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UBI: limit amount of reserved eraseblocks for bad PEB handling
[linux/fpc-iii.git] / drivers / hwmon / w83792d.c
blob0ba5a2bd562e19c725e3daa5738b9522c345b50e
1 /*
2 * w83792d.c - Part of lm_sensors, Linux kernel modules for hardware
3 * monitoring
4 * Copyright (C) 2004, 2005 Winbond Electronics Corp.
5 * Chunhao Huang <DZShen@Winbond.com.tw>,
6 * Rudolf Marek <r.marek@assembler.cz>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 *
22 * Note:
23 * 1. This driver is only for 2.6 kernel, 2.4 kernel need a different driver.
24 * 2. This driver is only for Winbond W83792D C version device, there
25 * are also some motherboards with B version W83792D device. The
26 * calculation method to in6-in7(measured value, limits) is a little
27 * different between C and B version. C or B version can be identified
28 * by CR[0x49h].
29 */
30
31 /*
32 * Supports following chips:
33 *
34 * Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA
35 * w83792d 9 7 7 3 0x7a 0x5ca3 yes no
36 */
37
38 #include <linux/module.h>
39 #include <linux/init.h>
40 #include <linux/slab.h>
41 #include <linux/i2c.h>
42 #include <linux/hwmon.h>
43 #include <linux/hwmon-sysfs.h>
44 #include <linux/err.h>
45 #include <linux/mutex.h>
46 #include <linux/sysfs.h>
47
48 /* Addresses to scan */
49 static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f,
50 I2C_CLIENT_END };
51
52 /* Insmod parameters */
53
54 static unsigned short force_subclients[4];
55 module_param_array(force_subclients, short, NULL, 0);
56 MODULE_PARM_DESC(force_subclients, "List of subclient addresses: "
57 "{bus, clientaddr, subclientaddr1, subclientaddr2}");
58
59 static bool init;
60 module_param(init, bool, 0);
61 MODULE_PARM_DESC(init, "Set to one to force chip initialization");
62
63 /* The W83792D registers */
64 static const u8 W83792D_REG_IN[9] = {
65 0x20, /* Vcore A in DataSheet */
66 0x21, /* Vcore B in DataSheet */
67 0x22, /* VIN0 in DataSheet */
68 0x23, /* VIN1 in DataSheet */
69 0x24, /* VIN2 in DataSheet */
70 0x25, /* VIN3 in DataSheet */
71 0x26, /* 5VCC in DataSheet */
72 0xB0, /* 5VSB in DataSheet */
73 0xB1 /* VBAT in DataSheet */
74 };
75 #define W83792D_REG_LOW_BITS1 0x3E /* Low Bits I in DataSheet */
76 #define W83792D_REG_LOW_BITS2 0x3F /* Low Bits II in DataSheet */
77 static const u8 W83792D_REG_IN_MAX[9] = {
78 0x2B, /* Vcore A High Limit in DataSheet */
79 0x2D, /* Vcore B High Limit in DataSheet */
80 0x2F, /* VIN0 High Limit in DataSheet */
81 0x31, /* VIN1 High Limit in DataSheet */
82 0x33, /* VIN2 High Limit in DataSheet */
83 0x35, /* VIN3 High Limit in DataSheet */
84 0x37, /* 5VCC High Limit in DataSheet */
85 0xB4, /* 5VSB High Limit in DataSheet */
86 0xB6 /* VBAT High Limit in DataSheet */
87 };
88 static const u8 W83792D_REG_IN_MIN[9] = {
89 0x2C, /* Vcore A Low Limit in DataSheet */
90 0x2E, /* Vcore B Low Limit in DataSheet */
91 0x30, /* VIN0 Low Limit in DataSheet */
92 0x32, /* VIN1 Low Limit in DataSheet */
93 0x34, /* VIN2 Low Limit in DataSheet */
94 0x36, /* VIN3 Low Limit in DataSheet */
95 0x38, /* 5VCC Low Limit in DataSheet */
96 0xB5, /* 5VSB Low Limit in DataSheet */
97 0xB7 /* VBAT Low Limit in DataSheet */
98 };
99 static const u8 W83792D_REG_FAN[7] = {
100 0x28, /* FAN 1 Count in DataSheet */
101 0x29, /* FAN 2 Count in DataSheet */
102 0x2A, /* FAN 3 Count in DataSheet */
103 0xB8, /* FAN 4 Count in DataSheet */
104 0xB9, /* FAN 5 Count in DataSheet */
105 0xBA, /* FAN 6 Count in DataSheet */
106 0xBE /* FAN 7 Count in DataSheet */
107 };
108 static const u8 W83792D_REG_FAN_MIN[7] = {
109 0x3B, /* FAN 1 Count Low Limit in DataSheet */
110 0x3C, /* FAN 2 Count Low Limit in DataSheet */
111 0x3D, /* FAN 3 Count Low Limit in DataSheet */
112 0xBB, /* FAN 4 Count Low Limit in DataSheet */
113 0xBC, /* FAN 5 Count Low Limit in DataSheet */
114 0xBD, /* FAN 6 Count Low Limit in DataSheet */
115 0xBF /* FAN 7 Count Low Limit in DataSheet */
116 };
117 #define W83792D_REG_FAN_CFG 0x84 /* FAN Configuration in DataSheet */
118 static const u8 W83792D_REG_FAN_DIV[4] = {
119 0x47, /* contains FAN2 and FAN1 Divisor */
120 0x5B, /* contains FAN4 and FAN3 Divisor */
121 0x5C, /* contains FAN6 and FAN5 Divisor */
122 0x9E /* contains FAN7 Divisor. */
123 };
124 static const u8 W83792D_REG_PWM[7] = {
125 0x81, /* FAN 1 Duty Cycle, be used to control */
126 0x83, /* FAN 2 Duty Cycle, be used to control */
127 0x94, /* FAN 3 Duty Cycle, be used to control */
128 0xA3, /* FAN 4 Duty Cycle, be used to control */
129 0xA4, /* FAN 5 Duty Cycle, be used to control */
130 0xA5, /* FAN 6 Duty Cycle, be used to control */
131 0xA6 /* FAN 7 Duty Cycle, be used to control */
132 };
133 #define W83792D_REG_BANK 0x4E
134 #define W83792D_REG_TEMP2_CONFIG 0xC2
135 #define W83792D_REG_TEMP3_CONFIG 0xCA
136
137 static const u8 W83792D_REG_TEMP1[3] = {
138 0x27, /* TEMP 1 in DataSheet */
139 0x39, /* TEMP 1 Over in DataSheet */
140 0x3A, /* TEMP 1 Hyst in DataSheet */
141 };
142
143 static const u8 W83792D_REG_TEMP_ADD[2][6] = {
144 { 0xC0, /* TEMP 2 in DataSheet */
145 0xC1, /* TEMP 2(0.5 deg) in DataSheet */
146 0xC5, /* TEMP 2 Over High part in DataSheet */
147 0xC6, /* TEMP 2 Over Low part in DataSheet */
148 0xC3, /* TEMP 2 Thyst High part in DataSheet */
149 0xC4 }, /* TEMP 2 Thyst Low part in DataSheet */
150 { 0xC8, /* TEMP 3 in DataSheet */
151 0xC9, /* TEMP 3(0.5 deg) in DataSheet */
152 0xCD, /* TEMP 3 Over High part in DataSheet */
153 0xCE, /* TEMP 3 Over Low part in DataSheet */
154 0xCB, /* TEMP 3 Thyst High part in DataSheet */
155 0xCC } /* TEMP 3 Thyst Low part in DataSheet */
156 };
157
158 static const u8 W83792D_REG_THERMAL[3] = {
159 0x85, /* SmartFanI: Fan1 target value */
160 0x86, /* SmartFanI: Fan2 target value */
161 0x96 /* SmartFanI: Fan3 target value */
162 };
163
164 static const u8 W83792D_REG_TOLERANCE[3] = {
165 0x87, /* (bit3-0)SmartFan Fan1 tolerance */
166 0x87, /* (bit7-4)SmartFan Fan2 tolerance */
167 0x97 /* (bit3-0)SmartFan Fan3 tolerance */
168 };
169
170 static const u8 W83792D_REG_POINTS[3][4] = {
171 { 0x85, /* SmartFanII: Fan1 temp point 1 */
172 0xE3, /* SmartFanII: Fan1 temp point 2 */
173 0xE4, /* SmartFanII: Fan1 temp point 3 */
174 0xE5 }, /* SmartFanII: Fan1 temp point 4 */
175 { 0x86, /* SmartFanII: Fan2 temp point 1 */
176 0xE6, /* SmartFanII: Fan2 temp point 2 */
177 0xE7, /* SmartFanII: Fan2 temp point 3 */
178 0xE8 }, /* SmartFanII: Fan2 temp point 4 */
179 { 0x96, /* SmartFanII: Fan3 temp point 1 */
180 0xE9, /* SmartFanII: Fan3 temp point 2 */
181 0xEA, /* SmartFanII: Fan3 temp point 3 */
182 0xEB } /* SmartFanII: Fan3 temp point 4 */
183 };
184
185 static const u8 W83792D_REG_LEVELS[3][4] = {
186 { 0x88, /* (bit3-0) SmartFanII: Fan1 Non-Stop */
187 0x88, /* (bit7-4) SmartFanII: Fan1 Level 1 */
188 0xE0, /* (bit7-4) SmartFanII: Fan1 Level 2 */
189 0xE0 }, /* (bit3-0) SmartFanII: Fan1 Level 3 */
190 { 0x89, /* (bit3-0) SmartFanII: Fan2 Non-Stop */
191 0x89, /* (bit7-4) SmartFanII: Fan2 Level 1 */
192 0xE1, /* (bit7-4) SmartFanII: Fan2 Level 2 */
193 0xE1 }, /* (bit3-0) SmartFanII: Fan2 Level 3 */
194 { 0x98, /* (bit3-0) SmartFanII: Fan3 Non-Stop */
195 0x98, /* (bit7-4) SmartFanII: Fan3 Level 1 */
196 0xE2, /* (bit7-4) SmartFanII: Fan3 Level 2 */
197 0xE2 } /* (bit3-0) SmartFanII: Fan3 Level 3 */
198 };
199
200 #define W83792D_REG_GPIO_EN 0x1A
201 #define W83792D_REG_CONFIG 0x40
202 #define W83792D_REG_VID_FANDIV 0x47
203 #define W83792D_REG_CHIPID 0x49
204 #define W83792D_REG_WCHIPID 0x58
205 #define W83792D_REG_CHIPMAN 0x4F
206 #define W83792D_REG_PIN 0x4B
207 #define W83792D_REG_I2C_SUBADDR 0x4A
208
209 #define W83792D_REG_ALARM1 0xA9 /* realtime status register1 */
210 #define W83792D_REG_ALARM2 0xAA /* realtime status register2 */
211 #define W83792D_REG_ALARM3 0xAB /* realtime status register3 */
212 #define W83792D_REG_CHASSIS 0x42 /* Bit 5: Case Open status bit */
213 #define W83792D_REG_CHASSIS_CLR 0x44 /* Bit 7: Case Open CLR_CHS/Reset bit */
214
215 /* control in0/in1 's limit modifiability */
216 #define W83792D_REG_VID_IN_B 0x17
217
218 #define W83792D_REG_VBAT 0x5D
219 #define W83792D_REG_I2C_ADDR 0x48
220
221 /*
222 * Conversions. Rounding and limit checking is only done on the TO_REG
223 * variants. Note that you should be a bit careful with which arguments
224 * these macros are called: arguments may be evaluated more than once.
