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 if (val > 255) 619 return -EINVAL; 620 621 data->vrm = val; 622 return count; 623 } 624 static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm); 625 626 static ssize_t show_in_alarms(struct device *dev, 627 struct device_attribute *attr, char *buf) 628 { 629 struct pc87360_data *data = pc87360_update_device(dev); 630 return sprintf(buf, "%u\n", data->in_alarms); 631 } 632 static DEVICE_ATTR(alarms_in, S_IRUGO, show_in_alarms, NULL); 633 634 static struct attribute *pc8736x_vin_attr_array[] = { 635 VIN_UNIT_ATTRS(0), 636 VIN_UNIT_ATTRS(1), 637 VIN_UNIT_ATTRS(2), 638 VIN_UNIT_ATTRS(3), 639 VIN_UNIT_ATTRS(4), 640 VIN_UNIT_ATTRS(5), 641 VIN_UNIT_ATTRS(6), 642 VIN_UNIT_ATTRS(7), 643 VIN_UNIT_ATTRS(8), 644 VIN_UNIT_ATTRS(9), 645 VIN_UNIT_ATTRS(10), 646 &dev_attr_cpu0_vid.attr, 647 &dev_attr_vrm.attr, 648 &dev_attr_alarms_in.attr, 649 NULL 650 }; 651 static const struct attribute_group pc8736x_vin_group = { 652 .attrs = pc8736x_vin_attr_array, 653 }; 654 655 static ssize_t show_therm_input(struct device *dev, 656 struct device_attribute *devattr, char *buf) 657 { 658 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 659 struct pc87360_data *data = pc87360_update_device(dev); 660 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index], 661 data->in_vref)); 662 } 663 static ssize_t show_therm_min(struct device *dev, 664 struct device_attribute *devattr, char *buf) 665 { 666 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 667 struct pc87360_data *data = pc87360_update_device(dev); 668 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index], 669 data->in_vref)); 670 } 671 static ssize_t show_therm_max(struct device *dev, 672 struct device_attribute *devattr, char *buf) 673 { 674 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 675 struct pc87360_data *data = pc87360_update_device(dev); 676 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index], 677 data->in_vref)); 678 } 679 static ssize_t show_therm_crit(struct device *dev, 680 struct device_attribute *devattr, char *buf) 681 { 682 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 683 struct pc87360_data *data = pc87360_update_device(dev); 684 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_crit[attr->index-11], 685 data->in_vref)); 686 } 687 static ssize_t show_therm_status(struct device *dev, 688 struct device_attribute *devattr, char *buf) 689 { 690 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 691 struct pc87360_data *data = pc87360_update_device(dev); 692 return sprintf(buf, "%u\n", data->in_status[attr->index]); 693 } 694 695 static ssize_t set_therm_min(struct device *dev, 696 struct device_attribute *devattr, 697 const char *buf, size_t count) 698 { 699 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 700 struct pc87360_data *data = dev_get_drvdata(dev); 701 long val; 702 int err; 703 704 err = kstrtol(buf, 10, &val); 705 if (err) 706 return err; 707 708 mutex_lock(&data->update_lock); 709 data->in_min[attr->index] = IN_TO_REG(val, data->in_vref); 710 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MIN, 711 data->in_min[attr->index]); 712 mutex_unlock(&data->update_lock); 713 return count; 714 } 715 716 static ssize_t set_therm_max(struct device *dev, 717 struct device_attribute *devattr, 718 const char *buf, size_t count) 719 { 720 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 721 struct pc87360_data *data = dev_get_drvdata(dev); 722 long val; 723 int err; 724 725 err = kstrtol(buf, 10, &val); 726 if (err) 727 return err; 728 729 mutex_lock(&data->update_lock); 730 data->in_max[attr->index] = IN_TO_REG(val, data->in_vref); 731 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MAX, 732 data->in_max[attr->index]); 733 mutex_unlock(&data->update_lock); 734 return count; 735 } 736 static ssize_t set_therm_crit(struct device *dev, 737 struct device_attribute *devattr, 738 const char *buf, size_t count) 739 { 740 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 741 struct pc87360_data *data = dev_get_drvdata(dev); 742 long val; 743 int err; 744 745 err = kstrtol(buf, 10, &val); 746 if (err) 747 return err; 748 749 mutex_lock(&data->update_lock); 750 data->in_crit[attr->index-11] = IN_TO_REG(val, data->in_vref); 751 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_CRIT, 752 data->in_crit[attr->index-11]); 753 mutex_unlock(&data->update_lock); 754 return count; 755 } 756 757 /* 758 * the +11 term below reflects the fact that VLM units 11,12,13 are 759 * used in the chip to measure voltage across the thermistors 760 */ 761 static struct sensor_device_attribute therm_input[] = { 762 SENSOR_ATTR(temp4_input, S_IRUGO, show_therm_input, NULL, 0 + 11), 763 