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PM / sleep: Asynchronous threads for suspend_noirq
[linux/fpc-iii.git] / drivers / hwmon / w83792d.c
blobdf585808adb65feb2f53c458799010f68ca4bcc2
1 /*
2 * w83792d.c - Part of lm_sensors, Linux kernel modules for hardware
3 * monitoring
4 * Copyright (C) 2004, 2005 Winbond Electronics Corp.
5 * Shane Huang,
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 #include <linux/jiffies.h>
48
49 /* Addresses to scan */
50 static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f,
51 I2C_CLIENT_END };
52
53 /* Insmod parameters */
54
55 static unsigned short force_subclients[4];
56 module_param_array(force_subclients, short, NULL, 0);
57 MODULE_PARM_DESC(force_subclients,
58 "List of subclient addresses: {bus, clientaddr, subclientaddr1, subclientaddr2}");
59
60 static bool init;
61 module_param(init, bool, 0);
62 MODULE_PARM_DESC(init, "Set to one to force chip initialization");
63
64 /* The W83792D registers */
65 static const u8 W83792D_REG_IN[9] = {
66 0x20, /* Vcore A in DataSheet */
67 0x21, /* Vcore B in DataSheet */
68 0x22, /* VIN0 in DataSheet */
69 0x23, /* VIN1 in DataSheet */
70 0x24, /* VIN2 in DataSheet */
71 0x25, /* VIN3 in DataSheet */
72 0x26, /* 5VCC in DataSheet */
73 0xB0, /* 5VSB in DataSheet */
74 0xB1 /* VBAT in DataSheet */
75 };
76 #define W83792D_REG_LOW_BITS1 0x3E /* Low Bits I in DataSheet */
77 #define W83792D_REG_LOW_BITS2 0x3F /* Low Bits II in DataSheet */
78 static const u8 W83792D_REG_IN_MAX[9] = {
79 0x2B, /* Vcore A High Limit in DataSheet */
80 0x2D, /* Vcore B High Limit in DataSheet */
81 0x2F, /* VIN0 High Limit in DataSheet */
82 0x31, /* VIN1 High Limit in DataSheet */
83 0x33, /* VIN2 High Limit in DataSheet */
84 0x35, /* VIN3 High Limit in DataSheet */
85 0x37, /* 5VCC High Limit in DataSheet */
86 0xB4, /* 5VSB High Limit in DataSheet */
87 0xB6 /* VBAT High Limit in DataSheet */
88 };
89 static const u8 W83792D_REG_IN_MIN[9] = {
90 0x2C, /* Vcore A Low Limit in DataSheet */
91 0x2E, /* Vcore B Low Limit in DataSheet */
92 0x30, /* VIN0 Low Limit in DataSheet */
93 0x32, /* VIN1 Low Limit in DataSheet */
94 0x34, /* VIN2 Low Limit in DataSheet */
95 0x36, /* VIN3 Low Limit in DataSheet */
96 0x38, /* 5VCC Low Limit in DataSheet */
97 0xB5, /* 5VSB Low Limit in DataSheet */
98 0xB7 /* VBAT Low Limit in DataSheet */
99 };
100 static const u8 W83792D_REG_FAN[7] = {
101 0x28, /* FAN 1 Count in DataSheet */
102 0x29, /* FAN 2 Count in DataSheet */
103 0x2A, /* FAN 3 Count in DataSheet */
104 0xB8, /* FAN 4 Count in DataSheet */
105 0xB9, /* FAN 5 Count in DataSheet */
106 0xBA, /* FAN 6 Count in DataSheet */
107 0xBE /* FAN 7 Count in DataSheet */
108 };
109 static const u8 W83792D_REG_FAN_MIN[7] = {
110 0x3B, /* FAN 1 Count Low Limit in DataSheet */
111 0x3C, /* FAN 2 Count Low Limit in DataSheet */
112 0x3D, /* FAN 3 Count Low Limit in DataSheet */
113 0xBB, /* FAN 4 Count Low Limit in DataSheet */
114 0xBC, /* FAN 5 Count Low Limit in DataSheet */
115 0xBD, /* FAN 6 Count Low Limit in DataSheet */
116 0xBF /* FAN 7 Count Low Limit in DataSheet */
117 };
118 #define W83792D_REG_FAN_CFG 0x84 /* FAN Configuration in DataSheet */
119 static const u8 W83792D_REG_FAN_DIV[4] = {
120 0x47, /* contains FAN2 and FAN1 Divisor */
121 0x5B, /* contains FAN4 and FAN3 Divisor */
122 0x5C, /* contains FAN6 and FAN5 Divisor */
123 0x9E /* contains FAN7 Divisor. */
124 };
125 static const u8 W83792D_REG_PWM[7] = {
126 0x81, /* FAN 1 Duty Cycle, be used to control */
127 0x83, /* FAN 2 Duty Cycle, be used to control */
128 0x94, /* FAN 3 Duty Cycle, be used to control */
129 0xA3, /* FAN 4 Duty Cycle, be used to control */
130 0xA4, /* FAN 5 Duty Cycle, be used to control */
131 0xA5, /* FAN 6 Duty Cycle, be used to control */
132 0xA6 /* FAN 7 Duty Cycle, be used to control */
133 };
134 #define W83792D_REG_BANK 0x4E
135 #define W83792D_REG_TEMP2_CONFIG 0xC2
136 #define W83792D_REG_TEMP3_CONFIG 0xCA
137
138 static const u8 W83792D_REG_TEMP1[3] = {
139 0x27, /* TEMP 1 in DataSheet */
140 0x39, /* TEMP 1 Over in DataSheet */
141 0x3A, /* TEMP 1 Hyst in DataSheet */
142 };
143
144 static const u8 W83792D_REG_TEMP_ADD[2][6] = {
145 { 0xC0, /* TEMP 2 in DataSheet */
146 0xC1, /* TEMP 2(0.5 deg) in DataSheet */
147 0xC5, /* TEMP 2 Over High part in DataSheet */
148 0xC6, /* TEMP 2 Over Low part in DataSheet */
149 0xC3, /* TEMP 2 Thyst High part in DataSheet */
150 0xC4 }, /* TEMP 2 Thyst Low part in DataSheet */
151 { 0xC8, /* TEMP 3 in DataSheet */
152 0xC9, /* TEMP 3(0.5 deg) in DataSheet */
153 0xCD, /* TEMP 3 Over High part in DataSheet */
154 0xCE, /* TEMP 3 Over Low part in DataSheet */
155 0xCB, /* TEMP 3 Thyst High part in DataSheet */
156 0xCC } /* TEMP 3 Thyst Low part in DataSheet */
157 };
158
159 static const u8 W83792D_REG_THERMAL[3] = {
160 0x85, /* SmartFanI: Fan1 target value */
161 0x86, /* SmartFanI: Fan2 target value */
162 0x96 /* SmartFanI: Fan3 target value */
163 };
164
165 static const u8 W83792D_REG_TOLERANCE[3] = {
166 0x87, /* (bit3-0)SmartFan Fan1 tolerance */
167 0x87, /* (bit7-4)SmartFan Fan2 tolerance */
168 0x97 /* (bit3-0)SmartFan Fan3 tolerance */
169 };
170
171 static const u8 W83792D_REG_POINTS[3][4] = {
172 { 0x85, /* SmartFanII: Fan1 temp point 1 */
173 0xE3, /* SmartFanII: Fan1 temp point 2 */
174 0xE4, /* SmartFanII: Fan1 temp point 3 */
175 0xE5 }, /* SmartFanII: Fan1 temp point 4 */
176 { 0x86, /* SmartFanII: Fan2 temp point 1 */
177 0xE6, /* SmartFanII: Fan2 temp point 2 */
178 0xE7, /* SmartFanII: Fan2 temp point 3 */
179 0xE8 }, /* SmartFanII: Fan2 temp point 4 */
180 { 0x96, /* SmartFanII: Fan3 temp point 1 */
181 0xE9, /* SmartFanII: Fan3 temp point 2 */
182 0xEA, /* SmartFanII: Fan3 temp point 3 */
183 0xEB } /* SmartFanII: Fan3 temp point 4 */
184 };
185
186 static const u8 W83792D_REG_LEVELS[3][4] = {
187 { 0x88, /* (bit3-0) SmartFanII: Fan1 Non-Stop */
188 0x88, /* (bit7-4) SmartFanII: Fan1 Level 1 */
189 0xE0, /* (bit7-4) SmartFanII: Fan1 Level 2 */
190 0xE0 }, /* (bit3-0) SmartFanII: Fan1 Level 3 */
191 { 0x89, /* (bit3-0) SmartFanII: Fan2 Non-Stop */
192 0x89, /* (bit7-4) SmartFanII: Fan2 Level 1 */
193 0xE1, /* (bit7-4) SmartFanII: Fan2 Level 2 */
194 0xE1 }, /* (bit3-0) SmartFanII: Fan2 Level 3 */
195 { 0x98, /* (bit3-0) SmartFanII: Fan3 Non-Stop */
196 0x98, /* (bit7-4) SmartFanII: Fan3 Level 1 */
197 0xE2, /* (bit7-4) SmartFanII: Fan3 Level 2 */
198 0xE2 } /* (bit3-0) SmartFanII: Fan3 Level 3 */
199 };
200
201 #define W83792D_REG_GPIO_EN 0x1A
202 #define W83792D_REG_CONFIG 0x40
203 #define W83792D_REG_VID_FANDIV 0x47
204 #define W83792D_REG_CHIPID 0x49
205 #define W83792D_REG_WCHIPID 0x58
206 #define W83792D_REG_CHIPMAN 0x4F
207 #define W83792D_REG_PIN 0x4B
208 #define W83792D_REG_I2C_SUBADDR 0x4A
209
210 #define W83792D_REG_ALARM1 0xA9 /* realtime status register1 */
211 #define W83792D_REG_ALARM2 0xAA /* realtime status register2 */
212 #define W83792D_REG_ALARM3 0xAB /* realtime status register3 */
213 #define W83792D_REG_CHASSIS 0x42 /* Bit 5: Case Open status bit */
214 #define W83792D_REG_CHASSIS_CLR 0x44 /* Bit 7: Case Open CLR_CHS/Reset bit */
215
216 /* control in0/in1 's limit modifiability */
217 #define W83792D_REG_VID_IN_B 0x17
218
219 #define W83792D_REG_VBAT 0x5D
220 #define W83792D_REG_I2C_ADDR 0x48
221
222 /*
223 * Conversions. Rounding and limit checking is only done on the TO_REG
224 * variants. Note that you should be a bit careful with which arguments
225 * these macros are called: arguments may be evaluated more than once.
