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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); | |
c19537a1 | 110 | p->result = 0; |
89b9b79f AL |
111 | s->setup_len = (s->setup_buf[7] << 8) | s->setup_buf[6]; |
112 | s->setup_index = 0; | |
113 | ||
114 | request = (s->setup_buf[0] << 8) | s->setup_buf[1]; | |
115 | value = (s->setup_buf[3] << 8) | s->setup_buf[2]; | |
116 | index = (s->setup_buf[5] << 8) | s->setup_buf[4]; | |
007fd62f | 117 | |
89b9b79f | 118 | if (s->setup_buf[0] & USB_DIR_IN) { |
62aed765 AL |
119 | ret = usb_device_handle_control(s, p, request, value, index, |
120 | s->setup_len, s->data_buf); | |
50b7963e HG |
121 | if (ret == USB_RET_ASYNC) { |
122 | s->setup_state = SETUP_STATE_SETUP; | |
123 | return USB_RET_ASYNC; | |
124 | } | |
89b9b79f AL |
125 | if (ret < 0) |
126 | return ret; | |
127 | ||
128 | if (ret < s->setup_len) | |
129 | s->setup_len = ret; | |
130 | s->setup_state = SETUP_STATE_DATA; | |
131 | } else { | |
19f33223 HG |
132 | if (s->setup_len > sizeof(s->data_buf)) { |
133 | fprintf(stderr, | |
134 | "usb_generic_handle_packet: ctrl buffer too small (%d > %zu)\n", | |
135 | s->setup_len, sizeof(s->data_buf)); | |
136 | return USB_RET_STALL; | |
137 | } | |
89b9b79f AL |
138 | if (s->setup_len == 0) |
139 | s->setup_state = SETUP_STATE_ACK; | |
140 | else | |
141 | s->setup_state = SETUP_STATE_DATA; | |
142 | } | |
143 | ||
144 | return ret; | |
145 | } | |
146 | ||
147 | static int do_token_in(USBDevice *s, USBPacket *p) | |
bb36d470 | 148 | { |
89b9b79f AL |
149 | int request, value, index; |
150 | int ret = 0; | |
151 | ||
079d0b7f | 152 | assert(p->ep->nr == 0); |
89b9b79f AL |
153 | |
154 | request = (s->setup_buf[0] << 8) | s->setup_buf[1]; | |
155 | value = (s->setup_buf[3] << 8) | s->setup_buf[2]; | |
156 | index = (s->setup_buf[5] << 8) | s->setup_buf[4]; | |
157 | ||
158 | switch(s->setup_state) { | |
159 | case SETUP_STATE_ACK: | |
160 | if (!(s->setup_buf[0] & USB_DIR_IN)) { | |
62aed765 AL |
161 | ret = usb_device_handle_control(s, p, request, value, index, |
162 | s->setup_len, s->data_buf); | |
007fd62f HG |
163 | if (ret == USB_RET_ASYNC) { |
164 | return USB_RET_ASYNC; | |
165 | } | |
166 | s->setup_state = SETUP_STATE_IDLE; | |
89b9b79f AL |
167 | if (ret > 0) |
168 | return 0; | |
169 | return ret; | |
170 | } | |
171 | ||
172 | /* return 0 byte */ | |
173 | return 0; | |
174 | ||
175 | case SETUP_STATE_DATA: | |
176 | if (s->setup_buf[0] & USB_DIR_IN) { | |
177 | int len = s->setup_len - s->setup_index; | |
4f4321c1 GH |
178 | if (len > p->iov.size) { |
179 | len = p->iov.size; | |
180 | } | |
181 | usb_packet_copy(p, s->data_buf + s->setup_index, len); | |
89b9b79f AL |
182 | s->setup_index += len; |
183 | if (s->setup_index >= s->setup_len) | |
184 | s->setup_state = SETUP_STATE_ACK; | |
185 | return len; | |
186 | } | |
187 | ||
188 | s->setup_state = SETUP_STATE_IDLE; | |
189 | return USB_RET_STALL; | |
190 | ||
191 | default: | |
192 | return USB_RET_STALL; | |
193 | } | |
194 | } | |
195 | ||
196 | static int do_token_out(USBDevice *s, USBPacket *p) | |
197 | { | |
