57ceda5d84
ohci.c (1.147), author: mycroft Failure to properly mask off UE_DIR_IN from the endpoint address was causing OHCI_ED_FORMAT_ISO and EHCI_QH_HRECL to get set spuriously, causing rather interesting lossage. Suddenly I get MUCH better performance with ehci... ohci.c (1.148), author: mycroft Adjust a couple of comments to make it clear WTF is going on. Obtained from: NetBSD
3574 lines
90 KiB
C
3574 lines
90 KiB
C
/* $NetBSD: ohci.c,v 1.138 2003/02/08 03:32:50 ichiro Exp $ */
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/* Also, already ported:
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* $NetBSD: ohci.c,v 1.140 2003/05/13 04:42:00 gson Exp $
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* $NetBSD: ohci.c,v 1.141 2003/09/10 20:08:29 mycroft Exp $
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* $NetBSD: ohci.c,v 1.142 2003/10/11 03:04:26 toshii Exp $
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* $NetBSD: ohci.c,v 1.143 2003/10/18 04:50:35 simonb Exp $
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* $NetBSD: ohci.c,v 1.144 2003/11/23 19:18:06 augustss Exp $
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* $NetBSD: ohci.c,v 1.145 2003/11/23 19:20:25 augustss Exp $
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* $NetBSD: ohci.c,v 1.146 2003/12/29 08:17:10 toshii Exp $
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* $NetBSD: ohci.c,v 1.147 2004/06/22 07:20:35 mycroft Exp $
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* $NetBSD: ohci.c,v 1.148 2004/06/22 18:27:46 mycroft Exp $
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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/*
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* Copyright (c) 1998 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Lennart Augustsson (lennart@augustsson.net) at
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* Carlstedt Research & Technology.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* USB Open Host Controller driver.
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*
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* OHCI spec: http://www.compaq.com/productinfo/development/openhci.html
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* USB spec: http://www.usb.org/developers/docs/usbspec.zip
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/malloc.h>
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#include <sys/kernel.h>
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#if defined(__NetBSD__) || defined(__OpenBSD__)
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#include <sys/device.h>
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#include <sys/select.h>
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#elif defined(__FreeBSD__)
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#include <sys/endian.h>
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#include <sys/module.h>
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#include <sys/bus.h>
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#include <machine/bus_pio.h>
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#include <machine/bus_memio.h>
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#if defined(DIAGNOSTIC) && defined(__i386__) && defined(__FreeBSD__)
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#include <machine/cpu.h>
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#endif
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#endif
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#include <sys/proc.h>
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#include <sys/queue.h>
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#include <sys/sysctl.h>
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#include <machine/bus.h>
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#include <machine/endian.h>
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#include <dev/usb/usb.h>
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#include <dev/usb/usbdi.h>
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#include <dev/usb/usbdivar.h>
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#include <dev/usb/usb_mem.h>
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#include <dev/usb/usb_quirks.h>
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#include <dev/usb/ohcireg.h>
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#include <dev/usb/ohcivar.h>
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#if defined(__FreeBSD__)
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#include <machine/clock.h>
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#define delay(d) DELAY(d)
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#endif
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#if defined(__OpenBSD__)
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struct cfdriver ohci_cd = {
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NULL, "ohci", DV_DULL
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};
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#endif
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#ifdef USB_DEBUG
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#define DPRINTF(x) if (ohcidebug) logprintf x
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#define DPRINTFN(n,x) if (ohcidebug>(n)) logprintf x
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int ohcidebug = 0;
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SYSCTL_NODE(_hw_usb, OID_AUTO, ohci, CTLFLAG_RW, 0, "USB ohci");
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SYSCTL_INT(_hw_usb_ohci, OID_AUTO, debug, CTLFLAG_RW,
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&ohcidebug, 0, "ohci debug level");
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#ifndef __NetBSD__
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#define bitmask_snprintf(q,f,b,l) snprintf((b), (l), "%b", (q), (f))
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#endif
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#else
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#define DPRINTF(x)
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#define DPRINTFN(n,x)
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#endif
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/*
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* The OHCI controller is little endian, so on big endian machines
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* the data strored in memory needs to be swapped.
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*/
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#if defined(__OpenBSD__)
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#if BYTE_ORDER == BIG_ENDIAN
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#define htole32(x) (bswap32(x))
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#define le32toh(x) (bswap32(x))
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#else
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#define htole32(x) (x)
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#define le32toh(x) (x)
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#endif
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#endif
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struct ohci_pipe;
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Static ohci_soft_ed_t *ohci_alloc_sed(ohci_softc_t *);
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Static void ohci_free_sed(ohci_softc_t *, ohci_soft_ed_t *);
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Static ohci_soft_td_t *ohci_alloc_std(ohci_softc_t *);
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Static void ohci_free_std(ohci_softc_t *, ohci_soft_td_t *);
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Static ohci_soft_itd_t *ohci_alloc_sitd(ohci_softc_t *);
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Static void ohci_free_sitd(ohci_softc_t *,ohci_soft_itd_t *);
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#if 0
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Static void ohci_free_std_chain(ohci_softc_t *, ohci_soft_td_t *,
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ohci_soft_td_t *);
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#endif
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Static usbd_status ohci_alloc_std_chain(struct ohci_pipe *,
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ohci_softc_t *, int, int, usbd_xfer_handle,
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ohci_soft_td_t *, ohci_soft_td_t **);
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#if defined(__NetBSD__) || defined(__OpenBSD__)
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Static void ohci_shutdown(void *v);
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Static void ohci_power(int, void *);
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#endif
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Static usbd_status ohci_open(usbd_pipe_handle);
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Static void ohci_poll(struct usbd_bus *);
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Static void ohci_softintr(void *);
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Static void ohci_waitintr(ohci_softc_t *, usbd_xfer_handle);
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Static void ohci_add_done(ohci_softc_t *, ohci_physaddr_t);
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Static void ohci_rhsc(ohci_softc_t *, usbd_xfer_handle);
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Static usbd_status ohci_device_request(usbd_xfer_handle xfer);
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Static void ohci_add_ed(ohci_soft_ed_t *, ohci_soft_ed_t *);
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Static void ohci_rem_ed(ohci_soft_ed_t *, ohci_soft_ed_t *);
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Static void ohci_hash_add_td(ohci_softc_t *, ohci_soft_td_t *);
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Static void ohci_hash_rem_td(ohci_softc_t *, ohci_soft_td_t *);
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Static ohci_soft_td_t *ohci_hash_find_td(ohci_softc_t *, ohci_physaddr_t);
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Static void ohci_hash_add_itd(ohci_softc_t *, ohci_soft_itd_t *);
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Static void ohci_hash_rem_itd(ohci_softc_t *, ohci_soft_itd_t *);
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Static ohci_soft_itd_t *ohci_hash_find_itd(ohci_softc_t *, ohci_physaddr_t);
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Static usbd_status ohci_setup_isoc(usbd_pipe_handle pipe);
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Static void ohci_device_isoc_enter(usbd_xfer_handle);
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Static usbd_status ohci_allocm(struct usbd_bus *, usb_dma_t *, u_int32_t);
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Static void ohci_freem(struct usbd_bus *, usb_dma_t *);
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Static usbd_xfer_handle ohci_allocx(struct usbd_bus *);
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Static void ohci_freex(struct usbd_bus *, usbd_xfer_handle);
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Static usbd_status ohci_root_ctrl_transfer(usbd_xfer_handle);
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Static usbd_status ohci_root_ctrl_start(usbd_xfer_handle);
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Static void ohci_root_ctrl_abort(usbd_xfer_handle);
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Static void ohci_root_ctrl_close(usbd_pipe_handle);
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Static void ohci_root_ctrl_done(usbd_xfer_handle);
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Static usbd_status ohci_root_intr_transfer(usbd_xfer_handle);
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Static usbd_status ohci_root_intr_start(usbd_xfer_handle);
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Static void ohci_root_intr_abort(usbd_xfer_handle);
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Static void ohci_root_intr_close(usbd_pipe_handle);
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Static void ohci_root_intr_done(usbd_xfer_handle);
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Static usbd_status ohci_device_ctrl_transfer(usbd_xfer_handle);
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Static usbd_status ohci_device_ctrl_start(usbd_xfer_handle);
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Static void ohci_device_ctrl_abort(usbd_xfer_handle);
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Static void ohci_device_ctrl_close(usbd_pipe_handle);
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Static void ohci_device_ctrl_done(usbd_xfer_handle);
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Static usbd_status ohci_device_bulk_transfer(usbd_xfer_handle);
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Static usbd_status ohci_device_bulk_start(usbd_xfer_handle);
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Static void ohci_device_bulk_abort(usbd_xfer_handle);
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Static void ohci_device_bulk_close(usbd_pipe_handle);
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Static void ohci_device_bulk_done(usbd_xfer_handle);
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Static usbd_status ohci_device_intr_transfer(usbd_xfer_handle);
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Static usbd_status ohci_device_intr_start(usbd_xfer_handle);
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Static void ohci_device_intr_abort(usbd_xfer_handle);
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Static void ohci_device_intr_close(usbd_pipe_handle);
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Static void ohci_device_intr_done(usbd_xfer_handle);
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Static usbd_status ohci_device_isoc_transfer(usbd_xfer_handle);
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Static usbd_status ohci_device_isoc_start(usbd_xfer_handle);
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Static void ohci_device_isoc_abort(usbd_xfer_handle);
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Static void ohci_device_isoc_close(usbd_pipe_handle);
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Static void ohci_device_isoc_done(usbd_xfer_handle);
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Static usbd_status ohci_device_setintr(ohci_softc_t *sc,
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struct ohci_pipe *pipe, int ival);
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Static int ohci_str(usb_string_descriptor_t *, int, const char *);
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Static void ohci_timeout(void *);
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Static void ohci_timeout_task(void *);
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Static void ohci_rhsc_able(ohci_softc_t *, int);
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Static void ohci_rhsc_enable(void *);
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Static void ohci_close_pipe(usbd_pipe_handle, ohci_soft_ed_t *);
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Static void ohci_abort_xfer(usbd_xfer_handle, usbd_status);
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Static void ohci_device_clear_toggle(usbd_pipe_handle pipe);
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Static void ohci_noop(usbd_pipe_handle pipe);
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Static usbd_status ohci_controller_init(ohci_softc_t *sc);
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#ifdef USB_DEBUG
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Static void ohci_dumpregs(ohci_softc_t *);
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Static void ohci_dump_tds(ohci_soft_td_t *);
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Static void ohci_dump_td(ohci_soft_td_t *);
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Static void ohci_dump_ed(ohci_soft_ed_t *);
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Static void ohci_dump_itd(ohci_soft_itd_t *);
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Static void ohci_dump_itds(ohci_soft_itd_t *);
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#endif
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#define OBARR(sc) bus_space_barrier((sc)->iot, (sc)->ioh, 0, (sc)->sc_size, \
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BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE)
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#define OWRITE1(sc, r, x) \
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do { OBARR(sc); bus_space_write_1((sc)->iot, (sc)->ioh, (r), (x)); } while (0)
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#define OWRITE2(sc, r, x) \
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do { OBARR(sc); bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)); } while (0)
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#define OWRITE4(sc, r, x) \
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do { OBARR(sc); bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)); } while (0)
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#define OREAD1(sc, r) (OBARR(sc), bus_space_read_1((sc)->iot, (sc)->ioh, (r)))
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#define OREAD2(sc, r) (OBARR(sc), bus_space_read_2((sc)->iot, (sc)->ioh, (r)))
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#define OREAD4(sc, r) (OBARR(sc), bus_space_read_4((sc)->iot, (sc)->ioh, (r)))
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/* Reverse the bits in a value 0 .. 31 */
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Static u_int8_t revbits[OHCI_NO_INTRS] =
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{ 0x00, 0x10, 0x08, 0x18, 0x04, 0x14, 0x0c, 0x1c,
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0x02, 0x12, 0x0a, 0x1a, 0x06, 0x16, 0x0e, 0x1e,
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0x01, 0x11, 0x09, 0x19, 0x05, 0x15, 0x0d, 0x1d,
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0x03, 0x13, 0x0b, 0x1b, 0x07, 0x17, 0x0f, 0x1f };
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struct ohci_pipe {
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struct usbd_pipe pipe;
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ohci_soft_ed_t *sed;
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u_int32_t aborting;
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union {
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ohci_soft_td_t *td;
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ohci_soft_itd_t *itd;
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} tail;
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/* Info needed for different pipe kinds. */
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union {
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/* Control pipe */
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struct {
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usb_dma_t reqdma;
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u_int length;
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ohci_soft_td_t *setup, *data, *stat;
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} ctl;
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/* Interrupt pipe */
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struct {
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int nslots;
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int pos;
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} intr;
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/* Bulk pipe */
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struct {
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u_int length;
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int isread;
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} bulk;
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/* Iso pipe */
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struct iso {
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int next, inuse;
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} iso;
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} u;
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};
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#define OHCI_INTR_ENDPT 1
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Static struct usbd_bus_methods ohci_bus_methods = {
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ohci_open,
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ohci_softintr,
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ohci_poll,
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ohci_allocm,
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ohci_freem,
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ohci_allocx,
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ohci_freex,
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};
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Static struct usbd_pipe_methods ohci_root_ctrl_methods = {
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ohci_root_ctrl_transfer,
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ohci_root_ctrl_start,
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ohci_root_ctrl_abort,
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ohci_root_ctrl_close,
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ohci_noop,
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ohci_root_ctrl_done,
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};
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Static struct usbd_pipe_methods ohci_root_intr_methods = {
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ohci_root_intr_transfer,
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ohci_root_intr_start,
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ohci_root_intr_abort,
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ohci_root_intr_close,
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ohci_noop,
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ohci_root_intr_done,
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};
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Static struct usbd_pipe_methods ohci_device_ctrl_methods = {
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ohci_device_ctrl_transfer,
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ohci_device_ctrl_start,
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ohci_device_ctrl_abort,
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ohci_device_ctrl_close,
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ohci_noop,
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ohci_device_ctrl_done,
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};
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Static struct usbd_pipe_methods ohci_device_intr_methods = {
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ohci_device_intr_transfer,
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ohci_device_intr_start,
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ohci_device_intr_abort,
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ohci_device_intr_close,
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ohci_device_clear_toggle,
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ohci_device_intr_done,
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};
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Static struct usbd_pipe_methods ohci_device_bulk_methods = {
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ohci_device_bulk_transfer,
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ohci_device_bulk_start,
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ohci_device_bulk_abort,
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ohci_device_bulk_close,
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ohci_device_clear_toggle,
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ohci_device_bulk_done,
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};
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Static struct usbd_pipe_methods ohci_device_isoc_methods = {
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ohci_device_isoc_transfer,
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ohci_device_isoc_start,
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ohci_device_isoc_abort,
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ohci_device_isoc_close,
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ohci_noop,
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ohci_device_isoc_done,
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};
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#if defined(__NetBSD__) || defined(__OpenBSD__)
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int
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ohci_activate(device_ptr_t self, enum devact act)
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{
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struct ohci_softc *sc = (struct ohci_softc *)self;
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int rv = 0;
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switch (act) {
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case DVACT_ACTIVATE:
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return (EOPNOTSUPP);
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case DVACT_DEACTIVATE:
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if (sc->sc_child != NULL)
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rv = config_deactivate(sc->sc_child);
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sc->sc_dying = 1;
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break;
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}
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return (rv);
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}
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int
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ohci_detach(struct ohci_softc *sc, int flags)
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{
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int rv = 0;
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if (sc->sc_child != NULL)
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rv = config_detach(sc->sc_child, flags);
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if (rv != 0)
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return (rv);
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usb_uncallout(sc->sc_tmo_rhsc, ohci_rhsc_enable, sc);
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#if defined(__NetBSD__) || defined(__OpenBSD__)
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powerhook_disestablish(sc->sc_powerhook);
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shutdownhook_disestablish(sc->sc_shutdownhook);
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#endif
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usb_delay_ms(&sc->sc_bus, 300); /* XXX let stray task complete */
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/* free data structures XXX */
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return (rv);
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}
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#endif
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ohci_soft_ed_t *
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ohci_alloc_sed(ohci_softc_t *sc)
|
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{
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ohci_soft_ed_t *sed;
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usbd_status err;
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int i, offs;
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usb_dma_t dma;
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if (sc->sc_freeeds == NULL) {
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DPRINTFN(2, ("ohci_alloc_sed: allocating chunk\n"));
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err = usb_allocmem(&sc->sc_bus, OHCI_SED_SIZE * OHCI_SED_CHUNK,
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OHCI_ED_ALIGN, &dma);
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if (err)
|
|
return (NULL);
|
|
for(i = 0; i < OHCI_SED_CHUNK; i++) {
|
|
offs = i * OHCI_SED_SIZE;
|
|
sed = KERNADDR(&dma, offs);
|
|
sed->physaddr = DMAADDR(&dma, offs);
|
|
sed->next = sc->sc_freeeds;
|
|
sc->sc_freeeds = sed;
|
|
}
|
|
}
|
|
sed = sc->sc_freeeds;
|
|
sc->sc_freeeds = sed->next;
|
|
memset(&sed->ed, 0, sizeof(ohci_ed_t));
|
|
sed->next = 0;
|
|
return (sed);
|
|
}
|
|
|
|
void
|
|
ohci_free_sed(ohci_softc_t *sc, ohci_soft_ed_t *sed)
|
|
{
|
|
sed->next = sc->sc_freeeds;
|
|
sc->sc_freeeds = sed;
|
|
}
|
|
|
|
ohci_soft_td_t *
|
|
ohci_alloc_std(ohci_softc_t *sc)
|
|
{
|
|
ohci_soft_td_t *std;
|
|
usbd_status err;
|
|
int i, offs;
|
|
usb_dma_t dma;
|
|
int s;
|
|
|
|
if (sc->sc_freetds == NULL) {
|
|
DPRINTFN(2, ("ohci_alloc_std: allocating chunk\n"));
|
|
err = usb_allocmem(&sc->sc_bus, OHCI_STD_SIZE * OHCI_STD_CHUNK,
|
|
OHCI_TD_ALIGN, &dma);
|
|
if (err)
|
|
return (NULL);
|
|
s = splusb();
|
|
for(i = 0; i < OHCI_STD_CHUNK; i++) {
|
|
offs = i * OHCI_STD_SIZE;
|
|
std = KERNADDR(&dma, offs);
|
|
std->physaddr = DMAADDR(&dma, offs);
|
|
std->nexttd = sc->sc_freetds;
|
|
sc->sc_freetds = std;
|
|
}
|
|
splx(s);
|
|
}
|
|
|
|
s = splusb();
|
|
std = sc->sc_freetds;
|
|
sc->sc_freetds = std->nexttd;
|
|
memset(&std->td, 0, sizeof(ohci_td_t));
|
|
std->nexttd = NULL;
|
|
std->xfer = NULL;
|
|
ohci_hash_add_td(sc, std);
|
|
splx(s);
|
|
|
|
return (std);
|
|
}
|
|
|
|
void
|
|
ohci_free_std(ohci_softc_t *sc, ohci_soft_td_t *std)
|
|
{
|
|
int s;
|
|
|
|
s = splusb();
|
|
ohci_hash_rem_td(sc, std);
|
|
std->nexttd = sc->sc_freetds;
|
|
sc->sc_freetds = std;
|
|
splx(s);
|
|
}
|
|
|
|
usbd_status
|
|
ohci_alloc_std_chain(struct ohci_pipe *opipe, ohci_softc_t *sc,
|
|
int alen, int rd, usbd_xfer_handle xfer,
|
|
ohci_soft_td_t *sp, ohci_soft_td_t **ep)
|
|
{
|
|
ohci_soft_td_t *next, *cur;
|
|
ohci_physaddr_t dataphys;
|
|
u_int32_t tdflags;
|
|
int offset = 0;
|
|
int len, curlen;
|
|
usb_dma_t *dma = &xfer->dmabuf;
|
|
u_int16_t flags = xfer->flags;
|
|
|
|
DPRINTFN(alen < 4096,("ohci_alloc_std_chain: start len=%d\n", alen));
|
|
|
|
len = alen;
|
|
cur = sp;
|
|
|
|
tdflags = htole32(
|
|
(rd ? OHCI_TD_IN : OHCI_TD_OUT) |
|
|
(flags & USBD_SHORT_XFER_OK ? OHCI_TD_R : 0) |
|
|
OHCI_TD_NOCC | OHCI_TD_TOGGLE_CARRY | OHCI_TD_NOINTR);
|
|
|
|
for (;;) {
|
|
next = ohci_alloc_std(sc);
|
|
if (next == NULL)
|
|
goto nomem;
|
|
|
|
dataphys = DMAADDR(dma, offset);
|
|
|
|
/*
|
|
* The OHCI hardware can handle at most one 4k crossing.
