1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 1993-2002 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 28*0Sstevel@tonic-gate 29*0Sstevel@tonic-gate #include <sys/types.h> 30*0Sstevel@tonic-gate #include <sys/time.h> 31*0Sstevel@tonic-gate #include <sys/errno.h> 32*0Sstevel@tonic-gate #include <sys/cmn_err.h> 33*0Sstevel@tonic-gate #include <sys/param.h> 34*0Sstevel@tonic-gate #include <sys/modctl.h> 35*0Sstevel@tonic-gate #include <sys/conf.h> 36*0Sstevel@tonic-gate #include <sys/open.h> 37*0Sstevel@tonic-gate #include <sys/stat.h> 38*0Sstevel@tonic-gate #include <sys/clock.h> 39*0Sstevel@tonic-gate #include <sys/tod.h> 40*0Sstevel@tonic-gate #include <sys/todio.h> 41*0Sstevel@tonic-gate #include <sys/ddi.h> 42*0Sstevel@tonic-gate #include <sys/sunddi.h> 43*0Sstevel@tonic-gate #include <sys/file.h> 44*0Sstevel@tonic-gate 45*0Sstevel@tonic-gate 46*0Sstevel@tonic-gate #define getsoftc(minor) \ 47*0Sstevel@tonic-gate ((struct tod_softc *)ddi_get_soft_state(statep, (minor))) 48*0Sstevel@tonic-gate 49*0Sstevel@tonic-gate /* dev_ops and cb_ops entry point function declarations */ 50*0Sstevel@tonic-gate 51*0Sstevel@tonic-gate static int tod_attach(dev_info_t *, ddi_attach_cmd_t); 52*0Sstevel@tonic-gate static int tod_detach(dev_info_t *, ddi_detach_cmd_t); 53*0Sstevel@tonic-gate static int tod_getinfo(dev_info_t *, ddi_info_cmd_t, void *, void **); 54*0Sstevel@tonic-gate 55*0Sstevel@tonic-gate static int tod_open(dev_t *, int, int, cred_t *); 56*0Sstevel@tonic-gate static int tod_close(dev_t, int, int, cred_t *); 57*0Sstevel@tonic-gate static int tod_ioctl(dev_t, int, intptr_t, int, cred_t *, int *); 58*0Sstevel@tonic-gate 59*0Sstevel@tonic-gate struct cb_ops tod_cb_ops = { 60*0Sstevel@tonic-gate tod_open, 61*0Sstevel@tonic-gate tod_close, 62*0Sstevel@tonic-gate nodev, 63*0Sstevel@tonic-gate nodev, 64*0Sstevel@tonic-gate nodev, /* dump */ 65*0Sstevel@tonic-gate nodev, 66*0Sstevel@tonic-gate nodev, 67*0Sstevel@tonic-gate tod_ioctl, 68*0Sstevel@tonic-gate nodev, /* devmap */ 69*0Sstevel@tonic-gate nodev, 70*0Sstevel@tonic-gate ddi_segmap, /* segmap */ 71*0Sstevel@tonic-gate nochpoll, 72*0Sstevel@tonic-gate ddi_prop_op, 73*0Sstevel@tonic-gate NULL, /* for STREAMS drivers */ 74*0Sstevel@tonic-gate D_NEW | D_MP /* driver compatibility flag */ 75*0Sstevel@tonic-gate }; 76*0Sstevel@tonic-gate 77*0Sstevel@tonic-gate static struct dev_ops tod_dev_ops = { 78*0Sstevel@tonic-gate DEVO_REV, /* driver build version */ 79*0Sstevel@tonic-gate 0, /* device reference count */ 80*0Sstevel@tonic-gate tod_getinfo, 81*0Sstevel@tonic-gate nulldev, 82*0Sstevel@tonic-gate nulldev, /* probe */ 83*0Sstevel@tonic-gate tod_attach, 84*0Sstevel@tonic-gate tod_detach, 85*0Sstevel@tonic-gate nulldev, /* reset */ 86*0Sstevel@tonic-gate &tod_cb_ops, 87*0Sstevel@tonic-gate (struct bus_ops *)NULL, 88*0Sstevel@tonic-gate nulldev /* power */ 89*0Sstevel@tonic-gate }; 90*0Sstevel@tonic-gate 