hw/usb/dev-storage: Remove unused "ui/console.h" header
[qemu.git] / hw / usb / dev-storage.c
1 /*
2 * USB Mass Storage Device emulation
3 *
4 * Copyright (c) 2006 CodeSourcery.
5 * Written by Paul Brook
6 *
7 * This code is licensed under the LGPL.
8 */
9
10 #include "qemu/osdep.h"
11 #include "qapi/error.h"
12 #include "qemu/error-report.h"
13 #include "qemu/module.h"
14 #include "qemu/option.h"
15 #include "qemu/config-file.h"
16 #include "hw/usb.h"
17 #include "desc.h"
18 #include "hw/qdev-properties.h"
19 #include "hw/scsi/scsi.h"
20 #include "migration/vmstate.h"
21 #include "monitor/monitor.h"
22 #include "sysemu/sysemu.h"
23 #include "sysemu/block-backend.h"
24 #include "qapi/visitor.h"
25 #include "qemu/cutils.h"
26
27 //#define DEBUG_MSD
28
29 #ifdef DEBUG_MSD
30 #define DPRINTF(fmt, ...) \
31 do { printf("usb-msd: " fmt , ## __VA_ARGS__); } while (0)
32 #else
33 #define DPRINTF(fmt, ...) do {} while(0)
34 #endif
35
36 /* USB requests. */
37 #define MassStorageReset 0xff
38 #define GetMaxLun 0xfe
39
40 enum USBMSDMode {
41 USB_MSDM_CBW, /* Command Block. */
42 USB_MSDM_DATAOUT, /* Transfer data to device. */
43 USB_MSDM_DATAIN, /* Transfer data from device. */
44 USB_MSDM_CSW /* Command Status. */
45 };
46
47 struct usb_msd_csw {
48 uint32_t sig;
49 uint32_t tag;
50 uint32_t residue;
51 uint8_t status;
52 };
53
54 typedef struct {
55 USBDevice dev;
56 enum USBMSDMode mode;
57 uint32_t scsi_off;
58 uint32_t scsi_len;
59 uint32_t data_len;
60 struct usb_msd_csw csw;
61 SCSIRequest *req;
62 SCSIBus bus;
63 /* For async completion. */
64 USBPacket *packet;
65 /* usb-storage only */
66 BlockConf conf;
67 uint32_t removable;
68 SCSIDevice *scsi_dev;
69 } MSDState;
70
71 #define TYPE_USB_STORAGE "usb-storage-dev"
72 #define USB_STORAGE_DEV(obj) OBJECT_CHECK(MSDState, (obj), TYPE_USB_STORAGE)
73
74 struct usb_msd_cbw {
75 uint32_t sig;
76 uint32_t tag;
77 uint32_t data_len;
78 uint8_t flags;
79 uint8_t lun;
80 uint8_t cmd_len;
81 uint8_t cmd[16];
82 };
83
84 enum {
85 STR_MANUFACTURER = 1,
86 STR_PRODUCT,
87 STR_SERIALNUMBER,
88 STR_CONFIG_FULL,
89 STR_CONFIG_HIGH,
90 STR_CONFIG_SUPER,
91 };
92
93 static const USBDescStrings desc_strings = {
94 [STR_MANUFACTURER] = "QEMU",
95 [STR_PRODUCT] = "QEMU USB HARDDRIVE",
96 [STR_SERIALNUMBER] = "1",
97 [STR_CONFIG_FULL] = "Full speed config (usb 1.1)",
98 [STR_CONFIG_HIGH] = "High speed config (usb 2.0)",
99 [STR_CONFIG_SUPER] = "Super speed config (usb 3.0)",
100 };
101
102 static const USBDescIface desc_iface_full = {
103 .bInterfaceNumber = 0,
104 .bNumEndpoints = 2,
105 .bInterfaceClass = USB_CLASS_MASS_STORAGE,
106 .bInterfaceSubClass = 0x06, /* SCSI */
107 .bInterfaceProtocol = 0x50, /* Bulk */
108 .eps = (USBDescEndpoint[]) {
109 {
110 .bEndpointAddress = USB_DIR_IN | 0x01,
111 .bmAttributes = USB_ENDPOINT_XFER_BULK,
112 .wMaxPacketSize = 64,
113 },{
114 .bEndpointAddress = USB_DIR_OUT | 0x02,
115 .bmAttributes = USB_ENDPOINT_XFER_BULK,
116 .wMaxPacketSize = 64,
