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-common.h" 11 #include "qemu/option.h" 12 #include "qemu/config-file.h" 13 #include "hw/usb.h" 14 #include "hw/usb/desc.h" 15 #include "hw/scsi.h" 16 #include "ui/console.h" 17 #include "monitor/monitor.h" 18 #include "sysemu/sysemu.h" 19 #include "sysemu/blockdev.h" 20 21 //#define DEBUG_MSD 22 23 #ifdef DEBUG_MSD 24 #define DPRINTF(fmt, ...) \ 25 do { printf("usb-msd: " fmt , ## __VA_ARGS__); } while (0) 26 #else 27 #define DPRINTF(fmt, ...) do {} while(0) 28 #endif 29 30 /* USB requests. */ 31 #define MassStorageReset 0xff 32 #define GetMaxLun 0xfe 33 34 enum USBMSDMode { 35 USB_MSDM_CBW, /* Command Block. */ 36 USB_MSDM_DATAOUT, /* Transfer data to device. */ 37 USB_MSDM_DATAIN, /* Transfer data from device. */ 38 USB_MSDM_CSW /* Command Status. */ 39 }; 40 41 struct usb_msd_csw { 42 uint32_t sig; 43 uint32_t tag; 44 uint32_t residue; 45 uint8_t status; 46 }; 47 48 typedef struct { 49 USBDevice dev; 50 enum USBMSDMode mode; 51 uint32_t scsi_off; 52 uint32_t scsi_len; 53 uint32_t data_len; 54 struct usb_msd_csw csw; 55 SCSIRequest *req; 56 SCSIBus bus; 57 /* For async completion. */ 58 USBPacket *packet; 59 /* usb-storage only */ 60 BlockConf conf; 61 char *serial; 62 uint32_t removable; 63 } MSDState; 64 65 struct usb_msd_cbw { 66 uint32_t sig; 67 uint32_t tag; 68 uint32_t data_len; 69 uint8_t flags; 70 uint8_t lun; 71 uint8_t cmd_len; 72 uint8_t cmd[16]; 73 }; 74 75 enum { 76 STR_MANUFACTURER = 1, 77 STR_PRODUCT, 78 STR_SERIALNUMBER, 79 STR_CONFIG_FULL, 80 STR_CONFIG_HIGH, 81 STR_CONFIG_SUPER, 82 }; 83 84 static const USBDescStrings desc_strings = { 85 [STR_MANUFACTURER] = "QEMU", 86 [STR_PRODUCT] = "QEMU USB HARDDRIVE", 87 [STR_SERIALNUMBER] = "1", 88 [STR_CONFIG_FULL] = "Full speed config (usb 1.1)", 89 [STR_CONFIG_HIGH] = "High speed config (usb 2.0)", 90 [STR_CONFIG_SUPER] = "Super speed config (usb 3.0)", 91 }; 92 93 static const USBDescIface desc_iface_full = { 94 .bInterfaceNumber = 0, 95 .bNumEndpoints = 2, 96 .bInterfaceClass = USB_CLASS_MASS_STORAGE, 97 .bInterfaceSubClass = 0x06, /* SCSI */ 98 .bInterfaceProtocol = 0x50, /* Bulk */ 99 .eps = (USBDescEndpoint[]) { 100 { 101 .bEndpointAddress = USB_DIR_IN | 0x01, 102 .bmAttributes = USB_ENDPOINT_XFER_BULK, 103 .wMaxPacketSize = 64, 104 },{ 105 .bEndpointAddress = USB_DIR_OUT | 0x02, 106 .bmAttributes = USB_ENDPOINT_XFER_BULK, 107 .wMaxPacketSize = 64, 108 }, 109 } 110 }; 111 112 static const USBDescDevice desc_device_full = { 113 .bcdUSB = 0x0200, 114 .bMaxPacketSize0 = 8, 115 .bNumConfigurations = 1, 116 .confs = (USBDescConfig[]) { 117 { 118 .bNumInterfaces = 1, 119 .bConfigurationValue = 1, 120 .iConfiguration = STR_CONFIG_FULL, 121 .bmAttributes = 0xc0, 122 .nif = 1, 123 .ifs = &desc_iface_full, 124 }, 125 }, 126 }; 127 128 static const USBDescIface desc_iface_high = { 129 .bInterfaceNumber = 0, 