1/* 2 * pc87360.c - Part of lm_sensors, Linux kernel modules 3 * for hardware monitoring 4 * Copyright (C) 2004 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#include <linux/module.h> 37#include <linux/init.h> 38#include <linux/slab.h> 39#include <linux/jiffies.h> 40#include <linux/i2c.h> 41#include <linux/i2c-isa.h> 42#include <linux/hwmon.h> 43#include <linux/hwmon-sysfs.h> 44#include <linux/hwmon-vid.h> 45#include <linux/err.h> 46#include <linux/mutex.h> 47#include <asm/io.h> 48 49static u8 devid; 50static unsigned short address; 51static unsigned short extra_isa[3]; 52static u8 confreg[4]; 53 54enum chips { any_chip, pc87360, pc87363, pc87364, pc87365, pc87366 }; 55 56static int init = 1; 57module_param(init, int, 0); 58MODULE_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/* 66 * Super-I/O registers and operations 67 */ 68 69#define DEV 0x07 /* Register: Logical device select */ 70#define DEVID 0x20 /* Register: Device ID */ 71#define ACT 0x30 /* Register: Device activation */ 72#define BASE 0x60 /* Register: Base address */ 73 74#define FSCM 0x09 /* Logical device: fans */ 75#define VLM 0x0d /* Logical device: voltages */ 76#define TMS 0x0e /* Logical device: temperatures */ 77static const u8 logdev[3] = { FSCM, VLM, TMS }; 78 79#define LD_FAN 0 80#define LD_IN 1 81#define LD_TEMP 2 82 83static inline void superio_outb(int sioaddr, int reg, int val) 84{ 85 outb(reg, sioaddr); 86 outb(val, sioaddr+1); 87} 88 89static inline int superio_inb(int sioaddr, int reg) 90{ 91 outb(reg, sioaddr); 92 return inb(sioaddr+1); 93} 94 95static inline void superio_exit(int sioaddr) 96{ 97 outb(0x02, sioaddr); 98 outb(0x02, sioaddr+1); 99} 100 101/* 102 * Logical devices 103 */ 104 105#define PC87360_EXTENT 0x10 106#define PC87365_REG_BANK 0x09 107#define NO_BANK 0xff 108 109/* 110 * Fan registers and conversions 111 */ 112 113/* nr has to be 0 or 1 (PC87360/87363) or 2 (PC87364/87365/87366) */ 114#define PC87360_REG_PRESCALE(nr) (0x00 + 2 * (nr)) 115#define PC87360_REG_PWM(nr) (0x01 + 2 * (nr)) 116#define PC87360_REG_FAN_MIN(nr) (0x06 + 3 * (nr)) 117#define PC87360_REG_FAN(nr) (0x07 + 3 * (nr)) 118#define PC87360_REG_FAN_STATUS(nr) (0x08 + 3 * (nr)) 119 120#define FAN_FROM_REG(val,div) ((val) == 0 ? 0: \ 121 480000 / ((val)*(div))) 122#define FAN_TO_REG(val,div) ((val) <= 100 ? 0 : \ 123 480000 / ((val)*(div))) 124#define FAN_DIV_FROM_REG(val) (1 << ((val >> 5) & 0x03)) 125#define FAN_STATUS_FROM_REG(val) ((val) & 0x07) 126 127#define FAN_CONFIG_MONITOR(val,nr) (((val) >> (2 + nr * 3)) & 1) 128#define FAN_CONFIG_CONTROL(val,nr) (((val) >> (3 + nr * 3)) & 1) 129#define FAN_CONFIG_INVERT(val,nr) (((val) >> (4 + nr * 3)) & 1) 130 131#define PWM_FROM_REG(val,inv) ((inv) ? 255 - (val) : (val)) 132static inline u8 PWM_TO_REG(int val, int inv) 133{ 134 if (inv) 135 val = 255 - val; 136 if (val < 0) 137 return 0; 138 if (val > 255) 139 return 255; 140 return val; 141} 142 143/* 144 * Voltage registers and conversions 145 */ 146 147#define PC87365_REG_IN_CONVRATE 0x07 148#define PC87365_REG_IN_CONFIG 0x08 149#define PC87365_REG_IN 0x0B 150#define PC87365_REG_IN_MIN 0x0D 151#define PC87365_REG_IN_MAX 0x0C 152#define PC87365_REG_IN_STATUS 0x0A 153#define PC87365_REG_IN_ALARMS1 0x00 154#define PC87365_REG_IN_ALARMS2 0x01 155#define PC87365_REG_VID 0x06 156 157#define IN_FROM_REG(val,ref) (((val) * (ref) + 128) / 256) 158#define IN_TO_REG(val,ref) ((val) < 0 ? 0 : \ 159 (val)*256 >= (ref)*255 ? 255: \ 160 ((val) * 256 + (ref)/2) / (ref)) 161 162/* 163 * Temperature registers and conversions 164 */ 165 166#define PC87365_REG_TEMP_CONFIG 0x08 167#define PC87365_REG_TEMP 0x0B 168#define PC87365_REG_TEMP_MIN 0x0D 169#define PC87365_REG_TEMP_MAX 0x0C 170#define PC87365_REG_TEMP_CRIT 0x0E 171#define PC87365_REG_TEMP_STATUS 0x0A 172#define PC87365_REG_TEMP_ALARMS 0x00 173 174#define TEMP_FROM_REG(val) ((val) * 1000) 175#define TEMP_TO_REG(val) ((val) < -55000 ? -55 : \ 176 (val) > 127000 ? 127 : \ 177 (val) < 0 ? ((val) - 500) / 1000 : \ 178 ((val) + 500) / 1000) 179 180/* 181 * Client data (each client gets its own) 182 */ 183 184struct pc87360_data { 185 struct i2c_client client; 186 struct class_device *class_dev; 187 struct mutex lock; 188 struct mutex update_lock; 189 char valid; /* !=0 if following fields are valid */ 190 unsigned long last_updated; /* In jiffies */ 191 192 int address[3]; 193 194 u8 fannr, innr, tempnr; 195 196 u8 fan[3]; /* Register value */ 197 u8 fan_min[3]; /* Register value */ 198 u8 fan_status[3]; /* Register value */ 199 u8 pwm[3]; /* Register value */ 200 u16 fan_conf; /* Configuration register values, combined */ 201 202 u16 in_vref; /* 1 mV/bit */ 203 u8 in[14]; /* Register value */ 204 u8 in_min[14]; /* Register value */ 205 u8 in_max[14]; /* Register value */ 206 u8 in_crit[3]; /* Register value */ 207 u8 in_status[14]; /* Register value */ 208 u16 in_alarms; /* Register values, combined, masked */ 209 u8 vid_conf; /* Configuration register value */ 210 u8 vrm; 211 u8 vid; /* Register value */ 212 213 s8 temp[3]; /* Register value */ 214 s8 temp_min[3]; /* Register value */ 215 s8 temp_max[3]; /* Register value */ 216 s8 temp_crit[3]; /* Register value */ 217 u8 temp_status[3]; /* Register value */ 218 u8 temp_alarms; /* Register value, masked */ 219}; 220 221/* 222 * Functions declaration 223 */ 224 225static int pc87360_detect(struct i2c_adapter *adapter); 226static int pc87360_detach_client(struct i2c_client *client); 227 228static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank, 229 u8 reg); 230static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank, 231 u8 reg, u8 value); 232static void pc87360_init_client(struct i2c_client *client, int use_thermistors); 233static struct pc87360_data *pc87360_update_device(struct device *dev); 234 235/* 236 * Driver data (common to all clients) 237 */ 238 239static struct i2c_driver pc87360_driver = { 240 .driver = { 241 .owner = THIS_MODULE, 242 .name = "pc87360", 243 }, 244 .attach_adapter = pc87360_detect, 245 .detach_client = pc87360_detach_client, 246}; 247 248/* 249 * Sysfs stuff 250 */ 251 252static ssize_t show_fan_input(struct device *dev, struct device_attribute *devattr, char *buf) 253{ 254 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 255 struct pc87360_data *data = pc87360_update_device(dev); 256 return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan[attr->index], 257 FAN_DIV_FROM_REG(data->fan_status[attr->index]))); 258} 259static ssize_t show_fan_min(struct device *dev, 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_min[attr->index], 264 FAN_DIV_FROM_REG(data->fan_status[attr->index]))); 265} 266static ssize_t show_fan_div(struct device *dev, struct device_attribute *devattr, char *buf) 267{ 268 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 269 struct pc87360_data *data = pc87360_update_device(dev); 270 return sprintf(buf, "%u\n", 271 FAN_DIV_FROM_REG(data->fan_status[attr->index])); 272} 273static ssize_t show_fan_status(struct device *dev, struct device_attribute *devattr, char *buf) 274{ 275 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 276 struct pc87360_data *data = pc87360_update_device(dev); 277 return sprintf(buf, "%u\n", 278 FAN_STATUS_FROM_REG(data->fan_status[attr->index])); 279} 280static ssize_t set_fan_min(struct device *dev, struct device_attribute *devattr, const char *buf, 281 size_t count) 282{ 283 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 284 struct i2c_client *client = to_i2c_client(dev); 285 struct pc87360_data *data = i2c_get_clientdata(client); 286 long fan_min = simple_strtol(buf, NULL, 10); 287 288 mutex_lock(&data->update_lock); 289 fan_min = FAN_TO_REG(fan_min, FAN_DIV_FROM_REG(data->fan_status[attr->index])); 290 291 /* If it wouldn't fit, change clock divisor */ 292 while (fan_min > 255 293 && (data->fan_status[attr->index] & 0x60) != 0x60) { 294 fan_min >>= 1; 295 data->fan[attr->index] >>= 1; 296 data->fan_status[attr->index] += 0x20; 297 } 298 data->fan_min[attr->index] = fan_min > 255 ? 255 : fan_min; 299 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_MIN(attr->index), 300 data->fan_min[attr->index]); 301 302 /* Write new divider, preserve alarm bits */ 303 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_STATUS(attr->index), 304 data->fan_status[attr->index] & 0xF9); 305 mutex_unlock(&data->update_lock); 306 307 return count; 308} 309 310static struct sensor_device_attribute fan_input[] = { 311 SENSOR_ATTR(fan1_input, S_IRUGO, show_fan_input, NULL, 0), 312 SENSOR_ATTR(fan2_input, S_IRUGO, show_fan_input, NULL, 1), 313 SENSOR_ATTR(fan3_input, S_IRUGO, show_fan_input, NULL, 2), 314}; 315static struct sensor_device_attribute fan_status[] = { 316 SENSOR_ATTR(fan1_status, S_IRUGO, show_fan_status, NULL, 0), 317 SENSOR_ATTR(fan2_status, S_IRUGO, show_fan_status, NULL, 1), 318 SENSOR_ATTR(fan3_status, S_IRUGO, show_fan_status, NULL, 2), 319}; 320static struct sensor_device_attribute fan_div[] = { 321 SENSOR_ATTR(fan1_div, S_IRUGO, show_fan_div, NULL, 0), 322 SENSOR_ATTR(fan2_div, S_IRUGO, show_fan_div, NULL, 1), 323 SENSOR_ATTR(fan3_div, S_IRUGO, show_fan_div, NULL, 2), 324}; 325static struct sensor_device_attribute fan_min[] = { 326 SENSOR_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 0), 327 SENSOR_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 1), 328 SENSOR_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 2), 329}; 330 331#define FAN_UNIT_ATTRS(X) \ 332 &fan_input[X].dev_attr.attr, \ 333 &fan_status[X].dev_attr.attr, \ 334 &fan_div[X].dev_attr.attr, \ 335 &fan_min[X].dev_attr.attr 336 337static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr, char *buf) 338{ 339 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 340 struct pc87360_data *data = pc87360_update_device(dev); 341 return sprintf(buf, "%u\n", 342 PWM_FROM_REG(data->pwm[attr->index], 343 FAN_CONFIG_INVERT(data->fan_conf, 344 attr->index))); 345} 346static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr, const char *buf, 347 size_t count) 348{ 349 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 350 struct i2c_client *client = to_i2c_client(dev); 351 struct pc87360_data *data = i2c_get_clientdata(client); 352 long val = simple_strtol(buf, NULL, 10); 353 354 mutex_lock(&data->update_lock); 355 data->pwm[attr->index] = PWM_TO_REG(val, 356 FAN_CONFIG_INVERT(data->fan_conf, attr->index)); 357 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_PWM(attr->index), 358 data->pwm[attr->index]); 359 mutex_unlock(&data->update_lock); 360 return count; 361} 362 363static struct sensor_device_attribute pwm[] = { 364 SENSOR_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 0), 365 SENSOR_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 1), 366 SENSOR_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 2), 367}; 368 369static struct attribute * pc8736x_fan_attr_array[] = { 370 FAN_UNIT_ATTRS(0), 371 FAN_UNIT_ATTRS(1), 372 FAN_UNIT_ATTRS(2), 373 &pwm[0].dev_attr.attr, 374 &pwm[1].dev_attr.attr, 375 &pwm[2].dev_attr.attr, 376 NULL 377}; 378static const struct attribute_group pc8736x_fan_group = { 379 .attrs = pc8736x_fan_attr_array, 380}; 381 382static ssize_t show_in_input(struct device *dev, struct device_attribute *devattr, char *buf) 383{ 384 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 385 struct pc87360_data *data = pc87360_update_device(dev); 386 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index], 387 data->in_vref)); 388} 389static ssize_t show_in_min(struct device *dev, struct device_attribute *devattr, char *buf) 390{ 391 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 392 struct pc87360_data *data = pc87360_update_device(dev); 393 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index], 394 data->in_vref)); 395} 396static ssize_t show_in_max(struct device *dev, struct device_attribute *devattr, char *buf) 397{ 398 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 399 struct pc87360_data *data = pc87360_update_device(dev); 400 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index], 401 