]> Git Repo - qemu.git/blame - hw/char/serial-pci.c
x86: Clean up includes
[qemu.git] / hw / char / serial-pci.c
CommitLineData
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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
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26/* see docs/specs/pci-serial.txt */
27
b6a0aa05 28#include "qemu/osdep.h"
0d09e41a 29#include "hw/char/serial.h"
83c9f4ca 30#include "hw/pci/pci.h"
419ad672 31
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32#define PCI_SERIAL_MAX_PORTS 4
33
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34typedef struct PCISerialState {
35 PCIDevice dev;
36 SerialState state;
13cc2c3e 37 uint8_t prog_if;
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38} PCISerialState;
39
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40typedef struct PCIMultiSerialState {
41 PCIDevice dev;
42 MemoryRegion iobar;
43 uint32_t ports;
44 char *name[PCI_SERIAL_MAX_PORTS];
45 SerialState state[PCI_SERIAL_MAX_PORTS];
46 uint32_t level[PCI_SERIAL_MAX_PORTS];
47 qemu_irq *irqs;
13cc2c3e 48 uint8_t prog_if;
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49} PCIMultiSerialState;
50
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51static void multi_serial_pci_exit(PCIDevice *dev);
52
28d85904 53static void serial_pci_realize(PCIDevice *dev, Error **errp)
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54{
55 PCISerialState *pci = DO_UPCAST(PCISerialState, dev, dev);
56 SerialState *s = &pci->state;
db895a1e 57 Error *err = NULL;
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58
59 s->baudbase = 115200;
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60 serial_realize_core(s, &err);
61 if (err != NULL) {
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62 error_propagate(errp, err);
63 return;
db895a1e 64 }
419ad672 65
13cc2c3e 66 pci->dev.config[PCI_CLASS_PROG] = pci->prog_if;
419ad672 67 pci->dev.config[PCI_INTERRUPT_PIN] = 0x01;
9e64f8a3 68 s->irq = pci_allocate_irq(&pci->dev);
419ad672 69
300b1fc6 70 memory_region_init_io(&s->io, OBJECT(pci), &serial_io_ops, s, "serial", 8);
419ad672 71 pci_register_bar(&pci->dev, 0, PCI_BASE_ADDRESS_SPACE_IO, &s->io);
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72}
73
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74static void multi_serial_irq_mux(void *opaque, int n, int level)
75{
76 PCIMultiSerialState *pci = opaque;
77 int i, pending = 0;
78
79 pci->level[n] = level;
80 for (i = 0; i < pci->ports; i++) {
81 if (pci->level[i]) {
82 pending = 1;
83 }
84 }
9e64f8a3 85 pci_set_irq(&pci->dev, pending);
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86}
87
28d85904 88static void multi_serial_pci_realize(PCIDevice *dev, Error **errp)
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89{
90 PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(dev);
91 PCIMultiSerialState *pci = DO_UPCAST(PCIMultiSerialState, dev, dev);
92 SerialState *s;
db895a1e 93 Error *err = NULL;
a48da7b5 94 int i, nr_ports = 0;
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95
96 switch (pc->device_id) {
97 case 0x0003:
a48da7b5 98 nr_ports = 2;
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99 break;
100 case 0x0004:
a48da7b5 101 nr_ports = 4;
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102 break;
103 }
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104 assert(nr_ports > 0);
105 assert(nr_ports <= PCI_SERIAL_MAX_PORTS);
d66bbea4 106
13cc2c3e 107 pci->dev.config[PCI_CLASS_PROG] = pci->prog_if;
d66bbea4 108 pci->dev.config[PCI_INTERRUPT_PIN] = 0x01;
a48da7b5 109 memory_region_init(&pci->iobar, OBJECT(pci), "multiserial", 8 * nr_ports);
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110 pci_register_bar(&pci->dev, 0, PCI_BASE_ADDRESS_SPACE_IO, &pci->iobar);
111 pci->irqs = qemu_allocate_irqs(multi_serial_irq_mux, pci,