225 * Fixing this is just not worth it.
226 */
227 #define IN_FROM_REG(nr, val) (((nr) <= 1) ? ((val) * 2) : \
228 ((((nr) == 6) || ((nr) == 7)) ? ((val) * 6) : ((val) * 4)))
229 #define IN_TO_REG(nr, val) (((nr) <= 1) ? ((val) / 2) : \
230 ((((nr) == 6) || ((nr) == 7)) ? ((val) / 6) : ((val) / 4)))
231
232 static inline u8
233 FAN_TO_REG(long rpm, int div)
234 {
235 if (rpm == 0)
236 return 255;
237 rpm = SENSORS_LIMIT(rpm, 1, 1000000);
238 return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 254);
239 }
240
241 #define FAN_FROM_REG(val, div) ((val) == 0 ? -1 : \
242 ((val) == 255 ? 0 : \
243 1350000 / ((val) * (div))))
244
245 /* for temp1 */
246 #define TEMP1_TO_REG(val) (SENSORS_LIMIT(((val) < 0 ? (val)+0x100*1000 \
247 : (val)) / 1000, 0, 0xff))
248 #define TEMP1_FROM_REG(val) (((val) & 0x80 ? (val)-0x100 : (val)) * 1000)
249 /* for temp2 and temp3, because they need additional resolution */
250 #define TEMP_ADD_FROM_REG(val1, val2) \
251 ((((val1) & 0x80 ? (val1)-0x100 \
252 : (val1)) * 1000) + ((val2 & 0x80) ? 500 : 0))
253 #define TEMP_ADD_TO_REG_HIGH(val) \
254 (SENSORS_LIMIT(((val) < 0 ? (val)+0x100*1000 \
255 : (val)) / 1000, 0, 0xff))
256 #define TEMP_ADD_TO_REG_LOW(val) ((val%1000) ? 0x80 : 0x00)
257
258 #define DIV_FROM_REG(val) (1 << (val))
259
260 static inline u8
261 DIV_TO_REG(long val)
262 {
263 int i;
264 val = SENSORS_LIMIT(val, 1, 128) >> 1;
265 for (i = 0; i < 7; i++) {
266 if (val == 0)
267 break;
268 val >>= 1;
269 }
270 return (u8)i;
271 }
272
273 struct w83792d_data {
274 struct device *hwmon_dev;
275
276 struct mutex update_lock;
277 char valid; /* !=0 if following fields are valid */
278 unsigned long last_updated; /* In jiffies */
279
280 /* array of 2 pointers to subclients */
281 struct i2c_client *lm75[2];
282
283 u8 in[9]; /* Register value */
284 u8 in_max[9]; /* Register value */
285 u8 in_min[9]; /* Register value */
286 u16 low_bits; /* Additional resolution to voltage in6-0 */
287 u8 fan[7]; /* Register value */
288 u8 fan_min[7]; /* Register value */
289 u8 temp1[3]; /* current, over, thyst */
290 u8 temp_add[2][6]; /* Register value */
291 u8 fan_div[7]; /* Register encoding, shifted right */
292 u8 pwm[7]; /*
293 * We only consider the first 3 set of pwm,
294 * although 792 chip has 7 set of pwm.
295 */
296 u8 pwmenable[3];
297 u32 alarms; /* realtime status register encoding,combined */
298 u8 chassis; /* Chassis status */
299 u8 chassis_clear; /* CLR_CHS, clear chassis intrusion detection */
300 u8 thermal_cruise[3]; /* Smart FanI: Fan1,2,3 target value */
301 u8 tolerance[3]; /* Fan1,2,3 tolerance(Smart Fan I/II) */
302 u8 sf2_points[3][4]; /* Smart FanII: Fan1,2,3 temperature points */
303 u8 sf2_levels[3][4]; /* Smart FanII: Fan1,2,3 duty cycle levels */
304 };
305
306 static int w83792d_probe(struct i2c_client *client,
307 const struct i2c_device_id *id);
308 static int w83792d_detect(struct i2c_client *client,
309 struct i2c_board_info *info);
310 static int w83792d_remove(struct i2c_client *client);
311 static struct w83792d_data *w83792d_update_device(struct device *dev);
312
313 #ifdef DEBUG
314 static void w83792d_print_debug(struct w83792d_data *data, struct device *dev);
315 #endif
316
317 static void w83792d_init_client(struct i2c_client *client);
318
319 static const struct i2c_device_id w83792d_id[] = {
320 { "w83792d", 0 },
321 { }
322 };
323 MODULE_DEVICE_TABLE(i2c, w83792d_id);
324
325 static struct i2c_driver w83792d_driver = {
326 .class = I2C_CLASS_HWMON,
327 .driver = {
328 .name = "w83792d",
329 },
330 .probe = w83792d_probe,
331 .remove = w83792d_remove,
332 .id_table = w83792d_id,
333 .detect = w83792d_detect,
334 .address_list = normal_i2c,
335 };
336
337 static inline long in_count_from_reg(int nr, struct w83792d_data *data)
338 {
339 /* in7 and in8 do not have low bits, but the formula still works */
340 return (data->in[nr] << 2) | ((data->low_bits >> (2 * nr)) & 0x03);
341 }
342
343 /*
344 * The SMBus locks itself. The Winbond W83792D chip has a bank register,
345 * but the driver only accesses registers in bank 0, so we don't have
346 * to switch banks and lock access between switches.
347 */
348 static inline int w83792d_read_value(struct i2c_client *client, u8 reg)
349 {
350 return i2c_smbus_read_byte_data(client, reg);
351 }
352
353 static inline int
354 w83792d_write_value(struct i2c_client *client, u8 reg, u8 value)
355 {
356 return i2c_smbus_write_byte_data(client, reg, value);
357 }
358
359 /* following are the sysfs callback functions */
360 static ssize_t show_in(struct device *dev, struct device_attribute *attr,
361 char *buf)
362 {
363 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
364 int nr = sensor_attr->index;
365 struct w83792d_data *data = w83792d_update_device(dev);
366 return sprintf(buf, "%ld\n",
367 IN_FROM_REG(nr, in_count_from_reg(nr, data)));
368 }
369
370 #define show_in_reg(reg) \
371 static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
372 char *buf) \
373 { \
374 struct sensor_device_attribute *sensor_attr \
375 = to_sensor_dev_attr(attr); \
376 int nr = sensor_attr->index; \
377 struct w83792d_data *data = w83792d_update_device(dev); \
378 return sprintf(buf, "%ld\n", \
379 (long)(IN_FROM_REG(nr, data->reg[nr]) * 4)); \
380 }
381
382 show_in_reg(in_min);
383 show_in_reg(in_max);
384
385 #define store_in_reg(REG, reg) \
386 static ssize_t store_in_##reg(struct device *dev, \
387 struct device_attribute *attr, \
388 const char *buf, size_t count) \
389 { \
390 struct sensor_device_attribute *sensor_attr \
391 = to_sensor_dev_attr(attr); \
392 int nr = sensor_attr->index; \
393 struct i2c_client *client = to_i2c_client(dev); \
394 struct w83792d_data *data = i2c_get_clientdata(client); \
395 unsigned long val; \
396 int err = kstrtoul(buf, 10, &val); \
397 if (err) \
398 return err; \
399 mutex_lock(&data->update_lock); \
400 data->in_##reg[nr] = SENSORS_LIMIT(IN_TO_REG(nr, val) / 4, 0, 255); \
401 w83792d_write_value(client, W83792D_REG_IN_##REG[nr], \
402 data->in_##reg[nr]); \
403 mutex_unlock(&data->update_lock); \
404 \
405 return count; \
406 }
407 store_in_reg(MIN, min);
408 store_in_reg(MAX, max);
409
410 #define show_fan_reg(reg) \
411 static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
412 char *buf) \
413 { \
414 struct sensor_device_attribute *sensor_attr \
415 = to_sensor_dev_attr(attr); \
416 int nr = sensor_attr->index - 1; \
417 struct w83792d_data *data = w83792d_update_device(dev); \
418 return sprintf(buf, "%d\n", \
419 FAN_FROM_REG(data->reg[nr], DIV_FROM_REG(data->fan_div[nr]))); \
420 }
421
422 show_fan_reg(fan);
423 show_fan_reg(fan_min);
424
425 static ssize_t
426 store_fan_min(struct device *dev, struct device_attribute *attr,
427 const char *buf, size_t count)
428 {
429 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
430 int nr = sensor_attr->index - 1;
431 struct i2c_client *client = to_i2c_client(dev);
432 struct w83792d_data *data = i2c_get_clientdata(client);
433 unsigned long val;
434 int err;
435
436 err = kstrtoul(buf, 10, &val);
437 if (err)
438 return err;
439
440 mutex_lock(&data->update_lock);
441 data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
442 w83792d_write_value(client, W83792D_REG_FAN_MIN[nr],
443 data->fan_min[nr]);
444 mutex_unlock(&data->update_lock);
445
446 return count;
447 }
448
449 static ssize_t
450 show_fan_div(struct device *dev, struct device_attribute *attr,
451 char *buf)
452 {
453 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
454 int nr = sensor_attr->index;
455 struct w83792d_data *data = w83792d_update_device(dev);
456 return sprintf(buf, "%u\n", DIV_FROM_REG(data->fan_div[nr - 1]));
457 }
458
459 /*
460 * Note: we save and restore the fan minimum here, because its value is
461 * determined in part by the fan divisor. This follows the principle of
462 * least surprise; the user doesn't expect the fan minimum to change just
463 * because the divisor changed.
