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 2005 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/conf.h> 31*0Sstevel@tonic-gate #include <sys/devops.h> 32*0Sstevel@tonic-gate #include <sys/kmem.h> 33*0Sstevel@tonic-gate #include <sys/open.h> 34*0Sstevel@tonic-gate #include <sys/file.h> 35*0Sstevel@tonic-gate #include <sys/note.h> 36*0Sstevel@tonic-gate #include <sys/ddi.h> 37*0Sstevel@tonic-gate #include <sys/sunddi.h> 38*0Sstevel@tonic-gate 39*0Sstevel@tonic-gate #include <sys/modctl.h> 40*0Sstevel@tonic-gate #include <sys/stat.h> 41*0Sstevel@tonic-gate #include <sys/clock.h> 42*0Sstevel@tonic-gate #include <sys/reboot.h> 43*0Sstevel@tonic-gate #include <sys/machsystm.h> 44*0Sstevel@tonic-gate #include <sys/poll.h> 45*0Sstevel@tonic-gate #include <sys/pbio.h> 46*0Sstevel@tonic-gate #include <sys/sysmacros.h> 47*0Sstevel@tonic-gate #include <sys/cyclic.h> 48*0Sstevel@tonic-gate 49*0Sstevel@tonic-gate /* Added for prom interface */ 50*0Sstevel@tonic-gate #include <sys/promif.h> 51*0Sstevel@tonic-gate #include <sys/promimpl.h> 52*0Sstevel@tonic-gate 53*0Sstevel@tonic-gate #include <sys/i2c/misc/i2c_svc.h> 54*0Sstevel@tonic-gate #include <sys/todds1337.h> 55*0Sstevel@tonic-gate 56*0Sstevel@tonic-gate #define DS1337_DEVICE_TYPE "rtc" 57*0Sstevel@tonic-gate 58*0Sstevel@tonic-gate /* 59*0Sstevel@tonic-gate * Driver entry routines 60*0Sstevel@tonic-gate */ 61*0Sstevel@tonic-gate static int todds1337_attach(dev_info_t *, ddi_attach_cmd_t); 62*0Sstevel@tonic-gate static int todds1337_detach(dev_info_t *, ddi_detach_cmd_t); 63*0Sstevel@tonic-gate static int todds1337_getinfo(dev_info_t *, ddi_info_cmd_t, void *, void **); 64*0Sstevel@tonic-gate 65*0Sstevel@tonic-gate /* 66*0Sstevel@tonic-gate * tod_ops entry routines 67*0Sstevel@tonic-gate */ 68*0Sstevel@tonic-gate static timestruc_t todds1337_get(void); 69*0Sstevel@tonic-gate static void todds1337_set(timestruc_t); 70*0Sstevel@tonic-gate static uint_t todds1337_set_watchdog_timer(uint_t); 71*0Sstevel@tonic-gate static uint_t todds1337_clear_watchdog_timer(void); 72*0Sstevel@tonic-gate static void todds1337_set_power_alarm(timestruc_t); 73*0Sstevel@tonic-gate static void todds1337_clear_power_alarm(void); 74*0Sstevel@tonic-gate static int todds1337_setup_prom(); 75*0Sstevel@tonic-gate static void todds1337_rele_prom(); 76*0Sstevel@tonic-gate static int todds1337_prom_getdate(struct rtc_t *rtc); 77*0Sstevel@tonic-gate static int todds1337_prom_setdate(struct rtc_t *rtc); 78*0Sstevel@tonic-gate 79*0Sstevel@tonic-gate /* 80*0Sstevel@tonic-gate * Local functions 81*0Sstevel@tonic-gate */ 82*0Sstevel@tonic-gate static int todds1337_read_rtc(struct rtc_t *); 83*0Sstevel@tonic-gate static int todds1337_write_rtc(struct rtc_t *); 84*0Sstevel@tonic-gate 85*0Sstevel@tonic-gate /* Anchor for soft state structure */ 86*0Sstevel@tonic-gate static void *ds1337_statep; 87*0Sstevel@tonic-gate static int instance = -1; 88*0Sstevel@tonic-gate static int todds1337_attach_done = 0; 89*0Sstevel@tonic-gate static kmutex_t todds1337_rd_lock; 90*0Sstevel@tonic-gate static kmutex_t todds1337_alarm_lock; 91*0Sstevel@tonic-gate static ihandle_t todds1337_ihandle = 0; 92*0Sstevel@tonic-gate 93*0Sstevel@tonic-gate /* one second time out */ 94*0Sstevel@tonic-gate #define I2C_CYCLIC_TIMEOUT 1000000000 95*0Sstevel@tonic-gate uint_t i2c_cyclic_timeout = I2C_CYCLIC_TIMEOUT; 96*0Sstevel@tonic-gate static int sync_clock_once = 1; 97*0Sstevel@tonic-gate static struct rtc_t soft_rtc; 98*0Sstevel@tonic-gate 99*0Sstevel@tonic-gate /* 100*0Sstevel@tonic-gate * cp_ops structure 101*0Sstevel@tonic-gate */ 102*0Sstevel@tonic-gate static struct cb_ops ds1337_cbops = { 103*0Sstevel@tonic-gate nodev, /* open */ 104*0Sstevel@tonic-gate nodev, /* close */ 105*0Sstevel@tonic-gate nodev, /* strategy */ 106*0Sstevel@tonic-gate nodev, /* print */ 107*0Sstevel@tonic-gate nodev, /* dump */ 108*0Sstevel@tonic-gate nodev, /* read */ 109*0Sstevel@tonic-gate nodev, /* write */ 110*0Sstevel@tonic-gate nodev, /* ioctl */ 111*0Sstevel@tonic-gate nodev, /* devmap */ 112*0Sstevel@tonic-gate nodev, /* mmap */ 113*0Sstevel@tonic-gate nodev, /* segmap */ 114*0Sstevel@tonic-gate NULL, /* poll */ 115*0Sstevel@tonic-gate ddi_prop_op, /* cb_prop_op */ 116*0Sstevel@tonic-gate NULL, /* streamtab */ 117*0Sstevel@tonic-gate D_NEW | D_MP, /* Driver compatibility flag */ 118*0Sstevel@tonic-gate CB_REV, /* rev */ 119*0Sstevel@tonic-gate nodev, /* int (*cb_aread)() */ 120*0Sstevel@tonic-gate nodev /* int (*cb_awrite)() */ 121*0Sstevel@tonic-gate }; 122*0Sstevel@tonic-gate 123*0Sstevel@tonic-gate /* 124*0Sstevel@tonic-gate * dev_ops structure 125*0Sstevel@tonic-gate */ 126*0Sstevel@tonic-gate static struct dev_ops ds1337_ops = { 127*0Sstevel@tonic-gate DEVO_REV, /* devo_rev */ 128*0Sstevel@tonic-gate 0, /* refcnt - reference cnt always set to 0 */ 129*0Sstevel@tonic-gate todds1337_getinfo, /* getinfo - Maybe requred */ 130*0Sstevel@tonic-gate nulldev, /* identify */ 131*0Sstevel@tonic-gate nulldev, /* probe */ 132*0Sstevel@tonic-gate todds1337_attach, /* attach */ 133*0Sstevel@tonic-gate todds1337_detach, /* detach */ 134*0Sstevel@tonic-gate nodev, /* reset */ 135*0Sstevel@tonic-gate &ds1337_cbops, /* cb_ops - ds1337 does not need this(?) */ 136*0Sstevel@tonic-gate NULL 137*0Sstevel@tonic-gate }; 138*0Sstevel@tonic-gate 139*0Sstevel@tonic-gate static struct modldrv todds1337_modldrv = { 140*0Sstevel@tonic-gate &mod_driverops, /* Type of module. This one is a driver */ 141*0Sstevel@tonic-gate "tod driver for DS1337 %I%", /* Name of the module. */ 142*0Sstevel@tonic-gate &ds1337_ops, /* Pointer to dev_ops */ 143*0Sstevel@tonic-gate }; 144*0Sstevel@tonic-gate 145*0Sstevel@tonic-gate /* 146*0Sstevel@tonic-gate * Module linkage structure 147*0Sstevel@tonic-gate */ 148*0Sstevel@tonic-gate static struct modlinkage todds1337_modlinkage = { 149*0Sstevel@tonic-gate MODREV_1, 150*0Sstevel@tonic-gate &todds1337_modldrv, 151*0Sstevel@tonic-gate 0 152*0Sstevel@tonic-gate }; 153*0Sstevel@tonic-gate 154*0Sstevel@tonic-gate