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 /* setup command queue mutex and condition varible */
622 cv_init(&sc->sc_cmd_cv, "CMDQ");
623 sx_init(&sc->sc_cmd_sx, "CMDQ lock");
625 /* get all DMA memory */
626 if (usb_bus_mem_alloc_all(&sc->sc_bus,
627 USB_GET_DMA_TAG(self), &xhci_iterate_hw_softc)) {
631 sc->sc_config_msg[0].hdr.pm_callback = &xhci_configure_msg;
632 sc->sc_config_msg[0].bus = &sc->sc_bus;
633 sc->sc_config_msg[1].hdr.pm_callback = &xhci_configure_msg;
634 sc->sc_config_msg[1].bus = &sc->sc_bus;
640 xhci_uninit(struct xhci_softc *sc)
643 * NOTE: At this point the control transfer process is gone
644 * and "xhci_configure_msg" is no longer called. Consequently
645 * waiting for the configuration messages to complete is not
648 usb_bus_mem_free_all(&sc->sc_bus, &xhci_iterate_hw_softc);
650 cv_destroy(&sc->sc_cmd_cv);
651 sx_destroy(&sc->sc_cmd_sx);
655 xhci_set_hw_power_sleep(struct usb_bus *bus, uint32_t state)
657 struct xhci_softc *sc = XHCI_BUS2SC(bus);
660 case USB_HW_POWER_SUSPEND:
661 DPRINTF("Stopping the XHCI\n");
662 xhci_halt_controller(sc);
664 case USB_HW_POWER_SHUTDOWN:
665 DPRINTF("Stopping the XHCI\n");
666 xhci_halt_controller(sc);
668 case USB_HW_POWER_RESUME:
669 DPRINTF("Starting the XHCI\n");
670 xhci_start_controller(sc);
678 xhci_generic_done_sub(struct usb_xfer *xfer)
681 struct xhci_td *td_alt_next;
685 td = xfer->td_transfer_cache;
686 td_alt_next = td->alt_next;
688 if (xfer->aframes != xfer->nframes)
689 usbd_xfer_set_frame_len(xfer, xfer->aframes, 0);
693 usb_pc_cpu_invalidate(td->page_cache);
698 DPRINTFN(4, "xfer=%p[%u/%u] rem=%u/%u status=%u\n",
699 xfer, (unsigned int)xfer->aframes,
700 (unsigned int)xfer->nframes,
701 (unsigned int)len, (unsigned int)td->len,
702 (unsigned int)status);
705 * Verify the status length and
706 * add the length to "frlengths[]":
709 /* should not happen */
710 DPRINTF("Invalid status length, "
711 "0x%04x/0x%04x bytes\n", len, td->len);
712 status = XHCI_TRB_ERROR_LENGTH;
713 } else if (xfer->aframes != xfer->nframes) {
714 xfer->frlengths[xfer->aframes] += td->len - len;
716 /* Check for last transfer */
717 if (((void *)td) == xfer->td_transfer_last) {
721 /* Check for transfer error */
722 if (status != XHCI_TRB_ERROR_SHORT_PKT &&
723 status != XHCI_TRB_ERROR_SUCCESS) {
724 /* the transfer is finished */
728 /* Check for short transfer */
730 if (xfer->flags_int.short_frames_ok ||
731 xfer->flags_int.isochronous_xfr ||
732 xfer->flags_int.control_xfr) {
733 /* follow alt next */
736 /* the transfer is finished */
743 if (td->alt_next != td_alt_next) {
744 /* this USB frame is complete */
749 /* update transfer cache */
751 xfer->td_transfer_cache = td;
753 return ((status == XHCI_TRB_ERROR_STALL) ? USB_ERR_STALLED :
754 (status != XHCI_TRB_ERROR_SHORT_PKT &&
755 status != XHCI_TRB_ERROR_SUCCESS) ? USB_ERR_IOERROR :
756 USB_ERR_NORMAL_COMPLETION);
760 xhci_generic_done(struct usb_xfer *xfer)
764 DPRINTFN(13, "xfer=%p endpoint=%p transfer done\n",
765 xfer, xfer->endpoint);
769 xfer->td_transfer_cache = xfer->td_transfer_first;
771 if (xfer->flags_int.control_xfr) {
773 if (xfer->flags_int.control_hdr)
774 err = xhci_generic_done_sub(xfer);
778 if (xfer->td_transfer_cache == NULL)
782 while (xfer->aframes != xfer->nframes) {
784 err = xhci_generic_done_sub(xfer);
787 if (xfer->td_transfer_cache == NULL)
791 if (xfer->flags_int.control_xfr &&
792 !xfer->flags_int.control_act)
793 err = xhci_generic_done_sub(xfer);
795 /* transfer is complete */
796 xhci_device_done(xfer, err);
800 xhci_activate_transfer(struct usb_xfer *xfer)
804 td = xfer->td_transfer_cache;
806 usb_pc_cpu_invalidate(td->page_cache);
808 if (!(td->td_trb[0].dwTrb3 & htole32(XHCI_TRB_3_CYCLE_BIT))) {
810 /* activate the transfer */
812 td->td_trb[0].dwTrb3 |= htole32(XHCI_TRB_3_CYCLE_BIT);
813 usb_pc_cpu_flush(td->page_cache);
815 xhci_endpoint_doorbell(xfer);
820 xhci_skip_transfer(struct usb_xfer *xfer)
823 struct xhci_td *td_last;
825 td = xfer->td_transfer_cache;
826 td_last = xfer->td_transfer_last;
830 usb_pc_cpu_invalidate(td->page_cache);
832 if (!(td->td_trb[0].dwTrb3 & htole32(XHCI_TRB_3_CYCLE_BIT))) {
834 usb_pc_cpu_invalidate(td_last->page_cache);
836 /* copy LINK TRB to current waiting location */
838 td->td_trb[0].qwTrb0 = td_last->td_trb[td_last->ntrb].qwTrb0;
839 td->td_trb[0].dwTrb2 = td_last->td_trb[td_last->ntrb].dwTrb2;
840 usb_pc_cpu_flush(td->page_cache);
842 td->td_trb[0].dwTrb3 = td_last->td_trb[td_last->ntrb].dwTrb3;
843 usb_pc_cpu_flush(td->page_cache);
845 xhci_endpoint_doorbell(xfer);
849 /*------------------------------------------------------------------------*
850 * xhci_check_transfer
851 *------------------------------------------------------------------------*/
853 xhci_check_transfer(struct xhci_softc *sc, struct xhci_trb *trb)
855 struct xhci_endpoint_ext *pepext;
868 td_event = le64toh(trb->qwTrb0);
869 temp = le32toh(trb->dwTrb2);
871 remainder = XHCI_TRB_2_REM_GET(temp);
872 status = XHCI_TRB_2_ERROR_GET(temp);
873 stream_id = XHCI_TRB_2_STREAM_GET(temp);
875 temp = le32toh(trb->dwTrb3);
876 epno = XHCI_TRB_3_EP_GET(temp);
877 index = XHCI_TRB_3_SLOT_GET(temp);
879 /* check if error means halted */
880 halted = (status != XHCI_TRB_ERROR_SHORT_PKT &&
881 status != XHCI_TRB_ERROR_SUCCESS);
883 DPRINTF("slot=%u epno=%u stream=%u remainder=%u status=%u\n",
884 index, epno, stream_id, remainder, status);
886 if (index > sc->sc_noslot) {
887 DPRINTF("Invalid slot.\n");
891 if ((epno == 0) || (epno >= XHCI_MAX_ENDPOINTS)) {
892 DPRINTF("Invalid endpoint.\n");
896 pepext = &sc->sc_hw.devs[index].endp[epno];
898 if (pepext->trb_ep_mode != USB_EP_MODE_STREAMS) {
900 DPRINTF("stream_id=0\n");
901 } else if (stream_id >= XHCI_MAX_STREAMS) {
902 DPRINTF("Invalid stream ID.\n");
906 /* try to find the USB transfer that generated the event */
907 for (i = 0; i != (XHCI_MAX_TRANSFERS - 1); i++) {
908 struct usb_xfer *xfer;
911 xfer = pepext->xfer[i + (XHCI_MAX_TRANSFERS * stream_id)];
915 td = xfer->td_transfer_cache;
917 DPRINTFN(5, "Checking if 0x%016llx == (0x%016llx .. 0x%016llx)\n",
919 (long long)td->td_self,
920 (long long)td->td_self + sizeof(td->td_trb));
923 * NOTE: Some XHCI implementations might not trigger
924 * an event on the last LINK TRB so we need to
925 * consider both the last and second last event
926 * address as conditions for a successful transfer.
928 * NOTE: We assume that the XHCI will only trigger one
929 * event per chain of TRBs.
932 offset = td_event - td->td_self;
935 offset < (int64_t)sizeof(td->td_trb)) {
937 usb_pc_cpu_invalidate(td->page_cache);
939 /* compute rest of remainder, if any */
940 for (i = (offset / 16) + 1; i < td->ntrb; i++) {
941 temp = le32toh(td->td_trb[i].dwTrb2);
942 remainder += XHCI_TRB_2_BYTES_GET(temp);
945 DPRINTFN(5, "New remainder: %u\n", remainder);
947 /* clear isochronous transfer errors */
948 if (xfer->flags_int.isochronous_xfr) {
951 status = XHCI_TRB_ERROR_SUCCESS;
956 /* "td->remainder" is verified later */
957 td->remainder = remainder;
960 usb_pc_cpu_flush(td->page_cache);
963 * 1) Last transfer descriptor makes the
966 if (((void *)td) == xfer->td_transfer_last) {
967 DPRINTF("TD is last\n");
968 xhci_generic_done(xfer);
973 * 2) Any kind of error makes the transfer
977 DPRINTF("TD has I/O error\n");
978 xhci_generic_done(xfer);
983 * 3) If there is no alternate next transfer,
984 * a short packet also makes the transfer done
986 if (td->remainder > 0) {
987 if (td->alt_next == NULL) {
989 "short TD has no alternate next\n");
990 xhci_generic_done(xfer);
993 DPRINTF("TD has short pkt\n");
994 if (xfer->flags_int.short_frames_ok ||
995 xfer->flags_int.isochronous_xfr ||
996 xfer->flags_int.control_xfr) {
997 /* follow the alt next */
998 xfer->td_transfer_cache = td->alt_next;
999 xhci_activate_transfer(xfer);
1002 xhci_skip_transfer(xfer);
1003 xhci_generic_done(xfer);
1008 * 4) Transfer complete - go to next TD
1010 DPRINTF("Following next TD\n");
1011 xfer->td_transfer_cache = td->obj_next;
1012 xhci_activate_transfer(xfer);
1013 break; /* there should only be one match */
1019 xhci_check_command(struct xhci_softc *sc, struct xhci_trb *trb)
1021 if (sc->sc_cmd_addr == trb->qwTrb0) {
1022 DPRINTF("Received command event\n");
1023 sc->sc_cmd_result[0] = trb->dwTrb2;
1024 sc->sc_cmd_result[1] = trb->dwTrb3;
1025 cv_signal(&sc->sc_cmd_cv);
1026 return (1); /* command match */
1032 xhci_interrupt_poll(struct xhci_softc *sc)
1034 struct usb_page_search buf_res;
1035 struct xhci_hw_root *phwr;
1045 usbd_get_page(&sc->sc_hw.root_pc, 0, &buf_res);
1047 phwr = buf_res.buffer;
1049 /* Receive any events */
1051 usb_pc_cpu_invalidate(&sc->sc_hw.root_pc);
1053 i = sc->sc_event_idx;
1054 j = sc->sc_event_ccs;
1059 temp = le32toh(phwr->hwr_events[i].dwTrb3);
1061 k = (temp & XHCI_TRB_3_CYCLE_BIT) ? 1 : 0;
1066 event = XHCI_TRB_3_TYPE_GET(temp);
1068 DPRINTFN(10, "event[%u] = %u (0x%016llx 0x%08lx 0x%08lx)\n",
1069 i, event, (long long)le64toh(phwr->hwr_events[i].qwTrb0),
1070 (long)le32toh(phwr->hwr_events[i].dwTrb2),
1071 (long)le32toh(phwr->hwr_events[i].dwTrb3));
1074 case XHCI_TRB_EVENT_TRANSFER:
1075 xhci_check_transfer(sc, &phwr->hwr_events[i]);
1077 case XHCI_TRB_EVENT_CMD_COMPLETE:
1078 retval |= xhci_check_command(sc, &phwr->hwr_events[i]);
1081 DPRINTF("Unhandled event = %u\n", event);
1087 if (i == XHCI_MAX_EVENTS) {
1091 /* check for timeout */
1097 sc->sc_event_idx = i;
1098 sc->sc_event_ccs = j;
1101 * NOTE: The Event Ring Dequeue Pointer Register is 64-bit
1102 * latched. That means to activate the register we need to
1103 * write both the low and high double word of the 64-bit
1107 addr = (uint32_t)buf_res.physaddr;
1108 addr += (uintptr_t)&((struct xhci_hw_root *)0)->hwr_events[i];
1110 /* try to clear busy bit */
1111 addr |= XHCI_ERDP_LO_BUSY;
1113 XWRITE4(sc, runt, XHCI_ERDP_LO(0), (uint32_t)addr);
1114 XWRITE4(sc, runt, XHCI_ERDP_HI(0), (uint32_t)(addr >> 32));
1120 xhci_do_command(struct xhci_softc *sc, struct xhci_trb *trb,
1121 uint16_t timeout_ms)
1123 struct usb_page_search buf_res;
1124 struct xhci_hw_root *phwr;
1129 uint8_t timeout = 0;
1132 XHCI_CMD_ASSERT_LOCKED(sc);
1134 /* get hardware root structure */
1136 usbd_get_page(&sc->sc_hw.root_pc, 0, &buf_res);
1138 phwr = buf_res.buffer;
1142 USB_BUS_LOCK(&sc->sc_bus);
1144 i = sc->sc_command_idx;
1145 j = sc->sc_command_ccs;
1147 DPRINTFN(10, "command[%u] = %u (0x%016llx, 0x%08lx, 0x%08lx)\n",
1148 i, XHCI_TRB_3_TYPE_GET(le32toh(trb->dwTrb3)),
1149 (long long)le64toh(trb->qwTrb0),
1150 (long)le32toh(trb->dwTrb2),
1151 (long)le32toh(trb->dwTrb3));
1153 phwr->hwr_commands[i].qwTrb0 = trb->qwTrb0;
1154 phwr->hwr_commands[i].dwTrb2 = trb->dwTrb2;
1156 usb_pc_cpu_flush(&sc->sc_hw.root_pc);
1161 temp |= htole32(XHCI_TRB_3_CYCLE_BIT);
1163 temp &= ~htole32(XHCI_TRB_3_CYCLE_BIT);
1165 temp &= ~htole32(XHCI_TRB_3_TC_BIT);
1167 phwr->hwr_commands[i].dwTrb3 = temp;
1169 usb_pc_cpu_flush(&sc->sc_hw.root_pc);
1171 addr = buf_res.physaddr;
1172 addr += (uintptr_t)&((struct xhci_hw_root *)0)->hwr_commands[i];
1174 sc->sc_cmd_addr = htole64(addr);
1178 if (i == (XHCI_MAX_COMMANDS - 1)) {
1181 temp = htole32(XHCI_TRB_3_TC_BIT |
1182 XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_LINK) |
1183 XHCI_TRB_3_CYCLE_BIT);
1185 temp = htole32(XHCI_TRB_3_TC_BIT |
1186 XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_LINK));
1189 phwr->hwr_commands[i].dwTrb3 = temp;
1191 usb_pc_cpu_flush(&sc->sc_hw.root_pc);
1197 sc->sc_command_idx = i;
1198 sc->sc_command_ccs = j;
1200 XWRITE4(sc, door, XHCI_DOORBELL(0), 0);
1202 err = cv_timedwait(&sc->sc_cmd_cv, &sc->sc_bus.bus_mtx,
1203 USB_MS_TO_TICKS(timeout_ms));
1206 * In some error cases event interrupts are not generated.
