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 /* 30*0Sstevel@tonic-gate * Driver to map the PIC for the chicago platform. 31*0Sstevel@tonic-gate */ 32*0Sstevel@tonic-gate #include <sys/types.h> 33*0Sstevel@tonic-gate #include <sys/time.h> 34*0Sstevel@tonic-gate #include <sys/errno.h> 35*0Sstevel@tonic-gate #include <sys/cmn_err.h> 36*0Sstevel@tonic-gate #include <sys/param.h> 37*0Sstevel@tonic-gate #include <sys/modctl.h> 38*0Sstevel@tonic-gate #include <sys/conf.h> 39*0Sstevel@tonic-gate #include <sys/open.h> 40*0Sstevel@tonic-gate #include <sys/stat.h> 41*0Sstevel@tonic-gate #include <sys/clock.h> 42*0Sstevel@tonic-gate #include <sys/pic.h> 43*0Sstevel@tonic-gate #include <sys/pic16f747.h> 44*0Sstevel@tonic-gate #include <sys/ddi.h> 45*0Sstevel@tonic-gate #include <sys/sunddi.h> 46*0Sstevel@tonic-gate #include <sys/file.h> 47*0Sstevel@tonic-gate 48*0Sstevel@tonic-gate /* dev_ops and cb_ops entry point function declarations */ 49*0Sstevel@tonic-gate static int pic_attach(dev_info_t *, ddi_attach_cmd_t); 50*0Sstevel@tonic-gate static int pic_detach(dev_info_t *, ddi_detach_cmd_t); 51*0Sstevel@tonic-gate static int pic_getinfo(dev_info_t *, ddi_info_cmd_t, void *, void **); 52*0Sstevel@tonic-gate static int pic_open(dev_t *, int, int, cred_t *); 53*0Sstevel@tonic-gate static int pic_close(dev_t, int, int, cred_t *); 54*0Sstevel@tonic-gate static int pic_ioctl(dev_t, int, intptr_t, int, cred_t *, int *); 55*0Sstevel@tonic-gate 56*0Sstevel@tonic-gate struct cb_ops pic_cb_ops = { 57*0Sstevel@tonic-gate pic_open, 58*0Sstevel@tonic-gate pic_close, 59*0Sstevel@tonic-gate nodev, 60*0Sstevel@tonic-gate nodev, 61*0Sstevel@tonic-gate nodev, /* dump */ 62*0Sstevel@tonic-gate nodev, 63*0Sstevel@tonic-gate nodev, 64*0Sstevel@tonic-gate pic_ioctl, 65*0Sstevel@tonic-gate nodev, /* devmap */ 66*0Sstevel@tonic-gate nodev, 67*0Sstevel@tonic-gate ddi_segmap, /* segmap */ 68*0Sstevel@tonic-gate nochpoll, 69*0Sstevel@tonic-gate ddi_prop_op, 70*0Sstevel@tonic-gate NULL, /* for STREAMS drivers */ 71*0Sstevel@tonic-gate D_NEW | D_MP /* driver compatibility flag */ 72*0Sstevel@tonic-gate }; 73*0Sstevel@tonic-gate 74*0Sstevel@tonic-gate static struct dev_ops pic_dev_ops = { 75*0Sstevel@tonic-gate DEVO_REV, /* driver build version */ 76*0Sstevel@tonic-gate 0, /* device reference count */ 77*0Sstevel@tonic-gate pic_getinfo, 78*0Sstevel@tonic-gate nulldev, 79*0Sstevel@tonic-gate nulldev, /* probe */ 80*0Sstevel@tonic-gate pic_attach, 81*0Sstevel@tonic-gate pic_detach, 82*0Sstevel@tonic-gate nulldev, /* reset */ 83*0Sstevel@tonic-gate &pic_cb_ops, 84*0Sstevel@tonic-gate (struct bus_ops *)NULL, 85*0Sstevel@tonic-gate nulldev /* power */ 86*0Sstevel@tonic-gate }; 87*0Sstevel@tonic-gate 88*0Sstevel@tonic-gate /* 89*0Sstevel@tonic-gate * Fans' and sensors' node names and register offsets 90*0Sstevel@tonic-gate */ 91*0Sstevel@tonic-gate static struct minor_node_info pic_nodes[N_PIC_NODES] = { 92*0Sstevel@tonic-gate {NULL, 0, 0}, /* Reserved */ 93*0Sstevel@tonic-gate {"fan_0", RF_FAN0_PERIOD, 0}, /* System Fan 0 */ 94*0Sstevel@tonic-gate {"fan_1", RF_FAN1_PERIOD, 1}, /* System Fan 1 */ 95*0Sstevel@tonic-gate {"fan_2", RF_FAN2_PERIOD, 2}, /* System Fan 2 */ 96*0Sstevel@tonic-gate {"fan_3", RF_FAN3_PERIOD, 3}, /* System Fan 3 */ 97*0Sstevel@tonic-gate {"fan_4", RF_FAN4_PERIOD, 4}, /* System Fan 4 in P0.1 */ 98*0Sstevel@tonic-gate {"adt7462", RF_LOCAL_TEMP, 0}, /* ADT7462 Local Temperature */ 99*0Sstevel@tonic-gate {"cpu_0", RF_REMOTE1_TEMP, 0}, /* CPU 0 temp */ 100*0Sstevel@tonic-gate {"cpu_1", RF_REMOTE2_TEMP, 0}, /* CPU 1 temp */ 101*0Sstevel@tonic-gate {"mb", RF_REMOTE3_TEMP, 0}, /* Motherboard temp */ 102*0Sstevel@tonic-gate {"lm95221", RF_LM95221_TEMP, 0}, /* LM95221 Local Temperature */ 103*0Sstevel@tonic-gate {"fire", RF_FIRE_TEMP, 0}, /* FIRE Temp */ 104*0Sstevel@tonic-gate {"lsi1064", RF_LSI1064_TEMP, 0}, /* LSI1064 Temp */ 105*0Sstevel@tonic-gate {"front_panel", RF_FRONT_TEMP, 0} /* Front Panel Temperature */ 106*0Sstevel@tonic-gate }; 107*0Sstevel@tonic-gate 108*0Sstevel@tonic-gate /* 109*0Sstevel@tonic-gate * Soft state 110*0Sstevel@tonic-gate */ 111*0Sstevel@tonic-gate struct pic_softc { 112*0Sstevel@tonic-gate dev_info_t *dip; 113*0Sstevel@tonic-gate kmutex_t mutex; 114*0Sstevel@tonic-gate uint8_t *cmd_reg; 115*0Sstevel@tonic-gate ddi_acc_handle_t cmd_handle; 116*0Sstevel@tonic-gate }; 117*0Sstevel@tonic-gate #define getsoftc(inst) ((struct pic_softc *)ddi_get_soft_state(statep, (inst))) 118*0Sstevel@tonic-gate 119*0Sstevel@tonic-gate /* module configuration stuff */ 120*0Sstevel@tonic-gate static void *statep; 121*0Sstevel@tonic-gate extern struct mod_ops mod_driverops; 122*0Sstevel@tonic-gate 123*0Sstevel@tonic-gate static struct modldrv modldrv = { 124*0Sstevel@tonic-gate &mod_driverops, 125*0Sstevel@tonic-gate "pic_client driver (v.%I%) ", 126*0Sstevel@tonic-gate &pic_dev_ops 127*0Sstevel@tonic-gate }; 128*0Sstevel@tonic-gate 129*0Sstevel@tonic-gate static struct modlinkage modlinkage = { 130*0Sstevel@tonic-gate MODREV_1, 131*0Sstevel@tonic-gate &modldrv, 132*0Sstevel@tonic-gate 0 133*0Sstevel@tonic-gate }; 134*0Sstevel@tonic-gate 135*0Sstevel@tonic-gate int 136*0Sstevel@tonic-gate _init(void) 137*0Sstevel@tonic-gate { 138*0Sstevel@tonic-gate int e; 139*0Sstevel@tonic-gate 140*0Sstevel@tonic-gate if (e = ddi_soft_state_init(&statep, sizeof (struct pic_softc), 141*0Sstevel@tonic-gate MAX_PIC_INSTANCES)) { 142*0Sstevel@tonic-gate return (e); 143*0Sstevel@tonic-gate } 144*0Sstevel@tonic-gate 145*0Sstevel@tonic-gate if ((e = mod_install(&modlinkage)) != 0) 146*0Sstevel@tonic-gate ddi_soft_state_fini(&statep); 147*0Sstevel@tonic-gate 148*0Sstevel@tonic-gate return (e); 149*0Sstevel@tonic-gate } 150*0Sstevel@tonic-gate 151*0Sstevel@tonic-gate int 152*0Sstevel@tonic-gate _fini(void) 153*0Sstevel@tonic-gate { 154*0Sstevel@tonic-gate int e; 155*0Sstevel@tonic-gate 156*0Sstevel@tonic-gate if ((e = mod_remove(&modlinkage)) != 0) 157*0Sstevel@tonic-gate return (e); 158*0Sstevel@tonic-gate 159*0Sstevel@tonic-gate ddi_soft_state_fini(&statep); 160*0Sstevel@tonic-gate 161*0Sstevel@tonic-gate return (DDI_SUCCESS); 162*0Sstevel@tonic-gate } 163*0Sstevel@tonic-gate 164*0Sstevel@tonic-gate int 165*0Sstevel@tonic-gate _info(struct modinfo *modinfop) 166*0Sstevel@tonic-gate { 167*0Sstevel@tonic-gate return (mod_info(&modlinkage, modinfop)); 168*0Sstevel@tonic-gate } 169*0Sstevel@tonic-gate 170*0Sstevel@tonic-gate /*ARGSUSED*/ 171*0Sstevel@tonic-gate static int 172*0Sstevel@tonic-gate pic_getinfo(dev_info_t *dip, ddi_info_cmd_t cmd, void *arg, void **result) 173*0Sstevel@tonic-gate { 174*0Sstevel@tonic-gate int inst; 175*0Sstevel@tonic-gate int retval = DDI_SUCCESS; 176*0Sstevel@tonic-gate struct pic_softc *softc; 177*0Sstevel@tonic-gate 178*0Sstevel@tonic-gate inst = PIC_MINOR_TO_INST(getminor((dev_t)arg)); 179*0Sstevel@tonic-gate 180*0Sstevel@tonic-gate switch (cmd) { 181*0Sstevel@tonic-gate case DDI_INFO_DEVT2DEVINFO: 182*0Sstevel@tonic-gate if ((softc = getsoftc(inst)) == NULL) { 183*0Sstevel@tonic-gate *result = (void *)NULL; 184*0Sstevel@tonic-gate retval = DDI_FAILURE; 185*0Sstevel@tonic-gate } else 186*0Sstevel@tonic-gate *result = (void *)softc->dip; 187*0Sstevel@tonic-gate break; 188*0Sstevel@tonic-gate 189*0Sstevel@tonic-gate case DDI_INFO_DEVT2INSTANCE: 190*0Sstevel@tonic-gate *result = (void *)inst; 191*0Sstevel@tonic-gate break; 192*0Sstevel@tonic-gate 193*0Sstevel@tonic-gate default: 194*0Sstevel@tonic-gate retval = DDI_FAILURE; 195*0Sstevel@tonic-gate } 196*0Sstevel@tonic-gate 197*0Sstevel@tonic-gate return (retval); 198*0Sstevel@tonic-gate } 199*0Sstevel@tonic-gate 200*0Sstevel@tonic-gate static int 201*0Sstevel@tonic-gate pic_attach(dev_info_t *dip, ddi_attach_cmd_t cmd) 202*0Sstevel@tonic-gate { 203*0Sstevel@tonic-gate int inst; 204*0Sstevel@tonic-gate int i; 205*0Sstevel@tonic-gate struct pic_softc *softc = NULL; 206*0Sstevel@tonic-gate char *minor_name; 207*0Sstevel@tonic-gate int minor; 208*0Sstevel@tonic-gate char name[80]; 