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Merge tag 'selinux-pr-20201113' of git://git.kernel.org/pub/scm/linux/kernel/git...
[mirror_ubuntu-jammy-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 static int w83792d_detect(struct i2c_client *client,
291 struct i2c_board_info *info);
292 static int w83792d_remove(struct i2c_client *client);
293 static struct w83792d_data *w83792d_update_device(struct device *dev);
294
295 #ifdef DEBUG
296 static void w83792d_print_debug(struct w83792d_data *data, struct device *dev);
297 #endif
298
299 static void w83792d_init_client(struct i2c_client *client);
300
301 static const struct i2c_device_id w83792d_id[] = {
302 { "w83792d", 0 },
303 { }
304 };
305 MODULE_DEVICE_TABLE(i2c, w83792d_id);
306
307 static struct i2c_driver w83792d_driver = {
308 .class = I2C_CLASS_HWMON,
309 .driver = {
310 .name = "w83792d",
311 },
312 .probe_new = w83792d_probe,
313 .remove = w83792d_remove,
314 .id_table = w83792d_id,
315 .detect = w83792d_detect,
316 .address_list = normal_i2c,
317 };
318
319 static inline long in_count_from_reg(int nr, struct w83792d_data *data)
320 {
321 /* in7 and in8 do not have low bits, but the formula still works */
322 return (data->in[nr] << 2) | ((data->low_bits >> (2 * nr)) & 0x03);
323 }
324
325 /*
326 * The SMBus locks itself. The Winbond W83792D chip has a bank register,
327 * but the driver only accesses registers in bank 0, so we don't have
328 * to switch banks and lock access between switches.
329 */
330 static inline int w83792d_read_value(struct i2c_client *client, u8 reg)
331 {
332 return i2c_smbus_read_byte_data(client, reg);
333 }
334
335 static inline int
336 w83792d_write_value(struct i2c_client *client, u8 reg, u8 value)
337 {
338 return i2c_smbus_write_byte_data(client, reg, value);
339 }
340
341 /* following are the sysfs callback functions */
342 static ssize_t show_in(struct device *dev, struct device_attribute *attr,
343 char *buf)
344 {
345 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
346 int nr = sensor_attr->index;
347 struct w83792d_data *data = w83792d_update_device(dev);
348 return sprintf(buf, "%ld\n",
349 IN_FROM_REG(nr, in_count_from_reg(nr, data)));
350 }
351
352 #define show_in_reg(reg) \
353 static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
354 char *buf) \
355 { \
356 struct sensor_device_attribute *sensor_attr \
357 = to_sensor_dev_attr(attr); \
358 int nr = sensor_attr->index; \
359 struct w83792d_data *data = w83792d_update_device(dev); \
360 return sprintf(buf, "%ld\n", \
361 (long)(IN_FROM_REG(nr, data->reg[nr]) * 4)); \
362 }
363
364 show_in_reg(in_min);
365 show_in_reg(in_max);
366
367 #define store_in_reg(REG, reg) \
368 static ssize_t store_in_##reg(struct device *dev, \
369 struct device_attribute *attr, \
370 const char *buf, size_t count) \
371 { \
372 struct sensor_device_attribute *sensor_attr \
373 = to_sensor_dev_attr(attr); \
374 int nr = sensor_attr->index; \
375 struct i2c_client *client = to_i2c_client(dev); \
376 struct w83792d_data *data = i2c_get_clientdata(client); \
377 unsigned long val; \
378 int err = kstrtoul(buf, 10, &val); \
379 if (err) \
380 return err; \
381 mutex_lock(&data->update_lock); \
382 data->in_##reg[nr] = clamp_val(IN_TO_REG(nr, val) / 4, 0, 255); \
383 w83792d_write_value(client, W83792D_REG_IN_##REG[nr], \
384 data->in_##reg[nr]); \
385 mutex_unlock(&data->update_lock); \
386 \
387 return count; \
388 }
389 store_in_reg(MIN, min);
390 store_in_reg(MAX, max);
391
392 #define show_fan_reg(reg) \
393 static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
394 char *buf) \
395 { \
396 struct sensor_device_attribute *sensor_attr \
397 = to_sensor_dev_attr(attr); \
398 int nr = sensor_attr->index - 1; \
399 struct w83792d_data *data = w83792d_update_device(dev); \
400 return sprintf(buf, "%d\n", \
401 FAN_FROM_REG(data->reg[nr], DIV_FROM_REG(data->fan_div[nr]))); \
402 }
403
404 show_fan_reg(fan);
405 show_fan_reg(fan_min);
406
407 static ssize_t
408 store_fan_min(struct device *dev, struct device_attribute *attr,
409 const char *buf, size_t count)
410 {
411 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
412 int nr = sensor_attr->index - 1;
413 struct i2c_client *client = to_i2c_client(dev);
414 struct w83792d_data *data = i2c_get_clientdata(client);
415 unsigned long val;
416 int err;
417
418 err = kstrtoul(buf, 10, &val);
419 if (err)
420 return err;
421
422 mutex_lock(&data->update_lock);
423 data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
424 w83792d_write_value(client, W83792D_REG_FAN_MIN[nr],
425 data->fan_min[nr]);
426 mutex_unlock(&data->update_lock);
427
428 return count;
429 }
430
431 static ssize_t
432 show_fan_div(struct device *dev, struct device_attribute *attr,
433 char *buf)
434 {
435 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
436 int nr = sensor_attr->index;
437 struct w83792d_data *data = w83792d_update_device(dev);
438 return sprintf(buf, "%u\n", DIV_FROM_REG(data->fan_div[nr - 1]));
439 }
440
441 /*
442 * Note: we save and restore the fan minimum here, because its value is
443 * determined in part by the fan divisor. This follows the principle of
444 * least surprise; the user doesn't expect the fan minimum to change just
445 * because the divisor changed.
