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Commit | Line | Data |
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bb36d470 FB |
1 | /* |
2 | * QEMU USB emulation | |
3 | * | |
4 | * Copyright (c) 2005 Fabrice Bellard | |
5fafdf24 | 5 | * |
89b9b79f AL |
6 | * 2008 Generic packet handler rewrite by Max Krasnyansky |
7 | * | |
bb36d470 FB |
8 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
9 | * of this software and associated documentation files (the "Software"), to deal | |
10 | * in the Software without restriction, including without limitation the rights | |
11 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
12 | * copies of the Software, and to permit persons to whom the Software is | |
13 | * furnished to do so, subject to the following conditions: | |
14 | * | |
15 | * The above copyright notice and this permission notice shall be included in | |
16 | * all copies or substantial portions of the Software. | |
17 | * | |
18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
19 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
20 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
21 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
22 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
23 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
24 | * THE SOFTWARE. | |
25 | */ | |
87ecb68b | 26 | #include "qemu-common.h" |
f1ae32a1 | 27 | #include "hw/usb.h" |
4f4321c1 | 28 | #include "iov.h" |
808aeb98 | 29 | #include "trace.h" |
bb36d470 | 30 | |
891fb2cd | 31 | void usb_attach(USBPort *port) |
bb36d470 | 32 | { |
891fb2cd GH |
33 | USBDevice *dev = port->dev; |
34 | ||
35 | assert(dev != NULL); | |
36 | assert(dev->attached); | |
e0b8e72d | 37 | assert(dev->state == USB_STATE_NOTATTACHED); |
891fb2cd | 38 | port->ops->attach(port); |
d1f8b536 GH |
39 | dev->state = USB_STATE_ATTACHED; |
40 | usb_device_handle_attach(dev); | |
891fb2cd GH |
41 | } |
42 | ||
43 | void usb_detach(USBPort *port) | |
44 | { | |
45 | USBDevice *dev = port->dev; | |
46 | ||
47 | assert(dev != NULL); | |
e0b8e72d | 48 | assert(dev->state != USB_STATE_NOTATTACHED); |
891fb2cd | 49 | port->ops->detach(port); |
d1f8b536 | 50 | dev->state = USB_STATE_NOTATTACHED; |
bb36d470 FB |
51 | } |
52 | ||
d28f4e2d | 53 | void usb_port_reset(USBPort *port) |
e0b8e72d GH |
54 | { |
55 | USBDevice *dev = port->dev; | |
56 | ||
57 | assert(dev != NULL); | |
58 | usb_detach(port); | |
59 | usb_attach(port); | |
d28f4e2d GH |
60 | usb_device_reset(dev); |
61 | } | |
62 | ||
63 | void usb_device_reset(USBDevice *dev) | |
64 | { | |
65 | if (dev == NULL || !dev->attached) { | |
66 | return; | |
67 | } | |
68 | dev->remote_wakeup = 0; | |
69 | dev->addr = 0; | |
70 | dev->state = USB_STATE_DEFAULT; | |
71 | usb_device_handle_reset(dev); | |
e0b8e72d GH |
72 | } |
73 | ||
7567b51f | 74 | void usb_wakeup(USBEndpoint *ep) |
01eacab6 | 75 | { |
7567b51f | 76 | USBDevice *dev = ep->dev; |
37f32f0f | 77 | USBBus *bus = usb_bus_from_device(dev); |
7567b51f | 78 | |
