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UBUNTU: upstream stable to v4.19.98, v5.4.14
[mirror_ubuntu-eoan-kernel.git] / drivers / hwmon / w83792d.c
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 */
37 static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f,
38 I2C_CLIENT_END };
39
40 /* Insmod parameters */
41
42 static unsigned short force_subclients[4];
43 module_param_array(force_subclients, short, NULL, 0);
44 MODULE_PARM_DESC(force_subclients,
45 "List of subclient addresses: {bus, clientaddr, subclientaddr1, subclientaddr2}");
46
47 static bool init;
48 module_param(init, bool, 0);
49 MODULE_PARM_DESC(init, "Set to one to force chip initialization");
50
51 /* The W83792D registers */
52 static 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 */
65 static 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 };
76 static 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 };
87 static 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 };
96 static 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 */
106 static 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 };
112 static 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
125 static 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
131 static 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
146 static 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
152 static 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
158 static 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
173 static 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
220 static inline u8
221 FAN_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
247 static inline u8
248 DIV_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
260 struct 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
289 static int w83792d_probe(struct i2c_client *client,
290 const struct i2c_device_id *id);
291 static int w83792d_detect(struct i2c_client *client,
292 struct i2c_board_info *info);
293 static int w83792d_remove(struct i2c_client *client);
294 static struct w83792d_data *w83792d_update_device(struct device *dev);
295
296 #ifdef DEBUG
297 static void w83792d_print_debug(struct w83792d_data *data, struct device *dev);
298 #endif
299
300 static void w83792d_init_client(struct i2c_client *client);
301
302 static const struct i2c_device_id w83792d_id[] = {
303 { "w83792d", 0 },
304 { }
305 };
306 MODULE_DEVICE_TABLE(i2c, w83792d_id);
307
308 static 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
320 static 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 */
331 static inline int w83792d_read_value(struct i2c_client *client, u8 reg)
332 {
333 return i2c_smbus_read_byte_data(client, reg);
334 }
335
336 static inline int
337 w83792d_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 */
343 static 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) \
354 static 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
365 show_in_reg(in_min);
366 show_in_reg(in_max);
367
368 #define store_in_reg(REG, reg) \
369 static 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 }
390 store_in_reg(MIN, min);
391 store_in_reg(MAX, max);
392
393 #define show_fan_reg(reg) \
394 static 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
405 show_fan_reg(fan);
406 show_fan_reg(fan_min);
407
408 static ssize_t
409 store_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
432 static ssize_t
433 show_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 */
448 static ssize_t
449 store_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
491 static 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
500 static 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
525 static 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
538 static 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 */
567 static ssize_t
568 alarms_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
574 static 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
583 static ssize_t
584 show_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
593 static ssize_t
594 show_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
617 static ssize_t
618 store_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
642 static ssize_t
643 store_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
684 static ssize_t
685 show_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
694 static ssize_t
695 store_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
724 static ssize_t
725 intrusion0_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
732 static ssize_t
733 intrusion0_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 */
754 static ssize_t
755 show_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
764 static ssize_t
765 store_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 */