446 */
447 static ssize_t
448 store_fan_div(struct device *dev, struct device_attribute *attr,
449 const char *buf, size_t count)
450 {
451 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
452 int nr = sensor_attr->index - 1;
453 struct i2c_client *client = to_i2c_client(dev);
454 struct w83792d_data *data = i2c_get_clientdata(client);
455 unsigned long min;
456 /*u8 reg;*/
457 u8 fan_div_reg = 0;
458 u8 tmp_fan_div;
459 unsigned long val;
460 int err;
461
462 err = kstrtoul(buf, 10, &val);
463 if (err)
464 return err;
465
466 /* Save fan_min */
467 mutex_lock(&data->update_lock);
468 min = FAN_FROM_REG(data->fan_min[nr],
469 DIV_FROM_REG(data->fan_div[nr]));
470
471 data->fan_div[nr] = DIV_TO_REG(val);
472
473 fan_div_reg = w83792d_read_value(client, W83792D_REG_FAN_DIV[nr >> 1]);
474 fan_div_reg &= (nr & 0x01) ? 0x8f : 0xf8;
475 tmp_fan_div = (nr & 0x01) ? (((data->fan_div[nr]) << 4) & 0x70)
476 : ((data->fan_div[nr]) & 0x07);
477 w83792d_write_value(client, W83792D_REG_FAN_DIV[nr >> 1],
478 fan_div_reg | tmp_fan_div);
479
480 /* Restore fan_min */
481 data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
482 w83792d_write_value(client, W83792D_REG_FAN_MIN[nr], data->fan_min[nr]);
483 mutex_unlock(&data->update_lock);
484
485 return count;
486 }
487
488 /* read/write the temperature1, includes measured value and limits */
489
490 static ssize_t show_temp1(struct device *dev, struct device_attribute *attr,
491 char *buf)
492 {
493 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
494 int nr = sensor_attr->index;
495 struct w83792d_data *data = w83792d_update_device(dev);
496 return sprintf(buf, "%d\n", TEMP1_FROM_REG(data->temp1[nr]));
497 }
498
499 static ssize_t store_temp1(struct device *dev, struct device_attribute *attr,
500 const char *buf, size_t count)
501 {
502 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
503 int nr = sensor_attr->index;
504 struct i2c_client *client = to_i2c_client(dev);
505 struct w83792d_data *data = i2c_get_clientdata(client);
506 long val;
507 int err;
508
509 err = kstrtol(buf, 10, &val);
510 if (err)
511 return err;
512
513 mutex_lock(&data->update_lock);
514 data->temp1[nr] = TEMP1_TO_REG(val);
515 w83792d_write_value(client, W83792D_REG_TEMP1[nr],
516 data->temp1[nr]);
517 mutex_unlock(&data->update_lock);
518
519 return count;
520 }
521
522 /* read/write the temperature2-3, includes measured value and limits */
523
524 static ssize_t show_temp23(struct device *dev, struct device_attribute *attr,
525 char *buf)
526 {
527 struct sensor_device_attribute_2 *sensor_attr
528 = to_sensor_dev_attr_2(attr);
529 int nr = sensor_attr->nr;
530 int index = sensor_attr->index;
531 struct w83792d_data *data = w83792d_update_device(dev);
532 return sprintf(buf, "%ld\n",
533 (long)TEMP_ADD_FROM_REG(data->temp_add[nr][index],
534 data->temp_add[nr][index+1]));
535 }
536
537 static ssize_t store_temp23(struct device *dev, struct device_attribute *attr,
538 const char *buf, size_t count)
539 {
540 struct sensor_device_attribute_2 *sensor_attr
541 = to_sensor_dev_attr_2(attr);
542 int nr = sensor_attr->nr;
543 int index = sensor_attr->index;
544 struct i2c_client *client = to_i2c_client(dev);
545 struct w83792d_data *data = i2c_get_clientdata(client);
546 long val;
547 int err;
548
549 err = kstrtol(buf, 10, &val);
550 if (err)
551 return err;
552
553 mutex_lock(&data->update_lock);
554 data->temp_add[nr][index] = TEMP_ADD_TO_REG_HIGH(val);
555 data->temp_add[nr][index+1] = TEMP_ADD_TO_REG_LOW(val);
556 w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index],
557 data->temp_add[nr][index]);
558 w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index+1],
559 data->temp_add[nr][index+1]);
560 mutex_unlock(&data->update_lock);
561
562 return count;
563 }
564
565 /* get realtime status of all sensors items: voltage, temp, fan */
566 static ssize_t
567 alarms_show(struct device *dev, struct device_attribute *attr, char *buf)
568 {
569 struct w83792d_data *data = w83792d_update_device(dev);
570 return sprintf(buf, "%d\n", data->alarms);
571 }
572
573 static ssize_t show_alarm(struct device *dev,
574 struct device_attribute *attr, char *buf)
575 {
576 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
577 int nr = sensor_attr->index;
578 struct w83792d_data *data = w83792d_update_device(dev);
579 return sprintf(buf, "%d\n", (data->alarms >> nr) & 1);
580 }
581
582 static ssize_t
583 show_pwm(struct device *dev, struct device_attribute *attr,
584 char *buf)
585 {
586 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
587 int nr = sensor_attr->index;
588 struct w83792d_data *data = w83792d_update_device(dev);
589 return sprintf(buf, "%d\n", (data->pwm[nr] & 0x0f) << 4);
590 }
591
592 static ssize_t
593 show_pwmenable(struct device *dev, struct device_attribute *attr,
594 char *buf)
595 {
596 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
597 int nr = sensor_attr->index - 1;
598 struct w83792d_data *data = w83792d_update_device(dev);
599 long pwm_enable_tmp = 1;
600
601 switch (data->pwmenable[nr]) {
602 case 0:
603 pwm_enable_tmp = 1; /* manual mode */
604 break;
605 case 1:
606 pwm_enable_tmp = 3; /*thermal cruise/Smart Fan I */
607 break;
608 case 2:
609 pwm_enable_tmp = 2; /* Smart Fan II */
610 break;
611 }
612
613 return sprintf(buf, "%ld\n", pwm_enable_tmp);
614 }
615
616 static ssize_t
617 store_pwm(struct device *dev, struct device_attribute *attr,
618 const char *buf, size_t count)
619 {
620 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
621 int nr = sensor_attr->index;
622 struct i2c_client *client = to_i2c_client(dev);
623 struct w83792d_data *data = i2c_get_clientdata(client);
624 unsigned long val;
625 int err;
626
627 err = kstrtoul(buf, 10, &val);
628 if (err)
629 return err;
630 val = clamp_val(val, 0, 255) >> 4;
631
632 mutex_lock(&data->update_lock);
633 val |= w83792d_read_value(client, W83792D_REG_PWM[nr]) & 0xf0;
634 data->pwm[nr] = val;
635 w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]);
636 mutex_unlock(&data->update_lock);
637
638 return count;
639 }
640
641 static ssize_t
642 store_pwmenable(struct device *dev, struct device_attribute *attr,
643 const char *buf, size_t count)
644 {
645 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
646 int nr = sensor_attr->index - 1;
647 struct i2c_client *client = to_i2c_client(dev);
648 struct w83792d_data *data = i2c_get_clientdata(client);
