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-rw-r--r--sys/dev/usb/uhci.c3131
1 files changed, 3131 insertions, 0 deletions
diff --git a/sys/dev/usb/uhci.c b/sys/dev/usb/uhci.c
new file mode 100644
index 0000000..0d46903
--- /dev/null
+++ b/sys/dev/usb/uhci.c
@@ -0,0 +1,3131 @@
+/* $NetBSD: uhci.c,v 1.80 2000/01/19 01:16:38 augustss Exp $ */
+/* $FreeBSD$ */
+
+/*
+ * Copyright (c) 1998 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Lennart Augustsson (augustss@carlstedt.se) 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://www.intel.com/design/usb/uhci11d.pdf
+ * USB spec: http://www.usb.org/developers/data/usb11.pdf
+ * 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>
+#if defined(__NetBSD__) || defined(__OpenBSD__)
+#include <sys/device.h>
+#include <sys/select.h>
+#elif defined(__FreeBSD__)
+#include <sys/module.h>
+#include <sys/bus.h>
+#include <machine/bus_pio.h>
+#if defined(DIAGNOSTIC) && defined(__i386__)
+#include <machine/cpu.h>
+#endif
+#endif
+#include <sys/proc.h>
+#include <sys/queue.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>
+
+#if defined(__FreeBSD__)
+#include <machine/clock.h>
+
+#define delay(d) DELAY(d)
+#endif
+
+#define MS_TO_TICKS(ms) ((ms) * hz / 1000)
+
+#if defined(__OpenBSD__)
+struct cfdriver uhci_cd = {
+ NULL, "uhci", DV_DULL
+};
+#endif
+
+#ifdef UHCI_DEBUG
+#define DPRINTF(x) if (uhcidebug) printf x
+#define DPRINTFN(n,x) if (uhcidebug>(n)) printf x
+int uhcidebug = 1;
+#else
+#define DPRINTF(x)
+#define DPRINTFN(n,x)
+#endif
+
+/*
+ * The UHCI controller is little endian, so on big endian machines
+ * the data strored in memory needs to be swapped.
+ */
+#if BYTE_ORDER == BIG_ENDIAN
+#define LE(x) (bswap32(x))
+#else
+#define LE(x) (x)
+#endif
+
+struct uhci_pipe {
+ struct usbd_pipe pipe;
+ uhci_intr_info_t *iinfo;
+ int nexttoggle;
+ /* 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;
+ 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;
+};
+
+/*
+ * The uhci_intr_info free list can be global since they contain
+ * no dma specific data. The other free lists do.
+ */
+LIST_HEAD(, uhci_intr_info) uhci_ii_free;
+
+Static void uhci_busreset __P((uhci_softc_t *));
+Static usbd_status uhci_run __P((uhci_softc_t *, int run));
+Static uhci_soft_td_t *uhci_alloc_std __P((uhci_softc_t *));
+Static void uhci_free_std __P((uhci_softc_t *, uhci_soft_td_t *));
+Static uhci_soft_qh_t *uhci_alloc_sqh __P((uhci_softc_t *));
+Static void uhci_free_sqh __P((uhci_softc_t *, uhci_soft_qh_t *));
+Static uhci_intr_info_t *uhci_alloc_intr_info __P((uhci_softc_t *));
+Static void uhci_free_intr_info __P((uhci_intr_info_t *ii));
+#if 0
+Static void uhci_enter_ctl_q __P((uhci_softc_t *, uhci_soft_qh_t *,
+ uhci_intr_info_t *));
+Static void uhci_exit_ctl_q __P((uhci_softc_t *, uhci_soft_qh_t *));
+#endif
+
+Static void uhci_free_std_chain __P((uhci_softc_t *,
+ uhci_soft_td_t *, uhci_soft_td_t *));
+Static usbd_status uhci_alloc_std_chain __P((struct uhci_pipe *,
+ uhci_softc_t *, int, int, u_int16_t, usb_dma_t *,
+ uhci_soft_td_t **, uhci_soft_td_t **));
+Static void uhci_timo __P((void *));
+Static void uhci_waitintr __P((uhci_softc_t *,
+ usbd_xfer_handle));
+Static void uhci_check_intr __P((uhci_softc_t *,
+ uhci_intr_info_t *));
+Static void uhci_idone __P((uhci_intr_info_t *));
+Static void uhci_abort_xfer __P((usbd_xfer_handle,
+ usbd_status status));
+Static void uhci_abort_xfer_end __P((void *v));
+Static void uhci_timeout __P((void *));
+Static void uhci_lock_frames __P((uhci_softc_t *));
+Static void uhci_unlock_frames __P((uhci_softc_t *));
+Static void uhci_add_ctrl __P((uhci_softc_t *, uhci_soft_qh_t *));
+Static void uhci_add_bulk __P((uhci_softc_t *, uhci_soft_qh_t *));
+Static void uhci_remove_ctrl __P((uhci_softc_t *,uhci_soft_qh_t *));
+Static void uhci_remove_bulk __P((uhci_softc_t *,uhci_soft_qh_t *));
+Static int uhci_str __P((usb_string_descriptor_t *, int, char *));
+
+Static usbd_status uhci_setup_isoc __P((usbd_pipe_handle pipe));
+Static void uhci_device_isoc_enter __P((usbd_xfer_handle));
+
+Static usbd_status uhci_allocm __P((struct usbd_bus *, usb_dma_t *,
+ u_int32_t));
+Static void uhci_freem __P((struct usbd_bus *, usb_dma_t *));
+
+Static usbd_xfer_handle uhci_allocx __P((struct usbd_bus *));
+Static void uhci_freex __P((struct usbd_bus *, usbd_xfer_handle));
+
+Static usbd_status uhci_device_ctrl_transfer __P((usbd_xfer_handle));
+Static usbd_status uhci_device_ctrl_start __P((usbd_xfer_handle));
+Static void uhci_device_ctrl_abort __P((usbd_xfer_handle));
+Static void uhci_device_ctrl_close __P((usbd_pipe_handle));
+Static void uhci_device_ctrl_done __P((usbd_xfer_handle));
+
+Static usbd_status uhci_device_intr_transfer __P((usbd_xfer_handle));
+Static usbd_status uhci_device_intr_start __P((usbd_xfer_handle));
+Static void uhci_device_intr_abort __P((usbd_xfer_handle));
+Static void uhci_device_intr_close __P((usbd_pipe_handle));
+Static void uhci_device_intr_done __P((usbd_xfer_handle));
+
+Static usbd_status uhci_device_bulk_transfer __P((usbd_xfer_handle));
+Static usbd_status uhci_device_bulk_start __P((usbd_xfer_handle));
+Static void uhci_device_bulk_abort __P((usbd_xfer_handle));
+Static void uhci_device_bulk_close __P((usbd_pipe_handle));
+Static void uhci_device_bulk_done __P((usbd_xfer_handle));
+
+Static usbd_status uhci_device_isoc_transfer __P((usbd_xfer_handle));
+Static usbd_status uhci_device_isoc_start __P((usbd_xfer_handle));
+Static void uhci_device_isoc_abort __P((usbd_xfer_handle));
+Static void uhci_device_isoc_close __P((usbd_pipe_handle));
+Static void uhci_device_isoc_done __P((usbd_xfer_handle));
+
+Static usbd_status uhci_root_ctrl_transfer __P((usbd_xfer_handle));
+Static usbd_status uhci_root_ctrl_start __P((usbd_xfer_handle));
+Static void uhci_root_ctrl_abort __P((usbd_xfer_handle));
+Static void uhci_root_ctrl_close __P((usbd_pipe_handle));
+
+Static usbd_status uhci_root_intr_transfer __P((usbd_xfer_handle));
+Static usbd_status uhci_root_intr_start __P((usbd_xfer_handle));
+Static void uhci_root_intr_abort __P((usbd_xfer_handle));
+Static void uhci_root_intr_close __P((usbd_pipe_handle));
