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);
35 static Property ide_props[] = {
36 DEFINE_PROP_UINT32("unit", IDEDevice, unit, -1),
37 DEFINE_PROP_END_OF_LIST(),
40 static void ide_bus_class_init(ObjectClass *klass, void *data)
42 BusClass *k = BUS_CLASS(klass);
44 k->get_fw_dev_path = idebus_get_fw_dev_path;
47 static const TypeInfo ide_bus_info = {
50 .instance_size = sizeof(IDEBus),
51 .class_init = ide_bus_class_init,
54 void ide_bus_new(IDEBus *idebus, size_t idebus_size, DeviceState *dev,
55 int bus_id, int max_units)
57 qbus_create_inplace(idebus, idebus_size, TYPE_IDE_BUS, dev, NULL);
58 idebus->bus_id = bus_id;
59 idebus->max_units = max_units;
62 static char *idebus_get_fw_dev_path(DeviceState *dev)
66 snprintf(path, sizeof(path), "%s@%x", qdev_fw_name(dev),
67 ((IDEBus*)dev->parent_bus)->bus_id);
69 return g_strdup(path);
72 static int ide_qdev_init(DeviceState *qdev)
74 IDEDevice *dev = IDE_DEVICE(qdev);
75 IDEDeviceClass *dc = IDE_DEVICE_GET_CLASS(dev);
76 IDEBus *bus = DO_UPCAST(IDEBus, qbus, qdev->parent_bus);
79 error_report("No drive specified");
82 if (dev->unit == -1) {
83 dev->unit = bus->master ? 1 : 0;
86 if (dev->unit >= bus->max_units) {
87 error_report("Can't create IDE unit %d, bus supports only %d units",
88 dev->unit, bus->max_units);
95 error_report("IDE unit %d is in use", dev->unit);
102 error_report("IDE unit %d is in use", dev->unit);
108 error_report("Invalid IDE unit %d", dev->unit);
111 return dc->init(dev);
117 IDEDevice *ide_create_drive(IDEBus *bus, int unit, DriveInfo *drive)
121 dev = qdev_create(&bus->qbus, drive->media_cd ? "ide-cd" : "ide-hd");
122 qdev_prop_set_uint32(dev, "unit", unit);
123 qdev_prop_set_drive(dev, "drive", blk_by_legacy_dinfo(drive),
125 qdev_init_nofail(dev);
126 return DO_UPCAST(IDEDevice, qdev, dev);
129 int ide_get_geometry(BusState *bus, int unit,
130 int16_t *cyls, int8_t *heads, int8_t *secs)
132 IDEState *s = &DO_UPCAST(IDEBus, qbus, bus)->ifs[unit];
134 if (s->drive_kind != IDE_HD || !s->blk) {
138 *cyls = s->cylinders;
144 int ide_get_bios_chs_trans(BusState *bus, int unit)
146 return DO_UPCAST(IDEBus, qbus, bus)->ifs[unit].chs_trans;
149 /* --------------------------------- */
151 typedef struct IDEDrive {
155 static int ide_dev_initfn(IDEDevice *dev, IDEDriveKind kind)
157 IDEBus *bus = DO_UPCAST(IDEBus, qbus, dev->qdev.parent_bus);
158 IDEState *s = bus->ifs + dev->unit;
161 if (dev->conf.discard_granularity == -1) {
162 dev->conf.discard_granularity = 512;
163 } else if (dev->conf.discard_granularity &&
164 dev->conf.discard_granularity != 512) {
165 error_report("discard_granularity must be 512 for ide");
169 blkconf_blocksizes(&dev->conf);
170 if (dev->conf.logical_block_size != 512) {
171 error_report("logical_block_size must be 512 for IDE");
175 blkconf_serial(&dev->conf, &dev->serial);
176 if (kind != IDE_CD) {
177 blkconf_geometry(&dev->conf, &dev->chs_trans, 65535, 16, 255, &err);
179 error_report_err(err);
183 blkconf_apply_backend_options(&dev->conf);
185 if (ide_init_drive(s, dev->conf.blk, kind,
186 dev->version, dev->serial, dev->model, dev->wwn,
187 dev->conf.cyls, dev->conf.heads, dev->conf.secs,
188 dev->chs_trans) < 0) {
193 dev->version = g_strdup(s->version);
196 dev->serial = g_strdup(s->drive_serial_str);
199 add_boot_device_path(dev->conf.bootindex, &dev->qdev,
200 dev->unit ? "/disk@1" : "/disk@0");
205 static void ide_dev_get_bootindex(Object *obj, Visitor *v, const char *name,
206 void *opaque, Error **errp)
208 IDEDevice *d = IDE_DEVICE(obj);
210 visit_type_int32(v, name, &d->conf.bootindex, errp);
213 static void ide_dev_set_bootindex(Object *obj, Visitor *v, const char *name,
214 void *opaque, Error **errp)
216 IDEDevice *d = IDE_DEVICE(obj);
218 Error *local_err = NULL;
220 visit_type_int32(v, name, &boot_index, &local_err);
224 /* check whether bootindex is present in fw_boot_order list */
