root / hw / ide / qdev.c @ 18846dee
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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 "dma.h" |
21 | da4d0419 | Gerd Hoffmann | |
22 | da4d0419 | Gerd Hoffmann | #include <hw/ide/internal.h> |
23 | da4d0419 | Gerd Hoffmann | |
24 | da4d0419 | Gerd Hoffmann | /* --------------------------------- */
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25 | da4d0419 | Gerd Hoffmann | |
26 | da4d0419 | Gerd Hoffmann | static struct BusInfo ide_bus_info = { |
27 | da4d0419 | Gerd Hoffmann | .name = "IDE",
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28 | da4d0419 | Gerd Hoffmann | .size = sizeof(IDEBus),
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29 | da4d0419 | Gerd Hoffmann | }; |
30 | da4d0419 | Gerd Hoffmann | |
31 | 1f850f10 | Gerd Hoffmann | void ide_bus_new(IDEBus *idebus, DeviceState *dev)
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32 | da4d0419 | Gerd Hoffmann | { |
33 | 1f850f10 | Gerd Hoffmann | qbus_create_inplace(&idebus->qbus, &ide_bus_info, dev, NULL);
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34 | da4d0419 | Gerd Hoffmann | } |
35 | da4d0419 | Gerd Hoffmann | |
36 | da4d0419 | Gerd Hoffmann | static int ide_qdev_init(DeviceState *qdev, DeviceInfo *base) |
37 | da4d0419 | Gerd Hoffmann | { |
38 | da4d0419 | Gerd Hoffmann | IDEDevice *dev = DO_UPCAST(IDEDevice, qdev, qdev); |
39 | da4d0419 | Gerd Hoffmann | IDEDeviceInfo *info = DO_UPCAST(IDEDeviceInfo, qdev, base); |
40 | da4d0419 | Gerd Hoffmann | IDEBus *bus = DO_UPCAST(IDEBus, qbus, qdev->parent_bus); |
41 | da4d0419 | Gerd Hoffmann | |
42 | f8b6cc00 | Markus Armbruster | if (!dev->conf.bs) {
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43 | da4d0419 | Gerd Hoffmann | fprintf(stderr, "%s: no drive specified\n", qdev->info->name);
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44 | da4d0419 | Gerd Hoffmann | goto err;
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45 | da4d0419 | Gerd Hoffmann | } |
46 | da4d0419 | Gerd Hoffmann | if (dev->unit == -1) { |
47 | da4d0419 | Gerd Hoffmann | dev->unit = bus->master ? 1 : 0; |
48 | da4d0419 | Gerd Hoffmann | } |
49 | da4d0419 | Gerd Hoffmann | switch (dev->unit) {
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50 | da4d0419 | Gerd Hoffmann | case 0: |
51 | da4d0419 | Gerd Hoffmann | if (bus->master) {
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52 | da4d0419 | Gerd Hoffmann | fprintf(stderr, "ide: tried to assign master twice\n");
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53 | da4d0419 | Gerd Hoffmann | goto err;
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54 | da4d0419 | Gerd Hoffmann | } |
55 | da4d0419 | Gerd Hoffmann | bus->master = dev; |
56 | da4d0419 | Gerd Hoffmann | break;
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57 | da4d0419 | Gerd Hoffmann | case 1: |
58 | da4d0419 | Gerd Hoffmann | if (bus->slave) {
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59 | da4d0419 | Gerd Hoffmann | fprintf(stderr, "ide: tried to assign slave twice\n");
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60 | da4d0419 | Gerd Hoffmann | goto err;
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61 | da4d0419 | Gerd Hoffmann | } |
62 | da4d0419 | Gerd Hoffmann | bus->slave = dev; |
63 | da4d0419 | Gerd Hoffmann | break;
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64 | da4d0419 | Gerd Hoffmann | default:
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65 | da4d0419 | Gerd Hoffmann | goto err;
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66 | da4d0419 | Gerd Hoffmann | } |
67 | da4d0419 | Gerd Hoffmann | return info->init(dev);
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68 | da4d0419 | Gerd Hoffmann | |
69 | da4d0419 | Gerd Hoffmann | err:
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70 | da4d0419 | Gerd Hoffmann | return -1; |
71 | da4d0419 | Gerd Hoffmann | } |
72 | da4d0419 | Gerd Hoffmann | |
73 | da4d0419 | Gerd Hoffmann | static void ide_qdev_register(IDEDeviceInfo *info) |
74 | da4d0419 | Gerd Hoffmann | { |
75 | da4d0419 | Gerd Hoffmann | info->qdev.init = ide_qdev_init; |
76 | da4d0419 | Gerd Hoffmann | info->qdev.bus_info = &ide_bus_info; |
77 | da4d0419 | Gerd Hoffmann | qdev_register(&info->qdev); |
78 | da4d0419 | Gerd Hoffmann | } |
79 | da4d0419 | Gerd Hoffmann | |
80 | da4d0419 | Gerd Hoffmann | IDEDevice *ide_create_drive(IDEBus *bus, int unit, DriveInfo *drive)