91*0Sstevel@tonic-gate /* module configuration stuff */ 92*0Sstevel@tonic-gate static void *statep; 93*0Sstevel@tonic-gate extern struct mod_ops mod_driverops; 94*0Sstevel@tonic-gate 95*0Sstevel@tonic-gate static struct modldrv modldrv = { 96*0Sstevel@tonic-gate &mod_driverops, 97*0Sstevel@tonic-gate "tod driver (v1.0) %I%", 98*0Sstevel@tonic-gate &tod_dev_ops 99*0Sstevel@tonic-gate }; 100*0Sstevel@tonic-gate 101*0Sstevel@tonic-gate static struct modlinkage modlinkage = { 102*0Sstevel@tonic-gate MODREV_1, 103*0Sstevel@tonic-gate &modldrv, 104*0Sstevel@tonic-gate 0 105*0Sstevel@tonic-gate }; 106*0Sstevel@tonic-gate 107*0Sstevel@tonic-gate 108*0Sstevel@tonic-gate int 109*0Sstevel@tonic-gate _init(void) 110*0Sstevel@tonic-gate { 111*0Sstevel@tonic-gate int e; 112*0Sstevel@tonic-gate 113*0Sstevel@tonic-gate if (e = ddi_soft_state_init(&statep, sizeof (struct tod_softc), 1)) { 114*0Sstevel@tonic-gate return (e); 115*0Sstevel@tonic-gate } 116*0Sstevel@tonic-gate 117*0Sstevel@tonic-gate if ((e = mod_install(&modlinkage)) != 0) { 118*0Sstevel@tonic-gate ddi_soft_state_fini(&statep); 119*0Sstevel@tonic-gate } 120*0Sstevel@tonic-gate 121*0Sstevel@tonic-gate return (e); 122*0Sstevel@tonic-gate } 123*0Sstevel@tonic-gate 124*0Sstevel@tonic-gate 125*0Sstevel@tonic-gate int 126*0Sstevel@tonic-gate _fini(void) 127*0Sstevel@tonic-gate { 128*0Sstevel@tonic-gate int e; 129*0Sstevel@tonic-gate 130*0Sstevel@tonic-gate if ((e = mod_remove(&modlinkage)) != 0) { 131*0Sstevel@tonic-gate return (e); 132*0Sstevel@tonic-gate } 133*0Sstevel@tonic-gate 134*0Sstevel@tonic-gate ddi_soft_state_fini(&statep); 135*0Sstevel@tonic-gate 136*0Sstevel@tonic-gate return (DDI_SUCCESS); 137*0Sstevel@tonic-gate } 138*0Sstevel@tonic-gate 139*0Sstevel@tonic-gate 140*0Sstevel@tonic-gate int 141*0Sstevel@tonic-gate _info(struct modinfo *modinfop) 142*0Sstevel@tonic-gate { 143*0Sstevel@tonic-gate return (mod_info(&modlinkage, modinfop)); 144*0Sstevel@tonic-gate } 145*0Sstevel@tonic-gate 146*0Sstevel@tonic-gate 147*0Sstevel@tonic-gate /* ARGSUSED */ 148*0Sstevel@tonic-gate static int 149*0Sstevel@tonic-gate tod_getinfo(dev_info_t *dip, ddi_info_cmd_t cmd, void *arg, void **result) 150*0Sstevel@tonic-gate { 151*0Sstevel@tonic-gate int inst = getminor((dev_t)arg); 152*0Sstevel@tonic-gate int retval = DDI_SUCCESS; 153*0Sstevel@tonic-gate struct tod_softc *softc; 154*0Sstevel@tonic-gate 155*0Sstevel@tonic-gate switch (cmd) { 156*0Sstevel@tonic-gate 157*0Sstevel@tonic-gate case DDI_INFO_DEVT2DEVINFO: 158*0Sstevel@tonic-gate if ((softc = getsoftc(inst)) == NULL) { 159*0Sstevel@tonic-gate *result = (void *)NULL; 160*0Sstevel@tonic-gate retval = DDI_FAILURE; 161*0Sstevel@tonic-gate } else { 162*0Sstevel@tonic-gate *result = (void *)softc->dip; 163*0Sstevel@tonic-gate } 164*0Sstevel@tonic-gate break; 165*0Sstevel@tonic-gate 166*0Sstevel@tonic-gate case DDI_INFO_DEVT2INSTANCE: 167*0Sstevel@tonic-gate *result = (void *)inst; 