1207 * Poll one time to see if the command has completed.
1209 if (err != 0 && xhci_interrupt_poll(sc) != 0) {
1210 DPRINTF("Command was completed when polling\n");
1214 DPRINTF("Command timeout!\n");
1216 * After some weeks of continuous operation, it has
1217 * been observed that the ASMedia Technology, ASM1042
1218 * SuperSpeed USB Host Controller can suddenly stop
1219 * accepting commands via the command queue. Try to
1220 * first reset the command queue. If that fails do a
1221 * host controller reset.
1224 xhci_reset_command_queue_locked(sc) == 0) {
1225 temp = le32toh(trb->dwTrb3);
1228 * Avoid infinite XHCI reset loops if the set
1229 * address command fails to respond due to a
1230 * non-enumerating device:
1232 if (XHCI_TRB_3_TYPE_GET(temp) == XHCI_TRB_TYPE_ADDRESS_DEVICE &&
1233 (temp & XHCI_TRB_3_BSR_BIT) == 0) {
1234 DPRINTF("Set address timeout\n");
1240 DPRINTF("Controller reset!\n");
1241 usb_bus_reset_async_locked(&sc->sc_bus);
1243 err = USB_ERR_TIMEOUT;
1247 temp = le32toh(sc->sc_cmd_result[0]);
1248 if (XHCI_TRB_2_ERROR_GET(temp) != XHCI_TRB_ERROR_SUCCESS)
1249 err = USB_ERR_IOERROR;
1251 trb->dwTrb2 = sc->sc_cmd_result[0];
1252 trb->dwTrb3 = sc->sc_cmd_result[1];
1255 USB_BUS_UNLOCK(&sc->sc_bus);
1262 xhci_cmd_nop(struct xhci_softc *sc)
1264 struct xhci_trb trb;
1271 temp = XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_NOOP);
1273 trb.dwTrb3 = htole32(temp);
1275 return (xhci_do_command(sc, &trb, 100 /* ms */));
1280 xhci_cmd_enable_slot(struct xhci_softc *sc, uint8_t *pslot)
1282 struct xhci_trb trb;
1290 trb.dwTrb3 = htole32(XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_ENABLE_SLOT));
1292 err = xhci_do_command(sc, &trb, 100 /* ms */);
1296 temp = le32toh(trb.dwTrb3);
1298 *pslot = XHCI_TRB_3_SLOT_GET(temp);
1305 xhci_cmd_disable_slot(struct xhci_softc *sc, uint8_t slot_id)
1307 struct xhci_trb trb;
1314 temp = XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_DISABLE_SLOT) |
1315 XHCI_TRB_3_SLOT_SET(slot_id);
1317 trb.dwTrb3 = htole32(temp);
1319 return (xhci_do_command(sc, &trb, 100 /* ms */));
1323 xhci_cmd_set_address(struct xhci_softc *sc, uint64_t input_ctx,
1324 uint8_t bsr, uint8_t slot_id)
1326 struct xhci_trb trb;
1331 trb.qwTrb0 = htole64(input_ctx);
1333 temp = XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_ADDRESS_DEVICE) |
1334 XHCI_TRB_3_SLOT_SET(slot_id);
1337 temp |= XHCI_TRB_3_BSR_BIT;
1339 trb.dwTrb3 = htole32(temp);
1341 return (xhci_do_command(sc, &trb, 500 /* ms */));
1345 xhci_set_address(struct usb_device *udev, struct mtx *mtx, uint16_t address)
1347 struct usb_page_search buf_inp;
1348 struct usb_page_search buf_dev;
1349 struct xhci_softc *sc = XHCI_BUS2SC(udev->bus);
1350 struct xhci_hw_dev *hdev;
1351 struct xhci_dev_ctx *pdev;
1352 struct xhci_endpoint_ext *pepext;
1358 /* the root HUB case is not handled here */
1359 if (udev->parent_hub == NULL)
1360 return (USB_ERR_INVAL);
1362 index = udev->controller_slot_id;
1364 hdev = &sc->sc_hw.devs[index];
1371 switch (hdev->state) {
1372 case XHCI_ST_DEFAULT:
1373 case XHCI_ST_ENABLED:
1375 hdev->state = XHCI_ST_ENABLED;
1377 /* set configure mask to slot and EP0 */
1378 xhci_configure_mask(udev, 3, 0);
1380 /* configure input slot context structure */
1381 err = xhci_configure_device(udev);
1384 DPRINTF("Could not configure device\n");
1388 /* configure input endpoint context structure */
1389 switch (udev->speed) {
1391 case USB_SPEED_FULL:
1394 case USB_SPEED_HIGH:
1402 pepext = xhci_get_endpoint_ext(udev,
1403 &udev->ctrl_ep_desc);
1404 err = xhci_configure_endpoint(udev,
1405 &udev->ctrl_ep_desc, pepext,
1406 0, 1, 1, 0, mps, mps, USB_EP_MODE_DEFAULT);
1409 DPRINTF("Could not configure default endpoint\n");
1413 /* execute set address command */
1414 usbd_get_page(&hdev->input_pc, 0, &buf_inp);
1416 err = xhci_cmd_set_address(sc, buf_inp.physaddr,
1417 (address == 0), index);
1420 temp = le32toh(sc->sc_cmd_result[0]);
1421 if (address == 0 && sc->sc_port_route != NULL &&
1422 XHCI_TRB_2_ERROR_GET(temp) ==
1423 XHCI_TRB_ERROR_PARAMETER) {
1424 /* LynxPoint XHCI - ports are not switchable */
1425 /* Un-route all ports from the XHCI */
1426 sc->sc_port_route(sc->sc_bus.parent, 0, ~0);
1428 DPRINTF("Could not set address "
1429 "for slot %u.\n", index);
1434 /* update device address to new value */
1436 usbd_get_page(&hdev->device_pc, 0, &buf_dev);
1437 pdev = buf_dev.buffer;
1438 usb_pc_cpu_invalidate(&hdev->device_pc);
1440 temp = xhci_ctx_get_le32(sc, &pdev->ctx_slot.dwSctx3);
1441 udev->address = XHCI_SCTX_3_DEV_ADDR_GET(temp);
1443 /* update device state to new value */
1446 hdev->state = XHCI_ST_ADDRESSED;
1448 hdev->state = XHCI_ST_DEFAULT;
1452 DPRINTF("Wrong state for set address.\n");
1453 err = USB_ERR_IOERROR;
1456 XHCI_CMD_UNLOCK(sc);
1465 xhci_cmd_configure_ep(struct xhci_softc *sc, uint64_t input_ctx,
1466 uint8_t deconfigure, uint8_t slot_id)
1468 struct xhci_trb trb;
1473 trb.qwTrb0 = htole64(input_ctx);
1475 temp = XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_CONFIGURE_EP) |
1476 XHCI_TRB_3_SLOT_SET(slot_id);
1479 temp |= XHCI_TRB_3_DCEP_BIT;
1481 trb.dwTrb3 = htole32(temp);
1483 return (xhci_do_command(sc, &trb, 100 /* ms */));
1487 xhci_cmd_evaluate_ctx(struct xhci_softc *sc, uint64_t input_ctx,
1490 struct xhci_trb trb;
1495 trb.qwTrb0 = htole64(input_ctx);
1497 temp = XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_EVALUATE_CTX) |
1498 XHCI_TRB_3_SLOT_SET(slot_id);
1499 trb.dwTrb3 = htole32(temp);
1501 return (xhci_do_command(sc, &trb, 100 /* ms */));
1505 xhci_cmd_reset_ep(struct xhci_softc *sc, uint8_t preserve,
1506 uint8_t ep_id, uint8_t slot_id)
1508 struct xhci_trb trb;
1515 temp = XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_RESET_EP) |
1516 XHCI_TRB_3_SLOT_SET(slot_id) |
1517 XHCI_TRB_3_EP_SET(ep_id);
1520 temp |= XHCI_TRB_3_PRSV_BIT;
1522 trb.dwTrb3 = htole32(temp);
1524 return (xhci_do_command(sc, &trb, 100 /* ms */));
1528 xhci_cmd_set_tr_dequeue_ptr(struct xhci_softc *sc, uint64_t dequeue_ptr,
1529 uint16_t stream_id, uint8_t ep_id, uint8_t slot_id)
1531 struct xhci_trb trb;
1536 trb.qwTrb0 = htole64(dequeue_ptr);
1538 temp = XHCI_TRB_2_STREAM_SET(stream_id);
1539 trb.dwTrb2 = htole32(temp);
1541 temp = XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_SET_TR_DEQUEUE) |
1542 XHCI_TRB_3_SLOT_SET(slot_id) |
1543 XHCI_TRB_3_EP_SET(ep_id);
1544 trb.dwTrb3 = htole32(temp);
1546 return (xhci_do_command(sc, &trb, 100 /* ms */));
1550 xhci_cmd_stop_ep(struct xhci_softc *sc, uint8_t suspend,
1551 uint8_t ep_id, uint8_t slot_id)
1553 struct xhci_trb trb;
1560 temp = XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_STOP_EP) |
1561 XHCI_TRB_3_SLOT_SET(slot_id) |
1562 XHCI_TRB_3_EP_SET(ep_id);
1565 temp |= XHCI_TRB_3_SUSP_EP_BIT;
1567 trb.dwTrb3 = htole32(temp);
1569 return (xhci_do_command(sc, &trb, 100 /* ms */));
1573 xhci_cmd_reset_dev(struct xhci_softc *sc, uint8_t slot_id)
1575 struct xhci_trb trb;
1582 temp = XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_RESET_DEVICE) |
1583 XHCI_TRB_3_SLOT_SET(slot_id);
1585 trb.dwTrb3 = htole32(temp);
1587 return (xhci_do_command(sc, &trb, 100 /* ms */));
1590 /*------------------------------------------------------------------------*
1591 * xhci_interrupt - XHCI interrupt handler
1592 *------------------------------------------------------------------------*/
1594 xhci_interrupt(struct xhci_softc *sc)
1599 USB_BUS_LOCK(&sc->sc_bus);
1601 status = XREAD4(sc, oper, XHCI_USBSTS);
1603 /* acknowledge interrupts, if any */
1605 XWRITE4(sc, oper, XHCI_USBSTS, status);
1606 DPRINTFN(16, "real interrupt (status=0x%08x)\n", status);
1609 temp = XREAD4(sc, runt, XHCI_IMAN(0));
1611 /* force clearing of pending interrupts */
1612 if (temp & XHCI_IMAN_INTR_PEND)
1613 XWRITE4(sc, runt, XHCI_IMAN(0), temp);
1615 /* check for event(s) */
1616 xhci_interrupt_poll(sc);
1618 if (status & (XHCI_STS_PCD | XHCI_STS_HCH |
