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 (c) 1999-2001 by Sun Microsystems, Inc. 24*0Sstevel@tonic-gate * All rights reserved. 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 /* 30*0Sstevel@tonic-gate * The max1617 I2C is a temp acquisition device. As implemented on some 31*0Sstevel@tonic-gate * processor modules, it contains both a local and a remote temp. The 32*0Sstevel@tonic-gate * local temp measures the ambient (room) temperature, while the remote 33*0Sstevel@tonic-gate * sensor is connected to the processor die. There are ioctl's for retrieving 34*0Sstevel@tonic-gate * temperatures, and setting temperature alarm ranges. 35*0Sstevel@tonic-gate */ 36*0Sstevel@tonic-gate 37*0Sstevel@tonic-gate #include <sys/stat.h> 38*0Sstevel@tonic-gate #include <sys/modctl.h> 39*0Sstevel@tonic-gate #include <sys/open.h> 40*0Sstevel@tonic-gate #include <sys/types.h> 41*0Sstevel@tonic-gate #include <sys/kmem.h> 42*0Sstevel@tonic-gate #include <sys/ddi.h> 43*0Sstevel@tonic-gate #include <sys/sunddi.h> 44*0Sstevel@tonic-gate #include <sys/conf.h> 45*0Sstevel@tonic-gate #include <sys/file.h> 46*0Sstevel@tonic-gate #include <sys/note.h> 47*0Sstevel@tonic-gate 48*0Sstevel@tonic-gate #include <sys/i2c/misc/i2c_svc.h> 49*0Sstevel@tonic-gate #include <sys/i2c/clients/i2c_client.h> 50*0Sstevel@tonic-gate #include <sys/i2c/clients/max1617.h> 51*0Sstevel@tonic-gate #include <sys/i2c/clients/max1617_impl.h> 52*0Sstevel@tonic-gate 53*0Sstevel@tonic-gate /* 54*0Sstevel@tonic-gate * cb ops (only need ioctl) 55*0Sstevel@tonic-gate */ 56*0Sstevel@tonic-gate static int max1617_open(dev_t *, int, int, cred_t *); 57*0Sstevel@tonic-gate static int max1617_close(dev_t, int, int, cred_t *); 58*0Sstevel@tonic-gate static int max1617_ioctl(dev_t, int, intptr_t, int, cred_t *, int *); 59*0Sstevel@tonic-gate 60*0Sstevel@tonic-gate /* 61*0Sstevel@tonic-gate * dev ops 62*0Sstevel@tonic-gate */ 63*0Sstevel@tonic-gate static int max1617_info(dev_info_t *dip, ddi_info_cmd_t infocmd, void *arg, 64*0Sstevel@tonic-gate void **result); 65*0Sstevel@tonic-gate static int max1617_attach(dev_info_t *dip, ddi_attach_cmd_t cmd); 66*0Sstevel@tonic-gate static int max1617_detach(dev_info_t *dip, ddi_detach_cmd_t cmd); 67*0Sstevel@tonic-gate 68*0Sstevel@tonic-gate static struct cb_ops max1617_cbops = { 69*0Sstevel@tonic-gate max1617_open, /* open */ 70*0Sstevel@tonic-gate max1617_close, /* close */ 71*0Sstevel@tonic-gate nodev, /* strategy */ 72*0Sstevel@tonic-gate nodev, /* print */ 73*0Sstevel@tonic-gate nodev, /* dump */ 74*0Sstevel@tonic-gate nodev, /* read */ 75*0Sstevel@tonic-gate nodev, /* write */ 76*0Sstevel@tonic-gate max1617_ioctl, /* ioctl */ 77*0Sstevel@tonic-gate nodev, /* devmap */ 78*0Sstevel@tonic-gate nodev, /* mmap */ 79*0Sstevel@tonic-gate nodev, /* segmap */ 80*0Sstevel@tonic-gate nochpoll, /* poll */ 81*0Sstevel@tonic-gate ddi_prop_op, /* cb_prop_op */ 82*0Sstevel@tonic-gate NULL, /* streamtab */ 83*0Sstevel@tonic-gate D_NEW | D_MP | D_HOTPLUG, /* Driver compatibility flag */ 84*0Sstevel@tonic-gate CB_REV, /* rev */ 85*0Sstevel@tonic-gate nodev, /* int (*cb_aread)() */ 86*0Sstevel@tonic-gate nodev /* int (*cb_awrite)() */ 87*0Sstevel@tonic-gate }; 88*0Sstevel@tonic-gate 89*0Sstevel@tonic-gate static struct dev_ops max1617_ops = { 90*0Sstevel@tonic-gate DEVO_REV, 91*0Sstevel@tonic-gate 0, 92*0Sstevel@tonic-gate max1617_info, 93*0Sstevel@tonic-gate nulldev, 94*0Sstevel@tonic-gate nulldev, 95*0Sstevel@tonic-gate max1617_attach, 96*0Sstevel@tonic-gate max1617_detach, 97*0Sstevel@tonic-gate nodev, 98*0Sstevel@tonic-gate &max1617_cbops, 99*0Sstevel@tonic-gate NULL 100*0Sstevel@tonic-gate }; 101*0Sstevel@tonic-gate 102*0Sstevel@tonic-gate static struct modldrv max1617_modldrv = { 103*0Sstevel@tonic-gate &mod_driverops, /* type of module - driver */ 104*0Sstevel@tonic-gate "max1617 device driver v%I%", 105*0Sstevel@tonic-gate &max1617_ops, 106*0Sstevel@tonic-gate }; 107*0Sstevel@tonic-gate 108*0Sstevel@tonic-gate static struct modlinkage max1617_modlinkage = { 109*0Sstevel@tonic-gate MODREV_1, 110*0Sstevel@tonic-gate &max1617_modldrv, 111*0Sstevel@tonic-gate 0 112*0Sstevel@tonic-gate }; 113*0Sstevel@tonic-gate 114*0Sstevel@tonic-gate static int max1617_debug = 0; 115*0Sstevel@tonic-gate 116*0Sstevel@tonic-gate static void *max1617_soft_statep; 117*0Sstevel@tonic-gate 118*0Sstevel@tonic-gate int 119*0Sstevel@tonic-gate _init(void) 120*0Sstevel@tonic-gate { 121*0Sstevel@tonic-gate int error; 122*0Sstevel@tonic-gate 123*0Sstevel@tonic-gate error = mod_install(&max1617_modlinkage); 124*0Sstevel@tonic-gate if (error == 0) { 125*0Sstevel@tonic-gate (void) ddi_soft_state_init(&max1617_soft_statep, 126*0Sstevel@tonic-gate