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usb: track altsetting in USBDevice
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1/*
2 * QEMU USB API
5fafdf24 3 *
bb36d470 4 * Copyright (c) 2005 Fabrice Bellard
5fafdf24 5 *
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6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
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24
25#include "block.h"
806b6024 26#include "qdev.h"
72cf2d4f 27#include "qemu-queue.h"
c0f4ce77 28
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29/* Constants related to the USB / PCI interaction */
30#define USB_SBRN 0x60 /* Serial Bus Release Number Register */
31#define USB_RELEASE_1 0x10 /* USB 1.0 */
32#define USB_RELEASE_2 0x20 /* USB 2.0 */
33#define USB_RELEASE_3 0x30 /* USB 3.0 */
34
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35#define USB_TOKEN_SETUP 0x2d
36#define USB_TOKEN_IN 0x69 /* device -> host */
37#define USB_TOKEN_OUT 0xe1 /* host -> device */
38
39/* specific usb messages, also sent in the 'pid' parameter */
40#define USB_MSG_ATTACH 0x100
41#define USB_MSG_DETACH 0x101
42#define USB_MSG_RESET 0x102
43
5fafdf24 44#define USB_RET_NODEV (-1)
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45#define USB_RET_NAK (-2)
46#define USB_RET_STALL (-3)
47#define USB_RET_BABBLE (-4)
4d611c9a 48#define USB_RET_ASYNC (-5)
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49
50#define USB_SPEED_LOW 0
51#define USB_SPEED_FULL 1
52#define USB_SPEED_HIGH 2
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53#define USB_SPEED_SUPER 3
54
55#define USB_SPEED_MASK_LOW (1 << USB_SPEED_LOW)
56#define USB_SPEED_MASK_FULL (1 << USB_SPEED_FULL)
57#define USB_SPEED_MASK_HIGH (1 << USB_SPEED_HIGH)
58#define USB_SPEED_MASK_SUPER (1 << USB_SPEED_SUPER)
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59
60#define USB_STATE_NOTATTACHED 0
61#define USB_STATE_ATTACHED 1
62//#define USB_STATE_POWERED 2
63#define USB_STATE_DEFAULT 3
64//#define USB_STATE_ADDRESS 4
65//#define USB_STATE_CONFIGURED 5
66#define USB_STATE_SUSPENDED 6
67
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68#define USB_CLASS_AUDIO 1
69#define USB_CLASS_COMM 2
70#define USB_CLASS_HID 3
71#define USB_CLASS_PHYSICAL 5
72#define USB_CLASS_STILL_IMAGE 6
73#define USB_CLASS_PRINTER 7
74#define USB_CLASS_MASS_STORAGE 8
75#define USB_CLASS_HUB 9
76#define USB_CLASS_CDC_DATA 0x0a
77#define USB_CLASS_CSCID 0x0b
78#define USB_CLASS_CONTENT_SEC 0x0d
79#define USB_CLASS_APP_SPEC 0xfe
80#define USB_CLASS_VENDOR_SPEC 0xff
81
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82#define USB_DIR_OUT 0
83#define USB_DIR_IN 0x80
84
85#define USB_TYPE_MASK (0x03 << 5)
86#define USB_TYPE_STANDARD (0x00 << 5)
87#define USB_TYPE_CLASS (0x01 << 5)
88#define USB_TYPE_VENDOR (0x02 << 5)
89#define USB_TYPE_RESERVED (0x03 << 5)
90
91#define USB_RECIP_MASK 0x1f
92#define USB_RECIP_DEVICE 0x00
93#define USB_RECIP_INTERFACE 0x01
94#define USB_RECIP_ENDPOINT 0x02
95#define USB_RECIP_OTHER 0x03
96
97#define DeviceRequest ((USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_DEVICE)<<8)
98#define DeviceOutRequest ((USB_DIR_OUT|USB_TYPE_STANDARD|USB_RECIP_DEVICE)<<8)
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99#define InterfaceRequest \
100 ((USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_INTERFACE)<<8)
101#define InterfaceOutRequest \
102 ((USB_DIR_OUT|USB_TYPE_STANDARD|USB_RECIP_INTERFACE)<<8)
103#define EndpointRequest ((USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_ENDPOINT)<<8)
104#define EndpointOutRequest \
105 ((USB_DIR_OUT|USB_TYPE_STANDARD|USB_RECIP_ENDPOINT)<<8)
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106#define ClassInterfaceRequest \
107 ((USB_DIR_IN|USB_TYPE_CLASS|USB_RECIP_INTERFACE)<<8)
108#define ClassInterfaceOutRequest \