+Static void uhci_root_intr_done __P((usbd_xfer_handle));
+
+Static usbd_status uhci_open __P((usbd_pipe_handle));
+Static void uhci_poll __P((struct usbd_bus *));
+
+Static usbd_status uhci_device_request __P((usbd_xfer_handle xfer));
+
+Static void uhci_add_intr __P((uhci_softc_t *, int,
+ uhci_soft_qh_t *));
+Static void uhci_remove_intr __P((uhci_softc_t *, int,
+ uhci_soft_qh_t *));
+Static usbd_status uhci_device_setintr __P((uhci_softc_t *sc,
+ struct uhci_pipe *pipe, int ival));
+
+Static void uhci_device_clear_toggle __P((usbd_pipe_handle pipe));
+Static void uhci_noop __P((usbd_pipe_handle pipe));
+
+#ifdef UHCI_DEBUG
+Static void uhci_dumpregs __P((uhci_softc_t *));
+Static void uhci_dump_qhs __P((uhci_soft_qh_t *));
+Static void uhci_dump_qh __P((uhci_soft_qh_t *));
+Static void uhci_dump_tds __P((uhci_soft_td_t *));
+Static void uhci_dump_td __P((uhci_soft_td_t *));
+#endif
+
+#define UWRITE2(sc, r, x) bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x))
+#define UWRITE4(sc, r, x) bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x))
+#define UREAD1(sc, r) bus_space_read_1((sc)->iot, (sc)->ioh, (r))
+#define UREAD2(sc, r) bus_space_read_2((sc)->iot, (sc)->ioh, (r))
+#define UREAD4(sc, r) 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 /* 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_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,
+ 0,
+};
+
+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,
+};
+
+void
+uhci_busreset(sc)
+ 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(sc)
+ uhci_softc_t *sc;
+{
+ usbd_status err;
+ int i, j;
+ uhci_soft_qh_t *csqh, *bsqh, *sqh;
+ uhci_soft_td_t *std;
+
+ DPRINTFN(1,("uhci_init: start\n"));
+
+#ifdef UHCI_DEBUG
+ if (uhcidebug > 2)
+ uhci_dumpregs(sc);
+#endif
+
+ uhci_run(sc, 0); /* stop the controller */
+ UWRITE2(sc, UHCI_INTR, 0); /* disable interrupts */
+
+ uhci_busreset(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 the dummy QH where bulk traffic will be queued. */
+ bsqh = uhci_alloc_sqh(sc);
+ if (bsqh == NULL)
+ return (USBD_NOMEM);
+ bsqh->qh.qh_hlink = LE(UHCI_PTR_T); /* end of QH chain */
+ bsqh->qh.qh_elink = LE(UHCI_PTR_T);
+ sc->sc_bulk_start = sc->sc_bulk_end = bsqh;
+
+ /* Allocate the dummy QH where control traffic will be queued. */
+ csqh = uhci_alloc_sqh(sc);
+ if (csqh == NULL)
+ return (USBD_NOMEM);
+ csqh->hlink = bsqh;
+ csqh->qh.qh_hlink = LE(bsqh->physaddr | UHCI_PTR_Q);
+ csqh->qh.qh_elink = LE(UHCI_PTR_T);
+ sc->sc_ctl_start = sc->sc_ctl_end = csqh;
+
+ /*
+ * 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 = LE(sqh->physaddr | UHCI_PTR_Q);
+ std->td.td_status = LE(UHCI_TD_IOS); /* iso, inactive */
+ std->td.td_token = LE(0);
+ std->td.td_buffer = LE(0);
+ sqh->hlink = csqh;
+ sqh->qh.qh_hlink = LE(csqh->physaddr | UHCI_PTR_Q);
+ sqh->elink = 0;
+ sqh->qh.qh_elink = LE(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] = LE(std->physaddr);
+ }
+
+ LIST_INIT(&sc->sc_intrhead);
+
+ SIMPLEQ_INIT(&sc->sc_free_xfers);
+
+ /* Set up the bus struct. */
+ sc->sc_bus.methods = &uhci_bus_methods;
+ sc->sc_bus.pipe_size = sizeof(struct uhci_pipe);
+
+ sc->sc_suspend = PWR_RESUME;
+#if defined(__NetBSD__)
+ 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... */
+}
+
+#if defined(__NetBSD__) || defined(__OpenBSD__)
+int
+uhci_activate(self, act)
+ device_ptr_t self;
+ enum devact act;
+{
+ struct uhci_softc *sc = (struct uhci_softc *)self;
+ int rv = 0;
+
+ switch (act) {
+ case DVACT_ACTIVATE:
+ return (EOPNOTSUPP);
+ break;
+
+ case DVACT_DEACTIVATE:
+ if (sc->sc_child != NULL)
+ rv = config_deactivate(sc->sc_child);
+ break;
+ }
+ return (rv);
+}
+
+int
+uhci_detach(sc, flags)
+ struct uhci_softc *sc;
+ int flags;
+{
+ usbd_xfer_handle xfer;
+ int rv = 0;
+
+ if (sc->sc_child != NULL)
+ rv = config_detach(sc->sc_child, flags);
+
+ if (rv != 0)
+ return (rv);
+
+#if defined(__NetBSD__)
+ powerhook_disestablish(sc->sc_powerhook);
+ shutdownhook_disestablish(sc->sc_shutdownhook);
+#endif
+
+ /* Free all xfers associated with this HC. */
+ for (;;) {
+ xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers);
+ if (xfer == NULL)
+ break;
+ SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, xfer, next);
+ free(xfer, M_USB);
+ }
+
+ /* XXX free other data structures XXX */
+
+ return (rv);
+}
+#endif
+
+usbd_status
+uhci_allocm(bus, dma, size)
+ struct usbd_bus *bus;
+ usb_dma_t *dma;
+ u_int32_t size;
+{
+ return (usb_allocmem(&((struct uhci_softc *)bus)->sc_bus, size, 0,
+ dma));
+}
+
+void
+uhci_freem(bus, dma)
+ struct usbd_bus *bus;
+ usb_dma_t *dma;
+{
+ usb_freemem(&((struct uhci_softc *)bus)->sc_bus, dma);
+}
+
+usbd_xfer_handle
+uhci_allocx(bus)
+ struct usbd_bus *bus;
+{
+ struct uhci_softc *sc = (struct uhci_softc *)bus;
+ usbd_xfer_handle xfer;
+
+ xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers);
+ if (xfer != NULL)
+ SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, xfer, next);
+ else
+ xfer = malloc(sizeof(*xfer), M_USB, M_NOWAIT);
+ if (xfer != NULL)
+ memset(xfer, 0, sizeof *xfer);
+ return (xfer);
+}
+
+void
+uhci_freex(bus, xfer)
+ struct usbd_bus *bus;
+ usbd_xfer_handle xfer;
+{
+ struct uhci_softc *sc = (struct uhci_softc *)bus;
+
+ SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next);
+}
+
+/*
+ * Shut down the controller when the system is going down.
+ */
+void
+uhci_shutdown(v)
+ 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 intterupt context. This is all right since we
+ * are almost suspended anyway.
+ */
+void
+uhci_power(why, v)
+ int why;
+ void *v;
+{
+ uhci_softc_t *sc = v;
+ int cmd;
+ int s;
+
+ s = splusb();
+ 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 UHCI_DEBUG
+ if (uhcidebug > 2)
+ uhci_dumpregs(sc);
+#endif
+ if (sc->sc_has_timo != NULL)
+ usb_untimeout(uhci_timo, sc->sc_has_timo,
+ sc->sc_has_timo->timo_handle);
+ sc->sc_bus.use_polling++;
+ uhci_run(sc, 0); /* stop the controller */
+ 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 {
+ /*
+ * XXX We should really do much more here in case the
+ * controller registers have been lost and BIOS has
+ * not restored them.
