diff options
Diffstat (limited to 'sys/legacy/dev/usb/uhci.c')
| -rw-r--r-- | sys/legacy/dev/usb/uhci.c | 3704 |
1 files changed, 3704 insertions, 0 deletions
diff --git a/sys/legacy/dev/usb/uhci.c b/sys/legacy/dev/usb/uhci.c new file mode 100644 index 0000000..4d4c61b --- /dev/null +++ b/sys/legacy/dev/usb/uhci.c @@ -0,0 +1,3704 @@ +/* $NetBSD: uhci.c,v 1.170 2003/02/19 01:35:04 augustss Exp $ */ + +/* Also already incorporated from NetBSD: + * $NetBSD: uhci.c,v 1.172 2003/02/23 04:19:26 simonb Exp $ + * $NetBSD: uhci.c,v 1.173 2003/05/13 04:41:59 gson Exp $ + * $NetBSD: uhci.c,v 1.175 2003/09/12 16:18:08 mycroft Exp $ + * $NetBSD: uhci.c,v 1.176 2003/11/04 19:11:21 mycroft Exp $ + * $NetBSD: uhci.c,v 1.177 2003/12/29 08:17:10 toshii Exp $ + * $NetBSD: uhci.c,v 1.178 2004/03/02 16:32:05 martin Exp $ + * $NetBSD: uhci.c,v 1.180 2004/07/17 20:12:03 mycroft Exp $ + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + + +/*- + * 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. + * 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 Universal Host Controller driver. + * Handles e.g. PIIX3 and PIIX4. + * + * UHCI spec: http://developer.intel.com/design/USB/UHCI11D.htm + * USB spec: http://www.usb.org/developers/docs/usbspec.zip + * PIIXn spec: ftp://download.intel.com/design/intarch/datashts/29055002.pdf + * ftp://download.intel.com/design/intarch/datashts/29056201.pdf + */ + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/kernel.h> +#include <sys/malloc.h> +#include <sys/endian.h> +#include <sys/module.h> +#include <sys/bus.h> +#if defined(DIAGNOSTIC) && defined(__i386__) +#include <machine/cpu.h> +#endif +#include <sys/proc.h> +#include <sys/queue.h> +#include <sys/sysctl.h> + +#include <machine/bus.h> +#include <machine/endian.h> + +#include <dev/usb/usb.h> +#include <dev/usb/usbdi.h> +#include <dev/usb/usbdivar.h> +#include <dev/usb/usb_mem.h> +#include <dev/usb/usb_quirks.h> + +#include <dev/usb/uhcireg.h> +#include <dev/usb/uhcivar.h> + +/* Use bandwidth reclamation for control transfers. Some devices choke on it. */ +/*#define UHCI_CTL_LOOP */ + +#define delay(d) DELAY(d) + +#define MS_TO_TICKS(ms) ((ms) * hz / 1000) + +#ifdef USB_DEBUG +uhci_softc_t *thesc; +#define DPRINTF(x) if (uhcidebug) printf x +#define DPRINTFN(n,x) if (uhcidebug>(n)) printf x +int uhcidebug = 0; +int uhcinoloop = 0; +SYSCTL_NODE(_hw_usb, OID_AUTO, uhci, CTLFLAG_RW, 0, "USB uhci"); +SYSCTL_INT(_hw_usb_uhci, OID_AUTO, debug, CTLFLAG_RW, + &uhcidebug, 0, "uhci debug level"); +SYSCTL_INT(_hw_usb_uhci, OID_AUTO, loop, CTLFLAG_RW, + &uhcinoloop, 0, "uhci noloop"); +#define bitmask_snprintf(q,f,b,l) snprintf((b), (l), "%b", (q), (f)) +#else +#define DPRINTF(x) +#define DPRINTFN(n,x) +#endif + +struct uhci_pipe { + struct usbd_pipe pipe; + int nexttoggle; + + u_char aborting; + usbd_xfer_handle abortstart, abortend; + + /* Info needed for different pipe kinds. */ + union { + /* Control pipe */ + struct { + uhci_soft_qh_t *sqh; + usb_dma_t reqdma; + uhci_soft_td_t *setup, *stat; + u_int length; + } ctl; + /* Interrupt pipe */ + struct { + int npoll; + int isread; + uhci_soft_qh_t **qhs; + } intr; + /* Bulk pipe */ + struct { + uhci_soft_qh_t *sqh; + u_int length; + int isread; + } bulk; + /* Iso pipe */ + struct iso { + uhci_soft_td_t **stds; + int next, inuse; + } iso; + } u; +}; + +static void uhci_globalreset(uhci_softc_t *); +static usbd_status uhci_portreset(uhci_softc_t*, int); +static void uhci_reset(uhci_softc_t *); +#if defined(__NetBSD__) || defined(__OpenBSD__) +static void uhci_shutdown(void *v); +static void uhci_power(int, void *); +#endif +static usbd_status uhci_run(uhci_softc_t *, int run); +static uhci_soft_td_t *uhci_alloc_std(uhci_softc_t *); +static void uhci_free_std(uhci_softc_t *, uhci_soft_td_t *); +static uhci_soft_qh_t *uhci_alloc_sqh(uhci_softc_t *); +static void uhci_free_sqh(uhci_softc_t *, uhci_soft_qh_t *); +static usbd_status uhci_aux_dma_alloc(uhci_softc_t *, uhci_soft_td_t *, + void *data, int len); +static uhci_physaddr_t uhci_aux_dma_prepare(uhci_soft_td_t *, int); +static void uhci_aux_dma_complete(uhci_soft_td_t *, int); +#if 0 +static void uhci_enter_ctl_q(uhci_softc_t *, uhci_soft_qh_t *, + uhci_intr_info_t *); +static void uhci_exit_ctl_q(uhci_softc_t *, uhci_soft_qh_t *); +#endif + +static void uhci_free_std_chain(uhci_softc_t *, + uhci_soft_td_t *, uhci_soft_td_t *); +static usbd_status uhci_alloc_std_chain(struct uhci_pipe *, + uhci_softc_t *, int, int, u_int16_t, + usbd_xfer_handle xfer, + uhci_soft_td_t **, uhci_soft_td_t **); +static void uhci_poll_hub(void *); +static void uhci_waitintr(uhci_softc_t *, usbd_xfer_handle); +static void uhci_check_intr(uhci_softc_t *, uhci_intr_info_t *); +static void uhci_idone(uhci_intr_info_t *); + +static void uhci_abort_xfer(usbd_xfer_handle, usbd_status status); +static void uhci_transfer_complete(usbd_xfer_handle xfer); + +static void uhci_timeout(void *); +static void uhci_timeout_task(void *); +static void uhci_add_ls_ctrl(uhci_softc_t *, uhci_soft_qh_t *); +static void uhci_add_hs_ctrl(uhci_softc_t *, uhci_soft_qh_t *); +static void uhci_add_bulk(uhci_softc_t *, uhci_soft_qh_t *); +static void uhci_remove_ls_ctrl(uhci_softc_t *,uhci_soft_qh_t *); +static void uhci_remove_hs_ctrl(uhci_softc_t *,uhci_soft_qh_t *); +static void uhci_remove_bulk(uhci_softc_t *,uhci_soft_qh_t *); +static int uhci_str(usb_string_descriptor_t *, int, char *); +static void uhci_add_loop(uhci_softc_t *sc); +static void uhci_rem_loop(uhci_softc_t *sc); + +static usbd_status uhci_setup_isoc(usbd_pipe_handle pipe); +static void uhci_device_isoc_enter(usbd_xfer_handle); + +static usbd_status uhci_allocm(struct usbd_bus *, usb_dma_t *, u_int32_t); +static void uhci_freem(struct usbd_bus *, usb_dma_t *); + +static usbd_xfer_handle uhci_allocx(struct usbd_bus *); +static void uhci_freex(struct usbd_bus *, usbd_xfer_handle); + +static usbd_status uhci_device_ctrl_transfer(usbd_xfer_handle); +static usbd_status uhci_device_ctrl_start(usbd_xfer_handle); +static void uhci_device_ctrl_abort(usbd_xfer_handle); +static void uhci_device_ctrl_close(usbd_pipe_handle); +static void uhci_device_ctrl_done(usbd_xfer_handle); + +static usbd_status uhci_device_intr_transfer(usbd_xfer_handle); +static usbd_status uhci_device_intr_start(usbd_xfer_handle); +static void uhci_device_intr_abort(usbd_xfer_handle); +static void uhci_device_intr_close(usbd_pipe_handle); +static void uhci_device_intr_done(usbd_xfer_handle); + +static usbd_status uhci_device_bulk_transfer(usbd_xfer_handle); +static usbd_status uhci_device_bulk_start(usbd_xfer_handle); +static void uhci_device_bulk_abort(usbd_xfer_handle); +static void uhci_device_bulk_close(usbd_pipe_handle); +static void uhci_device_bulk_done(usbd_xfer_handle); + +static usbd_status uhci_device_isoc_transfer(usbd_xfer_handle); +static usbd_status uhci_device_isoc_start(usbd_xfer_handle); +static void uhci_device_isoc_abort(usbd_xfer_handle); +static void uhci_device_isoc_close(usbd_pipe_handle); +static void uhci_device_isoc_done(usbd_xfer_handle); + +static usbd_status uhci_root_ctrl_transfer(usbd_xfer_handle); +static usbd_status uhci_root_ctrl_start(usbd_xfer_handle); +static void uhci_root_ctrl_abort(usbd_xfer_handle); +static void uhci_root_ctrl_close(usbd_pipe_handle); +static void uhci_root_ctrl_done(usbd_xfer_handle); + +static usbd_status uhci_root_intr_transfer(usbd_xfer_handle); +static usbd_status uhci_root_intr_start(usbd_xfer_handle); +static void uhci_root_intr_abort(usbd_xfer_handle); +static void uhci_root_intr_close(usbd_pipe_handle); +static void