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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; |
ca9c39fa | 51 | SCSIBus bus; |
428c149b | 52 | BlockConf conf; |
2e5d83bb | 53 | SCSIDevice *scsi_dev; |
6bb7b867 | 54 | uint32_t removable; |
2e5d83bb | 55 | int result; |
4d611c9a PB |
56 | /* For async completion. */ |
57 | USBPacket *packet; | |
2e5d83bb PB |
58 | } MSDState; |
59 | ||
a917d384 PB |
60 | struct usb_msd_cbw { |
61 | uint32_t sig; | |
62 | uint32_t tag; | |
63 | uint32_t data_len; | |
64 | uint8_t flags; | |
65 | uint8_t lun; | |
66 | uint8_t cmd_len; | |
67 | uint8_t cmd[16]; | |
68 | }; | |
69 | ||
70 | struct usb_msd_csw { | |
71 | uint32_t sig; | |
72 | uint32_t tag; | |
73 | uint32_t residue; | |
74 | uint8_t status; | |
75 | }; | |
76 | ||
81bfd2f2 GH |
77 | enum { |
78 | STR_MANUFACTURER = 1, | |
79 | STR_PRODUCT, | |
80 | STR_SERIALNUMBER, | |
ca0c730d GH |
81 | STR_CONFIG_FULL, |
82 | STR_CONFIG_HIGH, | |
2e5d83bb PB |
83 | }; |
84 | ||
81bfd2f2 GH |
85 | static const USBDescStrings desc_strings = { |
86 | [STR_MANUFACTURER] = "QEMU " QEMU_VERSION, | |
87 | [STR_PRODUCT] = "QEMU USB HARDDRIVE", | |
88 | [STR_SERIALNUMBER] = "1", | |
ca0c730d GH |
89 | [STR_CONFIG_FULL] = "Full speed config (usb 1.1)", |
90 | [STR_CONFIG_HIGH] = "High speed config (usb 2.0)", | |
81bfd2f2 GH |
91 | }; |
92 | ||
ca0c730d | 93 | static const USBDescIface desc_iface_full = { |
81bfd2f2 GH |
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 | ||
ca0c730d GH |
112 | static const USBDescDevice desc_device_full = { |
113 | .bcdUSB = 0x0200, | |
81bfd2f2 GH |
114 | .bMaxPacketSize0 = 8, |
115 | .bNumConfigurations = 1, | |
116 | .confs = (USBDescConfig[]) { | |
117 | { | |
118 | .bNumInterfaces = 1, | |
119 | .bConfigurationValue = 1, | |
ca0c730d | 120 | .iConfiguration = STR_CONFIG_FULL, |
81bfd2f2 | 121 | .bmAttributes = 0xc0, |
add75088 | 122 | .nif = 1, |
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, | |
add75088 | 157 | .nif = 1, |
ca0c730d | 158 | .ifs = &desc_iface_high, |
81bfd2f2 GH |
159 | }, |
160 | }, | |
161 | }; | |
162 | ||
163 | static const USBDesc desc = { | |
164 | .id = { | |
165 | .idVendor = 0, | |
166 | .idProduct = 0, | |
167 | .bcdDevice = 0, | |
168 | .iManufacturer = STR_MANUFACTURER, | |
169 | .iProduct = STR_PRODUCT, | |
170 | .iSerialNumber = STR_SERIALNUMBER, | |
171 | }, | |
ca0c730d GH |
172 | .full = &desc_device_full, |
173 | .high = &desc_device_high, | |
81bfd2f2 | 174 | .str = desc_strings, |
2e5d83bb PB |
175 | }; |
176 | ||
a917d384 PB |
177 | static void usb_msd_copy_data(MSDState *s) |
178 | { | |
179 | uint32_t len; | |
180 | len = s->usb_len; | |
181 | if (len > s->scsi_len) | |
182 | len = s->scsi_len; | |
183 | if (s->mode == USB_MSDM_DATAIN) { | |
184 | memcpy(s->usb_buf, s->scsi_buf, len); | |
185 | } else { | |
186 | memcpy(s->scsi_buf, s->usb_buf, len); | |
187 | } | |
188 | s->usb_len -= len; | |
189 | s->scsi_len -= len; | |