649 u8 fan_cfg_tmp, cfg1_tmp, cfg2_tmp, cfg3_tmp, cfg4_tmp;
650 unsigned long val;
651 int err;
652
653 err = kstrtoul(buf, 10, &val);
654 if (err)
655 return err;
656
657 if (val < 1 || val > 3)
658 return -EINVAL;
659
660 mutex_lock(&data->update_lock);
661 switch (val) {
662 case 1:
663 data->pwmenable[nr] = 0; /* manual mode */
664 break;
665 case 2:
666 data->pwmenable[nr] = 2; /* Smart Fan II */
667 break;
668 case 3:
669 data->pwmenable[nr] = 1; /* thermal cruise/Smart Fan I */
670 break;
671 }
672 cfg1_tmp = data->pwmenable[0];
673 cfg2_tmp = (data->pwmenable[1]) << 2;
674 cfg3_tmp = (data->pwmenable[2]) << 4;
675 cfg4_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG) & 0xc0;
676 fan_cfg_tmp = ((cfg4_tmp | cfg3_tmp) | cfg2_tmp) | cfg1_tmp;
677 w83792d_write_value(client, W83792D_REG_FAN_CFG, fan_cfg_tmp);
678 mutex_unlock(&data->update_lock);
679
680 return count;
681 }
682
683 static ssize_t
684 show_pwm_mode(struct device *dev, struct device_attribute *attr,
685 char *buf)
686 {
687 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
688 int nr = sensor_attr->index;
689 struct w83792d_data *data = w83792d_update_device(dev);
690 return sprintf(buf, "%d\n", data->pwm[nr] >> 7);
691 }
692
693 static ssize_t
694 store_pwm_mode(struct device *dev, struct device_attribute *attr,
695 const char *buf, size_t count)
696 {
697 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
698 int nr = sensor_attr->index;
699 struct i2c_client *client = to_i2c_client(dev);
700 struct w83792d_data *data = i2c_get_clientdata(client);
701 unsigned long val;
702 int err;
703
704 err = kstrtoul(buf, 10, &val);
705 if (err)
706 return err;
707 if (val > 1)
708 return -EINVAL;
709
710 mutex_lock(&data->update_lock);
711 data->pwm[nr] = w83792d_read_value(client, W83792D_REG_PWM[nr]);
712 if (val) { /* PWM mode */
713 data->pwm[nr] |= 0x80;
714 } else { /* DC mode */
715 data->pwm[nr] &= 0x7f;
716 }
717 w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]);
718 mutex_unlock(&data->update_lock);
719
720 return count;
721 }
722
723 static ssize_t
724 intrusion0_alarm_show(struct device *dev, struct device_attribute *attr,
725 char *buf)
726 {
727 struct w83792d_data *data = w83792d_update_device(dev);
728 return sprintf(buf, "%d\n", data->chassis);
729 }
730
731 static ssize_t
732 intrusion0_alarm_store(struct device *dev, struct device_attribute *attr,
733 const char *buf, size_t count)
734 {
735 struct i2c_client *client = to_i2c_client(dev);
736 struct w83792d_data *data = i2c_get_clientdata(client);
737 unsigned long val;
738 u8 reg;
739
740 if (kstrtoul(buf, 10, &val) || val != 0)
741 return -EINVAL;
742
743 mutex_lock(&data->update_lock);
744 reg = w83792d_read_value(client, W83792D_REG_CHASSIS_CLR);
745 w83792d_write_value(client, W83792D_REG_CHASSIS_CLR, reg | 0x80);
746 data->valid = 0; /* Force cache refresh */
747 mutex_unlock(&data->update_lock);
748
749 return count;
750 }
751
752 /* For Smart Fan I / Thermal Cruise */
753 static ssize_t
754 show_thermal_cruise(struct device *dev, struct device_attribute *attr,
755 char *buf)
756 {
757 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
758 int nr = sensor_attr->index;
759 struct w83792d_data *data = w83792d_update_device(dev);
760 return sprintf(buf, "%ld\n", (long)data->thermal_cruise[nr-1]);
761 }
762
763 static ssize_t
764 store_thermal_cruise(struct device *dev, struct device_attribute *attr,
765 const char *buf, size_t count)
766 {
767 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
768 int nr = sensor_attr->index - 1;
769 struct i2c_client *client = to_i2c_client(dev);
770 struct w83792d_data *data = i2c_get_clientdata(client);
771 u8 target_tmp = 0, target_mask = 0;
772 unsigned long val;
773 int err;
774
775 err = kstrtoul(buf, 10, &val);
776 if (err)
777 return err;
778
779 target_tmp = val;
780 target_tmp = target_tmp & 0x7f;
781 mutex_lock(&data->update_lock);
782 target_mask = w83792d_read_value(client,
783 W83792D_REG_THERMAL[nr]) & 0x80;
784 data->thermal_cruise[nr] = clamp_val(target_tmp, 0, 255);
785 w83792d_write_value(client, W83792D_REG_THERMAL[nr],
786 (data->thermal_cruise[nr]) | target_mask);
787 mutex_unlock(&data->update_lock);
788
789 return count;
790 }
791
792 /* For Smart Fan I/Thermal Cruise and Smart Fan II */
793 static ssize_t
794 show_tolerance(struct device *dev, struct device_attribute *attr,
795 char *buf)
796 {
797 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
798 int nr = sensor_attr->index;
799 struct w83792d_data *data = w83792d_update_device(dev);
800 return sprintf(buf, "%ld\n", (long)data->tolerance[nr-1]);
801 }
802
803 static ssize_t
804 store_tolerance(struct device *dev, struct device_attribute *attr,
805 const char *buf, size_t count)
806 {
807 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
808 int nr = sensor_attr->index - 1;
809 struct i2c_client *client = to_i2c_client(dev);
810 struct w83792d_data *data = i2c_get_clientdata(client);
811 u8 tol_tmp, tol_mask;
812 unsigned long val;
813 int err;
814
815 err = kstrtoul(buf, 10, &val);
816 if (err)
817 return err;
818
819 mutex_lock(&data->update_lock);
820 tol_mask = w83792d_read_value(client,
821 W83792D_REG_TOLERANCE[nr]) & ((nr == 1) ? 0x0f : 0xf0);
822 tol_tmp = clamp_val(val, 0, 15);
823 tol_tmp &= 0x0f;
824 data->tolerance[nr] = tol_tmp;
825 if (nr == 1)
826 tol_tmp <<= 4;
827 w83792d_write_value(client, W83792D_REG_TOLERANCE[nr],
828 tol_mask | tol_tmp);
829 mutex_unlock(&data->update_lock);
830
831 return count;
832 }
833
834 /* For Smart Fan II */
835 static ssize_t
836 show_sf2_point(struct device *dev, struct device_attribute *attr,
837 char *buf)
838 {
839 struct sensor_device_attribute_2 *sensor_attr
840 = to_sensor_dev_attr_2(attr);
841 int nr = sensor_attr->nr;
842 int index = sensor_attr->index;
843 struct w83792d_data *data = w83792d_update_device(dev);
844 return sprintf(buf, "%ld\n", (long)data->sf2_points[index-1][nr-1]);
845 }
846
847 static ssize_t
848 store_sf2_point(struct device *dev, struct device_attribute *attr,
849 const char *buf, size_t count)
850 {
851 struct sensor_device_attribute_2 *sensor_attr
852 = to_sensor_dev_attr_2(attr);
853 int nr = sensor_attr->nr - 1;
854 int index = sensor_attr->index - 1;
855 struct i2c_client *client = to_i2c_client(dev);
856 struct w83792d_data *data = i2c_get_clientdata(client);
857 u8 mask_tmp = 0;
858 unsigned long val;
859 int err;
