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--- old/usr/src/uts/common/io/usb/usba/hubdi.c
+++ new/usr/src/uts/common/io/usb/usba/hubdi.c
1 1 /*
2 2 * CDDL HEADER START
3 3 *
4 4 * The contents of this file are subject to the terms of the
5 5 * Common Development and Distribution License (the "License").
6 6 * You may not use this file except in compliance with the License.
7 7 *
8 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 9 * or http://www.opensolaris.org/os/licensing.
10 10 * See the License for the specific language governing permissions
11 11 * and limitations under the License.
12 12 *
13 13 * When distributing Covered Code, include this CDDL HEADER in each
14 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 15 * If applicable, add the following below this CDDL HEADER, with the
16 16 * fields enclosed by brackets "[]" replaced with your own identifying
17 17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 18 *
19 19 * CDDL HEADER END
20 20 */
21 21 /*
22 22 * Copyright (c) 1998, 2010, Oracle and/or its affiliates. All rights reserved.
23 23 * Copyright 2012 Garrett D'Amore <garrett@damore.org>. All rights reserved.
24 24 * Copyright 2014 Nexenta Systems, Inc. All rights reserved.
25 25 */
26 26
27 27 /*
28 28 * USBA: Solaris USB Architecture support for the hub
29 29 * including root hub
30 30 * Most of the code for hubd resides in this file and
31 31 * is shared between the HCD root hub support and hubd
32 32 */
33 33 #define USBA_FRAMEWORK
34 34 #include <sys/usb/usba.h>
35 35 #include <sys/usb/usba/usba_devdb.h>
36 36 #include <sys/sunndi.h>
37 37 #include <sys/usb/usba/usba_impl.h>
38 38 #include <sys/usb/usba/usba_types.h>
39 39 #include <sys/usb/usba/hubdi.h>
40 40 #include <sys/usb/usba/hcdi_impl.h>
41 41 #include <sys/usb/hubd/hub.h>
42 42 #include <sys/usb/hubd/hubdvar.h>
43 43 #include <sys/usb/hubd/hubd_impl.h>
44 44 #include <sys/kobj.h>
45 45 #include <sys/kobj_lex.h>
46 46 #include <sys/fs/dv_node.h>
47 47 #include <sys/strsun.h>
48 48
49 49 /*
50 50 * External functions
51 51 */
52 52 extern boolean_t consconfig_console_is_ready(void);
53 53
54 54 /*
55 55 * Prototypes for static functions
56 56 */
57 57 static int usba_hubdi_bus_ctl(
58 58 dev_info_t *dip,
59 59 dev_info_t *rdip,
60 60 ddi_ctl_enum_t op,
61 61 void *arg,
62 62 void *result);
63 63
64 64 static int usba_hubdi_map_fault(
65 65 dev_info_t *dip,
66 66 dev_info_t *rdip,
67 67 struct hat *hat,
68 68 struct seg *seg,
69 69 caddr_t addr,
70 70 struct devpage *dp,
71 71 pfn_t pfn,
72 72 uint_t prot,
73 73 uint_t lock);
74 74
75 75 static int hubd_busop_get_eventcookie(dev_info_t *dip,
76 76 dev_info_t *rdip,
77 77 char *eventname,
78 78 ddi_eventcookie_t *cookie);
79 79 static int hubd_busop_add_eventcall(dev_info_t *dip,
80 80 dev_info_t *rdip,
81 81 ddi_eventcookie_t cookie,
82 82 void (*callback)(dev_info_t *dip,
83 83 ddi_eventcookie_t cookie, void *arg,
84 84 void *bus_impldata),
85 85 void *arg, ddi_callback_id_t *cb_id);
86 86 static int hubd_busop_remove_eventcall(dev_info_t *dip,
87 87 ddi_callback_id_t cb_id);
88 88 static int hubd_bus_config(dev_info_t *dip,
89 89 uint_t flag,
90 90 ddi_bus_config_op_t op,
91 91 void *arg,
92 92 dev_info_t **child);
93 93 static int hubd_bus_unconfig(dev_info_t *dip,
94 94 uint_t flag,
95 95 ddi_bus_config_op_t op,
96 96 void *arg);
97 97 static int hubd_bus_power(dev_info_t *dip, void *impl_arg,
98 98 pm_bus_power_op_t op, void *arg, void *result);
99 99
100 100 static usb_port_t hubd_get_port_num(hubd_t *, struct devctl_iocdata *);
101 101 static dev_info_t *hubd_get_child_dip(hubd_t *, usb_port_t);
102 102 static uint_t hubd_cfgadm_state(hubd_t *, usb_port_t);
103 103 static int hubd_toggle_port(hubd_t *, usb_port_t);
104 104 static void hubd_register_cpr_callback(hubd_t *);
105 105 static void hubd_unregister_cpr_callback(hubd_t *);
106 106
107 107 /*
108 108 * Busops vector for USB HUB's
109 109 */
110 110 struct bus_ops usba_hubdi_busops = {
111 111 BUSO_REV,
112 112 nullbusmap, /* bus_map */
113 113 NULL, /* bus_get_intrspec */
114 114 NULL, /* bus_add_intrspec */
115 115 NULL, /* bus_remove_intrspec */
116 116 usba_hubdi_map_fault, /* bus_map_fault */
117 117 NULL, /* bus_dma_map */
118 118 ddi_dma_allochdl,
119 119 ddi_dma_freehdl,
120 120 ddi_dma_bindhdl,
121 121 ddi_dma_unbindhdl,
122 122 ddi_dma_flush,
123 123 ddi_dma_win,
124 124 ddi_dma_mctl, /* bus_dma_ctl */
125 125 usba_hubdi_bus_ctl, /* bus_ctl */
126 126 ddi_bus_prop_op, /* bus_prop_op */
127 127 hubd_busop_get_eventcookie,
128 128 hubd_busop_add_eventcall,
129 129 hubd_busop_remove_eventcall,
130 130 NULL, /* bus_post_event */
131 131 NULL, /* bus_intr_ctl */
132 132 hubd_bus_config, /* bus_config */
133 133 hubd_bus_unconfig, /* bus_unconfig */
134 134 NULL, /* bus_fm_init */
135 135 NULL, /* bus_fm_fini */
136 136 NULL, /* bus_fm_access_enter */
137 137 NULL, /* bus_fm_access_exit */
138 138 hubd_bus_power /* bus_power */
139 139 };
140 140
141 141 #define USB_HUB_INTEL_VID 0x8087
142 142 #define USB_HUB_INTEL_PID 0x0020
143 143
144 144 /*
145 145 * local variables
146 146 */
147 147 static kmutex_t usba_hubdi_mutex; /* protects USBA HUB data structures */
148 148
149 149 static usba_list_entry_t usba_hubdi_list;
150 150
151 151 usb_log_handle_t hubdi_log_handle;
152 152 uint_t hubdi_errlevel = USB_LOG_L4;
153 153 uint_t hubdi_errmask = (uint_t)-1;
154 154 uint8_t hubdi_min_pm_threshold = 5; /* seconds */
155 155 uint8_t hubdi_reset_delay = 20; /* seconds */
156 156 extern int modrootloaded;
157 157
158 158 /*
159 159 * initialize private data
160 160 */
161 161 void
162 162 usba_hubdi_initialization()
163 163 {
164 164 hubdi_log_handle = usb_alloc_log_hdl(NULL, "hubdi", &hubdi_errlevel,
165 165 &hubdi_errmask, NULL, 0);
166 166
167 167 USB_DPRINTF_L4(DPRINT_MASK_HUBDI, hubdi_log_handle,
168 168 "usba_hubdi_initialization");
169 169
170 170 mutex_init(&usba_hubdi_mutex, NULL, MUTEX_DRIVER, NULL);
171 171
172 172 usba_init_list(&usba_hubdi_list, NULL, NULL);
173 173 }
174 174
175 175
176 176 void
177 177 usba_hubdi_destroy()
178 178 {
179 179 USB_DPRINTF_L4(DPRINT_MASK_HUBDI, hubdi_log_handle,
180 180 "usba_hubdi_destroy");
181 181
182 182 mutex_destroy(&usba_hubdi_mutex);
183 183 usba_destroy_list(&usba_hubdi_list);
184 184
185 185 usb_free_log_hdl(hubdi_log_handle);
186 186 }
187 187
188 188
189 189 /*
190 190 * Called by an HUB to attach an instance of the driver
191 191 * make this instance known to USBA
192 192 * the HUB should initialize usba_hubdi structure prior
193 193 * to calling this interface
194 194 */
195 195 int
196 196 usba_hubdi_register(dev_info_t *dip,
197 197 uint_t flags)
198 198 {
199 199 usba_hubdi_t *hubdi = kmem_zalloc(sizeof (usba_hubdi_t), KM_SLEEP);
200 200 usba_device_t *usba_device = usba_get_usba_device(dip);
201 201
202 202 USB_DPRINTF_L4(DPRINT_MASK_HUBDI, hubdi_log_handle,
203 203 "usba_hubdi_register: %s", ddi_node_name(dip));
204 204
205 205 hubdi->hubdi_dip = dip;
206 206 hubdi->hubdi_flags = flags;
207 207
208 208 usba_device->usb_hubdi = hubdi;
209 209
210 210 /*
211 211 * add this hubdi instance to the list of known hubdi's
212 212 */
213 213 usba_init_list(&hubdi->hubdi_list, (usb_opaque_t)hubdi,
214 214 usba_hcdi_get_hcdi(usba_device->usb_root_hub_dip)->
215 215 hcdi_iblock_cookie);
216 216 mutex_enter(&usba_hubdi_mutex);
217 217 usba_add_to_list(&usba_hubdi_list, &hubdi->hubdi_list);
218 218 mutex_exit(&usba_hubdi_mutex);
219 219
220 220 return (DDI_SUCCESS);
221 221 }
222 222
223 223
224 224 /*
225 225 * Called by an HUB to detach an instance of the driver
226 226 */
227 227 int
228 228 usba_hubdi_unregister(dev_info_t *dip)
229 229 {
230 230 usba_device_t *usba_device = usba_get_usba_device(dip);
231 231 usba_hubdi_t *hubdi = usba_device->usb_hubdi;
232 232
233 233 USB_DPRINTF_L4(DPRINT_MASK_HUBDI, hubdi_log_handle,
234 234 "usba_hubdi_unregister: %s", ddi_node_name(dip));
235 235
236 236 mutex_enter(&usba_hubdi_mutex);
237 237 (void) usba_rm_from_list(&usba_hubdi_list, &hubdi->hubdi_list);
238 238 mutex_exit(&usba_hubdi_mutex);
239 239
240 240 usba_destroy_list(&hubdi->hubdi_list);
241 241
242 242 kmem_free(hubdi, sizeof (usba_hubdi_t));
243 243
244 244 return (DDI_SUCCESS);
245 245 }
246 246
247 247
248 248 /*
249 249 * misc bus routines currently not used
250 250 */
251 251 /*ARGSUSED*/
252 252 static int
253 253 usba_hubdi_map_fault(dev_info_t *dip,
254 254 dev_info_t *rdip,
255 255 struct hat *hat,
256 256 struct seg *seg,
257 257 caddr_t addr,
258 258 struct devpage *dp,
259 259 pfn_t pfn,
260 260 uint_t prot,
261 261 uint_t lock)
262 262 {
263 263 return (DDI_FAILURE);
264 264 }
265 265
266 266
267 267 /*
268 268 * root hub support. the root hub uses the same devi as the HCD
269 269 */
270 270 int
271 271 usba_hubdi_bind_root_hub(dev_info_t *dip,
272 272 uchar_t *root_hub_config_descriptor,
273 273 size_t config_length,
274 274 usb_dev_descr_t *root_hub_device_descriptor)
275 275 {
276 276 usba_device_t *usba_device;
277 277 usba_hcdi_t *hcdi = usba_hcdi_get_hcdi(dip);
278 278 hubd_t *root_hubd;
279 279 usb_pipe_handle_t ph = NULL;
280 280 dev_info_t *child = ddi_get_child(dip);
281 281
282 282 if (ndi_prop_create_boolean(DDI_DEV_T_NONE, dip,
283 283 "root-hub") != NDI_SUCCESS) {
284 284
285 285 return (USB_FAILURE);
286 286 }
287 287
288 288 usba_add_root_hub(dip);
289 289
290 290 root_hubd = kmem_zalloc(sizeof (hubd_t), KM_SLEEP);
291 291
292 292 /*
293 293 * create and initialize a usba_device structure
294 294 */
295 295 usba_device = usba_alloc_usba_device(dip);
296 296
297 297 mutex_enter(&usba_device->usb_mutex);
298 298 usba_device->usb_hcdi_ops = hcdi->hcdi_ops;
299 299 usba_device->usb_cfg = root_hub_config_descriptor;
300 300 usba_device->usb_cfg_length = config_length;
301 301 usba_device->usb_dev_descr = root_hub_device_descriptor;
302 302 usba_device->usb_port = 1;
303 303 usba_device->usb_addr = ROOT_HUB_ADDR;
304 304 usba_device->usb_root_hubd = root_hubd;
305 305 usba_device->usb_cfg_array = kmem_zalloc(sizeof (uchar_t *),
306 306 KM_SLEEP);
307 307 usba_device->usb_cfg_array_length = sizeof (uchar_t *);
308 308
309 309 usba_device->usb_cfg_array_len = kmem_zalloc(sizeof (uint16_t),
310 310 KM_SLEEP);
311 311 usba_device->usb_cfg_array_len_length = sizeof (uint16_t);
312 312
313 313 usba_device->usb_cfg_array[0] = root_hub_config_descriptor;
314 314 usba_device->usb_cfg_array_len[0] =
315 315 sizeof (root_hub_config_descriptor);
316 316
317 317 usba_device->usb_cfg_str_descr = kmem_zalloc(sizeof (uchar_t *),
318 318 KM_SLEEP);
319 319 usba_device->usb_n_cfgs = 1;
320 320 usba_device->usb_n_ifs = 1;
321 321 usba_device->usb_dip = dip;
322 322
323 323 usba_device->usb_client_flags = kmem_zalloc(
324 324 usba_device->usb_n_ifs * USBA_CLIENT_FLAG_SIZE, KM_SLEEP);
325 325
326 326 usba_device->usb_client_attach_list = kmem_zalloc(
327 327 usba_device->usb_n_ifs *
328 328 sizeof (*usba_device->usb_client_attach_list), KM_SLEEP);
329 329
330 330 usba_device->usb_client_ev_cb_list = kmem_zalloc(
331 331 usba_device->usb_n_ifs *
332 332 sizeof (*usba_device->usb_client_ev_cb_list), KM_SLEEP);
333 333
334 334 /*
335 335 * The bDeviceProtocol field of root hub device specifies,
336 336 * whether root hub is a High or Full speed usb device.
337 337 */
338 338 if (root_hub_device_descriptor->bDeviceProtocol) {
339 339 usba_device->usb_port_status = USBA_HIGH_SPEED_DEV;
340 340 } else {
341 341 usba_device->usb_port_status = USBA_FULL_SPEED_DEV;
342 342 }
343 343
344 344 mutex_exit(&usba_device->usb_mutex);
345 345
346 346 usba_set_usba_device(dip, usba_device);
347 347
348 348 /*
349 349 * For the root hub the default pipe is not yet open
350 350 */
351 351 if (usb_pipe_open(dip, NULL, NULL,
352 352 USB_FLAGS_SLEEP | USBA_FLAGS_PRIVILEGED, &ph) != USB_SUCCESS) {
353 353 goto fail;
354 354 }
355 355
356 356 /*
357 357 * kill off all OBP children, they may not be fully
358 358 * enumerated
359 359 */
360 360 while (child) {
361 361 dev_info_t *next = ddi_get_next_sibling(child);
362 362 (void) ddi_remove_child(child, 0);
363 363 child = next;
364 364 }
365 365
366 366 /*
367 367 * "attach" the root hub driver
368 368 */
369 369 if (usba_hubdi_attach(dip, DDI_ATTACH) != DDI_SUCCESS) {
370 370 goto fail;
371 371 }
372 372
373 373 return (USB_SUCCESS);
374 374
375 375 fail:
376 376 (void) ndi_prop_remove(DDI_DEV_T_NONE, dip, "root-hub");
377 377
378 378 usba_rem_root_hub(dip);
379 379
380 380 if (ph) {
381 381 usb_pipe_close(dip, ph,
382 382 USB_FLAGS_SLEEP | USBA_FLAGS_PRIVILEGED, NULL, NULL);
383 383 }
384 384
385 385 kmem_free(usba_device->usb_cfg_array,
386 386 usba_device->usb_cfg_array_length);
387 387 kmem_free(usba_device->usb_cfg_array_len,
388 388 usba_device->usb_cfg_array_len_length);
389 389
390 390 kmem_free(usba_device->usb_cfg_str_descr, sizeof (uchar_t *));
391 391
392 392 usba_free_usba_device(usba_device);
393 393
394 394 usba_set_usba_device(dip, NULL);
395 395 if (root_hubd) {
396 396 kmem_free(root_hubd, sizeof (hubd_t));
397 397 }
398 398
399 399 return (USB_FAILURE);
400 400 }
401 401
402 402
403 403 int
404 404 usba_hubdi_unbind_root_hub(dev_info_t *dip)
405 405 {
406 406 usba_device_t *usba_device;
407 407
408 408 /* was root hub attached? */
409 409 if (!(usba_is_root_hub(dip))) {
410 410
411 411 /* return success anyway */
412 412 return (USB_SUCCESS);
413 413 }
414 414
415 415 /*
416 416 * usba_hubdi_detach also closes the default pipe
417 417 * and removes properties so there is no need to
418 418 * do it here
419 419 */
420 420 if (usba_hubdi_detach(dip, DDI_DETACH) != DDI_SUCCESS) {
421 421
422 422 if (DEVI_IS_ATTACHING(dip)) {
423 423 USB_DPRINTF_L2(DPRINT_MASK_ATTA, hubdi_log_handle,
424 424 "failure to unbind root hub after attach failure");
425 425 }
426 426
427 427 return (USB_FAILURE);
428 428 }
429 429
430 430 usba_device = usba_get_usba_device(dip);
431 431
432 432 kmem_free(usba_device->usb_root_hubd, sizeof (hubd_t));
433 433
434 434 kmem_free(usba_device->usb_cfg_array,
435 435 usba_device->usb_cfg_array_length);
436 436 kmem_free(usba_device->usb_cfg_array_len,
437 437 usba_device->usb_cfg_array_len_length);
438 438
439 439 kmem_free(usba_device->usb_cfg_str_descr, sizeof (uchar_t *));
440 440
441 441 usba_free_usba_device(usba_device);
442 442
443 443 usba_rem_root_hub(dip);
444 444
445 445 (void) ndi_prop_remove(DDI_DEV_T_NONE, dip, "root-hub");
446 446
447 447 return (USB_SUCCESS);
448 448 }
449 449
450 450
451 451 /*
452 452 * Actual Hub Driver support code:
453 453 * shared by root hub and non-root hubs
454 454 */
455 455 #include <sys/usb/usba/usbai_version.h>
456 456
457 457 /* Debugging support */
458 458 uint_t hubd_errlevel = USB_LOG_L4;
459 459 uint_t hubd_errmask = (uint_t)DPRINT_MASK_ALL;
460 460 uint_t hubd_instance_debug = (uint_t)-1;
461 461 static uint_t hubdi_bus_config_debug = 0;
462 462
463 463 _NOTE(DATA_READABLE_WITHOUT_LOCK(hubd_errlevel))
464 464 _NOTE(DATA_READABLE_WITHOUT_LOCK(hubd_errmask))
465 465 _NOTE(DATA_READABLE_WITHOUT_LOCK(hubd_instance_debug))
466 466
467 467 _NOTE(SCHEME_PROTECTS_DATA("unique", msgb))
468 468 _NOTE(SCHEME_PROTECTS_DATA("unique", dev_info))
469 469
470 470
471 471 /*
472 472 * local variables:
473 473 *
474 474 * Amount of time to wait between resetting the port and accessing
475 475 * the device. The value is in microseconds.
476 476 */
477 477 static uint_t hubd_device_delay = 1000000;
478 478
479 479 /*
480 480 * enumeration retry
481 481 */
482 482 #define HUBD_PORT_RETRY 5
483 483 static uint_t hubd_retry_enumerate = HUBD_PORT_RETRY;
484 484
485 485 /*
486 486 * Stale hotremoved device cleanup delay
487 487 */
488 488 #define HUBD_STALE_DIP_CLEANUP_DELAY 5000000
489 489 static uint_t hubd_dip_cleanup_delay = HUBD_STALE_DIP_CLEANUP_DELAY;
490 490
491 491 /*
492 492 * retries for USB suspend and resume
493 493 */
494 494 #define HUBD_SUS_RES_RETRY 2
495 495
496 496 void *hubd_statep;
497 497
498 498 /*
499 499 * prototypes
500 500 */
501 501 static int hubd_cleanup(dev_info_t *dip, hubd_t *hubd);
502 502 static int hubd_check_ports(hubd_t *hubd);
503 503
504 504 static int hubd_open_intr_pipe(hubd_t *hubd);
505 505 static void hubd_start_polling(hubd_t *hubd, int always);
506 506 static void hubd_stop_polling(hubd_t *hubd);
507 507 static void hubd_close_intr_pipe(hubd_t *hubd);
508 508
509 509 static void hubd_read_cb(usb_pipe_handle_t pipe, usb_intr_req_t *req);
510 510 static void hubd_exception_cb(usb_pipe_handle_t pipe,
511 511 usb_intr_req_t *req);
512 512 static void hubd_hotplug_thread(void *arg);
513 513 static void hubd_reset_thread(void *arg);
514 514 static int hubd_create_child(dev_info_t *dip,
515 515 hubd_t *hubd,
516 516 usba_device_t *usba_device,
517 517 usb_port_status_t port_status,
518 518 usb_port_t port,
519 519 int iteration);
520 520
521 521 static int hubd_delete_child(hubd_t *hubd, usb_port_t port, uint_t flag,
522 522 boolean_t retry);
523 523
524 524 static int hubd_get_hub_descriptor(hubd_t *hubd);
525 525
526 526 static int hubd_get_hub_status_words(hubd_t *hubd, uint16_t *status);
527 527
528 528 static int hubd_reset_port(hubd_t *hubd, usb_port_t port);
529 529
530 530 static int hubd_get_hub_status(hubd_t *hubd);
531 531
532 532 static int hubd_handle_port_connect(hubd_t *hubd, usb_port_t port);
533 533
534 534 static int hubd_disable_port(hubd_t *hubd, usb_port_t port);
535 535
536 536 static int hubd_enable_port(hubd_t *hubd, usb_port_t port);
537 537 static int hubd_recover_disabled_port(hubd_t *hubd, usb_port_t port);
538 538
539 539 static int hubd_determine_port_status(hubd_t *hubd, usb_port_t port,
540 540 uint16_t *status, uint16_t *change, uint_t ack_flag);
541 541
542 542 static int hubd_enable_all_port_power(hubd_t *hubd);
543 543 static int hubd_disable_all_port_power(hubd_t *hubd);
544 544 static int hubd_disable_port_power(hubd_t *hubd, usb_port_t port);
545 545 static int hubd_enable_port_power(hubd_t *hubd, usb_port_t port);
546 546
547 547 static void hubd_free_usba_device(hubd_t *hubd, usba_device_t *usba_device);
548 548
549 549 static int hubd_can_suspend(hubd_t *hubd);
550 550 static void hubd_restore_device_state(dev_info_t *dip, hubd_t *hubd);
551 551 static int hubd_setdevaddr(hubd_t *hubd, usb_port_t port);
552 552 static void hubd_setdevconfig(hubd_t *hubd, usb_port_t port);
553 553
554 554 static int hubd_register_events(hubd_t *hubd);
555 555 static void hubd_do_callback(hubd_t *hubd, dev_info_t *dip,
556 556 ddi_eventcookie_t cookie);
557 557 static void hubd_run_callbacks(hubd_t *hubd, usba_event_t type);
558 558 static void hubd_post_event(hubd_t *hubd, usb_port_t port, usba_event_t type);
559 559 static void hubd_create_pm_components(dev_info_t *dip, hubd_t *hubd);
560 560
561 561 static int hubd_disconnect_event_cb(dev_info_t *dip);
562 562 static int hubd_reconnect_event_cb(dev_info_t *dip);
563 563 static int hubd_pre_suspend_event_cb(dev_info_t *dip);
564 564 static int hubd_post_resume_event_cb(dev_info_t *dip);
565 565 static int hubd_cpr_suspend(hubd_t *hubd);
566 566 static void hubd_cpr_resume(dev_info_t *dip);
567 567 static int hubd_restore_state_cb(dev_info_t *dip);
568 568 static int hubd_check_same_device(hubd_t *hubd, usb_port_t port);
569 569
570 570 static int hubd_init_power_budget(hubd_t *hubd);
571 571
572 572 static ndi_event_definition_t hubd_ndi_event_defs[] = {
573 573 {USBA_EVENT_TAG_HOT_REMOVAL, DDI_DEVI_REMOVE_EVENT, EPL_KERNEL,
574 574 NDI_EVENT_POST_TO_ALL},
575 575 {USBA_EVENT_TAG_HOT_INSERTION, DDI_DEVI_INSERT_EVENT, EPL_KERNEL,
576 576 NDI_EVENT_POST_TO_ALL},
577 577 {USBA_EVENT_TAG_POST_RESUME, USBA_POST_RESUME_EVENT, EPL_KERNEL,
578 578 NDI_EVENT_POST_TO_ALL},
579 579 {USBA_EVENT_TAG_PRE_SUSPEND, USBA_PRE_SUSPEND_EVENT, EPL_KERNEL,
580 580 NDI_EVENT_POST_TO_ALL}
581 581 };
582 582
583 583 #define HUBD_N_NDI_EVENTS \
584 584 (sizeof (hubd_ndi_event_defs) / sizeof (ndi_event_definition_t))
585 585
586 586 static ndi_event_set_t hubd_ndi_events = {
587 587 NDI_EVENTS_REV1, HUBD_N_NDI_EVENTS, hubd_ndi_event_defs};
588 588
589 589 /* events received from parent */
590 590 static usb_event_t hubd_events = {
591 591 hubd_disconnect_event_cb,
592 592 hubd_reconnect_event_cb,
593 593 hubd_pre_suspend_event_cb,
594 594 hubd_post_resume_event_cb
595 595 };
596 596
597 597
598 598 /*
599 599 * hubd_get_soft_state() returns the hubd soft state
600 600 */
601 601 hubd_t *
602 602 hubd_get_soft_state(dev_info_t *dip)
603 603 {
604 604 if (dip == NULL) {
605 605
606 606 return (NULL);
607 607 }
608 608
609 609 if (usba_is_root_hub(dip)) {
610 610 usba_device_t *usba_device = usba_get_usba_device(dip);
611 611
612 612 return (usba_device->usb_root_hubd);
613 613 } else {
614 614 int instance = ddi_get_instance(dip);
615 615
616 616 return (ddi_get_soft_state(hubd_statep, instance));
617 617 }
618 618 }
619 619
620 620
621 621 /*
622 622 * PM support functions:
623 623 */
624 624 /*ARGSUSED*/
625 625 static void
626 626 hubd_pm_busy_component(hubd_t *hubd, dev_info_t *dip, int component)
627 627 {
628 628 if (hubd->h_hubpm != NULL) {
629 629 hubd->h_hubpm->hubp_busy_pm++;
630 630 mutex_exit(HUBD_MUTEX(hubd));
631 631 if (pm_busy_component(dip, 0) != DDI_SUCCESS) {
632 632 mutex_enter(HUBD_MUTEX(hubd));
633 633 hubd->h_hubpm->hubp_busy_pm--;
634 634 mutex_exit(HUBD_MUTEX(hubd));
635 635 }
636 636 mutex_enter(HUBD_MUTEX(hubd));
637 637 USB_DPRINTF_L4(DPRINT_MASK_PM, hubd->h_log_handle,
638 638 "hubd_pm_busy_component: %d", hubd->h_hubpm->hubp_busy_pm);
639 639 }
640 640 }
641 641
642 642
643 643 /*ARGSUSED*/
644 644 static void
645 645 hubd_pm_idle_component(hubd_t *hubd, dev_info_t *dip, int component)
646 646 {
647 647 if (hubd->h_hubpm != NULL) {
648 648 mutex_exit(HUBD_MUTEX(hubd));
649 649 if (pm_idle_component(dip, 0) == DDI_SUCCESS) {
650 650 mutex_enter(HUBD_MUTEX(hubd));
651 651 ASSERT(hubd->h_hubpm->hubp_busy_pm > 0);
652 652 hubd->h_hubpm->hubp_busy_pm--;
653 653 mutex_exit(HUBD_MUTEX(hubd));
654 654 }
655 655 mutex_enter(HUBD_MUTEX(hubd));
656 656 USB_DPRINTF_L4(DPRINT_MASK_PM, hubd->h_log_handle,
657 657 "hubd_pm_idle_component: %d", hubd->h_hubpm->hubp_busy_pm);
658 658 }
659 659 }
660 660
661 661
662 662 /*
663 663 * track power level changes for children of this instance
664 664 */
665 665 static void
666 666 hubd_set_child_pwrlvl(hubd_t *hubd, usb_port_t port, uint8_t power)
667 667 {
668 668 int old_power, new_power, pwr;
669 669 usb_port_t portno;
670 670 hub_power_t *hubpm;
671 671
672 672 USB_DPRINTF_L4(DPRINT_MASK_PM, hubd->h_log_handle,
673 673 "hubd_set_child_pwrlvl: port=%d power=%d",
674 674 port, power);
675 675
676 676 mutex_enter(HUBD_MUTEX(hubd));
677 677 hubpm = hubd->h_hubpm;
678 678
679 679 old_power = 0;
680 680 for (portno = 1; portno <= hubd->h_hub_descr.bNbrPorts; portno++) {
681 681 old_power += hubpm->hubp_child_pwrstate[portno];
682 682 }
683 683
684 684 /* assign the port power */
685 685 pwr = hubd->h_hubpm->hubp_child_pwrstate[port];
686 686 hubd->h_hubpm->hubp_child_pwrstate[port] = power;
687 687 new_power = old_power - pwr + power;
688 688
689 689 USB_DPRINTF_L4(DPRINT_MASK_PM, hubd->h_log_handle,
690 690 "hubd_set_child_pwrlvl: new_power=%d old_power=%d",
691 691 new_power, old_power);
692 692
693 693 if ((new_power > 0) && (old_power == 0)) {
694 694 /* we have the first child coming out of low power */
695 695 (void) hubd_pm_busy_component(hubd, hubd->h_dip, 0);
696 696 } else if ((new_power == 0) && (old_power > 0)) {
697 697 /* we have the last child going to low power */
698 698 (void) hubd_pm_idle_component(hubd, hubd->h_dip, 0);
699 699 }
700 700 mutex_exit(HUBD_MUTEX(hubd));
701 701 }
702 702
703 703
704 704 /*
705 705 * given a child dip, locate its port number
706 706 */
707 707 static usb_port_t
708 708 hubd_child_dip2port(hubd_t *hubd, dev_info_t *dip)
709 709 {
710 710 usb_port_t port;
711 711
712 712 mutex_enter(HUBD_MUTEX(hubd));
713 713 for (port = 1; port <= hubd->h_hub_descr.bNbrPorts; port++) {
714 714 if (hubd->h_children_dips[port] == dip) {
715 715
716 716 break;
717 717 }
718 718 }
719 719 ASSERT(port <= hubd->h_hub_descr.bNbrPorts);
720 720 mutex_exit(HUBD_MUTEX(hubd));
721 721
722 722 return (port);
723 723 }
724 724
725 725
726 726 /*
727 727 * if the hub can be put into low power mode, return success
728 728 * NOTE: suspend here means going to lower power, not CPR suspend.
729 729 */
730 730 static int
731 731 hubd_can_suspend(hubd_t *hubd)
732 732 {
733 733 hub_power_t *hubpm;
734 734 int total_power = 0;
735 735 usb_port_t port;
736 736
737 737 hubpm = hubd->h_hubpm;
738 738
739 739 if (DEVI_IS_DETACHING(hubd->h_dip)) {
740 740
741 741 return (USB_SUCCESS);
742 742 }
743 743
744 744 /*
745 745 * Don't go to lower power if haven't been at full power for enough
746 746 * time to let hotplug thread kickoff.
747 747 */
748 748 if (gethrtime() < (hubpm->hubp_time_at_full_power +
749 749 hubpm->hubp_min_pm_threshold)) {
750 750
751 751 return (USB_FAILURE);
752 752 }
753 753
754 754 for (port = 1; (total_power == 0) &&
755 755 (port <= hubd->h_hub_descr.bNbrPorts); port++) {
756 756 total_power += hubpm->hubp_child_pwrstate[port];
757 757 }
758 758
759 759 USB_DPRINTF_L4(DPRINT_MASK_PM, hubd->h_log_handle,
760 760 "hubd_can_suspend: %d", total_power);
761 761
762 762 return (total_power ? USB_FAILURE : USB_SUCCESS);
763 763 }
764 764
765 765
766 766 /*
767 767 * resume port depending on current device state
768 768 */
769 769 static int
770 770 hubd_resume_port(hubd_t *hubd, usb_port_t port)
771 771 {
772 772 int rval, retry;
773 773 usb_cr_t completion_reason;
774 774 usb_cb_flags_t cb_flags;
775 775 uint16_t status;
776 776 uint16_t change;
777 777 int retval = USB_FAILURE;
778 778
779 779 mutex_enter(HUBD_MUTEX(hubd));
780 780
781 781 USB_DPRINTF_L4(DPRINT_MASK_PM, hubd->h_log_handle,
782 782 "hubd_resume_port: port=%d state=0x%x (%s)", port,
783 783 hubd->h_dev_state, usb_str_dev_state(hubd->h_dev_state));
784 784
785 785 switch (hubd->h_dev_state) {
786 786 case USB_DEV_HUB_CHILD_PWRLVL:
787 787 /*
788 788 * This could be a bus ctl for a port other than the one
789 789 * that has a remote wakeup condition. So check.
790 790 */
791 791 if ((hubd->h_port_state[port] & PORT_STATUS_PSS) == 0) {
792 792 /* the port isn't suspended, so don't resume */
793 793 retval = USB_SUCCESS;
794 794
795 795 USB_DPRINTF_L2(DPRINT_MASK_PM, hubd->h_log_handle,
796 796 "hubd_resume_port: port=%d not suspended", port);
797 797
798 798 break;
799 799 }
800 800 /*
801 801 * Device has initiated a wakeup.
802 802 * Issue a ClearFeature(PortSuspend)
803 803 */
804 804 mutex_exit(HUBD_MUTEX(hubd));
805 805 if ((rval = usb_pipe_sync_ctrl_xfer(hubd->h_dip,
806 806 hubd->h_default_pipe,
807 807 HUB_HANDLE_PORT_FEATURE_TYPE,
808 808 USB_REQ_CLEAR_FEATURE,
809 809 CFS_PORT_SUSPEND,
810 810 port,
811 811 0, NULL, 0,
812 812 &completion_reason, &cb_flags, 0)) != USB_SUCCESS) {
813 813 USB_DPRINTF_L2(DPRINT_MASK_PM, hubd->h_log_handle,
814 814 "ClearFeature(PortSuspend) fails "
815 815 "rval=%d cr=%d cb=0x%x", rval,
816 816 completion_reason, cb_flags);
817 817 }
818 818 mutex_enter(HUBD_MUTEX(hubd));
819 819
820 820 /* either way ack changes on the port */
821 821 (void) hubd_determine_port_status(hubd, port,
822 822 &status, &change, PORT_CHANGE_PSSC);
823 823 retval = USB_SUCCESS;
824 824
825 825 break;
826 826 case USB_DEV_HUB_STATE_RECOVER:
827 827 /*
828 828 * When hubd's connect event callback posts a connect
829 829 * event to its child, it results in this busctl call
830 830 * which is valid
831 831 */
832 832 /* FALLTHRU */
833 833 case USB_DEV_ONLINE:
834 834 if (((hubd->h_port_state[port] & PORT_STATUS_CCS) == 0) ||
835 835 ((hubd->h_port_state[port] & PORT_STATUS_PSS) == 0)) {
836 836 /*
837 837 * the port isn't suspended, or connected
838 838 * so don't resume
839 839 */
840 840 retval = USB_SUCCESS;
841 841
842 842 USB_DPRINTF_L2(DPRINT_MASK_PM, hubd->h_log_handle,
843 843 "hubd_resume_port: port=%d not suspended", port);
844 844
845 845 break;
846 846 }
847 847 /*
848 848 * prevent kicking off the hotplug thread
849 849 */
850 850 hubd->h_hotplug_thread++;
851 851 hubd_stop_polling(hubd);
852 852
853 853 /* Now ClearFeature(PortSuspend) */
854 854 for (retry = 0; retry < HUBD_SUS_RES_RETRY; retry++) {
855 855 mutex_exit(HUBD_MUTEX(hubd));
856 856 rval = usb_pipe_sync_ctrl_xfer(hubd->h_dip,
857 857 hubd->h_default_pipe,
858 858 HUB_HANDLE_PORT_FEATURE_TYPE,
859 859 USB_REQ_CLEAR_FEATURE,
860 860 CFS_PORT_SUSPEND,
861 861 port,
862 862 0, NULL, 0,
863 863 &completion_reason, &cb_flags, 0);
864 864 mutex_enter(HUBD_MUTEX(hubd));
865 865 if (rval != USB_SUCCESS) {
866 866 USB_DPRINTF_L2(DPRINT_MASK_PM,
867 867 hubd->h_log_handle,
868 868 "ClearFeature(PortSuspend) fails"
869 869 "rval=%d cr=%d cb=0x%x", rval,
870 870 completion_reason, cb_flags);
871 871 } else {
872 872 /*
873 873 * As per spec section 11.9 and 7.1.7.7
874 874 * hub need to provide at least 20ms of
875 875 * resume signalling, and s/w provide 10ms of
876 876 * recovery time before accessing the port.
877 877 */
878 878 mutex_exit(HUBD_MUTEX(hubd));
879 879 delay(drv_usectohz(40000));
880 880 mutex_enter(HUBD_MUTEX(hubd));
881 881 (void) hubd_determine_port_status(hubd, port,
882 882 &status, &change, PORT_CHANGE_PSSC);
883 883
884 884 if ((status & PORT_STATUS_PSS) == 0) {
885 885 /* the port did finally resume */
886 886 retval = USB_SUCCESS;
887 887
888 888 break;
889 889 }
890 890 }
891 891 }
892 892
893 893 /* allow hotplug thread again */
894 894 hubd->h_hotplug_thread--;
895 895 hubd_start_polling(hubd, 0);
896 896
897 897 break;
898 898 case USB_DEV_DISCONNECTED:
899 899 /* Ignore - NO Operation */
900 900 retval = USB_SUCCESS;
901 901
902 902 break;
903 903 case USB_DEV_SUSPENDED:
904 904 case USB_DEV_PWRED_DOWN:
905 905 default:
906 906 USB_DPRINTF_L2(DPRINT_MASK_PM, hubd->h_log_handle,
907 907 "Improper state for port Resume");
908 908
909 909 break;
910 910 }
911 911 mutex_exit(HUBD_MUTEX(hubd));
912 912
913 913 return (retval);
914 914 }
915 915
916 916
917 917 /*
918 918 * suspend port depending on device state
919 919 */
920 920 static int
921 921 hubd_suspend_port(hubd_t *hubd, usb_port_t port)
922 922 {
923 923 int rval, retry;
924 924 int retval = USB_FAILURE;
925 925 usb_cr_t completion_reason;
926 926 usb_cb_flags_t cb_flags;
927 927 uint16_t status;
928 928 uint16_t change;
929 929
930 930 USB_DPRINTF_L4(DPRINT_MASK_PM, hubd->h_log_handle,
931 931 "hubd_suspend_port: port=%d", port);
932 932
933 933 mutex_enter(HUBD_MUTEX(hubd));
934 934
935 935 switch (hubd->h_dev_state) {
936 936 case USB_DEV_HUB_STATE_RECOVER:
937 937 /*
938 938 * When hubd's connect event callback posts a connect
939 939 * event to its child, it results in this busctl call
940 940 * which is valid
941 941 */
942 942 /* FALLTHRU */
943 943 case USB_DEV_HUB_CHILD_PWRLVL:
944 944 /*
945 945 * When one child is resuming, the other could timeout
946 946 * and go to low power mode, which is valid
947 947 */
948 948 /* FALLTHRU */
949 949 case USB_DEV_ONLINE:
950 950 hubd->h_hotplug_thread++;
951 951 hubd_stop_polling(hubd);
952 952
953 953 /*
954 954 * Some devices start an unprovoked resume. According to spec,
955 955 * normal resume time for port is 10ms. Wait for double that
956 956 * time, then check to be sure port is really suspended.
957 957 */
958 958 for (retry = 0; retry < HUBD_SUS_RES_RETRY; retry++) {
959 959 /* Now SetFeature(PortSuspend) */
960 960 mutex_exit(HUBD_MUTEX(hubd));
961 961 if ((rval = usb_pipe_sync_ctrl_xfer(hubd->h_dip,
962 962 hubd->h_default_pipe,
963 963 HUB_HANDLE_PORT_FEATURE_TYPE,
964 964 USB_REQ_SET_FEATURE,
965 965 CFS_PORT_SUSPEND,
966 966 port,
967 967 0, NULL, 0,
968 968 &completion_reason, &cb_flags, 0)) !=
969 969 USB_SUCCESS) {
970 970 USB_DPRINTF_L2(DPRINT_MASK_PM,
971 971 hubd->h_log_handle,
972 972 "SetFeature(PortSuspend) fails"
973 973 "rval=%d cr=%d cb=0x%x",
974 974 rval, completion_reason, cb_flags);
975 975 }
976 976
977 977 /*
978 978 * some devices start an unprovoked resume
979 979 * wait and check port status after some time
980 980 */
981 981 delay(drv_usectohz(20000));
982 982
983 983 /* either ways ack changes on the port */
984 984 mutex_enter(HUBD_MUTEX(hubd));
985 985 (void) hubd_determine_port_status(hubd, port,
986 986 &status, &change, PORT_CHANGE_PSSC);
987 987 if (status & PORT_STATUS_PSS) {
988 988 /* the port is indeed suspended */
989 989 retval = USB_SUCCESS;
990 990
991 991 break;
992 992 } else {
993 993 USB_DPRINTF_L0(DPRINT_MASK_PM,
994 994 hubd->h_log_handle,
995 995 "hubdi: port%d failed to be suspended!",
996 996 port);
997 997 }
998 998 }
999 999
1000 1000 hubd->h_hotplug_thread--;
1001 1001 hubd_start_polling(hubd, 0);
1002 1002
1003 1003 break;
1004 1004
1005 1005 case USB_DEV_DISCONNECTED:
1006 1006 /* Ignore - No Operation */
1007 1007 retval = USB_SUCCESS;
1008 1008
1009 1009 break;
1010 1010
1011 1011 case USB_DEV_SUSPENDED:
1012 1012 case USB_DEV_PWRED_DOWN:
1013 1013 default:
1014 1014 USB_DPRINTF_L2(DPRINT_MASK_PM, hubd->h_log_handle,
1015 1015 "Improper state for port Suspend");
1016 1016
1017 1017 break;
1018 1018 }
1019 1019 mutex_exit(HUBD_MUTEX(hubd));
1020 1020
1021 1021 return (retval);
1022 1022 }
1023 1023
1024 1024
1025 1025 /*
1026 1026 * child post attach/detach notifications
1027 1027 */
1028 1028 static void
1029 1029 hubd_post_attach(hubd_t *hubd, usb_port_t port, struct attachspec *as)
1030 1030 {
1031 1031 dev_info_t *dip;
1032 1032
1033 1033 USB_DPRINTF_L4(DPRINT_MASK_ATTA, hubd->h_log_handle,
1034 1034 "hubd_post_attach: port=%d result=%d",
1035 1035 port, as->result);
1036 1036
1037 1037 if (as->result == DDI_SUCCESS) {
1038 1038 /*
1039 1039 * Check if the child created wants to be power managed.
1040 1040 * If yes, the childs power level gets automatically tracked
1041 1041 * by DDI_CTLOPS_POWER busctl.
1042 1042 * If no, we set power of the new child by default
1043 1043 * to USB_DEV_OS_FULL_PWR. Because we should never suspend.
1044 1044 */
1045 1045 mutex_enter(HUBD_MUTEX(hubd));
1046 1046 dip = hubd->h_children_dips[port];
1047 1047 mutex_exit(HUBD_MUTEX(hubd));
1048 1048 if (DEVI(dip)->devi_pm_info == NULL) {
1049 1049 hubd_set_child_pwrlvl(hubd, port, USB_DEV_OS_FULL_PWR);
1050 1050 }
1051 1051 }
1052 1052 }
1053 1053
1054 1054
1055 1055 static void
1056 1056 hubd_post_detach(hubd_t *hubd, usb_port_t port, struct detachspec *ds)
1057 1057 {
1058 1058 USB_DPRINTF_L4(DPRINT_MASK_ATTA, hubd->h_log_handle,
1059 1059 "hubd_post_detach: port=%d result=%d", port, ds->result);
1060 1060
1061 1061 /*
1062 1062 * if the device is successfully detached and is the
1063 1063 * last device to detach, mark component as idle
1064 1064 */
1065 1065 mutex_enter(HUBD_MUTEX(hubd));
1066 1066 if (ds->result == DDI_SUCCESS) {
1067 1067 usba_device_t *usba_device = hubd->h_usba_devices[port];
1068 1068 dev_info_t *pdip = hubd->h_dip;
1069 1069 mutex_exit(HUBD_MUTEX(hubd));
1070 1070
1071 1071 usba_hubdi_incr_power_budget(pdip, usba_device);
1072 1072
1073 1073 /*
1074 1074 * We set power of the detached child
1075 1075 * to 0, so that we can suspend if all
1076 1076 * our children are gone
1077 1077 */
1078 1078 hubd_set_child_pwrlvl(hubd, port, USB_DEV_OS_PWR_OFF);
1079 1079
1080 1080 /* check for leaks on detaching */
1081 1081 if ((usba_device) && (ds->cmd == DDI_DETACH)) {
1082 1082 usba_check_for_leaks(usba_device);
1083 1083 }
1084 1084 } else {
1085 1085 mutex_exit(HUBD_MUTEX(hubd));
1086 1086 }
1087 1087 }
1088 1088
1089 1089
1090 1090 /*
1091 1091 * hubd_post_power
1092 1092 * After the child's power entry point has been called
1093 1093 * we record its power level in our local struct.
1094 1094 * If the device has powered off, we suspend port
1095 1095 */
1096 1096 static int
1097 1097 hubd_post_power(hubd_t *hubd, usb_port_t port, pm_bp_child_pwrchg_t *bpc,
1098 1098 int result)
1099 1099 {
1100 1100 int retval = USB_SUCCESS;
1101 1101
1102 1102 USB_DPRINTF_L4(DPRINT_MASK_PM, hubd->h_log_handle,
1103 1103 "hubd_post_power: port=%d", port);
1104 1104
1105 1105 if (result == DDI_SUCCESS) {
1106 1106
1107 1107 /* record this power in our local struct */
1108 1108 hubd_set_child_pwrlvl(hubd, port, bpc->bpc_nlevel);
1109 1109
1110 1110 if (bpc->bpc_nlevel == USB_DEV_OS_PWR_OFF) {
1111 1111
1112 1112 /* now suspend the port */
1113 1113 retval = hubd_suspend_port(hubd, port);
1114 1114 } else if (bpc->bpc_nlevel == USB_DEV_OS_FULL_PWR) {
1115 1115
1116 1116 /* make sure the port is resumed */
1117 1117 retval = hubd_resume_port(hubd, port);
1118 1118 }
1119 1119 } else {
1120 1120
1121 1121 /* record old power in our local struct */
1122 1122 hubd_set_child_pwrlvl(hubd, port, bpc->bpc_olevel);
1123 1123
1124 1124 if (bpc->bpc_olevel == USB_DEV_OS_PWR_OFF) {
1125 1125
1126 1126 /*
1127 1127 * As this device failed to transition from
1128 1128 * power off state, suspend the port again
1129 1129 */
1130 1130 retval = hubd_suspend_port(hubd, port);
1131 1131 }
1132 1132 }
1133 1133
1134 1134 return (retval);
1135 1135 }
1136 1136
1137 1137
1138 1138 /*
1139 1139 * bus ctl notifications are handled here, the rest goes up to root hub/hcd
1140 1140 */
1141 1141 static int
1142 1142 usba_hubdi_bus_ctl(dev_info_t *dip,
1143 1143 dev_info_t *rdip,
1144 1144 ddi_ctl_enum_t op,
1145 1145 void *arg,
1146 1146 void *result)
1147 1147 {
1148 1148 usba_device_t *hub_usba_device = usba_get_usba_device(rdip);
1149 1149 dev_info_t *root_hub_dip = hub_usba_device->usb_root_hub_dip;
1150 1150 struct attachspec *as;
1151 1151 struct detachspec *ds;
1152 1152 hubd_t *hubd;
1153 1153 usb_port_t port;
1154 1154 int circ, rval;
1155 1155 int retval = DDI_FAILURE;
1156 1156
1157 1157 hubd = hubd_get_soft_state(dip);
1158 1158
1159 1159 mutex_enter(HUBD_MUTEX(hubd));
1160 1160
1161 1161 /* flag that we are currently running bus_ctl */
1162 1162 hubd->h_bus_ctls++;
1163 1163 mutex_exit(HUBD_MUTEX(hubd));
1164 1164
1165 1165 USB_DPRINTF_L3(DPRINT_MASK_HUBDI, hubd->h_log_handle,
1166 1166 "usba_hubdi_bus_ctl:\n\t"
1167 1167 "dip=0x%p, rdip=0x%p, op=0x%x, arg=0x%p",
1168 1168 (void *)dip, (void *)rdip, op, arg);
1169 1169
1170 1170 switch (op) {
1171 1171 case DDI_CTLOPS_ATTACH:
1172 1172 as = (struct attachspec *)arg;
1173 1173 port = hubd_child_dip2port(hubd, rdip);
1174 1174
1175 1175 /* there is nothing to do at resume time */
1176 1176 if (as->cmd == DDI_RESUME) {
1177 1177 break;
1178 1178 }
1179 1179
1180 1180 /* serialize access */
1181 1181 ndi_devi_enter(hubd->h_dip, &circ);
1182 1182
1183 1183 switch (as->when) {
1184 1184 case DDI_PRE:
1185 1185 USB_DPRINTF_L4(DPRINT_MASK_PM, hubd->h_log_handle,
1186 1186 "DDI_PRE DDI_CTLOPS_ATTACH: dip=%p, port=%d",
1187 1187 (void *)rdip, port);
1188 1188
1189 1189 mutex_enter(HUBD_MUTEX(hubd));
1190 1190 hubd->h_port_state[port] |= HUBD_CHILD_ATTACHING;
1191 1191
1192 1192 /* Go busy here. Matching idle is DDI_POST case. */
1193 1193 (void) hubd_pm_busy_component(hubd, dip, 0);
1194 1194 mutex_exit(HUBD_MUTEX(hubd));
1195 1195
1196 1196 /*
1197 1197 * if we suspended the port previously
1198 1198 * because child went to low power state, and
1199 1199 * someone unloaded the driver, the port would
1200 1200 * still be suspended and needs to be resumed
1201 1201 */
1202 1202 rval = hubd_resume_port(hubd, port);
1203 1203 if (rval == USB_SUCCESS) {
1204 1204 retval = DDI_SUCCESS;
1205 1205 }
1206 1206
1207 1207 break;
1208 1208 case DDI_POST:
1209 1209 USB_DPRINTF_L4(DPRINT_MASK_PM, hubd->h_log_handle,
1210 1210 "DDI_POST DDI_CTLOPS_ATTACH: dip=%p, port=%d",
1211 1211 (void *)rdip, port);
1212 1212
1213 1213 mutex_enter(HUBD_MUTEX(hubd));
1214 1214 hubd->h_port_state[port] &= ~HUBD_CHILD_ATTACHING;
1215 1215 mutex_exit(HUBD_MUTEX(hubd));
1216 1216
1217 1217 hubd_post_attach(hubd, port, (struct attachspec *)arg);
1218 1218 retval = DDI_SUCCESS;
1219 1219 mutex_enter(HUBD_MUTEX(hubd));
1220 1220
1221 1221 /* Matching idle call for DDI_PRE busy call. */
1222 1222 (void) hubd_pm_idle_component(hubd, dip, 0);
1223 1223 mutex_exit(HUBD_MUTEX(hubd));
1224 1224 }
1225 1225 ndi_devi_exit(hubd->h_dip, circ);
1226 1226
1227 1227 break;
1228 1228 case DDI_CTLOPS_DETACH:
1229 1229 ds = (struct detachspec *)arg;
1230 1230 port = hubd_child_dip2port(hubd, rdip);
1231 1231
1232 1232 /* there is nothing to do at suspend time */
1233 1233 if (ds->cmd == DDI_SUSPEND) {
1234 1234 break;
1235 1235 }
1236 1236
1237 1237 /* serialize access */
1238 1238 ndi_devi_enter(hubd->h_dip, &circ);
1239 1239
1240 1240 switch (ds->when) {
1241 1241 case DDI_PRE:
1242 1242 USB_DPRINTF_L4(DPRINT_MASK_PM, hubd->h_log_handle,
1243 1243 "DDI_PRE DDI_CTLOPS_DETACH: dip=%p port=%d",
1244 1244 (void *)rdip, port);
1245 1245
1246 1246 mutex_enter(HUBD_MUTEX(hubd));
1247 1247 hubd->h_port_state[port] |= HUBD_CHILD_DETACHING;
1248 1248
1249 1249 /* Go busy here. Matching idle is DDI_POST case. */
1250 1250 (void) hubd_pm_busy_component(hubd, dip, 0);
1251 1251
1252 1252 mutex_exit(HUBD_MUTEX(hubd));
1253 1253 retval = DDI_SUCCESS;
1254 1254
1255 1255 break;
1256 1256 case DDI_POST:
1257 1257 USB_DPRINTF_L4(DPRINT_MASK_PM, hubd->h_log_handle,
1258 1258 "DDI_POST DDI_CTLOPS_DETACH: dip=%p port=%d",
1259 1259 (void *)rdip, port);
1260 1260
1261 1261 mutex_enter(HUBD_MUTEX(hubd));
1262 1262 hubd->h_port_state[port] &= ~HUBD_CHILD_DETACHING;
1263 1263 mutex_exit(HUBD_MUTEX(hubd));
1264 1264
1265 1265 /* Matching idle call for DDI_PRE busy call. */
1266 1266 hubd_post_detach(hubd, port, (struct detachspec *)arg);
1267 1267 retval = DDI_SUCCESS;
1268 1268 mutex_enter(HUBD_MUTEX(hubd));
1269 1269 (void) hubd_pm_idle_component(hubd, dip, 0);
1270 1270 mutex_exit(HUBD_MUTEX(hubd));
1271 1271
1272 1272 break;
1273 1273 }
1274 1274 ndi_devi_exit(hubd->h_dip, circ);
1275 1275
1276 1276 break;
1277 1277 default:
1278 1278 retval = usba_bus_ctl(root_hub_dip, rdip, op, arg, result);
1279 1279 }
1280 1280
1281 1281 /* decrement bus_ctls count */
1282 1282 mutex_enter(HUBD_MUTEX(hubd));
1283 1283 hubd->h_bus_ctls--;
1284 1284 ASSERT(hubd->h_bus_ctls >= 0);
1285 1285 mutex_exit(HUBD_MUTEX(hubd));
1286 1286
1287 1287 return (retval);
1288 1288 }
1289 1289
1290 1290 /*
1291 1291 * hubd_config_one:
1292 1292 * enumerate one child according to 'port'
1293 1293 */
1294 1294
1295 1295 static boolean_t
1296 1296 hubd_config_one(hubd_t *hubd, int port)
1297 1297 {
1298 1298 uint16_t status, change;
1299 1299 dev_info_t *hdip = hubd->h_dip;
1300 1300 dev_info_t *rh_dip = hubd->h_usba_device->usb_root_hub_dip;
1301 1301 boolean_t online_child = B_FALSE, found = B_FALSE;
1302 1302 int prh_circ, rh_circ, circ;
1303 1303
1304 1304 USB_DPRINTF_L4(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
1305 1305 "hubd_config_one: started, hubd_reset_port = 0x%x", port);
1306 1306
1307 1307 ndi_hold_devi(hdip); /* so we don't race with detach */
1308 1308
1309 1309 /*
1310 1310 * this ensures one config activity per system at a time.
