/* $OpenBSD: uhci.c,v 1.150 2020/03/19 14:18:38 patrick Exp $ */ /* $NetBSD: uhci.c,v 1.172 2003/02/23 04:19:26 simonb Exp $ */ /* $FreeBSD: src/sys/dev/usb/uhci.c,v 1.33 1999/11/17 22:33:41 n_hibma Exp $ */ /* * Copyright (c) 1998 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Lennart Augustsson (lennart@augustsson.net) at * Carlstedt Research & Technology. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include /* Use bandwidth reclamation for control transfers. Some devices choke on it. */ /*#define UHCI_CTL_LOOP */ struct cfdriver uhci_cd = { NULL, "uhci", DV_DULL }; #ifdef UHCI_DEBUG struct uhci_softc *thesc; #define DPRINTF(x) if (uhcidebug) printf x #define DPRINTFN(n,x) if (uhcidebug>(n)) printf x int uhcidebug = 0; int uhcinoloop = 0; #define bitmask_snprintf(q,f,b,l) snprintf((b), (l), "%b", (q), (f)) #else #define DPRINTF(x) #define DPRINTFN(n,x) #endif struct pool *uhcixfer; struct uhci_pipe { struct usbd_pipe pipe; int nexttoggle; union { /* Control pipe */ struct { struct uhci_soft_qh *sqh; struct usb_dma reqdma; struct uhci_soft_td *setup, *stat; u_int length; } ctl; /* Interrupt pipe */ struct { int npoll; int isread; struct uhci_soft_qh **qhs; } intr; /* Bulk pipe */ struct { struct uhci_soft_qh *sqh; u_int length; int isread; } bulk; /* Iso pipe */ struct iso { struct uhci_soft_td **stds; int next, inuse; } iso; } u; }; void uhci_globalreset(struct uhci_softc *); usbd_status uhci_portreset(struct uhci_softc *, int); void uhci_reset(struct uhci_softc *); usbd_status uhci_run(struct uhci_softc *, int run); struct uhci_soft_td *uhci_alloc_std(struct uhci_softc *); void uhci_free_std(struct uhci_softc *, struct uhci_soft_td *); struct uhci_soft_qh *uhci_alloc_sqh(struct uhci_softc *); void uhci_free_sqh(struct uhci_softc *, struct uhci_soft_qh *); void uhci_free_std_chain(struct uhci_softc *, struct uhci_soft_td *, struct uhci_soft_td *); usbd_status uhci_alloc_std_chain(struct uhci_softc *, u_int, struct usbd_xfer *, struct uhci_soft_td **, struct uhci_soft_td **); void uhci_poll_hub(void *); void uhci_check_intr(struct uhci_softc *, struct usbd_xfer *); void uhci_idone(struct usbd_xfer *); void uhci_abort_xfer(struct usbd_xfer *, usbd_status status); void uhci_timeout(void *); void uhci_timeout_task(void *); void uhci_add_ls_ctrl(struct uhci_softc *, struct uhci_soft_qh *); void uhci_add_hs_ctrl(struct uhci_softc *, struct uhci_soft_qh *); void uhci_add_bulk(struct uhci_softc *, struct uhci_soft_qh *); void uhci_remove_ls_ctrl(struct uhci_softc *, struct uhci_soft_qh *); void uhci_remove_hs_ctrl(struct uhci_softc *, struct uhci_soft_qh *); void uhci_remove_bulk(struct uhci_softc *,struct uhci_soft_qh *); void uhci_add_loop(struct uhci_softc *sc); void uhci_rem_loop(struct uhci_softc *sc); usbd_status uhci_setup_isoc(struct usbd_pipe *pipe); void uhci_device_isoc_enter(struct usbd_xfer *); struct usbd_xfer *uhci_allocx(struct usbd_bus *); void uhci_freex(struct usbd_bus *, struct usbd_xfer *); usbd_status uhci_device_ctrl_transfer(struct usbd_xfer *); usbd_status uhci_device_ctrl_start(struct usbd_xfer *); void uhci_device_ctrl_abort(struct usbd_xfer *); void uhci_device_ctrl_close(struct usbd_pipe *); void uhci_device_ctrl_done(struct usbd_xfer *); usbd_status uhci_device_intr_transfer(struct usbd_xfer *); usbd_status uhci_device_intr_start(struct usbd_xfer *); void uhci_device_intr_abort(struct usbd_xfer *); void uhci_device_intr_close(struct usbd_pipe *); void uhci_device_intr_done(struct usbd_xfer *); usbd_status uhci_device_bulk_transfer(struct usbd_xfer *); usbd_status uhci_device_bulk_start(struct usbd_xfer *); void uhci_device_bulk_abort(struct usbd_xfer *); void uhci_device_bulk_close(struct usbd_pipe *); void uhci_device_bulk_done(struct usbd_xfer *); usbd_status uhci_device_isoc_transfer(struct usbd_xfer *); usbd_status uhci_device_isoc_start(struct usbd_xfer *); void uhci_device_isoc_abort(struct usbd_xfer *); void uhci_device_isoc_close(struct usbd_pipe *); void uhci_device_isoc_done(struct usbd_xfer *); usbd_status uhci_root_ctrl_transfer(struct usbd_xfer *); usbd_status uhci_root_ctrl_start(struct usbd_xfer *); void uhci_root_ctrl_abort(struct usbd_xfer *); void uhci_root_ctrl_close(struct usbd_pipe *); void uhci_root_ctrl_done(struct usbd_xfer *); usbd_status uhci_root_intr_transfer(struct usbd_xfer *); usbd_status uhci_root_intr_start(struct usbd_xfer *); void uhci_root_intr_abort(struct usbd_xfer *); void uhci_root_intr_close(struct usbd_pipe *); void uhci_root_intr_done(struct usbd_xfer *); usbd_status uhci_open(struct usbd_pipe *); void uhci_poll(struct usbd_bus *); void uhci_softintr(void *); usbd_status uhci_device_request(struct usbd_xfer *xfer); void uhci_add_intr(struct uhci_softc *, struct uhci_soft_qh *); void uhci_remove_intr(struct uhci_softc *, struct uhci_soft_qh *); usbd_status uhci_device_setintr(struct uhci_softc *sc, struct uhci_pipe *pipe, int ival); void uhci_device_clear_toggle(struct usbd_pipe *pipe); static inline struct uhci_soft_qh *uhci_find_prev_qh(struct uhci_soft_qh *, struct uhci_soft_qh *); #ifdef UHCI_DEBUG void uhci_dump_all(struct uhci_softc *); void uhci_dumpregs(struct uhci_softc *); void uhci_dump_qhs(struct uhci_soft_qh *); void uhci_dump_qh(struct uhci_soft_qh *); void uhci_dump_tds(struct uhci_soft_td *); void uhci_dump_td(struct uhci_soft_td *); void uhci_dump_xfer(struct uhci_xfer *); void uhci_dump(void); #endif #define UBARR(sc) bus_space_barrier((sc)->iot, (sc)->ioh, 0, (sc)->sc_size, \ BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE) #define UWRITE1(sc, r, x) \ do { UBARR(sc); bus_space_write_1((sc)->iot, (sc)->ioh, (r), (x)); \ } while (/*CONSTCOND*/0) #define UWRITE2(sc, r, x) \ do { UBARR(sc); bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)); \ } while (/*CONSTCOND*/0) #define UWRITE4(sc, r, x) \ do { UBARR(sc); bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)); \ } while (/*CONSTCOND*/0) __unused static __inline u_int8_t UREAD1(struct uhci_softc *sc, bus_size_t r) { UBARR(sc); return bus_space_read_1(sc->iot, sc->ioh, r); } __unused static __inline u_int16_t UREAD2(struct uhci_softc *sc, bus_size_t r) { UBARR(sc); return bus_space_read_2(sc->iot, sc->ioh, r); } __unused static __inline u_int32_t UREAD4(struct uhci_softc *sc, bus_size_t r) { UBARR(sc); return bus_space_read_4(sc->iot, sc->ioh, r); } #define UHCICMD(sc, cmd) UWRITE2(sc, UHCI_CMD, cmd) #define UHCISTS(sc) UREAD2(sc, UHCI_STS) #define UHCI_RESET_TIMEOUT 100 /* ms, reset timeout */ #define UHCI_CURFRAME(sc) (UREAD2(sc, UHCI_FRNUM) & UHCI_FRNUM_MASK) #define UHCI_INTR_ENDPT 1 struct usbd_bus_methods uhci_bus_methods = { .open_pipe = uhci_open, .dev_setaddr = usbd_set_address, .soft_intr = uhci_softintr, .do_poll = uhci_poll, .allocx = uhci_allocx, .freex = uhci_freex, }; struct usbd_pipe_methods uhci_root_ctrl_methods = { .transfer = uhci_root_ctrl_transfer, .start = uhci_root_ctrl_start, .abort = uhci_root_ctrl_abort, .close = uhci_root_ctrl_close, .done = uhci_root_ctrl_done, }; struct usbd_pipe_methods uhci_root_intr_methods = { .transfer = uhci_root_intr_transfer, .start = uhci_root_intr_start, .abort = uhci_root_intr_abort, .close = uhci_root_intr_close, .done = uhci_root_intr_done, }; struct usbd_pipe_methods uhci_device_ctrl_methods = { .transfer = uhci_device_ctrl_transfer, .start = uhci_device_ctrl_start, .abort = uhci_device_ctrl_abort, .close = uhci_device_ctrl_close, .done = uhci_device_ctrl_done, }; struct usbd_pipe_methods uhci_device_intr_methods = { .transfer = uhci_device_intr_transfer, .start = uhci_device_intr_start, .abort = uhci_device_intr_abort, .close = uhci_device_intr_close, .cleartoggle = uhci_device_clear_toggle, .done = uhci_device_intr_done, }; struct usbd_pipe_methods uhci_device_bulk_methods = { .transfer = uhci_device_bulk_transfer, .start = uhci_device_bulk_start, .abort = uhci_device_bulk_abort, .close = uhci_device_bulk_close, .cleartoggle = uhci_device_clear_toggle, .done = uhci_device_bulk_done, }; struct usbd_pipe_methods uhci_device_isoc_methods = { .transfer = uhci_device_isoc_transfer, .start = uhci_device_isoc_start, .abort = uhci_device_isoc_abort, .close = uhci_device_isoc_close, .done = uhci_device_isoc_done, }; #define uhci_add_intr_list(sc, ex) \ LIST_INSERT_HEAD(&(sc)->sc_intrhead, (ex), inext) #define uhci_del_intr_list(ex) \ do { \ LIST_REMOVE((ex), inext); \ (ex)->inext.le_prev = NULL; \ } while (0) #define uhci_active_intr_list(ex) ((ex)->inext.le_prev != NULL) static inline struct uhci_soft_qh * uhci_find_prev_qh(struct uhci_soft_qh *pqh, struct uhci_soft_qh *sqh) { DPRINTFN(15,("uhci_find_prev_qh: pqh=%p sqh=%p\n", pqh, sqh)); for (; pqh->hlink != sqh; pqh = pqh->hlink) { #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) if (letoh32(pqh->qh.qh_hlink) & UHCI_PTR_T) { printf("uhci_find_prev_qh: QH not found\n"); return (NULL); } #endif } return (pqh); } void uhci_globalreset(struct uhci_softc *sc) { UHCICMD(sc, UHCI_CMD_GRESET); /* global reset */ usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); /* wait a little */ UHCICMD(sc, 0); /* do nothing */ } usbd_status uhci_init(struct uhci_softc *sc) { usbd_status err; int i, j; struct uhci_soft_qh *clsqh, *chsqh, *bsqh, *sqh, *lsqh; struct uhci_soft_td *std; DPRINTFN(1,("uhci_init: start\n")); #ifdef UHCI_DEBUG thesc = sc; if (uhcidebug > 2) uhci_dumpregs(sc); #endif /* Save SOF over HC reset. */ sc->sc_saved_sof = UREAD1(sc, UHCI_SOF); UWRITE2(sc, UHCI_INTR, 0); /* disable interrupts */ uhci_globalreset(sc); /* reset the controller */ uhci_reset(sc); if (uhcixfer == NULL) { uhcixfer = malloc(sizeof(struct pool), M_DEVBUF, M_NOWAIT); if (uhcixfer == NULL) { printf("%s: unable to allocate pool descriptor\n", sc->sc_bus.bdev.dv_xname); return (ENOMEM); } pool_init(uhcixfer, sizeof(struct uhci_xfer), 0, IPL_SOFTUSB, 0, "uhcixfer", NULL); } /* Restore saved SOF. */ UWRITE1(sc, UHCI_SOF, sc->sc_saved_sof); /* Allocate and initialize real frame array. */ sc->sc_dma.flags |= USB_DMA_COHERENT; err = usb_allocmem(&sc->sc_bus, UHCI_FRAMELIST_COUNT * sizeof(uhci_physaddr_t), UHCI_FRAMELIST_ALIGN, &sc->sc_dma); if (err) return (err); sc->sc_pframes = KERNADDR(&sc->sc_dma, 0); UWRITE2(sc, UHCI_FRNUM, 0); /* set frame number to 0 */ UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma, 0)); /* set frame list*/ /* * Allocate a TD, inactive, that hangs from the last QH. * This is to avoid a bug in the PIIX that makes it run berserk * otherwise. */ std = uhci_alloc_std(sc); if (std == NULL) return (USBD_NOMEM); std->link.std = NULL; std->td.td_link = htole32(UHCI_PTR_T); std->td.td_status = htole32(0); /* inactive */ std->td.td_token = htole32(0); std->td.td_buffer = htole32(0); /* Allocate the dummy QH marking the end and used for looping the QHs.