1*7c478bd9Sstevel@tonic-gate /* 2*7c478bd9Sstevel@tonic-gate * CDDL HEADER START 3*7c478bd9Sstevel@tonic-gate * 4*7c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*7c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*7c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*7c478bd9Sstevel@tonic-gate * with the License. 8*7c478bd9Sstevel@tonic-gate * 9*7c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*7c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*7c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 12*7c478bd9Sstevel@tonic-gate * and limitations under the License. 13*7c478bd9Sstevel@tonic-gate * 14*7c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*7c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*7c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*7c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*7c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*7c478bd9Sstevel@tonic-gate * 20*7c478bd9Sstevel@tonic-gate * CDDL HEADER END 21*7c478bd9Sstevel@tonic-gate */ 22*7c478bd9Sstevel@tonic-gate /* Copyright (c) 1990, 1991 UNIX System Laboratories, Inc. */ 23*7c478bd9Sstevel@tonic-gate /* Copyright (c) 1984, 1986, 1987, 1988, 1989, 1990 AT&T */ 24*7c478bd9Sstevel@tonic-gate /* All Rights Reserved */ 25*7c478bd9Sstevel@tonic-gate 26*7c478bd9Sstevel@tonic-gate /* 27*7c478bd9Sstevel@tonic-gate * Copyright (c) 1997, by Sun Microsystems, Inc. 28*7c478bd9Sstevel@tonic-gate * All rights reserved. 29*7c478bd9Sstevel@tonic-gate */ 30*7c478bd9Sstevel@tonic-gate 31*7c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 32*7c478bd9Sstevel@tonic-gate 33*7c478bd9Sstevel@tonic-gate #include <sys/param.h> 34*7c478bd9Sstevel@tonic-gate #include <sys/types.h> 35*7c478bd9Sstevel@tonic-gate #include <sys/sysmacros.h> 36*7c478bd9Sstevel@tonic-gate #include <sys/systm.h> 37*7c478bd9Sstevel@tonic-gate #include <sys/hrtcntl.h> 38*7c478bd9Sstevel@tonic-gate #include <sys/errno.h> 39*7c478bd9Sstevel@tonic-gate #include <sys/hrtsys.h> 40*7c478bd9Sstevel@tonic-gate #include <sys/time.h> 41*7c478bd9Sstevel@tonic-gate #include <sys/timer.h> 42*7c478bd9Sstevel@tonic-gate #include <sys/cmn_err.h> 43*7c478bd9Sstevel@tonic-gate 44*7c478bd9Sstevel@tonic-gate /* 45*7c478bd9Sstevel@tonic-gate * This file contains the code that manages the hardware clocks and 46*7c478bd9Sstevel@tonic-gate * timers. We must provide UNIX with a HZ resolution clock and give 47*7c478bd9Sstevel@tonic-gate * the user an interface to the timers through system calls. 48*7c478bd9Sstevel@tonic-gate */ 49*7c478bd9Sstevel@tonic-gate 50*7c478bd9Sstevel@tonic-gate static int hrt_checkres(ulong res); 51*7c478bd9Sstevel@tonic-gate static int hrt_bsd_cancel(int clock); 52*7c478bd9Sstevel@tonic-gate static int hrt_checkclock(register int clock); 53*7c478bd9Sstevel@tonic-gate 54*7c478bd9Sstevel@tonic-gate /* 55*7c478bd9Sstevel@tonic-gate * Argument vectors for the various flavors of hrtsys(). 