uhci_root_intr_done(usbd_xfer_handle); + +static usbd_status uhci_open(usbd_pipe_handle); +static void uhci_poll(struct usbd_bus *); +static void uhci_softintr(void *); + +static usbd_status uhci_device_request(usbd_xfer_handle xfer); + +static void uhci_add_intr(uhci_softc_t *, uhci_soft_qh_t *); +static void uhci_remove_intr(uhci_softc_t *, uhci_soft_qh_t *); +static usbd_status uhci_device_setintr(uhci_softc_t *sc, + struct uhci_pipe *pipe, int ival); + +static void uhci_device_clear_toggle(usbd_pipe_handle pipe); +static void uhci_noop(usbd_pipe_handle pipe); + +static __inline uhci_soft_qh_t *uhci_find_prev_qh(uhci_soft_qh_t *, + uhci_soft_qh_t *); + +#ifdef USB_DEBUG +static void uhci_dump_all(uhci_softc_t *); +static void uhci_dumpregs(uhci_softc_t *); +static void uhci_dump_qhs(uhci_soft_qh_t *); +static void uhci_dump_qh(uhci_soft_qh_t *); +static void uhci_dump_tds(uhci_soft_td_t *); +static void uhci_dump_td(uhci_soft_td_t *); +static void uhci_dump_ii(uhci_intr_info_t *ii); +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) +#define UREAD1(sc, r) (UBARR(sc), bus_space_read_1((sc)->iot, (sc)->ioh, (r))) +#define UREAD2(sc, r) (UBARR(sc), bus_space_read_2((sc)->iot, (sc)->ioh, (r))) +#define UREAD4(sc, r) (UBARR(sc), 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 = { + uhci_open, + uhci_softintr, + uhci_poll, + uhci_allocm, + uhci_freem, + uhci_allocx, + uhci_freex, +}; + +struct usbd_pipe_methods uhci_root_ctrl_methods = { + uhci_root_ctrl_transfer, + uhci_root_ctrl_start, + uhci_root_ctrl_abort, + uhci_root_ctrl_close, + uhci_noop, + uhci_root_ctrl_done, +}; + +struct usbd_pipe_methods uhci_root_intr_methods = { + uhci_root_intr_transfer, + uhci_root_intr_start, + uhci_root_intr_abort, + uhci_root_intr_close, + uhci_noop, + uhci_root_intr_done, +}; + +struct usbd_pipe_methods uhci_device_ctrl_methods = { + uhci_device_ctrl_transfer, + uhci_device_ctrl_start, + uhci_device_ctrl_abort, + uhci_device_ctrl_close, + uhci_noop, + uhci_device_ctrl_done, +}; + +struct usbd_pipe_methods uhci_device_intr_methods = { + uhci_device_intr_transfer, + uhci_device_intr_start, + uhci_device_intr_abort, + uhci_device_intr_close, + uhci_device_clear_toggle, + uhci_device_intr_done, +}; + +struct usbd_pipe_methods uhci_device_bulk_methods = { + uhci_device_bulk_transfer, + uhci_device_bulk_start, + uhci_device_bulk_abort, + uhci_device_bulk_close, + uhci_device_clear_toggle, + uhci_device_bulk_done, +}; + +struct usbd_pipe_methods uhci_device_isoc_methods = { + uhci_device_isoc_transfer, + uhci_device_isoc_start, + uhci_device_isoc_abort, + uhci_device_isoc_close, + uhci_noop, + uhci_device_isoc_done, +}; + +#define uhci_add_intr_info(sc, ii) \ + LIST_INSERT_HEAD(&(sc)->sc_intrhead, (ii), list) +#define uhci_del_intr_info(ii) \ + do { \ + LIST_REMOVE((ii), list); \ + (ii)->list.le_prev = NULL; \ + } while (0) +#define uhci_active_intr_info(ii) ((ii)->list.le_prev != NULL) + +static __inline uhci_soft_qh_t * +uhci_find_prev_qh(uhci_soft_qh_t *pqh, uhci_soft_qh_t *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(USB_DEBUG) + if (le32toh(pqh->qh.qh_hlink) & UHCI_PTR_T) { + printf("uhci_find_prev_qh: QH not found\n"); + return (NULL); + } +#endif + } + return (pqh); +} + +void +uhci_globalreset(uhci_softc_t *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(uhci_softc_t *sc) +{ + usbd_status err; + int i, j; + uhci_soft_qh_t *clsqh, *chsqh, *bsqh, *sqh, *lsqh; + uhci_soft_td_t *std; + + DPRINTFN(1,("uhci_init: start\n")); + +#ifdef USB_DEBUG + thesc = sc; + + if (uhcidebug > 2) + uhci_dumpregs(sc); +#endif + + UWRITE2(sc, UHCI_INTR, 0); /* disable interrupts */ + uhci_globalreset(sc); /* reset the controller */ + uhci_reset(sc); + + /* Allocate and initialize real frame array. */ + 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); + + STAILQ_INIT(&sc->sc_free_xfers); + + callout_init(&sc->sc_poll_handle, 0); + + /* Set up the bus struct. */ + sc->sc_bus.methods = &uhci_bus_methods; + sc->sc_bus.pipe_size = sizeof(struct uhci_pipe); + +#if defined(__NetBSD__) || defined(__OpenBSD__) + sc->sc_suspend = PWR_RESUME; + sc->sc_powerhook = powerhook_establish(uhci_power, sc); + sc->sc_shutdownhook = shutdownhook_establish(uhci_shutdown, sc); +#endif + + DPRINTFN(1,("uhci_init: enabling\n")); + UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | + UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* enable interrupts */ + + UHCICMD(sc, UHCI_CMD_MAXP); /* Assume 64 byte packets at frame end */ + + return (uhci_run(sc, 1)); /* and here we go... */ +} + +int +uhci_detach(struct uhci_softc *sc, int flags) +{ + usbd_xfer_handle xfer; + int rv = 0; + + sc->sc_dying = 1; + + UWRITE2(sc, UHCI_INTR, 0); /* disable interrupts */ + uhci_run(sc, 0); + +#if defined(__NetBSD__) || defined(__OpenBSD__) + powerhook_disestablish(sc->sc_powerhook); + shutdownhook_disestablish(sc->sc_shutdownhook); +#endif + + /* Free all xfers associated with this HC. */ + for (;;) { + xfer = STAILQ_FIRST(&sc->sc_free_xfers); + if (xfer == NULL) + break; + STAILQ_REMOVE_HEAD(&sc->sc_free_xfers, next); + free(xfer, M_USB); + } + + /* XXX free other data structures XXX */ + usb_freemem(&sc->sc_bus, &sc->sc_dma); + + return (rv); +} + +usbd_status +uhci_allocm(struct usbd_bus *bus, usb_dma_t *dma, u_int32_t size) +{ + return (usb_allocmem(bus, size, 0, dma)); +} + +void +uhci_freem(struct usbd_bus *bus, usb_dma_t *dma) +{ + usb_freemem(bus, dma); +} + +usbd_xfer_handle +uhci_allocx(struct usbd_bus *bus) +{ + struct uhci_softc *sc = (struct uhci_softc *)bus; + usbd_xfer_handle xfer; + + xfer = STAILQ_FIRST(&sc->sc_free_xfers); + if (xfer != NULL) { + STAILQ_REMOVE_HEAD(&sc->sc_free_xfers, next); +#ifdef DIAGNOSTIC + if (xfer->busy_free != XFER_FREE) { + printf("uhci_allocx: xfer=%p not free, 0x%08x\n", xfer, + xfer->busy_free); + } +#endif + } else { + xfer = malloc(sizeof(struct uhci_xfer), M_USB, M_NOWAIT); + } + if (xfer != NULL) { + memset(xfer, 0, sizeof (struct uhci_xfer)); + UXFER(xfer)->iinfo.sc = sc; + usb_init_task(&UXFER(xfer)->abort_task, uhci_timeout_task, + xfer); + UXFER(xfer)->uhci_xfer_flags = 0; +#ifdef DIAGNOSTIC + UXFER(xfer)->iinfo.isdone = 1; + xfer->busy_free = XFER_BUSY; +#endif + } + return (xfer); +} + +void +uhci_freex(struct usbd_bus *bus, usbd_xfer_handle xfer) +{ + struct uhci_softc *sc = (struct uhci_softc *)bus; + +#ifdef DIAGNOSTIC + if (xfer->busy_free != XFER_BUSY) { + printf("uhci_freex: xfer=%p not busy, 0x%08x\n", xfer, + xfer->busy_free); + return; + } + xfer->busy_free = XFER_FREE; + if (!UXFER(xfer)->iinfo.isdone) { + printf("uhci_freex: !isdone\n"); + return; + } +#endif + STAILQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next); +} + +/* + * Shut down the controller when the system is going down. + */ +void +uhci_shutdown(void *v) +{ + uhci_softc_t *sc = v; + + DPRINTF(("uhci_shutdown: stopping the HC\n")); + uhci_run(sc, 0); /* stop the controller */ +} + +/* + * 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 +uhci_power(int why, void *v) +{ + uhci_softc_t *sc = v; + int cmd; + int s; + + s = splhardusb(); + cmd = UREAD2(sc, UHCI_CMD); + + DPRINTF(("uhci_power: sc=%p, why=%d (was %d), cmd=0x%x\n", + sc, why, sc->sc_suspend, cmd)); + + if (why != PWR_RESUME) { +#ifdef USB_DEBUG + if (uhcidebug > 2) + uhci_dumpregs(sc); +#endif + if (sc->sc_intr_xfer != NULL) + callout_stop(&sc->sc_poll_handle); + sc->sc_bus.use_polling++; + uhci_run(sc, 0); /* stop the controller */ + cmd &= ~UHCI_CMD_RS; + + /* save some state if BIOS doesn't */ + sc->sc_saved_frnum = UREAD2(sc, UHCI_FRNUM); + sc->sc_saved_sof = UREAD1(sc, UHCI_SOF); + + UWRITE2(sc, UHCI_INTR, 0); /* disable intrs */ + + UHCICMD(sc, cmd | UHCI_CMD_EGSM); /* enter global suspend */ + usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); + sc->sc_suspend = why; + sc->sc_bus.use_polling--; + DPRINTF(("uhci_power: cmd=0x%x\n", UREAD2(sc, UHCI_CMD))); + } else { +#ifdef DIAGNOSTIC + if (sc->sc_suspend == PWR_RESUME) + printf("uhci_power: weird, resume without suspend.