|
|
* XXX - currently we only allocate contigous buffers, but
|
|
* the OHCI spec says: If during the data transfer the buffer
|
|
* address contained in the HC's working copy of
|
|
* CurrentBufferPointer crosses a 4K boundary, the upper 20
|
|
* bits of Buffer End are copied to the working value of
|
|
* CurrentBufferPointer causing the next buffer address to
|
|
* be the 0th byte in the same 4K page that contains the
|
|
* last byte of the buffer (the 4K boundary crossing may
|
|
* occur within a data packet transfer.)
|
|
*
|
|
* If/when dma has multiple segments, this will need to
|
|
* properly handle fragmenting TD's.
|
|
*
|
|
* We can describe the above using maxsegsz = 4k and nsegs = 2
|
|
* in the future.
|
|
*/
|
|
if (OHCI_PAGE(dataphys) == OHCI_PAGE(DMAADDR(dma, offset +
|
|
len - 1)) || len - (OHCI_PAGE_SIZE -
|
|
OHCI_PAGE_OFFSET(dataphys)) <= OHCI_PAGE_SIZE) {
|
|
/* we can handle it in this TD */
|
|
curlen = len;
|
|
} else {
|
|
/* XXX The calculation below is wrong and could
|
|
* result in a packet that is not a multiple of the
|
|
* MaxPacketSize in the case where the buffer does not
|
|
* start on an appropriate address (like for example in
|
|
* the case of an mbuf cluster). You'll get an early
|
|
* short packet.
|
|
*/
|
|
/* must use multiple TDs, fill as much as possible. */
|
|
curlen = 2 * OHCI_PAGE_SIZE -
|
|
OHCI_PAGE_OFFSET(dataphys);
|
|
/* the length must be a multiple of the max size */
|
|
curlen -= curlen %
|
|
UGETW(opipe->pipe.endpoint->edesc->wMaxPacketSize);
|
|
#ifdef DIAGNOSTIC
|
|
if (curlen == 0)
|
|
panic("ohci_alloc_std: curlen == 0");
|
|
#endif
|
|
}
|
|
DPRINTFN(4,("ohci_alloc_std_chain: dataphys=0x%08x "
|
|
"len=%d curlen=%d\n",
|
|
dataphys, len, curlen));
|
|
len -= curlen;
|
|
|
|
cur->td.td_flags = tdflags;
|
|
cur->td.td_cbp = htole32(dataphys);
|
|
cur->nexttd = next;
|
|
cur->td.td_nexttd = htole32(next->physaddr);
|
|
cur->td.td_be = htole32(DMAADDR(dma, offset + curlen - 1));
|
|
cur->len = curlen;
|
|
cur->flags = OHCI_ADD_LEN;
|
|
cur->xfer = xfer;
|
|
DPRINTFN(10,("ohci_alloc_std_chain: cbp=0x%08x be=0x%08x\n",
|
|
dataphys, dataphys + curlen - 1));
|
|
if (len == 0)
|
|
break;
|
|
if (len < 0)
|
|
panic("Length went negative: %d curlen %d dma %p offset %08x", len, curlen, dma, (int)0);
|
|
|
|
DPRINTFN(10,("ohci_alloc_std_chain: extend chain\n"));
|
|
offset += curlen;
|
|
cur = next;
|
|
}
|
|
if ((flags & USBD_FORCE_SHORT_XFER) &&
|
|
alen % UGETW(opipe->pipe.endpoint->edesc->wMaxPacketSize) == 0) {
|
|
/* Force a 0 length transfer at the end. */
|
|
|
|
cur = next;
|
|
|
|
next = ohci_alloc_std(sc);
|
|
if (next == NULL)
|
|
goto nomem;
|
|
|
|
cur->td.td_flags = tdflags;
|
|
cur->td.td_cbp = 0; /* indicate 0 length packet */
|
|
cur->nexttd = next;
|
|
cur->td.td_nexttd = htole32(next->physaddr);
|
|
cur->td.td_be = ~0;
|
|
cur->len = 0;
|
|
cur->flags = 0;
|
|
cur->xfer = xfer;
|
|
DPRINTFN(2,("ohci_alloc_std_chain: add 0 xfer\n"));
|
|
}
|
|
*ep = cur;
|
|
|
|
return (USBD_NORMAL_COMPLETION);
|
|
|
|
nomem:
|
|
/* XXX free chain */
|
|
return (USBD_NOMEM);
|
|
}
|
|
|
|
#if 0
|
|
Static void
|
|
ohci_free_std_chain(ohci_softc_t *sc, ohci_soft_td_t *std,
|
|
ohci_soft_td_t *stdend)
|
|
{
|
|
ohci_soft_td_t *p;
|
|
|
|
for (; std != stdend; std = p) {
|
|
p = std->nexttd;
|
|
ohci_free_std(sc, std);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
ohci_soft_itd_t *
|
|
ohci_alloc_sitd(ohci_softc_t *sc)
|
|
{
|
|
ohci_soft_itd_t *sitd;
|
|
usbd_status err;
|
|
int i, s, offs;
|
|
usb_dma_t dma;
|
|
|
|
if (sc->sc_freeitds == NULL) {
|
|
DPRINTFN(2, ("ohci_alloc_sitd: allocating chunk\n"));
|
|
err = usb_allocmem(&sc->sc_bus, OHCI_SITD_SIZE * OHCI_SITD_CHUNK,
|
|
OHCI_ITD_ALIGN, &dma);
|
|
if (err)
|
|
return (NULL);
|
|
s = splusb();
|
|
for(i = 0; i < OHCI_SITD_CHUNK; i++) {
|
|
offs = i * OHCI_SITD_SIZE;
|
|
sitd = KERNADDR(&dma, offs);
|
|
sitd->physaddr = DMAADDR(&dma, offs);
|
|
sitd->nextitd = sc->sc_freeitds;
|
|
sc->sc_freeitds = sitd;
|
|
}
|
|
splx(s);
|
|
}
|
|
|
|
s = splusb();
|
|
sitd = sc->sc_freeitds;
|
|
sc->sc_freeitds = sitd->nextitd;
|
|
memset(&sitd->itd, 0, sizeof(ohci_itd_t));
|
|
sitd->nextitd = NULL;
|
|
sitd->xfer = NULL;
|
|
ohci_hash_add_itd(sc, sitd);
|
|
splx(s);
|
|
|
|
#ifdef DIAGNOSTIC
|
|
sitd->isdone = 0;
|
|
#endif
|
|
|
|
return (sitd);
|
|
}
|
|
|
|
void
|
|
ohci_free_sitd(ohci_softc_t *sc, ohci_soft_itd_t *sitd)
|
|
{
|
|
int s;
|
|
|
|
DPRINTFN(10,("ohci_free_sitd: sitd=%p\n", sitd));
|
|
|
|
#ifdef DIAGNOSTIC
|
|
if (!sitd->isdone) {
|
|
panic("ohci_free_sitd: sitd=%p not done", sitd);
|
|
return;
|
|
}
|
|
/* Warn double free */
|
|
sitd->isdone = 0;
|
|
#endif
|
|
|
|
s = splusb();
|
|
ohci_hash_rem_itd(sc, sitd);
|
|
sitd->nextitd = sc->sc_freeitds;
|
|
sc->sc_freeitds = sitd;
|
|
splx(s);
|
|
}
|
|
|
|
usbd_status
|
|
ohci_init(ohci_softc_t *sc)
|
|
{
|
|
ohci_soft_ed_t *sed, *psed;
|
|
usbd_status err;
|
|
int i;
|
|
u_int32_t rev;
|
|
|
|
DPRINTF(("ohci_init: start\n"));
|
|
#if defined(__OpenBSD__)
|
|
printf(",");
|
|
#else
|
|
printf("%s:", USBDEVNAME(sc->sc_bus.bdev));
|
|
#endif
|
|
rev = OREAD4(sc, OHCI_REVISION);
|
|
printf(" OHCI version %d.%d%s\n", OHCI_REV_HI(rev), OHCI_REV_LO(rev),
|
|
OHCI_REV_LEGACY(rev) ? ", legacy support" : "");
|
|
|
|
if (OHCI_REV_HI(rev) != 1 || OHCI_REV_LO(rev) != 0) {
|
|
printf("%s: unsupported OHCI revision\n",
|
|
USBDEVNAME(sc->sc_bus.bdev));
|
|
sc->sc_bus.usbrev = USBREV_UNKNOWN;
|
|
return (USBD_INVAL);
|
|
}
|
|
sc->sc_bus.usbrev = USBREV_1_0;
|
|
|
|
for (i = 0; i < OHCI_HASH_SIZE; i++)
|
|
LIST_INIT(&sc->sc_hash_tds[i]);
|
|
for (i = 0; i < OHCI_HASH_SIZE; i++)
|
|
LIST_INIT(&sc->sc_hash_itds[i]);
|
|
|
|
SIMPLEQ_INIT(&sc->sc_free_xfers);
|
|
|
|
/* XXX determine alignment by R/W */
|
|
/* Allocate the HCCA area. */
|
|
err = usb_allocmem(&sc->sc_bus, OHCI_HCCA_SIZE,
|
|
OHCI_HCCA_ALIGN, &sc->sc_hccadma);
|
|
if (err)
|
|
return (err);
|
|
sc->sc_hcca = KERNADDR(&sc->sc_hccadma, 0);
|
|
memset(sc->sc_hcca, 0, OHCI_HCCA_SIZE);
|
|
|
|
sc->sc_eintrs = OHCI_NORMAL_INTRS;
|
|
|
|
/* Allocate dummy ED that starts the control list. */
|
|
sc->sc_ctrl_head = ohci_alloc_sed(sc);
|
|
if (sc->sc_ctrl_head == NULL) {
|
|
err = USBD_NOMEM;
|
|
goto bad1;
|
|
}
|
|
sc->sc_ctrl_head->ed.ed_flags |= htole32(OHCI_ED_SKIP);
|
|
|
|
/* Allocate dummy ED that starts the bulk list. */
|
|
sc->sc_bulk_head = ohci_alloc_sed(sc);
|
|
if (sc->sc_bulk_head == NULL) {
|
|
err = USBD_NOMEM;
|
|
goto bad2;
|
|
}
|
|
sc->sc_bulk_head->ed.ed_flags |= htole32(OHCI_ED_SKIP);
|
|
|
|
/* Allocate dummy ED that starts the isochronous list. */
|
|
sc->sc_isoc_head = ohci_alloc_sed(sc);
|
|
if (sc->sc_isoc_head == NULL) {
|
|
err = USBD_NOMEM;
|
|
goto bad3;
|
|
}
|
|
sc->sc_isoc_head->ed.ed_flags |= htole32(OHCI_ED_SKIP);
|
|
|
|
/* Allocate all the dummy EDs that make up the interrupt tree. */
|
|
for (i = 0; i < OHCI_NO_EDS; i++) {
|
|
sed = ohci_alloc_sed(sc);
|
|
if (sed == NULL) {
|
|
while (--i >= 0)
|
|
ohci_free_sed(sc, sc->sc_eds[i]);
|
|
err = USBD_NOMEM;
|
|
goto bad4;
|
|
}
|
|
/* All ED fields are set to 0. */
|
|
sc->sc_eds[i] = sed;
|
|
sed->ed.ed_flags |= htole32(OHCI_ED_SKIP);
|
|
if (i != 0)
|
|
psed = sc->sc_eds[(i-1) / 2];
|
|
else
|
|
psed= sc->sc_isoc_head;
|
|
sed->next = psed;
|
|
sed->ed.ed_nexted = htole32(psed->physaddr);
|
|
}
|
|
/*
|
|
* Fill HCCA interrupt table. The bit reversal is to get
|
|
* the tree set up properly to spread the interrupts.
|
|
*/
|
|
for (i = 0; i < OHCI_NO_INTRS; i++)
|
|
sc->sc_hcca->hcca_interrupt_table[revbits[i]] =
|
|
htole32(sc->sc_eds[OHCI_NO_EDS-OHCI_NO_INTRS+i]->physaddr);
|
|
|
|
#ifdef USB_DEBUG
|
|
if (ohcidebug > 15) {
|
|
for (i = 0; i < OHCI_NO_EDS; i++) {
|
|
printf("ed#%d ", i);
|
|
ohci_dump_ed(sc->sc_eds[i]);
|
|
}
|
|
printf("iso ");
|
|
ohci_dump_ed(sc->sc_isoc_head);
|
|
}
|
|
#endif
|
|
|
|
err = ohci_controller_init(sc);
|
|
if (err != USBD_NORMAL_COMPLETION)
|
|
goto bad5;
|
|
|
|
/* Set up the bus struct. */
|
|
sc->sc_bus.methods = &ohci_bus_methods;
|
|
sc->sc_bus.pipe_size = sizeof(struct ohci_pipe);
|
|
|
|
#if defined(__NetBSD__) || defined(__OpenBSD__)
|
|
sc->sc_control = sc->sc_intre = 0;
|
|
sc->sc_powerhook = powerhook_establish(ohci_power, sc);
|
|
sc->sc_shutdownhook = shutdownhook_establish(ohci_shutdown, sc);
|
|
#endif
|
|
|
|
usb_callout_init(sc->sc_tmo_rhsc);
|
|
|
|
return (USBD_NORMAL_COMPLETION);
|
|
|
|
bad5:
|
|
for (i = 0; i < OHCI_NO_EDS; i++)
|
|
ohci_free_sed(sc, sc->sc_eds[i]);
|
|
bad4:
|
|
ohci_free_sed(sc, sc->sc_isoc_head);
|
|
bad3:
|
|
ohci_free_sed(sc, sc->sc_bulk_head);
|
|
bad2:
|
|
ohci_free_sed(sc, sc->sc_ctrl_head);
|
|
bad1:
|
|
usb_freemem(&sc->sc_bus, &sc->sc_hccadma);
|
|
return (err);
|
|
}
|
|
|
|
Static usbd_status
|
|
ohci_controller_init(ohci_softc_t *sc)
|
|
{
|
|
int i;
|
|
u_int32_t s, ctl, ival, hcr, fm, per, desca;
|
|
|
|
/* Determine in what context we are running. */
|
|
ctl = OREAD4(sc, OHCI_CONTROL);
|
|
if (ctl & OHCI_IR) {
|
|
/* SMM active, request change */
|
|
DPRINTF(("ohci_init: SMM active, request owner change\n"));
|
|
s = OREAD4(sc, OHCI_COMMAND_STATUS);
|
|
OWRITE4(sc, OHCI_COMMAND_STATUS, s | OHCI_OCR);
|
|
for (i = 0; i < 100 && (ctl & OHCI_IR); i++) {
|
|
usb_delay_ms(&sc->sc_bus, 1);
|
|
ctl = OREAD4(sc, OHCI_CONTROL);
|
|
}
|
|
if ((ctl & OHCI_IR) == 0) {
|
|
printf("%s: SMM does not respond, resetting\n",
|
|
USBDEVNAME(sc->sc_bus.bdev));
|
|
OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET);
|
|
goto reset;
|
|
}
|
|
#if 0
|
|
/* Don't bother trying to reuse the BIOS init, we'll reset it anyway. */
|
|
} else if ((ctl & OHCI_HCFS_MASK) != OHCI_HCFS_RESET) {
|
|
/* BIOS started controller. */
|
|
DPRINTF(("ohci_init: BIOS active\n"));
|
|
if ((ctl & OHCI_HCFS_MASK) != OHCI_HCFS_OPERATIONAL) {
|
|
OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_OPERATIONAL);
|
|
usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY);
|
|
}
|
|
#endif
|
|
} else {
|
|
DPRINTF(("ohci_init: cold started\n"));
|
|
reset:
|
|
/* Controller was cold started. */
|
|
usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY);
|
|
}
|
|
|
|
/*
|
|
* This reset should not be necessary according to the OHCI spec, but
|
|
* without it some controllers do not start.
