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 struct platform_device *f71882fg_pdev = NULL; 78 79 /* Super-I/O Function prototypes */ 80 static inline int superio_inb(int base, int reg); 81 static inline int superio_inw(int base, int reg); 82 static inline void superio_enter(int base); 83 static inline void superio_select(int base, int ld); 84 static inline void superio_exit(int base); 85 86 static inline u16 fan_from_reg ( u16 reg ); 87 88 struct f71882fg_data { 89 unsigned short addr; 90 struct device *hwmon_dev; 91 92 struct mutex update_lock; 93 char valid; /* !=0 if following fields are valid */ 94 unsigned long last_updated; /* In jiffies */ 95 unsigned long last_limits; /* In jiffies */ 96 97 /* Register Values */ 98 u8 in[9]; 99 u8 in1_max; 100 u8 in_status; 101 u8 in_beep; 102 u16 fan[4]; 103 u8 fan_status; 104 u8 fan_beep; 105 u8 temp[3]; 106 u8 temp_ovt[3]; 107 u8 temp_high[3]; 108 u8 temp_hyst[3]; 109 u8 temp_type[3]; 110 u8 temp_status; 111 u8 temp_beep; 112 u8 temp_diode_open; 113 }; 114 115 static u8 f71882fg_read8(struct f71882fg_data *data, u8 reg); 116 static u16 f71882fg_read16(struct f71882fg_data *data, u8 reg); 117 static void f71882fg_write8(struct f71882fg_data *data, u8 reg, u8 val); 118 119 /* Sysfs in*/ 120 static ssize_t show_in(struct device *dev, struct device_attribute *devattr, 121 char *buf); 122 static ssize_t show_in_max(struct device *dev, struct device_attribute 123 *devattr, char *buf); 124 static ssize_t store_in_max(struct device *dev, struct device_attribute 125 *devattr, const char *buf, size_t count); 126 static ssize_t show_in_beep(struct device *dev, struct device_attribute 127 *devattr, char *buf); 128 static ssize_t store_in_beep(struct device *dev, struct device_attribute 129 *devattr, const char *buf, size_t count); 130 static ssize_t show_in_alarm(struct device *dev, struct device_attribute 131 *devattr, char *buf); 132 /* Sysfs Fan */ 133 static ssize_t show_fan(struct device *dev, struct device_attribute *devattr, 134 char *buf); 135 static ssize_t show_fan_beep(struct device *dev, struct device_attribute 136 *devattr, char *buf); 137 static ssize_t store_fan_beep(struct device *dev, struct device_attribute 138 *devattr, const char *buf, size_t count); 139 static ssize_t show_fan_alarm(struct device *dev, struct device_attribute 140 *devattr, char *buf); 141 /* Sysfs Temp */ 142 static ssize_t show_temp(struct device *dev, struct device_attribute 143 *devattr, char *buf); 144 static ssize_t show_temp_max(struct device *dev, struct device_attribute 145 *devattr, char *buf); 146 static ssize_t store_temp_max(struct device *dev, struct device_attribute 147 *devattr, const char *buf, size_t count); 148 static ssize_t show_temp_max_hyst(struct device *dev, struct device_attribute 149 *devattr, char *buf); 150 static ssize_t store_temp_max_hyst(struct device *dev, struct device_attribute 151 *devattr, const char *buf, size_t count); 152 static ssize_t show_temp_crit(struct device *dev, struct device_attribute 153 *devattr, char *buf); 154 static ssize_t store_temp_crit(struct device *dev, struct device_attribute 155 *devattr, const char *buf, size_t count); 156 static ssize_t show_temp_crit_hyst(struct device *dev, struct device_attribute 157 *devattr, char *buf); 158 static ssize_t show_temp_type(struct device *dev, struct device_attribute 159 *devattr, char *buf); 160 static ssize_t show_temp_beep(struct device *dev, struct device_attribute 161 *devattr, char *buf); 162 static ssize_t store_temp_beep(struct device *dev, struct device_attribute 163 *devattr, const char *buf, size_t count); 164 static ssize_t show_temp_alarm(struct device *dev, struct device_attribute 165 *devattr, char *buf); 166 static ssize_t show_temp_fault(struct device *dev, struct device_attribute 167 *devattr, char *buf); 168 /* Sysfs misc */ 169 static ssize_t show_name(struct device *dev, struct device_attribute *devattr, 170 char *buf); 171 172 static int __devinit f71882fg_probe(struct platform_device * pdev); 173 static int __devexit f71882fg_remove(struct platform_device *pdev); 174 static int __init f71882fg_init(void); 175 static int __init f71882fg_find(int sioaddr, unsigned short *address); 176 static int __init f71882fg_device_add(unsigned short address); 177 static void __exit f71882fg_exit(void); 178 179 static struct platform_driver f71882fg_driver = { 180 .driver = { 181 .owner = THIS_MODULE, 182 .name = DRVNAME, 183 }, 184 .probe = f71882fg_probe, 185 .remove = __devexit_p(f71882fg_remove), 186 }; 187 188 static struct device_attribute f71882fg_dev_attr[] = 189 { 190 __ATTR( name, S_IRUGO, show_name, NULL ), 191 }; 192 193 static struct sensor_device_attribute f71882fg_in_temp_attr[] = 194 { 195 SENSOR_ATTR(in0_input, S_IRUGO, show_in, NULL, 0), 196 SENSOR_ATTR(in1_input, S_IRUGO, show_in, NULL, 1), 197 SENSOR_ATTR(in1_max, S_IRUGO|S_IWUSR, show_in_max, store_in_max, 1), 198 SENSOR_ATTR(in1_beep, S_IRUGO|S_IWUSR, show_in_beep, store_in_beep, 1), 199 SENSOR_ATTR(in1_alarm, S_IRUGO, show_in_alarm, NULL, 1), 200 SENSOR_ATTR(in2_input, S_IRUGO, show_in, NULL, 2), 201 SENSOR_ATTR(in3_input, S_IRUGO, show_in, NULL, 3), 202 SENSOR_ATTR(in4_input, S_IRUGO, show_in, NULL, 4), 203 SENSOR_ATTR(in5_input, S_IRUGO, show_in, NULL, 5), 204 SENSOR_ATTR(in6_input, S_IRUGO, show_in, NULL, 6), 205 SENSOR_ATTR(in7_input, S_IRUGO, show_in, NULL, 7), 206 SENSOR_ATTR(in8_input, S_IRUGO, show_in, NULL, 8), 207 SENSOR_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0), 208 SENSOR_ATTR(temp1_max, S_IRUGO|S_IWUSR, show_temp_max, 209 store_temp_max, 0), 210 SENSOR_ATTR(temp1_max_hyst, S_IRUGO|S_IWUSR, show_temp_max_hyst, 211 store_temp_max_hyst, 0), 212 SENSOR_ATTR(temp1_crit, S_IRUGO|S_IWUSR, show_temp_crit, 213 store_temp_crit, 0), 214 SENSOR_ATTR(temp1_crit_hyst, S_IRUGO, show_temp_crit_hyst, NULL, 0), 215 SENSOR_ATTR(temp1_type, S_IRUGO, show_temp_type, NULL, 0), 216 SENSOR_ATTR(temp1_beep, S_IRUGO|S_IWUSR, show_temp_beep, 217 store_temp_beep, 0), 218 SENSOR_ATTR(temp1_alarm, S_IRUGO, show_temp_alarm, NULL, 0), 219 SENSOR_ATTR(temp1_fault, S_IRUGO, show_temp_fault, NULL, 0), 220 SENSOR_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1), 221 SENSOR_ATTR(temp2_max, S_IRUGO|S_IWUSR, show_temp_max, 222 store_temp_max, 1), 223 SENSOR_ATTR(temp2_max_hyst, S_IRUGO|S_IWUSR, show_temp_max_hyst, 224 store_temp_max_hyst, 1), 225 SENSOR_ATTR(temp2_crit, S_IRUGO|S_IWUSR, show_temp_crit, 226 store_temp_crit, 1), 227 SENSOR_ATTR(temp2_crit_hyst, S_IRUGO, show_temp_crit_hyst, NULL, 1), 228 SENSOR_ATTR(temp2_type, S_IRUGO, show_temp_type, NULL, 1), 229 SENSOR_ATTR(temp2_beep, S_IRUGO|S_IWUSR, show_temp_beep, 230 store_temp_beep, 1), 231 SENSOR_ATTR(temp2_alarm, S_IRUGO, show_temp_alarm, NULL, 1), 232 SENSOR_ATTR(temp2_fault, S_IRUGO, show_temp_fault, NULL, 1), 233 SENSOR_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2), 