1 /* 2 * pc87360.c - Part of lm_sensors, Linux kernel modules 3 * for hardware monitoring 4 * Copyright (C) 2004, 2007 Jean Delvare <jdelvare@suse.de> 5 * 6 * Copied from smsc47m1.c: 7 * Copyright (C) 2002 Mark D. Studebaker <mdsxyz123@yahoo.com> 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License as published by 11 * the Free Software Foundation; either version 2 of the License, or 12 * (at your option) any later version. 13 * 14 * This program is distributed in the hope that it will be useful, 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 * GNU General Public License for more details. 18 * 19 * You should have received a copy of the GNU General Public License 20 * along with this program; if not, write to the Free Software 21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 22 * 23 * Supports the following chips: 24 * 25 * Chip #vin #fan #pwm #temp devid 26 * PC87360 - 2 2 - 0xE1 27 * PC87363 - 2 2 - 0xE8 28 * PC87364 - 3 3 - 0xE4 29 * PC87365 11 3 3 2 0xE5 30 * PC87366 11 3 3 3-4 0xE9 31 * 32 * This driver assumes that no more than one chip is present, and one of 33 * the standard Super-I/O addresses is used (0x2E/0x2F or 0x4E/0x4F). 34 */ 35 36 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 37 38 #include <linux/module.h> 39 #include <linux/init.h> 40 #include <linux/slab.h> 41 #include <linux/jiffies.h> 42 #include <linux/platform_device.h> 43 #include <linux/hwmon.h> 44 #include <linux/hwmon-sysfs.h> 45 #include <linux/hwmon-vid.h> 46 #include <linux/err.h> 47 #include <linux/mutex.h> 48 #include <linux/acpi.h> 49 #include <linux/io.h> 50 51 static u8 devid; 52 static struct platform_device *pdev; 53 static unsigned short extra_isa[3]; 54 static u8 confreg[4]; 55 56 static int init = 1; 57 module_param(init, int, 0); 58 MODULE_PARM_DESC(init, 59 "Chip initialization level:\n" 60 " 0: None\n" 61 "*1: Forcibly enable internal voltage and temperature channels, except in9\n" 62 " 2: Forcibly enable all voltage and temperature channels, except in9\n" 63 " 3: Forcibly enable all voltage and temperature channels, including in9"); 64 65 static unsigned short force_id; 66 module_param(force_id, ushort, 0); 67 MODULE_PARM_DESC(force_id, "Override the detected device ID"); 68 69 /* 70 * Super-I/O registers and operations 71 */ 72 73 #define DEV 0x07 /* Register: Logical device select */ 74 #define DEVID 0x20 /* Register: Device ID */ 75 #define ACT 0x30 /* Register: Device activation */ 76 #define BASE 0x60 /* Register: Base address */ 77 78 #define FSCM 0x09 /* Logical device: fans */ 79 #define VLM 0x0d /* Logical device: voltages */ 80 #define TMS 0x0e /* Logical device: temperatures */ 81 #define LDNI_MAX 3 82 static const u8 logdev[LDNI_MAX] = { FSCM, VLM, TMS }; 83 84 #define LD_FAN 0 85 #define LD_IN 1 86 #define LD_TEMP 2 87 88 static inline void superio_outb(int sioaddr, int reg, int val) 89 { 90 outb(reg, sioaddr); 91 outb(val, sioaddr + 1); 92 } 93 94 static inline int superio_inb(int sioaddr, int reg) 95 { 96 outb(reg, sioaddr); 97 return inb(sioaddr + 1); 98 } 99 100 static inline void superio_exit(int sioaddr) 101 { 102 outb(0x02, sioaddr); 103 outb(0x02, sioaddr + 1); 104 } 105 106 /* 107 * Logical devices 108 */ 109 110 #define PC87360_EXTENT 0x10 111 #define PC87365_REG_BANK 0x09 112 #define NO_BANK 0xff 113 114 /* 115 * Fan registers and conversions 116 */ 117 118 /* nr has to be 0 or 1 (PC87360/87363) or 2 (PC87364/87365/87366) */ 119 #define PC87360_REG_PRESCALE(nr) (0x00 + 2 * (nr)) 120 #define PC87360_REG_PWM(nr) (0x01 + 2 * (nr)) 121 #define PC87360_REG_FAN_MIN(nr) (0x06 + 3 * (nr)) 122 #define PC87360_REG_FAN(nr) (0x07 + 3 * (nr)) 123 #define PC87360_REG_FAN_STATUS(nr) (0x08 + 3 * (nr)) 124 125 #define FAN_FROM_REG(val, div) ((val) == 0 ? 0 : \ 126 480000 / ((val) * (div))) 127 #define FAN_TO_REG(val, div) ((val) <= 100 ? 0 : \ 128 480000 / ((val) * (div))) 129 #define FAN_DIV_FROM_REG(val) (1 << (((val) >> 5) & 0x03)) 130 #define FAN_STATUS_FROM_REG(val) ((val) & 0x07) 131 132 #define FAN_CONFIG_MONITOR(val, nr) (((val) >> (2 + (nr) * 3)) & 1) 133 #define FAN_CONFIG_CONTROL(val, nr) (((val) >> (3 + (nr) * 3)) & 1) 134 #define FAN_CONFIG_INVERT(val, nr) (((val) >> (4 + (nr) * 3)) & 1) 135 136 #define PWM_FROM_REG(val, inv) ((inv) ? 255 - (val) : (val)) 137 static inline u8 PWM_TO_REG(int val, int inv) 138 { 139 if (inv) 140 val = 255 - val; 141 if (val < 0) 142 return 0; 143 if (val > 255) 144 return 255; 145 return val; 146 } 147 148 /* 149 * Voltage registers and conversions 150 */ 151 152 #define PC87365_REG_IN_CONVRATE 0x07 153 #define PC87365_REG_IN_CONFIG 0x08 154 #define PC87365_REG_IN 0x0B 155 #define PC87365_REG_IN_MIN 0x0D 156 #define PC87365_REG_IN_MAX 0x0C 157 #define PC87365_REG_IN_STATUS 0x0A 158 #define PC87365_REG_IN_ALARMS1 0x00 159 #define PC87365_REG_IN_ALARMS2 0x01 160 #define PC87365_REG_VID 0x06 161 162 #define IN_FROM_REG(val, ref) (((val) * (ref) + 128) / 256) 163 #define IN_TO_REG(val, ref) ((val) < 0 ? 0 : \ 164 (val) * 256 >= (ref) * 255 ? 255 : \ 165 ((val) * 256 + (ref) / 2) / (ref)) 166 167 /* 168 * Temperature registers and conversions 169 */ 170 171 #define PC87365_REG_TEMP_CONFIG 0x08 172 #define PC87365_REG_TEMP 0x0B 173 #define PC87365_REG_TEMP_MIN 0x0D 174 #define PC87365_REG_TEMP_MAX 0x0C 175 #define PC87365_REG_TEMP_CRIT 0x0E 176 #define PC87365_REG_TEMP_STATUS 0x0A 177 #define PC87365_REG_TEMP_ALARMS 0x00 178 179 #define TEMP_FROM_REG(val) ((val) * 1000) 180 #define TEMP_TO_REG(val) ((val) < -55000 ? -55 : \ 181 (val) > 127000 ? 127 : \ 182 (val) < 0 ? ((val) - 500) / 1000 : \ 183 ((val) + 500) / 1000) 184 185 /* 186 * Device data 187 */ 188 189 struct pc87360_data { 190 const char *name; 191 struct device *hwmon_dev; 192 struct mutex lock; 193 struct mutex update_lock; 194 char valid; /* !=0 if following fields are valid */ 195 unsigned long last_updated; /* In jiffies */ 196 197 int address[3]; 198 199 u8 fannr, innr, tempnr; 200 201 u8 fan[3]; /* Register value */ 202 u8 fan_min[3]; /* Register value */ 203 u8 fan_status[3]; /* Register value */ 204 u8 pwm[3]; /* Register value */ 205 u16 fan_conf; /* Configuration register values, combined */ 206 207 u16 in_vref; /* 1 mV/bit */ 208 u8 in[14]; /* Register value */ 209 u8 in_min[14]; /* Register value */ 210 u8 in_max[14]; /* Register value */ 211 u8 in_crit[3]; /* Register value */ 212 u8 in_status[14]; /* Register value */ 213 u16 in_alarms; /* Register values, combined, masked */ 214 u8 vid_conf; /* Configuration register value */ 215 u8 vrm; 216 u8 vid; /* Register value */ 217 218 s8 temp[3]; /* Register value */ 219 s8 temp_min[3]; /* Register value */ 220 s8 temp_max[3]; /* Register value */ 221 s8 temp_crit[3]; /* Register value */ 222 u8 temp_status[3]; /* Register value */ 223 u8 temp_alarms; /* Register value, masked */ 224 }; 225 226 /* 227 * Functions declaration 228 */ 229 230 static int pc87360_probe(struct platform_device *pdev); 231 static int pc87360_remove(struct platform_device *pdev); 232 233 static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank, 234 u8 reg); 235 static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank, 236 u8 reg, u8 value); 237 static void pc87360_init_device(struct platform_device *pdev, 238 int use_thermistors); 239 static struct pc87360_data *pc87360_update_device(struct device *dev); 240 241 /* 242 * Driver data 243 */ 244 245 static struct platform_driver pc87360_driver = { 246 .driver = { 247 .owner = THIS_MODULE, 248 .name = "pc87360", 249 }, 250 .probe = pc87360_probe, 251 .remove = pc87360_remove, 252 }; 253 254 /* 255 * Sysfs stuff 256 */ 257 258 static ssize_t show_fan_input(struct device *dev, 259 struct device_attribute *devattr, char *buf) 260 { 261 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 262 struct pc87360_data *data = pc87360_update_device(dev); 263 return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan[attr->index], 264 FAN_DIV_FROM_REG(data->fan_status[attr->index]))); 265 } 266 static ssize_t show_fan_min(struct device *dev, 267 struct device_attribute *devattr, char *buf) 268 { 269 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 270 struct pc87360_data *data = pc87360_update_device(dev); 271 return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan_min[attr->index], 272 FAN_DIV_FROM_REG(data->fan_status[attr->index]))); 273 } 274 static ssize_t show_fan_div(struct device *dev, 275 struct device_attribute *devattr, char *buf) 276 { 277 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 278 struct pc87360_data *data = pc87360_update_device(dev); 279 return sprintf(buf, "%u\n", 280 FAN_DIV_FROM_REG(data->fan_status[attr->index])); 281 } 282 static ssize_t show_fan_status(struct device *dev, 283 struct device_attribute *devattr, char *buf) 284 { 285 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 286 struct pc87360_data *data = pc87360_update_device(dev); 287 return sprintf(buf, "%u\n", 288 FAN_STATUS_FROM_REG(data->fan_status[attr->index])); 289 } 290 static ssize_t set_fan_min(struct device *dev, 291 struct device_attribute *devattr, const char *buf, 292 size_t count) 293 { 294 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 295 struct pc87360_data *data = dev_get_drvdata(dev); 296 long fan_min; 297 int err; 298 299 err = kstrtol(buf, 10, &fan_min); 300 if (err) 301 return err; 302 303 mutex_lock(&data->update_lock); 304 fan_min = FAN_TO_REG(fan_min, 305 FAN_DIV_FROM_REG(data->fan_status[attr->index])); 306 307 /* If it wouldn't fit, change clock divisor */ 308 while (fan_min > 255 309 && (data->fan_status[attr->index] & 0x60) != 0x60) { 310 fan_min >>= 1; 311 data->fan[attr->index] >>= 1; 312 data->fan_status[attr->index] += 0x20; 313 } 314 data->fan_min[attr->index] = fan_min > 255 ? 255 : fan_min; 315 pc87360_write_value(data, LD_FAN, NO_BANK, 316 PC87360_REG_FAN_MIN(attr->index), 317 data->fan_min[attr->index]); 318 319 /* Write new divider, preserve alarm bits */ 320 pc87360_write_value(data, LD_FAN, NO_BANK, 321 PC87360_REG_FAN_STATUS(attr->index), 322 data->fan_status[attr->index] & 0xF9); 323 mutex_unlock(&data->update_lock); 324 325 return count; 326 } 327 328 static struct sensor_device_attribute fan_input[] = { 329 SENSOR_ATTR(fan1_input, S_IRUGO, show_fan_input, NULL, 0), 330 SENSOR_ATTR(fan2_input, S_IRUGO, show_fan_input, NULL, 1), 331 SENSOR_ATTR(fan3_input, S_IRUGO, show_fan_input, NULL, 2), 332 }; 333 static struct sensor_device_attribute fan_status[] = { 334 SENSOR_ATTR(fan1_status, S_IRUGO, show_fan_status, NULL, 0), 335 SENSOR_ATTR(fan2_status, S_IRUGO, show_fan_status, NULL, 1), 336 SENSOR_ATTR(fan3_status, S_IRUGO, show_fan_status, NULL, 2), 337 }; 338 static struct sensor_device_attribute fan_div[] = { 339 SENSOR_ATTR(fan1_div, S_IRUGO, show_fan_div, NULL, 0), 340 SENSOR_ATTR(fan2_div, S_IRUGO, show_fan_div, NULL, 1), 341 SENSOR_ATTR(fan3_div, S_IRUGO, show_fan_div, NULL, 2), 342 }; 343 static struct sensor_device_attribute fan_min[] = { 344 SENSOR_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 0), 345 SENSOR_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 1), 346 SENSOR_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 2), 347 }; 348 349 #define FAN_UNIT_ATTRS(X) \ 350 { &fan_input[X].dev_attr.attr, \ 351 &fan_status[X].dev_attr.attr, \ 352 &fan_div[X].dev_attr.attr, \ 353 &fan_min[X].dev_attr.attr, \ 354 NULL \ 355 } 356 357 static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr, 358 char *buf) 359 { 360 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 361 struct pc87360_data *data = pc87360_update_device(dev); 362 return sprintf(buf, "%u\n", 363 PWM_FROM_REG(data->pwm[attr->index], 364 FAN_CONFIG_INVERT(data->fan_conf, 365 attr->index))); 366 } 367 static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr, 368 const char *buf, size_t count) 369 { 370 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 371 struct pc87360_data *data = dev_get_drvdata(dev); 372 long val; 373 int err; 374 375 err = kstrtol(buf, 10, &val); 376 if (err) 377 return err; 378 379 mutex_lock(&data->update_lock); 380 data->pwm[attr->index] = PWM_TO_REG(val, 381 FAN_CONFIG_INVERT(data->fan_conf, attr->index)); 382 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_PWM(attr->index), 383 data->pwm[attr->index]); 384 mutex_unlock(&data->update_lock); 385 return count; 386 } 387 388 static struct sensor_device_attribute pwm[] = { 389 SENSOR_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 0), 390 SENSOR_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 1), 391 SENSOR_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 2), 392 }; 393 394 static struct attribute *pc8736x_fan_attr[][5] = { 395 FAN_UNIT_ATTRS(0), 396 FAN_UNIT_ATTRS(1), 397 FAN_UNIT_ATTRS(2) 398 }; 399 400 static const struct attribute_group pc8736x_fan_attr_group[] = { 401 { .attrs = pc8736x_fan_attr[0], }, 402 { .attrs = pc8736x_fan_attr[1], }, 403 { .attrs = pc8736x_fan_attr[2], }, 404 }; 405 406 static ssize_t show_in_input(struct device *dev, 407 struct device_attribute *devattr, char *buf) 408 { 409 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 410 struct pc87360_data *data = pc87360_update_device(dev); 411 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index], 412 data->in_vref)); 413 } 414 static ssize_t show_in_min(struct device *dev, 415 struct device_attribute *devattr, char *buf) 416 { 417 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 418 struct pc87360_data *data = pc87360_update_device(dev); 419 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index], 420 data->in_vref)); 421 } 422 static ssize_t show_in_max(struct device *dev, 423 struct device_attribute *devattr, char *buf) 424 { 425 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 426 struct pc87360_data *data = pc87360_update_device(dev); 427 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index], 428 data->in_vref)); 429 } 430 static ssize_t show_in_status(struct device *dev, 431 struct device_attribute *devattr, char *buf) 432 { 433 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 434 struct pc87360_data *data = pc87360_update_device(dev); 435 return sprintf(buf, "%u\n", data->in_status[attr->index]); 436 } 437 static ssize_t set_in_min(struct device *dev, struct device_attribute *devattr, 438 const char *buf, size_t count) 439 { 440 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 441 struct pc87360_data *data = dev_get_drvdata(dev); 442 long val; 443 int err; 444 445 err = kstrtol(buf, 10, &val); 446 if (err) 447 return err; 448 449 mutex_lock(&data->update_lock); 450 data->in_min[attr->index] = IN_TO_REG(val, data->in_vref); 451 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MIN, 452 data->in_min[attr->index]); 453 mutex_unlock(&data->update_lock); 454 return count; 455 } 456 static ssize_t set_in_max(struct device *dev, struct device_attribute *devattr, 457 const char *buf, size_t count) 458 { 459 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 460 struct pc87360_data *data = dev_get_drvdata(dev); 461 long val; 462 int err; 463 464 err = kstrtol(buf, 10, &val); 465 