sizeof (struct max1617_unit), 1); 127*0Sstevel@tonic-gate } 128*0Sstevel@tonic-gate 129*0Sstevel@tonic-gate return (error); 130*0Sstevel@tonic-gate } 131*0Sstevel@tonic-gate 132*0Sstevel@tonic-gate int 133*0Sstevel@tonic-gate _fini(void) 134*0Sstevel@tonic-gate { 135*0Sstevel@tonic-gate int error; 136*0Sstevel@tonic-gate 137*0Sstevel@tonic-gate error = mod_remove(&max1617_modlinkage); 138*0Sstevel@tonic-gate if (error == 0) { 139*0Sstevel@tonic-gate ddi_soft_state_fini(&max1617_soft_statep); 140*0Sstevel@tonic-gate } 141*0Sstevel@tonic-gate 142*0Sstevel@tonic-gate return (error); 143*0Sstevel@tonic-gate } 144*0Sstevel@tonic-gate 145*0Sstevel@tonic-gate int 146*0Sstevel@tonic-gate _info(struct modinfo *modinfop) 147*0Sstevel@tonic-gate { 148*0Sstevel@tonic-gate return (mod_info(&max1617_modlinkage, modinfop)); 149*0Sstevel@tonic-gate } 150*0Sstevel@tonic-gate 151*0Sstevel@tonic-gate /* ARGSUSED */ 152*0Sstevel@tonic-gate static int 153*0Sstevel@tonic-gate max1617_info(dev_info_t *dip, ddi_info_cmd_t infocmd, void *arg, void **result) 154*0Sstevel@tonic-gate { 155*0Sstevel@tonic-gate dev_t dev; 156*0Sstevel@tonic-gate int instance; 157*0Sstevel@tonic-gate 158*0Sstevel@tonic-gate if (infocmd == DDI_INFO_DEVT2INSTANCE) { 159*0Sstevel@tonic-gate dev = (dev_t)arg; 160*0Sstevel@tonic-gate instance = MAX1617_MINOR_TO_INST(getminor(dev)); 161*0Sstevel@tonic-gate *result = (void *)(uintptr_t)instance; 162*0Sstevel@tonic-gate return (DDI_SUCCESS); 163*0Sstevel@tonic-gate } 164*0Sstevel@tonic-gate return (DDI_FAILURE); 165*0Sstevel@tonic-gate } 166*0Sstevel@tonic-gate 167*0Sstevel@tonic-gate static int 168*0Sstevel@tonic-gate max1617_do_attach(dev_info_t *dip) 169*0Sstevel@tonic-gate { 170*0Sstevel@tonic-gate struct max1617_unit *unitp; 171*0Sstevel@tonic-gate int instance; 172*0Sstevel@tonic-gate char minor_name[MAXNAMELEN]; 173*0Sstevel@tonic-gate minor_t minor_number; 174*0Sstevel@tonic-gate 175*0Sstevel@tonic-gate instance = ddi_get_instance(dip); 176*0Sstevel@tonic-gate 177*0Sstevel@tonic-gate if (ddi_soft_state_zalloc(max1617_soft_statep, instance) != 0) { 178*0Sstevel@tonic-gate cmn_err(CE_WARN, "%s%d: failed to zalloc softstate", 179*0Sstevel@tonic-gate ddi_get_name(dip), instance); 180*0Sstevel@tonic-gate 181*0Sstevel@tonic-gate return (DDI_FAILURE); 182*0Sstevel@tonic-gate } 183*0Sstevel@tonic-gate 184*0Sstevel@tonic-gate unitp = ddi_get_soft_state(max1617_soft_statep, instance); 185*0Sstevel@tonic-gate 186*0Sstevel@tonic-gate (void) snprintf(unitp->max1617_name, sizeof (unitp->max1617_name), 187*0Sstevel@tonic-gate "%sd", ddi_node_name(dip), instance); 188*0Sstevel@tonic-gate 189*0Sstevel@tonic-gate (void) sprintf(minor_name, "die_temp"); 190*0Sstevel@tonic-gate minor_number = MAX1617_INST_TO_MINOR(instance) | 191*0Sstevel@tonic-gate MAX1617_FCN_TO_MINOR(MAX1617_CPU_TEMP); 192*0Sstevel@tonic-gate 193*0Sstevel@tonic-gate if (ddi_create_minor_node(dip, minor_name, S_IFCHR, 194*0Sstevel@tonic-gate minor_number, MAX1617_NODE_TYPE, NULL) == DDI_FAILURE) { 195*0Sstevel@tonic-gate cmn_err(CE_WARN, "%s ddi_create_minor_node failed for minor " 196*0Sstevel@tonic-gate " name '%s'", unitp->max1617_name, minor_name); 197*0Sstevel@tonic-gate ddi_soft_state_free(max1617_soft_statep, instance); 198*0Sstevel@tonic-gate 199*0Sstevel@tonic-gate return (DDI_FAILURE); 200*0Sstevel@tonic-gate } 201*0Sstevel@tonic-gate 202*0Sstevel@tonic-gate (void) sprintf(minor_name, "amb_temp"); 203*0Sstevel@tonic-gate minor_number = MAX1617_INST_TO_MINOR(instance) | 204*0Sstevel@tonic-gate MAX1617_FCN_TO_MINOR(MAX1617_AMB_TEMP); 205*0Sstevel@tonic-gate 206*0Sstevel@tonic-gate if (ddi_create_minor_node(dip, minor_name, S_IFCHR, 207*0Sstevel@tonic-gate minor_number, MAX1617_NODE_TYPE, NULL) == DDI_FAILURE) { 208*0Sstevel@tonic-gate cmn_err(CE_WARN, "%s ddi_create_minor_node failed for %s", 209*0Sstevel@tonic-gate unitp->max1617_name, minor_name); 210*0Sstevel@tonic-gate ddi_remove_minor_node(dip, NULL); 211*0Sstevel@tonic-gate ddi_soft_state_free(max1617_soft_statep, instance); 212*0Sstevel@tonic-gate 213*0Sstevel@tonic-gate return (DDI_FAILURE); 214*0Sstevel@tonic-gate } 215*0Sstevel@tonic-gate 216*0Sstevel@tonic-gate if (i2c_client_register(dip, &unitp->max1617_hdl) != I2C_SUCCESS) { 217*0Sstevel@tonic-gate ddi_remove_minor_node(dip, NULL); 218*0Sstevel@tonic-gate ddi_soft_state_free(max1617_soft_statep, instance); 219*0Sstevel@tonic-gate 220*0Sstevel@tonic-gate return (DDI_FAILURE); 221*0Sstevel@tonic-gate } 222*0Sstevel@tonic-gate 223*0Sstevel@tonic-gate mutex_init(&unitp->max1617_mutex, NULL, MUTEX_DRIVER, NULL); 224*0Sstevel@tonic-gate cv_init(&unitp->max1617_cv, NULL, CV_DRIVER, NULL); 225*0Sstevel@tonic-gate 