);
103
104 dc->realize = serial_isa_realizefn;
105 dc->vmsd = &vmstate_isa_serial;
106 dc->props = serial_isa_properties;
107 set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
108 }
109
110 static const TypeInfo serial_isa_info = {
111 .name = TYPE_ISA_SERIAL,
112 .parent = TYPE_ISA_DEVICE,
113 .instance_size = sizeof(ISASerialState),
114 .class_init = serial_isa_class_initfn,
115 };
116
117 static void serial_register_types(void)
118 {
119 type_register_static(&serial_isa_info);
120 }
121
122 type_init(serial_register_types)
123
124 static void serial_isa_init(ISABus *bus, int index, CharDriverState *chr)
125 {
126 DeviceState *dev;
127 ISADevice *isadev;
128
129 isadev = isa_create(bus, TYPE_ISA_SERIAL);
130 dev = DEVICE(isadev);
131 qdev_prop_set_uint32(dev, "index", index);
132 qdev_prop_set_chr(dev, "chardev", chr);
133 qdev_init_nofail(dev);
134 }
135
136 void serial_hds_isa_init(ISABus *bus, int from, int to)
137 {
138 int i;
139
140 assert(from >= 0);
141 assert(to <= MAX_SERIAL_PORTS);
142
143 for (i = from; i < to; ++i) {
144 if (serial_hds[i]) {
145 serial_isa_init(bus, i, serial_hds[i]);
146 }
147 }
148 }