9ab3a4add1
them in bulk because there is at least one feature that's unimplemented on FreeBSD that needs to be done and these are good placeholders.
1366 lines
34 KiB
C
1366 lines
34 KiB
C
/* $NetBSD: usbdi.c,v 1.106 2004/10/24 12:52:40 augustss Exp $ */
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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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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/module.h>
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#include <sys/bus.h>
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#include "usb_if.h"
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#if defined(DIAGNOSTIC) && defined(__i386__)
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#include <machine/cpu.h>
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#endif
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#include <sys/malloc.h>
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#include <sys/proc.h>
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#include <machine/bus.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/usbdi_util.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 "usb_if.h"
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#define delay(d) DELAY(d)
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#ifdef USB_DEBUG
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#define DPRINTF(x) if (usbdebug) logprintf x
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#define DPRINTFN(n,x) if (usbdebug>(n)) logprintf x
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extern int usbdebug;
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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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static usbd_status usbd_ar_pipe(usbd_pipe_handle pipe);
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static void usbd_do_request_async_cb
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(usbd_xfer_handle, usbd_private_handle, usbd_status);
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static void usbd_start_next(usbd_pipe_handle pipe);
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static usbd_status usbd_open_pipe_ival
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(usbd_interface_handle, u_int8_t, u_int8_t, usbd_pipe_handle *, int);
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static int usbd_xfer_isread(usbd_xfer_handle xfer);
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static void usbd_start_transfer(void *arg, bus_dma_segment_t *segs, int nseg,
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int error);
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static void usbd_alloc_callback(void *arg, bus_dma_segment_t *segs, int nseg,
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int error);
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static int usbd_nbuses = 0;
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void
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usbd_init(void)
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{
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usbd_nbuses++;
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}
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void
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usbd_finish(void)
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{
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--usbd_nbuses;
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}
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static __inline int
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usbd_xfer_isread(usbd_xfer_handle xfer)
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{
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if (xfer->rqflags & URQ_REQUEST)
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return (xfer->request.bmRequestType & UT_READ);
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else
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return (xfer->pipe->endpoint->edesc->bEndpointAddress &
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UE_DIR_IN);
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}
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#ifdef USB_DEBUG
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void
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usbd_dump_iface(struct usbd_interface *iface)
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{
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printf("usbd_dump_iface: iface=%p\n", iface);
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if (iface == NULL)
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return;
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printf(" device=%p idesc=%p index=%d altindex=%d priv=%p\n",
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iface->device, iface->idesc, iface->index, iface->altindex,
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iface->priv);
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}
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void
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usbd_dump_device(struct usbd_device *dev)
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{
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printf("usbd_dump_device: dev=%p\n", dev);
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if (dev == NULL)
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return;
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printf(" bus=%p default_pipe=%p\n", dev->bus, dev->default_pipe);
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printf(" address=%d config=%d depth=%d speed=%d self_powered=%d "
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"power=%d langid=%d\n",
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dev->address, dev->config, dev->depth, dev->speed,
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dev->self_powered, dev->power, dev->langid);
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}
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void
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usbd_dump_endpoint(struct usbd_endpoint *endp)
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{
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printf("usbd_dump_endpoint: endp=%p\n", endp);
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if (endp == NULL)
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return;
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printf(" edesc=%p refcnt=%d\n", endp->edesc, endp->refcnt);
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if (endp->edesc)
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printf(" bEndpointAddress=0x%02x\n",
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endp->edesc->bEndpointAddress);
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}
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void
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usbd_dump_queue(usbd_pipe_handle pipe)
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{
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usbd_xfer_handle xfer;
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printf("usbd_dump_queue: pipe=%p\n", pipe);
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STAILQ_FOREACH(xfer, &pipe->queue, next) {
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printf(" xfer=%p\n", xfer);
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}
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}
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void
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usbd_dump_pipe(usbd_pipe_handle pipe)
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{
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printf("usbd_dump_pipe: pipe=%p\n", pipe);
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if (pipe == NULL)
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return;
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usbd_dump_iface(pipe->iface);
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usbd_dump_device(pipe->device);
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usbd_dump_endpoint(pipe->endpoint);
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printf(" (usbd_dump_pipe:)\n refcnt=%d running=%d aborting=%d\n",
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pipe->refcnt, pipe->running, pipe->aborting);
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printf(" intrxfer=%p, repeat=%d, interval=%d\n",
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pipe->intrxfer, pipe->repeat, pipe->interval);
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}
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#endif
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usbd_status
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usbd_open_pipe(usbd_interface_handle iface, u_int8_t address,
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u_int8_t flags, usbd_pipe_handle *pipe)
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{
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return (usbd_open_pipe_ival(iface, address, flags, pipe,
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USBD_DEFAULT_INTERVAL));
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}
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usbd_status
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usbd_open_pipe_ival(usbd_interface_handle iface, u_int8_t address,
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u_int8_t flags, usbd_pipe_handle *pipe, int ival)
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{
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usbd_pipe_handle p;
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struct usbd_endpoint *ep;
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usbd_status err;
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int i;
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DPRINTFN(3,("usbd_open_pipe: iface=%p address=0x%x flags=0x%x\n",
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iface, address, flags));
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for (i = 0; i < iface->idesc->bNumEndpoints; i++) {
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ep = &iface->endpoints[i];
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if (ep->edesc == NULL)
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return (USBD_IOERROR);
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if (ep->edesc->bEndpointAddress == address)
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goto found;
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}
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return (USBD_BAD_ADDRESS);
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found:
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if ((flags & USBD_EXCLUSIVE_USE) && ep->refcnt != 0)
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return (USBD_IN_USE);
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err = usbd_setup_pipe(iface->device, iface, ep, ival, &p);
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if (err)
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return (err);
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LIST_INSERT_HEAD(&iface->pipes, p, next);
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*pipe = p;
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return (USBD_NORMAL_COMPLETION);
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}
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usbd_status
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usbd_open_pipe_intr(usbd_interface_handle iface, u_int8_t address,
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u_int8_t flags, usbd_pipe_handle *pipe,
