1 | #include <machine/rtems-bsd-kernel-space.h> |
---|
2 | |
---|
3 | /* $FreeBSD$ */ |
---|
4 | /*- |
---|
5 | * SPDX-License-Identifier: BSD-2-Clause-FreeBSD |
---|
6 | * |
---|
7 | * Copyright (c) 2008 Hans Petter Selasky. All rights reserved. |
---|
8 | * |
---|
9 | * Redistribution and use in source and binary forms, with or without |
---|
10 | * modification, are permitted provided that the following conditions |
---|
11 | * are met: |
---|
12 | * 1. Redistributions of source code must retain the above copyright |
---|
13 | * notice, this list of conditions and the following disclaimer. |
---|
14 | * 2. Redistributions in binary form must reproduce the above copyright |
---|
15 | * notice, this list of conditions and the following disclaimer in the |
---|
16 | * documentation and/or other materials provided with the distribution. |
---|
17 | * |
---|
18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
---|
19 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
---|
20 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
---|
21 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
---|
22 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
---|
23 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
---|
24 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
---|
25 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
---|
26 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
---|
27 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
---|
28 | * SUCH DAMAGE. |
---|
29 | */ |
---|
30 | |
---|
31 | #ifdef USB_GLOBAL_INCLUDE_FILE |
---|
32 | #include USB_GLOBAL_INCLUDE_FILE |
---|
33 | #else |
---|
34 | #include <rtems/bsd/local/opt_ddb.h> |
---|
35 | |
---|
36 | #include <sys/stdint.h> |
---|
37 | #include <sys/stddef.h> |
---|
38 | #include <sys/param.h> |
---|
39 | #include <sys/queue.h> |
---|
40 | #include <sys/types.h> |
---|
41 | #include <sys/systm.h> |
---|
42 | #include <sys/kernel.h> |
---|
43 | #include <sys/bus.h> |
---|
44 | #include <sys/module.h> |
---|
45 | #include <sys/lock.h> |
---|
46 | #include <sys/mutex.h> |
---|
47 | #include <sys/condvar.h> |
---|
48 | #include <sys/sysctl.h> |
---|
49 | #include <sys/sx.h> |
---|
50 | #include <rtems/bsd/sys/unistd.h> |
---|
51 | #include <sys/callout.h> |
---|
52 | #include <sys/malloc.h> |
---|
53 | #include <sys/priv.h> |
---|
54 | |
---|
55 | #include <dev/usb/usb.h> |
---|
56 | #include <dev/usb/usbdi.h> |
---|
57 | |
---|
58 | #define USB_DEBUG_VAR usb_ctrl_debug |
---|
59 | |
---|
60 | #include <dev/usb/usb_core.h> |
---|
61 | #include <dev/usb/usb_debug.h> |
---|
62 | #include <dev/usb/usb_process.h> |
---|
63 | #include <dev/usb/usb_busdma.h> |
---|
64 | #include <dev/usb/usb_dynamic.h> |
---|
65 | #include <dev/usb/usb_device.h> |
---|
66 | #include <dev/usb/usb_dev.h> |
---|
67 | #include <dev/usb/usb_hub.h> |
---|
68 | |
---|
69 | #include <dev/usb/usb_controller.h> |
---|
70 | #include <dev/usb/usb_bus.h> |
---|
71 | #include <dev/usb/usb_pf.h> |
---|
72 | #include <rtems/bsd/local/usb_if.h> |
---|
73 | #endif /* USB_GLOBAL_INCLUDE_FILE */ |
---|
74 | |
---|
75 | /* function prototypes */ |
---|
76 | |
---|
77 | static device_probe_t usb_probe; |
---|
78 | static device_attach_t usb_attach; |
---|
79 | static device_detach_t usb_detach; |
---|
80 | static device_suspend_t usb_suspend; |
---|
81 | static device_resume_t usb_resume; |
---|
82 | static device_shutdown_t usb_shutdown; |
---|
83 | |
---|
84 | static void usb_attach_sub(device_t, struct usb_bus *); |
---|
85 | |
---|
86 | /* static variables */ |
---|
87 | |
---|
88 | #ifdef USB_DEBUG |
---|
89 | static int usb_ctrl_debug = 0; |
---|
90 | |
---|
91 | static SYSCTL_NODE(_hw_usb, OID_AUTO, ctrl, CTLFLAG_RW, 0, "USB controller"); |
---|
92 | SYSCTL_INT(_hw_usb_ctrl, OID_AUTO, debug, CTLFLAG_RWTUN, &usb_ctrl_debug, 0, |
---|
93 | "Debug level"); |
---|
94 | #endif |
---|
95 | |
---|
96 | #if USB_HAVE_ROOT_MOUNT_HOLD |
---|
97 | static int usb_no_boot_wait = 0; |
---|
98 | SYSCTL_INT(_hw_usb, OID_AUTO, no_boot_wait, CTLFLAG_RDTUN, &usb_no_boot_wait, 0, |
---|
99 | "No USB device enumerate waiting at boot."); |
---|
100 | #endif |
---|
101 | |
---|
102 | #ifndef __rtems__ |
---|
103 | static int usb_no_suspend_wait = 0; |
---|
104 | SYSCTL_INT(_hw_usb, OID_AUTO, no_suspend_wait, CTLFLAG_RWTUN, |
---|
105 | &usb_no_suspend_wait, 0, "No USB device waiting at system suspend."); |
---|
106 | |
---|
107 | static int usb_no_shutdown_wait = 0; |
---|
108 | SYSCTL_INT(_hw_usb, OID_AUTO, no_shutdown_wait, CTLFLAG_RWTUN, |
---|
109 | &usb_no_shutdown_wait, 0, "No USB device waiting at system shutdown."); |
---|
110 | #endif /* __rtems__ */ |
---|
111 | |
---|
112 | static devclass_t usb_devclass; |
---|
113 | |
---|
114 | static device_method_t usb_methods[] = { |
---|
115 | DEVMETHOD(device_probe, usb_probe), |
---|
116 | DEVMETHOD(device_attach, usb_attach), |
---|
117 | DEVMETHOD(device_detach, usb_detach), |
---|
