2 * ide bus support for qdev.
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.
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.
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/>.
19 #include "qemu/osdep.h"
21 #include "sysemu/dma.h"
22 #include "qapi/error.h"
23 #include "qemu/error-report.h"
24 #include "hw/ide/internal.h"
25 #include "sysemu/block-backend.h"
26 #include "sysemu/blockdev.h"
27 #include "hw/block/block.h"
28 #include "sysemu/sysemu.h"
29 #include "qapi/visitor.h"
31 /* --------------------------------- */
33 static char *idebus_get_fw_dev_path(DeviceState *dev);
34 static void idebus_unrealize(DeviceState *qdev, Error **errp);
36 static Property ide_props[] = {
37 DEFINE_PROP_UINT32("unit", IDEDevice, unit, -1),
38 DEFINE_PROP_END_OF_LIST(),
41 static void ide_bus_class_init(ObjectClass *klass, void *data)
43 BusClass *k = BUS_CLASS(klass);
45 k->get_fw_dev_path = idebus_get_fw_dev_path;
48 static void idebus_unrealize(DeviceState *qdev, Error **errp)
50 IDEBus *bus = DO_UPCAST(IDEBus, qbus, qdev->parent_bus);
53 qemu_del_vm_change_state_handler(bus->vmstate);
57 static const TypeInfo ide_bus_info = {
60 .instance_size = sizeof(IDEBus),
61 .class_init = ide_bus_class_init,
64 void ide_bus_new(IDEBus *idebus, size_t idebus_size, DeviceState *dev,
65 int bus_id, int max_units)
67 qbus_create_inplace(idebus, idebus_size, TYPE_IDE_BUS, dev, NULL);
68 idebus->bus_id = bus_id;
69 idebus->max_units = max_units;
72 static char *idebus_get_fw_dev_path(DeviceState *dev)
76 snprintf(path, sizeof(path), "%s@%x", qdev_fw_name(dev),
77 ((IDEBus*)dev->parent_bus)->bus_id);
79 return g_strdup(path);
82 static int ide_qdev_init(DeviceState *qdev)
84 IDEDevice *dev = IDE_DEVICE(qdev);
85 IDEDeviceClass *dc = IDE_DEVICE_GET_CLASS(dev);
86 IDEBus *bus = DO_UPCAST(IDEBus, qbus, qdev->parent_bus);
88 if (dev->unit == -1) {
89 dev->unit = bus->master ? 1 : 0;
92 if (dev->unit >= bus->max_units) {
93 error_report("Can't create IDE unit %d, bus supports only %d units",
94 dev->unit, bus->max_units);
101 error_report("IDE unit %d is in use", dev->unit);
108 error_report("IDE unit %d is in use", dev->unit);
114 error_report("Invalid IDE unit %d", dev->unit);
117 return dc->init(dev);
123 IDEDevice *ide_create_drive(IDEBus *bus, int unit, DriveInfo *drive)
127 dev = qdev_create(&bus->qbus, drive->media_cd ? "ide-cd" : "ide-hd");
128 qdev_prop_set_uint32(dev, "unit", unit);
129 qdev_prop_set_drive(dev, "drive", blk_by_legacy_dinfo(drive),
131 qdev_init_nofail(dev);
132 return DO_UPCAST(IDEDevice, qdev, dev);
135 int ide_get_geometry(BusState *bus, int unit,
136 int16_t *cyls, int8_t *heads, int8_t *secs)
138 IDEState *s = &DO_UPCAST(IDEBus, qbus, bus)->ifs[unit];
140 if (s->drive_kind != IDE_HD || !s->blk) {
144 *cyls = s->cylinders;
150 int ide_get_bios_chs_trans(BusState *bus, int unit)
152 return DO_UPCAST(IDEBus, qbus, bus)->ifs[unit].chs_trans;
