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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 | * | |
8e31bf38 | 7 | * This code is licensed under the LGPL. |
2e5d83bb PB |
8 | */ |
9 | ||
87ecb68b | 10 | #include "qemu-common.h" |
1de7afc9 PB |
11 | #include "qemu/option.h" |
12 | #include "qemu/config-file.h" | |
f1ae32a1 GH |
13 | #include "hw/usb.h" |
14 | #include "hw/usb/desc.h" | |
15 | #include "hw/scsi.h" | |
28ecbaee | 16 | #include "ui/console.h" |
83c9089e | 17 | #include "monitor/monitor.h" |
9c17d615 PB |
18 | #include "sysemu/sysemu.h" |
19 | #include "sysemu/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 | ||
92a114f6 GH |
41 | struct usb_msd_csw { |
42 | uint32_t sig; | |
43 | uint32_t tag; | |
44 | uint32_t residue; | |
45 | uint8_t status; | |
46 | }; | |
47 | ||
2e5d83bb PB |
48 | typedef struct { |
49 | USBDevice dev; | |
50 | enum USBMSDMode mode; | |
1dc90367 | 51 | uint32_t scsi_off; |
a917d384 | 52 | uint32_t scsi_len; |
2e5d83bb | 53 | uint32_t data_len; |
92a114f6 | 54 | struct usb_msd_csw csw; |
5c6c0e51 | 55 | SCSIRequest *req; |
ca9c39fa | 56 | SCSIBus bus; |
34707333 GH |
57 | /* For async completion. */ |
58 | USBPacket *packet; | |
59 | /* usb-storage only */ | |
428c149b | 60 | BlockConf conf; |
c3a90cb1 | 61 | char *serial; |
6bb7b867 | 62 | uint32_t removable; |
2e5d83bb PB |
63 | } MSDState; |
64 | ||
a917d384 PB |
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 | ||
81bfd2f2 GH |
75 | enum { |
76 | STR_MANUFACTURER = 1, | |
77 | STR_PRODUCT, | |
78 | STR_SERIALNUMBER, | |
ca0c730d GH |
79 | STR_CONFIG_FULL, |
80 | STR_CONFIG_HIGH, | |
79b40459 | 81 | STR_CONFIG_SUPER, |
2e5d83bb PB |
82 | }; |
83 | ||
81bfd2f2 | 84 | static const USBDescStrings desc_strings = { |
93bfef4c | 85 | [STR_MANUFACTURER] = "QEMU", |
81bfd2f2 GH |
86 | [STR_PRODUCT] = "QEMU USB HARDDRIVE", |
87 | [STR_SERIALNUMBER] = "1", | |
ca0c730d GH |
88 | [STR_CONFIG_FULL] = "Full speed config (usb 1.1)", |
89 | [STR_CONFIG_HIGH] = "High speed config (usb 2.0)", | |
79b40459 | 90 | [STR_CONFIG_SUPER] = "Super speed config (usb 3.0)", |
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 | ||
79b40459 GH |
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 | ||
81bfd2f2 GH |
200 | static const USBDesc desc = { |
201 | .id = { | |
db80358a RT |
202 | .idVendor = 0x46f4, /* CRC16() of "QEMU" */ |
203 | .idProduct = 0x0001, | |
81bfd2f2 GH |
204 | .bcdDevice = 0, |
205 | .iManufacturer = STR_MANUFACTURER, | |
206 | .iProduct = STR_PRODUCT, | |
207 | .iSerialNumber = STR_SERIALNUMBER, | |
208 | }, | |
79b40459 GH |
209 | .full = &desc_device_full, |
210 | .high = &desc_device_high, | |
211 | .super = &desc_device_super, | |
212 | .str = desc_strings, | |
2e5d83bb PB |
213 | }; |
214 | ||
29c74f76 | 215 | static void usb_msd_copy_data(MSDState *s, USBPacket *p) |
a917d384 PB |
216 | { |
217 | uint32_t len; | |
9a77a0f5 | 218 | len = p->iov.size - p->actual_length; |
a917d384 PB |
219 | if (len > s->scsi_len) |
220 | len = s->scsi_len; | |
1dc90367 | 221 | usb_packet_copy(p, scsi_req_get_buf(s->req) + s->scsi_off, len); |
a917d384 | 222 | s->scsi_len -= len; |
1dc90367 | 223 | s->scsi_off += len; |
a917d384 | 224 | s->data_len -= len; |