118 | DEVMETHOD(device_suspend, usb_suspend), |
---|
119 | DEVMETHOD(device_resume, usb_resume), |
---|
120 | DEVMETHOD(device_shutdown, usb_shutdown), |
---|
121 | |
---|
122 | DEVMETHOD_END |
---|
123 | }; |
---|
124 | |
---|
125 | static driver_t usb_driver = { |
---|
126 | .name = "usbus", |
---|
127 | .methods = usb_methods, |
---|
128 | .size = 0, |
---|
129 | }; |
---|
130 | |
---|
131 | /* Host Only Drivers */ |
---|
132 | DRIVER_MODULE(usbus, ohci, usb_driver, usb_devclass, 0, 0); |
---|
133 | DRIVER_MODULE(usbus, uhci, usb_driver, usb_devclass, 0, 0); |
---|
134 | DRIVER_MODULE(usbus, ehci, usb_driver, usb_devclass, 0, 0); |
---|
135 | DRIVER_MODULE(usbus, xhci, usb_driver, usb_devclass, 0, 0); |
---|
136 | |
---|
137 | /* Device Only Drivers */ |
---|
138 | DRIVER_MODULE(usbus, musbotg, usb_driver, usb_devclass, 0, 0); |
---|
139 | DRIVER_MODULE(usbus, uss820dci, usb_driver, usb_devclass, 0, 0); |
---|
140 | DRIVER_MODULE(usbus, octusb, usb_driver, usb_devclass, 0, 0); |
---|
141 | |
---|
142 | /* Dual Mode Drivers */ |
---|
143 | DRIVER_MODULE(usbus, dwcotg, usb_driver, usb_devclass, 0, 0); |
---|
144 | DRIVER_MODULE(usbus, saf1761otg, usb_driver, usb_devclass, 0, 0); |
---|
145 | |
---|
146 | /*------------------------------------------------------------------------* |
---|
147 | * usb_probe |
---|
148 | * |
---|
149 | * This function is called from "{ehci,ohci,uhci}_pci_attach()". |
---|
150 | *------------------------------------------------------------------------*/ |
---|
151 | static int |
---|
152 | usb_probe(device_t dev) |
---|
153 | { |
---|
154 | DPRINTF("\n"); |
---|
155 | return (0); |
---|
156 | } |
---|
157 | |
---|
158 | #if USB_HAVE_ROOT_MOUNT_HOLD |
---|
159 | static void |
---|
160 | usb_root_mount_rel(struct usb_bus *bus) |
---|
161 | { |
---|
162 | #ifndef __rtems__ |
---|
163 | if (bus->bus_roothold != NULL) { |
---|
164 | DPRINTF("Releasing root mount hold %p\n", bus->bus_roothold); |
---|
165 | root_mount_rel(bus->bus_roothold); |
---|
166 | bus->bus_roothold = NULL; |
---|
167 | } |
---|
168 | #endif /* __rtems__ */ |
---|
169 | } |
---|
170 | #endif |
---|
171 | |
---|
172 | /*------------------------------------------------------------------------* |
---|
173 | * usb_attach |
---|
174 | *------------------------------------------------------------------------*/ |
---|
175 | static int |
---|
176 | usb_attach(device_t dev) |
---|
177 | { |
---|
178 | struct usb_bus *bus = device_get_ivars(dev); |
---|
179 | |
---|
180 | DPRINTF("\n"); |
---|
181 | |
---|
182 | if (bus == NULL) { |
---|
183 | device_printf(dev, "USB device has no ivars\n"); |
---|
184 | return (ENXIO); |
---|
185 | } |
---|
186 | |
---|
187 | #if USB_HAVE_ROOT_MOUNT_HOLD |
---|
188 | if (usb_no_boot_wait == 0) { |
---|
189 | /* delay vfs_mountroot until the bus is explored */ |
---|
190 | bus->bus_roothold = root_mount_hold(device_get_nameunit(dev)); |
---|
191 | } |
---|
192 | #endif |
---|
193 | |
---|
194 | usb_attach_sub(dev, bus); |
---|
195 | |
---|
196 | return (0); /* return success */ |
---|
197 | } |
---|
198 | |
---|
199 | /*------------------------------------------------------------------------* |
---|
200 | * usb_detach |
---|
201 | *------------------------------------------------------------------------*/ |
---|
202 | static int |
---|
203 | usb_detach(device_t dev) |
---|
204 | { |
---|
205 | struct usb_bus *bus = device_get_softc(dev); |
---|
206 | |
---|
207 | DPRINTF("\n"); |
---|
208 | |
---|
209 | if (bus == NULL) { |
---|
210 | /* was never setup properly */ |
---|
211 | return (0); |
---|
212 | } |
---|
213 | /* Stop power watchdog */ |
---|
214 | usb_callout_drain(&bus->power_wdog); |
---|
215 | |
---|
216 | #if USB_HAVE_ROOT_MOUNT_HOLD |
---|
217 | /* Let the USB explore process detach all devices. */ |
---|
218 | usb_root_mount_rel(bus); |
---|
219 | #endif |
---|
220 | |
---|
221 | USB_BUS_LOCK(bus); |
---|
222 | |
---|
223 | /* Queue detach job */ |
---|
224 | usb_proc_msignal(USB_BUS_EXPLORE_PROC(bus), |
---|
225 | &bus->detach_msg[0], &bus->detach_msg[1]); |
---|
226 | |
---|
227 | /* Wait for detach to complete */ |
---|
228 | usb_proc_mwait(USB_BUS_EXPLORE_PROC(bus), |
---|
229 | &bus->detach_msg[0], &bus->detach_msg[1]); |
---|
230 | |
---|
231 | #if USB_HAVE_UGEN |
---|
232 | /* Wait for cleanup to complete */ |
---|
233 | usb_proc_mwait(USB_BUS_EXPLORE_PROC(bus), |
---|
234 | &bus->cleanup_msg[0], &bus->cleanup_msg[1]); |
---|
235 | #endif |
---|
236 | USB_BUS_UNLOCK(bus); |
---|
237 | |
---|
238 | #if USB_HAVE_PER_BUS_PROCESS |
---|
239 | /* Get rid of USB callback processes */ |
---|
240 | |
---|
241 | usb_proc_free(USB_BUS_GIANT_PROC(bus)); |
---|
242 | usb_proc_free(USB_BUS_NON_GIANT_ISOC_PROC(bus)); |
---|
243 | usb_proc_free(USB_BUS_NON_GIANT_BULK_PROC(bus)); |
---|
244 | |
---|
245 | /* Get rid of USB explore process */ |
---|
246 | |
---|
247 | usb_proc_free(USB_BUS_EXPLORE_PROC(bus)); |
---|
248 | |
---|