data->in_vref)); 402} 403static ssize_t show_in_status(struct device *dev, struct device_attribute *devattr, char *buf) 404{ 405 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 406 struct pc87360_data *data = pc87360_update_device(dev); 407 return sprintf(buf, "%u\n", data->in_status[attr->index]); 408} 409static ssize_t set_in_min(struct device *dev, struct device_attribute *devattr, const char *buf, 410 size_t count) 411{ 412 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 413 struct i2c_client *client = to_i2c_client(dev); 414 struct pc87360_data *data = i2c_get_clientdata(client); 415 long val = simple_strtol(buf, NULL, 10); 416 417 mutex_lock(&data->update_lock); 418 data->in_min[attr->index] = IN_TO_REG(val, data->in_vref); 419 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MIN, 420 data->in_min[attr->index]); 421 mutex_unlock(&data->update_lock); 422 return count; 423} 424static ssize_t set_in_max(struct device *dev, struct device_attribute *devattr, const char *buf, 425 size_t count) 426{ 427 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 428 struct i2c_client *client = to_i2c_client(dev); 429 struct pc87360_data *data = i2c_get_clientdata(client); 430 long val = simple_strtol(buf, NULL, 10); 431 432 mutex_lock(&data->update_lock); 433 data->in_max[attr->index] = IN_TO_REG(val, 434 data->in_vref); 435 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MAX, 436 data->in_max[attr->index]); 437 mutex_unlock(&data->update_lock); 438 return count; 439} 440 441static struct sensor_device_attribute in_input[] = { 442 SENSOR_ATTR(in0_input, S_IRUGO, show_in_input, NULL, 0), 443 SENSOR_ATTR(in1_input, S_IRUGO, show_in_input, NULL, 1), 444 SENSOR_ATTR(in2_input, S_IRUGO, show_in_input, NULL, 2), 445 SENSOR_ATTR(in3_input, S_IRUGO, show_in_input, NULL, 3), 446 SENSOR_ATTR(in4_input, S_IRUGO, show_in_input, NULL, 4), 447 SENSOR_ATTR(in5_input, S_IRUGO, show_in_input, NULL, 5), 448 SENSOR_ATTR(in6_input, S_IRUGO, show_in_input, NULL, 6), 449 SENSOR_ATTR(in7_input, S_IRUGO, show_in_input, NULL, 7), 450 SENSOR_ATTR(in8_input, S_IRUGO, show_in_input, NULL, 8), 451 SENSOR_ATTR(in9_input, S_IRUGO, show_in_input, NULL, 9), 452 SENSOR_ATTR(in10_input, S_IRUGO, show_in_input, NULL, 10), 453}; 454static struct sensor_device_attribute in_status[] = { 455 SENSOR_ATTR(in0_status, S_IRUGO, show_in_status, NULL, 0), 456 SENSOR_ATTR(in1_status, S_IRUGO, show_in_status, NULL, 1), 457 SENSOR_ATTR(in2_status, S_IRUGO, show_in_status, NULL, 2), 458 SENSOR_ATTR(in3_status, S_IRUGO, show_in_status, NULL, 3), 459 SENSOR_ATTR(in4_status, S_IRUGO, show_in_status, NULL, 4), 460 SENSOR_ATTR(in5_status, S_IRUGO, show_in_status, NULL, 5), 461 SENSOR_ATTR(in6_status, S_IRUGO, show_in_status, NULL, 6), 462 SENSOR_ATTR(in7_status, S_IRUGO, show_in_status, NULL, 7), 463 SENSOR_ATTR(in8_status, S_IRUGO, show_in_status, NULL, 8), 464 SENSOR_ATTR(in9_status, S_IRUGO, show_in_status, NULL, 9), 465 SENSOR_ATTR(in10_status, S_IRUGO, show_in_status, NULL, 10), 466}; 467static struct sensor_device_attribute in_min[] = { 468 SENSOR_ATTR(in0_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 0), 469 SENSOR_ATTR(in1_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 1), 470 SENSOR_ATTR(in2_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 2), 471 SENSOR_ATTR(in3_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 3), 472 SENSOR_ATTR(in4_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 4), 473 SENSOR_ATTR(in5_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 5), 474 SENSOR_ATTR(in6_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 6), 475 SENSOR_ATTR(in7_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 7), 476 SENSOR_ATTR(in8_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 8), 477 SENSOR_ATTR(in9_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 9), 478 SENSOR_ATTR(in10_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 10), 479}; 480static struct sensor_device_attribute in_max[] = { 481 SENSOR_ATTR(in0_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 0), 482 SENSOR_ATTR(in1_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 1), 483 SENSOR_ATTR(in2_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 2), 484 SENSOR_ATTR(in3_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 3), 485 SENSOR_ATTR(in4_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 4), 486 SENSOR_ATTR(in5_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 5), 487 SENSOR_ATTR(in6_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 6), 488 SENSOR_ATTR(in7_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 7), 489 SENSOR_ATTR(in8_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 8), 490 SENSOR_ATTR(in9_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 9), 491 SENSOR_ATTR(in10_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 10), 492}; 493 494#define VIN_UNIT_ATTRS(X) \ 495 &in_input[X].dev_attr.attr, \ 496 &in_status[X].dev_attr.attr, \ 497 &in_min[X].dev_attr.attr, \ 498 &in_max[X].dev_attr.attr 499 500static ssize_t show_vid(struct device *dev, struct device_attribute *attr, char *buf) 501{ 502 struct pc87360_data *data = pc87360_update_device(dev); 503 return sprintf(buf, "%u\n", vid_from_reg(data->vid, data->vrm)); 504} 505static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL); 506 507static ssize_t show_vrm(struct device *dev, struct device_attribute *attr, char *buf) 508{ 509 struct pc87360_data *data = pc87360_update_device(dev); 510 return sprintf(buf, "%u\n", data->vrm); 511} 512static ssize_t set_vrm(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) 513{ 514 struct i2c_client *client = to_i2c_client(dev); 515 struct pc87360_data *data = i2c_get_clientdata(client); 516 data->vrm = simple_strtoul(buf, NULL, 10); 517 return count; 518} 519static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm); 520 521static ssize_t show_in_alarms(struct device *dev, struct device_attribute *attr, char *buf) 522{ 523 struct pc87360_data *data = pc87360_update_device(dev); 524 return