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usbd_private_handle priv, void *buffer, u_int32_t len,
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usbd_callback cb, int ival)
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{
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usbd_status err;
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usbd_xfer_handle xfer;
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usbd_pipe_handle ipipe;
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DPRINTFN(3,("usbd_open_pipe_intr: address=0x%x flags=0x%x len=%d\n",
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address, flags, len));
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err = usbd_open_pipe_ival(iface, address, USBD_EXCLUSIVE_USE,
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&ipipe, ival);
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if (err)
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return (err);
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xfer = usbd_alloc_xfer(iface->device);
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if (xfer == NULL) {
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err = USBD_NOMEM;
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goto bad1;
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}
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usbd_setup_xfer(xfer, ipipe, priv, buffer, len, flags,
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USBD_NO_TIMEOUT, cb);
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ipipe->intrxfer = xfer;
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ipipe->repeat = 1;
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err = usbd_transfer(xfer);
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*pipe = ipipe;
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if (err != USBD_IN_PROGRESS && err)
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goto bad2;
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return (USBD_NORMAL_COMPLETION);
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bad2:
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ipipe->intrxfer = NULL;
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ipipe->repeat = 0;
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usbd_free_xfer(xfer);
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bad1:
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usbd_close_pipe(ipipe);
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return (err);
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}
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usbd_status
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usbd_close_pipe(usbd_pipe_handle pipe)
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{
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#ifdef DIAGNOSTIC
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if (pipe == NULL) {
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printf("usbd_close_pipe: pipe==NULL\n");
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return (USBD_NORMAL_COMPLETION);
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}
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#endif
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if (--pipe->refcnt != 0)
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return (USBD_NORMAL_COMPLETION);
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if (! STAILQ_EMPTY(&pipe->queue))
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return (USBD_PENDING_REQUESTS);
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LIST_REMOVE(pipe, next);
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pipe->endpoint->refcnt--;
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pipe->methods->close(pipe);
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if (pipe->intrxfer != NULL)
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usbd_free_xfer(pipe->intrxfer);
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free(pipe, M_USB);
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return (USBD_NORMAL_COMPLETION);
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}
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usbd_status
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usbd_transfer(usbd_xfer_handle xfer)
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{
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usbd_pipe_handle pipe = xfer->pipe;
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struct usb_dma_mapping *dmap = &xfer->dmamap;
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usbd_status err;
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u_int size;
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int s;
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DPRINTFN(5,("usbd_transfer: xfer=%p, flags=%d, pipe=%p, running=%d\n",
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xfer, xfer->flags, pipe, pipe->running));
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#ifdef USB_DEBUG
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if (usbdebug > 5)
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usbd_dump_queue(pipe);
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#endif
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xfer->done = 0;
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if (pipe->aborting)
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return (USBD_CANCELLED);
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size = xfer->length;
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/* If there is no buffer, allocate one. */
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if (!(xfer->rqflags & URQ_DEV_DMABUF) && size != 0) {
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bus_dma_tag_t tag = pipe->device->bus->buffer_dmatag;
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#ifdef DIAGNOSTIC
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if (xfer->rqflags & URQ_AUTO_DMABUF)
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printf("usbd_transfer: has old buffer!\n");
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#endif
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err = bus_dmamap_create(tag, 0, &dmap->map);
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if (err)
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return (USBD_NOMEM);
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xfer->rqflags |= URQ_AUTO_DMABUF;
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err = bus_dmamap_load(tag, dmap->map, xfer->buffer, size,
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usbd_start_transfer, xfer, 0);
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if (err != 0 && err != EINPROGRESS) {
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xfer->rqflags &= ~URQ_AUTO_DMABUF;
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bus_dmamap_destroy(tag, dmap->map);
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return (USBD_INVAL);
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}
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} else if (size != 0) {
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usbd_start_transfer(xfer, dmap->segs, dmap->nsegs, 0);
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} else {
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usbd_start_transfer(xfer, NULL, 0, 0);
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}
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if (!(xfer->flags & USBD_SYNCHRONOUS))
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return (xfer->done ? 0 : USBD_IN_PROGRESS);
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|
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/* Sync transfer, wait for completion. */
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s = splusb();
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while (!xfer->done) {
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if (pipe->device->bus->use_polling)
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panic("usbd_transfer: not done");
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tsleep(xfer, PRIBIO, "usbsyn", 0);
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}
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splx(s);
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return (xfer->status);
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}
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static void
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usbd_start_transfer(void *arg, bus_dma_segment_t *segs, int nseg, int error)
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{
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usbd_xfer_handle xfer = arg;
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usbd_pipe_handle pipe = xfer->pipe;
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struct usb_dma_mapping *dmap = &xfer->dmamap;
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bus_dma_tag_t tag = pipe->device->bus->buffer_dmatag;
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int err, i;
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if (error != 0) {
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KASSERT(xfer->rqflags & URQ_AUTO_DMABUF,
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("usbd_start_transfer: error with non-auto buf"));
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if (nseg > 0)
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bus_dmamap_unload(tag, dmap->map);
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bus_dmamap_destroy(tag, dmap->map);
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/* XXX */
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usb_insert_transfer(xfer);
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xfer->status = USBD_IOERROR;
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usb_transfer_complete(xfer);
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return;
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}
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if (segs != dmap->segs) {
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for (i = 0; i < nseg; i++)
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dmap->segs[i] = segs[i];
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}
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dmap->nsegs = nseg;
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|
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if (nseg > 0) {
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if (!usbd_xfer_isread(xfer)) {
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/*
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* Copy data if it is not already in the correct
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* buffer.
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*/
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if (!(xfer->flags & USBD_NO_COPY) &&
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xfer->allocbuf != NULL &&
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xfer->buffer != xfer->allocbuf)
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memcpy(xfer->allocbuf, xfer->buffer,
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xfer->length);
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bus_dmamap_sync(tag, dmap->map, BUS_DMASYNC_PREWRITE);
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} else if (xfer->rqflags & URQ_REQUEST) {
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/*
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* Even if we have no data portion we still need to
|
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* sync the dmamap for the request data in the SETUP
|
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* packet.