079d0b7f | 198 | assert(p->ep->nr == 0); |
89b9b79f AL |
199 | |
200 | switch(s->setup_state) { | |
201 | case SETUP_STATE_ACK: | |
202 | if (s->setup_buf[0] & USB_DIR_IN) { | |
203 | s->setup_state = SETUP_STATE_IDLE; | |
204 | /* transfer OK */ | |
205 | } else { | |
206 | /* ignore additional output */ | |
207 | } | |
208 | return 0; | |
209 | ||
210 | case SETUP_STATE_DATA: | |
211 | if (!(s->setup_buf[0] & USB_DIR_IN)) { | |
212 | int len = s->setup_len - s->setup_index; | |
4f4321c1 GH |
213 | if (len > p->iov.size) { |
214 | len = p->iov.size; | |
215 | } | |
216 | usb_packet_copy(p, s->data_buf + s->setup_index, len); | |
89b9b79f AL |
217 | s->setup_index += len; |
218 | if (s->setup_index >= s->setup_len) | |
219 | s->setup_state = SETUP_STATE_ACK; | |
220 | return len; | |
221 | } | |
222 | ||
223 | s->setup_state = SETUP_STATE_IDLE; | |
224 | return USB_RET_STALL; | |
225 | ||
226 | default: | |
227 | return USB_RET_STALL; | |
228 | } | |
229 | } | |
bb36d470 | 230 | |
1b4b29a1 GH |
231 | static int do_parameter(USBDevice *s, USBPacket *p) |
232 | { | |
233 | int request, value, index; | |
234 | int i, ret = 0; | |
235 | ||
236 | for (i = 0; i < 8; i++) { | |
237 | s->setup_buf[i] = p->parameter >> (i*8); | |
238 | } | |
239 | ||
240 | s->setup_state = SETUP_STATE_PARAM; | |
241 | s->setup_len = (s->setup_buf[7] << 8) | s->setup_buf[6]; | |
242 | s->setup_index = 0; | |
243 | ||
244 | request = (s->setup_buf[0] << 8) | s->setup_buf[1]; | |
245 | value = (s->setup_buf[3] << 8) | s->setup_buf[2]; | |
246 | index = (s->setup_buf[5] << 8) | s->setup_buf[4]; | |
247 | ||
248 | if (s->setup_len > sizeof(s->data_buf)) { | |
249 | fprintf(stderr, | |
250 | "usb_generic_handle_packet: ctrl buffer too small (%d > %zu)\n", | |
251 | s->setup_len, sizeof(s->data_buf)); | |
252 | return USB_RET_STALL; | |
253 | } | |
254 | ||
255 | if (p->pid == USB_TOKEN_OUT) { | |
256 | usb_packet_copy(p, s->data_buf, s->setup_len); | |
257 | } | |
258 | ||
259 | ret = usb_device_handle_control(s, p, request, value, index, | |
260 | s->setup_len, s->data_buf); | |
261 | if (ret < 0) { | |
262 | return ret; | |
263 | } | |
264 | ||
265 | if (ret < s->setup_len) { | |
266 | s->setup_len = ret; | |
267 | } | |
268 | if (p->pid == USB_TOKEN_IN) { | |
269 | usb_packet_copy(p, s->data_buf, s->setup_len); | |
270 | } | |
271 | ||
272 | return ret; | |
273 | } | |
274 | ||
50b7963e HG |
275 | /* ctrl complete function for devices which use usb_generic_handle_packet and |
276 | may return USB_RET_ASYNC from their handle_control callback. Device code | |
277 | which does this *must* call this function instead of the normal | |
278 | usb_packet_complete to complete their async control packets. */ | |
279 | void usb_generic_async_ctrl_complete(USBDevice *s, USBPacket *p) | |
280 | { | |
4f4321c1 | 281 | if (p->result < 0) { |
50b7963e HG |
282 | s->setup_state = SETUP_STATE_IDLE; |
283 | } | |
284 | ||
285 | switch (s->setup_state) { | |
286 | case SETUP_STATE_SETUP: | |
4f4321c1 GH |
287 | if (p->result < s->setup_len) { |
288 | s->setup_len = p->result; | |
50b7963e HG |
289 | } |
290 | s->setup_state = SETUP_STATE_DATA; | |
