1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * pc87360.c - Part of lm_sensors, Linux kernel modules 4 * for hardware monitoring 5 * Copyright (C) 2004, 2007 Jean Delvare <jdelvare@suse.de> 6 * 7 * Copied from smsc47m1.c: 8 * Copyright (C) 2002 Mark D. Studebaker <mdsxyz123@yahoo.com> 9 * 10 * Supports the following chips: 11 * 12 * Chip #vin #fan #pwm #temp devid 13 * PC87360 - 2 2 - 0xE1 14 * PC87363 - 2 2 - 0xE8 15 * PC87364 - 3 3 - 0xE4 16 * PC87365 11 3 3 2 0xE5 17 * PC87366 11 3 3 3-4 0xE9 18 * 19 * This driver assumes that no more than one chip is present, and one of 20 * the standard Super-I/O addresses is used (0x2E/0x2F or 0x4E/0x4F). 21 */ 22 23 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 24 25 #include <linux/module.h> 26 #include <linux/init.h> 27 #include <linux/slab.h> 28 #include <linux/jiffies.h> 29 #include <linux/platform_device.h> 30 #include <linux/hwmon.h> 31 #include <linux/hwmon-sysfs.h> 32 #include <linux/hwmon-vid.h> 33 #include <linux/err.h> 34 #include <linux/mutex.h> 35 #include <linux/acpi.h> 36 #include <linux/io.h> 37 38 static u8 devid; 39 static struct platform_device *pdev; 40 static unsigned short extra_isa[3]; 41 static u8 confreg[4]; 42 43 static int init = 1; 44 module_param(init, int, 0); 45 MODULE_PARM_DESC(init, 46 "Chip initialization level:\n" 47 " 0: None\n" 48 "*1: Forcibly enable internal voltage and temperature channels, except in9\n" 49 " 2: Forcibly enable all voltage and temperature channels, except in9\n" 50 " 3: Forcibly enable all voltage and temperature channels, including in9"); 51 52 static unsigned short force_id; 53 module_param(force_id, ushort, 0); 54 MODULE_PARM_DESC(force_id, "Override the detected device ID"); 55 56 /* 57 * Super-I/O registers and operations 58 */ 59 60 #define DEV 0x07 /* Register: Logical device select */ 61 #define DEVID 0x20 /* Register: Device ID */ 62 #define ACT 0x30 /* Register: Device activation */ 63 #define BASE 0x60 /* Register: Base address */ 64 65 #define FSCM 0x09 /* Logical device: fans */ 66 #define VLM 0x0d /* Logical device: voltages */ 67 #define TMS 0x0e /* Logical device: temperatures */ 68 #define LDNI_MAX 3 69 static const u8 logdev[LDNI_MAX] = { FSCM, VLM, TMS }; 70 71 #define LD_FAN 0 72 #define LD_IN 1 73 #define LD_TEMP 2 74 75 static inline void superio_outb(int sioaddr, int reg, int val) 76 { 77 outb(reg, sioaddr); 78 outb(val, sioaddr + 1); 79 } 80 81 static inline int superio_inb(int sioaddr, int reg) 82 { 83 outb(reg, sioaddr); 84 return inb(sioaddr + 1); 85 } 86 87 static inline void superio_exit(int sioaddr) 88 { 89 outb(0x02, sioaddr); 90 outb(0x02, sioaddr + 1); 91 } 92 93 /* 94 * Logical devices 95 */ 96 97 #define PC87360_EXTENT 0x10 98 #define PC87365_REG_BANK 0x09 99 #define NO_BANK 0xff 100 101 /* 102 * Fan registers and conversions 103 */ 104 105 /* nr has to be 0 or 1 (PC87360/87363) or 2 (PC87364/87365/87366) */ 106 #define PC87360_REG_PRESCALE(nr) (0x00 + 2 * (nr)) 107 #define PC87360_REG_PWM(nr) (0x01 + 2 * (nr)) 108 #define PC87360_REG_FAN_MIN(nr) (0x06 + 3 * (nr)) 109 #define PC87360_REG_FAN(nr) (0x07 + 3 * (nr)) 110 #define PC87360_REG_FAN_STATUS(nr) (0x08 + 3 * (nr)) 111 112 #define FAN_FROM_REG(val, div) ((val) == 0 ? 0 : \ 113 480000 / ((val) * (div))) 114 #define FAN_TO_REG(val, div) ((val) <= 100 ? 0 : \ 115 480000 / ((val) * (div))) 116 #define FAN_DIV_FROM_REG(val) (1 << (((val) >> 5) & 0x03)) 117 #define FAN_STATUS_FROM_REG(val) ((val) & 0x07) 118 119 #define FAN_CONFIG_MONITOR(val, nr) (((val) >> (2 + (nr) * 3)) & 1) 120 #define FAN_CONFIG_CONTROL(val, nr) (((val) >> (3 + (nr) * 3)) & 1) 121 #define FAN_CONFIG_INVERT(val, nr) (((val) >> (4 + (nr) * 3)) & 1) 122 123 #define PWM_FROM_REG(val, inv) ((inv) ? 255 - (val) : (val)) 124 static inline u8 PWM_TO_REG(int val, int inv) 125 { 126 if (inv) 127 val = 255 - val; 128 if (val < 0) 129 return 0; 130 if (val > 255) 131 return 255; 132 return val; 133 } 134 135 /* 136 * Voltage registers and conversions 137 */ 138 139 #define PC87365_REG_IN_CONVRATE 0x07 140 #define PC87365_REG_IN_CONFIG 0x08 141 #define PC87365_REG_IN 0x0B 142 #define PC87365_REG_IN_MIN 0x0D 143 #define PC87365_REG_IN_MAX 0x0C 144 #define PC87365_REG_IN_STATUS 0x0A 145 #define PC87365_REG_IN_ALARMS1 0x00 146 #define PC87365_REG_IN_ALARMS2 0x01 147 #define PC87365_REG_VID 0x06 148 149 #define IN_FROM_REG(val, ref) (((val) * (ref) + 128) / 256) 150 #define IN_TO_REG(val, ref) ((val) < 0 ? 0 : \ 151 (val) * 256 >= (ref) * 255 ? 255 : \ 152 ((val) * 256 + (ref) / 2) / (ref)) 153 154 /* 155 * Temperature registers and conversions 156 */ 157 158 #define PC87365_REG_TEMP_CONFIG 0x08 159 #define PC87365_REG_TEMP 0x0B 160 #define PC87365_REG_TEMP_MIN 0x0D 161 #define PC87365_REG_TEMP_MAX 0x0C 162 #define PC87365_REG_TEMP_CRIT 0x0E 163 #define PC87365_REG_TEMP_STATUS 0x0A 164 #define PC87365_REG_TEMP_ALARMS 0x00 165 166 #define TEMP_FROM_REG(val) ((val) * 1000) 167 #define TEMP_TO_REG(val) ((val) < -55000 ? -55 : \ 168 (val) > 127000 ? 127 : \ 169 (val) < 0 ? ((val) - 500) / 1000 : \ 170 ((val) + 500) / 1000) 171 172 /* 173 * Device data 174 */ 175 176 struct pc87360_data { 177 const char *name; 178 struct device *hwmon_dev; 179 struct mutex lock; 180 struct mutex update_lock; 181 char valid; /* !=0 if following fields are valid */ 182 unsigned long last_updated; /* In jiffies */ 183 184 int address[3]; 185 186 u8 fannr, innr, tempnr; 187 188 u8 fan[3]; /* Register value */ 189 u8 fan_min[3]; /* Register value */ 190 u8 fan_status[3]; /* Register value */ 191 u8 pwm[3]; /* Register value */ 192 u16 fan_conf; /* Configuration register values, combined */ 193 194 u16 in_vref; /* 1 mV/bit */ 195 u8 in[14]; /* Register value */ 196 u8 in_min[14]; /* Register value */ 197 u8 in_max[14]; /* Register value */ 198 u8 in_crit[3]; /* Register value */ 199 u8 in_status[14]; /* Register value */ 200 u16 in_alarms; /* Register values, combined, masked */ 201 u8 vid_conf; /* Configuration register value */ 202 u8 vrm; 203 u8 vid; /* Register value */ 204 205 s8 temp[3]; /* Register value */ 206 s8 temp_min[3]; /* Register value */ 207 s8 temp_max[3]; /* Register value */ 208 s8 temp_crit[3]; /* Register value */ 209 u8 temp_status[3]; /* Register value */ 210 u8 temp_alarms; /* Register value, masked */ 211 }; 212 213 /* 214 * Functions declaration 215 */ 216 217 static int pc87360_probe(struct platform_device *pdev); 218 static int pc87360_remove(struct platform_device *pdev); 219 220 static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank, 221 u8 reg); 222 static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank, 223 u8 reg, u8 value); 224 static void pc87360_init_device(struct platform_device *pdev, 225 int use_thermistors); 226 static struct pc87360_data *pc87360_update_device(struct device *dev); 227 228 /* 229 * Driver data 230 */ 231 232 static struct platform_driver pc87360_driver = { 233 .driver = { 234 .name = "pc87360", 235 }, 236 .probe = pc87360_probe, 237 .remove = pc87360_remove, 238 }; 239 240 /* 241 * Sysfs stuff 242 */ 243 244 