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1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * w83792d.c - Part of lm_sensors, Linux kernel modules for hardware
4 * monitoring
5 * Copyright (C) 2004, 2005 Winbond Electronics Corp.
6 * Shane Huang,
7 * Rudolf Marek <[email protected]>
8 *
9 * Note:
10 * 1. This driver is only for 2.6 kernel, 2.4 kernel need a different driver.
11 * 2. This driver is only for Winbond W83792D C version device, there
12 * are also some motherboards with B version W83792D device. The
13 * calculation method to in6-in7(measured value, limits) is a little
14 * different between C and B version. C or B version can be identified
15 * by CR[0x49h].
16 */
17
18/*
19 * Supports following chips:
20 *
21 * Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA
22 * w83792d 9 7 7 3 0x7a 0x5ca3 yes no
23 */
24
25#include <linux/module.h>
26#include <linux/init.h>
27#include <linux/slab.h>
28#include <linux/i2c.h>
29#include <linux/hwmon.h>
30#include <linux/hwmon-sysfs.h>
31#include <linux/err.h>
32#include <linux/mutex.h>
33#include <linux/sysfs.h>
34#include <linux/jiffies.h>
35
36/* Addresses to scan */
37static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f,
38 I2C_CLIENT_END };
39
40/* Insmod parameters */
41
42static unsigned short force_subclients[4];
43module_param_array(force_subclients, short, NULL, 0);
44MODULE_PARM_DESC(force_subclients,
45 "List of subclient addresses: {bus, clientaddr, subclientaddr1, subclientaddr2}");
46
47static bool init;
48module_param(init, bool, 0);
49MODULE_PARM_DESC(init, "Set to one to force chip initialization");
50
51/* The W83792D registers */
52static const u8 W83792D_REG_IN[9] = {
53 0x20, /* Vcore A in DataSheet */
54 0x21, /* Vcore B in DataSheet */
55 0x22, /* VIN0 in DataSheet */
56 0x23, /* VIN1 in DataSheet */
57 0x24, /* VIN2 in DataSheet */
58 0x25, /* VIN3 in DataSheet */
59 0x26, /* 5VCC in DataSheet */
60 0xB0, /* 5VSB in DataSheet */
61 0xB1 /* VBAT in DataSheet */
62};
63#define W83792D_REG_LOW_BITS1 0x3E /* Low Bits I in DataSheet */
64#define W83792D_REG_LOW_BITS2 0x3F /* Low Bits II in DataSheet */
65static const u8 W83792D_REG_IN_MAX[9] = {
66 0x2B, /* Vcore A High Limit in DataSheet */
67 0x2D, /* Vcore B High Limit in DataSheet */
68 0x2F, /* VIN0 High Limit in DataSheet */
69 0x31, /* VIN1 High Limit in DataSheet */
70 0x33, /* VIN2 High Limit in DataSheet */
71 0x35, /* VIN3 High Limit in DataSheet */
72 0x37, /* 5VCC High Limit in DataSheet */
73 0xB4, /* 5VSB High Limit in DataSheet */
74 0xB6 /* VBAT High Limit in DataSheet */
75};
76static const u8 W83792D_REG_IN_MIN[9] = {
77 0x2C, /* Vcore A Low Limit in DataSheet */
78 0x2E, /* Vcore B Low Limit in DataSheet */
79 0x30, /* VIN0 Low Limit in DataSheet */
80 0x32, /* VIN1 Low Limit in DataSheet */
81 0x34, /* VIN2 Low Limit in DataSheet */
82 0x36, /* VIN3 Low Limit in DataSheet */
83 0x38, /* 5VCC Low Limit in DataSheet */
84 0xB5, /* 5VSB Low Limit in DataSheet */
85 0xB7 /* VBAT Low Limit in DataSheet */
86};
87static const u8 W83792D_REG_FAN[7] = {
88 0x28, /* FAN 1 Count in DataSheet */
89 0x29, /* FAN 2 Count in DataSheet */
90 0x2A, /* FAN 3 Count in DataSheet */
91 0xB8, /* FAN 4 Count in DataSheet */
92 0xB9, /* FAN 5 Count in DataSheet */
93 0xBA, /* FAN 6 Count in DataSheet */
94 0xBE /* FAN 7 Count in DataSheet */
95};
96static const u8 W83792D_REG_FAN_MIN[7] = {
97 0x3B, /* FAN 1 Count Low Limit in DataSheet */
98 0x3C, /* FAN 2 Count Low Limit in DataSheet */
99 0x3D, /* FAN 3 Count Low Limit in DataSheet */
100 0xBB, /* FAN 4 Count Low Limit in DataSheet */
101 0xBC, /* FAN 5 Count Low Limit in DataSheet */
102 0xBD, /* FAN 6 Count Low Limit in DataSheet */
103 0xBF /* FAN 7 Count Low Limit in DataSheet */
104};
105#define W83792D_REG_FAN_CFG 0x84 /* FAN Configuration in DataSheet */
106static const u8 W83792D_REG_FAN_DIV[4] = {
107 0x47, /* contains FAN2 and FAN1 Divisor */
108 0x5B, /* contains FAN4 and FAN3 Divisor */
109 0x5C, /* contains FAN6 and FAN5 Divisor */
110 0x9E /* contains FAN7 Divisor. */
111};
112static const u8 W83792D_REG_PWM[7] = {
113 0x81, /* FAN 1 Duty Cycle, be used to control */
114 0x83, /* FAN 2 Duty Cycle, be used to control */
115 0x94, /* FAN 3 Duty Cycle, be used to control */
116 0xA3, /* FAN 4 Duty Cycle, be used to control */
117 0xA4, /* FAN 5 Duty Cycle, be used to control */
118 0xA5, /* FAN 6 Duty Cycle, be used to control */
119 0xA6 /* FAN 7 Duty Cycle, be used to control */
120};
121#define W83792D_REG_BANK 0x4E
122#define W83792D_REG_TEMP2_CONFIG 0xC2
123#define W83792D_REG_TEMP3_CONFIG 0xCA
124
125static const u8 W83792D_REG_TEMP1[3] = {
126 0x27, /* TEMP 1 in DataSheet */
127 0x39, /* TEMP 1 Over in DataSheet */
128 0x3A, /* TEMP 1 Hyst in DataSheet */
129};
130
131static const u8 W83792D_REG_TEMP_ADD[2][6] = {
132 { 0xC0, /* TEMP 2 in DataSheet */
133 0xC1, /* TEMP 2(0.5 deg) in DataSheet */
134 0xC5, /* TEMP 2 Over High part in DataSheet */
135 0xC6, /* TEMP 2 Over Low part in DataSheet */
136 0xC3, /* TEMP 2 Thyst High part in DataSheet */
137 0xC4 }, /* TEMP 2 Thyst Low part in DataSheet */
138 { 0xC8, /* TEMP 3 in DataSheet */
139 0xC9, /* TEMP 3(0.5 deg) in DataSheet */
140 0xCD, /* TEMP 3 Over High part in DataSheet */
141 0xCE, /* TEMP 3 Over Low part in DataSheet */
142 0xCB, /* TEMP 3 Thyst High part in DataSheet */
143 0xCC } /* TEMP 3 Thyst Low part in DataSheet */
144};
145
146static const u8 W83792D_REG_THERMAL[3] = {
147 0x85, /* SmartFanI: Fan1 target value */
148 0x86, /* SmartFanI: Fan2 target value */
149 0x96 /* SmartFanI: Fan3 target value */
150};
151
152static const u8 W83792D_REG_TOLERANCE[3] = {
153 0x87, /* (bit3-0)SmartFan Fan1 tolerance */
154 0x87, /* (bit7-4)SmartFan Fan2 tolerance */
155 0x97 /* (bit3-0)SmartFan Fan3 tolerance */
156};
157
158static const u8 W83792D_REG_POINTS[3][4] = {
159 { 0x85, /* SmartFanII: Fan1 temp point 1 */
160 0xE3, /* SmartFanII: Fan1 temp point 2 */
161 0xE4, /* SmartFanII: Fan1 temp point 3 */
162 0xE5 }, /* SmartFanII: Fan1 temp point 4 */
163 { 0x86, /* SmartFanII: Fan2 temp point 1 */
164 0xE6, /* SmartFanII: Fan2 temp point 2 */
165 0xE7, /* SmartFanII: Fan2 temp point 3 */
166 0xE8 }, /* SmartFanII: Fan2 temp point 4 */
167 { 0x96, /* SmartFanII: Fan3 temp point 1 */
168 0xE9, /* SmartFanII: Fan3 temp point 2 */
169 0xEA, /* SmartFanII: Fan3 temp point 3 */
170 0xEB } /* SmartFanII: Fan3 temp point 4 */
171};
172
173static const u8 W83792D_REG_LEVELS[3][4] = {
174 { 0x88, /* (bit3-0) SmartFanII: Fan1 Non-Stop */
175 0x88, /* (bit7-4) SmartFanII: Fan1 Level 1 */
176 0xE0, /* (bit7-4) SmartFanII: Fan1 Level 2 */
177 0xE0 }, /* (bit3-0) SmartFanII: Fan1 Level 3 */
178 { 0x89, /* (bit3-0) SmartFanII: Fan2 Non-Stop */
179 0x89, /* (bit7-4) SmartFanII: Fan2 Level 1 */
180 0xE1, /* (bit7-4) SmartFanII: Fan2 Level 2 */
181 0xE1 }, /* (bit3-0) SmartFanII: Fan2 Level 3 */
182 { 0x98, /* (bit3-0) SmartFanII: Fan3 Non-Stop */
183 0x98, /* (bit7-4) SmartFanII: Fan3 Level 1 */
184 0xE2, /* (bit7-4) SmartFanII: Fan3 Level 2 */
185 0xE2 } /* (bit3-0) SmartFanII: Fan3 Level 3 */
186};
187
188#define W83792D_REG_GPIO_EN 0x1A
189#define W83792D_REG_CONFIG 0x40
190#define W83792D_REG_VID_FANDIV 0x47
191#define W83792D_REG_CHIPID 0x49
192#define W83792D_REG_WCHIPID 0x58
193#define W83792D_REG_CHIPMAN 0x4F
194#define W83792D_REG_PIN 0x4B
195#define W83792D_REG_I2C_SUBADDR 0x4A
196
197#define W83792D_REG_ALARM1 0xA9 /* realtime status register1 */
198#define W83792D_REG_ALARM2 0xAA /* realtime status register2 */
199#define W83792D_REG_ALARM3 0xAB /* realtime status register3 */
200#define W83792D_REG_CHASSIS 0x42 /* Bit 5: Case Open status bit */
201#define W83792D_REG_CHASSIS_CLR 0x44 /* Bit 7: Case Open CLR_CHS/Reset bit */
202
203/* control in0/in1 's limit modifiability */
204#define W83792D_REG_VID_IN_B 0x17
205
206#define W83792D_REG_VBAT 0x5D
207#define W83792D_REG_I2C_ADDR 0x48
208
209/*
210 * Conversions. Rounding and limit checking is only done on the TO_REG
211 * variants. Note that you should be a bit careful with which arguments
212 * these macros are called: arguments may be evaluated more than once.