168*0Sstevel@tonic-gate break; 169*0Sstevel@tonic-gate 170*0Sstevel@tonic-gate default: 171*0Sstevel@tonic-gate retval = DDI_FAILURE; 172*0Sstevel@tonic-gate } 173*0Sstevel@tonic-gate 174*0Sstevel@tonic-gate return (retval); 175*0Sstevel@tonic-gate } 176*0Sstevel@tonic-gate 177*0Sstevel@tonic-gate static int 178*0Sstevel@tonic-gate tod_attach(dev_info_t *dip, ddi_attach_cmd_t cmd) 179*0Sstevel@tonic-gate { 180*0Sstevel@tonic-gate 181*0Sstevel@tonic-gate int inst; 182*0Sstevel@tonic-gate struct tod_softc *softc = NULL; 183*0Sstevel@tonic-gate char name[80]; 184*0Sstevel@tonic-gate 185*0Sstevel@tonic-gate switch (cmd) { 186*0Sstevel@tonic-gate 187*0Sstevel@tonic-gate case DDI_ATTACH: 188*0Sstevel@tonic-gate inst = ddi_get_instance(dip); 189*0Sstevel@tonic-gate /* 190*0Sstevel@tonic-gate * Create minor node. The minor device number, inst, has no 191*0Sstevel@tonic-gate * meaning. The model number above, which will be added to 192*0Sstevel@tonic-gate * the device's softc, is used to direct peculiar behavior. 193*0Sstevel@tonic-gate */ 194*0Sstevel@tonic-gate (void) sprintf(name, "tod%d", inst); 195*0Sstevel@tonic-gate if (ddi_create_minor_node(dip, name, S_IFCHR, inst, 196*0Sstevel@tonic-gate DDI_PSEUDO, NULL) == DDI_FAILURE) 197*0Sstevel@tonic-gate goto attach_failed; 198*0Sstevel@tonic-gate 199*0Sstevel@tonic-gate /* 200*0Sstevel@tonic-gate * Allocate a soft state structure for this instance. 201*0Sstevel@tonic-gate */ 202*0Sstevel@tonic-gate if (ddi_soft_state_zalloc(statep, inst) != DDI_SUCCESS) 203*0Sstevel@tonic-gate goto attach_failed; 204*0Sstevel@tonic-gate 205*0Sstevel@tonic-gate softc = getsoftc(inst); 206*0Sstevel@tonic-gate softc->dip = dip; 207*0Sstevel@tonic-gate softc->cpr_stage = ~TOD_SUSPENDED; 208*0Sstevel@tonic-gate mutex_init(&softc->mutex, NULL, MUTEX_DRIVER, NULL); 209*0Sstevel@tonic-gate ddi_report_dev(dip); 210*0Sstevel@tonic-gate return (DDI_SUCCESS); 211*0Sstevel@tonic-gate 212*0Sstevel@tonic-gate case DDI_RESUME: 213*0Sstevel@tonic-gate inst = ddi_get_instance(dip); 214*0Sstevel@tonic-gate softc = getsoftc(inst); 215*0Sstevel@tonic-gate mutex_enter(&softc->mutex); 216*0Sstevel@tonic-gate softc->cpr_stage = ~TOD_SUSPENDED; 217*0Sstevel@tonic-gate mutex_exit(&softc->mutex); 218*0Sstevel@tonic-gate return (DDI_SUCCESS); 219*0Sstevel@tonic-gate 220*0Sstevel@tonic-gate default: 221*0Sstevel@tonic-gate return (DDI_FAILURE); 222*0Sstevel@tonic-gate } 223*0Sstevel@tonic-gate 224*0Sstevel@tonic-gate attach_failed: 225*0Sstevel@tonic-gate /* Free soft state, if allocated. remove minor node if added earlier */ 226*0Sstevel@tonic-gate if (softc) 227*0Sstevel@tonic-gate ddi_soft_state_free(statep, inst); 228*0Sstevel@tonic-gate 229*0Sstevel@tonic-gate ddi_remove_minor_node(dip, NULL); 230*0Sstevel@tonic-gate 231*0Sstevel@tonic-gate return (DDI_FAILURE); 232*0Sstevel@tonic-gate } 233*0Sstevel@tonic-gate 234*0Sstevel@tonic-gate static int 235*0Sstevel@tonic-gate