1 /* $NetBSD: uhci.c,v 1.170 2003/02/19 01:35:04 augustss Exp $ */
2 /* $FreeBSD: src/sys/dev/usb/uhci.c,v 1.162.2.1 2006/03/01 01:59:04 iedowse Exp $ */
3 /* $DragonFly: src/sys/bus/usb/uhci.c,v 1.25 2007/06/29 22:56:31 hasso Exp $ */
5 /* Also already incorporated from NetBSD:
6 * $NetBSD: uhci.c,v 1.172 2003/02/23 04:19:26 simonb Exp $
7 * $NetBSD: uhci.c,v 1.173 2003/05/13 04:41:59 gson Exp $
8 * $NetBSD: uhci.c,v 1.175 2003/09/12 16:18:08 mycroft Exp $
9 * $NetBSD: uhci.c,v 1.176 2003/11/04 19:11:21 mycroft Exp $
10 * $NetBSD: uhci.c,v 1.177 2003/12/29 08:17:10 toshii Exp $
11 * $NetBSD: uhci.c,v 1.178 2004/03/02 16:32:05 martin Exp $
12 * $NetBSD: uhci.c,v 1.180 2004/07/17 20:12:03 mycroft Exp $
16 * Copyright (c) 1998 The NetBSD Foundation, Inc.
17 * All rights reserved.
19 * This code is derived from software contributed to The NetBSD Foundation
20 * by Lennart Augustsson (lennart@augustsson.net) at
21 * Carlstedt Research & Technology.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
26 * 1. Redistributions of source code must retain the above copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * This product includes software developed by the NetBSD
34 * Foundation, Inc. and its contributors.
35 * 4. Neither the name of The NetBSD Foundation nor the names of its
36 * contributors may be used to endorse or promote products derived
37 * from this software without specific prior written permission.
39 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
40 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
41 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
43 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
44 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
45 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
46 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
47 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
48 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
49 * POSSIBILITY OF SUCH DAMAGE.
53 * USB Universal Host Controller driver.
54 * Handles e.g. PIIX3 and PIIX4.
56 * UHCI spec: http://developer.intel.com/design/USB/UHCI11D.htm
57 * USB spec: http://www.usb.org/developers/docs/usbspec.zip
58 * PIIXn spec: ftp://download.intel.com/design/intarch/datashts/29055002.pdf
59 * ftp://download.intel.com/design/intarch/datashts/29056201.pdf
62 #include <sys/param.h>
63 #include <sys/systm.h>
64 #include <sys/kernel.h>
65 #include <sys/malloc.h>
66 #include <sys/endian.h>
67 #include <sys/module.h>
69 #if defined(DIAGNOSTIC) && defined(__i386__)
70 #include <machine/cpu.h>
73 #include <sys/queue.h>
74 #include <sys/sysctl.h>
75 #include <sys/thread2.h>
77 #include <machine/endian.h>
79 #include <bus/usb/usb.h>
80 #include <bus/usb/usbdi.h>
81 #include <bus/usb/usbdivar.h>
82 #include <bus/usb/usb_mem.h>
83 #include <bus/usb/usb_quirks.h>
85 #include <bus/usb/uhcireg.h>
86 #include <bus/usb/uhcivar.h>
88 /* Use bandwidth reclamation for control transfers. Some devices choke on it. */
89 /*#define UHCI_CTL_LOOP */
91 #define delay(d) DELAY(d)
93 #define MS_TO_TICKS(ms) ((ms) * hz / 1000)
97 #define DPRINTF(x) if (uhcidebug) kprintf x
98 #define DPRINTFN(n,x) if (uhcidebug>(n)) kprintf x
101 SYSCTL_NODE(_hw_usb
, OID_AUTO
, uhci
, CTLFLAG_RW
, 0, "USB uhci");
102 SYSCTL_INT(_hw_usb_uhci
, OID_AUTO
, debug
, CTLFLAG_RW
,
103 &uhcidebug
, 0, "uhci debug level");
104 SYSCTL_INT(_hw_usb_uhci
, OID_AUTO
, loop
, CTLFLAG_RW
,
105 &uhcinoloop
, 0, "uhci noloop");
106 #define bitmask_snprintf(q,f,b,l) ksnprintf((b), (l), "%b", (q), (f))
109 #define DPRINTFN(n,x)
113 struct usbd_pipe pipe
;
117 usbd_xfer_handle abortstart
, abortend
;
119 /* Info needed for different pipe kinds. */
125 uhci_soft_td_t
*setup
, *stat
;
132 uhci_soft_qh_t
**qhs
;
142 uhci_soft_td_t
**stds
;
148 static void uhci_globalreset(uhci_softc_t
*);
149 static usbd_status
uhci_portreset(uhci_softc_t
*, int);
150 static void uhci_reset(uhci_softc_t
*);
151 static usbd_status
uhci_run(uhci_softc_t
*, int run
);
152 static uhci_soft_td_t
*uhci_alloc_std(uhci_softc_t
*);
153 static void uhci_free_std(uhci_softc_t
*, uhci_soft_td_t
*);
154 static uhci_soft_qh_t
*uhci_alloc_sqh(uhci_softc_t
*);
155 static void uhci_free_sqh(uhci_softc_t
*, uhci_soft_qh_t
*);
157 static void uhci_enter_ctl_q(uhci_softc_t
*, uhci_soft_qh_t
*,
159 static void uhci_exit_ctl_q(uhci_softc_t
*, uhci_soft_qh_t
*);
162 static void uhci_free_std_chain(uhci_softc_t
*,
163 uhci_soft_td_t
*, uhci_soft_td_t
*);
164 static usbd_status
uhci_alloc_std_chain(struct uhci_pipe
*,
165 uhci_softc_t
*, int, int, u_int16_t
, usb_dma_t
*,
166 uhci_soft_td_t
**, uhci_soft_td_t
**);
167 static void uhci_poll_hub(void *);
168 static void uhci_waitintr(uhci_softc_t
*, usbd_xfer_handle
);
169 static void uhci_check_intr(uhci_softc_t
*, uhci_intr_info_t
*);
170 static void uhci_idone(uhci_intr_info_t
*);
172 static void uhci_abort_xfer(usbd_xfer_handle
, usbd_status status
);
174 static void uhci_timeout(void *);
175 static void uhci_timeout_task(void *);
176 static void uhci_add_ls_ctrl(uhci_softc_t
*, uhci_soft_qh_t
*);
177 static void uhci_add_hs_ctrl(uhci_softc_t
*, uhci_soft_qh_t
*);
178 static void uhci_add_bulk(uhci_softc_t
*, uhci_soft_qh_t
*);
179 static void uhci_remove_ls_ctrl(uhci_softc_t
*,uhci_soft_qh_t
*);
180 static void uhci_remove_hs_ctrl(uhci_softc_t
*,uhci_soft_qh_t
*);
181 static void uhci_remove_bulk(uhci_softc_t
*,uhci_soft_qh_t
*);
182 static int uhci_str(usb_string_descriptor_t
*, int, char *);
183 static void uhci_add_loop(uhci_softc_t
*sc
);
184 static void uhci_rem_loop(uhci_softc_t
*sc
);
186 static usbd_status
uhci_setup_isoc(usbd_pipe_handle pipe
);
187 static void uhci_device_isoc_enter(usbd_xfer_handle
);
189 static usbd_status
uhci_allocm(struct usbd_bus
*, usb_dma_t
*, u_int32_t
);
190 static void uhci_freem(struct usbd_bus
*, usb_dma_t
*);
192 static usbd_xfer_handle
uhci_allocx(struct usbd_bus
*);
193 static void uhci_freex(struct usbd_bus
*, usbd_xfer_handle
);
195 static usbd_status
uhci_device_ctrl_transfer(usbd_xfer_handle
);
196 static usbd_status
uhci_device_ctrl_start(usbd_xfer_handle
);
197 static void uhci_device_ctrl_abort(usbd_xfer_handle
);
198 static void uhci_device_ctrl_close(usbd_pipe_handle
);
199 static void uhci_device_ctrl_done(usbd_xfer_handle
);
201 static usbd_status
uhci_device_intr_transfer(usbd_xfer_handle
);
202 static usbd_status
uhci_device_intr_start(usbd_xfer_handle
);
203 static void uhci_device_intr_abort(usbd_xfer_handle
);
204 static void uhci_device_intr_close(usbd_pipe_handle
);
205 static void uhci_device_intr_done(usbd_xfer_handle
);
207 static usbd_status
uhci_device_bulk_transfer(usbd_xfer_handle
);
208 static usbd_status
uhci_device_bulk_start(usbd_xfer_handle
);
209 static void uhci_device_bulk_abort(usbd_xfer_handle
);
210 static void uhci_device_bulk_close(usbd_pipe_handle
);
211 static void uhci_device_bulk_done(usbd_xfer_handle
);
213 static usbd_status
uhci_device_isoc_transfer(usbd_xfer_handle
);
214 static usbd_status
uhci_device_isoc_start(usbd_xfer_handle
);
215 static void uhci_device_isoc_abort(usbd_xfer_handle
);
216 static void uhci_device_isoc_close(usbd_pipe_handle
);
217 static void uhci_device_isoc_done(usbd_xfer_handle
);
219 static usbd_status
uhci_root_ctrl_transfer(usbd_xfer_handle
);
220 static usbd_status
uhci_root_ctrl_start(usbd_xfer_handle
);
221 static void uhci_root_ctrl_abort(usbd_xfer_handle
);
222 static void uhci_root_ctrl_close(usbd_pipe_handle
);
223 static void uhci_root_ctrl_done(usbd_xfer_handle
);
225 static usbd_status
uhci_root_intr_transfer(usbd_xfer_handle
);
226 static usbd_status
uhci_root_intr_start(usbd_xfer_handle
);
227 static void uhci_root_intr_abort(usbd_xfer_handle
);
228 static void uhci_root_intr_close(usbd_pipe_handle
);
229 static void uhci_root_intr_done(usbd_xfer_handle
);
231 static usbd_status
uhci_open(usbd_pipe_handle
);
232 static void uhci_poll(struct usbd_bus
*);
233 static void uhci_softintr(void *);
235 static usbd_status
uhci_device_request(usbd_xfer_handle xfer
);
237 static void uhci_add_intr(uhci_softc_t
*, uhci_soft_qh_t
*);
238 static void uhci_remove_intr(uhci_softc_t
*, uhci_soft_qh_t
*);
239 static usbd_status
uhci_device_setintr(uhci_softc_t
*sc
,
240 struct uhci_pipe
*pipe
, int ival
);
242 static void uhci_device_clear_toggle(usbd_pipe_handle pipe
);
243 static void uhci_noop(usbd_pipe_handle pipe
);
245 static __inline uhci_soft_qh_t
*uhci_find_prev_qh(uhci_soft_qh_t
*,
249 static void uhci_dump_all(uhci_softc_t
*);
250 static void uhci_dumpregs(uhci_softc_t
*);
251 static void uhci_dump_qhs(uhci_soft_qh_t
*);
252 static void uhci_dump_qh(uhci_soft_qh_t
*);
253 static void uhci_dump_tds(uhci_soft_td_t
*);
254 static void uhci_dump_td(uhci_soft_td_t
*);
255 static void uhci_dump_ii(uhci_intr_info_t
*ii
);
256 void uhci_dump(void);
259 #define UBARR(sc) bus_space_barrier((sc)->iot, (sc)->ioh, 0, (sc)->sc_size, \
260 BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE)
261 #define UWRITE1(sc, r, x) \
262 do { UBARR(sc); bus_space_write_1((sc)->iot, (sc)->ioh, (r), (x)); \
263 } while (/*CONSTCOND*/0)
264 #define UWRITE2(sc, r, x) \
265 do { UBARR(sc); bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)); \
266 } while (/*CONSTCOND*/0)
267 #define UWRITE4(sc, r, x) \
268 do { UBARR(sc); bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)); \
269 } while (/*CONSTCOND*/0)
270 #define UREAD1(sc, r) (UBARR(sc), bus_space_read_1((sc)->iot, (sc)->ioh, (r)))
271 #define UREAD2(sc, r) (UBARR(sc), bus_space_read_2((sc)->iot, (sc)->ioh, (r)))
272 #define UREAD4(sc, r) (UBARR(sc), bus_space_read_4((sc)->iot, (sc)->ioh, (r)))
274 #define UHCICMD(sc, cmd) UWRITE2(sc, UHCI_CMD, cmd)
275 #define UHCISTS(sc) UREAD2(sc, UHCI_STS)
277 #define UHCI_RESET_TIMEOUT 100 /* ms, reset timeout */
279 #define UHCI_CURFRAME(sc) (UREAD2(sc, UHCI_FRNUM) & UHCI_FRNUM_MASK)
281 #define UHCI_INTR_ENDPT 1
283 struct usbd_bus_methods uhci_bus_methods
= {
293 struct usbd_pipe_methods uhci_root_ctrl_methods
= {
294 uhci_root_ctrl_transfer
,
295 uhci_root_ctrl_start
,
296 uhci_root_ctrl_abort
,
297 uhci_root_ctrl_close
,
302 struct usbd_pipe_methods uhci_root_intr_methods
= {
303 uhci_root_intr_transfer
,
304 uhci_root_intr_start
,
305 uhci_root_intr_abort
,
306 uhci_root_intr_close
,
311 struct usbd_pipe_methods uhci_device_ctrl_methods
= {
312 uhci_device_ctrl_transfer
,
313 uhci_device_ctrl_start
,
314 uhci_device_ctrl_abort
,
315 uhci_device_ctrl_close
,
317 uhci_device_ctrl_done
,
320 struct usbd_pipe_methods uhci_device_intr_methods
= {
321 uhci_device_intr_transfer
,
322 uhci_device_intr_start
,
323 uhci_device_intr_abort
,
324 uhci_device_intr_close
,
325 uhci_device_clear_toggle
,
326 uhci_device_intr_done
,
329 struct usbd_pipe_methods uhci_device_bulk_methods
= {
330 uhci_device_bulk_transfer
,
331 uhci_device_bulk_start
,
332 uhci_device_bulk_abort
,
333 uhci_device_bulk_close
,
334 uhci_device_clear_toggle
,
335 uhci_device_bulk_done
,
338 struct usbd_pipe_methods uhci_device_isoc_methods
= {
339 uhci_device_isoc_transfer
,
340 uhci_device_isoc_start
,
341 uhci_device_isoc_abort
,
342 uhci_device_isoc_close
,
344 uhci_device_isoc_done
,
347 #define uhci_add_intr_info(sc, ii) \
348 LIST_INSERT_HEAD(&(sc)->sc_intrhead, (ii), list)
349 #define uhci_del_intr_info(ii) \
351 LIST_REMOVE((ii), list); \
352 (ii)->list.le_prev = NULL; \
354 #define uhci_active_intr_info(ii) ((ii)->list.le_prev != NULL)
356 static __inline uhci_soft_qh_t
*
357 uhci_find_prev_qh(uhci_soft_qh_t
*pqh
, uhci_soft_qh_t
*sqh
)
359 DPRINTFN(15,("uhci_find_prev_qh: pqh=%p sqh=%p\n", pqh
, sqh
));
361 for (; pqh
->hlink
!= sqh
; pqh
= pqh
->hlink
) {
362 #if defined(DIAGNOSTIC) || defined(USB_DEBUG)
363 if (le32toh(pqh
->qh
.qh_hlink
) & UHCI_PTR_T
) {
364 kprintf("uhci_find_prev_qh: QH not found\n");
373 uhci_globalreset(uhci_softc_t
*sc
)
375 UHCICMD(sc
, UHCI_CMD_GRESET
); /* global reset */
376 usb_delay_ms(&sc
->sc_bus
, USB_BUS_RESET_DELAY
); /* wait a little */
377 UHCICMD(sc
, 0); /* do nothing */
381 uhci_init(uhci_softc_t
*sc
)
385 uhci_soft_qh_t
*clsqh
, *chsqh
, *bsqh
, *sqh
, *lsqh
;
388 DPRINTFN(1,("uhci_init: start\n"));
397 UWRITE2(sc
, UHCI_INTR
, 0); /* disable interrupts */
398 uhci_globalreset(sc
); /* reset the controller */
401 /* Allocate and initialize real frame array. */
402 err
= usb_allocmem(&sc
->sc_bus
,
403 UHCI_FRAMELIST_COUNT
* sizeof(uhci_physaddr_t
),
404 UHCI_FRAMELIST_ALIGN
, &sc
->sc_dma
);
407 sc
->sc_pframes
= KERNADDR(&sc
->sc_dma
, 0);
408 UWRITE2(sc
, UHCI_FRNUM
, 0); /* set frame number to 0 */
409 UWRITE4(sc
, UHCI_FLBASEADDR
, DMAADDR(&sc
->sc_dma
, 0)); /* set frame list*/
412 * Allocate a TD, inactive, that hangs from the last QH.
