1 /*************************************************************************** 2 * Copyright (C) 2006 by Hans Edgington <hans@edgington.nl> * 3 * Copyright (C) 2007 by Hans de Goede <j.w.r.degoede@hhs.nl> * 4 * * 5 * This program is free software; you can redistribute it and/or modify * 6 * it under the terms of the GNU General Public License as published by * 7 * the Free Software Foundation; either version 2 of the License, or * 8 * (at your option) any later version. * 9 * * 10 * This program is distributed in the hope that it will be useful, * 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of * 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * 13 * GNU General Public License for more details. * 14 * * 15 * You should have received a copy of the GNU General Public License * 16 * along with this program; if not, write to the * 17 * Free Software Foundation, Inc., * 18 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * 19 ***************************************************************************/ 20 21 #include <linux/module.h> 22 #include <linux/init.h> 23 #include <linux/slab.h> 24 #include <linux/jiffies.h> 25 #include <linux/platform_device.h> 26 #include <linux/hwmon.h> 27 #include <linux/hwmon-sysfs.h> 28 #include <linux/err.h> 29 #include <linux/mutex.h> 30 #include <asm/io.h> 31 32 #define DRVNAME "f71882fg" 33 34 #define SIO_F71882FG_LD_HWM 0x04 /* Hardware monitor logical device*/ 35 #define SIO_UNLOCK_KEY 0x87 /* Key to enable Super-I/O */ 36 #define SIO_LOCK_KEY 0xAA /* Key to diasble Super-I/O */ 37 38 #define SIO_REG_LDSEL 0x07 /* Logical device select */ 39 #define SIO_REG_DEVID 0x20 /* Device ID (2 bytes) */ 40 #define SIO_REG_DEVREV 0x22 /* Device revision */ 41 #define SIO_REG_MANID 0x23 /* Fintek ID (2 bytes) */ 42 #define SIO_REG_ENABLE 0x30 /* Logical device enable */ 43 #define SIO_REG_ADDR 0x60 /* Logical device address (2 bytes) */ 44 45 #define SIO_FINTEK_ID 0x1934 /* Manufacturers ID */ 46 #define SIO_F71882_ID 0x0541 /* Chipset ID */ 47 48 #define REGION_LENGTH 8 49 #define ADDR_REG_OFFSET 5 50 #define DATA_REG_OFFSET 6 51 52 #define F71882FG_REG_PECI 0x0A 53 54 #define F71882FG_REG_IN_STATUS 0x12 55 #define F71882FG_REG_IN_BEEP 0x13 56 #define F71882FG_REG_IN(nr) (0x20 + (nr)) 57 #define F71882FG_REG_IN1_HIGH 0x32 58 59 #define F71882FG_REG_FAN(nr) (0xA0 + (16 * (nr))) 60 #define F71882FG_REG_FAN_STATUS 0x92 61 #define F71882FG_REG_FAN_BEEP 0x93 62 63 #define F71882FG_REG_TEMP(nr) (0x72 + 2 * (nr)) 64 #define F71882FG_REG_TEMP_OVT(nr) (0x82 + 2 * (nr)) 65 #define F71882FG_REG_TEMP_HIGH(nr) (0x83 + 2 * (nr)) 66 #define F71882FG_REG_TEMP_STATUS 0x62 67 #define F71882FG_REG_TEMP_BEEP 0x63 68 #define F71882FG_REG_TEMP_HYST1 0x6C 69 #define F71882FG_REG_TEMP_HYST23 0x6D 70 #define F71882FG_REG_TEMP_TYPE 0x6B 71 #define F71882FG_REG_TEMP_DIODE_OPEN 0x6F 72 73 #define F71882FG_REG_START 0x01 74 75 #define FAN_MIN_DETECT 366 /* Lowest detectable fanspeed */ 76 77 static unsigned short force_id; 78 module_param(force_id, ushort, 0); 79 MODULE_PARM_DESC(force_id, "Override the detected device ID"); 80 81 static struct platform_device *f71882fg_pdev = NULL; 82 83 /* Super-I/O Function prototypes */ 84 static inline int superio_inb(int base, int reg); 85 static inline int superio_inw(int base, int reg); 86 static inline void superio_enter(int base); 87 static inline void superio_select(int base, int ld); 88 static inline void superio_exit(int base); 89 90 struct f71882fg_data { 91 unsigned short addr; 92 struct device *hwmon_dev; 93 94 struct mutex update_lock; 95 char valid; /* !