226 * Fixing this is just not worth it.
227 */
228 #define IN_FROM_REG(nr, val) (((nr) <= 1) ? ((val) * 2) : \
229 ((((nr) == 6) || ((nr) == 7)) ? ((val) * 6) : ((val) * 4)))
230 #define IN_TO_REG(nr, val) (((nr) <= 1) ? ((val) / 2) : \
231 ((((nr) == 6) || ((nr) == 7)) ? ((val) / 6) : ((val) / 4)))
232
233 static inline u8
234 FAN_TO_REG(long rpm, int div)
235 {
236 if (rpm == 0)
237 return 255;
238 rpm = clamp_val(rpm, 1, 1000000);
239 return clamp_val((1350000 + rpm * div / 2) / (rpm * div), 1, 254);
240 }
241
242 #define FAN_FROM_REG(val, div) ((val) == 0 ? -1 : \
243 ((val) == 255 ? 0 : \
244 1350000 / ((val) * (div))))
245
246 /* for temp1 */
247 #define TEMP1_TO_REG(val) (clamp_val(((val) < 0 ? (val) + 0x100 * 1000 \
248 : (val)) / 1000, 0, 0xff))
249 #define TEMP1_FROM_REG(val) (((val) & 0x80 ? (val)-0x100 : (val)) * 1000)
250 /* for temp2 and temp3, because they need additional resolution */
251 #define TEMP_ADD_FROM_REG(val1, val2) \
252 ((((val1) & 0x80 ? (val1)-0x100 \
253 : (val1)) * 1000) + ((val2 & 0x80) ? 500 : 0))
254 #define TEMP_ADD_TO_REG_HIGH(val) \
255 (clamp_val(((val) < 0 ? (val) + 0x100 * 1000 : (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 = clamp_val(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 thermal_cruise[3]; /* Smart FanI: Fan1,2,3 target value */
300 u8 tolerance[3]; /* Fan1,2,3 tolerance(Smart Fan I/II) */
301 u8 sf2_points[3][4]; /* Smart FanII: Fan1,2,3 temperature points */
302 u8 sf2_levels[3][4]; /* Smart FanII: Fan1,2,3 duty cycle levels */
303 };
304
305 static int w83792d_probe(struct i2c_client *client,
306 const struct i2c_device_id *id);
307 static int w83792d_detect(struct i2c_client *client,
308 struct i2c_board_info *info);
309 static int w83792d_remove(struct i2c_client *client);
310 static struct w83792d_data *w83792d_update_device(struct device *dev);
311
312 #ifdef DEBUG
313 static void w83792d_print_debug(struct w83792d_data *data, struct device *dev);
314 #endif
315
316 static void w83792d_init_client(struct i2c_client *client);
317
318 static const struct i2c_device_id w83792d_id[] = {
319 { "w83792d", 0 },
320 { }
321 };
322 MODULE_DEVICE_TABLE(i2c, w83792d_id);
323
324 static struct i2c_driver w83792d_driver = {
325 .class = I2C_CLASS_HWMON,
326 .driver = {
327 .name = "w83792d",
328 },
329 .probe = w83792d_probe,
330 .remove = w83792d_remove,
331 .id_table = w83792d_id,
332 .detect = w83792d_detect,
333 .address_list = normal_i2c,
334 };
335
336 static inline long in_count_from_reg(int nr, struct w83792d_data *data)
337 {
338 /* in7 and in8 do not have low bits, but the formula still works */
339 return (data->in[nr] << 2) | ((data->low_bits >> (2 * nr)) & 0x03);
340 }
341
342 /*
343 * The SMBus locks itself. The Winbond W83792D chip has a bank register,
344 * but the driver only accesses registers in bank 0, so we don't have
345 * to switch banks and lock access between switches.
346 */
347 static inline int w83792d_read_value(struct i2c_client *client, u8 reg)
348 {
349 return i2c_smbus_read_byte_data(client, reg);
350 }
351
352 static inline int
353 w83792d_write_value(struct i2c_client *client, u8 reg, u8 value)
354 {
355 return i2c_smbus_write_byte_data(client, reg, value);
356 }
357
358 /* following are the sysfs callback functions */
359 static ssize_t show_in(struct device *dev, struct device_attribute *attr,
360 char *buf)
361 {
362 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
363 int nr = sensor_attr->index;
364 struct w83792d_data *data = w83792d_update_device(dev);
365 return sprintf(buf, "%ld\n",
366 IN_FROM_REG(nr, in_count_from_reg(nr, data)));
367 }
368
369 #define show_in_reg(reg) \
370 static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
371 char *buf) \
372 { \
373 struct sensor_device_attribute *sensor_attr \
374 = to_sensor_dev_attr(attr); \
375 int nr = sensor_attr->index; \
376 struct w83792d_data *data = w83792d_update_device(dev); \
377 return sprintf(buf, "%ld\n", \
378 (long)(IN_FROM_REG(nr, data->reg[nr]) * 4)); \
379 }
380
381 show_in_reg(in_min);
382 show_in_reg(in_max);
383
384 #define store_in_reg(REG, reg) \
385 static ssize_t store_in_##reg(struct device *dev, \
386 struct device_attribute *attr, \
387 const char *buf, size_t count) \
388 { \
389 struct sensor_device_attribute *sensor_attr \
390 = to_sensor_dev_attr(attr); \
391 int nr = sensor_attr->index; \
392 struct i2c_client *client = to_i2c_client(dev); \
393 struct w83792d_data *data = i2c_get_clientdata(client); \
394 unsigned long val; \
395 int err = kstrtoul(buf, 10, &val); \
396 if (err) \
397 return err; \
398 mutex_lock(&data->update_lock); \
399 data->in_##reg[nr] = clamp_val(IN_TO_REG(nr, val) / 4, 0, 255); \
400 w83792d_write_value(client, W83792D_REG_IN_##REG[nr], \
401 data->in_##reg[nr]); \
402 mutex_unlock(&data->update_lock); \
403 \
404 return count; \
405 }
406 store_in_reg(MIN, min);
407 store_in_reg(MAX, max);
408
409 #define show_fan_reg(reg) \
410 static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
411 char *buf) \
412 { \
413 struct sensor_device_attribute *sensor_attr \
414 = to_sensor_dev_attr(attr); \
415 int nr = sensor_attr->index - 1; \
416 struct w83792d_data *data = w83792d_update_device(dev); \
417 return sprintf(buf, "%d\n", \
418 FAN_FROM_REG(data->reg[nr], DIV_FROM_REG(data->fan_div[nr]))); \
419 }
420
421 show_fan_reg(fan);
422 show_fan_reg(fan_min);
423
424 static ssize_t
425 store_fan_min(struct device *dev, struct device_attribute *attr,
426 const char *buf, size_t count)
427 {
428 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
429 int nr = sensor_attr->index - 1;
430 struct i2c_client *client = to_i2c_client(dev);
431 struct w83792d_data *data = i2c_get_clientdata(client);
432 unsigned long val;
433 int err;
434
435 err = kstrtoul(buf, 10, &val);
436 if (err)
437 return err;
438
439 mutex_lock(&data->update_lock);
440 data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
441 w83792d_write_value(client, W83792D_REG_FAN_MIN[nr],
442 data->fan_min[nr]);
443 mutex_unlock(&data->update_lock);
444
445 return count;
446 }
447
448 static ssize_t
449 show_fan_div(struct device *dev, struct device_attribute *attr,
450 char *buf)
451 {
452 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
453 int nr = sensor_attr->index;
454 struct w83792d_data *data = w83792d_update_device(dev);
455 return sprintf(buf, "%u\n", DIV_FROM_REG(data->fan_div[nr - 1]));
456 }
457
458 /*
459 * Note: we save and restore the fan minimum here, because its value is
460 * determined in part by the fan divisor. This follows the principle of
461 * least surprise; the user doesn't expect the fan minimum to change just
462 * because the divisor changed.