130 .bNumEndpoints = 2, 131 .bInterfaceClass = USB_CLASS_MASS_STORAGE, 132 .bInterfaceSubClass = 0x06, /* SCSI */ 133 .bInterfaceProtocol = 0x50, /* Bulk */ 134 .eps = (USBDescEndpoint[]) { 135 { 136 .bEndpointAddress = USB_DIR_IN | 0x01, 137 .bmAttributes = USB_ENDPOINT_XFER_BULK, 138 .wMaxPacketSize = 512, 139 },{ 140 .bEndpointAddress = USB_DIR_OUT | 0x02, 141 .bmAttributes = USB_ENDPOINT_XFER_BULK, 142 .wMaxPacketSize = 512, 143 }, 144 } 145 }; 146 147 static const USBDescDevice desc_device_high = { 148 .bcdUSB = 0x0200, 149 .bMaxPacketSize0 = 64, 150 .bNumConfigurations = 1, 151 .confs = (USBDescConfig[]) { 152 { 153 .bNumInterfaces = 1, 154 .bConfigurationValue = 1, 155 .iConfiguration = STR_CONFIG_HIGH, 156 .bmAttributes = 0xc0, 157 .nif = 1, 158 .ifs = &desc_iface_high, 159 }, 160 }, 161 }; 162 163 static const USBDescIface desc_iface_super = { 164 .bInterfaceNumber = 0, 165 .bNumEndpoints = 2, 166 .bInterfaceClass = USB_CLASS_MASS_STORAGE, 167 .bInterfaceSubClass = 0x06, /* SCSI */ 168 .bInterfaceProtocol = 0x50, /* Bulk */ 169 .eps = (USBDescEndpoint[]) { 170 { 171 .bEndpointAddress = USB_DIR_IN | 0x01, 172 .bmAttributes = USB_ENDPOINT_XFER_BULK, 173 .wMaxPacketSize = 1024, 174 .bMaxBurst = 15, 175 },{ 176 .bEndpointAddress = USB_DIR_OUT | 0x02, 177 .bmAttributes = USB_ENDPOINT_XFER_BULK, 178 .wMaxPacketSize = 1024, 179 .bMaxBurst = 15, 180 }, 181 } 182 }; 183 184 static const USBDescDevice desc_device_super = { 185 .bcdUSB = 0x0300, 186 .bMaxPacketSize0 = 9, 187 .bNumConfigurations = 1, 188 .confs = (USBDescConfig[]) { 189 { 190 .bNumInterfaces = 1, 191 .bConfigurationValue = 1, 192 .iConfiguration = STR_CONFIG_SUPER, 193 .bmAttributes = 0xc0, 194 .nif = 1, 195 .ifs = &desc_iface_super, 196 }, 197 }, 198 }; 199 200 static const USBDesc desc = { 201 .id = { 202 .idVendor = 0x46f4, /* CRC16() of "QEMU" */ 203 .idProduct = 0x0001, 204 .bcdDevice = 0, 205 .iManufacturer = STR_MANUFACTURER, 206 .iProduct = STR_PRODUCT, 207 .iSerialNumber = STR_SERIALNUMBER, 208 }, 209 .full = &desc_device_full, 210 .high = &desc_device_high, 211 .super = &desc_device_super, 212 .str = desc_strings, 213 }; 214 215 static void usb_msd_copy_data(MSDState *s, USBPacket *p) 216 { 217 uint32_t len; 218 len = p->iov.size - p->actual_length; 219 if (len > s->scsi_len) 220 len = s->scsi_len; 221 usb_packet_copy(p, scsi_req_get_buf(s->req) + s->scsi_off, len); 222 s->scsi_len -= len; 223 s->scsi_off += len; 224 s->data_len -= len; 225 if (s->scsi_len == 0 || s->data_len == 0) { 226 scsi_req_continue(s->req); 227 } 228 } 229 230 static void usb_msd_send_status(MSDState *s, USBPacket *p) 231 { 232 int len; 233 234 DPRINTF("Command status %d tag 0x%x, len %zd\n", 235 s->csw.status, le32_to_cpu(s->csw.tag), p->iov.size); 236 237 assert(s->csw.sig == cpu_to_le32(0x53425355)); 238 len = MIN(sizeof(s->csw), p->iov.size); 239 usb_packet_copy(p, &s->csw, len); 