1311 1311 * we enter the parent PCI node to have this serialization.
1312 1312 * this also excludes ioctls and deathrow thread
1313 1313 */
1314 1314 ndi_devi_enter(ddi_get_parent(rh_dip), &prh_circ);
1315 1315 ndi_devi_enter(rh_dip, &rh_circ);
1316 1316
1317 1317 /* exclude other threads */
1318 1318 ndi_devi_enter(hdip, &circ);
1319 1319 mutex_enter(HUBD_MUTEX(hubd));
1320 1320
1321 1321 hubd_pm_busy_component(hubd, hubd->h_dip, 0);
1322 1322
1323 1323 if (!hubd->h_children_dips[port]) {
1324 1324
1325 1325 (void) hubd_determine_port_status(hubd, port,
1326 1326 &status, &change, HUBD_ACK_ALL_CHANGES);
1327 1327
1328 1328 if (status & PORT_STATUS_CCS) {
1329 1329 online_child |= (hubd_handle_port_connect(hubd,
1330 1330 port) == USB_SUCCESS);
1331 1331 found = online_child;
1332 1332 }
1333 1333 } else {
1334 1334 found = B_TRUE;
1335 1335 }
1336 1336
1337 1337 mutex_exit(HUBD_MUTEX(hubd));
1338 1338
1339 1339 ndi_devi_exit(hdip, circ);
1340 1340 ndi_devi_exit(rh_dip, rh_circ);
1341 1341 ndi_devi_exit(ddi_get_parent(rh_dip), prh_circ);
1342 1342
1343 1343 if (online_child) {
1344 1344 USB_DPRINTF_L3(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
1345 1345 "hubd_config_one: onlining child");
1346 1346
1347 1347 (void) ndi_devi_online(hubd->h_dip, 0);
1348 1348 }
1349 1349
1350 1350 mutex_enter(HUBD_MUTEX(hubd));
1351 1351
1352 1352 (void) hubd_pm_idle_component(hubd, hubd->h_dip, 0);
1353 1353
1354 1354 USB_DPRINTF_L4(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
1355 1355 "hubd_config_one: exit");
1356 1356
1357 1357 mutex_exit(HUBD_MUTEX(hubd));
1358 1358
1359 1359 ndi_rele_devi(hdip);
1360 1360
1361 1361 return (found);
1362 1362 }
1363 1363
1364 1364 /*
1365 1365 * bus enumeration entry points
1366 1366 */
1367 1367 static int
1368 1368 hubd_bus_config(dev_info_t *dip, uint_t flag, ddi_bus_config_op_t op,
1369 1369 void *arg, dev_info_t **child)
1370 1370 {
1371 1371 hubd_t *hubd = hubd_get_soft_state(dip);
1372 1372 int rval, circ;
1373 1373 long port;
1374 1374
1375 1375 USB_DPRINTF_L4(DPRINT_MASK_PM, hubd->h_log_handle,
1376 1376 "hubd_bus_config: op=%d", op);
1377 1377
1378 1378 if (hubdi_bus_config_debug) {
1379 1379 flag |= NDI_DEVI_DEBUG;
1380 1380 }
1381 1381
1382 1382 if (op == BUS_CONFIG_ONE) {
1383 1383 boolean_t found;
1384 1384 char cname[80];
1385 1385 char *name, *addr;
1386 1386
1387 1387 USB_DPRINTF_L2(DPRINT_MASK_PM, hubd->h_log_handle,
1388 1388 "hubd_bus_config: op=%d (BUS_CONFIG_ONE)", op);
1389 1389
1390 1390 (void) snprintf(cname, 80, "%s", (char *)arg);
1391 1391 /* split name into "name@addr" parts */
1392 1392 i_ddi_parse_name(cname, &name, &addr, NULL);
1393 1393 if (addr && *addr) {
1394 1394 (void) ddi_strtol(addr, NULL, 16, &port);
1395 1395 } else {
1396 1396 return (NDI_FAILURE);
1397 1397 }
1398 1398
1399 1399 found = hubd_config_one(hubd, port);
1400 1400
1401 1401 if (found == 0) {
1402 1402 return (NDI_FAILURE);
1403 1403 }
1404 1404
1405 1405 }
1406 1406 ndi_devi_enter(hubd->h_dip, &circ);
1407 1407 rval = ndi_busop_bus_config(dip, flag, op, arg, child, 0);
1408 1408 ndi_devi_exit(hubd->h_dip, circ);
1409 1409
1410 1410 return (rval);
1411 1411 }
1412 1412
1413 1413
1414 1414 static int
1415 1415 hubd_bus_unconfig(dev_info_t *dip, uint_t flag, ddi_bus_config_op_t op,
1416 1416 void *arg)
1417 1417 {
1418 1418 hubd_t *hubd = hubd_get_soft_state(dip);
1419 1419 dev_info_t *cdip;
1420 1420 usb_port_t port;
1421 1421 int circ;
1422 1422 int rval;
1423 1423
1424 1424 USB_DPRINTF_L4(DPRINT_MASK_PM, hubd->h_log_handle,
1425 1425 "hubd_bus_unconfig: op=%d", op);
1426 1426
1427 1427 if (hubdi_bus_config_debug) {
1428 1428 flag |= NDI_DEVI_DEBUG;
1429 1429 }
1430 1430
1431 1431 if ((op == BUS_UNCONFIG_ALL) && (flag & NDI_AUTODETACH) == 0) {
1432 1432 flag |= NDI_DEVI_REMOVE;
1433 1433 }
1434 1434
1435 1435 /* serialize access */
1436 1436 ndi_devi_enter(dip, &circ);
1437 1437
1438 1438 rval = ndi_busop_bus_unconfig(dip, flag, op, arg);
1439 1439
1440 1440 /* logically zap children's list */
1441 1441 mutex_enter(HUBD_MUTEX(hubd));
1442 1442 for (port = 1; port <= hubd->h_hub_descr.bNbrPorts; port++) {
1443 1443 hubd->h_port_state[port] |= HUBD_CHILD_ZAP;
1444 1444 }
1445 1445 mutex_exit(HUBD_MUTEX(hubd));
1446 1446
1447 1447 /* fill in what's left */
1448 1448 for (cdip = ddi_get_child(dip); cdip;
1449 1449 cdip = ddi_get_next_sibling(cdip)) {
1450 1450 usba_device_t *usba_device = usba_get_usba_device(cdip);
1451 1451
1452 1452 if (usba_device == NULL) {
1453 1453
1454 1454 continue;
1455 1455 }
1456 1456 mutex_enter(HUBD_MUTEX(hubd));
1457 1457 port = usba_device->usb_port;
1458 1458 hubd->h_children_dips[port] = cdip;
1459 1459 hubd->h_port_state[port] &= ~HUBD_CHILD_ZAP;
1460 1460 mutex_exit(HUBD_MUTEX(hubd));
1461 1461 }
1462 1462
1463 1463 /* physically zap the children we didn't find */
1464 1464 mutex_enter(HUBD_MUTEX(hubd));
1465 1465 for (port = 1; port <= hubd->h_hub_descr.bNbrPorts; port++) {
1466 1466 if (hubd->h_port_state[port] & HUBD_CHILD_ZAP) {
1467 1467 /* zap the dip and usba_device structure as well */
1468 1468 hubd_free_usba_device(hubd, hubd->h_usba_devices[port]);
1469 1469 hubd->h_children_dips[port] = NULL;
1470 1470 hubd->h_port_state[port] &= ~HUBD_CHILD_ZAP;
1471 1471 }
1472 1472 }
1473 1473 mutex_exit(HUBD_MUTEX(hubd));
1474 1474
1475 1475 ndi_devi_exit(dip, circ);
1476 1476
1477 1477 USB_DPRINTF_L4(DPRINT_MASK_PM, hubd->h_log_handle,
1478 1478 "hubd_bus_unconfig: rval=%d", rval);
1479 1479
1480 1480 return (rval);
1481 1481 }
1482 1482
1483 1483
1484 1484 /* bus_power entry point */
1485 1485 static int
1486 1486 hubd_bus_power(dev_info_t *dip, void *impl_arg, pm_bus_power_op_t op,
1487 1487 void *arg, void *result)
1488 1488 {
1489 1489 hubd_t *hubd;
1490 1490 int rval, pwrup_res;
1491 1491 usb_port_t port;
1492 1492 int retval = DDI_FAILURE;
1493 1493 pm_bp_child_pwrchg_t *bpc;
1494 1494 pm_bp_nexus_pwrup_t bpn;
1495 1495
1496 1496 hubd = hubd_get_soft_state(dip);
1497 1497
1498 1498 USB_DPRINTF_L4(DPRINT_MASK_HUBDI, hubd->h_log_handle,
1499 1499 "hubd_bus_power: dip=%p, impl_arg=%p, power_op=%d, arg=%p, "
1500 1500 "result=%d\n", (void *)dip, impl_arg, op, arg, *(int *)result);
1501 1501
1502 1502 bpc = (pm_bp_child_pwrchg_t *)arg;
1503 1503
1504 1504 mutex_enter(HUBD_MUTEX(hubd));
1505 1505 hubd->h_bus_pwr++;
1506 1506 mutex_exit(HUBD_MUTEX(hubd));
1507 1507
1508 1508 switch (op) {
1509 1509 case BUS_POWER_PRE_NOTIFICATION:
1510 1510 port = hubd_child_dip2port(hubd, bpc->bpc_dip);
1511 1511 USB_DPRINTF_L3(DPRINT_MASK_HUBDI, hubd->h_log_handle,
1512 1512 "hubd_bus_power: BUS_POWER_PRE_NOTIFICATION, port=%d",
1513 1513 port);
1514 1514
1515 1515 /* go to full power if we are powered down */
1516 1516 mutex_enter(HUBD_MUTEX(hubd));
1517 1517
1518 1518 /*
1519 1519 * If this case completes normally, idle will be in
1520 1520 * hubd_bus_power / BUS_POWER_POST_NOTIFICATION
1521 1521 */
1522 1522 hubd_pm_busy_component(hubd, dip, 0);
1523 1523
1524 1524 /*
1525 1525 * raise power only if we have created the components
1526 1526 * and are currently in low power
1527 1527 */
1528 1528 if ((hubd->h_dev_state == USB_DEV_PWRED_DOWN) &&
1529 1529 hubd->h_hubpm->hubp_wakeup_enabled) {
1530 1530 mutex_exit(HUBD_MUTEX(hubd));
1531 1531
1532 1532 bpn.bpn_comp = 0;
1533 1533 bpn.bpn_dip = dip;
1534 1534 bpn.bpn_level = USB_DEV_OS_FULL_PWR;
1535 1535 bpn.bpn_private = bpc->bpc_private;
1536 1536
1537 1537 rval = pm_busop_bus_power(dip, impl_arg,
1538 1538 BUS_POWER_NEXUS_PWRUP, (void *)&bpn,
1539 1539 (void *)&pwrup_res);
1540 1540
1541 1541 if (rval != DDI_SUCCESS || pwrup_res != DDI_SUCCESS) {
1542 1542 mutex_enter(HUBD_MUTEX(hubd));
1543 1543 hubd_pm_idle_component(hubd, dip, 0);
1544 1544 mutex_exit(HUBD_MUTEX(hubd));
1545 1545
1546 1546 break;
1547 1547 }
1548 1548 mutex_enter(HUBD_MUTEX(hubd));
1549 1549 }
1550 1550
1551 1551 /* indicate that child is changing power level */
1552 1552 hubd->h_port_state[port] |= HUBD_CHILD_PWRLVL_CHNG;
1553 1553 mutex_exit(HUBD_MUTEX(hubd));
1554 1554
1555 1555 if ((bpc->bpc_olevel == 0) &&
1556 1556 (bpc->bpc_nlevel > bpc->bpc_olevel)) {
1557 1557 /*
1558 1558 * this child is transitioning from power off
1559 1559 * to power on state - resume port
1560 1560 */
1561 1561 rval = hubd_resume_port(hubd, port);
1562 1562 if (rval == USB_SUCCESS) {
1563 1563 retval = DDI_SUCCESS;
1564 1564 } else {
1565 1565 /* reset this flag on failure */
1566 1566 mutex_enter(HUBD_MUTEX(hubd));
1567 1567 hubd->h_port_state[port] &=
1568 1568 ~HUBD_CHILD_PWRLVL_CHNG;
1569 1569 hubd_pm_idle_component(hubd, dip, 0);
1570 1570 mutex_exit(HUBD_MUTEX(hubd));
1571 1571 }
1572 1572 } else {
1573 1573 retval = DDI_SUCCESS;
1574 1574 }
1575 1575
1576 1576 break;
1577 1577 case BUS_POWER_POST_NOTIFICATION:
1578 1578 port = hubd_child_dip2port(hubd, bpc->bpc_dip);
1579 1579 USB_DPRINTF_L3(DPRINT_MASK_HUBDI, hubd->h_log_handle,
1580 1580 "hubd_bus_power: BUS_POWER_POST_NOTIFICATION, port=%d",
1581 1581 port);
1582 1582
1583 1583 mutex_enter(HUBD_MUTEX(hubd));
1584 1584 hubd->h_port_state[port] &= ~HUBD_CHILD_PWRLVL_CHNG;
1585 1585 mutex_exit(HUBD_MUTEX(hubd));
1586 1586
1587 1587 /* record child's pwr and suspend port if required */
1588 1588 rval = hubd_post_power(hubd, port, bpc, *(int *)result);
1589 1589 if (rval == USB_SUCCESS) {
1590 1590
1591 1591 retval = DDI_SUCCESS;
1592 1592 }
1593 1593
1594 1594 mutex_enter(HUBD_MUTEX(hubd));
1595 1595
1596 1596 /*
1597 1597 * Matching idle for the busy in
1598 1598 * hubd_bus_power / BUS_POWER_PRE_NOTIFICATION
1599 1599 */
1600 1600 hubd_pm_idle_component(hubd, dip, 0);
1601 1601
1602 1602 mutex_exit(HUBD_MUTEX(hubd));
1603 1603
1604 1604 break;
1605 1605 default:
1606 1606 retval = pm_busop_bus_power(dip, impl_arg, op, arg, result);
1607 1607
1608 1608 break;
1609 1609 }
1610 1610
1611 1611 mutex_enter(HUBD_MUTEX(hubd));
1612 1612 hubd->h_bus_pwr--;
1613 1613 mutex_exit(HUBD_MUTEX(hubd));
1614 1614
1615 1615 return (retval);
1616 1616 }
1617 1617
1618 1618
1619 1619 /*
1620 1620 * functions to handle power transition for OS levels 0 -> 3
1621 1621 */
1622 1622 static int
1623 1623 hubd_pwrlvl0(hubd_t *hubd)
1624 1624 {
1625 1625 hub_power_t *hubpm;
1626 1626
1627 1627 /* We can't power down if hotplug thread is running */
1628 1628 if (hubd->h_hotplug_thread || hubd->h_hubpm->hubp_busy_pm ||
1629 1629 (hubd_can_suspend(hubd) == USB_FAILURE)) {
1630 1630
1631 1631 return (USB_FAILURE);
1632 1632 }
1633 1633
1634 1634 switch (hubd->h_dev_state) {
1635 1635 case USB_DEV_ONLINE:
1636 1636 hubpm = hubd->h_hubpm;
1637 1637
1638 1638 /*
1639 1639 * To avoid race with bus_power pre_notify on check over
1640 1640 * dev_state, we need to correctly set the dev state
1641 1641 * before the mutex is dropped in stop polling.
1642 1642 */
1643 1643 hubd->h_dev_state = USB_DEV_PWRED_DOWN;
1644 1644 hubpm->hubp_current_power = USB_DEV_OS_PWR_OFF;
1645 1645
1646 1646 /*
1647 1647 * if we are the root hub, do not stop polling
1648 1648 * otherwise, we will never see a resume
1649 1649 */
1650 1650 if (usba_is_root_hub(hubd->h_dip)) {
1651 1651 /* place holder to implement Global Suspend */
1652 1652 USB_DPRINTF_L2(DPRINT_MASK_PM, hubd->h_log_handle,
1653 1653 "Global Suspend: Not Yet Implemented");
1654 1654 } else {
1655 1655 hubd_stop_polling(hubd);
1656 1656 }
1657 1657
1658 1658 /* Issue USB D3 command to the device here */
1659 1659 (void) usb_set_device_pwrlvl3(hubd->h_dip);
1660 1660
1661 1661 break;
1662 1662 case USB_DEV_DISCONNECTED:
1663 1663 case USB_DEV_SUSPENDED:
1664 1664 case USB_DEV_PWRED_DOWN:
1665 1665 default:
1666 1666
1667 1667 break;
1668 1668 }
1669 1669
1670 1670 return (USB_SUCCESS);
1671 1671 }
1672 1672
1673 1673
1674 1674 /* ARGSUSED */
1675 1675 static int
1676 1676 hubd_pwrlvl1(hubd_t *hubd)
1677 1677 {
1678 1678 /* Issue USB D2 command to the device here */
1679 1679 (void) usb_set_device_pwrlvl2(hubd->h_dip);
1680 1680
1681 1681 return (USB_FAILURE);
1682 1682 }
1683 1683
1684 1684
1685 1685 /* ARGSUSED */
1686 1686 static int
1687 1687 hubd_pwrlvl2(hubd_t *hubd)
1688 1688 {
1689 1689 /* Issue USB D1 command to the device here */
1690 1690 (void) usb_set_device_pwrlvl1(hubd->h_dip);
1691 1691
1692 1692 return (USB_FAILURE);
1693 1693 }
1694 1694
1695 1695
1696 1696 static int
1697 1697 hubd_pwrlvl3(hubd_t *hubd)
1698 1698 {
1699 1699 hub_power_t *hubpm;
1700 1700 int rval;
1701 1701
1702 1702 USB_DPRINTF_L2(DPRINT_MASK_PM, hubd->h_log_handle, "hubd_pwrlvl3");
1703 1703
1704 1704 hubpm = hubd->h_hubpm;
1705 1705 switch (hubd->h_dev_state) {
1706 1706 case USB_DEV_PWRED_DOWN:
1707 1707 ASSERT(hubpm->hubp_current_power == USB_DEV_OS_PWR_OFF);
1708 1708 if (usba_is_root_hub(hubd->h_dip)) {
1709 1709 /* implement global resume here */
1710 1710 USB_DPRINTF_L2(DPRINT_MASK_PM,
1711 1711 hubd->h_log_handle,
1712 1712 "Global Resume: Not Yet Implemented");
1713 1713 }
1714 1714 /* Issue USB D0 command to the device here */
1715 1715 rval = usb_set_device_pwrlvl0(hubd->h_dip);
1716 1716 ASSERT(rval == USB_SUCCESS);
1717 1717 hubd->h_dev_state = USB_DEV_ONLINE;
1718 1718 hubpm->hubp_current_power = USB_DEV_OS_FULL_PWR;
1719 1719 hubpm->hubp_time_at_full_power = gethrtime();
1720 1720 hubd_start_polling(hubd, 0);
1721 1721
1722 1722 /* FALLTHRU */
1723 1723 case USB_DEV_ONLINE:
1724 1724 /* we are already in full power */
1725 1725
1726 1726 /* FALLTHRU */
1727 1727 case USB_DEV_DISCONNECTED:
1728 1728 case USB_DEV_SUSPENDED:
1729 1729 /*
1730 1730 * PM framework tries to put you in full power
1731 1731 * during system shutdown. If we are disconnected
1732 1732 * return success. Also, we should not change state
1733 1733 * when we are disconnected or suspended or about to
1734 1734 * transition to that state
1735 1735 */
1736 1736
1737 1737 return (USB_SUCCESS);
1738 1738 default:
1739 1739 USB_DPRINTF_L2(DPRINT_MASK_PM, hubd->h_log_handle,
1740 1740 "hubd_pwrlvl3: Illegal dev_state=%d", hubd->h_dev_state);
1741 1741
1742 1742 return (USB_FAILURE);
1743 1743 }
1744 1744 }
1745 1745
1746 1746
1747 1747 /* power entry point */
1748 1748 /* ARGSUSED */
1749 1749 int
1750 1750 usba_hubdi_power(dev_info_t *dip, int comp, int level)
1751 1751 {
1752 1752 hubd_t *hubd;
1753 1753 hub_power_t *hubpm;
1754 1754 int retval;
1755 1755 int circ;
1756 1756
1757 1757 hubd = hubd_get_soft_state(dip);
1758 1758 USB_DPRINTF_L3(DPRINT_MASK_HUBDI, hubd->h_log_handle,
1759 1759 "usba_hubdi_power: level=%d", level);
1760 1760
1761 1761 ndi_devi_enter(dip, &circ);
1762 1762
1763 1763 mutex_enter(HUBD_MUTEX(hubd));
1764 1764 hubpm = hubd->h_hubpm;
1765 1765
1766 1766 /* check if we are transitioning to a legal power level */
1767 1767 if (USB_DEV_PWRSTATE_OK(hubpm->hubp_pwr_states, level)) {
1768 1768 USB_DPRINTF_L2(DPRINT_MASK_HUBDI, hubd->h_log_handle,
1769 1769 "usba_hubdi_power: illegal power level=%d "
1770 1770 "hubp_pwr_states=0x%x", level, hubpm->hubp_pwr_states);
1771 1771 mutex_exit(HUBD_MUTEX(hubd));
1772 1772
1773 1773 ndi_devi_exit(dip, circ);
1774 1774
1775 1775 return (DDI_FAILURE);
1776 1776 }
1777 1777
1778 1778 switch (level) {
1779 1779 case USB_DEV_OS_PWR_OFF:
1780 1780 retval = hubd_pwrlvl0(hubd);
1781 1781
1782 1782 break;
1783 1783 case USB_DEV_OS_PWR_1:
1784 1784 retval = hubd_pwrlvl1(hubd);
1785 1785
1786 1786 break;
1787 1787 case USB_DEV_OS_PWR_2:
1788 1788 retval = hubd_pwrlvl2(hubd);
1789 1789
1790 1790 break;
1791 1791 case USB_DEV_OS_FULL_PWR:
1792 1792 retval = hubd_pwrlvl3(hubd);
1793 1793
1794 1794 break;
1795 1795 }
1796 1796 mutex_exit(HUBD_MUTEX(hubd));
1797 1797
1798 1798 ndi_devi_exit(dip, circ);
1799 1799
1800 1800 return ((retval == USB_SUCCESS) ? DDI_SUCCESS : DDI_FAILURE);
1801 1801 }
1802 1802
1803 1803
1804 1804 /* power entry point for the root hub */
1805 1805 int
1806 1806 usba_hubdi_root_hub_power(dev_info_t *dip, int comp, int level)
1807 1807 {
1808 1808 return (usba_hubdi_power(dip, comp, level));
1809 1809 }
1810 1810
1811 1811
1812 1812 /*
1813 1813 * standard driver entry points support code
1814 1814 */
1815 1815 int
1816 1816 usba_hubdi_attach(dev_info_t *dip, ddi_attach_cmd_t cmd)
1817 1817 {
1818 1818 int instance = ddi_get_instance(dip);
1819 1819 hubd_t *hubd = NULL;
1820 1820 int i, rval;
1821 1821 int minor;
1822 1822 uint8_t ports_count;
1823 1823 char *log_name = NULL;
1824 1824 const char *root_hub_drvname;
1825 1825 usb_ep_data_t *ep_data;
1826 1826 usba_device_t *child_ud = NULL;
1827 1827 usb_dev_descr_t *usb_dev_descr;
1828 1828 usb_port_status_t parent_port_status, child_port_status;
1829 1829
1830 1830 USB_DPRINTF_L4(DPRINT_MASK_ATTA, hubdi_log_handle,
1831 1831 "hubd_attach instance %d, cmd=0x%x", instance, cmd);
1832 1832
1833 1833 switch (cmd) {
1834 1834 case DDI_ATTACH:
1835 1835
1836 1836 break;
1837 1837 case DDI_RESUME:
1838 1838 hubd_cpr_resume(dip);
1839 1839
1840 1840 return (DDI_SUCCESS);
1841 1841 default:
1842 1842 return (DDI_FAILURE);
1843 1843 }
1844 1844
1845 1845 /*
1846 1846 * Allocate softc information.
1847 1847 */
1848 1848 if (usba_is_root_hub(dip)) {
1849 1849 /* soft state has already been allocated */
1850 1850 hubd = hubd_get_soft_state(dip);
1851 1851 minor = HUBD_IS_ROOT_HUB;
1852 1852
1853 1853 /* generate readable labels for different root hubs */
1854 1854 root_hub_drvname = ddi_driver_name(dip);
1855 1855 if (strcmp(root_hub_drvname, "ehci") == 0) {
1856 1856 log_name = "eusb";
1857 1857 } else if (strcmp(root_hub_drvname, "uhci") == 0) {
1858 1858 log_name = "uusb";
1859 1859 } else {
1860 1860 /* std. for ohci */
1861 1861 log_name = "usb";
1862 1862 }
1863 1863 } else {
1864 1864 rval = ddi_soft_state_zalloc(hubd_statep, instance);
1865 1865 minor = 0;
1866 1866
1867 1867 if (rval != DDI_SUCCESS) {
1868 1868 USB_DPRINTF_L2(DPRINT_MASK_ATTA, hubdi_log_handle,
1869 1869 "cannot allocate soft state (%d)", instance);
1870 1870 goto fail;
1871 1871 }
1872 1872
1873 1873 hubd = hubd_get_soft_state(dip);
1874 1874 if (hubd == NULL) {
1875 1875 goto fail;
1876 1876 }
1877 1877 }
1878 1878
1879 1879 hubd->h_log_handle = usb_alloc_log_hdl(dip, log_name, &hubd_errlevel,
1880 1880 &hubd_errmask, &hubd_instance_debug, 0);
1881 1881
1882 1882 hubd->h_usba_device = child_ud = usba_get_usba_device(dip);
1883 1883 hubd->h_dip = dip;
1884 1884 hubd->h_instance = instance;
1885 1885
1886 1886 mutex_enter(&child_ud->usb_mutex);
1887 1887 child_port_status = child_ud->usb_port_status;
1888 1888 usb_dev_descr = child_ud->usb_dev_descr;
1889 1889 parent_port_status = (child_ud->usb_hs_hub_usba_dev) ?
1890 1890 child_ud->usb_hs_hub_usba_dev->usb_port_status : 0;
1891 1891 mutex_exit(&child_ud->usb_mutex);
1892 1892
1893 1893 if ((child_port_status == USBA_FULL_SPEED_DEV) &&
1894 1894 (parent_port_status == USBA_HIGH_SPEED_DEV) &&
1895 1895 (usb_dev_descr->bcdUSB == 0x100)) {
1896 1896 USB_DPRINTF_L0(DPRINT_MASK_ATTA, hubd->h_log_handle,
1897 1897 "Use of a USB1.0 hub behind a high speed port may "
1898 1898 "cause unexpected failures");
1899 1899 }
1900 1900
1901 1901 hubd->h_pipe_policy.pp_max_async_reqs = 1;
1902 1902
1903 1903 /* register with USBA as client driver */
1904 1904 if (usb_client_attach(dip, USBDRV_VERSION, 0) != USB_SUCCESS) {
1905 1905 USB_DPRINTF_L2(DPRINT_MASK_ATTA, hubd->h_log_handle,
1906 1906 "client attach failed");
1907 1907
1908 1908 goto fail;
1909 1909 }
1910 1910
1911 1911 if (usb_get_dev_data(dip, &hubd->h_dev_data,
1912 1912 USB_PARSE_LVL_IF, 0) != USB_SUCCESS) {
1913 1913 USB_DPRINTF_L2(DPRINT_MASK_ATTA, hubd->h_log_handle,
1914 1914 "cannot get dev_data");
1915 1915
1916 1916 goto fail;
1917 1917 }
1918 1918
1919 1919 if ((ep_data = usb_lookup_ep_data(dip, hubd->h_dev_data,
1920 1920 hubd->h_dev_data->dev_curr_if, 0, 0,
1921 1921 (uint_t)USB_EP_ATTR_INTR, (uint_t)USB_EP_DIR_IN)) == NULL) {
1922 1922 USB_DPRINTF_L2(DPRINT_MASK_ATTA, hubd->h_log_handle,
1923 1923 "no interrupt IN endpoint found");
1924 1924
1925 1925 goto fail;
1926 1926 }
1927 1927
1928 1928 hubd->h_ep1_descr = ep_data->ep_descr;
1929 1929 hubd->h_default_pipe = hubd->h_dev_data->dev_default_ph;
1930 1930
1931 1931 mutex_init(HUBD_MUTEX(hubd), NULL, MUTEX_DRIVER,
1932 1932 hubd->h_dev_data->dev_iblock_cookie);
1933 1933 cv_init(&hubd->h_cv_reset_port, NULL, CV_DRIVER, NULL);
1934 1934 cv_init(&hubd->h_cv_hotplug_dev, NULL, CV_DRIVER, NULL);
1935 1935
1936 1936 hubd->h_init_state |= HUBD_LOCKS_DONE;
1937 1937
1938 1938 usb_free_descr_tree(dip, hubd->h_dev_data);
1939 1939
1940 1940 /*
1941 1941 * register this hub instance with usba
1942 1942 */
1943 1943 rval = usba_hubdi_register(dip, 0);
1944 1944 if (rval != USB_SUCCESS) {
1945 1945 USB_DPRINTF_L2(DPRINT_MASK_ATTA, hubd->h_log_handle,
1946 1946 "usba_hubdi_register failed");
1947 1947 goto fail;
1948 1948 }
1949 1949
1950 1950 mutex_enter(HUBD_MUTEX(hubd));
1951 1951 hubd->h_init_state |= HUBD_HUBDI_REGISTERED;
1952 1952 hubd->h_dev_state = USB_DEV_ONLINE;
1953 1953 mutex_exit(HUBD_MUTEX(hubd));
1954 1954
1955 1955 /* now create components to power manage this device */
1956 1956 hubd_create_pm_components(dip, hubd);
1957 1957
1958 1958 /*
1959 1959 * Event handling: definition and registration
1960 1960 *
1961 1961 * first the definition:
1962 1962 * get event handle
1963 1963 */
1964 1964 (void) ndi_event_alloc_hdl(dip, 0, &hubd->h_ndi_event_hdl, NDI_SLEEP);
1965 1965
1966 1966 /* bind event set to the handle */
1967 1967 if (ndi_event_bind_set(hubd->h_ndi_event_hdl, &hubd_ndi_events,
1968 1968 NDI_SLEEP)) {
1969 1969 USB_DPRINTF_L3(DPRINT_MASK_ATTA, hubd->h_log_handle,
1970 1970 "binding event set failed");
1971 1971
1972 1972 goto fail;
1973 1973 }
1974 1974
1975 1975 /* event registration */
1976 1976 if (hubd_register_events(hubd) != USB_SUCCESS) {
1977 1977 USB_DPRINTF_L2(DPRINT_MASK_ATTA, hubd->h_log_handle,
1978 1978 "hubd_register_events failed");
1979 1979
1980 1980 goto fail;
1981 1981 }
1982 1982
1983 1983 mutex_enter(HUBD_MUTEX(hubd));
1984 1984 hubd->h_init_state |= HUBD_EVENTS_REGISTERED;
1985 1985
1986 1986 if ((hubd_get_hub_descriptor(hubd)) != USB_SUCCESS) {
1987 1987 mutex_exit(HUBD_MUTEX(hubd));
1988 1988
1989 1989 goto fail;
1990 1990 }
1991 1991
1992 1992 if (ddi_prop_exists(DDI_DEV_T_ANY, dip,
1993 1993 (DDI_PROP_DONTPASS | DDI_PROP_NOTPROM),
1994 1994 "hub-ignore-power-budget") == 1) {
1995 1995 hubd->h_ignore_pwr_budget = B_TRUE;
1996 1996 } else {
1997 1997 hubd->h_ignore_pwr_budget = B_FALSE;
1998 1998
1999 1999 /* initialize hub power budget variables */
2000 2000 if (hubd_init_power_budget(hubd) != USB_SUCCESS) {
2001 2001 USB_DPRINTF_L2(DPRINT_MASK_ATTA, hubd->h_log_handle,
2002 2002 "hubd_init_power_budget failed");
2003 2003 mutex_exit(HUBD_MUTEX(hubd));
2004 2004
2005 2005 goto fail;
2006 2006 }
2007 2007 }
2008 2008
2009 2009 /* initialize and create children */
2010 2010 if (hubd_check_ports(hubd) != USB_SUCCESS) {
2011 2011 USB_DPRINTF_L2(DPRINT_MASK_ATTA, hubd->h_log_handle,
2012 2012 "hubd_check_ports failed");
2013 2013 mutex_exit(HUBD_MUTEX(hubd));
2014 2014
2015 2015 goto fail;
2016 2016 }
2017 2017
2018 2018 /*
2019 2019 * create cfgadm nodes
2020 2020 */
2021 2021 hubd->h_ancestry_str = (char *)kmem_zalloc(HUBD_APID_NAMELEN, KM_SLEEP);
2022 2022 hubd_get_ancestry_str(hubd);
2023 2023
2024 2024 USB_DPRINTF_L4(DPRINT_MASK_ATTA, hubd->h_log_handle,
2025 2025 "#ports=0x%x", hubd->h_hub_descr.bNbrPorts);
2026 2026
2027 2027 for (i = 1; i <= hubd->h_hub_descr.bNbrPorts; i++) {
2028 2028 char ap_name[HUBD_APID_NAMELEN];
2029 2029
2030 2030 (void) snprintf(ap_name, HUBD_APID_NAMELEN, "%s%d",
2031 2031 hubd->h_ancestry_str, i);
2032 2032 USB_DPRINTF_L4(DPRINT_MASK_ATTA, hubd->h_log_handle,
2033 2033 "ap_name=%s", ap_name);
2034 2034
2035 2035 if (ddi_create_minor_node(dip, ap_name, S_IFCHR, instance,
2036 2036 DDI_NT_USB_ATTACHMENT_POINT, 0) != DDI_SUCCESS) {
2037 2037 USB_DPRINTF_L2(DPRINT_MASK_ATTA, hubd->h_log_handle,
2038 2038 "cannot create attachment point node (%d)",
2039 2039 instance);
2040 2040 mutex_exit(HUBD_MUTEX(hubd));
2041 2041
2042 2042 goto fail;
2043 2043 }
2044 2044 }
2045 2045
2046 2046 ports_count = hubd->h_hub_descr.bNbrPorts;
2047 2047 mutex_exit(HUBD_MUTEX(hubd));
2048 2048
2049 2049 /* create minor nodes */
2050 2050 if (ddi_create_minor_node(dip, "hubd", S_IFCHR,
2051 2051 instance | minor, DDI_NT_NEXUS, 0) != DDI_SUCCESS) {
2052 2052
2053 2053 USB_DPRINTF_L2(DPRINT_MASK_ATTA, hubd->h_log_handle,
2054 2054 "cannot create devctl minor node (%d)", instance);
2055 2055
2056 2056 goto fail;
2057 2057 }
2058 2058
2059 2059 mutex_enter(HUBD_MUTEX(hubd));
2060 2060 hubd->h_init_state |= HUBD_MINOR_NODE_CREATED;
2061 2061 mutex_exit(HUBD_MUTEX(hubd));
2062 2062
2063 2063 if (ndi_prop_update_int(DDI_DEV_T_NONE, dip,
2064 2064 "usb-port-count", ports_count) != DDI_PROP_SUCCESS) {
2065 2065 USB_DPRINTF_L2(DPRINT_MASK_ATTA, hubd->h_log_handle,
2066 2066 "usb-port-count update failed");
2067 2067 }
2068 2068
2069 2069 /*
2070 2070 * host controller driver has already reported this dev
2071 2071 * if we are the root hub
2072 2072 */
2073 2073 if (!usba_is_root_hub(dip)) {
2074 2074 ddi_report_dev(dip);
2075 2075 }
2076 2076
2077 2077 /* enable deathrow thread */
2078 2078 hubd->h_cleanup_enabled = B_TRUE;
2079 2079 mutex_enter(HUBD_MUTEX(hubd));
2080 2080 hubd_pm_idle_component(hubd, dip, 0);
2081 2081 mutex_exit(HUBD_MUTEX(hubd));
2082 2082
2083 2083 return (DDI_SUCCESS);
2084 2084
2085 2085 fail:
2086 2086 {
2087 2087 char *pathname = kmem_alloc(MAXPATHLEN, KM_SLEEP);
2088 2088
2089 2089 USB_DPRINTF_L2(DPRINT_MASK_ATTA, hubdi_log_handle,
2090 2090 "cannot attach %s", ddi_pathname(dip, pathname));
2091 2091
2092 2092 kmem_free(pathname, MAXPATHLEN);
2093 2093 }
2094 2094
2095 2095 mutex_enter(HUBD_MUTEX(hubd));
2096 2096 hubd_pm_idle_component(hubd, dip, 0);
2097 2097 mutex_exit(HUBD_MUTEX(hubd));
2098 2098
2099 2099 if (hubd) {
2100 2100 rval = hubd_cleanup(dip, hubd);
2101 2101 if (rval != USB_SUCCESS) {
2102 2102 USB_DPRINTF_L2(DPRINT_MASK_ATTA, hubdi_log_handle,
2103 2103 "failure to complete cleanup after attach failure");
2104 2104 }
2105 2105 }
2106 2106
2107 2107 return (DDI_FAILURE);
2108 2108 }
2109 2109
2110 2110
2111 2111 int
2112 2112 usba_hubdi_detach(dev_info_t *dip, ddi_detach_cmd_t cmd)
2113 2113 {
2114 2114 hubd_t *hubd = hubd_get_soft_state(dip);
2115 2115 int rval;
2116 2116
2117 2117 USB_DPRINTF_L4(DPRINT_MASK_ATTA, hubd->h_log_handle,
2118 2118 "hubd_detach: cmd=0x%x", cmd);
2119 2119
2120 2120 switch (cmd) {
2121 2121 case DDI_DETACH:
2122 2122 rval = hubd_cleanup(dip, hubd);
2123 2123
2124 2124 return ((rval == USB_SUCCESS) ? DDI_SUCCESS : DDI_FAILURE);
2125 2125 case DDI_SUSPEND:
2126 2126 rval = hubd_cpr_suspend(hubd);
2127 2127
2128 2128 return ((rval == USB_SUCCESS) ? DDI_SUCCESS : DDI_FAILURE);
2129 2129 default:
2130 2130 return (DDI_FAILURE);
2131 2131 }
2132 2132 }
2133 2133
2134 2134
2135 2135 /*
2136 2136 * hubd_setdevaddr
2137 2137 * set the device addrs on this port
2138 2138 */
2139 2139 static int
2140 2140 hubd_setdevaddr(hubd_t *hubd, usb_port_t port)
2141 2141 {
2142 2142 int rval;
2143 2143 usb_cr_t completion_reason;
2144 2144 usb_cb_flags_t cb_flags;
2145 2145 usb_pipe_handle_t ph;
2146 2146 dev_info_t *child_dip = NULL;
2147 2147 uchar_t address = 0;
2148 2148 usba_device_t *usba_device;
2149 2149 int retry = 0;
2150 2150 long time_delay;
2151 2151
2152 2152 USB_DPRINTF_L4(DPRINT_MASK_ATTA, hubd->h_log_handle,
2153 2153 "hubd_setdevaddr: port=%d", port);
2154 2154
2155 2155 ASSERT(mutex_owned(HUBD_MUTEX(hubd)));
2156 2156
2157 2157 child_dip = hubd->h_children_dips[port];
2158 2158 address = hubd->h_usba_devices[port]->usb_addr;
2159 2159 usba_device = hubd->h_usba_devices[port];
2160 2160
2161 2161 /* close the default pipe with addr x */
2162 2162 mutex_exit(HUBD_MUTEX(hubd));
2163 2163 ph = usba_get_dflt_pipe_handle(child_dip);
2164 2164 usb_pipe_close(child_dip, ph,
2165 2165 USB_FLAGS_SLEEP | USBA_FLAGS_PRIVILEGED, NULL, NULL);
2166 2166 mutex_enter(HUBD_MUTEX(hubd));
2167 2167
2168 2168 /*
2169 2169 * As this device has been reset, temporarily
2170 2170 * assign the default address
2171 2171 */
2172 2172 mutex_enter(&usba_device->usb_mutex);
2173 2173 address = usba_device->usb_addr;
2174 2174 usba_device->usb_addr = USBA_DEFAULT_ADDR;
2175 2175 mutex_exit(&usba_device->usb_mutex);
2176 2176
2177 2177 mutex_exit(HUBD_MUTEX(hubd));
2178 2178
2179 2179 time_delay = drv_usectohz(hubd_device_delay / 20);
2180 2180 for (retry = 0; retry < hubd_retry_enumerate; retry++) {
2181 2181
2182 2182 /* open child's default pipe with USBA_DEFAULT_ADDR */
2183 2183 if (usb_pipe_open(child_dip, NULL, NULL,
2184 2184 USB_FLAGS_SLEEP | USBA_FLAGS_PRIVILEGED, &ph) !=
2185 2185 USB_SUCCESS) {
2186 2186 USB_DPRINTF_L2(DPRINT_MASK_ATTA, hubd->h_log_handle,
2187 2187 "hubd_setdevaddr: Unable to open default pipe");
2188 2188
2189 2189 break;
2190 2190 }
2191 2191
2192 2192 /* Set the address of the device */
2193 2193 if ((rval = usb_pipe_sync_ctrl_xfer(child_dip, ph,
2194 2194 USB_DEV_REQ_HOST_TO_DEV,
2195 2195 USB_REQ_SET_ADDRESS, /* bRequest */
2196 2196 address, /* wValue */
2197 2197 0, /* wIndex */
2198 2198 0, /* wLength */
2199 2199 NULL, 0,
2200 2200 &completion_reason, &cb_flags, 0)) != USB_SUCCESS) {
2201 2201 USB_DPRINTF_L2(DPRINT_MASK_ATTA, hubd->h_log_handle,
2202 2202 "hubd_setdevaddr(%d): rval=%d cr=%d cb_fl=0x%x",
2203 2203 retry, rval, completion_reason, cb_flags);
2204 2204 }
2205 2205
2206 2206 usb_pipe_close(child_dip, ph,
2207 2207 USB_FLAGS_SLEEP | USBA_FLAGS_PRIVILEGED, NULL, NULL);
2208 2208
2209 2209 if (rval == USB_SUCCESS) {
2210 2210
2211 2211 break;
2212 2212 }
2213 2213
2214 2214 delay(time_delay);
2215 2215 }
2216 2216
2217 2217 /* Reset to the old address */
2218 2218 mutex_enter(&usba_device->usb_mutex);
2219 2219 usba_device->usb_addr = address;
2220 2220 mutex_exit(&usba_device->usb_mutex);
2221 2221 mutex_enter(HUBD_MUTEX(hubd));
2222 2222
2223 2223 usba_clear_data_toggle(usba_device);
2224 2224
2225 2225 return (rval);
2226 2226 }
2227 2227
2228 2228
2229 2229 /*
2230 2230 * hubd_setdevconfig
2231 2231 * set the device addrs on this port
2232 2232 */
2233 2233 static void
2234 2234 hubd_setdevconfig(hubd_t *hubd, usb_port_t port)
2235 2235 {
2236 2236 int rval;
2237 2237 usb_cr_t completion_reason;
2238 2238 usb_cb_flags_t cb_flags;
2239 2239 usb_pipe_handle_t ph;
2240 2240 dev_info_t *child_dip = NULL;
2241 2241 usba_device_t *usba_device = NULL;
2242 2242 uint16_t config_value;
2243 2243
2244 2244 USB_DPRINTF_L4(DPRINT_MASK_ATTA, hubd->h_log_handle,
2245 2245 "hubd_setdevconfig: port=%d", port);
2246 2246
2247 2247 ASSERT(mutex_owned(HUBD_MUTEX(hubd)));
2248 2248
2249 2249 child_dip = hubd->h_children_dips[port];
2250 2250 usba_device = hubd->h_usba_devices[port];
2251 2251 config_value = hubd->h_usba_devices[port]->usb_cfg_value;
2252 2252 mutex_exit(HUBD_MUTEX(hubd));
2253 2253
2254 2254 /* open the default control pipe */
2255 2255 if ((rval = usb_pipe_open(child_dip, NULL, NULL,
2256 2256 USB_FLAGS_SLEEP | USBA_FLAGS_PRIVILEGED, &ph)) ==
2257 2257 USB_SUCCESS) {
2258 2258
2259 2259 /* Set the default configuration of the device */
2260 2260 if ((rval = usb_pipe_sync_ctrl_xfer(child_dip, ph,
2261 2261 USB_DEV_REQ_HOST_TO_DEV,
2262 2262 USB_REQ_SET_CFG, /* bRequest */
2263 2263 config_value, /* wValue */
2264 2264 0, /* wIndex */
2265 2265 0, /* wLength */
2266 2266 NULL, 0,
2267 2267 &completion_reason, &cb_flags, 0)) != USB_SUCCESS) {
2268 2268 USB_DPRINTF_L2(DPRINT_MASK_ATTA, hubd->h_log_handle,
2269 2269 "hubd_setdevconfig: set device config failed: "
2270 2270 "cr=%d cb_fl=0x%x rval=%d",
2271 2271 completion_reason, cb_flags, rval);
2272 2272 }
2273 2273 /*
2274 2274 * After setting the configuration, we make this default
2275 2275 * control pipe persistent, so that it gets re-opened
2276 2276 * on posting a connect event
2277 2277 */
2278 2278 usba_persistent_pipe_close(usba_device);
2279 2279 } else {
2280 2280 USB_DPRINTF_L2(DPRINT_MASK_ATTA, hubd->h_log_handle,
2281 2281 "pipe open fails: rval=%d", rval);
2282 2282 }
2283 2283 mutex_enter(HUBD_MUTEX(hubd));
2284 2284 }
2285 2285
2286 2286
2287 2287 /*ARGSUSED*/
2288 2288 static int
2289 2289 hubd_check_disconnected_ports(dev_info_t *dip, void *arg)
2290 2290 {
2291 2291 int circ;
2292 2292 usb_port_t port;
2293 2293 hubd_t *hubd;
2294 2294 major_t hub_major = ddi_name_to_major("hubd");
2295 2295 major_t hwahc_major = ddi_name_to_major("hwahc");
2296 2296 major_t usbmid_major = ddi_name_to_major("usb_mid");
2297 2297
2298 2298 /*
2299 2299 * make sure dip is a usb hub, major of root hub is HCD
2300 2300 * major
2301 2301 */
2302 2302 if (!usba_is_root_hub(dip)) {
2303 2303 if (ddi_driver_major(dip) == usbmid_major) {
2304 2304 /*
2305 2305 * need to walk the children since it might be a
2306 2306 * HWA device
2307 2307 */
2308 2308
2309 2309 return (DDI_WALK_CONTINUE);
2310 2310 }
2311 2311
2312 2312 /* TODO: DWA device may also need special handling */
2313 2313
2314 2314 if (((ddi_driver_major(dip) != hub_major) &&
2315 2315 (ddi_driver_major(dip) != hwahc_major)) ||
2316 2316 !i_ddi_devi_attached(dip)) {
2317 2317
2318 2318 return (DDI_WALK_PRUNECHILD);
2319 2319 }
2320 2320 }
2321 2321
2322 2322 hubd = hubd_get_soft_state(dip);
2323 2323 if (hubd == NULL) {
2324 2324
2325 2325 return (DDI_WALK_PRUNECHILD);
2326 2326 }
2327 2327
2328 2328 /* walk child list and remove nodes with flag DEVI_DEVICE_REMOVED */
2329 2329 ndi_devi_enter(dip, &circ);
2330 2330
2331 2331 if (ddi_driver_major(dip) != hwahc_major) {
2332 2332 /* for normal usb hub or root hub */
2333 2333 mutex_enter(HUBD_MUTEX(hubd));
2334 2334 for (port = 1; port <= hubd->h_hub_descr.bNbrPorts; port++) {
2335 2335 dev_info_t *cdip = hubd->h_children_dips[port];
2336 2336
2337 2337 if (cdip == NULL || DEVI_IS_DEVICE_REMOVED(cdip) == 0) {
2338 2338
2339 2339 continue;
2340 2340 }
2341 2341
2342 2342 (void) hubd_delete_child(hubd, port, NDI_DEVI_REMOVE,
2343 2343 B_TRUE);
2344 2344 }
2345 2345 mutex_exit(HUBD_MUTEX(hubd));
2346 2346 } else {
2347 2347 /* for HWA */
2348 2348 if (hubd->h_cleanup_child != NULL) {
2349 2349 if (hubd->h_cleanup_child(dip) != USB_SUCCESS) {
2350 2350 ndi_devi_exit(dip, circ);
2351 2351
2352 2352 return (DDI_WALK_PRUNECHILD);
2353 2353 }
2354 2354 } else {
2355 2355 ndi_devi_exit(dip, circ);
2356 2356
2357 2357 return (DDI_WALK_PRUNECHILD);
2358 2358 }
2359 2359 }
2360 2360
2361 2361 ndi_devi_exit(dip, circ);
2362 2362
2363 2363 /* skip siblings of root hub */
2364 2364 if (usba_is_root_hub(dip)) {
2365 2365
2366 2366 return (DDI_WALK_PRUNESIB);
2367 2367 }
2368 2368
2369 2369 return (DDI_WALK_CONTINUE);
2370 2370 }
2371 2371
2372 2372
2373 2373 /*
2374 2374 * this thread will walk all children under the root hub for this
2375 2375 * USB bus instance and attempt to remove them
2376 2376 */
2377 2377 static void
2378 2378 hubd_root_hub_cleanup_thread(void *arg)
2379 2379 {
2380 2380 int circ;
2381 2381 hubd_t *root_hubd = (hubd_t *)arg;
2382 2382 dev_info_t *rh_dip = root_hubd->h_dip;
2383 2383 #ifndef __lock_lint
2384 2384 callb_cpr_t cprinfo;
2385 2385
2386 2386 CALLB_CPR_INIT(&cprinfo, HUBD_MUTEX(root_hubd), callb_generic_cpr,
2387 2387 "USB root hub");
2388 2388 #endif
2389 2389
2390 2390 for (;;) {
2391 2391 /* don't race with detach */
2392 2392 ndi_hold_devi(rh_dip);
2393 2393
2394 2394 mutex_enter(HUBD_MUTEX(root_hubd));
2395 2395 root_hubd->h_cleanup_needed = 0;
2396 2396 mutex_exit(HUBD_MUTEX(root_hubd));
2397 2397
2398 2398 (void) devfs_clean(rh_dip, NULL, 0);
2399 2399
2400 2400 ndi_devi_enter(ddi_get_parent(rh_dip), &circ);
2401 2401 ddi_walk_devs(rh_dip, hubd_check_disconnected_ports,
2402 2402 NULL);
2403 2403 #ifdef __lock_lint
2404 2404 (void) hubd_check_disconnected_ports(rh_dip, NULL);
2405 2405 #endif
2406 2406 ndi_devi_exit(ddi_get_parent(rh_dip), circ);
2407 2407
2408 2408 /* quit if we are not enabled anymore */
2409 2409 mutex_enter(HUBD_MUTEX(root_hubd));
2410 2410 if ((root_hubd->h_cleanup_enabled == B_FALSE) ||
2411 2411 (root_hubd->h_cleanup_needed == B_FALSE)) {
2412 2412 root_hubd->h_cleanup_active = B_FALSE;
2413 2413 mutex_exit(HUBD_MUTEX(root_hubd));
2414 2414 ndi_rele_devi(rh_dip);
2415 2415
2416 2416 break;
2417 2417 }
2418 2418 mutex_exit(HUBD_MUTEX(root_hubd));
2419 2419 ndi_rele_devi(rh_dip);
2420 2420
2421 2421 #ifndef __lock_lint
2422 2422 mutex_enter(HUBD_MUTEX(root_hubd));
2423 2423 CALLB_CPR_SAFE_BEGIN(&cprinfo);
2424 2424 mutex_exit(HUBD_MUTEX(root_hubd));
2425 2425
2426 2426 delay(drv_usectohz(hubd_dip_cleanup_delay));
2427 2427
2428 2428 mutex_enter(HUBD_MUTEX(root_hubd));
2429 2429 CALLB_CPR_SAFE_END(&cprinfo, HUBD_MUTEX(root_hubd));
2430 2430 mutex_exit(HUBD_MUTEX(root_hubd));
2431 2431 #endif
2432 2432 }
2433 2433
2434 2434 #ifndef __lock_lint
2435 2435 mutex_enter(HUBD_MUTEX(root_hubd));
2436 2436 CALLB_CPR_EXIT(&cprinfo);
2437 2437 #endif
2438 2438 }
2439 2439
2440 2440
2441 2441 void
2442 2442 hubd_schedule_cleanup(dev_info_t *rh_dip)
2443 2443 {
2444 2444 hubd_t *root_hubd;
2445 2445
2446 2446 /*
2447 2447 * The usb_root_hub_dip pointer for the child hub of the WUSB
2448 2448 * wire adapter class device points to the wire adapter, not
2449 2449 * the root hub. Need to find the real root hub dip so that
2450 2450 * the cleanup thread only starts from the root hub.