234 SENSOR_ATTR(temp3_max, S_IRUGO|S_IWUSR, show_temp_max, 235 store_temp_max, 2), 236 SENSOR_ATTR(temp3_max_hyst, S_IRUGO|S_IWUSR, show_temp_max_hyst, 237 store_temp_max_hyst, 2), 238 SENSOR_ATTR(temp3_crit, S_IRUGO|S_IWUSR, show_temp_crit, 239 store_temp_crit, 2), 240 SENSOR_ATTR(temp3_crit_hyst, S_IRUGO, show_temp_crit_hyst, NULL, 2), 241 SENSOR_ATTR(temp3_type, S_IRUGO, show_temp_type, NULL, 2), 242 SENSOR_ATTR(temp3_beep, S_IRUGO|S_IWUSR, show_temp_beep, 243 store_temp_beep, 2), 244 SENSOR_ATTR(temp3_alarm, S_IRUGO, show_temp_alarm, NULL, 2), 245 SENSOR_ATTR(temp3_fault, S_IRUGO, show_temp_fault, NULL, 2) 246 }; 247 248 static struct sensor_device_attribute f71882fg_fan_attr[] = 249 { 250 SENSOR_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0), 251 SENSOR_ATTR(fan1_beep, S_IRUGO|S_IWUSR, show_fan_beep, 252 store_fan_beep, 0), 253 SENSOR_ATTR(fan1_alarm, S_IRUGO, show_fan_alarm, NULL, 0), 254 SENSOR_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1), 255 SENSOR_ATTR(fan2_beep, S_IRUGO|S_IWUSR, show_fan_beep, 256 store_fan_beep, 1), 257 SENSOR_ATTR(fan2_alarm, S_IRUGO, show_fan_alarm, NULL, 1), 258 SENSOR_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2), 259 SENSOR_ATTR(fan3_beep, S_IRUGO|S_IWUSR, show_fan_beep, 260 store_fan_beep, 2), 261 SENSOR_ATTR(fan3_alarm, S_IRUGO, show_fan_alarm, NULL, 2), 262 SENSOR_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3), 263 SENSOR_ATTR(fan4_beep, S_IRUGO|S_IWUSR, show_fan_beep, 264 store_fan_beep, 3), 265 SENSOR_ATTR(fan4_alarm, S_IRUGO, show_fan_alarm, NULL, 3) 266 }; 267 268 269 /* Super I/O functions */ 270 static inline int superio_inb(int base, int reg) 271 { 272 outb(reg, base); 273 return inb(base + 1); 274 } 275 276 static int superio_inw(int base, int reg) 277 { 278 int val; 279 outb(reg++, base); 280 val = inb(base + 1) << 8; 281 outb(reg, base); 282 val |= inb(base + 1); 283 return val; 284 } 285 286 static inline void superio_enter(int base) 287 { 288 /* according to the datasheet the key must be send twice! */ 289 outb( SIO_UNLOCK_KEY, base); 290 outb( SIO_UNLOCK_KEY, base); 291 } 292 293 static inline void superio_select( int base, int ld) 294 { 295 outb(SIO_REG_LDSEL, base); 296 outb(ld, base + 1); 297 } 298 299 static inline void superio_exit(int base) 300 { 301 outb(SIO_LOCK_KEY, base); 302 } 303 304 static inline u16 fan_from_reg(u16 reg) 305 { 306 return reg ? (1500000 / reg) : 0; 307 } 308 309 static u8 f71882fg_read8(struct f71882fg_data *data, u8 reg) 310 { 311 u8 val; 312 313 outb(reg, data->addr + ADDR_REG_OFFSET); 314 val = inb(data->addr + DATA_REG_OFFSET); 315 316 return val; 317 } 318 319 static u16 f71882fg_read16(struct f71882fg_data *data, u8 reg) 320 { 321 u16 val; 322 323 outb(reg++, data->addr + ADDR_REG_OFFSET); 324 val = inb(data->addr + DATA_REG_OFFSET) << 8; 325 outb(reg, data->addr + ADDR_REG_OFFSET); 326 val |= inb(data->addr + DATA_REG_OFFSET); 327 328 return val; 329 } 330 331 static void f71882fg_write8(struct f71882fg_data *data, u8 reg, u8 val) 332 { 333 outb(reg, data->addr + ADDR_REG_OFFSET); 334 outb(val, data->addr + DATA_REG_OFFSET); 335 } 336 337 static struct f71882fg_data *f71882fg_update_device(struct device * dev) 338 { 339 struct f71882fg_data *data = dev_get_drvdata(dev); 340 int nr, reg, reg2; 341 342 mutex_lock(&data->update_lock); 343 344 /* Update once every 60 seconds */ 345 if ( time_after(jiffies, data->last_limits + 60 * HZ ) || 