249 | /* Get rid of control transfer process */ |
---|
250 | |
---|
251 | usb_proc_free(USB_BUS_CONTROL_XFER_PROC(bus)); |
---|
252 | #endif |
---|
253 | |
---|
254 | #if USB_HAVE_PF |
---|
255 | usbpf_detach(bus); |
---|
256 | #endif |
---|
257 | return (0); |
---|
258 | } |
---|
259 | |
---|
260 | /*------------------------------------------------------------------------* |
---|
261 | * usb_suspend |
---|
262 | *------------------------------------------------------------------------*/ |
---|
263 | static int |
---|
264 | usb_suspend(device_t dev) |
---|
265 | { |
---|
266 | struct usb_bus *bus = device_get_softc(dev); |
---|
267 | |
---|
268 | DPRINTF("\n"); |
---|
269 | |
---|
270 | if (bus == NULL) { |
---|
271 | /* was never setup properly */ |
---|
272 | return (0); |
---|
273 | } |
---|
274 | |
---|
275 | USB_BUS_LOCK(bus); |
---|
276 | usb_proc_msignal(USB_BUS_EXPLORE_PROC(bus), |
---|
277 | &bus->suspend_msg[0], &bus->suspend_msg[1]); |
---|
278 | #ifndef __rtems__ |
---|
279 | if (usb_no_suspend_wait == 0) { |
---|
280 | /* wait for suspend callback to be executed */ |
---|
281 | usb_proc_mwait(USB_BUS_EXPLORE_PROC(bus), |
---|
282 | &bus->suspend_msg[0], &bus->suspend_msg[1]); |
---|
283 | } |
---|
284 | #endif /* __rtems__ */ |
---|
285 | USB_BUS_UNLOCK(bus); |
---|
286 | |
---|
287 | return (0); |
---|
288 | } |
---|
289 | |
---|
290 | /*------------------------------------------------------------------------* |
---|
291 | * usb_resume |
---|
292 | *------------------------------------------------------------------------*/ |
---|
293 | static int |
---|
294 | usb_resume(device_t dev) |
---|
295 | { |
---|
296 | struct usb_bus *bus = device_get_softc(dev); |
---|
297 | |
---|
298 | DPRINTF("\n"); |
---|
299 | |
---|
300 | if (bus == NULL) { |
---|
301 | /* was never setup properly */ |
---|
302 | return (0); |
---|
303 | } |
---|
304 | |
---|
305 | USB_BUS_LOCK(bus); |
---|
306 | usb_proc_msignal(USB_BUS_EXPLORE_PROC(bus), |
---|
307 | &bus->resume_msg[0], &bus->resume_msg[1]); |
---|
308 | USB_BUS_UNLOCK(bus); |
---|
309 | |
---|
310 | return (0); |
---|
311 | } |
---|
312 | |
---|
313 | /*------------------------------------------------------------------------* |
---|
314 | * usb_bus_reset_async_locked |
---|
315 | *------------------------------------------------------------------------*/ |
---|
316 | void |
---|
317 | usb_bus_reset_async_locked(struct usb_bus *bus) |
---|
318 | { |
---|
319 | USB_BUS_LOCK_ASSERT(bus, MA_OWNED); |
---|
320 | |
---|
321 | DPRINTF("\n"); |
---|
322 | |
---|
323 | if (bus->reset_msg[0].hdr.pm_qentry.tqe_prev != NULL || |
---|
324 | bus->reset_msg[1].hdr.pm_qentry.tqe_prev != NULL) { |
---|
325 | DPRINTF("Reset already pending\n"); |
---|
326 | return; |
---|
327 | } |
---|
328 | |
---|
329 | device_printf(bus->parent, "Resetting controller\n"); |
---|
330 | |
---|
331 | usb_proc_msignal(USB_BUS_EXPLORE_PROC(bus), |
---|
332 | &bus->reset_msg[0], &bus->reset_msg[1]); |
---|
333 | } |
---|
334 | |
---|
335 | /*------------------------------------------------------------------------* |
---|
336 | * usb_shutdown |
---|
337 | *------------------------------------------------------------------------*/ |
---|
338 | static int |
---|
339 | usb_shutdown(device_t dev) |
---|
340 | { |
---|
341 | struct usb_bus *bus = device_get_softc(dev); |
---|
342 | |
---|
343 | DPRINTF("\n"); |
---|
344 | |
---|
345 | if (bus == NULL) { |
---|
346 | /* was never setup properly */ |
---|
347 | return (0); |
---|
348 | } |
---|
349 | |
---|
350 | DPRINTF("%s: Controller shutdown\n", device_get_nameunit(bus->bdev)); |
---|
351 | |
---|
352 | USB_BUS_LOCK(bus); |
---|
353 | #ifndef __rtems__ |
---|
354 | usb_proc_msignal(USB_BUS_EXPLORE_PROC(bus), |
---|
355 | &bus->shutdown_msg[0], &bus->shutdown_msg[1]); |
---|
356 | if (usb_no_shutdown_wait == 0) { |
---|
357 | /* wait for shutdown callback to be executed */ |
---|
358 | usb_proc_mwait(USB_BUS_EXPLORE_PROC(bus), |
---|
359 | &bus->shutdown_msg[0], &bus->shutdown_msg[1]); |
---|
360 | } |
---|
361 | #endif /* __rtems__ */ |
---|
362 | USB_BUS_UNLOCK(bus); |
---|
363 | |
---|
364 | DPRINTF("%s: Controller shutdown complete\n", |
---|
365 | device_get_nameunit(bus->bdev)); |
---|
366 | |
---|
367 | return (0); |
---|
368 | } |
---|
369 | |
---|
370 | /*------------------------------------------------------------------------* |
---|
371 | * usb_bus_explore |
---|
372 | * |
---|
373 | * This function is used to explore the device tree from the root. |
---|
374 | *------------------------------------------------------------------------*/ |
---|
375 | static void |
---|
376 | usb_bus_explore(struct usb_proc_msg *pm) |
---|
377 | { |
---|
378 | struct usb_bus *bus; |
---|
379 | struct usb_device *udev; |
---|
380 | |
---|
381 | bus = ((struct usb_bus_msg *)pm)->bus; |
---|
382 | udev = bus->devices[USB_ROOT_HUB_ADDR]; |
---|
383 | |
---|
384 | if (bus->no_explore != 0) |
---|
385 | return; |
