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 <asm/io.h> 47 48 static u8 devid; 49 static unsigned short address; 50 static unsigned short extra_isa[3]; 51 static u8 confreg[4]; 52 53 enum chips { any_chip, pc87360, pc87363, pc87364, pc87365, pc87366 }; 54 55 static int init = 1; 56 module_param(init, int, 0); 57 MODULE_PARM_DESC(init, 58 "Chip initialization level:\n" 59 " 0: None\n" 60 "*1: Forcibly enable internal voltage and temperature channels, except in9\n" 61 " 2: Forcibly enable all voltage and temperature channels, except in9\n" 62 " 3: Forcibly enable all voltage and temperature channels, including in9"); 63 64 /* 65 * Super-I/O registers and operations 66 */ 67 68 #define DEV 0x07 /* Register: Logical device select */ 69 #define DEVID 0x20 /* Register: Device ID */ 70 #define ACT 0x30 /* Register: Device activation */ 71 #define BASE 0x60 /* Register: Base address */ 72 73 #define FSCM 0x09 /* Logical device: fans */ 74 #define VLM 0x0d /* Logical device: voltages */ 75 #define TMS 0x0e /* Logical device: temperatures */ 76 static const u8 logdev[3] = { FSCM, VLM, TMS }; 77 78 #define LD_FAN 0 79 #define LD_IN 1 80 #define LD_TEMP 2 81 82 static inline void superio_outb(int sioaddr, int reg, int val) 83 { 84 outb(reg, sioaddr); 85 outb(val, sioaddr+1); 86 } 87 88 static inline int superio_inb(int sioaddr, int reg) 89 { 90 outb(reg, sioaddr); 91 return inb(sioaddr+1); 92 } 93 94 static inline void superio_exit(int sioaddr) 95 { 96 outb(0x02, sioaddr); 97 outb(0x02, sioaddr+1); 98 } 99 100 /* 101 * Logical devices 102 */ 103 104 #define PC87360_EXTENT 0x10 105 #define PC87365_REG_BANK 0x09 106 #define NO_BANK 0xff 107 108 /* 109 * Fan registers and conversions 110 */ 111 112 /* nr has to be 0 or 1 (PC87360/87363) or 2 (PC87364/87365/87366) */ 113 #define PC87360_REG_PRESCALE(nr) (0x00 + 2 * (nr)) 114 #define PC87360_REG_PWM(nr) (0x01 + 2 * (nr)) 115 #define PC87360_REG_FAN_MIN(nr) (0x06 + 3 * (nr)) 116 #define PC87360_REG_FAN(nr) (0x07 + 3 * (nr)) 117 #define PC87360_REG_FAN_STATUS(nr) (0x08 + 3 * (nr)) 118 119 #define FAN_FROM_REG(val,div) ((val) == 0 ? 0: \ 120 480000 / ((val)*(div))) 121 #define FAN_TO_REG(val,div) ((val) <= 100 ? 0 : \ 122 480000 / ((val)*(div))) 123 #define FAN_DIV_FROM_REG(val) (1 << ((val >> 5) & 0x03)) 124 #define FAN_STATUS_FROM_REG(val) ((val) & 0x07) 125 126 #define FAN_CONFIG_MONITOR(val,nr) (((val) >> (2 + nr * 3)) & 1) 127 #define FAN_CONFIG_CONTROL(val,nr) (((val) >> (3 + nr * 3)) & 1) 128 #define FAN_CONFIG_INVERT(val,nr) (((val) >> (4 + nr * 3)) & 1) 129 130 #define PWM_FROM_REG(val,inv) ((inv) ? 255 - (val) : (val)) 131 static inline u8 PWM_TO_REG(int val, int inv) 132 { 133 if (inv) 134 val = 255 - val; 135 if (val < 0) 136 return 0; 137 if (val > 255) 138 return 255; 139 return val; 140 } 141 142 /* 143 * Voltage registers and conversions 144 */ 145 146 #define PC87365_REG_IN_CONVRATE 0x07 147 #define PC87365_REG_IN_CONFIG 0x08 148 #define PC87365_REG_IN 0x0B 149 #define PC87365_REG_IN_MIN 0x0D 150 #define PC87365_REG_IN_MAX 0x0C 151 #define PC87365_REG_IN_STATUS 0x0A 152 #define PC87365_REG_IN_ALARMS1 0x00 153 #define PC87365_REG_IN_ALARMS2 0x01 154 #define PC87365_REG_VID 0x06 155 156 #define IN_FROM_REG(val,ref) (((val) * (ref) + 128) / 256) 157 #define IN_TO_REG(val,ref) ((val) < 0 ? 0 : \ 158 (val)*256 >= (ref)*255 ? 255: \ 159 ((val) * 256 + (ref)/2) / (ref)) 160 161 /* 162 * Temperature registers and conversions 163 */ 164 165 #define PC87365_REG_TEMP_CONFIG 0x08 166 #define PC87365_REG_TEMP 0x0B 167 #define PC87365_REG_TEMP_MIN 0x0D 168 #define PC87365_REG_TEMP_MAX 0x0C 169 #define PC87365_REG_TEMP_CRIT 0x0E 170 #define PC87365_REG_TEMP_STATUS 0x0A 171 #define PC87365_REG_TEMP_ALARMS 0x00 172 173 #define TEMP_FROM_REG(val) ((val) * 1000) 174 #define TEMP_TO_REG(val) ((val) < -55000 ? -55 : \ 175 (val) > 127000 ? 127 : \ 176 (val) < 0 ? ((val) - 500) / 1000 : \ 177 ((val) + 500) / 1000) 178 179 /* 180 * Client data (each client gets its own) 181 */ 182 183 struct pc87360_data { 184 struct i2c_client client; 185 struct class_device *class_dev; 186 struct semaphore lock; 187 struct semaphore update_lock; 188 char valid; /* !=0 if following fields are valid */ 189 unsigned long last_updated; /* In jiffies */ 190 191 int address[3]; 192 193 u8 fannr, innr, tempnr; 194 195 u8 fan[3]; /* Register value */ 196 u8 fan_min[3]; /* Register value */ 197 u8 fan_status[3]; /* Register value */ 198 u8 pwm[3]; /* Register value */ 199 u16 fan_conf; /* Configuration register values, combined */ 200 201 u16 in_vref; /* 1 mV/bit */ 202 u8 in[14]; /* Register value */ 203 u8 in_min[14]; /* Register value */ 204 u8 in_max[14]; /* Register value */ 205 u8 in_crit[3]; /* Register value */ 206 u8 in_status[14]; /* Register value */ 207 u16 in_alarms; /* Register values, combined, masked */ 208 u8 vid_conf; /* Configuration register value */ 209 u8 vrm; 210 u8 vid; /* Register value */ 211 212 s8 temp[3]; /* Register value */ 213 s8 temp_min[3]; /* Register value */ 214 s8 temp_max[3]; /* Register value */ 215 s8 temp_crit[3]; /* Register value */ 216 u8 temp_status[3]; /* Register value */ 217 u8 temp_alarms; /* Register value, masked */ 218 }; 219 220 /* 221 * Functions declaration 222 */ 223 224 static int pc87360_detect(struct i2c_adapter *adapter); 225 static int pc87360_detach_client(struct i2c_client *client); 226 227 static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank, 228 u8 reg); 229 static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank, 230 u8 reg, u8 value); 231 static void pc87360_init_client(struct i2c_client *client, int use_thermistors); 232 static struct pc87360_data *pc87360_update_device(struct device *dev); 233 234 /* 235 * Driver data (common to all clients) 236 */ 237 238 static struct i2c_driver pc87360_driver = { 239 .driver = { 240 .name = "pc87360", 