static ssize_t fan_input_show(struct device *dev, 245 struct device_attribute *devattr, char *buf) 246 { 247 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 248 struct pc87360_data *data = pc87360_update_device(dev); 249 return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan[attr->index], 250 FAN_DIV_FROM_REG(data->fan_status[attr->index]))); 251 } 252 static ssize_t fan_min_show(struct device *dev, 253 struct device_attribute *devattr, char *buf) 254 { 255 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 256 struct pc87360_data *data = pc87360_update_device(dev); 257 return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan_min[attr->index], 258 FAN_DIV_FROM_REG(data->fan_status[attr->index]))); 259 } 260 static ssize_t fan_div_show(struct device *dev, 261 struct device_attribute *devattr, char *buf) 262 { 263 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 264 struct pc87360_data *data = pc87360_update_device(dev); 265 return sprintf(buf, "%u\n", 266 FAN_DIV_FROM_REG(data->fan_status[attr->index])); 267 } 268 static ssize_t fan_status_show(struct device *dev, 269 struct device_attribute *devattr, char *buf) 270 { 271 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 272 struct pc87360_data *data = pc87360_update_device(dev); 273 return sprintf(buf, "%u\n", 274 FAN_STATUS_FROM_REG(data->fan_status[attr->index])); 275 } 276 static ssize_t fan_min_store(struct device *dev, 277 struct device_attribute *devattr, 278 const char *buf, size_t count) 279 { 280 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 281 struct pc87360_data *data = dev_get_drvdata(dev); 282 long fan_min; 283 int err; 284 285 err = kstrtol(buf, 10, &fan_min); 286 if (err) 287 return err; 288 289 mutex_lock(&data->update_lock); 290 fan_min = FAN_TO_REG(fan_min, 291 FAN_DIV_FROM_REG(data->fan_status[attr->index])); 292 293 /* If it wouldn't fit, change clock divisor */ 294 while (fan_min > 255 295 && (data->fan_status[attr->index] & 0x60) != 0x60) { 296 fan_min >>= 1; 297 data->fan[attr->index] >>= 1; 298 data->fan_status[attr->index] += 0x20; 299 } 300 data->fan_min[attr->index] = fan_min > 255 ? 255 : fan_min; 301 pc87360_write_value(data, LD_FAN, NO_BANK, 302 PC87360_REG_FAN_MIN(attr->index), 303 data->fan_min[attr->index]); 304 305 /* Write new divider, preserve alarm bits */ 306 pc87360_write_value(data, LD_FAN, NO_BANK, 307 PC87360_REG_FAN_STATUS(attr->index), 308 data->fan_status[attr->index] & 0xF9); 309 mutex_unlock(&data->update_lock); 310 311 return count; 312 } 313 314 static struct sensor_device_attribute fan_input[] = { 315 SENSOR_ATTR_RO(fan1_input, fan_input, 0), 316 SENSOR_ATTR_RO(fan2_input, fan_input, 1), 317 SENSOR_ATTR_RO(fan3_input, fan_input, 2), 318 }; 319 static struct sensor_device_attribute fan_status[] = { 320 SENSOR_ATTR_RO(fan1_status, fan_status, 0), 321 SENSOR_ATTR_RO(fan2_status, fan_status, 1), 322 SENSOR_ATTR_RO(fan3_status, fan_status, 2), 323 }; 324 static struct sensor_device_attribute fan_div[] = { 325 SENSOR_ATTR_RO(fan1_div, fan_div, 0), 326 SENSOR_ATTR_RO(fan2_div, fan_div, 1), 327 SENSOR_ATTR_RO(fan3_div, fan_div, 2), 328 }; 329 static struct sensor_device_attribute fan_min[] = { 330 SENSOR_ATTR_RW(fan1_min, fan_min, 0), 331 SENSOR_ATTR_RW(fan2_min, fan_min, 1), 332 SENSOR_ATTR_RW(fan3_min, fan_min, 2), 333 }; 334 335 #define FAN_UNIT_ATTRS(X) \ 336 { &fan_input[X].dev_attr.attr, \ 337 &fan_status[X].dev_attr.attr, \ 338 &fan_div[X].dev_attr.attr, \ 339 &fan_min[X].dev_attr.attr, \ 340 NULL \ 341 } 342 343 static ssize_t pwm_show(struct device *dev, struct device_attribute *devattr, 344 char *buf) 345 { 346 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 347 struct pc87360_data *data = pc87360_update_device(dev); 348 return sprintf(buf, "%u\n", 349 PWM_FROM_REG(data->pwm[attr->index], 350 FAN_CONFIG_INVERT(data->fan_conf, 351 attr->index))); 352 } 353 static ssize_t pwm_store(struct device *dev, struct device_attribute *devattr, 354 const char *buf, size_t count) 355 { 356 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 357 struct pc87360_data *data = dev_get_drvdata(dev); 358 long val; 359 int err; 360 361 err = kstrtol(buf, 10, &val); 362 if (err) 363 return err; 364 365 mutex_lock(&data->update_lock); 366 data->pwm[attr->index] = PWM_TO_REG(val, 367 FAN_CONFIG_INVERT(data->fan_conf, attr->index)); 368 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_PWM(attr->index), 369 data->pwm[attr->index]); 370 mutex_unlock(&data->update_lock); 371 return count; 372 } 373 374 static struct sensor_device_attribute pwm[] = { 375 SENSOR_ATTR_RW(pwm1, pwm, 0), 376 SENSOR_ATTR_RW(pwm2, pwm, 1), 377 SENSOR_ATTR_RW(pwm3, pwm, 2), 378 }; 379 380 static struct attribute *pc8736x_fan_attr[][5] = { 381 FAN_UNIT_ATTRS(0), 382 FAN_UNIT_ATTRS(1), 383 FAN_UNIT_ATTRS(2) 384 }; 385 386 static const struct attribute_group pc8736x_fan_attr_group[] = { 387 { .attrs = pc8736x_fan_attr[0], }, 388 { .attrs = pc8736x_fan_attr[1], }, 389 { .attrs = pc8736x_fan_attr[2], }, 390 }; 391 392 static ssize_t in_input_show(struct device *dev, 393 struct device_attribute *devattr, char *buf) 394 { 395 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 396 struct pc87360_data *data = pc87360_update_device(dev); 397 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index], 398 data->in_vref)); 399 } 400 static ssize_t in_min_show(struct device *dev, 401 struct device_attribute *devattr, char *buf) 402 { 403 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 404 struct pc87360_data *data = pc87360_update_device(dev); 405 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index], 406 data->in_vref)); 407 } 408 static ssize_t in_max_show(struct device *dev, 409 struct device_attribute *devattr, char *buf) 410 { 411 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 412 struct pc87360_data *data = pc87360_update_device(dev); 413 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index], 414 data->in_vref)); 415 } 416 static ssize_t in_status_show(struct device *dev, 417 struct device_attribute *devattr, char *buf) 418 { 419 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 420 struct pc87360_data *data = pc87360_update_device(dev); 421 return sprintf(buf, "%u\n", data->in_status[attr->index]); 422 } 423 static ssize_t in_min_store(struct device *dev, 424 struct device_attribute *devattr, const char *buf, 425 size_t count) 426 { 427 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 428 struct pc87360_data *data = dev_get_drvdata(dev); 429 long val; 430 int err; 431 432 err = kstrtol(buf, 10, &val); 433 if (err) 434 return err; 435 436 mutex_lock(&data->update_lock); 437 data->in_min[attr->index] = IN_TO_REG(val, data->in_vref); 438 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MIN, 439 data->in_min[attr->index]); 440 mutex_unlock(&data->update_lock); 441 return count; 442 } 443 static ssize_t in_max_store(struct device *dev, 444 struct device_attribute *devattr, const char *buf, 445 size_t count) 446 { 447 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 