source: mainline/uspace/drv/bus/usb/ehci/ehci_rh.c@ c10daa8

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since c10daa8 was 741bcdeb, checked in by Ondřej Hlavatý <aearsis@…>, 8 years ago

WIP usbhost refactoring: ehci completed

vhc to go…
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1/*
2 * Copyright (c) 2013 Jan Vesely
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28/** @addtogroup drvusbehci
29 * @{
30 */
31/** @file
32 * @brief EHCI driver
33 */
34
35#include <assert.h>
36#include <errno.h>
37#include <mem.h>
38#include <str_error.h>
39#include <stdint.h>
40#include <stddef.h>
41
42#include <usb/classes/hub.h>
43#include <usb/debug.h>
44#include <usb/descriptor.h>
45#include <usb/request.h>
46#include <usb/usb.h>
47
48#include <usb/host/endpoint.h>
49#include <usbvirt/device.h>
50
51#include "ehci_rh.h"
52
53enum {
54 HUB_STATUS_CHANGE_PIPE = 1,
55};
56
57static usbvirt_device_ops_t ops;
58
59/** Initialize internal USB HUB class descriptor.
60 * @param instance EHCI root hub.
61 * Use register based info to create accurate descriptor.
62 */
63static void ehci_rh_hub_desc_init(ehci_rh_t *instance, unsigned hcs)
64{
65 assert(instance);
66 const unsigned dsize = sizeof(usb_hub_descriptor_header_t) +
67 STATUS_BYTES(instance->port_count) * 2;
68 assert(dsize <= sizeof(instance->hub_descriptor));
69
70 instance->hub_descriptor.header.length = dsize;
71 instance->hub_descriptor.header.descriptor_type = USB_DESCTYPE_HUB;
72 instance->hub_descriptor.header.port_count = instance->port_count;
73 /* Bits 0,1 indicate power switching mode
74 * Bit 2 indicates device type (compound device)
75 * Bits 3,4 indicate over-current protection mode */
76 instance->hub_descriptor.header.characteristics = 0 |
77 ((hcs & EHCI_CAPS_HCS_PPC_FLAG) ? 0x09 : 0x12) |
78 ((hcs & EHCI_CAPS_HCS_INDICATORS_FLAG) ? 0x80 : 0) |
79 (0x3 << 5); /* Need 32 FS bit times */ // TODO Implement
80 instance->hub_descriptor.header.characteristics_reserved = 0;
81 instance->hub_descriptor.header.power_good_time = 50;
82 /* bHubContrCurrent, root hubs don't need no power. */
83 instance->hub_descriptor.header.max_current = 0;
84
85 /* Device removable and some legacy 1.0 stuff*/
86 instance->hub_descriptor.rempow[0] = 0xff;
87 instance->hub_descriptor.rempow[1] = 0xff;
88 instance->hub_descriptor.rempow[2] = 0xff;
89 instance->hub_descriptor.rempow[3] = 0xff;
90
91}
92/** Initialize EHCI root hub.
93 * @param instance Place to initialize.
94 * @param regs EHCI device registers.
95 * @param name Device name.
96 * return Error code, EOK on success.
97 *
98 * Selects preconfigured port powering mode, sets up descriptor, and
99 * initializes internal virtual hub.
100 */
101int ehci_rh_init(ehci_rh_t *instance, ehci_caps_regs_t *caps, ehci_regs_t *regs,
102 const char *name)
103{
104 assert(instance);
105 instance->registers = regs;
106 instance->port_count =
107 (EHCI_RD(caps->hcsparams) >> EHCI_CAPS_HCS_N_PORTS_SHIFT) &
108 EHCI_CAPS_HCS_N_PORTS_MASK;
109 usb_log_debug2("RH(%p): hcsparams: %x.\n", instance,
110 EHCI_RD(caps->hcsparams));
111 usb_log_info("RH(%p): Found %u ports.\n", instance,
112 instance->port_count);
113
114 if (EHCI_RD(caps->hcsparams) & EHCI_CAPS_HCS_PPC_FLAG) {
115 usb_log_info("RH(%p): Per-port power switching.", instance);
116 } else {
117 usb_log_info("RH(%p): No power switching.", instance);
118 }
119 for (unsigned i = 0; i < instance->port_count; ++i)
120 usb_log_debug2("RH(%p-%u): status: %"PRIx32, instance, i,
121 EHCI_RD(regs->portsc[i]));
122
123 for (unsigned i = 0; i < EHCI_MAX_PORTS; ++i) {
124 instance->reset_flag[i] = false;
125 instance->resume_flag[i] = false;
126 }
127
128 ehci_rh_hub_desc_init(instance, EHCI_RD(caps->hcsparams));
129 instance->unfinished_interrupt_transfer = NULL;
130
131 return virthub_base_init(&instance->base, name, &ops, instance,
132 NULL, &instance->hub_descriptor.header, HUB_STATUS_CHANGE_PIPE);
133}
134
135/** Schedule USB request.