413 * This is to avoid a bug in the PIIX that makes it run berserk
416 std
= uhci_alloc_std(sc
);
419 std
->link
.std
= NULL
;
420 std
->td
.td_link
= htole32(UHCI_PTR_T
);
421 std
->td
.td_status
= htole32(0); /* inactive */
422 std
->td
.td_token
= htole32(0);
423 std
->td
.td_buffer
= htole32(0);
425 /* Allocate the dummy QH marking the end and used for looping the QHs.*/
426 lsqh
= uhci_alloc_sqh(sc
);
430 lsqh
->qh
.qh_hlink
= htole32(UHCI_PTR_T
); /* end of QH chain */
432 lsqh
->qh
.qh_elink
= htole32(std
->physaddr
| UHCI_PTR_TD
);
433 sc
->sc_last_qh
= lsqh
;
435 /* Allocate the dummy QH where bulk traffic will be queued. */
436 bsqh
= uhci_alloc_sqh(sc
);
440 bsqh
->qh
.qh_hlink
= htole32(lsqh
->physaddr
| UHCI_PTR_QH
);
442 bsqh
->qh
.qh_elink
= htole32(UHCI_PTR_T
);
443 sc
->sc_bulk_start
= sc
->sc_bulk_end
= bsqh
;
445 /* Allocate dummy QH where high speed control traffic will be queued. */
446 chsqh
= uhci_alloc_sqh(sc
);
450 chsqh
->qh
.qh_hlink
= htole32(bsqh
->physaddr
| UHCI_PTR_QH
);
452 chsqh
->qh
.qh_elink
= htole32(UHCI_PTR_T
);
453 sc
->sc_hctl_start
= sc
->sc_hctl_end
= chsqh
;
455 /* Allocate dummy QH where control traffic will be queued. */
456 clsqh
= uhci_alloc_sqh(sc
);
460 clsqh
->qh
.qh_hlink
= htole32(chsqh
->physaddr
| UHCI_PTR_QH
);
462 clsqh
->qh
.qh_elink
= htole32(UHCI_PTR_T
);
463 sc
->sc_lctl_start
= sc
->sc_lctl_end
= clsqh
;
466 * Make all (virtual) frame list pointers point to the interrupt
467 * queue heads and the interrupt queue heads at the control
468 * queue head and point the physical frame list to the virtual.
470 for(i
= 0; i
< UHCI_VFRAMELIST_COUNT
; i
++) {
471 std
= uhci_alloc_std(sc
);
472 sqh
= uhci_alloc_sqh(sc
);
473 if (std
== NULL
|| sqh
== NULL
)
477 std
->td
.td_link
= htole32(sqh
->physaddr
| UHCI_PTR_QH
);
478 std
->td
.td_status
= htole32(UHCI_TD_IOS
); /* iso, inactive */
479 std
->td
.td_token
= htole32(0);
480 std
->td
.td_buffer
= htole32(0);
482 sqh
->qh
.qh_hlink
= htole32(clsqh
->physaddr
| UHCI_PTR_QH
);
484 sqh
->qh
.qh_elink
= htole32(UHCI_PTR_T
);
485 sc
->sc_vframes
[i
].htd
= std
;
486 sc
->sc_vframes
[i
].etd
= std
;
487 sc
->sc_vframes
[i
].hqh
= sqh
;
488 sc
->sc_vframes
[i
].eqh
= sqh
;
490 j
< UHCI_FRAMELIST_COUNT
;
491 j
+= UHCI_VFRAMELIST_COUNT
) {
492 sc
->sc_pframes
[j
] = htole32(std
->physaddr
);
496 LIST_INIT(&sc
->sc_intrhead
);
498 STAILQ_INIT(&sc
->sc_free_xfers
);
500 callout_init(&sc
->sc_poll_handle
);
502 /* Set up the bus struct. */
503 sc
->sc_bus
.methods
= &uhci_bus_methods
;
504 sc
->sc_bus
.pipe_size
= sizeof(struct uhci_pipe
);
506 DPRINTFN(1,("uhci_init: enabling\n"));
507 UWRITE2(sc
, UHCI_INTR
, UHCI_INTR_TOCRCIE
| UHCI_INTR_RIE
|
508 UHCI_INTR_IOCE
| UHCI_INTR_SPIE
); /* enable interrupts */
510 UHCICMD(sc
, UHCI_CMD_MAXP
); /* Assume 64 byte packets at frame end */
512 return (uhci_run(sc
, 1)); /* and here we go... */
516 uhci_detach(struct uhci_softc
*sc
, int flags
)
518 usbd_xfer_handle xfer
;
521 UWRITE2(sc
, UHCI_INTR
, 0); /* disable interrupts */
524 /* Free all xfers associated with this HC. */
526 xfer
= STAILQ_FIRST(&sc
->sc_free_xfers
);
529 STAILQ_REMOVE_HEAD(&sc
->sc_free_xfers
, next
);
533 /* XXX free other data structures XXX */
534 usb_freemem(&sc
->sc_bus
, &sc
->sc_dma
);
540 uhci_allocm(struct usbd_bus
*bus
, usb_dma_t
*dma
, u_int32_t size
)
542 return (usb_allocmem(bus
, size
, 0, dma
));
546 uhci_freem(struct usbd_bus
*bus
, usb_dma_t
*dma
)
548 usb_freemem(bus
, dma
);
552 uhci_allocx(struct usbd_bus
*bus
)
554 struct uhci_softc
*sc
= (struct uhci_softc
*)bus
;
555 usbd_xfer_handle xfer
;
557 xfer
= STAILQ_FIRST(&sc
->sc_free_xfers
);
559 STAILQ_REMOVE_HEAD(&sc
->sc_free_xfers
, next
);
561 if (xfer
->busy_free
!= XFER_FREE
) {
562 kprintf("uhci_allocx: xfer=%p not free, 0x%08x\n", xfer
,
567 xfer
= kmalloc(sizeof(struct uhci_xfer
), M_USB
, M_INTWAIT
);
570 memset(xfer
, 0, sizeof (struct uhci_xfer
));
571 UXFER(xfer
)->iinfo
.sc
= sc
;
572 usb_init_task(&UXFER(xfer
)->abort_task
, uhci_timeout_task
,
574 UXFER(xfer
)->uhci_xfer_flags
= 0;
576 UXFER(xfer
)->iinfo
.isdone
= 1;
577 xfer
->busy_free
= XFER_BUSY
;
584 uhci_freex(struct usbd_bus
*bus
, usbd_xfer_handle xfer
)
586 struct uhci_softc
*sc
= (struct uhci_softc
*)bus
;
589 if (xfer
->busy_free
!= XFER_BUSY
) {
590 kprintf("uhci_freex: xfer=%p not busy, 0x%08x\n", xfer
,
594 xfer
->busy_free
= XFER_FREE
;
595 if (!UXFER(xfer
)->iinfo
.isdone
) {
596 kprintf("uhci_freex: !isdone\n");
600 STAILQ_INSERT_HEAD(&sc
->sc_free_xfers
, xfer
, next
);
604 * Shut down the controller when the system is going down.
607 uhci_shutdown(void *v
)
609 uhci_softc_t
*sc
= v
;
611 DPRINTF(("uhci_shutdown: stopping the HC\n"));
612 uhci_run(sc
, 0); /* stop the controller */
616 * Handle suspend/resume.
618 * We need to switch to polling mode here, because this routine is
619 * called from an interrupt context. This is all right since we
620 * are almost suspended anyway.
623 uhci_power(int why
, void *v
)
625 uhci_softc_t
*sc
= v
;
629 cmd
= UREAD2(sc
, UHCI_CMD
);
631 DPRINTF(("uhci_power: sc=%p, why=%d (was %d), cmd=0x%x\n",
632 sc
, why
, sc
->sc_suspend
, cmd
));
634 if (why
!= PWR_RESUME
) {
639 if (sc
->sc_intr_xfer
!= NULL
)
640 callout_stop(&sc
->sc_poll_handle
);
641 sc
->sc_bus
.use_polling
++;
642 uhci_run(sc
, 0); /* stop the controller */
644 /* save some state if BIOS doesn't */
645 sc
->sc_saved_frnum
= UREAD2(sc
, UHCI_FRNUM
);
646 sc
->sc_saved_sof
= UREAD1(sc
, UHCI_SOF
);
648 UWRITE2(sc
, UHCI_INTR
, 0); /* disable intrs */
650 UHCICMD(sc
, cmd
| UHCI_CMD_EGSM
); /* enter global suspend */
651 usb_delay_ms(&sc
->sc_bus
, USB_RESUME_WAIT
);
652 sc
->sc_suspend
= why
;
653 sc
->sc_bus
.use_polling
--;
654 DPRINTF(("uhci_power: cmd=0x%x\n", UREAD2(sc
, UHCI_CMD
)));
657 if (sc
->sc_suspend
== PWR_RESUME
)
658 kprintf("uhci_power: weird, resume without suspend.\n");
660 sc
->sc_bus
.use_polling
++;
661 sc
->sc_suspend
= why
;
662 UWRITE2(sc
, UHCI_INTR
, 0); /* disable interrupts */
663 uhci_globalreset(sc
); /* reset the controller */
665 if (cmd
& UHCI_CMD_RS
)
666 uhci_run(sc
, 0); /* in case BIOS has started it */
668 uhci_globalreset(sc
);
671 /* restore saved state */
672 UWRITE4(sc
, UHCI_FLBASEADDR
, DMAADDR(&sc
->sc_dma
, 0));
673 UWRITE2(sc
, UHCI_FRNUM
, sc
->sc_saved_frnum
);
674 UWRITE1(sc
, UHCI_SOF
, sc
->sc_saved_sof
);
676 UHCICMD(sc
, cmd
| UHCI_CMD_FGR
); /* force global resume */
677 usb_delay_ms(&sc
->sc_bus
, USB_RESUME_DELAY
);
678 UHCICMD(sc
, cmd
& ~UHCI_CMD_EGSM
); /* back to normal */
679 UWRITE2(sc
, UHCI_INTR
, UHCI_INTR_TOCRCIE
| UHCI_INTR_RIE
|
680 UHCI_INTR_IOCE
| UHCI_INTR_SPIE
); /* re-enable intrs */
681 UHCICMD(sc
, UHCI_CMD_MAXP
);
682 uhci_run(sc
, 1); /* and start traffic again */
683 usb_delay_ms(&sc
->sc_bus
, USB_RESUME_RECOVERY
);
684 sc
->sc_bus
.use_polling
--;
685 if (sc
->sc_intr_xfer
!= NULL
)
686 callout_reset(&sc
->sc_poll_handle
, sc
->sc_ival
,
687 uhci_poll_hub
, sc
->sc_intr_xfer
);
698 uhci_dumpregs(uhci_softc_t
*sc
)
700 DPRINTFN(-1,("%s regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, "
701 "flbase=%08x, sof=%04x, portsc1=%04x, portsc2=%04x\n",
702 device_get_nameunit(sc
->sc_bus
.bdev
),
703 UREAD2(sc
, UHCI_CMD
),
704 UREAD2(sc
, UHCI_STS
),
705 UREAD2(sc
, UHCI_INTR
),
706 UREAD2(sc
, UHCI_FRNUM
),
707 UREAD4(sc
, UHCI_FLBASEADDR
),
708 UREAD1(sc
, UHCI_SOF
),
709 UREAD2(sc
, UHCI_PORTSC1
),
710 UREAD2(sc
, UHCI_PORTSC2
)));
714 uhci_dump_td(uhci_soft_td_t
*p
)
716 char sbuf
[128], sbuf2
[128];
718 DPRINTFN(-1,("TD(%p) at %08lx = link=0x%08lx status=0x%08lx "
719 "token=0x%08lx buffer=0x%08lx\n",
720 p
, (long)p
->physaddr
,
721 (long)le32toh(p
->td
.td_link
),
722 (long)le32toh(p
->td
.td_status
),
723 (long)le32toh(p
->td
.td_token
),
724 (long)le32toh(p
->td
.td_buffer
)));
726 bitmask_snprintf((u_int32_t
)le32toh(p
->td
.td_link
), "\20\1T\2Q\3VF",
728 bitmask_snprintf((u_int32_t
)le32toh(p
->td
.td_status
),
729 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27"
730 "STALLED\30ACTIVE\31IOC\32ISO\33LS\36SPD",
731 sbuf2
, sizeof(sbuf2
));
733 DPRINTFN(-1,(" %s %s,errcnt=%d,actlen=%d pid=%02x,addr=%d,endpt=%d,"
734 "D=%d,maxlen=%d\n", sbuf
, sbuf2
,
735 UHCI_TD_GET_ERRCNT(le32toh(p
->td
.td_status
)),
736 UHCI_TD_GET_ACTLEN(le32toh(p
->td
.td_status
)),
737 UHCI_TD_GET_PID(le32toh(p
->td
.td_token
)),
738 UHCI_TD_GET_DEVADDR(le32toh(p
->td
.td_token
)),
739 UHCI_TD_GET_ENDPT(le32toh(p
->td
.td_token
)),
740 UHCI_TD_GET_DT(le32toh(p
->td
.td_token
)),
741 UHCI_TD_GET_MAXLEN(le32toh(p
->td
.td_token
))));
745 uhci_dump_qh(uhci_soft_qh_t
*sqh
)
747 DPRINTFN(-1,("QH(%p) at %08x: hlink=%08x elink=%08x\n", sqh
,
748 (int)sqh
->physaddr
, le32toh(sqh
->qh
.qh_hlink
),
749 le32toh(sqh
->qh
.qh_elink
)));
756 uhci_dump_all(thesc
);
761 uhci_dump_all(uhci_softc_t
*sc
)
764 kprintf("intrs=%d\n", sc
->sc_bus
.no_intrs
);
765 /*kprintf("framelist[i].link = %08x\n", sc->sc_framelist[0].link);*/
766 uhci_dump_qh(sc
->sc_lctl_start
);
770 uhci_dump_qhs(uhci_soft_qh_t
*sqh
)
774 /* uhci_dump_qhs displays all the QHs and TDs from the given QH onwards
775 * Traverses sideways first, then down.