209*0Sstevel@tonic-gate ddi_device_acc_attr_t dev_attr; 210*0Sstevel@tonic-gate int res; 211*0Sstevel@tonic-gate 212*0Sstevel@tonic-gate switch (cmd) { 213*0Sstevel@tonic-gate case DDI_ATTACH: 214*0Sstevel@tonic-gate inst = ddi_get_instance(dip); 215*0Sstevel@tonic-gate if (inst >= MAX_PIC_INSTANCES) { 216*0Sstevel@tonic-gate cmn_err(CE_WARN, "attach failed, too many instances\n"); 217*0Sstevel@tonic-gate return (DDI_FAILURE); 218*0Sstevel@tonic-gate } 219*0Sstevel@tonic-gate 220*0Sstevel@tonic-gate (void) sprintf(name, "env-monitor%d", inst); 221*0Sstevel@tonic-gate minor = PIC_INST_TO_MINOR(inst) | PIC_UNIT_TO_MINOR(0); 222*0Sstevel@tonic-gate if (ddi_create_minor_node(dip, name, S_IFCHR, minor, 223*0Sstevel@tonic-gate DDI_PSEUDO, NULL) == DDI_FAILURE) { 224*0Sstevel@tonic-gate cmn_err(CE_WARN, 225*0Sstevel@tonic-gate "ddi_create_minor_node() failed for inst %d\n", 226*0Sstevel@tonic-gate inst); 227*0Sstevel@tonic-gate return (DDI_FAILURE); 228*0Sstevel@tonic-gate } 229*0Sstevel@tonic-gate 230*0Sstevel@tonic-gate /* Allocate a soft state structure for this instance */ 231*0Sstevel@tonic-gate if (ddi_soft_state_zalloc(statep, inst) != DDI_SUCCESS) { 232*0Sstevel@tonic-gate cmn_err(CE_WARN, " ddi_soft_state_zalloc() failed " 233*0Sstevel@tonic-gate "for inst %d\n", inst); 234*0Sstevel@tonic-gate goto attach_failed; 235*0Sstevel@tonic-gate } 236*0Sstevel@tonic-gate 237*0Sstevel@tonic-gate /* Setup soft state */ 238*0Sstevel@tonic-gate softc = getsoftc(inst); 239*0Sstevel@tonic-gate softc->dip = dip; 240*0Sstevel@tonic-gate mutex_init(&softc->mutex, NULL, MUTEX_DRIVER, NULL); 241*0Sstevel@tonic-gate 242*0Sstevel@tonic-gate /* Setup device attributes */ 243*0Sstevel@tonic-gate dev_attr.devacc_attr_version = DDI_DEVICE_ATTR_V0; 244*0Sstevel@tonic-gate dev_attr.devacc_attr_endian_flags = DDI_STRUCTURE_LE_ACC; 245*0Sstevel@tonic-gate dev_attr.devacc_attr_dataorder = DDI_STRICTORDER_ACC; 246*0Sstevel@tonic-gate 247*0Sstevel@tonic-gate /* 248*0Sstevel@tonic-gate * The RF_COMMAND/RF_STATUS and RF_IND_DATA/RF_IND_ADDR 249*0Sstevel@tonic-gate * register pairs are mapped as one register set starting 250*0Sstevel@tonic-gate * from 0x0 and length 0x42. 251*0Sstevel@tonic-gate */ 252*0Sstevel@tonic-gate res = ddi_regs_map_setup(dip, 0, (caddr_t *)&softc->cmd_reg, 253*0Sstevel@tonic-gate 0, 0x42, &dev_attr, &softc->cmd_handle); 254*0Sstevel@tonic-gate if (res != DDI_SUCCESS) { 255*0Sstevel@tonic-gate cmn_err(CE_WARN, "ddi_regs_map_setup() failed\n"); 256*0Sstevel@tonic-gate goto attach_failed; 257*0Sstevel@tonic-gate } 258*0Sstevel@tonic-gate 259*0Sstevel@tonic-gate /* Set up fans' and sensors' device minor nodes */ 260*0Sstevel@tonic-gate