root / hw / dec_pci.c @ 258dc7c9
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1 | e1c6bbab | Blue Swirl | /*
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2 | e1c6bbab | Blue Swirl | * QEMU DEC 21154 PCI bridge
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3 | e1c6bbab | Blue Swirl | *
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4 | e1c6bbab | Blue Swirl | * Copyright (c) 2006-2007 Fabrice Bellard
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5 | e1c6bbab | Blue Swirl | * Copyright (c) 2007 Jocelyn Mayer
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6 | e1c6bbab | Blue Swirl | *
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7 | e1c6bbab | Blue Swirl | * Permission is hereby granted, free of charge, to any person obtaining a copy
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8 | e1c6bbab | Blue Swirl | * of this software and associated documentation files (the "Software"), to deal
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9 | e1c6bbab | Blue Swirl | * in the Software without restriction, including without limitation the rights
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10 | e1c6bbab | Blue Swirl | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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11 | e1c6bbab | Blue Swirl | * copies of the Software, and to permit persons to whom the Software is
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12 | e1c6bbab | Blue Swirl | * furnished to do so, subject to the following conditions:
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13 | e1c6bbab | Blue Swirl | *
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14 | e1c6bbab | Blue Swirl | * The above copyright notice and this permission notice shall be included in
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15 | e1c6bbab | Blue Swirl | * all copies or substantial portions of the Software.
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16 | e1c6bbab | Blue Swirl | *
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17 | e1c6bbab | Blue Swirl | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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18 | e1c6bbab | Blue Swirl | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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19 | e1c6bbab | Blue Swirl | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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20 | e1c6bbab | Blue Swirl | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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21 | e1c6bbab | Blue Swirl | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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22 | e1c6bbab | Blue Swirl | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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23 | e1c6bbab | Blue Swirl | * THE SOFTWARE.
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24 | e1c6bbab | Blue Swirl | */
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25 | e1c6bbab | Blue Swirl | |
26 | d55380bb | Blue Swirl | #include "dec_pci.h" |
27 | e1c6bbab | Blue Swirl | #include "sysbus.h" |
28 | e1c6bbab | Blue Swirl | #include "pci.h" |
29 | e1c6bbab | Blue Swirl | #include "pci_host.h" |
30 | e1c6bbab | Blue Swirl | |
31 | e1c6bbab | Blue Swirl | /* debug DEC */
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32 | e1c6bbab | Blue Swirl | //#define DEBUG_DEC
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33 | e1c6bbab | Blue Swirl | |
34 | e1c6bbab | Blue Swirl | #ifdef DEBUG_DEC
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35 | e1c6bbab | Blue Swirl | #define DEC_DPRINTF(fmt, ...) \
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36 | e1c6bbab | Blue Swirl | do { printf("DEC: " fmt , ## __VA_ARGS__); } while (0) |
37 | e1c6bbab | Blue Swirl | #else
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38 | e1c6bbab | Blue Swirl | #define DEC_DPRINTF(fmt, ...)