=0 if following fields are valid */ 96 unsigned long last_updated; /* In jiffies */ 97 unsigned long last_limits; /* In jiffies */ 98 99 /* Register Values */ 100 u8 in[9]; 101 u8 in1_max; 102 u8 in_status; 103 u8 in_beep; 104 u16 fan[4]; 105 u8 fan_status; 106 u8 fan_beep; 107 u8 temp[3]; 108 u8 temp_ovt[3]; 109 u8 temp_high[3]; 110 u8 temp_hyst[3]; 111 u8 temp_type[3]; 112 u8 temp_status; 113 u8 temp_beep; 114 u8 temp_diode_open; 115 }; 116 117 /* Sysfs in*/ 118 static ssize_t show_in(struct device *dev, struct device_attribute *devattr, 119 char *buf); 120 static ssize_t show_in_max(struct device *dev, struct device_attribute 121 *devattr, char *buf); 122 static ssize_t store_in_max(struct device *dev, struct device_attribute 123 *devattr, const char *buf, size_t count); 124 static ssize_t show_in_beep(struct device *dev, struct device_attribute 125 *devattr, char *buf); 126 static ssize_t store_in_beep(struct device *dev, struct device_attribute 127 *devattr, const char *buf, size_t count); 128 static ssize_t show_in_alarm(struct device *dev, struct device_attribute 129 *devattr, char *buf); 130 /* Sysfs Fan */ 131 static ssize_t show_fan(struct device *dev, struct device_attribute *devattr, 132 char *buf); 133 static ssize_t show_fan_beep(struct device *dev, struct device_attribute 134 *devattr, char *buf); 135 static ssize_t store_fan_beep(struct device *dev, struct device_attribute 136 *devattr, const char *buf, size_t count); 137 static ssize_t show_fan_alarm(struct device *dev, struct device_attribute 138 *devattr, char *buf); 139 /* Sysfs Temp */ 140 static ssize_t show_temp(struct device *dev, struct device_attribute 141 *devattr, char *buf); 142 static ssize_t show_temp_max(struct device *dev, struct device_attribute 143 *devattr, char *buf); 144 static ssize_t store_temp_max(struct device *dev, struct device_attribute 145 *devattr, const char *buf, size_t count); 146 static ssize_t show_temp_max_hyst(struct device *dev, struct device_attribute 147 *devattr, char *buf); 148 static ssize_t store_temp_max_hyst(struct device *dev, struct device_attribute 149 *devattr, const char *buf, size_t count); 150 static ssize_t show_temp_crit(struct device *dev, struct device_attribute 151 *devattr, char *buf); 152 static ssize_t store_temp_crit(struct device *dev, struct device_attribute 153 *devattr, const char *buf, size_t count); 154 static ssize_t show_temp_crit_hyst(struct device *dev, struct device_attribute 155 *devattr, char *buf); 156 static ssize_t show_temp_type(struct device *dev, struct device_attribute 157 *devattr, char *buf); 158 static ssize_t show_temp_beep(struct device *dev, struct device_attribute 159 *devattr, char *buf); 160 static ssize_t store_temp_beep(struct device *dev, struct device_attribute 161 *devattr, const char *buf, size_t count); 162 static ssize_t show_temp_alarm(struct device *dev, struct device_attribute 163 *devattr, char *buf); 164 static ssize_t show_temp_fault(struct device *dev, struct device_attribute 165 *devattr, char *buf); 166 /* Sysfs misc */ 167 static ssize_t show_name(struct device *dev, struct device_attribute *devattr, 168 char *buf); 169 170 static int __devinit f71882fg_probe(struct platform_device * pdev); 171 static int __devexit f71882fg_remove(struct platform_device *pdev); 172 static int __init f71882fg_init(void); 173 static int __init f71882fg_find(int sioaddr, unsigned short *address); 174 static int __init f71882fg_device_add(unsigned short address); 175 static void __exit f71882fg_exit(void); 176 177 static struct platform_driver f71882fg_driver = { 178 .driver = { 179 .owner = THIS_MODULE, 180 .name = DRVNAME, 181 }, 182 .probe = f71882fg_probe, 183 .remove = __devexit_p(f71882fg_remove), 184 }; 185 186 static struct device_attribute f71882fg_dev_attr[] = 187 { 188 __ATTR( name, S_IRUGO, show_name, NULL ), 189 }; 190 191 static struct sensor_device_attribute f71882fg_in_temp_attr[] = 192 { 193 SENSOR_ATTR(in0_input, S_IRUGO, show_in, NULL, 0), 