for (i = 1; i < N_PIC_NODES; i++) { 261*0Sstevel@tonic-gate minor_name = pic_nodes[i].minor_name; 262*0Sstevel@tonic-gate minor = PIC_INST_TO_MINOR(inst) | PIC_UNIT_TO_MINOR(i); 263*0Sstevel@tonic-gate if (ddi_create_minor_node(dip, minor_name, S_IFCHR, 264*0Sstevel@tonic-gate minor, PICDEV_NODE_TYPE, NULL) == DDI_FAILURE) { 265*0Sstevel@tonic-gate cmn_err(CE_WARN, 266*0Sstevel@tonic-gate "%s:%d ddi_create_minor_node failed", 267*0Sstevel@tonic-gate ddi_driver_name(dip), inst); 268*0Sstevel@tonic-gate (void) pic_detach(dip, DDI_DETACH); 269*0Sstevel@tonic-gate return (DDI_FAILURE); 270*0Sstevel@tonic-gate } 271*0Sstevel@tonic-gate } 272*0Sstevel@tonic-gate 273*0Sstevel@tonic-gate /* Create main environmental node */ 274*0Sstevel@tonic-gate ddi_report_dev(dip); 275*0Sstevel@tonic-gate 276*0Sstevel@tonic-gate return (DDI_SUCCESS); 277*0Sstevel@tonic-gate 278*0Sstevel@tonic-gate case DDI_RESUME: 279*0Sstevel@tonic-gate return (DDI_SUCCESS); 280*0Sstevel@tonic-gate 281*0Sstevel@tonic-gate default: 282*0Sstevel@tonic-gate return (DDI_FAILURE); 283*0Sstevel@tonic-gate } 284*0Sstevel@tonic-gate 285*0Sstevel@tonic-gate attach_failed: 286*0Sstevel@tonic-gate 287*0Sstevel@tonic-gate /* Free soft state, if allocated. remove minor node if added earlier */ 288*0Sstevel@tonic-gate if (softc) 289*0Sstevel@tonic-gate ddi_soft_state_free(statep, inst); 290*0Sstevel@tonic-gate 291*0Sstevel@tonic-gate ddi_remove_minor_node(dip, NULL); 292*0Sstevel@tonic-gate 293*0Sstevel@tonic-gate return (DDI_FAILURE); 294*0Sstevel@tonic-gate } 295*0Sstevel@tonic-gate 296*0Sstevel@tonic-gate static int 297*0Sstevel@tonic-gate pic_detach(dev_info_t *dip, ddi_detach_cmd_t cmd) 298*0Sstevel@tonic-gate { 299*0Sstevel@tonic-gate int inst; 300*0Sstevel@tonic-gate struct pic_softc *softc; 301*0Sstevel@tonic-gate 302*0Sstevel@tonic-gate switch (cmd) { 303*0Sstevel@tonic-gate case DDI_DETACH: 304*0Sstevel@tonic-gate inst = ddi_get_instance(dip); 305*0Sstevel@tonic-gate if ((softc = getsoftc(inst)) == NULL) 306*0Sstevel@tonic-gate return (ENXIO); 307*0Sstevel@tonic-gate 308*0Sstevel@tonic-gate (void) ddi_regs_map_free(&softc->cmd_handle); 309*0Sstevel@tonic-gate /* Free the soft state and remove minor node added earlier */ 310*0Sstevel@tonic-gate mutex_destroy(&softc->mutex); 311*0Sstevel@tonic-gate ddi_soft_state_free(statep, inst); 312*0Sstevel@tonic-gate ddi_remove_minor_node(dip, NULL); 313*0Sstevel@tonic-gate return (DDI_SUCCESS); 314*0Sstevel@tonic-gate 315*0Sstevel@tonic-gate case DDI_SUSPEND: 316*0Sstevel@tonic-gate return (DDI_SUCCESS); 317*0Sstevel@tonic-gate 318*0Sstevel@tonic-gate default: 319*0Sstevel@tonic-gate return (DDI_FAILURE); 