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20#include "qemu/osdep.h"
21#include "sysemu/dma.h"
22#include "qapi/error.h"
23#include "qapi/qapi-types-block.h"
24#include "qemu/error-report.h"
25#include "qemu/main-loop.h"
26#include "qemu/module.h"
27#include "hw/ide/internal.h"
28#include "hw/qdev-properties.h"
29#include "sysemu/block-backend.h"
30#include "sysemu/blockdev.h"
31#include "hw/block/block.h"
32#include "sysemu/sysemu.h"
33#include "sysemu/runstate.h"
34#include "qapi/visitor.h"
35
36
37
38static char *idebus_get_fw_dev_path(DeviceState *dev);
39static void idebus_unrealize(BusState *qdev, Error **errp);
40
41static Property ide_props[] = {
42 DEFINE_PROP_UINT32("unit", IDEDevice, unit, -1),
43 DEFINE_PROP_END_OF_LIST(),
44};
45
46static void ide_bus_class_init(ObjectClass *klass, void *data)
47{
48 BusClass *k = BUS_CLASS(klass);
49
50 k->get_fw_dev_path = idebus_get_fw_dev_path;
51 k->unrealize = idebus_unrealize;
52}
53
54static void idebus_unrealize(BusState *bus, Error **errp)
55{
56 IDEBus *ibus = IDE_BUS(bus);
57
58 if (ibus->vmstate) {
59 qemu_del_vm_change_state_handler(ibus->vmstate);
60 }
61}
62
63static const TypeInfo ide_bus_info = {
64 .name = TYPE_IDE_BUS,
65 .parent = TYPE_BUS,
66 .instance_size = sizeof(IDEBus),
67 .class_init = ide_bus_class_init,
68};
69
70void ide_bus_new(IDEBus *idebus, size_t idebus_size, DeviceState *dev,
71 int bus_id, int max_units)
72{
73 qbus_create_inplace(idebus, idebus_size, TYPE_IDE_BUS, dev, NULL);
74 idebus->bus_id = bus_id;
75 idebus->max_units = max_units;
76}
77
78static char *idebus_get_fw_dev_path(DeviceState *dev)
79{
80 char path[30];
81
82 snprintf(path, sizeof(path), "%s@%x", qdev_fw_name(dev),
83 ((IDEBus*)dev->parent_bus)->bus_id);
84
85 return g_strdup(path);
86}
87
88static void ide_qdev_realize(DeviceState *qdev, Error **errp)
89{
90 IDEDevice *dev = IDE_DEVICE(qdev);
91 IDEDeviceClass *dc = IDE_DEVICE_GET_CLASS(dev);
92 IDEBus *bus = DO_UPCAST(IDEBus, qbus, qdev->parent_bus);
93
94 if (dev->unit == -1) {
95 dev->unit = bus->master ? 1 : 0;
96 }
97
98 if (dev->unit >= bus->max_units) {
99 error_setg(errp, "Can't create IDE unit %d, bus supports only %d units",
100 dev->unit, bus->max_units);
101 return;
102 }
103
104 switch (dev->unit) {
105 case 0:
106 if (bus->master) {
107 error_setg(errp, "IDE unit %d is in use", dev->unit);
108 return;
109 }
110 bus->master = dev;
111 break;
112 case 1:
113 if (bus->slave) {
114 error_setg(errp, "IDE unit %d is in use", dev->unit);
115 return;
116 }
117 bus->slave = dev;
118 break;
119 default:
120 error_setg(errp, "Invalid IDE unit %d", dev->unit);
121 return;
122 }
123 dc->realize(dev, errp);
124}
125
126IDEDevice *ide_create_drive(IDEBus *bus, int unit, DriveInfo *drive)
127{
128 DeviceState *dev;
129
130 dev = qdev_create(&bus->qbus, drive->media_cd ? "ide-cd" : "ide-hd");
131 qdev_prop_set_uint32(dev, "unit", unit);
132 qdev_prop_set_drive(dev, "drive", blk_by_legacy_dinfo(drive),
133 &error_fatal);
134 qdev_init_nofail(dev);
135 return DO_UPCAST(IDEDevice, qdev, dev);
136}
137
138int ide_get_geometry(BusState *bus, int unit,
139 int16_t *cyls, int8_t *heads, int8_t *secs)
140{
141 IDEState *s = &DO_UPCAST(IDEBus, qbus, bus)->ifs[unit];
142
143 if (s->drive_kind != IDE_HD || !s->blk) {
144 return -1;
145 }
146
147 *cyls = s->cylinders;
148 *heads = s->heads;
149 *secs = s->sectors;
150 return 0;
151}
152
153int ide_get_bios_chs_trans(BusState *bus, int unit)
154{
