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 static inline u16 fan_from_reg ( u16 reg ); 91 92 struct f71882fg_data { 93 unsigned short addr; 94 struct device *hwmon_dev; 95 96 struct mutex update_lock; 97 char valid; /* !=0 if following fields are valid */ 98 unsigned long last_updated; /* In jiffies */ 99 unsigned long last_limits; /* In jiffies */ 100 101 /* Register Values */ 102 u8 in[9]; 103 u8 in1_max; 104 u8 in_status; 105 u8 in_beep; 106 u16 fan[4]; 107 u8 fan_status; 108 u8 fan_beep; 109 u8 temp[3]; 110 u8 temp_ovt[3]; 111 u8 temp_high[3]; 112 u8 temp_hyst[3]; 113 u8 temp_type[3]; 114 u8 temp_status; 115 u8 temp_beep; 116 u8 temp_diode_open; 117 }; 118 119 static u8 f71882fg_read8(struct f71882fg_data *data, u8 reg); 120 static u16 f71882fg_read16(struct f71882fg_data *data, u8 reg); 121 static void f71882fg_write8(struct f71882fg_data *data, u8 reg, u8 val); 122 123 /* Sysfs in*/ 124 static ssize_t show_in(struct device *dev, struct device_attribute *devattr, 125 char *buf); 126 static ssize_t show_in_max(struct device *dev, struct device_attribute 127 *devattr, char *buf); 128 static ssize_t store_in_max(struct device *dev, struct device_attribute 129 *devattr, const char *buf, size_t count); 130 static ssize_t show_in_beep(struct device *dev, struct device_attribute 131 *devattr, char *buf); 132 static ssize_t store_in_beep(struct device *dev, struct device_attribute 133 *devattr, const char *buf, size_t count); 134 static ssize_t show_in_alarm(struct device *dev, struct device_attribute 135 *devattr, char *buf); 136 /* Sysfs Fan */ 137 static ssize_t show_fan(struct device *dev, struct device_attribute *devattr, 138 char *buf); 139 static ssize_t show_fan_beep(struct device *dev, struct device_attribute 140 *devattr, char *buf); 141 static ssize_t store_fan_beep(struct device *dev, struct device_attribute 142 *devattr, const char *buf, size_t count); 143 static ssize_t show_fan_alarm(struct device *dev, struct device_attribute 144 *devattr, char *buf); 145 /* Sysfs Temp */ 146 static ssize_t show_temp(struct device *dev, struct device_attribute 147 *devattr, char *buf); 148 static ssize_t show_temp_max(struct device *dev, struct device_attribute 149 *devattr, char *buf); 150 static ssize_t store_temp_max(struct device *dev, struct device_attribute 151 *devattr, const char *buf, size_t count); 152 static ssize_t show_temp_max_hyst(struct device *dev, struct device_attribute 153 *devattr, char *buf); 154 static ssize_t store_temp_max_hyst(struct device *dev, struct device_attribute 155 *devattr, const char *buf, size_t count); 156 static ssize_t show_temp_crit(struct device *dev, struct device_attribute 157 *devattr, char *buf); 158 static ssize_t store_temp_crit(struct device *dev, struct device_attribute 159 *devattr, const char *buf, size_t count); 160 static ssize_t show_temp_crit_hyst(struct device *dev, struct device_attribute 161 *devattr, char *buf); 162 static ssize_t show_temp_type(struct device *dev, struct device_attribute 163 *devattr, char *buf); 164 static ssize_t show_temp_beep(struct device *dev, struct device_attribute 165 *devattr, char *buf); 166 static ssize_t store_temp_beep(struct device *dev, struct device_attribute 167 *devattr, const char *buf, size_t count); 168 static ssize_t show_temp_alarm(struct device *dev, struct device_attribute 169 *devattr, char *buf); 170 static ssize_t