117 },
118 }
119 };
120
121 static const USBDescDevice desc_device_full = {
122 .bcdUSB = 0x0200,
123 .bMaxPacketSize0 = 8,
124 .bNumConfigurations = 1,
125 .confs = (USBDescConfig[]) {
126 {
127 .bNumInterfaces = 1,
128 .bConfigurationValue = 1,
129 .iConfiguration = STR_CONFIG_FULL,
130 .bmAttributes = USB_CFG_ATT_ONE | USB_CFG_ATT_SELFPOWER,
131 .nif = 1,
132 .ifs = &desc_iface_full,
133 },
134 },
135 };
136
137 static const USBDescIface desc_iface_high = {
138 .bInterfaceNumber = 0,
139 .bNumEndpoints = 2,
140 .bInterfaceClass = USB_CLASS_MASS_STORAGE,
141 .bInterfaceSubClass = 0x06, /* SCSI */
142 .bInterfaceProtocol = 0x50, /* Bulk */
143 .eps = (USBDescEndpoint[]) {
144 {
145 .bEndpointAddress = USB_DIR_IN | 0x01,
146 .bmAttributes = USB_ENDPOINT_XFER_BULK,
147 .wMaxPacketSize = 512,
148 },{
149 .bEndpointAddress = USB_DIR_OUT | 0x02,
150 .bmAttributes = USB_ENDPOINT_XFER_BULK,
151 .wMaxPacketSize = 512,
152 },
153 }
154 };
155
156 static const USBDescDevice desc_device_high = {
157 .bcdUSB = 0x0200,
158 .bMaxPacketSize0 = 64,
159 .bNumConfigurations = 1,
160 .confs = (USBDescConfig[]) {
161 {
162 .bNumInterfaces = 1,
163 .bConfigurationValue = 1,
164 .iConfiguration = STR_CONFIG_HIGH,
165 .bmAttributes = USB_CFG_ATT_ONE | USB_CFG_ATT_SELFPOWER,
166 .nif = 1,
167 .ifs = &desc_iface_high,
168 },
169 },
170 };
171
172 static const USBDescIface desc_iface_super = {
173 .bInterfaceNumber = 0,
174 .bNumEndpoints = 2,
175 .bInterfaceClass = USB_CLASS_MASS_STORAGE,
176 .bInterfaceSubClass = 0x06, /* SCSI */
177 .bInterfaceProtocol = 0x50, /* Bulk */
178 .eps = (USBDescEndpoint[]) {
179 {
180 .bEndpointAddress = USB_DIR_IN | 0x01,
181 .bmAttributes = USB_ENDPOINT_XFER_BULK,
182 .wMaxPacketSize = 1024,
183 .bMaxBurst = 15,
184 },{
185 .bEndpointAddress = USB_DIR_OUT | 0x02,
186 .bmAttributes = USB_ENDPOINT_XFER_BULK,
187 .wMaxPacketSize = 1024,
188 .bMaxBurst = 15,
189 },
190 }
191 };
192
193 static const USBDescDevice desc_device_super = {
194 .bcdUSB = 0x0300,
195 .bMaxPacketSize0 = 9,
196 .bNumConfigurations = 1,
197 .confs = (USBDescConfig[]) {
198 {
199 .bNumInterfaces = 1,
200 .bConfigurationValue = 1,
201 .iConfiguration = STR_CONFIG_SUPER,
202 .bmAttributes = USB_CFG_ATT_ONE | USB_CFG_ATT_SELFPOWER,
203 .nif = 1,
204 .ifs = &desc_iface_super,
205 },
206 },
207 };
208
209 static const USBDesc desc = {
210 .id = {
211 .idVendor = 0x46f4, /* CRC16() of "QEMU" */
212 .idProduct = 0x0001,
213 .bcdDevice = 0,
214 .iManufacturer = STR_MANUFACTURER,
215 .iProduct = STR_PRODUCT,
216 .iSerialNumber = STR_SERIALNUMBER,
217 },
218 .full = &desc_device_full,
219 .high = &desc_device_high,
220 .super = &desc_device_super,
221 .str = desc_strings,
222 };
223
224 static void usb_msd_copy_data(MSDState *s, USBPacket *p)
225 {
226 uint32_t len;
227 len = p->iov.size - p->actual_length;
228 if (len > s->scsi_len)
229 len = s->scsi_len;
230 usb_packet_copy(p, scsi_req_get_buf(s->req) + s->scsi_off, len);
231 s->scsi_len -= len;