2451 2451 */
2452 2452 while (!usba_is_root_hub(rh_dip)) {
2453 2453 root_hubd = hubd_get_soft_state(rh_dip);
2454 2454 if (root_hubd != NULL) {
2455 2455 rh_dip = root_hubd->h_usba_device->usb_root_hub_dip;
2456 2456 if (rh_dip == NULL) {
2457 2457 USB_DPRINTF_L2(DPRINT_MASK_ATTA,
2458 2458 root_hubd->h_log_handle,
2459 2459 "hubd_schedule_cleanup: null rh dip");
2460 2460
2461 2461 return;
2462 2462 }
2463 2463 } else {
2464 2464 USB_DPRINTF_L2(DPRINT_MASK_ATTA,
2465 2465 root_hubd->h_log_handle,
2466 2466 "hubd_schedule_cleanup: cannot find root hub");
2467 2467
2468 2468 return;
2469 2469 }
2470 2470 }
2471 2471 root_hubd = hubd_get_soft_state(rh_dip);
2472 2472
2473 2473 mutex_enter(HUBD_MUTEX(root_hubd));
2474 2474 root_hubd->h_cleanup_needed = B_TRUE;
2475 2475 if (root_hubd->h_cleanup_enabled && !(root_hubd->h_cleanup_active)) {
2476 2476 root_hubd->h_cleanup_active = B_TRUE;
2477 2477 mutex_exit(HUBD_MUTEX(root_hubd));
2478 2478 (void) thread_create(NULL, 0,
2479 2479 hubd_root_hub_cleanup_thread,
2480 2480 (void *)root_hubd, 0, &p0, TS_RUN,
2481 2481 minclsyspri);
2482 2482 } else {
2483 2483 mutex_exit(HUBD_MUTEX(root_hubd));
2484 2484 }
2485 2485 }
2486 2486
2487 2487
2488 2488 /*
2489 2489 * hubd_restore_device_state:
2490 2490 * - set config for the hub
2491 2491 * - power cycle all the ports
2492 2492 * - for each port that was connected
2493 2493 * - reset port
2494 2494 * - assign addrs to the device on this port
2495 2495 * - restart polling
2496 2496 * - reset suspend flag
2497 2497 */
2498 2498 static void
2499 2499 hubd_restore_device_state(dev_info_t *dip, hubd_t *hubd)
2500 2500 {
2501 2501 int rval;
2502 2502 int retry;
2503 2503 uint_t hub_prev_state;
2504 2504 usb_port_t port;
2505 2505 uint16_t status;
2506 2506 uint16_t change;
2507 2507 dev_info_t *ch_dip;
2508 2508 boolean_t ehci_root_hub;
2509 2509
2510 2510 USB_DPRINTF_L4(DPRINT_MASK_ATTA, hubd->h_log_handle,
2511 2511 "hubd_restore_device_state:");
2512 2512
2513 2513 mutex_enter(HUBD_MUTEX(hubd));
2514 2514 hub_prev_state = hubd->h_dev_state;
2515 2515 ASSERT(hub_prev_state != USB_DEV_PWRED_DOWN);
2516 2516
2517 2517 /* First bring the device to full power */
2518 2518 (void) hubd_pm_busy_component(hubd, dip, 0);
2519 2519 mutex_exit(HUBD_MUTEX(hubd));
2520 2520
2521 2521 (void) pm_raise_power(dip, 0, USB_DEV_OS_FULL_PWR);
2522 2522
2523 2523 if (!usba_is_root_hub(dip) &&
2524 2524 (usb_check_same_device(dip, hubd->h_log_handle, USB_LOG_L0,
2525 2525 DPRINT_MASK_HOTPLUG,
2526 2526 USB_CHK_BASIC|USB_CHK_CFG, NULL) != USB_SUCCESS)) {
2527 2527
2528 2528 /* change the device state to disconnected */
2529 2529 mutex_enter(HUBD_MUTEX(hubd));
2530 2530 hubd->h_dev_state = USB_DEV_DISCONNECTED;
2531 2531 (void) hubd_pm_idle_component(hubd, dip, 0);
2532 2532 mutex_exit(HUBD_MUTEX(hubd));
2533 2533
2534 2534 return;
2535 2535 }
2536 2536
2537 2537 ehci_root_hub = (strcmp(ddi_driver_name(dip), "ehci") == 0);
2538 2538
2539 2539 mutex_enter(HUBD_MUTEX(hubd));
2540 2540 /* First turn off all port power */
2541 2541 rval = hubd_disable_all_port_power(hubd);
2542 2542 if (rval != USB_SUCCESS) {
2543 2543 USB_DPRINTF_L3(DPRINT_MASK_ATTA, hubd->h_log_handle,
2544 2544 "hubd_restore_device_state:"
2545 2545 "turning off port power failed");
2546 2546 }
2547 2547
2548 2548 /* Settling time before turning on again */
2549 2549 mutex_exit(HUBD_MUTEX(hubd));
2550 2550 delay(drv_usectohz(hubd_device_delay / 100));
2551 2551 mutex_enter(HUBD_MUTEX(hubd));
2552 2552
2553 2553 /* enable power on all ports so we can see connects */
2554 2554 if (hubd_enable_all_port_power(hubd) != USB_SUCCESS) {
2555 2555 USB_DPRINTF_L2(DPRINT_MASK_ATTA, hubd->h_log_handle,
2556 2556 "hubd_restore_device_state: turn on port power failed");
2557 2557
2558 2558 /* disable whatever was enabled */
2559 2559 (void) hubd_disable_all_port_power(hubd);
2560 2560
2561 2561 (void) hubd_pm_idle_component(hubd, dip, 0);
2562 2562 mutex_exit(HUBD_MUTEX(hubd));
2563 2563
2564 2564 return;
2565 2565 }
2566 2566
2567 2567 /*
2568 2568 * wait at least 3 frames before accessing devices
2569 2569 * (note that delay's minimal time is one clock tick which
2570 2570 * is 10ms unless hires_tick has been changed)
2571 2571 */
2572 2572 mutex_exit(HUBD_MUTEX(hubd));
2573 2573 delay(drv_usectohz(10000));
2574 2574 mutex_enter(HUBD_MUTEX(hubd));
2575 2575
2576 2576 hubd->h_dev_state = USB_DEV_HUB_STATE_RECOVER;
2577 2577
2578 2578 for (port = 1; port <= hubd->h_hub_descr.bNbrPorts; port++) {
2579 2579 USB_DPRINTF_L3(DPRINT_MASK_ATTA, hubd->h_log_handle,
2580 2580 "hubd_restore_device_state: port=%d", port);
2581 2581
2582 2582 /*
2583 2583 * the childen_dips list may have dips that have been
2584 2584 * already deallocated. we only get a post_detach notification
2585 2585 * but not a destroy notification
2586 2586 */
2587 2587 ch_dip = hubd->h_children_dips[port];
2588 2588 if (ch_dip) {
2589 2589 /* get port status */
2590 2590 (void) hubd_determine_port_status(hubd, port,
2591 2591 &status, &change, PORT_CHANGE_CSC);
2592 2592
2593 2593 /* check if it is truly connected */
2594 2594 if (status & PORT_STATUS_CCS) {
2595 2595 /*
2596 2596 * Now reset port and assign the device
2597 2597 * its original address
2598 2598 */
2599 2599 retry = 0;
2600 2600 do {
2601 2601 (void) hubd_reset_port(hubd, port);
2602 2602
2603 2603 /* required for ppx */
2604 2604 (void) hubd_enable_port(hubd, port);
2605 2605
2606 2606 if (retry) {
2607 2607 mutex_exit(HUBD_MUTEX(hubd));
2608 2608 delay(drv_usectohz(
2609 2609 hubd_device_delay/2));
2610 2610 mutex_enter(HUBD_MUTEX(hubd));
2611 2611 }
2612 2612
2613 2613 rval = hubd_setdevaddr(hubd, port);
2614 2614 retry++;
2615 2615 } while ((rval != USB_SUCCESS) &&
2616 2616 (retry < hubd_retry_enumerate));
2617 2617
2618 2618 hubd_setdevconfig(hubd, port);
2619 2619
2620 2620 if (hub_prev_state == USB_DEV_DISCONNECTED) {
2621 2621 /* post a connect event */
2622 2622 mutex_exit(HUBD_MUTEX(hubd));
2623 2623 hubd_post_event(hubd, port,
2624 2624 USBA_EVENT_TAG_HOT_INSERTION);
2625 2625 mutex_enter(HUBD_MUTEX(hubd));
2626 2626 } else {
2627 2627 /*
2628 2628 * Since we have this device connected
2629 2629 * mark it reinserted to prevent
2630 2630 * cleanup thread from stepping in.
2631 2631 */
2632 2632 mutex_exit(HUBD_MUTEX(hubd));
2633 2633 mutex_enter(&(DEVI(ch_dip)->devi_lock));
2634 2634 DEVI_SET_DEVICE_REINSERTED(ch_dip);
2635 2635 mutex_exit(&(DEVI(ch_dip)->devi_lock));
2636 2636
2637 2637 /*
2638 2638 * reopen pipes for children for
2639 2639 * their DDI_RESUME
2640 2640 */
2641 2641 rval = usba_persistent_pipe_open(
2642 2642 usba_get_usba_device(ch_dip));
2643 2643 mutex_enter(HUBD_MUTEX(hubd));
2644 2644 ASSERT(rval == USB_SUCCESS);
2645 2645 }
2646 2646 } else {
2647 2647 /*
2648 2648 * Mark this dip for deletion as the device
2649 2649 * is not physically present, and schedule
2650 2650 * cleanup thread upon post resume
2651 2651 */
2652 2652 mutex_exit(HUBD_MUTEX(hubd));
2653 2653
2654 2654 USB_DPRINTF_L2(DPRINT_MASK_ATTA,
2655 2655 hubd->h_log_handle,
2656 2656 "hubd_restore_device_state: "
2657 2657 "dip=%p on port=%d marked for cleanup",
2658 2658 (void *)ch_dip, port);
2659 2659 mutex_enter(&(DEVI(ch_dip)->devi_lock));
2660 2660 DEVI_SET_DEVICE_REMOVED(ch_dip);
2661 2661 mutex_exit(&(DEVI(ch_dip)->devi_lock));
2662 2662
2663 2663 mutex_enter(HUBD_MUTEX(hubd));
2664 2664 }
2665 2665 } else if (ehci_root_hub) {
2666 2666 /* get port status */
2667 2667 (void) hubd_determine_port_status(hubd, port,
2668 2668 &status, &change, PORT_CHANGE_CSC);
2669 2669
2670 2670 /* check if it is truly connected */
2671 2671 if (status & PORT_STATUS_CCS) {
2672 2672 /*
2673 2673 * reset the port to find out if we have
2674 2674 * 2.0 device connected or 1.X. A 2.0
2675 2675 * device will still be seen as connected,
2676 2676 * while a 1.X device will switch over to
2677 2677 * the companion controller.
2678 2678 */
2679 2679 (void) hubd_reset_port(hubd, port);
2680 2680
2681 2681 (void) hubd_determine_port_status(hubd, port,
2682 2682 &status, &change, PORT_CHANGE_CSC);
2683 2683
2684 2684 if (status &
2685 2685 (PORT_STATUS_CCS | PORT_STATUS_HSDA)) {
2686 2686 /*
2687 2687 * We have a USB 2.0 device
2688 2688 * connected. Power cycle this port
2689 2689 * so that hotplug thread can
2690 2690 * enumerate this device.
2691 2691 */
2692 2692 (void) hubd_toggle_port(hubd, port);
2693 2693 } else {
2694 2694 USB_DPRINTF_L2(DPRINT_MASK_ATTA,
2695 2695 hubd->h_log_handle,
2696 2696 "hubd_restore_device_state: "
2697 2697 "device on port %d switched over",
2698 2698 port);
2699 2699 }
2700 2700 }
2701 2701
2702 2702 }
2703 2703 }
2704 2704
2705 2705
2706 2706 /* if the device had remote wakeup earlier, enable it again */
2707 2707 if (hubd->h_hubpm->hubp_wakeup_enabled) {
2708 2708 mutex_exit(HUBD_MUTEX(hubd));
2709 2709 (void) usb_handle_remote_wakeup(hubd->h_dip,
2710 2710 USB_REMOTE_WAKEUP_ENABLE);
2711 2711 mutex_enter(HUBD_MUTEX(hubd));
2712 2712 }
2713 2713
2714 2714 hubd->h_dev_state = USB_DEV_ONLINE;
2715 2715 hubd_start_polling(hubd, 0);
2716 2716 (void) hubd_pm_idle_component(hubd, dip, 0);
2717 2717 mutex_exit(HUBD_MUTEX(hubd));
2718 2718 }
2719 2719
2720 2720
2721 2721 /*
2722 2722 * hubd_cleanup:
2723 2723 * cleanup hubd and deallocate. this function is called for
2724 2724 * handling attach failures and detaching including dynamic
2725 2725 * reconfiguration. If called from attaching, it must clean
2726 2726 * up the whole thing and return success.
2727 2727 */
2728 2728 /*ARGSUSED*/
2729 2729 static int
2730 2730 hubd_cleanup(dev_info_t *dip, hubd_t *hubd)
2731 2731 {
2732 2732 int circ, rval, old_dev_state;
2733 2733 hub_power_t *hubpm;
2734 2734 #ifdef DEBUG
2735 2735 usb_port_t port;
2736 2736 #endif
2737 2737
2738 2738 USB_DPRINTF_L4(DPRINT_MASK_ATTA, hubd->h_log_handle,
2739 2739 "hubd_cleanup:");
2740 2740
2741 2741 if ((hubd->h_init_state & HUBD_LOCKS_DONE) == 0) {
2742 2742 goto done;
2743 2743 }
2744 2744
2745 2745 /* ensure we are the only one active */
2746 2746 ndi_devi_enter(dip, &circ);
2747 2747
2748 2748 mutex_enter(HUBD_MUTEX(hubd));
2749 2749
2750 2750 /* Cleanup failure is only allowed if called from detach */
2751 2751 if (DEVI_IS_DETACHING(dip)) {
2752 2752 dev_info_t *rh_dip = hubd->h_usba_device->usb_root_hub_dip;
2753 2753
2754 2754 /*
2755 2755 * We are being called from detach.
2756 2756 * Fail immediately if the hotplug thread is running
2757 2757 * else set the dev_state to disconnected so that
2758 2758 * hotplug thread just exits without doing anything.
2759 2759 */
2760 2760 if (hubd->h_bus_ctls || hubd->h_bus_pwr ||
2761 2761 hubd->h_hotplug_thread) {
2762 2762 mutex_exit(HUBD_MUTEX(hubd));
2763 2763 ndi_devi_exit(dip, circ);
2764 2764
2765 2765 USB_DPRINTF_L2(DPRINT_MASK_ATTA, hubd->h_log_handle,
2766 2766 "hubd_cleanup: hotplug thread/bus ctl active "
2767 2767 "- failing detach");
2768 2768
2769 2769 return (USB_FAILURE);
2770 2770 }
2771 2771
2772 2772 /*
2773 2773 * if the deathrow thread is still active or about
2774 2774 * to become active, fail detach
2775 2775 * the roothup can only be detached if nexus drivers
2776 2776 * are unloaded or explicitly offlined
2777 2777 */
2778 2778 if (rh_dip == dip) {
2779 2779 if (hubd->h_cleanup_needed ||
2780 2780 hubd->h_cleanup_active) {
2781 2781 mutex_exit(HUBD_MUTEX(hubd));
2782 2782 ndi_devi_exit(dip, circ);
2783 2783
2784 2784 USB_DPRINTF_L2(DPRINT_MASK_ATTA,
2785 2785 hubd->h_log_handle,
2786 2786 "hubd_cleanup: deathrow still active?"
2787 2787 "- failing detach");
2788 2788
2789 2789 return (USB_FAILURE);
2790 2790 }
2791 2791 }
2792 2792 }
2793 2793
2794 2794 old_dev_state = hubd->h_dev_state;
2795 2795 hubd->h_dev_state = USB_DEV_DISCONNECTED;
2796 2796
2797 2797 USB_DPRINTF_L4(DPRINT_MASK_ATTA, hubd->h_log_handle,
2798 2798 "hubd_cleanup: stop polling");
2799 2799 hubd_close_intr_pipe(hubd);
2800 2800
2801 2801 ASSERT((hubd->h_bus_ctls || hubd->h_bus_pwr ||
2802 2802 hubd->h_hotplug_thread) == 0);
2803 2803 mutex_exit(HUBD_MUTEX(hubd));
2804 2804
2805 2805 /*
2806 2806 * deallocate events, if events are still registered
2807 2807 * (ie. children still attached) then we have to fail the detach
2808 2808 */
2809 2809 if (hubd->h_ndi_event_hdl) {
2810 2810
2811 2811 rval = ndi_event_free_hdl(hubd->h_ndi_event_hdl);
2812 2812 if (DEVI_IS_ATTACHING(dip)) {
2813 2813
2814 2814 /* It must return success if attaching. */
2815 2815 ASSERT(rval == NDI_SUCCESS);
2816 2816
2817 2817 } else if (rval != NDI_SUCCESS) {
2818 2818
2819 2819 USB_DPRINTF_L2(DPRINT_MASK_ALL, hubd->h_log_handle,
2820 2820 "hubd_cleanup: ndi_event_free_hdl failed");
2821 2821 ndi_devi_exit(dip, circ);
2822 2822
2823 2823 return (USB_FAILURE);
2824 2824
2825 2825 }
2826 2826 }
2827 2827
2828 2828 mutex_enter(HUBD_MUTEX(hubd));
2829 2829
2830 2830 if (hubd->h_init_state & HUBD_CHILDREN_CREATED) {
2831 2831 #ifdef DEBUG
2832 2832 for (port = 1; port <= hubd->h_hub_descr.bNbrPorts; port++) {
2833 2833 ASSERT(hubd->h_usba_devices[port] == NULL);
2834 2834 ASSERT(hubd->h_children_dips[port] == NULL);
2835 2835 }
2836 2836 #endif
2837 2837 kmem_free(hubd->h_children_dips, hubd->h_cd_list_length);
2838 2838 kmem_free(hubd->h_usba_devices, hubd->h_cd_list_length);
2839 2839 }
2840 2840
2841 2841 /*
2842 2842 * Disable the event callbacks first, after this point, event
2843 2843 * callbacks will never get called. Note we shouldn't hold
2844 2844 * mutex while unregistering events because there may be a
2845 2845 * competing event callback thread. Event callbacks are done
2846 2846 * with ndi mutex held and this can cause a potential deadlock.
2847 2847 * Note that cleanup can't fail after deregistration of events.
2848 2848 */
2849 2849 if (hubd->h_init_state & HUBD_EVENTS_REGISTERED) {
2850 2850 mutex_exit(HUBD_MUTEX(hubd));
2851 2851 usb_unregister_event_cbs(dip, &hubd_events);
2852 2852 hubd_unregister_cpr_callback(hubd);
2853 2853 mutex_enter(HUBD_MUTEX(hubd));
2854 2854 }
2855 2855
2856 2856 /* restore the old dev state so that device can be put into low power */
2857 2857 hubd->h_dev_state = old_dev_state;
2858 2858 hubpm = hubd->h_hubpm;
2859 2859
2860 2860 if ((hubpm) && (hubd->h_dev_state != USB_DEV_DISCONNECTED)) {
2861 2861 (void) hubd_pm_busy_component(hubd, dip, 0);
2862 2862 mutex_exit(HUBD_MUTEX(hubd));
2863 2863 if (hubd->h_hubpm->hubp_wakeup_enabled) {
2864 2864 /*
2865 2865 * Bring the hub to full power before
2866 2866 * issuing the disable remote wakeup command
2867 2867 */
2868 2868 (void) pm_raise_power(dip, 0, USB_DEV_OS_FULL_PWR);
2869 2869
2870 2870 if ((rval = usb_handle_remote_wakeup(hubd->h_dip,
2871 2871 USB_REMOTE_WAKEUP_DISABLE)) != USB_SUCCESS) {
2872 2872 USB_DPRINTF_L2(DPRINT_MASK_PM,
2873 2873 hubd->h_log_handle,
2874 2874 "hubd_cleanup: disable remote wakeup "
2875 2875 "fails=%d", rval);
2876 2876 }
2877 2877 }
2878 2878
2879 2879 (void) pm_lower_power(hubd->h_dip, 0, USB_DEV_OS_PWR_OFF);
2880 2880
2881 2881 mutex_enter(HUBD_MUTEX(hubd));
2882 2882 (void) hubd_pm_idle_component(hubd, dip, 0);
2883 2883 }
2884 2884
2885 2885 if (hubpm) {
2886 2886 if (hubpm->hubp_child_pwrstate) {
2887 2887 kmem_free(hubpm->hubp_child_pwrstate,
2888 2888 MAX_PORTS + 1);
2889 2889 }
2890 2890 kmem_free(hubpm, sizeof (hub_power_t));
2891 2891 }
2892 2892 mutex_exit(HUBD_MUTEX(hubd));
2893 2893
2894 2894 USB_DPRINTF_L4(DPRINT_MASK_ATTA, hubd->h_log_handle,
2895 2895 "hubd_cleanup: freeing space");
2896 2896
2897 2897 if (hubd->h_init_state & HUBD_HUBDI_REGISTERED) {
2898 2898 rval = usba_hubdi_unregister(dip);
2899 2899 ASSERT(rval == USB_SUCCESS);
2900 2900 }
2901 2901
2902 2902 if (hubd->h_init_state & HUBD_LOCKS_DONE) {
2903 2903 mutex_destroy(HUBD_MUTEX(hubd));
2904 2904 cv_destroy(&hubd->h_cv_reset_port);
2905 2905 cv_destroy(&hubd->h_cv_hotplug_dev);
2906 2906 }
2907 2907
2908 2908 ndi_devi_exit(dip, circ);
2909 2909
2910 2910 if (hubd->h_init_state & HUBD_MINOR_NODE_CREATED) {
2911 2911 ddi_remove_minor_node(dip, NULL);
2912 2912 }
2913 2913
2914 2914 if (usba_is_root_hub(dip)) {
2915 2915 usb_pipe_close(dip, hubd->h_default_pipe,
2916 2916 USB_FLAGS_SLEEP | USBA_FLAGS_PRIVILEGED, NULL, NULL);
2917 2917 }
2918 2918
2919 2919 done:
2920 2920 if (hubd->h_ancestry_str) {
2921 2921 kmem_free(hubd->h_ancestry_str, HUBD_APID_NAMELEN);
2922 2922 }
2923 2923
2924 2924 usb_client_detach(dip, hubd->h_dev_data);
2925 2925
2926 2926 usb_free_log_hdl(hubd->h_log_handle);
2927 2927
2928 2928 if (!usba_is_root_hub(dip)) {
2929 2929 ddi_soft_state_free(hubd_statep, ddi_get_instance(dip));
2930 2930 }
2931 2931
2932 2932 ddi_prop_remove_all(dip);
2933 2933
2934 2934 return (USB_SUCCESS);
2935 2935 }
2936 2936
2937 2937
2938 2938 /*
2939 2939 * hubd_determine_port_connection:
2940 2940 * Determine which port is in connect status but does not
2941 2941 * have connect status change bit set, and mark port change
2942 2942 * bit accordingly.
2943 2943 * This function is applied during hub attach time.
2944 2944 */
2945 2945 static usb_port_mask_t
2946 2946 hubd_determine_port_connection(hubd_t *hubd)
2947 2947 {
2948 2948 usb_port_t port;
2949 2949 usb_hub_descr_t *hub_descr;
2950 2950 uint16_t status;
2951 2951 uint16_t change;
2952 2952 usb_port_mask_t port_change = 0;
2953 2953
2954 2954 ASSERT(mutex_owned(HUBD_MUTEX(hubd)));
2955 2955
2956 2956 hub_descr = &hubd->h_hub_descr;
2957 2957
2958 2958 for (port = 1; port <= hub_descr->bNbrPorts; port++) {
2959 2959
2960 2960 (void) hubd_determine_port_status(hubd, port, &status,
2961 2961 &change, 0);
2962 2962
2963 2963 /* Check if port is in connect status */
2964 2964 if (!(status & PORT_STATUS_CCS)) {
2965 2965
2966 2966 continue;
2967 2967 }
2968 2968
2969 2969 /*
2970 2970 * Check if port Connect Status Change bit has been set.
2971 2971 * If already set, the connection will be handled by
2972 2972 * intr polling callback, not during attach.
2973 2973 */
2974 2974 if (change & PORT_CHANGE_CSC) {
2975 2975
2976 2976 continue;
2977 2977 }
2978 2978
2979 2979 port_change |= 1 << port;
2980 2980 }
2981 2981
2982 2982 return (port_change);
2983 2983 }
2984 2984
2985 2985
2986 2986 /*
2987 2987 * hubd_check_ports:
2988 2988 * - get hub descriptor
2989 2989 * - check initial port status
2990 2990 * - enable power on all ports
2991 2991 * - enable polling on ep1
2992 2992 */
2993 2993 static int
2994 2994 hubd_check_ports(hubd_t *hubd)
2995 2995 {
2996 2996 int rval;
2997 2997 usb_port_mask_t port_change = 0;
2998 2998 hubd_hotplug_arg_t *arg;
2999 2999
3000 3000 ASSERT(mutex_owned(HUBD_MUTEX(hubd)));
3001 3001
3002 3002 USB_DPRINTF_L4(DPRINT_MASK_PORT, hubd->h_log_handle,
3003 3003 "hubd_check_ports: addr=0x%x", usb_get_addr(hubd->h_dip));
3004 3004
3005 3005 /*
3006 3006 * First turn off all port power
3007 3007 */
3008 3008 if ((rval = hubd_disable_all_port_power(hubd)) != USB_SUCCESS) {
3009 3009
3010 3010 /* disable whatever was enabled */
3011 3011 (void) hubd_disable_all_port_power(hubd);
3012 3012
3013 3013 return (rval);
3014 3014 }
3015 3015
3016 3016 /*
3017 3017 * do not switch on immediately (instantly on root hub)
3018 3018 * and allow time to settle
3019 3019 */
3020 3020 mutex_exit(HUBD_MUTEX(hubd));
3021 3021 delay(drv_usectohz(10000));
3022 3022 mutex_enter(HUBD_MUTEX(hubd));
3023 3023
3024 3024 /*
3025 3025 * enable power on all ports so we can see connects
3026 3026 */
3027 3027 if ((rval = hubd_enable_all_port_power(hubd)) != USB_SUCCESS) {
3028 3028 /* disable whatever was enabled */
3029 3029 (void) hubd_disable_all_port_power(hubd);
3030 3030
3031 3031 return (rval);
3032 3032 }
3033 3033
3034 3034 /* wait at least 3 frames before accessing devices */
3035 3035 mutex_exit(HUBD_MUTEX(hubd));
3036 3036 delay(drv_usectohz(10000));
3037 3037 mutex_enter(HUBD_MUTEX(hubd));
3038 3038
3039 3039 /*
3040 3040 * allocate arrays for saving the dips of each child per port
3041 3041 *
3042 3042 * ports go from 1 - n, allocate 1 more entry
3043 3043 */
3044 3044 hubd->h_cd_list_length =
3045 3045 (sizeof (dev_info_t **)) * (hubd->h_hub_descr.bNbrPorts + 1);
3046 3046
3047 3047 hubd->h_children_dips = (dev_info_t **)kmem_zalloc(
3048 3048 hubd->h_cd_list_length, KM_SLEEP);
3049 3049 hubd->h_usba_devices = (usba_device_t **)kmem_zalloc(
3050 3050 hubd->h_cd_list_length, KM_SLEEP);
3051 3051
3052 3052 hubd->h_init_state |= HUBD_CHILDREN_CREATED;
3053 3053
3054 3054 mutex_exit(HUBD_MUTEX(hubd));
3055 3055 arg = (hubd_hotplug_arg_t *)kmem_zalloc(
3056 3056 sizeof (hubd_hotplug_arg_t), KM_SLEEP);
3057 3057 mutex_enter(HUBD_MUTEX(hubd));
3058 3058
3059 3059 if ((rval = hubd_open_intr_pipe(hubd)) != USB_SUCCESS) {
3060 3060 kmem_free(arg, sizeof (hubd_hotplug_arg_t));
3061 3061
3062 3062 return (rval);
3063 3063 }
3064 3064
3065 3065 hubd_start_polling(hubd, 0);
3066 3066
3067 3067 /*
3068 3068 * Some hub devices, like the embedded hub in the CKS ErgoMagic
3069 3069 * keyboard, may only have connection status bit set, but not
3070 3070 * have connect status change bit set when a device has been
3071 3071 * connected to its downstream port before the hub is enumerated.
3072 3072 * Then when the hub is in enumeration, the devices connected to
3073 3073 * it cannot be detected by the intr pipe and won't be enumerated.
3074 3074 * We need to check such situation here and enumerate the downstream
3075 3075 * devices for such hubs.
3076 3076 */
3077 3077 port_change = hubd_determine_port_connection(hubd);
3078 3078
3079 3079 if (port_change) {
3080 3080 hubd_pm_busy_component(hubd, hubd->h_dip, 0);
3081 3081
3082 3082 arg->hubd = hubd;
3083 3083 arg->hotplug_during_attach = B_TRUE;
3084 3084 hubd->h_port_change |= port_change;
3085 3085
3086 3086 USB_DPRINTF_L3(DPRINT_MASK_PORT, hubd->h_log_handle,
3087 3087 "hubd_check_ports: port change=0x%x, need to connect",
3088 3088 hubd->h_port_change);
3089 3089
3090 3090 if (usb_async_req(hubd->h_dip, hubd_hotplug_thread,
3091 3091 (void *)arg, 0) == USB_SUCCESS) {
3092 3092 hubd->h_hotplug_thread++;
3093 3093 } else {
3094 3094 /* mark this device as idle */
3095 3095 hubd_pm_idle_component(hubd, hubd->h_dip, 0);
3096 3096 kmem_free(arg, sizeof (hubd_hotplug_arg_t));
3097 3097 }
3098 3098 } else {
3099 3099 kmem_free(arg, sizeof (hubd_hotplug_arg_t));
3100 3100 }
3101 3101
3102 3102 USB_DPRINTF_L4(DPRINT_MASK_ATTA, hubd->h_log_handle,
3103 3103 "hubd_check_ports done");
3104 3104
3105 3105 return (USB_SUCCESS);
3106 3106 }
3107 3107
3108 3108
3109 3109 /*
3110 3110 * hubd_get_hub_descriptor:
3111 3111 */
3112 3112 static int
3113 3113 hubd_get_hub_descriptor(hubd_t *hubd)
3114 3114 {
3115 3115 usb_hub_descr_t *hub_descr = &hubd->h_hub_descr;
3116 3116 mblk_t *data = NULL;
3117 3117 usb_cr_t completion_reason;
3118 3118 usb_cb_flags_t cb_flags;
3119 3119 uint16_t length;
3120 3120 int rval;
3121 3121 usb_req_attrs_t attr = 0;
3122 3122
3123 3123 USB_DPRINTF_L4(DPRINT_MASK_HUB, hubd->h_log_handle,
3124 3124 "hubd_get_hub_descriptor:");
3125 3125
3126 3126 if ((hubd->h_dev_data->dev_descr->idVendor == USB_HUB_INTEL_VID) &&
3127 3127 (hubd->h_dev_data->dev_descr->idProduct == USB_HUB_INTEL_PID)) {
3128 3128 attr = USB_ATTRS_SHORT_XFER_OK;
3129 3129 }
3130 3130
3131 3131 ASSERT(mutex_owned(HUBD_MUTEX(hubd)));
3132 3132 ASSERT(hubd->h_default_pipe != 0);
3133 3133
3134 3134 /* get hub descriptor length first by requesting 8 bytes only */
3135 3135 mutex_exit(HUBD_MUTEX(hubd));
3136 3136
3137 3137 if ((rval = usb_pipe_sync_ctrl_xfer(hubd->h_dip,
3138 3138 hubd->h_default_pipe,
3139 3139 HUB_CLASS_REQ_TYPE,
3140 3140 USB_REQ_GET_DESCR, /* bRequest */
3141 3141 USB_DESCR_TYPE_SETUP_HUB, /* wValue */
3142 3142 0, /* wIndex */
3143 3143 8, /* wLength */
3144 3144 &data, 0,
3145 3145 &completion_reason, &cb_flags, 0)) != USB_SUCCESS) {
3146 3146 USB_DPRINTF_L2(DPRINT_MASK_ATTA, hubd->h_log_handle,
3147 3147 "get hub descriptor failed: cr=%d cb_fl=0x%x rval=%d",
3148 3148 completion_reason, cb_flags, rval);
3149 3149 freemsg(data);
3150 3150 mutex_enter(HUBD_MUTEX(hubd));
3151 3151
3152 3152 return (rval);
3153 3153 }
3154 3154
3155 3155 length = *(data->b_rptr);
3156 3156
3157 3157 if (length > 8) {
3158 3158 freemsg(data);
3159 3159 data = NULL;
3160 3160
3161 3161 /* get complete hub descriptor */
3162 3162 rval = usb_pipe_sync_ctrl_xfer(hubd->h_dip,
3163 3163 hubd->h_default_pipe,
3164 3164 HUB_CLASS_REQ_TYPE,
3165 3165 USB_REQ_GET_DESCR, /* bRequest */
3166 3166 USB_DESCR_TYPE_SETUP_HUB, /* wValue */
3167 3167 0, /* wIndex */
3168 3168 length, /* wLength */
3169 3169 &data, attr,
3170 3170 &completion_reason, &cb_flags, 0);
3171 3171
3172 3172 /*
3173 3173 * Hub descriptor data less than 9 bytes is not valid and
3174 3174 * may cause trouble if we use it. See USB2.0 Tab11-13.
3175 3175 */
3176 3176 if ((rval != USB_SUCCESS) || (MBLKL(data) <= 8)) {
3177 3177 USB_DPRINTF_L2(DPRINT_MASK_ATTA, hubd->h_log_handle,
3178 3178 "get hub descriptor failed: "
3179 3179 "cr=%d cb_fl=0x%x rval=%d, len=%ld",
3180 3180 completion_reason, cb_flags, rval,
3181 3181 (data)?MBLKL(data):0);
3182 3182 freemsg(data);
3183 3183 mutex_enter(HUBD_MUTEX(hubd));
3184 3184
3185 3185 return (rval);
3186 3186 }
3187 3187 }
3188 3188
3189 3189 mutex_enter(HUBD_MUTEX(hubd));
3190 3190
3191 3191 /* parse the hub descriptor */
3192 3192 /* only 32 ports are supported at present */
3193 3193 ASSERT(*(data->b_rptr + 2) <= 32);
3194 3194 if (usb_parse_CV_descr("cccscccccc",
3195 3195 data->b_rptr, MBLKL(data),
3196 3196 (void *)hub_descr, sizeof (usb_hub_descr_t)) == 0) {
3197 3197 USB_DPRINTF_L2(DPRINT_MASK_ATTA, hubd->h_log_handle,
3198 3198 "parsing hub descriptor failed");
3199 3199
3200 3200 freemsg(data);
3201 3201
3202 3202 return (USB_FAILURE);
3203 3203 }
3204 3204
3205 3205 freemsg(data);
3206 3206
3207 3207 USB_DPRINTF_L4(DPRINT_MASK_ATTA, hubd->h_log_handle,
3208 3208 "rval=0x%x bNbrPorts=0x%x wHubChars=0x%x "
3209 3209 "PwrOn2PwrGood=0x%x HubContrCurrent=%dmA", rval,
3210 3210 hub_descr->bNbrPorts, hub_descr->wHubCharacteristics,
3211 3211 hub_descr->bPwrOn2PwrGood, hub_descr->bHubContrCurrent);
3212 3212
3213 3213 if (hub_descr->bNbrPorts > MAX_PORTS) {
3214 3214 USB_DPRINTF_L0(DPRINT_MASK_ATTA, hubd->h_log_handle,
3215 3215 "Hub driver supports max of %d ports on hub. "
3216 3216 "Hence using the first %d port of %d ports available",
3217 3217 MAX_PORTS, MAX_PORTS, hub_descr->bNbrPorts);
3218 3218
3219 3219 hub_descr->bNbrPorts = MAX_PORTS;
3220 3220 }
3221 3221
3222 3222 return (USB_SUCCESS);
3223 3223 }
3224 3224
3225 3225
3226 3226 /*
3227 3227 * hubd_get_hub_status_words:
3228 3228 */
3229 3229 static int
3230 3230 hubd_get_hub_status_words(hubd_t *hubd, uint16_t *status)
3231 3231 {
3232 3232 usb_cr_t completion_reason;
3233 3233 usb_cb_flags_t cb_flags;
3234 3234 mblk_t *data = NULL;
3235 3235
3236 3236 ASSERT(mutex_owned(HUBD_MUTEX(hubd)));
3237 3237
3238 3238 mutex_exit(HUBD_MUTEX(hubd));
3239 3239
3240 3240 if (usb_pipe_sync_ctrl_xfer(hubd->h_dip, hubd->h_default_pipe,
3241 3241 HUB_CLASS_REQ_TYPE,
3242 3242 USB_REQ_GET_STATUS,
3243 3243 0,
3244 3244 0,
3245 3245 GET_STATUS_LENGTH,
3246 3246 &data, 0,
3247 3247 &completion_reason, &cb_flags, 0) != USB_SUCCESS) {
3248 3248 USB_DPRINTF_L2(DPRINT_MASK_HUB, hubd->h_log_handle,
3249 3249 "get hub status failed: cr=%d cb=0x%x",
3250 3250 completion_reason, cb_flags);
3251 3251
3252 3252 if (data) {
3253 3253 freemsg(data);
3254 3254 }
3255 3255
3256 3256 mutex_enter(HUBD_MUTEX(hubd));
3257 3257
3258 3258 return (USB_FAILURE);
3259 3259 }
3260 3260
3261 3261 mutex_enter(HUBD_MUTEX(hubd));
3262 3262
3263 3263 status[0] = (*(data->b_rptr + 1) << 8) | *(data->b_rptr);
3264 3264 status[1] = (*(data->b_rptr + 3) << 8) | *(data->b_rptr + 2);
3265 3265
3266 3266 USB_DPRINTF_L3(DPRINT_MASK_HUB, hubd->h_log_handle,
3267 3267 "hub status=0x%x change=0x%x", status[0], status[1]);
3268 3268
3269 3269 freemsg(data);
3270 3270
3271 3271 return (USB_SUCCESS);
3272 3272 }
3273 3273
3274 3274
3275 3275 /*
3276 3276 * hubd_open_intr_pipe:
3277 3277 * we read all descriptors first for curiosity and then simply
3278 3278 * open the pipe
3279 3279 */
3280 3280 static int
3281 3281 hubd_open_intr_pipe(hubd_t *hubd)
3282 3282 {
3283 3283 int rval;
3284 3284
3285 3285 USB_DPRINTF_L4(DPRINT_MASK_HUB, hubd->h_log_handle,
3286 3286 "hubd_open_intr_pipe:");
3287 3287
3288 3288 ASSERT(hubd->h_intr_pipe_state == HUBD_INTR_PIPE_IDLE);
3289 3289
3290 3290 hubd->h_intr_pipe_state = HUBD_INTR_PIPE_OPENING;
3291 3291 mutex_exit(HUBD_MUTEX(hubd));
3292 3292
3293 3293 if ((rval = usb_pipe_open(hubd->h_dip,
3294 3294 &hubd->h_ep1_descr, &hubd->h_pipe_policy,
3295 3295 0, &hubd->h_ep1_ph)) != USB_SUCCESS) {
3296 3296 USB_DPRINTF_L2(DPRINT_MASK_HUB, hubd->h_log_handle,
3297 3297 "open intr pipe failed (%d)", rval);
3298 3298
3299 3299 mutex_enter(HUBD_MUTEX(hubd));
3300 3300 hubd->h_intr_pipe_state = HUBD_INTR_PIPE_IDLE;
3301 3301
3302 3302 return (rval);
3303 3303 }
3304 3304
3305 3305 mutex_enter(HUBD_MUTEX(hubd));
3306 3306 hubd->h_intr_pipe_state = HUBD_INTR_PIPE_ACTIVE;
3307 3307
3308 3308 USB_DPRINTF_L4(DPRINT_MASK_HUB, hubd->h_log_handle,
3309 3309 "open intr pipe succeeded, ph=0x%p", (void *)hubd->h_ep1_ph);
3310 3310
3311 3311 return (USB_SUCCESS);
3312 3312 }
3313 3313
3314 3314
3315 3315 /*
3316 3316 * hubd_start_polling:
3317 3317 * start or restart the polling
3318 3318 */
3319 3319 static void
3320 3320 hubd_start_polling(hubd_t *hubd, int always)
3321 3321 {
3322 3322 usb_intr_req_t *reqp;
3323 3323 int rval;
3324 3324 usb_pipe_state_t pipe_state;
3325 3325
3326 3326 USB_DPRINTF_L4(DPRINT_MASK_HUB, hubd->h_log_handle,
3327 3327 "start polling: always=%d dev_state=%d pipe_state=%d\n\t"
3328 3328 "thread=%d ep1_ph=0x%p",
3329 3329 always, hubd->h_dev_state, hubd->h_intr_pipe_state,
3330 3330 hubd->h_hotplug_thread, (void *)hubd->h_ep1_ph);
3331 3331
3332 3332 /*
3333 3333 * start or restart polling on the intr pipe
3334 3334 * only if hotplug thread is not running
3335 3335 */
3336 3336 if ((always == HUBD_ALWAYS_START_POLLING) ||
3337 3337 ((hubd->h_dev_state == USB_DEV_ONLINE) &&
3338 3338 (hubd->h_intr_pipe_state == HUBD_INTR_PIPE_ACTIVE) &&
3339 3339 (hubd->h_hotplug_thread == 0) && hubd->h_ep1_ph)) {
3340 3340 USB_DPRINTF_L4(DPRINT_MASK_HUB, hubd->h_log_handle,
3341 3341 "start polling requested");
3342 3342
3343 3343 reqp = usb_alloc_intr_req(hubd->h_dip, 0, USB_FLAGS_SLEEP);
3344 3344
3345 3345 reqp->intr_client_private = (usb_opaque_t)hubd;
3346 3346 reqp->intr_attributes = USB_ATTRS_SHORT_XFER_OK |
3347 3347 USB_ATTRS_AUTOCLEARING;
3348 3348 reqp->intr_len = hubd->h_ep1_descr.wMaxPacketSize;
3349 3349 reqp->intr_cb = hubd_read_cb;
3350 3350 reqp->intr_exc_cb = hubd_exception_cb;
3351 3351 mutex_exit(HUBD_MUTEX(hubd));
3352 3352 if ((rval = usb_pipe_intr_xfer(hubd->h_ep1_ph, reqp,
3353 3353 USB_FLAGS_SLEEP)) != USB_SUCCESS) {
3354 3354 USB_DPRINTF_L2(DPRINT_MASK_HUB, hubd->h_log_handle,
3355 3355 "start polling failed, rval=%d", rval);
3356 3356 usb_free_intr_req(reqp);
3357 3357 }
3358 3358
3359 3359 rval = usb_pipe_get_state(hubd->h_ep1_ph, &pipe_state,
3360 3360 USB_FLAGS_SLEEP);
3361 3361 if (pipe_state != USB_PIPE_STATE_ACTIVE) {
3362 3362 USB_DPRINTF_L2(DPRINT_MASK_PORT, hubd->h_log_handle,
3363 3363 "intr pipe state=%d, rval=%d", pipe_state, rval);
3364 3364 }
3365 3365 USB_DPRINTF_L4(DPRINT_MASK_HUB, hubd->h_log_handle,
3366 3366 "start polling request 0x%p", (void *)reqp);
3367 3367
3368 3368 mutex_enter(HUBD_MUTEX(hubd));
3369 3369 }
3370 3370 }
3371 3371
3372 3372
3373 3373 /*
3374 3374 * hubd_stop_polling
3375 3375 * stop polling but do not close the pipe
3376 3376 */
3377 3377 static void
3378 3378 hubd_stop_polling(hubd_t *hubd)
3379 3379 {
3380 3380 int rval;
3381 3381 usb_pipe_state_t pipe_state;
3382 3382
3383 3383 if (hubd->h_ep1_ph) {
3384 3384 USB_DPRINTF_L4(DPRINT_MASK_PORT, hubd->h_log_handle,
3385 3385 "hubd_stop_polling:");
3386 3386 hubd->h_intr_pipe_state = HUBD_INTR_PIPE_STOPPED;
3387 3387 mutex_exit(HUBD_MUTEX(hubd));
3388 3388
3389 3389 usb_pipe_stop_intr_polling(hubd->h_ep1_ph, USB_FLAGS_SLEEP);
3390 3390 rval = usb_pipe_get_state(hubd->h_ep1_ph, &pipe_state,
3391 3391 USB_FLAGS_SLEEP);
3392 3392
3393 3393 if (pipe_state != USB_PIPE_STATE_IDLE) {
3394 3394 USB_DPRINTF_L2(DPRINT_MASK_PORT, hubd->h_log_handle,
3395 3395 "intr pipe state=%d, rval=%d", pipe_state, rval);
3396 3396 }
3397 3397 mutex_enter(HUBD_MUTEX(hubd));
3398 3398 if (hubd->h_intr_pipe_state == HUBD_INTR_PIPE_STOPPED) {
3399 3399 hubd->h_intr_pipe_state = HUBD_INTR_PIPE_ACTIVE;
3400 3400 }
3401 3401 }
3402 3402 }
3403 3403
3404 3404
3405 3405 /*
3406 3406 * hubd_close_intr_pipe:
3407 3407 * close the pipe (which also stops the polling
3408 3408 * and wait for the hotplug thread to exit
3409 3409 */
3410 3410 static void
3411 3411 hubd_close_intr_pipe(hubd_t *hubd)
3412 3412 {
3413 3413 USB_DPRINTF_L4(DPRINT_MASK_HUB, hubd->h_log_handle,
3414 3414 "hubd_close_intr_pipe:");
3415 3415
3416 3416 /*
3417 3417 * Now that no async operation is outstanding on pipe,
3418 3418 * we can change the state to HUBD_INTR_PIPE_CLOSING
3419 3419 */
3420 3420 hubd->h_intr_pipe_state = HUBD_INTR_PIPE_CLOSING;
3421 3421
3422 3422 ASSERT(hubd->h_hotplug_thread == 0);
3423 3423
3424 3424 if (hubd->h_ep1_ph) {
3425 3425 mutex_exit(HUBD_MUTEX(hubd));
3426 3426 usb_pipe_close(hubd->h_dip, hubd->h_ep1_ph, USB_FLAGS_SLEEP,
3427 3427 NULL, NULL);
3428 3428 mutex_enter(HUBD_MUTEX(hubd));
3429 3429 hubd->h_ep1_ph = NULL;
3430 3430 }
3431 3431
3432 3432 hubd->h_intr_pipe_state = HUBD_INTR_PIPE_IDLE;
3433 3433 }
3434 3434
3435 3435
3436 3436 /*
3437 3437 * hubd_exception_cb
3438 3438 * interrupt ep1 exception callback function.
