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aae9460e PB |
1 | /* |
2 | * Dynamic device configuration and creation. | |
3 | * | |
4 | * Copyright (c) 2009 CodeSourcery | |
5 | * | |
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. | |
10 | * | |
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. | |
15 | * | |
16 | * You should have received a copy of the GNU Lesser General Public | |
8167ee88 | 17 | * License along with this library; if not, see <http://www.gnu.org/licenses/>. |
aae9460e PB |
18 | */ |
19 | ||
20 | /* The theory here is that it should be possible to create a machine without | |
21 | knowledge of specific devices. Historically board init routines have | |
22 | passed a bunch of arguments to each device, requiring the board know | |
23 | exactly which device it is dealing with. This file provides an abstract | |
24 | API for device configuration and initialization. Devices will generally | |
25 | inherit from a particular bus (e.g. PCI or I2C) rather than | |
26 | this API directly. */ | |
27 | ||
9d07d757 | 28 | #include "net.h" |
aae9460e PB |
29 | #include "qdev.h" |
30 | #include "sysemu.h" | |
cae4956e | 31 | #include "monitor.h" |
aae9460e | 32 | |
3418bd25 | 33 | static int qdev_hotplug = 0; |
0ac8ef71 AW |
34 | static bool qdev_hot_added = false; |
35 | static bool qdev_hot_removed = false; | |
3418bd25 | 36 | |
cdaed7c7 | 37 | /* This is a nasty hack to allow passing a NULL bus to qdev_create. */ |
b9aaf7f8 | 38 | static BusState *main_system_bus; |
2da8bb92 | 39 | static void main_system_bus_create(void); |
4d6ae674 | 40 | |
0958b4cc | 41 | DeviceInfo *device_info_list; |
aae9460e | 42 | |
8ffb1bcf GH |
43 | static BusState *qbus_find_recursive(BusState *bus, const char *name, |
44 | const BusInfo *info); | |
45 | static BusState *qbus_find(const char *path); | |
46 | ||
aae9460e | 47 | /* Register a new device type. */ |
074f2fff | 48 | void qdev_register(DeviceInfo *info) |
aae9460e | 49 | { |
074f2fff | 50 | assert(info->size >= sizeof(DeviceState)); |
042f84d0 | 51 | assert(!info->next); |
aae9460e | 52 | |
042f84d0 GH |
53 | info->next = device_info_list; |
54 | device_info_list = info; | |
aae9460e PB |
55 | } |
56 | ||
81ebb98b GH |
57 | static DeviceInfo *qdev_find_info(BusInfo *bus_info, const char *name) |
58 | { | |
59 | DeviceInfo *info; | |
60 | ||
3320e56e | 61 | /* first check device names */ |
81ebb98b GH |
62 | for (info = device_info_list; info != NULL; info = info->next) { |
63 | if (bus_info && info->bus_info != bus_info) | |
64 | continue; | |
65 | if (strcmp(info->name, name) != 0) | |
66 | continue; | |
67 | return info; | |
68 | } | |
3320e56e GH |
69 | |
70 | /* failing that check the aliases */ | |
71 | for (info = device_info_list; info != NULL; info = info->next) { | |
72 | if (bus_info && info->bus_info != bus_info) | |
73 | continue; | |
74 | if (!info->alias) | |
75 | continue; | |
76 | if (strcmp(info->alias, name) != 0) | |
77 | continue; | |
78 | return info; | |
79 | } | |
81ebb98b GH |
80 | return NULL; |
81 | } | |
82 | ||
a369da5f BS |
83 | bool qdev_exists(const char *name) |
84 | { | |
85 | return !!qdev_find_info(NULL, name); | |
86 | } | |
ca2cc788 PB |
87 | static void qdev_property_add_legacy(DeviceState *dev, Property *prop, |
88 | Error **errp); | |
89 | ||
0c17542d MA |
90 | static DeviceState *qdev_create_from_info(BusState *bus, DeviceInfo *info) |
91 | { | |
92 | DeviceState *dev; | |
a5296ca9 | 93 | Property *prop; |
0c17542d MA |
94 | |
95 | assert(bus->info == info->bus_info); | |
7267c094 | 96 | dev = g_malloc0(info->size); |
0c17542d MA |
97 | dev->info = info; |
98 | dev->parent_bus = bus; | |
99 | qdev_prop_set_defaults(dev, dev->info->props); | |
100 | qdev_prop_set_defaults(dev, dev->parent_bus->info->props); | |
101 | qdev_prop_set_globals(dev); | |
d8bb00d6 | 102 | QTAILQ_INSERT_HEAD(&bus->children, dev, sibling); |
0c17542d MA |
103 | if (qdev_hotplug) { |
104 | assert(bus->allow_hotplug); | |
105 | dev->hotplugged = 1; | |
0ac8ef71 | 106 | qdev_hot_added = true; |
0c17542d | 107 | } |
4d2ffa08 | 108 | dev->instance_id_alias = -1; |
44677ded | 109 | QTAILQ_INIT(&dev->properties); |
0c17542d | 110 | dev->state = DEV_STATE_CREATED; |
a5296ca9 AL |
111 | |
112 | for (prop = dev->info->props; prop && prop->name; prop++) { | |
113 | qdev_property_add_legacy(dev, prop, NULL); | |
ca2cc788 | 114 | qdev_property_add_static(dev, prop, NULL); |
a5296ca9 AL |
115 | } |
116 | ||
117 | for (prop = dev->info->bus_info->props; prop && prop->name; prop++) { | |
118 | qdev_property_add_legacy(dev, prop, NULL); | |
ca2cc788 | 119 | qdev_property_add_static(dev, prop, NULL); |
a5296ca9 AL |
120 | } |
121 | ||
cd34d667 AL |
122 | qdev_property_add_str(dev, "type", qdev_get_type, NULL, NULL); |
123 | ||
0c17542d MA |
124 | return dev; |
125 | } | |
126 | ||
aae9460e PB |
127 | /* Create a new device. This only initializes the device state structure |
128 | and allows properties to be set. qdev_init should be called to | |
129 | initialize the actual device emulation. */ | |
02e2da45 | 130 | DeviceState *qdev_create(BusState *bus, const char *name) |
0bcdeda7 BS |
131 | { |
132 | DeviceState *dev; | |
133 | ||
134 | dev = qdev_try_create(bus, name); | |
135 | if (!dev) { | |
e92714c7 PM |
136 | if (bus) { |
137 | hw_error("Unknown device '%s' for bus '%s'\n", name, | |
138 | bus->info->name); | |
139 | } else { | |
140 | hw_error("Unknown device '%s' for default sysbus\n", name); | |
141 | } | |
0bcdeda7 BS |
142 | } |
143 | ||
144 | return dev; | |
145 | } | |
146 | ||
147 | DeviceState *qdev_try_create(BusState *bus, const char *name) | |
aae9460e | 148 | { |
042f84d0 | 149 | DeviceInfo *info; |
aae9460e | 150 | |
10c4c98a | 151 | if (!bus) { |
68694897 | 152 | bus = sysbus_get_default(); |
10c4c98a GH |
153 | } |
154 | ||
81ebb98b | 155 | info = qdev_find_info(bus->info, name); |
042f84d0 | 156 | if (!info) { |
0bcdeda7 | 157 | return NULL; |
aae9460e PB |
158 | } |
159 | ||
0c17542d | 160 | return qdev_create_from_info(bus, info); |
aae9460e PB |
161 | } |
162 | ||
8a9662ca | 163 | static void qdev_print_devinfo(DeviceInfo *info) |
1b524b04 | 164 | { |
8a9662ca MA |
165 | error_printf("name \"%s\", bus %s", |
166 | info->name, info->bus_info->name); | |
22f2e344 | 167 | if (info->alias) { |
8a9662ca | 168 | error_printf(", alias \"%s\"", info->alias); |
22f2e344 GH |
169 | } |
170 | if (info->desc) { | |
8a9662ca | 171 | error_printf(", desc \"%s\"", info->desc); |
22f2e344 GH |
172 | } |
173 | if (info->no_user) { | |
8a9662ca | 174 | error_printf(", no-user"); |
22f2e344 | 175 | } |
8a9662ca | 176 | error_printf("\n"); |