a48da7b5 112 nr_ports);
d66bbea4 113
a48da7b5 114 for (i = 0; i < nr_ports; i++) {
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115 s = pci->state + i;
116 s->baudbase = 115200;
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117 serial_realize_core(s, &err);
118 if (err != NULL) {
28d85904 119 error_propagate(errp, err);
a48da7b5 120 multi_serial_pci_exit(dev);
28d85904 121 return;
db895a1e 122 }
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123 s->irq = pci->irqs[i];
124 pci->name[i] = g_strdup_printf("uart #%d", i+1);
300b1fc6
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125 memory_region_init_io(&s->io, OBJECT(pci), &serial_io_ops, s,
126 pci->name[i], 8);
d66bbea4 127 memory_region_add_subregion(&pci->iobar, 8 * i, &s->io);
a48da7b5 128 pci->ports++;
d66bbea4 129 }
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130}
131
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132static void serial_pci_exit(PCIDevice *dev)
133{
134 PCISerialState *pci = DO_UPCAST(PCISerialState, dev, dev);
135 SerialState *s = &pci->state;
136
137 serial_exit_core(s);
9e64f8a3 138 qemu_free_irq(s->irq);
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139}
140
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141static void multi_serial_pci_exit(PCIDevice *dev)
142{
143 PCIMultiSerialState *pci = DO_UPCAST(PCIMultiSerialState, dev, dev);
144 SerialState *s;
145 int i;
146
147 for (i = 0; i < pci->ports; i++) {
148 s = pci->state + i;
149 serial_exit_core(s);
7497bce6 150 memory_region_del_subregion(&pci->iobar, &s->io);
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151 g_free(pci->name[i]);
152 }
f173d57a 153 qemu_free_irqs(pci->irqs, pci->ports);
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154}
155
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156static const VMStateDescription vmstate_pci_serial = {
157 .name = "pci-serial",
158 .version_id = 1,
159 .minimum_version_id = 1,
d49805ae 160 .fields = (VMStateField[]) {
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161 VMSTATE_PCI_DEVICE(dev, PCISerialState),
162 VMSTATE_STRUCT(state, PCISerialState, 0, vmstate_serial, SerialState),
163 VMSTATE_END_OF_LIST()
164 }
165};
166
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167static const VMStateDescription vmstate_pci_multi_serial = {
168 .name = "pci-serial-multi",
169 .version_id = 1,
170 .minimum_version_id = 1,
d49805ae 171 .fields = (VMStateField[]) {
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172 VMSTATE_PCI_DEVICE(dev, PCIMultiSerialState),
173 VMSTATE_STRUCT_ARRAY(state, PCIMultiSerialState, PCI_SERIAL_MAX_PORTS,
174 0, vmstate_serial, SerialState),
175 VMSTATE_UINT32_ARRAY(level, PCIMultiSerialState, PCI_SERIAL_MAX_PORTS),
176 VMSTATE_END_OF_LIST()
177 }
178};
179
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180static Property serial_pci_properties[] = {
181 DEFINE_PROP_CHR("chardev", PCISerialState, state.chr),
13cc2c3e 182 DEFINE_PROP_UINT8("prog_if", PCISerialState, prog_if, 0x02),
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183 DEFINE_PROP_END_OF_LIST(),
184};
185
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186static Property multi_2x_serial_pci_properties[] = {
187 DEFINE_PROP_CHR("chardev1", PCIMultiSerialState, state[0].chr),
188 DEFINE_PROP_CHR("chardev2", PCIMultiSerialState, state[1].chr),
13cc2c3e 189 DEFINE_PROP_UINT8("prog_if", PCIMultiSerialState, prog_if, 0x02),
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190 DEFINE_PROP_END_OF_LIST(),
191};
192
193static Property multi_4x_serial_pci_properties[] = {
194 DEFINE_PROP_CHR("chardev1", PCIMultiSerialState, state[0].chr),
195 DEFINE_PROP_CHR("chardev2", PCIMultiSerialState, state[1].chr),
196 DEFINE_PROP_CHR("chardev3", PCIMultiSerialState, state[2].chr),
197 DEFINE_PROP_CHR("chardev4", PCIMultiSerialState, state[3].chr),