---|
386 | |
---|
387 | if (udev != NULL) { |
---|
388 | USB_BUS_UNLOCK(bus); |
---|
389 | uhub_explore_handle_re_enumerate(udev); |
---|
390 | USB_BUS_LOCK(bus); |
---|
391 | } |
---|
392 | |
---|
393 | if (udev != NULL && udev->hub != NULL) { |
---|
394 | |
---|
395 | if (bus->do_probe) { |
---|
396 | bus->do_probe = 0; |
---|
397 | bus->driver_added_refcount++; |
---|
398 | } |
---|
399 | if (bus->driver_added_refcount == 0) { |
---|
400 | /* avoid zero, hence that is memory default */ |
---|
401 | bus->driver_added_refcount = 1; |
---|
402 | } |
---|
403 | |
---|
404 | #ifdef DDB |
---|
405 | /* |
---|
406 | * The following three lines of code are only here to |
---|
407 | * recover from DDB: |
---|
408 | */ |
---|
409 | usb_proc_rewakeup(USB_BUS_CONTROL_XFER_PROC(bus)); |
---|
410 | usb_proc_rewakeup(USB_BUS_GIANT_PROC(bus)); |
---|
411 | usb_proc_rewakeup(USB_BUS_NON_GIANT_ISOC_PROC(bus)); |
---|
412 | usb_proc_rewakeup(USB_BUS_NON_GIANT_BULK_PROC(bus)); |
---|
413 | #endif |
---|
414 | |
---|
415 | USB_BUS_UNLOCK(bus); |
---|
416 | |
---|
417 | #if USB_HAVE_POWERD |
---|
418 | /* |
---|
419 | * First update the USB power state! |
---|
420 | */ |
---|
421 | usb_bus_powerd(bus); |
---|
422 | #endif |
---|
423 | /* Explore the Root USB HUB. */ |
---|
424 | (udev->hub->explore) (udev); |
---|
425 | USB_BUS_LOCK(bus); |
---|
426 | } |
---|
427 | #if USB_HAVE_ROOT_MOUNT_HOLD |
---|
428 | usb_root_mount_rel(bus); |
---|
429 | #endif |
---|
430 | } |
---|
431 | |
---|
432 | /*------------------------------------------------------------------------* |
---|
433 | * usb_bus_detach |
---|
434 | * |
---|
435 | * This function is used to detach the device tree from the root. |
---|
436 | *------------------------------------------------------------------------*/ |
---|
437 | static void |
---|
438 | usb_bus_detach(struct usb_proc_msg *pm) |
---|
439 | { |
---|
440 | struct usb_bus *bus; |
---|
441 | struct usb_device *udev; |
---|
442 | device_t dev; |
---|
443 | |
---|
444 | bus = ((struct usb_bus_msg *)pm)->bus; |
---|
445 | udev = bus->devices[USB_ROOT_HUB_ADDR]; |
---|
446 | dev = bus->bdev; |
---|
447 | /* clear the softc */ |
---|
448 | device_set_softc(dev, NULL); |
---|
449 | USB_BUS_UNLOCK(bus); |
---|
450 | |
---|
451 | /* detach children first */ |
---|
452 | mtx_lock(&Giant); |
---|
453 | bus_generic_detach(dev); |
---|
454 | mtx_unlock(&Giant); |
---|
455 | |
---|
456 | /* |
---|
457 | * Free USB device and all subdevices, if any. |
---|
458 | */ |
---|
459 | usb_free_device(udev, 0); |
---|
460 | |
---|
461 | USB_BUS_LOCK(bus); |
---|
462 | /* clear bdev variable last */ |
---|
463 | bus->bdev = NULL; |
---|
464 | } |
---|
465 | |
---|
466 | /*------------------------------------------------------------------------* |
---|
467 | * usb_bus_suspend |
---|
468 | * |
---|
469 | * This function is used to suspend the USB controller. |
---|
470 | *------------------------------------------------------------------------*/ |
---|
471 | static void |
---|
472 | usb_bus_suspend(struct usb_proc_msg *pm) |
---|
473 | { |
---|
474 | struct usb_bus *bus; |
---|
475 | struct usb_device *udev; |
---|
476 | usb_error_t err; |
---|
477 | uint8_t do_unlock; |
---|
478 | |
---|
479 | DPRINTF("\n"); |
---|
480 | |
---|
481 | bus = ((struct usb_bus_msg *)pm)->bus; |
---|
482 | udev = bus->devices[USB_ROOT_HUB_ADDR]; |
---|
483 | |
---|
484 | if (udev == NULL || bus->bdev == NULL) |
---|
485 | return; |
---|
486 | |
---|
487 | USB_BUS_UNLOCK(bus); |
---|
488 | |
---|
489 | /* |
---|
490 | * We use the shutdown event here because the suspend and |
---|
491 | * resume events are reserved for the USB port suspend and |
---|
492 | * resume. The USB system suspend is implemented like full |
---|
493 | * shutdown and all connected USB devices will be disconnected |
---|
494 | * subsequently. At resume all USB devices will be |
---|
495 | * re-connected again. |
---|
496 | */ |
---|
497 | |
---|
498 | bus_generic_shutdown(bus->bdev); |
---|
499 | |
---|
500 | do_unlock = usbd_enum_lock(udev); |
---|
501 | |
---|
502 | err = usbd_set_config_index(udev, USB_UNCONFIG_INDEX); |
---|
503 | if (err) |
---|
504 | device_printf(bus->bdev, "Could not unconfigure root HUB\n"); |
---|
505 | |
---|
506 | USB_BUS_LOCK(bus); |
---|
507 | bus->hw_power_state = 0; |
---|
508 | bus->no_explore = 1; |
---|
509 | USB_BUS_UNLOCK(bus); |
---|
510 | |
---|
511 | if (bus->methods->set_hw_power != NULL) |
---|
512 | (bus->methods->set_hw_power) (bus); |
---|
513 | |
---|
514 | if (bus->methods->set_hw_power_sleep != NULL) |
---|
515 | (bus->methods->set_hw_power_sleep) (bus, USB_HW_POWER_SUSPEND); |
---|
516 | |
---|
517 | if (do_unlock) |
---|
518 | usbd_enum_unlock(udev); |
---|
519 | |
---|
520 | USB_BUS_LOCK(bus); |
---|
521 | } |
---|
522 | |
---|
523 | /*------------------------------------------------------------------------* |
---|
524 | * usb_bus_resume |
---|
525 | * |
---|