4f4321c1 | 291 | p->result = 8; |
50b7963e HG |
292 | break; |
293 | ||
294 | case SETUP_STATE_ACK: | |
295 | s->setup_state = SETUP_STATE_IDLE; | |
4f4321c1 | 296 | p->result = 0; |
50b7963e HG |
297 | break; |
298 | ||
1b4b29a1 GH |
299 | case SETUP_STATE_PARAM: |
300 | if (p->result < s->setup_len) { | |
301 | s->setup_len = p->result; | |
302 | } | |
303 | if (p->pid == USB_TOKEN_IN) { | |
304 | p->result = 0; | |
305 | usb_packet_copy(p, s->data_buf, s->setup_len); | |
306 | } | |
307 | break; | |
308 | ||
50b7963e HG |
309 | default: |
310 | break; | |
311 | } | |
312 | usb_packet_complete(s, p); | |
313 | } | |
314 | ||
bb36d470 FB |
315 | /* XXX: fix overflow */ |
316 | int set_usb_string(uint8_t *buf, const char *str) | |
317 | { | |
318 | int len, i; | |
319 | uint8_t *q; | |
320 | ||
321 | q = buf; | |
322 | len = strlen(str); | |
ce5c37c2 | 323 | *q++ = 2 * len + 2; |
bb36d470 FB |
324 | *q++ = 3; |
325 | for(i = 0; i < len; i++) { | |
326 | *q++ = str[i]; | |
327 | *q++ = 0; | |
328 | } | |
329 | return q - buf; | |
330 | } | |
4d611c9a | 331 | |
73796fe6 GH |
332 | USBDevice *usb_find_device(USBPort *port, uint8_t addr) |
333 | { | |
334 | USBDevice *dev = port->dev; | |
335 | ||
336 | if (dev == NULL || !dev->attached || dev->state != USB_STATE_DEFAULT) { | |
337 | return NULL; | |
338 | } | |
339 | if (dev->addr == addr) { | |
340 | return dev; | |
341 | } | |
342 | return usb_device_find_device(dev, addr); | |
343 | } | |
344 | ||
db4be873 GH |
345 | static int usb_process_one(USBPacket *p) |
346 | { | |
347 | USBDevice *dev = p->ep->dev; | |
348 | ||
349 | if (p->ep->nr == 0) { | |
350 | /* control pipe */ | |
1b4b29a1 GH |
351 | if (p->parameter) { |
352 | return do_parameter(dev, p); | |
353 | } | |
db4be873 GH |
354 | switch (p->pid) { |
355 | case USB_TOKEN_SETUP: | |
356 | return do_token_setup(dev, p); | |
357 | case USB_TOKEN_IN: | |
358 | return do_token_in(dev, p); | |
359 | case USB_TOKEN_OUT: | |
360 | return do_token_out(dev, p); | |
361 | default: | |
362 | return USB_RET_STALL; | |
363 | } | |
364 | } else { | |
365 | /* data pipe */ | |
366 | return usb_device_handle_data(dev, p); | |
367 | } | |
368 | } | |
369 | ||
53aa8c0e GH |
370 | /* Hand over a packet to a device for processing. Return value |
371 | USB_RET_ASYNC indicates the processing isn't finished yet, the | |
372 | driver will call usb_packet_complete() when done processing it. */ | |
373 | int usb_handle_packet(USBDevice *dev, USBPacket *p) | |
374 | { | |
375 | int ret; | |
376 | ||
98861f51 GH |
377 | if (dev == NULL) { |
378 | return USB_RET_NODEV; | |
379 | } | |
079d0b7f | 380 | assert(dev == p->ep->dev); |
1977f93d | 381 | assert(dev->state == USB_STATE_DEFAULT); |
5ac2731c | 382 | usb_packet_check_state(p, USB_PACKET_SETUP); |
db4be873 | 383 | assert(p->ep != NULL); |
1977f93d | 384 | |
0132b4b6 HG |
385 | /* Submitting a new packet clears halt */ |
386 | if (p->ep->halted) { | |
387 | assert(QTAILQ_EMPTY(&p->ep->queue)); | |
388 | p->ep->halted = false; | |
389 | } | |
390 | ||
7936e0f0 | 391 | if (QTAILQ_EMPTY(&p->ep->queue) || p->ep->pipeline) { |