show_temp_fault(struct device *dev, struct device_attribute 171 *devattr, char *buf); 172 /* Sysfs misc */ 173 static ssize_t show_name(struct device *dev, struct device_attribute *devattr, 174 char *buf); 175 176 static int __devinit f71882fg_probe(struct platform_device * pdev); 177 static int __devexit f71882fg_remove(struct platform_device *pdev); 178 static int __init f71882fg_init(void); 179 static int __init f71882fg_find(int sioaddr, unsigned short *address); 180 static int __init f71882fg_device_add(unsigned short address); 181 static void __exit f71882fg_exit(void); 182 183 static struct platform_driver f71882fg_driver = { 184 .driver = { 185 .owner = THIS_MODULE, 186 .name = DRVNAME, 187 }, 188 .probe = f71882fg_probe, 189 .remove = __devexit_p(f71882fg_remove), 190 }; 191 192 static struct device_attribute f71882fg_dev_attr[] = 193 { 194 __ATTR( name, S_IRUGO, show_name, NULL ), 195 }; 196 197 static struct sensor_device_attribute f71882fg_in_temp_attr[] = 198 { 199 SENSOR_ATTR(in0_input, S_IRUGO, show_in, NULL, 0), 200 SENSOR_ATTR(in1_input, S_IRUGO, show_in, NULL, 1), 201 SENSOR_ATTR(in1_max, S_IRUGO|S_IWUSR, show_in_max, store_in_max, 1), 202 SENSOR_ATTR(in1_beep, S_IRUGO|S_IWUSR, show_in_beep, store_in_beep, 1), 203 SENSOR_ATTR(in1_alarm, S_IRUGO, show_in_alarm, NULL, 1), 204 SENSOR_ATTR(in2_input, S_IRUGO, show_in, NULL, 2), 205 SENSOR_ATTR(in3_input, S_IRUGO, show_in, NULL, 3), 206 SENSOR_ATTR(in4_input, S_IRUGO, show_in, NULL, 4), 207 SENSOR_ATTR(in5_input, S_IRUGO, show_in, NULL, 5), 208 SENSOR_ATTR(in6_input, S_IRUGO, show_in, NULL, 6), 209 SENSOR_ATTR(in7_input, S_IRUGO, show_in, NULL, 7), 210 SENSOR_ATTR(in8_input, S_IRUGO, show_in, NULL, 8), 211 SENSOR_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0), 212 SENSOR_ATTR(temp1_max, S_IRUGO|S_IWUSR, show_temp_max, 213 store_temp_max, 0), 214 SENSOR_ATTR(temp1_max_hyst, S_IRUGO|S_IWUSR, show_temp_max_hyst, 215 store_temp_max_hyst, 0), 216 SENSOR_ATTR(temp1_crit, S_IRUGO|S_IWUSR, show_temp_crit, 217 store_temp_crit, 0), 218 SENSOR_ATTR(temp1_crit_hyst, S_IRUGO, show_temp_crit_hyst, NULL, 0), 219 SENSOR_ATTR(temp1_type, S_IRUGO, show_temp_type, NULL, 0), 220 SENSOR_ATTR(temp1_beep, S_IRUGO|S_IWUSR, show_temp_beep, 221 store_temp_beep, 0), 222 SENSOR_ATTR(temp1_alarm, S_IRUGO, show_temp_alarm, NULL, 0), 223 SENSOR_ATTR(temp1_fault, S_IRUGO, show_temp_fault, NULL, 0), 224 SENSOR_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1), 225 SENSOR_ATTR(temp2_max, S_IRUGO|S_IWUSR, show_temp_max, 226 store_temp_max, 1), 227 SENSOR_ATTR(temp2_max_hyst, S_IRUGO|S_IWUSR, show_temp_max_hyst, 228 store_temp_max_hyst, 1), 229 SENSOR_ATTR(temp2_crit, S_IRUGO|S_IWUSR, show_temp_crit, 230 store_temp_crit, 1), 231 SENSOR_ATTR(temp2_crit_hyst, S_IRUGO, show_temp_crit_hyst, NULL, 1), 232 SENSOR_ATTR(temp2_type, S_IRUGO, show_temp_type, NULL, 1), 233 SENSOR_ATTR(temp2_beep, S_IRUGO|S_IWUSR, show_temp_beep, 234 store_temp_beep, 1), 235 SENSOR_ATTR(temp2_alarm, S_IRUGO, show_temp_alarm, NULL, 1), 236 SENSOR_ATTR(temp2_fault, S_IRUGO, show_temp_fault, NULL, 1), 237 SENSOR_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2), 238 SENSOR_ATTR(temp3_max, S_IRUGO|S_IWUSR, show_temp_max, 239 store_temp_max, 2), 240 SENSOR_ATTR(temp3_max_hyst, S_IRUGO|S_IWUSR, show_temp_max_hyst, 241 store_temp_max_hyst, 2), 242 SENSOR_ATTR(temp3_crit, S_IRUGO|S_IWUSR, show_temp_crit, 243 store_temp_crit, 