860
861 err = kstrtoul(buf, 10, &val);
862 if (err)
863 return err;
864
865 mutex_lock(&data->update_lock);
866 data->sf2_points[index][nr] = clamp_val(val, 0, 127);
867 mask_tmp = w83792d_read_value(client,
868 W83792D_REG_POINTS[index][nr]) & 0x80;
869 w83792d_write_value(client, W83792D_REG_POINTS[index][nr],
870 mask_tmp|data->sf2_points[index][nr]);
871 mutex_unlock(&data->update_lock);
872
873 return count;
874 }
875
876 static ssize_t
877 show_sf2_level(struct device *dev, struct device_attribute *attr,
878 char *buf)
879 {
880 struct sensor_device_attribute_2 *sensor_attr
881 = to_sensor_dev_attr_2(attr);
882 int nr = sensor_attr->nr;
883 int index = sensor_attr->index;
884 struct w83792d_data *data = w83792d_update_device(dev);
885 return sprintf(buf, "%d\n",
886 (((data->sf2_levels[index-1][nr]) * 100) / 15));
887 }
888
889 static ssize_t
890 store_sf2_level(struct device *dev, struct device_attribute *attr,
891 const char *buf, size_t count)
892 {
893 struct sensor_device_attribute_2 *sensor_attr
894 = to_sensor_dev_attr_2(attr);
895 int nr = sensor_attr->nr;
896 int index = sensor_attr->index - 1;
897 struct i2c_client *client = to_i2c_client(dev);
898 struct w83792d_data *data = i2c_get_clientdata(client);
899 u8 mask_tmp = 0, level_tmp = 0;
900 unsigned long val;
901 int err;
902
903 err = kstrtoul(buf, 10, &val);
904 if (err)
905 return err;
906
907 mutex_lock(&data->update_lock);
908 data->sf2_levels[index][nr] = clamp_val((val * 15) / 100, 0, 15);
909 mask_tmp = w83792d_read_value(client, W83792D_REG_LEVELS[index][nr])
910 & ((nr == 3) ? 0xf0 : 0x0f);
911 if (nr == 3)
912 level_tmp = data->sf2_levels[index][nr];
913 else
914 level_tmp = data->sf2_levels[index][nr] << 4;
915 w83792d_write_value(client, W83792D_REG_LEVELS[index][nr],
916 level_tmp | mask_tmp);
917 mutex_unlock(&data->update_lock);
918
919 return count;
920 }
921
922
923 static int
924 w83792d_detect_subclients(struct i2c_client *new_client)
925 {
926 int i, id;
927 int address = new_client->addr;
928 u8 val;
929 struct i2c_adapter *adapter = new_client->adapter;
930 struct w83792d_data *data = i2c_get_clientdata(new_client);
931
932 id = i2c_adapter_id(adapter);
933 if (force_subclients[0] == id && force_subclients[1] == address) {
934 for (i = 2; i <= 3; i++) {
935 if (force_subclients[i] < 0x48 ||
936 force_subclients[i] > 0x4f) {
937 dev_err(&new_client->dev,
938 "invalid subclient address %d; must be 0x48-0x4f\n",
939 force_subclients[i]);
940 return -ENODEV;
941 }
942 }
943 w83792d_write_value(new_client, W83792D_REG_I2C_SUBADDR,
944 (force_subclients[2] & 0x07) |
945 ((force_subclients[3] & 0x07) << 4));
946 }
947
948 val = w83792d_read_value(new_client, W83792D_REG_I2C_SUBADDR);
949 if (!(val & 0x08))
950 data->lm75[0] = devm_i2c_new_dummy_device(&new_client->dev, adapter,
951 0x48 + (val & 0x7));
952 if (!(val & 0x80)) {
953 if (!IS_ERR(data->lm75[0]) &&
954 ((val & 0x7) == ((val >> 4) & 0x7))) {
955 dev_err(&new_client->dev,
956 "duplicate addresses 0x%x, use force_subclient\n",
957 data->lm75[0]->addr);
958 return -ENODEV;
959 }
960 data->lm75[1] = devm_i2c_new_dummy_device(&new_client->dev, adapter,
961 0x48 + ((val >> 4) & 0x7));
962 }
963
964 return 0;
965 }
966
967 static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0);
968 static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1);
969 static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2);
970 static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3);
971 static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 4);
972 static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 5);
973 static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 6);
974 static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 7);
975 static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_in, NULL, 8);
976 static SENSOR_DEVICE_ATTR(in0_min, S_IWUSR | S_IRUGO,
977 show_in_min, store_in_min, 0);
978 static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO,
979 show_in_min, store_in_min, 1);
980 static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO,
981 show_in_min, store_in_min, 2);
982 static SENSOR_DEVICE_ATTR(in3_min, S_IWUSR | S_IRUGO,
983 show_in_min, store_in_min, 3);
984 static SENSOR_DEVICE_ATTR(in4_min, S_IWUSR | S_IRUGO,
985 show_in_min, store_in_min, 4);
986 static SENSOR_DEVICE_ATTR(in5_min, S_IWUSR | S_IRUGO,
987 show_in_min, store_in_min, 5);
988 static SENSOR_DEVICE_ATTR(in6_min, S_IWUSR | S_IRUGO,
989 show_in_min, store_in_min, 6);
990 static SENSOR_DEVICE_ATTR(in7_min, S_IWUSR | S_IRUGO,
991 show_in_min, store_in_min, 7);
992 static SENSOR_DEVICE_ATTR(in8_min, S_IWUSR | S_IRUGO,
993 show_in_min, store_in_min, 8);
994 static SENSOR_DEVICE_ATTR(in0_max, S_IWUSR | S_IRUGO,
995 show_in_max, store_in_max, 0);
996 static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO,
997 show_in_max, store_in_max, 1);
998 static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO,
999 show_in_max, store_in_max, 2);
1000 static SENSOR_DEVICE_ATTR(in3_max, S_IWUSR | S_IRUGO,
1001 show_in_max, store_in_max, 3);
1002 static SENSOR_DEVICE_ATTR(in4_max, S_IWUSR | S_IRUGO,
1003 show_in_max, store_in_max, 4);
1004 static SENSOR_DEVICE_ATTR(in5_max, S_IWUSR | S_IRUGO,
1005 show_in_max, store_in_max, 5);
1006 static SENSOR_DEVICE_ATTR(in6_max, S_IWUSR | S_IRUGO,
1007 show_in_max, store_in_max, 6);
1008 static SENSOR_DEVICE_ATTR(in7_max, S_IWUSR | S_IRUGO,
1009 show_in_max, store_in_max, 7);
1010 static SENSOR_DEVICE_ATTR(in8_max, S_IWUSR | S_IRUGO,
1011 show_in_max, store_in_max, 8);
1012 static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp1, NULL, 0, 0);
1013 static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp23, NULL, 0, 0);
1014 static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp23, NULL, 1, 0);
1015 static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR,
1016 show_temp1, store_temp1, 0, 1);
1017 static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp23,
1018 store_temp23, 0, 2);
1019 static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp23,
1020 store_temp23, 1, 2);
1021 static SENSOR_DEVICE_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR,
1022 show_temp1, store_temp1, 0, 2);
1023 static SENSOR_DEVICE_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR,
1024 show_temp23, store_temp23, 0, 4);
1025 static SENSOR_DEVICE_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR,