|
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*/
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bus_dmamap_sync(tag, dmap->map, BUS_DMASYNC_PREWRITE);
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}
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}
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err = pipe->methods->transfer(xfer);
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if (err != USBD_IN_PROGRESS && err) {
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if (xfer->rqflags & URQ_AUTO_DMABUF) {
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bus_dmamap_unload(tag, dmap->map);
|
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bus_dmamap_destroy(tag, dmap->map);
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xfer->rqflags &= ~URQ_AUTO_DMABUF;
|
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}
|
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xfer->status = err;
|
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usb_transfer_complete(xfer);
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return;
|
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}
|
|
}
|
|
|
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/* Like usbd_transfer(), but waits for completion. */
|
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usbd_status
|
|
usbd_sync_transfer(usbd_xfer_handle xfer)
|
|
{
|
|
xfer->flags |= USBD_SYNCHRONOUS;
|
|
return (usbd_transfer(xfer));
|
|
}
|
|
|
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struct usbd_allocstate {
|
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usbd_xfer_handle xfer;
|
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int done;
|
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int error;
|
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int waiting;
|
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};
|
|
|
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void *
|
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usbd_alloc_buffer(usbd_xfer_handle xfer, u_int32_t size)
|
|
{
|
|
struct usbd_allocstate allocstate;
|
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struct usb_dma_mapping *dmap = &xfer->dmamap;
|
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bus_dma_tag_t tag = xfer->device->bus->buffer_dmatag;
|
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void *buf;
|
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usbd_status err;
|
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int error, s;
|
|
|
|
KASSERT((xfer->rqflags & (URQ_DEV_DMABUF | URQ_AUTO_DMABUF)) == 0,
|
|
("usbd_alloc_buffer: xfer already has a buffer"));
|
|
err = bus_dmamap_create(tag, 0, &dmap->map);
|
|
if (err)
|
|
return (NULL);
|
|
buf = malloc(size, M_USB, M_WAITOK);
|
|
|
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allocstate.xfer = xfer;
|
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allocstate.done = 0;
|
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allocstate.error = 0;
|
|
allocstate.waiting = 0;
|
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error = bus_dmamap_load(tag, dmap->map, buf, size, usbd_alloc_callback,
|
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&allocstate, 0);
|
|
if (error && error != EINPROGRESS) {
|
|
bus_dmamap_destroy(tag, dmap->map);
|
|
free(buf, M_USB);
|
|
return (NULL);
|
|
}
|
|
if (error == EINPROGRESS) {
|
|
/* Wait for completion. */
|
|
s = splusb();
|
|
allocstate.waiting = 1;
|
|
while (!allocstate.done)
|
|
tsleep(&allocstate, PRIBIO, "usbdab", 0);
|
|
splx(s);
|
|
error = allocstate.error;
|
|
}
|
|
if (error) {
|
|
bus_dmamap_unload(tag, dmap->map);
|
|
bus_dmamap_destroy(tag, dmap->map);
|
|
free(buf, M_USB);
|
|
return (NULL);
|
|
}
|
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|
|
xfer->allocbuf = buf;
|
|
xfer->rqflags |= URQ_DEV_DMABUF;
|
|
return (buf);
|
|
}
|
|
|
|
void
|
|
usbd_free_buffer(usbd_xfer_handle xfer)
|
|
{
|
|
struct usb_dma_mapping *dmap = &xfer->dmamap;
|
|
bus_dma_tag_t tag = xfer->device->bus->buffer_dmatag;
|
|
|
|
KASSERT((xfer->rqflags & (URQ_DEV_DMABUF | URQ_AUTO_DMABUF)) ==
|
|
URQ_DEV_DMABUF, ("usbd_free_buffer: no/auto buffer"));
|
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|
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xfer->rqflags &= ~URQ_DEV_DMABUF;
|
|
bus_dmamap_unload(tag, dmap->map);
|
|
bus_dmamap_destroy(tag, dmap->map);
|
|
free(xfer->allocbuf, M_USB);
|
|
xfer->allocbuf = NULL;
|
|
}
|
|
|
|
void *
|
|
usbd_get_buffer(usbd_xfer_handle xfer)
|
|
{
|
|
if (!(xfer->rqflags & URQ_DEV_DMABUF))
|
|
return (NULL);
|
|
return (xfer->allocbuf);
|
|
}
|
|
|
|
static void
|
|
usbd_alloc_callback(void *arg, bus_dma_segment_t *segs, int nseg, int error)
|
|
{
|
|
struct usbd_allocstate *allocstate = arg;
|
|
usbd_xfer_handle xfer = allocstate->xfer;
|
|
struct usb_dma_mapping *dmap = &xfer->dmamap;
|
|
int i;
|
|
|
|
allocstate->error = error;
|
|
if (error == 0) {
|
|
for (i = 0; i < nseg; i++)
|
|
dmap->segs[i] = segs[i];
|
|
dmap->nsegs = nseg;
|
|
}
|
|
allocstate->done = 1;
|
|
if (allocstate->waiting)
|
|
wakeup(&allocstate);
|
|
}
|
|
|
|
usbd_xfer_handle
