/* $NetBSD: ehci.c,v 1.91 2005/02/27 00:27:51 perry Exp $ */ /*- * Copyright (c) 2004 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Lennart Augustsson (lennart@augustsson.net) and by Charles M. Hannum. * * 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. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the NetBSD * Foundation, Inc. and its contributors. * 4. Neither the name of The NetBSD Foundation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * 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. */ /* * USB Enhanced Host Controller Driver, a.k.a. USB 2.0 controller. * * The EHCI 1.0 spec can be found at * http://developer.intel.com/technology/usb/download/ehci-r10.pdf * and the USB 2.0 spec at * http://www.usb.org/developers/docs/usb_20.zip * */ /* * TODO: * 1) The EHCI driver lacks support for isochronous transfers, so * devices using them don't work. * * 2) Interrupt transfer scheduling does not manage the time available * in each frame, so it is possible for the transfers to overrun * the end of the frame. * * 3) Command failures are not recovered correctly. */ #include __FBSDID("$FreeBSD$"); #include #include #include #include #if defined(__NetBSD__) || defined(__OpenBSD__) #include #include #elif defined(__FreeBSD__) #include #include #include #include #if defined(DIAGNOSTIC) && defined(__i386__) && defined(__FreeBSD__) #include #endif #endif #include #include #include #include #include #include #include #include #include #include #include #include #if defined(__FreeBSD__) #include #define delay(d) DELAY(d) #endif #ifdef USB_DEBUG #define EHCI_DEBUG USB_DEBUG #define DPRINTF(x) do { if (ehcidebug) logprintf x; } while (0) #define DPRINTFN(n,x) do { if (ehcidebug>(n)) logprintf x; } while (0) int ehcidebug = 0; SYSCTL_NODE(_hw_usb, OID_AUTO, ehci, CTLFLAG_RW, 0, "USB ehci"); SYSCTL_INT(_hw_usb_ehci, OID_AUTO, debug, CTLFLAG_RW, &ehcidebug, 0, "ehci debug level"); #ifndef __NetBSD__ #define bitmask_snprintf(q,f,b,l) snprintf((b), (l), "%b", (q), (f)) #endif #else #define DPRINTF(x) #define DPRINTFN(n,x) #endif struct ehci_pipe { struct usbd_pipe pipe; int nexttoggle; ehci_soft_qh_t *sqh; union { ehci_soft_qtd_t *qtd; /* ehci_soft_itd_t *itd; */ } tail; union { /* Control pipe */ struct { usb_dma_t reqdma; u_int length; /*ehci_soft_qtd_t *setup, *data, *stat;*/ } ctl; /* Interrupt pipe */ struct { u_int length; } intr; /* Bulk pipe */ struct { u_int length; } bulk; /* Iso pipe */ /* XXX */ } u; }; Static usbd_status ehci_open(usbd_pipe_handle); Static void ehci_poll(struct usbd_bus *); Static void ehci_softintr(void *); Static int ehci_intr1(ehci_softc_t *); Static void ehci_waitintr(ehci_softc_t *, usbd_xfer_handle); Static void ehci_check_intr(ehci_softc_t *, struct ehci_xfer *); Static void ehci_idone(struct ehci_xfer *); Static void ehci_timeout(void *); Static void ehci_timeout_task(void *); Static usbd_status ehci_allocm(struct usbd_bus *, usb_dma_t *, u_int32_t); Static void ehci_freem(struct usbd_bus *, usb_dma_t *); Static usbd_xfer_handle ehci_allocx(struct usbd_bus *); Static void ehci_freex(struct usbd_bus *, usbd_xfer_handle); Static usbd_status ehci_root_ctrl_transfer(usbd_xfer_handle); Static usbd_status ehci_root_ctrl_start(usbd_xfer_handle); Static void ehci_root_ctrl_abort(usbd_xfer_handle); Static void ehci_root_ctrl_close(usbd_pipe_handle); Static void ehci_root_ctrl_done(usbd_xfer_handle); Static usbd_status ehci_root_intr_transfer(usbd_xfer_handle); Static usbd_status ehci_root_intr_start(usbd_xfer_handle); Static void ehci_root_intr_abort(usbd_xfer_handle); Static void ehci_root_intr_close(usbd_pipe_handle); Static void ehci_root_intr_done(usbd_xfer_handle); Static usbd_status ehci_device_ctrl_transfer(usbd_xfer_handle); Static usbd_status ehci_device_ctrl_start(usbd_xfer_handle); Static void ehci_device_ctrl_abort(usbd_xfer_handle); Static void ehci_device_ctrl_close(usbd_pipe_handle); Static void ehci_device_ctrl_done(usbd_xfer_handle); Static usbd_status ehci_device_bulk_transfer(usbd_xfer_handle); Static usbd_status ehci_device_bulk_start(usbd_xfer_handle); Static void ehci_device_bulk_abort(usbd_xfer_handle); Static void ehci_device_bulk_close(usbd_pipe_handle); Static void ehci_device_bulk_done(usbd_xfer_handle); Static usbd_status ehci_device_intr_transfer(usbd_xfer_handle); Static usbd_status ehci_device_intr_start(usbd_xfer_handle); Static void ehci_device_intr_abort(usbd_xfer_handle); Static void ehci_device_intr_close(usbd_pipe_handle); Static void ehci_device_intr_done(usbd_xfer_handle); Static usbd_status ehci_device_isoc_transfer(usbd_xfer_handle); Static usbd_status ehci_device_isoc_start(usbd_xfer_handle); Static void ehci_device_isoc_abort(usbd_xfer_handle); Static void ehci_device_isoc_close(usbd_pipe_handle); Static void ehci_device_isoc_done(usbd_xfer_handle); Static void ehci_device_clear_toggle(usbd_pipe_handle pipe); Static void ehci_noop(usbd_pipe_handle pipe); Static int ehci_str(usb_string_descriptor_t *, int, char *); Static void ehci_pcd(ehci_softc_t *, usbd_xfer_handle); Static void ehci_pcd_able(ehci_softc_t *, int); Static void ehci_pcd_enable(void *); Static void ehci_disown(ehci_softc_t *, int, int); Static ehci_soft_qh_t *ehci_alloc_sqh(ehci_softc_t *); Static void ehci_free_sqh(ehci_softc_t *, ehci_soft_qh_t *); Static ehci_soft_qtd_t *ehci_alloc_sqtd(ehci_softc_t *); Static void ehci_free_sqtd(ehci_softc_t *, ehci_soft_qtd_t *); Static usbd_status ehci_alloc_sqtd_chain(struct ehci_pipe *, ehci_softc_t *, int, int, usbd_xfer_handle, ehci_soft_qtd_t **, ehci_soft_qtd_t **); Static void ehci_free_sqtd_chain(ehci_softc_t *, ehci_soft_qtd_t *, ehci_soft_qtd_t *); Static usbd_status ehci_device_request(usbd_xfer_handle xfer); Static usbd_status ehci_device_setintr(ehci_softc_t *, ehci_soft_qh_t *, int ival); Static void ehci_add_qh(ehci_soft_qh_t *, ehci_soft_qh_t *); Static void ehci_rem_qh(ehci_softc_t *, ehci_soft_qh_t *, ehci_soft_qh_t *); Static void ehci_set_qh_qtd(ehci_soft_qh_t *, ehci_soft_qtd_t *); Static void ehci_sync_hc(ehci_softc_t *); Static void ehci_close_pipe(usbd_pipe_handle, ehci_soft_qh_t *); Static void ehci_abort_xfer(usbd_xfer_handle, usbd_status); #ifdef EHCI_DEBUG Static void ehci_dump_regs(ehci_softc_t *); void ehci_dump(void); Static ehci_softc_t *theehci; Static void ehci_dump_link(ehci_link_t, int); Static void ehci_dump_sqtds(ehci_soft_qtd_t *); Static void ehci_dump_sqtd(ehci_soft_qtd_t *); Static void ehci_dump_qtd(ehci_qtd_t *); Static void ehci_dump_sqh(ehci_soft_qh_t *); #ifdef DIAGNOSTIC Static void ehci_dump_exfer(struct ehci_xfer *); #endif #endif #define EHCI_NULL htole32(EHCI_LINK_TERMINATE) #define EHCI_INTR_ENDPT 1 #define ehci_add_intr_list(sc, ex) \ LIST_INSERT_HEAD(&(sc)->sc_intrhead, (ex), inext); #define ehci_del_intr_list(ex) \ do { \ LIST_REMOVE((ex), inext); \ (ex)->inext.le_prev = NULL; \ } while (0) #define ehci_active_intr_list(ex) ((ex)->inext.le_prev != NULL) Static struct usbd_bus_methods ehci_bus_methods = { ehci_open, ehci_softintr, ehci_poll, ehci_allocm, ehci_freem, ehci_allocx, ehci_freex, }; Static struct usbd_pipe_methods ehci_root_ctrl_methods = { ehci_root_ctrl_transfer, ehci_root_ctrl_start, ehci_root_ctrl_abort, ehci_root_ctrl_close, ehci_noop, ehci_root_ctrl_done, }; Static struct usbd_pipe_methods ehci_root_intr_methods = { ehci_root_intr_transfer, ehci_root_intr_start, ehci_root_intr_abort, ehci_root_intr_close, ehci_noop, ehci_root_intr_done, }; Static struct usbd_pipe_methods ehci_device_ctrl_methods = { ehci_device_ctrl_transfer, ehci_device_ctrl_start, ehci_device_ctrl_abort, ehci_device_ctrl_close, ehci_noop, ehci_device_ctrl_done, }; Static struct usbd_pipe_methods ehci_device_intr_methods = { ehci_device_intr_transfer, ehci_device_intr_start, ehci_device_intr_abort, ehci_device_intr_close, ehci_device_clear_toggle, ehci_device_intr_done, }; Static struct usbd_pipe_methods ehci_device_bulk_methods = { ehci_device_bulk_transfer, ehci_device_bulk_start, ehci_device_bulk_abort, ehci_device_bulk_close, ehci_device_clear_toggle, ehci_device_bulk_done, }; Static struct usbd_pipe_methods ehci_device_isoc_methods = { ehci_device_isoc_transfer, ehci_device_isoc_start, ehci_device_isoc_abort, ehci_device_isoc_close, ehci_noop, ehci_device_isoc_done, }; usbd_status ehci_init(ehci_softc_t *sc) { u_int32_t version, sparams, cparams, hcr; u_int i; usbd_status err; ehci_soft_qh_t *sqh; u_int ncomp; int lev; DPRINTF(("ehci_init: start\n")); #ifdef EHCI_DEBUG theehci = sc; #endif sc->sc_offs = EREAD1(sc, EHCI_CAPLENGTH); version = EREAD2(sc, EHCI_HCIVERSION); printf("%s: EHCI version %x.%x\n", USBDEVNAME(sc->sc_bus.bdev), version >> 8, version & 0xff); sparams = EREAD4(sc, EHCI_HCSPARAMS); DPRINTF(("ehci_init: sparams=0x%x\n", sparams)); sc->sc_npcomp = EHCI_HCS_N_PCC(sparams); ncomp = EHCI_HCS_N_CC(sparams); if (ncomp != sc->sc_ncomp) { printf("%s: wrong number of companions (%d != %d)\n", USBDEVNAME(sc->sc_bus.bdev), ncomp, sc->sc_ncomp); if (ncomp < sc->sc_ncomp) sc->sc_ncomp = ncomp; } if (sc->sc_ncomp > 0) { printf("%s: companion controller%s, %d port%s each:", USBDEVNAME(sc->sc_bus.bdev), sc->sc_ncomp!=1 ? "s" : "", EHCI_HCS_N_PCC(sparams), EHCI_HCS_N_PCC(sparams)!