2 * QEMU 16550A UART emulation
4 * Copyright (c) 2003-2004 Fabrice Bellard
5 * Copyright (c) 2008 Citrix Systems, Inc.
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:
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
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
26 /* see docs/specs/pci-serial.txt */
28 #include "qemu/osdep.h"
29 #include "qapi/error.h"
30 #include "qemu/module.h"
31 #include "hw/char/serial.h"
33 #include "hw/pci/pci.h"
34 #include "hw/qdev-properties.h"
35 #include "migration/vmstate.h"
37 typedef struct PCISerialState
{
43 #define TYPE_PCI_SERIAL "pci-serial"
44 #define PCI_SERIAL(s) OBJECT_CHECK(PCISerialState, (s), TYPE_PCI_SERIAL)
46 static void serial_pci_realize(PCIDevice
*dev
, Error
**errp
)
48 PCISerialState
*pci
= DO_UPCAST(PCISerialState
, dev
, dev
);
49 SerialState
*s
= &pci
->state
;
52 object_property_set_bool(OBJECT(s
), true, "realized", &err
);
54 error_propagate(errp
, err
);
58 pci
->dev
.config
[PCI_CLASS_PROG
] = pci
->prog_if
;
59 pci
->dev
.config
[PCI_INTERRUPT_PIN
] = 0x01;
60 s
->irq
= pci_allocate_irq(&pci
->dev
);
62 memory_region_init_io(&s
->io
, OBJECT(pci
), &serial_io_ops
, s
, "serial", 8);
63 pci_register_bar(&pci
->dev
, 0, PCI_BASE_ADDRESS_SPACE_IO
, &s
->io
);
66 static void serial_pci_exit(PCIDevice
*dev
)
68 PCISerialState
*pci
= DO_UPCAST(PCISerialState
, dev
, dev
);
69 SerialState
*s
= &pci
->state
;
71 object_property_set_bool(OBJECT(s
), false, "realized", NULL
);
72 qemu_free_irq(s
->irq
);
75 static const VMStateDescription vmstate_pci_serial
= {
78 .minimum_version_id
= 1,
79 .fields
= (VMStateField
[]) {
80 VMSTATE_PCI_DEVICE(dev
, PCISerialState
),
81 VMSTATE_STRUCT(state
, PCISerialState
, 0, vmstate_serial
, SerialState
),
86 static Property serial_pci_properties
[] = {
87 DEFINE_PROP_CHR("chardev", PCISerialState
, state
.chr
),
88 DEFINE_PROP_UINT8("prog_if", PCISerialState
, prog_if
, 0x02),
89 DEFINE_PROP_END_OF_LIST(),
92 static void serial_pci_class_initfn(ObjectClass
*klass
, void *data
)
94 DeviceClass
*dc
= DEVICE_CLASS(klass
);
95 PCIDeviceClass
*pc
= PCI_DEVICE_CLASS(klass
);
96 pc
->realize
= serial_pci_realize
;
97 pc
->exit
= serial_pci_exit
;
98 pc
->vendor_id
= PCI_VENDOR_ID_REDHAT
;
99 pc
->device_id
= PCI_DEVICE_ID_REDHAT_SERIAL
;
101 pc
->class_id
= PCI_CLASS_COMMUNICATION_SERIAL
;
102 dc
->vmsd
= &vmstate_pci_serial
;
103 device_class_set_props(dc
, serial_pci_properties
);
104 set_bit(DEVICE_CATEGORY_INPUT
, dc
->categories
);
107 static void serial_pci_init(Object
*o
)
109 PCISerialState
*ps
= PCI_SERIAL(o
);
111 object_initialize_child(o
, "serial", &ps
->state
, sizeof(ps
->state
),
112 TYPE_SERIAL
, &error_abort
, NULL
);
115 static const TypeInfo serial_pci_info
= {
116 .name
= TYPE_PCI_SERIAL
,
117 .parent
= TYPE_PCI_DEVICE
,
118 .instance_size
= sizeof(PCISerialState
),
119 .instance_init
= serial_pci_init
,
120 .class_init
= serial_pci_class_initfn
,
121 .interfaces
= (InterfaceInfo
[]) {
122 { INTERFACE_CONVENTIONAL_PCI_DEVICE
},
127 static void serial_pci_register_types(void)
129 type_register_static(&serial_pci_info
);
132 type_init(serial_pci_register_types
)