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Merge branch 'for-upstream/mali-dp' of git://linux-arm.org/linux-ld into drm-fixes
[mirror_ubuntu-bionic-kernel.git] / drivers / hwmon / w83792d.c
1 /*
2 * w83792d.c - Part of lm_sensors, Linux kernel modules for hardware
3 * monitoring
4 * Copyright (C) 2004, 2005 Winbond Electronics Corp.
5 * Shane Huang,
6 * Rudolf Marek <r.marek@assembler.cz>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 *
22 * Note:
23 * 1. This driver is only for 2.6 kernel, 2.4 kernel need a different driver.
24 * 2. This driver is only for Winbond W83792D C version device, there
25 * are also some motherboards with B version W83792D device. The
26 * calculation method to in6-in7(measured value, limits) is a little
27 * different between C and B version. C or B version can be identified
28 * by CR[0x49h].
29 */
30
31 /*
32 * Supports following chips:
33 *
34 * Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA
35 * w83792d 9 7 7 3 0x7a 0x5ca3 yes no
36 */
37
38 #include <linux/module.h>
39 #include <linux/init.h>
40 #include <linux/slab.h>
41 #include <linux/i2c.h>
42 #include <linux/hwmon.h>
43 #include <linux/hwmon-sysfs.h>
44 #include <linux/err.h>
45 #include <linux/mutex.h>
46 #include <linux/sysfs.h>
47 #include <linux/jiffies.h>
48
49 /* Addresses to scan */
50 static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f,
51 I2C_CLIENT_END };
52
53 /* Insmod parameters */
54
55 static unsigned short force_subclients[4];
56 module_param_array(force_subclients, short, NULL, 0);
57 MODULE_PARM_DESC(force_subclients,
58 "List of subclient addresses: {bus, clientaddr, subclientaddr1, subclientaddr2}");
59
60 static bool init;
61 module_param(init, bool, 0);
62 MODULE_PARM_DESC(init, "Set to one to force chip initialization");
63
64 /* The W83792D registers */
65 static const u8 W83792D_REG_IN[9] = {
66 0x20, /* Vcore A in DataSheet */
67 0x21, /* Vcore B in DataSheet */
68 0x22, /* VIN0 in DataSheet */
69 0x23, /* VIN1 in DataSheet */
70 0x24, /* VIN2 in DataSheet */
71 0x25, /* VIN3 in DataSheet */
72 0x26, /* 5VCC in DataSheet */
73 0xB0, /* 5VSB in DataSheet */
74 0xB1 /* VBAT in DataSheet */
75 };
76 #define W83792D_REG_LOW_BITS1 0x3E /* Low Bits I in DataSheet */
77 #define W83792D_REG_LOW_BITS2 0x3F /* Low Bits II in DataSheet */
78 static const u8 W83792D_REG_IN_MAX[9] = {
79 0x2B, /* Vcore A High Limit in DataSheet */
80 0x2D, /* Vcore B High Limit in DataSheet */
81 0x2F, /* VIN0 High Limit in DataSheet */
82 0x31, /* VIN1 High Limit in DataSheet */
83 0x33, /* VIN2 High Limit in DataSheet */
84 0x35, /* VIN3 High Limit in DataSheet */
85 0x37, /* 5VCC High Limit in DataSheet */
86 0xB4, /* 5VSB High Limit in DataSheet */
87 0xB6 /* VBAT High Limit in DataSheet */
88 };
89 static const u8 W83792D_REG_IN_MIN[9] = {
90 0x2C, /* Vcore A Low Limit in DataSheet */
91 0x2E, /* Vcore B Low Limit in DataSheet */
92 0x30, /* VIN0 Low Limit in DataSheet */
93 0x32, /* VIN1 Low Limit in DataSheet */
94 0x34, /* VIN2 Low Limit in DataSheet */
95 0x36, /* VIN3 Low Limit in DataSheet */
96 0x38, /* 5VCC Low Limit in DataSheet */
97 0xB5, /* 5VSB Low Limit in DataSheet */
98 0xB7 /* VBAT Low Limit in DataSheet */
99 };
100 static const u8 W83792D_REG_FAN[7] = {
101 0x28, /* FAN 1 Count in DataSheet */
102 0x29, /* FAN 2 Count in DataSheet */
103 0x2A, /* FAN 3 Count in DataSheet */
104 0xB8, /* FAN 4 Count in DataSheet */
105 0xB9, /* FAN 5 Count in DataSheet */
106 0xBA, /* FAN 6 Count in DataSheet */
107 0xBE /* FAN 7 Count in DataSheet */
108 };
109 static const u8 W83792D_REG_FAN_MIN[7] = {
110 0x3B, /* FAN 1 Count Low Limit in DataSheet */
111 0x3C, /* FAN 2 Count Low Limit in DataSheet */
112 0x3D, /* FAN 3 Count Low Limit in DataSheet */
113 0xBB, /* FAN 4 Count Low Limit in DataSheet */
114 0xBC, /* FAN 5 Count Low Limit in DataSheet */
115 0xBD, /* FAN 6 Count Low Limit in DataSheet */
116 0xBF /* FAN 7 Count Low Limit in DataSheet */
117 };
118 #define W83792D_REG_FAN_CFG 0x84 /* FAN Configuration in DataSheet */
119 static const u8 W83792D_REG_FAN_DIV[4] = {
120 0x47, /* contains FAN2 and FAN1 Divisor */
121 0x5B, /* contains FAN4 and FAN3 Divisor */
122 0x5C, /* contains FAN6 and FAN5 Divisor */
123 0x9E /* contains FAN7 Divisor. */
124 };
125 static const u8 W83792D_REG_PWM[7] = {
126 0x81, /* FAN 1 Duty Cycle, be used to control */
127 0x83, /* FAN 2 Duty Cycle, be used to control */
128 0x94, /* FAN 3 Duty Cycle, be used to control */
129 0xA3, /* FAN 4 Duty Cycle, be used to control */
130 0xA4, /* FAN 5 Duty Cycle, be used to control */
131 0xA5, /* FAN 6 Duty Cycle, be used to control */
132 0xA6 /* FAN 7 Duty Cycle, be used to control */
133 };
134 #define W83792D_REG_BANK 0x4E
135 #define W83792D_REG_TEMP2_CONFIG 0xC2
136 #define W83792D_REG_TEMP3_CONFIG 0xCA
137
138 static const u8 W83792D_REG_TEMP1[3] = {
139 0x27, /* TEMP 1 in DataSheet */
140 0x39, /* TEMP 1 Over in DataSheet */
141 0x3A, /* TEMP 1 Hyst in DataSheet */
142 };
143
144 static const u8 W83792D_REG_TEMP_ADD[2][6] = {
145 { 0xC0, /* TEMP 2 in DataSheet */
146 0xC1, /* TEMP 2(0.5 deg) in DataSheet */
147 0xC5, /* TEMP 2 Over High part in DataSheet */
148 0xC6, /* TEMP 2 Over Low part in DataSheet */
149 0xC3, /* TEMP 2 Thyst High part in DataSheet */
150 0xC4 }, /* TEMP 2 Thyst Low part in DataSheet */
151 { 0xC8, /* TEMP 3 in DataSheet */
152 0xC9, /* TEMP 3(0.5 deg) in DataSheet */
153 0xCD, /* TEMP 3 Over High part in DataSheet */
154 0xCE, /* TEMP 3 Over Low part in DataSheet */
155 0xCB, /* TEMP 3 Thyst High part in DataSheet */
156 0xCC } /* TEMP 3 Thyst Low part in DataSheet */
157 };
158
159 static const u8 W83792D_REG_THERMAL[3] = {
160 0x85, /* SmartFanI: Fan1 target value */
161 0x86, /* SmartFanI: Fan2 target value */
162 0x96 /* SmartFanI: Fan3 target value */
163 };
164
165 static const u8 W83792D_REG_TOLERANCE[3] = {
166 0x87, /* (bit3-0)SmartFan Fan1 tolerance */
167 0x87, /* (bit7-4)SmartFan Fan2 tolerance */
168 0x97 /* (bit3-0)SmartFan Fan3 tolerance */
169 };
170
171 static const u8 W83792D_REG_POINTS[3][4] = {
172 { 0x85, /* SmartFanII: Fan1 temp point 1 */
173 0xE3, /* SmartFanII: Fan1 temp point 2 */
174 0xE4, /* SmartFanII: Fan1 temp point 3 */
175 0xE5 }, /* SmartFanII: Fan1 temp point 4 */
176 { 0x86, /* SmartFanII: Fan2 temp point 1 */
177 0xE6, /* SmartFanII: Fan2 temp point 2 */
178 0xE7, /* SmartFanII: Fan2 temp point 3 */
179 0xE8 }, /* SmartFanII: Fan2 temp point 4 */
180 { 0x96, /* SmartFanII: Fan3 temp point 1 */
181 0xE9, /* SmartFanII: Fan3 temp point 2 */
182 0xEA, /* SmartFanII: Fan3 temp point 3 */
183 0xEB } /* SmartFanII: Fan3 temp point 4 */
184 };
185
186 static const u8 W83792D_REG_LEVELS[3][4] = {
187 { 0x88, /* (bit3-0) SmartFanII: Fan1 Non-Stop */
188 0x88, /* (bit7-4) SmartFanII: Fan1 Level 1 */
189 0xE0, /* (bit7-4) SmartFanII: Fan1 Level 2 */
190 0xE0 }, /* (bit3-0) SmartFanII: Fan1 Level 3 */
191 { 0x89, /* (bit3-0) SmartFanII: Fan2 Non-Stop */
192 0x89, /* (bit7-4) SmartFanII: Fan2 Level 1 */
193 0xE1, /* (bit7-4) SmartFanII: Fan2 Level 2 */
194 0xE1 }, /* (bit3-0) SmartFanII: Fan2 Level 3 */
195 { 0x98, /* (bit3-0) SmartFanII: Fan3 Non-Stop */
196 0x98, /* (bit7-4) SmartFanII: Fan3 Level 1 */
197 0xE2, /* (bit7-4) SmartFanII: Fan3 Level 2 */
198 0xE2 } /* (bit3-0) SmartFanII: Fan3 Level 3 */
199 };
200
201 #define W83792D_REG_GPIO_EN 0x1A
202 #define W83792D_REG_CONFIG 0x40
203 #define W83792D_REG_VID_FANDIV 0x47
204 #define W83792D_REG_CHIPID 0x49
205 #define W83792D_REG_WCHIPID 0x58
206 #define W83792D_REG_CHIPMAN 0x4F
207 #define W83792D_REG_PIN 0x4B
208 #define W83792D_REG_I2C_SUBADDR 0x4A
209
210 #define W83792D_REG_ALARM1 0xA9 /* realtime status register1 */
211 #define W83792D_REG_ALARM2 0xAA /* realtime status register2 */
212 #define W83792D_REG_ALARM3 0xAB /* realtime status register3 */
213 #define W83792D_REG_CHASSIS 0x42 /* Bit 5: Case Open status bit */
214 #define W83792D_REG_CHASSIS_CLR 0x44 /* Bit 7: Case Open CLR_CHS/Reset bit */
215
216 /* control in0/in1 's limit modifiability */
217 #define W83792D_REG_VID_IN_B 0x17
218
219 #define W83792D_REG_VBAT 0x5D
220 #define W83792D_REG_I2C_ADDR 0x48
221
222 /*
223 * Conversions. Rounding and limit checking is only done on the TO_REG
224 * variants. Note that you should be a bit careful with which arguments
225 * these macros are called: arguments may be evaluated more than once.