526 | * This function is used to resume the USB controller. |
---|
527 | *------------------------------------------------------------------------*/ |
---|
528 | static void |
---|
529 | usb_bus_resume(struct usb_proc_msg *pm) |
---|
530 | { |
---|
531 | struct usb_bus *bus; |
---|
532 | struct usb_device *udev; |
---|
533 | usb_error_t err; |
---|
534 | uint8_t do_unlock; |
---|
535 | |
---|
536 | DPRINTF("\n"); |
---|
537 | |
---|
538 | bus = ((struct usb_bus_msg *)pm)->bus; |
---|
539 | udev = bus->devices[USB_ROOT_HUB_ADDR]; |
---|
540 | |
---|
541 | if (udev == NULL || bus->bdev == NULL) |
---|
542 | return; |
---|
543 | |
---|
544 | USB_BUS_UNLOCK(bus); |
---|
545 | |
---|
546 | do_unlock = usbd_enum_lock(udev); |
---|
547 | #if 0 |
---|
548 | DEVMETHOD(usb_take_controller, NULL); /* dummy */ |
---|
549 | #endif |
---|
550 | USB_TAKE_CONTROLLER(device_get_parent(bus->bdev)); |
---|
551 | |
---|
552 | USB_BUS_LOCK(bus); |
---|
553 | bus->hw_power_state = |
---|
554 | USB_HW_POWER_CONTROL | |
---|
555 | USB_HW_POWER_BULK | |
---|
556 | USB_HW_POWER_INTERRUPT | |
---|
557 | USB_HW_POWER_ISOC | |
---|
558 | USB_HW_POWER_NON_ROOT_HUB; |
---|
559 | bus->no_explore = 0; |
---|
560 | USB_BUS_UNLOCK(bus); |
---|
561 | |
---|
562 | if (bus->methods->set_hw_power_sleep != NULL) |
---|
563 | (bus->methods->set_hw_power_sleep) (bus, USB_HW_POWER_RESUME); |
---|
564 | |
---|
565 | if (bus->methods->set_hw_power != NULL) |
---|
566 | (bus->methods->set_hw_power) (bus); |
---|
567 | |
---|
568 | /* restore USB configuration to index 0 */ |
---|
569 | err = usbd_set_config_index(udev, 0); |
---|
570 | if (err) |
---|
571 | device_printf(bus->bdev, "Could not configure root HUB\n"); |
---|
572 | |
---|
573 | /* probe and attach */ |
---|
574 | err = usb_probe_and_attach(udev, USB_IFACE_INDEX_ANY); |
---|
575 | if (err) { |
---|
576 | device_printf(bus->bdev, "Could not probe and " |
---|
577 | "attach root HUB\n"); |
---|
578 | } |
---|
579 | |
---|
580 | if (do_unlock) |
---|
581 | usbd_enum_unlock(udev); |
---|
582 | |
---|
583 | USB_BUS_LOCK(bus); |
---|
584 | } |
---|
585 | |
---|
586 | /*------------------------------------------------------------------------* |
---|
587 | * usb_bus_reset |
---|
588 | * |
---|
589 | * This function is used to reset the USB controller. |
---|
590 | *------------------------------------------------------------------------*/ |
---|
591 | static void |
---|
592 | usb_bus_reset(struct usb_proc_msg *pm) |
---|
593 | { |
---|
594 | struct usb_bus *bus; |
---|
595 | |
---|
596 | DPRINTF("\n"); |
---|
597 | |
---|
598 | bus = ((struct usb_bus_msg *)pm)->bus; |
---|
599 | |
---|
600 | if (bus->bdev == NULL || bus->no_explore != 0) |
---|
601 | return; |
---|
602 | |
---|
603 | /* a suspend and resume will reset the USB controller */ |
---|
604 | usb_bus_suspend(pm); |
---|
605 | usb_bus_resume(pm); |
---|
606 | } |
---|
607 | |
---|
608 | /*------------------------------------------------------------------------* |
---|
609 | * usb_bus_shutdown |
---|
610 | * |
---|
611 | * This function is used to shutdown the USB controller. |
---|
612 | *------------------------------------------------------------------------*/ |
---|
613 | static void |
---|
614 | usb_bus_shutdown(struct usb_proc_msg *pm) |
---|
615 | { |
---|
616 | struct usb_bus *bus; |
---|
617 | struct usb_device *udev; |
---|
618 | usb_error_t err; |
---|
619 | uint8_t do_unlock; |
---|
620 | |
---|
621 | bus = ((struct usb_bus_msg *)pm)->bus; |
---|
622 | udev = bus->devices[USB_ROOT_HUB_ADDR]; |
---|
623 | |
---|
624 | if (udev == NULL || bus->bdev == NULL) |
---|
625 | return; |
---|
626 | |
---|
627 | USB_BUS_UNLOCK(bus); |
---|
628 | |
---|
629 | bus_generic_shutdown(bus->bdev); |
---|
630 | |
---|
631 | do_unlock = usbd_enum_lock(udev); |
---|
632 | |
---|
633 | err = usbd_set_config_index(udev, USB_UNCONFIG_INDEX); |
---|
634 | if (err) |
---|
635 | device_printf(bus->bdev, "Could not unconfigure root HUB\n"); |
---|
636 | |
---|
637 | USB_BUS_LOCK(bus); |
---|
638 | bus->hw_power_state = 0; |
---|
639 | bus->no_explore = 1; |
---|
640 | USB_BUS_UNLOCK(bus); |
---|
641 | |
---|
642 | if (bus->methods->set_hw_power != NULL) |
---|
643 | (bus->methods->set_hw_power) (bus); |
---|
644 | |
---|
645 | if (bus->methods->set_hw_power_sleep != NULL) |
---|
646 | (bus->methods->set_hw_power_sleep) (bus, USB_HW_POWER_SHUTDOWN); |
---|
647 | |
---|
648 | if (do_unlock) |
---|
649 | usbd_enum_unlock(udev); |
---|
650 | |
---|
651 | USB_BUS_LOCK(bus); |
---|
652 | } |
---|
653 | |
---|
654 | /*------------------------------------------------------------------------* |
---|
655 | * usb_bus_cleanup |
---|
656 | * |
---|
657 | * This function is used to cleanup leftover USB character devices. |
---|
658 | *------------------------------------------------------------------------*/ |
---|
659 | #if USB_HAVE_UGEN |
---|
660 | static void |
---|
661 | usb_bus_cleanup(struct usb_proc_msg *pm) |
---|
662 | { |