136 * @param instance OCHI root hub instance.
137 * @param batch USB requst batch to schedule.
138 * @return Always EOK.
139 * Most requests complete even before this function returns,
140 * status change requests might be postponed until there is something to report.
141 */
142int ehci_rh_schedule(ehci_rh_t *instance, usb_transfer_batch_t *batch)
143{
144 assert(instance);
145 assert(batch);
146 const usb_target_t target = batch->ep->target;
147 batch->error = virthub_base_request(&instance->base, target,
148 usb_transfer_batch_direction(batch), (void*)batch->setup_buffer,
149 batch->buffer, batch->buffer_size, &batch->transfered_size);
150 if (batch->error == ENAK) {
151 usb_log_debug("RH(%p): BATCH(%p) adding as unfinished",
152 instance, batch);
153 /* This is safe because only status change interrupt transfers
154 * return NAK. The assertion holds true because the batch
155 * existence prevents communication with that ep */
156 assert(instance->unfinished_interrupt_transfer == NULL);
157 instance->unfinished_interrupt_transfer = batch;
158 } else {
159 usb_transfer_batch_finish(batch, NULL);
160 usb_transfer_batch_destroy(batch);
161 usb_log_debug("RH(%p): BATCH(%p) virtual request complete: %s",
162 instance, batch, str_error(batch->error));
163 }
164 return EOK;
165}
166
167/** Handle EHCI RHSC interrupt.
168 * @param instance EHCI root hub isntance.
169 * @return Always EOK.
170 *
171 * Interrupt means there is a change of status to report. It may trigger
172 * processing of a postponed request.
173 */
174int ehci_rh_interrupt(ehci_rh_t *instance)
175{
176 //TODO atomic swap needed
177 usb_transfer_batch_t *batch = instance->unfinished_interrupt_transfer;
178 instance->unfinished_interrupt_transfer = NULL;
179 usb_log_debug2("RH(%p): Interrupt. Processing batch: %p",
180 instance, batch);
181 if (batch) {
182 const usb_target_t target = batch->ep->target;
183 batch->error = virthub_base_request(&instance->base, target,
184 usb_transfer_batch_direction(batch),
185 (void*)batch->setup_buffer,
186 batch->buffer, batch->buffer_size, &batch->transfered_size);
187 usb_transfer_batch_finish(batch, NULL);
188 usb_transfer_batch_destroy(batch);
189 }
190 return EOK;
191}
192
193/* HUB ROUTINES IMPLEMENTATION */
194#define TEST_SIZE_INIT(size, port, hub) \
195do { \
196 hub = virthub_get_data(device); \
197 assert(hub);\
198 if (uint16_usb2host(setup_packet->length) != size) \
199 return ESTALL; \
200 port = uint16_usb2host(setup_packet->index) - 1; \
201 if (port > hub->port_count) \
202 return EINVAL; \
203} while (0)
204
205/** Hub status request handler.
206 * @param device Virtual hub device
207 * @param setup_packet USB setup stage data.
208 * @param[out] data destination data buffer, size must be at least
209 * setup_packet->length bytes
210 * @param[out] act_size Sized of the valid response part of the buffer.
211 * @return Error code.
212 */
213static int req_get_status(usbvirt_device_t *device,
214 const usb_device_request_setup_packet_t *setup_packet,
215 uint8_t *data, size_t *act_size)
216{
217 ehci_rh_t *hub = virthub_get_data(device);
218 assert(hub);
219 if (uint16_usb2host(setup_packet->length) != 4)
220 return ESTALL;
221 /* ECHI RH does not report global OC, and local power is always good */
222 const uint32_t val = 0;
223 memcpy(data, &val, sizeof(val));
224 *act_size = sizeof(val);
225 return EOK;
226}
227
228/** Hub set feature request handler.
229 * @param device Virtual hub device
230 * @param setup_packet USB setup stage data.