155 return DO_UPCAST(IDEBus, qbus, bus)->ifs[unit].chs_trans;
156}
157
158
159
160typedef struct IDEDrive {
161 IDEDevice dev;
162} IDEDrive;
163
164static void ide_dev_initfn(IDEDevice *dev, IDEDriveKind kind, Error **errp)
165{
166 IDEBus *bus = DO_UPCAST(IDEBus, qbus, dev->qdev.parent_bus);
167 IDEState *s = bus->ifs + dev->unit;
168 int ret;
169
170 if (!dev->conf.blk) {
171 if (kind != IDE_CD) {
172 error_setg(errp, "No drive specified");
173 return;
174 } else {
175
176 dev->conf.blk = blk_new(qemu_get_aio_context(), 0, BLK_PERM_ALL);
177 ret = blk_attach_dev(dev->conf.blk, &dev->qdev);
178 assert(ret == 0);
179 }
180 }
181
182 if (dev->conf.discard_granularity == -1) {
183 dev->conf.discard_granularity = 512;
184 } else if (dev->conf.discard_granularity &&
185 dev->conf.discard_granularity != 512) {
186 error_setg(errp, "discard_granularity must be 512 for ide");
187 return;
188 }
189
190 blkconf_blocksizes(&dev->conf);
191 if (dev->conf.logical_block_size != 512) {
192 error_setg(errp, "logical_block_size must be 512 for IDE");
193 return;
194 }
195
196 if (kind != IDE_CD) {
197 if (!blkconf_geometry(&dev->conf, &dev->chs_trans, 65535, 16, 255,
198 errp)) {
199 return;
200 }
201 }
202 if (!blkconf_apply_backend_options(&dev->conf, kind == IDE_CD,
203 kind != IDE_CD, errp)) {
204 return;
205 }
206
207 if (ide_init_drive(s, dev->conf.blk, kind,
208 dev->version, dev->serial, dev->model, dev->wwn,
209 dev->conf.cyls, dev->conf.heads, dev->conf.secs,
210 dev->chs_trans, errp) < 0) {
211 return;
212 }
213
214 if (!dev->version) {
215 dev->version = g_strdup(s->version);
216 }
217 if (!dev->serial) {
218 dev->serial = g_strdup(s->drive_serial_str);
219 }
220
221 add_boot_device_path(dev->conf.bootindex, &dev->qdev,
222 dev->unit ? "/disk@1" : "/disk@0");
223
224 add_boot_device_lchs(&dev->qdev, dev->unit ? "/disk@1" : "/disk@0",
225 dev->conf.lcyls,
226 dev->conf.lheads,
227 dev->conf.lsecs);
228}
229
230static void ide_dev_get_bootindex(Object *obj, Visitor *v, const char *name,
231 void *opaque, Error **errp)
232{
233 IDEDevice *d = IDE_DEVICE(obj);
234
235 visit_type_int32(v, name, &d->conf.bootindex, errp);
236}
237
238static void ide_dev_set_bootindex(Object *obj, Visitor *v, const char *name,
239 void *opaque, Error **errp)
240{
241 IDEDevice *d = IDE_DEVICE(obj);
242 int32_t boot_index;
243 Error *local_err = NULL;
244
245 visit_type_int32(v, name, &boot_index, &local_err);
246 if (local_err) {
247 goto out;
248 }
249
250 check_boot_index(boot_index, &local_err);
251 if (local_err) {
252 goto out;
253 }
254
255 d->conf.bootindex = boot_index;
256
257 if (d->unit != -1) {
258 add_boot_device_path(d->conf.bootindex, &d->qdev,
259 d->unit ? "/disk@1" : "/disk@0");
260 }
261out:
262 error_propagate(errp, local_err);
263}
264
265static void ide_dev_instance_init(Object *obj)
266{
267 object_property_add(obj, "bootindex", "int32",
268 ide_dev_get_bootindex,
269 ide_dev_set_bootindex, NULL, NULL, NULL);
270 object_property_set_int(obj, -1, "bootindex", NULL);
271}
272
273static void ide_hd_realize(IDEDevice *dev, Error **errp)
274{
275 ide_dev_initfn(dev, IDE_HD, errp);
276}
277
278static void ide_cd_realize(IDEDevice *dev, Error **errp)
279{
280 ide_dev_initfn(dev, IDE_CD, errp);
281}
282
283static void ide_drive_realize(IDEDevice *dev, Error **errp)
284{
285 DriveInfo *dinfo = NULL;
286
287 warn_report("'ide-drive' is deprecated, "
288 "please use 'ide-hd' or 'ide-cd' instead");
289
290 if (dev->conf.blk) {
