3 * Copyright (c) 2010 Hans Petter Selasky. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * USB eXtensible Host Controller Interface, a.k.a. USB 3.0 controller.
30 * The XHCI 1.0 spec can be found at
31 * http://www.intel.com/technology/usb/download/xHCI_Specification_for_USB.pdf
32 * and the USB 3.0 spec at
33 * http://www.usb.org/developers/docs/usb_30_spec_060910.zip
37 * A few words about the design implementation: This driver emulates
38 * the concept about TDs which is found in EHCI specification. This
39 * way we achieve that the USB controller drivers look similar to
40 * eachother which makes it easier to understand the code.
43 #ifdef USB_GLOBAL_INCLUDE_FILE
44 #include USB_GLOBAL_INCLUDE_FILE
46 #include <sys/stdint.h>
47 #include <sys/stddef.h>
48 #include <sys/param.h>
49 #include <sys/queue.h>
50 #include <sys/types.h>
51 #include <sys/systm.h>
52 #include <sys/kernel.h>
54 #include <sys/module.h>
56 #include <sys/mutex.h>
57 #include <sys/condvar.h>
58 #include <sys/sysctl.h>
60 #include <sys/unistd.h>
61 #include <sys/callout.h>
62 #include <sys/malloc.h>
65 #include <dev/usb/usb.h>
66 #include <dev/usb/usbdi.h>
68 #define USB_DEBUG_VAR xhcidebug
70 #include <dev/usb/usb_core.h>
71 #include <dev/usb/usb_debug.h>
72 #include <dev/usb/usb_busdma.h>
73 #include <dev/usb/usb_process.h>
74 #include <dev/usb/usb_transfer.h>
75 #include <dev/usb/usb_device.h>
76 #include <dev/usb/usb_hub.h>
77 #include <dev/usb/usb_util.h>
79 #include <dev/usb/usb_controller.h>
80 #include <dev/usb/usb_bus.h>
81 #endif /* USB_GLOBAL_INCLUDE_FILE */
83 #include <dev/usb/controller/xhci.h>
84 #include <dev/usb/controller/xhcireg.h>
86 #define XHCI_BUS2SC(bus) \
87 ((struct xhci_softc *)(((uint8_t *)(bus)) - \
88 ((uint8_t *)&(((struct xhci_softc *)0)->sc_bus))))
90 static SYSCTL_NODE(_hw_usb, OID_AUTO, xhci, CTLFLAG_RW, 0, "USB XHCI");
92 static int xhcistreams;
93 SYSCTL_INT(_hw_usb_xhci, OID_AUTO, streams, CTLFLAG_RW | CTLFLAG_TUN,
94 &xhcistreams, 0, "Set to enable streams mode support");
95 TUNABLE_INT("hw.usb.xhci.streams", &xhcistreams);
100 static int xhcipolling;
102 SYSCTL_INT(_hw_usb_xhci, OID_AUTO, debug, CTLFLAG_RW | CTLFLAG_TUN,
103 &xhcidebug, 0, "Debug level");
104 TUNABLE_INT("hw.usb.xhci.debug", &xhcidebug);
105 SYSCTL_INT(_hw_usb_xhci, OID_AUTO, xhci_port_route, CTLFLAG_RW | CTLFLAG_TUN,
106 &xhciroute, 0, "Routing bitmap for switching EHCI ports to XHCI controller");
107 TUNABLE_INT("hw.usb.xhci.xhci_port_route", &xhciroute);
108 SYSCTL_INT(_hw_usb_xhci, OID_AUTO, use_polling, CTLFLAG_RW | CTLFLAG_TUN,
109 &xhcipolling, 0, "Set to enable software interrupt polling for XHCI controller");
110 TUNABLE_INT("hw.usb.xhci.use_polling", &xhcipolling);
115 #define XHCI_INTR_ENDPT 1
117 struct xhci_std_temp {
118 struct xhci_softc *sc;
119 struct usb_page_cache *pc;
121 struct xhci_td *td_next;
124 uint32_t max_packet_size;
136 uint8_t do_isoc_sync;
139 static void xhci_do_poll(struct usb_bus *);
140 static void xhci_device_done(struct usb_xfer *, usb_error_t);
141 static void xhci_root_intr(struct xhci_softc *);
142 static void xhci_free_device_ext(struct usb_device *);
143 static struct xhci_endpoint_ext *xhci_get_endpoint_ext(struct usb_device *,
144 struct usb_endpoint_descriptor *);
145 static usb_proc_callback_t xhci_configure_msg;
146 static usb_error_t xhci_configure_device(struct usb_device *);
147 static usb_error_t xhci_configure_endpoint(struct usb_device *,
148 struct usb_endpoint_descriptor *, struct xhci_endpoint_ext *,
149 uint16_t, uint8_t, uint8_t, uint8_t, uint16_t, uint16_t,
151 static usb_error_t xhci_configure_mask(struct usb_device *,
153 static usb_error_t xhci_cmd_evaluate_ctx(struct xhci_softc *,
155 static void xhci_endpoint_doorbell(struct usb_xfer *);
156 static void xhci_ctx_set_le32(struct xhci_softc *sc, volatile uint32_t *ptr, uint32_t val);
157 static uint32_t xhci_ctx_get_le32(struct xhci_softc *sc, volatile uint32_t *ptr);
158 static void xhci_ctx_set_le64(struct xhci_softc *sc, volatile uint64_t *ptr, uint64_t val);
160 static uint64_t xhci_ctx_get_le64(struct xhci_softc *sc, volatile uint64_t *ptr);
163 extern struct usb_bus_methods xhci_bus_methods;
167 xhci_dump_trb(struct xhci_trb *trb)
169 DPRINTFN(5, "trb = %p\n", trb);
170 DPRINTFN(5, "qwTrb0 = 0x%016llx\n", (long long)le64toh(trb->qwTrb0));
171 DPRINTFN(5, "dwTrb2 = 0x%08x\n", le32toh(trb->dwTrb2));
172 DPRINTFN(5, "dwTrb3 = 0x%08x\n", le32toh(trb->dwTrb3));
176 xhci_dump_endpoint(struct xhci_softc *sc, struct xhci_endp_ctx *pep)
178 DPRINTFN(5, "pep = %p\n", pep);
179 DPRINTFN(5, "dwEpCtx0=0x%08x\n", xhci_ctx_get_le32(sc, &pep->dwEpCtx0));
180 DPRINTFN(5, "dwEpCtx1=0x%08x\n", xhci_ctx_get_le32(sc, &pep->dwEpCtx1));
181 DPRINTFN(5, "qwEpCtx2=0x%016llx\n", (long long)xhci_ctx_get_le64(sc, &pep->qwEpCtx2));
182 DPRINTFN(5, "dwEpCtx4=0x%08x\n", xhci_ctx_get_le32(sc, &pep->dwEpCtx4));
183 DPRINTFN(5, "dwEpCtx5=0x%08x\n", xhci_ctx_get_le32(sc, &pep->dwEpCtx5));
184 DPRINTFN(5, "dwEpCtx6=0x%08x\n", xhci_ctx_get_le32(sc, &pep->dwEpCtx6));
185 DPRINTFN(5, "dwEpCtx7=0x%08x\n", xhci_ctx_get_le32(sc, &pep->dwEpCtx7));
189 xhci_dump_device(struct xhci_softc *sc, struct xhci_slot_ctx *psl)
191 DPRINTFN(5, "psl = %p\n", psl);
192 DPRINTFN(5, "dwSctx0=0x%08x\n", xhci_ctx_get_le32(sc, &psl->dwSctx0));
193 DPRINTFN(5, "dwSctx1=0x%08x\n", xhci_ctx_get_le32(sc, &psl->dwSctx1));
194 DPRINTFN(5, "dwSctx2=0x%08x\n", xhci_ctx_get_le32(sc, &psl->dwSctx2));
195 DPRINTFN(5, "dwSctx3=0x%08x\n", xhci_ctx_get_le32(sc, &psl->dwSctx3));
200 xhci_use_polling(void)
203 return (xhcipolling != 0);
210 xhci_iterate_hw_softc(struct usb_bus *bus, usb_bus_mem_sub_cb_t *cb)
212 struct xhci_softc *sc = XHCI_BUS2SC(bus);
215 cb(bus, &sc->sc_hw.root_pc, &sc->sc_hw.root_pg,
216 sizeof(struct xhci_hw_root), XHCI_PAGE_SIZE);
218 cb(bus, &sc->sc_hw.ctx_pc, &sc->sc_hw.ctx_pg,
219 sizeof(struct xhci_dev_ctx_addr), XHCI_PAGE_SIZE);
221 for (i = 0; i != XHCI_MAX_SCRATCHPADS; i++) {
222 cb(bus, &sc->sc_hw.scratch_pc[i], &sc->sc_hw.scratch_pg[i],
223 XHCI_PAGE_SIZE, XHCI_PAGE_SIZE);
228 xhci_ctx_set_le32(struct xhci_softc *sc, volatile uint32_t *ptr, uint32_t val)
230 if (sc->sc_ctx_is_64_byte) {
232 /* exploit the fact that our structures are XHCI_PAGE_SIZE aligned */
233 /* all contexts are initially 32-bytes */
234 offset = ((uintptr_t)ptr) & ((XHCI_PAGE_SIZE - 1) & ~(31U));
235 ptr = (volatile uint32_t *)(((volatile uint8_t *)ptr) + offset);
241 xhci_ctx_get_le32(struct xhci_softc *sc, volatile uint32_t *ptr)
243 if (sc->sc_ctx_is_64_byte) {
245 /* exploit the fact that our structures are XHCI_PAGE_SIZE aligned */
246 /* all contexts are initially 32-bytes */
247 offset = ((uintptr_t)ptr) & ((XHCI_PAGE_SIZE - 1) & ~(31U));
248 ptr = (volatile uint32_t *)(((volatile uint8_t *)ptr) + offset);
250 return (le32toh(*ptr));
254 xhci_ctx_set_le64(struct xhci_softc *sc, volatile uint64_t *ptr, uint64_t val)
256 if (sc->sc_ctx_is_64_byte) {
258 /* exploit the fact that our structures are XHCI_PAGE_SIZE aligned */
259 /* all contexts are initially 32-bytes */
260 offset = ((uintptr_t)ptr) & ((XHCI_PAGE_SIZE - 1) & ~(31U));
261 ptr = (volatile uint64_t *)(((volatile uint8_t *)ptr) + offset);
268 xhci_ctx_get_le64(struct xhci_softc *sc, volatile uint64_t *ptr)
270 if (sc->sc_ctx_is_64_byte) {
272 /* exploit the fact that our structures are XHCI_PAGE_SIZE aligned */
273 /* all contexts are initially 32-bytes */
274 offset = ((uintptr_t)ptr) & ((XHCI_PAGE_SIZE - 1) & ~(31U));
275 ptr = (volatile uint64_t *)(((volatile uint8_t *)ptr) + offset);
277 return (le64toh(*ptr));
282 xhci_reset_command_queue_locked(struct xhci_softc *sc)
284 struct usb_page_search buf_res;
285 struct xhci_hw_root *phwr;
291 temp = XREAD4(sc, oper, XHCI_CRCR_LO);
292 if (temp & XHCI_CRCR_LO_CRR) {
293 DPRINTF("Command ring running\n");
294 temp &= ~(XHCI_CRCR_LO_CS | XHCI_CRCR_LO_CA);
297 * Try to abort the last command as per section
298 * 4.6.1.2 "Aborting a Command" of the XHCI
302 /* stop and cancel */
303 XWRITE4(sc, oper, XHCI_CRCR_LO, temp | XHCI_CRCR_LO_CS);
304 XWRITE4(sc, oper, XHCI_CRCR_HI, 0);
306 XWRITE4(sc, oper, XHCI_CRCR_LO, temp | XHCI_CRCR_LO_CA);
307 XWRITE4(sc, oper, XHCI_CRCR_HI, 0);
310 usb_pause_mtx(&sc->sc_bus.bus_mtx, hz / 4);
312 /* check if command ring is still running */
313 temp = XREAD4(sc, oper, XHCI_CRCR_LO);
314 if (temp & XHCI_CRCR_LO_CRR) {
315 DPRINTF("Comand ring still running\n");
316 return (USB_ERR_IOERROR);
320 /* reset command ring */
321 sc->sc_command_ccs = 1;
322 sc->sc_command_idx = 0;
324 usbd_get_page(&sc->sc_hw.root_pc, 0, &buf_res);
326 /* setup command ring control base address */
327 addr = buf_res.physaddr;
328 phwr = buf_res.buffer;
329 addr += (uintptr_t)&((struct xhci_hw_root *)0)->hwr_commands[0];
331 DPRINTF("CRCR=0x%016llx\n", (unsigned long long)addr);
333 memset(phwr->hwr_commands, 0, sizeof(phwr->hwr_commands));
334 phwr->hwr_commands[XHCI_MAX_COMMANDS - 1].qwTrb0 = htole64(addr);
336 usb_pc_cpu_flush(&sc->sc_hw.root_pc);
338 XWRITE4(sc, oper, XHCI_CRCR_LO, ((uint32_t)addr) | XHCI_CRCR_LO_RCS);
339 XWRITE4(sc, oper, XHCI_CRCR_HI, (uint32_t)(addr >> 32));
345 xhci_start_controller(struct xhci_softc *sc)
347 struct usb_page_search buf_res;
348 struct xhci_hw_root *phwr;
349 struct xhci_dev_ctx_addr *pdctxa;
357 sc->sc_oper_off = XREAD1(sc, capa, XHCI_CAPLENGTH);
358 sc->sc_runt_off = XREAD4(sc, capa, XHCI_RTSOFF) & ~0x1F;
359 sc->sc_door_off = XREAD4(sc, capa, XHCI_DBOFF) & ~0x3;
361 DPRINTF("CAPLENGTH=0x%x\n", sc->sc_oper_off);
362 DPRINTF("RUNTIMEOFFSET=0x%x\n", sc->sc_runt_off);
363 DPRINTF("DOOROFFSET=0x%x\n", sc->sc_door_off);
365 sc->sc_event_ccs = 1;
366 sc->sc_event_idx = 0;
367 sc->sc_command_ccs = 1;
368 sc->sc_command_idx = 0;
370 DPRINTF("xHCI version = 0x%04x\n", XREAD2(sc, capa, XHCI_HCIVERSION));
372 temp = XREAD4(sc, capa, XHCI_HCSPARAMS0);
374 DPRINTF("HCS0 = 0x%08x\n", temp);
376 if (XHCI_HCS0_CSZ(temp)) {
377 sc->sc_ctx_is_64_byte = 1;
378 device_printf(sc->sc_bus.parent, "64 byte context size.\n");
380 sc->sc_ctx_is_64_byte = 0;
381 device_printf(sc->sc_bus.parent, "32 byte context size.\n");
384 /* Reset controller */
385 XWRITE4(sc, oper, XHCI_USBCMD, XHCI_CMD_HCRST);
387 for (i = 0; i != 100; i++) {
388 usb_pause_mtx(NULL, hz / 100);
389 temp = (XREAD4(sc, oper, XHCI_USBCMD) & XHCI_CMD_HCRST) |
390 (XREAD4(sc, oper, XHCI_USBSTS) & XHCI_STS_CNR);
396 device_printf(sc->sc_bus.parent, "Controller "
398 return (USB_ERR_IOERROR);
401 if (!(XREAD4(sc, oper, XHCI_PAGESIZE) & XHCI_PAGESIZE_4K)) {
402 device_printf(sc->sc_bus.parent, "Controller does "
403 "not support 4K page size.\n");
404 return (USB_ERR_IOERROR);
407 temp = XREAD4(sc, capa, XHCI_HCSPARAMS1);
409 i = XHCI_HCS1_N_PORTS(temp);
412 device_printf(sc->sc_bus.parent, "Invalid number "
413 "of ports: %u\n", i);
414 return (USB_ERR_IOERROR);
418 sc->sc_noslot = XHCI_HCS1_DEVSLOT_MAX(temp);
420 if (sc->sc_noslot > XHCI_MAX_DEVICES)
421 sc->sc_noslot = XHCI_MAX_DEVICES;
423 /* setup number of device slots */
425 DPRINTF("CONFIG=0x%08x -> 0x%08x\n",
426 XREAD4(sc, oper, XHCI_CONFIG), sc->sc_noslot);
428 XWRITE4(sc, oper, XHCI_CONFIG, sc->sc_noslot);
430 DPRINTF("Max slots: %u\n", sc->sc_noslot);
432 temp = XREAD4(sc, capa, XHCI_HCSPARAMS2);
434 sc->sc_noscratch = XHCI_HCS2_SPB_MAX(temp);
436 if (sc->sc_noscratch > XHCI_MAX_SCRATCHPADS) {