463 */
464 static ssize_t
465 store_fan_div(struct device *dev, struct device_attribute *attr,
466 const char *buf, size_t count)
467 {
468 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
469 int nr = sensor_attr->index - 1;
470 struct i2c_client *client = to_i2c_client(dev);
471 struct w83792d_data *data = i2c_get_clientdata(client);
472 unsigned long min;
473 /*u8 reg;*/
474 u8 fan_div_reg = 0;
475 u8 tmp_fan_div;
476 unsigned long val;
477 int err;
478
479 err = kstrtoul(buf, 10, &val);
480 if (err)
481 return err;
482
483 /* Save fan_min */
484 mutex_lock(&data->update_lock);
485 min = FAN_FROM_REG(data->fan_min[nr],
486 DIV_FROM_REG(data->fan_div[nr]));
487
488 data->fan_div[nr] = DIV_TO_REG(val);
489
490 fan_div_reg = w83792d_read_value(client, W83792D_REG_FAN_DIV[nr >> 1]);
491 fan_div_reg &= (nr & 0x01) ? 0x8f : 0xf8;
492 tmp_fan_div = (nr & 0x01) ? (((data->fan_div[nr]) << 4) & 0x70)
493 : ((data->fan_div[nr]) & 0x07);
494 w83792d_write_value(client, W83792D_REG_FAN_DIV[nr >> 1],
495 fan_div_reg | tmp_fan_div);
496
497 /* Restore fan_min */
498 data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
499 w83792d_write_value(client, W83792D_REG_FAN_MIN[nr], data->fan_min[nr]);
500 mutex_unlock(&data->update_lock);
501
502 return count;
503 }
504
505 /* read/write the temperature1, includes measured value and limits */
506
507 static ssize_t show_temp1(struct device *dev, struct device_attribute *attr,
508 char *buf)
509 {
510 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
511 int nr = sensor_attr->index;
512 struct w83792d_data *data = w83792d_update_device(dev);
513 return sprintf(buf, "%d\n", TEMP1_FROM_REG(data->temp1[nr]));
514 }
515
516 static ssize_t store_temp1(struct device *dev, struct device_attribute *attr,
517 const char *buf, size_t count)
518 {
519 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
520 int nr = sensor_attr->index;
521 struct i2c_client *client = to_i2c_client(dev);
522 struct w83792d_data *data = i2c_get_clientdata(client);
523 long val;
524 int err;
525
526 err = kstrtol(buf, 10, &val);
527 if (err)
528 return err;
529
530 mutex_lock(&data->update_lock);
531 data->temp1[nr] = TEMP1_TO_REG(val);
532 w83792d_write_value(client, W83792D_REG_TEMP1[nr],
533 data->temp1[nr]);
534 mutex_unlock(&data->update_lock);
535
536 return count;
537 }
538
539 /* read/write the temperature2-3, includes measured value and limits */
540
541 static ssize_t show_temp23(struct device *dev, struct device_attribute *attr,
542 char *buf)
543 {
544 struct sensor_device_attribute_2 *sensor_attr
545 = to_sensor_dev_attr_2(attr);
546 int nr = sensor_attr->nr;
547 int index = sensor_attr->index;
548 struct w83792d_data *data = w83792d_update_device(dev);
549 return sprintf(buf, "%ld\n",
550 (long)TEMP_ADD_FROM_REG(data->temp_add[nr][index],
551 data->temp_add[nr][index+1]));
552 }
553
554 static ssize_t store_temp23(struct device *dev, struct device_attribute *attr,
555 const char *buf, size_t count)
556 {
557 struct sensor_device_attribute_2 *sensor_attr
558 = to_sensor_dev_attr_2(attr);
559 int nr = sensor_attr->nr;
560 int index = sensor_attr->index;
561 struct i2c_client *client = to_i2c_client(dev);
562 struct w83792d_data *data = i2c_get_clientdata(client);
563 long val;
564 int err;
565
566 err = kstrtol(buf, 10, &val);
567 if (err)
568 return err;
569
570 mutex_lock(&data->update_lock);
571 data->temp_add[nr][index] = TEMP_ADD_TO_REG_HIGH(val);
572 data->temp_add[nr][index+1] = TEMP_ADD_TO_REG_LOW(val);
573 w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index],
574 data->temp_add[nr][index]);
575 w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index+1],
576 data->temp_add[nr][index+1]);
577 mutex_unlock(&data->update_lock);
578
579 return count;
580 }
581
582 /* get realtime status of all sensors items: voltage, temp, fan */
583 static ssize_t
584 show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf)
585 {
586 struct w83792d_data *data = w83792d_update_device(dev);
587 return sprintf(buf, "%d\n", data->alarms);
588 }
589
590 static ssize_t show_alarm(struct device *dev,
591 struct device_attribute *attr, char *buf)
592 {
593 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
594 int nr = sensor_attr->index;
595 struct w83792d_data *data = w83792d_update_device(dev);
596 return sprintf(buf, "%d\n", (data->alarms >> nr) & 1);
597 }
598
599 static ssize_t
600 show_pwm(struct device *dev, struct device_attribute *attr,
601 char *buf)
602 {
603 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
604 int nr = sensor_attr->index;
605 struct w83792d_data *data = w83792d_update_device(dev);
606 return sprintf(buf, "%d\n", (data->pwm[nr] & 0x0f) << 4);
607 }
608
609 static ssize_t
610 show_pwmenable(struct device *dev, struct device_attribute *attr,
611 char *buf)
612 {
613 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
614 int nr = sensor_attr->index - 1;
615 struct w83792d_data *data = w83792d_update_device(dev);
616 long pwm_enable_tmp = 1;
617
618 switch (data->pwmenable[nr]) {
619 case 0:
620 pwm_enable_tmp = 1; /* manual mode */
621 break;
622 case 1:
623 pwm_enable_tmp = 3; /*thermal cruise/Smart Fan I */
624 break;
625 case 2:
626 pwm_enable_tmp = 2; /* Smart Fan II */
627 break;
628 }
629
630 return sprintf(buf, "%ld\n", pwm_enable_tmp);
631 }
632
633 static ssize_t
634 store_pwm(struct device *dev, struct device_attribute *attr,
635 const char *buf, size_t count)
636 {
637 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
638 int nr = sensor_attr->index;
639 struct i2c_client *client = to_i2c_client(dev);
640 struct w83792d_data *data = i2c_get_clientdata(client);
641 unsigned long val;
642 int err;
643
644 err = kstrtoul(buf, 10, &val);
645 if (err)
646 return err;
647 val = clamp_val(val, 0, 255) >> 4;
648
649 mutex_lock(&data->update_lock);
650 val |= w83792d_read_value(client, W83792D_REG_PWM[nr]) & 0xf0;
651 data->pwm[nr] = val;
652 w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]);
653 mutex_unlock(&data->update_lock);
654
655 return count;
656 }
657
658 static ssize_t
659 store_pwmenable(struct device *dev, struct device_attribute *attr,
660 const char *buf, size_t count)
661 {
662 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
663 int nr = sensor_attr->index - 1;
664 struct i2c_client *client = to_i2c_client(dev);
665 struct w83792d_data *data = i2c_get_clientdata(client);
666 u8 fan_cfg_tmp, cfg1_tmp, cfg2_tmp, cfg3_tmp, cfg4_tmp;
667 unsigned long val;
668 int err;
669
670 err = kstrtoul(buf, 10, &val);
671 if (err)
672 return err;
673
674 if (val < 1 || val > 3)
675 return -EINVAL;
676
677 mutex_lock(&data->update_lock);
678 switch (val) {
679 case 1:
680 data->pwmenable[nr] = 0; /* manual mode */
681 break;
682 case 2:
683 data->pwmenable[nr] = 2; /* Smart Fan II */
684 break;
685 case 3:
686 data->pwmenable[nr] = 1; /* thermal cruise/Smart Fan I */
687 break;
688 }
689 cfg1_tmp = data->pwmenable[0];
690 cfg2_tmp = (data->pwmenable[1]) << 2;
691 cfg3_tmp = (data->pwmenable[2]) << 4;
692 cfg4_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG) & 0xc0;
693 fan_cfg_tmp = ((cfg4_tmp | cfg3_tmp) | cfg2_tmp) | cfg1_tmp;
694 w83792d_write_value(client, W83792D_REG_FAN_CFG, fan_cfg_tmp);
695 mutex_unlock(&data->update_lock);
696
697 return count;
698 }
699
700 static ssize_t
701 show_pwm_mode(struct device *dev, struct device_attribute *attr,
702 char *buf)
703 {
704 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
705 int nr = sensor_attr->index;
706 struct w83792d_data *data = w83792d_update_device(dev);
707 return sprintf(buf, "%d\n", data->pwm[nr] >> 7);