291 dinfo = blk_legacy_dinfo(dev->conf.blk);
292 }
293
294 ide_dev_initfn(dev, dinfo && dinfo->media_cd ? IDE_CD : IDE_HD, errp);
295}
296
297#define DEFINE_IDE_DEV_PROPERTIES() \
298 DEFINE_BLOCK_PROPERTIES(IDEDrive, dev.conf), \
299 DEFINE_BLOCK_ERROR_PROPERTIES(IDEDrive, dev.conf), \
300 DEFINE_PROP_STRING("ver", IDEDrive, dev.version), \
301 DEFINE_PROP_UINT64("wwn", IDEDrive, dev.wwn, 0), \
302 DEFINE_PROP_STRING("serial", IDEDrive, dev.serial),\
303 DEFINE_PROP_STRING("model", IDEDrive, dev.model)
304
305static Property ide_hd_properties[] = {
306 DEFINE_IDE_DEV_PROPERTIES(),
307 DEFINE_BLOCK_CHS_PROPERTIES(IDEDrive, dev.conf),
308 DEFINE_PROP_BIOS_CHS_TRANS("bios-chs-trans",
309 IDEDrive, dev.chs_trans, BIOS_ATA_TRANSLATION_AUTO),
310 DEFINE_PROP_UINT16("rotation_rate", IDEDrive, dev.rotation_rate, 0),
311 DEFINE_PROP_END_OF_LIST(),
312};
313
314static void ide_hd_class_init(ObjectClass *klass, void *data)
315{
316 DeviceClass *dc = DEVICE_CLASS(klass);
317 IDEDeviceClass *k = IDE_DEVICE_CLASS(klass);
318
319 k->realize = ide_hd_realize;
320 dc->fw_name = "drive";
321 dc->desc = "virtual IDE disk";
322 dc->props = ide_hd_properties;
323}
324
325static const TypeInfo ide_hd_info = {
326 .name = "ide-hd",
327 .parent = TYPE_IDE_DEVICE,
328 .instance_size = sizeof(IDEDrive),
329 .class_init = ide_hd_class_init,
330};
331
332static Property ide_cd_properties[] = {
333 DEFINE_IDE_DEV_PROPERTIES(),
334 DEFINE_PROP_END_OF_LIST(),
335};
336
337static void ide_cd_class_init(ObjectClass *klass, void *data)
338{
339 DeviceClass *dc = DEVICE_CLASS(klass);
340 IDEDeviceClass *k = IDE_DEVICE_CLASS(klass);
341
342 k->realize = ide_cd_realize;
343 dc->fw_name = "drive";
344 dc->desc = "virtual IDE CD-ROM";
345 dc->props = ide_cd_properties;
346}
347
348static const TypeInfo ide_cd_info = {
349 .name = "ide-cd",
350 .parent = TYPE_IDE_DEVICE,
351 .instance_size = sizeof(IDEDrive),
352 .class_init = ide_cd_class_init,
353};
354
355static Property ide_drive_properties[] = {
356 DEFINE_IDE_DEV_PROPERTIES(),
357 DEFINE_PROP_END_OF_LIST(),
358};
359
360static void ide_drive_class_init(ObjectClass *klass, void *data)
361{
362 DeviceClass *dc = DEVICE_CLASS(klass);
363 IDEDeviceClass *k = IDE_DEVICE_CLASS(klass);
364
365 k->realize = ide_drive_realize;
366 dc->fw_name = "drive";
367 dc->desc = "virtual IDE disk or CD-ROM (legacy)";
368 dc->props = ide_drive_properties;
369}
370
371static const TypeInfo ide_drive_info = {
372 .name = "ide-drive",
373 .parent = TYPE_IDE_DEVICE,
374 .instance_size = sizeof(IDEDrive),
375 .class_init = ide_drive_class_init,
376};
377
378static void ide_device_class_init(ObjectClass *klass, void *data)
379{
380 DeviceClass *k = DEVICE_CLASS(klass);
381 k->realize = ide_qdev_realize;
382 set_bit(DEVICE_CATEGORY_STORAGE, k->categories);
383 k->bus_type = TYPE_IDE_BUS;
384 k->props = ide_props;
385}
386
387static const TypeInfo ide_device_type_info = {
388 .name = TYPE_IDE_DEVICE,
389 .parent = TYPE_DEVICE,
390 .instance_size = sizeof(IDEDevice),
391 .abstract = true,
392 .class_size = sizeof(IDEDeviceClass),
393 .class_init = ide_device_class_init,
394 .instance_init = ide_dev_instance_init,
395};
396
397static void ide_register_types(void)
398{
399 type_register_static(&ide_bus_info);
400 type_register_static(&ide_hd_info);
401 type_register_static(&ide_cd_info);
402 type_register_static(&ide_drive_info);
403 type_register_static(&ide_device_type_info);
404}
405
406type_init(ide_register_types)
407