194 SENSOR_ATTR(in1_input, S_IRUGO, show_in, NULL, 1), 195 SENSOR_ATTR(in1_max, S_IRUGO|S_IWUSR, show_in_max, store_in_max, 1), 196 SENSOR_ATTR(in1_beep, S_IRUGO|S_IWUSR, show_in_beep, store_in_beep, 1), 197 SENSOR_ATTR(in1_alarm, S_IRUGO, show_in_alarm, NULL, 1), 198 SENSOR_ATTR(in2_input, S_IRUGO, show_in, NULL, 2), 199 SENSOR_ATTR(in3_input, S_IRUGO, show_in, NULL, 3), 200 SENSOR_ATTR(in4_input, S_IRUGO, show_in, NULL, 4), 201 SENSOR_ATTR(in5_input, S_IRUGO, show_in, NULL, 5), 202 SENSOR_ATTR(in6_input, S_IRUGO, show_in, NULL, 6), 203 SENSOR_ATTR(in7_input, S_IRUGO, show_in, NULL, 7), 204 SENSOR_ATTR(in8_input, S_IRUGO, show_in, NULL, 8), 205 SENSOR_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0), 206 SENSOR_ATTR(temp1_max, S_IRUGO|S_IWUSR, show_temp_max, 207 store_temp_max, 0), 208 SENSOR_ATTR(temp1_max_hyst, S_IRUGO|S_IWUSR, show_temp_max_hyst, 209 store_temp_max_hyst, 0), 210 SENSOR_ATTR(temp1_crit, S_IRUGO|S_IWUSR, show_temp_crit, 211 store_temp_crit, 0), 212 SENSOR_ATTR(temp1_crit_hyst, S_IRUGO, show_temp_crit_hyst, NULL, 0), 213 SENSOR_ATTR(temp1_type, S_IRUGO, show_temp_type, NULL, 0), 214 SENSOR_ATTR(temp1_beep, S_IRUGO|S_IWUSR, show_temp_beep, 215 store_temp_beep, 0), 216 SENSOR_ATTR(temp1_alarm, S_IRUGO, show_temp_alarm, NULL, 0), 217 SENSOR_ATTR(temp1_fault, S_IRUGO, show_temp_fault, NULL, 0), 218 SENSOR_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1), 219 SENSOR_ATTR(temp2_max, S_IRUGO|S_IWUSR, show_temp_max, 220 store_temp_max, 1), 221 SENSOR_ATTR(temp2_max_hyst, S_IRUGO|S_IWUSR, show_temp_max_hyst, 222 store_temp_max_hyst, 1), 223 SENSOR_ATTR(temp2_crit, S_IRUGO|S_IWUSR, show_temp_crit, 224 store_temp_crit, 1), 225 SENSOR_ATTR(temp2_crit_hyst, S_IRUGO, show_temp_crit_hyst, NULL, 1), 226 SENSOR_ATTR(temp2_type, S_IRUGO, show_temp_type, NULL, 1), 227 SENSOR_ATTR(temp2_beep, S_IRUGO|S_IWUSR, show_temp_beep, 228 store_temp_beep, 1), 229 SENSOR_ATTR(temp2_alarm, S_IRUGO, show_temp_alarm, NULL, 1), 230 SENSOR_ATTR(temp2_fault, S_IRUGO, show_temp_fault, NULL, 1), 231 SENSOR_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2), 232 SENSOR_ATTR(temp3_max, S_IRUGO|S_IWUSR, show_temp_max, 233 store_temp_max, 2), 234 SENSOR_ATTR(temp3_max_hyst, S_IRUGO|S_IWUSR, show_temp_max_hyst, 235 store_temp_max_hyst, 2), 236 SENSOR_ATTR(temp3_crit, S_IRUGO|S_IWUSR, show_temp_crit, 237 store_temp_crit, 2), 238 SENSOR_ATTR(temp3_crit_hyst, S_IRUGO, show_temp_crit_hyst, NULL, 2), 239 SENSOR_ATTR(temp3_type, S_IRUGO, show_temp_type, NULL, 2), 240 SENSOR_ATTR(temp3_beep, S_IRUGO|S_IWUSR, show_temp_beep, 241 store_temp_beep, 2), 242 SENSOR_ATTR(temp3_alarm, S_IRUGO, show_temp_alarm, NULL, 2), 243 SENSOR_ATTR(temp3_fault, S_IRUGO, show_temp_fault, NULL, 2) 244 }; 245 246 static struct sensor_device_attribute f71882fg_fan_attr[] = 247 { 248 SENSOR_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0), 249 SENSOR_ATTR(fan1_beep, S_IRUGO|S_IWUSR, show_fan_beep, 250 store_fan_beep, 0), 251 SENSOR_ATTR(fan1_alarm, S_IRUGO, show_fan_alarm, NULL, 0), 252 SENSOR_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1), 253 SENSOR_ATTR(fan2_beep, S_IRUGO|S_IWUSR, show_fan_beep, 254 store_fan_beep, 1), 255 SENSOR_ATTR(fan2_alarm, S_IRUGO, show_fan_alarm, NULL, 1), 256 SENSOR_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2), 257 SENSOR_ATTR(fan3_beep, S_IRUGO|S_IWUSR, show_fan_beep, 258 store_fan_beep, 2), 259 SENSOR_ATTR(fan3_alarm, S_IRUGO, show_fan_alarm, NULL, 2), 260 SENSOR_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3), 261 SENSOR_ATTR(fan4_beep, S_IRUGO|S_IWUSR, show_fan_beep, 262 store_fan_beep, 3), 263 SENSOR_ATTR(fan4_alarm, S_IRUGO, show_fan_alarm, NULL, 3) 264 }; 265 266 267 /* Super I/O functions */ 268 static inline int superio_inb(int base, int reg) 269 { 270 outb(reg, base); 271 return