root / hw / ide / qdev.c @ 98f22dc1
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1 | da4d0419 | Gerd Hoffmann | /*
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2 | da4d0419 | Gerd Hoffmann | * ide bus support for qdev.
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3 | da4d0419 | Gerd Hoffmann | *
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4 | da4d0419 | Gerd Hoffmann | * Copyright (c) 2009 Gerd Hoffmann <kraxel@redhat.com>
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5 | da4d0419 | Gerd Hoffmann | *
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6 | da4d0419 | Gerd Hoffmann | * This library is free software; you can redistribute it and/or
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7 | da4d0419 | Gerd Hoffmann | * modify it under the terms of the GNU Lesser General Public
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8 | da4d0419 | Gerd Hoffmann | * License as published by the Free Software Foundation; either
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9 | da4d0419 | Gerd Hoffmann | * version 2 of the License, or (at your option) any later version.
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10 | da4d0419 | Gerd Hoffmann | *
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11 | da4d0419 | Gerd Hoffmann | * This library is distributed in the hope that it will be useful,
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12 | da4d0419 | Gerd Hoffmann | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | da4d0419 | Gerd Hoffmann | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 | da4d0419 | Gerd Hoffmann | * Lesser General Public License for more details.
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15 | da4d0419 | Gerd Hoffmann | *
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16 | da4d0419 | Gerd Hoffmann | * You should have received a copy of the GNU Lesser General Public
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17 | da4d0419 | Gerd Hoffmann | * License along with this library; if not, see <http://www.gnu.org/licenses/>.
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18 | da4d0419 | Gerd Hoffmann | */
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19 | da4d0419 | Gerd Hoffmann | #include <hw/hw.h> |
20 | da4d0419 | Gerd Hoffmann | #include "sysemu.h" |
21 | da4d0419 | Gerd Hoffmann | #include "dma.h" |
22 | da4d0419 | Gerd Hoffmann | |
23 | da4d0419 | Gerd Hoffmann | #include <hw/ide/internal.h> |
24 | da4d0419 | Gerd Hoffmann | |
25 | da4d0419 | Gerd Hoffmann | /* --------------------------------- */
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26 | da4d0419 | Gerd Hoffmann | |
27 | da4d0419 | Gerd Hoffmann | static struct BusInfo ide_bus_info = { |
28 | da4d0419 | Gerd Hoffmann | .name = "IDE",
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29 | da4d0419 | Gerd Hoffmann | .size = sizeof(IDEBus),
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30 | da4d0419 | Gerd Hoffmann | }; |
31 | da4d0419 | Gerd Hoffmann | |
32 | 1f850f10 | Gerd Hoffmann | void ide_bus_new(IDEBus *idebus, DeviceState *dev)
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33 | da4d0419 | Gerd Hoffmann | { |
34 | 1f850f10 | Gerd Hoffmann | qbus_create_inplace(&idebus->qbus, &ide_bus_info, dev, NULL);
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35 | da4d0419 | Gerd Hoffmann | } |
36 | da4d0419 | Gerd Hoffmann | |
37 | da4d0419 | Gerd Hoffmann | static int ide_qdev_init(DeviceState *qdev, DeviceInfo *base) |
38 | da4d0419 | Gerd Hoffmann | { |
39 | da4d0419 | Gerd Hoffmann | IDEDevice *dev = DO_UPCAST(IDEDevice, qdev, qdev); |
40 | da4d0419 | Gerd Hoffmann | IDEDeviceInfo *info = DO_UPCAST(IDEDeviceInfo, qdev, base); |
41 | da4d0419 | Gerd Hoffmann | IDEBus *bus = DO_UPCAST(IDEBus, qbus, qdev->parent_bus); |
42 | da4d0419 | Gerd Hoffmann | |
43 | 428c149b | Christoph Hellwig | if (!dev->conf.dinfo) {
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44 | da4d0419 | Gerd Hoffmann | fprintf(stderr, "%s: no drive specified\n", qdev->info->name);
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45 | da4d0419 | Gerd Hoffmann | goto err;
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46 | da4d0419 | Gerd Hoffmann | } |
47 | da4d0419 | Gerd Hoffmann | if (dev->unit == -1) { |
48 | da4d0419 | Gerd Hoffmann | dev->unit = bus->master ? 1 : 0; |
49 | da4d0419 | Gerd Hoffmann | } |
50 | da4d0419 | Gerd Hoffmann | switch (dev->unit) {
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51 | da4d0419 | Gerd Hoffmann | case 0: |
52 | da4d0419 | Gerd Hoffmann | if (bus->master) {
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53 | da4d0419 | Gerd Hoffmann | fprintf(stderr, "ide: tried to assign master twice\n");
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54 | da4d0419 | Gerd Hoffmann | goto err;
