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System call wrappers part 05
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / hwmon / w83792d.c
blobcf94c5b0c879aa48881c3aba7404e80b2ad74199
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 I2C_CLIENT_INSMOD_1(w83792d);
54 I2C_CLIENT_MODULE_PARM(force_subclients, "List of subclient addresses: "
55 "{bus, clientaddr, subclientaddr1, subclientaddr2}");
56
57 static int init;
58 module_param(init, bool, 0);
59 MODULE_PARM_DESC(init, "Set to one to force chip initialization");
60
61 /* The W83792D registers */
62 static const u8 W83792D_REG_IN[9] = {
63 0x20, /* Vcore A in DataSheet */
64 0x21, /* Vcore B in DataSheet */
65 0x22, /* VIN0 in DataSheet */
66 0x23, /* VIN1 in DataSheet */
67 0x24, /* VIN2 in DataSheet */
68 0x25, /* VIN3 in DataSheet */
69 0x26, /* 5VCC in DataSheet */
70 0xB0, /* 5VSB in DataSheet */
71 0xB1 /* VBAT in DataSheet */
72 };
73 #define W83792D_REG_LOW_BITS1 0x3E /* Low Bits I in DataSheet */
74 #define W83792D_REG_LOW_BITS2 0x3F /* Low Bits II in DataSheet */
75 static const u8 W83792D_REG_IN_MAX[9] = {
76 0x2B, /* Vcore A High Limit in DataSheet */
77 0x2D, /* Vcore B High Limit in DataSheet */
78 0x2F, /* VIN0 High Limit in DataSheet */
79 0x31, /* VIN1 High Limit in DataSheet */
80 0x33, /* VIN2 High Limit in DataSheet */
81 0x35, /* VIN3 High Limit in DataSheet */
82 0x37, /* 5VCC High Limit in DataSheet */
83 0xB4, /* 5VSB High Limit in DataSheet */
84 0xB6 /* VBAT High Limit in DataSheet */
85 };
86 static const u8 W83792D_REG_IN_MIN[9] = {
87 0x2C, /* Vcore A Low Limit in DataSheet */
88 0x2E, /* Vcore B Low Limit in DataSheet */
89 0x30, /* VIN0 Low Limit in DataSheet */
90 0x32, /* VIN1 Low Limit in DataSheet */
91 0x34, /* VIN2 Low Limit in DataSheet */
92 0x36, /* VIN3 Low Limit in DataSheet */
93 0x38, /* 5VCC Low Limit in DataSheet */
94 0xB5, /* 5VSB Low Limit in DataSheet */
95 0xB7 /* VBAT Low Limit in DataSheet */
96 };
97 static const u8 W83792D_REG_FAN[7] = {
98 0x28, /* FAN 1 Count in DataSheet */
99 0x29, /* FAN 2 Count in DataSheet */
100 0x2A, /* FAN 3 Count in DataSheet */
101 0xB8, /* FAN 4 Count in DataSheet */
102 0xB9, /* FAN 5 Count in DataSheet */
103 0xBA, /* FAN 6 Count in DataSheet */
104 0xBE /* FAN 7 Count in DataSheet */
105 };
106 static const u8 W83792D_REG_FAN_MIN[7] = {
107 0x3B, /* FAN 1 Count Low Limit in DataSheet */
108 0x3C, /* FAN 2 Count Low Limit in DataSheet */
109 0x3D, /* FAN 3 Count Low Limit in DataSheet */
110 0xBB, /* FAN 4 Count Low Limit in DataSheet */
111 0xBC, /* FAN 5 Count Low Limit in DataSheet */
112 0xBD, /* FAN 6 Count Low Limit in DataSheet */
113 0xBF /* FAN 7 Count Low Limit in DataSheet */
114 };
115 #define W83792D_REG_FAN_CFG 0x84 /* FAN Configuration in DataSheet */
116 static const u8 W83792D_REG_FAN_DIV[4] = {
117 0x47, /* contains FAN2 and FAN1 Divisor */
118 0x5B, /* contains FAN4 and FAN3 Divisor */
119 0x5C, /* contains FAN6 and FAN5 Divisor */
120 0x9E /* contains FAN7 Divisor. */
121 };
122 static const u8 W83792D_REG_PWM[7] = {
123 0x81, /* FAN 1 Duty Cycle, be used to control */
124 0x83, /* FAN 2 Duty Cycle, be used to control */
125 0x94, /* FAN 3 Duty Cycle, be used to control */
126 0xA3, /* FAN 4 Duty Cycle, be used to control */