232 s->scsi_off += len;
233 s->data_len -= len;
234 if (s->scsi_len == 0 || s->data_len == 0) {
235 scsi_req_continue(s->req);
236 }
237 }
238
239 static void usb_msd_send_status(MSDState *s, USBPacket *p)
240 {
241 int len;
242
243 DPRINTF("Command status %d tag 0x%x, len %zd\n",
244 s->csw.status, le32_to_cpu(s->csw.tag), p->iov.size);
245
246 assert(s->csw.sig == cpu_to_le32(0x53425355));
247 len = MIN(sizeof(s->csw), p->iov.size);
248 usb_packet_copy(p, &s->csw, len);
249 memset(&s->csw, 0, sizeof(s->csw));
250 }
251
252 static void usb_msd_packet_complete(MSDState *s)
253 {
254 USBPacket *p = s->packet;
255
256 /* Set s->packet to NULL before calling usb_packet_complete
257 because another request may be issued before
258 usb_packet_complete returns. */
259 DPRINTF("Packet complete %p\n", p);
260 s->packet = NULL;
261 usb_packet_complete(&s->dev, p);
262 }
263
264 static void usb_msd_transfer_data(SCSIRequest *req, uint32_t len)
265 {
266 MSDState *s = DO_UPCAST(MSDState, dev.qdev, req->bus->qbus.parent);
267 USBPacket *p = s->packet;
268
269 assert((s->mode == USB_MSDM_DATAOUT) == (req->cmd.mode == SCSI_XFER_TO_DEV));
270 s->scsi_len = len;
271 s->scsi_off = 0;
272 if (p) {
273 usb_msd_copy_data(s, p);
274 p = s->packet;
275 if (p && p->actual_length == p->iov.size) {
276 p->status = USB_RET_SUCCESS; /* Clear previous ASYNC status */
277 usb_msd_packet_complete(s);
278 }
279 }
280 }
281
282 static void usb_msd_command_complete(SCSIRequest *req, uint32_t status, size_t resid)
283 {
284 MSDState *s = DO_UPCAST(MSDState, dev.qdev, req->bus->qbus.parent);
285 USBPacket *p = s->packet;
286
287 DPRINTF("Command complete %d tag 0x%x\n", status, req->tag);
288
289 s->csw.sig = cpu_to_le32(0x53425355);
290 s->csw.tag = cpu_to_le32(req->tag);
291 s->csw.residue = cpu_to_le32(s->data_len);
292 s->csw.status = status != 0;
293
294 if (s->packet) {
295 if (s->data_len == 0 && s->mode == USB_MSDM_DATAOUT) {
296 /* A deferred packet with no write data remaining must be
297 the status read packet. */
298 usb_msd_send_status(s, p);
299 s->mode = USB_MSDM_CBW;
300 } else if (s->mode == USB_MSDM_CSW) {
301 usb_msd_send_status(s, p);
302 s->mode = USB_MSDM_CBW;
303 } else {
304 if (s->data_len) {
305 int len = (p->iov.size - p->actual_length);
306 usb_packet_skip(p, len);
307 s->data_len -= len;
308 }
309 if (s->data_len == 0) {
310 s->mode = USB_MSDM_CSW;
311 }
312 }
313 p->status = USB_RET_SUCCESS; /* Clear previous ASYNC status */
314 usb_msd_packet_complete(s);
315 } else if (s->data_len == 0) {
316 s->mode = USB_MSDM_CSW;
317 }
318 scsi_req_unref(req);
319 s->req = NULL;
320 }
321
322 static void usb_msd_request_cancelled(SCSIRequest *req)
323 {
324 MSDState *s = DO_UPCAST(MSDState, dev.qdev, req->bus->qbus.parent);
325
326 if (req == s->req) {
327 scsi_req_unref(s->req);
328 s->req = NULL;
329 s->scsi_len = 0;
330 }
331 }
332
333 static void usb_msd_handle_reset(USBDevice *dev)
334 {
335 MSDState *s = (MSDState *)dev;