int 155*0Sstevel@tonic-gate _init(void) 156*0Sstevel@tonic-gate { 157*0Sstevel@tonic-gate int error; 158*0Sstevel@tonic-gate 159*0Sstevel@tonic-gate if (strcmp(tod_module_name, "todds1337") == 0) { 160*0Sstevel@tonic-gate if ((error = ddi_soft_state_init(&ds1337_statep, 161*0Sstevel@tonic-gate sizeof (ds1337_state_t), 0)) != DDI_SUCCESS) { 162*0Sstevel@tonic-gate return (error); 163*0Sstevel@tonic-gate } 164*0Sstevel@tonic-gate 165*0Sstevel@tonic-gate tod_ops.tod_get = todds1337_get; 166*0Sstevel@tonic-gate tod_ops.tod_set = todds1337_set; 167*0Sstevel@tonic-gate tod_ops.tod_set_watchdog_timer = todds1337_set_watchdog_timer; 168*0Sstevel@tonic-gate tod_ops.tod_clear_watchdog_timer = 169*0Sstevel@tonic-gate todds1337_clear_watchdog_timer; 170*0Sstevel@tonic-gate tod_ops.tod_set_power_alarm = todds1337_set_power_alarm; 171*0Sstevel@tonic-gate tod_ops.tod_clear_power_alarm = todds1337_clear_power_alarm; 172*0Sstevel@tonic-gate } 173*0Sstevel@tonic-gate 174*0Sstevel@tonic-gate (void) todds1337_setup_prom(); 175*0Sstevel@tonic-gate 176*0Sstevel@tonic-gate /* 177*0Sstevel@tonic-gate * Install the module 178*0Sstevel@tonic-gate */ 179*0Sstevel@tonic-gate if ((error = mod_install(&todds1337_modlinkage)) != 0) { 180*0Sstevel@tonic-gate ddi_soft_state_fini(&ds1337_statep); 181*0Sstevel@tonic-gate return (error); 182*0Sstevel@tonic-gate } 183*0Sstevel@tonic-gate mutex_init(&todds1337_rd_lock, NULL, MUTEX_DEFAULT, NULL); 184*0Sstevel@tonic-gate mutex_init(&todds1337_alarm_lock, NULL, MUTEX_DEFAULT, NULL); 185*0Sstevel@tonic-gate 186*0Sstevel@tonic-gate return (0); 187*0Sstevel@tonic-gate } 188*0Sstevel@tonic-gate 189*0Sstevel@tonic-gate int 190*0Sstevel@tonic-gate _fini(void) 191*0Sstevel@tonic-gate { 192*0Sstevel@tonic-gate int error = 0; 193*0Sstevel@tonic-gate 194*0Sstevel@tonic-gate if (strcmp(tod_module_name, "todds1337") == 0) { 195*0Sstevel@tonic-gate error = EBUSY; 196*0Sstevel@tonic-gate } else { 197*0Sstevel@tonic-gate if ((error = mod_remove(&todds1337_modlinkage)) == 0) { 198*0Sstevel@tonic-gate ddi_soft_state_fini(&ds1337_statep); 199*0Sstevel@tonic-gate mutex_destroy(&todds1337_rd_lock); 200*0Sstevel@tonic-gate mutex_destroy(&todds1337_alarm_lock); 201*0Sstevel@tonic-gate todds1337_rele_prom(); 202*0Sstevel@tonic-gate } 203*0Sstevel@tonic-gate } 204*0Sstevel@tonic-gate 205*0Sstevel@tonic-gate return (error); 206*0Sstevel@tonic-gate } 207*0Sstevel@tonic-gate 208*0Sstevel@tonic-gate int 209*0Sstevel@tonic-gate _info(struct modinfo *modinfop) 210*0Sstevel@tonic-gate { 211*0Sstevel@tonic-gate return (mod_info(&todds1337_modlinkage, modinfop)); 212*0Sstevel@tonic-gate } 213*0Sstevel@tonic-gate 214*0Sstevel@tonic-gate /* 215*0Sstevel@tonic-gate * cyclical call to get tod. 216*0Sstevel@tonic-gate */ 217*0Sstevel@tonic-gate static void 218*0Sstevel@tonic-gate todds1337_cyclic(void *arg) 219*0Sstevel@tonic-gate { 220*0Sstevel@tonic-gate 221*0Sstevel@tonic-gate (void) todds1337_read_rtc((struct rtc_t *)arg); 222*0Sstevel@tonic-gate 223*0Sstevel@tonic-gate } 224*0Sstevel@tonic-gate 225*0Sstevel@tonic-gate /* 226*0Sstevel@tonic-gate * register ds1337 client device with i2c services, and 227*0Sstevel@tonic-gate * allocate & initialize soft state structure. 228*0Sstevel@tonic-gate */ 229*0Sstevel@tonic-gate static int 230*0Sstevel@tonic-gate todds1337_attach(dev_info_t *dip, ddi_attach_cmd_t cmd) 231*0Sstevel@tonic-gate { 232*0Sstevel@tonic-gate static ds1337_state_t *statep = NULL; 233*0Sstevel@tonic-gate i2c_transfer_t *i2c_tp = NULL; 234*0Sstevel@tonic-gate uint8_t tempVal = (uint8_t)0; 235*0Sstevel@tonic-gate cyc_handler_t cychand; 236*0Sstevel@tonic-gate cyc_time_t cyctime; 237*0Sstevel@tonic-gate 238*0Sstevel@tonic-gate switch (cmd) { 239*0Sstevel@tonic-gate case DDI_ATTACH: 240*0Sstevel@tonic-gate break; 241*0Sstevel@tonic-gate case DDI_RESUME: 242*0Sstevel@tonic-gate return (DDI_SUCCESS); 243*0Sstevel@tonic-gate default: 244*0Sstevel@tonic-gate return (DDI_FAILURE); 245*0Sstevel@tonic-gate } 246*0Sstevel@tonic-gate 247*0Sstevel@tonic-gate if (instance != -1) { 248*0Sstevel@tonic-gate cmn_err(CE_WARN, "todds1337_attach: wrong instance"); 249*0Sstevel@tonic-gate return (DDI_FAILURE); 250*0Sstevel@tonic-gate } 251*0Sstevel@tonic-gate 252*0Sstevel@tonic-gate instance = ddi_get_instance(dip); 253*0Sstevel@tonic-gate 254*0Sstevel@tonic-gate /* 255*0Sstevel@tonic-gate * Allocate soft state structure 256*0Sstevel@tonic-gate */ 257*0Sstevel@tonic-gate if (ddi_soft_state_zalloc(ds1337_statep, instance) != DDI_SUCCESS) { 258*0Sstevel@tonic-gate cmn_err(CE_WARN, "todds1337_attach: cannot allocate soft " 259*0Sstevel@tonic-gate "state"); 260*0Sstevel@tonic-gate instance = -1; 261*0Sstevel@tonic-gate return (DDI_FAILURE); 262*0Sstevel@tonic-gate } 263*0Sstevel@tonic-gate 264*0Sstevel@tonic-gate statep = ddi_get_soft_state(ds1337_statep, instance); 265*0Sstevel@tonic-gate if (statep == NULL) { 266*0Sstevel@tonic-gate cmn_err(CE_WARN, "todds1337_attach: cannot acquire soft " 267*0Sstevel@tonic-gate "state"); 268*0Sstevel@tonic-gate instance = -1; 269*0Sstevel@tonic-gate return (DDI_FAILURE); 270*0Sstevel@tonic-gate } 271*0Sstevel@tonic-gate 272*0Sstevel@tonic-gate statep->dip = dip; 273*0Sstevel@tonic-gate 274*0Sstevel@tonic-gate if (i2c_client_register(dip, &statep->ds1337_i2c_hdl) != I2C_SUCCESS) { 275*0Sstevel@tonic-gate ddi_soft_state_free(ds1337_statep, instance); 276*0Sstevel@tonic-gate cmn_err(CE_WARN, "todds1337_attach: cannot register i2c " 277*0Sstevel@tonic-gate "client"); 278*0Sstevel@tonic-gate instance = -1; 279*0Sstevel@tonic-gate return (DDI_FAILURE); 280*0Sstevel@tonic-gate } 281*0Sstevel@tonic-gate 282*0Sstevel@tonic-gate /* check and initialize the oscillator */ 283*0Sstevel@tonic-gate 284*0Sstevel@tonic-gate (void) i2c_transfer_alloc(statep->ds1337_i2c_hdl, 285*0Sstevel@tonic-gate &i2c_tp, 1, 1, I2C_SLEEP); 286*0Sstevel@tonic-gate i2c_tp->i2c_version = I2C_XFER_REV; 287*0Sstevel@tonic-gate i2c_tp->i2c_flags = I2C_WR_RD; 288*0Sstevel@tonic-gate i2c_tp->i2c_wbuf[0] = (uchar_t)RTC_STATUS; /* Read