320*0Sstevel@tonic-gate } 321*0Sstevel@tonic-gate } 322*0Sstevel@tonic-gate 323*0Sstevel@tonic-gate /*ARGSUSED*/ 324*0Sstevel@tonic-gate static int 325*0Sstevel@tonic-gate pic_open(dev_t *devp, int flag, int otyp, cred_t *credp) 326*0Sstevel@tonic-gate { 327*0Sstevel@tonic-gate int inst = PIC_MINOR_TO_INST(getminor(*devp)); 328*0Sstevel@tonic-gate 329*0Sstevel@tonic-gate return (getsoftc(inst) == NULL ? ENXIO : 0); 330*0Sstevel@tonic-gate } 331*0Sstevel@tonic-gate 332*0Sstevel@tonic-gate /*ARGSUSED*/ 333*0Sstevel@tonic-gate static int 334*0Sstevel@tonic-gate pic_close(dev_t dev, int flag, int otyp, cred_t *credp) 335*0Sstevel@tonic-gate { 336*0Sstevel@tonic-gate int inst = PIC_MINOR_TO_INST(getminor(dev)); 337*0Sstevel@tonic-gate 338*0Sstevel@tonic-gate return (getsoftc(inst) == NULL ? ENXIO : 0); 339*0Sstevel@tonic-gate } 340*0Sstevel@tonic-gate 341*0Sstevel@tonic-gate /*ARGSUSED*/ 342*0Sstevel@tonic-gate static int 343*0Sstevel@tonic-gate pic_ioctl(dev_t dev, int cmd, intptr_t arg, int mode, cred_t *credp, int *rvalp) 344*0Sstevel@tonic-gate { 345*0Sstevel@tonic-gate int inst; 346*0Sstevel@tonic-gate int node; 347*0Sstevel@tonic-gate int ntries; 348*0Sstevel@tonic-gate struct pic_softc *softc; 349*0Sstevel@tonic-gate uint8_t in_command; 350*0Sstevel@tonic-gate uint8_t status; 351*0Sstevel@tonic-gate int16_t tempr; 352*0Sstevel@tonic-gate 353*0Sstevel@tonic-gate inst = PIC_MINOR_TO_INST(getminor(dev)); 354*0Sstevel@tonic-gate if ((softc = getsoftc(inst)) == NULL) 355*0Sstevel@tonic-gate return (ENXIO); 356*0Sstevel@tonic-gate 357*0Sstevel@tonic-gate mutex_enter(&softc->mutex); 358*0Sstevel@tonic-gate 359*0Sstevel@tonic-gate if (ddi_copyin((caddr_t)arg, &in_command, sizeof (in_command), 360*0Sstevel@tonic-gate mode) != DDI_SUCCESS) { 361*0Sstevel@tonic-gate mutex_exit(&softc->mutex); 362*0Sstevel@tonic-gate return (EFAULT); 363*0Sstevel@tonic-gate } 364*0Sstevel@tonic-gate 365*0Sstevel@tonic-gate node = PIC_MINOR_TO_UNIT(getminor(dev)); 366*0Sstevel@tonic-gate if ((node >= N_PIC_NODES) || (node < 1)) { 367*0Sstevel@tonic-gate mutex_exit(&softc->mutex); 368*0Sstevel@tonic-gate return (ENXIO); 369*0Sstevel@tonic-gate } 370*0Sstevel@tonic-gate 371*0Sstevel@tonic-gate /* Check status register */ 372*0Sstevel@tonic-gate ntries = 0; 373*0Sstevel@tonic-gate do { 374*0Sstevel@tonic-gate if (++ntries > MAX_RETRIES) { 375*0Sstevel@tonic-gate mutex_exit(&softc->mutex); 376*0Sstevel@tonic-gate return (EBUSY); 377*0Sstevel@tonic-gate } 378*0Sstevel@tonic-gate 379*0Sstevel@tonic-gate status = ddi_get8(softc->cmd_handle, 380*0Sstevel@tonic-gate (uint8_t *)softc->cmd_reg + RF_STATUS); 381*0Sstevel@tonic-gate /* 382*0Sstevel@tonic-gate * We need 5us delay between 2 register reads 383*0Sstevel@tonic-gate * this give enough time for the pic to be updated. 