785 * TD2.x being the TDs queued at QH2 and QH1 being referenced from QH1.
789 if (sqh
->hlink
!= NULL
&& !(le32toh(sqh
->qh
.qh_hlink
) & UHCI_PTR_T
))
790 uhci_dump_qhs(sqh
->hlink
);
792 DPRINTF(("No QH\n"));
794 if (sqh
->elink
!= NULL
&& !(le32toh(sqh
->qh
.qh_elink
) & UHCI_PTR_T
))
795 uhci_dump_tds(sqh
->elink
);
797 DPRINTF(("No TD\n"));
801 uhci_dump_tds(uhci_soft_td_t
*std
)
805 for(td
= std
; td
!= NULL
; td
= td
->link
.std
) {
808 /* Check whether the link pointer in this TD marks
809 * the link pointer as end of queue. This avoids
810 * printing the free list in case the queue/TD has
811 * already been moved there (seatbelt).
813 if (le32toh(td
->td
.td_link
) & UHCI_PTR_T
||
814 le32toh(td
->td
.td_link
) == 0)
820 uhci_dump_ii(uhci_intr_info_t
*ii
)
822 usbd_pipe_handle pipe
;
823 usb_endpoint_descriptor_t
*ed
;
824 usbd_device_handle dev
;
827 #define DONE ii->isdone
832 kprintf("ii NULL\n");
835 if (ii
->xfer
== NULL
) {
836 kprintf("ii %p: done=%d xfer=NULL\n",
840 pipe
= ii
->xfer
->pipe
;
842 kprintf("ii %p: done=%d xfer=%p pipe=NULL\n",
846 if (pipe
->endpoint
== NULL
) {
847 kprintf("ii %p: done=%d xfer=%p pipe=%p pipe->endpoint=NULL\n",
848 ii
, DONE
, ii
->xfer
, pipe
);
851 if (pipe
->device
== NULL
) {
852 kprintf("ii %p: done=%d xfer=%p pipe=%p pipe->device=NULL\n",
853 ii
, DONE
, ii
->xfer
, pipe
);
856 ed
= pipe
->endpoint
->edesc
;
858 kprintf("ii %p: done=%d xfer=%p dev=%p vid=0x%04x pid=0x%04x addr=%d pipe=%p ep=0x%02x attr=0x%02x\n",
859 ii
, DONE
, ii
->xfer
, dev
,
860 UGETW(dev
->ddesc
.idVendor
),
861 UGETW(dev
->ddesc
.idProduct
),
863 ed
->bEndpointAddress
, ed
->bmAttributes
);
867 void uhci_dump_iis(struct uhci_softc
*sc
);
869 uhci_dump_iis(struct uhci_softc
*sc
)
871 uhci_intr_info_t
*ii
;
873 kprintf("intr_info list:\n");
874 for (ii
= LIST_FIRST(&sc
->sc_intrhead
); ii
; ii
= LIST_NEXT(ii
, list
))
879 void iidump(void) { uhci_dump_iis(thesc
); }
884 * This routine is executed periodically and simulates interrupts
885 * from the root controller interrupt pipe for port status change.
888 uhci_poll_hub(void *addr
)
890 usbd_xfer_handle xfer
= addr
;
891 usbd_pipe_handle pipe
= xfer
->pipe
;
892 uhci_softc_t
*sc
= (uhci_softc_t
*)pipe
->device
->bus
;
895 DPRINTFN(20, ("uhci_poll_hub\n"));
897 callout_reset(&sc
->sc_poll_handle
, sc
->sc_ival
, uhci_poll_hub
, xfer
);
899 p
= KERNADDR(&xfer
->dmabuf
, 0);
901 if (UREAD2(sc
, UHCI_PORTSC1
) & (UHCI_PORTSC_CSC
|UHCI_PORTSC_OCIC
))
903 if (UREAD2(sc
, UHCI_PORTSC2
) & (UHCI_PORTSC_CSC
|UHCI_PORTSC_OCIC
))
906 /* No change, try again in a while */
910 xfer
->status
= USBD_NORMAL_COMPLETION
;
912 xfer
->device
->bus
->intr_context
++;
913 usb_transfer_complete(xfer
);
914 xfer
->device
->bus
->intr_context
--;
919 uhci_root_intr_done(usbd_xfer_handle xfer
)
924 uhci_root_ctrl_done(usbd_xfer_handle xfer
)
929 * Let the last QH loop back to the high speed control transfer QH.
930 * This is what intel calls "bandwidth reclamation" and improves
931 * USB performance a lot for some devices.
932 * If we are already looping, just count it.
935 uhci_add_loop(uhci_softc_t
*sc
) {
940 if (++sc
->sc_loops
== 1) {
941 DPRINTFN(5,("uhci_start_loop: add\n"));
942 /* Note, we don't loop back the soft pointer. */
943 sc
->sc_last_qh
->qh
.qh_hlink
=
944 htole32(sc
->sc_hctl_start
->physaddr
| UHCI_PTR_QH
);
949 uhci_rem_loop(uhci_softc_t
*sc
) {
954 if (--sc
->sc_loops
== 0) {
955 DPRINTFN(5,("uhci_end_loop: remove\n"));
956 sc
->sc_last_qh
->qh
.qh_hlink
= htole32(UHCI_PTR_T
);
960 /* Add high speed control QH, called from a critical section. */
962 uhci_add_hs_ctrl(uhci_softc_t
*sc
, uhci_soft_qh_t
*sqh
)
966 DPRINTFN(10, ("uhci_add_ctrl: sqh=%p\n", sqh
));
967 eqh
= sc
->sc_hctl_end
;
968 sqh
->hlink
= eqh
->hlink
;
969 sqh
->qh
.qh_hlink
= eqh
->qh
.qh_hlink
;
971 eqh
->qh
.qh_hlink
= htole32(sqh
->physaddr
| UHCI_PTR_QH
);
972 sc
->sc_hctl_end
= sqh
;
978 /* Remove high speed control QH, called from a critical section. */
980 uhci_remove_hs_ctrl(uhci_softc_t
*sc
, uhci_soft_qh_t
*sqh
)
984 DPRINTFN(10, ("uhci_remove_hs_ctrl: sqh=%p\n", sqh
));
989 * The T bit should be set in the elink of the QH so that the HC
990 * doesn't follow the pointer. This condition may fail if the
991 * the transferred packet was short so that the QH still points
992 * at the last used TD.
993 * In this case we set the T bit and wait a little for the HC
994 * to stop looking at the TD.
996 if (!(sqh
->qh
.qh_elink
& htole32(UHCI_PTR_T
))) {
997 sqh
->qh
.qh_elink
= htole32(UHCI_PTR_T
);
998 delay(UHCI_QH_REMOVE_DELAY
);
1001 pqh
= uhci_find_prev_qh(sc
->sc_hctl_start
, sqh
);
1002 pqh
->hlink
= sqh
->hlink
;
1003 pqh
->qh
.qh_hlink
= sqh
->qh
.qh_hlink
;
1004 delay(UHCI_QH_REMOVE_DELAY
);
1005 if (sc
->sc_hctl_end
== sqh
)
1006 sc
->sc_hctl_end
= pqh
;
1009 /* Add low speed control QH, called from a critical section. */
1011 uhci_add_ls_ctrl(uhci_softc_t
*sc
, uhci_soft_qh_t
*sqh
)
1013 uhci_soft_qh_t
*eqh
;
1015 DPRINTFN(10, ("uhci_add_ls_ctrl: sqh=%p\n", sqh
));
1016 eqh
= sc
->sc_lctl_end
;
1017 sqh
->hlink
= eqh
->hlink
;
1018 sqh
->qh
.qh_hlink
= eqh
->qh
.qh_hlink
;
1020 eqh
->qh
.qh_hlink
= htole32(sqh
->physaddr
| UHCI_PTR_QH
);
1021 sc
->sc_lctl_end
= sqh
;
1024 /* Remove low speed control QH, called from a critical section. */
1026 uhci_remove_ls_ctrl(uhci_softc_t
*sc
, uhci_soft_qh_t
*sqh
)
1028 uhci_soft_qh_t
*pqh
;
1030 DPRINTFN(10, ("uhci_remove_ls_ctrl: sqh=%p\n", sqh
));
1031 /* See comment in uhci_remove_hs_ctrl() */
1032 if (!(sqh
->qh
.qh_elink
& htole32(UHCI_PTR_T
))) {
1033 sqh
->qh
.qh_elink
= htole32(UHCI_PTR_T
);
1034 delay(UHCI_QH_REMOVE_DELAY
);
1036 pqh
= uhci_find_prev_qh(sc
->sc_lctl_start
, sqh
);
1037 pqh
->hlink
= sqh
->hlink
;
1038 pqh
->qh
.qh_hlink
= sqh
->qh
.qh_hlink
;
1039 delay(UHCI_QH_REMOVE_DELAY
);
1040 if (sc
->sc_lctl_end
== sqh
)
1041 sc
->sc_lctl_end
= pqh
;
1044 /* Add bulk QH, called from a critical section. */
1046 uhci_add_bulk(uhci_softc_t
*sc
, uhci_soft_qh_t
*sqh
)
1048 uhci_soft_qh_t
*eqh
;
1050 DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh
));
1051 eqh
= sc
->sc_bulk_end
;
1052 sqh
->hlink
= eqh
->hlink
;
1053 sqh
->qh
.qh_hlink
= eqh
->qh
.qh_hlink
;
1055 eqh
->qh
.qh_hlink
= htole32(sqh
->physaddr
| UHCI_PTR_QH
);
1056 sc
->sc_bulk_end
= sqh
;
1060 /* Remove bulk QH, called from a critical section. */
1062 uhci_remove_bulk(uhci_softc_t
*sc
, uhci_soft_qh_t
*sqh
)
1064 uhci_soft_qh_t
*pqh
;
1066 DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh
));
1068 /* See comment in uhci_remove_hs_ctrl() */
1069 if (!(sqh
->qh
.qh_elink
& htole32(UHCI_PTR_T
))) {
1070 sqh
->qh
.qh_elink
= htole32(UHCI_PTR_T
);
1071 delay(UHCI_QH_REMOVE_DELAY
);
1073 pqh
= uhci_find_prev_qh(sc
->sc_bulk_start
, sqh
);
1074 pqh
->hlink
= sqh
->hlink
;
1075 pqh
->qh
.qh_hlink
= sqh
->qh
.qh_hlink
;
1076 delay(UHCI_QH_REMOVE_DELAY
);
1077 if (sc
->sc_bulk_end
== sqh
)
1078 sc
->sc_bulk_end
= pqh
;
1081 static int uhci_intr1(uhci_softc_t
*);
1084 uhci_intr(void *arg
)
1086 uhci_softc_t
*sc
= arg
;
1088 if (sc
->sc_dying
|| (sc
->sc_flags
& UHCI_SCFLG_DONEINIT
) == 0)
1091 DPRINTFN(15,("uhci_intr: real interrupt\n"));
1092 if (sc
->sc_bus
.use_polling
) {
1094 DPRINTFN(16, ("uhci_intr: ignored interrupt while polling\n"));
1099 return (uhci_intr1(sc
));
1103 uhci_intr1(uhci_softc_t
*sc
)
1110 * It can happen that an interrupt will be delivered to
1111 * us before the device has been fully attached and the
1112 * softc struct has been configured. Usually this happens
1113 * when kldloading the USB support as a module after the
1114 * system has been booted. If we detect this condition,
1115 * we need to squelch the unwanted interrupts until we're
1118 if (sc
->sc_bus
.bdev
== NULL
) {
1119 UWRITE2(sc
, UHCI_STS
, 0xFFFF); /* ack pending interrupts */
1120 uhci_run(sc
, 0); /* stop the controller */
1121 UWRITE2(sc
, UHCI_INTR
, 0); /* disable interrupts */
1126 if (uhcidebug
> 15) {
1127 DPRINTF(("%s: uhci_intr1\n", device_get_nameunit(sc
->sc_bus
.bdev
)));
1131 status
= UREAD2(sc
, UHCI_STS
) & UHCI_STS_ALLINTRS
;
1132 if (status
== 0) /* The interrupt was not for us. */
1135 if (sc
->sc_suspend
!= PWR_RESUME
) {
1136 kprintf("%s: interrupt while not operating ignored\n",
1137 device_get_nameunit(sc
->sc_bus
.bdev
));
1138 UWRITE2(sc
, UHCI_STS
, status
); /* acknowledge the ints */
1143 if (status
& UHCI_STS_USBINT
)
1144 ack
|= UHCI_STS_USBINT
;
1145 if (status
& UHCI_STS_USBEI
)
1146 ack
|= UHCI_STS_USBEI
;
1147 if (status
& UHCI_STS_RD
) {
1150 kprintf("%s: resume detect\n", device_get_nameunit(sc
->sc_bus
.bdev
));
1153 if (status
& UHCI_STS_HSE
) {
1154 ack
|= UHCI_STS_HSE
;
1155 kprintf("%s: host system error\n", device_get_nameunit(sc
->sc_bus
.bdev
));
1157 if (status
& UHCI_STS_HCPE
) {
1158 ack
|= UHCI_STS_HCPE
;
1159 kprintf("%s: host controller process error\n",
1160 device_get_nameunit(sc
->sc_bus
.bdev
));
1162 if (status
& UHCI_STS_HCH
) {
1163 /* no acknowledge needed */
1164 if (!sc
->sc_dying
) {
1165 kprintf("%s: host controller halted\n",
1166 device_get_nameunit(sc
->sc_bus
.bdev
));
1175 return (0); /* nothing to acknowledge */
1176 UWRITE2(sc
, UHCI_STS
, ack
); /* acknowledge the ints */
1178 sc
->sc_bus
.no_intrs
++;
1179 usb_schedsoftintr(&sc
->sc_bus
);
1181 DPRINTFN(15, ("%s: uhci_intr: exit\n", device_get_nameunit(sc
->sc_bus
.bdev
)));
1187 uhci_softintr(void *v
)
1189 uhci_softc_t
*sc
= v
;
1190 uhci_intr_info_t
*ii
, *nextii
;
1192 DPRINTFN(10,("%s: uhci_softintr (%d)\n", device_get_nameunit(sc
->sc_bus
.bdev
),
1193 sc
->sc_bus
.intr_context
));
1195 sc
->sc_bus
.intr_context
++;
1198 * Interrupts on UHCI really suck. When the host controller
1199 * interrupts because a transfer is completed there is no
1200 * way of knowing which transfer it was. You can scan down
1201 * the TDs and QHs of the previous frame to limit the search,
1202 * but that assumes that the interrupt was not delayed by more
1203 * than 1 ms, which may not always be true (e.g. after debug
1204 * output on a slow console).