Status register */ 289*0Sstevel@tonic-gate i2c_tp->i2c_wlen = 1; 290*0Sstevel@tonic-gate i2c_tp->i2c_rlen = 1; 291*0Sstevel@tonic-gate 292*0Sstevel@tonic-gate if ((i2c_transfer(statep->ds1337_i2c_hdl, i2c_tp)) != I2C_SUCCESS) { 293*0Sstevel@tonic-gate (void) i2c_transfer_free(statep->ds1337_i2c_hdl, i2c_tp); 294*0Sstevel@tonic-gate i2c_client_unregister(statep->ds1337_i2c_hdl); 295*0Sstevel@tonic-gate ddi_soft_state_free(ds1337_statep, instance); 296*0Sstevel@tonic-gate cmn_err(CE_WARN, "todds1337_attach: failed to read DS1337 " 297*0Sstevel@tonic-gate "status register"); 298*0Sstevel@tonic-gate instance = -1; 299*0Sstevel@tonic-gate return (DDI_FAILURE); 300*0Sstevel@tonic-gate } 301*0Sstevel@tonic-gate 302*0Sstevel@tonic-gate tempVal = i2c_tp->i2c_rbuf[0]; 303*0Sstevel@tonic-gate 304*0Sstevel@tonic-gate (void) i2c_transfer_free(statep->ds1337_i2c_hdl, i2c_tp); 305*0Sstevel@tonic-gate 306*0Sstevel@tonic-gate /* 307*0Sstevel@tonic-gate * Check Oscillator and initialize chip if OBP failed to do it 308*0Sstevel@tonic-gate */ 309*0Sstevel@tonic-gate 310*0Sstevel@tonic-gate if (tempVal & RTC_CTL_EOSC) { 311*0Sstevel@tonic-gate (void) i2c_transfer_alloc(statep->ds1337_i2c_hdl, &i2c_tp, 312*0Sstevel@tonic-gate 2, 0, I2C_SLEEP); 313*0Sstevel@tonic-gate i2c_tp->i2c_version = I2C_XFER_REV; 314*0Sstevel@tonic-gate i2c_tp->i2c_flags = I2C_WR; 315*0Sstevel@tonic-gate i2c_tp->i2c_wbuf[0] = RTC_CTL; /* Write Control register */ 316*0Sstevel@tonic-gate i2c_tp->i2c_wbuf[1] = (uchar_t)(RTC_CTL_RS2 | RTC_CTL_RS1 | 317*0Sstevel@tonic-gate RTC_CTL_INTCN); 318*0Sstevel@tonic-gate if ((i2c_transfer(statep->ds1337_i2c_hdl, i2c_tp)) 319*0Sstevel@tonic-gate != I2C_SUCCESS) { 320*0Sstevel@tonic-gate (void) i2c_transfer_free(statep->ds1337_i2c_hdl, 321*0Sstevel@tonic-gate i2c_tp); 322*0Sstevel@tonic-gate i2c_client_unregister(statep->ds1337_i2c_hdl); 323*0Sstevel@tonic-gate ddi_soft_state_free(ds1337_statep, instance); 324*0Sstevel@tonic-gate cmn_err(CE_WARN, "todds1337_attach: failed to write " 325*0Sstevel@tonic-gate "DS1337 control register"); 326*0Sstevel@tonic-gate instance = -1; 327*0Sstevel@tonic-gate return (DDI_FAILURE); 328*0Sstevel@tonic-gate } 329*0Sstevel@tonic-gate 330*0Sstevel@tonic-gate (void) i2c_transfer_free(statep->ds1337_i2c_hdl, i2c_tp); 331*0Sstevel@tonic-gate 332*0Sstevel@tonic-gate /* 333*0Sstevel@tonic-gate * Now reset the OSF flag in the Status register 334*0Sstevel@tonic-gate */ 335*0Sstevel@tonic-gate (void) i2c_transfer_alloc(statep->ds1337_i2c_hdl, &i2c_tp, 336*0Sstevel@tonic-gate 2, 0, I2C_SLEEP); 337*0Sstevel@tonic-gate i2c_tp->i2c_version = I2C_XFER_REV; 338*0Sstevel@tonic-gate i2c_tp->i2c_flags = I2C_WR; 339*0Sstevel@tonic-gate i2c_tp->i2c_wbuf[0] = RTC_STATUS; 340*0Sstevel@tonic-gate i2c_tp->i2c_wbuf[1] = (uchar_t)0; 341*0Sstevel@tonic-gate if ((i2c_transfer(statep->ds1337_i2c_hdl, i2c_tp)) 342*0Sstevel@tonic-gate != I2C_SUCCESS) { 343*0Sstevel@tonic-gate (void) i2c_transfer_free(statep->ds1337_i2c_hdl, 344*0Sstevel@tonic-gate i2c_tp); 345*0Sstevel@tonic-gate i2c_client_unregister(statep->ds1337_i2c_hdl); 346*0Sstevel@tonic-gate ddi_soft_state_free(ds1337_statep, instance); 347*0Sstevel@tonic-gate cmn_err(CE_WARN, "todds1337_attach: failed to write " 348*0Sstevel@tonic-gate "DS1337 status register"); 349*0Sstevel@tonic-gate instance = -1; 350*0Sstevel@tonic-gate return (DDI_FAILURE); 351*0Sstevel@tonic-gate } 352*0Sstevel@tonic-gate 353*0Sstevel@tonic-gate (void) i2c_transfer_free(statep->ds1337_i2c_hdl, i2c_tp); 354*0Sstevel@tonic-gate } 355*0Sstevel@tonic-gate 356*0Sstevel@tonic-gate /* Create a cyclic handler to read TOD */ 357*0Sstevel@tonic-gate cychand.cyh_func = todds1337_cyclic; 358*0Sstevel@tonic-gate cychand.cyh_arg = &soft_rtc; 359*0Sstevel@tonic-gate cychand.cyh_level = CY_LOW_LEVEL; 360*0Sstevel@tonic-gate cyctime.cyt_when = 0; 361*0Sstevel@tonic-gate cyctime.cyt_interval = i2c_cyclic_timeout; 362*0Sstevel@tonic-gate ASSERT(statep->cycid == CYCLIC_NONE); 363*0Sstevel@tonic-gate mutex_enter(&cpu_lock); 364*0Sstevel@tonic-gate statep->cycid = cyclic_add(&cychand, &cyctime); 365*0Sstevel@tonic-gate mutex_exit(&cpu_lock); 366*0Sstevel@tonic-gate ASSERT(statep->cycid != CYCLIC_NONE); 367*0Sstevel@tonic-gate 368*0Sstevel@tonic-gate statep->state = TOD_ATTACHED; 369*0Sstevel@tonic-gate todds1337_attach_done = 1; 370*0Sstevel@tonic-gate ddi_report_dev(dip); 371*0Sstevel@tonic-gate 372*0Sstevel@tonic-gate return (DDI_SUCCESS); 373*0Sstevel@tonic-gate } 374*0Sstevel@tonic-gate 375*0Sstevel@tonic-gate /*ARGSUSED*/ 376*0Sstevel@tonic-gate static int 377*0Sstevel@tonic-gate todds1337_detach(dev_info_t *dip, ddi_detach_cmd_t cmd) 378*0Sstevel@tonic-gate { 379*0Sstevel@tonic-gate /* 380*0Sstevel@tonic-gate * Once attached, do not allow detach because the system constantly 381*0Sstevel@tonic-gate * calling todds1337_get() to get the time. If the driver is detached 382*0Sstevel@tonic-gate * and the system try to get the time, the system will have memory 383*0Sstevel@tonic-gate * problem. 384*0Sstevel@tonic-gate * 385*0Sstevel@tonic-gate */ 386*0Sstevel@tonic-gate switch (cmd) { 387*0Sstevel@tonic-gate case DDI_SUSPEND: 388*0Sstevel@tonic-gate return (DDI_SUCCESS); 389*0Sstevel@tonic-gate default: 390*0Sstevel@tonic-gate return (DDI_FAILURE); 391*0Sstevel@tonic-gate } 392*0Sstevel@tonic-gate } 393*0Sstevel@tonic-gate 394*0Sstevel@tonic-gate /* *********************** tod_ops entry points ******************** */ 395*0Sstevel@tonic-gate 396*0Sstevel@tonic-gate /* 397*0Sstevel@tonic-gate * Read the current time from the DS1337 chip and convert to UNIX form. 398*0Sstevel@tonic-gate * Should be called with tod_clock held. 399*0Sstevel@tonic-gate */ 400*0Sstevel@tonic-gate 401*0Sstevel@tonic-gate static timestruc_t 402*0Sstevel@tonic-gate todds1337_get(void) 403*0Sstevel@tonic-gate { 404*0Sstevel@tonic-gate timestruc_t ts; 405*0Sstevel@tonic-gate todinfo_t tod; 406*0Sstevel@tonic-gate struct rtc_t rtc; 407*0Sstevel@tonic-gate 408*0Sstevel@tonic-gate