inb(base + 1); 272 } 273 274 static int superio_inw(int base, int reg) 275 { 276 int val; 277 outb(reg++, base); 278 val = inb(base + 1) << 8; 279 outb(reg, base); 280 val |= inb(base + 1); 281 return val; 282 } 283 284 static inline void superio_enter(int base) 285 { 286 /* according to the datasheet the key must be send twice! */ 287 outb( SIO_UNLOCK_KEY, base); 288 outb( SIO_UNLOCK_KEY, base); 289 } 290 291 static inline void superio_select( int base, int ld) 292 { 293 outb(SIO_REG_LDSEL, base); 294 outb(ld, base + 1); 295 } 296 297 static inline void superio_exit(int base) 298 { 299 outb(SIO_LOCK_KEY, base); 300 } 301 302 static inline u16 fan_from_reg(u16 reg) 303 { 304 return reg ? (1500000 / reg) : 0; 305 } 306 307 static u8 f71882fg_read8(struct f71882fg_data *data, u8 reg) 308 { 309 u8 val; 310 311 outb(reg, data->addr + ADDR_REG_OFFSET); 312 val = inb(data->addr + DATA_REG_OFFSET); 313 314 return val; 315 } 316 317 static u16 f71882fg_read16(struct f71882fg_data *data, u8 reg) 318 { 319 u16 val; 320 321 outb(reg++, data->addr + ADDR_REG_OFFSET); 322 val = inb(data->addr + DATA_REG_OFFSET) << 8; 323 outb(reg, data->addr + ADDR_REG_OFFSET); 324 val |= inb(data->addr + DATA_REG_OFFSET); 325 326 return val; 327 } 328 329 static void f71882fg_write8(struct f71882fg_data *data, u8 reg, u8 val) 330 { 331 outb(reg, data->addr + ADDR_REG_OFFSET); 332 outb(val, data->addr + DATA_REG_OFFSET); 333 } 334 335 static struct f71882fg_data *f71882fg_update_device(struct device * dev) 336 { 337 struct f71882fg_data *data = dev_get_drvdata(dev); 338 int nr, reg, reg2; 339 340 mutex_lock(&data->update_lock); 341 342 /* Update once every 60 seconds */ 343 if ( time_after(jiffies, data->last_limits + 60 * HZ ) || 344 !data->valid) { 345 data->in1_max = f71882fg_read8(data, F71882FG_REG_IN1_HIGH); 346 data->in_beep = f71882fg_read8(data, F71882FG_REG_IN_BEEP); 347 348 /* Get High & boundary temps*/ 349 for (nr = 0; nr < 3; nr++) { 350 data->temp_ovt[nr] = f71882fg_read8(data, 351 F71882FG_REG_TEMP_OVT(nr)); 352 data->temp_high[nr] = f71882fg_read8(data, 353 F71882FG_REG_TEMP_HIGH(nr)); 354 } 355 356 /* Have to hardcode hyst*/ 357 data->temp_hyst[0] = f71882fg_read8(data, 358 F71882FG_REG_TEMP_HYST1) >> 4; 359 /* Hyst temps 2 & 3 stored in same register */ 360 reg = f71882fg_read8(data, F71882FG_REG_TEMP_HYST23); 361 data->temp_hyst[1] = reg & 0x0F; 362 data->temp_hyst[2] = reg >> 4; 363 364 /* Have to hardcode type, because temp1 is special */ 365 reg = f71882fg_read8(data, F71882FG_REG_TEMP_TYPE); 366 reg2 = f71882fg_read8(data, F71882FG_REG_PECI); 367 if ((reg2 & 0x03) == 0x01) 368 data->temp_type[0] = 6 /* PECI */; 369 else if ((reg2 & 0x03) == 0x02) 370 data->temp_type[0] = 5 /* AMDSI */; 371 else 372 data->temp_type[0] = (reg & 0x02) ? 2 : 4; 373 374 data->temp_type[1] = (reg & 0x04) ? 2 : 4; 375 data->temp_type[2] = (reg & 0x08) ? 2 : 4; 376 377 data->temp_beep = f71882fg_read8(data, F71882FG_REG_TEMP_BEEP); 378 379 data->fan_beep = f71882fg_read8(data, F71882FG_REG_FAN_BEEP); 380 381 data->last_limits = jiffies; 382 } 383 384 /* Update every second */ 385 if (time_after(jiffies, data->last_updated + HZ) || !data->valid) { 386 data->temp_status = f71882fg_read8(data, 387 F71882FG_REG_TEMP_STATUS); 388 data->temp_diode_open = f71882fg_read8(data, 389 F71882FG_REG_TEMP_DIODE_OPEN); 390 for (nr = 0; nr < 3; nr++) 391 data->temp[nr] = f71882fg_read8(data, 392 F71882FG_REG_TEMP(nr)); 393 394 data->fan_status = f71882fg_read8(data, 395 F71882FG_REG_FAN_STATUS); 396 for (nr = 0; nr < 4; nr++) 397 data->fan[nr] = f71882fg_read16(data, 398 F71882FG_REG_FAN(nr)); 399 400 data->in_status = f71882fg_read8(data, 401 F71882FG_REG_IN_STATUS); 402 for (nr = 0; nr < 9; nr++) 403 data->in[nr] = f71882fg_read8(data, 404 F71882FG_REG_IN(nr)); 