241 }, 242 .attach_adapter = pc87360_detect, 243 .detach_client = pc87360_detach_client, 244 }; 245 246 /* 247 * Sysfs stuff 248 */ 249 250 static ssize_t show_fan_input(struct device *dev, struct device_attribute *devattr, char *buf) 251 { 252 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 253 struct pc87360_data *data = pc87360_update_device(dev); 254 return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan[attr->index], 255 FAN_DIV_FROM_REG(data->fan_status[attr->index]))); 256 } 257 static ssize_t show_fan_min(struct device *dev, struct device_attribute *devattr, char *buf) 258 { 259 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 260 struct pc87360_data *data = pc87360_update_device(dev); 261 return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan_min[attr->index], 262 FAN_DIV_FROM_REG(data->fan_status[attr->index]))); 263 } 264 static ssize_t show_fan_div(struct device *dev, struct device_attribute *devattr, char *buf) 265 { 266 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 267 struct pc87360_data *data = pc87360_update_device(dev); 268 return sprintf(buf, "%u\n", 269 FAN_DIV_FROM_REG(data->fan_status[attr->index])); 270 } 271 static ssize_t show_fan_status(struct device *dev, struct device_attribute *devattr, char *buf) 272 { 273 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 274 struct pc87360_data *data = pc87360_update_device(dev); 275 return sprintf(buf, "%u\n", 276 FAN_STATUS_FROM_REG(data->fan_status[attr->index])); 277 } 278 static ssize_t set_fan_min(struct device *dev, struct device_attribute *devattr, const char *buf, 279 size_t count) 280 { 281 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 282 struct i2c_client *client = to_i2c_client(dev); 283 struct pc87360_data *data = i2c_get_clientdata(client); 284 long fan_min = simple_strtol(buf, NULL, 10); 285 286 down(&data->update_lock); 287 fan_min = FAN_TO_REG(fan_min, FAN_DIV_FROM_REG(data->fan_status[attr->index])); 288 289 /* If it wouldn't fit, change clock divisor */ 290 while (fan_min > 255 291 && (data->fan_status[attr->index] & 0x60) != 0x60) { 292 fan_min >>= 1; 293 data->fan[attr->index] >>= 1; 294 data->fan_status[attr->index] += 0x20; 295 } 296 data->fan_min[attr->index] = fan_min > 255 ? 255 : fan_min; 297 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_MIN(attr->index), 298 data->fan_min[attr->index]); 299 300 /* Write new divider, preserve alarm bits */ 301 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_STATUS(attr->index), 302 data->fan_status[attr->index] & 0xF9); 303 up(&data->update_lock); 304 305 return count; 306 } 307 308 #define show_and_set_fan(offset) \ 309 static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \ 310 show_fan_input, NULL, offset-1); \ 311 static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IWUSR | S_IRUGO, \ 312 show_fan_min, set_fan_min, offset-1); \ 313 static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO, \ 314 show_fan_div, NULL, offset-1); \ 315 static SENSOR_DEVICE_ATTR(fan##offset##_status, S_IRUGO, \ 316 show_fan_status, NULL, offset-1); 317 show_and_set_fan(1) 318 show_and_set_fan(2) 319 show_and_set_fan(3) 320 321 static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr, char *buf) 322 { 323 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 324 struct pc87360_data *data = pc87360_update_device(dev); 325 return sprintf(buf, "%u\n", 326 PWM_FROM_REG(data->pwm[attr->index], 327 FAN_CONFIG_INVERT(data->fan_conf, 328 attr->index))); 329 } 330 static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr, const char *buf, 331 size_t count) 332 { 333 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 334 struct i2c_client *client = to_i2c_client(dev); 335 struct pc87360_data *data = i2c_get_clientdata(client); 336 long val = simple_strtol(buf, NULL, 10); 337 338 down(&data->update_lock); 339 data->pwm[attr->index] = PWM_TO_REG(val, 340 FAN_CONFIG_INVERT(data->fan_conf, attr->index)); 341 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_PWM(attr->index), 342 data->pwm[attr->index]); 343 up(&data->update_lock); 344 return count; 345 } 346 347 #define show_and_set_pwm(offset) \ 348 static SENSOR_DEVICE_ATTR(pwm##offset, S_IWUSR | S_IRUGO, \ 349 show_pwm, set_pwm, offset-1); 350 show_and_set_pwm(1) 351 show_and_set_pwm(2) 352 show_and_set_pwm(3) 353 354 static ssize_t show_in_input(struct device *dev, struct device_attribute *devattr, char *buf) 355 { 356 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 357 struct pc87360_data *data = pc87360_update_device(dev); 358 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index], 359 data->in_vref)); 360 } 361 static ssize_t show_in_min(struct device *dev, struct device_attribute *devattr, char *buf) 362 { 363 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 364 struct pc87360_data *data = pc87360_update_device(dev); 365 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index], 366 data->in_vref)); 367 } 368 static ssize_t show_in_max(struct device *dev, struct device_attribute *devattr, char *buf) 369 { 370 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 371 struct pc87360_data *data = pc87360_update_device(dev); 372 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index], 373 data->in_vref)); 374 } 375 static ssize_t show_in_status(struct device *dev, struct device_attribute *devattr, char *buf) 376 { 377 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 378 struct pc87360_data *data = pc87360_update_device(dev); 379 return sprintf(buf, "%u\n", data->in_status[attr->index]); 380 } 381 static ssize_t set_in_min(struct device *dev, struct device_attribute *devattr, const char *buf, 382 size_t count) 383 { 384 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 385 struct i2c_client *client = to_i2c_client(dev); 386 struct pc87360_data *data = i2c_get_clientdata(client); 387 long val = simple_strtol(buf, NULL, 10); 388 389 down(&data->update_lock); 390 data->in_min[attr->index] = IN_TO_REG(val, data->in_vref); 391 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MIN, 392 data->in_min[attr->index]); 393 up(&data->update_lock); 394 return count; 395 } 396 static ssize_t set_in_max(struct device *dev, struct device_attribute *devattr, const char *buf, 397 size_t count) 398 { 399 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 400 struct i2c_client *client = to_i2c_client(dev); 401 struct pc87360_data *data = i2c_get_clientdata(client); 402 long val = simple_strtol(buf, NULL, 10); 403 404 down(&data->update_lock); 405 data->in_max[attr->index] = IN_TO_REG(val, 406 data->in_vref); 407 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MAX, 408 data->in_max[attr->index]); 409 up(&data->update_lock); 410 return count; 411 } 412 413 #define show_and_set_in(offset) \ 414 static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \ 415 show_in_input, NULL, offset); \ 416 static SENSOR_DEVICE_ATTR(in##offset##_min, S_IWUSR | S_IRUGO, \ 417 show_in_min, set_in_min, offset); \ 418 static SENSOR_DEVICE_ATTR(in##offset##_max, S_IWUSR | S_IRUGO, \ 419 show_in_max, set_in_max, offset); \ 420 static SENSOR_DEVICE_ATTR(in##offset##_status, S_IRUGO, \ 421 show_in_status, NULL, offset); 422 show_and_set_in(0) 423 show_and_set_in(1) 424 show_and_set_in(2) 425 show_and_set_in(3) 426 show_and_set_in(4) 427 show_and_set_in(5) 428 show_and_set_in(6) 429 show_and_set_in(7) 430 show_and_set_in(8) 431 show_and_set_in(9) 432 show_and_set_in(10) 433 434 static ssize_t show_therm_input(struct device *dev, struct device_attribute *devattr, char *buf) 435 { 436 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 437 struct pc87360_data *data = pc87360_update_device(dev); 438 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index], 439 data->in_vref)); 440 } 441 static ssize_t show_therm_min(struct device *dev, struct device_attribute *devattr, char *buf) 442 { 443 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 444 struct pc87360_data *data = pc87360_update_device(dev); 445 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index], 446 data->in_vref)); 447 } 448 static ssize_t show_therm_max(struct device *dev, struct device_attribute *devattr, char *buf) 449 { 450 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 451 struct pc87360_data *data = pc87360_update_device(dev); 452 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index], 453 data->in_vref)); 454 } 455 static ssize_t show_therm_crit(struct device *dev, struct device_attribute *devattr, char *buf) 456 { 457 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 458 struct pc87360_data *data = pc87360_update_device(dev); 459 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_crit[attr->index-11], 460 data->in_vref)); 461 } 462 static ssize_t show_therm_status(struct device *dev, struct device_attribute *devattr, char *buf) 463 { 464 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 465 struct pc87360_data *data = pc87360_update_device(dev); 466 return sprintf(buf, "%u\n", data->in_status[attr->index]); 467 } 468 static ssize_t set_therm_min(struct device *dev, struct device_attribute *devattr, const char *buf, 469 size_t count) 470 { 471 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 472 struct i2c_client *client = to_i2c_client(dev); 473 struct pc87360_data *data = i2c_get_clientdata(client); 474 long val = simple_strtol(buf, NULL, 10); 475 476 down(&data->update_lock); 477 data->in_min[attr->index] = IN_TO_REG(val, data->in_vref); 478 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MIN, 479 data->in_min[attr->index]); 480 up(&data->update_lock); 481 return count; 482 } 483 static ssize_t set_therm_max(struct device *dev, struct device_attribute *devattr, const char *buf, 484 size_t count) 485 { 486 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 487 struct i2c_client *client = to_i2c_client(dev); 488 struct pc87360_data *data = i2c_get_clientdata(client); 489 long val = simple_strtol(buf, NULL, 10); 490 491 down(&data->update_lock); 492 data->in_max[attr->index] = IN_TO_REG(val, data->in_vref); 493 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MAX, 494 data->in_max[attr->index]); 495 up(&data->update_lock); 496 return count; 497 } 498 static ssize_t set_therm_crit(struct device *dev, struct device_attribute *devattr, const char *buf, 499 size_t count) 500 { 501 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 502 struct i2c_client *client = to_i2c_client(dev); 503 struct pc87360_data *data = i2c_get_clientdata(client); 504 long val = simple_strtol(buf, NULL, 10); 505 506 down(&data->update_lock); 507 data->in_crit[attr->index-11] = IN_TO_REG(val, data->in_vref); 508 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_CRIT, 509 data->in_crit[attr->index-11]); 510 up(&data->update_lock); 511 return count; 512 } 513 514 #define show_and_set_therm(offset) \ 515 static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \ 516 show_therm_input, NULL, 11+offset-4); \ 517 static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IWUSR | S_IRUGO, \ 518 show_therm_min, set_therm_min, 11+offset-4); \ 519 static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IWUSR | S_IRUGO, \ 520 show_therm_max, set_therm_max, 11+offset-4); \ 521 static SENSOR_DEVICE_ATTR(temp##offset##_crit, S_IWUSR | S_IRUGO, \ 522 show_therm_crit, set_therm_crit, 11+offset-4); \ 523 static SENSOR_DEVICE_ATTR(temp##offset##_status, S_IRUGO, \ 524 show_therm_status, NULL, 11+offset-4); 525 show_and_set_therm(4) 526 show_and_set_therm(5) 527 show_and_set_therm(6) 528 529 static ssize_t show_vid(struct device *dev, struct device_attribute *attr, char *buf) 530 { 531 struct pc87360_data *data = pc87360_update_device(dev); 