56*7c478bd9Sstevel@tonic-gate */ 57*7c478bd9Sstevel@tonic-gate 58*7c478bd9Sstevel@tonic-gate #define HRTCNTL 0 59*7c478bd9Sstevel@tonic-gate #define HRTALARM 1 60*7c478bd9Sstevel@tonic-gate #define HRTSLEEP 2 61*7c478bd9Sstevel@tonic-gate #define HRTCANCEL 3 62*7c478bd9Sstevel@tonic-gate 63*7c478bd9Sstevel@tonic-gate struct hrtsysa { 64*7c478bd9Sstevel@tonic-gate int opcode; 65*7c478bd9Sstevel@tonic-gate }; 66*7c478bd9Sstevel@tonic-gate 67*7c478bd9Sstevel@tonic-gate struct hrtcntla { 68*7c478bd9Sstevel@tonic-gate int opcode; 69*7c478bd9Sstevel@tonic-gate int cmd; 70*7c478bd9Sstevel@tonic-gate int clk; 71*7c478bd9Sstevel@tonic-gate interval_t *intp; 72*7c478bd9Sstevel@tonic-gate hrtimes_t *hrtp; 73*7c478bd9Sstevel@tonic-gate }; 74*7c478bd9Sstevel@tonic-gate 75*7c478bd9Sstevel@tonic-gate struct hrtalarma { 76*7c478bd9Sstevel@tonic-gate int opcode; 77*7c478bd9Sstevel@tonic-gate hrtcmd_t *cmdp; 78*7c478bd9Sstevel@tonic-gate int cmds; 79*7c478bd9Sstevel@tonic-gate }; 80*7c478bd9Sstevel@tonic-gate 81*7c478bd9Sstevel@tonic-gate 82*7c478bd9Sstevel@tonic-gate /* 83*7c478bd9Sstevel@tonic-gate * Hrtcntl (time control) system call. 84*7c478bd9Sstevel@tonic-gate */ 85*7c478bd9Sstevel@tonic-gate 86*7c478bd9Sstevel@tonic-gate 87*7c478bd9Sstevel@tonic-gate /*ARGSUSED1*/ 88*7c478bd9Sstevel@tonic-gate int 89*7c478bd9Sstevel@tonic-gate hrtcntl(uap, rvp) 90*7c478bd9Sstevel@tonic-gate register struct hrtcntla *uap; 91*7c478bd9Sstevel@tonic-gate rval_t *rvp; 92*7c478bd9Sstevel@tonic-gate { 93*7c478bd9Sstevel@tonic-gate register int error = 0; 94*7c478bd9Sstevel@tonic-gate hrtimes_t temptofd; 95*7c478bd9Sstevel@tonic-gate 96*7c478bd9Sstevel@tonic-gate switch (uap->cmd) { 97*7c478bd9Sstevel@tonic-gate 98*7c478bd9Sstevel@tonic-gate case HRT_TOFD: /* Get the time of day */ 99*7c478bd9Sstevel@tonic-gate 100*7c478bd9Sstevel@tonic-gate if (uap->clk != CLK_STD) { 101*7c478bd9Sstevel@tonic-gate error = EINVAL; 102*7c478bd9Sstevel@tonic-gate break; 103*7c478bd9Sstevel@tonic-gate } 104*7c478bd9Sstevel@tonic-gate 105*7c478bd9Sstevel@tonic-gate if (copyin((caddr_t)uap->hrtp, 106*7c478bd9Sstevel@tonic-gate (caddr_t)&temptofd, sizeof (hrtimes_t))) { 107*7c478bd9Sstevel@tonic-gate error = EFAULT; 108*7c478bd9Sstevel@tonic-gate break; 109*7c478bd9Sstevel@tonic-gate } 110*7c478bd9Sstevel@tonic-gate 111*7c478bd9Sstevel@tonic-gate if ((error = hrt_checkres(temptofd.hrt_res))) 112*7c478bd9Sstevel@tonic-gate break; 113*7c478bd9Sstevel@tonic-gate 114*7c478bd9Sstevel@tonic-gate hrt_gettofd(&temptofd); 