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Commit | Line | Data |
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5fafdf24 | 1 | /* |
2e5d83bb PB |
2 | * USB Mass Storage Device emulation |
3 | * | |
4 | * Copyright (c) 2006 CodeSourcery. | |
5 | * Written by Paul Brook | |
6 | * | |
7 | * This code is licenced under the LGPL. | |
8 | */ | |
9 | ||
87ecb68b | 10 | #include "qemu-common.h" |
7fc2f2c0 GH |
11 | #include "qemu-option.h" |
12 | #include "qemu-config.h" | |
87ecb68b | 13 | #include "usb.h" |
81bfd2f2 | 14 | #include "usb-desc.h" |
43b443b6 | 15 | #include "scsi.h" |
c0f4ce77 | 16 | #include "console.h" |
b3e461d3 | 17 | #include "monitor.h" |
666daa68 | 18 | #include "sysemu.h" |
2446333c | 19 | #include "blockdev.h" |
2e5d83bb PB |
20 | |
21 | //#define DEBUG_MSD | |
22 | ||
23 | #ifdef DEBUG_MSD | |
001faf32 BS |
24 | #define DPRINTF(fmt, ...) \ |
25 | do { printf("usb-msd: " fmt , ## __VA_ARGS__); } while (0) | |
2e5d83bb | 26 | #else |
001faf32 | 27 | #define DPRINTF(fmt, ...) do {} while(0) |
2e5d83bb PB |
28 | #endif |
29 | ||
30 | /* USB requests. */ | |
31 | #define MassStorageReset 0xff | |
32 | #define GetMaxLun 0xfe | |
33 | ||
34 | enum USBMSDMode { | |
35 | USB_MSDM_CBW, /* Command Block. */ | |
94843f66 | 36 | USB_MSDM_DATAOUT, /* Transfer data to device. */ |
2e5d83bb PB |
37 | USB_MSDM_DATAIN, /* Transfer data from device. */ |
38 | USB_MSDM_CSW /* Command Status. */ | |
39 | }; | |
40 | ||
41 | typedef struct { | |
42 | USBDevice dev; | |
43 | enum USBMSDMode mode; | |
a917d384 PB |
44 | uint32_t scsi_len; |
45 | uint8_t *scsi_buf; | |
46 | uint32_t usb_len; | |
47 | uint8_t *usb_buf; | |
2e5d83bb | 48 | uint32_t data_len; |
a917d384 | 49 | uint32_t residue; |
2e5d83bb | 50 | uint32_t tag; |
5c6c0e51 | 51 | SCSIRequest *req; |
ca9c39fa | 52 | SCSIBus bus; |
428c149b | 53 | BlockConf conf; |
c3a90cb1 | 54 | char *serial; |
2e5d83bb | 55 | SCSIDevice *scsi_dev; |
6bb7b867 | 56 | uint32_t removable; |
2e5d83bb | 57 | int result; |
4d611c9a PB |
58 | /* For async completion. */ |
59 | USBPacket *packet; | |
2e5d83bb PB |
60 | } MSDState; |
61 | ||
a917d384 PB |
62 | struct usb_msd_cbw { |
63 | uint32_t sig; | |
64 | uint32_t tag; | |
65 | uint32_t data_len; | |
66 | uint8_t flags; | |
67 | uint8_t lun; | |
68 | uint8_t cmd_len; | |
69 | uint8_t cmd[16]; | |
70 | }; | |
71 | ||
72 | struct usb_msd_csw { | |
73 | uint32_t sig; | |
74 | uint32_t tag; | |
75 | uint32_t residue; | |
76 | uint8_t status; | |
77 | }; | |
78 | ||
81bfd2f2 GH |
79 | enum { |
80 | STR_MANUFACTURER = 1, | |
81 | STR_PRODUCT, | |
82 | STR_SERIALNUMBER, | |
ca0c730d GH |
83 | STR_CONFIG_FULL, |
84 | STR_CONFIG_HIGH, | |
2e5d83bb PB |
85 | }; |
86 | ||
81bfd2f2 GH |
87 | static const USBDescStrings desc_strings = { |