532 return sprintf(buf, "%u\n", vid_from_reg(data->vid, data->vrm)); 533 } 534 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL); 535 536 static ssize_t show_vrm(struct device *dev, struct device_attribute *attr, char *buf) 537 { 538 struct pc87360_data *data = pc87360_update_device(dev); 539 return sprintf(buf, "%u\n", data->vrm); 540 } 541 static ssize_t set_vrm(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) 542 { 543 struct i2c_client *client = to_i2c_client(dev); 544 struct pc87360_data *data = i2c_get_clientdata(client); 545 data->vrm = simple_strtoul(buf, NULL, 10); 546 return count; 547 } 548 static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm); 549 550 static ssize_t show_in_alarms(struct device *dev, struct device_attribute *attr, char *buf) 551 { 552 struct pc87360_data *data = pc87360_update_device(dev); 553 return sprintf(buf, "%u\n", data->in_alarms); 554 } 555 static DEVICE_ATTR(alarms_in, S_IRUGO, show_in_alarms, NULL); 556 557 static ssize_t show_temp_input(struct device *dev, struct device_attribute *devattr, char *buf) 558 { 559 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 560 struct pc87360_data *data = pc87360_update_device(dev); 561 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[attr->index])); 562 } 563 static ssize_t show_temp_min(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, "%d\n", TEMP_FROM_REG(data->temp_min[attr->index])); 568 } 569 static ssize_t show_temp_max(struct device *dev, struct device_attribute *devattr, char *buf) 570 { 571 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 572 struct pc87360_data *data = pc87360_update_device(dev); 573 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[attr->index])); 574 } 575 static ssize_t show_temp_crit(struct device *dev, struct device_attribute *devattr, char *buf) 576 { 577 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 578 struct pc87360_data *data = pc87360_update_device(dev); 579 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[attr->index])); 580 } 581 static ssize_t show_temp_status(struct device *dev, struct device_attribute *devattr, char *buf) 582 { 583 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 584 struct pc87360_data *data = pc87360_update_device(dev); 585 return sprintf(buf, "%d\n", data->temp_status[attr->index]); 586 } 587 static ssize_t set_temp_min(struct device *dev, struct device_attribute *devattr, const char *buf, 588 size_t count) 589 { 590 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 591 struct i2c_client *client = to_i2c_client(dev); 592 struct pc87360_data *data = i2c_get_clientdata(client); 593 long val = simple_strtol(buf, NULL, 10); 594 595 down(&data->update_lock); 596 data->temp_min[attr->index] = TEMP_TO_REG(val); 597 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MIN, 598 data->temp_min[attr->index]); 599 up(&data->update_lock); 600 return count; 601 } 602 static ssize_t set_temp_max(struct device *dev, struct device_attribute *devattr, const char *buf, 603 size_t count) 604 { 605 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 606 struct i2c_client *client = to_i2c_client(dev); 607 struct pc87360_data *data = i2c_get_clientdata(client); 608 long val = simple_strtol(buf, NULL, 10); 609 610 down(&data->update_lock); 611 data->temp_max[attr->index] = TEMP_TO_REG(val); 612 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MAX, 613 data->temp_max[attr->index]); 614 up(&data->update_lock); 615 return count; 616 } 617 static ssize_t set_temp_crit(struct device *dev, struct device_attribute *devattr, const char *buf, 618 size_t count) 619 { 620 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 621 struct i2c_client *client = to_i2c_client(dev); 622 struct pc87360_data *data = i2c_get_clientdata(client); 623 long val = simple_strtol(buf, NULL, 10); 624 625 down(&data->update_lock); 626 data->temp_crit[attr->index] = TEMP_TO_REG(val); 627 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_CRIT, 628 data->temp_crit[attr->index]); 629 up(&data->update_lock); 630 return count; 631 } 632 633 #define show_and_set_temp(offset) \ 634 static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \ 635 show_temp_input, NULL, offset-1); \ 636 static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IWUSR | S_IRUGO, \ 637 show_temp_min, set_temp_min, offset-1); \ 638 static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IWUSR | S_IRUGO, \ 639 show_temp_max, set_temp_max, offset-1); \ 640 static SENSOR_DEVICE_ATTR(temp##offset##_crit, S_IWUSR | S_IRUGO, \ 641 show_temp_crit, set_temp_crit, offset-1); \ 642 static SENSOR_DEVICE_ATTR(temp##offset##_status, S_IRUGO, \ 643 show_temp_status, NULL, offset-1); 644 show_and_set_temp(1) 645 show_and_set_temp(2) 646 show_and_set_temp(3) 647 648 static ssize_t show_temp_alarms(struct device *dev, struct device_attribute *attr, char *buf) 649 { 650 struct pc87360_data *data = pc87360_update_device(dev); 651 return sprintf(buf, "%u\n", data->temp_alarms); 652 } 653 static DEVICE_ATTR(alarms_temp, S_IRUGO, show_temp_alarms, NULL); 654 655 /* 656 * Device detection, registration and update 657 */ 658 659 static int __init pc87360_find(int sioaddr, u8 *devid, unsigned short *addresses) 660 { 661 u16 val; 662 int i; 663 int nrdev; /* logical device count */ 664 665 /* No superio_enter */ 666 667 /* Identify device */ 668 val = superio_inb(sioaddr, DEVID); 669 switch (val) { 670 case 0xE1: /* PC87360 */ 671 case 0xE8: /* PC87363 */ 672 case 0xE4: /* PC87364 */ 673 nrdev = 1; 674 break; 675 case 0xE5: /* PC87365 */ 676 case 0xE9: /* PC87366 */ 677 nrdev = 3; 678 break; 679 default: 680 superio_exit(sioaddr); 681 return -ENODEV; 682 } 683 /* Remember the device id */ 684 *devid = val; 685 686 for (i = 0; i < nrdev; i++) { 687 /* select logical device */ 688 superio_outb(sioaddr, DEV, logdev[i]); 689 690 val = superio_inb(sioaddr, ACT); 691 if (!