448 struct pc87360_data *data = dev_get_drvdata(dev); 449 long val; 450 int err; 451 452 err = kstrtol(buf, 10, &val); 453 if (err) 454 return err; 455 456 mutex_lock(&data->update_lock); 457 data->in_max[attr->index] = IN_TO_REG(val, 458 data->in_vref); 459 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MAX, 460 data->in_max[attr->index]); 461 mutex_unlock(&data->update_lock); 462 return count; 463 } 464 465 static struct sensor_device_attribute in_input[] = { 466 SENSOR_ATTR_RO(in0_input, in_input, 0), 467 SENSOR_ATTR_RO(in1_input, in_input, 1), 468 SENSOR_ATTR_RO(in2_input, in_input, 2), 469 SENSOR_ATTR_RO(in3_input, in_input, 3), 470 SENSOR_ATTR_RO(in4_input, in_input, 4), 471 SENSOR_ATTR_RO(in5_input, in_input, 5), 472 SENSOR_ATTR_RO(in6_input, in_input, 6), 473 SENSOR_ATTR_RO(in7_input, in_input, 7), 474 SENSOR_ATTR_RO(in8_input, in_input, 8), 475 SENSOR_ATTR_RO(in9_input, in_input, 9), 476 SENSOR_ATTR_RO(in10_input, in_input, 10), 477 }; 478 static struct sensor_device_attribute in_status[] = { 479 SENSOR_ATTR_RO(in0_status, in_status, 0), 480 SENSOR_ATTR_RO(in1_status, in_status, 1), 481 SENSOR_ATTR_RO(in2_status, in_status, 2), 482 SENSOR_ATTR_RO(in3_status, in_status, 3), 483 SENSOR_ATTR_RO(in4_status, in_status, 4), 484 SENSOR_ATTR_RO(in5_status, in_status, 5), 485 SENSOR_ATTR_RO(in6_status, in_status, 6), 486 SENSOR_ATTR_RO(in7_status, in_status, 7), 487 SENSOR_ATTR_RO(in8_status, in_status, 8), 488 SENSOR_ATTR_RO(in9_status, in_status, 9), 489 SENSOR_ATTR_RO(in10_status, in_status, 10), 490 }; 491 static struct sensor_device_attribute in_min[] = { 492 SENSOR_ATTR_RW(in0_min, in_min, 0), 493 SENSOR_ATTR_RW(in1_min, in_min, 1), 494 SENSOR_ATTR_RW(in2_min, in_min, 2), 495 SENSOR_ATTR_RW(in3_min, in_min, 3), 496 SENSOR_ATTR_RW(in4_min, in_min, 4), 497 SENSOR_ATTR_RW(in5_min, in_min, 5), 498 SENSOR_ATTR_RW(in6_min, in_min, 6), 499 SENSOR_ATTR_RW(in7_min, in_min, 7), 500 SENSOR_ATTR_RW(in8_min, in_min, 8), 501 SENSOR_ATTR_RW(in9_min, in_min, 9), 502 SENSOR_ATTR_RW(in10_min, in_min, 10), 503 }; 504 static struct sensor_device_attribute in_max[] = { 505 SENSOR_ATTR_RW(in0_max, in_max, 0), 506 SENSOR_ATTR_RW(in1_max, in_max, 1), 507 SENSOR_ATTR_RW(in2_max, in_max, 2), 508 SENSOR_ATTR_RW(in3_max, in_max, 3), 509 SENSOR_ATTR_RW(in4_max, in_max, 4), 510 SENSOR_ATTR_RW(in5_max, in_max, 5), 511 SENSOR_ATTR_RW(in6_max, in_max, 6), 512 SENSOR_ATTR_RW(in7_max, in_max, 7), 513 SENSOR_ATTR_RW(in8_max, in_max, 8), 514 SENSOR_ATTR_RW(in9_max, in_max, 9), 515 SENSOR_ATTR_RW(in10_max, in_max, 10), 516 }; 517 518 /* (temp & vin) channel status register alarm bits (pdf sec.11.5.12) */ 519 #define CHAN_ALM_MIN 0x02 /* min limit crossed */ 520 #define CHAN_ALM_MAX 0x04 /* max limit exceeded */ 521 #define TEMP_ALM_CRIT 0x08 /* temp crit exceeded (temp only) */ 522 523 /* 524 * show_in_min/max_alarm() reads data from the per-channel status 525 * register (sec 11.5.12), not the vin event status registers (sec 526 * 11.5.2) that (legacy) show_in_alarm() resds (via data->in_alarms) 527 */ 528 529 static ssize_t in_min_alarm_show(struct device *dev, 530 struct device_attribute *devattr, char *buf) 531 { 532 struct pc87360_data *data = pc87360_update_device(dev); 533 unsigned nr = to_sensor_dev_attr(devattr)->index; 534 535 return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MIN)); 536 } 537 static ssize_t in_max_alarm_show(struct device *dev, 538 struct device_attribute *devattr, char *buf) 539 { 540 struct pc87360_data *data = pc87360_update_device(dev); 541 unsigned nr = to_sensor_dev_attr(devattr)->index; 542 543 return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MAX)); 544 } 545 546 static struct sensor_device_attribute in_min_alarm[] = { 547 SENSOR_ATTR_RO(in0_min_alarm, in_min_alarm, 0), 548 SENSOR_ATTR_RO(in1_min_alarm, in_min_alarm, 1), 549 SENSOR_ATTR_RO(in2_min_alarm, in_min_alarm, 2), 550 SENSOR_ATTR_RO(in3_min_alarm, in_min_alarm, 3), 551 SENSOR_ATTR_RO(in4_min_alarm, in_min_alarm, 4), 552 SENSOR_ATTR_RO(in5_min_alarm, in_min_alarm, 5), 553 SENSOR_ATTR_RO(in6_min_alarm, in_min_alarm, 6), 554 SENSOR_ATTR_RO(in7_min_alarm, in_min_alarm, 7), 555 SENSOR_ATTR_RO(in8_min_alarm, in_min_alarm, 8), 556 SENSOR_ATTR_RO(in9_min_alarm, in_min_alarm, 9), 557 SENSOR_ATTR_RO(in10_min_alarm, in_min_alarm, 10), 558 }; 559 static struct sensor_device_attribute in_max_alarm[] = { 560 SENSOR_ATTR_RO(in0_max_alarm, in_max_alarm, 0), 561 SENSOR_ATTR_RO(in1_max_alarm, in_max_alarm, 1), 562 SENSOR_ATTR_RO(in2_max_alarm, in_max_alarm, 2), 563 SENSOR_ATTR_RO(in3_max_alarm, in_max_alarm, 3), 564 SENSOR_ATTR_RO(in4_max_alarm, in_max_alarm, 4), 565 SENSOR_ATTR_RO(in5_max_alarm, in_max_alarm, 5), 566 SENSOR_ATTR_RO(in6_max_alarm, in_max_alarm, 6), 567 SENSOR_ATTR_RO(in7_max_alarm, in_max_alarm, 7), 568 SENSOR_ATTR_RO(in8_max_alarm, in_max_alarm, 8), 569 SENSOR_ATTR_RO(in9_max_alarm, in_max_alarm, 9), 570 SENSOR_ATTR_RO(in10_max_alarm, in_max_alarm, 10), 571 }; 572 573 #define VIN_UNIT_ATTRS(X) \ 574 &in_input[X].dev_attr.attr, \ 575 &in_status[X].dev_attr.attr, \ 576 &in_min[X].dev_attr.attr, \ 577 &in_max[X].dev_attr.attr, \ 578 &in_min_alarm[X].dev_attr.attr, \ 579 &in_max_alarm[X].dev_attr.attr 580 581 static ssize_t cpu0_vid_show(struct device *dev, 582 struct device_attribute *attr, char *buf) 583 { 584 struct pc87360_data *data = pc87360_update_device(dev); 585 return sprintf(buf, "%u\n", vid_from_reg(data->vid, data->vrm)); 586 } 587 static DEVICE_ATTR_RO(cpu0_vid); 588 589 static ssize_t vrm_show(struct device *dev, struct device_attribute *attr, 590 char *buf) 591 { 592 struct pc87360_data *data = dev_get_drvdata(dev); 593 return sprintf(buf, "%u\n", data->vrm); 594 } 595 static ssize_t vrm_store(struct device *dev, struct device_attribute *attr, 596 const char *buf, size_t count) 597 { 598 struct pc87360_data *data = dev_get_drvdata(dev); 599 unsigned long val; 600 int err; 601 602 err = kstrtoul(buf, 10, &val); 603 if (err) 604 return err; 605 606 if (val > 255) 607 return -EINVAL; 608 609 data->vrm = val; 610 return count; 611 } 612 static DEVICE_ATTR_RW(vrm); 613 614 static ssize_t alarms_in_show(struct device *dev, 615 struct device_attribute *attr, char *buf) 616 { 617 struct pc87360_data *data = pc87360_update_device(dev); 618 return sprintf(buf, "%u\n", data->in_alarms); 619 } 620 static DEVICE_ATTR_RO(alarms_in); 621 622 static struct attribute *pc8736x_vin_attr_array[] = { 623 VIN_UNIT_ATTRS(0), 624 VIN_UNIT_ATTRS(1), 625 VIN_UNIT_ATTRS(2), 626 VIN_UNIT_ATTRS(3), 627 VIN_UNIT_ATTRS(4), 628 VIN_UNIT_ATTRS(5), 629 VIN_UNIT_ATTRS(6), 630 VIN_UNIT_ATTRS(7), 631 VIN_UNIT_ATTRS(8), 632 VIN_UNIT_ATTRS(9), 633 VIN_UNIT_ATTRS(10), 634 &dev_attr_cpu0_vid.attr, 635 &dev_attr_vrm.attr, 636 &dev_attr_alarms_in.attr, 637 NULL 638 }; 639 static const struct attribute_group pc8736x_vin_group = { 640 .attrs = pc8736x_vin_attr_array, 641 }; 642 643 static ssize_t therm_input_show(struct device *dev, 644 struct device_attribute *devattr, char *buf) 645 { 646 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 647 struct