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);
78 if (dev->unit == -1) {
79 dev->unit = bus->master ? 1 : 0;
82 if (dev->unit >= bus->max_units) {
83 error_report("Can't create IDE unit %d, bus supports only %d units",
84 dev->unit, bus->max_units);
91 error_report("IDE unit %d is in use", dev->unit);
98 error_report("IDE unit %d is in use", dev->unit);
104 error_report("Invalid IDE unit %d", dev->unit);
107 return dc->init(dev);
113 IDEDevice *ide_create_drive(IDEBus *bus, int unit, DriveInfo *drive)
117 dev = qdev_create(&bus->qbus, drive->media_cd ? "ide-cd" : "ide-hd");
118 qdev_prop_set_uint32(dev, "unit", unit);
119 qdev_prop_set_drive(dev, "drive", blk_by_legacy_dinfo(drive),
121 qdev_init_nofail(dev);
122 return DO_UPCAST(IDEDevice, qdev, dev);
125 int ide_get_geometry(BusState *bus, int unit,
126 int16_t *cyls, int8_t *heads, int8_t *secs)
128 IDEState *s = &DO_UPCAST(IDEBus, qbus, bus)->ifs[unit];
130 if (s->drive_kind != IDE_HD || !s->blk) {
134 *cyls = s->cylinders;
140 int ide_get_bios_chs_trans(BusState *bus, int unit)
142 return DO_UPCAST(IDEBus, qbus, bus)->ifs[unit].chs_trans;
145 /* --------------------------------- */
147 typedef struct IDEDrive {
151 static int ide_dev_initfn(IDEDevice *dev, IDEDriveKind kind)
153 IDEBus *bus = DO_UPCAST(IDEBus, qbus, dev->qdev.parent_bus);
154 IDEState *s = bus->ifs + dev->unit;
157 if (!dev->conf.blk) {
158 if (kind != IDE_CD) {
159 error_report("No drive specified");
162 /* Anonymous BlockBackend for an empty drive */
163 dev->conf.blk = blk_new();
167 if (dev->conf.discard_granularity == -1) {
168 dev->conf.discard_granularity = 512;
169 } else if (dev->conf.discard_granularity &&
170 dev->conf.discard_granularity != 512) {
171 error_report("discard_granularity must be 512 for ide");
175 blkconf_blocksizes(&dev->conf);
176 if (dev->conf.logical_block_size != 512) {
177 error_report("logical_block_size must be 512 for IDE");
181 blkconf_serial(&dev->conf, &dev->serial);
182 if (kind != IDE_CD) {
183 blkconf_geometry(&dev->conf, &dev->chs_trans, 65535, 16, 255, &err);
185 error_report_err(err);
189 blkconf_apply_backend_options(&dev->conf);
191 if (ide_init_drive(s, dev->conf.blk, kind,
192 dev->version, dev->serial, dev->model, dev->wwn,
193 dev->conf.cyls, dev->conf.heads, dev->conf.secs,
194 dev->chs_trans) < 0) {
199 dev->version = g_strdup(s->version);
202 dev->serial = g_strdup(s->drive_serial_str);
205 add_boot_device_path(dev->conf.bootindex, &dev->qdev,
206 dev->unit ? "/disk@1" : "/disk@0");
211 static void ide_dev_get_bootindex(Object *obj, Visitor *v, const char *name,
212 void *opaque, Error **errp)
214 IDEDevice *d = IDE_DEVICE(obj);
216 visit_type_int32(v, name, &d->conf.bootindex, errp);
219 static void ide_dev_set_bootindex(Object *obj, Visitor *v, const char *name,
220 void *opaque, Error **errp)
222 IDEDevice *d = IDE_DEVICE(obj);
224 Error *local_err = NULL;
226 visit_type_int32(v, name, &boot_index, &local_err);
230 /* check whether bootindex is present in fw_boot_order list */
231 check_boot_index(boot_index, &local_err);
235 /* change bootindex to a new one */
236 d->conf.bootindex = boot_index;
239 add_boot_device_path(d->conf.bootindex, &d->qdev,
240 d->unit ? "/disk@1" : "/disk@0");
243 error_propagate(errp, local_err);
246 static void ide_dev_instance_init(Object *obj)
248 object_property_add(obj, "bootindex", "int32",
249 ide_dev_get_bootindex,
250 ide_dev_set_bootindex, NULL, NULL, NULL);