fa7935c1 | 225 | if (s->scsi_len == 0 || s->data_len == 0) { |
ad3376cc | 226 | scsi_req_continue(s->req); |
a917d384 PB |
227 | } |
228 | } | |
229 | ||
ab4797ad | 230 | static void usb_msd_send_status(MSDState *s, USBPacket *p) |
a917d384 | 231 | { |
ab4797ad | 232 | int len; |
a917d384 | 233 | |
e04da7c3 | 234 | DPRINTF("Command status %d tag 0x%x, len %zd\n", |
e2854bf3 | 235 | s->csw.status, le32_to_cpu(s->csw.tag), p->iov.size); |
92a114f6 | 236 | |
e2854bf3 | 237 | assert(s->csw.sig == cpu_to_le32(0x53425355)); |
92a114f6 GH |
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)); | |
a917d384 PB |
241 | } |
242 | ||
1e6ed80b GH |
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 | ||
aba1f023 | 255 | static void usb_msd_transfer_data(SCSIRequest *req, uint32_t len) |
2e5d83bb | 256 | { |
5c6c0e51 | 257 | MSDState *s = DO_UPCAST(MSDState, dev.qdev, req->bus->qbus.parent); |
a917d384 | 258 | USBPacket *p = s->packet; |
4d611c9a | 259 | |
ad3376cc | 260 | assert((s->mode == USB_MSDM_DATAOUT) == (req->cmd.mode == SCSI_XFER_TO_DEV)); |
aba1f023 | 261 | s->scsi_len = len; |
1dc90367 | 262 | s->scsi_off = 0; |
a917d384 | 263 | if (p) { |
29c74f76 GH |
264 | usb_msd_copy_data(s, p); |
265 | p = s->packet; | |
9a77a0f5 HG |
266 | if (p && p->actual_length == p->iov.size) { |
267 | p->status = USB_RET_SUCCESS; /* Clear previous ASYNC status */ | |
1e6ed80b | 268 | usb_msd_packet_complete(s); |
a917d384 | 269 | } |
4d611c9a | 270 | } |
2e5d83bb PB |
271 | } |
272 | ||
01e95455 | 273 | static void usb_msd_command_complete(SCSIRequest *req, uint32_t status, size_t resid) |
c6df7102 PB |
274 | { |
275 | MSDState *s = DO_UPCAST(MSDState, dev.qdev, req->bus->qbus.parent); | |
276 | USBPacket *p = s->packet; | |
277 | ||
7b863f41 | 278 | DPRINTF("Command complete %d tag 0x%x\n", status, req->tag); |
92a114f6 GH |
279 | |
280 | s->csw.sig = cpu_to_le32(0x53425355); | |
7b863f41 | 281 | s->csw.tag = cpu_to_le32(req->tag); |
0659879e | 282 | s->csw.residue = cpu_to_le32(s->data_len); |
414c4604 | 283 | s->csw.status = status != 0; |
92a114f6 | 284 | |
c6df7102 PB |
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; | |
54414218 GH |
291 | } else if (s->mode == USB_MSDM_CSW) { |
292 | usb_msd_send_status(s, p); | |
293 | s->mode = USB_MSDM_CBW; | |
c6df7102 PB |
294 | } else { |
295 | if (s->data_len) { | |
9a77a0f5 | 296 | int len = (p->iov.size - p->actual_length); |
29c74f76 GH |
297 | usb_packet_skip(p, len); |
298 | s->data_len -= len; | |
c6df7102 PB |
299 | } |
300 | if (s->data_len == 0) { | |
301 | s->mode = USB_MSDM_CSW; | |
302 | } | |
303 | } | |
9a77a0f5 | 304 | p->status = USB_RET_SUCCESS; /* Clear previous ASYNC status */ |
1e6ed80b | 305 | usb_msd_packet_complete(s); |
c6df7102 PB |
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 | ||
94d3f98a PB |
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; | |
94d3f98a PB |
320 | s->scsi_len = 0; |
321 | } | |
322 | } | |
323 | ||
059809e4 | 324 | static void usb_msd_handle_reset(USBDevice *dev) |
2e5d83bb PB |
325 | { |
326 | MSDState *s = (MSDState *)dev; | |
327 | ||
328 | DPRINTF("Reset\n"); | |
24a5bbe1 GH |
329 | if (s->req) { |
330 | scsi_req_cancel(s->req); | |
331 | } | |
332 | assert(s->req == NULL); | |
