devreg.c

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00001 /*
00002  * Copyright (C) 2001-2003 by egnite Software GmbH. All rights reserved.
00003  *
00004  * Redistribution and use in source and binary forms, with or without
00005  * modification, are permitted provided that the following conditions
00006  * are met:
00007  *
00008  * 1. Redistributions of source code must retain the above copyright
00009  *    notice, this list of conditions and the following disclaimer.
00010  * 2. Redistributions in binary form must reproduce the above copyright
00011  *    notice, this list of conditions and the following disclaimer in the
00012  *    documentation and/or other materials provided with the distribution.
00013  * 3. Neither the name of the copyright holders nor the names of
00014  *    contributors may be used to endorse or promote products derived
00015  *    from this software without specific prior written permission.
00016  *
00017  * THIS SOFTWARE IS PROVIDED BY EGNITE SOFTWARE GMBH AND CONTRIBUTORS
00018  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
00019  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
00020  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL EGNITE
00021  * SOFTWARE GMBH OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
00022  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
00023  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
00024  * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
00025  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
00026  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
00027  * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
00028  * SUCH DAMAGE.
00029  *
00030  * For additional information see http://www.ethernut.de/
00031  *
00032  */
00033 
00034 /*
00035  * $Log: devreg.c,v $
00036  * Revision 1.5  2008/08/11 07:00:33  haraldkipp
00037  * BSD types replaced by stdint types (feature request #1282721).
00038  *
00039  * Revision 1.4  2004/09/08 10:24:26  haraldkipp
00040  * RAMSTART is too platform dependant
00041  *
00042  * Revision 1.3  2004/03/18 13:42:50  haraldkipp
00043  * Deprecated header file removed
00044  *
00045  * Revision 1.2  2004/03/16 16:48:45  haraldkipp
00046  * Added Jan Dubiec's H8/300 port.
00047  *
00048  * Revision 1.1.1.1  2003/05/09 14:41:47  haraldkipp
00049  * Initial using 3.2.1
00050  *
00051  * Revision 1.3  2003/04/21 17:06:40  harald
00052  * Device init moved to registration
00053  *
00054  * Revision 1.2  2003/02/04 18:15:56  harald
00055  * Version 3 released
00056  *
00057  * Revision 1.1  2003/01/17 18:55:24  harald
00058  * Device routines splitted
00059  *
00060  */
00061 
00062 #include <string.h>
00063 
00064 #include <dev/uart.h>
00065 
00070 
00074 NUTDEVICE *nutDeviceList = 0;
00075 
00083 NUTDEVICE *NutDeviceLookup(CONST char *name)
00084 {
00085     NUTDEVICE *dev;
00086 
00087     for (dev = nutDeviceList; dev; dev = dev->dev_next)
00088         if (strcmp(dev->dev_name, name) == 0)
00089             break;
00090 
00091     return dev;
00092 }
00093 
00121 int NutRegisterDevice(NUTDEVICE * dev, uptr_t base, uint8_t irq)
00122 {
00123     int rc = -1;
00124 
00125     //if ((void *) dev >= RAMSTART) {
00126     if (dev) {
00127         if (base)
00128             dev->dev_base = base;
00129         if (irq)
00130             dev->dev_irq = irq;
00131 
00132         if (NutDeviceLookup(dev->dev_name) == 0) {
00133             if(dev->dev_init == 0 || (*dev->dev_init)(dev) == 0) {
00134                 dev->dev_next = nutDeviceList;
00135                 nutDeviceList = dev;
00136                 rc = 0;
00137             }
00138         }
00139     }
00140     return rc;
00141 }
00142 

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