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