226 * Fixing this is just not worth it.
227 */
228 #define IN_FROM_REG(nr, val) (((nr) <= 1) ? ((val) * 2) : \
229 ((((nr) == 6) || ((nr) == 7)) ? ((val) * 6) : ((val) * 4)))
230 #define IN_TO_REG(nr, val) (((nr) <= 1) ? ((val) / 2) : \
231 ((((nr) == 6) || ((nr) == 7)) ? ((val) / 6) : ((val) / 4)))
232
233 static inline u8
234 FAN_TO_REG(long rpm, int div)
235 {
236 if (rpm == 0)
237 return 255;
238 rpm = clamp_val(rpm, 1, 1000000);
239 return clamp_val((1350000 + rpm * div / 2) / (rpm * div), 1, 254);
240 }
241
242 #define FAN_FROM_REG(val, div) ((val) == 0 ? -1 : \
243 ((val) == 255 ? 0 : \
244 1350000 / ((val) * (div))))
245
246 /* for temp1 */
247 #define TEMP1_TO_REG(val) (clamp_val(((val) < 0 ? (val) + 0x100 * 1000 \
248 : (val)) / 1000, 0, 0xff))
249 #define TEMP1_FROM_REG(val) (((val) & 0x80 ? (val)-0x100 : (val)) * 1000)
250 /* for temp2 and temp3, because they need additional resolution */
251 #define TEMP_ADD_FROM_REG(val1, val2) \
252 ((((val1) & 0x80 ? (val1)-0x100 \
253 : (val1)) * 1000) + ((val2 & 0x80) ? 500 : 0))
254 #define TEMP_ADD_TO_REG_HIGH(val) \
255 (clamp_val(((val) < 0 ? (val) + 0x100 * 1000 : (val)) / 1000, 0, 0xff))
256 #define TEMP_ADD_TO_REG_LOW(val) ((val%1000) ? 0x80 : 0x00)
257
258 #define DIV_FROM_REG(val) (1 << (val))
259
260 static inline u8
261 DIV_TO_REG(long val)
262 {
263 int i;
264 val = clamp_val(val, 1, 128) >> 1;
265 for (i = 0; i < 7; i++) {
266 if (val == 0)
267 break;
268 val >>= 1;
269 }
270 return (u8)i;
271 }
272
273 struct w83792d_data {
274 struct device *hwmon_dev;
275
276 struct mutex update_lock;
277 char valid; /* !=0 if following fields are valid */
278 unsigned long last_updated; /* In jiffies */
279
280 /* array of 2 pointers to subclients */
281 struct i2c_client *lm75[2];
282
283 u8 in[9]; /* Register value */
284 u8 in_max[9]; /* Register value */
285 u8 in_min[9]; /* Register value */
286 u16 low_bits; /* Additional resolution to voltage in6-0 */
287 u8 fan[7]; /* Register value */
288 u8 fan_min[7]; /* Register value */
289 u8 temp1[3]; /* current, over, thyst */
290 u8 temp_add[2][6]; /* Register value */
291 u8 fan_div[7]; /* Register encoding, shifted right */
292 u8 pwm[7]; /* The 7 PWM outputs */
293 u8 pwmenable[3];
294 u32 alarms; /* realtime status register encoding,combined */
295 u8 chassis; /* Chassis status */
296 u8 thermal_cruise[3]; /* Smart FanI: Fan1,2,3 target value */
297 u8 tolerance[3]; /* Fan1,2,3 tolerance(Smart Fan I/II) */
298 u8 sf2_points[3][4]; /* Smart FanII: Fan1,2,3 temperature points */
299 u8 sf2_levels[3][4]; /* Smart FanII: Fan1,2,3 duty cycle levels */
300 };
301
302 static int w83792d_probe(struct i2c_client *client,
303 const struct i2c_device_id *id);
304 static int w83792d_detect(struct i2c_client *client,
305 struct i2c_board_info *info);
306 static int w83792d_remove(struct i2c_client *client);
307 static struct w83792d_data *w83792d_update_device(struct device *dev);
308
309 #ifdef DEBUG
310 static void w83792d_print_debug(struct w83792d_data *data, struct device *dev);
311 #endif
312
313 static void w83792d_init_client(struct i2c_client *client);
314
315 static const struct i2c_device_id w83792d_id[] = {
316 { "w83792d", 0 },
317 { }
318 };
319 MODULE_DEVICE_TABLE(i2c, w83792d_id);
320
321 static struct i2c_driver w83792d_driver = {
322 .class = I2C_CLASS_HWMON,
323 .driver = {
324 .name = "w83792d",
325 },
326 .probe = w83792d_probe,
327 .remove = w83792d_remove,
328 .id_table = w83792d_id,
329 .detect = w83792d_detect,
330 .address_list = normal_i2c,
331 };
332
333 static inline long in_count_from_reg(int nr, struct w83792d_data *data)
334 {
335 /* in7 and in8 do not have low bits, but the formula still works */
336 return (data->in[nr] << 2) | ((data->low_bits >> (2 * nr)) & 0x03);
337 }
338
339 /*
340 * The SMBus locks itself. The Winbond W83792D chip has a bank register,
341 * but the driver only accesses registers in bank 0, so we don't have
342 * to switch banks and lock access between switches.
343 */
344 static inline int w83792d_read_value(struct i2c_client *client, u8 reg)
345 {
346 return i2c_smbus_read_byte_data(client, reg);
347 }
348
349 static inline int
350 w83792d_write_value(struct i2c_client *client, u8 reg, u8 value)
351 {
352 return i2c_smbus_write_byte_data(client, reg, value);
353 }
354
355 /* following are the sysfs callback functions */
356 static ssize_t show_in(struct device *dev, struct device_attribute *attr,
357 char *buf)
358 {
359 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
360 int nr = sensor_attr->index;
361 struct w83792d_data *data = w83792d_update_device(dev);
362 return sprintf(buf, "%ld\n",
363 IN_FROM_REG(nr, in_count_from_reg(nr, data)));
364 }
365
366 #define show_in_reg(reg) \
367 static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
368 char *buf) \
369 { \
370 struct sensor_device_attribute *sensor_attr \
371 = to_sensor_dev_attr(attr); \
372 int nr = sensor_attr->index; \
373 struct w83792d_data *data = w83792d_update_device(dev); \
374 return sprintf(buf, "%ld\n", \
375 (long)(IN_FROM_REG(nr, data->reg[nr]) * 4)); \
376 }
377
378 show_in_reg(in_min);
379 show_in_reg(in_max);
380
381 #define store_in_reg(REG, reg) \
382 static ssize_t store_in_##reg(struct device *dev, \
383 struct device_attribute *attr, \
384 const char *buf, size_t count) \
385 { \
386 struct sensor_device_attribute *sensor_attr \
387 = to_sensor_dev_attr(attr); \
388 int nr = sensor_attr->index; \
389 struct i2c_client *client = to_i2c_client(dev); \
390 struct w83792d_data *data = i2c_get_clientdata(client); \
391 unsigned long val; \
392 int err = kstrtoul(buf, 10, &val); \
393 if (err) \
394 return err; \
395 mutex_lock(&data->update_lock); \
396 data->in_##reg[nr] = clamp_val(IN_TO_REG(nr, val) / 4, 0, 255); \
397 w83792d_write_value(client, W83792D_REG_IN_##REG[nr], \
398 data->in_##reg[nr]); \
399 mutex_unlock(&data->update_lock); \
400 \
401 return count; \
402 }
403 store_in_reg(MIN, min);
404 store_in_reg(MAX, max);
405
406 #define show_fan_reg(reg) \
407 static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
408 char *buf) \
409 { \
410 struct sensor_device_attribute *sensor_attr \
411 = to_sensor_dev_attr(attr); \
412 int nr = sensor_attr->index - 1; \
413 struct w83792d_data *data = w83792d_update_device(dev); \
414 return sprintf(buf, "%d\n", \
415 FAN_FROM_REG(data->reg[nr], DIV_FROM_REG(data->fan_div[nr]))); \
416 }
417
418 show_fan_reg(fan);
419 show_fan_reg(fan_min);
420
421 static ssize_t
422 store_fan_min(struct device *dev, struct device_attribute *attr,
423 const char *buf, size_t count)
424 {
425 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
426 int nr = sensor_attr->index - 1;
427 struct i2c_client *client = to_i2c_client(dev);
428 struct w83792d_data *data = i2c_get_clientdata(client);
429 unsigned long val;
430 int err;
431
432 err = kstrtoul(buf, 10, &val);
433 if (err)
434 return err;
435
436 mutex_lock(&data->update_lock);
437 data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
438 w83792d_write_value(client, W83792D_REG_FAN_MIN[nr],
439 data->fan_min[nr]);
440 mutex_unlock(&data->update_lock);
441
442 return count;
443 }
444
445 static ssize_t
446 show_fan_div(struct device *dev, struct device_attribute *attr,
447 char *buf)
448 {
449 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
450 int nr = sensor_attr->index;
451 struct w83792d_data *data = w83792d_update_device(dev);
452 return sprintf(buf, "%u\n", DIV_FROM_REG(data->fan_div[nr - 1]));
453 }
454
455 /*
456 * Note: we save and restore the fan minimum here, because its value is
457 * determined in part by the fan divisor. This follows the principle of
458 * least surprise; the user doesn't expect the fan minimum to change just
459 * because the divisor changed.
