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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 <r.marek@assembler.cz>
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 char valid; /* !=0 if following fields are valid */
265 unsigned long last_updated; /* In jiffies */
266
267 /* array of 2 pointers to subclients */
268 struct i2c_client *lm75[2];
269
270 u8 in[9]; /* Register value */
271 u8 in_max[9]; /* Register value */
272 u8 in_min[9]; /* Register value */
273 u16 low_bits; /* Additional resolution to voltage in6-0 */
274 u8 fan[7]; /* Register value */
275 u8 fan_min[7]; /* Register value */
276 u8 temp1[3]; /* current, over, thyst */
277 u8 temp_add[2][6]; /* Register value */
278 u8 fan_div[7]; /* Register encoding, shifted right */
279 u8 pwm[7]; /* The 7 PWM outputs */
280 u8 pwmenable[3];
281 u32 alarms; /* realtime status register encoding,combined */
282 u8 chassis; /* Chassis status */
283 u8 thermal_cruise[3]; /* Smart FanI: Fan1,2,3 target value */
284 u8 tolerance[3]; /* Fan1,2,3 tolerance(Smart Fan I/II) */
285 u8 sf2_points[3][4]; /* Smart FanII: Fan1,2,3 temperature points */
286 u8 sf2_levels[3][4]; /* Smart FanII: Fan1,2,3 duty cycle levels */
287};
288
289static int w83792d_probe(struct i2c_client *client,
290 const struct i2c_device_id *id);
291static int w83792d_detect(struct i2c_client *client,
292 struct i2c_board_info *info);
293static int w83792d_remove(struct i2c_client *client);
294static struct w83792d_data *w83792d_update_device(struct device *dev);
295
296#ifdef DEBUG
297static void w83792d_print_debug(struct w83792d_data *data, struct device *dev);
298#endif
299
300static void w83792d_init_client(struct i2c_client *client);
301
302static const struct i2c_device_id w83792d_id[] = {
303 { "w83792d", 0 },
304 { }
305};
306MODULE_DEVICE_TABLE(i2c, w83792d_id);
307
308static struct i2c_driver w83792d_driver = {
309 .class = I2C_CLASS_HWMON,
310 .driver = {
311 .name = "w83792d",
312 },
313 .probe = w83792d_probe,
314 .remove = w83792d_remove,
315 .id_table = w83792d_id,
316 .detect = w83792d_detect,
317 .address_list = normal_i2c,
318};
319
320static inline long in_count_from_reg(int nr, struct w83792d_data *data)
321{
322 /* in7 and in8 do not have low bits, but the formula still works */
323 return (data->in[nr] << 2) | ((data->low_bits >> (2 * nr)) & 0x03);
324}
325
326/*
327 * The SMBus locks itself. The Winbond W83792D chip has a bank register,
328 * but the driver only accesses registers in bank 0, so we don't have
329 * to switch banks and lock access between switches.
330 */
331static inline int w83792d_read_value(struct i2c_client *client, u8 reg)
332{
333 return i2c_smbus_read_byte_data(client, reg);
334}
335
336static inline int
337w83792d_write_value(struct i2c_client *client, u8 reg, u8 value)
338{
339 return i2c_smbus_write_byte_data(client, reg, value);
340}
341
342/* following are the sysfs callback functions */
343static ssize_t show_in(struct device *dev, struct device_attribute *attr,
344 char *buf)
345{
346 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
347 int nr = sensor_attr->index;
348 struct w83792d_data *data = w83792d_update_device(dev);
349 return sprintf(buf, "%ld\n",
350 IN_FROM_REG(nr, in_count_from_reg(nr, data)));
351}
352
353#define show_in_reg(reg) \
354static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
355 char *buf) \
356{ \
357 struct sensor_device_attribute *sensor_attr \
358 = to_sensor_dev_attr(attr); \
359 int nr = sensor_attr->index; \
360 struct w83792d_data *data = w83792d_update_device(dev); \
361 return sprintf(buf, "%ld\n", \
362 (long)(IN_FROM_REG(nr, data->reg[nr]) * 4)); \
363}
364
365show_in_reg(in_min);
366show_in_reg(in_max);
367
368#define store_in_reg(REG, reg) \
369static ssize_t store_in_##reg(struct device *dev, \
370 struct device_attribute *attr, \
371 const char *buf, size_t count) \
372{ \
373 struct sensor_device_attribute *sensor_attr \
374 = to_sensor_dev_attr(attr); \
375 int nr = sensor_attr->index; \
376 struct i2c_client *client = to_i2c_client(dev); \
377 struct w83792d_data *data = i2c_get_clientdata(client); \
378 unsigned long val; \
379 int err = kstrtoul(buf, 10, &val); \
380 if (err) \
381 return err; \
382 mutex_lock(&data->update_lock); \
383 data->in_##reg[nr] = clamp_val(IN_TO_REG(nr, val) / 4, 0, 255); \
384 w83792d_write_value(client, W83792D_REG_IN_##REG[nr], \
385 data->in_##reg[nr]); \
386 mutex_unlock(&data->update_lock); \
387 \
388 return count; \
389}
390store_in_reg(MIN, min);
391store_in_reg(MAX, max);
392
393#define show_fan_reg(reg) \
394static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
395 char *buf) \
396{ \
397 struct sensor_device_attribute *sensor_attr \
398 = to_sensor_dev_attr(attr); \
399 int nr = sensor_attr->index - 1; \
400 struct w83792d_data *data = w83792d_update_device(dev); \
401 return sprintf(buf, "%d\n", \
402 FAN_FROM_REG(data->reg[nr], DIV_FROM_REG(data->fan_div[nr]))); \
403}
404
405show_fan_reg(fan);
406show_fan_reg(fan_min);
407
408static ssize_t
409store_fan_min(struct device *dev, struct device_attribute *attr,
410 const char *buf, size_t count)
411{
412 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
413 int nr = sensor_attr->index - 1;
414 struct i2c_client *client = to_i2c_client(dev);
415 struct w83792d_data *data = i2c_get_clientdata(client);
416 unsigned long val;
417 int err;
418
419 err = kstrtoul(buf, 10, &val);
420 if (err)
421 return err;
422
423 mutex_lock(&data->update_lock);
424 data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
425 w83792d_write_value(client, W83792D_REG_FAN_MIN[nr],
426 data->fan_min[nr]);
427 mutex_unlock(&data->update_lock);
428
429 return count;
430}
431
432static ssize_t
433show_fan_div(struct device *dev, struct device_attribute *attr,
434 char *buf)
435{
436 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
437 int nr = sensor_attr->index;
438 struct w83792d_data *data = w83792d_update_device(dev);
439 return sprintf(buf, "%u\n", DIV_FROM_REG(data->fan_div[nr - 1]));
440}
441
442/*
443 * Note: we save and restore the fan minimum here, because its value is
444 * determined in part by the fan divisor. This follows the principle of
445 * least surprise; the user doesn't expect the fan minimum to change just
446 * because the divisor changed.
447 */
448static ssize_t
449store_fan_div(struct device *dev, struct device_attribute *attr,
450 const char *buf, size_t count)
451{
452 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
453 int nr = sensor_attr->index - 1;
454 struct i2c_client *client = to_i2c_client(dev);
455 struct w83792d_data *data = i2c_get_clientdata(client);
456 unsigned long min;
457 /*u8 reg;*/
458 u8 fan_div_reg = 0;
459 u8 tmp_fan_div;
460 unsigned long val;
461 int err;
462
463 err = kstrtoul(buf, 10, &val);
464 if (err)
465 return err;
466
467 /* Save fan_min */
468 mutex_lock(&data->update_lock);
469 min = FAN_FROM_REG(data->fan_min[nr],
470 DIV_FROM_REG(data->fan_div[nr]));
471
472 data->fan_div[nr] = DIV_TO_REG(val);
473
474 fan_div_reg = w83792d_read_value(client, W83792D_REG_FAN_DIV[nr >> 1]);
475 fan_div_reg &= (nr & 0x01) ? 0x8f : 0xf8;
476 tmp_fan_div = (nr & 0x01) ? (((data->fan_div[nr]) << 4) & 0x70)
477 : ((data->fan_div[nr]) & 0x07);
478 w83792d_write_value(client, W83792D_REG_FAN_DIV[nr >> 1],
479 fan_div_reg | tmp_fan_div);
480
481 /* Restore fan_min */
482 data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
483 w83792d_write_value(client, W83792D_REG_FAN_MIN[nr], data->fan_min[nr]);
484 mutex_unlock(&data->update_lock);
485
486 return count;
487}
488
489/* read/write the temperature1, includes measured value and limits */
490
491static ssize_t show_temp1(struct device *dev, struct device_attribute *attr,
492 char *buf)
493{
494 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
495 int nr = sensor_attr->index;
496 struct w83792d_data *data = w83792d_update_device(dev);
497 return sprintf(buf, "%d\n", TEMP1_FROM_REG(data->temp1[nr]));
498}
499
500static ssize_t store_temp1(struct device *dev, struct device_attribute *attr,
501 const char *buf, size_t count)
502{
503 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
504 int nr = sensor_attr->index;
505 struct i2c_client *client = to_i2c_client(dev);
506 struct w83792d_data *data = i2c_get_clientdata(client);
507 long val;
508 int err;
509
510 err = kstrtol(buf, 10, &val);
511 if (err)
512 return err;
513
514 mutex_lock(&data->update_lock);
515 data->temp1[nr] = TEMP1_TO_REG(val);
516 w83792d_write_value(client, W83792D_REG_TEMP1[nr],
517 data->temp1[nr]);
518 mutex_unlock(&data->update_lock);
519
520 return count;
521}
522
523/* read/write the temperature2-3, includes measured value and limits */
524
525static ssize_t show_temp23(struct device *dev, struct device_attribute *attr,
526 char *buf)
527{
528 struct sensor_device_attribute_2 *sensor_attr
529 = to_sensor_dev_attr_2(attr);
530 int nr = sensor_attr->nr;
531 int index = sensor_attr->index;
532 struct w83792d_data *data = w83792d_update_device(dev);
533 return sprintf(buf, "%ld\n",
534 (long)TEMP_ADD_FROM_REG(data->temp_add[nr][index],
535 data->temp_add[nr][index+1]));
536}
537
538static ssize_t store_temp23(struct device *dev, struct device_attribute *attr,
539 const char *buf, size_t count)
540{
541 struct sensor_device_attribute_2 *sensor_attr
542 = to_sensor_dev_attr_2(attr);
543 int nr = sensor_attr->nr;
544 int index = sensor_attr->index;
545 struct i2c_client *client = to_i2c_client(dev);
546 struct w83792d_data *data = i2c_get_clientdata(client);
547 long val;
548 int err;
549
550 err = kstrtol(buf, 10, &val);
551 if (err)
552 return err;
553
554 mutex_lock(&data->update_lock);
555 data->temp_add[nr][index] = TEMP_ADD_TO_REG_HIGH(val);
556 data->temp_add[nr][index+1] = TEMP_ADD_TO_REG_LOW(val);
557 w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index],
558 data->temp_add[nr][index]);
559 w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index+1],
560 data->temp_add[nr][index+1]);
561 mutex_unlock(&data->update_lock);
562
563 return count;
564}
565
566/* get realtime status of all sensors items: voltage, temp, fan */
567static ssize_t
568alarms_show(struct device *dev, struct device_attribute *attr, char *buf)
569{
570 struct w83792d_data *data = w83792d_update_device(dev);
571 return sprintf(buf, "%d\n", data->alarms);
572}
573
574static ssize_t show_alarm(struct device *dev,
575 struct device_attribute *attr, char *buf)
576{
577 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
578 int nr = sensor_attr->index;
579 struct w83792d_data *data = w83792d_update_device(dev);
580 return sprintf(buf, "%d\n", (data->alarms >> nr) & 1);
581}
582
583static ssize_t
584show_pwm(struct device *dev, struct device_attribute *attr,
585 char *buf)
586{
587 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
588 int nr = sensor_attr->index;
589 struct w83792d_data *data = w83792d_update_device(dev);
590 return sprintf(buf, "%d\n", (data->pwm[nr] & 0x0f) << 4);
591}
592
593static ssize_t
594show_pwmenable(struct device *dev, struct device_attribute *attr,
595 char *buf)
596{
597 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
598 int nr = sensor_attr->index - 1;
599 struct w83792d_data *data = w83792d_update_device(dev);
600 long pwm_enable_tmp = 1;
601
602 switch (data->pwmenable[nr]) {
603 case 0:
604 pwm_enable_tmp = 1; /* manual mode */
605 break;
606 case 1:
607 pwm_enable_tmp = 3; /*thermal cruise/Smart Fan I */
608 break;
609 case 2:
610 pwm_enable_tmp = 2; /* Smart Fan II */
611 break;
612 }
613
614 return sprintf(buf, "%ld\n", pwm_enable_tmp);
615}
616
617static ssize_t
618store_pwm(struct device *dev, struct device_attribute *attr,
619 const char *buf, size_t count)
620{
621 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
622 int nr = sensor_attr->index;
623 struct i2c_client *client = to_i2c_client(dev);
624 struct w83792d_data *data = i2c_get_clientdata(client);
625 unsigned long val;
626 int err;
627
628 err = kstrtoul(buf, 10, &val);
629 if (err)
630 return err;
631 val = clamp_val(val, 0, 255) >> 4;
632
633 mutex_lock(&data->update_lock);
634 val |= w83792d_read_value(client, W83792D_REG_PWM[nr]) & 0xf0;
635 data->pwm[nr] = val;
636 w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]);
637 mutex_unlock(&data->update_lock);
638
639 return count;
640}
641
642static ssize_t
643store_pwmenable(struct device *dev, struct device_attribute *attr,
644 const char *buf, size_t count)
645{
646 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
647 int nr = sensor_attr->index - 1;
648 struct i2c_client *client = to_i2c_client(dev);
649 struct w83792d_data *data = i2c_get_clientdata(client);
650 u8 fan_cfg_tmp, cfg1_tmp, cfg2_tmp, cfg3_tmp, cfg4_tmp;
651 unsigned long val;
652 int err;
653
654 err = kstrtoul(buf, 10, &val);
655 if (err)
656 return err;
657
658 if (val < 1 || val > 3)
659 return -EINVAL;
660
661 mutex_lock(&data->update_lock);
662 switch (val) {
663 case 1:
664 data->pwmenable[nr] = 0; /* manual mode */
665 break;
666 case 2:
667 data->pwmenable[nr] = 2; /* Smart Fan II */
668 break;
669 case 3:
670 data->pwmenable[nr] = 1; /* thermal cruise/Smart Fan I */
671 break;
672 }
673 cfg1_tmp = data->pwmenable[0];
674 cfg2_tmp = (data->pwmenable[1]) << 2;
675 cfg3_tmp = (data->pwmenable[2]) << 4;
676 cfg4_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG) & 0xc0;
677 fan_cfg_tmp = ((cfg4_tmp | cfg3_tmp) | cfg2_tmp) | cfg1_tmp;
678 w83792d_write_value(client, W83792D_REG_FAN_CFG, fan_cfg_tmp);
679 mutex_unlock(&data->update_lock);
680
681 return count;
682}
683
684static ssize_t
685show_pwm_mode(struct device *dev, struct device_attribute *attr,
686 char *buf)
687{
688 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
689 int nr = sensor_attr->index;
690 struct w83792d_data *data = w83792d_update_device(dev);
691 return sprintf(buf, "%d\n", data->pwm[nr] >> 7);
692}
693
694static ssize_t
695store_pwm_mode(struct device *dev, struct device_attribute *attr,
696 const char *buf, size_t count)
697{
698 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
699 int nr = sensor_attr->index;
700 struct i2c_client *client = to_i2c_client(dev);
701 struct w83792d_data *data = i2c_get_clientdata(client);
702 unsigned long val;
703 int err;
704
705 err = kstrtoul(buf, 10, &val);
706 if (err)
707 return err;
708 if (val > 1)
709 return -EINVAL;
710
711 mutex_lock(&data->update_lock);
712 data->pwm[nr] = w83792d_read_value(client, W83792D_REG_PWM[nr]);
713 if (val) { /* PWM mode */
714 data->pwm[nr] |= 0x80;
715 } else { /* DC mode */
716 data->pwm[nr] &= 0x7f;
717 }
718 w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]);
719 mutex_unlock(&data->update_lock);
720
721 return count;
722}
723
724static ssize_t