346 !data->valid) { 347 data->in1_max = f71882fg_read8(data, F71882FG_REG_IN1_HIGH); 348 data->in_beep = f71882fg_read8(data, F71882FG_REG_IN_BEEP); 349 350 /* Get High & boundary temps*/ 351 for (nr = 0; nr < 3; nr++) { 352 data->temp_ovt[nr] = f71882fg_read8(data, 353 F71882FG_REG_TEMP_OVT(nr)); 354 data->temp_high[nr] = f71882fg_read8(data, 355 F71882FG_REG_TEMP_HIGH(nr)); 356 } 357 358 /* Have to hardcode hyst*/ 359 data->temp_hyst[0] = f71882fg_read8(data, 360 F71882FG_REG_TEMP_HYST1) >> 4; 361 /* Hyst temps 2 & 3 stored in same register */ 362 reg = f71882fg_read8(data, F71882FG_REG_TEMP_HYST23); 363 data->temp_hyst[1] = reg & 0x0F; 364 data->temp_hyst[2] = reg >> 4; 365 366 /* Have to hardcode type, because temp1 is special */ 367 reg = f71882fg_read8(data, F71882FG_REG_TEMP_TYPE); 368 reg2 = f71882fg_read8(data, F71882FG_REG_PECI); 369 if ((reg2 & 0x03) == 0x01) 370 data->temp_type[0] = 6 /* PECI */; 371 else if ((reg2 & 0x03) == 0x02) 372 data->temp_type[0] = 5 /* AMDSI */; 373 else 374 data->temp_type[0] = (reg & 0x02) ? 2 : 4; 375 376 data->temp_type[1] = (reg & 0x04) ? 2 : 4; 377 data->temp_type[2] = (reg & 0x08) ? 2 : 4; 378 379 data->temp_beep = f71882fg_read8(data, F71882FG_REG_TEMP_BEEP); 380 381 data->fan_beep = f71882fg_read8(data, F71882FG_REG_FAN_BEEP); 382 383 data->last_limits = jiffies; 384 } 385 386 /* Update every second */ 387 if (time_after(jiffies, data->last_updated + HZ) || !data->valid) { 388 data->temp_status = f71882fg_read8(data, 389 F71882FG_REG_TEMP_STATUS); 390 data->temp_diode_open = f71882fg_read8(data, 391 F71882FG_REG_TEMP_DIODE_OPEN); 392 for (nr = 0; nr < 3; nr++) 393 data->temp[nr] = f71882fg_read8(data, 394 F71882FG_REG_TEMP(nr)); 395 396 data->fan_status = f71882fg_read8(data, 397 F71882FG_REG_FAN_STATUS); 398 for (nr = 0; nr < 4; nr++) 399 data->fan[nr] = f71882fg_read16(data, 400 F71882FG_REG_FAN(nr)); 401 402 data->in_status = f71882fg_read8(data, 403 F71882FG_REG_IN_STATUS); 404 for (nr = 0; nr < 9; nr++) 405 data->in[nr] = f71882fg_read8(data, 406 F71882FG_REG_IN(nr)); 407 408 data->last_updated = jiffies; 409 data->valid = 1; 410 } 411 412 mutex_unlock(&data->update_lock); 413 414 return data; 415 } 416 417 /* Sysfs Interface */ 418 static ssize_t show_fan(struct device *dev, struct device_attribute *devattr, 419 char *buf) 420 { 421 struct f71882fg_data *data = f71882fg_update_device(dev); 422 int nr = to_sensor_dev_attr(devattr)->index; 423 int speed = fan_from_reg(data->fan[nr]); 424 425 if (speed == FAN_MIN_DETECT) 426 speed = 0; 427 428 return sprintf(buf, "%d\n", speed); 429 } 430 431 static ssize_t show_fan_beep(struct device *dev, struct device_attribute 432 *devattr, char *buf) 433 { 434 struct f71882fg_data *data = f71882fg_update_device(dev); 435 int nr = to_sensor_dev_attr(devattr)->index; 436 437 if (data->fan_beep & (1 << nr)) 438 return sprintf(buf, "1\n"); 439 else 440 return sprintf(buf, "0\n"); 441 } 442 443 static ssize_t store_fan_beep(struct device *dev, struct device_attribute 444 *devattr, const char *buf, size_t count) 445 { 446 struct f71882fg_data *data = dev_get_drvdata(dev); 447 int nr = to_sensor_dev_attr(devattr)->index; 448 int val = simple_strtoul(buf, NULL, 10); 449 450 mutex_lock(&data->update_lock); 451 if (val) 452 data->fan_beep |= 1 << nr; 453 else 454 data->fan_beep &= ~(1 << nr); 455 456 f71882fg_write8(data, F71882FG_REG_FAN_BEEP, data->fan_beep); 457 mutex_unlock(&data->update_lock); 