240 memset(&s->csw, 0, sizeof(s->csw)); 241 } 242 243 static void usb_msd_packet_complete(MSDState *s) 244 { 245 USBPacket *p = s->packet; 246 247 /* Set s->packet to NULL before calling usb_packet_complete 248 because another request may be issued before 249 usb_packet_complete returns. */ 250 DPRINTF("Packet complete %p\n", p); 251 s->packet = NULL; 252 usb_packet_complete(&s->dev, p); 253 } 254 255 static void usb_msd_transfer_data(SCSIRequest *req, uint32_t len) 256 { 257 MSDState *s = DO_UPCAST(MSDState, dev.qdev, req->bus->qbus.parent); 258 USBPacket *p = s->packet; 259 260 assert((s->mode == USB_MSDM_DATAOUT) == (req->cmd.mode == SCSI_XFER_TO_DEV)); 261 s->scsi_len = len; 262 s->scsi_off = 0; 263 if (p) { 264 usb_msd_copy_data(s, p); 265 p = s->packet; 266 if (p && p->actual_length == p->iov.size) { 267 p->status = USB_RET_SUCCESS; /* Clear previous ASYNC status */ 268 usb_msd_packet_complete(s); 269 } 270 } 271 } 272 273 static void usb_msd_command_complete(SCSIRequest *req, uint32_t status, size_t resid) 274 { 275 MSDState *s = DO_UPCAST(MSDState, dev.qdev, req->bus->qbus.parent); 276 USBPacket *p = s->packet; 277 278 DPRINTF("Command complete %d tag 0x%x\n", status, req->tag); 279 280 s->csw.sig = cpu_to_le32(0x53425355); 281 s->csw.tag = cpu_to_le32(req->tag); 282 s->csw.residue = cpu_to_le32(s->data_len); 283 s->csw.status = status != 0; 284 285 if (s->packet) { 286 if (s->data_len == 0 && s->mode == USB_MSDM_DATAOUT) { 287 /* A deferred packet with no write data remaining must be 288 the status read packet. */ 289 usb_msd_send_status(s, p); 290 s->mode = USB_MSDM_CBW; 291 } else if (s->mode == USB_MSDM_CSW) { 292 usb_msd_send_status(s, p); 293 s->mode = USB_MSDM_CBW; 294 } else { 295 if (s->data_len) { 296 int len = (p->iov.size - p->actual_length); 297 usb_packet_skip(p, len); 298 s->data_len -= len; 299 } 300 if (s->data_len == 0) { 301 s->mode = USB_MSDM_CSW; 302 } 303 } 304 p->status = USB_RET_SUCCESS; /* Clear previous ASYNC status */ 305 usb_msd_packet_complete(s); 306 } else if (s->data_len == 0) { 307 s->mode = USB_MSDM_CSW; 308 } 309 scsi_req_unref(req); 310 s->req = NULL; 311 } 312 313 static void usb_msd_request_cancelled(SCSIRequest *req) 314 { 315 MSDState *s = DO_UPCAST(MSDState, dev.qdev, req->bus->qbus.parent); 316 317 if (req == s->req) { 318 scsi_req_unref(s->req); 319 s->req = NULL; 320 s->scsi_len = 0; 321 } 322 } 323 324 static void usb_msd_handle_reset(USBDevice *dev) 325 { 326 MSDState *s = (MSDState *)dev; 327 328 DPRINTF("Reset\n"); 329 if (s->req) { 330 scsi_req_cancel(s->req); 331 } 332 assert(s->req == NULL); 333 334 if (s->packet) { 335 s->packet->status = USB_RET_STALL; 336 usb_msd_packet_complete(s); 337 } 338 339 s->mode = USB_MSDM_CBW; 340 } 341 342 static void usb_msd_handle_control(USBDevice *dev, USBPacket *p, 343 int request, int value, int index, int