460 */
461 static ssize_t
462 store_fan_div(struct device *dev, struct device_attribute *attr,
463 const char *buf, size_t count)
464 {
465 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
466 int nr = sensor_attr->index - 1;
467 struct i2c_client *client = to_i2c_client(dev);
468 struct w83792d_data *data = i2c_get_clientdata(client);
469 unsigned long min;
470 /*u8 reg;*/
471 u8 fan_div_reg = 0;
472 u8 tmp_fan_div;
473 unsigned long val;
474 int err;
475
476 err = kstrtoul(buf, 10, &val);
477 if (err)
478 return err;
479
480 /* Save fan_min */
481 mutex_lock(&data->update_lock);
482 min = FAN_FROM_REG(data->fan_min[nr],
483 DIV_FROM_REG(data->fan_div[nr]));
484
485 data->fan_div[nr] = DIV_TO_REG(val);
486
487 fan_div_reg = w83792d_read_value(client, W83792D_REG_FAN_DIV[nr >> 1]);
488 fan_div_reg &= (nr & 0x01) ? 0x8f : 0xf8;
489 tmp_fan_div = (nr & 0x01) ? (((data->fan_div[nr]) << 4) & 0x70)
490 : ((data->fan_div[nr]) & 0x07);
491 w83792d_write_value(client, W83792D_REG_FAN_DIV[nr >> 1],
492 fan_div_reg | tmp_fan_div);
493
494 /* Restore fan_min */
495 data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
496 w83792d_write_value(client, W83792D_REG_FAN_MIN[nr], data->fan_min[nr]);
497 mutex_unlock(&data->update_lock);
498
499 return count;
500 }
501
502 /* read/write the temperature1, includes measured value and limits */
503
504 static ssize_t show_temp1(struct device *dev, struct device_attribute *attr,
505 char *buf)
506 {
507 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
508 int nr = sensor_attr->index;
509 struct w83792d_data *data = w83792d_update_device(dev);
510 return sprintf(buf, "%d\n", TEMP1_FROM_REG(data->temp1[nr]));
511 }
512
513 static ssize_t store_temp1(struct device *dev, struct device_attribute *attr,
514 const char *buf, size_t count)
515 {
516 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
517 int nr = sensor_attr->index;
518 struct i2c_client *client = to_i2c_client(dev);
519 struct w83792d_data *data = i2c_get_clientdata(client);
520 long val;
521 int err;
522
523 err = kstrtol(buf, 10, &val);
524 if (err)
525 return err;
526
527 mutex_lock(&data->update_lock);
528 data->temp1[nr] = TEMP1_TO_REG(val);
529 w83792d_write_value(client, W83792D_REG_TEMP1[nr],
530 data->temp1[nr]);
531 mutex_unlock(&data->update_lock);
532
533 return count;
534 }
535
536 /* read/write the temperature2-3, includes measured value and limits */
537
538 static ssize_t show_temp23(struct device *dev, struct device_attribute *attr,
539 char *buf)
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 w83792d_data *data = w83792d_update_device(dev);
546 return sprintf(buf, "%ld\n",
547 (long)TEMP_ADD_FROM_REG(data->temp_add[nr][index],
548 data->temp_add[nr][index+1]));
549 }
550
551 static ssize_t store_temp23(struct device *dev, struct device_attribute *attr,
552 const char *buf, size_t count)
553 {
554 struct sensor_device_attribute_2 *sensor_attr
555 = to_sensor_dev_attr_2(attr);
556 int nr = sensor_attr->nr;
557 int index = sensor_attr->index;
558 struct i2c_client *client = to_i2c_client(dev);
559 struct w83792d_data *data = i2c_get_clientdata(client);
560 long val;
561 int err;
562
563 err = kstrtol(buf, 10, &val);
564 if (err)
565 return err;
566
567 mutex_lock(&data->update_lock);
568 data->temp_add[nr][index] = TEMP_ADD_TO_REG_HIGH(val);
569 data->temp_add[nr][index+1] = TEMP_ADD_TO_REG_LOW(val);
570 w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index],
571 data->temp_add[nr][index]);
572 w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index+1],
573 data->temp_add[nr][index+1]);
574 mutex_unlock(&data->update_lock);
575
576 return count;
577 }
578
579 /* get realtime status of all sensors items: voltage, temp, fan */
580 static ssize_t
581 alarms_show(struct device *dev, struct device_attribute *attr, char *buf)
582 {
583 struct w83792d_data *data = w83792d_update_device(dev);
584 return sprintf(buf, "%d\n", data->alarms);
585 }
586
587 static ssize_t show_alarm(struct device *dev,
588 struct device_attribute *attr, char *buf)
589 {
590 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
591 int nr = sensor_attr->index;
592 struct w83792d_data *data = w83792d_update_device(dev);
593 return sprintf(buf, "%d\n", (data->alarms >> nr) & 1);
594 }
595
596 static ssize_t
597 show_pwm(struct device *dev, struct device_attribute *attr,
598 char *buf)
599 {
600 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
601 int nr = sensor_attr->index;
602 struct w83792d_data *data = w83792d_update_device(dev);
603 return sprintf(buf, "%d\n", (data->pwm[nr] & 0x0f) << 4);
604 }
605
606 static ssize_t
607 show_pwmenable(struct device *dev, struct device_attribute *attr,
608 char *buf)
609 {
610 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
611 int nr = sensor_attr->index - 1;
612 struct w83792d_data *data = w83792d_update_device(dev);
613 long pwm_enable_tmp = 1;
614
615 switch (data->pwmenable[nr]) {
616 case 0:
617 pwm_enable_tmp = 1; /* manual mode */
618 break;
619 case 1:
620 pwm_enable_tmp = 3; /*thermal cruise/Smart Fan I */
621 break;
622 case 2:
623 pwm_enable_tmp = 2; /* Smart Fan II */
624 break;
625 }
626
627 return sprintf(buf, "%ld\n", pwm_enable_tmp);
628 }
629
630 static ssize_t
631 store_pwm(struct device *dev, struct device_attribute *attr,
632 const char *buf, size_t count)
633 {
634 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
635 int nr = sensor_attr->index;
636 struct i2c_client *client = to_i2c_client(dev);
637 struct w83792d_data *data = i2c_get_clientdata(client);
638 unsigned long val;
639 int err;
640
641 err = kstrtoul(buf, 10, &val);
642 if (err)
643 return err;
644 val = clamp_val(val, 0, 255) >> 4;
645
646 mutex_lock(&data->update_lock);
647 val |= w83792d_read_value(client, W83792D_REG_PWM[nr]) & 0xf0;
648 data->pwm[nr] = val;
649 w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]);
650 mutex_unlock(&data->update_lock);
651
652 return count;
653 }
654
655 static ssize_t
656 store_pwmenable(struct device *dev, struct device_attribute *attr,
657 const char *buf, size_t count)
658 {
659 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
660 int nr = sensor_attr->index - 1;
661 struct i2c_client *client = to_i2c_client(dev);
662 struct w83792d_data *data = i2c_get_clientdata(client);
663 u8 fan_cfg_tmp, cfg1_tmp, cfg2_tmp, cfg3_tmp, cfg4_tmp;
664 unsigned long val;
665 int err;
666
667 err = kstrtoul(buf, 10, &val);
668 if (err)
669 return err;
670
671 if (val < 1 || val > 3)
672 return -EINVAL;
673
674 mutex_lock(&data->update_lock);
675 switch (val) {
676 case 1:
677 data->pwmenable[nr] = 0; /* manual mode */
678 break;
679 case 2:
680 data->pwmenable[nr] = 2; /* Smart Fan II */
681 break;
682 case 3:
683 data->pwmenable[nr] = 1; /* thermal cruise/Smart Fan I */
684 break;
685 }
686 cfg1_tmp = data->pwmenable[0];
687 cfg2_tmp = (data->pwmenable[1]) << 2;
688 cfg3_tmp = (data->pwmenable[2]) << 4;
689 cfg4_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG) & 0xc0;
690 fan_cfg_tmp = ((cfg4_tmp | cfg3_tmp) | cfg2_tmp) | cfg1_tmp;
691 w83792d_write_value(client, W83792D_REG_FAN_CFG, fan_cfg_tmp);
692 mutex_unlock(&data->update_lock);
693
694 return count;
695 }
696
697 static ssize_t
698 show_pwm_mode(struct device *dev, struct device_attribute *attr,
699 char *buf)
700 {
701 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
702 int nr = sensor_attr->index;
703 struct w83792d_data *data = w83792d_update_device(dev);
704 return sprintf(buf, "%d\n", data->pwm[nr] >> 7);
705 }
706
707 static ssize_t
708 store_pwm_mode(struct device *dev, struct device_attribute *attr,
709 const char *buf, size_t count)
710 {
711 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