*/ lsqh = uhci_alloc_sqh(sc); if (lsqh == NULL) return (USBD_NOMEM); lsqh->hlink = NULL; lsqh->qh.qh_hlink = htole32(UHCI_PTR_T); /* end of QH chain */ lsqh->elink = std; lsqh->qh.qh_elink = htole32(std->physaddr | UHCI_PTR_TD); sc->sc_last_qh = lsqh; /* Allocate the dummy QH where bulk traffic will be queued. */ bsqh = uhci_alloc_sqh(sc); if (bsqh == NULL) return (USBD_NOMEM); bsqh->hlink = lsqh; bsqh->qh.qh_hlink = htole32(lsqh->physaddr | UHCI_PTR_QH); bsqh->elink = NULL; bsqh->qh.qh_elink = htole32(UHCI_PTR_T); sc->sc_bulk_start = sc->sc_bulk_end = bsqh; /* Allocate dummy QH where high speed control traffic will be queued. */ chsqh = uhci_alloc_sqh(sc); if (chsqh == NULL) return (USBD_NOMEM); chsqh->hlink = bsqh; chsqh->qh.qh_hlink = htole32(bsqh->physaddr | UHCI_PTR_QH); chsqh->elink = NULL; chsqh->qh.qh_elink = htole32(UHCI_PTR_T); sc->sc_hctl_start = sc->sc_hctl_end = chsqh; /* Allocate dummy QH where control traffic will be queued. */ clsqh = uhci_alloc_sqh(sc); if (clsqh == NULL) return (USBD_NOMEM); clsqh->hlink = chsqh; clsqh->qh.qh_hlink = htole32(chsqh->physaddr | UHCI_PTR_QH); clsqh->elink = NULL; clsqh->qh.qh_elink = htole32(UHCI_PTR_T); sc->sc_lctl_start = sc->sc_lctl_end = clsqh; /* * Make all (virtual) frame list pointers point to the interrupt * queue heads and the interrupt queue heads at the control * queue head and point the physical frame list to the virtual. */ for(i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { std = uhci_alloc_std(sc); sqh = uhci_alloc_sqh(sc); if (std == NULL || sqh == NULL) return (USBD_NOMEM); std->link.sqh = sqh; std->td.td_link = htole32(sqh->physaddr | UHCI_PTR_QH); std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ std->td.td_token = htole32(0); std->td.td_buffer = htole32(0); sqh->hlink = clsqh; sqh->qh.qh_hlink = htole32(clsqh->physaddr | UHCI_PTR_QH); sqh->elink = NULL; sqh->qh.qh_elink = htole32(UHCI_PTR_T); sc->sc_vframes[i].htd = std; sc->sc_vframes[i].etd = std; sc->sc_vframes[i].hqh = sqh; sc->sc_vframes[i].eqh = sqh; for (j = i; j < UHCI_FRAMELIST_COUNT; j += UHCI_VFRAMELIST_COUNT) sc->sc_pframes[j] = htole32(std->physaddr); } LIST_INIT(&sc->sc_intrhead); timeout_set(&sc->sc_root_intr, uhci_poll_hub, sc); /* Set up the bus struct. */ sc->sc_bus.methods = &uhci_bus_methods; sc->sc_bus.pipe_size = sizeof(struct uhci_pipe); sc->sc_suspend = DVACT_RESUME; UHCICMD(sc, UHCI_CMD_MAXP); /* Assume 64 byte packets at frame end */ DPRINTFN(1,("uhci_init: enabling\n")); UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* enable interrupts */ return (uhci_run(sc, 1)); /* and here we go... */ } int uhci_activate(struct device *self, int act) { struct uhci_softc *sc = (struct uhci_softc *)self; int cmd, rv = 0; switch (act) { case DVACT_SUSPEND: #ifdef UHCI_DEBUG if (uhcidebug > 2) uhci_dumpregs(sc); #endif rv = config_activate_children(self, act); sc->sc_bus.use_polling++; uhci_run(sc, 0); /* stop the controller */ /* save some state if BIOS doesn't */ sc->sc_saved_frnum = UREAD2(sc, UHCI_FRNUM); UWRITE2(sc, UHCI_INTR, 0); /* disable intrs */ cmd = UREAD2(sc, UHCI_CMD); UHCICMD(sc, cmd | UHCI_CMD_EGSM); /* enter global suspend */ usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); sc->sc_suspend = act; sc->sc_bus.use_polling--; DPRINTF(("uhci_activate: cmd=0x%x\n", UREAD2(sc, UHCI_CMD))); break; case DVACT_POWERDOWN: rv = config_activate_children(self, act); uhci_run(sc, 0); /* stop the controller */ break; case DVACT_RESUME: #ifdef DIAGNOSTIC if (sc->sc_suspend == DVACT_RESUME) printf("uhci_powerhook: weird, resume without suspend.\n"); #endif sc->sc_bus.use_polling++; sc->sc_suspend = act; cmd = UREAD2(sc, UHCI_CMD); if (cmd & UHCI_CMD_RS) uhci_run(sc, 0); /* in case BIOS has started it */ /* restore saved state */ UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma, 0)); UWRITE2(sc, UHCI_FRNUM, sc->sc_saved_frnum); UWRITE1(sc, UHCI_SOF, sc->sc_saved_sof); UHCICMD(sc, cmd | UHCI_CMD_FGR); /* force global resume */ usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); UHCICMD(sc, cmd & ~UHCI_CMD_EGSM); /* back to normal */ UHCICMD(sc, UHCI_CMD_MAXP); UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* re-enable intrs */ uhci_run(sc, 1); /* and start traffic again */ usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); sc->sc_bus.use_polling--; #ifdef UHCI_DEBUG if (uhcidebug > 2) uhci_dumpregs(sc); #endif rv = config_activate_children(self, act); break; default: rv = config_activate_children(self, act); break; } return (rv); } int uhci_detach(struct device *self, int flags) { #ifdef DIAGNOSTIC struct uhci_softc *sc = (struct uhci_softc *)self; #endif int rv; rv = config_detach_children(self, flags); if (rv != 0) return (rv); KASSERT(sc->sc_intrxfer == NULL); /* XXX free other data structures XXX */ return (rv); } struct usbd_xfer * uhci_allocx(struct usbd_bus *bus) { struct uhci_xfer *ux; ux = pool_get(uhcixfer, PR_NOWAIT | PR_ZERO); #ifdef DIAGNOSTIC if (ux != NULL) ux->isdone = 1; #endif return ((struct usbd_xfer *)ux); } void uhci_freex(struct usbd_bus *bus, struct usbd_xfer *xfer) { struct uhci_xfer *ux = (struct uhci_xfer*)xfer; #ifdef DIAGNOSTIC if (!ux->isdone) { printf("%s: !isdone\n", __func__); return; } #endif pool_put(uhcixfer, ux); } #ifdef UHCI_DEBUG void uhci_dumpregs(struct uhci_softc *sc) { DPRINTFN(-1,("%s regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, " "flbase=%08x, sof=%04x, portsc1=%04x, portsc2=%04x\n", sc->sc_bus.bdev.dv_xname, UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS), UREAD2(sc, UHCI_INTR), UREAD2(sc, UHCI_FRNUM), UREAD4(sc, UHCI_FLBASEADDR), UREAD1(sc, UHCI_SOF), UREAD2(sc, UHCI_PORTSC1), UREAD2(sc, UHCI_PORTSC2))); } void uhci_dump_td(struct uhci_soft_td *p) { char sbuf[128], sbuf2[128]; DPRINTFN(-1,("TD(%p) at %08lx = link=0x%08lx status=0x%08lx " "token=0x%08lx buffer=0x%08lx\n", p, (long)p->physaddr, (long)letoh32(p->td.td_link), (long)letoh32(p->td.td_status), (long)letoh32(p->td.td_token), (long)letoh32(p->td.td_buffer))); bitmask_snprintf((u_int32_t)letoh32(p->td.td_link), "\20\1T\2Q\3VF", sbuf, sizeof(sbuf)); bitmask_snprintf((u_int32_t)letoh32(p->td.td_status), "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" "STALLED\30ACTIVE\31IOC\32ISO\33LS\36SPD", sbuf2, sizeof(sbuf2)); DPRINTFN(-1,(" %s %s,errcnt=%d,actlen=%d pid=%02x,addr=%d,endpt=%d," "D=%d,maxlen=%d\n", sbuf, sbuf2, UHCI_TD_GET_ERRCNT(letoh32(p->td.td_status)), UHCI_TD_GET_ACTLEN(letoh32(p->td.td_status)), UHCI_TD_GET_PID(letoh32(p->td.td_token)), UHCI_TD_GET_DEVADDR(letoh32(p->td.td_token)), UHCI_TD_GET_ENDPT(letoh32(p->td.td_token)), UHCI_TD_GET_DT(letoh32(p->td.td_token)), UHCI_TD_GET_MAXLEN(letoh32(p->td.td_token)))); } void uhci_dump_qh(struct uhci_soft_qh *sqh) { DPRINTFN(-1,("QH(%p) at %08x: hlink=%08x elink=%08x\n", sqh, (int)sqh->physaddr, letoh32(sqh->qh.qh_hlink), letoh32(sqh->qh.qh_elink))); } void uhci_dump(void) { uhci_dump_all(thesc); } void uhci_dump_all(struct uhci_softc *sc) { uhci_dumpregs(sc); printf("intrs=%d\n", sc->sc_bus.no_intrs); /*printf("framelist[i].link = %08x\n", sc->sc_framelist[0].link);*/ uhci_dump_qh(sc->sc_lctl_start); } void uhci_dump_qhs(struct uhci_soft_qh *sqh) { uhci_dump_qh(sqh); /* uhci_dump_qhs displays all the QHs and TDs from the given QH onwards * Traverses sideways first, then down. * * QH1 * QH2 * No QH * TD2.1 * TD2.2 * TD1.1 * etc. * * TD2.x being the TDs queued at QH2 and QH1 being referenced from QH1. */ if (sqh->hlink != NULL && !(letoh32(sqh->qh.qh_hlink) & UHCI_PTR_T)) uhci_dump_qhs(sqh->hlink); else DPRINTF(("No QH\n")); if (sqh->elink != NULL && !