=1 ? "s" : ""); for (i = 0; i < sc->sc_ncomp; i++) printf(" %s", USBDEVNAME(sc->sc_comps[i]->bdev)); printf("\n"); } sc->sc_noport = EHCI_HCS_N_PORTS(sparams); cparams = EREAD4(sc, EHCI_HCCPARAMS); DPRINTF(("ehci_init: cparams=0x%x\n", cparams)); if (EHCI_HCC_64BIT(cparams)) { /* MUST clear segment register if 64 bit capable. */ EWRITE4(sc, EHCI_CTRLDSSEGMENT, 0); } sc->sc_bus.usbrev = USBREV_2_0; /* Reset the controller */ DPRINTF(("%s: resetting\n", USBDEVNAME(sc->sc_bus.bdev))); EOWRITE4(sc, EHCI_USBCMD, 0); /* Halt controller */ usb_delay_ms(&sc->sc_bus, 1); EOWRITE4(sc, EHCI_USBCMD, EHCI_CMD_HCRESET); for (i = 0; i < 100; i++) { usb_delay_ms(&sc->sc_bus, 1); hcr = EOREAD4(sc, EHCI_USBCMD) & EHCI_CMD_HCRESET; if (!hcr) break; } if (hcr) { printf("%s: reset timeout\n", USBDEVNAME(sc->sc_bus.bdev)); return (USBD_IOERROR); } /* frame list size at default, read back what we got and use that */ switch (EHCI_CMD_FLS(EOREAD4(sc, EHCI_USBCMD))) { case 0: sc->sc_flsize = 1024; break; case 1: sc->sc_flsize = 512; break; case 2: sc->sc_flsize = 256; break; case 3: return (USBD_IOERROR); } err = usb_allocmem(&sc->sc_bus, sc->sc_flsize * sizeof(ehci_link_t), EHCI_FLALIGN_ALIGN, &sc->sc_fldma); if (err) return (err); DPRINTF(("%s: flsize=%d\n", USBDEVNAME(sc->sc_bus.bdev),sc->sc_flsize)); sc->sc_flist = KERNADDR(&sc->sc_fldma, 0); EOWRITE4(sc, EHCI_PERIODICLISTBASE, DMAADDR(&sc->sc_fldma, 0)); /* Set up the bus struct. */ sc->sc_bus.methods = &ehci_bus_methods; sc->sc_bus.pipe_size = sizeof(struct ehci_pipe); #if defined(__NetBSD__) || defined(__OpenBSD__) sc->sc_powerhook = powerhook_establish(ehci_power, sc); sc->sc_shutdownhook = shutdownhook_establish(ehci_shutdown, sc); #endif sc->sc_eintrs = EHCI_NORMAL_INTRS; /* * Allocate the interrupt dummy QHs. These are arranged to give * poll intervals that are powers of 2 times 1ms. */ for (i = 0; i < EHCI_INTRQHS; i++) { sqh = ehci_alloc_sqh(sc); if (sqh == NULL) { err = USBD_NOMEM; goto bad1; } sc->sc_islots[i].sqh = sqh; } lev = 0; for (i = 0; i < EHCI_INTRQHS; i++) { if (i == EHCI_IQHIDX(lev + 1, 0)) lev++; sqh = sc->sc_islots[i].sqh; if (i == 0) { /* The last (1ms) QH terminates. */ sqh->qh.qh_link = EHCI_NULL; sqh->next = NULL; } else { /* Otherwise the next QH has half the poll interval */ sqh->next = sc->sc_islots[EHCI_IQHIDX(lev - 1, i + 1)].sqh; sqh->qh.qh_link = htole32(sqh->next->physaddr | EHCI_LINK_QH); } sqh->qh.qh_endp = htole32(EHCI_QH_SET_EPS(EHCI_QH_SPEED_HIGH)); sqh->qh.qh_endphub = htole32(EHCI_QH_SET_MULT(1)); sqh->qh.qh_curqtd = EHCI_NULL; sqh->qh.qh_qtd.qtd_next = EHCI_NULL; sqh->qh.qh_qtd.qtd_altnext = EHCI_NULL; sqh->qh.qh_qtd.qtd_status = htole32(EHCI_QTD_HALTED); sqh->sqtd = NULL; } /* Point the frame list at the last level (128ms). */ for (i = 0; i < sc->sc_flsize; i++) { sc->sc_flist[i] = htole32(EHCI_LINK_QH | sc->sc_islots[EHCI_IQHIDX(EHCI_IPOLLRATES - 1, i)].sqh->physaddr); } /* Allocate dummy QH that starts the async list. */ sqh = ehci_alloc_sqh(sc); if (sqh == NULL) { err = USBD_NOMEM; goto bad1; } /* Fill the QH */ sqh->qh.qh_endp = htole32(EHCI_QH_SET_EPS(EHCI_QH_SPEED_HIGH) | EHCI_QH_HRECL); sqh->qh.qh_link = htole32(sqh->physaddr | EHCI_LINK_QH); sqh->qh.qh_curqtd = EHCI_NULL; sqh->prev = sqh; /*It's a circular list.. */ sqh->next = sqh; /* Fill the overlay qTD */ sqh->qh.qh_qtd.qtd_next = EHCI_NULL; sqh->qh.qh_qtd.qtd_altnext = EHCI_NULL; sqh->qh.qh_qtd.qtd_status = htole32(EHCI_QTD_HALTED); sqh->sqtd = NULL; #ifdef EHCI_DEBUG if (ehcidebug) { ehci_dump_sqh(sqh); } #endif /* Point to async list */ sc->sc_async_head = sqh; EOWRITE4(sc, EHCI_ASYNCLISTADDR, sqh->physaddr | EHCI_LINK_QH); usb_callout_init(sc->sc_tmo_pcd); lockinit(&sc->sc_doorbell_lock, PZERO, "ehcidb", 0, 0); /* Enable interrupts */ EOWRITE4(sc, EHCI_USBINTR, sc->sc_eintrs); /* Turn on controller */ EOWRITE4(sc, EHCI_USBCMD, EHCI_CMD_ITC_2 | /* 2 microframes interrupt delay */ (EOREAD4(sc, EHCI_USBCMD) & EHCI_CMD_FLS_M) | EHCI_CMD_ASE | EHCI_CMD_PSE | EHCI_CMD_RS); /* Take over port ownership */ EOWRITE4(sc, EHCI_CONFIGFLAG, EHCI_CONF_CF); for (i = 0; i < 100; i++) { usb_delay_ms(&sc->sc_bus, 1); hcr = EOREAD4(sc, EHCI_USBSTS) & EHCI_STS_HCH; if (!hcr) break; } if (hcr) { printf("%s: run timeout\n", USBDEVNAME(sc->sc_bus.bdev)); return (USBD_IOERROR); } return (USBD_NORMAL_COMPLETION); #if 0 bad2: ehci_free_sqh(sc, sc->sc_async_head); #endif bad1: usb_freemem(&sc->sc_bus, &sc->sc_fldma); return (err); } int ehci_intr(void *v) { ehci_softc_t *sc = v; if (sc == NULL || sc->sc_dying) return (0); /* If we get an interrupt while polling, then just ignore it. */ if (sc->sc_bus.use_polling) { u_int32_t intrs = EHCI_STS_INTRS(EOREAD4(sc, EHCI_USBSTS)); if (intrs) EOWRITE4(sc, EHCI_USBSTS, intrs); /* Acknowledge */ #ifdef DIAGNOSTIC DPRINTFN(16, ("ehci_intr: ignored interrupt while polling\n")); #endif return (0); } return (ehci_intr1(sc)); } Static int ehci_intr1(ehci_softc_t *sc) { u_int32_t intrs, eintrs; DPRINTFN(20,("ehci_intr1: enter\n")); /* In case the interrupt occurs before initialization has completed. */ if (sc == NULL) { #ifdef DIAGNOSTIC printf("ehci_intr1: sc == NULL\n"); #endif return (0); } intrs = EHCI_STS_INTRS(EOREAD4(sc, EHCI_USBSTS)); if (!intrs) return (0); eintrs = intrs & sc->sc_eintrs; DPRINTFN(7, ("ehci_intr1: sc=%p intrs=0x%x(0x%x) eintrs=0x%x\n", sc, (u_int)intrs, EOREAD4(sc, EHCI_USBSTS), (u_int)eintrs)); if (!eintrs) return (0); EOWRITE4(sc, EHCI_USBSTS, intrs); /* Acknowledge */ sc->sc_bus.intr_context++; sc->sc_bus.no_intrs++; if (eintrs & EHCI_STS_IAA) { DPRINTF(("ehci_intr1: door bell\n")); wakeup(&sc->sc_async_head); eintrs &= ~EHCI_STS_IAA; } if (eintrs & (EHCI_STS_INT | EHCI_STS_ERRINT)) { DPRINTFN(5,("ehci_intr1: %s %s\n", eintrs & EHCI_STS_INT ? "INT" : "", eintrs & EHCI_STS_ERRINT ? "ERRINT" : "")); usb_schedsoftintr(&sc->sc_bus); eintrs &= ~(EHCI_STS_INT | EHCI_STS_ERRINT); } if (eintrs & EHCI_STS_HSE) { printf("%s: unrecoverable error, controller halted\n", USBDEVNAME(sc->sc_bus.bdev)); /* XXX what else */ } if (eintrs & EHCI_STS_PCD) { ehci_pcd(sc, sc->sc_intrxfer); /* * Disable PCD interrupt for now, because it will be * on until the port has been reset. */ ehci_pcd_able(sc, 0); /* Do not allow RHSC interrupts > 1 per second */ usb_callout(sc->sc_tmo_pcd, hz, ehci_pcd_enable, sc); eintrs &= ~EHCI_STS_PCD; } sc->sc_bus.intr_context--; if (eintrs != 0) { /* Block unprocessed interrupts. */ sc->sc_eintrs &= ~eintrs; EOWRITE4(sc, EHCI_USBINTR, sc->sc_eintrs); printf("%s: blocking intrs 0x%x\n", USBDEVNAME(sc->sc_bus.bdev), eintrs); } return (1); } void ehci_pcd_able(ehci_softc_t *sc, int on) { DPRINTFN(4, ("ehci_pcd_able: on=%d\n", on)); if (on) sc->sc_eintrs |= EHCI_STS_PCD; else sc->sc_eintrs &= ~EHCI_STS_PCD; EOWRITE4(sc, EHCI_USBINTR, sc->sc_eintrs); } void ehci_pcd_enable(void *v_sc) { ehci_softc_t *sc = v_sc; ehci_pcd_able(sc, 1); } void ehci_pcd(ehci_softc_t *sc, usbd_xfer_handle xfer) { usbd_pipe_handle pipe; u_char *p; int i, m; if (xfer == NULL) { /* Just ignore the change. */ return; } pipe = xfer->pipe; p = KERNADDR(&xfer->dmabuf, 0); m = min(sc->sc_noport, xfer->length * 8 - 1); memset(p, 0, xfer->length); for (i = 1; i <= m; i++) { /* Pick out CHANGE bits from the status reg. */ if (EOREAD4(sc, EHCI_PORTSC(i)) & EHCI_PS_CLEAR) p[i/8] |= 1 << (i%8); } DPRINTF(("ehci_pcd: change=0x%02x\n", *p)); xfer->actlen = xfer->length; xfer->status = USBD_NORMAL_COMPLETION; usb_transfer_complete(xfer); } void ehci_softintr(void *v) { ehci_softc_t *sc = v; struct ehci_xfer *ex, *nextex; DPRINTFN(10,("%s: ehci_softintr (%d)\n", USBDEVNAME(sc->sc_bus.bdev), sc->sc_bus.intr_context)); sc->sc_bus.intr_context++; /* * The only explanation I can think of for why EHCI is as brain dead * as UHCI interrupt-wise is that Intel was involved in both. * An interrupt just tells us that something is done, we have no * clue what, so we need to scan through all active transfers. :-( */ for (ex = LIST_FIRST(&sc->sc_intrhead); ex; ex = nextex) { nextex = LIST_NEXT(ex, inext); ehci_check_intr(sc, ex); } #ifdef USB_USE_SOFTINTR if (sc->sc_softwake) { sc->sc_softwake = 0; wakeup(&sc->sc_softwake); } #endif /* USB_USE_SOFTINTR */ sc->sc_bus.intr_context--; } /* Check for an interrupt. */ void ehci_check_intr(ehci_softc_t *sc, struct ehci_xfer *ex) { ehci_soft_qtd_t *sqtd, *lsqtd; u_int32_t status; DPRINTFN(/*15*/2, ("ehci_check_intr: ex=%p\n", ex)); if (ex->sqtdstart == NULL) { printf("ehci_check_intr: sqtdstart=NULL\n"); return; } lsqtd = ex->sqtdend; #ifdef DIAGNOSTIC if (lsqtd == NULL) { printf("ehci_check_intr: lsqtd==0\n"); return; } #endif /* * If the last TD is still active we need to check whether there * is a an error somewhere in the middle, or whether there was a * short packet (SPD and not ACTIVE). */ if (le32toh(lsqtd->qtd.qtd_status) & EHCI_QTD_ACTIVE) { DPRINTFN(12, ("ehci_check_intr: active ex=%p\n", ex)); for (sqtd = ex->sqtdstart; sqtd != lsqtd; sqtd=sqtd->nextqtd) { status = le32toh(sqtd->qtd.qtd_status); /* If there's an active QTD the xfer isn't done. */ if (status & EHCI_QTD_ACTIVE) break; /* Any kind of error makes the xfer done. */ if (status & EHCI_QTD_HALTED) goto done; /* We want short packets, and it is short: it's done */ if (EHCI_QTD_GET_BYTES(status) != 0) goto done; } DPRINTFN(12, ("ehci_check_intr: ex=%p std=%p still active\n", ex, ex->sqtdstart)); return; } done: DPRINTFN(12, ("ehci_check_intr: ex=%p done\n", ex)); usb_uncallout(ex->xfer.timeout_handle, ehci_timeout, ex); usb_rem_task(ex->xfer.pipe->device, &ex->abort_task); ehci_idone(ex); } void ehci_idone(struct ehci_xfer *ex) { usbd_xfer_handle xfer = &ex->xfer; struct ehci_pipe *epipe = (struct ehci_pipe *)xfer->pipe; ehci_soft_qtd_t *sqtd, *lsqtd; u_int32_t status = 0, nstatus = 0; int actlen, cerr; u_int pkts_left; DPRINTFN(/*12*/2, ("ehci_idone: ex=%p\n", ex)); #ifdef DIAGNOSTIC { int s = splhigh(); if (ex->isdone) { splx(s); #ifdef EHCI_DEBUG printf("ehci_idone: ex is done!