length, uint8_t *data) 344 { 345 MSDState *s = (MSDState *)dev; 346 SCSIDevice *scsi_dev; 347 int ret, maxlun; 348 349 ret = usb_desc_handle_control(dev, p, request, value, index, length, data); 350 if (ret >= 0) { 351 return; 352 } 353 354 switch (request) { 355 case EndpointOutRequest | USB_REQ_CLEAR_FEATURE: 356 break; 357 /* Class specific requests. */ 358 case ClassInterfaceOutRequest | MassStorageReset: 359 /* Reset state ready for the next CBW. */ 360 s->mode = USB_MSDM_CBW; 361 break; 362 case ClassInterfaceRequest | GetMaxLun: 363 maxlun = 0; 364 for (;;) { 365 scsi_dev = scsi_device_find(&s->bus, 0, 0, maxlun+1); 366 if (scsi_dev == NULL) { 367 break; 368 } 369 if (scsi_dev->lun != maxlun+1) { 370 break; 371 } 372 maxlun++; 373 } 374 DPRINTF("MaxLun %d\n", maxlun); 375 data[0] = maxlun; 376 p->actual_length = 1; 377 break; 378 default: 379 p->status = USB_RET_STALL; 380 break; 381 } 382 } 383 384 static void usb_msd_cancel_io(USBDevice *dev, USBPacket *p) 385 { 386 MSDState *s = DO_UPCAST(MSDState, dev, dev); 387 388 assert(s->packet == p); 389 s->packet = NULL; 390 391 if (s->req) { 392 scsi_req_cancel(s->req); 393 } 394 } 395 396 static void usb_msd_handle_data(USBDevice *dev, USBPacket *p) 397 { 398 MSDState *s = (MSDState *)dev; 399 uint32_t tag; 400 struct usb_msd_cbw cbw; 401 uint8_t devep = p->ep->nr; 402 SCSIDevice *scsi_dev; 403 404 switch (p->pid) { 405 case USB_TOKEN_OUT: 406 if (devep != 2) 407 goto fail; 408 409 switch (s->mode) { 410 case USB_MSDM_CBW: 411 if (p->iov.size != 31) { 412 fprintf(stderr, "usb-msd: Bad CBW size"); 413 goto fail; 414 } 415 usb_packet_copy(p, &cbw, 31); 416 if (le32_to_cpu(cbw.sig) != 0x43425355) { 417 fprintf(stderr, "usb-msd: Bad signature %08x\n", 418 le32_to_cpu(cbw.sig)); 419 goto fail; 420 } 421 DPRINTF("Command on LUN %d\n", cbw.lun); 422 scsi_dev = scsi_device_find(&s->bus, 0, 0, cbw.lun); 423 if (scsi_dev == NULL) { 424 fprintf(stderr, "usb-msd: Bad LUN %d\n", cbw.lun); 425 goto fail; 426 } 427 tag = le32_to_cpu(cbw.tag); 428 s->data_len = le32_to_cpu(cbw.data_len); 429 if (s->data_len == 0) { 430 s->mode = USB_MSDM_CSW; 431 } else if (cbw.flags & 0x80) { 432 s->mode = USB_MSDM_DATAIN; 433 } else { 434 s->mode = USB_MSDM_DATAOUT; 435 } 436 DPRINTF("Command tag 0x%x flags %08x len %d data %d\n", 437 tag, cbw.flags, cbw.cmd_len, s->data_len); 438 assert(le32_to_cpu(s->csw.residue) == 0); 439 s->scsi_len = 0; 440 s->req = scsi_req_new(scsi_dev, tag, cbw.lun, cbw.cmd, NULL); 441 #ifdef DEBUG_MSD 442 scsi_req_print(s->req); 443 #endif 444 scsi_req_enqueue(s->req); 445 if (s->req && s->req->cmd.xfer != SCSI_XFER_NONE) { 446 scsi_req_continue(s->req); 447 } 448 break; 449 450 case USB_MSDM_DATAOUT: 451 DPRINTF("Data out %zd/%d\n", p->iov.size, s->data_len); 452 if (p->iov.size > s->data_len) { 453 goto fail; 454 } 455 456 if (s->scsi_len) { 457 usb_msd_copy_data(s, p); 