01eacab6 | 79 | if (dev->remote_wakeup && dev->port && dev->port->ops->wakeup) { |
d47e59b8 | 80 | dev->port->ops->wakeup(dev->port); |
01eacab6 | 81 | } |
37f32f0f GH |
82 | if (bus->ops->wakeup_endpoint) { |
83 | bus->ops->wakeup_endpoint(bus, ep); | |
84 | } | |
01eacab6 GH |
85 | } |
86 | ||
bb36d470 | 87 | /**********************/ |
89b9b79f | 88 | |
bb36d470 FB |
89 | /* generic USB device helpers (you are not forced to use them when |
90 | writing your USB device driver, but they help handling the | |
5fafdf24 | 91 | protocol) |
bb36d470 FB |
92 | */ |
93 | ||
50b7963e HG |
94 | #define SETUP_STATE_IDLE 0 |
95 | #define SETUP_STATE_SETUP 1 | |
96 | #define SETUP_STATE_DATA 2 | |
97 | #define SETUP_STATE_ACK 3 | |
1b4b29a1 | 98 | #define SETUP_STATE_PARAM 4 |
bb36d470 | 99 | |
89b9b79f AL |
100 | static int do_token_setup(USBDevice *s, USBPacket *p) |
101 | { | |
102 | int request, value, index; | |
103 | int ret = 0; | |
104 | ||
4f4321c1 | 105 | if (p->iov.size != 8) { |
89b9b79f | 106 | return USB_RET_STALL; |
4f4321c1 GH |
107 | } |
108 | ||
109 | usb_packet_copy(p, s->setup_buf, p->iov.size); | |
89b9b79f AL |
110 | s->setup_len = (s->setup_buf[7] << 8) | s->setup_buf[6]; |
111 | s->setup_index = 0; | |
112 | ||
113 | request = (s->setup_buf[0] << 8) | s->setup_buf[1]; | |
114 | value = (s->setup_buf[3] << 8) | s->setup_buf[2]; | |
115 | index = (s->setup_buf[5] << 8) | s->setup_buf[4]; | |
007fd62f | 116 | |
89b9b79f | 117 | if (s->setup_buf[0] & USB_DIR_IN) { |
62aed765 AL |
118 | ret = usb_device_handle_control(s, p, request, value, index, |
119 | s->setup_len, s->data_buf); | |
50b7963e HG |
120 | if (ret == USB_RET_ASYNC) { |
121 | s->setup_state = SETUP_STATE_SETUP; | |
122 | return USB_RET_ASYNC; | |
123 | } | |
89b9b79f AL |
124 | if (ret < 0) |
125 | return ret; | |
126 | ||
127 | if (ret < s->setup_len) | |
128 | s->setup_len = ret; | |
129 | s->setup_state = SETUP_STATE_DATA; | |
130 | } else { | |
19f33223 HG |
131 | if (s->setup_len > sizeof(s->data_buf)) { |
132 | fprintf(stderr, | |
133 | "usb_generic_handle_packet: ctrl buffer too small (%d > %zu)\n", | |
134 | s->setup_len, sizeof(s->data_buf)); | |
135 | return USB_RET_STALL; | |
136 | } | |
89b9b79f AL |
137 | if (s->setup_len == 0) |
138 | s->setup_state = SETUP_STATE_ACK; | |
139 | else | |
140 | s->setup_state = SETUP_STATE_DATA; | |
141 | } | |
142 | ||
143 | return ret; | |
144 | } | |
145 | ||
146 | static int do_token_in(USBDevice *s, USBPacket *p) | |
bb36d470 | 147 | { |
89b9b79f AL |
148 | int request, value, index; |
149 | int ret = 0; | |
150 | ||
079d0b7f | 151 | assert(p->ep->nr == 0); |
89b9b79f AL |
152 | |
153 | request = (s->setup_buf[0] << 8) | s->setup_buf[1]; | |
154 | value = (s->setup_buf[3] << 8) | s->setup_buf[2]; | |
155 | index = (s->setup_buf[5] << 8) | s->setup_buf[4]; | |
156 | ||
157 | switch(s->setup_state) { | |
158 | case SETUP_STATE_ACK: | |
159 | if (!(s->setup_buf[0] & USB_DIR_IN)) { | |
62aed765 AL |
160 | ret = usb_device_handle_control(s, p, request, value, index, |