708 }
709
710 static ssize_t
711 store_pwm_mode(struct device *dev, struct device_attribute *attr,
712 const char *buf, size_t count)
713 {
714 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
715 int nr = sensor_attr->index;
716 struct i2c_client *client = to_i2c_client(dev);
717 struct w83792d_data *data = i2c_get_clientdata(client);
718 unsigned long val;
719 int err;
720
721 err = kstrtoul(buf, 10, &val);
722 if (err)
723 return err;
724 if (val > 1)
725 return -EINVAL;
726
727 mutex_lock(&data->update_lock);
728 data->pwm[nr] = w83792d_read_value(client, W83792D_REG_PWM[nr]);
729 if (val) { /* PWM mode */
730 data->pwm[nr] |= 0x80;
731 } else { /* DC mode */
732 data->pwm[nr] &= 0x7f;
733 }
734 w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]);
735 mutex_unlock(&data->update_lock);
736
737 return count;
738 }
739
740 static ssize_t
741 show_chassis_clear(struct device *dev, struct device_attribute *attr,
742 char *buf)
743 {
744 struct w83792d_data *data = w83792d_update_device(dev);
745 return sprintf(buf, "%d\n", data->chassis);
746 }
747
748 static ssize_t
749 store_chassis_clear(struct device *dev, struct device_attribute *attr,
750 const char *buf, size_t count)
751 {
752 struct i2c_client *client = to_i2c_client(dev);
753 struct w83792d_data *data = i2c_get_clientdata(client);
754 unsigned long val;
755 u8 reg;
756
757 if (kstrtoul(buf, 10, &val) || val != 0)
758 return -EINVAL;
759
760 mutex_lock(&data->update_lock);
761 reg = w83792d_read_value(client, W83792D_REG_CHASSIS_CLR);
762 w83792d_write_value(client, W83792D_REG_CHASSIS_CLR, reg | 0x80);
763 data->valid = 0; /* Force cache refresh */
764 mutex_unlock(&data->update_lock);
765
766 return count;
767 }
768
769 /* For Smart Fan I / Thermal Cruise */
770 static ssize_t
771 show_thermal_cruise(struct device *dev, struct device_attribute *attr,
772 char *buf)
773 {
774 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
775 int nr = sensor_attr->index;
776 struct w83792d_data *data = w83792d_update_device(dev);
777 return sprintf(buf, "%ld\n", (long)data->thermal_cruise[nr-1]);
778 }
779
780 static ssize_t
781 store_thermal_cruise(struct device *dev, struct device_attribute *attr,
782 const char *buf, size_t count)
783 {
784 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
785 int nr = sensor_attr->index - 1;
786 struct i2c_client *client = to_i2c_client(dev);
787 struct w83792d_data *data = i2c_get_clientdata(client);
788 u8 target_tmp = 0, target_mask = 0;
789 unsigned long val;
790 int err;
791
792 err = kstrtoul(buf, 10, &val);
793 if (err)
794 return err;
795
796 target_tmp = val;
797 target_tmp = target_tmp & 0x7f;
798 mutex_lock(&data->update_lock);
799 target_mask = w83792d_read_value(client,
800 W83792D_REG_THERMAL[nr]) & 0x80;
801 data->thermal_cruise[nr] = clamp_val(target_tmp, 0, 255);
802 w83792d_write_value(client, W83792D_REG_THERMAL[nr],
803 (data->thermal_cruise[nr]) | target_mask);
804 mutex_unlock(&data->update_lock);
805
806 return count;
807 }
808
809 /* For Smart Fan I/Thermal Cruise and Smart Fan II */
810 static ssize_t
811 show_tolerance(struct device *dev, struct device_attribute *attr,
812 char *buf)
813 {
814 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
815 int nr = sensor_attr->index;
816 struct w83792d_data *data = w83792d_update_device(dev);
817 return sprintf(buf, "%ld\n", (long)data->tolerance[nr-1]);
818 }
819
820 static ssize_t
821 store_tolerance(struct device *dev, struct device_attribute *attr,
822 const char *buf, size_t count)
823 {
824 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
825 int nr = sensor_attr->index - 1;
826 struct i2c_client *client = to_i2c_client(dev);
827 struct w83792d_data *data = i2c_get_clientdata(client);
828 u8 tol_tmp, tol_mask;
829 unsigned long val;
830 int err;
831
832 err = kstrtoul(buf, 10, &val);
833 if (err)
834 return err;
835
836 mutex_lock(&data->update_lock);
837 tol_mask = w83792d_read_value(client,
838 W83792D_REG_TOLERANCE[nr]) & ((nr == 1) ? 0x0f : 0xf0);
839 tol_tmp = clamp_val(val, 0, 15);
840 tol_tmp &= 0x0f;
841 data->tolerance[nr] = tol_tmp;
842 if (nr == 1)
843 tol_tmp <<= 4;
844 w83792d_write_value(client, W83792D_REG_TOLERANCE[nr],
845 tol_mask | tol_tmp);
846 mutex_unlock(&data->update_lock);
847
848 return count;
849 }
850
851 /* For Smart Fan II */
852 static ssize_t
853 show_sf2_point(struct device *dev, struct device_attribute *attr,
854 char *buf)
855 {
856 struct sensor_device_attribute_2 *sensor_attr
857 = to_sensor_dev_attr_2(attr);
858 int nr = sensor_attr->nr;
859 int index = sensor_attr->index;
860 struct w83792d_data *data = w83792d_update_device(dev);
861 return sprintf(buf, "%ld\n", (long)data->sf2_points[index-1][nr-1]);
862 }
863
864 static ssize_t
865 store_sf2_point(struct device *dev, struct device_attribute *attr,
866 const char *buf, size_t count)
867 {
868 struct sensor_device_attribute_2 *sensor_attr
869 = to_sensor_dev_attr_2(attr);
870 int nr = sensor_attr->nr - 1;
871 int index = sensor_attr->index - 1;
872 struct i2c_client *client = to_i2c_client(dev);
873 struct w83792d_data *data = i2c_get_clientdata(client);
874 u8 mask_tmp = 0;
875 unsigned long val;
876 int err;
877
878 err = kstrtoul(buf, 10, &val);
879 if (err)
880 return err;
881
882 mutex_lock(&data->update_lock);
883 data->sf2_points[index][nr] = clamp_val(val, 0, 127);
884 mask_tmp = w83792d_read_value(client,
885 W83792D_REG_POINTS[index][nr]) & 0x80;
886 w83792d_write_value(client, W83792D_REG_POINTS[index][nr],
887 mask_tmp|data->sf2_points[index][nr]);
888 mutex_unlock(&data->update_lock);
889
890 return count;
891 }
892
893 static ssize_t
894 show_sf2_level(struct device *dev, struct device_attribute *attr,
895 char *buf)
896 {
897 struct sensor_device_attribute_2 *sensor_attr
898 = to_sensor_dev_attr_2(attr);
899 int nr = sensor_attr->nr;
900 int index = sensor_attr->index;
901 struct w83792d_data *data = w83792d_update_device(dev);
902 return sprintf(buf, "%d\n",
903 (((data->sf2_levels[index-1][nr]) * 100) / 15));
904 }
905
906 static ssize_t
907 store_sf2_level(struct device *dev, struct device_attribute *attr,
908 const char *buf, size_t count)
909 {
910 struct sensor_device_attribute_2 *sensor_attr
911 = to_sensor_dev_attr_2(attr);
912 int nr = sensor_attr->nr;
913 int index = sensor_attr->index - 1;
914 struct i2c_client *client = to_i2c_client(dev);
915 struct w83792d_data *data = i2c_get_clientdata(client);
916 u8 mask_tmp = 0, level_tmp = 0;
917 unsigned long val;
918 int err;
919
920 err = kstrtoul(buf, 10, &val);
921 if (err)
922 return err;
923
924 mutex_lock(&data->update_lock);
925 data->sf2_levels[index][nr] = clamp_val((val * 15) / 100, 0, 15);
926 mask_tmp = w83792d_read_value(client, W83792D_REG_LEVELS[index][nr])
927 & ((nr == 3) ? 0xf0 : 0x0f);
928 if (nr == 3)
929 level_tmp = data->sf2_levels[index][nr];
930 else
931 level_tmp = data->sf2_levels[index][nr] << 4;
932 w83792d_write_value(client, W83792D_REG_LEVELS[index][nr],
933 level_tmp | mask_tmp);
934 mutex_unlock(&data->update_lock);
935
936 return count;
937 }
938
939
940 static int
941 w83792d_detect_subclients(struct i2c_client *new_client)
942 {
943 int i, id, err;
944 int address = new_client->addr;
945 u8 val;
946 struct i2c_adapter *adapter = new_client->adapter;
947 struct w83792d_data *data = i2c_get_clientdata(new_client);
948
949 id = i2c_adapter_id(adapter);
950 if (force_subclients[0] == id && force_subclients[1] == address) {
951 for (i = 2; i <= 3; i++) {
952 if (force_subclients[i] < 0x48 ||
953 force_subclients[i] > 0x4f) {
954 dev_err(&new_client->dev,
