Annotation of sys/arch/sh/include/intr.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: intr.h,v 1.4 2007/06/21 04:37:54 miod Exp $ */
! 2: /* $NetBSD: intr.h,v 1.22 2006/01/24 23:51:42 uwe Exp $ */
! 3:
! 4: /*-
! 5: * Copyright (c) 2002 The NetBSD Foundation, Inc.
! 6: * All rights reserved.
! 7: *
! 8: * Redistribution and use in source and binary forms, with or without
! 9: * modification, are permitted provided that the following conditions
! 10: * are met:
! 11: * 1. Redistributions of source code must retain the above copyright
! 12: * notice, this list of conditions and the following disclaimer.
! 13: * 2. Redistributions in binary form must reproduce the above copyright
! 14: * notice, this list of conditions and the following disclaimer in the
! 15: * documentation and/or other materials provided with the distribution.
! 16: * 3. All advertising materials mentioning features or use of this software
! 17: * must display the following acknowledgement:
! 18: * This product includes software developed by the NetBSD
! 19: * Foundation, Inc. and its contributors.
! 20: * 4. Neither the name of The NetBSD Foundation nor the names of its
! 21: * contributors may be used to endorse or promote products derived
! 22: * from this software without specific prior written permission.
! 23: *
! 24: * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
! 25: * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
! 26: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
! 27: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
! 28: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
! 29: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
! 30: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
! 31: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
! 32: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
! 33: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
! 34: * POSSIBILITY OF SUCH DAMAGE.
! 35: */
! 36:
! 37: #ifndef _SH_INTR_H_
! 38: #define _SH_INTR_H_
! 39:
! 40: #ifdef _KERNEL
! 41:
! 42: #include <sys/device.h>
! 43: #include <sys/evcount.h>
! 44: #include <sys/lock.h>
! 45: #include <sys/queue.h>
! 46: #include <sh/psl.h>
! 47:
! 48: /* Interrupt sharing types. */
! 49: #define IST_NONE 0 /* none */
! 50: #define IST_PULSE 1 /* pulsed */
! 51: #define IST_EDGE 2 /* edge-triggered */
! 52: #define IST_LEVEL 3 /* level-triggered */
! 53:
! 54: /* Interrupt priority levels */
! 55: #define _IPL_N 15
! 56: #define _IPL_NSOFT 4
! 57:
! 58: #define IPL_NONE 0 /* nothing */
! 59: #define IPL_SOFT 1
! 60: #define IPL_SOFTCLOCK 2 /* timeouts */
! 61: #define IPL_SOFTNET 3 /* protocol stacks */
! 62: #define IPL_SOFTSERIAL 4 /* serial */
! 63:
! 64: #define IPL_SOFTNAMES { \
! 65: "misc", \
! 66: "clock", \
! 67: "net", \
! 68: "serial", \
! 69: }
! 70:
! 71: struct intc_intrhand {
! 72: int (*ih_func)(void *);
! 73: void *ih_arg;
! 74: int ih_level; /* SR.I[0:3] value */
! 75: int ih_evtcode; /* INTEVT or INTEVT2(SH7709/SH7709A) */
! 76: int ih_idx; /* evtcode -> intrhand mapping */
! 77: int ih_irq;
! 78: struct evcount ih_count;
! 79: const char *ih_name;
! 80: };
! 81:
! 82: /* from 0x200 by 0x20 -> from 0 by 1 */
! 83: #define EVTCODE_TO_MAP_INDEX(x) (((x) >> 5) - 0x10)
! 84: #define EVTCODE_TO_IH_INDEX(x) \
! 85: __intc_evtcode_to_ih[EVTCODE_TO_MAP_INDEX(x)]
! 86: #define EVTCODE_IH(x) (&__intc_intrhand[EVTCODE_TO_IH_INDEX(x)])
! 87: extern int8_t __intc_evtcode_to_ih[];
! 88: extern struct intc_intrhand __intc_intrhand[];
! 89:
! 90: void intc_init(void);
! 91: void *intc_intr_establish(int, int, int, int (*)(void *), void *, const char *);
! 92: void intc_intr_disestablish(void *);
! 93: void intc_intr_enable(int);
! 94: void intc_intr_disable(int);
! 95: void intc_intr(int, int, int);
! 96:
! 97: void intpri_intr_priority(int evtcode, int level);
! 98:
! 99: /*
! 100: * software simulated interrupt
! 101: */
! 102: struct sh_soft_intrhand {
! 103: TAILQ_ENTRY(sh_soft_intrhand) sih_q;
! 104: struct sh_soft_intr *sih_intrhead;
! 105: void (*sih_fn)(void *);
! 106: void *sih_arg;
! 107: int sih_pending;
! 108: };
! 109:
! 110: struct sh_soft_intr {
! 111: TAILQ_HEAD(, sh_soft_intrhand) softintr_q;
! 112: struct simplelock softintr_slock;
! 113: unsigned long softintr_ipl;
! 114: };
! 115:
! 116: #define softintr_schedule(arg) \
! 117: do { \
! 118: struct sh_soft_intrhand *__sih = (arg); \
! 119: struct sh_soft_intr *__si = __sih->sih_intrhead; \
! 120: int __s; \
! 121: \
! 122: __s = _cpu_intr_suspend(); \
! 123: simple_lock(&__si->softintr_slock); \
! 124: if (__sih->sih_pending == 0) { \
! 125: TAILQ_INSERT_TAIL(&__si->softintr_q, __sih, sih_q); \
! 126: __sih->sih_pending = 1; \
! 127: setsoft(__si->softintr_ipl); \
! 128: } \
! 129: simple_unlock(&__si->softintr_slock); \
! 130: _cpu_intr_resume(__s); \
! 131: } while (/*CONSTCOND*/0)
! 132:
! 133: void softintr_init(void);
! 134: void *softintr_establish(int, void (*)(void *), void *);
! 135: void softintr_disestablish(void *);
! 136: void softintr_dispatch(int);
! 137: void setsoft(int);
! 138:
! 139: /* XXX For legacy software interrupts. */
! 140: extern struct sh_soft_intrhand *softnet_intrhand;
! 141:
! 142: #define setsoftnet() softintr_schedule(softnet_intrhand)
! 143:
! 144: #endif /* _KERNEL */
! 145:
! 146: #endif /* !_SH_INTR_H_ */
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