|
|
*/
|
|
DPRINTF(("%s: resetting\n", USBDEVNAME(sc->sc_bus.bdev)));
|
|
OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET);
|
|
usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY);
|
|
|
|
/* We now own the host controller and the bus has been reset. */
|
|
ival = OHCI_GET_IVAL(OREAD4(sc, OHCI_FM_INTERVAL));
|
|
|
|
OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_HCR); /* Reset HC */
|
|
/* Nominal time for a reset is 10 us. */
|
|
for (i = 0; i < 10; i++) {
|
|
delay(10);
|
|
hcr = OREAD4(sc, OHCI_COMMAND_STATUS) & OHCI_HCR;
|
|
if (!hcr)
|
|
break;
|
|
}
|
|
if (hcr) {
|
|
printf("%s: reset timeout\n", USBDEVNAME(sc->sc_bus.bdev));
|
|
return (USBD_IOERROR);
|
|
}
|
|
#ifdef USB_DEBUG
|
|
if (ohcidebug > 15)
|
|
ohci_dumpregs(sc);
|
|
#endif
|
|
|
|
/* The controller is now in SUSPEND state, we have 2ms to finish. */
|
|
|
|
/* Set up HC registers. */
|
|
OWRITE4(sc, OHCI_HCCA, DMAADDR(&sc->sc_hccadma, 0));
|
|
OWRITE4(sc, OHCI_CONTROL_HEAD_ED, sc->sc_ctrl_head->physaddr);
|
|
OWRITE4(sc, OHCI_BULK_HEAD_ED, sc->sc_bulk_head->physaddr);
|
|
/* disable all interrupts and then switch on all desired interrupts */
|
|
OWRITE4(sc, OHCI_INTERRUPT_DISABLE, OHCI_ALL_INTRS);
|
|
OWRITE4(sc, OHCI_INTERRUPT_ENABLE, sc->sc_eintrs | OHCI_MIE);
|
|
/* switch on desired functional features */
|
|
ctl = OREAD4(sc, OHCI_CONTROL);
|
|
ctl &= ~(OHCI_CBSR_MASK | OHCI_LES | OHCI_HCFS_MASK | OHCI_IR);
|
|
ctl |= OHCI_PLE | OHCI_IE | OHCI_CLE | OHCI_BLE |
|
|
OHCI_RATIO_1_4 | OHCI_HCFS_OPERATIONAL;
|
|
/* And finally start it! */
|
|
OWRITE4(sc, OHCI_CONTROL, ctl);
|
|
|
|
/*
|
|
* The controller is now OPERATIONAL. Set a some final
|
|
* registers that should be set earlier, but that the
|
|
* controller ignores when in the SUSPEND state.
|
|
*/
|
|
fm = (OREAD4(sc, OHCI_FM_INTERVAL) & OHCI_FIT) ^ OHCI_FIT;
|
|
fm |= OHCI_FSMPS(ival) | ival;
|
|
OWRITE4(sc, OHCI_FM_INTERVAL, fm);
|
|
per = OHCI_PERIODIC(ival); /* 90% periodic */
|
|
OWRITE4(sc, OHCI_PERIODIC_START, per);
|
|
|
|
/* Fiddle the No OverCurrent Protection bit to avoid chip bug. */
|
|
desca = OREAD4(sc, OHCI_RH_DESCRIPTOR_A);
|
|
OWRITE4(sc, OHCI_RH_DESCRIPTOR_A, desca | OHCI_NOCP);
|
|
OWRITE4(sc, OHCI_RH_STATUS, OHCI_LPSC); /* Enable port power */
|
|
usb_delay_ms(&sc->sc_bus, OHCI_ENABLE_POWER_DELAY);
|
|
OWRITE4(sc, OHCI_RH_DESCRIPTOR_A, desca);
|
|
|
|
/*
|
|
* The AMD756 requires a delay before re-reading the register,
|
|
* otherwise it will occasionally report 0 ports.
|
|
*/
|
|
sc->sc_noport = 0;
|
|
for (i = 0; i < 10 && sc->sc_noport == 0; i++) {
|
|
usb_delay_ms(&sc->sc_bus, OHCI_READ_DESC_DELAY);
|
|
sc->sc_noport = OHCI_GET_NDP(OREAD4(sc, OHCI_RH_DESCRIPTOR_A));
|
|
}
|
|
|
|
#ifdef USB_DEBUG
|
|
if (ohcidebug > 5)
|
|
ohci_dumpregs(sc);
|
|
#endif
|
|
return (USBD_NORMAL_COMPLETION);
|
|
}
|
|
|
|
usbd_status
|
|
ohci_allocm(struct usbd_bus *bus, usb_dma_t *dma, u_int32_t size)
|
|
{
|
|
return (usb_allocmem(bus, size, 0, dma));
|
|
}
|
|
|
|
void
|
|
ohci_freem(struct usbd_bus *bus, usb_dma_t *dma)
|
|
{
|
|
usb_freemem(bus, dma);
|
|
}
|
|
|
|
usbd_xfer_handle
|
|
ohci_allocx(struct usbd_bus *bus)
|
|
{
|
|
struct ohci_softc *sc = (struct ohci_softc *)bus;
|
|
usbd_xfer_handle xfer;
|
|
|
|
xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers);
|
|
if (xfer != NULL) {
|
|
SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, next);
|
|
#ifdef DIAGNOSTIC
|
|
if (xfer->busy_free != XFER_FREE) {
|
|
printf("ohci_allocx: xfer=%p not free, 0x%08x\n", xfer,
|
|
xfer->busy_free);
|
|
}
|
|
#endif
|
|
} else {
|
|
xfer = malloc(sizeof(struct ohci_xfer), M_USB, M_NOWAIT);
|
|
}
|
|
if (xfer != NULL) {
|
|
memset(xfer, 0, sizeof (struct ohci_xfer));
|
|
#ifdef DIAGNOSTIC
|
|
xfer->busy_free = XFER_BUSY;
|
|
#endif
|
|
}
|
|
return (xfer);
|
|
}
|
|
|
|
void
|
|
ohci_freex(struct usbd_bus *bus, usbd_xfer_handle xfer)
|
|
{
|
|
struct ohci_softc *sc = (struct ohci_softc *)bus;
|
|
struct ohci_xfer *oxfer = (struct ohci_xfer *)xfer;
|
|
ohci_soft_itd_t *sitd;
|
|
|
|
if (oxfer->ohci_xfer_flags & OHCI_ISOC_DIRTY) {
|
|
for (sitd = xfer->hcpriv; sitd != NULL && sitd->xfer == xfer;
|
|
sitd = sitd->nextitd)
|
|
ohci_free_sitd(sc, sitd);
|
|
}
|
|
|
|
#ifdef DIAGNOSTIC
|
|
if (xfer->busy_free != XFER_BUSY) {
|
|
printf("ohci_freex: xfer=%p not busy, 0x%08x\n", xfer,
|
|
xfer->busy_free);
|
|
return;
|
|
}
|
|
xfer->busy_free = XFER_FREE;
|
|
#endif
|
|
SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next);
|
|
}
|
|
|
|
/*
|
|
* Shut down the controller when the system is going down.
|
|
*/
|
|
void
|
|
ohci_shutdown(void *v)
|
|
{
|
|
ohci_softc_t *sc = v;
|
|
|
|
DPRINTF(("ohci_shutdown: stopping the HC\n"));
|
|
OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET);
|
|
}
|
|
|
|
/*
|
|
* 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
|
|
ohci_power(int why, void *v)
|
|
{
|
|
ohci_softc_t *sc = v;
|
|
u_int32_t ctl;
|
|
int s;
|
|
|
|
#ifdef USB_DEBUG
|
|
DPRINTF(("ohci_power: sc=%p, why=%d\n", sc, why));
|
|
ohci_dumpregs(sc);
|
|
#endif
|
|
|
|
s = splhardusb();
|
|
if (why != PWR_RESUME) {
|
|
sc->sc_bus.use_polling++;
|
|
ctl = OREAD4(sc, OHCI_CONTROL) & ~OHCI_HCFS_MASK;
|
|
if (sc->sc_control == 0) {
|
|
/*
|
|
* Preserve register values, in case that APM BIOS
|
|
* does not recover them.
|
|
*/
|
|
sc->sc_control = ctl;
|
|
sc->sc_intre = OREAD4(sc, OHCI_INTERRUPT_ENABLE);
|
|
}
|
|
ctl |= OHCI_HCFS_SUSPEND;
|
|
OWRITE4(sc, OHCI_CONTROL, ctl);
|
|
usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT);
|
|
sc->sc_bus.use_polling--;
|
|
} else {
|
|
sc->sc_bus.use_polling++;
|
|
|
|
/* Some broken BIOSes never initialize Controller chip */
|
|
ohci_controller_init(sc);
|
|
|
|
if (sc->sc_intre)
|
|
OWRITE4(sc, OHCI_INTERRUPT_ENABLE,
|
|
sc->sc_intre & (OHCI_ALL_INTRS | OHCI_MIE));
|
|
if (sc->sc_control)
|
|
ctl = sc->sc_control;
|
|
else
|
|
ctl = OREAD4(sc, OHCI_CONTROL);
|
|
ctl |= OHCI_HCFS_RESUME;
|
|
OWRITE4(sc, OHCI_CONTROL, ctl);
|
|
usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY);
|
|
ctl = (ctl & ~OHCI_HCFS_MASK) | OHCI_HCFS_OPERATIONAL;
|
|
OWRITE4(sc, OHCI_CONTROL, ctl);
|
|
usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY);
|
|
sc->sc_control = sc->sc_intre = 0;
|
|
sc->sc_bus.use_polling--;
|
|
}
|
|
splx(s);
|
|
}
|
|
|
|
#ifdef USB_DEBUG
|
|
void
|
|
ohci_dumpregs(ohci_softc_t *sc)
|
|
{
|
|
DPRINTF(("ohci_dumpregs: rev=0x%08x control=0x%08x command=0x%08x\n",
|
|
OREAD4(sc, OHCI_REVISION),
|
|
OREAD4(sc, OHCI_CONTROL),
|
|
OREAD4(sc, OHCI_COMMAND_STATUS)));
|
|
DPRINTF((" intrstat=0x%08x intre=0x%08x intrd=0x%08x\n",
|
|
OREAD4(sc, OHCI_INTERRUPT_STATUS),
|
|
OREAD4(sc, OHCI_INTERRUPT_ENABLE),
|
|
OREAD4(sc, OHCI_INTERRUPT_DISABLE)));
|
|
DPRINTF((" hcca=0x%08x percur=0x%08x ctrlhd=0x%08x\n",
|
|
OREAD4(sc, OHCI_HCCA),
|
|
OREAD4(sc, OHCI_PERIOD_CURRENT_ED),
|
|
OREAD4(sc, OHCI_CONTROL_HEAD_ED)));
|
|
DPRINTF((" ctrlcur=0x%08x bulkhd=0x%08x bulkcur=0x%08x\n",
|
|
OREAD4(sc, OHCI_CONTROL_CURRENT_ED),
|
|
OREAD4(sc, OHCI_BULK_HEAD_ED),
|
|
OREAD4(sc, OHCI_BULK_CURRENT_ED)));
|
|
DPRINTF((" done=0x%08x fmival=0x%08x fmrem=0x%08x\n",
|
|
OREAD4(sc, OHCI_DONE_HEAD),
|
|
OREAD4(sc, OHCI_FM_INTERVAL),
|
|
OREAD4(sc, OHCI_FM_REMAINING)));
|
|
DPRINTF((" fmnum=0x%08x perst=0x%08x lsthrs=0x%08x\n",
|
|
OREAD4(sc, OHCI_FM_NUMBER),
|
|
OREAD4(sc, OHCI_PERIODIC_START),
|
|
OREAD4(sc, OHCI_LS_THRESHOLD)));
|
|
DPRINTF((" desca=0x%08x descb=0x%08x stat=0x%08x\n",
|
|
OREAD4(sc, OHCI_RH_DESCRIPTOR_A),
|
|
OREAD4(sc, OHCI_RH_DESCRIPTOR_B),
|
|
OREAD4(sc, OHCI_RH_STATUS)));
|
|
DPRINTF((" port1=0x%08x port2=0x%08x\n",
|
|
OREAD4(sc, OHCI_RH_PORT_STATUS(1)),
|
|
OREAD4(sc, OHCI_RH_PORT_STATUS(2))));
|
|
DPRINTF((" HCCA: frame_number=0x%04x done_head=0x%08x\n",
|
|
le32toh(sc->sc_hcca->hcca_frame_number),
|
|
le32toh(sc->sc_hcca->hcca_done_head)));
|
|
}
|
|
#endif
|
|
|
|
Static int ohci_intr1(ohci_softc_t *);
|
|
|
|
int
|
|
ohci_intr(void *p)
|
|
{
|
|
ohci_softc_t *sc = p;
|
|
|
|
if (sc == NULL || sc->sc_dying)
|
|
return (0);
|
|
|
|
/* If we get an interrupt while polling, then just ignore it. */
|
|
if (sc->sc_bus.use_polling) {
|
|
#ifdef DIAGNOSTIC
|
|
printf("ohci_intr: ignored interrupt while polling\n");
|
|
#endif
|
|
return (0);
|
|
}
|
|
|
|
return (ohci_intr1(sc));
|
|
}
|
|
|
|
Static int
|
|
ohci_intr1(ohci_softc_t *sc)
|
|
{
|
|
u_int32_t intrs, eintrs;
|
|
ohci_physaddr_t done;
|
|
|
|
DPRINTFN(14,("ohci_intr1: enter\n"));
|
|
|
|
/* In case the interrupt occurs before initialization has completed. */
|
|
if (sc == NULL || sc->sc_hcca == NULL) {
|
|
#ifdef DIAGNOSTIC
|
|
printf("ohci_intr: sc->sc_hcca == NULL\n");
|
|
#endif
|
|
return (0);
|
|
}
|
|
|
|
intrs = 0;
|
|
done = le32toh(sc->sc_hcca->hcca_done_head);
|
|
|
|
/* The LSb of done is used to inform the HC Driver that an interrupt
|
|
* condition exists for both the Done list and for another event
|
|
* recorded in HcInterruptStatus. On an interrupt from the HC, the HC
|
|
* Driver checks the HccaDoneHead Value. If this value is 0, then the
|
|
* interrupt was caused by other than the HccaDoneHead update and the
|
|
* HcInterruptStatus register needs to be accessed to determine that
|
|
* exact interrupt cause. If HccaDoneHead is nonzero, then a Done list
|
|
* update interrupt is indicated and if the LSb of done is nonzero,
|
|
* then an additional interrupt event is indicated and
|
|
* HcInterruptStatus should be checked to determine its cause.
|
|
*/
|
|
if (done != 0) {
|
|
if (done & ~OHCI_DONE_INTRS)
|
|
intrs = OHCI_WDH;
|
|
if (done & OHCI_DONE_INTRS) {
|
|
intrs |= OREAD4(sc, OHCI_INTERRUPT_STATUS);
|
|
done &= ~OHCI_DONE_INTRS;
|
|
}
|
|
sc->sc_hcca->hcca_done_head = 0;
|
|
} else
|
|
intrs = OREAD4(sc, OHCI_INTERRUPT_STATUS) & ~OHCI_WDH;
|
|
|
|
if (intrs == 0) /* nothing to be done (PCI shared interrupt) */
|
|
return (0);
|
|
|
|
intrs &= ~OHCI_MIE;
|
|
OWRITE4(sc, OHCI_INTERRUPT_STATUS, intrs); /* Acknowledge */
|
|
eintrs = intrs & sc->sc_eintrs;
|
|
if (!eintrs)
|
|
return (0);
|
|
|
|
sc->sc_bus.intr_context++;
|
|
sc->sc_bus.no_intrs++;
|
|
DPRINTFN(7, ("ohci_intr: sc=%p intrs=0x%x(0x%x) eintrs=0x%x\n",
|
|
sc, (u_int)intrs, OREAD4(sc, OHCI_INTERRUPT_STATUS),
|
|
(u_int)eintrs));
|
|
|
|
if (eintrs & OHCI_SO) {
|
|
sc->sc_overrun_cnt++;
|
|
if (usbd_ratecheck(&sc->sc_overrun_ntc)) {
|
|
printf("%s: %u scheduling overruns\n",
|
|
USBDEVNAME(sc->sc_bus.bdev), sc->sc_overrun_cnt);
|
|
sc->sc_overrun_cnt = 0;
|
|
}
|
|
/* XXX do what */
|
|
eintrs &= ~OHCI_SO;
|
|
}
|
|
if (eintrs & OHCI_WDH) {
|
|
ohci_add_done(sc, done &~ OHCI_DONE_INTRS);
|
|
usb_schedsoftintr(&sc->sc_bus);
|
|
eintrs &= ~OHCI_WDH;
|
|
}
|
|
if (eintrs & OHCI_RD) {
|
|
printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev));
|
|
/* XXX process resume detect */
|
|
}
|
|
if (eintrs & OHCI_UE) {
|
|
printf("%s: unrecoverable error, controller halted\n",
|
|
USBDEVNAME(sc->sc_bus.bdev));
|
|
OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET);
|
|
/* XXX what else */
|
|
}
|
|
if (eintrs & OHCI_RHSC) {
|
|
ohci_rhsc(sc, sc->sc_intrxfer);
|
|
/*
|
|
* Disable RHSC interrupt for now, because it will be
|
|
* on until the port has been reset.