88 | [STR_MANUFACTURER] = "QEMU " QEMU_VERSION, | |
89 | [STR_PRODUCT] = "QEMU USB HARDDRIVE", | |
90 | [STR_SERIALNUMBER] = "1", | |
ca0c730d GH |
91 | [STR_CONFIG_FULL] = "Full speed config (usb 1.1)", |
92 | [STR_CONFIG_HIGH] = "High speed config (usb 2.0)", | |
81bfd2f2 GH |
93 | }; |
94 | ||
ca0c730d | 95 | static const USBDescIface desc_iface_full = { |
81bfd2f2 GH |
96 | .bInterfaceNumber = 0, |
97 | .bNumEndpoints = 2, | |
98 | .bInterfaceClass = USB_CLASS_MASS_STORAGE, | |
99 | .bInterfaceSubClass = 0x06, /* SCSI */ | |
100 | .bInterfaceProtocol = 0x50, /* Bulk */ | |
101 | .eps = (USBDescEndpoint[]) { | |
102 | { | |
103 | .bEndpointAddress = USB_DIR_IN | 0x01, | |
104 | .bmAttributes = USB_ENDPOINT_XFER_BULK, | |
105 | .wMaxPacketSize = 64, | |
106 | },{ | |
107 | .bEndpointAddress = USB_DIR_OUT | 0x02, | |
108 | .bmAttributes = USB_ENDPOINT_XFER_BULK, | |
109 | .wMaxPacketSize = 64, | |
110 | }, | |
111 | } | |
112 | }; | |
113 | ||
ca0c730d GH |
114 | static const USBDescDevice desc_device_full = { |
115 | .bcdUSB = 0x0200, | |
81bfd2f2 GH |
116 | .bMaxPacketSize0 = 8, |
117 | .bNumConfigurations = 1, | |
118 | .confs = (USBDescConfig[]) { | |
119 | { | |
120 | .bNumInterfaces = 1, | |
121 | .bConfigurationValue = 1, | |
ca0c730d | 122 | .iConfiguration = STR_CONFIG_FULL, |
81bfd2f2 | 123 | .bmAttributes = 0xc0, |
add75088 | 124 | .nif = 1, |
ca0c730d GH |
125 | .ifs = &desc_iface_full, |
126 | }, | |
127 | }, | |
128 | }; | |
129 | ||
130 | static const USBDescIface desc_iface_high = { | |
131 | .bInterfaceNumber = 0, | |
132 | .bNumEndpoints = 2, | |
133 | .bInterfaceClass = USB_CLASS_MASS_STORAGE, | |
134 | .bInterfaceSubClass = 0x06, /* SCSI */ | |
135 | .bInterfaceProtocol = 0x50, /* Bulk */ | |
136 | .eps = (USBDescEndpoint[]) { | |
137 | { | |
138 | .bEndpointAddress = USB_DIR_IN | 0x01, | |
139 | .bmAttributes = USB_ENDPOINT_XFER_BULK, | |
140 | .wMaxPacketSize = 512, | |
141 | },{ | |
142 | .bEndpointAddress = USB_DIR_OUT | 0x02, | |
143 | .bmAttributes = USB_ENDPOINT_XFER_BULK, | |
144 | .wMaxPacketSize = 512, | |
145 | }, | |
146 | } | |
147 | }; | |
148 | ||
149 | static const USBDescDevice desc_device_high = { | |
150 | .bcdUSB = 0x0200, | |
151 | .bMaxPacketSize0 = 64, | |
152 | .bNumConfigurations = 1, | |
153 | .confs = (USBDescConfig[]) { | |
154 | { | |
155 | .bNumInterfaces = 1, | |
156 | .bConfigurationValue = 1, | |
157 | .iConfiguration = STR_CONFIG_HIGH, | |
158 | .bmAttributes = 0xc0, | |
add75088 | 159 | .nif = 1, |
ca0c730d | 160 | .ifs = &desc_iface_high, |
81bfd2f2 GH |
161 | }, |
162 | }, | |
163 | }; | |
164 | ||
165 | static const USBDesc desc = { | |
166 | .id = { | |
167 | .idVendor = 0, | |
168 | .idProduct = 0, | |
169 | .bcdDevice = 0, | |
170 | .iManufacturer = STR_MANUFACTURER, | |
171 | .iProduct = STR_PRODUCT, | |
