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 .owner = THIS_MODULE, 240 .name = "pc87360", 241 .attach_adapter = pc87360_detect, 242 .detach_client = pc87360_detach_client, 243 }; 244 245 /* 246 * Sysfs stuff 247 */ 248 249 static ssize_t show_fan_input(struct device *dev, struct device_attribute *devattr, char *buf) 250 { 251 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 252 struct pc87360_data *data = pc87360_update_device(dev); 253 return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan[attr->index], 254 FAN_DIV_FROM_REG(data->fan_status[attr->index]))); 255 } 256 static ssize_t show_fan_min(struct device *dev, struct device_attribute *devattr, char *buf) 257 { 258 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 259 struct pc87360_data *data = pc87360_update_device(dev); 260 return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan_min[attr->index], 261 FAN_DIV_FROM_REG(data->fan_status[attr->index]))); 262 } 263 static ssize_t show_fan_div(struct device *dev, struct device_attribute *devattr, char *buf) 264 { 265 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 266 struct pc87360_data *data = pc87360_update_device(dev); 267 return sprintf(buf, "%u\n", 268 FAN_DIV_FROM_REG(data->fan_status[attr->index])); 269 } 270 static ssize_t show_fan_status(struct device *dev, struct device_attribute *devattr, char *buf) 271 { 272 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 273 struct pc87360_data *data = pc87360_update_device(dev); 274 return sprintf(buf, "%u\n", 275 FAN_STATUS_FROM_REG(data->fan_status[attr->index])); 276 } 277 static ssize_t set_fan_min(struct device *dev, struct device_attribute *devattr, const char *buf, 278 size_t count) 279 { 280 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 281 struct i2c_client *client = to_i2c_client(dev); 282 struct pc87360_data *data = i2c_get_clientdata(client); 283 long fan_min = simple_strtol(buf, NULL, 10); 284 285 down(&data->update_lock); 286 fan_min = FAN_TO_REG(fan_min, FAN_DIV_FROM_REG(data->fan_status[attr->index])); 287 288 /* If it wouldn't fit, change clock divisor */ 289 while (fan_min > 255 290 && (data->fan_status[attr->index] & 0x60) != 0x60) { 291 fan_min >>= 1; 292 data->fan[attr->index] >>= 1; 293 data->fan_status[attr->index] += 0x20; 294 } 295 data->fan_min[attr->index] = fan_min > 255 ? 255 : fan_min; 296 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_MIN(attr->index), 297 data->fan_min[attr->index]); 298 299 /* Write new divider, preserve alarm bits */ 300 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_STATUS(attr->index), 301 data->fan_status[attr->index] & 0xF9); 302 up(&data->update_lock); 303 304 return count; 305 } 306 307 #define show_and_set_fan(offset) \ 308 static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \ 309 show_fan_input, NULL, offset-1); \ 310 static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IWUSR | S_IRUGO, \ 311 show_fan_min, set_fan_min, offset-1); \ 312 static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO, \ 313 show_fan_div, NULL, offset-1); \ 314 static SENSOR_DEVICE_ATTR(fan##offset##_status, S_IRUGO, \ 315 show_fan_status, NULL, offset-1); 316 show_and_set_fan(1) 317 show_and_set_fan(2) 318 show_and_set_fan(3) 319 320 static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr, char *buf) 321 { 322 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 323 struct pc87360_data *data = pc87360_update_device(dev); 324 return sprintf(buf, "%u\n", 325 PWM_FROM_REG(data->pwm[attr->index], 326 FAN_CONFIG_INVERT(data->fan_conf, 327 attr->index))); 328 } 329 static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr, const char *buf, 330 size_t count) 331 { 332 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 333 struct i2c_client *client = to_i2c_client(dev); 334 struct pc87360_data *data = i2c_get_clientdata(client); 335 long val = simple_strtol(buf, NULL, 10); 336 337 down(&data->update_lock); 