109 ((USB_DIR_OUT|USB_TYPE_CLASS|USB_RECIP_INTERFACE)<<8)
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110
111#define USB_REQ_GET_STATUS 0x00
112#define USB_REQ_CLEAR_FEATURE 0x01
113#define USB_REQ_SET_FEATURE 0x03
114#define USB_REQ_SET_ADDRESS 0x05
115#define USB_REQ_GET_DESCRIPTOR 0x06
116#define USB_REQ_SET_DESCRIPTOR 0x07
117#define USB_REQ_GET_CONFIGURATION 0x08
118#define USB_REQ_SET_CONFIGURATION 0x09
119#define USB_REQ_GET_INTERFACE 0x0A
120#define USB_REQ_SET_INTERFACE 0x0B
121#define USB_REQ_SYNCH_FRAME 0x0C
122
123#define USB_DEVICE_SELF_POWERED 0
124#define USB_DEVICE_REMOTE_WAKEUP 1
125
126#define USB_DT_DEVICE 0x01
127#define USB_DT_CONFIG 0x02
128#define USB_DT_STRING 0x03
129#define USB_DT_INTERFACE 0x04
130#define USB_DT_ENDPOINT 0x05
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131#define USB_DT_DEVICE_QUALIFIER 0x06
132#define USB_DT_OTHER_SPEED_CONFIG 0x07
a7fb71d1 133#define USB_DT_DEBUG 0x0A
c6d3ad0f 134#define USB_DT_INTERFACE_ASSOC 0x0B
bb36d470 135
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136#define USB_ENDPOINT_XFER_CONTROL 0
137#define USB_ENDPOINT_XFER_ISOC 1
138#define USB_ENDPOINT_XFER_BULK 2
139#define USB_ENDPOINT_XFER_INT 3
140
806b6024 141typedef struct USBBus USBBus;
07771f6f 142typedef struct USBBusOps USBBusOps;
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143typedef struct USBPort USBPort;
144typedef struct USBDevice USBDevice;
806b6024 145typedef struct USBDeviceInfo USBDeviceInfo;
4d611c9a 146typedef struct USBPacket USBPacket;
bb36d470 147
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148typedef struct USBDesc USBDesc;
149typedef struct USBDescID USBDescID;
150typedef struct USBDescDevice USBDescDevice;
151typedef struct USBDescConfig USBDescConfig;
6e625fc7 152typedef struct USBDescIfaceAssoc USBDescIfaceAssoc;
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153typedef struct USBDescIface USBDescIface;
154typedef struct USBDescEndpoint USBDescEndpoint;
155typedef struct USBDescOther USBDescOther;
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156typedef struct USBDescString USBDescString;
157
158struct USBDescString {
159 uint8_t index;
160 char *str;
161 QLIST_ENTRY(USBDescString) next;
162};
37fb59d3 163
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164#define USB_MAX_ENDPOINTS 15
165#define USB_MAX_INTERFACES 16
166
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167/* definition of a USB device */
168struct USBDevice {
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169 DeviceState qdev;
170 USBDeviceInfo *info;
618c169b 171 USBPort *port;
5f69076b 172 char *port_path;
bb36d470 173 void *opaque;
89b9b79f 174
ba3f9bfb 175 /* Actual connected speed */
806b6024 176 int speed;
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177 /* Supported speeds, not in info because it may be variable (hostdevs) */
178 int speedmask;
806b6024 179 uint8_t addr;
0fe6d12e 180 char product_desc[32];
61e094c0 181 int auto_attach;
a5d2f727 182 int attached;
806b6024 183
c1ecb40a 184 int32_t state;
806b6024 185 uint8_t setup_buf[8];
19f33223 186 uint8_t data_buf[4096];
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187 int32_t remote_wakeup;
188 int32_t setup_state;
189 int32_t setup_len;
190 int32_t setup_index;
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191
192 QLIST_HEAD(, USBDescString) strings;
a980a065 193 const USBDescDevice *device;
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194
195 int configuration;
196 int ninterfaces;
1de14d43 197 int altsetting[USB_MAX_INTERFACES];
a980a065 198 const USBDescConfig *config;
1de14d43 199 const USBDescIface *ifaces[USB_MAX_INTERFACES];
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200};
201
202struct USBDeviceInfo {
203 DeviceInfo qdev;
204 int (*init)(USBDevice *dev);
205
206 /*
207 * Process USB packet.