172 | .iSerialNumber = STR_SERIALNUMBER, | |
173 | }, | |
ca0c730d GH |
174 | .full = &desc_device_full, |
175 | .high = &desc_device_high, | |
81bfd2f2 | 176 | .str = desc_strings, |
2e5d83bb PB |
177 | }; |
178 | ||
a917d384 PB |
179 | static void usb_msd_copy_data(MSDState *s) |
180 | { | |
181 | uint32_t len; | |
182 | len = s->usb_len; | |
183 | if (len > s->scsi_len) | |
184 | len = s->scsi_len; | |
185 | if (s->mode == USB_MSDM_DATAIN) { | |
186 | memcpy(s->usb_buf, s->scsi_buf, len); | |
187 | } else { | |
188 | memcpy(s->scsi_buf, s->usb_buf, len); | |
189 | } | |
190 | s->usb_len -= len; | |
191 | s->scsi_len -= len; | |
192 | s->usb_buf += len; | |
193 | s->scsi_buf += len; | |
194 | s->data_len -= len; | |
fa7935c1 | 195 | if (s->scsi_len == 0 || s->data_len == 0) { |
ad3376cc | 196 | scsi_req_continue(s->req); |
a917d384 PB |
197 | } |
198 | } | |
199 | ||
ab4797ad | 200 | static void usb_msd_send_status(MSDState *s, USBPacket *p) |
a917d384 PB |
201 | { |
202 | struct usb_msd_csw csw; | |
ab4797ad | 203 | int len; |
a917d384 PB |
204 | |
205 | csw.sig = cpu_to_le32(0x53425355); | |
206 | csw.tag = cpu_to_le32(s->tag); | |
207 | csw.residue = s->residue; | |
208 | csw.status = s->result; | |
ab4797ad GH |
209 | |
210 | len = MIN(sizeof(csw), p->len); | |
211 | memcpy(p->data, &csw, len); | |
a917d384 PB |
212 | } |
213 | ||
aba1f023 | 214 | static void usb_msd_transfer_data(SCSIRequest *req, uint32_t len) |
2e5d83bb | 215 | { |
5c6c0e51 | 216 | MSDState *s = DO_UPCAST(MSDState, dev.qdev, req->bus->qbus.parent); |
a917d384 | 217 | USBPacket *p = s->packet; |
4d611c9a | 218 | |
5c6c0e51 HR |
219 | if (req->tag != s->tag) { |
220 | fprintf(stderr, "usb-msd: Unexpected SCSI Tag 0x%x\n", req->tag); | |
4d611c9a | 221 | } |
c6df7102 | 222 | |
ad3376cc | 223 | assert((s->mode == USB_MSDM_DATAOUT) == (req->cmd.mode == SCSI_XFER_TO_DEV)); |
aba1f023 | 224 | s->scsi_len = len; |
0c34459b | 225 | s->scsi_buf = scsi_req_get_buf(req); |
a917d384 PB |
226 | if (p) { |
227 | usb_msd_copy_data(s); | |
ebd669a1 | 228 | if (s->packet && s->usb_len == 0) { |
a917d384 | 229 | /* Set s->packet to NULL before calling usb_packet_complete |
94843f66 | 230 | because another request may be issued before |
a917d384 PB |
231 | usb_packet_complete returns. */ |
232 | DPRINTF("Packet complete %p\n", p); | |
233 | s->packet = NULL; | |
13a9a0d3 | 234 | usb_packet_complete(&s->dev, p); |
a917d384 | 235 | } |
4d611c9a | 236 | } |
2e5d83bb PB |
237 | } |
238 | ||
aba1f023 | 239 | static void usb_msd_command_complete(SCSIRequest *req, uint32_t status) |
c6df7102 PB |
240 | { |
241 | MSDState *s = DO_UPCAST(MSDState, dev.qdev, req->bus->qbus.parent); | |
242 | USBPacket *p = s->packet; | |
243 | ||
244 | if (req->tag != s->tag) { | |