464 */
465 static ssize_t
466 store_fan_div(struct device *dev, struct device_attribute *attr,
467 const char *buf, size_t count)
468 {
469 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
470 int nr = sensor_attr->index - 1;
471 struct i2c_client *client = to_i2c_client(dev);
472 struct w83792d_data *data = i2c_get_clientdata(client);
473 unsigned long min;
474 /*u8 reg;*/
475 u8 fan_div_reg = 0;
476 u8 tmp_fan_div;
477 unsigned long val;
478 int err;
479
480 err = kstrtoul(buf, 10, &val);
481 if (err)
482 return err;
483
484 /* Save fan_min */
485 mutex_lock(&data->update_lock);
486 min = FAN_FROM_REG(data->fan_min[nr],
487 DIV_FROM_REG(data->fan_div[nr]));
488
489 data->fan_div[nr] = DIV_TO_REG(val);
490
491 fan_div_reg = w83792d_read_value(client, W83792D_REG_FAN_DIV[nr >> 1]);
492 fan_div_reg &= (nr & 0x01) ? 0x8f : 0xf8;
493 tmp_fan_div = (nr & 0x01) ? (((data->fan_div[nr]) << 4) & 0x70)
494 : ((data->fan_div[nr]) & 0x07);
495 w83792d_write_value(client, W83792D_REG_FAN_DIV[nr >> 1],
496 fan_div_reg | tmp_fan_div);
497
498 /* Restore fan_min */
499 data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
500 w83792d_write_value(client, W83792D_REG_FAN_MIN[nr], data->fan_min[nr]);
501 mutex_unlock(&data->update_lock);
502
503 return count;
504 }
505
506 /* read/write the temperature1, includes measured value and limits */
507
508 static ssize_t show_temp1(struct device *dev, struct device_attribute *attr,
509 char *buf)
510 {
511 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
512 int nr = sensor_attr->index;
513 struct w83792d_data *data = w83792d_update_device(dev);
514 return sprintf(buf, "%d\n", TEMP1_FROM_REG(data->temp1[nr]));
515 }
516
517 static ssize_t store_temp1(struct device *dev, struct device_attribute *attr,
518 const char *buf, size_t count)
519 {
520 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
521 int nr = sensor_attr->index;
522 struct i2c_client *client = to_i2c_client(dev);
523 struct w83792d_data *data = i2c_get_clientdata(client);
524 long val;
525 int err;
526
527 err = kstrtol(buf, 10, &val);
528 if (err)
529 return err;
530
531 mutex_lock(&data->update_lock);
532 data->temp1[nr] = TEMP1_TO_REG(val);
533 w83792d_write_value(client, W83792D_REG_TEMP1[nr],
534 data->temp1[nr]);
535 mutex_unlock(&data->update_lock);
536
537 return count;
538 }
539
540 /* read/write the temperature2-3, includes measured value and limits */
541
542 static ssize_t show_temp23(struct device *dev, struct device_attribute *attr,
543 char *buf)
544 {
545 struct sensor_device_attribute_2 *sensor_attr
546 = to_sensor_dev_attr_2(attr);
547 int nr = sensor_attr->nr;
548 int index = sensor_attr->index;
549 struct w83792d_data *data = w83792d_update_device(dev);
550 return sprintf(buf, "%ld\n",
551 (long)TEMP_ADD_FROM_REG(data->temp_add[nr][index],
552 data->temp_add[nr][index+1]));
553 }
554
555 static ssize_t store_temp23(struct device *dev, struct device_attribute *attr,
556 const char *buf, size_t count)
557 {
558 struct sensor_device_attribute_2 *sensor_attr
559 = to_sensor_dev_attr_2(attr);
560 int nr = sensor_attr->nr;
561 int index = sensor_attr->index;
562 struct i2c_client *client = to_i2c_client(dev);
563 struct w83792d_data *data = i2c_get_clientdata(client);
564 long val;
565 int err;
566
567 err = kstrtol(buf, 10, &val);
568 if (err)
569 return err;
570
571 mutex_lock(&data->update_lock);
572 data->temp_add[nr][index] = TEMP_ADD_TO_REG_HIGH(val);
573 data->temp_add[nr][index+1] = TEMP_ADD_TO_REG_LOW(val);
574 w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index],
575 data->temp_add[nr][index]);
576 w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index+1],
577 data->temp_add[nr][index+1]);
578 mutex_unlock(&data->update_lock);
579
580 return count;
581 }
582
583 /* get reatime status of all sensors items: voltage, temp, fan */
584 static ssize_t
585 show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf)
586 {
587 struct w83792d_data *data = w83792d_update_device(dev);
588 return sprintf(buf, "%d\n", data->alarms);
589 }
590
591 static ssize_t show_alarm(struct device *dev,
592 struct device_attribute *attr, char *buf)
593 {
594 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
595 int nr = sensor_attr->index;
596 struct w83792d_data *data = w83792d_update_device(dev);
597 return sprintf(buf, "%d\n", (data->alarms >> nr) & 1);
598 }
599
600 static ssize_t
601 show_pwm(struct device *dev, struct device_attribute *attr,
602 char *buf)
603 {
604 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
605 int nr = sensor_attr->index;
606 struct w83792d_data *data = w83792d_update_device(dev);
607 return sprintf(buf, "%d\n", (data->pwm[nr] & 0x0f) << 4);
608 }
609
610 static ssize_t
611 show_pwmenable(struct device *dev, struct device_attribute *attr,
612 char *buf)
613 {
614 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
615 int nr = sensor_attr->index - 1;
616 struct w83792d_data *data = w83792d_update_device(dev);
617 long pwm_enable_tmp = 1;
618
619 switch (data->pwmenable[nr]) {
620 case 0:
621 pwm_enable_tmp = 1; /* manual mode */
622 break;
623 case 1:
624 pwm_enable_tmp = 3; /*thermal cruise/Smart Fan I */
625 break;
626 case 2:
627 pwm_enable_tmp = 2; /* Smart Fan II */
628 break;
629 }
630
631 return sprintf(buf, "%ld\n", pwm_enable_tmp);
632 }
633
634 static ssize_t
635 store_pwm(struct device *dev, struct device_attribute *attr,
636 const char *buf, size_t count)
637 {
638 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
639 int nr = sensor_attr->index;
640 struct i2c_client *client = to_i2c_client(dev);
641 struct w83792d_data *data = i2c_get_clientdata(client);
642 unsigned long val;
643 int err;
644
645 err = kstrtoul(buf, 10, &val);
646 if (err)
647 return err;
648 val = SENSORS_LIMIT(val, 0, 255) >> 4;
649
650 mutex_lock(&data->update_lock);
651 val |= w83792d_read_value(client, W83792D_REG_PWM[nr]) & 0xf0;
652 data->pwm[nr] = val;
653 w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]);
654 mutex_unlock(&data->update_lock);
655
656 return count;
657 }
658
659 static ssize_t
660 store_pwmenable(struct device *dev, struct device_attribute *attr,
661 const char *buf, size_t count)
662 {
663 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
664 int nr = sensor_attr->index - 1;
665 struct i2c_client *client = to_i2c_client(dev);
666 struct w83792d_data *data = i2c_get_clientdata(client);
667 u8 fan_cfg_tmp, cfg1_tmp, cfg2_tmp, cfg3_tmp, cfg4_tmp;
668 unsigned long val;
669 int err;
670
671 err = kstrtoul(buf, 10, &val);
672 if (err)
673 return err;
674
675 if (val < 1 || val > 3)
676 return -EINVAL;
677
678 mutex_lock(&data->update_lock);
679 switch (val) {
680 case 1:
681 data->pwmenable[nr] = 0; /* manual mode */
682 break;
683 case 2:
684 data->pwmenable[nr] = 2; /* Smart Fan II */
685 break;
686 case 3:
687 data->pwmenable[nr] = 1; /* thermal cruise/Smart Fan I */
688 break;
689 }
690 cfg1_tmp = data->pwmenable[0];
691 cfg2_tmp = (data->pwmenable[1]) << 2;
692 cfg3_tmp = (data->pwmenable[2]) << 4;
693 cfg4_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG) & 0xc0;
694 fan_cfg_tmp = ((cfg4_tmp | cfg3_tmp) | cfg2_tmp) | cfg1_tmp;
695 w83792d_write_value(client, W83792D_REG_FAN_CFG, fan_cfg_tmp);
696 mutex_unlock(&data->update_lock);
697
698 return count;
699 }
700
701 static ssize_t
702 show_pwm_mode(struct device *dev, struct device_attribute *attr,
703 char *buf)
704 {
705 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
706 int nr = sensor_attr->index;
707 struct w83792d_data *data = w83792d_update_device(dev);
708 return sprintf(buf, "%d\n", data->pwm[nr] >> 7);
709 }
710
711 static ssize_t
712 store_pwm_mode(struct device *dev, struct device_attribute *attr,
713 const char *buf, size_t count)
714 {
715 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
716 int nr = sensor_attr->index;
717 struct i2c_client *client = to_i2c_client(dev);
