source: mainline/uspace/drv/usbhub/usbhub.c@ eae83aa

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since eae83aa was 4e900c1, checked in by Jan Vesely <jano.vesely@…>, 15 years ago

Use set configuration before getting class descriptor

Tested and works on nb internal usb hub (enables communication to the device)
  • Property mode set to 100644
File size: 20.2 KB
Line 
1/*
2 * Copyright (c) 2010 Matus Dekanek
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 drvusbhub
29 * @{
30 */
31/** @file
32 * @brief usb hub main functionality
33 */
34
35#include <ddf/driver.h>
36#include <bool.h>
37#include <errno.h>
38#include <str_error.h>
39
40#include <usb_iface.h>
41#include <usb/ddfiface.h>
42#include <usb/descriptor.h>
43#include <usb/recognise.h>
44#include <usb/request.h>
45#include <usb/classes/hub.h>
46#include <stdio.h>
47
48#include "usbhub.h"
49#include "usbhub_private.h"
50#include "port_status.h"
51#include "usb/usb.h"
52#include "usb/pipes.h"
53#include "usb/classes/classes.h"
54
55static ddf_dev_ops_t hub_device_ops = {
56 .interfaces[USB_DEV_IFACE] = &usb_iface_hub_impl
57};
58
59/** Hub status-change endpoint description
60 *
61 * For more see usb hub specification in 11.15.1 of
62 */
63static usb_endpoint_description_t status_change_endpoint_description = {
64 .transfer_type = USB_TRANSFER_INTERRUPT,
65 .direction = USB_DIRECTION_IN,
66 .interface_class = USB_CLASS_HUB,
67 .interface_subclass = 0,
68 .interface_protocol = 0,
69 .flags = 0
70};
71
72int usb_hub_control_loop(void * hub_info_param){
73 usb_hub_info_t * hub_info = (usb_hub_info_t*)hub_info_param;
74 while(true){
75 usb_hub_check_hub_changes(hub_info);
76 async_usleep(1000 * 1000 );/// \TODO proper number once
77 }
78 return 0;
79}
80
81
82//*********************************************
83//
84// hub driver code, initialization
85//
86//*********************************************
87
88/**
89 * Initialize connnections to host controller, device, and device
90 * control endpoint
91 * @param hub
92 * @param device
93 * @return
94 */
95static int usb_hub_init_communication(usb_hub_info_t * hub){
96 usb_log_debug("Initializing hub USB communication (hub->device->handle=%zu).\n", hub->device->handle);
97 int opResult;
98 opResult = usb_device_connection_initialize_from_device(
99 &hub->device_connection,
100 hub->device);
101 if(opResult != EOK){
102 dprintf(USB_LOG_LEVEL_ERROR,
103 "could not initialize connection to hc, errno %d",opResult);
104 return opResult;
105 }
106 usb_log_debug("Initializing USB wire abstraction.\n");
107 opResult = usb_hc_connection_initialize_from_device(&hub->connection,
108 hub->device);
109 if(opResult != EOK){
110 dprintf(USB_LOG_LEVEL_ERROR,
111 "could not initialize connection to device, errno %d",opResult);
112 return opResult;
113 }
114 usb_log_debug("Initializing default control pipe.\n");
115 opResult = usb_endpoint_pipe_initialize_default_control(&hub->endpoints.control,
116 &hub->device_connection);
117 if(opResult != EOK){
118 dprintf(USB_LOG_LEVEL_ERROR,
119 "could not initialize connection to device endpoint, errno %d",opResult);
120 }
121 return opResult;
122}
123
124/**
125 * When entering this function, hub->endpoints.control should be active.
126 * @param hub
127 * @return
128 */
129static int usb_hub_process_configuration_descriptors(
130 usb_hub_info_t * hub){
131 if(hub==NULL) {
132 return EINVAL;
133 }
134 int opResult;
135
136 //device descriptor
137 usb_standard_device_descriptor_t std_descriptor;
138 opResult = usb_request_get_device_descriptor(&hub->endpoints.control,
139 &std_descriptor);
140 if(opResult!=EOK){
141 dprintf(USB_LOG_LEVEL_ERROR, "could not get device descriptor, %d",opResult);
142 return opResult;
143 }
144 dprintf(USB_LOG_LEVEL_INFO, "hub has %d configurations",
145 std_descriptor.configuration_count);
146 if(std_descriptor.configuration_count<1){
147 dprintf(USB_LOG_LEVEL_ERROR, "THERE ARE NO CONFIGURATIONS AVAILABLE");
148 //shouldn`t I return?