458 } 459 if (le32_to_cpu(s->csw.residue)) { 460 int len = p->iov.size - p->actual_length; 461 if (len) { 462 usb_packet_skip(p, len); 463 s->data_len -= len; 464 if (s->data_len == 0) { 465 s->mode = USB_MSDM_CSW; 466 } 467 } 468 } 469 if (p->actual_length < p->iov.size) { 470 DPRINTF("Deferring packet %p [wait data-out]\n", p); 471 s->packet = p; 472 p->status = USB_RET_ASYNC; 473 } 474 break; 475 476 default: 477 DPRINTF("Unexpected write (len %zd)\n", p->iov.size); 478 goto fail; 479 } 480 break; 481 482 case USB_TOKEN_IN: 483 if (devep != 1) 484 goto fail; 485 486 switch (s->mode) { 487 case USB_MSDM_DATAOUT: 488 if (s->data_len != 0 || p->iov.size < 13) { 489 goto fail; 490 } 491 /* Waiting for SCSI write to complete. */ 492 s->packet = p; 493 p->status = USB_RET_ASYNC; 494 break; 495 496 case USB_MSDM_CSW: 497 if (p->iov.size < 13) { 498 goto fail; 499 } 500 501 if (s->req) { 502 /* still in flight */ 503 DPRINTF("Deferring packet %p [wait status]\n", p); 504 s->packet = p; 505 p->status = USB_RET_ASYNC; 506 } else { 507 usb_msd_send_status(s, p); 508 s->mode = USB_MSDM_CBW; 509 } 510 break; 511 512 case USB_MSDM_DATAIN: 513 DPRINTF("Data in %zd/%d, scsi_len %d\n", 514 p->iov.size, s->data_len, s->scsi_len); 515 if (s->scsi_len) { 516 usb_msd_copy_data(s, p); 517 } 518 if (le32_to_cpu(s->csw.residue)) { 519 int len = p->iov.size - p->actual_length; 520 if (len) { 521 usb_packet_skip(p, len); 522 s->data_len -= len; 523 if (s->data_len == 0) { 524 s->mode = USB_MSDM_CSW; 525 } 526 } 527 } 528 if (p->actual_length < p->iov.size) { 529 DPRINTF("Deferring packet %p [wait data-in]\n", p); 530 s->packet = p; 531 p->status = USB_RET_ASYNC; 532 } 533 break; 534 535 default: 536 DPRINTF("Unexpected read (len %zd)\n", p->iov.size); 537 goto fail; 538 } 539 break; 540 541 default: 542 DPRINTF("Bad token\n"); 543 fail: 544 p->status = USB_RET_STALL; 545 break; 546 } 547 } 548 549 static void usb_msd_password_cb(void *opaque, int err) 550 { 551 MSDState *s = opaque; 552 553 if (!err) 554 err = usb_device_attach(&s->dev); 555 556 if (err) 557 qdev_unplug(&s->dev.qdev, NULL); 558 } 559 560 static void *usb_msd_load_request(QEMUFile *f, SCSIRequest *req) 561 { 562 MSDState *s = DO_UPCAST(MSDState, dev.qdev, req->bus->qbus.parent); 563 564 /* nothing to load, just store req in our state struct */ 565 assert(s->req == NULL); 566 scsi_req_ref(req); 567 s->req = req; 568 return NULL; 569 } 570 571 static const struct SCSIBusInfo usb_msd_scsi_info_storage = { 572 .tcq = false, 573 .max_target = 0, 574 .max_lun = 0, 575 576 .transfer_data = usb_msd_transfer_data, 577 .complete = usb_msd_command_complete, 578 .cancel = usb_msd_request_cancelled, 579 .load_request = usb_msd_load_request, 580 }; 581 582 static const struct SCSIBusInfo usb_msd_scsi_info_bot = { 583 .tcq = false, 584 .max_target = 0, 585 .max_lun = 15, 586 587 .transfer_data = usb_msd_transfer_data, 588 .complete = usb_msd_command_complete, 589 .cancel = usb_msd_request_cancelled, 590 .load_request = usb_msd_load_request, 591 }; 592 593 static int usb_msd_initfn_storage(USBDevice *dev) 594 { 595 MSDState *s = DO_UPCAST(MSDState, dev, dev); 596 BlockDriverState *bs = s->conf.bs; 597 SCSIDevice *scsi_dev; 598 599 if (!bs) { 600 error_report("drive property not set"); 601 return -1; 602 } 603 604 blkconf_serial(&s->conf, &s->serial); 605 606 /* 607 * Hack alert: this pretends to be a block device, but it's really 608 * a SCSI bus that can serve only a single device, which it 609 * creates automatically. But first it needs to detach from its 610 * blockdev, or else scsi_bus_legacy_add_drive() dies when it 611 * attaches again. 612 * 613 * The hack is probably a bad idea. 614 */ 615 bdrv_detach_dev(bs, &s->dev.qdev); 616 s->conf.bs = NULL; 617 618 if (s->serial) { 619 usb_desc_set_string(dev, STR_SERIALNUMBER, s->serial); 620 } else { 621 usb_desc_create_serial(dev); 622 } 623 624 usb_desc_init(dev); 625 scsi_bus_new(&s->bus, &s->dev.qdev, &usb_msd_scsi_info_storage); 626 scsi_dev = scsi_bus_legacy_add_drive(&s->bus, bs, 0, !!s->removable, 627 s->conf.bootindex); 628 if (!scsi_dev) { 629 return -1; 630 } 631 s->bus.qbus.allow_hotplug = 0; 632 usb_msd_handle_reset(dev); 633 634 if (bdrv_key_required(bs)) { 635 if (cur_mon) { 636 monitor_read_bdrv_key_start(cur_mon, bs, usb_msd_password_cb, s); 637 s->dev.auto_attach = 0; 638 } else { 639 autostart = 0; 640 } 641 } 642 643 return 0; 644 } 645 646 static int usb_msd_initfn_bot(USBDevice *dev) 647 { 648 MSDState *s = DO_UPCAST(MSDState, dev, dev); 649 650 usb_desc_create_serial(dev); 651 usb_desc_init(dev); 652 scsi_bus_new(&s->bus, &s->dev.qdev, &usb_msd_scsi_info_bot); 653 s->bus.qbus.allow_hotplug = 0; 654 usb_msd_handle_reset(dev); 655 656 return 0; 657 } 658 659 static USBDevice *usb_msd_init(USBBus *bus, const char *filename) 660 { 661 static int nr=0; 662 char id[8]; 663 QemuOpts *opts; 664 DriveInfo *dinfo; 665 USBDevice *dev; 666 const char *p1; 667 char fmt[32]; 668 669 /* parse -usbdevice disk: syntax into drive opts */ 670 snprintf(id, sizeof(id), "usb%d", nr++); 671 opts = qemu_opts_create(qemu_find_opts("drive"), id, 0, NULL); 672 673 p1 = strchr(filename, ':'); 674 if (p1++) { 675 const char *p2; 676 677 if (strstart(filename, "format=", &p2)) { 678 int len = MIN(p1 - p2, sizeof(fmt)); 679 pstrcpy(fmt, len, p2); 680 qemu_opt_set(opts, "format", fmt); 681 } else if (*filename != ':') { 682 printf("unrecognized USB mass-storage option %s\n", filename); 683 return NULL; 684 } 685 filename = p1; 686 } 687 if (!