405 406 data->last_updated = jiffies; 407 data->valid = 1; 408 } 409 410 mutex_unlock(&data->update_lock); 411 412 return data; 413 } 414 415 /* Sysfs Interface */ 416 static ssize_t show_fan(struct device *dev, struct device_attribute *devattr, 417 char *buf) 418 { 419 struct f71882fg_data *data = f71882fg_update_device(dev); 420 int nr = to_sensor_dev_attr(devattr)->index; 421 int speed = fan_from_reg(data->fan[nr]); 422 423 if (speed == FAN_MIN_DETECT) 424 speed = 0; 425 426 return sprintf(buf, "%d\n", speed); 427 } 428 429 static ssize_t show_fan_beep(struct device *dev, struct device_attribute 430 *devattr, char *buf) 431 { 432 struct f71882fg_data *data = f71882fg_update_device(dev); 433 int nr = to_sensor_dev_attr(devattr)->index; 434 435 if (data->fan_beep & (1 << nr)) 436 return sprintf(buf, "1\n"); 437 else 438 return sprintf(buf, "0\n"); 439 } 440 441 static ssize_t store_fan_beep(struct device *dev, struct device_attribute 442 *devattr, const char *buf, size_t count) 443 { 444 struct f71882fg_data *data = dev_get_drvdata(dev); 445 int nr = to_sensor_dev_attr(devattr)->index; 446 int val = simple_strtoul(buf, NULL, 10); 447 448 mutex_lock(&data->update_lock); 449 if (val) 450 data->fan_beep |= 1 << nr; 451 else 452 data->fan_beep &= ~(1 << nr); 453 454 f71882fg_write8(data, F71882FG_REG_FAN_BEEP, data->fan_beep); 455 mutex_unlock(&data->update_lock); 456 457 return count; 458 } 459 460 static ssize_t show_fan_alarm(struct device *dev, struct device_attribute 461 *devattr, char *buf) 462 { 463 struct f71882fg_data *data = f71882fg_update_device(dev); 464 int nr = to_sensor_dev_attr(devattr)->index; 465 466 if (data->fan_status & (1 << nr)) 467 return sprintf(buf, "1\n"); 468 else 469 return sprintf(buf, "0\n"); 470 } 471 472 static ssize_t show_in(struct device *dev, struct device_attribute *devattr, 473 char *buf) 474 { 475 struct f71882fg_data *data = f71882fg_update_device(dev); 476 int nr = to_sensor_dev_attr(devattr)->index; 477 478 return sprintf(buf, "%d\n", data->in[nr] * 8); 479 } 480 481 static ssize_t show_in_max(struct device *dev, struct device_attribute 482 *devattr, char *buf) 483 { 484 struct f71882fg_data *data = f71882fg_update_device(dev); 485 486 return sprintf(buf, "%d\n", data->in1_max * 8); 487 } 488 489 static ssize_t store_in_max(struct device *dev, struct device_attribute 490 *devattr, const char *buf, size_t count) 491 { 492 struct f71882fg_data *data = dev_get_drvdata(dev); 493 int val = simple_strtoul(buf, NULL, 10) / 8; 494 495 if (val > 255) 496 val = 255; 497 498 mutex_lock(&data->update_lock); 499 f71882fg_write8(data, F71882FG_REG_IN1_HIGH, val); 500 data->in1_max = val; 501 mutex_unlock(&data->update_lock); 502 503 return count; 504 } 505 506 static ssize_t show_in_beep(struct device *dev, struct device_attribute 507 *devattr, char *buf) 508 { 509 struct f71882fg_data *data = f71882fg_update_device(dev); 510 int nr = to_sensor_dev_attr(devattr)->index; 511 512 if (data->in_beep & (1 << nr)) 513 return sprintf(buf, "1\n"); 514 else 515 return sprintf(buf, "0\n"); 516 } 517 518 static ssize_t store_in_beep(struct device *dev, struct device_attribute 519 *devattr, const char *buf, size_t count) 520 { 521 struct f71882fg_data *data = dev_get_drvdata(dev); 522 int nr = to_sensor_dev_attr(devattr)->index; 523 int val = simple_strtoul(buf, NULL, 10); 524 525 mutex_lock(&data->update_lock); 526 if (val) 527 data->in_beep |= 1 << nr; 528 else 529 data->in_beep &= ~(1 << nr); 530 531 f71882fg_write8(data, F71882FG_REG_IN_BEEP, data->in_beep); 532 mutex_unlock(&data->update_lock); 533 534 return count; 535 } 536 537 static ssize_t show_in_alarm(struct device *dev, struct device_attribute 538 *devattr, char *buf) 539 { 540 struct f71882fg_data *data = f71882fg_update_device(dev); 