1b524b04 GH |
177 | } |
178 | ||
f31d07d1 | 179 | static int set_property(const char *name, const char *value, void *opaque) |
8ffb1bcf | 180 | { |
f31d07d1 GH |
181 | DeviceState *dev = opaque; |
182 | ||
183 | if (strcmp(name, "driver") == 0) | |
184 | return 0; | |
185 | if (strcmp(name, "bus") == 0) | |
186 | return 0; | |
187 | ||
3df04ac3 | 188 | if (qdev_prop_parse(dev, name, value) == -1) { |
f31d07d1 GH |
189 | return -1; |
190 | } | |
191 | return 0; | |
192 | } | |
193 | ||
ff952ba2 MA |
194 | int qdev_device_help(QemuOpts *opts) |
195 | { | |
196 | const char *driver; | |
197 | DeviceInfo *info; | |
08350cf0 | 198 | Property *prop; |
ff952ba2 MA |
199 | |
200 | driver = qemu_opt_get(opts, "driver"); | |
201 | if (driver && !strcmp(driver, "?")) { | |
202 | for (info = device_info_list; info != NULL; info = info->next) { | |
c64eafaf MA |
203 | if (info->no_user) { |
204 | continue; /* not available, don't show */ | |
205 | } | |
8a9662ca | 206 | qdev_print_devinfo(info); |
ff952ba2 MA |
207 | } |
208 | return 1; | |
209 | } | |
210 | ||
542379f4 | 211 | if (!driver || !qemu_opt_get(opts, "?")) { |
08350cf0 MA |
212 | return 0; |
213 | } | |
214 | ||
215 | info = qdev_find_info(NULL, driver); | |
216 | if (!info) { | |
217 | return 0; | |
218 | } | |
219 | ||
220 | for (prop = info->props; prop && prop->name; prop++) { | |
036f7166 MA |
221 | /* |
222 | * TODO Properties without a parser are just for dirty hacks. | |
223 | * qdev_prop_ptr is the only such PropertyInfo. It's marked | |
224 | * for removal. This conditional should be removed along with | |
225 | * it. | |
226 | */ | |
227 | if (!prop->info->parse) { | |
228 | continue; /* no way to set it, don't show */ | |
229 | } | |
cafe5bdb PB |
230 | error_printf("%s.%s=%s\n", info->name, prop->name, |
231 | prop->info->legacy_name ?: prop->info->name); | |
a8467c7a GH |
232 | } |
233 | for (prop = info->bus_info->props; prop && prop->name; prop++) { | |
234 | if (!prop->info->parse) { | |
235 | continue; /* no way to set it, don't show */ | |
236 | } | |
cafe5bdb PB |
237 | error_printf("%s.%s=%s\n", info->name, prop->name, |
238 | prop->info->legacy_name ?: prop->info->name); | |
08350cf0 MA |
239 | } |
240 | return 1; | |
ff952ba2 MA |
241 | } |
242 | ||
1bdaacb1 AL |
243 | static DeviceState *qdev_get_peripheral(void) |
244 | { | |
245 | static DeviceState *dev; | |
246 | ||
247 | if (dev == NULL) { | |
248 | dev = qdev_create(NULL, "container"); | |
249 | qdev_property_add_child(qdev_get_root(), "peripheral", dev, NULL); | |
250 | qdev_init_nofail(dev); | |
251 | } | |
252 | ||
253 | return dev; | |
254 | } | |
255 | ||
8eb02831 AL |
256 | static DeviceState *qdev_get_peripheral_anon(void) |
257 | { | |
258 | static DeviceState *dev; | |
259 | ||
260 | if (dev == NULL) { | |
261 | dev = qdev_create(NULL, "container"); | |
262 | qdev_property_add_child(qdev_get_root(), "peripheral-anon", dev, NULL); | |
263 | qdev_init_nofail(dev); | |
264 | } | |
265 | ||
266 | return dev; | |
267 | } | |
268 | ||
f31d07d1 GH |
269 | DeviceState *qdev_device_add(QemuOpts *opts) |
270 | { | |
271 | const char *driver, *path, *id; | |
8ffb1bcf GH |
272 | DeviceInfo *info; |
273 | DeviceState *qdev; | |
274 | BusState *bus; | |
8ffb1bcf | 275 | |
f31d07d1 GH |
276 | driver = qemu_opt_get(opts, "driver"); |
277 | if (!driver) { | |
0204276b | 278 | qerror_report(QERR_MISSING_PARAMETER, "driver"); |
8ffb1bcf GH |
279 | return NULL; |
280 | } | |
f31d07d1 GH |
281 | |
282 | /* find driver */ | |
8ffb1bcf | 283 | info = qdev_find_info(NULL, driver); |
c64eafaf | 284 | if (!info || info->no_user) { |
e17ba87c | 285 | qerror_report(QERR_INVALID_PARAMETER_VALUE, "driver", "a driver name"); |
0204276b | 286 | error_printf_unless_qmp("Try with argument '?' for a list.\n"); |
8ffb1bcf GH |
287 | return NULL; |
288 | } | |
8ffb1bcf | 289 | |
f31d07d1 GH |
290 | /* find bus */ |
291 | path = qemu_opt_get(opts, "bus"); | |
292 | if (path != NULL) { | |
8ffb1bcf | 293 | bus = qbus_find(path); |
ac8dae67 MA |
294 | if (!bus) { |
295 | return NULL; | |
296 | } | |
297 | if (bus->info != info->bus_info) { | |
0204276b MA |
298 | qerror_report(QERR_BAD_BUS_FOR_DEVICE, |
299 | driver, bus->info->name); | |
327867b6 MA |
300 | return NULL; |
301 | } | |
8ffb1bcf GH |
302 | } else { |
303 | bus = qbus_find_recursive(main_system_bus, NULL, info->bus_info); | |
ac8dae67 | 304 | if (!bus) { |
0204276b MA |
305 | qerror_report(QERR_NO_BUS_FOR_DEVICE, |
306 | info->name, info->bus_info->name); | |
ac8dae67 MA |
307 | return NULL; |
308 | } | |
75570088 | 309 | } |
3418bd25 | 310 | if (qdev_hotplug && !bus->allow_hotplug) { |
0204276b | 311 | qerror_report(QERR_BUS_NO_HOTPLUG, bus->name); |
3418bd25 GH |
312 | return NULL; |
313 | } | |
8ffb1bcf | 314 | |
f31d07d1 | 315 | /* create device, set properties */ |
0c17542d | 316 | qdev = qdev_create_from_info(bus, info); |
f31d07d1 GH |
317 | id = qemu_opts_id(opts); |
318 | if (id) { | |
319 | qdev->id = id; | |
1bdaacb1 | 320 | qdev_property_add_child(qdev_get_peripheral(), qdev->id, qdev, NULL); |
8eb02831 AL |
321 | } else { |
322 | static int anon_count; | |
323 | gchar *name = g_strdup_printf("device[%d]", anon_count++); | |
324 | qdev_property_add_child(qdev_get_peripheral_anon(), name, | |
325 | qdev, NULL); | |
326 | g_free(name); | |
327 | } | |
f31d07d1 GH |
328 | if (qemu_opt_foreach(opts, set_property, qdev, 1) != 0) { |
329 | qdev_free(qdev); | |
330 | return NULL; | |
8ffb1bcf | 331 | } |
5c17ca25 | 332 | if (qdev_init(qdev) < 0) { |
0204276b | 333 | qerror_report(QERR_DEVICE_INIT_FAILED, driver); |
81a322d4 GH |
334 | return NULL; |
335 | } | |
ef80b466 | 336 | qdev->opts = opts; |
8ffb1bcf GH |
337 | return qdev; |
338 | } | |
339 | ||
aae9460e PB |
340 | /* Initialize a device. Device properties should be set before calling |
341 | this function. IRQs and MMIO regions should be connected/mapped after | |
18cfeb52 MA |
342 | calling this function. |
343 | On failure, destroy the device and return negative value. | |
344 | Return 0 on success. */ | |
81a322d4 | 345 | int qdev_init(DeviceState *dev) |
aae9460e | 346 | { |
959f733a GH |
347 | int rc; |
348 | ||
131ec1bd | 349 | assert(dev->state == DEV_STATE_CREATED); |
959f733a | 350 | rc = dev->info->init(dev, dev->info); |
18cfeb52 MA |
351 | if (rc < 0) { |
352 | qdev_free(dev); | |
959f733a | 353 | return rc; |
18cfeb52 | 354 | } |
4d2ffa08 | 355 | if (dev->info->vmsd) { |
0be71e32 | 356 | vmstate_register_with_alias_id(dev, -1, dev->info->vmsd, dev, |
4d2ffa08 JK |
357 | dev->instance_id_alias, |
358 | dev->alias_required_for_version); | |
359 | } | |
131ec1bd | 360 | dev->state = DEV_STATE_INITIALIZED; |
