1 | /* |
2 | * QEMU DEC 21154 PCI bridge |
3 | * |
4 | * Copyright (c) 2006-2007 Fabrice Bellard |
5 | * Copyright (c) 2007 Jocelyn Mayer |
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 | |
26 | #include "qemu/osdep.h" |
27 | #include "dec.h" |
28 | #include "hw/sysbus.h" |
29 | #include "qemu/module.h" |
30 | #include "hw/pci/pci.h" |
31 | #include "hw/pci/pci_host.h" |
32 | #include "hw/pci/pci_bridge.h" |
33 | #include "hw/pci/pci_bus.h" |
34 | |
35 | /* debug DEC */ |
36 | //#define DEBUG_DEC |
37 | |
38 | #ifdef DEBUG_DEC |
39 | #define DEC_DPRINTF(fmt, ...) \ |
40 | do { printf("DEC: " fmt , ## __VA_ARGS__); } while (0) |
41 | #else |
42 | #define DEC_DPRINTF(fmt, ...) |
43 | #endif |
44 | |
45 | #define DEC_21154(obj) OBJECT_CHECK(DECState, (obj), TYPE_DEC_21154) |
46 | |
47 | typedef struct DECState { |
48 | PCIHostState parent_obj; |
49 | } DECState; |
50 | |
51 | static int dec_map_irq(PCIDevice *pci_dev, int irq_num) |
52 | { |
53 | return irq_num; |
54 | } |
55 | |
56 | static void dec_pci_bridge_realize(PCIDevice *pci_dev, Error **errp) |
57 | { |
58 | pci_bridge_initfn(pci_dev, TYPE_PCI_BUS); |
59 | } |
60 | |
61 | static void dec_21154_pci_bridge_class_init(ObjectClass *klass, void *data) |
62 | { |
63 | DeviceClass *dc = DEVICE_CLASS(klass); |
64 | PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); |
65 | |
66 | set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories); |
67 | k->realize = dec_pci_bridge_realize; |
68 | k->exit = pci_bridge_exitfn; |
69 | k->vendor_id = PCI_VENDOR_ID_DEC; |
70 | k->device_id = PCI_DEVICE_ID_DEC_21154; |
71 | k->config_write = pci_bridge_write_config; |
72 | k->is_bridge = true; |
73 | dc->desc = "DEC 21154 PCI-PCI bridge" ; |
74 | dc->reset = pci_bridge_reset; |
75 | dc->vmsd = &vmstate_pci_device; |
76 | } |
77 | |
78 | static const TypeInfo dec_21154_pci_bridge_info = { |
79 | .name = "dec-21154-p2p-bridge" , |
80 | .parent = TYPE_PCI_BRIDGE, |
81 | .instance_size = sizeof(PCIBridge), |
82 | .class_init = dec_21154_pci_bridge_class_init, |
83 | .interfaces = (InterfaceInfo[]) { |
84 | { INTERFACE_CONVENTIONAL_PCI_DEVICE }, |
85 | { }, |
86 | }, |
87 | }; |
88 | |
89 | PCIBus *pci_dec_21154_init(PCIBus *parent_bus, int devfn) |
90 | { |
91 | PCIDevice *dev; |
92 | PCIBridge *br; |
93 | |
94 | dev = pci_create_multifunction(parent_bus, devfn, false, |
95 | "dec-21154-p2p-bridge" ); |
96 | br = PCI_BRIDGE(dev); |
97 | pci_bridge_map_irq(br, "DEC 21154 PCI-PCI bridge" , dec_map_irq); |
98 | qdev_init_nofail(&dev->qdev); |
99 | return pci_bridge_get_sec_bus(br); |
100 | } |
101 | |
102 | static void pci_dec_21154_device_realize(DeviceState *dev, Error **errp) |
103 | { |
104 | PCIHostState *phb; |
105 | SysBusDevice *sbd = SYS_BUS_DEVICE(dev); |
106 | |
107 | phb = PCI_HOST_BRIDGE(dev); |
108 | |
109 | memory_region_init_io(&phb->conf_mem, OBJECT(dev), &pci_host_conf_le_ops, |
110 | dev, "pci-conf-idx" , 0x1000); |
111 | memory_region_init_io(&phb->data_mem, OBJECT(dev), &pci_host_data_le_ops, |
112 | dev, "pci-data-idx" , 0x1000); |
113 | sysbus_init_mmio(sbd, &phb->conf_mem); |
114 | sysbus_init_mmio(sbd, &phb->data_mem); |
115 | } |
116 | |
117 | static void dec_21154_pci_host_realize(PCIDevice *d, Error **errp) |
118 | { |
119 | /* PCI2PCI bridge same values as PearPC - check this */ |
120 | } |
121 | |
122 | static void dec_21154_pci_host_class_init(ObjectClass *klass, void *data) |
123 | { |
124 | PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); |
125 | DeviceClass *dc = DEVICE_CLASS(klass); |
126 | |
127 | set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories); |
128 | k->realize = dec_21154_pci_host_realize; |
129 | k->vendor_id = PCI_VENDOR_ID_DEC; |
130 | k->device_id = PCI_DEVICE_ID_DEC_21154; |
131 | k->revision = 0x02; |
132 | k->class_id = PCI_CLASS_BRIDGE_PCI; |
133 | k->is_bridge = true; |
134 | /* |
135 | * PCI-facing part of the host bridge, not usable without the |
136 | * host-facing part, which can't be device_add'ed, yet. |
137 | */ |
138 | dc->user_creatable = false; |
139 | } |
140 | |
141 | static const TypeInfo dec_21154_pci_host_info = { |
142 | .name = "dec-21154" , |
143 | .parent = TYPE_PCI_DEVICE, |
144 | .instance_size = sizeof(PCIDevice), |
145 | .class_init = dec_21154_pci_host_class_init, |
146 | .interfaces = (InterfaceInfo[]) { |
147 | { INTERFACE_CONVENTIONAL_PCI_DEVICE }, |
148 | { }, |
149 | }, |
150 | }; |
151 | |
152 | static void pci_dec_21154_device_class_init(ObjectClass *klass, void *data) |
153 | { |
154 | DeviceClass *dc = DEVICE_CLASS(klass); |
155 | |
156 | dc->realize = pci_dec_21154_device_realize; |
157 | } |
158 | |
159 | static const TypeInfo pci_dec_21154_device_info = { |
160 | .name = TYPE_DEC_21154, |
161 | .parent = TYPE_PCI_HOST_BRIDGE, |
162 | .instance_size = sizeof(DECState), |
163 | .class_init = pci_dec_21154_device_class_init, |
164 | }; |
165 | |
166 | static void dec_register_types(void) |
167 | { |
168 | type_register_static(&pci_dec_21154_device_info); |
169 | type_register_static(&dec_21154_pci_host_info); |
170 | type_register_static(&dec_21154_pci_bridge_info); |
171 | } |
172 | |
173 | type_init(dec_register_types) |
174 | |