1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 /* 27 * Copyright (c) 2013, Joyent, Inc. All rights reserved. 28 */ 29 30 #ifndef _SYS_DDI_TIMER_H 31 #define _SYS_DDI_TIMER_H 32 33 #include <sys/list.h> 34 #include <sys/taskq_impl.h> 35 #include <sys/cyclic.h> 36 37 #ifdef __cplusplus 38 extern "C" { 39 #endif 40 41 #ifdef _KERNEL 42 43 /* 44 * Used by the new timeout functions 45 */ 46 typedef struct __timeout *timeout_t; 47 48 typedef enum ddi_periodic_flags { 49 DPF_DISPATCHED = 0x01, 50 DPF_EXECUTING = 0x02, 51 DPF_CANCELLED = 0x04 52 } ddi_periodic_flags_t; 53 54 typedef struct ddi_periodic_impl { 55 struct list_node dpr_link; /* protected by periodics_lock */ 56 struct list_node dpr_softint_link; /* only used when DPF_DISPATCHED */ 57 id_t dpr_id; 58 hrtime_t dpr_interval; 59 60 kmutex_t dpr_lock; 61 kcondvar_t dpr_cv; 62 ddi_periodic_flags_t dpr_flags; 63 uint_t dpr_level; /* 0 <= dpr_level <= 10 */ 64 taskq_ent_t dpr_taskq_ent; /* only used for level of 0 */ 65 uint64_t dpr_fire_count; 66 67 cyclic_id_t dpr_cyclic_id; 68 69 void (*dpr_handler)(void *); 70 void *dpr_arg; 71 } ddi_periodic_impl_t; 72 73 /* 74 * Internal implementation functions for the DDI periodic interface. 75 */ 76 void ddi_periodic_init(void); 77 void ddi_periodic_softintr(int level); 78 timeout_t i_timeout(void (*)(void *), void *, hrtime_t, int); 79 void i_untimeout(timeout_t); 80 81 #endif /* _KERNEL */ 82 83 #ifdef __cplusplus 84 } 85 #endif 86 87 #endif /* _SYS_DDI_TIMER_H */