213 * Fixing this is just not worth it.
214 */
215#define IN_FROM_REG(nr, val) (((nr) <= 1) ? ((val) * 2) : \
216 ((((nr) == 6) || ((nr) == 7)) ? ((val) * 6) : ((val) * 4)))
217#define IN_TO_REG(nr, val) (((nr) <= 1) ? ((val) / 2) : \
218 ((((nr) == 6) || ((nr) == 7)) ? ((val) / 6) : ((val) / 4)))
219
220static inline u8
221FAN_TO_REG(long rpm, int div)
222{
223 if (rpm == 0)
224 return 255;
225 rpm = clamp_val(rpm, 1, 1000000);
226 return clamp_val((1350000 + rpm * div / 2) / (rpm * div), 1, 254);
227}
228
229#define FAN_FROM_REG(val, div) ((val) == 0 ? -1 : \
230 ((val) == 255 ? 0 : \
231 1350000 / ((val) * (div))))
232
233/* for temp1 */
234#define TEMP1_TO_REG(val) (clamp_val(((val) < 0 ? (val) + 0x100 * 1000 \
235 : (val)) / 1000, 0, 0xff))
236#define TEMP1_FROM_REG(val) (((val) & 0x80 ? (val)-0x100 : (val)) * 1000)
237/* for temp2 and temp3, because they need additional resolution */
238#define TEMP_ADD_FROM_REG(val1, val2) \
239 ((((val1) & 0x80 ? (val1)-0x100 \
240 : (val1)) * 1000) + ((val2 & 0x80) ? 500 : 0))
241#define TEMP_ADD_TO_REG_HIGH(val) \
242 (clamp_val(((val) < 0 ? (val) + 0x100 * 1000 : (val)) / 1000, 0, 0xff))
243#define TEMP_ADD_TO_REG_LOW(val) ((val%1000) ? 0x80 : 0x00)
244
245#define DIV_FROM_REG(val) (1 << (val))
246
247static inline u8
248DIV_TO_REG(long val)
249{
250 int i;
251 val = clamp_val(val, 1, 128) >> 1;
252 for (i = 0; i < 7; i++) {
253 if (val == 0)
254 break;
255 val >>= 1;
256 }
257 return (u8)i;
258}
259
260struct w83792d_data {
261 struct device *hwmon_dev;
262
263 struct mutex update_lock;
264 bool valid; /* true if following fields are valid */
265 unsigned long last_updated; /* In jiffies */
266
267 u8 in[9]; /* Register value */
268 u8 in_max[9]; /* Register value */
269 u8 in_min[9]; /* Register value */
270 u16 low_bits; /* Additional resolution to voltage in6-0 */
271 u8 fan[7]; /* Register value */
272 u8 fan_min[7]; /* Register value */
273 u8 temp1[3]; /* current, over, thyst */
274 u8 temp_add[2][6]; /* Register value */
275 u8 fan_div[7]; /* Register encoding, shifted right */
276 u8 pwm[7]; /* The 7 PWM outputs */
277 u8 pwmenable[3];
278 u32 alarms; /* realtime status register encoding,combined */
279 u8 chassis; /* Chassis status */
280 u8 thermal_cruise[3]; /* Smart FanI: Fan1,2,3 target value */
281 u8 tolerance[3]; /* Fan1,2,3 tolerance(Smart Fan I/II) */
282 u8 sf2_points[3][4]; /* Smart FanII: Fan1,2,3 temperature points */
283 u8 sf2_levels[3][4]; /* Smart FanII: Fan1,2,3 duty cycle levels */
284};
285
286static int w83792d_probe(struct i2c_client *client);
287static int w83792d_detect(struct i2c_client *client,
288 struct i2c_board_info *info);
289static void w83792d_remove(struct i2c_client *client);
290static struct w83792d_data *w83792d_update_device(struct device *dev);
291
292#ifdef DEBUG
293static void w83792d_print_debug(struct w83792d_data *data, struct device *dev);
294#endif
295
296static void w83792d_init_client(struct i2c_client *client);
297
298static const struct i2c_device_id w83792d_id[] = {
299 { .name = "w83792d" },
300 { }
301};
302MODULE_DEVICE_TABLE(i2c, w83792d_id);
303
304static struct i2c_driver w83792d_driver = {
305 .class = I2C_CLASS_HWMON,
306 .driver = {
307 .name = "w83792d",
308 },
309 .probe = w83792d_probe,
310 .remove = w83792d_remove,
311 .id_table = w83792d_id,
312 .detect = w83792d_detect,
313 .address_list = normal_i2c,
314};
315
316static inline long in_count_from_reg(int nr, struct w83792d_data *data)
317{
318 /* in7 and in8 do not have low bits, but the formula still works */
319 return (data->in[nr] << 2) | ((data->low_bits >> (2 * nr)) & 0x03);
320}
321
322/*
323 * The SMBus locks itself. The Winbond W83792D chip has a bank register,
324 * but the driver only accesses registers in bank 0, so we don't have
325 * to switch banks and lock access between switches.
326 */
327static inline int w83792d_read_value(struct i2c_client *client, u8 reg)
328{
329 return i2c_smbus_read_byte_data(client, reg);
330}
331
332static inline int
333w83792d_write_value(struct i2c_client *client, u8 reg, u8 value)
334{
335 return i2c_smbus_write_byte_data(client, reg, value);
336}
337
338/* following are the sysfs callback functions */
339static ssize_t show_in(struct device *dev, struct device_attribute *attr,
340 char *buf)
341{
342 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
343 int nr = sensor_attr->index;
344 struct w83792d_data *data = w83792d_update_device(dev);
345 return sprintf(buf, "%ld\n",
346 IN_FROM_REG(nr, in_count_from_reg(nr, data)));
347}
348
349#define show_in_reg(reg) \
350static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
351 char *buf) \
352{ \
353 struct sensor_device_attribute *sensor_attr \
354 = to_sensor_dev_attr(attr); \
355 int nr = sensor_attr->index; \
356 struct w83792d_data *data = w83792d_update_device(dev); \
357 return sprintf(buf, "%ld\n", \
358 (long)(IN_FROM_REG(nr, data->reg[nr]) * 4)); \
359}
360
361show_in_reg(in_min);
362show_in_reg(in_max);
363
364#define store_in_reg(REG, reg) \
365static ssize_t store_in_##reg(struct device *dev, \
366 struct device_attribute *attr, \
367 const char *buf, size_t count) \
368{ \
369 struct sensor_device_attribute *sensor_attr \
370 = to_sensor_dev_attr(attr); \
371 int nr = sensor_attr->index; \
372 struct i2c_client *client = to_i2c_client(dev); \
373 struct w83792d_data *data = i2c_get_clientdata(client); \
374 unsigned long val; \
375 int err = kstrtoul(buf, 10, &val); \
376 if (err) \
377 return err; \
378 mutex_lock(&data->update_lock); \
379 data->in_##reg[nr] = clamp_val(IN_TO_REG(nr, val) / 4, 0, 255); \
380 w83792d_write_value(client, W83792D_REG_IN_##REG[nr], \
381 data->in_##reg[nr]); \
382 mutex_unlock(&data->update_lock); \
383 \
384 return count; \
385}
386store_in_reg(MIN, min);
387store_in_reg(MAX, max);
388
389#define show_fan_reg(reg) \
390static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
391 char *buf) \
392{ \
393 struct sensor_device_attribute *sensor_attr \
394 = to_sensor_dev_attr(attr); \
395 int nr = sensor_attr->index - 1; \
396 struct w83792d_data *data = w83792d_update_device(dev); \
397 return sprintf(buf, "%d\n", \
398 FAN_FROM_REG(data->reg[nr], DIV_FROM_REG(data->fan_div[nr]))); \
399}
400
401show_fan_reg(fan);
402show_fan_reg(fan_min);
403
404static ssize_t
405store_fan_min(struct device *dev, struct device_attribute *attr,
406 const char *buf, size_t count)
407{
408 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
409 int nr = sensor_attr->index - 1;
410 struct i2c_client *client = to_i2c_client(dev);
411 struct w83792d_data *data = i2c_get_clientdata(client);
412 unsigned long val;
413 int err;
414
415 err = kstrtoul(buf, 10, &val);
416 if (err)
417 return err;
418
419 mutex_lock(&data->update_lock);
420 data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
421 w83792d_write_value(client, W83792D_REG_FAN_MIN[nr],
422 data->fan_min[nr]);
423 mutex_unlock(&data->update_lock);
424
425 return count;
426}
427
428static ssize_t
429show_fan_div(struct device *dev, struct device_attribute *attr,
430 char *buf)
431{
432 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
433 int nr = sensor_attr->index;
434 struct w83792d_data *data = w83792d_update_device(dev);
435 return sprintf(buf, "%u\n", DIV_FROM_REG(data->fan_div[nr - 1]));
436}
437
438/*
439 * Note: we save and restore the fan minimum here, because its value is
440 * determined in part by the fan divisor. This follows the principle of
441 * least surprise; the user doesn't expect the fan minimum to change just
442 * because the divisor changed.