718 struct w83792d_data *data = i2c_get_clientdata(client);
719 unsigned long val;
720 int err;
721
722 err = kstrtoul(buf, 10, &val);
723 if (err)
724 return err;
725 if (val > 1)
726 return -EINVAL;
727
728 mutex_lock(&data->update_lock);
729 data->pwm[nr] = w83792d_read_value(client, W83792D_REG_PWM[nr]);
730 if (val) { /* PWM mode */
731 data->pwm[nr] |= 0x80;
732 } else { /* DC mode */
733 data->pwm[nr] &= 0x7f;
734 }
735 w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]);
736 mutex_unlock(&data->update_lock);
737
738 return count;
739 }
740
741 static ssize_t
742 show_chassis(struct device *dev, struct device_attribute *attr,
743 char *buf)
744 {
745 struct w83792d_data *data = w83792d_update_device(dev);
746 return sprintf(buf, "%d\n", data->chassis);
747 }
748
749 static ssize_t
750 show_regs_chassis(struct device *dev, struct device_attribute *attr,
751 char *buf)
752 {
753 dev_warn(dev,
754 "Attribute %s is deprecated, use intrusion0_alarm instead\n",
755 "chassis");
756 return show_chassis(dev, attr, buf);
757 }
758
759 static ssize_t
760 show_chassis_clear(struct device *dev, struct device_attribute *attr, char *buf)
761 {
762 struct w83792d_data *data = w83792d_update_device(dev);
763 return sprintf(buf, "%d\n", data->chassis_clear);
764 }
765
766 static ssize_t
767 store_chassis_clear_legacy(struct device *dev, struct device_attribute *attr,
768 const char *buf, size_t count)
769 {
770 struct i2c_client *client = to_i2c_client(dev);
771 struct w83792d_data *data = i2c_get_clientdata(client);
772 unsigned long val;
773 int err;
774 u8 temp1 = 0, temp2 = 0;
775
776 dev_warn(dev,
777 "Attribute %s is deprecated, use intrusion0_alarm instead\n",
778 "chassis_clear");
779
780 err = kstrtoul(buf, 10, &val);
781 if (err)
782 return err;
783
784 mutex_lock(&data->update_lock);
785 data->chassis_clear = SENSORS_LIMIT(val, 0, 1);
786 temp1 = ((data->chassis_clear) << 7) & 0x80;
787 temp2 = w83792d_read_value(client,
788 W83792D_REG_CHASSIS_CLR) & 0x7f;
789 w83792d_write_value(client, W83792D_REG_CHASSIS_CLR, temp1 | temp2);
790 mutex_unlock(&data->update_lock);
791
792 return count;
793 }
794
795 static ssize_t
796 store_chassis_clear(struct device *dev, struct device_attribute *attr,
797 const char *buf, size_t count)
798 {
799 struct i2c_client *client = to_i2c_client(dev);
800 struct w83792d_data *data = i2c_get_clientdata(client);
801 unsigned long val;
802 u8 reg;
803
804 if (kstrtoul(buf, 10, &val) || val != 0)
805 return -EINVAL;
806
807 mutex_lock(&data->update_lock);
808 reg = w83792d_read_value(client, W83792D_REG_CHASSIS_CLR);
809 w83792d_write_value(client, W83792D_REG_CHASSIS_CLR, reg | 0x80);
810 data->valid = 0; /* Force cache refresh */
811 mutex_unlock(&data->update_lock);
812
813 return count;
814 }
815
816 /* For Smart Fan I / Thermal Cruise */
817 static ssize_t
818 show_thermal_cruise(struct device *dev, struct device_attribute *attr,
819 char *buf)
820 {
821 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
822 int nr = sensor_attr->index;
823 struct w83792d_data *data = w83792d_update_device(dev);
824 return sprintf(buf, "%ld\n", (long)data->thermal_cruise[nr-1]);
825 }
826
827 static ssize_t
828 store_thermal_cruise(struct device *dev, struct device_attribute *attr,
829 const char *buf, size_t count)
830 {
831 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
832 int nr = sensor_attr->index - 1;
833 struct i2c_client *client = to_i2c_client(dev);
834 struct w83792d_data *data = i2c_get_clientdata(client);
835 u8 target_tmp = 0, target_mask = 0;
836 unsigned long val;
837 int err;
838
839 err = kstrtoul(buf, 10, &val);
840 if (err)
841 return err;
842
843 target_tmp = val;
844 target_tmp = target_tmp & 0x7f;
845 mutex_lock(&data->update_lock);
846 target_mask = w83792d_read_value(client,
847 W83792D_REG_THERMAL[nr]) & 0x80;
848 data->thermal_cruise[nr] = SENSORS_LIMIT(target_tmp, 0, 255);
849 w83792d_write_value(client, W83792D_REG_THERMAL[nr],
850 (data->thermal_cruise[nr]) | target_mask);
851 mutex_unlock(&data->update_lock);
852
853 return count;
854 }
855
856 /* For Smart Fan I/Thermal Cruise and Smart Fan II */
857 static ssize_t
858 show_tolerance(struct device *dev, struct device_attribute *attr,
859 char *buf)
860 {
861 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
862 int nr = sensor_attr->index;
863 struct w83792d_data *data = w83792d_update_device(dev);
864 return sprintf(buf, "%ld\n", (long)data->tolerance[nr-1]);
865 }
866
867 static ssize_t
868 store_tolerance(struct device *dev, struct device_attribute *attr,
869 const char *buf, size_t count)
870 {
871 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
872 int nr = sensor_attr->index - 1;
873 struct i2c_client *client = to_i2c_client(dev);
874 struct w83792d_data *data = i2c_get_clientdata(client);
875 u8 tol_tmp, tol_mask;
876 unsigned long val;
877 int err;
878
879 err = kstrtoul(buf, 10, &val);
880 if (err)
881 return err;
882
883 mutex_lock(&data->update_lock);
884 tol_mask = w83792d_read_value(client,
885 W83792D_REG_TOLERANCE[nr]) & ((nr == 1) ? 0x0f : 0xf0);
886 tol_tmp = SENSORS_LIMIT(val, 0, 15);
887 tol_tmp &= 0x0f;
888 data->tolerance[nr] = tol_tmp;
889 if (nr == 1)
890 tol_tmp <<= 4;
891 w83792d_write_value(client, W83792D_REG_TOLERANCE[nr],
892 tol_mask | tol_tmp);
893 mutex_unlock(&data->update_lock);
894
895 return count;
896 }
897
898 /* For Smart Fan II */
899 static ssize_t
900 show_sf2_point(struct device *dev, struct device_attribute *attr,
901 char *buf)
902 {
903 struct sensor_device_attribute_2 *sensor_attr
904 = to_sensor_dev_attr_2(attr);
905 int nr = sensor_attr->nr;
906 int index = sensor_attr->index;
907 struct w83792d_data *data = w83792d_update_device(dev);
908 return sprintf(buf, "%ld\n", (long)data->sf2_points[index-1][nr-1]);
909 }
910
911 static ssize_t
912 store_sf2_point(struct device *dev, struct device_attribute *attr,
913 const char *buf, size_t count)
914 {
915 struct sensor_device_attribute_2 *sensor_attr
916 = to_sensor_dev_attr_2(attr);
917 int nr = sensor_attr->nr - 1;
918 int index = sensor_attr->index - 1;
919 struct i2c_client *client = to_i2c_client(dev);
920 struct w83792d_data *data = i2c_get_clientdata(client);
921 u8 mask_tmp = 0;
922 unsigned long val;
923 int err;
924
925 err = kstrtoul(buf, 10, &val);
926 if (err)
927 return err;
928
929 mutex_lock(&data->update_lock);
930 data->sf2_points[index][nr] = SENSORS_LIMIT(val, 0, 127);
931 mask_tmp = w83792d_read_value(client,
932 W83792D_REG_POINTS[index][nr]) & 0x80;
933 w83792d_write_value(client, W83792D_REG_POINTS[index][nr],
934 mask_tmp|data->sf2_points[index][nr]);
935 mutex_unlock(&data->update_lock);
936
937 return count;
938 }
939
940 static ssize_t
941 show_sf2_level(struct device *dev, struct device_attribute *attr,
942 char *buf)
943 {
944 struct sensor_device_attribute_2 *sensor_attr
945 = to_sensor_dev_attr_2(attr);
946 int nr = sensor_attr->nr;
947 int index = sensor_attr->index;
948 struct w83792d_data *data = w83792d_update_device(dev);
949 return sprintf(buf, "%d\n",
950 (((data->sf2_levels[index-1][nr]) * 100) / 15));
951 }
952
953 static ssize_t
954 store_sf2_level(struct device *dev, struct device_attribute *attr,
955 const char *buf, size_t count)
956 {
957 struct sensor_device_attribute_2 *sensor_attr
958 = to_sensor_dev_attr_2(attr);
959 int nr = sensor_attr->nr;
960 int index = sensor_attr->index - 1;
961 struct i2c_client *client = to_i2c_client(dev);
962 struct w83792d_data *data = i2c_get_clientdata(client);
963 u8 mask_tmp = 0, level_tmp = 0;
964 unsigned long val;
965 int err;
966
967 err = kstrtoul(buf, 10, &val);
968 if (err)
969 return err;
970
971 mutex_lock(&data->update_lock);
972 data->sf2_levels[index][nr] = SENSORS_LIMIT((val * 15) / 100, 0, 15);
973 mask_tmp = w83792d_read_value(client, W83792D_REG_LEVELS[index][nr])
974 & ((nr == 3) ? 0xf0 : 0x0f);
975 if (nr == 3)
976 level_tmp = data->sf2_levels[index][nr];
977 else