190 | s->usb_buf += len; | |
191 | s->scsi_buf += len; | |
192 | s->data_len -= len; | |
fa7935c1 | 193 | if (s->scsi_len == 0 || s->data_len == 0) { |
a917d384 | 194 | if (s->mode == USB_MSDM_DATAIN) { |
d52affa7 | 195 | s->scsi_dev->info->read_data(s->scsi_dev, s->tag); |
a917d384 | 196 | } else if (s->mode == USB_MSDM_DATAOUT) { |
d52affa7 | 197 | s->scsi_dev->info->write_data(s->scsi_dev, s->tag); |
a917d384 PB |
198 | } |
199 | } | |
200 | } | |
201 | ||
ab4797ad | 202 | static void usb_msd_send_status(MSDState *s, USBPacket *p) |
a917d384 PB |
203 | { |
204 | struct usb_msd_csw csw; | |
ab4797ad | 205 | int len; |
a917d384 PB |
206 | |
207 | csw.sig = cpu_to_le32(0x53425355); | |
208 | csw.tag = cpu_to_le32(s->tag); | |
209 | csw.residue = s->residue; | |
210 | csw.status = s->result; | |
ab4797ad GH |
211 | |
212 | len = MIN(sizeof(csw), p->len); | |
213 | memcpy(p->data, &csw, len); | |
a917d384 PB |
214 | } |
215 | ||
d52affa7 | 216 | static void usb_msd_command_complete(SCSIBus *bus, int reason, uint32_t tag, |
a917d384 | 217 | uint32_t arg) |
2e5d83bb | 218 | { |
d52affa7 | 219 | MSDState *s = DO_UPCAST(MSDState, dev.qdev, bus->qbus.parent); |
a917d384 | 220 | USBPacket *p = s->packet; |
4d611c9a | 221 | |
a917d384 PB |
222 | if (tag != s->tag) { |
223 | fprintf(stderr, "usb-msd: Unexpected SCSI Tag 0x%x\n", tag); | |
224 | } | |
4d611c9a | 225 | if (reason == SCSI_REASON_DONE) { |
a917d384 PB |
226 | DPRINTF("Command complete %d\n", arg); |
227 | s->residue = s->data_len; | |
228 | s->result = arg != 0; | |
229 | if (s->packet) { | |
230 | if (s->data_len == 0 && s->mode == USB_MSDM_DATAOUT) { | |
231 | /* A deferred packet with no write data remaining must be | |
232 | the status read packet. */ | |
ab4797ad | 233 | usb_msd_send_status(s, p); |
a917d384 PB |
234 | s->mode = USB_MSDM_CBW; |
235 | } else { | |
236 | if (s->data_len) { | |
237 | s->data_len -= s->usb_len; | |
238 | if (s->mode == USB_MSDM_DATAIN) | |
239 | memset(s->usb_buf, 0, s->usb_len); | |
240 | s->usb_len = 0; | |
241 | } | |
242 | if (s->data_len == 0) | |
243 | s->mode = USB_MSDM_CSW; | |
244 | } | |
245 | s->packet = NULL; | |
13a9a0d3 | 246 | usb_packet_complete(&s->dev, p); |
a917d384 PB |
247 | } else if (s->data_len == 0) { |
248 | s->mode = USB_MSDM_CSW; | |
249 | } | |
250 | return; | |
4d611c9a | 251 | } |
a917d384 | 252 | s->scsi_len = arg; |
d52affa7 | 253 | s->scsi_buf = s->scsi_dev->info->get_buf(s->scsi_dev, tag); |
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 | ||
059809e4 | 267 | static void usb_msd_handle_reset(USBDevice *dev) |
2e5d83bb PB |
268 | { |
269 | MSDState *s = (MSDState *)dev; | |
270 | ||
271 | DPRINTF("Reset\n"); | |
272 | s->mode = USB_MSDM_CBW; | |
2e5d83bb PB |
273 | } |
274 | ||
007fd62f HG |
275 | static int usb_msd_handle_control(USBDevice *dev, USBPacket *p, |
276 | int request, int value, int index, int length, uint8_t *data) | |
2e5d83bb PB |
277 | { |
278 | MSDState *s = (MSDState *)dev; | |