1026 show_temp23, store_temp23, 1, 4);
1027 static DEVICE_ATTR_RO(alarms);
1028 static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
1029 static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
1030 static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 2);
1031 static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 3);
1032 static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 4);
1033 static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 5);
1034 static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 6);
1035 static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 7);
1036 static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 8);
1037 static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 9);
1038 static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 10);
1039 static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 11);
1040 static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 12);
1041 static SENSOR_DEVICE_ATTR(fan7_alarm, S_IRUGO, show_alarm, NULL, 15);
1042 static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 19);
1043 static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 20);
1044 static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 21);
1045 static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 22);
1046 static SENSOR_DEVICE_ATTR(fan6_alarm, S_IRUGO, show_alarm, NULL, 23);
1047 static DEVICE_ATTR_RW(intrusion0_alarm);
1048 static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0);
1049 static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1);
1050 static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2);
1051 static SENSOR_DEVICE_ATTR(pwm4, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 3);
1052 static SENSOR_DEVICE_ATTR(pwm5, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 4);
1053 static SENSOR_DEVICE_ATTR(pwm6, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 5);
1054 static SENSOR_DEVICE_ATTR(pwm7, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 6);
1055 static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO,
1056 show_pwmenable, store_pwmenable, 1);
1057 static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO,
1058 show_pwmenable, store_pwmenable, 2);
1059 static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO,
1060 show_pwmenable, store_pwmenable, 3);
1061 static SENSOR_DEVICE_ATTR(pwm1_mode, S_IWUSR | S_IRUGO,
1062 show_pwm_mode, store_pwm_mode, 0);
1063 static SENSOR_DEVICE_ATTR(pwm2_mode, S_IWUSR | S_IRUGO,
1064 show_pwm_mode, store_pwm_mode, 1);
1065 static SENSOR_DEVICE_ATTR(pwm3_mode, S_IWUSR | S_IRUGO,
1066 show_pwm_mode, store_pwm_mode, 2);
1067 static SENSOR_DEVICE_ATTR(pwm4_mode, S_IWUSR | S_IRUGO,
1068 show_pwm_mode, store_pwm_mode, 3);
1069 static SENSOR_DEVICE_ATTR(pwm5_mode, S_IWUSR | S_IRUGO,
1070 show_pwm_mode, store_pwm_mode, 4);
1071 static SENSOR_DEVICE_ATTR(pwm6_mode, S_IWUSR | S_IRUGO,
1072 show_pwm_mode, store_pwm_mode, 5);
1073 static SENSOR_DEVICE_ATTR(pwm7_mode, S_IWUSR | S_IRUGO,
1074 show_pwm_mode, store_pwm_mode, 6);
1075 static SENSOR_DEVICE_ATTR(tolerance1, S_IWUSR | S_IRUGO,
1076 show_tolerance, store_tolerance, 1);
1077 static SENSOR_DEVICE_ATTR(tolerance2, S_IWUSR | S_IRUGO,
1078 show_tolerance, store_tolerance, 2);
1079 static SENSOR_DEVICE_ATTR(tolerance3, S_IWUSR | S_IRUGO,
1080 show_tolerance, store_tolerance, 3);
1081 static SENSOR_DEVICE_ATTR(thermal_cruise1, S_IWUSR | S_IRUGO,
1082 show_thermal_cruise, store_thermal_cruise, 1);
1083 static SENSOR_DEVICE_ATTR(thermal_cruise2, S_IWUSR | S_IRUGO,
1084 show_thermal_cruise, store_thermal_cruise, 2);
1085 static SENSOR_DEVICE_ATTR(thermal_cruise3, S_IWUSR | S_IRUGO,
1086 show_thermal_cruise, store_thermal_cruise, 3);
1087 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan1, S_IRUGO | S_IWUSR,
1088 show_sf2_point, store_sf2_point, 1, 1);
1089 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan1, S_IRUGO | S_IWUSR,
1090 show_sf2_point, store_sf2_point, 2, 1);
1091 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan1, S_IRUGO | S_IWUSR,
1092 show_sf2_point, store_sf2_point, 3, 1);
1093 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan1, S_IRUGO | S_IWUSR,
1094 show_sf2_point, store_sf2_point, 4, 1);
1095 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan2, S_IRUGO | S_IWUSR,
1096 show_sf2_point, store_sf2_point, 1, 2);
1097 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan2, S_IRUGO | S_IWUSR,
1098 show_sf2_point, store_sf2_point, 2, 2);
1099 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan2, S_IRUGO | S_IWUSR,
1100 show_sf2_point, store_sf2_point, 3, 2);
1101 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan2, S_IRUGO | S_IWUSR,
1102 show_sf2_point, store_sf2_point, 4, 2);
1103 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan3, S_IRUGO | S_IWUSR,
1104 show_sf2_point, store_sf2_point, 1, 3);
1105 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan3, S_IRUGO | S_IWUSR,
1106 show_sf2_point, store_sf2_point, 2, 3);
1107 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan3, S_IRUGO | S_IWUSR,
1108 show_sf2_point, store_sf2_point, 3, 3);
1109 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan3, S_IRUGO | S_IWUSR,
1110 show_sf2_point, store_sf2_point, 4, 3);
1111 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan1, S_IRUGO | S_IWUSR,
1112 show_sf2_level, store_sf2_level, 1, 1);
1113 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan1, S_IRUGO | S_IWUSR,
1114 show_sf2_level, store_sf2_level, 2, 1);
1115 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan1, S_IRUGO | S_IWUSR,
1116 show_sf2_level, store_sf2_level, 3, 1);
1117 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan2, S_IRUGO | S_IWUSR,
1118 show_sf2_level, store_sf2_level, 1, 2);
1119 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan2, S_IRUGO | S_IWUSR,
1120 show_sf2_level, store_sf2_level, 2, 2);
1121 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan2, S_IRUGO | S_IWUSR,
1122 show_sf2_level, store_sf2_level, 3, 2);
1123 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan3, S_IRUGO | S_IWUSR,
1124 show_sf2_level, store_sf2_level, 1, 3);
1125 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan3, S_IRUGO | S_IWUSR,
1126 show_sf2_level, store_sf2_level, 2, 3);
1127 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan3, S_IRUGO | S_IWUSR,
1128 show_sf2_level, store_sf2_level, 3, 3);