1619 XHCI_STS_HSE | XHCI_STS_HCE)) {
1621 if (status & XHCI_STS_PCD) {
1625 if (status & XHCI_STS_HCH) {
1626 printf("%s: host controller halted\n",
1630 if (status & XHCI_STS_HSE) {
1631 printf("%s: host system error\n",
1635 if (status & XHCI_STS_HCE) {
1636 printf("%s: host controller error\n",
1640 USB_BUS_UNLOCK(&sc->sc_bus);
1643 /*------------------------------------------------------------------------*
1644 * xhci_timeout - XHCI timeout handler
1645 *------------------------------------------------------------------------*/
1647 xhci_timeout(void *arg)
1649 struct usb_xfer *xfer = arg;
1651 DPRINTF("xfer=%p\n", xfer);
1653 USB_BUS_LOCK_ASSERT(xfer->xroot->bus, MA_OWNED);
1655 /* transfer is transferred */
1656 xhci_device_done(xfer, USB_ERR_TIMEOUT);
1660 xhci_do_poll(struct usb_bus *bus)
1662 struct xhci_softc *sc = XHCI_BUS2SC(bus);
1664 USB_BUS_LOCK(&sc->sc_bus);
1665 xhci_interrupt_poll(sc);
1666 USB_BUS_UNLOCK(&sc->sc_bus);
1670 xhci_setup_generic_chain_sub(struct xhci_std_temp *temp)
1672 struct usb_page_search buf_res;
1674 struct xhci_td *td_next;
1675 struct xhci_td *td_alt_next;
1676 struct xhci_td *td_first;
1677 uint32_t buf_offset;
1682 uint8_t shortpkt_old;
1688 shortpkt_old = temp->shortpkt;
1689 len_old = temp->len;
1696 td_next = td_first = temp->td_next;
1700 if (temp->len == 0) {
1705 /* send a Zero Length Packet, ZLP, last */
1712 average = temp->average;
1714 if (temp->len < average) {
1715 if (temp->len % temp->max_packet_size) {
1718 average = temp->len;
1722 if (td_next == NULL)
1723 panic("%s: out of XHCI transfer descriptors!", __FUNCTION__);
1728 td_next = td->obj_next;
1730 /* check if we are pre-computing */
1734 /* update remaining length */
1736 temp->len -= average;
1740 /* fill out current TD */
1746 /* update remaining length */
1748 temp->len -= average;
1750 /* reset TRB index */
1754 if (temp->trb_type == XHCI_TRB_TYPE_SETUP_STAGE) {
1755 /* immediate data */
1760 td->td_trb[0].qwTrb0 = 0;
1762 usbd_copy_out(temp->pc, temp->offset + buf_offset,
1763 (uint8_t *)(uintptr_t)&td->td_trb[0].qwTrb0,
1766 dword = XHCI_TRB_2_BYTES_SET(8) |
1767 XHCI_TRB_2_TDSZ_SET(0) |
1768 XHCI_TRB_2_IRQ_SET(0);
1770 td->td_trb[0].dwTrb2 = htole32(dword);
1772 dword = XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_SETUP_STAGE) |
1773 XHCI_TRB_3_IDT_BIT | XHCI_TRB_3_CYCLE_BIT;
1776 if (td->td_trb[0].qwTrb0 &
1777 htole64(XHCI_TRB_0_WLENGTH_MASK)) {
1778 if (td->td_trb[0].qwTrb0 &
1779 htole64(XHCI_TRB_0_DIR_IN_MASK))
1780 dword |= XHCI_TRB_3_TRT_IN;
1782 dword |= XHCI_TRB_3_TRT_OUT;
1785 td->td_trb[0].dwTrb3 = htole32(dword);
1787 xhci_dump_trb(&td->td_trb[x]);
1795 /* fill out buffer pointers */
1798 memset(&buf_res, 0, sizeof(buf_res));
1800 usbd_get_page(temp->pc, temp->offset +
1801 buf_offset, &buf_res);
1803 /* get length to end of page */
1804 if (buf_res.length > average)
1805 buf_res.length = average;
1807 /* check for maximum length */
1808 if (buf_res.length > XHCI_TD_PAGE_SIZE)
1809 buf_res.length = XHCI_TD_PAGE_SIZE;
1811 npkt_off += buf_res.length;
1815 npkt = (len_old - npkt_off + temp->max_packet_size - 1) /
1816 temp->max_packet_size;
1823 /* fill out TRB's */
1824 td->td_trb[x].qwTrb0 =
1825 htole64((uint64_t)buf_res.physaddr);
1828 XHCI_TRB_2_BYTES_SET(buf_res.length) |
1829 XHCI_TRB_2_TDSZ_SET(npkt) |
1830 XHCI_TRB_2_IRQ_SET(0);
1832 td->td_trb[x].dwTrb2 = htole32(dword);
1834 switch (temp->trb_type) {
1835 case XHCI_TRB_TYPE_ISOCH:
1836 dword = XHCI_TRB_3_CHAIN_BIT | XHCI_TRB_3_CYCLE_BIT |
1837 XHCI_TRB_3_TBC_SET(temp->tbc) |
1838 XHCI_TRB_3_TLBPC_SET(temp->tlbpc);
1839 if (td != td_first) {
1840 dword |= XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_NORMAL);
1841 } else if (temp->do_isoc_sync != 0) {
1842 temp->do_isoc_sync = 0;
1843 /* wait until "isoc_frame" */
1844 dword |= XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_ISOCH) |
1845 XHCI_TRB_3_FRID_SET(temp->isoc_frame / 8);
1847 /* start data transfer at next interval */
1848 dword |= XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_ISOCH) |
1849 XHCI_TRB_3_ISO_SIA_BIT;
1851 if (temp->direction == UE_DIR_IN)
1852 dword |= XHCI_TRB_3_DIR_IN | XHCI_TRB_3_ISP_BIT;
1854 case XHCI_TRB_TYPE_DATA_STAGE:
1855 dword = XHCI_TRB_3_CHAIN_BIT | XHCI_TRB_3_CYCLE_BIT |
1856 XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_DATA_STAGE) |
1857 XHCI_TRB_3_TBC_SET(temp->tbc) |
1858 XHCI_TRB_3_TLBPC_SET(temp->tlbpc);
1859 if (temp->direction == UE_DIR_IN)
1860 dword |= XHCI_TRB_3_DIR_IN | XHCI_TRB_3_ISP_BIT;
1862 case XHCI_TRB_TYPE_STATUS_STAGE:
1863 dword = XHCI_TRB_3_CHAIN_BIT | XHCI_TRB_3_CYCLE_BIT |
1864 XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_STATUS_STAGE) |
1865 XHCI_TRB_3_TBC_SET(temp->tbc) |
1866 XHCI_TRB_3_TLBPC_SET(temp->tlbpc);
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 XHCI_TRB_3_TBC_SET(temp->tbc) |
1874 XHCI_TRB_3_TLBPC_SET(temp->tlbpc);
1875 if (temp->direction == UE_DIR_IN)
1876 dword |= XHCI_TRB_3_DIR_IN | XHCI_TRB_3_ISP_BIT;
1879 td->td_trb[x].dwTrb3 = htole32(dword);
1881 average -= buf_res.length;
1882 buf_offset += buf_res.length;
1884 xhci_dump_trb(&td->td_trb[x]);
1888 } while (average != 0);
1890 td->td_trb[x-1].dwTrb3 |= htole32(XHCI_TRB_3_IOC_BIT);
1892 /* store number of data TRB's */
1896 DPRINTF("NTRB=%u\n", x);
1898 /* fill out link TRB */
1900 if (td_next != NULL) {
1901 /* link the current TD with the next one */
1902 td->td_trb[x].qwTrb0 = htole64((uint64_t)td_next->td_self);
1903 DPRINTF("LINK=0x%08llx\n", (long long)td_next->td_self);
1905 /* this field will get updated later */
1906 DPRINTF("NOLINK\n");
1909 dword = XHCI_TRB_2_IRQ_SET(0);
1911 td->td_trb[x].dwTrb2 = htole32(dword);
1913 dword = XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_LINK) |
1914 XHCI_TRB_3_CYCLE_BIT | XHCI_TRB_3_IOC_BIT |
1916 * CHAIN-BIT: Ensure that a multi-TRB IN-endpoint
1917 * frame only receives a single short packet event
1918 * by setting the CHAIN bit in the LINK field. In
1919 * addition some XHCI controllers have problems
1920 * sending a ZLP unless the CHAIN-BIT is set in
1923 XHCI_TRB_3_CHAIN_BIT;
1925 td->td_trb[x].dwTrb3 = htole32(dword);
1927 td->alt_next = td_alt_next;
1929 xhci_dump_trb(&td->td_trb[x]);
1931 usb_pc_cpu_flush(td->page_cache);
1937 /* setup alt next pointer, if any */
1938 if (temp->last_frame) {
1941 /* we use this field internally */
1942 td_alt_next = td_next;
1946 temp->shortpkt = shortpkt_old;
1947 temp->len = len_old;
1952 * Remove cycle bit from the first TRB if we are
1955 if (temp->step_td != 0) {
1956 td_first->td_trb[0].dwTrb3 &= ~htole32(XHCI_TRB_3_CYCLE_BIT);
1957 usb_pc_cpu_flush(td_first->page_cache);
1960 /* clear TD SIZE to zero, hence this is the last TRB */
1961 /* remove chain bit because this is the last data TRB in the chain */
1962 td->td_trb[td->ntrb - 1].dwTrb2 &= ~htole32(XHCI_TRB_2_TDSZ_SET(15));
1963 td->td_trb[td->ntrb - 1].dwTrb3 &= ~htole32(XHCI_TRB_3_CHAIN_BIT);
1964 /* remove CHAIN-BIT from last LINK TRB */
1965 td->td_trb[td->ntrb].dwTrb3 &= ~htole32(XHCI_TRB_3_CHAIN_BIT);
1967 usb_pc_cpu_flush(td->page_cache);
1970 temp->td_next = td_next;
1974 xhci_setup_generic_chain(struct usb_xfer *xfer)
1976 struct xhci_std_temp temp;
1982 temp.do_isoc_sync = 0;
1986 temp.average = xfer->max_hc_frame_size;
1987 temp.max_packet_size = xfer->max_packet_size;
1988 temp.sc = XHCI_BUS2SC(xfer->xroot->bus);
1990 temp.last_frame = 0;
1992 temp.multishort = xfer->flags_int.isochronous_xfr ||
1993 xfer->flags_int.control_xfr ||
1994 xfer->flags_int.short_frames_ok;
1996 /* toggle the DMA set we are using */
1997 xfer->flags_int.curr_dma_set ^= 1;
1999 /* get next DMA set */
2000 td = xfer->td_start[xfer->flags_int.curr_dma_set];
2005 xfer->td_transfer_first = td;
2006 xfer->td_transfer_cache = td;
2008 if (xfer->flags_int.isochronous_xfr) {
2011 /* compute multiplier for ISOCHRONOUS transfers */
2012 mult = xfer->endpoint->ecomp ?