149 }
150
151 /* Retrieve full configuration descriptor. */
152 uint8_t *descriptors = NULL;
153 size_t descriptors_size = 0;
154 opResult = usb_request_get_full_configuration_descriptor_alloc(
155 &hub->endpoints.control, 0,
156 (void **) &descriptors, &descriptors_size);
157 if (opResult != EOK) {
158 usb_log_error("Could not get configuration descriptor: %s.\n",
159 str_error(opResult));
160 return opResult;
161 }
162 usb_standard_configuration_descriptor_t *config_descriptor
163 = (usb_standard_configuration_descriptor_t *) descriptors;
164
165 /* Set configuration. */
166 opResult = usb_request_set_configuration(&hub->endpoints.control,
167 config_descriptor->configuration_number);
168
169 if (opResult != EOK) {
170 usb_log_error("Failed to set hub configuration: %s.\n",
171 str_error(opResult));
172 return opResult;
173 }
174 dprintf(USB_LOG_LEVEL_DEBUG, "\tused configuration %d",
175 config_descriptor->configuration_number);
176
177 usb_endpoint_mapping_t endpoint_mapping[1] = {
178 {
179 .pipe = &hub->endpoints.status_change,
180 .description = &status_change_endpoint_description,
181 .interface_no =
182 usb_device_get_assigned_interface(hub->device)
183 }
184 };
185 opResult = usb_endpoint_pipe_initialize_from_configuration(
186 endpoint_mapping, 1,
187 descriptors, descriptors_size,
188 &hub->device_connection);
189 if (opResult != EOK) {
190 dprintf(USB_LOG_LEVEL_ERROR,
191 "Failed to initialize status change pipe: %s",
192 str_error(opResult));
193 return opResult;
194 }
195 if (!endpoint_mapping[0].present) {
196 dprintf(USB_LOG_LEVEL_ERROR,"Not accepting device, " \
197 "cannot understand what is happenning");
198 return EREFUSED;
199 }
200
201 free(descriptors);
202 return EOK;
203
204}
205
206
207/**
208 * Create hub representation from device information.
209 * @param device
210 * @return pointer to created structure or NULL in case of error
211 */
212usb_hub_info_t * usb_create_hub_info(ddf_dev_t * device) {
213 usb_hub_info_t* result = usb_new(usb_hub_info_t);
214 result->device = device;
215 int opResult;
216 opResult = usb_hub_init_communication(result);
217 if(opResult != EOK){
218 free(result);
219 return NULL;
220 }
221
222 //result->device = device;
223 result->port_count = -1;
224 result->device = device;
225
226 //result->usb_device = usb_new(usb_hcd_attached_device_info_t);
227 size_t received_size;
228
229 // get hub descriptor
230 dprintf(USB_LOG_LEVEL_DEBUG, "creating serialized descripton");
231 void * serialized_descriptor = malloc(USB_HUB_MAX_DESCRIPTOR_SIZE);
232 usb_hub_descriptor_t * descriptor;
233 dprintf(USB_LOG_LEVEL_DEBUG, "starting control transaction");
234 usb_endpoint_pipe_start_session(&result->endpoints.control);
235 opResult = usb_request_set_configuration(&result->endpoints.control, 1);
236 assert(opResult == EOK);
237
238 opResult = usb_request_get_descriptor(&result->endpoints.control,
239 USB_REQUEST_TYPE_CLASS, USB_REQUEST_RECIPIENT_DEVICE,
240 USB_DESCTYPE_HUB,
241 0, 0, serialized_descriptor,
242 USB_HUB_MAX_DESCRIPTOR_SIZE, &received_size);
243 usb_endpoint_pipe_end_session(&result->endpoints.control);
244
245 if (opResult != EOK) {
246 dprintf(USB_LOG_LEVEL_ERROR, "failed when receiving hub descriptor, badcode = %d",opResult);
247 free(serialized_descriptor);
248 free(result);
249 return NULL;
250 }