db4be873 GH |
392 | ret = usb_process_one(p); |
393 | if (ret == USB_RET_ASYNC) { | |
394 | usb_packet_set_state(p, USB_PACKET_ASYNC); | |
395 | QTAILQ_INSERT_TAIL(&p->ep->queue, p, queue); | |
396 | } else { | |
0132b4b6 HG |
397 | /* |
398 | * When pipelining is enabled usb-devices must always return async, | |
399 | * otherwise packets can complete out of order! | |
400 | */ | |
401 | assert(!p->ep->pipeline); | |
cc409974 HG |
402 | if (ret != USB_RET_NAK) { |
403 | p->result = ret; | |
404 | usb_packet_set_state(p, USB_PACKET_COMPLETE); | |
405 | } | |
1977f93d GH |
406 | } |
407 | } else { | |
db4be873 GH |
408 | ret = USB_RET_ASYNC; |
409 | usb_packet_set_state(p, USB_PACKET_QUEUED); | |
410 | QTAILQ_INSERT_TAIL(&p->ep->queue, p, queue); | |
4ff658fb | 411 | } |
53aa8c0e | 412 | return ret; |
89b9b79f | 413 | } |
4ff658fb | 414 | |
0132b4b6 HG |
415 | static void __usb_packet_complete(USBDevice *dev, USBPacket *p) |
416 | { | |
417 | USBEndpoint *ep = p->ep; | |
418 | ||
419 | assert(p->result != USB_RET_ASYNC && p->result != USB_RET_NAK); | |
420 | ||
421 | if (p->result < 0) { | |
422 | ep->halted = true; | |
423 | } | |
424 | usb_packet_set_state(p, USB_PACKET_COMPLETE); | |
425 | QTAILQ_REMOVE(&ep->queue, p, queue); | |
426 | dev->port->ops->complete(dev->port, p); | |
427 | } | |
428 | ||
4ff658fb GH |
429 | /* Notify the controller that an async packet is complete. This should only |
430 | be called for packets previously deferred by returning USB_RET_ASYNC from | |
431 | handle_packet. */ | |
432 | void usb_packet_complete(USBDevice *dev, USBPacket *p) | |
433 | { | |
db4be873 GH |
434 | USBEndpoint *ep = p->ep; |
435 | int ret; | |
436 | ||
5ac2731c | 437 | usb_packet_check_state(p, USB_PACKET_ASYNC); |
db4be873 | 438 | assert(QTAILQ_FIRST(&ep->queue) == p); |
0132b4b6 | 439 | __usb_packet_complete(dev, p); |
db4be873 | 440 | |
0132b4b6 | 441 | while (!ep->halted && !QTAILQ_EMPTY(&ep->queue)) { |
db4be873 | 442 | p = QTAILQ_FIRST(&ep->queue); |
eb9d4673 GH |
443 | if (p->state == USB_PACKET_ASYNC) { |
444 | break; | |
445 | } | |
5ac2731c | 446 | usb_packet_check_state(p, USB_PACKET_QUEUED); |
db4be873 GH |
447 | ret = usb_process_one(p); |
448 | if (ret == USB_RET_ASYNC) { | |
449 | usb_packet_set_state(p, USB_PACKET_ASYNC); | |
450 | break; | |
451 | } | |
452 | p->result = ret; | |
0132b4b6 | 453 | __usb_packet_complete(ep->dev, p); |
db4be873 | 454 | } |
4ff658fb GH |
455 | } |
456 | ||
457 | /* Cancel an active packet. The packed must have been deferred by | |
458 | returning USB_RET_ASYNC from handle_packet, and not yet | |
459 | completed. */ | |
460 | void usb_cancel_packet(USBPacket * p) | |
461 | { | |
db4be873 GH |
462 | bool callback = (p->state == USB_PACKET_ASYNC); |
463 | assert(usb_packet_is_inflight(p)); | |
464 | usb_packet_set_state(p, USB_PACKET_CANCELED); | |
465 | QTAILQ_REMOVE(&p->ep->queue, p, queue); | |
466 | if (callback) { | |
467 | usb_device_cancel_packet(p->ep->dev, p); | |
468 | } | |
4ff658fb | 469 | } |
4f4321c1 GH |
470 | |
471 | ||
472 | void usb_packet_init(USBPacket *p) | |
473 | { | |