1205 * We scan all interrupt descriptors to see if any have
1208 LIST_FOREACH_MUTABLE(ii
, &sc
->sc_intrhead
, list
, nextii
)
1209 uhci_check_intr(sc
, ii
);
1211 #ifdef USB_USE_SOFTINTR
1212 if (sc
->sc_softwake
) {
1213 sc
->sc_softwake
= 0;
1214 wakeup(&sc
->sc_softwake
);
1216 #endif /* USB_USE_SOFTINTR */
1218 sc
->sc_bus
.intr_context
--;
1221 /* Check for an interrupt. */
1223 uhci_check_intr(uhci_softc_t
*sc
, uhci_intr_info_t
*ii
)
1225 uhci_soft_td_t
*std
, *lstd
;
1228 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii
));
1231 kprintf("uhci_check_intr: no ii? %p\n", ii
);
1235 if (ii
->xfer
->status
== USBD_CANCELLED
||
1236 ii
->xfer
->status
== USBD_TIMEOUT
) {
1237 DPRINTF(("uhci_check_intr: aborted xfer=%p\n", ii
->xfer
));
1241 if (ii
->stdstart
== NULL
)
1246 kprintf("uhci_check_intr: std==0\n");
1251 * If the last TD is still active we need to check whether there
1252 * is an error somewhere in the middle, or whether there was a
1253 * short packet (SPD and not ACTIVE).
1255 if (le32toh(lstd
->td
.td_status
) & UHCI_TD_ACTIVE
) {
1256 DPRINTFN(12, ("uhci_check_intr: active ii=%p\n", ii
));
1257 for (std
= ii
->stdstart
; std
!= lstd
; std
= std
->link
.std
) {
1258 status
= le32toh(std
->td
.td_status
);
1259 /* If there's an active TD the xfer isn't done. */
1260 if (status
& UHCI_TD_ACTIVE
)
1262 /* Any kind of error makes the xfer done. */
1263 if (status
& UHCI_TD_STALLED
)
1265 /* We want short packets, and it is short: it's done */
1266 if ((status
& UHCI_TD_SPD
) &&
1267 UHCI_TD_GET_ACTLEN(status
) <
1268 UHCI_TD_GET_MAXLEN(le32toh(std
->td
.td_token
))) {
1272 DPRINTFN(12, ("uhci_check_intr: ii=%p std=%p still active\n",
1277 DPRINTFN(12, ("uhci_check_intr: ii=%p done\n", ii
));
1278 callout_stop(&ii
->xfer
->timeout_handle
);
1279 usb_rem_task(ii
->xfer
->pipe
->device
, &UXFER(ii
->xfer
)->abort_task
);
1283 /* Called from a critical section. */
1285 uhci_idone(uhci_intr_info_t
*ii
)
1287 usbd_xfer_handle xfer
= ii
->xfer
;
1288 struct uhci_pipe
*upipe
= (struct uhci_pipe
*)xfer
->pipe
;
1289 uhci_soft_td_t
*std
;
1290 u_int32_t status
= 0, nstatus
;
1293 DPRINTFN(12, ("uhci_idone: ii=%p\n", ii
));
1300 kprintf("uhci_idone: ii is done!\n ");
1303 kprintf("uhci_idone: ii=%p is done!\n", ii
);
1312 if (xfer
->nframes
!= 0) {
1313 /* Isoc transfer, do things differently. */
1314 uhci_soft_td_t
**stds
= upipe
->u
.iso
.stds
;
1315 int i
, n
, nframes
, len
;
1317 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii
));
1319 nframes
= xfer
->nframes
;
1321 n
= UXFER(xfer
)->curframe
;
1322 for (i
= 0; i
< nframes
; i
++) {
1325 if (uhcidebug
> 5) {
1326 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i
));
1330 if (++n
>= UHCI_VFRAMELIST_COUNT
)
1332 status
= le32toh(std
->td
.td_status
);
1333 len
= UHCI_TD_GET_ACTLEN(status
);
1334 xfer
->frlengths
[i
] = len
;
1337 upipe
->u
.iso
.inuse
-= nframes
;
1338 xfer
->actlen
= actlen
;
1339 xfer
->status
= USBD_NORMAL_COMPLETION
;
1344 DPRINTFN(10, ("uhci_idone: ii=%p, xfer=%p, pipe=%p ready\n",
1347 uhci_dump_tds(ii
->stdstart
);
1350 /* The transfer is done, compute actual length and status. */
1352 for (std
= ii
->stdstart
; std
!= NULL
; std
= std
->link
.std
) {
1353 nstatus
= le32toh(std
->td
.td_status
);
1354 if (nstatus
& UHCI_TD_ACTIVE
)
1358 if (UHCI_TD_GET_PID(le32toh(std
->td
.td_token
)) !=
1359 UHCI_TD_PID_SETUP
) {
1360 actlen
+= UHCI_TD_GET_ACTLEN(status
);
1363 * UHCI will report CRCTO in addition to a STALL or NAK
1364 * for a SETUP transaction. See section 3.2.2, "TD
1365 * CONTROL AND STATUS".
1367 if (status
& (UHCI_TD_STALLED
| UHCI_TD_NAK
))
1368 status
&= ~UHCI_TD_CRCTO
;
1372 /* If there are left over TDs we need to update the toggle. */
1374 upipe
->nexttoggle
= UHCI_TD_GET_DT(le32toh(std
->td
.td_token
));
1376 status
&= UHCI_TD_ERROR
;
1377 DPRINTFN(10, ("uhci_idone: actlen=%d, status=0x%x\n",
1379 xfer
->actlen
= actlen
;
1384 bitmask_snprintf((u_int32_t
)status
,
1385 "\20\22BITSTUFF\23CRCTO\24NAK\25"
1386 "BABBLE\26DBUFFER\27STALLED\30ACTIVE",
1387 sbuf
, sizeof(sbuf
));
1389 DPRINTFN((status
== UHCI_TD_STALLED
)*10,
1390 ("uhci_idone: error, addr=%d, endpt=0x%02x, "
1392 xfer
->pipe
->device
->address
,
1393 xfer
->pipe
->endpoint
->edesc
->bEndpointAddress
,
1396 if (status
== UHCI_TD_STALLED
)
1397 xfer
->status
= USBD_STALLED
;
1399 xfer
->status
= USBD_IOERROR
; /* more info XXX */
1401 xfer
->status
= USBD_NORMAL_COMPLETION
;
1405 usb_transfer_complete(xfer
);
1406 DPRINTFN(12, ("uhci_idone: ii=%p done\n", ii
));
1410 * Called when a request does not complete.
1413 uhci_timeout(void *addr
)
1415 uhci_intr_info_t
*ii
= addr
;
1416 struct uhci_xfer
*uxfer
= UXFER(ii
->xfer
);
1417 struct uhci_pipe
*upipe
= (struct uhci_pipe
*)uxfer
->xfer
.pipe
;
1418 uhci_softc_t
*sc
= (uhci_softc_t
*)upipe
->pipe
.device
->bus
;
1420 DPRINTF(("uhci_timeout: uxfer=%p\n", uxfer
));
1423 uhci_abort_xfer(&uxfer
->xfer
, USBD_TIMEOUT
);
1427 /* Execute the abort in a process context. */
1428 usb_add_task(uxfer
->xfer
.pipe
->device
, &uxfer
->abort_task
,
1433 uhci_timeout_task(void *addr
)
1435 usbd_xfer_handle xfer
= addr
;
1437 DPRINTF(("uhci_timeout_task: xfer=%p\n", xfer
));
1440 uhci_abort_xfer(xfer
, USBD_TIMEOUT
);
1445 * Wait here until controller claims to have an interrupt.
1446 * Then call uhci_intr and return. Use timeout to avoid waiting
1448 * Only used during boot when interrupts are not enabled yet.
1451 uhci_waitintr(uhci_softc_t
*sc
, usbd_xfer_handle xfer
)
1453 int timo
= xfer
->timeout
;
1454 uhci_intr_info_t
*ii
;
1456 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo
));
1458 xfer
->status
= USBD_IN_PROGRESS
;
1459 for (; timo
>= 0; timo
--) {
1460 usb_delay_ms(&sc
->sc_bus
, 1);
1461 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc
, UHCI_STS
)));
1462 if (UREAD2(sc
, UHCI_STS
) & UHCI_STS_ALLINTRS
)
1464 if (xfer
->status
!= USBD_IN_PROGRESS
)
1469 DPRINTF(("uhci_waitintr: timeout\n"));
1470 for (ii
= LIST_FIRST(&sc
->sc_intrhead
);
1471 ii
!= NULL
&& ii
->xfer
!= xfer
;
1472 ii
= LIST_NEXT(ii
, list
))
1476 panic("uhci_waitintr: lost intr_info");
1482 uhci_poll(struct usbd_bus
*bus
)
1484 uhci_softc_t
*sc
= (uhci_softc_t
*)bus
;
1486 if (UREAD2(sc
, UHCI_STS
) & UHCI_STS_ALLINTRS
)
1491 uhci_reset(uhci_softc_t
*sc
)
1495 UHCICMD(sc
, UHCI_CMD_HCRESET
);
1496 /* The reset bit goes low when the controller is done. */
1497 for (n
= 0; n
< UHCI_RESET_TIMEOUT
&&
1498 (UREAD2(sc
, UHCI_CMD
) & UHCI_CMD_HCRESET
); n
++)
1499 usb_delay_ms(&sc
->sc_bus
, 1);
1500 if (n
>= UHCI_RESET_TIMEOUT
)
1501 kprintf("%s: controller did not reset\n",
1502 device_get_nameunit(sc
->sc_bus
.bdev
));
1506 uhci_run(uhci_softc_t
*sc
, int run
)
1513 DPRINTF(("uhci_run: setting run=%d\n", run
));
1514 cmd
= UREAD2(sc
, UHCI_CMD
);
1518 cmd
&= ~UHCI_CMD_RS
;
1520 for(n
= 0; n
< 10; n
++) {
1521 running
= !(UREAD2(sc
, UHCI_STS
) & UHCI_STS_HCH
);
1522 /* return when we've entered the state we want */
1523 if (run
== running
) {
1525 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n",
1526 UREAD2(sc
, UHCI_CMD
), UREAD2(sc
, UHCI_STS
)));
1527 return (USBD_NORMAL_COMPLETION
);
1529 usb_delay_ms(&sc
->sc_bus
, 1);
1532 kprintf("%s: cannot %s\n", device_get_nameunit(sc
->sc_bus
.bdev
),
1533 run
? "start" : "stop");
1534 return (USBD_IOERROR
);
1538 * Memory management routines.
1539 * uhci_alloc_std allocates TDs
1540 * uhci_alloc_sqh allocates QHs
1541 * These two routines do their own free list management,
1542 * partly for speed, partly because allocating DMAable memory
1543 * has page size granularaity so much memory would be wasted if
1544 * only one TD/QH (32 bytes) was placed in each allocated chunk.
1548 uhci_alloc_std(uhci_softc_t
*sc
)
1550 uhci_soft_td_t
*std
;
1555 if (sc
->sc_freetds
== NULL
) {
1556 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n"));
1557 err
= usb_allocmem(&sc
->sc_bus
, UHCI_STD_SIZE
* UHCI_STD_CHUNK
,
1558 UHCI_TD_ALIGN
, &dma
);
1561 for(i
= 0; i
< UHCI_STD_CHUNK
; i
++) {
1562 offs
= i
* UHCI_STD_SIZE
;
1563 std
= KERNADDR(&dma
, offs
);
1564 std
->physaddr
= DMAADDR(&dma
, offs
);
1565 std
->link
.std
= sc
->sc_freetds
;
1566 sc
->sc_freetds
= std
;
1569 std
= sc
->sc_freetds
;
1570 sc
->sc_freetds
= std
->link
.std
;
1571 memset(&std
->td
, 0, sizeof(uhci_td_t
));
1576 uhci_free_std(uhci_softc_t
*sc
, uhci_soft_td_t
*std
)
1579 #define TD_IS_FREE 0x12345678
1580 if (le32toh(std
->td
.td_token
) == TD_IS_FREE
) {
1581 kprintf("uhci_free_std: freeing free TD %p\n", std
);
1584 std
->td
.td_token
= htole32(TD_IS_FREE
);
1586 std
->link
.std
= sc
->sc_freetds
;
1587 sc
->sc_freetds
= std
;
1591 uhci_alloc_sqh(uhci_softc_t
*sc
)
1593 uhci_soft_qh_t
*sqh
;
1598 if (sc
->sc_freeqhs
== NULL
) {
1599 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n"));
1600 err
= usb_allocmem(&sc
->sc_bus
, UHCI_SQH_SIZE
* UHCI_SQH_CHUNK
,
1601 UHCI_QH_ALIGN
, &dma
);
1604 for(i
= 0; i
< UHCI_SQH_CHUNK
; i
++) {
1605 offs
= i
* UHCI_SQH_SIZE
;
1606 sqh
= KERNADDR(&dma
, offs
);
1607 sqh
->physaddr
= DMAADDR(&dma
, offs
);
1608 sqh
->hlink
= sc
->sc_freeqhs
;
1609 sc
->sc_freeqhs
= sqh
;
1612 sqh
= sc
->sc_freeqhs
;
1613 sc
->sc_freeqhs
= sqh
->hlink
;
1614 memset(&sqh
->qh
, 0, sizeof(uhci_qh_t
));
1619 uhci_free_sqh(uhci_softc_t
*sc
, uhci_soft_qh_t
*sqh
)
1621 sqh
->hlink
= sc
->sc_freeqhs
;
1622 sc
->sc_freeqhs
= sqh
;
1626 uhci_free_std_chain(uhci_softc_t
*sc
, uhci_soft_td_t
*std
,
1627 uhci_soft_td_t
*stdend
)
1631 for (; std
!= stdend
; std
= p
) {
1633 uhci_free_std(sc
, std
);
1638 uhci_alloc_std_chain(struct uhci_pipe
*upipe
, uhci_softc_t
*sc
, int len
,
1639 int rd
, u_int16_t flags
, usb_dma_t
*dma
,
1640 uhci_soft_td_t
**sp
, uhci_soft_td_t
**ep
)
1642 uhci_soft_td_t
*p
, *lastp
;
1643 uhci_physaddr_t lastlink
;
1644 int i
, ntd
, l
, tog
, maxp
;
1646 int addr
= upipe
->pipe
.device
->address
;
1647 int endpt
= upipe
->pipe
.endpoint
->edesc
->bEndpointAddress
;
1649 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d speed=%d "
1650 "flags=0x%x\n", addr
, UE_GET_ADDR(endpt
), len
,
1651 upipe
->pipe
.device
->speed
, flags
));
1652 maxp
= UGETW(upipe
->pipe
.endpoint
->edesc
->wMaxPacketSize
);
1654 kprintf("uhci_alloc_std_chain: maxp=0\n");
1655 return (USBD_INVAL
);
1657 ntd
= (len
+ maxp
- 1) / maxp
;
1658 if ((flags
& USBD_FORCE_SHORT_XFER
) && len
% maxp
== 0)
1660 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp
, ntd
));
1663 DPRINTFN(-1,("uhci_alloc_std_chain: ntd=0\n"));
1664 return (USBD_NORMAL_COMPLETION
);
1666 tog
= upipe
->nexttoggle
;
1669 upipe
->nexttoggle
= tog
^ 1;
1671 lastlink
= UHCI_PTR_T
;
1673 status
= UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE
);
1674 if (upipe
->pipe
.device
->speed
== USB_SPEED_LOW
)
1675 status
|= UHCI_TD_LS
;
1676 if (flags
& USBD_SHORT_XFER_OK
)
1677 status
|= UHCI_TD_SPD
;
1678 for (i
= ntd
; i
>= 0; i
--) {
1679 p
= uhci_alloc_std(sc
);
1681 uhci_free_std_chain(sc
, lastp
, NULL
);
1682 return (USBD_NOMEM
);
1684 p
->link
.std
= lastp
;
1685 p
->td
.td_link
= htole32(lastlink
| UHCI_PTR_VF
| UHCI_PTR_TD
);
1687 lastlink
= p
->physaddr
;
1688 p
->td
.td_status
= htole32(status
);
1692 if (l
== 0 && !(flags
& USBD_FORCE_SHORT_XFER
))
1698 htole32(rd
? UHCI_TD_IN (l
, endpt
, addr
, tog
) :
1699 UHCI_TD_OUT(l
, endpt
, addr
, tog
));
1700 p
->td
.td_buffer
= htole32(DMAADDR(dma
, i
* maxp
));
1704 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n",
1705 upipe
->nexttoggle
));
1706 return (USBD_NORMAL_COMPLETION
);
1710 uhci_device_clear_toggle(usbd_pipe_handle pipe
)
1712 struct uhci_pipe
*upipe
= (struct uhci_pipe
*)pipe
;
1713 upipe
->nexttoggle
= 0;
1717 uhci_noop(usbd_pipe_handle pipe
)
1722 uhci_device_bulk_transfer(usbd_xfer_handle xfer
)
1726 /* Insert last in queue. */
1727 err
= usb_insert_transfer(xfer
);
1732 * Pipe isn't running (otherwise err would be USBD_INPROG),
1733 * so start it first.