\n"); +#endif + sc->sc_bus.use_polling++; + sc->sc_suspend = why; + UWRITE2(sc, UHCI_INTR, 0); /* disable interrupts */ + uhci_globalreset(sc); /* reset the controller */ + uhci_reset(sc); + if (cmd & UHCI_CMD_RS) + uhci_run(sc, 0); /* in case BIOS has started it */ + + uhci_globalreset(sc); + uhci_reset(sc); + + /* 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 */ + UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | + UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* re-enable intrs */ + UHCICMD(sc, UHCI_CMD_MAXP); + uhci_run(sc, 1); /* and start traffic again */ + usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); + sc->sc_bus.use_polling--; + if (sc->sc_intr_xfer != NULL) + callout_reset(&sc->sc_poll_handle, sc->sc_ival, + uhci_poll_hub, sc->sc_intr_xfer); +#ifdef USB_DEBUG + if (uhcidebug > 2) + uhci_dumpregs(sc); +#endif + } + splx(s); +} + +#ifdef USB_DEBUG +static void +uhci_dumpregs(uhci_softc_t *sc) +{ + DPRINTFN(-1,("%s regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, " + "flbase=%08x, sof=%04x, portsc1=%04x, portsc2=%04x\n", + device_get_nameunit(sc->sc_bus.bdev), + 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(uhci_soft_td_t *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)le32toh(p->td.td_link), + (long)le32toh(p->td.td_status), + (long)le32toh(p->td.td_token), + (long)le32toh(p->td.td_buffer))); + + bitmask_snprintf((u_int32_t)le32toh(p->td.td_link), "\20\1T\2Q\3VF", + sbuf, sizeof(sbuf)); + bitmask_snprintf((u_int32_t)le32toh(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(le32toh(p->td.td_status)), + UHCI_TD_GET_ACTLEN(le32toh(p->td.td_status)), + UHCI_TD_GET_PID(le32toh(p->td.td_token)), + UHCI_TD_GET_DEVADDR(le32toh(p->td.td_token)), + UHCI_TD_GET_ENDPT(le32toh(p->td.td_token)), + UHCI_TD_GET_DT(le32toh(p->td.td_token)), + UHCI_TD_GET_MAXLEN(le32toh(p->td.td_token)))); +} + +void +uhci_dump_qh(uhci_soft_qh_t *sqh) +{ + DPRINTFN(-1,("QH(%p) at %08x: hlink=%08x elink=%08x\n", sqh, + (int)sqh->physaddr, le32toh(sqh->qh.qh_hlink), + le32toh(sqh->qh.qh_elink))); +} + + +#if 1 +void +uhci_dump(void) +{ + uhci_dump_all(thesc); +} +#endif + +void +uhci_dump_all(uhci_softc_t *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(uhci_soft_qh_t *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 && !(le32toh(sqh->qh.qh_hlink) & UHCI_PTR_T)) + uhci_dump_qhs(sqh->hlink); + else + DPRINTF(("No QH\n")); + + if (sqh->elink != NULL && !(le32toh(sqh->qh.qh_elink) & UHCI_PTR_T)) + uhci_dump_tds(sqh->elink); + else + DPRINTF(("No TD\n")); +} + +void +uhci_dump_tds(uhci_soft_td_t *std) +{ + uhci_soft_td_t *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 (le32toh(td->td.td_link) & UHCI_PTR_T || + le32toh(td->td.td_link) == 0) + break; + } +} + +static void +uhci_dump_ii(uhci_intr_info_t *ii) +{ + usbd_pipe_handle pipe; + usb_endpoint_descriptor_t *ed; + usbd_device_handle dev; + +#ifdef DIAGNOSTIC +#define DONE ii->isdone +#else +#define DONE 0 +#endif + if (ii == NULL) { + printf("ii NULL\n"); + return; + } + if (ii->xfer == NULL) { + printf("ii %p: done=%d xfer=NULL\n", + ii, DONE); + return; + } + pipe = ii->xfer->pipe; + if (pipe == NULL) { + printf("ii %p: done=%d xfer=%p pipe=NULL\n", + ii, DONE, ii->xfer); + return; + } + if (pipe->endpoint == NULL) { + printf("ii %p: done=%d xfer=%p pipe=%p pipe->endpoint=NULL\n", + ii, DONE, ii->xfer, pipe); + return; + } + if (pipe->device == NULL) { + printf("ii %p: done=%d xfer=%p pipe=%p pipe->device=NULL\n", + ii, DONE, ii->xfer, pipe); + return; + } + ed = pipe->endpoint->edesc; + dev = pipe->device; + printf("ii %p: done=%d xfer=%p dev=%p vid=0x%04x pid=0x%04x addr=%d pipe=%p ep=0x%02x attr=0x%02x\n", + ii, DONE, ii->xfer, dev, + UGETW(dev->ddesc.idVendor), + UGETW(dev->ddesc.idProduct), + dev->address, pipe, + ed->bEndpointAddress, ed->bmAttributes); +#undef DONE +} + +void uhci_dump_iis(struct uhci_softc *sc); +void +uhci_dump_iis(struct uhci_softc *sc) +{ + uhci_intr_info_t *ii; + + printf("intr_info list:\n"); + for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) + uhci_dump_ii(ii); +} + +void iidump(void); +void iidump(void) { uhci_dump_iis(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) +{ + usbd_xfer_handle xfer = addr; + usbd_pipe_handle pipe = xfer->pipe; + usbd_device_handle dev = pipe->device; + uhci_softc_t *sc = (uhci_softc_t *)dev->bus; + int s; + u_char *p; + + DPRINTFN(20, ("uhci_poll_hub\n")); + + callout_reset(&sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); + + p = xfer->buffer; + 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 */ + return; + + xfer->actlen = 1; + xfer->status = USBD_NORMAL_COMPLETION; + s = splusb(); + dev->bus->intr_context++; + uhci_transfer_complete(xfer); + dev->bus->intr_context--; + splx(s); +} + +void +uhci_root_intr_done(usbd_xfer_handle xfer) +{ +} + +void +uhci_root_ctrl_done(usbd_xfer_handle 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(uhci_softc_t *sc) { +#ifdef USB_DEBUG + if (uhcinoloop) + return; +#endif + if (++sc->sc_loops == 1) { + DPRINTFN(5,("uhci_start_loop: add\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(uhci_softc_t *sc) { +#ifdef USB_DEBUG + if (uhcinoloop) + return; +#endif + if (--sc->sc_loops == 0) { + DPRINTFN(5,("uhci_end_loop: remove\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(uhci_softc_t *sc, uhci_soft_qh_t *sqh) +{ + uhci_soft_qh_t *eqh; + + SPLUSBCHECK; + + DPRINTFN(10, ("uhci_add_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(uhci_softc_t *sc, uhci_soft_qh_t *sqh) +{ + uhci_soft_qh_t *pqh; + + SPLUSBCHECK; + + 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(uhci_softc_t *sc, uhci_soft_qh_t *sqh) +{ + uhci_soft_qh_t *eqh; + + SPLUSBCHECK; + + 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(uhci_softc_t *sc, uhci_soft_qh_t *sqh) +{ + uhci_soft_qh_t *pqh; + + SPLUSBCHECK; + + 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(uhci_softc_t *sc, uhci_soft_qh_t *sqh) +{ + uhci_soft_qh_t *eqh; + + SPLUSBCHECK; + + 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(uhci_softc_t *sc, uhci_soft_qh_t *sqh) +{ + uhci_soft_qh_t *pqh; + + SPLUSBCHECK; + + 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; +} + +static int uhci_intr1(uhci_softc_t *); + +int +uhci_intr(void *arg) +{ + uhci_softc_t *sc = arg; + + if (sc->sc_dying) + return (0); + + DPRINTFN(15,("uhci_intr: real interrupt\n")); + if (sc->sc_bus.use_polling) { +#ifdef DIAGNOSTIC + printf("uhci_intr: ignored interrupt while polling\n"); +#endif + return (0); + } + return (uhci_intr1(sc)); +} + +int +uhci_intr1(uhci_softc_t *sc) +{ + + int status; + int ack; + + /* + * It can happen that an interrupt will be delivered to + * us before the device has been fully attached and the + * softc struct has been configured. Usually this happens + * when kldloading the USB support as a module after the + * system has been booted. If we detect this condition, + * we need to squelch the unwanted interrupts until we're + * ready for them. + */ + if (sc->sc_bus.bdev == NULL) { + UWRITE2(sc, UHCI_STS, 0xFFFF); /* ack pending interrupts */ + uhci_run(sc, 0); /* stop the controller */ + UWRITE2(sc, UHCI_INTR, 0); /* disable interrupts */ + return(0); + } + +#ifdef