443 */
444static ssize_t
445store_fan_div(struct device *dev, struct device_attribute *attr,
446 const char *buf, size_t count)
447{
448 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
449 int nr = sensor_attr->index - 1;
450 struct i2c_client *client = to_i2c_client(dev);
451 struct w83792d_data *data = i2c_get_clientdata(client);
452 unsigned long min;
453 /*u8 reg;*/
454 u8 fan_div_reg = 0;
455 u8 tmp_fan_div;
456 unsigned long val;
457 int err;
458
459 err = kstrtoul(buf, 10, &val);
460 if (err)
461 return err;
462
463 /* Save fan_min */
464 mutex_lock(&data->update_lock);
465 min = FAN_FROM_REG(data->fan_min[nr],
466 DIV_FROM_REG(data->fan_div[nr]));
467
468 data->fan_div[nr] = DIV_TO_REG(val);
469
470 fan_div_reg = w83792d_read_value(client, W83792D_REG_FAN_DIV[nr >> 1]);
471 fan_div_reg &= (nr & 0x01) ? 0x8f : 0xf8;
472 tmp_fan_div = (nr & 0x01) ? (((data->fan_div[nr]) << 4) & 0x70)
473 : ((data->fan_div[nr]) & 0x07);
474 w83792d_write_value(client, W83792D_REG_FAN_DIV[nr >> 1],
475 fan_div_reg | tmp_fan_div);
476
477 /* Restore fan_min */
478 data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
479 w83792d_write_value(client, W83792D_REG_FAN_MIN[nr], data->fan_min[nr]);
480 mutex_unlock(&data->update_lock);
481
482 return count;
483}
484
485/* read/write the temperature1, includes measured value and limits */
486
487static ssize_t show_temp1(struct device *dev, struct device_attribute *attr,
488 char *buf)
489{
490 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
491 int nr = sensor_attr->index;
492 struct w83792d_data *data = w83792d_update_device(dev);
493 return sprintf(buf, "%d\n", TEMP1_FROM_REG(data->temp1[nr]));
494}
495
496static ssize_t store_temp1(struct device *dev, struct device_attribute *attr,
497 const char *buf, size_t count)
498{
499 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
500 int nr = sensor_attr->index;
501 struct i2c_client *client = to_i2c_client(dev);
502 struct w83792d_data *data = i2c_get_clientdata(client);
503 long val;
504 int err;
505
506 err = kstrtol(buf, 10, &val);
507 if (err)
508 return err;
509
510 mutex_lock(&data->update_lock);
511 data->temp1[nr] = TEMP1_TO_REG(val);
512 w83792d_write_value(client, W83792D_REG_TEMP1[nr],
513 data->temp1[nr]);
514 mutex_unlock(&data->update_lock);
515
516 return count;
517}
518
519/* read/write the temperature2-3, includes measured value and limits */
520
521static ssize_t show_temp23(struct device *dev, struct device_attribute *attr,
522 char *buf)
523{
524 struct sensor_device_attribute_2 *sensor_attr
525 = to_sensor_dev_attr_2(attr);
526 int nr = sensor_attr->nr;
527 int index = sensor_attr->index;
528 struct w83792d_data *data = w83792d_update_device(dev);
529 return sprintf(buf, "%ld\n",
530 (long)TEMP_ADD_FROM_REG(data->temp_add[nr][index],
531 data->temp_add[nr][index+1]));
532}
533
534static ssize_t store_temp23(struct device *dev, struct device_attribute *attr,
535 const char *buf, size_t count)
536{
537 struct sensor_device_attribute_2 *sensor_attr
538 = to_sensor_dev_attr_2(attr);
539 int nr = sensor_attr->nr;
540 int index = sensor_attr->index;
541 struct i2c_client *client = to_i2c_client(dev);
542 struct w83792d_data *data = i2c_get_clientdata(client);
543 long val;
544 int err;
545
546 err = kstrtol(buf, 10, &val);
547 if (err)
548 return err;
549
550 mutex_lock(&data->update_lock);
551 data->temp_add[nr][index] = TEMP_ADD_TO_REG_HIGH(val);
552 data->temp_add[nr][index+1] = TEMP_ADD_TO_REG_LOW(val);
553 w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index],
554 data->temp_add[nr][index]);
555 w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index+1],
556 data->temp_add[nr][index+1]);
557 mutex_unlock(&data->update_lock);
558
559 return count;
560}
561
562/* get realtime status of all sensors items: voltage, temp, fan */
563static ssize_t
564alarms_show(struct device *dev, struct device_attribute *attr, char *buf)
565{
566 struct w83792d_data *data = w83792d_update_device(dev);
567 return sprintf(buf, "%d\n", data->alarms);
568}
569
570static ssize_t show_alarm(struct device *dev,
571 struct device_attribute *attr, char *buf)
572{
573 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
574 int nr = sensor_attr->index;
575 struct w83792d_data *data = w83792d_update_device(dev);
576 return sprintf(buf, "%d\n", (data->alarms >> nr) & 1);
577}
578
579static ssize_t
580show_pwm(struct device *dev, struct device_attribute *attr,
581 char *buf)
582{
583 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
584 int nr = sensor_attr->index;
585 struct w83792d_data *data = w83792d_update_device(dev);
586 return sprintf(buf, "%d\n", (data->pwm[nr] & 0x0f) << 4);
587}
588
589static ssize_t
590show_pwmenable(struct device *dev, struct device_attribute *attr,
591 char *buf)
592{
593 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
594 int nr = sensor_attr->index - 1;
595 struct w83792d_data *data = w83792d_update_device(dev);
596 long pwm_enable_tmp = 1;
597
598 switch (data->pwmenable[nr]) {
599 case 0:
600 pwm_enable_tmp = 1; /* manual mode */
601 break;
602 case 1:
603 pwm_enable_tmp = 3; /*thermal cruise/Smart Fan I */
604 break;
605 case 2:
606 pwm_enable_tmp = 2; /* Smart Fan II */
607 break;
608 }
609
610 return sprintf(buf, "%ld\n", pwm_enable_tmp);
611}
612
613static ssize_t
614store_pwm(struct device *dev, struct device_attribute *attr,
615 const char *buf, size_t count)
616{
617 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
618 int nr = sensor_attr->index;
619 struct i2c_client *client = to_i2c_client(dev);
620 struct w83792d_data *data = i2c_get_clientdata(client);
621 unsigned long val;
622 int err;
623
624 err = kstrtoul(buf, 10, &val);
625 if (err)
626 return err;
627 val = clamp_val(val, 0, 255) >> 4;
628
629 mutex_lock(&data->update_lock);
630 val |= w83792d_read_value(client, W83792D_REG_PWM[nr]) & 0xf0;
631 data->pwm[nr] = val;
632 w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]);
633 mutex_unlock(&data->update_lock);
634
635 return count;
636}
637
638static ssize_t
639store_pwmenable(struct device *dev, struct device_attribute *attr,
640 const char *buf, size_t count)
641{
642 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
643 int nr = sensor_attr->index - 1;
644 struct i2c_client *client = to_i2c_client(dev);
645 struct w83792d_data *data = i2c_get_clientdata(client);
646 u8 fan_cfg_tmp, cfg1_tmp, cfg2_tmp, cfg3_tmp, cfg4_tmp;
647 unsigned long val;
648 int err;
649
650 err = kstrtoul(buf, 10, &val);
651 if (err)
652 return err;
653
654 if (val < 1 || val > 3)
655 return -EINVAL;
656
657 mutex_lock(&data->update_lock);
658 switch (val) {
659 case 1:
660 data->pwmenable[nr] = 0; /* manual mode */
661 break;
662 case 2:
663 data->pwmenable[nr] = 2; /* Smart Fan II */
664 break;
665 case 3:
666 data->pwmenable[nr] = 1; /* thermal cruise/Smart Fan I */
667 break;
668 }
669 cfg1_tmp = data->pwmenable[0];
670 cfg2_tmp = (data->pwmenable[1]) << 2;
671 cfg3_tmp = (data->pwmenable[2]) << 4;
672 cfg4_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG) & 0xc0;
673 fan_cfg_tmp = ((cfg4_tmp | cfg3_tmp) | cfg2_tmp) | cfg1_tmp;
674 w83792d_write_value(client, W83792D_REG_FAN_CFG, fan_cfg_tmp);
675 mutex_unlock(&data->update_lock);
676
677 return count;
678}
679
680static ssize_t
681show_pwm_mode(struct device *dev, struct device_attribute *attr,
682 char *buf)
683{
684 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
685 int nr = sensor_attr->index;
686 struct w83792d_data *data = w83792d_update_device(dev);
687 return sprintf(buf, "%d\n", data->pwm[nr] >> 7);