if (err) 466 return err; 467 468 mutex_lock(&data->update_lock); 469 data->in_max[attr->index] = IN_TO_REG(val, 470 data->in_vref); 471 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MAX, 472 data->in_max[attr->index]); 473 mutex_unlock(&data->update_lock); 474 return count; 475 } 476 477 static struct sensor_device_attribute in_input[] = { 478 SENSOR_ATTR(in0_input, S_IRUGO, show_in_input, NULL, 0), 479 SENSOR_ATTR(in1_input, S_IRUGO, show_in_input, NULL, 1), 480 SENSOR_ATTR(in2_input, S_IRUGO, show_in_input, NULL, 2), 481 SENSOR_ATTR(in3_input, S_IRUGO, show_in_input, NULL, 3), 482 SENSOR_ATTR(in4_input, S_IRUGO, show_in_input, NULL, 4), 483 SENSOR_ATTR(in5_input, S_IRUGO, show_in_input, NULL, 5), 484 SENSOR_ATTR(in6_input, S_IRUGO, show_in_input, NULL, 6), 485 SENSOR_ATTR(in7_input, S_IRUGO, show_in_input, NULL, 7), 486 SENSOR_ATTR(in8_input, S_IRUGO, show_in_input, NULL, 8), 487 SENSOR_ATTR(in9_input, S_IRUGO, show_in_input, NULL, 9), 488 SENSOR_ATTR(in10_input, S_IRUGO, show_in_input, NULL, 10), 489 }; 490 static struct sensor_device_attribute in_status[] = { 491 SENSOR_ATTR(in0_status, S_IRUGO, show_in_status, NULL, 0), 492 SENSOR_ATTR(in1_status, S_IRUGO, show_in_status, NULL, 1), 493 SENSOR_ATTR(in2_status, S_IRUGO, show_in_status, NULL, 2), 494 SENSOR_ATTR(in3_status, S_IRUGO, show_in_status, NULL, 3), 495 SENSOR_ATTR(in4_status, S_IRUGO, show_in_status, NULL, 4), 496 SENSOR_ATTR(in5_status, S_IRUGO, show_in_status, NULL, 5), 497 SENSOR_ATTR(in6_status, S_IRUGO, show_in_status, NULL, 6), 498 SENSOR_ATTR(in7_status, S_IRUGO, show_in_status, NULL, 7), 499 SENSOR_ATTR(in8_status, S_IRUGO, show_in_status, NULL, 8), 500 SENSOR_ATTR(in9_status, S_IRUGO, show_in_status, NULL, 9), 501 SENSOR_ATTR(in10_status, S_IRUGO, show_in_status, NULL, 10), 502 }; 503 static struct sensor_device_attribute in_min[] = { 504 SENSOR_ATTR(in0_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 0), 505 SENSOR_ATTR(in1_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 1), 506 SENSOR_ATTR(in2_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 2), 507 SENSOR_ATTR(in3_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 3), 508 SENSOR_ATTR(in4_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 4), 509 SENSOR_ATTR(in5_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 5), 510 SENSOR_ATTR(in6_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 6), 511 SENSOR_ATTR(in7_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 7), 512 SENSOR_ATTR(in8_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 8), 513 SENSOR_ATTR(in9_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 9), 514 SENSOR_ATTR(in10_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 10), 515 }; 516 static struct sensor_device_attribute in_max[] = { 517 SENSOR_ATTR(in0_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 0), 518 SENSOR_ATTR(in1_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 1), 519 SENSOR_ATTR(in2_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 2), 520 SENSOR_ATTR(in3_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 3), 521 SENSOR_ATTR(in4_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 4), 522 SENSOR_ATTR(in5_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 5), 523 SENSOR_ATTR(in6_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 6), 524 SENSOR_ATTR(in7_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 7), 525 SENSOR_ATTR(in8_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 8), 526 SENSOR_ATTR(in9_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 9), 527 SENSOR_ATTR(in10_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 10), 528 }; 529 530 /* (temp & vin) channel status register alarm bits (pdf sec.11.5.12) */ 531 #define CHAN_ALM_MIN 0x02 /* min limit crossed */ 532 #define CHAN_ALM_MAX 0x04 /* max limit exceeded */ 533 #define TEMP_ALM_CRIT 0x08 /* temp crit exceeded (temp only) */ 534 535 /* 536 * show_in_min/max_alarm() reads data from the per-channel status 537 * register (sec 11.5.12), not the vin event status registers (sec 538 * 11.5.2) that (legacy) show_in_alarm() resds (via data->in_alarms) 539 */ 540 541 static ssize_t show_in_min_alarm(struct device *dev, 542 struct device_attribute *devattr, char *buf) 543 { 544 struct pc87360_data *data = pc87360_update_device(dev); 545 unsigned nr = to_sensor_dev_attr(devattr)->index; 546 547 return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MIN)); 548 } 549 static ssize_t show_in_max_alarm(struct device *dev, 550 struct device_attribute *devattr, char *buf) 551 { 552 struct pc87360_data *data = pc87360_update_device(dev); 553 unsigned nr = to_sensor_dev_attr(devattr)->index; 554 555 return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MAX)); 556 } 557 558 static struct sensor_device_attribute in_min_alarm[] = { 559 SENSOR_ATTR(in0_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 0), 560 SENSOR_ATTR(in1_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 1), 561 SENSOR_ATTR(in2_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 2), 562 SENSOR_ATTR(in3_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 3), 563 SENSOR_ATTR(in4_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 4), 564 SENSOR_ATTR(in5_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 5), 565 SENSOR_ATTR(in6_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 6), 566 SENSOR_ATTR(in7_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 7), 567 SENSOR_ATTR(in8_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 8), 568 SENSOR_ATTR(in9_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 9), 569 SENSOR_ATTR(in10_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 10), 570 }; 571 static struct sensor_device_attribute in_max_alarm[] = { 572 SENSOR_ATTR(in0_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 0), 573 SENSOR_ATTR(in1_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 1), 574 SENSOR_ATTR(in2_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 2), 575 SENSOR_ATTR(in3_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 3), 576 SENSOR_ATTR(in4_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 4), 577 SENSOR_ATTR(in5_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 5), 578 SENSOR_ATTR(in6_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 6), 579 SENSOR_ATTR(in7_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 7), 580 SENSOR_ATTR(in8_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 8), 581 SENSOR_ATTR(in9_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 9), 582 SENSOR_ATTR(in10_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 10), 583 }; 584 585 #define VIN_UNIT_ATTRS(X) \ 586 &in_input[X].dev_attr.attr, \ 587 &in_status[X].dev_attr.attr, \ 588 &in_min[X].dev_attr.attr, \ 589 &in_max[X].dev_attr.attr, \ 590 &in_min_alarm[X].dev_attr.attr, \ 591 &in_max_alarm[X].dev_attr.attr 592 593 static ssize_t show_vid(struct device *dev, struct device_attribute *attr, 594 char *buf) 595 { 596 struct pc87360_data *data = pc87360_update_device(dev); 597 return sprintf(buf, "%u\n", vid_from_reg(data->vid, data->vrm)); 598 } 599 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL); 600 601 static ssize_t show_vrm(struct device *dev, struct device_attribute *attr, 602 char *buf) 603 { 604 struct pc87360_data *data = dev_get_drvdata(dev); 605 return sprintf(buf, "%u\n", data->vrm); 606 } 607 static ssize_t set_vrm(struct device *dev, struct device_attribute *attr, 608 const char *buf, size_t count) 609 { 610 struct pc87360_data *data = dev_get_drvdata(dev); 