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1.1 root 1: /*
2: * ide bus support for qdev.
3: *
4: * Copyright (c) 2009 Gerd Hoffmann <[email protected]>
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>
20: #include "dma.h"
1.1.1.3 root 21: #include "qemu-error.h"
1.1 root 22: #include <hw/ide/internal.h>
1.1.1.4 root 23: #include "blockdev.h"
24: #include "sysemu.h"
1.1 root 25:
26: /* --------------------------------- */
27:
1.1.1.4 root 28: static char *idebus_get_fw_dev_path(DeviceState *dev);
29:
1.1 root 30: static struct BusInfo ide_bus_info = {
31: .name = "IDE",
32: .size = sizeof(IDEBus),
1.1.1.4 root 33: .get_fw_dev_path = idebus_get_fw_dev_path,
1.1.1.5 root 34: .props = (Property[]) {
35: DEFINE_PROP_UINT32("unit", IDEDevice, unit, -1),
36: DEFINE_PROP_END_OF_LIST(),
37: },
1.1 root 38: };
39:
1.1.1.4 root 40: void ide_bus_new(IDEBus *idebus, DeviceState *dev, int bus_id)
1.1 root 41: {
42: qbus_create_inplace(&idebus->qbus, &ide_bus_info, dev, NULL);
1.1.1.4 root 43: idebus->bus_id = bus_id;
44: }
45:
46: static char *idebus_get_fw_dev_path(DeviceState *dev)
47: {
48: char path[30];
49:
50: snprintf(path, sizeof(path), "%s@%d", qdev_fw_name(dev),
51: ((IDEBus*)dev->parent_bus)->bus_id);
52:
53: return strdup(path);
1.1 root 54: }
55:
1.1.1.7 ! root 56: static int ide_qdev_init(DeviceState *qdev)
1.1 root 57: {
1.1.1.7 ! root 58: IDEDevice *dev = IDE_DEVICE(qdev);
! 59: IDEDeviceClass *dc = IDE_DEVICE_GET_CLASS(dev);
1.1 root 60: IDEBus *bus = DO_UPCAST(IDEBus, qbus, qdev->parent_bus);
61:
1.1.1.3 root 62: if (!dev->conf.bs) {
63: error_report("No drive specified");
1.1 root 64: goto err;
65: }
66: if (dev->unit == -1) {
67: dev->unit = bus->master ? 1 : 0;
68: }
69: switch (dev->unit) {
70: case 0:
71: if (bus->master) {
1.1.1.3 root 72: error_report("IDE unit %d is in use", dev->unit);
1.1 root 73: goto err;
74: }
75: bus->master = dev;
76: break;
77: case 1:
78: if (bus->slave) {
1.1.1.3 root 79: error_report("IDE unit %d is in use", dev->unit);
1.1 root 80: goto err;
81: }
82: bus->slave = dev;
83: break;
84: default:
1.1.1.3 root 85: error_report("Invalid IDE unit %d", dev->unit);
1.1 root 86: goto err;
87: }
1.1.1.7 ! root 88: return dc->init(dev);
1.1 root 89:
90: err:
91: return -1;
92: }
93:
94: IDEDevice *ide_create_drive(IDEBus *bus, int unit, DriveInfo *drive)
95: {
96: DeviceState *dev;
97:
1.1.1.5 root 98: dev = qdev_create(&bus->qbus, drive->media_cd ? "ide-cd" : "ide-hd");
1.1 root 99: qdev_prop_set_uint32(dev, "unit", unit);
1.1.1.3 root 100: qdev_prop_set_drive_nofail(dev, "drive", drive->bdrv);
101: qdev_init_nofail(dev);
1.1 root 102: return DO_UPCAST(IDEDevice, qdev, dev);
103: }
104:
1.1.1.3 root 105: void ide_get_bs(BlockDriverState *bs[], BusState *qbus)
106: {
107: IDEBus *bus = DO_UPCAST(IDEBus, qbus, qbus);
108: bs[0] = bus->master ? bus->master->conf.bs : NULL;
109: bs[1] = bus->slave ? bus->slave->conf.bs : NULL;
110: }
111:
1.1 root 112: /* --------------------------------- */
113:
114: typedef struct IDEDrive {
115: IDEDevice dev;
116: } IDEDrive;
117:
1.1.1.5 root 118: static int ide_dev_initfn(IDEDevice *dev, IDEDriveKind kind)
1.1 root 119: {
120: IDEBus *bus = DO_UPCAST(IDEBus, qbus, dev->qdev.parent_bus);
1.1.1.3 root 121: IDEState *s = bus->ifs + dev->unit;
122: const char *serial;
123: DriveInfo *dinfo;
124:
1.1.1.5 root 125: if (dev->conf.discard_granularity && dev->conf.discard_granularity != 512) {
126: error_report("discard_granularity must be 512 for ide");
127: return -1;
128: }
129:
1.1.1.3 root 130: serial = dev->serial;
131: if (!serial) {
132: /* try to fall back to value set with legacy -drive serial=... */
133: dinfo = drive_get_by_blockdev(dev->conf.bs);
134: if (*dinfo->serial) {
135: serial = dinfo->serial;
136: }
137: }
138:
1.1.1.7 ! root 139: if (ide_init_drive(s, dev->conf.bs, kind,
! 140: dev->version, serial, dev->model, dev->wwn) < 0) {
1.1.1.3 root 141: return -1;
142: }
143:
144: if (!dev->version) {
1.1.1.6 root 145: dev->version = g_strdup(s->version);