333 | ||
334 | if (s->packet) { | |
9a77a0f5 | 335 | s->packet->status = USB_RET_STALL; |
1e6ed80b | 336 | usb_msd_packet_complete(s); |
24a5bbe1 GH |
337 | } |
338 | ||
2e5d83bb | 339 | s->mode = USB_MSDM_CBW; |
2e5d83bb PB |
340 | } |
341 | ||
9a77a0f5 | 342 | static void usb_msd_handle_control(USBDevice *dev, USBPacket *p, |
007fd62f | 343 | int request, int value, int index, int length, uint8_t *data) |
2e5d83bb PB |
344 | { |
345 | MSDState *s = (MSDState *)dev; | |
34707333 GH |
346 | SCSIDevice *scsi_dev; |
347 | int ret, maxlun; | |
2e5d83bb | 348 | |
007fd62f | 349 | ret = usb_desc_handle_control(dev, p, request, value, index, length, data); |
81bfd2f2 | 350 | if (ret >= 0) { |
9a77a0f5 | 351 | return; |
81bfd2f2 GH |
352 | } |
353 | ||
2e5d83bb | 354 | switch (request) { |
2e5d83bb | 355 | case EndpointOutRequest | USB_REQ_CLEAR_FEATURE: |
e5322f76 | 356 | break; |
2e5d83bb | 357 | /* Class specific requests. */ |
f3571b1a | 358 | case ClassInterfaceOutRequest | MassStorageReset: |
2e5d83bb PB |
359 | /* Reset state ready for the next CBW. */ |
360 | s->mode = USB_MSDM_CBW; | |
2e5d83bb | 361 | break; |
f3571b1a | 362 | case ClassInterfaceRequest | GetMaxLun: |
34707333 GH |
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; | |
9a77a0f5 | 376 | p->actual_length = 1; |
2e5d83bb PB |
377 | break; |
378 | default: | |
9a77a0f5 | 379 | p->status = USB_RET_STALL; |
2e5d83bb PB |
380 | break; |
381 | } | |
2e5d83bb PB |
382 | } |
383 | ||
eb5e680a | 384 | static void usb_msd_cancel_io(USBDevice *dev, USBPacket *p) |
4d611c9a | 385 | { |
eb5e680a | 386 | MSDState *s = DO_UPCAST(MSDState, dev, dev); |
d3ac1a87 | 387 | |
6d7aeeeb GH |
388 | assert(s->packet == p); |
389 | s->packet = NULL; | |
390 | ||
d3ac1a87 GH |
391 | if (s->req) { |
392 | scsi_req_cancel(s->req); | |
393 | } | |
4d611c9a PB |
394 | } |
395 | ||
9a77a0f5 | 396 | static void usb_msd_handle_data(USBDevice *dev, USBPacket *p) |
2e5d83bb PB |
397 | { |
398 | MSDState *s = (MSDState *)dev; | |
7b863f41 | 399 | uint32_t tag; |
2e5d83bb | 400 | struct usb_msd_cbw cbw; |
079d0b7f | 401 | uint8_t devep = p->ep->nr; |
34707333 | 402 | SCSIDevice *scsi_dev; |
2e5d83bb | 403 | |
4d611c9a | 404 | switch (p->pid) { |
2e5d83bb PB |
405 | case USB_TOKEN_OUT: |
406 | if (devep != 2) | |
407 | goto fail; | |
408 | ||
409 | switch (s->mode) { | |
410 | case USB_MSDM_CBW: | |
29c74f76 | 411 | if (p->iov.size != 31) { |
2e5d83bb PB |
412 | fprintf(stderr, "usb-msd: Bad CBW size"); |
413 | goto fail; | |
414 | } | |
29c74f76 | 415 | usb_packet_copy(p, &cbw, 31); |
2e5d83bb PB |
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); | |
34707333 GH |
422 | scsi_dev = scsi_device_find(&s->bus, 0, 0, cbw.lun); |
423 | if (scsi_dev == NULL) { | |
2e5d83bb PB |
424 | fprintf(stderr, "usb-msd: Bad LUN %d\n", cbw.lun); |
425 | goto fail; | |
426 | } | |
7b863f41 | 427 | tag = le32_to_cpu(cbw.tag); |
2e5d83bb PB |
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", | |
7b863f41 | 437 | tag, cbw.flags, cbw.cmd_len, s->data_len); |
0659879e | 438 | assert(le32_to_cpu(s->csw.residue) == 0); |
ef0bdf77 | 439 | s->scsi_len = 0; |
34707333 | 440 | s->req = scsi_req_new(scsi_dev, tag, cbw.lun, cbw.cmd, NULL); |