794 static ssize_t
795 show_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
804 static ssize_t
805 store_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 */
836 static ssize_t
837 show_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
848 static ssize_t
849 store_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
877 static ssize_t
878 show_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
890 static ssize_t
891 store_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
924 static int
925 w83792d_detect_subclients(struct i2c_client *new_client)
926 {
927 int i, id, err;
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 err = -ENODEV;
942 goto ERROR_SC_0;
943 }
944 }
945 w83792d_write_value(new_client, W83792D_REG_I2C_SUBADDR,
946 (force_subclients[2] & 0x07) |
947 ((force_subclients[3] & 0x07) << 4));
948 }
949
950 val = w83792d_read_value(new_client, W83792D_REG_I2C_SUBADDR);
951 if (!(val & 0x08))
952 data->lm75[0] = i2c_new_dummy(adapter, 0x48 + (val & 0x7));
953 if (!(val & 0x80)) {
954 if ((data->lm75[0] != NULL) &&
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 err = -ENODEV;
960 goto ERROR_SC_1;
961 }
962 data->lm75[1] = i2c_new_dummy(adapter,
963 0x48 + ((val >> 4) & 0x7));
964 }
965
966 return 0;
967
968 /* Undo inits in case of errors */
969
970 ERROR_SC_1:
971 i2c_unregister_device(data->lm75[0]);
972 ERROR_SC_0:
973 return err;
974 }
975
976 static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0);
977 static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1);
978 static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2);
979 static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3);
980 static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 4);
981 static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 5);
982 static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 6);
983 static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 7);
984 static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_in, NULL, 8);
985 static SENSOR_DEVICE_ATTR(in0_min, S_IWUSR | S_IRUGO,
986 show_in_min, store_in_min, 0);
987 static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO,
988 show_in_min, store_in_min, 1);
989 static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO,
990 show_in_min, store_in_min, 2);
991 static SENSOR_DEVICE_ATTR(in3_min, S_IWUSR | S_IRUGO,
992 show_in_min, store_in_min, 3);
993 static SENSOR_DEVICE_ATTR(in4_min, S_IWUSR | S_IRUGO,
994 show_in_min, store_in_min, 4);
995 static SENSOR_DEVICE_ATTR(in5_min, S_IWUSR | S_IRUGO,
996 show_in_min, store_in_min, 5);
997 static SENSOR_DEVICE_ATTR(in6_min, S_IWUSR | S_IRUGO,
998 show_in_min, store_in_min, 6);
999 static SENSOR_DEVICE_ATTR(in7_min, S_IWUSR | S_IRUGO,
1000 show_in_min, store_in_min, 7);
1001 static SENSOR_DEVICE_ATTR(in8_min, S_IWUSR | S_IRUGO,
1002 show_in_min, store_in_min, 8);
1003 static SENSOR_DEVICE_ATTR(in0_max, S_IWUSR | S_IRUGO,
1004 show_in_max, store_in_max, 0);
1005 static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO,
1006 show_in_max, store_in_max, 1);
1007 static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO,
1008 show_in_max, store_in_max, 2);
1009 static SENSOR_DEVICE_ATTR(in3_max, S_IWUSR | S_IRUGO,
1010 show_in_max, store_in_max, 3);
1011 static SENSOR_DEVICE_ATTR(in4_max, S_IWUSR | S_IRUGO,
1012 show_in_max, store_in_max, 4);
1013 static SENSOR_DEVICE_ATTR(in5_max, S_IWUSR | S_IRUGO,
1014 show_in_max, store_in_max, 5);
1015 static SENSOR_DEVICE_ATTR(in6_max, S_IWUSR | S_IRUGO,
1016 show_in_max, store_in_max, 6);
1017 static SENSOR_DEVICE_ATTR(in7_max, S_IWUSR | S_IRUGO,
1018 show_in_max, store_in_max, 7);
1019 static SENSOR_DEVICE_ATTR(in8_max, S_IWUSR | S_IRUGO,
1020 show_in_max, store_in_max, 8);
1021 static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp1, NULL, 0, 0);
1022 static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp23, NULL, 0, 0);
1023 static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp23, NULL, 1, 0);
1024 static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR,
1025 show_temp1, store_temp1, 0, 1);
1026 static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp23,
1027 store_temp23, 0, 2);
1028 static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp23,
1029 store_temp23, 1, 2);
1030 static SENSOR_DEVICE_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR,
1031 show_temp1, store_temp1, 0, 2);
1032 static SENSOR_DEVICE_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR,
1033 show_temp23, store_temp23, 0, 4);
1034 static SENSOR_DEVICE_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR,
1035 show_temp23, store_temp23, 1, 4);
1036 static DEVICE_ATTR_RO(alarms);
1037 static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
1038 static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