226*0Sstevel@tonic-gate return (DDI_SUCCESS); 227*0Sstevel@tonic-gate } 228*0Sstevel@tonic-gate 229*0Sstevel@tonic-gate static int 230*0Sstevel@tonic-gate max1617_do_resume(dev_info_t *dip) 231*0Sstevel@tonic-gate { 232*0Sstevel@tonic-gate int ret = DDI_SUCCESS; 233*0Sstevel@tonic-gate int instance = ddi_get_instance(dip); 234*0Sstevel@tonic-gate i2c_transfer_t *i2ctp; 235*0Sstevel@tonic-gate struct max1617_unit *unitp; 236*0Sstevel@tonic-gate 237*0Sstevel@tonic-gate if ((unitp = ddi_get_soft_state(max1617_soft_statep, instance)) == 238*0Sstevel@tonic-gate NULL) { 239*0Sstevel@tonic-gate return (DDI_FAILURE); 240*0Sstevel@tonic-gate } 241*0Sstevel@tonic-gate 242*0Sstevel@tonic-gate (void) i2c_transfer_alloc(unitp->max1617_hdl, 243*0Sstevel@tonic-gate &i2ctp, 2, 0, I2C_SLEEP); 244*0Sstevel@tonic-gate i2ctp->i2c_version = I2C_XFER_REV; 245*0Sstevel@tonic-gate i2ctp->i2c_flags = I2C_WR; 246*0Sstevel@tonic-gate 247*0Sstevel@tonic-gate 248*0Sstevel@tonic-gate i2ctp->i2c_wbuf[0] = MAX1617_CONFIG_WR_REG; 249*0Sstevel@tonic-gate i2ctp->i2c_wbuf[1] = unitp->max1617_cpr_state.max1617_config; 250*0Sstevel@tonic-gate 251*0Sstevel@tonic-gate if (i2c_transfer(unitp->max1617_hdl, i2ctp) != I2C_SUCCESS) { 252*0Sstevel@tonic-gate ret = DDI_FAILURE; 253*0Sstevel@tonic-gate goto done; 254*0Sstevel@tonic-gate } 255*0Sstevel@tonic-gate 256*0Sstevel@tonic-gate i2ctp->i2c_wbuf[0] = MAX1617_CONV_RATE_WR_REG; 257*0Sstevel@tonic-gate i2ctp->i2c_wbuf[1] = unitp->max1617_cpr_state.max1617_conv_rate; 258*0Sstevel@tonic-gate if (i2c_transfer(unitp->max1617_hdl, i2ctp) != I2C_SUCCESS) { 259*0Sstevel@tonic-gate ret = DDI_FAILURE; 260*0Sstevel@tonic-gate goto done; 261*0Sstevel@tonic-gate } 262*0Sstevel@tonic-gate 263*0Sstevel@tonic-gate i2ctp->i2c_wbuf[0] = MAX1617_LOCALTEMP_HIGH_WR_REG; 264*0Sstevel@tonic-gate i2ctp->i2c_wbuf[1] = unitp->max1617_cpr_state.max1617_lcl_hlimit; 265*0Sstevel@tonic-gate 266*0Sstevel@tonic-gate if (i2c_transfer(unitp->max1617_hdl, i2ctp) != I2C_SUCCESS) { 267*0Sstevel@tonic-gate ret = DDI_FAILURE; 268*0Sstevel@tonic-gate goto done; 269*0Sstevel@tonic-gate } 270*0Sstevel@tonic-gate 271*0Sstevel@tonic-gate i2ctp->i2c_wbuf[0] = MAX1617_REMOTETEMP_HIGH_WR_REG; 272*0Sstevel@tonic-gate i2ctp->i2c_wbuf[1] = unitp->max1617_cpr_state.max1617_remote_hlimit; 273*0Sstevel@tonic-gate 274*0Sstevel@tonic-gate if (i2c_transfer(unitp->max1617_hdl, i2ctp) != I2C_SUCCESS) { 275*0Sstevel@tonic-gate ret = DDI_FAILURE; 276*0Sstevel@tonic-gate goto done; 277*0Sstevel@tonic-gate } 278*0Sstevel@tonic-gate 279*0Sstevel@tonic-gate i2ctp->i2c_wbuf[0] = MAX1617_LOCALTEMP_LOW_REG; 280*0Sstevel@tonic-gate i2ctp->i2c_wbuf[1] = unitp->max1617_cpr_state.max1617_lcl_llimit; 281*0Sstevel@tonic-gate 282*0Sstevel@tonic-gate if (i2c_transfer(unitp->max1617_hdl, i2ctp) != I2C_SUCCESS) { 283*0Sstevel@tonic-gate ret = DDI_FAILURE; 284*0Sstevel@tonic-gate goto done; 285*0Sstevel@tonic-gate } 286*0Sstevel@tonic-gate 287*0Sstevel@tonic-gate i2ctp->i2c_wbuf[0] = MAX1617_REMOTETEMP_LOW_REG; 288*0Sstevel@tonic-gate i2ctp->i2c_wbuf[1] = unitp->max1617_cpr_state.max1617_remote_llimit; 289*0Sstevel@tonic-gate 290*0Sstevel@tonic-gate if (i2c_transfer(unitp->max1617_hdl, i2ctp) != I2C_SUCCESS) { 291*0Sstevel@tonic-gate ret = DDI_FAILURE; 292*0Sstevel@tonic-gate goto done; 293*0Sstevel@tonic-gate } 294*0Sstevel@tonic-gate 295*0Sstevel@tonic-gate done: 296*0Sstevel@tonic-gate mutex_enter(&unitp->max1617_mutex); 297*0Sstevel@tonic-gate unitp->max1617_flags = 0; 298*0Sstevel@tonic-gate cv_signal(&unitp->max1617_cv); 299*0Sstevel@tonic-gate mutex_exit(&unitp->max1617_mutex); 300*0Sstevel@tonic-gate 301*0Sstevel@tonic-gate i2c_transfer_free(unitp->max1617_hdl, i2ctp); 302*0Sstevel@tonic-gate return (ret); 303*0Sstevel@tonic-gate } 304*0Sstevel@tonic-gate 305*0Sstevel@tonic-gate static int 306*0Sstevel@tonic-gate max1617_attach(dev_info_t *dip, ddi_attach_cmd_t cmd) 307*0Sstevel@tonic-gate { 308*0Sstevel@tonic-gate switch (cmd) { 309*0Sstevel@tonic-gate case DDI_ATTACH: 310*0Sstevel@tonic-gate 311*0Sstevel@tonic-gate return (max1617_do_attach(dip)); 312*0Sstevel@tonic-gate case DDI_RESUME: 313*0Sstevel@tonic-gate 314*0Sstevel@tonic-gate return (max1617_do_resume(dip)); 315*0Sstevel@tonic-gate default: 316*0Sstevel@tonic-gate 317*0Sstevel@tonic-gate return (DDI_FAILURE); 318*0Sstevel@tonic-gate } 319*0Sstevel@tonic-gate } 320*0Sstevel@tonic-gate 321*0Sstevel@tonic-gate static int 322*0Sstevel@tonic-gate max1617_do_detach(dev_info_t *dip) 323*0Sstevel@tonic-gate { 324*0Sstevel@tonic-gate struct max1617_unit *unitp; 325*0Sstevel@tonic-gate int instance; 326*0Sstevel@tonic-gate 327*0Sstevel@tonic-gate instance = ddi_get_instance(dip); 