|
|
*/
|
|
ohci_rhsc_able(sc, 0);
|
|
/* Do not allow RHSC interrupts > 1 per second */
|
|
usb_callout(sc->sc_tmo_rhsc, hz, ohci_rhsc_enable, sc);
|
|
eintrs &= ~OHCI_RHSC;
|
|
}
|
|
|
|
sc->sc_bus.intr_context--;
|
|
|
|
if (eintrs != 0) {
|
|
/* Block unprocessed interrupts. XXX */
|
|
OWRITE4(sc, OHCI_INTERRUPT_DISABLE, eintrs);
|
|
sc->sc_eintrs &= ~eintrs;
|
|
printf("%s: blocking intrs 0x%x\n",
|
|
USBDEVNAME(sc->sc_bus.bdev), eintrs);
|
|
}
|
|
|
|
return (1);
|
|
}
|
|
|
|
void
|
|
ohci_rhsc_able(ohci_softc_t *sc, int on)
|
|
{
|
|
DPRINTFN(4, ("ohci_rhsc_able: on=%d\n", on));
|
|
if (on) {
|
|
sc->sc_eintrs |= OHCI_RHSC;
|
|
OWRITE4(sc, OHCI_INTERRUPT_ENABLE, OHCI_RHSC);
|
|
} else {
|
|
sc->sc_eintrs &= ~OHCI_RHSC;
|
|
OWRITE4(sc, OHCI_INTERRUPT_DISABLE, OHCI_RHSC);
|
|
}
|
|
}
|
|
|
|
void
|
|
ohci_rhsc_enable(void *v_sc)
|
|
{
|
|
ohci_softc_t *sc = v_sc;
|
|
int s;
|
|
|
|
s = splhardusb();
|
|
ohci_rhsc_able(sc, 1);
|
|
splx(s);
|
|
}
|
|
|
|
#ifdef USB_DEBUG
|
|
char *ohci_cc_strs[] = {
|
|
"NO_ERROR",
|
|
"CRC",
|
|
"BIT_STUFFING",
|
|
"DATA_TOGGLE_MISMATCH",
|
|
"STALL",
|
|
"DEVICE_NOT_RESPONDING",
|
|
"PID_CHECK_FAILURE",
|
|
"UNEXPECTED_PID",
|
|
"DATA_OVERRUN",
|
|
"DATA_UNDERRUN",
|
|
"BUFFER_OVERRUN",
|
|
"BUFFER_UNDERRUN",
|
|
"reserved",
|
|
"reserved",
|
|
"NOT_ACCESSED",
|
|
"NOT_ACCESSED"
|
|
};
|
|
#endif
|
|
|
|
void
|
|
ohci_add_done(ohci_softc_t *sc, ohci_physaddr_t done)
|
|
{
|
|
ohci_soft_itd_t *sitd, *sidone, **ip;
|
|
ohci_soft_td_t *std, *sdone, **p;
|
|
|
|
/* Reverse the done list. */
|
|
for (sdone = NULL, sidone = NULL; done != 0; ) {
|
|
std = ohci_hash_find_td(sc, done);
|
|
if (std != NULL) {
|
|
std->dnext = sdone;
|
|
done = le32toh(std->td.td_nexttd);
|
|
sdone = std;
|
|
DPRINTFN(10,("add TD %p\n", std));
|
|
continue;
|
|
}
|
|
sitd = ohci_hash_find_itd(sc, done);
|
|
if (sitd != NULL) {
|
|
sitd->dnext = sidone;
|
|
done = le32toh(sitd->itd.itd_nextitd);
|
|
sidone = sitd;
|
|
DPRINTFN(5,("add ITD %p\n", sitd));
|
|
continue;
|
|
}
|
|
panic("ohci_add_done: addr 0x%08lx not found", (u_long)done);
|
|
}
|
|
|
|
/* sdone & sidone now hold the done lists. */
|
|
/* Put them on the already processed lists. */
|
|
for (p = &sc->sc_sdone; *p != NULL; p = &(*p)->dnext)
|
|
;
|
|
*p = sdone;
|
|
for (ip = &sc->sc_sidone; *ip != NULL; ip = &(*ip)->dnext)
|
|
;
|
|
*ip = sidone;
|
|
}
|
|
|
|
void
|
|
ohci_softintr(void *v)
|
|
{
|
|
ohci_softc_t *sc = v;
|
|
ohci_soft_itd_t *sitd, *sidone, *sitdnext;
|
|
ohci_soft_td_t *std, *sdone, *stdnext;
|
|
usbd_xfer_handle xfer;
|
|
struct ohci_pipe *opipe;
|
|
int len, cc, s;
|
|
|
|
DPRINTFN(10,("ohci_softintr: enter\n"));
|
|
|
|
sc->sc_bus.intr_context++;
|
|
|
|
s = splhardusb();
|
|
sdone = sc->sc_sdone;
|
|
sc->sc_sdone = NULL;
|
|
sidone = sc->sc_sidone;
|
|
sc->sc_sidone = NULL;
|
|
splx(s);
|
|
|
|
DPRINTFN(10,("ohci_softintr: sdone=%p sidone=%p\n", sdone, sidone));
|
|
|
|
#ifdef USB_DEBUG
|
|
if (ohcidebug > 10) {
|
|
DPRINTF(("ohci_process_done: TD done:\n"));
|
|
ohci_dump_tds(sdone);
|
|
}
|
|
#endif
|
|
|
|
for (std = sdone; std; std = stdnext) {
|
|
xfer = std->xfer;
|
|
stdnext = std->dnext;
|
|
DPRINTFN(10, ("ohci_process_done: std=%p xfer=%p hcpriv=%p\n",
|
|
std, xfer, (xfer ? xfer->hcpriv : NULL)));
|
|
if (xfer == NULL || (std->flags & OHCI_TD_HANDLED)) {
|
|
/*
|
|
* xfer == NULL: There seems to be no xfer associated
|
|
* with this TD. It is tailp that happened to end up on
|
|
* the done queue.
|
|
* flags & OHCI_TD_HANDLED: The TD has already been
|
|
* handled by process_done and should not be done again.
|
|
* Shouldn't happen, but some chips are broken(?).
|
|
*/
|
|
continue;
|
|
}
|
|
if (xfer->status == USBD_CANCELLED ||
|
|
xfer->status == USBD_TIMEOUT) {
|
|
DPRINTF(("ohci_process_done: cancel/timeout %p\n",
|
|
xfer));
|
|
/* Handled by abort routine. */
|
|
continue;
|
|
}
|
|
usb_uncallout(xfer->timeout_handle, ohci_timeout, xfer);
|
|
|
|
len = std->len;
|
|
if (std->td.td_cbp != 0)
|
|
len -= le32toh(std->td.td_be) -
|
|
le32toh(std->td.td_cbp) + 1;
|
|
DPRINTFN(10, ("ohci_process_done: len=%d, flags=0x%x\n", len,
|
|
std->flags));
|
|
if (std->flags & OHCI_ADD_LEN)
|
|
xfer->actlen += len;
|
|
|
|
cc = OHCI_TD_GET_CC(le32toh(std->td.td_flags));
|
|
if (cc == OHCI_CC_NO_ERROR) {
|
|
if (std->flags & OHCI_CALL_DONE) {
|
|
xfer->status = USBD_NORMAL_COMPLETION;
|
|
s = splusb();
|
|
usb_transfer_complete(xfer);
|
|
splx(s);
|
|
}
|
|
ohci_free_std(sc, std);
|
|
} else {
|
|
/*
|
|
* Endpoint is halted. First unlink all the TDs
|
|
* belonging to the failed transfer, and then restart
|
|
* the endpoint.
|
|
*/
|
|
ohci_soft_td_t *p, *n;
|
|
opipe = (struct ohci_pipe *)xfer->pipe;
|
|
|
|
DPRINTFN(15,("ohci_process_done: error cc=%d (%s)\n",
|
|
OHCI_TD_GET_CC(le32toh(std->td.td_flags)),
|
|
ohci_cc_strs[OHCI_TD_GET_CC(le32toh(std->td.td_flags))]));
|
|
|
|
|
|
/* Mark all the TDs in the done queue for the current
|
|
* xfer as handled
|
|
*/
|
|
for (p = stdnext; p; p = p->dnext) {
|
|
if (p->xfer == xfer)
|
|
p->flags |= OHCI_TD_HANDLED;
|
|
}
|
|
|
|
/* remove TDs */
|
|
for (p = std; p->xfer == xfer; p = n) {
|
|
n = p->nexttd;
|
|
ohci_free_std(sc, p);
|
|
}
|
|
|
|
/* clear halt */
|
|
opipe->sed->ed.ed_headp = htole32(p->physaddr);
|
|
OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_CLF);
|
|
|
|
if (cc == OHCI_CC_STALL)
|
|
xfer->status = USBD_STALLED;
|
|
else
|
|
xfer->status = USBD_IOERROR;
|
|
s = splusb();
|
|
usb_transfer_complete(xfer);
|
|
splx(s);
|
|
}
|
|
}
|
|
|
|
#ifdef USB_DEBUG
|
|
if (ohcidebug > 10) {
|
|
DPRINTF(("ohci_softintr: ITD done:\n"));
|
|
ohci_dump_itds(sidone);
|
|
}
|
|
#endif
|
|
|
|
for (sitd = sidone; sitd != NULL; sitd = sitdnext) {
|
|
xfer = sitd->xfer;
|
|
sitdnext = sitd->dnext;
|
|
sitd->flags |= OHCI_ITD_INTFIN;
|
|
DPRINTFN(1, ("ohci_process_done: sitd=%p xfer=%p hcpriv=%p\n",
|
|
sitd, xfer, xfer ? xfer->hcpriv : 0));
|
|
if (xfer == NULL)
|
|
continue;
|
|
if (xfer->status == USBD_CANCELLED ||
|
|
xfer->status == USBD_TIMEOUT) {
|
|
DPRINTF(("ohci_process_done: cancel/timeout %p\n",
|
|
xfer));
|
|
/* Handled by abort routine. */
|
|
continue;
|
|
}
|
|
if (xfer->pipe)
|
|
if (xfer->pipe->aborting)
|
|
continue; /*Ignore.*/
|
|
#ifdef DIAGNOSTIC
|
|
if (sitd->isdone)
|
|
printf("ohci_softintr: sitd=%p is done\n", sitd);
|
|
sitd->isdone = 1;
|
|
#endif
|
|
opipe = (struct ohci_pipe *)xfer->pipe;
|
|
if (opipe->aborting)
|
|
continue;
|
|
|
|
cc = OHCI_ITD_GET_CC(le32toh(sitd->itd.itd_flags));
|
|
if (cc == OHCI_CC_NO_ERROR) {
|
|
/* XXX compute length for input */
|
|
if (sitd->flags & OHCI_CALL_DONE) {
|
|
opipe->u.iso.inuse -= xfer->nframes;
|
|
/* XXX update frlengths with actual length */
|
|
/* XXX xfer->actlen = actlen; */
|
|
xfer->status = USBD_NORMAL_COMPLETION;
|
|
s = splusb();
|
|
usb_transfer_complete(xfer);
|
|
splx(s);
|
|
}
|
|
} else {
|
|
/* XXX Do more */
|
|
xfer->status = USBD_IOERROR;
|
|
s = splusb();
|
|
usb_transfer_complete(xfer);
|
|
splx(s);
|
|
}
|
|
}
|
|
|
|
#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--;
|
|
DPRINTFN(10,("ohci_softintr: done:\n"));
|
|
}
|
|
|
|
void
|
|
ohci_device_ctrl_done(usbd_xfer_handle xfer)
|
|
{
|
|
DPRINTFN(10,("ohci_device_ctrl_done: xfer=%p\n", xfer));
|
|
|
|
#ifdef DIAGNOSTIC
|
|
if (!(xfer->rqflags & URQ_REQUEST)) {
|
|
panic("ohci_device_ctrl_done: not a request");
|
|
}
|
|
#endif
|
|
xfer->hcpriv = NULL;
|
|
}
|
|
|
|
void
|
|
ohci_device_intr_done(usbd_xfer_handle xfer)
|
|
{
|
|
struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe;
|
|
ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus;
|
|
ohci_soft_ed_t *sed = opipe->sed;
|
|
ohci_soft_td_t *data, *tail;
|
|
|
|
|
|
DPRINTFN(10,("ohci_device_intr_done: xfer=%p, actlen=%d\n",
|
|
xfer, xfer->actlen));
|
|
|
|
xfer->hcpriv = NULL;
|
|
|
|
if (xfer->pipe->repeat) {
|
|
data = opipe->tail.td;
|
|
tail = ohci_alloc_std(sc); /* XXX should reuse TD */
|
|
if (tail == NULL) {
|
|
xfer->status = USBD_NOMEM;
|
|
return;
|
|
}
|
|
tail->xfer = NULL;
|
|
|
|
data->td.td_flags = htole32(
|
|
OHCI_TD_IN | OHCI_TD_NOCC |
|
|
OHCI_TD_SET_DI(1) | OHCI_TD_TOGGLE_CARRY);
|
|
if (xfer->flags & USBD_SHORT_XFER_OK)
|
|
data->td.td_flags |= htole32(OHCI_TD_R);
|
|
data->td.td_cbp = htole32(DMAADDR(&xfer->dmabuf, 0));
|
|
data->nexttd = tail;
|
|
data->td.td_nexttd = htole32(tail->physaddr);
|
|
data->td.td_be = htole32(le32toh(data->td.td_cbp) +
|
|
xfer->length - 1);
|
|
data->len = xfer->length;
|
|
data->xfer = xfer;
|
|
data->flags = OHCI_CALL_DONE | OHCI_ADD_LEN;
|
|
xfer->hcpriv = data;
|
|
xfer->actlen = 0;
|
|
|
|
sed->ed.ed_tailp = htole32(tail->physaddr);
|
|
opipe->tail.td = tail;
|
|
}
|
|
}
|
|
|
|
void
|
|
ohci_device_bulk_done(usbd_xfer_handle xfer)
|
|
{
|
|
DPRINTFN(10,("ohci_device_bulk_done: xfer=%p, actlen=%d\n",
|
|
xfer, xfer->actlen));
|
|
|
|
xfer->hcpriv = NULL;
|
|
}
|
|
|
|
void
|
|
ohci_rhsc(ohci_softc_t *sc, usbd_xfer_handle xfer)
|
|
{
|
|
usbd_pipe_handle pipe;
|
|
u_char *p;
|
|
int i, m;
|
|
int hstatus;
|
|
|
|
hstatus = OREAD4(sc, OHCI_RH_STATUS);
|
|
DPRINTF(("ohci_rhsc: sc=%p xfer=%p hstatus=0x%08x\n",
|
|
sc, xfer, hstatus));
|
|
|
|
if (xfer == NULL) {
|
|
/* Just ignore the change. */
|
|
return;
|
|
}
|
|
|
|
pipe = xfer->pipe;
|
|
|
|
p = KERNADDR(&xfer->dmabuf, 0);
|
|
m = min(sc->sc_noport, xfer->length * 8 - 1);
|
|
memset(p, 0, xfer->length);
|
|
for (i = 1; i <= m; i++) {
|
|
/* Pick out CHANGE bits from the status reg. */
|
|
if (OREAD4(sc, OHCI_RH_PORT_STATUS(i)) >> 16)
|
|
p[i/8] |= 1 << (i%8);
|
|
}
|
|
DPRINTF(("ohci_rhsc: change=0x%02x\n", *p));
|
|
xfer->actlen = xfer->length;
|
|
xfer->status = USBD_NORMAL_COMPLETION;
|
|
|
|
usb_transfer_complete(xfer);
|
|
}
|
|
|
|
void
|
|
ohci_root_intr_done(usbd_xfer_handle xfer)
|
|
{
|
|
xfer->hcpriv = NULL;
|
|
}
|
|
|
|
void
|
|
ohci_root_ctrl_done(usbd_xfer_handle xfer)
|
|
{
|
|
xfer->hcpriv = NULL;
|
|
}
|
|
|
|
/*
|
|
* Wait here until controller claims to have an interrupt.
|
|
* Then call ohci_intr and return. Use timeout to avoid waiting
|
|
* too long.