pc87360_data *data = pc87360_update_device(dev); 648 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index], 649 data->in_vref)); 650 } 651 static ssize_t therm_min_show(struct device *dev, 652 struct device_attribute *devattr, char *buf) 653 { 654 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 655 struct pc87360_data *data = pc87360_update_device(dev); 656 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index], 657 data->in_vref)); 658 } 659 static ssize_t therm_max_show(struct device *dev, 660 struct device_attribute *devattr, char *buf) 661 { 662 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 663 struct pc87360_data *data = pc87360_update_device(dev); 664 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index], 665 data->in_vref)); 666 } 667 static ssize_t therm_crit_show(struct device *dev, 668 struct device_attribute *devattr, char *buf) 669 { 670 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 671 struct pc87360_data *data = pc87360_update_device(dev); 672 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_crit[attr->index-11], 673 data->in_vref)); 674 } 675 static ssize_t therm_status_show(struct device *dev, 676 struct device_attribute *devattr, char *buf) 677 { 678 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 679 struct pc87360_data *data = pc87360_update_device(dev); 680 return sprintf(buf, "%u\n", data->in_status[attr->index]); 681 } 682 683 static ssize_t therm_min_store(struct device *dev, 684 struct device_attribute *devattr, 685 const char *buf, size_t count) 686 { 687 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 688 struct pc87360_data *data = dev_get_drvdata(dev); 689 long val; 690 int err; 691 692 err = kstrtol(buf, 10, &val); 693 if (err) 694 return err; 695 696 mutex_lock(&data->update_lock); 697 data->in_min[attr->index] = IN_TO_REG(val, data->in_vref); 698 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MIN, 699 data->in_min[attr->index]); 700 mutex_unlock(&data->update_lock); 701 return count; 702 } 703 704 static ssize_t therm_max_store(struct device *dev, 705 struct device_attribute *devattr, 706 const char *buf, size_t count) 707 { 708 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 709 struct pc87360_data *data = dev_get_drvdata(dev); 710 long val; 711 int err; 712 713 err = kstrtol(buf, 10, &val); 714 if (err) 715 return err; 716 717 mutex_lock(&data->update_lock); 718 data->in_max[attr->index] = IN_TO_REG(val, data->in_vref); 719 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MAX, 720 data->in_max[attr->index]); 721 mutex_unlock(&data->update_lock); 722 return count; 723 } 724 static ssize_t therm_crit_store(struct device *dev, 725 struct device_attribute *devattr, 726 const char *buf, size_t count) 727 { 728 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 729 struct pc87360_data *data = dev_get_drvdata(dev); 730 long val; 731 int err; 732 733 err = kstrtol(buf, 10, &val); 734 if (err) 735 return err; 736 737 mutex_lock(&data->update_lock); 738 data->in_crit[attr->index-11] = IN_TO_REG(val, data->in_vref); 739 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_CRIT, 740 data->in_crit[attr->index-11]); 741 mutex_unlock(&data->update_lock); 742 return count; 743 } 744 745 /* 746 * the +11 term below reflects the fact that VLM units 11,12,13 are 747 * used in the chip to measure voltage across the thermistors 748 */ 749 static struct sensor_device_attribute therm_input[] = { 750 SENSOR_ATTR_RO(temp4_input, therm_input, 0 + 11), 751 SENSOR_ATTR_RO(temp5_input, therm_input, 1 + 11), 752 SENSOR_ATTR_RO(temp6_input, therm_input, 2 + 11), 753 }; 754 static struct sensor_device_attribute therm_status[] = { 755 SENSOR_ATTR_RO(temp4_status, therm_status, 0 + 11), 756 SENSOR_ATTR_RO(temp5_status, therm_status, 1 + 11), 757 SENSOR_ATTR_RO(temp6_status, therm_status, 2 + 11), 758 }; 759 static struct sensor_device_attribute therm_min[] = { 760 SENSOR_ATTR_RW(temp4_min, therm_min, 0 + 11), 761 SENSOR_ATTR_RW(temp5_min, therm_min, 1 + 11), 762 SENSOR_ATTR_RW(temp6_min, therm_min, 2 + 11), 763 }; 764 static struct sensor_device_attribute therm_max[] = { 765 SENSOR_ATTR_RW(temp4_max, therm_max, 0 + 11), 766 SENSOR_ATTR_RW(temp5_max, therm_max, 1 + 11), 767 SENSOR_ATTR_RW(temp6_max, therm_max, 2 + 11), 768 }; 769 static struct sensor_device_attribute therm_crit[] = { 770 SENSOR_ATTR_RW(temp4_crit, therm_crit, 0 + 11), 771 SENSOR_ATTR_RW(temp5_crit, therm_crit, 1 + 11), 772 SENSOR_ATTR_RW(temp6_crit, therm_crit, 2 + 11), 773 }; 774 775 /* 776 * show_therm_min/max_alarm() reads data from the per-channel voltage 777 * status register (sec 11.5.12) 778 */ 779 780 static ssize_t therm_min_alarm_show(struct device *dev, 781 struct device_attribute *devattr, 782 char *buf) 783 { 784 struct pc87360_data *data = pc87360_update_device(dev); 785 unsigned nr = to_sensor_dev_attr(devattr)->index; 786 787 return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MIN)); 788 } 789 static ssize_t therm_max_alarm_show(struct device *dev, 790 struct device_attribute *devattr, 791 char *buf) 792 { 793 struct pc87360_data *data = pc87360_update_device(dev); 794 unsigned nr = to_sensor_dev_attr(devattr)->index; 795 796 return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MAX)); 797 } 798 static ssize_t therm_crit_alarm_show(struct device *dev, 799 struct device_attribute *devattr, 800 char *buf) 801 { 802 struct pc87360_data *data = pc87360_update_device(dev); 803 unsigned nr = to_sensor_dev_attr(devattr)->index; 804 805 return sprintf(buf, "%u\n", !!(data->in_status[nr] & TEMP_ALM_CRIT)); 806 } 807 808 static struct sensor_device_attribute therm_min_alarm[] = { 809 SENSOR_ATTR_RO(temp4_min_alarm, therm_min_alarm, 0 + 11), 810 SENSOR_ATTR_RO(temp5_min_alarm, therm_min_alarm, 1 + 11), 811 SENSOR_ATTR_RO(temp6_min_alarm, therm_min_alarm, 2 + 11), 812 }; 813 static struct sensor_device_attribute therm_max_alarm[] = { 814 SENSOR_ATTR_RO(temp4_max_alarm, therm_max_alarm, 0 + 11), 815 SENSOR_ATTR_RO(temp5_max_alarm, therm_max_alarm, 1 + 11), 816 SENSOR_ATTR_RO(temp6_max_alarm, therm_max_alarm, 2 + 11), 817 }; 818 static struct sensor_device_attribute therm_crit_alarm[] = { 819 SENSOR_ATTR_RO(temp4_crit_alarm, therm_crit_alarm, 0 + 11), 820 SENSOR_ATTR_RO(temp5_crit_alarm, therm_crit_alarm, 1 + 11), 821 SENSOR_ATTR_RO(temp6_crit_alarm, therm_crit_alarm, 2 + 11), 822 }; 823 824 #define THERM_UNIT_ATTRS(X) \ 825 &therm_input[X].dev_attr.attr, \ 826 &therm_status[X].dev_attr.attr, \ 827 &therm_min[X].dev_attr.attr, \ 828 &therm_max[X].dev_attr.attr, \ 829 &therm_crit[X].dev_attr.attr, \ 830 &therm_min_alarm[X].dev_attr.attr, \ 831 &therm_max_alarm[X].dev_attr.attr, \ 832 &therm_crit_alarm[X].dev_attr.attr 833 834 static struct attribute *pc8736x_therm_attr_array[] = { 835 THERM_UNIT_ATTRS(0), 836 THERM_UNIT_ATTRS(1), 837 THERM_UNIT_ATTRS(2), 838 NULL 839 }; 840 static const struct attribute_group pc8736x_therm_group = { 841 .attrs = pc8736x_therm_attr_array, 842 }; 843 844 static ssize_t temp_input_show(struct device *dev, 845 struct