978 level_tmp = data->sf2_levels[index][nr] << 4;
979 w83792d_write_value(client, W83792D_REG_LEVELS[index][nr],
980 level_tmp | mask_tmp);
981 mutex_unlock(&data->update_lock);
982
983 return count;
984 }
985
986
987 static int
988 w83792d_detect_subclients(struct i2c_client *new_client)
989 {
990 int i, id, err;
991 int address = new_client->addr;
992 u8 val;
993 struct i2c_adapter *adapter = new_client->adapter;
994 struct w83792d_data *data = i2c_get_clientdata(new_client);
995
996 id = i2c_adapter_id(adapter);
997 if (force_subclients[0] == id && force_subclients[1] == address) {
998 for (i = 2; i <= 3; i++) {
999 if (force_subclients[i] < 0x48 ||
1000 force_subclients[i] > 0x4f) {
1001 dev_err(&new_client->dev, "invalid subclient "
1002 "address %d; must be 0x48-0x4f\n",
1003 force_subclients[i]);
1004 err = -ENODEV;
1005 goto ERROR_SC_0;
1006 }
1007 }
1008 w83792d_write_value(new_client, W83792D_REG_I2C_SUBADDR,
1009 (force_subclients[2] & 0x07) |
1010 ((force_subclients[3] & 0x07) << 4));
1011 }
1012
1013 val = w83792d_read_value(new_client, W83792D_REG_I2C_SUBADDR);
1014 if (!(val & 0x08))
1015 data->lm75[0] = i2c_new_dummy(adapter, 0x48 + (val & 0x7));
1016 if (!(val & 0x80)) {
1017 if ((data->lm75[0] != NULL) &&
1018 ((val & 0x7) == ((val >> 4) & 0x7))) {
1019 dev_err(&new_client->dev, "duplicate addresses 0x%x, "
1020 "use force_subclient\n", data->lm75[0]->addr);
1021 err = -ENODEV;
1022 goto ERROR_SC_1;
1023 }
1024 data->lm75[1] = i2c_new_dummy(adapter,
1025 0x48 + ((val >> 4) & 0x7));
1026 }
1027
1028 return 0;
1029
1030 /* Undo inits in case of errors */
1031
1032 ERROR_SC_1:
1033 if (data->lm75[0] != NULL)
1034 i2c_unregister_device(data->lm75[0]);
1035 ERROR_SC_0:
1036 return err;
1037 }
1038
1039 static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0);
1040 static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1);
1041 static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2);
1042 static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3);
1043 static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 4);
1044 static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 5);
1045 static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 6);
1046 static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 7);
1047 static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_in, NULL, 8);
1048 static SENSOR_DEVICE_ATTR(in0_min, S_IWUSR | S_IRUGO,
1049 show_in_min, store_in_min, 0);
1050 static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO,
1051 show_in_min, store_in_min, 1);
1052 static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO,
1053 show_in_min, store_in_min, 2);
1054 static SENSOR_DEVICE_ATTR(in3_min, S_IWUSR | S_IRUGO,
1055 show_in_min, store_in_min, 3);
1056 static SENSOR_DEVICE_ATTR(in4_min, S_IWUSR | S_IRUGO,
1057 show_in_min, store_in_min, 4);
1058 static SENSOR_DEVICE_ATTR(in5_min, S_IWUSR | S_IRUGO,
1059 show_in_min, store_in_min, 5);
1060 static SENSOR_DEVICE_ATTR(in6_min, S_IWUSR | S_IRUGO,
1061 show_in_min, store_in_min, 6);
1062 static SENSOR_DEVICE_ATTR(in7_min, S_IWUSR | S_IRUGO,
1063 show_in_min, store_in_min, 7);
1064 static SENSOR_DEVICE_ATTR(in8_min, S_IWUSR | S_IRUGO,
1065 show_in_min, store_in_min, 8);
1066 static SENSOR_DEVICE_ATTR(in0_max, S_IWUSR | S_IRUGO,
1067 show_in_max, store_in_max, 0);
1068 static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO,
1069 show_in_max, store_in_max, 1);
1070 static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO,
1071 show_in_max, store_in_max, 2);
1072 static SENSOR_DEVICE_ATTR(in3_max, S_IWUSR | S_IRUGO,
1073 show_in_max, store_in_max, 3);
1074 static SENSOR_DEVICE_ATTR(in4_max, S_IWUSR | S_IRUGO,
1075 show_in_max, store_in_max, 4);
1076 static SENSOR_DEVICE_ATTR(in5_max, S_IWUSR | S_IRUGO,
1077 show_in_max, store_in_max, 5);
1078 static SENSOR_DEVICE_ATTR(in6_max, S_IWUSR | S_IRUGO,
1079 show_in_max, store_in_max, 6);
1080 static SENSOR_DEVICE_ATTR(in7_max, S_IWUSR | S_IRUGO,
1081 show_in_max, store_in_max, 7);
1082 static SENSOR_DEVICE_ATTR(in8_max, S_IWUSR | S_IRUGO,
1083 show_in_max, store_in_max, 8);
1084 static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp1, NULL, 0, 0);
1085 static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp23, NULL, 0, 0);
1086 static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp23, NULL, 1, 0);
1087 static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR,
1088 show_temp1, store_temp1, 0, 1);
1089 static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp23,
1090 store_temp23, 0, 2);
1091 static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp23,
1092 store_temp23, 1, 2);
1093 static SENSOR_DEVICE_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR,
1094 show_temp1, store_temp1, 0, 2);
1095 static SENSOR_DEVICE_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR,
1096 show_temp23, store_temp23, 0, 4);
1097 static SENSOR_DEVICE_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR,
1098 show_temp23, store_temp23, 1, 4);
1099 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
1100 static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
1101 static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
1102 static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 2);
1103 static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 3);
1104 static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 4);
1105 static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 5);
1106 static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 6);
1107 static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 7);
1108 static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 8);
1109 static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 9);
1110 static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 10);
1111 static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 11);
1112 static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 12);
1113 static SENSOR_DEVICE_ATTR(fan7_alarm, S_IRUGO, show_alarm, NULL, 15);
1114 static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 19);
1115 static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 20);
1116 static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 21);
1117 static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 22);
1118 static SENSOR_DEVICE_ATTR(fan6_alarm, S_IRUGO, show_alarm, NULL, 23);
1119 static DEVICE_ATTR(chassis, S_IRUGO, show_regs_chassis, NULL);
1120 static DEVICE_ATTR(chassis_clear, S_IRUGO | S_IWUSR,
1121 show_chassis_clear, store_chassis_clear_legacy);
1122 static DEVICE_ATTR(intrusion0_alarm, S_IRUGO | S_IWUSR,
1123 show_chassis, store_chassis_clear);
1124 static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0);
1125 static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1);
1126 static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2);
1127 static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO,
1128 show_pwmenable, store_pwmenable, 1);
1129 static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO,
1130 show_pwmenable, store_pwmenable, 2);
1131 static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO,
1132 show_pwmenable, store_pwmenable, 3);
1133 static SENSOR_DEVICE_ATTR(pwm1_mode, S_IWUSR | S_IRUGO,
1134 show_pwm_mode, store_pwm_mode, 0);
1135 static SENSOR_DEVICE_ATTR(pwm2_mode, S_IWUSR | S_IRUGO,
1136 show_pwm_mode, store_pwm_mode, 1);
1137 static SENSOR_DEVICE_ATTR(pwm3_mode, S_IWUSR | S_IRUGO,
1138 show_pwm_mode, store_pwm_mode, 2);
1139 static SENSOR_DEVICE_ATTR(tolerance1, S_IWUSR | S_IRUGO,
1140 show_tolerance, store_tolerance, 1);
1141 static SENSOR_DEVICE_ATTR(tolerance2, S_IWUSR | S_IRUGO,
1142 show_tolerance, store_tolerance, 2);
1143 static SENSOR_DEVICE_ATTR(tolerance3, S_IWUSR | S_IRUGO,
1144 show_tolerance, store_tolerance, 3);
1145 static SENSOR_DEVICE_ATTR(thermal_cruise1, S_IWUSR | S_IRUGO,
1146 show_thermal_cruise, store_thermal_cruise, 1);