437 device_printf(sc->sc_bus.parent, "XHCI request "
438 "too many scratchpads\n");
439 return (USB_ERR_NOMEM);
442 DPRINTF("Max scratch: %u\n", sc->sc_noscratch);
444 temp = XREAD4(sc, capa, XHCI_HCSPARAMS3);
446 sc->sc_exit_lat_max = XHCI_HCS3_U1_DEL(temp) +
447 XHCI_HCS3_U2_DEL(temp) + 250 /* us */;
449 temp = XREAD4(sc, oper, XHCI_USBSTS);
451 /* clear interrupts */
452 XWRITE4(sc, oper, XHCI_USBSTS, temp);
453 /* disable all device notifications */
454 XWRITE4(sc, oper, XHCI_DNCTRL, 0);
456 /* setup device context base address */
457 usbd_get_page(&sc->sc_hw.ctx_pc, 0, &buf_res);
458 pdctxa = buf_res.buffer;
459 memset(pdctxa, 0, sizeof(*pdctxa));
461 addr = buf_res.physaddr;
462 addr += (uintptr_t)&((struct xhci_dev_ctx_addr *)0)->qwSpBufPtr[0];
464 /* slot 0 points to the table of scratchpad pointers */
465 pdctxa->qwBaaDevCtxAddr[0] = htole64(addr);
467 for (i = 0; i != sc->sc_noscratch; i++) {
468 struct usb_page_search buf_scp;
469 usbd_get_page(&sc->sc_hw.scratch_pc[i], 0, &buf_scp);
470 pdctxa->qwSpBufPtr[i] = htole64((uint64_t)buf_scp.physaddr);
473 addr = buf_res.physaddr;
475 XWRITE4(sc, oper, XHCI_DCBAAP_LO, (uint32_t)addr);
476 XWRITE4(sc, oper, XHCI_DCBAAP_HI, (uint32_t)(addr >> 32));
477 XWRITE4(sc, oper, XHCI_DCBAAP_LO, (uint32_t)addr);
478 XWRITE4(sc, oper, XHCI_DCBAAP_HI, (uint32_t)(addr >> 32));
480 /* Setup event table size */
482 temp = XREAD4(sc, capa, XHCI_HCSPARAMS2);
484 DPRINTF("HCS2=0x%08x\n", temp);
486 temp = XHCI_HCS2_ERST_MAX(temp);
488 if (temp > XHCI_MAX_RSEG)
489 temp = XHCI_MAX_RSEG;
491 sc->sc_erst_max = temp;
493 DPRINTF("ERSTSZ=0x%08x -> 0x%08x\n",
494 XREAD4(sc, runt, XHCI_ERSTSZ(0)), temp);
496 XWRITE4(sc, runt, XHCI_ERSTSZ(0), XHCI_ERSTS_SET(temp));
498 /* Check if we should use the default IMOD value */
499 if (sc->sc_imod_default == 0)
500 sc->sc_imod_default = XHCI_IMOD_DEFAULT;
502 /* Setup interrupt rate */
503 XWRITE4(sc, runt, XHCI_IMOD(0), sc->sc_imod_default);
505 usbd_get_page(&sc->sc_hw.root_pc, 0, &buf_res);
507 phwr = buf_res.buffer;
508 addr = buf_res.physaddr;
509 addr += (uintptr_t)&((struct xhci_hw_root *)0)->hwr_events[0];
511 /* reset hardware root structure */
512 memset(phwr, 0, sizeof(*phwr));
514 phwr->hwr_ring_seg[0].qwEvrsTablePtr = htole64(addr);
515 phwr->hwr_ring_seg[0].dwEvrsTableSize = htole32(XHCI_MAX_EVENTS);
517 DPRINTF("ERDP(0)=0x%016llx\n", (unsigned long long)addr);
519 XWRITE4(sc, runt, XHCI_ERDP_LO(0), (uint32_t)addr);
520 XWRITE4(sc, runt, XHCI_ERDP_HI(0), (uint32_t)(addr >> 32));
522 addr = (uint64_t)buf_res.physaddr;
524 DPRINTF("ERSTBA(0)=0x%016llx\n", (unsigned long long)addr);
526 XWRITE4(sc, runt, XHCI_ERSTBA_LO(0), (uint32_t)addr);
527 XWRITE4(sc, runt, XHCI_ERSTBA_HI(0), (uint32_t)(addr >> 32));
529 /* Setup interrupter registers */
531 temp = XREAD4(sc, runt, XHCI_IMAN(0));
532 temp |= XHCI_IMAN_INTR_ENA;
533 XWRITE4(sc, runt, XHCI_IMAN(0), temp);
535 /* setup command ring control base address */
536 addr = buf_res.physaddr;
537 addr += (uintptr_t)&((struct xhci_hw_root *)0)->hwr_commands[0];
539 DPRINTF("CRCR=0x%016llx\n", (unsigned long long)addr);
541 XWRITE4(sc, oper, XHCI_CRCR_LO, ((uint32_t)addr) | XHCI_CRCR_LO_RCS);
542 XWRITE4(sc, oper, XHCI_CRCR_HI, (uint32_t)(addr >> 32));
544 phwr->hwr_commands[XHCI_MAX_COMMANDS - 1].qwTrb0 = htole64(addr);
546 usb_bus_mem_flush_all(&sc->sc_bus, &xhci_iterate_hw_softc);
549 XWRITE4(sc, oper, XHCI_USBCMD, XHCI_CMD_RS |
550 XHCI_CMD_INTE | XHCI_CMD_HSEE);
552 for (i = 0; i != 100; i++) {
553 usb_pause_mtx(NULL, hz / 100);
554 temp = XREAD4(sc, oper, XHCI_USBSTS) & XHCI_STS_HCH;
559 XWRITE4(sc, oper, XHCI_USBCMD, 0);
560 device_printf(sc->sc_bus.parent, "Run timeout.\n");
561 return (USB_ERR_IOERROR);
564 /* catch any lost interrupts */
565 xhci_do_poll(&sc->sc_bus);
567 if (sc->sc_port_route != NULL) {
568 /* Route all ports to the XHCI by default */
569 sc->sc_port_route(sc->sc_bus.parent,
570 ~xhciroute, xhciroute);
576 xhci_halt_controller(struct xhci_softc *sc)
584 sc->sc_oper_off = XREAD1(sc, capa, XHCI_CAPLENGTH);
585 sc->sc_runt_off = XREAD4(sc, capa, XHCI_RTSOFF) & ~0xF;
586 sc->sc_door_off = XREAD4(sc, capa, XHCI_DBOFF) & ~0x3;
588 /* Halt controller */
589 XWRITE4(sc, oper, XHCI_USBCMD, 0);
591 for (i = 0; i != 100; i++) {
592 usb_pause_mtx(NULL, hz / 100);
593 temp = XREAD4(sc, oper, XHCI_USBSTS) & XHCI_STS_HCH;
599 device_printf(sc->sc_bus.parent, "Controller halt timeout.\n");
600 return (USB_ERR_IOERROR);
606 xhci_init(struct xhci_softc *sc, device_t self)
608 /* initialise some bus fields */
609 sc->sc_bus.parent = self;
611 /* set the bus revision */
612 sc->sc_bus.usbrev = USB_REV_3_0;
614 /* set up the bus struct */
615 sc->sc_bus.methods = &xhci_bus_methods;
617 /* setup devices array */
618 sc->sc_bus.devices = sc->sc_devices;
619 sc->sc_bus.devices_max = XHCI_MAX_DEVICES;
621 /* set default cycle state in case of early interrupts */
622 sc->sc_event_ccs = 1;
623 sc->sc_command_ccs = 1;
625 /* setup command queue mutex and condition varible */
626 cv_init(&sc->sc_cmd_cv, "CMDQ");
627 sx_init(&sc->sc_cmd_sx, "CMDQ lock");
629 /* get all DMA memory */
630 if (usb_bus_mem_alloc_all(&sc->sc_bus,
631 USB_GET_DMA_TAG(self), &xhci_iterate_hw_softc)) {
635 sc->sc_config_msg[0].hdr.pm_callback = &xhci_configure_msg;
636 sc->sc_config_msg[0].bus = &sc->sc_bus;
637 sc->sc_config_msg[1].hdr.pm_callback = &xhci_configure_msg;
638 sc->sc_config_msg[1].bus = &sc->sc_bus;
644 xhci_uninit(struct xhci_softc *sc)
647 * NOTE: At this point the control transfer process is gone
648 * and "xhci_configure_msg" is no longer called. Consequently
649 * waiting for the configuration messages to complete is not
652 usb_bus_mem_free_all(&sc->sc_bus, &xhci_iterate_hw_softc);
654 cv_destroy(&sc->sc_cmd_cv);
655 sx_destroy(&sc->sc_cmd_sx);
659 xhci_set_hw_power_sleep(struct usb_bus *bus, uint32_t state)
661 struct xhci_softc *sc = XHCI_BUS2SC(bus);
664 case USB_HW_POWER_SUSPEND:
665 DPRINTF("Stopping the XHCI\n");
666 xhci_halt_controller(sc);
668 case USB_HW_POWER_SHUTDOWN:
669 DPRINTF("Stopping the XHCI\n");
670 xhci_halt_controller(sc);
672 case USB_HW_POWER_RESUME:
673 DPRINTF("Starting the XHCI\n");
674 xhci_start_controller(sc);
682 xhci_generic_done_sub(struct usb_xfer *xfer)
685 struct xhci_td *td_alt_next;
689 td = xfer->td_transfer_cache;
690 td_alt_next = td->alt_next;
692 if (xfer->aframes != xfer->nframes)
693 usbd_xfer_set_frame_len(xfer, xfer->aframes, 0);
697 usb_pc_cpu_invalidate(td->page_cache);
702 DPRINTFN(4, "xfer=%p[%u/%u] rem=%u/%u status=%u\n",
703 xfer, (unsigned int)xfer->aframes,
704 (unsigned int)xfer->nframes,
705 (unsigned int)len, (unsigned int)td->len,
706 (unsigned int)status);
709 * Verify the status length and
710 * add the length to "frlengths[]":
713 /* should not happen */
714 DPRINTF("Invalid status length, "
715 "0x%04x/0x%04x bytes\n", len, td->len);
716 status = XHCI_TRB_ERROR_LENGTH;
717 } else if (xfer->aframes != xfer->nframes) {
718 xfer->frlengths[xfer->aframes] += td->len - len;
720 /* Check for last transfer */
721 if (((void *)td) == xfer->td_transfer_last) {
725 /* Check for transfer error */
726 if (status != XHCI_TRB_ERROR_SHORT_PKT &&
727 status != XHCI_TRB_ERROR_SUCCESS) {
728 /* the transfer is finished */
732 /* Check for short transfer */
734 if (xfer->flags_int.short_frames_ok ||
735 xfer->flags_int.isochronous_xfr ||
736 xfer->flags_int.control_xfr) {
737 /* follow alt next */
740 /* the transfer is finished */
747 if (td->alt_next != td_alt_next) {
748 /* this USB frame is complete */
753 /* update transfer cache */
755 xfer->td_transfer_cache = td;
757 return ((status == XHCI_TRB_ERROR_STALL) ? USB_ERR_STALLED :
758 (status != XHCI_TRB_ERROR_SHORT_PKT &&
759 status != XHCI_TRB_ERROR_SUCCESS) ? USB_ERR_IOERROR :
760 USB_ERR_NORMAL_COMPLETION);
764 xhci_generic_done(struct usb_xfer *xfer)
768 DPRINTFN(13, "xfer=%p endpoint=%p transfer done\n",
769 xfer, xfer->endpoint);
773 xfer->td_transfer_cache = xfer->td_transfer_first;
775 if (xfer->flags_int.control_xfr) {
777 if (xfer->flags_int.control_hdr)
778 err = xhci_generic_done_sub(xfer);
782 if (xfer->td_transfer_cache == NULL)
786 while (xfer->aframes != xfer->nframes) {
788 err = xhci_generic_done_sub(xfer);
791 if (xfer->td_transfer_cache == NULL)
795 if (xfer->flags_int.control_xfr &&
796 !xfer->flags_int.control_act)
797 err = xhci_generic_done_sub(xfer);
799 /* transfer is complete */
800 xhci_device_done(xfer, err);
804 xhci_activate_transfer(struct usb_xfer *xfer)
808 td = xfer->td_transfer_cache;
810 usb_pc_cpu_invalidate(td->page_cache);
812 if (!(td->td_trb[0].dwTrb3 & htole32(XHCI_TRB_3_CYCLE_BIT))) {
814 /* activate the transfer */
816 td->td_trb[0].dwTrb3 |= htole32(XHCI_TRB_3_CYCLE_BIT);
817 usb_pc_cpu_flush(td->page_cache);
819 xhci_endpoint_doorbell(xfer);
824 xhci_skip_transfer(struct usb_xfer *xfer)
827 struct xhci_td *td_last;
829 td = xfer->td_transfer_cache;
830 td_last = xfer->td_transfer_last;
834 usb_pc_cpu_invalidate(td->page_cache);
836 if (!(td->td_trb[0].dwTrb3 & htole32(XHCI_TRB_3_CYCLE_BIT))) {
838 usb_pc_cpu_invalidate(td_last->page_cache);
840 /* copy LINK TRB to current waiting location */
842 td->td_trb[0].qwTrb0 = td_last->td_trb[td_last->ntrb].qwTrb0;
843 td->td_trb[0].dwTrb2 = td_last->td_trb[td_last->ntrb].dwTrb2;
844 usb_pc_cpu_flush(td->page_cache);
846 td->td_trb[0].dwTrb3 = td_last->td_trb[td_last->ntrb].dwTrb3;
847 usb_pc_cpu_flush(td->page_cache);
849 xhci_endpoint_doorbell(xfer);
853 /*------------------------------------------------------------------------*
854 * xhci_check_transfer
855 *------------------------------------------------------------------------*/
857 xhci_check_transfer(struct xhci_softc *sc, struct xhci_trb *trb)
859 struct xhci_endpoint_ext *pepext;
872 td_event = le64toh(trb->qwTrb0);
873 temp = le32toh(trb->dwTrb2);
875 remainder = XHCI_TRB_2_REM_GET(temp);
876 status = XHCI_TRB_2_ERROR_GET(temp);
877 stream_id = XHCI_TRB_2_STREAM_GET(temp);
879 temp = le32toh(trb->dwTrb3);
880 epno = XHCI_TRB_3_EP_GET(temp);
881 index = XHCI_TRB_3_SLOT_GET(temp);
883 /* check if error means halted */
884 halted = (status != XHCI_TRB_ERROR_SHORT_PKT &&
885 status != XHCI_TRB_ERROR_SUCCESS);
887 DPRINTF("slot=%u epno=%u stream=%u remainder=%u status=%u\n",
888 index, epno, stream_id, remainder, status);
890 if (index > sc->sc_noslot) {
891 DPRINTF("Invalid slot.\n");
895 if ((epno == 0) || (epno >= XHCI_MAX_ENDPOINTS)) {
896 DPRINTF("Invalid endpoint.\n");
900 pepext = &sc->sc_hw.devs[index].endp[epno];
902 if (pepext->trb_ep_mode != USB_EP_MODE_STREAMS) {
904 DPRINTF("stream_id=0\n");
905 } else if (stream_id >= XHCI_MAX_STREAMS) {
906 DPRINTF("Invalid stream ID.\n");
910 /* try to find the USB transfer that generated the event */
911 for (i = 0; i != (XHCI_MAX_TRANSFERS - 1); i++) {
912 struct usb_xfer *xfer;
915 xfer = pepext->xfer[i + (XHCI_MAX_TRANSFERS * stream_id)];
919 td = xfer->td_transfer_cache;
921 DPRINTFN(5, "Checking if 0x%016llx == (0x%016llx .. 0x%016llx)\n",
923 (long long)td->td_self,
924 (long long)td->td_self + sizeof(td->td_trb));
927 * NOTE: Some XHCI implementations might not trigger
928 * an event on the last LINK TRB so we need to
929 * consider both the last and second last event
930 * address as conditions for a successful transfer.
