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419ad672 GH |
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 | ||
90734e02 GH |
26 | /* see docs/specs/pci-serial.txt */ |
27 | ||
b6a0aa05 | 28 | #include "qemu/osdep.h" |
da34e65c | 29 | #include "qapi/error.h" |
0b8fa32f | 30 | #include "qemu/module.h" |
0d09e41a | 31 | #include "hw/char/serial.h" |
83c9f4ca | 32 | #include "hw/pci/pci.h" |
419ad672 GH |
33 | |
34 | typedef struct PCISerialState { | |
35 | PCIDevice dev; | |
36 | SerialState state; | |
13cc2c3e | 37 | uint8_t prog_if; |
419ad672 GH |
38 | } PCISerialState; |
39 | ||
a48da7b5 | 40 | |
28d85904 | 41 | static void serial_pci_realize(PCIDevice *dev, Error **errp) |
419ad672 GH |
42 | { |
43 | PCISerialState *pci = DO_UPCAST(PCISerialState, dev, dev); | |
44 | SerialState *s = &pci->state; | |
db895a1e | 45 | Error *err = NULL; |
419ad672 GH |
46 | |
47 | s->baudbase = 115200; | |
db895a1e AF |
48 | serial_realize_core(s, &err); |
49 | if (err != NULL) { | |
28d85904 MA |
50 | error_propagate(errp, err); |
51 | return; | |
db895a1e | 52 | } |
419ad672 | 53 | |
13cc2c3e | 54 | pci->dev.config[PCI_CLASS_PROG] = pci->prog_if; |
419ad672 | 55 | pci->dev.config[PCI_INTERRUPT_PIN] = 0x01; |
9e64f8a3 | 56 | s->irq = pci_allocate_irq(&pci->dev); |
419ad672 | 57 | |
300b1fc6 | 58 | memory_region_init_io(&s->io, OBJECT(pci), &serial_io_ops, s, "serial", 8); |
419ad672 | 59 | pci_register_bar(&pci->dev, 0, PCI_BASE_ADDRESS_SPACE_IO, &s->io); |
419ad672 GH |
60 | } |
61 | ||
62 | static void serial_pci_exit(PCIDevice *dev) | |
63 | { | |
64 | PCISerialState *pci = DO_UPCAST(PCISerialState, dev, dev); | |
65 | SerialState *s = &pci->state; | |
66 | ||
67 | serial_exit_core(s); | |
9e64f8a3 | 68 | qemu_free_irq(s->irq); |
419ad672 GH |
69 | } |
70 | ||
71 | static const VMStateDescription vmstate_pci_serial = { | |
72 | .name = "pci-serial", | |
73 | .version_id = 1, | |
74 | .minimum_version_id = 1, | |
d49805ae | 75 | .fields = (VMStateField[]) { |
419ad672 GH |
76 | VMSTATE_PCI_DEVICE(dev, PCISerialState), |
77 | VMSTATE_STRUCT(state, PCISerialState, 0, vmstate_serial, SerialState), | |
78 | VMSTATE_END_OF_LIST() | |
79 | } | |
80 | }; | |
81 | ||
82 | static Property serial_pci_properties[] = { | |
83 | DEFINE_PROP_CHR("chardev", PCISerialState, state.chr), | |
13cc2c3e | 84 | DEFINE_PROP_UINT8("prog_if", PCISerialState, prog_if, 0x02), |
419ad672 GH |
85 | DEFINE_PROP_END_OF_LIST(), |
86 | }; | |
87 | ||
88 | static void serial_pci_class_initfn(ObjectClass *klass, void *data) | |
89 | { | |
90 | DeviceClass *dc = DEVICE_CLASS(klass); | |
91 | PCIDeviceClass *pc = PCI_DEVICE_CLASS(klass); | |
28d85904 | 92 | pc->realize = serial_pci_realize; |
419ad672 | 93 | pc->exit = serial_pci_exit; |
5c03a254 PB |
94 | pc->vendor_id = PCI_VENDOR_ID_REDHAT; |
95 | pc->device_id = PCI_DEVICE_ID_REDHAT_SERIAL; | |
419ad672 GH |
96 | pc->revision = 1; |
97 | pc->class_id = PCI_CLASS_COMMUNICATION_SERIAL; | |
98 | dc->vmsd = &vmstate_pci_serial; | |
99 | dc->props = serial_pci_properties; | |
125ee0ed | 100 | set_bit(DEVICE_CATEGORY_INPUT, dc->categories); |
419ad672 GH |
101 | } |
102 | ||
8c43a6f0 | 103 | static const TypeInfo serial_pci_info = { |
419ad672 GH |
104 | .name = "pci-serial", |
105 | .parent = TYPE_PCI_DEVICE, | |
106 | .instance_size = sizeof(PCISerialState), | |
107 | .class_init = serial_pci_class_initfn, | |
fd3b02c8 EH |
108 | .interfaces = (InterfaceInfo[]) { |
109 | { INTERFACE_CONVENTIONAL_PCI_DEVICE }, | |
110 | { }, | |
111 | }, | |
419ad672 GH |
112 | }; |
113 | ||
114 | static void serial_pci_register_types(void) | |
115 | { | |
116 | type_register_static(&serial_pci_info); | |
117 | } | |
118 | ||
119 | type_init(serial_pci_register_types) |