1147 static SENSOR_DEVICE_ATTR(thermal_cruise2, S_IWUSR | S_IRUGO,
1148 show_thermal_cruise, store_thermal_cruise, 2);
1149 static SENSOR_DEVICE_ATTR(thermal_cruise3, S_IWUSR | S_IRUGO,
1150 show_thermal_cruise, store_thermal_cruise, 3);
1151 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan1, S_IRUGO | S_IWUSR,
1152 show_sf2_point, store_sf2_point, 1, 1);
1153 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan1, S_IRUGO | S_IWUSR,
1154 show_sf2_point, store_sf2_point, 2, 1);
1155 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan1, S_IRUGO | S_IWUSR,
1156 show_sf2_point, store_sf2_point, 3, 1);
1157 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan1, S_IRUGO | S_IWUSR,
1158 show_sf2_point, store_sf2_point, 4, 1);
1159 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan2, S_IRUGO | S_IWUSR,
1160 show_sf2_point, store_sf2_point, 1, 2);
1161 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan2, S_IRUGO | S_IWUSR,
1162 show_sf2_point, store_sf2_point, 2, 2);
1163 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan2, S_IRUGO | S_IWUSR,
1164 show_sf2_point, store_sf2_point, 3, 2);
1165 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan2, S_IRUGO | S_IWUSR,
1166 show_sf2_point, store_sf2_point, 4, 2);
1167 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan3, S_IRUGO | S_IWUSR,
1168 show_sf2_point, store_sf2_point, 1, 3);
1169 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan3, S_IRUGO | S_IWUSR,
1170 show_sf2_point, store_sf2_point, 2, 3);
1171 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan3, S_IRUGO | S_IWUSR,
1172 show_sf2_point, store_sf2_point, 3, 3);
1173 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan3, S_IRUGO | S_IWUSR,
1174 show_sf2_point, store_sf2_point, 4, 3);
1175 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan1, S_IRUGO | S_IWUSR,
1176 show_sf2_level, store_sf2_level, 1, 1);
1177 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan1, S_IRUGO | S_IWUSR,
1178 show_sf2_level, store_sf2_level, 2, 1);
1179 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan1, S_IRUGO | S_IWUSR,
1180 show_sf2_level, store_sf2_level, 3, 1);
1181 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan2, S_IRUGO | S_IWUSR,
1182 show_sf2_level, store_sf2_level, 1, 2);
1183 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan2, S_IRUGO | S_IWUSR,
1184 show_sf2_level, store_sf2_level, 2, 2);
1185 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan2, S_IRUGO | S_IWUSR,
1186 show_sf2_level, store_sf2_level, 3, 2);
1187 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan3, S_IRUGO | S_IWUSR,
1188 show_sf2_level, store_sf2_level, 1, 3);
1189 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan3, S_IRUGO | S_IWUSR,
1190 show_sf2_level, store_sf2_level, 2, 3);
1191 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan3, S_IRUGO | S_IWUSR,
1192 show_sf2_level, store_sf2_level, 3, 3);
1193 static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 1);
1194 static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 2);
1195 static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 3);
1196 static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 4);
1197 static SENSOR_DEVICE_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 5);
1198 static SENSOR_DEVICE_ATTR(fan6_input, S_IRUGO, show_fan, NULL, 6);
1199 static SENSOR_DEVICE_ATTR(fan7_input, S_IRUGO, show_fan, NULL, 7);
1200 static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO,
1201 show_fan_min, store_fan_min, 1);
1202 static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO,
1203 show_fan_min, store_fan_min, 2);
1204 static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO,
1205 show_fan_min, store_fan_min, 3);
1206 static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO,
1207 show_fan_min, store_fan_min, 4);
1208 static SENSOR_DEVICE_ATTR(fan5_min, S_IWUSR | S_IRUGO,
1209 show_fan_min, store_fan_min, 5);
1210 static SENSOR_DEVICE_ATTR(fan6_min, S_IWUSR | S_IRUGO,
1211 show_fan_min, store_fan_min, 6);
1212 static SENSOR_DEVICE_ATTR(fan7_min, S_IWUSR | S_IRUGO,
1213 show_fan_min, store_fan_min, 7);
1214 static SENSOR_DEVICE_ATTR(fan1_div, S_IWUSR | S_IRUGO,
1215 show_fan_div, store_fan_div, 1);
1216 static SENSOR_DEVICE_ATTR(fan2_div, S_IWUSR | S_IRUGO,
1217 show_fan_div, store_fan_div, 2);
1218 static SENSOR_DEVICE_ATTR(fan3_div, S_IWUSR | S_IRUGO,
1219 show_fan_div, store_fan_div, 3);
1220 static SENSOR_DEVICE_ATTR(fan4_div, S_IWUSR | S_IRUGO,
1221 show_fan_div, store_fan_div, 4);
1222 static SENSOR_DEVICE_ATTR(fan5_div, S_IWUSR | S_IRUGO,
1223 show_fan_div, store_fan_div, 5);
1224 static SENSOR_DEVICE_ATTR(fan6_div, S_IWUSR | S_IRUGO,
1225 show_fan_div, store_fan_div, 6);
1226 static SENSOR_DEVICE_ATTR(fan7_div, S_IWUSR | S_IRUGO,
1227 show_fan_div, store_fan_div, 7);
1228
1229 static struct attribute *w83792d_attributes_fan[4][5] = {
1230 {
1231 &sensor_dev_attr_fan4_input.dev_attr.attr,
1232 &sensor_dev_attr_fan4_min.dev_attr.attr,
1233 &sensor_dev_attr_fan4_div.dev_attr.attr,
1234 &sensor_dev_attr_fan4_alarm.dev_attr.attr,
1235 NULL
1236 }, {
1237 &sensor_dev_attr_fan5_input.dev_attr.attr,
1238 &sensor_dev_attr_fan5_min.dev_attr.attr,
1239 &sensor_dev_attr_fan5_div.dev_attr.attr,
1240 &sensor_dev_attr_fan5_alarm.dev_attr.attr,
1241 NULL
1242 }, {
1243 &sensor_dev_attr_fan6_input.dev_attr.attr,
1244 &sensor_dev_attr_fan6_min.dev_attr.attr,
1245 &sensor_dev_attr_fan6_div.dev_attr.attr,
1246 &sensor_dev_attr_fan6_alarm.dev_attr.attr,
1247 NULL
1248 }, {
1249 &sensor_dev_attr_fan7_input.dev_attr.attr,
1250 &sensor_dev_attr_fan7_min.dev_attr.attr,
1251 &sensor_dev_attr_fan7_div.dev_attr.attr,
1252 &sensor_dev_attr_fan7_alarm.dev_attr.attr,
1253 NULL
1254 }
1255 };
1256
1257 static const struct attribute_group w83792d_group_fan[4] = {
1258 { .attrs = w83792d_attributes_fan[0] },
1259 { .attrs = w83792d_attributes_fan[1] },
1260 { .attrs = w83792d_attributes_fan[2] },
1261 { .attrs = w83792d_attributes_fan[3] },
1262 };
1263
1264 static struct attribute *w83792d_attributes[] = {
1265 &sensor_dev_attr_in0_input.dev_attr.attr,
1266 &sensor_dev_attr_in0_max.dev_attr.attr,
1267 &sensor_dev_attr_in0_min.dev_attr.attr,
1268 &sensor_dev_attr_in1_input.dev_attr.attr,
1269 &sensor_dev_attr_in1_max.dev_attr.attr,
1270 &sensor_dev_attr_in1_min.dev_attr.attr,
1271 &sensor_dev_attr_in2_input.dev_attr.attr,
1272 &sensor_dev_attr_in2_max.dev_attr.attr,
1273 &sensor_dev_attr_in2_min.dev_attr.attr,
1274 &sensor_dev_attr_in3_input.dev_attr.attr,
1275 &sensor_dev_attr_in3_max.dev_attr.attr,
1276 &sensor_dev_attr_in3_min.dev_attr.attr,
1277 &sensor_dev_attr_in4_input.dev_attr.attr,
1278 &sensor_dev_attr_in4_max.dev_attr.attr,
1279 &sensor_dev_attr_in4_min.dev_attr.attr,
1280 &sensor_dev_attr_in5_input.dev_attr.attr,
1281 &sensor_dev_attr_in5_max.dev_attr.attr,
1282 &sensor_dev_attr_in5_min.dev_attr.attr,
1283 &sensor_dev_attr_in6_input.dev_attr.attr,
1284 &sensor_dev_attr_in6_max.dev_attr.attr,
1285 &sensor_dev_attr_in6_min.dev_attr.attr,
1286 &sensor_dev_attr_in7_input.dev_attr.attr,
1287 &sensor_dev_attr_in7_max.dev_attr.attr,
1288 &sensor_dev_attr_in7_min.dev_attr.attr,
1289 &sensor_dev_attr_in8_input.dev_attr.attr,
1290 &sensor_dev_attr_in8_max.dev_attr.attr,
1291 &sensor_dev_attr_in8_min.dev_attr.attr,
1292 &sensor_dev_attr_in0_alarm.dev_attr.attr,
1293 &sensor_dev_attr_in1_alarm.dev_attr.attr,
1294 &sensor_dev_attr_in2_alarm.dev_attr.attr,
1295 &sensor_dev_attr_in3_alarm.dev_attr.attr,
1296 &sensor_dev_attr_in4_alarm.dev_attr.attr,
1297 &sensor_dev_attr_in5_alarm.dev_attr.attr,
1298 &sensor_dev_attr_in6_alarm.dev_attr.attr,
1299 &sensor_dev_attr_in7_alarm.dev_attr.attr,
1300 &sensor_dev_attr_in8_alarm.dev_attr.attr,
1301 &sensor_dev_attr_temp1_input.dev_attr.attr,
1302 &sensor_dev_attr_temp1_max.dev_attr.attr,
1303 &sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
1304 &sensor_dev_attr_temp2_input.dev_attr.attr,