2013 UE_GET_SS_ISO_MULT(xfer->endpoint->ecomp->bmAttributes)
2015 /* check for USB 2.0 multiplier */
2017 mult = (xfer->endpoint->edesc->
2018 wMaxPacketSize[1] >> 3) & 3;
2026 x = XREAD4(temp.sc, runt, XHCI_MFINDEX);
2028 DPRINTF("MFINDEX=0x%08x\n", x);
2030 switch (usbd_get_speed(xfer->xroot->udev)) {
2031 case USB_SPEED_FULL:
2033 temp.isoc_delta = 8; /* 1ms */
2034 x += temp.isoc_delta - 1;
2035 x &= ~(temp.isoc_delta - 1);
2038 shift = usbd_xfer_get_fps_shift(xfer);
2039 temp.isoc_delta = 1U << shift;
2040 x += temp.isoc_delta - 1;
2041 x &= ~(temp.isoc_delta - 1);
2042 /* simple frame load balancing */
2043 x += xfer->endpoint->usb_uframe;
2047 y = XHCI_MFINDEX_GET(x - xfer->endpoint->isoc_next);
2049 if ((xfer->endpoint->is_synced == 0) ||
2050 (y < (xfer->nframes << shift)) ||
2051 (XHCI_MFINDEX_GET(-y) >= (128 * 8))) {
2053 * If there is data underflow or the pipe
2054 * queue is empty we schedule the transfer a
2055 * few frames ahead of the current frame
2056 * position. Else two isochronous transfers
2059 xfer->endpoint->isoc_next = XHCI_MFINDEX_GET(x + (3 * 8));
2060 xfer->endpoint->is_synced = 1;
2061 temp.do_isoc_sync = 1;
2063 DPRINTFN(3, "start next=%d\n", xfer->endpoint->isoc_next);
2066 /* compute isochronous completion time */
2068 y = XHCI_MFINDEX_GET(xfer->endpoint->isoc_next - (x & ~7));
2070 xfer->isoc_time_complete =
2071 usb_isoc_time_expand(&temp.sc->sc_bus, x / 8) +
2072 (y / 8) + (((xfer->nframes << shift) + 7) / 8);
2075 temp.isoc_frame = xfer->endpoint->isoc_next;
2076 temp.trb_type = XHCI_TRB_TYPE_ISOCH;
2078 xfer->endpoint->isoc_next += xfer->nframes << shift;
2080 } else if (xfer->flags_int.control_xfr) {
2082 /* check if we should prepend a setup message */
2084 if (xfer->flags_int.control_hdr) {
2086 temp.len = xfer->frlengths[0];
2087 temp.pc = xfer->frbuffers + 0;
2088 temp.shortpkt = temp.len ? 1 : 0;
2089 temp.trb_type = XHCI_TRB_TYPE_SETUP_STAGE;
2092 /* check for last frame */
2093 if (xfer->nframes == 1) {
2094 /* no STATUS stage yet, SETUP is last */
2095 if (xfer->flags_int.control_act)
2096 temp.last_frame = 1;
2099 xhci_setup_generic_chain_sub(&temp);
2103 temp.isoc_delta = 0;
2104 temp.isoc_frame = 0;
2105 temp.trb_type = XHCI_TRB_TYPE_DATA_STAGE;
2109 temp.isoc_delta = 0;
2110 temp.isoc_frame = 0;
2111 temp.trb_type = XHCI_TRB_TYPE_NORMAL;
2114 if (x != xfer->nframes) {
2115 /* setup page_cache pointer */
2116 temp.pc = xfer->frbuffers + x;
2117 /* set endpoint direction */
2118 temp.direction = UE_GET_DIR(xfer->endpointno);
2121 while (x != xfer->nframes) {
2123 /* DATA0 / DATA1 message */
2125 temp.len = xfer->frlengths[x];
2126 temp.step_td = ((xfer->endpointno & UE_DIR_IN) &&
2127 x != 0 && temp.multishort == 0);
2131 if (x == xfer->nframes) {
2132 if (xfer->flags_int.control_xfr) {
2133 /* no STATUS stage yet, DATA is last */
2134 if (xfer->flags_int.control_act)
2135 temp.last_frame = 1;
2137 temp.last_frame = 1;
2140 if (temp.len == 0) {
2142 /* make sure that we send an USB packet */
2147 temp.tlbpc = mult - 1;
2149 } else if (xfer->flags_int.isochronous_xfr) {
2154 * Isochronous transfers don't have short
2155 * packet termination:
2160 /* isochronous transfers have a transfer limit */
2162 if (temp.len > xfer->max_frame_size)
2163 temp.len = xfer->max_frame_size;
2165 /* compute TD packet count */
2166 tdpc = (temp.len + xfer->max_packet_size - 1) /
2167 xfer->max_packet_size;
2169 temp.tbc = ((tdpc + mult - 1) / mult) - 1;
2170 temp.tlbpc = (tdpc % mult);
2172 if (temp.tlbpc == 0)
2173 temp.tlbpc = mult - 1;
2178 /* regular data transfer */
2180 temp.shortpkt = xfer->flags.force_short_xfer ? 0 : 1;
2183 xhci_setup_generic_chain_sub(&temp);
2185 if (xfer->flags_int.isochronous_xfr) {
2186 temp.offset += xfer->frlengths[x - 1];
2187 temp.isoc_frame += temp.isoc_delta;
2189 /* get next Page Cache pointer */
2190 temp.pc = xfer->frbuffers + x;
2194 /* check if we should append a status stage */
2196 if (xfer->flags_int.control_xfr &&
2197 !xfer->flags_int.control_act) {
2200 * Send a DATA1 message and invert the current
2201 * endpoint direction.
2203 temp.step_td = (xfer->nframes != 0);
2204 temp.direction = UE_GET_DIR(xfer->endpointno) ^ UE_DIR_IN;
2208 temp.last_frame = 1;
2209 temp.trb_type = XHCI_TRB_TYPE_STATUS_STAGE;
2211 xhci_setup_generic_chain_sub(&temp);
2216 /* must have at least one frame! */
2218 xfer->td_transfer_last = td;
2220 DPRINTF("first=%p last=%p\n", xfer->td_transfer_first, td);
2224 xhci_set_slot_pointer(struct xhci_softc *sc, uint8_t index, uint64_t dev_addr)
2226 struct usb_page_search buf_res;
2227 struct xhci_dev_ctx_addr *pdctxa;
2229 usbd_get_page(&sc->sc_hw.ctx_pc, 0, &buf_res);
2231 pdctxa = buf_res.buffer;
2233 DPRINTF("addr[%u]=0x%016llx\n", index, (long long)dev_addr);
2235 pdctxa->qwBaaDevCtxAddr[index] = htole64(dev_addr);
2237 usb_pc_cpu_flush(&sc->sc_hw.ctx_pc);
2241 xhci_configure_mask(struct usb_device *udev, uint32_t mask, uint8_t drop)
2243 struct xhci_softc *sc = XHCI_BUS2SC(udev->bus);
2244 struct usb_page_search buf_inp;
2245 struct xhci_input_dev_ctx *pinp;
2250 index = udev->controller_slot_id;
2252 usbd_get_page(&sc->sc_hw.devs[index].input_pc, 0, &buf_inp);
2254 pinp = buf_inp.buffer;
2257 mask &= XHCI_INCTX_NON_CTRL_MASK;
2258 xhci_ctx_set_le32(sc, &pinp->ctx_input.dwInCtx0, mask);
2259 xhci_ctx_set_le32(sc, &pinp->ctx_input.dwInCtx1, 0);
2261 xhci_ctx_set_le32(sc, &pinp->ctx_input.dwInCtx0, 0);
2262 xhci_ctx_set_le32(sc, &pinp->ctx_input.dwInCtx1, mask);
2264 /* find most significant set bit */
2265 for (x = 31; x != 1; x--) {
2266 if (mask & (1 << x))
2273 /* figure out maximum */
2274 if (x > sc->sc_hw.devs[index].context_num) {
2275 sc->sc_hw.devs[index].context_num = x;
2276 temp = xhci_ctx_get_le32(sc, &pinp->ctx_slot.dwSctx0);
2277 temp &= ~XHCI_SCTX_0_CTX_NUM_SET(31);
2278 temp |= XHCI_SCTX_0_CTX_NUM_SET(x + 1);
2279 xhci_ctx_set_le32(sc, &pinp->ctx_slot.dwSctx0, temp);
2286 xhci_configure_endpoint(struct usb_device *udev,
2287 struct usb_endpoint_descriptor *edesc, struct xhci_endpoint_ext *pepext,
2288 uint16_t interval, uint8_t max_packet_count,
2289 uint8_t mult, uint8_t fps_shift, uint16_t max_packet_size,
2290 uint16_t max_frame_size, uint8_t ep_mode)
2292 struct usb_page_search buf_inp;
2293 struct xhci_softc *sc = XHCI_BUS2SC(udev->bus);
2294 struct xhci_input_dev_ctx *pinp;
2295 uint64_t ring_addr = pepext->physaddr;
2301 index = udev->controller_slot_id;
2303 usbd_get_page(&sc->sc_hw.devs[index].input_pc, 0, &buf_inp);
2305 pinp = buf_inp.buffer;
2307 epno = edesc->bEndpointAddress;
2308 type = edesc->bmAttributes & UE_XFERTYPE;
2310 if (type == UE_CONTROL)
2313 epno = XHCI_EPNO2EPID(epno);
2316 return (USB_ERR_NO_PIPE); /* invalid */
2318 if (max_packet_count == 0)
2319 return (USB_ERR_BAD_BUFSIZE);
2324 return (USB_ERR_BAD_BUFSIZE);
2326 /* store endpoint mode */
2327 pepext->trb_ep_mode = ep_mode;
2328 usb_pc_cpu_flush(pepext->page_cache);
2330 if (ep_mode == USB_EP_MODE_STREAMS) {
2331 temp = XHCI_EPCTX_0_EPSTATE_SET(0) |
2332 XHCI_EPCTX_0_MAXP_STREAMS_SET(XHCI_MAX_STREAMS_LOG - 1) |
2333 XHCI_EPCTX_0_LSA_SET(1);
2335 ring_addr += sizeof(struct xhci_trb) *
2336 XHCI_MAX_TRANSFERS * XHCI_MAX_STREAMS;
2338 temp = XHCI_EPCTX_0_EPSTATE_SET(0) |
2339 XHCI_EPCTX_0_MAXP_STREAMS_SET(0) |
2340 XHCI_EPCTX_0_LSA_SET(0);
2342 ring_addr |= XHCI_EPCTX_2_DCS_SET(1);
2345 switch (udev->speed) {
2346 case USB_SPEED_FULL:
2359 temp |= XHCI_EPCTX_0_IVAL_SET(fps_shift);
2361 case UE_ISOCHRONOUS:
2362 temp |= XHCI_EPCTX_0_IVAL_SET(fps_shift);
2364 switch (udev->speed) {
2365 case USB_SPEED_SUPER:
2368 temp |= XHCI_EPCTX_0_MULT_SET(mult - 1);
2369 max_packet_count /= mult;
2379 xhci_ctx_set_le32(sc, &pinp->ctx_ep[epno - 1].dwEpCtx0, temp);
2382 XHCI_EPCTX_1_HID_SET(0) |
2383 XHCI_EPCTX_1_MAXB_SET(max_packet_count) |
2384 XHCI_EPCTX_1_MAXP_SIZE_SET(max_packet_size);
2386 if ((udev->parent_hs_hub != NULL) || (udev->address != 0)) {
2387 if (type != UE_ISOCHRONOUS)
2388 temp |= XHCI_EPCTX_1_CERR_SET(3);
2393 temp |= XHCI_EPCTX_1_EPTYPE_SET(4);
2395 case UE_ISOCHRONOUS:
2396 temp |= XHCI_EPCTX_1_EPTYPE_SET(1);
2399 temp |= XHCI_EPCTX_1_EPTYPE_SET(2);
2402 temp |= XHCI_EPCTX_1_EPTYPE_SET(3);
2406 /* check for IN direction */
2408 temp |= XHCI_EPCTX_1_EPTYPE_SET(4);
2410 xhci_ctx_set_le32(sc, &pinp->ctx_ep[epno - 1].dwEpCtx1, temp);
2411 xhci_ctx_set_le64(sc, &pinp->ctx_ep[epno - 1].qwEpCtx2, ring_addr);
2413 switch (edesc->bmAttributes & UE_XFERTYPE) {
2415 case UE_ISOCHRONOUS:
2416 temp = XHCI_EPCTX_4_MAX_ESIT_PAYLOAD_SET(max_frame_size) |
2417 XHCI_EPCTX_4_AVG_TRB_LEN_SET(MIN(XHCI_PAGE_SIZE,
2421 temp = XHCI_EPCTX_4_AVG_TRB_LEN_SET(8);
2424 temp = XHCI_EPCTX_4_AVG_TRB_LEN_SET(XHCI_PAGE_SIZE);
2428 xhci_ctx_set_le32(sc, &pinp->ctx_ep[epno - 1].dwEpCtx4, temp);
2431 xhci_dump_endpoint(sc, &pinp->ctx_ep[epno - 1]);
2433 usb_pc_cpu_flush(&sc->sc_hw.devs[index].input_pc);
2435 return (0); /* success */
2439 xhci_configure_endpoint_by_xfer(struct usb_xfer *xfer)
2441 struct xhci_endpoint_ext *pepext;
2442 struct usb_endpoint_ss_comp_descriptor *ecomp;
2445 pepext = xhci_get_endpoint_ext(xfer->xroot->udev,
2446 xfer->endpoint->edesc);
2448 ecomp = xfer->endpoint->ecomp;
2450 for (x = 0; x != XHCI_MAX_STREAMS; x++) {
2453 /* halt any transfers */
2454 pepext->trb[x * XHCI_MAX_TRANSFERS].dwTrb3 = 0;
2456 /* compute start of TRB ring for stream "x" */
2457 temp = pepext->physaddr +
2458 (x * XHCI_MAX_TRANSFERS * sizeof(struct xhci_trb)) +
2459 XHCI_SCTX_0_SCT_SEC_TR_RING;
2461 /* make tree structure */
2462 pepext->trb[(XHCI_MAX_TRANSFERS *
2463 XHCI_MAX_STREAMS) + x].qwTrb0 = htole64(temp);
2465 /* reserved fields */
2466 pepext->trb[(XHCI_MAX_TRANSFERS *
2467 XHCI_MAX_STREAMS) + x].dwTrb2 = 0;
2468 pepext->trb[(XHCI_MAX_TRANSFERS *
2469 XHCI_MAX_STREAMS) + x].dwTrb3 = 0;
2471 usb_pc_cpu_flush(pepext->page_cache);
2473 return (xhci_configure_endpoint(xfer->xroot->udev,
2474 xfer->endpoint->edesc, pepext,
2475 xfer->interval, xfer->max_packet_count,
2476 (ecomp != NULL) ? UE_GET_SS_ISO_MULT(ecomp->bmAttributes) + 1 : 1,
2477 usbd_xfer_get_fps_shift(xfer), xfer->max_packet_size,
2478 xfer->max_frame_size, xfer->endpoint->ep_mode));
2482 xhci_configure_device(struct usb_device *udev)
2484 struct xhci_softc *sc = XHCI_BUS2SC(udev->bus);
2485 struct usb_page_search buf_inp;
2486 struct usb_page_cache *pcinp;
2487 struct xhci_input_dev_ctx *pinp;
2488 struct usb_device *hubdev;
2496 index = udev->controller_slot_id;
2498 DPRINTF("index=%u\n", index);
2500 pcinp = &sc->sc_hw.devs[index].input_pc;
2502 usbd_get_page(pcinp, 0, &buf_inp);