115*7c478bd9Sstevel@tonic-gate 116*7c478bd9Sstevel@tonic-gate if (copyout((caddr_t)&temptofd, 117*7c478bd9Sstevel@tonic-gate (caddr_t)uap->hrtp, sizeof (hrtimes_t))) 118*7c478bd9Sstevel@tonic-gate error = EFAULT; 119*7c478bd9Sstevel@tonic-gate 120*7c478bd9Sstevel@tonic-gate break; 121*7c478bd9Sstevel@tonic-gate 122*7c478bd9Sstevel@tonic-gate default: 123*7c478bd9Sstevel@tonic-gate error = EINVAL; 124*7c478bd9Sstevel@tonic-gate break; 125*7c478bd9Sstevel@tonic-gate } 126*7c478bd9Sstevel@tonic-gate return (error); 127*7c478bd9Sstevel@tonic-gate } 128*7c478bd9Sstevel@tonic-gate 129*7c478bd9Sstevel@tonic-gate /* 130*7c478bd9Sstevel@tonic-gate * Hrtalarm (start one or more alarms) system call. 131*7c478bd9Sstevel@tonic-gate */ 132*7c478bd9Sstevel@tonic-gate 133*7c478bd9Sstevel@tonic-gate int 134*7c478bd9Sstevel@tonic-gate hrtalarm(uap, rvp) 135*7c478bd9Sstevel@tonic-gate register struct hrtalarma *uap; 136*7c478bd9Sstevel@tonic-gate rval_t *rvp; 137*7c478bd9Sstevel@tonic-gate { 138*7c478bd9Sstevel@tonic-gate register hrtcmd_t *cp; 139*7c478bd9Sstevel@tonic-gate hrtcmd_t *hrcmdp; 140*7c478bd9Sstevel@tonic-gate uint alarm_cnt; 141*7c478bd9Sstevel@tonic-gate int cnt; 142*7c478bd9Sstevel@tonic-gate int error = 0; 143*7c478bd9Sstevel@tonic-gate int cmd; 144*7c478bd9Sstevel@tonic-gate hrtcmd_t timecmd; 145*7c478bd9Sstevel@tonic-gate hrtimes_t delay_ht; 146*7c478bd9Sstevel@tonic-gate 147*7c478bd9Sstevel@tonic-gate 148*7c478bd9Sstevel@tonic-gate /* 149*7c478bd9Sstevel@tonic-gate * Return EINVAL for negative and zero counts. 150*7c478bd9Sstevel@tonic-gate */ 151*7c478bd9Sstevel@tonic-gate 152*7c478bd9Sstevel@tonic-gate if (uap->cmds <= 0) 153*7c478bd9Sstevel@tonic-gate return (EINVAL); 154*7c478bd9Sstevel@tonic-gate 155*7c478bd9Sstevel@tonic-gate cp = &timecmd; 156*7c478bd9Sstevel@tonic-gate hrcmdp = uap->cmdp; 157*7c478bd9Sstevel@tonic-gate alarm_cnt = 0; 158*7c478bd9Sstevel@tonic-gate 159*7c478bd9Sstevel@tonic-gate /* Loop through and process each command. */ 160*7c478bd9Sstevel@tonic-gate 161*7c478bd9Sstevel@tonic-gate for (cnt = 0; cnt < uap->cmds; cnt++, hrcmdp++) { 162*7c478bd9Sstevel@tonic-gate 163*7c478bd9Sstevel@tonic-gate if (copyin((caddr_t)hrcmdp, (caddr_t)cp, sizeof (hrtcmd_t))) 164*7c478bd9Sstevel@tonic-gate return (EFAULT); 165*7c478bd9Sstevel@tonic-gate 166*7c478bd9Sstevel@tonic-gate cmd = cp->hrtc_cmd; 167*7c478bd9Sstevel@tonic-gate 168*7c478bd9Sstevel@tonic-gate /* 169*7c478bd9Sstevel@tonic-gate * If we try to post a Berkley Timer remove 170*7c478bd9Sstevel@tonic-gate * previous timers. 