target/arm/kvm: pmu: split init and set-irq stages
[qemu/ar7.git] / hw / usb / dev-storage.c
blob8a61ec94c80536cdf504310ef9429b5f30a3231d
1 /*
2 * USB Mass Storage Device emulation
4 * Copyright (c) 2006 CodeSourcery.
5 * Written by Paul Brook
7 * This code is licensed under the LGPL.
8 */
10 #include "qemu/osdep.h"
11 #include "qapi/error.h"
12 #include "qemu-common.h"
13 #include "qemu/error-report.h"
14 #include "qemu/option.h"
15 #include "qemu/config-file.h"
16 #include "hw/usb.h"
17 #include "hw/usb/desc.h"
18 #include "hw/scsi/scsi.h"
19 #include "ui/console.h"
20 #include "monitor/monitor.h"
21 #include "sysemu/sysemu.h"
22 #include "sysemu/block-backend.h"
23 #include "sysemu/blockdev.h"
24 #include "qapi/visitor.h"
25 #include "qemu/cutils.h"
27 //#define DEBUG_MSD
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
36 /* USB requests. */
37 #define MassStorageReset 0xff
38 #define GetMaxLun 0xfe
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. */
47 struct usb_msd_csw {
48 uint32_t sig;
49 uint32_t tag;
50 uint32_t residue;
51 uint8_t status;
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;
71 #define TYPE_USB_STORAGE "usb-storage-dev"
72 #define USB_STORAGE_DEV(obj) OBJECT_CHECK(MSDState, (obj), TYPE_USB_STORAGE)
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];
84 enum {
85 STR_MANUFACTURER = 1,
86 STR_PRODUCT,
87 STR_SERIALNUMBER,
88 STR_CONFIG_FULL,
89 STR_CONFIG_HIGH,
90 STR_CONFIG_SUPER,
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)",
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[]) {
110 .bEndpointAddress = USB_DIR_IN | 0x01,
111 .bmAttributes = USB_ENDPOINT_XFER_BULK,
112 .wMaxPacketSize = 64,
114 .bEndpointAddress = USB_DIR_OUT | 0x02,
115 .bmAttributes = USB_ENDPOINT_XFER_BULK,
116 .wMaxPacketSize = 64,
121 static const USBDescDevice desc_device_full = {
122 .bcdUSB = 0x0200,
123 .bMaxPacketSize0 = 8,
124 .bNumConfigurations = 1,
125 .confs = (USBDescConfig[]) {
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,
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[]) {
145 .bEndpointAddress = USB_DIR_IN | 0x01,
146 .bmAttributes = USB_ENDPOINT_XFER_BULK,
147 .wMaxPacketSize = 512,
149 .bEndpointAddress = USB_DIR_OUT | 0x02,
150 .bmAttributes = USB_ENDPOINT_XFER_BULK,
151 .wMaxPacketSize = 512,
156 static const USBDescDevice desc_device_high = {
157 .bcdUSB = 0x0200,
158 .bMaxPacketSize0 = 64,
159 .bNumConfigurations = 1,
160 .confs = (USBDescConfig[]) {
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,
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[]) {
180 .bEndpointAddress = USB_DIR_IN | 0x01,
181 .bmAttributes = USB_ENDPOINT_XFER_BULK,
182 .wMaxPacketSize = 1024,
183 .bMaxBurst = 15,
185 .bEndpointAddress = USB_DIR_OUT | 0x02,
186 .bmAttributes = USB_ENDPOINT_XFER_BULK,
187 .wMaxPacketSize = 1024,
188 .bMaxBurst = 15,
193 static const USBDescDevice desc_device_super = {
194 .bcdUSB = 0x0300,
195 .bMaxPacketSize0 = 9,
196 .bNumConfigurations = 1,
197 .confs = (USBDescConfig[]) {
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,
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,
218 .full = &desc_device_full,
219 .high = &desc_device_high,
220 .super = &desc_device_super,
221 .str = desc_strings,
224 static void usb_msd_copy_data(MSDState *s, USBPacket *p)
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);
239 static void usb_msd_send_status(MSDState *s, USBPacket *p)
241 int len;
243 DPRINTF("Command status %d tag 0x%x, len %zd\n",
244 s->csw.status, le32_to_cpu(s->csw.tag), p->iov.size);
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));
252 static void usb_msd_packet_complete(MSDState *s)
254 USBPacket *p = s->packet;
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);
264 static void usb_msd_transfer_data(SCSIRequest *req, uint32_t len)
266 MSDState *s = DO_UPCAST(MSDState, dev.qdev, req->bus->qbus.parent);
267 USBPacket *p = s->packet;
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);
282 static void usb_msd_command_complete(SCSIRequest *req, uint32_t status, size_t resid)
284 MSDState *s = DO_UPCAST(MSDState, dev.qdev, req->bus->qbus.parent);
285 USBPacket *p = s->packet;
287 DPRINTF("Command complete %d tag 0x%x\n", status, req->tag);
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;
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;
309 if (s->data_len == 0) {
310 s->mode = USB_MSDM_CSW;
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;