458 459 return count; 460 } 461 462 static ssize_t show_fan_alarm(struct device *dev, struct device_attribute 463 *devattr, char *buf) 464 { 465 struct f71882fg_data *data = f71882fg_update_device(dev); 466 int nr = to_sensor_dev_attr(devattr)->index; 467 468 if (data->fan_status & (1 << nr)) 469 return sprintf(buf, "1\n"); 470 else 471 return sprintf(buf, "0\n"); 472 } 473 474 static ssize_t show_in(struct device *dev, struct device_attribute *devattr, 475 char *buf) 476 { 477 struct f71882fg_data *data = f71882fg_update_device(dev); 478 int nr = to_sensor_dev_attr(devattr)->index; 479 480 return sprintf(buf, "%d\n", data->in[nr] * 8); 481 } 482 483 static ssize_t show_in_max(struct device *dev, struct device_attribute 484 *devattr, char *buf) 485 { 486 struct f71882fg_data *data = f71882fg_update_device(dev); 487 488 return sprintf(buf, "%d\n", data->in1_max * 8); 489 } 490 491 static ssize_t store_in_max(struct device *dev, struct device_attribute 492 *devattr, const char *buf, size_t count) 493 { 494 struct f71882fg_data *data = dev_get_drvdata(dev); 495 int val = simple_strtoul(buf, NULL, 10) / 8; 496 497 if (val > 255) 498 val = 255; 499 500 mutex_lock(&data->update_lock); 501 f71882fg_write8(data, F71882FG_REG_IN1_HIGH, val); 502 data->in1_max = val; 503 mutex_unlock(&data->update_lock); 504 505 return count; 506 } 507 508 static ssize_t show_in_beep(struct device *dev, struct device_attribute 509 *devattr, char *buf) 510 { 511 struct f71882fg_data *data = f71882fg_update_device(dev); 512 int nr = to_sensor_dev_attr(devattr)->index; 513 514 if (data->in_beep & (1 << nr)) 515 return sprintf(buf, "1\n"); 516 else 517 return sprintf(buf, "0\n"); 518 } 519 520 static ssize_t store_in_beep(struct device *dev, struct device_attribute 521 *devattr, const char *buf, size_t count) 522 { 523 struct f71882fg_data *data = dev_get_drvdata(dev); 524 int nr = to_sensor_dev_attr(devattr)->index; 525 int val = simple_strtoul(buf, NULL, 10); 526 527 mutex_lock(&data->update_lock); 528 if (val) 529 data->in_beep |= 1 << nr; 530 else 531 data->in_beep &= ~(1 << nr); 532 533 f71882fg_write8(data, F71882FG_REG_IN_BEEP, data->in_beep); 534 mutex_unlock(&data->update_lock); 535 536 return count; 537 } 538 539 static ssize_t show_in_alarm(struct device *dev, struct device_attribute 540 *devattr, char *buf) 541 { 542 struct f71882fg_data *data = f71882fg_update_device(dev); 543 int nr = to_sensor_dev_attr(devattr)->index; 544 545 if (data->in_status & (1 << nr)) 546 return sprintf(buf, "1\n"); 547 else 548 return sprintf(buf, "0\n"); 549 } 550 551 static ssize_t show_temp(struct device *dev, struct device_attribute *devattr, 552 char *buf) 553 { 554 struct f71882fg_data *data = f71882fg_update_device(dev); 555 int nr = to_sensor_dev_attr(devattr)->index; 556 557 return sprintf(buf, "%d\n", data->temp[nr] * 1000); 558 } 559 560 static ssize_t show_temp_max(struct device *dev, struct device_attribute 561 *devattr, char *buf) 562 { 563 struct f71882fg_data *data = f71882fg_update_device(dev); 564 int nr = to_sensor_dev_attr(devattr)->index; 565 566 return sprintf(buf, "%d\n", data->temp_high[nr] * 1000); 567 } 568 569 static ssize_t store_temp_max(struct device *dev, struct device_attribute 570 *devattr, const char *buf, size_t count) 571 { 572 struct f71882fg_data *data = dev_get_drvdata(dev); 573 int nr = to_sensor_dev_attr(devattr)->index; 574 int val = simple_strtoul(buf, NULL, 