|
|
usbd_alloc_xfer(usbd_device_handle dev)
|
|
{
|
|
usbd_xfer_handle xfer;
|
|
|
|
xfer = dev->bus->methods->allocx(dev->bus);
|
|
if (xfer == NULL)
|
|
return (NULL);
|
|
xfer->device = dev;
|
|
usb_callout_init(xfer->timeout_handle);
|
|
DPRINTFN(5,("usbd_alloc_xfer() = %p\n", xfer));
|
|
return (xfer);
|
|
}
|
|
|
|
usbd_status
|
|
usbd_free_xfer(usbd_xfer_handle xfer)
|
|
{
|
|
DPRINTFN(5,("usbd_free_xfer: %p\n", xfer));
|
|
if (xfer->rqflags & URQ_DEV_DMABUF)
|
|
usbd_free_buffer(xfer);
|
|
/* XXX Does FreeBSD need to do something similar? */
|
|
#if defined(__NetBSD__) && defined(DIAGNOSTIC)
|
|
if (callout_pending(&xfer->timeout_handle)) {
|
|
callout_stop(&xfer->timeout_handle);
|
|
printf("usbd_free_xfer: timout_handle pending");
|
|
}
|
|
#endif
|
|
xfer->device->bus->methods->freex(xfer->device->bus, xfer);
|
|
return (USBD_NORMAL_COMPLETION);
|
|
}
|
|
|
|
void
|
|
usbd_setup_xfer(usbd_xfer_handle xfer, usbd_pipe_handle pipe,
|
|
usbd_private_handle priv, void *buffer, u_int32_t length,
|
|
u_int16_t flags, u_int32_t timeout,
|
|
usbd_callback callback)
|
|
{
|
|
xfer->pipe = pipe;
|
|
xfer->priv = priv;
|
|
xfer->buffer = buffer;
|
|
xfer->length = length;
|
|
xfer->actlen = 0;
|
|
xfer->flags = flags;
|
|
xfer->timeout = timeout;
|
|
xfer->status = USBD_NOT_STARTED;
|
|
xfer->callback = callback;
|
|
xfer->rqflags &= ~URQ_REQUEST;
|
|
xfer->nframes = 0;
|
|
}
|
|
|
|
void
|
|
usbd_setup_default_xfer(usbd_xfer_handle xfer, usbd_device_handle dev,
|
|
usbd_private_handle priv, u_int32_t timeout,
|
|
usb_device_request_t *req, void *buffer,
|
|
u_int32_t length, u_int16_t flags,
|
|
usbd_callback callback)
|
|
{
|
|
xfer->pipe = dev->default_pipe;
|
|
xfer->priv = priv;
|
|
xfer->buffer = buffer;
|
|
xfer->length = length;
|
|
xfer->actlen = 0;
|
|
xfer->flags = flags;
|
|
xfer->timeout = timeout;
|
|
xfer->status = USBD_NOT_STARTED;
|
|
xfer->callback = callback;
|
|
xfer->request = *req;
|
|
xfer->rqflags |= URQ_REQUEST;
|
|
xfer->nframes = 0;
|
|
}
|
|
|
|
void
|
|
usbd_setup_isoc_xfer(usbd_xfer_handle xfer, usbd_pipe_handle pipe,
|
|
usbd_private_handle priv, u_int16_t *frlengths,
|
|
u_int32_t nframes, u_int16_t flags, usbd_callback callback)
|
|
{
|
|
int i;
|
|
|
|
xfer->pipe = pipe;
|
|
xfer->priv = priv;
|
|
xfer->buffer = 0;
|
|
xfer->length = 0;
|
|
for (i = 0; i < nframes; i++)
|
|
xfer->length += frlengths[i];
|
|
xfer->actlen = 0;
|
|
xfer->flags = flags;
|
|
xfer->timeout = USBD_NO_TIMEOUT;
|
|
xfer->status = USBD_NOT_STARTED;
|
|
xfer->callback = callback;
|
|
xfer->rqflags &= ~URQ_REQUEST;
|
|
xfer->frlengths = frlengths;
|
|
xfer->nframes = nframes;
|
|
}
|
|
|
|
void
|
|
usbd_get_xfer_status(usbd_xfer_handle xfer, usbd_private_handle *priv,
|
|
void **buffer, u_int32_t *count, usbd_status *status)
|
|
{
|
|
if (priv != NULL)
|
|
*priv = xfer->priv;
|
|
if (buffer != NULL)
|
|
*buffer = xfer->buffer;
|
|
if (count != NULL)
|
|
*count = xfer->actlen;
|
|
if (status != NULL)
|
|
*status = xfer->status;
|
|
}
|
|
|
|
usb_config_descriptor_t *
|
|
usbd_get_config_descriptor(usbd_device_handle dev)
|
|
{
|
|
#ifdef DIAGNOSTIC
|
|
if (dev == NULL) {
|
|
printf("usbd_get_config_descriptor: dev == NULL\n");
|
|
return (NULL);
|
|
}
|
|
#endif
|
|
return (dev->cdesc);
|
|
}
|
|
|
|
int
|
|
usbd_get_speed(usbd_device_handle dev)
|
|
{
|
|
return (dev->speed);
|
|
}
|
|
|
|
usb_interface_descriptor_t *
|
|
usbd_get_interface_descriptor(usbd_interface_handle iface)
|
|
{
|
|
#ifdef DIAGNOSTIC
|
|
if (iface == NULL) {
|
|
printf("usbd_get_interface_descriptor: dev == NULL\n");
|
|
return (NULL);
|
|
}
|
|
#endif
|
|
return (iface->idesc);
|
|
}
|
|
|
|
usb_device_descriptor_t *
|
|
usbd_get_device_descriptor(usbd_device_handle dev)
|
|
{
|
|
return (&dev->ddesc);
|
|
}
|
|
|
|
usb_endpoint_descriptor_t *
|
|
usbd_interface2endpoint_descriptor(usbd_interface_handle iface, u_int8_t index)
|
|
{
|
|
if (index >= iface->idesc->bNumEndpoints)
|
|
return (0);
|
|
return (iface->endpoints[index].edesc);
|
|
}
|
|
|
|
usbd_status
|
|
usbd_abort_pipe(usbd_pipe_handle pipe)
|
|
{
|
|
usbd_status err;
|
|
int s;
|
|
|
|
#ifdef DIAGNOSTIC
|
|
if (pipe == NULL) {
|
|
printf("usbd_close_pipe: pipe==NULL\n");
|
|
return (USBD_NORMAL_COMPLETION);
|
|
}
|
|
#endif
|
|
s = splusb();
|
|
err = usbd_ar_pipe(pipe);
|
|
splx(s);
|
|
return (err);
|
|
}
|
|
|
|
usbd_status
|
|
usbd_abort_default_pipe(usbd_device_handle dev)
|
|
{
|
|
return (usbd_abort_pipe(dev->default_pipe));
|
|
}
|
|
|
|
usbd_status
|
|
usbd_clear_endpoint_stall(usbd_pipe_handle pipe)
|
|
{
|
|
usbd_device_handle dev = pipe->device;
|
|
usb_device_request_t req;
|
|
usbd_status err;
|
|
|
|
DPRINTFN(8, ("usbd_clear_endpoint_stall\n"));
|
|
|
|
/*
|
|
* Clearing en endpoint stall resets the endpoint toggle, so
|
|
* do the same to the HC toggle.
|
|
*/
|
|
pipe->methods->cleartoggle(pipe);
|
|
|
|
req.bmRequestType = UT_WRITE_ENDPOINT;
|
|
req.bRequest = UR_CLEAR_FEATURE;
|
|
USETW(req.wValue, UF_ENDPOINT_HALT);
|
|
USETW(req.wIndex, pipe->endpoint->edesc->bEndpointAddress);
|
|
USETW(req.wLength, 0);
|
|
err = usbd_do_request(dev, &req, 0);
|
|
#if 0
|
|
XXX should we do this?