06f9847d GH |
441 | #ifdef DEBUG_MSD |
442 | scsi_req_print(s->req); | |
443 | #endif | |
c39ce112 | 444 | scsi_req_enqueue(s->req); |
f4c0e501 | 445 | if (s->req && s->req->cmd.xfer != SCSI_XFER_NONE) { |
ad3376cc | 446 | scsi_req_continue(s->req); |
a917d384 | 447 | } |
2e5d83bb PB |
448 | break; |
449 | ||
450 | case USB_MSDM_DATAOUT: | |
29c74f76 GH |
451 | DPRINTF("Data out %zd/%d\n", p->iov.size, s->data_len); |
452 | if (p->iov.size > s->data_len) { | |
2e5d83bb | 453 | goto fail; |
29c74f76 | 454 | } |
2e5d83bb | 455 | |
a917d384 | 456 | if (s->scsi_len) { |
29c74f76 | 457 | usb_msd_copy_data(s, p); |
a917d384 | 458 | } |
0659879e | 459 | if (le32_to_cpu(s->csw.residue)) { |
9a77a0f5 | 460 | int len = p->iov.size - p->actual_length; |
29c74f76 GH |
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 | } | |
a917d384 | 468 | } |
9a77a0f5 | 469 | if (p->actual_length < p->iov.size) { |
06f9847d | 470 | DPRINTF("Deferring packet %p [wait data-out]\n", p); |
4d611c9a | 471 | s->packet = p; |
9a77a0f5 | 472 | p->status = USB_RET_ASYNC; |
4d611c9a | 473 | } |
2e5d83bb PB |
474 | break; |
475 | ||
476 | default: | |
29c74f76 | 477 | DPRINTF("Unexpected write (len %zd)\n", p->iov.size); |
2e5d83bb PB |
478 | goto fail; |
479 | } | |
480 | break; | |
481 | ||
482 | case USB_TOKEN_IN: | |
483 | if (devep != 1) | |
484 | goto fail; | |
485 | ||
486 | switch (s->mode) { | |
a917d384 | 487 | case USB_MSDM_DATAOUT: |
29c74f76 | 488 | if (s->data_len != 0 || p->iov.size < 13) { |
a917d384 | 489 | goto fail; |
29c74f76 | 490 | } |
a917d384 | 491 | /* Waiting for SCSI write to complete. */ |
a917d384 | 492 | s->packet = p; |
9a77a0f5 | 493 | p->status = USB_RET_ASYNC; |
a917d384 PB |
494 | break; |
495 | ||
2e5d83bb | 496 | case USB_MSDM_CSW: |
29c74f76 | 497 | if (p->iov.size < 13) { |
2e5d83bb | 498 | goto fail; |
29c74f76 | 499 | } |
2e5d83bb | 500 | |
59310659 GH |
501 | if (s->req) { |
502 | /* still in flight */ | |
06f9847d | 503 | DPRINTF("Deferring packet %p [wait status]\n", p); |
59310659 | 504 | s->packet = p; |
9a77a0f5 | 505 | p->status = USB_RET_ASYNC; |
59310659 GH |
506 | } else { |
507 | usb_msd_send_status(s, p); | |
508 | s->mode = USB_MSDM_CBW; | |
59310659 | 509 | } |
2e5d83bb PB |
510 | break; |
511 | ||
512 | case USB_MSDM_DATAIN: | |
29c74f76 GH |
513 | DPRINTF("Data in %zd/%d, scsi_len %d\n", |
514 | p->iov.size, s->data_len, s->scsi_len); | |
a917d384 | 515 | if (s->scsi_len) { |
29c74f76 | 516 | usb_msd_copy_data(s, p); |
a917d384 | 517 | } |
0659879e | 518 | if (le32_to_cpu(s->csw.residue)) { |
9a77a0f5 | 519 | int len = p->iov.size - p->actual_length; |
29c74f76 GH |
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 | } | |
a917d384 | 527 | } |
9a77a0f5 | 528 | if (p->actual_length < p->iov.size) { |
06f9847d | 529 | DPRINTF("Deferring packet %p [wait data-in]\n", p); |
4d611c9a | 530 | s->packet = p; |
9a77a0f5 | 531 | p->status = USB_RET_ASYNC; |
4d611c9a | 532 | } |
2e5d83bb PB |
533 | break; |
534 | ||
535 | default: | |
29c74f76 | 536 | DPRINTF("Unexpected read (len %zd)\n", p->iov.size); |
2e5d83bb PB |
537 | goto fail; |
538 | } | |
539 | break; | |
540 | ||
541 | default: | |
542 | DPRINTF("Bad token\n"); | |
543 | fail: | |