81bfd2f2 | 279 | int ret; |
2e5d83bb | 280 | |
007fd62f | 281 | ret = usb_desc_handle_control(dev, p, request, value, index, length, data); |
81bfd2f2 GH |
282 | if (ret >= 0) { |
283 | return ret; | |
284 | } | |
285 | ||
286 | ret = 0; | |
2e5d83bb | 287 | switch (request) { |
2e5d83bb PB |
288 | case DeviceRequest | USB_REQ_GET_INTERFACE: |
289 | data[0] = 0; | |
290 | ret = 1; | |
291 | break; | |
292 | case DeviceOutRequest | USB_REQ_SET_INTERFACE: | |
293 | ret = 0; | |
294 | break; | |
295 | case EndpointOutRequest | USB_REQ_CLEAR_FEATURE: | |
e5322f76 APR |
296 | ret = 0; |
297 | break; | |
298 | case InterfaceOutRequest | USB_REQ_SET_INTERFACE: | |
2e5d83bb PB |
299 | ret = 0; |
300 | break; | |
301 | /* Class specific requests. */ | |
f3571b1a | 302 | case ClassInterfaceOutRequest | MassStorageReset: |
2e5d83bb PB |
303 | /* Reset state ready for the next CBW. */ |
304 | s->mode = USB_MSDM_CBW; | |
305 | ret = 0; | |
306 | break; | |
f3571b1a | 307 | case ClassInterfaceRequest | GetMaxLun: |
2e5d83bb PB |
308 | data[0] = 0; |
309 | ret = 1; | |
310 | break; | |
311 | default: | |
2e5d83bb PB |
312 | ret = USB_RET_STALL; |
313 | break; | |
314 | } | |
315 | return ret; | |
316 | } | |
317 | ||
4d611c9a PB |
318 | static void usb_msd_cancel_io(USBPacket *p, void *opaque) |
319 | { | |
320 | MSDState *s = opaque; | |
d52affa7 | 321 | s->scsi_dev->info->cancel_io(s->scsi_dev, s->tag); |
4d611c9a | 322 | s->packet = NULL; |
a917d384 | 323 | s->scsi_len = 0; |
4d611c9a PB |
324 | } |
325 | ||
326 | static int usb_msd_handle_data(USBDevice *dev, USBPacket *p) | |
2e5d83bb PB |
327 | { |
328 | MSDState *s = (MSDState *)dev; | |
329 | int ret = 0; | |
330 | struct usb_msd_cbw cbw; | |
4d611c9a PB |
331 | uint8_t devep = p->devep; |
332 | uint8_t *data = p->data; | |
333 | int len = p->len; | |
2e5d83bb | 334 | |
4d611c9a | 335 | switch (p->pid) { |
2e5d83bb PB |
336 | case USB_TOKEN_OUT: |
337 | if (devep != 2) | |
338 | goto fail; | |
339 | ||
340 | switch (s->mode) { | |
341 | case USB_MSDM_CBW: | |
342 | if (len != 31) { | |
343 | fprintf(stderr, "usb-msd: Bad CBW size"); | |
344 | goto fail; | |
345 | } | |
346 | memcpy(&cbw, data, 31); | |
347 | if (le32_to_cpu(cbw.sig) != 0x43425355) { | |
348 | fprintf(stderr, "usb-msd: Bad signature %08x\n", | |
349 | le32_to_cpu(cbw.sig)); | |
350 | goto fail; | |
351 | } | |
352 | DPRINTF("Command on LUN %d\n", cbw.lun); | |
353 | if (cbw.lun != 0) { | |
354 | fprintf(stderr, "usb-msd: Bad LUN %d\n", cbw.lun); | |
355 | goto fail; | |
356 | } | |
357 | s->tag = le32_to_cpu(cbw.tag); | |
358 | s->data_len = le32_to_cpu(cbw.data_len); | |
359 | if (s->data_len == 0) { | |
360 | s->mode = USB_MSDM_CSW; | |
361 | } else if (cbw.flags & 0x80) { | |
362 | s->mode = USB_MSDM_DATAIN; | |
363 | } else { | |
364 | s->mode = USB_MSDM_DATAOUT; | |
365 | } | |
366 | DPRINTF("Command tag 0x%x flags %08x len %d data %d\n", | |
367 | s->tag, cbw.flags, cbw.cmd_len, s->data_len); | |