1735 return (uhci_device_bulk_start(STAILQ_FIRST(&xfer
->pipe
->queue
)));
1739 uhci_device_bulk_start(usbd_xfer_handle xfer
)
1741 struct uhci_pipe
*upipe
= (struct uhci_pipe
*)xfer
->pipe
;
1742 usbd_device_handle dev
= upipe
->pipe
.device
;
1743 uhci_softc_t
*sc
= (uhci_softc_t
*)dev
->bus
;
1744 uhci_intr_info_t
*ii
= &UXFER(xfer
)->iinfo
;
1745 uhci_soft_td_t
*data
, *dataend
;
1746 uhci_soft_qh_t
*sqh
;
1748 int len
, isread
, endpt
;
1750 DPRINTFN(3, ("uhci_device_bulk_start: xfer=%p len=%d flags=%d ii=%p\n",
1751 xfer
, xfer
->length
, xfer
->flags
, ii
));
1754 return (USBD_IOERROR
);
1757 if (xfer
->rqflags
& URQ_REQUEST
)
1758 panic("uhci_device_bulk_transfer: a request");
1762 endpt
= upipe
->pipe
.endpoint
->edesc
->bEndpointAddress
;
1763 isread
= UE_GET_DIR(endpt
) == UE_DIR_IN
;
1764 sqh
= upipe
->u
.bulk
.sqh
;
1766 upipe
->u
.bulk
.isread
= isread
;
1767 upipe
->u
.bulk
.length
= len
;
1769 err
= uhci_alloc_std_chain(upipe
, sc
, len
, isread
, xfer
->flags
,
1770 &xfer
->dmabuf
, &data
, &dataend
);
1773 dataend
->td
.td_status
|= htole32(UHCI_TD_IOC
);
1776 if (uhcidebug
> 8) {
1777 DPRINTF(("uhci_device_bulk_transfer: data(1)\n"));
1778 uhci_dump_tds(data
);
1782 /* Set up interrupt info. */
1784 ii
->stdstart
= data
;
1785 ii
->stdend
= dataend
;
1788 kprintf("uhci_device_bulk_transfer: not done, ii=%p\n", ii
);
1794 sqh
->qh
.qh_elink
= htole32(data
->physaddr
| UHCI_PTR_TD
);
1797 uhci_add_bulk(sc
, sqh
);
1798 uhci_add_intr_info(sc
, ii
);
1800 if (xfer
->timeout
&& !sc
->sc_bus
.use_polling
) {
1801 callout_reset(&xfer
->timeout_handle
, MS_TO_TICKS(xfer
->timeout
),
1804 xfer
->status
= USBD_IN_PROGRESS
;
1808 if (uhcidebug
> 10) {
1809 DPRINTF(("uhci_device_bulk_transfer: data(2)\n"));
1810 uhci_dump_tds(data
);
1814 if (sc
->sc_bus
.use_polling
)
1815 uhci_waitintr(sc
, xfer
);
1817 return (USBD_IN_PROGRESS
);
1820 /* Abort a device bulk request. */
1822 uhci_device_bulk_abort(usbd_xfer_handle xfer
)
1824 DPRINTF(("uhci_device_bulk_abort:\n"));
1825 uhci_abort_xfer(xfer
, USBD_CANCELLED
);
1829 * Abort a device request.
1830 * If this routine is called from a critical section. It guarantees that
1831 * the request will be removed from the hardware scheduling and that
1832 * the callback for it will be called with USBD_CANCELLED status.
1833 * It's impossible to guarantee that the requested transfer will not
1834 * have happened since the hardware runs concurrently.
1835 * If the transaction has already happened we rely on the ordinary
1836 * interrupt processing to process it.
1839 uhci_abort_xfer(usbd_xfer_handle xfer
, usbd_status status
)
1841 struct uhci_xfer
*uxfer
= UXFER(xfer
);
1842 uhci_intr_info_t
*ii
= &uxfer
->iinfo
;
1843 struct uhci_pipe
*upipe
= (struct uhci_pipe
*)xfer
->pipe
;
1844 uhci_softc_t
*sc
= (uhci_softc_t
*)upipe
->pipe
.device
->bus
;
1845 uhci_soft_td_t
*std
;
1847 DPRINTFN(1,("uhci_abort_xfer: xfer=%p, status=%d\n", xfer
, status
));
1850 /* If we're dying, just do the software part. */
1852 xfer
->status
= status
; /* make software ignore it */
1853 callout_stop(&xfer
->timeout_handle
);
1854 usb_rem_task(xfer
->pipe
->device
, &UXFER(xfer
)->abort_task
);
1855 usb_transfer_complete(xfer
);
1860 if (xfer
->device
->bus
->intr_context
/* || !curproc REMOVED DFly */)
1861 panic("uhci_abort_xfer: not in process context");
1864 * If an abort is already in progress then just wait for it to
1865 * complete and return.
1867 if (uxfer
->uhci_xfer_flags
& UHCI_XFER_ABORTING
) {
1868 DPRINTFN(2, ("uhci_abort_xfer: already aborting\n"));
1869 /* No need to wait if we're aborting from a timeout. */
1870 if (status
== USBD_TIMEOUT
)
1872 /* Override the status which might be USBD_TIMEOUT. */
1873 xfer
->status
= status
;
1874 DPRINTFN(2, ("uhci_abort_xfer: waiting for abort to finish\n"));
1875 uxfer
->uhci_xfer_flags
|= UHCI_XFER_ABORTWAIT
;
1876 while (uxfer
->uhci_xfer_flags
& UHCI_XFER_ABORTING
)
1877 tsleep(&uxfer
->uhci_xfer_flags
, 0, "uhciaw", 0);
1882 * Step 1: Make interrupt routine and hardware ignore xfer.
1885 uxfer
->uhci_xfer_flags
|= UHCI_XFER_ABORTING
;
1886 xfer
->status
= status
; /* make software ignore it */
1887 callout_stop(&xfer
->timeout_handle
);
1888 usb_rem_task(xfer
->pipe
->device
, &UXFER(xfer
)->abort_task
);
1889 DPRINTFN(1,("uhci_abort_xfer: stop ii=%p\n", ii
));
1890 for (std
= ii
->stdstart
; std
!= NULL
; std
= std
->link
.std
)
1891 std
->td
.td_status
&= htole32(~(UHCI_TD_ACTIVE
| UHCI_TD_IOC
));
1895 * Step 2: Wait until we know hardware has finished any possible
1896 * use of the xfer. Also make sure the soft interrupt routine
1899 usb_delay_ms(upipe
->pipe
.device
->bus
, 2); /* Hardware finishes in 1ms */
1901 #ifdef USB_USE_SOFTINTR
1902 sc
->sc_softwake
= 1;
1903 #endif /* USB_USE_SOFTINTR */
1904 usb_schedsoftintr(&sc
->sc_bus
);
1905 #ifdef USB_USE_SOFTINTR
1906 DPRINTFN(1,("uhci_abort_xfer: tsleep\n"));
1907 tsleep(&sc
->sc_softwake
, 0, "uhciab", 0);
1908 #endif /* USB_USE_SOFTINTR */
1911 * Step 3: Execute callback.
1913 DPRINTFN(1,("uhci_abort_xfer: callback\n"));
1917 /* Do the wakeup first to avoid touching the xfer after the callback. */
1918 uxfer
->uhci_xfer_flags
&= ~UHCI_XFER_ABORTING
;
1919 if (uxfer
->uhci_xfer_flags
& UHCI_XFER_ABORTWAIT
) {
1920 uxfer
->uhci_xfer_flags
&= ~UHCI_XFER_ABORTWAIT
;
1921 wakeup(&uxfer
->uhci_xfer_flags
);
1923 usb_transfer_complete(xfer
);
1927 /* Close a device bulk pipe. */
1929 uhci_device_bulk_close(usbd_pipe_handle pipe
)
1931 struct uhci_pipe
*upipe
= (struct uhci_pipe
*)pipe
;
1932 usbd_device_handle dev
= upipe
->pipe
.device
;
1933 uhci_softc_t
*sc
= (uhci_softc_t
*)dev
->bus
;
1935 uhci_free_sqh(sc
, upipe
->u
.bulk
.sqh
);
1936 pipe
->endpoint
->savedtoggle
= upipe
->nexttoggle
;
1940 uhci_device_ctrl_transfer(usbd_xfer_handle xfer
)
1944 /* Insert last in queue. */
1945 err
= usb_insert_transfer(xfer
);
1950 * Pipe isn't running (otherwise err would be USBD_INPROG),
1951 * so start it first.
1953 return (uhci_device_ctrl_start(STAILQ_FIRST(&xfer
->pipe
->queue
)));
1957 uhci_device_ctrl_start(usbd_xfer_handle xfer
)
1959 uhci_softc_t
*sc
= (uhci_softc_t
*)xfer
->pipe
->device
->bus
;
1963 return (USBD_IOERROR
);
1966 if (!(xfer
->rqflags
& URQ_REQUEST
))
1967 panic("uhci_device_ctrl_transfer: not a request");
1970 err
= uhci_device_request(xfer
);
1974 if (sc
->sc_bus
.use_polling
)
1975 uhci_waitintr(sc
, xfer
);
1976 return (USBD_IN_PROGRESS
);
1980 uhci_device_intr_transfer(usbd_xfer_handle xfer
)
1984 /* Insert last in queue. */
1985 err
= usb_insert_transfer(xfer
);
1990 * Pipe isn't running (otherwise err would be USBD_INPROG),
1991 * so start it first.
1993 return (uhci_device_intr_start(STAILQ_FIRST(&xfer
->pipe
->queue
)));
1997 uhci_device_intr_start(usbd_xfer_handle xfer
)
1999 struct uhci_pipe
*upipe
= (struct uhci_pipe
*)xfer
->pipe
;
2000 usbd_device_handle dev
= upipe
->pipe
.device
;
2001 uhci_softc_t
*sc
= (uhci_softc_t
*)dev
->bus
;
2002 uhci_intr_info_t
*ii
= &UXFER(xfer
)->iinfo
;
2003 uhci_soft_td_t
*data
, *dataend
;
2004 uhci_soft_qh_t
*sqh
;
2010 return (USBD_IOERROR
);
2012 DPRINTFN(3,("uhci_device_intr_transfer: xfer=%p len=%d flags=%d\n",
2013 xfer
, xfer
->length
, xfer
->flags
));
2016 if (xfer
->rqflags
& URQ_REQUEST
)
2017 panic("uhci_device_intr_transfer: a request");
2020 endpt
= upipe
->pipe
.endpoint
->edesc
->bEndpointAddress
;
2021 isread
= UE_GET_DIR(endpt
) == UE_DIR_IN
;
2022 sqh
= upipe
->u
.bulk
.sqh
;
2024 upipe
->u
.intr
.isread
= isread
;
2026 err
= uhci_alloc_std_chain(upipe
, sc
, xfer
->length
, isread
,
2027 xfer
->flags
, &xfer
->dmabuf
, &data
,
2031 dataend
->td
.td_status
|= htole32(UHCI_TD_IOC
);
2034 if (uhcidebug
> 10) {
2035 DPRINTF(("uhci_device_intr_transfer: data(1)\n"));
2036 uhci_dump_tds(data
);
2037 uhci_dump_qh(upipe
->u
.intr
.qhs
[0]);
2042 /* Set up interrupt info. */
2044 ii
->stdstart
= data
;
2045 ii
->stdend
= dataend
;
2048 kprintf("uhci_device_intr_transfer: not done, ii=%p\n", ii
);
2053 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n",
2054 upipe
->u
.intr
.qhs
[0]));
2055 for (i
= 0; i
< upipe
->u
.intr
.npoll
; i
++) {
2056 sqh
= upipe
->u
.intr
.qhs
[i
];
2058 sqh
->qh
.qh_elink
= htole32(data
->physaddr
| UHCI_PTR_TD
);
2060 uhci_add_intr_info(sc
, ii
);
2061 xfer
->status
= USBD_IN_PROGRESS
;
2065 if (uhcidebug
> 10) {
2066 DPRINTF(("uhci_device_intr_transfer: data(2)\n"));
2067 uhci_dump_tds(data
);
2068 uhci_dump_qh(upipe
->u
.intr
.qhs
[0]);
2072 return (USBD_IN_PROGRESS
);
2075 /* Abort a device control request. */
2077 uhci_device_ctrl_abort(usbd_xfer_handle xfer
)
2079 DPRINTF(("uhci_device_ctrl_abort:\n"));
2080 uhci_abort_xfer(xfer
, USBD_CANCELLED
);
2083 /* Close a device control pipe. */
2085 uhci_device_ctrl_close(usbd_pipe_handle pipe
)
2089 /* Abort a device interrupt request. */
2091 uhci_device_intr_abort(usbd_xfer_handle xfer
)
2093 DPRINTFN(1,("uhci_device_intr_abort: xfer=%p\n", xfer
));
2094 if (xfer
->pipe
->intrxfer
== xfer
) {
2095 DPRINTFN(1,("uhci_device_intr_abort: remove\n"));
2096 xfer
->pipe
->intrxfer
= NULL
;
2098 uhci_abort_xfer(xfer
, USBD_CANCELLED
);
2101 /* Close a device interrupt pipe. */
2103 uhci_device_intr_close(usbd_pipe_handle pipe
)
2105 struct uhci_pipe
*upipe
= (struct uhci_pipe
*)pipe
;
2106 uhci_softc_t
*sc
= (uhci_softc_t
*)pipe
->device
->bus
;
2109 /* Unlink descriptors from controller data structures. */
2110 npoll
= upipe
->u
.intr
.npoll
;
2112 for (i
= 0; i
< npoll
; i
++)
2113 uhci_remove_intr(sc
, upipe
->u
.intr
.qhs
[i
]);
2117 * We now have to wait for any activity on the physical
2118 * descriptors to stop.