USB_DEBUG + if (uhcidebug > 15) { + DPRINTF(("%s: uhci_intr1\n", device_get_nameunit(sc->sc_bus.bdev))); + uhci_dumpregs(sc); + } +#endif + status = UREAD2(sc, UHCI_STS) & UHCI_STS_ALLINTRS; + if (status == 0) /* The interrupt was not for us. */ + return (0); + +#if defined(DIAGNOSTIC) && defined(__NetBSD__) + if (sc->sc_suspend != PWR_RESUME) + printf("uhci_intr: suspended sts=0x%x\n", status); +#endif + + if (sc->sc_suspend != PWR_RESUME) { + printf("%s: interrupt while not operating ignored\n", + device_get_nameunit(sc->sc_bus.bdev)); + UWRITE2(sc, UHCI_STS, status); /* acknowledge the ints */ + 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 USB_DEBUG + printf("%s: resume detect\n", device_get_nameunit(sc->sc_bus.bdev)); +#endif + } + if (status & UHCI_STS_HSE) { + ack |= UHCI_STS_HSE; + printf("%s: host system error\n", device_get_nameunit(sc->sc_bus.bdev)); + } + if (status & UHCI_STS_HCPE) { + ack |= UHCI_STS_HCPE; + printf("%s: host controller process error\n", + device_get_nameunit(sc->sc_bus.bdev)); + } + if (status & UHCI_STS_HCH) { + /* no acknowledge needed */ + if (!sc->sc_dying) { + printf("%s: host controller halted\n", + device_get_nameunit(sc->sc_bus.bdev)); +#ifdef USB_DEBUG + uhci_dump_all(sc); +#endif + } + sc->sc_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_intr: exit\n", device_get_nameunit(sc->sc_bus.bdev))); + + return (1); +} + +void +uhci_softintr(void *v) +{ + uhci_softc_t *sc = v; + uhci_intr_info_t *ii, *nextii; + + DPRINTFN(10,("%s: uhci_softintr (%d)\n", device_get_nameunit(sc->sc_bus.bdev), + sc->sc_bus.intr_context)); + + 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. + */ + LIST_FOREACH_SAFE(ii, &sc->sc_intrhead, list, nextii) + uhci_check_intr(sc, ii); + +#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 +uhci_check_intr(uhci_softc_t *sc, uhci_intr_info_t *ii) +{ + uhci_soft_td_t *std, *lstd; + u_int32_t status; + + DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); +#ifdef DIAGNOSTIC + if (ii == NULL) { + printf("uhci_check_intr: no ii? %p\n", ii); + return; + } +#endif + if (ii->xfer->status == USBD_CANCELLED || + ii->xfer->status == USBD_TIMEOUT) { + DPRINTF(("uhci_check_intr: aborted xfer=%p\n", ii->xfer)); + return; + } + + if (ii->stdstart == NULL) + return; + lstd = ii->stdend; +#ifdef DIAGNOSTIC + if (lstd == NULL) { + printf("uhci_check_intr: std==0\n"); + 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 (le32toh(lstd->td.td_status) & UHCI_TD_ACTIVE) { + DPRINTFN(12, ("uhci_check_intr: active ii=%p\n", ii)); + for (std = ii->stdstart; std != lstd; std = std->link.std) { + status = le32toh(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(le32toh(std->td.td_token))) + goto done; + } + DPRINTFN(12, ("uhci_check_intr: ii=%p std=%p still active\n", + ii, ii->stdstart)); + return; + } + done: + DPRINTFN(12, ("uhci_check_intr: ii=%p done\n", ii)); + callout_stop(&ii->xfer->timeout_handle); + usb_rem_task(ii->xfer->pipe->device, &UXFER(ii->xfer)->abort_task); + uhci_idone(ii); +} + +/* Called at splusb() */ +void +uhci_idone(uhci_intr_info_t *ii) +{ + usbd_xfer_handle xfer = ii->xfer; + struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; + uhci_soft_td_t *std; + u_int32_t status = 0, nstatus; + int actlen; + + DPRINTFN(12, ("uhci_idone: ii=%p\n", ii)); +#ifdef DIAGNOSTIC + { + int s = splhigh(); + if (ii->isdone) { + splx(s); +#ifdef USB_DEBUG + printf("uhci_idone: ii is done!\n "); + uhci_dump_ii(ii); +#else + printf("uhci_idone: ii=%p is done!\n", ii); +#endif + return; + } + ii->isdone = 1; + splx(s); + } +#endif + + if (xfer->nframes != 0) { + /* Isoc transfer, do things differently. */ + uhci_soft_td_t **stds = upipe->u.iso.stds; + int i, n, nframes, len; + + DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); + + nframes = xfer->nframes; + actlen = 0; + n = UXFER(xfer)->curframe; + for (i = 0; i < nframes; i++) { + std = stds[n]; +#ifdef USB_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 = le32toh(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 USB_DEBUG + DPRINTFN(10, ("uhci_idone: ii=%p, xfer=%p, pipe=%p ready\n", + ii, xfer, upipe)); + if (uhcidebug > 10) + uhci_dump_tds(ii->stdstart); +#endif + + /* The transfer is done, compute actual length and status. */ + actlen = 0; + for (std = ii->stdstart; std != NULL; std = std->link.std) { + nstatus = le32toh(std->td.td_status); + if (nstatus & UHCI_TD_ACTIVE) + break; + + status = nstatus; + if (UHCI_TD_GET_PID(le32toh(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(le32toh(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 USB_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->pipe->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: + uhci_transfer_complete(xfer); + DPRINTFN(12, ("uhci_idone: ii=%p done\n", ii)); +} + +/* + * Called when a request does not complete. + */ +void +uhci_timeout(void *addr) +{ + uhci_intr_info_t *ii = addr; + struct uhci_xfer *uxfer = UXFER(ii->xfer); + struct uhci_pipe *upipe = (struct uhci_pipe *)uxfer->xfer.pipe; + uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; + + DPRINTF(("uhci_timeout: uxfer=%p\n", uxfer)); + + if (sc->sc_dying) { + uhci_abort_xfer(&uxfer->xfer, USBD_TIMEOUT); + return; + } + + /* Execute the abort in a process context. */ + usb_add_task(uxfer->xfer.pipe->device, &uxfer->abort_task, + USB_TASKQ_HC); +} + +void +uhci_timeout_task(void *addr) +{ + usbd_xfer_handle xfer = addr; + int s; + + DPRINTF(("uhci_timeout_task: xfer=%p\n", xfer)); + + s = splusb(); + uhci_abort_xfer(xfer, USBD_TIMEOUT); + splx(s); +} + +/* + * Wait here until controller claims to have an interrupt. + * Then call uhci_intr and return. Use timeout to avoid waiting + * too long. + * Only used during boot when interrupts are not enabled yet. + */ +void +uhci_waitintr(uhci_softc_t *sc, usbd_xfer_handle xfer) +{ + int timo = xfer->timeout; + uhci_intr_info_t *ii; + + DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); + + xfer->status = USBD_IN_PROGRESS; + for (; timo >= 0; timo--) { + usb_delay_ms(&sc->sc_bus, 1); + DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); + if (UREAD2(sc, UHCI_STS) & UHCI_STS_ALLINTRS) + uhci_intr1(sc); + if (xfer->status != USBD_IN_PROGRESS) + return; + } + + /* Timeout */ + DPRINTF(("uhci_waitintr: timeout\n")); + for (ii = LIST_FIRST(&sc->sc_intrhead); + ii != NULL && ii->xfer != xfer; + ii = LIST_NEXT(ii, list)) + ; +#ifdef DIAGNOSTIC + if (ii == NULL) + panic("uhci_waitintr: lost intr_info"); +#endif + uhci_idone(ii); +} + +void +uhci_poll(struct usbd_bus *bus) +{ + uhci_softc_t *sc = (uhci_softc_t *)bus; + + if (UREAD2(sc, UHCI_STS) & UHCI_STS_ALLINTRS) + uhci_intr1(sc); +} + +void +uhci_reset(uhci_softc_t *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", + device_get_nameunit(sc->sc_bus.bdev)); +} + +usbd_status +uhci_run(uhci_softc_t *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", device_get_nameunit(sc->sc_bus.bdev), + 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. + */ + +uhci_soft_td_t * +uhci_alloc_std(uhci_softc_t *sc) +{ + uhci_soft_td_t *std; + usbd_status err; + int i, offs; + usb_dma_t dma; + + if (sc->sc_freetds == NULL) { + DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); + err = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, + UHCI_TD_ALIGN, &dma); + if (err) + return (0); + 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; + std->aux_dma.block = NULL; + std->aux_data = NULL; + std->aux_len = 0; + sc->sc_freetds = std; + } + } + std = sc->sc_freetds; + sc->sc_freetds = std->link.std; + memset(&std->td, 0, sizeof(uhci_td_t)); + return