611 unsigned long val; 612 int err; 613 614 err = kstrtoul(buf, 10, &val); 615 if (err) 616 return err; 617 618 data->vrm = val; 619 return count; 620 } 621 static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm); 622 623 static ssize_t show_in_alarms(struct device *dev, 624 struct device_attribute *attr, char *buf) 625 { 626 struct pc87360_data *data = pc87360_update_device(dev); 627 return sprintf(buf, "%u\n", data->in_alarms); 628 } 629 static DEVICE_ATTR(alarms_in, S_IRUGO, show_in_alarms, NULL); 630 631 static struct attribute *pc8736x_vin_attr_array[] = { 632 VIN_UNIT_ATTRS(0), 633 VIN_UNIT_ATTRS(1), 634 VIN_UNIT_ATTRS(2), 635 VIN_UNIT_ATTRS(3), 636 VIN_UNIT_ATTRS(4), 637 VIN_UNIT_ATTRS(5), 638 VIN_UNIT_ATTRS(6), 639 VIN_UNIT_ATTRS(7), 640 VIN_UNIT_ATTRS(8), 641 VIN_UNIT_ATTRS(9), 642 VIN_UNIT_ATTRS(10), 643 &dev_attr_cpu0_vid.attr, 644 &dev_attr_vrm.attr, 645 &dev_attr_alarms_in.attr, 646 NULL 647 }; 648 static const struct attribute_group pc8736x_vin_group = { 649 .attrs = pc8736x_vin_attr_array, 650 }; 651 652 static ssize_t show_therm_input(struct device *dev, 653 struct device_attribute *devattr, char *buf) 654 { 655 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 656 struct pc87360_data *data = pc87360_update_device(dev); 657 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index], 658 data->in_vref)); 659 } 660 static ssize_t show_therm_min(struct device *dev, 661 struct device_attribute *devattr, char *buf) 662 { 663 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 664 struct pc87360_data *data = pc87360_update_device(dev); 665 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index], 666 data->in_vref)); 667 } 668 static ssize_t show_therm_max(struct device *dev, 669 struct device_attribute *devattr, char *buf) 670 { 671 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 672 struct pc87360_data *data = pc87360_update_device(dev); 673 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index], 674 data->in_vref)); 675 } 676 static ssize_t show_therm_crit(struct device *dev, 677 struct device_attribute *devattr, char *buf) 678 { 679 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 680 struct pc87360_data *data = pc87360_update_device(dev); 681 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_crit[attr->index-11], 682 data->in_vref)); 683 } 684 static ssize_t show_therm_status(struct device *dev, 685 struct device_attribute *devattr, char *buf) 686 { 687 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 688 struct pc87360_data *data = pc87360_update_device(dev); 689 return sprintf(buf, "%u\n", data->in_status[attr->index]); 690 } 691 692 static ssize_t set_therm_min(struct device *dev, 693 struct device_attribute *devattr, 694 const char *buf, size_t count) 695 { 696 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 697 struct pc87360_data *data = dev_get_drvdata(dev); 698 long val; 699 int err; 700 701 err = kstrtol(buf, 10, &val); 702 if (err) 703 return err; 704 705 mutex_lock(&data->update_lock); 706 data->in_min[attr->index] = IN_TO_REG(val, data->in_vref); 707 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MIN, 708 data->in_min[attr->index]); 709 mutex_unlock(&data->update_lock); 710 return count; 711 } 712 713 static ssize_t set_therm_max(struct device *dev, 714 struct device_attribute *devattr, 715 const char *buf, size_t count) 716 { 717 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 718 struct pc87360_data *data = dev_get_drvdata(dev); 719 long val; 720 int err; 721 722 err = kstrtol(buf, 10, &val); 723 if (err) 724 return err; 725 726 mutex_lock(&data->update_lock); 727 data->in_max[attr->index] = IN_TO_REG(val, data->in_vref); 728 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MAX, 729 data->in_max[attr->index]); 730 mutex_unlock(&data->update_lock); 731 return count; 732 } 733 static ssize_t set_therm_crit(struct device *dev, 734 struct device_attribute *devattr, 735 const char *buf, size_t count) 736 { 737 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 738 struct pc87360_data *data = dev_get_drvdata(dev); 739 long val; 740 int err; 741 742 err = kstrtol(buf, 10, &val); 743 if (err) 744 return err; 745 746 mutex_lock(&data->update_lock); 747 data->in_crit[attr->index-11] = IN_TO_REG(val, data->in_vref); 748 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_CRIT, 749 data->in_crit[attr->index-11]); 750 mutex_unlock(&data->update_lock); 751 return count; 752 } 753 754 /* 755 * the +11 term below reflects the fact that VLM units 11,12,13 are 756 * used in the chip to measure voltage across the thermistors 757 */ 758 static struct sensor_device_attribute therm_input[] = { 759 SENSOR_ATTR(temp4_input, S_IRUGO, show_therm_input, NULL, 0 + 11), 760 SENSOR_ATTR(temp5_input, S_IRUGO, show_therm_input, NULL, 1 + 11), 761 SENSOR_ATTR(temp6_input, S_IRUGO, show_therm_input, NULL, 2 + 11), 762 }; 763 static struct sensor_device_attribute therm_status[] = { 764 SENSOR_ATTR(temp4_status, S_IRUGO, show_therm_status, NULL, 0 + 11), 765 SENSOR_ATTR(temp5_status, S_IRUGO, show_therm_status, NULL, 1 + 11), 766 SENSOR_ATTR(temp6_status, S_IRUGO, show_therm_status, NULL, 2 + 11), 767 }; 768 static struct sensor_device_attribute therm_min[] = { 769 SENSOR_ATTR(temp4_min, S_IRUGO | S_IWUSR, 770 show_therm_min, set_therm_min, 0 + 11), 771 SENSOR_ATTR(temp5_min, S_IRUGO | S_IWUSR, 772 show_therm_min, set_therm_min, 1 + 11), 773 SENSOR_ATTR(temp6_min, S_IRUGO | S_IWUSR, 774 show_therm_min, set_therm_min, 2 + 11), 775 }; 776 static struct sensor_device_attribute therm_max[] = { 777 SENSOR_ATTR(temp4_max, S_IRUGO | S_IWUSR, 778 show_therm_max, set_therm_max, 0 + 11), 779 SENSOR_ATTR(temp5_max, S_IRUGO | S_IWUSR, 780 show_therm_max, set_therm_max, 1 + 11), 781 SENSOR_ATTR(temp6_max, S_IRUGO | S_IWUSR, 782 show_therm_max, set_therm_max, 2 + 11), 783 }; 784 static struct sensor_device_attribute therm_crit[] = { 785 SENSOR_ATTR(temp4_crit, S_IRUGO | S_IWUSR, 786 show_therm_crit, set_therm_crit, 0 + 11), 787 SENSOR_ATTR(temp5_crit, S_IRUGO | S_IWUSR, 788 show_therm_crit, set_therm_crit, 1 + 11), 789 SENSOR_ATTR(temp6_crit, S_IRUGO | S_IWUSR, 790 show_therm_crit, set_therm_crit, 2 + 11), 791 }; 792 793 /* 794 * show_therm_min/max_alarm() reads data from the per-channel voltage 795 * status register (sec 11.5.12) 796 */ 797 798 static ssize_t show_therm_min_alarm(struct device *dev, 799 struct device_attribute *devattr, char *buf) 800 { 801 struct pc87360_data *data = pc87360_update_device(dev); 802 unsigned nr = to_sensor_dev_attr(devattr)->index; 803 804 return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MIN)); 805 } 806 static ssize_t show_therm_max_alarm(struct device *dev, 807 struct device_attribute *devattr, char *buf) 808 { 809 struct pc87360_data *data = pc87360_update_device(dev); 810 unsigned nr = to_sensor_dev_attr(devattr)->index; 811 812 return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MAX)); 813 } 814 static ssize_t show_therm_crit_alarm(struct device *dev, 815 struct device_attribute *devattr, char *buf) 816 { 817 struct pc87360_data *data = pc87360_update_device(dev); 818 unsigned nr = to_sensor_dev_attr(devattr)->index; 819 820 return sprintf(buf, "%u\n", !!