2120 usb_delay_ms(&sc
->sc_bus
, 2);
2122 for(i
= 0; i
< npoll
; i
++)
2123 uhci_free_sqh(sc
, upipe
->u
.intr
.qhs
[i
]);
2124 kfree(upipe
->u
.intr
.qhs
, M_USBHC
);
2126 /* XXX free other resources */
2130 uhci_device_request(usbd_xfer_handle xfer
)
2132 struct uhci_pipe
*upipe
= (struct uhci_pipe
*)xfer
->pipe
;
2133 usb_device_request_t
*req
= &xfer
->request
;
2134 usbd_device_handle dev
= upipe
->pipe
.device
;
2135 uhci_softc_t
*sc
= (uhci_softc_t
*)dev
->bus
;
2136 int addr
= dev
->address
;
2137 int endpt
= upipe
->pipe
.endpoint
->edesc
->bEndpointAddress
;
2138 uhci_intr_info_t
*ii
= &UXFER(xfer
)->iinfo
;
2139 uhci_soft_td_t
*setup
, *data
, *stat
, *next
, *dataend
;
2140 uhci_soft_qh_t
*sqh
;
2146 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, "
2147 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n",
2148 req
->bmRequestType
, req
->bRequest
, UGETW(req
->wValue
),
2149 UGETW(req
->wIndex
), UGETW(req
->wLength
),
2152 ls
= dev
->speed
== USB_SPEED_LOW
? UHCI_TD_LS
: 0;
2153 isread
= req
->bmRequestType
& UT_READ
;
2154 len
= UGETW(req
->wLength
);
2156 setup
= upipe
->u
.ctl
.setup
;
2157 stat
= upipe
->u
.ctl
.stat
;
2158 sqh
= upipe
->u
.ctl
.sqh
;
2160 /* Set up data transaction */
2162 upipe
->nexttoggle
= 1;
2163 err
= uhci_alloc_std_chain(upipe
, sc
, len
, isread
, xfer
->flags
,
2164 &xfer
->dmabuf
, &data
, &dataend
);
2168 dataend
->link
.std
= stat
;
2169 dataend
->td
.td_link
= htole32(stat
->physaddr
| UHCI_PTR_VF
| UHCI_PTR_TD
);
2173 upipe
->u
.ctl
.length
= len
;
2175 memcpy(KERNADDR(&upipe
->u
.ctl
.reqdma
, 0), req
, sizeof *req
);
2177 setup
->link
.std
= next
;
2178 setup
->td
.td_link
= htole32(next
->physaddr
| UHCI_PTR_VF
| UHCI_PTR_TD
);
2179 setup
->td
.td_status
= htole32(UHCI_TD_SET_ERRCNT(3) | ls
|
2181 setup
->td
.td_token
= htole32(UHCI_TD_SETUP(sizeof *req
, endpt
, addr
));
2182 setup
->td
.td_buffer
= htole32(DMAADDR(&upipe
->u
.ctl
.reqdma
, 0));
2183 stat
->link
.std
= NULL
;
2184 stat
->td
.td_link
= htole32(UHCI_PTR_T
);
2185 stat
->td
.td_status
= htole32(UHCI_TD_SET_ERRCNT(3) | ls
|
2186 UHCI_TD_ACTIVE
| UHCI_TD_IOC
);
2189 htole32(isread
? UHCI_TD_OUT(0, endpt
, addr
, 1) :
2190 UHCI_TD_IN (0, endpt
, addr
, 1));
2191 stat
->td
.td_buffer
= htole32(0);
2194 if (uhcidebug
> 10) {
2195 DPRINTF(("uhci_device_request: before transfer\n"));
2196 uhci_dump_tds(setup
);
2200 /* Set up interrupt info. */
2202 ii
->stdstart
= setup
;
2206 kprintf("uhci_device_request: not done, ii=%p\n", ii
);
2212 sqh
->qh
.qh_elink
= htole32(setup
->physaddr
| UHCI_PTR_TD
);
2215 if (dev
->speed
== USB_SPEED_LOW
)
2216 uhci_add_ls_ctrl(sc
, sqh
);
2218 uhci_add_hs_ctrl(sc
, sqh
);
2219 uhci_add_intr_info(sc
, ii
);
2221 if (uhcidebug
> 12) {
2222 uhci_soft_td_t
*std
;
2223 uhci_soft_qh_t
*xqh
;
2224 uhci_soft_qh_t
*sxqh
;
2226 uhci_physaddr_t link
;
2227 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n"));
2228 for (std
= sc
->sc_vframes
[0].htd
, link
= 0;
2229 (link
& UHCI_PTR_QH
) == 0;
2230 std
= std
->link
.std
) {
2231 link
= le32toh(std
->td
.td_link
);
2234 sxqh
= (uhci_soft_qh_t
*)std
;
2238 xqh
= (maxqh
++ == 5 || xqh
->hlink
== sxqh
||
2239 xqh
->hlink
== xqh
? NULL
: xqh
->hlink
)) {
2242 DPRINTF(("Enqueued QH:\n"));
2244 uhci_dump_tds(sqh
->elink
);
2247 if (xfer
->timeout
&& !sc
->sc_bus
.use_polling
) {
2248 callout_reset(&xfer
->timeout_handle
, MS_TO_TICKS(xfer
->timeout
),
2251 xfer
->status
= USBD_IN_PROGRESS
;
2254 return (USBD_NORMAL_COMPLETION
);
2258 uhci_device_isoc_transfer(usbd_xfer_handle xfer
)
2262 DPRINTFN(5,("uhci_device_isoc_transfer: xfer=%p\n", xfer
));
2264 /* Put it on our queue, */
2265 err
= usb_insert_transfer(xfer
);
2267 /* bail out on error, */
2268 if (err
&& err
!= USBD_IN_PROGRESS
)
2271 /* XXX should check inuse here */
2273 /* insert into schedule, */
2274 uhci_device_isoc_enter(xfer
);
2276 /* and start if the pipe wasn't running */
2278 uhci_device_isoc_start(STAILQ_FIRST(&xfer
->pipe
->queue
));
2284 uhci_device_isoc_enter(usbd_xfer_handle xfer
)
2286 struct uhci_pipe
*upipe
= (struct uhci_pipe
*)xfer
->pipe
;
2287 usbd_device_handle dev
= upipe
->pipe
.device
;
2288 uhci_softc_t
*sc
= (uhci_softc_t
*)dev
->bus
;
2289 struct iso
*iso
= &upipe
->u
.iso
;
2290 uhci_soft_td_t
*std
;
2291 u_int32_t buf
, len
, status
;
2292 int i
, next
, nframes
;
2294 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p "
2296 iso
->inuse
, iso
->next
, xfer
, xfer
->nframes
));
2301 if (xfer
->status
== USBD_IN_PROGRESS
) {
2302 /* This request has already been entered into the frame list */
2303 kprintf("uhci_device_isoc_enter: xfer=%p in frame list\n", xfer
);
2308 if (iso
->inuse
>= UHCI_VFRAMELIST_COUNT
)
2309 kprintf("uhci_device_isoc_enter: overflow!\n");
2314 /* Not in use yet, schedule it a few frames ahead. */
2315 next
= (UREAD2(sc
, UHCI_FRNUM
) + 3) % UHCI_VFRAMELIST_COUNT
;
2316 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next
));
2319 xfer
->status
= USBD_IN_PROGRESS
;
2320 UXFER(xfer
)->curframe
= next
;
2322 buf
= DMAADDR(&xfer
->dmabuf
, 0);
2323 status
= UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) |
2326 nframes
= xfer
->nframes
;
2328 for (i
= 0; i
< nframes
; i
++) {
2329 std
= iso
->stds
[next
];
2330 if (++next
>= UHCI_VFRAMELIST_COUNT
)
2332 len
= xfer
->frlengths
[i
];
2333 std
->td
.td_buffer
= htole32(buf
);
2334 if (i
== nframes
- 1)
2335 status
|= UHCI_TD_IOC
;
2336 std
->td
.td_status
= htole32(status
);
2337 std
->td
.td_token
&= htole32(~UHCI_TD_MAXLEN_MASK
);
2338 std
->td
.td_token
|= htole32(UHCI_TD_SET_MAXLEN(len
));
2340 if (uhcidebug
> 5) {
2341 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i
));
2348 iso
->inuse
+= xfer
->nframes
;
2354 uhci_device_isoc_start(usbd_xfer_handle xfer
)
2356 struct uhci_pipe
*upipe
= (struct uhci_pipe
*)xfer
->pipe
;
2357 uhci_softc_t
*sc
= (uhci_softc_t
*)upipe
->pipe
.device
->bus
;
2358 uhci_intr_info_t
*ii
= &UXFER(xfer
)->iinfo
;
2359 uhci_soft_td_t
*end
;
2362 DPRINTFN(5,("uhci_device_isoc_start: xfer=%p\n", xfer
));
2365 return (USBD_IOERROR
);
2368 if (xfer
->status
!= USBD_IN_PROGRESS
)
2369 kprintf("uhci_device_isoc_start: not in progress %p\n", xfer
);
2372 /* Find the last TD */
2373 i
= UXFER(xfer
)->curframe
+ xfer
->nframes
;
2374 if (i
>= UHCI_VFRAMELIST_COUNT
)
2375 i
-= UHCI_VFRAMELIST_COUNT
;
2376 end
= upipe
->u
.iso
.stds
[i
];
2380 kprintf("uhci_device_isoc_start: end == NULL\n");
2381 return (USBD_INVAL
);
2387 /* Set up interrupt info. */
2393 kprintf("uhci_device_isoc_start: not done, ii=%p\n", ii
);
2396 uhci_add_intr_info(sc
, ii
);
2400 return (USBD_IN_PROGRESS
);
2404 uhci_device_isoc_abort(usbd_xfer_handle xfer
)
2406 struct uhci_pipe
*upipe
= (struct uhci_pipe
*)xfer
->pipe
;
2407 uhci_soft_td_t
**stds
= upipe
->u
.iso
.stds
;
2408 uhci_soft_td_t
*std
;
2409 int i
, n
, nframes
, maxlen
, len
;
2413 /* Transfer is already done. */
2414 if (xfer
->status
!= USBD_NOT_STARTED
&&
2415 xfer
->status
!= USBD_IN_PROGRESS
) {
2420 /* Give xfer the requested abort code. */
2421 xfer
->status
= USBD_CANCELLED
;
2423 /* make hardware ignore it, */
2424 nframes
= xfer
->nframes
;
2425 n
= UXFER(xfer
)->curframe
;
2427 for (i
= 0; i
< nframes
; i
++) {
2429 std
->td
.td_status
&= htole32(~(UHCI_TD_ACTIVE
| UHCI_TD_IOC
));
2430 len
= UHCI_TD_GET_MAXLEN(le32toh(std
->td
.td_token
));
2433 if (++n
>= UHCI_VFRAMELIST_COUNT
)
2437 /* and wait until we are sure the hardware has finished. */
2441 UXFER(xfer
)->iinfo
.isdone
= 1;
2443 /* Run callback and remove from interrupt list. */
2444 usb_transfer_complete(xfer
);
2450 uhci_device_isoc_close(usbd_pipe_handle pipe
)
2452 struct uhci_pipe
*upipe
= (struct uhci_pipe
*)pipe
;
2453 usbd_device_handle dev
= upipe
->pipe
.device
;
2454 uhci_softc_t
*sc
= (uhci_softc_t
*)dev
->bus
;
2455 uhci_soft_td_t
*std
, *vstd
;
2460 * Make sure all TDs are marked as inactive.
2461 * Wait for completion.