ASSERT(MUTEX_HELD(&tod_lock)); 409*0Sstevel@tonic-gate 410*0Sstevel@tonic-gate if (sync_clock_once) { 411*0Sstevel@tonic-gate (void) todds1337_read_rtc(&soft_rtc); 412*0Sstevel@tonic-gate sync_clock_once = 0; 413*0Sstevel@tonic-gate } else { 414*0Sstevel@tonic-gate tod_fault_reset(); 415*0Sstevel@tonic-gate return (hrestime); 416*0Sstevel@tonic-gate } 417*0Sstevel@tonic-gate 418*0Sstevel@tonic-gate bcopy(&soft_rtc, &rtc, sizeof (rtc)); 419*0Sstevel@tonic-gate 420*0Sstevel@tonic-gate /* 421*0Sstevel@tonic-gate * 00 - 68 = 2000 thru 2068 422*0Sstevel@tonic-gate * 69-99 = 1969 thru 1999 423*0Sstevel@tonic-gate */ 424*0Sstevel@tonic-gate tod.tod_year = rtc.rtc_year; 425*0Sstevel@tonic-gate if (rtc.rtc_year <= 68) 426*0Sstevel@tonic-gate tod.tod_year += 100; 427*0Sstevel@tonic-gate tod.tod_month = rtc.rtc_mon; 428*0Sstevel@tonic-gate tod.tod_day = rtc.rtc_dom; 429*0Sstevel@tonic-gate tod.tod_dow = rtc.rtc_dow; 430*0Sstevel@tonic-gate tod.tod_hour = rtc.rtc_hrs; 431*0Sstevel@tonic-gate tod.tod_min = rtc.rtc_min; 432*0Sstevel@tonic-gate tod.tod_sec = rtc.rtc_sec; 433*0Sstevel@tonic-gate 434*0Sstevel@tonic-gate ts.tv_sec = tod_to_utc(tod); 435*0Sstevel@tonic-gate ts.tv_nsec = 0; 436*0Sstevel@tonic-gate return (ts); 437*0Sstevel@tonic-gate } 438*0Sstevel@tonic-gate 439*0Sstevel@tonic-gate /* 440*0Sstevel@tonic-gate * Program DS1337 with the specified time. 441*0Sstevel@tonic-gate * Must be called with tod_lock held. The TOD 442*0Sstevel@tonic-gate * chip supports date from 1969-2068 only. We must 443*0Sstevel@tonic-gate * reject requests to set date below 1969. 444*0Sstevel@tonic-gate */ 445*0Sstevel@tonic-gate static void 446*0Sstevel@tonic-gate todds1337_set(timestruc_t ts) 447*0Sstevel@tonic-gate { 448*0Sstevel@tonic-gate struct rtc_t rtc; 449*0Sstevel@tonic-gate todinfo_t tod = utc_to_tod(ts.tv_sec); 450*0Sstevel@tonic-gate int year; 451*0Sstevel@tonic-gate 452*0Sstevel@tonic-gate 453*0Sstevel@tonic-gate ASSERT(MUTEX_HELD(&tod_lock)); 454*0Sstevel@tonic-gate 455*0Sstevel@tonic-gate /* 456*0Sstevel@tonic-gate * Year is base 1900, valid year range 1969-2068 457*0Sstevel@tonic-gate */ 458*0Sstevel@tonic-gate if ((tod.tod_year < 69) || (tod.tod_year > 168)) 459*0Sstevel@tonic-gate return; 460*0Sstevel@tonic-gate 461*0Sstevel@tonic-gate year = tod.tod_year; 462*0Sstevel@tonic-gate if (year >= 100) 463*0Sstevel@tonic-gate year -= 100; 464*0Sstevel@tonic-gate 465*0Sstevel@tonic-gate rtc.rtc_year = (uint8_t)year; 466*0Sstevel@tonic-gate rtc.rtc_mon = (uint8_t)tod.tod_month; 467*0Sstevel@tonic-gate rtc.rtc_dom = (uint8_t)tod.tod_day; 468*0Sstevel@tonic-gate rtc.rtc_dow = (uint8_t)tod.tod_dow; 469*0Sstevel@tonic-gate rtc.rtc_hrs = (uint8_t)tod.tod_hour; 470*0Sstevel@tonic-gate rtc.rtc_min = (uint8_t)tod.tod_min; 471*0Sstevel@tonic-gate rtc.rtc_sec = (uint8_t)tod.tod_sec; 472*0Sstevel@tonic-gate 473*0Sstevel@tonic-gate (void) todds1337_write_rtc(&rtc); 474*0Sstevel@tonic-gate } 475*0Sstevel@tonic-gate 476*0Sstevel@tonic-gate /* 477*0Sstevel@tonic-gate * Program ds1337 registers for alarm to go off at the specified time. 478*0Sstevel@tonic-gate * Alarm #1 is used (Alarm #2 stays idle) 479*0Sstevel@tonic-gate */ 480*0Sstevel@tonic-gate /* ARGSUSED */ 481*0Sstevel@tonic-gate static void 482*0Sstevel@tonic-gate todds1337_set_power_alarm(timestruc_t ts) 483*0Sstevel@tonic-gate { 484*0Sstevel@tonic-gate todinfo_t tod; 485*0Sstevel@tonic-gate ds1337_state_t *statep = NULL; 486*0Sstevel@tonic-gate i2c_transfer_t *i2c_tp = NULL; 487*0Sstevel@tonic-gate uint8_t tmpval; 488*0Sstevel@tonic-gate 489*0Sstevel@tonic-gate ASSERT(MUTEX_HELD(&tod_lock)); 490*0Sstevel@tonic-gate 491*0Sstevel@tonic-gate if (!todds1337_attach_done) { 492*0Sstevel@tonic-gate cmn_err(CE_WARN, "todds1337: driver not attached"); 493*0Sstevel@tonic-gate return; 494*0Sstevel@tonic-gate } 495*0Sstevel@tonic-gate 496*0Sstevel@tonic-gate statep = ddi_get_soft_state(ds1337_statep, instance); 497*0Sstevel@tonic-gate if (statep == NULL) { 498*0Sstevel@tonic-gate cmn_err(CE_WARN, "todds1337: ddi_get_soft_state failed"); 499*0Sstevel@tonic-gate return; 500*0Sstevel@tonic-gate } 501*0Sstevel@tonic-gate 502*0Sstevel@tonic-gate tod = utc_to_tod(ts.tv_sec); 503*0Sstevel@tonic-gate 504*0Sstevel@tonic-gate /* 505*0Sstevel@tonic-gate * i2c_transfe() may block; to avoid locking clock() which 506*0Sstevel@tonic-gate * is running in interrupt context at PIL10 we temporarely exit 507*0Sstevel@tonic-gate * the tod_mutex and enter alarm lock. Time/date and alarm hardware 508*0Sstevel@tonic-gate * have non-interlsecting registers, it is safe to use different locks. 509*0Sstevel@tonic-gate */ 510*0Sstevel@tonic-gate mutex_exit(&tod_lock); 511*0Sstevel@tonic-gate mutex_enter(&todds1337_alarm_lock); 512*0Sstevel@tonic-gate 513*0Sstevel@tonic-gate /* 514*0Sstevel@tonic-gate * Disable Power Alarm (A1IE) 515*0Sstevel@tonic-gate */ 516*0Sstevel@tonic-gate (void) i2c_transfer_alloc(statep->ds1337_i2c_hdl, 517*0Sstevel@tonic-gate &i2c_tp, 1, 1, I2C_SLEEP); 518*0Sstevel@tonic-gate i2c_tp->i2c_version = I2C_XFER_REV; 519*0Sstevel@tonic-gate i2c_tp->i2c_flags = I2C_WR_RD; 520*0Sstevel@tonic-gate i2c_tp->i2c_wbuf[0] = (uchar_t)RTC_CTL; /* Read Control register */ 521*0Sstevel@tonic-gate 522*0Sstevel@tonic-gate if ((i2c_transfer(statep->ds1337_i2c_hdl, i2c_tp)) != I2C_SUCCESS) { 523*0Sstevel@tonic-gate (void) i2c_transfer_free(statep->ds1337_i2c_hdl, i2c_tp); 524*0Sstevel@tonic-gate cmn_err(CE_WARN, "todds1337_set_power_alarm: failed to read " 525*0Sstevel@tonic-gate "DS1337 control register"); 526*0Sstevel@tonic-gate mutex_exit(&todds1337_alarm_lock); 527*0Sstevel@tonic-gate mutex_enter(&tod_lock); 528*0Sstevel@tonic-gate return; 529*0Sstevel@tonic-gate } 530*0Sstevel@tonic-gate 531*0Sstevel@tonic-gate tmpval = i2c_tp->i2c_rbuf[0]; 532*0Sstevel@tonic-gate 533*0Sstevel@tonic-gate (void) i2c_transfer_free(statep->ds1337_i2c_hdl, i2c_tp); 534*0Sstevel@tonic-gate 535*0Sstevel@tonic-gate (void) i2c_transfer_alloc(statep->ds1337_i2c_hdl, 536*0Sstevel@tonic-gate &i2c_tp, 2, 0, I2C_SLEEP); 