5ab28c83 JK |
361 | if (dev->hotplugged && dev->info->reset) { |
362 | dev->info->reset(dev); | |
363 | } | |
959f733a | 364 | return 0; |
02e2da45 PB |
365 | } |
366 | ||
4d2ffa08 JK |
367 | void qdev_set_legacy_instance_id(DeviceState *dev, int alias_id, |
368 | int required_for_version) | |
369 | { | |
370 | assert(dev->state == DEV_STATE_CREATED); | |
371 | dev->instance_id_alias = alias_id; | |
372 | dev->alias_required_for_version = required_for_version; | |
373 | } | |
374 | ||
3418bd25 GH |
375 | int qdev_unplug(DeviceState *dev) |
376 | { | |
377 | if (!dev->parent_bus->allow_hotplug) { | |
cc601cb7 | 378 | qerror_report(QERR_BUS_NO_HOTPLUG, dev->parent_bus->name); |
3418bd25 GH |
379 | return -1; |
380 | } | |
593831de AS |
381 | assert(dev->info->unplug != NULL); |
382 | ||
0ac8ef71 AW |
383 | qdev_hot_removed = true; |
384 | ||
3418bd25 GH |
385 | return dev->info->unplug(dev); |
386 | } | |
387 | ||
ec990eb6 AL |
388 | static int qdev_reset_one(DeviceState *dev, void *opaque) |
389 | { | |
390 | if (dev->info->reset) { | |
391 | dev->info->reset(dev); | |
392 | } | |
393 | ||
394 | return 0; | |
395 | } | |
396 | ||
397 | BusState *sysbus_get_default(void) | |
398 | { | |
68694897 | 399 | if (!main_system_bus) { |
2da8bb92 | 400 | main_system_bus_create(); |
68694897 | 401 | } |
ec990eb6 AL |
402 | return main_system_bus; |
403 | } | |
404 | ||
b4694b7c IY |
405 | static int qbus_reset_one(BusState *bus, void *opaque) |
406 | { | |
407 | if (bus->info->reset) { | |
408 | return bus->info->reset(bus); | |
409 | } | |
410 | return 0; | |
411 | } | |
412 | ||
5af0a04b IY |
413 | void qdev_reset_all(DeviceState *dev) |
414 | { | |
415 | qdev_walk_children(dev, qdev_reset_one, qbus_reset_one, NULL); | |
416 | } | |
417 | ||
80376c3f IY |
418 | void qbus_reset_all_fn(void *opaque) |
419 | { | |
420 | BusState *bus = opaque; | |
f530cce3 | 421 | qbus_walk_children(bus, qdev_reset_one, qbus_reset_one, NULL); |
80376c3f IY |
422 | } |
423 | ||
3418bd25 GH |
424 | /* can be used as ->unplug() callback for the simple cases */ |
425 | int qdev_simple_unplug_cb(DeviceState *dev) | |
426 | { | |
427 | /* just zap it */ | |
428 | qdev_free(dev); | |
429 | return 0; | |
430 | } | |
431 | ||
3b29a101 MT |
432 | |
433 | /* Like qdev_init(), but terminate program via error_report() instead of | |
e23a1b33 MA |
434 | returning an error value. This is okay during machine creation. |
435 | Don't use for hotplug, because there callers need to recover from | |
436 | failure. Exception: if you know the device's init() callback can't | |
437 | fail, then qdev_init_nofail() can't fail either, and is therefore | |
438 | usable even then. But relying on the device implementation that | |
439 | way is somewhat unclean, and best avoided. */ | |
440 | void qdev_init_nofail(DeviceState *dev) | |
441 | { | |
442 | DeviceInfo *info = dev->info; | |
443 | ||
bd6c9a61 | 444 | if (qdev_init(dev) < 0) { |
6daf194d | 445 | error_report("Initialization of device %s failed", info->name); |
bd6c9a61 MA |
446 | exit(1); |
447 | } | |
e23a1b33 MA |
448 | } |
449 | ||
44677ded AL |
450 | static void qdev_property_del_all(DeviceState *dev) |
451 | { | |
452 | while (!QTAILQ_EMPTY(&dev->properties)) { | |
453 | DeviceProperty *prop = QTAILQ_FIRST(&dev->properties); | |
454 | ||
455 | QTAILQ_REMOVE(&dev->properties, prop, node); | |
456 | ||
457 | if (prop->release) { | |
458 | prop->release(dev, prop->name, prop->opaque); | |
459 | } | |
460 | ||
461 | g_free(prop->name); | |
462 | g_free(prop->type); | |
463 | g_free(prop); | |
464 | } | |
465 | } | |
466 | ||
024a6fbd AL |
467 | static void qdev_property_del_child(DeviceState *dev, DeviceState *child, Error **errp) |
468 | { | |
469 | DeviceProperty *prop; | |
470 | ||
471 | QTAILQ_FOREACH(prop, &dev->properties, node) { | |
472 | if (strstart(prop->type, "child<", NULL) && prop->opaque == child) { | |
473 | break; | |
474 | } | |
475 | } | |
476 | ||
477 | g_assert(prop != NULL); | |
478 | ||
479 | QTAILQ_REMOVE(&dev->properties, prop, node); | |
480 | ||
481 | if (prop->release) { | |
482 | prop->release(dev, prop->name, prop->opaque); | |
483 | } | |
484 | ||
485 | g_free(prop->name); | |
486 | g_free(prop->type); | |
487 | g_free(prop); | |
488 | } | |
489 | ||
02e2da45 PB |
490 | /* Unlink device from bus and free the structure. */ |
491 | void qdev_free(DeviceState *dev) | |
492 | { | |
131ec1bd | 493 | BusState *bus; |
d21357df | 494 | Property *prop; |
131ec1bd | 495 | |
44677ded AL |
496 | qdev_property_del_all(dev); |
497 | ||
131ec1bd GH |
498 | if (dev->state == DEV_STATE_INITIALIZED) { |
499 | while (dev->num_child_bus) { | |
500 | bus = QLIST_FIRST(&dev->child_bus); | |
501 | qbus_free(bus); | |
502 | } | |
131ec1bd | 503 | if (dev->info->vmsd) |
0be71e32 | 504 | vmstate_unregister(dev, dev->info->vmsd, dev); |
d29275f1 GH |
505 | if (dev->info->exit) |
506 | dev->info->exit(dev); | |
ef80b466 GH |
507 | if (dev->opts) |
508 | qemu_opts_del(dev->opts); | |
131ec1bd | 509 | } |
d8bb00d6 | 510 | QTAILQ_REMOVE(&dev->parent_bus->children, dev, sibling); |
d21357df MA |
511 | for (prop = dev->info->props; prop && prop->name; prop++) { |
512 | if (prop->info->free) { | |
513 | prop->info->free(dev, prop); | |
514 | } | |
515 | } | |
024a6fbd AL |
516 | if (dev->parent) { |
517 | qdev_property_del_child(dev->parent, dev, NULL); | |
518 | } | |
519 | if (dev->ref != 0) { | |
520 | qerror_report(QERR_DEVICE_IN_USE, dev->id?:""); | |
521 | } | |
7267c094 | 522 | g_free(dev); |
aae9460e PB |
523 | } |
524 | ||
3418bd25 GH |
525 | void qdev_machine_creation_done(void) |
526 | { | |
527 | /* | |
528 | * ok, initial machine setup is done, starting from now we can | |
529 | * only create hotpluggable devices | |
530 | */ | |
531 | qdev_hotplug = 1; | |
532 | } | |
533 | ||
0ac8ef71 AW |
534 | bool qdev_machine_modified(void) |
535 | { | |
536 | return qdev_hot_added || qdev_hot_removed; | |
537 | } | |
538 | ||
aae9460e PB |
539 | /* Get a character (serial) device interface. */ |
540 | CharDriverState *qdev_init_chardev(DeviceState *dev) | |
541 | { | |
542 | static int next_serial; | |
98b19252 AS |
543 | |
544 | /* FIXME: This function needs to go away: use chardev properties! */ | |
545 | return serial_hds[next_serial++]; | |
aae9460e PB |
546 | } |
547 | ||
02e2da45 | 548 | BusState *qdev_get_parent_bus(DeviceState *dev) |
aae9460e | 549 | { |
02e2da45 | 550 | return dev->parent_bus; |
aae9460e PB |
551 | } |
552 | ||
aae9460e PB |
553 | void qdev_init_gpio_in(DeviceState *dev, qemu_irq_handler handler, int n) |
554 | { | |
555 | assert(dev->num_gpio_in == 0); | |