932 * NOTE: We assume that the XHCI will only trigger one
933 * event per chain of TRBs.
936 offset = td_event - td->td_self;
939 offset < (int64_t)sizeof(td->td_trb)) {
941 usb_pc_cpu_invalidate(td->page_cache);
943 /* compute rest of remainder, if any */
944 for (i = (offset / 16) + 1; i < td->ntrb; i++) {
945 temp = le32toh(td->td_trb[i].dwTrb2);
946 remainder += XHCI_TRB_2_BYTES_GET(temp);
949 DPRINTFN(5, "New remainder: %u\n", remainder);
951 /* clear isochronous transfer errors */
952 if (xfer->flags_int.isochronous_xfr) {
955 status = XHCI_TRB_ERROR_SUCCESS;
960 /* "td->remainder" is verified later */
961 td->remainder = remainder;
964 usb_pc_cpu_flush(td->page_cache);
967 * 1) Last transfer descriptor makes the
970 if (((void *)td) == xfer->td_transfer_last) {
971 DPRINTF("TD is last\n");
972 xhci_generic_done(xfer);
977 * 2) Any kind of error makes the transfer
981 DPRINTF("TD has I/O error\n");
982 xhci_generic_done(xfer);
987 * 3) If there is no alternate next transfer,
988 * a short packet also makes the transfer done
990 if (td->remainder > 0) {
991 if (td->alt_next == NULL) {
993 "short TD has no alternate next\n");
994 xhci_generic_done(xfer);
997 DPRINTF("TD has short pkt\n");
998 if (xfer->flags_int.short_frames_ok ||
999 xfer->flags_int.isochronous_xfr ||
1000 xfer->flags_int.control_xfr) {
1001 /* follow the alt next */
1002 xfer->td_transfer_cache = td->alt_next;
1003 xhci_activate_transfer(xfer);
1006 xhci_skip_transfer(xfer);
1007 xhci_generic_done(xfer);
1012 * 4) Transfer complete - go to next TD
1014 DPRINTF("Following next TD\n");
1015 xfer->td_transfer_cache = td->obj_next;
1016 xhci_activate_transfer(xfer);
1017 break; /* there should only be one match */
1023 xhci_check_command(struct xhci_softc *sc, struct xhci_trb *trb)
1025 if (sc->sc_cmd_addr == trb->qwTrb0) {
1026 DPRINTF("Received command event\n");
1027 sc->sc_cmd_result[0] = trb->dwTrb2;
1028 sc->sc_cmd_result[1] = trb->dwTrb3;
1029 cv_signal(&sc->sc_cmd_cv);
1030 return (1); /* command match */
1036 xhci_interrupt_poll(struct xhci_softc *sc)
1038 struct usb_page_search buf_res;
1039 struct xhci_hw_root *phwr;
1049 usbd_get_page(&sc->sc_hw.root_pc, 0, &buf_res);
1051 phwr = buf_res.buffer;
1053 /* Receive any events */
1055 usb_pc_cpu_invalidate(&sc->sc_hw.root_pc);
1057 i = sc->sc_event_idx;
1058 j = sc->sc_event_ccs;
1063 temp = le32toh(phwr->hwr_events[i].dwTrb3);
1065 k = (temp & XHCI_TRB_3_CYCLE_BIT) ? 1 : 0;
1070 event = XHCI_TRB_3_TYPE_GET(temp);
1072 DPRINTFN(10, "event[%u] = %u (0x%016llx 0x%08lx 0x%08lx)\n",
1073 i, event, (long long)le64toh(phwr->hwr_events[i].qwTrb0),
1074 (long)le32toh(phwr->hwr_events[i].dwTrb2),
1075 (long)le32toh(phwr->hwr_events[i].dwTrb3));
1078 case XHCI_TRB_EVENT_TRANSFER:
1079 xhci_check_transfer(sc, &phwr->hwr_events[i]);
1081 case XHCI_TRB_EVENT_CMD_COMPLETE:
1082 retval |= xhci_check_command(sc, &phwr->hwr_events[i]);
1085 DPRINTF("Unhandled event = %u\n", event);
1091 if (i == XHCI_MAX_EVENTS) {
1095 /* check for timeout */
1101 sc->sc_event_idx = i;
1102 sc->sc_event_ccs = j;
1105 * NOTE: The Event Ring Dequeue Pointer Register is 64-bit
1106 * latched. That means to activate the register we need to
1107 * write both the low and high double word of the 64-bit
1111 addr = (uint32_t)buf_res.physaddr;
1112 addr += (uintptr_t)&((struct xhci_hw_root *)0)->hwr_events[i];
1114 /* try to clear busy bit */
1115 addr |= XHCI_ERDP_LO_BUSY;
1117 XWRITE4(sc, runt, XHCI_ERDP_LO(0), (uint32_t)addr);
1118 XWRITE4(sc, runt, XHCI_ERDP_HI(0), (uint32_t)(addr >> 32));
1124 xhci_do_command(struct xhci_softc *sc, struct xhci_trb *trb,
1125 uint16_t timeout_ms)
1127 struct usb_page_search buf_res;
1128 struct xhci_hw_root *phwr;
1133 uint8_t timeout = 0;
1136 XHCI_CMD_ASSERT_LOCKED(sc);
1138 /* get hardware root structure */
1140 usbd_get_page(&sc->sc_hw.root_pc, 0, &buf_res);
1142 phwr = buf_res.buffer;
1146 USB_BUS_LOCK(&sc->sc_bus);
1148 i = sc->sc_command_idx;
1149 j = sc->sc_command_ccs;
1151 DPRINTFN(10, "command[%u] = %u (0x%016llx, 0x%08lx, 0x%08lx)\n",
1152 i, XHCI_TRB_3_TYPE_GET(le32toh(trb->dwTrb3)),
1153 (long long)le64toh(trb->qwTrb0),
1154 (long)le32toh(trb->dwTrb2),
1155 (long)le32toh(trb->dwTrb3));
1157 phwr->hwr_commands[i].qwTrb0 = trb->qwTrb0;
1158 phwr->hwr_commands[i].dwTrb2 = trb->dwTrb2;
1160 usb_pc_cpu_flush(&sc->sc_hw.root_pc);
1165 temp |= htole32(XHCI_TRB_3_CYCLE_BIT);
1167 temp &= ~htole32(XHCI_TRB_3_CYCLE_BIT);
1169 temp &= ~htole32(XHCI_TRB_3_TC_BIT);
1171 phwr->hwr_commands[i].dwTrb3 = temp;
1173 usb_pc_cpu_flush(&sc->sc_hw.root_pc);
1175 addr = buf_res.physaddr;
1176 addr += (uintptr_t)&((struct xhci_hw_root *)0)->hwr_commands[i];
1178 sc->sc_cmd_addr = htole64(addr);
1182 if (i == (XHCI_MAX_COMMANDS - 1)) {
1185 temp = htole32(XHCI_TRB_3_TC_BIT |
1186 XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_LINK) |
1187 XHCI_TRB_3_CYCLE_BIT);
1189 temp = htole32(XHCI_TRB_3_TC_BIT |
1190 XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_LINK));
1193 phwr->hwr_commands[i].dwTrb3 = temp;
1195 usb_pc_cpu_flush(&sc->sc_hw.root_pc);
1201 sc->sc_command_idx = i;
1202 sc->sc_command_ccs = j;
1204 XWRITE4(sc, door, XHCI_DOORBELL(0), 0);
1206 err = cv_timedwait(&sc->sc_cmd_cv, &sc->sc_bus.bus_mtx,
1207 USB_MS_TO_TICKS(timeout_ms));
1210 * In some error cases event interrupts are not generated.
1211 * Poll one time to see if the command has completed.
1213 if (err != 0 && xhci_interrupt_poll(sc) != 0) {
1214 DPRINTF("Command was completed when polling\n");
1218 DPRINTF("Command timeout!\n");
1220 * After some weeks of continuous operation, it has
1221 * been observed that the ASMedia Technology, ASM1042
1222 * SuperSpeed USB Host Controller can suddenly stop
1223 * accepting commands via the command queue. Try to
1224 * first reset the command queue. If that fails do a
1225 * host controller reset.
1228 xhci_reset_command_queue_locked(sc) == 0) {
1229 temp = le32toh(trb->dwTrb3);
1232 * Avoid infinite XHCI reset loops if the set
1233 * address command fails to respond due to a
1234 * non-enumerating device:
1236 if (XHCI_TRB_3_TYPE_GET(temp) == XHCI_TRB_TYPE_ADDRESS_DEVICE &&
1237 (temp & XHCI_TRB_3_BSR_BIT) == 0) {
1238 DPRINTF("Set address timeout\n");
1244 DPRINTF("Controller reset!\n");
1245 usb_bus_reset_async_locked(&sc->sc_bus);
1247 err = USB_ERR_TIMEOUT;
1251 temp = le32toh(sc->sc_cmd_result[0]);
1252 if (XHCI_TRB_2_ERROR_GET(temp) != XHCI_TRB_ERROR_SUCCESS)
1253 err = USB_ERR_IOERROR;
1255 trb->dwTrb2 = sc->sc_cmd_result[0];
1256 trb->dwTrb3 = sc->sc_cmd_result[1];
1259 USB_BUS_UNLOCK(&sc->sc_bus);
1266 xhci_cmd_nop(struct xhci_softc *sc)
1268 struct xhci_trb trb;
1275 temp = XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_NOOP);
1277 trb.dwTrb3 = htole32(temp);
1279 return (xhci_do_command(sc, &trb, 100 /* ms */));
1284 xhci_cmd_enable_slot(struct xhci_softc *sc, uint8_t *pslot)
1286 struct xhci_trb trb;
1294 trb.dwTrb3 = htole32(XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_ENABLE_SLOT));
1296 err = xhci_do_command(sc, &trb, 100 /* ms */);
1300 temp = le32toh(trb.dwTrb3);
1302 *pslot = XHCI_TRB_3_SLOT_GET(temp);
1309 xhci_cmd_disable_slot(struct xhci_softc *sc, uint8_t slot_id)
1311 struct xhci_trb trb;
1318 temp = XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_DISABLE_SLOT) |
1319 XHCI_TRB_3_SLOT_SET(slot_id);
1321 trb.dwTrb3 = htole32(temp);
1323 return (xhci_do_command(sc, &trb, 100 /* ms */));
1327 xhci_cmd_set_address(struct xhci_softc *sc, uint64_t input_ctx,
1328 uint8_t bsr, uint8_t slot_id)
1330 struct xhci_trb trb;
1335 trb.qwTrb0 = htole64(input_ctx);
1337 temp = XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_ADDRESS_DEVICE) |
1338 XHCI_TRB_3_SLOT_SET(slot_id);
1341 temp |= XHCI_TRB_3_BSR_BIT;
1343 trb.dwTrb3 = htole32(temp);
1345 return (xhci_do_command(sc, &trb, 500 /* ms */));
1349 xhci_set_address(struct usb_device *udev, struct mtx *mtx, uint16_t address)
1351 struct usb_page_search buf_inp;
1352 struct usb_page_search buf_dev;
1353 struct xhci_softc *sc = XHCI_BUS2SC(udev->bus);
1354 struct xhci_hw_dev *hdev;
1355 struct xhci_dev_ctx *pdev;
1356 struct xhci_endpoint_ext *pepext;
1362 /* the root HUB case is not handled here */
1363 if (udev->parent_hub == NULL)
1364 return (USB_ERR_INVAL);
1366 index = udev->controller_slot_id;
1368 hdev = &sc->sc_hw.devs[index];
1375 switch (hdev->state) {
1376 case XHCI_ST_DEFAULT:
1377 case XHCI_ST_ENABLED:
1379 hdev->state = XHCI_ST_ENABLED;
1381 /* set configure mask to slot and EP0 */
1382 xhci_configure_mask(udev, 3, 0);
1384 /* configure input slot context structure */
1385 err = xhci_configure_device(udev);
1388 DPRINTF("Could not configure device\n");
1392 /* configure input endpoint context structure */
1393 switch (udev->speed) {
1395 case USB_SPEED_FULL:
1398 case USB_SPEED_HIGH:
1406 pepext = xhci_get_endpoint_ext(udev,
1407 &udev->ctrl_ep_desc);
1408 err = xhci_configure_endpoint(udev,
1409 &udev->ctrl_ep_desc, pepext,
1410 0, 1, 1, 0, mps, mps, USB_EP_MODE_DEFAULT);
1413 DPRINTF("Could not configure default endpoint\n");
1417 /* execute set address command */
1418 usbd_get_page(&hdev->input_pc, 0, &buf_inp);
1420 err = xhci_cmd_set_address(sc, buf_inp.physaddr,
1421 (address == 0), index);
1424 temp = le32toh(sc->sc_cmd_result[0]);
1425 if (address == 0 && sc->sc_port_route != NULL &&
1426 XHCI_TRB_2_ERROR_GET(temp) ==
1427 XHCI_TRB_ERROR_PARAMETER) {
1428 /* LynxPoint XHCI - ports are not switchable */
1429 /* Un-route all ports from the XHCI */
1430 sc->sc_port_route(sc->sc_bus.parent, 0, ~0);
1432 DPRINTF("Could not set address "
1433 "for slot %u.\n", index);
1438 /* update device address to new value */
1440 usbd_get_page(&hdev->device_pc, 0, &buf_dev);
1441 pdev = buf_dev.buffer;
1442 usb_pc_cpu_invalidate(&hdev->device_pc);
1444 temp = xhci_ctx_get_le32(sc, &pdev->ctx_slot.dwSctx3);
1445 udev->address = XHCI_SCTX_3_DEV_ADDR_GET(temp);
1447 /* update device state to new value */
1450 hdev->state = XHCI_ST_ADDRESSED;
1452 hdev->state = XHCI_ST_DEFAULT;
1456 DPRINTF("Wrong state for set address.\n");
1457 err = USB_ERR_IOERROR;
1460 XHCI_CMD_UNLOCK(sc);
1469 xhci_cmd_configure_ep(struct xhci_softc *sc, uint64_t input_ctx,
1470 uint8_t deconfigure, uint8_t slot_id)
1472 struct xhci_trb trb;
1477 trb.qwTrb0 = htole64(input_ctx);
1479 temp = XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_CONFIGURE_EP) |
1480 XHCI_TRB_3_SLOT_SET(slot_id);
1483 temp |= XHCI_TRB_3_DCEP_BIT;
1485 trb.dwTrb3 = htole32(temp);
1487 return (xhci_do_command(sc, &trb, 100 /* ms */));
1491 xhci_cmd_evaluate_ctx(struct xhci_softc *sc, uint64_t input_ctx,
1494 struct xhci_trb trb;
1499 trb.qwTrb0 = htole64(input_ctx);
1501 temp = XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_EVALUATE_CTX) |
1502 XHCI_TRB_3_SLOT_SET(slot_id);
1503 trb.dwTrb3 = htole32(temp);
1505 return (xhci_do_command(sc, &trb, 100 /* ms */));
1509 xhci_cmd_reset_ep(struct xhci_softc *sc, uint8_t preserve,
1510 uint8_t ep_id, uint8_t slot_id)
1512 struct xhci_trb trb;
1519 temp = XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_RESET_EP) |
1520 XHCI_TRB_3_SLOT_SET(slot_id) |
1521 XHCI_TRB_3_EP_SET(ep_id);
1524 temp |= XHCI_TRB_3_PRSV_BIT;
1526 trb.dwTrb3 = htole32(temp);
1528 return (xhci_do_command(sc, &trb, 100 /* ms */));
1532 xhci_cmd_set_tr_dequeue_ptr(struct xhci_softc *sc, uint64_t dequeue_ptr,
1533 uint16_t stream_id, uint8_t ep_id, uint8_t slot_id)
1535 struct xhci_trb trb;
1540 trb.qwTrb0 = htole64(dequeue_ptr);
1542 temp = XHCI_TRB_2_STREAM_SET(stream_id);
1543 trb.dwTrb2 = htole32(temp);
1545 temp = XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_SET_TR_DEQUEUE) |
1546 XHCI_TRB_3_SLOT_SET(slot_id) |
1547 XHCI_TRB_3_EP_SET(ep_id);
1548 trb.dwTrb3 = htole32(temp);
1550 return (xhci_do_command(sc, &trb, 100 /* ms */));
1554 xhci_cmd_stop_ep(struct xhci_softc *sc, uint8_t suspend,
1555 uint8_t ep_id, uint8_t slot_id)
1557 struct xhci_trb trb;
1564 temp = XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_STOP_EP) |
1565 XHCI_TRB_3_SLOT_SET(slot_id) |
1566 XHCI_TRB_3_EP_SET(ep_id);
1569 temp |= XHCI_TRB_3_SUSP_EP_BIT;
1571 trb.dwTrb3 = htole32(temp);
1573 return (xhci_do_command(sc, &trb, 100 /* ms */));
1577 xhci_cmd_reset_dev(struct xhci_softc *sc, uint8_t slot_id)
1579 struct xhci_trb trb;
1586 temp = XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_RESET_DEVICE) |
1587 XHCI_TRB_3_SLOT_SET(slot_id);
1589 trb.dwTrb3 = htole32(temp);
1591 return (xhci_do_command(sc, &trb, 100 /* ms */));
1594 /*------------------------------------------------------------------------*