251 dprintf(USB_LOG_LEVEL_DEBUG2, "deserializing descriptor");
252 descriptor = usb_deserialize_hub_desriptor(serialized_descriptor);
253 if(descriptor==NULL){
254 dprintf(USB_LOG_LEVEL_WARNING, "could not deserialize descriptor ");
255 free(result);
256 return NULL;
257 }
258
259 dprintf(USB_LOG_LEVEL_INFO, "setting port count to %d",descriptor->ports_count);
260 result->port_count = descriptor->ports_count;
261 result->attached_devs = (usb_hc_attached_device_t*)
262 malloc((result->port_count+1) * sizeof(usb_hc_attached_device_t));
263 int i;
264 for(i=0;i<result->port_count+1;++i){
265 result->attached_devs[i].handle=0;
266 result->attached_devs[i].address=0;
267 }
268 dprintf(USB_LOG_LEVEL_DEBUG2, "freeing data");
269 free(serialized_descriptor);
270 free(descriptor->devices_removable);
271 free(descriptor);
272
273 //finish
274
275 dprintf(USB_LOG_LEVEL_INFO, "hub info created");
276
277 return result;
278}
279
280/**
281 * Create hub representation and add it into hub list
282 * @param dev
283 * @return
284 */
285int usb_add_hub_device(ddf_dev_t *dev) {
286 dprintf(USB_LOG_LEVEL_INFO, "add_hub_device(handle=%d)", (int) dev->handle);
287
288 //dev->ops = &hub_device_ops;
289 (void) hub_device_ops;
290
291 usb_hub_info_t * hub_info = usb_create_hub_info(dev);
292 if(!hub_info){
293 return EINTR;
294 }
295
296 int opResult;
297
298 //perform final configurations
299 usb_endpoint_pipe_start_session(&hub_info->endpoints.control);
300 // process descriptors
301 opResult = usb_hub_process_configuration_descriptors(hub_info);
302 if(opResult != EOK){
303 dprintf(USB_LOG_LEVEL_ERROR,"could not get configuration descriptors, %d",
304 opResult);
305 return opResult;
306 }
307 //power ports
308 usb_device_request_setup_packet_t request;
309 int port;
310 for (port = 1; port < hub_info->port_count+1; ++port) {
311 usb_hub_set_power_port_request(&request, port);
312 opResult = usb_endpoint_pipe_control_write(&hub_info->endpoints.control,
313 &request,sizeof(usb_device_request_setup_packet_t), NULL, 0);
314 dprintf(USB_LOG_LEVEL_INFO, "powering port %d",port);
315 if (opResult != EOK) {
316 dprintf(USB_LOG_LEVEL_WARNING, "something went wrong when setting hub`s %dth port", port);
317 }
318 }
319 //ports powered, hub seems to be enabled
320 usb_endpoint_pipe_end_session(&hub_info->endpoints.control);
321
322 //add the hub to list
323 //is this needed now?
324 fibril_mutex_lock(&usb_hub_list_lock);
325 usb_lst_append(&usb_hub_list, hub_info);
326 fibril_mutex_unlock(&usb_hub_list_lock);
327 dprintf(USB_LOG_LEVEL_DEBUG, "hub info added to list");
328
329 dprintf(USB_LOG_LEVEL_DEBUG, "adding to ddf");
330 ddf_fun_t *hub_fun = ddf_fun_create(dev, fun_exposed, "hub");
331 assert(hub_fun != NULL);
332 hub_fun->ops = NULL;
333
334 int rc = ddf_fun_bind(hub_fun);
335 assert(rc == EOK);
336 rc = ddf_fun_add_to_class(hub_fun, "hub");
337 assert(rc == EOK);
338
339 fid_t fid = fibril_create(usb_hub_control_loop, hub_info);
340 if (fid == 0) {
341 dprintf(USB_LOG_LEVEL_ERROR,
342 ": failed to start monitoring fibril for new hub");
343 return ENOMEM;
344 }
345 fibril_add_ready(fid);
346
347 dprintf(USB_LOG_LEVEL_DEBUG, "hub fibril created");
348 //(void)hub_info;
349 //usb_hub_check_hub_changes();
350
351 dprintf(USB_LOG_LEVEL_INFO, "hub dev added");
352 //address is lost...