\n "); ehci_dump_exfer(ex); #else printf("ehci_idone: ex=%p is done!\n", ex); #endif return; } ex->isdone = 1; splx(s); } #endif if (xfer->status == USBD_CANCELLED || xfer->status == USBD_TIMEOUT) { DPRINTF(("ehci_idone: aborted xfer=%p\n", xfer)); return; } #ifdef EHCI_DEBUG DPRINTFN(/*10*/2, ("ehci_idone: xfer=%p, pipe=%p ready\n", xfer, epipe)); if (ehcidebug > 10) ehci_dump_sqtds(ex->sqtdstart); #endif /* The transfer is done, compute actual length and status. */ lsqtd = ex->sqtdend; actlen = 0; for (sqtd = ex->sqtdstart; sqtd != lsqtd->nextqtd; sqtd=sqtd->nextqtd) { nstatus = le32toh(sqtd->qtd.qtd_status); if (nstatus & EHCI_QTD_ACTIVE) break; status = nstatus; /* halt is ok if descriptor is last, and complete */ if (sqtd->qtd.qtd_next == EHCI_NULL && EHCI_QTD_GET_BYTES(status) == 0) status &= ~EHCI_QTD_HALTED; if (EHCI_QTD_GET_PID(status) != EHCI_QTD_PID_SETUP) actlen += sqtd->len - EHCI_QTD_GET_BYTES(status); } /* * If there are left over TDs we need to update the toggle. * The default pipe doesn't need it since control transfers * start the toggle at 0 every time. */ if (sqtd != lsqtd->nextqtd && xfer->pipe->device->default_pipe != xfer->pipe) { DPRINTF(("ehci_idone: need toggle update status=%08x nstatus=%08x\n", status, nstatus)); #if 0 ehci_dump_sqh(epipe->sqh); ehci_dump_sqtds(ex->sqtdstart); #endif epipe->nexttoggle = EHCI_QTD_GET_TOGGLE(nstatus); } /* * For a short transfer we need to update the toggle for the missing * packets within the qTD. */ pkts_left = EHCI_QTD_GET_BYTES(status) / UGETW(xfer->pipe->endpoint->edesc->wMaxPacketSize); epipe->nexttoggle ^= pkts_left % 2; cerr = EHCI_QTD_GET_CERR(status); DPRINTFN(/*10*/2, ("ehci_idone: len=%d, actlen=%d, cerr=%d, " "status=0x%x\n", xfer->length, actlen, cerr, status)); xfer->actlen = actlen; if ((status & EHCI_QTD_HALTED) != 0) { #ifdef EHCI_DEBUG char sbuf[128]; bitmask_snprintf((u_int32_t)status, "\20\7HALTED\6BUFERR\5BABBLE\4XACTERR" "\3MISSED\2SPLIT\1PING", sbuf, sizeof(sbuf)); DPRINTFN(2, ("ehci_idone: error, addr=%d, endpt=0x%02x, " "status 0x%s\n", xfer->pipe->device->address, xfer->pipe->endpoint->edesc->bEndpointAddress, sbuf)); if (ehcidebug > 2) { ehci_dump_sqh(epipe->sqh); ehci_dump_sqtds(ex->sqtdstart); } #endif if ((status & EHCI_QTD_BABBLE) == 0 && cerr > 0) xfer->status = USBD_STALLED; else xfer->status = USBD_IOERROR; /* more info XXX */ } else { xfer->status = USBD_NORMAL_COMPLETION; } usb_transfer_complete(xfer); DPRINTFN(/*12*/2, ("ehci_idone: ex=%p done\n", ex)); } /* * Wait here until controller claims to have an interrupt. * Then call ehci_intr and return. Use timeout to avoid waiting * too long. */ void ehci_waitintr(ehci_softc_t *sc, usbd_xfer_handle xfer) { int timo = xfer->timeout; int usecs; u_int32_t intrs; xfer->status = USBD_IN_PROGRESS; for (usecs = timo * 1000000 / hz; usecs > 0; usecs -= 1000) { usb_delay_ms(&sc->sc_bus, 1); if (sc->sc_dying) break; intrs = EHCI_STS_INTRS(EOREAD4(sc, EHCI_USBSTS)) & sc->sc_eintrs; DPRINTFN(15,("ehci_waitintr: 0x%04x\n", intrs)); #ifdef EHCI_DEBUG if (ehcidebug > 15) ehci_dump_regs(sc); #endif if (intrs) { ehci_intr1(sc); if (xfer->status != USBD_IN_PROGRESS) return; } } /* Timeout */ DPRINTF(("ehci_waitintr: timeout\n")); xfer->status = USBD_TIMEOUT; usb_transfer_complete(xfer); /* XXX should free TD */ } void ehci_poll(struct usbd_bus *bus) { ehci_softc_t *sc = (ehci_softc_t *)bus; #ifdef EHCI_DEBUG static int last; int new; new = EHCI_STS_INTRS(EOREAD4(sc, EHCI_USBSTS)); if (new != last) { DPRINTFN(10,("ehci_poll: intrs=0x%04x\n", new)); last = new; } #endif if (EOREAD4(sc, EHCI_USBSTS) & sc->sc_eintrs) ehci_intr1(sc); } int ehci_detach(struct ehci_softc *sc, int flags) { int rv = 0; #if defined(__NetBSD__) || defined(__OpenBSD__) if (sc->sc_child != NULL) rv = config_detach(sc->sc_child, flags); if (rv != 0) return (rv); #else sc->sc_dying = 1; #endif EOWRITE4(sc, EHCI_USBINTR, sc->sc_eintrs); EOWRITE4(sc, EHCI_USBCMD, 0); EOWRITE4(sc, EHCI_USBCMD, EHCI_CMD_HCRESET); usb_uncallout(sc->sc_tmo_pcd, ehci_pcd_enable, sc); #if defined(__NetBSD__) || defined(__OpenBSD__) if (sc->sc_powerhook != NULL) powerhook_disestablish(sc->sc_powerhook); if (sc->sc_shutdownhook != NULL) shutdownhook_disestablish(sc->sc_shutdownhook); #endif usb_delay_ms(&sc->sc_bus, 300); /* XXX let stray task complete */ usb_freemem(&sc->sc_bus, &sc->sc_fldma); /* XXX free other data structures XXX */ return (rv); } #if defined(__NetBSD__) || defined(__OpenBSD__) int ehci_activate(device_ptr_t self, enum devact act) { struct ehci_softc *sc = (struct ehci_softc *)self; int rv = 0; switch (act) { case DVACT_ACTIVATE: return (EOPNOTSUPP); case DVACT_DEACTIVATE: if (sc->sc_child != NULL) rv = config_deactivate(sc->sc_child); sc->sc_dying = 1; break; } return (rv); } #endif /* * Handle suspend/resume. * * We need to switch to polling mode here, because this routine is * called from an interrupt context. This is all right since we * are almost suspended anyway. */ void ehci_power(int why, void *v) { ehci_softc_t *sc = v; u_int32_t cmd, hcr; int s, i; #ifdef EHCI_DEBUG DPRINTF(("ehci_power: sc=%p, why=%d\n", sc, why)); if (ehcidebug > 0) ehci_dump_regs(sc); #endif s = splhardusb(); switch (why) { case PWR_SUSPEND: #if defined(__NetBSD__) || defined(__OpenBSD__) case PWR_STANDBY: #endif sc->sc_bus.use_polling++; for (i = 1; i <= sc->sc_noport; i++) { cmd = EOREAD4(sc, EHCI_PORTSC(i)); if ((cmd & EHCI_PS_PO) == 0 && (cmd & EHCI_PS_PE) == EHCI_PS_PE) EOWRITE4(sc, EHCI_PORTSC(i), cmd | EHCI_PS_SUSP); } sc->sc_cmd = EOREAD4(sc, EHCI_USBCMD); cmd = sc->sc_cmd & ~(EHCI_CMD_ASE | EHCI_CMD_PSE); EOWRITE4(sc, EHCI_USBCMD, cmd); for (i = 0; i < 100; i++) { hcr = EOREAD4(sc, EHCI_USBSTS) & (EHCI_STS_ASS | EHCI_STS_PSS); if (hcr == 0) break; usb_delay_ms(&sc->sc_bus, 1); } if (hcr != 0) { printf("%s: reset timeout\n", USBDEVNAME(sc->sc_bus.bdev)); } cmd &= ~EHCI_CMD_RS; EOWRITE4(sc, EHCI_USBCMD, cmd); for (i = 0; i < 100; i++) { hcr = EOREAD4(sc, EHCI_USBSTS) & EHCI_STS_HCH; if (hcr == EHCI_STS_HCH) break; usb_delay_ms(&sc->sc_bus, 1); } if (hcr != EHCI_STS_HCH) { printf("%s: config timeout\n", USBDEVNAME(sc->sc_bus.bdev)); } sc->sc_bus.use_polling--; break; case PWR_RESUME: sc->sc_bus.use_polling++; /* restore things in case the bios sucks */ EOWRITE4(sc, EHCI_CTRLDSSEGMENT, 0); EOWRITE4(sc, EHCI_PERIODICLISTBASE, DMAADDR(&sc->sc_fldma, 0)); EOWRITE4(sc, EHCI_ASYNCLISTADDR, sc->sc_async_head->physaddr | EHCI_LINK_QH); EOWRITE4(sc, EHCI_USBINTR, sc->sc_eintrs); hcr = 0; for (i = 1; i <= sc->sc_noport; i++) { cmd = EOREAD4(sc, EHCI_PORTSC(i)); if ((cmd & EHCI_PS_PO) == 0 && (cmd & EHCI_PS_SUSP) == EHCI_PS_SUSP) { EOWRITE4(sc, EHCI_PORTSC(i), cmd | EHCI_PS_FPR); hcr = 1; } } if (hcr) { usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); for (i = 1; i <= sc->sc_noport; i++) { cmd = EOREAD4(sc, EHCI_PORTSC(i)); if ((cmd & EHCI_PS_PO) == 0 && (cmd & EHCI_PS_SUSP) == EHCI_PS_SUSP) EOWRITE4(sc, EHCI_PORTSC(i), cmd & ~EHCI_PS_FPR); } } EOWRITE4(sc, EHCI_USBCMD, sc->sc_cmd); for (i = 0; i < 100; i++) { hcr = EOREAD4(sc, EHCI_USBSTS) & EHCI_STS_HCH; if (hcr != EHCI_STS_HCH) break; usb_delay_ms(&sc->sc_bus, 1); } if (hcr == EHCI_STS_HCH) { printf("%s: config timeout\n", USBDEVNAME(sc->sc_bus.bdev)); } usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); sc->sc_bus.use_polling--; break; #if defined(__NetBSD__) || defined(__OpenBSD__) case PWR_SOFTSUSPEND: case PWR_SOFTSTANDBY: case PWR_SOFTRESUME: break; #endif } splx(s); #ifdef EHCI_DEBUG DPRINTF(("ehci_power: sc=%p\n", sc)); if (ehcidebug > 0) ehci_dump_regs(sc); #endif } /* * Shut down the controller when the system is going down. */ void ehci_shutdown(void *v) { ehci_softc_t *sc = v; DPRINTF(("ehci_shutdown: stopping the HC\n")); EOWRITE4(sc, EHCI_USBCMD, 0); /* Halt controller */ EOWRITE4(sc, EHCI_USBCMD, EHCI_CMD_HCRESET); } usbd_status ehci_allocm(struct usbd_bus *bus, usb_dma_t *dma, u_int32_t size) { usbd_status err; err = usb_allocmem(bus, size, 0, dma); #ifdef EHCI_DEBUG if (err) printf("ehci_allocm: usb_allocmem()=%d\n", err); #endif return (err); } void ehci_freem(struct usbd_bus *bus, usb_dma_t *dma) { usb_freemem(bus, dma); } usbd_xfer_handle ehci_allocx(struct usbd_bus *bus) { struct ehci_softc *sc = (struct ehci_softc *)bus; usbd_xfer_handle xfer; xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); if (xfer != NULL) { SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, next); #ifdef DIAGNOSTIC if (xfer->busy_free != XFER_FREE) { printf("ehci_allocx: xfer=%p not free, 0x%08x\n", xfer, xfer->busy_free); } #endif } else { xfer = malloc(sizeof(struct ehci_xfer), M_USB, M_NOWAIT); } if (xfer != NULL) { memset(xfer, 0, sizeof(struct ehci_xfer)); usb_init_task(&EXFER(xfer)->abort_task, ehci_timeout_task, xfer); EXFER(xfer)->ehci_xfer_flags = 0; #ifdef DIAGNOSTIC EXFER(xfer)->isdone = 1; xfer->busy_free = XFER_BUSY; #endif } return (xfer); } void ehci_freex(struct usbd_bus *bus, usbd_xfer_handle xfer) { struct ehci_softc *sc = (struct ehci_softc *)bus; #ifdef DIAGNOSTIC if (xfer->busy_free != XFER_BUSY) { printf("ehci_freex: xfer=%p not busy, 0x%08x\n", xfer, xfer->busy_free); return; } xfer->busy_free = XFER_FREE; if (!EXFER(xfer)->isdone) { printf("ehci_freex: !isdone\n"); return; } #endif SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next); } Static void ehci_device_clear_toggle(usbd_pipe_handle pipe) { struct ehci_pipe *epipe = (struct ehci_pipe *)pipe; DPRINTF(("ehci_device_clear_toggle: epipe=%p status=0x%x\n", epipe, epipe->sqh->qh.qh_qtd.qtd_status)); #ifdef USB_DEBUG if (ehcidebug) usbd_dump_pipe(pipe); #endif epipe->nexttoggle = 0; } Static void ehci_noop(usbd_pipe_handle pipe) { } #ifdef EHCI_DEBUG void ehci_dump_regs(ehci_softc_t *sc) { int i; printf("cmd=0x%08x, sts=0x%08x, ien=0x%08x\n", EOREAD4(sc, EHCI_USBCMD), EOREAD4(sc, EHCI_USBSTS), EOREAD4(sc, EHCI_USBINTR)); printf("frindex=0x%08x ctrdsegm=0x%08x periodic=0x%08x async=0x%08x\n", EOREAD4(sc, EHCI_FRINDEX), EOREAD4(sc, EHCI_CTRLDSSEGMENT), EOREAD4(sc, EHCI_PERIODICLISTBASE), EOREAD4(sc, EHCI_ASYNCLISTADDR)); for (i = 1; i <= sc->sc_noport; i++) printf("port %d status=0x%08x\n", i, EOREAD4(sc, EHCI_PORTSC(i))); } /* * Unused function - this is meant to be called from a kernel * debugger. */ void ehci_dump() { ehci_dump_regs(theehci); } void ehci_dump_link(ehci_link_t link, int type) { link = le32toh(link); printf("0x%08x", link); if (link & EHCI_LINK_TERMINATE) printf(""); else { printf("<"); if (type) { switch (EHCI_LINK_TYPE(link)) { case EHCI_LINK_ITD: printf("ITD"); break; case EHCI_LINK_QH: printf("QH"); break; case EHCI_LINK_SITD: printf("SITD"); break; case EHCI_LINK_FSTN: printf("FSTN"); break; } } printf(">"); } } void ehci_dump_sqtds(ehci_soft_qtd_t *sqtd) { int i; u_int32_t stop; stop = 0; for (i = 0; sqtd && i < 20 && !stop; sqtd = sqtd->nextqtd, i++) { ehci_dump_sqtd(sqtd); stop = sqtd->qtd.qtd_next & htole32(EHCI_LINK_TERMINATE); } if (sqtd) printf("dump aborted, too many TDs\n"); } void ehci_dump_sqtd(ehci_soft_qtd_t *sqtd) { printf("QTD(%p) at 0x%08x:\n", sqtd, sqtd->physaddr); ehci_dump_qtd(&sqtd->qtd); } void ehci_dump_qtd(ehci_qtd_t *qtd) { u_int32_t s; char sbuf[128]; printf(" next="); ehci_dump_link(qtd->qtd_next, 0); printf(" altnext="); ehci_dump_link(qtd->qtd_altnext, 0); printf("\n"); s = le32toh(qtd->qtd_status); bitmask_snprintf(EHCI_QTD_GET_STATUS(s), "\20\10ACTIVE\7HALTED\6BUFERR\5BABBLE\4XACTERR" "\3MISSED\2SPLIT\1PING", sbuf, sizeof(sbuf)); printf(" status=0x%08x: toggle=%d bytes=0x%x ioc=%d c_page=0x%x\n", s, EHCI_QTD_GET_TOGGLE(s), EHCI_QTD_GET_BYTES(s), EHCI_QTD_GET_IOC(s), EHCI_QTD_GET_C_PAGE(s)); printf(" cerr=%d pid=%d stat=0x%s\n", EHCI_QTD_GET_CERR(s), EHCI_QTD_GET_PID(s), sbuf); for (s = 0; s < 5; s++) printf(" buffer[%d]=0x%08x\n", s, le32toh(qtd->qtd_buffer[s])); } void ehci_dump_sqh(ehci_soft_qh_t *sqh) { ehci_qh_t *qh = &sqh->qh; u_int32_t endp, endphub; printf("QH(%p) at 0x%08x:\n", sqh, sqh->physaddr); printf(" link="); ehci_dump_link(qh->qh_link, 1); printf("\n"); endp = le32toh(qh->qh_endp); printf(" endp=0x%08x\n", endp); printf(" addr=0x%02x inact=%d endpt=%d eps=%d dtc=%d hrecl=%d\n", EHCI_QH_GET_ADDR(endp), EHCI_QH_GET_INACT(endp), EHCI_QH_GET_ENDPT(endp), EHCI_QH_GET_EPS(endp), EHCI_QH_GET_DTC(endp), EHCI_QH_GET_HRECL(endp)); printf(" mpl=0x%x ctl=%d nrl=%d\n", EHCI_QH_GET_MPL(endp), EHCI_QH_GET_CTL(endp), EHCI_QH_GET_NRL(endp)); endphub = le32toh(qh->qh_endphub); printf(" endphub=0x%08x\n", endphub); printf(" smask=0x%02x cmask=0x%02x huba=0x%02x port=%d mult=%d\n", EHCI_QH_GET_SMASK(endphub), EHCI_QH_GET_CMASK(endphub), EHCI_QH_GET_HUBA(endphub), EHCI_QH_GET_PORT(endphub), EHCI_QH_GET_MULT(endphub)); printf(" curqtd="); ehci_dump_link(qh->qh_curqtd, 0); printf("\n"); printf("Overlay qTD:\n"); ehci_dump_qtd(&qh->qh_qtd); } #ifdef DIAGNOSTIC Static void ehci_dump_exfer(struct ehci_xfer *ex) { printf("ehci_dump_exfer: ex=%p\n", ex); } #endif #endif usbd_status ehci_open(usbd_pipe_handle pipe) { usbd_device_handle dev = pipe->device; ehci_softc_t *sc = (ehci_softc_t *)dev->bus; usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; u_int8_t addr = dev->address; u_int8_t xfertype = ed->bmAttributes & UE_XFERTYPE; struct ehci_pipe *epipe = (struct ehci_pipe *)pipe; ehci_soft_qh_t *sqh; usbd_status err; int s; int ival, speed, naks; int hshubaddr, hshubport; DPRINTFN(1, ("ehci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", pipe, addr, ed->bEndpointAddress, sc->sc_addr)); if (dev->myhsport) { hshubaddr = dev->myhsport->parent->address; hshubport = dev->myhsport->portno; } else { hshubaddr = 0; hshubport = 0; } if (sc->sc_dying) return (USBD_IOERROR); epipe->nexttoggle = 0; if (addr == sc->sc_addr) { switch (ed->bEndpointAddress) { case USB_CONTROL_ENDPOINT: pipe->methods = &ehci_root_ctrl_methods; break; case UE_DIR_IN | EHCI_INTR_ENDPT: pipe->methods = &ehci_root_intr_methods; break; default: return (USBD_INVAL); } return (USBD_NORMAL_COMPLETION); } /* XXX All this stuff is only valid for async. */ switch (dev->speed) { case USB_SPEED_LOW: speed = EHCI_QH_SPEED_LOW; break; case USB_SPEED_FULL: speed = EHCI_QH_SPEED_FULL; break; case USB_SPEED_HIGH: speed = EHCI_QH_SPEED_HIGH; break; default: panic("ehci_open: bad device speed %d", dev->speed); } if (speed != EHCI_QH_SPEED_HIGH && xfertype == UE_ISOCHRONOUS) { printf("%s: *** WARNING: opening low/full speed device, this " "does not work yet.\n", USBDEVNAME(sc->sc_bus.bdev)); DPRINTFN(1,("ehci_open: hshubaddr=%d hshubport=%d\n", hshubaddr, hshubport)); return USBD_INVAL; } naks = 8; /* XXX */ sqh = ehci_alloc_sqh(sc); if (sqh == NULL) goto bad0; /* qh_link filled when the QH is added */ sqh->qh.qh_endp = htole32( EHCI_QH_SET_ADDR(addr) | EHCI_QH_SET_ENDPT(UE_GET_ADDR(ed->bEndpointAddress)) | EHCI_QH_SET_EPS(speed) | EHCI_QH_DTC | EHCI_QH_SET_MPL(UGETW(ed->wMaxPacketSize)) | (speed != EHCI_QH_SPEED_HIGH && xfertype == UE_CONTROL ? EHCI_QH_CTL : 0) | EHCI_QH_SET_NRL(naks) ); sqh->qh.qh_endphub = htole32( EHCI_QH_SET_MULT(1) | EHCI_QH_SET_HUBA(hshubaddr) | EHCI_QH_SET_PORT(hshubport) | EHCI_QH_SET_CMASK(0x1c) | EHCI_QH_SET_SMASK(xfertype == UE_INTERRUPT ? 0x01 : 0) ); sqh->qh.qh_curqtd = EHCI_NULL; /* Fill the overlay qTD */ sqh->qh.qh_qtd.qtd_next = EHCI_NULL; sqh->qh.qh_qtd.qtd_altnext = EHCI_NULL; sqh->qh.qh_qtd.qtd_status = htole32(0); epipe->sqh = sqh; switch (xfertype) { case UE_CONTROL: err = usb_allocmem(&sc->sc_bus, sizeof(usb_device_request_t), 0, &epipe->u.ctl.reqdma); #ifdef EHCI_DEBUG if (err) printf("ehci_open: usb_allocmem()=%d\n", err); #endif if (err) goto bad1; pipe->methods = &ehci_device_ctrl_methods; s = splusb(); ehci_add_qh(sqh, sc->sc_async_head); splx(s); break; case UE_BULK: pipe->methods = &ehci_device_bulk_methods; s = splusb(); ehci_add_qh(sqh, sc->sc_async_head); splx(s); break; case UE_INTERRUPT: pipe->methods = &ehci_device_intr_methods; ival = pipe->interval; if (ival == USBD_DEFAULT_INTERVAL) ival = ed->bInterval; return (ehci_device_setintr(sc, sqh, ival)); case UE_ISOCHRONOUS: pipe->methods = &ehci_device_isoc_methods; return (USBD_INVAL); default: return (USBD_INVAL); } return (USBD_NORMAL_COMPLETION); bad1: ehci_free_sqh(sc, sqh); bad0: return (USBD_NOMEM); } /* * Add an ED to the schedule. Called at splusb(). * If in the async schedule, it will always have a next. * If in the intr schedule it may not. */ void ehci_add_qh(ehci_soft_qh_t *sqh, ehci_soft_qh_t *head) { SPLUSBCHECK; sqh->next = head->next; sqh->prev = head; sqh->qh.qh_link = head->qh.qh_link; head->next = sqh; if (sqh->next) sqh->next->prev = sqh; head->qh.qh_link = htole32(sqh->physaddr | EHCI_LINK_QH); #ifdef EHCI_DEBUG if (ehcidebug > 5) { printf("ehci_add_qh:\n"); ehci_dump_sqh(sqh); } #endif } /* * Remove an ED from the schedule. Called at splusb(). * Will always have a 'next' if it's in the async list as it's circular. */ void ehci_rem_qh(ehci_softc_t *sc, ehci_soft_qh_t *sqh, ehci_soft_qh_t *head) { SPLUSBCHECK; /* XXX */ sqh->prev->qh.qh_link = sqh->qh.qh_link; sqh->prev->next = sqh->next; if (sqh->next) sqh->next->prev = sqh->prev; ehci_sync_hc(sc); } void ehci_set_qh_qtd(ehci_soft_qh_t *sqh, ehci_soft_qtd_t *sqtd) { int i; u_int32_t status; /* Save toggle bit and ping status. */ status = sqh->qh.qh_qtd.qtd_status & htole32(EHCI_QTD_TOGGLE_MASK | EHCI_QTD_SET_STATUS(EHCI_QTD_PINGSTATE)); /* Set HALTED to make hw leave it alone. */ sqh->qh.qh_qtd.qtd_status = htole32(EHCI_QTD_SET_STATUS(EHCI_QTD_HALTED)); sqh->qh.qh_curqtd = 0; sqh->qh.qh_qtd.qtd_next = htole32(sqtd->physaddr); sqh->qh.qh_qtd.qtd_altnext = 0; for (i = 0; i < EHCI_QTD_NBUFFERS; i++) sqh->qh.qh_qtd.qtd_buffer[i] = 0; sqh->sqtd = sqtd; /* Set !HALTED && !ACTIVE to start execution, preserve some fields */ sqh->qh.qh_qtd.qtd_status = status; } /* * Ensure that the HC has released all references to the QH. We do this * by asking for a Async Advance Doorbell interrupt and then we wait for * the interrupt. * To make this easier we first obtain exclusive use of the doorbell. */ void ehci_sync_hc(ehci_softc_t *sc) { int s, error; if (sc->sc_dying) { DPRINTFN(2,("ehci_sync_hc: dying\n")); return; } DPRINTFN(2,("ehci_sync_hc: enter\n")); /* get doorbell */ lockmgr(&sc->sc_doorbell_lock, LK_EXCLUSIVE, NULL, NULL); s = splhardusb(); /* ask for doorbell */ EOWRITE4(sc, EHCI_USBCMD, EOREAD4(sc, EHCI_USBCMD) | EHCI_CMD_IAAD); DPRINTFN(1,("ehci_sync_hc: cmd=0x%08x