318 scsi_req_unref(req);
319 s->req = NULL;
322 static void usb_msd_request_cancelled(SCSIRequest *req)
324 MSDState *s = DO_UPCAST(MSDState, dev.qdev, req->bus->qbus.parent);
326 if (req == s->req) {
327 scsi_req_unref(s->req);
328 s->req = NULL;
329 s->scsi_len = 0;
333 static void usb_msd_handle_reset(USBDevice *dev)
335 MSDState *s = (MSDState *)dev;
337 DPRINTF("Reset\n");
338 if (s->req) {
339 scsi_req_cancel(s->req);
341 assert(s->req == NULL);
343 if (s->packet) {
344 s->packet->status = USB_RET_STALL;
345 usb_msd_packet_complete(s);
348 s->mode = USB_MSDM_CBW;
351 static void usb_msd_handle_control(USBDevice *dev, USBPacket *p,
352 int request, int value, int index, int length, uint8_t *data)
354 MSDState *s = (MSDState *)dev;
355 SCSIDevice *scsi_dev;
356 int ret, maxlun;
358 ret = usb_desc_handle_control(dev, p, request, value, index, length, data);
359 if (ret >= 0) {
360 return;
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;
378 if (scsi_dev->lun != maxlun+1) {
379 break;
381 maxlun++;
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;
393 static void usb_msd_cancel_io(USBDevice *dev, USBPacket *p)
395 MSDState *s = USB_STORAGE_DEV(dev);
397 assert(s->packet == p);
398 s->packet = NULL;
400 if (s->req) {
401 scsi_req_cancel(s->req);
405 static void usb_msd_handle_data(USBDevice *dev, USBPacket *p)
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;
414 switch (p->pid) {
415 case USB_TOKEN_OUT:
416 if (devep != 2)
417 goto fail;
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;
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;
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;
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;
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);
458 break;
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;
466 if (s->scsi_len) {
467 usb_msd_copy_data(s, p);
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;
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;
484 break;
486 default:
487 DPRINTF("Unexpected write (len %zd)\n", p->iov.size);
488 goto fail;
490 break;
492 case USB_TOKEN_IN:
493 if (devep != 1)
494 goto fail;
496 switch (s->mode) {
497 case USB_MSDM_DATAOUT:
498 if (s->data_len != 0 || p->iov.size < 13) {
499 goto fail;
501 /* Waiting for SCSI write to complete. */
502 s->packet = p;
503 p->status = USB_RET_ASYNC;
504 break;
506 case USB_MSDM_CSW:
507 if (p->iov.size < 13) {
508 goto fail;
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;
520 break;
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);
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;
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;
543 break;
545 default:
546 DPRINTF("Unexpected read (len %zd)\n", p->iov.size);
547 goto fail;
549 break;
551 default:
552 DPRINTF("Bad token\n");
553 fail:
554 p->status = USB_RET_STALL;
555 break;
559 static void *usb_msd_load_request(QEMUFile *f, SCSIRequest *req)
561 MSDState *s = DO_UPCAST(MSDState, dev.qdev, req->bus->qbus.parent);
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;
570 static const struct SCSIBusInfo usb_msd_scsi_info_storage = {
571 .tcq = false,
572 .max_target = 0,
573 .max_lun = 0,
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,
581 static const struct SCSIBusInfo usb_msd_scsi_info_bot = {
582 .tcq = false,
583 .max_target = 0,
584 .max_lun = 15,
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,
592 static void usb_msd_unrealize_storage(USBDevice *dev, Error **errp)
594 MSDState *s = USB_STORAGE_DEV(dev);
596 object_unref(OBJECT(&s->bus));
599 static void usb_msd_realize_storage(USBDevice *dev, Error **errp)
601 MSDState *s = USB_STORAGE_DEV(dev);
602 BlockBackend *blk = s->conf.blk;
603 SCSIDevice *scsi_dev;
604 Error *err = NULL;
606 if (!blk) {
607 error_setg(errp, "drive property not set");
608 return;
611 blkconf_serial(&s->conf, &dev->serial);
612 blkconf_blocksizes(&s->conf);
613 blkconf_apply_backend_options(&s->conf, blk_is_read_only(blk), true, &err);
614 if (err) {
615 error_propagate(errp, err);
616 return;
620 * Hack alert: this pretends to be a block device, but it's really
621 * a SCSI bus that can serve only a single device, which it
622 * creates automatically. But first it needs to detach from its
623 * blockdev, or else scsi_bus_legacy_add_drive() dies when it
624 * attaches again. We also need to take another reference so that
625 * blk_detach_dev() doesn't free blk while we still need it.