(letoh32(sqh->qh.qh_elink) & UHCI_PTR_T)) uhci_dump_tds(sqh->elink); else DPRINTF(("No TD\n")); } void uhci_dump_tds(struct uhci_soft_td *std) { struct uhci_soft_td *td; for(td = std; td != NULL; td = td->link.std) { uhci_dump_td(td); /* Check whether the link pointer in this TD marks * the link pointer as end of queue. This avoids * printing the free list in case the queue/TD has * already been moved there (seatbelt). */ if (letoh32(td->td.td_link) & UHCI_PTR_T || letoh32(td->td.td_link) == 0) break; } } void uhci_dump_xfer(struct uhci_xfer *ex) { struct usbd_pipe *pipe; usb_endpoint_descriptor_t *ed; struct usbd_device *dev; #ifdef DIAGNOSTIC #define DONE ex->isdone #else #define DONE 0 #endif if (ex == NULL) { printf("ex NULL\n"); return; } pipe = ex->xfer.pipe; if (pipe == NULL) { printf("ex %p: done=%d pipe=NULL\n", ex, DONE); return; } if (pipe->endpoint == NULL) { printf("ex %p: done=%d pipe=%p pipe->endpoint=NULL\n", ex, DONE, pipe); return; } if (pipe->device == NULL) { printf("ex %p: done=%d pipe=%p pipe->device=NULL\n", ex, DONE, pipe); return; } ed = pipe->endpoint->edesc; dev = pipe->device; printf("ex %p: done=%d dev=%p vid=0x%04x pid=0x%04x addr=%d pipe=%p ep=0x%02x attr=0x%02x\n", ex, DONE, dev, UGETW(dev->ddesc.idVendor), UGETW(dev->ddesc.idProduct), dev->address, pipe, ed->bEndpointAddress, ed->bmAttributes); #undef DONE } void uhci_dump_xfers(struct uhci_softc *sc); void uhci_dump_xfers(struct uhci_softc *sc) { struct uhci_xfer *ex; printf("ex list:\n"); for (ex = LIST_FIRST(&sc->sc_intrhead); ex; ex = LIST_NEXT(ex, inext)) uhci_dump_xfer(ex); } void exdump(void); void exdump(void) { uhci_dump_xfers(thesc); } #endif /* * This routine is executed periodically and simulates interrupts * from the root controller interrupt pipe for port status change. */ void uhci_poll_hub(void *addr) { struct uhci_softc *sc = addr; struct usbd_xfer *xfer; int s; u_char *p; if (sc->sc_bus.dying) return; xfer = sc->sc_intrxfer; if (xfer == NULL) return; p = KERNADDR(&xfer->dmabuf, 0); p[0] = 0; if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) p[0] |= 1<<1; if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) p[0] |= 1<<2; if (p[0] == 0) { /* No change, try again in a while */ timeout_add_msec(&sc->sc_root_intr, 255); return; } xfer->actlen = xfer->length; xfer->status = USBD_NORMAL_COMPLETION; s = splusb(); xfer->device->bus->intr_context++; usb_transfer_complete(xfer); xfer->device->bus->intr_context--; splx(s); } void uhci_root_ctrl_done(struct usbd_xfer *xfer) { } /* * Let the last QH loop back to the high speed control transfer QH. * This is what intel calls "bandwidth reclamation" and improves * USB performance a lot for some devices. * If we are already looping, just count it. */ void uhci_add_loop(struct uhci_softc *sc) { #ifdef UHCI_DEBUG if (uhcinoloop) return; #endif if (++sc->sc_loops == 1) { DPRINTFN(5,("uhci_add_loop\n")); /* Note, we don't loop back the soft pointer. */ sc->sc_last_qh->qh.qh_hlink = htole32(sc->sc_hctl_start->physaddr | UHCI_PTR_QH); } } void uhci_rem_loop(struct uhci_softc *sc) { #ifdef UHCI_DEBUG if (uhcinoloop) return; #endif if (--sc->sc_loops == 0) { DPRINTFN(5,("uhci_rem_loop\n")); sc->sc_last_qh->qh.qh_hlink = htole32(UHCI_PTR_T); } } /* Add high speed control QH, called at splusb(). */ void uhci_add_hs_ctrl(struct uhci_softc *sc, struct uhci_soft_qh *sqh) { struct uhci_soft_qh *eqh; splsoftassert(IPL_SOFTUSB); DPRINTFN(10, ("uhci_add_hs_ctrl: sqh=%p\n", sqh)); eqh = sc->sc_hctl_end; sqh->hlink = eqh->hlink; sqh->qh.qh_hlink = eqh->qh.qh_hlink; eqh->hlink = sqh; eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); sc->sc_hctl_end = sqh; #ifdef UHCI_CTL_LOOP uhci_add_loop(sc); #endif } /* Remove high speed control QH, called at splusb(). */ void uhci_remove_hs_ctrl(struct uhci_softc *sc, struct uhci_soft_qh *sqh) { struct uhci_soft_qh *pqh; splsoftassert(IPL_SOFTUSB); DPRINTFN(10, ("uhci_remove_hs_ctrl: sqh=%p\n", sqh)); #ifdef UHCI_CTL_LOOP uhci_rem_loop(sc); #endif /* * The T bit should be set in the elink of the QH so that the HC * doesn't follow the pointer. This condition may fail if the * the transferred packet was short so that the QH still points * at the last used TD. * In this case we set the T bit and wait a little for the HC * to stop looking at the TD. */ if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { sqh->qh.qh_elink = htole32(UHCI_PTR_T); delay(UHCI_QH_REMOVE_DELAY); } pqh = uhci_find_prev_qh(sc->sc_hctl_start, sqh); pqh->hlink = sqh->hlink; pqh->qh.qh_hlink = sqh->qh.qh_hlink; delay(UHCI_QH_REMOVE_DELAY); if (sc->sc_hctl_end == sqh) sc->sc_hctl_end = pqh; } /* Add low speed control QH, called at splusb(). */ void uhci_add_ls_ctrl(struct uhci_softc *sc, struct uhci_soft_qh *sqh) { struct uhci_soft_qh *eqh; splsoftassert(IPL_SOFTUSB); DPRINTFN(10, ("uhci_add_ls_ctrl: sqh=%p\n", sqh)); eqh = sc->sc_lctl_end; sqh->hlink = eqh->hlink; sqh->qh.qh_hlink = eqh->qh.qh_hlink; eqh->hlink = sqh; eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); sc->sc_lctl_end = sqh; } /* Remove low speed control QH, called at splusb(). */ void uhci_remove_ls_ctrl(struct uhci_softc *sc, struct uhci_soft_qh *sqh) { struct uhci_soft_qh *pqh; splsoftassert(IPL_SOFTUSB); DPRINTFN(10, ("uhci_remove_ls_ctrl: sqh=%p\n", sqh)); /* See comment in uhci_remove_hs_ctrl() */ if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { sqh->qh.qh_elink = htole32(UHCI_PTR_T); delay(UHCI_QH_REMOVE_DELAY); } pqh = uhci_find_prev_qh(sc->sc_lctl_start, sqh); pqh->hlink = sqh->hlink; pqh->qh.qh_hlink = sqh->qh.qh_hlink; delay(UHCI_QH_REMOVE_DELAY); if (sc->sc_lctl_end == sqh) sc->sc_lctl_end = pqh; } /* Add bulk QH, called at splusb(). */ void uhci_add_bulk(struct uhci_softc *sc, struct uhci_soft_qh *sqh) { struct uhci_soft_qh *eqh; splsoftassert(IPL_SOFTUSB); DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh)); eqh = sc->sc_bulk_end; sqh->hlink = eqh->hlink; sqh->qh.qh_hlink = eqh->qh.qh_hlink; eqh->hlink = sqh; eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); sc->sc_bulk_end = sqh; uhci_add_loop(sc); } /* Remove bulk QH, called at splusb(). */ void uhci_remove_bulk(struct uhci_softc *sc, struct uhci_soft_qh *sqh) { struct uhci_soft_qh *pqh; splsoftassert(IPL_SOFTUSB); DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh)); uhci_rem_loop(sc); /* See comment in uhci_remove_hs_ctrl() */ if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { sqh->qh.qh_elink = htole32(UHCI_PTR_T); delay(UHCI_QH_REMOVE_DELAY); } pqh = uhci_find_prev_qh(sc->sc_bulk_start, sqh); pqh->hlink = sqh->hlink; pqh->qh.qh_hlink = sqh->qh.qh_hlink; delay(UHCI_QH_REMOVE_DELAY); if (sc->sc_bulk_end == sqh) sc->sc_bulk_end = pqh; } int uhci_intr1(struct uhci_softc *); int uhci_intr(void *arg) { struct uhci_softc *sc = arg; if (sc->sc_bus.dying) return (0); if (sc->sc_bus.use_polling) return (0); return (uhci_intr1(sc)); } int uhci_intr1(struct uhci_softc *sc) { int status; int ack; status = UREAD2(sc, UHCI_STS); if (status == 0xffff) { sc->sc_bus.dying = 1; return (0); } status &= UHCI_STS_ALLINTRS; if (status == 0) /* The interrupt was not for us. */ return (0); #ifdef UHCI_DEBUG if (uhcidebug > 15) { DPRINTF(("%s: uhci_intr1\n", sc->sc_bus.bdev.dv_xname)); uhci_dumpregs(sc); } #endif if (sc->sc_suspend != DVACT_RESUME) { printf("%s: interrupt while not operating ignored\n", sc->sc_bus.bdev.dv_xname); return (0); } ack = 0; if (status & UHCI_STS_USBINT) ack |= UHCI_STS_USBINT; if (status & UHCI_STS_USBEI) ack |= UHCI_STS_USBEI; if (status & UHCI_STS_RD) { ack |= UHCI_STS_RD; #ifdef UHCI_DEBUG printf("%s: resume detect\n", sc->sc_bus.bdev.dv_xname); #endif } if (status & UHCI_STS_HSE) { ack |= UHCI_STS_HSE; printf("%s: host system error\n", sc->sc_bus.bdev.dv_xname); } if (status & UHCI_STS_HCPE) { ack |= UHCI_STS_HCPE; printf("%s: host controller process error\n", sc->sc_bus.bdev.dv_xname); } if (status & UHCI_STS_HCH) { /* no acknowledge needed */ if (!sc->sc_bus.dying) { printf("%s: host controller halted\n", sc->sc_bus.bdev.dv_xname); #ifdef UHCI_DEBUG uhci_dump_all(sc); #endif } sc->sc_bus.dying = 1; } if (!ack) return (0); /* nothing to acknowledge */ UWRITE2(sc, UHCI_STS, ack); /* acknowledge the ints */ sc->sc_bus.no_intrs++; usb_schedsoftintr(&sc->sc_bus); DPRINTFN(15, ("%s: uhci_intr1: exit\n", sc->sc_bus.bdev.dv_xname)); return (1); } void uhci_softintr(void *v) { struct uhci_softc *sc = v; struct uhci_xfer *ux, *nextex; DPRINTFN(10,("%s: uhci_softintr (%d)\n", sc->sc_bus.bdev.dv_xname, sc->sc_bus.intr_context)); if (sc->sc_bus.dying) return; sc->sc_bus.intr_context++; /* * Interrupts on UHCI really suck. When the host controller * interrupts because a transfer is completed there is no * way of knowing which transfer it was. You can scan down * the TDs and QHs of the previous frame to limit the search, * but that assumes that the interrupt was not delayed by more * than 1 ms, which may not always be true (e.g. after debug * output on a slow console). * We scan all interrupt descriptors to see if any have * completed. */ for (ux = LIST_FIRST(&sc->sc_intrhead); ux; ux = nextex) { nextex = LIST_NEXT(ux, inext); uhci_check_intr(sc, &ux->xfer); } if (sc->sc_softwake) { sc->sc_softwake = 0; wakeup(&sc->sc_softwake); } sc->sc_bus.intr_context--; } void uhci_check_intr(struct uhci_softc *sc, struct usbd_xfer *xfer) { struct uhci_xfer *ux = (struct uhci_xfer *)xfer; struct uhci_soft_td *std, *lstd; u_int32_t status; DPRINTFN(15, ("%s: ux=%p\n", __func__, ux)); #ifdef DIAGNOSTIC if (ux == NULL) { printf("%s: no ux? %p\n", __func__, ux); return; } #endif if (xfer->status == USBD_CANCELLED || xfer->status == USBD_TIMEOUT) { DPRINTF(("%s: aborted xfer=%p\n", __func__, xfer)); return; } if (ux->stdstart == NULL) return; lstd = ux->stdend; #ifdef DIAGNOSTIC if (lstd == NULL) { printf("%s: std==0\n", __func__); return; } #endif /* * If the last TD is still active we need to check whether there * is an error somewhere in the middle, or whether there was a * short packet (SPD and not ACTIVE). */ if (letoh32(lstd->td.td_status) & UHCI_TD_ACTIVE) { DPRINTFN(12, ("%s: active ux=%p\n", __func__, ux)); for (std = ux->stdstart; std != lstd; std = std->link.std) { status = letoh32(std->td.td_status); /* If there's an active TD the xfer isn't done. */ if (status & UHCI_TD_ACTIVE) break; /* Any kind of error makes the xfer done. */ if (status & UHCI_TD_STALLED) goto done; /* We want short packets, and it is short: it's done */ if ((status & UHCI_TD_SPD) && UHCI_TD_GET_ACTLEN(status) < UHCI_TD_GET_MAXLEN(letoh32(std->td.td_token))) goto done; } DPRINTFN(12, ("%s: ux=%p std=%p still active\n", __func__, ux, ux->stdstart)); return; } done: DPRINTFN(12, ("uhci_check_intr: ux=%p done\n", ux)); timeout_del(&xfer->timeout_handle); usb_rem_task(xfer->pipe->device, &xfer->abort_task); uhci_idone(xfer); } /* Called at splusb() */ void uhci_idone(struct usbd_xfer *xfer) { struct uhci_xfer *ux = (struct uhci_xfer *)xfer; struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; struct uhci_soft_td *std; u_int32_t status = 0, nstatus; int actlen; DPRINTFN(12, ("uhci_idone: ux=%p\n", ux)); #ifdef DIAGNOSTIC { int s = splhigh(); if (ux->isdone) { splx(s); #ifdef UHCI_DEBUG printf("uhci_idone: ux is done!