688}
689
690static ssize_t
691store_pwm_mode(struct device *dev, struct device_attribute *attr,
692 const char *buf, size_t count)
693{
694 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
695 int nr = sensor_attr->index;
696 struct i2c_client *client = to_i2c_client(dev);
697 struct w83792d_data *data = i2c_get_clientdata(client);
698 unsigned long val;
699 int err;
700
701 err = kstrtoul(buf, 10, &val);
702 if (err)
703 return err;
704 if (val > 1)
705 return -EINVAL;
706
707 mutex_lock(&data->update_lock);
708 data->pwm[nr] = w83792d_read_value(client, W83792D_REG_PWM[nr]);
709 if (val) { /* PWM mode */
710 data->pwm[nr] |= 0x80;
711 } else { /* DC mode */
712 data->pwm[nr] &= 0x7f;
713 }
714 w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]);
715 mutex_unlock(&data->update_lock);
716
717 return count;
718}
719
720static ssize_t
721intrusion0_alarm_show(struct device *dev, struct device_attribute *attr,
722 char *buf)
723{
724 struct w83792d_data *data = w83792d_update_device(dev);
725 return sprintf(buf, "%d\n", data->chassis);
726}
727
728static ssize_t
729intrusion0_alarm_store(struct device *dev, struct device_attribute *attr,
730 const char *buf, size_t count)
731{
732 struct i2c_client *client = to_i2c_client(dev);
733 struct w83792d_data *data = i2c_get_clientdata(client);
734 unsigned long val;
735 u8 reg;
736
737 if (kstrtoul(buf, 10, &val) || val != 0)
738 return -EINVAL;
739
740 mutex_lock(&data->update_lock);
741 reg = w83792d_read_value(client, W83792D_REG_CHASSIS_CLR);
742 w83792d_write_value(client, W83792D_REG_CHASSIS_CLR, reg | 0x80);
743 data->valid = false; /* Force cache refresh */
744 mutex_unlock(&data->update_lock);
745
746 return count;
747}
748
749/* For Smart Fan I / Thermal Cruise */
750static ssize_t
751show_thermal_cruise(struct device *dev, struct device_attribute *attr,
752 char *buf)
753{
754 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
755 int nr = sensor_attr->index;
756 struct w83792d_data *data = w83792d_update_device(dev);
757 return sprintf(buf, "%ld\n", (long)data->thermal_cruise[nr-1]);
758}
759
760static ssize_t
761store_thermal_cruise(struct device *dev, struct device_attribute *attr,
762 const char *buf, size_t count)
763{
764 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
765 int nr = sensor_attr->index - 1;
766 struct i2c_client *client = to_i2c_client(dev);
767 struct w83792d_data *data = i2c_get_clientdata(client);
768 u8 target_tmp = 0, target_mask = 0;
769 unsigned long val;
770 int err;
771
772 err = kstrtoul(buf, 10, &val);
773 if (err)
774 return err;
775
776 target_tmp = val;
777 target_tmp = target_tmp & 0x7f;
778 mutex_lock(&data->update_lock);
779 target_mask = w83792d_read_value(client,
780 W83792D_REG_THERMAL[nr]) & 0x80;
781 data->thermal_cruise[nr] = clamp_val(target_tmp, 0, 255);
782 w83792d_write_value(client, W83792D_REG_THERMAL[nr],
783 (data->thermal_cruise[nr]) | target_mask);
784 mutex_unlock(&data->update_lock);
785
786 return count;
787}
788
789/* For Smart Fan I/Thermal Cruise and Smart Fan II */
790static ssize_t
791show_tolerance(struct device *dev, struct device_attribute *attr,
792 char *buf)
793{
794 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
795 int nr = sensor_attr->index;
796 struct w83792d_data *data = w83792d_update_device(dev);
797 return sprintf(buf, "%ld\n", (long)data->tolerance[nr-1]);
798}
799
800static ssize_t
801store_tolerance(struct device *dev, struct device_attribute *attr,
802 const char *buf, size_t count)
803{
804 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
805 int nr = sensor_attr->index - 1;
806 struct i2c_client *client = to_i2c_client(dev);
807 struct w83792d_data *data = i2c_get_clientdata(client);
808 u8 tol_tmp, tol_mask;
809 unsigned long val;
810 int err;
811
812 err = kstrtoul(buf, 10, &val);
813 if (err)
814 return err;
815
816 mutex_lock(&data->update_lock);
817 tol_mask = w83792d_read_value(client,
818 W83792D_REG_TOLERANCE[nr]) & ((nr == 1) ? 0x0f : 0xf0);
819 tol_tmp = clamp_val(val, 0, 15);
820 tol_tmp &= 0x0f;
821 data->tolerance[nr] = tol_tmp;
822 if (nr == 1)
823 tol_tmp <<= 4;
824 w83792d_write_value(client, W83792D_REG_TOLERANCE[nr],
825 tol_mask | tol_tmp);
826 mutex_unlock(&data->update_lock);
827
828 return count;
829}
830
831/* For Smart Fan II */
832static ssize_t
833show_sf2_point(struct device *dev, struct device_attribute *attr,
834 char *buf)
835{
836 struct sensor_device_attribute_2 *sensor_attr
837 = to_sensor_dev_attr_2(attr);
838 int nr = sensor_attr->nr;
839 int index = sensor_attr->index;
840 struct w83792d_data *data = w83792d_update_device(dev);
841 return sprintf(buf, "%ld\n", (long)data->sf2_points[index-1][nr-1]);
842}
843
844static ssize_t
845store_sf2_point(struct device *dev, struct device_attribute *attr,
846 const char *buf, size_t count)
847{
848 struct sensor_device_attribute_2 *sensor_attr
849 = to_sensor_dev_attr_2(attr);
850 int nr = sensor_attr->nr - 1;
851 int index = sensor_attr->index - 1;
852 struct i2c_client *client = to_i2c_client(dev);
853 struct w83792d_data *data = i2c_get_clientdata(client);
854 u8 mask_tmp = 0;
855 unsigned long val;
856 int err;
857
858 err = kstrtoul(buf, 10, &val);
859 if (err)
860 return err;
861
862 mutex_lock(&data->update_lock);
863 data->sf2_points[index][nr] = clamp_val(val, 0, 127);
864 mask_tmp = w83792d_read_value(client,
865 W83792D_REG_POINTS[index][nr]) & 0x80;
866 w83792d_write_value(client, W83792D_REG_POINTS[index][nr],
867 mask_tmp|data->sf2_points[index][nr]);
868 mutex_unlock(&data->update_lock);
869
870 return count;
871}
872
873static ssize_t
874show_sf2_level(struct device *dev, struct device_attribute *attr,
875 char *buf)
876{
877 struct sensor_device_attribute_2 *sensor_attr
878 = to_sensor_dev_attr_2(attr);
879 int nr = sensor_attr->nr;
880 int index = sensor_attr->index;
881 struct w83792d_data *data = w83792d_update_device(dev);
882 return sprintf(buf, "%d\n",
883 (((data->sf2_levels[index-1][nr]) * 100) / 15));
884}
885
886static ssize_t
887store_sf2_level(struct device *dev, struct device_attribute *attr,
888 const char *buf, size_t count)
889{
890 struct sensor_device_attribute_2 *sensor_attr
891 = to_sensor_dev_attr_2(attr);
892 int nr = sensor_attr->nr;
893 int index = sensor_attr->index - 1;
894 struct i2c_client *client = to_i2c_client(dev);
895 struct w83792d_data *data = i2c_get_clientdata(client);
896 u8 mask_tmp = 0, level_tmp = 0;
897 unsigned long val;
898 int err;
899
900 err = kstrtoul(buf, 10, &val);
901 if (err)
902 return err;
903
904 mutex_lock(&data->update_lock);
905 data->sf2_levels[index][nr] = clamp_val((val * 15) / 100, 0, 15);
906 mask_tmp = w83792d_read_value(client, W83792D_REG_LEVELS[index][nr])
907 & ((nr == 3) ? 0xf0 : 0x0f);
908 if (nr == 3)
909 level_tmp = data->sf2_levels[index][nr];
910 else
911 level_tmp = data->sf2_levels[index][nr] << 4;
912 w83792d_write_value(client, W83792D_REG_LEVELS[index][nr],
913 level_tmp | mask_tmp);
914 mutex_unlock(&data->update_lock);
915
916 return count;
917}
918
919
920static int
921w83792d_detect_subclients(struct i2c_client *new_client)
922{
923 int i, id;
924 int address = new_client->addr;
925 u8 val;
926 struct i2c_adapter *adapter = new_client->adapter;
927
928 id = i2c_adapter_id(adapter);
929 if (force_subclients[0] == id && force_subclients[1] == address) {
930 for (i = 2; i <= 3; i++) {
931 if (force_subclients[i] < 0x48 ||
932 force_subclients[i] > 0x4f) {
933 dev_err(&new_client->dev,
934 "invalid subclient address %d; must be 0x48-0x4f\n",