155 /* --------------------------------- */
157 typedef struct IDEDrive {
161 static int ide_dev_initfn(IDEDevice *dev, IDEDriveKind kind)
163 IDEBus *bus = DO_UPCAST(IDEBus, qbus, dev->qdev.parent_bus);
164 IDEState *s = bus->ifs + dev->unit;
167 if (!dev->conf.blk) {
168 if (kind != IDE_CD) {
169 error_report("No drive specified");
172 /* Anonymous BlockBackend for an empty drive */
173 dev->conf.blk = blk_new(0, BLK_PERM_ALL);
177 if (dev->conf.discard_granularity == -1) {
178 dev->conf.discard_granularity = 512;
179 } else if (dev->conf.discard_granularity &&
180 dev->conf.discard_granularity != 512) {
181 error_report("discard_granularity must be 512 for ide");
185 blkconf_blocksizes(&dev->conf);
186 if (dev->conf.logical_block_size != 512) {
187 error_report("logical_block_size must be 512 for IDE");
191 blkconf_serial(&dev->conf, &dev->serial);
192 if (kind != IDE_CD) {
193 blkconf_geometry(&dev->conf, &dev->chs_trans, 65535, 16, 255, &err);
195 error_report_err(err);
199 blkconf_apply_backend_options(&dev->conf, kind == IDE_CD, kind != IDE_CD,
202 error_report_err(err);
206 if (ide_init_drive(s, dev->conf.blk, kind,
207 dev->version, dev->serial, dev->model, dev->wwn,
208 dev->conf.cyls, dev->conf.heads, dev->conf.secs,
209 dev->chs_trans) < 0) {
214 dev->version = g_strdup(s->version);
217 dev->serial = g_strdup(s->drive_serial_str);
220 add_boot_device_path(dev->conf.bootindex, &dev->qdev,
221 dev->unit ? "/disk@1" : "/disk@0");
226 static void ide_dev_get_bootindex(Object *obj, Visitor *v, const char *name,
227 void *opaque, Error **errp)
229 IDEDevice *d = IDE_DEVICE(obj);
231 visit_type_int32(v, name, &d->conf.bootindex, errp);
234 static void ide_dev_set_bootindex(Object *obj, Visitor *v, const char *name,
235 void *opaque, Error **errp)
237 IDEDevice *d = IDE_DEVICE(obj);
239 Error *local_err = NULL;
241 visit_type_int32(v, name, &boot_index, &local_err);
245 /* check whether bootindex is present in fw_boot_order list */
246 check_boot_index(boot_index, &local_err);
250 /* change bootindex to a new one */
251 d->conf.bootindex = boot_index;
254 add_boot_device_path(d->conf.bootindex, &d->qdev,
255 d->unit ? "/disk@1" : "/disk@0");
258 error_propagate(errp, local_err);
261 static void ide_dev_instance_init(Object *obj)
263 object_property_add(obj, "bootindex", "int32",
264 ide_dev_get_bootindex,
265 ide_dev_set_bootindex, NULL, NULL, NULL);
266 object_property_set_int(obj, -1, "bootindex", NULL);
269 static int ide_hd_initfn(IDEDevice *dev)
271 return ide_dev_initfn(dev, IDE_HD);
274 static int ide_cd_initfn(IDEDevice *dev)
276 return ide_dev_initfn(dev, IDE_CD);
279 static int ide_drive_initfn(IDEDevice *dev)
281 DriveInfo *dinfo = NULL;
284 dinfo = blk_legacy_dinfo(dev->conf.blk);
287 return ide_dev_initfn(dev, dinfo && dinfo->media_cd ? IDE_CD : IDE_HD);
290 #define DEFINE_IDE_DEV_PROPERTIES() \
291 DEFINE_BLOCK_PROPERTIES(IDEDrive, dev.conf), \