---|
663 | struct usb_bus *bus; |
---|
664 | struct usb_fs_privdata *pd; |
---|
665 | |
---|
666 | bus = ((struct usb_bus_msg *)pm)->bus; |
---|
667 | |
---|
668 | while ((pd = LIST_FIRST(&bus->pd_cleanup_list)) != NULL) { |
---|
669 | |
---|
670 | LIST_REMOVE(pd, pd_next); |
---|
671 | USB_BUS_UNLOCK(bus); |
---|
672 | |
---|
673 | usb_destroy_dev_sync(pd); |
---|
674 | |
---|
675 | USB_BUS_LOCK(bus); |
---|
676 | } |
---|
677 | } |
---|
678 | #endif |
---|
679 | |
---|
680 | static void |
---|
681 | usb_power_wdog(void *arg) |
---|
682 | { |
---|
683 | struct usb_bus *bus = arg; |
---|
684 | |
---|
685 | USB_BUS_LOCK_ASSERT(bus, MA_OWNED); |
---|
686 | |
---|
687 | usb_callout_reset(&bus->power_wdog, |
---|
688 | 4 * hz, usb_power_wdog, arg); |
---|
689 | |
---|
690 | #ifdef DDB |
---|
691 | /* |
---|
692 | * The following line of code is only here to recover from |
---|
693 | * DDB: |
---|
694 | */ |
---|
695 | usb_proc_rewakeup(USB_BUS_EXPLORE_PROC(bus)); /* recover from DDB */ |
---|
696 | #endif |
---|
697 | |
---|
698 | #if USB_HAVE_POWERD |
---|
699 | USB_BUS_UNLOCK(bus); |
---|
700 | |
---|
701 | usb_bus_power_update(bus); |
---|
702 | |
---|
703 | USB_BUS_LOCK(bus); |
---|
704 | #endif |
---|
705 | } |
---|
706 | |
---|
707 | /*------------------------------------------------------------------------* |
---|
708 | * usb_bus_attach |
---|
709 | * |
---|
710 | * This function attaches USB in context of the explore thread. |
---|
711 | *------------------------------------------------------------------------*/ |
---|
712 | static void |
---|
713 | usb_bus_attach(struct usb_proc_msg *pm) |
---|
714 | { |
---|
715 | struct usb_bus *bus; |
---|
716 | struct usb_device *child; |
---|
717 | device_t dev; |
---|
718 | usb_error_t err; |
---|
719 | enum usb_dev_speed speed; |
---|
720 | |
---|
721 | bus = ((struct usb_bus_msg *)pm)->bus; |
---|
722 | dev = bus->bdev; |
---|
723 | |
---|
724 | DPRINTF("\n"); |
---|
725 | |
---|
726 | switch (bus->usbrev) { |
---|
727 | case USB_REV_1_0: |
---|
728 | speed = USB_SPEED_FULL; |
---|
729 | device_printf(bus->bdev, "12Mbps Full Speed USB v1.0\n"); |
---|
730 | break; |
---|
731 | |
---|
732 | case USB_REV_1_1: |
---|
733 | speed = USB_SPEED_FULL; |
---|
734 | device_printf(bus->bdev, "12Mbps Full Speed USB v1.1\n"); |
---|
735 | break; |
---|
736 | |
---|
737 | case USB_REV_2_0: |
---|
738 | speed = USB_SPEED_HIGH; |
---|
739 | device_printf(bus->bdev, "480Mbps High Speed USB v2.0\n"); |
---|
740 | break; |
---|
741 | |
---|
742 | case USB_REV_2_5: |
---|
743 | speed = USB_SPEED_VARIABLE; |
---|
744 | device_printf(bus->bdev, "480Mbps Wireless USB v2.5\n"); |
---|
745 | break; |
---|
746 | |
---|
747 | case USB_REV_3_0: |
---|
748 | speed = USB_SPEED_SUPER; |
---|
749 | device_printf(bus->bdev, "5.0Gbps Super Speed USB v3.0\n"); |
---|
750 | break; |
---|
751 | |
---|
752 | default: |
---|
753 | device_printf(bus->bdev, "Unsupported USB revision\n"); |
---|
754 | #if USB_HAVE_ROOT_MOUNT_HOLD |
---|
755 | usb_root_mount_rel(bus); |
---|
756 | #endif |
---|
757 | return; |
---|
758 | } |
---|
759 | |
---|
760 | /* default power_mask value */ |
---|
761 | bus->hw_power_state = |
---|
762 | USB_HW_POWER_CONTROL | |
---|
763 | USB_HW_POWER_BULK | |
---|
764 | USB_HW_POWER_INTERRUPT | |
---|
765 | USB_HW_POWER_ISOC | |
---|
766 | USB_HW_POWER_NON_ROOT_HUB; |
---|
767 | |
---|
768 | USB_BUS_UNLOCK(bus); |
---|
769 | |
---|
770 | /* make sure power is set at least once */ |
---|
771 | |
---|
772 | if (bus->methods->set_hw_power != NULL) { |
---|
773 | (bus->methods->set_hw_power) (bus); |
---|
774 | } |
---|
775 | |
---|
776 | /* allocate the Root USB device */ |
---|
777 | |
---|
778 | child = usb_alloc_device(bus->bdev, bus, NULL, 0, 0, 1, |
---|
779 | speed, USB_MODE_HOST); |
---|
780 | if (child) { |
---|
781 | err = usb_probe_and_attach(child, |
---|
782 | USB_IFACE_INDEX_ANY); |
---|
783 | if (!err) { |
---|
784 | if ((bus->devices[USB_ROOT_HUB_ADDR] == NULL) || |
---|
785 | (bus->devices[USB_ROOT_HUB_ADDR]->hub == NULL)) { |
---|
786 | err = USB_ERR_NO_ROOT_HUB; |
---|
787 | } |
---|
788 | } |
---|
789 | } else { |
---|
790 | err = USB_ERR_NOMEM; |
---|
791 | } |
---|
792 | |
---|
793 | USB_BUS_LOCK(bus); |
---|
794 | |
---|
795 | if (err) { |
---|
796 | device_printf(bus->bdev, "Root HUB problem, error=%s\n", |
---|
797 | usbd_errstr(err)); |
---|
798 | #if USB_HAVE_ROOT_MOUNT_HOLD |
---|
799 | usb_root_mount_rel(bus); |
---|
800 | #endif |
---|
801 | } |
---|
802 | |
---|
803 | /* set softc - we are ready */ |
---|
804 | device_set_softc(dev, bus); |
---|
805 | |
---|
806 | /* start watchdog */ |
---|
807 | usb_power_wdog(bus); |
---|
808 | } |
---|
809 | |
---|
810 | /*------------------------------------------------------------------------* |
---|
811 | * usb_attach_sub |
---|
812 | * |
---|
813 | * This function creates a thread which runs the USB attach code. |
---|