161 | s->setup_len, s->data_buf); | |
007fd62f HG |
162 | if (ret == USB_RET_ASYNC) { |
163 | return USB_RET_ASYNC; | |
164 | } | |
165 | s->setup_state = SETUP_STATE_IDLE; | |
89b9b79f AL |
166 | if (ret > 0) |
167 | return 0; | |
168 | return ret; | |
169 | } | |
170 | ||
171 | /* return 0 byte */ | |
172 | return 0; | |
173 | ||
174 | case SETUP_STATE_DATA: | |
175 | if (s->setup_buf[0] & USB_DIR_IN) { | |
176 | int len = s->setup_len - s->setup_index; | |
4f4321c1 GH |
177 | if (len > p->iov.size) { |
178 | len = p->iov.size; | |
179 | } | |
180 | usb_packet_copy(p, s->data_buf + s->setup_index, len); | |
89b9b79f AL |
181 | s->setup_index += len; |
182 | if (s->setup_index >= s->setup_len) | |
183 | s->setup_state = SETUP_STATE_ACK; | |
184 | return len; | |
185 | } | |
186 | ||
187 | s->setup_state = SETUP_STATE_IDLE; | |
188 | return USB_RET_STALL; | |
189 | ||
190 | default: | |
191 | return USB_RET_STALL; | |
192 | } | |
193 | } | |
194 | ||
195 | static int do_token_out(USBDevice *s, USBPacket *p) | |
196 | { | |
079d0b7f | 197 | assert(p->ep->nr == 0); |
89b9b79f AL |
198 | |
199 | switch(s->setup_state) { | |
200 | case SETUP_STATE_ACK: | |
201 | if (s->setup_buf[0] & USB_DIR_IN) { | |
202 | s->setup_state = SETUP_STATE_IDLE; | |
203 | /* transfer OK */ | |
204 | } else { | |
205 | /* ignore additional output */ | |
206 | } | |
207 | return 0; | |
208 | ||
209 | case SETUP_STATE_DATA: | |
210 | if (!(s->setup_buf[0] & USB_DIR_IN)) { | |
211 | int len = s->setup_len - s->setup_index; | |
4f4321c1 GH |
212 | if (len > p->iov.size) { |
213 | len = p->iov.size; | |
214 | } | |
215 | usb_packet_copy(p, s->data_buf + s->setup_index, len); | |
89b9b79f AL |
216 | s->setup_index += len; |
217 | if (s->setup_index >= s->setup_len) | |
218 | s->setup_state = SETUP_STATE_ACK; | |
219 | return len; | |
220 | } | |
221 | ||
222 | s->setup_state = SETUP_STATE_IDLE; | |
223 | return USB_RET_STALL; | |
224 | ||
225 | default: | |
226 | return USB_RET_STALL; | |
227 | } | |
228 | } | |
bb36d470 | 229 | |
1b4b29a1 GH |
230 | static int do_parameter(USBDevice *s, USBPacket *p) |
231 | { | |
232 | int request, value, index; | |
233 | int i, ret = 0; | |
234 | ||
235 | for (i = 0; i < 8; i++) { | |
236 | s->setup_buf[i] = p->parameter >> (i*8); | |
237 | } | |
238 | ||
239 | s->setup_state = SETUP_STATE_PARAM; | |
240 | s->setup_len = (s->setup_buf[7] << 8) | s->setup_buf[6]; | |
241 | s->setup_index = 0; | |
242 | ||
243 | request = (s->setup_buf[0] << 8) | s->setup_buf[1]; | |
244 | value = (s->setup_buf[3] << 8) | s->setup_buf[2]; | |
245 | index = (s->setup_buf[5] << 8) | s->setup_buf[4]; | |
246 | ||
247 | if (s->setup_len > sizeof(s->data_buf)) { | |
248 | fprintf(stderr, | |
249 | "usb_generic_handle_packet: ctrl buffer too small (%d > %zu)\n", | |
250 | s->setup_len, sizeof(s->data_buf)); | |
251 | return USB_RET_STALL; | |
252 | } | |
253 | ||
254 | if (p->pid == USB_TOKEN_OUT) { | |
255 | usb_packet_copy(p, s->data_buf, s->setup_len); | |
256 | } | |
257 | ||