353 dprintf(USB_LOG_LEVEL_DEBUG, "\taddress %d, has %d ports ",
354 //hub_info->endpoints.control.,
355 hub_info->port_count);
356
357 return EOK;
358 //return ENOTSUP;
359}
360
361
362//*********************************************
363//
364// hub driver code, main loop
365//
366//*********************************************
367
368/**
369 * Reset the port with new device and reserve the default address.
370 * @param hc
371 * @param port
372 * @param target
373 */
374static void usb_hub_init_add_device(usb_hub_info_t * hub, uint16_t port) {
375 usb_device_request_setup_packet_t request;
376 int opResult;
377 dprintf(USB_LOG_LEVEL_INFO, "some connection changed");
378 assert(hub->endpoints.control.hc_phone);
379 //get default address
380 //opResult = usb_drv_reserve_default_address(hc);
381 opResult = usb_hc_reserve_default_address(&hub->connection, USB_SPEED_LOW);
382
383 if (opResult != EOK) {
384 dprintf(USB_LOG_LEVEL_WARNING,
385 "cannot assign default address, it is probably used %d",opResult);
386 return;
387 }
388 //reset port
389 usb_hub_set_reset_port_request(&request, port);
390 opResult = usb_endpoint_pipe_control_write(
391 &hub->endpoints.control,
392 &request,sizeof(usb_device_request_setup_packet_t),
393 NULL, 0
394 );
395 if (opResult != EOK) {
396 dprintf(USB_LOG_LEVEL_ERROR,
397 "something went wrong when reseting a port %d",opResult);
398 //usb_hub_release_default_address(hc);
399 usb_hc_release_default_address(&hub->connection);
400 }
401}
402
403/**
404 * Finalize adding new device after port reset
405 * @param hc
406 * @param port
407 * @param target
408 */
409static void usb_hub_finalize_add_device( usb_hub_info_t * hub,
410 uint16_t port, bool isLowSpeed) {
411
412 int opResult;
413 dprintf(USB_LOG_LEVEL_INFO, "finalizing add device");
414 opResult = usb_hub_clear_port_feature(&hub->endpoints.control,
415 port, USB_HUB_FEATURE_C_PORT_RESET);
416
417 if (opResult != EOK) {
418 dprintf(USB_LOG_LEVEL_ERROR, "failed to clear port reset feature");
419 usb_hc_release_default_address(&hub->connection);
420 return;
421 }
422 //create connection to device
423 usb_endpoint_pipe_t new_device_pipe;
424 usb_device_connection_t new_device_connection;
425 usb_device_connection_initialize_on_default_address(
426 &new_device_connection,
427 &hub->connection
428 );
429 usb_endpoint_pipe_initialize_default_control(
430 &new_device_pipe,
431 &new_device_connection);
432 /// \TODO get highspeed info
433 usb_speed_t speed = isLowSpeed?USB_SPEED_LOW:USB_SPEED_FULL;
434
435
436 /* Request address from host controller. */
437 usb_address_t new_device_address = usb_hc_request_address(
438 &hub->connection,
439 speed/// \TODO fullspeed??
440 );
441 if (new_device_address < 0) {
442 dprintf(USB_LOG_LEVEL_ERROR, "failed to get free USB address");
443 opResult = new_device_address;
444 usb_hc_release_default_address(&hub->connection);
445 return;
446 }
447 dprintf(USB_LOG_LEVEL_INFO, "setting new address %d",new_device_address);
448 //opResult = usb_drv_req_set_address(hc, USB_ADDRESS_DEFAULT,
449 // new_device_address);
450 usb_endpoint_pipe_start_session(&new_device_pipe);
451 opResult = usb_request_set_address(&new_device_pipe,new_device_address);
452 usb_endpoint_pipe_end_session(&new_device_pipe);
453 if (opResult != EOK) {
454 dprintf(USB_LOG_LEVEL_ERROR,
455 "could not set address for new device %d",opResult);
456 usb_hc_release_default_address(&hub->connection);
457 return;
458 }
459
460
461 //opResult = usb_hub_release_default_address(hc);
462 opResult = usb_hc_release_default_address(&hub->connection);
463 if(opResult!=EOK){
464 return;
465 }
466
467 devman_handle_t child_handle;
468 //??