935 force_subclients[i]);
936 return -ENODEV;
937 }
938 }
939 w83792d_write_value(new_client, W83792D_REG_I2C_SUBADDR,
940 (force_subclients[2] & 0x07) |
941 ((force_subclients[3] & 0x07) << 4));
942 }
943
944 val = w83792d_read_value(new_client, W83792D_REG_I2C_SUBADDR);
945
946 if (!(val & 0x88) && (val & 0x7) == ((val >> 4) & 0x7)) {
947 dev_err(&new_client->dev,
948 "duplicate addresses 0x%x, use force_subclient\n", 0x48 + (val & 0x7));
949 return -ENODEV;
950 }
951
952 if (!(val & 0x08))
953 devm_i2c_new_dummy_device(&new_client->dev, adapter, 0x48 + (val & 0x7));
954
955 if (!(val & 0x80))
956 devm_i2c_new_dummy_device(&new_client->dev, adapter, 0x48 + ((val >> 4) & 0x7));
957
958 return 0;
959}
960
961static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0);
962static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1);
963static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2);
964static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3);
965static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 4);
966static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 5);
967static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 6);
968static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 7);
969static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_in, NULL, 8);
970static SENSOR_DEVICE_ATTR(in0_min, S_IWUSR | S_IRUGO,
971 show_in_min, store_in_min, 0);
972static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO,
973 show_in_min, store_in_min, 1);
974static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO,
975 show_in_min, store_in_min, 2);
976static SENSOR_DEVICE_ATTR(in3_min, S_IWUSR | S_IRUGO,
977 show_in_min, store_in_min, 3);
978static SENSOR_DEVICE_ATTR(in4_min, S_IWUSR | S_IRUGO,
979 show_in_min, store_in_min, 4);
980static SENSOR_DEVICE_ATTR(in5_min, S_IWUSR | S_IRUGO,
981 show_in_min, store_in_min, 5);
982static SENSOR_DEVICE_ATTR(in6_min, S_IWUSR | S_IRUGO,
983 show_in_min, store_in_min, 6);
984static SENSOR_DEVICE_ATTR(in7_min, S_IWUSR | S_IRUGO,
985 show_in_min, store_in_min, 7);
986static SENSOR_DEVICE_ATTR(in8_min, S_IWUSR | S_IRUGO,
987 show_in_min, store_in_min, 8);
988static SENSOR_DEVICE_ATTR(in0_max, S_IWUSR | S_IRUGO,
989 show_in_max, store_in_max, 0);
990static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO,
991 show_in_max, store_in_max, 1);
992static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO,
993 show_in_max, store_in_max, 2);
994static SENSOR_DEVICE_ATTR(in3_max, S_IWUSR | S_IRUGO,
995 show_in_max, store_in_max, 3);
996static SENSOR_DEVICE_ATTR(in4_max, S_IWUSR | S_IRUGO,
997 show_in_max, store_in_max, 4);
998static SENSOR_DEVICE_ATTR(in5_max, S_IWUSR | S_IRUGO,
999 show_in_max, store_in_max, 5);
1000static SENSOR_DEVICE_ATTR(in6_max, S_IWUSR | S_IRUGO,
1001 show_in_max, store_in_max, 6);
1002static SENSOR_DEVICE_ATTR(in7_max, S_IWUSR | S_IRUGO,
1003 show_in_max, store_in_max, 7);
1004static SENSOR_DEVICE_ATTR(in8_max, S_IWUSR | S_IRUGO,
1005 show_in_max, store_in_max, 8);
1006static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp1, NULL, 0, 0);
1007static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp23, NULL, 0, 0);
1008static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp23, NULL, 1, 0);
1009static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR,
1010 show_temp1, store_temp1, 0, 1);
1011static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp23,
1012 store_temp23, 0, 2);
1013static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp23,
1014 store_temp23, 1, 2);
1015static SENSOR_DEVICE_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR,
1016 show_temp1, store_temp1, 0, 2);
1017static SENSOR_DEVICE_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR,
1018 show_temp23, store_temp23, 0, 4);
1019static SENSOR_DEVICE_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR,
1020 show_temp23, store_temp23, 1, 4);
1021static DEVICE_ATTR_RO(alarms);
1022static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
1023static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
1024static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 2);
1025static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 3);
1026static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 4);
1027static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 5);
1028static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 6);
1029static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 7);
1030static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 8);
1031static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 9);
1032static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 10);
1033static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 11);
1034static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 12);
1035static SENSOR_DEVICE_ATTR(fan7_alarm, S_IRUGO, show_alarm, NULL, 15);
1036static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 19);
1037static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 20);
1038static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 21);
1039static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 22);
1040static SENSOR_DEVICE_ATTR(fan6_alarm, S_IRUGO, show_alarm, NULL, 23);
1041static DEVICE_ATTR_RW(intrusion0_alarm);
1042static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0);
1043static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1);
1044static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2);
1045static SENSOR_DEVICE_ATTR(pwm4, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 3);
1046static SENSOR_DEVICE_ATTR(pwm5, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 4);
1047static SENSOR_DEVICE_ATTR(pwm6, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 5);
1048static SENSOR_DEVICE_ATTR(pwm7, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 6);
1049static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO,
1050 show_pwmenable, store_pwmenable, 1);
1051static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO,
1052 show_pwmenable, store_pwmenable, 2);
1053static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO,
1054 show_pwmenable, store_pwmenable, 3);
1055static SENSOR_DEVICE_ATTR(pwm1_mode, S_IWUSR | S_IRUGO,
1056 show_pwm_mode, store_pwm_mode, 0);
1057static SENSOR_DEVICE_ATTR(pwm2_mode, S_IWUSR | S_IRUGO,
1058 show_pwm_mode, store_pwm_mode, 1);
1059static SENSOR_DEVICE_ATTR(pwm3_mode, S_IWUSR | S_IRUGO,
1060 show_pwm_mode, store_pwm_mode, 2);
1061static SENSOR_DEVICE_ATTR(pwm4_mode, S_IWUSR | S_IRUGO,
1062 show_pwm_mode, store_pwm_mode, 3);
1063static SENSOR_DEVICE_ATTR(pwm5_mode, S_IWUSR | S_IRUGO,
1064 show_pwm_mode, store_pwm_mode, 4);
1065static SENSOR_DEVICE_ATTR(pwm6_mode, S_IWUSR | S_IRUGO,
1066 show_pwm_mode, store_pwm_mode, 5);
1067static SENSOR_DEVICE_ATTR(pwm7_mode, S_IWUSR | S_IRUGO,
1068 show_pwm_mode, store_pwm_mode, 6);
1069static SENSOR_DEVICE_ATTR(tolerance1, S_IWUSR | S_IRUGO,
1070 show_tolerance, store_tolerance, 1);
1071static SENSOR_DEVICE_ATTR(tolerance2, S_IWUSR | S_IRUGO,
1072 show_tolerance, store_tolerance, 2);
1073static SENSOR_DEVICE_ATTR(tolerance3, S_IWUSR | S_IRUGO,
1074 show_tolerance, store_tolerance, 3);
1075static SENSOR_DEVICE_ATTR(thermal_cruise1, S_IWUSR | S_IRUGO,
1076 show_thermal_cruise, store_thermal_cruise, 1);
1077static SENSOR_DEVICE_ATTR(thermal_cruise2, S_IWUSR | S_IRUGO,
1078 show_thermal_cruise, store_thermal_cruise, 2);
1079static SENSOR_DEVICE_ATTR(thermal_cruise3, S_IWUSR | S_IRUGO,
1080 show_thermal_cruise, store_thermal_cruise, 3);