231 * @param[out] data destination data buffer, size must be at least
232 * setup_packet->length bytes
233 * @param[out] act_size Sized of the valid response part of the buffer.
234 * @return Error code.
235 */
236static int req_clear_hub_feature(usbvirt_device_t *device,
237 const usb_device_request_setup_packet_t *setup_packet,
238 uint8_t *data, size_t *act_size)
239{
240 ehci_rh_t *hub = virthub_get_data(device);
241 assert(hub);
242
243 /*
244 * Chapter 11.16.2 specifies that only C_HUB_LOCAL_POWER and
245 * C_HUB_OVER_CURRENT are supported.
246 * C_HUB_LOCAL_POWER is not supported because root hubs do not support
247 * local power status feature.
248 * EHCI RH does not report global OC condition either
249 */
250 return ESTALL;
251}
252
253#define BIT_VAL(val, bit) ((val & bit) ? 1 : 0)
254#define EHCI2USB(val, bit, feat) (BIT_VAL(val, bit) << feat)
255
256/** Port status request handler.
257 * @param device Virtual hub device
258 * @param setup_packet USB setup stage data.
259 * @param[out] data destination data buffer, size must be at least
260 * setup_packet->length bytes
261 * @param[out] act_size Sized of the valid response part of the buffer.
262 * @return Error code.
263 */
264static int req_get_port_status(usbvirt_device_t *device,
265 const usb_device_request_setup_packet_t *setup_packet,
266 uint8_t *data, size_t *act_size)
267{
268 ehci_rh_t *hub;
269 unsigned port;
270 TEST_SIZE_INIT(4, port, hub);
271 if (setup_packet->value != 0)
272 return EINVAL;
273
274 const uint32_t reg = EHCI_RD(hub->registers->portsc[port]);
275 const uint32_t status = uint32_host2usb(
276 EHCI2USB(reg, USB_PORTSC_CONNECT_FLAG, USB_HUB_FEATURE_PORT_CONNECTION) |
277 EHCI2USB(reg, USB_PORTSC_ENABLED_FLAG, USB_HUB_FEATURE_PORT_ENABLE) |
278 EHCI2USB(reg, USB_PORTSC_SUSPEND_FLAG, USB_HUB_FEATURE_PORT_SUSPEND) |
279 EHCI2USB(reg, USB_PORTSC_OC_ACTIVE_FLAG, USB_HUB_FEATURE_PORT_OVER_CURRENT) |
280 EHCI2USB(reg, USB_PORTSC_PORT_RESET_FLAG, USB_HUB_FEATURE_PORT_RESET) |
281 EHCI2USB(reg, USB_PORTSC_PORT_POWER_FLAG, USB_HUB_FEATURE_PORT_POWER) |
282 (((reg & USB_PORTSC_LINE_STATUS_MASK) == USB_PORTSC_LINE_STATUS_K) ?
283 (1 << USB_HUB_FEATURE_PORT_LOW_SPEED) : 0) |
284 ((reg & USB_PORTSC_PORT_OWNER_FLAG) ? 0 : (1 << USB_HUB_FEATURE_PORT_HIGH_SPEED)) |
285 EHCI2USB(reg, USB_PORTSC_PORT_TEST_MASK, 11) |
286 EHCI2USB(reg, USB_PORTSC_INDICATOR_MASK, 12) |
287 EHCI2USB(reg, USB_PORTSC_CONNECT_CH_FLAG, USB_HUB_FEATURE_C_PORT_CONNECTION) |
288 EHCI2USB(reg, USB_PORTSC_EN_CHANGE_FLAG, USB_HUB_FEATURE_C_PORT_ENABLE) |
289 (hub->resume_flag[port] ? (1 << USB_HUB_FEATURE_C_PORT_SUSPEND) : 0) |
290 EHCI2USB(reg, USB_PORTSC_OC_CHANGE_FLAG, USB_HUB_FEATURE_C_PORT_OVER_CURRENT) |
291 (hub->reset_flag[port] ? (1 << USB_HUB_FEATURE_C_PORT_RESET): 0)
292 );
293 /* Note feature numbers for test and indicator feature do not
294 * correspond to the port status bit locations */
295 usb_log_debug2("RH(%p-%u) port status: %"PRIx32"(%"PRIx32")", hub, port,
296 status, reg);
297 memcpy(data, &status, sizeof(status));
298 *act_size = sizeof(status);
299 return EOK;
300}
301
302typedef struct {
303 ehci_rh_t *hub;
304 unsigned port;
305} ehci_rh_job_t;
306
307static int stop_reset(void *arg)
308{
309 ehci_rh_job_t *job = arg;
310 async_usleep(50000);