1039 static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 2);
1040 static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 3);
1041 static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 4);
1042 static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 5);
1043 static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 6);
1044 static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 7);
1045 static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 8);
1046 static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 9);
1047 static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 10);
1048 static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 11);
1049 static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 12);
1050 static SENSOR_DEVICE_ATTR(fan7_alarm, S_IRUGO, show_alarm, NULL, 15);
1051 static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 19);
1052 static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 20);
1053 static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 21);
1054 static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 22);
1055 static SENSOR_DEVICE_ATTR(fan6_alarm, S_IRUGO, show_alarm, NULL, 23);
1056 static DEVICE_ATTR_RW(intrusion0_alarm);
1057 static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0);
1058 static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1);
1059 static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2);
1060 static SENSOR_DEVICE_ATTR(pwm4, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 3);
1061 static SENSOR_DEVICE_ATTR(pwm5, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 4);
1062 static SENSOR_DEVICE_ATTR(pwm6, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 5);
1063 static SENSOR_DEVICE_ATTR(pwm7, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 6);
1064 static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO,
1065 show_pwmenable, store_pwmenable, 1);
1066 static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO,
1067 show_pwmenable, store_pwmenable, 2);
1068 static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO,
1069 show_pwmenable, store_pwmenable, 3);
1070 static SENSOR_DEVICE_ATTR(pwm1_mode, S_IWUSR | S_IRUGO,
1071 show_pwm_mode, store_pwm_mode, 0);
1072 static SENSOR_DEVICE_ATTR(pwm2_mode, S_IWUSR | S_IRUGO,
1073 show_pwm_mode, store_pwm_mode, 1);
1074 static SENSOR_DEVICE_ATTR(pwm3_mode, S_IWUSR | S_IRUGO,
1075 show_pwm_mode, store_pwm_mode, 2);
1076 static SENSOR_DEVICE_ATTR(pwm4_mode, S_IWUSR | S_IRUGO,
1077 show_pwm_mode, store_pwm_mode, 3);
1078 static SENSOR_DEVICE_ATTR(pwm5_mode, S_IWUSR | S_IRUGO,
1079 show_pwm_mode, store_pwm_mode, 4);
1080 static SENSOR_DEVICE_ATTR(pwm6_mode, S_IWUSR | S_IRUGO,
1081 show_pwm_mode, store_pwm_mode, 5);
1082 static SENSOR_DEVICE_ATTR(pwm7_mode, S_IWUSR | S_IRUGO,
1083 show_pwm_mode, store_pwm_mode, 6);
1084 static SENSOR_DEVICE_ATTR(tolerance1, S_IWUSR | S_IRUGO,
1085 show_tolerance, store_tolerance, 1);
1086 static SENSOR_DEVICE_ATTR(tolerance2, S_IWUSR | S_IRUGO,
1087 show_tolerance, store_tolerance, 2);
1088 static SENSOR_DEVICE_ATTR(tolerance3, S_IWUSR | S_IRUGO,
1089 show_tolerance, store_tolerance, 3);
1090 static SENSOR_DEVICE_ATTR(thermal_cruise1, S_IWUSR | S_IRUGO,
1091 show_thermal_cruise, store_thermal_cruise, 1);
1092 static SENSOR_DEVICE_ATTR(thermal_cruise2, S_IWUSR | S_IRUGO,
1093 show_thermal_cruise, store_thermal_cruise, 2);
1094 static SENSOR_DEVICE_ATTR(thermal_cruise3, S_IWUSR | S_IRUGO,
1095 show_thermal_cruise, store_thermal_cruise, 3);
1096 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan1, S_IRUGO | S_IWUSR,
1097 show_sf2_point, store_sf2_point, 1, 1);
1098 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan1, S_IRUGO | S_IWUSR,
1099 show_sf2_point, store_sf2_point, 2, 1);
1100 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan1, S_IRUGO | S_IWUSR,
1101 show_sf2_point, store_sf2_point, 3, 1);
1102 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan1, S_IRUGO | S_IWUSR,
1103 show_sf2_point, store_sf2_point, 4, 1);
1104 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan2, S_IRUGO | S_IWUSR,
1105 show_sf2_point, store_sf2_point, 1, 2);
1106 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan2, S_IRUGO | S_IWUSR,
1107 show_sf2_point, store_sf2_point, 2, 2);
1108 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan2, S_IRUGO | S_IWUSR,
1109 show_sf2_point, store_sf2_point, 3, 2);
1110 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan2, S_IRUGO | S_IWUSR,
1111 show_sf2_point, store_sf2_point, 4, 2);
1112 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan3, S_IRUGO | S_IWUSR,
1113 show_sf2_point, store_sf2_point, 1, 3);
1114 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan3, S_IRUGO | S_IWUSR,
1115 show_sf2_point, store_sf2_point, 2, 3);