474 | qemu_iovec_init(&p->iov, 1); | |
475 | } | |
476 | ||
5ac2731c | 477 | static const char *usb_packet_state_name(USBPacketState state) |
db4be873 | 478 | { |
db4be873 GH |
479 | static const char *name[] = { |
480 | [USB_PACKET_UNDEFINED] = "undef", | |
481 | [USB_PACKET_SETUP] = "setup", | |
482 | [USB_PACKET_QUEUED] = "queued", | |
483 | [USB_PACKET_ASYNC] = "async", | |
484 | [USB_PACKET_COMPLETE] = "complete", | |
485 | [USB_PACKET_CANCELED] = "canceled", | |
486 | }; | |
5ac2731c GH |
487 | if (state < ARRAY_SIZE(name)) { |
488 | return name[state]; | |
489 | } | |
490 | return "INVALID"; | |
491 | } | |
492 | ||
493 | void usb_packet_check_state(USBPacket *p, USBPacketState expected) | |
494 | { | |
495 | USBDevice *dev; | |
496 | USBBus *bus; | |
497 | ||
498 | if (p->state == expected) { | |
499 | return; | |
500 | } | |
501 | dev = p->ep->dev; | |
502 | bus = usb_bus_from_device(dev); | |
503 | trace_usb_packet_state_fault(bus->busnr, dev->port->path, p->ep->nr, p, | |
504 | usb_packet_state_name(p->state), | |
505 | usb_packet_state_name(expected)); | |
506 | assert(!"usb packet state check failed"); | |
507 | } | |
508 | ||
509 | void usb_packet_set_state(USBPacket *p, USBPacketState state) | |
510 | { | |
f5bf14bf GH |
511 | if (p->ep) { |
512 | USBDevice *dev = p->ep->dev; | |
513 | USBBus *bus = usb_bus_from_device(dev); | |
514 | trace_usb_packet_state_change(bus->busnr, dev->port->path, p->ep->nr, p, | |
515 | usb_packet_state_name(p->state), | |
516 | usb_packet_state_name(state)); | |
517 | } else { | |
518 | trace_usb_packet_state_change(-1, "", -1, p, | |
519 | usb_packet_state_name(p->state), | |
520 | usb_packet_state_name(state)); | |
521 | } | |
db4be873 GH |
522 | p->state = state; |
523 | } | |
524 | ||
e983395d | 525 | void usb_packet_setup(USBPacket *p, int pid, USBEndpoint *ep, uint64_t id) |
4f4321c1 | 526 | { |
f53c398a | 527 | assert(!usb_packet_is_inflight(p)); |
0cc6a0f1 | 528 | assert(p->iov.iov != NULL); |
e983395d | 529 | p->id = id; |
4f4321c1 | 530 | p->pid = pid; |
079d0b7f | 531 | p->ep = ep; |
4f4321c1 | 532 | p->result = 0; |
1b4b29a1 | 533 | p->parameter = 0; |
4f4321c1 | 534 | qemu_iovec_reset(&p->iov); |
db4be873 | 535 | usb_packet_set_state(p, USB_PACKET_SETUP); |
4f4321c1 GH |
536 | } |
537 | ||
538 | void usb_packet_addbuf(USBPacket *p, void *ptr, size_t len) | |
539 | { | |
540 | qemu_iovec_add(&p->iov, ptr, len); | |
541 | } | |
542 | ||
543 | void usb_packet_copy(USBPacket *p, void *ptr, size_t bytes) | |
544 | { | |
545 | assert(p->result >= 0); | |
546 | assert(p->result + bytes <= p->iov.size); | |
547 | switch (p->pid) { | |
548 | case USB_TOKEN_SETUP: | |
549 | case USB_TOKEN_OUT: | |
dcf6f5e1 | 550 | iov_to_buf(p->iov.iov, p->iov.niov, p->result, ptr, bytes); |
4f4321c1 GH |
551 | break; |
552 | case USB_TOKEN_IN: | |
dcf6f5e1 | 553 | iov_from_buf(p->iov.iov, p->iov.niov, p->result, ptr, bytes); |
4f4321c1 GH |
554 | break; |
555 | default: | |
556 | fprintf(stderr, "%s: invalid pid: %x\n", __func__, p->pid); | |
557 | abort(); | |
558 | } | |
559 | p->result += bytes; | |
560 | } | |
561 | ||