712 int nr = sensor_attr->index;
713 struct i2c_client *client = to_i2c_client(dev);
714 struct w83792d_data *data = i2c_get_clientdata(client);
715 unsigned long val;
716 int err;
717
718 err = kstrtoul(buf, 10, &val);
719 if (err)
720 return err;
721 if (val > 1)
722 return -EINVAL;
723
724 mutex_lock(&data->update_lock);
725 data->pwm[nr] = w83792d_read_value(client, W83792D_REG_PWM[nr]);
726 if (val) { /* PWM mode */
727 data->pwm[nr] |= 0x80;
728 } else { /* DC mode */
729 data->pwm[nr] &= 0x7f;
730 }
731 w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]);
732 mutex_unlock(&data->update_lock);
733
734 return count;
735 }
736
737 static ssize_t
738 intrusion0_alarm_show(struct device *dev, struct device_attribute *attr,
739 char *buf)
740 {
741 struct w83792d_data *data = w83792d_update_device(dev);
742 return sprintf(buf, "%d\n", data->chassis);
743 }
744
745 static ssize_t
746 intrusion0_alarm_store(struct device *dev, struct device_attribute *attr,
747 const char *buf, size_t count)
748 {
749 struct i2c_client *client = to_i2c_client(dev);
750 struct w83792d_data *data = i2c_get_clientdata(client);
751 unsigned long val;
752 u8 reg;
753
754 if (kstrtoul(buf, 10, &val) || val != 0)
755 return -EINVAL;
756
757 mutex_lock(&data->update_lock);
758 reg = w83792d_read_value(client, W83792D_REG_CHASSIS_CLR);
759 w83792d_write_value(client, W83792D_REG_CHASSIS_CLR, reg | 0x80);
760 data->valid = 0; /* Force cache refresh */
761 mutex_unlock(&data->update_lock);
762
763 return count;
764 }
765
766 /* For Smart Fan I / Thermal Cruise */
767 static ssize_t
768 show_thermal_cruise(struct device *dev, struct device_attribute *attr,
769 char *buf)
770 {
771 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
772 int nr = sensor_attr->index;
773 struct w83792d_data *data = w83792d_update_device(dev);
774 return sprintf(buf, "%ld\n", (long)data->thermal_cruise[nr-1]);
775 }
776
777 static ssize_t
778 store_thermal_cruise(struct device *dev, struct device_attribute *attr,
779 const char *buf, size_t count)
780 {
781 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
782 int nr = sensor_attr->index - 1;
783 struct i2c_client *client = to_i2c_client(dev);
784 struct w83792d_data *data = i2c_get_clientdata(client);
785 u8 target_tmp = 0, target_mask = 0;
786 unsigned long val;
787 int err;
788
789 err = kstrtoul(buf, 10, &val);
790 if (err)
791 return err;
792
793 target_tmp = val;
794 target_tmp = target_tmp & 0x7f;
795 mutex_lock(&data->update_lock);
796 target_mask = w83792d_read_value(client,
797 W83792D_REG_THERMAL[nr]) & 0x80;
798 data->thermal_cruise[nr] = clamp_val(target_tmp, 0, 255);
799 w83792d_write_value(client, W83792D_REG_THERMAL[nr],
800 (data->thermal_cruise[nr]) | target_mask);
801 mutex_unlock(&data->update_lock);
802
803 return count;
804 }
805
806 /* For Smart Fan I/Thermal Cruise and Smart Fan II */
807 static ssize_t
808 show_tolerance(struct device *dev, struct device_attribute *attr,
809 char *buf)
810 {
811 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
812 int nr = sensor_attr->index;
813 struct w83792d_data *data = w83792d_update_device(dev);
814 return sprintf(buf, "%ld\n", (long)data->tolerance[nr-1]);
815 }
816
817 static ssize_t
818 store_tolerance(struct device *dev, struct device_attribute *attr,
819 const char *buf, size_t count)
820 {
821 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
822 int nr = sensor_attr->index - 1;
823 struct i2c_client *client = to_i2c_client(dev);
824 struct w83792d_data *data = i2c_get_clientdata(client);
825 u8 tol_tmp, tol_mask;
826 unsigned long val;
827 int err;
828
829 err = kstrtoul(buf, 10, &val);
830 if (err)
831 return err;
832
833 mutex_lock(&data->update_lock);
834 tol_mask = w83792d_read_value(client,
835 W83792D_REG_TOLERANCE[nr]) & ((nr == 1) ? 0x0f : 0xf0);
836 tol_tmp = clamp_val(val, 0, 15);
837 tol_tmp &= 0x0f;
838 data->tolerance[nr] = tol_tmp;
839 if (nr == 1)
840 tol_tmp <<= 4;
841 w83792d_write_value(client, W83792D_REG_TOLERANCE[nr],
842 tol_mask | tol_tmp);
843 mutex_unlock(&data->update_lock);
844
845 return count;
846 }
847
848 /* For Smart Fan II */
849 static ssize_t
850 show_sf2_point(struct device *dev, struct device_attribute *attr,
851 char *buf)
852 {
853 struct sensor_device_attribute_2 *sensor_attr
854 = to_sensor_dev_attr_2(attr);
855 int nr = sensor_attr->nr;
856 int index = sensor_attr->index;
857 struct w83792d_data *data = w83792d_update_device(dev);
858 return sprintf(buf, "%ld\n", (long)data->sf2_points[index-1][nr-1]);
859 }
860
861 static ssize_t
862 store_sf2_point(struct device *dev, struct device_attribute *attr,
863 const char *buf, size_t count)
864 {
865 struct sensor_device_attribute_2 *sensor_attr
866 = to_sensor_dev_attr_2(attr);
867 int nr = sensor_attr->nr - 1;
868 int index = sensor_attr->index - 1;
869 struct i2c_client *client = to_i2c_client(dev);
870 struct w83792d_data *data = i2c_get_clientdata(client);
871 u8 mask_tmp = 0;
872 unsigned long val;
873 int err;
874
875 err = kstrtoul(buf, 10, &val);
876 if (err)
877 return err;
878
879 mutex_lock(&data->update_lock);
880 data->sf2_points[index][nr] = clamp_val(val, 0, 127);
881 mask_tmp = w83792d_read_value(client,
882 W83792D_REG_POINTS[index][nr]) & 0x80;
883 w83792d_write_value(client, W83792D_REG_POINTS[index][nr],
884 mask_tmp|data->sf2_points[index][nr]);
885 mutex_unlock(&data->update_lock);
886
887 return count;
888 }
889
890 static ssize_t
891 show_sf2_level(struct device *dev, struct device_attribute *attr,
892 char *buf)
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;
898 struct w83792d_data *data = w83792d_update_device(dev);
899 return sprintf(buf, "%d\n",
900 (((data->sf2_levels[index-1][nr]) * 100) / 15));
901 }
902
903 static ssize_t
904 store_sf2_level(struct device *dev, struct device_attribute *attr,
905 const char *buf, size_t count)
906 {
907 struct sensor_device_attribute_2 *sensor_attr
908 = to_sensor_dev_attr_2(attr);
909 int nr = sensor_attr->nr;
910 int index = sensor_attr->index - 1;
911 struct i2c_client *client = to_i2c_client(dev);
912 struct w83792d_data *data = i2c_get_clientdata(client);
913 u8 mask_tmp = 0, level_tmp = 0;
914 unsigned long val;
915 int err;
916
917 err = kstrtoul(buf, 10, &val);
918 if (err)
919 return err;
920
921 mutex_lock(&data->update_lock);
922 data->sf2_levels[index][nr] = clamp_val((val * 15) / 100, 0, 15);
923 mask_tmp = w83792d_read_value(client, W83792D_REG_LEVELS[index][nr])
924 & ((nr == 3) ? 0xf0 : 0x0f);
925 if (nr == 3)
926 level_tmp = data->sf2_levels[index][nr];
927 else
928 level_tmp = data->sf2_levels[index][nr] << 4;
929 w83792d_write_value(client, W83792D_REG_LEVELS[index][nr],
930 level_tmp | mask_tmp);
931 mutex_unlock(&data->update_lock);
932
933 return count;
934 }
935
936
937 static int
938 w83792d_detect_subclients(struct i2c_client *new_client)
939 {
940 int i, id, err;
941 int address = new_client->addr;
942 u8 val;
943 struct i2c_adapter *adapter = new_client->adapter;
944 struct w83792d_data *data = i2c_get_clientdata(new_client);
945
946 id = i2c_adapter_id(adapter);
947 if (force_subclients[0] == id && force_subclients[1] == address) {
948 for (i = 2; i <= 3; i++) {
949 if (force_subclients[i] < 0x48 ||
950 force_subclients[i] > 0x4f) {
951 dev_err(&new_client->dev,
952 "invalid subclient address %d; must be 0x48-0x4f\n",
953 force_subclients[i]);
954 err = -ENODEV;
955 goto ERROR_SC_0;
956 }
957 }
958 w83792d_write_value(new_client, W83792D_REG_I2C_SUBADDR,
959 (force_subclients[2] & 0x07) |
960 ((force_subclients[3] & 0x07) << 4));
961 }
962
963 val = w83792d_read_value(new_client, W83792D_REG_I2C_SUBADDR);
964 if (!(val & 0x08))
965 data->lm75[0] = i2c_new_dummy(adapter, 0x48 + (val & 0x7));
966 if (!(val & 0x80)) {