1081static SENSOR_DEVICE_ATTR_2(sf2_point1_fan1, S_IRUGO | S_IWUSR,
1082 show_sf2_point, store_sf2_point, 1, 1);
1083static SENSOR_DEVICE_ATTR_2(sf2_point2_fan1, S_IRUGO | S_IWUSR,
1084 show_sf2_point, store_sf2_point, 2, 1);
1085static SENSOR_DEVICE_ATTR_2(sf2_point3_fan1, S_IRUGO | S_IWUSR,
1086 show_sf2_point, store_sf2_point, 3, 1);
1087static SENSOR_DEVICE_ATTR_2(sf2_point4_fan1, S_IRUGO | S_IWUSR,
1088 show_sf2_point, store_sf2_point, 4, 1);
1089static SENSOR_DEVICE_ATTR_2(sf2_point1_fan2, S_IRUGO | S_IWUSR,
1090 show_sf2_point, store_sf2_point, 1, 2);
1091static SENSOR_DEVICE_ATTR_2(sf2_point2_fan2, S_IRUGO | S_IWUSR,
1092 show_sf2_point, store_sf2_point, 2, 2);
1093static SENSOR_DEVICE_ATTR_2(sf2_point3_fan2, S_IRUGO | S_IWUSR,
1094 show_sf2_point, store_sf2_point, 3, 2);
1095static SENSOR_DEVICE_ATTR_2(sf2_point4_fan2, S_IRUGO | S_IWUSR,
1096 show_sf2_point, store_sf2_point, 4, 2);
1097static SENSOR_DEVICE_ATTR_2(sf2_point1_fan3, S_IRUGO | S_IWUSR,
1098 show_sf2_point, store_sf2_point, 1, 3);
1099static SENSOR_DEVICE_ATTR_2(sf2_point2_fan3, S_IRUGO | S_IWUSR,
1100 show_sf2_point, store_sf2_point, 2, 3);
1101static SENSOR_DEVICE_ATTR_2(sf2_point3_fan3, S_IRUGO | S_IWUSR,
1102 show_sf2_point, store_sf2_point, 3, 3);
1103static SENSOR_DEVICE_ATTR_2(sf2_point4_fan3, S_IRUGO | S_IWUSR,
1104 show_sf2_point, store_sf2_point, 4, 3);
1105static SENSOR_DEVICE_ATTR_2(sf2_level1_fan1, S_IRUGO | S_IWUSR,
1106 show_sf2_level, store_sf2_level, 1, 1);
1107static SENSOR_DEVICE_ATTR_2(sf2_level2_fan1, S_IRUGO | S_IWUSR,
1108 show_sf2_level, store_sf2_level, 2, 1);
1109static SENSOR_DEVICE_ATTR_2(sf2_level3_fan1, S_IRUGO | S_IWUSR,
1110 show_sf2_level, store_sf2_level, 3, 1);
1111static SENSOR_DEVICE_ATTR_2(sf2_level1_fan2, S_IRUGO | S_IWUSR,
1112 show_sf2_level, store_sf2_level, 1, 2);
1113static SENSOR_DEVICE_ATTR_2(sf2_level2_fan2, S_IRUGO | S_IWUSR,
1114 show_sf2_level, store_sf2_level, 2, 2);
1115static SENSOR_DEVICE_ATTR_2(sf2_level3_fan2, S_IRUGO | S_IWUSR,
1116 show_sf2_level, store_sf2_level, 3, 2);
1117static SENSOR_DEVICE_ATTR_2(sf2_level1_fan3, S_IRUGO | S_IWUSR,
1118 show_sf2_level, store_sf2_level, 1, 3);
1119static SENSOR_DEVICE_ATTR_2(sf2_level2_fan3, S_IRUGO | S_IWUSR,
1120 show_sf2_level, store_sf2_level, 2, 3);
1121static SENSOR_DEVICE_ATTR_2(sf2_level3_fan3, S_IRUGO | S_IWUSR,
1122 show_sf2_level, store_sf2_level, 3, 3);
1123static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 1);
1124static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 2);
1125static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 3);
1126static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 4);
1127static SENSOR_DEVICE_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 5);
1128static SENSOR_DEVICE_ATTR(fan6_input, S_IRUGO, show_fan, NULL, 6);
1129static SENSOR_DEVICE_ATTR(fan7_input, S_IRUGO, show_fan, NULL, 7);
1130static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO,
1131 show_fan_min, store_fan_min, 1);
1132static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO,
1133 show_fan_min, store_fan_min, 2);
1134static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO,
1135 show_fan_min, store_fan_min, 3);
1136static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO,
1137 show_fan_min, store_fan_min, 4);
1138static SENSOR_DEVICE_ATTR(fan5_min, S_IWUSR | S_IRUGO,
1139 show_fan_min, store_fan_min, 5);
1140static SENSOR_DEVICE_ATTR(fan6_min, S_IWUSR | S_IRUGO,
1141 show_fan_min, store_fan_min, 6);
1142static SENSOR_DEVICE_ATTR(fan7_min, S_IWUSR | S_IRUGO,
1143 show_fan_min, store_fan_min, 7);
1144static SENSOR_DEVICE_ATTR(fan1_div, S_IWUSR | S_IRUGO,
1145 show_fan_div, store_fan_div, 1);
1146static SENSOR_DEVICE_ATTR(fan2_div, S_IWUSR | S_IRUGO,
1147 show_fan_div, store_fan_div, 2);
1148static SENSOR_DEVICE_ATTR(fan3_div, S_IWUSR | S_IRUGO,
1149 show_fan_div, store_fan_div, 3);
1150static SENSOR_DEVICE_ATTR(fan4_div, S_IWUSR | S_IRUGO,
1151 show_fan_div, store_fan_div, 4);
1152static SENSOR_DEVICE_ATTR(fan5_div, S_IWUSR | S_IRUGO,
1153 show_fan_div, store_fan_div, 5);
1154static SENSOR_DEVICE_ATTR(fan6_div, S_IWUSR | S_IRUGO,
1155 show_fan_div, store_fan_div, 6);
1156static SENSOR_DEVICE_ATTR(fan7_div, S_IWUSR | S_IRUGO,
1157 show_fan_div, store_fan_div, 7);
1158
1159static struct attribute *w83792d_attributes_fan[4][7] = {
1160 {
1161 &sensor_dev_attr_fan4_input.dev_attr.attr,
1162 &sensor_dev_attr_fan4_min.dev_attr.attr,
1163 &sensor_dev_attr_fan4_div.dev_attr.attr,
1164 &sensor_dev_attr_fan4_alarm.dev_attr.attr,
1165 &sensor_dev_attr_pwm4.dev_attr.attr,
1166 &sensor_dev_attr_pwm4_mode.dev_attr.attr,
1167 NULL
1168 }, {
1169 &sensor_dev_attr_fan5_input.dev_attr.attr,
1170 &sensor_dev_attr_fan5_min.dev_attr.attr,
1171 &sensor_dev_attr_fan5_div.dev_attr.attr,
1172 &sensor_dev_attr_fan5_alarm.dev_attr.attr,
1173 &sensor_dev_attr_pwm5.dev_attr.attr,
1174 &sensor_dev_attr_pwm5_mode.dev_attr.attr,
1175 NULL
1176 }, {
1177 &sensor_dev_attr_fan6_input.dev_attr.attr,
1178 &sensor_dev_attr_fan6_min.dev_attr.attr,
1179 &sensor_dev_attr_fan6_div.dev_attr.attr,
1180 &sensor_dev_attr_fan6_alarm.dev_attr.attr,
1181 &sensor_dev_attr_pwm6.dev_attr.attr,
1182 &sensor_dev_attr_pwm6_mode.dev_attr.attr,
1183 NULL
1184 }, {
1185 &sensor_dev_attr_fan7_input.dev_attr.attr,
1186 &sensor_dev_attr_fan7_min.dev_attr.attr,
1187 &sensor_dev_attr_fan7_div.dev_attr.attr,
1188 &sensor_dev_attr_fan7_alarm.dev_attr.attr,
1189 &sensor_dev_attr_pwm7.dev_attr.attr,
1190 &sensor_dev_attr_pwm7_mode.dev_attr.attr,
1191 NULL
1192 }
1193};
1194
1195static const struct attribute_group w83792d_group_fan[4] = {
1196 { .attrs = w83792d_attributes_fan[0] },
1197 { .attrs = w83792d_attributes_fan[1] },
1198 { .attrs = w83792d_attributes_fan[2] },
1199 { .attrs = w83792d_attributes_fan[3] },
1200};
1201
1202static struct attribute *w83792d_attributes[] = {
1203 &sensor_dev_attr_in0_input.dev_attr.attr,
1204 &sensor_dev_attr_in0_max.dev_attr.attr,
1205 &sensor_dev_attr_in0_min.dev_attr.attr,
1206 &sensor_dev_attr_in1_input.dev_attr.attr,
1207 &sensor_dev_attr_in1_max.dev_attr.attr,
1208 &sensor_dev_attr_in1_min.dev_attr.attr,
1209 &sensor_dev_attr_in2_input.dev_attr.attr,
1210 &sensor_dev_attr_in2_max.dev_attr.attr,
1211 &sensor_dev_attr_in2_min.dev_attr.attr,
1212 &sensor_dev_attr_in3_input.dev_attr.attr,
1213 &sensor_dev_attr_in3_max.dev_attr.attr,
1214 &sensor_dev_attr_in3_min.dev_attr.attr,
1215 &sensor_dev_attr_in4_input.dev_attr.attr,
1216 &sensor_dev_attr_in4_max.dev_attr.attr,
1217 &sensor_dev_attr_in4_min.dev_attr.attr,
1218 &sensor_dev_attr_in5_input.dev_attr.attr,
1219 &sensor_dev_attr_in5_max.dev_attr.attr,
1220 &sensor_dev_attr_in5_min.dev_attr.attr,
1221 &sensor_dev_attr_in6_input.dev_attr.attr,
1222 &sensor_dev_attr_in6_max.dev_attr.attr,
1223 &sensor_dev_attr_in6_min.dev_attr.attr,
1224 &sensor_dev_attr_in7_input.dev_attr.attr,
1225 &sensor_dev_attr_in7_max.dev_attr.attr,
1226 &sensor_dev_attr_in7_min.dev_attr.attr,
1227 &sensor_dev_attr_in8_input.dev_attr.attr,
1228 &sensor_dev_attr_in8_max.dev_attr.attr,
1229 &sensor_dev_attr_in8_min.dev_attr.attr,
1230 &sensor_dev_attr_in0_alarm.dev_attr.attr,
1231 &sensor_dev_attr_in1_alarm.dev_attr.attr,
1232 &sensor_dev_attr_in2_alarm.dev_attr.attr,
1233 &sensor_dev_attr_in3_alarm.dev_attr.attr,
1234 &sensor_dev_attr_in4_alarm.dev_attr.attr,
1235 &sensor_dev_attr_in5_alarm.dev_attr.attr,
1236 &sensor_dev_attr_in6_alarm.dev_attr.attr,
1237 &sensor_dev_attr_in7_alarm.dev_attr.attr,
1238 &sensor_dev_attr_in8_alarm.dev_attr.attr,
1239 &sensor_dev_attr_temp1_input.dev_attr.attr,