tod_detach(dev_info_t *dip, ddi_detach_cmd_t cmd) 236*0Sstevel@tonic-gate { 237*0Sstevel@tonic-gate int inst; 238*0Sstevel@tonic-gate struct tod_softc *softc; 239*0Sstevel@tonic-gate 240*0Sstevel@tonic-gate switch (cmd) { 241*0Sstevel@tonic-gate 242*0Sstevel@tonic-gate case DDI_DETACH: 243*0Sstevel@tonic-gate inst = ddi_get_instance(dip); 244*0Sstevel@tonic-gate if ((softc = getsoftc(inst)) == NULL) 245*0Sstevel@tonic-gate return (ENXIO); 246*0Sstevel@tonic-gate /* 247*0Sstevel@tonic-gate * Free the soft state and remove minor node added earlier. 248*0Sstevel@tonic-gate */ 249*0Sstevel@tonic-gate mutex_destroy(&softc->mutex); 250*0Sstevel@tonic-gate ddi_soft_state_free(statep, inst); 251*0Sstevel@tonic-gate ddi_remove_minor_node(dip, NULL); 252*0Sstevel@tonic-gate return (DDI_SUCCESS); 253*0Sstevel@tonic-gate 254*0Sstevel@tonic-gate case DDI_SUSPEND: 255*0Sstevel@tonic-gate inst = ddi_get_instance(dip); 256*0Sstevel@tonic-gate softc = getsoftc(inst); 257*0Sstevel@tonic-gate mutex_enter(&softc->mutex); 258*0Sstevel@tonic-gate softc->cpr_stage = TOD_SUSPENDED; 259*0Sstevel@tonic-gate mutex_exit(&softc->mutex); 260*0Sstevel@tonic-gate return (DDI_SUCCESS); 261*0Sstevel@tonic-gate 262*0Sstevel@tonic-gate default: 263*0Sstevel@tonic-gate return (DDI_FAILURE); 264*0Sstevel@tonic-gate 265*0Sstevel@tonic-gate } 266*0Sstevel@tonic-gate } 267*0Sstevel@tonic-gate 268*0Sstevel@tonic-gate /* ARGSUSED */ 269*0Sstevel@tonic-gate static int 270*0Sstevel@tonic-gate tod_open(dev_t *devp, int flag, int otyp, cred_t *credp) 271*0Sstevel@tonic-gate { 272*0Sstevel@tonic-gate int inst = getminor(*devp); 273*0Sstevel@tonic-gate 274*0Sstevel@tonic-gate return (getsoftc(inst) == NULL ? ENXIO : 0); 275*0Sstevel@tonic-gate } 276*0Sstevel@tonic-gate 277*0Sstevel@tonic-gate 278*0Sstevel@tonic-gate /* ARGSUSED */ 279*0Sstevel@tonic-gate static int 280*0Sstevel@tonic-gate tod_close(dev_t dev, int flag, int otyp, cred_t *credp) 281*0Sstevel@tonic-gate { 282*0Sstevel@tonic-gate int inst = getminor(dev); 283*0Sstevel@tonic-gate 284*0Sstevel@tonic-gate return (getsoftc(inst) == NULL ? ENXIO : 0); 285*0Sstevel@tonic-gate } 286*0Sstevel@tonic-gate 287*0Sstevel@tonic-gate 288*0Sstevel@tonic-gate /* ARGSUSED */ 289*0Sstevel@tonic-gate static int 290*0Sstevel@tonic-gate tod_ioctl(dev_t dev, int cmd, intptr_t arg, int mode, cred_t *credp, int *rvalp) 291*0Sstevel@tonic-gate { 292*0Sstevel@tonic-gate int inst = getminor(dev); 293*0Sstevel@tonic-gate struct tod_softc *softc; 294*0Sstevel@tonic-gate timestruc_t ts; 295*0Sstevel@tonic-gate 296*0Sstevel@tonic-gate if ((softc = getsoftc(inst)) == NULL) 297*0Sstevel@tonic-gate return (ENXIO); 298*0Sstevel@tonic-gate 299*0Sstevel@tonic-gate mutex_enter(&softc->mutex); 300*0Sstevel@tonic-gate while (softc->cpr_stage == TOD_SUSPENDED) { 301*0Sstevel@tonic-gate mutex_exit(&softc->mutex); 302*0Sstevel@tonic-gate (void) ddi_dev_is_needed(softc->dip, 0, 1); 303*0Sstevel@tonic-gate