814 | *------------------------------------------------------------------------*/ |
---|
815 | static void |
---|
816 | usb_attach_sub(device_t dev, struct usb_bus *bus) |
---|
817 | { |
---|
818 | mtx_lock(&Giant); |
---|
819 | if (usb_devclass_ptr == NULL) |
---|
820 | usb_devclass_ptr = devclass_find("usbus"); |
---|
821 | mtx_unlock(&Giant); |
---|
822 | |
---|
823 | #if USB_HAVE_PF |
---|
824 | usbpf_attach(bus); |
---|
825 | #endif |
---|
826 | /* Initialise USB process messages */ |
---|
827 | bus->explore_msg[0].hdr.pm_callback = &usb_bus_explore; |
---|
828 | bus->explore_msg[0].bus = bus; |
---|
829 | bus->explore_msg[1].hdr.pm_callback = &usb_bus_explore; |
---|
830 | bus->explore_msg[1].bus = bus; |
---|
831 | |
---|
832 | bus->detach_msg[0].hdr.pm_callback = &usb_bus_detach; |
---|
833 | bus->detach_msg[0].bus = bus; |
---|
834 | bus->detach_msg[1].hdr.pm_callback = &usb_bus_detach; |
---|
835 | bus->detach_msg[1].bus = bus; |
---|
836 | |
---|
837 | bus->attach_msg[0].hdr.pm_callback = &usb_bus_attach; |
---|
838 | bus->attach_msg[0].bus = bus; |
---|
839 | bus->attach_msg[1].hdr.pm_callback = &usb_bus_attach; |
---|
840 | bus->attach_msg[1].bus = bus; |
---|
841 | |
---|
842 | bus->suspend_msg[0].hdr.pm_callback = &usb_bus_suspend; |
---|
843 | bus->suspend_msg[0].bus = bus; |
---|
844 | bus->suspend_msg[1].hdr.pm_callback = &usb_bus_suspend; |
---|
845 | bus->suspend_msg[1].bus = bus; |
---|
846 | |
---|
847 | bus->resume_msg[0].hdr.pm_callback = &usb_bus_resume; |
---|
848 | bus->resume_msg[0].bus = bus; |
---|
849 | bus->resume_msg[1].hdr.pm_callback = &usb_bus_resume; |
---|
850 | bus->resume_msg[1].bus = bus; |
---|
851 | |
---|
852 | bus->reset_msg[0].hdr.pm_callback = &usb_bus_reset; |
---|
853 | bus->reset_msg[0].bus = bus; |
---|
854 | bus->reset_msg[1].hdr.pm_callback = &usb_bus_reset; |
---|
855 | bus->reset_msg[1].bus = bus; |
---|
856 | |
---|
857 | bus->shutdown_msg[0].hdr.pm_callback = &usb_bus_shutdown; |
---|
858 | bus->shutdown_msg[0].bus = bus; |
---|
859 | bus->shutdown_msg[1].hdr.pm_callback = &usb_bus_shutdown; |
---|
860 | bus->shutdown_msg[1].bus = bus; |
---|
861 | |
---|
862 | #if USB_HAVE_UGEN |
---|
863 | LIST_INIT(&bus->pd_cleanup_list); |
---|
864 | bus->cleanup_msg[0].hdr.pm_callback = &usb_bus_cleanup; |
---|
865 | bus->cleanup_msg[0].bus = bus; |
---|
866 | bus->cleanup_msg[1].hdr.pm_callback = &usb_bus_cleanup; |
---|
867 | bus->cleanup_msg[1].bus = bus; |
---|
868 | #endif |
---|
869 | |
---|
870 | #if USB_HAVE_PER_BUS_PROCESS |
---|
871 | /* Create USB explore and callback processes */ |
---|
872 | |
---|
873 | if (usb_proc_create(USB_BUS_GIANT_PROC(bus), |
---|
874 | &bus->bus_mtx, device_get_nameunit(dev), USB_PRI_MED)) { |
---|
875 | device_printf(dev, "WARNING: Creation of USB Giant " |
---|
876 | "callback process failed.\n"); |
---|
877 | } else if (usb_proc_create(USB_BUS_NON_GIANT_ISOC_PROC(bus), |
---|
878 | &bus->bus_mtx, device_get_nameunit(dev), USB_PRI_HIGHEST)) { |
---|
879 | device_printf(dev, "WARNING: Creation of USB non-Giant ISOC " |
---|
880 | "callback process failed.\n"); |
---|
881 | } else if (usb_proc_create(USB_BUS_NON_GIANT_BULK_PROC(bus), |
---|
882 | &bus->bus_mtx, device_get_nameunit(dev), USB_PRI_HIGH)) { |
---|
883 | device_printf(dev, "WARNING: Creation of USB non-Giant BULK " |
---|
884 | "callback process failed.\n"); |
---|
885 | } else if (usb_proc_create(USB_BUS_EXPLORE_PROC(bus), |
---|
886 | &bus->bus_mtx, device_get_nameunit(dev), USB_PRI_MED)) { |
---|
887 | device_printf(dev, "WARNING: Creation of USB explore " |
---|
888 | "process failed.\n"); |
---|
889 | } else if (usb_proc_create(USB_BUS_CONTROL_XFER_PROC(bus), |
---|
890 | &bus->bus_mtx, device_get_nameunit(dev), USB_PRI_MED)) { |
---|
891 | device_printf(dev, "WARNING: Creation of USB control transfer " |
---|
892 | "process failed.\n"); |
---|
893 | } else |
---|
894 | #endif |
---|
895 | { |
---|
896 | /* Get final attach going */ |
---|
897 | USB_BUS_LOCK(bus); |
---|
898 | usb_proc_msignal(USB_BUS_EXPLORE_PROC(bus), |
---|
899 | &bus->attach_msg[0], &bus->attach_msg[1]); |
---|
900 | USB_BUS_UNLOCK(bus); |
---|
901 | |
---|
902 | /* Do initial explore */ |
---|
903 | usb_needs_explore(bus, 1); |
---|
904 | } |
---|
905 | } |
---|
906 | SYSUNINIT(usb_bus_unload, SI_SUB_KLD, SI_ORDER_ANY, usb_bus_unload, NULL); |
---|
907 | |
---|
908 | /*------------------------------------------------------------------------* |
---|
909 | * usb_bus_mem_flush_all_cb |
---|
910 | *------------------------------------------------------------------------*/ |
---|
911 | #if USB_HAVE_BUSDMA |
---|
912 | static void |
---|
913 | usb_bus_mem_flush_all_cb(struct usb_bus *bus, struct usb_page_cache *pc, |
---|
914 | struct usb_page *pg, usb_size_t size, usb_size_t align) |
---|
915 | { |
---|
916 | usb_pc_cpu_flush(pc); |
---|
917 | } |
---|
918 | #endif |
---|
919 | |
---|
920 | /*------------------------------------------------------------------------* |
---|