1129 static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 1);
1130 static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 2);
1131 static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 3);
1132 static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 4);
1133 static SENSOR_DEVICE_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 5);
1134 static SENSOR_DEVICE_ATTR(fan6_input, S_IRUGO, show_fan, NULL, 6);
1135 static SENSOR_DEVICE_ATTR(fan7_input, S_IRUGO, show_fan, NULL, 7);
1136 static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO,
1137 show_fan_min, store_fan_min, 1);
1138 static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO,
1139 show_fan_min, store_fan_min, 2);
1140 static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO,
1141 show_fan_min, store_fan_min, 3);
1142 static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO,
1143 show_fan_min, store_fan_min, 4);
1144 static SENSOR_DEVICE_ATTR(fan5_min, S_IWUSR | S_IRUGO,
1145 show_fan_min, store_fan_min, 5);
1146 static SENSOR_DEVICE_ATTR(fan6_min, S_IWUSR | S_IRUGO,
1147 show_fan_min, store_fan_min, 6);
1148 static SENSOR_DEVICE_ATTR(fan7_min, S_IWUSR | S_IRUGO,
1149 show_fan_min, store_fan_min, 7);
1150 static SENSOR_DEVICE_ATTR(fan1_div, S_IWUSR | S_IRUGO,
1151 show_fan_div, store_fan_div, 1);
1152 static SENSOR_DEVICE_ATTR(fan2_div, S_IWUSR | S_IRUGO,
1153 show_fan_div, store_fan_div, 2);
1154 static SENSOR_DEVICE_ATTR(fan3_div, S_IWUSR | S_IRUGO,
1155 show_fan_div, store_fan_div, 3);
1156 static SENSOR_DEVICE_ATTR(fan4_div, S_IWUSR | S_IRUGO,
1157 show_fan_div, store_fan_div, 4);
1158 static SENSOR_DEVICE_ATTR(fan5_div, S_IWUSR | S_IRUGO,
1159 show_fan_div, store_fan_div, 5);
1160 static SENSOR_DEVICE_ATTR(fan6_div, S_IWUSR | S_IRUGO,
1161 show_fan_div, store_fan_div, 6);
1162 static SENSOR_DEVICE_ATTR(fan7_div, S_IWUSR | S_IRUGO,
1163 show_fan_div, store_fan_div, 7);
1164
1165 static struct attribute *w83792d_attributes_fan[4][7] = {
1166 {
1167 &sensor_dev_attr_fan4_input.dev_attr.attr,
1168 &sensor_dev_attr_fan4_min.dev_attr.attr,
1169 &sensor_dev_attr_fan4_div.dev_attr.attr,
1170 &sensor_dev_attr_fan4_alarm.dev_attr.attr,
1171 &sensor_dev_attr_pwm4.dev_attr.attr,
1172 &sensor_dev_attr_pwm4_mode.dev_attr.attr,
1173 NULL
1174 }, {
1175 &sensor_dev_attr_fan5_input.dev_attr.attr,
1176 &sensor_dev_attr_fan5_min.dev_attr.attr,
1177 &sensor_dev_attr_fan5_div.dev_attr.attr,
1178 &sensor_dev_attr_fan5_alarm.dev_attr.attr,
1179 &sensor_dev_attr_pwm5.dev_attr.attr,
1180 &sensor_dev_attr_pwm5_mode.dev_attr.attr,
1181 NULL
1182 }, {
1183 &sensor_dev_attr_fan6_input.dev_attr.attr,
1184 &sensor_dev_attr_fan6_min.dev_attr.attr,
1185 &sensor_dev_attr_fan6_div.dev_attr.attr,
1186 &sensor_dev_attr_fan6_alarm.dev_attr.attr,
1187 &sensor_dev_attr_pwm6.dev_attr.attr,
1188 &sensor_dev_attr_pwm6_mode.dev_attr.attr,
1189 NULL
1190 }, {
1191 &sensor_dev_attr_fan7_input.dev_attr.attr,
1192 &sensor_dev_attr_fan7_min.dev_attr.attr,
1193 &sensor_dev_attr_fan7_div.dev_attr.attr,
1194 &sensor_dev_attr_fan7_alarm.dev_attr.attr,
1195 &sensor_dev_attr_pwm7.dev_attr.attr,
1196 &sensor_dev_attr_pwm7_mode.dev_attr.attr,
1197 NULL
1198 }
1199 };
1200
1201 static const struct attribute_group w83792d_group_fan[4] = {
1202 { .attrs = w83792d_attributes_fan[0] },
1203 { .attrs = w83792d_attributes_fan[1] },
1204 { .attrs = w83792d_attributes_fan[2] },
1205 { .attrs = w83792d_attributes_fan[3] },
1206 };
1207
1208 static struct attribute *w83792d_attributes[] = {
1209 &sensor_dev_attr_in0_input.dev_attr.attr,
1210 &sensor_dev_attr_in0_max.dev_attr.attr,
1211 &sensor_dev_attr_in0_min.dev_attr.attr,
1212 &sensor_dev_attr_in1_input.dev_attr.attr,
1213 &sensor_dev_attr_in1_max.dev_attr.attr,
1214 &sensor_dev_attr_in1_min.dev_attr.attr,
1215 &sensor_dev_attr_in2_input.dev_attr.attr,
1216 &sensor_dev_attr_in2_max.dev_attr.attr,
1217 &sensor_dev_attr_in2_min.dev_attr.attr,
1218 &sensor_dev_attr_in3_input.dev_attr.attr,
1219 &sensor_dev_attr_in3_max.dev_attr.attr,
1220 &sensor_dev_attr_in3_min.dev_attr.attr,
1221 &sensor_dev_attr_in4_input.dev_attr.attr,
1222 &sensor_dev_attr_in4_max.dev_attr.attr,
1223 &sensor_dev_attr_in4_min.dev_attr.attr,
1224 &sensor_dev_attr_in5_input.dev_attr.attr,
1225 &sensor_dev_attr_in5_max.dev_attr.attr,
1226 &sensor_dev_attr_in5_min.dev_attr.attr,
1227 &sensor_dev_attr_in6_input.dev_attr.attr,
1228 &sensor_dev_attr_in6_max.dev_attr.attr,
1229 &sensor_dev_attr_in6_min.dev_attr.attr,
1230 &sensor_dev_attr_in7_input.dev_attr.attr,
1231 &sensor_dev_attr_in7_max.dev_attr.attr,
1232 &sensor_dev_attr_in7_min.dev_attr.attr,
1233 &sensor_dev_attr_in8_input.dev_attr.attr,
1234 &sensor_dev_attr_in8_max.dev_attr.attr,
1235 &sensor_dev_attr_in8_min.dev_attr.attr,
1236 &sensor_dev_attr_in0_alarm.dev_attr.attr,
1237 &sensor_dev_attr_in1_alarm.dev_attr.attr,
1238 &sensor_dev_attr_in2_alarm.dev_attr.attr,
1239 &sensor_dev_attr_in3_alarm.dev_attr.attr,
1240 &sensor_dev_attr_in4_alarm.dev_attr.attr,
1241 &sensor_dev_attr_in5_alarm.dev_attr.attr,
1242 &sensor_dev_attr_in6_alarm.dev_attr.attr,
1243 &sensor_dev_attr_in7_alarm.dev_attr.attr,
1244 &sensor_dev_attr_in8_alarm.dev_attr.attr,
1245 &sensor_dev_attr_temp1_input.dev_attr.attr,
1246 &sensor_dev_attr_temp1_max.dev_attr.attr,
1247 &sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
1248 &sensor_dev_attr_temp2_input.dev_attr.attr,
1249 &sensor_dev_attr_temp2_max.dev_attr.attr,
1250 &sensor_dev_attr_temp2_max_hyst.dev_attr.attr,
1251 &sensor_dev_attr_temp3_input.dev_attr.attr,
1252 &sensor_dev_attr_temp3_max.dev_attr.attr,
1253 &sensor_dev_attr_temp3_max_hyst.dev_attr.attr,
1254 &sensor_dev_attr_temp1_alarm.dev_attr.attr,
1255 &sensor_dev_attr_temp2_alarm.dev_attr.attr,
1256 &sensor_dev_attr_temp3_alarm.dev_attr.attr,
1257 &sensor_dev_attr_pwm1.dev_attr.attr,
1258 &sensor_dev_attr_pwm1_mode.dev_attr.attr,
1259 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
1260 &sensor_dev_attr_pwm2.dev_attr.attr,
1261 &sensor_dev_attr_pwm2_mode.dev_attr.attr,
1262 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
1263 &sensor_dev_attr_pwm3.dev_attr.attr,
1264 &sensor_dev_attr_pwm3_mode.dev_attr.attr,
1265 &sensor_dev_attr_pwm3_enable.dev_attr.attr,
1266 &dev_attr_alarms.attr,
1267 &dev_attr_intrusion0_alarm.attr,
1268 &sensor_dev_attr_tolerance1.dev_attr.attr,
1269 &sensor_dev_attr_thermal_cruise1.dev_attr.attr,
1270 &sensor_dev_attr_tolerance2.dev_attr.attr,