|
|
if (!err) {
|
|
pipe->state = USBD_PIPE_ACTIVE;
|
|
/* XXX activate pipe */
|
|
}
|
|
#endif
|
|
return (err);
|
|
}
|
|
|
|
usbd_status
|
|
usbd_clear_endpoint_stall_async(usbd_pipe_handle pipe)
|
|
{
|
|
usbd_device_handle dev = pipe->device;
|
|
usb_device_request_t req;
|
|
usbd_status err;
|
|
|
|
pipe->methods->cleartoggle(pipe);
|
|
|
|
req.bmRequestType = UT_WRITE_ENDPOINT;
|
|
req.bRequest = UR_CLEAR_FEATURE;
|
|
USETW(req.wValue, UF_ENDPOINT_HALT);
|
|
USETW(req.wIndex, pipe->endpoint->edesc->bEndpointAddress);
|
|
USETW(req.wLength, 0);
|
|
err = usbd_do_request_async(dev, &req, 0);
|
|
return (err);
|
|
}
|
|
|
|
void
|
|
usbd_clear_endpoint_toggle(usbd_pipe_handle pipe)
|
|
{
|
|
pipe->methods->cleartoggle(pipe);
|
|
}
|
|
|
|
usbd_status
|
|
usbd_endpoint_count(usbd_interface_handle iface, u_int8_t *count)
|
|
{
|
|
#ifdef DIAGNOSTIC
|
|
if (iface == NULL || iface->idesc == NULL) {
|
|
printf("usbd_endpoint_count: NULL pointer\n");
|
|
return (USBD_INVAL);
|
|
}
|
|
#endif
|
|
*count = iface->idesc->bNumEndpoints;
|
|
return (USBD_NORMAL_COMPLETION);
|
|
}
|
|
|
|
usbd_status
|
|
usbd_interface_count(usbd_device_handle dev, u_int8_t *count)
|
|
{
|
|
if (dev->cdesc == NULL)
|
|
return (USBD_NOT_CONFIGURED);
|
|
*count = dev->cdesc->bNumInterface;
|
|
return (USBD_NORMAL_COMPLETION);
|
|
}
|
|
|
|
void
|
|
usbd_interface2device_handle(usbd_interface_handle iface,
|
|
usbd_device_handle *dev)
|
|
{
|
|
*dev = iface->device;
|
|
}
|
|
|
|
usbd_status
|
|
usbd_device2interface_handle(usbd_device_handle dev,
|
|
u_int8_t ifaceno, usbd_interface_handle *iface)
|
|
{
|
|
if (dev->cdesc == NULL)
|
|
return (USBD_NOT_CONFIGURED);
|
|
if (ifaceno >= dev->cdesc->bNumInterface)
|
|
return (USBD_INVAL);
|
|
*iface = &dev->ifaces[ifaceno];
|
|
return (USBD_NORMAL_COMPLETION);
|
|
}
|
|
|
|
usbd_device_handle
|
|
usbd_pipe2device_handle(usbd_pipe_handle pipe)
|
|
{
|
|
return (pipe->device);
|
|
}
|
|
|
|
/* XXXX use altno */
|
|
usbd_status
|
|
usbd_set_interface(usbd_interface_handle iface, int altidx)
|
|
{
|
|
usb_device_request_t req;
|
|
usbd_status err;
|
|
void *endpoints;
|
|
|
|
if (LIST_FIRST(&iface->pipes) != 0)
|
|
return (USBD_IN_USE);
|
|
|
|
endpoints = iface->endpoints;
|
|
err = usbd_fill_iface_data(iface->device, iface->index, altidx);
|
|
if (err)
|
|
return (err);
|
|
|
|
/* new setting works, we can free old endpoints */
|
|
if (endpoints != NULL)
|
|
free(endpoints, M_USB);
|
|
|
|
#ifdef DIAGNOSTIC
|
|
if (iface->idesc == NULL) {
|
|
printf("usbd_set_interface: NULL pointer\n");
|
|
return (USBD_INVAL);
|
|
}
|
|
#endif
|
|
|
|
req.bmRequestType = UT_WRITE_INTERFACE;
|
|
req.bRequest = UR_SET_INTERFACE;
|
|
USETW(req.wValue, iface->idesc->bAlternateSetting);
|
|
USETW(req.wIndex, iface->idesc->bInterfaceNumber);
|
|
USETW(req.wLength, 0);
|
|
return (usbd_do_request(iface->device, &req, 0));
|
|
}
|
|
|
|
int
|
|
usbd_get_no_alts(usb_config_descriptor_t *cdesc, int ifaceno)
|
|
{
|
|
char *p = (char *)cdesc;
|
|
char *end = p + UGETW(cdesc->wTotalLength);
|
|
usb_interface_descriptor_t *d;
|
|
int n;
|
|
|
|
for (n = 0; p < end; p += d->bLength) {
|
|
d = (usb_interface_descriptor_t *)p;
|
|
if (p + d->bLength <= end &&
|
|
d->bDescriptorType == UDESC_INTERFACE &&
|
|
d->bInterfaceNumber == ifaceno)
|
|
n++;
|
|
}
|
|
return (n);
|
|
}
|
|
|
|
int
|
|
usbd_get_interface_altindex(usbd_interface_handle iface)
|
|
{
|
|
return (iface->altindex);
|
|
}
|
|
|
|
usbd_status
|
|
usbd_get_interface(usbd_interface_handle iface, u_int8_t *aiface)
|
|
{
|
|
usb_device_request_t req;
|
|
|
|
req.bmRequestType = UT_READ_INTERFACE;
|
|
req.bRequest = UR_GET_INTERFACE;
|
|
USETW(req.wValue, 0);
|
|
USETW(req.wIndex, iface->idesc->bInterfaceNumber);
|
|
USETW(req.wLength, 1);
|
|
return (usbd_do_request(iface->device, &req, aiface));
|
|
}
|
|
|
|
/*** Internal routines ***/
|
|
|
|
/* Dequeue all pipe operations, called at splusb(). */
|
|
static usbd_status
|
|
usbd_ar_pipe(usbd_pipe_handle pipe)
|
|
{
|
|
usbd_xfer_handle xfer;
|
|
|
|
SPLUSBCHECK;
|
|
|
|
DPRINTFN(2,("usbd_ar_pipe: pipe=%p\n", pipe));
|
|
#ifdef USB_DEBUG
|
|
if (usbdebug > 5)
|
|
usbd_dump_queue(pipe);
|
|
#endif
|
|
pipe->repeat = 0;
|
|
pipe->aborting = 1;
|
|
while ((xfer = STAILQ_FIRST(&pipe->queue)) != NULL) {
|
|
DPRINTFN(2,("usbd_ar_pipe: pipe=%p xfer=%p (methods=%p)\n",
|
|
pipe, xfer, pipe->methods));