245 | fprintf(stderr, "usb-msd: Unexpected SCSI Tag 0x%x\n", req->tag); | |
246 | } | |
aba1f023 | 247 | DPRINTF("Command complete %d\n", status); |
c6df7102 | 248 | s->residue = s->data_len; |
aba1f023 | 249 | s->result = status != 0; |
c6df7102 PB |
250 | if (s->packet) { |
251 | if (s->data_len == 0 && s->mode == USB_MSDM_DATAOUT) { | |
252 | /* A deferred packet with no write data remaining must be | |
253 | the status read packet. */ | |
254 | usb_msd_send_status(s, p); | |
255 | s->mode = USB_MSDM_CBW; | |
256 | } else { | |
257 | if (s->data_len) { | |
258 | s->data_len -= s->usb_len; | |
259 | if (s->mode == USB_MSDM_DATAIN) { | |
260 | memset(s->usb_buf, 0, s->usb_len); | |
261 | } | |
262 | s->usb_len = 0; | |
263 | } | |
264 | if (s->data_len == 0) { | |
265 | s->mode = USB_MSDM_CSW; | |
266 | } | |
267 | } | |
268 | s->packet = NULL; | |
269 | usb_packet_complete(&s->dev, p); | |
270 | } else if (s->data_len == 0) { | |
271 | s->mode = USB_MSDM_CSW; | |
272 | } | |
273 | scsi_req_unref(req); | |
274 | s->req = NULL; | |
275 | } | |
276 | ||
94d3f98a PB |
277 | static void usb_msd_request_cancelled(SCSIRequest *req) |
278 | { | |
279 | MSDState *s = DO_UPCAST(MSDState, dev.qdev, req->bus->qbus.parent); | |
280 | ||
281 | if (req == s->req) { | |
282 | scsi_req_unref(s->req); | |
283 | s->req = NULL; | |
284 | s->packet = NULL; | |
285 | s->scsi_len = 0; | |
286 | } | |
287 | } | |
288 | ||
059809e4 | 289 | static void usb_msd_handle_reset(USBDevice *dev) |
2e5d83bb PB |
290 | { |
291 | MSDState *s = (MSDState *)dev; | |
292 | ||
293 | DPRINTF("Reset\n"); | |
294 | s->mode = USB_MSDM_CBW; | |
2e5d83bb PB |
295 | } |
296 | ||
007fd62f HG |
297 | static int usb_msd_handle_control(USBDevice *dev, USBPacket *p, |
298 | int request, int value, int index, int length, uint8_t *data) | |
2e5d83bb PB |
299 | { |
300 | MSDState *s = (MSDState *)dev; | |
81bfd2f2 | 301 | int ret; |
2e5d83bb | 302 | |
007fd62f | 303 | ret = usb_desc_handle_control(dev, p, request, value, index, length, data); |
81bfd2f2 GH |
304 | if (ret >= 0) { |
305 | return ret; | |
306 | } | |
307 | ||
308 | ret = 0; | |
2e5d83bb | 309 | switch (request) { |
2e5d83bb PB |
310 | case DeviceRequest | USB_REQ_GET_INTERFACE: |
311 | data[0] = 0; | |
312 | ret = 1; | |
313 | break; | |
314 | case DeviceOutRequest | USB_REQ_SET_INTERFACE: | |
315 | ret = 0; | |
316 | break; | |
317 | case EndpointOutRequest | USB_REQ_CLEAR_FEATURE: | |
e5322f76 APR |
318 | ret = 0; |
319 | break; | |
320 | case InterfaceOutRequest | USB_REQ_SET_INTERFACE: | |
2e5d83bb PB |
321 | ret = 0; |
322 | break; | |
323 | /* Class specific requests. */ | |
f3571b1a | 324 | case ClassInterfaceOutRequest | MassStorageReset: |
2e5d83bb PB |
325 | /* Reset state ready for the next CBW. */ |
326 | s->mode = USB_MSDM_CBW; | |
327 | ret = 0; | |