258 | ret = usb_device_handle_control(s, p, request, value, index, | |
259 | s->setup_len, s->data_buf); | |
260 | if (ret < 0) { | |
261 | return ret; | |
262 | } | |
263 | ||
264 | if (ret < s->setup_len) { | |
265 | s->setup_len = ret; | |
266 | } | |
267 | if (p->pid == USB_TOKEN_IN) { | |
268 | usb_packet_copy(p, s->data_buf, s->setup_len); | |
269 | } | |
270 | ||
271 | return ret; | |
272 | } | |
273 | ||
50b7963e HG |
274 | /* ctrl complete function for devices which use usb_generic_handle_packet and |
275 | may return USB_RET_ASYNC from their handle_control callback. Device code | |
276 | which does this *must* call this function instead of the normal | |
277 | usb_packet_complete to complete their async control packets. */ | |
278 | void usb_generic_async_ctrl_complete(USBDevice *s, USBPacket *p) | |
279 | { | |
4f4321c1 | 280 | if (p->result < 0) { |
50b7963e HG |
281 | s->setup_state = SETUP_STATE_IDLE; |
282 | } | |
283 | ||
284 | switch (s->setup_state) { | |
285 | case SETUP_STATE_SETUP: | |
4f4321c1 GH |
286 | if (p->result < s->setup_len) { |
287 | s->setup_len = p->result; | |
50b7963e HG |
288 | } |
289 | s->setup_state = SETUP_STATE_DATA; | |
4f4321c1 | 290 | p->result = 8; |
50b7963e HG |
291 | break; |
292 | ||
293 | case SETUP_STATE_ACK: | |
294 | s->setup_state = SETUP_STATE_IDLE; | |
4f4321c1 | 295 | p->result = 0; |
50b7963e HG |
296 | break; |
297 | ||
1b4b29a1 GH |
298 | case SETUP_STATE_PARAM: |
299 | if (p->result < s->setup_len) { | |
300 | s->setup_len = p->result; | |
301 | } | |
302 | if (p->pid == USB_TOKEN_IN) { | |
303 | p->result = 0; | |
304 | usb_packet_copy(p, s->data_buf, s->setup_len); | |
305 | } | |
306 | break; | |
307 | ||
50b7963e HG |
308 | default: |
309 | break; | |
310 | } | |
311 | usb_packet_complete(s, p); | |
312 | } | |
313 | ||
bb36d470 FB |
314 | /* XXX: fix overflow */ |
315 | int set_usb_string(uint8_t *buf, const char *str) | |
316 | { | |
317 | int len, i; | |
318 | uint8_t *q; | |
319 | ||
320 | q = buf; | |
321 | len = strlen(str); | |
ce5c37c2 | 322 | *q++ = 2 * len + 2; |
bb36d470 FB |
323 | *q++ = 3; |
324 | for(i = 0; i < len; i++) { | |
325 | *q++ = str[i]; | |
326 | *q++ = 0; | |
327 | } | |
328 | return q - buf; | |
329 | } | |
4d611c9a | 330 | |
73796fe6 GH |
331 | USBDevice *usb_find_device(USBPort *port, uint8_t addr) |
332 | { | |
333 | USBDevice *dev = port->dev; | |
334 | ||
335 | if (dev == NULL || !dev->attached || dev->state != USB_STATE_DEFAULT) { | |
336 | return NULL; | |
337 | } | |
338 | if (dev->addr == addr) { | |
339 | return dev; | |
340 | } | |
341 | return usb_device_find_device(dev, addr); | |
342 | } | |
343 | ||
db4be873 GH |
344 | static int usb_process_one(USBPacket *p) |
345 | { | |
346 | USBDevice *dev = p->ep->dev; | |
347 | ||
348 | if (p->ep->nr == 0) { | |
349 | /* control pipe */ | |
1b4b29a1 GH |
350 | if (p->parameter) { |
351 | return do_parameter(dev, p); | |
352 | } | |
db4be873 GH |
353 | switch (p->pid) { |
354 | case USB_TOKEN_SETUP: | |
355 | return do_token_setup(dev, p); | |