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81 | da4d0419 | Gerd Hoffmann | { |
82 | da4d0419 | Gerd Hoffmann | DeviceState *dev; |
83 | da4d0419 | Gerd Hoffmann | |
84 | da4d0419 | Gerd Hoffmann | dev = qdev_create(&bus->qbus, "ide-drive");
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85 | da4d0419 | Gerd Hoffmann | qdev_prop_set_uint32(dev, "unit", unit);
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86 | 18846dee | Markus Armbruster | qdev_prop_set_drive_nofail(dev, "drive", drive->bdrv);
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87 | fa12fbbe | Markus Armbruster | qdev_init_nofail(dev); |
88 | da4d0419 | Gerd Hoffmann | return DO_UPCAST(IDEDevice, qdev, dev);
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89 | da4d0419 | Gerd Hoffmann | } |
90 | da4d0419 | Gerd Hoffmann | |
91 | da4d0419 | Gerd Hoffmann | /* --------------------------------- */
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92 | da4d0419 | Gerd Hoffmann | |
93 | da4d0419 | Gerd Hoffmann | typedef struct IDEDrive { |
94 | da4d0419 | Gerd Hoffmann | IDEDevice dev; |
95 | da4d0419 | Gerd Hoffmann | } IDEDrive; |
96 | da4d0419 | Gerd Hoffmann | |
97 | da4d0419 | Gerd Hoffmann | static int ide_drive_initfn(IDEDevice *dev) |
98 | da4d0419 | Gerd Hoffmann | { |
99 | da4d0419 | Gerd Hoffmann | IDEBus *bus = DO_UPCAST(IDEBus, qbus, dev->qdev.parent_bus); |
100 | 6ced55a5 | Markus Armbruster | IDEState *s = bus->ifs + dev->unit; |
101 | 6ced55a5 | Markus Armbruster | const char *serial; |
102 | f8b6cc00 | Markus Armbruster | DriveInfo *dinfo; |
103 | 6ced55a5 | Markus Armbruster | |
104 | 6ced55a5 | Markus Armbruster | serial = dev->serial; |
105 | 6ced55a5 | Markus Armbruster | if (!serial) {
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106 | 6ced55a5 | Markus Armbruster | /* try to fall back to value set with legacy -drive serial=... */
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107 | f8b6cc00 | Markus Armbruster | dinfo = drive_get_by_blockdev(dev->conf.bs); |
108 | f8b6cc00 | Markus Armbruster | if (*dinfo->serial) {
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109 | f8b6cc00 | Markus Armbruster | serial = dinfo->serial; |
110 | f8b6cc00 | Markus Armbruster | } |
111 | 6ced55a5 | Markus Armbruster | } |
112 | 6ced55a5 | Markus Armbruster | |
113 | f8b6cc00 | Markus Armbruster | ide_init_drive(s, dev->conf.bs, dev->version, serial); |
114 | 6ced55a5 | Markus Armbruster | |
115 | 03432407 | Markus Armbruster | if (!dev->version) {
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116 | 03432407 | Markus Armbruster | dev->version = qemu_strdup(s->version); |
117 | 03432407 | Markus Armbruster | } |
118 | 6ced55a5 | Markus Armbruster | if (!dev->serial) {
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119 | 6ced55a5 | Markus Armbruster | dev->serial = qemu_strdup(s->drive_serial_str); |
120 | 6ced55a5 | Markus Armbruster | } |
121 | da4d0419 | Gerd Hoffmann | return 0; |
122 | da4d0419 | Gerd Hoffmann | } |
123 | da4d0419 | Gerd Hoffmann | |
124 | da4d0419 | Gerd Hoffmann | static IDEDeviceInfo ide_drive_info = {
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125 | da4d0419 | Gerd Hoffmann | .qdev.name = "ide-drive",
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126 | da4d0419 | Gerd Hoffmann | .qdev.size = sizeof(IDEDrive),
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127 | da4d0419 | Gerd Hoffmann | .init = ide_drive_initfn, |
128 | da4d0419 | Gerd Hoffmann | .qdev.props = (Property[]) { |
129 | da4d0419 | Gerd Hoffmann | DEFINE_PROP_UINT32("unit", IDEDrive, dev.unit, -1), |
130 | 428c149b | Christoph Hellwig | DEFINE_BLOCK_PROPERTIES(IDEDrive, dev.conf), |
131 | 47c06340 | Gerd Hoffmann | DEFINE_PROP_STRING("ver", IDEDrive, dev.version),
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132 | 6ced55a5 | Markus Armbruster | DEFINE_PROP_STRING("serial", IDEDrive, dev.serial),
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133 | da4d0419 | Gerd Hoffmann | DEFINE_PROP_END_OF_LIST(), |
134 | da4d0419 | Gerd Hoffmann | } |
135 | da4d0419 | Gerd Hoffmann | }; |
136 | da4d0419 | Gerd Hoffmann | |
137 | da4d0419 | Gerd Hoffmann | static void ide_drive_register(void) |
138 | da4d0419 | Gerd Hoffmann | { |
139 | da4d0419 | Gerd Hoffmann | ide_qdev_register(&ide_drive_info); |
140 | da4d0419 | Gerd Hoffmann | } |
141 | da4d0419 | Gerd Hoffmann | device_init(ide_drive_register); |