\n "); uhci_dump_xfer(ux); #else printf("uhci_idone: ux=%p is done!\n", ux); #endif return; } ux->isdone = 1; splx(s); } #endif if (xfer->nframes != 0) { /* Isoc transfer, do things differently. */ struct uhci_soft_td **stds = upipe->u.iso.stds; int i, n, nframes, len; DPRINTFN(5,("uhci_idone: ux=%p isoc ready\n", ux)); nframes = xfer->nframes; actlen = 0; n = ux->curframe; for (i = 0; i < nframes; i++) { std = stds[n]; #ifdef UHCI_DEBUG if (uhcidebug > 5) { DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); uhci_dump_td(std); } #endif if (++n >= UHCI_VFRAMELIST_COUNT) n = 0; status = letoh32(std->td.td_status); len = UHCI_TD_GET_ACTLEN(status); xfer->frlengths[i] = len; actlen += len; } upipe->u.iso.inuse -= nframes; xfer->actlen = actlen; xfer->status = USBD_NORMAL_COMPLETION; goto end; } #ifdef UHCI_DEBUG DPRINTFN(10, ("uhci_idone: ux=%p, xfer=%p, pipe=%p ready\n", ux, xfer, upipe)); if (uhcidebug > 10) uhci_dump_tds(ux->stdstart); #endif /* The transfer is done, compute actual length and status. */ actlen = 0; for (std = ux->stdstart; std != NULL; std = std->link.std) { nstatus = letoh32(std->td.td_status); if (nstatus & UHCI_TD_ACTIVE) break; status = nstatus; if (UHCI_TD_GET_PID(letoh32(std->td.td_token)) != UHCI_TD_PID_SETUP) actlen += UHCI_TD_GET_ACTLEN(status); else { /* * UHCI will report CRCTO in addition to a STALL or NAK * for a SETUP transaction. See section 3.2.2, "TD * CONTROL AND STATUS". */ if (status & (UHCI_TD_STALLED | UHCI_TD_NAK)) status &= ~UHCI_TD_CRCTO; } } /* If there are left over TDs we need to update the toggle. */ if (std != NULL) upipe->nexttoggle = UHCI_TD_GET_DT(letoh32(std->td.td_token)); status &= UHCI_TD_ERROR; DPRINTFN(10, ("uhci_idone: actlen=%d, status=0x%x\n", actlen, status)); xfer->actlen = actlen; if (status != 0) { #ifdef UHCI_DEBUG char sbuf[128]; bitmask_snprintf((u_int32_t)status, "\20\22BITSTUFF\23CRCTO\24NAK\25" "BABBLE\26DBUFFER\27STALLED\30ACTIVE", sbuf, sizeof(sbuf)); DPRINTFN((status == UHCI_TD_STALLED)*10, ("uhci_idone: error, addr=%d, endpt=0x%02x, " "status 0x%s\n", xfer->device->address, xfer->pipe->endpoint->edesc->bEndpointAddress, sbuf)); #endif if (status == UHCI_TD_STALLED) xfer->status = USBD_STALLED; else xfer->status = USBD_IOERROR; /* more info XXX */ } else { xfer->status = USBD_NORMAL_COMPLETION; } end: usb_transfer_complete(xfer); DPRINTFN(12, ("uhci_idone: ux=%p done\n", ux)); } void uhci_timeout(void *addr) { struct usbd_xfer *xfer = addr; struct uhci_softc *sc = (struct uhci_softc *)xfer->device->bus; if (sc->sc_bus.dying) { uhci_timeout_task(addr); return; } usb_init_task(&xfer->abort_task, uhci_timeout_task, addr, USB_TASK_TYPE_ABORT); usb_add_task(xfer->device, &xfer->abort_task); } void uhci_timeout_task(void *addr) { struct usbd_xfer *xfer = addr; int s; DPRINTF(("%s: xfer=%p\n", __func__, xfer)); s = splusb(); uhci_abort_xfer(xfer, USBD_TIMEOUT); splx(s); } void uhci_poll(struct usbd_bus *bus) { struct uhci_softc *sc = (struct uhci_softc *)bus; if (UREAD2(sc, UHCI_STS) & UHCI_STS_ALLINTRS) uhci_intr1(sc); } void uhci_reset(struct uhci_softc *sc) { int n; UHCICMD(sc, UHCI_CMD_HCRESET); /* The reset bit goes low when the controller is done. */ for (n = 0; n < UHCI_RESET_TIMEOUT && (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) usb_delay_ms(&sc->sc_bus, 1); if (n >= UHCI_RESET_TIMEOUT) printf("%s: controller did not reset\n", sc->sc_bus.bdev.dv_xname); } usbd_status uhci_run(struct uhci_softc *sc, int run) { int s, n, running; u_int16_t cmd; run = run != 0; s = splhardusb(); DPRINTF(("uhci_run: setting run=%d\n", run)); cmd = UREAD2(sc, UHCI_CMD); if (run) cmd |= UHCI_CMD_RS; else cmd &= ~UHCI_CMD_RS; UHCICMD(sc, cmd); for(n = 0; n < 10; n++) { running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); /* return when we've entered the state we want */ if (run == running) { splx(s); DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); return (USBD_NORMAL_COMPLETION); } usb_delay_ms(&sc->sc_bus, 1); } splx(s); printf("%s: cannot %s\n", sc->sc_bus.bdev.dv_xname, run ? "start" : "stop"); return (USBD_IOERROR); } /* * Memory management routines. * uhci_alloc_std allocates TDs * uhci_alloc_sqh allocates QHs * These two routines do their own free list management, * partly for speed, partly because allocating DMAable memory * has page size granularaity so much memory would be wasted if * only one TD/QH (32 bytes) was placed in each allocated chunk. */ struct uhci_soft_td * uhci_alloc_std(struct uhci_softc *sc) { struct uhci_soft_td *std = NULL; usbd_status err; int i, offs; struct usb_dma dma; int s; s = splusb(); if (sc->sc_freetds == NULL) { DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); dma.flags |= USB_DMA_COHERENT; err = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, UHCI_TD_ALIGN, &dma); if (err) goto out; for(i = 0; i < UHCI_STD_CHUNK; i++) { offs = i * UHCI_STD_SIZE; std = KERNADDR(&dma, offs); std->physaddr = DMAADDR(&dma, offs); std->link.std = sc->sc_freetds; sc->sc_freetds = std; } } std = sc->sc_freetds; sc->sc_freetds = std->link.std; memset(&std->td, 0, sizeof(struct uhci_td)); out: splx(s); return (std); } void uhci_free_std(struct uhci_softc *sc, struct uhci_soft_td *std) { int s; #ifdef DIAGNOSTIC #define TD_IS_FREE 0x12345678 if (letoh32(std->td.td_token) == TD_IS_FREE) { printf("uhci_free_std: freeing free TD %p\n", std); return; } std->td.td_token = htole32(TD_IS_FREE); #endif s = splusb(); std->link.std = sc->sc_freetds; sc->sc_freetds = std; splx(s); } struct uhci_soft_qh * uhci_alloc_sqh(struct uhci_softc *sc) { struct uhci_soft_qh *sqh = NULL; usbd_status err; int i, offs; struct usb_dma dma; int s; s = splusb(); if (sc->sc_freeqhs == NULL) { DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); dma.flags |= USB_DMA_COHERENT; err = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, UHCI_QH_ALIGN, &dma); if (err) goto out; for (i = 0; i < UHCI_SQH_CHUNK; i++) { offs = i * UHCI_SQH_SIZE; sqh = KERNADDR(&dma, offs); sqh->physaddr = DMAADDR(&dma, offs); sqh->hlink = sc->sc_freeqhs; sc->sc_freeqhs = sqh; } } sqh = sc->sc_freeqhs; sc->sc_freeqhs = sqh->hlink; memset(&sqh->qh, 0, sizeof(struct uhci_qh)); out: splx(s); return (sqh); } void uhci_free_sqh(struct uhci_softc *sc, struct uhci_soft_qh *sqh) { sqh->hlink = sc->sc_freeqhs; sc->sc_freeqhs = sqh; } void uhci_free_std_chain(struct uhci_softc *sc, struct uhci_soft_td *std, struct uhci_soft_td *stdend) { struct uhci_soft_td *p; for (; std != stdend; std = p) { p = std->link.std; uhci_free_std(sc, std); } } usbd_status uhci_alloc_std_chain(struct uhci_softc *sc, u_int len, struct usbd_xfer *xfer, struct uhci_soft_td **sp, struct uhci_soft_td **ep) { struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; struct uhci_soft_td *p, *lastp; uhci_physaddr_t lastlink; int i, ntd, l, tog, mps; u_int32_t status; u_int16_t flags = xfer->flags; int rd = usbd_xfer_isread(xfer); struct usb_dma *dma = &xfer->dmabuf; int addr = xfer->device->address; int endpt = xfer->pipe->endpoint->edesc->bEndpointAddress; DPRINTFN(8, ("%s: addr=%d endpt=%d len=%u speed=%d flags=0x%x\n", __func__, addr, UE_GET_ADDR(endpt), len, xfer->device->speed, flags)); mps = UGETW(xfer->pipe->endpoint->edesc->wMaxPacketSize); if (mps == 0) { printf("uhci_alloc_std_chain: mps=0\n"); return (USBD_INVAL); } ntd = (len + mps - 1) / mps; if (len == 0) flags |= USBD_FORCE_SHORT_XFER; if ((flags & USBD_FORCE_SHORT_XFER) && len % mps == 0) ntd++; DPRINTFN(10, ("%s: mps=%d ntd=%d\n", __func__, mps, ntd)); tog = upipe->nexttoggle; if (ntd % 2 == 0) tog ^= 1; upipe->nexttoggle = tog ^ 1; lastp = NULL; lastlink = UHCI_PTR_T; ntd--; status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); if (xfer->pipe->device->speed == USB_SPEED_LOW) status |= UHCI_TD_LS; if (flags & USBD_SHORT_XFER_OK) status |= UHCI_TD_SPD; for (i = ntd; i >= 0; i--) { p = uhci_alloc_std(sc); if (p == NULL) { uhci_free_std_chain(sc, lastp, NULL); return (USBD_NOMEM); } p->link.std = lastp; p->td.td_link = htole32(lastlink | UHCI_PTR_VF | UHCI_PTR_TD); lastp = p; lastlink = p->physaddr; p->td.td_status = htole32(status); if (i == ntd) { /* last TD */ l = len % mps; if (l == 0 && !