356 | case USB_TOKEN_IN: | |
357 | return do_token_in(dev, p); | |
358 | case USB_TOKEN_OUT: | |
359 | return do_token_out(dev, p); | |
360 | default: | |
361 | return USB_RET_STALL; | |
362 | } | |
363 | } else { | |
364 | /* data pipe */ | |
365 | return usb_device_handle_data(dev, p); | |
366 | } | |
367 | } | |
368 | ||
53aa8c0e GH |
369 | /* Hand over a packet to a device for processing. Return value |
370 | USB_RET_ASYNC indicates the processing isn't finished yet, the | |
371 | driver will call usb_packet_complete() when done processing it. */ | |
372 | int usb_handle_packet(USBDevice *dev, USBPacket *p) | |
373 | { | |
374 | int ret; | |
375 | ||
98861f51 GH |
376 | if (dev == NULL) { |
377 | return USB_RET_NODEV; | |
378 | } | |
079d0b7f | 379 | assert(dev == p->ep->dev); |
1977f93d | 380 | assert(dev->state == USB_STATE_DEFAULT); |
5ac2731c | 381 | usb_packet_check_state(p, USB_PACKET_SETUP); |
db4be873 | 382 | assert(p->ep != NULL); |
1977f93d | 383 | |
7936e0f0 | 384 | if (QTAILQ_EMPTY(&p->ep->queue) || p->ep->pipeline) { |
db4be873 GH |
385 | ret = usb_process_one(p); |
386 | if (ret == USB_RET_ASYNC) { | |
387 | usb_packet_set_state(p, USB_PACKET_ASYNC); | |
388 | QTAILQ_INSERT_TAIL(&p->ep->queue, p, queue); | |
389 | } else { | |
390 | p->result = ret; | |
391 | usb_packet_set_state(p, USB_PACKET_COMPLETE); | |
1977f93d GH |
392 | } |
393 | } else { | |
db4be873 GH |
394 | ret = USB_RET_ASYNC; |
395 | usb_packet_set_state(p, USB_PACKET_QUEUED); | |
396 | QTAILQ_INSERT_TAIL(&p->ep->queue, p, queue); | |
4ff658fb | 397 | } |
53aa8c0e | 398 | return ret; |
89b9b79f | 399 | } |
4ff658fb GH |
400 | |
401 | /* Notify the controller that an async packet is complete. This should only | |
402 | be called for packets previously deferred by returning USB_RET_ASYNC from | |
403 | handle_packet. */ | |
404 | void usb_packet_complete(USBDevice *dev, USBPacket *p) | |
405 | { | |
db4be873 GH |
406 | USBEndpoint *ep = p->ep; |
407 | int ret; | |
408 | ||
5ac2731c | 409 | usb_packet_check_state(p, USB_PACKET_ASYNC); |
db4be873 GH |
410 | assert(QTAILQ_FIRST(&ep->queue) == p); |
411 | usb_packet_set_state(p, USB_PACKET_COMPLETE); | |
412 | QTAILQ_REMOVE(&ep->queue, p, queue); | |
4d8debba | 413 | dev->port->ops->complete(dev->port, p); |
db4be873 GH |
414 | |
415 | while (!QTAILQ_EMPTY(&ep->queue)) { | |
416 | p = QTAILQ_FIRST(&ep->queue); | |
eb9d4673 GH |
417 | if (p->state == USB_PACKET_ASYNC) { |
418 | break; | |
419 | } | |
5ac2731c | 420 | usb_packet_check_state(p, USB_PACKET_QUEUED); |
db4be873 GH |
421 | ret = usb_process_one(p); |
422 | if (ret == USB_RET_ASYNC) { | |
423 | usb_packet_set_state(p, USB_PACKET_ASYNC); | |
424 | break; | |
425 | } | |
426 | p->result = ret; | |
427 | usb_packet_set_state(p, USB_PACKET_COMPLETE); | |
428 | QTAILQ_REMOVE(&ep->queue, p, queue); | |
429 | dev->port->ops->complete(dev->port, p); | |
430 | } | |
4ff658fb GH |
431 | } |
432 | ||
433 | /* Cancel an active packet. The packed must have been deferred by | |