|
|
/* Make the HC abort it (and invoke the callback). */
|
|
pipe->methods->abort(xfer);
|
|
KASSERT(STAILQ_FIRST(&pipe->queue) != xfer, ("usbd_ar_pipe"));
|
|
/* XXX only for non-0 usbd_clear_endpoint_stall(pipe); */
|
|
}
|
|
pipe->aborting = 0;
|
|
return (USBD_NORMAL_COMPLETION);
|
|
}
|
|
|
|
/* Called at splusb() */
|
|
void
|
|
usb_transfer_complete(usbd_xfer_handle xfer)
|
|
{
|
|
usbd_pipe_handle pipe = xfer->pipe;
|
|
struct usb_dma_mapping *dmap = &xfer->dmamap;
|
|
bus_dma_tag_t tag = pipe->device->bus->buffer_dmatag;
|
|
int sync = xfer->flags & USBD_SYNCHRONOUS;
|
|
int erred = xfer->status == USBD_CANCELLED ||
|
|
xfer->status == USBD_TIMEOUT;
|
|
int repeat = pipe->repeat;
|
|
int polling;
|
|
|
|
SPLUSBCHECK;
|
|
|
|
DPRINTFN(5, ("usb_transfer_complete: pipe=%p xfer=%p status=%d "
|
|
"actlen=%d\n", pipe, xfer, xfer->status, xfer->actlen));
|
|
#ifdef DIAGNOSTIC
|
|
if (xfer->busy_free != XFER_ONQU) {
|
|
printf("usb_transfer_complete: xfer=%p not busy 0x%08x\n",
|
|
xfer, xfer->busy_free);
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
#ifdef DIAGNOSTIC
|
|
if (pipe == NULL) {
|
|
printf("usbd_transfer_cb: pipe==0, xfer=%p\n", xfer);
|
|
return;
|
|
}
|
|
#endif
|
|
polling = pipe->device->bus->use_polling;
|
|
/* XXXX */
|
|
if (polling)
|
|
pipe->running = 0;
|
|
|
|
if (xfer->actlen != 0 && usbd_xfer_isread(xfer)) {
|
|
bus_dmamap_sync(tag, dmap->map, BUS_DMASYNC_POSTREAD);
|
|
/* Copy data if it is not already in the correct buffer. */
|
|
if (!(xfer->flags & USBD_NO_COPY) && xfer->allocbuf != NULL &&
|
|
xfer->buffer != xfer->allocbuf)
|
|
memcpy(xfer->buffer, xfer->allocbuf, xfer->actlen);
|
|
}
|
|
|
|
/* if we mapped the buffer in usbd_transfer() we unmap it here. */
|
|
if (xfer->rqflags & URQ_AUTO_DMABUF) {
|
|
if (!repeat) {
|
|
bus_dmamap_unload(tag, dmap->map);
|
|
bus_dmamap_destroy(tag, dmap->map);
|
|
xfer->rqflags &= ~URQ_AUTO_DMABUF;
|
|
}
|
|
}
|
|
|
|
if (!repeat) {
|
|
/* Remove request from queue. */
|
|
#ifdef DIAGNOSTIC
|
|
xfer->busy_free = XFER_BUSY;
|
|
#endif
|
|
KASSERT(STAILQ_FIRST(&pipe->queue) == xfer,
|
|
("usb_transfer_complete: bad dequeue"));
|
|
STAILQ_REMOVE_HEAD(&pipe->queue, next);
|
|
}
|
|
DPRINTFN(5,("usb_transfer_complete: repeat=%d new head=%p\n",
|
|
repeat, STAILQ_FIRST(&pipe->queue)));
|
|
|
|
/* Count completed transfers. */
|
|
++pipe->device->bus->stats.uds_requests
|
|
[pipe->endpoint->edesc->bmAttributes & UE_XFERTYPE];
|
|
|
|
xfer->done = 1;
|
|
if (!xfer->status && xfer->actlen < xfer->length &&
|
|
!(xfer->flags & USBD_SHORT_XFER_OK)) {
|
|
DPRINTFN(-1,("usbd_transfer_cb: short transfer %d<%d\n",
|
|
xfer->actlen, xfer->length));
|
|
xfer->status = USBD_SHORT_XFER;
|
|
}
|
|
|
|
/*
|
|
* For repeat operations, call the callback first, as the xfer
|
|
* will not go away and the "done" method may modify it. Otherwise
|
|
* reverse the order in case the callback wants to free or reuse
|
|
* the xfer.
|
|
*/
|
|
if (repeat) {
|
|
if (xfer->callback)
|
|
xfer->callback(xfer, xfer->priv, xfer->status);
|
|
pipe->methods->done(xfer);
|
|
} else {
|
|
pipe->methods->done(xfer);
|
|
if (xfer->callback)
|
|
xfer->callback(xfer, xfer->priv, xfer->status);
|
|
}
|
|
|
|
if (sync && !polling)
|
|
wakeup(xfer);
|
|
|
|
if (!repeat) {
|
|
/* XXX should we stop the queue on all errors? */
|
|
if (erred && pipe->iface != NULL) /* not control pipe */
|
|
pipe->running = 0;
|
|
else
|
|
usbd_start_next(pipe);
|
|
}
|
|
}
|
|
|
|
usbd_status
|
|
usb_insert_transfer(usbd_xfer_handle xfer)
|
|
{
|
|
usbd_pipe_handle pipe = xfer->pipe;
|
|
usbd_status err;
|
|
int s;
|
|
|
|
DPRINTFN(5,("usb_insert_transfer: pipe=%p running=%d timeout=%d\n",
|
|
pipe, pipe->running, xfer->timeout));
|
|
#ifdef DIAGNOSTIC
|
|
if (xfer->busy_free != XFER_BUSY) {
|
|
printf("usb_insert_transfer: xfer=%p not busy 0x%08x\n",
|
|
xfer, xfer->busy_free);
|
|
return (USBD_INVAL);
|
|
}
|
|
xfer->busy_free = XFER_ONQU;
|
|
#endif
|
|
s = splusb();
|
|
KASSERT(STAILQ_FIRST(&pipe->queue) != xfer, ("usb_insert_transfer"));
|
|
STAILQ_INSERT_TAIL(&pipe->queue, xfer, next);
|
|
if (pipe->running)
|
|
err = USBD_IN_PROGRESS;
|
|
else {
|
|
pipe->running = 1;
|
|
err = USBD_NORMAL_COMPLETION;
|
|
}
|
|
splx(s);
|
|
return (err);
|
|
}
|
|
|
|
/* Called at splusb() */
|
|
void
|
|
usbd_start_next(usbd_pipe_handle pipe)
|
|
{
|
|
usbd_xfer_handle xfer;
|
|