338 data->pwm[attr->index] = PWM_TO_REG(val, 339 FAN_CONFIG_INVERT(data->fan_conf, attr->index)); 340 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_PWM(attr->index), 341 data->pwm[attr->index]); 342 up(&data->update_lock); 343 return count; 344 } 345 346 #define show_and_set_pwm(offset) \ 347 static SENSOR_DEVICE_ATTR(pwm##offset, S_IWUSR | S_IRUGO, \ 348 show_pwm, set_pwm, offset-1); 349 show_and_set_pwm(1) 350 show_and_set_pwm(2) 351 show_and_set_pwm(3) 352 353 static ssize_t show_in_input(struct device *dev, struct device_attribute *devattr, char *buf) 354 { 355 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 356 struct pc87360_data *data = pc87360_update_device(dev); 357 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index], 358 data->in_vref)); 359 } 360 static ssize_t show_in_min(struct device *dev, struct device_attribute *devattr, char *buf) 361 { 362 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 363 struct pc87360_data *data = pc87360_update_device(dev); 364 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index], 365 data->in_vref)); 366 } 367 static ssize_t show_in_max(struct device *dev, struct device_attribute *devattr, char *buf) 368 { 369 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 370 struct pc87360_data *data = pc87360_update_device(dev); 371 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index], 372 data->in_vref)); 373 } 374 static ssize_t show_in_status(struct device *dev, struct device_attribute *devattr, char *buf) 375 { 376 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 377 struct pc87360_data *data = pc87360_update_device(dev); 378 return sprintf(buf, "%u\n", data->in_status[attr->index]); 379 } 380 static ssize_t set_in_min(struct device *dev, struct device_attribute *devattr, const char *buf, 381 size_t count) 382 { 383 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 384 struct i2c_client *client = to_i2c_client(dev); 385 struct pc87360_data *data = i2c_get_clientdata(client); 386 long val = simple_strtol(buf, NULL, 10); 387 388 down(&data->update_lock); 389 data->in_min[attr->index] = IN_TO_REG(val, data->in_vref); 390 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MIN, 391 data->in_min[attr->index]); 392 up(&data->update_lock); 393 return count; 394 } 395 static ssize_t set_in_max(struct device *dev, struct device_attribute *devattr, const char *buf, 396 size_t count) 397 { 398 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 399 struct i2c_client *client = to_i2c_client(dev); 400 struct pc87360_data *data = i2c_get_clientdata(client); 401 long val = simple_strtol(buf, NULL, 10); 402 403 down(&data->update_lock); 404 data->in_max[attr->index] = IN_TO_REG(val, 405 data->in_vref); 406 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MAX, 407 data->in_max[attr->index]); 408 up(&data->update_lock); 409 return count; 410 } 411 412 #define show_and_set_in(offset) \ 413 static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \ 414 show_in_input, NULL, offset); \ 415 static SENSOR_DEVICE_ATTR(in##offset##_min, S_IWUSR | S_IRUGO, \ 416 show_in_min, set_in_min, offset); \ 417 static SENSOR_DEVICE_ATTR(in##offset##_max, S_IWUSR | S_IRUGO, \ 418 show_in_max, set_in_max, offset); \ 419 static SENSOR_DEVICE_ATTR(in##offset##_status, S_IRUGO, \ 420 show_in_status, NULL, offset); 421 show_and_set_in(0) 422 show_and_set_in(1) 423 show_and_set_in(2) 424 show_and_set_in(3) 425 show_and_set_in(4) 426 show_and_set_in(5) 427 show_and_set_in(6) 428 show_and_set_in(7) 429 show_and_set_in(8) 430 show_and_set_in(9) 431 show_and_set_in(10) 432 433 static ssize_t show_therm_input(struct device *dev, struct device_attribute *devattr, char *buf) 434 { 435 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 436 struct pc87360_data *data = pc87360_update_device(dev); 437 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index], 438 data->in_vref)); 439 } 440 static ssize_t