328 | break; | |
f3571b1a | 329 | case ClassInterfaceRequest | GetMaxLun: |
2e5d83bb PB |
330 | data[0] = 0; |
331 | ret = 1; | |
332 | break; | |
333 | default: | |
2e5d83bb PB |
334 | ret = USB_RET_STALL; |
335 | break; | |
336 | } | |
337 | return ret; | |
338 | } | |
339 | ||
eb5e680a | 340 | static void usb_msd_cancel_io(USBDevice *dev, USBPacket *p) |
4d611c9a | 341 | { |
eb5e680a | 342 | MSDState *s = DO_UPCAST(MSDState, dev, dev); |
94d3f98a | 343 | scsi_req_cancel(s->req); |
4d611c9a PB |
344 | } |
345 | ||
346 | static int usb_msd_handle_data(USBDevice *dev, USBPacket *p) | |
2e5d83bb PB |
347 | { |
348 | MSDState *s = (MSDState *)dev; | |
349 | int ret = 0; | |
350 | struct usb_msd_cbw cbw; | |
4d611c9a PB |
351 | uint8_t devep = p->devep; |
352 | uint8_t *data = p->data; | |
353 | int len = p->len; | |
2e5d83bb | 354 | |
4d611c9a | 355 | switch (p->pid) { |
2e5d83bb PB |
356 | case USB_TOKEN_OUT: |
357 | if (devep != 2) | |
358 | goto fail; | |
359 | ||
360 | switch (s->mode) { | |
361 | case USB_MSDM_CBW: | |
362 | if (len != 31) { | |
363 | fprintf(stderr, "usb-msd: Bad CBW size"); | |
364 | goto fail; | |
365 | } | |
366 | memcpy(&cbw, data, 31); | |
367 | if (le32_to_cpu(cbw.sig) != 0x43425355) { | |
368 | fprintf(stderr, "usb-msd: Bad signature %08x\n", | |
369 | le32_to_cpu(cbw.sig)); | |
370 | goto fail; | |
371 | } | |
372 | DPRINTF("Command on LUN %d\n", cbw.lun); | |
373 | if (cbw.lun != 0) { | |
374 | fprintf(stderr, "usb-msd: Bad LUN %d\n", cbw.lun); | |
375 | goto fail; | |
376 | } | |
377 | s->tag = le32_to_cpu(cbw.tag); | |
378 | s->data_len = le32_to_cpu(cbw.data_len); | |
379 | if (s->data_len == 0) { | |
380 | s->mode = USB_MSDM_CSW; | |
381 | } else if (cbw.flags & 0x80) { | |
382 | s->mode = USB_MSDM_DATAIN; | |
383 | } else { | |
384 | s->mode = USB_MSDM_DATAOUT; | |
385 | } | |
386 | DPRINTF("Command tag 0x%x flags %08x len %d data %d\n", | |
387 | s->tag, cbw.flags, cbw.cmd_len, s->data_len); | |
a917d384 | 388 | s->residue = 0; |
ef0bdf77 | 389 | s->scsi_len = 0; |
43a2b339 | 390 | s->req = scsi_req_new(s->scsi_dev, s->tag, 0); |
fc4f0754 | 391 | scsi_req_enqueue(s->req, cbw.cmd); |
a917d384 PB |
392 | /* ??? Should check that USB and SCSI data transfer |
393 | directions match. */ | |
ad3376cc PB |
394 | if (s->mode != USB_MSDM_CSW && s->residue == 0) { |
395 | scsi_req_continue(s->req); | |
a917d384 | 396 | } |
2e5d83bb PB |
397 | ret = len; |
398 | break; | |
399 | ||
400 | case USB_MSDM_DATAOUT: | |
401 | DPRINTF("Data out %d/%d\n", len, s->data_len); | |
402 | if (len > s->data_len) | |
403 | goto fail; | |
404 | ||
a917d384 PB |
405 | s->usb_buf = data; |
406 | s->usb_len = len; | |
407 | if (s->scsi_len) { | |
408 | usb_msd_copy_data(s); | |
409 | } | |
410 | if (s->residue && s->usb_len) { | |