*filename) { 688 printf("block device specification needed\n"); 689 return NULL; 690 } 691 qemu_opt_set(opts, "file", filename); 692 qemu_opt_set(opts, "if", "none"); 693 694 /* create host drive */ 695 dinfo = drive_init(opts, 0); 696 if (!dinfo) { 697 qemu_opts_del(opts); 698 return NULL; 699 } 700 701 /* create guest device */ 702 dev = usb_create(bus, "usb-storage"); 703 if (!dev) { 704 return NULL; 705 } 706 if (qdev_prop_set_drive(&dev->qdev, "drive", dinfo->bdrv) < 0) { 707 qdev_free(&dev->qdev); 708 return NULL; 709 } 710 if (qdev_init(&dev->qdev) < 0) 711 return NULL; 712 713 return dev; 714 } 715 716 static const VMStateDescription vmstate_usb_msd = { 717 .name = "usb-storage", 718 .version_id = 1, 719 .minimum_version_id = 1, 720 .fields = (VMStateField []) { 721 VMSTATE_USB_DEVICE(dev, MSDState), 722 VMSTATE_UINT32(mode, MSDState), 723 VMSTATE_UINT32(scsi_len, MSDState), 724 VMSTATE_UINT32(scsi_off, MSDState), 725 VMSTATE_UINT32(data_len, MSDState), 726 VMSTATE_UINT32(csw.sig, MSDState), 727 VMSTATE_UINT32(csw.tag, MSDState), 728 VMSTATE_UINT32(csw.residue, MSDState), 729 VMSTATE_UINT8(csw.status, MSDState), 730 VMSTATE_END_OF_LIST() 731 } 732 }; 733 734 static Property msd_properties[] = { 735 DEFINE_BLOCK_PROPERTIES(MSDState, conf), 736 DEFINE_PROP_STRING("serial", MSDState, serial), 737 DEFINE_PROP_BIT("removable", MSDState, removable, 0, false), 738 DEFINE_PROP_END_OF_LIST(), 739 }; 740 741 static void usb_msd_class_initfn_common(ObjectClass *klass) 742 { 743 DeviceClass *dc = DEVICE_CLASS(klass); 744 USBDeviceClass *uc = USB_DEVICE_CLASS(klass); 745 746 uc->product_desc = "QEMU USB MSD"; 747 uc->usb_desc = &desc; 748 uc->cancel_packet = usb_msd_cancel_io; 749 uc->handle_attach = usb_desc_attach; 750 uc->handle_reset = usb_msd_handle_reset; 751 uc->handle_control = usb_msd_handle_control; 752 uc->handle_data = usb_msd_handle_data; 753 dc->fw_name = "storage"; 754 dc->vmsd = &vmstate_usb_msd; 755 } 756 757 static void usb_msd_class_initfn_storage(ObjectClass *klass, void *data) 758 { 759 DeviceClass *dc = DEVICE_CLASS(klass); 760 USBDeviceClass *uc = USB_DEVICE_CLASS(klass); 761 762 uc->init = usb_msd_initfn_storage; 763 dc->props = msd_properties; 764 usb_msd_class_initfn_common(klass); 765 } 766 767 static void usb_msd_class_initfn_bot(ObjectClass *klass, void *data) 768 { 769 USBDeviceClass *uc = USB_DEVICE_CLASS(klass); 770 771 uc->init = usb_msd_initfn_bot; 772 usb_msd_class_initfn_common(klass); 773 } 774 775 static const TypeInfo msd_info = { 776 .name = "usb-storage", 777 .parent = TYPE_USB_DEVICE, 778 .instance_size = sizeof(MSDState), 779 .class_init = usb_msd_class_initfn_storage, 780 }; 781 782 static const TypeInfo bot_info = { 783 .name = "usb-bot", 784 .parent = TYPE_USB_DEVICE, 785 .instance_size = sizeof(MSDState), 786 .class_init = usb_msd_class_initfn_bot, 787 }; 788 789 static void usb_msd_register_types(void) 790 { 791 type_register_static(&msd_info); 792 type_register_static(&bot_info); 793 usb_legacy_register("usb-storage", "disk", usb_msd_init); 794 } 795 796 type_init(usb_msd_register_types) 797