562 | void usb_packet_skip(USBPacket *p, size_t bytes) | |
563 | { | |
564 | assert(p->result >= 0); | |
565 | assert(p->result + bytes <= p->iov.size); | |
566 | if (p->pid == USB_TOKEN_IN) { | |
dcf6f5e1 | 567 | iov_memset(p->iov.iov, p->iov.niov, p->result, 0, bytes); |
4f4321c1 GH |
568 | } |
569 | p->result += bytes; | |
570 | } | |
571 | ||
572 | void usb_packet_cleanup(USBPacket *p) | |
573 | { | |
f53c398a | 574 | assert(!usb_packet_is_inflight(p)); |
4f4321c1 GH |
575 | qemu_iovec_destroy(&p->iov); |
576 | } | |
d8e17efd | 577 | |
19deaa08 | 578 | void usb_ep_reset(USBDevice *dev) |
d8e17efd GH |
579 | { |
580 | int ep; | |
581 | ||
63095ab5 | 582 | dev->ep_ctl.nr = 0; |
25d5de7d GH |
583 | dev->ep_ctl.type = USB_ENDPOINT_XFER_CONTROL; |
584 | dev->ep_ctl.ifnum = 0; | |
585 | dev->ep_ctl.dev = dev; | |
7936e0f0 | 586 | dev->ep_ctl.pipeline = false; |
d8e17efd | 587 | for (ep = 0; ep < USB_MAX_ENDPOINTS; ep++) { |
63095ab5 GH |
588 | dev->ep_in[ep].nr = ep + 1; |
589 | dev->ep_out[ep].nr = ep + 1; | |
590 | dev->ep_in[ep].pid = USB_TOKEN_IN; | |
591 | dev->ep_out[ep].pid = USB_TOKEN_OUT; | |
d8e17efd GH |
592 | dev->ep_in[ep].type = USB_ENDPOINT_XFER_INVALID; |
593 | dev->ep_out[ep].type = USB_ENDPOINT_XFER_INVALID; | |
7c37e6a4 GH |
594 | dev->ep_in[ep].ifnum = USB_INTERFACE_INVALID; |
595 | dev->ep_out[ep].ifnum = USB_INTERFACE_INVALID; | |
25d5de7d GH |
596 | dev->ep_in[ep].dev = dev; |
597 | dev->ep_out[ep].dev = dev; | |
7936e0f0 GH |
598 | dev->ep_in[ep].pipeline = false; |
599 | dev->ep_out[ep].pipeline = false; | |
19deaa08 GH |
600 | } |
601 | } | |
602 | ||
603 | void usb_ep_init(USBDevice *dev) | |
604 | { | |
605 | int ep; | |
606 | ||
607 | usb_ep_reset(dev); | |
608 | QTAILQ_INIT(&dev->ep_ctl.queue); | |
609 | for (ep = 0; ep < USB_MAX_ENDPOINTS; ep++) { | |
db4be873 GH |
610 | QTAILQ_INIT(&dev->ep_in[ep].queue); |
611 | QTAILQ_INIT(&dev->ep_out[ep].queue); | |
d8e17efd GH |
612 | } |
613 | } | |
614 | ||
5b6780d0 GH |
615 | void usb_ep_dump(USBDevice *dev) |
616 | { | |
617 | static const char *tname[] = { | |
618 | [USB_ENDPOINT_XFER_CONTROL] = "control", | |
619 | [USB_ENDPOINT_XFER_ISOC] = "isoc", | |
620 | [USB_ENDPOINT_XFER_BULK] = "bulk", | |
621 | [USB_ENDPOINT_XFER_INT] = "int", | |
622 | }; | |
623 | int ifnum, ep, first; | |
624 | ||
625 | fprintf(stderr, "Device \"%s\", config %d\n", | |
626 | dev->product_desc, dev->configuration); | |
627 | for (ifnum = 0; ifnum < 16; ifnum++) { | |
628 | first = 1; | |
629 | for (ep = 0; ep < USB_MAX_ENDPOINTS; ep++) { | |
630 | if (dev->ep_in[ep].type != USB_ENDPOINT_XFER_INVALID && | |
631 | dev->ep_in[ep].ifnum == ifnum) { | |
632 | if (first) { | |
633 | first = 0; | |
634 | fprintf(stderr, " Interface %d, alternative %d\n", | |
635 | ifnum, dev->altsetting[ifnum]); | |
636 | } | |
f003397c GH |
637 | fprintf(stderr, " Endpoint %d, IN, %s, %d max\n", ep, |
638 | tname[dev->ep_in[ep].type], | |
639 | dev->ep_in[ep].max_packet_size); | |
5b6780d0 GH |
640 | } |
641 | if (dev->ep_out[ep].type != USB_ENDPOINT_XFER_INVALID && | |
642 | dev->ep_out[ep].ifnum == ifnum) { | |
643 | if (first) { | |
644 | first = 0; | |
