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 #if defined(SIG_SPM_READY) || defined(iv_SPM_READY) 00084 00085 static int AvrSpmRdyIrqCtl(int cmd, void *param); 00086 00087 IRQ_HANDLER sig_SPM_READY = { 00088 #ifdef NUT_PERFMON 00089 0, /* Interrupt counter, ir_count. */ 00090 #endif 00091 NULL, /* Passed argument, ir_arg. */ 00092 NULL, /* Handler subroutine, ir_handler. */ 00093 AvrSpmRdyIrqCtl /* Interrupt control, ir_ctl. */ 00094 }; 00095 00109 static int AvrSpmRdyIrqCtl(int cmd, void *param) 00110 { 00111 int rc = 0; 00112 u_int *ival = (u_int *) param; 00113 int_fast8_t enabled = bit_is_set(SPMCSR, SPMIE); 00114 00115 /* Disable interrupt. */ 00116 cbi(EECR, EERIE); 00117 00118 switch (cmd) { 00119 case NUT_IRQCTL_INIT: 00120 case NUT_IRQCTL_DISABLE: 00121 enabled = 0; 00122 break; 00123 case NUT_IRQCTL_ENABLE: 00124 enabled = 1; 00125 break; 00126 case NUT_IRQCTL_GETPRIO: 00127 *ival = 0; 00128 break; 00129 #ifdef NUT_PERFMON 00130 case NUT_IRQCTL_GETCOUNT: 00131 *ival = (u_int) sig_SPM_READY.ir_count; 00132 sig_SPM_READY.ir_count = 0; 00133 break; 00134 #endif 00135 default: 00136 rc = -1; 00137 break; 00138 } 00139 00140 /* Enable interrupt. */ 00141 if (enabled) { 00142 sbi(SPMCSR, SPMIE); 00143 } 00144 return rc; 00145 } 00146 00150 #ifdef __IMAGECRAFT__ 00151 #pragma interrupt_handler SIG_SPM_READY:iv_SPM_READY 00152 #endif 00153 NUTSIGNAL(SIG_SPM_READY, sig_SPM_READY) 00154 #endif 00155