336
337 DPRINTF("Reset\n");
338 if (s->req) {
339 scsi_req_cancel(s->req);
340 }
341 assert(s->req == NULL);
342
343 if (s->packet) {
344 s->packet->status = USB_RET_STALL;
345 usb_msd_packet_complete(s);
346 }
347
348 s->mode = USB_MSDM_CBW;
349 }
350
351 static void usb_msd_handle_control(USBDevice *dev, USBPacket *p,
352 int request, int value, int index, int length, uint8_t *data)
353 {
354 MSDState *s = (MSDState *)dev;
355 SCSIDevice *scsi_dev;
356 int ret, maxlun;
357
358 ret = usb_desc_handle_control(dev, p, request, value, index, length, data);
359 if (ret >= 0) {
360 return;
361 }
362
363 switch (request) {
364 case EndpointOutRequest | USB_REQ_CLEAR_FEATURE:
365 break;
366 /* Class specific requests. */
367 case ClassInterfaceOutRequest | MassStorageReset:
368 /* Reset state ready for the next CBW. */
369 s->mode = USB_MSDM_CBW;
370 break;
371 case ClassInterfaceRequest | GetMaxLun:
372 maxlun = 0;
373 for (;;) {
374 scsi_dev = scsi_device_find(&s->bus, 0, 0, maxlun+1);
375 if (scsi_dev == NULL) {
376 break;
377 }
378 if (scsi_dev->lun != maxlun+1) {
379 break;
380 }
381 maxlun++;
382 }
383 DPRINTF("MaxLun %d\n", maxlun);
384 data[0] = maxlun;
385 p->actual_length = 1;
386 break;
387 default:
388 p->status = USB_RET_STALL;
389 break;
390 }
391 }
392
393 static void usb_msd_cancel_io(USBDevice *dev, USBPacket *p)
394 {
395 MSDState *s = USB_STORAGE_DEV(dev);
396
397 assert(s->packet == p);
398 s->packet = NULL;
399
400 if (s->req) {
401 scsi_req_cancel(s->req);
402 }
403 }
404
405 static void usb_msd_handle_data(USBDevice *dev, USBPacket *p)
406 {
407 MSDState *s = (MSDState *)dev;
408 uint32_t tag;
409 struct usb_msd_cbw cbw;
410 uint8_t devep = p->ep->nr;
411 SCSIDevice *scsi_dev;
412 uint32_t len;
413
414 switch (p->pid) {
415 case USB_TOKEN_OUT:
416 if (devep != 2)
417 goto fail;
418
419 switch (s->mode) {
420 case USB_MSDM_CBW:
421 if (p->iov.size != 31) {
422 error_report("usb-msd: Bad CBW size");
423 goto fail;
424 }
425 usb_packet_copy(p, &cbw, 31);
426 if (le32_to_cpu(cbw.sig) != 0x43425355) {
427 error_report("usb-msd: Bad signature %08x",
428 le32_to_cpu(cbw.sig));
429 goto fail;
430 }
431 DPRINTF("Command on LUN %d\n", cbw.lun);
432 scsi_dev = scsi_device_find(&s->bus, 0, 0, cbw.lun);
433 if (scsi_dev == NULL) {
434 error_report("usb-msd: Bad LUN %d", cbw.lun);
435 goto fail;
436 }
437 tag = le32_to_cpu(cbw.tag);
438 s->data_len = le32_to_cpu(cbw.data_len);
439 if (s->data_len == 0) {
440 s->mode = USB_MSDM_CSW;
441 } else if (cbw.flags & 0x80) {
442 s->mode = USB_MSDM_DATAIN;
443 } else {
444 s->mode = USB_MSDM_DATAOUT;
445 }
446 DPRINTF("Command tag 0x%x flags %08x len %d data %d\n",
447 tag, cbw.flags, cbw.cmd_len, s->data_len);
448 assert(le32_to_cpu(s->csw.residue) == 0);
449 s->scsi_len = 0;
450 s->req = scsi_req_new(scsi_dev, tag, cbw.lun, cbw.cmd, NULL);
451 #ifdef DEBUG_MSD
452 scsi_req_print(s->req);
453 #endif
454 len = scsi_req_enqueue(s->req);
455 if (len) {