mutex_enter(&softc->mutex); 304*0Sstevel@tonic-gate } 305*0Sstevel@tonic-gate 306*0Sstevel@tonic-gate switch (cmd) { 307*0Sstevel@tonic-gate 308*0Sstevel@tonic-gate case TOD_CLEAR_ALARM: 309*0Sstevel@tonic-gate mutex_enter(&tod_lock); 310*0Sstevel@tonic-gate tod_ops.tod_clear_power_alarm(); 311*0Sstevel@tonic-gate mutex_exit(&tod_lock); 312*0Sstevel@tonic-gate break; 313*0Sstevel@tonic-gate 314*0Sstevel@tonic-gate case TOD_SET_ALARM: 315*0Sstevel@tonic-gate if ((mode & FMODELS) == FNATIVE) { 316*0Sstevel@tonic-gate if (ddi_copyin((caddr_t)arg, (caddr_t)&ts.tv_sec, 317*0Sstevel@tonic-gate sizeof (ts.tv_sec), mode) != 0) { 318*0Sstevel@tonic-gate mutex_exit(&softc->mutex); 319*0Sstevel@tonic-gate return (EFAULT); 320*0Sstevel@tonic-gate } 321*0Sstevel@tonic-gate } else { 322*0Sstevel@tonic-gate time32_t time32; 323*0Sstevel@tonic-gate 324*0Sstevel@tonic-gate if (ddi_copyin((caddr_t)arg, 325*0Sstevel@tonic-gate &time32, sizeof (time32), mode) != 0) { 326*0Sstevel@tonic-gate mutex_exit(&softc->mutex); 327*0Sstevel@tonic-gate return (EFAULT); 328*0Sstevel@tonic-gate } 329*0Sstevel@tonic-gate ts.tv_sec = (time_t)time32; 330*0Sstevel@tonic-gate } 331*0Sstevel@tonic-gate ts.tv_nsec = 0; 332*0Sstevel@tonic-gate 333*0Sstevel@tonic-gate mutex_enter(&tod_lock); 334*0Sstevel@tonic-gate tod_ops.tod_set_power_alarm(ts); 335*0Sstevel@tonic-gate mutex_exit(&tod_lock); 336*0Sstevel@tonic-gate break; 337*0Sstevel@tonic-gate 338*0Sstevel@tonic-gate case TOD_GET_DATE: 339*0Sstevel@tonic-gate mutex_enter(&tod_lock); 340*0Sstevel@tonic-gate ts = tod_ops.tod_get(); 341*0Sstevel@tonic-gate mutex_exit(&tod_lock); 342*0Sstevel@tonic-gate 343*0Sstevel@tonic-gate if ((mode & FMODELS) == FNATIVE) { 344*0Sstevel@tonic-gate if (ddi_copyout((caddr_t)&ts.tv_sec, (caddr_t)arg, 345*0Sstevel@tonic-gate sizeof (ts.tv_sec), mode) != 0) { 346*0Sstevel@tonic-gate mutex_exit(&softc->mutex); 347*0Sstevel@tonic-gate return (EFAULT); 348*0Sstevel@tonic-gate } 349*0Sstevel@tonic-gate } else { 350*0Sstevel@tonic-gate time32_t time32; 351*0Sstevel@tonic-gate 352*0Sstevel@tonic-gate if (TIMEVAL_OVERFLOW(&ts)) { 353*0Sstevel@tonic-gate mutex_exit(&softc->mutex); 354*0Sstevel@tonic-gate return (EOVERFLOW); 355*0Sstevel@tonic-gate } 356*0Sstevel@tonic-gate 357*0Sstevel@tonic-gate time32 = (time32_t)ts.tv_sec; 358*0Sstevel@tonic-gate if (ddi_copyout(&time32, 359*0Sstevel@tonic-gate (caddr_t)arg, sizeof (time32), mode) != 0) { 360*0Sstevel@tonic-gate mutex_exit(&softc->mutex); 361*0Sstevel@tonic-gate return (EFAULT); 362*0Sstevel@tonic-gate } 363*0Sstevel@tonic-gate } 364*0Sstevel@tonic-gate break; 365*0Sstevel@tonic-gate 366*0Sstevel@tonic-gate default: 367*0Sstevel@tonic-gate mutex_exit(&softc->mutex); 368*0Sstevel@tonic-gate return (EINVAL); 369*0Sstevel@tonic-gate } 370*0Sstevel@tonic-gate 371*0Sstevel@tonic-gate mutex_exit(&softc->mutex); 372*0Sstevel@tonic-gate return (0); 373*0Sstevel@tonic-gate } 374