921 | * usb_bus_mem_flush_all - factored out code |
---|
922 | *------------------------------------------------------------------------*/ |
---|
923 | #if USB_HAVE_BUSDMA |
---|
924 | void |
---|
925 | usb_bus_mem_flush_all(struct usb_bus *bus, usb_bus_mem_cb_t *cb) |
---|
926 | { |
---|
927 | if (cb) { |
---|
928 | cb(bus, &usb_bus_mem_flush_all_cb); |
---|
929 | } |
---|
930 | } |
---|
931 | #endif |
---|
932 | |
---|
933 | /*------------------------------------------------------------------------* |
---|
934 | * usb_bus_mem_alloc_all_cb |
---|
935 | *------------------------------------------------------------------------*/ |
---|
936 | #if USB_HAVE_BUSDMA |
---|
937 | static void |
---|
938 | usb_bus_mem_alloc_all_cb(struct usb_bus *bus, struct usb_page_cache *pc, |
---|
939 | struct usb_page *pg, usb_size_t size, usb_size_t align) |
---|
940 | { |
---|
941 | /* need to initialize the page cache */ |
---|
942 | pc->tag_parent = bus->dma_parent_tag; |
---|
943 | |
---|
944 | if (usb_pc_alloc_mem(pc, pg, size, align)) { |
---|
945 | bus->alloc_failed = 1; |
---|
946 | } |
---|
947 | } |
---|
948 | #endif |
---|
949 | |
---|
950 | /*------------------------------------------------------------------------* |
---|
951 | * usb_bus_mem_alloc_all - factored out code |
---|
952 | * |
---|
953 | * Returns: |
---|
954 | * 0: Success |
---|
955 | * Else: Failure |
---|
956 | *------------------------------------------------------------------------*/ |
---|
957 | uint8_t |
---|
958 | usb_bus_mem_alloc_all(struct usb_bus *bus, bus_dma_tag_t dmat, |
---|
959 | usb_bus_mem_cb_t *cb) |
---|
960 | { |
---|
961 | bus->alloc_failed = 0; |
---|
962 | |
---|
963 | mtx_init(&bus->bus_mtx, device_get_nameunit(bus->parent), |
---|
964 | "usb_def_mtx", MTX_DEF | MTX_RECURSE); |
---|
965 | |
---|
966 | mtx_init(&bus->bus_spin_lock, device_get_nameunit(bus->parent), |
---|
967 | "usb_spin_mtx", MTX_SPIN | MTX_RECURSE); |
---|
968 | |
---|
969 | usb_callout_init_mtx(&bus->power_wdog, |
---|
970 | &bus->bus_mtx, 0); |
---|
971 | |
---|
972 | TAILQ_INIT(&bus->intr_q.head); |
---|
973 | |
---|
974 | #if USB_HAVE_BUSDMA |
---|
975 | usb_dma_tag_setup(bus->dma_parent_tag, bus->dma_tags, |
---|
976 | dmat, &bus->bus_mtx, NULL, bus->dma_bits, USB_BUS_DMA_TAG_MAX); |
---|
977 | #endif |
---|
978 | if ((bus->devices_max > USB_MAX_DEVICES) || |
---|
979 | (bus->devices_max < USB_MIN_DEVICES) || |
---|
980 | (bus->devices == NULL)) { |
---|
981 | DPRINTFN(0, "Devices field has not been " |
---|
982 | "initialised properly\n"); |
---|
983 | bus->alloc_failed = 1; /* failure */ |
---|
984 | } |
---|
985 | #if USB_HAVE_BUSDMA |
---|
986 | if (cb) { |
---|
987 | cb(bus, &usb_bus_mem_alloc_all_cb); |
---|
988 | } |
---|
989 | #endif |
---|
990 | if (bus->alloc_failed) { |
---|
991 | usb_bus_mem_free_all(bus, cb); |
---|
992 | } |
---|
993 | return (bus->alloc_failed); |
---|
994 | } |
---|
995 | |
---|
996 | /*------------------------------------------------------------------------* |
---|
997 | * usb_bus_mem_free_all_cb |
---|
998 | *------------------------------------------------------------------------*/ |
---|
999 | #if USB_HAVE_BUSDMA |
---|
1000 | static void |
---|
1001 | usb_bus_mem_free_all_cb(struct usb_bus *bus, struct usb_page_cache *pc, |
---|
1002 | struct usb_page *pg, usb_size_t size, usb_size_t align) |
---|
1003 | { |
---|
1004 | usb_pc_free_mem(pc); |
---|
1005 | } |
---|
1006 | #endif |
---|
1007 | |
---|
1008 | /*------------------------------------------------------------------------* |
---|
1009 | * usb_bus_mem_free_all - factored out code |
---|
1010 | *------------------------------------------------------------------------*/ |
---|
1011 | void |
---|
1012 | usb_bus_mem_free_all(struct usb_bus *bus, usb_bus_mem_cb_t *cb) |
---|
1013 | { |
---|
1014 | #if USB_HAVE_BUSDMA |
---|
1015 | if (cb) { |
---|
1016 | cb(bus, &usb_bus_mem_free_all_cb); |
---|
1017 | } |
---|
1018 | usb_dma_tag_unsetup(bus->dma_parent_tag); |
---|
1019 | #endif |
---|
1020 | |
---|
1021 | mtx_destroy(&bus->bus_mtx); |
---|
1022 | mtx_destroy(&bus->bus_spin_lock); |
---|
1023 | } |
---|
1024 | |
---|
1025 | /* convenience wrappers */ |
---|
1026 | void |
---|
1027 | usb_proc_explore_mwait(struct usb_device *udev, void *pm1, void *pm2) |
---|
1028 | { |
---|
1029 | usb_proc_mwait(USB_BUS_EXPLORE_PROC(udev->bus), pm1, pm2); |
---|
1030 | } |
---|
1031 | |
---|
1032 | void * |
---|
1033 | usb_proc_explore_msignal(struct usb_device *udev, void *pm1, void *pm2) |
---|
1034 | { |
---|
1035 | return (usb_proc_msignal(USB_BUS_EXPLORE_PROC(udev->bus), pm1, pm2)); |
---|
1036 | } |
---|
1037 | |
---|
1038 | void |
---|
1039 | usb_proc_explore_lock(struct usb_device *udev) |
---|
1040 | { |
---|
1041 | USB_BUS_LOCK(udev->bus); |
---|
1042 | } |
---|
1043 | |
---|
1044 | void |
---|
1045 | usb_proc_explore_unlock(struct usb_device *udev) |
---|
1046 | { |
---|
1047 | USB_BUS_UNLOCK(udev->bus); |
---|
1048 | } |
---|