usbd_status err;
|
|
|
|
SPLUSBCHECK;
|
|
|
|
#ifdef DIAGNOSTIC
|
|
if (pipe == NULL) {
|
|
printf("usbd_start_next: pipe == NULL\n");
|
|
return;
|
|
}
|
|
if (pipe->methods == NULL || pipe->methods->start == NULL) {
|
|
printf("usbd_start_next: pipe=%p no start method\n", pipe);
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
/* Get next request in queue. */
|
|
xfer = STAILQ_FIRST(&pipe->queue);
|
|
DPRINTFN(5, ("usbd_start_next: pipe=%p, xfer=%p\n", pipe, xfer));
|
|
if (xfer == NULL) {
|
|
pipe->running = 0;
|
|
} else {
|
|
err = pipe->methods->start(xfer);
|
|
if (err != USBD_IN_PROGRESS) {
|
|
printf("usbd_start_next: error=%d\n", err);
|
|
pipe->running = 0;
|
|
/* XXX do what? */
|
|
}
|
|
}
|
|
}
|
|
|
|
usbd_status
|
|
usbd_do_request(usbd_device_handle dev, usb_device_request_t *req, void *data)
|
|
{
|
|
return (usbd_do_request_flags(dev, req, data, 0, 0,
|
|
USBD_DEFAULT_TIMEOUT));
|
|
}
|
|
|
|
usbd_status
|
|
usbd_do_request_flags(usbd_device_handle dev, usb_device_request_t *req,
|
|
void *data, u_int16_t flags, int *actlen, u_int32_t timo)
|
|
{
|
|
return (usbd_do_request_flags_pipe(dev, dev->default_pipe, req,
|
|
data, flags, actlen, timo));
|
|
}
|
|
|
|
usbd_status
|
|
usbd_do_request_flags_pipe(usbd_device_handle dev, usbd_pipe_handle pipe,
|
|
usb_device_request_t *req, void *data, u_int16_t flags, int *actlen,
|
|
u_int32_t timeout)
|
|
{
|
|
usbd_xfer_handle xfer;
|
|
usbd_status err;
|
|
|
|
#ifdef DIAGNOSTIC
|
|
/* XXX amd64 too? */
|
|
#if defined(__i386__)
|
|
KASSERT(curthread->td_intr_nesting_level == 0,
|
|
("usbd_do_request: in interrupt context"));
|
|
#endif
|
|
if (dev->bus->intr_context) {
|
|
printf("usbd_do_request: not in process context\n");
|
|
return (USBD_INVAL);
|
|
}
|
|
#endif
|
|
|
|
xfer = usbd_alloc_xfer(dev);
|
|
if (xfer == NULL)
|
|
return (USBD_NOMEM);
|
|
usbd_setup_default_xfer(xfer, dev, 0, timeout, req,
|
|
data, UGETW(req->wLength), flags, 0);
|
|
xfer->pipe = pipe;
|
|
err = usbd_sync_transfer(xfer);
|
|
#if defined(USB_DEBUG) || defined(DIAGNOSTIC)
|
|
if (xfer->actlen > xfer->length)
|
|
DPRINTF(("usbd_do_request: overrun addr=%d type=0x%02x req=0x"
|
|
"%02x val=%d index=%d rlen=%d length=%d actlen=%d\n",
|
|
dev->address, xfer->request.bmRequestType,
|
|
xfer->request.bRequest, UGETW(xfer->request.wValue),
|
|
UGETW(xfer->request.wIndex),
|
|
UGETW(xfer->request.wLength),
|
|
xfer->length, xfer->actlen));
|
|
#endif
|
|
if (actlen != NULL)
|
|
*actlen = xfer->actlen;
|
|
if (err == USBD_STALLED) {
|
|
/*
|
|
* The control endpoint has stalled. Control endpoints
|
|
* should not halt, but some may do so anyway so clear
|
|
* any halt condition.
|
|
*/
|
|
usb_device_request_t treq;
|
|
usb_status_t status;
|
|
u_int16_t s;
|
|
usbd_status nerr;
|
|
|
|
treq.bmRequestType = UT_READ_ENDPOINT;
|
|
treq.bRequest = UR_GET_STATUS;
|
|
USETW(treq.wValue, 0);
|
|
USETW(treq.wIndex, 0);
|
|
USETW(treq.wLength, sizeof(usb_status_t));
|
|
usbd_setup_default_xfer(xfer, dev, 0, USBD_DEFAULT_TIMEOUT,
|
|
&treq, &status,sizeof(usb_status_t),
|
|
0, 0);
|
|
nerr = usbd_sync_transfer(xfer);
|
|
if (nerr)
|
|
goto bad;
|
|
s = UGETW(status.wStatus);
|
|
DPRINTF(("usbd_do_request: status = 0x%04x\n", s));
|
|
if (!(s & UES_HALT))
|
|
goto bad;
|
|
treq.bmRequestType = UT_WRITE_ENDPOINT;
|
|
treq.bRequest = UR_CLEAR_FEATURE;
|
|
USETW(treq.wValue, UF_ENDPOINT_HALT);
|
|
USETW(treq.wIndex, 0);
|
|
USETW(treq.wLength, 0);
|
|
usbd_setup_default_xfer(xfer, dev, 0, USBD_DEFAULT_TIMEOUT,
|
|
&treq, &status, 0, 0, 0);
|
|
nerr = usbd_sync_transfer(xfer);
|
|
if (nerr)
|
|
goto bad;
|
|
}
|
|
|
|
bad:
|
|
usbd_free_xfer(xfer);
|
|
return (err);
|
|
}
|
|
|
|
void
|
|
usbd_do_request_async_cb(usbd_xfer_handle xfer, usbd_private_handle priv,
|
|
usbd_status status)
|
|
{
|
|
#if defined(USB_DEBUG) || defined(DIAGNOSTIC)
|
|
if (xfer->actlen > xfer->length)
|
|
DPRINTF(("usbd_do_request: overrun addr=%d type=0x%02x req=0x"
|
|
"%02x val=%d index=%d rlen=%d length=%d actlen=%d\n",
|
|
xfer->pipe->device->address,
|
|
xfer->request.bmRequestType,
|
|
xfer->request.bRequest, UGETW(xfer->request.wValue),
|
|
UGETW(xfer->request.wIndex),
|
|
UGETW(xfer->request.wLength),
|
|
xfer->length, xfer->actlen));
|
|
#endif
|
|
usbd_free_xfer(xfer);
|
|
}
|
|
|
|
/*
|
|
* Execute a request without waiting for completion.
|
|
* Can be used from interrupt context.