1116 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan3, S_IRUGO | S_IWUSR,
1117 show_sf2_point, store_sf2_point, 3, 3);
1118 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan3, S_IRUGO | S_IWUSR,
1119 show_sf2_point, store_sf2_point, 4, 3);
1120 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan1, S_IRUGO | S_IWUSR,
1121 show_sf2_level, store_sf2_level, 1, 1);
1122 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan1, S_IRUGO | S_IWUSR,
1123 show_sf2_level, store_sf2_level, 2, 1);
1124 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan1, S_IRUGO | S_IWUSR,
1125 show_sf2_level, store_sf2_level, 3, 1);
1126 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan2, S_IRUGO | S_IWUSR,
1127 show_sf2_level, store_sf2_level, 1, 2);
1128 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan2, S_IRUGO | S_IWUSR,
1129 show_sf2_level, store_sf2_level, 2, 2);
1130 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan2, S_IRUGO | S_IWUSR,
1131 show_sf2_level, store_sf2_level, 3, 2);
1132 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan3, S_IRUGO | S_IWUSR,
1133 show_sf2_level, store_sf2_level, 1, 3);
1134 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan3, S_IRUGO | S_IWUSR,
1135 show_sf2_level, store_sf2_level, 2, 3);
1136 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan3, S_IRUGO | S_IWUSR,
1137 show_sf2_level, store_sf2_level, 3, 3);
1138 static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 1);
1139 static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 2);
1140 static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 3);
1141 static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 4);
1142 static SENSOR_DEVICE_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 5);
1143 static SENSOR_DEVICE_ATTR(fan6_input, S_IRUGO, show_fan, NULL, 6);
1144 static SENSOR_DEVICE_ATTR(fan7_input, S_IRUGO, show_fan, NULL, 7);
1145 static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO,
1146 show_fan_min, store_fan_min, 1);
1147 static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO,
1148 show_fan_min, store_fan_min, 2);
1149 static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO,
1150 show_fan_min, store_fan_min, 3);
1151 static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO,
1152 show_fan_min, store_fan_min, 4);
1153 static SENSOR_DEVICE_ATTR(fan5_min, S_IWUSR | S_IRUGO,
1154 show_fan_min, store_fan_min, 5);
1155 static SENSOR_DEVICE_ATTR(fan6_min, S_IWUSR | S_IRUGO,
1156 show_fan_min, store_fan_min, 6);
1157 static SENSOR_DEVICE_ATTR(fan7_min, S_IWUSR | S_IRUGO,
1158 show_fan_min, store_fan_min, 7);
1159 static SENSOR_DEVICE_ATTR(fan1_div, S_IWUSR | S_IRUGO,
1160 show_fan_div, store_fan_div, 1);
1161 static SENSOR_DEVICE_ATTR(fan2_div, S_IWUSR | S_IRUGO,
1162 show_fan_div, store_fan_div, 2);
1163 static SENSOR_DEVICE_ATTR(fan3_div, S_IWUSR | S_IRUGO,
1164 show_fan_div, store_fan_div, 3);
1165 static SENSOR_DEVICE_ATTR(fan4_div, S_IWUSR | S_IRUGO,
1166 show_fan_div, store_fan_div, 4);
1167 static SENSOR_DEVICE_ATTR(fan5_div, S_IWUSR | S_IRUGO,
1168 show_fan_div, store_fan_div, 5);
1169 static SENSOR_DEVICE_ATTR(fan6_div, S_IWUSR | S_IRUGO,
1170 show_fan_div, store_fan_div, 6);
1171 static SENSOR_DEVICE_ATTR(fan7_div, S_IWUSR | S_IRUGO,
1172 show_fan_div, store_fan_div, 7);
1173
1174 static struct attribute *w83792d_attributes_fan[4][7] = {
1175 {
1176 &sensor_dev_attr_fan4_input.dev_attr.attr,
1177 &sensor_dev_attr_fan4_min.dev_attr.attr,
1178 &sensor_dev_attr_fan4_div.dev_attr.attr,
1179 &sensor_dev_attr_fan4_alarm.dev_attr.attr,
1180 &sensor_dev_attr_pwm4.dev_attr.attr,
1181 &sensor_dev_attr_pwm4_mode.dev_attr.attr,
1182 NULL
1183 }, {
1184 &sensor_dev_attr_fan5_input.dev_attr.attr,
1185 &sensor_dev_attr_fan5_min.dev_attr.attr,
1186 &sensor_dev_attr_fan5_div.dev_attr.attr,
1187 &sensor_dev_attr_fan5_alarm.dev_attr.attr,
1188 &sensor_dev_attr_pwm5.dev_attr.attr,
1189 &sensor_dev_attr_pwm5_mode.dev_attr.attr,
1190 NULL
1191 }, {
1192 &sensor_dev_attr_fan6_input.dev_attr.attr,
1193 &sensor_dev_attr_fan6_min.dev_attr.attr,
1194 &sensor_dev_attr_fan6_div.dev_attr.attr,
1195 &sensor_dev_attr_fan6_alarm.dev_attr.attr,
1196 &sensor_dev_attr_pwm6.dev_attr.attr,
1197 &sensor_dev_attr_pwm6_mode.dev_attr.attr,
1198 NULL
1199 }, {
1200 &sensor_dev_attr_fan7_input.dev_attr.attr,
1201 &sensor_dev_attr_fan7_min.dev_attr.attr,
1202 &sensor_dev_attr_fan7_div.dev_attr.attr,
1203 &sensor_dev_attr_fan7_alarm.dev_attr.attr,
1204 &sensor_dev_attr_pwm7.dev_attr.attr,
1205 &sensor_dev_attr_pwm7_mode.dev_attr.attr,
1206 NULL
1207 }
1208 };
1209
1210 static const struct attribute_group w83792d_group_fan[4] = {
1211 { .attrs = w83792d_attributes_fan[0] },
1212 { .attrs = w83792d_attributes_fan[1] },
1213 { .attrs = w83792d_attributes_fan[2] },
1214 { .attrs = w83792d_attributes_fan[3] },