1595 * xhci_interrupt - XHCI interrupt handler
1596 *------------------------------------------------------------------------*/
1598 xhci_interrupt(struct xhci_softc *sc)
1603 USB_BUS_LOCK(&sc->sc_bus);
1605 status = XREAD4(sc, oper, XHCI_USBSTS);
1607 /* acknowledge interrupts, if any */
1609 XWRITE4(sc, oper, XHCI_USBSTS, status);
1610 DPRINTFN(16, "real interrupt (status=0x%08x)\n", status);
1613 temp = XREAD4(sc, runt, XHCI_IMAN(0));
1615 /* force clearing of pending interrupts */
1616 if (temp & XHCI_IMAN_INTR_PEND)
1617 XWRITE4(sc, runt, XHCI_IMAN(0), temp);
1619 /* check for event(s) */
1620 xhci_interrupt_poll(sc);
1622 if (status & (XHCI_STS_PCD | XHCI_STS_HCH |
1623 XHCI_STS_HSE | XHCI_STS_HCE)) {
1625 if (status & XHCI_STS_PCD) {
1629 if (status & XHCI_STS_HCH) {
1630 printf("%s: host controller halted\n",
1634 if (status & XHCI_STS_HSE) {
1635 printf("%s: host system error\n",
1639 if (status & XHCI_STS_HCE) {
1640 printf("%s: host controller error\n",
1644 USB_BUS_UNLOCK(&sc->sc_bus);
1647 /*------------------------------------------------------------------------*
1648 * xhci_timeout - XHCI timeout handler
1649 *------------------------------------------------------------------------*/
1651 xhci_timeout(void *arg)
1653 struct usb_xfer *xfer = arg;
1655 DPRINTF("xfer=%p\n", xfer);
1657 USB_BUS_LOCK_ASSERT(xfer->xroot->bus, MA_OWNED);
1659 /* transfer is transferred */
1660 xhci_device_done(xfer, USB_ERR_TIMEOUT);
1664 xhci_do_poll(struct usb_bus *bus)
1666 struct xhci_softc *sc = XHCI_BUS2SC(bus);
1668 USB_BUS_LOCK(&sc->sc_bus);
1669 xhci_interrupt_poll(sc);
1670 USB_BUS_UNLOCK(&sc->sc_bus);
1674 xhci_setup_generic_chain_sub(struct xhci_std_temp *temp)
1676 struct usb_page_search buf_res;
1678 struct xhci_td *td_next;
1679 struct xhci_td *td_alt_next;
1680 struct xhci_td *td_first;
1681 uint32_t buf_offset;
1686 uint8_t shortpkt_old;
1692 shortpkt_old = temp->shortpkt;
1693 len_old = temp->len;
1700 td_next = td_first = temp->td_next;
1704 if (temp->len == 0) {
1709 /* send a Zero Length Packet, ZLP, last */
1716 average = temp->average;
1718 if (temp->len < average) {
1719 if (temp->len % temp->max_packet_size) {
1722 average = temp->len;
1726 if (td_next == NULL)
1727 panic("%s: out of XHCI transfer descriptors!", __FUNCTION__);
1732 td_next = td->obj_next;
1734 /* check if we are pre-computing */
1738 /* update remaining length */
1740 temp->len -= average;
1744 /* fill out current TD */
1750 /* update remaining length */
1752 temp->len -= average;
1754 /* reset TRB index */
1758 if (temp->trb_type == XHCI_TRB_TYPE_SETUP_STAGE) {
1759 /* immediate data */
1764 td->td_trb[0].qwTrb0 = 0;
1766 usbd_copy_out(temp->pc, temp->offset + buf_offset,
1767 (uint8_t *)(uintptr_t)&td->td_trb[0].qwTrb0,
1770 dword = XHCI_TRB_2_BYTES_SET(8) |
1771 XHCI_TRB_2_TDSZ_SET(0) |
1772 XHCI_TRB_2_IRQ_SET(0);
1774 td->td_trb[0].dwTrb2 = htole32(dword);
1776 dword = XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_SETUP_STAGE) |
1777 XHCI_TRB_3_IDT_BIT | XHCI_TRB_3_CYCLE_BIT;
1780 if (td->td_trb[0].qwTrb0 &
1781 htole64(XHCI_TRB_0_WLENGTH_MASK)) {
1782 if (td->td_trb[0].qwTrb0 &
1783 htole64(XHCI_TRB_0_DIR_IN_MASK))
1784 dword |= XHCI_TRB_3_TRT_IN;
1786 dword |= XHCI_TRB_3_TRT_OUT;
1789 td->td_trb[0].dwTrb3 = htole32(dword);
1791 xhci_dump_trb(&td->td_trb[x]);
1799 /* fill out buffer pointers */
1802 memset(&buf_res, 0, sizeof(buf_res));
1804 usbd_get_page(temp->pc, temp->offset +
1805 buf_offset, &buf_res);
1807 /* get length to end of page */
1808 if (buf_res.length > average)
1809 buf_res.length = average;
1811 /* check for maximum length */
1812 if (buf_res.length > XHCI_TD_PAGE_SIZE)
1813 buf_res.length = XHCI_TD_PAGE_SIZE;
1815 npkt_off += buf_res.length;
1819 npkt = (len_old - npkt_off + temp->max_packet_size - 1) /
1820 temp->max_packet_size;
1827 /* fill out TRB's */
1828 td->td_trb[x].qwTrb0 =
1829 htole64((uint64_t)buf_res.physaddr);
1832 XHCI_TRB_2_BYTES_SET(buf_res.length) |
1833 XHCI_TRB_2_TDSZ_SET(npkt) |
1834 XHCI_TRB_2_IRQ_SET(0);
1836 td->td_trb[x].dwTrb2 = htole32(dword);
1838 switch (temp->trb_type) {
1839 case XHCI_TRB_TYPE_ISOCH:
1840 dword = XHCI_TRB_3_CHAIN_BIT | XHCI_TRB_3_CYCLE_BIT |
1841 XHCI_TRB_3_TBC_SET(temp->tbc) |
1842 XHCI_TRB_3_TLBPC_SET(temp->tlbpc);
1843 if (td != td_first) {
1844 dword |= XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_NORMAL);
1845 } else if (temp->do_isoc_sync != 0) {
1846 temp->do_isoc_sync = 0;
1847 /* wait until "isoc_frame" */
1848 dword |= XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_ISOCH) |
1849 XHCI_TRB_3_FRID_SET(temp->isoc_frame / 8);
1851 /* start data transfer at next interval */
1852 dword |= XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_ISOCH) |
1853 XHCI_TRB_3_ISO_SIA_BIT;
1855 if (temp->direction == UE_DIR_IN)
1856 dword |= XHCI_TRB_3_ISP_BIT;
1858 case XHCI_TRB_TYPE_DATA_STAGE:
1859 dword = XHCI_TRB_3_CHAIN_BIT | XHCI_TRB_3_CYCLE_BIT |
1860 XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_DATA_STAGE);
1861 if (temp->direction == UE_DIR_IN)
1862 dword |= XHCI_TRB_3_DIR_IN | XHCI_TRB_3_ISP_BIT;
1864 case XHCI_TRB_TYPE_STATUS_STAGE:
1865 dword = XHCI_TRB_3_CHAIN_BIT | XHCI_TRB_3_CYCLE_BIT |
1866 XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_STATUS_STAGE);
1867 if (temp->direction == UE_DIR_IN)
1868 dword |= XHCI_TRB_3_DIR_IN;
1870 default: /* XHCI_TRB_TYPE_NORMAL */
1871 dword = XHCI_TRB_3_CHAIN_BIT | XHCI_TRB_3_CYCLE_BIT |
1872 XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_NORMAL);
1873 if (temp->direction == UE_DIR_IN)
1874 dword |= XHCI_TRB_3_ISP_BIT;
1877 td->td_trb[x].dwTrb3 = htole32(dword);
1879 average -= buf_res.length;
1880 buf_offset += buf_res.length;
1882 xhci_dump_trb(&td->td_trb[x]);
1886 } while (average != 0);
1888 td->td_trb[x-1].dwTrb3 |= htole32(XHCI_TRB_3_IOC_BIT);
1890 /* store number of data TRB's */
1894 DPRINTF("NTRB=%u\n", x);
1896 /* fill out link TRB */
1898 if (td_next != NULL) {
1899 /* link the current TD with the next one */
1900 td->td_trb[x].qwTrb0 = htole64((uint64_t)td_next->td_self);
1901 DPRINTF("LINK=0x%08llx\n", (long long)td_next->td_self);
1903 /* this field will get updated later */
1904 DPRINTF("NOLINK\n");
1907 dword = XHCI_TRB_2_IRQ_SET(0);
1909 td->td_trb[x].dwTrb2 = htole32(dword);
1911 dword = XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_LINK) |
1912 XHCI_TRB_3_CYCLE_BIT | XHCI_TRB_3_IOC_BIT |
1914 * CHAIN-BIT: Ensure that a multi-TRB IN-endpoint
1915 * frame only receives a single short packet event
1916 * by setting the CHAIN bit in the LINK field. In
1917 * addition some XHCI controllers have problems
1918 * sending a ZLP unless the CHAIN-BIT is set in
1921 XHCI_TRB_3_CHAIN_BIT;
1923 td->td_trb[x].dwTrb3 = htole32(dword);
1925 td->alt_next = td_alt_next;
1927 xhci_dump_trb(&td->td_trb[x]);
1929 usb_pc_cpu_flush(td->page_cache);
1935 /* setup alt next pointer, if any */
1936 if (temp->last_frame) {
1939 /* we use this field internally */
1940 td_alt_next = td_next;
1944 temp->shortpkt = shortpkt_old;
1945 temp->len = len_old;
1950 * Remove cycle bit from the first TRB if we are
1953 if (temp->step_td != 0) {
1954 td_first->td_trb[0].dwTrb3 &= ~htole32(XHCI_TRB_3_CYCLE_BIT);
1955 usb_pc_cpu_flush(td_first->page_cache);
1958 /* clear TD SIZE to zero, hence this is the last TRB */
1959 /* remove chain bit because this is the last data TRB in the chain */
1960 td->td_trb[td->ntrb - 1].dwTrb2 &= ~htole32(XHCI_TRB_2_TDSZ_SET(15));
1961 td->td_trb[td->ntrb - 1].dwTrb3 &= ~htole32(XHCI_TRB_3_CHAIN_BIT);
1962 /* remove CHAIN-BIT from last LINK TRB */
1963 td->td_trb[td->ntrb].dwTrb3 &= ~htole32(XHCI_TRB_3_CHAIN_BIT);
1965 usb_pc_cpu_flush(td->page_cache);
1968 temp->td_next = td_next;
1972 xhci_setup_generic_chain(struct usb_xfer *xfer)
1974 struct xhci_std_temp temp;
1980 temp.do_isoc_sync = 0;
1984 temp.average = xfer->max_hc_frame_size;
1985 temp.max_packet_size = xfer->max_packet_size;
1986 temp.sc = XHCI_BUS2SC(xfer->xroot->bus);
1988 temp.last_frame = 0;
1990 temp.multishort = xfer->flags_int.isochronous_xfr ||
1991 xfer->flags_int.control_xfr ||
1992 xfer->flags_int.short_frames_ok;
1994 /* toggle the DMA set we are using */
1995 xfer->flags_int.curr_dma_set ^= 1;
1997 /* get next DMA set */
1998 td = xfer->td_start[xfer->flags_int.curr_dma_set];
2003 xfer->td_transfer_first = td;
2004 xfer->td_transfer_cache = td;
2006 if (xfer->flags_int.isochronous_xfr) {
2009 /* compute multiplier for ISOCHRONOUS transfers */
2010 mult = xfer->endpoint->ecomp ?
2011 UE_GET_SS_ISO_MULT(xfer->endpoint->ecomp->bmAttributes)
2013 /* check for USB 2.0 multiplier */
2015 mult = (xfer->endpoint->edesc->
2016 wMaxPacketSize[1] >> 3) & 3;
2024 x = XREAD4(temp.sc, runt, XHCI_MFINDEX);
2026 DPRINTF("MFINDEX=0x%08x\n", x);
2028 switch (usbd_get_speed(xfer->xroot->udev)) {
2029 case USB_SPEED_FULL:
2031 temp.isoc_delta = 8; /* 1ms */
2032 x += temp.isoc_delta - 1;
2033 x &= ~(temp.isoc_delta - 1);
2036 shift = usbd_xfer_get_fps_shift(xfer);
2037 temp.isoc_delta = 1U << shift;
2038 x += temp.isoc_delta - 1;
2039 x &= ~(temp.isoc_delta - 1);
2040 /* simple frame load balancing */
2041 x += xfer->endpoint->usb_uframe;
2045 y = XHCI_MFINDEX_GET(x - xfer->endpoint->isoc_next);
2047 if ((xfer->endpoint->is_synced == 0) ||
2048 (y < (xfer->nframes << shift)) ||
2049 (XHCI_MFINDEX_GET(-y) >= (128 * 8))) {
2051 * If there is data underflow or the pipe
2052 * queue is empty we schedule the transfer a
2053 * few frames ahead of the current frame
2054 * position. Else two isochronous transfers
2057 xfer->endpoint->isoc_next = XHCI_MFINDEX_GET(x + (3 * 8));
2058 xfer->endpoint->is_synced = 1;
2059 temp.do_isoc_sync = 1;
2061 DPRINTFN(3, "start next=%d\n", xfer->endpoint->isoc_next);
2064 /* compute isochronous completion time */
2066 y = XHCI_MFINDEX_GET(xfer->endpoint->isoc_next - (x & ~7));
2068 xfer->isoc_time_complete =
2069 usb_isoc_time_expand(&temp.sc->sc_bus, x / 8) +
2070 (y / 8) + (((xfer->nframes << shift) + 7) / 8);
2073 temp.isoc_frame = xfer->endpoint->isoc_next;
2074 temp.trb_type = XHCI_TRB_TYPE_ISOCH;
2076 xfer->endpoint->isoc_next += xfer->nframes << shift;
2078 } else if (xfer->flags_int.control_xfr) {
2080 /* check if we should prepend a setup message */
2082 if (xfer->flags_int.control_hdr) {
2084 temp.len = xfer->frlengths[0];
2085 temp.pc = xfer->frbuffers + 0;
2086 temp.shortpkt = temp.len ? 1 : 0;
2087 temp.trb_type = XHCI_TRB_TYPE_SETUP_STAGE;
2090 /* check for last frame */
2091 if (xfer->nframes == 1) {
2092 /* no STATUS stage yet, SETUP is last */
2093 if (xfer->flags_int.control_act)
2094 temp.last_frame = 1;
2097 xhci_setup_generic_chain_sub(&temp);
2101 temp.isoc_delta = 0;
2102 temp.isoc_frame = 0;
2103 temp.trb_type = XHCI_TRB_TYPE_DATA_STAGE;
2107 temp.isoc_delta = 0;
2108 temp.isoc_frame = 0;
2109 temp.trb_type = XHCI_TRB_TYPE_NORMAL;
2112 if (x != xfer->nframes) {
2113 /* setup page_cache pointer */
2114 temp.pc = xfer->frbuffers + x;
2115 /* set endpoint direction */
2116 temp.direction = UE_GET_DIR(xfer->endpointno);
2119 while (x != xfer->nframes) {
2121 /* DATA0 / DATA1 message */
2123 temp.len = xfer->frlengths[x];
2124 temp.step_td = ((xfer->endpointno & UE_DIR_IN) &&
2125 x != 0 && temp.multishort == 0);
2129 if (x == xfer->nframes) {
2130 if (xfer->flags_int.control_xfr) {
2131 /* no STATUS stage yet, DATA is last */
2132 if (xfer->flags_int.control_act)
2133 temp.last_frame = 1;
2135 temp.last_frame = 1;
2138 if (temp.len == 0) {
2140 /* make sure that we send an USB packet */
2145 temp.tlbpc = mult - 1;
2147 } else if (xfer->flags_int.isochronous_xfr) {
2152 * Isochronous transfers don't have short
2153 * packet termination:
2158 /* isochronous transfers have a transfer limit */
2160 if (temp.len > xfer->max_frame_size)
2161 temp.len = xfer->max_frame_size;
2163 /* compute TD packet count */
2164 tdpc = (temp.len + xfer->max_packet_size - 1) /
2165 xfer->max_packet_size;
2167 temp.tbc = ((tdpc + mult - 1) / mult) - 1;
2168 temp.tlbpc = (tdpc % mult);
2170 if (temp.tlbpc == 0)
2171 temp.tlbpc = mult - 1;
2176 /* regular data transfer */
2178 temp.shortpkt = xfer->flags.force_short_xfer ? 0 : 1;
2181 xhci_setup_generic_chain_sub(&temp);
2183 if (xfer->flags_int.isochronous_xfr) {
2184 temp.offset += xfer->frlengths[x - 1];
2185 temp.isoc_frame += temp.isoc_delta;
2187 /* get next Page Cache pointer */
2188 temp.pc = xfer->frbuffers + x;
2192 /* check if we should append a status stage */
2194 if (xfer->flags_int.control_xfr &&
2195 !xfer->flags_int.control_act) {
2198 * Send a DATA1 message and invert the current
2199 * endpoint direction.
