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104 lines
2.8 KiB
C
104 lines
2.8 KiB
C
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/*
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* Copyright (C) 2009 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Authors:
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* Daniel P. Berrange <berrange@redhat.com>
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*/
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#include <config.h>
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#include <dirent.h>
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#include <fcntl.h>
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#include <inttypes.h>
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#include <limits.h>
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#include <stdio.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include "hostusb.h"
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#include "logging.h"
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#include "memory.h"
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#include "util.h"
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#include "virterror_internal.h"
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#define USB_DEVFS "/dev/bus/usb/"
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#define USB_ID_LEN 10 /* "XXXX XXXX" */
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#define USB_ADDR_LEN 8 /* "XXX:XXX" */
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struct _usbDevice {
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unsigned bus;
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unsigned dev;
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char name[USB_ADDR_LEN]; /* domain:bus:slot.function */
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char id[USB_ID_LEN]; /* product vendor */
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char path[PATH_MAX];
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};
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/* For virReportOOMError() and virReportSystemError() */
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#define VIR_FROM_THIS VIR_FROM_NONE
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#define usbReportError(conn, code, fmt...) \
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virReportErrorHelper(conn, VIR_FROM_NONE, code, __FILE__, \
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__FUNCTION__, __LINE__, fmt)
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usbDevice *
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usbGetDevice(virConnectPtr conn,
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unsigned bus,
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unsigned devno)
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{
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usbDevice *dev;
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if (VIR_ALLOC(dev) < 0) {
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virReportOOMError(conn);
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return NULL;
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}
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dev->bus = bus;
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dev->dev = devno;
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snprintf(dev->name, sizeof(dev->name), "%.3o:%.3o",
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dev->bus, dev->dev);
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snprintf(dev->path, sizeof(dev->path),
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USB_DEVFS "%03o/%03o", dev->bus, dev->dev);
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/* XXX fixme. this should be product/vendor */
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snprintf(dev->id, sizeof(dev->id), "%d %d", dev->bus, dev->dev);
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VIR_DEBUG("%s %s: initialized", dev->id, dev->name);
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return dev;
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}
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void
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usbFreeDevice(virConnectPtr conn ATTRIBUTE_UNUSED, usbDevice *dev)
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{
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VIR_DEBUG("%s %s: freeing", dev->id, dev->name);
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VIR_FREE(dev);
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}
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int usbDeviceFileIterate(virConnectPtr conn,
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usbDevice *dev,
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usbDeviceFileActor actor,
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void *opaque)
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{
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return (actor)(conn, dev, dev->path, opaque);
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}
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