(data->in_status[nr] & TEMP_ALM_CRIT)); 821 } 822 823 static struct sensor_device_attribute therm_min_alarm[] = { 824 SENSOR_ATTR(temp4_min_alarm, S_IRUGO, 825 show_therm_min_alarm, NULL, 0 + 11), 826 SENSOR_ATTR(temp5_min_alarm, S_IRUGO, 827 show_therm_min_alarm, NULL, 1 + 11), 828 SENSOR_ATTR(temp6_min_alarm, S_IRUGO, 829 show_therm_min_alarm, NULL, 2 + 11), 830 }; 831 static struct sensor_device_attribute therm_max_alarm[] = { 832 SENSOR_ATTR(temp4_max_alarm, S_IRUGO, 833 show_therm_max_alarm, NULL, 0 + 11), 834 SENSOR_ATTR(temp5_max_alarm, S_IRUGO, 835 show_therm_max_alarm, NULL, 1 + 11), 836 SENSOR_ATTR(temp6_max_alarm, S_IRUGO, 837 show_therm_max_alarm, NULL, 2 + 11), 838 }; 839 static struct sensor_device_attribute therm_crit_alarm[] = { 840 SENSOR_ATTR(temp4_crit_alarm, S_IRUGO, 841 show_therm_crit_alarm, NULL, 0 + 11), 842 SENSOR_ATTR(temp5_crit_alarm, S_IRUGO, 843 show_therm_crit_alarm, NULL, 1 + 11), 844 SENSOR_ATTR(temp6_crit_alarm, S_IRUGO, 845 show_therm_crit_alarm, NULL, 2 + 11), 846 }; 847 848 #define THERM_UNIT_ATTRS(X) \ 849 &therm_input[X].dev_attr.attr, \ 850 &therm_status[X].dev_attr.attr, \ 851 &therm_min[X].dev_attr.attr, \ 852 &therm_max[X].dev_attr.attr, \ 853 &therm_crit[X].dev_attr.attr, \ 854 &therm_min_alarm[X].dev_attr.attr, \ 855 &therm_max_alarm[X].dev_attr.attr, \ 856 &therm_crit_alarm[X].dev_attr.attr 857 858 static struct attribute *pc8736x_therm_attr_array[] = { 859 THERM_UNIT_ATTRS(0), 860 THERM_UNIT_ATTRS(1), 861 THERM_UNIT_ATTRS(2), 862 NULL 863 }; 864 static const struct attribute_group pc8736x_therm_group = { 865 .attrs = pc8736x_therm_attr_array, 866 }; 867 868 static ssize_t show_temp_input(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", TEMP_FROM_REG(data->temp[attr->index])); 874 } 875 876 static ssize_t show_temp_min(struct device *dev, 877 struct device_attribute *devattr, char *buf) 878 { 879 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 880 struct pc87360_data *data = pc87360_update_device(dev); 881 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[attr->index])); 882 } 883 884 static ssize_t show_temp_max(struct device *dev, 885 struct device_attribute *devattr, char *buf) 886 { 887 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 888 struct pc87360_data *data = pc87360_update_device(dev); 889 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[attr->index])); 890 } 891 892 static ssize_t show_temp_crit(struct device *dev, 893 struct device_attribute *devattr, char *buf) 894 { 895 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 896 struct pc87360_data *data = pc87360_update_device(dev); 897 return sprintf(buf, "%d\n", 898 TEMP_FROM_REG(data->temp_crit[attr->index])); 899 } 900 901 static ssize_t show_temp_status(struct device *dev, 902 struct device_attribute *devattr, char *buf) 903 { 904 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 905 struct pc87360_data *data = pc87360_update_device(dev); 906 return sprintf(buf, "%d\n", data->temp_status[attr->index]); 907 } 908 909 static ssize_t set_temp_min(struct device *dev, 910 struct device_attribute *devattr, 911 const char *buf, size_t count) 912 { 913 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 914 struct pc87360_data *data = dev_get_drvdata(dev); 915 long val; 916 int err; 917 918 err = kstrtol(buf, 10, &val); 919 if (err) 920 return err; 921 922 mutex_lock(&data->update_lock); 923 data->temp_min[attr->index] = TEMP_TO_REG(val); 924 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MIN, 925 data->temp_min[attr->index]); 926 mutex_unlock(&data->update_lock); 927 return count; 928 } 929 930 static ssize_t set_temp_max(struct device *dev, 931 struct device_attribute *devattr, 932 const char *buf, size_t count) 933 { 934 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 935 struct pc87360_data *data = dev_get_drvdata(dev); 936 long val; 937 int err; 938 939 err = kstrtol(buf, 10, &val); 940 if (err) 941 return err; 942 943 mutex_lock(&data->update_lock); 944 data->temp_max[attr->index] = TEMP_TO_REG(val); 945 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MAX, 946 data->temp_max[attr->index]); 947 mutex_unlock(&data->update_lock); 948 return count; 949 } 950 951 static ssize_t set_temp_crit(struct device *dev, 952 struct device_attribute *devattr, const char *buf, 953 size_t count) 954 { 955 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 956 struct pc87360_data *data = dev_get_drvdata(dev); 957 long val; 958 int err; 959 960 err = kstrtol(buf, 10, &val); 961 if (err) 962 return err; 963 964 mutex_lock(&data->update_lock); 965 data->temp_crit[attr->index] = TEMP_TO_REG(val); 966 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_CRIT, 967 data->temp_crit[attr->index]); 968 mutex_unlock(&data->update_lock); 969 return count; 970 } 971 972 static struct sensor_device_attribute temp_input[] = { 973 SENSOR_ATTR(temp1_input, S_IRUGO, show_temp_input, NULL, 0), 974 SENSOR_ATTR(temp2_input, S_IRUGO, show_temp_input, NULL, 1), 975 SENSOR_ATTR(temp3_input, S_IRUGO, show_temp_input, NULL, 2), 976 }; 977 static struct sensor_device_attribute temp_status[] = { 978 SENSOR_ATTR(temp1_status, S_IRUGO, show_temp_status, NULL, 0), 979 SENSOR_ATTR(temp2_status, S_IRUGO, show_temp_status, NULL, 1), 980 SENSOR_ATTR(temp3_status, S_IRUGO, show_temp_status, NULL, 2), 981 }; 982 static struct sensor_device_attribute temp_min[] = { 983 SENSOR_ATTR(temp1_min, S_IRUGO | S_IWUSR, 984 show_temp_min, set_temp_min, 0), 985 SENSOR_ATTR(temp2_min, S_IRUGO | S_IWUSR, 986 show_temp_min, set_temp_min, 1), 987 SENSOR_ATTR(temp3_min, S_IRUGO | S_IWUSR, 988 show_temp_min, set_temp_min, 2), 989 }; 990 static struct sensor_device_attribute temp_max[] = { 991 SENSOR_ATTR(temp1_max, S_IRUGO | S_IWUSR, 992 show_temp_max, set_temp_max, 0), 993 SENSOR_ATTR(temp2_max, S_IRUGO | S_IWUSR, 994 show_temp_max, set_temp_max, 1), 995 SENSOR_ATTR(temp3_max, S_IRUGO | S_IWUSR, 996 show_temp_max, set_temp_max, 2), 997 }; 998 static struct sensor_device_attribute temp_crit[] = { 999 SENSOR_ATTR(temp1_crit, S_IRUGO | S_IWUSR, 1000 show_temp_crit, set_temp_crit, 0), 1001 SENSOR_ATTR(temp2_crit, S_IRUGO | S_IWUSR, 1002 show_temp_crit, set_temp_crit, 1), 1003 SENSOR_ATTR(temp3_crit, S_IRUGO | S_IWUSR, 1004 show_temp_crit, set_temp_crit, 2), 1005 }; 1006 1007 static ssize_t show_temp_alarms(struct device *dev, 1008 struct device_attribute *attr, char *buf) 1009 { 1010 struct pc87360_data *data = pc87360_update_device(dev); 1011 return sprintf(buf, "%u\n", data->temp_alarms); 1012 } 1013 1014 static DEVICE_ATTR(alarms_temp, S_IRUGO, show_temp_alarms, NULL); 1015 1016 /* 1017 * show_temp_min/max_alarm() reads data from the per-channel status 1018 * register (sec 12.3.7), not the temp event status registers (sec 1019 * 12.3.2) that show_temp_alarm() reads (via data->temp_alarms) 1020 */ 1021 1022 static ssize_t show_temp_min_alarm(struct device *dev, 1023 struct device_attribute *devattr, char *buf) 1024 { 1025 struct pc87360_data *data = pc87360_update_device(dev); 1026 unsigned nr = to_sensor_dev_attr(devattr)->index; 1027 1028 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & CHAN_ALM_MIN)); 1029 } 1030 1031 static ssize_t show_temp_max_alarm(struct device *dev, 1032 struct device_attribute *devattr, char *buf) 1033 { 1034 struct pc87360_data *data = pc87360_update_device(dev); 1035 unsigned nr = to_sensor_dev_attr(devattr)->index; 1036 1037 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & CHAN_ALM_MAX)); 1038 } 1039 1040 static ssize_t show_temp_crit_alarm(struct device *dev, 1041 struct device_attribute *devattr, char *buf) 1042 { 1043 struct pc87360_data *data = pc87360_update_device(dev); 1044 unsigned nr = to_sensor_dev_attr(devattr)->index; 1045 1046 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & TEMP_ALM_CRIT)); 1047 } 1048 1049 static struct sensor_device_attribute