1 /* 2 * pc87360.c - Part of lm_sensors, Linux kernel modules 3 * for hardware monitoring 4 * Copyright (C) 2004, 2007 Jean Delvare <khali@linux-fr.org> 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 " 1194 "temperature monitoring\n"); 1195 } 1196 if (confreg[3] & 0xE0) { 1197 pr_info("VID inputs routed (mode %u)\n", 1198 confreg[3] >> 5); 1199 } 1200 } 1201 } 1202 } 1203 1204 superio_exit(sioaddr); 1205 return 0; 1206 } 1207 1208 static void pc87360_remove_files(struct device *dev) 1209 { 1210 int i; 1211 1212 device_remove_file(dev, &dev_attr_name); 1213 device_remove_file(dev, &dev_attr_alarms_temp); 1214 for (i = 0; i < ARRAY_SIZE(pc8736x_temp_attr_group); i++) 1215 sysfs_remove_group(&dev->kobj, &pc8736x_temp_attr_group[i]); 1216 for (i = 0; i < ARRAY_SIZE(pc8736x_fan_attr_group); i++) { 1217 sysfs_remove_group(&pdev->dev.kobj, &pc8736x_fan_attr_group[i]); 1218 device_remove_file(dev, &pwm[i].dev_attr); 1219 } 1220 sysfs_remove_group(&dev->kobj, &pc8736x_therm_group); 1221 sysfs_remove_group(&dev->kobj, &pc8736x_vin_group); 1222 } 1223 1224 static int pc87360_probe(struct platform_device *pdev) 1225 { 1226 int i; 1227 struct pc87360_data *data; 1228 int err = 0; 1229 const char *name = "pc87360"; 1230 int use_thermistors = 0; 1231 struct device *dev = &pdev->dev; 1232 1233 data = devm_kzalloc(dev, sizeof(struct pc87360_data), GFP_KERNEL); 1234 if (!data) 1235 return -ENOMEM; 1236 1237 data->fannr = 2; 1238 data->innr = 0; 1239 data->tempnr = 0; 1240 1241 switch (devid) { 1242 case 0xe8: 1243 name = "pc87363"; 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 data->valid = 0; 1265 mutex_init(&data->lock); 1266 mutex_init(&data->update_lock); 1267 platform_set_drvdata(pdev, data); 1268 1269 for (i = 0; i < LDNI_MAX; i++) { 1270 data->address[i] = extra_isa[i]; 1271 if (data->address[i] 1272 && !devm_request_region(dev, extra_isa[i], PC87360_EXTENT, 1273 pc87360_driver.driver.name)) { 1274 dev_err(dev, "Region 0x%x-0x%x already " 1275 "in use!\n", extra_isa[i], 1276 extra_isa[i]+PC87360_EXTENT-1); 1277 return -EBUSY; 1278 } 1279 } 1280 1281 /* Retrieve the fans configuration from Super-I/O space */ 1282 if (data->fannr) 1283 data->fan_conf = confreg[0] | (confreg[1] << 8); 1284 1285 /* 1286 * Use the correct reference voltage 1287 * Unless both the VLM and the TMS logical devices agree to 1288 * use an external Vref, the internal one is used. 1289 */ 1290 if (data->innr) { 1291 i = pc87360_read_value(data, LD_IN, NO_BANK, 1292 PC87365_REG_IN_CONFIG); 1293 if (data->tempnr) { 1294 i &= pc87360_read_value(data, LD_TEMP, NO_BANK, 1295 PC87365_REG_TEMP_CONFIG); 1296 } 1297 data->in_vref = (i&0x02) ? 