469 opResult = usb_device_register_child_in_devman(new_device_address,
470 hub->connection.hc_handle, hub->device, &child_handle,
471 NULL, NULL, NULL);
472
473 if (opResult != EOK) {
474 dprintf(USB_LOG_LEVEL_ERROR,
475 "could not start driver for new device %d",opResult);
476 return;
477 }
478 hub->attached_devs[port].handle = child_handle;
479 hub->attached_devs[port].address = new_device_address;
480
481 //opResult = usb_drv_bind_address(hc, new_device_address, child_handle);
482 opResult = usb_hc_register_device(
483 &hub->connection,
484 &hub->attached_devs[port]);
485 if (opResult != EOK) {
486 dprintf(USB_LOG_LEVEL_ERROR,
487 "could not assign address of device in hcd %d",opResult);
488 return;
489 }
490 dprintf(USB_LOG_LEVEL_INFO, "new device address %d, handle %zu",
491 new_device_address, child_handle);
492
493}
494
495/**
496 * Unregister device address in hc
497 * @param hc
498 * @param port
499 * @param target
500 */
501static void usb_hub_removed_device(
502 usb_hub_info_t * hub,uint16_t port) {
503 //usb_device_request_setup_packet_t request;
504 int opResult;
505
506 /** \TODO remove device from device manager - not yet implemented in
507 * devide manager
508 */
509
510 //close address
511 if(hub->attached_devs[port].address!=0){
512 //opResult = usb_drv_release_address(hc,hub->attached_devs[port].address);
513 opResult = usb_hc_unregister_device(
514 &hub->connection, hub->attached_devs[port].address);
515 if(opResult != EOK) {
516 dprintf(USB_LOG_LEVEL_WARNING, "could not release address of " \
517 "removed device: %d", opResult);
518 }
519 hub->attached_devs[port].address = 0;
520 hub->attached_devs[port].handle = 0;
521 }else{
522 dprintf(USB_LOG_LEVEL_WARNING, "this is strange, disconnected device had no address");
523 //device was disconnected before it`s port was reset - return default address
524 //usb_drv_release_default_address(hc);
525 usb_hc_release_default_address(&hub->connection);
526 }
527}
528
529
530/**
531 *Process over current condition on port.
532 *
533 * Turn off the power on the port.
534 *
535 * @param hub
536 * @param port
537 */
538static void usb_hub_over_current( usb_hub_info_t * hub,
539 uint16_t port){
540 int opResult;
541 opResult = usb_hub_clear_port_feature(&hub->endpoints.control,
542 port, USB_HUB_FEATURE_PORT_POWER);
543 if(opResult!=EOK){
544 dprintf(USB_LOG_LEVEL_ERROR, "cannot power off port %d; %d",
545 port, opResult);
546 }
547}
548
549/**
550 * Process interrupts on given hub port
551 * @param hc
552 * @param port
553 * @param target
554 */
555static void usb_hub_process_interrupt(usb_hub_info_t * hub,
556 uint16_t port) {
557 dprintf(USB_LOG_LEVEL_DEBUG, "interrupt at port %d", port);
558 //determine type of change
559 usb_endpoint_pipe_t *pipe = &hub->endpoints.control;
560
561 int opResult;
562
563 usb_port_status_t status;
564 size_t rcvd_size;
565 usb_device_request_setup_packet_t request;
566 //int opResult;
567 usb_hub_set_port_status_request(&request, port);
568 //endpoint 0
569
570 opResult = usb_endpoint_pipe_control_read(
571 pipe,
572 &request, sizeof(usb_device_request_setup_packet_t),
573 &status, 4, &rcvd_size
574 );
575 if (opResult != EOK) {
576 dprintf(USB_LOG_LEVEL_ERROR, "could not get port status");
577 return;
578 }
579 if (rcvd_size != sizeof (usb_port_status_t)) {
580 dprintf(USB_LOG_LEVEL_ERROR, "received status has incorrect size");
581 return;
582 }
583 //something connected/disconnected
584 if (usb_port_connect_change(&status)) {
585 opResult = usb_hub_clear_port_feature(pipe,