device_attribute *devattr, char *buf) 846 { 847 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 848 struct pc87360_data *data = pc87360_update_device(dev); 849 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[attr->index])); 850 } 851 852 static ssize_t temp_min_show(struct device *dev, 853 struct device_attribute *devattr, char *buf) 854 { 855 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 856 struct pc87360_data *data = pc87360_update_device(dev); 857 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[attr->index])); 858 } 859 860 static ssize_t temp_max_show(struct device *dev, 861 struct device_attribute *devattr, char *buf) 862 { 863 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 864 struct pc87360_data *data = pc87360_update_device(dev); 865 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[attr->index])); 866 } 867 868 static ssize_t temp_crit_show(struct device *dev, 869 struct device_attribute *devattr, char *buf) 870 { 871 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 872 struct pc87360_data *data = pc87360_update_device(dev); 873 return sprintf(buf, "%d\n", 874 TEMP_FROM_REG(data->temp_crit[attr->index])); 875 } 876 877 static ssize_t temp_status_show(struct device *dev, 878 struct device_attribute *devattr, char *buf) 879 { 880 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 881 struct pc87360_data *data = pc87360_update_device(dev); 882 return sprintf(buf, "%d\n", data->temp_status[attr->index]); 883 } 884 885 static ssize_t temp_min_store(struct device *dev, 886 struct device_attribute *devattr, 887 const char *buf, size_t count) 888 { 889 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 890 struct pc87360_data *data = dev_get_drvdata(dev); 891 long val; 892 int err; 893 894 err = kstrtol(buf, 10, &val); 895 if (err) 896 return err; 897 898 mutex_lock(&data->update_lock); 899 data->temp_min[attr->index] = TEMP_TO_REG(val); 900 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MIN, 901 data->temp_min[attr->index]); 902 mutex_unlock(&data->update_lock); 903 return count; 904 } 905 906 static ssize_t temp_max_store(struct device *dev, 907 struct device_attribute *devattr, 908 const char *buf, size_t count) 909 { 910 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 911 struct pc87360_data *data = dev_get_drvdata(dev); 912 long val; 913 int err; 914 915 err = kstrtol(buf, 10, &val); 916 if (err) 917 return err; 918 919 mutex_lock(&data->update_lock); 920 data->temp_max[attr->index] = TEMP_TO_REG(val); 921 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MAX, 922 data->temp_max[attr->index]); 923 mutex_unlock(&data->update_lock); 924 return count; 925 } 926 927 static ssize_t temp_crit_store(struct device *dev, 928 struct device_attribute *devattr, 929 const char *buf, size_t count) 930 { 931 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 932 struct pc87360_data *data = dev_get_drvdata(dev); 933 long val; 934 int err; 935 936 err = kstrtol(buf, 10, &val); 937 if (err) 938 return err; 939 940 mutex_lock(&data->update_lock); 941 data->temp_crit[attr->index] = TEMP_TO_REG(val); 942 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_CRIT, 943 data->temp_crit[attr->index]); 944 mutex_unlock(&data->update_lock); 945 return count; 946 } 947 948 static struct sensor_device_attribute temp_input[] = { 949 SENSOR_ATTR_RO(temp1_input, temp_input, 0), 950 SENSOR_ATTR_RO(temp2_input, temp_input, 1), 951 SENSOR_ATTR_RO(temp3_input, temp_input, 2), 952 }; 953 static struct sensor_device_attribute temp_status[] = { 954 SENSOR_ATTR_RO(temp1_status, temp_status, 0), 955 SENSOR_ATTR_RO(temp2_status, temp_status, 1), 956 SENSOR_ATTR_RO(temp3_status, temp_status, 2), 957 }; 958 static struct sensor_device_attribute temp_min[] = { 959 SENSOR_ATTR_RW(temp1_min, temp_min, 0), 960 SENSOR_ATTR_RW(temp2_min, temp_min, 1), 961 SENSOR_ATTR_RW(temp3_min, temp_min, 2), 962 }; 963 static struct sensor_device_attribute temp_max[] = { 964 SENSOR_ATTR_RW(temp1_max, temp_max, 0), 965 SENSOR_ATTR_RW(temp2_max, temp_max, 1), 966 SENSOR_ATTR_RW(temp3_max, temp_max, 2), 967 }; 968 static struct sensor_device_attribute temp_crit[] = { 969 SENSOR_ATTR_RW(temp1_crit, temp_crit, 0), 970 SENSOR_ATTR_RW(temp2_crit, temp_crit, 1), 971 SENSOR_ATTR_RW(temp3_crit, temp_crit, 2), 972 }; 973 974 static ssize_t alarms_temp_show(struct device *dev, 975 struct device_attribute *attr, char *buf) 976 { 977 struct pc87360_data *data = pc87360_update_device(dev); 978 return sprintf(buf, "%u\n", data->temp_alarms); 979 } 980 981 static DEVICE_ATTR_RO(alarms_temp); 982 983 /* 984 * show_temp_min/max_alarm() reads data from the per-channel status 985 * register (sec 12.3.7), not the temp event status registers (sec 986 * 12.3.2) that show_temp_alarm() reads (via data->temp_alarms) 987 */ 988 989 static ssize_t temp_min_alarm_show(struct device *dev, 990 struct device_attribute *devattr, 991 char *buf) 992 { 993 struct pc87360_data *data = pc87360_update_device(dev); 994 unsigned nr = to_sensor_dev_attr(devattr)->index; 995 996 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & CHAN_ALM_MIN)); 997 } 998 999 static ssize_t temp_max_alarm_show(struct device *dev, 1000 struct device_attribute *devattr, 1001 char *buf) 1002 { 1003 struct pc87360_data *data = pc87360_update_device(dev); 1004 unsigned nr = to_sensor_dev_attr(devattr)->index; 1005 1006 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & CHAN_ALM_MAX)); 1007 } 1008 1009 static ssize_t temp_crit_alarm_show(struct device *dev, 1010 struct device_attribute *devattr, 1011 char *buf) 1012 { 1013 struct pc87360_data *data = pc87360_update_device(dev); 1014 unsigned nr = to_sensor_dev_attr(devattr)->index; 1015 1016 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & TEMP_ALM_CRIT)); 1017 } 1018 1019 static struct sensor_device_attribute temp_min_alarm[] = { 1020 SENSOR_ATTR_RO(temp1_min_alarm, temp_min_alarm, 0), 1021 SENSOR_ATTR_RO(temp2_min_alarm, temp_min_alarm, 1), 1022 SENSOR_ATTR_RO(temp3_min_alarm, temp_min_alarm, 2), 1023 }; 1024 1025 static struct sensor_device_attribute temp_max_alarm[] = { 1026 SENSOR_ATTR_RO(temp1_max_alarm, temp_max_alarm, 0), 1027 SENSOR_ATTR_RO(temp2_max_alarm, temp_max_alarm, 1), 1028 SENSOR_ATTR_RO(temp3_max_alarm, temp_max_alarm, 2), 1029 }; 1030 1031 static struct sensor_device_attribute temp_crit_alarm[] = { 1032 SENSOR_ATTR_RO(temp1_crit_alarm, temp_crit_alarm, 0), 1033 SENSOR_ATTR_RO(temp2_crit_alarm, temp_crit_alarm, 1), 1034 SENSOR_ATTR_RO(temp3_crit_alarm, temp_crit_alarm, 2), 1035 }; 1036 1037 #define TEMP_FAULT 0x40 /* open diode */ 1038 static ssize_t temp_fault_show(struct device *dev, 1039 struct device_attribute *devattr, char *buf) 1040 { 1041 struct pc87360_data *data = pc87360_update_device(dev); 1042 unsigned nr = to_sensor_dev_attr(devattr)->index; 1043 1044 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & TEMP_FAULT)); 1045 } 1046 static struct sensor_device_attribute temp_fault[] = { 1047 SENSOR_ATTR_RO(temp1_fault, temp_fault, 0), 1048 SENSOR_ATTR_RO(temp2_fault, temp_fault, 