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208 * Called by the HC (Host Controller).
209 *
806b6024 210 * Returns length of the transaction
89b9b79f 211 * or one of the USB_RET_XXX codes.
806b6024 212 */
4d611c9a 213 int (*handle_packet)(USBDevice *dev, USBPacket *p);
89b9b79f 214
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215 /*
216 * Called when a packet is canceled.
217 */
218 void (*cancel_packet)(USBDevice *dev, USBPacket *p);
219
806b6024 220 /*
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221 * Called when device is destroyed.
222 */
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223 void (*handle_destroy)(USBDevice *dev);
224
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225 /*
226 * Attach the device
227 */
228 void (*handle_attach)(USBDevice *dev);
229
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230 /*
231 * Reset the device
806b6024 232 */
059809e4 233 void (*handle_reset)(USBDevice *dev);
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234
235 /*
236 * Process control request.
237 * Called from handle_packet().
238 *
239 * Returns length or one of the USB_RET_ codes.
240 */
007fd62f 241 int (*handle_control)(USBDevice *dev, USBPacket *p, int request, int value,
bb36d470 242 int index, int length, uint8_t *data);
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243
244 /*
245 * Process data transfers (both BULK and ISOC).
246 * Called from handle_packet().
247 *
248 * Returns length or one of the USB_RET_ codes.
249 */
4d611c9a 250 int (*handle_data)(USBDevice *dev, USBPacket *p);
0958b4cc 251
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252 void (*set_interface)(USBDevice *dev, int interface,
253 int alt_old, int alt_new);
254
06384698 255 const char *product_desc;
37fb59d3 256 const USBDesc *usb_desc;
06384698 257
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258 /* handle legacy -usbdevice command line options */
259 const char *usbdevice_name;
260 USBDevice *(*usbdevice_init)(const char *params);
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261};
262
0d86d2be 263typedef struct USBPortOps {
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264 void (*attach)(USBPort *port);
265 void (*detach)(USBPort *port);
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266 /*
267 * This gets called when a device downstream from the device attached to
268 * the port (iow attached through a hub) gets detached.
269 */
270 void (*child_detach)(USBPort *port, USBDevice *child);
d47e59b8
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271 void (*wakeup)(USBPort *port);
272 /*
273 * Note that port->dev will be different then the device from which
274 * the packet originated when a hub is involved, if you want the orginating
275 * device use p->owner
276 */
277 void (*complete)(USBPort *port, USBPacket *p);
0d86d2be 278} USBPortOps;
0d92ed30 279
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280/* USB port on which a device can be connected */
281struct USBPort {
a594cfbf 282 USBDevice *dev;
843d4e0c 283 int speedmask;
c7a2196a 284 char path[16];
0d86d2be 285 USBPortOps *ops;
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286 void *opaque;
287 int index; /* internal port index, may be used with the opaque */
72cf2d4f 288 QTAILQ_ENTRY(USBPort) next;
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289};
290
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291typedef void USBCallback(USBPacket * packet, void *opaque);
292
293/* Structure used to hold information about an active USB packet. */
294struct USBPacket {
295 /* Data fields for use by the driver. */
296 int pid;
297 uint8_t devaddr;
298 uint8_t devep;
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299 QEMUIOVector iov;
300 int result; /* transfer length or USB_RET_* status code */
4d611c9a 301 /* Internal use by the USB layer. */
4ff658fb 302 USBDevice *owner;
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303};
304
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305void usb_packet_init(USBPacket *p);
306void usb_packet_setup(USBPacket *p, int pid, uint8_t addr, uint8_t ep);
307void usb_packet_addbuf(USBPacket *p, void *ptr, size_t len);
308int usb_packet_map(USBPacket *p, QEMUSGList *sgl);
309void usb_packet_unmap(USBPacket *p);
310void usb_packet_copy(USBPacket *p, void *ptr, size_t bytes);
311void usb_packet_skip(USBPacket *p, size_t bytes);