967 if ((data->lm75[0] != NULL) &&
968 ((val & 0x7) == ((val >> 4) & 0x7))) {
969 dev_err(&new_client->dev,
970 "duplicate addresses 0x%x, use force_subclient\n",
971 data->lm75[0]->addr);
972 err = -ENODEV;
973 goto ERROR_SC_1;
974 }
975 data->lm75[1] = i2c_new_dummy(adapter,
976 0x48 + ((val >> 4) & 0x7));
977 }
978
979 return 0;
980
981 /* Undo inits in case of errors */
982
983 ERROR_SC_1:
984 i2c_unregister_device(data->lm75[0]);
985 ERROR_SC_0:
986 return err;
987 }
988
989 static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0);
990 static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1);
991 static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2);
992 static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3);
993 static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 4);
994 static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 5);
995 static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 6);
996 static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 7);
997 static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_in, NULL, 8);
998 static SENSOR_DEVICE_ATTR(in0_min, S_IWUSR | S_IRUGO,
999 show_in_min, store_in_min, 0);
1000 static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO,
1001 show_in_min, store_in_min, 1);
1002 static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO,
1003 show_in_min, store_in_min, 2);
1004 static SENSOR_DEVICE_ATTR(in3_min, S_IWUSR | S_IRUGO,
1005 show_in_min, store_in_min, 3);
1006 static SENSOR_DEVICE_ATTR(in4_min, S_IWUSR | S_IRUGO,
1007 show_in_min, store_in_min, 4);
1008 static SENSOR_DEVICE_ATTR(in5_min, S_IWUSR | S_IRUGO,
1009 show_in_min, store_in_min, 5);
1010 static SENSOR_DEVICE_ATTR(in6_min, S_IWUSR | S_IRUGO,
1011 show_in_min, store_in_min, 6);
1012 static SENSOR_DEVICE_ATTR(in7_min, S_IWUSR | S_IRUGO,
1013 show_in_min, store_in_min, 7);
1014 static SENSOR_DEVICE_ATTR(in8_min, S_IWUSR | S_IRUGO,
1015 show_in_min, store_in_min, 8);
1016 static SENSOR_DEVICE_ATTR(in0_max, S_IWUSR | S_IRUGO,
1017 show_in_max, store_in_max, 0);
1018 static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO,
1019 show_in_max, store_in_max, 1);
1020 static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO,
1021 show_in_max, store_in_max, 2);
1022 static SENSOR_DEVICE_ATTR(in3_max, S_IWUSR | S_IRUGO,
1023 show_in_max, store_in_max, 3);
1024 static SENSOR_DEVICE_ATTR(in4_max, S_IWUSR | S_IRUGO,
1025 show_in_max, store_in_max, 4);
1026 static SENSOR_DEVICE_ATTR(in5_max, S_IWUSR | S_IRUGO,
1027 show_in_max, store_in_max, 5);
1028 static SENSOR_DEVICE_ATTR(in6_max, S_IWUSR | S_IRUGO,
1029 show_in_max, store_in_max, 6);
1030 static SENSOR_DEVICE_ATTR(in7_max, S_IWUSR | S_IRUGO,
1031 show_in_max, store_in_max, 7);
1032 static SENSOR_DEVICE_ATTR(in8_max, S_IWUSR | S_IRUGO,
1033 show_in_max, store_in_max, 8);
1034 static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp1, NULL, 0, 0);
1035 static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp23, NULL, 0, 0);
1036 static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp23, NULL, 1, 0);
1037 static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR,
1038 show_temp1, store_temp1, 0, 1);
1039 static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp23,
1040 store_temp23, 0, 2);
1041 static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp23,
1042 store_temp23, 1, 2);
1043 static SENSOR_DEVICE_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR,
1044 show_temp1, store_temp1, 0, 2);
1045 static SENSOR_DEVICE_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR,
1046 show_temp23, store_temp23, 0, 4);
1047 static SENSOR_DEVICE_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR,
1048 show_temp23, store_temp23, 1, 4);
1049 static DEVICE_ATTR_RO(alarms);
1050 static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
1051 static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
1052 static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 2);
1053 static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 3);
1054 static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 4);
1055 static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 5);
1056 static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 6);
1057 static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 7);
1058 static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 8);
1059 static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 9);
1060 static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 10);
1061 static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 11);
1062 static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 12);
1063 static SENSOR_DEVICE_ATTR(fan7_alarm, S_IRUGO, show_alarm, NULL, 15);
1064 static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 19);
1065 static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 20);
1066 static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 21);
1067 static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 22);
1068 static SENSOR_DEVICE_ATTR(fan6_alarm, S_IRUGO, show_alarm, NULL, 23);
1069 static DEVICE_ATTR_RW(intrusion0_alarm);
1070 static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0);
1071 static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1);
1072 static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2);
1073 static SENSOR_DEVICE_ATTR(pwm4, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 3);
1074 static SENSOR_DEVICE_ATTR(pwm5, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 4);
1075 static SENSOR_DEVICE_ATTR(pwm6, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 5);
1076 static SENSOR_DEVICE_ATTR(pwm7, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 6);
1077 static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO,
1078 show_pwmenable, store_pwmenable, 1);
1079 static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO,
1080 show_pwmenable, store_pwmenable, 2);
1081 static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO,
1082 show_pwmenable, store_pwmenable, 3);
1083 static SENSOR_DEVICE_ATTR(pwm1_mode, S_IWUSR | S_IRUGO,
1084 show_pwm_mode, store_pwm_mode, 0);
1085 static SENSOR_DEVICE_ATTR(pwm2_mode, S_IWUSR | S_IRUGO,
1086 show_pwm_mode, store_pwm_mode, 1);
1087 static SENSOR_DEVICE_ATTR(pwm3_mode, S_IWUSR | S_IRUGO,
1088 show_pwm_mode, store_pwm_mode, 2);
1089 static SENSOR_DEVICE_ATTR(pwm4_mode, S_IWUSR | S_IRUGO,
1090 show_pwm_mode, store_pwm_mode, 3);
1091 static SENSOR_DEVICE_ATTR(pwm5_mode, S_IWUSR | S_IRUGO,
1092 show_pwm_mode, store_pwm_mode, 4);
1093 static SENSOR_DEVICE_ATTR(pwm6_mode, S_IWUSR | S_IRUGO,
1094 show_pwm_mode, store_pwm_mode, 5);
1095 static SENSOR_DEVICE_ATTR(pwm7_mode, S_IWUSR | S_IRUGO,
1096 show_pwm_mode, store_pwm_mode, 6);
1097 static SENSOR_DEVICE_ATTR(tolerance1, S_IWUSR | S_IRUGO,
1098 show_tolerance, store_tolerance, 1);
1099 static SENSOR_DEVICE_ATTR(tolerance2, S_IWUSR | S_IRUGO,
1100 show_tolerance, store_tolerance, 2);
1101 static SENSOR_DEVICE_ATTR(tolerance3, S_IWUSR | S_IRUGO,
1102 show_tolerance, store_tolerance, 3);
1103 static SENSOR_DEVICE_ATTR(thermal_cruise1, S_IWUSR | S_IRUGO,
1104 show_thermal_cruise, store_thermal_cruise, 1);
1105 static SENSOR_DEVICE_ATTR(thermal_cruise2, S_IWUSR | S_IRUGO,
1106 show_thermal_cruise, store_thermal_cruise, 2);
1107 static SENSOR_DEVICE_ATTR(thermal_cruise3, S_IWUSR | S_IRUGO,
1108 show_thermal_cruise, store_thermal_cruise, 3);
1109 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan1, S_IRUGO | S_IWUSR,
1110 show_sf2_point, store_sf2_point, 1, 1);
1111 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan1, S_IRUGO | S_IWUSR,
1112 show_sf2_point, store_sf2_point, 2, 1);