1215 };
1216
1217 static struct attribute *w83792d_attributes[] = {
1218 &sensor_dev_attr_in0_input.dev_attr.attr,
1219 &sensor_dev_attr_in0_max.dev_attr.attr,
1220 &sensor_dev_attr_in0_min.dev_attr.attr,
1221 &sensor_dev_attr_in1_input.dev_attr.attr,
1222 &sensor_dev_attr_in1_max.dev_attr.attr,
1223 &sensor_dev_attr_in1_min.dev_attr.attr,
1224 &sensor_dev_attr_in2_input.dev_attr.attr,
1225 &sensor_dev_attr_in2_max.dev_attr.attr,
1226 &sensor_dev_attr_in2_min.dev_attr.attr,
1227 &sensor_dev_attr_in3_input.dev_attr.attr,
1228 &sensor_dev_attr_in3_max.dev_attr.attr,
1229 &sensor_dev_attr_in3_min.dev_attr.attr,
1230 &sensor_dev_attr_in4_input.dev_attr.attr,
1231 &sensor_dev_attr_in4_max.dev_attr.attr,
1232 &sensor_dev_attr_in4_min.dev_attr.attr,
1233 &sensor_dev_attr_in5_input.dev_attr.attr,
1234 &sensor_dev_attr_in5_max.dev_attr.attr,
1235 &sensor_dev_attr_in5_min.dev_attr.attr,
1236 &sensor_dev_attr_in6_input.dev_attr.attr,
1237 &sensor_dev_attr_in6_max.dev_attr.attr,
1238 &sensor_dev_attr_in6_min.dev_attr.attr,
1239 &sensor_dev_attr_in7_input.dev_attr.attr,
1240 &sensor_dev_attr_in7_max.dev_attr.attr,
1241 &sensor_dev_attr_in7_min.dev_attr.attr,
1242 &sensor_dev_attr_in8_input.dev_attr.attr,
1243 &sensor_dev_attr_in8_max.dev_attr.attr,
1244 &sensor_dev_attr_in8_min.dev_attr.attr,
1245 &sensor_dev_attr_in0_alarm.dev_attr.attr,
1246 &sensor_dev_attr_in1_alarm.dev_attr.attr,
1247 &sensor_dev_attr_in2_alarm.dev_attr.attr,
1248 &sensor_dev_attr_in3_alarm.dev_attr.attr,
1249 &sensor_dev_attr_in4_alarm.dev_attr.attr,
1250 &sensor_dev_attr_in5_alarm.dev_attr.attr,
1251 &sensor_dev_attr_in6_alarm.dev_attr.attr,
1252 &sensor_dev_attr_in7_alarm.dev_attr.attr,
1253 &sensor_dev_attr_in8_alarm.dev_attr.attr,
1254 &sensor_dev_attr_temp1_input.dev_attr.attr,
1255 &sensor_dev_attr_temp1_max.dev_attr.attr,
1256 &sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
1257 &sensor_dev_attr_temp2_input.dev_attr.attr,
1258 &sensor_dev_attr_temp2_max.dev_attr.attr,
1259 &sensor_dev_attr_temp2_max_hyst.dev_attr.attr,
1260 &sensor_dev_attr_temp3_input.dev_attr.attr,
1261 &sensor_dev_attr_temp3_max.dev_attr.attr,
1262 &sensor_dev_attr_temp3_max_hyst.dev_attr.attr,
1263 &sensor_dev_attr_temp1_alarm.dev_attr.attr,
1264 &sensor_dev_attr_temp2_alarm.dev_attr.attr,
1265 &sensor_dev_attr_temp3_alarm.dev_attr.attr,
1266 &sensor_dev_attr_pwm1.dev_attr.attr,
1267 &sensor_dev_attr_pwm1_mode.dev_attr.attr,
1268 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
1269 &sensor_dev_attr_pwm2.dev_attr.attr,
1270 &sensor_dev_attr_pwm2_mode.dev_attr.attr,
1271 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
1272 &sensor_dev_attr_pwm3.dev_attr.attr,
1273 &sensor_dev_attr_pwm3_mode.dev_attr.attr,
1274 &sensor_dev_attr_pwm3_enable.dev_attr.attr,
1275 &dev_attr_alarms.attr,
1276 &dev_attr_intrusion0_alarm.attr,
1277 &sensor_dev_attr_tolerance1.dev_attr.attr,
1278 &sensor_dev_attr_thermal_cruise1.dev_attr.attr,
1279 &sensor_dev_attr_tolerance2.dev_attr.attr,
1280 &sensor_dev_attr_thermal_cruise2.dev_attr.attr,
1281 &sensor_dev_attr_tolerance3.dev_attr.attr,
1282 &sensor_dev_attr_thermal_cruise3.dev_attr.attr,
1283 &sensor_dev_attr_sf2_point1_fan1.dev_attr.attr,
1284 &sensor_dev_attr_sf2_point2_fan1.dev_attr.attr,
1285 &sensor_dev_attr_sf2_point3_fan1.dev_attr.attr,
1286 &sensor_dev_attr_sf2_point4_fan1.dev_attr.attr,
1287 &sensor_dev_attr_sf2_point1_fan2.dev_attr.attr,
1288 &sensor_dev_attr_sf2_point2_fan2.dev_attr.attr,
1289 &sensor_dev_attr_sf2_point3_fan2.dev_attr.attr,
1290 &sensor_dev_attr_sf2_point4_fan2.dev_attr.attr,
1291 &sensor_dev_attr_sf2_point1_fan3.dev_attr.attr,
1292 &sensor_dev_attr_sf2_point2_fan3.dev_attr.attr,
1293 &sensor_dev_attr_sf2_point3_fan3.dev_attr.attr,
1294 &sensor_dev_attr_sf2_point4_fan3.dev_attr.attr,
1295 &sensor_dev_attr_sf2_level1_fan1.dev_attr.attr,
1296 &sensor_dev_attr_sf2_level2_fan1.dev_attr.attr,
1297 &sensor_dev_attr_sf2_level3_fan1.dev_attr.attr,
1298 &sensor_dev_attr_sf2_level1_fan2.dev_attr.attr,
1299 &sensor_dev_attr_sf2_level2_fan2.dev_attr.attr,
1300 &sensor_dev_attr_sf2_level3_fan2.dev_attr.attr,
1301 &sensor_dev_attr_sf2_level1_fan3.dev_attr.attr,
1302 &sensor_dev_attr_sf2_level2_fan3.dev_attr.attr,
1303 &sensor_dev_attr_sf2_level3_fan3.dev_attr.attr,
1304 &sensor_dev_attr_fan1_input.dev_attr.attr,
1305 &sensor_dev_attr_fan1_min.dev_attr.attr,
1306 &sensor_dev_attr_fan1_div.dev_attr.attr,
1307 &sensor_dev_attr_fan1_alarm.dev_attr.attr,
1308 &sensor_dev_attr_fan2_input.dev_attr.attr,
1309 &sensor_dev_attr_fan2_min.dev_attr.attr,
1310 &sensor_dev_attr_fan2_div.dev_attr.attr,
1311 &sensor_dev_attr_fan2_alarm.dev_attr.attr,
1312 &sensor_dev_attr_fan3_input.dev_attr.attr,
1313 &sensor_dev_attr_fan3_min.dev_attr.attr,
1314 &sensor_dev_attr_fan3_div.dev_attr.attr,
1315 &sensor_dev_attr_fan3_alarm.dev_attr.attr,