+ */
+#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;
+ if (cmd & UHCI_CMD_RS)
+ uhci_run(sc, 0); /* in case BIOS has started it */
+ 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 */
+ 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_has_timo != NULL)
+ usb_timeout(uhci_timo, sc->sc_has_timo,
+ sc->sc_ival, sc->sc_has_timo->timo_handle);
+#ifdef UHCI_DEBUG
+ if (uhcidebug > 2)
+ uhci_dumpregs(sc);
+#endif
+ }
+ splx(s);
+}
+
+#ifdef UHCI_DEBUG
+Static void
+uhci_dumpregs(sc)
+ 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",
+ USBDEVNAME(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(p)
+ uhci_soft_td_t *p;
+{
+ DPRINTFN(-1,("TD(%p) at %08lx = link=0x%08lx status=0x%08lx "
+ "token=0x%08lx buffer=0x%08lx\n",
+ p, (long)p->physaddr,
+ (long)LE(p->td.td_link),
+ (long)LE(p->td.td_status),
+ (long)LE(p->td.td_token),
+ (long)LE(p->td.td_buffer)));
+ DPRINTFN(-1,(" %b %b,errcnt=%d,actlen=%d pid=%02x,addr=%d,endpt=%d,"
+ "D=%d,maxlen=%d\n",
+ (int)LE(p->td.td_link),
+ "\20\1T\2Q\3VF",
+ (int)LE(p->td.td_status),
+ "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27"
+ "STALLED\30ACTIVE\31IOC\32ISO\33LS\36SPD",
+ UHCI_TD_GET_ERRCNT(LE(p->td.td_status)),
+ UHCI_TD_GET_ACTLEN(LE(p->td.td_status)),
+ UHCI_TD_GET_PID(LE(p->td.td_token)),
+ UHCI_TD_GET_DEVADDR(LE(p->td.td_token)),
+ UHCI_TD_GET_ENDPT(LE(p->td.td_token)),
+ UHCI_TD_GET_DT(LE(p->td.td_token)),
+ UHCI_TD_GET_MAXLEN(LE(p->td.td_token))));
+}
+
+void
+uhci_dump_qh(sqh)
+ uhci_soft_qh_t *sqh;
+{
+ DPRINTFN(-1,("QH(%p) at %08x: hlink=%08x elink=%08x\n", sqh,
+ (int)sqh->physaddr, LE(sqh->qh.qh_hlink), LE(sqh->qh.qh_elink)));
+}
+
+
+#if 0
+void
+uhci_dump()
+{
+ uhci_softc_t *sc = uhci;
+
+ 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_ctl_start->qh.hlink);
+}
+#endif
+
+
+void
+uhci_dump_qhs(sqh)
+ 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 && !(sqh->qh.qh_hlink & UHCI_PTR_T))
+ uhci_dump_qhs(sqh->hlink);
+ else
+ DPRINTF(("No QH\n"));
+
+ if (sqh->elink != NULL && !(sqh->qh.qh_elink & UHCI_PTR_T))
+ uhci_dump_tds(sqh->elink);
+ else
+ DPRINTF(("No TD\n"));
+}
+
+void
+uhci_dump_tds(std)
+ 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 (td->td.td_link & UHCI_PTR_T ||
+ td->td.td_link == 0)
+ break;
+ }
+}
+#endif
+
+/*
+ * This routine is executed periodically and simulates interrupts
+ * from the root controller interrupt pipe for port status change.
+ */
+void
+uhci_timo(addr)
+ void *addr;
+{
+ usbd_xfer_handle xfer = addr;
+ usbd_pipe_handle pipe = xfer->pipe;
+ uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus;
+ int s;
+ u_char *p;
+
+ DPRINTFN(20, ("uhci_timo\n"));
+
+ usb_timeout(uhci_timo, xfer, sc->sc_ival, xfer->timo_handle);
+
+ p = KERNADDR(&xfer->dmabuf, 0);
+ p[0] = 0;
+ if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC))
+ p[0] |= 1<<1;
+ if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC))
+ p[0] |= 1<<2;
+ if (p[0] == 0)
+ /* No change, try again in a while */
+ return;
+
+ xfer->actlen = 1;
+ xfer->status = USBD_NORMAL_COMPLETION;
+ s = splusb();
+ xfer->hcpriv = 0;
+ xfer->device->bus->intr_context++;
+ usb_transfer_complete(xfer);
+ xfer->device->bus->intr_context--;
+ splx(s);
+}
+
+void
+uhci_root_intr_done(xfer)
+ usbd_xfer_handle xfer;
+{
+}
+
+void
+uhci_lock_frames(sc)
+ uhci_softc_t *sc;
+{
+ int s = splusb();
+
+ while (sc->sc_vflock & UHCI_HAS_LOCK) {
+ sc->sc_vflock |= UHCI_WANT_LOCK;
+ tsleep(&sc->sc_vflock, PRIBIO, "uhcqhl", 0);
+ }
+ sc->sc_vflock = UHCI_HAS_LOCK;
+ splx(s);
+}
+
+void
+uhci_unlock_frames(sc)
+ uhci_softc_t *sc;
+{
+ int s = splusb();
+
+ sc->sc_vflock &= ~UHCI_HAS_LOCK;
+ if (sc->sc_vflock & UHCI_WANT_LOCK)
+ wakeup(&sc->sc_vflock);
+ splx(s);
+}
+
+/*
+ * Allocate an interrupt information struct. A free list is kept
+ * for fast allocation.
+ */
+uhci_intr_info_t *
+uhci_alloc_intr_info(sc)
+ uhci_softc_t *sc;
+{
+ uhci_intr_info_t *ii;
+
+ ii = LIST_FIRST(&uhci_ii_free);
+ if (ii)
+ LIST_REMOVE(ii, list);
+ else {
+ ii = malloc(sizeof(uhci_intr_info_t), M_USBHC, M_NOWAIT);
+ }
+ ii->sc = sc;
+#if defined(__FreeBSD__)
+ callout_handle_init(&ii->timeout_handle);
+#endif
+
+ return ii;
+}
+
+void
+uhci_free_intr_info(ii)
+ uhci_intr_info_t *ii;
+{
+ LIST_INSERT_HEAD(&uhci_ii_free, ii, list); /* and put on free list */
+}
+
+/* Add control QH, called at splusb(). */
+void
+uhci_add_ctrl(sc, sqh)
+ 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_ctl_end;
+ sqh->hlink = eqh->hlink;
+ sqh->qh.qh_hlink = eqh->qh.qh_hlink;
+ eqh->hlink = sqh;
+ eqh->qh.qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q);
+ sc->sc_ctl_end = sqh;
+}
+
+/* Remove control QH, called at splusb(). */
+void
+uhci_remove_ctrl(sc, sqh)
+ uhci_softc_t *sc;
+ uhci_soft_qh_t *sqh;
+{
+ uhci_soft_qh_t *pqh;
+
+ SPLUSBCHECK;
+
+ DPRINTFN(10, ("uhci_remove_ctrl: sqh=%p\n", sqh));
+ for (pqh = sc->sc_ctl_start; pqh->hlink != sqh; pqh=pqh->hlink)
+#if defined(DIAGNOSTIC) || defined(UHCI_DEBUG)
+ if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) {
+ printf("uhci_remove_ctrl: QH not found\n");
+ return;
+ }
+#else
+ ;
+#endif
+ pqh->hlink = sqh->hlink;
+ pqh->qh.qh_hlink = sqh->qh.qh_hlink;
+ if (sc->sc_ctl_end == sqh)
+ sc->sc_ctl_end = pqh;
+}
+
+/* Add bulk QH, called at splusb(). */
+void
+uhci_add_bulk(sc, sqh)
+ 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 = LE(sqh->physaddr | UHCI_PTR_Q);
+ sc->sc_bulk_end = sqh;
+}
+
+/* Remove bulk QH, called at splusb(). */