2201 temp.step_td = (xfer->nframes != 0);
2202 temp.direction = UE_GET_DIR(xfer->endpointno) ^ UE_DIR_IN;
2206 temp.last_frame = 1;
2207 temp.trb_type = XHCI_TRB_TYPE_STATUS_STAGE;
2209 xhci_setup_generic_chain_sub(&temp);
2214 /* must have at least one frame! */
2216 xfer->td_transfer_last = td;
2218 DPRINTF("first=%p last=%p\n", xfer->td_transfer_first, td);
2222 xhci_set_slot_pointer(struct xhci_softc *sc, uint8_t index, uint64_t dev_addr)
2224 struct usb_page_search buf_res;
2225 struct xhci_dev_ctx_addr *pdctxa;
2227 usbd_get_page(&sc->sc_hw.ctx_pc, 0, &buf_res);
2229 pdctxa = buf_res.buffer;
2231 DPRINTF("addr[%u]=0x%016llx\n", index, (long long)dev_addr);
2233 pdctxa->qwBaaDevCtxAddr[index] = htole64(dev_addr);
2235 usb_pc_cpu_flush(&sc->sc_hw.ctx_pc);
2239 xhci_configure_mask(struct usb_device *udev, uint32_t mask, uint8_t drop)
2241 struct xhci_softc *sc = XHCI_BUS2SC(udev->bus);
2242 struct usb_page_search buf_inp;
2243 struct xhci_input_dev_ctx *pinp;
2248 index = udev->controller_slot_id;
2250 usbd_get_page(&sc->sc_hw.devs[index].input_pc, 0, &buf_inp);
2252 pinp = buf_inp.buffer;
2255 mask &= XHCI_INCTX_NON_CTRL_MASK;
2256 xhci_ctx_set_le32(sc, &pinp->ctx_input.dwInCtx0, mask);
2257 xhci_ctx_set_le32(sc, &pinp->ctx_input.dwInCtx1, 0);
2260 * Some hardware requires that we drop the endpoint
2261 * context before adding it again:
2263 xhci_ctx_set_le32(sc, &pinp->ctx_input.dwInCtx0,
2264 mask & XHCI_INCTX_NON_CTRL_MASK);
2266 /* Add new endpoint context */
2267 xhci_ctx_set_le32(sc, &pinp->ctx_input.dwInCtx1, mask);
2269 /* find most significant set bit */
2270 for (x = 31; x != 1; x--) {
2271 if (mask & (1 << x))
2278 /* figure out the maximum number of contexts */
2279 if (x > sc->sc_hw.devs[index].context_num)
2280 sc->sc_hw.devs[index].context_num = x;
2282 x = sc->sc_hw.devs[index].context_num;
2284 /* update number of contexts */
2285 temp = xhci_ctx_get_le32(sc, &pinp->ctx_slot.dwSctx0);
2286 temp &= ~XHCI_SCTX_0_CTX_NUM_SET(31);
2287 temp |= XHCI_SCTX_0_CTX_NUM_SET(x + 1);
2288 xhci_ctx_set_le32(sc, &pinp->ctx_slot.dwSctx0, temp);
2290 usb_pc_cpu_flush(&sc->sc_hw.devs[index].input_pc);
2295 xhci_configure_endpoint(struct usb_device *udev,
2296 struct usb_endpoint_descriptor *edesc, struct xhci_endpoint_ext *pepext,
2297 uint16_t interval, uint8_t max_packet_count,
2298 uint8_t mult, uint8_t fps_shift, uint16_t max_packet_size,
2299 uint16_t max_frame_size, uint8_t ep_mode)
2301 struct usb_page_search buf_inp;
2302 struct xhci_softc *sc = XHCI_BUS2SC(udev->bus);
2303 struct xhci_input_dev_ctx *pinp;
2304 uint64_t ring_addr = pepext->physaddr;
2310 index = udev->controller_slot_id;
2312 usbd_get_page(&sc->sc_hw.devs[index].input_pc, 0, &buf_inp);
2314 pinp = buf_inp.buffer;
2316 epno = edesc->bEndpointAddress;
2317 type = edesc->bmAttributes & UE_XFERTYPE;
2319 if (type == UE_CONTROL)
2322 epno = XHCI_EPNO2EPID(epno);
2325 return (USB_ERR_NO_PIPE); /* invalid */
2327 if (max_packet_count == 0)
2328 return (USB_ERR_BAD_BUFSIZE);
2333 return (USB_ERR_BAD_BUFSIZE);
2335 /* store endpoint mode */
2336 pepext->trb_ep_mode = ep_mode;
2337 usb_pc_cpu_flush(pepext->page_cache);
2339 if (ep_mode == USB_EP_MODE_STREAMS) {
2340 temp = XHCI_EPCTX_0_EPSTATE_SET(0) |
2341 XHCI_EPCTX_0_MAXP_STREAMS_SET(XHCI_MAX_STREAMS_LOG - 1) |
2342 XHCI_EPCTX_0_LSA_SET(1);
2344 ring_addr += sizeof(struct xhci_trb) *
2345 XHCI_MAX_TRANSFERS * XHCI_MAX_STREAMS;
2347 temp = XHCI_EPCTX_0_EPSTATE_SET(0) |
2348 XHCI_EPCTX_0_MAXP_STREAMS_SET(0) |
2349 XHCI_EPCTX_0_LSA_SET(0);
2351 ring_addr |= XHCI_EPCTX_2_DCS_SET(1);
2354 switch (udev->speed) {
2355 case USB_SPEED_FULL:
2368 temp |= XHCI_EPCTX_0_IVAL_SET(fps_shift);
2370 case UE_ISOCHRONOUS:
2371 temp |= XHCI_EPCTX_0_IVAL_SET(fps_shift);
2373 switch (udev->speed) {
2374 case USB_SPEED_SUPER:
2377 temp |= XHCI_EPCTX_0_MULT_SET(mult - 1);
2378 max_packet_count /= mult;
2388 xhci_ctx_set_le32(sc, &pinp->ctx_ep[epno - 1].dwEpCtx0, temp);
2391 XHCI_EPCTX_1_HID_SET(0) |
2392 XHCI_EPCTX_1_MAXB_SET(max_packet_count) |
2393 XHCI_EPCTX_1_MAXP_SIZE_SET(max_packet_size);
2396 * Always enable the "three strikes and you are gone" feature
2397 * except for ISOCHRONOUS endpoints. This is suggested by
2398 * section 4.3.3 in the XHCI specification about device slot
2401 if (type != UE_ISOCHRONOUS)
2402 temp |= XHCI_EPCTX_1_CERR_SET(3);
2406 temp |= XHCI_EPCTX_1_EPTYPE_SET(4);
2408 case UE_ISOCHRONOUS:
2409 temp |= XHCI_EPCTX_1_EPTYPE_SET(1);
2412 temp |= XHCI_EPCTX_1_EPTYPE_SET(2);
2415 temp |= XHCI_EPCTX_1_EPTYPE_SET(3);
2419 /* check for IN direction */
2421 temp |= XHCI_EPCTX_1_EPTYPE_SET(4);
2423 xhci_ctx_set_le32(sc, &pinp->ctx_ep[epno - 1].dwEpCtx1, temp);
2424 xhci_ctx_set_le64(sc, &pinp->ctx_ep[epno - 1].qwEpCtx2, ring_addr);
2426 switch (edesc->bmAttributes & UE_XFERTYPE) {
2428 case UE_ISOCHRONOUS:
2429 temp = XHCI_EPCTX_4_MAX_ESIT_PAYLOAD_SET(max_frame_size) |
2430 XHCI_EPCTX_4_AVG_TRB_LEN_SET(MIN(XHCI_PAGE_SIZE,
2434 temp = XHCI_EPCTX_4_AVG_TRB_LEN_SET(8);
2437 temp = XHCI_EPCTX_4_AVG_TRB_LEN_SET(XHCI_PAGE_SIZE);
2441 xhci_ctx_set_le32(sc, &pinp->ctx_ep[epno - 1].dwEpCtx4, temp);
2444 xhci_dump_endpoint(sc, &pinp->ctx_ep[epno - 1]);
2446 usb_pc_cpu_flush(&sc->sc_hw.devs[index].input_pc);
2448 return (0); /* success */
2452 xhci_configure_endpoint_by_xfer(struct usb_xfer *xfer)
2454 struct xhci_endpoint_ext *pepext;
2455 struct usb_endpoint_ss_comp_descriptor *ecomp;
2458 pepext = xhci_get_endpoint_ext(xfer->xroot->udev,
2459 xfer->endpoint->edesc);
2461 ecomp = xfer->endpoint->ecomp;
2463 for (x = 0; x != XHCI_MAX_STREAMS; x++) {
2466 /* halt any transfers */
2467 pepext->trb[x * XHCI_MAX_TRANSFERS].dwTrb3 = 0;
2469 /* compute start of TRB ring for stream "x" */
2470 temp = pepext->physaddr +
2471 (x * XHCI_MAX_TRANSFERS * sizeof(struct xhci_trb)) +
2472 XHCI_SCTX_0_SCT_SEC_TR_RING;
2474 /* make tree structure */
2475 pepext->trb[(XHCI_MAX_TRANSFERS *
2476 XHCI_MAX_STREAMS) + x].qwTrb0 = htole64(temp);
2478 /* reserved fields */
2479 pepext->trb[(XHCI_MAX_TRANSFERS *
2480 XHCI_MAX_STREAMS) + x].dwTrb2 = 0;
2481 pepext->trb[(XHCI_MAX_TRANSFERS *
2482 XHCI_MAX_STREAMS) + x].dwTrb3 = 0;
2484 usb_pc_cpu_flush(pepext->page_cache);
2486 return (xhci_configure_endpoint(xfer->xroot->udev,
2487 xfer->endpoint->edesc, pepext,
2488 xfer->interval, xfer->max_packet_count,
2489 (ecomp != NULL) ? UE_GET_SS_ISO_MULT(ecomp->bmAttributes) + 1 : 1,
2490 usbd_xfer_get_fps_shift(xfer), xfer->max_packet_size,
2491 xfer->max_frame_size, xfer->endpoint->ep_mode));
2495 xhci_configure_device(struct usb_device *udev)
2497 struct xhci_softc *sc = XHCI_BUS2SC(udev->bus);
2498 struct usb_page_search buf_inp;
2499 struct usb_page_cache *pcinp;
2500 struct xhci_input_dev_ctx *pinp;
2501 struct usb_device *hubdev;
2509 index = udev->controller_slot_id;
2511 DPRINTF("index=%u\n", index);
2513 pcinp = &sc->sc_hw.devs[index].input_pc;
2515 usbd_get_page(pcinp, 0, &buf_inp);
2517 pinp = buf_inp.buffer;
2522 /* figure out route string and root HUB port number */
2524 for (hubdev = udev; hubdev != NULL; hubdev = hubdev->parent_hub) {
2526 if (hubdev->parent_hub == NULL)
2529 depth = hubdev->parent_hub->depth;
2532 * NOTE: HS/FS/LS devices and the SS root HUB can have
2533 * more than 15 ports
2536 rh_port = hubdev->port_no;
2545 route |= rh_port << (4 * (depth - 1));
2548 DPRINTF("Route=0x%08x\n", route);
2550 temp = XHCI_SCTX_0_ROUTE_SET(route) |
2551 XHCI_SCTX_0_CTX_NUM_SET(
2552 sc->sc_hw.devs[index].context_num + 1);
2554 switch (udev->speed) {
2556 temp |= XHCI_SCTX_0_SPEED_SET(2);
2557 if (udev->parent_hs_hub != NULL &&
2558 udev->parent_hs_hub->ddesc.bDeviceProtocol ==
2560 DPRINTF("Device inherits MTT\n");
2561 temp |= XHCI_SCTX_0_MTT_SET(1);
2564 case USB_SPEED_HIGH:
2565 temp |= XHCI_SCTX_0_SPEED_SET(3);
2566 if (sc->sc_hw.devs[index].nports != 0 &&
2567 udev->ddesc.bDeviceProtocol == UDPROTO_HSHUBMTT) {
2568 DPRINTF("HUB supports MTT\n");
2569 temp |= XHCI_SCTX_0_MTT_SET(1);
2572 case USB_SPEED_FULL:
2573 temp |= XHCI_SCTX_0_SPEED_SET(1);
2574 if (udev->parent_hs_hub != NULL &&
2575 udev->parent_hs_hub->ddesc.bDeviceProtocol ==
2577 DPRINTF("Device inherits MTT\n");
2578 temp |= XHCI_SCTX_0_MTT_SET(1);
2582 temp |= XHCI_SCTX_0_SPEED_SET(4);
2586 is_hub = sc->sc_hw.devs[index].nports != 0 &&
2587 (udev->speed == USB_SPEED_SUPER ||
2588 udev->speed == USB_SPEED_HIGH);
2591 temp |= XHCI_SCTX_0_HUB_SET(1);
2593 xhci_ctx_set_le32(sc, &pinp->ctx_slot.dwSctx0, temp);
2595 temp = XHCI_SCTX_1_RH_PORT_SET(rh_port);
2598 temp |= XHCI_SCTX_1_NUM_PORTS_SET(
2599 sc->sc_hw.devs[index].nports);
2602 switch (udev->speed) {
2603 case USB_SPEED_SUPER:
2604 switch (sc->sc_hw.devs[index].state) {
2605 case XHCI_ST_ADDRESSED:
2606 case XHCI_ST_CONFIGURED:
2607 /* enable power save */
2608 temp |= XHCI_SCTX_1_MAX_EL_SET(sc->sc_exit_lat_max);
2611 /* disable power save */
2619 xhci_ctx_set_le32(sc, &pinp->ctx_slot.dwSctx1, temp);
2621 temp = XHCI_SCTX_2_IRQ_TARGET_SET(0);
2624 temp |= XHCI_SCTX_2_TT_THINK_TIME_SET(
2625 sc->sc_hw.devs[index].tt);
2628 hubdev = udev->parent_hs_hub;
2630 /* check if we should activate the transaction translator */
2631 switch (udev->speed) {
2632 case USB_SPEED_FULL:
2634 if (hubdev != NULL) {
2635 temp |= XHCI_SCTX_2_TT_HUB_SID_SET(
2636 hubdev->controller_slot_id);
2637 temp |= XHCI_SCTX_2_TT_PORT_NUM_SET(
2645 xhci_ctx_set_le32(sc, &pinp->ctx_slot.dwSctx2, temp);
2648 * These fields should be initialized to zero, according to
2649 * XHCI section 6.2.2 - slot context:
2651 temp = XHCI_SCTX_3_DEV_ADDR_SET(0) |
2652 XHCI_SCTX_3_SLOT_STATE_SET(0);
2654 xhci_ctx_set_le32(sc, &pinp->ctx_slot.dwSctx3, temp);
2657 xhci_dump_device(sc, &pinp->ctx_slot);
2659 usb_pc_cpu_flush(pcinp);
2661 return (0); /* success */
2665 xhci_alloc_device_ext(struct usb_device *udev)
2667 struct xhci_softc *sc = XHCI_BUS2SC(udev->bus);
2668 struct usb_page_search buf_dev;
2669 struct usb_page_search buf_ep;
2670 struct xhci_trb *trb;
2671 struct usb_page_cache *pc;
2672 struct usb_page *pg;
2677 index = udev->controller_slot_id;
2679 pc = &sc->sc_hw.devs[index].device_pc;
2680 pg = &sc->sc_hw.devs[index].device_pg;
2682 /* need to initialize the page cache */
2683 pc->tag_parent = sc->sc_bus.dma_parent_tag;
2685 if (usb_pc_alloc_mem(pc, pg, sc->sc_ctx_is_64_byte ?