725intrusion0_alarm_show(struct device *dev, struct device_attribute *attr,
726 char *buf)
727{
728 struct w83792d_data *data = w83792d_update_device(dev);
729 return sprintf(buf, "%d\n", data->chassis);
730}
731
732static ssize_t
733intrusion0_alarm_store(struct device *dev, struct device_attribute *attr,
734 const char *buf, size_t count)
735{
736 struct i2c_client *client = to_i2c_client(dev);
737 struct w83792d_data *data = i2c_get_clientdata(client);
738 unsigned long val;
739 u8 reg;
740
741 if (kstrtoul(buf, 10, &val) || val != 0)
742 return -EINVAL;
743
744 mutex_lock(&data->update_lock);
745 reg = w83792d_read_value(client, W83792D_REG_CHASSIS_CLR);
746 w83792d_write_value(client, W83792D_REG_CHASSIS_CLR, reg | 0x80);
747 data->valid = 0; /* Force cache refresh */
748 mutex_unlock(&data->update_lock);
749
750 return count;
751}
752
753/* For Smart Fan I / Thermal Cruise */
754static ssize_t
755show_thermal_cruise(struct device *dev, struct device_attribute *attr,
756 char *buf)
757{
758 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
759 int nr = sensor_attr->index;
760 struct w83792d_data *data = w83792d_update_device(dev);
761 return sprintf(buf, "%ld\n", (long)data->thermal_cruise[nr-1]);
762}
763
764static ssize_t
765store_thermal_cruise(struct device *dev, struct device_attribute *attr,
766 const char *buf, size_t count)
767{
768 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
769 int nr = sensor_attr->index - 1;
770 struct i2c_client *client = to_i2c_client(dev);
771 struct w83792d_data *data = i2c_get_clientdata(client);
772 u8 target_tmp = 0, target_mask = 0;
773 unsigned long val;
774 int err;
775
776 err = kstrtoul(buf, 10, &val);
777 if (err)
778 return err;
779
780 target_tmp = val;
781 target_tmp = target_tmp & 0x7f;
782 mutex_lock(&data->update_lock);
783 target_mask = w83792d_read_value(client,
784 W83792D_REG_THERMAL[nr]) & 0x80;
785 data->thermal_cruise[nr] = clamp_val(target_tmp, 0, 255);
786 w83792d_write_value(client, W83792D_REG_THERMAL[nr],
787 (data->thermal_cruise[nr]) | target_mask);
788 mutex_unlock(&data->update_lock);
789
790 return count;
791}
792
793/* For Smart Fan I/Thermal Cruise and Smart Fan II */
794static ssize_t
795show_tolerance(struct device *dev, struct device_attribute *attr,
796 char *buf)
797{
798 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
799 int nr = sensor_attr->index;
800 struct w83792d_data *data = w83792d_update_device(dev);
801 return sprintf(buf, "%ld\n", (long)data->tolerance[nr-1]);
802}
803
804static ssize_t
805store_tolerance(struct device *dev, struct device_attribute *attr,
806 const char *buf, size_t count)
807{
808 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
809 int nr = sensor_attr->index - 1;
810 struct i2c_client *client = to_i2c_client(dev);
811 struct w83792d_data *data = i2c_get_clientdata(client);
812 u8 tol_tmp, tol_mask;
813 unsigned long val;
814 int err;
815
816 err = kstrtoul(buf, 10, &val);
817 if (err)
818 return err;
819
820 mutex_lock(&data->update_lock);
821 tol_mask = w83792d_read_value(client,
822 W83792D_REG_TOLERANCE[nr]) & ((nr == 1) ? 0x0f : 0xf0);
823 tol_tmp = clamp_val(val, 0, 15);
824 tol_tmp &= 0x0f;
825 data->tolerance[nr] = tol_tmp;
826 if (nr == 1)
827 tol_tmp <<= 4;
828 w83792d_write_value(client, W83792D_REG_TOLERANCE[nr],
829 tol_mask | tol_tmp);
830 mutex_unlock(&data->update_lock);
831
832 return count;
833}
834
835/* For Smart Fan II */
836static ssize_t
837show_sf2_point(struct device *dev, struct device_attribute *attr,
838 char *buf)
839{
840 struct sensor_device_attribute_2 *sensor_attr
841 = to_sensor_dev_attr_2(attr);
842 int nr = sensor_attr->nr;
843 int index = sensor_attr->index;
844 struct w83792d_data *data = w83792d_update_device(dev);
845 return sprintf(buf, "%ld\n", (long)data->sf2_points[index-1][nr-1]);
846}
847
848static ssize_t
849store_sf2_point(struct device *dev, struct device_attribute *attr,
850 const char *buf, size_t count)
851{
852 struct sensor_device_attribute_2 *sensor_attr
853 = to_sensor_dev_attr_2(attr);
854 int nr = sensor_attr->nr - 1;
855 int index = sensor_attr->index - 1;
856 struct i2c_client *client = to_i2c_client(dev);
857 struct w83792d_data *data = i2c_get_clientdata(client);
858 u8 mask_tmp = 0;
859 unsigned long val;
860 int err;
861
862 err = kstrtoul(buf, 10, &val);
863 if (err)
864 return err;
865
866 mutex_lock(&data->update_lock);
867 data->sf2_points[index][nr] = clamp_val(val, 0, 127);
868 mask_tmp = w83792d_read_value(client,
869 W83792D_REG_POINTS[index][nr]) & 0x80;
870 w83792d_write_value(client, W83792D_REG_POINTS[index][nr],
871 mask_tmp|data->sf2_points[index][nr]);
872 mutex_unlock(&data->update_lock);
873
874 return count;
875}
876
877static ssize_t
878show_sf2_level(struct device *dev, struct device_attribute *attr,
879 char *buf)
880{
881 struct sensor_device_attribute_2 *sensor_attr
882 = to_sensor_dev_attr_2(attr);
883 int nr = sensor_attr->nr;
884 int index = sensor_attr->index;
885 struct w83792d_data *data = w83792d_update_device(dev);
886 return sprintf(buf, "%d\n",
887 (((data->sf2_levels[index-1][nr]) * 100) / 15));
888}
889
890static ssize_t
891store_sf2_level(struct device *dev, struct device_attribute *attr,
892 const char *buf, size_t count)
893{
894 struct sensor_device_attribute_2 *sensor_attr
895 = to_sensor_dev_attr_2(attr);
896 int nr = sensor_attr->nr;
897 int index = sensor_attr->index - 1;
898 struct i2c_client *client = to_i2c_client(dev);
899 struct w83792d_data *data = i2c_get_clientdata(client);
900 u8 mask_tmp = 0, level_tmp = 0;
901 unsigned long val;
902 int err;
903
904 err = kstrtoul(buf, 10, &val);
905 if (err)
906 return err;
907
908 mutex_lock(&data->update_lock);
909 data->sf2_levels[index][nr] = clamp_val((val * 15) / 100, 0, 15);
910 mask_tmp = w83792d_read_value(client, W83792D_REG_LEVELS[index][nr])
911 & ((nr == 3) ? 0xf0 : 0x0f);
912 if (nr == 3)
913 level_tmp = data->sf2_levels[index][nr];
914 else
915 level_tmp = data->sf2_levels[index][nr] << 4;
916 w83792d_write_value(client, W83792D_REG_LEVELS[index][nr],
917 level_tmp | mask_tmp);
918 mutex_unlock(&data->update_lock);
919
920 return count;
921}
922
923
924static int
925w83792d_detect_subclients(struct i2c_client *new_client)
926{
927 int i, id;
928 int address = new_client->addr;
929 u8 val;
930 struct i2c_adapter *adapter = new_client->adapter;
931 struct w83792d_data *data = i2c_get_clientdata(new_client);
932
933 id = i2c_adapter_id(adapter);
934 if (force_subclients[0] == id && force_subclients[1] == address) {
935 for (i = 2; i <= 3; i++) {
936 if (force_subclients[i] < 0x48 ||
937 force_subclients[i] > 0x4f) {
938 dev_err(&new_client->dev,
939 "invalid subclient address %d; must be 0x48-0x4f\n",
940 force_subclients[i]);
941 return -ENODEV;
942 }
943 }
944 w83792d_write_value(new_client, W83792D_REG_I2C_SUBADDR,
945 (force_subclients[2] & 0x07) |
946 ((force_subclients[3] & 0x07) << 4));
947 }
948
949 val = w83792d_read_value(new_client, W83792D_REG_I2C_SUBADDR);
950 if (!(val & 0x08))
951 data->lm75[0] = devm_i2c_new_dummy_device(&new_client->dev, adapter,
952 0x48 + (val & 0x7));
953 if (!(val & 0x80)) {
954 if (!IS_ERR(data->lm75[0]) &&
955 ((val & 0x7) == ((val >> 4) & 0x7))) {
956 dev_err(&new_client->dev,
957 "duplicate addresses 0x%x, use force_subclient\n",
958 data->lm75[0]->addr);
959 return -ENODEV;
960 }
961 data->lm75[1] = devm_i2c_new_dummy_device(&new_client->dev, adapter,
962 0x48 + ((val >> 4) & 0x7));
963 }
964
965 return 0;
966}
967
968static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0);
969static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1);
970static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2);
971static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3);
972static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 4);
973static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 5);
974static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 6);
975static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 7);
976static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_in, NULL, 8);
977static SENSOR_DEVICE_ATTR(in0_min, S_IWUSR | S_IRUGO,
978 show_in_min, store_in_min, 0);
979static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO,
980 show_in_min, store_in_min, 1);
981static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO,
982 show_in_min, store_in_min, 2);
983static SENSOR_DEVICE_ATTR(in3_min, S_IWUSR | S_IRUGO,
984 show_in_min, store_in_min, 3);
985static SENSOR_DEVICE_ATTR(in4_min, S_IWUSR | S_IRUGO,
986 show_in_min, store_in_min, 4);
987static SENSOR_DEVICE_ATTR(in5_min, S_IWUSR | S_IRUGO,
988 show_in_min, store_in_min, 5);
989static SENSOR_DEVICE_ATTR(in6_min, S_IWUSR | S_IRUGO,
990 show_in_min, store_in_min, 6);
991static SENSOR_DEVICE_ATTR(in7_min, S_IWUSR | S_IRUGO,
992 show_in_min, store_in_min, 7);
993static SENSOR_DEVICE_ATTR(in8_min, S_IWUSR | S_IRUGO,
994 show_in_min, store_in_min, 8);
995static SENSOR_DEVICE_ATTR(in0_max, S_IWUSR | S_IRUGO,
996 show_in_max, store_in_max, 0);
997static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO,
998 show_in_max, store_in_max, 1);
999static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO,
1000 show_in_max, store_in_max, 2);
1001static SENSOR_DEVICE_ATTR(in3_max, S_IWUSR | S_IRUGO,
1002 show_in_max, store_in_max, 3);
1003static SENSOR_DEVICE_ATTR(in4_max, S_IWUSR | S_IRUGO,
1004 show_in_max, store_in_max, 4);
1005static SENSOR_DEVICE_ATTR(in5_max, S_IWUSR | S_IRUGO,
1006 show_in_max, store_in_max, 5);
1007static SENSOR_DEVICE_ATTR(in6_max, S_IWUSR | S_IRUGO,
1008 show_in_max, store_in_max, 6);
1009static SENSOR_DEVICE_ATTR(in7_max, S_IWUSR | S_IRUGO,
1010 show_in_max, store_in_max, 7);
1011static SENSOR_DEVICE_ATTR(in8_max, S_IWUSR | S_IRUGO,
1012 show_in_max, store_in_max, 8);
1013static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp1, NULL, 0, 0);
1014static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp23, NULL, 0, 0);
1015static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp23, NULL, 1, 0);
1016static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR,
1017 show_temp1, store_temp1, 0, 1);
1018static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp23,
1019 store_temp23, 0, 2);
1020static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp23,
1021 store_temp23, 1, 2);
1022static SENSOR_DEVICE_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR,
1023 show_temp1, store_temp1, 0, 2);
1024static SENSOR_DEVICE_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR,
1025 show_temp23, store_temp23, 0, 4);
1026static SENSOR_DEVICE_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR,
1027 show_temp23, store_temp23, 1, 4);
1028static DEVICE_ATTR_RO(alarms);
1029static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
1030static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
1031static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 2);
1032static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 3);
1033static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 4);
1034static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 5);
1035static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 6);
1036static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 7);
1037static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 8);
1038static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 9);
1039static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 10);
1040static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 11);
1041static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 12);
1042static SENSOR_DEVICE_ATTR(fan7_alarm, S_IRUGO, show_alarm, NULL, 15);
1043static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 19);
1044static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 20);
1045static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 21);
1046static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 22);
1047static SENSOR_DEVICE_ATTR(fan6_alarm, S_IRUGO, show_alarm, NULL, 23);
1048static DEVICE_ATTR_RW(intrusion0_alarm);
1049static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0);
1050static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1);
1051static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2);
1052static SENSOR_DEVICE_ATTR(pwm4, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 3);
1053static SENSOR_DEVICE_ATTR(pwm5, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 4);
1054static SENSOR_DEVICE_ATTR(pwm6, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 5);
1055static SENSOR_DEVICE_ATTR(pwm7, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 6);
1056static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO,
1057 show_pwmenable, store_pwmenable, 1);
1058static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO,
1059 show_pwmenable, store_pwmenable, 2);
1060static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO,
1061 show_pwmenable, store_pwmenable, 3);
1062static SENSOR_DEVICE_ATTR(pwm1_mode, S_IWUSR | S_IRUGO,
1063 show_pwm_mode, store_pwm_mode, 0);
1064static SENSOR_DEVICE_ATTR(pwm2_mode, S_IWUSR | S_IRUGO,
1065 show_pwm_mode, store_pwm_mode, 1);
1066static SENSOR_DEVICE_ATTR(pwm3_mode, S_IWUSR | S_IRUGO,
1067 show_pwm_mode, store_pwm_mode, 2);
1068static SENSOR_DEVICE_ATTR(pwm4_mode, S_IWUSR | S_IRUGO,
1069 show_pwm_mode, store_pwm_mode, 3);
1070static SENSOR_DEVICE_ATTR(pwm5_mode, S_IWUSR | S_IRUGO,
1071 show_pwm_mode, store_pwm_mode, 4);
1072static SENSOR_DEVICE_ATTR(pwm6_mode, S_IWUSR | S_IRUGO,
1073 show_pwm_mode, store_pwm_mode, 5);
1074static SENSOR_DEVICE_ATTR(pwm7_mode, S_IWUSR | S_IRUGO,
1075 show_pwm_mode, store_pwm_mode, 6);
1076static SENSOR_DEVICE_ATTR(tolerance1, S_IWUSR | S_IRUGO,
1077 show_tolerance, store_tolerance, 1);
1078static SENSOR_DEVICE_ATTR(tolerance2, S_IWUSR | S_IRUGO,
1079 show_tolerance, store_tolerance, 2);
1080static SENSOR_DEVICE_ATTR(tolerance3, S_IWUSR | S_IRUGO,
1081 show_tolerance, store_tolerance, 3);
1082static SENSOR_DEVICE_ATTR(thermal_cruise1, S_IWUSR | S_IRUGO,
1083 show_thermal_cruise, store_thermal_cruise, 1);
1084static SENSOR_DEVICE_ATTR(thermal_cruise2, S_IWUSR | S_IRUGO,
1085 show_thermal_cruise, store_thermal_cruise, 2);
1086static SENSOR_DEVICE_ATTR(thermal_cruise3, S_IWUSR | S_IRUGO,
1087 show_thermal_cruise, store_thermal_cruise, 3);
1088static SENSOR_DEVICE_ATTR_2(sf2_point1_fan1, S_IRUGO | S_IWUSR,
1089 show_sf2_point, store_sf2_point, 1, 1);
1090static SENSOR_DEVICE_ATTR_2(sf2_point2_fan1, S_IRUGO | S_IWUSR,
1091 show_sf2_point, store_sf2_point, 2, 1);
1092static SENSOR_DEVICE_ATTR_2(sf2_point3_fan1, S_IRUGO | S_IWUSR,
1093 show_sf2_point, store_sf2_point, 3, 1);
1094static SENSOR_DEVICE_ATTR_2(sf2_point4_fan1, S_IRUGO | S_IWUSR,