1305 &sensor_dev_attr_temp2_max.dev_attr.attr,
1306 &sensor_dev_attr_temp2_max_hyst.dev_attr.attr,
1307 &sensor_dev_attr_temp3_input.dev_attr.attr,
1308 &sensor_dev_attr_temp3_max.dev_attr.attr,
1309 &sensor_dev_attr_temp3_max_hyst.dev_attr.attr,
1310 &sensor_dev_attr_temp1_alarm.dev_attr.attr,
1311 &sensor_dev_attr_temp2_alarm.dev_attr.attr,
1312 &sensor_dev_attr_temp3_alarm.dev_attr.attr,
1313 &sensor_dev_attr_pwm1.dev_attr.attr,
1314 &sensor_dev_attr_pwm1_mode.dev_attr.attr,
1315 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
1316 &sensor_dev_attr_pwm2.dev_attr.attr,
1317 &sensor_dev_attr_pwm2_mode.dev_attr.attr,
1318 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
1319 &sensor_dev_attr_pwm3.dev_attr.attr,
1320 &sensor_dev_attr_pwm3_mode.dev_attr.attr,
1321 &sensor_dev_attr_pwm3_enable.dev_attr.attr,
1322 &dev_attr_alarms.attr,
1323 &dev_attr_chassis.attr,
1324 &dev_attr_chassis_clear.attr,
1325 &dev_attr_intrusion0_alarm.attr,
1326 &sensor_dev_attr_tolerance1.dev_attr.attr,
1327 &sensor_dev_attr_thermal_cruise1.dev_attr.attr,
1328 &sensor_dev_attr_tolerance2.dev_attr.attr,
1329 &sensor_dev_attr_thermal_cruise2.dev_attr.attr,
1330 &sensor_dev_attr_tolerance3.dev_attr.attr,
1331 &sensor_dev_attr_thermal_cruise3.dev_attr.attr,
1332 &sensor_dev_attr_sf2_point1_fan1.dev_attr.attr,
1333 &sensor_dev_attr_sf2_point2_fan1.dev_attr.attr,
1334 &sensor_dev_attr_sf2_point3_fan1.dev_attr.attr,
1335 &sensor_dev_attr_sf2_point4_fan1.dev_attr.attr,
1336 &sensor_dev_attr_sf2_point1_fan2.dev_attr.attr,
1337 &sensor_dev_attr_sf2_point2_fan2.dev_attr.attr,
1338 &sensor_dev_attr_sf2_point3_fan2.dev_attr.attr,
1339 &sensor_dev_attr_sf2_point4_fan2.dev_attr.attr,
1340 &sensor_dev_attr_sf2_point1_fan3.dev_attr.attr,
1341 &sensor_dev_attr_sf2_point2_fan3.dev_attr.attr,
1342 &sensor_dev_attr_sf2_point3_fan3.dev_attr.attr,
1343 &sensor_dev_attr_sf2_point4_fan3.dev_attr.attr,
1344 &sensor_dev_attr_sf2_level1_fan1.dev_attr.attr,
1345 &sensor_dev_attr_sf2_level2_fan1.dev_attr.attr,
1346 &sensor_dev_attr_sf2_level3_fan1.dev_attr.attr,
1347 &sensor_dev_attr_sf2_level1_fan2.dev_attr.attr,
1348 &sensor_dev_attr_sf2_level2_fan2.dev_attr.attr,
1349 &sensor_dev_attr_sf2_level3_fan2.dev_attr.attr,
1350 &sensor_dev_attr_sf2_level1_fan3.dev_attr.attr,
1351 &sensor_dev_attr_sf2_level2_fan3.dev_attr.attr,
1352 &sensor_dev_attr_sf2_level3_fan3.dev_attr.attr,
1353 &sensor_dev_attr_fan1_input.dev_attr.attr,
1354 &sensor_dev_attr_fan1_min.dev_attr.attr,
1355 &sensor_dev_attr_fan1_div.dev_attr.attr,
1356 &sensor_dev_attr_fan1_alarm.dev_attr.attr,
1357 &sensor_dev_attr_fan2_input.dev_attr.attr,
1358 &sensor_dev_attr_fan2_min.dev_attr.attr,
1359 &sensor_dev_attr_fan2_div.dev_attr.attr,
1360 &sensor_dev_attr_fan2_alarm.dev_attr.attr,
1361 &sensor_dev_attr_fan3_input.dev_attr.attr,
1362 &sensor_dev_attr_fan3_min.dev_attr.attr,
1363 &sensor_dev_attr_fan3_div.dev_attr.attr,
1364 &sensor_dev_attr_fan3_alarm.dev_attr.attr,
1365 NULL
1366 };
1367
1368 static const struct attribute_group w83792d_group = {
1369 .attrs = w83792d_attributes,
1370 };
1371
1372 /* Return 0 if detection is successful, -ENODEV otherwise */
1373 static int
1374 w83792d_detect(struct i2c_client *client, struct i2c_board_info *info)
1375 {
1376 struct i2c_adapter *adapter = client->adapter;
1377 int val1, val2;
1378 unsigned short address = client->addr;
1379
1380 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
1381 return -ENODEV;
1382
1383 if (w83792d_read_value(client, W83792D_REG_CONFIG) & 0x80)
1384 return -ENODEV;
1385
1386 val1 = w83792d_read_value(client, W83792D_REG_BANK);
1387 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN);
1388 /* Check for Winbond ID if in bank 0 */
1389 if (!(val1 & 0x07)) { /* is Bank0 */
1390 if ((!(val1 & 0x80) && val2 != 0xa3) ||
1391 ((val1 & 0x80) && val2 != 0x5c))
1392 return -ENODEV;
1393 }
1394 /*
1395 * If Winbond chip, address of chip and W83792D_REG_I2C_ADDR
1396 * should match
1397 */
1398 if (w83792d_read_value(client, W83792D_REG_I2C_ADDR) != address)
1399 return -ENODEV;
1400
1401 /* Put it now into bank 0 and Vendor ID High Byte */
1402 w83792d_write_value(client,
1403 W83792D_REG_BANK,
1404 (w83792d_read_value(client,
1405 W83792D_REG_BANK) & 0x78) | 0x80);
1406
1407 /* Determine the chip type. */
1408 val1 = w83792d_read_value(client, W83792D_REG_WCHIPID);
1409 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN);
1410 if (val1 != 0x7a || val2 != 0x5c)
1411 return -ENODEV;
1412
1413 strlcpy(info->type, "w83792d", I2C_NAME_SIZE);
1414
1415 return 0;
1416 }
1417
1418 static int
1419 w83792d_probe(struct i2c_client *client, const struct i2c_device_id *id)
1420 {
1421 struct w83792d_data *data;
1422 struct device *dev = &client->dev;
1423 int i, val1, err;
1424
1425 data = devm_kzalloc(dev, sizeof(struct w83792d_data), GFP_KERNEL);
1426 if (!data)
1427 return -ENOMEM;
1428
1429 i2c_set_clientdata(client, data);
1430 data->valid = 0;
1431 mutex_init(&data->update_lock);
1432
1433 err = w83792d_detect_subclients(client);
1434 if (err)
1435 return err;
1436
1437 /* Initialize the chip */
1438 w83792d_init_client(client);
1439
1440 /* A few vars need to be filled upon startup */
1441 for (i = 0; i < 7; i++) {
1442 data->fan_min[i] = w83792d_read_value(client,
1443 W83792D_REG_FAN_MIN[i]);
1444 }
1445
1446 /* Register sysfs hooks */
1447 err = sysfs_create_group(&dev->kobj, &w83792d_group);
1448 if (err)
1449 goto exit_i2c_unregister;
1450
1451 /*
1452 * Read GPIO enable register to check if pins for fan 4,5 are used as
1453 * GPIO
1454 */
1455 val1 = w83792d_read_value(client, W83792D_REG_GPIO_EN);
1456
1457 if (!(val1 & 0x40)) {
1458 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[0]);
1459 if (err)
1460 goto exit_remove_files;
1461 }
1462
1463 if (!(val1 & 0x20)) {
1464 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[1]);
1465 if (err)
1466 goto exit_remove_files;
1467 }
1468
1469 val1 = w83792d_read_value(client, W83792D_REG_PIN);
1470 if (val1 & 0x40) {
1471 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[2]);
1472 if (err)
1473 goto exit_remove_files;
1474 }
1475
1476 if (val1 & 0x04) {
1477 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[3]);
1478 if (err)
1479 goto exit_remove_files;
1480 }
1481
1482 data->hwmon_dev = hwmon_device_register(dev);
1483 if (IS_ERR(data->hwmon_dev)) {
1484 err = PTR_ERR(data->hwmon_dev);
1485 goto exit_remove_files;
1486 }
1487
1488 return 0;
1489
1490 exit_remove_files:
1491 sysfs_remove_group(&dev->kobj, &w83792d_group);
1492 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++)
1493 sysfs_remove_group(&dev->kobj, &w83792d_group_fan[i]);
1494 exit_i2c_unregister:
1495 if (data->lm75[0] != NULL)
1496 i2c_unregister_device(data->lm75[0]);
1497 if (data->lm75[1] != NULL)
1498 i2c_unregister_device(data->lm75[1]);
1499 return err;
1500 }
1501
1502 static int
1503 w83792d_remove(struct i2c_client *client)
1504 {
1505 struct w83792d_data *data = i2c_get_clientdata(client);
1506 int i;
1507
1508 hwmon_device_unregister(data->hwmon_dev);
1509 sysfs_remove_group(&client->dev.kobj, &w83792d_group);
1510 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++)
1511 sysfs_remove_group(&client->dev.kobj,
1512 &w83792d_group_fan[i]);
1513
1514 if (data->lm75[0] != NULL)
1515 i2c_unregister_device(data->lm75[0]);
1516 if (data->lm75[1] != NULL)
1517 i2c_unregister_device(data->lm75[1]);
1518
1519 return 0;
1520 }
1521
1522 static void
1523 w83792d_init_client(struct i2c_client *client)
1524 {
1525 u8 temp2_cfg, temp3_cfg, vid_in_b;
1526
1527 if (init)
1528 w83792d_write_value(client, W83792D_REG_CONFIG, 0x80);
1529
1530 /*
1531 * Clear the bit6 of W83792D_REG_VID_IN_B(set it into 0):
1532 * W83792D_REG_VID_IN_B bit6 = 0: the high/low limit of
1533 * vin0/vin1 can be modified by user;
1534 * W83792D_REG_VID_IN_B bit6 = 1: the high/low limit of
1535 * vin0/vin1 auto-updated, can NOT be modified by user.