3025 : 2966; 1298 dev_dbg(dev, "Using %s reference voltage\n", 1299 (i&0x02) ? "external" : "internal"); 1300 1301 data->vid_conf = confreg[3]; 1302 data->vrm = vid_which_vrm(); 1303 } 1304 1305 /* Fan clock dividers may be needed before any data is read */ 1306 for (i = 0; i < data->fannr; i++) { 1307 if (FAN_CONFIG_MONITOR(data->fan_conf, i)) 1308 data->fan_status[i] = pc87360_read_value(data, 1309 LD_FAN, NO_BANK, 1310 PC87360_REG_FAN_STATUS(i)); 1311 } 1312 1313 if (init > 0) { 1314 if (devid == 0xe9 && data->address[1]) /* PC87366 */ 1315 use_thermistors = confreg[2] & 0x40; 1316 1317 pc87360_init_device(pdev, use_thermistors); 1318 } 1319 1320 /* Register all-or-nothing sysfs groups */ 1321 1322 if (data->innr) { 1323 err = sysfs_create_group(&dev->kobj, &pc8736x_vin_group); 1324 if (err) 1325 goto error; 1326 } 1327 1328 if (data->innr == 14) { 1329 err = sysfs_create_group(&dev->kobj, &pc8736x_therm_group); 1330 if (err) 1331 goto error; 1332 } 1333 1334 /* create device attr-files for varying sysfs groups */ 1335 1336 if (data->tempnr) { 1337 for (i = 0; i < data->tempnr; i++) { 1338 err = sysfs_create_group(&dev->kobj, 1339 &pc8736x_temp_attr_group[i]); 1340 if (err) 1341 goto error; 1342 } 1343 err = device_create_file(dev, &dev_attr_alarms_temp); 1344 if (err) 1345 goto error; 1346 } 1347 1348 for (i = 0; i < data->fannr; i++) { 1349 if (FAN_CONFIG_MONITOR(data->fan_conf, i)) { 1350 err = sysfs_create_group(&dev->kobj, 1351 &pc8736x_fan_attr_group[i]); 1352 if (err) 1353 goto error; 1354 } 1355 if (FAN_CONFIG_CONTROL(data->fan_conf, i)) { 1356 err = device_create_file(dev, &pwm[i].dev_attr); 1357 if (err) 1358 goto error; 1359 } 1360 } 1361 1362 err = device_create_file(dev, &dev_attr_name); 1363 if (err) 1364 goto error; 1365 1366 data->hwmon_dev = hwmon_device_register(dev); 1367 if (IS_ERR(data->hwmon_dev)) { 1368 err = PTR_ERR(data->hwmon_dev); 1369 goto error; 1370 } 1371 return 0; 1372 1373 error: 1374 pc87360_remove_files(dev); 1375 return err; 1376 } 1377 1378 static int pc87360_remove(struct platform_device *pdev) 1379 { 1380 struct pc87360_data *data = platform_get_drvdata(pdev); 1381 1382 hwmon_device_unregister(data->hwmon_dev); 1383 pc87360_remove_files(&pdev->dev); 1384 1385 return 0; 1386 } 1387 1388 /* 1389 * ldi is the logical device index 1390 * bank is for voltages and temperatures only 1391 */ 1392 static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank, 1393 u8 reg) 1394 { 1395 int res; 1396 1397 mutex_lock(&(data->lock)); 1398 if (bank != NO_BANK) 1399 outb_p(bank, data->address[ldi] + PC87365_REG_BANK); 1400 res = inb_p(data->address[ldi] + reg); 1401 mutex_unlock(&(data->lock)); 1402 1403 return res; 1404 } 1405 1406 static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank, 1407 u8 reg, u8 value) 1408 { 1409 mutex_lock(&(data->lock)); 1410 if (bank != NO_BANK) 1411 outb_p(bank, data->address[ldi] + PC87365_REG_BANK); 1412 outb_p(value, data->address[ldi] + reg); 1413 mutex_unlock(&(data->lock)); 1414 } 1415 1416 /* (temp & vin) channel conversion status register flags (pdf sec.11.5.12) */ 1417 #define CHAN_CNVRTD 0x80 /* new data ready */ 1418 #define CHAN_ENA 0x01 /* enabled channel (temp or vin) */ 1419 #define CHAN_ALM_ENA 0x10 /* propagate to alarms-reg ?? (chk val!) */ 1420 #define CHAN_READY (CHAN_ENA|CHAN_CNVRTD) /* sample ready mask */ 1421 1422 #define TEMP_OTS_OE 0x20 /* OTS Output Enable */ 1423 #define VIN_RW1C_MASK (CHAN_READY|CHAN_ALM_MAX|CHAN_ALM_MIN) /* 0x87 */ 1424 #define TEMP_RW1C_MASK (VIN_RW1C_MASK|TEMP_ALM_CRIT|TEMP_FAULT) /* 0xCF */ 1425 1426 static void pc87360_init_device(struct platform_device *pdev, 1427 int use_thermistors) 1428 { 1429 struct pc87360_data *data = platform_get_drvdata(pdev); 1430 int i, nr; 1431 const u8 init_in[14] = { 2, 2, 2, 2, 2, 2, 2, 1, 1, 3, 1, 2, 2, 2 }; 1432 const u8 init_temp[3] = { 2, 2, 1 }; 1433 u8 reg; 1434 1435 if (init >= 2 && data->innr) { 1436 reg = pc87360_read_value(data, LD_IN, NO_BANK, 1437 PC87365_REG_IN_CONVRATE); 1438 dev_info(&pdev->dev, "VLM conversion set to " 1439 "1s period, 160us delay\n"); 1440 pc87360_write_value(data, LD_IN, NO_BANK, 1441 PC87365_REG_IN_CONVRATE, 1442 (reg & 0xC0) | 0x11); 1443 } 1444 1445 nr = data->innr < 11 ? data->innr : 11; 1446 for (i = 0; i < nr; i++) { 1447 reg = pc87360_read_value(data, LD_IN, i, 1448 PC87365_REG_IN_STATUS); 1449 dev_dbg(&pdev->dev, "bios in%d status:0x%02x\n", i, reg); 1450 if (init >= init_in[i]) { 1451 /* Forcibly enable voltage channel */ 1452 if (!(reg & CHAN_ENA)) { 1453 dev_dbg(&pdev->dev, "Forcibly " 1454 "enabling in%d\n", i); 1455 pc87360_write_value(data, LD_IN, i, 1456 PC87365_REG_IN_STATUS, 1457 (reg & 0x68) | 0x87); 1458 } 1459 } 1460 } 1461 1462 /* 1463 * We can't blindly trust the Super-I/O space configuration bit, 1464 * most BIOS won't set it properly 1465 */ 1466 dev_dbg(&pdev->dev, "bios thermistors:%d\n", use_thermistors); 1467 for (i = 11; i < data->innr; i++) { 1468 reg = pc87360_read_value(data, LD_IN, i, 1469 PC87365_REG_TEMP_STATUS); 1470 use_thermistors = use_thermistors || (reg & CHAN_ENA); 1471 /* thermistors are temp[4-6], measured on vin[11-14] */ 1472 dev_dbg(&pdev->dev, "bios temp%d_status:0x%02x\n", i-7, reg); 1473 } 1474 dev_dbg(&pdev->dev, "using thermistors:%d\n", use_thermistors); 1475 1476 i = use_thermistors ? 2 : 0; 1477 for (; i < data->tempnr; i++) { 1478 reg = pc87360_read_value(data, LD_TEMP, i, 1479 PC87365_REG_TEMP_STATUS); 1480 dev_dbg(&pdev->dev, "bios temp%d_status:0x%02x\n", i + 1, reg); 1481 if (init >= init_temp[i]) { 1482 /* Forcibly enable temperature channel */ 1483 if (!(reg & CHAN_ENA)) { 1484 dev_dbg(&pdev->dev, 1485 "Forcibly enabling temp%d\n", i + 1); 1486 pc87360_write_value(data, LD_TEMP, i, 1487 PC87365_REG_TEMP_STATUS, 1488 0xCF); 1489 } 1490 } 1491 } 1492 1493 if (use_thermistors) { 1494 for (i = 11; i < data->innr; i++) { 1495 if (init >= init_in[i]) { 1496 /* 1497 * The pin may already be used by thermal 1498 * diodes 1499 */ 1500 reg = pc87360_read_value(data, LD_TEMP, 1501 (i - 11) / 2, PC87365_REG_TEMP_STATUS); 1502 if (reg & CHAN_ENA) { 1503 dev_dbg(&pdev->dev, 1504 "Skipping temp%d, pin already in use by temp%d\n", 1505 i - 7, (i - 11) / 2); 1506 continue; 1507 } 1508 1509 /* Forcibly enable thermistor channel */ 1510 reg = pc87360_read_value(data, LD_IN, i, 1511 PC87365_REG_IN_STATUS); 1512 if (!