541 int nr = to_sensor_dev_attr(devattr)->index; 542 543 if (data->in_status & (1 << nr)) 544 return sprintf(buf, "1\n"); 545 else 546 return sprintf(buf, "0\n"); 547 } 548 549 static ssize_t show_temp(struct device *dev, struct device_attribute *devattr, 550 char *buf) 551 { 552 struct f71882fg_data *data = f71882fg_update_device(dev); 553 int nr = to_sensor_dev_attr(devattr)->index; 554 555 return sprintf(buf, "%d\n", data->temp[nr] * 1000); 556 } 557 558 static ssize_t show_temp_max(struct device *dev, struct device_attribute 559 *devattr, char *buf) 560 { 561 struct f71882fg_data *data = f71882fg_update_device(dev); 562 int nr = to_sensor_dev_attr(devattr)->index; 563 564 return sprintf(buf, "%d\n", data->temp_high[nr] * 1000); 565 } 566 567 static ssize_t store_temp_max(struct device *dev, struct device_attribute 568 *devattr, const char *buf, size_t count) 569 { 570 struct f71882fg_data *data = dev_get_drvdata(dev); 571 int nr = to_sensor_dev_attr(devattr)->index; 572 int val = simple_strtoul(buf, NULL, 10) / 1000; 573 574 if (val > 255) 575 val = 255; 576 577 mutex_lock(&data->update_lock); 578 f71882fg_write8(data, F71882FG_REG_TEMP_HIGH(nr), val); 579 data->temp_high[nr] = val; 580 mutex_unlock(&data->update_lock); 581 582 return count; 583 } 584 585 static ssize_t show_temp_max_hyst(struct device *dev, struct device_attribute 586 *devattr, char *buf) 587 { 588 struct f71882fg_data *data = f71882fg_update_device(dev); 589 int nr = to_sensor_dev_attr(devattr)->index; 590 591 return sprintf(buf, "%d\n", 592 (data->temp_high[nr] - data->temp_hyst[nr]) * 1000); 593 } 594 595 static ssize_t store_temp_max_hyst(struct device *dev, struct device_attribute 596 *devattr, const char *buf, size_t count) 597 { 598 struct f71882fg_data *data = dev_get_drvdata(dev); 599 int nr = to_sensor_dev_attr(devattr)->index; 600 int val = simple_strtoul(buf, NULL, 10) / 1000; 601 ssize_t ret = count; 602 603 mutex_lock(&data->update_lock); 604 605 /* convert abs to relative and check */ 606 val = data->temp_high[nr] - val; 607 if (val < 0 || val > 15) { 608 ret = -EINVAL; 609 goto store_temp_max_hyst_exit; 610 } 611 612 data->temp_hyst[nr] = val; 613 614 /* convert value to register contents */ 615 switch (nr) { 616 case 0: 617 val = val << 4; 618 break; 619 case 1: 620 val = val | (data->temp_hyst[2] << 4); 621 break; 622 case 2: 623 val = data->temp_hyst[1] | (val << 4); 624 break; 625 } 626 627 f71882fg_write8(data, nr ? F71882FG_REG_TEMP_HYST23 : 628 F71882FG_REG_TEMP_HYST1, val); 629 630 store_temp_max_hyst_exit: 631 mutex_unlock(&data->update_lock); 632 return ret; 633 } 634 635 static ssize_t show_temp_crit(struct device *dev, struct device_attribute 636 *devattr, char *buf) 637 { 638 struct f71882fg_data *data = f71882fg_update_device(dev); 639 int nr = to_sensor_dev_attr(devattr)->index; 640 641 return sprintf(buf, "%d\n", data->temp_ovt[nr] * 1000); 642 } 643 644 static ssize_t store_temp_crit(struct device *dev, struct device_attribute 645 *devattr, const char *buf, size_t count) 646 { 647 struct f71882fg_data *data = dev_get_drvdata(dev); 648 int nr = to_sensor_dev_attr(devattr)->index; 649 int val = simple_strtoul(buf, NULL, 10) / 1000; 650 651 if (val > 255) 652 val = 255; 653 654 mutex_lock(&data->update_lock); 655 f71882fg_write8(data, F71882FG_REG_TEMP_OVT(nr), val); 656 data->temp_ovt[nr] = val; 657 mutex_unlock(&data->update_lock); 658 659 return count; 660 } 661 662 static ssize_t show_temp_crit_hyst(struct device *dev, struct device_attribute 663 *devattr, char *buf) 664 { 665 struct f71882fg_data *data = f71882fg_update_device(dev); 666 int nr = to_sensor_dev_attr(devattr)->index; 667 668 return sprintf(buf, "%d\n", 669 (data->temp_ovt[nr] - data->temp_hyst[nr]) * 1000); 670 } 671 672 static ssize_t