SENSOR_ATTR(temp5_input, S_IRUGO, show_therm_input, NULL, 1 + 11), 764 SENSOR_ATTR(temp6_input, S_IRUGO, show_therm_input, NULL, 2 + 11), 765 }; 766 static struct sensor_device_attribute therm_status[] = { 767 SENSOR_ATTR(temp4_status, S_IRUGO, show_therm_status, NULL, 0 + 11), 768 SENSOR_ATTR(temp5_status, S_IRUGO, show_therm_status, NULL, 1 + 11), 769 SENSOR_ATTR(temp6_status, S_IRUGO, show_therm_status, NULL, 2 + 11), 770 }; 771 static struct sensor_device_attribute therm_min[] = { 772 SENSOR_ATTR(temp4_min, S_IRUGO | S_IWUSR, 773 show_therm_min, set_therm_min, 0 + 11), 774 SENSOR_ATTR(temp5_min, S_IRUGO | S_IWUSR, 775 show_therm_min, set_therm_min, 1 + 11), 776 SENSOR_ATTR(temp6_min, S_IRUGO | S_IWUSR, 777 show_therm_min, set_therm_min, 2 + 11), 778 }; 779 static struct sensor_device_attribute therm_max[] = { 780 SENSOR_ATTR(temp4_max, S_IRUGO | S_IWUSR, 781 show_therm_max, set_therm_max, 0 + 11), 782 SENSOR_ATTR(temp5_max, S_IRUGO | S_IWUSR, 783 show_therm_max, set_therm_max, 1 + 11), 784 SENSOR_ATTR(temp6_max, S_IRUGO | S_IWUSR, 785 show_therm_max, set_therm_max, 2 + 11), 786 }; 787 static struct sensor_device_attribute therm_crit[] = { 788 SENSOR_ATTR(temp4_crit, S_IRUGO | S_IWUSR, 789 show_therm_crit, set_therm_crit, 0 + 11), 790 SENSOR_ATTR(temp5_crit, S_IRUGO | S_IWUSR, 791 show_therm_crit, set_therm_crit, 1 + 11), 792 SENSOR_ATTR(temp6_crit, S_IRUGO | S_IWUSR, 793 show_therm_crit, set_therm_crit, 2 + 11), 794 }; 795 796 /* 797 * show_therm_min/max_alarm() reads data from the per-channel voltage 798 * status register (sec 11.5.12) 799 */ 800 801 static ssize_t show_therm_min_alarm(struct device *dev, 802 struct device_attribute *devattr, char *buf) 803 { 804 struct pc87360_data *data = pc87360_update_device(dev); 805 unsigned nr = to_sensor_dev_attr(devattr)->index; 806 807 return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MIN)); 808 } 809 static ssize_t show_therm_max_alarm(struct device *dev, 810 struct device_attribute *devattr, char *buf) 811 { 812 struct pc87360_data *data = pc87360_update_device(dev); 813 unsigned nr = to_sensor_dev_attr(devattr)->index; 814 815 return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MAX)); 816 } 817 static ssize_t show_therm_crit_alarm(struct device *dev, 818 struct device_attribute *devattr, char *buf) 819 { 820 struct pc87360_data *data = pc87360_update_device(dev); 821 unsigned nr = to_sensor_dev_attr(devattr)->index; 822 823 return sprintf(buf, "%u\n", !!(data->in_status[nr] & TEMP_ALM_CRIT)); 824 } 825 826 static struct sensor_device_attribute therm_min_alarm[] = { 827 SENSOR_ATTR(temp4_min_alarm, S_IRUGO, 828 show_therm_min_alarm, NULL, 0 + 11), 829 SENSOR_ATTR(temp5_min_alarm, S_IRUGO, 830 show_therm_min_alarm, NULL, 1 + 11), 831 SENSOR_ATTR(temp6_min_alarm, S_IRUGO, 832 show_therm_min_alarm, NULL, 2 + 11), 833 }; 834 static struct sensor_device_attribute therm_max_alarm[] = { 835 SENSOR_ATTR(temp4_max_alarm, S_IRUGO, 836 show_therm_max_alarm, NULL, 0 + 11), 837 SENSOR_ATTR(temp5_max_alarm, S_IRUGO, 838 show_therm_max_alarm, NULL, 1 + 11), 839 SENSOR_ATTR(temp6_max_alarm, S_IRUGO, 840 show_therm_max_alarm, NULL, 2 + 11), 841 }; 842 static struct sensor_device_attribute therm_crit_alarm[] = { 843 SENSOR_ATTR(temp4_crit_alarm, S_IRUGO, 844 show_therm_crit_alarm, NULL, 0 + 11), 845 SENSOR_ATTR(temp5_crit_alarm, S_IRUGO, 846 show_therm_crit_alarm, NULL, 1 + 11), 847 SENSOR_ATTR(temp6_crit_alarm, S_IRUGO, 848 show_therm_crit_alarm, NULL, 2 + 11), 849 }; 850 851 #define THERM_UNIT_ATTRS(X) \ 852 &therm_input[X].dev_attr.attr, \ 853 &therm_status[X].dev_attr.attr, \ 854 &therm_min[X].dev_attr.attr, \ 855 &therm_max[X].dev_attr.attr, \ 856 &therm_crit[X].dev_attr.attr, \ 857 &therm_min_alarm[X].dev_attr.attr, \ 858 &therm_max_alarm[X].dev_attr.attr, \ 859 &therm_crit_alarm[X].dev_attr.attr 860 861 static struct attribute *pc8736x_therm_attr_array[] = { 862 THERM_UNIT_ATTRS(0), 863 THERM_UNIT_ATTRS(1), 864 THERM_UNIT_ATTRS(2), 865 NULL 866 }; 867 static const struct attribute_group pc8736x_therm_group = { 868 .attrs = pc8736x_therm_attr_array, 869 }; 870 871 static ssize_t show_temp_input(struct device *dev, 872 struct device_attribute *devattr, char *buf) 873 { 874 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 875 struct pc87360_data *data = pc87360_update_device(dev); 876 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[attr->index])); 877 } 878 879 static ssize_t show_temp_min(struct device *dev, 880 struct device_attribute *devattr, char *buf) 881 { 882 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 883 struct pc87360_data *data = pc87360_update_device(dev); 884 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[attr->index])); 885 } 886 887 static