328*0Sstevel@tonic-gate 329*0Sstevel@tonic-gate unitp = ddi_get_soft_state(max1617_soft_statep, instance); 330*0Sstevel@tonic-gate 331*0Sstevel@tonic-gate if (unitp == NULL) { 332*0Sstevel@tonic-gate return (DDI_FAILURE); 333*0Sstevel@tonic-gate } 334*0Sstevel@tonic-gate 335*0Sstevel@tonic-gate i2c_client_unregister(unitp->max1617_hdl); 336*0Sstevel@tonic-gate 337*0Sstevel@tonic-gate ddi_remove_minor_node(dip, NULL); 338*0Sstevel@tonic-gate 339*0Sstevel@tonic-gate mutex_destroy(&unitp->max1617_mutex); 340*0Sstevel@tonic-gate cv_destroy(&unitp->max1617_cv); 341*0Sstevel@tonic-gate ddi_soft_state_free(max1617_soft_statep, instance); 342*0Sstevel@tonic-gate 343*0Sstevel@tonic-gate return (DDI_SUCCESS); 344*0Sstevel@tonic-gate } 345*0Sstevel@tonic-gate 346*0Sstevel@tonic-gate static int 347*0Sstevel@tonic-gate max1617_do_suspend(dev_info_t *dip) 348*0Sstevel@tonic-gate { 349*0Sstevel@tonic-gate int ret = DDI_SUCCESS; 350*0Sstevel@tonic-gate int instance = ddi_get_instance(dip); 351*0Sstevel@tonic-gate i2c_transfer_t *i2ctp; 352*0Sstevel@tonic-gate struct max1617_unit *unitp; 353*0Sstevel@tonic-gate 354*0Sstevel@tonic-gate if ((unitp = ddi_get_soft_state(max1617_soft_statep, instance)) == 355*0Sstevel@tonic-gate NULL) { 356*0Sstevel@tonic-gate return (DDI_FAILURE); 357*0Sstevel@tonic-gate } 358*0Sstevel@tonic-gate 359*0Sstevel@tonic-gate (void) i2c_transfer_alloc(unitp->max1617_hdl, 360*0Sstevel@tonic-gate &i2ctp, 1, 1, I2C_SLEEP); 361*0Sstevel@tonic-gate 362*0Sstevel@tonic-gate 363*0Sstevel@tonic-gate /* 364*0Sstevel@tonic-gate * Block new transactions during CPR 365*0Sstevel@tonic-gate */ 366*0Sstevel@tonic-gate mutex_enter(&unitp->max1617_mutex); 367*0Sstevel@tonic-gate while (unitp->max1617_flags == MAX1617_BUSY) { 368*0Sstevel@tonic-gate cv_wait(&unitp->max1617_cv, &unitp->max1617_mutex); 369*0Sstevel@tonic-gate } 370*0Sstevel@tonic-gate unitp->max1617_flags = MAX1617_BUSY; 371*0Sstevel@tonic-gate mutex_exit(&unitp->max1617_mutex); 372*0Sstevel@tonic-gate 373*0Sstevel@tonic-gate i2ctp->i2c_version = I2C_XFER_REV; 374*0Sstevel@tonic-gate i2ctp->i2c_flags = I2C_WR_RD; 375*0Sstevel@tonic-gate i2ctp->i2c_wbuf[0] = MAX1617_CONFIG_REG; 376*0Sstevel@tonic-gate if (i2c_transfer(unitp->max1617_hdl, i2ctp) != I2C_SUCCESS) { 377*0Sstevel@tonic-gate ret = DDI_FAILURE; 378*0Sstevel@tonic-gate goto done; 379*0Sstevel@tonic-gate } 380*0Sstevel@tonic-gate unitp->max1617_cpr_state.max1617_config = i2ctp->i2c_rbuf[0]; 381*0Sstevel@tonic-gate 382*0Sstevel@tonic-gate i2ctp->i2c_wbuf[0] = MAX1617_CONV_RATE_REG; 383*0Sstevel@tonic-gate if (i2c_transfer(unitp->max1617_hdl, i2ctp) != I2C_SUCCESS) { 384*0Sstevel@tonic-gate ret = DDI_FAILURE; 385*0Sstevel@tonic-gate goto done; 386*0Sstevel@tonic-gate } 387*0Sstevel@tonic-gate unitp->max1617_cpr_state.max1617_conv_rate = i2ctp->i2c_rbuf[0]; 388*0Sstevel@tonic-gate 389*0Sstevel@tonic-gate i2ctp->i2c_wbuf[0] = MAX1617_LOCALTEMP_HIGH_REG; 390*0Sstevel@tonic-gate if (i2c_transfer(unitp->max1617_hdl, i2ctp) != I2C_SUCCESS) { 391*0Sstevel@tonic-gate ret = DDI_FAILURE; 392*0Sstevel@tonic-gate goto done; 393*0Sstevel@tonic-gate } 394*0Sstevel@tonic-gate unitp->max1617_cpr_state.max1617_lcl_hlimit = i2ctp->i2c_rbuf[0]; 395*0Sstevel@tonic-gate 396*0Sstevel@tonic-gate i2ctp->i2c_wbuf[0] = MAX1617_REMOTETEMP_HIGH_REG; 397*0Sstevel@tonic-gate if (i2c_transfer(unitp->max1617_hdl, i2ctp) != I2C_SUCCESS) { 398*0Sstevel@tonic-gate ret = DDI_FAILURE; 399*0Sstevel@tonic-gate goto done; 400*0Sstevel@tonic-gate } 401*0Sstevel@tonic-gate unitp->max1617_cpr_state.max1617_remote_hlimit = i2ctp->i2c_rbuf[0]; 402*0Sstevel@tonic-gate 403*0Sstevel@tonic-gate i2ctp->i2c_wbuf[0] = MAX1617_LOCALTEMP_LOW_REG; 404*0Sstevel@tonic-gate if (i2c_transfer(unitp->max1617_hdl, i2ctp) != I2C_SUCCESS) { 405*0Sstevel@tonic-gate ret = DDI_FAILURE; 406*0Sstevel@tonic-gate goto done; 407*0Sstevel@tonic-gate } 408*0Sstevel@tonic-gate unitp->max1617_cpr_state.max1617_lcl_llimit = i2ctp->i2c_rbuf[0]; 409*0Sstevel@tonic-gate 410*0Sstevel@tonic-gate i2ctp->i2c_wbuf[0] = MAX1617_REMOTETEMP_LOW_REG; 411*0Sstevel@tonic-gate if (i2c_transfer(unitp->max1617_hdl, i2ctp) != I2C_SUCCESS) { 412*0Sstevel@tonic-gate ret = DDI_FAILURE; 413*0Sstevel@tonic-gate goto done; 414*0Sstevel@tonic-gate } 415*0Sstevel@tonic-gate unitp->max1617_cpr_state.max1617_remote_llimit = i2ctp->i2c_rbuf[0]; 416*0Sstevel@tonic-gate 417*0Sstevel@tonic-gate done: 418*0Sstevel@tonic-gate i2c_transfer_free(unitp->max1617_hdl, i2ctp); 419*0Sstevel@tonic-gate 420*0Sstevel@tonic-gate if (ret == DDI_FAILURE) { 421*0Sstevel@tonic-gate mutex_enter(&unitp->max1617_mutex); 422*0Sstevel@tonic-gate unitp->max1617_flags = 0; 423*0Sstevel@tonic-gate cv_broadcast(&unitp->max1617_cv); 