3439 3439 * this callback executes in taskq thread context and assumes
3440 3440 * autoclearing
3441 3441 */
3442 3442 /*ARGSUSED*/
3443 3443 static void
3444 3444 hubd_exception_cb(usb_pipe_handle_t pipe, usb_intr_req_t *reqp)
3445 3445 {
3446 3446 hubd_t *hubd = (hubd_t *)(reqp->intr_client_private);
3447 3447
3448 3448 USB_DPRINTF_L2(DPRINT_MASK_CALLBACK, hubd->h_log_handle,
3449 3449 "hubd_exception_cb: "
3450 3450 "req=0x%p cr=%d data=0x%p cb_flags=0x%x", (void *)reqp,
3451 3451 reqp->intr_completion_reason, (void *)reqp->intr_data,
3452 3452 reqp->intr_cb_flags);
3453 3453
3454 3454 ASSERT((reqp->intr_cb_flags & USB_CB_INTR_CONTEXT) == 0);
3455 3455
3456 3456 mutex_enter(HUBD_MUTEX(hubd));
3457 3457 (void) hubd_pm_busy_component(hubd, hubd->h_dip, 0);
3458 3458
3459 3459 switch (reqp->intr_completion_reason) {
3460 3460 case USB_CR_PIPE_RESET:
3461 3461 /* only restart polling after autoclearing */
3462 3462 if ((hubd->h_intr_pipe_state == HUBD_INTR_PIPE_ACTIVE) &&
3463 3463 (hubd->h_port_reset_wait == 0)) {
3464 3464 hubd_start_polling(hubd, 0);
3465 3465 }
3466 3466
3467 3467 break;
3468 3468 case USB_CR_DEV_NOT_RESP:
3469 3469 case USB_CR_STOPPED_POLLING:
3470 3470 case USB_CR_PIPE_CLOSING:
3471 3471 case USB_CR_UNSPECIFIED_ERR:
3472 3472 /* never restart polling on these conditions */
3473 3473 default:
3474 3474 /* for all others, wait for the autoclearing PIPE_RESET cb */
3475 3475
3476 3476 break;
3477 3477 }
3478 3478
3479 3479 usb_free_intr_req(reqp);
3480 3480 (void) hubd_pm_idle_component(hubd, hubd->h_dip, 0);
3481 3481 mutex_exit(HUBD_MUTEX(hubd));
3482 3482 }
3483 3483
3484 3484
3485 3485 /*
3486 3486 * helper function to convert LE bytes to a portmask
3487 3487 */
3488 3488 static usb_port_mask_t
3489 3489 hubd_mblk2portmask(mblk_t *data)
3490 3490 {
3491 3491 int len = min(MBLKL(data), sizeof (usb_port_mask_t));
3492 3492 usb_port_mask_t rval = 0;
3493 3493 int i;
3494 3494
3495 3495 for (i = 0; i < len; i++) {
3496 3496 rval |= data->b_rptr[i] << (i * 8);
3497 3497 }
3498 3498
3499 3499 return (rval);
3500 3500 }
3501 3501
3502 3502
3503 3503 /*
3504 3504 * hubd_read_cb:
3505 3505 * interrupt ep1 callback function
3506 3506 *
3507 3507 * the status indicates just a change on the pipe with no indication
3508 3508 * of what the change was
3509 3509 *
3510 3510 * known conditions:
3511 3511 * - reset port completion
3512 3512 * - connect
3513 3513 * - disconnect
3514 3514 *
3515 3515 * for handling the hotplugging, create a new thread that can do
3516 3516 * synchronous usba calls
3517 3517 */
3518 3518 static void
3519 3519 hubd_read_cb(usb_pipe_handle_t pipe, usb_intr_req_t *reqp)
3520 3520 {
3521 3521 hubd_t *hubd = (hubd_t *)(reqp->intr_client_private);
3522 3522 size_t length;
3523 3523 mblk_t *data = reqp->intr_data;
3524 3524 int mem_flag = 0;
3525 3525 hubd_hotplug_arg_t *arg;
3526 3526
3527 3527 USB_DPRINTF_L4(DPRINT_MASK_HUB, hubd->h_log_handle,
3528 3528 "hubd_read_cb: ph=0x%p req=0x%p", (void *)pipe, (void *)reqp);
3529 3529
3530 3530 ASSERT((reqp->intr_cb_flags & USB_CB_INTR_CONTEXT) == 0);
3531 3531
3532 3532 /*
3533 3533 * At present, we are not handling notification for completion of
3534 3534 * asynchronous pipe reset, for which this data ptr could be NULL
3535 3535 */
3536 3536
3537 3537 if (data == NULL) {
3538 3538 usb_free_intr_req(reqp);
3539 3539
3540 3540 return;
3541 3541 }
3542 3542
3543 3543 arg = (hubd_hotplug_arg_t *)kmem_zalloc(
3544 3544 sizeof (hubd_hotplug_arg_t), KM_SLEEP);
3545 3545 mem_flag = 1;
3546 3546
3547 3547 mutex_enter(HUBD_MUTEX(hubd));
3548 3548
3549 3549 if ((hubd->h_dev_state == USB_DEV_SUSPENDED) ||
3550 3550 (hubd->h_intr_pipe_state != HUBD_INTR_PIPE_ACTIVE)) {
3551 3551 mutex_exit(HUBD_MUTEX(hubd));
3552 3552 usb_free_intr_req(reqp);
3553 3553 kmem_free(arg, sizeof (hubd_hotplug_arg_t));
3554 3554
3555 3555 return;
3556 3556 }
3557 3557
3558 3558 ASSERT(hubd->h_ep1_ph == pipe);
3559 3559
3560 3560 length = MBLKL(data);
3561 3561
3562 3562 /*
3563 3563 * Only look at the data and startup the hotplug thread if
3564 3564 * there actually is data.
3565 3565 */
3566 3566 if (length != 0) {
3567 3567 usb_port_mask_t port_change = hubd_mblk2portmask(data);
3568 3568
3569 3569 /*
3570 3570 * if a port change was already reported and we are waiting for
3571 3571 * reset port completion then wake up the hotplug thread which
3572 3572 * should be waiting on reset port completion
3573 3573 *
3574 3574 * if there is disconnect event instead of reset completion, let
3575 3575 * the hotplug thread figure this out
3576 3576 */
3577 3577
3578 3578 /* remove the reset wait bits from the status */
3579 3579 hubd->h_port_change |= port_change &
3580 3580 ~hubd->h_port_reset_wait;
3581 3581
3582 3582 USB_DPRINTF_L3(DPRINT_MASK_CALLBACK, hubd->h_log_handle,
3583 3583 "port change=0x%x port_reset_wait=0x%x",
3584 3584 hubd->h_port_change, hubd->h_port_reset_wait);
3585 3585
3586 3586 /* there should be only one reset bit active at the time */
3587 3587 if (hubd->h_port_reset_wait & port_change) {
3588 3588 hubd->h_port_reset_wait = 0;
3589 3589 cv_signal(&hubd->h_cv_reset_port);
3590 3590 }
3591 3591
3592 3592 /*
3593 3593 * kick off the thread only if device is ONLINE and it is not
3594 3594 * during attaching or detaching
3595 3595 */
3596 3596 if ((hubd->h_dev_state == USB_DEV_ONLINE) &&
3597 3597 (!DEVI_IS_ATTACHING(hubd->h_dip)) &&
3598 3598 (!DEVI_IS_DETACHING(hubd->h_dip)) &&
3599 3599 (hubd->h_port_change) &&
3600 3600 (hubd->h_hotplug_thread == 0)) {
3601 3601 USB_DPRINTF_L3(DPRINT_MASK_CALLBACK, hubd->h_log_handle,
3602 3602 "creating hotplug thread: "
3603 3603 "dev_state=%d", hubd->h_dev_state);
3604 3604
3605 3605 /*
3606 3606 * Mark this device as busy. The will be marked idle
3607 3607 * if the async req fails or at the exit of hotplug
3608 3608 * thread
3609 3609 */
3610 3610 (void) hubd_pm_busy_component(hubd, hubd->h_dip, 0);
3611 3611
3612 3612 arg->hubd = hubd;
3613 3613 arg->hotplug_during_attach = B_FALSE;
3614 3614
3615 3615 if (usb_async_req(hubd->h_dip,
3616 3616 hubd_hotplug_thread,
3617 3617 (void *)arg, 0) == USB_SUCCESS) {
3618 3618 hubd->h_hotplug_thread++;
3619 3619 mem_flag = 0;
3620 3620 } else {
3621 3621 /* mark this device as idle */
3622 3622 (void) hubd_pm_idle_component(hubd,
3623 3623 hubd->h_dip, 0);
3624 3624 }
3625 3625 }
3626 3626 }
3627 3627 mutex_exit(HUBD_MUTEX(hubd));
3628 3628
3629 3629 if (mem_flag == 1) {
3630 3630 kmem_free(arg, sizeof (hubd_hotplug_arg_t));
3631 3631 }
3632 3632
3633 3633 usb_free_intr_req(reqp);
3634 3634 }
3635 3635
3636 3636
3637 3637 /*
3638 3638 * hubd_hotplug_thread:
3639 3639 * handles resetting of port, and creating children
3640 3640 *
3641 3641 * the ports to check are indicated in h_port_change bit mask
3642 3642 * XXX note that one time poll doesn't work on the root hub
3643 3643 */
3644 3644 static void
3645 3645 hubd_hotplug_thread(void *arg)
3646 3646 {
3647 3647 hubd_hotplug_arg_t *hd_arg = (hubd_hotplug_arg_t *)arg;
3648 3648 hubd_t *hubd = hd_arg->hubd;
3649 3649 boolean_t attach_flg = hd_arg->hotplug_during_attach;
3650 3650 usb_port_t port;
3651 3651 uint16_t nports;
3652 3652 uint16_t status, change;
3653 3653 hub_power_t *hubpm;
3654 3654 dev_info_t *hdip = hubd->h_dip;
3655 3655 dev_info_t *rh_dip = hubd->h_usba_device->usb_root_hub_dip;
3656 3656 dev_info_t *child_dip;
3657 3657 boolean_t online_child = B_FALSE;
3658 3658 boolean_t offline_child = B_FALSE;
3659 3659 boolean_t pwrup_child = B_FALSE;
3660 3660 int prh_circ, rh_circ, chld_circ, circ, old_state;
3661 3661
3662 3662 USB_DPRINTF_L4(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
3663 3663 "hubd_hotplug_thread: started");
3664 3664
3665 3665 /*
3666 3666 * Before console is init'd, we temporarily block the hotplug
3667 3667 * threads so that BUS_CONFIG_ONE through hubd_bus_config() can be
3668 3668 * processed quickly. This reduces the time needed for vfs_mountroot()
3669 3669 * to mount the root FS from a USB disk. And on SPARC platform,
3670 3670 * in order to load 'consconfig' successfully after OBP is gone,
3671 3671 * we need to check 'modrootloaded' to make sure root filesystem is
3672 3672 * available.
3673 3673 */
3674 3674 while (!modrootloaded || !consconfig_console_is_ready()) {
3675 3675 delay(drv_usectohz(10000));
3676 3676 }
3677 3677
3678 3678 kmem_free(arg, sizeof (hubd_hotplug_arg_t));
3679 3679
3680 3680 /*
3681 3681 * if our bus power entry point is active, process the change
3682 3682 * on the next notification of interrupt pipe
3683 3683 */
3684 3684 mutex_enter(HUBD_MUTEX(hubd));
3685 3685 if (hubd->h_bus_pwr || (hubd->h_hotplug_thread > 1)) {
3686 3686 hubd->h_hotplug_thread--;
3687 3687
3688 3688 /* mark this device as idle */
3689 3689 hubd_pm_idle_component(hubd, hubd->h_dip, 0);
3690 3690 mutex_exit(HUBD_MUTEX(hubd));
3691 3691
3692 3692 USB_DPRINTF_L3(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
3693 3693 "hubd_hotplug_thread: "
3694 3694 "bus_power in progress/hotplugging undesirable - quit");
3695 3695
3696 3696 return;
3697 3697 }
3698 3698 mutex_exit(HUBD_MUTEX(hubd));
3699 3699
3700 3700 ndi_hold_devi(hdip); /* so we don't race with detach */
3701 3701
3702 3702 mutex_enter(HUBD_MUTEX(hubd));
3703 3703
3704 3704 /* is this the root hub? */
3705 3705 if (hdip == rh_dip) {
3706 3706 if (hubd->h_dev_state == USB_DEV_PWRED_DOWN) {
3707 3707 hubpm = hubd->h_hubpm;
3708 3708
3709 3709 /* mark the root hub as full power */
3710 3710 hubpm->hubp_current_power = USB_DEV_OS_FULL_PWR;
3711 3711 hubpm->hubp_time_at_full_power = gethrtime();
3712 3712 mutex_exit(HUBD_MUTEX(hubd));
3713 3713
3714 3714 USB_DPRINTF_L4(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
3715 3715 "hubd_hotplug_thread: call pm_power_has_changed");
3716 3716
3717 3717 (void) pm_power_has_changed(hdip, 0,
3718 3718 USB_DEV_OS_FULL_PWR);
3719 3719
3720 3720 mutex_enter(HUBD_MUTEX(hubd));
3721 3721 hubd->h_dev_state = USB_DEV_ONLINE;
3722 3722 }
3723 3723
3724 3724 } else {
3725 3725 USB_DPRINTF_L4(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
3726 3726 "hubd_hotplug_thread: not root hub");
3727 3727 }
3728 3728
3729 3729 mutex_exit(HUBD_MUTEX(hubd));
3730 3730
3731 3731 /*
3732 3732 * this ensures one hotplug activity per system at a time.
3733 3733 * we enter the parent PCI node to have this serialization.
3734 3734 * this also excludes ioctls and deathrow thread
3735 3735 * (a bit crude but easier to debug)
3736 3736 */
3737 3737 ndi_devi_enter(ddi_get_parent(rh_dip), &prh_circ);
3738 3738 ndi_devi_enter(rh_dip, &rh_circ);
3739 3739
3740 3740 /* exclude other threads */
3741 3741 ndi_devi_enter(hdip, &circ);
3742 3742 mutex_enter(HUBD_MUTEX(hubd));
3743 3743
3744 3744 ASSERT(hubd->h_intr_pipe_state == HUBD_INTR_PIPE_ACTIVE);
3745 3745
3746 3746 nports = hubd->h_hub_descr.bNbrPorts;
3747 3747
3748 3748 hubd_stop_polling(hubd);
3749 3749
3750 3750 while ((hubd->h_dev_state == USB_DEV_ONLINE) &&
3751 3751 (hubd->h_port_change)) {
3752 3752 /*
3753 3753 * The 0th bit is the hub status change bit.
3754 3754 * handle loss of local power here
3755 3755 */
3756 3756 if (hubd->h_port_change & HUB_CHANGE_STATUS) {
3757 3757 USB_DPRINTF_L3(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
3758 3758 "hubd_hotplug_thread: hub status change!");
3759 3759
3760 3760 /*
3761 3761 * This should be handled properly. For now,
3762 3762 * mask off the bit.
3763 3763 */
3764 3764 hubd->h_port_change &= ~HUB_CHANGE_STATUS;
3765 3765
3766 3766 /*
3767 3767 * check and ack hub status
3768 3768 * this causes stall conditions
3769 3769 * when local power is removed
3770 3770 */
3771 3771 (void) hubd_get_hub_status(hubd);
3772 3772 }
3773 3773
3774 3774 for (port = 1; port <= nports; port++) {
3775 3775 usb_port_mask_t port_mask;
3776 3776 boolean_t was_connected;
3777 3777
3778 3778 port_mask = 1 << port;
3779 3779 was_connected =
3780 3780 (hubd->h_port_state[port] & PORT_STATUS_CCS) &&
3781 3781 (hubd->h_children_dips[port]);
3782 3782
3783 3783 USB_DPRINTF_L3(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
3784 3784 "hubd_hotplug_thread: "
3785 3785 "port %d mask=0x%x change=0x%x connected=0x%x",
3786 3786 port, port_mask, hubd->h_port_change,
3787 3787 was_connected);
3788 3788
3789 3789 /*
3790 3790 * is this a port connection that changed?
3791 3791 */
3792 3792 if ((hubd->h_port_change & port_mask) == 0) {
3793 3793
3794 3794 continue;
3795 3795 }
3796 3796 hubd->h_port_change &= ~port_mask;
3797 3797
3798 3798 /* ack all changes */
3799 3799 (void) hubd_determine_port_status(hubd, port,
3800 3800 &status, &change, HUBD_ACK_ALL_CHANGES);
3801 3801
3802 3802 USB_DPRINTF_L3(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
3803 3803 "handle port %d:\n\t"
3804 3804 "new status=0x%x change=0x%x was_conn=0x%x ",
3805 3805 port, status, change, was_connected);
3806 3806
3807 3807 /* Recover a disabled port */
3808 3808 if (change & PORT_CHANGE_PESC) {
3809 3809 USB_DPRINTF_L3(DPRINT_MASK_HOTPLUG,
3810 3810 hubd->h_log_handle,
3811 3811 "port%d Disabled - "
3812 3812 "status=0x%x, change=0x%x",
3813 3813 port, status, change);
3814 3814
3815 3815 /*
3816 3816 * if the port was connected and is still
3817 3817 * connected, recover the port
3818 3818 */
3819 3819 if (was_connected && (status &
3820 3820 PORT_STATUS_CCS)) {
3821 3821 online_child |=
3822 3822 (hubd_recover_disabled_port(hubd,
3823 3823 port) == USB_SUCCESS);
3824 3824 }
3825 3825 }
3826 3826
3827 3827 /*
3828 3828 * Now check what changed on the port
3829 3829 */
3830 3830 if ((change & PORT_CHANGE_CSC) || attach_flg) {
3831 3831 if ((status & PORT_STATUS_CCS) &&
3832 3832 (!was_connected)) {
3833 3833 /* new device plugged in */
3834 3834 online_child |=
3835 3835 (hubd_handle_port_connect(hubd,
3836 3836 port) == USB_SUCCESS);
3837 3837
3838 3838 } else if ((status & PORT_STATUS_CCS) &&
3839 3839 was_connected) {
3840 3840 /*
3841 3841 * In this case we can never be sure
3842 3842 * if the device indeed got hotplugged
3843 3843 * or the hub is falsely reporting the
3844 3844 * change.
3845 3845 */
3846 3846 child_dip = hubd->h_children_dips[port];
3847 3847
3848 3848 mutex_exit(HUBD_MUTEX(hubd));
3849 3849 /*
3850 3850 * this ensures we do not race with
3851 3851 * other threads which are detaching
3852 3852 * the child driver at the same time.
3853 3853 */
3854 3854 ndi_devi_enter(child_dip, &chld_circ);
3855 3855 /*
3856 3856 * Now check if the driver remains
3857 3857 * attached.
3858 3858 */
3859 3859 if (i_ddi_devi_attached(child_dip)) {
3860 3860 /*
3861 3861 * first post a disconnect event
3862 3862 * to the child.
3863 3863 */
3864 3864 hubd_post_event(hubd, port,
3865 3865 USBA_EVENT_TAG_HOT_REMOVAL);
3866 3866 mutex_enter(HUBD_MUTEX(hubd));
3867 3867
3868 3868 /*
3869 3869 * then reset the port and
3870 3870 * recover the device
3871 3871 */
3872 3872 online_child |=
3873 3873 (hubd_handle_port_connect(
3874 3874 hubd, port) == USB_SUCCESS);
3875 3875
3876 3876 mutex_exit(HUBD_MUTEX(hubd));
3877 3877 }
3878 3878
3879 3879 ndi_devi_exit(child_dip, chld_circ);
3880 3880 mutex_enter(HUBD_MUTEX(hubd));
3881 3881 } else if (was_connected) {
3882 3882 /* this is a disconnect */
3883 3883 mutex_exit(HUBD_MUTEX(hubd));
3884 3884 hubd_post_event(hubd, port,
3885 3885 USBA_EVENT_TAG_HOT_REMOVAL);
3886 3886 mutex_enter(HUBD_MUTEX(hubd));
3887 3887
3888 3888 offline_child = B_TRUE;
3889 3889 }
3890 3890 }
3891 3891
3892 3892 /*
3893 3893 * Check if any port is coming out of suspend
3894 3894 */
3895 3895 if (change & PORT_CHANGE_PSSC) {
3896 3896 /* a resuming device could have disconnected */
3897 3897 if (was_connected &&
3898 3898 hubd->h_children_dips[port]) {
3899 3899
3900 3900 /* device on this port resuming */
3901 3901 dev_info_t *dip;
3902 3902
3903 3903 dip = hubd->h_children_dips[port];
3904 3904
3905 3905 /*
3906 3906 * Don't raise power on detaching child
3907 3907 */
3908 3908 if (!DEVI_IS_DETACHING(dip)) {
3909 3909 /*
3910 3910 * As this child is not
3911 3911 * detaching, we set this
3912 3912 * flag, causing bus_ctls
3913 3913 * to stall detach till
3914 3914 * pm_raise_power returns
3915 3915 * and flag it for a deferred
3916 3916 * raise_power.
3917 3917 *
3918 3918 * pm_raise_power is deferred
3919 3919 * because we need to release
3920 3920 * the locks first.
3921 3921 */
3922 3922 hubd->h_port_state[port] |=
3923 3923 HUBD_CHILD_RAISE_POWER;
3924 3924 pwrup_child = B_TRUE;
3925 3925 mutex_exit(HUBD_MUTEX(hubd));
3926 3926
3927 3927 /*
3928 3928 * make sure that child
3929 3929 * doesn't disappear
3930 3930 */
3931 3931 ndi_hold_devi(dip);
3932 3932
3933 3933 mutex_enter(HUBD_MUTEX(hubd));
3934 3934 }
3935 3935 }
3936 3936 }
3937 3937
3938 3938 /*
3939 3939 * Check if the port is over-current
3940 3940 */
3941 3941 if (change & PORT_CHANGE_OCIC) {
3942 3942 USB_DPRINTF_L1(DPRINT_MASK_HOTPLUG,
3943 3943 hubd->h_log_handle,
3944 3944 "Port%d in over current condition, "
3945 3945 "please check the attached device to "
3946 3946 "clear the condition. The system will "
3947 3947 "try to recover the port, but if not "
3948 3948 "successful, you need to re-connect "
3949 3949 "the hub or reboot the system to bring "
3950 3950 "the port back to work", port);
3951 3951
3952 3952 if (!(status & PORT_STATUS_PPS)) {
3953 3953 /*
3954 3954 * Try to enable port power, but
3955 3955 * possibly fail. Ignore failure
3956 3956 */
3957 3957 (void) hubd_enable_port_power(hubd,
3958 3958 port);
3959 3959
3960 3960 /*
3961 3961 * Delay some time to avoid
3962 3962 * over-current event to happen
3963 3963 * too frequently in some cases
3964 3964 */
3965 3965 mutex_exit(HUBD_MUTEX(hubd));
3966 3966 delay(drv_usectohz(500000));
3967 3967 mutex_enter(HUBD_MUTEX(hubd));
3968 3968 }
3969 3969 }
3970 3970 }
3971 3971 }
3972 3972
3973 3973 /* release locks so we can do a devfs_clean */
3974 3974 mutex_exit(HUBD_MUTEX(hubd));
3975 3975
3976 3976 /* delete cached dv_node's but drop locks first */
3977 3977 ndi_devi_exit(hdip, circ);
3978 3978 ndi_devi_exit(rh_dip, rh_circ);
3979 3979 ndi_devi_exit(ddi_get_parent(rh_dip), prh_circ);
3980 3980
3981 3981 (void) devfs_clean(rh_dip, NULL, 0);
3982 3982
3983 3983 /* now check if any children need onlining */
3984 3984 if (online_child) {
3985 3985 USB_DPRINTF_L3(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
3986 3986 "hubd_hotplug_thread: onlining children");
3987 3987
3988 3988 (void) ndi_devi_online(hubd->h_dip, 0);
3989 3989 }
3990 3990
3991 3991 /* now check if any disconnected devices need to be cleaned up */
3992 3992 if (offline_child) {
3993 3993 USB_DPRINTF_L3(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
3994 3994 "hubd_hotplug_thread: scheduling cleanup");
3995 3995
3996 3996 hubd_schedule_cleanup(hubd->h_usba_device->usb_root_hub_dip);
3997 3997 }
3998 3998
3999 3999 mutex_enter(HUBD_MUTEX(hubd));
4000 4000
4001 4001 /* now raise power on the children that have woken up */
4002 4002 if (pwrup_child) {
4003 4003 old_state = hubd->h_dev_state;
4004 4004 hubd->h_dev_state = USB_DEV_HUB_CHILD_PWRLVL;
4005 4005 for (port = 1; port <= nports; port++) {
4006 4006 if (hubd->h_port_state[port] & HUBD_CHILD_RAISE_POWER) {
4007 4007 dev_info_t *dip = hubd->h_children_dips[port];
4008 4008
4009 4009 mutex_exit(HUBD_MUTEX(hubd));
4010 4010
4011 4011 /* Get the device to full power */
4012 4012 (void) pm_busy_component(dip, 0);
4013 4013 (void) pm_raise_power(dip, 0,
4014 4014 USB_DEV_OS_FULL_PWR);
4015 4015 (void) pm_idle_component(dip, 0);
4016 4016
4017 4017 /* release the hold on the child */
4018 4018 ndi_rele_devi(dip);
4019 4019 mutex_enter(HUBD_MUTEX(hubd));
4020 4020 hubd->h_port_state[port] &=
4021 4021 ~HUBD_CHILD_RAISE_POWER;
4022 4022 }
4023 4023 }
4024 4024 /*
4025 4025 * make sure that we don't accidentally
4026 4026 * over write the disconnect state
4027 4027 */
4028 4028 if (hubd->h_dev_state == USB_DEV_HUB_CHILD_PWRLVL) {
4029 4029 hubd->h_dev_state = old_state;
4030 4030 }
4031 4031 }
4032 4032
4033 4033 /*
4034 4034 * start polling can immediately kick off read callback
4035 4035 * we need to set the h_hotplug_thread to 0 so that
4036 4036 * the callback is not dropped
4037 4037 *
4038 4038 * if there is device during reset, still stop polling to avoid the
4039 4039 * read callback interrupting the reset, the polling will be started
4040 4040 * in hubd_reset_thread.
4041 4041 */
4042 4042 for (port = 1; port <= MAX_PORTS; port++) {
4043 4043 if (hubd->h_reset_port[port]) {
4044 4044
4045 4045 break;
4046 4046 }
4047 4047 }
4048 4048 if (port > MAX_PORTS) {
4049 4049 hubd_start_polling(hubd, HUBD_ALWAYS_START_POLLING);
4050 4050 }
4051 4051
4052 4052 /*
4053 4053 * Earlier we would set the h_hotplug_thread = 0 before
4054 4054 * polling was restarted so that
4055 4055 * if there is any root hub status change interrupt, we can still kick
4056 4056 * off the hotplug thread. This was valid when this interrupt was
4057 4057 * delivered in hardware, and only ONE interrupt would be delivered.
4058 4058 * Now that we poll on the root hub looking for status change in
4059 4059 * software, this assignment is no longer required.
4060 4060 */
4061 4061 hubd->h_hotplug_thread--;
4062 4062
4063 4063 /* mark this device as idle */
4064 4064 (void) hubd_pm_idle_component(hubd, hubd->h_dip, 0);
4065 4065
4066 4066 cv_broadcast(&hubd->h_cv_hotplug_dev);
4067 4067
4068 4068 USB_DPRINTF_L4(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
4069 4069 "hubd_hotplug_thread: exit");
4070 4070
4071 4071 mutex_exit(HUBD_MUTEX(hubd));
4072 4072
4073 4073 ndi_rele_devi(hdip);
4074 4074 }
4075 4075
4076 4076
4077 4077 /*
4078 4078 * hubd_handle_port_connect:
4079 4079 * Transition a port from Disabled to Enabled. Ensure that the
4080 4080 * port is in the correct state before attempting to
4081 4081 * access the device.
4082 4082 */
4083 4083 static int
4084 4084 hubd_handle_port_connect(hubd_t *hubd, usb_port_t port)
4085 4085 {
4086 4086 int rval;
4087 4087 int retry;
4088 4088 long time_delay;
4089 4089 long settling_time;
4090 4090 uint16_t status;
4091 4091 uint16_t change;
4092 4092 usb_addr_t hubd_usb_addr;
4093 4093 usba_device_t *usba_device;
4094 4094 usb_port_status_t port_status = 0;
4095 4095 usb_port_status_t hub_port_status = 0;
4096 4096
4097 4097 /* Get the hub address and port status */
4098 4098 usba_device = hubd->h_usba_device;
4099 4099 mutex_enter(&usba_device->usb_mutex);
4100 4100 hubd_usb_addr = usba_device->usb_addr;
4101 4101 hub_port_status = usba_device->usb_port_status;
4102 4102 mutex_exit(&usba_device->usb_mutex);
4103 4103
4104 4104 /*
4105 4105 * If a device is connected, transition the
4106 4106 * port from Disabled to the Enabled state.
4107 4107 * The device will receive downstream packets
4108 4108 * in the Enabled state.
4109 4109 *
4110 4110 * reset port and wait for the hub to report
4111 4111 * completion
4112 4112 */
4113 4113 change = status = 0;
4114 4114
4115 4115 /*
4116 4116 * According to section 9.1.2 of USB 2.0 spec, the host should
4117 4117 * wait for atleast 100ms to allow completion of an insertion
4118 4118 * process and for power at the device to become stable.
4119 4119 * We wait for 200 ms
4120 4120 */
4121 4121 settling_time = drv_usectohz(hubd_device_delay / 5);
4122 4122 mutex_exit(HUBD_MUTEX(hubd));
4123 4123 delay(settling_time);
4124 4124 mutex_enter(HUBD_MUTEX(hubd));
4125 4125
4126 4126 /* calculate 600 ms delay time */
4127 4127 time_delay = (6 * drv_usectohz(hubd_device_delay)) / 10;
4128 4128
4129 4129 for (retry = 0; (hubd->h_dev_state == USB_DEV_ONLINE) &&
4130 4130 (retry < hubd_retry_enumerate); retry++) {
4131 4131 USB_DPRINTF_L4(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
4132 4132 "resetting port%d, retry=%d", port, retry);
4133 4133
4134 4134 if ((rval = hubd_reset_port(hubd, port)) != USB_SUCCESS) {
4135 4135 (void) hubd_determine_port_status(hubd,
4136 4136 port, &status, &change, 0);
4137 4137
4138 4138 /* continue only if port is still connected */
4139 4139 if (status & PORT_STATUS_CCS) {
4140 4140 continue;
4141 4141 }
4142 4142
4143 4143 /* carry on regardless */
4144 4144 }
4145 4145
4146 4146 /*
4147 4147 * according to USB 2.0 spec section 11.24.2.7.1.2
4148 4148 * at the end of port reset, the hub enables the port.
4149 4149 * But for some strange reasons, uhci port remains disabled.
4150 4150 * And because the port remains disabled for the settling
4151 4151 * time below, the device connected to the port gets wedged
4152 4152 * - fails to enumerate (device not responding)
4153 4153 * Hence, we enable it here immediately and later again after
4154 4154 * the delay
4155 4155 */
4156 4156 (void) hubd_enable_port(hubd, port);
4157 4157
4158 4158 /* we skip this delay in the first iteration */
4159 4159 if (retry) {
4160 4160 /*
4161 4161 * delay for device to signal disconnect/connect so
4162 4162 * that hub properly recognizes the speed of the device
4163 4163 */
4164 4164 mutex_exit(HUBD_MUTEX(hubd));
4165 4165 delay(settling_time);
4166 4166 mutex_enter(HUBD_MUTEX(hubd));
4167 4167
4168 4168 /*
4169 4169 * When a low speed device is connected to any port of
4170 4170 * PPX it has to be explicitly enabled
4171 4171 * Also, if device intentionally signals
4172 4172 * disconnect/connect, it will disable the port.
4173 4173 * So enable it again.
4174 4174 */
4175 4175 (void) hubd_enable_port(hubd, port);
4176 4176 }
4177 4177
4178 4178 if ((rval = hubd_determine_port_status(hubd, port, &status,
4179 4179 &change, 0)) != USB_SUCCESS) {
4180 4180
4181 4181 USB_DPRINTF_L2(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
4182 4182 "getting status failed (%d)", rval);
4183 4183
4184 4184 (void) hubd_disable_port(hubd, port);
4185 4185
4186 4186 continue;
4187 4187 }
4188 4188
4189 4189 if (status & PORT_STATUS_POCI) {
4190 4190 USB_DPRINTF_L0(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
4191 4191 "port %d overcurrent", port);
4192 4192
4193 4193 (void) hubd_disable_port(hubd, port);
4194 4194
4195 4195 /* ack changes */
4196 4196 (void) hubd_determine_port_status(hubd,
4197 4197 port, &status, &change, PORT_CHANGE_OCIC);
4198 4198
4199 4199 continue;
4200 4200 }
4201 4201
4202 4202 /* is status really OK? */
4203 4203 if ((status & PORT_STATUS_OK) != PORT_STATUS_OK) {
4204 4204 USB_DPRINTF_L2(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
4205 4205 "port %d status (0x%x) not OK on retry %d",
4206 4206 port, status, retry);
4207 4207
4208 4208 /* check if we still have the connection */
4209 4209 if (!(status & PORT_STATUS_CCS)) {
4210 4210 /* lost connection, set exit condition */
4211 4211 retry = hubd_retry_enumerate;
4212 4212
4213 4213 break;
4214 4214 }
4215 4215 } else {
4216 4216 /*
4217 4217 * Determine if the device is high or full
4218 4218 * or low speed.
4219 4219 */
4220 4220 if (status & PORT_STATUS_LSDA) {
4221 4221 port_status = USBA_LOW_SPEED_DEV;
4222 4222 } else if (status & PORT_STATUS_HSDA) {
4223 4223 port_status = USBA_HIGH_SPEED_DEV;
4224 4224 } else {
4225 4225 port_status = USBA_FULL_SPEED_DEV;
4226 4226 }
4227 4227
4228 4228 USB_DPRINTF_L3(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
4229 4229 "creating child port%d, status=0x%x "
4230 4230 "port status=0x%x",
4231 4231 port, status, port_status);
4232 4232
4233 4233 /*
4234 4234 * if the child already exists, set addrs and config
4235 4235 * to the device post connect event to the child
4236 4236 */
4237 4237 if (hubd->h_children_dips[port]) {
4238 4238 /* set addrs to this device */
4239 4239 rval = hubd_setdevaddr(hubd, port);
4240 4240
4241 4241 /*
4242 4242 * This delay is important for the CATC hub
4243 4243 * to enumerate. But, avoid delay in the first
4244 4244 * iteration
4245 4245 */
4246 4246 if (retry) {
4247 4247 mutex_exit(HUBD_MUTEX(hubd));
4248 4248 delay(drv_usectohz(
4249 4249 hubd_device_delay/100));
4250 4250 mutex_enter(HUBD_MUTEX(hubd));
4251 4251 }
4252 4252
4253 4253 if (rval == USB_SUCCESS) {
4254 4254 /*
4255 4255 * if the port is resetting, check if
4256 4256 * device's descriptors have changed.
4257 4257 */
4258 4258 if ((hubd->h_reset_port[port]) &&
4259 4259 (hubd_check_same_device(hubd,
4260 4260 port) != USB_SUCCESS)) {
4261 4261 retry = hubd_retry_enumerate;
4262 4262
4263 4263 break;
4264 4264 }
4265 4265
4266 4266 /*
4267 4267 * set the default config for
4268 4268 * this device
4269 4269 */
4270 4270 hubd_setdevconfig(hubd, port);
4271 4271
4272 4272 /*
4273 4273 * if we are doing Default reset, do
4274 4274 * not post reconnect event since we
4275 4275 * don't know where reset function is
4276 4276 * called.
4277 4277 */
4278 4278 if (hubd->h_reset_port[port]) {
4279 4279
4280 4280 return (USB_SUCCESS);
4281 4281 }
4282 4282
4283 4283 /*
4284 4284 * indicate to the child that
4285 4285 * it is online again
4286 4286 */
4287 4287 mutex_exit(HUBD_MUTEX(hubd));
4288 4288 hubd_post_event(hubd, port,
4289 4289 USBA_EVENT_TAG_HOT_INSERTION);
4290 4290 mutex_enter(HUBD_MUTEX(hubd));
4291 4291
4292 4292 return (USB_SUCCESS);
4293 4293 }
4294 4294 } else {
4295 4295 /*
4296 4296 * We need to release access here
4297 4297 * so that busctls on other ports can
4298 4298 * continue and don't cause a deadlock
4299 4299 * when busctl and removal of prom node
4300 4300 * takes concurrently. This also ensures
4301 4301 * busctls for attach of successfully
4302 4302 * enumerated devices on other ports can
4303 4303 * continue concurrently with the process
4304 4304 * of enumerating the new devices. This
4305 4305 * reduces the overall boot time of the system.
4306 4306 */
4307 4307 rval = hubd_create_child(hubd->h_dip,
4308 4308 hubd,
4309 4309 hubd->h_usba_device,
4310 4310 port_status, port,
4311 4311 retry);
4312 4312 if (rval == USB_SUCCESS) {
4313 4313 usba_update_hotplug_stats(hubd->h_dip,
4314 4314 USBA_TOTAL_HOTPLUG_SUCCESS|
4315 4315 USBA_HOTPLUG_SUCCESS);
4316 4316 hubd->h_total_hotplug_success++;
4317 4317
4318 4318 if (retry > 0) {
4319 4319 USB_DPRINTF_L2(
4320 4320 DPRINT_MASK_HOTPLUG,
4321 4321 hubd->h_log_handle,
4322 4322 "device on port %d "
4323 4323 "enumerated after %d %s",
4324 4324 port, retry,
4325 4325 (retry > 1) ? "retries" :
4326 4326 "retry");
4327 4327
4328 4328 }
4329 4329
4330 4330 return (USB_SUCCESS);
4331 4331 }
4332 4332 }
4333 4333 }
4334 4334
4335 4335 /* wait a while until it settles? */
4336 4336 USB_DPRINTF_L2(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
4337 4337 "disabling port %d again", port);
4338 4338
4339 4339 (void) hubd_disable_port(hubd, port);
4340 4340 if (retry) {
4341 4341 mutex_exit(HUBD_MUTEX(hubd));
4342 4342 delay(time_delay);
4343 4343 mutex_enter(HUBD_MUTEX(hubd));
4344 4344 }
4345 4345
4346 4346 USB_DPRINTF_L2(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
4347 4347 "retrying on port %d", port);
4348 4348 }
4349 4349
4350 4350 if (retry >= hubd_retry_enumerate) {
4351 4351 /*
4352 4352 * If it is a High Speed Root Hub and connected device
4353 4353 * Is a Low/Full Speed, it will be handled by USB 1.1
4354 4354 * Host Controller. In this case, USB 2.0 Host Controller
4355 4355 * will transfer the ownership of this port to USB 1.1
4356 4356 * Host Controller. So don't display any error message on
4357 4357 * the console.
4358 4358 */
4359 4359 if ((hubd_usb_addr == ROOT_HUB_ADDR) &&
4360 4360 (hub_port_status == USBA_HIGH_SPEED_DEV) &&
4361 4361 (port_status != USBA_HIGH_SPEED_DEV)) {
4362 4362 USB_DPRINTF_L2(DPRINT_MASK_HOTPLUG,
4363 4363 hubd->h_log_handle,
4364 4364 "hubd_handle_port_connect: Low/Full speed "
4365 4365 "device is connected to High Speed root hub");
4366 4366 } else {
4367 4367 USB_DPRINTF_L0(DPRINT_MASK_HOTPLUG,
4368 4368 hubd->h_log_handle,
4369 4369 "Connecting device on port %d failed", port);
4370 4370 }
4371 4371
4372 4372 (void) hubd_disable_port(hubd, port);
4373 4373 usba_update_hotplug_stats(hubd->h_dip,
4374 4374 USBA_TOTAL_HOTPLUG_FAILURE|USBA_HOTPLUG_FAILURE);
4375 4375 hubd->h_total_hotplug_failure++;
4376 4376
4377 4377 /*
4378 4378 * the port should be automagically
4379 4379 * disabled but just in case, we do
4380 4380 * it here
4381 4381 */
4382 4382 (void) hubd_disable_port(hubd, port);
4383 4383
4384 4384 /* ack all changes because we disabled this port */
4385 4385 (void) hubd_determine_port_status(hubd,
4386 4386 port, &status, &change, HUBD_ACK_ALL_CHANGES);
4387 4387
4388 4388 }
4389 4389
4390 4390 return (USB_FAILURE);
4391 4391 }
4392 4392
4393 4393
4394 4394 /*
4395 4395 * hubd_get_hub_status:
4396 4396 */
4397 4397 static int
4398 4398 hubd_get_hub_status(hubd_t *hubd)
4399 4399 {
4400 4400 int rval;
4401 4401 usb_cr_t completion_reason;
4402 4402 usb_cb_flags_t cb_flags;
4403 4403 uint16_t stword[2];
4404 4404 uint16_t status;
4405 4405 uint16_t change;
4406 4406 usb_cfg_descr_t cfg_descr;
4407 4407 size_t cfg_length;
4408 4408 uchar_t *usb_cfg;
4409 4409 uint8_t MaxPower;
4410 4410 usb_hub_descr_t *hub_descr;
4411 4411 usb_port_t port;
4412 4412
4413 4413 USB_DPRINTF_L4(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
4414 4414 "hubd_get_hub_status:");
4415 4415
4416 4416 ASSERT(mutex_owned(HUBD_MUTEX(hubd)));
4417 4417
4418 4418 if ((hubd_get_hub_status_words(hubd, stword)) != USB_SUCCESS) {
4419 4419
4420 4420 return (USB_FAILURE);
4421 4421 }
4422 4422 status = stword[0];
4423 4423 change = stword[1];
4424 4424
4425 4425 mutex_exit(HUBD_MUTEX(hubd));
4426 4426
4427 4427 /* Obtain the raw configuration descriptor */
4428 4428 usb_cfg = usb_get_raw_cfg_data(hubd->h_dip, &cfg_length);
4429 4429
4430 4430 /* get configuration descriptor */
4431 4431 rval = usb_parse_cfg_descr(usb_cfg, cfg_length,
4432 4432 &cfg_descr, USB_CFG_DESCR_SIZE);
4433 4433
4434 4434 if (rval != USB_CFG_DESCR_SIZE) {
4435 4435
4436 4436 USB_DPRINTF_L2(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
4437 4437 "get hub configuration descriptor failed.");
4438 4438
4439 4439 mutex_enter(HUBD_MUTEX(hubd));
4440 4440
4441 4441 return (USB_FAILURE);
4442 4442 } else {
4443 4443 MaxPower = cfg_descr.bMaxPower;
4444 4444 }
4445 4445
4446 4446 /* check if local power status changed. */
4447 4447 if (change & C_HUB_LOCAL_POWER_STATUS) {
4448 4448
4449 4449 /*
4450 4450 * local power has been lost, check the maximum
4451 4451 * power consumption of current configuration.
4452 4452 * see USB2.0 spec Table 11-12.
4453 4453 */
4454 4454 if (status & HUB_LOCAL_POWER_STATUS) {
4455 4455
4456 4456 if (MaxPower == 0) {
4457 4457
4458 4458 /*
4459 4459 * Self-powered only hub. Because it could
4460 4460 * not draw any power from USB bus.
4461 4461 * It can't work well on this condition.
4462 4462 */
4463 4463 USB_DPRINTF_L1(DPRINT_MASK_HOTPLUG,
4464 4464 hubd->h_log_handle,
4465 4465 "local power has been lost, "
4466 4466 "please disconnect hub");
4467 4467 } else {
4468 4468
4469 4469 /*
4470 4470 * Bus-powered only or self/bus-powered hub.
4471 4471 */
4472 4472 USB_DPRINTF_L1(DPRINT_MASK_HOTPLUG,
4473 4473 hubd->h_log_handle,
4474 4474 "local power has been lost,"
4475 4475 "the hub could draw %d"
4476 4476 " mA power from the USB bus.",
4477 4477 2*MaxPower);
4478 4478 }
4479 4479
4480 4480 }
4481 4481
4482 4482 USB_DPRINTF_L3(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
4483 4483 "clearing feature C_HUB_LOCAL_POWER ");
4484 4484
4485 4485 if ((rval = usb_pipe_sync_ctrl_xfer(hubd->h_dip,
4486 4486 hubd->h_default_pipe,
4487 4487 HUB_HANDLE_HUB_FEATURE_TYPE,
4488 4488 USB_REQ_CLEAR_FEATURE,
4489 4489 CFS_C_HUB_LOCAL_POWER,
4490 4490 0,
4491 4491 0,
4492 4492 NULL, 0,
4493 4493 &completion_reason, &cb_flags, 0)) != USB_SUCCESS) {
4494 4494 USB_DPRINTF_L2(DPRINT_MASK_HOTPLUG,
4495 4495 hubd->h_log_handle,
4496 4496 "clear feature C_HUB_LOCAL_POWER "
4497 4497 "failed (%d 0x%x %d)",
4498 4498 rval, completion_reason, cb_flags);
4499 4499 }
4500 4500
4501 4501 }
4502 4502
4503 4503 if (change & C_HUB_OVER_CURRENT) {
4504 4504
4505 4505 if (status & HUB_OVER_CURRENT) {
4506 4506
4507 4507 if (usba_is_root_hub(hubd->h_dip)) {
4508 4508 /*
4509 4509 * The root hub should be automatically
4510 4510 * recovered when over-current condition is
4511 4511 * cleared. But there might be exception and
4512 4512 * need user interaction to recover.
4513 4513 */
4514 4514 USB_DPRINTF_L0(DPRINT_MASK_HOTPLUG,
4515 4515 hubd->h_log_handle,
4516 4516 "Root hub over current condition, "
4517 4517 "please check your system to clear the "
4518 4518 "condition as soon as possible. And you "
4519 4519 "may need to reboot the system to bring "
4520 4520 "the root hub back to work if it cannot "
4521 4521 "recover automatically");
4522 4522 } else {
4523 4523 /*
4524 4524 * The driver would try to recover port power
4525 4525 * on over current condition. When the recovery
4526 4526 * fails, the user may still need to offline
4527 4527 * this hub in order to recover.
4528 4528 * The port power is automatically disabled,
4529 4529 * so we won't see disconnects.
4530 4530 */
4531 4531 USB_DPRINTF_L0(DPRINT_MASK_HOTPLUG,
4532 4532 hubd->h_log_handle,
4533 4533 "Hub global over current condition, "
4534 4534 "please disconnect the devices connected "
4535 4535 "to the hub to clear the condition. And "
4536 4536 "you may need to re-connect the hub if "
4537 4537 "the ports do not work");
4538 4538 }
4539 4539 }
4540 4540
4541 4541 USB_DPRINTF_L3(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
4542 4542 "clearing feature C_HUB_OVER_CURRENT");
4543 4543
4544 4544 if ((rval = usb_pipe_sync_ctrl_xfer(hubd->h_dip,
4545 4545 hubd->h_default_pipe,
4546 4546 HUB_HANDLE_HUB_FEATURE_TYPE,
4547 4547 USB_REQ_CLEAR_FEATURE,
4548 4548 CFS_C_HUB_OVER_CURRENT,
4549 4549 0,
4550 4550 0,
4551 4551 NULL, 0,
4552 4552 &completion_reason, &cb_flags, 0)) != USB_SUCCESS) {
4553 4553 USB_DPRINTF_L2(DPRINT_MASK_HOTPLUG,
4554 4554 hubd->h_log_handle,
4555 4555 "clear feature C_HUB_OVER_CURRENT "
4556 4556 "failed (%d 0x%x %d)",
4557 4557 rval, completion_reason, cb_flags);
4558 4558 }
4559 4559
4560 4560 /*
4561 4561 * Try to recover all port power if they are turned off.
4562 4562 * Don't do this for root hub, but rely on the root hub
4563 4563 * to recover itself.
4564 4564 */
4565 4565 if (!usba_is_root_hub(hubd->h_dip)) {
4566 4566
4567 4567 mutex_enter(HUBD_MUTEX(hubd));
4568 4568
4569 4569 /*
4570 4570 * Only check the power status of the 1st port
4571 4571 * since all port power status should be the same.