1536 */
1537 vid_in_b = w83792d_read_value(client, W83792D_REG_VID_IN_B);
1538 w83792d_write_value(client, W83792D_REG_VID_IN_B,
1539 vid_in_b & 0xbf);
1540
1541 temp2_cfg = w83792d_read_value(client, W83792D_REG_TEMP2_CONFIG);
1542 temp3_cfg = w83792d_read_value(client, W83792D_REG_TEMP3_CONFIG);
1543 w83792d_write_value(client, W83792D_REG_TEMP2_CONFIG,
1544 temp2_cfg & 0xe6);
1545 w83792d_write_value(client, W83792D_REG_TEMP3_CONFIG,
1546 temp3_cfg & 0xe6);
1547
1548 /* Start monitoring */
1549 w83792d_write_value(client, W83792D_REG_CONFIG,
1550 (w83792d_read_value(client,
1551 W83792D_REG_CONFIG) & 0xf7)
1552 | 0x01);
1553 }
1554
1555 static struct w83792d_data *w83792d_update_device(struct device *dev)
1556 {
1557 struct i2c_client *client = to_i2c_client(dev);
1558 struct w83792d_data *data = i2c_get_clientdata(client);
1559 int i, j;
1560 u8 reg_array_tmp[4], reg_tmp;
1561
1562 mutex_lock(&data->update_lock);
1563
1564 if (time_after
1565 (jiffies - data->last_updated, (unsigned long) (HZ * 3))
1566 || time_before(jiffies, data->last_updated) || !data->valid) {
1567 dev_dbg(dev, "Starting device update\n");
1568
1569 /* Update the voltages measured value and limits */
1570 for (i = 0; i < 9; i++) {
1571 data->in[i] = w83792d_read_value(client,
1572 W83792D_REG_IN[i]);
1573 data->in_max[i] = w83792d_read_value(client,
1574 W83792D_REG_IN_MAX[i]);
1575 data->in_min[i] = w83792d_read_value(client,
1576 W83792D_REG_IN_MIN[i]);
1577 }
1578 data->low_bits = w83792d_read_value(client,
1579 W83792D_REG_LOW_BITS1) +
1580 (w83792d_read_value(client,
1581 W83792D_REG_LOW_BITS2) << 8);
1582 for (i = 0; i < 7; i++) {
1583 /* Update the Fan measured value and limits */
1584 data->fan[i] = w83792d_read_value(client,
1585 W83792D_REG_FAN[i]);
1586 data->fan_min[i] = w83792d_read_value(client,
1587 W83792D_REG_FAN_MIN[i]);
1588 /* Update the PWM/DC Value and PWM/DC flag */
1589 data->pwm[i] = w83792d_read_value(client,
1590 W83792D_REG_PWM[i]);
1591 }
1592
1593 reg_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG);
1594 data->pwmenable[0] = reg_tmp & 0x03;
1595 data->pwmenable[1] = (reg_tmp>>2) & 0x03;
1596 data->pwmenable[2] = (reg_tmp>>4) & 0x03;
1597
1598 for (i = 0; i < 3; i++) {
1599 data->temp1[i] = w83792d_read_value(client,
1600 W83792D_REG_TEMP1[i]);
1601 }
1602 for (i = 0; i < 2; i++) {
1603 for (j = 0; j < 6; j++) {
1604 data->temp_add[i][j] = w83792d_read_value(
1605 client, W83792D_REG_TEMP_ADD[i][j]);
1606 }
1607 }
1608
1609 /* Update the Fan Divisor */
1610 for (i = 0; i < 4; i++) {
1611 reg_array_tmp[i] = w83792d_read_value(client,
1612 W83792D_REG_FAN_DIV[i]);
1613 }
1614 data->fan_div[0] = reg_array_tmp[0] & 0x07;
1615 data->fan_div[1] = (reg_array_tmp[0] >> 4) & 0x07;
1616 data->fan_div[2] = reg_array_tmp[1] & 0x07;
1617 data->fan_div[3] = (reg_array_tmp[1] >> 4) & 0x07;
1618 data->fan_div[4] = reg_array_tmp[2] & 0x07;
1619 data->fan_div[5] = (reg_array_tmp[2] >> 4) & 0x07;
1620 data->fan_div[6] = reg_array_tmp[3] & 0x07;
1621
1622 /* Update the realtime status */
1623 data->alarms = w83792d_read_value(client, W83792D_REG_ALARM1) +
1624 (w83792d_read_value(client, W83792D_REG_ALARM2) << 8) +
1625 (w83792d_read_value(client, W83792D_REG_ALARM3) << 16);
1626
1627 /* Update CaseOpen status and it's CLR_CHS. */
1628 data->chassis = (w83792d_read_value(client,
1629 W83792D_REG_CHASSIS) >> 5) & 0x01;
1630 data->chassis_clear = (w83792d_read_value(client,
1631 W83792D_REG_CHASSIS_CLR) >> 7) & 0x01;
1632
1633 /* Update Thermal Cruise/Smart Fan I target value */
1634 for (i = 0; i < 3; i++) {
1635 data->thermal_cruise[i] =
1636 w83792d_read_value(client,
1637 W83792D_REG_THERMAL[i]) & 0x7f;
1638 }
1639
1640 /* Update Smart Fan I/II tolerance */
1641 reg_tmp = w83792d_read_value(client, W83792D_REG_TOLERANCE[0]);
1642 data->tolerance[0] = reg_tmp & 0x0f;
1643 data->tolerance[1] = (reg_tmp >> 4) & 0x0f;
1644 data->tolerance[2] = w83792d_read_value(client,
1645 W83792D_REG_TOLERANCE[2]) & 0x0f;
1646
1647 /* Update Smart Fan II temperature points */
1648 for (i = 0; i < 3; i++) {
1649 for (j = 0; j < 4; j++) {
1650 data->sf2_points[i][j]
1651 = w83792d_read_value(client,
1652 W83792D_REG_POINTS[i][j]) & 0x7f;
1653 }
1654 }
1655
1656 /* Update Smart Fan II duty cycle levels */
1657 for (i = 0; i < 3; i++) {
1658 reg_tmp = w83792d_read_value(client,
1659 W83792D_REG_LEVELS[i][0]);
1660 data->sf2_levels[i][0] = reg_tmp & 0x0f;
1661 data->sf2_levels[i][1] = (reg_tmp >> 4) & 0x0f;
1662 reg_tmp = w83792d_read_value(client,
1663 W83792D_REG_LEVELS[i][2]);
1664 data->sf2_levels[i][2] = (reg_tmp >> 4) & 0x0f;
1665 data->sf2_levels[i][3] = reg_tmp & 0x0f;
1666 }
1667
1668 data->last_updated = jiffies;
1669 data->valid = 1;
1670 }
1671
1672 mutex_unlock(&data->update_lock);
1673
1674 #ifdef DEBUG
1675 w83792d_print_debug(data, dev);
1676 #endif
1677
1678 return data;
1679 }
1680
1681 #ifdef DEBUG
1682 static void w83792d_print_debug(struct w83792d_data *data, struct device *dev)
1683 {
1684 int i = 0, j = 0;
1685 dev_dbg(dev, "==========The following is the debug message...========\n");
1686 dev_dbg(dev, "9 set of Voltages: =====>\n");
1687 for (i = 0; i < 9; i++) {
1688 dev_dbg(dev, "vin[%d] is: 0x%x\n", i, data->in[i]);
1689 dev_dbg(dev, "vin[%d] max is: 0x%x\n", i, data->in_max[i]);
1690 dev_dbg(dev, "vin[%d] min is: 0x%x\n", i, data->in_min[i]);
1691 }
1692 dev_dbg(dev, "Low Bit1 is: 0x%x\n", data->low_bits & 0xff);
1693 dev_dbg(dev, "Low Bit2 is: 0x%x\n", data->low_bits >> 8);
1694 dev_dbg(dev, "7 set of Fan Counts and Duty Cycles: =====>\n");
1695 for (i = 0; i < 7; i++) {
1696 dev_dbg(dev, "fan[%d] is: 0x%x\n", i, data->fan[i]);
1697 dev_dbg(dev, "fan[%d] min is: 0x%x\n", i, data->fan_min[i]);
1698 dev_dbg(dev, "pwm[%d] is: 0x%x\n", i, data->pwm[i]);
1699 }
1700 dev_dbg(dev, "3 set of Temperatures: =====>\n");
1701 for (i = 0; i < 3; i++)
1702 dev_dbg(dev, "temp1[%d] is: 0x%x\n", i, data->temp1[i]);
1703
1704 for (i = 0; i < 2; i++) {
1705 for (j = 0; j < 6; j++) {
1706 dev_dbg(dev, "temp_add[%d][%d] is: 0x%x\n", i, j,
1707 data->temp_add[i][j]);
1708 }
1709 }
1710
1711 for (i = 0; i < 7; i++)
1712 dev_dbg(dev, "fan_div[%d] is: 0x%x\n", i, data->fan_div[i]);
1713
1714 dev_dbg(dev, "==========End of the debug message...================\n");
1715 dev_dbg(dev, "\n");
1716 }
1717 #endif
1718
1719 module_i2c_driver(w83792d_driver);
1720
1721 MODULE_AUTHOR("Chunhao Huang @ Winbond <DZShen@Winbond.com.tw>");
1722 MODULE_DESCRIPTION("W83792AD/D driver for linux-2.6");
1723 MODULE_LICENSE("GPL");
Linux with added FPC-III support