1316 NULL
1317 };
1318
1319 static const struct attribute_group w83792d_group = {
1320 .attrs = w83792d_attributes,
1321 };
1322
1323 /* Return 0 if detection is successful, -ENODEV otherwise */
1324 static int
1325 w83792d_detect(struct i2c_client *client, struct i2c_board_info *info)
1326 {
1327 struct i2c_adapter *adapter = client->adapter;
1328 int val1, val2;
1329 unsigned short address = client->addr;
1330
1331 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
1332 return -ENODEV;
1333
1334 if (w83792d_read_value(client, W83792D_REG_CONFIG) & 0x80)
1335 return -ENODEV;
1336
1337 val1 = w83792d_read_value(client, W83792D_REG_BANK);
1338 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN);
1339 /* Check for Winbond ID if in bank 0 */
1340 if (!(val1 & 0x07)) { /* is Bank0 */
1341 if ((!(val1 & 0x80) && val2 != 0xa3) ||
1342 ((val1 & 0x80) && val2 != 0x5c))
1343 return -ENODEV;
1344 }
1345 /*
1346 * If Winbond chip, address of chip and W83792D_REG_I2C_ADDR
1347 * should match
1348 */
1349 if (w83792d_read_value(client, W83792D_REG_I2C_ADDR) != address)
1350 return -ENODEV;
1351
1352 /* Put it now into bank 0 and Vendor ID High Byte */
1353 w83792d_write_value(client,
1354 W83792D_REG_BANK,
1355 (w83792d_read_value(client,
1356 W83792D_REG_BANK) & 0x78) | 0x80);
1357
1358 /* Determine the chip type. */
1359 val1 = w83792d_read_value(client, W83792D_REG_WCHIPID);
1360 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN);
1361 if (val1 != 0x7a || val2 != 0x5c)
1362 return -ENODEV;
1363
1364 strlcpy(info->type, "w83792d", I2C_NAME_SIZE);
1365
1366 return 0;
1367 }
1368
1369 static int
1370 w83792d_probe(struct i2c_client *client, const struct i2c_device_id *id)
1371 {
1372 struct w83792d_data *data;
1373 struct device *dev = &client->dev;
1374 int i, val1, err;
1375
1376 data = devm_kzalloc(dev, sizeof(struct w83792d_data), GFP_KERNEL);
1377 if (!data)
1378 return -ENOMEM;
1379
1380 i2c_set_clientdata(client, data);
1381 mutex_init(&data->update_lock);
1382
1383 err = w83792d_detect_subclients(client);
1384 if (err)
1385 return err;
1386
1387 /* Initialize the chip */
1388 w83792d_init_client(client);
1389
1390 /* A few vars need to be filled upon startup */
1391 for (i = 0; i < 7; i++) {
1392 data->fan_min[i] = w83792d_read_value(client,
1393 W83792D_REG_FAN_MIN[i]);
1394 }
1395
1396 /* Register sysfs hooks */
1397 err = sysfs_create_group(&dev->kobj, &w83792d_group);
1398 if (err)
1399 goto exit_i2c_unregister;
1400
1401 /*
1402 * Read GPIO enable register to check if pins for fan 4,5 are used as
1403 * GPIO
1404 */
1405 val1 = w83792d_read_value(client, W83792D_REG_GPIO_EN);
1406
1407 if (!(val1 & 0x40)) {
1408 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[0]);
1409 if (err)
1410 goto exit_remove_files;
1411 }
1412
1413 if (!(val1 & 0x20)) {
1414 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[1]);
1415 if (err)
1416 goto exit_remove_files;
1417 }
1418
1419 val1 = w83792d_read_value(client, W83792D_REG_PIN);
1420 if (val1 & 0x40) {
1421 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[2]);
1422 if (err)
1423 goto exit_remove_files;
1424 }
1425
1426 if (val1 & 0x04) {
1427 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[3]);
1428 if (err)
1429 goto exit_remove_files;
1430 }
1431
1432 data->hwmon_dev = hwmon_device_register(dev);
1433 if (IS_ERR(data->hwmon_dev)) {
1434 err = PTR_ERR(data->hwmon_dev);
1435 goto exit_remove_files;
1436 }
1437
1438 return 0;
1439
1440 exit_remove_files:
1441 sysfs_remove_group(&dev->kobj, &w83792d_group);
1442 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++)
1443 sysfs_remove_group(&dev->kobj, &w83792d_group_fan[i]);
1444 exit_i2c_unregister:
1445 i2c_unregister_device(data->lm75[0]);
1446 i2c_unregister_device(data->lm75[1]);
1447 return err;
1448 }
1449
1450 static int
1451 w83792d_remove(struct i2c_client *client)
1452 {
1453 struct w83792d_data *data = i2c_get_clientdata(client);
1454 int i;
1455
1456 hwmon_device_unregister(data->hwmon_dev);
1457 sysfs_remove_group(&client->dev.kobj, &w83792d_group);
1458 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++)
1459 sysfs_remove_group(&client->dev.kobj,
1460 &w83792d_group_fan[i]);
1461
1462 i2c_unregister_device(data->lm75[0]);
1463 i2c_unregister_device(data->lm75[1]);
1464
1465 return 0;
1466 }
1467
1468 static void
1469 w83792d_init_client(struct i2c_client *client)
1470 {
1471 u8 temp2_cfg, temp3_cfg, vid_in_b;
1472
1473 if (init)
1474 w83792d_write_value(client, W83792D_REG_CONFIG, 0x80);
1475
1476 /*
1477 * Clear the bit6 of W83792D_REG_VID_IN_B(set it into 0):
1478 * W83792D_REG_VID_IN_B bit6 = 0: the high/low limit of
1479 * vin0/vin1 can be modified by user;
1480 * W83792D_REG_VID_IN_B bit6 = 1: the high/low limit of
1481 * vin0/vin1 auto-updated, can NOT be modified by user.