4572 4572 */
4573 4573 (void) hubd_determine_port_status(hubd, 1, &status,
4574 4574 &change, 0);
4575 4575
4576 4576 if (status & PORT_STATUS_PPS) {
4577 4577
4578 4578 return (USB_SUCCESS);
4579 4579 }
4580 4580
4581 4581 hub_descr = &hubd->h_hub_descr;
4582 4582
4583 4583 for (port = 1; port <= hub_descr->bNbrPorts;
4584 4584 port++) {
4585 4585
4586 4586 (void) hubd_enable_port_power(hubd, port);
4587 4587 }
4588 4588
4589 4589 mutex_exit(HUBD_MUTEX(hubd));
4590 4590
4591 4591 /*
4592 4592 * Delay some time to avoid over-current event
4593 4593 * to happen too frequently in some cases
4594 4594 */
4595 4595 delay(drv_usectohz(500000));
4596 4596 }
4597 4597 }
4598 4598
4599 4599 mutex_enter(HUBD_MUTEX(hubd));
4600 4600
4601 4601 return (USB_SUCCESS);
4602 4602 }
4603 4603
4604 4604
4605 4605 /*
4606 4606 * hubd_reset_port:
4607 4607 */
4608 4608 static int
4609 4609 hubd_reset_port(hubd_t *hubd, usb_port_t port)
4610 4610 {
4611 4611 int rval;
4612 4612 usb_cr_t completion_reason;
4613 4613 usb_cb_flags_t cb_flags;
4614 4614 usb_port_mask_t port_mask = 1 << port;
4615 4615 mblk_t *data;
4616 4616 uint16_t status;
4617 4617 uint16_t change;
4618 4618 int i;
4619 4619 clock_t delta;
4620 4620
4621 4621 USB_DPRINTF_L4(DPRINT_MASK_PORT, hubd->h_log_handle,
4622 4622 "hubd_reset_port: port=%d", port);
4623 4623
4624 4624 ASSERT(mutex_owned(HUBD_MUTEX(hubd)));
4625 4625
4626 4626 hubd->h_port_reset_wait |= port_mask;
4627 4627
4628 4628 mutex_exit(HUBD_MUTEX(hubd));
4629 4629
4630 4630 if ((rval = usb_pipe_sync_ctrl_xfer(hubd->h_dip,
4631 4631 hubd->h_default_pipe,
4632 4632 HUB_HANDLE_PORT_FEATURE_TYPE,
4633 4633 USB_REQ_SET_FEATURE,
4634 4634 CFS_PORT_RESET,
4635 4635 port,
4636 4636 0,
4637 4637 NULL, 0,
4638 4638 &completion_reason, &cb_flags, 0)) != USB_SUCCESS) {
4639 4639 USB_DPRINTF_L2(DPRINT_MASK_PORT, hubd->h_log_handle,
4640 4640 "reset port%d failed (%d 0x%x %d)",
4641 4641 port, completion_reason, cb_flags, rval);
4642 4642
4643 4643 mutex_enter(HUBD_MUTEX(hubd));
4644 4644
4645 4645 return (USB_FAILURE);
4646 4646 }
4647 4647
4648 4648 mutex_enter(HUBD_MUTEX(hubd));
4649 4649
4650 4650 USB_DPRINTF_L4(DPRINT_MASK_PORT, hubd->h_log_handle,
4651 4651 "waiting on cv for reset completion");
4652 4652
4653 4653 /*
4654 4654 * wait for port status change event
4655 4655 */
4656 4656 delta = drv_usectohz(hubd_device_delay / 10);
4657 4657 for (i = 0; i < hubd_retry_enumerate; i++) {
4658 4658 /*
4659 4659 * start polling ep1 for receiving notification on
4660 4660 * reset completion
4661 4661 */
4662 4662 hubd_start_polling(hubd, HUBD_ALWAYS_START_POLLING);
4663 4663
4664 4664 /*
4665 4665 * sleep a max of 100ms for reset completion
4666 4666 * notification to be received
4667 4667 */
4668 4668 if (hubd->h_port_reset_wait & port_mask) {
4669 4669 rval = cv_reltimedwait(&hubd->h_cv_reset_port,
4670 4670 &hubd->h_mutex, delta, TR_CLOCK_TICK);
4671 4671 if ((rval <= 0) &&
4672 4672 (hubd->h_port_reset_wait & port_mask)) {
4673 4673 /* we got woken up because of a timeout */
4674 4674 USB_DPRINTF_L2(DPRINT_MASK_PORT,
4675 4675 hubd->h_log_handle,
4676 4676 "timeout: reset port=%d failed", port);
4677 4677
4678 4678 hubd->h_port_reset_wait &= ~port_mask;
4679 4679
4680 4680 hubd_stop_polling(hubd);
4681 4681
4682 4682 return (USB_FAILURE);
4683 4683 }
4684 4684 }
4685 4685
4686 4686 USB_DPRINTF_L4(DPRINT_MASK_PORT, hubd->h_log_handle,
4687 4687 "reset completion received");
4688 4688
4689 4689 hubd_stop_polling(hubd);
4690 4690
4691 4691 data = NULL;
4692 4692
4693 4693 /* check status to determine whether reset completed */
4694 4694 mutex_exit(HUBD_MUTEX(hubd));
4695 4695 if ((rval = usb_pipe_sync_ctrl_xfer(hubd->h_dip,
4696 4696 hubd->h_default_pipe,
4697 4697 HUB_GET_PORT_STATUS_TYPE,
4698 4698 USB_REQ_GET_STATUS,
4699 4699 0,
4700 4700 port,
4701 4701 GET_STATUS_LENGTH,
4702 4702 &data, 0,
4703 4703 &completion_reason, &cb_flags, 0)) != USB_SUCCESS) {
4704 4704 USB_DPRINTF_L2(DPRINT_MASK_PORT,
4705 4705 hubd->h_log_handle,
4706 4706 "get status port%d failed (%d 0x%x %d)",
4707 4707 port, completion_reason, cb_flags, rval);
4708 4708
4709 4709 if (data) {
4710 4710 freemsg(data);
4711 4711 data = NULL;
4712 4712 }
4713 4713 mutex_enter(HUBD_MUTEX(hubd));
4714 4714
4715 4715 continue;
4716 4716 }
4717 4717
4718 4718 status = (*(data->b_rptr + 1) << 8) | *(data->b_rptr);
4719 4719 change = (*(data->b_rptr + 3) << 8) | *(data->b_rptr + 2);
4720 4720
4721 4721 freemsg(data);
4722 4722
4723 4723 /* continue only if port is still connected */
4724 4724 if (!(status & PORT_STATUS_CCS)) {
4725 4725
4726 4726 /* lost connection, set exit condition */
4727 4727 i = hubd_retry_enumerate;
4728 4728
4729 4729 mutex_enter(HUBD_MUTEX(hubd));
4730 4730
4731 4731 break;
4732 4732 }
4733 4733
4734 4734 if (status & PORT_STATUS_PRS) {
4735 4735 USB_DPRINTF_L3(DPRINT_MASK_PORT, hubd->h_log_handle,
4736 4736 "port%d reset active", port);
4737 4737 mutex_enter(HUBD_MUTEX(hubd));
4738 4738
4739 4739 continue;
4740 4740 } else {
4741 4741 USB_DPRINTF_L3(DPRINT_MASK_PORT, hubd->h_log_handle,
4742 4742 "port%d reset inactive", port);
4743 4743 }
4744 4744
4745 4745 if (change & PORT_CHANGE_PRSC) {
4746 4746 USB_DPRINTF_L3(DPRINT_MASK_PORT, hubd->h_log_handle,
4747 4747 "clearing feature CFS_C_PORT_RESET");
4748 4748
4749 4749 if (usb_pipe_sync_ctrl_xfer(hubd->h_dip,
4750 4750 hubd->h_default_pipe,
4751 4751 HUB_HANDLE_PORT_FEATURE_TYPE,
4752 4752 USB_REQ_CLEAR_FEATURE,
4753 4753 CFS_C_PORT_RESET,
4754 4754 port,
4755 4755 0,
4756 4756 NULL, 0,
4757 4757 &completion_reason, &cb_flags, 0) != USB_SUCCESS) {
4758 4758 USB_DPRINTF_L2(DPRINT_MASK_PORT,
4759 4759 hubd->h_log_handle,
4760 4760 "clear feature CFS_C_PORT_RESET"
4761 4761 " port%d failed (%d 0x%x %d)",
4762 4762 port, completion_reason, cb_flags, rval);
4763 4763 }
4764 4764 }
4765 4765 mutex_enter(HUBD_MUTEX(hubd));
4766 4766
4767 4767 break;
4768 4768 }
4769 4769
4770 4770 if (i >= hubd_retry_enumerate) {
4771 4771 /* port reset has failed */
4772 4772 rval = USB_FAILURE;
4773 4773 }
4774 4774
4775 4775 return (rval);
4776 4776 }
4777 4777
4778 4778
4779 4779 /*
4780 4780 * hubd_enable_port:
4781 4781 * this may fail if the hub as been disconnected
4782 4782 */
4783 4783 static int
4784 4784 hubd_enable_port(hubd_t *hubd, usb_port_t port)
4785 4785 {
4786 4786 int rval;
4787 4787 usb_cr_t completion_reason;
4788 4788 usb_cb_flags_t cb_flags;
4789 4789
4790 4790 USB_DPRINTF_L4(DPRINT_MASK_PORT, hubd->h_log_handle,
4791 4791 "hubd_enable_port: port=%d", port);
4792 4792
4793 4793 ASSERT(mutex_owned(HUBD_MUTEX(hubd)));
4794 4794
4795 4795 mutex_exit(HUBD_MUTEX(hubd));
4796 4796
4797 4797 /* Do not issue a SetFeature(PORT_ENABLE) on external hubs */
4798 4798 if (!usba_is_root_hub(hubd->h_dip)) {
4799 4799 mutex_enter(HUBD_MUTEX(hubd));
4800 4800
4801 4801 return (USB_SUCCESS);
4802 4802 }
4803 4803
4804 4804 if ((rval = usb_pipe_sync_ctrl_xfer(hubd->h_dip,
4805 4805 hubd->h_default_pipe,
4806 4806 HUB_HANDLE_PORT_FEATURE_TYPE,
4807 4807 USB_REQ_SET_FEATURE,
4808 4808 CFS_PORT_ENABLE,
4809 4809 port,
4810 4810 0,
4811 4811 NULL, 0,
4812 4812 &completion_reason, &cb_flags, 0)) != USB_SUCCESS) {
4813 4813 USB_DPRINTF_L2(DPRINT_MASK_PORT, hubd->h_log_handle,
4814 4814 "enable port%d failed (%d 0x%x %d)",
4815 4815 port, completion_reason, cb_flags, rval);
4816 4816 }
4817 4817
4818 4818 mutex_enter(HUBD_MUTEX(hubd));
4819 4819
4820 4820 USB_DPRINTF_L4(DPRINT_MASK_PORT, hubd->h_log_handle,
4821 4821 "enabling port done");
4822 4822
4823 4823 return (rval);
4824 4824 }
4825 4825
4826 4826
4827 4827 /*
4828 4828 * hubd_disable_port
4829 4829 */
4830 4830 static int
4831 4831 hubd_disable_port(hubd_t *hubd, usb_port_t port)
4832 4832 {
4833 4833 int rval;
4834 4834 usb_cr_t completion_reason;
4835 4835 usb_cb_flags_t cb_flags;
4836 4836
4837 4837 USB_DPRINTF_L4(DPRINT_MASK_PORT, hubd->h_log_handle,
4838 4838 "hubd_disable_port: port=%d", port);
4839 4839
4840 4840 ASSERT(mutex_owned(HUBD_MUTEX(hubd)));
4841 4841
4842 4842 mutex_exit(HUBD_MUTEX(hubd));
4843 4843
4844 4844 if ((rval = usb_pipe_sync_ctrl_xfer(hubd->h_dip,
4845 4845 hubd->h_default_pipe,
4846 4846 HUB_HANDLE_PORT_FEATURE_TYPE,
4847 4847 USB_REQ_CLEAR_FEATURE,
4848 4848 CFS_PORT_ENABLE,
4849 4849 port,
4850 4850 0,
4851 4851 NULL, 0,
4852 4852 &completion_reason, &cb_flags, 0)) != USB_SUCCESS) {
4853 4853 USB_DPRINTF_L2(DPRINT_MASK_PORT, hubd->h_log_handle,
4854 4854 "disable port%d failed (%d 0x%x %d)", port,
4855 4855 completion_reason, cb_flags, rval);
4856 4856 mutex_enter(HUBD_MUTEX(hubd));
4857 4857
4858 4858 return (USB_FAILURE);
4859 4859 }
4860 4860
4861 4861 USB_DPRINTF_L3(DPRINT_MASK_PORT, hubd->h_log_handle,
4862 4862 "clearing feature CFS_C_PORT_ENABLE");
4863 4863
4864 4864 if ((rval = usb_pipe_sync_ctrl_xfer(hubd->h_dip,
4865 4865 hubd->h_default_pipe,
4866 4866 HUB_HANDLE_PORT_FEATURE_TYPE,
4867 4867 USB_REQ_CLEAR_FEATURE,
4868 4868 CFS_C_PORT_ENABLE,
4869 4869 port,
4870 4870 0,
4871 4871 NULL, 0,
4872 4872 &completion_reason, &cb_flags, 0)) != USB_SUCCESS) {
4873 4873 USB_DPRINTF_L2(DPRINT_MASK_PORT,
4874 4874 hubd->h_log_handle,
4875 4875 "clear feature CFS_C_PORT_ENABLE port%d failed "
4876 4876 "(%d 0x%x %d)",
4877 4877 port, completion_reason, cb_flags, rval);
4878 4878
4879 4879 mutex_enter(HUBD_MUTEX(hubd));
4880 4880
4881 4881 return (USB_FAILURE);
4882 4882 }
4883 4883
4884 4884 mutex_enter(HUBD_MUTEX(hubd));
4885 4885
4886 4886 return (USB_SUCCESS);
4887 4887 }
4888 4888
4889 4889
4890 4890 /*
4891 4891 * hubd_determine_port_status:
4892 4892 */
4893 4893 static int
4894 4894 hubd_determine_port_status(hubd_t *hubd, usb_port_t port,
4895 4895 uint16_t *status, uint16_t *change, uint_t ack_flag)
4896 4896 {
4897 4897 int rval;
4898 4898 mblk_t *data = NULL;
4899 4899 usb_cr_t completion_reason;
4900 4900 usb_cb_flags_t cb_flags;
4901 4901
4902 4902 USB_DPRINTF_L4(DPRINT_MASK_PORT, hubd->h_log_handle,
4903 4903 "hubd_determine_port_status: port=%d, state=0x%x ack=0x%x", port,
4904 4904 hubd->h_port_state[port], ack_flag);
4905 4905
4906 4906 ASSERT(mutex_owned(HUBD_MUTEX(hubd)));
4907 4907
4908 4908 mutex_exit(HUBD_MUTEX(hubd));
4909 4909
4910 4910 if ((rval = usb_pipe_sync_ctrl_xfer(hubd->h_dip,
4911 4911 hubd->h_default_pipe,
4912 4912 HUB_GET_PORT_STATUS_TYPE,
4913 4913 USB_REQ_GET_STATUS,
4914 4914 0,
4915 4915 port,
4916 4916 GET_STATUS_LENGTH,
4917 4917 &data, 0,
4918 4918 &completion_reason, &cb_flags, 0)) != USB_SUCCESS) {
4919 4919 USB_DPRINTF_L2(DPRINT_MASK_PORT, hubd->h_log_handle,
4920 4920 "port=%d get status failed (%d 0x%x %d)",
4921 4921 port, completion_reason, cb_flags, rval);
4922 4922
4923 4923 if (data) {
4924 4924 freemsg(data);
4925 4925 }
4926 4926
4927 4927 *status = *change = 0;
4928 4928 mutex_enter(HUBD_MUTEX(hubd));
4929 4929
4930 4930 return (rval);
4931 4931 }
4932 4932
4933 4933 mutex_enter(HUBD_MUTEX(hubd));
4934 4934 if (MBLKL(data) != GET_STATUS_LENGTH) {
4935 4935 USB_DPRINTF_L2(DPRINT_MASK_PORT, hubd->h_log_handle,
4936 4936 "port %d: length incorrect %ld",
4937 4937 port, MBLKL(data));
4938 4938 freemsg(data);
4939 4939 *status = *change = 0;
4940 4940
4941 4941 return (rval);
4942 4942 }
4943 4943
4944 4944
4945 4945 *status = (*(data->b_rptr + 1) << 8) | *(data->b_rptr);
4946 4946 *change = (*(data->b_rptr + 3) << 8) | *(data->b_rptr + 2);
4947 4947
4948 4948 USB_DPRINTF_L3(DPRINT_MASK_PORT, hubd->h_log_handle,
4949 4949 "port%d status=0x%x, change=0x%x", port, *status, *change);
4950 4950
4951 4951 freemsg(data);
4952 4952
4953 4953 if (*status & PORT_STATUS_CCS) {
4954 4954 USB_DPRINTF_L3(DPRINT_MASK_PORT, hubd->h_log_handle,
4955 4955 "port%d connected", port);
4956 4956
4957 4957 hubd->h_port_state[port] |= (PORT_STATUS_CCS & ack_flag);
4958 4958 } else {
4959 4959 USB_DPRINTF_L3(DPRINT_MASK_PORT, hubd->h_log_handle,
4960 4960 "port%d disconnected", port);
4961 4961
4962 4962 hubd->h_port_state[port] &= ~(PORT_STATUS_CCS & ack_flag);
4963 4963 }
4964 4964
4965 4965 if (*status & PORT_STATUS_PES) {
4966 4966 USB_DPRINTF_L3(DPRINT_MASK_PORT, hubd->h_log_handle,
4967 4967 "port%d enabled", port);
4968 4968
4969 4969 hubd->h_port_state[port] |= (PORT_STATUS_PES & ack_flag);
4970 4970 } else {
4971 4971 USB_DPRINTF_L3(DPRINT_MASK_PORT, hubd->h_log_handle,
4972 4972 "port%d disabled", port);
4973 4973
4974 4974 hubd->h_port_state[port] &= ~(PORT_STATUS_PES & ack_flag);
4975 4975 }
4976 4976
4977 4977 if (*status & PORT_STATUS_PSS) {
4978 4978 USB_DPRINTF_L3(DPRINT_MASK_PORT, hubd->h_log_handle,
4979 4979 "port%d suspended", port);
4980 4980
4981 4981 hubd->h_port_state[port] |= (PORT_STATUS_PSS & ack_flag);
4982 4982 } else {
4983 4983 USB_DPRINTF_L3(DPRINT_MASK_PORT, hubd->h_log_handle,
4984 4984 "port%d not suspended", port);
4985 4985
4986 4986 hubd->h_port_state[port] &= ~(PORT_STATUS_PSS & ack_flag);
4987 4987 }
4988 4988
4989 4989 if (*change & PORT_CHANGE_PRSC) {
4990 4990 USB_DPRINTF_L3(DPRINT_MASK_PORT, hubd->h_log_handle,
4991 4991 "port%d reset completed", port);
4992 4992
4993 4993 hubd->h_port_state[port] |= (PORT_CHANGE_PRSC & ack_flag);
4994 4994 } else {
4995 4995
4996 4996 hubd->h_port_state[port] &= ~(PORT_CHANGE_PRSC & ack_flag);
4997 4997 }
4998 4998
4999 4999 if (*status & PORT_STATUS_POCI) {
5000 5000 USB_DPRINTF_L2(DPRINT_MASK_PORT, hubd->h_log_handle,
5001 5001 "port%d overcurrent!", port);
5002 5002
5003 5003 hubd->h_port_state[port] |= (PORT_STATUS_POCI & ack_flag);
5004 5004 } else {
5005 5005
5006 5006 hubd->h_port_state[port] &= ~(PORT_STATUS_POCI & ack_flag);
5007 5007 }
5008 5008
5009 5009 if (*status & PORT_STATUS_PRS) {
5010 5010 USB_DPRINTF_L3(DPRINT_MASK_PORT, hubd->h_log_handle,
5011 5011 "port%d reset active", port);
5012 5012
5013 5013 hubd->h_port_state[port] |= (PORT_STATUS_PRS & ack_flag);
5014 5014 } else {
5015 5015 USB_DPRINTF_L3(DPRINT_MASK_PORT, hubd->h_log_handle,
5016 5016 "port%d reset inactive", port);
5017 5017
5018 5018 hubd->h_port_state[port] &= ~(PORT_STATUS_PRS & ack_flag);
5019 5019 }
5020 5020 if (*status & PORT_STATUS_PPS) {
5021 5021 USB_DPRINTF_L3(DPRINT_MASK_PORT, hubd->h_log_handle,
5022 5022 "port%d power on", port);
5023 5023
5024 5024 hubd->h_port_state[port] |= (PORT_STATUS_PPS & ack_flag);
5025 5025 } else {
5026 5026 USB_DPRINTF_L3(DPRINT_MASK_PORT, hubd->h_log_handle,
5027 5027 "port%d power off", port);
5028 5028
5029 5029 hubd->h_port_state[port] &= ~(PORT_STATUS_PPS & ack_flag);
5030 5030 }
5031 5031 if (*status & PORT_STATUS_LSDA) {
5032 5032 USB_DPRINTF_L3(DPRINT_MASK_PORT, hubd->h_log_handle,
5033 5033 "port%d low speed", port);
5034 5034
5035 5035 hubd->h_port_state[port] |= (PORT_STATUS_LSDA & ack_flag);
5036 5036 } else {
5037 5037 hubd->h_port_state[port] &= ~(PORT_STATUS_LSDA & ack_flag);
5038 5038 if (*status & PORT_STATUS_HSDA) {
5039 5039 USB_DPRINTF_L3(DPRINT_MASK_PORT,
5040 5040 hubd->h_log_handle, "port%d "
5041 5041 "high speed", port);
5042 5042
5043 5043 hubd->h_port_state[port] |=
5044 5044 (PORT_STATUS_HSDA & ack_flag);
5045 5045 } else {
5046 5046 USB_DPRINTF_L3(DPRINT_MASK_PORT,
5047 5047 hubd->h_log_handle, "port%d "
5048 5048 "full speed", port);
5049 5049
5050 5050 hubd->h_port_state[port] &=
5051 5051 ~(PORT_STATUS_HSDA & ack_flag);
5052 5052 }
5053 5053 }
5054 5054
5055 5055 /*
5056 5056 * Acknowledge connection, enable, reset status
5057 5057 */
5058 5058 if (ack_flag) {
5059 5059 mutex_exit(HUBD_MUTEX(hubd));
5060 5060 if (*change & PORT_CHANGE_CSC & ack_flag) {
5061 5061 USB_DPRINTF_L3(DPRINT_MASK_PORT, hubd->h_log_handle,
5062 5062 "clearing feature CFS_C_PORT_CONNECTION");
5063 5063 if ((rval = usb_pipe_sync_ctrl_xfer(hubd->h_dip,
5064 5064 hubd->h_default_pipe,
5065 5065 HUB_HANDLE_PORT_FEATURE_TYPE,
5066 5066 USB_REQ_CLEAR_FEATURE,
5067 5067 CFS_C_PORT_CONNECTION,
5068 5068 port,
5069 5069 0, NULL, 0,
5070 5070 &completion_reason, &cb_flags, 0)) !=
5071 5071 USB_SUCCESS) {
5072 5072 USB_DPRINTF_L2(DPRINT_MASK_PORT,
5073 5073 hubd->h_log_handle,
5074 5074 "clear feature CFS_C_PORT_CONNECTION"
5075 5075 " port%d failed (%d 0x%x %d)",
5076 5076 port, completion_reason, cb_flags, rval);
5077 5077 }
5078 5078 }
5079 5079 if (*change & PORT_CHANGE_PESC & ack_flag) {
5080 5080 USB_DPRINTF_L3(DPRINT_MASK_PORT, hubd->h_log_handle,
5081 5081 "clearing feature CFS_C_PORT_ENABLE");
5082 5082 if ((rval = usb_pipe_sync_ctrl_xfer(hubd->h_dip,
5083 5083 hubd->h_default_pipe,
5084 5084 HUB_HANDLE_PORT_FEATURE_TYPE,
5085 5085 USB_REQ_CLEAR_FEATURE,
5086 5086 CFS_C_PORT_ENABLE,
5087 5087 port,
5088 5088 0, NULL, 0,
5089 5089 &completion_reason, &cb_flags, 0)) !=
5090 5090 USB_SUCCESS) {
5091 5091 USB_DPRINTF_L2(DPRINT_MASK_PORT,
5092 5092 hubd->h_log_handle,
5093 5093 "clear feature CFS_C_PORT_ENABLE"
5094 5094 " port%d failed (%d 0x%x %d)",
5095 5095 port, completion_reason, cb_flags, rval);
5096 5096 }
5097 5097 }
5098 5098 if (*change & PORT_CHANGE_PSSC & ack_flag) {
5099 5099 USB_DPRINTF_L3(DPRINT_MASK_PORT, hubd->h_log_handle,
5100 5100 "clearing feature CFS_C_PORT_SUSPEND");
5101 5101
5102 5102 if ((rval = usb_pipe_sync_ctrl_xfer(hubd->h_dip,
5103 5103 hubd->h_default_pipe,
5104 5104 HUB_HANDLE_PORT_FEATURE_TYPE,
5105 5105 USB_REQ_CLEAR_FEATURE,
5106 5106 CFS_C_PORT_SUSPEND,
5107 5107 port,
5108 5108 0, NULL, 0,
5109 5109 &completion_reason, &cb_flags, 0)) !=
5110 5110 USB_SUCCESS) {
5111 5111 USB_DPRINTF_L2(DPRINT_MASK_PORT,
5112 5112 hubd->h_log_handle,
5113 5113 "clear feature CFS_C_PORT_SUSPEND"
5114 5114 " port%d failed (%d 0x%x %d)",
5115 5115 port, completion_reason, cb_flags, rval);
5116 5116 }
5117 5117 }
5118 5118 if (*change & PORT_CHANGE_OCIC & ack_flag) {
5119 5119 USB_DPRINTF_L3(DPRINT_MASK_PORT, hubd->h_log_handle,
5120 5120 "clearing feature CFS_C_PORT_OVER_CURRENT");
5121 5121
5122 5122 if ((rval = usb_pipe_sync_ctrl_xfer(hubd->h_dip,
5123 5123 hubd->h_default_pipe,
5124 5124 HUB_HANDLE_PORT_FEATURE_TYPE,
5125 5125 USB_REQ_CLEAR_FEATURE,
5126 5126 CFS_C_PORT_OVER_CURRENT,
5127 5127 port,
5128 5128 0, NULL, 0,
5129 5129 &completion_reason, &cb_flags, 0)) !=
5130 5130 USB_SUCCESS) {
5131 5131 USB_DPRINTF_L2(DPRINT_MASK_PORT,
5132 5132 hubd->h_log_handle,
5133 5133 "clear feature CFS_C_PORT_OVER_CURRENT"
5134 5134 " port%d failed (%d 0x%x %d)",
5135 5135 port, completion_reason, cb_flags, rval);
5136 5136 }
5137 5137 }
5138 5138 if (*change & PORT_CHANGE_PRSC & ack_flag) {
5139 5139 USB_DPRINTF_L3(DPRINT_MASK_PORT, hubd->h_log_handle,
5140 5140 "clearing feature CFS_C_PORT_RESET");
5141 5141 if ((rval = usb_pipe_sync_ctrl_xfer(hubd->h_dip,
5142 5142 hubd->h_default_pipe,
5143 5143 HUB_HANDLE_PORT_FEATURE_TYPE,
5144 5144 USB_REQ_CLEAR_FEATURE,
5145 5145 CFS_C_PORT_RESET,
5146 5146 port,
5147 5147 0, NULL, 0,
5148 5148 &completion_reason, &cb_flags, 0)) !=
5149 5149 USB_SUCCESS) {
5150 5150 USB_DPRINTF_L2(DPRINT_MASK_PORT,
5151 5151 hubd->h_log_handle,
5152 5152 "clear feature CFS_C_PORT_RESET"
5153 5153 " port%d failed (%d 0x%x %d)",
5154 5154 port, completion_reason, cb_flags, rval);
5155 5155 }
5156 5156 }
5157 5157 mutex_enter(HUBD_MUTEX(hubd));
5158 5158 }
5159 5159
5160 5160 USB_DPRINTF_L4(DPRINT_MASK_PORT, hubd->h_log_handle,
5161 5161 "new port%d state 0x%x", port, hubd->h_port_state[port]);
5162 5162
5163 5163
5164 5164 return (USB_SUCCESS);
5165 5165 }
5166 5166
5167 5167
5168 5168 /*
5169 5169 * hubd_recover_disabled_port
5170 5170 * if the port got disabled because of an error
5171 5171 * enable it. If hub doesn't suport enable port,
5172 5172 * reset the port to bring the device to life again
5173 5173 */
5174 5174 static int
5175 5175 hubd_recover_disabled_port(hubd_t *hubd, usb_port_t port)
5176 5176 {
5177 5177 uint16_t status;
5178 5178 uint16_t change;
5179 5179 int rval = USB_FAILURE;
5180 5180
5181 5181 /* first try enabling the port */
5182 5182 (void) hubd_enable_port(hubd, port);
5183 5183
5184 5184 /* read the port status */
5185 5185 (void) hubd_determine_port_status(hubd, port, &status, &change,
5186 5186 PORT_CHANGE_PESC);
5187 5187
5188 5188 if (status & PORT_STATUS_PES) {
5189 5189 USB_DPRINTF_L3(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
5190 5190 "Port%d now Enabled", port);
5191 5191 } else if (status & PORT_STATUS_CCS) {
5192 5192 /* first post a disconnect event to the child */
5193 5193 mutex_exit(HUBD_MUTEX(hubd));
5194 5194 hubd_post_event(hubd, port, USBA_EVENT_TAG_HOT_REMOVAL);
5195 5195 mutex_enter(HUBD_MUTEX(hubd));
5196 5196
5197 5197 /* then reset the port and recover the device */
5198 5198 rval = hubd_handle_port_connect(hubd, port);
5199 5199
5200 5200 USB_DPRINTF_L3(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
5201 5201 "Port%d now Enabled by force", port);
5202 5202 }
5203 5203
5204 5204 return (rval);
5205 5205 }
5206 5206
5207 5207
5208 5208 /*
5209 5209 * hubd_enable_all_port_power:
5210 5210 */
5211 5211 static int
5212 5212 hubd_enable_all_port_power(hubd_t *hubd)
5213 5213 {
5214 5214 usb_hub_descr_t *hub_descr;
5215 5215 int wait;
5216 5216 usb_port_t port;
5217 5217 uint_t retry;
5218 5218 uint16_t status;
5219 5219 uint16_t change;
5220 5220
5221 5221 USB_DPRINTF_L4(DPRINT_MASK_PORT, hubd->h_log_handle,
5222 5222 "hubd_enable_all_port_power");
5223 5223
5224 5224 ASSERT(mutex_owned(HUBD_MUTEX(hubd)));
5225 5225
5226 5226 hub_descr = &hubd->h_hub_descr;
5227 5227
5228 5228 /*
5229 5229 * According to section 11.11 of USB, for hubs with no power
5230 5230 * switches, bPwrOn2PwrGood is zero. But we wait for some
5231 5231 * arbitrary time to enable power to become stable.
5232 5232 *
5233 5233 * If an hub supports port power switching, we need to wait
5234 5234 * at least 20ms before accessing corresponding usb port.
5235 5235 */
5236 5236 if ((hub_descr->wHubCharacteristics &
5237 5237 HUB_CHARS_NO_POWER_SWITCHING) || (!hub_descr->bPwrOn2PwrGood)) {
5238 5238 wait = hubd_device_delay / 10;
5239 5239 } else {
5240 5240 wait = max(HUB_DEFAULT_POPG,
5241 5241 hub_descr->bPwrOn2PwrGood) * 2 * 1000;
5242 5242 }
5243 5243
5244 5244 USB_DPRINTF_L4(DPRINT_MASK_PORT, hubd->h_log_handle,
5245 5245 "hubd_enable_all_port_power: popg=%d wait=%d",
5246 5246 hub_descr->bPwrOn2PwrGood, wait);
5247 5247
5248 5248 /*
5249 5249 * Enable power per port. we ignore gang power and power mask
5250 5250 * and always enable all ports one by one.
5251 5251 */
5252 5252 for (port = 1; port <= hub_descr->bNbrPorts; port++) {
5253 5253 /*
5254 5254 * Transition the port from the Powered Off to the
5255 5255 * Disconnected state by supplying power to the port.
5256 5256 */
5257 5257 USB_DPRINTF_L4(DPRINT_MASK_PORT,
5258 5258 hubd->h_log_handle,
5259 5259 "hubd_enable_all_port_power: power port=%d", port);
5260 5260
5261 5261 (void) hubd_enable_port_power(hubd, port);
5262 5262 }
5263 5263
5264 5264 mutex_exit(HUBD_MUTEX(hubd));
5265 5265 delay(drv_usectohz(wait));
5266 5266 mutex_enter(HUBD_MUTEX(hubd));
5267 5267
5268 5268 /* For retry if any, use some extra delay */
5269 5269 wait = max(wait, hubd_device_delay / 10);
5270 5270
5271 5271 /* Check each port power status for a given usb hub */
5272 5272 for (port = 1; port <= hub_descr->bNbrPorts; port++) {
5273 5273
5274 5274 /* Get port status */
5275 5275 (void) hubd_determine_port_status(hubd, port,
5276 5276 &status, &change, 0);
5277 5277
5278 5278 for (retry = 0; ((!(status & PORT_STATUS_PPS)) &&
5279 5279 (retry < HUBD_PORT_RETRY)); retry++) {
5280 5280
5281 5281 USB_DPRINTF_L2(DPRINT_MASK_PORT, hubd->h_log_handle,
5282 5282 "Retry is in progress %d: port %d status %d",
5283 5283 retry, port, status);
5284 5284
5285 5285 (void) hubd_enable_port_power(hubd, port);
5286 5286
5287 5287 mutex_exit(HUBD_MUTEX(hubd));
5288 5288 delay(drv_usectohz(wait));
5289 5289 mutex_enter(HUBD_MUTEX(hubd));
5290 5290
5291 5291 /* Get port status */
5292 5292 (void) hubd_determine_port_status(hubd, port,
5293 5293 &status, &change, 0);
5294 5294 }
5295 5295
5296 5296 /* Print warning message if port has no power */
5297 5297 if (!(status & PORT_STATUS_PPS)) {
5298 5298
5299 5299 USB_DPRINTF_L2(DPRINT_MASK_PORT, hubd->h_log_handle,
5300 5300 "hubd_enable_all_port_power: port %d power-on "
5301 5301 "failed, port status 0x%x", port, status);
5302 5302 }
5303 5303 }
5304 5304
5305 5305 return (USB_SUCCESS);
5306 5306 }
5307 5307
5308 5308
5309 5309 /*
5310 5310 * hubd_enable_port_power:
5311 5311 * enable individual port power
5312 5312 */
5313 5313 static int
5314 5314 hubd_enable_port_power(hubd_t *hubd, usb_port_t port)
5315 5315 {
5316 5316 int rval;
5317 5317 usb_cr_t completion_reason;
5318 5318 usb_cb_flags_t cb_flags;
5319 5319
5320 5320 USB_DPRINTF_L4(DPRINT_MASK_PORT, hubd->h_log_handle,
5321 5321 "hubd_enable_port_power: port=%d", port);
5322 5322
5323 5323 ASSERT(mutex_owned(HUBD_MUTEX(hubd)));
5324 5324 ASSERT(hubd->h_default_pipe != 0);
5325 5325
5326 5326 mutex_exit(HUBD_MUTEX(hubd));
5327 5327
5328 5328 if ((rval = usb_pipe_sync_ctrl_xfer(hubd->h_dip,
5329 5329 hubd->h_default_pipe,
5330 5330 HUB_HANDLE_PORT_FEATURE_TYPE,
5331 5331 USB_REQ_SET_FEATURE,
5332 5332 CFS_PORT_POWER,
5333 5333 port,
5334 5334 0, NULL, 0,
5335 5335 &completion_reason, &cb_flags, 0)) != USB_SUCCESS) {
5336 5336 USB_DPRINTF_L2(DPRINT_MASK_PORT, hubd->h_log_handle,
5337 5337 "set port power failed (%d 0x%x %d)",
5338 5338 completion_reason, cb_flags, rval);
5339 5339 mutex_enter(HUBD_MUTEX(hubd));
5340 5340
5341 5341 return (USB_FAILURE);
5342 5342 } else {
5343 5343 mutex_enter(HUBD_MUTEX(hubd));
5344 5344 hubd->h_port_state[port] |= PORT_STATUS_PPS;
5345 5345
5346 5346 return (USB_SUCCESS);
5347 5347 }
5348 5348 }
5349 5349
5350 5350
5351 5351 /*
5352 5352 * hubd_disable_all_port_power:
5353 5353 */
5354 5354 static int
5355 5355 hubd_disable_all_port_power(hubd_t *hubd)
5356 5356 {
5357 5357 usb_port_t port;
5358 5358
5359 5359 USB_DPRINTF_L4(DPRINT_MASK_PORT, hubd->h_log_handle,
5360 5360 "hubd_disable_all_port_power");
5361 5361
5362 5362 ASSERT(mutex_owned(HUBD_MUTEX(hubd)));
5363 5363
5364 5364 /*
5365 5365 * disable power per port, ignore gang power and power mask
5366 5366 */
5367 5367 for (port = 1; port <= hubd->h_hub_descr.bNbrPorts; port++) {
5368 5368 (void) hubd_disable_port_power(hubd, port);
5369 5369 }
5370 5370
5371 5371 return (USB_SUCCESS);
5372 5372 }
5373 5373
5374 5374
5375 5375 /*
5376 5376 * hubd_disable_port_power:
5377 5377 * disable individual port power
5378 5378 */
5379 5379 static int
5380 5380 hubd_disable_port_power(hubd_t *hubd, usb_port_t port)
5381 5381 {
5382 5382 int rval;
5383 5383 usb_cr_t completion_reason;
5384 5384 usb_cb_flags_t cb_flags;
5385 5385
5386 5386 USB_DPRINTF_L4(DPRINT_MASK_PORT, hubd->h_log_handle,
5387 5387 "hubd_disable_port_power: port=%d", port);
5388 5388
5389 5389 ASSERT(mutex_owned(HUBD_MUTEX(hubd)));
5390 5390
5391 5391 mutex_exit(HUBD_MUTEX(hubd));
5392 5392
5393 5393 if ((rval = usb_pipe_sync_ctrl_xfer(hubd->h_dip,
5394 5394 hubd->h_default_pipe,
5395 5395 HUB_HANDLE_PORT_FEATURE_TYPE,
5396 5396 USB_REQ_CLEAR_FEATURE,
5397 5397 CFS_PORT_POWER,
5398 5398 port,
5399 5399 0, NULL, 0,
5400 5400 &completion_reason, &cb_flags, 0)) != USB_SUCCESS) {
5401 5401 USB_DPRINTF_L2(DPRINT_MASK_PORT, hubd->h_log_handle,
5402 5402 "clearing port%d power failed (%d 0x%x %d)",
5403 5403 port, completion_reason, cb_flags, rval);
5404 5404
5405 5405 mutex_enter(HUBD_MUTEX(hubd));
5406 5406
5407 5407 return (USB_FAILURE);
5408 5408 } else {
5409 5409
5410 5410 mutex_enter(HUBD_MUTEX(hubd));
5411 5411 ASSERT(completion_reason == 0);
5412 5412 hubd->h_port_state[port] &= ~PORT_STATUS_PPS;
5413 5413
5414 5414 return (USB_SUCCESS);
5415 5415 }
5416 5416 }
5417 5417
5418 5418
5419 5419 /*
5420 5420 * Search the database of user preferences and find out the preferred
5421 5421 * configuration for this new device
5422 5422 */
5423 5423 int
5424 5424 hubd_select_device_configuration(hubd_t *hubd, usb_port_t port,
5425 5425 dev_info_t *child_dip, usba_device_t *child_ud)
5426 5426 {
5427 5427 char *pathname = NULL;
5428 5428 char *tmp_path = NULL;
5429 5429 int user_conf;
5430 5430 int pathlen;
5431 5431 usb_dev_descr_t *usbdev_ptr;
5432 5432 usba_configrec_t *user_pref;
5433 5433
5434 5434 mutex_enter(&child_ud->usb_mutex);
5435 5435 usbdev_ptr = child_ud->usb_dev_descr;
5436 5436 mutex_exit(&child_ud->usb_mutex);
5437 5437
5438 5438 /* try to get pathname for this device */
5439 5439 tmp_path = kmem_zalloc(MAXPATHLEN, KM_SLEEP);
5440 5440 (void) ddi_pathname(child_dip, tmp_path);
5441 5441
5442 5442 pathlen = strlen(tmp_path) + 32;
5443 5443 pathname = kmem_zalloc(pathlen, KM_SLEEP);
5444 5444
5445 5445 /*
5446 5446 * We haven't initialized the node and it doesn't have an address
5447 5447 * yet. Append port number to the physical pathname
5448 5448 */
5449 5449 (void) sprintf(pathname, "%s@%d", tmp_path, port);
5450 5450
5451 5451 USB_DPRINTF_L3(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
5452 5452 "hubd_select_device_configuration: Device=%s\n\t"
5453 5453 "Child path=%s",
5454 5454 usba_get_mfg_prod_sn_str(child_dip, tmp_path, MAXPATHLEN),
5455 5455 pathname);
5456 5456 kmem_free(tmp_path, MAXPATHLEN);
5457 5457
5458 5458
5459 5459 /* database search for user preferences */
5460 5460 user_pref = usba_devdb_get_user_preferences(usbdev_ptr->idVendor,
5461 5461 usbdev_ptr->idProduct, child_ud->usb_serialno_str, pathname);
5462 5462
5463 5463 if (user_pref) {
5464 5464 USB_DPRINTF_L3(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
5465 5465 "hubd_select_device_configuration: "
5466 5466 "usba_devdb_get_user_preferences "
5467 5467 "return user_conf=%d\npreferred driver=%s path=%s",
5468 5468 user_pref->cfg_index, user_pref->driver,
5469 5469 user_pref->pathname);
5470 5470
5471 5471 user_conf = user_pref->cfg_index;
5472 5472
5473 5473 if (user_pref->driver) {
5474 5474 mutex_enter(&child_ud->usb_mutex);
5475 5475 child_ud->usb_preferred_driver = user_pref->driver;
5476 5476 mutex_exit(&child_ud->usb_mutex);
5477 5477 }
5478 5478 } else {
5479 5479 USB_DPRINTF_L2(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
5480 5480 "hubd_select_device_configuration: No match found");
5481 5481
5482 5482 /* select default configuration for this device */
5483 5483 user_conf = USBA_DEV_CONFIG_INDEX_UNDEFINED;
5484 5484 }
5485 5485 kmem_free(pathname, pathlen);
5486 5486
5487 5487 /* if the device has just one configuration, set default value */
5488 5488 if (usbdev_ptr->bNumConfigurations == 1) {
5489 5489 user_conf = USB_DEV_DEFAULT_CONFIG_INDEX;
5490 5490 }
5491 5491
5492 5492 return (user_conf);
5493 5493 }
5494 5494
5495 5495
5496 5496 /*
5497 5497 * Retrieves config cloud for this configuration
5498 5498 */
5499 5499 int
5500 5500 hubd_get_this_config_cloud(hubd_t *hubd, dev_info_t *dip,
5501 5501 usba_device_t *child_ud, uint16_t conf_index)
5502 5502 {
5503 5503 usb_cfg_descr_t *confdescr;
5504 5504 mblk_t *pdata = NULL;
5505 5505 int rval;
5506 5506 size_t size;
5507 5507 char *tmpbuf;
5508 5508 usb_cr_t completion_reason;
5509 5509 usb_cb_flags_t cb_flags;
5510 5510 usb_pipe_handle_t def_ph;
5511 5511
5512 5512 USB_DPRINTF_L4(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
5513 5513 "hubd_get_this_config_cloud: conf_index=%d", conf_index);
5514 5514
5515 5515
5516 5516 /* alloc temporary space for config descriptor */
5517 5517 confdescr = (usb_cfg_descr_t *)kmem_zalloc(USB_CFG_DESCR_SIZE,
5518 5518 KM_SLEEP);
5519 5519
5520 5520 /* alloc temporary space for string descriptor */
5521 5521 tmpbuf = kmem_zalloc(USB_MAXSTRINGLEN, KM_SLEEP);
5522 5522
5523 5523 def_ph = usba_get_dflt_pipe_handle(dip);
5524 5524
5525 5525 if ((rval = usb_pipe_sync_ctrl_xfer(dip, def_ph,
5526 5526 USB_DEV_REQ_DEV_TO_HOST | USB_DEV_REQ_TYPE_STANDARD,
5527 5527 USB_REQ_GET_DESCR,
5528 5528 USB_DESCR_TYPE_SETUP_CFG | conf_index,
5529 5529 0,
5530 5530 USB_CFG_DESCR_SIZE,
5531 5531 &pdata,
5532 5532 0,
5533 5533 &completion_reason,
5534 5534 &cb_flags,
5535 5535 0)) == USB_SUCCESS) {
5536 5536
5537 5537 /* this must be true since we didn't allow data underruns */
5538 5538 if (MBLKL(pdata) != USB_CFG_DESCR_SIZE) {
5539 5539 USB_DPRINTF_L2(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
5540 5540 "device returned incorrect configuration "
5541 5541 "descriptor size.");
5542 5542
5543 5543 rval = USB_FAILURE;
5544 5544 goto done;
5545 5545 }
5546 5546
5547 5547 /*
5548 5548 * Parse the configuration descriptor
5549 5549 */
5550 5550 size = usb_parse_cfg_descr(pdata->b_rptr,
5551 5551 MBLKL(pdata), confdescr,
5552 5552 USB_CFG_DESCR_SIZE);
5553 5553
5554 5554 /* if parse cfg descr error, it should return failure */
5555 5555 if (size == USB_PARSE_ERROR) {
5556 5556
5557 5557 if (pdata->b_rptr[1] != USB_DESCR_TYPE_CFG) {
5558 5558 USB_DPRINTF_L2(DPRINT_MASK_HOTPLUG,
5559 5559 hubd->h_log_handle,
5560 5560 "device returned incorrect "
5561 5561 "configuration descriptor type.");
5562 5562 }
5563 5563 rval = USB_FAILURE;
5564 5564 goto done;
5565 5565 }
5566 5566
5567 5567 if (confdescr->wTotalLength < USB_CFG_DESCR_SIZE) {
5568 5568 USB_DPRINTF_L2(DPRINT_MASK_HOTPLUG,
5569 5569 hubd->h_log_handle,
5570 5570 "device returned incorrect "
5571 5571 "configuration descriptor size.");
5572 5572
5573 5573 rval = USB_FAILURE;
5574 5574 goto done;
5575 5575 }
5576 5576
5577 5577 freemsg(pdata);
5578 5578 pdata = NULL;
5579 5579
5580 5580 /* Now fetch the complete config cloud */
5581 5581 if ((rval = usb_pipe_sync_ctrl_xfer(dip, def_ph,
5582 5582 USB_DEV_REQ_DEV_TO_HOST | USB_DEV_REQ_TYPE_STANDARD,
5583 5583 USB_REQ_GET_DESCR,
5584 5584 USB_DESCR_TYPE_SETUP_CFG | conf_index,
5585 5585 0,
5586 5586 confdescr->wTotalLength,
5587 5587 &pdata,
5588 5588 0,
5589 5589 &completion_reason,
5590 5590 &cb_flags,
5591 5591 0)) == USB_SUCCESS) {
5592 5592
5593 5593 if (MBLKL(pdata) !=
5594 5594 confdescr->wTotalLength) {
5595 5595
5596 5596 USB_DPRINTF_L2(DPRINT_MASK_HOTPLUG,
5597 5597 hubd->h_log_handle,
5598 5598 "device returned incorrect "
5599 5599 "configuration descriptor.");
5600 5600
5601 5601 rval = USB_FAILURE;
5602 5602 goto done;
5603 5603 }
5604 5604
5605 5605 /*
5606 5606 * copy config descriptor into usba_device
5607 5607 */
5608 5608 mutex_enter(&child_ud->usb_mutex);
5609 5609 child_ud->usb_cfg_array[conf_index] =
5610 5610 kmem_alloc(confdescr->wTotalLength, KM_SLEEP);
5611 5611 child_ud->usb_cfg_array_len[conf_index] =
5612 5612 confdescr->wTotalLength;
5613 5613 bcopy((caddr_t)pdata->b_rptr,
5614 5614 (caddr_t)child_ud->usb_cfg_array[conf_index],
5615 5615 confdescr->wTotalLength);
5616 5616 mutex_exit(&child_ud->usb_mutex);
5617 5617
5618 5618 /*
5619 5619 * retrieve string descriptor describing this
5620 5620 * configuration
5621 5621 */
5622 5622 if (confdescr->iConfiguration) {
5623 5623
5624 5624 USB_DPRINTF_L3(DPRINT_MASK_HOTPLUG,
5625 5625 hubd->h_log_handle,
5626 5626 "Get conf str descr for config_index=%d",
5627 5627 conf_index);
5628 5628
5629 5629 /*
5630 5630 * Now fetch the string descriptor describing
5631 5631 * this configuration
5632 5632 */
5633 5633 if ((rval = usb_get_string_descr(dip,
5634 5634 USB_LANG_ID, confdescr->iConfiguration,
5635 5635 tmpbuf, USB_MAXSTRINGLEN)) ==
5636 5636 USB_SUCCESS) {
5637 5637 size = strlen(tmpbuf);
5638 5638 if (size > 0) {
5639 5639 child_ud->usb_cfg_str_descr
5640 5640 [conf_index] = (char *)
5641 5641 kmem_zalloc(size + 1,
5642 5642 KM_SLEEP);
5643 5643 (void) strcpy(
5644 5644 child_ud->usb_cfg_str_descr
5645 5645 [conf_index], tmpbuf);
5646 5646 }
5647 5647 } else {
5648 5648 USB_DPRINTF_L2(DPRINT_MASK_HOTPLUG,
5649 5649 hubd->h_log_handle,
5650 5650 "hubd_get_this_config_cloud: "
5651 5651 "getting config string (%d) "
5652 5652 "failed",
5653 5653 confdescr->iConfiguration);
5654 5654
5655 5655 /* ignore this error */
5656 5656 rval = USB_SUCCESS;
5657 5657 }
5658 5658 }
5659 5659 }
5660 5660 }
5661 5661
5662 5662 done:
5663 5663 if (rval != USB_SUCCESS) {
5664 5664 USB_DPRINTF_L2(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
5665 5665 "hubd_get_this_config_cloud: "
5666 5666 "error in retrieving config descriptor for "
5667 5667 "config index=%d rval=%d cr=%d",
5668 5668 conf_index, rval, completion_reason);
5669 5669 }
5670 5670
5671 5671 if (pdata) {
5672 5672 freemsg(pdata);
5673 5673 pdata = NULL;
5674 5674 }
5675 5675
5676 5676 kmem_free(confdescr, USB_CFG_DESCR_SIZE);
5677 5677 kmem_free(tmpbuf, USB_MAXSTRINGLEN);
5678 5678
5679 5679 return (rval);
5680 5680 }
5681 5681
5682 5682
5683 5683 /*
5684 5684 * Retrieves the entire config cloud for all configurations of the device
5685 5685 */
5686 5686 int
5687 5687 hubd_get_all_device_config_cloud(hubd_t *hubd, dev_info_t *dip,
5688 5688 usba_device_t *child_ud)
5689 5689 {
5690 5690 int rval = USB_SUCCESS;
5691 5691 int ncfgs;
5692 5692 uint16_t size;
5693 5693 uint16_t conf_index;
5694 5694 uchar_t **cfg_array;
5695 5695 uint16_t *cfg_array_len;
5696 5696 char **str_descr;
5697 5697
5698 5698 USB_DPRINTF_L4(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
5699 5699 "hubd_get_all_device_config_cloud: Start");
5700 5700
5701 5701 /* alloc pointer array for conf. descriptors */
5702 5702 mutex_enter(&child_ud->usb_mutex);
5703 5703 ncfgs = child_ud->usb_n_cfgs;
5704 5704 mutex_exit(&child_ud->usb_mutex);
5705 5705
5706 5706 size = sizeof (uchar_t *) * ncfgs;
5707 5707 cfg_array = kmem_zalloc(size, KM_SLEEP);
5708 5708 cfg_array_len = kmem_zalloc(ncfgs * sizeof (uint16_t), KM_SLEEP);
5709 5709 str_descr = kmem_zalloc(size, KM_SLEEP);
5710 5710
5711 5711 mutex_enter(&child_ud->usb_mutex);
5712 5712 child_ud->usb_cfg_array = cfg_array;
5713 5713 child_ud->usb_cfg_array_len = cfg_array_len;
5714 5714 child_ud->usb_cfg_array_length = size;
5715 5715 child_ud->usb_cfg_array_len_length = ncfgs * sizeof (uint16_t);
5716 5716 child_ud->usb_cfg_str_descr = str_descr;
5717 5717 mutex_exit(&child_ud->usb_mutex);
5718 5718
5719 5719 /* Get configuration descriptor for each configuration */
5720 5720 for (conf_index = 0; (conf_index < ncfgs) &&
5721 5721 (rval == USB_SUCCESS); conf_index++) {
5722 5722
5723 5723 rval = hubd_get_this_config_cloud(hubd, dip, child_ud,
5724 5724 conf_index);
5725 5725 }
5726 5726
5727 5727 return (rval);
5728 5728 }
5729 5729
5730 5730
5731 5731 /*
5732 5732 * hubd_ready_device:
5733 5733 * Update the usba_device structure
5734 5734 * Set the given configuration
5735 5735 * Prepares the device node for driver to online. If an existing
5736 5736 * OBP node is found, it will switch to the OBP node.