sprintf(buf, "%u\n", data->in_alarms); 525} 526static DEVICE_ATTR(alarms_in, S_IRUGO, show_in_alarms, NULL); 527 528static struct attribute *pc8736x_vin_attr_array[] = { 529 VIN_UNIT_ATTRS(0), 530 VIN_UNIT_ATTRS(1), 531 VIN_UNIT_ATTRS(2), 532 VIN_UNIT_ATTRS(3), 533 VIN_UNIT_ATTRS(4), 534 VIN_UNIT_ATTRS(5), 535 VIN_UNIT_ATTRS(6), 536 VIN_UNIT_ATTRS(7), 537 VIN_UNIT_ATTRS(8), 538 VIN_UNIT_ATTRS(9), 539 VIN_UNIT_ATTRS(10), 540 &dev_attr_cpu0_vid.attr, 541 &dev_attr_vrm.attr, 542 &dev_attr_alarms_in.attr, 543 NULL 544}; 545static const struct attribute_group pc8736x_vin_group = { 546 .attrs = pc8736x_vin_attr_array, 547}; 548 549static ssize_t show_therm_input(struct device *dev, struct device_attribute *devattr, char *buf) 550{ 551 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 552 struct pc87360_data *data = pc87360_update_device(dev); 553 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index], 554 data->in_vref)); 555} 556static ssize_t show_therm_min(struct device *dev, struct device_attribute *devattr, char *buf) 557{ 558 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 559 struct pc87360_data *data = pc87360_update_device(dev); 560 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index], 561 data->in_vref)); 562} 563static ssize_t show_therm_max(struct device *dev, struct device_attribute *devattr, char *buf) 564{ 565 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 566 struct pc87360_data *data = pc87360_update_device(dev); 567 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index], 568 data->in_vref)); 569} 570static ssize_t show_therm_crit(struct device *dev, struct device_attribute *devattr, char *buf) 571{ 572 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 573 struct pc87360_data *data = pc87360_update_device(dev); 574 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_crit[attr->index-11], 575 data->in_vref)); 576} 577static ssize_t show_therm_status(struct device *dev, struct device_attribute *devattr, char *buf) 578{ 579 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 580 struct pc87360_data *data = pc87360_update_device(dev); 581 return sprintf(buf, "%u\n", data->in_status[attr->index]); 582} 583static ssize_t set_therm_min(struct device *dev, struct device_attribute *devattr, const char *buf, 584 size_t count) 585{ 586 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 587 struct i2c_client *client = to_i2c_client(dev); 588 struct pc87360_data *data = i2c_get_clientdata(client); 589 long val = simple_strtol(buf, NULL, 10); 590 591 mutex_lock(&data->update_lock); 592 data->in_min[attr->index] = IN_TO_REG(val, data->in_vref); 593 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MIN, 594 data->in_min[attr->index]); 595 mutex_unlock(&data->update_lock); 596 return count; 597} 598static ssize_t set_therm_max(struct device *dev, struct device_attribute *devattr, const char *buf, 599 size_t count) 600{ 601 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 602 struct i2c_client *client = to_i2c_client(dev); 603 struct pc87360_data *data = i2c_get_clientdata(client); 604 long val = simple_strtol(buf, NULL, 10); 605 606 mutex_lock(&data->update_lock); 607 data->in_max[attr->index] = IN_TO_REG(val, data->in_vref); 608 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MAX, 609 data->in_max[attr->index]); 610 mutex_unlock(&data->update_lock); 611 return count; 612} 613static ssize_t set_therm_crit(struct device *dev, struct device_attribute *devattr, const char *buf, 614 size_t count) 615{ 616 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 617 struct i2c_client *client = to_i2c_client(dev); 618 struct pc87360_data *data = i2c_get_clientdata(client); 619 long val = simple_strtol(buf, NULL, 10); 620 621 mutex_lock(&data->update_lock); 622 data->in_crit[attr->index-11] = IN_TO_REG(val, data->in_vref); 623 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_CRIT, 624 data->in_crit[attr->index-11]); 625 mutex_unlock(&data->update_lock); 626 return count; 627} 628 629/* the +11 term below reflects the fact that VLM units 11,12,13 are 630 used in the chip to measure voltage across the thermistors 631*/ 632static struct sensor_device_attribute therm_input[] = { 633 SENSOR_ATTR(temp4_input, S_IRUGO, show_therm_input, NULL, 0+11), 634 SENSOR_ATTR(temp5_input, S_IRUGO, show_therm_input, NULL, 1+11), 635 SENSOR_ATTR(temp6_input, S_IRUGO, show_therm_input, NULL, 2+11), 636}; 637static struct sensor_device_attribute therm_status[] = { 638 SENSOR_ATTR(temp4_status, S_IRUGO, show_therm_status, NULL, 0+11), 639 SENSOR_ATTR(temp5_status, S_IRUGO, show_therm_status, NULL, 1+11), 640 SENSOR_ATTR(temp6_status, S_IRUGO, show_therm_status, NULL, 2+11), 641}; 642static struct sensor_device_attribute therm_min[] = { 643 SENSOR_ATTR(temp4_min, S_IRUGO | S_IWUSR, 644 show_therm_min, set_therm_min, 0+11), 645 SENSOR_ATTR(temp5_min, S_IRUGO | S_IWUSR, 646 show_therm_min, set_therm_min, 1+11), 647 SENSOR_ATTR(temp6_min, S_IRUGO | S_IWUSR, 648 show_therm_min, set_therm_min, 2+11), 649}; 650static struct sensor_device_attribute therm_max[] = { 651 SENSOR_ATTR(temp4_max, S_IRUGO | S_IWUSR, 652 show_therm_max, set_therm_max, 0+11), 653 SENSOR_ATTR(temp5_max, S_IRUGO | S_IWUSR, 654 show_therm_max, set_therm_max, 1+11), 655 SENSOR_ATTR(temp6_max, S_IRUGO | S_IWUSR, 656 show_therm_max, set_therm_max, 2+11), 657}; 658static struct sensor_device_attribute therm_crit[] = { 659 SENSOR_ATTR(temp4_crit, S_IRUGO | S_IWUSR, 660 show_therm_crit, set_therm_crit, 0+11), 661 SENSOR_ATTR(temp5_crit, S_IRUGO | S_IWUSR, 662 show_therm_crit, set_therm_crit, 1+11), 663 SENSOR_ATTR(temp6_crit, S_IRUGO | S_IWUSR, 664 show_therm_crit, set_therm_crit, 2+11), 665}; 666 667#define THERM_UNIT_ATTRS(X) \ 668 &therm_input[X].dev_attr.attr, \ 669 &therm_status[X].dev_attr.attr, \ 670 &therm_min[X].dev_attr.attr, \ 671 &therm_max[X].dev_attr.attr, \ 672 &therm_crit[X].dev_attr.attr 673 674static struct attribute * pc8736x_therm_attr_array[] = { 675 THERM_UNIT_ATTRS(0), 676 THERM_UNIT_ATTRS(1), 677 