+void
+uhci_remove_bulk(sc, sqh)
+ uhci_softc_t *sc;
+ uhci_soft_qh_t *sqh;
+{
+ uhci_soft_qh_t *pqh;
+
+ SPLUSBCHECK;
+
+ DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh));
+ for (pqh = sc->sc_bulk_start; pqh->hlink != sqh; pqh = pqh->hlink)
+#if defined(DIAGNOSTIC) || defined(UHCI_DEBUG)
+ if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) {
+ printf("uhci_remove_bulk: QH not found\n");
+ return;
+ }
+#else
+ ;
+#endif
+ pqh->hlink = sqh->hlink;
+ pqh->qh.qh_hlink = sqh->qh.qh_hlink;
+ if (sc->sc_bulk_end == sqh)
+ sc->sc_bulk_end = pqh;
+}
+
+int
+uhci_intr(arg)
+ void *arg;
+{
+ uhci_softc_t *sc = arg;
+ int status;
+ int ack;
+ uhci_intr_info_t *ii;
+
+ /*
+ * 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 UHCI_DEBUG
+ if (uhcidebug > 15) {
+ DPRINTF(("%s: uhci_intr\n", USBDEVNAME(sc->sc_bus.bdev)));
+ uhci_dumpregs(sc);
+ }
+#endif
+
+ status = UREAD2(sc, UHCI_STS);
+ 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
+
+ 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;
+ printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev));
+ }
+ if (status & UHCI_STS_HSE) {
+ ack |= UHCI_STS_HSE;
+ printf("%s: host controller process error\n",
+ USBDEVNAME(sc->sc_bus.bdev));
+ }
+ if (status & UHCI_STS_HCPE) {
+ ack |= UHCI_STS_HCPE;
+ printf("%s: host system error\n", USBDEVNAME(sc->sc_bus.bdev));
+ }
+ if (status & UHCI_STS_HCH) {
+ /* no acknowledge needed */
+ printf("%s: host controller halted\n",
+ USBDEVNAME(sc->sc_bus.bdev));
+ }
+
+ if (ack) /* acknowledge the ints */
+ UWRITE2(sc, UHCI_STS, ack);
+ else /* nothing to acknowledge */
+ return (0);
+
+ sc->sc_bus.intr_context++;
+ sc->sc_bus.no_intrs++;
+
+ /*
+ * Interrupts on UHCI really suck. When the host controller
+ * interrupts because a transfer is completed there is no
+ * way of knowing which transfer it was. You can scan down
+ * the TDs and QHs of the previous frame to limit the search,
+ * but that assumes that the interrupt was not delayed by more
+ * than 1 ms, which may not always be true (e.g. after debug
+ * output on a slow console).
+ * We scan all interrupt descriptors to see if any have
+ * completed.
+ */
+ for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list))
+ uhci_check_intr(sc, ii);
+
+ DPRINTFN(10, ("%s: uhci_intr: exit\n", USBDEVNAME(sc->sc_bus.bdev)));
+
+ sc->sc_bus.intr_context--;
+
+ return (1);
+}
+
+/* Check for an interrupt. */
+void
+uhci_check_intr(sc, ii)
+ 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->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 a an error somewhere in the middle, or whether there was a
+ * short packet (SPD and not ACTIVE).
+ */
+ if (LE(lstd->td.td_status) & UHCI_TD_ACTIVE) {
+ DPRINTFN(15, ("uhci_check_intr: active ii=%p\n", ii));
+ for (std = ii->stdstart; std != lstd; std = std->link.std) {
+ status = LE(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(LE(std->td.td_token)))
+ goto done;
+ }
+ DPRINTFN(15, ("uhci_check_intr: ii=%p std=%p still active\n",
+ ii, ii->stdstart));
+ return;
+ }
+done:
+
+ usb_untimeout(uhci_timeout, ii, ii->timeout_handle);
+ uhci_idone(ii);
+}
+
+/* Called at splusb() */
+void
+uhci_idone(ii)
+ 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;
+
+#ifdef DIAGNOSTIC
+ {
+ int s = splhigh();
+ if (ii->isdone) {
+ splx(s);
+ printf("uhci_idone: ii=%p is done!\n", ii);
+ return;
+ }
+ ii->isdone = 1;
+ splx(s);
+ }
+#endif
+
+ if (xfer->status == USBD_CANCELLED ||
+ xfer->status == USBD_TIMEOUT) {
+ DPRINTF(("uhci_idone: aborted xfer=%p\n", xfer));
+ return;
+ }
+
+ if (xfer->nframes != 0) {
+ /* Isoc transfer, do things differently. */
+ uhci_soft_td_t **stds = upipe->u.iso.stds;
+ int i, n, nframes;
+
+ DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii));
+
+ nframes = xfer->nframes;
+ actlen = 0;
+ n = xfer->hcprivint;
+ for (i = 0; i < nframes; i++) {
+ std = stds[n];
+#ifdef UHCI_DEBUG
+ if (uhcidebug > 5) {
+ DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i));
+ uhci_dump_td(std);
+ }
+#endif
+ if (++n >= UHCI_VFRAMELIST_COUNT)
+ n = 0;
+ status = LE(std->td.td_status);
+ actlen += UHCI_TD_GET_ACTLEN(status);
+ }
+ upipe->u.iso.inuse -= nframes;
+ xfer->actlen = actlen;
+ xfer->status = USBD_NORMAL_COMPLETION;
+ xfer->hcpriv = ii;
+ usb_transfer_complete(xfer);
+ return;
+ }
+
+#ifdef UHCI_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 = LE(std->td.td_status);
+ if (nstatus & UHCI_TD_ACTIVE)
+ break;
+
+ status = nstatus;
+ if (UHCI_TD_GET_PID(LE(std->td.td_token)) != UHCI_TD_PID_SETUP)
+ actlen += UHCI_TD_GET_ACTLEN(status);
+ }
+ /* If there are left over TDs we need to update the toggle. */
+ if (std != NULL)
+ upipe->nexttoggle = UHCI_TD_GET_DT(LE(std->td.td_token));
+
+ status &= UHCI_TD_ERROR;
+ DPRINTFN(10, ("uhci_check_intr: actlen=%d, status=0x%x\n",
+ actlen, status));
+ xfer->actlen = actlen;
+ if (status != 0) {
+ DPRINTFN((status == UHCI_TD_STALLED)*10,
+ ("uhci_idone: error, addr=%d, endpt=0x%02x, "
+ "status 0x%b\n",
+ xfer->pipe->device->address,
+ xfer->pipe->endpoint->edesc->bEndpointAddress,
+ (int)status,
+ "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27"
+ "STALLED\30ACTIVE"));
+ if (status == UHCI_TD_STALLED)
+ xfer->status = USBD_STALLED;
+ else
+ xfer->status = USBD_IOERROR; /* more info XXX */
+ } else {
+ xfer->status = USBD_NORMAL_COMPLETION;
+ }
+ xfer->hcpriv = ii;
+ usb_transfer_complete(xfer);
+}
+
+/*
+ * Called when a request does not complete.