temp_min_alarm[] = { 1050 SENSOR_ATTR(temp1_min_alarm, S_IRUGO, show_temp_min_alarm, NULL, 0), 1051 SENSOR_ATTR(temp2_min_alarm, S_IRUGO, show_temp_min_alarm, NULL, 1), 1052 SENSOR_ATTR(temp3_min_alarm, S_IRUGO, show_temp_min_alarm, NULL, 2), 1053 }; 1054 1055 static struct sensor_device_attribute temp_max_alarm[] = { 1056 SENSOR_ATTR(temp1_max_alarm, S_IRUGO, show_temp_max_alarm, NULL, 0), 1057 SENSOR_ATTR(temp2_max_alarm, S_IRUGO, show_temp_max_alarm, NULL, 1), 1058 SENSOR_ATTR(temp3_max_alarm, S_IRUGO, show_temp_max_alarm, NULL, 2), 1059 }; 1060 1061 static struct sensor_device_attribute temp_crit_alarm[] = { 1062 SENSOR_ATTR(temp1_crit_alarm, S_IRUGO, show_temp_crit_alarm, NULL, 0), 1063 SENSOR_ATTR(temp2_crit_alarm, S_IRUGO, show_temp_crit_alarm, NULL, 1), 1064 SENSOR_ATTR(temp3_crit_alarm, S_IRUGO, show_temp_crit_alarm, NULL, 2), 1065 }; 1066 1067 #define TEMP_FAULT 0x40 /* open diode */ 1068 static ssize_t show_temp_fault(struct device *dev, 1069 struct device_attribute *devattr, char *buf) 1070 { 1071 struct pc87360_data *data = pc87360_update_device(dev); 1072 unsigned nr = to_sensor_dev_attr(devattr)->index; 1073 1074 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & TEMP_FAULT)); 1075 } 1076 static struct sensor_device_attribute temp_fault[] = { 1077 SENSOR_ATTR(temp1_fault, S_IRUGO, show_temp_fault, NULL, 0), 1078 SENSOR_ATTR(temp2_fault, S_IRUGO, show_temp_fault, NULL, 1), 1079 SENSOR_ATTR(temp3_fault, S_IRUGO, show_temp_fault, NULL, 2), 1080 }; 1081 1082 #define TEMP_UNIT_ATTRS(X) \ 1083 { &temp_input[X].dev_attr.attr, \ 1084 &temp_status[X].dev_attr.attr, \ 1085 &temp_min[X].dev_attr.attr, \ 1086 &temp_max[X].dev_attr.attr, \ 1087 &temp_crit[X].dev_attr.attr, \ 1088 &temp_min_alarm[X].dev_attr.attr, \ 1089 &temp_max_alarm[X].dev_attr.attr, \ 1090 &temp_crit_alarm[X].dev_attr.attr, \ 1091 &temp_fault[X].dev_attr.attr, \ 1092 NULL \ 1093 } 1094 1095 static struct attribute *pc8736x_temp_attr[][10] = { 1096 TEMP_UNIT_ATTRS(0), 1097 TEMP_UNIT_ATTRS(1), 1098 TEMP_UNIT_ATTRS(2) 1099 }; 1100 1101 static const struct attribute_group pc8736x_temp_attr_group[] = { 1102 { .attrs = pc8736x_temp_attr[0] }, 1103 { .attrs = pc8736x_temp_attr[1] }, 1104 { .attrs = pc8736x_temp_attr[2] } 1105 }; 1106 1107 static ssize_t show_name(struct device *dev, 1108 struct device_attribute *devattr, char *buf) 1109 { 1110 struct pc87360_data *data = dev_get_drvdata(dev); 1111 return sprintf(buf, "%s\n", data->name); 1112 } 1113 1114 static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); 1115 1116 /* 1117 * Device detection, registration and update 1118 */ 1119 1120 static int __init pc87360_find(int sioaddr, u8 *devid, 1121 unsigned short *addresses) 1122 { 1123 u16 val; 1124 int i; 1125 int nrdev; /* logical device count */ 1126 1127 /* No superio_enter */ 1128 1129 /* Identify device */ 1130 val = force_id ? force_id : superio_inb(sioaddr, DEVID); 1131 switch (val) { 1132 case 0xE1: /* PC87360 */ 1133 case 0xE8: /* PC87363 */ 1134 case 0xE4: /* PC87364 */ 1135 nrdev = 1; 1136 break; 1137 case 0xE5: /* PC87365 */ 1138 case 0xE9: /* PC87366 */ 1139 nrdev = 3; 1140 break; 1141 default: 1142 superio_exit(sioaddr); 1143 return -ENODEV; 1144 } 1145 /* Remember the device id */ 1146 *devid = val; 1147 1148 for (i = 0; i < nrdev; i++) { 1149 /* select logical device */ 1150 superio_outb(sioaddr, DEV, logdev[i]); 1151 1152 val = superio_inb(sioaddr, ACT); 1153 if (!(val & 0x01)) { 1154 pr_info("Device 0x%02x not activated\n", logdev[i]); 1155 continue; 1156 } 1157 1158 val = (superio_inb(sioaddr, BASE) << 8) 1159 | superio_inb(sioaddr, BASE + 1); 1160 if (!val) { 1161 pr_info("Base address not set for device 0x%02x\n", 1162 logdev[i]); 1163 continue; 1164 } 1165 1166 addresses[i] = val; 1167 1168 if (i == 0) { /* Fans */ 1169 confreg[0] = superio_inb(sioaddr, 0xF0); 1170 confreg[1] = superio_inb(sioaddr, 0xF1); 1171 1172 pr_debug("Fan %d: mon=%d ctrl=%d inv=%d\n", 1, 1173 (confreg[0] >> 2) & 1, (confreg[0] >> 3) & 1, 1174 (confreg[0] >> 4) & 1); 1175 pr_debug("Fan %d: mon=%d ctrl=%d inv=%d\n", 2, 1176 (confreg[0] >> 5) & 1, (confreg[0] >> 6) & 1, 1177 (confreg[0] >> 7) & 1); 1178 pr_debug("Fan %d: mon=%d ctrl=%d inv=%d\n", 3, 1179 confreg[1] & 1, (confreg[1] >> 1) & 1, 1180 (confreg[1] >> 2) & 1); 1181 } else if (i == 1) { /* Voltages */ 1182 /* Are we using thermistors? */ 1183 if (*devid == 0xE9) { /* PC87366 */ 1184 /* 1185 * These registers are not logical-device 1186 * specific, just that we won't need them if 1187 * we don't use the VLM device 1188 */ 1189 confreg[2] = superio_inb(sioaddr, 0x2B); 1190 confreg[3] = superio_inb(sioaddr, 0x25); 1191 1192 if (confreg[2] & 0x40) { 1193 pr_info("Using thermistors for temperature monitoring\n"); 1194 } 1195 if (confreg[3] & 0xE0) { 1196 pr_info("VID inputs routed (mode %u)\n", 1197 confreg[3] >> 5); 1198 } 1199 } 1200 } 1201 } 1202 1203 superio_exit(sioaddr); 1204 return 0; 1205 } 1206 1207 static void pc87360_remove_files(struct device *dev) 1208 { 1209 int i; 1210 1211 device_remove_file(dev, &dev_attr_name); 1212 device_remove_file(dev, &dev_attr_alarms_temp); 1213 for (i = 0; i < ARRAY_SIZE(pc8736x_temp_attr_group); i++) 1214 sysfs_remove_group(&dev->kobj, &pc8736x_temp_attr_group[i]); 1215 for (i = 0; i < ARRAY_SIZE(pc8736x_fan_attr_group); i++) { 1216 sysfs_remove_group(&pdev->dev.kobj, &pc8736x_fan_attr_group[i]); 1217 device_remove_file(dev, &pwm[i].dev_attr); 1218 } 1219 sysfs_remove_group(&dev->kobj, &pc8736x_therm_group); 1220 sysfs_remove_group(&dev->kobj, &pc8736x_vin_group); 1221 } 1222 1223 static int pc87360_probe(struct platform_device *pdev) 1224 { 1225 int i; 1226 struct pc87360_data *data; 1227 int err = 0; 1228 const char *name; 1229 int use_thermistors = 0; 1230 struct device *dev = &pdev->dev; 1231 1232 data = devm_kzalloc(dev, sizeof(struct pc87360_data), GFP_KERNEL); 1233 if (!data) 1234 return -ENOMEM; 1235 1236 switch (devid) { 1237 default: 1238 name = "pc87360"; 1239 data->fannr = 2; 1240 break; 1241 case 0xe8: 1242 name = "pc87363"; 1243 data->fannr = 2; 1244 break; 1245 case 0xe4: 1246 name = "pc87364"; 1247 data->fannr = 3; 1248 break; 1249 case 0xe5: 1250 name = "pc87365"; 1251 data->fannr = extra_isa[0] ? 3 : 0; 1252 data->innr = extra_isa[1] ? 11 : 0; 1253 data->tempnr = extra_isa[2] ? 2 : 0; 1254 break; 1255 case 0xe9: 1256 name = "pc87366"; 1257 data->fannr = extra_isa[0] ? 3 : 0; 1258 data->innr = extra_isa[1] ? 14 : 0; 1259 data->tempnr = extra_isa[2] ? 3 : 0; 1260 break; 1261 } 1262 1263 data->name = name; 1264 mutex_init(&data->lock); 1265 mutex_init(&data->update_lock); 1266 platform_set_drvdata(pdev, data); 1267 1268 for (i = 0; i < LDNI_MAX; i++) { 1269 data->address[i] = extra_isa[i]; 1270 if (data->address[i] 1271 && !devm_request_region(dev, extra_isa[i], PC87360_EXTENT, 1272 pc87360_driver.driver.name)) { 1273 dev_err(dev, 1274 "Region 0x%x-0x%x already in use!\n", 1275 extra_isa[i], extra_isa[i]+PC87360_EXTENT-1); 1276 return -EBUSY; 1277 } 1278 } 1279 1280 /* Retrieve the fans configuration from Super-I/O space */ 1281 if (data->fannr) 1282 data->fan_conf = confreg[0] | (confreg[1] << 8); 1283 1284 /* 1285 * Use the correct reference voltage 1286 * Unless both the VLM and the TMS logical devices agree to 1287 * use an external Vref, the internal one is used. 1288 */ 1289 if (data->innr) { 1290 i = pc87360_read_value(data, LD_IN, NO_BANK, 1291 PC87365_REG_IN_CONFIG); 1292 if (data->tempnr) { 1293 i &= pc87360_read_value(data, LD_TEMP, NO_BANK, 1294 PC87365_REG_TEMP_CONFIG); 1295 } 1296 data->in_vref = (i&0x02) ? 