1271 &sensor_dev_attr_thermal_cruise2.dev_attr.attr,
1272 &sensor_dev_attr_tolerance3.dev_attr.attr,
1273 &sensor_dev_attr_thermal_cruise3.dev_attr.attr,
1274 &sensor_dev_attr_sf2_point1_fan1.dev_attr.attr,
1275 &sensor_dev_attr_sf2_point2_fan1.dev_attr.attr,
1276 &sensor_dev_attr_sf2_point3_fan1.dev_attr.attr,
1277 &sensor_dev_attr_sf2_point4_fan1.dev_attr.attr,
1278 &sensor_dev_attr_sf2_point1_fan2.dev_attr.attr,
1279 &sensor_dev_attr_sf2_point2_fan2.dev_attr.attr,
1280 &sensor_dev_attr_sf2_point3_fan2.dev_attr.attr,
1281 &sensor_dev_attr_sf2_point4_fan2.dev_attr.attr,
1282 &sensor_dev_attr_sf2_point1_fan3.dev_attr.attr,
1283 &sensor_dev_attr_sf2_point2_fan3.dev_attr.attr,
1284 &sensor_dev_attr_sf2_point3_fan3.dev_attr.attr,
1285 &sensor_dev_attr_sf2_point4_fan3.dev_attr.attr,
1286 &sensor_dev_attr_sf2_level1_fan1.dev_attr.attr,
1287 &sensor_dev_attr_sf2_level2_fan1.dev_attr.attr,
1288 &sensor_dev_attr_sf2_level3_fan1.dev_attr.attr,
1289 &sensor_dev_attr_sf2_level1_fan2.dev_attr.attr,
1290 &sensor_dev_attr_sf2_level2_fan2.dev_attr.attr,
1291 &sensor_dev_attr_sf2_level3_fan2.dev_attr.attr,
1292 &sensor_dev_attr_sf2_level1_fan3.dev_attr.attr,
1293 &sensor_dev_attr_sf2_level2_fan3.dev_attr.attr,
1294 &sensor_dev_attr_sf2_level3_fan3.dev_attr.attr,
1295 &sensor_dev_attr_fan1_input.dev_attr.attr,
1296 &sensor_dev_attr_fan1_min.dev_attr.attr,
1297 &sensor_dev_attr_fan1_div.dev_attr.attr,
1298 &sensor_dev_attr_fan1_alarm.dev_attr.attr,
1299 &sensor_dev_attr_fan2_input.dev_attr.attr,
1300 &sensor_dev_attr_fan2_min.dev_attr.attr,
1301 &sensor_dev_attr_fan2_div.dev_attr.attr,
1302 &sensor_dev_attr_fan2_alarm.dev_attr.attr,
1303 &sensor_dev_attr_fan3_input.dev_attr.attr,
1304 &sensor_dev_attr_fan3_min.dev_attr.attr,
1305 &sensor_dev_attr_fan3_div.dev_attr.attr,
1306 &sensor_dev_attr_fan3_alarm.dev_attr.attr,
1307 NULL
1308 };
1309
1310 static const struct attribute_group w83792d_group = {
1311 .attrs = w83792d_attributes,
1312 };
1313
1314 /* Return 0 if detection is successful, -ENODEV otherwise */
1315 static int
1316 w83792d_detect(struct i2c_client *client, struct i2c_board_info *info)
1317 {
1318 struct i2c_adapter *adapter = client->adapter;
1319 int val1, val2;
1320 unsigned short address = client->addr;
1321
1322 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
1323 return -ENODEV;
1324
1325 if (w83792d_read_value(client, W83792D_REG_CONFIG) & 0x80)
1326 return -ENODEV;
1327
1328 val1 = w83792d_read_value(client, W83792D_REG_BANK);
1329 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN);
1330 /* Check for Winbond ID if in bank 0 */
1331 if (!(val1 & 0x07)) { /* is Bank0 */
1332 if ((!(val1 & 0x80) && val2 != 0xa3) ||
1333 ((val1 & 0x80) && val2 != 0x5c))
1334 return -ENODEV;
1335 }
1336 /*
1337 * If Winbond chip, address of chip and W83792D_REG_I2C_ADDR
1338 * should match
1339 */
1340 if (w83792d_read_value(client, W83792D_REG_I2C_ADDR) != address)
1341 return -ENODEV;
1342
1343 /* Put it now into bank 0 and Vendor ID High Byte */
1344 w83792d_write_value(client,
1345 W83792D_REG_BANK,
1346 (w83792d_read_value(client,
1347 W83792D_REG_BANK) & 0x78) | 0x80);
1348
1349 /* Determine the chip type. */
1350 val1 = w83792d_read_value(client, W83792D_REG_WCHIPID);
1351 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN);
1352 if (val1 != 0x7a || val2 != 0x5c)
1353 return -ENODEV;
1354
1355 strlcpy(info->type, "w83792d", I2C_NAME_SIZE);
1356
1357 return 0;
1358 }
1359
1360 static int
1361 w83792d_probe(struct i2c_client *client)
1362 {
1363 struct w83792d_data *data;
1364 struct device *dev = &client->dev;
1365 int i, val1, err;
1366
1367 data = devm_kzalloc(dev, sizeof(struct w83792d_data), GFP_KERNEL);
1368 if (!data)
1369 return -ENOMEM;
1370
1371 i2c_set_clientdata(client, data);
1372 mutex_init(&data->update_lock);
1373
1374 err = w83792d_detect_subclients(client);
1375 if (err)
1376 return err;
1377
1378 /* Initialize the chip */
1379 w83792d_init_client(client);
1380
1381 /* A few vars need to be filled upon startup */
1382 for (i = 0; i < 7; i++) {
1383 data->fan_min[i] = w83792d_read_value(client,
1384 W83792D_REG_FAN_MIN[i]);
1385 }
1386
1387 /* Register sysfs hooks */
1388 err = sysfs_create_group(&dev->kobj, &w83792d_group);
1389 if (err)
1390 return err;
1391
1392 /*
1393 * Read GPIO enable register to check if pins for fan 4,5 are used as
1394 * GPIO
1395 */
1396 val1 = w83792d_read_value(client, W83792D_REG_GPIO_EN);
1397
1398 if (!(val1 & 0x40)) {
1399 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[0]);
1400 if (err)
1401 goto exit_remove_files;
1402 }
1403
1404 if (!(val1 & 0x20)) {
1405 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[1]);
1406 if (err)
1407 goto exit_remove_files;
1408 }
1409
1410 val1 = w83792d_read_value(client, W83792D_REG_PIN);
1411 if (val1 & 0x40) {
1412 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[2]);
1413 if (err)
1414 goto exit_remove_files;
1415 }
1416
1417 if (val1 & 0x04) {
1418 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[3]);
1419 if (err)
1420 goto exit_remove_files;
1421 }
1422
1423 data->hwmon_dev = hwmon_device_register(dev);
1424 if (IS_ERR(data->hwmon_dev)) {
1425 err = PTR_ERR(data->hwmon_dev);
1426 goto exit_remove_files;
1427 }
1428
1429 return 0;
1430
1431 exit_remove_files:
1432 sysfs_remove_group(&dev->kobj, &w83792d_group);
1433 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++)
1434 sysfs_remove_group(&dev->kobj, &w83792d_group_fan[i]);
1435 return err;
1436 }
1437
1438 static int
1439 w83792d_remove(struct i2c_client *client)
1440 {
1441 struct w83792d_data *data = i2c_get_clientdata(client);
1442 int i;
1443
1444 hwmon_device_unregister(data->hwmon_dev);
1445 sysfs_remove_group(&client->dev.kobj, &w83792d_group);
1446 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++)
1447 sysfs_remove_group(&client->dev.kobj,
1448 &w83792d_group_fan[i]);
1449
1450 return 0;
1451 }
1452
1453 static void
1454 w83792d_init_client(struct i2c_client *client)
1455 {
1456 u8 temp2_cfg, temp3_cfg, vid_in_b;
1457
1458 if (init)
1459 w83792d_write_value(client, W83792D_REG_CONFIG, 0x80);
1460
1461 /*
1462 * Clear the bit6 of W83792D_REG_VID_IN_B(set it into 0):
1463 * W83792D_REG_VID_IN_B bit6 = 0: the high/low limit of
1464 * vin0/vin1 can be modified by user;
1465 * W83792D_REG_VID_IN_B bit6 = 1: the high/low limit of
1466 * vin0/vin1 auto-updated, can NOT be modified by user.