955 "invalid subclient address %d; must be 0x48-0x4f\n",
956 force_subclients[i]);
957 err = -ENODEV;
958 goto ERROR_SC_0;
959 }
960 }
961 w83792d_write_value(new_client, W83792D_REG_I2C_SUBADDR,
962 (force_subclients[2] & 0x07) |
963 ((force_subclients[3] & 0x07) << 4));
964 }
965
966 val = w83792d_read_value(new_client, W83792D_REG_I2C_SUBADDR);
967 if (!(val & 0x08))
968 data->lm75[0] = i2c_new_dummy(adapter, 0x48 + (val & 0x7));
969 if (!(val & 0x80)) {
970 if ((data->lm75[0] != NULL) &&
971 ((val & 0x7) == ((val >> 4) & 0x7))) {
972 dev_err(&new_client->dev,
973 "duplicate addresses 0x%x, use force_subclient\n",
974 data->lm75[0]->addr);
975 err = -ENODEV;
976 goto ERROR_SC_1;
977 }
978 data->lm75[1] = i2c_new_dummy(adapter,
979 0x48 + ((val >> 4) & 0x7));
980 }
981
982 return 0;
983
984 /* Undo inits in case of errors */
985
986 ERROR_SC_1:
987 if (data->lm75[0] != NULL)
988 i2c_unregister_device(data->lm75[0]);
989 ERROR_SC_0:
990 return err;
991 }
992
993 static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0);
994 static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1);
995 static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2);
996 static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3);
997 static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 4);
998 static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 5);
999 static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 6);
1000 static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 7);
1001 static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_in, NULL, 8);
1002 static SENSOR_DEVICE_ATTR(in0_min, S_IWUSR | S_IRUGO,
1003 show_in_min, store_in_min, 0);
1004 static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO,
1005 show_in_min, store_in_min, 1);
1006 static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO,
1007 show_in_min, store_in_min, 2);
1008 static SENSOR_DEVICE_ATTR(in3_min, S_IWUSR | S_IRUGO,
1009 show_in_min, store_in_min, 3);
1010 static SENSOR_DEVICE_ATTR(in4_min, S_IWUSR | S_IRUGO,
1011 show_in_min, store_in_min, 4);
1012 static SENSOR_DEVICE_ATTR(in5_min, S_IWUSR | S_IRUGO,
1013 show_in_min, store_in_min, 5);
1014 static SENSOR_DEVICE_ATTR(in6_min, S_IWUSR | S_IRUGO,
1015 show_in_min, store_in_min, 6);
1016 static SENSOR_DEVICE_ATTR(in7_min, S_IWUSR | S_IRUGO,
1017 show_in_min, store_in_min, 7);
1018 static SENSOR_DEVICE_ATTR(in8_min, S_IWUSR | S_IRUGO,
1019 show_in_min, store_in_min, 8);
1020 static SENSOR_DEVICE_ATTR(in0_max, S_IWUSR | S_IRUGO,
1021 show_in_max, store_in_max, 0);
1022 static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO,
1023 show_in_max, store_in_max, 1);
1024 static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO,
1025 show_in_max, store_in_max, 2);
1026 static SENSOR_DEVICE_ATTR(in3_max, S_IWUSR | S_IRUGO,
1027 show_in_max, store_in_max, 3);
1028 static SENSOR_DEVICE_ATTR(in4_max, S_IWUSR | S_IRUGO,
1029 show_in_max, store_in_max, 4);
1030 static SENSOR_DEVICE_ATTR(in5_max, S_IWUSR | S_IRUGO,
1031 show_in_max, store_in_max, 5);
1032 static SENSOR_DEVICE_ATTR(in6_max, S_IWUSR | S_IRUGO,
1033 show_in_max, store_in_max, 6);
1034 static SENSOR_DEVICE_ATTR(in7_max, S_IWUSR | S_IRUGO,
1035 show_in_max, store_in_max, 7);
1036 static SENSOR_DEVICE_ATTR(in8_max, S_IWUSR | S_IRUGO,
1037 show_in_max, store_in_max, 8);
1038 static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp1, NULL, 0, 0);
1039 static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp23, NULL, 0, 0);
1040 static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp23, NULL, 1, 0);
1041 static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR,
1042 show_temp1, store_temp1, 0, 1);
1043 static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp23,
1044 store_temp23, 0, 2);
1045 static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp23,
1046 store_temp23, 1, 2);
1047 static SENSOR_DEVICE_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR,
1048 show_temp1, store_temp1, 0, 2);
1049 static SENSOR_DEVICE_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR,
1050 show_temp23, store_temp23, 0, 4);
1051 static SENSOR_DEVICE_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR,
1052 show_temp23, store_temp23, 1, 4);
1053 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
1054 static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
1055 static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
1056 static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 2);
1057 static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 3);
1058 static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 4);
1059 static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 5);
1060 static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 6);
1061 static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 7);
1062 static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 8);
1063 static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 9);
1064 static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 10);
1065 static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 11);
1066 static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 12);
1067 static SENSOR_DEVICE_ATTR(fan7_alarm, S_IRUGO, show_alarm, NULL, 15);
1068 static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 19);
1069 static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 20);
1070 static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 21);
1071 static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 22);
1072 static SENSOR_DEVICE_ATTR(fan6_alarm, S_IRUGO, show_alarm, NULL, 23);
1073 static DEVICE_ATTR(intrusion0_alarm, S_IRUGO | S_IWUSR,
1074 show_chassis_clear, store_chassis_clear);
1075 static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0);
1076 static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1);
1077 static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2);
1078 static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO,
1079 show_pwmenable, store_pwmenable, 1);
1080 static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO,
1081 show_pwmenable, store_pwmenable, 2);
1082 static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO,
1083 show_pwmenable, store_pwmenable, 3);
1084 static SENSOR_DEVICE_ATTR(pwm1_mode, S_IWUSR | S_IRUGO,
1085 show_pwm_mode, store_pwm_mode, 0);
1086 static SENSOR_DEVICE_ATTR(pwm2_mode, S_IWUSR | S_IRUGO,
1087 show_pwm_mode, store_pwm_mode, 1);
1088 static SENSOR_DEVICE_ATTR(pwm3_mode, S_IWUSR | S_IRUGO,
1089 show_pwm_mode, store_pwm_mode, 2);
1090 static SENSOR_DEVICE_ATTR(tolerance1, S_IWUSR | S_IRUGO,
1091 show_tolerance, store_tolerance, 1);
1092 static SENSOR_DEVICE_ATTR(tolerance2, S_IWUSR | S_IRUGO,
1093 show_tolerance, store_tolerance, 2);
1094 static SENSOR_DEVICE_ATTR(tolerance3, S_IWUSR | S_IRUGO,
1095 show_tolerance, store_tolerance, 3);
1096 static SENSOR_DEVICE_ATTR(thermal_cruise1, S_IWUSR | S_IRUGO,
1097 show_thermal_cruise, store_thermal_cruise, 1);
1098 static SENSOR_DEVICE_ATTR(thermal_cruise2, S_IWUSR | S_IRUGO,
1099 show_thermal_cruise, store_thermal_cruise, 2);
1100 static SENSOR_DEVICE_ATTR(thermal_cruise3, S_IWUSR | S_IRUGO,
1101 show_thermal_cruise, store_thermal_cruise, 3);
1102 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan1, S_IRUGO | S_IWUSR,
1103 show_sf2_point, store_sf2_point, 1, 1);
1104 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan1, S_IRUGO | S_IWUSR,
1105 show_sf2_point, store_sf2_point, 2, 1);
1106 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan1, S_IRUGO | S_IWUSR,