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55 | da4d0419 | Gerd Hoffmann | } |
56 | da4d0419 | Gerd Hoffmann | bus->master = dev; |
57 | da4d0419 | Gerd Hoffmann | break;
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58 | da4d0419 | Gerd Hoffmann | case 1: |
59 | da4d0419 | Gerd Hoffmann | if (bus->slave) {
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60 | da4d0419 | Gerd Hoffmann | fprintf(stderr, "ide: tried to assign slave twice\n");
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61 | da4d0419 | Gerd Hoffmann | goto err;
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62 | da4d0419 | Gerd Hoffmann | } |
63 | da4d0419 | Gerd Hoffmann | bus->slave = dev; |
64 | da4d0419 | Gerd Hoffmann | break;
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65 | da4d0419 | Gerd Hoffmann | default:
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66 | da4d0419 | Gerd Hoffmann | goto err;
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67 | da4d0419 | Gerd Hoffmann | } |
68 | da4d0419 | Gerd Hoffmann | return info->init(dev);
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69 | da4d0419 | Gerd Hoffmann | |
70 | da4d0419 | Gerd Hoffmann | err:
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71 | da4d0419 | Gerd Hoffmann | return -1; |
72 | da4d0419 | Gerd Hoffmann | } |
73 | da4d0419 | Gerd Hoffmann | |
74 | da4d0419 | Gerd Hoffmann | static void ide_qdev_register(IDEDeviceInfo *info) |
75 | da4d0419 | Gerd Hoffmann | { |
76 | da4d0419 | Gerd Hoffmann | info->qdev.init = ide_qdev_init; |
77 | da4d0419 | Gerd Hoffmann | info->qdev.bus_info = &ide_bus_info; |
78 | da4d0419 | Gerd Hoffmann | qdev_register(&info->qdev); |
79 | da4d0419 | Gerd Hoffmann | } |
80 | da4d0419 | Gerd Hoffmann | |
81 | da4d0419 | Gerd Hoffmann | IDEDevice *ide_create_drive(IDEBus *bus, int unit, DriveInfo *drive)
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82 | da4d0419 | Gerd Hoffmann | { |
83 | da4d0419 | Gerd Hoffmann | DeviceState *dev; |
84 | da4d0419 | Gerd Hoffmann | |
85 | da4d0419 | Gerd Hoffmann | dev = qdev_create(&bus->qbus, "ide-drive");
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86 | da4d0419 | Gerd Hoffmann | qdev_prop_set_uint32(dev, "unit", unit);
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87 | da4d0419 | Gerd Hoffmann | qdev_prop_set_drive(dev, "drive", drive);
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88 | 5c17ca25 | Markus Armbruster | if (qdev_init(dev) < 0) |
89 | da4d0419 | Gerd Hoffmann | return NULL; |
90 | da4d0419 | Gerd Hoffmann | return DO_UPCAST(IDEDevice, qdev, dev);
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91 | da4d0419 | Gerd Hoffmann | } |
92 | da4d0419 | Gerd Hoffmann | |
93 | da4d0419 | Gerd Hoffmann | /* --------------------------------- */
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94 | da4d0419 | Gerd Hoffmann | |
95 | da4d0419 | Gerd Hoffmann | typedef struct IDEDrive { |
96 | da4d0419 | Gerd Hoffmann | IDEDevice dev; |
97 | da4d0419 | Gerd Hoffmann | } IDEDrive; |
98 | da4d0419 | Gerd Hoffmann | |
99 | da4d0419 | Gerd Hoffmann | static int ide_drive_initfn(IDEDevice *dev) |
100 | da4d0419 | Gerd Hoffmann | { |
101 | da4d0419 | Gerd Hoffmann | IDEBus *bus = DO_UPCAST(IDEBus, qbus, dev->qdev.parent_bus); |
102 | 428c149b | Christoph Hellwig | ide_init_drive(bus->ifs + dev->unit, dev->conf.dinfo, &dev->conf, |
103 | 428c149b | Christoph Hellwig | dev->version); |
104 | da4d0419 | Gerd Hoffmann | return 0; |
105 | da4d0419 | Gerd Hoffmann | } |
106 | da4d0419 | Gerd Hoffmann | |
107 | da4d0419 | Gerd Hoffmann | static IDEDeviceInfo ide_drive_info = {
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108 | da4d0419 | Gerd Hoffmann | .qdev.name = "ide-drive",
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109 | da4d0419 | Gerd Hoffmann | .qdev.size = sizeof(IDEDrive),
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110 | da4d0419 | Gerd Hoffmann | .init = ide_drive_initfn, |
111 | da4d0419 | Gerd Hoffmann | .qdev.props = (Property[]) { |
112 | da4d0419 | Gerd Hoffmann | DEFINE_PROP_UINT32("unit", IDEDrive, dev.unit, -1), |
113 | 428c149b | Christoph Hellwig | DEFINE_BLOCK_PROPERTIES(IDEDrive, dev.conf), |
114 | 47c06340 | Gerd Hoffmann | DEFINE_PROP_STRING("ver", IDEDrive, dev.version),
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115 | da4d0419 | Gerd Hoffmann | DEFINE_PROP_END_OF_LIST(), |
116 | da4d0419 | Gerd Hoffmann | } |
117 | da4d0419 | Gerd Hoffmann | }; |
118 | da4d0419 | Gerd Hoffmann | |
119 | da4d0419 | Gerd Hoffmann | static void ide_drive_register(void) |
120 | da4d0419 | Gerd Hoffmann | { |
121 | da4d0419 | Gerd Hoffmann | ide_qdev_register(&ide_drive_info); |
122 | da4d0419 | Gerd Hoffmann | } |
123 | da4d0419 | Gerd Hoffmann | device_init(ide_drive_register); |