645 | fprintf(stderr, " Interface %d, alternative %d\n", | |
646 | ifnum, dev->altsetting[ifnum]); | |
647 | } | |
f003397c GH |
648 | fprintf(stderr, " Endpoint %d, OUT, %s, %d max\n", ep, |
649 | tname[dev->ep_out[ep].type], | |
650 | dev->ep_out[ep].max_packet_size); | |
5b6780d0 GH |
651 | } |
652 | } | |
653 | } | |
654 | fprintf(stderr, "--\n"); | |
655 | } | |
656 | ||
d8e17efd GH |
657 | struct USBEndpoint *usb_ep_get(USBDevice *dev, int pid, int ep) |
658 | { | |
079d0b7f GH |
659 | struct USBEndpoint *eps; |
660 | ||
661 | if (dev == NULL) { | |
662 | return NULL; | |
663 | } | |
664 | eps = (pid == USB_TOKEN_IN) ? dev->ep_in : dev->ep_out; | |
25d5de7d GH |
665 | if (ep == 0) { |
666 | return &dev->ep_ctl; | |
667 | } | |
d8e17efd GH |
668 | assert(pid == USB_TOKEN_IN || pid == USB_TOKEN_OUT); |
669 | assert(ep > 0 && ep <= USB_MAX_ENDPOINTS); | |
670 | return eps + ep - 1; | |
671 | } | |
672 | ||
673 | uint8_t usb_ep_get_type(USBDevice *dev, int pid, int ep) | |
674 | { | |
675 | struct USBEndpoint *uep = usb_ep_get(dev, pid, ep); | |
676 | return uep->type; | |
677 | } | |
678 | ||
679 | void usb_ep_set_type(USBDevice *dev, int pid, int ep, uint8_t type) | |
680 | { | |
681 | struct USBEndpoint *uep = usb_ep_get(dev, pid, ep); | |
682 | uep->type = type; | |
683 | } | |
82f02fe9 GH |
684 | |
685 | uint8_t usb_ep_get_ifnum(USBDevice *dev, int pid, int ep) | |
686 | { | |
687 | struct USBEndpoint *uep = usb_ep_get(dev, pid, ep); | |
688 | return uep->ifnum; | |
689 | } | |
690 | ||
691 | void usb_ep_set_ifnum(USBDevice *dev, int pid, int ep, uint8_t ifnum) | |
692 | { | |
693 | struct USBEndpoint *uep = usb_ep_get(dev, pid, ep); | |
694 | uep->ifnum = ifnum; | |
695 | } | |
f003397c GH |
696 | |
697 | void usb_ep_set_max_packet_size(USBDevice *dev, int pid, int ep, | |
698 | uint16_t raw) | |
699 | { | |
700 | struct USBEndpoint *uep = usb_ep_get(dev, pid, ep); | |
701 | int size, microframes; | |
702 | ||
703 | size = raw & 0x7ff; | |
704 | switch ((raw >> 11) & 3) { | |
705 | case 1: | |
706 | microframes = 2; | |
707 | break; | |
708 | case 2: | |
709 | microframes = 3; | |
710 | break; | |
711 | default: | |
712 | microframes = 1; | |
713 | break; | |
714 | } | |
715 | uep->max_packet_size = size * microframes; | |
716 | } | |
717 | ||
718 | int usb_ep_get_max_packet_size(USBDevice *dev, int pid, int ep) | |
719 | { | |
720 | struct USBEndpoint *uep = usb_ep_get(dev, pid, ep); | |
721 | return uep->max_packet_size; | |
722 | } | |
7936e0f0 GH |
723 | |
724 | void usb_ep_set_pipeline(USBDevice *dev, int pid, int ep, bool enabled) | |
725 | { | |
726 | struct USBEndpoint *uep = usb_ep_get(dev, pid, ep); | |
727 | uep->pipeline = enabled; | |
728 | } | |
c13a9e61 HG |
729 | |
730 | USBPacket *usb_ep_find_packet_by_id(USBDevice *dev, int pid, int ep, | |
731 | uint64_t id) | |
732 | { | |
733 | struct USBEndpoint *uep = usb_ep_get(dev, pid, ep); | |
734 | USBPacket *p; | |
735 | ||
736 | while ((p = QTAILQ_FIRST(&uep->queue)) != NULL) { | |
737 | if (p->id == id) { | |
738 | return p; | |
739 | } | |
740 | } | |
741 | ||
742 | return NULL; | |
743 | } |