627 * The hack is probably a bad idea.
629 blk_ref(blk);
630 blk_detach_dev(blk, &s->dev.qdev);
631 s->conf.blk = NULL;
633 usb_desc_create_serial(dev);
634 usb_desc_init(dev);
635 scsi_bus_new(&s->bus, sizeof(s->bus), DEVICE(dev),
636 &usb_msd_scsi_info_storage, NULL);
637 scsi_dev = scsi_bus_legacy_add_drive(&s->bus, blk, 0, !!s->removable,
638 s->conf.bootindex, dev->serial,
639 &err);
640 blk_unref(blk);
641 if (!scsi_dev) {
642 error_propagate(errp, err);
643 return;
645 usb_msd_handle_reset(dev);
646 s->scsi_dev = scsi_dev;
649 static void usb_msd_unrealize_bot(USBDevice *dev, Error **errp)
651 MSDState *s = USB_STORAGE_DEV(dev);
653 object_unref(OBJECT(&s->bus));
656 static void usb_msd_realize_bot(USBDevice *dev, Error **errp)
658 MSDState *s = USB_STORAGE_DEV(dev);
659 DeviceState *d = DEVICE(dev);
661 usb_desc_create_serial(dev);
662 usb_desc_init(dev);
663 if (d->hotplugged) {
664 s->dev.auto_attach = 0;
667 scsi_bus_new(&s->bus, sizeof(s->bus), DEVICE(dev),
668 &usb_msd_scsi_info_bot, NULL);
669 usb_msd_handle_reset(dev);
672 static USBDevice *usb_msd_init(USBBus *bus, const char *filename)
674 static int nr=0;
675 Error *err = NULL;
676 char id[8];
677 QemuOpts *opts;
678 DriveInfo *dinfo;
679 USBDevice *dev;
680 const char *p1;
681 char fmt[32];
683 /* parse -usbdevice disk: syntax into drive opts */
684 do {
685 snprintf(id, sizeof(id), "usb%d", nr++);
686 opts = qemu_opts_create(qemu_find_opts("drive"), id, 1, NULL);
687 } while (!opts);
689 p1 = strchr(filename, ':');
690 if (p1++) {
691 const char *p2;
693 if (strstart(filename, "format=", &p2)) {
694 int len = MIN(p1 - p2, sizeof(fmt));
695 pstrcpy(fmt, len, p2);
696 qemu_opt_set(opts, "format", fmt, &error_abort);
697 } else if (*filename != ':') {
698 error_report("unrecognized USB mass-storage option %s", filename);
699 return NULL;
701 filename = p1;
703 if (!*filename) {
704 error_report("block device specification needed");
705 return NULL;
707 qemu_opt_set(opts, "file", filename, &error_abort);
708 qemu_opt_set(opts, "if", "none", &error_abort);
710 /* create host drive */
711 dinfo = drive_new(opts, 0);
712 if (!dinfo) {
713 qemu_opts_del(opts);
714 return NULL;
717 /* create guest device */
718 dev = usb_create(bus, "usb-storage");
719 qdev_prop_set_drive(&dev->qdev, "drive", blk_by_legacy_dinfo(dinfo),
720 &err);
721 if (err) {
722 error_report_err(err);
723 object_unparent(OBJECT(dev));
724 return NULL;
726 return dev;
729 static const VMStateDescription vmstate_usb_msd = {
730 .name = "usb-storage",
731 .version_id = 1,
732 .minimum_version_id = 1,
733 .fields = (VMStateField[]) {
734 VMSTATE_USB_DEVICE(dev, MSDState),
735 VMSTATE_UINT32(mode, MSDState),
736 VMSTATE_UINT32(scsi_len, MSDState),
737 VMSTATE_UINT32(scsi_off, MSDState),
738 VMSTATE_UINT32(data_len, MSDState),
739 VMSTATE_UINT32(csw.sig, MSDState),
740 VMSTATE_UINT32(csw.tag, MSDState),
741 VMSTATE_UINT32(csw.residue, MSDState),
742 VMSTATE_UINT8(csw.status, MSDState),
743 VMSTATE_END_OF_LIST()
747 static Property msd_properties[] = {
748 DEFINE_BLOCK_PROPERTIES(MSDState, conf),
749 DEFINE_PROP_BIT("removable", MSDState, removable, 0, false),
