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