2), 244 SENSOR_ATTR(temp3_crit_hyst, S_IRUGO, show_temp_crit_hyst, NULL, 2), 245 SENSOR_ATTR(temp3_type, S_IRUGO, show_temp_type, NULL, 2), 246 SENSOR_ATTR(temp3_beep, S_IRUGO|S_IWUSR, show_temp_beep, 247 store_temp_beep, 2), 248 SENSOR_ATTR(temp3_alarm, S_IRUGO, show_temp_alarm, NULL, 2), 249 SENSOR_ATTR(temp3_fault, S_IRUGO, show_temp_fault, NULL, 2) 250 }; 251 252 static struct sensor_device_attribute f71882fg_fan_attr[] = 253 { 254 SENSOR_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0), 255 SENSOR_ATTR(fan1_beep, S_IRUGO|S_IWUSR, show_fan_beep, 256 store_fan_beep, 0), 257 SENSOR_ATTR(fan1_alarm, S_IRUGO, show_fan_alarm, NULL, 0), 258 SENSOR_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1), 259 SENSOR_ATTR(fan2_beep, S_IRUGO|S_IWUSR, show_fan_beep, 260 store_fan_beep, 1), 261 SENSOR_ATTR(fan2_alarm, S_IRUGO, show_fan_alarm, NULL, 1), 262 SENSOR_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2), 263 SENSOR_ATTR(fan3_beep, S_IRUGO|S_IWUSR, show_fan_beep, 264 store_fan_beep, 2), 265 SENSOR_ATTR(fan3_alarm, S_IRUGO, show_fan_alarm, NULL, 2), 266 SENSOR_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3), 267 SENSOR_ATTR(fan4_beep, S_IRUGO|S_IWUSR, show_fan_beep, 268 store_fan_beep, 3), 269 SENSOR_ATTR(fan4_alarm, S_IRUGO, show_fan_alarm, NULL, 3) 270 }; 271 272 273 /* Super I/O functions */ 274 static inline int superio_inb(int base, int reg) 275 { 276 outb(reg, base); 277 return inb(base + 1); 278 } 279 280 static int superio_inw(int base, int reg) 281 { 282 int val; 283 outb(reg++, base); 284 val = inb(base + 1) << 8; 285 outb(reg, base); 286 val |= inb(base + 1); 287 return val; 288 } 289 290 static inline void superio_enter(int base) 291 { 292 /* according to the datasheet the key must be send twice! */ 293 outb( SIO_UNLOCK_KEY, base); 294 outb( SIO_UNLOCK_KEY, base); 295 } 296 297 static inline void superio_select( int base, int ld) 298 { 299 outb(SIO_REG_LDSEL, base); 300 outb(ld, base + 1); 301 } 302 303 static inline void superio_exit(int base) 304 { 305 outb(SIO_LOCK_KEY, base); 306 } 307 308 static inline u16 fan_from_reg(u16 reg) 309 { 310 return reg ? (1500000 / reg) : 0; 311 } 312 313 static u8 f71882fg_read8(struct f71882fg_data *data, u8 reg) 314 { 315 u8 val; 316 317 outb(reg, data->addr + ADDR_REG_OFFSET); 318 val = inb(data->addr + DATA_REG_OFFSET); 319 320 return val; 321 } 322 323 static u16 f71882fg_read16(struct f71882fg_data *data, u8 reg) 324 { 325 u16 val; 326 327 outb(reg++, data->addr + ADDR_REG_OFFSET); 328 val = inb(data->addr + DATA_REG_OFFSET) << 8; 329 outb(reg, data->addr + ADDR_REG_OFFSET); 330 val |= inb(data->addr + DATA_REG_OFFSET); 331 332 return val; 333 } 334 335 static void f71882fg_write8(struct f71882fg_data *data, u8 reg, u8 val) 336 { 337 outb(reg, data->addr + ADDR_REG_OFFSET); 338 outb(val, data->addr + DATA_REG_OFFSET); 339 } 340 341 static struct f71882fg_data *f71882fg_update_device(struct device * dev) 342 { 343 struct f71882fg_data *data = dev_get_drvdata(dev); 344 int nr, reg, reg2; 345 346 mutex_lock(&data->update_lock); 347 348 /* Update once every 60 seconds */ 349 if ( time_after(jiffies, data->last_limits + 60 * HZ ) || 350 !data->valid) { 351 data->in1_max = f71882fg_read8(data, F71882FG_REG_IN1_HIGH); 352 data->in_beep = f71882fg_read8(data, F71882FG_REG_IN_BEEP); 353 354 /* Get High & boundary temps*/ 355 for (nr = 0; nr < 3; nr++) { 356 