(reg & CHAN_ENA)) { 1513 dev_dbg(&pdev->dev, 1514 "Forcibly enabling temp%d\n", 1515 i - 7); 1516 pc87360_write_value(data, LD_IN, i, 1517 PC87365_REG_TEMP_STATUS, 1518 (reg & 0x60) | 0x8F); 1519 } 1520 } 1521 } 1522 } 1523 1524 if (data->innr) { 1525 reg = pc87360_read_value(data, LD_IN, NO_BANK, 1526 PC87365_REG_IN_CONFIG); 1527 dev_dbg(&pdev->dev, "bios vin-cfg:0x%02x\n", reg); 1528 if (reg & CHAN_ENA) { 1529 dev_dbg(&pdev->dev, 1530 "Forcibly enabling monitoring (VLM)\n"); 1531 pc87360_write_value(data, LD_IN, NO_BANK, 1532 PC87365_REG_IN_CONFIG, 1533 reg & 0xFE); 1534 } 1535 } 1536 1537 if (data->tempnr) { 1538 reg = pc87360_read_value(data, LD_TEMP, NO_BANK, 1539 PC87365_REG_TEMP_CONFIG); 1540 dev_dbg(&pdev->dev, "bios temp-cfg:0x%02x\n", reg); 1541 if (reg & CHAN_ENA) { 1542 dev_dbg(&pdev->dev, 1543 "Forcibly enabling monitoring (TMS)\n"); 1544 pc87360_write_value(data, LD_TEMP, NO_BANK, 1545 PC87365_REG_TEMP_CONFIG, 1546 reg & 0xFE); 1547 } 1548 1549 if (init >= 2) { 1550 /* Chip config as documented by National Semi. */ 1551 pc87360_write_value(data, LD_TEMP, 0xF, 0xA, 0x08); 1552 /* 1553 * We voluntarily omit the bank here, in case the 1554 * sequence itself matters. It shouldn't be a problem, 1555 * since nobody else is supposed to access the 1556 * device at that point. 1557 */ 1558 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xB, 0x04); 1559 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xC, 0x35); 1560 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xD, 0x05); 1561 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xE, 0x05); 1562 } 1563 } 1564 } 1565 1566 static void pc87360_autodiv(struct device *dev, int nr) 1567 { 1568 struct pc87360_data *data = dev_get_drvdata(dev); 1569 u8 old_min = data->fan_min[nr]; 1570 1571 /* Increase clock divider if needed and possible */ 1572 if ((data->fan_status[nr] & 0x04) /* overflow flag */ 1573 || (data->fan[nr] >= 224)) { /* next to overflow */ 1574 if ((data->fan_status[nr] & 0x60) != 0x60) { 1575 data->fan_status[nr] += 0x20; 1576 data->fan_min[nr] >>= 1; 1577 data->fan[nr] >>= 1; 1578 dev_dbg(dev, "Increasing " 1579 "clock divider to %d for fan %d\n", 1580 FAN_DIV_FROM_REG(data->fan_status[nr]), nr + 1); 1581 } 1582 } else { 1583 /* Decrease clock divider if possible */ 1584 while (!(data->fan_min[nr] & 0x80) /* min "nails" divider */ 1585 && data->fan[nr] < 85 /* bad accuracy */ 1586 && (data->fan_status[nr] & 0x60) != 0x00) { 1587 data->fan_status[nr] -= 0x20; 1588 data->fan_min[nr] <<= 1; 1589 data->fan[nr] <<= 1; 1590 dev_dbg(dev, "Decreasing " 1591 "clock divider to %d for fan %d\n", 1592 FAN_DIV_FROM_REG(data->fan_status[nr]), 1593 nr + 1); 1594 } 1595 } 1596 1597 /* Write new fan min if it changed */ 1598 if (old_min != data->fan_min[nr]) { 1599 