556 | dev->num_gpio_in = n; | |
557 | dev->gpio_in = qemu_allocate_irqs(handler, dev, n); | |
558 | } | |
559 | ||
560 | void qdev_init_gpio_out(DeviceState *dev, qemu_irq *pins, int n) | |
561 | { | |
562 | assert(dev->num_gpio_out == 0); | |
563 | dev->num_gpio_out = n; | |
564 | dev->gpio_out = pins; | |
565 | } | |
566 | ||
567 | qemu_irq qdev_get_gpio_in(DeviceState *dev, int n) | |
568 | { | |
569 | assert(n >= 0 && n < dev->num_gpio_in); | |
570 | return dev->gpio_in[n]; | |
571 | } | |
572 | ||
573 | void qdev_connect_gpio_out(DeviceState * dev, int n, qemu_irq pin) | |
574 | { | |
575 | assert(n >= 0 && n < dev->num_gpio_out); | |
576 | dev->gpio_out[n] = pin; | |
577 | } | |
578 | ||
ed16ab5a GH |
579 | void qdev_set_nic_properties(DeviceState *dev, NICInfo *nd) |
580 | { | |
6eed1856 | 581 | qdev_prop_set_macaddr(dev, "mac", nd->macaddr.a); |
ed16ab5a GH |
582 | if (nd->vlan) |
583 | qdev_prop_set_vlan(dev, "vlan", nd->vlan); | |
584 | if (nd->netdev) | |
585 | qdev_prop_set_netdev(dev, "netdev", nd->netdev); | |
75422b0d | 586 | if (nd->nvectors != DEV_NVECTORS_UNSPECIFIED && |
97b15621 GH |
587 | qdev_prop_exists(dev, "vectors")) { |
588 | qdev_prop_set_uint32(dev, "vectors", nd->nvectors); | |
589 | } | |
48e2faf2 | 590 | nd->instantiated = 1; |
ed16ab5a GH |
591 | } |
592 | ||
02e2da45 | 593 | BusState *qdev_get_child_bus(DeviceState *dev, const char *name) |
4d6ae674 | 594 | { |
02e2da45 | 595 | BusState *bus; |
4d6ae674 | 596 | |
72cf2d4f | 597 | QLIST_FOREACH(bus, &dev->child_bus, sibling) { |
4d6ae674 | 598 | if (strcmp(name, bus->name) == 0) { |
02e2da45 | 599 | return bus; |
4d6ae674 PB |
600 | } |
601 | } | |
602 | return NULL; | |
603 | } | |
604 | ||
81699d8a AL |
605 | int qbus_walk_children(BusState *bus, qdev_walkerfn *devfn, |
606 | qbus_walkerfn *busfn, void *opaque) | |
607 | { | |
608 | DeviceState *dev; | |
609 | int err; | |
610 | ||
611 | if (busfn) { | |
612 | err = busfn(bus, opaque); | |
613 | if (err) { | |
614 | return err; | |
615 | } | |
616 | } | |
617 | ||
d8bb00d6 | 618 | QTAILQ_FOREACH(dev, &bus->children, sibling) { |
81699d8a AL |
619 | err = qdev_walk_children(dev, devfn, busfn, opaque); |
620 | if (err < 0) { | |
621 | return err; | |
622 | } | |
623 | } | |
624 | ||
625 | return 0; | |
626 | } | |
627 | ||
628 | int qdev_walk_children(DeviceState *dev, qdev_walkerfn *devfn, | |
629 | qbus_walkerfn *busfn, void *opaque) | |
630 | { | |
631 | BusState *bus; | |
632 | int err; | |
633 | ||
634 | if (devfn) { | |
635 | err = devfn(dev, opaque); | |
636 | if (err) { | |
637 | return err; | |
638 | } | |
639 | } | |
640 | ||
641 | QLIST_FOREACH(bus, &dev->child_bus, sibling) { | |
642 | err = qbus_walk_children(bus, devfn, busfn, opaque); | |
643 | if (err < 0) { | |
644 | return err; | |
645 | } | |
646 | } | |
647 | ||
648 | return 0; | |
649 | } | |
650 | ||
8ffb1bcf GH |
651 | static BusState *qbus_find_recursive(BusState *bus, const char *name, |
652 | const BusInfo *info) | |
653 | { | |
654 | DeviceState *dev; | |
655 | BusState *child, *ret; | |
656 | int match = 1; | |
657 | ||
658 | if (name && (strcmp(bus->name, name) != 0)) { | |
659 | match = 0; | |
660 | } | |
661 | if (info && (bus->info != info)) { | |
662 | match = 0; | |
663 | } | |
664 | if (match) { | |
665 | return bus; | |
666 | } | |
667 | ||
d8bb00d6 | 668 | QTAILQ_FOREACH(dev, &bus->children, sibling) { |
72cf2d4f | 669 | QLIST_FOREACH(child, &dev->child_bus, sibling) { |
8ffb1bcf GH |
670 | ret = qbus_find_recursive(child, name, info); |
671 | if (ret) { | |
672 | return ret; | |
673 | } | |
674 | } | |
675 | } | |
676 | return NULL; | |
677 | } | |
678 | ||
a2ee6b4f | 679 | DeviceState *qdev_find_recursive(BusState *bus, const char *id) |
3418bd25 GH |
680 | { |
681 | DeviceState *dev, *ret; | |
682 | BusState *child; | |
683 | ||
d8bb00d6 | 684 | QTAILQ_FOREACH(dev, &bus->children, sibling) { |
3418bd25 GH |
685 | if (dev->id && strcmp(dev->id, id) == 0) |
686 | return dev; | |
687 | QLIST_FOREACH(child, &dev->child_bus, sibling) { | |
688 | ret = qdev_find_recursive(child, id); | |
689 | if (ret) { | |
690 | return ret; | |
691 | } | |
692 | } | |
693 | } | |
694 | return NULL; | |
695 | } | |
696 | ||
53db16b5 | 697 | static void qbus_list_bus(DeviceState *dev) |
8ffb1bcf GH |
698 | { |
699 | BusState *child; | |
700 | const char *sep = " "; | |
8ffb1bcf | 701 | |
53db16b5 MA |
702 | error_printf("child busses at \"%s\":", |
703 | dev->id ? dev->id : dev->info->name); | |
72cf2d4f | 704 | QLIST_FOREACH(child, &dev->child_bus, sibling) { |
53db16b5 | 705 | error_printf("%s\"%s\"", sep, child->name); |
8ffb1bcf GH |
706 | sep = ", "; |
707 | } | |
53db16b5 | 708 | error_printf("\n"); |
8ffb1bcf GH |
709 | } |
710 | ||
53db16b5 | 711 | static void qbus_list_dev(BusState *bus) |
8ffb1bcf GH |
712 | { |
713 | DeviceState *dev; | |
714 | const char *sep = " "; | |
8ffb1bcf | 715 | |
53db16b5 | 716 | error_printf("devices at \"%s\":", bus->name); |
d8bb00d6 | 717 | QTAILQ_FOREACH(dev, &bus->children, sibling) { |
53db16b5 | 718 | error_printf("%s\"%s\"", sep, dev->info->name); |
8ffb1bcf | 719 | if (dev->id) |
53db16b5 | 720 | error_printf("/\"%s\"", dev->id); |
8ffb1bcf GH |
721 | sep = ", "; |
722 | } | |
53db16b5 | 723 | error_printf("\n"); |
8ffb1bcf GH |
724 | } |
725 | ||
726 | static BusState *qbus_find_bus(DeviceState *dev, char *elem) | |
727 | { | |
728 | BusState *child; | |
729 | ||
72cf2d4f | 730 | QLIST_FOREACH(child, &dev->child_bus, sibling) { |
8ffb1bcf GH |
731 | if (strcmp(child->name, elem) == 0) { |
732 | return child; | |
733 | } | |
734 | } | |
735 | return NULL; | |
736 | } | |
737 | ||
738 | static DeviceState *qbus_find_dev(BusState *bus, char *elem) | |
739 | { | |
740 | DeviceState *dev; | |
741 | ||
742 | /* | |
743 | * try to match in order: | |
744 | * (1) instance id, if present | |
745 | * (2) driver name | |
746 | * (3) driver alias, if present | |
747 | */ | |
d8bb00d6 | 748 | QTAILQ_FOREACH(dev, &bus->children, sibling) { |
8ffb1bcf GH |
749 | if (dev->id && strcmp(dev->id, elem) == 0) { |
750 | return dev; | |
751 | } | |
752 | } | |
d8bb00d6 | 753 | QTAILQ_FOREACH(dev, &bus->children, sibling) { |
8ffb1bcf GH |
754 | if (strcmp(dev->info->name, elem) == 0) { |
755 | return dev; | |
756 | } | |
757 | } | |
d8bb00d6 | 758 | QTAILQ_FOREACH(dev, &bus->children, sibling) { |
8ffb1bcf GH |
759 | if (dev->info->alias && strcmp(dev->info->alias, elem) == 0) { |
760 | return dev; | |
761 | } | |
762 | } | |
763 | return NULL; | |
764 | } | |
765 | ||
766 | static BusState *qbus_find(const char *path) | |
767 | { | |
768 | DeviceState *dev; | |
769 | BusState *bus; | |