1113 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan1, S_IRUGO | S_IWUSR,
1114 show_sf2_point, store_sf2_point, 3, 1);
1115 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan1, S_IRUGO | S_IWUSR,
1116 show_sf2_point, store_sf2_point, 4, 1);
1117 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan2, S_IRUGO | S_IWUSR,
1118 show_sf2_point, store_sf2_point, 1, 2);
1119 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan2, S_IRUGO | S_IWUSR,
1120 show_sf2_point, store_sf2_point, 2, 2);
1121 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan2, S_IRUGO | S_IWUSR,
1122 show_sf2_point, store_sf2_point, 3, 2);
1123 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan2, S_IRUGO | S_IWUSR,
1124 show_sf2_point, store_sf2_point, 4, 2);
1125 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan3, S_IRUGO | S_IWUSR,
1126 show_sf2_point, store_sf2_point, 1, 3);
1127 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan3, S_IRUGO | S_IWUSR,
1128 show_sf2_point, store_sf2_point, 2, 3);
1129 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan3, S_IRUGO | S_IWUSR,
1130 show_sf2_point, store_sf2_point, 3, 3);
1131 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan3, S_IRUGO | S_IWUSR,
1132 show_sf2_point, store_sf2_point, 4, 3);
1133 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan1, S_IRUGO | S_IWUSR,
1134 show_sf2_level, store_sf2_level, 1, 1);
1135 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan1, S_IRUGO | S_IWUSR,
1136 show_sf2_level, store_sf2_level, 2, 1);
1137 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan1, S_IRUGO | S_IWUSR,
1138 show_sf2_level, store_sf2_level, 3, 1);
1139 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan2, S_IRUGO | S_IWUSR,
1140 show_sf2_level, store_sf2_level, 1, 2);
1141 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan2, S_IRUGO | S_IWUSR,
1142 show_sf2_level, store_sf2_level, 2, 2);
1143 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan2, S_IRUGO | S_IWUSR,
1144 show_sf2_level, store_sf2_level, 3, 2);
1145 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan3, S_IRUGO | S_IWUSR,
1146 show_sf2_level, store_sf2_level, 1, 3);
1147 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan3, S_IRUGO | S_IWUSR,
1148 show_sf2_level, store_sf2_level, 2, 3);
1149 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan3, S_IRUGO | S_IWUSR,
1150 show_sf2_level, store_sf2_level, 3, 3);
1151 static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 1);
1152 static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 2);
1153 static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 3);
1154 static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 4);
1155 static SENSOR_DEVICE_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 5);
1156 static SENSOR_DEVICE_ATTR(fan6_input, S_IRUGO, show_fan, NULL, 6);
1157 static SENSOR_DEVICE_ATTR(fan7_input, S_IRUGO, show_fan, NULL, 7);
1158 static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO,
1159 show_fan_min, store_fan_min, 1);
1160 static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO,
1161 show_fan_min, store_fan_min, 2);
1162 static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO,
1163 show_fan_min, store_fan_min, 3);
1164 static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO,
1165 show_fan_min, store_fan_min, 4);
1166 static SENSOR_DEVICE_ATTR(fan5_min, S_IWUSR | S_IRUGO,
1167 show_fan_min, store_fan_min, 5);
1168 static SENSOR_DEVICE_ATTR(fan6_min, S_IWUSR | S_IRUGO,
1169 show_fan_min, store_fan_min, 6);
1170 static SENSOR_DEVICE_ATTR(fan7_min, S_IWUSR | S_IRUGO,
1171 show_fan_min, store_fan_min, 7);
1172 static SENSOR_DEVICE_ATTR(fan1_div, S_IWUSR | S_IRUGO,
1173 show_fan_div, store_fan_div, 1);
1174 static SENSOR_DEVICE_ATTR(fan2_div, S_IWUSR | S_IRUGO,
1175 show_fan_div, store_fan_div, 2);
1176 static SENSOR_DEVICE_ATTR(fan3_div, S_IWUSR | S_IRUGO,
1177 show_fan_div, store_fan_div, 3);
1178 static SENSOR_DEVICE_ATTR(fan4_div, S_IWUSR | S_IRUGO,
1179 show_fan_div, store_fan_div, 4);
1180 static SENSOR_DEVICE_ATTR(fan5_div, S_IWUSR | S_IRUGO,
1181 show_fan_div, store_fan_div, 5);
1182 static SENSOR_DEVICE_ATTR(fan6_div, S_IWUSR | S_IRUGO,
1183 show_fan_div, store_fan_div, 6);
1184 static SENSOR_DEVICE_ATTR(fan7_div, S_IWUSR | S_IRUGO,
1185 show_fan_div, store_fan_div, 7);
1186
1187 static struct attribute *w83792d_attributes_fan[4][7] = {
1188 {
1189 &sensor_dev_attr_fan4_input.dev_attr.attr,
1190 &sensor_dev_attr_fan4_min.dev_attr.attr,
1191 &sensor_dev_attr_fan4_div.dev_attr.attr,
1192 &sensor_dev_attr_fan4_alarm.dev_attr.attr,
1193 &sensor_dev_attr_pwm4.dev_attr.attr,
1194 &sensor_dev_attr_pwm4_mode.dev_attr.attr,
1195 NULL
1196 }, {
1197 &sensor_dev_attr_fan5_input.dev_attr.attr,
1198 &sensor_dev_attr_fan5_min.dev_attr.attr,
1199 &sensor_dev_attr_fan5_div.dev_attr.attr,
1200 &sensor_dev_attr_fan5_alarm.dev_attr.attr,
1201 &sensor_dev_attr_pwm5.dev_attr.attr,
1202 &sensor_dev_attr_pwm5_mode.dev_attr.attr,
1203 NULL
1204 }, {
1205 &sensor_dev_attr_fan6_input.dev_attr.attr,
1206 &sensor_dev_attr_fan6_min.dev_attr.attr,
1207 &sensor_dev_attr_fan6_div.dev_attr.attr,
1208 &sensor_dev_attr_fan6_alarm.dev_attr.attr,
1209 &sensor_dev_attr_pwm6.dev_attr.attr,
1210 &sensor_dev_attr_pwm6_mode.dev_attr.attr,
1211 NULL
1212 }, {
1213 &sensor_dev_attr_fan7_input.dev_attr.attr,
1214 &sensor_dev_attr_fan7_min.dev_attr.attr,
1215 &sensor_dev_attr_fan7_div.dev_attr.attr,
1216 &sensor_dev_attr_fan7_alarm.dev_attr.attr,
1217 &sensor_dev_attr_pwm7.dev_attr.attr,
1218 &sensor_dev_attr_pwm7_mode.dev_attr.attr,
1219 NULL
1220 }
1221 };
1222
1223 static const struct attribute_group w83792d_group_fan[4] = {
1224 { .attrs = w83792d_attributes_fan[0] },
1225 { .attrs = w83792d_attributes_fan[1] },
1226 { .attrs = w83792d_attributes_fan[2] },
1227 { .attrs = w83792d_attributes_fan[3] },
1228 };
1229
1230 static struct attribute *w83792d_attributes[] = {
1231 &sensor_dev_attr_in0_input.dev_attr.attr,
1232 &sensor_dev_attr_in0_max.dev_attr.attr,
1233 &sensor_dev_attr_in0_min.dev_attr.attr,
1234 &sensor_dev_attr_in1_input.dev_attr.attr,
1235 &sensor_dev_attr_in1_max.dev_attr.attr,
1236 &sensor_dev_attr_in1_min.dev_attr.attr,
1237 &sensor_dev_attr_in2_input.dev_attr.attr,
1238 &sensor_dev_attr_in2_max.dev_attr.attr,
1239 &sensor_dev_attr_in2_min.dev_attr.attr,
1240 &sensor_dev_attr_in3_input.dev_attr.attr,
1241 &sensor_dev_attr_in3_max.dev_attr.attr,
1242 &sensor_dev_attr_in3_min.dev_attr.attr,
1243 &sensor_dev_attr_in4_input.dev_attr.attr,
1244 &sensor_dev_attr_in4_max.dev_attr.attr,
1245 &sensor_dev_attr_in4_min.dev_attr.attr,
1246 &sensor_dev_attr_in5_input.dev_attr.attr,
1247 &sensor_dev_attr_in5_max.dev_attr.attr,
1248 &sensor_dev_attr_in5_min.dev_attr.attr,
1249 &sensor_dev_attr_in6_input.dev_attr.attr,
1250 &sensor_dev_attr_in6_max.dev_attr.attr,
1251 &sensor_dev_attr_in6_min.dev_attr.attr,
1252 &sensor_dev_attr_in7_input.dev_attr.attr,
1253 &sensor_dev_attr_in7_max.dev_attr.attr,
1254 &sensor_dev_attr_in7_min.dev_attr.attr,
1255 &sensor_dev_attr_in8_input.dev_attr.attr,
1256 &sensor_dev_attr_in8_max.dev_attr.attr,
1257 &sensor_dev_attr_in8_min.dev_attr.attr,
1258 &sensor_dev_attr_in0_alarm.dev_attr.attr,
1259 &sensor_dev_attr_in1_alarm.dev_attr.attr,
1260 &sensor_dev_attr_in2_alarm.dev_attr.attr,
1261 &sensor_dev_attr_in3_alarm.dev_attr.attr,
1262 &sensor_dev_attr_in4_alarm.dev_attr.attr,
1263 &sensor_dev_attr_in5_alarm.dev_attr.attr,
1264 &sensor_dev_attr_in6_alarm.dev_attr.attr,
1265 &sensor_dev_attr_in7_alarm.dev_attr.attr,
1266 &sensor_dev_attr_in8_alarm.dev_attr.attr,
1267 &sensor_dev_attr_temp1_input.dev_attr.attr,
1268 &sensor_dev_attr_temp1_max.dev_attr.attr,
1269 &sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