2504 pinp = buf_inp.buffer;
2509 /* figure out route string and root HUB port number */
2511 for (hubdev = udev; hubdev != NULL; hubdev = hubdev->parent_hub) {
2513 if (hubdev->parent_hub == NULL)
2516 depth = hubdev->parent_hub->depth;
2519 * NOTE: HS/FS/LS devices and the SS root HUB can have
2520 * more than 15 ports
2523 rh_port = hubdev->port_no;
2532 route |= rh_port << (4 * (depth - 1));
2535 DPRINTF("Route=0x%08x\n", route);
2537 temp = XHCI_SCTX_0_ROUTE_SET(route) |
2538 XHCI_SCTX_0_CTX_NUM_SET(
2539 sc->sc_hw.devs[index].context_num + 1);
2541 switch (udev->speed) {
2543 temp |= XHCI_SCTX_0_SPEED_SET(2);
2544 if (udev->parent_hs_hub != NULL &&
2545 udev->parent_hs_hub->ddesc.bDeviceProtocol ==
2547 DPRINTF("Device inherits MTT\n");
2548 temp |= XHCI_SCTX_0_MTT_SET(1);
2551 case USB_SPEED_HIGH:
2552 temp |= XHCI_SCTX_0_SPEED_SET(3);
2553 if (sc->sc_hw.devs[index].nports != 0 &&
2554 udev->ddesc.bDeviceProtocol == UDPROTO_HSHUBMTT) {
2555 DPRINTF("HUB supports MTT\n");
2556 temp |= XHCI_SCTX_0_MTT_SET(1);
2559 case USB_SPEED_FULL:
2560 temp |= XHCI_SCTX_0_SPEED_SET(1);
2561 if (udev->parent_hs_hub != NULL &&
2562 udev->parent_hs_hub->ddesc.bDeviceProtocol ==
2564 DPRINTF("Device inherits MTT\n");
2565 temp |= XHCI_SCTX_0_MTT_SET(1);
2569 temp |= XHCI_SCTX_0_SPEED_SET(4);
2573 is_hub = sc->sc_hw.devs[index].nports != 0 &&
2574 (udev->speed == USB_SPEED_SUPER ||
2575 udev->speed == USB_SPEED_HIGH);
2578 temp |= XHCI_SCTX_0_HUB_SET(1);
2580 xhci_ctx_set_le32(sc, &pinp->ctx_slot.dwSctx0, temp);
2582 temp = XHCI_SCTX_1_RH_PORT_SET(rh_port);
2585 temp |= XHCI_SCTX_1_NUM_PORTS_SET(
2586 sc->sc_hw.devs[index].nports);
2589 switch (udev->speed) {
2590 case USB_SPEED_SUPER:
2591 switch (sc->sc_hw.devs[index].state) {
2592 case XHCI_ST_ADDRESSED:
2593 case XHCI_ST_CONFIGURED:
2594 /* enable power save */
2595 temp |= XHCI_SCTX_1_MAX_EL_SET(sc->sc_exit_lat_max);
2598 /* disable power save */
2606 xhci_ctx_set_le32(sc, &pinp->ctx_slot.dwSctx1, temp);
2608 temp = XHCI_SCTX_2_IRQ_TARGET_SET(0);
2611 temp |= XHCI_SCTX_2_TT_THINK_TIME_SET(
2612 sc->sc_hw.devs[index].tt);
2615 hubdev = udev->parent_hs_hub;
2617 /* check if we should activate the transaction translator */
2618 switch (udev->speed) {
2619 case USB_SPEED_FULL:
2621 if (hubdev != NULL) {
2622 temp |= XHCI_SCTX_2_TT_HUB_SID_SET(
2623 hubdev->controller_slot_id);
2624 temp |= XHCI_SCTX_2_TT_PORT_NUM_SET(
2632 xhci_ctx_set_le32(sc, &pinp->ctx_slot.dwSctx2, temp);
2635 * These fields should be initialized to zero, according to
2636 * XHCI section 6.2.2 - slot context:
2638 temp = XHCI_SCTX_3_DEV_ADDR_SET(0) |
2639 XHCI_SCTX_3_SLOT_STATE_SET(0);
2641 xhci_ctx_set_le32(sc, &pinp->ctx_slot.dwSctx3, temp);
2644 xhci_dump_device(sc, &pinp->ctx_slot);
2646 usb_pc_cpu_flush(pcinp);
2648 return (0); /* success */
2652 xhci_alloc_device_ext(struct usb_device *udev)
2654 struct xhci_softc *sc = XHCI_BUS2SC(udev->bus);
2655 struct usb_page_search buf_dev;
2656 struct usb_page_search buf_ep;
2657 struct xhci_trb *trb;
2658 struct usb_page_cache *pc;
2659 struct usb_page *pg;
2664 index = udev->controller_slot_id;
2666 pc = &sc->sc_hw.devs[index].device_pc;
2667 pg = &sc->sc_hw.devs[index].device_pg;
2669 /* need to initialize the page cache */
2670 pc->tag_parent = sc->sc_bus.dma_parent_tag;
2672 if (usb_pc_alloc_mem(pc, pg, sc->sc_ctx_is_64_byte ?
2673 (2 * sizeof(struct xhci_dev_ctx)) :
2674 sizeof(struct xhci_dev_ctx), XHCI_PAGE_SIZE))
2677 usbd_get_page(pc, 0, &buf_dev);
2679 pc = &sc->sc_hw.devs[index].input_pc;
2680 pg = &sc->sc_hw.devs[index].input_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_input_dev_ctx)) :
2687 sizeof(struct xhci_input_dev_ctx), XHCI_PAGE_SIZE)) {
2691 pc = &sc->sc_hw.devs[index].endpoint_pc;
2692 pg = &sc->sc_hw.devs[index].endpoint_pg;
2694 /* need to initialize the page cache */
2695 pc->tag_parent = sc->sc_bus.dma_parent_tag;
2697 if (usb_pc_alloc_mem(pc, pg,
2698 sizeof(struct xhci_dev_endpoint_trbs), XHCI_PAGE_SIZE)) {
2702 /* initialise all endpoint LINK TRBs */
2704 for (i = 0; i != XHCI_MAX_ENDPOINTS; i++) {
2706 /* lookup endpoint TRB ring */
2707 usbd_get_page(pc, (uintptr_t)&
2708 ((struct xhci_dev_endpoint_trbs *)0)->trb[i][0], &buf_ep);
2710 /* get TRB pointer */
2711 trb = buf_ep.buffer;
2712 trb += XHCI_MAX_TRANSFERS - 1;
2714 /* get TRB start address */
2715 addr = buf_ep.physaddr;
2717 /* create LINK TRB */
2718 trb->qwTrb0 = htole64(addr);
2719 trb->dwTrb2 = htole32(XHCI_TRB_2_IRQ_SET(0));
2720 trb->dwTrb3 = htole32(XHCI_TRB_3_CYCLE_BIT |
2721 XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_LINK));
2724 usb_pc_cpu_flush(pc);
2726 xhci_set_slot_pointer(sc, index, buf_dev.physaddr);
2731 xhci_free_device_ext(udev);
2733 return (USB_ERR_NOMEM);
2737 xhci_free_device_ext(struct usb_device *udev)
2739 struct xhci_softc *sc = XHCI_BUS2SC(udev->bus);
2742 index = udev->controller_slot_id;
2743 xhci_set_slot_pointer(sc, index, 0);
2745 usb_pc_free_mem(&sc->sc_hw.devs[index].device_pc);
2746 usb_pc_free_mem(&sc->sc_hw.devs[index].input_pc);
2747 usb_pc_free_mem(&sc->sc_hw.devs[index].endpoint_pc);
2750 static struct xhci_endpoint_ext *
2751 xhci_get_endpoint_ext(struct usb_device *udev, struct usb_endpoint_descriptor *edesc)
2753 struct xhci_softc *sc = XHCI_BUS2SC(udev->bus);
2754 struct xhci_endpoint_ext *pepext;
2755 struct usb_page_cache *pc;
2756 struct usb_page_search buf_ep;
2760 epno = edesc->bEndpointAddress;
2761 if ((edesc->bmAttributes & UE_XFERTYPE) == UE_CONTROL)
2764 epno = XHCI_EPNO2EPID(epno);
2766 index = udev->controller_slot_id;
2768 pc = &sc->sc_hw.devs[index].endpoint_pc;
2770 usbd_get_page(pc, (uintptr_t)&((struct xhci_dev_endpoint_trbs *)0)->
2771 trb[epno][0], &buf_ep);
2773 pepext = &sc->sc_hw.devs[index].endp[epno];
2774 pepext->page_cache = pc;
2775 pepext->trb = buf_ep.buffer;
2776 pepext->physaddr = buf_ep.physaddr;
2782 xhci_endpoint_doorbell(struct usb_xfer *xfer)
2784 struct xhci_softc *sc = XHCI_BUS2SC(xfer->xroot->bus);
2788 epno = xfer->endpointno;
2789 if (xfer->flags_int.control_xfr)
2792 epno = XHCI_EPNO2EPID(epno);
2793 index = xfer->xroot->udev->controller_slot_id;
2795 if (xfer->xroot->udev->flags.self_suspended == 0) {
2796 XWRITE4(sc, door, XHCI_DOORBELL(index),
2797 epno | XHCI_DB_SID_SET(xfer->stream_id));
2802 xhci_transfer_remove(struct usb_xfer *xfer, usb_error_t error)
2804 struct xhci_endpoint_ext *pepext;
2806 if (xfer->flags_int.bandwidth_reclaimed) {
2807 xfer->flags_int.bandwidth_reclaimed = 0;
2809 pepext = xhci_get_endpoint_ext(xfer->xroot->udev,
2810 xfer->endpoint->edesc);
2812 pepext->trb_used[xfer->stream_id]--;
2814 pepext->xfer[xfer->qh_pos] = NULL;
2816 if (error && pepext->trb_running != 0) {
2817 pepext->trb_halted = 1;
2818 pepext->trb_running = 0;
2824 xhci_transfer_insert(struct usb_xfer *xfer)
2826 struct xhci_td *td_first;
2827 struct xhci_td *td_last;
2828 struct xhci_trb *trb_link;
2829 struct xhci_endpoint_ext *pepext;
2838 id = xfer->stream_id;
2840 /* check if already inserted */
2841 if (xfer->flags_int.bandwidth_reclaimed) {
2842 DPRINTFN(8, "Already in schedule\n");
2846 pepext = xhci_get_endpoint_ext(xfer->xroot->udev,
2847 xfer->endpoint->edesc);
2849 td_first = xfer->td_transfer_first;
2850 td_last = xfer->td_transfer_last;
2851 addr = pepext->physaddr;
2853 switch (xfer->endpoint->edesc->bmAttributes & UE_XFERTYPE) {
2856 /* single buffered */
2860 /* multi buffered */
2861 trb_limit = (XHCI_MAX_TRANSFERS - 2);
2865 if (pepext->trb_used[id] >= trb_limit) {
2866 DPRINTFN(8, "Too many TDs queued.\n");
2867 return (USB_ERR_NOMEM);
2870 /* check for stopped condition, after putting transfer on interrupt queue */
2871 if (pepext->trb_running == 0) {
2872 struct xhci_softc *sc = XHCI_BUS2SC(xfer->xroot->bus);
2874 DPRINTFN(8, "Not running\n");
2876 /* start configuration */
2877 (void)usb_proc_msignal(USB_BUS_CONTROL_XFER_PROC(&sc->sc_bus),
2878 &sc->sc_config_msg[0], &sc->sc_config_msg[1]);
2882 pepext->trb_used[id]++;
2884 /* get current TRB index */
2885 i = pepext->trb_index[id];
2887 /* get next TRB index */
2890 /* the last entry of the ring is a hardcoded link TRB */
2891 if (inext >= (XHCI_MAX_TRANSFERS - 1))
2894 /* store next TRB index, before stream ID offset is added */
2895 pepext->trb_index[id] = inext;
2897 /* offset for stream */
2898 i += id * XHCI_MAX_TRANSFERS;
2899 inext += id * XHCI_MAX_TRANSFERS;
2901 /* compute terminating return address */
2902 addr += (inext * sizeof(struct xhci_trb));
2904 /* compute link TRB pointer */
2905 trb_link = td_last->td_trb + td_last->ntrb;
2907 /* update next pointer of last link TRB */
2908 trb_link->qwTrb0 = htole64(addr);
2909 trb_link->dwTrb2 = htole32(XHCI_TRB_2_IRQ_SET(0));
2910 trb_link->dwTrb3 = htole32(XHCI_TRB_3_IOC_BIT |
2911 XHCI_TRB_3_CYCLE_BIT |
2912 XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_LINK));
2915 xhci_dump_trb(&td_last->td_trb[td_last->ntrb]);
2917 usb_pc_cpu_flush(td_last->page_cache);
2919 /* write ahead chain end marker */
2921 pepext->trb[inext].qwTrb0 = 0;
2922 pepext->trb[inext].dwTrb2 = 0;
2923 pepext->trb[inext].dwTrb3 = 0;
2925 /* update next pointer of link TRB */
2927 pepext->trb[i].qwTrb0 = htole64((uint64_t)td_first->td_self);
2928 pepext->trb[i].dwTrb2 = htole32(XHCI_TRB_2_IRQ_SET(0));
2931 xhci_dump_trb(&pepext->trb[i]);
2933 usb_pc_cpu_flush(pepext->page_cache);
2935 /* toggle cycle bit which activates the transfer chain */
2937 pepext->trb[i].dwTrb3 = htole32(XHCI_TRB_3_CYCLE_BIT |
2938 XHCI_TRB_3_TYPE_SET(XHCI_TRB_TYPE_LINK));
2940 usb_pc_cpu_flush(pepext->page_cache);
2942 DPRINTF("qh_pos = %u\n", i);
2944 pepext->xfer[i] = xfer;
2948 xfer->flags_int.bandwidth_reclaimed = 1;
2950 xhci_endpoint_doorbell(xfer);
2956 xhci_root_intr(struct xhci_softc *sc)
2960 USB_BUS_LOCK_ASSERT(&sc->sc_bus, MA_OWNED);
2962 /* clear any old interrupt data */
2963 memset(sc->sc_hub_idata, 0, sizeof(sc->sc_hub_idata));
2965 for (i = 1; i <= sc->sc_noport; i++) {
2966 /* pick out CHANGE bits from the status register */
2967 if (XREAD4(sc, oper, XHCI_PORTSC(i)) & (
2968 XHCI_PS_CSC | XHCI_PS_PEC |
2969 XHCI_PS_OCC | XHCI_PS_WRC |
2970 XHCI_PS_PRC | XHCI_PS_PLC |
2972 sc->sc_hub_idata[i / 8] |= 1 << (i % 8);
2973 DPRINTF("port %d changed\n", i);
2976 uhub_root_intr(&sc->sc_bus, sc->sc_hub_idata,
2977 sizeof(sc->sc_hub_idata));
2980 /*------------------------------------------------------------------------*
2981 * xhci_device_done - XHCI done handler
2983 * NOTE: This function can be called two times in a row on
2984 * the same USB transfer. From close and from interrupt.