1), 1049 SENSOR_ATTR_RO(temp3_fault, temp_fault, 2), 1050 }; 1051 1052 #define TEMP_UNIT_ATTRS(X) \ 1053 { &temp_input[X].dev_attr.attr, \ 1054 &temp_status[X].dev_attr.attr, \ 1055 &temp_min[X].dev_attr.attr, \ 1056 &temp_max[X].dev_attr.attr, \ 1057 &temp_crit[X].dev_attr.attr, \ 1058 &temp_min_alarm[X].dev_attr.attr, \ 1059 &temp_max_alarm[X].dev_attr.attr, \ 1060 &temp_crit_alarm[X].dev_attr.attr, \ 1061 &temp_fault[X].dev_attr.attr, \ 1062 NULL \ 1063 } 1064 1065 static struct attribute *pc8736x_temp_attr[][10] = { 1066 TEMP_UNIT_ATTRS(0), 1067 TEMP_UNIT_ATTRS(1), 1068 TEMP_UNIT_ATTRS(2) 1069 }; 1070 1071 static const struct attribute_group pc8736x_temp_attr_group[] = { 1072 { .attrs = pc8736x_temp_attr[0] }, 1073 { .attrs = pc8736x_temp_attr[1] }, 1074 { .attrs = pc8736x_temp_attr[2] } 1075 }; 1076 1077 static ssize_t name_show(struct device *dev, 1078 struct device_attribute *devattr, char *buf) 1079 { 1080 struct pc87360_data *data = dev_get_drvdata(dev); 1081 return sprintf(buf, "%s\n", data->name); 1082 } 1083 1084 static DEVICE_ATTR_RO(name); 1085 1086 /* 1087 * Device detection, registration and update 1088 */ 1089 1090 static int __init pc87360_find(int sioaddr, u8 *devid, 1091 unsigned short *addresses) 1092 { 1093 u16 val; 1094 int i; 1095 int nrdev; /* logical device count */ 1096 1097 /* No superio_enter */ 1098 1099 /* Identify device */ 1100 val = force_id ? force_id : superio_inb(sioaddr, DEVID); 1101 switch (val) { 1102 case 0xE1: /* PC87360 */ 1103 case 0xE8: /* PC87363 */ 1104 case 0xE4: /* PC87364 */ 1105 nrdev = 1; 1106 break; 1107 case 0xE5: /* PC87365 */ 1108 case 0xE9: /* PC87366 */ 1109 nrdev = 3; 1110 break; 1111 default: 1112 superio_exit(sioaddr); 1113 return -ENODEV; 1114 } 1115 /* Remember the device id */ 1116 *devid = val; 1117 1118 for (i = 0; i < nrdev; i++) { 1119 /* select logical device */ 1120 superio_outb(sioaddr, DEV, logdev[i]); 1121 1122 val = superio_inb(sioaddr, ACT); 1123 if (!(val & 0x01)) { 1124 pr_info("Device 0x%02x not activated\n", logdev[i]); 1125 continue; 1126 } 1127 1128 val = (superio_inb(sioaddr, BASE) << 8) 1129 | superio_inb(sioaddr, BASE + 1); 1130 if (!val) { 1131 pr_info("Base address not set for device 0x%02x\n", 1132 logdev[i]); 1133 continue; 1134 } 1135 1136 addresses[i] = val; 1137 1138 if (i == 0) { /* Fans */ 1139 confreg[0] = superio_inb(sioaddr, 0xF0); 1140 confreg[1] = superio_inb(sioaddr, 0xF1); 1141 1142 pr_debug("Fan %d: mon=%d ctrl=%d inv=%d\n", 1, 1143 (confreg[0] >> 2) & 1, (confreg[0] >> 3) & 1, 1144 (confreg[0] >> 4) & 1); 1145 pr_debug("Fan %d: mon=%d ctrl=%d inv=%d\n", 2, 1146 (confreg[0] >> 5) & 1, (confreg[0] >> 6) & 1, 1147 (confreg[0] >> 7) & 1); 1148 pr_debug("Fan %d: mon=%d ctrl=%d inv=%d\n", 3, 1149 confreg[1] & 1, (confreg[1] >> 1) & 1, 1150 (confreg[1] >> 2) & 1); 1151 } else if (i == 1) { /* Voltages */ 1152 /* Are we using thermistors? */ 1153 if (*devid == 0xE9) { /* PC87366 */ 1154 /* 1155 * These registers are not logical-device 1156 * specific, just that we won't need them if 1157 * we don't use the VLM device 1158 */ 1159 confreg[2] = superio_inb(sioaddr, 0x2B); 1160 confreg[3] = superio_inb(sioaddr, 0x25); 1161 1162 if (confreg[2] & 0x40) { 1163 pr_info("Using thermistors for temperature monitoring\n"); 1164 } 1165 if (confreg[3] & 0xE0) { 1166 pr_info("VID inputs routed (mode %u)\n", 1167 confreg[3] >> 5); 1168 } 1169 } 1170 } 1171 } 1172 1173 superio_exit(sioaddr); 1174 return 0; 1175 } 1176 1177 static void pc87360_remove_files(struct device *dev) 1178 { 1179 int i; 1180 1181 device_remove_file(dev, &dev_attr_name); 1182 device_remove_file(dev, &dev_attr_alarms_temp); 1183 for (i = 0; i < ARRAY_SIZE(pc8736x_temp_attr_group); i++) 1184 sysfs_remove_group(&dev->kobj, &pc8736x_temp_attr_group[i]); 1185 for (i = 0; i < ARRAY_SIZE(pc8736x_fan_attr_group); i++) { 1186 sysfs_remove_group(&pdev->dev.kobj, &pc8736x_fan_attr_group[i]); 1187 device_remove_file(dev, &pwm[i].dev_attr); 1188 } 1189 sysfs_remove_group(&dev->kobj, &pc8736x_therm_group); 1190 sysfs_remove_group(&dev->kobj, &pc8736x_vin_group); 1191 } 1192 1193 static int pc87360_probe(struct platform_device *pdev) 1194 { 1195 int i; 1196 struct pc87360_data *data; 1197 int err = 0; 1198 const char *name; 1199 int use_thermistors = 0; 1200 struct device *dev = &pdev->dev; 1201 1202 data = devm_kzalloc(dev, sizeof(struct pc87360_data), GFP_KERNEL); 1203 if (!data) 1204 return -ENOMEM; 1205 1206 switch (devid) { 1207 default: 1208 name = "pc87360"; 1209 data->fannr = 2; 1210 break; 1211 case 0xe8: 1212 name = "pc87363"; 1213 data->fannr = 2; 1214 break; 1215 case 0xe4: 1216 name = "pc87364"; 1217 data->fannr = 3; 1218 break; 1219 case 0xe5: 1220 name = "pc87365"; 1221 data->fannr = extra_isa[0] ? 3 : 0; 1222 data->innr = extra_isa[1] ? 11 : 0; 1223 data->tempnr = extra_isa[2] ? 2 : 0; 1224 break; 1225 case 0xe9: 1226 name = "pc87366"; 1227 data->fannr = extra_isa[0] ? 3 : 0; 1228 data->innr = extra_isa[1] ? 14 : 0; 1229 data->tempnr = extra_isa[2] ? 3 : 0; 1230 break; 1231 } 1232 1233 data->name = name; 1234 mutex_init(&data->lock); 1235 mutex_init(&data->update_lock); 1236 platform_set_drvdata(pdev, data); 1237 1238 for (i = 0; i < LDNI_MAX; i++) { 1239 data->address[i] = extra_isa[i]; 1240 if (data->address[i] 1241 && !devm_request_region(dev, extra_isa[i], PC87360_EXTENT, 1242 pc87360_driver.driver.name)) { 1243 dev_err(dev, 1244 "Region 0x%x-0x%x already in use!\n", 1245 extra_isa[i], extra_isa[i]+PC87360_EXTENT-1); 1246 return -EBUSY; 1247 } 1248 } 1249 1250 /* Retrieve the fans configuration from Super-I/O space */ 1251 if (data->fannr) 1252 data->fan_conf = confreg[0] | (confreg[1] << 8); 1253 1254 /* 1255 * Use the correct reference voltage 1256 * Unless both the VLM and the TMS logical devices agree to 1257 * use an external Vref, the internal one is used. 1258 */ 1259 if (data->innr) { 1260 i = pc87360_read_value(data, LD_IN, NO_BANK, 1261 PC87365_REG_IN_CONFIG); 1262 if (data->tempnr) { 1263 i &= pc87360_read_value(data, LD_TEMP, NO_BANK, 1264 PC87365_REG_TEMP_CONFIG); 1265 } 1266 data->in_vref = (i&0x02) ? 