pc87360_write_value(data, LD_FAN, NO_BANK, 1600 PC87360_REG_FAN_MIN(nr), 1601 data->fan_min[nr]); 1602 } 1603 } 1604 1605 static struct pc87360_data *pc87360_update_device(struct device *dev) 1606 { 1607 struct pc87360_data *data = dev_get_drvdata(dev); 1608 u8 i; 1609 1610 mutex_lock(&data->update_lock); 1611 1612 if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) { 1613 dev_dbg(dev, "Data update\n"); 1614 1615 /* Fans */ 1616 for (i = 0; i < data->fannr; i++) { 1617 if (FAN_CONFIG_MONITOR(data->fan_conf, i)) { 1618 data->fan_status[i] = 1619 pc87360_read_value(data, LD_FAN, 1620 NO_BANK, PC87360_REG_FAN_STATUS(i)); 1621 data->fan[i] = pc87360_read_value(data, LD_FAN, 1622 NO_BANK, PC87360_REG_FAN(i)); 1623 data->fan_min[i] = pc87360_read_value(data, 1624 LD_FAN, NO_BANK, 1625 PC87360_REG_FAN_MIN(i)); 1626 /* Change clock divider if needed */ 1627 pc87360_autodiv(dev, i); 1628 /* Clear bits and write new divider */ 1629 pc87360_write_value(data, LD_FAN, NO_BANK, 1630 PC87360_REG_FAN_STATUS(i), 1631 data->fan_status[i]); 1632 } 1633 if (FAN_CONFIG_CONTROL(data->fan_conf, i)) 1634 data->pwm[i] = pc87360_read_value(data, LD_FAN, 1635 NO_BANK, PC87360_REG_PWM(i)); 1636 } 1637 1638 /* Voltages */ 1639 for (i = 0; i < data->innr; i++) { 1640 data->in_status[i] = pc87360_read_value(data, LD_IN, i, 1641 PC87365_REG_IN_STATUS); 1642 /* Clear bits */ 1643 pc87360_write_value(data, LD_IN, i, 1644 PC87365_REG_IN_STATUS, 1645 data->in_status[i]); 1646 if ((data->in_status[i] & CHAN_READY) == CHAN_READY) { 1647 data->in[i] = pc87360_read_value(data, LD_IN, 1648 i, PC87365_REG_IN); 1649 } 1650 if (data->in_status[i] & CHAN_ENA) { 1651 data->in_min[i] = pc87360_read_value(data, 1652 LD_IN, i, 1653 PC87365_REG_IN_MIN); 1654 data->in_max[i] = pc87360_read_value(data, 1655 LD_IN, i, 1656 PC87365_REG_IN_MAX); 1657 if (i >= 11) 1658 data->in_crit[i-11] = 1659 pc87360_read_value(data, LD_IN, 1660 i, PC87365_REG_TEMP_CRIT); 1661 } 1662 } 1663 if (data->innr) { 1664 data->in_alarms = pc87360_read_value(data, LD_IN, 1665 NO_BANK, PC87365_REG_IN_ALARMS1) 1666 | ((pc87360_read_value(data, LD_IN, 1667 NO_BANK, PC87365_REG_IN_ALARMS2) 1668 & 0x07) << 8); 1669 data->vid = (data->vid_conf & 0xE0) ? 1670 pc87360_read_value(data, LD_IN, 1671 NO_BANK, PC87365_REG_VID) : 0x1F; 1672 } 1673 1674 /* Temperatures */ 1675 for (i = 0; i < data->tempnr; i++) { 1676 data->temp_status[i] = pc87360_read_value(data, 1677 LD_TEMP, i, 1678 PC87365_REG_TEMP_STATUS); 1679 /* Clear bits */ 1680 pc87360_write_value(data, LD_TEMP, i, 1681 PC87365_REG_TEMP_STATUS, 1682 data->temp_status[i]); 1683 if ((data->temp_status[i] & CHAN_READY) == CHAN_READY) { 1684 data->temp[i] = pc87360_read_value(data, 1685 LD_TEMP, i, 1686 PC87365_REG_TEMP); 1687 } 1688 if (data->temp_status[i] & CHAN_ENA) { 1689 data->temp_min[i] = pc87360_read_value(data, 1690 LD_TEMP, i, 1691 PC87365_REG_TEMP_MIN); 1692 data->temp_max[i] = pc87360_read_value(data, 1693 LD_TEMP, i, 