53db16b5 | 770 | char elem[128]; |
8ffb1bcf GH |
771 | int pos, len; |
772 | ||
773 | /* find start element */ | |
774 | if (path[0] == '/') { | |
775 | bus = main_system_bus; | |
776 | pos = 0; | |
777 | } else { | |
778 | if (sscanf(path, "%127[^/]%n", elem, &len) != 1) { | |
fc98eb43 MA |
779 | assert(!path[0]); |
780 | elem[0] = len = 0; | |
8ffb1bcf GH |
781 | } |
782 | bus = qbus_find_recursive(main_system_bus, elem, NULL); | |
783 | if (!bus) { | |
ac8dae67 | 784 | qerror_report(QERR_BUS_NOT_FOUND, elem); |
8ffb1bcf GH |
785 | return NULL; |
786 | } | |
787 | pos = len; | |
788 | } | |
789 | ||
790 | for (;;) { | |
fc98eb43 MA |
791 | assert(path[pos] == '/' || !path[pos]); |
792 | while (path[pos] == '/') { | |
793 | pos++; | |
794 | } | |
8ffb1bcf | 795 | if (path[pos] == '\0') { |
8ffb1bcf GH |
796 | return bus; |
797 | } | |
798 | ||
799 | /* find device */ | |
fc98eb43 MA |
800 | if (sscanf(path+pos, "%127[^/]%n", elem, &len) != 1) { |
801 | assert(0); | |
802 | elem[0] = len = 0; | |
8ffb1bcf GH |
803 | } |
804 | pos += len; | |
805 | dev = qbus_find_dev(bus, elem); | |
806 | if (!dev) { | |
ac8dae67 | 807 | qerror_report(QERR_DEVICE_NOT_FOUND, elem); |
8bc27249 MA |
808 | if (!monitor_cur_is_qmp()) { |
809 | qbus_list_dev(bus); | |
810 | } | |
8ffb1bcf GH |
811 | return NULL; |
812 | } | |
fc98eb43 MA |
813 | |
814 | assert(path[pos] == '/' || !path[pos]); | |
815 | while (path[pos] == '/') { | |
816 | pos++; | |
817 | } | |
8ffb1bcf GH |
818 | if (path[pos] == '\0') { |
819 | /* last specified element is a device. If it has exactly | |
820 | * one child bus accept it nevertheless */ | |
821 | switch (dev->num_child_bus) { | |
822 | case 0: | |
ac8dae67 | 823 | qerror_report(QERR_DEVICE_NO_BUS, elem); |
8ffb1bcf GH |
824 | return NULL; |
825 | case 1: | |
72cf2d4f | 826 | return QLIST_FIRST(&dev->child_bus); |
8ffb1bcf | 827 | default: |
ac8dae67 | 828 | qerror_report(QERR_DEVICE_MULTIPLE_BUSSES, elem); |
8bc27249 MA |
829 | if (!monitor_cur_is_qmp()) { |
830 | qbus_list_bus(dev); | |
831 | } | |
8ffb1bcf GH |
832 | return NULL; |
833 | } | |
834 | } | |
835 | ||
836 | /* find bus */ | |
fc98eb43 MA |
837 | if (sscanf(path+pos, "%127[^/]%n", elem, &len) != 1) { |
838 | assert(0); | |
839 | elem[0] = len = 0; | |
8ffb1bcf GH |
840 | } |
841 | pos += len; | |
842 | bus = qbus_find_bus(dev, elem); | |
843 | if (!bus) { | |
ac8dae67 | 844 | qerror_report(QERR_BUS_NOT_FOUND, elem); |
8bc27249 MA |
845 | if (!monitor_cur_is_qmp()) { |
846 | qbus_list_bus(dev); | |
847 | } | |
8ffb1bcf GH |
848 | return NULL; |
849 | } | |
850 | } | |
851 | } | |
852 | ||
cd739fb6 GH |
853 | void qbus_create_inplace(BusState *bus, BusInfo *info, |
854 | DeviceState *parent, const char *name) | |
02e2da45 | 855 | { |
d271de9f GH |
856 | char *buf; |
857 | int i,len; | |
02e2da45 | 858 | |
10c4c98a | 859 | bus->info = info; |
02e2da45 | 860 | bus->parent = parent; |
d271de9f GH |
861 | |
862 | if (name) { | |
863 | /* use supplied name */ | |
7267c094 | 864 | bus->name = g_strdup(name); |
d271de9f GH |
865 | } else if (parent && parent->id) { |
866 | /* parent device has id -> use it for bus name */ | |
867 | len = strlen(parent->id) + 16; | |
7267c094 | 868 | buf = g_malloc(len); |
d271de9f GH |
869 | snprintf(buf, len, "%s.%d", parent->id, parent->num_child_bus); |
870 | bus->name = buf; | |
871 | } else { | |
872 | /* no id -> use lowercase bus type for bus name */ | |
873 | len = strlen(info->name) + 16; | |
7267c094 | 874 | buf = g_malloc(len); |
d271de9f GH |
875 | len = snprintf(buf, len, "%s.%d", info->name, |
876 | parent ? parent->num_child_bus : 0); | |
877 | for (i = 0; i < len; i++) | |
bb87ece5 | 878 | buf[i] = qemu_tolower(buf[i]); |
d271de9f GH |
879 | bus->name = buf; |
880 | } | |
881 | ||
d8bb00d6 | 882 | QTAILQ_INIT(&bus->children); |
02e2da45 | 883 | if (parent) { |
72cf2d4f | 884 | QLIST_INSERT_HEAD(&parent->child_bus, bus, sibling); |
d271de9f | 885 | parent->num_child_bus++; |
80376c3f IY |
886 | } else if (bus != main_system_bus) { |
887 | /* TODO: once all bus devices are qdevified, | |
888 | only reset handler for main_system_bus should be registered here. */ | |
889 | qemu_register_reset(qbus_reset_all_fn, bus); | |
02e2da45 | 890 | } |
cd739fb6 GH |
891 | } |
892 | ||
893 | BusState *qbus_create(BusInfo *info, DeviceState *parent, const char *name) | |
894 | { | |
895 | BusState *bus; | |
896 | ||
7267c094 | 897 | bus = g_malloc0(info->size); |
cd739fb6 GH |
898 | bus->qdev_allocated = 1; |
899 | qbus_create_inplace(bus, info, parent, name); | |
02e2da45 PB |
900 | return bus; |
901 | } | |
cae4956e | 902 | |
2da8bb92 IY |
903 | static void main_system_bus_create(void) |
904 | { | |
905 | /* assign main_system_bus before qbus_create_inplace() | |
906 | * in order to make "if (bus != main_system_bus)" work */ | |
7267c094 | 907 | main_system_bus = g_malloc0(system_bus_info.size); |
2da8bb92 IY |
908 | main_system_bus->qdev_allocated = 1; |
909 | qbus_create_inplace(main_system_bus, &system_bus_info, NULL, | |
910 | "main-system-bus"); | |
911 | } | |
912 | ||
131ec1bd GH |
913 | void qbus_free(BusState *bus) |
914 | { | |
915 | DeviceState *dev; | |
916 | ||
d8bb00d6 | 917 | while ((dev = QTAILQ_FIRST(&bus->children)) != NULL) { |
131ec1bd GH |
918 | qdev_free(dev); |
919 | } | |
920 | if (bus->parent) { | |
921 | QLIST_REMOVE(bus, sibling); | |
922 | bus->parent->num_child_bus--; | |
80376c3f IY |
923 | } else { |
924 | assert(bus != main_system_bus); /* main_system_bus is never freed */ | |
925 | qemu_unregister_reset(qbus_reset_all_fn, bus); | |
131ec1bd | 926 | } |
7267c094 | 927 | g_free((void*)bus->name); |
131ec1bd | 928 | if (bus->qdev_allocated) { |
7267c094 | 929 | g_free(bus); |
131ec1bd GH |
930 | } |
931 | } | |
932 | ||
cae4956e GH |
933 | #define qdev_printf(fmt, ...) monitor_printf(mon, "%*s" fmt, indent, "", ## __VA_ARGS__) |
934 | static void qbus_print(Monitor *mon, BusState *bus, int indent); | |
935 | ||
ee6847d1 GH |
936 | static void qdev_print_props(Monitor *mon, DeviceState *dev, Property *props, |
937 | const char *prefix, int indent) | |
938 | { | |
939 | char buf[64]; | |
940 | ||
941 | if (!props) | |
942 | return; | |
943 | while (props->name) { | |
036f7166 MA |
944 | /* |
945 | * TODO Properties without a print method are just for dirty | |
946 | * hacks. qdev_prop_ptr is the only such PropertyInfo. It's | |
947 | * marked for removal. The test props->info->print should be | |
948 | * removed along with it. | |
949 | */ | |
ee6847d1 GH |
950 | if (props->info->print) { |
951 | props->info->print(dev, props, buf, sizeof(buf)); | |
952 | qdev_printf("%s-prop: %s = %s\n", prefix, props->name, buf); | |