show_temp_type(struct device *dev, struct device_attribute 673 *devattr, char *buf) 674 { 675 struct f71882fg_data *data = f71882fg_update_device(dev); 676 int nr = to_sensor_dev_attr(devattr)->index; 677 678 return sprintf(buf, "%d\n", data->temp_type[nr]); 679 } 680 681 static ssize_t show_temp_beep(struct device *dev, struct device_attribute 682 *devattr, char *buf) 683 { 684 struct f71882fg_data *data = f71882fg_update_device(dev); 685 int nr = to_sensor_dev_attr(devattr)->index; 686 687 if (data->temp_beep & (1 << (nr + 1))) 688 return sprintf(buf, "1\n"); 689 else 690 return sprintf(buf, "0\n"); 691 } 692 693 static ssize_t store_temp_beep(struct device *dev, struct device_attribute 694 *devattr, const char *buf, size_t count) 695 { 696 struct f71882fg_data *data = dev_get_drvdata(dev); 697 int nr = to_sensor_dev_attr(devattr)->index; 698 int val = simple_strtoul(buf, NULL, 10); 699 700 mutex_lock(&data->update_lock); 701 if (val) 702 data->temp_beep |= 1 << (nr + 1); 703 else 704 data->temp_beep &= ~(1 << (nr + 1)); 705 706 f71882fg_write8(data, F71882FG_REG_TEMP_BEEP, data->temp_beep); 707 mutex_unlock(&data->update_lock); 708 709 return count; 710 } 711 712 static ssize_t show_temp_alarm(struct device *dev, struct device_attribute 713 *devattr, char *buf) 714 { 715 struct f71882fg_data *data = f71882fg_update_device(dev); 716 int nr = to_sensor_dev_attr(devattr)->index; 717 718 if (data->temp_status & (1 << (nr + 1))) 719 return sprintf(buf, "1\n"); 720 else 721 return sprintf(buf, "0\n"); 722 } 723 724 static ssize_t show_temp_fault(struct device *dev, struct device_attribute 725 *devattr, char *buf) 726 { 727 struct f71882fg_data *data = f71882fg_update_device(dev); 728 int nr = to_sensor_dev_attr(devattr)->index; 729 730 if (data->temp_diode_open & (1 << (nr + 1))) 731 return sprintf(buf, "1\n"); 732 else 733 return sprintf(buf, "0\n"); 734 } 735 736 static ssize_t show_name(struct device *dev, struct device_attribute *devattr, 737 char *buf) 738 { 739 return sprintf(buf, DRVNAME "\n"); 740 } 741 742 743 static int __devinit f71882fg_probe(struct platform_device * pdev) 744 { 745 struct f71882fg_data *data; 746 int err, i; 747 u8 start_reg; 748 749 if (!(data = kzalloc(sizeof(struct f71882fg_data), GFP_KERNEL))) 750 return -ENOMEM; 751 752 data->addr = platform_get_resource(pdev, IORESOURCE_IO, 0)->start; 753 mutex_init(&data->update_lock); 754 platform_set_drvdata(pdev, data); 755 756 /* Register sysfs interface files */ 757 for (i = 0; i < ARRAY_SIZE(f71882fg_dev_attr); i++) { 758 err = device_create_file(&pdev->dev, &f71882fg_dev_attr[i]); 759 if (err) 760 goto exit_unregister_sysfs; 761 } 762 763 start_reg = f71882fg_read8(data, F71882FG_REG_START); 764 if (start_reg & 0x01) { 765 for (i = 0; i < ARRAY_SIZE(f71882fg_in_temp_attr); i++) { 766 err = device_create_file(&pdev->dev, 767 &f71882fg_in_temp_attr[i].dev_attr); 768 if (err) 769 goto exit_unregister_sysfs; 770 } 771 } 772 773 if (start_reg & 0x02) { 774 for (i = 0; i < ARRAY_SIZE(f71882fg_fan_attr); i++) { 775 err = device_create_file(&pdev->dev, 776 &f71882fg_fan_attr[i].dev_attr); 777 if (err) 778 goto exit_unregister_sysfs; 779 } 780 } 781 782 data->hwmon_dev = hwmon_device_register(&pdev->dev); 783 if (IS_ERR(data->hwmon_dev)) { 784 err = PTR_ERR(data->hwmon_dev); 785 goto exit_unregister_sysfs; 786 } 787 788 return 0; 789 790 exit_unregister_sysfs: 791 for (i = 0; i < ARRAY_SIZE(f71882fg_dev_attr); i++) 792 device_remove_file(&pdev->dev, &f71882fg_dev_attr[i]); 793 794 for (i = 0; i < ARRAY_SIZE(f71882fg_in_temp_attr); i++) 795 device_remove_file(&pdev->dev, 796 &f71882fg_in_temp_attr[i].dev_attr); 797 798 for (i = 0; i < ARRAY_SIZE(f71882fg_fan_attr); i++) 799 device_remove_file(&pdev->dev, &f71882fg_fan_attr[i].dev_attr); 800 801 kfree(data); 