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
{
44 static void serial_pci_realize(PCIDevice
*dev
, Error
**errp
)
46 PCISerialState
*pci
= DO_UPCAST(PCISerialState
, dev
, dev
);
47 SerialState
*s
= &pci
->state
;
51 serial_realize_core(s
, &err
);
53 error_propagate(errp
, err
);
57 pci
->dev
.config
[PCI_CLASS_PROG
] = pci
->prog_if
;
58 pci
->dev
.config
[PCI_INTERRUPT_PIN
] = 0x01;
59 s
->irq
= pci_allocate_irq(&pci
->dev
);
61 memory_region_init_io(&s
->io
, OBJECT(pci
), &serial_io_ops
, s
, "serial", 8);
62 pci_register_bar(&pci
->dev
, 0, PCI_BASE_ADDRESS_SPACE_IO
, &s
->io
);
65 static void serial_pci_exit(PCIDevice
*dev
)
67 PCISerialState
*pci
= DO_UPCAST(PCISerialState
, dev
, dev
);
68 SerialState
*s
= &pci
->state
;
71 qemu_free_irq(s
->irq
);
74 static const VMStateDescription vmstate_pci_serial
= {
77 .minimum_version_id
= 1,
78 .fields
= (VMStateField
[]) {
79 VMSTATE_PCI_DEVICE(dev
, PCISerialState
),
80 VMSTATE_STRUCT(state
, PCISerialState
, 0, vmstate_serial
, SerialState
),
85 static Property serial_pci_properties
[] = {
86 DEFINE_PROP_CHR("chardev", PCISerialState
, state
.chr
),
87 DEFINE_PROP_UINT8("prog_if", PCISerialState
, prog_if
, 0x02),
88 DEFINE_PROP_END_OF_LIST(),
91 static void serial_pci_class_initfn(ObjectClass
*klass
, void *data
)
93 DeviceClass
*dc
= DEVICE_CLASS(klass
);
94 PCIDeviceClass
*pc
= PCI_DEVICE_CLASS(klass
);
95 pc
->realize
= serial_pci_realize
;
96 pc
->exit
= serial_pci_exit
;
97 pc
->vendor_id
= PCI_VENDOR_ID_REDHAT
;
98 pc
->device_id
= PCI_DEVICE_ID_REDHAT_SERIAL
;
100 pc
->class_id
= PCI_CLASS_COMMUNICATION_SERIAL
;
101 dc
->vmsd
= &vmstate_pci_serial
;
102 dc
->props
= serial_pci_properties
;
103 set_bit(DEVICE_CATEGORY_INPUT
, dc
->categories
);
106 static const TypeInfo serial_pci_info
= {
107 .name
= "pci-serial",
108 .parent
= TYPE_PCI_DEVICE
,
109 .instance_size
= sizeof(PCISerialState
),
110 .class_init
= serial_pci_class_initfn
,
111 .interfaces
= (InterfaceInfo
[]) {
112 { INTERFACE_CONVENTIONAL_PCI_DEVICE
},
117 static void serial_pci_register_types(void)
119 type_register_static(&serial_pci_info
);
122 type_init(serial_pci_register_types
)