3025 : 2966; 1297 dev_dbg(dev, "Using %s reference voltage\n", 1298 (i&0x02) ? "external" : "internal"); 1299 1300 data->vid_conf = confreg[3]; 1301 data->vrm = vid_which_vrm(); 1302 } 1303 1304 /* Fan clock dividers may be needed before any data is read */ 1305 for (i = 0; i < data->fannr; i++) { 1306 if (FAN_CONFIG_MONITOR(data->fan_conf, i)) 1307 data->fan_status[i] = pc87360_read_value(data, 1308 LD_FAN, NO_BANK, 1309 PC87360_REG_FAN_STATUS(i)); 1310 } 1311 1312 if (init > 0) { 1313 if (devid == 0xe9 && data->address[1]) /* PC87366 */ 1314 use_thermistors = confreg[2] & 0x40; 1315 1316 pc87360_init_device(pdev, use_thermistors); 1317 } 1318 1319 /* Register all-or-nothing sysfs groups */ 1320 1321 if (data->innr) { 1322 err = sysfs_create_group(&dev->kobj, &pc8736x_vin_group); 1323 if (err) 1324 goto error; 1325 } 1326 1327 if (data->innr == 14) { 1328 err = sysfs_create_group(&dev->kobj, &pc8736x_therm_group); 1329 if (err) 1330 goto error; 1331 } 1332 1333 /* create device attr-files for varying sysfs groups */ 1334 1335 if (data->tempnr) { 1336 for (i = 0; i < data->tempnr; i++) { 1337 err = sysfs_create_group(&dev->kobj, 1338 &pc8736x_temp_attr_group[i]); 1339 if (err) 1340 goto error; 1341 } 1342 err = device_create_file(dev, &dev_attr_alarms_temp); 1343 if (err) 1344 goto error; 1345 } 1346 1347 for (i = 0; i < data->fannr; i++) { 1348 if (FAN_CONFIG_MONITOR(data->fan_conf, i)) { 1349 err = sysfs_create_group(&dev->kobj, 1350 &pc8736x_fan_attr_group[i]); 1351 if (err) 1352 goto error; 1353 } 1354 if (FAN_CONFIG_CONTROL(data->fan_conf, i)) { 1355 err = device_create_file(dev, &pwm[i].dev_attr); 1356 if (err) 1357 goto error; 1358 } 1359 } 1360 1361 err = device_create_file(dev, &dev_attr_name); 1362 if (err) 1363 goto error; 1364 1365 data->hwmon_dev = hwmon_device_register(dev); 1366 if (IS_ERR(data->hwmon_dev)) { 1367 err = PTR_ERR(data->hwmon_dev); 1368 goto error; 1369 } 1370 return 0; 1371 1372 error: 1373 pc87360_remove_files(dev); 1374 return err; 1375 } 1376 1377 static int pc87360_remove(struct platform_device *pdev) 1378 { 1379 struct pc87360_data *data = platform_get_drvdata(pdev); 1380 1381 hwmon_device_unregister(data->hwmon_dev); 1382 pc87360_remove_files(&pdev->dev); 1383 1384 return 0; 1385 } 1386 1387 /* 1388 * ldi is the logical device index 1389 * bank is for voltages and temperatures only 1390 */ 1391 static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank, 1392 u8 reg) 1393 { 1394 int res; 1395 1396 mutex_lock(&(data->lock)); 1397 if (bank != NO_BANK) 1398 outb_p(bank, data->address[ldi] + PC87365_REG_BANK); 1399 res = inb_p(data->address[ldi] + reg); 1400 mutex_unlock(&(data->lock)); 1401 1402 return res; 1403 } 1404 1405 static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank, 1406 u8 reg, u8 value) 1407 { 1408 mutex_lock(&(data->lock)); 1409 if (bank != NO_BANK) 1410 outb_p(bank, data->address[ldi] + PC87365_REG_BANK); 1411 outb_p(value, data->address[ldi] + reg); 1412 mutex_unlock(&(data->lock)); 1413 } 1414 1415 /* (temp & vin) channel conversion status register flags (pdf sec.11.5.12) */ 1416 #define CHAN_CNVRTD 0x80 /* new data ready */ 1417 #define CHAN_ENA 0x01 /* enabled channel (temp or vin) */ 1418 #define CHAN_ALM_ENA 0x10 /* propagate to alarms-reg ?? (chk val!) */ 1419 #define CHAN_READY (CHAN_ENA|CHAN_CNVRTD) /* sample ready mask */ 1420 1421 #define TEMP_OTS_OE 0x20 /* OTS Output Enable */ 1422 #define VIN_RW1C_MASK (CHAN_READY|CHAN_ALM_MAX|CHAN_ALM_MIN) /* 0x87 */ 1423 #define TEMP_RW1C_MASK (VIN_RW1C_MASK|TEMP_ALM_CRIT|TEMP_FAULT) /* 0xCF */ 1424 1425 static void pc87360_init_device(struct platform_device *pdev, 1426 int use_thermistors) 1427 { 1428 struct pc87360_data *data = platform_get_drvdata(pdev); 1429 int i, nr; 1430 const u8 init_in[14] = { 2, 2, 2, 2, 2, 2, 2, 1, 1, 3, 1, 2, 2, 2 }; 1431 const u8 init_temp[3] = { 2, 2, 1 }; 1432 u8 reg; 1433 1434 if (init >= 2 && data->innr) { 1435 reg = pc87360_read_value(data, LD_IN, NO_BANK, 1436 PC87365_REG_IN_CONVRATE); 1437 dev_info(&pdev->dev, 1438 "VLM conversion set to 1s period, 160us delay\n"); 1439 pc87360_write_value(data, LD_IN, NO_BANK, 1440 PC87365_REG_IN_CONVRATE, 1441 (reg & 0xC0) | 0x11); 1442 } 1443 1444 nr = data->innr < 11 ? data->innr : 11; 1445 for (i = 0; i < nr; i++) { 1446 reg = pc87360_read_value(data, LD_IN, i, 1447 PC87365_REG_IN_STATUS); 1448 dev_dbg(&pdev->dev, "bios in%d status:0x%02x\n", i, reg); 1449 if (init >= init_in[i]) { 1450 /* Forcibly enable voltage channel */ 1451 if (!(reg & CHAN_ENA)) { 1452 dev_dbg(&pdev->dev, "Forcibly enabling in%d\n", 1453 i); 1454 pc87360_write_value(data, LD_IN, i, 1455 PC87365_REG_IN_STATUS, 1456 (reg & 0x68) | 0x87); 1457 } 1458 } 1459 } 1460 1461 /* 1462 * We can't blindly trust the Super-I/O space configuration bit, 1463 * most BIOS won't set it properly 1464 */ 1465 dev_dbg(&pdev->dev, "bios thermistors:%d\n", use_thermistors); 1466 for (i = 11; i < data->innr; i++) { 1467 reg = pc87360_read_value(data, LD_IN, i, 1468 PC87365_REG_TEMP_STATUS); 1469 use_thermistors = use_thermistors || (reg & CHAN_ENA); 1470 /* thermistors are temp[4-6], measured on vin[11-14] */ 1471 dev_dbg(&pdev->dev, "bios temp%d_status:0x%02x\n", i-7, reg); 1472 } 1473 dev_dbg(&pdev->dev, "using thermistors:%d\n", use_thermistors); 1474 1475 i = use_thermistors ? 2 : 0; 1476 for (; i < data->tempnr; i++) { 1477 reg = pc87360_read_value(data, LD_TEMP, i, 1478 PC87365_REG_TEMP_STATUS); 1479 dev_dbg(&pdev->dev, "bios temp%d_status:0x%02x\n", i + 1, reg); 1480 if (init >= init_temp[i]) { 1481 /* Forcibly enable temperature channel */ 1482 if (!(reg & CHAN_ENA)) { 1483 dev_dbg(&pdev->dev, 1484 "Forcibly enabling temp%d\n", i + 1); 1485 pc87360_write_value(data, LD_TEMP, i, 1486 PC87365_REG_TEMP_STATUS, 1487 0xCF); 1488 } 1489 } 1490 } 1491 1492 if (use_thermistors) { 1493 for (i = 11; i < data->innr; i++) { 1494 if (init >= init_in[i]) { 1495 /* 1496 * The pin may already be used by thermal 1497 * diodes 1498 */ 1499 reg = pc87360_read_value(data, LD_TEMP, 1500 (i - 11) / 2, PC87365_REG_TEMP_STATUS); 1501 if (reg & CHAN_ENA) { 1502 dev_dbg(&pdev->dev, 1503 "Skipping temp%d, pin already in use by temp%d\n", 1504 i - 7, (i - 11) / 2); 1505 continue; 1506 } 1507 1508 /* Forcibly enable thermistor channel */ 1509 reg = pc87360_read_value(data, LD_IN, i, 1510 PC87365_REG_IN_STATUS); 1511 if (!(reg & CHAN_ENA)) { 1512 dev_dbg(&pdev->dev, 1513 "Forcibly enabling temp%d\n", 1514 i - 7); 1515 pc87360_write_value(data, LD_IN, i, 1516 PC87365_REG_TEMP_STATUS, 1517 (reg & 0x60) | 0x8F); 1518 } 1519 } 1520 } 1521 } 1522 1523 if (data->innr) { 1524 reg = pc87360_read_value(data, LD_IN, NO_BANK, 1525 PC87365_REG_IN_CONFIG); 1526 dev_dbg(&pdev->dev, "bios vin-cfg:0x%02x\n", reg); 1527 if (reg & CHAN_ENA) { 1528 dev_dbg(&pdev->dev, 1529 "Forcibly enabling monitoring (VLM)\n"); 1530 pc87360_write_value(data, LD_IN, NO_BANK, 1531 PC87365_REG_IN_CONFIG, 1532 reg & 0xFE); 1533 } 1534 } 1535 1536 if (data->tempnr) { 1537 reg = pc87360_read_value(data, LD_TEMP, NO_BANK, 1538 PC87365_REG_TEMP_CONFIG); 1539 dev_dbg(&pdev->dev, "bios temp-cfg:0x%02x\n", reg); 1540 if (reg & CHAN_ENA) { 1541 dev_dbg(&pdev->dev, 1542 "Forcibly enabling monitoring (TMS)\n"); 1543 pc87360_write_value(data, LD_TEMP, NO_BANK, 1544 PC87365_REG_TEMP_CONFIG, 1545 reg & 0xFE); 1546 } 1547 1548 if (init >= 2) { 1549 /* Chip config as documented by National Semi. */ 1550 pc87360_write_value(data, LD_TEMP, 0xF, 0xA, 0x08); 1551 /* 1552 * We voluntarily omit the bank here, in case the 1553 * sequence itself matters. It shouldn't be a problem, 1554 * since nobody else is supposed to access the 1555 * device at that point. 