3025 : 2966; 1267 dev_dbg(dev, "Using %s reference voltage\n", 1268 (i&0x02) ? "external" : "internal"); 1269 1270 data->vid_conf = confreg[3]; 1271 data->vrm = vid_which_vrm(); 1272 } 1273 1274 /* Fan clock dividers may be needed before any data is read */ 1275 for (i = 0; i < data->fannr; i++) { 1276 if (FAN_CONFIG_MONITOR(data->fan_conf, i)) 1277 data->fan_status[i] = pc87360_read_value(data, 1278 LD_FAN, NO_BANK, 1279 PC87360_REG_FAN_STATUS(i)); 1280 } 1281 1282 if (init > 0) { 1283 if (devid == 0xe9 && data->address[1]) /* PC87366 */ 1284 use_thermistors = confreg[2] & 0x40; 1285 1286 pc87360_init_device(pdev, use_thermistors); 1287 } 1288 1289 /* Register all-or-nothing sysfs groups */ 1290 1291 if (data->innr) { 1292 err = sysfs_create_group(&dev->kobj, &pc8736x_vin_group); 1293 if (err) 1294 goto error; 1295 } 1296 1297 if (data->innr == 14) { 1298 err = sysfs_create_group(&dev->kobj, &pc8736x_therm_group); 1299 if (err) 1300 goto error; 1301 } 1302 1303 /* create device attr-files for varying sysfs groups */ 1304 1305 if (data->tempnr) { 1306 for (i = 0; i < data->tempnr; i++) { 1307 err = sysfs_create_group(&dev->kobj, 1308 &pc8736x_temp_attr_group[i]); 1309 if (err) 1310 goto error; 1311 } 1312 err = device_create_file(dev, &dev_attr_alarms_temp); 1313 if (err) 1314 goto error; 1315 } 1316 1317 for (i = 0; i < data->fannr; i++) { 1318 if (FAN_CONFIG_MONITOR(data->fan_conf, i)) { 1319 err = sysfs_create_group(&dev->kobj, 1320 &pc8736x_fan_attr_group[i]); 1321 if (err) 1322 goto error; 1323 } 1324 if (FAN_CONFIG_CONTROL(data->fan_conf, i)) { 1325 err = device_create_file(dev, &pwm[i].dev_attr); 1326 if (err) 1327 goto error; 1328 } 1329 } 1330 1331 err = device_create_file(dev, &dev_attr_name); 1332 if (err) 1333 goto error; 1334 1335 data->hwmon_dev = hwmon_device_register(dev); 1336 if (IS_ERR(data->hwmon_dev)) { 1337 err = PTR_ERR(data->hwmon_dev); 1338 goto error; 1339 } 1340 return 0; 1341 1342 error: 1343 pc87360_remove_files(dev); 1344 return err; 1345 } 1346 1347 static int pc87360_remove(struct platform_device *pdev) 1348 { 1349 struct pc87360_data *data = platform_get_drvdata(pdev); 1350 1351 hwmon_device_unregister(data->hwmon_dev); 1352 pc87360_remove_files(&pdev->dev); 1353 1354 return 0; 1355 } 1356 1357 /* 1358 * ldi is the logical device index 1359 * bank is for voltages and temperatures only 1360 */ 1361 static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank, 1362 u8 reg) 1363 { 1364 int res; 1365 1366 mutex_lock(&(data->lock)); 1367 if (bank != NO_BANK) 1368 outb_p(bank, data->address[ldi] + PC87365_REG_BANK); 1369 res = inb_p(data->address[ldi] + reg); 1370 mutex_unlock(&(data->lock)); 1371 1372 return res; 1373 } 1374 1375 static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank, 1376 u8 reg, u8 value) 1377 { 1378 mutex_lock(&(data->lock)); 1379 if (bank != NO_BANK) 1380 outb_p(bank, data->address[ldi] + PC87365_REG_BANK); 1381 outb_p(value, data->address[ldi] + reg); 1382 mutex_unlock(&(data->lock)); 1383 } 1384 1385 /* (temp & vin) channel conversion status register flags (pdf sec.11.5.12) */ 1386 #define CHAN_CNVRTD 0x80 /* new data ready */ 1387 #define CHAN_ENA 0x01 /* enabled channel (temp or vin) */ 1388 #define CHAN_ALM_ENA 0x10 /* propagate to alarms-reg ?? (chk val!) */ 1389 #define CHAN_READY (CHAN_ENA|CHAN_CNVRTD) /* sample ready mask */ 1390 1391 #define TEMP_OTS_OE 0x20 /* OTS Output Enable */ 1392 #define VIN_RW1C_MASK (CHAN_READY|CHAN_ALM_MAX|CHAN_ALM_MIN) /* 0x87 */ 1393 #define TEMP_RW1C_MASK (VIN_RW1C_MASK|TEMP_ALM_CRIT|TEMP_FAULT) /* 0xCF */ 1394 1395 static void pc87360_init_device(struct platform_device *pdev, 1396 int use_thermistors) 1397 { 1398 struct pc87360_data *data = platform_get_drvdata(pdev); 1399 int i, nr; 1400 const u8 init_in[14] = { 2, 2, 2, 2, 2, 2, 2, 1, 1, 3, 1, 2, 2, 2 }; 1401 const u8 init_temp[3] = { 2, 2, 1 }; 1402 u8 reg; 1403 1404 if (init >= 2 && data->innr) { 1405 reg = pc87360_read_value(data, LD_IN, NO_BANK, 1406 PC87365_REG_IN_CONVRATE); 1407 dev_info(&pdev->dev, 1408 "VLM conversion set to 1s period, 160us delay\n"); 1409 pc87360_write_value(data, LD_IN, NO_BANK, 1410 PC87365_REG_IN_CONVRATE, 1411 (reg & 0xC0) | 0x11); 1412 } 1413 1414 nr = data->innr < 11 ? data->innr : 11; 1415 for (i = 0; i < nr; i++) { 1416 reg = pc87360_read_value(data, LD_IN, i, 1417 PC87365_REG_IN_STATUS); 1418 dev_dbg(&pdev->dev, "bios in%d status:0x%02x\n", i, reg); 1419 if (init >= init_in[i]) { 1420 /* Forcibly enable voltage channel */ 1421 if (!(reg & CHAN_ENA)) { 1422 dev_dbg(&pdev->dev, "Forcibly enabling in%d\n", 1423 i); 1424 pc87360_write_value(data, LD_IN, i, 1425 PC87365_REG_IN_STATUS, 1426 (reg & 0x68) | 0x87); 1427 } 1428 } 1429 } 1430 1431 /* 1432 * We can't blindly trust the Super-I/O space configuration bit, 1433 * most BIOS won't set it properly 1434 */ 1435 dev_dbg(&pdev->dev, "bios thermistors:%d\n", use_thermistors); 1436 for (i = 11; i < data->innr; i++) { 1437 reg = pc87360_read_value(data, LD_IN, i, 1438 PC87365_REG_TEMP_STATUS); 1439 use_thermistors = use_thermistors || (reg & CHAN_ENA); 1440 /* thermistors are temp[4-6], measured on vin[11-14] */ 1441 dev_dbg(&pdev->dev, "bios temp%d_status:0x%02x\n", i-7, reg); 1442 } 1443 dev_dbg(&pdev->dev, "using thermistors:%d\n", use_thermistors); 1444 1445 i = use_thermistors ? 2 : 0; 1446 for (; i < data->tempnr; i++) { 1447 reg = pc87360_read_value(data, LD_TEMP, i, 1448 PC87365_REG_TEMP_STATUS); 1449 dev_dbg(&pdev->dev, "bios temp%d_status:0x%02x\n", i + 1, reg); 1450 if (init >= init_temp[i]) { 1451 /* Forcibly enable temperature channel */ 1452 if (!(reg & CHAN_ENA)) { 1453 dev_dbg(&pdev->dev, 1454 "Forcibly enabling temp%d\n", i + 1); 1455 pc87360_write_value(data, LD_TEMP, i, 1456 PC87365_REG_TEMP_STATUS, 1457 0xCF); 1458 } 1459 } 1460 } 1461 1462 if (use_thermistors) { 1463 for (i = 11; i < data->innr; i++) { 1464 if (init >= init_in[i]) { 1465 /* 1466 * The pin may already be used by thermal 1467 * diodes 1468 */ 1469 reg = pc87360_read_value(data, LD_TEMP, 1470 (i - 11) / 2, PC87365_REG_TEMP_STATUS); 1471 if (reg & CHAN_ENA) { 1472 dev_dbg(&pdev->dev, 1473 "Skipping temp%d, pin already in use by temp%d\n", 1474 i - 7, (i - 11) / 2); 1475 continue; 1476 } 1477 1478 /* Forcibly enable thermistor channel */ 1479 reg = pc87360_read_value(data, LD_IN, i, 1480 PC87365_REG_IN_STATUS); 1481 if (!(reg & CHAN_ENA)) { 1482 dev_dbg(&pdev->dev, 1483 "Forcibly enabling temp%d\n", 1484 i - 7); 1485 pc87360_write_value(data, LD_IN, i, 1486 PC87365_REG_TEMP_STATUS, 1487 (reg & 0x60) | 0x8F); 1488 } 1489 } 1490 } 1491 } 1492 1493 if (data->innr) { 1494 reg = pc87360_read_value(data, LD_IN, NO_BANK, 1495 PC87365_REG_IN_CONFIG); 1496 dev_dbg(&pdev->dev, "bios vin-cfg:0x%02x\n", reg); 1497 if (reg & CHAN_ENA) { 1498 dev_dbg(&pdev->dev, 1499 "Forcibly enabling monitoring (VLM)\n"); 1500 pc87360_write_value(data, LD_IN, NO_BANK, 1501 PC87365_REG_IN_CONFIG, 1502 reg & 0xFE); 1503 } 1504 } 1505 1506 if (data->tempnr) { 1507 reg = pc87360_read_value(data, LD_TEMP, NO_BANK, 1508 PC87365_REG_TEMP_CONFIG); 1509 dev_dbg(&pdev->dev, "bios temp-cfg:0x%02x\n", reg); 1510 if (reg & CHAN_ENA) { 1511 dev_dbg(&pdev->dev, 1512 "Forcibly enabling monitoring (TMS)\n"); 1513 pc87360_write_value(data, LD_TEMP, NO_BANK, 1514 PC87365_REG_TEMP_CONFIG, 1515 reg & 0xFE); 1516 } 1517 1518 if (init >= 2) { 1519 /* Chip config as documented by National Semi. */ 1520 pc87360_write_value(data, LD_TEMP, 0xF, 0xA, 0x08); 1521 /* 1522 * We voluntarily omit the bank here, in case the 1523 * sequence itself matters. It shouldn't be a problem, 1524 * since nobody else is supposed to access the 1525 * device at that point. 