ssize_t show_temp_max(struct device *dev, 888 struct device_attribute *devattr, char *buf) 889 { 890 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 891 struct pc87360_data *data = pc87360_update_device(dev); 892 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[attr->index])); 893 } 894 895 static ssize_t show_temp_crit(struct device *dev, 896 struct device_attribute *devattr, char *buf) 897 { 898 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 899 struct pc87360_data *data = pc87360_update_device(dev); 900 return sprintf(buf, "%d\n", 901 TEMP_FROM_REG(data->temp_crit[attr->index])); 902 } 903 904 static ssize_t show_temp_status(struct device *dev, 905 struct device_attribute *devattr, char *buf) 906 { 907 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 908 struct pc87360_data *data = pc87360_update_device(dev); 909 return sprintf(buf, "%d\n", data->temp_status[attr->index]); 910 } 911 912 static ssize_t set_temp_min(struct device *dev, 913 struct device_attribute *devattr, 914 const char *buf, size_t count) 915 { 916 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 917 struct pc87360_data *data = dev_get_drvdata(dev); 918 long val; 919 int err; 920 921 err = kstrtol(buf, 10, &val); 922 if (err) 923 return err; 924 925 mutex_lock(&data->update_lock); 926 data->temp_min[attr->index] = TEMP_TO_REG(val); 927 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MIN, 928 data->temp_min[attr->index]); 929 mutex_unlock(&data->update_lock); 930 return count; 931 } 932 933 static ssize_t set_temp_max(struct device *dev, 934 struct device_attribute *devattr, 935 const char *buf, size_t count) 936 { 937 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 938 struct pc87360_data *data = dev_get_drvdata(dev); 939 long val; 940 int err; 941 942 err = kstrtol(buf, 10, &val); 943 if (err) 944 return err; 945 946 mutex_lock(&data->update_lock); 947 data->temp_max[attr->index] = TEMP_TO_REG(val); 948 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MAX, 949 data->temp_max[attr->index]); 950 mutex_unlock(&data->update_lock); 951 return count; 952 } 953 954 static ssize_t set_temp_crit(struct device *dev, 955 struct device_attribute *devattr, const char *buf, 956 size_t count) 957 { 958 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 959 struct pc87360_data *data = dev_get_drvdata(dev); 960 long val; 961 int err; 962 963 err = kstrtol(buf, 10, &val); 964 if (err) 965 return err; 966 967 mutex_lock(&data->update_lock); 968 data->temp_crit[attr->index] = TEMP_TO_REG(val); 969 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_CRIT, 970 data->temp_crit[attr->index]); 971 mutex_unlock(&data->update_lock); 972 return count; 973 } 974 975 static struct sensor_device_attribute temp_input[] = { 976 SENSOR_ATTR(temp1_input, S_IRUGO, show_temp_input, NULL, 0), 977 SENSOR_ATTR(temp2_input, S_IRUGO, show_temp_input, NULL, 1), 978 SENSOR_ATTR(temp3_input, S_IRUGO, show_temp_input, NULL, 2), 979 }; 980 static struct sensor_device_attribute temp_status[] = { 981 SENSOR_ATTR(temp1_status, S_IRUGO, show_temp_status, NULL, 0), 982 SENSOR_ATTR(temp2_status, S_IRUGO, show_temp_status, NULL, 1), 983 SENSOR_ATTR(temp3_status, S_IRUGO, show_temp_status, NULL, 2), 984 }; 985 static struct sensor_device_attribute temp_min[] = { 986 SENSOR_ATTR(temp1_min, S_IRUGO | S_IWUSR, 987 show_temp_min, set_temp_min, 0), 988 SENSOR_ATTR(temp2_min, S_IRUGO | S_IWUSR, 989 show_temp_min, set_temp_min, 1), 990 SENSOR_ATTR(temp3_min, S_IRUGO | S_IWUSR, 991 show_temp_min, set_temp_min, 2), 992 }; 993 static struct sensor_device_attribute temp_max[] = { 994 SENSOR_ATTR(temp1_max, S_IRUGO | S_IWUSR, 995 show_temp_max, set_temp_max, 0), 996 SENSOR_ATTR(temp2_max, S_IRUGO | S_IWUSR, 997 show_temp_max, set_temp_max, 1), 998 SENSOR_ATTR(temp3_max, S_IRUGO | S_IWUSR, 999 show_temp_max, set_temp_max, 2), 1000 }; 1001 static struct sensor_device_attribute temp_crit[] = { 1002 SENSOR_ATTR(temp1_crit, S_IRUGO | S_IWUSR, 1003 show_temp_crit, set_temp_crit, 0), 1004 SENSOR_ATTR(temp2_crit, S_IRUGO | S_IWUSR, 1005 show_temp_crit, set_temp_crit, 1), 1006 SENSOR_ATTR(temp3_crit, S_IRUGO | S_IWUSR, 1007 show_temp_crit, set_temp_crit, 2), 1008 }; 1009 1010 static ssize_t show_temp_alarms(struct device *dev, 1011 struct device_attribute *attr, char *buf) 1012 { 1013 struct pc87360_data *data = pc87360_update_device(dev); 1014 return sprintf(buf, "%u\n", data->temp_alarms); 1015 } 1016 1017 static DEVICE_ATTR(alarms_temp, S_IRUGO, show_temp_alarms, NULL); 1018 1019 /* 1020 * show_temp_min/max_alarm() reads data from the per-channel status 1021 * register (sec 12.3.7), not the temp event status registers (sec 1022 * 12.3.2) that show_temp_alarm() reads (via data->temp_alarms) 