(flags & USBD_FORCE_SHORT_XFER)) l = mps; *ep = p; } else l = mps; p->td.td_token = htole32(rd ? UHCI_TD_IN (l, endpt, addr, tog) : UHCI_TD_OUT(l, endpt, addr, tog)); p->td.td_buffer = htole32(DMAADDR(dma, i * mps)); tog ^= 1; } *sp = lastp; DPRINTFN(10, ("%s: nexttog=%d\n", __func__, upipe->nexttoggle)); return (USBD_NORMAL_COMPLETION); } void uhci_device_clear_toggle(struct usbd_pipe *pipe) { struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; upipe->nexttoggle = 0; } usbd_status uhci_device_bulk_transfer(struct usbd_xfer *xfer) { usbd_status err; /* Insert last in queue. */ err = usb_insert_transfer(xfer); if (err) return (err); /* * Pipe isn't running (otherwise err would be USBD_INPROG), * so start it first. */ return (uhci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); } usbd_status uhci_device_bulk_start(struct usbd_xfer *xfer) { struct uhci_softc *sc = (struct uhci_softc *)xfer->device->bus; struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; struct uhci_xfer *ux = (struct uhci_xfer *)xfer; struct uhci_soft_td *data, *dataend; struct uhci_soft_qh *sqh; usbd_status err; u_int len; int s; DPRINTFN(3, ("uhci_device_bulk_start: xfer=%p len=%u flags=%d ux=%p\n", xfer, xfer->length, xfer->flags, ux)); if (sc->sc_bus.dying) return (USBD_IOERROR); #ifdef DIAGNOSTIC if (xfer->rqflags & URQ_REQUEST) panic("uhci_device_bulk_start: a request"); #endif len = xfer->length; sqh = upipe->u.bulk.sqh; err = uhci_alloc_std_chain(sc, len, xfer, &data, &dataend); if (err) return (err); dataend->td.td_status |= htole32(UHCI_TD_IOC); #ifdef UHCI_DEBUG if (uhcidebug > 8) { DPRINTF(("uhci_device_bulk_start: data(1)\n")); uhci_dump_tds(data); } #endif /* Set up interrupt info. */ ux->stdstart = data; ux->stdend = dataend; #ifdef DIAGNOSTIC if (!ux->isdone) { printf("uhci_device_bulk_start: not done, ux=%p\n", ux); } ux->isdone = 0; #endif sqh->elink = data; sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); s = splusb(); uhci_add_bulk(sc, sqh); uhci_add_intr_list(sc, ux); if (xfer->timeout && !sc->sc_bus.use_polling) { timeout_del(&xfer->timeout_handle); timeout_set(&xfer->timeout_handle, uhci_timeout, xfer); timeout_add_msec(&xfer->timeout_handle, xfer->timeout); } xfer->status = USBD_IN_PROGRESS; splx(s); #ifdef UHCI_DEBUG if (uhcidebug > 10) { DPRINTF(("uhci_device_bulk_start: data(2)\n")); uhci_dump_tds(data); } #endif return (USBD_IN_PROGRESS); } /* Abort a device bulk request. */ void uhci_device_bulk_abort(struct usbd_xfer *xfer) { DPRINTF(("uhci_device_bulk_abort:\n")); uhci_abort_xfer(xfer, USBD_CANCELLED); } /* * Abort a device request. * If this routine is called at splusb() it guarantees that the request * will be removed from the hardware scheduling and that the callback * for it will be called with USBD_CANCELLED status. * It's impossible to guarantee that the requested transfer will not * have happened since the hardware runs concurrently. * If the transaction has already happened we rely on the ordinary * interrupt processing to process it. */ void uhci_abort_xfer(struct usbd_xfer *xfer, usbd_status status) { struct uhci_softc *sc = (struct uhci_softc *)xfer->device->bus; struct uhci_xfer *ux = (struct uhci_xfer *)xfer; struct uhci_soft_td *std; int s; DPRINTFN(1,("uhci_abort_xfer: xfer=%p, status=%d\n", xfer, status)); if (sc->sc_bus.dying) { /* If we're dying, just do the software part. */ s = splusb(); xfer->status = status; /* make software ignore it */ timeout_del(&xfer->timeout_handle); usb_rem_task(xfer->device, &xfer->abort_task); #ifdef DIAGNOSTIC ux->isdone = 1; #endif usb_transfer_complete(xfer); splx(s); return; } if (xfer->device->bus->intr_context || !curproc) panic("uhci_abort_xfer: not in process context"); /* * Step 1: Make interrupt routine and hardware ignore xfer. */ s = splusb(); xfer->status = status; /* make software ignore it */ timeout_del(&xfer->timeout_handle); usb_rem_task(xfer->device, &xfer->abort_task); DPRINTFN(1,("uhci_abort_xfer: stop ux=%p\n", ux)); for (std = ux->stdstart; std != NULL; std = std->link.std) std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); splx(s); /* * Step 2: Wait until we know hardware has finished any possible * use of the xfer. Also make sure the soft interrupt routine * has run. */ usb_delay_ms(&sc->sc_bus, 2); /* Hardware finishes in 1ms */ s = splusb(); sc->sc_softwake = 1; usb_schedsoftintr(&sc->sc_bus); DPRINTFN(1,("uhci_abort_xfer: tsleep\n")); tsleep_nsec(&sc->sc_softwake, PZERO, "uhciab", INFSLP); splx(s); /* * Step 3: Execute callback. */ DPRINTFN(1,("uhci_abort_xfer: callback\n")); s = splusb(); #ifdef DIAGNOSTIC ux->isdone = 1; #endif usb_transfer_complete(xfer); splx(s); } /* Close a device bulk pipe. */ void uhci_device_bulk_close(struct usbd_pipe *pipe) { struct uhci_softc *sc = (struct uhci_softc *)pipe->device->bus; struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; uhci_free_sqh(sc, upipe->u.bulk.sqh); pipe->endpoint->savedtoggle = upipe->nexttoggle; } usbd_status uhci_device_ctrl_transfer(struct usbd_xfer *xfer) { usbd_status err; /* Insert last in queue. */ err = usb_insert_transfer(xfer); if (err) return (err); /* * Pipe isn't running (otherwise err would be USBD_INPROG), * so start it first. */ return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); } usbd_status uhci_device_ctrl_start(struct usbd_xfer *xfer) { struct uhci_softc *sc = (struct uhci_softc *)xfer->device->bus; usbd_status err; if (sc->sc_bus.dying) return (USBD_IOERROR); #ifdef DIAGNOSTIC if (!(xfer->rqflags & URQ_REQUEST)) panic("uhci_device_ctrl_transfer: not a request"); #endif err = uhci_device_request(xfer); if (err) return (err); return (USBD_IN_PROGRESS); } usbd_status uhci_device_intr_transfer(struct usbd_xfer *xfer) { usbd_status err; /* Insert last in queue. */ err = usb_insert_transfer(xfer); if (err) return (err); /* * Pipe isn't running (otherwise err would be USBD_INPROG), * so start it first. */ return (uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); } usbd_status uhci_device_intr_start(struct usbd_xfer *xfer) { struct uhci_softc *sc = (struct uhci_softc *)xfer->device->bus; struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; struct uhci_xfer *ux = (struct uhci_xfer *)xfer; struct uhci_soft_td *data, *dataend; struct uhci_soft_qh *sqh; usbd_status err; int i, s; if (sc->sc_bus.dying) return (USBD_IOERROR); DPRINTFN(3,("uhci_device_intr_start: xfer=%p len=%u flags=%d\n", xfer, xfer->length, xfer->flags)); #ifdef DIAGNOSTIC if (xfer->rqflags & URQ_REQUEST) panic("uhci_device_intr_start: a request"); #endif upipe->u.intr.isread = usbd_xfer_isread(xfer); err = uhci_alloc_std_chain(sc, xfer->length, xfer, &data, &dataend); if (err) return (err); dataend->td.td_status |= htole32(UHCI_TD_IOC); #ifdef UHCI_DEBUG if (uhcidebug > 10) { DPRINTF(("uhci_device_intr_start: data(1)\n")); uhci_dump_tds(data); uhci_dump_qh(upipe->u.intr.qhs[0]); } #endif s = splusb(); /* Set up interrupt info. */ ux->stdstart = data; ux->stdend = dataend; #ifdef DIAGNOSTIC if (!ux->isdone) { printf("uhci_device_intr_transfer: not done, ux=%p\n", ux); } ux->isdone = 0; #endif DPRINTFN(10,("uhci_device_intr_start: qhs[0]=%p\n", upipe->u.intr.qhs[0])); for (i = 0; i < upipe->u.intr.npoll; i++) { sqh = upipe->u.intr.qhs[i]; sqh->elink = data; sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); } uhci_add_intr_list(sc, ux); xfer->status = USBD_IN_PROGRESS; splx(s); #ifdef UHCI_DEBUG if (uhcidebug > 10) { DPRINTF(("uhci_device_intr_start: data(2)\n")); uhci_dump_tds(data); uhci_dump_qh(upipe->u.intr.qhs[0]); } #endif return (USBD_IN_PROGRESS); } /* Abort a device control request. */ void uhci_device_ctrl_abort(struct usbd_xfer *xfer) { DPRINTF(("uhci_device_ctrl_abort:\n")); uhci_abort_xfer(xfer, USBD_CANCELLED); } /* Close a device control pipe. */ void uhci_device_ctrl_close(struct usbd_pipe *pipe) { } void uhci_device_intr_abort(struct usbd_xfer *xfer) { KASSERT(!xfer->pipe->repeat || xfer->pipe->intrxfer == xfer); uhci_abort_xfer(xfer, USBD_CANCELLED); } /* Close a device interrupt pipe. */ void uhci_device_intr_close(struct usbd_pipe *pipe) { struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; struct uhci_softc *sc = (struct uhci_softc *)pipe->device->bus; struct uhci_soft_qh **qhs; int i, npoll; int s; /* Unlink descriptors from controller data structures. */ qhs = upipe->u.intr.qhs; npoll = upipe->u.intr.npoll; s = splusb(); for (i = 0; i < npoll; i++) uhci_remove_intr(sc, upipe->u.intr.qhs[i]); splx(s); /* * We now have to wait for any activity on the physical * descriptors to stop. */ usb_delay_ms(&sc->sc_bus, 2); for(i = 0; i < npoll; i++) uhci_free_sqh(sc, upipe->u.intr.qhs[i]); free(qhs, M_USBHC, npoll * sizeof(*qhs)); /* XXX free other resources */ } usbd_status uhci_device_request(struct usbd_xfer *xfer) { struct uhci_softc *sc = (struct uhci_softc *)xfer->device->bus; struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; struct uhci_xfer *ux = (struct uhci_xfer *)xfer; usb_device_request_t *req = &xfer->request; int addr = xfer->device->address; int endpt = xfer->pipe->endpoint->edesc->bEndpointAddress; struct uhci_soft_td *setup, *data, *stat, *next, *dataend; struct uhci_soft_qh *sqh; u_int len; u_int32_t ls; usbd_status err; int s; DPRINTFN(3,("uhci_device_request type=0x%02x, request=0x%02x, " "wValue=0x%04x, wIndex=0x%04x len=%u, addr=%d, endpt=%d\n", req->bmRequestType, req->bRequest, UGETW(req->wValue), UGETW(req->wIndex), UGETW(req->wLength), addr, endpt)); ls = xfer->device->speed == USB_SPEED_LOW ? UHCI_TD_LS : 0; len = UGETW(req->wLength); setup = upipe->u.ctl.setup; stat = upipe->u.ctl.stat; sqh = upipe->u.ctl.sqh; /* Set up data transaction */ if (len != 0) { upipe->nexttoggle = 1; err = uhci_alloc_std_chain(sc, len, xfer, &data, &dataend); if (err) return (err); next = data; dataend->link.std = stat; dataend->td.td_link = htole32(stat->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); } else { next = stat; } upipe->u.ctl.length = len; memcpy(KERNADDR(&upipe->u.ctl.reqdma, 0), req, sizeof *req); setup->link.std = next; setup->td.td_link = htole32(next->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); setup->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | UHCI_TD_ACTIVE); setup->td.td_token = htole32(UHCI_TD_SETUP(sizeof *req, endpt, addr)); setup->td.td_buffer = htole32(DMAADDR(&upipe->u.ctl.reqdma, 0)); stat->link.std = NULL; stat->td.td_link = htole32(UHCI_PTR_T); stat->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | UHCI_TD_ACTIVE | UHCI_TD_IOC); stat->td.td_token = htole32(usbd_xfer_isread(xfer) ? UHCI_TD_OUT(0, endpt, addr, 1) : UHCI_TD_IN (0, endpt, addr, 1)); stat->td.td_buffer = htole32(0); #ifdef UHCI_DEBUG if (uhcidebug > 10) { DPRINTF(("uhci_device_request: before transfer\n")); uhci_dump_tds(setup); } #endif /* Set up interrupt info. */ ux->stdstart = setup; ux->stdend = stat; #ifdef DIAGNOSTIC if (!ux->isdone) { printf("%s: not done, ux=%p\n", __func__, ux); } ux->isdone = 0; #endif sqh->elink = setup; sqh->qh.qh_elink = htole32(setup->physaddr | UHCI_PTR_TD); s = splusb(); if (xfer->device->speed == USB_SPEED_LOW) uhci_add_ls_ctrl(sc, sqh); else uhci_add_hs_ctrl(sc, sqh); uhci_add_intr_list(sc, ux); #ifdef UHCI_DEBUG if (uhcidebug > 12) { struct uhci_soft_td *std; struct uhci_soft_qh *xqh; struct uhci_soft_qh *sxqh; int maxqh = 0; uhci_physaddr_t link; DPRINTF(("uhci_device_request: follow from [0]\n")); for (std = sc->sc_vframes[0].htd, link = 0; (link & UHCI_PTR_QH) == 0; std = std->link.std) { link = letoh32(std->td.td_link); uhci_dump_td(std); } sxqh = (struct uhci_soft_qh *)std; uhci_dump_qh(sxqh); for (xqh = sxqh; xqh != NULL; xqh = (maxqh++ == 5 || xqh->hlink == sxqh || xqh->hlink == xqh ? NULL : xqh->hlink)) { uhci_dump_qh(xqh); } DPRINTF(("Enqueued QH:\n")); uhci_dump_qh(sqh); uhci_dump_tds(sqh->elink); } #endif if (xfer->timeout && !sc->sc_bus.use_polling) { timeout_del(&xfer->timeout_handle); timeout_set(&xfer->timeout_handle, uhci_timeout, xfer); timeout_add_msec(&xfer->timeout_handle, xfer->timeout); } xfer->status = USBD_IN_PROGRESS; splx(s); return (USBD_NORMAL_COMPLETION); } usbd_status uhci_device_isoc_transfer(struct usbd_xfer *xfer) { usbd_status err; DPRINTFN(5,("uhci_device_isoc_transfer: xfer=%p\n", xfer)); /* Put it on our queue, */ err = usb_insert_transfer(xfer); /* bail out on error, */ if (err && err != USBD_IN_PROGRESS) return (err); /* XXX should check inuse here */ /* insert into schedule, */ uhci_device_isoc_enter(xfer); /* and start if the pipe wasn't running */ if (!err) uhci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); return (err); } void uhci_device_isoc_enter(struct usbd_xfer *xfer) { struct uhci_softc *sc = (struct uhci_softc *)xfer->device->bus; struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; struct iso *iso = &upipe->u.iso; struct uhci_soft_td *std; u_int32_t buf, len, status; int s, i, next, nframes; DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p " "nframes=%d\n", iso->inuse, iso->next, xfer, xfer->nframes)); if (sc->sc_bus.dying) return; if (xfer->status == USBD_IN_PROGRESS) { /* This request has already been entered into the frame list */ printf("uhci_device_isoc_enter: xfer=%p in frame list\n", xfer); /* XXX */ } #ifdef DIAGNOSTIC if (iso->inuse >= UHCI_VFRAMELIST_COUNT) printf("uhci_device_isoc_enter: overflow!\n"); #endif next = iso->next; if (next == -1) { /* Not in use yet, schedule it a few frames ahead. */ next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); } xfer->status = USBD_IN_PROGRESS; ((struct uhci_xfer *)xfer)->curframe = next; buf = DMAADDR(&xfer->dmabuf, 0); status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | UHCI_TD_ACTIVE | UHCI_TD_IOS); nframes = xfer->nframes; s = splusb(); for (i = 0; i < nframes; i++) { std = iso->stds[next]; if (++next >= UHCI_VFRAMELIST_COUNT) next = 0; len = xfer->frlengths[i]; std->td.td_buffer = htole32(buf); if (i == nframes - 1) status |= UHCI_TD_IOC; std->td.td_status = htole32(status); std->td.td_token &= htole32(~UHCI_TD_MAXLEN_MASK); std->td.td_token |= htole32(UHCI_TD_SET_MAXLEN(len)); #ifdef UHCI_DEBUG if (uhcidebug > 5) { DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); uhci_dump_td(std); } #endif buf += len; } iso->next = next; iso->inuse += xfer->nframes; splx(s); } usbd_status uhci_device_isoc_start(struct usbd_xfer *xfer) { struct uhci_softc *sc = (struct uhci_softc *)xfer->device->bus; struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; struct uhci_xfer *ux = (struct uhci_xfer *)xfer; struct uhci_soft_td *end; int s, i; DPRINTFN(5,("uhci_device_isoc_start: xfer=%p\n", xfer)); if (sc->sc_bus.dying) return (USBD_IOERROR); #ifdef DIAGNOSTIC if (xfer->status != USBD_IN_PROGRESS) printf("uhci_device_isoc_start: not in progress %p\n", xfer); #endif /* Find the last TD */ i = ux->curframe + (xfer->nframes - 1); if (i >= UHCI_VFRAMELIST_COUNT) i -= UHCI_VFRAMELIST_COUNT; end = upipe->u.iso.stds[i]; #ifdef DIAGNOSTIC if (end == NULL) { printf("uhci_device_isoc_start: end == NULL\n"); return (USBD_INVAL); } #endif s = splusb(); /* Set up interrupt info. */ ux->stdstart = end; ux->stdend = end; #ifdef DIAGNOSTIC if (!ux->isdone) printf("%s: not done, ux=%p\n", __func__, ux); ux->isdone = 0; #endif uhci_add_intr_list(sc, ux); splx(s); return (USBD_IN_PROGRESS); } void uhci_device_isoc_abort(struct usbd_xfer *xfer) { struct uhci_xfer *ux = (struct uhci_xfer *)xfer; struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; struct uhci_soft_td **stds = upipe->u.iso.stds; struct uhci_soft_td *std; int i, n, s, nframes, maxlen, len; s = splusb(); /* Transfer is already done. */ if (xfer->status != USBD_NOT_STARTED && xfer->status != USBD_IN_PROGRESS) { splx(s); return; } /* Give xfer the requested abort code. */ xfer->status = USBD_CANCELLED; /* make hardware ignore it, */ nframes = xfer->nframes; n = ux->curframe; maxlen = 0; for (i = 0; i < nframes; i++) { std = stds[n]; std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); len = UHCI_TD_GET_MAXLEN(letoh32(std->td.td_token)); if (len > maxlen) maxlen = len; if (++n >= UHCI_VFRAMELIST_COUNT) n = 0; } /* and wait until we are sure the hardware has finished. */ delay(maxlen); #ifdef DIAGNOSTIC ux->isdone = 1; #endif /* Run callback and remove from interrupt list. */ usb_transfer_complete(xfer); splx(s); } void uhci_device_isoc_close(struct usbd_pipe *pipe) { struct uhci_softc *sc = (struct uhci_softc *)pipe->device->bus; struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; struct uhci_soft_td *std, *vstd; struct iso *iso; int i, s; /* * Make sure all TDs are marked as inactive. * Wait for completion. * Unschedule. * Deallocate. */ iso = &upipe->u.iso; for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) iso->stds[i]->td.td_status &= htole32(~UHCI_TD_ACTIVE); usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ s = splusb(); for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { std = iso->stds[i]; for (vstd = sc->sc_vframes[i].htd; vstd != NULL && vstd->link.std != std; vstd = vstd->link.std) ; if (vstd == NULL) { /*panic*/ printf("uhci_device_isoc_close: %p not found\n", std); splx(s); return; } vstd->link = std->link; vstd->td.td_link = std->td.td_link; uhci_free_std(sc, std); } splx(s); free(iso->stds, M_USBHC, UHCI_VFRAMELIST_COUNT * sizeof(*iso->stds)); } usbd_status uhci_setup_isoc(struct usbd_pipe *pipe) { struct uhci_softc *sc = (struct uhci_softc *)pipe->device->bus; struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; int addr = pipe->device->address; int endpt = pipe->endpoint->edesc->bEndpointAddress; int rd = UE_GET_DIR(endpt) == UE_DIR_IN; struct uhci_soft_td *std, *vstd; u_int32_t token; struct iso *iso; int i, s; iso = &upipe->u.iso; iso->stds = mallocarray(UHCI_VFRAMELIST_COUNT, sizeof(*iso->stds), M_USBHC, M_WAITOK); token = rd ? UHCI_TD_IN (0, endpt, addr, 0) : UHCI_TD_OUT(0, endpt, addr, 0); /* Allocate the TDs and mark as inactive; */ for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { std = uhci_alloc_std(sc); if (std == 0) goto bad; std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ std->td.td_token = htole32(token); iso->stds[i] = std; } /* Insert TDs into schedule. */ s = splusb(); for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { std = iso->stds[i]; vstd = sc->sc_vframes[i].htd; std->link = vstd->link; std->td.td_link = vstd->td.td_link; vstd->link.std = std; vstd->td.td_link = htole32(std->physaddr | UHCI_PTR_TD); } splx(s); iso->next = -1; iso->inuse = 0; return (USBD_NORMAL_COMPLETION); bad: while (--i >= 0) uhci_free_std(sc, iso->stds[i]); free(iso->stds, M_USBHC, UHCI_VFRAMELIST_COUNT * sizeof(*iso->stds)); return (USBD_NOMEM); } void uhci_device_isoc_done(struct usbd_xfer *xfer) { struct uhci_xfer *ux = (struct uhci_xfer *)xfer; DPRINTFN(4, ("uhci_device_isoc_done: length=%d\n", xfer->actlen)); if (!uhci_active_intr_list(ux)) return; #ifdef DIAGNOSTIC if (ux->stdend == NULL) { printf("uhci_device_isoc_done: xfer=%p stdend==NULL\n", xfer); #ifdef UHCI_DEBUG uhci_dump_xfer(ux); #endif return; } #endif /* Turn off the interrupt since it is active even if the TD is not. */ ux->stdend->td.td_status &= htole32(~UHCI_TD_IOC); uhci_del_intr_list(ux); /* remove from active list */ } void uhci_device_intr_done(struct usbd_xfer *xfer) { struct uhci_softc *sc = (struct uhci_softc *)xfer->device->bus; struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; struct uhci_xfer *ux = (struct uhci_xfer *)xfer; struct uhci_soft_qh *sqh; int i, npoll; DPRINTFN(5, ("uhci_device_intr_done: length=%d\n", xfer->actlen)); npoll = upipe->u.intr.npoll; for(i = 0; i < npoll; i++) { sqh = upipe->u.intr.qhs[i]; sqh->elink = NULL; sqh->qh.qh_elink = htole32(UHCI_PTR_T); } uhci_free_std_chain(sc, ux->stdstart, NULL); /* XXX Wasteful. */ if (xfer->pipe->repeat) { struct uhci_soft_td *data, *dataend; DPRINTFN(5,("uhci_device_intr_done: requeuing\n")); /* This alloc cannot fail since we freed the chain above. */ uhci_alloc_std_chain(sc, xfer->length, xfer, &data, &dataend); dataend->td.td_status |= htole32(UHCI_TD_IOC); #ifdef UHCI_DEBUG if (uhcidebug > 10) { DPRINTF(("uhci_device_intr_done: data(1)\n")); uhci_dump_tds(data); uhci_dump_qh(upipe->u.intr.qhs[0]); } #endif ux->stdstart = data; ux->stdend = dataend; #ifdef DIAGNOSTIC if (!ux->isdone) { printf("%s: not done, ux=%p\n", __func__, ux); } ux->isdone = 0; #endif for (i = 0; i < npoll; i++) { sqh = upipe->u.intr.qhs[i]; sqh->elink = data; sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); } xfer->status = USBD_IN_PROGRESS; /* The ux is already on the examined list, just leave it. */ } else { DPRINTFN(5,("uhci_device_intr_done: removing\n")); if (uhci_active_intr_list(ux)) uhci_del_intr_list(ux); } } /* Deallocate request data structures */ void uhci_device_ctrl_done(struct usbd_xfer *xfer) { struct uhci_softc *sc = (struct uhci_softc *)xfer->device->bus; struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; struct uhci_xfer *ux = (struct uhci_xfer *)xfer; #ifdef DIAGNOSTIC if (!