5737 5737 */
5738 5738 dev_info_t *
5739 5739 hubd_ready_device(hubd_t *hubd, dev_info_t *child_dip, usba_device_t *child_ud,
5740 5740 uint_t config_index)
5741 5741 {
5742 5742 usb_cr_t completion_reason;
5743 5743 usb_cb_flags_t cb_flags;
5744 5744 size_t size;
5745 5745 usb_cfg_descr_t config_descriptor;
5746 5746 usb_pipe_handle_t def_ph;
5747 5747 usba_pipe_handle_data_t *ph;
5748 5748
5749 5749 USB_DPRINTF_L4(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
5750 5750 "hubd_ready_device: dip=0x%p, user_conf_index=%d",
5751 5751 (void *)child_dip, config_index);
5752 5752
5753 5753 size = usb_parse_cfg_descr(
5754 5754 child_ud->usb_cfg_array[config_index], USB_CFG_DESCR_SIZE,
5755 5755 &config_descriptor, USB_CFG_DESCR_SIZE);
5756 5756 ASSERT(size == USB_CFG_DESCR_SIZE);
5757 5757
5758 5758 def_ph = usba_get_dflt_pipe_handle(child_dip);
5759 5759
5760 5760 /* Set the configuration */
5761 5761 (void) usb_pipe_sync_ctrl_xfer(child_dip, def_ph,
5762 5762 USB_DEV_REQ_HOST_TO_DEV,
5763 5763 USB_REQ_SET_CFG, /* bRequest */
5764 5764 config_descriptor.bConfigurationValue, /* wValue */
5765 5765 0, /* wIndex */
5766 5766 0, /* wLength */
5767 5767 NULL,
5768 5768 0,
5769 5769 &completion_reason,
5770 5770 &cb_flags,
5771 5771 0);
5772 5772
5773 5773 mutex_enter(&child_ud->usb_mutex);
5774 5774 child_ud->usb_active_cfg_ndx = config_index;
5775 5775 child_ud->usb_cfg = child_ud->usb_cfg_array[config_index];
5776 5776 child_ud->usb_cfg_length = config_descriptor.wTotalLength;
5777 5777 child_ud->usb_cfg_value = config_descriptor.bConfigurationValue;
5778 5778 child_ud->usb_n_ifs = config_descriptor.bNumInterfaces;
5779 5779 child_ud->usb_dip = child_dip;
5780 5780
5781 5781 child_ud->usb_client_flags = kmem_zalloc(
5782 5782 child_ud->usb_n_ifs * USBA_CLIENT_FLAG_SIZE, KM_SLEEP);
5783 5783
5784 5784 child_ud->usb_client_attach_list = kmem_zalloc(
5785 5785 child_ud->usb_n_ifs *
5786 5786 sizeof (*child_ud->usb_client_attach_list), KM_SLEEP);
5787 5787
5788 5788 child_ud->usb_client_ev_cb_list = kmem_zalloc(
5789 5789 child_ud->usb_n_ifs *
5790 5790 sizeof (*child_ud->usb_client_ev_cb_list), KM_SLEEP);
5791 5791
5792 5792 mutex_exit(&child_ud->usb_mutex);
5793 5793
5794 5794 /* ready the device node */
5795 5795 child_dip = usba_ready_device_node(child_dip);
5796 5796
5797 5797 /* set owner of default pipe to child dip */
5798 5798 ph = usba_get_ph_data(def_ph);
5799 5799 mutex_enter(&ph->p_mutex);
5800 5800 mutex_enter(&ph->p_ph_impl->usba_ph_mutex);
5801 5801 ph->p_ph_impl->usba_ph_dip = ph->p_dip = child_dip;
5802 5802 mutex_exit(&ph->p_ph_impl->usba_ph_mutex);
5803 5803 mutex_exit(&ph->p_mutex);
5804 5804
5805 5805 return (child_dip);
5806 5806 }
5807 5807
5808 5808
5809 5809 /*
5810 5810 * hubd_create_child
5811 5811 * - create child dip
5812 5812 * - open default pipe
5813 5813 * - get device descriptor
5814 5814 * - set the address
5815 5815 * - get device string descriptors
5816 5816 * - get the entire config cloud (all configurations) of the device
5817 5817 * - set user preferred configuration
5818 5818 * - close default pipe
5819 5819 * - load appropriate driver(s)
5820 5820 */
5821 5821 static int
5822 5822 hubd_create_child(dev_info_t *dip,
5823 5823 hubd_t *hubd,
5824 5824 usba_device_t *hubd_ud,
5825 5825 usb_port_status_t port_status,
5826 5826 usb_port_t port,
5827 5827 int iteration)
5828 5828 {
5829 5829 dev_info_t *child_dip = NULL;
5830 5830 usb_dev_descr_t usb_dev_descr;
5831 5831 int rval;
5832 5832 usba_device_t *child_ud = NULL;
5833 5833 usba_device_t *parent_ud = NULL;
5834 5834 usb_pipe_handle_t ph = NULL; /* default pipe handle */
5835 5835 mblk_t *pdata = NULL;
5836 5836 usb_cr_t completion_reason;
5837 5837 int user_conf_index;
5838 5838 uint_t config_index;
5839 5839 usb_cb_flags_t cb_flags;
5840 5840 uchar_t address = 0;
5841 5841 uint16_t length;
5842 5842 size_t size;
5843 5843 usb_addr_t parent_usb_addr;
5844 5844 usb_port_t parent_usb_port;
5845 5845 usba_device_t *parent_usba_dev;
5846 5846 usb_port_status_t parent_port_status;
5847 5847
5848 5848 USB_DPRINTF_L4(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
5849 5849 "hubd_create_child: port=%d", port);
5850 5850
5851 5851 ASSERT(mutex_owned(HUBD_MUTEX(hubd)));
5852 5852 ASSERT(hubd->h_usba_devices[port] == NULL);
5853 5853
5854 5854 mutex_exit(HUBD_MUTEX(hubd));
5855 5855
5856 5856 /*
5857 5857 * create a dip which can be used to open the pipe. we set
5858 5858 * the name after getting the descriptors from the device
5859 5859 */
5860 5860 rval = usba_create_child_devi(dip,
5861 5861 "device", /* driver name */
5862 5862 hubd_ud->usb_hcdi_ops, /* usba_hcdi ops */
5863 5863 hubd_ud->usb_root_hub_dip,
5864 5864 port_status, /* low speed device */
5865 5865 child_ud,
5866 5866 &child_dip);
5867 5867
5868 5868 if (rval != USB_SUCCESS) {
5869 5869
5870 5870 USB_DPRINTF_L2(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
5871 5871 "usb_create_child_devi failed (%d)", rval);
5872 5872
5873 5873 goto fail_cleanup;
5874 5874 }
5875 5875
5876 5876 child_ud = usba_get_usba_device(child_dip);
5877 5877 ASSERT(child_ud != NULL);
5878 5878
5879 5879 parent_ud = hubd->h_usba_device;
5880 5880 mutex_enter(&parent_ud->usb_mutex);
5881 5881 parent_port_status = parent_ud->usb_port_status;
5882 5882
5883 5883 /*
5884 5884 * To support split transactions, update address and port
5885 5885 * of high speed hub to which given device is connected.
5886 5886 */
5887 5887 if (parent_port_status == USBA_HIGH_SPEED_DEV) {
5888 5888 parent_usba_dev = parent_ud;
5889 5889 parent_usb_addr = parent_ud->usb_addr;
5890 5890 parent_usb_port = port;
5891 5891 } else {
5892 5892 parent_usba_dev = parent_ud->usb_hs_hub_usba_dev;
5893 5893 parent_usb_addr = parent_ud->usb_hs_hub_addr;
5894 5894 parent_usb_port = parent_ud->usb_hs_hub_port;
5895 5895 }
5896 5896 mutex_exit(&parent_ud->usb_mutex);
5897 5897
5898 5898 mutex_enter(&child_ud->usb_mutex);
5899 5899 address = child_ud->usb_addr;
5900 5900 child_ud->usb_addr = 0;
5901 5901 child_ud->usb_dev_descr = kmem_alloc(sizeof (usb_dev_descr_t),
5902 5902 KM_SLEEP);
5903 5903 bzero(&usb_dev_descr, sizeof (usb_dev_descr_t));
5904 5904 usb_dev_descr.bMaxPacketSize0 =
5905 5905 (port_status == USBA_LOW_SPEED_DEV) ? 8 : 64;
5906 5906 bcopy(&usb_dev_descr, child_ud->usb_dev_descr,
5907 5907 sizeof (usb_dev_descr_t));
5908 5908 child_ud->usb_port = port;
5909 5909 child_ud->usb_hs_hub_usba_dev = parent_usba_dev;
5910 5910 child_ud->usb_hs_hub_addr = parent_usb_addr;
5911 5911 child_ud->usb_hs_hub_port = parent_usb_port;
5912 5912 mutex_exit(&child_ud->usb_mutex);
5913 5913
5914 5914 /* Open the default pipe */
5915 5915 if ((rval = usb_pipe_open(child_dip, NULL, NULL,
5916 5916 USB_FLAGS_SLEEP | USBA_FLAGS_PRIVILEGED, &ph)) != USB_SUCCESS) {
5917 5917 USB_DPRINTF_L2(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
5918 5918 "usb_pipe_open failed (%d)", rval);
5919 5919
5920 5920 goto fail_cleanup;
5921 5921 }
5922 5922
5923 5923 /*
5924 5924 * get device descriptor
5925 5925 */
5926 5926 USB_DPRINTF_L4(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
5927 5927 "hubd_create_child: get device descriptor: 64 bytes");
5928 5928
5929 5929 rval = usb_pipe_sync_ctrl_xfer(child_dip, ph,
5930 5930 USB_DEV_REQ_DEV_TO_HOST | USB_DEV_REQ_TYPE_STANDARD,
5931 5931 USB_REQ_GET_DESCR, /* bRequest */
5932 5932 USB_DESCR_TYPE_SETUP_DEV, /* wValue */
5933 5933 0, /* wIndex */
5934 5934 64, /* wLength */
5935 5935 &pdata, USB_ATTRS_SHORT_XFER_OK,
5936 5936 &completion_reason, &cb_flags, 0);
5937 5937
5938 5938 if ((rval != USB_SUCCESS) &&
5939 5939 (!((completion_reason == USB_CR_DATA_OVERRUN) && pdata))) {
5940 5940
5941 5941 /*
5942 5942 * rval != USB_SUCCESS AND
5943 5943 * completion_reason != USB_CR_DATA_OVERRUN
5944 5944 * pdata could be != NULL.
5945 5945 * Free pdata now to prevent memory leak.
5946 5946 */
5947 5947 freemsg(pdata);
5948 5948 pdata = NULL;
5949 5949
5950 5950 USB_DPRINTF_L4(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
5951 5951 "hubd_create_child: get device descriptor: 8 bytes");
5952 5952
5953 5953 rval = usb_pipe_sync_ctrl_xfer(child_dip, ph,
5954 5954 USB_DEV_REQ_DEV_TO_HOST | USB_DEV_REQ_TYPE_STANDARD,
5955 5955 USB_REQ_GET_DESCR, /* bRequest */
5956 5956 USB_DESCR_TYPE_SETUP_DEV, /* wValue */
5957 5957 0, /* wIndex */
5958 5958 8, /* wLength */
5959 5959 &pdata, USB_ATTRS_NONE,
5960 5960 &completion_reason, &cb_flags, 0);
5961 5961
5962 5962 if (rval != USB_SUCCESS) {
5963 5963 USB_DPRINTF_L2(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
5964 5964 "getting device descriptor failed (%s 0x%x %d)",
5965 5965 usb_str_cr(completion_reason), cb_flags, rval);
5966 5966 goto fail_cleanup;
5967 5967 }
5968 5968 } else {
5969 5969 ASSERT(completion_reason == USB_CR_OK);
5970 5970 }
5971 5971
5972 5972 ASSERT(pdata != NULL);
5973 5973
5974 5974 size = usb_parse_dev_descr(
5975 5975 pdata->b_rptr,
5976 5976 MBLKL(pdata),
5977 5977 &usb_dev_descr,
5978 5978 sizeof (usb_dev_descr_t));
5979 5979
5980 5980 USB_DPRINTF_L4(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
5981 5981 "parsing device descriptor returned %lu", size);
5982 5982
5983 5983 length = *(pdata->b_rptr);
5984 5984 freemsg(pdata);
5985 5985 pdata = NULL;
5986 5986 if (size < 8) {
5987 5987 USB_DPRINTF_L2(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
5988 5988 "get device descriptor returned %lu bytes", size);
5989 5989
5990 5990 goto fail_cleanup;
5991 5991 }
5992 5992
5993 5993 if (length < 8) {
5994 5994 USB_DPRINTF_L2(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
5995 5995 "fail enumeration: bLength=%d", length);
5996 5996
5997 5997 goto fail_cleanup;
5998 5998 }
5999 5999
6000 6000 /* Set the address of the device */
6001 6001 if ((rval = usb_pipe_sync_ctrl_xfer(child_dip, ph,
6002 6002 USB_DEV_REQ_HOST_TO_DEV,
6003 6003 USB_REQ_SET_ADDRESS, /* bRequest */
6004 6004 address, /* wValue */
6005 6005 0, /* wIndex */
6006 6006 0, /* wLength */
6007 6007 NULL, 0,
6008 6008 &completion_reason, &cb_flags, 0)) != USB_SUCCESS) {
6009 6009 char buffer[64];
6010 6010 USB_DPRINTF_L2(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
6011 6011 "setting address failed (cr=%s cb_flags=%s rval=%d)",
6012 6012 usb_str_cr(completion_reason),
6013 6013 usb_str_cb_flags(cb_flags, buffer, sizeof (buffer)),
6014 6014 rval);
6015 6015
6016 6016 goto fail_cleanup;
6017 6017 }
6018 6018
6019 6019 USB_DPRINTF_L3(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
6020 6020 "set address 0x%x done", address);
6021 6021
6022 6022 /* now close the pipe for addr 0 */
6023 6023 usb_pipe_close(child_dip, ph,
6024 6024 USB_FLAGS_SLEEP | USBA_FLAGS_PRIVILEGED, NULL, NULL);
6025 6025
6026 6026 /*
6027 6027 * This delay is important for the CATC hub to enumerate
6028 6028 * But, avoid delay in the first iteration
6029 6029 */
6030 6030 if (iteration) {
6031 6031 delay(drv_usectohz(hubd_device_delay/100));
6032 6032 }
6033 6033
6034 6034 /* assign the address in the usba_device structure */
6035 6035 mutex_enter(&child_ud->usb_mutex);
6036 6036 child_ud->usb_addr = address;
6037 6037 child_ud->usb_no_cpr = 0;
6038 6038 child_ud->usb_port_status = port_status;
6039 6039 /* save this device descriptor */
6040 6040 bcopy(&usb_dev_descr, child_ud->usb_dev_descr,
6041 6041 sizeof (usb_dev_descr_t));
6042 6042 child_ud->usb_n_cfgs = usb_dev_descr.bNumConfigurations;
6043 6043 mutex_exit(&child_ud->usb_mutex);
6044 6044
6045 6045 /* re-open the pipe for the device with the new address */
6046 6046 if ((rval = usb_pipe_open(child_dip, NULL, NULL,
6047 6047 USB_FLAGS_SLEEP | USBA_FLAGS_PRIVILEGED, &ph)) != USB_SUCCESS) {
6048 6048 USB_DPRINTF_L2(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
6049 6049 "usb_pipe_open failed (%d)", rval);
6050 6050
6051 6051 goto fail_cleanup;
6052 6052 }
6053 6053
6054 6054 /*
6055 6055 * Get full device descriptor only if we have not received full
6056 6056 * device descriptor earlier.
6057 6057 */
6058 6058 if (size < length) {
6059 6059 USB_DPRINTF_L3(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
6060 6060 "hubd_create_child: get full device descriptor: "
6061 6061 "%d bytes", length);
6062 6062
6063 6063 if ((rval = usb_pipe_sync_ctrl_xfer(child_dip, ph,
6064 6064 USB_DEV_REQ_DEV_TO_HOST | USB_DEV_REQ_TYPE_STANDARD,
6065 6065 USB_REQ_GET_DESCR, /* bRequest */
6066 6066 USB_DESCR_TYPE_SETUP_DEV, /* wValue */
6067 6067 0, /* wIndex */
6068 6068 length, /* wLength */
6069 6069 &pdata, 0,
6070 6070 &completion_reason, &cb_flags, 0)) != USB_SUCCESS) {
6071 6071 freemsg(pdata);
6072 6072 pdata = NULL;
6073 6073
6074 6074 USB_DPRINTF_L3(DPRINT_MASK_HOTPLUG,
6075 6075 hubd->h_log_handle,
6076 6076 "hubd_create_child: get full device descriptor: "
6077 6077 "64 bytes");
6078 6078
6079 6079 rval = usb_pipe_sync_ctrl_xfer(child_dip, ph,
6080 6080 USB_DEV_REQ_DEV_TO_HOST |
6081 6081 USB_DEV_REQ_TYPE_STANDARD,
6082 6082 USB_REQ_GET_DESCR, /* bRequest */
6083 6083 USB_DESCR_TYPE_SETUP_DEV, /* wValue */
6084 6084 0, /* wIndex */
6085 6085 64, /* wLength */
6086 6086 &pdata, USB_ATTRS_SHORT_XFER_OK,
6087 6087 &completion_reason, &cb_flags, 0);
6088 6088
6089 6089 /* we have to trust the data now */
6090 6090 if (pdata) {
6091 6091 int len = *(pdata->b_rptr);
6092 6092
6093 6093 length = MBLKL(pdata);
6094 6094 if (length < len) {
6095 6095
6096 6096 goto fail_cleanup;
6097 6097 }
6098 6098 } else if (rval != USB_SUCCESS) {
6099 6099 USB_DPRINTF_L2(DPRINT_MASK_HOTPLUG,
6100 6100 hubd->h_log_handle,
6101 6101 "getting device descriptor failed "
6102 6102 "(%d 0x%x %d)",
6103 6103 completion_reason, cb_flags, rval);
6104 6104
6105 6105 goto fail_cleanup;
6106 6106 }
6107 6107 }
6108 6108
6109 6109 size = usb_parse_dev_descr(
6110 6110 pdata->b_rptr,
6111 6111 MBLKL(pdata),
6112 6112 &usb_dev_descr,
6113 6113 sizeof (usb_dev_descr_t));
6114 6114
6115 6115 USB_DPRINTF_L4(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
6116 6116 "parsing device descriptor returned %lu", size);
6117 6117
6118 6118 /*
6119 6119 * For now, free the data
6120 6120 * eventually, each configuration may need to be looked at
6121 6121 */
6122 6122 freemsg(pdata);
6123 6123 pdata = NULL;
6124 6124
6125 6125 if (size != USB_DEV_DESCR_SIZE) {
6126 6126 USB_DPRINTF_L2(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
6127 6127 "fail enumeration: descriptor size=%lu "
6128 6128 "expected size=%u", size, USB_DEV_DESCR_SIZE);
6129 6129
6130 6130 goto fail_cleanup;
6131 6131 }
6132 6132
6133 6133 /*
6134 6134 * save the device descriptor in usba_device since it is needed
6135 6135 * later on again
6136 6136 */
6137 6137 mutex_enter(&child_ud->usb_mutex);
6138 6138 bcopy(&usb_dev_descr, child_ud->usb_dev_descr,
6139 6139 sizeof (usb_dev_descr_t));
6140 6140 child_ud->usb_n_cfgs = usb_dev_descr.bNumConfigurations;
6141 6141 mutex_exit(&child_ud->usb_mutex);
6142 6142 }
6143 6143
6144 6144 if (usb_dev_descr.bNumConfigurations == 0) {
6145 6145 USB_DPRINTF_L2(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
6146 6146 "device descriptor:\n\t"
6147 6147 "l=0x%x type=0x%x USB=0x%x class=0x%x subclass=0x%x\n\t"
6148 6148 "protocol=0x%x maxpktsize=0x%x "
6149 6149 "Vid=0x%x Pid=0x%x rel=0x%x\n\t"
6150 6150 "Mfg=0x%x P=0x%x sn=0x%x #config=0x%x",
6151 6151 usb_dev_descr.bLength, usb_dev_descr.bDescriptorType,
6152 6152 usb_dev_descr.bcdUSB, usb_dev_descr.bDeviceClass,
6153 6153 usb_dev_descr.bDeviceSubClass,
6154 6154 usb_dev_descr.bDeviceProtocol,
6155 6155 usb_dev_descr.bMaxPacketSize0,
6156 6156 usb_dev_descr.idVendor,
6157 6157 usb_dev_descr.idProduct, usb_dev_descr.bcdDevice,
6158 6158 usb_dev_descr.iManufacturer, usb_dev_descr.iProduct,
6159 6159 usb_dev_descr.iSerialNumber,
6160 6160 usb_dev_descr.bNumConfigurations);
6161 6161 goto fail_cleanup;
6162 6162 }
6163 6163
6164 6164
6165 6165 /* get the device string descriptor(s) */
6166 6166 usba_get_dev_string_descrs(child_dip, child_ud);
6167 6167
6168 6168 /* retrieve config cloud for all configurations */
6169 6169 rval = hubd_get_all_device_config_cloud(hubd, child_dip, child_ud);
6170 6170 if (rval != USB_SUCCESS) {
6171 6171 USB_DPRINTF_L2(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
6172 6172 "failed to get configuration descriptor(s)");
6173 6173
6174 6174 goto fail_cleanup;
6175 6175 }
6176 6176
6177 6177 /* get the preferred configuration for this device */
6178 6178 user_conf_index = hubd_select_device_configuration(hubd, port,
6179 6179 child_dip, child_ud);
6180 6180
6181 6181 /* Check if the user selected configuration index is in range */
6182 6182 if ((user_conf_index >= usb_dev_descr.bNumConfigurations) ||
6183 6183 (user_conf_index < 0)) {
6184 6184 USB_DPRINTF_L2(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
6185 6185 "Configuration index for device idVendor=%d "
6186 6186 "idProduct=%d is=%d, and is out of range[0..%d]",
6187 6187 usb_dev_descr.idVendor, usb_dev_descr.idProduct,
6188 6188 user_conf_index, usb_dev_descr.bNumConfigurations - 1);
6189 6189
6190 6190 /* treat this as user didn't specify configuration */
6191 6191 user_conf_index = USBA_DEV_CONFIG_INDEX_UNDEFINED;
6192 6192 }
6193 6193
6194 6194
6195 6195 /*
6196 6196 * Warn users of a performance hit if connecting a
6197 6197 * High Speed behind a 1.1 hub, which is behind a
6198 6198 * 2.0 port.
6199 6199 */
6200 6200 if ((parent_port_status != USBA_HIGH_SPEED_DEV) &&
6201 6201 !(usba_is_root_hub(parent_ud->usb_dip)) &&
6202 6202 (parent_usb_addr)) {
6203 6203
6204 6204 /*
6205 6205 * Now that we know the root port is a high speed port
6206 6206 * and that the parent port is not a high speed port,
6207 6207 * let's find out if the device itself is a high speed
6208 6208 * device. If it is a high speed device,
6209 6209 * USB_DESCR_TYPE_SETUP_DEV_QLF should return a value,
6210 6210 * otherwise the command will fail.
6211 6211 */
6212 6212 rval = usb_pipe_sync_ctrl_xfer(child_dip, ph,
6213 6213 USB_DEV_REQ_DEV_TO_HOST | USB_DEV_REQ_TYPE_STANDARD,
6214 6214 USB_REQ_GET_DESCR, /* bRequest */
6215 6215 USB_DESCR_TYPE_SETUP_DEV_QLF, /* wValue */
6216 6216 0, /* wIndex */
6217 6217 10, /* wLength */
6218 6218 &pdata, USB_ATTRS_SHORT_XFER_OK,
6219 6219 &completion_reason, &cb_flags, 0);
6220 6220
6221 6221 if (pdata) {
6222 6222 freemsg(pdata);
6223 6223 pdata = NULL;
6224 6224 }
6225 6225
6226 6226 /*
6227 6227 * USB_DESCR_TYPE_SETUP_DEV_QLF query was successful
6228 6228 * that means this is a high speed device behind a
6229 6229 * high speed root hub, but running at full speed
6230 6230 * because there is a full speed hub in the middle.
6231 6231 */
6232 6232 if (rval == USB_SUCCESS) {
6233 6233 USB_DPRINTF_L0(DPRINT_MASK_HOTPLUG,
6234 6234 hubd->h_log_handle,
6235 6235 "Connecting a high speed device to a "
6236 6236 "non high speed hub (port %d) will result "
6237 6237 "in a loss of performance. Please connect "
6238 6238 "the device to a high speed hub to get "
6239 6239 "the maximum performance.",
6240 6240 port);
6241 6241 }
6242 6242 }
6243 6243
6244 6244 /*
6245 6245 * Now we try to online the device by attaching a driver
6246 6246 * The following truth table illustrates the logic:-
6247 6247 * Cfgndx Driver Action
6248 6248 * 0 0 loop all configs for driver with full
6249 6249 * compatible properties.
6250 6250 * 0 1 set first configuration,
6251 6251 * compatible prop = drivername.
6252 6252 * 1 0 Set config, full compatible prop
6253 6253 * 1 1 Set config, compatible prop = drivername.
6254 6254 *
6255 6255 * Note:
6256 6256 * cfgndx = user_conf_index
6257 6257 * Driver = usb_preferred_driver
6258 6258 */
6259 6259 if (user_conf_index == USBA_DEV_CONFIG_INDEX_UNDEFINED) {
6260 6260 if (child_ud->usb_preferred_driver) {
6261 6261 /*
6262 6262 * It is the job of the "preferred driver" to put the
6263 6263 * device in the desired configuration. Till then
6264 6264 * put the device in config index 0.
6265 6265 */
6266 6266 if ((rval = usba_hubdi_check_power_budget(dip, child_ud,
6267 6267 USB_DEV_DEFAULT_CONFIG_INDEX)) != USB_SUCCESS) {
6268 6268
6269 6269 goto fail_cleanup;
6270 6270 }
6271 6271
6272 6272 child_dip = hubd_ready_device(hubd, child_dip,
6273 6273 child_ud, USB_DEV_DEFAULT_CONFIG_INDEX);
6274 6274
6275 6275 /*
6276 6276 * Assign the dip before onlining to avoid race
6277 6277 * with busctl
6278 6278 */
6279 6279 mutex_enter(HUBD_MUTEX(hubd));
6280 6280 hubd->h_children_dips[port] = child_dip;
6281 6281 mutex_exit(HUBD_MUTEX(hubd));
6282 6282
6283 6283 (void) usba_bind_driver(child_dip);
6284 6284 } else {
6285 6285 /*
6286 6286 * loop through all the configurations to see if we
6287 6287 * can find a driver for any one config. If not, set
6288 6288 * the device in config_index 0
6289 6289 */
6290 6290 rval = USB_FAILURE;
6291 6291 for (config_index = 0;
6292 6292 (config_index < usb_dev_descr.bNumConfigurations) &&
6293 6293 (rval != USB_SUCCESS); config_index++) {
6294 6294
6295 6295 child_dip = hubd_ready_device(hubd, child_dip,
6296 6296 child_ud, config_index);
6297 6297
6298 6298 /*
6299 6299 * Assign the dip before onlining to avoid race
6300 6300 * with busctl
6301 6301 */
6302 6302 mutex_enter(HUBD_MUTEX(hubd));
6303 6303 hubd->h_children_dips[port] = child_dip;
6304 6304 mutex_exit(HUBD_MUTEX(hubd));
6305 6305
6306 6306 rval = usba_bind_driver(child_dip);
6307 6307
6308 6308 /*
6309 6309 * Normally power budget should be checked
6310 6310 * before device is configured. A failure in
6311 6311 * power budget checking will stop the device
6312 6312 * from being configured with current
6313 6313 * config_index and may enable the device to
6314 6314 * be configured in another configuration.
6315 6315 * This may break the user experience that a
6316 6316 * device which previously worked in config
6317 6317 * A now works in config B after power budget
6318 6318 * control is enabled. To avoid such situation,
6319 6319 * power budget checking is moved here and will
6320 6320 * fail the child creation directly if config
6321 6321 * A exceeds the power available.
6322 6322 */
6323 6323 if (rval == USB_SUCCESS) {
6324 6324 if ((usba_hubdi_check_power_budget(dip,
6325 6325 child_ud, config_index)) !=
6326 6326 USB_SUCCESS) {
6327 6327
6328 6328 goto fail_cleanup;
6329 6329 }
6330 6330 }
6331 6331 }
6332 6332 if (rval != USB_SUCCESS) {
6333 6333
6334 6334 if ((usba_hubdi_check_power_budget(dip,
6335 6335 child_ud, 0)) != USB_SUCCESS) {
6336 6336
6337 6337 goto fail_cleanup;
6338 6338 }
6339 6339
6340 6340 child_dip = hubd_ready_device(hubd, child_dip,
6341 6341 child_ud, 0);
6342 6342 mutex_enter(HUBD_MUTEX(hubd));
6343 6343 hubd->h_children_dips[port] = child_dip;
6344 6344 mutex_exit(HUBD_MUTEX(hubd));
6345 6345 }
6346 6346 } /* end else loop all configs */
6347 6347 } else {
6348 6348
6349 6349 if ((usba_hubdi_check_power_budget(dip, child_ud,
6350 6350 (uint_t)user_conf_index)) != USB_SUCCESS) {
6351 6351
6352 6352 goto fail_cleanup;
6353 6353 }
6354 6354
6355 6355 child_dip = hubd_ready_device(hubd, child_dip,
6356 6356 child_ud, (uint_t)user_conf_index);
6357 6357
6358 6358 /*
6359 6359 * Assign the dip before onlining to avoid race
6360 6360 * with busctl
6361 6361 */
6362 6362 mutex_enter(HUBD_MUTEX(hubd));
6363 6363 hubd->h_children_dips[port] = child_dip;
6364 6364 mutex_exit(HUBD_MUTEX(hubd));
6365 6365
6366 6366 (void) usba_bind_driver(child_dip);
6367 6367 }
6368 6368
6369 6369 usba_hubdi_decr_power_budget(dip, child_ud);
6370 6370
6371 6371 mutex_enter(HUBD_MUTEX(hubd));
6372 6372 if (hubd->h_usba_devices[port] == NULL) {
6373 6373 hubd->h_usba_devices[port] = usba_get_usba_device(child_dip);
6374 6374 } else {
6375 6375 ASSERT(hubd->h_usba_devices[port] ==
6376 6376 usba_get_usba_device(child_dip));
6377 6377 }
6378 6378
6379 6379 return (USB_SUCCESS);
6380 6380
6381 6381
6382 6382 fail_cleanup:
6383 6383 USB_DPRINTF_L3(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
6384 6384 "hubd_create_child: fail_cleanup");
6385 6385
6386 6386 mutex_enter(HUBD_MUTEX(hubd));
6387 6387 hubd->h_children_dips[port] = NULL;
6388 6388 mutex_exit(HUBD_MUTEX(hubd));
6389 6389
6390 6390 if (pdata) {
6391 6391 freemsg(pdata);
6392 6392 }
6393 6393
6394 6394 if (ph) {
6395 6395 usb_pipe_close(child_dip, ph,
6396 6396 USB_FLAGS_SLEEP | USBA_FLAGS_PRIVILEGED, NULL, NULL);
6397 6397 }
6398 6398
6399 6399 if (child_dip) {
6400 6400 int rval = usba_destroy_child_devi(child_dip,
6401 6401 NDI_DEVI_REMOVE);
6402 6402 if (rval != USB_SUCCESS) {
6403 6403 USB_DPRINTF_L2(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
6404 6404 "failure to remove child node");
6405 6405 }
6406 6406 }
6407 6407
6408 6408 if (child_ud) {
6409 6409 /* to make sure we free the address */
6410 6410 mutex_enter(&child_ud->usb_mutex);
6411 6411 child_ud->usb_addr = address;
6412 6412 ASSERT(child_ud->usb_ref_count == 0);
6413 6413 mutex_exit(&child_ud->usb_mutex);
6414 6414
6415 6415 mutex_enter(HUBD_MUTEX(hubd));
6416 6416 if (hubd->h_usba_devices[port] == NULL) {
6417 6417 mutex_exit(HUBD_MUTEX(hubd));
6418 6418 usba_free_usba_device(child_ud);
6419 6419 } else {
6420 6420 hubd_free_usba_device(hubd, hubd->h_usba_devices[port]);
6421 6421 mutex_exit(HUBD_MUTEX(hubd));
6422 6422 }
6423 6423 }
6424 6424
6425 6425 mutex_enter(HUBD_MUTEX(hubd));
6426 6426
6427 6427 return (USB_FAILURE);
6428 6428 }
6429 6429
6430 6430
6431 6431 /*
6432 6432 * hubd_delete_child:
6433 6433 * - free usb address
6434 6434 * - lookup child dips, there may be multiple on this port
6435 6435 * - offline each child devi
6436 6436 */
6437 6437 static int
6438 6438 hubd_delete_child(hubd_t *hubd, usb_port_t port, uint_t flag, boolean_t retry)
6439 6439 {
6440 6440 dev_info_t *child_dip;
6441 6441 usba_device_t *usba_device;
6442 6442 int rval = USB_SUCCESS;
6443 6443
6444 6444 child_dip = hubd->h_children_dips[port];
6445 6445 usba_device = hubd->h_usba_devices[port];
6446 6446
6447 6447 USB_DPRINTF_L4(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
6448 6448 "hubd_delete_child: port=%d, dip=0x%p usba_device=0x%p",
6449 6449 port, (void *)child_dip, (void *)usba_device);
6450 6450
6451 6451 mutex_exit(HUBD_MUTEX(hubd));
6452 6452 if (child_dip) {
6453 6453 USB_DPRINTF_L2(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
6454 6454 "hubd_delete_child:\n\t"
6455 6455 "dip = 0x%p (%s) at port %d",
6456 6456 (void *)child_dip, ddi_node_name(child_dip), port);
6457 6457
6458 6458 if (usba_device) {
6459 6459 usba_hubdi_incr_power_budget(hubd->h_dip, usba_device);
6460 6460 }
6461 6461
6462 6462 rval = usba_destroy_child_devi(child_dip, flag);
6463 6463
6464 6464 if ((rval == USB_SUCCESS) && (flag & NDI_DEVI_REMOVE)) {
6465 6465 /*
6466 6466 * if the child was still < DS_INITIALIZED
6467 6467 * then our bus_unconfig was not called and
6468 6468 * we have to zap the child here
6469 6469 */
6470 6470 mutex_enter(HUBD_MUTEX(hubd));
6471 6471 if (hubd->h_children_dips[port] == child_dip) {
6472 6472 usba_device_t *ud =
6473 6473 hubd->h_usba_devices[port];
6474 6474 hubd->h_children_dips[port] = NULL;
6475 6475 if (ud) {
6476 6476 mutex_exit(HUBD_MUTEX(hubd));
6477 6477
6478 6478 mutex_enter(&ud->usb_mutex);
6479 6479 ud->usb_ref_count = 0;
6480 6480 mutex_exit(&ud->usb_mutex);
6481 6481
6482 6482 usba_free_usba_device(ud);
6483 6483 mutex_enter(HUBD_MUTEX(hubd));
6484 6484 hubd->h_usba_devices[port] = NULL;
6485 6485 }
6486 6486 }
6487 6487 mutex_exit(HUBD_MUTEX(hubd));
6488 6488 }
6489 6489 }
6490 6490
6491 6491 if ((rval != USB_SUCCESS) && retry) {
6492 6492
6493 6493 hubd_schedule_cleanup(usba_device->usb_root_hub_dip);
6494 6494 }
6495 6495 mutex_enter(HUBD_MUTEX(hubd));
6496 6496
6497 6497 return (rval);
6498 6498 }
6499 6499
6500 6500
6501 6501 /*
6502 6502 * hubd_free_usba_device:
6503 6503 * free usb device structure unless it is associated with
6504 6504 * the root hub which is handled differently
6505 6505 */
6506 6506 static void
6507 6507 hubd_free_usba_device(hubd_t *hubd, usba_device_t *usba_device)
6508 6508 {
6509 6509 USB_DPRINTF_L4(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
6510 6510 "hubd_free_usba_device: hubd=0x%p, usba_device=0x%p",
6511 6511 (void *)hubd, (void *)usba_device);
6512 6512
6513 6513 if (usba_device && (usba_device->usb_addr != ROOT_HUB_ADDR)) {
6514 6514 usb_port_t port = usba_device->usb_port;
6515 6515 dev_info_t *dip = hubd->h_children_dips[port];
6516 6516
6517 6517 #ifdef DEBUG
6518 6518 if (dip) {
6519 6519 ASSERT(i_ddi_node_state(dip) < DS_INITIALIZED);
6520 6520 }
6521 6521 #endif
6522 6522
6523 6523 port = usba_device->usb_port;
6524 6524 hubd->h_usba_devices[port] = NULL;
6525 6525
6526 6526 mutex_exit(HUBD_MUTEX(hubd));
6527 6527 usba_free_usba_device(usba_device);
6528 6528 mutex_enter(HUBD_MUTEX(hubd));
6529 6529 }
6530 6530 }
6531 6531
6532 6532
6533 6533 /*
6534 6534 * event support
6535 6535 *
6536 6536 * busctl event support
6537 6537 */
6538 6538 static int
6539 6539 hubd_busop_get_eventcookie(dev_info_t *dip,
6540 6540 dev_info_t *rdip,
6541 6541 char *eventname,
6542 6542 ddi_eventcookie_t *cookie)
6543 6543 {
6544 6544 hubd_t *hubd = (hubd_t *)hubd_get_soft_state(dip);
6545 6545
6546 6546 USB_DPRINTF_L3(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
6547 6547 "hubd_busop_get_eventcookie: dip=0x%p, rdip=0x%p, "
6548 6548 "event=%s", (void *)dip, (void *)rdip, eventname);
6549 6549 USB_DPRINTF_L3(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
6550 6550 "(dip=%s%d, rdip=%s%d)",
6551 6551 ddi_driver_name(dip), ddi_get_instance(dip),
6552 6552 ddi_driver_name(rdip), ddi_get_instance(rdip));
6553 6553
6554 6554 /* return event cookie, iblock cookie, and level */
6555 6555 return (ndi_event_retrieve_cookie(hubd->h_ndi_event_hdl,
6556 6556 rdip, eventname, cookie, NDI_EVENT_NOPASS));
6557 6557 }
6558 6558
6559 6559
6560 6560 static int
6561 6561 hubd_busop_add_eventcall(dev_info_t *dip,
6562 6562 dev_info_t *rdip,
6563 6563 ddi_eventcookie_t cookie,
6564 6564 void (*callback)(dev_info_t *dip,
6565 6565 ddi_eventcookie_t cookie, void *arg,
6566 6566 void *bus_impldata),
6567 6567 void *arg, ddi_callback_id_t *cb_id)
6568 6568 {
6569 6569 hubd_t *hubd = (hubd_t *)hubd_get_soft_state(dip);
6570 6570 usb_port_t port = hubd_child_dip2port(hubd, rdip);
6571 6571
6572 6572 USB_DPRINTF_L3(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
6573 6573 "hubd_busop_add_eventcall: dip=0x%p, rdip=0x%p "
6574 6574 "cookie=0x%p, cb=0x%p, arg=0x%p",
6575 6575 (void *)dip, (void *)rdip, (void *)cookie, (void *)callback, arg);
6576 6576 USB_DPRINTF_L3(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
6577 6577 "(dip=%s%d, rdip=%s%d, event=%s)",
6578 6578 ddi_driver_name(dip), ddi_get_instance(dip),
6579 6579 ddi_driver_name(rdip), ddi_get_instance(rdip),
6580 6580 ndi_event_cookie_to_name(hubd->h_ndi_event_hdl, cookie));
6581 6581
6582 6582 /* Set flag on children registering events */
6583 6583 switch (ndi_event_cookie_to_tag(hubd->h_ndi_event_hdl, cookie)) {
6584 6584 case USBA_EVENT_TAG_HOT_REMOVAL:
6585 6585 mutex_enter(HUBD_MUTEX(hubd));
6586 6586 hubd->h_child_events[port] |= HUBD_CHILD_EVENT_DISCONNECT;
6587 6587 mutex_exit(HUBD_MUTEX(hubd));
6588 6588
6589 6589 break;
6590 6590 case USBA_EVENT_TAG_PRE_SUSPEND:
6591 6591 mutex_enter(HUBD_MUTEX(hubd));
6592 6592 hubd->h_child_events[port] |= HUBD_CHILD_EVENT_PRESUSPEND;
6593 6593 mutex_exit(HUBD_MUTEX(hubd));
6594 6594
6595 6595 break;
6596 6596 default:
6597 6597
6598 6598 break;
6599 6599 }
6600 6600
6601 6601 /* add callback to our event set */
6602 6602 return (ndi_event_add_callback(hubd->h_ndi_event_hdl,
6603 6603 rdip, cookie, callback, arg, NDI_SLEEP, cb_id));
6604 6604 }
6605 6605
6606 6606
6607 6607 static int
6608 6608 hubd_busop_remove_eventcall(dev_info_t *dip, ddi_callback_id_t cb_id)
6609 6609 {
6610 6610 hubd_t *hubd = (hubd_t *)hubd_get_soft_state(dip);
6611 6611 ndi_event_callbacks_t *id = (ndi_event_callbacks_t *)cb_id;
6612 6612
6613 6613 USB_DPRINTF_L3(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
6614 6614 "hubd_busop_remove_eventcall: dip=0x%p, rdip=0x%p "
6615 6615 "cookie=0x%p", (void *)dip, (void *)id->ndi_evtcb_dip,
6616 6616 (void *)id->ndi_evtcb_cookie);
6617 6617 USB_DPRINTF_L3(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
6618 6618 "(dip=%s%d, rdip=%s%d, event=%s)",
6619 6619 ddi_driver_name(dip), ddi_get_instance(dip),
6620 6620 ddi_driver_name(id->ndi_evtcb_dip),
6621 6621 ddi_get_instance(id->ndi_evtcb_dip),
6622 6622 ndi_event_cookie_to_name(hubd->h_ndi_event_hdl,
6623 6623 id->ndi_evtcb_cookie));
6624 6624
6625 6625 /* remove event registration from our event set */
6626 6626 return (ndi_event_remove_callback(hubd->h_ndi_event_hdl, cb_id));
6627 6627 }
6628 6628
6629 6629
6630 6630 /*
6631 6631 * event distribution
6632 6632 *
6633 6633 * hubd_do_callback:
6634 6634 * Post this event to the specified child
6635 6635 */
6636 6636 static void
6637 6637 hubd_do_callback(hubd_t *hubd, dev_info_t *cdip, ddi_eventcookie_t cookie)
6638 6638 {
6639 6639 USB_DPRINTF_L4(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
6640 6640 "hubd_do_callback");
6641 6641
6642 6642 (void) ndi_event_do_callback(hubd->h_ndi_event_hdl, cdip, cookie, NULL);
6643 6643 }
6644 6644
6645 6645
6646 6646 /*
6647 6647 * hubd_run_callbacks:
6648 6648 * Send this event to all children
6649 6649 */
6650 6650 static void
6651 6651 hubd_run_callbacks(hubd_t *hubd, usba_event_t type)
6652 6652 {
6653 6653 usb_port_t port;
6654 6654
6655 6655 USB_DPRINTF_L4(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
6656 6656 "hubd_run_callbacks");
6657 6657
6658 6658 mutex_enter(HUBD_MUTEX(hubd));
6659 6659 for (port = 1; port <= hubd->h_hub_descr.bNbrPorts; port++) {
6660 6660 /*
6661 6661 * the childen_dips list may have dips that have been
6662 6662 * already deallocated. we only get a post_detach notification
6663 6663 * but not a destroy notification
6664 6664 */
6665 6665 if (hubd->h_children_dips[port]) {
6666 6666 mutex_exit(HUBD_MUTEX(hubd));
6667 6667 hubd_post_event(hubd, port, type);
6668 6668 mutex_enter(HUBD_MUTEX(hubd));
6669 6669 }
6670 6670 }
6671 6671 mutex_exit(HUBD_MUTEX(hubd));
6672 6672 }
6673 6673
6674 6674
6675 6675 /*
6676 6676 * hubd_post_event
6677 6677 * post event to a child on the port depending on the type
6678 6678 */
6679 6679 static void
6680 6680 hubd_post_event(hubd_t *hubd, usb_port_t port, usba_event_t type)
6681 6681 {
6682 6682 int rval;
6683 6683 dev_info_t *dip;
6684 6684 usba_device_t *usba_device;
6685 6685 ddi_eventcookie_t cookie, rm_cookie, suspend_cookie;
6686 6686
6687 6687 USB_DPRINTF_L3(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
6688 6688 "hubd_post_event: port=%d event=%s", port,
6689 6689 ndi_event_tag_to_name(hubd->h_ndi_event_hdl, type));
6690 6690
6691 6691 cookie = ndi_event_tag_to_cookie(hubd->h_ndi_event_hdl, type);
6692 6692 rm_cookie = ndi_event_tag_to_cookie(hubd->h_ndi_event_hdl,
6693 6693 USBA_EVENT_TAG_HOT_REMOVAL);
6694 6694 suspend_cookie = ndi_event_tag_to_cookie(hubd->h_ndi_event_hdl,
6695 6695 USBA_EVENT_TAG_PRE_SUSPEND);
6696 6696
6697 6697 /*
6698 6698 * Hotplug daemon may be attaching a driver that may be registering
6699 6699 * event callbacks. So it already has got the device tree lock and
6700 6700 * event handle mutex. So to prevent a deadlock while posting events,
6701 6701 * we grab and release the locks in the same order.
6702 6702 */
6703 6703 mutex_enter(HUBD_MUTEX(hubd));
6704 6704 dip = hubd->h_children_dips[port];
6705 6705 usba_device = hubd->h_usba_devices[port];
6706 6706 mutex_exit(HUBD_MUTEX(hubd));
6707 6707
6708 6708 switch (type) {
6709 6709 case USBA_EVENT_TAG_HOT_REMOVAL:
6710 6710 /* Clear the registered event flag */
6711 6711 mutex_enter(HUBD_MUTEX(hubd));
6712 6712 hubd->h_child_events[port] &= ~HUBD_CHILD_EVENT_DISCONNECT;
6713 6713 mutex_exit(HUBD_MUTEX(hubd));
6714 6714
6715 6715 hubd_do_callback(hubd, dip, cookie);
6716 6716 usba_persistent_pipe_close(usba_device);
6717 6717
6718 6718 /*
6719 6719 * Mark the dip for deletion only after the driver has
6720 6720 * seen the disconnect event to prevent cleanup thread
6721 6721 * from stepping in between.
6722 6722 */
6723 6723 mutex_enter(&(DEVI(dip)->devi_lock));
6724 6724 DEVI_SET_DEVICE_REMOVED(dip);
6725 6725 mutex_exit(&(DEVI(dip)->devi_lock));
6726 6726
6727 6727 break;
6728 6728 case USBA_EVENT_TAG_PRE_SUSPEND:
6729 6729 mutex_enter(HUBD_MUTEX(hubd));
6730 6730 hubd->h_child_events[port] &= ~HUBD_CHILD_EVENT_PRESUSPEND;
6731 6731 mutex_exit(HUBD_MUTEX(hubd));
6732 6732
6733 6733 hubd_do_callback(hubd, dip, cookie);
6734 6734 /*
6735 6735 * persistent pipe close for this event is taken care by the
6736 6736 * caller after verfying that all children can suspend
6737 6737 */
6738 6738
6739 6739 break;
6740 6740 case USBA_EVENT_TAG_HOT_INSERTION:
6741 6741 /*
6742 6742 * Check if this child has missed the disconnect event before
6743 6743 * it registered for event callbacks
6744 6744 */
6745 6745 mutex_enter(HUBD_MUTEX(hubd));
6746 6746 if (hubd->h_child_events[port] & HUBD_CHILD_EVENT_DISCONNECT) {
6747 6747 /* clear the flag and post disconnect event */
6748 6748 hubd->h_child_events[port] &=
6749 6749 ~HUBD_CHILD_EVENT_DISCONNECT;
6750 6750 mutex_exit(HUBD_MUTEX(hubd));
6751 6751 hubd_do_callback(hubd, dip, rm_cookie);
6752 6752 usba_persistent_pipe_close(usba_device);
6753 6753 mutex_enter(HUBD_MUTEX(hubd));
6754 6754 }
6755 6755 mutex_exit(HUBD_MUTEX(hubd));
6756 6756
6757 6757 /*
6758 6758 * Mark the dip as reinserted to prevent cleanup thread
6759 6759 * from stepping in.
6760 6760 */
6761 6761 mutex_enter(&(DEVI(dip)->devi_lock));
6762 6762 DEVI_SET_DEVICE_REINSERTED(dip);
6763 6763 mutex_exit(&(DEVI(dip)->devi_lock));
6764 6764
6765 6765 rval = usba_persistent_pipe_open(usba_device);
6766 6766 if (rval != USB_SUCCESS) {
6767 6767 USB_DPRINTF_L2(DPRINT_MASK_HOTPLUG,
6768 6768 hubd->h_log_handle,
6769 6769 "failed to reopen all pipes on reconnect");
6770 6770 }
6771 6771
6772 6772 hubd_do_callback(hubd, dip, cookie);
6773 6773
6774 6774 /*
6775 6775 * We might see a connect event only if hotplug thread for
6776 6776 * disconnect event don't run in time.
6777 6777 * Set the flag again, so we don't miss posting a
6778 6778 * disconnect event.
6779 6779 */
6780 6780 mutex_enter(HUBD_MUTEX(hubd));
6781 6781 hubd->h_child_events[port] |= HUBD_CHILD_EVENT_DISCONNECT;
6782 6782 mutex_exit(HUBD_MUTEX(hubd));
6783 6783
6784 6784 break;
6785 6785 case USBA_EVENT_TAG_POST_RESUME:
6786 6786 /*
6787 6787 * Check if this child has missed the pre-suspend event before
6788 6788 * it registered for event callbacks
6789 6789 */
6790 6790 mutex_enter(HUBD_MUTEX(hubd));
6791 6791 if (hubd->h_child_events[port] & HUBD_CHILD_EVENT_PRESUSPEND) {
6792 6792 /* clear the flag and post pre_suspend event */
6793 6793 hubd->h_port_state[port] &=
6794 6794 ~HUBD_CHILD_EVENT_PRESUSPEND;
6795 6795 mutex_exit(HUBD_MUTEX(hubd));
6796 6796 hubd_do_callback(hubd, dip, suspend_cookie);
6797 6797 mutex_enter(HUBD_MUTEX(hubd));
6798 6798 }
6799 6799 mutex_exit(HUBD_MUTEX(hubd));
6800 6800
6801 6801 mutex_enter(&usba_device->usb_mutex);
6802 6802 usba_device->usb_no_cpr = 0;
6803 6803 mutex_exit(&usba_device->usb_mutex);
6804 6804
6805 6805 /*
6806 6806 * Since the pipe has already been opened by hub
6807 6807 * at DDI_RESUME time, there is no need for a
6808 6808 * persistent pipe open
6809 6809 */
6810 6810 hubd_do_callback(hubd, dip, cookie);
6811 6811
6812 6812 /*
6813 6813 * Set the flag again, so we don't miss posting a
6814 6814 * pre-suspend event. This enforces a tighter
6815 6815 * dev_state model.