537*0Sstevel@tonic-gate i2c_tp->i2c_version = I2C_XFER_REV; 538*0Sstevel@tonic-gate i2c_tp->i2c_flags = I2C_WR; 539*0Sstevel@tonic-gate i2c_tp->i2c_wbuf[0] = (uchar_t)RTC_CTL; /* Write Control register */ 540*0Sstevel@tonic-gate i2c_tp->i2c_wbuf[1] = tmpval & ~RTC_CTL_A1IE; 541*0Sstevel@tonic-gate 542*0Sstevel@tonic-gate if ((i2c_transfer(statep->ds1337_i2c_hdl, i2c_tp)) != I2C_SUCCESS) { 543*0Sstevel@tonic-gate (void) i2c_transfer_free(statep->ds1337_i2c_hdl, i2c_tp); 544*0Sstevel@tonic-gate cmn_err(CE_WARN, "todds1337_set_power_alarm: failed to write " 545*0Sstevel@tonic-gate "DS1337control register"); 546*0Sstevel@tonic-gate mutex_exit(&todds1337_alarm_lock); 547*0Sstevel@tonic-gate mutex_enter(&tod_lock); 548*0Sstevel@tonic-gate return; 549*0Sstevel@tonic-gate } 550*0Sstevel@tonic-gate 551*0Sstevel@tonic-gate (void) i2c_transfer_free(statep->ds1337_i2c_hdl, i2c_tp); 552*0Sstevel@tonic-gate 553*0Sstevel@tonic-gate 554*0Sstevel@tonic-gate /* 555*0Sstevel@tonic-gate * Write Alarm #1 registers 556*0Sstevel@tonic-gate */ 557*0Sstevel@tonic-gate 558*0Sstevel@tonic-gate (void) i2c_transfer_alloc(statep->ds1337_i2c_hdl, 559*0Sstevel@tonic-gate &i2c_tp, 5, 0, I2C_SLEEP); 560*0Sstevel@tonic-gate i2c_tp->i2c_version = I2C_XFER_REV; 561*0Sstevel@tonic-gate i2c_tp->i2c_flags = I2C_WR; 562*0Sstevel@tonic-gate i2c_tp->i2c_wbuf[0] = (uchar_t)RTC_ALARM_SEC; /* Alarm #1 Seconds */ 563*0Sstevel@tonic-gate i2c_tp->i2c_wbuf[1] = BYTE_TO_BCD(tod.tod_sec); 564*0Sstevel@tonic-gate i2c_tp->i2c_wbuf[2] = BYTE_TO_BCD(tod.tod_min); 565*0Sstevel@tonic-gate i2c_tp->i2c_wbuf[3] = BYTE_TO_BCD(tod.tod_hour); 566*0Sstevel@tonic-gate i2c_tp->i2c_wbuf[4] = BYTE_TO_BCD(tod.tod_day); 567*0Sstevel@tonic-gate 568*0Sstevel@tonic-gate if ((i2c_transfer(statep->ds1337_i2c_hdl, i2c_tp)) != I2C_SUCCESS) { 569*0Sstevel@tonic-gate (void) i2c_transfer_free(statep->ds1337_i2c_hdl, i2c_tp); 570*0Sstevel@tonic-gate cmn_err(CE_WARN, "todds1337_set_power_alarm: failed to write " 571*0Sstevel@tonic-gate "DS1337 alarm registers"); 572*0Sstevel@tonic-gate mutex_exit(&todds1337_alarm_lock); 573*0Sstevel@tonic-gate mutex_enter(&tod_lock); 574*0Sstevel@tonic-gate return; 575*0Sstevel@tonic-gate } 576*0Sstevel@tonic-gate 577*0Sstevel@tonic-gate (void) i2c_transfer_free(statep->ds1337_i2c_hdl, i2c_tp); 578*0Sstevel@tonic-gate 579*0Sstevel@tonic-gate 580*0Sstevel@tonic-gate /* 581*0Sstevel@tonic-gate * Enable Power Alarm 582*0Sstevel@tonic-gate */ 583*0Sstevel@tonic-gate (void) i2c_transfer_alloc(statep->ds1337_i2c_hdl, 584*0Sstevel@tonic-gate &i2c_tp, 2, 0, I2C_SLEEP); 585*0Sstevel@tonic-gate i2c_tp->i2c_version = I2C_XFER_REV; 586*0Sstevel@tonic-gate i2c_tp->i2c_flags = I2C_WR; 587*0Sstevel@tonic-gate i2c_tp->i2c_wbuf[0] = (uchar_t)RTC_CTL; /* Write Control register */ 588*0Sstevel@tonic-gate i2c_tp->i2c_wbuf[1] = tmpval | RTC_CTL_A1IE; 589*0Sstevel@tonic-gate 590*0Sstevel@tonic-gate if ((i2c_transfer(statep->ds1337_i2c_hdl, i2c_tp)) != I2C_SUCCESS) { 591*0Sstevel@tonic-gate (void) i2c_transfer_free(statep->ds1337_i2c_hdl, i2c_tp); 592*0Sstevel@tonic-gate cmn_err(CE_WARN, "todds1337_set_power_alarm: failed to enable " 593*0Sstevel@tonic-gate "DS1337 alarm"); 594*0Sstevel@tonic-gate mutex_exit(&todds1337_alarm_lock); 595*0Sstevel@tonic-gate mutex_enter(&tod_lock); 596*0Sstevel@tonic-gate return; 597*0Sstevel@tonic-gate } 598*0Sstevel@tonic-gate 599*0Sstevel@tonic-gate (void) i2c_transfer_free(statep->ds1337_i2c_hdl, i2c_tp); 600*0Sstevel@tonic-gate 601*0Sstevel@tonic-gate mutex_exit(&todds1337_alarm_lock); 602*0Sstevel@tonic-gate mutex_enter(&tod_lock); 603*0Sstevel@tonic-gate } 604*0Sstevel@tonic-gate 605*0Sstevel@tonic-gate /* ARGSUSED */ 606*0Sstevel@tonic-gate static void 607*0Sstevel@tonic-gate todds1337_clear_power_alarm(void) 608*0Sstevel@tonic-gate { 609*0Sstevel@tonic-gate ds1337_state_t *statep = NULL; 610*0Sstevel@tonic-gate i2c_transfer_t *i2c_tp = NULL; 611*0Sstevel@tonic-gate uint8_t tmpval; 612*0Sstevel@tonic-gate 613*0Sstevel@tonic-gate ASSERT(MUTEX_HELD(&tod_lock)); 614*0Sstevel@tonic-gate 615*0Sstevel@tonic-gate if (!todds1337_attach_done) { 616*0Sstevel@tonic-gate cmn_err(CE_WARN, "todds1337: driver was not attached"); 617*0Sstevel@tonic-gate return; 618*0Sstevel@tonic-gate } 619*0Sstevel@tonic-gate 620*0Sstevel@tonic-gate statep = ddi_get_soft_state(ds1337_statep, instance); 621*0Sstevel@tonic-gate if (statep == NULL) { 622*0Sstevel@tonic-gate cmn_err(CE_WARN, "todds1337: ddi_get_soft_state has failed"); 623*0Sstevel@tonic-gate return; 624*0Sstevel@tonic-gate } 625*0Sstevel@tonic-gate 626*0Sstevel@tonic-gate /* 627*0Sstevel@tonic-gate * i2c_transfe() may block; to avoid locking clock() which 628*0Sstevel@tonic-gate * is running in interrupt context at PIL10 we temporarely exit 629*0Sstevel@tonic-gate * the tod_mutex and enter alarm lock. Time/date and alarm hardware 630*0Sstevel@tonic-gate * have non-interlsecting registers, it is safe to use different locks. 631*0Sstevel@tonic-gate */ 632*0Sstevel@tonic-gate mutex_exit(&tod_lock); 633*0Sstevel@tonic-gate mutex_enter(&todds1337_alarm_lock); 634*0Sstevel@tonic-gate 635*0Sstevel@tonic-gate /* 636*0Sstevel@tonic-gate * Disable Alarm #1 Interrupt 637*0Sstevel@tonic-gate */ 638*0Sstevel@tonic-gate (void) i2c_transfer_alloc(statep->ds1337_i2c_hdl, 639*0Sstevel@tonic-gate &i2c_tp, 1, 1, I2C_SLEEP); 640*0Sstevel@tonic-gate i2c_tp->i2c_version = I2C_XFER_REV; 641*0Sstevel@tonic-gate i2c_tp->i2c_flags = I2C_WR_RD; 642*0Sstevel@tonic-gate i2c_tp->i2c_wbuf[0] = (uchar_t)RTC_CTL; /* Read Control register */ 643*0Sstevel@tonic-gate 644*0Sstevel@tonic-gate if ((i2c_transfer(statep->ds1337_i2c_hdl, i2c_tp)) != I2C_SUCCESS) { 645*0Sstevel@tonic-gate (void) i2c_transfer_free(statep->ds1337_i2c_hdl, i2c_tp); 646*0Sstevel@tonic-gate cmn_err(CE_WARN, "todds1337_clear_power_alarm: failed to read " 647*0Sstevel@tonic-gate "DS1337 control register"); 648*0Sstevel@tonic-gate mutex_exit(&todds1337_alarm_lock); 649*0Sstevel@tonic-gate mutex_enter(&tod_lock); 650*0Sstevel@tonic-gate