171*7c478bd9Sstevel@tonic-gate */ 172*7c478bd9Sstevel@tonic-gate 173*7c478bd9Sstevel@tonic-gate if (cmd == HRT_BSD || cmd == HRT_BSD_REP) 174*7c478bd9Sstevel@tonic-gate (void) hrt_bsd_cancel(cp->hrtc_clk); 175*7c478bd9Sstevel@tonic-gate 176*7c478bd9Sstevel@tonic-gate /* See what kind of command we have. */ 177*7c478bd9Sstevel@tonic-gate 178*7c478bd9Sstevel@tonic-gate switch (cmd) { 179*7c478bd9Sstevel@tonic-gate case HRT_BSD: /* one-shot timer */ 180*7c478bd9Sstevel@tonic-gate { 181*7c478bd9Sstevel@tonic-gate struct itimerval itv; 182*7c478bd9Sstevel@tonic-gate u_int which; 183*7c478bd9Sstevel@tonic-gate 184*7c478bd9Sstevel@tonic-gate if (error = hrt_checkclock(cp->hrtc_clk)) 185*7c478bd9Sstevel@tonic-gate break; 186*7c478bd9Sstevel@tonic-gate switch (cp->hrtc_clk) { 187*7c478bd9Sstevel@tonic-gate case CLK_STD: 188*7c478bd9Sstevel@tonic-gate which = ITIMER_REAL; 189*7c478bd9Sstevel@tonic-gate break; 190*7c478bd9Sstevel@tonic-gate case CLK_USERVIRT: 191*7c478bd9Sstevel@tonic-gate which = ITIMER_VIRTUAL; 192*7c478bd9Sstevel@tonic-gate break; 193*7c478bd9Sstevel@tonic-gate case CLK_PROCVIRT: 194*7c478bd9Sstevel@tonic-gate which = ITIMER_PROF; 195*7c478bd9Sstevel@tonic-gate break; 196*7c478bd9Sstevel@tonic-gate default: 197*7c478bd9Sstevel@tonic-gate error = EINVAL; 198*7c478bd9Sstevel@tonic-gate goto bad; 199*7c478bd9Sstevel@tonic-gate } 200*7c478bd9Sstevel@tonic-gate itv.it_value.tv_sec = cp->hrtc_int.hrt_secs; 201*7c478bd9Sstevel@tonic-gate itv.it_value.tv_usec = cp->hrtc_int.hrt_rem; 202*7c478bd9Sstevel@tonic-gate itv.it_interval.tv_sec = 0; 203*7c478bd9Sstevel@tonic-gate itv.it_interval.tv_usec = 0; 204*7c478bd9Sstevel@tonic-gate (void) xsetitimer(which, &itv, 1); 205*7c478bd9Sstevel@tonic-gate 206*7c478bd9Sstevel@tonic-gate break; 207*7c478bd9Sstevel@tonic-gate } 208*7c478bd9Sstevel@tonic-gate 209*7c478bd9Sstevel@tonic-gate case HRT_BSD_REP: 210*7c478bd9Sstevel@tonic-gate { 211*7c478bd9Sstevel@tonic-gate struct itimerval itv; 212*7c478bd9Sstevel@tonic-gate u_int which; 213*7c478bd9Sstevel@tonic-gate 214*7c478bd9Sstevel@tonic-gate switch (cp->hrtc_clk) { 215*7c478bd9Sstevel@tonic-gate case CLK_STD: 216*7c478bd9Sstevel@tonic-gate which = ITIMER_REAL; 217*7c478bd9Sstevel@tonic-gate break; 218*7c478bd9Sstevel@tonic-gate case CLK_USERVIRT: 219*7c478bd9Sstevel@tonic-gate which = ITIMER_VIRTUAL; 220*7c478bd9Sstevel@tonic-gate break; 221*7c478bd9Sstevel@tonic-gate case CLK_PROCVIRT: 222*7c478bd9Sstevel@tonic-gate which = ITIMER_PROF; 223*7c478bd9Sstevel@tonic-gate break; 224*7c478bd9Sstevel@tonic-gate default: 225*7c478bd9Sstevel@tonic-gate error = EINVAL; 226*7c478bd9Sstevel@tonic-gate goto bad; 227*7c478bd9Sstevel@tonic-gate } 228*7c478bd9Sstevel@tonic-gate itv.it_value.tv_sec = cp->hrtc_tod.hrt_secs; 229*7c478bd9Sstevel@tonic-gate itv.it_value.tv_usec = cp->hrtc_tod.hrt_rem; 230*7c478bd9Sstevel@tonic-gate itv.it_interval.tv_sec = cp->hrtc_int.hrt_secs; 231*7c478bd9Sstevel@tonic-gate itv.it_interval.tv_usec = cp->hrtc_int.hrt_rem; 232*7c478bd9Sstevel@tonic-gate (void) xsetitimer(which, &itv, 1); 233*7c478bd9Sstevel@tonic-gate 234*7c478bd9Sstevel@tonic-gate break; 235*7c478bd9Sstevel@tonic-gate } 236*7c478bd9Sstevel@tonic-gate 237*7c478bd9Sstevel@tonic-gate case HRT_BSD_PEND: 238*7c478bd9Sstevel@tonic-gate { 239*7c478bd9Sstevel@tonic-gate struct itimerval itv; 240*7c478bd9Sstevel@tonic-gate u_int which; 241*7c478bd9Sstevel@tonic-gate 242*7c478bd9Sstevel@tonic-gate switch (cp->hrtc_clk) { 243*7c478bd9Sstevel@tonic-gate case CLK_STD: 244*7c478bd9Sstevel@tonic-gate which = ITIMER_REAL; 245*7c478bd9Sstevel@tonic-gate break; 246*7c478bd9Sstevel@tonic-gate case CLK_USERVIRT: 247*7c478bd9Sstevel@tonic-gate which = ITIMER_VIRTUAL; 248*7c478bd9Sstevel@tonic-gate break; 249*7c478bd9Sstevel@tonic-gate case CLK_PROCVIRT: 250*7c478bd9Sstevel@tonic-gate which = ITIMER_PROF; 251*7c478bd9Sstevel@tonic-gate break; 252*7c478bd9Sstevel@tonic-gate default: 253*7c478bd9Sstevel@tonic-gate error = EINVAL; 254*7c478bd9Sstevel@tonic-gate goto bad; 255*7c478bd9Sstevel@tonic-gate } 256*7c478bd9Sstevel@tonic-gate (void) xgetitimer(which, &itv, 1); 257*7c478bd9Sstevel@tonic-gate delay_ht.hrt_secs = itv.it_value.tv_sec; 258*7c478bd9Sstevel@tonic-gate delay_ht.hrt_rem = itv.it_value.tv_usec; 259*7c478bd9Sstevel@tonic-gate } 260*7c478bd9Sstevel@tonic-gate 261*7c478bd9Sstevel@tonic-gate if (copyout((caddr_t)&delay_ht, 262*7c478bd9Sstevel@tonic-gate (caddr_t)&hrcmdp->hrtc_int, sizeof (hrtimes_t))) 263*7c478bd9Sstevel@tonic-gate error = EFAULT; 264*7c478bd9Sstevel@tonic-gate 265*7c478bd9Sstevel@tonic-gate break; 266*7c478bd9Sstevel@tonic-gate 267*7c478bd9Sstevel@tonic-gate case HRT_BSD_CANCEL: 268*7c478bd9Sstevel@tonic-gate if (error = hrt_checkclock(cp->hrtc_clk)) 269*7c478bd9Sstevel@tonic-gate break; 270*7c478bd9Sstevel@tonic-gate 271*7c478bd9Sstevel@tonic-gate error = hrt_bsd_cancel(cp->hrtc_clk); 272*7c478bd9Sstevel@tonic-gate 273*7c478bd9Sstevel@tonic-gate break; 274*7c478bd9Sstevel@tonic-gate 275*7c478bd9Sstevel@tonic-gate default : 276*7c478bd9Sstevel@tonic-gate error = EINVAL; 277*7c478bd9Sstevel@tonic-gate break; 278*7c478bd9Sstevel@tonic-gate } 279*7c478bd9Sstevel@tonic-gate bad: 280*7c478bd9Sstevel@tonic-gate if (error) { 281*7c478bd9Sstevel@tonic-gate cp->hrtc_flags |= HRTF_ERROR; 282*7c478bd9Sstevel@tonic-gate cp->hrtc_error = error; 283*7c478bd9Sstevel@tonic-gate } else { 284*7c478bd9Sstevel@tonic-gate cp->hrtc_flags |= HRTF_DONE; 285*7c478bd9Sstevel@tonic-gate cp->hrtc_error = 0; 286*7c478bd9Sstevel@tonic-gate alarm_cnt++; 287*7c478bd9Sstevel@tonic-gate } 288*7c478bd9Sstevel@tonic-gate if (copyout((caddr_t)&cp->hrtc_flags, 