1107 show_sf2_point, store_sf2_point, 3, 1);
1108 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan1, S_IRUGO | S_IWUSR,
1109 show_sf2_point, store_sf2_point, 4, 1);
1110 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan2, S_IRUGO | S_IWUSR,
1111 show_sf2_point, store_sf2_point, 1, 2);
1112 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan2, S_IRUGO | S_IWUSR,
1113 show_sf2_point, store_sf2_point, 2, 2);
1114 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan2, S_IRUGO | S_IWUSR,
1115 show_sf2_point, store_sf2_point, 3, 2);
1116 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan2, S_IRUGO | S_IWUSR,
1117 show_sf2_point, store_sf2_point, 4, 2);
1118 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan3, S_IRUGO | S_IWUSR,
1119 show_sf2_point, store_sf2_point, 1, 3);
1120 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan3, S_IRUGO | S_IWUSR,
1121 show_sf2_point, store_sf2_point, 2, 3);
1122 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan3, S_IRUGO | S_IWUSR,
1123 show_sf2_point, store_sf2_point, 3, 3);
1124 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan3, S_IRUGO | S_IWUSR,
1125 show_sf2_point, store_sf2_point, 4, 3);
1126 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan1, S_IRUGO | S_IWUSR,
1127 show_sf2_level, store_sf2_level, 1, 1);
1128 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan1, S_IRUGO | S_IWUSR,
1129 show_sf2_level, store_sf2_level, 2, 1);
1130 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan1, S_IRUGO | S_IWUSR,
1131 show_sf2_level, store_sf2_level, 3, 1);
1132 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan2, S_IRUGO | S_IWUSR,
1133 show_sf2_level, store_sf2_level, 1, 2);
1134 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan2, S_IRUGO | S_IWUSR,
1135 show_sf2_level, store_sf2_level, 2, 2);
1136 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan2, S_IRUGO | S_IWUSR,
1137 show_sf2_level, store_sf2_level, 3, 2);
1138 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan3, S_IRUGO | S_IWUSR,
1139 show_sf2_level, store_sf2_level, 1, 3);
1140 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan3, S_IRUGO | S_IWUSR,
1141 show_sf2_level, store_sf2_level, 2, 3);
1142 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan3, S_IRUGO | S_IWUSR,
1143 show_sf2_level, store_sf2_level, 3, 3);
1144 static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 1);
1145 static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 2);
1146 static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 3);
1147 static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 4);
1148 static SENSOR_DEVICE_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 5);
1149 static SENSOR_DEVICE_ATTR(fan6_input, S_IRUGO, show_fan, NULL, 6);
1150 static SENSOR_DEVICE_ATTR(fan7_input, S_IRUGO, show_fan, NULL, 7);
1151 static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO,
1152 show_fan_min, store_fan_min, 1);
1153 static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO,
1154 show_fan_min, store_fan_min, 2);
1155 static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO,
1156 show_fan_min, store_fan_min, 3);
1157 static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO,
1158 show_fan_min, store_fan_min, 4);
1159 static SENSOR_DEVICE_ATTR(fan5_min, S_IWUSR | S_IRUGO,
1160 show_fan_min, store_fan_min, 5);
1161 static SENSOR_DEVICE_ATTR(fan6_min, S_IWUSR | S_IRUGO,
1162 show_fan_min, store_fan_min, 6);
1163 static SENSOR_DEVICE_ATTR(fan7_min, S_IWUSR | S_IRUGO,
1164 show_fan_min, store_fan_min, 7);
1165 static SENSOR_DEVICE_ATTR(fan1_div, S_IWUSR | S_IRUGO,
1166 show_fan_div, store_fan_div, 1);
1167 static SENSOR_DEVICE_ATTR(fan2_div, S_IWUSR | S_IRUGO,
1168 show_fan_div, store_fan_div, 2);
1169 static SENSOR_DEVICE_ATTR(fan3_div, S_IWUSR | S_IRUGO,
1170 show_fan_div, store_fan_div, 3);
1171 static SENSOR_DEVICE_ATTR(fan4_div, S_IWUSR | S_IRUGO,
1172 show_fan_div, store_fan_div, 4);
1173 static SENSOR_DEVICE_ATTR(fan5_div, S_IWUSR | S_IRUGO,
1174 show_fan_div, store_fan_div, 5);
1175 static SENSOR_DEVICE_ATTR(fan6_div, S_IWUSR | S_IRUGO,
1176 show_fan_div, store_fan_div, 6);
1177 static SENSOR_DEVICE_ATTR(fan7_div, S_IWUSR | S_IRUGO,
1178 show_fan_div, store_fan_div, 7);
1179
1180 static struct attribute *w83792d_attributes_fan[4][5] = {
1181 {
1182 &sensor_dev_attr_fan4_input.dev_attr.attr,
1183 &sensor_dev_attr_fan4_min.dev_attr.attr,
1184 &sensor_dev_attr_fan4_div.dev_attr.attr,
1185 &sensor_dev_attr_fan4_alarm.dev_attr.attr,
1186 NULL
1187 }, {
1188 &sensor_dev_attr_fan5_input.dev_attr.attr,
1189 &sensor_dev_attr_fan5_min.dev_attr.attr,
1190 &sensor_dev_attr_fan5_div.dev_attr.attr,
1191 &sensor_dev_attr_fan5_alarm.dev_attr.attr,
1192 NULL
1193 }, {
1194 &sensor_dev_attr_fan6_input.dev_attr.attr,
1195 &sensor_dev_attr_fan6_min.dev_attr.attr,
1196 &sensor_dev_attr_fan6_div.dev_attr.attr,
1197 &sensor_dev_attr_fan6_alarm.dev_attr.attr,
1198 NULL
1199 }, {
1200 &sensor_dev_attr_fan7_input.dev_attr.attr,
1201 &sensor_dev_attr_fan7_min.dev_attr.attr,
1202 &sensor_dev_attr_fan7_div.dev_attr.attr,
1203 &sensor_dev_attr_fan7_alarm.dev_attr.attr,
1204 NULL
1205 }
1206 };
1207
1208 static const struct attribute_group w83792d_group_fan[4] = {
1209 { .attrs = w83792d_attributes_fan[0] },
1210 { .attrs = w83792d_attributes_fan[1] },
1211 { .attrs = w83792d_attributes_fan[2] },
1212 { .attrs = w83792d_attributes_fan[3] },
1213 };
1214
1215 static struct attribute *w83792d_attributes[] = {
1216 &sensor_dev_attr_in0_input.dev_attr.attr,
1217 &sensor_dev_attr_in0_max.dev_attr.attr,
1218 &sensor_dev_attr_in0_min.dev_attr.attr,
1219 &sensor_dev_attr_in1_input.dev_attr.attr,
1220 &sensor_dev_attr_in1_max.dev_attr.attr,
1221 &sensor_dev_attr_in1_min.dev_attr.attr,
1222 &sensor_dev_attr_in2_input.dev_attr.attr,
1223 &sensor_dev_attr_in2_max.dev_attr.attr,
1224 &sensor_dev_attr_in2_min.dev_attr.attr,
1225 &sensor_dev_attr_in3_input.dev_attr.attr,
1226 &sensor_dev_attr_in3_max.dev_attr.attr,
1227 &sensor_dev_attr_in3_min.dev_attr.attr,
1228 &sensor_dev_attr_in4_input.dev_attr.attr,
1229 &sensor_dev_attr_in4_max.dev_attr.attr,
1230 &sensor_dev_attr_in4_min.dev_attr.attr,
1231 &sensor_dev_attr_in5_input.dev_attr.attr,
1232 &sensor_dev_attr_in5_max.dev_attr.attr,
1233 &sensor_dev_attr_in5_min.dev_attr.attr,
1234 &sensor_dev_attr_in6_input.dev_attr.attr,
1235 &sensor_dev_attr_in6_max.dev_attr.attr,
1236 &sensor_dev_attr_in6_min.dev_attr.attr,
1237 &sensor_dev_attr_in7_input.dev_attr.attr,
1238 &sensor_dev_attr_in7_max.dev_attr.attr,
1239 &sensor_dev_attr_in7_min.dev_attr.attr,
1240 &sensor_dev_attr_in8_input.dev_attr.attr,
1241 &sensor_dev_attr_in8_max.dev_attr.attr,
1242 &sensor_dev_attr_in8_min.dev_attr.attr,
1243 &sensor_dev_attr_in0_alarm.dev_attr.attr,
1244 &sensor_dev_attr_in1_alarm.dev_attr.attr,
1245 &sensor_dev_attr_in2_alarm.dev_attr.attr,
1246 &sensor_dev_attr_in3_alarm.dev_attr.attr,
1247 &sensor_dev_attr_in4_alarm.dev_attr.attr,
1248 &sensor_dev_attr_in5_alarm.dev_attr.attr,
1249 &sensor_dev_attr_in6_alarm.dev_attr.attr,
1250 &sensor_dev_attr_in7_alarm.dev_attr.attr,
1251 &sensor_dev_attr_in8_alarm.dev_attr.attr,
1252 &sensor_dev_attr_temp1_input.dev_attr.attr,
1253 &sensor_dev_attr_temp1_max.dev_attr.attr,
1254 &sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
1255 &sensor_dev_attr_temp2_input.dev_attr.attr,
1256 &sensor_dev_attr_temp2_max.dev_attr.attr,
1257 &sensor_dev_attr_temp2_max_hyst.dev_attr.attr,
1258 &sensor_dev_attr_temp3_input.dev_attr.attr,
1259 &sensor_dev_attr_temp3_max.dev_attr.attr,
1260 &sensor_dev_attr_temp3_max_hyst.dev_attr.attr,