411 | s->data_len -= s->usb_len; | |
412 | if (s->data_len == 0) | |
413 | s->mode = USB_MSDM_CSW; | |
414 | s->usb_len = 0; | |
415 | } | |
416 | if (s->usb_len) { | |
4d611c9a | 417 | DPRINTF("Deferring packet %p\n", p); |
4d611c9a PB |
418 | s->packet = p; |
419 | ret = USB_RET_ASYNC; | |
a917d384 PB |
420 | } else { |
421 | ret = len; | |
4d611c9a | 422 | } |
2e5d83bb PB |
423 | break; |
424 | ||
425 | default: | |
426 | DPRINTF("Unexpected write (len %d)\n", len); | |
427 | goto fail; | |
428 | } | |
429 | break; | |
430 | ||
431 | case USB_TOKEN_IN: | |
432 | if (devep != 1) | |
433 | goto fail; | |
434 | ||
435 | switch (s->mode) { | |
a917d384 PB |
436 | case USB_MSDM_DATAOUT: |
437 | if (s->data_len != 0 || len < 13) | |
438 | goto fail; | |
439 | /* Waiting for SCSI write to complete. */ | |
a917d384 PB |
440 | s->packet = p; |
441 | ret = USB_RET_ASYNC; | |
442 | break; | |
443 | ||
2e5d83bb PB |
444 | case USB_MSDM_CSW: |
445 | DPRINTF("Command status %d tag 0x%x, len %d\n", | |
446 | s->result, s->tag, len); | |
447 | if (len < 13) | |
448 | goto fail; | |
449 | ||
ab4797ad | 450 | usb_msd_send_status(s, p); |
2e5d83bb | 451 | s->mode = USB_MSDM_CBW; |
a917d384 | 452 | ret = 13; |
2e5d83bb PB |
453 | break; |
454 | ||
455 | case USB_MSDM_DATAIN: | |
fa7935c1 | 456 | DPRINTF("Data in %d/%d, scsi_len %d\n", len, s->data_len, s->scsi_len); |
2e5d83bb PB |
457 | if (len > s->data_len) |
458 | len = s->data_len; | |
a917d384 PB |
459 | s->usb_buf = data; |
460 | s->usb_len = len; | |
461 | if (s->scsi_len) { | |
462 | usb_msd_copy_data(s); | |
463 | } | |
464 | if (s->residue && s->usb_len) { | |
465 | s->data_len -= s->usb_len; | |
466 | memset(s->usb_buf, 0, s->usb_len); | |
467 | if (s->data_len == 0) | |
468 | s->mode = USB_MSDM_CSW; | |
469 | s->usb_len = 0; | |
470 | } | |
471 | if (s->usb_len) { | |
4d611c9a | 472 | DPRINTF("Deferring packet %p\n", p); |
4d611c9a PB |
473 | s->packet = p; |
474 | ret = USB_RET_ASYNC; | |
a917d384 PB |
475 | } else { |
476 | ret = len; | |
4d611c9a | 477 | } |
2e5d83bb PB |
478 | break; |
479 | ||
480 | default: | |
481 | DPRINTF("Unexpected read (len %d)\n", len); | |
482 | goto fail; | |
483 | } | |
484 | break; | |
485 | ||
486 | default: | |
487 | DPRINTF("Bad token\n"); | |
488 | fail: | |
489 | ret = USB_RET_STALL; | |
490 | break; | |
491 | } | |
492 | ||
493 | return ret; | |
494 | } | |
495 | ||
b3e461d3 GH |
496 | static void usb_msd_password_cb(void *opaque, int err) |
497 | { | |
498 | MSDState *s = opaque; | |
499 | ||
500 | if (!err) | |
fa19bf83 HG |
501 | err = usb_device_attach(&s->dev); |
502 | ||
503 | if (err) | |
b3e461d3 GH |
504 | qdev_unplug(&s->dev.qdev); |
505 | } | |
506 | ||
cfdc1bb0 | 507 | static const struct SCSIBusOps usb_msd_scsi_ops = { |
c6df7102 | 508 | .transfer_data = usb_msd_transfer_data, |