return; 651*0Sstevel@tonic-gate } 652*0Sstevel@tonic-gate 653*0Sstevel@tonic-gate tmpval = i2c_tp->i2c_rbuf[0]; 654*0Sstevel@tonic-gate 655*0Sstevel@tonic-gate (void) i2c_transfer_free(statep->ds1337_i2c_hdl, i2c_tp); 656*0Sstevel@tonic-gate 657*0Sstevel@tonic-gate (void) i2c_transfer_alloc(statep->ds1337_i2c_hdl, 658*0Sstevel@tonic-gate &i2c_tp, 2, 0, I2C_SLEEP); 659*0Sstevel@tonic-gate i2c_tp->i2c_version = I2C_XFER_REV; 660*0Sstevel@tonic-gate i2c_tp->i2c_flags = I2C_WR; 661*0Sstevel@tonic-gate i2c_tp->i2c_wbuf[0] = (uchar_t)RTC_CTL; /* Write Control register */ 662*0Sstevel@tonic-gate i2c_tp->i2c_wbuf[1] = tmpval & ~RTC_CTL_A1IE; 663*0Sstevel@tonic-gate 664*0Sstevel@tonic-gate if ((i2c_transfer(statep->ds1337_i2c_hdl, i2c_tp)) != I2C_SUCCESS) { 665*0Sstevel@tonic-gate (void) i2c_transfer_free(statep->ds1337_i2c_hdl, i2c_tp); 666*0Sstevel@tonic-gate cmn_err(CE_WARN, "todds1337_clear_power_alarm: failed to write " 667*0Sstevel@tonic-gate "DS1337 control register"); 668*0Sstevel@tonic-gate mutex_exit(&todds1337_alarm_lock); 669*0Sstevel@tonic-gate mutex_enter(&tod_lock); 670*0Sstevel@tonic-gate return; 671*0Sstevel@tonic-gate } 672*0Sstevel@tonic-gate 673*0Sstevel@tonic-gate (void) i2c_transfer_free(statep->ds1337_i2c_hdl, i2c_tp); 674*0Sstevel@tonic-gate 675*0Sstevel@tonic-gate /* 676*0Sstevel@tonic-gate * Reset Alarm #1 Flag 677*0Sstevel@tonic-gate */ 678*0Sstevel@tonic-gate (void) i2c_transfer_alloc(statep->ds1337_i2c_hdl, 679*0Sstevel@tonic-gate &i2c_tp, 1, 1, I2C_SLEEP); 680*0Sstevel@tonic-gate i2c_tp->i2c_version = I2C_XFER_REV; 681*0Sstevel@tonic-gate i2c_tp->i2c_flags = I2C_WR_RD; 682*0Sstevel@tonic-gate i2c_tp->i2c_wbuf[0] = (uchar_t)RTC_STATUS; /* Read Status register */ 683*0Sstevel@tonic-gate 684*0Sstevel@tonic-gate if ((i2c_transfer(statep->ds1337_i2c_hdl, i2c_tp)) != I2C_SUCCESS) { 685*0Sstevel@tonic-gate (void) i2c_transfer_free(statep->ds1337_i2c_hdl, i2c_tp); 686*0Sstevel@tonic-gate cmn_err(CE_WARN, "todds1337_clear_power_alarm: failed to read " 687*0Sstevel@tonic-gate "DS1337 status register"); 688*0Sstevel@tonic-gate mutex_exit(&todds1337_alarm_lock); 689*0Sstevel@tonic-gate mutex_enter(&tod_lock); 690*0Sstevel@tonic-gate return; 691*0Sstevel@tonic-gate } 692*0Sstevel@tonic-gate 693*0Sstevel@tonic-gate tmpval = i2c_tp->i2c_rbuf[0]; 694*0Sstevel@tonic-gate 695*0Sstevel@tonic-gate (void) i2c_transfer_free(statep->ds1337_i2c_hdl, i2c_tp); 696*0Sstevel@tonic-gate 697*0Sstevel@tonic-gate (void) i2c_transfer_alloc(statep->ds1337_i2c_hdl, 698*0Sstevel@tonic-gate &i2c_tp, 2, 0, I2C_SLEEP); 699*0Sstevel@tonic-gate i2c_tp->i2c_version = I2C_XFER_REV; 700*0Sstevel@tonic-gate i2c_tp->i2c_flags = I2C_WR; 701*0Sstevel@tonic-gate i2c_tp->i2c_wbuf[0] = (uchar_t)RTC_STATUS; /* Write Status register */ 702*0Sstevel@tonic-gate i2c_tp->i2c_wbuf[1] = tmpval & ~RTC_STATUS_A1F; 703*0Sstevel@tonic-gate 704*0Sstevel@tonic-gate if ((i2c_transfer(statep->ds1337_i2c_hdl, i2c_tp)) != I2C_SUCCESS) { 705*0Sstevel@tonic-gate (void) i2c_transfer_free(statep->ds1337_i2c_hdl, i2c_tp); 706*0Sstevel@tonic-gate cmn_err(CE_WARN, "todds1337_clear_power_alarm: failed to write " 707*0Sstevel@tonic-gate "DS1337 status register"); 708*0Sstevel@tonic-gate mutex_exit(&todds1337_alarm_lock); 709*0Sstevel@tonic-gate mutex_enter(&tod_lock); 710*0Sstevel@tonic-gate return; 711*0Sstevel@tonic-gate } 712*0Sstevel@tonic-gate 713*0Sstevel@tonic-gate (void) i2c_transfer_free(statep->ds1337_i2c_hdl, i2c_tp); 714*0Sstevel@tonic-gate 715*0Sstevel@tonic-gate mutex_exit(&todds1337_alarm_lock); 716*0Sstevel@tonic-gate mutex_enter(&tod_lock); 717*0Sstevel@tonic-gate } 718*0Sstevel@tonic-gate 719*0Sstevel@tonic-gate /* ARGSUSED */ 720*0Sstevel@tonic-gate static uint_t 721*0Sstevel@tonic-gate todds1337_set_watchdog_timer(uint_t timeoutval) 722*0Sstevel@tonic-gate { 723*0Sstevel@tonic-gate ASSERT(MUTEX_HELD(&tod_lock)); 724*0Sstevel@tonic-gate return (0); 725*0Sstevel@tonic-gate } 726*0Sstevel@tonic-gate 727*0Sstevel@tonic-gate /* ARGSUSED */ 728*0Sstevel@tonic-gate static uint_t 729*0Sstevel@tonic-gate todds1337_clear_watchdog_timer(void) 730*0Sstevel@tonic-gate { 731*0Sstevel@tonic-gate ASSERT(MUTEX_HELD(&tod_lock)); 732*0Sstevel@tonic-gate return (0); 733*0Sstevel@tonic-gate } 734*0Sstevel@tonic-gate 735*0Sstevel@tonic-gate /* ********************** Local functions ***************************** */ 736*0Sstevel@tonic-gate 737*0Sstevel@tonic-gate static char tod_read[7] = {-1, -1, -1, -1, -1, -1, -1}; 738*0Sstevel@tonic-gate static int 739*0Sstevel@tonic-gate todds1337_read_rtc(struct rtc_t *rtc) 740*0Sstevel@tonic-gate { 741*0Sstevel@tonic-gate static ds1337_state_t *statep = NULL; 742*0Sstevel@tonic-gate i2c_transfer_t *i2c_tp = NULL; 743*0Sstevel@tonic-gate int i2c_cmd_status = I2C_FAILURE; 744*0Sstevel@tonic-gate int counter = 4; 745*0Sstevel@tonic-gate 746*0Sstevel@tonic-gate if (!todds1337_attach_done) { 747*0Sstevel@tonic-gate return (todds1337_prom_getdate(rtc)); 748*0Sstevel@tonic-gate } 749*0Sstevel@tonic-gate 750*0Sstevel@tonic-gate statep = ddi_get_soft_state(ds1337_statep, instance); 751*0Sstevel@tonic-gate if (statep == NULL) { 752*0Sstevel@tonic-gate cmn_err(CE_WARN, "todds1337: ddi_get_soft_state failing"); 753*0Sstevel@tonic-gate return (DDI_FAILURE); 754*0Sstevel@tonic-gate } 755*0Sstevel@tonic-gate 756*0Sstevel@tonic-gate mutex_enter(&todds1337_rd_lock); 757*0Sstevel@tonic-gate 758*0Sstevel@tonic-gate /* 759*0Sstevel@tonic-gate * Allocate 1 byte for write buffer and 7 bytes for read buffer to 760*0Sstevel@tonic-gate * to accomodate sec, min, hrs, dayOfWeek, dayOfMonth, year 761*0Sstevel@tonic-gate */ 762*0Sstevel@tonic-gate if ((i2c_transfer_alloc(statep->ds1337_i2c_hdl, &i2c_tp, 1, 763*0Sstevel@tonic-gate 7, I2C_SLEEP)) != I2C_SUCCESS) { 764*0Sstevel@tonic-gate mutex_exit(&todds1337_rd_lock); 765*0Sstevel@tonic-gate return (DDI_FAILURE); 766*0Sstevel@tonic-gate } 767*0Sstevel@tonic-gate 768*0Sstevel@tonic-gate do { 769*0Sstevel@tonic-gate i2c_tp->i2c_version = I2C_XFER_REV; 770*0Sstevel@tonic-gate