1694 PC87365_REG_TEMP_MAX); 1695 data->temp_crit[i] = pc87360_read_value(data, 1696 LD_TEMP, i, 1697 PC87365_REG_TEMP_CRIT); 1698 } 1699 } 1700 if (data->tempnr) { 1701 data->temp_alarms = pc87360_read_value(data, LD_TEMP, 1702 NO_BANK, PC87365_REG_TEMP_ALARMS) 1703 & 0x3F; 1704 } 1705 1706 data->last_updated = jiffies; 1707 data->valid = 1; 1708 } 1709 1710 mutex_unlock(&data->update_lock); 1711 1712 return data; 1713 } 1714 1715 static int __init pc87360_device_add(unsigned short address) 1716 { 1717 struct resource res[3]; 1718 int err, i, res_count; 1719 1720 pdev = platform_device_alloc("pc87360", address); 1721 if (!pdev) { 1722 err = -ENOMEM; 1723 pr_err("Device allocation failed\n"); 1724 goto exit; 1725 } 1726 1727 memset(res, 0, 3 * sizeof(struct resource)); 1728 res_count = 0; 1729 for (i = 0; i < 3; i++) { 1730 if (!extra_isa[i]) 1731 continue; 1732 res[res_count].start = extra_isa[i]; 1733 res[res_count].end = extra_isa[i] + PC87360_EXTENT - 1; 1734 res[res_count].name = "pc87360", 1735 res[res_count].flags = IORESOURCE_IO, 1736 1737 err = acpi_check_resource_conflict(&res[res_count]); 1738 if (err) 1739 goto exit_device_put; 1740 1741 res_count++; 1742 } 1743 1744 err = platform_device_add_resources(pdev, res, res_count); 1745 if (err) { 1746 pr_err("Device resources addition failed (%d)\n", err); 1747 goto exit_device_put; 1748 } 1749 1750 err = platform_device_add(pdev); 1751 if (err) { 1752 pr_err("Device addition failed (%d)\n", err); 1753 goto exit_device_put; 1754 } 1755 1756 return 0; 1757 1758 exit_device_put: 1759 platform_device_put(pdev); 1760 exit: 1761 return err; 1762 } 1763 1764 static int __init pc87360_init(void) 1765 { 1766 int err, i; 1767 unsigned short address = 0; 1768 1769 if (pc87360_find(0x2e, &devid, extra_isa) 1770 && pc87360_find(0x4e, &devid, extra_isa)) { 1771 pr_warn("PC8736x not detected, module not inserted\n"); 1772 return -ENODEV; 1773 } 1774 1775 /* Arbitrarily pick one of the addresses */ 1776 for (i = 0; i < 3; i++) { 1777 if (extra_isa[i] != 0x0000) { 1778 address = extra_isa[i]; 1779 break; 1780 } 1781 } 1782 1783 if (address == 0x0000) { 1784 pr_warn("No active logical device, module not inserted\n"); 1785 return -ENODEV; 1786 } 1787 1788 err = platform_driver_register(&pc87360_driver); 1789 if (err) 1790 goto exit; 1791 1792 /* Sets global pdev as a side effect */ 1793 err = pc87360_device_add(address); 1794 if (err) 1795 goto exit_driver; 1796 1797 return 0; 1798 1799 exit_driver: 1800 platform_driver_unregister(&pc87360_driver); 1801 exit: 1802 return err; 1803 } 1804 1805 static void __exit pc87360_exit(void) 1806 { 1807 platform_device_unregister(pdev); 1808 platform_driver_unregister(&pc87360_driver); 1809 } 1810 1811 1812 MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>"); 1813 MODULE_DESCRIPTION("PC8736x hardware monitor"); 1814 MODULE_LICENSE("GPL"); 1815 1816 module_init(pc87360_init); 1817 module_exit(pc87360_exit); 1818