953 | } | |
954 | props++; | |
955 | } | |
956 | } | |
957 | ||
cae4956e GH |
958 | static void qdev_print(Monitor *mon, DeviceState *dev, int indent) |
959 | { | |
cae4956e | 960 | BusState *child; |
ccb63de3 GH |
961 | qdev_printf("dev: %s, id \"%s\"\n", dev->info->name, |
962 | dev->id ? dev->id : ""); | |
cae4956e GH |
963 | indent += 2; |
964 | if (dev->num_gpio_in) { | |
965 | qdev_printf("gpio-in %d\n", dev->num_gpio_in); | |
966 | } | |
967 | if (dev->num_gpio_out) { | |
968 | qdev_printf("gpio-out %d\n", dev->num_gpio_out); | |
969 | } | |
ee6847d1 GH |
970 | qdev_print_props(mon, dev, dev->info->props, "dev", indent); |
971 | qdev_print_props(mon, dev, dev->parent_bus->info->props, "bus", indent); | |
10c4c98a GH |
972 | if (dev->parent_bus->info->print_dev) |
973 | dev->parent_bus->info->print_dev(mon, dev, indent); | |
72cf2d4f | 974 | QLIST_FOREACH(child, &dev->child_bus, sibling) { |
cae4956e GH |
975 | qbus_print(mon, child, indent); |
976 | } | |
977 | } | |
978 | ||
979 | static void qbus_print(Monitor *mon, BusState *bus, int indent) | |
980 | { | |
981 | struct DeviceState *dev; | |
982 | ||
983 | qdev_printf("bus: %s\n", bus->name); | |
984 | indent += 2; | |
10c4c98a | 985 | qdev_printf("type %s\n", bus->info->name); |
d8bb00d6 | 986 | QTAILQ_FOREACH(dev, &bus->children, sibling) { |
cae4956e GH |
987 | qdev_print(mon, dev, indent); |
988 | } | |
989 | } | |
990 | #undef qdev_printf | |
991 | ||
992 | void do_info_qtree(Monitor *mon) | |
993 | { | |
994 | if (main_system_bus) | |
995 | qbus_print(mon, main_system_bus, 0); | |
996 | } | |
9316d30f | 997 | |
f6c64e0e | 998 | void do_info_qdm(Monitor *mon) |
9316d30f GH |
999 | { |
1000 | DeviceInfo *info; | |
9316d30f GH |
1001 | |
1002 | for (info = device_info_list; info != NULL; info = info->next) { | |
8a9662ca | 1003 | qdev_print_devinfo(info); |
9316d30f GH |
1004 | } |
1005 | } | |
3418bd25 | 1006 | |
8bc27249 | 1007 | int do_device_add(Monitor *mon, const QDict *qdict, QObject **ret_data) |
3418bd25 GH |
1008 | { |
1009 | QemuOpts *opts; | |
1010 | ||
3329f07b | 1011 | opts = qemu_opts_from_qdict(qemu_find_opts("device"), qdict); |
8bc27249 MA |
1012 | if (!opts) { |
1013 | return -1; | |
1014 | } | |
1015 | if (!monitor_cur_is_qmp() && qdev_device_help(opts)) { | |
1016 | qemu_opts_del(opts); | |
1017 | return 0; | |
0f853a38 | 1018 | } |
8bc27249 MA |
1019 | if (!qdev_device_add(opts)) { |
1020 | qemu_opts_del(opts); | |
1021 | return -1; | |
1022 | } | |
1023 | return 0; | |
3418bd25 GH |
1024 | } |
1025 | ||
17a38eaa | 1026 | int do_device_del(Monitor *mon, const QDict *qdict, QObject **ret_data) |
3418bd25 GH |
1027 | { |
1028 | const char *id = qdict_get_str(qdict, "id"); | |
1029 | DeviceState *dev; | |
1030 | ||
1031 | dev = qdev_find_recursive(main_system_bus, id); | |
1032 | if (NULL == dev) { | |
17a38eaa MA |
1033 | qerror_report(QERR_DEVICE_NOT_FOUND, id); |
1034 | return -1; | |
3418bd25 | 1035 | } |
17a38eaa | 1036 | return qdev_unplug(dev); |
3418bd25 | 1037 | } |
1ca4d09a GN |
1038 | |
1039 | static int qdev_get_fw_dev_path_helper(DeviceState *dev, char *p, int size) | |
1040 | { | |
1041 | int l = 0; | |
1042 | ||
1043 | if (dev && dev->parent_bus) { | |
1044 | char *d; | |
1045 | l = qdev_get_fw_dev_path_helper(dev->parent_bus->parent, p, size); | |
1046 | if (dev->parent_bus->info->get_fw_dev_path) { | |
1047 | d = dev->parent_bus->info->get_fw_dev_path(dev); | |
1048 | l += snprintf(p + l, size - l, "%s", d); | |
7267c094 | 1049 | g_free(d); |
1ca4d09a GN |
1050 | } else { |
1051 | l += snprintf(p + l, size - l, "%s", dev->info->name); | |
1052 | } | |
1053 | } | |
1054 | l += snprintf(p + l , size - l, "/"); | |
1055 | ||
1056 | return l; | |
1057 | } | |
1058 | ||
1059 | char* qdev_get_fw_dev_path(DeviceState *dev) | |
1060 | { | |
1061 | char path[128]; | |
1062 | int l; | |
1063 | ||
1064 | l = qdev_get_fw_dev_path_helper(dev, path, 128); | |
1065 | ||
1066 | path[l-1] = '\0'; | |
1067 | ||
1068 | return strdup(path); | |
1069 | } | |
85ed303b | 1070 | |
cd34d667 AL |
1071 | char *qdev_get_type(DeviceState *dev, Error **errp) |
1072 | { | |
1073 | return g_strdup(dev->info->name); | |
1074 | } | |
1075 | ||
85ed303b AL |
1076 | void qdev_ref(DeviceState *dev) |
1077 | { | |
1078 | dev->ref++; | |
1079 | } | |
1080 | ||
1081 | void qdev_unref(DeviceState *dev) | |
1082 | { | |
1083 | g_assert(dev->ref > 0); | |
1084 | dev->ref--; | |
1085 | } | |
44677ded AL |
1086 | |
1087 | void qdev_property_add(DeviceState *dev, const char *name, const char *type, | |
1088 | DevicePropertyAccessor *get, DevicePropertyAccessor *set, | |
1089 | DevicePropertyRelease *release, | |
1090 | void *opaque, Error **errp) | |
1091 | { | |
1092 | DeviceProperty *prop = g_malloc0(sizeof(*prop)); | |
1093 | ||
1094 | prop->name = g_strdup(name); | |
1095 | prop->type = g_strdup(type); | |
1096 | ||
1097 | prop->get = get; | |
1098 | prop->set = set; | |
1099 | prop->release = release; | |
1100 | prop->opaque = opaque; | |
1101 | ||
1102 | QTAILQ_INSERT_TAIL(&dev->properties, prop, node); | |
1103 | } | |
1104 | ||
1105 | static DeviceProperty *qdev_property_find(DeviceState *dev, const char *name) | |
1106 | { | |
1107 | DeviceProperty *prop; | |
1108 | ||
1109 | QTAILQ_FOREACH(prop, &dev->properties, node) { | |
1110 | if (strcmp(prop->name, name) == 0) { | |
1111 | return prop; | |
1112 | } | |
1113 | } | |
1114 | ||
1115 | return NULL; | |
1116 | } | |
1117 | ||
1118 | void qdev_property_get(DeviceState *dev, Visitor *v, const char *name, | |
1119 | Error **errp) | |
1120 | { | |
1121 | DeviceProperty *prop = qdev_property_find(dev, name); | |
1122 | ||
1123 | if (prop == NULL) { | |
1124 | error_set(errp, QERR_PROPERTY_NOT_FOUND, dev->id?:"", name); | |
1125 | return; | |
1126 | } | |
1127 | ||
1128 | if (!prop->get) { | |
1129 | error_set(errp, QERR_PERMISSION_DENIED); | |
1130 | } else { | |
1131 | prop->get(dev, v, prop->opaque, name, errp); | |
1132 | } | |
1133 | } | |
1134 | ||
1135 | void qdev_property_set(DeviceState *dev, Visitor *v, const char *name, | |
1136 | Error **errp) | |
1137 | { | |
1138 | DeviceProperty *prop = qdev_property_find(dev, name); | |
1139 | ||
1140 | if (prop == NULL) { | |
1141 | error_set(errp, QERR_PROPERTY_NOT_FOUND, dev->id?:"", name); | |
1142 | return; | |
1143 | } | |
1144 | ||
1145 | if (!prop->set) { | |
1146 | error_set(errp, QERR_PERMISSION_DENIED); | |
1147 | } else { | |
0d41d9aa | 1148 | prop->set(dev, v, prop->opaque, name, errp); |
44677ded AL |
1149 | } |
1150 | } | |
1151 | ||
1152 | const char *qdev_property_get_type(DeviceState *dev, const char *name, Error **errp) | |