1023 */ 1024 1025 static ssize_t show_temp_min_alarm(struct device *dev, 1026 struct device_attribute *devattr, char *buf) 1027 { 1028 struct pc87360_data *data = pc87360_update_device(dev); 1029 unsigned nr = to_sensor_dev_attr(devattr)->index; 1030 1031 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & CHAN_ALM_MIN)); 1032 } 1033 1034 static ssize_t show_temp_max_alarm(struct device *dev, 1035 struct device_attribute *devattr, char *buf) 1036 { 1037 struct pc87360_data *data = pc87360_update_device(dev); 1038 unsigned nr = to_sensor_dev_attr(devattr)->index; 1039 1040 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & CHAN_ALM_MAX)); 1041 } 1042 1043 static ssize_t show_temp_crit_alarm(struct device *dev, 1044 struct device_attribute *devattr, char *buf) 1045 { 1046 struct pc87360_data *data = pc87360_update_device(dev); 1047 unsigned nr = to_sensor_dev_attr(devattr)->index; 1048 1049 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & TEMP_ALM_CRIT)); 1050 } 1051 1052 static struct sensor_device_attribute temp_min_alarm[] = { 1053 SENSOR_ATTR(temp1_min_alarm, S_IRUGO, show_temp_min_alarm, NULL, 0), 1054 SENSOR_ATTR(temp2_min_alarm, S_IRUGO, show_temp_min_alarm, NULL, 1), 1055 SENSOR_ATTR(temp3_min_alarm, S_IRUGO, show_temp_min_alarm, NULL, 2), 1056 }; 1057 1058 static struct sensor_device_attribute temp_max_alarm[] = { 1059 SENSOR_ATTR(temp1_max_alarm, S_IRUGO, show_temp_max_alarm, NULL, 0), 1060 SENSOR_ATTR(temp2_max_alarm, S_IRUGO, show_temp_max_alarm, NULL, 1), 1061 SENSOR_ATTR(temp3_max_alarm, S_IRUGO, show_temp_max_alarm, NULL, 2), 1062 }; 1063 1064 static struct sensor_device_attribute temp_crit_alarm[] = { 1065 SENSOR_ATTR(temp1_crit_alarm, S_IRUGO, show_temp_crit_alarm, NULL, 0), 1066 SENSOR_ATTR(temp2_crit_alarm, S_IRUGO, show_temp_crit_alarm, NULL, 1), 1067 SENSOR_ATTR(temp3_crit_alarm, S_IRUGO, show_temp_crit_alarm, NULL, 2), 1068 }; 1069 1070 #define TEMP_FAULT 0x40 /* open diode */ 1071 static ssize_t show_temp_fault(struct device *dev, 1072 struct device_attribute *devattr, char *buf) 1073 { 1074 struct pc87360_data *data = pc87360_update_device(dev); 1075 unsigned nr = to_sensor_dev_attr(devattr)->index; 1076 1077 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & TEMP_FAULT)); 1078 } 1079 static struct sensor_device_attribute temp_fault[] = { 1080 SENSOR_ATTR(temp1_fault, S_IRUGO, show_temp_fault, NULL, 0), 1081 SENSOR_ATTR(temp2_fault, S_IRUGO, show_temp_fault, NULL, 1), 1082 SENSOR_ATTR(temp3_fault, S_IRUGO, show_temp_fault, NULL, 2), 1083 }; 1084 1085 #define TEMP_UNIT_ATTRS(X) \ 1086 { &temp_input[X].dev_attr.attr, \ 1087 &temp_status[X].dev_attr.attr, \ 1088 &temp_min[X].dev_attr.attr, \ 1089 &temp_max[X].dev_attr.attr, \ 1090 &temp_crit[X].dev_attr.attr, \ 1091 &temp_min_alarm[X].dev_attr.attr, \ 1092 &temp_max_alarm[X].dev_attr.attr, \ 1093 &temp_crit_alarm[X].dev_attr.attr, \ 1094 &temp_fault[X].dev_attr.attr, \ 1095 NULL \ 1096 } 1097 1098 static struct attribute *pc8736x_temp_attr[][10] = { 1099 TEMP_UNIT_ATTRS(0), 1100 TEMP_UNIT_ATTRS(1), 1101 TEMP_UNIT_ATTRS(2) 1102 }; 1103 1104 static const struct attribute_group pc8736x_temp_attr_group[] = { 1105 { .attrs = pc8736x_temp_attr[0] }, 1106 { .attrs = pc8736x_temp_attr[1] }, 1107 { .attrs = pc8736x_temp_attr[2] } 1108 }; 1109 1110 static ssize_t show_name(struct device *dev, 1111 struct device_attribute *devattr, char *buf) 1112 { 1113 struct pc87360_data *data = dev_get_drvdata(dev); 1114 return sprintf(buf, "%s\n", data->name); 1115 } 1116 1117 static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); 1118 1119 /* 1120 * Device detection, registration and update 1121 */ 1122 1123 static int __init pc87360_find(int sioaddr, u8 *devid, 1124 unsigned short *addresses) 1125 { 1126 u16 val; 1127 int i; 1128 int nrdev; /* logical device count */ 1129 1130 /* No superio_enter */ 1131 1132 /* Identify device */ 1133 val = force_id ? force_id : superio_inb(sioaddr, DEVID); 1134 switch (val) { 1135 case 0xE1: /* PC87360 */ 1136 case 0xE8: /* PC87363 */ 1137 case 0xE4: /* PC87364 */ 1138 nrdev = 1; 1139 break; 1140 case 0xE5: /* PC87365 */ 1141 case 0xE9: /* PC87366 */ 1142 nrdev = 3; 1143 break; 1144 default: 1145 superio_exit(sioaddr); 1146 return -ENODEV; 1147 } 1148 /* Remember the device id */ 1149 *devid = val; 1150 1151 for (i = 0; i < nrdev; i++) { 1152 /* select logical device */ 1153 superio_outb(sioaddr, DEV, logdev[i]); 1154 1155 val = superio_inb(sioaddr, ACT); 1156 if (!