THERM_UNIT_ATTRS(2), 678 NULL 679}; 680static const struct attribute_group pc8736x_therm_group = { 681 .attrs = pc8736x_therm_attr_array, 682}; 683 684static ssize_t show_temp_input(struct device *dev, struct device_attribute *devattr, char *buf) 685{ 686 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 687 struct pc87360_data *data = pc87360_update_device(dev); 688 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[attr->index])); 689} 690static ssize_t show_temp_min(struct device *dev, struct device_attribute *devattr, char *buf) 691{ 692 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 693 struct pc87360_data *data = pc87360_update_device(dev); 694 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[attr->index])); 695} 696static ssize_t show_temp_max(struct device *dev, struct device_attribute *devattr, char *buf) 697{ 698 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 699 struct pc87360_data *data = pc87360_update_device(dev); 700 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[attr->index])); 701} 702static ssize_t show_temp_crit(struct device *dev, struct device_attribute *devattr, char *buf) 703{ 704 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 705 struct pc87360_data *data = pc87360_update_device(dev); 706 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[attr->index])); 707} 708static ssize_t show_temp_status(struct device *dev, struct device_attribute *devattr, char *buf) 709{ 710 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 711 struct pc87360_data *data = pc87360_update_device(dev); 712 return sprintf(buf, "%d\n", data->temp_status[attr->index]); 713} 714static ssize_t set_temp_min(struct device *dev, struct device_attribute *devattr, const char *buf, 715 size_t count) 716{ 717 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 718 struct i2c_client *client = to_i2c_client(dev); 719 struct pc87360_data *data = i2c_get_clientdata(client); 720 long val = simple_strtol(buf, NULL, 10); 721 722 mutex_lock(&data->update_lock); 723 data->temp_min[attr->index] = TEMP_TO_REG(val); 724 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MIN, 725 data->temp_min[attr->index]); 726 mutex_unlock(&data->update_lock); 727 return count; 728} 729static ssize_t set_temp_max(struct device *dev, struct device_attribute *devattr, const char *buf, 730 size_t count) 731{ 732 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 733 struct i2c_client *client = to_i2c_client(dev); 734 struct pc87360_data *data = i2c_get_clientdata(client); 735 long val = simple_strtol(buf, NULL, 10); 736 737 mutex_lock(&data->update_lock); 738 data->temp_max[attr->index] = TEMP_TO_REG(val); 739 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MAX, 740 data->temp_max[attr->index]); 741 mutex_unlock(&data->update_lock); 742 return count; 743} 744static ssize_t set_temp_crit(struct device *dev, struct device_attribute *devattr, const char *buf, 745 size_t count) 746{ 747 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 748 struct i2c_client *client = to_i2c_client(dev); 749 struct pc87360_data *data = i2c_get_clientdata(client); 750 long val = simple_strtol(buf, NULL, 10); 751 752 mutex_lock(&data->update_lock); 753 data->temp_crit[attr->index] = TEMP_TO_REG(val); 754 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_CRIT, 755 data->temp_crit[attr->index]); 756 mutex_unlock(&data->update_lock); 757 return count; 758} 759 760static struct sensor_device_attribute temp_input[] = { 761 SENSOR_ATTR(temp1_input, S_IRUGO, show_temp_input, NULL, 0), 762 SENSOR_ATTR(temp2_input, S_IRUGO, show_temp_input, NULL, 1), 763 SENSOR_ATTR(temp3_input, S_IRUGO, show_temp_input, NULL, 2), 764}; 765static struct sensor_device_attribute temp_status[] = { 766 SENSOR_ATTR(temp1_status, S_IRUGO, show_temp_status, NULL, 0), 767 SENSOR_ATTR(temp2_status, S_IRUGO, show_temp_status, NULL, 1), 768 SENSOR_ATTR(temp3_status, S_IRUGO, show_temp_status, NULL, 2), 769}; 770static struct sensor_device_attribute temp_min[] = { 771 SENSOR_ATTR(temp1_min, S_IRUGO | S_IWUSR, 772 show_temp_min, set_temp_min, 0), 773 SENSOR_ATTR(temp2_min, S_IRUGO | S_IWUSR, 774 show_temp_min, set_temp_min, 1), 775 SENSOR_ATTR(temp3_min, S_IRUGO | S_IWUSR, 776 show_temp_min, set_temp_min, 2), 777}; 778static struct sensor_device_attribute temp_max[] = { 779 SENSOR_ATTR(temp1_max, S_IRUGO | S_IWUSR, 780 show_temp_max, set_temp_max, 0), 781 SENSOR_ATTR(temp2_max, S_IRUGO | S_IWUSR, 782 show_temp_max, set_temp_max, 1), 783 SENSOR_ATTR(temp3_max, S_IRUGO | S_IWUSR, 784 show_temp_max, set_temp_max, 2), 785}; 786static struct sensor_device_attribute temp_crit[] = { 787 SENSOR_ATTR(temp1_crit, S_IRUGO | S_IWUSR, 788 show_temp_crit, set_temp_crit, 0), 789 SENSOR_ATTR(temp2_crit, S_IRUGO | S_IWUSR, 790 show_temp_crit, set_temp_crit, 1), 791 SENSOR_ATTR(temp3_crit, S_IRUGO | S_IWUSR, 792 show_temp_crit, set_temp_crit, 2), 793}; 794 795static ssize_t show_temp_alarms(struct device *dev, struct device_attribute *attr, char *buf) 796{ 797 struct pc87360_data *data = pc87360_update_device(dev); 798 return sprintf(buf, "%u\n", data->temp_alarms); 799} 800static DEVICE_ATTR(alarms_temp, S_IRUGO, show_temp_alarms, NULL); 801 802#define TEMP_UNIT_ATTRS(X) \ 803 &temp_input[X].dev_attr.attr, \ 804 &temp_status[X].dev_attr.attr, \ 805 &temp_min[X].dev_attr.attr, \ 806 &temp_max[X].dev_attr.attr, \ 807 &temp_crit[X].dev_attr.attr 808 809static struct attribute * pc8736x_temp_attr_array[] = { 810 TEMP_UNIT_ATTRS(0), 811 TEMP_UNIT_ATTRS(1), 812 TEMP_UNIT_ATTRS(2), 813 /* include the few miscellaneous atts here */ 814 &dev_attr_alarms_temp.attr, 815 NULL 816}; 817static const struct attribute_group pc8736x_temp_group = { 818 .attrs = pc8736x_temp_attr_array, 819}; 820 821/* 822 * Device detection, registration and update 823 */ 824 825static int __init pc87360_find(int sioaddr, u8 *devid, unsigned short *addresses) 826{ 827 u16 val; 828 int i; 829 int nrdev; /* logical device count */ 830 831 /* No superio_enter */ 832 833 /* Identify device */ 834 val = superio_inb(sioaddr, DEVID); 835 switch (val) { 836 case 0xE1: /* PC87360 */ 837 case 0xE8: /* PC87363 */ 838 case 0xE4: /* PC87364 */ 839 nrdev = 1; 840 break; 841 case 0xE5: /* PC87365 */ 842 case 0xE9: /* PC87366 */ 843 nrdev = 3; 844 break; 845 default: 846 superio_exit(sioaddr); 847 return -ENODEV; 848 } 849 /* Remember the device id */ 850 *devid = val; 851 852 for (i = 0; i < nrdev; i++) { 853 /* select logical device */ 854 superio_outb(sioaddr, DEV, logdev[i]); 855 856 val = superio_inb(sioaddr, ACT); 857 if (!