292 DEFINE_BLOCK_ERROR_PROPERTIES(IDEDrive, dev.conf), \
293 DEFINE_PROP_STRING("ver", IDEDrive, dev.version), \
294 DEFINE_PROP_UINT64("wwn", IDEDrive, dev.wwn, 0), \
295 DEFINE_PROP_STRING("serial", IDEDrive, dev.serial),\
296 DEFINE_PROP_STRING("model", IDEDrive, dev.model)
298 static Property ide_hd_properties[] = {
299 DEFINE_IDE_DEV_PROPERTIES(),
300 DEFINE_BLOCK_CHS_PROPERTIES(IDEDrive, dev.conf),
301 DEFINE_PROP_BIOS_CHS_TRANS("bios-chs-trans",
302 IDEDrive, dev.chs_trans, BIOS_ATA_TRANSLATION_AUTO),
303 DEFINE_PROP_END_OF_LIST(),
306 static void ide_hd_class_init(ObjectClass *klass, void *data)
308 DeviceClass *dc = DEVICE_CLASS(klass);
309 IDEDeviceClass *k = IDE_DEVICE_CLASS(klass);
310 k->init = ide_hd_initfn;
311 dc->fw_name = "drive";
312 dc->desc = "virtual IDE disk";
313 dc->props = ide_hd_properties;
316 static const TypeInfo ide_hd_info = {
318 .parent = TYPE_IDE_DEVICE,
319 .instance_size = sizeof(IDEDrive),
320 .class_init = ide_hd_class_init,
323 static Property ide_cd_properties[] = {
324 DEFINE_IDE_DEV_PROPERTIES(),
325 DEFINE_PROP_END_OF_LIST(),
328 static void ide_cd_class_init(ObjectClass *klass, void *data)
330 DeviceClass *dc = DEVICE_CLASS(klass);
331 IDEDeviceClass *k = IDE_DEVICE_CLASS(klass);
332 k->init = ide_cd_initfn;
333 dc->fw_name = "drive";
334 dc->desc = "virtual IDE CD-ROM";
335 dc->props = ide_cd_properties;
338 static const TypeInfo ide_cd_info = {
340 .parent = TYPE_IDE_DEVICE,
341 .instance_size = sizeof(IDEDrive),
342 .class_init = ide_cd_class_init,
345 static Property ide_drive_properties[] = {
346 DEFINE_IDE_DEV_PROPERTIES(),
347 DEFINE_PROP_END_OF_LIST(),
350 static void ide_drive_class_init(ObjectClass *klass, void *data)
352 DeviceClass *dc = DEVICE_CLASS(klass);
353 IDEDeviceClass *k = IDE_DEVICE_CLASS(klass);
354 k->init = ide_drive_initfn;
355 dc->fw_name = "drive";
356 dc->desc = "virtual IDE disk or CD-ROM (legacy)";
357 dc->props = ide_drive_properties;
360 static const TypeInfo ide_drive_info = {
362 .parent = TYPE_IDE_DEVICE,
363 .instance_size = sizeof(IDEDrive),
364 .class_init = ide_drive_class_init,
367 static void ide_device_class_init(ObjectClass *klass, void *data)
369 DeviceClass *k = DEVICE_CLASS(klass);
370 k->init = ide_qdev_init;
371 set_bit(DEVICE_CATEGORY_STORAGE, k->categories);
372 k->bus_type = TYPE_IDE_BUS;
373 k->unrealize = idebus_unrealize;
374 k->props = ide_props;
377 static const TypeInfo ide_device_type_info = {
378 .name = TYPE_IDE_DEVICE,
379 .parent = TYPE_DEVICE,
380 .instance_size = sizeof(IDEDevice),
382 .class_size = sizeof(IDEDeviceClass),
383 .class_init = ide_device_class_init,
384 .instance_init = ide_dev_instance_init,
387 static void ide_register_types(void)
389 type_register_static(&ide_bus_info);
390 type_register_static(&ide_hd_info);
391 type_register_static(&ide_cd_info);
392 type_register_static(&ide_drive_info);
393 type_register_static(&ide_device_type_info);
396 type_init(ide_register_types)