2985 *------------------------------------------------------------------------*/
2987 xhci_device_done(struct usb_xfer *xfer, usb_error_t error)
2989 DPRINTFN(2, "xfer=%p, endpoint=%p, error=%d\n",
2990 xfer, xfer->endpoint, error);
2992 /* remove transfer from HW queue */
2993 xhci_transfer_remove(xfer, error);
2995 /* dequeue transfer and start next transfer */
2996 usbd_transfer_done(xfer, error);
2999 /*------------------------------------------------------------------------*
3000 * XHCI data transfer support (generic type)
3001 *------------------------------------------------------------------------*/
3003 xhci_device_generic_open(struct usb_xfer *xfer)
3005 if (xfer->flags_int.isochronous_xfr) {
3006 switch (xfer->xroot->udev->speed) {
3007 case USB_SPEED_FULL:
3010 usb_hs_bandwidth_alloc(xfer);
3017 xhci_device_generic_close(struct usb_xfer *xfer)
3021 xhci_device_done(xfer, USB_ERR_CANCELLED);
3023 if (xfer->flags_int.isochronous_xfr) {
3024 switch (xfer->xroot->udev->speed) {
3025 case USB_SPEED_FULL:
3028 usb_hs_bandwidth_free(xfer);
3035 xhci_device_generic_multi_enter(struct usb_endpoint *ep,
3036 usb_stream_t stream_id, struct usb_xfer *enter_xfer)
3038 struct usb_xfer *xfer;
3040 /* check if there is a current transfer */
3041 xfer = ep->endpoint_q[stream_id].curr;
3046 * Check if the current transfer is started and then pickup
3047 * the next one, if any. Else wait for next start event due to
3048 * block on failure feature.
3050 if (!xfer->flags_int.bandwidth_reclaimed)
3053 xfer = TAILQ_FIRST(&ep->endpoint_q[stream_id].head);
3056 * In case of enter we have to consider that the
3057 * transfer is queued by the USB core after the enter
3066 /* try to multi buffer */
3067 xhci_transfer_insert(xfer);
3071 xhci_device_generic_enter(struct usb_xfer *xfer)
3075 /* setup TD's and QH */
3076 xhci_setup_generic_chain(xfer);
3078 xhci_device_generic_multi_enter(xfer->endpoint,
3079 xfer->stream_id, xfer);
3083 xhci_device_generic_start(struct usb_xfer *xfer)
3087 /* try to insert xfer on HW queue */
3088 xhci_transfer_insert(xfer);
3090 /* try to multi buffer */
3091 xhci_device_generic_multi_enter(xfer->endpoint,
3092 xfer->stream_id, NULL);
3094 /* add transfer last on interrupt queue */
3095 usbd_transfer_enqueue(&xfer->xroot->bus->intr_q, xfer);
3097 /* start timeout, if any */
3098 if (xfer->timeout != 0)
3099 usbd_transfer_timeout_ms(xfer, &xhci_timeout, xfer->timeout);
3102 struct usb_pipe_methods xhci_device_generic_methods =
3104 .open = xhci_device_generic_open,
3105 .close = xhci_device_generic_close,
3106 .enter = xhci_device_generic_enter,
3107 .start = xhci_device_generic_start,
3110 /*------------------------------------------------------------------------*
3111 * xhci root HUB support
3112 *------------------------------------------------------------------------*
3113 * Simulate a hardware HUB by handling all the necessary requests.
3114 *------------------------------------------------------------------------*/
3116 #define HSETW(ptr, val) ptr = { (uint8_t)(val), (uint8_t)((val) >> 8) }
3119 struct usb_device_descriptor xhci_devd =
3121 .bLength = sizeof(xhci_devd),
3122 .bDescriptorType = UDESC_DEVICE, /* type */
3123 HSETW(.bcdUSB, 0x0300), /* USB version */
3124 .bDeviceClass = UDCLASS_HUB, /* class */
3125 .bDeviceSubClass = UDSUBCLASS_HUB, /* subclass */
3126 .bDeviceProtocol = UDPROTO_SSHUB, /* protocol */
3127 .bMaxPacketSize = 9, /* max packet size */
3128 HSETW(.idVendor, 0x0000), /* vendor */
3129 HSETW(.idProduct, 0x0000), /* product */
3130 HSETW(.bcdDevice, 0x0100), /* device version */
3134 .bNumConfigurations = 1, /* # of configurations */
3138 struct xhci_bos_desc xhci_bosd = {
3140 .bLength = sizeof(xhci_bosd.bosd),
3141 .bDescriptorType = UDESC_BOS,
3142 HSETW(.wTotalLength, sizeof(xhci_bosd)),
3143 .bNumDeviceCaps = 3,
3146 .bLength = sizeof(xhci_bosd.usb2extd),
3147 .bDescriptorType = 1,
3148 .bDevCapabilityType = 2,
3149 .bmAttributes[0] = 2,
3152 .bLength = sizeof(xhci_bosd.usbdcd),
3153 .bDescriptorType = UDESC_DEVICE_CAPABILITY,
3154 .bDevCapabilityType = 3,
3155 .bmAttributes = 0, /* XXX */
3156 HSETW(.wSpeedsSupported, 0x000C),
3157 .bFunctionalitySupport = 8,
3158 .bU1DevExitLat = 255, /* dummy - not used */
3159 .wU2DevExitLat = { 0x00, 0x08 },
3162 .bLength = sizeof(xhci_bosd.cidd),
3163 .bDescriptorType = 1,
3164 .bDevCapabilityType = 4,
3166 .bContainerID = 0, /* XXX */
3171 struct xhci_config_desc xhci_confd = {
3173 .bLength = sizeof(xhci_confd.confd),
3174 .bDescriptorType = UDESC_CONFIG,
3175 .wTotalLength[0] = sizeof(xhci_confd),
3177 .bConfigurationValue = 1,
3178 .iConfiguration = 0,
3179 .bmAttributes = UC_SELF_POWERED,
3180 .bMaxPower = 0 /* max power */
3183 .bLength = sizeof(xhci_confd.ifcd),
3184 .bDescriptorType = UDESC_INTERFACE,
3186 .bInterfaceClass = UICLASS_HUB,
3187 .bInterfaceSubClass = UISUBCLASS_HUB,
3188 .bInterfaceProtocol = 0,
3191 .bLength = sizeof(xhci_confd.endpd),
3192 .bDescriptorType = UDESC_ENDPOINT,
3193 .bEndpointAddress = UE_DIR_IN | XHCI_INTR_ENDPT,
3194 .bmAttributes = UE_INTERRUPT,
3195 .wMaxPacketSize[0] = 2, /* max 15 ports */
3199 .bLength = sizeof(xhci_confd.endpcd),
3200 .bDescriptorType = UDESC_ENDPOINT_SS_COMP,
3207 struct usb_hub_ss_descriptor xhci_hubd = {
3208 .bLength = sizeof(xhci_hubd),
3209 .bDescriptorType = UDESC_SS_HUB,
3213 xhci_roothub_exec(struct usb_device *udev,
3214 struct usb_device_request *req, const void **pptr, uint16_t *plength)
3216 struct xhci_softc *sc = XHCI_BUS2SC(udev->bus);
3217 const char *str_ptr;
3228 USB_BUS_LOCK_ASSERT(&sc->sc_bus, MA_OWNED);
3231 ptr = (const void *)&sc->sc_hub_desc;
3235 value = UGETW(req->wValue);
3236 index = UGETW(req->wIndex);
3238 DPRINTFN(3, "type=0x%02x request=0x%02x wLen=0x%04x "
3239 "wValue=0x%04x wIndex=0x%04x\n",
3240 req->bmRequestType, req->bRequest,
3241 UGETW(req->wLength), value, index);
3243 #define C(x,y) ((x) | ((y) << 8))
3244 switch (C(req->bRequest, req->bmRequestType)) {
3245 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE):
3246 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE):
3247 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT):
3249 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops
3250 * for the integrated root hub.