(val & 0x01)) { 858 printk(KERN_INFO "pc87360: Device 0x%02x not " 859 "activated\n", logdev[i]); 860 continue; 861 } 862 863 val = (superio_inb(sioaddr, BASE) << 8) 864 | superio_inb(sioaddr, BASE + 1); 865 if (!val) { 866 printk(KERN_INFO "pc87360: Base address not set for " 867 "device 0x%02x\n", logdev[i]); 868 continue; 869 } 870 871 addresses[i] = val; 872 873 if (i==0) { /* Fans */ 874 confreg[0] = superio_inb(sioaddr, 0xF0); 875 confreg[1] = superio_inb(sioaddr, 0xF1); 876 877#ifdef DEBUG 878 printk(KERN_DEBUG "pc87360: Fan 1: mon=%d " 879 "ctrl=%d inv=%d\n", (confreg[0]>>2)&1, 880 (confreg[0]>>3)&1, (confreg[0]>>4)&1); 881 printk(KERN_DEBUG "pc87360: Fan 2: mon=%d " 882 "ctrl=%d inv=%d\n", (confreg[0]>>5)&1, 883 (confreg[0]>>6)&1, (confreg[0]>>7)&1); 884 printk(KERN_DEBUG "pc87360: Fan 3: mon=%d " 885 "ctrl=%d inv=%d\n", confreg[1]&1, 886 (confreg[1]>>1)&1, (confreg[1]>>2)&1); 887#endif 888 } else if (i==1) { /* Voltages */ 889 /* Are we using thermistors? */ 890 if (*devid == 0xE9) { /* PC87366 */ 891 /* These registers are not logical-device 892 specific, just that we won't need them if 893 we don't use the VLM device */ 894 confreg[2] = superio_inb(sioaddr, 0x2B); 895 confreg[3] = superio_inb(sioaddr, 0x25); 896 897 if (confreg[2] & 0x40) { 898 printk(KERN_INFO "pc87360: Using " 899 "thermistors for temperature " 900 "monitoring\n"); 901 } 902 if (confreg[3] & 0xE0) { 903 printk(KERN_INFO "pc87360: VID " 904 "inputs routed (mode %u)\n", 905 confreg[3] >> 5); 906 } 907 } 908 } 909 } 910 911 superio_exit(sioaddr); 912 return 0; 913} 914 915static int pc87360_detect(struct i2c_adapter *adapter) 916{ 917 int i; 918 struct i2c_client *client; 919 struct pc87360_data *data; 920 int err = 0; 921 const char *name = "pc87360"; 922 int use_thermistors = 0; 923 struct device *dev; 924 925 if (!(data = kzalloc(sizeof(struct pc87360_data), GFP_KERNEL))) 926 return -ENOMEM; 927 928 client = &data->client; 929 dev = &client->dev; 930 i2c_set_clientdata(client, data); 931 client->addr = address; 932 mutex_init(&data->lock); 933 client->adapter = adapter; 934 client->driver = &pc87360_driver; 935 client->flags = 0; 936 937 data->fannr = 2; 938 data->innr = 0; 939 data->tempnr = 0; 940 941 switch (devid) { 942 case 0xe8: 943 name = "pc87363"; 944 break; 945 case 0xe4: 946 name = "pc87364"; 947 data->fannr = 3; 948 break; 949 case 0xe5: 950 name = "pc87365"; 951 data->fannr = extra_isa[0] ? 3 : 0; 952 data->innr = extra_isa[1] ? 11 : 0; 953 data->tempnr = extra_isa[2] ? 2 : 0; 954 break; 955 case 0xe9: 956 name = "pc87366"; 957 data->fannr = extra_isa[0] ? 3 : 0; 958 data->innr = extra_isa[1] ? 14 : 0; 959 data->tempnr = extra_isa[2] ? 3 : 0; 960 break; 961 } 962 963 strlcpy(client->name, name, sizeof(client->name)); 964 data->valid = 0; 965 mutex_init(&data->update_lock); 966 967 for (i = 0; i < 3; i++) { 968 if (((data->address[i] = extra_isa[i])) 969 && !request_region(extra_isa[i], PC87360_EXTENT, 970 pc87360_driver.driver.name)) { 971 dev_err(&client->dev, "Region 0x%x-0x%x already " 972 "in use!\n", extra_isa[i], 973 extra_isa[i]+PC87360_EXTENT-1); 974 for (i--; i >= 0; i--) 975 release_region(extra_isa[i], PC87360_EXTENT); 976 err = -EBUSY; 977 goto ERROR1; 978 } 979 } 980 981 /* Retrieve the fans configuration from Super-I/O space */ 982 if (data->fannr) 983 data->fan_conf = confreg[0] | (confreg[1] << 8); 984 985 if ((err = i2c_attach_client(client))) 986 goto ERROR2; 987 988 /* Use the correct reference voltage 989 Unless both the VLM and the TMS logical devices agree to 990 use an external Vref, the internal one is used. */ 991 if (data->innr) { 992 i = pc87360_read_value(data, LD_IN, NO_BANK, 993 PC87365_REG_IN_CONFIG); 994 if (data->tempnr) { 995 i &= pc87360_read_value(data, LD_TEMP, NO_BANK, 996 PC87365_REG_TEMP_CONFIG); 997 } 998 data->in_vref = (i&0x02) ? 3025 : 2966; 999 dev_dbg(&client->dev, "Using %s reference voltage\n", 1000 (i&0x02) ? "external" : "internal"); 1001 1002 data->vid_conf = confreg[3]; 1003 data->vrm = vid_which_vrm(); 1004 } 1005 1006 /* Fan clock dividers may be needed before any data is read */ 1007 for (i = 0; i < data->fannr; i++) { 1008 if (FAN_CONFIG_MONITOR(data->fan_conf, i)) 1009 data->fan_status[i] = pc87360_read_value(data, 1010 LD_FAN, NO_BANK, 1011 PC87360_REG_FAN_STATUS(i)); 1012 } 1013 1014 if (init > 0) { 1015 if (devid == 0xe9 && data->address[1]) /* PC87366 */ 1016 use_thermistors = confreg[2] & 0x40; 1017 1018 pc87360_init_client(client, use_thermistors); 1019 } 1020 1021 /* Register all-or-nothing sysfs groups */ 1022 1023 if (data->innr && 1024 (err = sysfs_create_group(&client->dev.kobj, 1025 &pc8736x_vin_group))) 1026 goto ERROR3; 1027 1028 if (data->innr == 14 && 1029 (err = sysfs_create_group(&client->dev.kobj, 1030 &pc8736x_therm_group))) 1031 goto ERROR3; 1032 1033 /* create device attr-files for varying sysfs groups */ 1034 1035 if (data->tempnr) { 1036 for (i = 0; i < data->tempnr; i++) { 1037 if ((err = device_create_file(dev, 1038 &temp_input[i].dev_attr)) 1039 || (err = device_create_file(dev, 1040 &temp_min[i].dev_attr)) 1041 || (err = device_create_file(dev, 1042 &temp_max[i].dev_attr)) 1043 || (err = device_create_file(dev, 1044 &temp_crit[i].dev_attr)) 1045 || (err = device_create_file(dev, 1046 &temp_status[i].dev_attr))) 1047 goto ERROR3; 1048 } 1049 if ((err = device_create_file(dev, &dev_attr_alarms_temp))) 1050 goto ERROR3; 1051 } 1052 1053 for (i = 0; i < data->fannr; i++) { 1054 if (FAN_CONFIG_MONITOR(data->fan_conf, i) 1055 && ((err = device_create_file(dev, 1056 &fan_input[i].dev_attr)) 1057 || (err = device_create_file(dev, 1058 &fan_min[i].dev_attr)) 1059 || (err = device_create_file(dev, 1060 &fan_div[i].dev_attr)) 1061 || (err = device_create_file(dev, 1062 &fan_status[i].dev_attr)))) 1063 goto ERROR3; 1064 1065 if (FAN_CONFIG_CONTROL(data->fan_conf, i) 1066 && (err = device_create_file(dev, &pwm[i].dev_attr))) 1067 goto ERROR3; 1068 } 1069 1070 data->class_dev = hwmon_device_register(&client->dev); 1071 if (IS_ERR(data->class_dev)) { 1072 err = PTR_ERR(data->class_dev); 1073 goto ERROR3; 1074 } 1075 return 0; 1076 1077ERROR3: 1078 /* can still remove groups whose members were added individually */ 1079 sysfs_remove_group(&client->dev.kobj, &pc8736x_temp_group); 1080 sysfs_remove_group(&client->dev.kobj, &pc8736x_fan_group); 1081 sysfs_remove_group(&client->dev.kobj, &pc8736x_therm_group); 1082 sysfs_remove_group(&client->dev.kobj, &pc8736x_vin_group); 1083 1084 i2c_detach_client(client); 1085ERROR2: 1086 for (i = 0; i < 3; i++) { 1087 if (data->address[i]) { 1088 release_region(data->address[i], PC87360_EXTENT); 1089 } 1090 } 1091ERROR1: 1092 kfree(data); 1093 return err; 1094} 1095 1096static int pc87360_detach_client(struct i2c_client *client) 1097{ 1098 struct pc87360_data *data = i2c_get_clientdata(client); 1099 int i; 1100 1101 hwmon_device_unregister(data->class_dev); 1102 1103 sysfs_remove_group(&client->dev.kobj, &pc8736x_temp_group); 1104 sysfs_remove_group(&client->dev.kobj, &pc8736x_fan_group); 1105 sysfs_remove_group(&client->dev.kobj, &pc8736x_therm_group); 1106 sysfs_remove_group(&client->dev.kobj, &pc8736x_vin_group); 1107 1108 if ((i = i2c_detach_client(client))) 1109 return i; 1110 1111 for (i = 0; i < 3; i++) { 1112 if (data->address[i]) { 1113 release_region(data->address[i], PC87360_EXTENT); 1114 } 1115 } 1116 kfree(data); 1117 1118 return 0; 1119} 1120 1121/* ldi is the logical device index 1122 bank is for voltages and temperatures only */ 1123static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank, 1124 u8 reg) 1125{ 1126 int res; 1127 1128 mutex_lock(&(data->lock)); 1129 if (bank != NO_BANK) 1130 outb_p(bank, data->address[ldi] + PC87365_REG_BANK); 1131 res = inb_p(data->address[ldi] + reg); 1132 mutex_unlock(&(data->lock)); 1133 1134 return res; 1135} 1136 1137static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank, 1138 u8 reg, u8 value) 1139{ 1140 mutex_lock(&(data->lock)); 1141 if (bank != NO_BANK) 1142 outb_p(bank, data->address[ldi] + PC87365_REG_BANK); 1143 outb_p(value, data->address[ldi] + reg); 1144 mutex_unlock(&(data->lock)); 1145} 1146 1147static void pc87360_init_client(struct i2c_client *client, int use_thermistors) 1148{ 1149 struct pc87360_data *data = i2c_get_clientdata(client); 1150 int i, nr; 1151 const u8 init_in[14] = { 2, 2, 2, 2, 2, 2, 2, 1, 1, 3, 1, 2, 2, 2 }; 1152 const u8 init_temp[3] = { 2, 2, 1 }; 1153 u8 reg; 1154 1155 if (init >= 2 && data->innr) { 1156 reg = pc87360_read_value(data, LD_IN, NO_BANK, 1157 PC87365_REG_IN_CONVRATE); 1158 dev_info(&client->dev, "VLM conversion set to " 1159 "1s period, 160us delay\n"); 1160 pc87360_write_value(data, LD_IN, NO_BANK, 1161 PC87365_REG_IN_CONVRATE, 1162 (reg & 0xC0) | 0x11); 1163 } 1164 1165 nr = data->innr < 11 ? data->innr : 11; 1166 for (i = 0; i < nr; i++) { 1167 if (init >= init_in[i]) { 1168 /* Forcibly enable voltage channel */ 1169 reg = pc87360_read_value(data, LD_IN, i, 1170 PC87365_REG_IN_STATUS); 1171 if (!(reg & 0x01)) { 1172 dev_dbg(&client->dev, "Forcibly " 1173 "enabling in%d\n", i); 1174 pc87360_write_value(data, LD_IN, i, 1175 PC87365_REG_IN_STATUS, 1176 (reg & 0x68) | 0x87); 1177 } 1178 } 1179 } 1180 1181 /* We can't blindly trust the Super-I/O space configuration bit, 1182 most BIOS won't set it properly */ 1183 for (i = 11; i < data->innr; i++) { 1184 reg = pc87360_read_value(data, LD_IN, i, 1185 PC87365_REG_TEMP_STATUS); 1186 use_thermistors = use_thermistors || (reg & 0x01); 1187 } 1188 1189 i = use_thermistors ? 2 : 0; 1190 for (; i < data->tempnr; i++) { 1191 if (init >= init_temp[i]) { 1192 /* Forcibly enable temperature channel */ 1193 reg = pc87360_read_value(data, LD_TEMP, i, 1194 PC87365_REG_TEMP_STATUS); 1195 if (!(reg & 0x01)) { 1196 dev_dbg(&client->dev, "Forcibly " 1197 "enabling temp%d\n", i+1); 1198 pc87360_write_value(data, LD_TEMP, i, 1199 PC87365_REG_TEMP_STATUS, 1200 0xCF); 1201 } 1202 } 1203 } 1204 1205 if (use_thermistors) { 1206 for (i = 11; i < data->innr; i++) { 1207 if (init >= init_in[i]) { 1208 /* The pin may already be used by thermal 1209 diodes */ 1210 reg = pc87360_read_value(data, LD_TEMP, 1211 (i-11)/2, PC87365_REG_TEMP_STATUS); 1212 if (reg & 0x01) { 1213 dev_dbg(&client->dev, "Skipping " 1214 "temp%d, pin already in use " 1215 "by temp%d\n", i-7, (i-11)/2); 1216 continue; 1217 } 1218 1219 /* Forcibly enable thermistor channel */ 1220 reg = pc87360_read_value(data, LD_IN, i, 1221 PC87365_REG_IN_STATUS); 1222 if (!(reg & 0x01)) { 1223 dev_dbg(&client->dev, "Forcibly " 1224 "enabling temp%d\n", i-7); 1225 pc87360_write_value(data, LD_IN, i, 1226 PC87365_REG_TEMP_STATUS, 1227 (reg & 0x60) | 0x8F); 1228 } 1229 } 1230 } 1231 } 1232 1233 if (data->innr) { 1234 reg = pc87360_read_value(data, LD_IN, NO_BANK, 1235 PC87365_REG_IN_CONFIG); 1236 if (reg & 0x01) { 1237 dev_dbg(&client->dev, "Forcibly " 1238 "enabling monitoring (VLM)\n"); 1239 pc87360_write_value(data, LD_IN, NO_BANK, 1240 PC87365_REG_IN_CONFIG, 1241 reg & 0xFE); 1242 } 1243 } 1244 1245 if (data->tempnr) { 1246 reg = pc87360_read_value(data, LD_TEMP, NO_BANK, 1247 PC87365_REG_TEMP_CONFIG); 1248 if (reg & 0x01) { 1249 dev_dbg(&client->dev, "Forcibly enabling " 1250 "monitoring (TMS)\n"); 1251 pc87360_write_value(data, LD_TEMP, NO_BANK, 1252 PC87365_REG_TEMP_CONFIG, 1253 reg & 0xFE); 1254 } 1255 1256 if (init >= 2) { 1257 /* Chip config as documented by National Semi. */ 1258 pc87360_write_value(data, LD_TEMP, 0xF, 0xA, 0x08); 1259 /* We voluntarily omit the bank here, in case the 1260 sequence itself