|
|
*/
|
|
void
|
|
ohci_waitintr(ohci_softc_t *sc, usbd_xfer_handle xfer)
|
|
{
|
|
int timo = xfer->timeout;
|
|
int usecs;
|
|
u_int32_t intrs;
|
|
|
|
xfer->status = USBD_IN_PROGRESS;
|
|
for (usecs = timo * 1000000 / hz; usecs > 0; usecs -= 1000) {
|
|
usb_delay_ms(&sc->sc_bus, 1);
|
|
if (sc->sc_dying)
|
|
break;
|
|
intrs = OREAD4(sc, OHCI_INTERRUPT_STATUS) & sc->sc_eintrs;
|
|
DPRINTFN(15,("ohci_waitintr: 0x%04x\n", intrs));
|
|
#ifdef USB_DEBUG
|
|
if (ohcidebug > 15)
|
|
ohci_dumpregs(sc);
|
|
#endif
|
|
if (intrs) {
|
|
ohci_intr1(sc);
|
|
if (xfer->status != USBD_IN_PROGRESS)
|
|
return;
|
|
}
|
|
}
|
|
|
|
/* Timeout */
|
|
DPRINTF(("ohci_waitintr: timeout\n"));
|
|
xfer->status = USBD_TIMEOUT;
|
|
usb_transfer_complete(xfer);
|
|
/* XXX should free TD */
|
|
}
|
|
|
|
void
|
|
ohci_poll(struct usbd_bus *bus)
|
|
{
|
|
ohci_softc_t *sc = (ohci_softc_t *)bus;
|
|
#ifdef USB_DEBUG
|
|
static int last;
|
|
int new;
|
|
new = OREAD4(sc, OHCI_INTERRUPT_STATUS);
|
|
if (new != last) {
|
|
DPRINTFN(10,("ohci_poll: intrs=0x%04x\n", new));
|
|
last = new;
|
|
}
|
|
#endif
|
|
|
|
if (OREAD4(sc, OHCI_INTERRUPT_STATUS) & sc->sc_eintrs)
|
|
ohci_intr1(sc);
|
|
}
|
|
|
|
usbd_status
|
|
ohci_device_request(usbd_xfer_handle xfer)
|
|
{
|
|
struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe;
|
|
usb_device_request_t *req = &xfer->request;
|
|
usbd_device_handle dev = opipe->pipe.device;
|
|
ohci_softc_t *sc = (ohci_softc_t *)dev->bus;
|
|
int addr = dev->address;
|
|
ohci_soft_td_t *setup, *stat, *next, *tail;
|
|
ohci_soft_ed_t *sed;
|
|
int isread;
|
|
int len;
|
|
usbd_status err;
|
|
int s;
|
|
|
|
isread = req->bmRequestType & UT_READ;
|
|
len = UGETW(req->wLength);
|
|
|
|
DPRINTFN(3,("ohci_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), len, addr,
|
|
opipe->pipe.endpoint->edesc->bEndpointAddress));
|
|
|
|
setup = opipe->tail.td;
|
|
stat = ohci_alloc_std(sc);
|
|
if (stat == NULL) {
|
|
err = USBD_NOMEM;
|
|
goto bad1;
|
|
}
|
|
tail = ohci_alloc_std(sc);
|
|
if (tail == NULL) {
|
|
err = USBD_NOMEM;
|
|
goto bad2;
|
|
}
|
|
tail->xfer = NULL;
|
|
|
|
sed = opipe->sed;
|
|
opipe->u.ctl.length = len;
|
|
|
|
/* Update device address and length since they may have changed
|
|
during the setup of the control pipe in usbd_new_device(). */
|
|
/* XXX This only needs to be done once, but it's too early in open. */
|
|
/* XXXX Should not touch ED here! */
|
|
sed->ed.ed_flags = htole32(
|
|
(le32toh(sed->ed.ed_flags) & ~(OHCI_ED_ADDRMASK | OHCI_ED_MAXPMASK)) |
|
|
OHCI_ED_SET_FA(addr) |
|
|
OHCI_ED_SET_MAXP(UGETW(opipe->pipe.endpoint->edesc->wMaxPacketSize)));
|
|
|
|
next = stat;
|
|
|
|
/* Set up data transaction */
|
|
if (len != 0) {
|
|
ohci_soft_td_t *std = stat;
|
|
|
|
err = ohci_alloc_std_chain(opipe, sc, len, isread, xfer,
|
|
std, &stat);
|
|
stat = stat->nexttd; /* point at free TD */
|
|
if (err)
|
|
goto bad3;
|
|
/* Start toggle at 1 and then use the carried toggle. */
|
|
std->td.td_flags &= htole32(~OHCI_TD_TOGGLE_MASK);
|
|
std->td.td_flags |= htole32(OHCI_TD_TOGGLE_1);
|
|
}
|
|
|
|
memcpy(KERNADDR(&opipe->u.ctl.reqdma, 0), req, sizeof *req);
|
|
|
|
setup->td.td_flags = htole32(OHCI_TD_SETUP | OHCI_TD_NOCC |
|
|
OHCI_TD_TOGGLE_0 | OHCI_TD_NOINTR);
|
|
setup->td.td_cbp = htole32(DMAADDR(&opipe->u.ctl.reqdma, 0));
|
|
setup->nexttd = next;
|
|
setup->td.td_nexttd = htole32(next->physaddr);
|
|
setup->td.td_be = htole32(le32toh(setup->td.td_cbp) + sizeof *req - 1);
|
|
setup->len = 0;
|
|
setup->xfer = xfer;
|
|
setup->flags = 0;
|
|
xfer->hcpriv = setup;
|
|
|
|
stat->td.td_flags = htole32(
|
|
(isread ? OHCI_TD_OUT : OHCI_TD_IN) |
|
|
OHCI_TD_NOCC | OHCI_TD_TOGGLE_1 | OHCI_TD_SET_DI(1));
|
|
stat->td.td_cbp = 0;
|
|
stat->nexttd = tail;
|
|
stat->td.td_nexttd = htole32(tail->physaddr);
|
|
stat->td.td_be = 0;
|
|
stat->flags = OHCI_CALL_DONE;
|
|
stat->len = 0;
|
|
stat->xfer = xfer;
|
|
|
|
#ifdef USB_DEBUG
|
|
if (ohcidebug > 5) {
|
|
DPRINTF(("ohci_device_request:\n"));
|
|
ohci_dump_ed(sed);
|
|
ohci_dump_tds(setup);
|
|
}
|
|
#endif
|
|
|
|
/* Insert ED in schedule */
|
|
s = splusb();
|
|
sed->ed.ed_tailp = htole32(tail->physaddr);
|
|
opipe->tail.td = tail;
|
|
OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_CLF);
|
|
if (xfer->timeout && !sc->sc_bus.use_polling) {
|
|
usb_callout(xfer->timeout_handle, MS_TO_TICKS(xfer->timeout),
|
|
ohci_timeout, xfer);
|
|
}
|
|
splx(s);
|
|
|
|
#ifdef USB_DEBUG
|
|
if (ohcidebug > 20) {
|
|
delay(10000);
|
|
DPRINTF(("ohci_device_request: status=%x\n",
|
|
OREAD4(sc, OHCI_COMMAND_STATUS)));
|
|
ohci_dumpregs(sc);
|
|
printf("ctrl head:\n");
|
|
ohci_dump_ed(sc->sc_ctrl_head);
|
|
printf("sed:\n");
|
|
ohci_dump_ed(sed);
|
|
ohci_dump_tds(setup);
|
|
}
|
|
#endif
|
|
|
|
return (USBD_NORMAL_COMPLETION);
|
|
|
|
bad3:
|
|
ohci_free_std(sc, tail);
|
|
bad2:
|
|
ohci_free_std(sc, stat);
|
|
bad1:
|
|
return (err);
|
|
}
|
|
|
|
/*
|
|
* Add an ED to the schedule. Called at splusb().
|
|
*/
|
|
void
|
|
ohci_add_ed(ohci_soft_ed_t *sed, ohci_soft_ed_t *head)
|
|
{
|
|
DPRINTFN(8,("ohci_add_ed: sed=%p head=%p\n", sed, head));
|
|
|
|
SPLUSBCHECK;
|
|
sed->next = head->next;
|
|
sed->ed.ed_nexted = head->ed.ed_nexted;
|
|
head->next = sed;
|
|
head->ed.ed_nexted = htole32(sed->physaddr);
|
|
}
|
|
|
|
/*
|
|
* Remove an ED from the schedule. Called at splusb().
|
|
*/
|
|
void
|
|
ohci_rem_ed(ohci_soft_ed_t *sed, ohci_soft_ed_t *head)
|
|
{
|
|
ohci_soft_ed_t *p;
|
|
|
|
SPLUSBCHECK;
|
|
|
|
/* XXX */
|
|
for (p = head; p != NULL && p->next != sed; p = p->next)
|
|
;
|
|
if (p == NULL)
|
|
panic("ohci_rem_ed: ED not found");
|
|
p->next = sed->next;
|
|
p->ed.ed_nexted = sed->ed.ed_nexted;
|
|
}
|
|
|
|
/*
|
|
* When a transfer is completed the TD is added to the done queue by
|
|
* the host controller. This queue is the processed by software.
|
|
* Unfortunately the queue contains the physical address of the TD
|
|
* and we have no simple way to translate this back to a kernel address.
|
|
* To make the translation possible (and fast) we use a hash table of
|
|
* TDs currently in the schedule. The physical address is used as the
|
|
* hash value.
|
|
*/
|
|
|
|
#define HASH(a) (((a) >> 4) % OHCI_HASH_SIZE)
|
|
/* Called at splusb() */
|
|
void
|
|
ohci_hash_add_td(ohci_softc_t *sc, ohci_soft_td_t *std)
|
|
{
|
|
int h = HASH(std->physaddr);
|
|
|
|
SPLUSBCHECK;
|
|
|
|
LIST_INSERT_HEAD(&sc->sc_hash_tds[h], std, hnext);
|
|
}
|
|
|
|
/* Called at splusb() */
|
|
void
|
|
ohci_hash_rem_td(ohci_softc_t *sc, ohci_soft_td_t *std)
|
|
{
|
|
SPLUSBCHECK;
|
|
|
|
LIST_REMOVE(std, hnext);
|
|
}
|
|
|
|
ohci_soft_td_t *
|
|
ohci_hash_find_td(ohci_softc_t *sc, ohci_physaddr_t a)
|
|
{
|
|
int h = HASH(a);
|
|
ohci_soft_td_t *std;
|
|
|
|
/* if these are present they should be masked out at an earlier
|
|
* stage.
|
|
*/
|
|
KASSERT((a&~OHCI_HEADMASK) == 0, ("%s: 0x%b has lower bits set\n",
|
|
USBDEVNAME(sc->sc_bus.bdev),
|
|
(int) a, "\20\1HALT\2TOGGLE"));
|
|
|
|
for (std = LIST_FIRST(&sc->sc_hash_tds[h]);
|
|
std != NULL;
|
|
std = LIST_NEXT(std, hnext))
|
|
if (std->physaddr == a)
|
|
return (std);
|
|
|
|
DPRINTF(("%s: ohci_hash_find_td: addr 0x%08lx not found\n",
|
|
USBDEVNAME(sc->sc_bus.bdev), (u_long) a));
|
|
return (NULL);
|
|
}
|
|
|
|
/* Called at splusb() */
|
|
void
|
|
ohci_hash_add_itd(ohci_softc_t *sc, ohci_soft_itd_t *sitd)
|
|
{
|
|
int h = HASH(sitd->physaddr);
|
|
|
|
SPLUSBCHECK;
|
|
|
|
DPRINTFN(10,("ohci_hash_add_itd: sitd=%p physaddr=0x%08lx\n",
|
|
sitd, (u_long)sitd->physaddr));
|
|
|
|
LIST_INSERT_HEAD(&sc->sc_hash_itds[h], sitd, hnext);
|
|
}
|
|
|
|
/* Called at splusb() */
|
|
void
|
|
ohci_hash_rem_itd(ohci_softc_t *sc, ohci_soft_itd_t *sitd)
|
|
{
|
|
SPLUSBCHECK;
|
|
|
|
DPRINTFN(10,("ohci_hash_rem_itd: sitd=%p physaddr=0x%08lx\n",
|
|
sitd, (u_long)sitd->physaddr));
|
|
|
|
LIST_REMOVE(sitd, hnext);
|
|
}
|
|
|
|
ohci_soft_itd_t *
|
|
ohci_hash_find_itd(ohci_softc_t *sc, ohci_physaddr_t a)
|
|
{
|
|
int h = HASH(a);
|
|
ohci_soft_itd_t *sitd;
|
|
|
|
for (sitd = LIST_FIRST(&sc->sc_hash_itds[h]);
|
|
sitd != NULL;
|
|
sitd = LIST_NEXT(sitd, hnext))
|
|
if (sitd->physaddr == a)
|
|
return (sitd);
|
|
return (NULL);
|
|
}
|
|
|
|
void
|
|
ohci_timeout(void *addr)
|
|
{
|
|
struct ohci_xfer *oxfer = addr;
|
|
struct ohci_pipe *opipe = (struct ohci_pipe *)oxfer->xfer.pipe;
|
|
ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus;
|
|
|
|
DPRINTF(("ohci_timeout: oxfer=%p\n", oxfer));
|
|
|
|
if (sc->sc_dying) {
|
|
ohci_abort_xfer(&oxfer->xfer, USBD_TIMEOUT);
|
|
return;
|
|
}
|
|
|
|
/* Execute the abort in a process context. */
|
|
usb_init_task(&oxfer->abort_task, ohci_timeout_task, addr);
|
|
usb_add_task(oxfer->xfer.pipe->device, &oxfer->abort_task);
|
|
}
|
|
|
|
void
|
|
ohci_timeout_task(void *addr)
|
|
{
|
|
usbd_xfer_handle xfer = addr;
|
|
int s;
|
|
|
|
DPRINTF(("ohci_timeout_task: xfer=%p\n", xfer));
|
|
|
|
s = splusb();
|
|
ohci_abort_xfer(xfer, USBD_TIMEOUT);
|
|
splx(s);
|
|
}
|
|
|
|
#ifdef USB_DEBUG
|
|
void
|
|
ohci_dump_tds(ohci_soft_td_t *std)
|
|
{
|
|
for (; std; std = std->nexttd)
|
|
ohci_dump_td(std);
|
|
}
|
|
|
|
void
|
|
ohci_dump_td(ohci_soft_td_t *std)
|
|
{
|
|
char sbuf[128];
|
|
|
|
bitmask_snprintf((u_int32_t)le32toh(std->td.td_flags),
|
|
"\20\23R\24OUT\25IN\31TOG1\32SETTOGGLE",
|
|
sbuf, sizeof(sbuf));
|
|
|
|
printf("TD(%p) at %08lx: %s delay=%d ec=%d cc=%d\ncbp=0x%08lx "
|
|
"nexttd=0x%08lx be=0x%08lx\n",
|
|
std, (u_long)std->physaddr, sbuf,
|
|
OHCI_TD_GET_DI(le32toh(std->td.td_flags)),
|
|
OHCI_TD_GET_EC(le32toh(std->td.td_flags)),
|
|
OHCI_TD_GET_CC(le32toh(std->td.td_flags)),
|
|
(u_long)le32toh(std->td.td_cbp),
|
|
(u_long)le32toh(std->td.td_nexttd),
|
|
(u_long)le32toh(std->td.td_be));
|
|
}
|
|
|
|
void
|
|
ohci_dump_itd(ohci_soft_itd_t *sitd)
|
|
{
|
|
int i;
|
|
|
|
printf("ITD(%p) at %08lx: sf=%d di=%d fc=%d cc=%d\n"
|
|
"bp0=0x%08lx next=0x%08lx be=0x%08lx\n",
|
|
sitd, (u_long)sitd->physaddr,
|
|
OHCI_ITD_GET_SF(le32toh(sitd->itd.itd_flags)),
|
|
OHCI_ITD_GET_DI(le32toh(sitd->itd.itd_flags)),
|
|
OHCI_ITD_GET_FC(le32toh(sitd->itd.itd_flags)),
|
|
OHCI_ITD_GET_CC(le32toh(sitd->itd.itd_flags)),
|
|
(u_long)le32toh(sitd->itd.itd_bp0),
|
|
(u_long)le32toh(sitd->itd.itd_nextitd),
|
|
(u_long)le32toh(sitd->itd.itd_be));
|
|
for (i = 0; i < OHCI_ITD_NOFFSET; i++)
|
|
printf("offs[%d]=0x%04x ", i,
|
|
(u_int)le16toh(sitd->itd.itd_offset[i]));
|
|
printf("\n");
|
|
}
|
|
|
|
void
|
|
ohci_dump_itds(ohci_soft_itd_t *sitd)
|
|
{
|
|
for (; sitd; sitd = sitd->nextitd)
|
|
ohci_dump_itd(sitd);
|
|
}
|
|
|
|
void
|
|
ohci_dump_ed(ohci_soft_ed_t *sed)
|
|
{
|
|
char sbuf[128], sbuf2[128];
|
|
|
|
bitmask_snprintf((u_int32_t)le32toh(sed->ed.ed_flags),
|
|
"\20\14OUT\15IN\16LOWSPEED\17SKIP\20ISO",
|
|
sbuf, sizeof(sbuf));
|
|
bitmask_snprintf((u_int32_t)le32toh(sed->ed.ed_headp),
|
|
"\20\1HALT\2CARRY", sbuf2, sizeof(sbuf2));
|
|
|
|
printf("ED(%p) at 0x%08lx: addr=%d endpt=%d maxp=%d flags=%s\ntailp=0x%08lx "
|
|
"headflags=%s headp=0x%08lx nexted=0x%08lx\n",
|
|
sed, (u_long)sed->physaddr,
|
|
OHCI_ED_GET_FA(le32toh(sed->ed.ed_flags)),
|
|
OHCI_ED_GET_EN(le32toh(sed->ed.ed_flags)),
|
|
OHCI_ED_GET_MAXP(le32toh(sed->ed.ed_flags)), sbuf,
|
|
(u_long)le32toh(sed->ed.ed_tailp), sbuf2,
|
|
(u_long)le32toh(sed->ed.ed_headp),
|
|
(u_long)le32toh(sed->ed.ed_nexted));
|
|
}
|
|
#endif
|
|
|
|
usbd_status
|
|
ohci_open(usbd_pipe_handle pipe)
|
|
{
|
|
usbd_device_handle dev = pipe->device;
|
|
ohci_softc_t *sc = (ohci_softc_t *)dev->bus;
|
|
usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc;
|
|
struct ohci_pipe *opipe = (struct ohci_pipe *)pipe;
|
|
u_int8_t addr = dev->address;
|
|
u_int8_t xfertype = ed->bmAttributes & UE_XFERTYPE;
|
|
ohci_soft_ed_t *sed;
|
|
ohci_soft_td_t *std;
|
|
ohci_soft_itd_t *sitd;
|
|
ohci_physaddr_t tdphys;
|
|
u_int32_t fmt;
|
|
usbd_status err;
|
|
int s;
|
|
int ival;
|
|
|
|
DPRINTFN(1, ("ohci_open: pipe=%p, addr=%d, endpt=%d (%d)\n",
|
|
pipe, addr, ed->bEndpointAddress, sc->sc_addr));
|
|
|
|
if (sc->sc_dying)
|
|
return (USBD_IOERROR);
|
|
|
|
std = NULL;
|
|
sed = NULL;
|
|
|
|
if (addr == sc->sc_addr) {
|
|
switch (ed->bEndpointAddress) {
|
|
case USB_CONTROL_ENDPOINT:
|
|
pipe->methods = &ohci_root_ctrl_methods;
|
|
break;
|
|
case UE_DIR_IN | OHCI_INTR_ENDPT:
|
|
pipe->methods = &ohci_root_intr_methods;
|
|
break;
|
|
default:
|
|
return (USBD_INVAL);
|
|
}
|
|
} else {
|
|
sed = ohci_alloc_sed(sc);
|
|
if (sed == NULL)
|
|
goto bad0;
|
|
opipe->sed = sed;
|
|
if (xfertype == UE_ISOCHRONOUS) {
|
|
sitd = ohci_alloc_sitd(sc);
|
|
if (sitd == NULL)
|
|
goto bad1;
|
|
opipe->tail.itd = sitd;
|
|
opipe->aborting = 0;
|
|
tdphys = sitd->physaddr;
|
|
fmt = OHCI_ED_FORMAT_ISO;
|
|
if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN)
|
|
fmt |= OHCI_ED_DIR_IN;
|
|
else
|
|
fmt |= OHCI_ED_DIR_OUT;
|
|
} else {
|
|
std = ohci_alloc_std(sc);
|
|
if (std == NULL)
|
|
goto bad1;
|
|
opipe->tail.td = std;
|
|
tdphys = std->physaddr;
|
|
fmt = OHCI_ED_FORMAT_GEN | OHCI_ED_DIR_TD;
|
|
}
|
|
sed->ed.ed_flags = htole32(
|
|
OHCI_ED_SET_FA(addr) |
|
|
OHCI_ED_SET_EN(UE_GET_ADDR(ed->bEndpointAddress)) |
|
|
(dev->speed == USB_SPEED_LOW ? OHCI_ED_SPEED : 0) |
|
|
fmt |
|
|
OHCI_ED_SET_MAXP(UGETW(ed->wMaxPacketSize)));
|
|
sed->ed.ed_headp = sed->ed.ed_tailp = htole32(tdphys);
|
|
|
|
switch (xfertype) {
|
|
case UE_CONTROL:
|
|
pipe->methods = &ohci_device_ctrl_methods;
|
|
err = usb_allocmem(&sc->sc_bus,
|
|
sizeof(usb_device_request_t),
|
|
0, &opipe->u.ctl.reqdma);
|
|
if (err)
|
|
goto bad;
|
|
s = splusb();
|
|
ohci_add_ed(sed, sc->sc_ctrl_head);
|
|
splx(s);
|
|
break;
|
|
case UE_INTERRUPT:
|
|
pipe->methods = &ohci_device_intr_methods;
|
|
ival = pipe->interval;
|
|
if (ival == USBD_DEFAULT_INTERVAL)
|
|
ival = ed->bInterval;
|
|
return (ohci_device_setintr(sc, opipe, ival));
|
|
case UE_ISOCHRONOUS:
|
|
pipe->methods = &ohci_device_isoc_methods;
|
|
return (ohci_setup_isoc(pipe));
|
|
case UE_BULK:
|
|
pipe->methods = &ohci_device_bulk_methods;
|
|
s = splusb();
|
|
ohci_add_ed(sed, sc->sc_bulk_head);
|
|
splx(s);
|
|
break;
|
|
}
|
|
}
|
|
return (USBD_NORMAL_COMPLETION);
|
|
|
|
bad:
|
|
if (std != NULL)
|
|
ohci_free_std(sc, std);
|
|
bad1:
|
|
if (sed != NULL)
|
|
ohci_free_sed(sc, sed);
|
|
bad0:
|
|
return (USBD_NOMEM);
|
|
|
|
}
|
|
|
|
/*
|
|
* Close a reqular pipe.