show_therm_min(struct device *dev, struct device_attribute *devattr, char *buf) 441 { 442 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 443 struct pc87360_data *data = pc87360_update_device(dev); 444 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index], 445 data->in_vref)); 446 } 447 static ssize_t show_therm_max(struct device *dev, struct device_attribute *devattr, char *buf) 448 { 449 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 450 struct pc87360_data *data = pc87360_update_device(dev); 451 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index], 452 data->in_vref)); 453 } 454 static ssize_t show_therm_crit(struct device *dev, struct device_attribute *devattr, char *buf) 455 { 456 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 457 struct pc87360_data *data = pc87360_update_device(dev); 458 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_crit[attr->index-11], 459 data->in_vref)); 460 } 461 static ssize_t show_therm_status(struct device *dev, struct device_attribute *devattr, char *buf) 462 { 463 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 464 struct pc87360_data *data = pc87360_update_device(dev); 465 return sprintf(buf, "%u\n", data->in_status[attr->index]); 466 } 467 static ssize_t set_therm_min(struct device *dev, struct device_attribute *devattr, const char *buf, 468 size_t count) 469 { 470 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 471 struct i2c_client *client = to_i2c_client(dev); 472 struct pc87360_data *data = i2c_get_clientdata(client); 473 long val = simple_strtol(buf, NULL, 10); 474 475 down(&data->update_lock); 476 data->in_min[attr->index] = IN_TO_REG(val, data->in_vref); 477 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MIN, 478 data->in_min[attr->index]); 479 up(&data->update_lock); 480 return count; 481 } 482 static ssize_t set_therm_max(struct device *dev, struct device_attribute *devattr, const char *buf, 483 size_t count) 484 { 485 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 486 struct i2c_client *client = to_i2c_client(dev); 487 struct pc87360_data *data = i2c_get_clientdata(client); 488 long val = simple_strtol(buf, NULL, 10); 489 490 down(&data->update_lock); 491 data->in_max[attr->index] = IN_TO_REG(val, data->in_vref); 492 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MAX, 493 data->in_max[attr->index]); 494 up(&data->update_lock); 495 return count; 496 } 497 static ssize_t set_therm_crit(struct device *dev, struct device_attribute *devattr, const char *buf, 498 size_t count) 499 { 500 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 501 struct i2c_client *client = to_i2c_client(dev); 502 struct pc87360_data *data = i2c_get_clientdata(client); 503 long val = simple_strtol(buf, NULL, 10); 504 505 down(&data->update_lock); 506 data->in_crit[attr->index-11] = IN_TO_REG(val, data->in_vref); 507 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_CRIT, 508 data->in_crit[attr->index-11]); 509 up(&data->update_lock); 510 return count; 511 } 512 513 #define show_and_set_therm(offset) \ 514 static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \ 515 show_therm_input, NULL, 11+offset-4); \ 516 static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IWUSR | S_IRUGO, \ 517 show_therm_min, set_therm_min, 11+offset-4); \ 518 static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IWUSR | S_IRUGO, \ 519 show_therm_max, set_therm_max, 11+offset-4); \ 520 static SENSOR_DEVICE_ATTR(temp##offset##_crit, S_IWUSR | S_IRUGO, \ 521 show_therm_crit, set_therm_crit, 11+offset-4); \ 522 static SENSOR_DEVICE_ATTR(temp##offset##_status, S_IRUGO, \ 523 show_therm_status, NULL, 11+offset-4); 524 show_and_set_therm(4) 525 show_and_set_therm(5) 526 show_and_set_therm(6) 527 528 static ssize_t show_vid(struct device *dev, struct device_attribute *attr, char *buf) 529 { 530 struct pc87360_data *data = pc87360_update_device(dev); 531 return sprintf(buf, "%u\n", vid_from_reg(data->vid, data->vrm)); 