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da4d0419 GH |
1 | /* |
2 | * ide bus support for qdev. | |
3 | * | |
4 | * Copyright (c) 2009 Gerd Hoffmann <kraxel@redhat.com> | |
5 | * | |
6 | * This library is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU Lesser General Public | |
8 | * License as published by the Free Software Foundation; either | |
9 | * version 2 of the License, or (at your option) any later version. | |
10 | * | |
11 | * This library is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * Lesser General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU Lesser General Public | |
17 | * License along with this library; if not, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | #include <hw/hw.h> | |
da4d0419 | 20 | #include "dma.h" |
f597627f | 21 | #include "qemu-error.h" |
da4d0419 | 22 | #include <hw/ide/internal.h> |
2446333c | 23 | #include "blockdev.h" |
da4d0419 GH |
24 | |
25 | /* --------------------------------- */ | |
26 | ||
27 | static struct BusInfo ide_bus_info = { | |
28 | .name = "IDE", | |
29 | .size = sizeof(IDEBus), | |
30 | }; | |
31 | ||
1f850f10 | 32 | void ide_bus_new(IDEBus *idebus, DeviceState *dev) |
da4d0419 | 33 | { |
1f850f10 | 34 | qbus_create_inplace(&idebus->qbus, &ide_bus_info, dev, NULL); |
da4d0419 GH |
35 | } |
36 | ||
37 | static int ide_qdev_init(DeviceState *qdev, DeviceInfo *base) | |
38 | { | |
39 | IDEDevice *dev = DO_UPCAST(IDEDevice, qdev, qdev); | |
40 | IDEDeviceInfo *info = DO_UPCAST(IDEDeviceInfo, qdev, base); | |
41 | IDEBus *bus = DO_UPCAST(IDEBus, qbus, qdev->parent_bus); | |
42 | ||
f8b6cc00 | 43 | if (!dev->conf.bs) { |
f597627f | 44 | error_report("No drive specified"); |
da4d0419 GH |
45 | goto err; |
46 | } | |
47 | if (dev->unit == -1) { | |
48 | dev->unit = bus->master ? 1 : 0; | |
49 | } | |
50 | switch (dev->unit) { | |
51 | case 0: | |
52 | if (bus->master) { | |
f597627f | 53 | error_report("IDE unit %d is in use", dev->unit); |
da4d0419 GH |
54 | goto err; |
55 | } | |
56 | bus->master = dev; | |
57 | break; | |
58 | case 1: | |
59 | if (bus->slave) { | |
f597627f | 60 | error_report("IDE unit %d is in use", dev->unit); |
da4d0419 GH |
61 | goto err; |
62 | } | |
63 | bus->slave = dev; | |
64 | break; | |
65 | default: | |
f597627f | 66 | error_report("Invalid IDE unit %d", dev->unit); |
da4d0419 GH |
67 | goto err; |
68 | } | |
69 | return info->init(dev); | |
70 | ||
71 | err: | |
72 | return -1; | |
73 | } | |
74 | ||
75 | static void ide_qdev_register(IDEDeviceInfo *info) | |
76 | { | |
77 | info->qdev.init = ide_qdev_init; | |
78 | info->qdev.bus_info = &ide_bus_info; | |
79 | qdev_register(&info->qdev); | |
80 | } | |
81 | ||
82 | IDEDevice *ide_create_drive(IDEBus *bus, int unit, DriveInfo *drive) | |
83 | { | |
84 | DeviceState *dev; | |
85 | ||
86 | dev = qdev_create(&bus->qbus, "ide-drive"); | |
87 | qdev_prop_set_uint32(dev, "unit", unit); | |
18846dee | 88 | qdev_prop_set_drive_nofail(dev, "drive", drive->bdrv); |
fa12fbbe | 89 | qdev_init_nofail(dev); |
da4d0419 GH |
90 | return DO_UPCAST(IDEDevice, qdev, dev); |
91 | } | |
92 | ||
c0897e0c MA |
93 | void ide_get_bs(BlockDriverState *bs[], BusState *qbus) |
94 | { | |
95 | IDEBus *bus = DO_UPCAST(IDEBus, qbus, qbus); | |
96 | bs[0] = bus->master ? bus->master->conf.bs : NULL; | |
97 | bs[1] = bus->slave ? bus->slave->conf.bs : NULL; | |
98 | } | |
99 | ||
da4d0419 GH |
100 | /* --------------------------------- */ |
101 | ||
102 | typedef struct IDEDrive { | |
103 | IDEDevice dev; | |
104 | } IDEDrive; | |
105 | ||
106 | static int ide_drive_initfn(IDEDevice *dev) | |
107 | { | |
108 | IDEBus *bus = DO_UPCAST(IDEBus, qbus, dev->qdev.parent_bus); | |
6ced55a5 MA |
109 | IDEState *s = bus->ifs + dev->unit; |
110 | const char *serial; | |
f8b6cc00 | 111 | DriveInfo *dinfo; |
6ced55a5 MA |
112 | |
113 | serial = dev->serial; | |
114 | if (!serial) { | |
115 | /* try to fall back to value set with legacy -drive serial=... */ | |
f8b6cc00 MA |
116 | dinfo = drive_get_by_blockdev(dev->conf.bs); |
117 | if (*dinfo->serial) { | |
118 | serial = dinfo->serial; | |
119 | } | |
6ced55a5 MA |
120 | } |
121 | ||
c4d74df7 MA |
122 | if (ide_init_drive(s, dev->conf.bs, dev->version, serial) < 0) { |
123 | return -1; | |
124 | } | |
6ced55a5 | 125 | |
03432407 MA |
126 | if (!dev->version) { |
127 | dev->version = qemu_strdup(s->version); | |
128 | } | |
6ced55a5 MA |
129 | if (!dev->serial) { |
130 | dev->serial = qemu_strdup(s->drive_serial_str); | |
131 | } | |
da4d0419 GH |
132 | return 0; |
133 | } | |
134 | ||
135 | static IDEDeviceInfo ide_drive_info = { | |
136 | .qdev.name = "ide-drive", | |
137 | .qdev.size = sizeof(IDEDrive), | |
138 | .init = ide_drive_initfn, | |
139 | .qdev.props = (Property[]) { | |
140 | DEFINE_PROP_UINT32("unit", IDEDrive, dev.unit, -1), | |
428c149b | 141 | DEFINE_BLOCK_PROPERTIES(IDEDrive, dev.conf), |
47c06340 | 142 | DEFINE_PROP_STRING("ver", IDEDrive, dev.version), |
6ced55a5 | 143 | DEFINE_PROP_STRING("serial", IDEDrive, dev.serial), |
da4d0419 GH |
144 | DEFINE_PROP_END_OF_LIST(), |
145 | } | |
146 | }; | |
147 | ||
148 | static void ide_drive_register(void) | |
149 | { | |
150 | ide_qdev_register(&ide_drive_info); | |
151 | } | |
152 | device_init(ide_drive_register); |