6816 6816 */
6817 6817 mutex_enter(HUBD_MUTEX(hubd));
6818 6818 hubd->h_child_events[port] |= HUBD_CHILD_EVENT_PRESUSPEND;
6819 6819 mutex_exit(HUBD_MUTEX(hubd));
6820 6820 break;
6821 6821 }
6822 6822 }
6823 6823
6824 6824
6825 6825 /*
6826 6826 * handling of events coming from above
6827 6827 */
6828 6828 static int
6829 6829 hubd_disconnect_event_cb(dev_info_t *dip)
6830 6830 {
6831 6831 hubd_t *hubd = (hubd_t *)hubd_get_soft_state(dip);
6832 6832 usb_port_t port, nports;
6833 6833 usba_device_t *usba_dev;
6834 6834 usba_event_t tag = USBA_EVENT_TAG_HOT_REMOVAL;
6835 6835 int circ;
6836 6836
6837 6837 USB_DPRINTF_L4(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
6838 6838 "hubd_disconnect_event_cb: tag=%d", tag);
6839 6839
6840 6840 ndi_devi_enter(dip, &circ);
6841 6841
6842 6842 mutex_enter(HUBD_MUTEX(hubd));
6843 6843 switch (hubd->h_dev_state) {
6844 6844 case USB_DEV_ONLINE:
6845 6845 case USB_DEV_PWRED_DOWN:
6846 6846 hubd->h_dev_state = USB_DEV_DISCONNECTED;
6847 6847 /* stop polling on the interrupt pipe */
6848 6848 hubd_stop_polling(hubd);
6849 6849
6850 6850 /* FALLTHROUGH */
6851 6851 case USB_DEV_SUSPENDED:
6852 6852 /* we remain in this state */
6853 6853 mutex_exit(HUBD_MUTEX(hubd));
6854 6854 hubd_run_callbacks(hubd, tag);
6855 6855 mutex_enter(HUBD_MUTEX(hubd));
6856 6856
6857 6857 /* close all the open pipes of our children */
6858 6858 nports = hubd->h_hub_descr.bNbrPorts;
6859 6859 for (port = 1; port <= nports; port++) {
6860 6860 usba_dev = hubd->h_usba_devices[port];
6861 6861 if (usba_dev != NULL) {
6862 6862 mutex_exit(HUBD_MUTEX(hubd));
6863 6863 usba_persistent_pipe_close(usba_dev);
6864 6864 mutex_enter(HUBD_MUTEX(hubd));
6865 6865 }
6866 6866 }
6867 6867
6868 6868 break;
6869 6869 case USB_DEV_DISCONNECTED:
6870 6870 /* avoid passing multiple disconnects to children */
6871 6871 USB_DPRINTF_L2(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
6872 6872 "hubd_disconnect_event_cb: Already disconnected");
6873 6873
6874 6874 break;
6875 6875 default:
6876 6876 USB_DPRINTF_L2(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
6877 6877 "hubd_disconnect_event_cb: Illegal devstate=%d",
6878 6878 hubd->h_dev_state);
6879 6879
6880 6880 break;
6881 6881 }
6882 6882 mutex_exit(HUBD_MUTEX(hubd));
6883 6883
6884 6884 ndi_devi_exit(dip, circ);
6885 6885
6886 6886 return (USB_SUCCESS);
6887 6887 }
6888 6888
6889 6889
6890 6890 static int
6891 6891 hubd_reconnect_event_cb(dev_info_t *dip)
6892 6892 {
6893 6893 int rval, circ;
6894 6894
6895 6895 ndi_devi_enter(dip, &circ);
6896 6896 rval = hubd_restore_state_cb(dip);
6897 6897 ndi_devi_exit(dip, circ);
6898 6898
6899 6899 return (rval);
6900 6900 }
6901 6901
6902 6902
6903 6903 /*
6904 6904 * hubd_pre_suspend_event_cb
6905 6905 * propogate event for binary compatibility of old drivers
6906 6906 */
6907 6907 static int
6908 6908 hubd_pre_suspend_event_cb(dev_info_t *dip)
6909 6909 {
6910 6910 int circ;
6911 6911 hubd_t *hubd = (hubd_t *)hubd_get_soft_state(dip);
6912 6912
6913 6913 USB_DPRINTF_L4(DPRINT_MASK_EVENTS, hubd->h_log_handle,
6914 6914 "hubd_pre_suspend_event_cb");
6915 6915
6916 6916 /* disable hotplug thread */
6917 6917 mutex_enter(HUBD_MUTEX(hubd));
6918 6918 hubd->h_hotplug_thread++;
6919 6919 hubd_stop_polling(hubd);
6920 6920
6921 6921 /* keep PM out till we see a cpr resume */
6922 6922 (void) hubd_pm_busy_component(hubd, hubd->h_dip, 0);
6923 6923 mutex_exit(HUBD_MUTEX(hubd));
6924 6924
6925 6925 ndi_devi_enter(dip, &circ);
6926 6926 hubd_run_callbacks(hubd, USBA_EVENT_TAG_PRE_SUSPEND);
6927 6927 ndi_devi_exit(dip, circ);
6928 6928
6929 6929 return (USB_SUCCESS);
6930 6930 }
6931 6931
6932 6932
6933 6933 /*
6934 6934 * hubd_post_resume_event_cb
6935 6935 * propogate event for binary compatibility of old drivers
6936 6936 */
6937 6937 static int
6938 6938 hubd_post_resume_event_cb(dev_info_t *dip)
6939 6939 {
6940 6940 int circ;
6941 6941 hubd_t *hubd = (hubd_t *)hubd_get_soft_state(dip);
6942 6942
6943 6943 USB_DPRINTF_L4(DPRINT_MASK_EVENTS, hubd->h_log_handle,
6944 6944 "hubd_post_resume_event_cb");
6945 6945
6946 6946 ndi_devi_enter(dip, &circ);
6947 6947 hubd_run_callbacks(hubd, USBA_EVENT_TAG_POST_RESUME);
6948 6948 ndi_devi_exit(dip, circ);
6949 6949
6950 6950 mutex_enter(HUBD_MUTEX(hubd));
6951 6951
6952 6952 /* enable PM */
6953 6953 (void) hubd_pm_idle_component(hubd, hubd->h_dip, 0);
6954 6954
6955 6955 /* allow hotplug thread */
6956 6956 hubd->h_hotplug_thread--;
6957 6957
6958 6958 /* start polling */
6959 6959 hubd_start_polling(hubd, 0);
6960 6960 mutex_exit(HUBD_MUTEX(hubd));
6961 6961
6962 6962 return (USB_SUCCESS);
6963 6963 }
6964 6964
6965 6965
6966 6966 /*
6967 6967 * hubd_cpr_suspend
6968 6968 * save the current state of the driver/device
6969 6969 */
6970 6970 static int
6971 6971 hubd_cpr_suspend(hubd_t *hubd)
6972 6972 {
6973 6973 usb_port_t port, nports;
6974 6974 usba_device_t *usba_dev;
6975 6975 uchar_t no_cpr = 0;
6976 6976 int rval = USB_FAILURE;
6977 6977
6978 6978 USB_DPRINTF_L4(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
6979 6979 "hubd_cpr_suspend: Begin");
6980 6980
6981 6981 /* Make sure device is powered up to save state. */
6982 6982 mutex_enter(HUBD_MUTEX(hubd));
6983 6983 hubd_pm_busy_component(hubd, hubd->h_dip, 0);
6984 6984 mutex_exit(HUBD_MUTEX(hubd));
6985 6985
6986 6986 /* bring the device to full power */
6987 6987 (void) pm_raise_power(hubd->h_dip, 0, USB_DEV_OS_FULL_PWR);
6988 6988 mutex_enter(HUBD_MUTEX(hubd));
6989 6989
6990 6990 switch (hubd->h_dev_state) {
6991 6991 case USB_DEV_ONLINE:
6992 6992 case USB_DEV_PWRED_DOWN:
6993 6993 case USB_DEV_DISCONNECTED:
6994 6994 /* find out if all our children have been quiesced */
6995 6995 nports = hubd->h_hub_descr.bNbrPorts;
6996 6996 for (port = 1; (no_cpr == 0) && (port <= nports); port++) {
6997 6997 usba_dev = hubd->h_usba_devices[port];
6998 6998 if (usba_dev != NULL) {
6999 6999 mutex_enter(&usba_dev->usb_mutex);
7000 7000 no_cpr += usba_dev->usb_no_cpr;
7001 7001 mutex_exit(&usba_dev->usb_mutex);
7002 7002 }
7003 7003 }
7004 7004 if (no_cpr > 0) {
7005 7005 USB_DPRINTF_L2(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
7006 7006 "Children busy - can't checkpoint");
7007 7007 /* remain in same state to fail checkpoint */
7008 7008
7009 7009 break;
7010 7010 } else {
7011 7011 /*
7012 7012 * do not suspend if our hotplug thread
7013 7013 * or the deathrow thread is active
7014 7014 */
7015 7015 if ((hubd->h_hotplug_thread > 1) ||
7016 7016 (hubd->h_cleanup_active == B_TRUE)) {
7017 7017 USB_DPRINTF_L2(DPRINT_MASK_HOTPLUG,
7018 7018 hubd->h_log_handle,
7019 7019 "hotplug thread active - can't cpr");
7020 7020 /* remain in same state to fail checkpoint */
7021 7021
7022 7022 break;
7023 7023 }
7024 7024
7025 7025 /* quiesce ourselves now */
7026 7026 hubd_stop_polling(hubd);
7027 7027
7028 7028 /* close all the open pipes of our children */
7029 7029 for (port = 1; port <= nports; port++) {
7030 7030 usba_dev = hubd->h_usba_devices[port];
7031 7031 if (usba_dev != NULL) {
7032 7032 mutex_exit(HUBD_MUTEX(hubd));
7033 7033 usba_persistent_pipe_close(usba_dev);
7034 7034 if (hubd_suspend_port(hubd, port)) {
7035 7035 USB_DPRINTF_L0(
7036 7036 DPRINT_MASK_HOTPLUG,
7037 7037 hubd->h_log_handle,
7038 7038 "suspending port %d failed",
7039 7039 port);
7040 7040 }
7041 7041 mutex_enter(HUBD_MUTEX(hubd));
7042 7042 }
7043 7043
7044 7044 }
7045 7045 hubd->h_dev_state = USB_DEV_SUSPENDED;
7046 7046
7047 7047 /*
7048 7048 * if we are the root hub, we close our pipes
7049 7049 * ourselves.
7050 7050 */
7051 7051 if (usba_is_root_hub(hubd->h_dip)) {
7052 7052 mutex_exit(HUBD_MUTEX(hubd));
7053 7053 usba_persistent_pipe_close(
7054 7054 usba_get_usba_device(hubd->h_dip));
7055 7055 mutex_enter(HUBD_MUTEX(hubd));
7056 7056 }
7057 7057 rval = USB_SUCCESS;
7058 7058
7059 7059 break;
7060 7060 }
7061 7061 case USB_DEV_SUSPENDED:
7062 7062 default:
7063 7063 USB_DPRINTF_L2(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
7064 7064 "hubd_cpr_suspend: Illegal dev state=%d",
7065 7065 hubd->h_dev_state);
7066 7066
7067 7067 break;
7068 7068 }
7069 7069
7070 7070 hubd_pm_idle_component(hubd, hubd->h_dip, 0);
7071 7071 mutex_exit(HUBD_MUTEX(hubd));
7072 7072
7073 7073 return (rval);
7074 7074 }
7075 7075
7076 7076 static void
7077 7077 hubd_cpr_resume(dev_info_t *dip)
7078 7078 {
7079 7079 int rval, circ;
7080 7080
7081 7081 ndi_devi_enter(dip, &circ);
7082 7082 /*
7083 7083 * if we are the root hub, we open our pipes
7084 7084 * ourselves.
7085 7085 */
7086 7086 if (usba_is_root_hub(dip)) {
7087 7087 rval = usba_persistent_pipe_open(
7088 7088 usba_get_usba_device(dip));
7089 7089 ASSERT(rval == USB_SUCCESS);
7090 7090 }
7091 7091 (void) hubd_restore_state_cb(dip);
7092 7092 ndi_devi_exit(dip, circ);
7093 7093 }
7094 7094
7095 7095
7096 7096 /*
7097 7097 * hubd_restore_state_cb
7098 7098 * Event callback to restore device state
7099 7099 */
7100 7100 static int
7101 7101 hubd_restore_state_cb(dev_info_t *dip)
7102 7102 {
7103 7103 hubd_t *hubd = (hubd_t *)hubd_get_soft_state(dip);
7104 7104
7105 7105 USB_DPRINTF_L3(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
7106 7106 "hubd_restore_state_cb: Begin");
7107 7107
7108 7108 /* restore the state of this device */
7109 7109 hubd_restore_device_state(dip, hubd);
7110 7110
7111 7111 return (USB_SUCCESS);
7112 7112 }
7113 7113
7114 7114
7115 7115 /*
7116 7116 * registering for events
7117 7117 */
7118 7118 static int
7119 7119 hubd_register_events(hubd_t *hubd)
7120 7120 {
7121 7121 int rval = USB_SUCCESS;
7122 7122
7123 7123 if (usba_is_root_hub(hubd->h_dip)) {
7124 7124 hubd_register_cpr_callback(hubd);
7125 7125 } else {
7126 7126 rval = usb_register_event_cbs(hubd->h_dip, &hubd_events, 0);
7127 7127 }
7128 7128
7129 7129 return (rval);
7130 7130 }
7131 7131
7132 7132
7133 7133 /*
7134 7134 * hubd cpr callback related functions
7135 7135 *
7136 7136 * hubd_cpr_post_user_callb:
7137 7137 * This function is called during checkpoint & resume -
7138 7138 * 1. after user threads are stopped during checkpoint
7139 7139 * 2. after kernel threads are resumed during resume
7140 7140 */
7141 7141 /* ARGSUSED */
7142 7142 static boolean_t
7143 7143 hubd_cpr_post_user_callb(void *arg, int code)
7144 7144 {
7145 7145 hubd_cpr_t *cpr_cb = (hubd_cpr_t *)arg;
7146 7146 hubd_t *hubd = cpr_cb->statep;
7147 7147 int retry = 0;
7148 7148
7149 7149 USB_DPRINTF_L4(DPRINT_MASK_EVENTS, hubd->h_log_handle,
7150 7150 "hubd_cpr_post_user_callb");
7151 7151
7152 7152 switch (code) {
7153 7153 case CB_CODE_CPR_CHKPT:
7154 7154 USB_DPRINTF_L3(DPRINT_MASK_EVENTS, hubd->h_log_handle,
7155 7155 "hubd_cpr_post_user_callb: CB_CODE_CPR_CHKPT");
7156 7156
7157 7157 mutex_enter(HUBD_MUTEX(hubd));
7158 7158
7159 7159 /* turn off deathrow thread */
7160 7160 hubd->h_cleanup_enabled = B_FALSE;
7161 7161
7162 7162 /* give up if deathrow thread doesn't exit */
7163 7163 while ((hubd->h_cleanup_active == B_TRUE) && (retry++ < 3)) {
7164 7164 mutex_exit(HUBD_MUTEX(hubd));
7165 7165 delay(drv_usectohz(hubd_dip_cleanup_delay));
7166 7166
7167 7167 USB_DPRINTF_L2(DPRINT_MASK_EVENTS, hubd->h_log_handle,
7168 7168 "hubd_cpr_post_user_callb, waiting for "
7169 7169 "deathrow thread to exit");
7170 7170 mutex_enter(HUBD_MUTEX(hubd));
7171 7171 }
7172 7172
7173 7173 mutex_exit(HUBD_MUTEX(hubd));
7174 7174
7175 7175 /* save the state of the device */
7176 7176 (void) hubd_pre_suspend_event_cb(hubd->h_dip);
7177 7177
7178 7178 return (B_TRUE);
7179 7179 case CB_CODE_CPR_RESUME:
7180 7180 USB_DPRINTF_L3(DPRINT_MASK_EVENTS, hubd->h_log_handle,
7181 7181 "hubd_cpr_post_user_callb: CB_CODE_CPR_RESUME");
7182 7182
7183 7183 /* restore the state of the device */
7184 7184 (void) hubd_post_resume_event_cb(hubd->h_dip);
7185 7185
7186 7186 /* turn on deathrow thread */
7187 7187 mutex_enter(HUBD_MUTEX(hubd));
7188 7188 hubd->h_cleanup_enabled = B_TRUE;
7189 7189 mutex_exit(HUBD_MUTEX(hubd));
7190 7190
7191 7191 hubd_schedule_cleanup(hubd->h_usba_device->usb_root_hub_dip);
7192 7192
7193 7193 return (B_TRUE);
7194 7194 default:
7195 7195
7196 7196 return (B_FALSE);
7197 7197 }
7198 7198
7199 7199 }
7200 7200
7201 7201
7202 7202 /* register callback with cpr framework */
7203 7203 void
7204 7204 hubd_register_cpr_callback(hubd_t *hubd)
7205 7205 {
7206 7206 USB_DPRINTF_L4(DPRINT_MASK_EVENTS, hubd->h_log_handle,
7207 7207 "hubd_register_cpr_callback");
7208 7208
7209 7209 mutex_enter(HUBD_MUTEX(hubd));
7210 7210 hubd->h_cpr_cb =
7211 7211 (hubd_cpr_t *)kmem_zalloc(sizeof (hubd_cpr_t), KM_SLEEP);
7212 7212 mutex_exit(HUBD_MUTEX(hubd));
7213 7213 mutex_init(&hubd->h_cpr_cb->lockp, NULL, MUTEX_DRIVER,
7214 7214 hubd->h_dev_data->dev_iblock_cookie);
7215 7215 hubd->h_cpr_cb->statep = hubd;
7216 7216 hubd->h_cpr_cb->cpr.cc_lockp = &hubd->h_cpr_cb->lockp;
7217 7217 hubd->h_cpr_cb->cpr.cc_id = callb_add(hubd_cpr_post_user_callb,
7218 7218 (void *)hubd->h_cpr_cb, CB_CL_CPR_POST_USER, "hubd");
7219 7219 }
7220 7220
7221 7221
7222 7222 /* unregister callback with cpr framework */
7223 7223 void
7224 7224 hubd_unregister_cpr_callback(hubd_t *hubd)
7225 7225 {
7226 7226 USB_DPRINTF_L4(DPRINT_MASK_EVENTS, hubd->h_log_handle,
7227 7227 "hubd_unregister_cpr_callback");
7228 7228
7229 7229 if (hubd->h_cpr_cb) {
7230 7230 (void) callb_delete(hubd->h_cpr_cb->cpr.cc_id);
7231 7231 mutex_destroy(&hubd->h_cpr_cb->lockp);
7232 7232 mutex_enter(HUBD_MUTEX(hubd));
7233 7233 kmem_free(hubd->h_cpr_cb, sizeof (hubd_cpr_t));
7234 7234 mutex_exit(HUBD_MUTEX(hubd));
7235 7235 }
7236 7236 }
7237 7237
7238 7238
7239 7239 /*
7240 7240 * Power management
7241 7241 *
7242 7242 * create the pm components required for power management
7243 7243 */
7244 7244 static void
7245 7245 hubd_create_pm_components(dev_info_t *dip, hubd_t *hubd)
7246 7246 {
7247 7247 hub_power_t *hubpm;
7248 7248
7249 7249 USB_DPRINTF_L4(DPRINT_MASK_PM, hubd->h_log_handle,
7250 7250 "hubd_create_pm_components: Begin");
7251 7251
7252 7252 /* Allocate the state structure */
7253 7253 hubpm = kmem_zalloc(sizeof (hub_power_t), KM_SLEEP);
7254 7254
7255 7255 hubd->h_hubpm = hubpm;
7256 7256 hubpm->hubp_hubd = hubd;
7257 7257 hubpm->hubp_pm_capabilities = 0;
7258 7258 hubpm->hubp_current_power = USB_DEV_OS_FULL_PWR;
7259 7259 hubpm->hubp_time_at_full_power = gethrtime();
7260 7260 hubpm->hubp_min_pm_threshold = hubdi_min_pm_threshold * NANOSEC;
7261 7261
7262 7262 /* alloc memory to save power states of children */
7263 7263 hubpm->hubp_child_pwrstate = (uint8_t *)
7264 7264 kmem_zalloc(MAX_PORTS + 1, KM_SLEEP);
7265 7265
7266 7266 /*
7267 7267 * if the enable remote wakeup fails
7268 7268 * we still want to enable
7269 7269 * parent notification so we can PM the children
7270 7270 */
7271 7271 usb_enable_parent_notification(dip);
7272 7272
7273 7273 if (usb_handle_remote_wakeup(dip,
7274 7274 USB_REMOTE_WAKEUP_ENABLE) == USB_SUCCESS) {
7275 7275 uint_t pwr_states;
7276 7276
7277 7277 USB_DPRINTF_L2(DPRINT_MASK_PM, hubd->h_log_handle,
7278 7278 "hubd_create_pm_components: "
7279 7279 "Remote Wakeup Enabled");
7280 7280
7281 7281 if (usb_create_pm_components(dip, &pwr_states) ==
7282 7282 USB_SUCCESS) {
7283 7283 mutex_enter(HUBD_MUTEX(hubd));
7284 7284 hubpm->hubp_wakeup_enabled = 1;
7285 7285 hubpm->hubp_pwr_states = (uint8_t)pwr_states;
7286 7286
7287 7287 /* we are busy now till end of the attach */
7288 7288 hubd_pm_busy_component(hubd, dip, 0);
7289 7289 mutex_exit(HUBD_MUTEX(hubd));
7290 7290
7291 7291 /* bring the device to full power */
7292 7292 (void) pm_raise_power(dip, 0,
7293 7293 USB_DEV_OS_FULL_PWR);
7294 7294 }
7295 7295 }
7296 7296
7297 7297 USB_DPRINTF_L4(DPRINT_MASK_PM, hubd->h_log_handle,
7298 7298 "hubd_create_pm_components: END");
7299 7299 }
7300 7300
7301 7301
7302 7302 /*
7303 7303 * Attachment point management
7304 7304 */
7305 7305 /* ARGSUSED */
7306 7306 int
7307 7307 usba_hubdi_open(dev_info_t *dip, dev_t *devp, int flags, int otyp,
7308 7308 cred_t *credp)
7309 7309 {
7310 7310 hubd_t *hubd;
7311 7311
7312 7312 if (otyp != OTYP_CHR)
7313 7313 return (EINVAL);
7314 7314
7315 7315 hubd = hubd_get_soft_state(dip);
7316 7316 if (hubd == NULL) {
7317 7317 return (ENXIO);
7318 7318 }
7319 7319
7320 7320 USB_DPRINTF_L4(DPRINT_MASK_CBOPS, hubd->h_log_handle,
7321 7321 "hubd_open:");
7322 7322
7323 7323 mutex_enter(HUBD_MUTEX(hubd));
7324 7324 if ((flags & FEXCL) && (hubd->h_softstate & HUBD_SS_ISOPEN)) {
7325 7325 mutex_exit(HUBD_MUTEX(hubd));
7326 7326
7327 7327 return (EBUSY);
7328 7328 }
7329 7329
7330 7330 hubd->h_softstate |= HUBD_SS_ISOPEN;
7331 7331 mutex_exit(HUBD_MUTEX(hubd));
7332 7332
7333 7333 USB_DPRINTF_L4(DPRINT_MASK_CBOPS, hubd->h_log_handle, "opened");
7334 7334
7335 7335 return (0);
7336 7336 }
7337 7337
7338 7338
7339 7339 /* ARGSUSED */
7340 7340 int
7341 7341 usba_hubdi_close(dev_info_t *dip, dev_t dev, int flag, int otyp,
7342 7342 cred_t *credp)
7343 7343 {
7344 7344 hubd_t *hubd;
7345 7345
7346 7346 if (otyp != OTYP_CHR) {
7347 7347 return (EINVAL);
7348 7348 }
7349 7349
7350 7350 hubd = hubd_get_soft_state(dip);
7351 7351
7352 7352 if (hubd == NULL) {
7353 7353 return (ENXIO);
7354 7354 }
7355 7355
7356 7356 USB_DPRINTF_L4(DPRINT_MASK_CBOPS, hubd->h_log_handle, "hubd_close:");
7357 7357
7358 7358 mutex_enter(HUBD_MUTEX(hubd));
7359 7359 hubd->h_softstate &= ~HUBD_SS_ISOPEN;
7360 7360 mutex_exit(HUBD_MUTEX(hubd));
7361 7361
7362 7362 USB_DPRINTF_L4(DPRINT_MASK_CBOPS, hubd->h_log_handle, "closed");
7363 7363
7364 7364 return (0);
7365 7365 }
7366 7366
7367 7367
7368 7368 /*
7369 7369 * hubd_ioctl: cfgadm controls
7370 7370 */
7371 7371 /* ARGSUSED */
7372 7372 int
7373 7373 usba_hubdi_ioctl(dev_info_t *self, dev_t dev, int cmd, intptr_t arg,
7374 7374 int mode, cred_t *credp, int *rvalp)
7375 7375 {
7376 7376 int rv = 0;
7377 7377 char *msg; /* for messages */
7378 7378 hubd_t *hubd;
7379 7379 usb_port_t port = 0;
7380 7380 dev_info_t *child_dip = NULL;
7381 7381 dev_info_t *rh_dip;
7382 7382 devctl_ap_state_t ap_state;
7383 7383 struct devctl_iocdata *dcp = NULL;
7384 7384 usb_pipe_state_t prev_pipe_state = 0;
7385 7385 int circ, rh_circ, prh_circ;
7386 7386
7387 7387 if ((hubd = hubd_get_soft_state(self)) == NULL) {
7388 7388
7389 7389 return (ENXIO);
7390 7390 }
7391 7391
7392 7392 rh_dip = hubd->h_usba_device->usb_root_hub_dip;
7393 7393
7394 7394 USB_DPRINTF_L4(DPRINT_MASK_CBOPS, hubd->h_log_handle,
7395 7395 "usba_hubdi_ioctl: "
7396 7396 "cmd=%x, arg=%lx, mode=%x, cred=%p, rval=%p dev=0x%lx",
7397 7397 cmd, arg, mode, (void *)credp, (void *)rvalp, dev);
7398 7398
7399 7399 /* read devctl ioctl data */
7400 7400 if ((cmd != DEVCTL_AP_CONTROL) &&
7401 7401 (ndi_dc_allochdl((void *)arg, &dcp) != NDI_SUCCESS)) {
7402 7402
7403 7403 return (EFAULT);
7404 7404 }
7405 7405
7406 7406 /*
7407 7407 * make sure the hub is connected before trying any
7408 7408 * of the following operations:
7409 7409 * configure, connect, disconnect
7410 7410 */
7411 7411 mutex_enter(HUBD_MUTEX(hubd));
7412 7412
7413 7413 switch (cmd) {
7414 7414 case DEVCTL_AP_DISCONNECT:
7415 7415 case DEVCTL_AP_UNCONFIGURE:
7416 7416 case DEVCTL_AP_CONFIGURE:
7417 7417 if (hubd->h_dev_state == USB_DEV_DISCONNECTED) {
7418 7418 USB_DPRINTF_L2(DPRINT_MASK_ATTA, hubd->h_log_handle,
7419 7419 "hubd: already gone");
7420 7420 mutex_exit(HUBD_MUTEX(hubd));
7421 7421 if (dcp) {
7422 7422 ndi_dc_freehdl(dcp);
7423 7423 }
7424 7424
7425 7425 return (EIO);
7426 7426 }
7427 7427
7428 7428 /* FALLTHROUGH */
7429 7429 case DEVCTL_AP_GETSTATE:
7430 7430 if ((port = hubd_get_port_num(hubd, dcp)) == 0) {
7431 7431 USB_DPRINTF_L2(DPRINT_MASK_ATTA, hubd->h_log_handle,
7432 7432 "hubd: bad port");
7433 7433 mutex_exit(HUBD_MUTEX(hubd));
7434 7434 if (dcp) {
7435 7435 ndi_dc_freehdl(dcp);
7436 7436 }
7437 7437
7438 7438 return (EINVAL);
7439 7439 }
7440 7440 break;
7441 7441
7442 7442 case DEVCTL_AP_CONTROL:
7443 7443
7444 7444 break;
7445 7445 default:
7446 7446 mutex_exit(HUBD_MUTEX(hubd));
7447 7447 if (dcp) {
7448 7448 ndi_dc_freehdl(dcp);
7449 7449 }
7450 7450
7451 7451 return (ENOTTY);
7452 7452 }
7453 7453
7454 7454 /* should not happen, just in case */
7455 7455 if (hubd->h_dev_state == USB_DEV_SUSPENDED) {
7456 7456 mutex_exit(HUBD_MUTEX(hubd));
7457 7457 if (dcp) {
7458 7458 ndi_dc_freehdl(dcp);
7459 7459 }
7460 7460
7461 7461 return (EIO);
7462 7462 }
7463 7463
7464 7464 if (hubd->h_reset_port[port]) {
7465 7465 USB_DPRINTF_L2(DPRINT_MASK_CBOPS, hubd->h_log_handle,
7466 7466 "This port is resetting, just return");
7467 7467 mutex_exit(HUBD_MUTEX(hubd));
7468 7468 if (dcp) {
7469 7469 ndi_dc_freehdl(dcp);
7470 7470 }
7471 7471
7472 7472 return (EIO);
7473 7473 }
7474 7474
7475 7475 hubd_pm_busy_component(hubd, hubd->h_dip, 0);
7476 7476 mutex_exit(HUBD_MUTEX(hubd));
7477 7477
7478 7478 /* go full power */
7479 7479 (void) pm_raise_power(hubd->h_dip, 0, USB_DEV_OS_FULL_PWR);
7480 7480
7481 7481 ndi_devi_enter(ddi_get_parent(rh_dip), &prh_circ);
7482 7482 ndi_devi_enter(rh_dip, &rh_circ);
7483 7483 ndi_devi_enter(hubd->h_dip, &circ);
7484 7484
7485 7485 mutex_enter(HUBD_MUTEX(hubd));
7486 7486
7487 7487 hubd->h_hotplug_thread++;
7488 7488
7489 7489 /* stop polling if it was active */
7490 7490 if (hubd->h_ep1_ph) {
7491 7491 mutex_exit(HUBD_MUTEX(hubd));
7492 7492 (void) usb_pipe_get_state(hubd->h_ep1_ph, &prev_pipe_state,
7493 7493 USB_FLAGS_SLEEP);
7494 7494 mutex_enter(HUBD_MUTEX(hubd));
7495 7495
7496 7496 if (prev_pipe_state == USB_PIPE_STATE_ACTIVE) {
7497 7497 hubd_stop_polling(hubd);
7498 7498 }
7499 7499 }
7500 7500
7501 7501 switch (cmd) {
7502 7502 case DEVCTL_AP_DISCONNECT:
7503 7503 if (hubd_delete_child(hubd, port,
7504 7504 NDI_DEVI_REMOVE, B_FALSE) != USB_SUCCESS) {
7505 7505 rv = EIO;
7506 7506 }
7507 7507
7508 7508 break;
7509 7509 case DEVCTL_AP_UNCONFIGURE:
7510 7510 if (hubd_delete_child(hubd, port,
7511 7511 NDI_UNCONFIG, B_FALSE) != USB_SUCCESS) {
7512 7512 rv = EIO;
7513 7513 }
7514 7514
7515 7515 break;
7516 7516 case DEVCTL_AP_CONFIGURE:
7517 7517 /* toggle port */
7518 7518 if (hubd_toggle_port(hubd, port) != USB_SUCCESS) {
7519 7519 rv = EIO;
7520 7520
7521 7521 break;
7522 7522 }
7523 7523
7524 7524 (void) hubd_handle_port_connect(hubd, port);
7525 7525 child_dip = hubd_get_child_dip(hubd, port);
7526 7526 mutex_exit(HUBD_MUTEX(hubd));
7527 7527
7528 7528 ndi_devi_exit(hubd->h_dip, circ);
7529 7529 ndi_devi_exit(rh_dip, rh_circ);
7530 7530 ndi_devi_exit(ddi_get_parent(rh_dip), prh_circ);
7531 7531 if (child_dip == NULL) {
7532 7532 rv = EIO;
7533 7533 } else {
7534 7534 ndi_hold_devi(child_dip);
7535 7535 if (ndi_devi_online(child_dip, 0) != NDI_SUCCESS)
7536 7536 rv = EIO;
7537 7537 ndi_rele_devi(child_dip);
7538 7538 }
7539 7539 ndi_devi_enter(ddi_get_parent(rh_dip), &prh_circ);
7540 7540 ndi_devi_enter(rh_dip, &rh_circ);
7541 7541 ndi_devi_enter(hubd->h_dip, &circ);
7542 7542
7543 7543 mutex_enter(HUBD_MUTEX(hubd));
7544 7544
7545 7545 break;
7546 7546 case DEVCTL_AP_GETSTATE:
7547 7547 switch (hubd_cfgadm_state(hubd, port)) {
7548 7548 case HUBD_CFGADM_DISCONNECTED:
7549 7549 /* port previously 'disconnected' by cfgadm */
7550 7550 ap_state.ap_rstate = AP_RSTATE_DISCONNECTED;
7551 7551 ap_state.ap_ostate = AP_OSTATE_UNCONFIGURED;
7552 7552 ap_state.ap_condition = AP_COND_OK;
7553 7553
7554 7554 break;
7555 7555 case HUBD_CFGADM_UNCONFIGURED:
7556 7556 ap_state.ap_rstate = AP_RSTATE_CONNECTED;
7557 7557 ap_state.ap_ostate = AP_OSTATE_UNCONFIGURED;
7558 7558 ap_state.ap_condition = AP_COND_OK;
7559 7559
7560 7560 break;
7561 7561 case HUBD_CFGADM_CONFIGURED:
7562 7562 ap_state.ap_rstate = AP_RSTATE_CONNECTED;
7563 7563 ap_state.ap_ostate = AP_OSTATE_CONFIGURED;
7564 7564 ap_state.ap_condition = AP_COND_OK;
7565 7565
7566 7566 break;
7567 7567 case HUBD_CFGADM_STILL_REFERENCED:
7568 7568 ap_state.ap_rstate = AP_RSTATE_EMPTY;
7569 7569 ap_state.ap_ostate = AP_OSTATE_CONFIGURED;
7570 7570 ap_state.ap_condition = AP_COND_UNUSABLE;
7571 7571
7572 7572 break;
7573 7573 case HUBD_CFGADM_EMPTY:
7574 7574 default:
7575 7575 ap_state.ap_rstate = AP_RSTATE_EMPTY;
7576 7576 ap_state.ap_ostate = AP_OSTATE_UNCONFIGURED;
7577 7577 ap_state.ap_condition = AP_COND_OK;
7578 7578
7579 7579 break;
7580 7580 }
7581 7581
7582 7582 ap_state.ap_last_change = (time_t)-1;
7583 7583 ap_state.ap_error_code = 0;
7584 7584 ap_state.ap_in_transition = 0;
7585 7585
7586 7586 USB_DPRINTF_L4(DPRINT_MASK_CBOPS, hubd->h_log_handle,
7587 7587 "DEVCTL_AP_GETSTATE: "
7588 7588 "ostate=0x%x, rstate=0x%x, condition=0x%x",
7589 7589 ap_state.ap_ostate,
7590 7590 ap_state.ap_rstate, ap_state.ap_condition);
7591 7591
7592 7592 /* copy the return-AP-state information to the user space */
7593 7593 if (ndi_dc_return_ap_state(&ap_state, dcp) != NDI_SUCCESS) {
7594 7594 rv = EFAULT;
7595 7595 }
7596 7596
7597 7597 break;
7598 7598 case DEVCTL_AP_CONTROL:
7599 7599 {
7600 7600 /*
7601 7601 * Generic devctl for hardware-specific functionality.
7602 7602 * For list of sub-commands see hubd_impl.h
7603 7603 */
7604 7604 hubd_ioctl_data_t ioc; /* for 64 byte copies */
7605 7605
7606 7606 /* copy user ioctl data in first */
7607 7607 #ifdef _MULTI_DATAMODEL
7608 7608 if (ddi_model_convert_from(mode & FMODELS) == DDI_MODEL_ILP32) {
7609 7609 hubd_ioctl_data_32_t ioc32;
7610 7610
7611 7611 if (ddi_copyin((void *)arg, (void *)&ioc32,
7612 7612 sizeof (ioc32), mode) != 0) {
7613 7613 rv = EFAULT;
7614 7614
7615 7615 break;
7616 7616 }
7617 7617 ioc.cmd = (uint_t)ioc32.cmd;
7618 7618 ioc.port = (uint_t)ioc32.port;
7619 7619 ioc.get_size = (uint_t)ioc32.get_size;
7620 7620 ioc.buf = (caddr_t)(uintptr_t)ioc32.buf;
7621 7621 ioc.bufsiz = (uint_t)ioc32.bufsiz;
7622 7622 ioc.misc_arg = (uint_t)ioc32.misc_arg;
7623 7623 } else
7624 7624 #endif /* _MULTI_DATAMODEL */
7625 7625 if (ddi_copyin((void *)arg, (void *)&ioc, sizeof (ioc),
7626 7626 mode) != 0) {
7627 7627 rv = EFAULT;
7628 7628
7629 7629 break;
7630 7630 }
7631 7631
7632 7632 USB_DPRINTF_L3(DPRINT_MASK_CBOPS, hubd->h_log_handle,
7633 7633 "DEVCTL_AP_CONTROL: ioc: cmd=0x%x port=%d get_size=%d"
7634 7634 "\n\tbuf=0x%p, bufsiz=%d, misc_arg=%d", ioc.cmd,
7635 7635 ioc.port, ioc.get_size, (void *)ioc.buf, ioc.bufsiz,
7636 7636 ioc.misc_arg);
7637 7637
7638 7638 /*
7639 7639 * To avoid BE/LE and 32/64 issues, a get_size always
7640 7640 * returns a 32-bit number.
7641 7641 */
7642 7642 if (ioc.get_size != 0 && ioc.bufsiz != (sizeof (uint32_t))) {
7643 7643 rv = EINVAL;
7644 7644
7645 7645 break;
7646 7646 }
7647 7647
7648 7648 switch (ioc.cmd) {
7649 7649 case USB_DESCR_TYPE_DEV:
7650 7650 msg = "DEVCTL_AP_CONTROL: GET_DEVICE_DESC";
7651 7651 if (ioc.get_size) {
7652 7652 /* uint32 so this works 32/64 */
7653 7653 uint32_t size = sizeof (usb_dev_descr_t);
7654 7654
7655 7655 if (ddi_copyout((void *)&size, ioc.buf,
7656 7656 ioc.bufsiz, mode) != 0) {
7657 7657 USB_DPRINTF_L2(DPRINT_MASK_CBOPS,
7658 7658 hubd->h_log_handle,
7659 7659 "%s: get_size copyout failed", msg);
7660 7660 rv = EIO;
7661 7661
7662 7662 break;
7663 7663 }
7664 7664 } else { /* send out the actual descr */
7665 7665 usb_dev_descr_t *dev_descrp;
7666 7666
7667 7667 /* check child_dip */
7668 7668 if ((child_dip = hubd_get_child_dip(hubd,
7669 7669 ioc.port)) == NULL) {
7670 7670 rv = EINVAL;
7671 7671
7672 7672 break;
7673 7673 }
7674 7674
7675 7675 dev_descrp = usb_get_dev_descr(child_dip);
7676 7676 if (ioc.bufsiz != sizeof (*dev_descrp)) {
7677 7677 USB_DPRINTF_L2(DPRINT_MASK_CBOPS,
7678 7678 hubd->h_log_handle,
7679 7679 "%s: bufsize passed (%d) != sizeof "
7680 7680 "usba_device_descr_t (%d)", msg,
7681 7681 ioc.bufsiz, dev_descrp->bLength);
7682 7682 rv = EINVAL;
7683 7683
7684 7684 break;
7685 7685 }
7686 7686
7687 7687 if (ddi_copyout((void *)dev_descrp,
7688 7688 ioc.buf, ioc.bufsiz, mode) != 0) {
7689 7689 USB_DPRINTF_L2(DPRINT_MASK_CBOPS,
7690 7690 hubd->h_log_handle,
7691 7691 "%s: copyout failed.", msg);
7692 7692 rv = EIO;
7693 7693
7694 7694 break;
7695 7695 }
7696 7696 }
7697 7697 break;
7698 7698 case USB_DESCR_TYPE_STRING:
7699 7699 {
7700 7700 char *str;
7701 7701 uint32_t size;
7702 7702 usba_device_t *usba_device;
7703 7703
7704 7704 msg = "DEVCTL_AP_CONTROL: GET_STRING_DESCR";
7705 7705 USB_DPRINTF_L4(DPRINT_MASK_CBOPS, hubd->h_log_handle,
7706 7706 "%s: string request: %d", msg, ioc.misc_arg);
7707 7707
7708 7708 /* recheck */
7709 7709 if ((child_dip = hubd_get_child_dip(hubd, ioc.port)) ==
7710 7710 NULL) {
7711 7711 rv = EINVAL;
7712 7712
7713 7713 break;
7714 7714 }
7715 7715 usba_device = usba_get_usba_device(child_dip);
7716 7716
7717 7717 switch (ioc.misc_arg) {
7718 7718 case HUBD_MFG_STR:
7719 7719 str = usba_device->usb_mfg_str;
7720 7720
7721 7721 break;
7722 7722 case HUBD_PRODUCT_STR:
7723 7723 str = usba_device->usb_product_str;
7724 7724
7725 7725 break;
7726 7726 case HUBD_SERIALNO_STR:
7727 7727 str = usba_device->usb_serialno_str;
7728 7728
7729 7729 break;
7730 7730 case HUBD_CFG_DESCR_STR:
7731 7731 mutex_enter(&usba_device->usb_mutex);
7732 7732 str = usba_device->usb_cfg_str_descr[
7733 7733 usba_device->usb_active_cfg_ndx];
7734 7734 mutex_exit(&usba_device->usb_mutex);
7735 7735
7736 7736 break;
7737 7737 default:
7738 7738 USB_DPRINTF_L2(DPRINT_MASK_CBOPS,
7739 7739 hubd->h_log_handle,
7740 7740 "%s: Invalid string request", msg);
7741 7741 rv = EINVAL;
7742 7742
7743 7743 break;
7744 7744 } /* end of switch */
7745 7745
7746 7746 if (rv != 0) {
7747 7747
7748 7748 break;
7749 7749 }
7750 7750
7751 7751 size = (str != NULL) ? strlen(str) + 1 : 0;
7752 7752 if (ioc.get_size) {
7753 7753 if (ddi_copyout((void *)&size, ioc.buf,
7754 7754 ioc.bufsiz, mode) != 0) {
7755 7755 USB_DPRINTF_L2(DPRINT_MASK_CBOPS,
7756 7756 hubd->h_log_handle,
7757 7757 "%s: copyout of size failed.", msg);
7758 7758 rv = EIO;
7759 7759
7760 7760 break;
7761 7761 }
7762 7762 } else {
7763 7763 if (size == 0) {
7764 7764 USB_DPRINTF_L3(DPRINT_MASK_CBOPS,
7765 7765 hubd->h_log_handle,
7766 7766 "%s: String is NULL", msg);
7767 7767 rv = EINVAL;
7768 7768
7769 7769 break;
7770 7770 }
7771 7771
7772 7772 if (ioc.bufsiz != size) {
7773 7773 USB_DPRINTF_L2(DPRINT_MASK_CBOPS,
7774 7774 hubd->h_log_handle,
7775 7775 "%s: string buf size wrong", msg);
7776 7776 rv = EINVAL;
7777 7777
7778 7778 break;
7779 7779 }
7780 7780
7781 7781 if (ddi_copyout((void *)str, ioc.buf,
7782 7782 ioc.bufsiz, mode) != 0) {
7783 7783 USB_DPRINTF_L2(DPRINT_MASK_CBOPS,
7784 7784 hubd->h_log_handle,
7785 7785 "%s: copyout failed.", msg);
7786 7786 rv = EIO;
7787 7787
7788 7788 break;
7789 7789 }
7790 7790 }
7791 7791 break;
7792 7792 }
7793 7793 case HUBD_GET_CFGADM_NAME:
7794 7794 {
7795 7795 uint32_t name_len;
7796 7796 const char *name;
7797 7797
7798 7798 /* recheck */
7799 7799 if ((child_dip = hubd_get_child_dip(hubd, ioc.port)) ==
7800 7800 NULL) {
7801 7801 rv = EINVAL;
7802 7802
7803 7803 break;
7804 7804 }
7805 7805 name = ddi_node_name(child_dip);
7806 7806 if (name == NULL) {
7807 7807 name = "unsupported";
7808 7808 }
7809 7809 name_len = strlen(name) + 1;
7810 7810
7811 7811 msg = "DEVCTL_AP_CONTROL: HUBD_GET_CFGADM_NAME";
7812 7812 USB_DPRINTF_L4(DPRINT_MASK_CBOPS, hubd->h_log_handle,
7813 7813 "%s: name=%s name_len=%d", msg, name, name_len);
7814 7814
7815 7815 if (ioc.get_size) {
7816 7816 if (ddi_copyout((void *)&name_len,
7817 7817 ioc.buf, ioc.bufsiz, mode) != 0) {
7818 7818 USB_DPRINTF_L2(DPRINT_MASK_CBOPS,
7819 7819 hubd->h_log_handle,
7820 7820 "%s: copyout of size failed", msg);
7821 7821 rv = EIO;
7822 7822
7823 7823 break;
7824 7824 }
7825 7825 } else {
7826 7826 if (ioc.bufsiz != name_len) {
7827 7827 USB_DPRINTF_L2(DPRINT_MASK_CBOPS,
7828 7828 hubd->h_log_handle,
7829 7829 "%s: string buf length wrong", msg);
7830 7830 rv = EINVAL;
7831 7831
7832 7832 break;
7833 7833 }
7834 7834
7835 7835 if (ddi_copyout((void *)name, ioc.buf,
7836 7836 ioc.bufsiz, mode) != 0) {
7837 7837 USB_DPRINTF_L2(DPRINT_MASK_CBOPS,
7838 7838 hubd->h_log_handle,
7839 7839 "%s: copyout failed.", msg);
7840 7840 rv = EIO;
7841 7841
7842 7842 break;
7843 7843 }
7844 7844 }
7845 7845
7846 7846 break;
7847 7847 }
7848 7848
7849 7849 /*
7850 7850 * Return the config index for the currently-configured
7851 7851 * configuration.
7852 7852 */
7853 7853 case HUBD_GET_CURRENT_CONFIG:
7854 7854 {
7855 7855 uint_t config_index;
7856 7856 uint32_t size = sizeof (config_index);
7857 7857 usba_device_t *usba_device;
7858 7858
7859 7859 msg = "DEVCTL_AP_CONTROL: GET_CURRENT_CONFIG";
7860 7860 USB_DPRINTF_L4(DPRINT_MASK_CBOPS, hubd->h_log_handle,
7861 7861 "%s", msg);
7862 7862
7863 7863 /*
7864 7864 * Return the config index for the configuration
7865 7865 * currently in use.
7866 7866 * Recheck if child_dip exists
7867 7867 */
7868 7868 if ((child_dip = hubd_get_child_dip(hubd, ioc.port)) ==
7869 7869 NULL) {
7870 7870 rv = EINVAL;
7871 7871
7872 7872 break;
7873 7873 }
7874 7874
7875 7875 usba_device = usba_get_usba_device(child_dip);
7876 7876 mutex_enter(&usba_device->usb_mutex);
7877 7877 config_index = usba_device->usb_active_cfg_ndx;
7878 7878 mutex_exit(&usba_device->usb_mutex);
7879 7879
7880 7880 if (ioc.get_size) {
7881 7881 if (ddi_copyout((void *)&size,
7882 7882 ioc.buf, ioc.bufsiz, mode) != 0) {
7883 7883 USB_DPRINTF_L2(DPRINT_MASK_CBOPS,
7884 7884 hubd->h_log_handle,
7885 7885 "%s: copyout of size failed.", msg);
7886 7886 rv = EIO;
7887 7887
7888 7888 break;
7889 7889 }
7890 7890 } else {
7891 7891 if (ioc.bufsiz != size) {
7892 7892 USB_DPRINTF_L2(DPRINT_MASK_CBOPS,
7893 7893 hubd->h_log_handle,
7894 7894 "%s: buffer size wrong", msg);
7895 7895 rv = EINVAL;
7896 7896
7897 7897 break;
7898 7898 }
7899 7899 if (ddi_copyout((void *)&config_index,
7900 7900 ioc.buf, ioc.bufsiz, mode) != 0) {
7901 7901 USB_DPRINTF_L2(DPRINT_MASK_CBOPS,
7902 7902 hubd->h_log_handle,
7903 7903 "%s: copyout failed", msg);
7904 7904 rv = EIO;
7905 7905 }
7906 7906 }
7907 7907
7908 7908 break;
7909 7909 }
7910 7910 case HUBD_GET_DEVICE_PATH:
7911 7911 {
7912 7912 char *path;
7913 7913 uint32_t size;
7914 7914
7915 7915 msg = "DEVCTL_AP_CONTROL: GET_DEVICE_PATH";
7916 7916 USB_DPRINTF_L4(DPRINT_MASK_CBOPS, hubd->h_log_handle,
7917 7917 "%s", msg);
7918 7918
7919 7919 /* Recheck if child_dip exists */
7920 7920 if ((child_dip = hubd_get_child_dip(hubd, ioc.port)) ==
7921 7921 NULL) {
7922 7922 rv = EINVAL;
7923 7923
7924 7924 break;
7925 7925 }
7926 7926
7927 7927 /* ddi_pathname doesn't supply /devices, so we do. */
7928 7928 path = kmem_alloc(MAXPATHLEN, KM_SLEEP);
7929 7929 (void) strcpy(path, "/devices");
7930 7930 (void) ddi_pathname(child_dip, path + strlen(path));
7931 7931 size = strlen(path) + 1;
7932 7932
7933 7933 USB_DPRINTF_L4(DPRINT_MASK_CBOPS, hubd->h_log_handle,
7934 7934 "%s: device path=%s size=%d", msg, path, size);
7935 7935
7936 7936 if (ioc.get_size) {
7937 7937 if (ddi_copyout((void *)&size,
7938 7938 ioc.buf, ioc.bufsiz, mode) != 0) {
7939 7939
7940 7940 USB_DPRINTF_L2(DPRINT_MASK_CBOPS,
7941 7941 hubd->h_log_handle,
7942 7942 "%s: copyout of size failed.", msg);
7943 7943 rv = EIO;
7944 7944 }
7945 7945 } else {
7946 7946 if (ioc.bufsiz != size) {
7947 7947 USB_DPRINTF_L2(DPRINT_MASK_CBOPS,
7948 7948 hubd->h_log_handle,
7949 7949 "%s: buffer wrong size.", msg);
7950 7950 rv = EINVAL;
7951 7951 } else if (ddi_copyout((void *)path,
7952 7952 ioc.buf, ioc.bufsiz, mode) != 0) {
7953 7953 USB_DPRINTF_L2(DPRINT_MASK_CBOPS,
7954 7954 hubd->h_log_handle,
7955 7955 "%s: copyout failed.", msg);
7956 7956 rv = EIO;
7957 7957 }
7958 7958 }
7959 7959 kmem_free(path, MAXPATHLEN);
7960 7960
7961 7961 break;
7962 7962 }
7963 7963 case HUBD_REFRESH_DEVDB:
7964 7964 msg = "DEVCTL_AP_CONTROL: HUBD_REFRESH_DEVDB";
7965 7965 USB_DPRINTF_L3(DPRINT_MASK_CBOPS, hubd->h_log_handle,
7966 7966 "%s", msg);
7967 7967
7968 7968 if ((rv = usba_devdb_refresh()) != USB_SUCCESS) {
7969 7969 USB_DPRINTF_L2(DPRINT_MASK_CBOPS,
7970 7970 hubd->h_log_handle,
7971 7971 "%s: Failed: %d", msg, rv);
7972 7972 rv = EIO;
7973 7973 }
7974 7974
7975 7975 break;
7976 7976 default:
7977 7977 rv = ENOTSUP;
7978 7978 } /* end switch */
7979 7979
7980 7980 break;
7981 7981 }
7982 7982
7983 7983 default:
7984 7984 rv = ENOTTY;
7985 7985 }
7986 7986
7987 7987 if (dcp) {
7988 7988 ndi_dc_freehdl(dcp);
7989 7989 }
7990 7990
7991 7991 /* allow hotplug thread now */
7992 7992 hubd->h_hotplug_thread--;
7993 7993
7994 7994 if ((hubd->h_dev_state == USB_DEV_ONLINE) &&
7995 7995 hubd->h_ep1_ph && (prev_pipe_state == USB_PIPE_STATE_ACTIVE)) {
7996 7996 hubd_start_polling(hubd, 0);
7997 7997 }
7998 7998 mutex_exit(HUBD_MUTEX(hubd));
7999 7999
8000 8000 ndi_devi_exit(hubd->h_dip, circ);
8001 8001 ndi_devi_exit(rh_dip, rh_circ);
8002 8002 ndi_devi_exit(ddi_get_parent(rh_dip), prh_circ);
8003 8003
8004 8004 mutex_enter(HUBD_MUTEX(hubd));
8005 8005 hubd_pm_idle_component(hubd, hubd->h_dip, 0);
8006 8006 mutex_exit(HUBD_MUTEX(hubd));
8007 8007
8008 8008 return (rv);
8009 8009 }
8010 8010
8011 8011
8012 8012 /*
8013 8013 * Helper func used only to help construct the names for the attachment point
8014 8014 * minor nodes. Used only in usba_hubdi_attach.