|
|
*/
|
|
usbd_status
|
|
usbd_do_request_async(usbd_device_handle dev, usb_device_request_t *req,
|
|
void *data)
|
|
{
|
|
usbd_xfer_handle xfer;
|
|
usbd_status err;
|
|
|
|
xfer = usbd_alloc_xfer(dev);
|
|
if (xfer == NULL)
|
|
return (USBD_NOMEM);
|
|
usbd_setup_default_xfer(xfer, dev, 0, USBD_DEFAULT_TIMEOUT, req,
|
|
data, UGETW(req->wLength), 0, usbd_do_request_async_cb);
|
|
err = usbd_transfer(xfer);
|
|
if (err != USBD_IN_PROGRESS && err) {
|
|
usbd_free_xfer(xfer);
|
|
return (err);
|
|
}
|
|
return (USBD_NORMAL_COMPLETION);
|
|
}
|
|
|
|
const struct usbd_quirks *
|
|
usbd_get_quirks(usbd_device_handle dev)
|
|
{
|
|
#ifdef DIAGNOSTIC
|
|
if (dev == NULL) {
|
|
printf("usbd_get_quirks: dev == NULL\n");
|
|
return 0;
|
|
}
|
|
#endif
|
|
return (dev->quirks);
|
|
}
|
|
|
|
/* XXX do periodic free() of free list */
|
|
|
|
/*
|
|
* Called from keyboard driver when in polling mode.
|
|
*/
|
|
void
|
|
usbd_dopoll(usbd_interface_handle iface)
|
|
{
|
|
iface->device->bus->methods->do_poll(iface->device->bus);
|
|
}
|
|
|
|
void
|
|
usbd_set_polling(usbd_device_handle dev, int on)
|
|
{
|
|
if (on)
|
|
dev->bus->use_polling++;
|
|
else
|
|
dev->bus->use_polling--;
|
|
/* When polling we need to make sure there is nothing pending to do. */
|
|
if (dev->bus->use_polling)
|
|
dev->bus->methods->soft_intr(dev->bus);
|
|
}
|
|
|
|
|
|
usb_endpoint_descriptor_t *
|
|
usbd_get_endpoint_descriptor(usbd_interface_handle iface, u_int8_t address)
|
|
{
|
|
struct usbd_endpoint *ep;
|
|
int i;
|
|
|
|
for (i = 0; i < iface->idesc->bNumEndpoints; i++) {
|
|
ep = &iface->endpoints[i];
|
|
if (ep->edesc->bEndpointAddress == address)
|
|
return (iface->endpoints[i].edesc);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* usbd_ratecheck() can limit the number of error messages that occurs.
|
|
* When a device is unplugged it may take up to 0.25s for the hub driver
|
|
* to notice it. If the driver continuosly tries to do I/O operations
|
|
* this can generate a large number of messages.
|
|
*/
|
|
int
|
|
usbd_ratecheck(struct timeval *last)
|
|
{
|
|
if (last->tv_sec == time_second)
|
|
return (0);
|
|
last->tv_sec = time_second;
|
|
return (1);
|
|
}
|
|
|
|
/*
|
|
* Search for a vendor/product pair in an array. The item size is
|
|
* given as an argument.
|
|
*/
|
|
const struct usb_devno *
|
|
usb_match_device(const struct usb_devno *tbl, u_int nentries, u_int sz,
|
|
u_int16_t vendor, u_int16_t product)
|
|
{
|
|
while (nentries-- > 0) {
|
|
u_int16_t tproduct = tbl->ud_product;
|
|
if (tbl->ud_vendor == vendor &&
|
|
(tproduct == product || tproduct == USB_PRODUCT_ANY))
|
|
return (tbl);
|
|
tbl = (const struct usb_devno *)((const char *)tbl + sz);
|
|
}
|
|
return (NULL);
|
|
}
|
|
|
|
|
|
void
|
|
usb_desc_iter_init(usbd_device_handle dev, usbd_desc_iter_t *iter)
|
|
{
|
|
const usb_config_descriptor_t *cd = usbd_get_config_descriptor(dev);
|
|
|
|
iter->cur = (const uByte *)cd;
|
|
iter->end = (const uByte *)cd + UGETW(cd->wTotalLength);
|
|
}
|
|
|
|
const usb_descriptor_t *
|
|
usb_desc_iter_next(usbd_desc_iter_t *iter)
|
|
{
|
|
const usb_descriptor_t *desc;
|
|
|
|
if (iter->cur + sizeof(usb_descriptor_t) >= iter->end) {
|
|
if (iter->cur != iter->end)
|
|
printf("usb_desc_iter_next: bad descriptor\n");
|
|
return NULL;
|
|
}
|
|
desc = (const usb_descriptor_t *)iter->cur;
|
|
if (desc->bLength == 0) {
|
|
printf("usb_desc_iter_next: descriptor length = 0\n");
|
|
return NULL;
|
|
}
|
|
iter->cur += desc->bLength;
|
|
if (iter->cur > iter->end) {
|
|
printf("usb_desc_iter_next: descriptor length too large\n");
|
|
return NULL;
|
|
}
|
|
return desc;
|
|
}
|
|
|
|
usbd_status
|
|
usbd_get_string(usbd_device_handle dev, int si, char *buf)
|
|
{
|
|
int swap = dev->quirks->uq_flags & UQ_SWAP_UNICODE;
|
|
usb_string_descriptor_t us;
|
|
char *s;
|
|
int i, n;
|
|
u_int16_t c;
|
|
usbd_status err;
|
|
int size;
|
|
|
|
buf[0] = '\0';
|
|
if (si == 0)
|
|
return (USBD_INVAL);
|
|
if (dev->quirks->uq_flags & UQ_NO_STRINGS)
|
|
return (USBD_STALLED);
|
|
if (dev->langid == USBD_NOLANG) {
|
|
/* Set up default language */
|
|
err = usbd_get_string_desc(dev, USB_LANGUAGE_TABLE, 0, &us,
|
|
&size);
|
|
if (err || size < 4) {
|
|
DPRINTFN(-1,("usbd_get_string: getting lang failed, using 0\n"));
|
|
dev->langid = 0; /* Well, just pick something then */
|
|
} else {
|
|
/* Pick the first language as the default. */
|
|
dev->langid = UGETW(us.bString[0]);
|
|
}
|
|
}
|
|
err = usbd_get_string_desc(dev, si, dev->langid, &us, &size);
|
|
if (err)
|
|
return (err);
|
|
s = buf;
|
|
n = size / 2 - 1;
|
|
for (i = 0; i < n; i++) {
|
|
c = UGETW(us.bString[i]);
|
|
/* Convert from Unicode, handle buggy strings. */
|
|
if ((c & 0xff00) == 0)
|
|
*s++ = c;
|
|
else if ((c & 0x00ff) == 0 && swap)
|
|
*s++ = c >> 8;
|
|
else
|
|
*s++ = '?';
|
|
}
|
|
*s++ = 0;
|
|
return (USBD_NORMAL_COMPLETION);
|
|
}
|
|
|
|
int
|
|
usbd_driver_load(module_t mod, int what, void *arg)
|
|
{
|
|
/* XXX should implement something like a function that removes all generic devices */
|
|
|
|
return (0);
|
|
}
|