1482 */
1483 vid_in_b = w83792d_read_value(client, W83792D_REG_VID_IN_B);
1484 w83792d_write_value(client, W83792D_REG_VID_IN_B,
1485 vid_in_b & 0xbf);
1486
1487 temp2_cfg = w83792d_read_value(client, W83792D_REG_TEMP2_CONFIG);
1488 temp3_cfg = w83792d_read_value(client, W83792D_REG_TEMP3_CONFIG);
1489 w83792d_write_value(client, W83792D_REG_TEMP2_CONFIG,
1490 temp2_cfg & 0xe6);
1491 w83792d_write_value(client, W83792D_REG_TEMP3_CONFIG,
1492 temp3_cfg & 0xe6);
1493
1494 /* Start monitoring */
1495 w83792d_write_value(client, W83792D_REG_CONFIG,
1496 (w83792d_read_value(client,
1497 W83792D_REG_CONFIG) & 0xf7)
1498 | 0x01);
1499 }
1500
1501 static struct w83792d_data *w83792d_update_device(struct device *dev)
1502 {
1503 struct i2c_client *client = to_i2c_client(dev);
1504 struct w83792d_data *data = i2c_get_clientdata(client);
1505 int i, j;
1506 u8 reg_array_tmp[4], reg_tmp;
1507
1508 mutex_lock(&data->update_lock);
1509
1510 if (time_after
1511 (jiffies - data->last_updated, (unsigned long) (HZ * 3))
1512 || time_before(jiffies, data->last_updated) || !data->valid) {
1513 dev_dbg(dev, "Starting device update\n");
1514
1515 /* Update the voltages measured value and limits */
1516 for (i = 0; i < 9; i++) {
1517 data->in[i] = w83792d_read_value(client,
1518 W83792D_REG_IN[i]);
1519 data->in_max[i] = w83792d_read_value(client,
1520 W83792D_REG_IN_MAX[i]);
1521 data->in_min[i] = w83792d_read_value(client,
1522 W83792D_REG_IN_MIN[i]);
1523 }
1524 data->low_bits = w83792d_read_value(client,
1525 W83792D_REG_LOW_BITS1) +
1526 (w83792d_read_value(client,
1527 W83792D_REG_LOW_BITS2) << 8);
1528 for (i = 0; i < 7; i++) {
1529 /* Update the Fan measured value and limits */
1530 data->fan[i] = w83792d_read_value(client,
1531 W83792D_REG_FAN[i]);
1532 data->fan_min[i] = w83792d_read_value(client,
1533 W83792D_REG_FAN_MIN[i]);
1534 /* Update the PWM/DC Value and PWM/DC flag */
1535 data->pwm[i] = w83792d_read_value(client,
1536 W83792D_REG_PWM[i]);
1537 }
1538
1539 reg_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG);
1540 data->pwmenable[0] = reg_tmp & 0x03;
1541 data->pwmenable[1] = (reg_tmp>>2) & 0x03;
1542 data->pwmenable[2] = (reg_tmp>>4) & 0x03;
1543
1544 for (i = 0; i < 3; i++) {
1545 data->temp1[i] = w83792d_read_value(client,
1546 W83792D_REG_TEMP1[i]);
1547 }
1548 for (i = 0; i < 2; i++) {
1549 for (j = 0; j < 6; j++) {
1550 data->temp_add[i][j] = w83792d_read_value(
1551 client, W83792D_REG_TEMP_ADD[i][j]);
1552 }
1553 }
1554
1555 /* Update the Fan Divisor */
1556 for (i = 0; i < 4; i++) {
1557 reg_array_tmp[i] = w83792d_read_value(client,
1558 W83792D_REG_FAN_DIV[i]);
1559 }
1560 data->fan_div[0] = reg_array_tmp[0] & 0x07;
1561 data->fan_div[1] = (reg_array_tmp[0] >> 4) & 0x07;
1562 data->fan_div[2] = reg_array_tmp[1] & 0x07;
1563 data->fan_div[3] = (reg_array_tmp[1] >> 4) & 0x07;
1564 data->fan_div[4] = reg_array_tmp[2] & 0x07;
1565 data->fan_div[5] = (reg_array_tmp[2] >> 4) & 0x07;
1566 data->fan_div[6] = reg_array_tmp[3] & 0x07;
1567
1568 /* Update the realtime status */
1569 data->alarms = w83792d_read_value(client, W83792D_REG_ALARM1) +
1570 (w83792d_read_value(client, W83792D_REG_ALARM2) << 8) +
1571 (w83792d_read_value(client, W83792D_REG_ALARM3) << 16);