2686 (2 * sizeof(struct xhci_dev_ctx)) :
2687 sizeof(struct xhci_dev_ctx), XHCI_PAGE_SIZE))
2690 usbd_get_page(pc, 0, &buf_dev);
2692 pc = &sc->sc_hw.devs[index].input_pc;
2693 pg = &sc->sc_hw.devs[index].input_pg;
2695 /* need to initialize the page cache */
2696 pc->tag_parent = sc->sc_bus.dma_parent_tag;
2698 if (usb_pc_alloc_mem(pc, pg, sc->sc_ctx_is_64_byte ?
2699 (2 * sizeof(struct xhci_input_dev_ctx)) :
2700 sizeof(struct xhci_input_dev_ctx), XHCI_PAGE_SIZE)) {
2704 /* initialise all endpoint LINK TRBs */
2706 for (i = 0; i != XHCI_MAX_ENDPOINTS; i++) {
2708 pc = &sc->sc_hw.devs[index].endpoint_pc[i];
2709 pg = &sc->sc_hw.devs[index].endpoint_pg[i];
2711 /* need to initialize the page cache */
2712 pc->tag_parent = sc->sc_bus.dma_parent_tag;
2714 if (usb_pc_alloc_mem(pc, pg,
2715 sizeof(struct xhci_dev_endpoint_trbs), XHCI_TRB_ALIGN)) {
2719 /* lookup endpoint TRB ring */
2720 usbd_get_page(pc, 0, &buf_ep);
2722 /* get TRB pointer */
2723 trb = buf_ep.buffer;
2724 trb += XHCI_MAX_TRANSFERS - 1;
2726 /* get TRB start address */
2727 addr = buf_ep.physaddr;
2729 /* create LINK TRB */
2730 trb->qwTrb0 = htole64(addr);
2731 trb->dwTrb2 = htole32(XHCI_TRB_2_IRQ_SET(0));
2732 trb->dwTrb3 = htole32(XHCI_TRB_3_CYCLE_BIT |
2733 XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_LINK));
2735 usb_pc_cpu_flush(pc);
2738 xhci_set_slot_pointer(sc, index, buf_dev.physaddr);
2743 xhci_free_device_ext(udev);
2745 return (USB_ERR_NOMEM);
2749 xhci_free_device_ext(struct usb_device *udev)
2751 struct xhci_softc *sc = XHCI_BUS2SC(udev->bus);
2755 index = udev->controller_slot_id;
2756 xhci_set_slot_pointer(sc, index, 0);
2758 usb_pc_free_mem(&sc->sc_hw.devs[index].device_pc);
2759 usb_pc_free_mem(&sc->sc_hw.devs[index].input_pc);
2760 for (i = 0; i != XHCI_MAX_ENDPOINTS; i++)
2761 usb_pc_free_mem(&sc->sc_hw.devs[index].endpoint_pc[i]);
2764 static struct xhci_endpoint_ext *
2765 xhci_get_endpoint_ext(struct usb_device *udev, struct usb_endpoint_descriptor *edesc)
2767 struct xhci_softc *sc = XHCI_BUS2SC(udev->bus);
2768 struct xhci_endpoint_ext *pepext;
2769 struct usb_page_cache *pc;
2770 struct usb_page_search buf_ep;
2774 epno = edesc->bEndpointAddress;
2775 if ((edesc->bmAttributes & UE_XFERTYPE) == UE_CONTROL)
2778 epno = XHCI_EPNO2EPID(epno);
2780 index = udev->controller_slot_id;
2782 pc = &sc->sc_hw.devs[index].endpoint_pc[epno];
2784 usbd_get_page(pc, 0, &buf_ep);
2786 pepext = &sc->sc_hw.devs[index].endp[epno];
2787 pepext->page_cache = pc;
2788 pepext->trb = buf_ep.buffer;
2789 pepext->physaddr = buf_ep.physaddr;
2795 xhci_endpoint_doorbell(struct usb_xfer *xfer)
2797 struct xhci_softc *sc = XHCI_BUS2SC(xfer->xroot->bus);
2801 epno = xfer->endpointno;
2802 if (xfer->flags_int.control_xfr)
2805 epno = XHCI_EPNO2EPID(epno);
2806 index = xfer->xroot->udev->controller_slot_id;
2808 if (xfer->xroot->udev->flags.self_suspended == 0) {
2809 XWRITE4(sc, door, XHCI_DOORBELL(index),
2810 epno | XHCI_DB_SID_SET(xfer->stream_id));
2815 xhci_transfer_remove(struct usb_xfer *xfer, usb_error_t error)
2817 struct xhci_endpoint_ext *pepext;
2819 if (xfer->flags_int.bandwidth_reclaimed) {
2820 xfer->flags_int.bandwidth_reclaimed = 0;
2822 pepext = xhci_get_endpoint_ext(xfer->xroot->udev,
2823 xfer->endpoint->edesc);
2825 pepext->trb_used[xfer->stream_id]--;
2827 pepext->xfer[xfer->qh_pos] = NULL;
2829 if (error && pepext->trb_running != 0) {
2830 pepext->trb_halted = 1;
2831 pepext->trb_running = 0;
2837 xhci_transfer_insert(struct usb_xfer *xfer)
2839 struct xhci_td *td_first;
2840 struct xhci_td *td_last;
2841 struct xhci_trb *trb_link;
2842 struct xhci_endpoint_ext *pepext;
2851 id = xfer->stream_id;
2853 /* check if already inserted */
2854 if (xfer->flags_int.bandwidth_reclaimed) {
2855 DPRINTFN(8, "Already in schedule\n");
2859 pepext = xhci_get_endpoint_ext(xfer->xroot->udev,
2860 xfer->endpoint->edesc);
2862 td_first = xfer->td_transfer_first;
2863 td_last = xfer->td_transfer_last;
2864 addr = pepext->physaddr;
2866 switch (xfer->endpoint->edesc->bmAttributes & UE_XFERTYPE) {
2869 /* single buffered */
2873 /* multi buffered */
2874 trb_limit = (XHCI_MAX_TRANSFERS - 2);
2878 if (pepext->trb_used[id] >= trb_limit) {
2879 DPRINTFN(8, "Too many TDs queued.\n");
2880 return (USB_ERR_NOMEM);
2883 /* check for stopped condition, after putting transfer on interrupt queue */
2884 if (pepext->trb_running == 0) {
2885 struct xhci_softc *sc = XHCI_BUS2SC(xfer->xroot->bus);
2887 DPRINTFN(8, "Not running\n");
2889 /* start configuration */
2890 (void)usb_proc_msignal(USB_BUS_CONTROL_XFER_PROC(&sc->sc_bus),
2891 &sc->sc_config_msg[0], &sc->sc_config_msg[1]);
2895 pepext->trb_used[id]++;
2897 /* get current TRB index */
2898 i = pepext->trb_index[id];
2900 /* get next TRB index */
2903 /* the last entry of the ring is a hardcoded link TRB */
2904 if (inext >= (XHCI_MAX_TRANSFERS - 1))
2907 /* store next TRB index, before stream ID offset is added */
2908 pepext->trb_index[id] = inext;
2910 /* offset for stream */
2911 i += id * XHCI_MAX_TRANSFERS;
2912 inext += id * XHCI_MAX_TRANSFERS;
2914 /* compute terminating return address */
2915 addr += (inext * sizeof(struct xhci_trb));
2917 /* compute link TRB pointer */
2918 trb_link = td_last->td_trb + td_last->ntrb;
2920 /* update next pointer of last link TRB */
2921 trb_link->qwTrb0 = htole64(addr);
2922 trb_link->dwTrb2 = htole32(XHCI_TRB_2_IRQ_SET(0));
2923 trb_link->dwTrb3 = htole32(XHCI_TRB_3_IOC_BIT |
2924 XHCI_TRB_3_CYCLE_BIT |
2925 XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_LINK));
2928 xhci_dump_trb(&td_last->td_trb[td_last->ntrb]);
2930 usb_pc_cpu_flush(td_last->page_cache);
2932 /* write ahead chain end marker */
2934 pepext->trb[inext].qwTrb0 = 0;
2935 pepext->trb[inext].dwTrb2 = 0;
2936 pepext->trb[inext].dwTrb3 = 0;
2938 /* update next pointer of link TRB */
2940 pepext->trb[i].qwTrb0 = htole64((uint64_t)td_first->td_self);
2941 pepext->trb[i].dwTrb2 = htole32(XHCI_TRB_2_IRQ_SET(0));
2944 xhci_dump_trb(&pepext->trb[i]);
2946 usb_pc_cpu_flush(pepext->page_cache);
2948 /* toggle cycle bit which activates the transfer chain */
2950 pepext->trb[i].dwTrb3 = htole32(XHCI_TRB_3_CYCLE_BIT |
2951 XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_LINK));
2953 usb_pc_cpu_flush(pepext->page_cache);
2955 DPRINTF("qh_pos = %u\n", i);
2957 pepext->xfer[i] = xfer;
2961 xfer->flags_int.bandwidth_reclaimed = 1;
2963 xhci_endpoint_doorbell(xfer);
2969 xhci_root_intr(struct xhci_softc *sc)
2973 USB_BUS_LOCK_ASSERT(&sc->sc_bus, MA_OWNED);
2975 /* clear any old interrupt data */
2976 memset(sc->sc_hub_idata, 0, sizeof(sc->sc_hub_idata));
2978 for (i = 1; i <= sc->sc_noport; i++) {
2979 /* pick out CHANGE bits from the status register */
2980 if (XREAD4(sc, oper, XHCI_PORTSC(i)) & (
2981 XHCI_PS_CSC | XHCI_PS_PEC |
2982 XHCI_PS_OCC | XHCI_PS_WRC |
2983 XHCI_PS_PRC | XHCI_PS_PLC |
2985 sc->sc_hub_idata[i / 8] |= 1 << (i % 8);
2986 DPRINTF("port %d changed\n", i);
2989 uhub_root_intr(&sc->sc_bus, sc->sc_hub_idata,
2990 sizeof(sc->sc_hub_idata));
2993 /*------------------------------------------------------------------------*
2994 * xhci_device_done - XHCI done handler
2996 * NOTE: This function can be called two times in a row on
2997 * the same USB transfer. From close and from interrupt.
2998 *------------------------------------------------------------------------*/
3000 xhci_device_done(struct usb_xfer *xfer, usb_error_t error)
3002 DPRINTFN(2, "xfer=%p, endpoint=%p, error=%d\n",
3003 xfer, xfer->endpoint, error);
3005 /* remove transfer from HW queue */
3006 xhci_transfer_remove(xfer, error);
3008 /* dequeue transfer and start next transfer */
3009 usbd_transfer_done(xfer, error);
3012 /*------------------------------------------------------------------------*
3013 * XHCI data transfer support (generic type)
3014 *------------------------------------------------------------------------*/
3016 xhci_device_generic_open(struct usb_xfer *xfer)
3018 if (xfer->flags_int.isochronous_xfr) {
3019 switch (xfer->xroot->udev->speed) {
3020 case USB_SPEED_FULL:
3023 usb_hs_bandwidth_alloc(xfer);
3030 xhci_device_generic_close(struct usb_xfer *xfer)
3034 xhci_device_done(xfer, USB_ERR_CANCELLED);
3036 if (xfer->flags_int.isochronous_xfr) {
3037 switch (xfer->xroot->udev->speed) {
3038 case USB_SPEED_FULL:
3041 usb_hs_bandwidth_free(xfer);
3048 xhci_device_generic_multi_enter(struct usb_endpoint *ep,
3049 usb_stream_t stream_id, struct usb_xfer *enter_xfer)
3051 struct usb_xfer *xfer;
3053 /* check if there is a current transfer */
3054 xfer = ep->endpoint_q[stream_id].curr;
3059 * Check if the current transfer is started and then pickup
3060 * the next one, if any. Else wait for next start event due to
3061 * block on failure feature.
3063 if (!xfer->flags_int.bandwidth_reclaimed)
3066 xfer = TAILQ_FIRST(&ep->endpoint_q[stream_id].head);
3069 * In case of enter we have to consider that the
3070 * transfer is queued by the USB core after the enter
3079 /* try to multi buffer */
3080 xhci_transfer_insert(xfer);
3084 xhci_device_generic_enter(struct usb_xfer *xfer)
3088 /* setup TD's and QH */
3089 xhci_setup_generic_chain(xfer);
3091 xhci_device_generic_multi_enter(xfer->endpoint,
3092 xfer->stream_id, xfer);
3096 xhci_device_generic_start(struct usb_xfer *xfer)
3100 /* try to insert xfer on HW queue */
3101 xhci_transfer_insert(xfer);
3103 /* try to multi buffer */
3104 xhci_device_generic_multi_enter(xfer->endpoint,
3105 xfer->stream_id, NULL);
3107 /* add transfer last on interrupt queue */
3108 usbd_transfer_enqueue(&xfer->xroot->bus->intr_q, xfer);
3110 /* start timeout, if any */
3111 if (xfer->timeout != 0)
3112 usbd_transfer_timeout_ms(xfer, &xhci_timeout, xfer->timeout);
3115 struct usb_pipe_methods xhci_device_generic_methods =
3117 .open = xhci_device_generic_open,
3118 .close = xhci_device_generic_close,
3119 .enter = xhci_device_generic_enter,
3120 .start = xhci_device_generic_start,
3123 /*------------------------------------------------------------------------*
3124 * xhci root HUB support
3125 *------------------------------------------------------------------------*
3126 * Simulate a hardware HUB by handling all the necessary requests.