1526 */ 1527 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xB, 0x04); 1528 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xC, 0x35); 1529 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xD, 0x05); 1530 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xE, 0x05); 1531 } 1532 } 1533 } 1534 1535 static void pc87360_autodiv(struct device *dev, int nr) 1536 { 1537 struct pc87360_data *data = dev_get_drvdata(dev); 1538 u8 old_min = data->fan_min[nr]; 1539 1540 /* Increase clock divider if needed and possible */ 1541 if ((data->fan_status[nr] & 0x04) /* overflow flag */ 1542 || (data->fan[nr] >= 224)) { /* next to overflow */ 1543 if ((data->fan_status[nr] & 0x60) != 0x60) { 1544 data->fan_status[nr] += 0x20; 1545 data->fan_min[nr] >>= 1; 1546 data->fan[nr] >>= 1; 1547 dev_dbg(dev, 1548 "Increasing clock divider to %d for fan %d\n", 1549 FAN_DIV_FROM_REG(data->fan_status[nr]), nr + 1); 1550 } 1551 } else { 1552 /* Decrease clock divider if possible */ 1553 while (!(data->fan_min[nr] & 0x80) /* min "nails" divider */ 1554 && data->fan[nr] < 85 /* bad accuracy */ 1555 && (data->fan_status[nr] & 0x60) != 0x00) { 1556 data->fan_status[nr] -= 0x20; 1557 data->fan_min[nr] <<= 1; 1558 data->fan[nr] <<= 1; 1559 dev_dbg(dev, 1560 "Decreasing clock divider to %d for fan %d\n", 1561 FAN_DIV_FROM_REG(data->fan_status[nr]), 1562 nr + 1); 1563 } 1564 } 1565 1566 /* Write new fan min if it changed */ 1567 if (old_min != data->fan_min[nr]) { 1568 pc87360_write_value(data, LD_FAN, NO_BANK, 1569 PC87360_REG_FAN_MIN(nr), 1570 data->fan_min[nr]); 1571 } 1572 } 1573 1574 static struct pc87360_data *pc87360_update_device(struct device *dev) 1575 { 1576 struct pc87360_data *data = dev_get_drvdata(dev); 1577 u8 i; 1578 1579 mutex_lock(&data->update_lock); 1580 1581 if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) { 1582 dev_dbg(dev, "Data update\n"); 1583 1584 /* Fans */ 1585 for (i = 0; i < data->fannr; i++) { 1586 if (FAN_CONFIG_MONITOR(data->fan_conf, i)) { 1587 data->fan_status[i] = 1588 pc87360_read_value(data, LD_FAN, 1589 NO_BANK, PC87360_REG_FAN_STATUS(i)); 1590 data->fan[i] = pc87360_read_value(data, LD_FAN, 1591 NO_BANK, PC87360_REG_FAN(i)); 1592 data->fan_min[i] = pc87360_read_value(data, 1593 LD_FAN, NO_BANK, 1594 PC87360_REG_FAN_MIN(i)); 1595 /* Change clock divider if needed */ 1596 pc87360_autodiv(dev, i); 1597 /* Clear bits and write new divider */ 1598 pc87360_write_value(data, LD_FAN, NO_BANK, 1599 PC87360_REG_FAN_STATUS(i), 1600 data->fan_status[i]); 1601 } 1602 if (FAN_CONFIG_CONTROL(data->fan_conf, i)) 1603 data->pwm[i] = pc87360_read_value(data, LD_FAN, 1604 NO_BANK, PC87360_REG_PWM(i)); 1605 } 1606 1607 /* Voltages */ 1608 for (i = 0; i < data->innr; i++) { 1609 data->in_status[i] = pc87360_read_value(data, LD_IN, i, 1610 PC87365_REG_IN_STATUS); 1611 /* Clear bits */ 1612 pc87360_write_value(data, LD_IN, i, 1613 PC87365_REG_IN_STATUS, 1614 data->in_status[i]); 1615 if ((data->in_status[i] & CHAN_READY) == CHAN_READY) { 1616 data->in[i] = pc87360_read_value(data, LD_IN, 1617 i, PC87365_REG_IN); 1618 } 1619 if (data->in_status[i] & CHAN_ENA) { 1620 data->in_min[i] = pc87360_read_value(data, 1621 LD_IN, i, 1622 PC87365_REG_IN_MIN); 1623 data->in_max[i] = pc87360_read_value(data, 1624 LD_IN, i, 1625 PC87365_REG_IN_MAX); 1626 if (i >= 11) 1627 data->in_crit[i-11] = 1628 pc87360_read_value(data, LD_IN, 1629 i, PC87365_REG_TEMP_CRIT); 1630 } 1631 } 1632 if (data->innr) { 1633 data->in_alarms = pc87360_read_value(data, LD_IN, 1634 NO_BANK, PC87365_REG_IN_ALARMS1) 1635 | ((pc87360_read_value(data, LD_IN, 1636 NO_BANK, PC87365_REG_IN_ALARMS2) 1637 & 0x07) << 8); 1638 data->vid = (data->vid_conf & 0xE0) ? 1639 pc87360_read_value(data, LD_IN, 1640 NO_BANK, PC87365_REG_VID) : 0x1F; 1641 } 1642 1643 /* Temperatures */ 1644 for (i = 0; i < data->tempnr; i++) { 1645 data->temp_status[i] = pc87360_read_value(data, 1646 LD_TEMP, i, 1647 PC87365_REG_TEMP_STATUS); 1648 /* Clear bits */ 1649 pc87360_write_value(data, LD_TEMP, i, 1650 PC87365_REG_TEMP_STATUS, 1651 data->temp_status[i]); 1652 if ((data->temp_status[i] & CHAN_READY) == CHAN_READY) { 1653 data->temp[i] = pc87360_read_value(data, 1654 LD_TEMP, i, 1655 PC87365_REG_TEMP); 1656 } 1657 if (data->temp_status[i] & CHAN_ENA) { 1658 data->temp_min[i] = pc87360_read_value(data, 1659 LD_TEMP, i, 1660 PC87365_REG_TEMP_MIN); 1661 data->temp_max[i] = pc87360_read_value(data, 1662 LD_TEMP, i, 1663 PC87365_REG_TEMP_MAX); 1664 data->temp_crit[i] = pc87360_read_value(data, 1665 LD_TEMP, i, 1666 PC87365_REG_TEMP_CRIT); 1667 } 1668 } 1669 if (data->tempnr) { 1670 data->temp_alarms = pc87360_read_value(data, LD_TEMP, 1671 NO_BANK, PC87365_REG_TEMP_ALARMS) 1672 & 0x3F; 1673 } 1674 1675 data->last_updated = jiffies; 1676 data->valid = 1; 1677 } 1678 1679 mutex_unlock(&data->update_lock); 1680 1681 return data; 1682 } 1683 1684 static int __init pc87360_device_add(unsigned short address) 1685 { 1686 struct resource res[3]; 1687 int err, i, res_count; 1688 1689 pdev = platform_device_alloc("pc87360", address); 1690 if (!pdev) { 1691 err = -ENOMEM; 1692 pr_err("Device allocation failed\n"); 1693 goto exit; 1694 } 1695 1696 memset(res, 0, 3 * sizeof(struct resource)); 1697 res_count = 0; 1698 for (i = 0; i < 3; i++) { 1699 if (!extra_isa[i]) 1700 continue; 1701 res[res_count].start = extra_isa[i]; 1702 res[res_count].end = extra_isa[i] + PC87360_EXTENT - 1; 1703 res[res_count].name = "pc87360", 1704 res[res_count].flags = IORESOURCE_IO, 1705 1706 err = acpi_check_resource_conflict(&res[res_count]); 1707 if (err) 1708 goto exit_device_put; 1709 1710 res_count++; 1711 } 1712 1713 err = platform_device_add_resources(pdev, res, res_count); 1714 if (err) { 1715 pr_err("Device resources addition failed (%d)\n", err); 1716 goto exit_device_put; 1717 } 1718 1719 err = platform_device_add(pdev); 1720 if (err) { 1721 pr_err("Device addition failed (%d)\n", err); 1722 goto exit_device_put; 1723 } 1724 1725 return 0; 1726 1727 exit_device_put: 1728 platform_device_put(pdev); 1729 exit: 1730 return err; 1731 } 1732 1733 static int __init pc87360_init(void) 1734 { 1735 int err, i; 1736 unsigned short address = 0; 1737 1738 if (pc87360_find(0x2e, &devid, extra_isa) 1739 && pc87360_find(0x4e, &devid, extra_isa)) { 1740 pr_warn("PC8736x not detected, module not inserted\n"); 1741 return -ENODEV; 1742 } 1743 1744 /* Arbitrarily pick one of the addresses */ 1745 for (i = 0; i < 3; i++) { 1746 if (extra_isa[i] != 0x0000) { 1747 address = extra_isa[i]; 1748 break; 1749 } 1750 } 1751 1752 if (address == 0x0000) { 1753 pr_warn("No active logical device, module not inserted\n"); 1754 return -ENODEV; 1755 } 1756 1757 err = platform_driver_register(&pc87360_driver); 1758 if (err) 1759 goto exit; 1760 1761 /* Sets global pdev as a side effect */ 1762 err = pc87360_device_add(address); 1763 if (err) 1764 goto exit_driver; 1765 1766 return 0; 1767 1768 exit_driver: 1769 platform_driver_unregister(&pc87360_driver); 1770 exit: 1771 return err; 1772 } 1773 1774 static void __exit pc87360_exit(void) 1775 { 1776 platform_device_unregister(pdev); 1777 platform_driver_unregister(&pc87360_driver); 1778 } 1779 1780 1781 MODULE_AUTHOR("Jean Delvare <jdelvare@suse.de>"); 1782 MODULE_DESCRIPTION("PC8736x hardware monitor"); 1783 MODULE_LICENSE("GPL"); 1784 1785 module_init(pc87360_init); 1786 module_exit(pc87360_exit); 1787