(val & 0x01)) { 1157 pr_info("Device 0x%02x not activated\n", logdev[i]); 1158 continue; 1159 } 1160 1161 val = (superio_inb(sioaddr, BASE) << 8) 1162 | superio_inb(sioaddr, BASE + 1); 1163 if (!val) { 1164 pr_info("Base address not set for device 0x%02x\n", 1165 logdev[i]); 1166 continue; 1167 } 1168 1169 addresses[i] = val; 1170 1171 if (i == 0) { /* Fans */ 1172 confreg[0] = superio_inb(sioaddr, 0xF0); 1173 confreg[1] = superio_inb(sioaddr, 0xF1); 1174 1175 pr_debug("Fan %d: mon=%d ctrl=%d inv=%d\n", 1, 1176 (confreg[0] >> 2) & 1, (confreg[0] >> 3) & 1, 1177 (confreg[0] >> 4) & 1); 1178 pr_debug("Fan %d: mon=%d ctrl=%d inv=%d\n", 2, 1179 (confreg[0] >> 5) & 1, (confreg[0] >> 6) & 1, 1180 (confreg[0] >> 7) & 1); 1181 pr_debug("Fan %d: mon=%d ctrl=%d inv=%d\n", 3, 1182 confreg[1] & 1, (confreg[1] >> 1) & 1, 1183 (confreg[1] >> 2) & 1); 1184 } else if (i == 1) { /* Voltages */ 1185 /* Are we using thermistors? */ 1186 if (*devid == 0xE9) { /* PC87366 */ 1187 /* 1188 * These registers are not logical-device 1189 * specific, just that we won't need them if 1190 * we don't use the VLM device 1191 */ 1192 confreg[2] = superio_inb(sioaddr, 0x2B); 1193 confreg[3] = superio_inb(sioaddr, 0x25); 1194 1195 if (confreg[2] & 0x40) { 1196 pr_info("Using thermistors for temperature monitoring\n"); 1197 } 1198 if (confreg[3] & 0xE0) { 1199 pr_info("VID inputs routed (mode %u)\n", 1200 confreg[3] >> 5); 1201 } 1202 } 1203 } 1204 } 1205 1206 superio_exit(sioaddr); 1207 return 0; 1208 } 1209 1210 static void pc87360_remove_files(struct device *dev) 1211 { 1212 int i; 1213 1214 device_remove_file(dev, &dev_attr_name); 1215 device_remove_file(dev, &dev_attr_alarms_temp); 1216 for (i = 0; i < ARRAY_SIZE(pc8736x_temp_attr_group); i++) 1217 sysfs_remove_group(&dev->kobj, &pc8736x_temp_attr_group[i]); 1218 for (i = 0; i < ARRAY_SIZE(pc8736x_fan_attr_group); i++) { 1219 sysfs_remove_group(&pdev->dev.kobj, &pc8736x_fan_attr_group[i]); 1220 device_remove_file(dev, &pwm[i].dev_attr); 1221 } 1222 sysfs_remove_group(&dev->kobj, &pc8736x_therm_group); 1223 sysfs_remove_group(&dev->kobj, &pc8736x_vin_group); 1224 } 1225 1226 static int pc87360_probe(struct platform_device *pdev) 1227 { 1228 int i; 1229 struct pc87360_data *data; 1230 int err = 0; 1231 const char *name; 1232 int use_thermistors = 0; 1233 struct device *dev = &pdev->dev; 1234 1235 data = devm_kzalloc(dev, sizeof(struct pc87360_data), GFP_KERNEL); 1236 if (!data) 1237 return -ENOMEM; 1238 1239 switch (devid) { 1240 default: 1241 name = "pc87360"; 1242 data->fannr = 2; 1243 break; 1244 case 0xe8: 1245 name = "pc87363"; 1246 data->fannr = 2; 1247 break; 1248 case 0xe4: 1249 name = "pc87364"; 1250 data->fannr = 3; 1251 break; 1252 case 0xe5: 1253 name = "pc87365"; 1254 data->fannr = extra_isa[0] ? 3 : 0; 1255 data->innr = extra_isa[1] ? 11 : 0; 1256 data->tempnr = extra_isa[2] ? 2 : 0; 1257 break; 1258 case 0xe9: 1259 name = "pc87366"; 1260 data->fannr = extra_isa[0] ? 3 : 0; 1261 data->innr = extra_isa[1] ? 14 : 0; 1262 data->tempnr = extra_isa[2] ? 3 : 0; 1263 break; 1264 } 1265 1266 data->name = name; 1267 mutex_init(&data->lock); 1268 mutex_init(&data->update_lock); 1269 platform_set_drvdata(pdev, data); 1270 1271 for (i = 0; i < LDNI_MAX; i++) { 1272 data->address[i] = extra_isa[i]; 1273 if (data->address[i] 1274 && !devm_request_region(dev, extra_isa[i], PC87360_EXTENT, 1275 pc87360_driver.driver.name)) { 1276 dev_err(dev, 1277 "Region 0x%x-0x%x already in use!\n", 1278 extra_isa[i], extra_isa[i]+PC87360_EXTENT-1); 1279 return -EBUSY; 1280 } 1281 } 1282 1283 /* Retrieve the fans configuration from Super-I/O space */ 1284 if (data->fannr) 1285 data->fan_conf = confreg[0] | (confreg[1] << 8); 1286 1287 /* 1288 * Use the correct reference voltage 1289 * Unless both the VLM and the TMS logical devices agree to 1290 * use an external Vref, the internal one is used. 1291 */ 1292 if (data->innr) { 1293 i = pc87360_read_value(data, LD_IN, NO_BANK, 1294 PC87365_REG_IN_CONFIG); 1295 if (data->tempnr) { 1296 i &= pc87360_read_value(data, LD_TEMP, NO_BANK, 1297 PC87365_REG_TEMP_CONFIG); 1298 } 1299 data->in_vref = (i&0x02) ? 3025 : 2966; 1300 dev_dbg(dev, "Using %s reference voltage\n", 1301 (i&0x02) ? "external" : "internal"); 1302 1303 data->vid_conf = confreg[3]; 1304 data->vrm = vid_which_vrm(); 1305 } 1306 1307 /* Fan clock dividers may be needed before any data is read */ 1308 for (i = 0; i < data->fannr; i++) { 1309 if (FAN_CONFIG_MONITOR(data->fan_conf, i)) 1310 data->fan_status[i] = pc87360_read_value(data, 1311 LD_FAN, NO_BANK, 1312 PC87360_REG_FAN_STATUS(i)); 1313 } 1314 1315 if (init > 0) { 1316 if (devid == 0xe9 && data->address[1]) /* PC87366 */ 1317 use_thermistors = confreg[2] & 0x40; 1318 1319 pc87360_init_device(pdev, use_thermistors); 1320 } 1321 1322 /* Register all-or-nothing sysfs groups */ 1323 1324 if (data->innr) { 1325 err = sysfs_create_group(&dev->kobj, &pc8736x_vin_group); 1326 if (err) 1327 goto error; 1328 } 1329 1330 if (data->innr == 14) { 1331 err = sysfs_create_group(&dev->kobj, &pc8736x_therm_group); 1332 if (err) 1333 goto error; 1334 } 1335 1336 /* create device attr-files for varying sysfs groups */ 1337 1338 if (data->tempnr) { 1339 for (i = 0; i < data->tempnr; i++) { 1340 err = sysfs_create_group(&dev->kobj, 1341 &pc8736x_temp_attr_group[i]); 1342 if (err) 1343 goto error; 1344 } 1345 err = device_create_file(dev, &dev_attr_alarms_temp); 1346 if (err) 1347 goto error; 1348 } 1349 1350 for (i = 0; i < data->fannr; i++) { 1351 if (FAN_CONFIG_MONITOR(data->fan_conf, i)) { 1352 err = sysfs_create_group(&dev->kobj, 1353 &pc8736x_fan_attr_group[i]); 1354 if (err) 1355 goto error; 1356 } 1357 if (FAN_CONFIG_CONTROL(data->fan_conf, i)) { 1358 err = device_create_file(dev, &pwm[i].dev_attr); 1359 if (err) 1360 goto error; 1361 } 1362 } 1363 1364 err = device_create_file(dev, &dev_attr_name); 1365 if (err) 1366 goto error; 1367 1368 data->hwmon_dev = hwmon_device_register(dev); 1369 if (IS_ERR(data->hwmon_dev)) { 1370 err = PTR_ERR(data->hwmon_dev); 1371 goto error; 1372 } 1373 return 0; 1374 1375 error: 1376 pc87360_remove_files(dev); 1377 return err; 1378 } 1379 1380 static int pc87360_remove(struct platform_device *pdev) 1381 { 1382 struct pc87360_data *data = platform_get_drvdata(pdev); 1383 1384 hwmon_device_unregister(data->hwmon_dev); 1385 pc87360_remove_files(&pdev->dev); 1386 1387 return 0; 1388 } 1389 1390 /* 1391 * ldi is the logical device index 1392 * bank is for voltages and temperatures only 1393 */ 1394 static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank, 1395 u8 reg) 1396 { 1397 int res; 1398 1399 mutex_lock(&(data->lock)); 1400 if (bank != NO_BANK) 1401 outb_p(bank, data->address[ldi] + PC87365_REG_BANK); 1402 res = inb_p(data->address[ldi] + reg); 1403 mutex_unlock(&(data->lock)); 1404 1405 return res; 1406 } 1407 1408 static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank, 1409 u8 reg, u8 value) 1410 { 1411 mutex_lock(&(data->lock)); 1412 if (bank != NO_BANK) 1413 outb_p(bank, data->address[ldi] + PC87365_REG_BANK); 1414 outb_p(value, data->address[ldi] + reg); 1415 mutex_unlock(&(data->lock)); 1416 } 1417 1418 /* (temp & vin) channel conversion status register flags (pdf sec.11.5.12) */ 1419 #define CHAN_CNVRTD 0x80 /* new data ready */ 1420 #define CHAN_ENA 0x01 /* enabled channel (temp or vin) */ 1421 #define CHAN_ALM_ENA 0x10 /* propagate to alarms-reg ?? (chk val!) */ 1422 #define CHAN_READY (CHAN_ENA|CHAN_CNVRTD) /* sample ready mask */ 1423 1424 #define TEMP_OTS_OE 0x20 /* OTS Output Enable */ 1425 #define VIN_RW1C_MASK (CHAN_READY|CHAN_ALM_MAX|CHAN_ALM_MIN) /* 0x87 */ 1426 #define TEMP_RW1C_MASK (VIN_RW1C_MASK|TEMP_ALM_CRIT|TEMP_FAULT) /* 0xCF */ 1427 1428 static void pc87360_init_device(struct platform_device *pdev, 1429 int use_thermistors) 1430 { 1431 struct pc87360_data *data = platform_get_drvdata(pdev); 1432 int i, nr; 1433 const u8 init_in[14] = { 2, 2, 2, 2, 2, 2, 2, 1, 1, 3, 1, 2, 2, 2 }; 1434 const u8 init_temp[3] = { 2, 2, 1 }; 1435 u8 reg; 1436 1437 if (init >= 2 && data->innr) { 1438 reg = pc87360_read_value(data, LD_IN, NO_BANK, 1439 PC87365_REG_IN_CONVRATE); 1440 dev_info(&pdev->dev, 1441 "VLM conversion set to 1s period, 160us delay\n"); 1442 pc87360_write_value(data, LD_IN, NO_BANK, 1443 PC87365_REG_IN_CONVRATE, 1444 (reg & 0xC0) | 0x11); 1445 } 1446 1447 nr = data->innr < 11 ? data->innr : 11; 1448 for (i = 0; i < nr; i++) { 1449 reg = pc87360_read_value(data, LD_IN, i, 1450 PC87365_REG_IN_STATUS); 1451 dev_dbg(&pdev->dev, "bios in%d status:0x%02x\n", i, reg); 1452 if (init >= init_in[i]) { 1453 /* Forcibly enable voltage channel */ 1454 if (!(reg & CHAN_ENA)) { 1455 dev_dbg(&pdev->dev, "Forcibly enabling in%d\n", 1456 i); 1457 pc87360_write_value(data, LD_IN, i, 1458 PC87365_REG_IN_STATUS, 1459 (reg & 0x68) | 0x87); 1460 } 1461 } 1462 } 1463 1464 /* 1465 * We can't blindly trust the Super-I/O space configuration bit, 1466 * most BIOS won't set it properly 1467 */ 1468 dev_dbg(&pdev->dev, "bios thermistors:%d\n", use_thermistors); 1469 for (i = 11; i < data->innr; i++) { 1470 reg = pc87360_read_value(data, LD_IN, i, 1471 PC87365_REG_TEMP_STATUS); 1472 use_thermistors = use_thermistors || (reg & CHAN_ENA); 1473 /* thermistors are temp[4-6], measured on vin[11-14] */ 1474 dev_dbg(&pdev->dev, "bios temp%d_status:0x%02x\n", i-7, reg); 1475 } 1476 dev_dbg(&pdev->dev, "using thermistors:%d\n", use_thermistors); 1477 1478 i = use_thermistors ? 2 : 0; 1479 for (; i < data->tempnr; i++) { 1480 reg = pc87360_read_value(data, LD_TEMP, i, 1481 PC87365_REG_TEMP_STATUS); 1482 dev_dbg(&pdev->dev, "bios temp%d_status:0x%02x\n", i + 1, reg); 1483 if (init >= init_temp[i]) { 1484 /* Forcibly enable temperature channel */ 1485 if (!