(xfer->rqflags & URQ_REQUEST)) panic("uhci_device_ctrl_done: not a request"); #endif if (!uhci_active_intr_list(ux)) return; uhci_del_intr_list(ux); /* remove from active list */ if (xfer->device->speed == USB_SPEED_LOW) uhci_remove_ls_ctrl(sc, upipe->u.ctl.sqh); else uhci_remove_hs_ctrl(sc, upipe->u.ctl.sqh); if (upipe->u.ctl.length != 0) uhci_free_std_chain(sc, ux->stdstart->link.std, ux->stdend); DPRINTFN(5, ("uhci_device_ctrl_done: length=%d\n", xfer->actlen)); } /* Deallocate request data structures */ void uhci_device_bulk_done(struct usbd_xfer *xfer) { struct uhci_softc *sc = (struct uhci_softc *)xfer->device->bus; struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; struct uhci_xfer *ux = (struct uhci_xfer *)xfer; DPRINTFN(5,("uhci_device_bulk_done: xfer=%p ux=%p sc=%p upipe=%p\n", xfer, ux, sc, upipe)); if (!uhci_active_intr_list(ux)) return; uhci_del_intr_list(ux); /* remove from active list */ uhci_remove_bulk(sc, upipe->u.bulk.sqh); uhci_free_std_chain(sc, ux->stdstart, NULL); DPRINTFN(5, ("uhci_device_bulk_done: length=%d\n", xfer->actlen)); } /* Add interrupt QH, called with vflock. */ void uhci_add_intr(struct uhci_softc *sc, struct uhci_soft_qh *sqh) { struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; struct uhci_soft_qh *eqh; DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", sqh->pos, sqh)); eqh = vf->eqh; sqh->hlink = eqh->hlink; sqh->qh.qh_hlink = eqh->qh.qh_hlink; eqh->hlink = sqh; eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); vf->eqh = sqh; vf->bandwidth++; } /* Remove interrupt QH. */ void uhci_remove_intr(struct uhci_softc *sc, struct uhci_soft_qh *sqh) { struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; struct uhci_soft_qh *pqh; DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", sqh->pos, sqh)); /* See comment in uhci_remove_ctrl() */ if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { sqh->qh.qh_elink = htole32(UHCI_PTR_T); delay(UHCI_QH_REMOVE_DELAY); } pqh = uhci_find_prev_qh(vf->hqh, sqh); pqh->hlink = sqh->hlink; pqh->qh.qh_hlink = sqh->qh.qh_hlink; delay(UHCI_QH_REMOVE_DELAY); if (vf->eqh == sqh) vf->eqh = pqh; vf->bandwidth--; } usbd_status uhci_device_setintr(struct uhci_softc *sc, struct uhci_pipe *upipe, int ival) { struct uhci_soft_qh *sqh, **qhs; int i, npoll, s; u_int bestbw, bw, bestoffs, offs; DPRINTFN(2, ("uhci_device_setintr: pipe=%p\n", upipe)); if (ival == 0) { printf("uhci_device_setintr: 0 interval\n"); return (USBD_INVAL); } if (ival > UHCI_VFRAMELIST_COUNT) ival = UHCI_VFRAMELIST_COUNT; npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; DPRINTFN(2, ("uhci_device_setintr: ival=%d npoll=%d\n", ival, npoll)); qhs = mallocarray(npoll, sizeof(*qhs), M_USBHC, M_NOWAIT); if (qhs == NULL) return (USBD_NOMEM); /* * Figure out which offset in the schedule that has most * bandwidth left over. */ #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { for (bw = i = 0; i < npoll; i++) bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; if (bw < bestbw) { bestbw = bw; bestoffs = offs; } } DPRINTFN(1, ("uhci_device_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); for(i = 0; i < npoll; i++) { sqh = uhci_alloc_sqh(sc); if (sqh == NULL) { while (i > 0) uhci_free_sqh(sc, qhs[--i]); free(qhs, M_USBHC, npoll * sizeof(*qhs)); return (USBD_NOMEM); } sqh->elink = NULL; sqh->qh.qh_elink = htole32(UHCI_PTR_T); sqh->pos = MOD(i * ival + bestoffs); qhs[i] = sqh; } #undef MOD upipe->u.intr.npoll = npoll; upipe->u.intr.qhs = qhs; s = splusb(); /* Enter QHs into the controller data structures. */ for(i = 0; i < npoll; i++) uhci_add_intr(sc, upipe->u.intr.qhs[i]); splx(s); DPRINTFN(5, ("uhci_device_setintr: returns %p\n", upipe)); return (USBD_NORMAL_COMPLETION); } /* Open a new pipe. */ usbd_status uhci_open(struct usbd_pipe *pipe) { struct uhci_softc *sc = (struct uhci_softc *)pipe->device->bus; struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; usbd_status err; int ival; DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d\n", pipe, pipe->device->address, ed->bEndpointAddress)); upipe->nexttoggle = pipe->endpoint->savedtoggle; /* Root Hub */ if (pipe->device->depth == 0) { switch (ed->bEndpointAddress) { case USB_CONTROL_ENDPOINT: pipe->methods = &uhci_root_ctrl_methods; break; case UE_DIR_IN | UHCI_INTR_ENDPT: pipe->methods = &uhci_root_intr_methods; break; default: return (USBD_INVAL); } } else { switch (UE_GET_XFERTYPE(ed->bmAttributes)) { case UE_CONTROL: pipe->methods = &uhci_device_ctrl_methods; upipe->u.ctl.sqh = uhci_alloc_sqh(sc); if (upipe->u.ctl.sqh == NULL) goto bad; upipe->u.ctl.setup = uhci_alloc_std(sc); if (upipe->u.ctl.setup == NULL) { uhci_free_sqh(sc, upipe->u.ctl.sqh); goto bad; } upipe->u.ctl.stat = uhci_alloc_std(sc); if (upipe->u.ctl.stat == NULL) { uhci_free_sqh(sc, upipe->u.ctl.sqh); uhci_free_std(sc, upipe->u.ctl.setup); goto bad; } upipe->u.ctl.reqdma.flags |= USB_DMA_COHERENT; err = usb_allocmem(&sc->sc_bus, sizeof(usb_device_request_t), 0, &upipe->u.ctl.reqdma); if (err) { uhci_free_sqh(sc, upipe->u.ctl.sqh); uhci_free_std(sc, upipe->u.ctl.setup); uhci_free_std(sc, upipe->u.ctl.stat); goto bad; } break; case UE_INTERRUPT: pipe->methods = &uhci_device_intr_methods; ival = pipe->interval; if (ival == USBD_DEFAULT_INTERVAL) ival = ed->bInterval; return (uhci_device_setintr(sc, upipe, ival)); case UE_ISOCHRONOUS: pipe->methods = &uhci_device_isoc_methods; return (uhci_setup_isoc(pipe)); case UE_BULK: pipe->methods = &uhci_device_bulk_methods; upipe->u.bulk.sqh = uhci_alloc_sqh(sc); if (upipe->u.bulk.sqh == NULL) goto bad; break; } } return (USBD_NORMAL_COMPLETION); bad: return (USBD_NOMEM); } /* * Data structures and routines to emulate the root hub. */ usb_device_descriptor_t uhci_devd = { USB_DEVICE_DESCRIPTOR_SIZE, UDESC_DEVICE, /* type */ {0x00, 0x01}, /* USB version */ UDCLASS_HUB, /* class */ UDSUBCLASS_HUB, /* subclass */ UDPROTO_FSHUB, /* protocol */ 64, /* max packet */ {0},{0},{0x00,0x01}, /* device id */ 1,2,0, /* string indices */ 1 /* # of configurations */ }; usb_config_descriptor_t uhci_confd = { USB_CONFIG_DESCRIPTOR_SIZE, UDESC_CONFIG, {USB_CONFIG_DESCRIPTOR_SIZE + USB_INTERFACE_DESCRIPTOR_SIZE + USB_ENDPOINT_DESCRIPTOR_SIZE}, 1, 1, 0, UC_BUS_POWERED | UC_SELF_POWERED, 0 /* max power */ }; usb_interface_descriptor_t uhci_ifcd = { USB_INTERFACE_DESCRIPTOR_SIZE, UDESC_INTERFACE, 0, 0, 1, UICLASS_HUB, UISUBCLASS_HUB, UIPROTO_FSHUB, 0 }; usb_endpoint_descriptor_t uhci_endpd = { USB_ENDPOINT_DESCRIPTOR_SIZE, UDESC_ENDPOINT, UE_DIR_IN | UHCI_INTR_ENDPT, UE_INTERRUPT, {8}, 255 }; usb_hub_descriptor_t uhci_hubd_piix = { USB_HUB_DESCRIPTOR_SIZE, UDESC_HUB, 2, { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 50, /* power on to power good */ 0, { 0x00 }, /* both ports are removable */ }; /* * The USB hub protocol requires that SET_FEATURE(PORT_RESET) also * enables the port, and also states that SET_FEATURE(PORT_ENABLE) * should not be used by the USB subsystem. As we cannot issue a * SET_FEATURE(PORT_ENABLE) externally, we must ensure that the port * will be enabled as part of the reset. * * On the VT83C572, the port cannot be successfully enabled until the * outstanding "port enable change" and "connection status change" * events have been reset. */ usbd_status uhci_portreset(struct uhci_softc *sc, int index) { int lim, port, x; if (index == 1) port = UHCI_PORTSC1; else if (index == 2) port = UHCI_PORTSC2; else return (USBD_IOERROR); x = URWMASK(UREAD2(sc, port)); UWRITE2(sc, port, x | UHCI_PORTSC_PR); usb_delay_ms(&sc->sc_bus, USB_PORT_ROOT_RESET_DELAY); DPRINTFN(3,("uhci port %d reset, status0 = 0x%04x\n", index, UREAD2(sc, port))); x = URWMASK(UREAD2(sc, port)); UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); delay(100); DPRINTFN(3,("uhci port %d reset, status1 = 0x%04x\n", index, UREAD2(sc, port))); x = URWMASK(UREAD2(sc, port)); UWRITE2(sc, port, x | UHCI_PORTSC_PE); for (lim = 10; --lim > 0;) { usb_delay_ms(&sc->sc_bus, USB_PORT_RESET_DELAY); x = UREAD2(sc, port); DPRINTFN(3,("uhci port %d iteration %u, status = 0x%04x\n", index, lim, x)); if (!(x & UHCI_PORTSC_CCS)) { /* * No device is connected (or was disconnected * during reset). Consider the port reset. * The delay must be long enough to ensure on * the initial iteration that the device * connection will have been registered. 