2465 iso
= &upipe
->u
.iso
;
2467 for (i
= 0; i
< UHCI_VFRAMELIST_COUNT
; i
++)
2468 iso
->stds
[i
]->td
.td_status
&= htole32(~UHCI_TD_ACTIVE
);
2469 usb_delay_ms(&sc
->sc_bus
, 2); /* wait for completion */
2472 for (i
= 0; i
< UHCI_VFRAMELIST_COUNT
; i
++) {
2474 for (vstd
= sc
->sc_vframes
[i
].htd
;
2475 vstd
!= NULL
&& vstd
->link
.std
!= std
;
2476 vstd
= vstd
->link
.std
)
2480 kprintf("uhci_device_isoc_close: %p not found\n", std
);
2484 vstd
->link
= std
->link
;
2485 vstd
->td
.td_link
= std
->td
.td_link
;
2486 uhci_free_std(sc
, std
);
2490 kfree(iso
->stds
, M_USBHC
);
2494 uhci_setup_isoc(usbd_pipe_handle pipe
)
2496 struct uhci_pipe
*upipe
= (struct uhci_pipe
*)pipe
;
2497 usbd_device_handle dev
= upipe
->pipe
.device
;
2498 uhci_softc_t
*sc
= (uhci_softc_t
*)dev
->bus
;
2499 int addr
= upipe
->pipe
.device
->address
;
2500 int endpt
= upipe
->pipe
.endpoint
->edesc
->bEndpointAddress
;
2501 int rd
= UE_GET_DIR(endpt
) == UE_DIR_IN
;
2502 uhci_soft_td_t
*std
, *vstd
;
2507 iso
= &upipe
->u
.iso
;
2508 iso
->stds
= kmalloc(UHCI_VFRAMELIST_COUNT
* sizeof (uhci_soft_td_t
*),
2509 M_USBHC
, M_INTWAIT
);
2511 token
= rd
? UHCI_TD_IN (0, endpt
, addr
, 0) :
2512 UHCI_TD_OUT(0, endpt
, addr
, 0);
2514 /* Allocate the TDs and mark as inactive; */
2515 for (i
= 0; i
< UHCI_VFRAMELIST_COUNT
; i
++) {
2516 std
= uhci_alloc_std(sc
);
2519 std
->td
.td_status
= htole32(UHCI_TD_IOS
); /* iso, inactive */
2520 std
->td
.td_token
= htole32(token
);
2524 /* Insert TDs into schedule. */
2526 for (i
= 0; i
< UHCI_VFRAMELIST_COUNT
; i
++) {
2528 vstd
= sc
->sc_vframes
[i
].htd
;
2529 std
->link
= vstd
->link
;
2530 std
->td
.td_link
= vstd
->td
.td_link
;
2531 vstd
->link
.std
= std
;
2532 vstd
->td
.td_link
= htole32(std
->physaddr
| UHCI_PTR_TD
);
2539 return (USBD_NORMAL_COMPLETION
);
2543 uhci_free_std(sc
, iso
->stds
[i
]);
2544 kfree(iso
->stds
, M_USBHC
);
2545 return (USBD_NOMEM
);
2549 uhci_device_isoc_done(usbd_xfer_handle xfer
)
2551 uhci_intr_info_t
*ii
= &UXFER(xfer
)->iinfo
;
2553 DPRINTFN(4, ("uhci_isoc_done: length=%d\n", xfer
->actlen
));
2555 if (ii
->xfer
!= xfer
)
2556 /* Not on interrupt list, ignore it. */
2559 if (!uhci_active_intr_info(ii
))
2563 if (xfer
->busy_free
!= XFER_BUSY
) {
2564 kprintf("uhci_device_isoc_done: xfer=%p not busy 0x%08x\n",
2565 xfer
, xfer
->busy_free
);
2569 if (ii
->stdend
== NULL
) {
2570 kprintf("uhci_device_isoc_done: xfer=%p stdend==NULL\n", xfer
);
2578 /* Turn off the interrupt since it is active even if the TD is not. */
2579 ii
->stdend
->td
.td_status
&= htole32(~UHCI_TD_IOC
);
2581 uhci_del_intr_info(ii
); /* remove from active list */
2584 if (ii
->stdend
== NULL
) {
2585 kprintf("uhci_device_isoc_done: xfer=%p stdend==NULL\n", xfer
);
2595 uhci_device_intr_done(usbd_xfer_handle xfer
)
2597 uhci_intr_info_t
*ii
= &UXFER(xfer
)->iinfo
;
2598 uhci_softc_t
*sc
= ii
->sc
;
2599 struct uhci_pipe
*upipe
= (struct uhci_pipe
*)xfer
->pipe
;
2600 uhci_soft_qh_t
*sqh
;
2603 DPRINTFN(5, ("uhci_device_intr_done: length=%d\n", xfer
->actlen
));
2605 npoll
= upipe
->u
.intr
.npoll
;
2606 for(i
= 0; i
< npoll
; i
++) {
2607 sqh
= upipe
->u
.intr
.qhs
[i
];
2609 sqh
->qh
.qh_elink
= htole32(UHCI_PTR_T
);
2611 uhci_free_std_chain(sc
, ii
->stdstart
, NULL
);
2614 if (xfer
->pipe
->repeat
) {
2615 uhci_soft_td_t
*data
, *dataend
;
2617 DPRINTFN(5,("uhci_device_intr_done: requeueing\n"));
2619 /* This alloc cannot fail since we freed the chain above. */
2620 uhci_alloc_std_chain(upipe
, sc
, xfer
->length
,
2621 upipe
->u
.intr
.isread
, xfer
->flags
,
2622 &xfer
->dmabuf
, &data
, &dataend
);
2623 dataend
->td
.td_status
|= htole32(UHCI_TD_IOC
);
2626 if (uhcidebug
> 10) {
2627 DPRINTF(("uhci_device_intr_done: data(1)\n"));
2628 uhci_dump_tds(data
);
2629 uhci_dump_qh(upipe
->u
.intr
.qhs
[0]);
2633 ii
->stdstart
= data
;
2634 ii
->stdend
= dataend
;
2637 kprintf("uhci_device_intr_done: not done, ii=%p\n", ii
);
2641 for (i
= 0; i
< npoll
; i
++) {
2642 sqh
= upipe
->u
.intr
.qhs
[i
];
2644 sqh
->qh
.qh_elink
= htole32(data
->physaddr
| UHCI_PTR_TD
);
2646 xfer
->status
= USBD_IN_PROGRESS
;
2647 /* The ii is already on the examined list, just leave it. */
2649 DPRINTFN(5,("uhci_device_intr_done: removing\n"));
2650 if (uhci_active_intr_info(ii
))
2651 uhci_del_intr_info(ii
);
2655 /* Deallocate request data structures */
2657 uhci_device_ctrl_done(usbd_xfer_handle xfer
)
2659 uhci_intr_info_t
*ii
= &UXFER(xfer
)->iinfo
;
2660 uhci_softc_t
*sc
= ii
->sc
;
2661 struct uhci_pipe
*upipe
= (struct uhci_pipe
*)xfer
->pipe
;
2664 if (!(xfer
->rqflags
& URQ_REQUEST
))
2665 panic("uhci_device_ctrl_done: not a request");
2668 if (!uhci_active_intr_info(ii
))
2671 uhci_del_intr_info(ii
); /* remove from active list */
2673 if (upipe
->pipe
.device
->speed
== USB_SPEED_LOW
)
2674 uhci_remove_ls_ctrl(sc
, upipe
->u
.ctl
.sqh
);
2676 uhci_remove_hs_ctrl(sc
, upipe
->u
.ctl
.sqh
);
2678 if (upipe
->u
.ctl
.length
!= 0)
2679 uhci_free_std_chain(sc
, ii
->stdstart
->link
.std
, ii
->stdend
);
2681 DPRINTFN(5, ("uhci_device_ctrl_done: length=%d\n", xfer
->actlen
));
2684 /* Deallocate request data structures */
2686 uhci_device_bulk_done(usbd_xfer_handle xfer
)
2688 uhci_intr_info_t
*ii
= &UXFER(xfer
)->iinfo
;
2689 uhci_softc_t
*sc
= ii
->sc
;
2690 struct uhci_pipe
*upipe
= (struct uhci_pipe
*)xfer
->pipe
;
2692 DPRINTFN(5,("uhci_device_bulk_done: xfer=%p ii=%p sc=%p upipe=%p\n",
2693 xfer
, ii
, sc
, upipe
));
2695 if (!uhci_active_intr_info(ii
))
2698 uhci_del_intr_info(ii
); /* remove from active list */
2700 uhci_remove_bulk(sc
, upipe
->u
.bulk
.sqh
);
2702 uhci_free_std_chain(sc
, ii
->stdstart
, NULL
);
2704 DPRINTFN(5, ("uhci_device_bulk_done: length=%d\n", xfer
->actlen
));
2707 /* Add interrupt QH, called with vflock. */
2709 uhci_add_intr(uhci_softc_t
*sc
, uhci_soft_qh_t
*sqh
)
2711 struct uhci_vframe
*vf
= &sc
->sc_vframes
[sqh
->pos
];
2712 uhci_soft_qh_t
*eqh
;
2714 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", sqh
->pos
, sqh
));
2717 sqh
->hlink
= eqh
->hlink
;
2718 sqh
->qh
.qh_hlink
= eqh
->qh
.qh_hlink
;
2720 eqh
->qh
.qh_hlink
= htole32(sqh
->physaddr
| UHCI_PTR_QH
);
2725 /* Remove interrupt QH. */
2727 uhci_remove_intr(uhci_softc_t
*sc
, uhci_soft_qh_t
*sqh
)
2729 struct uhci_vframe
*vf
= &sc
->sc_vframes
[sqh
->pos
];
2730 uhci_soft_qh_t
*pqh
;
2732 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", sqh
->pos
, sqh
));
2734 /* See comment in uhci_remove_ctrl() */
2735 if (!(sqh
->qh
.qh_elink
& htole32(UHCI_PTR_T
))) {
2736 sqh
->qh
.qh_elink
= htole32(UHCI_PTR_T
);
2737 delay(UHCI_QH_REMOVE_DELAY
);
2740 pqh
= uhci_find_prev_qh(vf
->hqh
, sqh
);
2741 pqh
->hlink
= sqh
->hlink
;
2742 pqh
->qh
.qh_hlink
= sqh
->qh
.qh_hlink
;
2743 delay(UHCI_QH_REMOVE_DELAY
);
2750 uhci_device_setintr(uhci_softc_t
*sc
, struct uhci_pipe
*upipe
, int ival
)
2752 uhci_soft_qh_t
*sqh
;
2754 u_int bestbw
, bw
, bestoffs
, offs
;
2756 DPRINTFN(2, ("uhci_device_setintr: pipe=%p\n", upipe
));
2758 kprintf("uhci_setintr: 0 interval\n");
2759 return (USBD_INVAL
);
2762 if (ival
> UHCI_VFRAMELIST_COUNT
)
2763 ival
= UHCI_VFRAMELIST_COUNT
;
2764 npoll
= (UHCI_VFRAMELIST_COUNT
+ ival
- 1) / ival
;
2765 DPRINTFN(2, ("uhci_device_setintr: ival=%d npoll=%d\n", ival
, npoll
));
2767 upipe
->u
.intr
.npoll
= npoll
;
2769 kmalloc(npoll
* sizeof(uhci_soft_qh_t
*), M_USBHC
, M_INTWAIT
);
2772 * Figure out which offset in the schedule that has most
2773 * bandwidth left over.
2775 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1))
2776 for (bestoffs
= offs
= 0, bestbw
= ~0; offs
< ival
; offs
++) {
2777 for (bw
= i
= 0; i
< npoll
; i
++)
2778 bw
+= sc
->sc_vframes
[MOD(i
* ival
+ offs
)].bandwidth
;
2784 DPRINTFN(1, ("uhci_device_setintr: bw=%d offs=%d\n", bestbw
, bestoffs
));
2786 for(i
= 0; i
< npoll
; i
++) {
2787 upipe
->u
.intr
.qhs
[i
] = sqh
= uhci_alloc_sqh(sc
);
2789 sqh
->qh
.qh_elink
= htole32(UHCI_PTR_T
);
2790 sqh
->pos
= MOD(i
* ival
+ bestoffs
);
2795 /* Enter QHs into the controller data structures. */
2796 for(i
= 0; i
< npoll
; i
++)
2797 uhci_add_intr(sc
, upipe
->u
.intr
.qhs
[i
]);
2800 DPRINTFN(5, ("uhci_device_setintr: returns %p\n", upipe
));
2801 return (USBD_NORMAL_COMPLETION
);
2804 /* Open a new pipe. */
2806 uhci_open(usbd_pipe_handle pipe
)
2808 uhci_softc_t
*sc
= (uhci_softc_t
*)pipe
->device
->bus
;
2809 struct uhci_pipe
*upipe
= (struct uhci_pipe
*)pipe
;
2810 usb_endpoint_descriptor_t
*ed
= pipe
->endpoint
->edesc
;
2814 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n",
2815 pipe
, pipe
->device
->address
,
2816 ed
->bEndpointAddress
, sc
->sc_addr
));
2818 upipe
->aborting
= 0;
2819 upipe
->nexttoggle
= pipe
->endpoint
->savedtoggle
;
2821 if (pipe
->device
->address
== sc
->sc_addr
) {
2822 switch (ed
->bEndpointAddress
) {
2823 case USB_CONTROL_ENDPOINT
:
2824 pipe
->methods
= &uhci_root_ctrl_methods
;
2826 case UE_DIR_IN
| UHCI_INTR_ENDPT
:
2827 pipe
->methods
= &uhci_root_intr_methods
;
2830 return (USBD_INVAL
);
2833 switch (ed
->bmAttributes
& UE_XFERTYPE
) {
2835 pipe
->methods
= &uhci_device_ctrl_methods
;
2836 upipe
->u
.ctl
.sqh
= uhci_alloc_sqh(sc
);
2837 if (upipe
->u
.ctl
.sqh
== NULL
)
2839 upipe
->u
.ctl
.setup
= uhci_alloc_std(sc
);
2840 if (upipe
->u
.ctl
.setup
== NULL
) {
2841 uhci_free_sqh(sc
, upipe
->u
.ctl
.sqh
);
2844 upipe
->u
.ctl
.stat
= uhci_alloc_std(sc
);
2845 if (upipe
->u
.ctl
.stat
== NULL
) {
2846 uhci_free_sqh(sc
, upipe
->u
.ctl
.sqh
);
2847 uhci_free_std(sc
, upipe
->u
.ctl
.setup
);
2850 err
= usb_allocmem(&sc
->sc_bus
,
2851 sizeof(usb_device_request_t
),
2852 0, &upipe
->u
.ctl
.reqdma
);
2854 uhci_free_sqh(sc
, upipe
->u
.ctl
.sqh
);
2855 uhci_free_std(sc
, upipe
->u
.ctl
.setup
);
2856 uhci_free_std(sc
, upipe
->u
.ctl
.stat
);
2861 pipe
->methods
= &uhci_device_intr_methods
;
2862 ival
= pipe
->interval
;
2863 if (ival
== USBD_DEFAULT_INTERVAL
)
2864 ival
= ed
->bInterval
;
2865 return (uhci_device_setintr(sc
, upipe
, ival
));
2866 case UE_ISOCHRONOUS
:
2867 pipe
->methods
= &uhci_device_isoc_methods
;
2868 return (uhci_setup_isoc(pipe
));
2870 pipe
->methods
= &uhci_device_bulk_methods
;
2871 upipe
->u
.bulk
.sqh
= uhci_alloc_sqh(sc
);
2872 if (upipe
->u
.bulk
.sqh
== NULL
)
2877 return (USBD_NORMAL_COMPLETION
);
2880 return (USBD_NOMEM
);
2884 * Data structures and routines to emulate the root hub.
2886 usb_device_descriptor_t uhci_devd
= {
2887 USB_DEVICE_DESCRIPTOR_SIZE
,
2888 UDESC_DEVICE
, /* type */
2889 {0x00, 0x01}, /* USB version */
2890 UDCLASS_HUB
, /* class */
2891 UDSUBCLASS_HUB
, /* subclass */
2892 UDPROTO_FSHUB
, /* protocol */
2893 64, /* max packet */
2894 {0},{0},{0x00,0x01}, /* device id */
2895 1,2,0, /* string indicies */
2896 1 /* # of configurations */
2899 usb_config_descriptor_t uhci_confd
= {
2900 USB_CONFIG_DESCRIPTOR_SIZE
,
2902 {USB_CONFIG_DESCRIPTOR_SIZE
+
2903 USB_INTERFACE_DESCRIPTOR_SIZE
+
2904 USB_ENDPOINT_DESCRIPTOR_SIZE
},
2912 usb_interface_descriptor_t uhci_ifcd
= {
2913 USB_INTERFACE_DESCRIPTOR_SIZE
,
2924 usb_endpoint_descriptor_t uhci_endpd
= {
2925 USB_ENDPOINT_DESCRIPTOR_SIZE
,
2927 UE_DIR_IN
| UHCI_INTR_ENDPT
,
2933 usb_hub_descriptor_t uhci_hubd_piix
= {
2934 USB_HUB_DESCRIPTOR_SIZE
,
2937 { UHD_PWR_NO_SWITCH
| UHD_OC_INDIVIDUAL
, 0 },
2938 50, /* power on to power good */
2940 { 0x00 }, /* both ports are removable */
2944 uhci_str(usb_string_descriptor_t
*p
, int l
, char *s
)
2950 p
->bLength
= 2 * strlen(s
) + 2;
2953 p
->bDescriptorType
= UDESC_STRING
;
2955 for (i
= 0; s
[i
] && l
> 1; i
++, l
-= 2)
2956 USETW2(p
->bString
[i
], 0, s
[i
]);
2961 * The USB hub protocol requires that SET_FEATURE(PORT_RESET) also
2962 * enables the port, and also states that SET_FEATURE(PORT_ENABLE)
2963 * should not be used by the USB subsystem. As we cannot issue a
2964 * SET_FEATURE(PORT_ENABLE) externally, we must ensure that the port
2965 * will be enabled as part of the reset.
2967 * On the VT83C572, the port cannot be successfully enabled until the
2968 * outstanding "port enable change" and "connection status change"
2969 * events have been reset.
2972 uhci_portreset(uhci_softc_t
*sc
, int index
)
2977 port
= UHCI_PORTSC1
;
2978 else if (index
== 2)
2979 port
= UHCI_PORTSC2
;
2981 return (USBD_IOERROR
);
2983 x
= URWMASK(UREAD2(sc
, port
));
2984 UWRITE2(sc
, port
, x
| UHCI_PORTSC_PR
);
2986 usb_delay_ms(&sc
->sc_bus
, USB_PORT_ROOT_RESET_DELAY
);
2988 DPRINTFN(3,("uhci port %d reset, status0 = 0x%04x\n",
2989 index
, UREAD2(sc
, port
)));
2991 x
= URWMASK(UREAD2(sc
, port
));
2992 UWRITE2(sc
, port
, x
& ~UHCI_PORTSC_PR
);
2996 DPRINTFN(3,("uhci port %d reset, status1 = 0x%04x\n",
2997 index
, UREAD2(sc
, port
)));
2999 x
= URWMASK(UREAD2(sc
, port
));
3000 UWRITE2(sc
, port
, x
| UHCI_PORTSC_PE
);
3002 for (lim
= 10; --lim
> 0;) {
3003 usb_delay_ms(&sc
->sc_bus
, USB_PORT_RESET_DELAY
);
3005 x
= UREAD2(sc
, port
);
3007 DPRINTFN(3,("uhci port %d iteration %u, status = 0x%04x\n",
3010 if (!(x
& UHCI_PORTSC_CCS
)) {
3012 * No device is connected (or was disconnected
3013 * during reset). Consider the port reset.