+ */
+void
+uhci_timeout(addr)
+ void *addr;
+{
+ uhci_intr_info_t *ii = addr;
+
+ DPRINTF(("uhci_timeout: ii=%p\n", ii));
+
+#ifdef UHCI_DEBUG
+ if (uhcidebug > 10)
+ uhci_dump_tds(ii->stdstart);
+#endif
+
+ ii->xfer->device->bus->intr_context++;
+ uhci_abort_xfer(ii->xfer, USBD_TIMEOUT);
+ ii->xfer->device->bus->intr_context--;
+}
+
+/*
+ * 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(sc, xfer)
+ 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_USBINT) {
+ uhci_intr(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\n");
+#endif
+ uhci_idone(ii);
+}
+
+void
+uhci_poll(bus)
+ struct usbd_bus *bus;
+{
+ uhci_softc_t *sc = (uhci_softc_t *)bus;
+
+ if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT)
+ uhci_intr(sc);
+}
+
+#if 0
+void
+uhci_reset(p)
+ void *p;
+{
+ uhci_softc_t *sc = p;
+ 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++)
+ delay(100);
+ if (n >= UHCI_RESET_TIMEOUT)
+ printf("%s: controller did not reset\n",
+ USBDEVNAME(sc->sc_bus.bdev));
+}
+#endif
+
+usbd_status
+uhci_run(sc, run)
+ uhci_softc_t *sc;
+ int run;
+{
+ int s, n, running;
+ u_int16_t cmd;
+
+ run = run != 0;
+ s = splusb();
+ 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", USBDEVNAME(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(sc)
+ 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 = (uhci_soft_td_t *)((char *)KERNADDR(&dma, offs));
+ std->physaddr = DMAADDR(&dma, offs);
+ std->link.std = sc->sc_freetds;
+ sc->sc_freetds = std;
+ }
+ }
+ std = sc->sc_freetds;
+ sc->sc_freetds = std->link.std;
+ memset(&std->td, 0, sizeof(uhci_td_t));
+ return std;
+}
+
+void
+uhci_free_std(sc, std)
+ uhci_softc_t *sc;
+ uhci_soft_td_t *std;
+{
+#ifdef DIAGNOSTIC
+#define TD_IS_FREE 0x12345678
+ if (std->td.td_token == LE(TD_IS_FREE)) {
+ printf("uhci_free_std: freeing free TD %p\n", std);
+ return;
+ }
+ std->td.td_token = LE(TD_IS_FREE);
+#endif
+ std->link.std = sc->sc_freetds;
+ sc->sc_freetds = std;
+}
+
+uhci_soft_qh_t *
+uhci_alloc_sqh(sc)
+ 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 = (uhci_soft_qh_t *)((char *)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(sc, sqh)
+ uhci_softc_t *sc;
+ uhci_soft_qh_t *sqh;
+{
+ sqh->hlink = sc->sc_freeqhs;
+ sc->sc_freeqhs = sqh;
+}
+
+#if 0
+/*
+ * Enter a list of transfers onto a control queue.
+ * Called at splusb()
+ */
+void
+uhci_enter_ctl_q(sc, sqh, ii)
+ uhci_softc_t *sc;
+ uhci_soft_qh_t *sqh;
+ uhci_intr_info_t *ii;
+{
+ DPRINTFN(5, ("uhci_enter_ctl_q: sqh=%p\n", sqh));
+
+}
+#endif
+
+void
+uhci_free_std_chain(sc, std, stdend)
+ 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(upipe, sc, len, rd, flags, dma, sp, ep)
+ struct uhci_pipe *upipe;
+ uhci_softc_t *sc;
+ int len, rd;
+ u_int16_t flags;
+ usb_dma_t *dma;
+ uhci_soft_td_t **sp, **ep;
+{
+ uhci_soft_td_t *p, *lastp;
+ uhci_physaddr_t lastlink;
+ int i, ntd, l, tog, maxp;
+ 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 ls=%d "
+ "flags=0x%x\n", addr, UE_GET_ADDR(endpt), len,
+ upipe->pipe.device->lowspeed, 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 ((flags & USBD_FORCE_SHORT_XFER) && len % maxp == 0)
+ ntd++;
+ DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd));
+ if (ntd == 0) {
+ *sp = *ep = 0;
+ DPRINTFN(-1,("uhci_alloc_std_chain: ntd=0\n"));
+ return (USBD_NORMAL_COMPLETION);
+ }
+ tog = upipe->nexttoggle;
+ if (ntd % 2 == 0)
+ tog ^= 1;
+ upipe->nexttoggle = tog ^ 1;
+ lastp = 0;
+ lastlink = UHCI_PTR_T;
+ ntd--;
+ status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE);
+ if (upipe->pipe.device->lowspeed)
+ status |= UHCI_TD_LS;
+ if (flags & USBD_SHORT_XFER_OK)
+ status |= UHCI_TD_SPD;
+ for (i = ntd; i >= 0; i--) {
+ p = uhci_alloc_std(sc);
+ if (p == NULL) {
+ uhci_free_std_chain(sc, lastp, 0);
+ return (USBD_NOMEM);
+ }
+ p->link.std = lastp;
+ if (lastlink == UHCI_PTR_T)
+ p->td.td_link = LE(lastlink);
+ else
+ p->td.td_link = LE(lastlink|UHCI_PTR_VF);
+ lastp = p;
+ lastlink = p->physaddr;
+ p->td.td_status = LE(status);
+ if (i == ntd) {
+ /* last TD */
+ l = len % maxp;
+ if (l == 0 && !(flags & USBD_FORCE_SHORT_XFER))
+ l = maxp;
+ *ep = p;
+ } else
+ l = maxp;
+ p->td.td_token =
+ LE(rd ? UHCI_TD_IN (l, endpt, addr, tog) :
+ UHCI_TD_OUT(l, endpt, addr, tog));
+ p->td.td_buffer = LE(DMAADDR(dma, i * maxp));
+ tog ^= 1;
+ }
+ *sp = lastp;
+ DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n",
+ upipe->nexttoggle));
+ return (USBD_NORMAL_COMPLETION);
+}
+
+void
+uhci_device_clear_toggle(pipe)
+ usbd_pipe_handle pipe;
+{
+ struct uhci_pipe *upipe = (struct uhci_pipe *)pipe;
+ upipe->nexttoggle = 0;
+}
+
+void
+uhci_noop(pipe)
+ usbd_pipe_handle pipe;
+{
+}
+
+usbd_status
+uhci_device_bulk_transfer(xfer)
+ 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),
+ * start first
+ */
+ return (uhci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue)));
+}
+
+usbd_status
+uhci_device_bulk_start(xfer)
+ 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 = upipe->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_transfer: xfer=%p len=%d flags=%d\n",
+ xfer, xfer->length, xfer->flags));
+
+#ifdef DIAGNOSTIC
+ if (xfer->rqflags & URQ_REQUEST)
+ panic("uhci_device_bulk_transfer: a request\n");
+#endif
+
+ len = xfer->length;
+ endpt = xfer->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->dmabuf, &data, &dataend);
+ if (err)
+ return (err);
+ dataend->td.td_status |= LE(UHCI_TD_IOC);
+
+#ifdef UHCI_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;
+#if defined(__FreeBSD__)
+ callout_handle_init(&ii->timeout_handle);
+#endif
+#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 = LE(data->physaddr);
+ sqh->intr_info = ii;
+
+ s = splusb();
+ uhci_add_bulk(sc, sqh);
+ LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list);
+
+ if (xfer->timeout && !sc->sc_bus.use_polling) {
+ usb_timeout(uhci_timeout, ii, MS_TO_TICKS(xfer->timeout),
+ ii->timeout_handle);
+ }
+ splx(s);
+
+#ifdef UHCI_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(xfer)
+ usbd_xfer_handle xfer;
+{
+ DPRINTF(("uhci_device_bulk_abort:\n"));
+ uhci_abort_xfer(xfer, USBD_CANCELLED);
+}
+
+void
+uhci_abort_xfer(xfer, status)
+ usbd_xfer_handle xfer;
+ usbd_status status;
+{
+ struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe;
+ uhci_intr_info_t *ii = upipe->iinfo;
+ uhci_soft_td_t *std;
+
+ DPRINTFN(1,("uhci_abort_xfer: xfer=%p, status=%d\n", xfer, status));
+
+ /* Make interrupt routine ignore it, */
+ xfer->status = status;
+
+ /* don't timeout, */