i2c_tp->i2c_flags = I2C_WR_RD; 771*0Sstevel@tonic-gate i2c_tp->i2c_wbuf[0] = (uchar_t)RTC_SEC; /* Start from 0x00 */ 772*0Sstevel@tonic-gate i2c_tp->i2c_wlen = 1; /* Write one byte address */ 773*0Sstevel@tonic-gate i2c_tp->i2c_rlen = 7; /* Read 7 regs */ 774*0Sstevel@tonic-gate 775*0Sstevel@tonic-gate if ((i2c_cmd_status = i2c_transfer(statep->ds1337_i2c_hdl, 776*0Sstevel@tonic-gate i2c_tp)) != I2C_SUCCESS) { 777*0Sstevel@tonic-gate goto done; 778*0Sstevel@tonic-gate } 779*0Sstevel@tonic-gate /* for first read, need to get valid data */ 780*0Sstevel@tonic-gate while (tod_read[0] == -1 && counter > 0) { 781*0Sstevel@tonic-gate /* move data to static buffer */ 782*0Sstevel@tonic-gate bcopy(i2c_tp->i2c_rbuf, tod_read, 7); 783*0Sstevel@tonic-gate 784*0Sstevel@tonic-gate /* now read again */ 785*0Sstevel@tonic-gate /* Start reading reg from 0x00 */ 786*0Sstevel@tonic-gate i2c_tp->i2c_wbuf[0] = (uchar_t)0x00; 787*0Sstevel@tonic-gate i2c_tp->i2c_wlen = 1; /* Write one byte address */ 788*0Sstevel@tonic-gate i2c_tp->i2c_rlen = 7; /* Read 7 regs */ 789*0Sstevel@tonic-gate if ((i2c_cmd_status = i2c_transfer(statep->ds1337_i2c_hdl, 790*0Sstevel@tonic-gate i2c_tp)) != I2C_SUCCESS) { 791*0Sstevel@tonic-gate goto done; 792*0Sstevel@tonic-gate } 793*0Sstevel@tonic-gate /* if they are not the same, then read again */ 794*0Sstevel@tonic-gate if (bcmp(tod_read, i2c_tp->i2c_rbuf, 7) != 0) { 795*0Sstevel@tonic-gate tod_read[0] = -1; 796*0Sstevel@tonic-gate counter--; 797*0Sstevel@tonic-gate } 798*0Sstevel@tonic-gate } 799*0Sstevel@tonic-gate 800*0Sstevel@tonic-gate } while (i2c_tp->i2c_rbuf[0] == 0x59 && 801*0Sstevel@tonic-gate /* if seconds register is 0x59 (BCD), add data should match */ 802*0Sstevel@tonic-gate bcmp(&tod_read[1], &i2c_tp->i2c_rbuf[1], 6) != 0 && 803*0Sstevel@tonic-gate counter-- > 0); 804*0Sstevel@tonic-gate 805*0Sstevel@tonic-gate if (counter < 0) 806*0Sstevel@tonic-gate cmn_err(CE_WARN, "i2ctod: TOD Chip failed ??"); 807*0Sstevel@tonic-gate 808*0Sstevel@tonic-gate /* move data to static buffer */ 809*0Sstevel@tonic-gate bcopy(i2c_tp->i2c_rbuf, tod_read, 7); 810*0Sstevel@tonic-gate 811*0Sstevel@tonic-gate 812*0Sstevel@tonic-gate rtc->rtc_year = BCD_TO_BYTE(i2c_tp->i2c_rbuf[6]); 813*0Sstevel@tonic-gate rtc->rtc_mon = BCD_TO_BYTE(i2c_tp->i2c_rbuf[5]); 814*0Sstevel@tonic-gate rtc->rtc_dom = BCD_TO_BYTE(i2c_tp->i2c_rbuf[4]); 815*0Sstevel@tonic-gate rtc->rtc_dow = BCD_TO_BYTE(i2c_tp->i2c_rbuf[3]); 816*0Sstevel@tonic-gate rtc->rtc_hrs = BCD_TO_BYTE(i2c_tp->i2c_rbuf[2]); 817*0Sstevel@tonic-gate rtc->rtc_min = BCD_TO_BYTE(i2c_tp->i2c_rbuf[1]); 818*0Sstevel@tonic-gate rtc->rtc_sec = BCD_TO_BYTE(i2c_tp->i2c_rbuf[0]); 819*0Sstevel@tonic-gate 820*0Sstevel@tonic-gate done: 821*0Sstevel@tonic-gate (void) i2c_transfer_free(statep->ds1337_i2c_hdl, i2c_tp); 822*0Sstevel@tonic-gate 823*0Sstevel@tonic-gate mutex_exit(&todds1337_rd_lock); 824*0Sstevel@tonic-gate return (i2c_cmd_status); 825*0Sstevel@tonic-gate } 826*0Sstevel@tonic-gate 827*0Sstevel@tonic-gate 828*0Sstevel@tonic-gate static int 829*0Sstevel@tonic-gate todds1337_write_rtc(struct rtc_t *rtc) 830*0Sstevel@tonic-gate { 831*0Sstevel@tonic-gate ds1337_state_t *statep = NULL; 832*0Sstevel@tonic-gate i2c_transfer_t *i2c_tp = NULL; 833*0Sstevel@tonic-gate int i2c_cmd_status = I2C_SUCCESS; 834*0Sstevel@tonic-gate 835*0Sstevel@tonic-gate 836*0Sstevel@tonic-gate if (!todds1337_attach_done) { 837*0Sstevel@tonic-gate return (todds1337_prom_setdate(rtc)); 838*0Sstevel@tonic-gate } 839*0Sstevel@tonic-gate 840*0Sstevel@tonic-gate statep = ddi_get_soft_state(ds1337_statep, instance); 841*0Sstevel@tonic-gate if (statep == NULL) { 842*0Sstevel@tonic-gate return (DDI_FAILURE); 843*0Sstevel@tonic-gate } 844*0Sstevel@tonic-gate 845*0Sstevel@tonic-gate if ((i2c_cmd_status = i2c_transfer_alloc(statep->ds1337_i2c_hdl, 846*0Sstevel@tonic-gate &i2c_tp, 8, 0, I2C_SLEEP)) != I2C_SUCCESS) { 847*0Sstevel@tonic-gate return (i2c_cmd_status); 848*0Sstevel@tonic-gate } 849*0Sstevel@tonic-gate 850*0Sstevel@tonic-gate i2c_tp->i2c_version = I2C_XFER_REV; 851*0Sstevel@tonic-gate i2c_tp->i2c_flags = I2C_WR; 852*0Sstevel@tonic-gate i2c_tp->i2c_wbuf[0] = (uchar_t)RTC_SEC; 853*0Sstevel@tonic-gate i2c_tp->i2c_wbuf[1] = BYTE_TO_BCD(rtc->rtc_sec); 854*0Sstevel@tonic-gate i2c_tp->i2c_wbuf[2] = BYTE_TO_BCD(rtc->rtc_min); 855*0Sstevel@tonic-gate i2c_tp->i2c_wbuf[3] = BYTE_TO_BCD(rtc->rtc_hrs); 856*0Sstevel@tonic-gate i2c_tp->i2c_wbuf[4] = BYTE_TO_BCD(rtc->rtc_dow); 857*0Sstevel@tonic-gate i2c_tp->i2c_wbuf[5] = BYTE_TO_BCD(rtc->rtc_dom); 858*0Sstevel@tonic-gate i2c_tp->i2c_wbuf[6] = BYTE_TO_BCD(rtc->rtc_mon); 859*0Sstevel@tonic-gate i2c_tp->i2c_wbuf[7] = BYTE_TO_BCD(rtc->rtc_year); 860*0Sstevel@tonic-gate i2c_tp->i2c_wlen = 8; 861*0Sstevel@tonic-gate 862*0Sstevel@tonic-gate if ((i2c_cmd_status = i2c_transfer(statep->ds1337_i2c_hdl, 863*0Sstevel@tonic-gate i2c_tp)) != I2C_SUCCESS) { 864*0Sstevel@tonic-gate (void) i2c_transfer_free(statep->ds1337_i2c_hdl, i2c_tp); 865*0Sstevel@tonic-gate return (i2c_cmd_status); 866*0Sstevel@tonic-gate } 867*0Sstevel@tonic-gate 868*0Sstevel@tonic-gate tod_read[0] = -1; /* invalidate saved data from read routine */ 869*0Sstevel@tonic-gate 870*0Sstevel@tonic-gate (void) i2c_transfer_free(statep->ds1337_i2c_hdl, i2c_tp); 871*0Sstevel@tonic-gate 872*0Sstevel@tonic-gate return (i2c_cmd_status); 873*0Sstevel@tonic-gate } 874*0Sstevel@tonic-gate 875*0Sstevel@tonic-gate 876*0Sstevel@tonic-gate /*ARGSUSED*/ 877*0Sstevel@tonic-gate static int 878*0Sstevel@tonic-gate todds1337_getinfo(dev_info_t *dip, ddi_info_cmd_t infocmd, void *arg, 879*0Sstevel@tonic-gate void **result) 880*0Sstevel@tonic-gate { 881*0Sstevel@tonic-gate ds1337_state_t *softsp; 882*0Sstevel@tonic-gate 883*0Sstevel@tonic-gate if (instance == -1) { 884*0Sstevel@tonic-gate return (DDI_FAILURE); 885*0Sstevel@tonic-gate } 886*0Sstevel@tonic-gate 887*0Sstevel@tonic-gate switch (infocmd) { 888*0Sstevel@tonic-gate case DDI_INFO_DEVT2DEVINFO: 889*0Sstevel@tonic-gate if ((softsp = ddi_get_soft_state(ds1337_statep, instance)) == 