1240 &sensor_dev_attr_temp1_max.dev_attr.attr,
1241 &sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
1242 &sensor_dev_attr_temp2_input.dev_attr.attr,
1243 &sensor_dev_attr_temp2_max.dev_attr.attr,
1244 &sensor_dev_attr_temp2_max_hyst.dev_attr.attr,
1245 &sensor_dev_attr_temp3_input.dev_attr.attr,
1246 &sensor_dev_attr_temp3_max.dev_attr.attr,
1247 &sensor_dev_attr_temp3_max_hyst.dev_attr.attr,
1248 &sensor_dev_attr_temp1_alarm.dev_attr.attr,
1249 &sensor_dev_attr_temp2_alarm.dev_attr.attr,
1250 &sensor_dev_attr_temp3_alarm.dev_attr.attr,
1251 &sensor_dev_attr_pwm1.dev_attr.attr,
1252 &sensor_dev_attr_pwm1_mode.dev_attr.attr,
1253 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
1254 &sensor_dev_attr_pwm2.dev_attr.attr,
1255 &sensor_dev_attr_pwm2_mode.dev_attr.attr,
1256 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
1257 &sensor_dev_attr_pwm3.dev_attr.attr,
1258 &sensor_dev_attr_pwm3_mode.dev_attr.attr,
1259 &sensor_dev_attr_pwm3_enable.dev_attr.attr,
1260 &dev_attr_alarms.attr,
1261 &dev_attr_intrusion0_alarm.attr,
1262 &sensor_dev_attr_tolerance1.dev_attr.attr,
1263 &sensor_dev_attr_thermal_cruise1.dev_attr.attr,
1264 &sensor_dev_attr_tolerance2.dev_attr.attr,
1265 &sensor_dev_attr_thermal_cruise2.dev_attr.attr,
1266 &sensor_dev_attr_tolerance3.dev_attr.attr,
1267 &sensor_dev_attr_thermal_cruise3.dev_attr.attr,
1268 &sensor_dev_attr_sf2_point1_fan1.dev_attr.attr,
1269 &sensor_dev_attr_sf2_point2_fan1.dev_attr.attr,
1270 &sensor_dev_attr_sf2_point3_fan1.dev_attr.attr,
1271 &sensor_dev_attr_sf2_point4_fan1.dev_attr.attr,
1272 &sensor_dev_attr_sf2_point1_fan2.dev_attr.attr,
1273 &sensor_dev_attr_sf2_point2_fan2.dev_attr.attr,
1274 &sensor_dev_attr_sf2_point3_fan2.dev_attr.attr,
1275 &sensor_dev_attr_sf2_point4_fan2.dev_attr.attr,
1276 &sensor_dev_attr_sf2_point1_fan3.dev_attr.attr,
1277 &sensor_dev_attr_sf2_point2_fan3.dev_attr.attr,
1278 &sensor_dev_attr_sf2_point3_fan3.dev_attr.attr,
1279 &sensor_dev_attr_sf2_point4_fan3.dev_attr.attr,
1280 &sensor_dev_attr_sf2_level1_fan1.dev_attr.attr,
1281 &sensor_dev_attr_sf2_level2_fan1.dev_attr.attr,
1282 &sensor_dev_attr_sf2_level3_fan1.dev_attr.attr,
1283 &sensor_dev_attr_sf2_level1_fan2.dev_attr.attr,
1284 &sensor_dev_attr_sf2_level2_fan2.dev_attr.attr,
1285 &sensor_dev_attr_sf2_level3_fan2.dev_attr.attr,
1286 &sensor_dev_attr_sf2_level1_fan3.dev_attr.attr,
1287 &sensor_dev_attr_sf2_level2_fan3.dev_attr.attr,
1288 &sensor_dev_attr_sf2_level3_fan3.dev_attr.attr,
1289 &sensor_dev_attr_fan1_input.dev_attr.attr,
1290 &sensor_dev_attr_fan1_min.dev_attr.attr,
1291 &sensor_dev_attr_fan1_div.dev_attr.attr,
1292 &sensor_dev_attr_fan1_alarm.dev_attr.attr,
1293 &sensor_dev_attr_fan2_input.dev_attr.attr,
1294 &sensor_dev_attr_fan2_min.dev_attr.attr,
1295 &sensor_dev_attr_fan2_div.dev_attr.attr,
1296 &sensor_dev_attr_fan2_alarm.dev_attr.attr,
1297 &sensor_dev_attr_fan3_input.dev_attr.attr,
1298 &sensor_dev_attr_fan3_min.dev_attr.attr,
1299 &sensor_dev_attr_fan3_div.dev_attr.attr,
1300 &sensor_dev_attr_fan3_alarm.dev_attr.attr,
1301 NULL
1302};
1303
1304static const struct attribute_group w83792d_group = {
1305 .attrs = w83792d_attributes,
1306};
1307
1308/* Return 0 if detection is successful, -ENODEV otherwise */
1309static int
1310w83792d_detect(struct i2c_client *client, struct i2c_board_info *info)
1311{
1312 struct i2c_adapter *adapter = client->adapter;
1313 int val1, val2;
1314 unsigned short address = client->addr;
1315
1316 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
1317 return -ENODEV;
1318
1319 if (w83792d_read_value(client, W83792D_REG_CONFIG) & 0x80)
1320 return -ENODEV;
1321
1322 val1 = w83792d_read_value(client, W83792D_REG_BANK);
1323 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN);
1324 /* Check for Winbond ID if in bank 0 */
1325 if (!(val1 & 0x07)) { /* is Bank0 */
1326 if ((!(val1 & 0x80) && val2 != 0xa3) ||
1327 ((val1 & 0x80) && val2 != 0x5c))
1328 return -ENODEV;
1329 }
1330 /*
1331 * If Winbond chip, address of chip and W83792D_REG_I2C_ADDR
1332 * should match
1333 */
1334 if (w83792d_read_value(client, W83792D_REG_I2C_ADDR) != address)
1335 return -ENODEV;
1336
1337 /* Put it now into bank 0 and Vendor ID High Byte */
1338 w83792d_write_value(client,
1339 W83792D_REG_BANK,
1340 (w83792d_read_value(client,
1341 W83792D_REG_BANK) & 0x78) | 0x80);
1342
1343 /* Determine the chip type. */
1344 val1 = w83792d_read_value(client, W83792D_REG_WCHIPID);
1345 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN);
1346 if (val1 != 0x7a || val2 != 0x5c)
1347 return -ENODEV;
1348
1349 strscpy(info->type, "w83792d", I2C_NAME_SIZE);
1350
1351 return 0;
1352}
1353
1354static int
1355w83792d_probe(struct i2c_client *client)
1356{
1357 struct w83792d_data *data;
1358 struct device *dev = &client->dev;
1359 int i, val1, err;
1360
1361 data = devm_kzalloc(dev, sizeof(struct w83792d_data), GFP_KERNEL);
1362 if (!data)
1363 return -ENOMEM;
1364
1365 i2c_set_clientdata(client, data);
1366 mutex_init(&data->update_lock);
1367
1368 err = w83792d_detect_subclients(client);
1369 if (err)
1370 return err;
1371
1372 /* Initialize the chip */
1373 w83792d_init_client(client);
1374
1375 /* A few vars need to be filled upon startup */
1376 for (i = 0; i < 7; i++) {
1377 data->fan_min[i] = w83792d_read_value(client,
1378 W83792D_REG_FAN_MIN[i]);
1379 }
1380
1381 /* Register sysfs hooks */
1382 err = sysfs_create_group(&dev->kobj, &w83792d_group);
1383 if (err)
1384 return err;
1385
1386 /*
1387 * Read GPIO enable register to check if pins for fan 4,5 are used as
1388 * GPIO
1389 */
1390 val1 = w83792d_read_value(client, W83792D_REG_GPIO_EN);
1391
1392 if (!(val1 & 0x40)) {
1393 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[0]);
1394 if (err)
1395 goto exit_remove_files;
1396 }
1397
1398 if (!(val1 & 0x20)) {
1399 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[1]);
1400 if (err)
1401 goto exit_remove_files;
1402 }
1403
1404 val1 = w83792d_read_value(client, W83792D_REG_PIN);
1405 if (val1 & 0x40) {
1406 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[2]);
1407 if (err)
1408 goto exit_remove_files;
1409 }
1410
1411 if (val1 & 0x04) {
1412 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[3]);
1413 if (err)
1414 goto exit_remove_files;
1415 }
1416
1417 data->hwmon_dev = hwmon_device_register(dev);
1418 if (IS_ERR(data->hwmon_dev)) {
1419 err = PTR_ERR(data->hwmon_dev);
1420 goto exit_remove_files;
1421 }
1422
1423 return 0;
1424
1425exit_remove_files:
1426 sysfs_remove_group(&dev->kobj, &w83792d_group);
1427 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++)
1428 sysfs_remove_group(&dev->kobj, &w83792d_group_fan[i]);
1429 return err;
1430}
1431
1432static void
1433w83792d_remove(struct i2c_client *client)
1434{
1435 struct w83792d_data *data = i2c_get_clientdata(client);
1436 int i;
1437
1438 hwmon_device_unregister(data->hwmon_dev);
1439 sysfs_remove_group(&client->dev.kobj, &w83792d_group);
1440 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++)
1441 sysfs_remove_group(&client->dev.kobj,
1442 &w83792d_group_fan[i]);
1443}
1444
1445static void
1446w83792d_init_client(struct i2c_client *client)
1447{
1448 u8 temp2_cfg, temp3_cfg, vid_in_b;
1449
1450 if (init)
1451 w83792d_write_value(client, W83792D_REG_CONFIG, 0x80);
1452
1453 /*
1454 * Clear the bit6 of W83792D_REG_VID_IN_B(set it into 0):
1455 * W83792D_REG_VID_IN_B bit6 = 0: the high/low limit of
1456 * vin0/vin1 can be modified by user;
1457 * W83792D_REG_VID_IN_B bit6 = 1: the high/low limit of
1458 * vin0/vin1 auto-updated, can NOT be modified by user.