424*0Sstevel@tonic-gate mutex_exit(&unitp->max1617_mutex); 425*0Sstevel@tonic-gate } 426*0Sstevel@tonic-gate return (ret); 427*0Sstevel@tonic-gate } 428*0Sstevel@tonic-gate 429*0Sstevel@tonic-gate static int 430*0Sstevel@tonic-gate max1617_detach(dev_info_t *dip, ddi_detach_cmd_t cmd) 431*0Sstevel@tonic-gate { 432*0Sstevel@tonic-gate switch (cmd) { 433*0Sstevel@tonic-gate case DDI_DETACH: 434*0Sstevel@tonic-gate 435*0Sstevel@tonic-gate return (max1617_do_detach(dip)); 436*0Sstevel@tonic-gate case DDI_SUSPEND: 437*0Sstevel@tonic-gate 438*0Sstevel@tonic-gate return (max1617_do_suspend(dip)); 439*0Sstevel@tonic-gate 440*0Sstevel@tonic-gate default: 441*0Sstevel@tonic-gate 442*0Sstevel@tonic-gate return (DDI_FAILURE); 443*0Sstevel@tonic-gate } 444*0Sstevel@tonic-gate } 445*0Sstevel@tonic-gate 446*0Sstevel@tonic-gate static int 447*0Sstevel@tonic-gate max1617_open(dev_t *devp, int flags, int otyp, cred_t *credp) 448*0Sstevel@tonic-gate { 449*0Sstevel@tonic-gate _NOTE(ARGUNUSED(credp)) 450*0Sstevel@tonic-gate 451*0Sstevel@tonic-gate struct max1617_unit *unitp; 452*0Sstevel@tonic-gate int instance; 453*0Sstevel@tonic-gate int err = 0; 454*0Sstevel@tonic-gate 455*0Sstevel@tonic-gate instance = MAX1617_MINOR_TO_INST(getminor(*devp)); 456*0Sstevel@tonic-gate 457*0Sstevel@tonic-gate if (instance < 0) { 458*0Sstevel@tonic-gate 459*0Sstevel@tonic-gate return (ENXIO); 460*0Sstevel@tonic-gate } 461*0Sstevel@tonic-gate 462*0Sstevel@tonic-gate unitp = (struct max1617_unit *) 463*0Sstevel@tonic-gate ddi_get_soft_state(max1617_soft_statep, instance); 464*0Sstevel@tonic-gate 465*0Sstevel@tonic-gate if (unitp == NULL) { 466*0Sstevel@tonic-gate 467*0Sstevel@tonic-gate return (ENXIO); 468*0Sstevel@tonic-gate } 469*0Sstevel@tonic-gate 470*0Sstevel@tonic-gate if (otyp != OTYP_CHR) { 471*0Sstevel@tonic-gate 472*0Sstevel@tonic-gate return (EINVAL); 473*0Sstevel@tonic-gate } 474*0Sstevel@tonic-gate 475*0Sstevel@tonic-gate mutex_enter(&unitp->max1617_mutex); 476*0Sstevel@tonic-gate 477*0Sstevel@tonic-gate if (flags & FEXCL) { 478*0Sstevel@tonic-gate if (unitp->max1617_oflag != 0) { 479*0Sstevel@tonic-gate err = EBUSY; 480*0Sstevel@tonic-gate } else { 481*0Sstevel@tonic-gate unitp->max1617_oflag = FEXCL; 482*0Sstevel@tonic-gate } 483*0Sstevel@tonic-gate } else { 484*0Sstevel@tonic-gate if (unitp->max1617_oflag == FEXCL) { 485*0Sstevel@tonic-gate err = EBUSY; 486*0Sstevel@tonic-gate } else { 487*0Sstevel@tonic-gate unitp->max1617_oflag = FOPEN; 488*0Sstevel@tonic-gate } 489*0Sstevel@tonic-gate } 490*0Sstevel@tonic-gate 491*0Sstevel@tonic-gate done: 492*0Sstevel@tonic-gate mutex_exit(&unitp->max1617_mutex); 493*0Sstevel@tonic-gate 494*0Sstevel@tonic-gate return (err); 495*0Sstevel@tonic-gate } 496*0Sstevel@tonic-gate 497*0Sstevel@tonic-gate static int 498*0Sstevel@tonic-gate max1617_close(dev_t dev, int flags, int otyp, cred_t *credp) 499*0Sstevel@tonic-gate { 500*0Sstevel@tonic-gate _NOTE(ARGUNUSED(flags, otyp, credp)) 501*0Sstevel@tonic-gate 502*0Sstevel@tonic-gate struct max1617_unit *unitp; 503*0Sstevel@tonic-gate int instance = MAX1617_MINOR_TO_INST(getminor(dev)); 504*0Sstevel@tonic-gate 505*0Sstevel@tonic-gate if (instance < 0) { 506*0Sstevel@tonic-gate 507*0Sstevel@tonic-gate return (ENXIO); 508*0Sstevel@tonic-gate } 509*0Sstevel@tonic-gate 510*0Sstevel@tonic-gate unitp = (struct max1617_unit *) 511*0Sstevel@tonic-gate ddi_get_soft_state(max1617_soft_statep, instance); 512*0Sstevel@tonic-gate 513*0Sstevel@tonic-gate if (unitp == NULL) { 514*0Sstevel@tonic-gate 515*0Sstevel@tonic-gate return (ENXIO); 516*0Sstevel@tonic-gate } 517*0Sstevel@tonic-gate 518*0Sstevel@tonic-gate mutex_enter(&unitp->max1617_mutex); 519*0Sstevel@tonic-gate 520*0Sstevel@tonic-gate unitp->max1617_oflag = 0; 521*0Sstevel@tonic-gate 522*0Sstevel@tonic-gate mutex_exit(&unitp->max1617_mutex); 523*0Sstevel@tonic-gate 524*0Sstevel@tonic-gate return (DDI_SUCCESS); 525*0Sstevel@tonic-gate } 526*0Sstevel@tonic-gate 527*0Sstevel@tonic-gate int 528*0Sstevel@tonic-gate set_temp_limit(struct max1617_unit *unitp, 529*0Sstevel@tonic-gate uchar_t device_reg, 530*0Sstevel@tonic-gate caddr_t arg, 531*0Sstevel@tonic-gate int mode) 532*0Sstevel@tonic-gate { 533*0Sstevel@tonic-gate int err = 0; 534*0Sstevel@tonic-gate i2c_transfer_t *i2ctp; 535*0Sstevel@tonic-gate int16_t temp; 536*0Sstevel@tonic-gate 537*0Sstevel@tonic-gate (void) i2c_transfer_alloc(unitp->max1617_hdl, &i2ctp, 2, 0, I2C_SLEEP); 538*0Sstevel@tonic-gate i2ctp->i2c_version = I2C_XFER_REV; 539*0Sstevel@tonic-gate i2ctp->i2c_flags = I2C_WR; 540*0Sstevel@tonic-gate i2ctp->i2c_wbuf[0] = device_reg; 541*0Sstevel@tonic-gate 542*0Sstevel@tonic-gate if (ddi_copyin(arg, (caddr_t)&temp, sizeof (int16_t), mode) != 543*0Sstevel@tonic-gate DDI_SUCCESS) { 544*0Sstevel@tonic-gate i2c_transfer_free(unitp->max1617_hdl, i2ctp); 545*0Sstevel@tonic-gate 546*0Sstevel@tonic-gate return (EFAULT); 547*0Sstevel@tonic-gate } 548*0Sstevel@tonic-gate 549*0Sstevel@tonic-gate i2ctp->i2c_wbuf[1] = (int8_t)temp; 550*0Sstevel@tonic-gate 551*0Sstevel@tonic-gate if (i2c_transfer(unitp->max1617_hdl, i2ctp) != I2C_SUCCESS) { 552*0Sstevel@tonic-gate err = EIO; 553*0Sstevel@tonic-gate } 554*0Sstevel@tonic-gate 555*0Sstevel@tonic-gate i2c_transfer_free(unitp->max1617_hdl, i2ctp); 556*0Sstevel@tonic-gate 557*0Sstevel@tonic-gate return (err); 558*0Sstevel@tonic-gate } 559*0Sstevel@tonic-gate 560*0Sstevel@tonic-gate int 561*0Sstevel@tonic-gate get_temp_limit(struct max1617_unit *unitp, 562*0Sstevel@tonic-gate uchar_t reg, 563*0Sstevel@tonic-gate caddr_t arg, 564*0Sstevel@tonic-gate int mode) 565*0Sstevel@tonic-gate { 566*0Sstevel@tonic-gate int err = 0; 567*0Sstevel@tonic-gate i2c_transfer_t *i2ctp; 568*0Sstevel@tonic-gate int16_t temp16; 569*0Sstevel@tonic-gate 570*0Sstevel@tonic-gate (void) i2c_transfer_alloc(unitp->max1617_hdl, &i2ctp, 1, 1, I2C_SLEEP); 571*0Sstevel@tonic-gate i2ctp->i2c_version = I2C_XFER_REV; 572*0Sstevel@tonic-gate i2ctp->i2c_flags = I2C_WR_RD; 573*0Sstevel@tonic-gate i2ctp->i2c_wbuf[0] = reg; 574*0Sstevel@tonic-gate if (i2c_transfer(unitp->max1617_hdl, i2ctp) == I2C_SUCCESS) { 575*0Sstevel@tonic-gate /* 576*0Sstevel@tonic-gate * This double cast is required so that the sign is preserved 577*0Sstevel@tonic-gate * when expanding the 8 bit value to 16. 578*0Sstevel@tonic-gate */ 579*0Sstevel@tonic-gate temp16 = (int16_t)((int8_t)i2ctp->i2c_rbuf[0]); 580*0Sstevel@tonic-gate if (ddi_copyout((caddr_t)&temp16, arg, sizeof (int16_t), 581*0Sstevel@tonic-gate mode) != DDI_SUCCESS) { 582*0Sstevel@tonic-gate err = EFAULT; 583*0Sstevel@tonic-gate } 584*0Sstevel@tonic-gate } else { 585*0Sstevel@tonic-gate err = EIO; 586*0Sstevel@tonic-gate } 587*0Sstevel@tonic-gate i2c_transfer_free(unitp->max1617_hdl, i2ctp); 588*0Sstevel@tonic-gate 589*0Sstevel@tonic-gate return (err); 590*0Sstevel@tonic-gate } 591*0Sstevel@tonic-gate 592*0Sstevel@tonic-gate static int 593*0Sstevel@tonic-gate max1617_ioctl(dev_t dev, int cmd, intptr_t arg, int mode, 594*0Sstevel@tonic-gate cred_t *credp, int *rvalp) 595*0Sstevel@tonic-gate { 596*0Sstevel@tonic-gate _NOTE(ARGUNUSED(credp, rvalp)) 597*0Sstevel@tonic-gate struct max1617_unit *unitp; 598*0Sstevel@tonic-gate int err = 0; 599*0Sstevel@tonic-gate i2c_transfer_t *i2ctp; 600*0Sstevel@tonic-gate int fcn = MAX1617_MINOR_TO_FCN(getminor(dev)); 601*0Sstevel@tonic-gate int instance = MAX1617_MINOR_TO_INST(getminor(dev)); 602*0Sstevel@tonic-gate uchar_t reg; 603*0Sstevel@tonic-gate 604*0Sstevel@tonic-gate unitp = (struct max1617_unit *) 605*0Sstevel@tonic-gate ddi_get_soft_state(max1617_soft_statep, instance); 606*0Sstevel@tonic-gate 607*0Sstevel@tonic-gate if (max1617_debug) { 608*0Sstevel@tonic-gate printf("max1617_ioctl: fcn=%d instance=%d\n", fcn, instance); 609*0Sstevel@tonic-gate } 610*0Sstevel@tonic-gate 611*0Sstevel@tonic-gate /* 612*0Sstevel@tonic-gate * Serialize here, in order to block transacations during CPR. 613*0Sstevel@tonic-gate * This is not a bottle neck since i2c_transfer would serialize 614*0Sstevel@tonic-gate * anyway. 615*0Sstevel@tonic-gate */ 616*0Sstevel@tonic-gate mutex_enter(&unitp->max1617_mutex); 617*0Sstevel@tonic-gate while (unitp->max1617_flags == MAX1617_BUSY) { 618*0Sstevel@tonic-gate if (cv_wait_sig(&unitp->max1617_cv, 619*0Sstevel@tonic-gate &unitp->max1617_mutex) <= 0) { 620*0Sstevel@tonic-gate mutex_exit(&unitp->max1617_mutex); 621*0Sstevel@tonic-gate return (EINTR); 622*0Sstevel@tonic-gate } 623*0Sstevel@tonic-gate } 624*0Sstevel@tonic-gate unitp->max1617_flags = MAX1617_BUSY; 625*0Sstevel@tonic-gate mutex_exit(&unitp->max1617_mutex); 626*0Sstevel@tonic-gate 627*0Sstevel@tonic-gate switch (cmd) { 628*0Sstevel@tonic-gate 629*0Sstevel@tonic-gate /* 630*0Sstevel@tonic-gate * I2C_GET_TEMPERATURE reads a temperature from the device and 631*0Sstevel@tonic-gate * copies a single byte representing the celcius temp 632*0Sstevel@tonic-gate * to user space. 