1261 &sensor_dev_attr_temp1_alarm.dev_attr.attr,
1262 &sensor_dev_attr_temp2_alarm.dev_attr.attr,
1263 &sensor_dev_attr_temp3_alarm.dev_attr.attr,
1264 &sensor_dev_attr_pwm1.dev_attr.attr,
1265 &sensor_dev_attr_pwm1_mode.dev_attr.attr,
1266 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
1267 &sensor_dev_attr_pwm2.dev_attr.attr,
1268 &sensor_dev_attr_pwm2_mode.dev_attr.attr,
1269 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
1270 &sensor_dev_attr_pwm3.dev_attr.attr,
1271 &sensor_dev_attr_pwm3_mode.dev_attr.attr,
1272 &sensor_dev_attr_pwm3_enable.dev_attr.attr,
1273 &dev_attr_alarms.attr,
1274 &dev_attr_intrusion0_alarm.attr,
1275 &sensor_dev_attr_tolerance1.dev_attr.attr,
1276 &sensor_dev_attr_thermal_cruise1.dev_attr.attr,
1277 &sensor_dev_attr_tolerance2.dev_attr.attr,
1278 &sensor_dev_attr_thermal_cruise2.dev_attr.attr,
1279 &sensor_dev_attr_tolerance3.dev_attr.attr,
1280 &sensor_dev_attr_thermal_cruise3.dev_attr.attr,
1281 &sensor_dev_attr_sf2_point1_fan1.dev_attr.attr,
1282 &sensor_dev_attr_sf2_point2_fan1.dev_attr.attr,
1283 &sensor_dev_attr_sf2_point3_fan1.dev_attr.attr,
1284 &sensor_dev_attr_sf2_point4_fan1.dev_attr.attr,
1285 &sensor_dev_attr_sf2_point1_fan2.dev_attr.attr,
1286 &sensor_dev_attr_sf2_point2_fan2.dev_attr.attr,
1287 &sensor_dev_attr_sf2_point3_fan2.dev_attr.attr,
1288 &sensor_dev_attr_sf2_point4_fan2.dev_attr.attr,
1289 &sensor_dev_attr_sf2_point1_fan3.dev_attr.attr,
1290 &sensor_dev_attr_sf2_point2_fan3.dev_attr.attr,
1291 &sensor_dev_attr_sf2_point3_fan3.dev_attr.attr,
1292 &sensor_dev_attr_sf2_point4_fan3.dev_attr.attr,
1293 &sensor_dev_attr_sf2_level1_fan1.dev_attr.attr,
1294 &sensor_dev_attr_sf2_level2_fan1.dev_attr.attr,
1295 &sensor_dev_attr_sf2_level3_fan1.dev_attr.attr,
1296 &sensor_dev_attr_sf2_level1_fan2.dev_attr.attr,
1297 &sensor_dev_attr_sf2_level2_fan2.dev_attr.attr,
1298 &sensor_dev_attr_sf2_level3_fan2.dev_attr.attr,
1299 &sensor_dev_attr_sf2_level1_fan3.dev_attr.attr,
1300 &sensor_dev_attr_sf2_level2_fan3.dev_attr.attr,
1301 &sensor_dev_attr_sf2_level3_fan3.dev_attr.attr,
1302 &sensor_dev_attr_fan1_input.dev_attr.attr,
1303 &sensor_dev_attr_fan1_min.dev_attr.attr,
1304 &sensor_dev_attr_fan1_div.dev_attr.attr,
1305 &sensor_dev_attr_fan1_alarm.dev_attr.attr,
1306 &sensor_dev_attr_fan2_input.dev_attr.attr,
1307 &sensor_dev_attr_fan2_min.dev_attr.attr,
1308 &sensor_dev_attr_fan2_div.dev_attr.attr,
1309 &sensor_dev_attr_fan2_alarm.dev_attr.attr,
1310 &sensor_dev_attr_fan3_input.dev_attr.attr,
1311 &sensor_dev_attr_fan3_min.dev_attr.attr,
1312 &sensor_dev_attr_fan3_div.dev_attr.attr,
1313 &sensor_dev_attr_fan3_alarm.dev_attr.attr,
1314 NULL
1315 };
1316
1317 static const struct attribute_group w83792d_group = {
1318 .attrs = w83792d_attributes,
1319 };
1320
1321 /* Return 0 if detection is successful, -ENODEV otherwise */
1322 static int
1323 w83792d_detect(struct i2c_client *client, struct i2c_board_info *info)
1324 {
1325 struct i2c_adapter *adapter = client->adapter;
1326 int val1, val2;
1327 unsigned short address = client->addr;
1328
1329 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
1330 return -ENODEV;
1331
1332 if (w83792d_read_value(client, W83792D_REG_CONFIG) & 0x80)
1333 return -ENODEV;
1334
1335 val1 = w83792d_read_value(client, W83792D_REG_BANK);
1336 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN);
1337 /* Check for Winbond ID if in bank 0 */
1338 if (!(val1 & 0x07)) { /* is Bank0 */
1339 if ((!(val1 & 0x80) && val2 != 0xa3) ||
1340 ((val1 & 0x80) && val2 != 0x5c))
1341 return -ENODEV;
1342 }
1343 /*
1344 * If Winbond chip, address of chip and W83792D_REG_I2C_ADDR
1345 * should match
1346 */
1347 if (w83792d_read_value(client, W83792D_REG_I2C_ADDR) != address)
1348 return -ENODEV;
1349
1350 /* Put it now into bank 0 and Vendor ID High Byte */
1351 w83792d_write_value(client,
1352 W83792D_REG_BANK,
1353 (w83792d_read_value(client,
1354 W83792D_REG_BANK) & 0x78) | 0x80);
1355
1356 /* Determine the chip type. */
1357 val1 = w83792d_read_value(client, W83792D_REG_WCHIPID);
1358 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN);
1359 if (val1 != 0x7a || val2 != 0x5c)
1360 return -ENODEV;
1361
1362 strlcpy(info->type, "w83792d", I2C_NAME_SIZE);
1363
1364 return 0;
1365 }
1366
1367 static int
1368 w83792d_probe(struct i2c_client *client, const struct i2c_device_id *id)
1369 {
1370 struct w83792d_data *data;
1371 struct device *dev = &client->dev;
1372 int i, val1, err;
1373
1374 data = devm_kzalloc(dev, sizeof(struct w83792d_data), GFP_KERNEL);
1375 if (!data)
1376 return -ENOMEM;
1377
1378 i2c_set_clientdata(client, data);
1379 data->valid = 0;
1380 mutex_init(&data->update_lock);
1381
1382 err = w83792d_detect_subclients(client);
1383 if (err)
1384 return err;
1385
1386 /* Initialize the chip */
1387 w83792d_init_client(client);
1388
1389 /* A few vars need to be filled upon startup */
1390 for (i = 0; i < 7; i++) {
1391 data->fan_min[i] = w83792d_read_value(client,
1392 W83792D_REG_FAN_MIN[i]);
1393 }
1394
1395 /* Register sysfs hooks */
1396 err = sysfs_create_group(&dev->kobj, &w83792d_group);
1397 if (err)
1398 goto exit_i2c_unregister;
1399
1400 /*
1401 * Read GPIO enable register to check if pins for fan 4,5 are used as
1402 * GPIO
1403 */
1404 val1 = w83792d_read_value(client, W83792D_REG_GPIO_EN);
1405
1406 if (!(val1 & 0x40)) {
1407 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[0]);
1408 if (err)
1409 goto exit_remove_files;
1410 }
1411
1412 if (!(val1 & 0x20)) {
1413 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[1]);
1414 if (err)
1415 goto exit_remove_files;
1416 }
1417
1418 val1 = w83792d_read_value(client, W83792D_REG_PIN);
1419 if (val1 & 0x40) {
1420 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[2]);
1421 if (err)
1422 goto exit_remove_files;
1423 }
1424
1425 if (val1 & 0x04) {
1426 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[3]);
1427 if (err)
1428 goto exit_remove_files;
1429 }
1430
1431 data->hwmon_dev = hwmon_device_register(dev);
1432 if (IS_ERR(data->hwmon_dev)) {
1433 err = PTR_ERR(data->hwmon_dev);
1434 goto exit_remove_files;
1435 }
1436
1437 return 0;
1438
1439 exit_remove_files:
1440 sysfs_remove_group(&dev->kobj, &w83792d_group);
1441 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++)
1442 sysfs_remove_group(&dev->kobj, &w83792d_group_fan[i]);
1443 exit_i2c_unregister:
1444 if (data->lm75[0] != NULL)
1445 i2c_unregister_device(data->lm75[0]);
1446 if (data->lm75[1] != NULL)
1447 i2c_unregister_device(data->lm75[1]);
1448 return err;
1449 }
1450
1451 static int
1452 w83792d_remove(struct i2c_client *client)
1453 {
1454 struct w83792d_data *data = i2c_get_clientdata(client);
1455 int i;
1456
1457 hwmon_device_unregister(data->hwmon_dev);
1458 sysfs_remove_group(&client->dev.kobj, &w83792d_group);
1459 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++)
1460 sysfs_remove_group(&client->dev.kobj,
1461 &w83792d_group_fan[i]);
1462
1463 if (data->lm75[0] != NULL)
1464 i2c_unregister_device(data->lm75[0]);
1465 if (data->lm75[1] != NULL)
1466 i2c_unregister_device(data->lm75[1]);
1467
1468 return 0;
1469 }
1470
1471 static void
1472 w83792d_init_client(struct i2c_client *client)
1473 {
1474 u8 temp2_cfg, temp3_cfg, vid_in_b;
1475
1476 if (init)
1477 w83792d_write_value(client, W83792D_REG_CONFIG, 0x80);
1478
1479 /*
1480 * Clear the bit6 of W83792D_REG_VID_IN_B(set it into 0):
1481 * W83792D_REG_VID_IN_B bit6 = 0: the high/low limit of
1482 * vin0/vin1 can be modified by user;
1483 * W83792D_REG_VID_IN_B bit6 = 1: the high/low limit of
1484 * vin0/vin1 auto-updated, can NOT be modified by user.