9a77a0f5 | 544 | p->status = USB_RET_STALL; |
2e5d83bb PB |
545 | break; |
546 | } | |
2e5d83bb PB |
547 | } |
548 | ||
b3e461d3 GH |
549 | static void usb_msd_password_cb(void *opaque, int err) |
550 | { | |
551 | MSDState *s = opaque; | |
552 | ||
553 | if (!err) | |
fa19bf83 HG |
554 | err = usb_device_attach(&s->dev); |
555 | ||
556 | if (err) | |
56f9107e | 557 | qdev_unplug(&s->dev.qdev, NULL); |
b3e461d3 GH |
558 | } |
559 | ||
5de88b1d GH |
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 | ||
34707333 | 571 | static const struct SCSIBusInfo usb_msd_scsi_info_storage = { |
afd4030c | 572 | .tcq = false, |
7e0380b9 PB |
573 | .max_target = 0, |
574 | .max_lun = 0, | |
afd4030c | 575 | |
c6df7102 | 576 | .transfer_data = usb_msd_transfer_data, |
94d3f98a | 577 | .complete = usb_msd_command_complete, |
5de88b1d GH |
578 | .cancel = usb_msd_request_cancelled, |
579 | .load_request = usb_msd_load_request, | |
cfdc1bb0 PB |
580 | }; |
581 | ||
34707333 GH |
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) | |
806b6024 GH |
594 | { |
595 | MSDState *s = DO_UPCAST(MSDState, dev, dev); | |
f8b6cc00 | 596 | BlockDriverState *bs = s->conf.bs; |
34707333 | 597 | SCSIDevice *scsi_dev; |
806b6024 | 598 | |
f8b6cc00 | 599 | if (!bs) { |
6a84cb1f | 600 | error_report("drive property not set"); |
7fc2f2c0 GH |
601 | return -1; |
602 | } | |
603 | ||
911525db MA |
604 | blkconf_serial(&s->conf, &s->serial); |
605 | ||
14bafc54 MA |
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 | |
18846dee MA |
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. | |
14bafc54 MA |
612 | * |
613 | * The hack is probably a bad idea. | |
614 | */ | |
fa879d62 | 615 | bdrv_detach_dev(bs, &s->dev.qdev); |
f8b6cc00 | 616 | s->conf.bs = NULL; |
14bafc54 | 617 | |
c3a90cb1 MA |
618 | if (s->serial) { |
619 | usb_desc_set_string(dev, STR_SERIALNUMBER, s->serial); | |
9d55d1ad GH |
620 | } else { |
621 | usb_desc_create_serial(dev); | |
4a1e1bc4 GH |
622 | } |
623 | ||
a980a065 | 624 | usb_desc_init(dev); |
34707333 GH |
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, | |
ce4e7e46 | 627 | s->conf.bootindex); |
34707333 | 628 | if (!scsi_dev) { |
fa66b909 MA |
629 | return -1; |
630 | } | |
cb23117b | 631 | s->bus.qbus.allow_hotplug = 0; |
7fc2f2c0 | 632 | usb_msd_handle_reset(dev); |
b3e461d3 | 633 | |
f8b6cc00 | 634 | if (bdrv_key_required(bs)) { |
a4426488 | 635 | if (cur_mon) { |
f8b6cc00 | 636 | monitor_read_bdrv_key_start(cur_mon, bs, usb_msd_password_cb, s); |
b3e461d3 GH |
637 | s->dev.auto_attach = 0; |
638 | } else { | |
639 | autostart = 0; | |
640 | } | |
641 | } | |
642 | ||
806b6024 GH |
643 | return 0; |
644 | } | |
645 | ||
34707333 GH |
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 | ||
3741715c | 659 | static USBDevice *usb_msd_init(USBBus *bus, const char *filename) |
2e5d83bb | 660 | { |
7fc2f2c0 GH |
661 | static int nr=0; |
662 | char id[8]; | |
663 | QemuOpts *opts; | |
664 | DriveInfo *dinfo; | |
806b6024 | 665 | USBDevice *dev; |
334c0241 AJ |
666 | const char *p1; |
667 | char fmt[32]; | |
668 | ||
7fc2f2c0 GH |
669 | /* parse -usbdevice disk: syntax into drive opts */ |
670 | snprintf(id, sizeof(id), "usb%d", nr++); | |