1.1.1.3 root 146: }
147: if (!dev->serial) {
1.1.1.6 root 148: dev->serial = g_strdup(s->drive_serial_str);
1.1.1.3 root 149: }
1.1.1.4 root 150:
151: add_boot_device_path(dev->conf.bootindex, &dev->qdev,
152: dev->unit ? "/disk@1" : "/disk@0");
153:
1.1 root 154: return 0;
155: }
156:
1.1.1.5 root 157: static int ide_hd_initfn(IDEDevice *dev)
158: {
159: return ide_dev_initfn(dev, IDE_HD);
160: }
161:
162: static int ide_cd_initfn(IDEDevice *dev)
163: {
164: return ide_dev_initfn(dev, IDE_CD);
165: }
166:
167: static int ide_drive_initfn(IDEDevice *dev)
168: {
169: DriveInfo *dinfo = drive_get_by_blockdev(dev->conf.bs);
170:
171: return ide_dev_initfn(dev, dinfo->media_cd ? IDE_CD : IDE_HD);
172: }
173:
174: #define DEFINE_IDE_DEV_PROPERTIES() \
175: DEFINE_BLOCK_PROPERTIES(IDEDrive, dev.conf), \
176: DEFINE_PROP_STRING("ver", IDEDrive, dev.version), \
1.1.1.7 ! root 177: DEFINE_PROP_HEX64("wwn", IDEDrive, dev.wwn, 0), \
! 178: DEFINE_PROP_STRING("serial", IDEDrive, dev.serial),\
! 179: DEFINE_PROP_STRING("model", IDEDrive, dev.model)
! 180:
! 181: static Property ide_hd_properties[] = {
! 182: DEFINE_IDE_DEV_PROPERTIES(),
! 183: DEFINE_PROP_END_OF_LIST(),
! 184: };
1.1.1.5 root 185:
1.1.1.7 ! root 186: static void ide_hd_class_init(ObjectClass *klass, void *data)
! 187: {
! 188: DeviceClass *dc = DEVICE_CLASS(klass);
! 189: IDEDeviceClass *k = IDE_DEVICE_CLASS(klass);
! 190: k->init = ide_hd_initfn;
! 191: dc->fw_name = "drive";
! 192: dc->desc = "virtual IDE disk";
! 193: dc->props = ide_hd_properties;
! 194: }
! 195:
! 196: static TypeInfo ide_hd_info = {
! 197: .name = "ide-hd",
! 198: .parent = TYPE_IDE_DEVICE,
! 199: .instance_size = sizeof(IDEDrive),
! 200: .class_init = ide_hd_class_init,
! 201: };
! 202:
! 203: static Property ide_cd_properties[] = {
! 204: DEFINE_IDE_DEV_PROPERTIES(),
! 205: DEFINE_PROP_END_OF_LIST(),
1.1 root 206: };
207:
1.1.1.7 ! root 208: static void ide_cd_class_init(ObjectClass *klass, void *data)
1.1 root 209: {
1.1.1.7 ! root 210: DeviceClass *dc = DEVICE_CLASS(klass);
! 211: IDEDeviceClass *k = IDE_DEVICE_CLASS(klass);
! 212: k->init = ide_cd_initfn;
! 213: dc->fw_name = "drive";
! 214: dc->desc = "virtual IDE CD-ROM";
! 215: dc->props = ide_cd_properties;
! 216: }
1.1.1.5 root 217:
1.1.1.7 ! root 218: static TypeInfo ide_cd_info = {
! 219: .name = "ide-cd",
! 220: .parent = TYPE_IDE_DEVICE,
! 221: .instance_size = sizeof(IDEDrive),
! 222: .class_init = ide_cd_class_init,
! 223: };
! 224:
! 225: static Property ide_drive_properties[] = {
! 226: DEFINE_IDE_DEV_PROPERTIES(),
! 227: DEFINE_PROP_END_OF_LIST(),
! 228: };
! 229:
! 230: static void ide_drive_class_init(ObjectClass *klass, void *data)
! 231: {
! 232: DeviceClass *dc = DEVICE_CLASS(klass);
! 233: IDEDeviceClass *k = IDE_DEVICE_CLASS(klass);
! 234: k->init = ide_drive_initfn;
! 235: dc->fw_name = "drive";
! 236: dc->desc = "virtual IDE disk or CD-ROM (legacy)";
! 237: dc->props = ide_drive_properties;
1.1 root 238: }
1.1.1.7 ! root 239:
! 240: static TypeInfo ide_drive_info = {
! 241: .name = "ide-drive",
! 242: .parent = TYPE_IDE_DEVICE,
! 243: .instance_size = sizeof(IDEDrive),
! 244: .class_init = ide_drive_class_init,
! 245: };
! 246:
! 247: static void ide_device_class_init(ObjectClass *klass, void *data)
! 248: {
! 249: DeviceClass *k = DEVICE_CLASS(klass);
! 250: k->init = ide_qdev_init;
! 251: k->bus_info = &ide_bus_info;
! 252: }
! 253:
! 254: static TypeInfo ide_device_type_info = {
! 255: .name = TYPE_IDE_DEVICE,
! 256: .parent = TYPE_DEVICE,
! 257: .instance_size = sizeof(IDEDevice),
! 258: .abstract = true,
! 259: .class_size = sizeof(IDEDeviceClass),
! 260: .class_init = ide_device_class_init,
! 261: };
! 262:
! 263: static void ide_register_types(void)
! 264: {
! 265: type_register_static(&ide_hd_info);
! 266: type_register_static(&ide_cd_info);
! 267: type_register_static(&ide_drive_info);
! 268: type_register_static(&ide_device_type_info);
! 269: }
! 270:
! 271: type_init(ide_register_types)
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