311 usb_log_debug("RH(%p-%u): Clearing reset", job->hub, job->port);
312 EHCI_CLR(job->hub->registers->portsc[job->port],
313 USB_PORTSC_PORT_RESET_FLAG);
314 /* wait for reset to complete */
315 while (EHCI_RD(job->hub->registers->portsc[job->port]) &
316 USB_PORTSC_PORT_RESET_FLAG) {
317 async_usleep(1);
318 };
319 usb_log_debug("RH(%p-%u): Reset complete", job->hub, job->port);
320 /* Handle port ownership, if the port is not enabled
321 * after reset it's a full speed device */
322 if (!(EHCI_RD(job->hub->registers->portsc[job->port]) &
323 USB_PORTSC_ENABLED_FLAG)) {
324 usb_log_info("RH(%p-%u): Port not enabled after reset (%"PRIX32
325 "), giving up ownership", job->hub, job->port,
326 EHCI_RD(job->hub->registers->portsc[job->port]));
327 EHCI_SET(job->hub->registers->portsc[job->port],
328 USB_PORTSC_PORT_OWNER_FLAG);
329 }
330 job->hub->reset_flag[job->port] = true;
331 ehci_rh_interrupt(job->hub);
332 free(job);
333 return 0;
334}
335
336static int stop_resume(void *arg)
337{
338 ehci_rh_job_t *job = arg;
339 async_usleep(20000);
340 usb_log_debug("RH(%p-%u): Stopping resume", job->hub, job->port);
341 EHCI_CLR(job->hub->registers->portsc[job->port],
342 USB_PORTSC_RESUME_FLAG);
343 job->hub->resume_flag[job->port] = true;
344 ehci_rh_interrupt(job->hub);
345 free(job);
346 return 0;
347}
348
349static int delayed_job(int (*func)(void*), ehci_rh_t *rh, unsigned port)
350{
351 ehci_rh_job_t *job = malloc(sizeof(*job));
352 if (!job)
353 return ENOMEM;
354 job->hub = rh;
355 job->port = port;
356 fid_t fib = fibril_create(func, job);
357 if (!fib) {
358 free(job);
359 return ENOMEM;
360 }
361 fibril_add_ready(fib);
362 usb_log_debug2("RH(%p-%u): Scheduled delayed stop job.", rh, port);
363 return EOK;
364}
365
366
367/** Port clear feature request handler.
368 * @param device Virtual hub device
369 * @param setup_packet USB setup stage data.
370 * @param[out] data destination data buffer, size must be at least
371 * setup_packet->length bytes
372 * @param[out] act_size Sized of the valid response part of the buffer.
373 * @return Error code.
374 */
375static int req_clear_port_feature(usbvirt_device_t *device,
376 const usb_device_request_setup_packet_t *setup_packet,
377 uint8_t *data, size_t *act_size)
378{
379 ehci_rh_t *hub;
380 unsigned port;
381 TEST_SIZE_INIT(0, port, hub);
382 const unsigned feature = uint16_usb2host(setup_packet->value);
383 /* Enabled features to clear: see page 269 of USB specs */
384 switch (feature)
385 {
386 case USB_HUB_FEATURE_PORT_POWER: /*8*/
387 usb_log_debug2("RH(%p-%u): Clear port power.", hub, port);
388 EHCI_CLR(hub->registers->portsc[port],
389 USB_PORTSC_PORT_POWER_FLAG);
390 return EOK;
391
392 case USB_HUB_FEATURE_PORT_ENABLE: /*1*/
393 usb_log_debug2("RH(%p-%u): Clear port enable.", hub, port);
394 EHCI_CLR(hub->registers->portsc[port],
395 USB_PORTSC_ENABLED_FLAG);
396 return EOK;
397
398 case USB_HUB_FEATURE_PORT_SUSPEND: /*2*/
399 usb_log_debug2("RH(%p-%u): Clear port suspend.", hub, port);
400 /* If not in suspend it's noop */
401 if ((EHCI_RD(hub->registers->portsc[port]) &
402 USB_PORTSC_SUSPEND_FLAG) == 0)
403 return EOK;
404 /* Host driven resume */
405 EHCI_SET(hub->registers->portsc[port],
406 USB_PORTSC_RESUME_FLAG);
407 //TODO: What if creating the delayed job fails?