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39 | e1c6bbab | Blue Swirl | #endif
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40 | e1c6bbab | Blue Swirl | |
41 | e1c6bbab | Blue Swirl | typedef struct DECState { |
42 | e1c6bbab | Blue Swirl | SysBusDevice busdev; |
43 | e1c6bbab | Blue Swirl | PCIHostState host_state; |
44 | e1c6bbab | Blue Swirl | } DECState; |
45 | e1c6bbab | Blue Swirl | |
46 | d55380bb | Blue Swirl | static int dec_map_irq(PCIDevice *pci_dev, int irq_num) |
47 | d55380bb | Blue Swirl | { |
48 | d55380bb | Blue Swirl | return irq_num;
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49 | d55380bb | Blue Swirl | } |
50 | d55380bb | Blue Swirl | |
51 | d55380bb | Blue Swirl | PCIBus *pci_dec_21154_init(PCIBus *parent_bus, int devfn)
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52 | d55380bb | Blue Swirl | { |
53 | d55380bb | Blue Swirl | DeviceState *dev; |
54 | d55380bb | Blue Swirl | PCIBus *ret; |
55 | d55380bb | Blue Swirl | |
56 | d55380bb | Blue Swirl | dev = qdev_create(NULL, "dec-21154"); |
57 | d55380bb | Blue Swirl | qdev_init_nofail(dev); |
58 | 7c7b829e | Isaku Yamahata | ret = pci_bridge_init(parent_bus, devfn, false,
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59 | d55380bb | Blue Swirl | PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_21154, |
60 | d55380bb | Blue Swirl | dec_map_irq, "DEC 21154 PCI-PCI bridge");
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61 | d55380bb | Blue Swirl | |
62 | d55380bb | Blue Swirl | return ret;
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63 | d55380bb | Blue Swirl | } |
64 | d55380bb | Blue Swirl | |
65 | e1c6bbab | Blue Swirl | static int pci_dec_21154_init_device(SysBusDevice *dev) |
66 | e1c6bbab | Blue Swirl | { |
67 | e1c6bbab | Blue Swirl | DECState *s; |
68 | e1c6bbab | Blue Swirl | int pci_mem_config, pci_mem_data;
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69 | e1c6bbab | Blue Swirl | |
70 | e1c6bbab | Blue Swirl | s = FROM_SYSBUS(DECState, dev); |
71 | e1c6bbab | Blue Swirl | |
72 | 952760bb | Blue Swirl | pci_mem_config = pci_host_conf_register_mmio(&s->host_state, 1);
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73 | 952760bb | Blue Swirl | pci_mem_data = pci_host_data_register_mmio(&s->host_state, 1);
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74 | e1c6bbab | Blue Swirl | sysbus_init_mmio(dev, 0x1000, pci_mem_config);
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75 | e1c6bbab | Blue Swirl | sysbus_init_mmio(dev, 0x1000, pci_mem_data);
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76 | e1c6bbab | Blue Swirl | return 0; |
77 | e1c6bbab | Blue Swirl | } |
78 | e1c6bbab | Blue Swirl | |
79 | e1c6bbab | Blue Swirl | static int dec_21154_pci_host_init(PCIDevice *d) |
80 | e1c6bbab | Blue Swirl | { |
81 | e1c6bbab | Blue Swirl | /* PCI2PCI bridge same values as PearPC - check this */
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82 | e1c6bbab | Blue Swirl | pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_DEC); |
83 | e1c6bbab | Blue Swirl | pci_config_set_device_id(d->config, PCI_DEVICE_ID_DEC_21154); |
84 | 204ff571 | Blue Swirl | pci_set_byte(d->config + PCI_REVISION_ID, 0x02);
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85 | e1c6bbab | Blue Swirl | pci_config_set_class(d->config, PCI_CLASS_BRIDGE_PCI); |
86 | e1c6bbab | Blue Swirl | return 0; |
87 | e1c6bbab | Blue Swirl | } |
88 | e1c6bbab | Blue Swirl | |
89 | e1c6bbab | Blue Swirl | static PCIDeviceInfo dec_21154_pci_host_info = {
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90 | e1c6bbab | Blue Swirl | .qdev.name = "dec-21154",
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91 | e1c6bbab | Blue Swirl | .qdev.size = sizeof(PCIDevice),
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92 | e1c6bbab | Blue Swirl | .init = dec_21154_pci_host_init, |
93 | e327e323 | Isaku Yamahata | .is_bridge = 1,
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94 | e1c6bbab | Blue Swirl | }; |
95 | e1c6bbab | Blue Swirl | |
96 | e1c6bbab | Blue Swirl | static void dec_register_devices(void) |
97 | e1c6bbab | Blue Swirl | { |
98 | e1c6bbab | Blue Swirl | sysbus_register_dev("dec-21154", sizeof(DECState), |
99 | e1c6bbab | Blue Swirl | pci_dec_21154_init_device); |
100 | e1c6bbab | Blue Swirl | pci_qdev_register(&dec_21154_pci_host_info); |
101 | e1c6bbab | Blue Swirl | } |
102 | e1c6bbab | Blue Swirl | |
103 | e1c6bbab | Blue Swirl | device_init(dec_register_devices) |