data->temp_ovt[nr] = f71882fg_read8(data, 357 F71882FG_REG_TEMP_OVT(nr)); 358 data->temp_high[nr] = f71882fg_read8(data, 359 F71882FG_REG_TEMP_HIGH(nr)); 360 } 361 362 /* Have to hardcode hyst*/ 363 data->temp_hyst[0] = f71882fg_read8(data, 364 F71882FG_REG_TEMP_HYST1) >> 4; 365 /* Hyst temps 2 & 3 stored in same register */ 366 reg = f71882fg_read8(data, F71882FG_REG_TEMP_HYST23); 367 data->temp_hyst[1] = reg & 0x0F; 368 data->temp_hyst[2] = reg >> 4; 369 370 /* Have to hardcode type, because temp1 is special */ 371 reg = f71882fg_read8(data, F71882FG_REG_TEMP_TYPE); 372 reg2 = f71882fg_read8(data, F71882FG_REG_PECI); 373 if ((reg2 & 0x03) == 0x01) 374 data->temp_type[0] = 6 /* PECI */; 375 else if ((reg2 & 0x03) == 0x02) 376 data->temp_type[0] = 5 /* AMDSI */; 377 else 378 data->temp_type[0] = (reg & 0x02) ? 2 : 4; 379 380 data->temp_type[1] = (reg & 0x04) ? 2 : 4; 381 data->temp_type[2] = (reg & 0x08) ? 2 : 4; 382 383 data->temp_beep = f71882fg_read8(data, F71882FG_REG_TEMP_BEEP); 384 385 data->fan_beep = f71882fg_read8(data, F71882FG_REG_FAN_BEEP); 386 387 data->last_limits = jiffies; 388 } 389 390 /* Update every second */ 391 if (time_after(jiffies, data->last_updated + HZ) || !data->valid) { 392 data->temp_status = f71882fg_read8(data, 393 F71882FG_REG_TEMP_STATUS); 394 data->temp_diode_open = f71882fg_read8(data, 395 F71882FG_REG_TEMP_DIODE_OPEN); 396 for (nr = 0; nr < 3; nr++) 397 data->temp[nr] = f71882fg_read8(data, 398 F71882FG_REG_TEMP(nr)); 399 400 data->fan_status = f71882fg_read8(data, 401 F71882FG_REG_FAN_STATUS); 402 for (nr = 0; nr < 4; nr++) 403 data->fan[nr] = f71882fg_read16(data, 404 F71882FG_REG_FAN(nr)); 405 406 data->in_status = f71882fg_read8(data, 407 F71882FG_REG_IN_STATUS); 408 for (nr = 0; nr < 9; nr++) 409 data->in[nr] = f71882fg_read8(data, 410 F71882FG_REG_IN(nr)); 411 412 data->last_updated = jiffies; 413 data->valid = 1; 414 } 415 416 mutex_unlock(&data->update_lock); 417 418 return data; 419 } 420 421 /* Sysfs Interface */ 422 static ssize_t show_fan(struct device *dev, struct device_attribute *devattr, 423 char *buf) 424 { 425 struct f71882fg_data *data = f71882fg_update_device(dev); 426 int nr = to_sensor_dev_attr(devattr)->index; 427 int speed = fan_from_reg(data->fan[nr]); 428 429 if (speed == FAN_MIN_DETECT) 430 speed = 0; 431 432 return sprintf(buf, "%d\n", speed); 433 } 434 435 static ssize_t show_fan_beep(struct device *dev, struct device_attribute 436 *devattr, char *buf) 437 { 438 struct f71882fg_data *data = f71882fg_update_device(dev); 439 int nr = to_sensor_dev_attr(devattr)->index; 440 441 if (data->fan_beep & (1 << nr)) 442 return sprintf(buf, "1\n"); 443 else 444 return sprintf(buf, "0\n"); 445 } 446 447 static ssize_t store_fan_beep(struct device *dev, struct device_attribute 448 *devattr, const char *buf, size_t count) 449 { 450 struct f71882fg_data *data = dev_get_drvdata(dev); 451 int nr = to_sensor_dev_attr(devattr)->index; 452 int val = simple_strtoul(buf, NULL, 10); 453 454 mutex_lock(&data->update_lock); 455 if (val) 456 data->fan_beep |= 1 << nr; 457 else 458 data->fan_beep &= ~(1 << nr); 459 460 f71882fg_write8(data, F71882FG_REG_FAN_BEEP, data->fan_beep); 461 mutex_unlock(&data->update_lock); 462 463 return count; 464 } 465 466 static ssize_t show_fan_alarm(struct device *dev, struct device_attribute 467 *devattr, char *buf) 468 { 469 struct f71882fg_data *data = f71882fg_update_device(dev); 470 int nr = to_sensor_dev_attr(devattr)->index; 471 472 if (data->fan_status & (1 << nr)) 473 return sprintf(buf, "1\n"); 474 else 475 return sprintf(buf, "0\n"); 476 } 477 478 static ssize_t show_in(struct device *dev, struct device_attribute *devattr, 479 char *buf) 480 { 481 struct f71882fg_data *data = f71882fg_update_device(dev); 482 int nr = to_sensor_dev_attr(devattr)->index; 483 484 return sprintf(buf, "%d\n", data->in[nr] * 8); 485 } 486 487 static ssize_t show_in_max(struct device *dev, struct device_attribute 488 *devattr, char *buf) 489 { 490 struct f71882fg_data *data = f71882fg_update_device(dev); 491 492 return sprintf(buf, "%d\n", data->in1_max * 8); 493 } 494 495 static ssize_t store_in_max(struct device *dev, struct device_attribute 496 *devattr, const char *buf, size_t count) 497 { 498 struct f71882fg_data *data = dev_get_drvdata(dev); 499 int val = simple_strtoul(buf, NULL, 10) / 8; 500 501 if (val > 255) 502 val = 255; 503 504 mutex_lock(&data->update_lock); 505 f71882fg_write8(data, F71882FG_REG_IN1_HIGH, val); 506 data->in1_max = val; 507 mutex_unlock(&data->update_lock); 508 509 return count; 510 } 511 512 static ssize_t show_in_beep(struct device *dev, struct device_attribute 513 *devattr, char *buf) 514 { 515 struct f71882fg_data *data = f71882fg_update_device(dev); 516 int nr = to_sensor_dev_attr(devattr)->index; 517 518 if (data->in_beep & (1 << nr)) 519 return sprintf(buf, "1\n"); 520 else 521 return sprintf(buf, "0\n"); 522 } 523 524 static ssize_t store_in_beep(struct device *dev, struct device_attribute 525 *devattr, const char *buf, size_t count) 526 { 527 struct f71882fg_data *data = dev_get_drvdata(dev); 528 int nr = to_sensor_dev_attr(devattr)->index; 529 int val = simple_strtoul(buf, NULL, 10); 530 531 mutex_lock(&data->update_lock); 532 if (val) 533 data->in_beep |= 1 << nr; 534 else 535 data->in_beep &= ~(1 << nr); 536 537 f71882fg_write8(data, F71882FG_REG_IN_BEEP, data->in_beep); 538 mutex_unlock(&data->update_lock); 539 540 return count; 541 } 542 543 static ssize_t show_in_alarm(struct device *dev, struct device_attribute 544 *devattr, char *buf) 545 { 546 struct f71882fg_data *data = f71882fg_update_device(dev); 547 int nr = to_sensor_dev_attr(devattr)->index; 548 549 if (data->in_status & (1 << nr)) 550 return sprintf(buf, "1\n"); 551 else 552 return sprintf(buf, "0\n"); 553 } 554 555 static ssize_t show_temp(struct device *dev, struct device_attribute *devattr, 556 char *buf) 557 { 558 struct f71882fg_data *data = f71882fg_update_device(dev); 559 int nr = to_sensor_dev_attr(devattr)->index; 560 561 return sprintf(buf, "%d\n", data->temp[nr] * 1000); 562 } 563 564 static ssize_t show_temp_max(struct device *dev, struct device_attribute 565 *devattr, char *buf) 566 { 567 struct f71882fg_data *data = f71882fg_update_device(dev); 568 int nr = to_sensor_dev_attr(devattr)->index; 569 570 return sprintf(buf, "%d\n", data->temp_high[nr] * 1000); 571 } 572 573 static ssize_t store_temp_max(struct device *dev, struct device_attribute 574 *devattr, const char *buf, size_t count) 575 { 576 struct f71882fg_data *data = dev_get_drvdata(dev); 577 int nr = to_sensor_dev_attr(devattr)->index; 578 int val = simple_strtoul(buf, NULL, 10) / 1000; 579 580 if (val > 255) 581 val = 255; 582 583 mutex_lock(&data->update_lock); 584 f71882fg_write8(data, F71882FG_REG_TEMP_HIGH(nr), val); 