matters. It shouldn't be a problem, 1261 since nobody else is supposed to access the 1262 device at that point. */ 1263 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xB, 0x04); 1264 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xC, 0x35); 1265 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xD, 0x05); 1266 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xE, 0x05); 1267 } 1268 } 1269} 1270 1271static void pc87360_autodiv(struct i2c_client *client, int nr) 1272{ 1273 struct pc87360_data *data = i2c_get_clientdata(client); 1274 u8 old_min = data->fan_min[nr]; 1275 1276 /* Increase clock divider if needed and possible */ 1277 if ((data->fan_status[nr] & 0x04) /* overflow flag */ 1278 || (data->fan[nr] >= 224)) { /* next to overflow */ 1279 if ((data->fan_status[nr] & 0x60) != 0x60) { 1280 data->fan_status[nr] += 0x20; 1281 data->fan_min[nr] >>= 1; 1282 data->fan[nr] >>= 1; 1283 dev_dbg(&client->dev, "Increasing " 1284 "clock divider to %d for fan %d\n", 1285 FAN_DIV_FROM_REG(data->fan_status[nr]), nr+1); 1286 } 1287 } else { 1288 /* Decrease clock divider if possible */ 1289 while (!(data->fan_min[nr] & 0x80) /* min "nails" divider */ 1290 && data->fan[nr] < 85 /* bad accuracy */ 1291 && (data->fan_status[nr] & 0x60) != 0x00) { 1292 data->fan_status[nr] -= 0x20; 1293 data->fan_min[nr] <<= 1; 1294 data->fan[nr] <<= 1; 1295 dev_dbg(&client->dev, "Decreasing " 1296 "clock divider to %d for fan %d\n", 1297 FAN_DIV_FROM_REG(data->fan_status[nr]), 1298 nr+1); 1299 } 1300 } 1301 1302 /* Write new fan min if it changed */ 1303 if (old_min != data->fan_min[nr]) { 1304 pc87360_write_value(data, LD_FAN, NO_BANK, 1305 PC87360_REG_FAN_MIN(nr), 1306 data->fan_min[nr]); 1307 } 1308} 1309 1310static struct pc87360_data *pc87360_update_device(struct device *dev) 1311{ 1312 struct i2c_client *client = to_i2c_client(dev); 1313 struct pc87360_data *data = i2c_get_clientdata(client); 1314 u8 i; 1315 1316 mutex_lock(&data->update_lock); 1317 1318 if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) { 1319 dev_dbg(&client->dev, "Data update\n"); 1320 1321 /* Fans */ 1322 for (i = 0; i < data->fannr; i++) { 1323 if (FAN_CONFIG_MONITOR(data->fan_conf, i)) { 1324 data->fan_status[i] = 1325 pc87360_read_value(data, LD_FAN, 1326 NO_BANK, PC87360_REG_FAN_STATUS(i)); 1327 data->fan[i] = pc87360_read_value(data, LD_FAN, 1328 NO_BANK, PC87360_REG_FAN(i)); 1329 data->fan_min[i] = pc87360_read_value(data, 1330 LD_FAN, NO_BANK, 1331 PC87360_REG_FAN_MIN(i)); 1332 /* Change clock divider if needed */ 1333 pc87360_autodiv(client, i); 1334 /* Clear bits and write new divider */ 1335 pc87360_write_value(data, LD_FAN, NO_BANK, 1336 PC87360_REG_FAN_STATUS(i), 1337 data->fan_status[i]); 1338 } 1339 if (FAN_CONFIG_CONTROL(data->fan_conf, i)) 1340 data->pwm[i] = pc87360_read_value(data, LD_FAN, 1341 NO_BANK, PC87360_REG_PWM(i)); 1342 } 1343 1344 /* Voltages */ 1345 for (i = 0; i < data->innr; i++) { 1346 data->in_status[i] = pc87360_read_value(data, LD_IN, i, 1347 PC87365_REG_IN_STATUS); 1348 /* Clear bits */ 1349 pc87360_write_value(data, LD_IN, i, 1350 PC87365_REG_IN_STATUS, 1351 data->in_status[i]); 1352 if ((data->in_status[i] & 0x81) == 0x81) { 1353 data->in[i] = pc87360_read_value(data, LD_IN, 1354 i, PC87365_REG_IN); 1355 } 1356 if (data->in_status[i] & 0x01) { 1357 data->in_min[i] = pc87360_read_value(data, 1358 LD_IN, i, 1359 PC87365_REG_IN_MIN); 1360 data->in_max[i] = pc87360_read_value(data, 1361 LD_IN, i, 1362 PC87365_REG_IN_MAX); 1363 if (i >= 11) 1364 data->in_crit[i-11] = 1365 pc87360_read_value(data, LD_IN, 1366 i, PC87365_REG_TEMP_CRIT); 1367 } 1368 } 1369 if (data->innr) { 1370 data->in_alarms = pc87360_read_value(data, LD_IN, 1371 NO_BANK, PC87365_REG_IN_ALARMS1) 1372 | ((pc87360_read_value(data, LD_IN, 1373 NO_BANK, PC87365_REG_IN_ALARMS2) 1374 & 0x07) << 8); 1375 data->vid = (data->vid_conf & 0xE0) ? 1376 pc87360_read_value(data, LD_IN, 1377 NO_BANK, PC87365_REG_VID) : 0x1F; 1378 } 1379 1380 /* Temperatures */ 1381 for (i = 0; i < data->tempnr; i++) { 1382 data->temp_status[i] = pc87360_read_value(data, 1383 LD_TEMP, i, 1384 PC87365_REG_TEMP_STATUS); 1385 /* Clear bits */ 1386 pc87360_write_value(data, LD_TEMP, i, 1387 PC87365_REG_TEMP_STATUS, 1388 data->temp_status[i]); 1389 if ((data->temp_status[i] & 0x81) == 0x81) { 1390 data->temp[i] = pc87360_read_value(data, 1391 LD_TEMP, i, 1392 PC87365_REG_TEMP); 1393 } 1394 if (data->temp_status[i] & 0x01) { 1395 data->temp_min[i] = pc87360_read_value(data, 1396 LD_TEMP, i, 1397 PC87365_REG_TEMP_MIN); 1398 data->temp_max[i] = pc87360_read_value(data, 1399 LD_TEMP, i, 1400 PC87365_REG_TEMP_MAX); 1401 data->temp_crit[i] = pc87360_read_value(data, 1402 LD_TEMP, i, 1403 PC87365_REG_TEMP_CRIT); 1404 } 1405 } 1406 if (data->tempnr) { 1407 data->temp_alarms = pc87360_read_value(data, LD_TEMP, 1408 NO_BANK, PC87365_REG_TEMP_ALARMS) 1409 & 0x3F; 1410 } 1411 1412 data->last_updated = jiffies; 1413 data->valid = 1; 1414 } 1415 1416 mutex_unlock(&data->update_lock); 1417 1418 return data; 1419} 1420 1421static int __init pc87360_init(void) 1422{ 1423 int i; 1424 1425 if (pc87360_find(0x2e, &devid, extra_isa) 1426 && pc87360_find(0x4e, &devid, extra_isa)) { 1427 printk(KERN_WARNING "pc87360: PC8736x not detected, " 1428 "module not inserted.\n"); 1429 return -ENODEV; 1430 } 1431 1432 /* Arbitrarily pick one of the addresses */ 1433 for (i = 0; i < 3; i++) { 1434 if (extra_isa[i] != 0x0000) { 1435 address = extra_isa[i]; 1436 break; 1437 } 1438 } 1439 1440 if (address == 0x0000) { 1441 printk(KERN_WARNING "pc87360: No active logical device, " 1442 "module not inserted.\n"); 1443 return -ENODEV; 1444 } 1445 1446 return i2c_isa_add_driver(&pc87360_driver); 1447} 1448 1449static void __exit pc87360_exit(void) 1450{ 1451 i2c_isa_del_driver(&pc87360_driver); 1452} 1453 1454 1455MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>"); 1456MODULE_DESCRIPTION("PC8736x hardware monitor"); 1457MODULE_LICENSE("GPL"); 1458 1459module_init(pc87360_init); 1460module_exit(pc87360_exit); 1461