1270 &sensor_dev_attr_temp2_input.dev_attr.attr,
1271 &sensor_dev_attr_temp2_max.dev_attr.attr,
1272 &sensor_dev_attr_temp2_max_hyst.dev_attr.attr,
1273 &sensor_dev_attr_temp3_input.dev_attr.attr,
1274 &sensor_dev_attr_temp3_max.dev_attr.attr,
1275 &sensor_dev_attr_temp3_max_hyst.dev_attr.attr,
1276 &sensor_dev_attr_temp1_alarm.dev_attr.attr,
1277 &sensor_dev_attr_temp2_alarm.dev_attr.attr,
1278 &sensor_dev_attr_temp3_alarm.dev_attr.attr,
1279 &sensor_dev_attr_pwm1.dev_attr.attr,
1280 &sensor_dev_attr_pwm1_mode.dev_attr.attr,
1281 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
1282 &sensor_dev_attr_pwm2.dev_attr.attr,
1283 &sensor_dev_attr_pwm2_mode.dev_attr.attr,
1284 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
1285 &sensor_dev_attr_pwm3.dev_attr.attr,
1286 &sensor_dev_attr_pwm3_mode.dev_attr.attr,
1287 &sensor_dev_attr_pwm3_enable.dev_attr.attr,
1288 &dev_attr_alarms.attr,
1289 &dev_attr_intrusion0_alarm.attr,
1290 &sensor_dev_attr_tolerance1.dev_attr.attr,
1291 &sensor_dev_attr_thermal_cruise1.dev_attr.attr,
1292 &sensor_dev_attr_tolerance2.dev_attr.attr,
1293 &sensor_dev_attr_thermal_cruise2.dev_attr.attr,
1294 &sensor_dev_attr_tolerance3.dev_attr.attr,
1295 &sensor_dev_attr_thermal_cruise3.dev_attr.attr,
1296 &sensor_dev_attr_sf2_point1_fan1.dev_attr.attr,
1297 &sensor_dev_attr_sf2_point2_fan1.dev_attr.attr,
1298 &sensor_dev_attr_sf2_point3_fan1.dev_attr.attr,
1299 &sensor_dev_attr_sf2_point4_fan1.dev_attr.attr,
1300 &sensor_dev_attr_sf2_point1_fan2.dev_attr.attr,
1301 &sensor_dev_attr_sf2_point2_fan2.dev_attr.attr,
1302 &sensor_dev_attr_sf2_point3_fan2.dev_attr.attr,
1303 &sensor_dev_attr_sf2_point4_fan2.dev_attr.attr,
1304 &sensor_dev_attr_sf2_point1_fan3.dev_attr.attr,
1305 &sensor_dev_attr_sf2_point2_fan3.dev_attr.attr,
1306 &sensor_dev_attr_sf2_point3_fan3.dev_attr.attr,
1307 &sensor_dev_attr_sf2_point4_fan3.dev_attr.attr,
1308 &sensor_dev_attr_sf2_level1_fan1.dev_attr.attr,
1309 &sensor_dev_attr_sf2_level2_fan1.dev_attr.attr,
1310 &sensor_dev_attr_sf2_level3_fan1.dev_attr.attr,
1311 &sensor_dev_attr_sf2_level1_fan2.dev_attr.attr,
1312 &sensor_dev_attr_sf2_level2_fan2.dev_attr.attr,
1313 &sensor_dev_attr_sf2_level3_fan2.dev_attr.attr,
1314 &sensor_dev_attr_sf2_level1_fan3.dev_attr.attr,
1315 &sensor_dev_attr_sf2_level2_fan3.dev_attr.attr,
1316 &sensor_dev_attr_sf2_level3_fan3.dev_attr.attr,
1317 &sensor_dev_attr_fan1_input.dev_attr.attr,
1318 &sensor_dev_attr_fan1_min.dev_attr.attr,
1319 &sensor_dev_attr_fan1_div.dev_attr.attr,
1320 &sensor_dev_attr_fan1_alarm.dev_attr.attr,
1321 &sensor_dev_attr_fan2_input.dev_attr.attr,
1322 &sensor_dev_attr_fan2_min.dev_attr.attr,
1323 &sensor_dev_attr_fan2_div.dev_attr.attr,
1324 &sensor_dev_attr_fan2_alarm.dev_attr.attr,
1325 &sensor_dev_attr_fan3_input.dev_attr.attr,
1326 &sensor_dev_attr_fan3_min.dev_attr.attr,
1327 &sensor_dev_attr_fan3_div.dev_attr.attr,
1328 &sensor_dev_attr_fan3_alarm.dev_attr.attr,
1329 NULL
1330 };
1331
1332 static const struct attribute_group w83792d_group = {
1333 .attrs = w83792d_attributes,
1334 };
1335
1336 /* Return 0 if detection is successful, -ENODEV otherwise */
1337 static int
1338 w83792d_detect(struct i2c_client *client, struct i2c_board_info *info)
1339 {
1340 struct i2c_adapter *adapter = client->adapter;
1341 int val1, val2;
1342 unsigned short address = client->addr;
1343
1344 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
1345 return -ENODEV;
1346
1347 if (w83792d_read_value(client, W83792D_REG_CONFIG) & 0x80)
1348 return -ENODEV;
1349
1350 val1 = w83792d_read_value(client, W83792D_REG_BANK);
1351 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN);
1352 /* Check for Winbond ID if in bank 0 */
1353 if (!(val1 & 0x07)) { /* is Bank0 */
1354 if ((!(val1 & 0x80) && val2 != 0xa3) ||
1355 ((val1 & 0x80) && val2 != 0x5c))
1356 return -ENODEV;
1357 }
1358 /*
1359 * If Winbond chip, address of chip and W83792D_REG_I2C_ADDR
1360 * should match
1361 */
1362 if (w83792d_read_value(client, W83792D_REG_I2C_ADDR) != address)
1363 return -ENODEV;
1364
1365 /* Put it now into bank 0 and Vendor ID High Byte */
1366 w83792d_write_value(client,
1367 W83792D_REG_BANK,
1368 (w83792d_read_value(client,
1369 W83792D_REG_BANK) & 0x78) | 0x80);
1370
1371 /* Determine the chip type. */
1372 val1 = w83792d_read_value(client, W83792D_REG_WCHIPID);
1373 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN);
1374 if (val1 != 0x7a || val2 != 0x5c)
1375 return -ENODEV;
1376
1377 strlcpy(info->type, "w83792d", I2C_NAME_SIZE);
1378
1379 return 0;
1380 }
1381
1382 static int
1383 w83792d_probe(struct i2c_client *client, const struct i2c_device_id *id)
1384 {
1385 struct w83792d_data *data;
1386 struct device *dev = &client->dev;
1387 int i, val1, err;
1388
1389 data = devm_kzalloc(dev, sizeof(struct w83792d_data), GFP_KERNEL);
1390 if (!data)
1391 return -ENOMEM;
1392
1393 i2c_set_clientdata(client, data);
1394 mutex_init(&data->update_lock);
1395
1396 err = w83792d_detect_subclients(client);
1397 if (err)
1398 return err;
1399
1400 /* Initialize the chip */
1401 w83792d_init_client(client);
1402
1403 /* A few vars need to be filled upon startup */
1404 for (i = 0; i < 7; i++) {
1405 data->fan_min[i] = w83792d_read_value(client,
1406 W83792D_REG_FAN_MIN[i]);
1407 }
1408
1409 /* Register sysfs hooks */
1410 err = sysfs_create_group(&dev->kobj, &w83792d_group);
1411 if (err)
1412 goto exit_i2c_unregister;
1413
1414 /*
1415 * Read GPIO enable register to check if pins for fan 4,5 are used as
1416 * GPIO
1417 */
1418 val1 = w83792d_read_value(client, W83792D_REG_GPIO_EN);
1419
1420 if (!(val1 & 0x40)) {
1421 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[0]);
1422 if (err)
1423 goto exit_remove_files;
1424 }
1425
1426 if (!(val1 & 0x20)) {
1427 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[1]);
1428 if (err)
1429 goto exit_remove_files;
1430 }
1431
1432 val1 = w83792d_read_value(client, W83792D_REG_PIN);
1433 if (val1 & 0x40) {
1434 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[2]);
1435 if (err)
1436 goto exit_remove_files;
1437 }
1438
1439 if (val1 & 0x04) {
1440 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[3]);
1441 if (err)
1442 goto exit_remove_files;
1443 }
1444
1445 data->hwmon_dev = hwmon_device_register(dev);
1446 if (IS_ERR(data->hwmon_dev)) {
1447 err = PTR_ERR(data->hwmon_dev);
1448 goto exit_remove_files;
1449 }
1450
1451 return 0;
1452
1453 exit_remove_files:
1454 sysfs_remove_group(&dev->kobj, &w83792d_group);
1455 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++)
1456 sysfs_remove_group(&dev->kobj, &w83792d_group_fan[i]);
1457 exit_i2c_unregister:
1458 i2c_unregister_device(data->lm75[0]);
1459 i2c_unregister_device(data->lm75[1]);
1460 return err;
1461 }
1462
1463 static int
1464 w83792d_remove(struct i2c_client *client)
1465 {
1466 struct w83792d_data *data = i2c_get_clientdata(client);
1467 int i;
1468
1469 hwmon_device_unregister(data->hwmon_dev);
1470 sysfs_remove_group(&client->dev.kobj, &w83792d_group);
1471 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++)
1472 sysfs_remove_group(&client->dev.kobj,
1473 &w83792d_group_fan[i]);
1474
1475 i2c_unregister_device(data->lm75[0]);
1476 i2c_unregister_device(data->lm75[1]);
1477
1478 return 0;
1479 }
1480
1481 static void
1482 w83792d_init_client(struct i2c_client *client)
1483 {
1484 u8 temp2_cfg, temp3_cfg, vid_in_b;
1485
1486 if (init)
1487 w83792d_write_value(client, W83792D_REG_CONFIG, 0x80);
1488
1489 /*
1490 * Clear the bit6 of W83792D_REG_VID_IN_B(set it into 0):
1491 * W83792D_REG_VID_IN_B bit6 = 0: the high/low limit of
1492 * vin0/vin1 can be modified by user;
1493 * W83792D_REG_VID_IN_B bit6 = 1: the high/low limit of
1494 * vin0/vin1 auto-updated, can NOT be modified by user.
