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aio: remove unnecessary check
[linux-2.6/next.git] / drivers / hwmon / w83792d.c
blob679718e6b0173a0e0fec17b755465e1476c04cd1
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 int 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 addtional 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_regs_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_chassis_clear(struct device *dev, struct device_attribute *attr, char *buf)
703 {
704 struct w83792d_data *data = w83792d_update_device(dev);
705 return sprintf(buf, "%d\n", data->chassis_clear);
706 }
707
708 static ssize_t
709 store_chassis_clear(struct device *dev, struct device_attribute *attr,
710 const char *buf, size_t count)
711 {
712 struct i2c_client *client = to_i2c_client(dev);
713 struct w83792d_data *data = i2c_get_clientdata(client);
714 u32 val;
715 u8 temp1 = 0, temp2 = 0;
716
717 val = simple_strtoul(buf, NULL, 10);
718 mutex_lock(&data->update_lock);
719 data->chassis_clear = SENSORS_LIMIT(val, 0 ,1);
720 temp1 = ((data->chassis_clear) << 7) & 0x80;
721 temp2 = w83792d_read_value(client,
722 W83792D_REG_CHASSIS_CLR) & 0x7f;
723 w83792d_write_value(client, W83792D_REG_CHASSIS_CLR, temp1 | temp2);
724 mutex_unlock(&data->update_lock);
725
726 return count;
727 }
728
729 /* For Smart Fan I / Thermal Cruise */
730 static ssize_t
731 show_thermal_cruise(struct device *dev, struct device_attribute *attr,
732 char *buf)
733 {
734 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
735 int nr = sensor_attr->index;
736 struct w83792d_data *data = w83792d_update_device(dev);
737 return sprintf(buf, "%ld\n", (long)data->thermal_cruise[nr-1]);
738 }
739
740 static ssize_t
741 store_thermal_cruise(struct device *dev, struct device_attribute *attr,
742 const char *buf, size_t count)
743 {
744 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
745 int nr = sensor_attr->index - 1;
746 struct i2c_client *client = to_i2c_client(dev);
747 struct w83792d_data *data = i2c_get_clientdata(client);
748 u32 val;
749 u8 target_tmp=0, target_mask=0;
750
751 val = simple_strtoul(buf, NULL, 10);
752 target_tmp = val;
753 target_tmp = target_tmp & 0x7f;
754 mutex_lock(&data->update_lock);
755 target_mask = w83792d_read_value(client, W83792D_REG_THERMAL[nr]) & 0x80;
756 data->thermal_cruise[nr] = SENSORS_LIMIT(target_tmp, 0, 255);
757 w83792d_write_value(client, W83792D_REG_THERMAL[nr],
758 (data->thermal_cruise[nr]) | target_mask);
759 mutex_unlock(&data->update_lock);
760
761 return count;
762 }
763
764 /* For Smart Fan I/Thermal Cruise and Smart Fan II */
765 static ssize_t
766 show_tolerance(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->tolerance[nr-1]);
773 }
774
775 static ssize_t
776 store_tolerance(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 tol_tmp, tol_mask;
785
786 val = simple_strtoul(buf, NULL, 10);
787 mutex_lock(&data->update_lock);
788 tol_mask = w83792d_read_value(client,
789 W83792D_REG_TOLERANCE[nr]) & ((nr == 1) ? 0x0f : 0xf0);
790 tol_tmp = SENSORS_LIMIT(val, 0, 15);
791 tol_tmp &= 0x0f;
792 data->tolerance[nr] = tol_tmp;
793 if (nr == 1) {
794 tol_tmp <<= 4;
795 }
796 w83792d_write_value(client, W83792D_REG_TOLERANCE[nr],
797 tol_mask | tol_tmp);
798 mutex_unlock(&data->update_lock);
799
800 return count;
801 }
802
803 /* For Smart Fan II */
804 static ssize_t
805 show_sf2_point(struct device *dev, struct device_attribute *attr,
806 char *buf)
807 {
808 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
809 int nr = sensor_attr->nr;
810 int index = sensor_attr->index;
811 struct w83792d_data *data = w83792d_update_device(dev);
812 return sprintf(buf, "%ld\n", (long)data->sf2_points[index-1][nr-1]);
813 }
814
815 static ssize_t
816 store_sf2_point(struct device *dev, struct device_attribute *attr,
817 const char *buf, size_t count)
818 {
819 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
820 int nr = sensor_attr->nr - 1;
821 int index = sensor_attr->index - 1;
822 struct i2c_client *client = to_i2c_client(dev);
823 struct w83792d_data *data = i2c_get_clientdata(client);
824 u32 val;
825 u8 mask_tmp = 0;
826
827 val = simple_strtoul(buf, NULL, 10);
828 mutex_lock(&data->update_lock);
829 data->sf2_points[index][nr] = SENSORS_LIMIT(val, 0, 127);
830 mask_tmp = w83792d_read_value(client,
831 W83792D_REG_POINTS[index][nr]) & 0x80;
832 w83792d_write_value(client, W83792D_REG_POINTS[index][nr],
833 mask_tmp|data->sf2_points[index][nr]);
834 mutex_unlock(&data->update_lock);
835
836 return count;
837 }
838
839 static ssize_t
840 show_sf2_level(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, "%d\n",
848 (((data->sf2_levels[index-1][nr]) * 100) / 15));
849 }
850
851 static ssize_t
852 store_sf2_level(struct device *dev, struct device_attribute *attr,
853 const char *buf, size_t count)
854 {
855 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
856 int nr = sensor_attr->nr;
857 int index = sensor_attr->index - 1;
858 struct i2c_client *client = to_i2c_client(dev);
859 struct w83792d_data *data = i2c_get_clientdata(client);
860 u32 val;
861 u8 mask_tmp=0, level_tmp=0;
862
863 val = simple_strtoul(buf, NULL, 10);
864 mutex_lock(&data->update_lock);
865 data->sf2_levels[index][nr] = SENSORS_LIMIT((val * 15) / 100, 0, 15);
866 mask_tmp = w83792d_read_value(client, W83792D_REG_LEVELS[index][nr])
867 & ((nr==3) ? 0xf0 : 0x0f);
868 if (nr==3) {
869 level_tmp = data->sf2_levels[index][nr];
870 } else {
871 level_tmp = data->sf2_levels[index][nr] << 4;
872 }
873 w83792d_write_value(client, W83792D_REG_LEVELS[index][nr], level_tmp | mask_tmp);
874 mutex_unlock(&data->update_lock);
875
876 return count;
877 }
878
879
880 static int
881 w83792d_detect_subclients(struct i2c_client *new_client)
882 {
883 int i, id, err;
884 int address = new_client->addr;
885 u8 val;
886 struct i2c_adapter *adapter = new_client->adapter;
887 struct w83792d_data *data = i2c_get_clientdata(new_client);
888
889 id = i2c_adapter_id(adapter);
890 if (force_subclients[0] == id && force_subclients[1] == address) {
891 for (i = 2; i <= 3; i++) {
892 if (force_subclients[i] < 0x48 ||
893 force_subclients[i] > 0x4f) {
894 dev_err(&new_client->dev, "invalid subclient "
895 "address %d; must be 0x48-0x4f\n",
896 force_subclients[i]);
897 err = -ENODEV;
898 goto ERROR_SC_0;
899 }
900 }
901 w83792d_write_value(new_client, W83792D_REG_I2C_SUBADDR,
902 (force_subclients[2] & 0x07) |
903 ((force_subclients[3] & 0x07) << 4));
904 }
905
906 val = w83792d_read_value(new_client, W83792D_REG_I2C_SUBADDR);
907 if (!(val & 0x08)) {
908 data->lm75[0] = i2c_new_dummy(adapter, 0x48 + (val & 0x7));
909 }
910 if (!(val & 0x80)) {
911 if ((data->lm75[0] != NULL) &&
912 ((val & 0x7) == ((val >> 4) & 0x7))) {
913 dev_err(&new_client->dev, "duplicate addresses 0x%x, "
914 "use force_subclient\n", data->lm75[0]->addr);
915 err = -ENODEV;
916 goto ERROR_SC_1;
917 }
918 data->lm75[1] = i2c_new_dummy(adapter,
919 0x48 + ((val >> 4) & 0x7));
920 }
921
922 return 0;
923
924 /* Undo inits in case of errors */
925
926 ERROR_SC_1:
927 if (data->lm75[0] != NULL)
928 i2c_unregister_device(data->lm75[0]);
929 ERROR_SC_0:
930 return err;
931 }
932
933 static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0);
934 static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1);
935 static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2);
936 static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3);
937 static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 4);
938 static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 5);
939 static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 6);
940 static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 7);
941 static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_in, NULL, 8);
942 static SENSOR_DEVICE_ATTR(in0_min, S_IWUSR | S_IRUGO,
943 show_in_min, store_in_min, 0);
944 static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO,
945 show_in_min, store_in_min, 1);
946 static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO,
947 show_in_min, store_in_min, 2);
948 static SENSOR_DEVICE_ATTR(in3_min, S_IWUSR | S_IRUGO,
949 show_in_min, store_in_min, 3);
950 static SENSOR_DEVICE_ATTR(in4_min, S_IWUSR | S_IRUGO,
951 show_in_min, store_in_min, 4);
952 static SENSOR_DEVICE_ATTR(in5_min, S_IWUSR | S_IRUGO,
953 show_in_min, store_in_min, 5);
954 static SENSOR_DEVICE_ATTR(in6_min, S_IWUSR | S_IRUGO,
955 show_in_min, store_in_min, 6);
956 static SENSOR_DEVICE_ATTR(in7_min, S_IWUSR | S_IRUGO,
957 show_in_min, store_in_min, 7);
958 static SENSOR_DEVICE_ATTR(in8_min, S_IWUSR | S_IRUGO,
959 show_in_min, store_in_min, 8);
960 static SENSOR_DEVICE_ATTR(in0_max, S_IWUSR | S_IRUGO,
961 show_in_max, store_in_max, 0);
962 static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO,
963 show_in_max, store_in_max, 1);
964 static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO,
965 show_in_max, store_in_max, 2);
966 static SENSOR_DEVICE_ATTR(in3_max, S_IWUSR | S_IRUGO,
967 show_in_max, store_in_max, 3);
968 static SENSOR_DEVICE_ATTR(in4_max, S_IWUSR | S_IRUGO,
969 show_in_max, store_in_max, 4);
970 static SENSOR_DEVICE_ATTR(in5_max, S_IWUSR | S_IRUGO,
971 show_in_max, store_in_max, 5);
972 static SENSOR_DEVICE_ATTR(in6_max, S_IWUSR | S_IRUGO,
973 show_in_max, store_in_max, 6);
974 static SENSOR_DEVICE_ATTR(in7_max, S_IWUSR | S_IRUGO,
975 show_in_max, store_in_max, 7);
976 static SENSOR_DEVICE_ATTR(in8_max, S_IWUSR | S_IRUGO,
977 show_in_max, store_in_max, 8);
978 static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp1, NULL, 0, 0);
979 static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp23, NULL, 0, 0);
980 static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp23, NULL, 1, 0);
981 static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR,
982 show_temp1, store_temp1, 0, 1);
983 static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp23,
984 store_temp23, 0, 2);
985 static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp23,
986 store_temp23, 1, 2);
987 static SENSOR_DEVICE_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR,
988 show_temp1, store_temp1, 0, 2);
989 static SENSOR_DEVICE_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR,
990 show_temp23, store_temp23, 0, 4);
991 static SENSOR_DEVICE_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR,
992 show_temp23, store_temp23, 1, 4);
993 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
994 static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
995 static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
996 static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 2);
997 static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 3);
998 static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 4);
999 static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 5);
1000 static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 6);
1001 static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 7);
1002 static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 8);
1003 static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 9);
1004 static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 10);
1005 static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 11);
1006 static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 12);
1007 static SENSOR_DEVICE_ATTR(fan7_alarm, S_IRUGO, show_alarm, NULL, 15);
1008 static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 19);
1009 static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 20);
1010 static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 21);
1011 static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 22);
1012 static SENSOR_DEVICE_ATTR(fan6_alarm, S_IRUGO, show_alarm, NULL, 23);
1013 static DEVICE_ATTR(chassis, S_IRUGO, show_regs_chassis, NULL);
1014 static DEVICE_ATTR(chassis_clear, S_IRUGO | S_IWUSR,
1015 show_chassis_clear, store_chassis_clear);
1016 static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0);
1017 static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1);
1018 static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2);
1019 static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO,
1020 show_pwmenable, store_pwmenable, 1);
1021 static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO,
1022 show_pwmenable, store_pwmenable, 2);
1023 static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO,
1024 show_pwmenable, store_pwmenable, 3);
1025 static SENSOR_DEVICE_ATTR(pwm1_mode, S_IWUSR | S_IRUGO,
1026 show_pwm_mode, store_pwm_mode, 0);
1027 static SENSOR_DEVICE_ATTR(pwm2_mode, S_IWUSR | S_IRUGO,
1028 show_pwm_mode, store_pwm_mode, 1);
1029 static SENSOR_DEVICE_ATTR(pwm3_mode, S_IWUSR | S_IRUGO,
1030 show_pwm_mode, store_pwm_mode, 2);
1031 static SENSOR_DEVICE_ATTR(tolerance1, S_IWUSR | S_IRUGO,
1032 show_tolerance, store_tolerance, 1);
1033 static SENSOR_DEVICE_ATTR(tolerance2, S_IWUSR | S_IRUGO,
1034 show_tolerance, store_tolerance, 2);
1035 static SENSOR_DEVICE_ATTR(tolerance3, S_IWUSR | S_IRUGO,
1036 show_tolerance, store_tolerance, 3);
1037 static SENSOR_DEVICE_ATTR(thermal_cruise1, S_IWUSR | S_IRUGO,
1038 show_thermal_cruise, store_thermal_cruise, 1);
1039 static SENSOR_DEVICE_ATTR(thermal_cruise2, S_IWUSR | S_IRUGO,
1040 show_thermal_cruise, store_thermal_cruise, 2);
1041 static SENSOR_DEVICE_ATTR(thermal_cruise3, S_IWUSR | S_IRUGO,
1042 show_thermal_cruise, store_thermal_cruise, 3);
1043 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan1, S_IRUGO | S_IWUSR,
1044 show_sf2_point, store_sf2_point, 1, 1);
1045 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan1, S_IRUGO | S_IWUSR,
1046 show_sf2_point, store_sf2_point, 2, 1);
1047 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan1, S_IRUGO | S_IWUSR,
1048 show_sf2_point, store_sf2_point, 3, 1);
1049 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan1, S_IRUGO | S_IWUSR,
1050 show_sf2_point, store_sf2_point, 4, 1);
1051 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan2, S_IRUGO | S_IWUSR,
1052 show_sf2_point, store_sf2_point, 1, 2);
1053 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan2, S_IRUGO | S_IWUSR,
1054 show_sf2_point, store_sf2_point, 2, 2);
1055 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan2, S_IRUGO | S_IWUSR,
1056 show_sf2_point, store_sf2_point, 3, 2);
1057 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan2, S_IRUGO | S_IWUSR,
1058 show_sf2_point, store_sf2_point, 4, 2);
1059 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan3, S_IRUGO | S_IWUSR,
1060 show_sf2_point, store_sf2_point, 1, 3);
1061 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan3, S_IRUGO | S_IWUSR,
1062 show_sf2_point, store_sf2_point, 2, 3);
1063 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan3, S_IRUGO | S_IWUSR,
1064 show_sf2_point, store_sf2_point, 3, 3);
1065 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan3, S_IRUGO | S_IWUSR,
1066 show_sf2_point, store_sf2_point, 4, 3);
1067 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan1, S_IRUGO | S_IWUSR,
1068 show_sf2_level, store_sf2_level, 1, 1);
1069 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan1, S_IRUGO | S_IWUSR,
1070 show_sf2_level, store_sf2_level, 2, 1);
1071 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan1, S_IRUGO | S_IWUSR,
1072 show_sf2_level, store_sf2_level, 3, 1);
1073 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan2, S_IRUGO | S_IWUSR,
1074 show_sf2_level, store_sf2_level, 1, 2);
1075 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan2, S_IRUGO | S_IWUSR,
1076 show_sf2_level, store_sf2_level, 2, 2);
1077 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan2, S_IRUGO | S_IWUSR,
1078 show_sf2_level, store_sf2_level, 3, 2);
1079 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan3, S_IRUGO | S_IWUSR,
1080 show_sf2_level, store_sf2_level, 1, 3);
1081 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan3, S_IRUGO | S_IWUSR,
1082 show_sf2_level, store_sf2_level, 2, 3);
1083 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan3, S_IRUGO | S_IWUSR,
1084 show_sf2_level, store_sf2_level, 3, 3);
1085 static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 1);
1086 static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 2);
1087 static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 3);
1088 static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 4);
1089 static SENSOR_DEVICE_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 5);
1090 static SENSOR_DEVICE_ATTR(fan6_input, S_IRUGO, show_fan, NULL, 6);
1091 static SENSOR_DEVICE_ATTR(fan7_input, S_IRUGO, show_fan, NULL, 7);
1092 static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO,
1093 show_fan_min, store_fan_min, 1);
1094 static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO,
1095 show_fan_min, store_fan_min, 2);
1096 static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO,
1097 show_fan_min, store_fan_min, 3);
1098 static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO,
1099 show_fan_min, store_fan_min, 4);
1100 static SENSOR_DEVICE_ATTR(fan5_min, S_IWUSR | S_IRUGO,
1101 show_fan_min, store_fan_min, 5);
1102 static SENSOR_DEVICE_ATTR(fan6_min, S_IWUSR | S_IRUGO,
1103 show_fan_min, store_fan_min, 6);
1104 static SENSOR_DEVICE_ATTR(fan7_min, S_IWUSR | S_IRUGO,
1105 show_fan_min, store_fan_min, 7);
1106 static SENSOR_DEVICE_ATTR(fan1_div, S_IWUSR | S_IRUGO,
1107 show_fan_div, store_fan_div, 1);
1108 static SENSOR_DEVICE_ATTR(fan2_div, S_IWUSR | S_IRUGO,
1109 show_fan_div, store_fan_div, 2);
1110 static SENSOR_DEVICE_ATTR(fan3_div, S_IWUSR | S_IRUGO,
1111 show_fan_div, store_fan_div, 3);
1112 static SENSOR_DEVICE_ATTR(fan4_div, S_IWUSR | S_IRUGO,
1113 show_fan_div, store_fan_div, 4);
1114 static SENSOR_DEVICE_ATTR(fan5_div, S_IWUSR | S_IRUGO,
1115 show_fan_div, store_fan_div, 5);
1116 static SENSOR_DEVICE_ATTR(fan6_div, S_IWUSR | S_IRUGO,
1117 show_fan_div, store_fan_div, 6);
1118 static SENSOR_DEVICE_ATTR(fan7_div, S_IWUSR | S_IRUGO,
1119 show_fan_div, store_fan_div, 7);
1120
1121 static struct attribute *w83792d_attributes_fan[4][5] = {
1122 {
1123 &sensor_dev_attr_fan4_input.dev_attr.attr,
1124 &sensor_dev_attr_fan4_min.dev_attr.attr,
1125 &sensor_dev_attr_fan4_div.dev_attr.attr,
1126 &sensor_dev_attr_fan4_alarm.dev_attr.attr,
1127 NULL
1128 }, {
1129 &sensor_dev_attr_fan5_input.dev_attr.attr,
1130 &sensor_dev_attr_fan5_min.dev_attr.attr,
1131 &sensor_dev_attr_fan5_div.dev_attr.attr,
1132 &sensor_dev_attr_fan5_alarm.dev_attr.attr,
1133 NULL
1134 }, {
1135 &sensor_dev_attr_fan6_input.dev_attr.attr,
1136 &sensor_dev_attr_fan6_min.dev_attr.attr,
1137 &sensor_dev_attr_fan6_div.dev_attr.attr,
1138 &sensor_dev_attr_fan6_alarm.dev_attr.attr,
1139 NULL
1140 }, {
1141 &sensor_dev_attr_fan7_input.dev_attr.attr,
1142 &sensor_dev_attr_fan7_min.dev_attr.attr,
1143 &sensor_dev_attr_fan7_div.dev_attr.attr,
1144 &sensor_dev_attr_fan7_alarm.dev_attr.attr,
1145 NULL
1146 }
1147 };
1148
1149 static const struct attribute_group w83792d_group_fan[4] = {
1150 { .attrs = w83792d_attributes_fan[0] },
1151 { .attrs = w83792d_attributes_fan[1] },
1152 { .attrs = w83792d_attributes_fan[2] },
1153 { .attrs = w83792d_attributes_fan[3] },
1154 };
1155
1156 static struct attribute *w83792d_attributes[] = {
1157 &sensor_dev_attr_in0_input.dev_attr.attr,
1158 &sensor_dev_attr_in0_max.dev_attr.attr,
1159 &sensor_dev_attr_in0_min.dev_attr.attr,
1160 &sensor_dev_attr_in1_input.dev_attr.attr,
1161 &sensor_dev_attr_in1_max.dev_attr.attr,
1162 &sensor_dev_attr_in1_min.dev_attr.attr,
1163 &sensor_dev_attr_in2_input.dev_attr.attr,
1164 &sensor_dev_attr_in2_max.dev_attr.attr,
1165 &sensor_dev_attr_in2_min.dev_attr.attr,
1166 &sensor_dev_attr_in3_input.dev_attr.attr,
1167 &sensor_dev_attr_in3_max.dev_attr.attr,
1168 &sensor_dev_attr_in3_min.dev_attr.attr,
1169 &sensor_dev_attr_in4_input.dev_attr.attr,
1170 &sensor_dev_attr_in4_max.dev_attr.attr,
1171 &sensor_dev_attr_in4_min.dev_attr.attr,
1172 &sensor_dev_attr_in5_input.dev_attr.attr,
1173 &sensor_dev_attr_in5_max.dev_attr.attr,
1174 &sensor_dev_attr_in5_min.dev_attr.attr,
1175 &sensor_dev_attr_in6_input.dev_attr.attr,
1176 &sensor_dev_attr_in6_max.dev_attr.attr,
1177 &sensor_dev_attr_in6_min.dev_attr.attr,
1178 &sensor_dev_attr_in7_input.dev_attr.attr,
1179 &sensor_dev_attr_in7_max.dev_attr.attr,
1180 &sensor_dev_attr_in7_min.dev_attr.attr,
1181 &sensor_dev_attr_in8_input.dev_attr.attr,
1182 &sensor_dev_attr_in8_max.dev_attr.attr,
1183 &sensor_dev_attr_in8_min.dev_attr.attr,
1184 &sensor_dev_attr_in0_alarm.dev_attr.attr,
1185 &sensor_dev_attr_in1_alarm.dev_attr.attr,
1186 &sensor_dev_attr_in2_alarm.dev_attr.attr,
1187 &sensor_dev_attr_in3_alarm.dev_attr.attr,
1188 &sensor_dev_attr_in4_alarm.dev_attr.attr,
1189 &sensor_dev_attr_in5_alarm.dev_attr.attr,
1190 &sensor_dev_attr_in6_alarm.dev_attr.attr,
1191 &sensor_dev_attr_in7_alarm.dev_attr.attr,
1192 &sensor_dev_attr_in8_alarm.dev_attr.attr,
1193 &sensor_dev_attr_temp1_input.dev_attr.attr,
1194 &sensor_dev_attr_temp1_max.dev_attr.attr,
1195 &sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
1196 &sensor_dev_attr_temp2_input.dev_attr.attr,
1197 &sensor_dev_attr_temp2_max.dev_attr.attr,
1198 &sensor_dev_attr_temp2_max_hyst.dev_attr.attr,
1199 &sensor_dev_attr_temp3_input.dev_attr.attr,
1200 &sensor_dev_attr_temp3_max.dev_attr.attr,
1201 &sensor_dev_attr_temp3_max_hyst.dev_attr.attr,
1202 &sensor_dev_attr_temp1_alarm.dev_attr.attr,
1203 &sensor_dev_attr_temp2_alarm.dev_attr.attr,
1204 &sensor_dev_attr_temp3_alarm.dev_attr.attr,
1205 &sensor_dev_attr_pwm1.dev_attr.attr,
1206 &sensor_dev_attr_pwm1_mode.dev_attr.attr,
1207 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
1208 &sensor_dev_attr_pwm2.dev_attr.attr,
1209 &sensor_dev_attr_pwm2_mode.dev_attr.attr,
1210 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
1211 &sensor_dev_attr_pwm3.dev_attr.attr,
1212 &sensor_dev_attr_pwm3_mode.dev_attr.attr,
1213 &sensor_dev_attr_pwm3_enable.dev_attr.attr,
1214 &dev_attr_alarms.attr,
1215 &dev_attr_chassis.attr,
1216 &dev_attr_chassis_clear.attr,
1217 &sensor_dev_attr_tolerance1.dev_attr.attr,
1218 &sensor_dev_attr_thermal_cruise1.dev_attr.attr,
1219 &sensor_dev_attr_tolerance2.dev_attr.attr,
1220 &sensor_dev_attr_thermal_cruise2.dev_attr.attr,
1221 &sensor_dev_attr_tolerance3.dev_attr.attr,
1222 &sensor_dev_attr_thermal_cruise3.dev_attr.attr,
1223 &sensor_dev_attr_sf2_point1_fan1.dev_attr.attr,
1224 &sensor_dev_attr_sf2_point2_fan1.dev_attr.attr,
1225 &sensor_dev_attr_sf2_point3_fan1.dev_attr.attr,
1226 &sensor_dev_attr_sf2_point4_fan1.dev_attr.attr,
1227 &sensor_dev_attr_sf2_point1_fan2.dev_attr.attr,
1228 &sensor_dev_attr_sf2_point2_fan2.dev_attr.attr,
1229 &sensor_dev_attr_sf2_point3_fan2.dev_attr.attr,
1230 &sensor_dev_attr_sf2_point4_fan2.dev_attr.attr,
1231 &sensor_dev_attr_sf2_point1_fan3.dev_attr.attr,
1232 &sensor_dev_attr_sf2_point2_fan3.dev_attr.attr,
1233 &sensor_dev_attr_sf2_point3_fan3.dev_attr.attr,
1234 &sensor_dev_attr_sf2_point4_fan3.dev_attr.attr,
1235 &sensor_dev_attr_sf2_level1_fan1.dev_attr.attr,
1236 &sensor_dev_attr_sf2_level2_fan1.dev_attr.attr,
1237 &sensor_dev_attr_sf2_level3_fan1.dev_attr.attr,
1238 &sensor_dev_attr_sf2_level1_fan2.dev_attr.attr,
1239 &sensor_dev_attr_sf2_level2_fan2.dev_attr.attr,
1240 &sensor_dev_attr_sf2_level3_fan2.dev_attr.attr,
1241 &sensor_dev_attr_sf2_level1_fan3.dev_attr.attr,
1242 &sensor_dev_attr_sf2_level2_fan3.dev_attr.attr,
1243 &sensor_dev_attr_sf2_level3_fan3.dev_attr.attr,
1244 &sensor_dev_attr_fan1_input.dev_attr.attr,
1245 &sensor_dev_attr_fan1_min.dev_attr.attr,
1246 &sensor_dev_attr_fan1_div.dev_attr.attr,
1247 &sensor_dev_attr_fan1_alarm.dev_attr.attr,
1248 &sensor_dev_attr_fan2_input.dev_attr.attr,
1249 &sensor_dev_attr_fan2_min.dev_attr.attr,
1250 &sensor_dev_attr_fan2_div.dev_attr.attr,
1251 &sensor_dev_attr_fan2_alarm.dev_attr.attr,
1252 &sensor_dev_attr_fan3_input.dev_attr.attr,
1253 &sensor_dev_attr_fan3_min.dev_attr.attr,
1254 &sensor_dev_attr_fan3_div.dev_attr.attr,
1255 &sensor_dev_attr_fan3_alarm.dev_attr.attr,
1256 NULL
1257 };
1258
1259 static const struct attribute_group w83792d_group = {
1260 .attrs = w83792d_attributes,
1261 };
1262
1263 /* Return 0 if detection is successful, -ENODEV otherwise */
1264 static int
1265 w83792d_detect(struct i2c_client *client, struct i2c_board_info *info)
1266 {
1267 struct i2c_adapter *adapter = client->adapter;
1268 int val1, val2;
1269 unsigned short address = client->addr;
1270
1271 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
1272 return -ENODEV;
1273 }
1274
1275 if (w83792d_read_value(client, W83792D_REG_CONFIG) & 0x80)
1276 return -ENODEV;
1277
1278 val1 = w83792d_read_value(client, W83792D_REG_BANK);
1279 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN);
1280 /* Check for Winbond ID if in bank 0 */
1281 if (!(val1 & 0x07)) { /* is Bank0 */
1282 if ((!(val1 & 0x80) && val2 != 0xa3) ||
1283 ( (val1 & 0x80) && val2 != 0x5c))
1284 return -ENODEV;
1285 }
1286 /* If Winbond chip, address of chip and W83792D_REG_I2C_ADDR
1287 should match */
1288 if (w83792d_read_value(client, W83792D_REG_I2C_ADDR) != address)
1289 return -ENODEV;
1290
1291 /* Put it now into bank 0 and Vendor ID High Byte */
1292 w83792d_write_value(client,
1293 W83792D_REG_BANK,
1294 (w83792d_read_value(client,
1295 W83792D_REG_BANK) & 0x78) | 0x80);
1296
1297 /* Determine the chip type. */
1298 val1 = w83792d_read_value(client, W83792D_REG_WCHIPID);
1299 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN);
1300 if (val1 != 0x7a || val2 != 0x5c)
1301 return -ENODEV;
1302
1303 strlcpy(info->type, "w83792d", I2C_NAME_SIZE);
1304
1305 return 0;
1306 }
1307
1308 static int
1309 w83792d_probe(struct i2c_client *client, const struct i2c_device_id *id)
1310 {
1311 struct w83792d_data *data;
1312 struct device *dev = &client->dev;
1313 int i, val1, err;
1314
1315 data = kzalloc(sizeof(struct w83792d_data), GFP_KERNEL);
1316 if (!data) {
1317 err = -ENOMEM;
1318 goto ERROR0;
1319 }
1320
1321 i2c_set_clientdata(client, data);
1322 data->valid = 0;
1323 mutex_init(&data->update_lock);
1324
1325 err = w83792d_detect_subclients(client);
1326 if (err)
1327 goto ERROR1;
1328
1329 /* Initialize the chip */
1330 w83792d_init_client(client);
1331
1332 /* A few vars need to be filled upon startup */
1333 for (i = 0; i < 7; i++) {
1334 data->fan_min[i] = w83792d_read_value(client,
1335 W83792D_REG_FAN_MIN[i]);
1336 }
1337
1338 /* Register sysfs hooks */
1339 if ((err = sysfs_create_group(&dev->kobj, &w83792d_group)))
1340 goto ERROR3;
1341
1342 /* Read GPIO enable register to check if pins for fan 4,5 are used as
1343 GPIO */
1344 val1 = w83792d_read_value(client, W83792D_REG_GPIO_EN);
1345
1346 if (!(val1 & 0x40))
1347 if ((err = sysfs_create_group(&dev->kobj,
1348 &w83792d_group_fan[0])))
1349 goto exit_remove_files;
1350
1351 if (!(val1 & 0x20))
1352 if ((err = sysfs_create_group(&dev->kobj,
1353 &w83792d_group_fan[1])))
1354 goto exit_remove_files;
1355
1356 val1 = w83792d_read_value(client, W83792D_REG_PIN);
1357 if (val1 & 0x40)
1358 if ((err = sysfs_create_group(&dev->kobj,
1359 &w83792d_group_fan[2])))
1360 goto exit_remove_files;
1361
1362 if (val1 & 0x04)
1363 if ((err = sysfs_create_group(&dev->kobj,
1364 &w83792d_group_fan[3])))
1365 goto exit_remove_files;
1366
1367 data->hwmon_dev = hwmon_device_register(dev);
1368 if (IS_ERR(data->hwmon_dev)) {
1369 err = PTR_ERR(data->hwmon_dev);
1370 goto exit_remove_files;
1371 }
1372
1373 return 0;
1374
1375 exit_remove_files:
1376 sysfs_remove_group(&dev->kobj, &w83792d_group);
1377 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++)
1378 sysfs_remove_group(&dev->kobj, &w83792d_group_fan[i]);
1379 ERROR3:
1380 if (data->lm75[0] != NULL)
1381 i2c_unregister_device(data->lm75[0]);
1382 if (data->lm75[1] != NULL)
1383 i2c_unregister_device(data->lm75[1]);
1384 ERROR1:
1385 kfree(data);
1386 ERROR0:
1387 return err;
1388 }
1389
1390 static int
1391 w83792d_remove(struct i2c_client *client)
1392 {
1393 struct w83792d_data *data = i2c_get_clientdata(client);
1394 int i;
1395
1396 hwmon_device_unregister(data->hwmon_dev);
1397 sysfs_remove_group(&client->dev.kobj, &w83792d_group);
1398 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++)
1399 sysfs_remove_group(&client->dev.kobj,
1400 &w83792d_group_fan[i]);
1401
1402 if (data->lm75[0] != NULL)
1403 i2c_unregister_device(data->lm75[0]);
1404 if (data->lm75[1] != NULL)
1405 i2c_unregister_device(data->lm75[1]);
1406
1407 kfree(data);
1408 return 0;
1409 }
1410
1411 static void
1412 w83792d_init_client(struct i2c_client *client)
1413 {
1414 u8 temp2_cfg, temp3_cfg, vid_in_b;
1415
1416 if (init) {
1417 w83792d_write_value(client, W83792D_REG_CONFIG, 0x80);
1418 }
1419 /* Clear the bit6 of W83792D_REG_VID_IN_B(set it into 0):
1420 W83792D_REG_VID_IN_B bit6 = 0: the high/low limit of
1421 vin0/vin1 can be modified by user;
1422 W83792D_REG_VID_IN_B bit6 = 1: the high/low limit of
1423 vin0/vin1 auto-updated, can NOT be modified by user. */
1424 vid_in_b = w83792d_read_value(client, W83792D_REG_VID_IN_B);
1425 w83792d_write_value(client, W83792D_REG_VID_IN_B,
1426 vid_in_b & 0xbf);
1427
1428 temp2_cfg = w83792d_read_value(client, W83792D_REG_TEMP2_CONFIG);
1429 temp3_cfg = w83792d_read_value(client, W83792D_REG_TEMP3_CONFIG);
1430 w83792d_write_value(client, W83792D_REG_TEMP2_CONFIG,
1431 temp2_cfg & 0xe6);
1432 w83792d_write_value(client, W83792D_REG_TEMP3_CONFIG,
1433 temp3_cfg & 0xe6);
1434
1435 /* Start monitoring */
1436 w83792d_write_value(client, W83792D_REG_CONFIG,
1437 (w83792d_read_value(client,
1438 W83792D_REG_CONFIG) & 0xf7)
1439 | 0x01);
1440 }
1441
1442 static struct w83792d_data *w83792d_update_device(struct device *dev)
1443 {
1444 struct i2c_client *client = to_i2c_client(dev);
1445 struct w83792d_data *data = i2c_get_clientdata(client);
1446 int i, j;
1447 u8 reg_array_tmp[4], reg_tmp;
1448
1449 mutex_lock(&data->update_lock);
1450
1451 if (time_after
1452 (jiffies - data->last_updated, (unsigned long) (HZ * 3))
1453 || time_before(jiffies, data->last_updated) || !data->valid) {
1454 dev_dbg(dev, "Starting device update\n");
1455
1456 /* Update the voltages measured value and limits */
1457 for (i = 0; i < 9; i++) {
1458 data->in[i] = w83792d_read_value(client,
1459 W83792D_REG_IN[i]);
1460 data->in_max[i] = w83792d_read_value(client,
1461 W83792D_REG_IN_MAX[i]);
1462 data->in_min[i] = w83792d_read_value(client,
1463 W83792D_REG_IN_MIN[i]);
1464 }
1465 data->low_bits = w83792d_read_value(client,
1466 W83792D_REG_LOW_BITS1) +
1467 (w83792d_read_value(client,
1468 W83792D_REG_LOW_BITS2) << 8);
1469 for (i = 0; i < 7; i++) {
1470 /* Update the Fan measured value and limits */
1471 data->fan[i] = w83792d_read_value(client,
1472 W83792D_REG_FAN[i]);
1473 data->fan_min[i] = w83792d_read_value(client,
1474 W83792D_REG_FAN_MIN[i]);
1475 /* Update the PWM/DC Value and PWM/DC flag */
1476 data->pwm[i] = w83792d_read_value(client,
1477 W83792D_REG_PWM[i]);
1478 }
1479
1480 reg_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG);
1481 data->pwmenable[0] = reg_tmp & 0x03;
1482 data->pwmenable[1] = (reg_tmp>>2) & 0x03;
1483 data->pwmenable[2] = (reg_tmp>>4) & 0x03;
1484
1485 for (i = 0; i < 3; i++) {
1486 data->temp1[i] = w83792d_read_value(client,
1487 W83792D_REG_TEMP1[i]);
1488 }
1489 for (i = 0; i < 2; i++) {
1490 for (j = 0; j < 6; j++) {
1491 data->temp_add[i][j] = w83792d_read_value(
1492 client,W83792D_REG_TEMP_ADD[i][j]);
1493 }
1494 }
1495
1496 /* Update the Fan Divisor */
1497 for (i = 0; i < 4; i++) {
1498 reg_array_tmp[i] = w83792d_read_value(client,
1499 W83792D_REG_FAN_DIV[i]);
1500 }
1501 data->fan_div[0] = reg_array_tmp[0] & 0x07;
1502 data->fan_div[1] = (reg_array_tmp[0] >> 4) & 0x07;
1503 data->fan_div[2] = reg_array_tmp[1] & 0x07;
1504 data->fan_div[3] = (reg_array_tmp[1] >> 4) & 0x07;
1505 data->fan_div[4] = reg_array_tmp[2] & 0x07;
1506 data->fan_div[5] = (reg_array_tmp[2] >> 4) & 0x07;
1507 data->fan_div[6] = reg_array_tmp[3] & 0x07;
1508
1509 /* Update the realtime status */
1510 data->alarms = w83792d_read_value(client, W83792D_REG_ALARM1) +
1511 (w83792d_read_value(client, W83792D_REG_ALARM2) << 8) +
1512 (w83792d_read_value(client, W83792D_REG_ALARM3) << 16);
1513
1514 /* Update CaseOpen status and it's CLR_CHS. */
1515 data->chassis = (w83792d_read_value(client,
1516 W83792D_REG_CHASSIS) >> 5) & 0x01;
1517 data->chassis_clear = (w83792d_read_value(client,
1518 W83792D_REG_CHASSIS_CLR) >> 7) & 0x01;
1519
1520 /* Update Thermal Cruise/Smart Fan I target value */
1521 for (i = 0; i < 3; i++) {
1522 data->thermal_cruise[i] =
1523 w83792d_read_value(client,
1524 W83792D_REG_THERMAL[i]) & 0x7f;
1525 }
1526
1527 /* Update Smart Fan I/II tolerance */
1528 reg_tmp = w83792d_read_value(client, W83792D_REG_TOLERANCE[0]);
1529 data->tolerance[0] = reg_tmp & 0x0f;
1530 data->tolerance[1] = (reg_tmp >> 4) & 0x0f;
1531 data->tolerance[2] = w83792d_read_value(client,
1532 W83792D_REG_TOLERANCE[2]) & 0x0f;
1533
1534 /* Update Smart Fan II temperature points */
1535 for (i = 0; i < 3; i++) {
1536 for (j = 0; j < 4; j++) {
1537 data->sf2_points[i][j] = w83792d_read_value(
1538 client,W83792D_REG_POINTS[i][j]) & 0x7f;
1539 }
1540 }
1541
1542 /* Update Smart Fan II duty cycle levels */
1543 for (i = 0; i < 3; i++) {
1544 reg_tmp = w83792d_read_value(client,
1545 W83792D_REG_LEVELS[i][0]);
1546 data->sf2_levels[i][0] = reg_tmp & 0x0f;
1547 data->sf2_levels[i][1] = (reg_tmp >> 4) & 0x0f;
1548 reg_tmp = w83792d_read_value(client,
1549 W83792D_REG_LEVELS[i][2]);
1550 data->sf2_levels[i][2] = (reg_tmp >> 4) & 0x0f;
1551 data->sf2_levels[i][3] = reg_tmp & 0x0f;
1552 }
1553
1554 data->last_updated = jiffies;
1555 data->valid = 1;
1556 }
1557
1558 mutex_unlock(&data->update_lock);
1559
1560 #ifdef DEBUG
1561 w83792d_print_debug(data, dev);
1562 #endif
1563
1564 return data;
1565 }
1566
1567 #ifdef DEBUG
1568 static void w83792d_print_debug(struct w83792d_data *data, struct device *dev)
1569 {
1570 int i=0, j=0;
1571 dev_dbg(dev, "==========The following is the debug message...========\n");
1572 dev_dbg(dev, "9 set of Voltages: =====>\n");
1573 for (i=0; i<9; i++) {
1574 dev_dbg(dev, "vin[%d] is: 0x%x\n", i, data->in[i]);
1575 dev_dbg(dev, "vin[%d] max is: 0x%x\n", i, data->in_max[i]);
1576 dev_dbg(dev, "vin[%d] min is: 0x%x\n", i, data->in_min[i]);
1577 }
1578 dev_dbg(dev, "Low Bit1 is: 0x%x\n", data->low_bits & 0xff);
1579 dev_dbg(dev, "Low Bit2 is: 0x%x\n", data->low_bits >> 8);
1580 dev_dbg(dev, "7 set of Fan Counts and Duty Cycles: =====>\n");
1581 for (i=0; i<7; i++) {
1582 dev_dbg(dev, "fan[%d] is: 0x%x\n", i, data->fan[i]);
1583 dev_dbg(dev, "fan[%d] min is: 0x%x\n", i, data->fan_min[i]);
1584 dev_dbg(dev, "pwm[%d] is: 0x%x\n", i, data->pwm[i]);
1585 }
1586 dev_dbg(dev, "3 set of Temperatures: =====>\n");
1587 for (i=0; i<3; i++) {
1588 dev_dbg(dev, "temp1[%d] is: 0x%x\n", i, data->temp1[i]);
1589 }
1590
1591 for (i=0; i<2; i++) {
1592 for (j=0; j<6; j++) {
1593 dev_dbg(dev, "temp_add[%d][%d] is: 0x%x\n", i, j,
1594 data->temp_add[i][j]);
1595 }
1596 }
1597
1598 for (i=0; i<7; i++) {
1599 dev_dbg(dev, "fan_div[%d] is: 0x%x\n", i, data->fan_div[i]);
1600 }
1601 dev_dbg(dev, "==========End of the debug message...==================\n");
1602 dev_dbg(dev, "\n");
1603 }
1604 #endif
1605
1606 static int __init
1607 sensors_w83792d_init(void)
1608 {
1609 return i2c_add_driver(&w83792d_driver);
1610 }
1611
1612 static void __exit
1613 sensors_w83792d_exit(void)
1614 {
1615 i2c_del_driver(&w83792d_driver);
1616 }
1617
1618 MODULE_AUTHOR("Chunhao Huang @ Winbond <DZShen@Winbond.com.tw>");
1619 MODULE_DESCRIPTION("W83792AD/D driver for linux-2.6");
1620 MODULE_LICENSE("GPL");
1621
1622 module_init(sensors_w83792d_init);
1623 module_exit(sensors_w83792d_exit);
1624
linux-next