585 data->temp_high[nr] = val; 586 mutex_unlock(&data->update_lock); 587 588 return count; 589 } 590 591 static ssize_t show_temp_max_hyst(struct device *dev, struct device_attribute 592 *devattr, char *buf) 593 { 594 struct f71882fg_data *data = f71882fg_update_device(dev); 595 int nr = to_sensor_dev_attr(devattr)->index; 596 597 return sprintf(buf, "%d\n", 598 (data->temp_high[nr] - data->temp_hyst[nr]) * 1000); 599 } 600 601 static ssize_t store_temp_max_hyst(struct device *dev, struct device_attribute 602 *devattr, const char *buf, size_t count) 603 { 604 struct f71882fg_data *data = dev_get_drvdata(dev); 605 int nr = to_sensor_dev_attr(devattr)->index; 606 int val = simple_strtoul(buf, NULL, 10) / 1000; 607 ssize_t ret = count; 608 609 mutex_lock(&data->update_lock); 610 611 /* convert abs to relative and check */ 612 val = data->temp_high[nr] - val; 613 if (val < 0 || val > 15) { 614 ret = -EINVAL; 615 goto store_temp_max_hyst_exit; 616 } 617 618 data->temp_hyst[nr] = val; 619 620 /* convert value to register contents */ 621 switch (nr) { 622 case 0: 623 val = val << 4; 624 break; 625 case 1: 626 val = val | (data->temp_hyst[2] << 4); 627 break; 628 case 2: 629 val = data->temp_hyst[1] | (val << 4); 630 break; 631 } 632 633 f71882fg_write8(data, nr ? F71882FG_REG_TEMP_HYST23 : 634 F71882FG_REG_TEMP_HYST1, val); 635 636 store_temp_max_hyst_exit: 637 mutex_unlock(&data->update_lock); 638 return ret; 639 } 640 641 static ssize_t show_temp_crit(struct device *dev, struct device_attribute 642 *devattr, char *buf) 643 { 644 struct f71882fg_data *data = f71882fg_update_device(dev); 645 int nr = to_sensor_dev_attr(devattr)->index; 646 647 return sprintf(buf, "%d\n", data->temp_ovt[nr] * 1000); 648 } 649 650 static ssize_t store_temp_crit(struct device *dev, struct device_attribute 651 *devattr, const char *buf, size_t count) 652 { 653 struct f71882fg_data *data = dev_get_drvdata(dev); 654 int nr = to_sensor_dev_attr(devattr)->index; 655 int val = simple_strtoul(buf, NULL, 10) / 1000; 656 657 if (val > 255) 658 val = 255; 659 660 mutex_lock(&data->update_lock); 661 f71882fg_write8(data, F71882FG_REG_TEMP_OVT(nr), val); 662 data->temp_ovt[nr] = val; 663 mutex_unlock(&data->update_lock); 664 665 return count; 666 } 667 668 static ssize_t show_temp_crit_hyst(struct device *dev, struct device_attribute 669 *devattr, char *buf) 670 { 671 struct f71882fg_data *data = f71882fg_update_device(dev); 672 int nr = to_sensor_dev_attr(devattr)->index; 673 674 return sprintf(buf, "%d\n", 675 (data->temp_ovt[nr] - data->temp_hyst[nr]) * 1000); 676 } 677 678 static ssize_t show_temp_type(struct device *dev, struct device_attribute 679 *devattr, char *buf) 680 { 681 struct f71882fg_data *data = f71882fg_update_device(dev); 682 int nr = to_sensor_dev_attr(devattr)->index; 683 684 return sprintf(buf, "%d\n", data->temp_type[nr]); 685 } 686 687 static ssize_t show_temp_beep(struct device *dev, struct device_attribute 688 *devattr, char *buf) 689 { 690 struct f71882fg_data *data = f71882fg_update_device(dev); 691 int nr = to_sensor_dev_attr(devattr)->index; 692 693 if (data->temp_beep & (1 << (nr + 1))) 694 return sprintf(buf, "1\n"); 695 else 696 return sprintf(buf, "0\n"); 697 } 698 699 static ssize_t store_temp_beep(struct device *dev, struct device_attribute 700 *devattr, const char *buf, size_t count) 701 { 702 struct f71882fg_data *data = dev_get_drvdata(dev); 703 int nr = to_sensor_dev_attr(devattr)->index; 704 int val = simple_strtoul(buf, NULL, 10); 705 706 mutex_lock(&data->update_lock); 707 if (val) 708 data->temp_beep |= 1 << (nr + 1); 709 else 710 data->temp_beep &= ~(1 << (nr + 1)); 711 712 f71882fg_write8(data, F71882FG_REG_TEMP_BEEP, data->temp_beep); 713 mutex_unlock(&data->update_lock); 714 715 return count; 716 } 717 718 static ssize_t show_temp_alarm(struct device *dev, struct device_attribute 719 *devattr, char *buf) 720 { 721 struct f71882fg_data *data = f71882fg_update_device(dev); 722 int nr = to_sensor_dev_attr(devattr)->index; 723 724 if (data->temp_status & (1 << (nr + 1))) 725 return sprintf(buf, "1\n"); 726 else 727 return sprintf(buf, "0\n"); 728 } 729 730 static ssize_t show_temp_fault(struct device *dev, struct device_attribute 731 *devattr, char *buf) 732 { 733 struct f71882fg_data *data = f71882fg_update_device(dev); 734 int nr = to_sensor_dev_attr(devattr)->index; 735 736 if (data->temp_diode_open & (1 << (nr + 1))) 737 return sprintf(buf, "1\n"); 738 else 739 return sprintf(buf, "0\n"); 740 } 741 742 static ssize_t show_name(struct device *dev, struct device_attribute *devattr, 743 char *buf) 744 { 745 return sprintf(buf, DRVNAME "\n"); 746 } 747 748 749 static int __devinit f71882fg_probe(struct platform_device * pdev) 750 { 751 struct f71882fg_data *data; 752 int err, i; 753 u8 start_reg; 754 755 if (!(data = kzalloc(sizeof(struct f71882fg_data), GFP_KERNEL))) 756 return -ENOMEM; 757 758 data->addr = platform_get_resource(pdev, IORESOURCE_IO, 0)->start; 759 mutex_init(&data->update_lock); 760 platform_set_drvdata(pdev, data); 761 762 /* Register sysfs interface files */ 763 for (i = 0; i < ARRAY_SIZE(f71882fg_dev_attr); i++) { 764 err = device_create_file(&pdev->dev, &f71882fg_dev_attr[i]); 765 if (err) 766 goto exit_unregister_sysfs; 767 } 768 769 start_reg = f71882fg_read8(data, F71882FG_REG_START); 770 if (start_reg & 0x01) { 771 for (i = 0; i < ARRAY_SIZE(f71882fg_in_temp_attr); i++) { 772 err = device_create_file(&pdev->dev, 773 &f71882fg_in_temp_attr[i].dev_attr); 774 if (err) 775 goto exit_unregister_sysfs; 776 } 777 } 778 779 if (start_reg & 0x02) { 780 for (i = 0; i < ARRAY_SIZE(f71882fg_fan_attr); i++) { 781 err = device_create_file(&pdev->dev, 782 &f71882fg_fan_attr[i].dev_attr); 783 if (err) 784 goto exit_unregister_sysfs; 785 } 786 } 787 788 data->hwmon_dev = hwmon_device_register(&pdev->dev); 789 if (IS_ERR(data->hwmon_dev)) { 790 err = PTR_ERR(data->hwmon_dev); 791 goto exit_unregister_sysfs; 792 } 793 794 return 0; 795 796 exit_unregister_sysfs: 797 for (i = 0; i < ARRAY_SIZE(f71882fg_dev_attr); i++) 798 device_remove_file(&pdev->dev, &f71882fg_dev_attr[i]); 799 800 for (i = 0; i < ARRAY_SIZE(f71882fg_in_temp_attr); i++) 801 device_remove_file(&pdev->dev, 802 &f71882fg_in_temp_attr[i].dev_attr); 803 804 for (i = 0; i < ARRAY_SIZE(f71882fg_fan_attr); i++) 805 device_remove_file(&pdev->dev, &f71882fg_fan_attr[i].dev_attr); 806 807 kfree(data); 808 809 return err; 810 } 811 812 static int __devexit f71882fg_remove(struct platform_device *pdev) 813 { 814 int i; 815 struct f71882fg_data *data = platform_get_drvdata(pdev); 816 817 platform_set_drvdata(pdev, NULL); 818 hwmon_device_unregister(data->hwmon_dev); 819 820 for (i = 0; i < ARRAY_SIZE(f71882fg_dev_attr); i++) 821 device_remove_file(&pdev->dev, &f71882fg_dev_attr[i]); 