384*0Sstevel@tonic-gate * we are waiting 10us to give us some breathing room. 385*0Sstevel@tonic-gate */ 386*0Sstevel@tonic-gate drv_usecwait(10); 387*0Sstevel@tonic-gate 388*0Sstevel@tonic-gate /* 389*0Sstevel@tonic-gate * If we're asked to return status, we simply 390*0Sstevel@tonic-gate * return it as is. 391*0Sstevel@tonic-gate */ 392*0Sstevel@tonic-gate if (cmd == PIC_GET_STATUS) 393*0Sstevel@tonic-gate break; 394*0Sstevel@tonic-gate 395*0Sstevel@tonic-gate } while ((status & ST_ENV_BUSY) || (status & ST_STALE_ADT_DATA) || 396*0Sstevel@tonic-gate (status & ST_STALE_LM_DATA)); 397*0Sstevel@tonic-gate 398*0Sstevel@tonic-gate switch (cmd) { 399*0Sstevel@tonic-gate case PIC_GET_TEMPERATURE: 400*0Sstevel@tonic-gate 401*0Sstevel@tonic-gate /* select the temp sensor */ 402*0Sstevel@tonic-gate (void) ddi_put8(softc->cmd_handle, (uint8_t *)softc->cmd_reg + 403*0Sstevel@tonic-gate RF_IND_ADDR, pic_nodes[node].reg_offset); 404*0Sstevel@tonic-gate 405*0Sstevel@tonic-gate /* retrieve temperature data */ 406*0Sstevel@tonic-gate tempr = (int16_t)ddi_get8(softc->cmd_handle, 407*0Sstevel@tonic-gate (uint8_t *)softc->cmd_reg + RF_IND_DATA); 408*0Sstevel@tonic-gate 409*0Sstevel@tonic-gate drv_usecwait(10); 410*0Sstevel@tonic-gate 411*0Sstevel@tonic-gate if (tempr == 0xff) { 412*0Sstevel@tonic-gate mutex_exit(&softc->mutex); 413*0Sstevel@tonic-gate return (EIO); 414*0Sstevel@tonic-gate } 415*0Sstevel@tonic-gate 416*0Sstevel@tonic-gate /* 417*0Sstevel@tonic-gate * The temp is passed in as a uint8 value, we need to convert 418*0Sstevel@tonic-gate * it to a signed 16 bit value to be able to handle the range 419*0Sstevel@tonic-gate * of -64 to 190 degrees. 420*0Sstevel@tonic-gate */ 421*0Sstevel@tonic-gate tempr -= 64; 422*0Sstevel@tonic-gate 423*0Sstevel@tonic-gate /* In this case we need to return a signed int value */ 424*0Sstevel@tonic-gate mutex_exit(&softc->mutex); 425*0Sstevel@tonic-gate (void) ddi_copyout(&tempr, (caddr_t)arg, sizeof (tempr), mode); 426*0Sstevel@tonic-gate 427*0Sstevel@tonic-gate return (0); 428*0Sstevel@tonic-gate 429*0Sstevel@tonic-gate case PIC_GET_FAN_SPEED: 430*0Sstevel@tonic-gate /* select fan */ 431*0Sstevel@tonic-gate (void) ddi_put8(softc->cmd_handle, (uint8_t *)softc->cmd_reg + 432*0Sstevel@tonic-gate RF_IND_ADDR, pic_nodes[node].reg_offset); 433*0Sstevel@tonic-gate 434*0Sstevel@tonic-gate /* retrieve fan data */ 435*0Sstevel@tonic-gate in_command = ddi_get8(softc->cmd_handle, 436*0Sstevel@tonic-gate (uint8_t *)softc->cmd_reg + RF_IND_DATA); 437*0Sstevel@tonic-gate 