1153 | { | |
1154 | DeviceProperty *prop = qdev_property_find(dev, name); | |
1155 | ||
1156 | if (prop == NULL) { | |
1157 | error_set(errp, QERR_PROPERTY_NOT_FOUND, dev->id?:"", name); | |
1158 | return NULL; | |
1159 | } | |
1160 | ||
1161 | return prop->type; | |
1162 | } | |
a5296ca9 AL |
1163 | |
1164 | /** | |
1165 | * Legacy property handling | |
1166 | */ | |
1167 | ||
1168 | static void qdev_get_legacy_property(DeviceState *dev, Visitor *v, void *opaque, | |
1169 | const char *name, Error **errp) | |
1170 | { | |
1171 | Property *prop = opaque; | |
1172 | ||
e3cb6ba6 PB |
1173 | char buffer[1024]; |
1174 | char *ptr = buffer; | |
a5296ca9 | 1175 | |
e3cb6ba6 PB |
1176 | prop->info->print(dev, prop, buffer, sizeof(buffer)); |
1177 | visit_type_str(v, &ptr, name, errp); | |
a5296ca9 AL |
1178 | } |
1179 | ||
1180 | static void qdev_set_legacy_property(DeviceState *dev, Visitor *v, void *opaque, | |
1181 | const char *name, Error **errp) | |
1182 | { | |
1183 | Property *prop = opaque; | |
e3cb6ba6 PB |
1184 | Error *local_err = NULL; |
1185 | char *ptr = NULL; | |
1186 | int ret; | |
a5296ca9 AL |
1187 | |
1188 | if (dev->state != DEV_STATE_CREATED) { | |
1189 | error_set(errp, QERR_PERMISSION_DENIED); | |
1190 | return; | |
1191 | } | |
1192 | ||
e3cb6ba6 PB |
1193 | visit_type_str(v, &ptr, name, &local_err); |
1194 | if (local_err) { | |
1195 | error_propagate(errp, local_err); | |
1196 | return; | |
1197 | } | |
a5296ca9 | 1198 | |
e3cb6ba6 | 1199 | ret = prop->info->parse(dev, prop, ptr); |
7db4c4e8 | 1200 | error_set_from_qdev_prop_error(errp, ret, dev, prop, ptr); |
e3cb6ba6 | 1201 | g_free(ptr); |
a5296ca9 AL |
1202 | } |
1203 | ||
1204 | /** | |
1205 | * @qdev_add_legacy_property - adds a legacy property | |
1206 | * | |
1207 | * Do not use this is new code! Properties added through this interface will | |
ca2cc788 | 1208 | * be given names and types in the "legacy" namespace. |
a5296ca9 AL |
1209 | * |
1210 | * Legacy properties are always processed as strings. The format of the string | |
1211 | * depends on the property type. | |
1212 | */ | |
1213 | void qdev_property_add_legacy(DeviceState *dev, Property *prop, | |
1214 | Error **errp) | |
1215 | { | |
ca2cc788 | 1216 | gchar *name, *type; |
a5296ca9 | 1217 | |
ca2cc788 | 1218 | name = g_strdup_printf("legacy-%s", prop->name); |
cafe5bdb PB |
1219 | type = g_strdup_printf("legacy<%s>", |
1220 | prop->info->legacy_name ?: prop->info->name); | |
a5296ca9 | 1221 | |
ca2cc788 | 1222 | qdev_property_add(dev, name, type, |
e3cb6ba6 PB |
1223 | prop->info->print ? qdev_get_legacy_property : NULL, |
1224 | prop->info->parse ? qdev_set_legacy_property : NULL, | |
a5296ca9 AL |
1225 | NULL, |
1226 | prop, errp); | |
1227 | ||
1228 | g_free(type); | |
ca2cc788 PB |
1229 | g_free(name); |
1230 | } | |
1231 | ||
1232 | /** | |
1233 | * @qdev_property_add_static - add a @Property to a device. | |
1234 | * | |
1235 | * Static properties access data in a struct. The actual type of the | |
1236 | * property and the field depends on the property type. | |
1237 | */ | |
1238 | void qdev_property_add_static(DeviceState *dev, Property *prop, | |
1239 | Error **errp) | |
1240 | { | |
1241 | qdev_property_add(dev, prop->name, prop->info->name, | |
1242 | prop->info->get, prop->info->set, | |
1243 | NULL, | |
1244 | prop, errp); | |
a5296ca9 | 1245 | } |
a10f07a7 AL |
1246 | |
1247 | DeviceState *qdev_get_root(void) | |
1248 | { | |
1249 | static DeviceState *qdev_root; | |
1250 | ||
1251 | if (!qdev_root) { | |
1252 | qdev_root = qdev_create(NULL, "container"); | |
1253 | qdev_init_nofail(qdev_root); | |
1254 | } | |
1255 | ||
1256 | return qdev_root; | |
1257 | } | |
f9fbd2fd | 1258 | |
3de1c3e8 AL |
1259 | static void qdev_get_child_property(DeviceState *dev, Visitor *v, void *opaque, |
1260 | const char *name, Error **errp) | |
1261 | { | |
1262 | DeviceState *child = opaque; | |
1263 | gchar *path; | |
1264 | ||
1265 | path = qdev_get_canonical_path(child); | |
1266 | visit_type_str(v, &path, name, errp); | |
1267 | g_free(path); | |
1268 | } | |
1269 | ||
024a6fbd AL |
1270 | static void qdev_release_child_property(DeviceState *dev, const char *name, |
1271 | void *opaque) | |
1272 | { | |
1273 | DeviceState *child = opaque; | |
1274 | ||
1275 | qdev_unref(child); | |
1276 | } | |
1277 | ||
3de1c3e8 AL |
1278 | void qdev_property_add_child(DeviceState *dev, const char *name, |
1279 | DeviceState *child, Error **errp) | |
1280 | { | |
1281 | gchar *type; | |
1282 | ||
1283 | type = g_strdup_printf("child<%s>", child->info->name); | |
1284 | ||
1285 | qdev_property_add(dev, name, type, qdev_get_child_property, | |
024a6fbd AL |
1286 | NULL, qdev_release_child_property, |
1287 | child, errp); | |
3de1c3e8 AL |
1288 | |
1289 | qdev_ref(child); | |
b2b6c39a AL |
1290 | g_assert(child->parent == NULL); |
1291 | child->parent = dev; | |
3de1c3e8 AL |
1292 | |
1293 | g_free(type); | |
1294 | } | |
1295 | ||
83e94fb8 AL |
1296 | static void qdev_get_link_property(DeviceState *dev, Visitor *v, void *opaque, |
1297 | const char *name, Error **errp) | |
1298 | { | |
1299 | DeviceState **child = opaque; | |
1300 | gchar *path; | |
1301 | ||
1302 | if (*child) { | |
1303 | path = qdev_get_canonical_path(*child); | |
1304 | visit_type_str(v, &path, name, errp); | |
1305 | g_free(path); | |
1306 | } else { | |
1307 | path = (gchar *)""; | |
1308 | visit_type_str(v, &path, name, errp); | |
1309 | } | |
1310 | } | |
1311 | ||
1312 | static void qdev_set_link_property(DeviceState *dev, Visitor *v, void *opaque, | |
1313 | const char *name, Error **errp) | |
1314 | { | |
1315 | DeviceState **child = opaque; | |
1316 | bool ambiguous = false; | |
1317 | const char *type; | |
1318 | char *path; | |
1319 | ||
1320 | type = qdev_property_get_type(dev, name, NULL); | |
1321 | ||
1322 | visit_type_str(v, &path, name, errp); | |
1323 | ||
1324 | if (*child) { | |
1325 | qdev_unref(*child); | |
1326 | } | |
1327 | ||
1328 | if (strcmp(path, "") != 0) { | |
1329 | DeviceState *target; | |
1330 | ||
1331 | target = qdev_resolve_path(path, &ambiguous); | |
1332 | if (target) { | |
1333 | gchar *target_type; | |
1334 | ||
1335 | target_type = g_strdup_printf("link<%s>", target->info->name); | |
1336 | if (strcmp(target_type, type) == 0) { | |
1337 | *child = target; | |
1338 | qdev_ref(target); | |
1339 | } else { | |
1340 | error_set(errp, QERR_INVALID_PARAMETER_TYPE, name, type); | |
1341 | } | |
1342 | ||
1343 | g_free(target_type); | |
1344 | } else { | |
1345 | error_set(errp, QERR_DEVICE_NOT_FOUND, path); | |
1346 | } | |
1347 | } else { | |
1348 | *child = NULL; | |
1349 | } | |
1350 | ||
1351 | g_free(path); | |
1352 | } | |
1353 | ||
1354 | void qdev_property_add_link(DeviceState *dev, const char *name, | |
1355 | const char *type, DeviceState **child, | |
1356 | Error **errp) | |
1357 | { | |
1358 | gchar *full_type; | |
1359 | ||
1360 | full_type = g_strdup_printf("link<%s>", type); | |
1361 | ||
1362 | qdev_property_add(dev, name, full_type, | |
1363 | qdev_get_link_property, | |
1364 | qdev_set_link_property, | |
1365 | NULL, child, errp); | |
1366 | ||
1367 | g_free(full_type); | |
1368 | } | |
1369 | ||
b2b6c39a | 1370 | gchar *qdev_get_canonical_path(DeviceState *dev) |
f9fbd2fd | 1371 | { |
b2b6c39a AL |
1372 | DeviceState *root = qdev_get_root(); |
1373 | char *newpath = NULL, *path = NULL; | |
f9fbd2fd | 1374 | |
b2b6c39a AL |
1375 | while (dev != root) { |
1376 | DeviceProperty *prop = NULL; | |
f9fbd2fd | 1377 | |
b2b6c39a | 1378 | g_assert(dev->parent != NULL); |
f9fbd2fd | 1379 | |
b2b6c39a AL |
1380 | QTAILQ_FOREACH(prop, &dev->parent->properties, node) { |
1381 | if (!strstart(prop->type, "child<", NULL)) { | |
1382 | continue; | |
1383 | } | |
f9fbd2fd | 1384 | |
b2b6c39a AL |
1385 | if (prop->opaque == dev) { |
1386 | if (path) { | |
1387 | newpath = g_strdup_printf("%s/%s", prop->name, path); | |
1388 | g_free(path); | |
1389 | path = newpath; | |
1390 | } else { | |
1391 | path = g_strdup(prop->name); | |
1392 | } | |
1393 | break; | |
1394 | } | |
f9fbd2fd AL |
1395 | } |
1396 | ||
b2b6c39a | 1397 | g_assert(prop != NULL); |
f9fbd2fd | 1398 | |
b2b6c39a | 1399 | dev = dev->parent; |
f9fbd2fd AL |
1400 | } |
1401 | ||
f9fbd2fd AL |
1402 | newpath = g_strdup_printf("/%s", path); |
1403 | g_free(path); | |
1404 | ||
1405 | return newpath; | |
1406 | } | |
dc45c21f AL |
1407 | |
1408 | static DeviceState *qdev_resolve_abs_path(DeviceState *parent, | |
1409 | gchar **parts, | |
1410 | int index) | |
1411 | { | |
1412 | DeviceProperty *prop; | |
1413 | DeviceState *child; | |
1414 | ||
1415 | if (parts[index] == NULL) { | |
1416 | return parent; | |
1417 | } | |
1418 | ||
1419 | if (strcmp(parts[index], "") == 0) { | |
1420 | return qdev_resolve_abs_path(parent, parts, index + 1); | |
1421 | } | |
1422 | ||
1423 | prop = qdev_property_find(parent, parts[index]); | |
1424 | if (prop == NULL) { | |
1425 | return NULL; | |
1426 | } | |
1427 | ||
1428 | child = NULL; | |
1429 | if (strstart(prop->type, "link<", NULL)) { | |
1430 | DeviceState **pchild = prop->opaque; | |
1431 | if (*pchild) { | |
1432 | child = *pchild; | |
1433 | } | |
1434 | } else if (strstart(prop->type, "child<", NULL)) { | |
1435 | child = prop->opaque; | |
1436 | } | |
1437 | ||
1438 | if (!child) { | |
1439 | return NULL; | |
1440 | } | |
1441 | ||
1442 | return qdev_resolve_abs_path(child, parts, index + 1); | |
1443 | } | |
1444 | ||
1445 | static DeviceState *qdev_resolve_partial_path(DeviceState *parent, | |
1446 | gchar **parts, | |
1447 | bool *ambiguous) | |
1448 | { | |
1449 | DeviceState *dev; | |
1450 | DeviceProperty *prop; | |
1451 | ||
1452 | dev = qdev_resolve_abs_path(parent, parts, 0); | |
1453 | ||
1454 | QTAILQ_FOREACH(prop, &parent->properties, node) { | |
1455 | DeviceState *found; | |
1456 | ||
1457 | if (!strstart(prop->type, "child<", NULL)) { | |
1458 | continue; | |
1459 | } | |
1460 | ||
1461 | found = qdev_resolve_partial_path(prop->opaque, parts, ambiguous); | |
1462 | if (found) { | |
1463 | if (dev) { | |
1464 | if (ambiguous) { | |
1465 | *ambiguous = true; | |
1466 | } | |
1467 | return NULL; | |
1468 | } | |
1469 | dev = found; | |
1470 | } | |
1471 | ||
1472 | if (ambiguous && *ambiguous) { | |
1473 | return NULL; | |
1474 | } | |
1475 | } | |
1476 | ||
1477 | return dev; | |
1478 | } | |
1479 | ||
1480 | DeviceState *qdev_resolve_path(const char *path, bool *ambiguous) | |
1481 | { | |
1482 | bool partial_path = true; | |
1483 | DeviceState *dev; | |
1484 | gchar **parts; | |
1485 | ||
1486 | parts = g_strsplit(path, "/", 0); | |
1487 | if (parts == NULL || parts[0] == NULL) { | |
1488 | g_strfreev(parts); | |
1489 | return qdev_get_root(); | |
1490 | } | |
1491 | ||
1492 | if (strcmp(parts[0], "") == 0) { | |
1493 | partial_path = false; | |
1494 | } | |
1495 | ||
1496 | if (partial_path) { | |
1497 | if (ambiguous) { | |
1498 | *ambiguous = false; | |
1499 | } | |
1500 | dev = qdev_resolve_partial_path(qdev_get_root(), parts, ambiguous); | |
1501 | } else { | |
1502 | dev = qdev_resolve_abs_path(qdev_get_root(), parts, 1); | |
1503 | } | |
1504 | ||
1505 | g_strfreev(parts); | |
1506 | ||
1507 | return dev; | |
1508 | } | |
1509 | ||
6a146eba AL |
1510 | typedef struct StringProperty |
1511 | { | |
1512 | char *(*get)(DeviceState *, Error **); | |
1513 | void (*set)(DeviceState *, const char *, Error **); | |
1514 | } StringProperty; | |
1515 | ||
1516 | static void qdev_property_get_str(DeviceState *dev, Visitor *v, void *opaque, | |
1517 | const char *name, Error **errp) | |
1518 | { | |
1519 | StringProperty *prop = opaque; | |
1520 | char *value; | |
1521 | ||
1522 | value = prop->get(dev, errp); | |
1523 | if (value) { | |
1524 | visit_type_str(v, &value, name, errp); | |
1525 | g_free(value); | |
1526 | } | |
1527 | } | |
1528 | ||
1529 | static void qdev_property_set_str(DeviceState *dev, Visitor *v, void *opaque, | |
1530 | const char *name, Error **errp) | |
1531 | { | |
1532 | StringProperty *prop = opaque; | |
1533 | char *value; | |
1534 | Error *local_err = NULL; | |
1535 | ||
1536 | visit_type_str(v, &value, name, &local_err); | |
1537 | if (local_err) { | |
1538 | error_propagate(errp, local_err); | |
1539 | return; | |
1540 | } | |
1541 | ||
1542 | prop->set(dev, value, errp); | |
1543 | g_free(value); | |
1544 | } | |
1545 | ||
1546 | static void qdev_property_release_str(DeviceState *dev, const char *name, | |
1547 | void *opaque) | |
1548 | { | |
1549 | StringProperty *prop = opaque; | |
1550 | g_free(prop); | |
1551 | } | |
1552 | ||
1553 | void qdev_property_add_str(DeviceState *dev, const char *name, | |
1554 | char *(*get)(DeviceState *, Error **), | |
1555 | void (*set)(DeviceState *, const char *, Error **), | |
1556 | Error **errp) | |
1557 | { | |
1558 | StringProperty *prop = g_malloc0(sizeof(*prop)); | |
1559 | ||
1560 | prop->get = get; | |
1561 | prop->set = set; | |
1562 | ||
1563 | qdev_property_add(dev, name, "string", | |
1564 | get ? qdev_property_get_str : NULL, | |
1565 | set ? qdev_property_set_str : NULL, | |
1566 | qdev_property_release_str, | |
1567 | prop, errp); | |
1568 | } | |
1de81d28 AL |
1569 | |
1570 | void qdev_machine_init(void) | |
1571 | { | |
1572 | qdev_get_peripheral_anon(); | |
1573 | qdev_get_peripheral(); | |
1574 | } |