(reg & CHAN_ENA)) { 1486 dev_dbg(&pdev->dev, 1487 "Forcibly enabling temp%d\n", i + 1); 1488 pc87360_write_value(data, LD_TEMP, i, 1489 PC87365_REG_TEMP_STATUS, 1490 0xCF); 1491 } 1492 } 1493 } 1494 1495 if (use_thermistors) { 1496 for (i = 11; i < data->innr; i++) { 1497 if (init >= init_in[i]) { 1498 /* 1499 * The pin may already be used by thermal 1500 * diodes 1501 */ 1502 reg = pc87360_read_value(data, LD_TEMP, 1503 (i - 11) / 2, PC87365_REG_TEMP_STATUS); 1504 if (reg & CHAN_ENA) { 1505 dev_dbg(&pdev->dev, 1506 "Skipping temp%d, pin already in use by temp%d\n", 1507 i - 7, (i - 11) / 2); 1508 continue; 1509 } 1510 1511 /* Forcibly enable thermistor channel */ 1512 reg = pc87360_read_value(data, LD_IN, i, 1513 PC87365_REG_IN_STATUS); 1514 if (!(reg & CHAN_ENA)) { 1515 dev_dbg(&pdev->dev, 1516 "Forcibly enabling temp%d\n", 1517 i - 7); 1518 pc87360_write_value(data, LD_IN, i, 1519 PC87365_REG_TEMP_STATUS, 1520 (reg & 0x60) | 0x8F); 1521 } 1522 } 1523 } 1524 } 1525 1526 if (data->innr) { 1527 reg = pc87360_read_value(data, LD_IN, NO_BANK, 1528 PC87365_REG_IN_CONFIG); 1529 dev_dbg(&pdev->dev, "bios vin-cfg:0x%02x\n", reg); 1530 if (reg & CHAN_ENA) { 1531 dev_dbg(&pdev->dev, 1532 "Forcibly enabling monitoring (VLM)\n"); 1533 pc87360_write_value(data, LD_IN, NO_BANK, 1534 PC87365_REG_IN_CONFIG, 1535 reg & 0xFE); 1536 } 1537 } 1538 1539 if (data->tempnr) { 1540 reg = pc87360_read_value(data, LD_TEMP, NO_BANK, 1541 PC87365_REG_TEMP_CONFIG); 1542 dev_dbg(&pdev->dev, "bios temp-cfg:0x%02x\n", reg); 1543 if (reg & CHAN_ENA) { 1544 dev_dbg(&pdev->dev, 1545 "Forcibly enabling monitoring (TMS)\n"); 1546 pc87360_write_value(data, LD_TEMP, NO_BANK, 1547 PC87365_REG_TEMP_CONFIG, 1548 reg & 0xFE); 1549 } 1550 1551 if (init >= 2) { 1552 /* Chip config as documented by National Semi. */ 1553 pc87360_write_value(data, LD_TEMP, 0xF, 0xA, 0x08); 1554 /* 1555 * We voluntarily omit the bank here, in case the 1556 * sequence itself matters. It shouldn't be a problem, 1557 * since nobody else is supposed to access the 1558 * device at that point. 1559 */ 1560 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xB, 0x04); 1561 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xC, 0x35); 1562 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xD, 0x05); 1563 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xE, 0x05); 1564 } 1565 } 1566 } 1567 1568 static void pc87360_autodiv(struct device *dev, int nr) 1569 { 1570 struct pc87360_data *data = dev_get_drvdata(dev); 1571 u8 old_min = data->fan_min[nr]; 1572 1573 /* Increase clock divider if needed and possible */ 1574 if ((data->fan_status[nr] & 0x04) /* overflow flag */ 1575 || (data->fan[nr] >= 224)) { /* next to overflow */ 1576 if ((data->fan_status[nr] & 0x60) != 0x60) { 1577 data->fan_status[nr] += 0x20; 1578 data->fan_min[nr] >>= 1; 1579 data->fan[nr] >>= 1; 1580 dev_dbg(dev, 1581 "Increasing clock divider to %d for fan %d\n", 1582 FAN_DIV_FROM_REG(data->fan_status[nr]), nr + 1); 1583 } 1584 } else { 1585 /* Decrease clock divider if possible */ 1586 while (!(data->fan_min[nr] & 0x80) /* min "nails" divider */ 1587 && data->fan[nr] < 85 /* bad accuracy */ 1588 && (data->fan_status[nr] & 0x60) != 0x00) { 1589 data->fan_status[nr] -= 0x20; 1590 data->fan_min[nr] <<= 1; 1591 data->fan[nr] <<= 1; 1592 dev_dbg(dev, 1593 "Decreasing clock divider to %d for fan %d\n", 1594 FAN_DIV_FROM_REG(data->fan_status[nr]), 1595 nr + 1); 1596 } 1597 } 1598 1599 /* Write new fan min if it changed */ 1600 if (old_min != data->fan_min[nr]) { 1601 pc87360_write_value(data, LD_FAN, NO_BANK, 1602 PC87360_REG_FAN_MIN(nr), 1603 data->fan_min[nr]); 1604 } 1605 } 1606 1607 static struct pc87360_data *pc87360_update_device(struct device *dev) 1608 { 1609 struct pc87360_data *data = dev_get_drvdata(dev); 1610 u8 i; 1611 1612 mutex_lock(&data->update_lock); 1613 1614 if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) { 1615 dev_dbg(dev, "Data update\n"); 1616 1617 /* Fans */ 1618 for (i = 0; i < data->fannr; i++) { 1619 if (FAN_CONFIG_MONITOR(data->fan_conf, i)) { 1620 data->fan_status[i] = 1621 pc87360_read_value(data, LD_FAN, 1622 NO_BANK, PC87360_REG_FAN_STATUS(i)); 1623 data->fan[i] = pc87360_read_value(data, LD_FAN, 1624 NO_BANK, PC87360_REG_FAN(i)); 1625 data->fan_min[i] = pc87360_read_value(data, 1626 LD_FAN, NO_BANK, 1627 PC87360_REG_FAN_MIN(i)); 1628 /* Change clock divider if needed */ 1629 pc87360_autodiv(dev, i); 1630 /* Clear bits and write new divider */ 1631 pc87360_write_value(data, LD_FAN, NO_BANK, 1632 PC87360_REG_FAN_STATUS(i), 1633 data->fan_status[i]); 1634 } 1635 if (FAN_CONFIG_CONTROL(data->fan_conf, i)) 1636 data->pwm[i] = pc87360_read_value(data, LD_FAN, 1637 