94d3f98a PB |
509 | .complete = usb_msd_command_complete, |
510 | .cancel = usb_msd_request_cancelled | |
cfdc1bb0 PB |
511 | }; |
512 | ||
806b6024 GH |
513 | static int usb_msd_initfn(USBDevice *dev) |
514 | { | |
515 | MSDState *s = DO_UPCAST(MSDState, dev, dev); | |
f8b6cc00 | 516 | BlockDriverState *bs = s->conf.bs; |
4a1e1bc4 | 517 | DriveInfo *dinfo; |
806b6024 | 518 | |
f8b6cc00 | 519 | if (!bs) { |
1ecda02b | 520 | error_report("usb-msd: drive property not set"); |
7fc2f2c0 GH |
521 | return -1; |
522 | } | |
523 | ||
14bafc54 MA |
524 | /* |
525 | * Hack alert: this pretends to be a block device, but it's really | |
526 | * a SCSI bus that can serve only a single device, which it | |
18846dee MA |
527 | * creates automatically. But first it needs to detach from its |
528 | * blockdev, or else scsi_bus_legacy_add_drive() dies when it | |
529 | * attaches again. | |
14bafc54 MA |
530 | * |
531 | * The hack is probably a bad idea. | |
532 | */ | |
18846dee | 533 | bdrv_detach(bs, &s->dev.qdev); |
f8b6cc00 | 534 | s->conf.bs = NULL; |
14bafc54 | 535 | |
c3a90cb1 MA |
536 | if (!s->serial) { |
537 | /* try to fall back to value set with legacy -drive serial=... */ | |
538 | dinfo = drive_get_by_blockdev(bs); | |
539 | if (*dinfo->serial) { | |
540 | s->serial = strdup(dinfo->serial); | |
541 | } | |
542 | } | |
543 | if (s->serial) { | |
544 | usb_desc_set_string(dev, STR_SERIALNUMBER, s->serial); | |
4a1e1bc4 GH |
545 | } |
546 | ||
a980a065 | 547 | usb_desc_init(dev); |
cfdc1bb0 | 548 | scsi_bus_new(&s->bus, &s->dev.qdev, 0, 1, &usb_msd_scsi_ops); |
6bb7b867 | 549 | s->scsi_dev = scsi_bus_legacy_add_drive(&s->bus, bs, 0, !!s->removable); |
fa66b909 MA |
550 | if (!s->scsi_dev) { |
551 | return -1; | |
552 | } | |
cb23117b | 553 | s->bus.qbus.allow_hotplug = 0; |
7fc2f2c0 | 554 | usb_msd_handle_reset(dev); |
b3e461d3 | 555 | |
f8b6cc00 | 556 | if (bdrv_key_required(bs)) { |
a4426488 | 557 | if (cur_mon) { |
f8b6cc00 | 558 | monitor_read_bdrv_key_start(cur_mon, bs, usb_msd_password_cb, s); |
b3e461d3 GH |
559 | s->dev.auto_attach = 0; |
560 | } else { | |
561 | autostart = 0; | |
562 | } | |
563 | } | |
564 | ||
cf8ce30d | 565 | add_boot_device_path(s->conf.bootindex, &dev->qdev, "/disk@0,0"); |
806b6024 GH |
566 | return 0; |
567 | } | |
568 | ||
b3e461d3 | 569 | static USBDevice *usb_msd_init(const char *filename) |
2e5d83bb | 570 | { |
7fc2f2c0 GH |
571 | static int nr=0; |
572 | char id[8]; | |
573 | QemuOpts *opts; | |
574 | DriveInfo *dinfo; | |
806b6024 | 575 | USBDevice *dev; |
334c0241 AJ |
576 | const char *p1; |
577 | char fmt[32]; | |
578 | ||
7fc2f2c0 GH |
579 | /* parse -usbdevice disk: syntax into drive opts */ |
580 | snprintf(id, sizeof(id), "usb%d", nr++); | |
3329f07b | 581 | opts = qemu_opts_create(qemu_find_opts("drive"), id, 0); |