289*7c478bd9Sstevel@tonic-gate (caddr_t)&hrcmdp->hrtc_flags, 290*7c478bd9Sstevel@tonic-gate sizeof (cp->hrtc_flags) + sizeof (cp->hrtc_error))) { 291*7c478bd9Sstevel@tonic-gate error = EFAULT; 292*7c478bd9Sstevel@tonic-gate return (error); 293*7c478bd9Sstevel@tonic-gate } 294*7c478bd9Sstevel@tonic-gate } 295*7c478bd9Sstevel@tonic-gate rvp->r_val1 = alarm_cnt; 296*7c478bd9Sstevel@tonic-gate return (0); 297*7c478bd9Sstevel@tonic-gate } 298*7c478bd9Sstevel@tonic-gate 299*7c478bd9Sstevel@tonic-gate 300*7c478bd9Sstevel@tonic-gate /* 301*7c478bd9Sstevel@tonic-gate * Cancel BSD timers 302*7c478bd9Sstevel@tonic-gate */ 303*7c478bd9Sstevel@tonic-gate 304*7c478bd9Sstevel@tonic-gate static int 305*7c478bd9Sstevel@tonic-gate hrt_bsd_cancel(int clock) 306*7c478bd9Sstevel@tonic-gate { 307*7c478bd9Sstevel@tonic-gate struct itimerval itv; 308*7c478bd9Sstevel@tonic-gate u_int which; 309*7c478bd9Sstevel@tonic-gate 310*7c478bd9Sstevel@tonic-gate switch (clock) { 311*7c478bd9Sstevel@tonic-gate case CLK_STD: 312*7c478bd9Sstevel@tonic-gate which = ITIMER_REAL; 313*7c478bd9Sstevel@tonic-gate break; 314*7c478bd9Sstevel@tonic-gate case CLK_USERVIRT: 315*7c478bd9Sstevel@tonic-gate which = ITIMER_VIRTUAL; 316*7c478bd9Sstevel@tonic-gate break; 317*7c478bd9Sstevel@tonic-gate case CLK_PROCVIRT: 318*7c478bd9Sstevel@tonic-gate which = ITIMER_PROF; 319*7c478bd9Sstevel@tonic-gate break; 320*7c478bd9Sstevel@tonic-gate default: 321*7c478bd9Sstevel@tonic-gate return (EINVAL); 322*7c478bd9Sstevel@tonic-gate } 323*7c478bd9Sstevel@tonic-gate itv.it_value.tv_sec = 0; 324*7c478bd9Sstevel@tonic-gate itv.it_value.tv_usec = 0; 325*7c478bd9Sstevel@tonic-gate (void) xsetitimer(which, &itv, 1); 326*7c478bd9Sstevel@tonic-gate return (0); 327*7c478bd9Sstevel@tonic-gate } 328*7c478bd9Sstevel@tonic-gate 329*7c478bd9Sstevel@tonic-gate 330*7c478bd9Sstevel@tonic-gate /* 331*7c478bd9Sstevel@tonic-gate * Return 0 if "res" is a legal resolution. Otherwise, 332*7c478bd9Sstevel@tonic-gate * return an error code, ERANGE. 333*7c478bd9Sstevel@tonic-gate */ 334*7c478bd9Sstevel@tonic-gate 335*7c478bd9Sstevel@tonic-gate static int 336*7c478bd9Sstevel@tonic-gate hrt_checkres(ulong res) 337*7c478bd9Sstevel@tonic-gate { 338*7c478bd9Sstevel@tonic-gate if (res == 0 || res > NANOSEC) 339*7c478bd9Sstevel@tonic-gate return (ERANGE); 340*7c478bd9Sstevel@tonic-gate return (0); 341*7c478bd9Sstevel@tonic-gate } 342*7c478bd9Sstevel@tonic-gate 343*7c478bd9Sstevel@tonic-gate /* 344*7c478bd9Sstevel@tonic-gate * Return 0 if "clock" is a valid clock. Otherwise, 345*7c478bd9Sstevel@tonic-gate * return an error code, EINVAL. 