1495 */
1496 vid_in_b = w83792d_read_value(client, W83792D_REG_VID_IN_B);
1497 w83792d_write_value(client, W83792D_REG_VID_IN_B,
1498 vid_in_b & 0xbf);
1499
1500 temp2_cfg = w83792d_read_value(client, W83792D_REG_TEMP2_CONFIG);
1501 temp3_cfg = w83792d_read_value(client, W83792D_REG_TEMP3_CONFIG);
1502 w83792d_write_value(client, W83792D_REG_TEMP2_CONFIG,
1503 temp2_cfg & 0xe6);
1504 w83792d_write_value(client, W83792D_REG_TEMP3_CONFIG,
1505 temp3_cfg & 0xe6);
1506
1507 /* Start monitoring */
1508 w83792d_write_value(client, W83792D_REG_CONFIG,
1509 (w83792d_read_value(client,
1510 W83792D_REG_CONFIG) & 0xf7)
1511 | 0x01);
1512 }
1513
1514 static struct w83792d_data *w83792d_update_device(struct device *dev)
1515 {
1516 struct i2c_client *client = to_i2c_client(dev);
1517 struct w83792d_data *data = i2c_get_clientdata(client);
1518 int i, j;
1519 u8 reg_array_tmp[4], reg_tmp;
1520
1521 mutex_lock(&data->update_lock);
1522
1523 if (time_after
1524 (jiffies - data->last_updated, (unsigned long) (HZ * 3))
1525 || time_before(jiffies, data->last_updated) || !data->valid) {
1526 dev_dbg(dev, "Starting device update\n");
1527
1528 /* Update the voltages measured value and limits */
1529 for (i = 0; i < 9; i++) {
1530 data->in[i] = w83792d_read_value(client,
1531 W83792D_REG_IN[i]);
1532 data->in_max[i] = w83792d_read_value(client,
1533 W83792D_REG_IN_MAX[i]);
1534 data->in_min[i] = w83792d_read_value(client,
1535 W83792D_REG_IN_MIN[i]);
1536 }
1537 data->low_bits = w83792d_read_value(client,
1538 W83792D_REG_LOW_BITS1) +
1539 (w83792d_read_value(client,
1540 W83792D_REG_LOW_BITS2) << 8);
1541 for (i = 0; i < 7; i++) {
1542 /* Update the Fan measured value and limits */
1543 data->fan[i] = w83792d_read_value(client,
1544 W83792D_REG_FAN[i]);
1545 data->fan_min[i] = w83792d_read_value(client,
1546 W83792D_REG_FAN_MIN[i]);
1547 /* Update the PWM/DC Value and PWM/DC flag */
1548 data->pwm[i] = w83792d_read_value(client,
1549 W83792D_REG_PWM[i]);
1550 }
1551
1552 reg_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG);
1553 data->pwmenable[0] = reg_tmp & 0x03;
1554 data->pwmenable[1] = (reg_tmp>>2) & 0x03;
1555 data->pwmenable[2] = (reg_tmp>>4) & 0x03;
1556
1557 for (i = 0; i < 3; i++) {
1558 data->temp1[i] = w83792d_read_value(client,
1559 W83792D_REG_TEMP1[i]);
1560 }
1561 for (i = 0; i < 2; i++) {
1562 for (j = 0; j < 6; j++) {
1563 data->temp_add[i][j] = w83792d_read_value(
1564 client, W83792D_REG_TEMP_ADD[i][j]);
1565 }
1566 }
1567
1568 /* Update the Fan Divisor */
1569 for (i = 0; i < 4; i++) {
1570 reg_array_tmp[i] = w83792d_read_value(client,
1571 W83792D_REG_FAN_DIV[i]);
1572 }
1573 data->fan_div[0] = reg_array_tmp[0] & 0x07;
1574 data->fan_div[1] = (reg_array_tmp[0] >> 4) & 0x07;
1575 data->fan_div[2] = reg_array_tmp[1] & 0x07;
1576 data->fan_div[3] = (reg_array_tmp[1] >> 4) & 0x07;
1577 data->fan_div[4] = reg_array_tmp[2] & 0x07;
1578 data->fan_div[5] = (reg_array_tmp[2] >> 4) & 0x07;
1579 data->fan_div[6] = reg_array_tmp[3] & 0x07;
1580
1581 /* Update the realtime status */
1582 data->alarms = w83792d_read_value(client, W83792D_REG_ALARM1) +
1583 (w83792d_read_value(client, W83792D_REG_ALARM2) << 8) +
1584 (w83792d_read_value(client, W83792D_REG_ALARM3) << 16);
1585
1586 /* Update CaseOpen status and it's CLR_CHS. */
1587 data->chassis = (w83792d_read_value(client,
1588 W83792D_REG_CHASSIS) >> 5) & 0x01;
1589
1590 /* Update Thermal Cruise/Smart Fan I target value */
1591 for (i = 0; i < 3; i++) {
1592 data->thermal_cruise[i] =
1593 w83792d_read_value(client,
1594 W83792D_REG_THERMAL[i]) & 0x7f;
1595 }
1596
1597 /* Update Smart Fan I/II tolerance */
1598 reg_tmp = w83792d_read_value(client, W83792D_REG_TOLERANCE[0]);
1599 data->tolerance[0] = reg_tmp & 0x0f;
1600 data->tolerance[1] = (reg_tmp >> 4) & 0x0f;
1601 data->tolerance[2] = w83792d_read_value(client,
1602 W83792D_REG_TOLERANCE[2]) & 0x0f;
1603
1604 /* Update Smart Fan II temperature points */
1605 for (i = 0; i < 3; i++) {
1606 for (j = 0; j < 4; j++) {
1607 data->sf2_points[i][j]
1608 = w83792d_read_value(client,
1609 W83792D_REG_POINTS[i][j]) & 0x7f;
1610 }
1611 }
1612
1613 /* Update Smart Fan II duty cycle levels */
1614 for (i = 0; i < 3; i++) {
1615 reg_tmp = w83792d_read_value(client,
1616 W83792D_REG_LEVELS[i][0]);
1617 data->sf2_levels[i][0] = reg_tmp & 0x0f;
1618 data->sf2_levels[i][1] = (reg_tmp >> 4) & 0x0f;
1619 reg_tmp = w83792d_read_value(client,
1620 W83792D_REG_LEVELS[i][2]);
1621 data->sf2_levels[i][2] = (reg_tmp >> 4) & 0x0f;
1622 data->sf2_levels[i][3] = reg_tmp & 0x0f;
1623 }
1624
1625 data->last_updated = jiffies;
1626 data->valid = 1;
1627 }
1628
1629 mutex_unlock(&data->update_lock);
1630
1631 #ifdef DEBUG
1632 w83792d_print_debug(data, dev);
1633 #endif
1634
1635 return data;
1636 }
1637
1638 #ifdef DEBUG
1639 static void w83792d_print_debug(struct w83792d_data *data, struct device *dev)
1640 {
1641 int i = 0, j = 0;
1642 dev_dbg(dev, "==========The following is the debug message...========\n");
1643 dev_dbg(dev, "9 set of Voltages: =====>\n");
1644 for (i = 0; i < 9; i++) {
1645 dev_dbg(dev, "vin[%d] is: 0x%x\n", i, data->in[i]);
1646 dev_dbg(dev, "vin[%d] max is: 0x%x\n", i, data->in_max[i]);
1647 dev_dbg(dev, "vin[%d] min is: 0x%x\n", i, data->in_min[i]);
1648 }
1649 dev_dbg(dev, "Low Bit1 is: 0x%x\n", data->low_bits & 0xff);
1650 dev_dbg(dev, "Low Bit2 is: 0x%x\n", data->low_bits >> 8);
1651 dev_dbg(dev, "7 set of Fan Counts and Duty Cycles: =====>\n");
1652 for (i = 0; i < 7; i++) {
1653 dev_dbg(dev, "fan[%d] is: 0x%x\n", i, data->fan[i]);
1654 dev_dbg(dev, "fan[%d] min is: 0x%x\n", i, data->fan_min[i]);
1655 dev_dbg(dev, "pwm[%d] is: 0x%x\n", i, data->pwm[i]);
1656 }
1657 dev_dbg(dev, "3 set of Temperatures: =====>\n");
1658 for (i = 0; i < 3; i++)
1659 dev_dbg(dev, "temp1[%d] is: 0x%x\n", i, data->temp1[i]);
1660
1661 for (i = 0; i < 2; i++) {
1662 for (j = 0; j < 6; j++) {
1663 dev_dbg(dev, "temp_add[%d][%d] is: 0x%x\n", i, j,
1664 data->temp_add[i][j]);
1665 }
1666 }
1667
1668 for (i = 0; i < 7; i++)
1669 dev_dbg(dev, "fan_div[%d] is: 0x%x\n", i, data->fan_div[i]);
1670
1671 dev_dbg(dev, "==========End of the debug message...================\n");
1672 dev_dbg(dev, "\n");
1673 }
1674 #endif
1675
1676 module_i2c_driver(w83792d_driver);
1677
1678 MODULE_AUTHOR("Shane Huang (Winbond)");
1679 MODULE_DESCRIPTION("W83792AD/D driver for linux-2.6");
1680 MODULE_LICENSE("GPL");
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