10) / 1000; 575 576 if (val > 255) 577 val = 255; 578 579 mutex_lock(&data->update_lock); 580 f71882fg_write8(data, F71882FG_REG_TEMP_HIGH(nr), val); 581 data->temp_high[nr] = val; 582 mutex_unlock(&data->update_lock); 583 584 return count; 585 } 586 587 static ssize_t show_temp_max_hyst(struct device *dev, struct device_attribute 588 *devattr, char *buf) 589 { 590 struct f71882fg_data *data = f71882fg_update_device(dev); 591 int nr = to_sensor_dev_attr(devattr)->index; 592 593 return sprintf(buf, "%d\n", 594 (data->temp_high[nr] - data->temp_hyst[nr]) * 1000); 595 } 596 597 static ssize_t store_temp_max_hyst(struct device *dev, struct device_attribute 598 *devattr, const char *buf, size_t count) 599 { 600 struct f71882fg_data *data = dev_get_drvdata(dev); 601 int nr = to_sensor_dev_attr(devattr)->index; 602 int val = simple_strtoul(buf, NULL, 10) / 1000; 603 ssize_t ret = count; 604 605 mutex_lock(&data->update_lock); 606 607 /* convert abs to relative and check */ 608 val = data->temp_high[nr] - val; 609 if (val < 0 || val > 15) { 610 ret = -EINVAL; 611 goto store_temp_max_hyst_exit; 612 } 613 614 data->temp_hyst[nr] = val; 615 616 /* convert value to register contents */ 617 switch (nr) { 618 case 0: 619 val = val << 4; 620 break; 621 case 1: 622 val = val | (data->temp_hyst[2] << 4); 623 break; 624 case 2: 625 val = data->temp_hyst[1] | (val << 4); 626 break; 627 } 628 629 f71882fg_write8(data, nr ? F71882FG_REG_TEMP_HYST23 : 630 F71882FG_REG_TEMP_HYST1, val); 631 632 store_temp_max_hyst_exit: 633 mutex_unlock(&data->update_lock); 634 return ret; 635 } 636 637 static ssize_t show_temp_crit(struct device *dev, struct device_attribute 638 *devattr, char *buf) 639 { 640 struct f71882fg_data *data = f71882fg_update_device(dev); 641 int nr = to_sensor_dev_attr(devattr)->index; 642 643 return sprintf(buf, "%d\n", data->temp_ovt[nr] * 1000); 644 } 645 646 static ssize_t store_temp_crit(struct device *dev, struct device_attribute 647 *devattr, const char *buf, size_t count) 648 { 649 struct f71882fg_data *data = dev_get_drvdata(dev); 650 int nr = to_sensor_dev_attr(devattr)->index; 651 int val = simple_strtoul(buf, NULL, 10) / 1000; 652 653 if (val > 255) 654 val = 255; 655 656 mutex_lock(&data->update_lock); 657 f71882fg_write8(data, F71882FG_REG_TEMP_OVT(nr), val); 658 data->temp_ovt[nr] = val; 659 mutex_unlock(&data->update_lock); 660 661 return count; 662 } 663 664 static ssize_t show_temp_crit_hyst(struct device *dev, struct device_attribute 665 *devattr, char *buf) 666 { 667 struct f71882fg_data *data = f71882fg_update_device(dev); 668 int nr = to_sensor_dev_attr(devattr)->index; 669 670 return sprintf(buf, "%d\n", 671 (data->temp_ovt[nr] - data->temp_hyst[nr]) * 1000); 672 } 673 674 static ssize_t show_temp_type(struct device *dev, struct device_attribute 675 *devattr, char *buf) 676 { 677 struct f71882fg_data *data = f71882fg_update_device(dev); 678 int nr = to_sensor_dev_attr(devattr)->index; 679 680 return sprintf(buf, "%d\n", data->temp_type[nr]); 681 } 682 683 static ssize_t show_temp_beep(struct device *dev, struct device_attribute 684 *devattr, char *buf) 685 { 686 struct f71882fg_data *data = f71882fg_update_device(dev); 687 int nr = to_sensor_dev_attr(devattr)->index; 688 689 if (data->temp_beep & (1 << (nr + 1))) 690 return sprintf(buf, "1\n"); 691 else 692 return sprintf(buf, "0\n"); 693 } 694 695 static ssize_t store_temp_beep(struct device *dev, struct