3014 * The delay must be long enough to ensure on
3015 * the initial iteration that the device
3016 * connection will have been registered. 50ms
3017 * appears to be sufficient, but 20ms is not.
3019 DPRINTFN(3,("uhci port %d loop %u, device detached\n",
3024 if (x
& (UHCI_PORTSC_POEDC
| UHCI_PORTSC_CSC
)) {
3026 * Port enabled changed and/or connection
3027 * status changed were set. Reset either or
3028 * both raised flags (by writing a 1 to that
3029 * bit), and wait again for state to settle.
3031 UWRITE2(sc
, port
, URWMASK(x
) |
3032 (x
& (UHCI_PORTSC_POEDC
| UHCI_PORTSC_CSC
)));
3036 if (x
& UHCI_PORTSC_PE
)
3037 /* Port is enabled */
3040 UWRITE2(sc
, port
, URWMASK(x
) | UHCI_PORTSC_PE
);
3043 DPRINTFN(3,("uhci port %d reset, status2 = 0x%04x\n",
3044 index
, UREAD2(sc
, port
)));
3047 DPRINTFN(1,("uhci port %d reset timed out\n", index
));
3048 return (USBD_TIMEOUT
);
3052 return (USBD_NORMAL_COMPLETION
);
3056 * Simulate a hardware hub by handling all the necessary requests.
3059 uhci_root_ctrl_transfer(usbd_xfer_handle xfer
)
3063 /* Insert last in queue. */
3064 err
= usb_insert_transfer(xfer
);
3069 * Pipe isn't running (otherwise err would be USBD_INPROG),
3070 * so start it first.
3072 return (uhci_root_ctrl_start(STAILQ_FIRST(&xfer
->pipe
->queue
)));
3076 uhci_root_ctrl_start(usbd_xfer_handle xfer
)
3078 uhci_softc_t
*sc
= (uhci_softc_t
*)xfer
->pipe
->device
->bus
;
3079 usb_device_request_t
*req
;
3082 int len
, value
, index
, status
, change
, l
, totlen
= 0;
3083 usb_port_status_t ps
;
3087 return (USBD_IOERROR
);
3090 if (!(xfer
->rqflags
& URQ_REQUEST
))
3091 panic("uhci_root_ctrl_transfer: not a request");
3093 req
= &xfer
->request
;
3095 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n",
3096 req
->bmRequestType
, req
->bRequest
));
3098 len
= UGETW(req
->wLength
);
3099 value
= UGETW(req
->wValue
);
3100 index
= UGETW(req
->wIndex
);
3103 buf
= KERNADDR(&xfer
->dmabuf
, 0);
3105 #define C(x,y) ((x) | ((y) << 8))
3106 switch(C(req
->bRequest
, req
->bmRequestType
)) {
3107 case C(UR_CLEAR_FEATURE
, UT_WRITE_DEVICE
):
3108 case C(UR_CLEAR_FEATURE
, UT_WRITE_INTERFACE
):
3109 case C(UR_CLEAR_FEATURE
, UT_WRITE_ENDPOINT
):
3111 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops
3112 * for the integrated root hub.
3115 case C(UR_GET_CONFIG
, UT_READ_DEVICE
):
3117 *(u_int8_t
*)buf
= sc
->sc_conf
;
3121 case C(UR_GET_DESCRIPTOR
, UT_READ_DEVICE
):
3122 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value
));
3123 switch(value
>> 8) {
3125 if ((value
& 0xff) != 0) {
3129 totlen
= l
= min(len
, USB_DEVICE_DESCRIPTOR_SIZE
);
3130 USETW(uhci_devd
.idVendor
, sc
->sc_id_vendor
);
3131 memcpy(buf
, &uhci_devd
, l
);
3134 if ((value
& 0xff) != 0) {
3138 totlen
= l
= min(len
, USB_CONFIG_DESCRIPTOR_SIZE
);
3139 memcpy(buf
, &uhci_confd
, l
);
3140 buf
= (char *)buf
+ l
;
3142 l
= min(len
, USB_INTERFACE_DESCRIPTOR_SIZE
);
3144 memcpy(buf
, &uhci_ifcd
, l
);
3145 buf
= (char *)buf
+ l
;
3147 l
= min(len
, USB_ENDPOINT_DESCRIPTOR_SIZE
);
3149 memcpy(buf
, &uhci_endpd
, l
);
3154 *(u_int8_t
*)buf
= 0;
3156 switch (value
& 0xff) {
3157 case 1: /* Vendor */
3158 totlen
= uhci_str(buf
, len
, sc
->sc_vendor
);
3160 case 2: /* Product */
3161 totlen
= uhci_str(buf
, len
, "UHCI root hub");
3170 case C(UR_GET_INTERFACE
, UT_READ_INTERFACE
):
3172 *(u_int8_t
*)buf
= 0;
3176 case C(UR_GET_STATUS
, UT_READ_DEVICE
):
3178 USETW(((usb_status_t
*)buf
)->wStatus
,UDS_SELF_POWERED
);
3182 case C(UR_GET_STATUS
, UT_READ_INTERFACE
):
3183 case C(UR_GET_STATUS
, UT_READ_ENDPOINT
):
3185 USETW(((usb_status_t
*)buf
)->wStatus
, 0);
3189 case C(UR_SET_ADDRESS
, UT_WRITE_DEVICE
):
3190 if (value
>= USB_MAX_DEVICES
) {
3194 sc
->sc_addr
= value
;
3196 case C(UR_SET_CONFIG
, UT_WRITE_DEVICE
):
3197 if (value
!= 0 && value
!= 1) {
3201 sc
->sc_conf
= value
;
3203 case C(UR_SET_DESCRIPTOR
, UT_WRITE_DEVICE
):
3205 case C(UR_SET_FEATURE
, UT_WRITE_DEVICE
):
3206 case C(UR_SET_FEATURE
, UT_WRITE_INTERFACE
):
3207 case C(UR_SET_FEATURE
, UT_WRITE_ENDPOINT
):
3210 case C(UR_SET_INTERFACE
, UT_WRITE_INTERFACE
):
3212 case C(UR_SYNCH_FRAME
, UT_WRITE_ENDPOINT
):
3215 case C(UR_CLEAR_FEATURE
, UT_WRITE_CLASS_DEVICE
):
3217 case C(UR_CLEAR_FEATURE
, UT_WRITE_CLASS_OTHER
):
3218 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE "
3219 "port=%d feature=%d\n",
3222 port
= UHCI_PORTSC1
;
3223 else if (index
== 2)
3224 port
= UHCI_PORTSC2
;
3230 case UHF_PORT_ENABLE
:
3231 x
= URWMASK(UREAD2(sc
, port
));
3232 UWRITE2(sc
, port
, x
& ~UHCI_PORTSC_PE
);
3234 case UHF_PORT_SUSPEND
:
3235 x
= URWMASK(UREAD2(sc
, port
));
3236 UWRITE2(sc
, port
, x
& ~UHCI_PORTSC_SUSP
);
3238 case UHF_PORT_RESET
:
3239 x
= URWMASK(UREAD2(sc
, port
));
3240 UWRITE2(sc
, port
, x
& ~UHCI_PORTSC_PR
);
3242 case UHF_C_PORT_CONNECTION
:
3243 x
= URWMASK(UREAD2(sc
, port
));
3244 UWRITE2(sc
, port
, x
| UHCI_PORTSC_CSC
);
3246 case UHF_C_PORT_ENABLE
:
3247 x
= URWMASK(UREAD2(sc
, port
));
3248 UWRITE2(sc
, port
, x
| UHCI_PORTSC_POEDC
);
3250 case UHF_C_PORT_OVER_CURRENT
:
3251 x
= URWMASK(UREAD2(sc
, port
));
3252 UWRITE2(sc
, port
, x
| UHCI_PORTSC_OCIC
);
3254 case UHF_C_PORT_RESET
:
3256 err
= USBD_NORMAL_COMPLETION
;
3258 case UHF_PORT_CONNECTION
:
3259 case UHF_PORT_OVER_CURRENT
:
3260 case UHF_PORT_POWER
:
3261 case UHF_PORT_LOW_SPEED
:
3262 case UHF_C_PORT_SUSPEND
:
3268 case C(UR_GET_BUS_STATE
, UT_READ_CLASS_OTHER
):
3270 port
= UHCI_PORTSC1
;
3271 else if (index
== 2)
3272 port
= UHCI_PORTSC2
;
3279 (UREAD2(sc
, port
) & UHCI_PORTSC_LS
) >>
3280 UHCI_PORTSC_LS_SHIFT
;
3284 case C(UR_GET_DESCRIPTOR
, UT_READ_CLASS_DEVICE
):
3285 if ((value
& 0xff) != 0) {
3289 l
= min(len
, USB_HUB_DESCRIPTOR_SIZE
);
3291 memcpy(buf
, &uhci_hubd_piix
, l
);
3293 case C(UR_GET_STATUS
, UT_READ_CLASS_DEVICE
):
3298 memset(buf
, 0, len
);
3301 case C(UR_GET_STATUS
, UT_READ_CLASS_OTHER
):
3303 port
= UHCI_PORTSC1
;
3304 else if (index
== 2)
3305 port
= UHCI_PORTSC2
;
3314 x
= UREAD2(sc
, port
);
3315 status
= change
= 0;
3316 if (x
& UHCI_PORTSC_CCS
)
3317 status
|= UPS_CURRENT_CONNECT_STATUS
;
3318 if (x
& UHCI_PORTSC_CSC
)
3319 change
|= UPS_C_CONNECT_STATUS
;
3320 if (x
& UHCI_PORTSC_PE
)
3321 status
|= UPS_PORT_ENABLED
;
3322 if (x
& UHCI_PORTSC_POEDC
)
3323 change
|= UPS_C_PORT_ENABLED
;
3324 if (x
& UHCI_PORTSC_OCI
)
3325 status
|= UPS_OVERCURRENT_INDICATOR
;
3326 if (x
& UHCI_PORTSC_OCIC
)
3327 change
|= UPS_C_OVERCURRENT_INDICATOR
;
3328 if (x
& UHCI_PORTSC_SUSP
)
3329 status
|= UPS_SUSPEND
;
3330 if (x
& UHCI_PORTSC_LSDA
)
3331 status
|= UPS_LOW_SPEED
;
3332 status
|= UPS_PORT_POWER
;
3334 change
|= UPS_C_PORT_RESET
;
3335 USETW(ps
.wPortStatus
, status
);
3336 USETW(ps
.wPortChange
, change
);
3337 l
= min(len
, sizeof ps
);
3338 memcpy(buf
, &ps
, l
);
3341 case C(UR_SET_DESCRIPTOR
, UT_WRITE_CLASS_DEVICE
):
3344 case C(UR_SET_FEATURE
, UT_WRITE_CLASS_DEVICE
):
3346 case C(UR_SET_FEATURE
, UT_WRITE_CLASS_OTHER
):
3348 port
= UHCI_PORTSC1
;
3349 else if (index
== 2)
3350 port
= UHCI_PORTSC2
;
3356 case UHF_PORT_ENABLE
:
3357 x
= URWMASK(UREAD2(sc
, port
));
3358 UWRITE2(sc
, port
, x
| UHCI_PORTSC_PE
);
3360 case UHF_PORT_SUSPEND
:
3361 x
= URWMASK(UREAD2(sc
, port
));
3362 UWRITE2(sc
, port
, x
| UHCI_PORTSC_SUSP
);
3364 case UHF_PORT_RESET
:
3365 err
= uhci_portreset(sc
, index
);
3367 case UHF_PORT_POWER
:
3368 /* Pretend we turned on power */
3369 err
= USBD_NORMAL_COMPLETION
;
3371 case UHF_C_PORT_CONNECTION
:
3372 case UHF_C_PORT_ENABLE
:
3373 case UHF_C_PORT_OVER_CURRENT
:
3374 case UHF_PORT_CONNECTION
:
3375 case UHF_PORT_OVER_CURRENT
:
3376 case UHF_PORT_LOW_SPEED
:
3377 case UHF_C_PORT_SUSPEND
:
3378 case UHF_C_PORT_RESET
:
3388 xfer
->actlen
= totlen
;
3389 err
= USBD_NORMAL_COMPLETION
;
3393 usb_transfer_complete(xfer
);
3395 return (USBD_IN_PROGRESS
);
3398 /* Abort a root control request. */
3400 uhci_root_ctrl_abort(usbd_xfer_handle xfer
)
3402 /* Nothing to do, all transfers are synchronous. */
3405 /* Close the root pipe. */
3407 uhci_root_ctrl_close(usbd_pipe_handle pipe
)
3409 DPRINTF(("uhci_root_ctrl_close\n"));
3412 /* Abort a root interrupt request. */
3414 uhci_root_intr_abort(usbd_xfer_handle xfer
)
3416 uhci_softc_t
*sc
= (uhci_softc_t
*)xfer
->pipe
->device
->bus
;
3418 callout_stop(&sc
->sc_poll_handle
);
3419 sc
->sc_intr_xfer
= NULL
;
3421 if (xfer
->pipe
->intrxfer
== xfer
) {
3422 DPRINTF(("uhci_root_intr_abort: remove\n"));
3423 xfer
->pipe
->intrxfer
= 0;
3425 xfer
->status
= USBD_CANCELLED
;
3427 UXFER(xfer
)->iinfo
.isdone
= 1;
3429 usb_transfer_complete(xfer
);
3433 uhci_root_intr_transfer(usbd_xfer_handle xfer
)
3437 /* Insert last in queue. */
3438 err
= usb_insert_transfer(xfer
);
3443 * Pipe isn't running (otherwise err would be USBD_INPROG),
3444 * so start it first.
3446 return (uhci_root_intr_start(STAILQ_FIRST(&xfer
->pipe
->queue
)));
3449 /* Start a transfer on the root interrupt pipe */
3451 uhci_root_intr_start(usbd_xfer_handle xfer
)
3453 usbd_pipe_handle pipe
= xfer
->pipe
;
3454 uhci_softc_t
*sc
= (uhci_softc_t
*)pipe
->device
->bus
;
3456 DPRINTFN(3, ("uhci_root_intr_start: xfer=%p len=%d flags=%d\n",
3457 xfer
, xfer
->length
, xfer
->flags
));
3460 return (USBD_IOERROR
);
3462 sc
->sc_ival
= MS_TO_TICKS(xfer
->pipe
->endpoint
->edesc
->bInterval
);
3463 callout_reset(&sc
->sc_poll_handle
, sc
->sc_ival
, uhci_poll_hub
, xfer
);
3464 sc
->sc_intr_xfer
= xfer
;
3465 return (USBD_IN_PROGRESS
);
3468 /* Close the root interrupt pipe. */
3470 uhci_root_intr_close(usbd_pipe_handle pipe
)
3472 uhci_softc_t
*sc
= (uhci_softc_t
*)pipe
->device
->bus
;
3474 callout_stop(&sc
->sc_poll_handle
);
3475 sc
->sc_intr_xfer
= NULL
;
3476 DPRINTF(("uhci_root_intr_close\n"));