sts=0x%08x\n", EOREAD4(sc, EHCI_USBCMD), EOREAD4(sc, EHCI_USBSTS))); error = tsleep(&sc->sc_async_head, PZERO, "ehcidi", hz); /* bell wait */ DPRINTFN(1,("ehci_sync_hc: cmd=0x%08x sts=0x%08x\n", EOREAD4(sc, EHCI_USBCMD), EOREAD4(sc, EHCI_USBSTS))); splx(s); /* release doorbell */ lockmgr(&sc->sc_doorbell_lock, LK_RELEASE, NULL, NULL); #ifdef DIAGNOSTIC if (error) printf("ehci_sync_hc: tsleep() = %d\n", error); #endif DPRINTFN(2,("ehci_sync_hc: exit\n")); } /***********/ /* * Data structures and routines to emulate the root hub. */ Static usb_device_descriptor_t ehci_devd = { USB_DEVICE_DESCRIPTOR_SIZE, UDESC_DEVICE, /* type */ {0x00, 0x02}, /* USB version */ UDCLASS_HUB, /* class */ UDSUBCLASS_HUB, /* subclass */ UDPROTO_HSHUBSTT, /* protocol */ 64, /* max packet */ {0},{0},{0x00,0x01}, /* device id */ 1,2,0, /* string indicies */ 1 /* # of configurations */ }; Static usb_device_qualifier_t ehci_odevd = { USB_DEVICE_DESCRIPTOR_SIZE, UDESC_DEVICE_QUALIFIER, /* type */ {0x00, 0x02}, /* USB version */ UDCLASS_HUB, /* class */ UDSUBCLASS_HUB, /* subclass */ UDPROTO_FSHUB, /* protocol */ 64, /* max packet */ 1, /* # of configurations */ 0 }; Static usb_config_descriptor_t ehci_confd = { USB_CONFIG_DESCRIPTOR_SIZE, UDESC_CONFIG, {USB_CONFIG_DESCRIPTOR_SIZE + USB_INTERFACE_DESCRIPTOR_SIZE + USB_ENDPOINT_DESCRIPTOR_SIZE}, 1, 1, 0, UC_SELF_POWERED, 0 /* max power */ }; Static usb_interface_descriptor_t ehci_ifcd = { USB_INTERFACE_DESCRIPTOR_SIZE, UDESC_INTERFACE, 0, 0, 1, UICLASS_HUB, UISUBCLASS_HUB, UIPROTO_HSHUBSTT, 0 }; Static usb_endpoint_descriptor_t ehci_endpd = { USB_ENDPOINT_DESCRIPTOR_SIZE, UDESC_ENDPOINT, UE_DIR_IN | EHCI_INTR_ENDPT, UE_INTERRUPT, {8, 0}, /* max packet */ 255 }; Static usb_hub_descriptor_t ehci_hubd = { USB_HUB_DESCRIPTOR_SIZE, UDESC_HUB, 0, {0,0}, 0, 0, {0}, }; Static int ehci_str(usb_string_descriptor_t *p, int l, char *s) { int i; if (l == 0) return (0); p->bLength = 2 * strlen(s) + 2; if (l == 1) return (1); p->bDescriptorType = UDESC_STRING; l -= 2; for (i = 0; s[i] && l > 1; i++, l -= 2) USETW2(p->bString[i], 0, s[i]); return (2*i+2); } /* * Simulate a hardware hub by handling all the necessary requests. */ Static usbd_status ehci_root_ctrl_transfer(usbd_xfer_handle xfer) { usbd_status err; /* Insert last in queue. */ err = usb_insert_transfer(xfer); if (err) return (err); /* Pipe isn't running, start first */ return (ehci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); } Static usbd_status ehci_root_ctrl_start(usbd_xfer_handle xfer) { ehci_softc_t *sc = (ehci_softc_t *)xfer->pipe->device->bus; usb_device_request_t *req; void *buf = NULL; int port, i; int s, len, value, index, l, totlen = 0; usb_port_status_t ps; usb_hub_descriptor_t hubd; usbd_status err; u_int32_t v; if (sc->sc_dying) return (USBD_IOERROR); #ifdef DIAGNOSTIC if (!(xfer->rqflags & URQ_REQUEST)) /* XXX panic */ return (USBD_INVAL); #endif req = &xfer->request; DPRINTFN(4,("ehci_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(8,("ehci_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(ehci_devd.idVendor, sc->sc_id_vendor); memcpy(buf, &ehci_devd, l); break; /* * We can't really operate at another speed, but the spec says * we need this descriptor. */ case UDESC_DEVICE_QUALIFIER: if ((value & 0xff) != 0) { err = USBD_IOERROR; goto ret; } totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); memcpy(buf, &ehci_odevd, l); break; /* * We can't really operate at another speed, but the spec says * we need this descriptor. */ case UDESC_OTHER_SPEED_CONFIGURATION: case UDESC_CONFIG: if ((value & 0xff) != 0) { err = USBD_IOERROR; goto ret; } totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); memcpy(buf, &ehci_confd, l); ((usb_config_descriptor_t *)buf)->bDescriptorType = value >> 8; buf = (char *)buf + l; len -= l; l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); totlen += l; memcpy(buf, &ehci_ifcd, l); buf = (char *)buf + l; len -= l; l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); totlen += l; memcpy(buf, &ehci_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 = ehci_str(buf, len, "\001"); break; case 1: /* Vendor */ totlen = ehci_str(buf, len, sc->sc_vendor); break; case 2: /* Product */ totlen = ehci_str(buf, len, "EHCI 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; } sc->sc_addr = value; 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(8, ("ehci_root_ctrl_start: UR_CLEAR_PORT_FEATURE " "port=%d feature=%d\n", index, value)); if (index < 1 || index > sc->sc_noport) { err = USBD_IOERROR; goto ret; } port = EHCI_PORTSC(index); v = EOREAD4(sc, port) &~ EHCI_PS_CLEAR; switch(value) { case UHF_PORT_ENABLE: EOWRITE4(sc, port, v &~ EHCI_PS_PE); break; case UHF_PORT_SUSPEND: EOWRITE4(sc, port, v &~ EHCI_PS_SUSP); break; case UHF_PORT_POWER: EOWRITE4(sc, port, v &~ EHCI_PS_PP); break; case UHF_PORT_TEST: DPRINTFN(2,("ehci_root_ctrl_start: clear port test " "%d\n", index)); break; case UHF_PORT_INDICATOR: DPRINTFN(2,("ehci_root_ctrl_start: clear port ind " "%d\n", index)); EOWRITE4(sc, port, v &~ EHCI_PS_PIC); break; case UHF_C_PORT_CONNECTION: EOWRITE4(sc, port, v | EHCI_PS_CSC); break; case UHF_C_PORT_ENABLE: EOWRITE4(sc, port, v | EHCI_PS_PEC); break; case UHF_C_PORT_SUSPEND: /* how? */ break; case UHF_C_PORT_OVER_CURRENT: EOWRITE4(sc, port, v | EHCI_PS_OCC); break; case UHF_C_PORT_RESET: sc->sc_isreset = 0; break; default: err = USBD_IOERROR; goto ret; } #if 0 switch(value) { case UHF_C_PORT_CONNECTION: case UHF_C_PORT_ENABLE: case UHF_C_PORT_SUSPEND: case UHF_C_PORT_OVER_CURRENT: case UHF_C_PORT_RESET: /* Enable RHSC interrupt if condition is cleared. */ if ((OREAD4(sc, port) >> 16) == 0) ehci_pcd_able(sc, 1); break; default: break; } #endif break; case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): if ((value & 0xff) != 0) { err = USBD_IOERROR; goto ret; } hubd = ehci_hubd; hubd.bNbrPorts = sc->sc_noport; v = EOREAD4(sc, EHCI_HCSPARAMS); USETW(hubd.wHubCharacteristics, EHCI_HCS_PPC(v) ? UHD_PWR_INDIVIDUAL : UHD_PWR_NO_SWITCH | EHCI_HCS_P_INDICATOR(EREAD4(sc, EHCI_HCSPARAMS)) ? UHD_PORT_IND : 0); hubd.bPwrOn2PwrGood = 200; /* XXX can't find out? */ for (i = 0, l = sc->sc_noport; l > 0; i++, l -= 8, v >>= 8) hubd.DeviceRemovable[i++] = 0; /* XXX can't find out? */ hubd.bDescLength = USB_HUB_DESCRIPTOR_SIZE + i; l = min(len, hubd.bDescLength); totlen = l; memcpy(buf, &hubd, l); break; case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): if (len != 4) { err = USBD_IOERROR; goto ret; } memset(buf, 0, len); /* ? XXX */ totlen = len; break; case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): DPRINTFN(8,("ehci_root_ctrl_start: get port status i=%d\n", index)); if (index < 1 || index > sc->sc_noport) { err = USBD_IOERROR; goto ret; } if (len != 4) { err = USBD_IOERROR; goto ret; } v = EOREAD4(sc, EHCI_PORTSC(index)); DPRINTFN(8,("ehci_root_ctrl_start: port status=0x%04x\n", v)); i = UPS_HIGH_SPEED; if (v & EHCI_PS_CS) i |= UPS_CURRENT_CONNECT_STATUS; if (v & EHCI_PS_PE) i |= UPS_PORT_ENABLED; if (v & EHCI_PS_SUSP) i |= UPS_SUSPEND; if (v & EHCI_PS_OCA) i |= UPS_OVERCURRENT_INDICATOR; if (v & EHCI_PS_PR) i |= UPS_RESET; if (v & EHCI_PS_PP) i |= UPS_PORT_POWER; USETW(ps.wPortStatus, i); i = 0; if (v & EHCI_PS_CSC) i |= UPS_C_CONNECT_STATUS; if (v & EHCI_PS_PEC) i |= UPS_C_PORT_ENABLED; if (v & EHCI_PS_OCC) i |= UPS_C_OVERCURRENT_INDICATOR; if (sc->sc_isreset) i |= UPS_C_PORT_RESET; USETW(ps.wPortChange, i); 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 || index > sc->sc_noport) { err = USBD_IOERROR; goto ret; } port = EHCI_PORTSC(index); v = EOREAD4(sc, port) &~ EHCI_PS_CLEAR; switch(value) { case UHF_PORT_ENABLE: EOWRITE4(sc, port, v | EHCI_PS_PE); break; case UHF_PORT_SUSPEND: EOWRITE4(sc, port, v | EHCI_PS_SUSP); break; case UHF_PORT_RESET: DPRINTFN(5,("ehci_root_ctrl_start: reset port %d\n", index)); if (EHCI_PS_IS_LOWSPEED(v)) { /* Low speed device, give up ownership. */ ehci_disown(sc, index, 1); break; } /* Start reset sequence. */ v &= ~ (EHCI_PS_PE | EHCI_PS_PR); EOWRITE4(sc, port, v | EHCI_PS_PR); /* Wait for reset to complete. */ usb_delay_ms(&sc->sc_bus, USB_PORT_ROOT_RESET_DELAY); if (sc->sc_dying) { err = USBD_IOERROR; goto ret; } /* Terminate reset sequence. */ EOWRITE4(sc, port, v); /* Wait for HC to complete reset. */ usb_delay_ms(&sc->sc_bus, EHCI_PORT_RESET_COMPLETE); if (sc->sc_dying) { err = USBD_IOERROR; goto ret; } v = EOREAD4(sc, port); DPRINTF(("ehci after reset, status=0x%08x\n", v)); if (v & EHCI_PS_PR) { printf("%s: port reset timeout\n", USBDEVNAME(sc->sc_bus.bdev)); return (USBD_TIMEOUT); } if (!(v & EHCI_PS_PE)) { /* Not a high speed device, give up ownership.