a917d384 | 368 | s->residue = 0; |
ef0bdf77 | 369 | s->scsi_len = 0; |
d52affa7 | 370 | s->scsi_dev->info->send_command(s->scsi_dev, s->tag, cbw.cmd, 0); |
a917d384 PB |
371 | /* ??? Should check that USB and SCSI data transfer |
372 | directions match. */ | |
373 | if (s->residue == 0) { | |
374 | if (s->mode == USB_MSDM_DATAIN) { | |
d52affa7 | 375 | s->scsi_dev->info->read_data(s->scsi_dev, s->tag); |
a917d384 | 376 | } else if (s->mode == USB_MSDM_DATAOUT) { |
d52affa7 | 377 | s->scsi_dev->info->write_data(s->scsi_dev, s->tag); |
a917d384 PB |
378 | } |
379 | } | |
2e5d83bb PB |
380 | ret = len; |
381 | break; | |
382 | ||
383 | case USB_MSDM_DATAOUT: | |
384 | DPRINTF("Data out %d/%d\n", len, s->data_len); | |
385 | if (len > s->data_len) | |
386 | goto fail; | |
387 | ||
a917d384 PB |
388 | s->usb_buf = data; |
389 | s->usb_len = len; | |
390 | if (s->scsi_len) { | |
391 | usb_msd_copy_data(s); | |
392 | } | |
393 | if (s->residue && s->usb_len) { | |
394 | s->data_len -= s->usb_len; | |
395 | if (s->data_len == 0) | |
396 | s->mode = USB_MSDM_CSW; | |
397 | s->usb_len = 0; | |
398 | } | |
399 | if (s->usb_len) { | |
4d611c9a PB |
400 | DPRINTF("Deferring packet %p\n", p); |
401 | usb_defer_packet(p, usb_msd_cancel_io, s); | |
402 | s->packet = p; | |
403 | ret = USB_RET_ASYNC; | |
a917d384 PB |
404 | } else { |
405 | ret = len; | |
4d611c9a | 406 | } |
2e5d83bb PB |
407 | break; |
408 | ||
409 | default: | |
410 | DPRINTF("Unexpected write (len %d)\n", len); | |
411 | goto fail; | |
412 | } | |
413 | break; | |
414 | ||
415 | case USB_TOKEN_IN: | |
416 | if (devep != 1) | |
417 | goto fail; | |
418 | ||
419 | switch (s->mode) { | |
a917d384 PB |
420 | case USB_MSDM_DATAOUT: |
421 | if (s->data_len != 0 || len < 13) | |
422 | goto fail; | |
423 | /* Waiting for SCSI write to complete. */ | |
424 | usb_defer_packet(p, usb_msd_cancel_io, s); | |
425 | s->packet = p; | |
426 | ret = USB_RET_ASYNC; | |
427 | break; | |
428 | ||
2e5d83bb PB |
429 | case USB_MSDM_CSW: |
430 | DPRINTF("Command status %d tag 0x%x, len %d\n", | |
431 | s->result, s->tag, len); | |
432 | if (len < 13) | |
433 | goto fail; | |
434 | ||
ab4797ad | 435 | usb_msd_send_status(s, p); |
2e5d83bb | 436 | s->mode = USB_MSDM_CBW; |
a917d384 | 437 | ret = 13; |
2e5d83bb PB |
438 | break; |
439 | ||
440 | case USB_MSDM_DATAIN: | |
fa7935c1 | 441 | DPRINTF("Data in %d/%d, scsi_len %d\n", len, s->data_len, s->scsi_len); |
2e5d83bb PB |
442 | if (len > s->data_len) |
443 | len = s->data_len; | |
a917d384 PB |
444 | s->usb_buf = data; |
445 | s->usb_len = len; | |
446 | if (s->scsi_len) { | |
447 | usb_msd_copy_data(s); | |
448 | } | |
449 | if (s->residue && s->usb_len) { | |
450 | s->data_len -= s->usb_len; | |
451 | memset(s->usb_buf, 0, s->usb_len); | |
452 | if (s->data_len == 0) | |
453 | s->mode = USB_MSDM_CSW; | |
454 | s->usb_len = 0; | |
455 | } | |
456 | if (s->usb_len) { | |
4d611c9a PB |
457 | DPRINTF("Deferring packet %p\n", p); |