NO_BANK, PC87360_REG_PWM(i)); 1638 } 1639 1640 /* Voltages */ 1641 for (i = 0; i < data->innr; i++) { 1642 data->in_status[i] = pc87360_read_value(data, LD_IN, i, 1643 PC87365_REG_IN_STATUS); 1644 /* Clear bits */ 1645 pc87360_write_value(data, LD_IN, i, 1646 PC87365_REG_IN_STATUS, 1647 data->in_status[i]); 1648 if ((data->in_status[i] & CHAN_READY) == CHAN_READY) { 1649 data->in[i] = pc87360_read_value(data, LD_IN, 1650 i, PC87365_REG_IN); 1651 } 1652 if (data->in_status[i] & CHAN_ENA) { 1653 data->in_min[i] = pc87360_read_value(data, 1654 LD_IN, i, 1655 PC87365_REG_IN_MIN); 1656 data->in_max[i] = pc87360_read_value(data, 1657 LD_IN, i, 1658 PC87365_REG_IN_MAX); 1659 if (i >= 11) 1660 data->in_crit[i-11] = 1661 pc87360_read_value(data, LD_IN, 1662 i, PC87365_REG_TEMP_CRIT); 1663 } 1664 } 1665 if (data->innr) { 1666 data->in_alarms = pc87360_read_value(data, LD_IN, 1667 NO_BANK, PC87365_REG_IN_ALARMS1) 1668 | ((pc87360_read_value(data, LD_IN, 1669 NO_BANK, PC87365_REG_IN_ALARMS2) 1670 & 0x07) << 8); 1671 data->vid = (data->vid_conf & 0xE0) ? 1672 pc87360_read_value(data, LD_IN, 1673 NO_BANK, PC87365_REG_VID) : 0x1F; 1674 } 1675 1676 /* Temperatures */ 1677 for (i = 0; i < data->tempnr; i++) { 1678 data->temp_status[i] = pc87360_read_value(data, 1679 LD_TEMP, i, 1680 PC87365_REG_TEMP_STATUS); 1681 /* Clear bits */ 1682 pc87360_write_value(data, LD_TEMP, i, 1683 PC87365_REG_TEMP_STATUS, 1684 data->temp_status[i]); 1685 if ((data->temp_status[i] & CHAN_READY) == CHAN_READY) { 1686 data->temp[i] = pc87360_read_value(data, 1687 LD_TEMP, i, 1688 PC87365_REG_TEMP); 1689 } 1690 if (data->temp_status[i] & CHAN_ENA) { 1691 data->temp_min[i] = pc87360_read_value(data, 1692 LD_TEMP, i, 1693 PC87365_REG_TEMP_MIN); 1694 data->temp_max[i] = pc87360_read_value(data, 1695 LD_TEMP, i, 1696 PC87365_REG_TEMP_MAX); 1697 data->temp_crit[i] = pc87360_read_value(data, 1698 LD_TEMP, i, 1699 PC87365_REG_TEMP_CRIT); 1700 } 1701 } 1702 if (data->tempnr) { 1703 data->temp_alarms = pc87360_read_value(data, LD_TEMP, 1704 NO_BANK, PC87365_REG_TEMP_ALARMS) 1705 & 0x3F; 1706 } 1707 1708 data->last_updated = jiffies; 1709 data->valid = 1; 1710 } 1711 1712 mutex_unlock(&data->update_lock); 1713 1714 return data; 1715 } 1716 1717 static int __init pc87360_device_add(unsigned short address) 1718 { 1719 struct resource res[3]; 1720 int err, i, res_count; 1721 1722 pdev = platform_device_alloc("pc87360", address); 1723 if (!pdev) { 1724 err = -ENOMEM; 1725 pr_err("Device allocation failed\n"); 1726 goto exit; 1727 } 1728 1729 memset(res, 0, 3 * sizeof(struct resource)); 1730 res_count = 0; 1731 for (i = 0; i < 3; i++) { 1732 if (!extra_isa[i]) 1733 continue; 1734 res[res_count].start = extra_isa[i]; 1735 res[res_count].end = extra_isa[i] + PC87360_EXTENT - 1; 1736 res[res_count].name = "pc87360", 1737 res[res_count].flags = IORESOURCE_IO, 1738 1739 err = acpi_check_resource_conflict(&res[res_count]); 1740 if (err) 1741 goto exit_device_put; 1742 1743 res_count++; 1744 } 1745 1746 err = platform_device_add_resources(pdev, res, res_count); 1747 if (err) { 1748 pr_err("Device resources addition failed (%d)\n", err); 1749 goto exit_device_put; 1750 } 1751 1752 err = platform_device_add(pdev); 1753 if (err) { 1754 pr_err("Device addition failed (%d)\n", err); 1755 goto exit_device_put; 1756 } 1757 1758 return 0; 1759 1760 exit_device_put: 1761 platform_device_put(pdev); 1762 exit: 1763 return err; 1764 } 1765 1766 static int __init pc87360_init(void) 1767 { 1768 int err, i; 1769 unsigned short address = 0; 1770 1771 if (pc87360_find(0x2e, &devid, extra_isa) 1772 && pc87360_find(0x4e, &devid, extra_isa)) { 1773 pr_warn("PC8736x not detected, module not inserted\n"); 1774 return -ENODEV; 1775 } 1776 1777 /* Arbitrarily pick one of the addresses */ 1778 for (i = 0; i < 3; i++) { 1779 if (extra_isa[i] != 0x0000) { 1780 address = extra_isa[i]; 1781 break; 1782 } 1783 } 1784 1785 if (address == 0x0000) { 1786 pr_warn("No active logical device, module not inserted\n"); 1787 return -ENODEV; 1788 } 1789 1790 err = platform_driver_register(&pc87360_driver); 1791 if (err) 1792 goto exit; 1793 1794 /* Sets global pdev as a side effect */ 1795 err = pc87360_device_add(address); 1796 if (err) 1797 goto exit_driver; 1798 1799 return 0; 1800 1801 exit_driver: 1802 platform_driver_unregister(&pc87360_driver); 1803 exit: 1804 return err; 1805 } 1806 1807 static void __exit pc87360_exit(void) 1808 { 1809 platform_device_unregister(pdev); 1810 platform_driver_unregister(&pc87360_driver); 1811 } 1812 1813 1814 MODULE_AUTHOR("Jean Delvare <jdelvare@suse.de>"); 1815 MODULE_DESCRIPTION("PC8736x hardware monitor"); 1816 MODULE_LICENSE("GPL"); 1817 1818 module_init(pc87360_init); 1819 module_exit(pc87360_exit); 1820