|
|
* Assumes that there are no pending transactions.
|
|
*/
|
|
void
|
|
ohci_close_pipe(usbd_pipe_handle pipe, ohci_soft_ed_t *head)
|
|
{
|
|
struct ohci_pipe *opipe = (struct ohci_pipe *)pipe;
|
|
ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus;
|
|
ohci_soft_ed_t *sed = opipe->sed;
|
|
int s;
|
|
|
|
s = splusb();
|
|
#ifdef DIAGNOSTIC
|
|
sed->ed.ed_flags |= htole32(OHCI_ED_SKIP);
|
|
if ((le32toh(sed->ed.ed_tailp) & OHCI_HEADMASK) !=
|
|
(le32toh(sed->ed.ed_headp) & OHCI_HEADMASK)) {
|
|
ohci_soft_td_t *std;
|
|
std = ohci_hash_find_td(sc, le32toh(sed->ed.ed_headp));
|
|
printf("ohci_close_pipe: pipe not empty sed=%p hd=0x%x "
|
|
"tl=0x%x pipe=%p, std=%p\n", sed,
|
|
(int)le32toh(sed->ed.ed_headp),
|
|
(int)le32toh(sed->ed.ed_tailp),
|
|
pipe, std);
|
|
#ifdef USB_DEBUG
|
|
usbd_dump_pipe(&opipe->pipe);
|
|
#endif
|
|
#ifdef USB_DEBUG
|
|
ohci_dump_ed(sed);
|
|
if (std)
|
|
ohci_dump_td(std);
|
|
#endif
|
|
usb_delay_ms(&sc->sc_bus, 2);
|
|
if ((le32toh(sed->ed.ed_tailp) & OHCI_HEADMASK) !=
|
|
(le32toh(sed->ed.ed_headp) & OHCI_HEADMASK))
|
|
printf("ohci_close_pipe: pipe still not empty\n");
|
|
}
|
|
#endif
|
|
ohci_rem_ed(sed, head);
|
|
/* Make sure the host controller is not touching this ED */
|
|
usb_delay_ms(&sc->sc_bus, 1);
|
|
splx(s);
|
|
ohci_free_sed(sc, opipe->sed);
|
|
}
|
|
|
|
/*
|
|
* 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
|
|
ohci_abort_xfer(usbd_xfer_handle xfer, usbd_status status)
|
|
{
|
|
struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe;
|
|
ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus;
|
|
ohci_soft_ed_t *sed = opipe->sed;
|
|
ohci_soft_td_t *p, *n;
|
|
ohci_physaddr_t headp;
|
|
int s, hit;
|
|
|
|
DPRINTF(("ohci_abort_xfer: xfer=%p pipe=%p sed=%p\n", xfer, opipe,sed));
|
|
|
|
if (sc->sc_dying) {
|
|
/* If we're dying, just do the software part. */
|
|
s = splusb();
|
|
xfer->status = status; /* make software ignore it */
|
|
usb_uncallout(xfer->timeout_handle, ohci_timeout, xfer);
|
|
usb_transfer_complete(xfer);
|
|
splx(s);
|
|
}
|
|
|
|
if (xfer->device->bus->intr_context || !curproc)
|
|
panic("ohci_abort_xfer: not in process context");
|
|
|
|
/*
|
|
* Step 1: Make interrupt routine and hardware ignore xfer.
|
|
*/
|
|
s = splusb();
|
|
xfer->status = status; /* make software ignore it */
|
|
usb_uncallout(xfer->timeout_handle, ohci_timeout, xfer);
|
|
splx(s);
|
|
DPRINTFN(1,("ohci_abort_xfer: stop ed=%p\n", sed));
|
|
sed->ed.ed_flags |= htole32(OHCI_ED_SKIP); /* force hardware skip */
|
|
|
|
/*
|
|
* 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(opipe->pipe.device->bus, 20); /* 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
|
|
tsleep(&sc->sc_softwake, PZERO, "ohciab", 0);
|
|
#endif /* USB_USE_SOFTINTR */
|
|
splx(s);
|
|
|
|
/*
|
|
* Step 3: Remove any vestiges of the xfer from the hardware.
|
|
* The complication here is that the hardware may have executed
|
|
* beyond the xfer we're trying to abort. So as we're scanning
|
|
* the TDs of this xfer we check if the hardware points to
|
|
* any of them.
|
|
*/
|
|
s = splusb(); /* XXX why? */
|
|
p = xfer->hcpriv;
|
|
#ifdef DIAGNOSTIC
|
|
if (p == NULL) {
|
|
splx(s);
|
|
printf("ohci_abort_xfer: hcpriv is NULL\n");
|
|
return;
|
|
}
|
|
#endif
|
|
#ifdef USB_DEBUG
|
|
if (ohcidebug > 1) {
|
|
DPRINTF(("ohci_abort_xfer: sed=\n"));
|
|
ohci_dump_ed(sed);
|
|
ohci_dump_tds(p);
|
|
}
|
|
#endif
|
|
headp = le32toh(sed->ed.ed_headp) & OHCI_HEADMASK;
|
|
hit = 0;
|
|
for (; p->xfer == xfer; p = n) {
|
|
hit |= headp == p->physaddr;
|
|
n = p->nexttd;
|
|
ohci_free_std(sc, p);
|
|
}
|
|
/* Zap headp register if hardware pointed inside the xfer. */
|
|
if (hit) {
|
|
DPRINTFN(1,("ohci_abort_xfer: set hd=0x08%x, tl=0x%08x\n",
|
|
(int)p->physaddr, (int)le32toh(sed->ed.ed_tailp)));
|
|
sed->ed.ed_headp = htole32(p->physaddr); /* unlink TDs */
|
|
} else {
|
|
DPRINTFN(1,("ohci_abort_xfer: no hit\n"));
|
|
}
|
|
|
|
/*
|
|
* Step 4: Turn on hardware again.
|
|
*/
|
|
sed->ed.ed_flags &= htole32(~OHCI_ED_SKIP); /* remove hardware skip */
|
|
|
|
/*
|
|
* Step 5: Execute callback.
|
|
*/
|
|
usb_transfer_complete(xfer);
|
|
|
|
splx(s);
|
|
}
|
|
|
|
/*
|
|
* Data structures and routines to emulate the root hub.
|
|
*/
|
|
Static usb_device_descriptor_t ohci_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 */
|
|
};
|
|
|
|
Static usb_config_descriptor_t ohci_confd = {
|
|
USB_CONFIG_DESCRIPTOR_SIZE,
|
|
UDESC_CONFIG,
|
|
{USB_CONFIG_DESCRIPTOR_SIZE +
|
|
USB_INTERFACE_DESCRIPTOR_SIZE +
|
|
USB_ENDPOINT_DESCRIPTOR_SIZE},
|
|
1,
|
|
1,
|
|
0,
|
|
UC_SELF_POWERED,
|
|
0 /* max power */
|
|
};
|
|
|
|
Static usb_interface_descriptor_t ohci_ifcd = {
|
|
USB_INTERFACE_DESCRIPTOR_SIZE,
|
|
UDESC_INTERFACE,
|
|
0,
|
|
0,
|
|
1,
|
|
UICLASS_HUB,
|
|
UISUBCLASS_HUB,
|
|
UIPROTO_FSHUB,
|
|
0
|
|
};
|
|
|
|
Static usb_endpoint_descriptor_t ohci_endpd = {
|
|
USB_ENDPOINT_DESCRIPTOR_SIZE,
|
|
UDESC_ENDPOINT,
|
|
UE_DIR_IN | OHCI_INTR_ENDPT,
|
|
UE_INTERRUPT,
|
|
{8, 0}, /* max packet */
|
|
255
|
|
};
|
|
|
|
Static usb_hub_descriptor_t ohci_hubd = {
|
|
USB_HUB_DESCRIPTOR_SIZE,
|
|
UDESC_HUB,
|
|
0,
|
|
{0,0},
|
|
0,
|
|
0,
|
|
{0},
|
|
};
|
|
|
|
Static int
|
|
ohci_str(usb_string_descriptor_t *p, int l, const char *s)
|
|
{
|
|
int i;
|
|
|
|
if (l == 0)
|
|
return (0);
|
|
p->bLength = 2 * strlen(s) + 2;
|
|
if (l == 1)
|
|
return (1);
|
|
p->bDescriptorType = UDESC_STRING;
|
|
l -= 2;
|
|
for (i = 0; s[i] && l > 1; i++, l -= 2)
|
|
USETW2(p->bString[i], 0, s[i]);
|
|
return (2*i+2);
|
|
}
|
|
|
|
/*
|
|
* Simulate a hardware hub by handling all the necessary requests.
|
|
*/
|
|
Static usbd_status
|
|
ohci_root_ctrl_transfer(usbd_xfer_handle xfer)
|
|
{
|
|
usbd_status err;
|
|
|
|
/* Insert last in queue. */
|
|
err = usb_insert_transfer(xfer);
|
|
if (err)
|
|
return (err);
|
|
|
|
/* Pipe isn't running, start first */
|
|
return (ohci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue)));
|
|
}
|
|
|
|
Static usbd_status
|
|
ohci_root_ctrl_start(usbd_xfer_handle xfer)
|
|
{
|
|
ohci_softc_t *sc = (ohci_softc_t *)xfer->pipe->device->bus;
|
|
usb_device_request_t *req;
|
|
void *buf = NULL;
|
|
int port, i;
|
|
int s, len, value, index, l, totlen = 0;
|
|
usb_port_status_t ps;
|
|
usb_hub_descriptor_t hubd;
|
|
usbd_status err;
|
|
u_int32_t v;
|
|
|
|
if (sc->sc_dying)
|
|
return (USBD_IOERROR);
|
|
|
|
#ifdef DIAGNOSTIC
|
|
if (!(xfer->rqflags & URQ_REQUEST))
|
|
/* XXX panic */
|
|
return (USBD_INVAL);
|
|
#endif
|
|
req = &xfer->request;
|
|
|
|
DPRINTFN(4,("ohci_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(8,("ohci_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(ohci_devd.idVendor, sc->sc_id_vendor);
|
|
memcpy(buf, &ohci_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, &ohci_confd, l);
|
|
buf = (char *)buf + l;
|
|
len -= l;
|
|
l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE);
|
|
totlen += l;
|
|
memcpy(buf, &ohci_ifcd, l);
|
|
buf = (char *)buf + l;
|
|
len -= l;
|
|
l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE);
|
|
totlen += l;
|
|
memcpy(buf, &ohci_endpd, l);
|
|
break;
|
|
case UDESC_STRING:
|
|
if (len == 0)
|
|
break;
|
|
*(u_int8_t *)buf = 0;
|
|
totlen = 1;
|
|
switch (value & 0xff) {
|
|
case 1: /* Vendor */
|
|
totlen = ohci_str(buf, len, sc->sc_vendor);
|
|
break;
|
|
case 2: /* Product */
|
|
totlen = ohci_str(buf, len, "OHCI root hub");
|
|
break;
|
|
}
|
|
break;
|
|
default:
|
|
err = USBD_IOERROR;
|
|
goto ret;
|
|
}
|
|
break;
|
|
case C(UR_GET_INTERFACE, UT_READ_INTERFACE):
|
|
if (len > 0) {
|
|
*(u_int8_t *)buf = 0;
|
|
totlen = 1;
|
|
}
|
|
break;
|
|
case C(UR_GET_STATUS, UT_READ_DEVICE):
|
|
if (len > 1) {
|
|
USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED);
|
|
totlen = 2;
|
|
}
|
|
break;
|
|
case C(UR_GET_STATUS, UT_READ_INTERFACE):
|
|
case C(UR_GET_STATUS, UT_READ_ENDPOINT):
|
|
if (len > 1) {
|
|
USETW(((usb_status_t *)buf)->wStatus, 0);
|
|
totlen = 2;
|
|
}
|
|
break;
|
|
case C(UR_SET_ADDRESS, UT_WRITE_DEVICE):
|
|
if (value >= USB_MAX_DEVICES) {
|
|
err = USBD_IOERROR;
|
|
goto ret;
|
|
}
|
|
sc->sc_addr = value;
|
|
break;
|
|
case C(UR_SET_CONFIG, UT_WRITE_DEVICE):
|
|
if (value != 0 && value != 1) {
|
|
err = USBD_IOERROR;
|
|
goto ret;
|
|
}
|
|
sc->sc_conf = value;
|
|
break;
|
|
case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE):
|
|
break;
|
|
case C(UR_SET_FEATURE, UT_WRITE_DEVICE):
|
|
case C(UR_SET_FEATURE, UT_WRITE_INTERFACE):
|
|
case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT):
|
|
err = USBD_IOERROR;
|
|
goto ret;
|
|
case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE):
|
|
break;
|
|
case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT):
|
|
break;
|
|
/* Hub requests */
|
|
case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE):
|
|
break;
|
|
case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER):
|
|
DPRINTFN(8, ("ohci_root_ctrl_control: UR_CLEAR_PORT_FEATURE "
|
|
"port=%d feature=%d\n",
|
|
index, value));
|
|
if (index < 1 || index > sc->sc_noport) {
|
|
err = USBD_IOERROR;
|
|
goto ret;
|
|
}
|
|
port = OHCI_RH_PORT_STATUS(index);
|
|
switch(value) {
|
|
case UHF_PORT_ENABLE:
|
|
OWRITE4(sc, port, UPS_CURRENT_CONNECT_STATUS);
|
|
break;
|
|
case UHF_PORT_SUSPEND:
|
|
OWRITE4(sc, port, UPS_OVERCURRENT_INDICATOR);
|
|
break;
|
|
case UHF_PORT_POWER:
|
|
/* Yes, writing to the LOW_SPEED bit clears power. */
|
|
OWRITE4(sc, port, UPS_LOW_SPEED);
|
|
break;
|
|
case UHF_C_PORT_CONNECTION:
|
|
OWRITE4(sc, port, UPS_C_CONNECT_STATUS << 16);
|
|
break;
|
|
case UHF_C_PORT_ENABLE:
|
|
OWRITE4(sc, port, UPS_C_PORT_ENABLED << 16);
|
|
break;
|
|
case UHF_C_PORT_SUSPEND:
|
|
OWRITE4(sc, port, UPS_C_SUSPEND << 16);
|
|
break;
|
|
case UHF_C_PORT_OVER_CURRENT:
|
|
OWRITE4(sc, port, UPS_C_OVERCURRENT_INDICATOR << 16);
|
|
break;
|
|
case UHF_C_PORT_RESET:
|
|
OWRITE4(sc, port, UPS_C_PORT_RESET << 16);
|
|
break;
|
|
default:
|
|
err = USBD_IOERROR;
|
|
goto ret;
|
|
}
|
|
switch(value) {
|
|
case UHF_C_PORT_CONNECTION:
|
|
case UHF_C_PORT_ENABLE:
|
|
case UHF_C_PORT_SUSPEND:
|
|
case UHF_C_PORT_OVER_CURRENT:
|
|
case UHF_C_PORT_RESET:
|
|
/* Enable RHSC interrupt if condition is cleared. */
|
|
if ((OREAD4(sc, port) >> 16) == 0)
|
|
ohci_rhsc_able(sc, 1);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE):
|
|
if ((value & 0xff) != 0) {
|
|
err = USBD_IOERROR;
|
|
goto ret;
|
|
}
|
|
v = OREAD4(sc, OHCI_RH_DESCRIPTOR_A);
|
|
hubd = ohci_hubd;
|
|
hubd.bNbrPorts = sc->sc_noport;
|
|
USETW(hubd.wHubCharacteristics,
|
|
(v & OHCI_NPS ? UHD_PWR_NO_SWITCH :
|
|
v & OHCI_PSM ? UHD_PWR_GANGED : UHD_PWR_INDIVIDUAL)
|
|
/* XXX overcurrent */
|
|
);
|
|
hubd.bPwrOn2PwrGood = OHCI_GET_POTPGT(v);
|
|
v = OREAD4(sc, OHCI_RH_DESCRIPTOR_B);
|
|
for (i = 0, l = sc->sc_noport; l > 0; i++, l -= 8, v >>= 8)
|
|
hubd.DeviceRemovable[i++] = (u_int8_t)v;
|
|
hubd.bDescLength = USB_HUB_DESCRIPTOR_SIZE + i;
|
|
l = min(len, hubd.bDescLength);
|
|
totlen = l;
|
|
memcpy(buf, &hubd, l);
|
|
break;
|
|
case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE):
|
|
if (len != 4) {
|
|
err = USBD_IOERROR;
|
|
goto ret;
|
|
}
|
|
memset(buf, 0, len); /* ? XXX */
|
|
totlen = len;
|
|
break;
|
|
case C(UR_GET_STATUS, UT_READ_CLASS_OTHER):
|
|