1095 show_sf2_point, store_sf2_point, 4, 1);
1096static SENSOR_DEVICE_ATTR_2(sf2_point1_fan2, S_IRUGO | S_IWUSR,
1097 show_sf2_point, store_sf2_point, 1, 2);
1098static SENSOR_DEVICE_ATTR_2(sf2_point2_fan2, S_IRUGO | S_IWUSR,
1099 show_sf2_point, store_sf2_point, 2, 2);
1100static SENSOR_DEVICE_ATTR_2(sf2_point3_fan2, S_IRUGO | S_IWUSR,
1101 show_sf2_point, store_sf2_point, 3, 2);
1102static SENSOR_DEVICE_ATTR_2(sf2_point4_fan2, S_IRUGO | S_IWUSR,
1103 show_sf2_point, store_sf2_point, 4, 2);
1104static SENSOR_DEVICE_ATTR_2(sf2_point1_fan3, S_IRUGO | S_IWUSR,
1105 show_sf2_point, store_sf2_point, 1, 3);
1106static SENSOR_DEVICE_ATTR_2(sf2_point2_fan3, S_IRUGO | S_IWUSR,
1107 show_sf2_point, store_sf2_point, 2, 3);
1108static SENSOR_DEVICE_ATTR_2(sf2_point3_fan3, S_IRUGO | S_IWUSR,
1109 show_sf2_point, store_sf2_point, 3, 3);
1110static SENSOR_DEVICE_ATTR_2(sf2_point4_fan3, S_IRUGO | S_IWUSR,
1111 show_sf2_point, store_sf2_point, 4, 3);
1112static SENSOR_DEVICE_ATTR_2(sf2_level1_fan1, S_IRUGO | S_IWUSR,
1113 show_sf2_level, store_sf2_level, 1, 1);
1114static SENSOR_DEVICE_ATTR_2(sf2_level2_fan1, S_IRUGO | S_IWUSR,
1115 show_sf2_level, store_sf2_level, 2, 1);
1116static SENSOR_DEVICE_ATTR_2(sf2_level3_fan1, S_IRUGO | S_IWUSR,
1117 show_sf2_level, store_sf2_level, 3, 1);
1118static SENSOR_DEVICE_ATTR_2(sf2_level1_fan2, S_IRUGO | S_IWUSR,
1119 show_sf2_level, store_sf2_level, 1, 2);
1120static SENSOR_DEVICE_ATTR_2(sf2_level2_fan2, S_IRUGO | S_IWUSR,
1121 show_sf2_level, store_sf2_level, 2, 2);
1122static SENSOR_DEVICE_ATTR_2(sf2_level3_fan2, S_IRUGO | S_IWUSR,
1123 show_sf2_level, store_sf2_level, 3, 2);
1124static SENSOR_DEVICE_ATTR_2(sf2_level1_fan3, S_IRUGO | S_IWUSR,
1125 show_sf2_level, store_sf2_level, 1, 3);
1126static SENSOR_DEVICE_ATTR_2(sf2_level2_fan3, S_IRUGO | S_IWUSR,
1127 show_sf2_level, store_sf2_level, 2, 3);
1128static SENSOR_DEVICE_ATTR_2(sf2_level3_fan3, S_IRUGO | S_IWUSR,
1129 show_sf2_level, store_sf2_level, 3, 3);
1130static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 1);
1131static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 2);
1132static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 3);
1133static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 4);
1134static SENSOR_DEVICE_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 5);
1135static SENSOR_DEVICE_ATTR(fan6_input, S_IRUGO, show_fan, NULL, 6);
1136static SENSOR_DEVICE_ATTR(fan7_input, S_IRUGO, show_fan, NULL, 7);
1137static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO,
1138 show_fan_min, store_fan_min, 1);
1139static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO,
1140 show_fan_min, store_fan_min, 2);
1141static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO,
1142 show_fan_min, store_fan_min, 3);
1143static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO,
1144 show_fan_min, store_fan_min, 4);
1145static SENSOR_DEVICE_ATTR(fan5_min, S_IWUSR | S_IRUGO,
1146 show_fan_min, store_fan_min, 5);
1147static SENSOR_DEVICE_ATTR(fan6_min, S_IWUSR | S_IRUGO,
1148 show_fan_min, store_fan_min, 6);
1149static SENSOR_DEVICE_ATTR(fan7_min, S_IWUSR | S_IRUGO,
1150 show_fan_min, store_fan_min, 7);
1151static SENSOR_DEVICE_ATTR(fan1_div, S_IWUSR | S_IRUGO,
1152 show_fan_div, store_fan_div, 1);
1153static SENSOR_DEVICE_ATTR(fan2_div, S_IWUSR | S_IRUGO,
1154 show_fan_div, store_fan_div, 2);
1155static SENSOR_DEVICE_ATTR(fan3_div, S_IWUSR | S_IRUGO,
1156 show_fan_div, store_fan_div, 3);
1157static SENSOR_DEVICE_ATTR(fan4_div, S_IWUSR | S_IRUGO,
1158 show_fan_div, store_fan_div, 4);
1159static SENSOR_DEVICE_ATTR(fan5_div, S_IWUSR | S_IRUGO,
1160 show_fan_div, store_fan_div, 5);
1161static SENSOR_DEVICE_ATTR(fan6_div, S_IWUSR | S_IRUGO,
1162 show_fan_div, store_fan_div, 6);
1163static SENSOR_DEVICE_ATTR(fan7_div, S_IWUSR | S_IRUGO,
1164 show_fan_div, store_fan_div, 7);
1165
1166static struct attribute *w83792d_attributes_fan[4][7] = {
1167 {
1168 &sensor_dev_attr_fan4_input.dev_attr.attr,
1169 &sensor_dev_attr_fan4_min.dev_attr.attr,
1170 &sensor_dev_attr_fan4_div.dev_attr.attr,
1171 &sensor_dev_attr_fan4_alarm.dev_attr.attr,
1172 &sensor_dev_attr_pwm4.dev_attr.attr,
1173 &sensor_dev_attr_pwm4_mode.dev_attr.attr,
1174 NULL
1175 }, {
1176 &sensor_dev_attr_fan5_input.dev_attr.attr,
1177 &sensor_dev_attr_fan5_min.dev_attr.attr,
1178 &sensor_dev_attr_fan5_div.dev_attr.attr,
1179 &sensor_dev_attr_fan5_alarm.dev_attr.attr,
1180 &sensor_dev_attr_pwm5.dev_attr.attr,
1181 &sensor_dev_attr_pwm5_mode.dev_attr.attr,
1182 NULL
1183 }, {
1184 &sensor_dev_attr_fan6_input.dev_attr.attr,
1185 &sensor_dev_attr_fan6_min.dev_attr.attr,
1186 &sensor_dev_attr_fan6_div.dev_attr.attr,
1187 &sensor_dev_attr_fan6_alarm.dev_attr.attr,
1188 &sensor_dev_attr_pwm6.dev_attr.attr,
1189 &sensor_dev_attr_pwm6_mode.dev_attr.attr,
1190 NULL
1191 }, {
1192 &sensor_dev_attr_fan7_input.dev_attr.attr,
1193 &sensor_dev_attr_fan7_min.dev_attr.attr,
1194 &sensor_dev_attr_fan7_div.dev_attr.attr,
1195 &sensor_dev_attr_fan7_alarm.dev_attr.attr,
1196 &sensor_dev_attr_pwm7.dev_attr.attr,
1197 &sensor_dev_attr_pwm7_mode.dev_attr.attr,
1198 NULL
1199 }
1200};
1201
1202static const struct attribute_group w83792d_group_fan[4] = {
1203 { .attrs = w83792d_attributes_fan[0] },
1204 { .attrs = w83792d_attributes_fan[1] },
1205 { .attrs = w83792d_attributes_fan[2] },
1206 { .attrs = w83792d_attributes_fan[3] },
1207};
1208
1209static struct attribute *w83792d_attributes[] = {
1210 &sensor_dev_attr_in0_input.dev_attr.attr,
1211 &sensor_dev_attr_in0_max.dev_attr.attr,
1212 &sensor_dev_attr_in0_min.dev_attr.attr,
1213 &sensor_dev_attr_in1_input.dev_attr.attr,
1214 &sensor_dev_attr_in1_max.dev_attr.attr,
1215 &sensor_dev_attr_in1_min.dev_attr.attr,
1216 &sensor_dev_attr_in2_input.dev_attr.attr,
1217 &sensor_dev_attr_in2_max.dev_attr.attr,
1218 &sensor_dev_attr_in2_min.dev_attr.attr,
1219 &sensor_dev_attr_in3_input.dev_attr.attr,
1220 &sensor_dev_attr_in3_max.dev_attr.attr,
1221 &sensor_dev_attr_in3_min.dev_attr.attr,
1222 &sensor_dev_attr_in4_input.dev_attr.attr,
1223 &sensor_dev_attr_in4_max.dev_attr.attr,
1224 &sensor_dev_attr_in4_min.dev_attr.attr,
1225 &sensor_dev_attr_in5_input.dev_attr.attr,
1226 &sensor_dev_attr_in5_max.dev_attr.attr,
1227 &sensor_dev_attr_in5_min.dev_attr.attr,
1228 &sensor_dev_attr_in6_input.dev_attr.attr,
1229 &sensor_dev_attr_in6_max.dev_attr.attr,
1230 &sensor_dev_attr_in6_min.dev_attr.attr,
1231 &sensor_dev_attr_in7_input.dev_attr.attr,
1232 &sensor_dev_attr_in7_max.dev_attr.attr,
1233 &sensor_dev_attr_in7_min.dev_attr.attr,
1234 &sensor_dev_attr_in8_input.dev_attr.attr,
1235 &sensor_dev_attr_in8_max.dev_attr.attr,
1236 &sensor_dev_attr_in8_min.dev_attr.attr,
1237 &sensor_dev_attr_in0_alarm.dev_attr.attr,
1238 &sensor_dev_attr_in1_alarm.dev_attr.attr,
1239 &sensor_dev_attr_in2_alarm.dev_attr.attr,
1240 &sensor_dev_attr_in3_alarm.dev_attr.attr,
1241 &sensor_dev_attr_in4_alarm.dev_attr.attr,
1242 &sensor_dev_attr_in5_alarm.dev_attr.attr,
1243 &sensor_dev_attr_in6_alarm.dev_attr.attr,
1244 &sensor_dev_attr_in7_alarm.dev_attr.attr,
1245 &sensor_dev_attr_in8_alarm.dev_attr.attr,
1246 &sensor_dev_attr_temp1_input.dev_attr.attr,
1247 &sensor_dev_attr_temp1_max.dev_attr.attr,
1248 &sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
1249 &sensor_dev_attr_temp2_input.dev_attr.attr,
1250 &sensor_dev_attr_temp2_max.dev_attr.attr,
1251 &sensor_dev_attr_temp2_max_hyst.dev_attr.attr,
1252 &sensor_dev_attr_temp3_input.dev_attr.attr,
1253 &sensor_dev_attr_temp3_max.dev_attr.attr,
1254 &sensor_dev_attr_temp3_max_hyst.dev_attr.attr,
1255 &sensor_dev_attr_temp1_alarm.dev_attr.attr,
1256 &sensor_dev_attr_temp2_alarm.dev_attr.attr,
1257 &sensor_dev_attr_temp3_alarm.dev_attr.attr,
1258 &sensor_dev_attr_pwm1.dev_attr.attr,
1259 &sensor_dev_attr_pwm1_mode.dev_attr.attr,
1260 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
1261 &sensor_dev_attr_pwm2.dev_attr.attr,
1262 &sensor_dev_attr_pwm2_mode.dev_attr.attr,
1263 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
1264 &sensor_dev_attr_pwm3.dev_attr.attr,
1265 &sensor_dev_attr_pwm3_mode.dev_attr.attr,
1266 &sensor_dev_attr_pwm3_enable.dev_attr.attr,
1267 &dev_attr_alarms.attr,
1268 &dev_attr_intrusion0_alarm.attr,
1269 &sensor_dev_attr_tolerance1.dev_attr.attr,
1270 &sensor_dev_attr_thermal_cruise1.dev_attr.attr,
1271 &sensor_dev_attr_tolerance2.dev_attr.attr,
1272 &sensor_dev_attr_thermal_cruise2.dev_attr.attr,
1273 &sensor_dev_attr_tolerance3.dev_attr.attr,
1274 &sensor_dev_attr_thermal_cruise3.dev_attr.attr,
1275 &sensor_dev_attr_sf2_point1_fan1.dev_attr.attr,
1276 &sensor_dev_attr_sf2_point2_fan1.dev_attr.attr,
1277 &sensor_dev_attr_sf2_point3_fan1.dev_attr.attr,
1278 &sensor_dev_attr_sf2_point4_fan1.dev_attr.attr,
1279 &sensor_dev_attr_sf2_point1_fan2.dev_attr.attr,
1280 &sensor_dev_attr_sf2_point2_fan2.dev_attr.attr,
1281 &sensor_dev_attr_sf2_point3_fan2.dev_attr.attr,
1282 &sensor_dev_attr_sf2_point4_fan2.dev_attr.attr,
1283 &sensor_dev_attr_sf2_point1_fan3.dev_attr.attr,
1284 &sensor_dev_attr_sf2_point2_fan3.dev_attr.attr,
1285 &sensor_dev_attr_sf2_point3_fan3.dev_attr.attr,
1286 &sensor_dev_attr_sf2_point4_fan3.dev_attr.attr,
1287 &sensor_dev_attr_sf2_level1_fan1.dev_attr.attr,
1288 &sensor_dev_attr_sf2_level2_fan1.dev_attr.attr,
1289 &sensor_dev_attr_sf2_level3_fan1.dev_attr.attr,
1290 &sensor_dev_attr_sf2_level1_fan2.dev_attr.attr,
1291 &sensor_dev_attr_sf2_level2_fan2.dev_attr.attr,
1292 &sensor_dev_attr_sf2_level3_fan2.dev_attr.attr,
1293 &sensor_dev_attr_sf2_level1_fan3.dev_attr.attr,
1294 &sensor_dev_attr_sf2_level2_fan3.dev_attr.attr,
1295 &sensor_dev_attr_sf2_level3_fan3.dev_attr.attr,
1296 &sensor_dev_attr_fan1_input.dev_attr.attr,
1297 &sensor_dev_attr_fan1_min.dev_attr.attr,
1298 &sensor_dev_attr_fan1_div.dev_attr.attr,
1299 &sensor_dev_attr_fan1_alarm.dev_attr.attr,
1300 &sensor_dev_attr_fan2_input.dev_attr.attr,
1301 &sensor_dev_attr_fan2_min.dev_attr.attr,
1302 &sensor_dev_attr_fan2_div.dev_attr.attr,
1303 &sensor_dev_attr_fan2_alarm.dev_attr.attr,
1304 &sensor_dev_attr_fan3_input.dev_attr.attr,
1305 &sensor_dev_attr_fan3_min.dev_attr.attr,
1306 &sensor_dev_attr_fan3_div.dev_attr.attr,
1307 &sensor_dev_attr_fan3_alarm.dev_attr.attr,
1308 NULL
1309};
1310
1311static const struct attribute_group w83792d_group = {
1312 .attrs = w83792d_attributes,
1313};
1314
1315/* Return 0 if detection is successful, -ENODEV otherwise */
1316static int
1317w83792d_detect(struct i2c_client *client, struct i2c_board_info *info)
1318{
1319 struct i2c_adapter *adapter = client->adapter;
1320 int val1, val2;
1321 unsigned short address = client->addr;
1322
1323 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
1324 return -ENODEV;
1325
1326 if (w83792d_read_value(client, W83792D_REG_CONFIG) & 0x80)
1327 return -ENODEV;
1328
1329 val1 = w83792d_read_value(client, W83792D_REG_BANK);
1330 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN);
1331 /* Check for Winbond ID if in bank 0 */
1332 if (!(val1 & 0x07)) { /* is Bank0 */
1333 if ((!(val1 & 0x80) && val2 != 0xa3) ||
1334 ((val1 & 0x80) && val2 != 0x5c))
1335 return -ENODEV;
1336 }
1337 /*
1338 * If Winbond chip, address of chip and W83792D_REG_I2C_ADDR
1339 * should match
1340 */
1341 if (w83792d_read_value(client, W83792D_REG_I2C_ADDR) != address)
1342 return -ENODEV;
1343
1344 /* Put it now into bank 0 and Vendor ID High Byte */
1345 w83792d_write_value(client,
1346 W83792D_REG_BANK,
1347 (w83792d_read_value(client,
1348 W83792D_REG_BANK) & 0x78) | 0x80);
1349
1350 /* Determine the chip type. */
1351 val1 = w83792d_read_value(client, W83792D_REG_WCHIPID);
1352 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN);
1353 if (val1 != 0x7a || val2 != 0x5c)
1354 return -ENODEV;
1355
1356 strlcpy(info->type, "w83792d", I2C_NAME_SIZE);
1357
1358 return 0;
1359}
1360
1361static int
1362w83792d_probe(struct i2c_client *client, const struct i2c_device_id *id)
1363{
1364 struct w83792d_data *data;
1365 struct device *dev = &client->dev;
1366 int i, val1, err;
1367
1368 data = devm_kzalloc(dev, sizeof(struct w83792d_data), GFP_KERNEL);
1369 if (!data)
1370 return -ENOMEM;
1371
1372 i2c_set_clientdata(client, data);
1373 mutex_init(&data->update_lock);
1374
1375 err = w83792d_detect_subclients(client);
1376 if (err)
1377 return err;
1378
1379 /* Initialize the chip */
1380 w83792d_init_client(client);
1381
1382 /* A few vars need to be filled upon startup */
1383 for (i = 0; i < 7; i++) {
1384 data->fan_min[i] = w83792d_read_value(client,
1385 W83792D_REG_FAN_MIN[i]);
1386 }
1387
1388 /* Register sysfs hooks */
1389 err = sysfs_create_group(&dev->kobj, &w83792d_group);
1390 if (err)
1391 return err;
1392
1393 /*
1394 * Read GPIO enable register to check if pins for fan 4,5 are used as
1395 * GPIO
1396 */
1397 val1 = w83792d_read_value(client, W83792D_REG_GPIO_EN);
1398
1399 if (!(val1 & 0x40)) {
1400 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[0]);
1401 if (err)
1402 goto exit_remove_files;
1403 }
1404
1405 if (!(val1 & 0x20)) {
1406 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[1]);
1407 if (err)
1408 goto exit_remove_files;
1409 }
1410
1411 val1 = w83792d_read_value(client, W83792D_REG_PIN);
1412 if (val1 & 0x40) {
1413 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[2]);
1414 if (err)
1415 goto exit_remove_files;
1416 }
1417
1418 if (val1 & 0x04) {
1419 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[3]);
1420 if (err)
1421 goto exit_remove_files;
1422 }
1423
1424 data->hwmon_dev = hwmon_device_register(dev);
1425 if (IS_ERR(data->hwmon_dev)) {
1426 err = PTR_ERR(data->hwmon_dev);
1427 goto exit_remove_files;
1428 }
1429
1430 return 0;
1431
1432exit_remove_files:
1433 sysfs_remove_group(&dev->kobj, &w83792d_group);
1434 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++)
1435 sysfs_remove_group(&dev->kobj, &w83792d_group_fan[i]);
1436 return err;
1437}
1438
1439static int
1440w83792d_remove(struct i2c_client *client)
1441{
1442 struct w83792d_data *data = i2c_get_clientdata(client);
1443 int i;
1444
1445 hwmon_device_unregister(data->hwmon_dev);
1446 sysfs_remove_group(&client->dev.kobj, &w83792d_group);
1447 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++)
1448 sysfs_remove_group(&client->dev.kobj,
1449 &w83792d_group_fan[i]);
1450
1451 return 0;
1452}
1453
1454static void
1455w83792d_init_client(struct i2c_client *client)
1456{
1457 u8 temp2_cfg, temp3_cfg, vid_in_b;
1458
1459 if (init)
1460 w83792d_write_value(client, W83792D_REG_CONFIG, 0x80);
1461
1462 /*
1463 * Clear the bit6 of W83792D_REG_VID_IN_B(set it into 0):
1464 * W83792D_REG_VID_IN_B bit6 = 0: the high/low limit of
1465 * vin0/vin1 can be modified by user;
1466 * W83792D_REG_VID_IN_B bit6 = 1: the high/low limit of
1467 * vin0/vin1 auto-updated, can NOT be modified by user.