408 return delayed_job(stop_resume, hub, port);
409
410 case USB_HUB_FEATURE_C_PORT_CONNECTION: /*16*/
411 usb_log_debug2("RH(%p-%u): Clear port connection change.",
412 hub, port);
413 EHCI_SET(hub->registers->portsc[port],
414 USB_PORTSC_CONNECT_CH_FLAG);
415 return EOK;
416 case USB_HUB_FEATURE_C_PORT_ENABLE: /*17*/
417 usb_log_debug2("RH(%p-%u): Clear port enable change.",
418 hub, port);
419 EHCI_SET(hub->registers->portsc[port],
420 USB_PORTSC_CONNECT_CH_FLAG);
421 return EOK;
422 case USB_HUB_FEATURE_C_PORT_OVER_CURRENT: /*19*/
423 usb_log_debug2("RH(%p-%u): Clear port OC change.",
424 hub, port);
425 EHCI_SET(hub->registers->portsc[port],
426 USB_PORTSC_OC_CHANGE_FLAG);
427 return EOK;
428 case USB_HUB_FEATURE_C_PORT_SUSPEND: /*18*/
429 usb_log_debug2("RH(%p-%u): Clear port suspend change.",
430 hub, port);
431 hub->resume_flag[port] = false;
432 return EOK;
433 case USB_HUB_FEATURE_C_PORT_RESET: /*20*/
434 usb_log_debug2("RH(%p-%u): Clear port reset change.",
435 hub, port);
436 hub->reset_flag[port] = false;
437 return EOK;
438
439 default:
440 usb_log_warning("RH(%p-%u): Clear unknown feature: %u",
441 hub, port, feature);
442 return ENOTSUP;
443 }
444}
445
446/** Port set feature request handler.
447 * @param device Virtual hub device
448 * @param setup_packet USB setup stage data.
449 * @param[out] data destination data buffer, size must be at least
450 * setup_packet->length bytes
451 * @param[out] act_size Sized of the valid response part of the buffer.
452 * @return Error code.
453 */
454static int req_set_port_feature(usbvirt_device_t *device,
455 const usb_device_request_setup_packet_t *setup_packet,
456 uint8_t *data, size_t *act_size)
457{
458 ehci_rh_t *hub;
459 unsigned port;
460 TEST_SIZE_INIT(0, port, hub);
461 const unsigned feature = uint16_usb2host(setup_packet->value);
462 switch (feature) {
463 case USB_HUB_FEATURE_PORT_ENABLE: /*1*/
464 usb_log_debug2("RH(%p-%u): Set port enable.", hub, port);
465 EHCI_SET(hub->registers->portsc[port],
466 USB_PORTSC_ENABLED_FLAG);
467 return EOK;
468 case USB_HUB_FEATURE_PORT_SUSPEND: /*2*/
469 usb_log_debug2("RH(%p-%u): Set port suspend.", hub, port);
470 EHCI_SET(hub->registers->portsc[port],
471 USB_PORTSC_SUSPEND_FLAG);
472 return EOK;
473 case USB_HUB_FEATURE_PORT_RESET: /*4*/
474 usb_log_debug2("RH(%p-%u): Set port reset.", hub, port);
475 EHCI_SET(hub->registers->portsc[port],
476 USB_PORTSC_PORT_RESET_FLAG);
477 //TODO: What if creating the delayed job fails?
478 return delayed_job(stop_reset, hub, port);
479 case USB_HUB_FEATURE_PORT_POWER: /*8*/
480 usb_log_debug2("RH(%p-%u): Set port power.", hub, port);
481 EHCI_SET(hub->registers->portsc[port],
482 USB_PORTSC_PORT_POWER_FLAG);
483 return EOK;
484 default:
485 usb_log_warning("RH(%p-%u): Set unknown feature: %u",
486 hub, port, feature);
487 return ENOTSUP;
488 }
489}
490
491/** Status change handler.
492 * @param device Virtual hub device
493 * @param endpoint Endpoint number
494 * @param tr_type Transfer type
495 * @param buffer Response destination
496 * @param buffer_size Bytes available in buffer
497 * @param actual_size Size us the used part of the dest buffer.
498 *
499 * Produces status mask. Bit 0 indicates hub status change the other bits
500 * represent port status change. Endian does not matter as UHCI root hubs
501 * only need 1 byte.