DPRINTFN(8,("ohci_root_ctrl_transfer: get port status i=%d\n",
|
|
index));
|
|
if (index < 1 || index > sc->sc_noport) {
|
|
err = USBD_IOERROR;
|
|
goto ret;
|
|
}
|
|
if (len != 4) {
|
|
err = USBD_IOERROR;
|
|
goto ret;
|
|
}
|
|
v = OREAD4(sc, OHCI_RH_PORT_STATUS(index));
|
|
DPRINTFN(8,("ohci_root_ctrl_transfer: port status=0x%04x\n",
|
|
v));
|
|
USETW(ps.wPortStatus, v);
|
|
USETW(ps.wPortChange, v >> 16);
|
|
l = min(len, sizeof ps);
|
|
memcpy(buf, &ps, l);
|
|
totlen = l;
|
|
break;
|
|
case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE):
|
|
err = USBD_IOERROR;
|
|
goto ret;
|
|
case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE):
|
|
break;
|
|
case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER):
|
|
if (index < 1 || index > sc->sc_noport) {
|
|
err = USBD_IOERROR;
|
|
goto ret;
|
|
}
|
|
port = OHCI_RH_PORT_STATUS(index);
|
|
switch(value) {
|
|
case UHF_PORT_ENABLE:
|
|
OWRITE4(sc, port, UPS_PORT_ENABLED);
|
|
break;
|
|
case UHF_PORT_SUSPEND:
|
|
OWRITE4(sc, port, UPS_SUSPEND);
|
|
break;
|
|
case UHF_PORT_RESET:
|
|
DPRINTFN(5,("ohci_root_ctrl_transfer: reset port %d\n",
|
|
index));
|
|
OWRITE4(sc, port, UPS_RESET);
|
|
for (i = 0; i < 5; i++) {
|
|
usb_delay_ms(&sc->sc_bus,
|
|
USB_PORT_ROOT_RESET_DELAY);
|
|
if (sc->sc_dying) {
|
|
err = USBD_IOERROR;
|
|
goto ret;
|
|
}
|
|
if ((OREAD4(sc, port) & UPS_RESET) == 0)
|
|
break;
|
|
}
|
|
DPRINTFN(8,("ohci port %d reset, status = 0x%04x\n",
|
|
index, OREAD4(sc, port)));
|
|
break;
|
|
case UHF_PORT_POWER:
|
|
DPRINTFN(2,("ohci_root_ctrl_transfer: set port power "
|
|
"%d\n", index));
|
|
OWRITE4(sc, port, UPS_PORT_POWER);
|
|
break;
|
|
default:
|
|
err = USBD_IOERROR;
|
|
goto ret;
|
|
}
|
|
break;
|
|
default:
|
|
err = USBD_IOERROR;
|
|
goto ret;
|
|
}
|
|
xfer->actlen = totlen;
|
|
err = USBD_NORMAL_COMPLETION;
|
|
ret:
|
|
xfer->status = err;
|
|
s = splusb();
|
|
usb_transfer_complete(xfer);
|
|
splx(s);
|
|
return (USBD_IN_PROGRESS);
|
|
}
|
|
|
|
/* Abort a root control request. */
|
|
Static void
|
|
ohci_root_ctrl_abort(usbd_xfer_handle xfer)
|
|
{
|
|
/* Nothing to do, all transfers are synchronous. */
|
|
}
|
|
|
|
/* Close the root pipe. */
|
|
Static void
|
|
ohci_root_ctrl_close(usbd_pipe_handle pipe)
|
|
{
|
|
DPRINTF(("ohci_root_ctrl_close\n"));
|
|
/* Nothing to do. */
|
|
}
|
|
|
|
Static usbd_status
|
|
ohci_root_intr_transfer(usbd_xfer_handle xfer)
|
|
{
|
|
usbd_status err;
|
|
|
|
/* Insert last in queue. */
|
|
err = usb_insert_transfer(xfer);
|
|
if (err)
|
|
return (err);
|
|
|
|
/* Pipe isn't running, start first */
|
|
return (ohci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue)));
|
|
}
|
|
|
|
Static usbd_status
|
|
ohci_root_intr_start(usbd_xfer_handle xfer)
|
|
{
|
|
usbd_pipe_handle pipe = xfer->pipe;
|
|
ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus;
|
|
|
|
if (sc->sc_dying)
|
|
return (USBD_IOERROR);
|
|
|
|
sc->sc_intrxfer = xfer;
|
|
|
|
return (USBD_IN_PROGRESS);
|
|
}
|
|
|
|
/* Abort a root interrupt request. */
|
|
Static void
|
|
ohci_root_intr_abort(usbd_xfer_handle xfer)
|
|
{
|
|
int s;
|
|
|
|
if (xfer->pipe->intrxfer == xfer) {
|
|
DPRINTF(("ohci_root_intr_abort: remove\n"));
|
|
xfer->pipe->intrxfer = NULL;
|
|
}
|
|
xfer->status = USBD_CANCELLED;
|
|
s = splusb();
|
|
usb_transfer_complete(xfer);
|
|
splx(s);
|
|
}
|
|
|
|
/* Close the root pipe. */
|
|
Static void
|
|
ohci_root_intr_close(usbd_pipe_handle pipe)
|
|
{
|
|
ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus;
|
|
|
|
DPRINTF(("ohci_root_intr_close\n"));
|
|
|
|
sc->sc_intrxfer = NULL;
|
|
}
|
|
|
|
/************************/
|
|
|
|
Static usbd_status
|
|
ohci_device_ctrl_transfer(usbd_xfer_handle xfer)
|
|
{
|
|
usbd_status err;
|
|
|
|
/* Insert last in queue. */
|
|
err = usb_insert_transfer(xfer);
|
|
if (err)
|
|
return (err);
|
|
|
|
/* Pipe isn't running, start first */
|
|
return (ohci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue)));
|
|
}
|
|
|
|
Static usbd_status
|
|
ohci_device_ctrl_start(usbd_xfer_handle xfer)
|
|
{
|
|
ohci_softc_t *sc = (ohci_softc_t *)xfer->pipe->device->bus;
|
|
usbd_status err;
|
|
|
|
if (sc->sc_dying)
|
|
return (USBD_IOERROR);
|
|
|
|
#ifdef DIAGNOSTIC
|
|
if (!(xfer->rqflags & URQ_REQUEST)) {
|
|
/* XXX panic */
|
|
printf("ohci_device_ctrl_transfer: not a request\n");
|
|
return (USBD_INVAL);
|
|
}
|
|
#endif
|
|
|
|
err = ohci_device_request(xfer);
|
|
if (err)
|
|
return (err);
|
|
|
|
if (sc->sc_bus.use_polling)
|
|
ohci_waitintr(sc, xfer);
|
|
return (USBD_IN_PROGRESS);
|
|
}
|
|
|
|
/* Abort a device control request. */
|
|
Static void
|
|
ohci_device_ctrl_abort(usbd_xfer_handle xfer)
|
|
{
|
|
DPRINTF(("ohci_device_ctrl_abort: xfer=%p\n", xfer));
|
|
ohci_abort_xfer(xfer, USBD_CANCELLED);
|
|
}
|
|
|
|
/* Close a device control pipe. */
|
|
Static void
|
|
ohci_device_ctrl_close(usbd_pipe_handle pipe)
|
|
{
|
|
struct ohci_pipe *opipe = (struct ohci_pipe *)pipe;
|
|
ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus;
|
|
|
|
DPRINTF(("ohci_device_ctrl_close: pipe=%p\n", pipe));
|
|
ohci_close_pipe(pipe, sc->sc_ctrl_head);
|
|
ohci_free_std(sc, opipe->tail.td);
|
|
}
|
|
|
|
/************************/
|
|
|
|
Static void
|
|
ohci_device_clear_toggle(usbd_pipe_handle pipe)
|
|
{
|
|
struct ohci_pipe *opipe = (struct ohci_pipe *)pipe;
|
|
|
|
opipe->sed->ed.ed_headp &= htole32(~OHCI_TOGGLECARRY);
|
|
}
|
|
|
|
Static void
|
|
ohci_noop(usbd_pipe_handle pipe)
|
|
{
|
|
}
|
|
|
|
Static usbd_status
|
|
ohci_device_bulk_transfer(usbd_xfer_handle xfer)
|
|
{
|
|
usbd_status err;
|
|
|
|
/* Insert last in queue. */
|
|
err = usb_insert_transfer(xfer);
|
|
if (err)
|
|
return (err);
|
|
|
|
/* Pipe isn't running, start first */
|
|
return (ohci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue)));
|
|
}
|
|
|
|
Static usbd_status
|
|
ohci_device_bulk_start(usbd_xfer_handle xfer)
|
|
{
|
|
struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe;
|
|
usbd_device_handle dev = opipe->pipe.device;
|
|
ohci_softc_t *sc = (ohci_softc_t *)dev->bus;
|
|
int addr = dev->address;
|
|
ohci_soft_td_t *data, *tail, *tdp;
|
|
ohci_soft_ed_t *sed;
|
|
int s, len, isread, endpt;
|
|
usbd_status err;
|
|
|
|
if (sc->sc_dying)
|
|
return (USBD_IOERROR);
|
|
|
|
#ifdef DIAGNOSTIC
|
|
if (xfer->rqflags & URQ_REQUEST) {
|
|
/* XXX panic */
|
|
printf("ohci_device_bulk_start: a request\n");
|
|
return (USBD_INVAL);
|
|
}
|
|
#endif
|
|
|
|
len = xfer->length;
|
|
endpt = xfer->pipe->endpoint->edesc->bEndpointAddress;
|
|
isread = UE_GET_DIR(endpt) == UE_DIR_IN;
|
|
sed = opipe->sed;
|
|
|
|
DPRINTFN(4,("ohci_device_bulk_start: xfer=%p len=%d isread=%d "
|
|
"flags=%d endpt=%d\n", xfer, len, isread, xfer->flags,
|
|
endpt));
|
|
|
|
opipe->u.bulk.isread = isread;
|
|
opipe->u.bulk.length = len;
|
|
|
|
/* Update device address */
|
|
sed->ed.ed_flags = htole32(
|
|
(le32toh(sed->ed.ed_flags) & ~OHCI_ED_ADDRMASK) |
|
|
OHCI_ED_SET_FA(addr));
|
|
|
|
/* Allocate a chain of new TDs (including a new tail). */
|
|
data = opipe->tail.td;
|
|
err = ohci_alloc_std_chain(opipe, sc, len, isread, xfer,
|
|
data, &tail);
|
|
/* We want interrupt at the end of the transfer. */
|
|
tail->td.td_flags &= htole32(~OHCI_TD_INTR_MASK);
|
|
tail->td.td_flags |= htole32(OHCI_TD_SET_DI(1));
|
|
tail->flags |= OHCI_CALL_DONE;
|
|
tail = tail->nexttd; /* point at sentinel */
|
|
if (err)
|
|
return (err);
|
|
|
|
tail->xfer = NULL;
|
|
xfer->hcpriv = data;
|
|
|
|
DPRINTFN(4,("ohci_device_bulk_start: ed_flags=0x%08x td_flags=0x%08x "
|
|
"td_cbp=0x%08x td_be=0x%08x\n",
|
|
(int)le32toh(sed->ed.ed_flags),
|
|
(int)le32toh(data->td.td_flags),
|
|
(int)le32toh(data->td.td_cbp),
|
|
(int)le32toh(data->td.td_be)));
|
|
|
|
#ifdef USB_DEBUG
|
|
if (ohcidebug > 5) {
|
|
ohci_dump_ed(sed);
|
|
ohci_dump_tds(data);
|
|
}
|
|
#endif
|
|
|
|
/* Insert ED in schedule */
|
|
s = splusb();
|
|
for (tdp = data; tdp != tail; tdp = tdp->nexttd) {
|
|
tdp->xfer = xfer;
|
|
}
|
|
sed->ed.ed_tailp = htole32(tail->physaddr);
|
|
opipe->tail.td = tail;
|
|
sed->ed.ed_flags &= htole32(~OHCI_ED_SKIP);
|
|
OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_BLF);
|
|
if (xfer->timeout && !sc->sc_bus.use_polling) {
|
|
usb_callout(xfer->timeout_handle, MS_TO_TICKS(xfer->timeout),
|
|
ohci_timeout, xfer);
|
|
}
|
|
|
|
#if 0
|
|
/* This goes wrong if we are too slow. */
|
|
if (ohcidebug > 10) {
|
|
delay(10000);
|
|
DPRINTF(("ohci_device_intr_transfer: status=%x\n",
|
|
OREAD4(sc, OHCI_COMMAND_STATUS)));
|
|
ohci_dump_ed(sed);
|
|
ohci_dump_tds(data);
|
|
}
|
|
#endif
|
|
|
|
splx(s);
|
|
|
|
return (USBD_IN_PROGRESS);
|
|
}
|
|
|
|
Static void
|
|
ohci_device_bulk_abort(usbd_xfer_handle xfer)
|
|
{
|
|
DPRINTF(("ohci_device_bulk_abort: xfer=%p\n", xfer));
|
|
ohci_abort_xfer(xfer, USBD_CANCELLED);
|
|
}
|
|
|
|
/*
|
|
* Close a device bulk pipe.
|
|
*/
|
|
Static void
|
|
ohci_device_bulk_close(usbd_pipe_handle pipe)
|
|
{
|
|
struct ohci_pipe *opipe = (struct ohci_pipe *)pipe;
|
|
ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus;
|
|
|
|
DPRINTF(("ohci_device_bulk_close: pipe=%p\n", pipe));
|
|
ohci_close_pipe(pipe, sc->sc_bulk_head);
|
|
ohci_free_std(sc, opipe->tail.td);
|
|
}
|
|
|
|
/************************/
|
|
|
|
Static usbd_status
|
|
ohci_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, start first */
|
|
return (ohci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue)));
|
|
}
|
|
|
|
Static usbd_status
|
|
ohci_device_intr_start(usbd_xfer_handle xfer)
|
|
{
|
|
struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe;
|
|
usbd_device_handle dev = opipe->pipe.device;
|
|
ohci_softc_t *sc = (ohci_softc_t *)dev->bus;
|
|
ohci_soft_ed_t *sed = opipe->sed;
|
|
ohci_soft_td_t *data, *tail;
|
|
int len;
|
|
int s;
|
|
|
|
if (sc->sc_dying)
|
|
return (USBD_IOERROR);
|
|
|
|
DPRINTFN(3, ("ohci_device_intr_transfer: xfer=%p len=%d "
|
|
"flags=%d priv=%p\n",
|
|
xfer, xfer->length, xfer->flags, xfer->priv));
|
|
|
|
#ifdef DIAGNOSTIC
|
|
if (xfer->rqflags & URQ_REQUEST)
|
|
panic("ohci_device_intr_transfer: a request");
|
|
#endif
|
|
|
|
len = xfer->length;
|
|
|
|
data = opipe->tail.td;
|
|
tail = ohci_alloc_std(sc);
|
|
if (tail == NULL)
|
|
return (USBD_NOMEM);
|
|
tail->xfer = NULL;
|
|
|
|
data->td.td_flags = htole32(
|
|
OHCI_TD_IN | OHCI_TD_NOCC |
|
|
OHCI_TD_SET_DI(1) | OHCI_TD_TOGGLE_CARRY);
|
|
if (xfer->flags & USBD_SHORT_XFER_OK)
|
|
data->td.td_flags |= htole32(OHCI_TD_R);
|
|
data->td.td_cbp = htole32(DMAADDR(&xfer->dmabuf, 0));
|
|
data->nexttd = tail;
|
|
data->td.td_nexttd = htole32(tail->physaddr);
|
|
data->td.td_be = htole32(le32toh(data->td.td_cbp) + len - 1);
|
|
data->len = len;
|
|
data->xfer = xfer;
|
|
data->flags = OHCI_CALL_DONE | OHCI_ADD_LEN;
|
|
xfer->hcpriv = data;
|
|
|
|
#ifdef USB_DEBUG
|
|
if (ohcidebug > 5) {
|
|
DPRINTF(("ohci_device_intr_transfer:\n"));
|
|
ohci_dump_ed(sed);
|
|
ohci_dump_tds(data);
|
|
}
|
|
#endif
|
|
|
|
/* Insert ED in schedule */
|
|
s = splusb();
|
|
sed->ed.ed_tailp = htole32(tail->physaddr);
|
|
opipe->tail.td = tail;
|
|
sed->ed.ed_flags &= htole32(~OHCI_ED_SKIP);
|
|
|
|
#if 0
|
|
/*
|
|
* This goes horribly wrong, printing thousands of descriptors,
|
|
* because false references are followed due to the fact that the
|
|
* TD is gone.