device_attribute 696 *devattr, const char *buf, size_t count) 697 { 698 struct f71882fg_data *data = dev_get_drvdata(dev); 699 int nr = to_sensor_dev_attr(devattr)->index; 700 int val = simple_strtoul(buf, NULL, 10); 701 702 mutex_lock(&data->update_lock); 703 if (val) 704 data->temp_beep |= 1 << (nr + 1); 705 else 706 data->temp_beep &= ~(1 << (nr + 1)); 707 708 f71882fg_write8(data, F71882FG_REG_TEMP_BEEP, data->temp_beep); 709 mutex_unlock(&data->update_lock); 710 711 return count; 712 } 713 714 static ssize_t show_temp_alarm(struct device *dev, struct device_attribute 715 *devattr, char *buf) 716 { 717 struct f71882fg_data *data = f71882fg_update_device(dev); 718 int nr = to_sensor_dev_attr(devattr)->index; 719 720 if (data->temp_status & (1 << (nr + 1))) 721 return sprintf(buf, "1\n"); 722 else 723 return sprintf(buf, "0\n"); 724 } 725 726 static ssize_t show_temp_fault(struct device *dev, struct device_attribute 727 *devattr, char *buf) 728 { 729 struct f71882fg_data *data = f71882fg_update_device(dev); 730 int nr = to_sensor_dev_attr(devattr)->index; 731 732 if (data->temp_diode_open & (1 << (nr + 1))) 733 return sprintf(buf, "1\n"); 734 else 735 return sprintf(buf, "0\n"); 736 } 737 738 static ssize_t show_name(struct device *dev, struct device_attribute *devattr, 739 char *buf) 740 { 741 return sprintf(buf, DRVNAME "\n"); 742 } 743 744 745 static int __devinit f71882fg_probe(struct platform_device * pdev) 746 { 747 struct f71882fg_data *data; 748 int err, i; 749 u8 start_reg; 750 751 if (!(data = kzalloc(sizeof(struct f71882fg_data), GFP_KERNEL))) 752 return -ENOMEM; 753 754 data->addr = platform_get_resource(pdev, IORESOURCE_IO, 0)->start; 755 mutex_init(&data->update_lock); 756 platform_set_drvdata(pdev, data); 757 758 /* Register sysfs interface files */ 759 for (i = 0; i < ARRAY_SIZE(f71882fg_dev_attr); i++) { 760 err = device_create_file(&pdev->dev, &f71882fg_dev_attr[i]); 761 if (err) 762 goto exit_unregister_sysfs; 763 } 764 765 start_reg = f71882fg_read8(data, F71882FG_REG_START); 766 if (start_reg & 0x01) { 767 for (i = 0; i < ARRAY_SIZE(f71882fg_in_temp_attr); i++) { 768 err = device_create_file(&pdev->dev, 769 &f71882fg_in_temp_attr[i].dev_attr); 770 if (err) 771 goto exit_unregister_sysfs; 772 } 773 } 774 775 if (start_reg & 0x02) { 776 for (i = 0; i < ARRAY_SIZE(f71882fg_fan_attr); i++) { 777 err = device_create_file(&pdev->dev, 778 &f71882fg_fan_attr[i].dev_attr); 779 if (err) 780 goto exit_unregister_sysfs; 781 } 782 } 783 784 data->hwmon_dev = hwmon_device_register(&pdev->dev); 785 if (IS_ERR(data->hwmon_dev)) { 786 err = PTR_ERR(data->hwmon_dev); 787 goto exit_unregister_sysfs; 788 } 789 790 return 0; 791 792 exit_unregister_sysfs: 793 for (i = 0; i < ARRAY_SIZE(f71882fg_dev_attr); i++) 794 device_remove_file(&pdev->dev, &f71882fg_dev_attr[i]); 795 796 for (i = 0; i < ARRAY_SIZE(f71882fg_in_temp_attr); i++) 797 device_remove_file(&pdev->dev, 798 &f71882fg_in_temp_attr[i].dev_attr); 799 800 for (i = 0; i < ARRAY_SIZE(f71882fg_fan_attr); i++) 801 device_remove_file(&pdev->dev, &f71882fg_fan_attr[i].dev_attr); 802 803 kfree(data); 804 805 return err; 806 } 807 808 static int __devexit f71882fg_remove(struct platform_device *pdev) 809 { 810 int i; 811 struct f71882fg_data *data = platform_get_drvdata(pdev); 812 813 platform_set_drvdata(pdev, NULL); 814 hwmon_device_unregister(data->hwmon_dev); 815 816 for (i = 0; i < ARRAY_SIZE(f71882fg_dev_attr); i++) 