456 scsi_req_continue(s->req);
457 }
458 break;
459
460 case USB_MSDM_DATAOUT:
461 DPRINTF("Data out %zd/%d\n", p->iov.size, s->data_len);
462 if (p->iov.size > s->data_len) {
463 goto fail;
464 }
465
466 if (s->scsi_len) {
467 usb_msd_copy_data(s, p);
468 }
469 if (le32_to_cpu(s->csw.residue)) {
470 int len = p->iov.size - p->actual_length;
471 if (len) {
472 usb_packet_skip(p, len);
473 s->data_len -= len;
474 if (s->data_len == 0) {
475 s->mode = USB_MSDM_CSW;
476 }
477 }
478 }
479 if (p->actual_length < p->iov.size) {
480 DPRINTF("Deferring packet %p [wait data-out]\n", p);
481 s->packet = p;
482 p->status = USB_RET_ASYNC;
483 }
484 break;
485
486 default:
487 DPRINTF("Unexpected write (len %zd)\n", p->iov.size);
488 goto fail;
489 }
490 break;
491
492 case USB_TOKEN_IN:
493 if (devep != 1)
494 goto fail;
495
496 switch (s->mode) {
497 case USB_MSDM_DATAOUT:
498 if (s->data_len != 0 || p->iov.size < 13) {
499 goto fail;
500 }
501 /* Waiting for SCSI write to complete. */
502 s->packet = p;
503 p->status = USB_RET_ASYNC;
504 break;
505
506 case USB_MSDM_CSW:
507 if (p->iov.size < 13) {
508 goto fail;
509 }
510
511 if (s->req) {
512 /* still in flight */
513 DPRINTF("Deferring packet %p [wait status]\n", p);
514 s->packet = p;
515 p->status = USB_RET_ASYNC;
516 } else {
517 usb_msd_send_status(s, p);
518 s->mode = USB_MSDM_CBW;
519 }
520 break;
521
522 case USB_MSDM_DATAIN:
523 DPRINTF("Data in %zd/%d, scsi_len %d\n",
524 p->iov.size, s->data_len, s->scsi_len);
525 if (s->scsi_len) {
526 usb_msd_copy_data(s, p);
527 }
528 if (le32_to_cpu(s->csw.residue)) {
529 int len = p->iov.size - p->actual_length;
530 if (len) {
531 usb_packet_skip(p, len);
532 s->data_len -= len;
533 if (s->data_len == 0) {
534 s->mode = USB_MSDM_CSW;
535 }
536 }
537 }
538 if (p->actual_length < p->iov.size) {
539 DPRINTF("Deferring packet %p [wait data-in]\n", p);
540 s->packet = p;
541 p->status = USB_RET_ASYNC;
542 }
543 break;
544
545 default:
546 DPRINTF("Unexpected read (len %zd)\n", p->iov.size);
547 goto fail;
548 }
549 break;
550
551 default:
552 DPRINTF("Bad token\n");
553 fail:
554 p->status = USB_RET_STALL;
555 break;
556 }
557 }
558
559 static void *usb_msd_load_request(QEMUFile *f, SCSIRequest *req)
560 {
561 MSDState *s = DO_UPCAST(MSDState, dev.qdev, req->bus->qbus.parent);
562
563 /* nothing to load, just store req in our state struct */
564 assert(s->req == NULL);
565 scsi_req_ref(req);
566 s->req = req;
567 return NULL;
568 }
569
570 static const struct SCSIBusInfo usb_msd_scsi_info_storage = {
571 .tcq = false,
572 .max_target = 0,
573 .max_lun = 0,
574
575 .transfer_data = usb_msd_transfer_data,
576 .complete = usb_msd_command_complete,
577 .cancel = usb_msd_request_cancelled,
578 .load_request = usb_msd_load_request,
579 };
580
581 static const struct SCSIBusInfo usb_msd_scsi_info_bot = {
582 .tcq = false,
583 .max_target = 0,
584 .max_lun = 15,
585
586 .transfer_data = usb_msd_transfer_data,
587 .complete = usb_msd_command_complete,