|
|
*/
|
|
if (ohcidebug > 5) {
|
|
usb_delay_ms(&sc->sc_bus, 5);
|
|
DPRINTF(("ohci_device_intr_transfer: status=%x\n",
|
|
OREAD4(sc, OHCI_COMMAND_STATUS)));
|
|
ohci_dump_ed(sed);
|
|
ohci_dump_tds(data);
|
|
}
|
|
#endif
|
|
splx(s);
|
|
|
|
return (USBD_IN_PROGRESS);
|
|
}
|
|
|
|
/* Abort a device control request. */
|
|
Static void
|
|
ohci_device_intr_abort(usbd_xfer_handle xfer)
|
|
{
|
|
if (xfer->pipe->intrxfer == xfer) {
|
|
DPRINTF(("ohci_device_intr_abort: remove\n"));
|
|
xfer->pipe->intrxfer = NULL;
|
|
}
|
|
ohci_abort_xfer(xfer, USBD_CANCELLED);
|
|
}
|
|
|
|
/* Close a device interrupt pipe. */
|
|
Static void
|
|
ohci_device_intr_close(usbd_pipe_handle pipe)
|
|
{
|
|
struct ohci_pipe *opipe = (struct ohci_pipe *)pipe;
|
|
ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus;
|
|
int nslots = opipe->u.intr.nslots;
|
|
int pos = opipe->u.intr.pos;
|
|
int j;
|
|
ohci_soft_ed_t *p, *sed = opipe->sed;
|
|
int s;
|
|
|
|
DPRINTFN(1,("ohci_device_intr_close: pipe=%p nslots=%d pos=%d\n",
|
|
pipe, nslots, pos));
|
|
s = splusb();
|
|
sed->ed.ed_flags |= htole32(OHCI_ED_SKIP);
|
|
if ((le32toh(sed->ed.ed_tailp) & OHCI_HEADMASK) !=
|
|
(le32toh(sed->ed.ed_headp) & OHCI_HEADMASK))
|
|
usb_delay_ms(&sc->sc_bus, 2);
|
|
#ifdef DIAGNOSTIC
|
|
if ((le32toh(sed->ed.ed_tailp) & OHCI_HEADMASK) !=
|
|
(le32toh(sed->ed.ed_headp) & OHCI_HEADMASK))
|
|
panic("%s: Intr pipe %p still has TDs queued",
|
|
USBDEVNAME(sc->sc_bus.bdev), pipe);
|
|
#endif
|
|
|
|
for (p = sc->sc_eds[pos]; p && p->next != sed; p = p->next)
|
|
;
|
|
#ifdef DIAGNOSTIC
|
|
if (p == NULL)
|
|
panic("ohci_device_intr_close: ED not found");
|
|
#endif
|
|
p->next = sed->next;
|
|
p->ed.ed_nexted = sed->ed.ed_nexted;
|
|
splx(s);
|
|
|
|
for (j = 0; j < nslots; j++)
|
|
--sc->sc_bws[(pos * nslots + j) % OHCI_NO_INTRS];
|
|
|
|
ohci_free_std(sc, opipe->tail.td);
|
|
ohci_free_sed(sc, opipe->sed);
|
|
}
|
|
|
|
Static usbd_status
|
|
ohci_device_setintr(ohci_softc_t *sc, struct ohci_pipe *opipe, int ival)
|
|
{
|
|
int i, j, s, best;
|
|
u_int npoll, slow, shigh, nslots;
|
|
u_int bestbw, bw;
|
|
ohci_soft_ed_t *hsed, *sed = opipe->sed;
|
|
|
|
DPRINTFN(2, ("ohci_setintr: pipe=%p\n", opipe));
|
|
if (ival == 0) {
|
|
printf("ohci_setintr: 0 interval\n");
|
|
return (USBD_INVAL);
|
|
}
|
|
|
|
npoll = OHCI_NO_INTRS;
|
|
while (npoll > ival)
|
|
npoll /= 2;
|
|
DPRINTFN(2, ("ohci_setintr: ival=%d npoll=%d\n", ival, npoll));
|
|
|
|
/*
|
|
* We now know which level in the tree the ED must go into.
|
|
* Figure out which slot has most bandwidth left over.
|
|
* Slots to examine:
|
|
* npoll
|
|
* 1 0
|
|
* 2 1 2
|
|
* 4 3 4 5 6
|
|
* 8 7 8 9 10 11 12 13 14
|
|
* N (N-1) .. (N-1+N-1)
|
|
*/
|
|
slow = npoll-1;
|
|
shigh = slow + npoll;
|
|
nslots = OHCI_NO_INTRS / npoll;
|
|
for (best = i = slow, bestbw = ~0; i < shigh; i++) {
|
|
bw = 0;
|
|
for (j = 0; j < nslots; j++)
|
|
bw += sc->sc_bws[(i * nslots + j) % OHCI_NO_INTRS];
|
|
if (bw < bestbw) {
|
|
best = i;
|
|
bestbw = bw;
|
|
}
|
|
}
|
|
DPRINTFN(2, ("ohci_setintr: best=%d(%d..%d) bestbw=%d\n",
|
|
best, slow, shigh, bestbw));
|
|
|
|
s = splusb();
|
|
hsed = sc->sc_eds[best];
|
|
sed->next = hsed->next;
|
|
sed->ed.ed_nexted = hsed->ed.ed_nexted;
|
|
hsed->next = sed;
|
|
hsed->ed.ed_nexted = htole32(sed->physaddr);
|
|
splx(s);
|
|
|
|
for (j = 0; j < nslots; j++)
|
|
++sc->sc_bws[(best * nslots + j) % OHCI_NO_INTRS];
|
|
opipe->u.intr.nslots = nslots;
|
|
opipe->u.intr.pos = best;
|
|
|
|
DPRINTFN(5, ("ohci_setintr: returns %p\n", opipe));
|
|
return (USBD_NORMAL_COMPLETION);
|
|
}
|
|
|
|
/***********************/
|
|
|
|
usbd_status
|
|
ohci_device_isoc_transfer(usbd_xfer_handle xfer)
|
|
{
|
|
usbd_status err;
|
|
|
|
DPRINTFN(5,("ohci_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, */
|
|
ohci_device_isoc_enter(xfer);
|
|
|
|
/* and start if the pipe wasn't running */
|
|
if (!err)
|
|
ohci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue));
|
|
|
|
return (err);
|
|
}
|
|
|
|
void
|
|
ohci_device_isoc_enter(usbd_xfer_handle xfer)
|
|
{
|
|
struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe;
|
|
usbd_device_handle dev = opipe->pipe.device;
|
|
ohci_softc_t *sc = (ohci_softc_t *)dev->bus;
|
|
ohci_soft_ed_t *sed = opipe->sed;
|
|
struct iso *iso = &opipe->u.iso;
|
|
struct ohci_xfer *oxfer = (struct ohci_xfer *)xfer;
|
|
ohci_soft_itd_t *sitd, *nsitd;
|
|
ohci_physaddr_t buf, offs, noffs, bp0, tdphys;
|
|
int i, ncur, nframes;
|
|
int s;
|
|
|
|
DPRINTFN(1,("ohci_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 (iso->next == -1) {
|
|
/* Not in use yet, schedule it a few frames ahead. */
|
|
iso->next = le32toh(sc->sc_hcca->hcca_frame_number) + 5;
|
|
DPRINTFN(2,("ohci_device_isoc_enter: start next=%d\n",
|
|
iso->next));
|
|
}
|
|
|
|
if (xfer->hcpriv) {
|
|
for (sitd = xfer->hcpriv; sitd != NULL && sitd->xfer == xfer;
|
|
sitd = sitd->nextitd)
|
|
ohci_free_sitd(sc, sitd); /* Free ITDs in prev xfer*/
|
|
|
|
if (sitd == NULL) {
|
|
sitd = ohci_alloc_sitd(sc);
|
|
if (sitd == NULL)
|
|
panic("cant alloc isoc");
|
|
opipe->tail.itd = sitd;
|
|
tdphys = sitd->physaddr;
|
|
sed->ed.ed_flags |= htole32(OHCI_ED_SKIP); /* Stop*/
|
|
sed->ed.ed_headp =
|
|
sed->ed.ed_tailp = htole32(tdphys);
|
|
sed->ed.ed_flags &= htole32(~OHCI_ED_SKIP); /* Start.*/
|
|
}
|
|
}
|
|
|
|
sitd = opipe->tail.itd;
|
|
buf = DMAADDR(&xfer->dmabuf, 0);
|
|
bp0 = OHCI_PAGE(buf);
|
|
offs = OHCI_PAGE_OFFSET(buf);
|
|
nframes = xfer->nframes;
|
|
xfer->hcpriv = sitd;
|
|
for (i = ncur = 0; i < nframes; i++, ncur++) {
|
|
noffs = offs + xfer->frlengths[i];
|
|
if (ncur == OHCI_ITD_NOFFSET || /* all offsets used */
|
|
OHCI_PAGE(buf + noffs) > bp0 + OHCI_PAGE_SIZE) { /* too many page crossings */
|
|
|
|
/* Allocate next ITD */
|
|
nsitd = ohci_alloc_sitd(sc);
|
|
if (nsitd == NULL) {
|
|
/* XXX what now? */
|
|
printf("%s: isoc TD alloc failed\n",
|
|
USBDEVNAME(sc->sc_bus.bdev));
|
|
return;
|
|
}
|
|
|
|
/* Fill current ITD */
|
|
sitd->itd.itd_flags = htole32(
|
|
OHCI_ITD_NOCC |
|
|
OHCI_ITD_SET_SF(iso->next) |
|
|
OHCI_ITD_SET_DI(6) | /* delay intr a little */
|
|
OHCI_ITD_SET_FC(ncur));
|
|
sitd->itd.itd_bp0 = htole32(bp0);
|
|
sitd->nextitd = nsitd;
|
|
sitd->itd.itd_nextitd = htole32(nsitd->physaddr);
|
|
sitd->itd.itd_be = htole32(bp0 + offs - 1);
|
|
sitd->xfer = xfer;
|
|
sitd->flags = OHCI_ITD_ACTIVE;
|
|
|
|
sitd = nsitd;
|
|
iso->next = iso->next + ncur;
|
|
bp0 = OHCI_PAGE(buf + offs);
|
|
ncur = 0;
|
|
}
|
|
sitd->itd.itd_offset[ncur] = htole16(OHCI_ITD_MK_OFFS(offs));
|
|
offs = noffs;
|
|
}
|
|
nsitd = ohci_alloc_sitd(sc);
|
|
if (nsitd == NULL) {
|
|
/* XXX what now? */
|
|
printf("%s: isoc TD alloc failed\n",
|
|
USBDEVNAME(sc->sc_bus.bdev));
|
|
return;
|
|
}
|
|
/* Fixup last used ITD */
|
|
sitd->itd.itd_flags = htole32(
|
|
OHCI_ITD_NOCC |
|
|
OHCI_ITD_SET_SF(iso->next) |
|
|
OHCI_ITD_SET_DI(0) |
|
|
OHCI_ITD_SET_FC(ncur));
|
|
sitd->itd.itd_bp0 = htole32(bp0);
|
|
sitd->nextitd = nsitd;
|
|
sitd->itd.itd_nextitd = htole32(nsitd->physaddr);
|
|
sitd->itd.itd_be = htole32(bp0 + offs - 1);
|
|
sitd->xfer = xfer;
|
|
sitd->flags = OHCI_CALL_DONE | OHCI_ITD_ACTIVE;
|
|
|
|
iso->next = iso->next + ncur;
|
|
iso->inuse += nframes;
|
|
|
|
xfer->actlen = offs; /* XXX pretend we did it all */
|
|
|
|
xfer->status = USBD_IN_PROGRESS;
|
|
|
|
oxfer->ohci_xfer_flags |= OHCI_ISOC_DIRTY;
|
|
|
|
#ifdef USB_DEBUG
|
|
if (ohcidebug > 5) {
|
|
DPRINTF(("ohci_device_isoc_enter: frame=%d\n",
|
|
le32toh(sc->sc_hcca->hcca_frame_number)));
|
|
ohci_dump_itds(xfer->hcpriv);
|
|
ohci_dump_ed(sed);
|
|
}
|
|
#endif
|
|
|
|
s = splusb();
|
|
opipe->tail.itd = nsitd;
|
|
sed->ed.ed_flags &= htole32(~OHCI_ED_SKIP);
|
|
sed->ed.ed_tailp = htole32(nsitd->physaddr);
|
|
splx(s);
|
|
|
|
#ifdef USB_DEBUG
|
|
if (ohcidebug > 5) {
|
|
delay(150000);
|
|
DPRINTF(("ohci_device_isoc_enter: after frame=%d\n",
|
|
le32toh(sc->sc_hcca->hcca_frame_number)));
|
|
ohci_dump_itds(xfer->hcpriv);
|
|
ohci_dump_ed(sed);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
usbd_status
|
|
ohci_device_isoc_start(usbd_xfer_handle xfer)
|
|
{
|
|
struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe;
|
|
ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus;
|
|
ohci_soft_ed_t *sed;
|
|
int s;
|
|
|
|
DPRINTFN(5,("ohci_device_isoc_start: xfer=%p\n", xfer));
|
|
|
|
if (sc->sc_dying)
|
|
return (USBD_IOERROR);
|
|
|
|
#ifdef DIAGNOSTIC
|
|
if (xfer->status != USBD_IN_PROGRESS)
|
|
printf("ohci_device_isoc_start: not in progress %p\n", xfer);
|
|
#endif
|
|
|
|
/* XXX anything to do? */
|
|
|
|
s = splusb();
|
|
sed = opipe->sed; /* Turn off ED skip-bit to start processing */
|
|
sed->ed.ed_flags &= htole32(~OHCI_ED_SKIP); /* ED's ITD list.*/
|
|
splx(s);
|
|
|
|
return (USBD_IN_PROGRESS);
|
|
}
|
|
|
|
void
|
|
ohci_device_isoc_abort(usbd_xfer_handle xfer)
|
|
{
|
|
struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe;
|
|
ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus;
|
|
ohci_soft_ed_t *sed;
|
|
ohci_soft_itd_t *sitd, *tmp_sitd;
|
|
int s,undone,num_sitds;
|
|
|
|
s = splusb();
|
|
opipe->aborting = 1;
|
|
|
|
DPRINTFN(1,("ohci_device_isoc_abort: xfer=%p\n", xfer));
|
|
|
|
/* Transfer is already done. */
|
|
if (xfer->status != USBD_NOT_STARTED &&
|
|
xfer->status != USBD_IN_PROGRESS) {
|
|
splx(s);
|
|
printf("ohci_device_isoc_abort: early return\n");
|
|
return;
|
|
}
|
|
|
|
/* Give xfer the requested abort code. */
|
|
xfer->status = USBD_CANCELLED;
|
|
|
|
sed = opipe->sed;
|
|
sed->ed.ed_flags |= htole32(OHCI_ED_SKIP); /* force hardware skip */
|
|
|
|
num_sitds = 0;
|
|
sitd = xfer->hcpriv;
|
|
#ifdef DIAGNOSTIC
|
|
if (sitd == NULL) {
|
|
splx(s);
|
|
printf("ohci_device_isoc_abort: hcpriv==0\n");
|
|
return;
|
|
}
|
|
#endif
|
|
for (; sitd != NULL && sitd->xfer == xfer; sitd = sitd->nextitd) {
|
|
num_sitds++;
|
|
#ifdef DIAGNOSTIC
|
|
DPRINTFN(1,("abort sets done sitd=%p\n", sitd));
|
|
sitd->isdone = 1;
|
|
#endif
|
|
}
|
|
|
|
splx(s);
|
|
|
|
/*
|
|
* Each sitd has up to OHCI_ITD_NOFFSET transfers, each can
|
|
* take a usb 1ms cycle. Conservatively wait for it to drain.
|
|
* Even with DMA done, it can take awhile for the "batch"
|
|
* delivery of completion interrupts to occur thru the controller.
|
|
*/
|
|
|
|
do {
|
|
usb_delay_ms(&sc->sc_bus, 2*(num_sitds*OHCI_ITD_NOFFSET));
|
|
|
|
undone = 0;
|
|
tmp_sitd = xfer->hcpriv;
|
|
for (; tmp_sitd != NULL && tmp_sitd->xfer == xfer;
|
|
tmp_sitd = tmp_sitd->nextitd) {
|
|
if (OHCI_CC_NO_ERROR ==
|
|
OHCI_ITD_GET_CC(le32toh(tmp_sitd->itd.itd_flags)) &&
|
|
tmp_sitd->flags & OHCI_ITD_ACTIVE &&
|
|
(tmp_sitd->flags & OHCI_ITD_INTFIN) == 0)
|
|
undone++;
|
|
}
|
|
} while( undone != 0 );
|
|
|
|
|
|
s = splusb();
|
|
|
|
/* Run callback. */
|
|
usb_transfer_complete(xfer);
|
|
|
|
if (sitd != NULL)
|
|
/*
|
|
* Only if there is a `next' sitd in next xfer...
|
|
* unlink this xfer's sitds.
|
|
*/
|
|
sed->ed.ed_headp = htole32(sitd->physaddr);
|
|
else
|
|
sed->ed.ed_headp = 0;
|
|
|
|
sed->ed.ed_flags &= htole32(~OHCI_ED_SKIP); /* remove hardware skip */
|
|
|
|
splx(s);
|
|
}
|
|
|
|
void
|
|
ohci_device_isoc_done(usbd_xfer_handle xfer)
|
|
{
|
|
/* This null routine corresponds to non-isoc "done()" routines
|
|
* that free the stds associated with an xfer after a completed
|
|
* xfer interrupt. However, in the case of isoc transfers, the
|
|
* sitds associated with the transfer have already been processed
|
|
* and reallocated for the next iteration by
|
|
* "ohci_device_isoc_transfer()".
|
|
*
|
|
* Routine "usb_transfer_complete()" is called at the end of every
|
|
* relevant usb interrupt. "usb_transfer_complete()" indirectly
|
|
* calls 1) "ohci_device_isoc_transfer()" (which keeps pumping the
|
|
* pipeline by setting up the next transfer iteration) and 2) then
|
|
* calls "ohci_device_isoc_done()". Isoc transfers have not been
|
|
* working for the ohci usb because this routine was trashing the
|
|
* xfer set up for the next iteration (thus, only the first
|
|
* UGEN_NISOREQS xfers outstanding on an open would work). Perhaps
|
|
* this could all be re-factored, but that's another pass...
|
|
*/
|
|
}
|
|
|
|
usbd_status
|
|
ohci_setup_isoc(usbd_pipe_handle pipe)
|
|
{
|
|
struct ohci_pipe *opipe = (struct ohci_pipe *)pipe;
|
|
ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus;
|
|
struct iso *iso = &opipe->u.iso;
|
|
int s;
|
|
|
|
iso->next = -1;
|
|
iso->inuse = 0;
|
|
|
|
s = splusb();
|
|
ohci_add_ed(opipe->sed, sc->sc_isoc_head);
|
|
splx(s);
|
|
|
|
return (USBD_NORMAL_COMPLETION);
|
|
}
|
|
|
|
void
|
|
ohci_device_isoc_close(usbd_pipe_handle pipe)
|
|
{
|
|
struct ohci_pipe *opipe = (struct ohci_pipe *)pipe;
|
|
ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus;
|
|
ohci_soft_ed_t *sed;
|
|
|
|
DPRINTF(("ohci_device_isoc_close: pipe=%p\n", pipe));
|
|
|
|
sed = opipe->sed;
|
|
sed->ed.ed_flags |= htole32(OHCI_ED_SKIP); /* Stop device. */
|
|
|
|
ohci_close_pipe(pipe, sc->sc_isoc_head); /* Stop isoc list, free ED.*/
|
|
|
|
/* up to NISOREQs xfers still outstanding. */
|
|
|
|
#ifdef DIAGNOSTIC
|
|
opipe->tail.itd->isdone = 1;
|
|
#endif
|
|
ohci_free_sitd(sc, opipe->tail.itd); /* Next `avail free' sitd.*/
|
|
}
|