502 */
503static int req_status_change_handler(usbvirt_device_t *device,
504 usb_endpoint_t endpoint, usb_transfer_type_t tr_type,
505 void *buffer, size_t buffer_size, size_t *actual_size)
506{
507 ehci_rh_t *hub = virthub_get_data(device);
508 assert(hub);
509
510 if (buffer_size < STATUS_BYTES(hub->port_count))
511 return ESTALL;
512
513 uint16_t mask = 0;
514 for (unsigned port = 0; port < hub->port_count; ++port) {
515 /* Write-clean bits are those that indicate change */
516 uint32_t status = EHCI_RD(hub->registers->portsc[port]);
517 if ((status & USB_PORTSC_WC_MASK) || hub->reset_flag[port]) {
518 /* Ignore new LS device */
519 if ((status & USB_PORTSC_CONNECT_CH_FLAG) &&
520 (status & USB_PORTSC_LINE_STATUS_MASK) ==
521 USB_PORTSC_LINE_STATUS_K)
522 EHCI_SET(hub->registers->portsc[port],
523 USB_PORTSC_PORT_OWNER_FLAG);
524 else
525 mask |= (2 << port);
526 }
527 }
528
529 usb_log_debug2("RH(%p): root hub interrupt mask: %"PRIx16, hub, mask);
530
531 if (mask == 0)
532 return ENAK;
533 mask = uint16_host2usb(mask);
534 memcpy(buffer, &mask, STATUS_BYTES(hub->port_count));
535 *actual_size = STATUS_BYTES(hub->port_count);
536 return EOK;
537}
538
539/** EHCI root hub request handlers */
540static const usbvirt_control_request_handler_t control_transfer_handlers[] = {
541 {
542 STD_REQ_IN(USB_REQUEST_RECIPIENT_DEVICE, USB_DEVREQ_GET_DESCRIPTOR),
543 .name = "GetDescriptor",
544 .callback = virthub_base_get_hub_descriptor,
545 },
546 {
547 CLASS_REQ_IN(USB_REQUEST_RECIPIENT_DEVICE, USB_DEVREQ_GET_DESCRIPTOR),
548 .name = "GetDescriptor",
549 .callback = virthub_base_get_hub_descriptor,
550 },
551 {
552 CLASS_REQ_IN(USB_REQUEST_RECIPIENT_DEVICE, USB_HUB_REQUEST_GET_DESCRIPTOR),
553 .name = "GetHubDescriptor",
554 .callback = virthub_base_get_hub_descriptor,
555 },
556 {
557 CLASS_REQ_IN(USB_REQUEST_RECIPIENT_OTHER, USB_HUB_REQUEST_GET_STATUS),
558 .name = "GetPortStatus",
559 .callback = req_get_port_status,
560 },
561 {
562 CLASS_REQ_OUT(USB_REQUEST_RECIPIENT_DEVICE, USB_HUB_REQUEST_CLEAR_FEATURE),
563 .name = "ClearHubFeature",
564 .callback = req_clear_hub_feature,
565 },
566 {
567 CLASS_REQ_OUT(USB_REQUEST_RECIPIENT_OTHER, USB_HUB_REQUEST_CLEAR_FEATURE),
568 .name = "ClearPortFeature",
569 .callback = req_clear_port_feature,
570 },
571 {
572 CLASS_REQ_IN(USB_REQUEST_RECIPIENT_DEVICE, USB_HUB_REQUEST_GET_STATUS),
573 .name = "GetHubStatus",
574 .callback = req_get_status,
575 },
576 {
577 CLASS_REQ_IN(USB_REQUEST_RECIPIENT_OTHER, USB_HUB_REQUEST_GET_STATUS),
578 .name = "GetPortStatus",
579 .callback = req_get_port_status,
580 },
581 {
582 CLASS_REQ_OUT(USB_REQUEST_RECIPIENT_DEVICE, USB_HUB_REQUEST_SET_FEATURE),
583 .name = "SetHubFeature",
584 .callback = req_nop,
585 },
586 {
587 CLASS_REQ_OUT(USB_REQUEST_RECIPIENT_OTHER, USB_HUB_REQUEST_SET_FEATURE),
588 .name = "SetPortFeature",
589 .callback = req_set_port_feature,
590 },
591 {
592 .callback = NULL
593 }
594};
595
596/** Virtual EHCI root hub ops */
597static usbvirt_device_ops_t ops = {
598 .control = control_transfer_handlers,
599 .data_in[HUB_STATUS_CHANGE_PIPE] = req_status_change_handler,
600};
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