1468 */
1469 vid_in_b = w83792d_read_value(client, W83792D_REG_VID_IN_B);
1470 w83792d_write_value(client, W83792D_REG_VID_IN_B,
1471 vid_in_b & 0xbf);
1472
1473 temp2_cfg = w83792d_read_value(client, W83792D_REG_TEMP2_CONFIG);
1474 temp3_cfg = w83792d_read_value(client, W83792D_REG_TEMP3_CONFIG);
1475 w83792d_write_value(client, W83792D_REG_TEMP2_CONFIG,
1476 temp2_cfg & 0xe6);
1477 w83792d_write_value(client, W83792D_REG_TEMP3_CONFIG,
1478 temp3_cfg & 0xe6);
1479
1480 /* Start monitoring */
1481 w83792d_write_value(client, W83792D_REG_CONFIG,
1482 (w83792d_read_value(client,
1483 W83792D_REG_CONFIG) & 0xf7)
1484 | 0x01);
1485}
1486
1487static struct w83792d_data *w83792d_update_device(struct device *dev)
1488{
1489 struct i2c_client *client = to_i2c_client(dev);
1490 struct w83792d_data *data = i2c_get_clientdata(client);
1491 int i, j;
1492 u8 reg_array_tmp[4], reg_tmp;
1493
1494 mutex_lock(&data->update_lock);
1495
1496 if (time_after
1497 (jiffies - data->last_updated, (unsigned long) (HZ * 3))
1498 || time_before(jiffies, data->last_updated) || !data->valid) {
1499 dev_dbg(dev, "Starting device update\n");
1500
1501 /* Update the voltages measured value and limits */
1502 for (i = 0; i < 9; i++) {
1503 data->in[i] = w83792d_read_value(client,
1504 W83792D_REG_IN[i]);
1505 data->in_max[i] = w83792d_read_value(client,
1506 W83792D_REG_IN_MAX[i]);
1507 data->in_min[i] = w83792d_read_value(client,
1508 W83792D_REG_IN_MIN[i]);
1509 }
1510 data->low_bits = w83792d_read_value(client,
1511 W83792D_REG_LOW_BITS1) +
1512 (w83792d_read_value(client,
1513 W83792D_REG_LOW_BITS2) << 8);
1514 for (i = 0; i < 7; i++) {
1515 /* Update the Fan measured value and limits */
1516 data->fan[i] = w83792d_read_value(client,
1517 W83792D_REG_FAN[i]);
1518 data->fan_min[i] = w83792d_read_value(client,
1519 W83792D_REG_FAN_MIN[i]);
1520 /* Update the PWM/DC Value and PWM/DC flag */
1521 data->pwm[i] = w83792d_read_value(client,
1522 W83792D_REG_PWM[i]);
1523 }
1524
1525 reg_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG);
1526 data->pwmenable[0] = reg_tmp & 0x03;
1527 data->pwmenable[1] = (reg_tmp>>2) & 0x03;
1528 data->pwmenable[2] = (reg_tmp>>4) & 0x03;
1529
1530 for (i = 0; i < 3; i++) {
1531 data->temp1[i] = w83792d_read_value(client,
1532 W83792D_REG_TEMP1[i]);
1533 }
1534 for (i = 0; i < 2; i++) {
1535 for (j = 0; j < 6; j++) {
1536 data->temp_add[i][j] = w83792d_read_value(
1537 client, W83792D_REG_TEMP_ADD[i][j]);
1538 }
1539 }
1540
1541 /* Update the Fan Divisor */
1542 for (i = 0; i < 4; i++) {
1543 reg_array_tmp[i] = w83792d_read_value(client,
1544 W83792D_REG_FAN_DIV[i]);
1545 }
1546 data->fan_div[0] = reg_array_tmp[0] & 0x07;
1547 data->fan_div[1] = (reg_array_tmp[0] >> 4) & 0x07;
1548 data->fan_div[2] = reg_array_tmp[1] & 0x07;
1549 data->fan_div[3] = (reg_array_tmp[1] >> 4) & 0x07;
1550 data->fan_div[4] = reg_array_tmp[2] & 0x07;
1551 data->fan_div[5] = (reg_array_tmp[2] >> 4) & 0x07;
1552 data->fan_div[6] = reg_array_tmp[3] & 0x07;
1553
1554 /* Update the realtime status */
1555 data->alarms = w83792d_read_value(client, W83792D_REG_ALARM1) +
1556 (w83792d_read_value(client, W83792D_REG_ALARM2) << 8) +
1557 (w83792d_read_value(client, W83792D_REG_ALARM3) << 16);
1558
1559 /* Update CaseOpen status and it's CLR_CHS. */
1560 data->chassis = (w83792d_read_value(client,
1561 W83792D_REG_CHASSIS) >> 5) & 0x01;
1562
1563 /* Update Thermal Cruise/Smart Fan I target value */
1564 for (i = 0; i < 3; i++) {
1565 data->thermal_cruise[i] =
1566 w83792d_read_value(client,
1567 W83792D_REG_THERMAL[i]) & 0x7f;
1568 }
1569
1570 /* Update Smart Fan I/II tolerance */
1571 reg_tmp = w83792d_read_value(client, W83792D_REG_TOLERANCE[0]);
1572 data->tolerance[0] = reg_tmp & 0x0f;
1573 data->tolerance[1] = (reg_tmp >> 4) & 0x0f;
1574 data->tolerance[2] = w83792d_read_value(client,
1575 W83792D_REG_TOLERANCE[2]) & 0x0f;
1576
1577 /* Update Smart Fan II temperature points */
1578 for (i = 0; i < 3; i++) {
1579 for (j = 0; j < 4; j++) {
1580 data->sf2_points[i][j]
1581 = w83792d_read_value(client,
1582 W83792D_REG_POINTS[i][j]) & 0x7f;
1583 }
1584 }
1585
1586 /* Update Smart Fan II duty cycle levels */
1587 for (i = 0; i < 3; i++) {
1588 reg_tmp = w83792d_read_value(client,
1589 W83792D_REG_LEVELS[i][0]);
1590 data->sf2_levels[i][0] = reg_tmp & 0x0f;
1591 data->sf2_levels[i][1] = (reg_tmp >> 4) & 0x0f;
1592 reg_tmp = w83792d_read_value(client,
1593 W83792D_REG_LEVELS[i][2]);
1594 data->sf2_levels[i][2] = (reg_tmp >> 4) & 0x0f;
1595 data->sf2_levels[i][3] = reg_tmp & 0x0f;
1596 }
1597
1598 data->last_updated = jiffies;
1599 data->valid = 1;
1600 }
1601
1602 mutex_unlock(&data->update_lock);
1603
1604#ifdef DEBUG
1605 w83792d_print_debug(data, dev);
1606#endif
1607
1608 return data;
1609}
1610
1611#ifdef DEBUG
1612static void w83792d_print_debug(struct w83792d_data *data, struct device *dev)
1613{
1614 int i = 0, j = 0;
1615 dev_dbg(dev, "==========The following is the debug message...========\n");
1616 dev_dbg(dev, "9 set of Voltages: =====>\n");
1617 for (i = 0; i < 9; i++) {
1618 dev_dbg(dev, "vin[%d] is: 0x%x\n", i, data->in[i]);
1619 dev_dbg(dev, "vin[%d] max is: 0x%x\n", i, data->in_max[i]);
1620 dev_dbg(dev, "vin[%d] min is: 0x%x\n", i, data->in_min[i]);
1621 }
1622 dev_dbg(dev, "Low Bit1 is: 0x%x\n", data->low_bits & 0xff);
1623 dev_dbg(dev, "Low Bit2 is: 0x%x\n", data->low_bits >> 8);
1624 dev_dbg(dev, "7 set of Fan Counts and Duty Cycles: =====>\n");
1625 for (i = 0; i < 7; i++) {
1626 dev_dbg(dev, "fan[%d] is: 0x%x\n", i, data->fan[i]);
1627 dev_dbg(dev, "fan[%d] min is: 0x%x\n", i, data->fan_min[i]);
1628 dev_dbg(dev, "pwm[%d] is: 0x%x\n", i, data->pwm[i]);
1629 }
1630 dev_dbg(dev, "3 set of Temperatures: =====>\n");
1631 for (i = 0; i < 3; i++)
1632 dev_dbg(dev, "temp1[%d] is: 0x%x\n", i, data->temp1[i]);
1633
1634 for (i = 0; i < 2; i++) {
1635 for (j = 0; j < 6; j++) {
1636 dev_dbg(dev, "temp_add[%d][%d] is: 0x%x\n", i, j,
1637 data->temp_add[i][j]);
1638 }
1639 }
1640
1641 for (i = 0; i < 7; i++)
1642 dev_dbg(dev, "fan_div[%d] is: 0x%x\n", i, data->fan_div[i]);
1643
1644 dev_dbg(dev, "==========End of the debug message...================\n");
1645 dev_dbg(dev, "\n");
1646}
1647#endif
1648
1649module_i2c_driver(w83792d_driver);
1650
1651MODULE_AUTHOR("Shane Huang (Winbond)");
1652MODULE_DESCRIPTION("W83792AD/D driver for linux-2.6");
1653MODULE_LICENSE("GPL");
1/*
2 * w83792d.c - Part of lm_sensors, Linux kernel modules for hardware
3 * monitoring
4 * Copyright (C) 2004, 2005 Winbond Electronics Corp.
5 * Chunhao Huang <DZShen@Winbond.com.tw>,
6 * Rudolf Marek <r.marek@assembler.cz>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 *
22 * Note:
23 * 1. This driver is only for 2.6 kernel, 2.4 kernel need a different driver.
24 * 2. This driver is only for Winbond W83792D C version device, there
25 * are also some motherboards with B version W83792D device. The
26 * calculation method to in6-in7(measured value, limits) is a little
27 * different between C and B version. C or B version can be identified
28 * by CR[0x49h].
29 */
30
31/*
32 * Supports following chips:
33 *
34 * Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA
35 * w83792d 9 7 7 3 0x7a 0x5ca3 yes no
36 */
37
38#include <linux/module.h>
39#include <linux/init.h>
40#include <linux/slab.h>
41#include <linux/i2c.h>
42#include <linux/hwmon.h>
43#include <linux/hwmon-sysfs.h>
44#include <linux/err.h>
45#include <linux/mutex.h>
46#include <linux/sysfs.h>
47
48/* Addresses to scan */
49static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f,
50 I2C_CLIENT_END };
51
52/* Insmod parameters */
53
54static unsigned short force_subclients[4];
55module_param_array(force_subclients, short, NULL, 0);
56MODULE_PARM_DESC(force_subclients, "List of subclient addresses: "
57 "{bus, clientaddr, subclientaddr1, subclientaddr2}");
58
59static bool init;
60module_param(init, bool, 0);
61MODULE_PARM_DESC(init, "Set to one to force chip initialization");
62
63/* The W83792D registers */
64static const u8 W83792D_REG_IN[9] = {
65 0x20, /* Vcore A in DataSheet */
66 0x21, /* Vcore B in DataSheet */
67 0x22, /* VIN0 in DataSheet */
68 0x23, /* VIN1 in DataSheet */
69 0x24, /* VIN2 in DataSheet */
70 0x25, /* VIN3 in DataSheet */
71 0x26, /* 5VCC in DataSheet */
72 0xB0, /* 5VSB in DataSheet */
73 0xB1 /* VBAT in DataSheet */
74};
75#define W83792D_REG_LOW_BITS1 0x3E /* Low Bits I in DataSheet */
76#define W83792D_REG_LOW_BITS2 0x3F /* Low Bits II in DataSheet */
77static const u8 W83792D_REG_IN_MAX[9] = {
78 0x2B, /* Vcore A High Limit in DataSheet */
79 0x2D, /* Vcore B High Limit in DataSheet */
80 0x2F, /* VIN0 High Limit in DataSheet */
81 0x31, /* VIN1 High Limit in DataSheet */
82 0x33, /* VIN2 High Limit in DataSheet */
83 0x35, /* VIN3 High Limit in DataSheet */
84 0x37, /* 5VCC High Limit in DataSheet */
85 0xB4, /* 5VSB High Limit in DataSheet */
86 0xB6 /* VBAT High Limit in DataSheet */
87};
88static const u8 W83792D_REG_IN_MIN[9] = {
89 0x2C, /* Vcore A Low Limit in DataSheet */
90 0x2E, /* Vcore B Low Limit in DataSheet */
91 0x30, /* VIN0 Low Limit in DataSheet */
92 0x32, /* VIN1 Low Limit in DataSheet */
93 0x34, /* VIN2 Low Limit in DataSheet */
94 0x36, /* VIN3 Low Limit in DataSheet */
95 0x38, /* 5VCC Low Limit in DataSheet */
96 0xB5, /* 5VSB Low Limit in DataSheet */
97 0xB7 /* VBAT Low Limit in DataSheet */
98};
99static const u8 W83792D_REG_FAN[7] = {
100 0x28, /* FAN 1 Count in DataSheet */
101 0x29, /* FAN 2 Count in DataSheet */
102 0x2A, /* FAN 3 Count in DataSheet */
103 0xB8, /* FAN 4 Count in DataSheet */
104 0xB9, /* FAN 5 Count in DataSheet */
105 0xBA, /* FAN 6 Count in DataSheet */
106 0xBE /* FAN 7 Count in DataSheet */
107};
108static const u8 W83792D_REG_FAN_MIN[7] = {
109 0x3B, /* FAN 1 Count Low Limit in DataSheet */
110 0x3C, /* FAN 2 Count Low Limit in DataSheet */
111 0x3D, /* FAN 3 Count Low Limit in DataSheet */
112 0xBB, /* FAN 4 Count Low Limit in DataSheet */
113 0xBC, /* FAN 5 Count Low Limit in DataSheet */
114 0xBD, /* FAN 6 Count Low Limit in DataSheet */
115 0xBF /* FAN 7 Count Low Limit in DataSheet */
116};
117#define W83792D_REG_FAN_CFG 0x84 /* FAN Configuration in DataSheet */
118static const u8 W83792D_REG_FAN_DIV[4] = {
119 0x47, /* contains FAN2 and FAN1 Divisor */
120 0x5B, /* contains FAN4 and FAN3 Divisor */
121 0x5C, /* contains FAN6 and FAN5 Divisor */
122 0x9E /* contains FAN7 Divisor. */
123};
124static const u8 W83792D_REG_PWM[7] = {
125 0x81, /* FAN 1 Duty Cycle, be used to control */
126 0x83, /* FAN 2 Duty Cycle, be used to control */
127 0x94, /* FAN 3 Duty Cycle, be used to control */
128 0xA3, /* FAN 4 Duty Cycle, be used to control */
129 0xA4, /* FAN 5 Duty Cycle, be used to control */
130 0xA5, /* FAN 6 Duty Cycle, be used to control */
131 0xA6 /* FAN 7 Duty Cycle, be used to control */
132};
133#define W83792D_REG_BANK 0x4E
134#define W83792D_REG_TEMP2_CONFIG 0xC2
135#define W83792D_REG_TEMP3_CONFIG 0xCA
136
137static const u8 W83792D_REG_TEMP1[3] = {
138 0x27, /* TEMP 1 in DataSheet */
139 0x39, /* TEMP 1 Over in DataSheet */
140 0x3A, /* TEMP 1 Hyst in DataSheet */
141};
142
143static const u8 W83792D_REG_TEMP_ADD[2][6] = {
144 { 0xC0, /* TEMP 2 in DataSheet */
145 0xC1, /* TEMP 2(0.5 deg) in DataSheet */
146 0xC5, /* TEMP 2 Over High part in DataSheet */
147 0xC6, /* TEMP 2 Over Low part in DataSheet */
148 0xC3, /* TEMP 2 Thyst High part in DataSheet */
149 0xC4 }, /* TEMP 2 Thyst Low part in DataSheet */
150 { 0xC8, /* TEMP 3 in DataSheet */
151 0xC9, /* TEMP 3(0.5 deg) in DataSheet */
152 0xCD, /* TEMP 3 Over High part in DataSheet */
153 0xCE, /* TEMP 3 Over Low part in DataSheet */
154 0xCB, /* TEMP 3 Thyst High part in DataSheet */
155 0xCC } /* TEMP 3 Thyst Low part in DataSheet */
156};
157
158static const u8 W83792D_REG_THERMAL[3] = {
159 0x85, /* SmartFanI: Fan1 target value */
160 0x86, /* SmartFanI: Fan2 target value */
161 0x96 /* SmartFanI: Fan3 target value */
162};
163
164static const u8 W83792D_REG_TOLERANCE[3] = {
165 0x87, /* (bit3-0)SmartFan Fan1 tolerance */
166 0x87, /* (bit7-4)SmartFan Fan2 tolerance */
167 0x97 /* (bit3-0)SmartFan Fan3 tolerance */
168};
169
170static const u8 W83792D_REG_POINTS[3][4] = {
171 { 0x85, /* SmartFanII: Fan1 temp point 1 */
172 0xE3, /* SmartFanII: Fan1 temp point 2 */
173 0xE4, /* SmartFanII: Fan1 temp point 3 */
174 0xE5 }, /* SmartFanII: Fan1 temp point 4 */
175 { 0x86, /* SmartFanII: Fan2 temp point 1 */
176 0xE6, /* SmartFanII: Fan2 temp point 2 */
177 0xE7, /* SmartFanII: Fan2 temp point 3 */
178 0xE8 }, /* SmartFanII: Fan2 temp point 4 */
179 { 0x96, /* SmartFanII: Fan3 temp point 1 */
180 0xE9, /* SmartFanII: Fan3 temp point 2 */
181 0xEA, /* SmartFanII: Fan3 temp point 3 */
182 0xEB } /* SmartFanII: Fan3 temp point 4 */
183};
184
185static const u8 W83792D_REG_LEVELS[3][4] = {
186 { 0x88, /* (bit3-0) SmartFanII: Fan1 Non-Stop */
187 0x88, /* (bit7-4) SmartFanII: Fan1 Level 1 */
188 0xE0, /* (bit7-4) SmartFanII: Fan1 Level 2 */
189 0xE0 }, /* (bit3-0) SmartFanII: Fan1 Level 3 */
190 { 0x89, /* (bit3-0) SmartFanII: Fan2 Non-Stop */
191 0x89, /* (bit7-4) SmartFanII: Fan2 Level 1 */
192 0xE1, /* (bit7-4) SmartFanII: Fan2 Level 2 */
193 0xE1 }, /* (bit3-0) SmartFanII: Fan2 Level 3 */
194 { 0x98, /* (bit3-0) SmartFanII: Fan3 Non-Stop */
195 0x98, /* (bit7-4) SmartFanII: Fan3 Level 1 */
196 0xE2, /* (bit7-4) SmartFanII: Fan3 Level 2 */
197 0xE2 } /* (bit3-0) SmartFanII: Fan3 Level 3 */
198};
199
200#define W83792D_REG_GPIO_EN 0x1A
201#define W83792D_REG_CONFIG 0x40
202#define W83792D_REG_VID_FANDIV 0x47
203#define W83792D_REG_CHIPID 0x49
204#define W83792D_REG_WCHIPID 0x58
205#define W83792D_REG_CHIPMAN 0x4F
206#define W83792D_REG_PIN 0x4B
207#define W83792D_REG_I2C_SUBADDR 0x4A
208
209#define W83792D_REG_ALARM1 0xA9 /* realtime status register1 */
210#define W83792D_REG_ALARM2 0xAA /* realtime status register2 */
211#define W83792D_REG_ALARM3 0xAB /* realtime status register3 */
212#define W83792D_REG_CHASSIS 0x42 /* Bit 5: Case Open status bit */
213#define W83792D_REG_CHASSIS_CLR 0x44 /* Bit 7: Case Open CLR_CHS/Reset bit */
214
215/* control in0/in1 's limit modifiability */
216#define W83792D_REG_VID_IN_B 0x17
217
218#define W83792D_REG_VBAT 0x5D
219#define W83792D_REG_I2C_ADDR 0x48
220
221/*
222 * Conversions. Rounding and limit checking is only done on the TO_REG
223 * variants. Note that you should be a bit careful with which arguments
224 * these macros are called: arguments may be evaluated more than once.