3127 *------------------------------------------------------------------------*/
3129 #define HSETW(ptr, val) ptr = { (uint8_t)(val), (uint8_t)((val) >> 8) }
3132 struct usb_device_descriptor xhci_devd =
3134 .bLength = sizeof(xhci_devd),
3135 .bDescriptorType = UDESC_DEVICE, /* type */
3136 HSETW(.bcdUSB, 0x0300), /* USB version */
3137 .bDeviceClass = UDCLASS_HUB, /* class */
3138 .bDeviceSubClass = UDSUBCLASS_HUB, /* subclass */
3139 .bDeviceProtocol = UDPROTO_SSHUB, /* protocol */
3140 .bMaxPacketSize = 9, /* max packet size */
3141 HSETW(.idVendor, 0x0000), /* vendor */
3142 HSETW(.idProduct, 0x0000), /* product */
3143 HSETW(.bcdDevice, 0x0100), /* device version */
3147 .bNumConfigurations = 1, /* # of configurations */
3151 struct xhci_bos_desc xhci_bosd = {
3153 .bLength = sizeof(xhci_bosd.bosd),
3154 .bDescriptorType = UDESC_BOS,
3155 HSETW(.wTotalLength, sizeof(xhci_bosd)),
3156 .bNumDeviceCaps = 3,
3159 .bLength = sizeof(xhci_bosd.usb2extd),
3160 .bDescriptorType = 1,
3161 .bDevCapabilityType = 2,
3162 .bmAttributes[0] = 2,
3165 .bLength = sizeof(xhci_bosd.usbdcd),
3166 .bDescriptorType = UDESC_DEVICE_CAPABILITY,
3167 .bDevCapabilityType = 3,
3168 .bmAttributes = 0, /* XXX */
3169 HSETW(.wSpeedsSupported, 0x000C),
3170 .bFunctionalitySupport = 8,
3171 .bU1DevExitLat = 255, /* dummy - not used */
3172 .wU2DevExitLat = { 0x00, 0x08 },
3175 .bLength = sizeof(xhci_bosd.cidd),
3176 .bDescriptorType = 1,
3177 .bDevCapabilityType = 4,
3179 .bContainerID = 0, /* XXX */
3184 struct xhci_config_desc xhci_confd = {
3186 .bLength = sizeof(xhci_confd.confd),
3187 .bDescriptorType = UDESC_CONFIG,
3188 .wTotalLength[0] = sizeof(xhci_confd),
3190 .bConfigurationValue = 1,
3191 .iConfiguration = 0,
3192 .bmAttributes = UC_SELF_POWERED,
3193 .bMaxPower = 0 /* max power */
3196 .bLength = sizeof(xhci_confd.ifcd),
3197 .bDescriptorType = UDESC_INTERFACE,
3199 .bInterfaceClass = UICLASS_HUB,
3200 .bInterfaceSubClass = UISUBCLASS_HUB,
3201 .bInterfaceProtocol = 0,
3204 .bLength = sizeof(xhci_confd.endpd),
3205 .bDescriptorType = UDESC_ENDPOINT,
3206 .bEndpointAddress = UE_DIR_IN | XHCI_INTR_ENDPT,
3207 .bmAttributes = UE_INTERRUPT,
3208 .wMaxPacketSize[0] = 2, /* max 15 ports */
3212 .bLength = sizeof(xhci_confd.endpcd),
3213 .bDescriptorType = UDESC_ENDPOINT_SS_COMP,
3220 struct usb_hub_ss_descriptor xhci_hubd = {
3221 .bLength = sizeof(xhci_hubd),
3222 .bDescriptorType = UDESC_SS_HUB,
3226 xhci_roothub_exec(struct usb_device *udev,
3227 struct usb_device_request *req, const void **pptr, uint16_t *plength)
3229 struct xhci_softc *sc = XHCI_BUS2SC(udev->bus);
3230 const char *str_ptr;
3241 USB_BUS_LOCK_ASSERT(&sc->sc_bus, MA_OWNED);
3244 ptr = (const void *)&sc->sc_hub_desc;
3248 value = UGETW(req->wValue);
3249 index = UGETW(req->wIndex);
3251 DPRINTFN(3, "type=0x%02x request=0x%02x wLen=0x%04x "
3252 "wValue=0x%04x wIndex=0x%04x\n",
3253 req->bmRequestType, req->bRequest,
3254 UGETW(req->wLength), value, index);
3256 #define C(x,y) ((x) | ((y) << 8))
3257 switch (C(req->bRequest, req->bmRequestType)) {
3258 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE):
3259 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE):
3260 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT):
3262 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops
3263 * for the integrated root hub.
3266 case C(UR_GET_CONFIG, UT_READ_DEVICE):
3268 sc->sc_hub_desc.temp[0] = sc->sc_conf;
3270 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE):
3271 switch (value >> 8) {
3273 if ((value & 0xff) != 0) {
3274 err = USB_ERR_IOERROR;
3277 len = sizeof(xhci_devd);
3278 ptr = (const void *)&xhci_devd;
3282 if ((value & 0xff) != 0) {
3283 err = USB_ERR_IOERROR;
3286 len = sizeof(xhci_bosd);
3287 ptr = (const void *)&xhci_bosd;
3291 if ((value & 0xff) != 0) {
3292 err = USB_ERR_IOERROR;
3295 len = sizeof(xhci_confd);
3296 ptr = (const void *)&xhci_confd;
3300 switch (value & 0xff) {
3301 case 0: /* Language table */
3305 case 1: /* Vendor */
3306 str_ptr = sc->sc_vendor;
3309 case 2: /* Product */
3310 str_ptr = "XHCI root HUB";
3318 len = usb_make_str_desc(
3319 sc->sc_hub_desc.temp,
3320 sizeof(sc->sc_hub_desc.temp),
3325 err = USB_ERR_IOERROR;
3329 case C(UR_GET_INTERFACE, UT_READ_INTERFACE):
3331 sc->sc_hub_desc.temp[0] = 0;
3333 case C(UR_GET_STATUS, UT_READ_DEVICE):
3335 USETW(sc->sc_hub_desc.stat.wStatus, UDS_SELF_POWERED);
3337 case C(UR_GET_STATUS, UT_READ_INTERFACE):
3338 case C(UR_GET_STATUS, UT_READ_ENDPOINT):
3340 USETW(sc->sc_hub_desc.stat.wStatus, 0);
3342 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE):
3343 if (value >= XHCI_MAX_DEVICES) {
3344 err = USB_ERR_IOERROR;
3348 case C(UR_SET_CONFIG, UT_WRITE_DEVICE):
3349 if (value != 0 && value != 1) {
3350 err = USB_ERR_IOERROR;
3353 sc->sc_conf = value;
3355 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE):
3357 case C(UR_SET_FEATURE, UT_WRITE_DEVICE):
3358 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE):
3359 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT):
3360 err = USB_ERR_IOERROR;
3362 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE):
3364 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT):
3367 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE):
3369 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER):
3370 DPRINTFN(9, "UR_CLEAR_PORT_FEATURE\n");
3373 (index > sc->sc_noport)) {
3374 err = USB_ERR_IOERROR;
3377 port = XHCI_PORTSC(index);
3379 v = XREAD4(sc, oper, port);
3380 i = XHCI_PS_PLS_GET(v);
3381 v &= ~XHCI_PS_CLEAR;
3384 case UHF_C_BH_PORT_RESET:
3385 XWRITE4(sc, oper, port, v | XHCI_PS_WRC);
3387 case UHF_C_PORT_CONFIG_ERROR:
3388 XWRITE4(sc, oper, port, v | XHCI_PS_CEC);
3390 case UHF_C_PORT_SUSPEND:
3391 case UHF_C_PORT_LINK_STATE:
3392 XWRITE4(sc, oper, port, v | XHCI_PS_PLC);
3394 case UHF_C_PORT_CONNECTION:
3395 XWRITE4(sc, oper, port, v | XHCI_PS_CSC);
3397 case UHF_C_PORT_ENABLE:
3398 XWRITE4(sc, oper, port, v | XHCI_PS_PEC);
3400 case UHF_C_PORT_OVER_CURRENT:
3401 XWRITE4(sc, oper, port, v | XHCI_PS_OCC);
3403 case UHF_C_PORT_RESET:
3404 XWRITE4(sc, oper, port, v | XHCI_PS_PRC);
3406 case UHF_PORT_ENABLE:
3407 XWRITE4(sc, oper, port, v | XHCI_PS_PED);
3409 case UHF_PORT_POWER:
3410 XWRITE4(sc, oper, port, v & ~XHCI_PS_PP);
3412 case UHF_PORT_INDICATOR:
3413 XWRITE4(sc, oper, port, v & ~XHCI_PS_PIC_SET(3));
3415 case UHF_PORT_SUSPEND:
3419 XWRITE4(sc, oper, port, v |
3420 XHCI_PS_PLS_SET(0xF) | XHCI_PS_LWS);
3423 /* wait 20ms for resume sequence to complete */
3424 usb_pause_mtx(&sc->sc_bus.bus_mtx, hz / 50);
3427 XWRITE4(sc, oper, port, v |
3428 XHCI_PS_PLS_SET(0) | XHCI_PS_LWS);
3431 err = USB_ERR_IOERROR;
3436 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE):
3437 if ((value & 0xff) != 0) {
3438 err = USB_ERR_IOERROR;
3442 v = XREAD4(sc, capa, XHCI_HCSPARAMS0);
3444 sc->sc_hub_desc.hubd = xhci_hubd;
3446 sc->sc_hub_desc.hubd.bNbrPorts = sc->sc_noport;
3448 if (XHCI_HCS0_PPC(v))
3449 i = UHD_PWR_INDIVIDUAL;
3453 if (XHCI_HCS0_PIND(v))
3456 i |= UHD_OC_INDIVIDUAL;
3458 USETW(sc->sc_hub_desc.hubd.wHubCharacteristics, i);
3460 /* see XHCI section 5.4.9: */
3461 sc->sc_hub_desc.hubd.bPwrOn2PwrGood = 10;
3463 for (j = 1; j <= sc->sc_noport; j++) {
3465 v = XREAD4(sc, oper, XHCI_PORTSC(j));
3466 if (v & XHCI_PS_DR) {
3467 sc->sc_hub_desc.hubd.
3468 DeviceRemovable[j / 8] |= 1U << (j % 8);
3471 len = sc->sc_hub_desc.hubd.bLength;
3474 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE):
3476 memset(sc->sc_hub_desc.temp, 0, 16);
3479 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER):
3480 DPRINTFN(9, "UR_GET_STATUS i=%d\n", index);
3483 (index > sc->sc_noport)) {
3484 err = USB_ERR_IOERROR;
3488 v = XREAD4(sc, oper, XHCI_PORTSC(index));
3490 DPRINTFN(9, "port status=0x%08x\n", v);
3492 i = UPS_PORT_LINK_STATE_SET(XHCI_PS_PLS_GET(v));
3494 switch (XHCI_PS_SPEED_GET(v)) {
3496 i |= UPS_HIGH_SPEED;
3505 i |= UPS_OTHER_SPEED;
3509 if (v & XHCI_PS_CCS)
3510 i |= UPS_CURRENT_CONNECT_STATUS;
3511 if (v & XHCI_PS_PED)
3512 i |= UPS_PORT_ENABLED;
3513 if (v & XHCI_PS_OCA)
3514 i |= UPS_OVERCURRENT_INDICATOR;
3517 if (v & XHCI_PS_PP) {
3519 * The USB 3.0 RH is using the
3520 * USB 2.0's power bit
3522 i |= UPS_PORT_POWER;
3524 USETW(sc->sc_hub_desc.ps.wPortStatus, i);
3527 if (v & XHCI_PS_CSC)
3528 i |= UPS_C_CONNECT_STATUS;
3529 if (v & XHCI_PS_PEC)
3530 i |= UPS_C_PORT_ENABLED;
3531 if (v & XHCI_PS_OCC)
3532 i |= UPS_C_OVERCURRENT_INDICATOR;
3533 if (v & XHCI_PS_WRC)
3534 i |= UPS_C_BH_PORT_RESET;
3535 if (v & XHCI_PS_PRC)
3536 i |= UPS_C_PORT_RESET;
3537 if (v & XHCI_PS_PLC)
3538 i |= UPS_C_PORT_LINK_STATE;
3539 if (v & XHCI_PS_CEC)
3540 i |= UPS_C_PORT_CONFIG_ERROR;
3542 USETW(sc->sc_hub_desc.ps.wPortChange, i);
3543 len = sizeof(sc->sc_hub_desc.ps);
3546 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE):
3547 err = USB_ERR_IOERROR;
3550 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE):
3553 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER):
3559 (index > sc->sc_noport)) {
3560 err = USB_ERR_IOERROR;
3564 port = XHCI_PORTSC(index);
3565 v = XREAD4(sc, oper, port) & ~XHCI_PS_CLEAR;
3568 case UHF_PORT_U1_TIMEOUT:
3569 if (XHCI_PS_SPEED_GET(v) != 4) {
3570 err = USB_ERR_IOERROR;
3573 port = XHCI_PORTPMSC(index);
3574 v = XREAD4(sc, oper, port);
3575 v &= ~XHCI_PM3_U1TO_SET(0xFF);
3576 v |= XHCI_PM3_U1TO_SET(i);
3577 XWRITE4(sc, oper, port, v);
3579 case UHF_PORT_U2_TIMEOUT:
3580 if (XHCI_PS_SPEED_GET(v) != 4) {
3581 err = USB_ERR_IOERROR;
3584 port = XHCI_PORTPMSC(index);
3585 v = XREAD4(sc, oper, port);
3586 v &= ~XHCI_PM3_U2TO_SET(0xFF);
3587 v |= XHCI_PM3_U2TO_SET(i);
3588 XWRITE4(sc, oper, port, v);
3590 case UHF_BH_PORT_RESET:
3591 XWRITE4(sc, oper, port, v | XHCI_PS_WPR);
3593 case UHF_PORT_LINK_STATE:
3594 XWRITE4(sc, oper, port, v |
3595 XHCI_PS_PLS_SET(i) | XHCI_PS_LWS);
3596 /* 4ms settle time */
3597 usb_pause_mtx(&sc->sc_bus.bus_mtx, hz / 250);
3599 case UHF_PORT_ENABLE:
3600 DPRINTFN(3, "set port enable %d\n", index);
3602 case UHF_PORT_SUSPEND:
3603 DPRINTFN(6, "suspend port %u (LPM=%u)\n", index, i);
3604 j = XHCI_PS_SPEED_GET(v);
3605 if ((j < 1) || (j > 3)) {
3606 /* non-supported speed */
3607 err = USB_ERR_IOERROR;
3610 XWRITE4(sc, oper, port, v |
3611 XHCI_PS_PLS_SET(i ? 2 /* LPM */ : 3) | XHCI_PS_LWS);
3613 case UHF_PORT_RESET:
3614 DPRINTFN(6, "reset port %d\n", index);
3615 XWRITE4(sc, oper, port, v | XHCI_PS_PR);
3617 case UHF_PORT_POWER:
3618 DPRINTFN(3, "set port power %d\n", index);
3619 XWRITE4(sc, oper, port, v | XHCI_PS_PP);
3622 DPRINTFN(3, "set port test %d\n", index);
3624 case UHF_PORT_INDICATOR:
3625 DPRINTFN(3, "set port indicator %d\n", index);
3627 v &= ~XHCI_PS_PIC_SET(3);
3628 v |= XHCI_PS_PIC_SET(1);
3630 XWRITE4(sc, oper, port, v);
3633 err = USB_ERR_IOERROR;
3638 case C(UR_CLEAR_TT_BUFFER, UT_WRITE_CLASS_OTHER):
3639 case C(UR_RESET_TT, UT_WRITE_CLASS_OTHER):
3640 case C(UR_GET_TT_STATE, UT_READ_CLASS_OTHER):
3641 case C(UR_STOP_TT, UT_WRITE_CLASS_OTHER):
3644 err = USB_ERR_IOERROR;
3654 xhci_xfer_setup(struct usb_setup_params *parm)
3656 struct usb_page_search page_info;
3657 struct usb_page_cache *pc;
3658 struct xhci_softc *sc;
3659 struct usb_xfer *xfer;
3664 sc = XHCI_BUS2SC(parm->udev->bus);
3665 xfer = parm->curr_xfer;
3668 * The proof for the "ntd" formula is illustrated like this:
3670 * +------------------------------------+
3674 * | | xxx | x | frm 0 |
3676 * | | xxx | xx | frm 1 |
3679 * +------------------------------------+
3681 * "xxx" means a completely full USB transfer descriptor
3683 * "x" and "xx" means a short USB packet
3685 * For the remainder of an USB transfer modulo
3686 * "max_data_length" we need two USB transfer descriptors.
3687 * One to transfer the remaining data and one to finalise with
3688 * a zero length packet in case the "force_short_xfer" flag is
3689 * set. We only need two USB transfer descriptors in the case
3690 * where the transfer length of the first one is a factor of
3691 * "max_frame_size". The rest of the needed USB transfer
3692 * descriptors is given by the buffer size divided by the
3693 * maximum data payload.