3253 case C(UR_GET_CONFIG, UT_READ_DEVICE):
3255 sc->sc_hub_desc.temp[0] = sc->sc_conf;
3257 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE):
3258 switch (value >> 8) {
3260 if ((value & 0xff) != 0) {
3261 err = USB_ERR_IOERROR;
3264 len = sizeof(xhci_devd);
3265 ptr = (const void *)&xhci_devd;
3269 if ((value & 0xff) != 0) {
3270 err = USB_ERR_IOERROR;
3273 len = sizeof(xhci_bosd);
3274 ptr = (const void *)&xhci_bosd;
3278 if ((value & 0xff) != 0) {
3279 err = USB_ERR_IOERROR;
3282 len = sizeof(xhci_confd);
3283 ptr = (const void *)&xhci_confd;
3287 switch (value & 0xff) {
3288 case 0: /* Language table */
3292 case 1: /* Vendor */
3293 str_ptr = sc->sc_vendor;
3296 case 2: /* Product */
3297 str_ptr = "XHCI root HUB";
3305 len = usb_make_str_desc(
3306 sc->sc_hub_desc.temp,
3307 sizeof(sc->sc_hub_desc.temp),
3312 err = USB_ERR_IOERROR;
3316 case C(UR_GET_INTERFACE, UT_READ_INTERFACE):
3318 sc->sc_hub_desc.temp[0] = 0;
3320 case C(UR_GET_STATUS, UT_READ_DEVICE):
3322 USETW(sc->sc_hub_desc.stat.wStatus, UDS_SELF_POWERED);
3324 case C(UR_GET_STATUS, UT_READ_INTERFACE):
3325 case C(UR_GET_STATUS, UT_READ_ENDPOINT):
3327 USETW(sc->sc_hub_desc.stat.wStatus, 0);
3329 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE):
3330 if (value >= XHCI_MAX_DEVICES) {
3331 err = USB_ERR_IOERROR;
3335 case C(UR_SET_CONFIG, UT_WRITE_DEVICE):
3336 if (value != 0 && value != 1) {
3337 err = USB_ERR_IOERROR;
3340 sc->sc_conf = value;
3342 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE):
3344 case C(UR_SET_FEATURE, UT_WRITE_DEVICE):
3345 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE):
3346 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT):
3347 err = USB_ERR_IOERROR;
3349 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE):
3351 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT):
3354 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE):
3356 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER):
3357 DPRINTFN(9, "UR_CLEAR_PORT_FEATURE\n");
3360 (index > sc->sc_noport)) {
3361 err = USB_ERR_IOERROR;
3364 port = XHCI_PORTSC(index);
3366 v = XREAD4(sc, oper, port);
3367 i = XHCI_PS_PLS_GET(v);
3368 v &= ~XHCI_PS_CLEAR;
3371 case UHF_C_BH_PORT_RESET:
3372 XWRITE4(sc, oper, port, v | XHCI_PS_WRC);
3374 case UHF_C_PORT_CONFIG_ERROR:
3375 XWRITE4(sc, oper, port, v | XHCI_PS_CEC);
3377 case UHF_C_PORT_SUSPEND:
3378 case UHF_C_PORT_LINK_STATE:
3379 XWRITE4(sc, oper, port, v | XHCI_PS_PLC);
3381 case UHF_C_PORT_CONNECTION:
3382 XWRITE4(sc, oper, port, v | XHCI_PS_CSC);
3384 case UHF_C_PORT_ENABLE:
3385 XWRITE4(sc, oper, port, v | XHCI_PS_PEC);
3387 case UHF_C_PORT_OVER_CURRENT:
3388 XWRITE4(sc, oper, port, v | XHCI_PS_OCC);
3390 case UHF_C_PORT_RESET:
3391 XWRITE4(sc, oper, port, v | XHCI_PS_PRC);
3393 case UHF_PORT_ENABLE:
3394 XWRITE4(sc, oper, port, v | XHCI_PS_PED);
3396 case UHF_PORT_POWER:
3397 XWRITE4(sc, oper, port, v & ~XHCI_PS_PP);
3399 case UHF_PORT_INDICATOR:
3400 XWRITE4(sc, oper, port, v & ~XHCI_PS_PIC_SET(3));
3402 case UHF_PORT_SUSPEND:
3406 XWRITE4(sc, oper, port, v |
3407 XHCI_PS_PLS_SET(0xF) | XHCI_PS_LWS);
3410 /* wait 20ms for resume sequence to complete */
3411 usb_pause_mtx(&sc->sc_bus.bus_mtx, hz / 50);
3414 XWRITE4(sc, oper, port, v |
3415 XHCI_PS_PLS_SET(0) | XHCI_PS_LWS);
3418 err = USB_ERR_IOERROR;
3423 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE):
3424 if ((value & 0xff) != 0) {
3425 err = USB_ERR_IOERROR;
3429 v = XREAD4(sc, capa, XHCI_HCSPARAMS0);
3431 sc->sc_hub_desc.hubd = xhci_hubd;
3433 sc->sc_hub_desc.hubd.bNbrPorts = sc->sc_noport;
3435 if (XHCI_HCS0_PPC(v))
3436 i = UHD_PWR_INDIVIDUAL;
3440 if (XHCI_HCS0_PIND(v))
3443 i |= UHD_OC_INDIVIDUAL;
3445 USETW(sc->sc_hub_desc.hubd.wHubCharacteristics, i);
3447 /* see XHCI section 5.4.9: */
3448 sc->sc_hub_desc.hubd.bPwrOn2PwrGood = 10;
3450 for (j = 1; j <= sc->sc_noport; j++) {
3452 v = XREAD4(sc, oper, XHCI_PORTSC(j));
3453 if (v & XHCI_PS_DR) {
3454 sc->sc_hub_desc.hubd.
3455 DeviceRemovable[j / 8] |= 1U << (j % 8);
3458 len = sc->sc_hub_desc.hubd.bLength;
3461 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE):
3463 memset(sc->sc_hub_desc.temp, 0, 16);
3466 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER):
3467 DPRINTFN(9, "UR_GET_STATUS i=%d\n", index);
3470 (index > sc->sc_noport)) {
3471 err = USB_ERR_IOERROR;
3475 v = XREAD4(sc, oper, XHCI_PORTSC(index));
3477 DPRINTFN(9, "port status=0x%08x\n", v);
3479 i = UPS_PORT_LINK_STATE_SET(XHCI_PS_PLS_GET(v));
3481 switch (XHCI_PS_SPEED_GET(v)) {
3483 i |= UPS_HIGH_SPEED;
3492 i |= UPS_OTHER_SPEED;
3496 if (v & XHCI_PS_CCS)
3497 i |= UPS_CURRENT_CONNECT_STATUS;
3498 if (v & XHCI_PS_PED)
3499 i |= UPS_PORT_ENABLED;
3500 if (v & XHCI_PS_OCA)
3501 i |= UPS_OVERCURRENT_INDICATOR;
3504 if (v & XHCI_PS_PP) {
3506 * The USB 3.0 RH is using the
3507 * USB 2.0's power bit
3509 i |= UPS_PORT_POWER;
3511 USETW(sc->sc_hub_desc.ps.wPortStatus, i);
3514 if (v & XHCI_PS_CSC)
3515 i |= UPS_C_CONNECT_STATUS;
3516 if (v & XHCI_PS_PEC)
3517 i |= UPS_C_PORT_ENABLED;
3518 if (v & XHCI_PS_OCC)
3519 i |= UPS_C_OVERCURRENT_INDICATOR;
3520 if (v & XHCI_PS_WRC)
3521 i |= UPS_C_BH_PORT_RESET;
3522 if (v & XHCI_PS_PRC)
3523 i |= UPS_C_PORT_RESET;
3524 if (v & XHCI_PS_PLC)
3525 i |= UPS_C_PORT_LINK_STATE;
3526 if (v & XHCI_PS_CEC)
3527 i |= UPS_C_PORT_CONFIG_ERROR;
3529 USETW(sc->sc_hub_desc.ps.wPortChange, i);
3530 len = sizeof(sc->sc_hub_desc.ps);
3533 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE):
3534 err = USB_ERR_IOERROR;
3537 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE):
3540 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER):
3546 (index > sc->sc_noport)) {
3547 err = USB_ERR_IOERROR;
3551 port = XHCI_PORTSC(index);
3552 v = XREAD4(sc, oper, port) & ~XHCI_PS_CLEAR;
3555 case UHF_PORT_U1_TIMEOUT:
3556 if (XHCI_PS_SPEED_GET(v) != 4) {
3557 err = USB_ERR_IOERROR;
3560 port = XHCI_PORTPMSC(index);
3561 v = XREAD4(sc, oper, port);
3562 v &= ~XHCI_PM3_U1TO_SET(0xFF);
3563 v |= XHCI_PM3_U1TO_SET(i);
3564 XWRITE4(sc, oper, port, v);
3566 case UHF_PORT_U2_TIMEOUT:
3567 if (XHCI_PS_SPEED_GET(v) != 4) {
3568 err = USB_ERR_IOERROR;
3571 port = XHCI_PORTPMSC(index);
3572 v = XREAD4(sc, oper, port);
3573 v &= ~XHCI_PM3_U2TO_SET(0xFF);
3574 v |= XHCI_PM3_U2TO_SET(i);
3575 XWRITE4(sc, oper, port, v);
3577 case UHF_BH_PORT_RESET:
3578 XWRITE4(sc, oper, port, v | XHCI_PS_WPR);
3580 case UHF_PORT_LINK_STATE:
3581 XWRITE4(sc, oper, port, v |
3582 XHCI_PS_PLS_SET(i) | XHCI_PS_LWS);
3583 /* 4ms settle time */
3584 usb_pause_mtx(&sc->sc_bus.bus_mtx, hz / 250);
3586 case UHF_PORT_ENABLE:
3587 DPRINTFN(3, "set port enable %d\n", index);
3589 case UHF_PORT_SUSPEND:
3590 DPRINTFN(6, "suspend port %u (LPM=%u)\n", index, i);
3591 j = XHCI_PS_SPEED_GET(v);
3592 if ((j < 1) || (j > 3)) {
3593 /* non-supported speed */
3594 err = USB_ERR_IOERROR;
3597 XWRITE4(sc, oper, port, v |
3598 XHCI_PS_PLS_SET(i ? 2 /* LPM */ : 3) | XHCI_PS_LWS);
3600 case UHF_PORT_RESET:
3601 DPRINTFN(6, "reset port %d\n", index);
3602 XWRITE4(sc, oper, port, v | XHCI_PS_PR);
3604 case UHF_PORT_POWER:
3605 DPRINTFN(3, "set port power %d\n", index);
3606 XWRITE4(sc, oper, port, v | XHCI_PS_PP);
3609 DPRINTFN(3, "set port test %d\n", index);
3611 case UHF_PORT_INDICATOR:
3612 DPRINTFN(3, "set port indicator %d\n", index);
3614 v &= ~XHCI_PS_PIC_SET(3);
3615 v |= XHCI_PS_PIC_SET(1);
3617 XWRITE4(sc, oper, port, v);
3620 err = USB_ERR_IOERROR;
3625 case C(UR_CLEAR_TT_BUFFER, UT_WRITE_CLASS_OTHER):
3626 case C(UR_RESET_TT, UT_WRITE_CLASS_OTHER):
3627 case C(UR_GET_TT_STATE, UT_READ_CLASS_OTHER):
3628 case C(UR_STOP_TT, UT_WRITE_CLASS_OTHER):
3631 err = USB_ERR_IOERROR;
3641 xhci_xfer_setup(struct usb_setup_params *parm)
3643 struct usb_page_search page_info;
3644 struct usb_page_cache *pc;
3645 struct xhci_softc *sc;
3646 struct usb_xfer *xfer;
3651 sc = XHCI_BUS2SC(parm->udev->bus);
3652 xfer = parm->curr_xfer;
3655 * The proof for the "ntd" formula is illustrated like this:
3657 * +------------------------------------+
3661 * | | xxx | x | frm 0 |
3663 * | | xxx | xx | frm 1 |
3666 * +------------------------------------+
3668 * "xxx" means a completely full USB transfer descriptor
3670 * "x" and "xx" means a short USB packet
3672 * For the remainder of an USB transfer modulo
3673 * "max_data_length" we need two USB transfer descriptors.
3674 * One to transfer the remaining data and one to finalise with
3675 * a zero length packet in case the "force_short_xfer" flag is
3676 * set. We only need two USB transfer descriptors in the case
3677 * where the transfer length of the first one is a factor of
3678 * "max_frame_size". The rest of the needed USB transfer
3679 * descriptors is given by the buffer size divided by the
3680 * maximum data payload.