7fc2f2c0 | 582 | |
334c0241 AJ |
583 | p1 = strchr(filename, ':'); |
584 | if (p1++) { | |
585 | const char *p2; | |
586 | ||
587 | if (strstart(filename, "format=", &p2)) { | |
588 | int len = MIN(p1 - p2, sizeof(fmt)); | |
589 | pstrcpy(fmt, len, p2); | |
7fc2f2c0 | 590 | qemu_opt_set(opts, "format", fmt); |
334c0241 AJ |
591 | } else if (*filename != ':') { |
592 | printf("unrecognized USB mass-storage option %s\n", filename); | |
593 | return NULL; | |
594 | } | |
334c0241 AJ |
595 | filename = p1; |
596 | } | |
334c0241 AJ |
597 | if (!*filename) { |
598 | printf("block device specification needed\n"); | |
599 | return NULL; | |
600 | } | |
7fc2f2c0 GH |
601 | qemu_opt_set(opts, "file", filename); |
602 | qemu_opt_set(opts, "if", "none"); | |
2e5d83bb | 603 | |
7fc2f2c0 | 604 | /* create host drive */ |
319ae529 | 605 | dinfo = drive_init(opts, 0); |
7fc2f2c0 GH |
606 | if (!dinfo) { |
607 | qemu_opts_del(opts); | |
806b6024 | 608 | return NULL; |
7fc2f2c0 | 609 | } |
2e5d83bb | 610 | |
7fc2f2c0 | 611 | /* create guest device */ |
556cd098 | 612 | dev = usb_create(NULL /* FIXME */, "usb-storage"); |
d44168ff PB |
613 | if (!dev) { |
614 | return NULL; | |
615 | } | |
18846dee MA |
616 | if (qdev_prop_set_drive(&dev->qdev, "drive", dinfo->bdrv) < 0) { |
617 | qdev_free(&dev->qdev); | |
618 | return NULL; | |
619 | } | |
33e66b86 MA |
620 | if (qdev_init(&dev->qdev) < 0) |
621 | return NULL; | |
1f6e24e7 | 622 | |
7fc2f2c0 | 623 | return dev; |
2e5d83bb | 624 | } |
bb5fc20f | 625 | |
806b6024 | 626 | static struct USBDeviceInfo msd_info = { |
06384698 | 627 | .product_desc = "QEMU USB MSD", |
556cd098 | 628 | .qdev.name = "usb-storage", |
cf8ce30d | 629 | .qdev.fw_name = "storage", |
806b6024 | 630 | .qdev.size = sizeof(MSDState), |
81bfd2f2 | 631 | .usb_desc = &desc, |
806b6024 GH |
632 | .init = usb_msd_initfn, |
633 | .handle_packet = usb_generic_handle_packet, | |
eb5e680a | 634 | .cancel_packet = usb_msd_cancel_io, |
ca0c730d | 635 | .handle_attach = usb_desc_attach, |
806b6024 GH |
636 | .handle_reset = usb_msd_handle_reset, |
637 | .handle_control = usb_msd_handle_control, | |
638 | .handle_data = usb_msd_handle_data, | |
b3e461d3 GH |
639 | .usbdevice_name = "disk", |
640 | .usbdevice_init = usb_msd_init, | |
7fc2f2c0 | 641 | .qdev.props = (Property[]) { |
428c149b | 642 | DEFINE_BLOCK_PROPERTIES(MSDState, conf), |
c3a90cb1 | 643 | DEFINE_PROP_STRING("serial", MSDState, serial), |
6bb7b867 | 644 | DEFINE_PROP_BIT("removable", MSDState, removable, 0, false), |
7fc2f2c0 GH |
645 | DEFINE_PROP_END_OF_LIST(), |
646 | }, | |
806b6024 GH |
647 | }; |
648 | ||
649 | static void usb_msd_register_devices(void) | |
650 | { | |
651 | usb_qdev_register(&msd_info); | |
652 | } | |
653 | device_init(usb_msd_register_devices) |