std; +} + +void +uhci_free_std(uhci_softc_t *sc, uhci_soft_td_t *std) +{ +#ifdef DIAGNOSTIC +#define TD_IS_FREE 0x12345678 + if (le32toh(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 + if (std->aux_dma.block != NULL) { + usb_freemem(&sc->sc_bus, &std->aux_dma); + std->aux_dma.block = NULL; + std->aux_data = NULL; + std->aux_len = 0; + } + std->link.std = sc->sc_freetds; + sc->sc_freetds = std; +} + +uhci_soft_qh_t * +uhci_alloc_sqh(uhci_softc_t *sc) +{ + uhci_soft_qh_t *sqh; + usbd_status err; + int i, offs; + usb_dma_t dma; + + if (sc->sc_freeqhs == NULL) { + DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); + err = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, + UHCI_QH_ALIGN, &dma); + if (err) + return (0); + 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(uhci_qh_t)); + return (sqh); +} + +void +uhci_free_sqh(uhci_softc_t *sc, uhci_soft_qh_t *sqh) +{ + sqh->hlink = sc->sc_freeqhs; + sc->sc_freeqhs = sqh; +} + +void +uhci_free_std_chain(uhci_softc_t *sc, uhci_soft_td_t *std, + uhci_soft_td_t *stdend) +{ + uhci_soft_td_t *p; + + for (; std != stdend; std = p) { + p = std->link.std; + uhci_free_std(sc, std); + } +} + +usbd_status +uhci_alloc_std_chain(struct uhci_pipe *upipe, uhci_softc_t *sc, int len, + int rd, u_int16_t flags, usbd_xfer_handle xfer, + uhci_soft_td_t **sp, uhci_soft_td_t **ep) +{ + struct usb_dma_mapping *dma = &xfer->dmamap; + uhci_soft_td_t *p, *prevp, *startp; + int err, i, ntd, l, tog, maxp, seg, segoff; + u_int32_t status; + int addr = upipe->pipe.device->address; + int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; + + DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d speed=%d " + "flags=0x%x\n", addr, UE_GET_ADDR(endpt), len, + upipe->pipe.device->speed, flags)); + maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); + if (maxp == 0) { + printf("uhci_alloc_std_chain: maxp=0\n"); + return (USBD_INVAL); + } + ntd = (len + maxp - 1) / maxp; + if (len == 0) + flags |= USBD_FORCE_SHORT_XFER; + if ((flags & USBD_FORCE_SHORT_XFER) && len % maxp == 0) + ntd++; + DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); + KASSERT(ntd > 0, ("uhci_alloc_std_chain: ntd=0")); + tog = upipe->nexttoggle; + prevp = NULL; + startp = NULL; + status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); + if (upipe->pipe.device->speed == USB_SPEED_LOW) + status |= UHCI_TD_LS; + if (flags & USBD_SHORT_XFER_OK) + status |= UHCI_TD_SPD; + seg = 0; + segoff = 0; + for (i = 0; i < ntd; i++) { + p = uhci_alloc_std(sc); + if (p == NULL) { + uhci_free_std_chain(sc, startp, NULL); + return (USBD_NOMEM); + } + p->link.std = NULL; + if (prevp != NULL) { + prevp->link.std = p; + prevp->td.td_link = htole32(p->physaddr | UHCI_PTR_VF | + UHCI_PTR_TD); + } else { + startp = p; + } + p->td.td_status = htole32(status); + if (i == ntd - 1) { + /* last TD */ + l = len % maxp; + if (l == 0 && !(flags & USBD_FORCE_SHORT_XFER)) + l = maxp; + *ep = p; + } else + l = maxp; + p->td.td_token = + htole32(rd ? UHCI_TD_IN (l, endpt, addr, tog) : + UHCI_TD_OUT(l, endpt, addr, tog)); + + KASSERT(seg < dma->nsegs || l == 0, + ("uhci_alloc_std_chain: too few segments")); + if (l == 0) { + p->td.td_buffer = 0; + } else if (l > dma->segs[seg].ds_len - segoff) { + /* UHCI can't handle non-contiguous data. */ + err = uhci_aux_dma_alloc(sc, p, (char *)xfer->buffer + + i * maxp, l); + if (err) { + uhci_free_std_chain(sc, startp, NULL); + return (err); + } + p->td.td_buffer = htole32(uhci_aux_dma_prepare(p, rd)); + l -= dma->segs[seg].ds_len - segoff; + seg++; + KASSERT(seg < dma->nsegs, + ("uhci_alloc_std_chain: too few segments 2")); + segoff = 0; + } else { + p->td.td_buffer = htole32(dma->segs[seg].ds_addr + + segoff); + } + segoff += l; + if (l > 0 && segoff >= dma->segs[seg].ds_len) { + KASSERT(segoff == dma->segs[seg].ds_len, + ("uhci_alloc_std_chain: overlap")); + if (i * maxp + l != len) { + seg++; + segoff = 0; + } + } + prevp = p; + tog ^= 1; + } + prevp->td.td_link = htole32(UHCI_PTR_T | UHCI_PTR_VF | UHCI_PTR_TD); + upipe->nexttoggle = tog; + *sp = startp; + DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", + upipe->nexttoggle)); + return (USBD_NORMAL_COMPLETION); +} + +/* + * Allocate a physically contiguous buffer to handle cases where UHCI + * cannot handle a packet because it is not physically contiguous. + * If the usb_dma_t was already allocated this just ensures it is + * large enough for the specified size. + */ +static usbd_status +uhci_aux_dma_alloc(uhci_softc_t *sc, uhci_soft_td_t *std, void *data, int len) +{ + int err, align; + + if (std->aux_dma.block == NULL || std->aux_dma.block->size < len) { + /* Align to avoid crossing a page boundary. */ + if (powerof2(len)) + align = len; + else + align = 1 << fls(len); + + if (std->aux_dma.block != NULL) + usb_freemem(&sc->sc_bus, &std->aux_dma); + std->aux_dma.block = NULL; + err = usb_allocmem(&sc->sc_bus, len, align, &std->aux_dma); + if (err) + return (err); + } + std->aux_data = data; + std->aux_len = len; + + return (USBD_NORMAL_COMPLETION); +} + +static uhci_physaddr_t +uhci_aux_dma_prepare(uhci_soft_td_t *std, int isread) +{ + if (!isread) { + bcopy(std->aux_data, KERNADDR(&std->aux_dma, 0), std->aux_len); + bus_dmamap_sync(std->aux_dma.block->tag, + std->aux_dma.block->map, BUS_DMASYNC_PREWRITE); + } + + return (DMAADDR(&std->aux_dma, 0)); +} + +static void +uhci_aux_dma_complete(uhci_soft_td_t *std, int isread) +{ + if (isread) { + bus_dmamap_sync(std->aux_dma.block->tag, + std->aux_dma.block->map, BUS_DMASYNC_POSTREAD); + bcopy(KERNADDR(&std->aux_dma, 0), std->aux_data, std->aux_len); + } +} + +void +uhci_device_clear_toggle(usbd_pipe_handle pipe) +{ + struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; + upipe->nexttoggle = 0; +} + +void +uhci_noop(usbd_pipe_handle pipe) +{ +} + +usbd_status +uhci_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 (otherwise err would be USBD_INPROG), + * so start it first. + */ + return (uhci_device_bulk_start(STAILQ_FIRST(&xfer->pipe->queue))); +} + +usbd_status +uhci_device_bulk_start(usbd_xfer_handle xfer) +{ + struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; + usbd_device_handle dev = upipe->pipe.device; + uhci_softc_t *sc = (uhci_softc_t *)dev->bus; + uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; + uhci_soft_td_t *data, *dataend; + uhci_soft_qh_t *sqh; + usbd_status err; + int len, isread, endpt; + int s; + + DPRINTFN(3, ("uhci_device_bulk_start: xfer=%p len=%d flags=%d ii=%p\n", + xfer, xfer->length, xfer->flags, ii)); + + if (sc->sc_dying) + return (USBD_IOERROR); + +#ifdef DIAGNOSTIC + if (xfer->rqflags & URQ_REQUEST) + panic("uhci_device_bulk_transfer: a request"); +#endif + + len = xfer->length; + endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; + isread = UE_GET_DIR(endpt) == UE_DIR_IN; + sqh = upipe->u.bulk.sqh; + + upipe->u.bulk.isread = isread; + upipe->u.bulk.length = len; + + err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, xfer, + &data, &dataend); + if (err) + return (err); + dataend->td.td_status |= htole32(UHCI_TD_IOC); + +#ifdef USB_DEBUG + if (uhcidebug > 8) { + DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); + uhci_dump_tds(data); + } +#endif + + /* Set up interrupt info. */ + ii->xfer = xfer; + ii->stdstart = data; + ii->stdend = dataend; +#ifdef DIAGNOSTIC + if (!ii->isdone) { + printf("uhci_device_bulk_transfer: not done, ii=%p\n", ii); + } + ii->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_info(sc, ii); + + if (xfer->timeout && !sc->sc_bus.use_polling) { + callout_reset(&xfer->timeout_handle, MS_TO_TICKS(xfer->timeout), + uhci_timeout, ii); + } + xfer->status = USBD_IN_PROGRESS; + splx(s); + +#ifdef USB_DEBUG + if (uhcidebug > 10) { + DPRINTF(("uhci_device_bulk_transfer: data(2)\n")); + uhci_dump_tds(data); + } +#endif + + if (sc->sc_bus.use_polling) + uhci_waitintr(sc, xfer); + + return (USBD_IN_PROGRESS); +} + +/* Abort a device bulk request. */ +void +uhci_device_bulk_abort(usbd_xfer_handle 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(usbd_xfer_handle xfer, usbd_status status) +{ + struct uhci_xfer *uxfer = UXFER(xfer); + uhci_intr_info_t *ii = &uxfer->iinfo; + struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; + uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; + uhci_soft_td_t *std; + int s; + + DPRINTFN(1,("uhci_abort_xfer: xfer=%p, status=%d\n", xfer, status)); + + if (sc->sc_dying) { + /* If we're dying, just do the software part. */ + s = splusb(); + xfer->status = status; /* make software ignore it */ + callout_stop(&xfer->timeout_handle); + usb_rem_task(xfer->pipe->device, &UXFER(xfer)->abort_task); + uhci_transfer_complete(xfer); + splx(s); + return; + } + + if (xfer->device->bus->intr_context || !curproc) + panic("uhci_abort_xfer: not in process context"); + + /* + * If an abort is already in progress then just wait for it to + * complete and return. + */ + if (uxfer->uhci_xfer_flags & UHCI_XFER_ABORTING) { + DPRINTFN(2, ("uhci_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, ("uhci_abort_xfer: waiting for abort to finish\n")); + uxfer->uhci_xfer_flags |= UHCI_XFER_ABORTWAIT; + while (uxfer->uhci_xfer_flags & UHCI_XFER_ABORTING) + tsleep(&uxfer->uhci_xfer_flags, PZERO, "uhciaw", 0); + return; + } + + /* + * Step 1: Make interrupt routine and hardware ignore xfer. + */ + s = splusb(); + uxfer->uhci_xfer_flags |= UHCI_XFER_ABORTING; + xfer->status = status; /* make software ignore it */ + callout_stop(&xfer->timeout_handle); + usb_rem_task(xfer->pipe->device, &UXFER(xfer)->abort_task); + DPRINTFN(1,("uhci_abort_xfer: stop ii=%p\n", ii)); + for (std = ii->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(upipe->pipe.device->bus, 2); /* Hardware finishes in 1ms */ + s = splusb(); +#ifdef USB_USE_SOFTINTR + sc->sc_softwake = 1; +#endif /* USB_USE_SOFTINTR */ + usb_schedsoftintr(&sc->sc_bus); +#ifdef USB_USE_SOFTINTR + DPRINTFN(1,("uhci_abort_xfer: tsleep\n")); + tsleep(&sc->sc_softwake, PZERO, "uhciab", 0); +#endif /* USB_USE_SOFTINTR */ + splx(s); + + /* + * Step 3: Execute callback. + */ + DPRINTFN(1,("uhci_abort_xfer: callback\n")); + s = splusb(); +#ifdef DIAGNOSTIC + ii->isdone = 1; +#endif + /* Do the wakeup first to avoid touching the xfer after the callback. */ + uxfer->uhci_xfer_flags &= ~UHCI_XFER_ABORTING; + if (uxfer->uhci_xfer_flags & UHCI_XFER_ABORTWAIT) { + uxfer->uhci_xfer_flags &= ~UHCI_XFER_ABORTWAIT; + wakeup(&uxfer->uhci_xfer_flags); + } + uhci_transfer_complete(xfer); + splx(s); +} + +/* + * Perform any UHCI-specific transfer completion operations, then + * call usb_transfer_complete(). + */ +static void +uhci_transfer_complete(usbd_xfer_handle xfer) +{ + uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; + struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; + uhci_soft_td_t *p; + int i, isread, n; + + /* XXX, must be an easier way to detect reads... */ + isread = ((xfer->rqflags & URQ_REQUEST) && + (xfer->request.bmRequestType & UT_READ)) || + (xfer->pipe->endpoint->edesc->bEndpointAddress & UE_DIR_IN); + + /* Copy back from any auxillary buffers after a read operation. */ + if (xfer->nframes == 0) { + for (p = ii->stdstart; p != NULL; p = p->link.std) { + if (p->aux_data != NULL) + uhci_aux_dma_complete(p, isread); + } + } else { + if (xfer->nframes != 0) { + /* Isoc transfer, do things differently. */ + n = UXFER(xfer)->curframe; + for (i = 0; i < xfer->nframes; i++) { + p = upipe->u.iso.stds[n]; + if (p->aux_data != NULL) + uhci_aux_dma_complete(p, isread); + if (++n >= UHCI_VFRAMELIST_COUNT) + n = 0; + } + } + } + + usb_transfer_complete(xfer); +} + +/* Close a device bulk pipe. */ +void +uhci_device_bulk_close(usbd_pipe_handle pipe) +{ + struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; + usbd_device_handle dev = upipe->pipe.device; + uhci_softc_t *sc = (uhci_softc_t *)dev->bus; + + uhci_free_sqh(sc, upipe->u.bulk.sqh); + pipe->endpoint->savedtoggle = upipe->nexttoggle; +} + +usbd_status +uhci_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 (otherwise err would be USBD_INPROG), + * so start it first. + */ + return (uhci_device_ctrl_start(STAILQ_FIRST(&xfer->pipe->queue))); +} + +usbd_status +uhci_device_ctrl_start(usbd_xfer_handle xfer) +{ + uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; + usbd_status err; + + if (sc->sc_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); + + if (sc->sc_bus.use_polling) + uhci_waitintr(sc, xfer); + return (USBD_IN_PROGRESS); +} + +usbd_status +uhci_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 (uhci_device_intr_start(STAILQ_FIRST(&xfer->pipe->queue))); +} + +usbd_status +uhci_device_intr_start(usbd_xfer_handle xfer) +{ + struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; + usbd_device_handle dev = upipe->pipe.device; + uhci_softc_t *sc = (uhci_softc_t *)dev->bus; + uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; + uhci_soft_td_t *data, *dataend; + uhci_soft_qh_t *sqh; + usbd_status err; + int isread, endpt; + int i, s; + + if (sc->sc_dying) + return (USBD_IOERROR); + + DPRINTFN(3,("uhci_device_intr_transfer: xfer=%p len=%d flags=%d\n", + xfer, xfer->length, xfer->flags)); + +#ifdef DIAGNOSTIC + if (xfer->rqflags & URQ_REQUEST) + panic("uhci_device_intr_transfer: a request"); +#endif + + endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; + isread = UE_GET_DIR(endpt) == UE_DIR_IN; + sqh = upipe->u.bulk.sqh; + + upipe->u.intr.isread = isread; + + err = uhci_alloc_std_chain(upipe, sc, xfer->length, isread, xfer->flags, + xfer, &data, &dataend); + if (err) + return (err); + dataend->td.td_status |= htole32(UHCI_TD_IOC); + +#ifdef USB_DEBUG + if (uhcidebug > 10) { + DPRINTF(("uhci_device_intr_transfer: data(1)\n")); + uhci_dump_tds(data); + uhci_dump_qh(upipe->u.intr.qhs[0]); + } +#endif + + s = splusb(); + /* Set up interrupt info. */ + ii->xfer = xfer; + ii->stdstart = data; + ii->stdend = dataend; +#ifdef DIAGNOSTIC + if (!ii->isdone) { + printf("uhci_device_intr_transfer: not done, ii=%p\n", ii); + } + ii->isdone = 0; +#endif + + DPRINTFN(10,("uhci_device_intr_transfer: 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_info(sc, ii); + xfer->status = USBD_IN_PROGRESS; + splx(s); + +#ifdef USB_DEBUG + if (uhcidebug > 10) { + DPRINTF(("uhci_device_intr_transfer: 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(usbd_xfer_handle xfer) +{ + DPRINTF(("uhci_device_ctrl_abort:\n")); + uhci_abort_xfer(xfer, USBD_CANCELLED); +} + +/* Close a device control pipe. */ +void +uhci_device_ctrl_close(usbd_pipe_handle pipe) +{ +} + +/* Abort a device interrupt request. */ +void +uhci_device_intr_abort(usbd_xfer_handle xfer) +{ + DPRINTFN(1,("uhci_device_intr_abort: xfer=%p\n", xfer)); + if (xfer->pipe->intrxfer == xfer) { + DPRINTFN(1,("uhci_device_intr_abort: remove\n")); + xfer->pipe->intrxfer = NULL; + } + uhci_abort_xfer(xfer, USBD_CANCELLED); +} + +/* Close a device interrupt pipe. */ +void +uhci_device_intr_close(usbd_pipe_handle pipe) +{ + struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; + uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; + int i, npoll; + int s; + + /* Unlink descriptors from controller data structures. */ + 