1572
1573 /* Update CaseOpen status and it's CLR_CHS. */
1574 data->chassis = (w83792d_read_value(client,
1575 W83792D_REG_CHASSIS) >> 5) & 0x01;
1576
1577 /* Update Thermal Cruise/Smart Fan I target value */
1578 for (i = 0; i < 3; i++) {
1579 data->thermal_cruise[i] =
1580 w83792d_read_value(client,
1581 W83792D_REG_THERMAL[i]) & 0x7f;
1582 }
1583
1584 /* Update Smart Fan I/II tolerance */
1585 reg_tmp = w83792d_read_value(client, W83792D_REG_TOLERANCE[0]);
1586 data->tolerance[0] = reg_tmp & 0x0f;
1587 data->tolerance[1] = (reg_tmp >> 4) & 0x0f;
1588 data->tolerance[2] = w83792d_read_value(client,
1589 W83792D_REG_TOLERANCE[2]) & 0x0f;
1590
1591 /* Update Smart Fan II temperature points */
1592 for (i = 0; i < 3; i++) {
1593 for (j = 0; j < 4; j++) {
1594 data->sf2_points[i][j]
1595 = w83792d_read_value(client,
1596 W83792D_REG_POINTS[i][j]) & 0x7f;
1597 }
1598 }
1599
1600 /* Update Smart Fan II duty cycle levels */
1601 for (i = 0; i < 3; i++) {
1602 reg_tmp = w83792d_read_value(client,
1603 W83792D_REG_LEVELS[i][0]);
1604 data->sf2_levels[i][0] = reg_tmp & 0x0f;
1605 data->sf2_levels[i][1] = (reg_tmp >> 4) & 0x0f;
1606 reg_tmp = w83792d_read_value(client,
1607 W83792D_REG_LEVELS[i][2]);
1608 data->sf2_levels[i][2] = (reg_tmp >> 4) & 0x0f;
1609 data->sf2_levels[i][3] = reg_tmp & 0x0f;
1610 }
1611
1612 data->last_updated = jiffies;
1613 data->valid = 1;
1614 }
1615
1616 mutex_unlock(&data->update_lock);
1617
1618 #ifdef DEBUG
1619 w83792d_print_debug(data, dev);
1620 #endif
1621
1622 return data;
1623 }
1624
1625 #ifdef DEBUG
1626 static void w83792d_print_debug(struct w83792d_data *data, struct device *dev)
1627 {
1628 int i = 0, j = 0;
1629 dev_dbg(dev, "==========The following is the debug message...========\n");
1630 dev_dbg(dev, "9 set of Voltages: =====>\n");
1631 for (i = 0; i < 9; i++) {
1632 dev_dbg(dev, "vin[%d] is: 0x%x\n", i, data->in[i]);
1633 dev_dbg(dev, "vin[%d] max is: 0x%x\n", i, data->in_max[i]);
1634 dev_dbg(dev, "vin[%d] min is: 0x%x\n", i, data->in_min[i]);
1635 }
1636 dev_dbg(dev, "Low Bit1 is: 0x%x\n", data->low_bits & 0xff);
1637 dev_dbg(dev, "Low Bit2 is: 0x%x\n", data->low_bits >> 8);
1638 dev_dbg(dev, "7 set of Fan Counts and Duty Cycles: =====>\n");
1639 for (i = 0; i < 7; i++) {
1640 dev_dbg(dev, "fan[%d] is: 0x%x\n", i, data->fan[i]);
1641 dev_dbg(dev, "fan[%d] min is: 0x%x\n", i, data->fan_min[i]);
1642 dev_dbg(dev, "pwm[%d] is: 0x%x\n", i, data->pwm[i]);
1643 }
1644 dev_dbg(dev, "3 set of Temperatures: =====>\n");
1645 for (i = 0; i < 3; i++)
1646 dev_dbg(dev, "temp1[%d] is: 0x%x\n", i, data->temp1[i]);
1647
1648 for (i = 0; i < 2; i++) {
1649 for (j = 0; j < 6; j++) {
1650 dev_dbg(dev, "temp_add[%d][%d] is: 0x%x\n", i, j,
1651 data->temp_add[i][j]);
1652 }
1653 }
1654
1655 for (i = 0; i < 7; i++)
1656 dev_dbg(dev, "fan_div[%d] is: 0x%x\n", i, data->fan_div[i]);
1657
1658 dev_dbg(dev, "==========End of the debug message...================\n");
1659 dev_dbg(dev, "\n");
1660 }
1661 #endif
1662
1663 module_i2c_driver(w83792d_driver);
1664
1665 MODULE_AUTHOR("Shane Huang (Winbond)");
1666 MODULE_DESCRIPTION("W83792AD/D driver for linux-2.6");
1667 MODULE_LICENSE("GPL");
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