*/ ehci_disown(sc, index, 0); break; } sc->sc_isreset = 1; DPRINTF(("ehci port %d reset, status = 0x%08x\n", index, v)); break; case UHF_PORT_POWER: DPRINTFN(2,("ehci_root_ctrl_start: set port power " "%d\n", index)); EOWRITE4(sc, port, v | EHCI_PS_PP); break; case UHF_PORT_TEST: DPRINTFN(2,("ehci_root_ctrl_start: set port test " "%d\n", index)); break; case UHF_PORT_INDICATOR: DPRINTFN(2,("ehci_root_ctrl_start: set port ind " "%d\n", index)); EOWRITE4(sc, port, v | EHCI_PS_PIC); break; default: err = USBD_IOERROR; goto ret; } break; case C(UR_CLEAR_TT_BUFFER, UT_WRITE_CLASS_OTHER): case C(UR_RESET_TT, UT_WRITE_CLASS_OTHER): case C(UR_GET_TT_STATE, UT_READ_CLASS_OTHER): case C(UR_STOP_TT, UT_WRITE_CLASS_OTHER): 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 (USBD_IN_PROGRESS); } void ehci_disown(ehci_softc_t *sc, int index, int lowspeed) { int port; u_int32_t v; DPRINTF(("ehci_disown: index=%d lowspeed=%d\n", index, lowspeed)); #ifdef DIAGNOSTIC if (sc->sc_npcomp != 0) { int i = (index-1) / sc->sc_npcomp; if (i >= sc->sc_ncomp) printf("%s: strange port\n", USBDEVNAME(sc->sc_bus.bdev)); else printf("%s: handing over %s speed device on " "port %d to %s\n", USBDEVNAME(sc->sc_bus.bdev), lowspeed ? "low" : "full", index, USBDEVNAME(sc->sc_comps[i]->bdev)); } else { printf("%s: npcomp == 0\n", USBDEVNAME(sc->sc_bus.bdev)); } #endif port = EHCI_PORTSC(index); v = EOREAD4(sc, port) &~ EHCI_PS_CLEAR; EOWRITE4(sc, port, v | EHCI_PS_PO); } /* Abort a root control request. */ Static void ehci_root_ctrl_abort(usbd_xfer_handle xfer) { /* Nothing to do, all transfers are synchronous. */ } /* Close the root pipe. */ Static void ehci_root_ctrl_close(usbd_pipe_handle pipe) { DPRINTF(("ehci_root_ctrl_close\n")); /* Nothing to do. */ } void ehci_root_intr_done(usbd_xfer_handle xfer) { } Static usbd_status ehci_root_intr_transfer(usbd_xfer_handle xfer) { usbd_status err; /* Insert last in queue. */ err = usb_insert_transfer(xfer); if (err) return (err); /* Pipe isn't running, start first */ return (ehci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); } Static usbd_status ehci_root_intr_start(usbd_xfer_handle xfer) { usbd_pipe_handle pipe = xfer->pipe; ehci_softc_t *sc = (ehci_softc_t *)pipe->device->bus; if (sc->sc_dying) return (USBD_IOERROR); sc->sc_intrxfer = xfer; return (USBD_IN_PROGRESS); } /* Abort a root interrupt request. */ Static void ehci_root_intr_abort(usbd_xfer_handle xfer) { int s; if (xfer->pipe->intrxfer == xfer) { DPRINTF(("ehci_root_intr_abort: remove\n")); xfer->pipe->intrxfer = NULL; } xfer->status = USBD_CANCELLED; s = splusb(); usb_transfer_complete(xfer); splx(s); } /* Close the root pipe. */ Static void ehci_root_intr_close(usbd_pipe_handle pipe) { ehci_softc_t *sc = (ehci_softc_t *)pipe->device->bus; DPRINTF(("ehci_root_intr_close\n")); sc->sc_intrxfer = NULL; } void ehci_root_ctrl_done(usbd_xfer_handle xfer) { } /************************/ ehci_soft_qh_t * ehci_alloc_sqh(ehci_softc_t *sc) { ehci_soft_qh_t *sqh; usbd_status err; int i, offs; usb_dma_t dma; if (sc->sc_freeqhs == NULL) { DPRINTFN(2, ("ehci_alloc_sqh: allocating chunk\n")); err = usb_allocmem(&sc->sc_bus, EHCI_SQH_SIZE * EHCI_SQH_CHUNK, EHCI_PAGE_SIZE, &dma); #ifdef EHCI_DEBUG if (err) printf("ehci_alloc_sqh: usb_allocmem()=%d\n", err); #endif if (err) return (NULL); for(i = 0; i < EHCI_SQH_CHUNK; i++) { offs = i * EHCI_SQH_SIZE; sqh = KERNADDR(&dma, offs); sqh->physaddr = DMAADDR(&dma, offs); sqh->next = sc->sc_freeqhs; sc->sc_freeqhs = sqh; } } sqh = sc->sc_freeqhs; sc->sc_freeqhs = sqh->next; memset(&sqh->qh, 0, sizeof(ehci_qh_t)); sqh->next = NULL; sqh->prev = NULL; return (sqh); } void ehci_free_sqh(ehci_softc_t *sc, ehci_soft_qh_t *sqh) { sqh->next = sc->sc_freeqhs; sc->sc_freeqhs = sqh; } ehci_soft_qtd_t * ehci_alloc_sqtd(ehci_softc_t *sc) { ehci_soft_qtd_t *sqtd; usbd_status err; int i, offs; usb_dma_t dma; int s; if (sc->sc_freeqtds == NULL) { DPRINTFN(2, ("ehci_alloc_sqtd: allocating chunk\n")); err = usb_allocmem(&sc->sc_bus, EHCI_SQTD_SIZE*EHCI_SQTD_CHUNK, EHCI_PAGE_SIZE, &dma); #ifdef EHCI_DEBUG if (err) printf("ehci_alloc_sqtd: usb_allocmem()=%d\n", err); #endif if (err) return (NULL); s = splusb(); for(i = 0; i < EHCI_SQTD_CHUNK; i++) { offs = i * EHCI_SQTD_SIZE; sqtd = KERNADDR(&dma, offs); sqtd->physaddr = DMAADDR(&dma, offs); sqtd->nextqtd = sc->sc_freeqtds; sc->sc_freeqtds = sqtd; } splx(s); } s = splusb(); sqtd = sc->sc_freeqtds; sc->sc_freeqtds = sqtd->nextqtd; memset(&sqtd->qtd, 0, sizeof(ehci_qtd_t)); sqtd->nextqtd = NULL; sqtd->xfer = NULL; splx(s); return (sqtd); } void ehci_free_sqtd(ehci_softc_t *sc, ehci_soft_qtd_t *sqtd) { int s; s = splusb(); sqtd->nextqtd = sc->sc_freeqtds; sc->sc_freeqtds = sqtd; splx(s); } usbd_status ehci_alloc_sqtd_chain(struct ehci_pipe *epipe, ehci_softc_t *sc, int alen, int rd, usbd_xfer_handle xfer, ehci_soft_qtd_t **sp, ehci_soft_qtd_t **ep) { ehci_soft_qtd_t *next, *cur; ehci_physaddr_t dataphys, dataphyspage, dataphyslastpage, nextphys; u_int32_t qtdstatus; int len, curlen, mps, offset; int i, tog; usb_dma_t *dma = &xfer->dmabuf; DPRINTFN(alen<4*4096,("ehci_alloc_sqtd_chain: start len=%d\n", alen)); offset = 0; len = alen; dataphys = DMAADDR(dma, 0); dataphyslastpage = EHCI_PAGE(DMAADDR(dma, len - 1)); #if 0 printf("status=%08x toggle=%d\n", epipe->sqh->qh.qh_qtd.qtd_status, epipe->nexttoggle); #endif qtdstatus = EHCI_QTD_ACTIVE | EHCI_QTD_SET_PID(rd ? EHCI_QTD_PID_IN : EHCI_QTD_PID_OUT) | EHCI_QTD_SET_CERR(3) /* IOC set below */ /* BYTES set below */ ; mps = UGETW(epipe->pipe.endpoint->edesc->wMaxPacketSize); tog = epipe->nexttoggle; qtdstatus |= EHCI_QTD_SET_TOGGLE(tog); cur = ehci_alloc_sqtd(sc); *sp = cur; if (cur == NULL) goto nomem; for (;;) { dataphyspage = EHCI_PAGE(dataphys); /* The EHCI hardware can handle at most 5 pages. */ #if defined(__NetBSD__) || defined(__OpenBSD__) if (dataphyslastpage - dataphyspage < EHCI_QTD_NBUFFERS * EHCI_PAGE_SIZE) { /* we can handle it in this QTD */ curlen = len; } #elif defined(__FreeBSD__) /* XXX This is pretty broken: Because we do not allocate * a contiguous buffer (contiguous in physical pages) we * can only transfer one page in one go. * So check whether the start and end of the buffer are on * the same page. */ if (dataphyspage == dataphyslastpage) { curlen = len; } #endif else { #if defined(__NetBSD__) || defined(__OpenBSD__) /* must use multiple TDs, fill as much as possible. */ curlen = EHCI_QTD_NBUFFERS * EHCI_PAGE_SIZE - EHCI_PAGE_OFFSET(dataphys); #ifdef DIAGNOSTIC if (curlen > len) { printf("ehci_alloc_sqtd_chain: curlen=0x%x " "len=0x%x offs=0x%x\n", curlen, len, EHCI_PAGE_OFFSET(dataphys)); printf("lastpage=0x%x page=0x%x phys=0x%x\n", dataphyslastpage, dataphyspage, dataphys); curlen = len; } #endif #elif defined(__FreeBSD__) /* See comment above (XXX) */ curlen = EHCI_PAGE_SIZE - EHCI_PAGE_MASK(dataphys); #endif /* the length must be a multiple of the max size */ curlen -= curlen % mps; DPRINTFN(1,("ehci_alloc_sqtd_chain: multiple QTDs, " "curlen=%d\n", curlen)); #ifdef DIAGNOSTIC if (curlen == 0) panic("ehci_alloc_std: curlen == 0"); #endif } DPRINTFN(4,("ehci_alloc_sqtd_chain: dataphys=0x%08x " "dataphyslastpage=0x%08x len=%d curlen=%d\n", dataphys, dataphyslastpage, len, curlen)); len -= curlen; if (len != 0) { next = ehci_alloc_sqtd(sc); if (next == NULL) goto nomem; nextphys = htole32(next->physaddr); } else { next = NULL; nextphys = EHCI_NULL; } for (i = 0; i * EHCI_PAGE_SIZE < curlen; i++) { ehci_physaddr_t a = dataphys + i * EHCI_PAGE_SIZE; if (i != 0) /* use offset only in first buffer */ a = EHCI_PAGE(a); cur->qtd.qtd_buffer[i] = htole32(a); cur->qtd.qtd_buffer_hi[i] = 0; #ifdef DIAGNOSTIC if (i >= EHCI_QTD_NBUFFERS) { printf("ehci_alloc_sqtd_chain: i=%d\n", i); goto nomem; } #endif } cur->nextqtd = next; cur->qtd.qtd_next = cur->qtd.qtd_altnext = nextphys; cur->qtd.qtd_status = htole32(qtdstatus | EHCI_QTD_SET_BYTES(curlen)); cur->xfer = xfer; cur->len = curlen; DPRINTFN(10,("ehci_alloc_sqtd_chain: cbp=0x%08x end=0x%08x\n", dataphys, dataphys + curlen)); /* adjust the toggle based on the number of packets in this qtd */ if (((curlen + mps - 1) / mps) & 1) { tog ^= 1; qtdstatus ^= EHCI_QTD_TOGGLE_MASK; } if (len == 0) break; DPRINTFN(10,("ehci_alloc_sqtd_chain: extend chain\n")); offset += curlen; dataphys = DMAADDR(dma, offset); cur = next; } cur->qtd.qtd_status |= htole32(EHCI_QTD_IOC); *ep = cur; epipe->nexttoggle = tog; DPRINTFN(10,("ehci_alloc_sqtd_chain: return sqtd=%p sqtdend=%p\n", *sp, *ep)); return (USBD_NORMAL_COMPLETION); nomem: /* XXX free chain */ DPRINTFN(-1,("ehci_alloc_sqtd_chain: no memory\n")); return (USBD_NOMEM); } Static void ehci_free_sqtd_chain(ehci_softc_t *sc, ehci_soft_qtd_t *sqtd, ehci_soft_qtd_t *sqtdend) { ehci_soft_qtd_t *p; int i; DPRINTFN(10,("ehci_free_sqtd_chain: sqtd=%p sqtdend=%p\n", sqtd, sqtdend)); for (i = 0; sqtd != sqtdend; sqtd = p, i++) { p = sqtd->nextqtd; ehci_free_sqtd(sc, sqtd); } } /****************/ /* * Close a reqular pipe. * Assumes that there are no pending transactions. */ void ehci_close_pipe(usbd_pipe_handle pipe, ehci_soft_qh_t *head) { struct ehci_pipe *epipe = (struct ehci_pipe *)pipe; ehci_softc_t *sc = (ehci_softc_t *)pipe->device->bus; ehci_soft_qh_t *sqh = epipe->sqh; int s; s = splusb(); ehci_rem_qh(sc, sqh, head); splx(s); ehci_free_sqh(sc, epipe->sqh); } /* * 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 ehci_abort_xfer(usbd_xfer_handle xfer, usbd_status status) { #define exfer EXFER(xfer) struct ehci_pipe *epipe = (struct ehci_pipe *)xfer->pipe; ehci_softc_t *sc = (ehci_softc_t *)epipe->pipe.device->bus; ehci_soft_qh_t *sqh = epipe->sqh; ehci_soft_qtd_t *sqtd, *snext, **psqtd; ehci_physaddr_t cur, us, next; int s; int hit; /* int count = 0; */ ehci_soft_qh_t *psqh; DPRINTF(("ehci_abort_xfer: xfer=%p pipe=%p\n", xfer, epipe)); if (sc->sc_dying) { /* If we're dying, just do the software part. */ s = splusb(); xfer->status = status; /* make software ignore it */ usb_uncallout(xfer->timeout_handle, ehci_timeout, xfer); usb_rem_task(epipe->pipe.device, &exfer->abort_task); usb_transfer_complete(xfer); splx(s); return; } if (xfer->device->bus->intr_context || !curproc) panic("ehci_abort_xfer: not in process context"); /* * If an abort is already in progress then just wait for it to * complete and return. */ if (exfer->ehci_xfer_flags & EHCI_XFER_ABORTING) { DPRINTFN(2, ("ehci_abort_xfer: already aborting\n")); /* No need to wait if we're aborting from a timeout. */ if (status == USBD_TIMEOUT) return; /* Override the status which might be USBD_TIMEOUT. */ xfer->status = status; DPRINTFN(2, ("ehci_abort_xfer: waiting for abort to finish\n")); exfer->ehci_xfer_flags |= EHCI_XFER_ABORTWAIT; while (exfer->ehci_xfer_flags & EHCI_XFER_ABORTING) tsleep(&exfer->ehci_xfer_flags, PZERO, "ehciaw", 0); return; } /* * Step 1: Make interrupt routine and timeouts ignore xfer. */ s = splusb(); exfer->ehci_xfer_flags |= EHCI_XFER_ABORTING; xfer->status = status; /* make software ignore it */ usb_uncallout(xfer->timeout_handle, ehci_timeout, xfer); usb_rem_task(epipe->pipe.device, &exfer->abort_task); splx(s); /* * Step 2: Wait until we know hardware has finished any possible * use of the xfer. We do this by removing the entire * queue from the async schedule and waiting for the doorbell. * Nothing else should be touching the queue now. */ psqh = sqh->prev; ehci_rem_qh(sc, sqh, psqh); /* * Step 3: make sure the soft interrupt routine * has run. This should remove any completed items off the queue. * The hardware has no reference to completed items (TDs). * It's safe to remove them at any time. */ s = splusb(); #ifdef USB_USE_SOFTINTR sc->sc_softwake = 1; #endif /* USB_USE_SOFTINTR */ usb_schedsoftintr(&sc->sc_bus); #ifdef USB_USE_SOFTINTR tsleep(&sc->sc_softwake, PZERO, "ehciab", 0); #endif /* USB_USE_SOFTINTR */ /* * Step 4: Remove any vestiges of the xfer from the hardware. * The complication here is that the hardware may have executed * into or even beyond the xfer we're trying to abort. * So as we're scanning the TDs of this xfer we check if * the hardware points to any of them. * * first we need to see if there are any transfers * on this queue before the xfer we are aborting.. we need * to update any pointers that point to us to point past * the aborting xfer. (If there is something past us). * Hardware and software. */ cur = EHCI_LINK_ADDR(le32toh(sqh->qh.qh_curqtd)); hit = 0; /* If they initially point here. */ us = exfer->sqtdstart->physaddr; /* We will change them to point here */ snext = exfer->sqtdend->nextqtd; next = snext ? htole32(snext->physaddr) : EHCI_NULL; /* * Now loop through any qTDs before us and keep track of the pointer * that points to us for the end. */ psqtd = &sqh->sqtd; sqtd = sqh->sqtd; while (sqtd && sqtd != exfer->sqtdstart) { hit |= (cur == sqtd->physaddr); if (EHCI_LINK_ADDR(le32toh(sqtd->qtd.qtd_next)) == us) sqtd->qtd.qtd_next = next; if (EHCI_LINK_ADDR(le32toh(sqtd->qtd.qtd_altnext)) == us) sqtd->qtd.qtd_altnext = next; psqtd = &sqtd->nextqtd; sqtd = sqtd->nextqtd; } /* make the software pointer bypass us too */ *psqtd = exfer->sqtdend->nextqtd; /* * If we already saw the active one then we are pretty much done. * We've done all the relinking we need to do. */ if (!hit) { /* * Now reinitialise the QH to point to the next qTD * (if there is one). We only need to do this if * it was previously pointing to us. * XXX Not quite sure what to do about the data toggle. */ sqtd = exfer->sqtdstart; for (sqtd = exfer->sqtdstart; ; sqtd = sqtd->nextqtd) { if (cur == sqtd->physaddr) { hit++; } /* count++; */ if (sqtd == exfer->sqtdend) break; } sqtd = sqtd->nextqtd; /* * Only need to alter the QH if it was pointing at a qTD * that we are removing. */ if (hit) { if (snext) { ehci_set_qh_qtd(sqh, snext); } else { sqh->qh.qh_curqtd = 0; /* unlink qTDs */ sqh->qh.qh_qtd.qtd_status = 0; sqh->qh.qh_qtd.qtd_next = sqh->qh.qh_qtd.qtd_altnext = EHCI_NULL; DPRINTFN(1,("ehci_abort_xfer: no hit\n")); } } } ehci_add_qh(sqh, psqh); /* * Step 5: Execute callback. */ #ifdef DIAGNOSTIC exfer->isdone = 1; #endif /* Do the wakeup first to avoid touching the xfer after the callback. */ exfer->ehci_xfer_flags &= ~EHCI_XFER_ABORTING; if (exfer->ehci_xfer_flags & EHCI_XFER_ABORTWAIT) { exfer->ehci_xfer_flags &= ~EHCI_XFER_ABORTWAIT; wakeup(&exfer->ehci_xfer_flags); } usb_transfer_complete(xfer); /* printf("%s: %d TDs aborted\n", __func__, count); */ splx(s); #undef exfer } void ehci_timeout(void *addr) { struct ehci_xfer *exfer = addr; struct ehci_pipe *epipe = (struct ehci_pipe *)exfer->xfer.pipe; ehci_softc_t *sc = (ehci_softc_t *)epipe->pipe.device->bus; DPRINTF(("ehci_timeout: exfer=%p\n", exfer)); #ifdef USB_DEBUG if (ehcidebug > 1) usbd_dump_pipe(exfer->xfer.pipe); #endif if (sc->sc_dying) { ehci_abort_xfer(&exfer->xfer, USBD_TIMEOUT); return; } /* Execute the abort in a process context. */ usb_add_task(exfer->xfer.pipe->device, &exfer->abort_task); } void ehci_timeout_task(void *addr) { usbd_xfer_handle xfer = addr; int s; DPRINTF(("ehci_timeout_task: xfer=%p\n", xfer)); s = splusb(); ehci_abort_xfer(xfer, USBD_TIMEOUT); splx(s); } /************************/ Static usbd_status ehci_device_ctrl_transfer(usbd_xfer_handle xfer) { usbd_status err; /* Insert last in queue. */ err = usb_insert_transfer(xfer); if (err) return (err); /* Pipe isn't running, start first */ return (ehci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); } Static usbd_status ehci_device_ctrl_start(usbd_xfer_handle xfer) { ehci_softc_t *sc = (ehci_softc_t *)xfer->pipe->device->bus; usbd_status err; if (sc->sc_dying) return (USBD_IOERROR); #ifdef DIAGNOSTIC if (!(xfer->rqflags & URQ_REQUEST)) { /* XXX panic */ printf("ehci_device_ctrl_transfer: not a request\n"); return (USBD_INVAL); } #endif err = ehci_device_request(xfer); if (err) return (err); if (sc->sc_bus.use_polling) ehci_waitintr(sc, xfer); return (USBD_IN_PROGRESS); } void ehci_device_ctrl_done(usbd_xfer_handle xfer) { struct ehci_xfer *ex = EXFER(xfer); ehci_softc_t *sc = (ehci_softc_t *)xfer->pipe->device->bus; /*struct ehci_pipe *epipe = (struct ehci_pipe *)xfer->pipe;*/ DPRINTFN(10,("ehci_ctrl_done: xfer=%p\n", xfer)); #ifdef DIAGNOSTIC if (!(xfer->rqflags & URQ_REQUEST)) { panic("ehci_ctrl_done: not a request"); } #endif if (xfer->status != USBD_NOMEM && ehci_active_intr_list(ex)) { ehci_del_intr_list(ex); /* remove from active list */ ehci_free_sqtd_chain(sc, ex->sqtdstart, NULL); } DPRINTFN(5, ("ehci_ctrl_done: length=%d\n", xfer->actlen)); } /* Abort a device control request. */ Static void ehci_device_ctrl_abort(usbd_xfer_handle xfer) { DPRINTF(("ehci_device_ctrl_abort: xfer=%p\n", xfer)); ehci_abort_xfer(xfer, USBD_CANCELLED); } /* Close a device control pipe. */ Static void ehci_device_ctrl_close(usbd_pipe_handle pipe) { ehci_softc_t *sc = (ehci_softc_t *)pipe->device->bus; /*struct ehci_pipe *epipe = (struct ehci_pipe *)pipe;*/ DPRINTF(("ehci_device_ctrl_close: pipe=%p\n", pipe)); ehci_close_pipe(pipe, sc->sc_async_head); } usbd_status ehci_device_request(usbd_xfer_handle xfer) { #define exfer EXFER(xfer) struct ehci_pipe *epipe = (struct ehci_pipe *)xfer->pipe; usb_device_request_t *req = &xfer->request; usbd_device_handle dev = epipe->pipe.device; ehci_softc_t *sc = (ehci_softc_t *)dev->bus; int addr = dev->address; ehci_soft_qtd_t *setup, *stat, *next; ehci_soft_qh_t *sqh; int isread; int len; usbd_status err; int s; isread = req->bmRequestType & UT_READ; len = UGETW(req->wLength); DPRINTFN(3,("ehci_device_request: type=0x%02x, request=0x%02x, " "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", req->bmRequestType, req->bRequest, UGETW(req->wValue), UGETW(req->wIndex), len, addr, epipe->pipe.endpoint->edesc->bEndpointAddress)); setup = ehci_alloc_sqtd(sc); if (setup == NULL) { err = USBD_NOMEM; goto bad1; } stat = ehci_alloc_sqtd(sc); if (stat == NULL) { err = USBD_NOMEM; goto bad2; } sqh = epipe->sqh; epipe->u.ctl.length = len; /* Update device address and length since they may have changed during the setup of the control pipe in usbd_new_device(). */ /* XXX This only needs to be done once, but it's too early in open. */ /* XXXX Should not touch ED here! */ sqh->qh.qh_endp = (sqh->qh.qh_endp & htole32(~(EHCI_QH_ADDRMASK | EHCI_QH_MPLMASK))) | htole32( EHCI_QH_SET_ADDR(addr) | EHCI_QH_SET_MPL(UGETW(epipe->pipe.endpoint->edesc->wMaxPacketSize)) ); /* Set up data transaction */ if (len != 0) { ehci_soft_qtd_t *end; /* Start toggle at 1. */ epipe->nexttoggle = 1; err = ehci_alloc_sqtd_chain(epipe, sc, len, isread, xfer, &next, &end); if (err) goto bad3; end->qtd.qtd_status &= htole32(~EHCI_QTD_IOC); end->nextqtd = stat; end->qtd.qtd_next = end->qtd.qtd_altnext = htole32(stat->physaddr); } else { next = stat; } memcpy(KERNADDR(&epipe->u.ctl.reqdma, 0), req, sizeof *req); /* Clear toggle */ setup->qtd.qtd_status = htole32( EHCI_QTD_ACTIVE | EHCI_QTD_SET_PID(EHCI_QTD_PID_SETUP) | EHCI_QTD_SET_CERR(3) | EHCI_QTD_SET_TOGGLE(0) | EHCI_QTD_SET_BYTES(sizeof *req) ); setup->qtd.qtd_buffer[0] = htole32(DMAADDR(&epipe->u.ctl.reqdma, 0)); setup->qtd.qtd_buffer_hi[0] = 0; setup->nextqtd = next; setup->qtd.qtd_next = setup->qtd.qtd_altnext = htole32(next->physaddr); setup->xfer = xfer; setup->len = sizeof *req; stat->qtd.qtd_status = htole32( EHCI_QTD_ACTIVE | EHCI_QTD_SET_PID(isread ? EHCI_QTD_PID_OUT : EHCI_QTD_PID_IN) | EHCI_QTD_SET_CERR(3) | EHCI_QTD_SET_TOGGLE(1) | EHCI_QTD_IOC ); stat->qtd.qtd_buffer[0] = 0; /* XXX not needed? */ stat->qtd.qtd_buffer_hi[0] = 