1467 */
1468 vid_in_b = w83792d_read_value(client, W83792D_REG_VID_IN_B);
1469 w83792d_write_value(client, W83792D_REG_VID_IN_B,
1470 vid_in_b & 0xbf);
1471
1472 temp2_cfg = w83792d_read_value(client, W83792D_REG_TEMP2_CONFIG);
1473 temp3_cfg = w83792d_read_value(client, W83792D_REG_TEMP3_CONFIG);
1474 w83792d_write_value(client, W83792D_REG_TEMP2_CONFIG,
1475 temp2_cfg & 0xe6);
1476 w83792d_write_value(client, W83792D_REG_TEMP3_CONFIG,
1477 temp3_cfg & 0xe6);
1478
1479 /* Start monitoring */
1480 w83792d_write_value(client, W83792D_REG_CONFIG,
1481 (w83792d_read_value(client,
1482 W83792D_REG_CONFIG) & 0xf7)
1483 | 0x01);
1484 }
1485
1486 static struct w83792d_data *w83792d_update_device(struct device *dev)
1487 {
1488 struct i2c_client *client = to_i2c_client(dev);
1489 struct w83792d_data *data = i2c_get_clientdata(client);
1490 int i, j;
1491 u8 reg_array_tmp[4], reg_tmp;
1492
1493 mutex_lock(&data->update_lock);
1494
1495 if (time_after
1496 (jiffies - data->last_updated, (unsigned long) (HZ * 3))
1497 || time_before(jiffies, data->last_updated) || !data->valid) {
1498 dev_dbg(dev, "Starting device update\n");
1499
1500 /* Update the voltages measured value and limits */
1501 for (i = 0; i < 9; i++) {
1502 data->in[i] = w83792d_read_value(client,
1503 W83792D_REG_IN[i]);
1504 data->in_max[i] = w83792d_read_value(client,
1505 W83792D_REG_IN_MAX[i]);
1506 data->in_min[i] = w83792d_read_value(client,
1507 W83792D_REG_IN_MIN[i]);
1508 }
1509 data->low_bits = w83792d_read_value(client,
1510 W83792D_REG_LOW_BITS1) +
1511 (w83792d_read_value(client,
1512 W83792D_REG_LOW_BITS2) << 8);
1513 for (i = 0; i < 7; i++) {
1514 /* Update the Fan measured value and limits */
1515 data->fan[i] = w83792d_read_value(client,
1516 W83792D_REG_FAN[i]);
1517 data->fan_min[i] = w83792d_read_value(client,
1518 W83792D_REG_FAN_MIN[i]);
1519 /* Update the PWM/DC Value and PWM/DC flag */
1520 data->pwm[i] = w83792d_read_value(client,
1521 W83792D_REG_PWM[i]);
1522 }
1523
1524 reg_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG);
1525 data->pwmenable[0] = reg_tmp & 0x03;
1526 data->pwmenable[1] = (reg_tmp>>2) & 0x03;
1527 data->pwmenable[2] = (reg_tmp>>4) & 0x03;
1528
1529 for (i = 0; i < 3; i++) {
1530 data->temp1[i] = w83792d_read_value(client,
1531 W83792D_REG_TEMP1[i]);
1532 }
1533 for (i = 0; i < 2; i++) {
1534 for (j = 0; j < 6; j++) {
1535 data->temp_add[i][j] = w83792d_read_value(
1536 client, W83792D_REG_TEMP_ADD[i][j]);
1537 }
1538 }
1539
1540 /* Update the Fan Divisor */
1541 for (i = 0; i < 4; i++) {
1542 reg_array_tmp[i] = w83792d_read_value(client,
1543 W83792D_REG_FAN_DIV[i]);
1544 }
1545 data->fan_div[0] = reg_array_tmp[0] & 0x07;
1546 data->fan_div[1] = (reg_array_tmp[0] >> 4) & 0x07;
1547 data->fan_div[2] = reg_array_tmp[1] & 0x07;
1548 data->fan_div[3] = (reg_array_tmp[1] >> 4) & 0x07;
1549 data->fan_div[4] = reg_array_tmp[2] & 0x07;
1550 data->fan_div[5] = (reg_array_tmp[2] >> 4) & 0x07;
1551 data->fan_div[6] = reg_array_tmp[3] & 0x07;
1552
1553 /* Update the realtime status */
1554 data->alarms = w83792d_read_value(client, W83792D_REG_ALARM1) +
1555 (w83792d_read_value(client, W83792D_REG_ALARM2) << 8) +
1556 (w83792d_read_value(client, W83792D_REG_ALARM3) << 16);
1557
1558 /* Update CaseOpen status and it's CLR_CHS. */
1559 data->chassis = (w83792d_read_value(client,
1560 W83792D_REG_CHASSIS) >> 5) & 0x01;
1561
1562 /* Update Thermal Cruise/Smart Fan I target value */
1563 for (i = 0; i < 3; i++) {
1564 data->thermal_cruise[i] =
1565 w83792d_read_value(client,
1566 W83792D_REG_THERMAL[i]) & 0x7f;
1567 }
1568
1569 /* Update Smart Fan I/II tolerance */
1570 reg_tmp = w83792d_read_value(client, W83792D_REG_TOLERANCE[0]);
1571 data->tolerance[0] = reg_tmp & 0x0f;
1572 data->tolerance[1] = (reg_tmp >> 4) & 0x0f;
1573 data->tolerance[2] = w83792d_read_value(client,
1574 W83792D_REG_TOLERANCE[2]) & 0x0f;
1575
1576 /* Update Smart Fan II temperature points */
1577 for (i = 0; i < 3; i++) {
1578 for (j = 0; j < 4; j++) {
1579 data->sf2_points[i][j]
1580 = w83792d_read_value(client,
1581 W83792D_REG_POINTS[i][j]) & 0x7f;
1582 }
1583 }
1584
1585 /* Update Smart Fan II duty cycle levels */
1586 for (i = 0; i < 3; i++) {
1587 reg_tmp = w83792d_read_value(client,
1588 W83792D_REG_LEVELS[i][0]);
1589 data->sf2_levels[i][0] = reg_tmp & 0x0f;
1590 data->sf2_levels[i][1] = (reg_tmp >> 4) & 0x0f;
1591 reg_tmp = w83792d_read_value(client,
1592 W83792D_REG_LEVELS[i][2]);
1593 data->sf2_levels[i][2] = (reg_tmp >> 4) & 0x0f;
1594 data->sf2_levels[i][3] = reg_tmp & 0x0f;
1595 }
1596
1597 data->last_updated = jiffies;
1598 data->valid = 1;
1599 }
1600
1601 mutex_unlock(&data->update_lock);
1602
1603 #ifdef DEBUG
1604 w83792d_print_debug(data, dev);
1605 #endif
1606
1607 return data;
1608 }
1609
1610 #ifdef DEBUG
1611 static void w83792d_print_debug(struct w83792d_data *data, struct device *dev)
1612 {
1613 int i = 0, j = 0;
1614 dev_dbg(dev, "==========The following is the debug message...========\n");
1615 dev_dbg(dev, "9 set of Voltages: =====>\n");
1616 for (i = 0; i < 9; i++) {
1617 dev_dbg(dev, "vin[%d] is: 0x%x\n", i, data->in[i]);
1618 dev_dbg(dev, "vin[%d] max is: 0x%x\n", i, data->in_max[i]);
1619 dev_dbg(dev, "vin[%d] min is: 0x%x\n", i, data->in_min[i]);
1620 }
1621 dev_dbg(dev, "Low Bit1 is: 0x%x\n", data->low_bits & 0xff);
1622 dev_dbg(dev, "Low Bit2 is: 0x%x\n", data->low_bits >> 8);
1623 dev_dbg(dev, "7 set of Fan Counts and Duty Cycles: =====>\n");
1624 for (i = 0; i < 7; i++) {
1625 dev_dbg(dev, "fan[%d] is: 0x%x\n", i, data->fan[i]);
1626 dev_dbg(dev, "fan[%d] min is: 0x%x\n", i, data->fan_min[i]);
1627 dev_dbg(dev, "pwm[%d] is: 0x%x\n", i, data->pwm[i]);
1628 }
1629 dev_dbg(dev, "3 set of Temperatures: =====>\n");
1630 for (i = 0; i < 3; i++)
1631 dev_dbg(dev, "temp1[%d] is: 0x%x\n", i, data->temp1[i]);
1632
1633 for (i = 0; i < 2; i++) {
1634 for (j = 0; j < 6; j++) {
1635 dev_dbg(dev, "temp_add[%d][%d] is: 0x%x\n", i, j,
1636 data->temp_add[i][j]);
1637 }
1638 }
1639
1640 for (i = 0; i < 7; i++)
1641 dev_dbg(dev, "fan_div[%d] is: 0x%x\n", i, data->fan_div[i]);
1642
1643 dev_dbg(dev, "==========End of the debug message...================\n");
1644 dev_dbg(dev, "\n");
1645 }
1646 #endif
1647
1648 module_i2c_driver(w83792d_driver);
1649
1650 MODULE_AUTHOR("Shane Huang (Winbond)");
1651 MODULE_DESCRIPTION("W83792AD/D driver for linux-2.6");
1652 MODULE_LICENSE("GPL");
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