+ usb_untimeout(uhci_timeout, ii, ii->timeout_handle);
+
+ /* make hardware ignore it, */
+ for (std = ii->stdstart; std != 0; std = std->link.std)
+ std->td.td_status &= LE(~(UHCI_TD_ACTIVE | UHCI_TD_IOC));
+
+ xfer->hcpriv = ii;
+
+#if 1
+ /* Make sure hardware has completed. */
+ if (xfer->device->bus->intr_context) {
+ /* We have no process context, so we can't use tsleep(). */
+ timeout(uhci_abort_xfer_end, xfer, hz / USB_FRAMES_PER_SECOND);
+ } else {
+#if defined(DIAGNOSTIC) && defined(__i386__) && defined(__FreeBSD__)
+ KASSERT(intr_nesting_level == 0,
+ ("ohci_abort_req in interrupt context"));
+#endif
+ usb_delay_ms(xfer->pipe->device->bus, 1);
+ /* and call final part of interrupt handler. */
+ uhci_abort_xfer_end(xfer);
+ }
+#else
+ delay(1000);
+ uhci_abort_xfer_end(xfer);
+#endif
+}
+
+void
+uhci_abort_xfer_end(v)
+ void *v;
+{
+ usbd_xfer_handle xfer = v;
+ int s;
+
+ s = splusb();
+ usb_transfer_complete(xfer);
+ splx(s);
+}
+
+/* Close a device bulk pipe. */
+void
+uhci_device_bulk_close(pipe)
+ 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);
+ uhci_free_intr_info(upipe->iinfo);
+ /* XXX free other resources */
+}
+
+usbd_status
+uhci_device_ctrl_transfer(xfer)
+ 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),
+ * start first
+ */
+ return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue)));
+}
+
+usbd_status
+uhci_device_ctrl_start(xfer)
+ usbd_xfer_handle xfer;
+{
+ uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus;
+ usbd_status err;
+
+#ifdef DIAGNOSTIC
+ if (!(xfer->rqflags & URQ_REQUEST))
+ panic("uhci_device_ctrl_transfer: not a request\n");
+#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(xfer)
+ 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),
+ * start first
+ */
+ return (uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue)));
+}
+
+usbd_status
+uhci_device_intr_start(xfer)
+ 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 = upipe->iinfo;
+ uhci_soft_td_t *data, *dataend;
+ uhci_soft_qh_t *sqh;
+ usbd_status err;
+ int i, s;
+
+ 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\n");
+#endif
+
+ err = uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags,
+ &xfer->dmabuf, &data, &dataend);
+ if (err)
+ return (err);
+ dataend->td.td_status |= LE(UHCI_TD_IOC);
+
+#ifdef UHCI_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;
+#if defined(__FreeBSD__)
+ callout_handle_init(&ii->timeout_handle);
+#endif
+#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 = LE(data->physaddr);
+ }
+ splx(s);
+
+#ifdef UHCI_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(xfer)
+ 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(pipe)
+ usbd_pipe_handle pipe;
+{
+ struct uhci_pipe *upipe = (struct uhci_pipe *)pipe;
+
+ uhci_free_intr_info(upipe->iinfo);
+ /* XXX free other resources? */
+}
+
+/* Abort a device interrupt request. */
+void
+uhci_device_intr_abort(xfer)
+ 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 = 0;
+ }
+ uhci_abort_xfer(xfer, USBD_CANCELLED);
+}
+
+/* Close a device interrupt pipe. */
+void
+uhci_device_intr_close(pipe)
+ usbd_pipe_handle pipe;
+{
+ struct uhci_pipe *upipe = (struct uhci_pipe *)pipe;
+ uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus;
+ int i, s, npoll;
+
+ upipe->iinfo->stdstart = 0; /* inactive */
+
+ /* Unlink descriptors from controller data structures. */
+ npoll = upipe->u.intr.npoll;
+ uhci_lock_frames(sc);
+ for (i = 0; i < npoll; i++)
+ uhci_remove_intr(sc, upipe->u.intr.qhs[i]->pos,
+ upipe->u.intr.qhs[i]);
+ uhci_unlock_frames(sc);
+
+ /*
+ * 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);
+
+ s = splusb();
+ LIST_REMOVE(upipe->iinfo, list); /* remove from active list */
+ splx(s);
+ uhci_free_intr_info(upipe->iinfo);
+
+ /* XXX free other resources */
+}
+
+usbd_status
+uhci_device_request(xfer)
+ 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 = upipe->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->lowspeed ? 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->dmabuf, &data, &dataend);
+ if (err)
+ return (err);
+ next = data;
+ dataend->link.std = stat;
+ dataend->td.td_link = LE(stat->physaddr | UHCI_PTR_VF);
+ } 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 = LE(next->physaddr | UHCI_PTR_VF);
+ setup->td.td_status = LE(UHCI_TD_SET_ERRCNT(3) | ls | UHCI_TD_ACTIVE);
+ setup->td.td_token = LE(UHCI_TD_SETUP(sizeof *req, endpt, addr));
+ setup->td.td_buffer = LE(DMAADDR(&upipe->u.ctl.reqdma, 0));
+
+ stat->link.std = 0;
+ stat->td.td_link = LE(UHCI_PTR_T);
+ stat->td.td_status = LE(UHCI_TD_SET_ERRCNT(3) | ls |
+ UHCI_TD_ACTIVE | UHCI_TD_IOC);
+ stat->td.td_token =
+ LE(isread ? UHCI_TD_OUT(0, endpt, addr, 1) :
+ UHCI_TD_IN (0, endpt, addr, 1));
+ stat->td.td_buffer = LE(0);
+
+#ifdef UHCI_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;
+#if defined(__FreeBSD__)
+ callout_handle_init(&ii->timeout_handle);
+#endif
+#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 = LE(setup->physaddr);
+ sqh->intr_info = ii;
+
+ s = splusb();
+ uhci_add_ctrl(sc, sqh);
+ LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list);
+#ifdef UHCI_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_Q) == 0;
+ std = std->link.std) {
+ link = LE(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) {
+ usb_timeout(uhci_timeout, ii,
+ MS_TO_TICKS(xfer->timeout), ii->timeout_handle);
+ }
+ splx(s);
+
+ return (USBD_NORMAL_COMPLETION);
+}
+
+usbd_status
+uhci_device_isoc_transfer(xfer)
+ 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 put on interrupt list if the pipe wasn't running */
+ if (!err)
+ uhci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue));
+
+ return (err);
+}
+
+void
+uhci_device_isoc_enter(xfer)
+ 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;
+ u_int32_t buf, len, status;
+ int s, i, next, nframes;
+
+ DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p "
+ "nframes=%d\n",
+ iso->inuse, iso->next, xfer, xfer->nframes));
+
+ if (xfer->status == USBD_IN_PROGRESS) {
+ /* This request has already been entered into the frame list */
+ /* 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;
+ xfer->hcprivint = next;
+
+ buf = DMAADDR(&xfer->dmabuf, 0);
+ status = LE(UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) |
+ UHCI_TD_ACTIVE |
+ UHCI_TD_IOS));
+ nframes = xfer->nframes;
+ s = splusb();
+ for (i = 0; i < nframes; i++) {
+ std = iso->stds[next];
+ if (++next >= UHCI_VFRAMELIST_COUNT)
+ next = 0;
+ len = xfer->frlengths[i];
+ std->td.td_buffer = LE(buf);
+ if (i == nframes - 1)
