CanFestival: drivers/hcs12/interrupt.c Source File

00001 /*
nico@215: 00002 This file is part of CanFestival, a library implementing CanOpen Stack. 
nico@215: 00003 
nico@215: 00004 Copyright (C): Edouard TISSERANT and Francis DUPIN
nico@215: 00005 
nico@215: 00006 See COPYING file for copyrights details.
nico@215: 00007 
nico@215: 00008 This library is free software; you can redistribute it and/or
nico@215: 00009 modify it under the terms of the GNU Lesser General Public
nico@215: 00010 License as published by the Free Software Foundation; either
nico@215: 00011 version 2.1 of the License, or (at your option) any later version.
nico@215: 00012 
nico@215: 00013 This library is distributed in the hope that it will be useful,
nico@215: 00014 but WITHOUT ANY WARRANTY; without even the implied warranty of
nico@215: 00015 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
nico@215: 00016 Lesser General Public License for more details.
nico@215: 00017 
nico@215: 00018 You should have received a copy of the GNU Lesser General Public
nico@215: 00019 License along with this library; if not, write to the Free Software
nico@215: 00020 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
nico@215: 00021 */
nico@215: 00022 
nico@215: 00023 /*
nico@215: 00024 Functions called by interrupts vectors.
nico@215: 00025 */
nico@215: 00026 /*
nico@215: 00027 This is a part of the driver, of course !
nico@215: 00028 But you have to put your code in this functions,
nico@215: 00029 if you plan to use interruptions.
nico@215: 00030 */
nico@215: 00031 
nico@215: 00032 #include "../include/data.h"
nico@215: 00033 #include "../include/hcs12/applicfg.h"
nico@215: 00034 #include "../include/hcs12/error.h"
nico@215: 00035 #include "../include/hcs12/candriver.h"
nico@215: 00036 #include "../include/hcs12/asm-m68hc12/regs.h"
nico@215: 00037 #include "../include/hcs12/asm-m68hc12/portsaccess.h"
nico@215: 00038 #include "../include/hcs12/asm-m68hc12/ports_def.h"
nico@215: 00039 #include "../include/hcs12/asm-m68hc12/ports.h"
nico@215: 00040 #include "../include/hcs12/interrupt.h"
nico@215: 00041 
etisserant@240: 00042 extern volatile char msgRecu;
etisserant@240: 00043 extern volatile Message canMsgRcv;
nico@215: 00044 
nico@215: 00045 
nico@215: 00046 
nico@215: 00047 /* Inhibe les interruptions */
nico@215: 00048 
etisserant@240: 00049 void lock (void)
nico@215: 00050 {
nico@215: 00051    unsigned short mask;
etisserant@240: 00052    __asm__ __volatile__ ("tpa\n\tsei" : "=d"(mask));
nico@215: 00053 
nico@215: 00054 }
nico@215: 00055 
nico@215: 00056 /* Autorise les interruptions */
etisserant@240: 00057 void unlock (void)
nico@215: 00058 { 
etisserant@240: 00059    __asm__ __volatile__ ("cli");
nico@215: 00060 }
nico@215: 00061 
nico@215: 00062 
nico@215: 00063 
nico@215: 00064 
etisserant@240: