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i2c-eg20t: change timeout value 50msec to 1000msec
[zen-stable.git] / drivers / hwmon / w83792d.c
blobd3100eab6b2f281bd77e94f1e669003ccd892fa3
1 /*
2 w83792d.c - Part of lm_sensors, Linux kernel modules for hardware
3 monitoring
4 Copyright (C) 2004, 2005 Winbond Electronics Corp.
5 Chunhao Huang <DZShen@Winbond.com.tw>,
6 Rudolf Marek <r.marek@assembler.cz>
7
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
12
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21
22 Note:
23 1. This driver is only for 2.6 kernel, 2.4 kernel need a different driver.
24 2. This driver is only for Winbond W83792D C version device, there
25 are also some motherboards with B version W83792D device. The
26 calculation method to in6-in7(measured value, limits) is a little
27 different between C and B version. C or B version can be identified
28 by CR[0x49h].
29 */
30
31 /*
32 Supports following chips:
33
34 Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA
35 w83792d 9 7 7 3 0x7a 0x5ca3 yes no
36 */
37
38 #include <linux/module.h>
39 #include <linux/init.h>
40 #include <linux/slab.h>
41 #include <linux/i2c.h>
42 #include <linux/hwmon.h>
43 #include <linux/hwmon-sysfs.h>
44 #include <linux/err.h>
45 #include <linux/mutex.h>
46 #include <linux/sysfs.h>
47
48 /* Addresses to scan */
49 static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f,
50 I2C_CLIENT_END };
51
52 /* Insmod parameters */
53
54 static unsigned short force_subclients[4];
55 module_param_array(force_subclients, short, NULL, 0);
56 MODULE_PARM_DESC(force_subclients, "List of subclient addresses: "
57 "{bus, clientaddr, subclientaddr1, subclientaddr2}");
58
59 static bool init;
60 module_param(init, bool, 0);
61 MODULE_PARM_DESC(init, "Set to one to force chip initialization");
62
63 /* The W83792D registers */
64 static const u8 W83792D_REG_IN[9] = {
65 0x20, /* Vcore A in DataSheet */
66 0x21, /* Vcore B in DataSheet */
67 0x22, /* VIN0 in DataSheet */
68 0x23, /* VIN1 in DataSheet */
69 0x24, /* VIN2 in DataSheet */
70 0x25, /* VIN3 in DataSheet */
71 0x26, /* 5VCC in DataSheet */
72 0xB0, /* 5VSB in DataSheet */
73 0xB1 /* VBAT in DataSheet */
74 };
75 #define W83792D_REG_LOW_BITS1 0x3E /* Low Bits I in DataSheet */
76 #define W83792D_REG_LOW_BITS2 0x3F /* Low Bits II in DataSheet */
77 static const u8 W83792D_REG_IN_MAX[9] = {
78 0x2B, /* Vcore A High Limit in DataSheet */
79 0x2D, /* Vcore B High Limit in DataSheet */
80 0x2F, /* VIN0 High Limit in DataSheet */
81 0x31, /* VIN1 High Limit in DataSheet */
82 0x33, /* VIN2 High Limit in DataSheet */
83 0x35, /* VIN3 High Limit in DataSheet */
84 0x37, /* 5VCC High Limit in DataSheet */
85 0xB4, /* 5VSB High Limit in DataSheet */
86 0xB6 /* VBAT High Limit in DataSheet */
87 };
88 static const u8 W83792D_REG_IN_MIN[9] = {
89 0x2C, /* Vcore A Low Limit in DataSheet */
90 0x2E, /* Vcore B Low Limit in DataSheet */
91 0x30, /* VIN0 Low Limit in DataSheet */
92 0x32, /* VIN1 Low Limit in DataSheet */
93 0x34, /* VIN2 Low Limit in DataSheet */
94 0x36, /* VIN3 Low Limit in DataSheet */
95 0x38, /* 5VCC Low Limit in DataSheet */
96 0xB5, /* 5VSB Low Limit in DataSheet */
97 0xB7 /* VBAT Low Limit in DataSheet */
98 };
99 static const u8 W83792D_REG_FAN[7] = {
100 0x28, /* FAN 1 Count in DataSheet */
101 0x29, /* FAN 2 Count in DataSheet */
102 0x2A, /* FAN 3 Count in DataSheet */
103 0xB8, /* FAN 4 Count in DataSheet */
104 0xB9, /* FAN 5 Count in DataSheet */
105 0xBA, /* FAN 6 Count in DataSheet */
106 0xBE /* FAN 7 Count in DataSheet */
107 };
108 static const u8 W83792D_REG_FAN_MIN[7] = {
109 0x3B, /* FAN 1 Count Low Limit in DataSheet */
110 0x3C, /* FAN 2 Count Low Limit in DataSheet */
111 0x3D, /* FAN 3 Count Low Limit in DataSheet */
112 0xBB, /* FAN 4 Count Low Limit in DataSheet */
113 0xBC, /* FAN 5 Count Low Limit in DataSheet */
114 0xBD, /* FAN 6 Count Low Limit in DataSheet */
115 0xBF /* FAN 7 Count Low Limit in DataSheet */
116 };
117 #define W83792D_REG_FAN_CFG 0x84 /* FAN Configuration in DataSheet */
118 static const u8 W83792D_REG_FAN_DIV[4] = {
119 0x47, /* contains FAN2 and FAN1 Divisor */
120 0x5B, /* contains FAN4 and FAN3 Divisor */
121 0x5C, /* contains FAN6 and FAN5 Divisor */
122 0x9E /* contains FAN7 Divisor. */
123 };
124 static const u8 W83792D_REG_PWM[7] = {
125 0x81, /* FAN 1 Duty Cycle, be used to control */
126 0x83, /* FAN 2 Duty Cycle, be used to control */
127 0x94, /* FAN 3 Duty Cycle, be used to control */
128 0xA3, /* FAN 4 Duty Cycle, be used to control */
129 0xA4, /* FAN 5 Duty Cycle, be used to control */
130 0xA5, /* FAN 6 Duty Cycle, be used to control */
131 0xA6 /* FAN 7 Duty Cycle, be used to control */
132 };
133 #define W83792D_REG_BANK 0x4E
134 #define W83792D_REG_TEMP2_CONFIG 0xC2
135 #define W83792D_REG_TEMP3_CONFIG 0xCA
136
137 static const u8 W83792D_REG_TEMP1[3] = {
138 0x27, /* TEMP 1 in DataSheet */
139 0x39, /* TEMP 1 Over in DataSheet */
140 0x3A, /* TEMP 1 Hyst in DataSheet */
141 };
142
143 static const u8 W83792D_REG_TEMP_ADD[2][6] = {
144 { 0xC0, /* TEMP 2 in DataSheet */
145 0xC1, /* TEMP 2(0.5 deg) in DataSheet */
146 0xC5, /* TEMP 2 Over High part in DataSheet */
147 0xC6, /* TEMP 2 Over Low part in DataSheet */
148 0xC3, /* TEMP 2 Thyst High part in DataSheet */
149 0xC4 }, /* TEMP 2 Thyst Low part in DataSheet */
150 { 0xC8, /* TEMP 3 in DataSheet */
151 0xC9, /* TEMP 3(0.5 deg) in DataSheet */
152 0xCD, /* TEMP 3 Over High part in DataSheet */
153 0xCE, /* TEMP 3 Over Low part in DataSheet */
154 0xCB, /* TEMP 3 Thyst High part in DataSheet */
155 0xCC } /* TEMP 3 Thyst Low part in DataSheet */
156 };
157
158 static const u8 W83792D_REG_THERMAL[3] = {
159 0x85, /* SmartFanI: Fan1 target value */
160 0x86, /* SmartFanI: Fan2 target value */
161 0x96 /* SmartFanI: Fan3 target value */
162 };
163
164 static const u8 W83792D_REG_TOLERANCE[3] = {
165 0x87, /* (bit3-0)SmartFan Fan1 tolerance */
166 0x87, /* (bit7-4)SmartFan Fan2 tolerance */
167 0x97 /* (bit3-0)SmartFan Fan3 tolerance */
168 };
169
170 static const u8 W83792D_REG_POINTS[3][4] = {
171 { 0x85, /* SmartFanII: Fan1 temp point 1 */
172 0xE3, /* SmartFanII: Fan1 temp point 2 */
173 0xE4, /* SmartFanII: Fan1 temp point 3 */
174 0xE5 }, /* SmartFanII: Fan1 temp point 4 */
175 { 0x86, /* SmartFanII: Fan2 temp point 1 */
176 0xE6, /* SmartFanII: Fan2 temp point 2 */
177 0xE7, /* SmartFanII: Fan2 temp point 3 */
178 0xE8 }, /* SmartFanII: Fan2 temp point 4 */
179 { 0x96, /* SmartFanII: Fan3 temp point 1 */
180 0xE9, /* SmartFanII: Fan3 temp point 2 */
181 0xEA, /* SmartFanII: Fan3 temp point 3 */
182 0xEB } /* SmartFanII: Fan3 temp point 4 */
183 };
184
185 static const u8 W83792D_REG_LEVELS[3][4] = {
186 { 0x88, /* (bit3-0) SmartFanII: Fan1 Non-Stop */
187 0x88, /* (bit7-4) SmartFanII: Fan1 Level 1 */
188 0xE0, /* (bit7-4) SmartFanII: Fan1 Level 2 */
189 0xE0 }, /* (bit3-0) SmartFanII: Fan1 Level 3 */
190 { 0x89, /* (bit3-0) SmartFanII: Fan2 Non-Stop */
191 0x89, /* (bit7-4) SmartFanII: Fan2 Level 1 */
192 0xE1, /* (bit7-4) SmartFanII: Fan2 Level 2 */
193 0xE1 }, /* (bit3-0) SmartFanII: Fan2 Level 3 */
194 { 0x98, /* (bit3-0) SmartFanII: Fan3 Non-Stop */
195 0x98, /* (bit7-4) SmartFanII: Fan3 Level 1 */
196 0xE2, /* (bit7-4) SmartFanII: Fan3 Level 2 */
197 0xE2 } /* (bit3-0) SmartFanII: Fan3 Level 3 */
198 };
199
200 #define W83792D_REG_GPIO_EN 0x1A
201 #define W83792D_REG_CONFIG 0x40
202 #define W83792D_REG_VID_FANDIV 0x47
203 #define W83792D_REG_CHIPID 0x49
204 #define W83792D_REG_WCHIPID 0x58
205 #define W83792D_REG_CHIPMAN 0x4F
206 #define W83792D_REG_PIN 0x4B
207 #define W83792D_REG_I2C_SUBADDR 0x4A
208
209 #define W83792D_REG_ALARM1 0xA9 /* realtime status register1 */
210 #define W83792D_REG_ALARM2 0xAA /* realtime status register2 */
211 #define W83792D_REG_ALARM3 0xAB /* realtime status register3 */
212 #define W83792D_REG_CHASSIS 0x42 /* Bit 5: Case Open status bit */
213 #define W83792D_REG_CHASSIS_CLR 0x44 /* Bit 7: Case Open CLR_CHS/Reset bit */
214
215 /* control in0/in1 's limit modifiability */
216 #define W83792D_REG_VID_IN_B 0x17
217
218 #define W83792D_REG_VBAT 0x5D
219 #define W83792D_REG_I2C_ADDR 0x48
220
221 /* Conversions. Rounding and limit checking is only done on the TO_REG
222 variants. Note that you should be a bit careful with which arguments
223 these macros are called: arguments may be evaluated more than once.
224 Fixing this is just not worth it. */
225 #define IN_FROM_REG(nr,val) (((nr)<=1)?(val*2): \
226 ((((nr)==6)||((nr)==7))?(val*6):(val*4)))
227 #define IN_TO_REG(nr,val) (((nr)<=1)?(val/2): \
228 ((((nr)==6)||((nr)==7))?(val/6):(val/4)))
229
230 static inline u8
231 FAN_TO_REG(long rpm, int div)
232 {
233 if (rpm == 0)
234 return 255;
235 rpm = SENSORS_LIMIT(rpm, 1, 1000000);
236 return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 254);
237 }
238
239 #define FAN_FROM_REG(val,div) ((val) == 0 ? -1 : \
240 ((val) == 255 ? 0 : \
241 1350000 / ((val) * (div))))
242
243 /* for temp1 */
244 #define TEMP1_TO_REG(val) (SENSORS_LIMIT(((val) < 0 ? (val)+0x100*1000 \
245 : (val)) / 1000, 0, 0xff))
246 #define TEMP1_FROM_REG(val) (((val) & 0x80 ? (val)-0x100 : (val)) * 1000)
247 /* for temp2 and temp3, because they need additional resolution */
248 #define TEMP_ADD_FROM_REG(val1, val2) \
249 ((((val1) & 0x80 ? (val1)-0x100 \
250 : (val1)) * 1000) + ((val2 & 0x80) ? 500 : 0))
251 #define TEMP_ADD_TO_REG_HIGH(val) \
252 (SENSORS_LIMIT(((val) < 0 ? (val)+0x100*1000 \
253 : (val)) / 1000, 0, 0xff))
254 #define TEMP_ADD_TO_REG_LOW(val) ((val%1000) ? 0x80 : 0x00)
255
256 #define DIV_FROM_REG(val) (1 << (val))
257
258 static inline u8
259 DIV_TO_REG(long val)
260 {
261 int i;
262 val = SENSORS_LIMIT(val, 1, 128) >> 1;
263 for (i = 0; i < 7; i++) {
264 if (val == 0)
265 break;
266 val >>= 1;
267 }
268 return ((u8) i);
269 }
270
271 struct w83792d_data {
272 struct device *hwmon_dev;
273
274 struct mutex update_lock;
275 char valid; /* !=0 if following fields are valid */
276 unsigned long last_updated; /* In jiffies */
277
278 /* array of 2 pointers to subclients */
279 struct i2c_client *lm75[2];
280
281 u8 in[9]; /* Register value */
282 u8 in_max[9]; /* Register value */
283 u8 in_min[9]; /* Register value */
284 u16 low_bits; /* Additional resolution to voltage in6-0 */
285 u8 fan[7]; /* Register value */
286 u8 fan_min[7]; /* Register value */
287 u8 temp1[3]; /* current, over, thyst */
288 u8 temp_add[2][6]; /* Register value */
289 u8 fan_div[7]; /* Register encoding, shifted right */
290 u8 pwm[7]; /* We only consider the first 3 set of pwm,
291 although 792 chip has 7 set of pwm. */
292 u8 pwmenable[3];
293 u32 alarms; /* realtime status register encoding,combined */
294 u8 chassis; /* Chassis status */
295 u8 chassis_clear; /* CLR_CHS, clear chassis intrusion detection */
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 /* The SMBus locks itself. The Winbond W83792D chip has a bank register,
340 but the driver only accesses registers in bank 0, so we don't have
341 to switch banks and lock access between switches. */
342 static inline int w83792d_read_value(struct i2c_client *client, u8 reg)
343 {
344 return i2c_smbus_read_byte_data(client, reg);
345 }
346
347 static inline int
348 w83792d_write_value(struct i2c_client *client, u8 reg, u8 value)
349 {
350 return i2c_smbus_write_byte_data(client, reg, value);
351 }
352
353 /* following are the sysfs callback functions */
354 static ssize_t show_in(struct device *dev, struct device_attribute *attr,
355 char *buf)
356 {
357 struct sensor_device_attribute *sensor_attr = 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", IN_FROM_REG(nr,(in_count_from_reg(nr, data))));
361 }
362
363 #define show_in_reg(reg) \
364 static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
365 char *buf) \
366 { \
367 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
368 int nr = sensor_attr->index; \
369 struct w83792d_data *data = w83792d_update_device(dev); \
370 return sprintf(buf,"%ld\n", (long)(IN_FROM_REG(nr, (data->reg[nr])*4))); \
371 }
372
373 show_in_reg(in_min);
374 show_in_reg(in_max);
375
376 #define store_in_reg(REG, reg) \
377 static ssize_t store_in_##reg (struct device *dev, \
378 struct device_attribute *attr, \
379 const char *buf, size_t count) \
380 { \
381 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
382 int nr = sensor_attr->index; \
383 struct i2c_client *client = to_i2c_client(dev); \
384 struct w83792d_data *data = i2c_get_clientdata(client); \
385 u32 val; \
386 \
387 val = simple_strtoul(buf, NULL, 10); \
388 mutex_lock(&data->update_lock); \
389 data->in_##reg[nr] = SENSORS_LIMIT(IN_TO_REG(nr, val)/4, 0, 255); \
390 w83792d_write_value(client, W83792D_REG_IN_##REG[nr], data->in_##reg[nr]); \
391 mutex_unlock(&data->update_lock); \
392 \
393 return count; \
394 }
395 store_in_reg(MIN, min);
396 store_in_reg(MAX, max);
397
398 #define show_fan_reg(reg) \
399 static ssize_t show_##reg (struct device *dev, struct device_attribute *attr, \
400 char *buf) \
401 { \
402 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
403 int nr = sensor_attr->index - 1; \
404 struct w83792d_data *data = w83792d_update_device(dev); \
405 return sprintf(buf,"%d\n", \
406 FAN_FROM_REG(data->reg[nr], DIV_FROM_REG(data->fan_div[nr]))); \
407 }
408
409 show_fan_reg(fan);
410 show_fan_reg(fan_min);
411
412 static ssize_t
413 store_fan_min(struct device *dev, struct device_attribute *attr,
414 const char *buf, size_t count)
415 {
416 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
417 int nr = sensor_attr->index - 1;
418 struct i2c_client *client = to_i2c_client(dev);
419 struct w83792d_data *data = i2c_get_clientdata(client);
420 u32 val;
421
422 val = simple_strtoul(buf, NULL, 10);
423 mutex_lock(&data->update_lock);
424 data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
425 w83792d_write_value(client, W83792D_REG_FAN_MIN[nr],
426 data->fan_min[nr]);
427 mutex_unlock(&data->update_lock);
428
429 return count;
430 }
431
432 static ssize_t
433 show_fan_div(struct device *dev, struct device_attribute *attr,
434 char *buf)
435 {
436 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
437 int nr = sensor_attr->index;
438 struct w83792d_data *data = w83792d_update_device(dev);
439 return sprintf(buf, "%u\n", DIV_FROM_REG(data->fan_div[nr - 1]));
440 }
441
442 /* 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 static ssize_t
447 store_fan_div(struct device *dev, struct device_attribute *attr,
448 const char *buf, size_t count)
449 {
450 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
451 int nr = sensor_attr->index - 1;
452 struct i2c_client *client = to_i2c_client(dev);
453 struct w83792d_data *data = i2c_get_clientdata(client);
454 unsigned long min;
455 /*u8 reg;*/
456 u8 fan_div_reg = 0;
457 u8 tmp_fan_div;
458
459 /* Save fan_min */
460 mutex_lock(&data->update_lock);
461 min = FAN_FROM_REG(data->fan_min[nr],
462 DIV_FROM_REG(data->fan_div[nr]));
463
464 data->fan_div[nr] = DIV_TO_REG(simple_strtoul(buf, NULL, 10));
465
466 fan_div_reg = w83792d_read_value(client, W83792D_REG_FAN_DIV[nr >> 1]);
467 fan_div_reg &= (nr & 0x01) ? 0x8f : 0xf8;
468 tmp_fan_div = (nr & 0x01) ? (((data->fan_div[nr]) << 4) & 0x70)
469 : ((data->fan_div[nr]) & 0x07);
470 w83792d_write_value(client, W83792D_REG_FAN_DIV[nr >> 1],
471 fan_div_reg | tmp_fan_div);
472
473 /* Restore fan_min */
474 data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
475 w83792d_write_value(client, W83792D_REG_FAN_MIN[nr], data->fan_min[nr]);
476 mutex_unlock(&data->update_lock);
477
478 return count;
479 }
480
481 /* read/write the temperature1, includes measured value and limits */
482
483 static ssize_t show_temp1(struct device *dev, struct device_attribute *attr,
484 char *buf)
485 {
486 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
487 int nr = sensor_attr->index;
488 struct w83792d_data *data = w83792d_update_device(dev);
489 return sprintf(buf, "%d\n", TEMP1_FROM_REG(data->temp1[nr]));
490 }
491
492 static ssize_t store_temp1(struct device *dev, struct device_attribute *attr,
493 const char *buf, size_t count)
494 {
495 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
496 int nr = sensor_attr->index;
497 struct i2c_client *client = to_i2c_client(dev);
498 struct w83792d_data *data = i2c_get_clientdata(client);
499 s32 val;
500
501 val = simple_strtol(buf, NULL, 10);
502 mutex_lock(&data->update_lock);
503 data->temp1[nr] = TEMP1_TO_REG(val);
504 w83792d_write_value(client, W83792D_REG_TEMP1[nr],
505 data->temp1[nr]);
506 mutex_unlock(&data->update_lock);
507
508 return count;
509 }
510
511 /* read/write the temperature2-3, includes measured value and limits */
512
513 static ssize_t show_temp23(struct device *dev, struct device_attribute *attr,
514 char *buf)
515 {
516 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
517 int nr = sensor_attr->nr;
518 int index = sensor_attr->index;
519 struct w83792d_data *data = w83792d_update_device(dev);
520 return sprintf(buf,"%ld\n",
521 (long)TEMP_ADD_FROM_REG(data->temp_add[nr][index],
522 data->temp_add[nr][index+1]));
523 }
524
525 static ssize_t store_temp23(struct device *dev, struct device_attribute *attr,
526 const char *buf, size_t count)
527 {
528 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
529 int nr = sensor_attr->nr;
530 int index = sensor_attr->index;
531 struct i2c_client *client = to_i2c_client(dev);
532 struct w83792d_data *data = i2c_get_clientdata(client);
533 s32 val;
534
535 val = simple_strtol(buf, NULL, 10);
536 mutex_lock(&data->update_lock);
537 data->temp_add[nr][index] = TEMP_ADD_TO_REG_HIGH(val);
538 data->temp_add[nr][index+1] = TEMP_ADD_TO_REG_LOW(val);
539 w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index],
540 data->temp_add[nr][index]);
541 w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index+1],
542 data->temp_add[nr][index+1]);
543 mutex_unlock(&data->update_lock);
544
545 return count;
546 }
547
548 /* get reatime status of all sensors items: voltage, temp, fan */
549 static ssize_t
550 show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf)
551 {
552 struct w83792d_data *data = w83792d_update_device(dev);
553 return sprintf(buf, "%d\n", data->alarms);
554 }
555
556 static ssize_t show_alarm(struct device *dev,
557 struct device_attribute *attr, char *buf)
558 {
559 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
560 int nr = sensor_attr->index;
561 struct w83792d_data *data = w83792d_update_device(dev);
562 return sprintf(buf, "%d\n", (data->alarms >> nr) & 1);
563 }
564
565 static ssize_t
566 show_pwm(struct device *dev, struct device_attribute *attr,
567 char *buf)
568 {
569 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
570 int nr = sensor_attr->index;
571 struct w83792d_data *data = w83792d_update_device(dev);
572 return sprintf(buf, "%d\n", (data->pwm[nr] & 0x0f) << 4);
573 }
574
575 static ssize_t
576 show_pwmenable(struct device *dev, struct device_attribute *attr,
577 char *buf)
578 {
579 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
580 int nr = sensor_attr->index - 1;
581 struct w83792d_data *data = w83792d_update_device(dev);
582 long pwm_enable_tmp = 1;
583
584 switch (data->pwmenable[nr]) {
585 case 0:
586 pwm_enable_tmp = 1; /* manual mode */
587 break;
588 case 1:
589 pwm_enable_tmp = 3; /*thermal cruise/Smart Fan I */
590 break;
591 case 2:
592 pwm_enable_tmp = 2; /* Smart Fan II */
593 break;
594 }
595
596 return sprintf(buf, "%ld\n", pwm_enable_tmp);
597 }
598
599 static ssize_t
600 store_pwm(struct device *dev, struct device_attribute *attr,
601 const char *buf, size_t count)
602 {
603 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
604 int nr = sensor_attr->index;
605 struct i2c_client *client = to_i2c_client(dev);
606 struct w83792d_data *data = i2c_get_clientdata(client);
607 u8 val = SENSORS_LIMIT(simple_strtoul(buf, NULL, 10), 0, 255) >> 4;
608
609 mutex_lock(&data->update_lock);
610 val |= w83792d_read_value(client, W83792D_REG_PWM[nr]) & 0xf0;
611 data->pwm[nr] = val;
612 w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]);
613 mutex_unlock(&data->update_lock);
614
615 return count;
616 }
617
618 static ssize_t
619 store_pwmenable(struct device *dev, struct device_attribute *attr,
620 const char *buf, size_t count)
621 {
622 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
623 int nr = sensor_attr->index - 1;
624 struct i2c_client *client = to_i2c_client(dev);
625 struct w83792d_data *data = i2c_get_clientdata(client);
626 u32 val;
627 u8 fan_cfg_tmp, cfg1_tmp, cfg2_tmp, cfg3_tmp, cfg4_tmp;
628
629 val = simple_strtoul(buf, NULL, 10);
630 if (val < 1 || val > 3)
631 return -EINVAL;
632
633 mutex_lock(&data->update_lock);
634 switch (val) {
635 case 1:
636 data->pwmenable[nr] = 0; /* manual mode */
637 break;
638 case 2:
639 data->pwmenable[nr] = 2; /* Smart Fan II */
640 break;
641 case 3:
642 data->pwmenable[nr] = 1; /* thermal cruise/Smart Fan I */
643 break;
644 }
645 cfg1_tmp = data->pwmenable[0];
646 cfg2_tmp = (data->pwmenable[1]) << 2;
647 cfg3_tmp = (data->pwmenable[2]) << 4;
648 cfg4_tmp = w83792d_read_value(client,W83792D_REG_FAN_CFG) & 0xc0;
649 fan_cfg_tmp = ((cfg4_tmp | cfg3_tmp) | cfg2_tmp) | cfg1_tmp;
650 w83792d_write_value(client, W83792D_REG_FAN_CFG, fan_cfg_tmp);
651 mutex_unlock(&data->update_lock);
652
653 return count;
654 }
655
656 static ssize_t
657 show_pwm_mode(struct device *dev, struct device_attribute *attr,
658 char *buf)
659 {
660 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
661 int nr = sensor_attr->index;
662 struct w83792d_data *data = w83792d_update_device(dev);
663 return sprintf(buf, "%d\n", data->pwm[nr] >> 7);
664 }
665
666 static ssize_t
667 store_pwm_mode(struct device *dev, struct device_attribute *attr,
668 const char *buf, size_t count)
669 {
670 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
671 int nr = sensor_attr->index;
672 struct i2c_client *client = to_i2c_client(dev);
673 struct w83792d_data *data = i2c_get_clientdata(client);
674 u32 val;
675
676 val = simple_strtoul(buf, NULL, 10);
677 if (val != 0 && val != 1)
678 return -EINVAL;
679
680 mutex_lock(&data->update_lock);
681 data->pwm[nr] = w83792d_read_value(client, W83792D_REG_PWM[nr]);
682 if (val) { /* PWM mode */
683 data->pwm[nr] |= 0x80;
684 } else { /* DC mode */
685 data->pwm[nr] &= 0x7f;
686 }
687 w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]);
688 mutex_unlock(&data->update_lock);
689
690 return count;
691 }
692
693 static ssize_t
694 show_chassis(struct device *dev, struct device_attribute *attr,
695 char *buf)
696 {
697 struct w83792d_data *data = w83792d_update_device(dev);
698 return sprintf(buf, "%d\n", data->chassis);
699 }
700
701 static ssize_t
702 show_regs_chassis(struct device *dev, struct device_attribute *attr,
703 char *buf)
704 {
705 dev_warn(dev,
706 "Attribute %s is deprecated, use intrusion0_alarm instead\n",
707 "chassis");
708 return show_chassis(dev, attr, buf);
709 }
710
711 static ssize_t
712 show_chassis_clear(struct device *dev, struct device_attribute *attr, char *buf)
713 {
714 struct w83792d_data *data = w83792d_update_device(dev);
715 return sprintf(buf, "%d\n", data->chassis_clear);
716 }
717
718 static ssize_t
719 store_chassis_clear_legacy(struct device *dev, struct device_attribute *attr,
720 const char *buf, size_t count)
721 {
722 struct i2c_client *client = to_i2c_client(dev);
723 struct w83792d_data *data = i2c_get_clientdata(client);
724 u32 val;
725 u8 temp1 = 0, temp2 = 0;
726
727 dev_warn(dev,
728 "Attribute %s is deprecated, use intrusion0_alarm instead\n",
729 "chassis_clear");
730
731 val = simple_strtoul(buf, NULL, 10);
732 mutex_lock(&data->update_lock);
733 data->chassis_clear = SENSORS_LIMIT(val, 0 ,1);
734 temp1 = ((data->chassis_clear) << 7) & 0x80;
735 temp2 = w83792d_read_value(client,
736 W83792D_REG_CHASSIS_CLR) & 0x7f;
737 w83792d_write_value(client, W83792D_REG_CHASSIS_CLR, temp1 | temp2);
738 mutex_unlock(&data->update_lock);
739
740 return count;
741 }
742
743 static ssize_t
744 store_chassis_clear(struct device *dev, struct device_attribute *attr,
745 const char *buf, size_t count)
746 {
747 struct i2c_client *client = to_i2c_client(dev);
748 struct w83792d_data *data = i2c_get_clientdata(client);
749 unsigned long val;
750 u8 reg;
751
752 if (kstrtoul(buf, 10, &val) || val != 0)
753 return -EINVAL;
754
755 mutex_lock(&data->update_lock);
756 reg = w83792d_read_value(client, W83792D_REG_CHASSIS_CLR);
757 w83792d_write_value(client, W83792D_REG_CHASSIS_CLR, reg | 0x80);
758 data->valid = 0; /* Force cache refresh */
759 mutex_unlock(&data->update_lock);
760
761 return count;
762 }
763
764 /* For Smart Fan I / Thermal Cruise */
765 static ssize_t
766 show_thermal_cruise(struct device *dev, struct device_attribute *attr,
767 char *buf)
768 {
769 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
770 int nr = sensor_attr->index;
771 struct w83792d_data *data = w83792d_update_device(dev);
772 return sprintf(buf, "%ld\n", (long)data->thermal_cruise[nr-1]);
773 }
774
775 static ssize_t
776 store_thermal_cruise(struct device *dev, struct device_attribute *attr,
777 const char *buf, size_t count)
778 {
779 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
780 int nr = sensor_attr->index - 1;
781 struct i2c_client *client = to_i2c_client(dev);
782 struct w83792d_data *data = i2c_get_clientdata(client);
783 u32 val;
784 u8 target_tmp=0, target_mask=0;
785
786 val = simple_strtoul(buf, NULL, 10);
787 target_tmp = val;
788 target_tmp = target_tmp & 0x7f;
789 mutex_lock(&data->update_lock);
790 target_mask = w83792d_read_value(client, W83792D_REG_THERMAL[nr]) & 0x80;
791 data->thermal_cruise[nr] = SENSORS_LIMIT(target_tmp, 0, 255);
792 w83792d_write_value(client, W83792D_REG_THERMAL[nr],
793 (data->thermal_cruise[nr]) | target_mask);
794 mutex_unlock(&data->update_lock);
795
796 return count;
797 }
798
799 /* For Smart Fan I/Thermal Cruise and Smart Fan II */
800 static ssize_t
801 show_tolerance(struct device *dev, struct device_attribute *attr,
802 char *buf)
803 {
804 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
805 int nr = sensor_attr->index;
806 struct w83792d_data *data = w83792d_update_device(dev);
807 return sprintf(buf, "%ld\n", (long)data->tolerance[nr-1]);
808 }
809
810 static ssize_t
811 store_tolerance(struct device *dev, struct device_attribute *attr,
812 const char *buf, size_t count)
813 {
814 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
815 int nr = sensor_attr->index - 1;
816 struct i2c_client *client = to_i2c_client(dev);
817 struct w83792d_data *data = i2c_get_clientdata(client);
818 u32 val;
819 u8 tol_tmp, tol_mask;
820
821 val = simple_strtoul(buf, NULL, 10);
822 mutex_lock(&data->update_lock);
823 tol_mask = w83792d_read_value(client,
824 W83792D_REG_TOLERANCE[nr]) & ((nr == 1) ? 0x0f : 0xf0);
825 tol_tmp = SENSORS_LIMIT(val, 0, 15);
826 tol_tmp &= 0x0f;
827 data->tolerance[nr] = tol_tmp;
828 if (nr == 1) {
829 tol_tmp <<= 4;
830 }
831 w83792d_write_value(client, W83792D_REG_TOLERANCE[nr],
832 tol_mask | tol_tmp);
833 mutex_unlock(&data->update_lock);
834
835 return count;
836 }
837
838 /* For Smart Fan II */
839 static ssize_t
840 show_sf2_point(struct device *dev, struct device_attribute *attr,
841 char *buf)
842 {
843 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
844 int nr = sensor_attr->nr;
845 int index = sensor_attr->index;
846 struct w83792d_data *data = w83792d_update_device(dev);
847 return sprintf(buf, "%ld\n", (long)data->sf2_points[index-1][nr-1]);
848 }
849
850 static ssize_t
851 store_sf2_point(struct device *dev, struct device_attribute *attr,
852 const char *buf, size_t count)
853 {
854 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
855 int nr = sensor_attr->nr - 1;
856 int index = sensor_attr->index - 1;
857 struct i2c_client *client = to_i2c_client(dev);
858 struct w83792d_data *data = i2c_get_clientdata(client);
859 u32 val;
860 u8 mask_tmp = 0;
861
862 val = simple_strtoul(buf, NULL, 10);
863 mutex_lock(&data->update_lock);
864 data->sf2_points[index][nr] = SENSORS_LIMIT(val, 0, 127);
865 mask_tmp = w83792d_read_value(client,
866 W83792D_REG_POINTS[index][nr]) & 0x80;
867 w83792d_write_value(client, W83792D_REG_POINTS[index][nr],
868 mask_tmp|data->sf2_points[index][nr]);
869 mutex_unlock(&data->update_lock);
870
871 return count;
872 }
873
874 static ssize_t
875 show_sf2_level(struct device *dev, struct device_attribute *attr,
876 char *buf)
877 {
878 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
879 int nr = sensor_attr->nr;
880 int index = sensor_attr->index;
881 struct w83792d_data *data = w83792d_update_device(dev);
882 return sprintf(buf, "%d\n",
883 (((data->sf2_levels[index-1][nr]) * 100) / 15));
884 }
885
886 static ssize_t
887 store_sf2_level(struct device *dev, struct device_attribute *attr,
888 const char *buf, size_t count)
889 {
890 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
891 int nr = sensor_attr->nr;
892 int index = sensor_attr->index - 1;
893 struct i2c_client *client = to_i2c_client(dev);
894 struct w83792d_data *data = i2c_get_clientdata(client);
895 u32 val;
896 u8 mask_tmp=0, level_tmp=0;
897
898 val = simple_strtoul(buf, NULL, 10);
899 mutex_lock(&data->update_lock);
900 data->sf2_levels[index][nr] = SENSORS_LIMIT((val * 15) / 100, 0, 15);
901 mask_tmp = w83792d_read_value(client, W83792D_REG_LEVELS[index][nr])
902 & ((nr==3) ? 0xf0 : 0x0f);
903 if (nr==3) {
904 level_tmp = data->sf2_levels[index][nr];
905 } else {
906 level_tmp = data->sf2_levels[index][nr] << 4;
907 }
908 w83792d_write_value(client, W83792D_REG_LEVELS[index][nr], level_tmp | mask_tmp);
909 mutex_unlock(&data->update_lock);
910
911 return count;
912 }
913
914
915 static int
916 w83792d_detect_subclients(struct i2c_client *new_client)
917 {
918 int i, id, err;
919 int address = new_client->addr;
920 u8 val;
921 struct i2c_adapter *adapter = new_client->adapter;
922 struct w83792d_data *data = i2c_get_clientdata(new_client);
923
924 id = i2c_adapter_id(adapter);
925 if (force_subclients[0] == id && force_subclients[1] == address) {
926 for (i = 2; i <= 3; i++) {
927 if (force_subclients[i] < 0x48 ||
928 force_subclients[i] > 0x4f) {
929 dev_err(&new_client->dev, "invalid subclient "
930 "address %d; must be 0x48-0x4f\n",
931 force_subclients[i]);
932 err = -ENODEV;
933 goto ERROR_SC_0;
934 }
935 }
936 w83792d_write_value(new_client, W83792D_REG_I2C_SUBADDR,
937 (force_subclients[2] & 0x07) |
938 ((force_subclients[3] & 0x07) << 4));
939 }
940
941 val = w83792d_read_value(new_client, W83792D_REG_I2C_SUBADDR);
942 if (!(val & 0x08)) {
943 data->lm75[0] = i2c_new_dummy(adapter, 0x48 + (val & 0x7));
944 }
945 if (!(val & 0x80)) {
946 if ((data->lm75[0] != NULL) &&
947 ((val & 0x7) == ((val >> 4) & 0x7))) {
948 dev_err(&new_client->dev, "duplicate addresses 0x%x, "
949 "use force_subclient\n", data->lm75[0]->addr);
950 err = -ENODEV;
951 goto ERROR_SC_1;
952 }
953 data->lm75[1] = i2c_new_dummy(adapter,
954 0x48 + ((val >> 4) & 0x7));
955 }
956
957 return 0;
958
959 /* Undo inits in case of errors */
960
961 ERROR_SC_1:
962 if (data->lm75[0] != NULL)
963 i2c_unregister_device(data->lm75[0]);
964 ERROR_SC_0:
965 return err;
966 }
967
968 static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0);
969 static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1);
970 static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2);
971 static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3);
972 static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 4);
973 static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 5);
974 static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 6);
975 static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 7);
976 static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_in, NULL, 8);
977 static SENSOR_DEVICE_ATTR(in0_min, S_IWUSR | S_IRUGO,
978 show_in_min, store_in_min, 0);
979 static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO,
980 show_in_min, store_in_min, 1);
981 static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO,
982 show_in_min, store_in_min, 2);
983 static SENSOR_DEVICE_ATTR(in3_min, S_IWUSR | S_IRUGO,
984 show_in_min, store_in_min, 3);
985 static SENSOR_DEVICE_ATTR(in4_min, S_IWUSR | S_IRUGO,
986 show_in_min, store_in_min, 4);
987 static SENSOR_DEVICE_ATTR(in5_min, S_IWUSR | S_IRUGO,
988 show_in_min, store_in_min, 5);
989 static SENSOR_DEVICE_ATTR(in6_min, S_IWUSR | S_IRUGO,
990 show_in_min, store_in_min, 6);
991 static SENSOR_DEVICE_ATTR(in7_min, S_IWUSR | S_IRUGO,
992 show_in_min, store_in_min, 7);
993 static SENSOR_DEVICE_ATTR(in8_min, S_IWUSR | S_IRUGO,
994 show_in_min, store_in_min, 8);
995 static SENSOR_DEVICE_ATTR(in0_max, S_IWUSR | S_IRUGO,
996 show_in_max, store_in_max, 0);
997 static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO,
998 show_in_max, store_in_max, 1);
999 static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO,
1000 show_in_max, store_in_max, 2);
1001 static SENSOR_DEVICE_ATTR(in3_max, S_IWUSR | S_IRUGO,
1002 show_in_max, store_in_max, 3);
1003 static SENSOR_DEVICE_ATTR(in4_max, S_IWUSR | S_IRUGO,
1004 show_in_max, store_in_max, 4);
1005 static SENSOR_DEVICE_ATTR(in5_max, S_IWUSR | S_IRUGO,
1006 show_in_max, store_in_max, 5);
1007 static SENSOR_DEVICE_ATTR(in6_max, S_IWUSR | S_IRUGO,
1008 show_in_max, store_in_max, 6);
1009 static SENSOR_DEVICE_ATTR(in7_max, S_IWUSR | S_IRUGO,
1010 show_in_max, store_in_max, 7);
1011 static SENSOR_DEVICE_ATTR(in8_max, S_IWUSR | S_IRUGO,
1012 show_in_max, store_in_max, 8);
1013 static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp1, NULL, 0, 0);
1014 static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp23, NULL, 0, 0);
1015 static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp23, NULL, 1, 0);
1016 static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR,
1017 show_temp1, store_temp1, 0, 1);
1018 static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp23,
1019 store_temp23, 0, 2);
1020 static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp23,
1021 store_temp23, 1, 2);
1022 static SENSOR_DEVICE_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR,
1023 show_temp1, store_temp1, 0, 2);
1024 static SENSOR_DEVICE_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR,
1025 show_temp23, store_temp23, 0, 4);
1026 static SENSOR_DEVICE_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR,
1027 show_temp23, store_temp23, 1, 4);
1028 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
1029 static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
1030 static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
1031 static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 2);
1032 static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 3);
1033 static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 4);
1034 static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 5);
1035 static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 6);
1036 static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 7);
1037 static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 8);
1038 static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 9);
1039 static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 10);
1040 static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 11);
1041 static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 12);
1042 static SENSOR_DEVICE_ATTR(fan7_alarm, S_IRUGO, show_alarm, NULL, 15);
1043 static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 19);
1044 static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 20);
1045 static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 21);
1046 static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 22);
1047 static SENSOR_DEVICE_ATTR(fan6_alarm, S_IRUGO, show_alarm, NULL, 23);
1048 static DEVICE_ATTR(chassis, S_IRUGO, show_regs_chassis, NULL);
1049 static DEVICE_ATTR(chassis_clear, S_IRUGO | S_IWUSR,
1050 show_chassis_clear, store_chassis_clear_legacy);
1051 static DEVICE_ATTR(intrusion0_alarm, S_IRUGO | S_IWUSR,
1052 show_chassis, store_chassis_clear);
1053 static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0);
1054 static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1);
1055 static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2);
1056 static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO,
1057 show_pwmenable, store_pwmenable, 1);
1058 static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO,
1059 show_pwmenable, store_pwmenable, 2);
1060 static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO,
1061 show_pwmenable, store_pwmenable, 3);
1062 static SENSOR_DEVICE_ATTR(pwm1_mode, S_IWUSR | S_IRUGO,
1063 show_pwm_mode, store_pwm_mode, 0);
1064 static SENSOR_DEVICE_ATTR(pwm2_mode, S_IWUSR | S_IRUGO,
1065 show_pwm_mode, store_pwm_mode, 1);
1066 static SENSOR_DEVICE_ATTR(pwm3_mode, S_IWUSR | S_IRUGO,
1067 show_pwm_mode, store_pwm_mode, 2);
1068 static SENSOR_DEVICE_ATTR(tolerance1, S_IWUSR | S_IRUGO,
1069 show_tolerance, store_tolerance, 1);
1070 static SENSOR_DEVICE_ATTR(tolerance2, S_IWUSR | S_IRUGO,
1071 show_tolerance, store_tolerance, 2);
1072 static SENSOR_DEVICE_ATTR(tolerance3, S_IWUSR | S_IRUGO,
1073 show_tolerance, store_tolerance, 3);
1074 static SENSOR_DEVICE_ATTR(thermal_cruise1, S_IWUSR | S_IRUGO,
1075 show_thermal_cruise, store_thermal_cruise, 1);
1076 static SENSOR_DEVICE_ATTR(thermal_cruise2, S_IWUSR | S_IRUGO,
1077 show_thermal_cruise, store_thermal_cruise, 2);
1078 static SENSOR_DEVICE_ATTR(thermal_cruise3, S_IWUSR | S_IRUGO,
1079 show_thermal_cruise, store_thermal_cruise, 3);
1080 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan1, S_IRUGO | S_IWUSR,
1081 show_sf2_point, store_sf2_point, 1, 1);
1082 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan1, S_IRUGO | S_IWUSR,
1083 show_sf2_point, store_sf2_point, 2, 1);
1084 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan1, S_IRUGO | S_IWUSR,
1085 show_sf2_point, store_sf2_point, 3, 1);
1086 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan1, S_IRUGO | S_IWUSR,
1087 show_sf2_point, store_sf2_point, 4, 1);
1088 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan2, S_IRUGO | S_IWUSR,
1089 show_sf2_point, store_sf2_point, 1, 2);
1090 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan2, S_IRUGO | S_IWUSR,
1091 show_sf2_point, store_sf2_point, 2, 2);
1092 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan2, S_IRUGO | S_IWUSR,
1093 show_sf2_point, store_sf2_point, 3, 2);
1094 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan2, S_IRUGO | S_IWUSR,
1095 show_sf2_point, store_sf2_point, 4, 2);
1096 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan3, S_IRUGO | S_IWUSR,
1097 show_sf2_point, store_sf2_point, 1, 3);
1098 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan3, S_IRUGO | S_IWUSR,
1099 show_sf2_point, store_sf2_point, 2, 3);
1100 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan3, S_IRUGO | S_IWUSR,
1101 show_sf2_point, store_sf2_point, 3, 3);
1102 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan3, S_IRUGO | S_IWUSR,
1103 show_sf2_point, store_sf2_point, 4, 3);
1104 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan1, S_IRUGO | S_IWUSR,
1105 show_sf2_level, store_sf2_level, 1, 1);
1106 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan1, S_IRUGO | S_IWUSR,
1107 show_sf2_level, store_sf2_level, 2, 1);
1108 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan1, S_IRUGO | S_IWUSR,
1109 show_sf2_level, store_sf2_level, 3, 1);
1110 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan2, S_IRUGO | S_IWUSR,
1111 show_sf2_level, store_sf2_level, 1, 2);
1112 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan2, S_IRUGO | S_IWUSR,
1113 show_sf2_level, store_sf2_level, 2, 2);
1114 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan2, S_IRUGO | S_IWUSR,
1115 show_sf2_level, store_sf2_level, 3, 2);
1116 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan3, S_IRUGO | S_IWUSR,
1117 show_sf2_level, store_sf2_level, 1, 3);
1118 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan3, S_IRUGO | S_IWUSR,
1119 show_sf2_level, store_sf2_level, 2, 3);
1120 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan3, S_IRUGO | S_IWUSR,
1121 show_sf2_level, store_sf2_level, 3, 3);
1122 static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 1);
1123 static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 2);
1124 static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 3);
1125 static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 4);
1126 static SENSOR_DEVICE_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 5);
1127 static SENSOR_DEVICE_ATTR(fan6_input, S_IRUGO, show_fan, NULL, 6);
1128 static SENSOR_DEVICE_ATTR(fan7_input, S_IRUGO, show_fan, NULL, 7);
1129 static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO,
1130 show_fan_min, store_fan_min, 1);
1131 static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO,
1132 show_fan_min, store_fan_min, 2);
1133 static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO,
1134 show_fan_min, store_fan_min, 3);
1135 static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO,
1136 show_fan_min, store_fan_min, 4);
1137 static SENSOR_DEVICE_ATTR(fan5_min, S_IWUSR | S_IRUGO,
1138 show_fan_min, store_fan_min, 5);
1139 static SENSOR_DEVICE_ATTR(fan6_min, S_IWUSR | S_IRUGO,
1140 show_fan_min, store_fan_min, 6);
1141 static SENSOR_DEVICE_ATTR(fan7_min, S_IWUSR | S_IRUGO,
1142 show_fan_min, store_fan_min, 7);
1143 static SENSOR_DEVICE_ATTR(fan1_div, S_IWUSR | S_IRUGO,
1144 show_fan_div, store_fan_div, 1);
1145 static SENSOR_DEVICE_ATTR(fan2_div, S_IWUSR | S_IRUGO,
1146 show_fan_div, store_fan_div, 2);
1147 static SENSOR_DEVICE_ATTR(fan3_div, S_IWUSR | S_IRUGO,
1148 show_fan_div, store_fan_div, 3);
1149 static SENSOR_DEVICE_ATTR(fan4_div, S_IWUSR | S_IRUGO,
1150 show_fan_div, store_fan_div, 4);
1151 static SENSOR_DEVICE_ATTR(fan5_div, S_IWUSR | S_IRUGO,
1152 show_fan_div, store_fan_div, 5);
1153 static SENSOR_DEVICE_ATTR(fan6_div, S_IWUSR | S_IRUGO,
1154 show_fan_div, store_fan_div, 6);
1155 static SENSOR_DEVICE_ATTR(fan7_div, S_IWUSR | S_IRUGO,
1156 show_fan_div, store_fan_div, 7);
1157
1158 static struct attribute *w83792d_attributes_fan[4][5] = {
1159 {
1160 &sensor_dev_attr_fan4_input.dev_attr.attr,
1161 &sensor_dev_attr_fan4_min.dev_attr.attr,
1162 &sensor_dev_attr_fan4_div.dev_attr.attr,
1163 &sensor_dev_attr_fan4_alarm.dev_attr.attr,
1164 NULL
1165 }, {
1166 &sensor_dev_attr_fan5_input.dev_attr.attr,
1167 &sensor_dev_attr_fan5_min.dev_attr.attr,
1168 &sensor_dev_attr_fan5_div.dev_attr.attr,
1169 &sensor_dev_attr_fan5_alarm.dev_attr.attr,
1170 NULL
1171 }, {
1172 &sensor_dev_attr_fan6_input.dev_attr.attr,
1173 &sensor_dev_attr_fan6_min.dev_attr.attr,
1174 &sensor_dev_attr_fan6_div.dev_attr.attr,
1175 &sensor_dev_attr_fan6_alarm.dev_attr.attr,
1176 NULL
1177 }, {
1178 &sensor_dev_attr_fan7_input.dev_attr.attr,
1179 &sensor_dev_attr_fan7_min.dev_attr.attr,
1180 &sensor_dev_attr_fan7_div.dev_attr.attr,
1181 &sensor_dev_attr_fan7_alarm.dev_attr.attr,
1182 NULL
1183 }
1184 };
1185
1186 static const struct attribute_group w83792d_group_fan[4] = {
1187 { .attrs = w83792d_attributes_fan[0] },
1188 { .attrs = w83792d_attributes_fan[1] },
1189 { .attrs = w83792d_attributes_fan[2] },
1190 { .attrs = w83792d_attributes_fan[3] },
1191 };
1192
1193 static struct attribute *w83792d_attributes[] = {
1194 &sensor_dev_attr_in0_input.dev_attr.attr,
1195 &sensor_dev_attr_in0_max.dev_attr.attr,
1196 &sensor_dev_attr_in0_min.dev_attr.attr,
1197 &sensor_dev_attr_in1_input.dev_attr.attr,
1198 &sensor_dev_attr_in1_max.dev_attr.attr,
1199 &sensor_dev_attr_in1_min.dev_attr.attr,
1200 &sensor_dev_attr_in2_input.dev_attr.attr,
1201 &sensor_dev_attr_in2_max.dev_attr.attr,
1202 &sensor_dev_attr_in2_min.dev_attr.attr,
1203 &sensor_dev_attr_in3_input.dev_attr.attr,
1204 &sensor_dev_attr_in3_max.dev_attr.attr,
1205 &sensor_dev_attr_in3_min.dev_attr.attr,
1206 &sensor_dev_attr_in4_input.dev_attr.attr,
1207 &sensor_dev_attr_in4_max.dev_attr.attr,
1208 &sensor_dev_attr_in4_min.dev_attr.attr,
1209 &sensor_dev_attr_in5_input.dev_attr.attr,
1210 &sensor_dev_attr_in5_max.dev_attr.attr,
1211 &sensor_dev_attr_in5_min.dev_attr.attr,
1212 &sensor_dev_attr_in6_input.dev_attr.attr,
1213 &sensor_dev_attr_in6_max.dev_attr.attr,
1214 &sensor_dev_attr_in6_min.dev_attr.attr,
1215 &sensor_dev_attr_in7_input.dev_attr.attr,
1216 &sensor_dev_attr_in7_max.dev_attr.attr,
1217 &sensor_dev_attr_in7_min.dev_attr.attr,
1218 &sensor_dev_attr_in8_input.dev_attr.attr,
1219 &sensor_dev_attr_in8_max.dev_attr.attr,
1220 &sensor_dev_attr_in8_min.dev_attr.attr,
1221 &sensor_dev_attr_in0_alarm.dev_attr.attr,
1222 &sensor_dev_attr_in1_alarm.dev_attr.attr,
1223 &sensor_dev_attr_in2_alarm.dev_attr.attr,
1224 &sensor_dev_attr_in3_alarm.dev_attr.attr,
1225 &sensor_dev_attr_in4_alarm.dev_attr.attr,
1226 &sensor_dev_attr_in5_alarm.dev_attr.attr,
1227 &sensor_dev_attr_in6_alarm.dev_attr.attr,
1228 &sensor_dev_attr_in7_alarm.dev_attr.attr,
1229 &sensor_dev_attr_in8_alarm.dev_attr.attr,
1230 &sensor_dev_attr_temp1_input.dev_attr.attr,
1231 &sensor_dev_attr_temp1_max.dev_attr.attr,
1232 &sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
1233 &sensor_dev_attr_temp2_input.dev_attr.attr,
1234 &sensor_dev_attr_temp2_max.dev_attr.attr,
1235 &sensor_dev_attr_temp2_max_hyst.dev_attr.attr,
1236 &sensor_dev_attr_temp3_input.dev_attr.attr,
1237 &sensor_dev_attr_temp3_max.dev_attr.attr,
1238 &sensor_dev_attr_temp3_max_hyst.dev_attr.attr,
1239 &sensor_dev_attr_temp1_alarm.dev_attr.attr,
1240 &sensor_dev_attr_temp2_alarm.dev_attr.attr,
1241 &sensor_dev_attr_temp3_alarm.dev_attr.attr,
1242 &sensor_dev_attr_pwm1.dev_attr.attr,
1243 &sensor_dev_attr_pwm1_mode.dev_attr.attr,
1244 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
1245 &sensor_dev_attr_pwm2.dev_attr.attr,
1246 &sensor_dev_attr_pwm2_mode.dev_attr.attr,
1247 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
1248 &sensor_dev_attr_pwm3.dev_attr.attr,
1249 &sensor_dev_attr_pwm3_mode.dev_attr.attr,
1250 &sensor_dev_attr_pwm3_enable.dev_attr.attr,
1251 &dev_attr_alarms.attr,
1252 &dev_attr_chassis.attr,
1253 &dev_attr_chassis_clear.attr,
1254 &dev_attr_intrusion0_alarm.attr,
1255 &sensor_dev_attr_tolerance1.dev_attr.attr,
1256 &sensor_dev_attr_thermal_cruise1.dev_attr.attr,
1257 &sensor_dev_attr_tolerance2.dev_attr.attr,
1258 &sensor_dev_attr_thermal_cruise2.dev_attr.attr,
1259 &sensor_dev_attr_tolerance3.dev_attr.attr,
1260 &sensor_dev_attr_thermal_cruise3.dev_attr.attr,
1261 &sensor_dev_attr_sf2_point1_fan1.dev_attr.attr,
1262 &sensor_dev_attr_sf2_point2_fan1.dev_attr.attr,
1263 &sensor_dev_attr_sf2_point3_fan1.dev_attr.attr,
1264 &sensor_dev_attr_sf2_point4_fan1.dev_attr.attr,
1265 &sensor_dev_attr_sf2_point1_fan2.dev_attr.attr,
1266 &sensor_dev_attr_sf2_point2_fan2.dev_attr.attr,
1267 &sensor_dev_attr_sf2_point3_fan2.dev_attr.attr,
1268 &sensor_dev_attr_sf2_point4_fan2.dev_attr.attr,
1269 &sensor_dev_attr_sf2_point1_fan3.dev_attr.attr,
1270 &sensor_dev_attr_sf2_point2_fan3.dev_attr.attr,
1271 &sensor_dev_attr_sf2_point3_fan3.dev_attr.attr,
1272 &sensor_dev_attr_sf2_point4_fan3.dev_attr.attr,
1273 &sensor_dev_attr_sf2_level1_fan1.dev_attr.attr,
1274 &sensor_dev_attr_sf2_level2_fan1.dev_attr.attr,
1275 &sensor_dev_attr_sf2_level3_fan1.dev_attr.attr,
1276 &sensor_dev_attr_sf2_level1_fan2.dev_attr.attr,
1277 &sensor_dev_attr_sf2_level2_fan2.dev_attr.attr,
1278 &sensor_dev_attr_sf2_level3_fan2.dev_attr.attr,
1279 &sensor_dev_attr_sf2_level1_fan3.dev_attr.attr,
1280 &sensor_dev_attr_sf2_level2_fan3.dev_attr.attr,
1281 &sensor_dev_attr_sf2_level3_fan3.dev_attr.attr,
1282 &sensor_dev_attr_fan1_input.dev_attr.attr,
1283 &sensor_dev_attr_fan1_min.dev_attr.attr,
1284 &sensor_dev_attr_fan1_div.dev_attr.attr,
1285 &sensor_dev_attr_fan1_alarm.dev_attr.attr,
1286 &sensor_dev_attr_fan2_input.dev_attr.attr,
1287 &sensor_dev_attr_fan2_min.dev_attr.attr,
1288 &sensor_dev_attr_fan2_div.dev_attr.attr,
1289 &sensor_dev_attr_fan2_alarm.dev_attr.attr,
1290 &sensor_dev_attr_fan3_input.dev_attr.attr,
1291 &sensor_dev_attr_fan3_min.dev_attr.attr,
1292 &sensor_dev_attr_fan3_div.dev_attr.attr,
1293 &sensor_dev_attr_fan3_alarm.dev_attr.attr,
1294 NULL
1295 };
1296
1297 static const struct attribute_group w83792d_group = {
1298 .attrs = w83792d_attributes,
1299 };
1300
1301 /* Return 0 if detection is successful, -ENODEV otherwise */
1302 static int
1303 w83792d_detect(struct i2c_client *client, struct i2c_board_info *info)
1304 {
1305 struct i2c_adapter *adapter = client->adapter;
1306 int val1, val2;
1307 unsigned short address = client->addr;
1308
1309 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
1310 return -ENODEV;
1311 }
1312
1313 if (w83792d_read_value(client, W83792D_REG_CONFIG) & 0x80)
1314 return -ENODEV;
1315
1316 val1 = w83792d_read_value(client, W83792D_REG_BANK);
1317 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN);
1318 /* Check for Winbond ID if in bank 0 */
1319 if (!(val1 & 0x07)) { /* is Bank0 */
1320 if ((!(val1 & 0x80) && val2 != 0xa3) ||
1321 ( (val1 & 0x80) && val2 != 0x5c))
1322 return -ENODEV;
1323 }
1324 /* If Winbond chip, address of chip and W83792D_REG_I2C_ADDR
1325 should match */
1326 if (w83792d_read_value(client, W83792D_REG_I2C_ADDR) != address)
1327 return -ENODEV;
1328
1329 /* Put it now into bank 0 and Vendor ID High Byte */
1330 w83792d_write_value(client,
1331 W83792D_REG_BANK,
1332 (w83792d_read_value(client,
1333 W83792D_REG_BANK) & 0x78) | 0x80);
1334
1335 /* Determine the chip type. */
1336 val1 = w83792d_read_value(client, W83792D_REG_WCHIPID);
1337 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN);
1338 if (val1 != 0x7a || val2 != 0x5c)
1339 return -ENODEV;
1340
1341 strlcpy(info->type, "w83792d", I2C_NAME_SIZE);
1342
1343 return 0;
1344 }
1345
1346 static int
1347 w83792d_probe(struct i2c_client *client, const struct i2c_device_id *id)
1348 {
1349 struct w83792d_data *data;
1350 struct device *dev = &client->dev;
1351 int i, val1, err;
1352
1353 data = kzalloc(sizeof(struct w83792d_data), GFP_KERNEL);
1354 if (!data) {
1355 err = -ENOMEM;
1356 goto ERROR0;
1357 }
1358
1359 i2c_set_clientdata(client, data);
1360 data->valid = 0;
1361 mutex_init(&data->update_lock);
1362
1363 err = w83792d_detect_subclients(client);
1364 if (err)
1365 goto ERROR1;
1366
1367 /* Initialize the chip */
1368 w83792d_init_client(client);
1369
1370 /* A few vars need to be filled upon startup */
1371 for (i = 0; i < 7; i++) {
1372 data->fan_min[i] = w83792d_read_value(client,
1373 W83792D_REG_FAN_MIN[i]);
1374 }
1375
1376 /* Register sysfs hooks */
1377 if ((err = sysfs_create_group(&dev->kobj, &w83792d_group)))
1378 goto ERROR3;
1379
1380 /* Read GPIO enable register to check if pins for fan 4,5 are used as
1381 GPIO */
1382 val1 = w83792d_read_value(client, W83792D_REG_GPIO_EN);
1383
1384 if (!(val1 & 0x40))
1385 if ((err = sysfs_create_group(&dev->kobj,
1386 &w83792d_group_fan[0])))
1387 goto exit_remove_files;
1388
1389 if (!(val1 & 0x20))
1390 if ((err = sysfs_create_group(&dev->kobj,
1391 &w83792d_group_fan[1])))
1392 goto exit_remove_files;
1393
1394 val1 = w83792d_read_value(client, W83792D_REG_PIN);
1395 if (val1 & 0x40)
1396 if ((err = sysfs_create_group(&dev->kobj,
1397 &w83792d_group_fan[2])))
1398 goto exit_remove_files;
1399
1400 if (val1 & 0x04)
1401 if ((err = sysfs_create_group(&dev->kobj,
1402 &w83792d_group_fan[3])))
1403 goto exit_remove_files;
1404
1405 data->hwmon_dev = hwmon_device_register(dev);
1406 if (IS_ERR(data->hwmon_dev)) {
1407 err = PTR_ERR(data->hwmon_dev);
1408 goto exit_remove_files;
1409 }
1410
1411 return 0;
1412
1413 exit_remove_files:
1414 sysfs_remove_group(&dev->kobj, &w83792d_group);
1415 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++)
1416 sysfs_remove_group(&dev->kobj, &w83792d_group_fan[i]);
1417 ERROR3:
1418 if (data->lm75[0] != NULL)
1419 i2c_unregister_device(data->lm75[0]);
1420 if (data->lm75[1] != NULL)
1421 i2c_unregister_device(data->lm75[1]);
1422 ERROR1:
1423 kfree(data);
1424 ERROR0:
1425 return err;
1426 }
1427
1428 static int
1429 w83792d_remove(struct i2c_client *client)
1430 {
1431 struct w83792d_data *data = i2c_get_clientdata(client);
1432 int i;
1433
1434 hwmon_device_unregister(data->hwmon_dev);
1435 sysfs_remove_group(&client->dev.kobj, &w83792d_group);
1436 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++)
1437 sysfs_remove_group(&client->dev.kobj,
1438 &w83792d_group_fan[i]);
1439
1440 if (data->lm75[0] != NULL)
1441 i2c_unregister_device(data->lm75[0]);
1442 if (data->lm75[1] != NULL)
1443 i2c_unregister_device(data->lm75[1]);
1444
1445 kfree(data);
1446 return 0;
1447 }
1448
1449 static void
1450 w83792d_init_client(struct i2c_client *client)
1451 {
1452 u8 temp2_cfg, temp3_cfg, vid_in_b;
1453
1454 if (init) {
1455 w83792d_write_value(client, W83792D_REG_CONFIG, 0x80);
1456 }
1457 /* Clear the bit6 of W83792D_REG_VID_IN_B(set it into 0):
1458 W83792D_REG_VID_IN_B bit6 = 0: the high/low limit of
1459 vin0/vin1 can be modified by user;
1460 W83792D_REG_VID_IN_B bit6 = 1: the high/low limit of
1461 vin0/vin1 auto-updated, can NOT be modified by user. */
1462 vid_in_b = w83792d_read_value(client, W83792D_REG_VID_IN_B);
1463 w83792d_write_value(client, W83792D_REG_VID_IN_B,
1464 vid_in_b & 0xbf);
1465
1466 temp2_cfg = w83792d_read_value(client, W83792D_REG_TEMP2_CONFIG);
1467 temp3_cfg = w83792d_read_value(client, W83792D_REG_TEMP3_CONFIG);
1468 w83792d_write_value(client, W83792D_REG_TEMP2_CONFIG,
1469 temp2_cfg & 0xe6);
1470 w83792d_write_value(client, W83792D_REG_TEMP3_CONFIG,
1471 temp3_cfg & 0xe6);
1472
1473 /* Start monitoring */
1474 w83792d_write_value(client, W83792D_REG_CONFIG,
1475 (w83792d_read_value(client,
1476 W83792D_REG_CONFIG) & 0xf7)
1477 | 0x01);
1478 }
1479
1480 static struct w83792d_data *w83792d_update_device(struct device *dev)
1481 {
1482 struct i2c_client *client = to_i2c_client(dev);
1483 struct w83792d_data *data = i2c_get_clientdata(client);
1484 int i, j;
1485 u8 reg_array_tmp[4], reg_tmp;
1486
1487 mutex_lock(&data->update_lock);
1488
1489 if (time_after
1490 (jiffies - data->last_updated, (unsigned long) (HZ * 3))
1491 || time_before(jiffies, data->last_updated) || !data->valid) {
1492 dev_dbg(dev, "Starting device update\n");
1493
1494 /* Update the voltages measured value and limits */
1495 for (i = 0; i < 9; i++) {
1496 data->in[i] = w83792d_read_value(client,
1497 W83792D_REG_IN[i]);
1498 data->in_max[i] = w83792d_read_value(client,
1499 W83792D_REG_IN_MAX[i]);
1500 data->in_min[i] = w83792d_read_value(client,
1501 W83792D_REG_IN_MIN[i]);
1502 }
1503 data->low_bits = w83792d_read_value(client,
1504 W83792D_REG_LOW_BITS1) +
1505 (w83792d_read_value(client,
1506 W83792D_REG_LOW_BITS2) << 8);
1507 for (i = 0; i < 7; i++) {
1508 /* Update the Fan measured value and limits */
1509 data->fan[i] = w83792d_read_value(client,
1510 W83792D_REG_FAN[i]);
1511 data->fan_min[i] = w83792d_read_value(client,
1512 W83792D_REG_FAN_MIN[i]);
1513 /* Update the PWM/DC Value and PWM/DC flag */
1514 data->pwm[i] = w83792d_read_value(client,
1515 W83792D_REG_PWM[i]);
1516 }
1517
1518 reg_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG);
1519 data->pwmenable[0] = reg_tmp & 0x03;
1520 data->pwmenable[1] = (reg_tmp>>2) & 0x03;
1521 data->pwmenable[2] = (reg_tmp>>4) & 0x03;
1522
1523 for (i = 0; i < 3; i++) {
1524 data->temp1[i] = w83792d_read_value(client,
1525 W83792D_REG_TEMP1[i]);
1526 }
1527 for (i = 0; i < 2; i++) {
1528 for (j = 0; j < 6; j++) {
1529 data->temp_add[i][j] = w83792d_read_value(
1530 client,W83792D_REG_TEMP_ADD[i][j]);
1531 }
1532 }
1533
1534 /* Update the Fan Divisor */
1535 for (i = 0; i < 4; i++) {
1536 reg_array_tmp[i] = w83792d_read_value(client,
1537 W83792D_REG_FAN_DIV[i]);
1538 }
1539 data->fan_div[0] = reg_array_tmp[0] & 0x07;
1540 data->fan_div[1] = (reg_array_tmp[0] >> 4) & 0x07;
1541 data->fan_div[2] = reg_array_tmp[1] & 0x07;
1542 data->fan_div[3] = (reg_array_tmp[1] >> 4) & 0x07;
1543 data->fan_div[4] = reg_array_tmp[2] & 0x07;
1544 data->fan_div[5] = (reg_array_tmp[2] >> 4) & 0x07;
1545 data->fan_div[6] = reg_array_tmp[3] & 0x07;
1546
1547 /* Update the realtime status */
1548 data->alarms = w83792d_read_value(client, W83792D_REG_ALARM1) +
1549 (w83792d_read_value(client, W83792D_REG_ALARM2) << 8) +
1550 (w83792d_read_value(client, W83792D_REG_ALARM3) << 16);
1551
1552 /* Update CaseOpen status and it's CLR_CHS. */
1553 data->chassis = (w83792d_read_value(client,
1554 W83792D_REG_CHASSIS) >> 5) & 0x01;
1555 data->chassis_clear = (w83792d_read_value(client,
1556 W83792D_REG_CHASSIS_CLR) >> 7) & 0x01;
1557
1558 /* Update Thermal Cruise/Smart Fan I target value */
1559 for (i = 0; i < 3; i++) {
1560 data->thermal_cruise[i] =
1561 w83792d_read_value(client,
1562 W83792D_REG_THERMAL[i]) & 0x7f;
1563 }
1564
1565 /* Update Smart Fan I/II tolerance */
1566 reg_tmp = w83792d_read_value(client, W83792D_REG_TOLERANCE[0]);
1567 data->tolerance[0] = reg_tmp & 0x0f;
1568 data->tolerance[1] = (reg_tmp >> 4) & 0x0f;
1569 data->tolerance[2] = w83792d_read_value(client,
1570 W83792D_REG_TOLERANCE[2]) & 0x0f;
1571
1572 /* Update Smart Fan II temperature points */
1573 for (i = 0; i < 3; i++) {
1574 for (j = 0; j < 4; j++) {
1575 data->sf2_points[i][j] = w83792d_read_value(
1576 client,W83792D_REG_POINTS[i][j]) & 0x7f;
1577 }
1578 }
1579
1580 /* Update Smart Fan II duty cycle levels */
1581 for (i = 0; i < 3; i++) {
1582 reg_tmp = w83792d_read_value(client,
1583 W83792D_REG_LEVELS[i][0]);
1584 data->sf2_levels[i][0] = reg_tmp & 0x0f;
1585 data->sf2_levels[i][1] = (reg_tmp >> 4) & 0x0f;
1586 reg_tmp = w83792d_read_value(client,
1587 W83792D_REG_LEVELS[i][2]);
1588 data->sf2_levels[i][2] = (reg_tmp >> 4) & 0x0f;
1589 data->sf2_levels[i][3] = reg_tmp & 0x0f;
1590 }
1591
1592 data->last_updated = jiffies;
1593 data->valid = 1;
1594 }
1595
1596 mutex_unlock(&data->update_lock);
1597
1598 #ifdef DEBUG
1599 w83792d_print_debug(data, dev);
1600 #endif
1601
1602 return data;
1603 }
1604
1605 #ifdef DEBUG
1606 static void w83792d_print_debug(struct w83792d_data *data, struct device *dev)
1607 {
1608 int i=0, j=0;
1609 dev_dbg(dev, "==========The following is the debug message...========\n");
1610 dev_dbg(dev, "9 set of Voltages: =====>\n");
1611 for (i=0; i<9; i++) {
1612 dev_dbg(dev, "vin[%d] is: 0x%x\n", i, data->in[i]);
1613 dev_dbg(dev, "vin[%d] max is: 0x%x\n", i, data->in_max[i]);
1614 dev_dbg(dev, "vin[%d] min is: 0x%x\n", i, data->in_min[i]);
1615 }
1616 dev_dbg(dev, "Low Bit1 is: 0x%x\n", data->low_bits & 0xff);
1617 dev_dbg(dev, "Low Bit2 is: 0x%x\n", data->low_bits >> 8);
1618 dev_dbg(dev, "7 set of Fan Counts and Duty Cycles: =====>\n");
1619 for (i=0; i<7; i++) {
1620 dev_dbg(dev, "fan[%d] is: 0x%x\n", i, data->fan[i]);
1621 dev_dbg(dev, "fan[%d] min is: 0x%x\n", i, data->fan_min[i]);
1622 dev_dbg(dev, "pwm[%d] is: 0x%x\n", i, data->pwm[i]);
1623 }
1624 dev_dbg(dev, "3 set of Temperatures: =====>\n");
1625 for (i=0; i<3; i++) {
1626 dev_dbg(dev, "temp1[%d] is: 0x%x\n", i, data->temp1[i]);
1627 }
1628
1629 for (i=0; i<2; i++) {
1630 for (j=0; j<6; j++) {
1631 dev_dbg(dev, "temp_add[%d][%d] is: 0x%x\n", i, j,
1632 data->temp_add[i][j]);
1633 }
1634 }
1635
1636 for (i=0; i<7; i++) {
1637 dev_dbg(dev, "fan_div[%d] is: 0x%x\n", i, data->fan_div[i]);
1638 }
1639 dev_dbg(dev, "==========End of the debug message...==================\n");
1640 dev_dbg(dev, "\n");
1641 }
1642 #endif
1643
1644 static int __init
1645 sensors_w83792d_init(void)
1646 {
1647 return i2c_add_driver(&w83792d_driver);
1648 }
1649
1650 static void __exit
1651 sensors_w83792d_exit(void)
1652 {
1653 i2c_del_driver(&w83792d_driver);
1654 }
1655
1656 MODULE_AUTHOR("Chunhao Huang @ Winbond <DZShen@Winbond.com.tw>");
1657 MODULE_DESCRIPTION("W83792AD/D driver for linux-2.6");
1658 MODULE_LICENSE("GPL");
1659
1660 module_init(sensors_w83792d_init);
1661 module_exit(sensors_w83792d_exit);
1662