1485 */
1486 vid_in_b = w83792d_read_value(client, W83792D_REG_VID_IN_B);
1487 w83792d_write_value(client, W83792D_REG_VID_IN_B,
1488 vid_in_b & 0xbf);
1489
1490 temp2_cfg = w83792d_read_value(client, W83792D_REG_TEMP2_CONFIG);
1491 temp3_cfg = w83792d_read_value(client, W83792D_REG_TEMP3_CONFIG);
1492 w83792d_write_value(client, W83792D_REG_TEMP2_CONFIG,
1493 temp2_cfg & 0xe6);
1494 w83792d_write_value(client, W83792D_REG_TEMP3_CONFIG,
1495 temp3_cfg & 0xe6);
1496
1497 /* Start monitoring */
1498 w83792d_write_value(client, W83792D_REG_CONFIG,
1499 (w83792d_read_value(client,
1500 W83792D_REG_CONFIG) & 0xf7)
1501 | 0x01);
1502 }
1503
1504 static struct w83792d_data *w83792d_update_device(struct device *dev)
1505 {
1506 struct i2c_client *client = to_i2c_client(dev);
1507 struct w83792d_data *data = i2c_get_clientdata(client);
1508 int i, j;
1509 u8 reg_array_tmp[4], reg_tmp;
1510
1511 mutex_lock(&data->update_lock);
1512
1513 if (time_after
1514 (jiffies - data->last_updated, (unsigned long) (HZ * 3))
1515 || time_before(jiffies, data->last_updated) || !data->valid) {
1516 dev_dbg(dev, "Starting device update\n");
1517
1518 /* Update the voltages measured value and limits */
1519 for (i = 0; i < 9; i++) {
1520 data->in[i] = w83792d_read_value(client,
1521 W83792D_REG_IN[i]);
1522 data->in_max[i] = w83792d_read_value(client,
1523 W83792D_REG_IN_MAX[i]);
1524 data->in_min[i] = w83792d_read_value(client,
1525 W83792D_REG_IN_MIN[i]);
1526 }
1527 data->low_bits = w83792d_read_value(client,
1528 W83792D_REG_LOW_BITS1) +
1529 (w83792d_read_value(client,
1530 W83792D_REG_LOW_BITS2) << 8);
1531 for (i = 0; i < 7; i++) {
1532 /* Update the Fan measured value and limits */
1533 data->fan[i] = w83792d_read_value(client,
1534 W83792D_REG_FAN[i]);
1535 data->fan_min[i] = w83792d_read_value(client,
1536 W83792D_REG_FAN_MIN[i]);
1537 /* Update the PWM/DC Value and PWM/DC flag */
1538 data->pwm[i] = w83792d_read_value(client,
1539 W83792D_REG_PWM[i]);
1540 }
1541
1542 reg_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG);
1543 data->pwmenable[0] = reg_tmp & 0x03;
1544 data->pwmenable[1] = (reg_tmp>>2) & 0x03;
1545 data->pwmenable[2] = (reg_tmp>>4) & 0x03;
1546
1547 for (i = 0; i < 3; i++) {
1548 data->temp1[i] = w83792d_read_value(client,
1549 W83792D_REG_TEMP1[i]);
1550 }
1551 for (i = 0; i < 2; i++) {
1552 for (j = 0; j < 6; j++) {
1553 data->temp_add[i][j] = w83792d_read_value(
1554 client, W83792D_REG_TEMP_ADD[i][j]);
1555 }
1556 }
1557
1558 /* Update the Fan Divisor */
1559 for (i = 0; i < 4; i++) {
1560 reg_array_tmp[i] = w83792d_read_value(client,
1561 W83792D_REG_FAN_DIV[i]);
1562 }
1563 data->fan_div[0] = reg_array_tmp[0] & 0x07;
1564 data->fan_div[1] = (reg_array_tmp[0] >> 4) & 0x07;
1565 data->fan_div[2] = reg_array_tmp[1] & 0x07;
1566 data->fan_div[3] = (reg_array_tmp[1] >> 4) & 0x07;
1567 data->fan_div[4] = reg_array_tmp[2] & 0x07;
1568 data->fan_div[5] = (reg_array_tmp[2] >> 4) & 0x07;
1569 data->fan_div[6] = reg_array_tmp[3] & 0x07;
1570
1571 /* Update the realtime status */
1572 data->alarms = w83792d_read_value(client, W83792D_REG_ALARM1) +
1573 (w83792d_read_value(client, W83792D_REG_ALARM2) << 8) +
1574 (w83792d_read_value(client, W83792D_REG_ALARM3) << 16);
1575
1576 /* Update CaseOpen status and it's CLR_CHS. */
1577 data->chassis = (w83792d_read_value(client,
1578 W83792D_REG_CHASSIS) >> 5) & 0x01;
1579
1580 /* Update Thermal Cruise/Smart Fan I target value */
1581 for (i = 0; i < 3; i++) {
1582 data->thermal_cruise[i] =
1583 w83792d_read_value(client,
1584 W83792D_REG_THERMAL[i]) & 0x7f;
1585 }
1586
1587 /* Update Smart Fan I/II tolerance */
1588 reg_tmp = w83792d_read_value(client, W83792D_REG_TOLERANCE[0]);
1589 data->tolerance[0] = reg_tmp & 0x0f;
1590 data->tolerance[1] = (reg_tmp >> 4) & 0x0f;
1591 data->tolerance[2] = w83792d_read_value(client,
1592 W83792D_REG_TOLERANCE[2]) & 0x0f;
1593
1594 /* Update Smart Fan II temperature points */
1595 for (i = 0; i < 3; i++) {
1596 for (j = 0; j < 4; j++) {
1597 data->sf2_points[i][j]
1598 = w83792d_read_value(client,
1599 W83792D_REG_POINTS[i][j]) & 0x7f;
1600 }
1601 }
1602
1603 /* Update Smart Fan II duty cycle levels */
1604 for (i = 0; i < 3; i++) {
1605 reg_tmp = w83792d_read_value(client,
1606 W83792D_REG_LEVELS[i][0]);
1607 data->sf2_levels[i][0] = reg_tmp & 0x0f;
1608 data->sf2_levels[i][1] = (reg_tmp >> 4) & 0x0f;
1609 reg_tmp = w83792d_read_value(client,
1610 W83792D_REG_LEVELS[i][2]);
1611 data->sf2_levels[i][2] = (reg_tmp >> 4) & 0x0f;
1612 data->sf2_levels[i][3] = reg_tmp & 0x0f;
1613 }
1614
1615 data->last_updated = jiffies;
1616 data->valid = 1;
1617 }
1618
1619 mutex_unlock(&data->update_lock);
1620
1621 #ifdef DEBUG
1622 w83792d_print_debug(data, dev);
1623 #endif
1624
1625 return data;
1626 }
1627
1628 #ifdef DEBUG
1629 static void w83792d_print_debug(struct w83792d_data *data, struct device *dev)
1630 {
1631 int i = 0, j = 0;
1632 dev_dbg(dev, "==========The following is the debug message...========\n");
1633 dev_dbg(dev, "9 set of Voltages: =====>\n");
1634 for (i = 0; i < 9; i++) {
1635 dev_dbg(dev, "vin[%d] is: 0x%x\n", i, data->in[i]);
1636 dev_dbg(dev, "vin[%d] max is: 0x%x\n", i, data->in_max[i]);
1637 dev_dbg(dev, "vin[%d] min is: 0x%x\n", i, data->in_min[i]);
1638 }
1639 dev_dbg(dev, "Low Bit1 is: 0x%x\n", data->low_bits & 0xff);
1640 dev_dbg(dev, "Low Bit2 is: 0x%x\n", data->low_bits >> 8);
1641 dev_dbg(dev, "7 set of Fan Counts and Duty Cycles: =====>\n");
1642 for (i = 0; i < 7; i++) {
1643 dev_dbg(dev, "fan[%d] is: 0x%x\n", i, data->fan[i]);
1644 dev_dbg(dev, "fan[%d] min is: 0x%x\n", i, data->fan_min[i]);
1645 dev_dbg(dev, "pwm[%d] is: 0x%x\n", i, data->pwm[i]);
1646 }
1647 dev_dbg(dev, "3 set of Temperatures: =====>\n");
1648 for (i = 0; i < 3; i++)
1649 dev_dbg(dev, "temp1[%d] is: 0x%x\n", i, data->temp1[i]);
1650
1651 for (i = 0; i < 2; i++) {
1652 for (j = 0; j < 6; j++) {
1653 dev_dbg(dev, "temp_add[%d][%d] is: 0x%x\n", i, j,
1654 data->temp_add[i][j]);
1655 }
1656 }
1657
1658 for (i = 0; i < 7; i++)
1659 dev_dbg(dev, "fan_div[%d] is: 0x%x\n", i, data->fan_div[i]);
1660
1661 dev_dbg(dev, "==========End of the debug message...================\n");
1662 dev_dbg(dev, "\n");
1663 }
1664 #endif
1665
1666 module_i2c_driver(w83792d_driver);
1667
1668 MODULE_AUTHOR("Shane Huang (Winbond)");
1669 MODULE_DESCRIPTION("W83792AD/D driver for linux-2.6");
1670 MODULE_LICENSE("GPL");
Linux with added FPC-III support