532 } 533 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL); 534 535 static ssize_t show_vrm(struct device *dev, struct device_attribute *attr, char *buf) 536 { 537 struct pc87360_data *data = pc87360_update_device(dev); 538 return sprintf(buf, "%u\n", data->vrm); 539 } 540 static ssize_t set_vrm(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) 541 { 542 struct i2c_client *client = to_i2c_client(dev); 543 struct pc87360_data *data = i2c_get_clientdata(client); 544 data->vrm = simple_strtoul(buf, NULL, 10); 545 return count; 546 } 547 static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm); 548 549 static ssize_t show_in_alarms(struct device *dev, struct device_attribute *attr, char *buf) 550 { 551 struct pc87360_data *data = pc87360_update_device(dev); 552 return sprintf(buf, "%u\n", data->in_alarms); 553 } 554 static DEVICE_ATTR(alarms_in, S_IRUGO, show_in_alarms, NULL); 555 556 static ssize_t show_temp_input(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, "%d\n", TEMP_FROM_REG(data->temp[attr->index])); 561 } 562 static ssize_t show_temp_min(struct device *dev, struct device_attribute *devattr, char *buf) 563 { 564 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 565 struct pc87360_data *data = pc87360_update_device(dev); 566 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[attr->index])); 567 } 568 static ssize_t show_temp_max(struct device *dev, struct device_attribute *devattr, char *buf) 569 { 570 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 571 struct pc87360_data *data = pc87360_update_device(dev); 572 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[attr->index])); 573 } 574 static ssize_t show_temp_crit(struct device *dev, struct device_attribute *devattr, char *buf) 575 { 576 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 577 struct pc87360_data *data = pc87360_update_device(dev); 578 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[attr->index])); 579 } 580 static ssize_t show_temp_status(struct device *dev, struct device_attribute *devattr, char *buf) 581 { 582 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 583 struct pc87360_data *data = pc87360_update_device(dev); 584 return sprintf(buf, "%d\n", data->temp_status[attr->index]); 585 } 586 static ssize_t set_temp_min(struct device *dev, struct device_attribute *devattr, const char *buf, 587 size_t count) 588 { 589 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 590 struct i2c_client *client = to_i2c_client(dev); 591 struct pc87360_data *data = i2c_get_clientdata(client); 592 long val = simple_strtol(buf, NULL, 10); 593 594 down(&data->update_lock); 595 data->temp_min[attr->index] = TEMP_TO_REG(val); 596 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MIN, 597 data->temp_min[attr->index]); 598 up(&data->update_lock); 599 return count; 600 } 601 static ssize_t set_temp_max(struct device *dev, struct device_attribute *devattr, const char *buf, 602 size_t count) 603 { 604 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 605 struct i2c_client *client = to_i2c_client(dev); 606 struct pc87360_data *data = i2c_get_clientdata(client); 607 long val = simple_strtol(buf, NULL, 10); 608 609 down(&data->update_lock); 610 data->temp_max[attr->index] = TEMP_TO_REG(val); 611 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MAX, 612 data->temp_max[attr->index]); 613 up(&data->update_lock); 614 return count; 615 } 616 static ssize_t set_temp_crit(struct device *dev, struct device_attribute *devattr, const char *buf, 617 size_t count) 618 { 619 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); 620 struct i2c_client *client = to_i2c_client(dev); 621 struct pc87360_data *data = i2c_get_clientdata(client); 622 long val = simple_strtol(buf, NULL, 10); 623 624 down(&data->update_lock); 625 data->temp_crit[attr->index] = TEMP_TO_REG(val); 626 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_CRIT, 627 data->temp_crit[attr->index]); 