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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 | ||
d55380bb | 26 | #include "dec_pci.h" |
e1c6bbab BS |
27 | #include "sysbus.h" |
28 | #include "pci.h" | |
29 | #include "pci_host.h" | |
30 | ||
31 | /* debug DEC */ | |
32 | //#define DEBUG_DEC | |
33 | ||
34 | #ifdef DEBUG_DEC | |
35 | #define DEC_DPRINTF(fmt, ...) \ | |
36 | do { printf("DEC: " fmt , ## __VA_ARGS__); } while (0) | |
37 | #else | |
38 | #define DEC_DPRINTF(fmt, ...) | |
39 | #endif | |
40 | ||
41 | typedef struct DECState { | |
42 | SysBusDevice busdev; | |
43 | PCIHostState host_state; | |
44 | } DECState; | |
45 | ||
d55380bb BS |
46 | static int dec_map_irq(PCIDevice *pci_dev, int irq_num) |
47 | { | |
48 | return irq_num; | |
49 | } | |
50 | ||
51 | PCIBus *pci_dec_21154_init(PCIBus *parent_bus, int devfn) | |
52 | { | |
53 | DeviceState *dev; | |
54 | PCIBus *ret; | |
55 | ||
56 | dev = qdev_create(NULL, "dec-21154"); | |
57 | qdev_init_nofail(dev); | |
58 | ret = pci_bridge_init(parent_bus, devfn, | |
59 | PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_21154, | |
60 | dec_map_irq, "DEC 21154 PCI-PCI bridge"); | |
61 | ||
62 | return ret; | |
63 | } | |
64 | ||
e1c6bbab BS |
65 | static int pci_dec_21154_init_device(SysBusDevice *dev) |
66 | { | |
67 | DECState *s; | |
68 | int pci_mem_config, pci_mem_data; | |
69 | ||
70 | s = FROM_SYSBUS(DECState, dev); | |
71 | ||
72 | pci_mem_config = pci_host_conf_register_mmio(&s->host_state); | |
73 | pci_mem_data = pci_host_data_register_mmio(&s->host_state); | |
74 | sysbus_init_mmio(dev, 0x1000, pci_mem_config); | |
75 | sysbus_init_mmio(dev, 0x1000, pci_mem_data); | |
76 | return 0; | |
77 | } | |
78 | ||
79 | static int dec_21154_pci_host_init(PCIDevice *d) | |
80 | { | |
81 | /* PCI2PCI bridge same values as PearPC - check this */ | |
82 | pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_DEC); | |
83 | pci_config_set_device_id(d->config, PCI_DEVICE_ID_DEC_21154); | |
204ff571 | 84 | pci_set_byte(d->config + PCI_REVISION_ID, 0x02); |
e1c6bbab | 85 | pci_config_set_class(d->config, PCI_CLASS_BRIDGE_PCI); |
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86 | return 0; |
87 | } | |
88 | ||
89 | static PCIDeviceInfo dec_21154_pci_host_info = { | |
90 | .qdev.name = "dec-21154", | |
91 | .qdev.size = sizeof(PCIDevice), | |
92 | .init = dec_21154_pci_host_init, | |
93 | .header_type = PCI_HEADER_TYPE_BRIDGE, | |
94 | }; | |
95 | ||
96 | static void dec_register_devices(void) | |
97 | { | |
98 | sysbus_register_dev("dec-21154", sizeof(DECState), | |
99 | pci_dec_21154_init_device); | |
100 | pci_qdev_register(&dec_21154_pci_host_info); | |
101 | } | |
102 | ||
103 | device_init(dec_register_devices) |