586 port, USB_HUB_FEATURE_C_PORT_CONNECTION);
587 // TODO: check opResult
588 if (usb_port_dev_connected(&status)) {
589 dprintf(USB_LOG_LEVEL_INFO, "some connection changed");
590 usb_hub_init_add_device(hub, port);
591 } else {
592 usb_hub_removed_device(hub, port);
593 }
594 }
595 //over current
596 if (usb_port_overcurrent_change(&status)) {
597 //check if it was not auto-resolved
598 if(usb_port_over_current(&status)){
599 usb_hub_over_current(hub,port);
600 }else{
601 dprintf(USB_LOG_LEVEL_INFO,
602 "over current condition was auto-resolved on port %d",port);
603 }
604 }
605 //port reset
606 if (usb_port_reset_completed(&status)) {
607 dprintf(USB_LOG_LEVEL_INFO, "port reset complete");
608 if (usb_port_enabled(&status)) {
609 usb_hub_finalize_add_device(hub, port, usb_port_low_speed(&status));
610 } else {
611 dprintf(USB_LOG_LEVEL_WARNING, "port reset, but port still not enabled");
612 }
613 }
614
615 usb_port_set_connect_change(&status, false);
616 usb_port_set_reset(&status, false);
617 usb_port_set_reset_completed(&status, false);
618 usb_port_set_dev_connected(&status, false);
619 if (status>>16) {
620 dprintf(USB_LOG_LEVEL_INFO, "there was some unsupported change on port %d: %X",port,status);
621
622 }
623 /// \TODO handle other changes
624}
625
626/**
627 * Check changes on particular hub
628 * @param hub_info_param
629 */
630void usb_hub_check_hub_changes(usb_hub_info_t * hub_info){
631 int opResult;
632 opResult = usb_endpoint_pipe_start_session(&hub_info->endpoints.status_change);
633 if(opResult != EOK){
634 dprintf(USB_LOG_LEVEL_ERROR,
635 "could not initialize communication for hub; %d", opResult);
636 return;
637 }
638
639 size_t port_count = hub_info->port_count;
640
641 /// FIXME: count properly
642 size_t byte_length = ((port_count+1) / 8) + 1;
643 void *change_bitmap = malloc(byte_length);
644 size_t actual_size;
645
646 /*
647 * Send the request.
648 */
649 opResult = usb_endpoint_pipe_read(
650 &hub_info->endpoints.status_change,
651 change_bitmap, byte_length, &actual_size
652 );
653
654 if (opResult != EOK) {
655 free(change_bitmap);
656 dprintf(USB_LOG_LEVEL_WARNING, "something went wrong while getting status of hub");
657 usb_endpoint_pipe_end_session(&hub_info->endpoints.status_change);
658 return;
659 }
660 unsigned int port;
661 opResult = usb_endpoint_pipe_start_session(&hub_info->endpoints.control);
662 if(opResult!=EOK){
663 dprintf(USB_LOG_LEVEL_ERROR, "could not start control pipe session %d",
664 opResult);
665 usb_endpoint_pipe_end_session(&hub_info->endpoints.status_change);
666 return;
667 }
668 opResult = usb_hc_connection_open(&hub_info->connection);
669 if(opResult!=EOK){
670 dprintf(USB_LOG_LEVEL_ERROR, "could not start host controller session %d",
671 opResult);
672 usb_endpoint_pipe_end_session(&hub_info->endpoints.control);
673 usb_endpoint_pipe_end_session(&hub_info->endpoints.status_change);
674 return;
675 }
676
677 ///todo, opresult check, pre obe konekce
678 for (port = 1; port < port_count+1; ++port) {
679 bool interrupt =
680 (((uint8_t*) change_bitmap)[port / 8] >> (port % 8)) % 2;
681 if (interrupt) {
682 usb_hub_process_interrupt(
683 hub_info, port);
684 }
685 }
686 usb_hc_connection_close(&hub_info->connection);
687 usb_endpoint_pipe_end_session(&hub_info->endpoints.control);
688 usb_endpoint_pipe_end_session(&hub_info->endpoints.status_change);
689 free(change_bitmap);
690}
691
692
693
694/**
695 * @}
696 */
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