628 up(&data->update_lock); 629 return count; 630 } 631 632 #define show_and_set_temp(offset) \ 633 static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \ 634 show_temp_input, NULL, offset-1); \ 635 static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IWUSR | S_IRUGO, \ 636 show_temp_min, set_temp_min, offset-1); \ 637 static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IWUSR | S_IRUGO, \ 638 show_temp_max, set_temp_max, offset-1); \ 639 static SENSOR_DEVICE_ATTR(temp##offset##_crit, S_IWUSR | S_IRUGO, \ 640 show_temp_crit, set_temp_crit, offset-1); \ 641 static SENSOR_DEVICE_ATTR(temp##offset##_status, S_IRUGO, \ 642 show_temp_status, NULL, offset-1); 643 show_and_set_temp(1) 644 show_and_set_temp(2) 645 show_and_set_temp(3) 646 647 static ssize_t show_temp_alarms(struct device *dev, struct device_attribute *attr, char *buf) 648 { 649 struct pc87360_data *data = pc87360_update_device(dev); 650 return sprintf(buf, "%u\n", data->temp_alarms); 651 } 652 static DEVICE_ATTR(alarms_temp, S_IRUGO, show_temp_alarms, NULL); 653 654 /* 655 * Device detection, registration and update 656 */ 657 658 static int __init pc87360_find(int sioaddr, u8 *devid, unsigned short *addresses) 659 { 660 u16 val; 661 int i; 662 int nrdev; /* logical device count */ 663 664 /* No superio_enter */ 665 666 /* Identify device */ 667 val = superio_inb(sioaddr, DEVID); 668 switch (val) { 669 case 0xE1: /* PC87360 */ 670 case 0xE8: /* PC87363 */ 671 case 0xE4: /* PC87364 */ 672 nrdev = 1; 673 break; 674 case 0xE5: /* PC87365 */ 675 case 0xE9: /* PC87366 */ 676 nrdev = 3; 677 break; 678 default: 679 superio_exit(sioaddr); 680 return -ENODEV; 681 } 682 /* Remember the device id */ 683 *devid = val; 684 685 for (i = 0; i < nrdev; i++) { 686 /* select logical device */ 687 superio_outb(sioaddr, DEV, logdev[i]); 688 689 val = superio_inb(sioaddr, ACT); 690 if (!(val & 0x01)) { 691 printk(KERN_INFO "pc87360: Device 0x%02x not " 692 "activated\n", logdev[i]); 693 continue; 694 } 695 696 val = (superio_inb(sioaddr, BASE) << 8) 697 | superio_inb(sioaddr, BASE + 1); 698 if (!val) { 699 printk(KERN_INFO "pc87360: Base address not set for " 700 "device 0x%02x\n", logdev[i]); 701 continue; 702 } 703 704 addresses[i] = val; 705 706 if (i==0) { /* Fans */ 707 confreg[0] = superio_inb(sioaddr, 0xF0); 708 confreg[1] = superio_inb(sioaddr, 0xF1); 709 710 #ifdef DEBUG 711 printk(KERN_DEBUG "pc87360: Fan 1: mon=%d " 712 "ctrl=%d inv=%d\n", (confreg[0]>>2)&1, 713 (confreg[0]>>3)&1, (confreg[0]>>4)&1); 714 printk(KERN_DEBUG "pc87360: Fan 2: mon=%d " 715 "ctrl=%d inv=%d\n", (confreg[0]>>5)&1, 716 (confreg[0]>>6)&1, (confreg[0]>>7)&1); 717 printk(KERN_DEBUG "pc87360: Fan 3: mon=%d " 718 "ctrl=%d inv=%d\n", confreg[1]&1, 719 (confreg[1]>>1)&1, (confreg[1]>>2)&1); 720 #endif 721 } else if (i==1) { /* Voltages */ 722 /* Are we using thermistors? */ 723 if (*devid == 0xE9) { /* PC87366 */ 724 /* These registers are not logical-device 725 specific, just that we won't need them if 726 we don't use the VLM device */ 727 confreg[2] = superio_inb(sioaddr, 0x2B); 728 confreg[3] = superio_inb(sioaddr, 0x25); 729 730 if (confreg[2] & 0x40) { 731 printk(KERN_INFO "pc87360: Using " 732 "thermistors for temperature " 733 "monitoring\n"); 734 } 735 if (confreg[3] & 0xE0) { 736 printk(KERN_INFO "pc87360: VID " 737 "inputs routed (mode %u)\n", 738 confreg[3] >> 5); 739 } 740 } 741 } 742 } 743 744 superio_exit(sioaddr); 745 return 0; 746 } 747 748 static int pc87360_detect(struct i2c_adapter *adapter) 749 { 750 int i; 751 struct i2c_client *new_client; 752 struct pc87360_data *data; 753 int err = 0; 754 const char *name = "pc87360"; 755 int use_thermistors = 0; 756 757 if (!(data = kmalloc(sizeof(struct pc87360_data), GFP_KERNEL))) 758 return -ENOMEM; 759 memset(data, 0x00, sizeof(struct pc87360_data)); 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.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