434 | returning USB_RET_ASYNC from handle_packet, and not yet | |
435 | completed. */ | |
436 | void usb_cancel_packet(USBPacket * p) | |
437 | { | |
db4be873 GH |
438 | bool callback = (p->state == USB_PACKET_ASYNC); |
439 | assert(usb_packet_is_inflight(p)); | |
440 | usb_packet_set_state(p, USB_PACKET_CANCELED); | |
441 | QTAILQ_REMOVE(&p->ep->queue, p, queue); | |
442 | if (callback) { | |
443 | usb_device_cancel_packet(p->ep->dev, p); | |
444 | } | |
4ff658fb | 445 | } |
4f4321c1 GH |
446 | |
447 | ||
448 | void usb_packet_init(USBPacket *p) | |
449 | { | |
450 | qemu_iovec_init(&p->iov, 1); | |
451 | } | |
452 | ||
5ac2731c | 453 | static const char *usb_packet_state_name(USBPacketState state) |
db4be873 | 454 | { |
db4be873 GH |
455 | static const char *name[] = { |
456 | [USB_PACKET_UNDEFINED] = "undef", | |
457 | [USB_PACKET_SETUP] = "setup", | |
458 | [USB_PACKET_QUEUED] = "queued", | |
459 | [USB_PACKET_ASYNC] = "async", | |
460 | [USB_PACKET_COMPLETE] = "complete", | |
461 | [USB_PACKET_CANCELED] = "canceled", | |
462 | }; | |
5ac2731c GH |
463 | if (state < ARRAY_SIZE(name)) { |
464 | return name[state]; | |
465 | } | |
466 | return "INVALID"; | |
467 | } | |
468 | ||
469 | void usb_packet_check_state(USBPacket *p, USBPacketState expected) | |
470 | { | |
471 | USBDevice *dev; | |
472 | USBBus *bus; | |
473 | ||
474 | if (p->state == expected) { | |
475 | return; | |
476 | } | |
477 | dev = p->ep->dev; | |
478 | bus = usb_bus_from_device(dev); | |
479 | trace_usb_packet_state_fault(bus->busnr, dev->port->path, p->ep->nr, p, | |
480 | usb_packet_state_name(p->state), | |
481 | usb_packet_state_name(expected)); | |
482 | assert(!"usb packet state check failed"); | |
483 | } | |
484 | ||
485 | void usb_packet_set_state(USBPacket *p, USBPacketState state) | |
486 | { | |
f5bf14bf GH |
487 | if (p->ep) { |
488 | USBDevice *dev = p->ep->dev; | |
489 | USBBus *bus = usb_bus_from_device(dev); | |
490 | trace_usb_packet_state_change(bus->busnr, dev->port->path, p->ep->nr, p, | |
491 | usb_packet_state_name(p->state), | |
492 | usb_packet_state_name(state)); | |
493 | } else { | |
494 | trace_usb_packet_state_change(-1, "", -1, p, | |
495 | usb_packet_state_name(p->state), | |
496 | usb_packet_state_name(state)); | |
497 | } | |
db4be873 GH |
498 | p->state = state; |
499 | } | |
500 | ||
079d0b7f | 501 | void usb_packet_setup(USBPacket *p, int pid, USBEndpoint *ep) |
4f4321c1 | 502 | { |
f53c398a | 503 | assert(!usb_packet_is_inflight(p)); |
4f4321c1 | 504 | p->pid = pid; |
079d0b7f | 505 | p->ep = ep; |
4f4321c1 | 506 | p->result = 0; |
1b4b29a1 | 507 | p->parameter = 0; |
4f4321c1 | 508 | qemu_iovec_reset(&p->iov); |
db4be873 | 509 | usb_packet_set_state(p, USB_PACKET_SETUP); |
4f4321c1 GH |
510 | } |
511 | ||
512 | void usb_packet_addbuf(USBPacket *p, void *ptr, size_t len) | |
513 | { | |
514 | qemu_iovec_add(&p->iov, ptr, len); | |
515 | } | |
516 | ||
517 | void usb_packet_copy(USBPacket *p, void *ptr, size_t bytes) | |
518 | { | |
519 | assert(p->result >= 0); | |
520 | assert(p->result + bytes <= p->iov.size); | |