1556 */ 1557 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xB, 0x04); 1558 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xC, 0x35); 1559 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xD, 0x05); 1560 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xE, 0x05); 1561 } 1562 } 1563 } 1564 1565 static void pc87360_autodiv(struct device *dev, int nr) 1566 { 1567 struct pc87360_data *data = dev_get_drvdata(dev); 1568 u8 old_min = data->fan_min[nr]; 1569 1570 /* Increase clock divider if needed and possible */ 1571 if ((data->fan_status[nr] & 0x04) /* overflow flag */ 1572 || (data->fan[nr] >= 224)) { /* next to overflow */ 1573 if ((data->fan_status[nr] & 0x60) != 0x60) { 1574 data->fan_status[nr] += 0x20; 1575 data->fan_min[nr] >>= 1; 1576 data->fan[nr] >>= 1; 1577 dev_dbg(dev, 1578 "Increasing clock divider to %d for fan %d\n", 1579 FAN_DIV_FROM_REG(data->fan_status[nr]), nr + 1); 1580 } 1581 } else { 1582 /* Decrease clock divider if possible */ 1583 while (!(data->fan_min[nr] & 0x80) /* min "nails" divider */ 1584 && data->fan[nr] < 85 /* bad accuracy */ 1585 && (data->fan_status[nr] & 0x60) != 0x00) { 1586 data->fan_status[nr] -= 0x20; 1587 data->fan_min[nr] <<= 1; 1588 data->fan[nr] <<= 1; 1589 dev_dbg(dev, 1590 "Decreasing clock divider to %d for fan %d\n", 1591 FAN_DIV_FROM_REG(data->fan_status[nr]), 1592 nr + 1); 1593 } 1594 } 1595 1596 /* Write new fan min if it changed */ 1597 if (old_min != data->fan_min[nr]) { 1598 pc87360_write_value(data, LD_FAN, NO_BANK, 1599 PC87360_REG_FAN_MIN(nr), 1600 data->fan_min[nr]); 1601 } 1602 } 1603 1604 static struct pc87360_data *pc87360_update_device(struct device *dev) 1605 { 1606 struct pc87360_data *data = dev_get_drvdata(dev); 1607 u8 i; 1608 1609 mutex_lock(&data->update_lock); 1610 1611 if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) { 1612 dev_dbg(dev, "Data update\n"); 1613 1614 /* Fans */ 1615 for (i = 0; i < data->fannr; i++) { 1616 if (FAN_CONFIG_MONITOR(data->fan_conf, i)) { 1617 data->fan_status[i] = 1618 pc87360_read_value(data, LD_FAN, 1619 NO_BANK, PC87360_REG_FAN_STATUS(i)); 1620 data->fan[i] = pc87360_read_value(data, LD_FAN, 1621 NO_BANK, PC87360_REG_FAN(i)); 1622 data->fan_min[i] = pc87360_read_value(data, 1623 LD_FAN, NO_BANK, 1624 PC87360_REG_FAN_MIN(i)); 1625 /* Change clock divider if needed */ 1626 pc87360_autodiv(dev, i); 1627 /* Clear bits and write new divider */ 1628 pc87360_write_value(data, LD_FAN, NO_BANK, 1629 PC87360_REG_FAN_STATUS(i), 1630 data->fan_status[i]); 1631 } 1632 if (FAN_CONFIG_CONTROL(data->fan_conf, i)) 1633 data->pwm[i] = pc87360_read_value(data, LD_FAN, 1634 NO_BANK, PC87360_REG_PWM(i)); 1635 } 1636 1637 /* Voltages */ 1638 for (i = 0; i < data->innr; i++) { 1639 data->in_status[i] = pc87360_read_value(data, LD_IN, i, 1640 PC87365_REG_IN_STATUS); 1641 /* Clear bits */ 1642 pc87360_write_value(data, LD_IN, i, 1643 PC87365_REG_IN_STATUS, 1644 data->in_status[i]); 1645 if ((data->in_status[i] & CHAN_READY) == CHAN_READY) { 1646 data->in[i] = pc87360_read_value(data, LD_IN, 1647 i, PC87365_REG_IN); 1648 } 1649 if (data->in_status[i] & CHAN_ENA) { 1650 data->in_min[i] = pc87360_read_value(data, 1651 LD_IN, i, 1652 PC87365_REG_IN_MIN); 1653 data->in_max[i] = pc87360_read_value(data, 1654 LD_IN, i, 1655 PC87365_REG_IN_MAX); 1656 if (i >= 11) 1657 data->in_crit[i-11] = 1658 pc87360_read_value(data, LD_IN, 1659 i, PC87365_REG_TEMP_CRIT); 1660 } 1661 } 1662 if (data->innr) { 1663 data->in_alarms = pc87360_read_value(data, LD_IN, 1664 NO_BANK, PC87365_REG_IN_ALARMS1) 1665 | ((pc87360_read_value(data, LD_IN, 1666 NO_BANK, PC87365_REG_IN_ALARMS2) 1667 & 0x07) << 8); 1668 data->vid = (data->vid_conf & 0xE0) ? 1669 pc87360_read_value(data, LD_IN, 1670 NO_BANK, PC87365_REG_VID) : 0x1F; 1671 } 1672 1673 /* Temperatures */ 1674 for (i = 0; i < data->tempnr; i++) { 1675 data->temp_status[i] = pc87360_read_value(data, 1676 LD_TEMP, i, 1677 PC87365_REG_TEMP_STATUS); 1678 /* Clear bits */ 1679 pc87360_write_value(data, LD_TEMP, i, 1680 PC87365_REG_TEMP_STATUS, 1681 data->temp_status[i]); 1682 if ((data->temp_status[i] & CHAN_READY) == CHAN_READY) { 1683 data->temp[i] = pc87360_read_value(data, 1684 LD_TEMP, i, 1685 PC87365_REG_TEMP); 1686 } 1687 if (data->temp_status[i] & CHAN_ENA) { 1688 data->temp_min[i] = pc87360_read_value(data, 1689 LD_TEMP, i, 1690 PC87365_REG_TEMP_MIN); 1691 data->temp_max[i] = pc87360_read_value(data, 1692 LD_TEMP, i, 1693 PC87365_REG_TEMP_MAX); 1694 data->temp_crit[i] = pc87360_read_value(data, 1695 LD_TEMP, i, 1696 PC87365_REG_TEMP_CRIT); 1697 } 1698 } 1699 if (data->tempnr) { 1700 data->temp_alarms = pc87360_read_value(data, LD_TEMP, 1701 NO_BANK, PC87365_REG_TEMP_ALARMS) 1702 & 0x3F; 1703 } 1704 1705 data->last_updated = jiffies; 1706 data->valid = 1; 1707 } 1708 1709 mutex_unlock(&data->update_lock); 1710 1711 return data; 1712 } 1713 1714 static int __init pc87360_device_add(unsigned short address) 1715 { 1716 struct resource res[3]; 1717 int err, i, res_count; 1718 1719 pdev = platform_device_alloc("pc87360", address); 1720 if (!pdev) { 1721 err = -ENOMEM; 1722 pr_err("Device allocation failed\n"); 1723 goto exit; 1724 } 1725 1726 memset(res, 0, 3 * sizeof(struct resource)); 1727 res_count = 0; 1728 for (i = 0; i < 3; i++) { 1729 if (!extra_isa[i]) 1730 continue; 1731 res[res_count].start = extra_isa[i]; 1732 res[res_count].end = extra_isa[i] + PC87360_EXTENT - 1; 1733 res[res_count].name = "pc87360", 1734 res[res_count].flags = IORESOURCE_IO, 1735 1736 err = acpi_check_resource_conflict(&res[res_count]); 1737 if (err) 1738 goto exit_device_put; 1739 1740 res_count++; 1741 } 1742 1743 err = platform_device_add_resources(pdev, res, res_count); 1744 if (err) { 1745 pr_err("Device resources addition failed (%d)\n", err); 1746 goto exit_device_put; 1747 } 1748 1749 err = platform_device_add(pdev); 1750 if (err) { 1751 pr_err("Device addition failed (%d)\n", err); 1752 goto exit_device_put; 1753 } 1754 1755 return 0; 1756 1757 exit_device_put: 1758 platform_device_put(pdev); 1759 exit: 1760 return err; 1761 } 1762 1763 static int __init pc87360_init(void) 1764 { 1765 int err, i; 1766 unsigned short address = 0; 1767 1768 if (pc87360_find(0x2e, &devid, extra_isa) 1769 && pc87360_find(0x4e, &devid, extra_isa)) { 1770 pr_warn("PC8736x not detected, module not inserted\n"); 1771 return -ENODEV; 1772 } 1773 1774 /* Arbitrarily pick one of the addresses */ 1775 for (i = 0; i < 3; i++) { 1776 if (extra_isa[i] != 0x0000) { 1777 address = extra_isa[i]; 1778 break; 1779 } 1780 } 1781 1782 if (address == 0x0000) { 1783 pr_warn("No active logical device, module not inserted\n"); 1784 return -ENODEV; 1785 } 1786 1787 err = platform_driver_register(&pc87360_driver); 1788 if (err) 1789 goto exit; 1790 1791 /* Sets global pdev as a side effect */ 1792 err = pc87360_device_add(address); 1793 if (err) 1794 goto exit_driver; 1795 1796 return 0; 1797 1798 exit_driver: 1799 platform_driver_unregister(&pc87360_driver); 1800 exit: 1801 return err; 1802 } 1803 1804 static void __exit pc87360_exit(void) 1805 { 1806 platform_device_unregister(pdev); 1807 platform_driver_unregister(&pc87360_driver); 1808 } 1809 1810 1811 MODULE_AUTHOR("Jean Delvare <jdelvare@suse.de>"); 1812 MODULE_DESCRIPTION("PC8736x hardware monitor"); 1813 MODULE_LICENSE("GPL"); 1814 1815 module_init(pc87360_init); 1816 module_exit(pc87360_exit); 1817