13cc2c3e 198 DEFINE_PROP_UINT8("prog_if", PCIMultiSerialState, prog_if, 0x02),
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199 DEFINE_PROP_END_OF_LIST(),
200};
201
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202static void serial_pci_class_initfn(ObjectClass *klass, void *data)
203{
204 DeviceClass *dc = DEVICE_CLASS(klass);
205 PCIDeviceClass *pc = PCI_DEVICE_CLASS(klass);
28d85904 206 pc->realize = serial_pci_realize;
419ad672 207 pc->exit = serial_pci_exit;
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208 pc->vendor_id = PCI_VENDOR_ID_REDHAT;
209 pc->device_id = PCI_DEVICE_ID_REDHAT_SERIAL;
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210 pc->revision = 1;
211 pc->class_id = PCI_CLASS_COMMUNICATION_SERIAL;
212 dc->vmsd = &vmstate_pci_serial;
213 dc->props = serial_pci_properties;
125ee0ed 214 set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
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215}
216
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217static void multi_2x_serial_pci_class_initfn(ObjectClass *klass, void *data)
218{
219 DeviceClass *dc = DEVICE_CLASS(klass);
220 PCIDeviceClass *pc = PCI_DEVICE_CLASS(klass);
28d85904 221 pc->realize = multi_serial_pci_realize;
d66bbea4 222 pc->exit = multi_serial_pci_exit;
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223 pc->vendor_id = PCI_VENDOR_ID_REDHAT;
224 pc->device_id = PCI_DEVICE_ID_REDHAT_SERIAL2;
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225 pc->revision = 1;
226 pc->class_id = PCI_CLASS_COMMUNICATION_SERIAL;
227 dc->vmsd = &vmstate_pci_multi_serial;
228 dc->props = multi_2x_serial_pci_properties;
125ee0ed 229 set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
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230}
231
232static void multi_4x_serial_pci_class_initfn(ObjectClass *klass, void *data)
233{
234 DeviceClass *dc = DEVICE_CLASS(klass);
235 PCIDeviceClass *pc = PCI_DEVICE_CLASS(klass);
28d85904 236 pc->realize = multi_serial_pci_realize;
d66bbea4 237 pc->exit = multi_serial_pci_exit;
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238 pc->vendor_id = PCI_VENDOR_ID_REDHAT;
239 pc->device_id = PCI_DEVICE_ID_REDHAT_SERIAL4;
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240 pc->revision = 1;
241 pc->class_id = PCI_CLASS_COMMUNICATION_SERIAL;
242 dc->vmsd = &vmstate_pci_multi_serial;
243 dc->props = multi_4x_serial_pci_properties;
125ee0ed 244 set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
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245}
246
8c43a6f0 247static const TypeInfo serial_pci_info = {
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248 .name = "pci-serial",
249 .parent = TYPE_PCI_DEVICE,
250 .instance_size = sizeof(PCISerialState),
251 .class_init = serial_pci_class_initfn,
252};
253
8c43a6f0 254static const TypeInfo multi_2x_serial_pci_info = {
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255 .name = "pci-serial-2x",
256 .parent = TYPE_PCI_DEVICE,
257 .instance_size = sizeof(PCIMultiSerialState),
258 .class_init = multi_2x_serial_pci_class_initfn,
259};
260
8c43a6f0 261static const TypeInfo multi_4x_serial_pci_info = {
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262 .name = "pci-serial-4x",
263 .parent = TYPE_PCI_DEVICE,
264 .instance_size = sizeof(PCIMultiSerialState),
265 .class_init = multi_4x_serial_pci_class_initfn,
266};
267
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268static void serial_pci_register_types(void)
269{
270 type_register_static(&serial_pci_info);
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271 type_register_static(&multi_2x_serial_pci_info);
272 type_register_static(&multi_4x_serial_pci_info);
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273}
274
275type_init(serial_pci_register_types)
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