225 * Fixing this is just not worth it.
226 */
227#define IN_FROM_REG(nr, val) (((nr) <= 1) ? ((val) * 2) : \
228 ((((nr) == 6) || ((nr) == 7)) ? ((val) * 6) : ((val) * 4)))
229#define IN_TO_REG(nr, val) (((nr) <= 1) ? ((val) / 2) : \
230 ((((nr) == 6) || ((nr) == 7)) ? ((val) / 6) : ((val) / 4)))
231
232static inline u8
233FAN_TO_REG(long rpm, int div)
234{
235 if (rpm == 0)
236 return 255;
237 rpm = SENSORS_LIMIT(rpm, 1, 1000000);
238 return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 254);
239}
240
241#define FAN_FROM_REG(val, div) ((val) == 0 ? -1 : \
242 ((val) == 255 ? 0 : \
243 1350000 / ((val) * (div))))
244
245/* for temp1 */
246#define TEMP1_TO_REG(val) (SENSORS_LIMIT(((val) < 0 ? (val)+0x100*1000 \
247 : (val)) / 1000, 0, 0xff))
248#define TEMP1_FROM_REG(val) (((val) & 0x80 ? (val)-0x100 : (val)) * 1000)
249/* for temp2 and temp3, because they need additional resolution */
250#define TEMP_ADD_FROM_REG(val1, val2) \
251 ((((val1) & 0x80 ? (val1)-0x100 \
252 : (val1)) * 1000) + ((val2 & 0x80) ? 500 : 0))
253#define TEMP_ADD_TO_REG_HIGH(val) \
254 (SENSORS_LIMIT(((val) < 0 ? (val)+0x100*1000 \
255 : (val)) / 1000, 0, 0xff))
256#define TEMP_ADD_TO_REG_LOW(val) ((val%1000) ? 0x80 : 0x00)
257
258#define DIV_FROM_REG(val) (1 << (val))
259
260static inline u8
261DIV_TO_REG(long val)
262{
263 int i;
264 val = SENSORS_LIMIT(val, 1, 128) >> 1;
265 for (i = 0; i < 7; i++) {
266 if (val == 0)
267 break;
268 val >>= 1;
269 }
270 return (u8)i;
271}
272
273struct w83792d_data {
274 struct device *hwmon_dev;
275
276 struct mutex update_lock;
277 char valid; /* !=0 if following fields are valid */
278 unsigned long last_updated; /* In jiffies */
279
280 /* array of 2 pointers to subclients */
281 struct i2c_client *lm75[2];
282
283 u8 in[9]; /* Register value */
284 u8 in_max[9]; /* Register value */
285 u8 in_min[9]; /* Register value */
286 u16 low_bits; /* Additional resolution to voltage in6-0 */
287 u8 fan[7]; /* Register value */
288 u8 fan_min[7]; /* Register value */
289 u8 temp1[3]; /* current, over, thyst */
290 u8 temp_add[2][6]; /* Register value */
291 u8 fan_div[7]; /* Register encoding, shifted right */
292 u8 pwm[7]; /*
293 * We only consider the first 3 set of pwm,
294 * although 792 chip has 7 set of pwm.
295 */
296 u8 pwmenable[3];
297 u32 alarms; /* realtime status register encoding,combined */
298 u8 chassis; /* Chassis status */
299 u8 chassis_clear; /* CLR_CHS, clear chassis intrusion detection */
300 u8 thermal_cruise[3]; /* Smart FanI: Fan1,2,3 target value */
301 u8 tolerance[3]; /* Fan1,2,3 tolerance(Smart Fan I/II) */
302 u8 sf2_points[3][4]; /* Smart FanII: Fan1,2,3 temperature points */
303 u8 sf2_levels[3][4]; /* Smart FanII: Fan1,2,3 duty cycle levels */
304};
305
306static int w83792d_probe(struct i2c_client *client,
307 const struct i2c_device_id *id);
308static int w83792d_detect(struct i2c_client *client,
309 struct i2c_board_info *info);
310static int w83792d_remove(struct i2c_client *client);
311static struct w83792d_data *w83792d_update_device(struct device *dev);
312
313#ifdef DEBUG
314static void w83792d_print_debug(struct w83792d_data *data, struct device *dev);
315#endif
316
317static void w83792d_init_client(struct i2c_client *client);
318
319static const struct i2c_device_id w83792d_id[] = {
320 { "w83792d", 0 },
321 { }
322};
323MODULE_DEVICE_TABLE(i2c, w83792d_id);
324
325static struct i2c_driver w83792d_driver = {
326 .class = I2C_CLASS_HWMON,
327 .driver = {
328 .name = "w83792d",
329 },
330 .probe = w83792d_probe,
331 .remove = w83792d_remove,
332 .id_table = w83792d_id,
333 .detect = w83792d_detect,
334 .address_list = normal_i2c,
335};
336
337static inline long in_count_from_reg(int nr, struct w83792d_data *data)
338{
339 /* in7 and in8 do not have low bits, but the formula still works */
340 return (data->in[nr] << 2) | ((data->low_bits >> (2 * nr)) & 0x03);
341}
342
343/*
344 * The SMBus locks itself. The Winbond W83792D chip has a bank register,
345 * but the driver only accesses registers in bank 0, so we don't have
346 * to switch banks and lock access between switches.
347 */
348static inline int w83792d_read_value(struct i2c_client *client, u8 reg)
349{
350 return i2c_smbus_read_byte_data(client, reg);
351}
352
353static inline int
354w83792d_write_value(struct i2c_client *client, u8 reg, u8 value)
355{
356 return i2c_smbus_write_byte_data(client, reg, value);
357}
358
359/* following are the sysfs callback functions */
360static ssize_t show_in(struct device *dev, struct device_attribute *attr,
361 char *buf)
362{
363 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
364 int nr = sensor_attr->index;
365 struct w83792d_data *data = w83792d_update_device(dev);
366 return sprintf(buf, "%ld\n",
367 IN_FROM_REG(nr, in_count_from_reg(nr, data)));
368}
369
370#define show_in_reg(reg) \
371static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
372 char *buf) \
373{ \
374 struct sensor_device_attribute *sensor_attr \
375 = to_sensor_dev_attr(attr); \
376 int nr = sensor_attr->index; \
377 struct w83792d_data *data = w83792d_update_device(dev); \
378 return sprintf(buf, "%ld\n", \
379 (long)(IN_FROM_REG(nr, data->reg[nr]) * 4)); \
380}
381
382show_in_reg(in_min);
383show_in_reg(in_max);
384
385#define store_in_reg(REG, reg) \
386static ssize_t store_in_##reg(struct device *dev, \
387 struct device_attribute *attr, \
388 const char *buf, size_t count) \
389{ \
390 struct sensor_device_attribute *sensor_attr \
391 = to_sensor_dev_attr(attr); \
392 int nr = sensor_attr->index; \
393 struct i2c_client *client = to_i2c_client(dev); \
394 struct w83792d_data *data = i2c_get_clientdata(client); \
395 unsigned long val; \
396 int err = kstrtoul(buf, 10, &val); \
397 if (err) \
398 return err; \
399 mutex_lock(&data->update_lock); \
400 data->in_##reg[nr] = SENSORS_LIMIT(IN_TO_REG(nr, val) / 4, 0, 255); \
401 w83792d_write_value(client, W83792D_REG_IN_##REG[nr], \
402 data->in_##reg[nr]); \
403 mutex_unlock(&data->update_lock); \
404 \
405 return count; \
406}
407store_in_reg(MIN, min);
408store_in_reg(MAX, max);
409
410#define show_fan_reg(reg) \
411static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
412 char *buf) \
413{ \
414 struct sensor_device_attribute *sensor_attr \
415 = to_sensor_dev_attr(attr); \
416 int nr = sensor_attr->index - 1; \
417 struct w83792d_data *data = w83792d_update_device(dev); \
418 return sprintf(buf, "%d\n", \
419 FAN_FROM_REG(data->reg[nr], DIV_FROM_REG(data->fan_div[nr]))); \
420}
421
422show_fan_reg(fan);
423show_fan_reg(fan_min);
424
425static ssize_t
426store_fan_min(struct device *dev, struct device_attribute *attr,
427 const char *buf, size_t count)
428{
429 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
430 int nr = sensor_attr->index - 1;
431 struct i2c_client *client = to_i2c_client(dev);
432 struct w83792d_data *data = i2c_get_clientdata(client);
433 unsigned long val;
434 int err;
435
436 err = kstrtoul(buf, 10, &val);
437 if (err)
438 return err;
439
440 mutex_lock(&data->update_lock);
441 data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
442 w83792d_write_value(client, W83792D_REG_FAN_MIN[nr],
443 data->fan_min[nr]);
444 mutex_unlock(&data->update_lock);
445
446 return count;
447}
448
449static ssize_t
450show_fan_div(struct device *dev, struct device_attribute *attr,
451 char *buf)
452{
453 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
454 int nr = sensor_attr->index;
455 struct w83792d_data *data = w83792d_update_device(dev);
456 return sprintf(buf, "%u\n", DIV_FROM_REG(data->fan_div[nr - 1]));
457}
458
459/*
460 * Note: we save and restore the fan minimum here, because its value is
461 * determined in part by the fan divisor. This follows the principle of
462 * least surprise; the user doesn't expect the fan minimum to change just
463 * because the divisor changed.