(val & 0x01)) { 692 printk(KERN_INFO "pc87360: Device 0x%02x not " 693 "activated\n", logdev[i]); 694 continue; 695 } 696 697 val = (superio_inb(sioaddr, BASE) << 8) 698 | superio_inb(sioaddr, BASE + 1); 699 if (!val) { 700 printk(KERN_INFO "pc87360: Base address not set for " 701 "device 0x%02x\n", logdev[i]); 702 continue; 703 } 704 705 addresses[i] = val; 706 707 if (i==0) { /* Fans */ 708 confreg[0] = superio_inb(sioaddr, 0xF0); 709 confreg[1] = superio_inb(sioaddr, 0xF1); 710 711 #ifdef DEBUG 712 printk(KERN_DEBUG "pc87360: Fan 1: mon=%d " 713 "ctrl=%d inv=%d\n", (confreg[0]>>2)&1, 714 (confreg[0]>>3)&1, (confreg[0]>>4)&1); 715 printk(KERN_DEBUG "pc87360: Fan 2: mon=%d " 716 "ctrl=%d inv=%d\n", (confreg[0]>>5)&1, 717 (confreg[0]>>6)&1, (confreg[0]>>7)&1); 718 printk(KERN_DEBUG "pc87360: Fan 3: mon=%d " 719 "ctrl=%d inv=%d\n", confreg[1]&1, 720 (confreg[1]>>1)&1, (confreg[1]>>2)&1); 721 #endif 722 } else if (i==1) { /* Voltages */ 723 /* Are we using thermistors? */ 724 if (*devid == 0xE9) { /* PC87366 */ 725 /* These registers are not logical-device 726 specific, just that we won't need them if 727 we don't use the VLM device */ 728 confreg[2] = superio_inb(sioaddr, 0x2B); 729 confreg[3] = superio_inb(sioaddr, 0x25); 730 731 if (confreg[2] & 0x40) { 732 printk(KERN_INFO "pc87360: Using " 733 "thermistors for temperature " 734 "monitoring\n"); 735 } 736 if (confreg[3] & 0xE0) { 737 printk(KERN_INFO "pc87360: VID " 738 "inputs routed (mode %u)\n", 739 confreg[3] >> 5); 740 } 741 } 742 } 743 } 744 745 superio_exit(sioaddr); 746 return 0; 747 } 748 749 static int pc87360_detect(struct i2c_adapter *adapter) 750 { 751 int i; 752 struct i2c_client *new_client; 753 struct pc87360_data *data; 754 int err = 0; 755 const char *name = "pc87360"; 756 int use_thermistors = 0; 757 758 if (!(data = kzalloc(sizeof(struct pc87360_data), GFP_KERNEL))) 759 return -ENOMEM; 760 761 new_client = &data->client; 762 i2c_set_clientdata(new_client, data); 763 new_client->addr = address; 764 init_MUTEX(&data->lock); 765 new_client->adapter = adapter; 766 new_client->driver = &pc87360_driver; 767 new_client->flags = 0; 768 769 data->fannr = 2; 770 data->innr = 0; 771 data->tempnr = 0; 772 773 switch (devid) { 774 case 0xe8: 775 name = "pc87363"; 776 break; 777 case 0xe4: 778 name = "pc87364"; 779 data->fannr = 3; 780 break; 781 case 0xe5: 782 name = "pc87365"; 783 data->fannr = extra_isa[0] ? 3 : 0; 784 data->innr = extra_isa[1] ? 11 : 0; 785 data->tempnr = extra_isa[2] ? 2 : 0; 786 break; 787 case 0xe9: 788 name = "pc87366"; 789 data->fannr = extra_isa[0] ? 3 : 0; 790 data->innr = extra_isa[1] ? 14 : 0; 791 data->tempnr = extra_isa[2] ? 3 : 0; 792 break; 793 } 794 795 strcpy(new_client->name, name); 796 data->valid = 0; 797 init_MUTEX(&data->update_lock); 798 799 for (i = 0; i < 3; i++) { 800 if (((data->address[i] = extra_isa[i])) 801 && !request_region(extra_isa[i], PC87360_EXTENT, 802 pc87360_driver.driver.name)) { 803 dev_err(&new_client->dev, "Region 0x%x-0x%x already " 804 "in use!\n", extra_isa[i], 805 extra_isa[i]+PC87360_EXTENT-1); 806 for (i--; i >= 0; i--) 807 release_region(extra_isa[i], PC87360_EXTENT); 808 err = -EBUSY; 809 goto ERROR1; 810 } 811 } 812 813 /* Retrieve the fans configuration from Super-I/O space */ 814 if (data->fannr) 815 data->fan_conf = confreg[0] | (confreg[1] << 8); 816 817 if ((err = i2c_attach_client(new_client))) 818 goto ERROR2; 819 820 /* Use the correct reference voltage 821 Unless both the VLM and the TMS logical devices agree to 822 use an external Vref, the internal one is used. */ 823 if (data->innr) { 824 i = pc87360_read_value(data, LD_IN, NO_BANK, 825 PC87365_REG_IN_CONFIG); 826 if (data->tempnr) { 827 i &= pc87360_read_value(data, LD_TEMP, NO_BANK, 828 PC87365_REG_TEMP_CONFIG); 829 } 830 data->in_vref = (i&0x02) ? 3025 : 2966; 831 dev_dbg(&new_client->dev, "Using %s reference voltage\n", 832 (i&0x02) ? "external" : "internal"); 833 834 data->vid_conf = confreg[3]; 835 data->vrm = 90; 836 } 837 838 /* Fan clock dividers may be needed before any data is read */ 839 for (i = 0; i < data->fannr; i++) { 840 if (FAN_CONFIG_MONITOR(data->fan_conf, i)) 841 data->fan_status[i] = pc87360_read_value(data, 842 LD_FAN, NO_BANK, 843 PC87360_REG_FAN_STATUS(i)); 844 } 845 846 if (init > 0) { 847 if (devid == 0xe9 && data->address[1]) /* PC87366 */ 848 use_thermistors = confreg[2] & 0x40; 849 850 pc87360_init_client(new_client, use_thermistors); 851 } 852 853 /* Register sysfs hooks */ 854 data->class_dev = hwmon_device_register(&new_client->dev); 855 if (IS_ERR(data->class_dev)) { 856 err = PTR_ERR(data->class_dev); 857 goto ERROR3; 858 } 859 860 if (data->innr) { 861 device_create_file(&new_client->dev, &sensor_dev_attr_in0_input.dev_attr); 862 device_create_file(&new_client->dev, &sensor_dev_attr_in1_input.dev_attr); 863 device_create_file(&new_client->dev, &sensor_dev_attr_in2_input.dev_attr); 864 device_create_file(&new_client->dev, &sensor_dev_attr_in3_input.dev_attr); 865 device_create_file(&new_client->dev, &sensor_dev_attr_in4_input.dev_attr); 866 device_create_file(&new_client->dev, &sensor_dev_attr_in5_input.dev_attr); 867 device_create_file(&new_client->dev, &sensor_dev_attr_in6_input.dev_attr); 868 device_create_file(&new_client->dev, &sensor_dev_attr_in7_input.dev_attr); 869 device_create_file(&new_client->dev, &sensor_dev_attr_in8_input.dev_attr); 870 device_create_file(&new_client->dev, &sensor_dev_attr_in9_input.dev_attr); 871 device_create_file(&new_client->dev, &sensor_dev_attr_in10_input.dev_attr); 872 device_create_file(&new_client->dev, &sensor_dev_attr_in0_min.dev_attr); 873 device_create_file(&new_client->dev, &sensor_dev_attr_in1_min.dev_attr); 874 device_create_file(&new_client->dev, &sensor_dev_attr_in2_min.dev_attr); 875 