1459 */
1460 vid_in_b = w83792d_read_value(client, W83792D_REG_VID_IN_B);
1461 w83792d_write_value(client, W83792D_REG_VID_IN_B,
1462 vid_in_b & 0xbf);
1463
1464 temp2_cfg = w83792d_read_value(client, W83792D_REG_TEMP2_CONFIG);
1465 temp3_cfg = w83792d_read_value(client, W83792D_REG_TEMP3_CONFIG);
1466 w83792d_write_value(client, W83792D_REG_TEMP2_CONFIG,
1467 temp2_cfg & 0xe6);
1468 w83792d_write_value(client, W83792D_REG_TEMP3_CONFIG,
1469 temp3_cfg & 0xe6);
1470
1471 /* Start monitoring */
1472 w83792d_write_value(client, W83792D_REG_CONFIG,
1473 (w83792d_read_value(client,
1474 W83792D_REG_CONFIG) & 0xf7)
1475 | 0x01);
1476}
1477
1478static struct w83792d_data *w83792d_update_device(struct device *dev)
1479{
1480 struct i2c_client *client = to_i2c_client(dev);
1481 struct w83792d_data *data = i2c_get_clientdata(client);
1482 int i, j;
1483 u8 reg_array_tmp[4], reg_tmp;
1484
1485 mutex_lock(&data->update_lock);
1486
1487 if (time_after
1488 (jiffies - data->last_updated, (unsigned long) (HZ * 3))
1489 || time_before(jiffies, data->last_updated) || !data->valid) {
1490 dev_dbg(dev, "Starting device update\n");
1491
1492 /* Update the voltages measured value and limits */
1493 for (i = 0; i < 9; i++) {
1494 data->in[i] = w83792d_read_value(client,
1495 W83792D_REG_IN[i]);
1496 data->in_max[i] = w83792d_read_value(client,
1497 W83792D_REG_IN_MAX[i]);
1498 data->in_min[i] = w83792d_read_value(client,
1499 W83792D_REG_IN_MIN[i]);
1500 }
1501 data->low_bits = w83792d_read_value(client,
1502 W83792D_REG_LOW_BITS1) +
1503 (w83792d_read_value(client,
1504 W83792D_REG_LOW_BITS2) << 8);
1505 for (i = 0; i < 7; i++) {
1506 /* Update the Fan measured value and limits */
1507 data->fan[i] = w83792d_read_value(client,
1508 W83792D_REG_FAN[i]);
1509 data->fan_min[i] = w83792d_read_value(client,
1510 W83792D_REG_FAN_MIN[i]);
1511 /* Update the PWM/DC Value and PWM/DC flag */
1512 data->pwm[i] = w83792d_read_value(client,
1513 W83792D_REG_PWM[i]);
1514 }
1515
1516 reg_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG);
1517 data->pwmenable[0] = reg_tmp & 0x03;
1518 data->pwmenable[1] = (reg_tmp>>2) & 0x03;
1519 data->pwmenable[2] = (reg_tmp>>4) & 0x03;
1520
1521 for (i = 0; i < 3; i++) {
1522 data->temp1[i] = w83792d_read_value(client,
1523 W83792D_REG_TEMP1[i]);
1524 }
1525 for (i = 0; i < 2; i++) {
1526 for (j = 0; j < 6; j++) {
1527 data->temp_add[i][j] = w83792d_read_value(
1528 client, W83792D_REG_TEMP_ADD[i][j]);
1529 }
1530 }
1531
1532 /* Update the Fan Divisor */
1533 for (i = 0; i < 4; i++) {
1534 reg_array_tmp[i] = w83792d_read_value(client,
1535 W83792D_REG_FAN_DIV[i]);
1536 }
1537 data->fan_div[0] = reg_array_tmp[0] & 0x07;
1538 data->fan_div[1] = (reg_array_tmp[0] >> 4) & 0x07;
1539 data->fan_div[2] = reg_array_tmp[1] & 0x07;
1540 data->fan_div[3] = (reg_array_tmp[1] >> 4) & 0x07;
1541 data->fan_div[4] = reg_array_tmp[2] & 0x07;
1542 data->fan_div[5] = (reg_array_tmp[2] >> 4) & 0x07;
1543 data->fan_div[6] = reg_array_tmp[3] & 0x07;
1544
1545 /* Update the realtime status */
1546 data->alarms = w83792d_read_value(client, W83792D_REG_ALARM1) +
1547 (w83792d_read_value(client, W83792D_REG_ALARM2) << 8) +
1548 (w83792d_read_value(client, W83792D_REG_ALARM3) << 16);
1549
1550 /* Update CaseOpen status and it's CLR_CHS. */
1551 data->chassis = (w83792d_read_value(client,
1552 W83792D_REG_CHASSIS) >> 5) & 0x01;
1553
1554 /* Update Thermal Cruise/Smart Fan I target value */
1555 for (i = 0; i < 3; i++) {
1556 data->thermal_cruise[i] =
1557 w83792d_read_value(client,
1558 W83792D_REG_THERMAL[i]) & 0x7f;
1559 }
1560
1561 /* Update Smart Fan I/II tolerance */
1562 reg_tmp = w83792d_read_value(client, W83792D_REG_TOLERANCE[0]);
1563 data->tolerance[0] = reg_tmp & 0x0f;
1564 data->tolerance[1] = (reg_tmp >> 4) & 0x0f;
1565 data->tolerance[2] = w83792d_read_value(client,
1566 W83792D_REG_TOLERANCE[2]) & 0x0f;
1567
1568 /* Update Smart Fan II temperature points */
1569 for (i = 0; i < 3; i++) {
1570 for (j = 0; j < 4; j++) {
1571 data->sf2_points[i][j]
1572 = w83792d_read_value(client,
1573 W83792D_REG_POINTS[i][j]) & 0x7f;
1574 }
1575 }
1576
1577 /* Update Smart Fan II duty cycle levels */
1578 for (i = 0; i < 3; i++) {
1579 reg_tmp = w83792d_read_value(client,
1580 W83792D_REG_LEVELS[i][0]);
1581 data->sf2_levels[i][0] = reg_tmp & 0x0f;
1582 data->sf2_levels[i][1] = (reg_tmp >> 4) & 0x0f;
1583 reg_tmp = w83792d_read_value(client,
1584 W83792D_REG_LEVELS[i][2]);
1585 data->sf2_levels[i][2] = (reg_tmp >> 4) & 0x0f;
1586 data->sf2_levels[i][3] = reg_tmp & 0x0f;
1587 }
1588
1589 data->last_updated = jiffies;
1590 data->valid = true;
1591 }
1592
1593 mutex_unlock(&data->update_lock);
1594
1595#ifdef DEBUG
1596 w83792d_print_debug(data, dev);
1597#endif
1598
1599 return data;
1600}
1601
1602#ifdef DEBUG
1603static void w83792d_print_debug(struct w83792d_data *data, struct device *dev)
1604{
1605 int i = 0, j = 0;
1606 dev_dbg(dev, "==========The following is the debug message...========\n");
1607 dev_dbg(dev, "9 set of Voltages: =====>\n");
1608 for (i = 0; i < 9; i++) {
1609 dev_dbg(dev, "vin[%d] is: 0x%x\n", i, data->in[i]);
1610 dev_dbg(dev, "vin[%d] max is: 0x%x\n", i, data->in_max[i]);
1611 dev_dbg(dev, "vin[%d] min is: 0x%x\n", i, data->in_min[i]);
1612 }
1613 dev_dbg(dev, "Low Bit1 is: 0x%x\n", data->low_bits & 0xff);
1614 dev_dbg(dev, "Low Bit2 is: 0x%x\n", data->low_bits >> 8);
1615 dev_dbg(dev, "7 set of Fan Counts and Duty Cycles: =====>\n");
1616 for (i = 0; i < 7; i++) {
1617 dev_dbg(dev, "fan[%d] is: 0x%x\n", i, data->fan[i]);
1618 dev_dbg(dev, "fan[%d] min is: 0x%x\n", i, data->fan_min[i]);
1619 dev_dbg(dev, "pwm[%d] is: 0x%x\n", i, data->pwm[i]);
1620 }
1621 dev_dbg(dev, "3 set of Temperatures: =====>\n");
1622 for (i = 0; i < 3; i++)
1623 dev_dbg(dev, "temp1[%d] is: 0x%x\n", i, data->temp1[i]);
1624
1625 for (i = 0; i < 2; i++) {
1626 for (j = 0; j < 6; j++) {
1627 dev_dbg(dev, "temp_add[%d][%d] is: 0x%x\n", i, j,
1628 data->temp_add[i][j]);
1629 }
1630 }
1631
1632 for (i = 0; i < 7; i++)
1633 dev_dbg(dev, "fan_div[%d] is: 0x%x\n", i, data->fan_div[i]);
1634
1635 dev_dbg(dev, "==========End of the debug message...================\n");
1636 dev_dbg(dev, "\n");
1637}
1638#endif
1639
1640module_i2c_driver(w83792d_driver);
1641
1642MODULE_AUTHOR("Shane Huang (Winbond)");
1643MODULE_DESCRIPTION("W83792AD/D driver for linux-2.6");
1644MODULE_LICENSE("GPL");