251 object_property_set_int(obj, -1, "bootindex", NULL);
254 static int ide_hd_initfn(IDEDevice *dev)
256 return ide_dev_initfn(dev, IDE_HD);
259 static int ide_cd_initfn(IDEDevice *dev)
261 return ide_dev_initfn(dev, IDE_CD);
264 static int ide_drive_initfn(IDEDevice *dev)
266 DriveInfo *dinfo = NULL;
269 dinfo = blk_legacy_dinfo(dev->conf.blk);
272 return ide_dev_initfn(dev, dinfo && dinfo->media_cd ? IDE_CD : IDE_HD);
275 #define DEFINE_IDE_DEV_PROPERTIES() \
276 DEFINE_BLOCK_PROPERTIES(IDEDrive, dev.conf), \
277 DEFINE_BLOCK_ERROR_PROPERTIES(IDEDrive, dev.conf), \
278 DEFINE_PROP_STRING("ver", IDEDrive, dev.version), \
279 DEFINE_PROP_UINT64("wwn", IDEDrive, dev.wwn, 0), \
280 DEFINE_PROP_STRING("serial", IDEDrive, dev.serial),\
281 DEFINE_PROP_STRING("model", IDEDrive, dev.model)
283 static Property ide_hd_properties[] = {
284 DEFINE_IDE_DEV_PROPERTIES(),
285 DEFINE_BLOCK_CHS_PROPERTIES(IDEDrive, dev.conf),
286 DEFINE_PROP_BIOS_CHS_TRANS("bios-chs-trans",
287 IDEDrive, dev.chs_trans, BIOS_ATA_TRANSLATION_AUTO),
288 DEFINE_PROP_END_OF_LIST(),
291 static void ide_hd_class_init(ObjectClass *klass, void *data)
293 DeviceClass *dc = DEVICE_CLASS(klass);
294 IDEDeviceClass *k = IDE_DEVICE_CLASS(klass);
295 k->init = ide_hd_initfn;
296 dc->fw_name = "drive";
297 dc->desc = "virtual IDE disk";
298 dc->props = ide_hd_properties;
301 static const TypeInfo ide_hd_info = {
303 .parent = TYPE_IDE_DEVICE,
304 .instance_size = sizeof(IDEDrive),
305 .class_init = ide_hd_class_init,
308 static Property ide_cd_properties[] = {
309 DEFINE_IDE_DEV_PROPERTIES(),
310 DEFINE_PROP_END_OF_LIST(),
313 static void ide_cd_class_init(ObjectClass *klass, void *data)
315 DeviceClass *dc = DEVICE_CLASS(klass);
316 IDEDeviceClass *k = IDE_DEVICE_CLASS(klass);
317 k->init = ide_cd_initfn;
318 dc->fw_name = "drive";
319 dc->desc = "virtual IDE CD-ROM";
320 dc->props = ide_cd_properties;
323 static const TypeInfo ide_cd_info = {
325 .parent = TYPE_IDE_DEVICE,
326 .instance_size = sizeof(IDEDrive),
327 .class_init = ide_cd_class_init,
330 static Property ide_drive_properties[] = {
331 DEFINE_IDE_DEV_PROPERTIES(),
332 DEFINE_PROP_END_OF_LIST(),
335 static void ide_drive_class_init(ObjectClass *klass, void *data)
337 DeviceClass *dc = DEVICE_CLASS(klass);
338 IDEDeviceClass *k = IDE_DEVICE_CLASS(klass);
339 k->init = ide_drive_initfn;
340 dc->fw_name = "drive";
341 dc->desc = "virtual IDE disk or CD-ROM (legacy)";
342 dc->props = ide_drive_properties;
345 static const TypeInfo ide_drive_info = {
347 .parent = TYPE_IDE_DEVICE,
348 .instance_size = sizeof(IDEDrive),
349 .class_init = ide_drive_class_init,
352 static void ide_device_class_init(ObjectClass *klass, void *data)
354 DeviceClass *k = DEVICE_CLASS(klass);
355 k->init = ide_qdev_init;
356 set_bit(DEVICE_CATEGORY_STORAGE, k->categories);
357 k->bus_type = TYPE_IDE_BUS;
358 k->props = ide_props;
361 static const TypeInfo ide_device_type_info = {
362 .name = TYPE_IDE_DEVICE,
363 .parent = TYPE_DEVICE,
364 .instance_size = sizeof(IDEDevice),
366 .class_size = sizeof(IDEDeviceClass),
367 .class_init = ide_device_class_init,
368 .instance_init = ide_dev_instance_init,
371 static void ide_register_types(void)
373 type_register_static(&ide_bus_info);
374 type_register_static(&ide_hd_info);
375 type_register_static(&ide_cd_info);
376 type_register_static(&ide_drive_info);
377 type_register_static(&ide_device_type_info);
380 type_init(ide_register_types)