device_create_file(&new_client->dev, &sensor_dev_attr_in3_min.dev_attr); 876 device_create_file(&new_client->dev, &sensor_dev_attr_in4_min.dev_attr); 877 device_create_file(&new_client->dev, &sensor_dev_attr_in5_min.dev_attr); 878 device_create_file(&new_client->dev, &sensor_dev_attr_in6_min.dev_attr); 879 device_create_file(&new_client->dev, &sensor_dev_attr_in7_min.dev_attr); 880 device_create_file(&new_client->dev, &sensor_dev_attr_in8_min.dev_attr); 881 device_create_file(&new_client->dev, &sensor_dev_attr_in9_min.dev_attr); 882 device_create_file(&new_client->dev, &sensor_dev_attr_in10_min.dev_attr); 883 device_create_file(&new_client->dev, &sensor_dev_attr_in0_max.dev_attr); 884 device_create_file(&new_client->dev, &sensor_dev_attr_in1_max.dev_attr); 885 device_create_file(&new_client->dev, &sensor_dev_attr_in2_max.dev_attr); 886 device_create_file(&new_client->dev, &sensor_dev_attr_in3_max.dev_attr); 887 device_create_file(&new_client->dev, &sensor_dev_attr_in4_max.dev_attr); 888 device_create_file(&new_client->dev, &sensor_dev_attr_in5_max.dev_attr); 889 device_create_file(&new_client->dev, &sensor_dev_attr_in6_max.dev_attr); 890 device_create_file(&new_client->dev, &sensor_dev_attr_in7_max.dev_attr); 891 device_create_file(&new_client->dev, &sensor_dev_attr_in8_max.dev_attr); 892 device_create_file(&new_client->dev, &sensor_dev_attr_in9_max.dev_attr); 893 device_create_file(&new_client->dev, &sensor_dev_attr_in10_max.dev_attr); 894 device_create_file(&new_client->dev, &sensor_dev_attr_in0_status.dev_attr); 895 device_create_file(&new_client->dev, &sensor_dev_attr_in1_status.dev_attr); 896 device_create_file(&new_client->dev, &sensor_dev_attr_in2_status.dev_attr); 897 device_create_file(&new_client->dev, &sensor_dev_attr_in3_status.dev_attr); 898 device_create_file(&new_client->dev, &sensor_dev_attr_in4_status.dev_attr); 899 device_create_file(&new_client->dev, &sensor_dev_attr_in5_status.dev_attr); 900 device_create_file(&new_client->dev, &sensor_dev_attr_in6_status.dev_attr); 901 device_create_file(&new_client->dev, &sensor_dev_attr_in7_status.dev_attr); 902 device_create_file(&new_client->dev, &sensor_dev_attr_in8_status.dev_attr); 903 device_create_file(&new_client->dev, &sensor_dev_attr_in9_status.dev_attr); 904 device_create_file(&new_client->dev, &sensor_dev_attr_in10_status.dev_attr); 905 906 device_create_file(&new_client->dev, &dev_attr_cpu0_vid); 907 device_create_file(&new_client->dev, &dev_attr_vrm); 908 device_create_file(&new_client->dev, &dev_attr_alarms_in); 909 } 910 911 if (data->tempnr) { 912 device_create_file(&new_client->dev, &sensor_dev_attr_temp1_input.dev_attr); 913 device_create_file(&new_client->dev, &sensor_dev_attr_temp2_input.dev_attr); 914 device_create_file(&new_client->dev, &sensor_dev_attr_temp1_min.dev_attr); 915 device_create_file(&new_client->dev, &sensor_dev_attr_temp2_min.dev_attr); 916 device_create_file(&new_client->dev, &sensor_dev_attr_temp1_max.dev_attr); 917 device_create_file(&new_client->dev, &sensor_dev_attr_temp2_max.dev_attr); 918 device_create_file(&new_client->dev, &sensor_dev_attr_temp1_crit.dev_attr); 919 device_create_file(&new_client->dev, &sensor_dev_attr_temp2_crit.dev_attr); 920 device_create_file(&new_client->dev, &sensor_dev_attr_temp1_status.dev_attr); 921 device_create_file(&new_client->dev, &sensor_dev_attr_temp2_status.dev_attr); 922 923 device_create_file(&new_client->dev, &dev_attr_alarms_temp); 924 } 925 if (data->tempnr == 3) { 926 device_create_file(&new_client->dev, &sensor_dev_attr_temp3_input.dev_attr); 927 device_create_file(&new_client->dev, &sensor_dev_attr_temp3_min.dev_attr); 928 device_create_file(&new_client->dev, &sensor_dev_attr_temp3_max.dev_attr); 929 device_create_file(&new_client->dev, &sensor_dev_attr_temp3_crit.dev_attr); 930 device_create_file(&new_client->dev, &sensor_dev_attr_temp3_status.dev_attr); 931 } 932 if (data->innr == 14) { 933 device_create_file(&new_client->dev, &sensor_dev_attr_temp4_input.dev_attr); 934 device_create_file(&new_client->dev, &sensor_dev_attr_temp5_input.dev_attr); 935 device_create_file(&new_client->dev, &sensor_dev_attr_temp6_input.dev_attr); 936 device_create_file(&new_client->dev, &sensor_dev_attr_temp4_min.dev_attr); 937 device_create_file(&new_client->dev, &sensor_dev_attr_temp5_min.dev_attr); 938 device_create_file(&new_client->dev, &sensor_dev_attr_temp6_min.dev_attr); 939 device_create_file(&new_client->dev, &sensor_dev_attr_temp4_max.dev_attr); 940 device_create_file(&new_client->dev, &sensor_dev_attr_temp5_max.dev_attr); 941 device_create_file(&new_client->dev, &sensor_dev_attr_temp6_max.dev_attr); 942 device_create_file(&new_client->dev, &sensor_dev_attr_temp4_crit.dev_attr); 943 device_create_file(&new_client->dev, &sensor_dev_attr_temp5_crit.dev_attr); 944 device_create_file(&new_client->dev, &sensor_dev_attr_temp6_crit.dev_attr); 945 device_create_file(&new_client->dev, &sensor_dev_attr_temp4_status.dev_attr); 946 device_create_file(&new_client->dev, &sensor_dev_attr_temp5_status.dev_attr); 947 device_create_file(&new_client->dev, &sensor_dev_attr_temp6_status.dev_attr); 948 } 949 950 if (data->fannr) { 951 if (FAN_CONFIG_MONITOR(data->fan_conf, 0)) { 952 device_create_file(&new_client->dev, 953 &sensor_dev_attr_fan1_input.dev_attr); 954 device_create_file(&new_client->dev, 955 &sensor_dev_attr_fan1_min.dev_attr); 956 device_create_file(&new_client->dev, 957 &sensor_dev_attr_fan1_div.dev_attr); 958 device_create_file(&new_client->dev, 959 &sensor_dev_attr_fan1_status.dev_attr); 960 } 961 962 if (FAN_CONFIG_MONITOR(data->fan_conf, 1)) { 963 device_create_file(&new_client->dev, 964 &sensor_dev_attr_fan2_input.dev_attr); 965 device_create_file(&new_client->dev, 966 &sensor_dev_attr_fan2_min.dev_attr); 967 device_create_file(&new_client->dev, 968 &sensor_dev_attr_fan2_div.dev_attr); 969 device_create_file(&new_client->dev, 