458 | usb_defer_packet(p, usb_msd_cancel_io, s); | |
459 | s->packet = p; | |
460 | ret = USB_RET_ASYNC; | |
a917d384 PB |
461 | } else { |
462 | ret = len; | |
4d611c9a | 463 | } |
2e5d83bb PB |
464 | break; |
465 | ||
466 | default: | |
467 | DPRINTF("Unexpected read (len %d)\n", len); | |
468 | goto fail; | |
469 | } | |
470 | break; | |
471 | ||
472 | default: | |
473 | DPRINTF("Bad token\n"); | |
474 | fail: | |
475 | ret = USB_RET_STALL; | |
476 | break; | |
477 | } | |
478 | ||
479 | return ret; | |
480 | } | |
481 | ||
b3e461d3 GH |
482 | static void usb_msd_password_cb(void *opaque, int err) |
483 | { | |
484 | MSDState *s = opaque; | |
485 | ||
486 | if (!err) | |
487 | usb_device_attach(&s->dev); | |
488 | else | |
489 | qdev_unplug(&s->dev.qdev); | |
490 | } | |
491 | ||
806b6024 GH |
492 | static int usb_msd_initfn(USBDevice *dev) |
493 | { | |
494 | MSDState *s = DO_UPCAST(MSDState, dev, dev); | |
f8b6cc00 | 495 | BlockDriverState *bs = s->conf.bs; |
4a1e1bc4 | 496 | DriveInfo *dinfo; |
806b6024 | 497 | |
f8b6cc00 | 498 | if (!bs) { |
1ecda02b | 499 | error_report("usb-msd: drive property not set"); |
7fc2f2c0 GH |
500 | return -1; |
501 | } | |
502 | ||
14bafc54 MA |
503 | /* |
504 | * Hack alert: this pretends to be a block device, but it's really | |
505 | * a SCSI bus that can serve only a single device, which it | |
18846dee MA |
506 | * creates automatically. But first it needs to detach from its |
507 | * blockdev, or else scsi_bus_legacy_add_drive() dies when it | |
508 | * attaches again. | |
14bafc54 MA |
509 | * |
510 | * The hack is probably a bad idea. | |
511 | */ | |
18846dee | 512 | bdrv_detach(bs, &s->dev.qdev); |
f8b6cc00 | 513 | s->conf.bs = NULL; |
14bafc54 | 514 | |
4a1e1bc4 GH |
515 | dinfo = drive_get_by_blockdev(bs); |
516 | if (dinfo && dinfo->serial) { | |
517 | usb_desc_set_string(dev, STR_SERIALNUMBER, dinfo->serial); | |
518 | } | |
519 | ||
a980a065 | 520 | usb_desc_init(dev); |
ca9c39fa | 521 | scsi_bus_new(&s->bus, &s->dev.qdev, 0, 1, usb_msd_command_complete); |
6bb7b867 | 522 | s->scsi_dev = scsi_bus_legacy_add_drive(&s->bus, bs, 0, !!s->removable); |
fa66b909 MA |
523 | if (!s->scsi_dev) { |
524 | return -1; | |
525 | } | |
cb23117b | 526 | s->bus.qbus.allow_hotplug = 0; |
7fc2f2c0 | 527 | usb_msd_handle_reset(dev); |
b3e461d3 | 528 | |
f8b6cc00 | 529 | if (bdrv_key_required(bs)) { |
a4426488 | 530 | if (cur_mon) { |
f8b6cc00 | 531 | monitor_read_bdrv_key_start(cur_mon, bs, usb_msd_password_cb, s); |
b3e461d3 GH |
532 | s->dev.auto_attach = 0; |
533 | } else { | |
534 | autostart = 0; | |
535 | } | |
536 | } | |
537 | ||
cf8ce30d | 538 | add_boot_device_path(s->conf.bootindex, &dev->qdev, "/disk@0,0"); |
806b6024 GH |
539 | return 0; |
540 | } | |
541 | ||
b3e461d3 | 542 | static USBDevice *usb_msd_init(const char *filename) |
2e5d83bb | 543 | { |
7fc2f2c0 GH |
544 | static int nr=0; |
545 | char id[8]; | |
546 | QemuOpts *opts; | |
547 | DriveInfo *dinfo; | |