50ms * appears to be sufficient, but 20ms is not. */ DPRINTFN(3,("uhci port %d loop %u, device detached\n", index, lim)); break; } if (x & (UHCI_PORTSC_POEDC | UHCI_PORTSC_CSC)) { /* * Port enabled changed and/or connection * status changed were set. Reset either or * both raised flags (by writing a 1 to that * bit), and wait again for state to settle. */ UWRITE2(sc, port, URWMASK(x) | (x & (UHCI_PORTSC_POEDC | UHCI_PORTSC_CSC))); continue; } if (x & UHCI_PORTSC_PE) /* Port is enabled */ break; UWRITE2(sc, port, URWMASK(x) | UHCI_PORTSC_PE); } DPRINTFN(3,("uhci port %d reset, status2 = 0x%04x\n", index, UREAD2(sc, port))); if (lim <= 0) { DPRINTFN(1,("uhci port %d reset timed out\n", index)); return (USBD_TIMEOUT); } sc->sc_isreset = 1; return (USBD_NORMAL_COMPLETION); } /* * Simulate a hardware hub by handling all the necessary requests. */ usbd_status uhci_root_ctrl_transfer(struct usbd_xfer *xfer) { usbd_status err; /* Insert last in queue. */ err = usb_insert_transfer(xfer); if (err) return (err); /* * Pipe isn't running (otherwise err would be USBD_INPROG), * so start it first. */ return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); } usbd_status uhci_root_ctrl_start(struct usbd_xfer *xfer) { struct uhci_softc *sc = (struct uhci_softc *)xfer->device->bus; usb_device_request_t *req; void *buf = NULL; int port, x; int s, len, value, index, status, change, l, totlen = 0; usb_port_status_t ps; usbd_status err; if (sc->sc_bus.dying) return (USBD_IOERROR); #ifdef DIAGNOSTIC if (!(xfer->rqflags & URQ_REQUEST)) panic("uhci_root_ctrl_start: not a request"); #endif req = &xfer->request; DPRINTFN(2,("uhci_root_ctrl_start type=0x%02x request=%02x\n", req->bmRequestType, req->bRequest)); len = UGETW(req->wLength); value = UGETW(req->wValue); index = UGETW(req->wIndex); if (len != 0) buf = KERNADDR(&xfer->dmabuf, 0); #define C(x,y) ((x) | ((y) << 8)) switch(C(req->bRequest, req->bmRequestType)) { case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): /* * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops * for the integrated root hub. */ break; case C(UR_GET_CONFIG, UT_READ_DEVICE): if (len > 0) { *(u_int8_t *)buf = sc->sc_conf; totlen = 1; } break; case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): DPRINTFN(2,("uhci_root_ctrl_start wValue=0x%04x\n", value)); switch(value >> 8) { case UDESC_DEVICE: if ((value & 0xff) != 0) { err = USBD_IOERROR; goto ret; } totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); USETW(uhci_devd.idVendor, sc->sc_id_vendor); memcpy(buf, &uhci_devd, l); break; case UDESC_CONFIG: if ((value & 0xff) != 0) { err = USBD_IOERROR; goto ret; } totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); memcpy(buf, &uhci_confd, l); buf = (char *)buf + l; len -= l; l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); totlen += l; memcpy(buf, &uhci_ifcd, l); buf = (char *)buf + l; len -= l; l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); totlen += l; memcpy(buf, &uhci_endpd, l); break; case UDESC_STRING: if (len == 0) break; *(u_int8_t *)buf = 0; totlen = 1; switch (value & 0xff) { case 0: /* Language table */ totlen = usbd_str(buf, len, "\001"); break; case 1: /* Vendor */ totlen = usbd_str(buf, len, sc->sc_vendor); break; case 2: /* Product */ totlen = usbd_str(buf, len, "UHCI root hub"); break; } break; default: err = USBD_IOERROR; goto ret; } break; case C(UR_GET_INTERFACE, UT_READ_INTERFACE): if (len > 0) { *(u_int8_t *)buf = 0; totlen = 1; } break; case C(UR_GET_STATUS, UT_READ_DEVICE): if (len > 1) { USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); totlen = 2; } break; case C(UR_GET_STATUS, UT_READ_INTERFACE): case C(UR_GET_STATUS, UT_READ_ENDPOINT): if (len > 1) { USETW(((usb_status_t *)buf)->wStatus, 0); totlen = 2; } break; case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): if (value >= USB_MAX_DEVICES) { err = USBD_IOERROR; goto ret; } break; case C(UR_SET_CONFIG, UT_WRITE_DEVICE): if (value != 0 && value != 1) { err = USBD_IOERROR; goto ret; } sc->sc_conf = value; break; case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): break; case C(UR_SET_FEATURE, UT_WRITE_DEVICE): case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): err = USBD_IOERROR; goto ret; case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): break; case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): break; /* Hub requests */ case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): break; case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): DPRINTFN(3, ("uhci_root_ctrl_start: UR_CLEAR_PORT_FEATURE " "port=%d feature=%d\n", index, value)); if (index == 1) port = UHCI_PORTSC1; else if (index == 2) port = UHCI_PORTSC2; else { err = USBD_IOERROR; goto ret; } switch(value) { case UHF_PORT_ENABLE: x = URWMASK(UREAD2(sc, port)); UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); break; case UHF_PORT_SUSPEND: x = URWMASK(UREAD2(sc, port)); UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); break; case UHF_PORT_RESET: x = URWMASK(UREAD2(sc, port)); UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); break; case UHF_C_PORT_CONNECTION: x = URWMASK(UREAD2(sc, port)); UWRITE2(sc, port, x | UHCI_PORTSC_CSC); break; case UHF_C_PORT_ENABLE: x = URWMASK(UREAD2(sc, port)); UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); break; case UHF_C_PORT_OVER_CURRENT: x = URWMASK(UREAD2(sc, port)); UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); break; case UHF_C_PORT_RESET: sc->sc_isreset = 0; err = USBD_NORMAL_COMPLETION; goto ret; case UHF_PORT_CONNECTION: case UHF_PORT_OVER_CURRENT: case UHF_PORT_POWER: case UHF_PORT_LOW_SPEED: case UHF_C_PORT_SUSPEND: default: err = USBD_IOERROR; goto ret; } break; case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): if (index == 1) port = UHCI_PORTSC1; else if (index == 2) port = UHCI_PORTSC2; else { err = USBD_IOERROR; goto ret; } if (len > 0) { *(u_int8_t *)buf = (UREAD2(sc, port) & UHCI_PORTSC_LS) >> UHCI_PORTSC_LS_SHIFT; totlen = 1; } break; case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): if ((value & 0xff) != 0) { err = USBD_IOERROR; goto ret; } l = min(len, USB_HUB_DESCRIPTOR_SIZE); totlen = l; memcpy(buf, &uhci_hubd_piix, l); break; case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): if (len != 4) { err = USBD_IOERROR; goto ret; } memset(buf, 0, len); totlen = len; break; case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): if (index == 1) port = UHCI_PORTSC1; else if (index == 2) port = UHCI_PORTSC2; else { err = USBD_IOERROR; goto ret; } if (len != 4) { err = USBD_IOERROR; goto ret; } x = UREAD2(sc, port); status = change = 0; if (x & UHCI_PORTSC_CCS) status |= UPS_CURRENT_CONNECT_STATUS; if (x & UHCI_PORTSC_CSC) change |= UPS_C_CONNECT_STATUS; if (x & UHCI_PORTSC_PE) status |= UPS_PORT_ENABLED; if (x & UHCI_PORTSC_POEDC) change |= UPS_C_PORT_ENABLED; if (x & UHCI_PORTSC_OCI) status |= UPS_OVERCURRENT_INDICATOR; if (x & UHCI_PORTSC_OCIC) change |= UPS_C_OVERCURRENT_INDICATOR; if (x & UHCI_PORTSC_SUSP) status |= UPS_SUSPEND; if (x & UHCI_PORTSC_LSDA) status |= UPS_LOW_SPEED; status |= UPS_PORT_POWER; if (sc->sc_isreset) change |= UPS_C_PORT_RESET; USETW(ps.wPortStatus, status); USETW(ps.wPortChange, change); l = min(len, sizeof ps); memcpy(buf, &ps, l); totlen = l; break; case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): err = USBD_IOERROR; goto ret; case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): break; case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): if (index == 1) port = UHCI_PORTSC1; else if (index == 2) port = UHCI_PORTSC2; else { err = USBD_IOERROR; goto ret; } switch(value) { case UHF_PORT_ENABLE: x = URWMASK(UREAD2(sc, port)); UWRITE2(sc, port, x | UHCI_PORTSC_PE); break; case UHF_PORT_SUSPEND: x = URWMASK(UREAD2(sc, port)); UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); break; case UHF_PORT_RESET: err = uhci_portreset(sc, index); goto ret; case UHF_PORT_POWER: /* Pretend we turned on power */ err = USBD_NORMAL_COMPLETION; goto ret; case UHF_PORT_DISOWN_TO_1_1: /* accept, but do nothing */ err = USBD_NORMAL_COMPLETION; goto ret; case UHF_C_PORT_CONNECTION: case UHF_C_PORT_ENABLE: case UHF_C_PORT_OVER_CURRENT: case UHF_PORT_CONNECTION: case UHF_PORT_OVER_CURRENT: case UHF_PORT_LOW_SPEED: case UHF_C_PORT_SUSPEND: case UHF_C_PORT_RESET: default: err = USBD_IOERROR; goto ret; } break; default: err = USBD_IOERROR; goto ret; } xfer->actlen = totlen; err = USBD_NORMAL_COMPLETION; ret: xfer->status = err; s = splusb(); usb_transfer_complete(xfer); splx(s); return (err); } /* Abort a root control request. */ void uhci_root_ctrl_abort(struct usbd_xfer *xfer) { /* Nothing to do, all transfers are synchronous. */ } /* Close the root pipe. */ void uhci_root_ctrl_close(struct usbd_pipe *pipe) { DPRINTF(("uhci_root_ctrl_close\n")); } void uhci_root_intr_abort(struct usbd_xfer *xfer) { struct uhci_softc *sc = (struct uhci_softc *)xfer->device->bus; int s; timeout_del(&sc->sc_root_intr); sc->sc_intrxfer = NULL; xfer->status = USBD_CANCELLED; s = splusb(); usb_transfer_complete(xfer); splx(s); } usbd_status uhci_root_intr_transfer(struct usbd_xfer *xfer) { usbd_status err; /* Insert last in queue. */ err = usb_insert_transfer(xfer); if (err) return (err); /* Pipe isn't running (otherwise err would be USBD_INPROG), * start first */ return (uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); } /* Start a transfer on the root interrupt pipe */ usbd_status uhci_root_intr_start(struct usbd_xfer *xfer) { struct uhci_softc *sc = (struct uhci_softc *)xfer->device->bus; if (sc->sc_bus.dying) return (USBD_IOERROR); sc->sc_intrxfer = xfer; timeout_add_msec(&sc->sc_root_intr, 255); return (USBD_IN_PROGRESS); } void uhci_root_intr_close(struct usbd_pipe *pipe) { } void uhci_root_intr_done(struct usbd_xfer *xfer) { struct uhci_softc *sc = (struct uhci_softc *)xfer->device->bus; if (xfer->pipe->repeat) timeout_add_msec(&sc->sc_root_intr, 255); }