970 &sensor_dev_attr_fan2_status.dev_attr); 971 } 972 973 if (FAN_CONFIG_CONTROL(data->fan_conf, 0)) 974 device_create_file(&new_client->dev, &sensor_dev_attr_pwm1.dev_attr); 975 if (FAN_CONFIG_CONTROL(data->fan_conf, 1)) 976 device_create_file(&new_client->dev, &sensor_dev_attr_pwm2.dev_attr); 977 } 978 if (data->fannr == 3) { 979 if (FAN_CONFIG_MONITOR(data->fan_conf, 2)) { 980 device_create_file(&new_client->dev, 981 &sensor_dev_attr_fan3_input.dev_attr); 982 device_create_file(&new_client->dev, 983 &sensor_dev_attr_fan3_min.dev_attr); 984 device_create_file(&new_client->dev, 985 &sensor_dev_attr_fan3_div.dev_attr); 986 device_create_file(&new_client->dev, 987 &sensor_dev_attr_fan3_status.dev_attr); 988 } 989 990 if (FAN_CONFIG_CONTROL(data->fan_conf, 2)) 991 device_create_file(&new_client->dev, &sensor_dev_attr_pwm3.dev_attr); 992 } 993 994 return 0; 995 996 ERROR3: 997 i2c_detach_client(new_client); 998 ERROR2: 999 for (i = 0; i < 3; i++) { 1000 if (data->address[i]) { 1001 release_region(data->address[i], PC87360_EXTENT); 1002 } 1003 } 1004 ERROR1: 1005 kfree(data); 1006 return err; 1007 } 1008 1009 static int pc87360_detach_client(struct i2c_client *client) 1010 { 1011 struct pc87360_data *data = i2c_get_clientdata(client); 1012 int i; 1013 1014 hwmon_device_unregister(data->class_dev); 1015 1016 if ((i = i2c_detach_client(client))) 1017 return i; 1018 1019 for (i = 0; i < 3; i++) { 1020 if (data->address[i]) { 1021 release_region(data->address[i], PC87360_EXTENT); 1022 } 1023 } 1024 kfree(data); 1025 1026 return 0; 1027 } 1028 1029 /* ldi is the logical device index 1030 bank is for voltages and temperatures only */ 1031 static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank, 1032 u8 reg) 1033 { 1034 int res; 1035 1036 down(&(data->lock)); 1037 if (bank != NO_BANK) 1038 outb_p(bank, data->address[ldi] + PC87365_REG_BANK); 1039 res = inb_p(data->address[ldi] + reg); 1040 up(&(data->lock)); 1041 1042 return res; 1043 } 1044 1045 static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank, 1046 u8 reg, u8 value) 1047 { 1048 down(&(data->lock)); 1049 if (bank != NO_BANK) 1050 outb_p(bank, data->address[ldi] + PC87365_REG_BANK); 1051 outb_p(value, data->address[ldi] + reg); 1052 up(&(data->lock)); 1053 } 1054 1055 static void pc87360_init_client(struct i2c_client *client, int use_thermistors) 1056 { 1057 struct pc87360_data *data = i2c_get_clientdata(client); 1058 int i, nr; 1059 const u8 init_in[14] = { 2, 2, 2, 2, 2, 2, 2, 1, 1, 3, 1, 2, 2, 2 }; 1060 const u8 init_temp[3] = { 2, 2, 1 }; 1061 u8 reg; 1062 1063 if (init >= 2 && data->innr) { 1064 reg = pc87360_read_value(data, LD_IN, NO_BANK, 1065 PC87365_REG_IN_CONVRATE); 1066 dev_info(&client->dev, "VLM conversion set to " 1067 "1s period, 160us delay\n"); 1068 pc87360_write_value(data, LD_IN, NO_BANK, 1069 PC87365_REG_IN_CONVRATE, 1070 (reg & 0xC0) | 0x11); 1071 } 1072 1073 nr = data->innr < 11 ? data->innr : 11; 1074 for (i=0; i<nr; i++) { 1075 if (init >= init_in[i]) { 1076 /* Forcibly enable voltage channel */ 1077 reg = pc87360_read_value(data, LD_IN, i, 1078 PC87365_REG_IN_STATUS); 1079 if (!(reg & 0x01)) { 1080 dev_dbg(&client->dev, "Forcibly " 1081 "enabling in%d\n", i); 1082 pc87360_write_value(data, LD_IN, i, 1083 PC87365_REG_IN_STATUS, 1084 (reg & 0x68) | 0x87); 1085 } 1086 } 1087 } 1088 1089 /* We can't blindly trust the Super-I/O space configuration bit, 1090 most BIOS won't set it properly */ 1091 for (i=11; i<data->innr; i++) { 1092 reg = pc87360_read_value(data, LD_IN, i, 1093 PC87365_REG_TEMP_STATUS); 1094 use_thermistors = use_thermistors || (reg & 0x01); 1095 } 1096 1097 i = use_thermistors ? 2 : 0; 1098 for (; i<data->tempnr; i++) { 1099 if (init >= init_temp[i]) { 1100 /* Forcibly enable temperature channel */ 1101 reg = pc87360_read_value(data, LD_TEMP, i, 1102 PC87365_REG_TEMP_STATUS); 1103 if (!(reg & 0x01)) { 1104 dev_dbg(&client->dev, "Forcibly " 1105 "enabling temp%d\n", i+1); 1106 pc87360_write_value(data, LD_TEMP, i, 1107 PC87365_REG_TEMP_STATUS, 1108 0xCF); 1109 } 1110 } 1111 } 1112 1113 if (use_thermistors) { 1114 for (i=11; i<data->innr; i++) { 1115 if (init >= init_in[i]) { 1116 /* The pin may already be used by thermal 1117 diodes */ 1118 reg = pc87360_read_value(data, LD_TEMP, 1119 (i-11)/2, PC87365_REG_TEMP_STATUS); 1120 if (reg & 0x01) { 1121 dev_dbg(&client->dev, "Skipping " 1122 "temp%d, pin already in use " 1123 "by temp%d\n", i-7, (i-11)/2); 1124 continue; 1125 } 1126 1127 /* Forcibly enable thermistor channel */ 1128 reg = pc87360_read_value(data, LD_IN, i, 1129 PC87365_REG_IN_STATUS); 1130 if (!(reg & 0x01)) { 1131 dev_dbg(&client->dev, "Forcibly " 1132 "enabling temp%d\n", i-7); 1133 pc87360_write_value(data, LD_IN, i, 1134 PC87365_REG_TEMP_STATUS, 1135 (reg & 0x60) | 0x8F); 1136 } 1137 } 1138 } 1139 } 1140 1141 if (data->innr) { 1142 reg = pc87360_read_value(data, LD_IN, NO_BANK, 1143 PC87365_REG_IN_CONFIG); 1144 if (reg & 0x01) { 1145 dev_dbg(&client->dev, "Forcibly " 1146 "enabling monitoring (VLM)\n"); 1147 pc87360_write_value(data, LD_IN, NO_BANK, 1148 PC87365_REG_IN_CONFIG, 1149 reg & 0xFE); 1150 } 1151 } 1152 1153 if (data->tempnr) { 1154 reg = pc87360_read_value(data, LD_TEMP, NO_BANK, 1155 PC87365_REG_TEMP_CONFIG); 1156 if (reg & 0x01) { 1157 dev_dbg(&client->dev, "Forcibly enabling " 1158 "monitoring (TMS)\n"); 1159 pc87360_write_value(data, LD_TEMP, NO_BANK, 1160 PC87365_REG_TEMP_CONFIG, 1161 reg & 0xFE); 1162 } 1163 1164 if (init >= 2) { 1165 /* Chip config as documented by National Semi. */ 1166 pc87360_write_value(data, LD_TEMP, 0xF, 0xA, 0x08); 1167 /* We voluntarily omit the bank here, in case the 1168 sequence itself matters. It shouldn't be a problem, 1169 since nobody else is supposed to access the 1170 device at that point. */ 1171 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xB, 0x04); 