225 check_boot_index(boot_index, &local_err);
229 /* change bootindex to a new one */
230 d->conf.bootindex = boot_index;
233 add_boot_device_path(d->conf.bootindex, &d->qdev,
234 d->unit ? "/disk@1" : "/disk@0");
237 error_propagate(errp, local_err);
240 static void ide_dev_instance_init(Object *obj)
242 object_property_add(obj, "bootindex", "int32",
243 ide_dev_get_bootindex,
244 ide_dev_set_bootindex, NULL, NULL, NULL);
245 object_property_set_int(obj, -1, "bootindex", NULL);
248 static int ide_hd_initfn(IDEDevice *dev)
250 return ide_dev_initfn(dev, IDE_HD);
253 static int ide_cd_initfn(IDEDevice *dev)
255 return ide_dev_initfn(dev, IDE_CD);
258 static int ide_drive_initfn(IDEDevice *dev)
260 DriveInfo *dinfo = blk_legacy_dinfo(dev->conf.blk);
262 return ide_dev_initfn(dev, dinfo && dinfo->media_cd ? IDE_CD : IDE_HD);
265 #define DEFINE_IDE_DEV_PROPERTIES() \
266 DEFINE_BLOCK_PROPERTIES(IDEDrive, dev.conf), \
267 DEFINE_BLOCK_ERROR_PROPERTIES(IDEDrive, dev.conf), \
268 DEFINE_PROP_STRING("ver", IDEDrive, dev.version), \
269 DEFINE_PROP_UINT64("wwn", IDEDrive, dev.wwn, 0), \
270 DEFINE_PROP_STRING("serial", IDEDrive, dev.serial),\
271 DEFINE_PROP_STRING("model", IDEDrive, dev.model)
273 static Property ide_hd_properties[] = {
274 DEFINE_IDE_DEV_PROPERTIES(),
275 DEFINE_BLOCK_CHS_PROPERTIES(IDEDrive, dev.conf),
276 DEFINE_PROP_BIOS_CHS_TRANS("bios-chs-trans",
277 IDEDrive, dev.chs_trans, BIOS_ATA_TRANSLATION_AUTO),
278 DEFINE_PROP_END_OF_LIST(),
281 static void ide_hd_class_init(ObjectClass *klass, void *data)
283 DeviceClass *dc = DEVICE_CLASS(klass);
284 IDEDeviceClass *k = IDE_DEVICE_CLASS(klass);
285 k->init = ide_hd_initfn;
286 dc->fw_name = "drive";
287 dc->desc = "virtual IDE disk";
288 dc->props = ide_hd_properties;
291 static const TypeInfo ide_hd_info = {
293 .parent = TYPE_IDE_DEVICE,
294 .instance_size = sizeof(IDEDrive),
295 .class_init = ide_hd_class_init,
298 static Property ide_cd_properties[] = {
299 DEFINE_IDE_DEV_PROPERTIES(),
300 DEFINE_PROP_END_OF_LIST(),
303 static void ide_cd_class_init(ObjectClass *klass, void *data)
305 DeviceClass *dc = DEVICE_CLASS(klass);
306 IDEDeviceClass *k = IDE_DEVICE_CLASS(klass);
307 k->init = ide_cd_initfn;
308 dc->fw_name = "drive";
309 dc->desc = "virtual IDE CD-ROM";
310 dc->props = ide_cd_properties;
313 static const TypeInfo ide_cd_info = {
315 .parent = TYPE_IDE_DEVICE,
316 .instance_size = sizeof(IDEDrive),
317 .class_init = ide_cd_class_init,
320 static Property ide_drive_properties[] = {
321 DEFINE_IDE_DEV_PROPERTIES(),
322 DEFINE_PROP_END_OF_LIST(),
325 static void ide_drive_class_init(ObjectClass *klass, void *data)
327 DeviceClass *dc = DEVICE_CLASS(klass);
328 IDEDeviceClass *k = IDE_DEVICE_CLASS(klass);
329 k->init = ide_drive_initfn;
330 dc->fw_name = "drive";
331 dc->desc = "virtual IDE disk or CD-ROM (legacy)";
332 dc->props = ide_drive_properties;
335 static const TypeInfo ide_drive_info = {
337 .parent = TYPE_IDE_DEVICE,
338 .instance_size = sizeof(IDEDrive),
339 .class_init = ide_drive_class_init,
342 static void ide_device_class_init(ObjectClass *klass, void *data)
344 DeviceClass *k = DEVICE_CLASS(klass);
345 k->init = ide_qdev_init;
346 set_bit(DEVICE_CATEGORY_STORAGE, k->categories);
347 k->bus_type = TYPE_IDE_BUS;
348 k->props = ide_props;
351 static const TypeInfo ide_device_type_info = {
352 .name = TYPE_IDE_DEVICE,
353 .parent = TYPE_DEVICE,
354 .instance_size = sizeof(IDEDevice),
356 .class_size = sizeof(IDEDeviceClass),
357 .class_init = ide_device_class_init,
358 .instance_init = ide_dev_instance_init,
361 static void ide_register_types(void)
363 type_register_static(&ide_bus_info);
364 type_register_static(&ide_hd_info);
365 type_register_static(&ide_cd_info);
366 type_register_static(&ide_drive_info);
367 type_register_static(&ide_device_type_info);
370 type_init(ide_register_types)