464 */
465static ssize_t
466store_fan_div(struct device *dev, struct device_attribute *attr,
467 const char *buf, size_t count)
468{
469 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
470 int nr = sensor_attr->index - 1;
471 struct i2c_client *client = to_i2c_client(dev);
472 struct w83792d_data *data = i2c_get_clientdata(client);
473 unsigned long min;
474 /*u8 reg;*/
475 u8 fan_div_reg = 0;
476 u8 tmp_fan_div;
477 unsigned long val;
478 int err;
479
480 err = kstrtoul(buf, 10, &val);
481 if (err)
482 return err;
483
484 /* Save fan_min */
485 mutex_lock(&data->update_lock);
486 min = FAN_FROM_REG(data->fan_min[nr],
487 DIV_FROM_REG(data->fan_div[nr]));
488
489 data->fan_div[nr] = DIV_TO_REG(val);
490
491 fan_div_reg = w83792d_read_value(client, W83792D_REG_FAN_DIV[nr >> 1]);
492 fan_div_reg &= (nr & 0x01) ? 0x8f : 0xf8;
493 tmp_fan_div = (nr & 0x01) ? (((data->fan_div[nr]) << 4) & 0x70)
494 : ((data->fan_div[nr]) & 0x07);
495 w83792d_write_value(client, W83792D_REG_FAN_DIV[nr >> 1],
496 fan_div_reg | tmp_fan_div);
497
498 /* Restore fan_min */
499 data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
500 w83792d_write_value(client, W83792D_REG_FAN_MIN[nr], data->fan_min[nr]);
501 mutex_unlock(&data->update_lock);
502
503 return count;
504}
505
506/* read/write the temperature1, includes measured value and limits */
507
508static ssize_t show_temp1(struct device *dev, struct device_attribute *attr,
509 char *buf)
510{
511 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
512 int nr = sensor_attr->index;
513 struct w83792d_data *data = w83792d_update_device(dev);
514 return sprintf(buf, "%d\n", TEMP1_FROM_REG(data->temp1[nr]));
515}
516
517static ssize_t store_temp1(struct device *dev, struct device_attribute *attr,
518 const char *buf, size_t count)
519{
520 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
521 int nr = sensor_attr->index;
522 struct i2c_client *client = to_i2c_client(dev);
523 struct w83792d_data *data = i2c_get_clientdata(client);
524 long val;
525 int err;
526
527 err = kstrtol(buf, 10, &val);
528 if (err)
529 return err;
530
531 mutex_lock(&data->update_lock);
532 data->temp1[nr] = TEMP1_TO_REG(val);
533 w83792d_write_value(client, W83792D_REG_TEMP1[nr],
534 data->temp1[nr]);
535 mutex_unlock(&data->update_lock);
536
537 return count;
538}
539
540/* read/write the temperature2-3, includes measured value and limits */
541
542static ssize_t show_temp23(struct device *dev, struct device_attribute *attr,
543 char *buf)
544{
545 struct sensor_device_attribute_2 *sensor_attr
546 = to_sensor_dev_attr_2(attr);
547 int nr = sensor_attr->nr;
548 int index = sensor_attr->index;
549 struct w83792d_data *data = w83792d_update_device(dev);
550 return sprintf(buf, "%ld\n",
551 (long)TEMP_ADD_FROM_REG(data->temp_add[nr][index],
552 data->temp_add[nr][index+1]));
553}
554
555static ssize_t store_temp23(struct device *dev, struct device_attribute *attr,
556 const char *buf, size_t count)
557{
558 struct sensor_device_attribute_2 *sensor_attr
559 = to_sensor_dev_attr_2(attr);
560 int nr = sensor_attr->nr;
561 int index = sensor_attr->index;
562 struct i2c_client *client = to_i2c_client(dev);
563 struct w83792d_data *data = i2c_get_clientdata(client);
564 long val;
565 int err;
566
567 err = kstrtol(buf, 10, &val);
568 if (err)
569 return err;
570
571 mutex_lock(&data->update_lock);
572 data->temp_add[nr][index] = TEMP_ADD_TO_REG_HIGH(val);
573 data->temp_add[nr][index+1] = TEMP_ADD_TO_REG_LOW(val);
574 w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index],
575 data->temp_add[nr][index]);
576 w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index+1],
577 data->temp_add[nr][index+1]);
578 mutex_unlock(&data->update_lock);
579
580 return count;
581}
582
583/* get reatime status of all sensors items: voltage, temp, fan */
584static ssize_t
585show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf)
586{
587 struct w83792d_data *data = w83792d_update_device(dev);
588 return sprintf(buf, "%d\n", data->alarms);
589}
590
591static ssize_t show_alarm(struct device *dev,
592 struct device_attribute *attr, char *buf)
593{
594 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
595 int nr = sensor_attr->index;
596 struct w83792d_data *data = w83792d_update_device(dev);
597 return sprintf(buf, "%d\n", (data->alarms >> nr) & 1);
598}
599
600static ssize_t
601show_pwm(struct device *dev, struct device_attribute *attr,
602 char *buf)
603{
604 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
605 int nr = sensor_attr->index;
606 struct w83792d_data *data = w83792d_update_device(dev);
607 return sprintf(buf, "%d\n", (data->pwm[nr] & 0x0f) << 4);
608}
609
610static ssize_t
611show_pwmenable(struct device *dev, struct device_attribute *attr,
612 char *buf)
613{
614 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
615 int nr = sensor_attr->index - 1;
616 struct w83792d_data *data = w83792d_update_device(dev);
617 long pwm_enable_tmp = 1;
618
619 switch (data->pwmenable[nr]) {
620 case 0:
621 pwm_enable_tmp = 1; /* manual mode */
622 break;
623 case 1:
624 pwm_enable_tmp = 3; /*thermal cruise/Smart Fan I */
625 break;
626 case 2:
627 pwm_enable_tmp = 2; /* Smart Fan II */
628 break;
629 }
630
631 return sprintf(buf, "%ld\n", pwm_enable_tmp);
632}
633
634static ssize_t
635store_pwm(struct device *dev, struct device_attribute *attr,
636 const char *buf, size_t count)
637{
638 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
639 int nr = sensor_attr->index;
640 struct i2c_client *client = to_i2c_client(dev);
641 struct w83792d_data *data = i2c_get_clientdata(client);
642 unsigned long val;
643 int err;
644
645 err = kstrtoul(buf, 10, &val);
646 if (err)
647 return err;
648 val = SENSORS_LIMIT(val, 0, 255) >> 4;
649
650 mutex_lock(&data->update_lock);
651 val |= w83792d_read_value(client, W83792D_REG_PWM[nr]) & 0xf0;
652 data->pwm[nr] = val;
653 w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]);
654 mutex_unlock(&data->update_lock);
655
656 return count;
657}
658
659static ssize_t
660store_pwmenable(struct device *dev, struct device_attribute *attr,
661 const char *buf, size_t count)
662{
663 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
664 int nr = sensor_attr->index - 1;
665 struct i2c_client *client = to_i2c_client(dev);
666 struct w83792d_data *data = i2c_get_clientdata(client);
667 u8 fan_cfg_tmp, cfg1_tmp, cfg2_tmp, cfg3_tmp, cfg4_tmp;
668 unsigned long val;
669 int err;
670
671 err = kstrtoul(buf, 10, &val);
672 if (err)
673 return err;
674
675 if (val < 1 || val > 3)
676 return -EINVAL;
677
678 mutex_lock(&data->update_lock);
679 switch (val) {
680 case 1:
681 data->pwmenable[nr] = 0; /* manual mode */
682 break;
683 case 2:
684 data->pwmenable[nr] = 2; /* Smart Fan II */
685 break;
686 case 3:
687 data->pwmenable[nr] = 1; /* thermal cruise/Smart Fan I */
688 break;
689 }
690 cfg1_tmp = data->pwmenable[0];
691 cfg2_tmp = (data->pwmenable[1]) << 2;
692 cfg3_tmp = (data->pwmenable[2]) << 4;
693 cfg4_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG) & 0xc0;
694 fan_cfg_tmp = ((cfg4_tmp | cfg3_tmp) | cfg2_tmp) | cfg1_tmp;
695 w83792d_write_value(client, W83792D_REG_FAN_CFG, fan_cfg_tmp);
696 mutex_unlock(&data->update_lock);
697
698 return count;
699}
700
701static ssize_t
702show_pwm_mode(struct device *dev, struct device_attribute *attr,
703 char *buf)
704{
705 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
706 int nr = sensor_attr->index;
707 struct w83792d_data *data = w83792d_update_device(dev);
708 return sprintf(buf, "%d\n", data->pwm[nr] >> 7);
709}
710
711static ssize_t
712store_pwm_mode(struct device *dev, struct device_attribute *attr,
713 const char *buf, size_t count)
714{
715 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
716 int nr = sensor_attr->index;
717 struct i2c_client *client = to_i2c_client(dev);
718 struct w83792d_data *data = i2c_get_clientdata(client);
719 unsigned long val;
720 int err;
721
722 err = kstrtoul(buf, 10, &val);
723 if (err)
724 return err;
725 if (val > 1)
726 return -EINVAL;
727
728 mutex_lock(&data->update_lock);
729 data->pwm[nr] = w83792d_read_value(client, W83792D_REG_PWM[nr]);
730 if (val) { /* PWM mode */
731 data->pwm[nr] |= 0x80;
732 } else { /* DC mode */
733 data->pwm[nr] &= 0x7f;
734 }
735 w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]);
736 mutex_unlock(&data->update_lock);
737
738 return count;
739}
740
741static ssize_t
742show_chassis(struct device *dev, struct device_attribute *attr,
743 char *buf)
744{
745 struct w83792d_data *data = w83792d_update_device(dev);
746 return sprintf(buf, "%d\n", data->chassis);
747}
748
749static ssize_t
750show_regs_chassis(struct device *dev, struct device_attribute *attr,
751 char *buf)
752{
753 dev_warn(dev,
754 "Attribute %s is deprecated, use intrusion0_alarm instead\n",
755 "chassis");
756 return show_chassis(dev, attr, buf);
757}
758
759static ssize_t
760show_chassis_clear(struct device *dev, struct device_attribute *attr, char *buf)
761{
762 struct w83792d_data *data = w83792d_update_device(dev);
763 return sprintf(buf, "%d\n", data->chassis_clear);
764}
765
766static ssize_t
767store_chassis_clear_legacy(struct device *dev, struct device_attribute *attr,
768 const char *buf, size_t count)
769{
770 struct i2c_client *client = to_i2c_client(dev);
771 struct w83792d_data *data = i2c_get_clientdata(client);
772 unsigned long val;
773 int err;
774 u8 temp1 = 0, temp2 = 0;
775
776 dev_warn(dev,
777 "Attribute %s is deprecated, use intrusion0_alarm instead\n",
778 "chassis_clear");
779
780 err = kstrtoul(buf, 10, &val);
781 if (err)
782 return err;
783
784 mutex_lock(&data->update_lock);
785 data->chassis_clear = SENSORS_LIMIT(val, 0, 1);
786 temp1 = ((data->chassis_clear) << 7) & 0x80;
787 temp2 = w83792d_read_value(client,
788 W83792D_REG_CHASSIS_CLR) & 0x7f;
789 w83792d_write_value(client, W83792D_REG_CHASSIS_CLR, temp1 | temp2);
790 mutex_unlock(&data->update_lock);
791
792 return count;
793}
794
795static ssize_t
796store_chassis_clear(struct device *dev, struct device_attribute *attr,
797 const char *buf, size_t count)
798{
799 struct i2c_client *client = to_i2c_client(dev);
800 struct w83792d_data *data = i2c_get_clientdata(client);
801 unsigned long val;
802 u8 reg;
803
804 if (kstrtoul(buf, 10, &val) || val != 0)
805 return -EINVAL;
806
807 mutex_lock(&data->update_lock);
808 reg = w83792d_read_value(client, W83792D_REG_CHASSIS_CLR);
809 w83792d_write_value(client, W83792D_REG_CHASSIS_CLR, reg | 0x80);
810 data->valid = 0; /* Force cache refresh */
811 mutex_unlock(&data->update_lock);
812
813 return count;
814}
815
816/* For Smart Fan I / Thermal Cruise */
817static ssize_t
818show_thermal_cruise(struct device *dev, struct device_attribute *attr,
819 char *buf)
820{
821 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
822 int nr = sensor_attr->index;
823 struct w83792d_data *data = w83792d_update_device(dev);
824 return sprintf(buf, "%ld\n", (long)data->thermal_cruise[nr-1]);
825}
826
827static ssize_t
828store_thermal_cruise(struct device *dev, struct device_attribute *attr,
829 const char *buf, size_t count)
830{
831 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
832 int nr = sensor_attr->index - 1;
833 struct i2c_client *client = to_i2c_client(dev);
834 struct w83792d_data *data = i2c_get_clientdata(client);
835 u8 target_tmp = 0, target_mask = 0;
836 unsigned long val;
837 int err;
838
839 err = kstrtoul(buf, 10, &val);
840 if (err)
841 return err;
842
843 target_tmp = val;
844 target_tmp = target_tmp & 0x7f;
845 mutex_lock(&data->update_lock);
846 target_mask = w83792d_read_value(client,
847 W83792D_REG_THERMAL[nr]) & 0x80;
848 data->thermal_cruise[nr] = SENSORS_LIMIT(target_tmp, 0, 255);
849 w83792d_write_value(client, W83792D_REG_THERMAL[nr],
850 (data->thermal_cruise[nr]) | target_mask);
851 mutex_unlock(&data->update_lock);
852
853 return count;
854}
855
856/* For Smart Fan I/Thermal Cruise and Smart Fan II */
857static ssize_t
858show_tolerance(struct device *dev, struct device_attribute *attr,
859 char *buf)
860{
861 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
862 int nr = sensor_attr->index;
863 struct w83792d_data *data = w83792d_update_device(dev);
864 return sprintf(buf, "%ld\n", (long)data->tolerance[nr-1]);
865}
866
867static ssize_t
868store_tolerance(struct device *dev, struct device_attribute *attr,
869 const char *buf, size_t count)
870{
871 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
872 int nr = sensor_attr->index - 1;
873 struct i2c_client *client = to_i2c_client(dev);
874 struct w83792d_data *data = i2c_get_clientdata(client);
875 u8 tol_tmp, tol_mask;
876 unsigned long val;
877 int err;
878
879 err = kstrtoul(buf, 10, &val);
880 if (err)
881 return err;
882
883 mutex_lock(&data->update_lock);
884 tol_mask = w83792d_read_value(client,
885 W83792D_REG_TOLERANCE[nr]) & ((nr == 1) ? 0x0f : 0xf0);
886 tol_tmp = SENSORS_LIMIT(val, 0, 15);
887 tol_tmp &= 0x0f;
888 data->tolerance[nr] = tol_tmp;
889 if (nr == 1)
890 tol_tmp <<= 4;
891 w83792d_write_value(client, W83792D_REG_TOLERANCE[nr],
892 tol_mask | tol_tmp);
893 mutex_unlock(&data->update_lock);
894
895 return count;
896}
897
898/* For Smart Fan II */
899static ssize_t
900show_sf2_point(struct device *dev, struct device_attribute *attr,
901 char *buf)
902{
903 struct sensor_device_attribute_2 *sensor_attr
904 = to_sensor_dev_attr_2(attr);
905 int nr = sensor_attr->nr;
906 int index = sensor_attr->index;
907 struct w83792d_data *data = w83792d_update_device(dev);
908 return sprintf(buf, "%ld\n", (long)data->sf2_points[index-1][nr-1]);
909}
910
911static ssize_t
912store_sf2_point(struct device *dev, struct device_attribute *attr,
913 const char *buf, size_t count)
914{
915 struct sensor_device_attribute_2 *sensor_attr
916 = to_sensor_dev_attr_2(attr);
917 int nr = sensor_attr->nr - 1;
918 int index = sensor_attr->index - 1;
919 struct i2c_client *client = to_i2c_client(dev);
920 struct w83792d_data *data = i2c_get_clientdata(client);
921 u8 mask_tmp = 0;
922 unsigned long val;
923 int err;
924
925 err = kstrtoul(buf, 10, &val);
926 if (err)
927 return err;
928
929 mutex_lock(&data->update_lock);
930 data->sf2_points[index][nr] = SENSORS_LIMIT(val, 0, 127);
931 mask_tmp = w83792d_read_value(client,
932 W83792D_REG_POINTS[index][nr]) & 0x80;
933 w83792d_write_value(client, W83792D_REG_POINTS[index][nr],
934 mask_tmp|data->sf2_points[index][nr]);
935 mutex_unlock(&data->update_lock);
936
937 return count;
938}
939
940static ssize_t
941show_sf2_level(struct device *dev, struct device_attribute *attr,
942 char *buf)
943{
944 struct sensor_device_attribute_2 *sensor_attr
945 = to_sensor_dev_attr_2(attr);
946 int nr = sensor_attr->nr;
947 int index = sensor_attr->index;
948 struct w83792d_data *data = w83792d_update_device(dev);
949 return sprintf(buf, "%d\n",
950 (((data->sf2_levels[index-1][nr]) * 100) / 15));
951}
952
953static ssize_t
954store_sf2_level(struct device *dev, struct device_attribute *attr,
955 const char *buf, size_t count)
956{
957 struct sensor_device_attribute_2 *sensor_attr
958 = to_sensor_dev_attr_2(attr);
959 int nr = sensor_attr->nr;
960 int index = sensor_attr->index - 1;
961 struct i2c_client *client = to_i2c_client(dev);