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(upipe->u.intr.qhs, M_USBHC); + + /* XXX free other resources */ +} + +usbd_status +uhci_device_request(usbd_xfer_handle xfer) +{ + struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; + usb_device_request_t *req = &xfer->request; + usbd_device_handle dev = upipe->pipe.device; + uhci_softc_t *sc = (uhci_softc_t *)dev->bus; + int addr = dev->address; + int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; + uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; + uhci_soft_td_t *setup, *data, *stat, *next, *dataend; + uhci_soft_qh_t *sqh; + int len; + u_int32_t ls; + usbd_status err; + int isread; + int s; + + DPRINTFN(3,("uhci_device_control 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), UGETW(req->wLength), + addr, endpt)); + + ls = dev->speed == USB_SPEED_LOW ? UHCI_TD_LS : 0; + isread = req->bmRequestType & UT_READ; + 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(upipe, sc, len, isread, xfer->flags, + 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(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : + UHCI_TD_IN (0, endpt, addr, 1)); + stat->td.td_buffer = htole32(0); + +#ifdef USB_DEBUG + if (uhcidebug > 10) { + DPRINTF(("uhci_device_request: before transfer\n")); + uhci_dump_tds(setup); + } +#endif + + /* Set up interrupt info. */ + ii->xfer = xfer; + ii->stdstart = setup; + ii->stdend = stat; +#ifdef DIAGNOSTIC + if (!ii->isdone) { + printf("uhci_device_request: not done, ii=%p\n", ii); + } + ii->isdone = 0; +#endif + + sqh->elink = setup; + sqh->qh.qh_elink = htole32(setup->physaddr | UHCI_PTR_TD); + + s = splusb(); + if (dev->speed == USB_SPEED_LOW) + uhci_add_ls_ctrl(sc, sqh); + else + uhci_add_hs_ctrl(sc, sqh); + uhci_add_intr_info(sc, ii); +#ifdef USB_DEBUG + if (uhcidebug > 12) { + uhci_soft_td_t *std; + uhci_soft_qh_t *xqh; + uhci_soft_qh_t *sxqh; + int maxqh = 0; + uhci_physaddr_t link; + DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); + for (std = sc->sc_vframes[0].htd, link = 0; + (link & UHCI_PTR_QH) == 0; + std = std->link.std) { + link = le32toh(std->td.td_link); + uhci_dump_td(std); + } + sxqh = (uhci_soft_qh_t *)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) { + callout_reset(&xfer->timeout_handle, MS_TO_TICKS(xfer->timeout), + uhci_timeout, ii); + } + xfer->status = USBD_IN_PROGRESS; + splx(s); + + return (USBD_NORMAL_COMPLETION); +} + +usbd_status +uhci_device_isoc_transfer(usbd_xfer_handle 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(STAILQ_FIRST(&xfer->pipe->queue)); + + return (err); +} + +void +uhci_device_isoc_enter(usbd_xfer_handle xfer) +{ + struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; + usbd_device_handle dev = upipe->pipe.device; + uhci_softc_t *sc = (uhci_softc_t *)dev->bus; + struct iso *iso = &upipe->u.iso; + uhci_soft_td_t *std; + void *dataptr; + u_int32_t len, status; + int err, s, i, isread, next, nframes, seg, segoff; + + 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_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; + UXFER(xfer)->curframe = next; + + seg = 0; + segoff = 0; + dataptr = xfer->allocbuf; /* Normal buffers not possible for isoc? */ + isread = xfer->pipe->endpoint->edesc->bEndpointAddress & UE_DIR_IN; + 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]; + KASSERT(seg < xfer->dmamap.nsegs, + ("uhci_device_isoc_enter: too few segments")); + if (len + segoff > xfer->dmamap.segs[seg].ds_len) { + /* UHCI can't handle non-contiguous data. */ + err = uhci_aux_dma_alloc(sc, std, dataptr, len); + /* XXX */ + if (err) + printf("uhci_device_isoc_enter: aux alloc\n"); + std->td.td_buffer = htole32(uhci_aux_dma_prepare(std, + isread)); + segoff += len; + while (segoff >= xfer->dmamap.segs[seg].ds_len) { + KASSERT(seg < xfer->dmamap.nsegs - 1 || + segoff == xfer->dmamap.segs[seg].ds_len, + ("uhci_device_isoc_enter: overlap2")); + segoff -= xfer->dmamap.segs[seg].ds_len; + seg++; + } + } else { + std->td.td_buffer = + htole32(xfer->dmamap.segs[seg].ds_addr + segoff); + segoff += len; + if (segoff >= xfer->dmamap.segs[seg].ds_len) { + KASSERT(segoff == xfer->dmamap.segs[seg].ds_len, + ("uhci_device_isoc_enter: overlap")); + segoff = 0; + seg++; + } + } + 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 USB_DEBUG + if (uhcidebug > 5) { + DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); + uhci_dump_td(std); + } +#endif + dataptr = (char *)dataptr + len; + } + iso->next = next; + iso->inuse += xfer->nframes; + + splx(s); +} + +usbd_status +uhci_device_isoc_start(usbd_xfer_handle xfer) +{ + struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; + uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; + uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; + uhci_soft_td_t *end; + int s, i; + + DPRINTFN(5,("uhci_device_isoc_start: xfer=%p\n", xfer)); + + if (sc->sc_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 = UXFER(xfer)->curframe + xfer->nframes; + 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. */ + ii->xfer = xfer; + ii->stdstart = end; + ii->stdend = end; +#ifdef DIAGNOSTIC + if (!ii->isdone) + printf("uhci_device_isoc_start: not done, ii=%p\n", ii); + ii->isdone = 0; +#endif + uhci_add_intr_info(sc, ii); + + splx(s); + + return (USBD_IN_PROGRESS); +} + +void +uhci_device_isoc_abort(usbd_xfer_handle xfer) +{ + struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; + uhci_soft_td_t **stds = upipe->u.iso.stds; + uhci_soft_td_t *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 = UXFER(xfer)->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(le32toh(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 + UXFER(xfer)->iinfo.isdone = 1; +#endif + /* Run callback and remove from interrupt list. */ + uhci_transfer_complete(xfer); + + splx(s); +} + +void +uhci_device_isoc_close(usbd_pipe_handle pipe) +{ + struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; + usbd_device_handle dev = upipe->pipe.device; + uhci_softc_t *sc = (uhci_softc_t *)dev->bus; + uhci_soft_td_t *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); +} + +usbd_status +uhci_setup_isoc(usbd_pipe_handle pipe) +{ + struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; + usbd_device_handle dev = upipe->pipe.device; + uhci_softc_t *sc = (uhci_softc_t *)dev->bus; + int addr = upipe->pipe.device->address; + int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; + int rd = UE_GET_DIR(endpt) == UE_DIR_IN; + uhci_soft_td_t *std, *vstd; + u_int32_t token; + struct iso *iso; + int i, s; + + iso = &upipe->u.iso; + iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), + 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); + return (USBD_NOMEM); +} + +void +uhci_device_isoc_done(usbd_xfer_handle xfer) +{ + uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; + + DPRINTFN(4, ("uhci_isoc_done: length=%d\n", xfer->actlen)); + + if (ii->xfer != xfer) + /* Not on interrupt list, ignore it. */ + return; + + if (!uhci_active_intr_info(ii)) + return; + +#ifdef DIAGNOSTIC + if (xfer->busy_free != XFER_BUSY) { + printf("uhci_device_isoc_done: xfer=%p not busy 0x%08x\n", + xfer, xfer->busy_free); + return; + } + + if (ii->stdend == NULL) { + printf("uhci_device_isoc_done: xfer=%p stdend==NULL\n", xfer); +#ifdef USB_DEBUG + uhci_dump_ii(ii); +#endif + return; + } +#endif + + /* Turn off the interrupt since it is active even if the TD is not. */ + ii->stdend->td.td_status &= htole32(~UHCI_TD_IOC); + + uhci_del_intr_info(ii); /* remove from active list */ + +#ifdef DIAGNOSTIC + if (ii->stdend == NULL) { + printf("uhci_device_isoc_done: xfer=%p stdend==NULL\n", xfer); +#ifdef USB_DEBUG + uhci_dump_ii(ii); +#endif + return; + } +#endif + ii->stdstart = NULL; + ii->stdend = NULL; +} + +void +uhci_device_intr_done(usbd_xfer_handle xfer) +{ + uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; + uhci_softc_t *sc = ii->sc; + struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; + uhci_soft_qh_t *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, ii->stdstart, NULL); + + /* XXX Wasteful. */ + if (xfer->pipe->repeat) { + uhci_soft_td_t *data, *dataend; + + DPRINTFN(5,("uhci_device_intr_done: requeing\n")); + + /* This alloc cannot fail since we freed the chain above. */ + uhci_alloc_std_chain(upipe, sc, xfer->length, + upipe->u.intr.isread, xfer->flags, xfer, + &data, &dataend); + dataend->td.td_status |= htole32(UHCI_TD_IOC); + +#ifdef USB_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 + + ii->stdstart = data; + ii->stdend = dataend; +#ifdef DIAGNOSTIC + if (!ii->isdone) { + printf("uhci_device_intr_done: not done, ii=%p\n", ii); + } + ii->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 ii is already on the examined list, just leave it. */ + } else { + DPRINTFN(5,("uhci_device_intr_done: removing\n")); + if (uhci_active_intr_info(ii)) { + uhci_del_intr_info(ii); + ii->stdstart = NULL; + ii->stdend = NULL; + } + } +} + +/* Deallocate request data structures */ +void +uhci_device_ctrl_done(usbd_xfer_handle xfer) +{ + uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; + uhci_softc_t *sc = ii->sc; + struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; + +#ifdef DIAGNOSTIC + if (!(xfer->rqflags & URQ_REQUEST)) + panic("uhci_device_ctrl_done: not a request"); +#endif + + if (!uhci_active_intr_info(ii)) + return; + + uhci_del_intr_info(ii); /* remove from active list */ + + if (upipe->pipe.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, ii->stdstart->link.std, ii->stdend); + ii->stdstart = NULL; + ii->stdend = NULL; + + DPRINTFN(5, ("uhci_device_ctrl_done: length=%d\n", xfer->actlen)); +} + +/* Deallocate request data structures */ +void +uhci_device_bulk_done(usbd_xfer_handle xfer) +{ + uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; + uhci_softc_t *sc = ii->sc; + struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; + + DPRINTFN(5,("uhci_device_bulk_done: xfer=%p ii=%p sc=%p upipe=%p\n", + xfer, ii, sc, upipe)); + + if (!uhci_active_intr_info(ii)) + return; + + uhci_del_intr_info(ii); /* remove from active list */ + + uhci_remove_bulk(sc, upipe->u.bulk.sqh); + + uhci_free_std_chain(sc, ii->stdstart, NULL); + ii->stdstart = NULL; + ii->stdend = NULL; + + DPRINTFN(5, ("uhci_device_bulk_done: length=%d\n", xfer->actlen)); +} + +/* Add interrupt QH, called with vflock. */ +void +uhci_add_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) +{ + struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; + uhci_soft_qh_t *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(uhci_softc_t *sc, uhci_soft_qh_t *sqh) +{ + struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; + uhci_soft_qh_t *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(uhci_softc_t *sc, struct uhci_pipe *upipe, int ival) +{ + uhci_soft_qh_t *sqh; + int i, npoll, s; + u_int bestbw, bw, bestoffs, offs; + + DPRINTFN(2, ("uhci_device_setintr: pipe=%p\n", upipe)); + if (ival == 0) { + printf("uhci_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)); + + upipe->u.intr.npoll = npoll; + upipe->u.intr.qhs = + malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); + + /* + * 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++) { + upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); + sqh->elink = NULL; + sqh->qh.qh_elink = htole32(UHCI_PTR_T); + sqh->pos = MOD(i * ival + bestoffs); + } +#undef MOD + + 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(usbd_pipe_handle pipe) +{ + uhci_softc_t *sc = (uhci_softc_t *)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 (%d)\n", + pipe, pipe->device->address, + ed->bEndpointAddress, sc->sc_addr)); + + upipe->aborting = 0; + upipe->nexttoggle = pipe->endpoint->savedtoggle; + + if (pipe->device->address == sc->sc_addr) { + 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 (ed->bmAttributes & UE_XFERTYPE) { + 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; + } + 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 indicies */ + 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_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 */ +}; + +int +uhci_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); +} + +/* + * 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. + */ +static usbd_status +uhci_portreset(uhci_softc_t *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(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 (uhci_root_ctrl_start(STAILQ_FIRST(&xfer->pipe->queue))); +} + +usbd_status +uhci_root_ctrl_start(usbd_xfer_handle xfer) +{ + uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->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_dying) + return (USBD_IOERROR); + +#ifdef DIAGNOSTIC + if (!(xfer->rqflags & URQ_REQUEST)) + panic("uhci_root_ctrl_transfer: not a request"); +#endif + req = &xfer->request; + + DPRINTFN(2,("uhci_root_ctrl_control 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 = xfer->buffer; + +#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_control 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 1: /* Vendor */ + totlen = uhci_str(buf, len, sc->sc_vendor); + break; + case 2: /* Product */ + totlen = uhci_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; + } + 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(3, ("uhci_root_ctrl_control: 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_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(); + uhci_transfer_complete(xfer); + splx(s); + return (USBD_IN_PROGRESS); +} + +/* Abort a root control request. */ +void +uhci_root_ctrl_abort(usbd_xfer_handle xfer) +{ + /* Nothing to do, all transfers are synchronous. */ +} + +/* Close the root pipe. */ +void +uhci_root_ctrl_close(usbd_pipe_handle pipe) +{ + DPRINTF(("uhci_root_ctrl_close\n")); +} + +/* Abort a root interrupt request. */ +void +uhci_root_intr_abort(usbd_xfer_handle xfer) +{ + uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; + + callout_stop(&sc->sc_poll_handle); + sc->sc_intr_xfer = NULL; + + if (xfer->pipe->intrxfer == xfer) { + DPRINTF(("uhci_root_intr_abort: remove\n")); + xfer->pipe->intrxfer = 0; + } + xfer->status = USBD_CANCELLED; +#ifdef DIAGNOSTIC + UXFER(xfer)->iinfo.isdone = 1; +#endif + uhci_transfer_complete(xfer); +} + +usbd_status +uhci_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 (otherwise err would be USBD_INPROG), + * so start it first. + */ + return (uhci_root_intr_start(STAILQ_FIRST(&xfer->pipe->queue))); +} + +/* Start a transfer on the root interrupt pipe */ +usbd_status +uhci_root_intr_start(usbd_xfer_handle xfer) +{ + usbd_pipe_handle pipe = xfer->pipe; + uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; + + DPRINTFN(3, ("uhci_root_intr_start: xfer=%p len=%d flags=%d\n", + xfer, xfer->length, xfer->flags)); + + if (sc->sc_dying) + return (USBD_IOERROR); + + sc->sc_ival = MS_TO_TICKS(xfer->pipe->endpoint->edesc->bInterval); + callout_reset(&sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); + sc->sc_intr_xfer = xfer; + return (USBD_IN_PROGRESS); +} + +/* Close the root interrupt pipe. */ +void +uhci_root_intr_close(usbd_pipe_handle pipe) +{ + uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; + + callout_stop(&sc->sc_poll_handle); + sc->sc_intr_xfer = NULL; + DPRINTF(("uhci_root_intr_close\n")); +} |