346*7c478bd9Sstevel@tonic-gate */ 347*7c478bd9Sstevel@tonic-gate 348*7c478bd9Sstevel@tonic-gate static int 349*7c478bd9Sstevel@tonic-gate hrt_checkclock(register int clock) 350*7c478bd9Sstevel@tonic-gate { 351*7c478bd9Sstevel@tonic-gate switch (clock) 352*7c478bd9Sstevel@tonic-gate case CLK_STD: 353*7c478bd9Sstevel@tonic-gate case CLK_USERVIRT: 354*7c478bd9Sstevel@tonic-gate case CLK_PROCVIRT: 355*7c478bd9Sstevel@tonic-gate return (0); 356*7c478bd9Sstevel@tonic-gate 357*7c478bd9Sstevel@tonic-gate return (EINVAL); 358*7c478bd9Sstevel@tonic-gate } 359*7c478bd9Sstevel@tonic-gate 360*7c478bd9Sstevel@tonic-gate 361*7c478bd9Sstevel@tonic-gate /* 362*7c478bd9Sstevel@tonic-gate * Set the current time of day in a specified resolution into 363*7c478bd9Sstevel@tonic-gate * a hrtimes_t structure. 364*7c478bd9Sstevel@tonic-gate */ 365*7c478bd9Sstevel@tonic-gate void 366*7c478bd9Sstevel@tonic-gate hrt_gettofd(hrtimes_t *td) 367*7c478bd9Sstevel@tonic-gate { 368*7c478bd9Sstevel@tonic-gate ulong new_res = td->hrt_res; 369*7c478bd9Sstevel@tonic-gate timestruc_t ts; 370*7c478bd9Sstevel@tonic-gate 371*7c478bd9Sstevel@tonic-gate gethrestime(&ts); 372*7c478bd9Sstevel@tonic-gate td->hrt_secs = ts.tv_sec; 373*7c478bd9Sstevel@tonic-gate td->hrt_rem = ts.tv_nsec; 374*7c478bd9Sstevel@tonic-gate td->hrt_res = NANOSEC; 375*7c478bd9Sstevel@tonic-gate 376*7c478bd9Sstevel@tonic-gate if (new_res != td->hrt_res) { 377*7c478bd9Sstevel@tonic-gate td->hrt_rem /= NANOSEC / new_res; 378*7c478bd9Sstevel@tonic-gate td->hrt_res = new_res; 379*7c478bd9Sstevel@tonic-gate } 380*7c478bd9Sstevel@tonic-gate } 381*7c478bd9Sstevel@tonic-gate 382*7c478bd9Sstevel@tonic-gate 383*7c478bd9Sstevel@tonic-gate /* 384*7c478bd9Sstevel@tonic-gate * System entry point for hrtcntl, hrtalarm 385*7c478bd9Sstevel@tonic-gate * system calls. 386*7c478bd9Sstevel@tonic-gate */ 387*7c478bd9Sstevel@tonic-gate 388*7c478bd9Sstevel@tonic-gate int 389*7c478bd9Sstevel@tonic-gate hrtsys(uap, rvp) 390*7c478bd9Sstevel@tonic-gate register struct hrtsysa *uap; 391*7c478bd9Sstevel@tonic-gate rval_t *rvp; 392*7c478bd9Sstevel@tonic-gate { 393*7c478bd9Sstevel@tonic-gate register int error; 394*7c478bd9Sstevel@tonic-gate 395*7c478bd9Sstevel@tonic-gate switch (uap->opcode) { 396*7c478bd9Sstevel@tonic-gate case HRTCNTL: 397*7c478bd9Sstevel@tonic-gate error = hrtcntl((struct hrtcntla *)uap, rvp); 398*7c478bd9Sstevel@tonic-gate break; 399*7c478bd9Sstevel@tonic-gate case HRTALARM: 400*7c478bd9Sstevel@tonic-gate error = hrtalarm((struct hrtalarma *)uap, rvp); 401*7c478bd9Sstevel@tonic-gate break; 402*7c478bd9Sstevel@tonic-gate default: 403*7c478bd9Sstevel@tonic-gate error = EINVAL; 404*7c478bd9Sstevel@tonic-gate break; 405*7c478bd9Sstevel@tonic-gate } 406*7c478bd9Sstevel@tonic-gate 407*7c478bd9Sstevel@tonic-gate return (error); 408*7c478bd9Sstevel@tonic-gate } 409