588 .cancel = usb_msd_request_cancelled,
589 .load_request = usb_msd_load_request,
590 };
591
592 static void usb_msd_storage_realize(USBDevice *dev, Error **errp)
593 {
594 MSDState *s = USB_STORAGE_DEV(dev);
595 BlockBackend *blk = s->conf.blk;
596 SCSIDevice *scsi_dev;
597
598 if (!blk) {
599 error_setg(errp, "drive property not set");
600 return;
601 }
602
603 blkconf_blocksizes(&s->conf);
604 if (!blkconf_apply_backend_options(&s->conf, blk_is_read_only(blk), true,
605 errp)) {
606 return;
607 }
608
609 /*
610 * Hack alert: this pretends to be a block device, but it's really
611 * a SCSI bus that can serve only a single device, which it
612 * creates automatically. But first it needs to detach from its
613 * blockdev, or else scsi_bus_legacy_add_drive() dies when it
614 * attaches again. We also need to take another reference so that
615 * blk_detach_dev() doesn't free blk while we still need it.
616 *
617 * The hack is probably a bad idea.
618 */
619 blk_ref(blk);
620 blk_detach_dev(blk, DEVICE(s));
621 s->conf.blk = NULL;
622
623 usb_desc_create_serial(dev);
624 usb_desc_init(dev);
625 scsi_bus_new(&s->bus, sizeof(s->bus), DEVICE(dev),
626 &usb_msd_scsi_info_storage, NULL);
627 scsi_dev = scsi_bus_legacy_add_drive(&s->bus, blk, 0, !!s->removable,
628 s->conf.bootindex, s->conf.share_rw,
629 s->conf.rerror, s->conf.werror,
630 dev->serial,
631 errp);
632 blk_unref(blk);
633 if (!scsi_dev) {
634 return;
635 }
636 usb_msd_handle_reset(dev);
637 s->scsi_dev = scsi_dev;
638 }
639
640 static void usb_msd_bot_realize(USBDevice *dev, Error **errp)
641 {
642 MSDState *s = USB_STORAGE_DEV(dev);
643 DeviceState *d = DEVICE(dev);
644
645 usb_desc_create_serial(dev);
646 usb_desc_init(dev);
647 if (d->hotplugged) {
648 s->dev.auto_attach = 0;
649 }
650
651 scsi_bus_new(&s->bus, sizeof(s->bus), DEVICE(dev),
652 &usb_msd_scsi_info_bot, NULL);
653 usb_msd_handle_reset(dev);
654 }
655
656 static const VMStateDescription vmstate_usb_msd = {
657 .name = "usb-storage",
658 .version_id = 1,
659 .minimum_version_id = 1,
660 .fields = (VMStateField[]) {
661 VMSTATE_USB_DEVICE(dev, MSDState),
662 VMSTATE_UINT32(mode, MSDState),
663 VMSTATE_UINT32(scsi_len, MSDState),
664 VMSTATE_UINT32(scsi_off, MSDState),
665 VMSTATE_UINT32(data_len, MSDState),
666 VMSTATE_UINT32(csw.sig, MSDState),
667 VMSTATE_UINT32(csw.tag, MSDState),
668 VMSTATE_UINT32(csw.residue, MSDState),
669 VMSTATE_UINT8(csw.status, MSDState),
670 VMSTATE_END_OF_LIST()
671 }
672 };
673
674 static Property msd_properties[] = {
675 DEFINE_BLOCK_PROPERTIES(MSDState, conf),
676 DEFINE_BLOCK_ERROR_PROPERTIES(MSDState, conf),
677 DEFINE_PROP_BIT("removable", MSDState, removable, 0, false),
678 DEFINE_PROP_END_OF_LIST(),
679 };
680
681 static void usb_msd_class_initfn_common(ObjectClass *klass, void *data)
682 {
683 DeviceClass *dc = DEVICE_CLASS(klass);
684 USBDeviceClass *uc = USB_DEVICE_CLASS(klass);
685
686 uc->product_desc = "QEMU USB MSD";