750 DEFINE_PROP_END_OF_LIST(),
753 static void usb_msd_class_initfn_common(ObjectClass *klass, void *data)
755 DeviceClass *dc = DEVICE_CLASS(klass);
756 USBDeviceClass *uc = USB_DEVICE_CLASS(klass);
758 uc->product_desc = "QEMU USB MSD";
759 uc->usb_desc = &desc;
760 uc->cancel_packet = usb_msd_cancel_io;
761 uc->handle_attach = usb_desc_attach;
762 uc->handle_reset = usb_msd_handle_reset;
763 uc->handle_control = usb_msd_handle_control;
764 uc->handle_data = usb_msd_handle_data;
765 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
766 dc->fw_name = "storage";
767 dc->vmsd = &vmstate_usb_msd;
770 static void usb_msd_class_initfn_storage(ObjectClass *klass, void *data)
772 DeviceClass *dc = DEVICE_CLASS(klass);
773 USBDeviceClass *uc = USB_DEVICE_CLASS(klass);
775 uc->realize = usb_msd_realize_storage;
776 uc->unrealize = usb_msd_unrealize_storage;
777 dc->props = msd_properties;
780 static void usb_msd_get_bootindex(Object *obj, Visitor *v, const char *name,
781 void *opaque, Error **errp)
783 USBDevice *dev = USB_DEVICE(obj);
784 MSDState *s = USB_STORAGE_DEV(dev);
786 visit_type_int32(v, name, &s->conf.bootindex, errp);
789 static void usb_msd_set_bootindex(Object *obj, Visitor *v, const char *name,
790 void *opaque, Error **errp)
792 USBDevice *dev = USB_DEVICE(obj);
793 MSDState *s = USB_STORAGE_DEV(dev);
794 int32_t boot_index;
795 Error *local_err = NULL;
797 visit_type_int32(v, name, &boot_index, &local_err);
798 if (local_err) {
799 goto out;
801 /* check whether bootindex is present in fw_boot_order list */
802 check_boot_index(boot_index, &local_err);
803 if (local_err) {
804 goto out;
806 /* change bootindex to a new one */
807 s->conf.bootindex = boot_index;
809 if (s->scsi_dev) {
810 object_property_set_int(OBJECT(s->scsi_dev), boot_index, "bootindex",
811 &error_abort);
814 out:
815 error_propagate(errp, local_err);
818 static const TypeInfo usb_storage_dev_type_info = {
819 .name = TYPE_USB_STORAGE,
820 .parent = TYPE_USB_DEVICE,
821 .instance_size = sizeof(MSDState),
822 .abstract = true,
823 .class_init = usb_msd_class_initfn_common,
826 static void usb_msd_instance_init(Object *obj)
828 object_property_add(obj, "bootindex", "int32",
829 usb_msd_get_bootindex,
830 usb_msd_set_bootindex, NULL, NULL, NULL);
831 object_property_set_int(obj, -1, "bootindex", NULL);
834 static void usb_msd_class_initfn_bot(ObjectClass *klass, void *data)
836 USBDeviceClass *uc = USB_DEVICE_CLASS(klass);
838 uc->realize = usb_msd_realize_bot;
839 uc->unrealize = usb_msd_unrealize_bot;
840 uc->attached_settable = true;
843 static const TypeInfo msd_info = {
844 .name = "usb-storage",
845 .parent = TYPE_USB_STORAGE,
846 .class_init = usb_msd_class_initfn_storage,
847 .instance_init = usb_msd_instance_init,
850 static const TypeInfo bot_info = {
851 .name = "usb-bot",
852 .parent = TYPE_USB_STORAGE,
853 .class_init = usb_msd_class_initfn_bot,
856 static void usb_msd_register_types(void)
858 type_register_static(&usb_storage_dev_type_info);
859 type_register_static(&msd_info);
860 type_register_static(&bot_info);
861 usb_legacy_register("usb-storage", "disk", usb_msd_init);
864 type_init(usb_msd_register_types)