806b6024 | 548 | USBDevice *dev; |
334c0241 AJ |
549 | const char *p1; |
550 | char fmt[32]; | |
551 | ||
7fc2f2c0 GH |
552 | /* parse -usbdevice disk: syntax into drive opts */ |
553 | snprintf(id, sizeof(id), "usb%d", nr++); | |
3329f07b | 554 | opts = qemu_opts_create(qemu_find_opts("drive"), id, 0); |
7fc2f2c0 | 555 | |
334c0241 AJ |
556 | p1 = strchr(filename, ':'); |
557 | if (p1++) { | |
558 | const char *p2; | |
559 | ||
560 | if (strstart(filename, "format=", &p2)) { | |
561 | int len = MIN(p1 - p2, sizeof(fmt)); | |
562 | pstrcpy(fmt, len, p2); | |
7fc2f2c0 | 563 | qemu_opt_set(opts, "format", fmt); |
334c0241 AJ |
564 | } else if (*filename != ':') { |
565 | printf("unrecognized USB mass-storage option %s\n", filename); | |
566 | return NULL; | |
567 | } | |
334c0241 AJ |
568 | filename = p1; |
569 | } | |
334c0241 AJ |
570 | if (!*filename) { |
571 | printf("block device specification needed\n"); | |
572 | return NULL; | |
573 | } | |
7fc2f2c0 GH |
574 | qemu_opt_set(opts, "file", filename); |
575 | qemu_opt_set(opts, "if", "none"); | |
2e5d83bb | 576 | |
7fc2f2c0 | 577 | /* create host drive */ |
319ae529 | 578 | dinfo = drive_init(opts, 0); |
7fc2f2c0 GH |
579 | if (!dinfo) { |
580 | qemu_opts_del(opts); | |
806b6024 | 581 | return NULL; |
7fc2f2c0 | 582 | } |
2e5d83bb | 583 | |
7fc2f2c0 | 584 | /* create guest device */ |
556cd098 | 585 | dev = usb_create(NULL /* FIXME */, "usb-storage"); |
d44168ff PB |
586 | if (!dev) { |
587 | return NULL; | |
588 | } | |
18846dee MA |
589 | if (qdev_prop_set_drive(&dev->qdev, "drive", dinfo->bdrv) < 0) { |
590 | qdev_free(&dev->qdev); | |
591 | return NULL; | |
592 | } | |
33e66b86 MA |
593 | if (qdev_init(&dev->qdev) < 0) |
594 | return NULL; | |
1f6e24e7 | 595 | |
7fc2f2c0 | 596 | return dev; |
2e5d83bb | 597 | } |
bb5fc20f | 598 | |
806b6024 | 599 | static struct USBDeviceInfo msd_info = { |
06384698 | 600 | .product_desc = "QEMU USB MSD", |
556cd098 | 601 | .qdev.name = "usb-storage", |
cf8ce30d | 602 | .qdev.fw_name = "storage", |
806b6024 | 603 | .qdev.size = sizeof(MSDState), |
81bfd2f2 | 604 | .usb_desc = &desc, |
806b6024 GH |
605 | .init = usb_msd_initfn, |
606 | .handle_packet = usb_generic_handle_packet, | |
ca0c730d | 607 | .handle_attach = usb_desc_attach, |
806b6024 GH |
608 | .handle_reset = usb_msd_handle_reset, |
609 | .handle_control = usb_msd_handle_control, | |
610 | .handle_data = usb_msd_handle_data, | |
b3e461d3 GH |
611 | .usbdevice_name = "disk", |
612 | .usbdevice_init = usb_msd_init, | |
7fc2f2c0 | 613 | .qdev.props = (Property[]) { |
428c149b | 614 | DEFINE_BLOCK_PROPERTIES(MSDState, conf), |
6bb7b867 | 615 | DEFINE_PROP_BIT("removable", MSDState, removable, 0, false), |
7fc2f2c0 GH |
616 | DEFINE_PROP_END_OF_LIST(), |
617 | }, | |
806b6024 GH |
618 | }; |
619 | ||
620 | static void usb_msd_register_devices(void) | |
621 | { | |
622 | usb_qdev_register(&msd_info); | |
623 | } | |
624 | device_init(usb_msd_register_devices) |