962 struct w83792d_data *data = i2c_get_clientdata(client);
963 u8 mask_tmp = 0, level_tmp = 0;
964 unsigned long val;
965 int err;
966
967 err = kstrtoul(buf, 10, &val);
968 if (err)
969 return err;
970
971 mutex_lock(&data->update_lock);
972 data->sf2_levels[index][nr] = SENSORS_LIMIT((val * 15) / 100, 0, 15);
973 mask_tmp = w83792d_read_value(client, W83792D_REG_LEVELS[index][nr])
974 & ((nr == 3) ? 0xf0 : 0x0f);
975 if (nr == 3)
976 level_tmp = data->sf2_levels[index][nr];
977 else
978 level_tmp = data->sf2_levels[index][nr] << 4;
979 w83792d_write_value(client, W83792D_REG_LEVELS[index][nr],
980 level_tmp | mask_tmp);
981 mutex_unlock(&data->update_lock);
982
983 return count;
984}
985
986
987static int
988w83792d_detect_subclients(struct i2c_client *new_client)
989{
990 int i, id, err;
991 int address = new_client->addr;
992 u8 val;
993 struct i2c_adapter *adapter = new_client->adapter;
994 struct w83792d_data *data = i2c_get_clientdata(new_client);
995
996 id = i2c_adapter_id(adapter);
997 if (force_subclients[0] == id && force_subclients[1] == address) {
998 for (i = 2; i <= 3; i++) {
999 if (force_subclients[i] < 0x48 ||
1000 force_subclients[i] > 0x4f) {
1001 dev_err(&new_client->dev, "invalid subclient "
1002 "address %d; must be 0x48-0x4f\n",
1003 force_subclients[i]);
1004 err = -ENODEV;
1005 goto ERROR_SC_0;
1006 }
1007 }
1008 w83792d_write_value(new_client, W83792D_REG_I2C_SUBADDR,
1009 (force_subclients[2] & 0x07) |
1010 ((force_subclients[3] & 0x07) << 4));
1011 }
1012
1013 val = w83792d_read_value(new_client, W83792D_REG_I2C_SUBADDR);
1014 if (!(val & 0x08))
1015 data->lm75[0] = i2c_new_dummy(adapter, 0x48 + (val & 0x7));
1016 if (!(val & 0x80)) {
1017 if ((data->lm75[0] != NULL) &&
1018 ((val & 0x7) == ((val >> 4) & 0x7))) {
1019 dev_err(&new_client->dev, "duplicate addresses 0x%x, "
1020 "use force_subclient\n", data->lm75[0]->addr);
1021 err = -ENODEV;
1022 goto ERROR_SC_1;
1023 }
1024 data->lm75[1] = i2c_new_dummy(adapter,
1025 0x48 + ((val >> 4) & 0x7));
1026 }
1027
1028 return 0;
1029
1030/* Undo inits in case of errors */
1031
1032ERROR_SC_1:
1033 if (data->lm75[0] != NULL)
1034 i2c_unregister_device(data->lm75[0]);
1035ERROR_SC_0:
1036 return err;
1037}
1038
1039static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0);
1040static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1);
1041static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2);
1042static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3);
1043static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 4);
1044static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 5);
1045static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 6);
1046static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 7);
1047static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_in, NULL, 8);
1048static SENSOR_DEVICE_ATTR(in0_min, S_IWUSR | S_IRUGO,
1049 show_in_min, store_in_min, 0);
1050static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO,
1051 show_in_min, store_in_min, 1);
1052static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO,
1053 show_in_min, store_in_min, 2);
1054static SENSOR_DEVICE_ATTR(in3_min, S_IWUSR | S_IRUGO,
1055 show_in_min, store_in_min, 3);
1056static SENSOR_DEVICE_ATTR(in4_min, S_IWUSR | S_IRUGO,
1057 show_in_min, store_in_min, 4);
1058static SENSOR_DEVICE_ATTR(in5_min, S_IWUSR | S_IRUGO,
1059 show_in_min, store_in_min, 5);
1060static SENSOR_DEVICE_ATTR(in6_min, S_IWUSR | S_IRUGO,
1061 show_in_min, store_in_min, 6);
1062static SENSOR_DEVICE_ATTR(in7_min, S_IWUSR | S_IRUGO,
1063 show_in_min, store_in_min, 7);
1064static SENSOR_DEVICE_ATTR(in8_min, S_IWUSR | S_IRUGO,
1065 show_in_min, store_in_min, 8);
1066static SENSOR_DEVICE_ATTR(in0_max, S_IWUSR | S_IRUGO,
1067 show_in_max, store_in_max, 0);
1068static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO,
1069 show_in_max, store_in_max, 1);
1070static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO,
1071 show_in_max, store_in_max, 2);
1072static SENSOR_DEVICE_ATTR(in3_max, S_IWUSR | S_IRUGO,
1073 show_in_max, store_in_max, 3);
1074static SENSOR_DEVICE_ATTR(in4_max, S_IWUSR | S_IRUGO,
1075 show_in_max, store_in_max, 4);
1076static SENSOR_DEVICE_ATTR(in5_max, S_IWUSR | S_IRUGO,
1077 show_in_max, store_in_max, 5);
1078static SENSOR_DEVICE_ATTR(in6_max, S_IWUSR | S_IRUGO,
1079 show_in_max, store_in_max, 6);
1080static SENSOR_DEVICE_ATTR(in7_max, S_IWUSR | S_IRUGO,
1081 show_in_max, store_in_max, 7);
1082static SENSOR_DEVICE_ATTR(in8_max, S_IWUSR | S_IRUGO,
1083 show_in_max, store_in_max, 8);
1084static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp1, NULL, 0, 0);
1085static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp23, NULL, 0, 0);
1086static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp23, NULL, 1, 0);
1087static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR,
1088 show_temp1, store_temp1, 0, 1);
1089static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp23,
1090 store_temp23, 0, 2);
1091static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp23,
1092 store_temp23, 1, 2);
1093static SENSOR_DEVICE_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR,
1094 show_temp1, store_temp1, 0, 2);
1095static SENSOR_DEVICE_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR,
1096 show_temp23, store_temp23, 0, 4);
1097static SENSOR_DEVICE_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR,
1098 show_temp23, store_temp23, 1, 4);
1099static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
1100static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
1101static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
1102static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 2);
1103static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 3);
1104static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 4);
1105static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 5);
1106static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 6);
1107static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 7);
1108static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 8);
1109static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 9);
1110static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 10);
1111static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 11);
1112static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 12);
1113static SENSOR_DEVICE_ATTR(fan7_alarm, S_IRUGO, show_alarm, NULL, 15);
1114static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 19);
1115static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 20);
1116static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 21);
1117static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 22);
1118static SENSOR_DEVICE_ATTR(fan6_alarm, S_IRUGO, show_alarm, NULL, 23);
1119static DEVICE_ATTR(chassis, S_IRUGO, show_regs_chassis, NULL);
1120static DEVICE_ATTR(chassis_clear, S_IRUGO | S_IWUSR,
1121 show_chassis_clear, store_chassis_clear_legacy);
1122static DEVICE_ATTR(intrusion0_alarm, S_IRUGO | S_IWUSR,
1123 show_chassis, store_chassis_clear);
1124static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0);
1125static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1);
1126static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2);
1127static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO,
1128 show_pwmenable, store_pwmenable, 1);
1129static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO,
1130 show_pwmenable, store_pwmenable, 2);
1131static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO,
1132 show_pwmenable, store_pwmenable, 3);
1133static SENSOR_DEVICE_ATTR(pwm1_mode, S_IWUSR | S_IRUGO,
1134 show_pwm_mode, store_pwm_mode, 0);
1135static SENSOR_DEVICE_ATTR(pwm2_mode, S_IWUSR | S_IRUGO,
1136 show_pwm_mode, store_pwm_mode, 1);
1137static SENSOR_DEVICE_ATTR(pwm3_mode, S_IWUSR | S_IRUGO,
1138 show_pwm_mode, store_pwm_mode, 2);
1139static SENSOR_DEVICE_ATTR(tolerance1, S_IWUSR | S_IRUGO,
1140 show_tolerance, store_tolerance, 1);
1141static SENSOR_DEVICE_ATTR(tolerance2, S_IWUSR | S_IRUGO,
1142 show_tolerance, store_tolerance, 2);
1143static SENSOR_DEVICE_ATTR(tolerance3, S_IWUSR | S_IRUGO,
1144 show_tolerance, store_tolerance, 3);
1145static SENSOR_DEVICE_ATTR(thermal_cruise1, S_IWUSR | S_IRUGO,
1146 show_thermal_cruise, store_thermal_cruise, 1);
1147static SENSOR_DEVICE_ATTR(thermal_cruise2, S_IWUSR | S_IRUGO,
1148 show_thermal_cruise, store_thermal_cruise, 2);
1149static SENSOR_DEVICE_ATTR(thermal_cruise3, S_IWUSR | S_IRUGO,
1150 show_thermal_cruise, store_thermal_cruise, 3);
1151static SENSOR_DEVICE_ATTR_2(sf2_point1_fan1, S_IRUGO | S_IWUSR,
1152 show_sf2_point, store_sf2_point, 1, 1);
1153static SENSOR_DEVICE_ATTR_2(sf2_point2_fan1, S_IRUGO | S_IWUSR,
1154 show_sf2_point, store_sf2_point, 2, 1);
1155static SENSOR_DEVICE_ATTR_2(sf2_point3_fan1, S_IRUGO | S_IWUSR,
1156 show_sf2_point, store_sf2_point, 3, 1);
1157static SENSOR_DEVICE_ATTR_2(sf2_point4_fan1, S_IRUGO | S_IWUSR,
1158 show_sf2_point, store_sf2_point, 4, 1);
1159static SENSOR_DEVICE_ATTR_2(sf2_point1_fan2, S_IRUGO | S_IWUSR,
1160 show_sf2_point, store_sf2_point, 1, 2);
1161static SENSOR_DEVICE_ATTR_2(sf2_point2_fan2, S_IRUGO | S_IWUSR,
1162 show_sf2_point, store_sf2_point, 2, 2);
1163static SENSOR_DEVICE_ATTR_2(sf2_point3_fan2, S_IRUGO | S_IWUSR,
1164 show_sf2_point, store_sf2_point, 3, 2);
1165static SENSOR_DEVICE_ATTR_2(sf2_point4_fan2, S_IRUGO | S_IWUSR,
1166 show_sf2_point, store_sf2_point, 4, 2);
1167static SENSOR_DEVICE_ATTR_2(sf2_point1_fan3, S_IRUGO | S_IWUSR,
1168 show_sf2_point, store_sf2_point, 1, 3);
1169static SENSOR_DEVICE_ATTR_2(sf2_point2_fan3, S_IRUGO | S_IWUSR,
1170 show_sf2_point, store_sf2_point, 2, 3);
1171static SENSOR_DEVICE_ATTR_2(sf2_point3_fan3, S_IRUGO | S_IWUSR,
1172 show_sf2_point, store_sf2_point, 3, 3);
1173static SENSOR_DEVICE_ATTR_2(sf2_point4_fan3, S_IRUGO | S_IWUSR,
1174 show_sf2_point, store_sf2_point, 4, 3);
1175static SENSOR_DEVICE_ATTR_2(sf2_level1_fan1, S_IRUGO | S_IWUSR,
1176 show_sf2_level, store_sf2_level, 1, 1);
1177static SENSOR_DEVICE_ATTR_2(sf2_level2_fan1, S_IRUGO | S_IWUSR,
1178 show_sf2_level, store_sf2_level, 2, 1);
1179static SENSOR_DEVICE_ATTR_2(sf2_level3_fan1, S_IRUGO | S_IWUSR,
1180 show_sf2_level, store_sf2_level, 3, 1);
1181static SENSOR_DEVICE_ATTR_2(sf2_level1_fan2, S_IRUGO | S_IWUSR,
1182 show_sf2_level, store_sf2_level, 1, 2);
1183static SENSOR_DEVICE_ATTR_2(sf2_level2_fan2, S_IRUGO | S_IWUSR,
1184 show_sf2_level, store_sf2_level, 2, 2);
1185static SENSOR_DEVICE_ATTR_2(sf2_level3_fan2, S_IRUGO | S_IWUSR,
1186 show_sf2_level, store_sf2_level, 3, 2);
1187static SENSOR_DEVICE_ATTR_2(sf2_level1_fan3, S_IRUGO | S_IWUSR,
1188 show_sf2_level, store_sf2_level, 1, 3);
1189static SENSOR_DEVICE_ATTR_2(sf2_level2_fan3, S_IRUGO | S_IWUSR,
1190 show_sf2_level, store_sf2_level, 2, 3);
1191static SENSOR_DEVICE_ATTR_2(sf2_level3_fan3, S_IRUGO | S_IWUSR,
1192 show_sf2_level, store_sf2_level, 3, 3);
1193static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 1);
1194static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 2);
1195static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 3);
1196static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 4);
1197static SENSOR_DEVICE_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 5);
1198static SENSOR_DEVICE_ATTR(fan6_input, S_IRUGO, show_fan, NULL, 6);
1199static SENSOR_DEVICE_ATTR(fan7_input, S_IRUGO, show_fan, NULL, 7);
1200static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO,
1201 show_fan_min, store_fan_min, 1);
1202static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO,
1203 show_fan_min, store_fan_min, 2);
1204static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO,
1205 show_fan_min, store_fan_min, 3);
1206static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO,
1207 show_fan_min, store_fan_min, 4);
1208static SENSOR_DEVICE_ATTR(fan5_min, S_IWUSR | S_IRUGO,
1209 show_fan_min, store_fan_min, 5);
1210static SENSOR_DEVICE_ATTR(fan6_min, S_IWUSR | S_IRUGO,
1211 show_fan_min, store_fan_min, 6);
1212static SENSOR_DEVICE_ATTR(fan7_min, S_IWUSR | S_IRUGO,
1213 show_fan_min, store_fan_min, 7);
1214static SENSOR_DEVICE_ATTR(fan1_div, S_IWUSR | S_IRUGO,
1215 show_fan_div, store_fan_div, 1);
1216static SENSOR_DEVICE_ATTR(fan2_div, S_IWUSR | S_IRUGO,
1217 show_fan_div, store_fan_div, 2);
1218static SENSOR_DEVICE_ATTR(fan3_div, S_IWUSR | S_IRUGO,
1219 show_fan_div, store_fan_div, 3);
1220static SENSOR_DEVICE_ATTR(fan4_div, S_IWUSR | S_IRUGO,
1221 show_fan_div, store_fan_div, 4);
1222static SENSOR_DEVICE_ATTR(fan5_div, S_IWUSR | S_IRUGO,
1223 show_fan_div, store_fan_div, 5);
1224static SENSOR_DEVICE_ATTR(fan6_div, S_IWUSR | S_IRUGO,
1225 show_fan_div, store_fan_div, 6);
1226static SENSOR_DEVICE_ATTR(fan7_div, S_IWUSR | S_IRUGO,
1227 show_fan_div, store_fan_div, 7);
1228
1229static struct attribute *w83792d_attributes_fan[4][5] = {
1230 {
1231 &sensor_dev_attr_fan4_input.dev_attr.attr,
1232 &sensor_dev_attr_fan4_min.dev_attr.attr,
1233 &sensor_dev_attr_fan4_div.dev_attr.attr,
1234 &sensor_dev_attr_fan4_alarm.dev_attr.attr,
1235 NULL
1236 }, {
1237 &sensor_dev_attr_fan5_input.dev_attr.attr,
1238 &sensor_dev_attr_fan5_min.dev_attr.attr,
1239 &sensor_dev_attr_fan5_div.dev_attr.attr,
1240 &sensor_dev_attr_fan5_alarm.dev_attr.attr,
1241 NULL
1242 }, {
1243 &sensor_dev_attr_fan6_input.dev_attr.attr,
1244 &sensor_dev_attr_fan6_min.dev_attr.attr,
1245 &sensor_dev_attr_fan6_div.dev_attr.attr,
1246 &sensor_dev_attr_fan6_alarm.dev_attr.attr,
1247 NULL
1248 }, {
1249 &sensor_dev_attr_fan7_input.dev_attr.attr,
1250 &sensor_dev_attr_fan7_min.dev_attr.attr,
1251 &sensor_dev_attr_fan7_div.dev_attr.attr,
1252 &sensor_dev_attr_fan7_alarm.dev_attr.attr,
1253 NULL
1254 }
1255};
1256
1257static const struct attribute_group w83792d_group_fan[4] = {
1258 { .attrs = w83792d_attributes_fan[0] },
1259 { .attrs = w83792d_attributes_fan[1] },
1260 { .attrs = w83792d_attributes_fan[2] },
1261 { .attrs = w83792d_attributes_fan[3] },
1262};
1263
1264static struct attribute *w83792d_attributes[] = {
1265 &sensor_dev_attr_in0_input.dev_attr.attr,
1266 &sensor_dev_attr_in0_max.dev_attr.attr,
1267 &sensor_dev_attr_in0_min.dev_attr.attr,
1268 &sensor_dev_attr_in1_input.dev_attr.attr,
1269 &sensor_dev_attr_in1_max.dev_attr.attr,
1270 &sensor_dev_attr_in1_min.dev_attr.attr,
1271 &sensor_dev_attr_in2_input.dev_attr.attr,
1272 &sensor_dev_attr_in2_max.dev_attr.attr,
1273 &sensor_dev_attr_in2_min.dev_attr.attr,
1274 &sensor_dev_attr_in3_input.dev_attr.attr,
1275 &sensor_dev_attr_in3_max.dev_attr.attr,
1276 &sensor_dev_attr_in3_min.dev_attr.attr,
1277 &sensor_dev_attr_in4_input.dev_attr.attr,
1278 &sensor_dev_attr_in4_max.dev_attr.attr,
1279 &sensor_dev_attr_in4_min.dev_attr.attr,
1280 &sensor_dev_attr_in5_input.dev_attr.attr,
1281 &sensor_dev_attr_in5_max.dev_attr.attr,
1282 &sensor_dev_attr_in5_min.dev_attr.attr,
1283 &sensor_dev_attr_in6_input.dev_attr.attr,
1284 &sensor_dev_attr_in6_max.dev_attr.attr,
1285 &sensor_dev_attr_in6_min.dev_attr.attr,
1286 &sensor_dev_attr_in7_input.dev_attr.attr,
1287 &sensor_dev_attr_in7_max.dev_attr.attr,
1288 &sensor_dev_attr_in7_min.dev_attr.attr,