1172 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xC, 0x35); 1173 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xD, 0x05); 1174 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xE, 0x05); 1175 } 1176 } 1177 } 1178 1179 static void pc87360_autodiv(struct i2c_client *client, int nr) 1180 { 1181 struct pc87360_data *data = i2c_get_clientdata(client); 1182 u8 old_min = data->fan_min[nr]; 1183 1184 /* Increase clock divider if needed and possible */ 1185 if ((data->fan_status[nr] & 0x04) /* overflow flag */ 1186 || (data->fan[nr] >= 224)) { /* next to overflow */ 1187 if ((data->fan_status[nr] & 0x60) != 0x60) { 1188 data->fan_status[nr] += 0x20; 1189 data->fan_min[nr] >>= 1; 1190 data->fan[nr] >>= 1; 1191 dev_dbg(&client->dev, "Increasing " 1192 "clock divider to %d for fan %d\n", 1193 FAN_DIV_FROM_REG(data->fan_status[nr]), nr+1); 1194 } 1195 } else { 1196 /* Decrease clock divider if possible */ 1197 while (!(data->fan_min[nr] & 0x80) /* min "nails" divider */ 1198 && data->fan[nr] < 85 /* bad accuracy */ 1199 && (data->fan_status[nr] & 0x60) != 0x00) { 1200 data->fan_status[nr] -= 0x20; 1201 data->fan_min[nr] <<= 1; 1202 data->fan[nr] <<= 1; 1203 dev_dbg(&client->dev, "Decreasing " 1204 "clock divider to %d for fan %d\n", 1205 FAN_DIV_FROM_REG(data->fan_status[nr]), 1206 nr+1); 1207 } 1208 } 1209 1210 /* Write new fan min if it changed */ 1211 if (old_min != data->fan_min[nr]) { 1212 pc87360_write_value(data, LD_FAN, NO_BANK, 1213 PC87360_REG_FAN_MIN(nr), 1214 data->fan_min[nr]); 1215 } 1216 } 1217 1218 static struct pc87360_data *pc87360_update_device(struct device *dev) 1219 { 1220 struct i2c_client *client = to_i2c_client(dev); 1221 struct pc87360_data *data = i2c_get_clientdata(client); 1222 u8 i; 1223 1224 down(&data->update_lock); 1225 1226 if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) { 1227 dev_dbg(&client->dev, "Data update\n"); 1228 1229 /* Fans */ 1230 for (i = 0; i < data->fannr; i++) { 1231 if (FAN_CONFIG_MONITOR(data->fan_conf, i)) { 1232 data->fan_status[i] = 1233 pc87360_read_value(data, LD_FAN, 1234 NO_BANK, PC87360_REG_FAN_STATUS(i)); 1235 data->fan[i] = pc87360_read_value(data, LD_FAN, 1236 NO_BANK, PC87360_REG_FAN(i)); 1237 data->fan_min[i] = pc87360_read_value(data, 1238 LD_FAN, NO_BANK, 1239 PC87360_REG_FAN_MIN(i)); 1240 /* Change clock divider if needed */ 1241 pc87360_autodiv(client, i); 1242 /* Clear bits and write new divider */ 1243 pc87360_write_value(data, LD_FAN, NO_BANK, 1244 PC87360_REG_FAN_STATUS(i), 1245 data->fan_status[i]); 1246 } 1247 if (FAN_CONFIG_CONTROL(data->fan_conf, i)) 1248 data->pwm[i] = pc87360_read_value(data, LD_FAN, 1249 NO_BANK, PC87360_REG_PWM(i)); 1250 } 1251 1252 /* Voltages */ 1253 for (i = 0; i < data->innr; i++) { 1254 data->in_status[i] = pc87360_read_value(data, LD_IN, i, 1255 PC87365_REG_IN_STATUS); 1256 /* Clear bits */ 1257 pc87360_write_value(data, LD_IN, i, 1258 PC87365_REG_IN_STATUS, 1259 data->in_status[i]); 1260 if ((data->in_status[i] & 0x81) == 0x81) { 1261 data->in[i] = pc87360_read_value(data, LD_IN, 1262 i, PC87365_REG_IN); 1263 } 1264 if (data->in_status[i] & 0x01) { 1265 data->in_min[i] = pc87360_read_value(data, 1266 LD_IN, i, 1267 PC87365_REG_IN_MIN); 1268 data->in_max[i] = pc87360_read_value(data, 1269 LD_IN, i, 1270 PC87365_REG_IN_MAX); 1271 if (i >= 11) 1272 data->in_crit[i-11] = 1273 pc87360_read_value(data, LD_IN, 1274 i, PC87365_REG_TEMP_CRIT); 1275 } 1276 } 1277 if (data->innr) { 1278 data->in_alarms = pc87360_read_value(data, LD_IN, 1279 NO_BANK, PC87365_REG_IN_ALARMS1) 1280 | ((pc87360_read_value(data, LD_IN, 1281 NO_BANK, PC87365_REG_IN_ALARMS2) 1282 & 0x07) << 8); 1283 data->vid = (data->vid_conf & 0xE0) ? 1284 pc87360_read_value(data, LD_IN, 1285 NO_BANK, PC87365_REG_VID) : 0x1F; 1286 } 1287 1288 /* Temperatures */ 1289 for (i = 0; i < data->tempnr; i++) { 1290 data->temp_status[i] = pc87360_read_value(data, 1291 LD_TEMP, i, 1292 PC87365_REG_TEMP_STATUS); 1293 /* Clear bits */ 1294 pc87360_write_value(data, LD_TEMP, i, 1295 PC87365_REG_TEMP_STATUS, 1296 data->temp_status[i]); 1297 if ((data->temp_status[i] & 0x81) == 0x81) { 1298 data->temp[i] = pc87360_read_value(data, 1299 LD_TEMP, i, 1300 PC87365_REG_TEMP); 1301 } 1302 if (data->temp_status[i] & 0x01) { 1303 data->temp_min[i] = pc87360_read_value(data, 1304 LD_TEMP, i, 1305 PC87365_REG_TEMP_MIN); 1306 data->temp_max[i] = pc87360_read_value(data, 1307 LD_TEMP, i, 1308 PC87365_REG_TEMP_MAX); 1309 data->temp_crit[i] = pc87360_read_value(data, 1310 LD_TEMP, i, 1311 PC87365_REG_TEMP_CRIT); 1312 } 1313 } 1314 if (data->tempnr) { 1315 data->temp_alarms = pc87360_read_value(data, LD_TEMP, 1316 NO_BANK, PC87365_REG_TEMP_ALARMS) 1317 & 0x3F; 1318 } 1319 1320 data->last_updated = jiffies; 1321 data->valid = 1; 1322 } 1323 1324 up(&data->update_lock); 1325 1326 return data; 1327 } 1328 1329 static int __init pc87360_init(void) 1330 { 1331 int i; 1332 1333 if (pc87360_find(0x2e, &devid, extra_isa) 1334 && pc87360_find(0x4e, &devid, extra_isa)) { 1335 printk(KERN_WARNING "pc87360: PC8736x not detected, " 1336 "module not inserted.\n"); 1337 return -ENODEV; 1338 } 1339 1340 /* Arbitrarily pick one of the addresses */ 1341 for (i = 0; i < 3; i++) { 1342 if (extra_isa[i] != 0x0000) { 1343 address = extra_isa[i]; 1344 break; 1345 } 1346 } 1347 1348 if (address == 0x0000) { 1349 printk(KERN_WARNING "pc87360: No active logical device, " 1350 "module not inserted.\n"); 1351 return -ENODEV; 1352 } 1353 1354 return i2c_isa_add_driver(&pc87360_driver); 1355 } 1356 1357 static void __exit pc87360_exit(void) 1358 { 1359 i2c_isa_del_driver(&pc87360_driver); 1360 } 1361 1362 1363 MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>"); 1364 MODULE_DESCRIPTION("PC8736x hardware monitor"); 1365 MODULE_LICENSE("GPL"); 1366 1367 module_init(pc87360_init); 1368 module_exit(pc87360_exit); 1369