633*0Sstevel@tonic-gate */ 634*0Sstevel@tonic-gate case I2C_GET_TEMPERATURE: 635*0Sstevel@tonic-gate switch (fcn) { 636*0Sstevel@tonic-gate case MAX1617_AMB_TEMP: 637*0Sstevel@tonic-gate reg = MAX1617_LOCAL_TEMP_REG; 638*0Sstevel@tonic-gate break; 639*0Sstevel@tonic-gate case MAX1617_CPU_TEMP: 640*0Sstevel@tonic-gate reg = MAX1617_REMOTE_TEMP_REG; 641*0Sstevel@tonic-gate break; 642*0Sstevel@tonic-gate default: 643*0Sstevel@tonic-gate err = EINVAL; 644*0Sstevel@tonic-gate goto done; 645*0Sstevel@tonic-gate } 646*0Sstevel@tonic-gate 647*0Sstevel@tonic-gate (void) i2c_transfer_alloc(unitp->max1617_hdl, &i2ctp, 648*0Sstevel@tonic-gate 1, 1, I2C_SLEEP); 649*0Sstevel@tonic-gate i2ctp->i2c_version = I2C_XFER_REV; 650*0Sstevel@tonic-gate i2ctp->i2c_flags = I2C_WR_RD; 651*0Sstevel@tonic-gate i2ctp->i2c_wbuf[0] = reg; 652*0Sstevel@tonic-gate 653*0Sstevel@tonic-gate if (i2c_transfer(unitp->max1617_hdl, i2ctp) == I2C_SUCCESS) { 654*0Sstevel@tonic-gate 655*0Sstevel@tonic-gate /* 656*0Sstevel@tonic-gate * This double cast is needed so that the sign bit 657*0Sstevel@tonic-gate * is preserved when casting from unsigned char to 658*0Sstevel@tonic-gate * signed 16 bit value. 659*0Sstevel@tonic-gate */ 660*0Sstevel@tonic-gate int16_t temp = (int16_t)((int8_t)i2ctp->i2c_rbuf[0]); 661*0Sstevel@tonic-gate if (ddi_copyout((caddr_t)&temp, (caddr_t)arg, 662*0Sstevel@tonic-gate sizeof (int16_t), mode) != DDI_SUCCESS) { 663*0Sstevel@tonic-gate err = EFAULT; 664*0Sstevel@tonic-gate } 665*0Sstevel@tonic-gate } else { 666*0Sstevel@tonic-gate err = EIO; 667*0Sstevel@tonic-gate } 668*0Sstevel@tonic-gate i2c_transfer_free(unitp->max1617_hdl, i2ctp); 669*0Sstevel@tonic-gate break; 670*0Sstevel@tonic-gate 671*0Sstevel@tonic-gate case MAX1617_GET_STATUS: 672*0Sstevel@tonic-gate (void) i2c_transfer_alloc(unitp->max1617_hdl, &i2ctp, 673*0Sstevel@tonic-gate 1, 1, I2C_SLEEP); 674*0Sstevel@tonic-gate i2ctp->i2c_version = I2C_XFER_REV; 675*0Sstevel@tonic-gate i2ctp->i2c_flags = I2C_WR_RD; 676*0Sstevel@tonic-gate i2ctp->i2c_wbuf[0] = MAX1617_STATUS_REG; 677*0Sstevel@tonic-gate 678*0Sstevel@tonic-gate if (i2c_transfer(unitp->max1617_hdl, i2ctp) == I2C_SUCCESS) { 679*0Sstevel@tonic-gate if (ddi_copyout((caddr_t)i2ctp->i2c_rbuf, (caddr_t)arg, 680*0Sstevel@tonic-gate sizeof (uint8_t), mode) != DDI_SUCCESS) { 681*0Sstevel@tonic-gate err = EFAULT; 682*0Sstevel@tonic-gate } 683*0Sstevel@tonic-gate } else { 684*0Sstevel@tonic-gate err = EIO; 685*0Sstevel@tonic-gate } 686*0Sstevel@tonic-gate i2c_transfer_free(unitp->max1617_hdl, i2ctp); 687*0Sstevel@tonic-gate break; 688*0Sstevel@tonic-gate case MAX1617_GET_CONFIG: 689*0Sstevel@tonic-gate (void) i2c_transfer_alloc(unitp->max1617_hdl, &i2ctp, 1, 1, 690*0Sstevel@tonic-gate I2C_SLEEP); 691*0Sstevel@tonic-gate i2ctp->i2c_version = I2C_XFER_REV; 692*0Sstevel@tonic-gate i2ctp->i2c_flags = I2C_WR_RD; 693*0Sstevel@tonic-gate i2ctp->i2c_wbuf[0] = MAX1617_CONFIG_REG; 694*0Sstevel@tonic-gate if (i2c_transfer(unitp->max1617_hdl, i2ctp) == I2C_SUCCESS) { 695*0Sstevel@tonic-gate if (ddi_copyout((caddr_t)i2ctp->i2c_rbuf, (caddr_t)arg, 696*0Sstevel@tonic-gate sizeof (uint8_t), mode) != DDI_SUCCESS) { 697*0Sstevel@tonic-gate err = EFAULT; 698*0Sstevel@tonic-gate } 699*0Sstevel@tonic-gate } else { 700*0Sstevel@tonic-gate err = EIO; 701*0Sstevel@tonic-gate } 702*0Sstevel@tonic-gate i2c_transfer_free(unitp->max1617_hdl, i2ctp); 703*0Sstevel@tonic-gate break; 704*0Sstevel@tonic-gate case MAX1617_GET_CONV_RATE: 705*0Sstevel@tonic-gate (void) i2c_transfer_alloc(unitp->max1617_hdl, &i2ctp, 706*0Sstevel@tonic-gate 1, 1, I2C_SLEEP); 707*0Sstevel@tonic-gate i2ctp->i2c_version = I2C_XFER_REV; 708*0Sstevel@tonic-gate i2ctp->i2c_flags = I2C_WR_RD; 709*0Sstevel@tonic-gate i2ctp->i2c_wbuf[0] = MAX1617_CONV_RATE_REG; 710*0Sstevel@tonic-gate if (i2c_transfer(unitp->max1617_hdl, i2ctp) == I2C_SUCCESS) { 711*0Sstevel@tonic-gate if (ddi_copyout((caddr_t)i2ctp->i2c_rbuf, (caddr_t)arg, 712*0Sstevel@tonic-gate sizeof (uint8_t), mode) != DDI_SUCCESS) { 713*0Sstevel@tonic-gate err = EFAULT; 714*0Sstevel@tonic-gate } 715*0Sstevel@tonic-gate } else { 716*0Sstevel@tonic-gate err = EIO; 717*0Sstevel@tonic-gate } 718*0Sstevel@tonic-gate i2c_transfer_free(unitp->max1617_hdl, i2ctp); 719*0Sstevel@tonic-gate break; 720*0Sstevel@tonic-gate 721*0Sstevel@tonic-gate case MAX1617_GET_HIGH_LIMIT: 722*0Sstevel@tonic-gate switch (fcn) { 723*0Sstevel@tonic-gate case MAX1617_AMB_TEMP: 724*0Sstevel@tonic-gate err = get_temp_limit(unitp, MAX1617_LOCALTEMP_HIGH_REG, 725*0Sstevel@tonic-gate (caddr_t)arg, mode); 726*0Sstevel@tonic-gate break; 727*0Sstevel@tonic-gate case MAX1617_CPU_TEMP: 728*0Sstevel@tonic-gate err = get_temp_limit(unitp, MAX1617_REMOTETEMP_HIGH_REG, 729*0Sstevel@tonic-gate (caddr_t)arg, mode); 730*0Sstevel@tonic-gate break; 731*0Sstevel@tonic-gate default: 732*0Sstevel@tonic-gate err = EINVAL; 733*0Sstevel@tonic-gate break; 734*0Sstevel@tonic-gate } 735*0Sstevel@tonic-gate break; 736*0Sstevel@tonic-gate 737*0Sstevel@tonic-gate case MAX1617_GET_LOW_LIMIT: 738*0Sstevel@tonic-gate 739*0Sstevel@tonic-gate switch (fcn) { 740*0Sstevel@tonic-gate case MAX1617_AMB_TEMP: 741*0Sstevel@tonic-gate err = get_temp_limit(unitp, MAX1617_LOCALTEMP_LOW_REG, 742*0Sstevel@tonic-gate (caddr_t)arg, mode); 743*0Sstevel@tonic-gate break; 744*0Sstevel@tonic-gate case MAX1617_CPU_TEMP: 745*0Sstevel@tonic-gate err = get_temp_limit(unitp, MAX1617_REMOTETEMP_LOW_REG, 746*0Sstevel@tonic-gate (caddr_t)arg, mode); 747*0Sstevel@tonic-gate break; 748*0Sstevel@tonic-gate default: 749*0Sstevel@tonic-gate err = EINVAL; 750*0Sstevel@tonic-gate } 751*0Sstevel@tonic-gate break; 752*0Sstevel@tonic-gate 753*0Sstevel@tonic-gate case MAX1617_SET_CONV_RATE: 754*0Sstevel@tonic-gate (void) i2c_transfer_alloc(unitp->max1617_hdl, &i2ctp, 755*0Sstevel@tonic-gate 2, 0, I2C_SLEEP); 756*0Sstevel@tonic-gate i2ctp->i2c_version = I2C_XFER_REV; 757*0Sstevel@tonic-gate i2ctp->i2c_flags = I2C_WR; 758*0Sstevel@tonic-gate i2ctp->i2c_wbuf[0] = MAX1617_CONV_RATE_WR_REG; 759*0Sstevel@tonic-gate if (ddi_copyin((caddr_t)arg, (caddr_t)&i2ctp->i2c_wbuf[1], 760*0Sstevel@tonic-gate sizeof (uint8_t), mode) != DDI_SUCCESS) { 761*0Sstevel@tonic-gate err = EFAULT; 762*0Sstevel@tonic-gate break; 763*0Sstevel@tonic-gate } 764*0Sstevel@tonic-gate if (i2c_transfer(unitp->max1617_hdl, i2ctp) != I2C_SUCCESS) { 765*0Sstevel@tonic-gate err = EIO; 766*0Sstevel@tonic-gate } 767*0Sstevel@tonic-gate i2c_transfer_free(unitp->max1617_hdl, i2ctp); 768*0Sstevel@tonic-gate break; 769*0Sstevel@tonic-gate 770*0Sstevel@tonic-gate case MAX1617_SET_CONFIG: 771*0Sstevel@tonic-gate (void) i2c_transfer_alloc(unitp->max1617_hdl, &i2ctp, 772*0Sstevel@tonic-gate 2, 0, I2C_SLEEP); 773*0Sstevel@tonic-gate i2ctp->i2c_version = I2C_XFER_REV; 774*0Sstevel@tonic-gate i2ctp->i2c_flags = I2C_WR; 775*0Sstevel@tonic-gate i2ctp->i2c_wbuf[0] = MAX1617_CONFIG_WR_REG; 776*0Sstevel@tonic-gate if (ddi_copyin((caddr_t)arg, (caddr_t)&i2ctp->i2c_wbuf[1], 777*0Sstevel@tonic-gate sizeof (uint8_t), mode) != DDI_SUCCESS) { 778*0Sstevel@tonic-gate err = EFAULT; 779*0Sstevel@tonic-gate break; 780*0Sstevel@tonic-gate } 781*0Sstevel@tonic-gate if (i2c_transfer(unitp->max1617_hdl, i2ctp) != I2C_SUCCESS) { 782*0Sstevel@tonic-gate err = EIO; 783*0Sstevel@tonic-gate } 784*0Sstevel@tonic-gate 785*0Sstevel@tonic-gate i2c_transfer_free(unitp->max1617_hdl, i2ctp); 786*0Sstevel@tonic-gate break; 787*0Sstevel@tonic-gate 788*0Sstevel@tonic-gate case MAX1617_SET_HIGH_LIMIT: 789*0Sstevel@tonic-gate switch (fcn) { 790*0Sstevel@tonic-gate case MAX1617_AMB_TEMP: 791*0Sstevel@tonic-gate err = set_temp_limit(unitp, 792*0Sstevel@tonic-gate MAX1617_LOCALTEMP_HIGH_WR_REG, (caddr_t)arg, mode); 793*0Sstevel@tonic-gate break; 794*0Sstevel@tonic-gate case MAX1617_CPU_TEMP: 795*0Sstevel@tonic-gate err = set_temp_limit(unitp, 796*0Sstevel@tonic-gate MAX1617_REMOTETEMP_HIGH_WR_REG, (caddr_t)arg, mode); 797*0Sstevel@tonic-gate break; 798*0Sstevel@tonic-gate default: 799*0Sstevel@tonic-gate err = EINVAL; 800*0Sstevel@tonic-gate } 801*0Sstevel@tonic-gate break; 802*0Sstevel@tonic-gate 803*0Sstevel@tonic-gate case MAX1617_SET_LOW_LIMIT: 804*0Sstevel@tonic-gate switch (fcn) { 805*0Sstevel@tonic-gate case MAX1617_AMB_TEMP: 806*0Sstevel@tonic-gate err = set_temp_limit(unitp, 807*0Sstevel@tonic-gate MAX1617_LOCALTEMP_LOW_WR_REG, (caddr_t)arg, mode); 808*0Sstevel@tonic-gate break; 809*0Sstevel@tonic-gate case MAX1617_CPU_TEMP: 810*0Sstevel@tonic-gate err = set_temp_limit(unitp, 811*0Sstevel@tonic-gate MAX1617_REMOTETEMP_LOW_WR_REG, (caddr_t)arg, mode); 812*0Sstevel@tonic-gate break; 813*0Sstevel@tonic-gate default: 814*0Sstevel@tonic-gate err = EINVAL; 815*0Sstevel@tonic-gate } 816*0Sstevel@tonic-gate break; 817*0Sstevel@tonic-gate 818*0Sstevel@tonic-gate case MAX1617_ONE_SHOT_CMD: 819*0Sstevel@tonic-gate (void) i2c_transfer_alloc(unitp->max1617_hdl, &i2ctp, 1, 0, 820*0Sstevel@tonic-gate I2C_SLEEP); 821*0Sstevel@tonic-gate i2ctp->i2c_version = I2C_XFER_REV; 822*0Sstevel@tonic-gate i2ctp->i2c_flags = I2C_WR; 823*0Sstevel@tonic-gate i2ctp->i2c_wbuf[0] = MAX1617_ONE_SHOT_CMD_REG; 824*0Sstevel@tonic-gate if (i2c_transfer(unitp->max1617_hdl, i2ctp) != I2C_SUCCESS) { 825*0Sstevel@tonic-gate err = EIO; 826*0Sstevel@tonic-gate } 827*0Sstevel@tonic-gate 828*0Sstevel@tonic-gate i2c_transfer_free(unitp->max1617_hdl, i2ctp); 829*0Sstevel@tonic-gate break; 830*0Sstevel@tonic-gate 831*0Sstevel@tonic-gate default: 832*0Sstevel@tonic-gate err = EINVAL; 833*0Sstevel@tonic-gate } 834*0Sstevel@tonic-gate 835*0Sstevel@tonic-gate done: 836*0Sstevel@tonic-gate 837*0Sstevel@tonic-gate mutex_enter(&unitp->max1617_mutex); 838*0Sstevel@tonic-gate unitp->max1617_flags = 0; 839*0Sstevel@tonic-gate cv_signal(&unitp->max1617_cv); 840*0Sstevel@tonic-gate mutex_exit(&unitp->max1617_mutex); 841*0Sstevel@tonic-gate 842*0Sstevel@tonic-gate return (err); 843*0Sstevel@tonic-gate } 844