1289 &sensor_dev_attr_in8_input.dev_attr.attr,
1290 &sensor_dev_attr_in8_max.dev_attr.attr,
1291 &sensor_dev_attr_in8_min.dev_attr.attr,
1292 &sensor_dev_attr_in0_alarm.dev_attr.attr,
1293 &sensor_dev_attr_in1_alarm.dev_attr.attr,
1294 &sensor_dev_attr_in2_alarm.dev_attr.attr,
1295 &sensor_dev_attr_in3_alarm.dev_attr.attr,
1296 &sensor_dev_attr_in4_alarm.dev_attr.attr,
1297 &sensor_dev_attr_in5_alarm.dev_attr.attr,
1298 &sensor_dev_attr_in6_alarm.dev_attr.attr,
1299 &sensor_dev_attr_in7_alarm.dev_attr.attr,
1300 &sensor_dev_attr_in8_alarm.dev_attr.attr,
1301 &sensor_dev_attr_temp1_input.dev_attr.attr,
1302 &sensor_dev_attr_temp1_max.dev_attr.attr,
1303 &sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
1304 &sensor_dev_attr_temp2_input.dev_attr.attr,
1305 &sensor_dev_attr_temp2_max.dev_attr.attr,
1306 &sensor_dev_attr_temp2_max_hyst.dev_attr.attr,
1307 &sensor_dev_attr_temp3_input.dev_attr.attr,
1308 &sensor_dev_attr_temp3_max.dev_attr.attr,
1309 &sensor_dev_attr_temp3_max_hyst.dev_attr.attr,
1310 &sensor_dev_attr_temp1_alarm.dev_attr.attr,
1311 &sensor_dev_attr_temp2_alarm.dev_attr.attr,
1312 &sensor_dev_attr_temp3_alarm.dev_attr.attr,
1313 &sensor_dev_attr_pwm1.dev_attr.attr,
1314 &sensor_dev_attr_pwm1_mode.dev_attr.attr,
1315 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
1316 &sensor_dev_attr_pwm2.dev_attr.attr,
1317 &sensor_dev_attr_pwm2_mode.dev_attr.attr,
1318 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
1319 &sensor_dev_attr_pwm3.dev_attr.attr,
1320 &sensor_dev_attr_pwm3_mode.dev_attr.attr,
1321 &sensor_dev_attr_pwm3_enable.dev_attr.attr,
1322 &dev_attr_alarms.attr,
1323 &dev_attr_chassis.attr,
1324 &dev_attr_chassis_clear.attr,
1325 &dev_attr_intrusion0_alarm.attr,
1326 &sensor_dev_attr_tolerance1.dev_attr.attr,
1327 &sensor_dev_attr_thermal_cruise1.dev_attr.attr,
1328 &sensor_dev_attr_tolerance2.dev_attr.attr,
1329 &sensor_dev_attr_thermal_cruise2.dev_attr.attr,
1330 &sensor_dev_attr_tolerance3.dev_attr.attr,
1331 &sensor_dev_attr_thermal_cruise3.dev_attr.attr,
1332 &sensor_dev_attr_sf2_point1_fan1.dev_attr.attr,
1333 &sensor_dev_attr_sf2_point2_fan1.dev_attr.attr,
1334 &sensor_dev_attr_sf2_point3_fan1.dev_attr.attr,
1335 &sensor_dev_attr_sf2_point4_fan1.dev_attr.attr,
1336 &sensor_dev_attr_sf2_point1_fan2.dev_attr.attr,
1337 &sensor_dev_attr_sf2_point2_fan2.dev_attr.attr,
1338 &sensor_dev_attr_sf2_point3_fan2.dev_attr.attr,
1339 &sensor_dev_attr_sf2_point4_fan2.dev_attr.attr,
1340 &sensor_dev_attr_sf2_point1_fan3.dev_attr.attr,
1341 &sensor_dev_attr_sf2_point2_fan3.dev_attr.attr,
1342 &sensor_dev_attr_sf2_point3_fan3.dev_attr.attr,
1343 &sensor_dev_attr_sf2_point4_fan3.dev_attr.attr,
1344 &sensor_dev_attr_sf2_level1_fan1.dev_attr.attr,
1345 &sensor_dev_attr_sf2_level2_fan1.dev_attr.attr,
1346 &sensor_dev_attr_sf2_level3_fan1.dev_attr.attr,
1347 &sensor_dev_attr_sf2_level1_fan2.dev_attr.attr,
1348 &sensor_dev_attr_sf2_level2_fan2.dev_attr.attr,
1349 &sensor_dev_attr_sf2_level3_fan2.dev_attr.attr,
1350 &sensor_dev_attr_sf2_level1_fan3.dev_attr.attr,
1351 &sensor_dev_attr_sf2_level2_fan3.dev_attr.attr,
1352 &sensor_dev_attr_sf2_level3_fan3.dev_attr.attr,
1353 &sensor_dev_attr_fan1_input.dev_attr.attr,
1354 &sensor_dev_attr_fan1_min.dev_attr.attr,
1355 &sensor_dev_attr_fan1_div.dev_attr.attr,
1356 &sensor_dev_attr_fan1_alarm.dev_attr.attr,
1357 &sensor_dev_attr_fan2_input.dev_attr.attr,
1358 &sensor_dev_attr_fan2_min.dev_attr.attr,
1359 &sensor_dev_attr_fan2_div.dev_attr.attr,
1360 &sensor_dev_attr_fan2_alarm.dev_attr.attr,
1361 &sensor_dev_attr_fan3_input.dev_attr.attr,
1362 &sensor_dev_attr_fan3_min.dev_attr.attr,
1363 &sensor_dev_attr_fan3_div.dev_attr.attr,
1364 &sensor_dev_attr_fan3_alarm.dev_attr.attr,
1365 NULL
1366};
1367
1368static const struct attribute_group w83792d_group = {
1369 .attrs = w83792d_attributes,
1370};
1371
1372/* Return 0 if detection is successful, -ENODEV otherwise */
1373static int
1374w83792d_detect(struct i2c_client *client, struct i2c_board_info *info)
1375{
1376 struct i2c_adapter *adapter = client->adapter;
1377 int val1, val2;
1378 unsigned short address = client->addr;
1379
1380 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
1381 return -ENODEV;
1382
1383 if (w83792d_read_value(client, W83792D_REG_CONFIG) & 0x80)
1384 return -ENODEV;
1385
1386 val1 = w83792d_read_value(client, W83792D_REG_BANK);
1387 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN);
1388 /* Check for Winbond ID if in bank 0 */
1389 if (!(val1 & 0x07)) { /* is Bank0 */
1390 if ((!(val1 & 0x80) && val2 != 0xa3) ||
1391 ((val1 & 0x80) && val2 != 0x5c))
1392 return -ENODEV;
1393 }
1394 /*
1395 * If Winbond chip, address of chip and W83792D_REG_I2C_ADDR
1396 * should match
1397 */
1398 if (w83792d_read_value(client, W83792D_REG_I2C_ADDR) != address)
1399 return -ENODEV;
1400
1401 /* Put it now into bank 0 and Vendor ID High Byte */
1402 w83792d_write_value(client,
1403 W83792D_REG_BANK,
1404 (w83792d_read_value(client,
1405 W83792D_REG_BANK) & 0x78) | 0x80);
1406
1407 /* Determine the chip type. */
1408 val1 = w83792d_read_value(client, W83792D_REG_WCHIPID);
1409 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN);
1410 if (val1 != 0x7a || val2 != 0x5c)
1411 return -ENODEV;
1412
1413 strlcpy(info->type, "w83792d", I2C_NAME_SIZE);
1414
1415 return 0;
1416}
1417
1418static int
1419w83792d_probe(struct i2c_client *client, const struct i2c_device_id *id)
1420{
1421 struct w83792d_data *data;
1422 struct device *dev = &client->dev;
1423 int i, val1, err;
1424
1425 data = kzalloc(sizeof(struct w83792d_data), GFP_KERNEL);
1426 if (!data) {
1427 err = -ENOMEM;
1428 goto ERROR0;
1429 }
1430
1431 i2c_set_clientdata(client, data);
1432 data->valid = 0;
1433 mutex_init(&data->update_lock);
1434
1435 err = w83792d_detect_subclients(client);
1436 if (err)
1437 goto ERROR1;
1438
1439 /* Initialize the chip */
1440 w83792d_init_client(client);
1441
1442 /* A few vars need to be filled upon startup */
1443 for (i = 0; i < 7; i++) {
1444 data->fan_min[i] = w83792d_read_value(client,
1445 W83792D_REG_FAN_MIN[i]);
1446 }
1447
1448 /* Register sysfs hooks */
1449 err = sysfs_create_group(&dev->kobj, &w83792d_group);
1450 if (err)
1451 goto ERROR3;
1452
1453 /*
1454 * Read GPIO enable register to check if pins for fan 4,5 are used as
1455 * GPIO
1456 */
1457 val1 = w83792d_read_value(client, W83792D_REG_GPIO_EN);
1458
1459 if (!(val1 & 0x40)) {
1460 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[0]);
1461 if (err)
1462 goto exit_remove_files;
1463 }
1464
1465 if (!(val1 & 0x20)) {
1466 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[1]);
1467 if (err)
1468 goto exit_remove_files;
1469 }
1470
1471 val1 = w83792d_read_value(client, W83792D_REG_PIN);
1472 if (val1 & 0x40) {
1473 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[2]);
1474 if (err)
1475 goto exit_remove_files;
1476 }
1477
1478 if (val1 & 0x04) {
1479 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[3]);
1480 if (err)
1481 goto exit_remove_files;
1482 }
1483
1484 data->hwmon_dev = hwmon_device_register(dev);
1485 if (IS_ERR(data->hwmon_dev)) {
1486 err = PTR_ERR(data->hwmon_dev);
1487 goto exit_remove_files;
1488 }
1489
1490 return 0;
1491
1492exit_remove_files:
1493 sysfs_remove_group(&dev->kobj, &w83792d_group);
1494 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++)
1495 sysfs_remove_group(&dev->kobj, &w83792d_group_fan[i]);
1496ERROR3:
1497 if (data->lm75[0] != NULL)
1498 i2c_unregister_device(data->lm75[0]);
1499 if (data->lm75[1] != NULL)
1500 i2c_unregister_device(data->lm75[1]);
1501ERROR1:
1502 kfree(data);
1503ERROR0:
1504 return err;
1505}
1506
1507static int
1508w83792d_remove(struct i2c_client *client)
1509{
1510 struct w83792d_data *data = i2c_get_clientdata(client);
1511 int i;
1512
1513 hwmon_device_unregister(data->hwmon_dev);
1514 sysfs_remove_group(&client->dev.kobj, &w83792d_group);
1515 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++)
1516 sysfs_remove_group(&client->dev.kobj,
1517 &w83792d_group_fan[i]);
1518
1519 if (data->lm75[0] != NULL)
1520 i2c_unregister_device(data->lm75[0]);
1521 if (data->lm75[1] != NULL)
1522 i2c_unregister_device(data->lm75[1]);
1523
1524 kfree(data);
1525 return 0;
1526}
1527
1528static void
1529w83792d_init_client(struct i2c_client *client)
1530{
1531 u8 temp2_cfg, temp3_cfg, vid_in_b;
1532
1533 if (init)
1534 w83792d_write_value(client, W83792D_REG_CONFIG, 0x80);
1535
1536 /*
1537 * Clear the bit6 of W83792D_REG_VID_IN_B(set it into 0):
1538 * W83792D_REG_VID_IN_B bit6 = 0: the high/low limit of
1539 * vin0/vin1 can be modified by user;
1540 * W83792D_REG_VID_IN_B bit6 = 1: the high/low limit of
1541 * vin0/vin1 auto-updated, can NOT be modified by user.
1542 */
1543 vid_in_b = w83792d_read_value(client, W83792D_REG_VID_IN_B);
1544 w83792d_write_value(client, W83792D_REG_VID_IN_B,
1545 vid_in_b & 0xbf);
1546
1547 temp2_cfg = w83792d_read_value(client, W83792D_REG_TEMP2_CONFIG);
1548 temp3_cfg = w83792d_read_value(client, W83792D_REG_TEMP3_CONFIG);
1549 w83792d_write_value(client, W83792D_REG_TEMP2_CONFIG,
1550 temp2_cfg & 0xe6);
1551 w83792d_write_value(client, W83792D_REG_TEMP3_CONFIG,
1552 temp3_cfg & 0xe6);
1553
1554 /* Start monitoring */
1555 w83792d_write_value(client, W83792D_REG_CONFIG,
1556 (w83792d_read_value(client,
1557 W83792D_REG_CONFIG) & 0xf7)
1558 | 0x01);
1559}
1560
1561static struct w83792d_data *w83792d_update_device(struct device *dev)
1562{
1563 struct i2c_client *client = to_i2c_client(dev);
1564 struct w83792d_data *data = i2c_get_clientdata(client);
1565 int i, j;
1566 u8 reg_array_tmp[4], reg_tmp;
1567
1568 mutex_lock(&data->update_lock);
1569
1570 if (time_after
1571 (jiffies - data->last_updated, (unsigned long) (HZ * 3))
1572 || time_before(jiffies, data->last_updated) || !data->valid) {
1573 dev_dbg(dev, "Starting device update\n");
1574
1575 /* Update the voltages measured value and limits */
1576 for (i = 0; i < 9; i++) {
1577 data->in[i] = w83792d_read_value(client,
1578 W83792D_REG_IN[i]);
1579 data->in_max[i] = w83792d_read_value(client,
1580 W83792D_REG_IN_MAX[i]);
1581 data->in_min[i] = w83792d_read_value(client,
1582 W83792D_REG_IN_MIN[i]);
1583 }
1584 data->low_bits = w83792d_read_value(client,
1585 W83792D_REG_LOW_BITS1) +
1586 (w83792d_read_value(client,
1587 W83792D_REG_LOW_BITS2) << 8);
1588 for (i = 0; i < 7; i++) {
1589 /* Update the Fan measured value and limits */
1590 data->fan[i] = w83792d_read_value(client,
1591 W83792D_REG_FAN[i]);
1592 data->fan_min[i] = w83792d_read_value(client,
1593 W83792D_REG_FAN_MIN[i]);
1594 /* Update the PWM/DC Value and PWM/DC flag */
1595 data->pwm[i] = w83792d_read_value(client,
1596 W83792D_REG_PWM[i]);
1597 }
1598
1599 reg_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG);
1600 data->pwmenable[0] = reg_tmp & 0x03;
1601 data->pwmenable[1] = (reg_tmp>>2) & 0x03;
1602 data->pwmenable[2] = (reg_tmp>>4) & 0x03;
1603
1604 for (i = 0; i < 3; i++) {
1605 data->temp1[i] = w83792d_read_value(client,
1606 W83792D_REG_TEMP1[i]);
1607 }
1608 for (i = 0; i < 2; i++) {
1609 for (j = 0; j < 6; j++) {
1610 data->temp_add[i][j] = w83792d_read_value(
1611 client, W83792D_REG_TEMP_ADD[i][j]);
1612 }
1613 }
1614
1615 /* Update the Fan Divisor */
1616 for (i = 0; i < 4; i++) {
1617 reg_array_tmp[i] = w83792d_read_value(client,
1618 W83792D_REG_FAN_DIV[i]);
1619 }
1620 data->fan_div[0] = reg_array_tmp[0] & 0x07;
1621 data->fan_div[1] = (reg_array_tmp[0] >> 4) & 0x07;
1622 data->fan_div[2] = reg_array_tmp[1] & 0x07;
1623 data->fan_div[3] = (reg_array_tmp[1] >> 4) & 0x07;
1624 data->fan_div[4] = reg_array_tmp[2] & 0x07;
1625 data->fan_div[5] = (reg_array_tmp[2] >> 4) & 0x07;
1626 data->fan_div[6] = reg_array_tmp[3] & 0x07;
1627
1628 /* Update the realtime status */
1629 data->alarms = w83792d_read_value(client, W83792D_REG_ALARM1) +
1630 (w83792d_read_value(client, W83792D_REG_ALARM2) << 8) +
1631 (w83792d_read_value(client, W83792D_REG_ALARM3) << 16);
1632
1633 /* Update CaseOpen status and it's CLR_CHS. */
1634 data->chassis = (w83792d_read_value(client,
1635 W83792D_REG_CHASSIS) >> 5) & 0x01;
1636 data->chassis_clear = (w83792d_read_value(client,
1637 W83792D_REG_CHASSIS_CLR) >> 7) & 0x01;
1638
1639 /* Update Thermal Cruise/Smart Fan I target value */
1640 for (i = 0; i < 3; i++) {
1641 data->thermal_cruise[i] =
1642 w83792d_read_value(client,
1643 W83792D_REG_THERMAL[i]) & 0x7f;
1644 }
1645
1646 /* Update Smart Fan I/II tolerance */
1647 reg_tmp = w83792d_read_value(client, W83792D_REG_TOLERANCE[0]);
1648 data->tolerance[0] = reg_tmp & 0x0f;
1649 data->tolerance[1] = (reg_tmp >> 4) & 0x0f;
1650 data->tolerance[2] = w83792d_read_value(client,
1651 W83792D_REG_TOLERANCE[2]) & 0x0f;
1652
1653 /* Update Smart Fan II temperature points */
1654 for (i = 0; i < 3; i++) {
1655 for (j = 0; j < 4; j++) {
1656 data->sf2_points[i][j]
1657 = w83792d_read_value(client,
1658 W83792D_REG_POINTS[i][j]) & 0x7f;
1659 }
1660 }
1661
1662 /* Update Smart Fan II duty cycle levels */
1663 for (i = 0; i < 3; i++) {
1664 reg_tmp = w83792d_read_value(client,
1665 W83792D_REG_LEVELS[i][0]);
1666 data->sf2_levels[i][0] = reg_tmp & 0x0f;
1667 data->sf2_levels[i][1] = (reg_tmp >> 4) & 0x0f;
1668 reg_tmp = w83792d_read_value(client,
1669 W83792D_REG_LEVELS[i][2]);
1670 data->sf2_levels[i][2] = (reg_tmp >> 4) & 0x0f;
1671 data->sf2_levels[i][3] = reg_tmp & 0x0f;
1672 }
1673
1674 data->last_updated = jiffies;
1675 data->valid = 1;
1676 }
1677
1678 mutex_unlock(&data->update_lock);
1679
1680#ifdef DEBUG
1681 w83792d_print_debug(data, dev);
1682#endif
1683
1684 return data;
1685}
1686
1687#ifdef DEBUG
1688static void w83792d_print_debug(struct w83792d_data *data, struct device *dev)
1689{
1690 int i = 0, j = 0;
1691 dev_dbg(dev, "==========The following is the debug message...========\n");
1692 dev_dbg(dev, "9 set of Voltages: =====>\n");
1693 for (i = 0; i < 9; i++) {
1694 dev_dbg(dev, "vin[%d] is: 0x%x\n", i, data->in[i]);
1695 dev_dbg(dev, "vin[%d] max is: 0x%x\n", i, data->in_max[i]);
1696 dev_dbg(dev, "vin[%d] min is: 0x%x\n", i, data->in_min[i]);
1697 }
1698 dev_dbg(dev, "Low Bit1 is: 0x%x\n", data->low_bits & 0xff);
1699 dev_dbg(dev, "Low Bit2 is: 0x%x\n", data->low_bits >> 8);
1700 dev_dbg(dev, "7 set of Fan Counts and Duty Cycles: =====>\n");
1701 for (i = 0; i < 7; i++) {
1702 dev_dbg(dev, "fan[%d] is: 0x%x\n", i, data->fan[i]);
1703 dev_dbg(dev, "fan[%d] min is: 0x%x\n", i, data->fan_min[i]);
1704 dev_dbg(dev, "pwm[%d] is: 0x%x\n", i, data->pwm[i]);
1705 }
1706 dev_dbg(dev, "3 set of Temperatures: =====>\n");
1707 for (i = 0; i < 3; i++)
1708 dev_dbg(dev, "temp1[%d] is: 0x%x\n", i, data->temp1[i]);
1709
1710 for (i = 0; i < 2; i++) {
1711 for (j = 0; j < 6; j++) {
1712 dev_dbg(dev, "temp_add[%d][%d] is: 0x%x\n", i, j,
1713 data->temp_add[i][j]);
1714 }
1715 }
1716
1717 for (i = 0; i < 7; i++)
1718 dev_dbg(dev, "fan_div[%d] is: 0x%x\n", i, data->fan_div[i]);
1719
1720 dev_dbg(dev, "==========End of the debug message...================\n");
1721 dev_dbg(dev, "\n");
1722}
1723#endif
1724
1725module_i2c_driver(w83792d_driver);
1726
1727MODULE_AUTHOR("Chunhao Huang @ Winbond <DZShen@Winbond.com.tw>");
1728MODULE_DESCRIPTION("W83792AD/D driver for linux-2.6");
1729MODULE_LICENSE("GPL");