3695 parm->hc_max_packet_size = 0x400;
3696 parm->hc_max_packet_count = 16 * 3;
3697 parm->hc_max_frame_size = XHCI_TD_PAYLOAD_MAX;
3699 xfer->flags_int.bdma_enable = 1;
3701 usbd_transfer_setup_sub(parm);
3703 if (xfer->flags_int.isochronous_xfr) {
3704 ntd = ((1 * xfer->nframes)
3705 + (xfer->max_data_length / xfer->max_hc_frame_size));
3706 } else if (xfer->flags_int.control_xfr) {
3707 ntd = ((2 * xfer->nframes) + 1 /* STATUS */
3708 + (xfer->max_data_length / xfer->max_hc_frame_size));
3710 ntd = ((2 * xfer->nframes)
3711 + (xfer->max_data_length / xfer->max_hc_frame_size));
3720 * Allocate queue heads and transfer descriptors
3724 if (usbd_transfer_setup_sub_malloc(
3725 parm, &pc, sizeof(struct xhci_td),
3726 XHCI_TD_ALIGN, ntd)) {
3727 parm->err = USB_ERR_NOMEM;
3731 for (n = 0; n != ntd; n++) {
3734 usbd_get_page(pc + n, 0, &page_info);
3736 td = page_info.buffer;
3739 td->td_self = page_info.physaddr;
3740 td->obj_next = last_obj;
3741 td->page_cache = pc + n;
3745 usb_pc_cpu_flush(pc + n);
3748 xfer->td_start[xfer->flags_int.curr_dma_set] = last_obj;
3750 if (!xfer->flags_int.curr_dma_set) {
3751 xfer->flags_int.curr_dma_set = 1;
3757 xhci_configure_reset_endpoint(struct usb_xfer *xfer)
3759 struct xhci_softc *sc = XHCI_BUS2SC(xfer->xroot->bus);
3760 struct usb_page_search buf_inp;
3761 struct usb_device *udev;
3762 struct xhci_endpoint_ext *pepext;
3763 struct usb_endpoint_descriptor *edesc;
3764 struct usb_page_cache *pcinp;
3766 usb_stream_t stream_id;
3770 pepext = xhci_get_endpoint_ext(xfer->xroot->udev,
3771 xfer->endpoint->edesc);
3773 udev = xfer->xroot->udev;
3774 index = udev->controller_slot_id;
3776 pcinp = &sc->sc_hw.devs[index].input_pc;
3778 usbd_get_page(pcinp, 0, &buf_inp);
3780 edesc = xfer->endpoint->edesc;
3782 epno = edesc->bEndpointAddress;
3783 stream_id = xfer->stream_id;
3785 if ((edesc->bmAttributes & UE_XFERTYPE) == UE_CONTROL)
3788 epno = XHCI_EPNO2EPID(epno);
3791 return (USB_ERR_NO_PIPE); /* invalid */
3795 /* configure endpoint */
3797 err = xhci_configure_endpoint_by_xfer(xfer);
3800 XHCI_CMD_UNLOCK(sc);
3805 * Get the endpoint into the stopped state according to the
3806 * endpoint context state diagram in the XHCI specification:
3809 err = xhci_cmd_stop_ep(sc, 0, epno, index);
3812 DPRINTF("Could not stop endpoint %u\n", epno);
3814 err = xhci_cmd_reset_ep(sc, 0, epno, index);
3817 DPRINTF("Could not reset endpoint %u\n", epno);
3819 err = xhci_cmd_set_tr_dequeue_ptr(sc,
3820 (pepext->physaddr + (stream_id * sizeof(struct xhci_trb) *
3821 XHCI_MAX_TRANSFERS)) | XHCI_EPCTX_2_DCS_SET(1),
3822 stream_id, epno, index);
3825 DPRINTF("Could not set dequeue ptr for endpoint %u\n", epno);
3828 * Get the endpoint into the running state according to the
3829 * endpoint context state diagram in the XHCI specification:
3832 xhci_configure_mask(udev, (1U << epno) | 1U, 0);
3834 err = xhci_cmd_evaluate_ctx(sc, buf_inp.physaddr, index);
3837 DPRINTF("Could not configure endpoint %u\n", epno);
3839 err = xhci_cmd_configure_ep(sc, buf_inp.physaddr, 0, index);
3842 DPRINTF("Could not configure endpoint %u\n", epno);
3844 XHCI_CMD_UNLOCK(sc);
3850 xhci_xfer_unsetup(struct usb_xfer *xfer)
3856 xhci_start_dma_delay(struct usb_xfer *xfer)
3858 struct xhci_softc *sc = XHCI_BUS2SC(xfer->xroot->bus);
3860 /* put transfer on interrupt queue (again) */
3861 usbd_transfer_enqueue(&sc->sc_bus.intr_q, xfer);
3863 (void)usb_proc_msignal(USB_BUS_CONTROL_XFER_PROC(&sc->sc_bus),
3864 &sc->sc_config_msg[0], &sc->sc_config_msg[1]);
3868 xhci_configure_msg(struct usb_proc_msg *pm)
3870 struct xhci_softc *sc;
3871 struct xhci_endpoint_ext *pepext;
3872 struct usb_xfer *xfer;
3874 sc = XHCI_BUS2SC(((struct usb_bus_msg *)pm)->bus);
3877 TAILQ_FOREACH(xfer, &sc->sc_bus.intr_q.head, wait_entry) {
3879 pepext = xhci_get_endpoint_ext(xfer->xroot->udev,
3880 xfer->endpoint->edesc);
3882 if ((pepext->trb_halted != 0) ||
3883 (pepext->trb_running == 0)) {
3887 /* clear halted and running */
3888 pepext->trb_halted = 0;
3889 pepext->trb_running = 0;
3891 /* nuke remaining buffered transfers */
3893 for (i = 0; i != (XHCI_MAX_TRANSFERS *
3894 XHCI_MAX_STREAMS); i++) {
3896 * NOTE: We need to use the timeout
3897 * error code here else existing
3898 * isochronous clients can get
3901 if (pepext->xfer[i] != NULL) {
3902 xhci_device_done(pepext->xfer[i],
3908 * NOTE: The USB transfer cannot vanish in
3912 USB_BUS_UNLOCK(&sc->sc_bus);
3914 xhci_configure_reset_endpoint(xfer);
3916 USB_BUS_LOCK(&sc->sc_bus);
3918 /* check if halted is still cleared */
3919 if (pepext->trb_halted == 0) {
3920 pepext->trb_running = 1;
3921 memset(pepext->trb_index, 0,
3922 sizeof(pepext->trb_index));
3927 if (xfer->flags_int.did_dma_delay) {
3929 /* remove transfer from interrupt queue (again) */
3930 usbd_transfer_dequeue(xfer);
3932 /* we are finally done */
3933 usb_dma_delay_done_cb(xfer);
3935 /* queue changed - restart */
3940 TAILQ_FOREACH(xfer, &sc->sc_bus.intr_q.head, wait_entry) {
3942 /* try to insert xfer on HW queue */
3943 xhci_transfer_insert(xfer);
3945 /* try to multi buffer */
3946 xhci_device_generic_multi_enter(xfer->endpoint,
3947 xfer->stream_id, NULL);
3952 xhci_ep_init(struct usb_device *udev, struct usb_endpoint_descriptor *edesc,
3953 struct usb_endpoint *ep)
3955 struct xhci_endpoint_ext *pepext;
3957 DPRINTFN(2, "endpoint=%p, addr=%d, endpt=%d, mode=%d\n",
3958 ep, udev->address, edesc->bEndpointAddress, udev->flags.usb_mode);
3960 if (udev->parent_hub == NULL) {
3961 /* root HUB has special endpoint handling */
3965 ep->methods = &xhci_device_generic_methods;
3967 pepext = xhci_get_endpoint_ext(udev, edesc);
3969 USB_BUS_LOCK(udev->bus);
3970 pepext->trb_halted = 1;
3971 pepext->trb_running = 0;
3972 USB_BUS_UNLOCK(udev->bus);
3976 xhci_ep_uninit(struct usb_device *udev, struct usb_endpoint *ep)
3982 xhci_ep_clear_stall(struct usb_device *udev, struct usb_endpoint *ep)
3984 struct xhci_endpoint_ext *pepext;
3988 if (udev->flags.usb_mode != USB_MODE_HOST) {
3992 if (udev->parent_hub == NULL) {
3993 /* root HUB has special endpoint handling */
3997 pepext = xhci_get_endpoint_ext(udev, ep->edesc);
3999 USB_BUS_LOCK(udev->bus);
4000 pepext->trb_halted = 1;
4001 pepext->trb_running = 0;
4002 USB_BUS_UNLOCK(udev->bus);
4006 xhci_device_init(struct usb_device *udev)
4008 struct xhci_softc *sc = XHCI_BUS2SC(udev->bus);
4012 /* no init for root HUB */
4013 if (udev->parent_hub == NULL)
4018 /* set invalid default */
4020 udev->controller_slot_id = sc->sc_noslot + 1;
4022 /* try to get a new slot ID from the XHCI */
4024 err = xhci_cmd_enable_slot(sc, &temp);
4027 XHCI_CMD_UNLOCK(sc);
4031 if (temp > sc->sc_noslot) {
4032 XHCI_CMD_UNLOCK(sc);
4033 return (USB_ERR_BAD_ADDRESS);
4036 if (sc->sc_hw.devs[temp].state != XHCI_ST_DISABLED) {
4037 DPRINTF("slot %u already allocated.\n", temp);
4038 XHCI_CMD_UNLOCK(sc);
4039 return (USB_ERR_BAD_ADDRESS);
4042 /* store slot ID for later reference */
4044 udev->controller_slot_id = temp;
4046 /* reset data structure */
4048 memset(&sc->sc_hw.devs[temp], 0, sizeof(sc->sc_hw.devs[0]));
4050 /* set mark slot allocated */
4052 sc->sc_hw.devs[temp].state = XHCI_ST_ENABLED;
4054 err = xhci_alloc_device_ext(udev);
4056 XHCI_CMD_UNLOCK(sc);
4058 /* get device into default state */
4061 err = xhci_set_address(udev, NULL, 0);
4067 xhci_device_uninit(struct usb_device *udev)
4069 struct xhci_softc *sc = XHCI_BUS2SC(udev->bus);
4072 /* no init for root HUB */
4073 if (udev->parent_hub == NULL)
4078 index = udev->controller_slot_id;
4080 if (index <= sc->sc_noslot) {
4081 xhci_cmd_disable_slot(sc, index);
4082 sc->sc_hw.devs[index].state = XHCI_ST_DISABLED;
4084 /* free device extension */
4085 xhci_free_device_ext(udev);
4088 XHCI_CMD_UNLOCK(sc);
4092 xhci_get_dma_delay(struct usb_device *udev, uint32_t *pus)
4095 * Wait until the hardware has finished any possible use of
4096 * the transfer descriptor(s)
4098 *pus = 2048; /* microseconds */
4102 xhci_device_resume(struct usb_device *udev)
4104 struct xhci_softc *sc = XHCI_BUS2SC(udev->bus);
4111 /* check for root HUB */
4112 if (udev->parent_hub == NULL)
4115 index = udev->controller_slot_id;
4119 /* blindly resume all endpoints */
4121 USB_BUS_LOCK(udev->bus);
4123 for (n = 1; n != XHCI_MAX_ENDPOINTS; n++) {
4124 for (p = 0; p != XHCI_MAX_STREAMS; p++) {
4125 XWRITE4(sc, door, XHCI_DOORBELL(index),
4126 n | XHCI_DB_SID_SET(p));
4130 USB_BUS_UNLOCK(udev->bus);
4132 XHCI_CMD_UNLOCK(sc);
4136 xhci_device_suspend(struct usb_device *udev)
4138 struct xhci_softc *sc = XHCI_BUS2SC(udev->bus);
4145 /* check for root HUB */
4146 if (udev->parent_hub == NULL)
4149 index = udev->controller_slot_id;
4153 /* blindly suspend all endpoints */
4155 for (n = 1; n != XHCI_MAX_ENDPOINTS; n++) {
4156 err = xhci_cmd_stop_ep(sc, 1, n, index);
4158 DPRINTF("Failed to suspend endpoint "
4159 "%u on slot %u (ignored).\n", n, index);
4163 XHCI_CMD_UNLOCK(sc);
4167 xhci_set_hw_power(struct usb_bus *bus)
4173 xhci_device_state_change(struct usb_device *udev)
4175 struct xhci_softc *sc = XHCI_BUS2SC(udev->bus);
4176 struct usb_page_search buf_inp;
4180 /* check for root HUB */
4181 if (udev->parent_hub == NULL)
4184 index = udev->controller_slot_id;
4188 if (usb_get_device_state(udev) == USB_STATE_CONFIGURED) {
4189 err = uhub_query_info(udev, &sc->sc_hw.devs[index].nports,
4190 &sc->sc_hw.devs[index].tt);
4192 sc->sc_hw.devs[index].nports = 0;
4197 switch (usb_get_device_state(udev)) {
4198 case USB_STATE_POWERED:
4199 if (sc->sc_hw.devs[index].state == XHCI_ST_DEFAULT)
4202 /* set default state */
4203 sc->sc_hw.devs[index].state = XHCI_ST_DEFAULT;
4205 /* reset number of contexts */
4206 sc->sc_hw.devs[index].context_num = 0;
4208 err = xhci_cmd_reset_dev(sc, index);
4211 DPRINTF("Device reset failed "
4212 "for slot %u.\n", index);
4216 case USB_STATE_ADDRESSED:
4217 if (sc->sc_hw.devs[index].state == XHCI_ST_ADDRESSED)
4220 sc->sc_hw.devs[index].state = XHCI_ST_ADDRESSED;
4222 err = xhci_cmd_configure_ep(sc, 0, 1, index);
4225 DPRINTF("Failed to deconfigure "
4226 "slot %u.\n", index);
4230 case USB_STATE_CONFIGURED:
4231 if (sc->sc_hw.devs[index].state == XHCI_ST_CONFIGURED)
4234 /* set configured state */
4235 sc->sc_hw.devs[index].state = XHCI_ST_CONFIGURED;
4237 /* reset number of contexts */
4238 sc->sc_hw.devs[index].context_num = 0;
4240 usbd_get_page(&sc->sc_hw.devs[index].input_pc, 0, &buf_inp);
4242 xhci_configure_mask(udev, 3, 0);
4244 err = xhci_configure_device(udev);
4246 DPRINTF("Could not configure device "
4247 "at slot %u.\n", index);
4250 err = xhci_cmd_evaluate_ctx(sc, buf_inp.physaddr, index);
4252 DPRINTF("Could not evaluate device "
4253 "context at slot %u.\n", index);
4260 XHCI_CMD_UNLOCK(sc);
4264 xhci_set_endpoint_mode(struct usb_device *udev, struct usb_endpoint *ep,
4268 case USB_EP_MODE_DEFAULT:
4270 case USB_EP_MODE_STREAMS:
4271 if (xhcistreams == 0 ||
4272 (ep->edesc->bmAttributes & UE_XFERTYPE) != UE_BULK ||
4273 udev->speed != USB_SPEED_SUPER)
4274 return (USB_ERR_INVAL);
4277 return (USB_ERR_INVAL);
4281 struct usb_bus_methods xhci_bus_methods = {
4282 .endpoint_init = xhci_ep_init,
4283 .endpoint_uninit = xhci_ep_uninit,
4284 .xfer_setup = xhci_xfer_setup,
4285 .xfer_unsetup = xhci_xfer_unsetup,
4286 .get_dma_delay = xhci_get_dma_delay,
4287 .device_init = xhci_device_init,
4288 .device_uninit = xhci_device_uninit,
4289 .device_resume = xhci_device_resume,
4290 .device_suspend = xhci_device_suspend,
4291 .set_hw_power = xhci_set_hw_power,
4292 .roothub_exec = xhci_roothub_exec,
4293 .xfer_poll = xhci_do_poll,
4294 .start_dma_delay = xhci_start_dma_delay,
4295 .set_address = xhci_set_address,
4296 .clear_stall = xhci_ep_clear_stall,
4297 .device_state_change = xhci_device_state_change,
4298 .set_hw_power_sleep = xhci_set_hw_power_sleep,
4299 .set_endpoint_mode = xhci_set_endpoint_mode,