3682 parm->hc_max_packet_size = 0x400;
3683 parm->hc_max_packet_count = 16 * 3;
3684 parm->hc_max_frame_size = XHCI_TD_PAYLOAD_MAX;
3686 xfer->flags_int.bdma_enable = 1;
3688 usbd_transfer_setup_sub(parm);
3690 if (xfer->flags_int.isochronous_xfr) {
3691 ntd = ((1 * xfer->nframes)
3692 + (xfer->max_data_length / xfer->max_hc_frame_size));
3693 } else if (xfer->flags_int.control_xfr) {
3694 ntd = ((2 * xfer->nframes) + 1 /* STATUS */
3695 + (xfer->max_data_length / xfer->max_hc_frame_size));
3697 ntd = ((2 * xfer->nframes)
3698 + (xfer->max_data_length / xfer->max_hc_frame_size));
3707 * Allocate queue heads and transfer descriptors
3711 if (usbd_transfer_setup_sub_malloc(
3712 parm, &pc, sizeof(struct xhci_td),
3713 XHCI_TD_ALIGN, ntd)) {
3714 parm->err = USB_ERR_NOMEM;
3718 for (n = 0; n != ntd; n++) {
3721 usbd_get_page(pc + n, 0, &page_info);
3723 td = page_info.buffer;
3726 td->td_self = page_info.physaddr;
3727 td->obj_next = last_obj;
3728 td->page_cache = pc + n;
3732 usb_pc_cpu_flush(pc + n);
3735 xfer->td_start[xfer->flags_int.curr_dma_set] = last_obj;
3737 if (!xfer->flags_int.curr_dma_set) {
3738 xfer->flags_int.curr_dma_set = 1;
3744 xhci_configure_reset_endpoint(struct usb_xfer *xfer)
3746 struct xhci_softc *sc = XHCI_BUS2SC(xfer->xroot->bus);
3747 struct usb_page_search buf_inp;
3748 struct usb_device *udev;
3749 struct xhci_endpoint_ext *pepext;
3750 struct usb_endpoint_descriptor *edesc;
3751 struct usb_page_cache *pcinp;
3753 usb_stream_t stream_id;
3757 pepext = xhci_get_endpoint_ext(xfer->xroot->udev,
3758 xfer->endpoint->edesc);
3760 udev = xfer->xroot->udev;
3761 index = udev->controller_slot_id;
3763 pcinp = &sc->sc_hw.devs[index].input_pc;
3765 usbd_get_page(pcinp, 0, &buf_inp);
3767 edesc = xfer->endpoint->edesc;
3769 epno = edesc->bEndpointAddress;
3770 stream_id = xfer->stream_id;
3772 if ((edesc->bmAttributes & UE_XFERTYPE) == UE_CONTROL)
3775 epno = XHCI_EPNO2EPID(epno);
3778 return (USB_ERR_NO_PIPE); /* invalid */
3782 /* configure endpoint */
3784 err = xhci_configure_endpoint_by_xfer(xfer);
3787 XHCI_CMD_UNLOCK(sc);
3792 * Get the endpoint into the stopped state according to the
3793 * endpoint context state diagram in the XHCI specification:
3796 err = xhci_cmd_stop_ep(sc, 0, epno, index);
3799 DPRINTF("Could not stop endpoint %u\n", epno);
3801 err = xhci_cmd_reset_ep(sc, 0, epno, index);
3804 DPRINTF("Could not reset endpoint %u\n", epno);
3806 err = xhci_cmd_set_tr_dequeue_ptr(sc,
3807 (pepext->physaddr + (stream_id * sizeof(struct xhci_trb) *
3808 XHCI_MAX_TRANSFERS)) | XHCI_EPCTX_2_DCS_SET(1),
3809 stream_id, epno, index);
3812 DPRINTF("Could not set dequeue ptr for endpoint %u\n", epno);
3815 * Get the endpoint into the running state according to the
3816 * endpoint context state diagram in the XHCI specification:
3819 xhci_configure_mask(udev, (1U << epno) | 1U, 0);
3821 err = xhci_cmd_evaluate_ctx(sc, buf_inp.physaddr, index);
3824 DPRINTF("Could not configure endpoint %u\n", epno);
3826 err = xhci_cmd_configure_ep(sc, buf_inp.physaddr, 0, index);
3829 DPRINTF("Could not configure endpoint %u\n", epno);
3831 XHCI_CMD_UNLOCK(sc);
3837 xhci_xfer_unsetup(struct usb_xfer *xfer)
3843 xhci_start_dma_delay(struct usb_xfer *xfer)
3845 struct xhci_softc *sc = XHCI_BUS2SC(xfer->xroot->bus);
3847 /* put transfer on interrupt queue (again) */
3848 usbd_transfer_enqueue(&sc->sc_bus.intr_q, xfer);
3850 (void)usb_proc_msignal(USB_BUS_CONTROL_XFER_PROC(&sc->sc_bus),
3851 &sc->sc_config_msg[0], &sc->sc_config_msg[1]);
3855 xhci_configure_msg(struct usb_proc_msg *pm)
3857 struct xhci_softc *sc;
3858 struct xhci_endpoint_ext *pepext;
3859 struct usb_xfer *xfer;
3861 sc = XHCI_BUS2SC(((struct usb_bus_msg *)pm)->bus);
3864 TAILQ_FOREACH(xfer, &sc->sc_bus.intr_q.head, wait_entry) {
3866 pepext = xhci_get_endpoint_ext(xfer->xroot->udev,
3867 xfer->endpoint->edesc);
3869 if ((pepext->trb_halted != 0) ||
3870 (pepext->trb_running == 0)) {
3874 /* clear halted and running */
3875 pepext->trb_halted = 0;
3876 pepext->trb_running = 0;
3878 /* nuke remaining buffered transfers */
3880 for (i = 0; i != (XHCI_MAX_TRANSFERS *
3881 XHCI_MAX_STREAMS); i++) {
3883 * NOTE: We need to use the timeout
3884 * error code here else existing
3885 * isochronous clients can get
3888 if (pepext->xfer[i] != NULL) {
3889 xhci_device_done(pepext->xfer[i],
3895 * NOTE: The USB transfer cannot vanish in
3899 USB_BUS_UNLOCK(&sc->sc_bus);
3901 xhci_configure_reset_endpoint(xfer);
3903 USB_BUS_LOCK(&sc->sc_bus);
3905 /* check if halted is still cleared */
3906 if (pepext->trb_halted == 0) {
3907 pepext->trb_running = 1;
3908 memset(pepext->trb_index, 0,
3909 sizeof(pepext->trb_index));
3914 if (xfer->flags_int.did_dma_delay) {
3916 /* remove transfer from interrupt queue (again) */
3917 usbd_transfer_dequeue(xfer);
3919 /* we are finally done */
3920 usb_dma_delay_done_cb(xfer);
3922 /* queue changed - restart */
3927 TAILQ_FOREACH(xfer, &sc->sc_bus.intr_q.head, wait_entry) {
3929 /* try to insert xfer on HW queue */
3930 xhci_transfer_insert(xfer);
3932 /* try to multi buffer */
3933 xhci_device_generic_multi_enter(xfer->endpoint,
3934 xfer->stream_id, NULL);
3939 xhci_ep_init(struct usb_device *udev, struct usb_endpoint_descriptor *edesc,
3940 struct usb_endpoint *ep)
3942 struct xhci_endpoint_ext *pepext;
3944 DPRINTFN(2, "endpoint=%p, addr=%d, endpt=%d, mode=%d\n",
3945 ep, udev->address, edesc->bEndpointAddress, udev->flags.usb_mode);
3947 if (udev->parent_hub == NULL) {
3948 /* root HUB has special endpoint handling */
3952 ep->methods = &xhci_device_generic_methods;
3954 pepext = xhci_get_endpoint_ext(udev, edesc);
3956 USB_BUS_LOCK(udev->bus);
3957 pepext->trb_halted = 1;
3958 pepext->trb_running = 0;
3959 USB_BUS_UNLOCK(udev->bus);
3963 xhci_ep_uninit(struct usb_device *udev, struct usb_endpoint *ep)
3969 xhci_ep_clear_stall(struct usb_device *udev, struct usb_endpoint *ep)
3971 struct xhci_endpoint_ext *pepext;
3975 if (udev->flags.usb_mode != USB_MODE_HOST) {
3979 if (udev->parent_hub == NULL) {
3980 /* root HUB has special endpoint handling */
3984 pepext = xhci_get_endpoint_ext(udev, ep->edesc);
3986 USB_BUS_LOCK(udev->bus);
3987 pepext->trb_halted = 1;
3988 pepext->trb_running = 0;
3989 USB_BUS_UNLOCK(udev->bus);
3993 xhci_device_init(struct usb_device *udev)
3995 struct xhci_softc *sc = XHCI_BUS2SC(udev->bus);
3999 /* no init for root HUB */
4000 if (udev->parent_hub == NULL)
4005 /* set invalid default */
4007 udev->controller_slot_id = sc->sc_noslot + 1;
4009 /* try to get a new slot ID from the XHCI */
4011 err = xhci_cmd_enable_slot(sc, &temp);
4014 XHCI_CMD_UNLOCK(sc);
4018 if (temp > sc->sc_noslot) {
4019 XHCI_CMD_UNLOCK(sc);
4020 return (USB_ERR_BAD_ADDRESS);
4023 if (sc->sc_hw.devs[temp].state != XHCI_ST_DISABLED) {
4024 DPRINTF("slot %u already allocated.\n", temp);
4025 XHCI_CMD_UNLOCK(sc);
4026 return (USB_ERR_BAD_ADDRESS);
4029 /* store slot ID for later reference */
4031 udev->controller_slot_id = temp;
4033 /* reset data structure */
4035 memset(&sc->sc_hw.devs[temp], 0, sizeof(sc->sc_hw.devs[0]));
4037 /* set mark slot allocated */
4039 sc->sc_hw.devs[temp].state = XHCI_ST_ENABLED;
4041 err = xhci_alloc_device_ext(udev);
4043 XHCI_CMD_UNLOCK(sc);
4045 /* get device into default state */
4048 err = xhci_set_address(udev, NULL, 0);
4054 xhci_device_uninit(struct usb_device *udev)
4056 struct xhci_softc *sc = XHCI_BUS2SC(udev->bus);
4059 /* no init for root HUB */
4060 if (udev->parent_hub == NULL)
4065 index = udev->controller_slot_id;
4067 if (index <= sc->sc_noslot) {
4068 xhci_cmd_disable_slot(sc, index);
4069 sc->sc_hw.devs[index].state = XHCI_ST_DISABLED;
4071 /* free device extension */
4072 xhci_free_device_ext(udev);
4075 XHCI_CMD_UNLOCK(sc);
4079 xhci_get_dma_delay(struct usb_device *udev, uint32_t *pus)
4082 * Wait until the hardware has finished any possible use of
4083 * the transfer descriptor(s)
4085 *pus = 2048; /* microseconds */
4089 xhci_device_resume(struct usb_device *udev)
4091 struct xhci_softc *sc = XHCI_BUS2SC(udev->bus);
4098 /* check for root HUB */
4099 if (udev->parent_hub == NULL)
4102 index = udev->controller_slot_id;
4106 /* blindly resume all endpoints */
4108 USB_BUS_LOCK(udev->bus);
4110 for (n = 1; n != XHCI_MAX_ENDPOINTS; n++) {
4111 for (p = 0; p != XHCI_MAX_STREAMS; p++) {
4112 XWRITE4(sc, door, XHCI_DOORBELL(index),
4113 n | XHCI_DB_SID_SET(p));
4117 USB_BUS_UNLOCK(udev->bus);
4119 XHCI_CMD_UNLOCK(sc);
4123 xhci_device_suspend(struct usb_device *udev)
4125 struct xhci_softc *sc = XHCI_BUS2SC(udev->bus);
4132 /* check for root HUB */
4133 if (udev->parent_hub == NULL)
4136 index = udev->controller_slot_id;
4140 /* blindly suspend all endpoints */
4142 for (n = 1; n != XHCI_MAX_ENDPOINTS; n++) {
4143 err = xhci_cmd_stop_ep(sc, 1, n, index);
4145 DPRINTF("Failed to suspend endpoint "
4146 "%u on slot %u (ignored).\n", n, index);
4150 XHCI_CMD_UNLOCK(sc);
4154 xhci_set_hw_power(struct usb_bus *bus)
4160 xhci_device_state_change(struct usb_device *udev)
4162 struct xhci_softc *sc = XHCI_BUS2SC(udev->bus);
4163 struct usb_page_search buf_inp;
4167 /* check for root HUB */
4168 if (udev->parent_hub == NULL)
4171 index = udev->controller_slot_id;
4175 if (usb_get_device_state(udev) == USB_STATE_CONFIGURED) {
4176 err = uhub_query_info(udev, &sc->sc_hw.devs[index].nports,
4177 &sc->sc_hw.devs[index].tt);
4179 sc->sc_hw.devs[index].nports = 0;
4184 switch (usb_get_device_state(udev)) {
4185 case USB_STATE_POWERED:
4186 if (sc->sc_hw.devs[index].state == XHCI_ST_DEFAULT)
4189 /* set default state */
4190 sc->sc_hw.devs[index].state = XHCI_ST_DEFAULT;
4192 /* reset number of contexts */
4193 sc->sc_hw.devs[index].context_num = 0;
4195 err = xhci_cmd_reset_dev(sc, index);
4198 DPRINTF("Device reset failed "
4199 "for slot %u.\n", index);
4203 case USB_STATE_ADDRESSED:
4204 if (sc->sc_hw.devs[index].state == XHCI_ST_ADDRESSED)
4207 sc->sc_hw.devs[index].state = XHCI_ST_ADDRESSED;
4209 err = xhci_cmd_configure_ep(sc, 0, 1, index);
4212 DPRINTF("Failed to deconfigure "
4213 "slot %u.\n", index);
4217 case USB_STATE_CONFIGURED:
4218 if (sc->sc_hw.devs[index].state == XHCI_ST_CONFIGURED)
4221 /* set configured state */
4222 sc->sc_hw.devs[index].state = XHCI_ST_CONFIGURED;
4224 /* reset number of contexts */
4225 sc->sc_hw.devs[index].context_num = 0;
4227 usbd_get_page(&sc->sc_hw.devs[index].input_pc, 0, &buf_inp);
4229 xhci_configure_mask(udev, 3, 0);
4231 err = xhci_configure_device(udev);
4233 DPRINTF("Could not configure device "
4234 "at slot %u.\n", index);
4237 err = xhci_cmd_evaluate_ctx(sc, buf_inp.physaddr, index);
4239 DPRINTF("Could not evaluate device "
4240 "context at slot %u.\n", index);
4247 XHCI_CMD_UNLOCK(sc);
4251 xhci_set_endpoint_mode(struct usb_device *udev, struct usb_endpoint *ep,
4255 case USB_EP_MODE_DEFAULT:
4257 case USB_EP_MODE_STREAMS:
4258 if (xhcistreams == 0 ||
4259 (ep->edesc->bmAttributes & UE_XFERTYPE) != UE_BULK ||
4260 udev->speed != USB_SPEED_SUPER)
4261 return (USB_ERR_INVAL);
4264 return (USB_ERR_INVAL);
4268 struct usb_bus_methods xhci_bus_methods = {
4269 .endpoint_init = xhci_ep_init,
4270 .endpoint_uninit = xhci_ep_uninit,
4271 .xfer_setup = xhci_xfer_setup,
4272 .xfer_unsetup = xhci_xfer_unsetup,
4273 .get_dma_delay = xhci_get_dma_delay,
4274 .device_init = xhci_device_init,
4275 .device_uninit = xhci_device_uninit,
4276 .device_resume = xhci_device_resume,
4277 .device_suspend = xhci_device_suspend,
4278 .set_hw_power = xhci_set_hw_power,
4279 .roothub_exec = xhci_roothub_exec,
4280 .xfer_poll = xhci_do_poll,
4281 .start_dma_delay = xhci_start_dma_delay,
4282 .set_address = xhci_set_address,
4283 .clear_stall = xhci_ep_clear_stall,
4284 .device_state_change = xhci_device_state_change,
4285 .set_hw_power_sleep = xhci_set_hw_power_sleep,
4286 .set_endpoint_mode = xhci_set_endpoint_mode,