skeleton.c

usbport-sl811usb主控器芯片usb程序实现

/*
 * Copyright (c) 2007, Benedikt Sauter <[e-mail]>
 * All rights reserved.
 *
 * Short descripton of file:
 *
 *
 * Redistribution and use in source and binary forms, with or without 
 * modification, are permitted provided that the following conditions 
 * are met:
 *
 *   * Redistributions of source code must retain the above copyright 
 *     notice, this list of conditions and the following disclaimer.
 *   * Redistributions in binary form must reproduce the above 
 *     copyright notice, this list of conditions and the following 
 *     disclaimer in the documentation and/or other materials provided 
 *     with the distribution.
 *   * Neither the name of the FH Augsburg nor the names of its 
 *     contributors may be used to endorse or promote products derived 
 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
#include <core/core.h>
#include <core/usb.h>
#include <usbspec/usb11spec.h>

#define MAX_DEVICES;

usb_device * devices[MAX_DEVICES];
u8 devices_in_use;

usb_driver skeleton = {
  .name    = "skeleton",
  .probe   = usb_skeleton_probe,
  .unprobe = usb_skeleton_unprobe,
  .check   = usb_skeleton_check,
  .data    = NULL
};

/* Zum Treiber initialisieren und anmelden am Stack */
void usb_skeleton_init()
{
  devices_in_use = 0;
  usb_register_driver(&skeleton);
}

/* Pr黤en ob neues Ger鋞 vom Treiber aus angesteuert werden kann */
void usb_skeleton_probe()
{
  usb_device * tmp;
  tmp = usb_open(0x1234,0x9876);
  if(tmp!=NULL) {
    /* neues Ger鋞 gefunden */

    /* wenn Ger鋞 noch nicht in interner Datenstruktur */
    if(devices_in_use<MAX_DEVICES)
      devices[devices_in_use++] = tmp;
  }

}

/* Entferntes Ger鋞 aus Treiberstrukturen l鰏chen */
void usb_skeleton_unprobe(usb_device * dev)
{
  u8 i;
  for(i=0;i<MAX_DEVICES;i++) {
    if(devices[i]==dev)
      usb_close(dev);
  }
}

/* F黵 periodische Endpunkte, Verwaltungs- und Steuerungsaufgaben */
void usb_skeleton_check(){