802 803 return err; 804 } 805 806 static int __devexit f71882fg_remove(struct platform_device *pdev) 807 { 808 int i; 809 struct f71882fg_data *data = platform_get_drvdata(pdev); 810 811 platform_set_drvdata(pdev, NULL); 812 hwmon_device_unregister(data->hwmon_dev); 813 814 for (i = 0; i < ARRAY_SIZE(f71882fg_dev_attr); i++) 815 device_remove_file(&pdev->dev, &f71882fg_dev_attr[i]); 816 817 for (i = 0; i < ARRAY_SIZE(f71882fg_in_temp_attr); i++) 818 device_remove_file(&pdev->dev, 819 &f71882fg_in_temp_attr[i].dev_attr); 820 821 for (i = 0; i < ARRAY_SIZE(f71882fg_fan_attr); i++) 822 device_remove_file(&pdev->dev, &f71882fg_fan_attr[i].dev_attr); 823 824 kfree(data); 825 826 return 0; 827 } 828 829 static int __init f71882fg_find(int sioaddr, unsigned short *address) 830 { 831 int err = -ENODEV; 832 u16 devid; 833 u8 start_reg; 834 struct f71882fg_data data; 835 836 superio_enter(sioaddr); 837 838 devid = superio_inw(sioaddr, SIO_REG_MANID); 839 if (devid != SIO_FINTEK_ID) { 840 printk(KERN_INFO DRVNAME ": Not a Fintek device\n"); 841 goto exit; 842 } 843 844 devid = force_id ? force_id : superio_inw(sioaddr, SIO_REG_DEVID); 845 if (devid != SIO_F71882_ID) { 846 printk(KERN_INFO DRVNAME ": Unsupported Fintek device\n"); 847 goto exit; 848 } 849 850 superio_select(sioaddr, SIO_F71882FG_LD_HWM); 851 if (!(superio_inb(sioaddr, SIO_REG_ENABLE) & 0x01)) { 852 printk(KERN_WARNING DRVNAME ": Device not activated\n"); 853 goto exit; 854 } 855 856 *address = superio_inw(sioaddr, SIO_REG_ADDR); 857 if (*address == 0) 858 { 859 printk(KERN_WARNING DRVNAME ": Base address not set\n"); 860 goto exit; 861 } 862 *address &= ~(REGION_LENGTH - 1); /* Ignore 3 LSB */ 863 864 data.addr = *address; 865 start_reg = f71882fg_read8(&data, F71882FG_REG_START); 866 if (!(start_reg & 0x03)) { 867 printk(KERN_WARNING DRVNAME 868 ": Hardware monitoring not activated\n"); 869 goto exit; 870 } 871 872 err = 0; 873 printk(KERN_INFO DRVNAME ": Found F71882FG chip at %#x, revision %d\n", 874 (unsigned int)*address, 875 (int)superio_inb(sioaddr, SIO_REG_DEVREV)); 876 exit: 877 superio_exit(sioaddr); 878 return err; 879 } 880 881 static int __init f71882fg_device_add(unsigned short address) 882 { 883 struct resource res = { 884 .start = address, 885 .end = address + REGION_LENGTH - 1, 886 .flags = IORESOURCE_IO, 887 }; 888 int err; 889 890 f71882fg_pdev = platform_device_alloc(DRVNAME, address); 891 if (!f71882fg_pdev) 892 return -ENOMEM; 893 894 res.name = f71882fg_pdev->name; 895 err = platform_device_add_resources(f71882fg_pdev, &res, 1); 896 if (err) { 897 printk(KERN_ERR DRVNAME ": Device resource addition failed\n"); 898 goto exit_device_put; 899 } 900 901 err = platform_device_add(f71882fg_pdev); 902 if (err) { 903 printk(KERN_ERR DRVNAME ": Device addition failed\n"); 904 goto exit_device_put; 905 } 906 907 return 0; 908 909 exit_device_put: 910 platform_device_put(f71882fg_pdev); 911 912 return err; 913 } 914 915 static int __init f71882fg_init(void) 916 { 917 int err = -ENODEV; 918 unsigned short address; 919 920 if (f71882fg_find(0x2e, &address) && f71882fg_find(0x4e, &address)) 921 goto exit; 922 923 if ((err = platform_driver_register(&f71882fg_driver))) 924 goto exit; 925 926 if ((err = f71882fg_device_add(address))) 927 goto exit_driver; 928 929 return 0; 930 931 exit_driver: 932 platform_driver_unregister(&f71882fg_driver); 933 exit: 934 return err; 935 } 936 937 static void __exit f71882fg_exit(void) 938 { 939 platform_device_unregister(f71882fg_pdev); 940 platform_driver_unregister(&f71882fg_driver); 941 } 942 943 MODULE_DESCRIPTION("F71882FG Hardware Monitoring Driver"); 944 MODULE_AUTHOR("Hans Edgington (hans@edgington.nl)"); 945 MODULE_LICENSE("GPL"); 946 947 module_init(f71882fg_init); 948 module_exit(f71882fg_exit); 949