521 | switch (p->pid) { | |
522 | case USB_TOKEN_SETUP: | |
523 | case USB_TOKEN_OUT: | |
524 | iov_to_buf(p->iov.iov, p->iov.niov, ptr, p->result, bytes); | |
525 | break; | |
526 | case USB_TOKEN_IN: | |
527 | iov_from_buf(p->iov.iov, p->iov.niov, ptr, p->result, bytes); | |
528 | break; | |
529 | default: | |
530 | fprintf(stderr, "%s: invalid pid: %x\n", __func__, p->pid); | |
531 | abort(); | |
532 | } | |
533 | p->result += bytes; | |
534 | } | |
535 | ||
536 | void usb_packet_skip(USBPacket *p, size_t bytes) | |
537 | { | |
538 | assert(p->result >= 0); | |
539 | assert(p->result + bytes <= p->iov.size); | |
540 | if (p->pid == USB_TOKEN_IN) { | |
541 | iov_clear(p->iov.iov, p->iov.niov, p->result, bytes); | |
542 | } | |
543 | p->result += bytes; | |
544 | } | |
545 | ||
546 | void usb_packet_cleanup(USBPacket *p) | |
547 | { | |
f53c398a | 548 | assert(!usb_packet_is_inflight(p)); |
4f4321c1 GH |
549 | qemu_iovec_destroy(&p->iov); |
550 | } | |
d8e17efd GH |
551 | |
552 | void usb_ep_init(USBDevice *dev) | |
553 | { | |
554 | int ep; | |
555 | ||
63095ab5 | 556 | dev->ep_ctl.nr = 0; |
25d5de7d GH |
557 | dev->ep_ctl.type = USB_ENDPOINT_XFER_CONTROL; |
558 | dev->ep_ctl.ifnum = 0; | |
559 | dev->ep_ctl.dev = dev; | |
7936e0f0 | 560 | dev->ep_ctl.pipeline = false; |
db4be873 | 561 | QTAILQ_INIT(&dev->ep_ctl.queue); |
d8e17efd | 562 | for (ep = 0; ep < USB_MAX_ENDPOINTS; ep++) { |
63095ab5 GH |
563 | dev->ep_in[ep].nr = ep + 1; |
564 | dev->ep_out[ep].nr = ep + 1; | |
565 | dev->ep_in[ep].pid = USB_TOKEN_IN; | |
566 | dev->ep_out[ep].pid = USB_TOKEN_OUT; | |
d8e17efd GH |
567 | dev->ep_in[ep].type = USB_ENDPOINT_XFER_INVALID; |
568 | dev->ep_out[ep].type = USB_ENDPOINT_XFER_INVALID; | |
82f02fe9 GH |
569 | dev->ep_in[ep].ifnum = 0; |
570 | dev->ep_out[ep].ifnum = 0; | |
25d5de7d GH |
571 | dev->ep_in[ep].dev = dev; |
572 | dev->ep_out[ep].dev = dev; | |
7936e0f0 GH |
573 | dev->ep_in[ep].pipeline = false; |
574 | dev->ep_out[ep].pipeline = false; | |
db4be873 GH |
575 | QTAILQ_INIT(&dev->ep_in[ep].queue); |
576 | QTAILQ_INIT(&dev->ep_out[ep].queue); | |
d8e17efd GH |
577 | } |
578 | } | |
579 | ||
5b6780d0 GH |
580 | void usb_ep_dump(USBDevice *dev) |
581 | { | |
582 | static const char *tname[] = { | |
583 | [USB_ENDPOINT_XFER_CONTROL] = "control", | |
584 | [USB_ENDPOINT_XFER_ISOC] = "isoc", | |
585 | [USB_ENDPOINT_XFER_BULK] = "bulk", | |
586 | [USB_ENDPOINT_XFER_INT] = "int", | |
587 | }; | |
588 | int ifnum, ep, first; | |
589 | ||
590 | fprintf(stderr, "Device \"%s\", config %d\n", | |
591 | dev->product_desc, dev->configuration); | |
592 | for (ifnum = 0; ifnum < 16; ifnum++) { | |
593 | first = 1; | |
594 | for (ep = 0; ep < USB_MAX_ENDPOINTS; ep++) { | |
595 | if (dev->ep_in[ep].type != USB_ENDPOINT_XFER_INVALID && | |
596 | dev->ep_in[ep].ifnum == ifnum) { | |
597 | if (first) { | |
598 | first = 0; | |
599 | fprintf(stderr, " Interface %d, alternative %d\n", | |
600 | ifnum, dev->altsetting[ifnum]); | |
601 | } | |
f003397c GH |