8be7e7e4 | 671 | opts = qemu_opts_create(qemu_find_opts("drive"), id, 0, NULL); |
7fc2f2c0 | 672 | |
334c0241 AJ |
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); | |
7fc2f2c0 | 680 | qemu_opt_set(opts, "format", fmt); |
334c0241 AJ |
681 | } else if (*filename != ':') { |
682 | printf("unrecognized USB mass-storage option %s\n", filename); | |
683 | return NULL; | |
684 | } | |
334c0241 AJ |
685 | filename = p1; |
686 | } | |
334c0241 AJ |
687 | if (!*filename) { |
688 | printf("block device specification needed\n"); | |
689 | return NULL; | |
690 | } | |
7fc2f2c0 GH |
691 | qemu_opt_set(opts, "file", filename); |
692 | qemu_opt_set(opts, "if", "none"); | |
2e5d83bb | 693 | |
7fc2f2c0 | 694 | /* create host drive */ |
319ae529 | 695 | dinfo = drive_init(opts, 0); |
7fc2f2c0 GH |
696 | if (!dinfo) { |
697 | qemu_opts_del(opts); | |
806b6024 | 698 | return NULL; |
7fc2f2c0 | 699 | } |
2e5d83bb | 700 | |
7fc2f2c0 | 701 | /* create guest device */ |
3741715c | 702 | dev = usb_create(bus, "usb-storage"); |
d44168ff PB |
703 | if (!dev) { |
704 | return NULL; | |
705 | } | |
18846dee MA |
706 | if (qdev_prop_set_drive(&dev->qdev, "drive", dinfo->bdrv) < 0) { |
707 | qdev_free(&dev->qdev); | |
708 | return NULL; | |
709 | } | |
33e66b86 MA |
710 | if (qdev_init(&dev->qdev) < 0) |
711 | return NULL; | |
1f6e24e7 | 712 | |
7fc2f2c0 | 713 | return dev; |
2e5d83bb | 714 | } |
bb5fc20f | 715 | |
f54b6563 GH |
716 | static const VMStateDescription vmstate_usb_msd = { |
717 | .name = "usb-storage", | |
f54b6563 GH |
718 | .version_id = 1, |
719 | .minimum_version_id = 1, | |
720 | .fields = (VMStateField []) { | |
721 | VMSTATE_USB_DEVICE(dev, MSDState), | |
5de88b1d GH |
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), | |
f54b6563 GH |
730 | VMSTATE_END_OF_LIST() |
731 | } | |
732 | }; | |
733 | ||
39bffca2 AL |
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 | ||
34707333 | 741 | static void usb_msd_class_initfn_common(ObjectClass *klass) |
62aed765 | 742 | { |
39bffca2 | 743 | DeviceClass *dc = DEVICE_CLASS(klass); |
62aed765 AL |
744 | USBDeviceClass *uc = USB_DEVICE_CLASS(klass); |
745 | ||
62aed765 AL |
746 | uc->product_desc = "QEMU USB MSD"; |
747 | uc->usb_desc = &desc; | |
62aed765 AL |
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; | |
39bffca2 AL |
753 | dc->fw_name = "storage"; |
754 | dc->vmsd = &vmstate_usb_msd; | |
34707333 GH |
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; | |
39bffca2 | 763 | dc->props = msd_properties; |
34707333 GH |
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); | |
62aed765 AL |
773 | } |
774 | ||
8c43a6f0 | 775 | static const TypeInfo msd_info = { |
39bffca2 AL |
776 | .name = "usb-storage", |
777 | .parent = TYPE_USB_DEVICE, | |
778 | .instance_size = sizeof(MSDState), | |
34707333 GH |
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, | |
806b6024 GH |
787 | }; |
788 | ||
83f7d43a | 789 | static void usb_msd_register_types(void) |
806b6024 | 790 | { |
39bffca2 | 791 | type_register_static(&msd_info); |
34707333 | 792 | type_register_static(&bot_info); |
ba02430f | 793 | usb_legacy_register("usb-storage", "disk", usb_msd_init); |
806b6024 | 794 | } |
83f7d43a AF |
795 | |
796 | type_init(usb_msd_register_types) |