890*0Sstevel@tonic-gate NULL) 891*0Sstevel@tonic-gate return (DDI_FAILURE); 892*0Sstevel@tonic-gate *result = (void *)softsp->dip; 893*0Sstevel@tonic-gate return (DDI_SUCCESS); 894*0Sstevel@tonic-gate case DDI_INFO_DEVT2INSTANCE: 895*0Sstevel@tonic-gate *result = (void *)instance; 896*0Sstevel@tonic-gate return (DDI_SUCCESS); 897*0Sstevel@tonic-gate default: 898*0Sstevel@tonic-gate return (DDI_FAILURE); 899*0Sstevel@tonic-gate } 900*0Sstevel@tonic-gate } 901*0Sstevel@tonic-gate 902*0Sstevel@tonic-gate /* 903*0Sstevel@tonic-gate * Finds the device node with device_type "rtc" and opens it to 904*0Sstevel@tonic-gate * execute the get-time method 905*0Sstevel@tonic-gate */ 906*0Sstevel@tonic-gate static int 907*0Sstevel@tonic-gate todds1337_setup_prom() 908*0Sstevel@tonic-gate { 909*0Sstevel@tonic-gate dnode_t todnode; 910*0Sstevel@tonic-gate char tod1337_devpath[MAXNAMELEN]; 911*0Sstevel@tonic-gate 912*0Sstevel@tonic-gate if ((todnode = prom_findnode_bydevtype(prom_rootnode(), 913*0Sstevel@tonic-gate DS1337_DEVICE_TYPE)) == OBP_NONODE) 914*0Sstevel@tonic-gate return (DDI_FAILURE); 915*0Sstevel@tonic-gate 916*0Sstevel@tonic-gate /* 917*0Sstevel@tonic-gate * We now have the phandle of the rtc node, we need to open the 918*0Sstevel@tonic-gate * node and get the ihandle 919*0Sstevel@tonic-gate */ 920*0Sstevel@tonic-gate if (prom_phandle_to_path(todnode, tod1337_devpath, 921*0Sstevel@tonic-gate sizeof (tod1337_devpath)) < 0) { 922*0Sstevel@tonic-gate cmn_err(CE_WARN, "prom_phandle_to_path failed"); 923*0Sstevel@tonic-gate return (DDI_FAILURE); 924*0Sstevel@tonic-gate } 925*0Sstevel@tonic-gate 926*0Sstevel@tonic-gate /* 927*0Sstevel@tonic-gate * Now open the node and store it's ihandle 928*0Sstevel@tonic-gate */ 929*0Sstevel@tonic-gate if ((todds1337_ihandle = prom_open(tod1337_devpath)) == NULL) { 930*0Sstevel@tonic-gate cmn_err(CE_WARN, "prom_open failed"); 931*0Sstevel@tonic-gate return (DDI_FAILURE); 932*0Sstevel@tonic-gate } 933*0Sstevel@tonic-gate 934*0Sstevel@tonic-gate return (DDI_SUCCESS); 935*0Sstevel@tonic-gate } 936*0Sstevel@tonic-gate 937*0Sstevel@tonic-gate /* 938*0Sstevel@tonic-gate * Closes the prom interface 939*0Sstevel@tonic-gate */ 940*0Sstevel@tonic-gate static void 941*0Sstevel@tonic-gate todds1337_rele_prom() 942*0Sstevel@tonic-gate { 943*0Sstevel@tonic-gate (void) prom_close(todds1337_ihandle); 944*0Sstevel@tonic-gate } 945*0Sstevel@tonic-gate 946*0Sstevel@tonic-gate /* 947*0Sstevel@tonic-gate * Read the date using "get-time" method in rtc node 948*0Sstevel@tonic-gate * PROM returns 1969-1999 when reading 69-99 and 949*0Sstevel@tonic-gate * 2000-2068 when reading 00-68 950*0Sstevel@tonic-gate */ 951*0Sstevel@tonic-gate static int 952*0Sstevel@tonic-gate todds1337_prom_getdate(struct rtc_t *rtc) 953*0Sstevel@tonic-gate { 954*0Sstevel@tonic-gate int year; 955*0Sstevel@tonic-gate cell_t ci[12]; 956*0Sstevel@tonic-gate 957*0Sstevel@tonic-gate ci[0] = p1275_ptr2cell("call-method"); /* Service name */ 958*0Sstevel@tonic-gate ci[1] = 2; /* # of arguments */ 959*0Sstevel@tonic-gate ci[2] = 7; /* # of result cells */ 960*0Sstevel@tonic-gate ci[3] = p1275_ptr2cell("get-time"); 961*0Sstevel@tonic-gate ci[4] = p1275_ihandle2cell(todds1337_ihandle); 962*0Sstevel@tonic-gate 963*0Sstevel@tonic-gate promif_preprom(); 964*0Sstevel@tonic-gate (void) p1275_cif_handler(&ci); 965*0Sstevel@tonic-gate promif_postprom(); 966*0Sstevel@tonic-gate 967*0Sstevel@tonic-gate year = p1275_cell2int(ci[6]); 968*0Sstevel@tonic-gate rtc->rtc_mon = p1275_cell2int(ci[7]); 969*0Sstevel@tonic-gate rtc->rtc_dom = p1275_cell2int(ci[8]); 970*0Sstevel@tonic-gate rtc->rtc_dow = 0; 971*0Sstevel@tonic-gate rtc->rtc_hrs = p1275_cell2int(ci[9]); 972*0Sstevel@tonic-gate rtc->rtc_min = p1275_cell2int(ci[10]); 973*0Sstevel@tonic-gate rtc->rtc_sec = p1275_cell2int(ci[11]); 974*0Sstevel@tonic-gate if (year >= 2000) 975*0Sstevel@tonic-gate year -= 2000; 976*0Sstevel@tonic-gate else 977*0Sstevel@tonic-gate year -= 1900; 978*0Sstevel@tonic-gate rtc->rtc_year = year; 979*0Sstevel@tonic-gate 980*0Sstevel@tonic-gate return (DDI_SUCCESS); 981*0Sstevel@tonic-gate } 982*0Sstevel@tonic-gate 983*0Sstevel@tonic-gate /* 984*0Sstevel@tonic-gate * Read the date using "set-time" method in rtc node 985*0Sstevel@tonic-gate * For values 00 - 68, write 2000-2068, and for 69-99, 986*0Sstevel@tonic-gate * write 1969-1999 987*0Sstevel@tonic-gate */ 988*0Sstevel@tonic-gate static int 989*0Sstevel@tonic-gate todds1337_prom_setdate(struct rtc_t *rtc) 990*0Sstevel@tonic-gate { 991*0Sstevel@tonic-gate int year; 992*0Sstevel@tonic-gate cell_t ci[12]; 993*0Sstevel@tonic-gate 994*0Sstevel@tonic-gate year = rtc->rtc_year; 995*0Sstevel@tonic-gate 996*0Sstevel@tonic-gate if ((year < 0) || (year > 99)) 997*0Sstevel@tonic-gate return (DDI_FAILURE); 998*0Sstevel@tonic-gate 999*0Sstevel@tonic-gate if (year <= 68) 1000*0Sstevel@tonic-gate year = rtc->rtc_year + 2000; 1001*0Sstevel@tonic-gate else 1002*0Sstevel@tonic-gate year = rtc->rtc_year + 1900; 1003*0Sstevel@tonic-gate 1004*0Sstevel@tonic-gate ci[0] = p1275_ptr2cell("call-method"); /* Service name */ 1005*0Sstevel@tonic-gate ci[1] = 8; /* # of arguments */ 1006*0Sstevel@tonic-gate ci[2] = 0; /* # of result cells */ 1007*0Sstevel@tonic-gate ci[3] = p1275_ptr2cell("set-time"); 1008*0Sstevel@tonic-gate ci[4] = p1275_ihandle2cell(todds1337_ihandle); 1009*0Sstevel@tonic-gate ci[5] = p1275_int2cell(year); 1010*0Sstevel@tonic-gate ci[6] = p1275_int2cell(rtc->rtc_mon); 1011*0Sstevel@tonic-gate ci[7] = p1275_int2cell(rtc->rtc_dom); 1012*0Sstevel@tonic-gate ci[8] = p1275_int2cell(rtc->rtc_hrs); 1013*0Sstevel@tonic-gate ci[9] = p1275_int2cell(rtc->rtc_min); 1014*0Sstevel@tonic-gate ci[10] = p1275_int2cell(rtc->rtc_sec); 1015*0Sstevel@tonic-gate 1016*0Sstevel@tonic-gate promif_preprom(); 1017*0Sstevel@tonic-gate (void) p1275_cif_handler(&ci); 1018*0Sstevel@tonic-gate promif_postprom(); 1019*0Sstevel@tonic-gate 1020*0Sstevel@tonic-gate return (DDI_SUCCESS); 1021*0Sstevel@tonic-gate } 1022