8015 8015 * Returns whether it found ancestry or not (USB_SUCCESS if yes).
8016 8016 * ports between the root hub and the device represented by dip.
8017 8017 * E.g., "2.4.3.1" means this device is
8018 8018 * plugged into port 1 of a hub that is
8019 8019 * plugged into port 3 of a hub that is
8020 8020 * plugged into port 4 of a hub that is
8021 8021 * plugged into port 2 of the root hub.
8022 8022 * NOTE: Max ap_id path len is HUBD_APID_NAMELEN (32 chars), which is
8023 8023 * more than sufficient (as hubs are a max 6 levels deep, port needs 3
8024 8024 * chars plus NULL each)
8025 8025 */
8026 8026 void
8027 8027 hubd_get_ancestry_str(hubd_t *hubd)
8028 8028 {
8029 8029 char ap_name[HUBD_APID_NAMELEN];
8030 8030 dev_info_t *pdip;
8031 8031 hubd_t *phubd;
8032 8032 usb_port_t port;
8033 8033
8034 8034 USB_DPRINTF_L4(DPRINT_MASK_ATTA, hubd->h_log_handle,
8035 8035 "hubd_get_ancestry_str: hubd=0x%p", (void *)hubd);
8036 8036
8037 8037 ASSERT(mutex_owned(HUBD_MUTEX(hubd)));
8038 8038
8039 8039 /*
8040 8040 * The function is extended to support wire adapter class
8041 8041 * devices introduced by WUSB spec. The node name is no
8042 8042 * longer "hub" only.
8043 8043 * Generate the ap_id str based on the parent and child
8044 8044 * relationship instead of retrieving it from the hub
8045 8045 * device path, which simplifies the algorithm.
8046 8046 */
8047 8047 if (usba_is_root_hub(hubd->h_dip)) {
8048 8048 hubd->h_ancestry_str[0] = '\0';
8049 8049 } else {
8050 8050 port = hubd->h_usba_device->usb_port;
8051 8051 mutex_exit(HUBD_MUTEX(hubd));
8052 8052
8053 8053 pdip = ddi_get_parent(hubd->h_dip);
8054 8054 /*
8055 8055 * The parent of wire adapter device might be usb_mid.
8056 8056 * Need to look further up for hub device
8057 8057 */
8058 8058 if (strcmp(ddi_driver_name(pdip), "usb_mid") == 0) {
8059 8059 pdip = ddi_get_parent(pdip);
8060 8060 ASSERT(pdip != NULL);
8061 8061 }
8062 8062
8063 8063 phubd = hubd_get_soft_state(pdip);
8064 8064
8065 8065 mutex_enter(HUBD_MUTEX(phubd));
8066 8066 (void) snprintf(ap_name, HUBD_APID_NAMELEN, "%s%d",
8067 8067 phubd->h_ancestry_str, port);
8068 8068 mutex_exit(HUBD_MUTEX(phubd));
8069 8069
8070 8070 mutex_enter(HUBD_MUTEX(hubd));
8071 8071 (void) strcpy(hubd->h_ancestry_str, ap_name);
8072 8072 (void) strcat(hubd->h_ancestry_str, ".");
8073 8073 }
8074 8074 }
8075 8075
8076 8076
8077 8077 /* Get which port to operate on. */
8078 8078 static usb_port_t
8079 8079 hubd_get_port_num(hubd_t *hubd, struct devctl_iocdata *dcp)
8080 8080 {
8081 8081 int32_t port;
8082 8082
8083 8083 ASSERT(mutex_owned(HUBD_MUTEX(hubd)));
8084 8084
8085 8085 /* Get which port to operate on. */
8086 8086 if (nvlist_lookup_int32(ndi_dc_get_ap_data(dcp), "port", &port) != 0) {
8087 8087 USB_DPRINTF_L2(DPRINT_MASK_CBOPS, hubd->h_log_handle,
8088 8088 "hubd_get_port_num: port lookup failed");
8089 8089 port = 0;
8090 8090 }
8091 8091
8092 8092 USB_DPRINTF_L4(DPRINT_MASK_CBOPS, hubd->h_log_handle,
8093 8093 "hubd_get_port_num: hubd=0x%p, port=%d", (void *)hubd, port);
8094 8094
8095 8095 return ((usb_port_t)port);
8096 8096 }
8097 8097
8098 8098
8099 8099 /* check if child still exists */
8100 8100 static dev_info_t *
8101 8101 hubd_get_child_dip(hubd_t *hubd, usb_port_t port)
8102 8102 {
8103 8103 dev_info_t *child_dip = hubd->h_children_dips[port];
8104 8104
8105 8105 USB_DPRINTF_L4(DPRINT_MASK_CBOPS, hubd->h_log_handle,
8106 8106 "hubd_get_child_dip: hubd=0x%p, port=%d", (void *)hubd, port);
8107 8107
8108 8108 ASSERT(mutex_owned(HUBD_MUTEX(hubd)));
8109 8109
8110 8110 return (child_dip);
8111 8111 }
8112 8112
8113 8113
8114 8114 /*
8115 8115 * hubd_cfgadm_state:
8116 8116 *
8117 8117 * child_dip list port_state cfgadm_state
8118 8118 * -------------- ---------- ------------
8119 8119 * != NULL connected configured or
8120 8120 * unconfigured
8121 8121 * != NULL not connected disconnect but
8122 8122 * busy/still referenced
8123 8123 * NULL connected logically disconnected
8124 8124 * NULL not connected empty
8125 8125 */
8126 8126 static uint_t
8127 8127 hubd_cfgadm_state(hubd_t *hubd, usb_port_t port)
8128 8128 {
8129 8129 uint_t state;
8130 8130 dev_info_t *child_dip = hubd_get_child_dip(hubd, port);
8131 8131
8132 8132 if (child_dip) {
8133 8133 if (hubd->h_port_state[port] & PORT_STATUS_CCS) {
8134 8134 /*
8135 8135 * connected, now check if driver exists
8136 8136 */
8137 8137 if (DEVI_IS_DEVICE_OFFLINE(child_dip) ||
8138 8138 !i_ddi_devi_attached(child_dip)) {
8139 8139 state = HUBD_CFGADM_UNCONFIGURED;
8140 8140 } else {
8141 8141 state = HUBD_CFGADM_CONFIGURED;
8142 8142 }
8143 8143 } else {
8144 8144 /*
8145 8145 * this means that the dip is around for
8146 8146 * a device that is still referenced but
8147 8147 * has been yanked out. So the cfgadm info
8148 8148 * for this state should be EMPTY (port empty)
8149 8149 * and CONFIGURED (dip still valid).
8150 8150 */
8151 8151 state = HUBD_CFGADM_STILL_REFERENCED;
8152 8152 }
8153 8153 } else {
8154 8154 /* connected but no child dip */
8155 8155 if (hubd->h_port_state[port] & PORT_STATUS_CCS) {
8156 8156 /* logically disconnected */
8157 8157 state = HUBD_CFGADM_DISCONNECTED;
8158 8158 } else {
8159 8159 /* physically disconnected */
8160 8160 state = HUBD_CFGADM_EMPTY;
8161 8161 }
8162 8162 }
8163 8163
8164 8164 USB_DPRINTF_L4(DPRINT_MASK_CBOPS, hubd->h_log_handle,
8165 8165 "hubd_cfgadm_state: hubd=0x%p, port=%d state=0x%x",
8166 8166 (void *)hubd, port, state);
8167 8167
8168 8168 return (state);
8169 8169 }
8170 8170
8171 8171
8172 8172 /*
8173 8173 * hubd_toggle_port:
8174 8174 */
8175 8175 static int
8176 8176 hubd_toggle_port(hubd_t *hubd, usb_port_t port)
8177 8177 {
8178 8178 usb_hub_descr_t *hub_descr;
8179 8179 int wait;
8180 8180 uint_t retry;
8181 8181 uint16_t status;
8182 8182 uint16_t change;
8183 8183
8184 8184 USB_DPRINTF_L4(DPRINT_MASK_CBOPS, hubd->h_log_handle,
8185 8185 "hubd_toggle_port: hubd=0x%p, port=%d", (void *)hubd, port);
8186 8186
8187 8187 if ((hubd_disable_port_power(hubd, port)) != USB_SUCCESS) {
8188 8188
8189 8189 return (USB_FAILURE);
8190 8190 }
8191 8191
8192 8192 /*
8193 8193 * see hubd_enable_all_port_power() which
8194 8194 * requires longer delay for hubs.
8195 8195 */
8196 8196 mutex_exit(HUBD_MUTEX(hubd));
8197 8197 delay(drv_usectohz(hubd_device_delay / 10));
8198 8198 mutex_enter(HUBD_MUTEX(hubd));
8199 8199
8200 8200 hub_descr = &hubd->h_hub_descr;
8201 8201
8202 8202 /*
8203 8203 * According to section 11.11 of USB, for hubs with no power
8204 8204 * switches, bPwrOn2PwrGood is zero. But we wait for some
8205 8205 * arbitrary time to enable power to become stable.
8206 8206 *
8207 8207 * If an hub supports port power swicthing, we need to wait
8208 8208 * at least 20ms before accesing corresonding usb port.
8209 8209 */
8210 8210 if ((hub_descr->wHubCharacteristics &
8211 8211 HUB_CHARS_NO_POWER_SWITCHING) || (!hub_descr->bPwrOn2PwrGood)) {
8212 8212 wait = hubd_device_delay / 10;
8213 8213 } else {
8214 8214 wait = max(HUB_DEFAULT_POPG,
8215 8215 hub_descr->bPwrOn2PwrGood) * 2 * 1000;
8216 8216 }
8217 8217
8218 8218 USB_DPRINTF_L3(DPRINT_MASK_PORT, hubd->h_log_handle,
8219 8219 "hubd_toggle_port: popg=%d wait=%d",
8220 8220 hub_descr->bPwrOn2PwrGood, wait);
8221 8221
8222 8222 retry = 0;
8223 8223
8224 8224 do {
8225 8225 (void) hubd_enable_port_power(hubd, port);
8226 8226
8227 8227 mutex_exit(HUBD_MUTEX(hubd));
8228 8228 delay(drv_usectohz(wait));
8229 8229 mutex_enter(HUBD_MUTEX(hubd));
8230 8230
8231 8231 /* Get port status */
8232 8232 (void) hubd_determine_port_status(hubd, port,
8233 8233 &status, &change, 0);
8234 8234
8235 8235 /* For retry if any, use some extra delay */
8236 8236 wait = max(wait, hubd_device_delay / 10);
8237 8237
8238 8238 retry++;
8239 8239
8240 8240 } while ((!(status & PORT_STATUS_PPS)) && (retry < HUBD_PORT_RETRY));
8241 8241
8242 8242 /* Print warning message if port has no power */
8243 8243 if (!(status & PORT_STATUS_PPS)) {
8244 8244
8245 8245 USB_DPRINTF_L2(DPRINT_MASK_PORT, hubd->h_log_handle,
8246 8246 "hubd_toggle_port: port %d power-on failed, "
8247 8247 "port status 0x%x", port, status);
8248 8248
8249 8249 return (USB_FAILURE);
8250 8250 }
8251 8251
8252 8252 return (USB_SUCCESS);
8253 8253 }
8254 8254
8255 8255
8256 8256 /*
8257 8257 * hubd_init_power_budget:
8258 8258 * Init power budget variables in hubd structure. According
8259 8259 * to USB spec, the power budget rules are:
8260 8260 * 1. local-powered hubs including root-hubs can supply
8261 8261 * 500mA to each port at maximum
8262 8262 * 2. two bus-powered hubs are not allowed to concatenate
8263 8263 * 3. bus-powered hubs can supply 100mA to each port at
8264 8264 * maximum, and the power consumed by all downstream
8265 8265 * ports and the hub itself cannot exceed the max power
8266 8266 * supplied by the upstream port, i.e., 500mA
8267 8267 * The routine is only called during hub attach time
8268 8268 */
8269 8269 static int
8270 8270 hubd_init_power_budget(hubd_t *hubd)
8271 8271 {
8272 8272 uint16_t status = 0;
8273 8273 usba_device_t *hubd_ud = NULL;
8274 8274 size_t size;
8275 8275 usb_cfg_descr_t cfg_descr;
8276 8276 dev_info_t *pdip = NULL;
8277 8277 hubd_t *phubd = NULL;
8278 8278
8279 8279 if (hubd->h_ignore_pwr_budget) {
8280 8280
8281 8281 return (USB_SUCCESS);
8282 8282 }
8283 8283
8284 8284 USB_DPRINTF_L4(DPRINT_MASK_HUB, hubd->h_log_handle,
8285 8285 "hubd_init_power_budget:");
8286 8286
8287 8287 ASSERT(mutex_owned(HUBD_MUTEX(hubd)));
8288 8288 ASSERT(hubd->h_default_pipe != 0);
8289 8289 mutex_exit(HUBD_MUTEX(hubd));
8290 8290
8291 8291 /* get device status */
8292 8292 if ((usb_get_status(hubd->h_dip, hubd->h_default_pipe,
8293 8293 HUB_GET_DEVICE_STATUS_TYPE,
8294 8294 0, &status, 0)) != USB_SUCCESS) {
8295 8295 mutex_enter(HUBD_MUTEX(hubd));
8296 8296
8297 8297 return (USB_FAILURE);
8298 8298 }
8299 8299
8300 8300 hubd_ud = usba_get_usba_device(hubd->h_dip);
8301 8301
8302 8302 size = usb_parse_cfg_descr(hubd_ud->usb_cfg, hubd_ud->usb_cfg_length,
8303 8303 &cfg_descr, USB_CFG_DESCR_SIZE);
8304 8304
8305 8305 if (size != USB_CFG_DESCR_SIZE) {
8306 8306 USB_DPRINTF_L2(DPRINT_MASK_HUB, hubd->h_log_handle,
8307 8307 "get hub configuration descriptor failed");
8308 8308 mutex_enter(HUBD_MUTEX(hubd));
8309 8309
8310 8310 return (USB_FAILURE);
8311 8311 }
8312 8312
8313 8313 mutex_enter(HUBD_MUTEX(hubd));
8314 8314
8315 8315 hubd->h_local_pwr_capable = (cfg_descr.bmAttributes &
8316 8316 USB_CFG_ATTR_SELFPWR);
8317 8317
8318 8318 if (hubd->h_local_pwr_capable) {
8319 8319 USB_DPRINTF_L3(DPRINT_MASK_HUB, hubd->h_log_handle,
8320 8320 "hub is capable of local power");
8321 8321 }
8322 8322
8323 8323 hubd->h_local_pwr_on = (status &
8324 8324 USB_DEV_SLF_PWRD_STATUS) && hubd->h_local_pwr_capable;
8325 8325
8326 8326 if (hubd->h_local_pwr_on) {
8327 8327 USB_DPRINTF_L3(DPRINT_MASK_HUB, hubd->h_log_handle,
8328 8328 "hub is local-powered");
8329 8329
8330 8330 hubd->h_pwr_limit = (USB_PWR_UNIT_LOAD *
8331 8331 USB_HIGH_PWR_VALUE) / USB_CFG_DESCR_PWR_UNIT;
8332 8332 } else {
8333 8333 hubd->h_pwr_limit = (USB_PWR_UNIT_LOAD *
8334 8334 USB_LOW_PWR_VALUE) / USB_CFG_DESCR_PWR_UNIT;
8335 8335
8336 8336 hubd->h_pwr_left = (USB_PWR_UNIT_LOAD *
8337 8337 USB_HIGH_PWR_VALUE) / USB_CFG_DESCR_PWR_UNIT;
8338 8338
8339 8339 ASSERT(!usba_is_root_hub(hubd->h_dip));
8340 8340
8341 8341 if (!usba_is_root_hub(hubd->h_dip)) {
8342 8342 /*
8343 8343 * two bus-powered hubs are not
8344 8344 * allowed to be concatenated
8345 8345 */
8346 8346 mutex_exit(HUBD_MUTEX(hubd));
8347 8347
8348 8348 pdip = ddi_get_parent(hubd->h_dip);
8349 8349 phubd = hubd_get_soft_state(pdip);
8350 8350 ASSERT(phubd != NULL);
8351 8351
8352 8352 if (!phubd->h_ignore_pwr_budget) {
8353 8353 mutex_enter(HUBD_MUTEX(phubd));
8354 8354 if (phubd->h_local_pwr_on == B_FALSE) {
8355 8355 USB_DPRINTF_L1(DPRINT_MASK_HUB,
8356 8356 hubd->h_log_handle,
8357 8357 "two bus-powered hubs cannot "
8358 8358 "be concatenated");
8359 8359
8360 8360 mutex_exit(HUBD_MUTEX(phubd));
8361 8361 mutex_enter(HUBD_MUTEX(hubd));
8362 8362
8363 8363 return (USB_FAILURE);
8364 8364 }
8365 8365 mutex_exit(HUBD_MUTEX(phubd));
8366 8366 }
8367 8367
8368 8368 mutex_enter(HUBD_MUTEX(hubd));
8369 8369
8370 8370 USB_DPRINTF_L3(DPRINT_MASK_HUB, hubd->h_log_handle,
8371 8371 "hub is bus-powered");
8372 8372 } else {
8373 8373 USB_DPRINTF_L3(DPRINT_MASK_HUB, hubd->h_log_handle,
8374 8374 "root-hub must be local-powered");
8375 8375 }
8376 8376
8377 8377 /*
8378 8378 * Subtract the power consumed by the hub itself
8379 8379 * and get the power that can be supplied to
8380 8380 * downstream ports
8381 8381 */
8382 8382 hubd->h_pwr_left -=
8383 8383 hubd->h_hub_descr.bHubContrCurrent /
8384 8384 USB_CFG_DESCR_PWR_UNIT;
8385 8385 if (hubd->h_pwr_left < 0) {
8386 8386 USB_DPRINTF_L2(DPRINT_MASK_HUB, hubd->h_log_handle,
8387 8387 "hubd->h_pwr_left is less than bHubContrCurrent, "
8388 8388 "should fail");
8389 8389
8390 8390 return (USB_FAILURE);
8391 8391 }
8392 8392 }
8393 8393
8394 8394 return (USB_SUCCESS);
8395 8395 }
8396 8396
8397 8397
8398 8398 /*
8399 8399 * usba_hubdi_check_power_budget:
8400 8400 * Check if the hub has enough power budget to allow a
8401 8401 * child device to select a configuration of config_index.
8402 8402 */
8403 8403 int
8404 8404 usba_hubdi_check_power_budget(dev_info_t *dip, usba_device_t *child_ud,
8405 8405 uint_t config_index)
8406 8406 {
8407 8407 int16_t pwr_left, pwr_limit, pwr_required;
8408 8408 size_t size;
8409 8409 usb_cfg_descr_t cfg_descr;
8410 8410 hubd_t *hubd;
8411 8411
8412 8412 if ((hubd = hubd_get_soft_state(dip)) == NULL) {
8413 8413
8414 8414 return (USB_FAILURE);
8415 8415 }
8416 8416
8417 8417 if (hubd->h_ignore_pwr_budget) {
8418 8418
8419 8419 return (USB_SUCCESS);
8420 8420 }
8421 8421
8422 8422 USB_DPRINTF_L4(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
8423 8423 "usba_hubdi_check_power_budget: "
8424 8424 "dip=0x%p child_ud=0x%p conf_index=%d", (void *)dip,
8425 8425 (void *)child_ud, config_index);
8426 8426
8427 8427 mutex_enter(HUBD_MUTEX(hubd));
8428 8428 pwr_limit = hubd->h_pwr_limit;
8429 8429 if (hubd->h_local_pwr_on == B_FALSE) {
8430 8430 pwr_left = hubd->h_pwr_left;
8431 8431 pwr_limit = (pwr_limit <= pwr_left) ? pwr_limit : pwr_left;
8432 8432 }
8433 8433 mutex_exit(HUBD_MUTEX(hubd));
8434 8434
8435 8435 USB_DPRINTF_L3(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
8436 8436 "usba_hubdi_check_power_budget: "
8437 8437 "available power is %dmA", pwr_limit * USB_CFG_DESCR_PWR_UNIT);
8438 8438
8439 8439 size = usb_parse_cfg_descr(
8440 8440 child_ud->usb_cfg_array[config_index], USB_CFG_DESCR_SIZE,
8441 8441 &cfg_descr, USB_CFG_DESCR_SIZE);
8442 8442
8443 8443 if (size != USB_CFG_DESCR_SIZE) {
8444 8444 USB_DPRINTF_L2(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
8445 8445 "get hub configuration descriptor failed");
8446 8446
8447 8447 return (USB_FAILURE);
8448 8448 }
8449 8449
8450 8450 pwr_required = cfg_descr.bMaxPower;
8451 8451
8452 8452 USB_DPRINTF_L3(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
8453 8453 "usba_hubdi_check_power_budget: "
8454 8454 "child bmAttributes=0x%x bMaxPower=%d "
8455 8455 "with config_index=%d", cfg_descr.bmAttributes,
8456 8456 pwr_required, config_index);
8457 8457
8458 8458 if (pwr_required > pwr_limit) {
8459 8459 USB_DPRINTF_L1(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
8460 8460 "configuration %d for device %s %s at port %d "
8461 8461 "exceeds power available for this port, please "
8462 8462 "re-insert your device into another hub port which "
8463 8463 "has enough power",
8464 8464 config_index,
8465 8465 child_ud->usb_mfg_str,
8466 8466 child_ud->usb_product_str,
8467 8467 child_ud->usb_port);
8468 8468
8469 8469 return (USB_FAILURE);
8470 8470 }
8471 8471
8472 8472 return (USB_SUCCESS);
8473 8473 }
8474 8474
8475 8475
8476 8476 /*
8477 8477 * usba_hubdi_incr_power_budget:
8478 8478 * Increase the hub power budget value when a child device
8479 8479 * is removed from a bus-powered hub port.
8480 8480 */
8481 8481 void
8482 8482 usba_hubdi_incr_power_budget(dev_info_t *dip, usba_device_t *child_ud)
8483 8483 {
8484 8484 uint16_t pwr_value;
8485 8485 hubd_t *hubd = hubd_get_soft_state(dip);
8486 8486
8487 8487 ASSERT(hubd != NULL);
8488 8488
8489 8489 if (hubd->h_ignore_pwr_budget) {
8490 8490
8491 8491 return;
8492 8492 }
8493 8493
8494 8494 USB_DPRINTF_L4(DPRINT_MASK_ATTA, hubd->h_log_handle,
8495 8495 "usba_hubdi_incr_power_budget: "
8496 8496 "dip=0x%p child_ud=0x%p", (void *)dip, (void *)child_ud);
8497 8497
8498 8498 mutex_enter(HUBD_MUTEX(hubd));
8499 8499 if (hubd->h_local_pwr_on == B_TRUE) {
8500 8500 USB_DPRINTF_L3(DPRINT_MASK_ATTA, hubd->h_log_handle,
8501 8501 "usba_hubdi_incr_power_budget: "
8502 8502 "hub is local powered");
8503 8503 mutex_exit(HUBD_MUTEX(hubd));
8504 8504
8505 8505 return;
8506 8506 }
8507 8507 mutex_exit(HUBD_MUTEX(hubd));
8508 8508
8509 8509 mutex_enter(&child_ud->usb_mutex);
8510 8510 if (child_ud->usb_pwr_from_hub == 0) {
8511 8511 mutex_exit(&child_ud->usb_mutex);
8512 8512
8513 8513 return;
8514 8514 }
8515 8515 pwr_value = child_ud->usb_pwr_from_hub;
8516 8516 mutex_exit(&child_ud->usb_mutex);
8517 8517
8518 8518 mutex_enter(HUBD_MUTEX(hubd));
8519 8519 hubd->h_pwr_left += pwr_value;
8520 8520
8521 8521 USB_DPRINTF_L3(DPRINT_MASK_ATTA, hubd->h_log_handle,
8522 8522 "usba_hubdi_incr_power_budget: "
8523 8523 "available power is %dmA, increased by %dmA",
8524 8524 hubd->h_pwr_left * USB_CFG_DESCR_PWR_UNIT,
8525 8525 pwr_value * USB_CFG_DESCR_PWR_UNIT);
8526 8526
8527 8527 mutex_exit(HUBD_MUTEX(hubd));
8528 8528
8529 8529 mutex_enter(&child_ud->usb_mutex);
8530 8530 child_ud->usb_pwr_from_hub = 0;
8531 8531 mutex_exit(&child_ud->usb_mutex);
8532 8532 }
8533 8533
8534 8534
8535 8535 /*
8536 8536 * usba_hubdi_decr_power_budget:
8537 8537 * Decrease the hub power budget value when a child device
8538 8538 * is inserted to a bus-powered hub port.
8539 8539 */
8540 8540 void
8541 8541 usba_hubdi_decr_power_budget(dev_info_t *dip, usba_device_t *child_ud)
8542 8542 {
8543 8543 uint16_t pwr_value;
8544 8544 size_t size;
8545 8545 usb_cfg_descr_t cfg_descr;
8546 8546 hubd_t *hubd = hubd_get_soft_state(dip);
8547 8547
8548 8548 ASSERT(hubd != NULL);
8549 8549
8550 8550 if (hubd->h_ignore_pwr_budget) {
8551 8551
8552 8552 return;
8553 8553 }
8554 8554
8555 8555 USB_DPRINTF_L4(DPRINT_MASK_ATTA, hubd->h_log_handle,
8556 8556 "usba_hubdi_decr_power_budget: "
8557 8557 "dip=0x%p child_ud=0x%p", (void *)dip, (void *)child_ud);
8558 8558
8559 8559 mutex_enter(HUBD_MUTEX(hubd));
8560 8560 if (hubd->h_local_pwr_on == B_TRUE) {
8561 8561 USB_DPRINTF_L3(DPRINT_MASK_ATTA, hubd->h_log_handle,
8562 8562 "usba_hubdi_decr_power_budget: "
8563 8563 "hub is local powered");
8564 8564 mutex_exit(HUBD_MUTEX(hubd));
8565 8565
8566 8566 return;
8567 8567 }
8568 8568 mutex_exit(HUBD_MUTEX(hubd));
8569 8569
8570 8570 mutex_enter(&child_ud->usb_mutex);
8571 8571 if (child_ud->usb_pwr_from_hub > 0) {
8572 8572 mutex_exit(&child_ud->usb_mutex);
8573 8573
8574 8574 return;
8575 8575 }
8576 8576 mutex_exit(&child_ud->usb_mutex);
8577 8577
8578 8578 size = usb_parse_cfg_descr(
8579 8579 child_ud->usb_cfg, child_ud->usb_cfg_length,
8580 8580 &cfg_descr, USB_CFG_DESCR_SIZE);
8581 8581 ASSERT(size == USB_CFG_DESCR_SIZE);
8582 8582
8583 8583 mutex_enter(HUBD_MUTEX(hubd));
8584 8584 pwr_value = cfg_descr.bMaxPower;
8585 8585 hubd->h_pwr_left -= pwr_value;
8586 8586 ASSERT(hubd->h_pwr_left >= 0);
8587 8587
8588 8588 USB_DPRINTF_L3(DPRINT_MASK_ATTA, hubd->h_log_handle,
8589 8589 "usba_hubdi_decr_power_budget: "
8590 8590 "available power is %dmA, decreased by %dmA",
8591 8591 hubd->h_pwr_left * USB_CFG_DESCR_PWR_UNIT,
8592 8592 pwr_value * USB_CFG_DESCR_PWR_UNIT);
8593 8593
8594 8594 mutex_exit(HUBD_MUTEX(hubd));
8595 8595
8596 8596 mutex_enter(&child_ud->usb_mutex);
8597 8597 child_ud->usb_pwr_from_hub = pwr_value;
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8598 8598 mutex_exit(&child_ud->usb_mutex);
8599 8599 }
8600 8600
8601 8601 /*
8602 8602 * hubd_wait_for_hotplug_exit:
8603 8603 * Waiting for the exit of the running hotplug thread or ioctl thread.
8604 8604 */
8605 8605 static int
8606 8606 hubd_wait_for_hotplug_exit(hubd_t *hubd)
8607 8607 {
8608 - clock_t until = drv_usectohz(1000000);
8608 + clock_t until = drv_sectohz(1);
8609 8609 int rval;
8610 8610
8611 8611 ASSERT(mutex_owned(HUBD_MUTEX(hubd)));
8612 8612
8613 8613 if (hubd->h_hotplug_thread) {
8614 8614 USB_DPRINTF_L3(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
8615 8615 "waiting for hubd hotplug thread exit");
8616 8616 rval = cv_reltimedwait(&hubd->h_cv_hotplug_dev,
8617 8617 &hubd->h_mutex, until, TR_CLOCK_TICK);
8618 8618
8619 8619 if ((rval <= 0) && (hubd->h_hotplug_thread)) {
8620 8620
8621 8621 return (USB_FAILURE);
8622 8622 }
8623 8623 }
8624 8624
8625 8625 return (USB_SUCCESS);
8626 8626 }
8627 8627
8628 8628 /*
8629 8629 * hubd_reset_thread:
8630 8630 * handles the "USB_RESET_LVL_REATTACH" reset of usb device.
8631 8631 *
8632 8632 * - delete the child (force detaching the device and its children)
8633 8633 * - reset the corresponding parent hub port
8634 8634 * - create the child (force re-attaching the device and its children)
8635 8635 */
8636 8636 static void
8637 8637 hubd_reset_thread(void *arg)
8638 8638 {
8639 8639 hubd_reset_arg_t *hd_arg = (hubd_reset_arg_t *)arg;
8640 8640 hubd_t *hubd = hd_arg->hubd;
8641 8641 uint16_t reset_port = hd_arg->reset_port;
8642 8642 uint16_t status, change;
8643 8643 hub_power_t *hubpm;
8644 8644 dev_info_t *hdip = hubd->h_dip;
8645 8645 dev_info_t *rh_dip = hubd->h_usba_device->usb_root_hub_dip;
8646 8646 dev_info_t *child_dip;
8647 8647 boolean_t online_child = B_FALSE;
8648 8648 int prh_circ, rh_circ, circ, devinst;
8649 8649 char *devname;
8650 8650 int i = 0;
8651 8651 int rval = USB_FAILURE;
8652 8652
8653 8653 USB_DPRINTF_L4(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
8654 8654 "hubd_reset_thread: started, hubd_reset_port = 0x%x", reset_port);
8655 8655
8656 8656 kmem_free(arg, sizeof (hubd_reset_arg_t));
8657 8657
8658 8658 mutex_enter(HUBD_MUTEX(hubd));
8659 8659
8660 8660 child_dip = hubd->h_children_dips[reset_port];
8661 8661 ASSERT(child_dip != NULL);
8662 8662
8663 8663 devname = (char *)ddi_driver_name(child_dip);
8664 8664 devinst = ddi_get_instance(child_dip);
8665 8665
8666 8666 /* if our bus power entry point is active, quit the reset */
8667 8667 if (hubd->h_bus_pwr) {
8668 8668 USB_DPRINTF_L0(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
8669 8669 "%s%d is under bus power management, cannot be reset. "
8670 8670 "Please disconnect and reconnect this device.",
8671 8671 devname, devinst);
8672 8672
8673 8673 goto Fail;
8674 8674 }
8675 8675
8676 8676 if (hubd_wait_for_hotplug_exit(hubd) == USB_FAILURE) {
8677 8677 /* we got woken up because of a timeout */
8678 8678 USB_DPRINTF_L0(DPRINT_MASK_HOTPLUG,
8679 8679 hubd->h_log_handle, "Time out when resetting the device"
8680 8680 " %s%d. Please disconnect and reconnect this device.",
8681 8681 devname, devinst);
8682 8682
8683 8683 goto Fail;
8684 8684 }
8685 8685
8686 8686 hubd->h_hotplug_thread++;
8687 8687
8688 8688 /* is this the root hub? */
8689 8689 if ((hdip == rh_dip) &&
8690 8690 (hubd->h_dev_state == USB_DEV_PWRED_DOWN)) {
8691 8691 hubpm = hubd->h_hubpm;
8692 8692
8693 8693 /* mark the root hub as full power */
8694 8694 hubpm->hubp_current_power = USB_DEV_OS_FULL_PWR;
8695 8695 hubpm->hubp_time_at_full_power = gethrtime();
8696 8696 mutex_exit(HUBD_MUTEX(hubd));
8697 8697
8698 8698 USB_DPRINTF_L3(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
8699 8699 "hubd_reset_thread: call pm_power_has_changed");
8700 8700
8701 8701 (void) pm_power_has_changed(hdip, 0,
8702 8702 USB_DEV_OS_FULL_PWR);
8703 8703
8704 8704 mutex_enter(HUBD_MUTEX(hubd));
8705 8705 hubd->h_dev_state = USB_DEV_ONLINE;
8706 8706 }
8707 8707
8708 8708 mutex_exit(HUBD_MUTEX(hubd));
8709 8709
8710 8710 /*
8711 8711 * this ensures one reset activity per system at a time.
8712 8712 * we enter the parent PCI node to have this serialization.
8713 8713 * this also excludes ioctls and deathrow thread
8714 8714 */
8715 8715 ndi_devi_enter(ddi_get_parent(rh_dip), &prh_circ);
8716 8716 ndi_devi_enter(rh_dip, &rh_circ);
8717 8717
8718 8718 /* exclude other threads */
8719 8719 ndi_devi_enter(hdip, &circ);
8720 8720 mutex_enter(HUBD_MUTEX(hubd));
8721 8721
8722 8722 /*
8723 8723 * We need to make sure that the child is still online for a hotplug
8724 8724 * thread could have inserted which detached the child.
8725 8725 */
8726 8726 if (hubd->h_children_dips[reset_port]) {
8727 8727 mutex_exit(HUBD_MUTEX(hubd));
8728 8728 /* First disconnect the device */
8729 8729 hubd_post_event(hubd, reset_port, USBA_EVENT_TAG_HOT_REMOVAL);
8730 8730
8731 8731 /* delete cached dv_node's but drop locks first */
8732 8732 ndi_devi_exit(hdip, circ);
8733 8733 ndi_devi_exit(rh_dip, rh_circ);
8734 8734 ndi_devi_exit(ddi_get_parent(rh_dip), prh_circ);
8735 8735
8736 8736 (void) devfs_clean(rh_dip, NULL, DV_CLEAN_FORCE);
8737 8737
8738 8738 /*
8739 8739 * workaround only for storage device. When it's able to force
8740 8740 * detach a driver, this code can be removed safely.
8741 8741 *
8742 8742 * If we're to reset storage device and the device is used, we
8743 8743 * will wait at most extra 20s for applications to exit and
8744 8744 * close the device. This is especially useful for HAL-based
8745 8745 * applications.
8746 8746 */
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8747 8747 if ((strcmp(devname, "scsa2usb") == 0) &&
8748 8748 DEVI(child_dip)->devi_ref != 0) {
8749 8749 while (i++ < hubdi_reset_delay) {
8750 8750 mutex_enter(HUBD_MUTEX(hubd));
8751 8751 rval = hubd_delete_child(hubd, reset_port,
8752 8752 NDI_DEVI_REMOVE, B_FALSE);
8753 8753 mutex_exit(HUBD_MUTEX(hubd));
8754 8754 if (rval == USB_SUCCESS)
8755 8755 break;
8756 8756
8757 - delay(drv_usectohz(1000000)); /* 1s */
8757 + delay(drv_sectohz(1));
8758 8758 }
8759 8759 }
8760 8760
8761 8761 ndi_devi_enter(ddi_get_parent(rh_dip), &prh_circ);
8762 8762 ndi_devi_enter(rh_dip, &rh_circ);
8763 8763 ndi_devi_enter(hdip, &circ);
8764 8764
8765 8765 mutex_enter(HUBD_MUTEX(hubd));
8766 8766
8767 8767 /* Then force detaching the device */
8768 8768 if ((rval != USB_SUCCESS) && (hubd_delete_child(hubd,
8769 8769 reset_port, NDI_DEVI_REMOVE, B_FALSE) != USB_SUCCESS)) {
8770 8770 USB_DPRINTF_L0(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
8771 8771 "%s%d cannot be reset due to other applications "
8772 8772 "are using it, please first close these "
8773 8773 "applications, then disconnect and reconnect"
8774 8774 "the device.", devname, devinst);
8775 8775
8776 8776 mutex_exit(HUBD_MUTEX(hubd));
8777 8777 /* post a re-connect event */
8778 8778 hubd_post_event(hubd, reset_port,
8779 8779 USBA_EVENT_TAG_HOT_INSERTION);
8780 8780 mutex_enter(HUBD_MUTEX(hubd));
8781 8781 } else {
8782 8782 (void) hubd_determine_port_status(hubd, reset_port,
8783 8783 &status, &change, HUBD_ACK_ALL_CHANGES);
8784 8784
8785 8785 /* Reset the parent hubd port and create new child */
8786 8786 if (status & PORT_STATUS_CCS) {
8787 8787 online_child |= (hubd_handle_port_connect(hubd,
8788 8788 reset_port) == USB_SUCCESS);
8789 8789 }
8790 8790 }
8791 8791 }
8792 8792
8793 8793 /* release locks so we can do a devfs_clean */
8794 8794 mutex_exit(HUBD_MUTEX(hubd));
8795 8795
8796 8796 /* delete cached dv_node's but drop locks first */
8797 8797 ndi_devi_exit(hdip, circ);
8798 8798 ndi_devi_exit(rh_dip, rh_circ);
8799 8799 ndi_devi_exit(ddi_get_parent(rh_dip), prh_circ);
8800 8800
8801 8801 (void) devfs_clean(rh_dip, NULL, 0);
8802 8802
8803 8803 /* now check if any children need onlining */
8804 8804 if (online_child) {
8805 8805 USB_DPRINTF_L3(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
8806 8806 "hubd_reset_thread: onlining children");
8807 8807
8808 8808 (void) ndi_devi_online(hubd->h_dip, 0);
8809 8809 }
8810 8810
8811 8811 mutex_enter(HUBD_MUTEX(hubd));
8812 8812
8813 8813 /* allow hotplug thread now */
8814 8814 hubd->h_hotplug_thread--;
8815 8815 Fail:
8816 8816 hubd_start_polling(hubd, 0);
8817 8817
8818 8818 /* mark this device as idle */
8819 8819 (void) hubd_pm_idle_component(hubd, hubd->h_dip, 0);
8820 8820
8821 8821 USB_DPRINTF_L4(DPRINT_MASK_HOTPLUG, hubd->h_log_handle,
8822 8822 "hubd_reset_thread: exit, %d", hubd->h_hotplug_thread);
8823 8823
8824 8824 hubd->h_reset_port[reset_port] = B_FALSE;
8825 8825
8826 8826 mutex_exit(HUBD_MUTEX(hubd));
8827 8827
8828 8828 ndi_rele_devi(hdip);
8829 8829 }
8830 8830
8831 8831 /*
8832 8832 * hubd_check_same_device:
8833 8833 * - open the default pipe of the device.
8834 8834 * - compare the old and new descriptors of the device.
8835 8835 * - close the default pipe.
8836 8836 */
8837 8837 static int
8838 8838 hubd_check_same_device(hubd_t *hubd, usb_port_t port)
8839 8839 {
8840 8840 dev_info_t *dip = hubd->h_children_dips[port];
8841 8841 usb_pipe_handle_t ph;
8842 8842 int rval = USB_FAILURE;
8843 8843
8844 8844 ASSERT(mutex_owned(HUBD_MUTEX(hubd)));
8845 8845
8846 8846 mutex_exit(HUBD_MUTEX(hubd));
8847 8847 /* Open the default pipe to operate the device */
8848 8848 if (usb_pipe_open(dip, NULL, NULL,
8849 8849 USB_FLAGS_SLEEP| USBA_FLAGS_PRIVILEGED,
8850 8850 &ph) == USB_SUCCESS) {
8851 8851 /*
8852 8852 * Check that if the device's descriptors are different
8853 8853 * from the values saved before the port reset.
8854 8854 */
8855 8855 rval = usb_check_same_device(dip,
8856 8856 hubd->h_log_handle, USB_LOG_L0,
8857 8857 DPRINT_MASK_ALL, USB_CHK_ALL, NULL);
8858 8858
8859 8859 usb_pipe_close(dip, ph, USB_FLAGS_SLEEP |
8860 8860 USBA_FLAGS_PRIVILEGED, NULL, NULL);
8861 8861 }
8862 8862 mutex_enter(HUBD_MUTEX(hubd));
8863 8863
8864 8864 return (rval);
8865 8865 }
8866 8866
8867 8867 /*
8868 8868 * usba_hubdi_reset_device
8869 8869 * Called by usb_reset_device to handle usb device reset.
8870 8870 */
8871 8871 int
8872 8872 usba_hubdi_reset_device(dev_info_t *dip, usb_dev_reset_lvl_t reset_level)
8873 8873 {
8874 8874 hubd_t *hubd;
8875 8875 usb_port_t port = 0;
8876 8876 dev_info_t *hdip;
8877 8877 usb_pipe_state_t prev_pipe_state = 0;
8878 8878 usba_device_t *usba_device;
8879 8879 hubd_reset_arg_t *arg;
8880 8880 int i, ph_open_cnt;
8881 8881 int rval = USB_FAILURE;
8882 8882
8883 8883 if ((!dip) || usba_is_root_hub(dip)) {
8884 8884 USB_DPRINTF_L2(DPRINT_MASK_ATTA, hubdi_log_handle,
8885 8885 "usba_hubdi_reset_device: NULL dip or root hub");
8886 8886
8887 8887 return (USB_INVALID_ARGS);
8888 8888 }
8889 8889
8890 8890 if (!usb_owns_device(dip)) {
8891 8891 USB_DPRINTF_L2(DPRINT_MASK_ATTA, hubdi_log_handle,
8892 8892 "usba_hubdi_reset_device: Not owns the device");
8893 8893
8894 8894 return (USB_INVALID_PERM);
8895 8895 }
8896 8896
8897 8897 if ((reset_level != USB_RESET_LVL_REATTACH) &&
8898 8898 (reset_level != USB_RESET_LVL_DEFAULT)) {
8899 8899 USB_DPRINTF_L2(DPRINT_MASK_ATTA, hubdi_log_handle,
8900 8900 "usba_hubdi_reset_device: Unknown flags");
8901 8901
8902 8902 return (USB_INVALID_ARGS);
8903 8903 }
8904 8904
8905 8905 if ((hdip = ddi_get_parent(dip)) == NULL) {
8906 8906 USB_DPRINTF_L2(DPRINT_MASK_ATTA, hubdi_log_handle,
8907 8907 "usba_hubdi_reset_device: fail to get parent hub");
8908 8908
8909 8909 return (USB_INVALID_ARGS);
8910 8910 }
8911 8911
8912 8912 if ((hubd = hubd_get_soft_state(hdip)) == NULL) {
8913 8913 USB_DPRINTF_L2(DPRINT_MASK_ATTA, hubdi_log_handle,
8914 8914 "usba_hubdi_reset_device: fail to get hub softstate");
8915 8915
8916 8916 return (USB_INVALID_ARGS);
8917 8917 }
8918 8918
8919 8919 mutex_enter(HUBD_MUTEX(hubd));
8920 8920
8921 8921 /* make sure the hub is connected before trying any kinds of reset. */
8922 8922 if ((hubd->h_dev_state == USB_DEV_DISCONNECTED) ||
8923 8923 (hubd->h_dev_state == USB_DEV_SUSPENDED)) {
8924 8924 USB_DPRINTF_L2(DPRINT_MASK_ATTA, hubd->h_log_handle,
8925 8925 "usb_reset_device: the state %d of the hub/roothub "
8926 8926 "associated to the device 0x%p is incorrect",
8927 8927 hubd->h_dev_state, (void *)dip);
8928 8928 mutex_exit(HUBD_MUTEX(hubd));
8929 8929
8930 8930 return (USB_INVALID_ARGS);
8931 8931 }
8932 8932
8933 8933 mutex_exit(HUBD_MUTEX(hubd));
8934 8934
8935 8935 port = hubd_child_dip2port(hubd, dip);
8936 8936
8937 8937 mutex_enter(HUBD_MUTEX(hubd));
8938 8938
8939 8939 if (hubd->h_reset_port[port]) {
8940 8940 USB_DPRINTF_L2(DPRINT_MASK_ATTA, hubd->h_log_handle,
8941 8941 "usb_reset_device: the corresponding port is resetting");
8942 8942 mutex_exit(HUBD_MUTEX(hubd));
8943 8943
8944 8944 return (USB_SUCCESS);
8945 8945 }
8946 8946
8947 8947 /*
8948 8948 * For Default reset, client drivers should first close all the pipes
8949 8949 * except default pipe before calling the function, also should not
8950 8950 * call the function during interrupt context.
8951 8951 */
8952 8952 if (reset_level == USB_RESET_LVL_DEFAULT) {
8953 8953 usba_device = hubd->h_usba_devices[port];
8954 8954 mutex_exit(HUBD_MUTEX(hubd));
8955 8955
8956 8956 if (servicing_interrupt()) {
8957 8957 USB_DPRINTF_L2(DPRINT_MASK_ATTA, hubd->h_log_handle,
8958 8958 "usb_reset_device: during interrput context, quit");
8959 8959
8960 8960 return (USB_INVALID_CONTEXT);
8961 8961 }
8962 8962 /* Check if all the pipes have been closed */
8963 8963 for (ph_open_cnt = 0, i = 1; i < USBA_N_ENDPOINTS; i++) {
8964 8964 if (usba_device->usb_ph_list[i].usba_ph_data) {
8965 8965 ph_open_cnt++;
8966 8966 break;
8967 8967 }
8968 8968 }
8969 8969 if (ph_open_cnt) {
8970 8970 USB_DPRINTF_L2(DPRINT_MASK_ATTA, hubd->h_log_handle,
8971 8971 "usb_reset_device: %d pipes are still open",
8972 8972 ph_open_cnt);
8973 8973
8974 8974 return (USB_BUSY);
8975 8975 }
8976 8976 mutex_enter(HUBD_MUTEX(hubd));
8977 8977 }
8978 8978
8979 8979 /* Don't perform reset while the device is detaching */
8980 8980 if (hubd->h_port_state[port] & HUBD_CHILD_DETACHING) {
8981 8981 USB_DPRINTF_L2(DPRINT_MASK_ATTA, hubd->h_log_handle,
8982 8982 "usb_reset_device: the device is detaching, "
8983 8983 "cannot be reset");
8984 8984 mutex_exit(HUBD_MUTEX(hubd));
8985 8985
8986 8986 return (USB_FAILURE);
8987 8987 }
8988 8988
8989 8989 hubd->h_reset_port[port] = B_TRUE;
8990 8990 hdip = hubd->h_dip;
8991 8991 mutex_exit(HUBD_MUTEX(hubd));
8992 8992
8993 8993 /* Don't allow hub detached during the reset */
8994 8994 ndi_hold_devi(hdip);
8995 8995
8996 8996 mutex_enter(HUBD_MUTEX(hubd));
8997 8997 hubd_pm_busy_component(hubd, hdip, 0);
8998 8998 mutex_exit(HUBD_MUTEX(hubd));
8999 8999 /* go full power */
9000 9000 (void) pm_raise_power(hdip, 0, USB_DEV_OS_FULL_PWR);
9001 9001 mutex_enter(HUBD_MUTEX(hubd));
9002 9002
9003 9003 hubd->h_hotplug_thread++;
9004 9004
9005 9005 /* stop polling if it was active */
9006 9006 if (hubd->h_ep1_ph) {
9007 9007 mutex_exit(HUBD_MUTEX(hubd));
9008 9008 (void) usb_pipe_get_state(hubd->h_ep1_ph, &prev_pipe_state,
9009 9009 USB_FLAGS_SLEEP);
9010 9010 mutex_enter(HUBD_MUTEX(hubd));
9011 9011
9012 9012 if (prev_pipe_state == USB_PIPE_STATE_ACTIVE) {
9013 9013 hubd_stop_polling(hubd);
9014 9014 }
9015 9015 }
9016 9016
9017 9017 switch (reset_level) {
9018 9018 case USB_RESET_LVL_REATTACH:
9019 9019 mutex_exit(HUBD_MUTEX(hubd));
9020 9020 arg = (hubd_reset_arg_t *)kmem_zalloc(
9021 9021 sizeof (hubd_reset_arg_t), KM_SLEEP);
9022 9022 arg->hubd = hubd;
9023 9023 arg->reset_port = port;
9024 9024 mutex_enter(HUBD_MUTEX(hubd));
9025 9025
9026 9026 if ((rval = usb_async_req(hdip, hubd_reset_thread,
9027 9027 (void *)arg, 0)) == USB_SUCCESS) {
9028 9028 hubd->h_hotplug_thread--;
9029 9029 mutex_exit(HUBD_MUTEX(hubd));
9030 9030
9031 9031 return (USB_SUCCESS);
9032 9032 } else {
9033 9033 USB_DPRINTF_L2(DPRINT_MASK_ATTA, hubd->h_log_handle,
9034 9034 "Cannot create reset thread, the device %s%d failed"
9035 9035 " to reset", ddi_driver_name(dip),
9036 9036 ddi_get_instance(dip));
9037 9037
9038 9038 kmem_free(arg, sizeof (hubd_reset_arg_t));
9039 9039 }
9040 9040
9041 9041 break;
9042 9042 case USB_RESET_LVL_DEFAULT:
9043 9043 /*
9044 9044 * Reset hub port and then recover device's address, set back
9045 9045 * device's configuration, hubd_handle_port_connect() will
9046 9046 * handle errors happened during this process.
9047 9047 */
9048 9048 if ((rval = hubd_handle_port_connect(hubd, port))
9049 9049 == USB_SUCCESS) {
9050 9050 mutex_exit(HUBD_MUTEX(hubd));
9051 9051 /* re-open the default pipe */
9052 9052 rval = usba_persistent_pipe_open(usba_device);
9053 9053 mutex_enter(HUBD_MUTEX(hubd));
9054 9054 if (rval != USB_SUCCESS) {
9055 9055 USB_DPRINTF_L2(DPRINT_MASK_ATTA,
9056 9056 hubd->h_log_handle, "failed to reopen "
9057 9057 "default pipe after reset, disable hub"
9058 9058 "port for %s%d", ddi_driver_name(dip),
9059 9059 ddi_get_instance(dip));
9060 9060 /*
9061 9061 * Disable port to set out a hotplug thread
9062 9062 * which will handle errors.
9063 9063 */
9064 9064 (void) hubd_disable_port(hubd, port);
9065 9065 }
9066 9066 }
9067 9067
9068 9068 break;
9069 9069 default:
9070 9070
9071 9071 break;
9072 9072 }
9073 9073
9074 9074 /* allow hotplug thread now */
9075 9075 hubd->h_hotplug_thread--;
9076 9076
9077 9077 if ((hubd->h_dev_state == USB_DEV_ONLINE) && hubd->h_ep1_ph &&
9078 9078 (prev_pipe_state == USB_PIPE_STATE_ACTIVE)) {
9079 9079 hubd_start_polling(hubd, 0);
9080 9080 }
9081 9081
9082 9082 hubd_pm_idle_component(hubd, hdip, 0);
9083 9083
9084 9084 /* Clear reset mark for the port. */
9085 9085 hubd->h_reset_port[port] = B_FALSE;
9086 9086
9087 9087 mutex_exit(HUBD_MUTEX(hubd));
9088 9088
9089 9089 ndi_rele_devi(hdip);
9090 9090
9091 9091 return (rval);
9092 9092 }
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