00001 /* 00002 * Copyright (C) 2001-2005 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 00076 #include <dev/irqreg.h> 00077 00082 00083 static int AvrEepromRdyIrqCtl(int cmd, void *param); 00084 00085 IRQ_HANDLER sig_EEPROM_READY = { 00086 #ifdef NUT_PERFMON 00087 0, /* Interrupt counter, ir_count. */ 00088 #endif 00089 NULL, /* Passed argument, ir_arg. */ 00090 NULL, /* Handler subroutine, ir_handler. */ 00091 AvrEepromRdyIrqCtl /* Interrupt control, ir_ctl. */ 00092 }; 00093 00107 static int AvrEepromRdyIrqCtl(int cmd, void *param) 00108 { 00109 int rc = 0; 00110 u_int *ival = (u_int *) param; 00111 int_fast8_t enabled = bit_is_set(EECR, EERIE); 00112 00113 /* Disable interrupt. */ 00114 cbi(EECR, EERIE); 00115 00116 switch (cmd) { 00117 case NUT_IRQCTL_INIT: 00118 case NUT_IRQCTL_DISABLE: 00119 enabled = 0; 00120 break; 00121 case NUT_IRQCTL_ENABLE: 00122 enabled = 1; 00123 break; 00124 case NUT_IRQCTL_GETPRIO: 00125 *ival = 0; 00126 break; 00127 #ifdef NUT_PERFMON 00128 case NUT_IRQCTL_GETCOUNT: 00129 *ival = (u_int) sig_EEPROM_READY.ir_count; 00130 sig_EEPROM_READY.ir_count = 0; 00131 break; 00132 #endif 00133 default: 00134 rc = -1; 00135 break; 00136 } 00137 00138 /* Enable interrupt. */ 00139 if (enabled) { 00140 sbi(EECR, EERIE); 00141 } 00142 return rc; 00143 } 00144 00145 #if defined(SIG_EEPROM_READY) || defined(iv_EE_READY) 00146 00150 #ifdef __IMAGECRAFT__ 00151 #pragma interrupt_handler SIG_EEPROM_READY:iv_EE_READY 00152 #endif 00153 NUTSIGNAL(SIG_EEPROM_READY, sig_EEPROM_READY) 00154 #else 00155 00159 #ifdef __IMAGECRAFT__ 00160 #pragma interrupt_handler SIG_EEPROM:iv_EE_READY 00161 #endif 00162 NUTSIGNAL(SIG_EEPROM, sig_EEPROM_READY) 00163 #endif 00164