312void usb_packet_cleanup(USBPacket *p);
313
53aa8c0e 314int usb_handle_packet(USBDevice *dev, USBPacket *p);
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315void usb_packet_complete(USBDevice *dev, USBPacket *p);
316void usb_cancel_packet(USBPacket * p);
53aa8c0e 317
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318void usb_attach(USBPort *port);
319void usb_detach(USBPort *port);
e0b8e72d 320void usb_reset(USBPort *port);
01eacab6 321void usb_wakeup(USBDevice *dev);
4d611c9a 322int usb_generic_handle_packet(USBDevice *s, USBPacket *p);
50b7963e 323void usb_generic_async_ctrl_complete(USBDevice *s, USBPacket *p);
bb36d470 324int set_usb_string(uint8_t *buf, const char *str);
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325void usb_send_msg(USBDevice *dev, int msg);
326
bb36d470 327/* usb-linux.c */
a594cfbf 328USBDevice *usb_host_device_open(const char *devname);
5d0c5750 329int usb_host_device_close(const char *devname);
376253ec 330void usb_host_info(Monitor *mon);
59ae540c 331
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332/* usb-bt.c */
333USBDevice *usb_bt_init(HCIInfo *hci);
334
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335/* usb ports of the VM */
336
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337#define VM_USB_HUB_SIZE 8
338
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339/* usb-musb.c */
340enum musb_irq_source_e {
341 musb_irq_suspend = 0,
342 musb_irq_resume,
343 musb_irq_rst_babble,
344 musb_irq_sof,
345 musb_irq_connect,
346 musb_irq_disconnect,
347 musb_irq_vbus_request,
348 musb_irq_vbus_error,
349 musb_irq_rx,
350 musb_irq_tx,
351 musb_set_vbus,
352 musb_set_session,
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353 /* Add new interrupts here */
354 musb_irq_max, /* total number of interrupts defined */
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355};
356
bc24a225 357typedef struct MUSBState MUSBState;
406c2075 358MUSBState *musb_init(DeviceState *parent_device, int gpio_base);
5b1cdb4e 359void musb_reset(MUSBState *s);
bc24a225
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360uint32_t musb_core_intr_get(MUSBState *s);
361void musb_core_intr_clear(MUSBState *s, uint32_t mask);
362void musb_set_size(MUSBState *s, int epnum, int size, int is_tx);
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363
364/* usb-bus.c */
365
366struct USBBus {
367 BusState qbus;
07771f6f 368 USBBusOps *ops;
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369 int busnr;
370 int nfree;
371 int nused;
72cf2d4f
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372 QTAILQ_HEAD(, USBPort) free;
373 QTAILQ_HEAD(, USBPort) used;
374 QTAILQ_ENTRY(USBBus) next;
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375};
376
07771f6f 377struct USBBusOps {
ae60fea9
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378 int (*register_companion)(USBBus *bus, USBPort *ports[],
379 uint32_t portcount, uint32_t firstport);
07771f6f
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380};
381
382void usb_bus_new(USBBus *bus, USBBusOps *ops, DeviceState *host);
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383USBBus *usb_bus_find(int busnr);
384void usb_qdev_register(USBDeviceInfo *info);
385void usb_qdev_register_many(USBDeviceInfo *info);
a5d2f727 386USBDevice *usb_create(USBBus *bus, const char *name);
806b6024 387USBDevice *usb_create_simple(USBBus *bus, const char *name);
0958b4cc 388USBDevice *usbdevice_create(const char *cmdline);
a5d2f727 389void usb_register_port(USBBus *bus, USBPort *port, void *opaque, int index,
ace1318b 390 USBPortOps *ops, int speedmask);
ae60fea9
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391int usb_register_companion(const char *masterbus, USBPort *ports[],
392 uint32_t portcount, uint32_t firstport,
393 void *opaque, USBPortOps *ops, int speedmask);
c7a2196a 394void usb_port_location(USBPort *downstream, USBPort *upstream, int portnr);
a8e662b5 395void usb_unregister_port(USBBus *bus, USBPort *port);
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396int usb_claim_port(USBDevice *dev);
397void usb_release_port(USBDevice *dev);
a5d2f727 398int usb_device_attach(USBDevice *dev);
a8e662b5 399int usb_device_detach(USBDevice *dev);
a5d2f727
GH
400int usb_device_delete_addr(int busnr, int addr);
401
402static inline USBBus *usb_bus_from_device(USBDevice *d)
403{
404 return DO_UPCAST(USBBus, qbus, d->qdev.parent_bus);
405}