822 823 for (i = 0; i < ARRAY_SIZE(f71882fg_in_temp_attr); i++) 824 device_remove_file(&pdev->dev, 825 &f71882fg_in_temp_attr[i].dev_attr); 826 827 for (i = 0; i < ARRAY_SIZE(f71882fg_fan_attr); i++) 828 device_remove_file(&pdev->dev, &f71882fg_fan_attr[i].dev_attr); 829 830 kfree(data); 831 832 return 0; 833 } 834 835 static int __init f71882fg_find(int sioaddr, unsigned short *address) 836 { 837 int err = -ENODEV; 838 u16 devid; 839 u8 start_reg; 840 struct f71882fg_data data; 841 842 superio_enter(sioaddr); 843 844 devid = superio_inw(sioaddr, SIO_REG_MANID); 845 if (devid != SIO_FINTEK_ID) { 846 printk(KERN_INFO DRVNAME ": Not a Fintek device\n"); 847 goto exit; 848 } 849 850 devid = force_id ? force_id : superio_inw(sioaddr, SIO_REG_DEVID); 851 if (devid != SIO_F71882_ID) { 852 printk(KERN_INFO DRVNAME ": Unsupported Fintek device\n"); 853 goto exit; 854 } 855 856 superio_select(sioaddr, SIO_F71882FG_LD_HWM); 857 if (!(superio_inb(sioaddr, SIO_REG_ENABLE) & 0x01)) { 858 printk(KERN_WARNING DRVNAME ": Device not activated\n"); 859 goto exit; 860 } 861 862 *address = superio_inw(sioaddr, SIO_REG_ADDR); 863 if (*address == 0) 864 { 865 printk(KERN_WARNING DRVNAME ": Base address not set\n"); 866 goto exit; 867 } 868 *address &= ~(REGION_LENGTH - 1); /* Ignore 3 LSB */ 869 870 data.addr = *address; 871 start_reg = f71882fg_read8(&data, F71882FG_REG_START); 872 if (!(start_reg & 0x03)) { 873 printk(KERN_WARNING DRVNAME 874 ": Hardware monitoring not activated\n"); 875 goto exit; 876 } 877 878 err = 0; 879 printk(KERN_INFO DRVNAME ": Found F71882FG chip at %#x, revision %d\n", 880 (unsigned int)*address, 881 (int)superio_inb(sioaddr, SIO_REG_DEVREV)); 882 exit: 883 superio_exit(sioaddr); 884 return err; 885 } 886 887 static int __init f71882fg_device_add(unsigned short address) 888 { 889 struct resource res = { 890 .start = address, 891 .end = address + REGION_LENGTH - 1, 892 .flags = IORESOURCE_IO, 893 }; 894 int err; 895 896 f71882fg_pdev = platform_device_alloc(DRVNAME, address); 897 if (!f71882fg_pdev) 898 return -ENOMEM; 899 900 res.name = f71882fg_pdev->name; 901 err = platform_device_add_resources(f71882fg_pdev, &res, 1); 902 if (err) { 903 printk(KERN_ERR DRVNAME ": Device resource addition failed\n"); 904 goto exit_device_put; 905 } 906 907 err = platform_device_add(f71882fg_pdev); 908 if (err) { 909 printk(KERN_ERR DRVNAME ": Device addition failed\n"); 910 goto exit_device_put; 911 } 912 913 return 0; 914 915 exit_device_put: 916 platform_device_put(f71882fg_pdev); 917 918 return err; 919 } 920 921 static int __init f71882fg_init(void) 922 { 923 int err = -ENODEV; 924 unsigned short address; 925 926 if (f71882fg_find(0x2e, &address) && f71882fg_find(0x4e, &address)) 927 goto exit; 928 929 if ((err = platform_driver_register(&f71882fg_driver))) 930 goto exit; 931 932 if ((err = f71882fg_device_add(address))) 933 goto exit_driver; 934 935 return 0; 936 937 exit_driver: 938 platform_driver_unregister(&f71882fg_driver); 939 exit: 940 return err; 941 } 942 943 static void __exit f71882fg_exit(void) 944 { 945 platform_device_unregister(f71882fg_pdev); 946 platform_driver_unregister(&f71882fg_driver); 947 } 948 949 MODULE_DESCRIPTION("F71882FG Hardware Monitoring Driver"); 950 MODULE_AUTHOR("Hans Edgington (hans@edgington.nl)"); 951 MODULE_LICENSE("GPL"); 952 953 module_init(f71882fg_init); 954 module_exit(f71882fg_exit); 955