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