1419ad672SGerd Hoffmann /*
2419ad672SGerd Hoffmann * QEMU 16550A UART emulation
3419ad672SGerd Hoffmann *
4419ad672SGerd Hoffmann * Copyright (c) 2003-2004 Fabrice Bellard
5419ad672SGerd Hoffmann * Copyright (c) 2008 Citrix Systems, Inc.
6419ad672SGerd Hoffmann *
7419ad672SGerd Hoffmann * Permission is hereby granted, free of charge, to any person obtaining a copy
8419ad672SGerd Hoffmann * of this software and associated documentation files (the "Software"), to deal
9419ad672SGerd Hoffmann * in the Software without restriction, including without limitation the rights
10419ad672SGerd Hoffmann * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11419ad672SGerd Hoffmann * copies of the Software, and to permit persons to whom the Software is
12419ad672SGerd Hoffmann * furnished to do so, subject to the following conditions:
13419ad672SGerd Hoffmann *
14419ad672SGerd Hoffmann * The above copyright notice and this permission notice shall be included in
15419ad672SGerd Hoffmann * all copies or substantial portions of the Software.
16419ad672SGerd Hoffmann *
17419ad672SGerd Hoffmann * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18419ad672SGerd Hoffmann * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19419ad672SGerd Hoffmann * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20419ad672SGerd Hoffmann * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21419ad672SGerd Hoffmann * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22419ad672SGerd Hoffmann * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
23419ad672SGerd Hoffmann * THE SOFTWARE.
24419ad672SGerd Hoffmann */
25419ad672SGerd Hoffmann
263669b594SPeter Maydell /* see docs/specs/pci-serial.rst */
2790734e02SGerd Hoffmann
28b6a0aa05SPeter Maydell #include "qemu/osdep.h"
29da34e65cSMarkus Armbruster #include "qapi/error.h"
300b8fa32fSMarkus Armbruster #include "qemu/module.h"
310d09e41aSPaolo Bonzini #include "hw/char/serial.h"
3264552b6bSMarkus Armbruster #include "hw/irq.h"
33edf5ca5dSMarkus Armbruster #include "hw/pci/pci_device.h"
34a27bd6c7SMarkus Armbruster #include "hw/qdev-properties.h"
35d6454270SMarkus Armbruster #include "migration/vmstate.h"
36db1015e9SEduardo Habkost #include "qom/object.h"
37419ad672SGerd Hoffmann
38db1015e9SEduardo Habkost struct PCISerialState {
39419ad672SGerd Hoffmann PCIDevice dev;
40419ad672SGerd Hoffmann SerialState state;
41db1015e9SEduardo Habkost };
42419ad672SGerd Hoffmann
437781b88eSMarc-André Lureau #define TYPE_PCI_SERIAL "pci-serial"
OBJECT_DECLARE_SIMPLE_TYPE(PCISerialState,PCI_SERIAL)448063396bSEduardo Habkost OBJECT_DECLARE_SIMPLE_TYPE(PCISerialState, PCI_SERIAL)
45a48da7b5SGerd Hoffmann
4628d85904SMarkus Armbruster static void serial_pci_realize(PCIDevice *dev, Error **errp)
47419ad672SGerd Hoffmann {
48419ad672SGerd Hoffmann PCISerialState *pci = DO_UPCAST(PCISerialState, dev, dev);
49419ad672SGerd Hoffmann SerialState *s = &pci->state;
50419ad672SGerd Hoffmann
51668f62ecSMarkus Armbruster if (!qdev_realize(DEVICE(s), NULL, errp)) {
5228d85904SMarkus Armbruster return;
53db895a1eSAndreas Färber }
54419ad672SGerd Hoffmann
55*8dc4f981SBALATON Zoltan pci->dev.config[PCI_CLASS_PROG] = 2; /* 16550 compatible */
56*8dc4f981SBALATON Zoltan pci->dev.config[PCI_INTERRUPT_PIN] = 1;
579e64f8a3SMarcel Apfelbaum s->irq = pci_allocate_irq(&pci->dev);
58419ad672SGerd Hoffmann
59300b1fc6SPaolo Bonzini memory_region_init_io(&s->io, OBJECT(pci), &serial_io_ops, s, "serial", 8);
