2 * QEMU DEC 21154 PCI bridge
4 * Copyright (c) 2006-2007 Fabrice Bellard
5 * Copyright (c) 2007 Jocelyn Mayer
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 #include "qemu/osdep.h"
28 #include "hw/sysbus.h"
29 #include "qapi/error.h"
30 #include "qemu/module.h"
31 #include "hw/pci/pci.h"
32 #include "hw/pci/pci_host.h"
33 #include "hw/pci/pci_bridge.h"
34 #include "hw/pci/pci_bus.h"
35 #include "qom/object.h"
37 typedef struct DECState DECState
;
38 DECLARE_INSTANCE_CHECKER(DECState
, DEC_21154
,
42 PCIHostState parent_obj
;
45 static int dec_map_irq(PCIDevice
*pci_dev
, int irq_num
)
50 static void dec_pci_bridge_realize(PCIDevice
*pci_dev
, Error
**errp
)
52 pci_bridge_initfn(pci_dev
, TYPE_PCI_BUS
);
55 static void dec_21154_pci_bridge_class_init(ObjectClass
*klass
, void *data
)
57 DeviceClass
*dc
= DEVICE_CLASS(klass
);
58 PCIDeviceClass
*k
= PCI_DEVICE_CLASS(klass
);
60 set_bit(DEVICE_CATEGORY_BRIDGE
, dc
->categories
);
61 k
->realize
= dec_pci_bridge_realize
;
62 k
->exit
= pci_bridge_exitfn
;
63 k
->vendor_id
= PCI_VENDOR_ID_DEC
;
64 k
->device_id
= PCI_DEVICE_ID_DEC_21154
;
65 k
->config_write
= pci_bridge_write_config
;
67 dc
->desc
= "DEC 21154 PCI-PCI bridge";
68 dc
->reset
= pci_bridge_reset
;
69 dc
->vmsd
= &vmstate_pci_device
;
72 static const TypeInfo dec_21154_pci_bridge_info
= {
73 .name
= "dec-21154-p2p-bridge",
74 .parent
= TYPE_PCI_BRIDGE
,
75 .instance_size
= sizeof(PCIBridge
),
76 .class_init
= dec_21154_pci_bridge_class_init
,
77 .interfaces
= (InterfaceInfo
[]) {
78 { INTERFACE_CONVENTIONAL_PCI_DEVICE
},
83 PCIBus
*pci_dec_21154_init(PCIBus
*parent_bus
, int devfn
)
88 dev
= pci_new_multifunction(devfn
, false, "dec-21154-p2p-bridge");
90 pci_bridge_map_irq(br
, "DEC 21154 PCI-PCI bridge", dec_map_irq
);
91 pci_realize_and_unref(dev
, parent_bus
, &error_fatal
);
92 return pci_bridge_get_sec_bus(br
);
95 static void pci_dec_21154_device_realize(DeviceState
*dev
, Error
**errp
)
98 SysBusDevice
*sbd
= SYS_BUS_DEVICE(dev
);
100 phb
= PCI_HOST_BRIDGE(dev
);
102 memory_region_init_io(&phb
->conf_mem
, OBJECT(dev
), &pci_host_conf_le_ops
,
103 dev
, "pci-conf-idx", 0x1000);
104 memory_region_init_io(&phb
->data_mem
, OBJECT(dev
), &pci_host_data_le_ops
,
105 dev
, "pci-data-idx", 0x1000);
106 sysbus_init_mmio(sbd
, &phb
->conf_mem
);
107 sysbus_init_mmio(sbd
, &phb
->data_mem
);
110 static void dec_21154_pci_host_realize(PCIDevice
*d
, Error
**errp
)
112 /* PCI2PCI bridge same values as PearPC - check this */
115 static void dec_21154_pci_host_class_init(ObjectClass
*klass
, void *data
)
117 PCIDeviceClass
*k
= PCI_DEVICE_CLASS(klass
);
118 DeviceClass
*dc
= DEVICE_CLASS(klass
);
120 set_bit(DEVICE_CATEGORY_BRIDGE
, dc
->categories
);
121 k
->realize
= dec_21154_pci_host_realize
;
122 k
->vendor_id
= PCI_VENDOR_ID_DEC
;
123 k
->device_id
= PCI_DEVICE_ID_DEC_21154
;
125 k
->class_id
= PCI_CLASS_BRIDGE_PCI
;
128 * PCI-facing part of the host bridge, not usable without the
129 * host-facing part, which can't be device_add'ed, yet.
131 dc
->user_creatable
= false;
134 static const TypeInfo dec_21154_pci_host_info
= {
136 .parent
= TYPE_PCI_DEVICE
,
137 .instance_size
= sizeof(PCIDevice
),
138 .class_init
= dec_21154_pci_host_class_init
,
139 .interfaces
= (InterfaceInfo
[]) {
140 { INTERFACE_CONVENTIONAL_PCI_DEVICE
},
145 static void pci_dec_21154_device_class_init(ObjectClass
*klass
, void *data
)
147 DeviceClass
*dc
= DEVICE_CLASS(klass
);
149 dc
->realize
= pci_dec_21154_device_realize
;
152 static const TypeInfo pci_dec_21154_device_info
= {
153 .name
= TYPE_DEC_21154
,
154 .parent
= TYPE_PCI_HOST_BRIDGE
,
155 .instance_size
= sizeof(DECState
),
156 .class_init
= pci_dec_21154_device_class_init
,
159 static void dec_register_types(void)
161 type_register_static(&pci_dec_21154_device_info
);
162 type_register_static(&dec_21154_pci_host_info
);
163 type_register_static(&dec_21154_pci_bridge_info
);
166 type_init(dec_register_types
)