+ status |= LE(UHCI_TD_IOC);
+ std->td.td_status = status;
+ std->td.td_token &= LE(~UHCI_TD_MAXLEN_MASK);
+ std->td.td_token |= LE(UHCI_TD_SET_MAXLEN(len));
+#ifdef UHCI_DEBUG
+ if (uhcidebug > 5) {
+ DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i));
+ uhci_dump_td(std);
+ }
+#endif
+ buf += len;
+ }
+ iso->next = next;
+ iso->inuse += xfer->nframes;
+
+ splx(s);
+}
+
+usbd_status
+uhci_device_isoc_start(xfer)
+ 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 = upipe->iinfo;
+ uhci_soft_td_t *end;
+ int s, i;
+
+#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 = xfer->hcprivint + xfer->nframes;
+ if (i >= UHCI_VFRAMELIST_COUNT)
+ i -= UHCI_VFRAMELIST_COUNT;
+ end = upipe->u.iso.stds[i];
+
+ s = splusb();
+
+ /* Set up interrupt info. */
+ ii->xfer = xfer;
+ ii->stdstart = end;
+ ii->stdend = end;
+#if defined(__FreeBSD__)
+ callout_handle_init(&ii->timeout_handle);
+#endif
+#ifdef DIAGNOSTIC
+ if (!ii->isdone) {
+ printf("uhci_device_isoc_start: not done, ii=%p\n", ii);
+ }
+ ii->isdone = 0;
+#endif
+ LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list);
+
+ splx(s);
+
+ return (USBD_IN_PROGRESS);
+}
+
+void
+uhci_device_isoc_abort(xfer)
+ usbd_xfer_handle xfer;
+{
+ struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe;
+ uhci_intr_info_t *ii = upipe->iinfo;
+ uhci_soft_td_t **stds = upipe->u.iso.stds;
+ uhci_soft_td_t *std;
+ int i, n, nframes;
+
+ /* Make interrupt routine ignore it, */
+ xfer->status = USBD_CANCELLED;
+
+ /* make hardware ignore it, */
+ nframes = xfer->nframes;
+ n = xfer->hcprivint;
+ for (i = 0; i < nframes; i++) {
+ std = stds[n];
+ std->td.td_status &= LE(~(UHCI_TD_ACTIVE | UHCI_TD_IOC));
+ if (++n >= UHCI_VFRAMELIST_COUNT)
+ n = 0;
+ }
+
+ xfer->hcpriv = ii;
+
+ /* make sure hardware has completed, */
+ if (xfer->device->bus->intr_context) {
+ /* We have no process context, so we can't use tsleep(). */
+ timeout(uhci_abort_xfer_end, xfer, hz / USB_FRAMES_PER_SECOND);
+ } else {
+ usb_delay_ms(xfer->pipe->device->bus, 1);
+ /* and call final part of interrupt handler. */
+ uhci_abort_xfer_end(xfer);
+ }
+}
+
+void
+uhci_device_isoc_close(pipe)
+ 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;
+
+ /*
+ * 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 &= LE(~UHCI_TD_ACTIVE);
+ usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */
+
+ uhci_lock_frames(sc);
+ 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);
+ uhci_unlock_frames(sc);
+ return;
+ }
+ vstd->link = std->link;
+ vstd->td.td_link = std->td.td_link;
+ uhci_free_std(sc, std);
+ }
+ uhci_unlock_frames(sc);
+
+ free(iso->stds, M_USBHC);
+}
+
+usbd_status
+uhci_setup_isoc(pipe)
+ 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;
+
+ iso = &upipe->u.iso;
+ iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *),
+ M_USBHC, M_WAITOK);
+
+ token = LE(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 = LE(UHCI_TD_IOS); /* iso, inactive */
+ std->td.td_token = token;
+ iso->stds[i] = std;
+ }
+
+ /* Insert TDs into schedule. */
+ uhci_lock_frames(sc);
+ 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 = LE(std->physaddr);
+ }
+ uhci_unlock_frames(sc);
+
+ 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(xfer)
+ usbd_xfer_handle xfer;
+{
+ uhci_intr_info_t *ii = xfer->hcpriv;
+
+ DPRINTFN(4, ("uhci_isoc_done: length=%d\n", xfer->actlen));
+
+ /* Turn off the interrupt since it is active even if the TD is not. */
+ ii->stdend->td.td_status &= LE(~UHCI_TD_IOC);
+
+ LIST_REMOVE(ii, list); /* remove from active list */
+}
+
+void
+uhci_device_intr_done(xfer)
+ usbd_xfer_handle xfer;
+{
+ uhci_intr_info_t *ii = xfer->hcpriv;
+ 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_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 = 0;
+ sqh->qh.qh_elink = LE(UHCI_PTR_T);
+ }
+ uhci_free_std_chain(sc, ii->stdstart, 0);
+
+ /* XXX Wasteful. */
+ if (xfer->pipe->repeat) {
+ uhci_soft_td_t *data, *dataend;
+
+ /* This alloc cannot fail since we freed the chain above. */
+ uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags,
+ &xfer->dmabuf, &data, &dataend);
+ dataend->td.td_status |= LE(UHCI_TD_IOC);
+
+#ifdef UHCI_DEBUG
+ if (uhcidebug > 10) {
+ DPRINTF(("uhci_device_intr_done: data(1)\n"));
+ uhci_dump_tds(data);
+ uhci_dump_qh(upipe->u.intr.qhs[0]);
+ }
+#endif
+
+ ii->stdstart = data;
+ ii->stdend = dataend;
+#if defined(__FreeBSD__)
+ callout_handle_init(&ii->timeout_handle);
+#endif
+#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 = LE(data->physaddr);
+ }
+ } else {
+ ii->stdstart = 0; /* mark as inactive */
+ }
+}
+
+/* Deallocate request data structures */
+void
+uhci_device_ctrl_done(xfer)
+ usbd_xfer_handle xfer;
+{
+ uhci_intr_info_t *ii = xfer->hcpriv;
+ uhci_softc_t *sc = ii->sc;
+ struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe;
+
+#ifdef DIAGNOSTIC
+ if (!(xfer->rqflags & URQ_REQUEST))
+ panic("uhci_ctrl_done: not a request\n");
+#endif
+
+ LIST_REMOVE(ii, list); /* remove from active list */
+
+ uhci_remove_ctrl(sc, upipe->u.ctl.sqh);
+
+ if (upipe->u.ctl.length != 0)
+ uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend);
+
+ DPRINTFN(5, ("uhci_ctrl_done: length=%d\n", xfer->actlen));
+}
+
+/* Deallocate request data structures */
+void
+uhci_device_bulk_done(xfer)
+ usbd_xfer_handle xfer;
+{
+ uhci_intr_info_t *ii = xfer->hcpriv;
+ uhci_softc_t *sc = ii->sc;
+ struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe;
+
+ LIST_REMOVE(ii, list); /* remove from active list */
+
+ uhci_remove_bulk(sc, upipe->u.bulk.sqh);
+
+ uhci_free_std_chain(sc, ii->stdstart, 0);
+
+ DPRINTFN(5, ("uhci_bulk_done: length=%d\n", xfer->actlen));
+}
+
+/* Add interrupt QH, called with vflock. */
+void
+uhci_add_intr(sc, n, sqh)
+ uhci_softc_t *sc;
+ int n;
+ uhci_soft_qh_t *sqh;
+{
+ struct uhci_vframe *vf = &sc->sc_vframes[n];
+ uhci_soft_qh_t *eqh;
+
+ DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", n, sqh));
+ eqh = vf->eqh;
+ sqh->hlink = eqh->hlink;
+ sqh->qh.qh_hlink = eqh->qh.qh_hlink;
+ eqh->hlink = sqh;
+ eqh->qh.qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q);
+ vf->eqh = sqh;
+ vf->bandwidth++;
+}
+
+/* Remove interrupt QH, called with vflock. */
+void
+uhci_remove_intr(sc, n, sqh)
+ uhci_softc_t *sc;
+ int n;
+ uhci_soft_qh_t *sqh;
+{
+ struct uhci_vframe *vf = &sc->sc_vframes[n];
+ uhci_soft_qh_t *pqh;
+
+ DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", n, sqh));
+
+ for (pqh = vf->hqh; pqh->hlink != sqh; pqh = pqh->hlink)
+#if defined(DIAGNOSTIC) || defined(UHCI_DEBUG)