687 uc->usb_desc = &desc;
688 uc->cancel_packet = usb_msd_cancel_io;
689 uc->handle_attach = usb_desc_attach;
690 uc->handle_reset = usb_msd_handle_reset;
691 uc->handle_control = usb_msd_handle_control;
692 uc->handle_data = usb_msd_handle_data;
693 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
694 dc->fw_name = "storage";
695 dc->vmsd = &vmstate_usb_msd;
696 }
697
698 static void usb_msd_class_storage_initfn(ObjectClass *klass, void *data)
699 {
700 DeviceClass *dc = DEVICE_CLASS(klass);
701 USBDeviceClass *uc = USB_DEVICE_CLASS(klass);
702
703 uc->realize = usb_msd_storage_realize;
704 device_class_set_props(dc, msd_properties);
705 }
706
707 static void usb_msd_get_bootindex(Object *obj, Visitor *v, const char *name,
708 void *opaque, Error **errp)
709 {
710 USBDevice *dev = USB_DEVICE(obj);
711 MSDState *s = USB_STORAGE_DEV(dev);
712
713 visit_type_int32(v, name, &s->conf.bootindex, errp);
714 }
715
716 static void usb_msd_set_bootindex(Object *obj, Visitor *v, const char *name,
717 void *opaque, Error **errp)
718 {
719 USBDevice *dev = USB_DEVICE(obj);
720 MSDState *s = USB_STORAGE_DEV(dev);
721 int32_t boot_index;
722 Error *local_err = NULL;
723
724 visit_type_int32(v, name, &boot_index, &local_err);
725 if (local_err) {
726 goto out;
727 }
728 /* check whether bootindex is present in fw_boot_order list */
729 check_boot_index(boot_index, &local_err);
730 if (local_err) {
731 goto out;
732 }
733 /* change bootindex to a new one */
734 s->conf.bootindex = boot_index;
735
736 if (s->scsi_dev) {
737 object_property_set_int(OBJECT(s->scsi_dev), boot_index, "bootindex",
738 &error_abort);
739 }
740
741 out:
742 error_propagate(errp, local_err);
743 }
744
745 static const TypeInfo usb_storage_dev_type_info = {
746 .name = TYPE_USB_STORAGE,
747 .parent = TYPE_USB_DEVICE,
748 .instance_size = sizeof(MSDState),
749 .abstract = true,
750 .class_init = usb_msd_class_initfn_common,
751 };
752
753 static void usb_msd_instance_init(Object *obj)
754 {
755 object_property_add(obj, "bootindex", "int32",
756 usb_msd_get_bootindex,
757 usb_msd_set_bootindex, NULL, NULL, NULL);
758 object_property_set_int(obj, -1, "bootindex", NULL);
759 }
760
761 static void usb_msd_class_bot_initfn(ObjectClass *klass, void *data)
762 {
763 USBDeviceClass *uc = USB_DEVICE_CLASS(klass);
764
765 uc->realize = usb_msd_bot_realize;
766 uc->attached_settable = true;
767 }
768
769 static const TypeInfo msd_info = {
770 .name = "usb-storage",
771 .parent = TYPE_USB_STORAGE,
772 .class_init = usb_msd_class_storage_initfn,
773 .instance_init = usb_msd_instance_init,
774 };
775
776 static const TypeInfo bot_info = {
777 .name = "usb-bot",
778 .parent = TYPE_USB_STORAGE,
779 .class_init = usb_msd_class_bot_initfn,
780 };
781
782 static void usb_msd_register_types(void)
783 {
784 type_register_static(&usb_storage_dev_type_info);
785 type_register_static(&msd_info);
786 type_register_static(&bot_info);
787 }
788
789 type_init(usb_msd_register_types)