1 /* $NetBSD: intr.h,v 1.24 2008/01/04 18:03:01 uwe Exp $ */ 2 3 /*- 4 * Copyright (c) 2002 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the NetBSD 18 * Foundation, Inc. and its contributors. 19 * 4. Neither the name of The NetBSD Foundation nor the names of its 20 * contributors may be used to endorse or promote products derived 21 * from this software without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 24 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 25 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 26 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 27 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 28 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 29 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 30 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 31 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 32 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 33 * POSSIBILITY OF SUCH DAMAGE. 34 */ 35 36 #ifndef _SH3_INTR_H_ 37 #define _SH3_INTR_H_ 38 39 #include <sh3/psl.h> 40 41 /* Interrupt sharing types. */ 42 #define IST_NONE 0 /* none */ 43 #define IST_PULSE 1 /* pulsed */ 44 #define IST_EDGE 2 /* edge-triggered */ 45 #define IST_LEVEL 3 /* level-triggered */ 46 47 /* Interrupt priority levels */ 48 #define _IPL_N 8 49 #define _IPL_NSOFT 4 50 51 #define IPL_NONE 0 /* nothing */ 52 #define IPL_SOFTCLOCK 1 53 #define IPL_SOFTBIO 2 /* timeouts */ 54 #define IPL_SOFTNET 3 /* protocol stacks */ 55 #define IPL_SOFTSERIAL 4 /* serial */ 56 57 struct intc_intrhand { 58 int (*ih_func)(void *); 59 void *ih_arg; 60 int ih_level; /* SR.I[0:3] value */ 61 int ih_evtcode; /* INTEVT or INTEVT2(SH7709/SH7709A) */ 62 int ih_idx; /* evtcode -> intrhand mapping */ 63 }; 64 65 /* from 0x200 by 0x20 -> from 0 by 1 */ 66 #define EVTCODE_TO_MAP_INDEX(x) (((x) >> 5) - 0x10) 67 #define EVTCODE_TO_IH_INDEX(x) \ 68 __intc_evtcode_to_ih[EVTCODE_TO_MAP_INDEX(x)] 69 #define EVTCODE_IH(x) (&__intc_intrhand[EVTCODE_TO_IH_INDEX(x)]) 70 extern int8_t __intc_evtcode_to_ih[]; 71 extern struct intc_intrhand __intc_intrhand[]; 72 73 void intc_init(void); 74 void *intc_intr_establish(int, int, int, int (*)(void *), void *); 75 void intc_intr_disestablish(void *); 76 void intc_intr_enable(int); 77 void intc_intr_disable(int); 78 void intc_intr(int, int, int); 79 80 void intpri_intr_priority(int evtcode, int level); 81 82 #endif /* !_SH3_INTR_H_ */ 83