60419ad672SGerd Hoffmann pci_register_bar(&pci->dev, 0, PCI_BASE_ADDRESS_SPACE_IO, &s->io);
61419ad672SGerd Hoffmann }
62419ad672SGerd Hoffmann
serial_pci_exit(PCIDevice * dev)63419ad672SGerd Hoffmann static void serial_pci_exit(PCIDevice *dev)
64419ad672SGerd Hoffmann {
65419ad672SGerd Hoffmann PCISerialState *pci = DO_UPCAST(PCISerialState, dev, dev);
66419ad672SGerd Hoffmann SerialState *s = &pci->state;
67419ad672SGerd Hoffmann
68981c3dcdSMarkus Armbruster qdev_unrealize(DEVICE(s));
699e64f8a3SMarcel Apfelbaum qemu_free_irq(s->irq);
70419ad672SGerd Hoffmann }
71419ad672SGerd Hoffmann
72419ad672SGerd Hoffmann static const VMStateDescription vmstate_pci_serial = {
73419ad672SGerd Hoffmann .name = "pci-serial",
74419ad672SGerd Hoffmann .version_id = 1,
75419ad672SGerd Hoffmann .minimum_version_id = 1,
762f6cab05SRichard Henderson .fields = (const VMStateField[]) {
77419ad672SGerd Hoffmann VMSTATE_PCI_DEVICE(dev, PCISerialState),
78419ad672SGerd Hoffmann VMSTATE_STRUCT(state, PCISerialState, 0, vmstate_serial, SerialState),
79419ad672SGerd Hoffmann VMSTATE_END_OF_LIST()
80419ad672SGerd Hoffmann }
81419ad672SGerd Hoffmann };
82419ad672SGerd Hoffmann
serial_pci_class_initfn(ObjectClass * klass,const void * data)8312d1a768SPhilippe Mathieu-Daudé static void serial_pci_class_initfn(ObjectClass *klass, const void *data)
84419ad672SGerd Hoffmann {
85419ad672SGerd Hoffmann DeviceClass *dc = DEVICE_CLASS(klass);
86419ad672SGerd Hoffmann PCIDeviceClass *pc = PCI_DEVICE_CLASS(klass);
8728d85904SMarkus Armbruster pc->realize = serial_pci_realize;
88419ad672SGerd Hoffmann pc->exit = serial_pci_exit;
895c03a254SPaolo Bonzini pc->vendor_id = PCI_VENDOR_ID_REDHAT;
905c03a254SPaolo Bonzini pc->device_id = PCI_DEVICE_ID_REDHAT_SERIAL;
91419ad672SGerd Hoffmann pc->revision = 1;
92419ad672SGerd Hoffmann pc->class_id = PCI_CLASS_COMMUNICATION_SERIAL;
93419ad672SGerd Hoffmann dc->vmsd = &vmstate_pci_serial;
94125ee0edSMarcel Apfelbaum set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
95419ad672SGerd Hoffmann }
96419ad672SGerd Hoffmann
serial_pci_init(Object * o)977781b88eSMarc-André Lureau static void serial_pci_init(Object *o)
987781b88eSMarc-André Lureau {
997781b88eSMarc-André Lureau PCISerialState *ps = PCI_SERIAL(o);
1007781b88eSMarc-André Lureau
1019fc7fc4dSMarkus Armbruster object_initialize_child(o, "serial", &ps->state, TYPE_SERIAL);
102b7dd40d4SPhilippe Mathieu-Daudé
103b7dd40d4SPhilippe Mathieu-Daudé qdev_alias_all_properties(DEVICE(&ps->state), o);
1047781b88eSMarc-André Lureau }
1057781b88eSMarc-André Lureau
1068c43a6f0SAndreas Färber static const TypeInfo serial_pci_info = {
1077781b88eSMarc-André Lureau .name = TYPE_PCI_SERIAL,
108419ad672SGerd Hoffmann .parent = TYPE_PCI_DEVICE,
109419ad672SGerd Hoffmann .instance_size = sizeof(PCISerialState),
1107781b88eSMarc-André Lureau .instance_init = serial_pci_init,
111419ad672SGerd Hoffmann .class_init = serial_pci_class_initfn,
1122cd09e47SPhilippe Mathieu-Daudé .interfaces = (const InterfaceInfo[]) {
113fd3b02c8SEduardo Habkost { INTERFACE_CONVENTIONAL_PCI_DEVICE },
114fd3b02c8SEduardo Habkost { },
115fd3b02c8SEduardo Habkost },
116419ad672SGerd Hoffmann };
117419ad672SGerd Hoffmann
serial_pci_register_types(void)118419ad672SGerd Hoffmann static void serial_pci_register_types(void)
119419ad672SGerd Hoffmann {
120419ad672SGerd Hoffmann type_register_static(&serial_pci_info);
121419ad672SGerd Hoffmann }
122419ad672SGerd Hoffmann
123419ad672SGerd Hoffmann type_init(serial_pci_register_types)
124