817 device_remove_file(&pdev->dev, &f71882fg_dev_attr[i]); 818 819 for (i = 0; i < ARRAY_SIZE(f71882fg_in_temp_attr); i++) 820 device_remove_file(&pdev->dev, 821 &f71882fg_in_temp_attr[i].dev_attr); 822 823 for (i = 0; i < ARRAY_SIZE(f71882fg_fan_attr); i++) 824 device_remove_file(&pdev->dev, &f71882fg_fan_attr[i].dev_attr); 825 826 kfree(data); 827 828 return 0; 829 } 830 831 static int __init f71882fg_find(int sioaddr, unsigned short *address) 832 { 833 int err = -ENODEV; 834 u16 devid; 835 u8 start_reg; 836 struct f71882fg_data data; 837 838 superio_enter(sioaddr); 839 840 devid = superio_inw(sioaddr, SIO_REG_MANID); 841 if (devid != SIO_FINTEK_ID) { 842 printk(KERN_INFO DRVNAME ": Not a Fintek device\n"); 843 goto exit; 844 } 845 846 devid = superio_inw(sioaddr, SIO_REG_DEVID); 847 if (devid != SIO_F71882_ID) { 848 printk(KERN_INFO DRVNAME ": Unsupported Fintek device\n"); 849 goto exit; 850 } 851 852 superio_select(sioaddr, SIO_F71882FG_LD_HWM); 853 if (!(superio_inb(sioaddr, SIO_REG_ENABLE) & 0x01)) { 854 printk(KERN_WARNING DRVNAME ": Device not activated\n"); 855 goto exit; 856 } 857 858 *address = superio_inw(sioaddr, SIO_REG_ADDR); 859 if (*address == 0) 860 { 861 printk(KERN_WARNING DRVNAME ": Base address not set\n"); 862 goto exit; 863 } 864 *address &= ~(REGION_LENGTH - 1); /* Ignore 3 LSB */ 865 866 data.addr = *address; 867 start_reg = f71882fg_read8(&data, F71882FG_REG_START); 868 if (!(start_reg & 0x03)) { 869 printk(KERN_WARNING DRVNAME 870 ": Hardware monitoring not activated\n"); 871 goto exit; 872 } 873 874 err = 0; 875 printk(KERN_INFO DRVNAME ": Found F71882FG chip at %#x, revision %d\n", 876 (unsigned int)*address, 877 (int)superio_inb(sioaddr, SIO_REG_DEVREV)); 878 exit: 879 superio_exit(sioaddr); 880 return err; 881 } 882 883 static int __init f71882fg_device_add(unsigned short address) 884 { 885 struct resource res = { 886 .start = address, 887 .end = address + REGION_LENGTH - 1, 888 .flags = IORESOURCE_IO, 889 }; 890 int err; 891 892 f71882fg_pdev = platform_device_alloc(DRVNAME, address); 893 if (!f71882fg_pdev) 894 return -ENOMEM; 895 896 res.name = f71882fg_pdev->name; 897 err = platform_device_add_resources(f71882fg_pdev, &res, 1); 898 if (err) { 899 printk(KERN_ERR DRVNAME ": Device resource addition failed\n"); 900 goto exit_device_put; 901 } 902 903 err = platform_device_add(f71882fg_pdev); 904 if (err) { 905 printk(KERN_ERR DRVNAME ": Device addition failed\n"); 906 goto exit_device_put; 907 } 908 909 return 0; 910 911 exit_device_put: 912 platform_device_put(f71882fg_pdev); 913 914 return err; 915 } 916 917 static int __init f71882fg_init(void) 918 { 919 int err = -ENODEV; 920 unsigned short address; 921 922 if (f71882fg_find(0x2e, &address) && f71882fg_find(0x4e, &address)) 923 goto exit; 924 925 if ((err = platform_driver_register(&f71882fg_driver))) 926 goto exit; 927 928 if ((err = f71882fg_device_add(address))) 929 goto exit_driver; 930 931 return 0; 932 933 exit_driver: 934 platform_driver_unregister(&f71882fg_driver); 935 exit: 936 return err; 937 } 938 939 static void __exit f71882fg_exit(void) 940 { 941 platform_device_unregister(f71882fg_pdev); 942 platform_driver_unregister(&f71882fg_driver); 943 } 944 945 MODULE_DESCRIPTION("F71882FG Hardware Monitoring Driver"); 946 MODULE_AUTHOR("Hans Edgington (hans@edgington.nl)"); 947 MODULE_LICENSE("GPL"); 948 949 module_init(f71882fg_init); 950 module_exit(f71882fg_exit); 951