602 | fprintf(stderr, " Endpoint %d, IN, %s, %d max\n", ep, |
603 | tname[dev->ep_in[ep].type], | |
604 | dev->ep_in[ep].max_packet_size); | |
5b6780d0 GH |
605 | } |
606 | if (dev->ep_out[ep].type != USB_ENDPOINT_XFER_INVALID && | |
607 | dev->ep_out[ep].ifnum == ifnum) { | |
608 | if (first) { | |
609 | first = 0; | |
610 | fprintf(stderr, " Interface %d, alternative %d\n", | |
611 | ifnum, dev->altsetting[ifnum]); | |
612 | } | |
f003397c GH |
613 | fprintf(stderr, " Endpoint %d, OUT, %s, %d max\n", ep, |
614 | tname[dev->ep_out[ep].type], | |
615 | dev->ep_out[ep].max_packet_size); | |
5b6780d0 GH |
616 | } |
617 | } | |
618 | } | |
619 | fprintf(stderr, "--\n"); | |
620 | } | |
621 | ||
d8e17efd GH |
622 | struct USBEndpoint *usb_ep_get(USBDevice *dev, int pid, int ep) |
623 | { | |
079d0b7f GH |
624 | struct USBEndpoint *eps; |
625 | ||
626 | if (dev == NULL) { | |
627 | return NULL; | |
628 | } | |
629 | eps = (pid == USB_TOKEN_IN) ? dev->ep_in : dev->ep_out; | |
25d5de7d GH |
630 | if (ep == 0) { |
631 | return &dev->ep_ctl; | |
632 | } | |
d8e17efd GH |
633 | assert(pid == USB_TOKEN_IN || pid == USB_TOKEN_OUT); |
634 | assert(ep > 0 && ep <= USB_MAX_ENDPOINTS); | |
635 | return eps + ep - 1; | |
636 | } | |
637 | ||
638 | uint8_t usb_ep_get_type(USBDevice *dev, int pid, int ep) | |
639 | { | |
640 | struct USBEndpoint *uep = usb_ep_get(dev, pid, ep); | |
641 | return uep->type; | |
642 | } | |
643 | ||
644 | void usb_ep_set_type(USBDevice *dev, int pid, int ep, uint8_t type) | |
645 | { | |
646 | struct USBEndpoint *uep = usb_ep_get(dev, pid, ep); | |
647 | uep->type = type; | |
648 | } | |
82f02fe9 GH |
649 | |
650 | uint8_t usb_ep_get_ifnum(USBDevice *dev, int pid, int ep) | |
651 | { | |
652 | struct USBEndpoint *uep = usb_ep_get(dev, pid, ep); | |
653 | return uep->ifnum; | |
654 | } | |
655 | ||
656 | void usb_ep_set_ifnum(USBDevice *dev, int pid, int ep, uint8_t ifnum) | |
657 | { | |
658 | struct USBEndpoint *uep = usb_ep_get(dev, pid, ep); | |
659 | uep->ifnum = ifnum; | |
660 | } | |
f003397c GH |
661 | |
662 | void usb_ep_set_max_packet_size(USBDevice *dev, int pid, int ep, | |
663 | uint16_t raw) | |
664 | { | |
665 | struct USBEndpoint *uep = usb_ep_get(dev, pid, ep); | |
666 | int size, microframes; | |
667 | ||
668 | size = raw & 0x7ff; | |
669 | switch ((raw >> 11) & 3) { | |
670 | case 1: | |
671 | microframes = 2; | |
672 | break; | |
673 | case 2: | |
674 | microframes = 3; | |
675 | break; | |
676 | default: | |
677 | microframes = 1; | |
678 | break; | |
679 | } | |
680 | uep->max_packet_size = size * microframes; | |
681 | } | |
682 | ||
683 | int usb_ep_get_max_packet_size(USBDevice *dev, int pid, int ep) | |
684 | { | |
685 | struct USBEndpoint *uep = usb_ep_get(dev, pid, ep); | |
686 | return uep->max_packet_size; | |
687 | } | |
7936e0f0 GH |
688 | |
689 | void usb_ep_set_pipeline(USBDevice *dev, int pid, int ep, bool enabled) | |
690 | { | |
691 | struct USBEndpoint *uep = usb_ep_get(dev, pid, ep); | |
692 | uep->pipeline = enabled; | |
693 | } |