0; /* XXX not needed? */ stat->nextqtd = NULL; stat->qtd.qtd_next = stat->qtd.qtd_altnext = EHCI_NULL; stat->xfer = xfer; stat->len = 0; #ifdef EHCI_DEBUG if (ehcidebug > 5) { DPRINTF(("ehci_device_request:\n")); ehci_dump_sqh(sqh); ehci_dump_sqtds(setup); } #endif exfer->sqtdstart = setup; exfer->sqtdend = stat; #ifdef DIAGNOSTIC if (!exfer->isdone) { printf("ehci_device_request: not done, exfer=%p\n", exfer); } exfer->isdone = 0; #endif /* Insert qTD in QH list. */ s = splusb(); ehci_set_qh_qtd(sqh, setup); if (xfer->timeout && !sc->sc_bus.use_polling) { usb_callout(xfer->timeout_handle, MS_TO_TICKS(xfer->timeout), ehci_timeout, xfer); } ehci_add_intr_list(sc, exfer); xfer->status = USBD_IN_PROGRESS; splx(s); #ifdef EHCI_DEBUG if (ehcidebug > 10) { DPRINTF(("ehci_device_request: status=%x\n", EOREAD4(sc, EHCI_USBSTS))); delay(10000); ehci_dump_regs(sc); ehci_dump_sqh(sc->sc_async_head); ehci_dump_sqh(sqh); ehci_dump_sqtds(setup); } #endif return (USBD_NORMAL_COMPLETION); bad3: ehci_free_sqtd(sc, stat); bad2: ehci_free_sqtd(sc, setup); bad1: DPRINTFN(-1,("ehci_device_request: no memory\n")); xfer->status = err; usb_transfer_complete(xfer); return (err); #undef exfer } /************************/ Static usbd_status ehci_device_bulk_transfer(usbd_xfer_handle xfer) { usbd_status err; /* Insert last in queue. */ err = usb_insert_transfer(xfer); if (err) return (err); /* Pipe isn't running, start first */ return (ehci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); } usbd_status ehci_device_bulk_start(usbd_xfer_handle xfer) { #define exfer EXFER(xfer) struct ehci_pipe *epipe = (struct ehci_pipe *)xfer->pipe; usbd_device_handle dev = epipe->pipe.device; ehci_softc_t *sc = (ehci_softc_t *)dev->bus; ehci_soft_qtd_t *data, *dataend; ehci_soft_qh_t *sqh; usbd_status err; int len, isread, endpt; int s; DPRINTFN(2, ("ehci_device_bulk_start: xfer=%p len=%d flags=%d\n", xfer, xfer->length, xfer->flags)); if (sc->sc_dying) return (USBD_IOERROR); #ifdef DIAGNOSTIC if (xfer->rqflags & URQ_REQUEST) panic("ehci_device_bulk_start: a request"); #endif len = xfer->length; endpt = epipe->pipe.endpoint->edesc->bEndpointAddress; isread = UE_GET_DIR(endpt) == UE_DIR_IN; sqh = epipe->sqh; epipe->u.bulk.length = len; err = ehci_alloc_sqtd_chain(epipe, sc, len, isread, xfer, &data, &dataend); if (err) { DPRINTFN(-1,("ehci_device_bulk_start: no memory\n")); xfer->status = err; usb_transfer_complete(xfer); return (err); } #ifdef EHCI_DEBUG if (ehcidebug > 5) { DPRINTF(("ehci_device_bulk_start: data(1)\n")); ehci_dump_sqh(sqh); ehci_dump_sqtds(data); } #endif /* Set up interrupt info. */ exfer->sqtdstart = data; exfer->sqtdend = dataend; #ifdef DIAGNOSTIC if (!exfer->isdone) { printf("ehci_device_bulk_start: not done, ex=%p\n", exfer); } exfer->isdone = 0; #endif s = splusb(); ehci_set_qh_qtd(sqh, data); if (xfer->timeout && !sc->sc_bus.use_polling) { usb_callout(xfer->timeout_handle, MS_TO_TICKS(xfer->timeout), ehci_timeout, xfer); } ehci_add_intr_list(sc, exfer); xfer->status = USBD_IN_PROGRESS; splx(s); #ifdef EHCI_DEBUG if (ehcidebug > 10) { DPRINTF(("ehci_device_bulk_start: data(2)\n")); delay(10000); DPRINTF(("ehci_device_bulk_start: data(3)\n")); ehci_dump_regs(sc); #if 0 printf("async_head:\n"); ehci_dump_sqh(sc->sc_async_head); #endif printf("sqh:\n"); ehci_dump_sqh(sqh); ehci_dump_sqtds(data); } #endif if (sc->sc_bus.use_polling) ehci_waitintr(sc, xfer); return (USBD_IN_PROGRESS); #undef exfer } Static void ehci_device_bulk_abort(usbd_xfer_handle xfer) { DPRINTF(("ehci_device_bulk_abort: xfer=%p\n", xfer)); ehci_abort_xfer(xfer, USBD_CANCELLED); } /* * Close a device bulk pipe. */ Static void ehci_device_bulk_close(usbd_pipe_handle pipe) { ehci_softc_t *sc = (ehci_softc_t *)pipe->device->bus; DPRINTF(("ehci_device_bulk_close: pipe=%p\n", pipe)); ehci_close_pipe(pipe, sc->sc_async_head); } void ehci_device_bulk_done(usbd_xfer_handle xfer) { struct ehci_xfer *ex = EXFER(xfer); ehci_softc_t *sc = (ehci_softc_t *)xfer->pipe->device->bus; /*struct ehci_pipe *epipe = (struct ehci_pipe *)xfer->pipe;*/ DPRINTFN(10,("ehci_bulk_done: xfer=%p, actlen=%d\n", xfer, xfer->actlen)); if (xfer->status != USBD_NOMEM && ehci_active_intr_list(ex)) { ehci_del_intr_list(ex); /* remove from active list */ ehci_free_sqtd_chain(sc, ex->sqtdstart, NULL); } DPRINTFN(5, ("ehci_bulk_done: length=%d\n", xfer->actlen)); } /************************/ Static usbd_status ehci_device_setintr(ehci_softc_t *sc, ehci_soft_qh_t *sqh, int ival) { struct ehci_soft_islot *isp; int islot, lev; /* Find a poll rate that is large enough. */ for (lev = EHCI_IPOLLRATES - 1; lev > 0; lev--) if (EHCI_ILEV_IVAL(lev) <= ival) break; /* Pick an interrupt slot at the right level. */ /* XXX could do better than picking at random. */ islot = EHCI_IQHIDX(lev, arc4random()); sqh->islot = islot; isp = &sc->sc_islots[islot]; ehci_add_qh(sqh, isp->sqh); return (USBD_NORMAL_COMPLETION); } Static usbd_status ehci_device_intr_transfer(usbd_xfer_handle 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 (ehci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); } Static usbd_status ehci_device_intr_start(usbd_xfer_handle xfer) { #define exfer EXFER(xfer) struct ehci_pipe *epipe = (struct ehci_pipe *)xfer->pipe; usbd_device_handle dev = xfer->pipe->device; ehci_softc_t *sc = (ehci_softc_t *)dev->bus; ehci_soft_qtd_t *data, *dataend; ehci_soft_qh_t *sqh; usbd_status err; int len, isread, endpt; int s; DPRINTFN(2, ("ehci_device_intr_start: xfer=%p len=%d flags=%d\n", xfer, xfer->length, xfer->flags)); if (sc->sc_dying) return (USBD_IOERROR); #ifdef DIAGNOSTIC if (xfer->rqflags & URQ_REQUEST) panic("ehci_device_intr_start: a request"); #endif len = xfer->length; endpt = epipe->pipe.endpoint->edesc->bEndpointAddress; isread = UE_GET_DIR(endpt) == UE_DIR_IN; sqh = epipe->sqh; epipe->u.intr.length = len; err = ehci_alloc_sqtd_chain(epipe, sc, len, isread, xfer, &data, &dataend); if (err) { DPRINTFN(-1, ("ehci_device_intr_start: no memory\n")); xfer->status = err; usb_transfer_complete(xfer); return (err); } #ifdef EHCI_DEBUG if (ehcidebug > 5) { DPRINTF(("ehci_device_intr_start: data(1)\n")); ehci_dump_sqh(sqh); ehci_dump_sqtds(data); } #endif /* Set up interrupt info. */ exfer->sqtdstart = data; exfer->sqtdend = dataend; #ifdef DIAGNOSTIC if (!exfer->isdone) { printf("ehci_device_intr_start: not done, ex=%p\n", exfer); } exfer->isdone = 0; #endif s = splusb(); ehci_set_qh_qtd(sqh, data); if (xfer->timeout && !sc->sc_bus.use_polling) { usb_callout(xfer->timeout_handle, MS_TO_TICKS(xfer->timeout), ehci_timeout, xfer); } ehci_add_intr_list(sc, exfer); xfer->status = USBD_IN_PROGRESS; splx(s); #ifdef EHCI_DEBUG if (ehcidebug > 10) { DPRINTF(("ehci_device_intr_start: data(2)\n")); delay(10000); DPRINTF(("ehci_device_intr_start: data(3)\n")); ehci_dump_regs(sc); printf("sqh:\n"); ehci_dump_sqh(sqh); ehci_dump_sqtds(data); } #endif if (sc->sc_bus.use_polling) ehci_waitintr(sc, xfer); return (USBD_IN_PROGRESS); #undef exfer } Static void ehci_device_intr_abort(usbd_xfer_handle xfer) { DPRINTFN(1, ("ehci_device_intr_abort: xfer=%p\n", xfer)); if (xfer->pipe->intrxfer == xfer) { DPRINTFN(1, ("ehci_device_intr_abort: remove\n")); xfer->pipe->intrxfer = NULL; } ehci_abort_xfer(xfer, USBD_CANCELLED); } Static void ehci_device_intr_close(usbd_pipe_handle pipe) { ehci_softc_t *sc = (ehci_softc_t *)pipe->device->bus; struct ehci_pipe *epipe = (struct ehci_pipe *)pipe; struct ehci_soft_islot *isp; isp = &sc->sc_islots[epipe->sqh->islot]; ehci_close_pipe(pipe, isp->sqh); } Static void ehci_device_intr_done(usbd_xfer_handle xfer) { #define exfer EXFER(xfer) struct ehci_xfer *ex = EXFER(xfer); ehci_softc_t *sc = (ehci_softc_t *)xfer->pipe->device->bus; struct ehci_pipe *epipe = (struct ehci_pipe *)xfer->pipe; ehci_soft_qtd_t *data, *dataend; ehci_soft_qh_t *sqh; usbd_status err; int len, isread, endpt, s; DPRINTFN(10, ("ehci_device_intr_done: xfer=%p, actlen=%d\n", xfer, xfer->actlen)); if (xfer->pipe->repeat) { ehci_free_sqtd_chain(sc, ex->sqtdstart, NULL); len = epipe->u.intr.length; xfer->length = len; endpt = epipe->pipe.endpoint->edesc->bEndpointAddress; isread = UE_GET_DIR(endpt) == UE_DIR_IN; sqh = epipe->sqh; err = ehci_alloc_sqtd_chain(epipe, sc, len, isread, xfer, &data, &dataend); if (err) { DPRINTFN(-1, ("ehci_device_intr_done: no memory\n")); xfer->status = err; return; } /* Set up interrupt info. */ exfer->sqtdstart = data; exfer->sqtdend = dataend; #ifdef DIAGNOSTIC if (!exfer->isdone) { printf("ehci_device_intr_done: not done, ex=%p\n", exfer); } exfer->isdone = 0; #endif s = splusb(); ehci_set_qh_qtd(sqh, data); if (xfer->timeout && !sc->sc_bus.use_polling) { usb_callout(xfer->timeout_handle, MS_TO_TICKS(xfer->timeout), ehci_timeout, xfer); } splx(s); xfer->status = USBD_IN_PROGRESS; } else if (xfer->status != USBD_NOMEM && ehci_active_intr_list(ex)) { ehci_del_intr_list(ex); /* remove from active list */ ehci_free_sqtd_chain(sc, ex->sqtdstart, NULL); } #undef exfer } /************************/ Static usbd_status ehci_device_isoc_transfer(usbd_xfer_handle xfer) { return USBD_IOERROR; } Static usbd_status ehci_device_isoc_start(usbd_xfer_handle xfer) { return USBD_IOERROR; } Static void ehci_device_isoc_abort(usbd_xfer_handle xfer) { } Static void ehci_device_isoc_close(usbd_pipe_handle pipe) { } Static void ehci_device_isoc_done(usbd_xfer_handle xfer) { }