+ if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) {
+ DPRINTF(("uhci_remove_intr: QH not found\n"));
+ return;
+ }
+#else
+ ;
+#endif
+ pqh->hlink = sqh->hlink;
+ pqh->qh.qh_hlink = sqh->qh.qh_hlink;
+ if (vf->eqh == sqh)
+ vf->eqh = pqh;
+ vf->bandwidth--;
+}
+
+usbd_status
+uhci_device_setintr(sc, upipe, ival)
+ 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_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_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_setintr: bw=%d offs=%d\n", bestbw, bestoffs));
+
+ upipe->iinfo->stdstart = 0;
+ for(i = 0; i < npoll; i++) {
+ upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc);
+ sqh->elink = 0;
+ sqh->qh.qh_elink = LE(UHCI_PTR_T);
+ sqh->pos = MOD(i * ival + bestoffs);
+ sqh->intr_info = upipe->iinfo;
+ }
+#undef MOD
+
+ s = splusb();
+ LIST_INSERT_HEAD(&sc->sc_intrhead, upipe->iinfo, list);
+ splx(s);
+
+ uhci_lock_frames(sc);
+ /* Enter QHs into the controller data structures. */
+ for(i = 0; i < npoll; i++)
+ uhci_add_intr(sc, upipe->u.intr.qhs[i]->pos,
+ upipe->u.intr.qhs[i]);
+ uhci_unlock_frames(sc);
+
+ DPRINTFN(5, ("uhci_setintr: returns %p\n", upipe));
+ return (USBD_NORMAL_COMPLETION);
+}
+
+/* Open a new pipe. */
+usbd_status
+uhci_open(pipe)
+ 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));
+ 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 {
+ upipe->iinfo = uhci_alloc_intr_info(sc);
+ if (upipe->iinfo == 0)
+ return (USBD_NOMEM);
+ 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:
+ uhci_free_intr_info(upipe->iinfo);
+ 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 */
+ UCLASS_HUB, /* class */
+ USUBCLASS_HUB, /* subclass */
+ 0, /* 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,
+ UCLASS_HUB,
+ USUBCLASS_HUB,
+ 0,
+ 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(p, l, s)
+ usb_string_descriptor_t *p;
+ int l;
+ char *s;
+{
+ int i;
+
+ if (l == 0)
+ return (0);
+ p->bLength = 2 * strlen(s) + 2;
+ if (l == 1)
+ return (1);
+ p->bDescriptorType = UDESC_STRING;
+ l -= 2;
+ for (i = 0; s[i] && l > 1; i++, l -= 2)
+ USETW2(p->bString[i], 0, s[i]);
+ return (2*i+2);
+}
+
+/*
+ * Simulate a hardware hub by handling all the necessary requests.
+ */
+usbd_status
+uhci_root_ctrl_transfer(xfer)
+ 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),
+ * start first
+ */
+ return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue)));
+}
+
+usbd_status
+uhci_root_ctrl_start(xfer)
+ 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;
+
+#ifdef DIAGNOSTIC
+ if (!(xfer->rqflags & URQ_REQUEST))
+ panic("uhci_root_ctrl_transfer: not a request\n");
+#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 = KERNADDR(&xfer->dmabuf, 0);
+
+#define C(x,y) ((x) | ((y) << 8))
+ switch(C(req->bRequest, req->bmRequestType)) {
+ case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE):
+ case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE):
+ case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT):
+ /*
+ * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops
+ * for the integrated root hub.
+ */
+ break;
+ case C(UR_GET_CONFIG, UT_READ_DEVICE):
+ if (len > 0) {
+ *(u_int8_t *)buf = sc->sc_conf;
+ totlen = 1;
+ }
+ break;
+ case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE):
+ DPRINTFN(2,("uhci_root_ctrl_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 = UREAD2(sc, port);
+ UWRITE2(sc, port, x & ~UHCI_PORTSC_PE);
+ break;
+ case UHF_PORT_SUSPEND:
+ x = UREAD2(sc, port);
+ UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP);
+ break;
+ case UHF_PORT_RESET:
+ x = UREAD2(sc, port);
+ UWRITE2(sc, port, x & ~UHCI_PORTSC_PR);
+ break;
+ case UHF_C_PORT_CONNECTION:
+ x = UREAD2(sc, port);
+ UWRITE2(sc, port, x | UHCI_PORTSC_CSC);
+ break;
+ case UHF_C_PORT_ENABLE:
+ x = UREAD2(sc, port);
+ UWRITE2(sc, port, x | UHCI_PORTSC_POEDC);
+ break;
+ case UHF_C_PORT_OVER_CURRENT:
+ x = 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 != 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 = UREAD2(sc, port);
+ UWRITE2(sc, port, x | UHCI_PORTSC_PE);
+ break;
+ case UHF_PORT_SUSPEND:
+ x = UREAD2(sc, port);
+ UWRITE2(sc, port, x | UHCI_PORTSC_SUSP);
+ break;
+ case UHF_PORT_RESET:
+ x = UREAD2(sc, port);
+ UWRITE2(sc, port, x | UHCI_PORTSC_PR);
+ usb_delay_ms(&sc->sc_bus, 10);
+ UWRITE2(sc, port, x & ~UHCI_PORTSC_PR);
+ delay(100);
+ x = UREAD2(sc, port);
+ UWRITE2(sc, port, x | UHCI_PORTSC_PE);
+ delay(100);
+ DPRINTFN(3,("uhci port %d reset, status = 0x%04x\n",
+ index, UREAD2(sc, port)));
+ sc->sc_isreset = 1;
+ break;
+ 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_POWER:
+ 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;
+ xfer->hcpriv = 0;
+ s = splusb();
+ usb_transfer_complete(xfer);
+ splx(s);
+ return (USBD_IN_PROGRESS);
+}
+
+/* Abort a root control request. */
+void
+uhci_root_ctrl_abort(xfer)
+ usbd_xfer_handle xfer;
+{
+ /* Nothing to do, all transfers are synchronous. */
+}
+
+/* Close the root pipe. */
+void
+uhci_root_ctrl_close(pipe)
+ usbd_pipe_handle pipe;
+{
+ DPRINTF(("uhci_root_ctrl_close\n"));
+}
+
+/* Abort a root interrupt request. */
+void
+uhci_root_intr_abort(xfer)
+ usbd_xfer_handle xfer;
+{
+ uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus;
+
+ usb_untimeout(uhci_timo, xfer, xfer->timo_handle);
+ sc->sc_has_timo = NULL;
+
+ if (xfer->pipe->intrxfer == xfer) {
+ DPRINTF(("uhci_root_intr_abort: remove\n"));
+ xfer->pipe->intrxfer = 0;
+ }
+ xfer->status = USBD_CANCELLED;
+ usb_transfer_complete(xfer);
+}
+
+usbd_status
+uhci_root_intr_transfer(xfer)
+ 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),
+ * start first
+ */
+ return (uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue)));
+}
+
+/* Start a transfer on the root interrupt pipe */
+usbd_status
+uhci_root_intr_start(xfer)
+ 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_transfer: xfer=%p len=%d flags=%d\n",
+ xfer, xfer->length, xfer->flags));
+
+ sc->sc_ival = MS_TO_TICKS(xfer->pipe->endpoint->edesc->bInterval);
+ usb_timeout(uhci_timo, xfer, sc->sc_ival, xfer->timo_handle);
+ sc->sc_has_timo = xfer;
+ return (USBD_IN_PROGRESS);
+}
+
+/* Close the root interrupt pipe. */
+void
+uhci_root_intr_close(pipe)
+ usbd_pipe_handle pipe;
+{
+ uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus;
+
+ usb_untimeout(uhci_timo, pipe->intrxfer, pipe->intrxfer->timo_handle);
+ sc->sc_has_timo = NULL;
+ DPRINTF(("uhci_root_intr_close\n"));
+}
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