438*0Sstevel@tonic-gate drv_usecwait(10); 439*0Sstevel@tonic-gate break; 440*0Sstevel@tonic-gate 441*0Sstevel@tonic-gate case PIC_SET_FAN_SPEED: 442*0Sstevel@tonic-gate /* select fan */ 443*0Sstevel@tonic-gate (void) ddi_put8(softc->cmd_handle, (uint8_t *)softc->cmd_reg + 444*0Sstevel@tonic-gate RF_IND_ADDR, pic_nodes[node].reg_offset); 445*0Sstevel@tonic-gate 446*0Sstevel@tonic-gate /* send the fan data */ 447*0Sstevel@tonic-gate (void) ddi_put8(softc->cmd_handle, 448*0Sstevel@tonic-gate (uint8_t *)softc->cmd_reg + RF_IND_DATA, in_command); 449*0Sstevel@tonic-gate 450*0Sstevel@tonic-gate drv_usecwait(10); 451*0Sstevel@tonic-gate 452*0Sstevel@tonic-gate break; 453*0Sstevel@tonic-gate 454*0Sstevel@tonic-gate case PIC_GET_STATUS: 455*0Sstevel@tonic-gate in_command = status; 456*0Sstevel@tonic-gate break; 457*0Sstevel@tonic-gate 458*0Sstevel@tonic-gate case PIC_GET_FAN_STATUS: 459*0Sstevel@tonic-gate /* read ffault register */ 460*0Sstevel@tonic-gate (void) ddi_put8(softc->cmd_handle, (uint8_t *)softc->cmd_reg + 461*0Sstevel@tonic-gate RF_IND_ADDR, RF_FAN_STATUS); 462*0Sstevel@tonic-gate 463*0Sstevel@tonic-gate /* retrieve fan failure status */ 464*0Sstevel@tonic-gate in_command = ddi_get8(softc->cmd_handle, 465*0Sstevel@tonic-gate (uint8_t *)softc->cmd_reg + RF_IND_DATA); 466*0Sstevel@tonic-gate in_command = (in_command >> pic_nodes[node].ff_shift) & 0x1; 467*0Sstevel@tonic-gate 468*0Sstevel@tonic-gate drv_usecwait(10); 469*0Sstevel@tonic-gate 470*0Sstevel@tonic-gate break; 471*0Sstevel@tonic-gate 472*0Sstevel@tonic-gate case PIC_SET_ESTAR_MODE: 473*0Sstevel@tonic-gate (void) ddi_put8(softc->cmd_handle, 474*0Sstevel@tonic-gate (uint8_t *)softc->cmd_reg + RF_COMMAND, CMD_TO_ESTAR); 475*0Sstevel@tonic-gate break; 476*0Sstevel@tonic-gate 477*0Sstevel@tonic-gate default: 478*0Sstevel@tonic-gate mutex_exit(&softc->mutex); 479*0Sstevel@tonic-gate cmn_err(CE_NOTE, "cmd %d isnt valid", cmd); 480*0Sstevel@tonic-gate return (EINVAL); 481*0Sstevel@tonic-gate } 482*0Sstevel@tonic-gate 483*0Sstevel@tonic-gate mutex_exit(&softc->mutex); 484*0Sstevel@tonic-gate (void) ddi_copyout(&in_command, (caddr_t)arg, 1, mode); 485*0Sstevel@tonic-gate 486*0Sstevel@tonic-gate /* 487*0Sstevel@tonic-gate * 0xFF indicates an error when trying to read from the device, 488*0Sstevel@tonic-gate * ie. it can be busy, or being updated. 489*0Sstevel@tonic-gate * This will force picl to retry the read at another time. 490*0Sstevel@tonic-gate */ 491*0Sstevel@tonic-gate if (in_command == 0xff) { 492*0Sstevel@tonic-gate return (EIO); 493*0Sstevel@tonic-gate } else { 494*0Sstevel@tonic-gate return (0); 495*0Sstevel@tonic-gate } 496*0Sstevel@tonic-gate } 497