127 0xA4, /* FAN 5 Duty Cycle, be used to control */
128 0xA5, /* FAN 6 Duty Cycle, be used to control */
129 0xA6 /* FAN 7 Duty Cycle, be used to control */
130 };
131 #define W83792D_REG_BANK 0x4E
132 #define W83792D_REG_TEMP2_CONFIG 0xC2
133 #define W83792D_REG_TEMP3_CONFIG 0xCA
134
135 static const u8 W83792D_REG_TEMP1[3] = {
136 0x27, /* TEMP 1 in DataSheet */
137 0x39, /* TEMP 1 Over in DataSheet */
138 0x3A, /* TEMP 1 Hyst in DataSheet */
139 };
140
141 static const u8 W83792D_REG_TEMP_ADD[2][6] = {
142 { 0xC0, /* TEMP 2 in DataSheet */
143 0xC1, /* TEMP 2(0.5 deg) in DataSheet */
144 0xC5, /* TEMP 2 Over High part in DataSheet */
145 0xC6, /* TEMP 2 Over Low part in DataSheet */
146 0xC3, /* TEMP 2 Thyst High part in DataSheet */
147 0xC4 }, /* TEMP 2 Thyst Low part in DataSheet */
148 { 0xC8, /* TEMP 3 in DataSheet */
149 0xC9, /* TEMP 3(0.5 deg) in DataSheet */
150 0xCD, /* TEMP 3 Over High part in DataSheet */
151 0xCE, /* TEMP 3 Over Low part in DataSheet */
152 0xCB, /* TEMP 3 Thyst High part in DataSheet */
153 0xCC } /* TEMP 3 Thyst Low part in DataSheet */
154 };
155
156 static const u8 W83792D_REG_THERMAL[3] = {
157 0x85, /* SmartFanI: Fan1 target value */
158 0x86, /* SmartFanI: Fan2 target value */
159 0x96 /* SmartFanI: Fan3 target value */
160 };
161
162 static const u8 W83792D_REG_TOLERANCE[3] = {
163 0x87, /* (bit3-0)SmartFan Fan1 tolerance */
164 0x87, /* (bit7-4)SmartFan Fan2 tolerance */
165 0x97 /* (bit3-0)SmartFan Fan3 tolerance */
166 };
167
168 static const u8 W83792D_REG_POINTS[3][4] = {
169 { 0x85, /* SmartFanII: Fan1 temp point 1 */
170 0xE3, /* SmartFanII: Fan1 temp point 2 */
171 0xE4, /* SmartFanII: Fan1 temp point 3 */
172 0xE5 }, /* SmartFanII: Fan1 temp point 4 */
173 { 0x86, /* SmartFanII: Fan2 temp point 1 */
174 0xE6, /* SmartFanII: Fan2 temp point 2 */
175 0xE7, /* SmartFanII: Fan2 temp point 3 */
176 0xE8 }, /* SmartFanII: Fan2 temp point 4 */
177 { 0x96, /* SmartFanII: Fan3 temp point 1 */
178 0xE9, /* SmartFanII: Fan3 temp point 2 */
179 0xEA, /* SmartFanII: Fan3 temp point 3 */
180 0xEB } /* SmartFanII: Fan3 temp point 4 */
181 };
182
183 static const u8 W83792D_REG_LEVELS[3][4] = {
184 { 0x88, /* (bit3-0) SmartFanII: Fan1 Non-Stop */
185 0x88, /* (bit7-4) SmartFanII: Fan1 Level 1 */
186 0xE0, /* (bit7-4) SmartFanII: Fan1 Level 2 */
187 0xE0 }, /* (bit3-0) SmartFanII: Fan1 Level 3 */
188 { 0x89, /* (bit3-0) SmartFanII: Fan2 Non-Stop */
189 0x89, /* (bit7-4) SmartFanII: Fan2 Level 1 */
190 0xE1, /* (bit7-4) SmartFanII: Fan2 Level 2 */
191 0xE1 }, /* (bit3-0) SmartFanII: Fan2 Level 3 */
192 { 0x98, /* (bit3-0) SmartFanII: Fan3 Non-Stop */
193 0x98, /* (bit7-4) SmartFanII: Fan3 Level 1 */
194 0xE2, /* (bit7-4) SmartFanII: Fan3 Level 2 */
195 0xE2 } /* (bit3-0) SmartFanII: Fan3 Level 3 */
196 };
197
198 #define W83792D_REG_GPIO_EN 0x1A
199 #define W83792D_REG_CONFIG 0x40
200 #define W83792D_REG_VID_FANDIV 0x47
201 #define W83792D_REG_CHIPID 0x49
202 #define W83792D_REG_WCHIPID 0x58
203 #define W83792D_REG_CHIPMAN 0x4F
204 #define W83792D_REG_PIN 0x4B
205 #define W83792D_REG_I2C_SUBADDR 0x4A
206
207 #define W83792D_REG_ALARM1 0xA9 /* realtime status register1 */
208 #define W83792D_REG_ALARM2 0xAA /* realtime status register2 */
209 #define W83792D_REG_ALARM3 0xAB /* realtime status register3 */
210 #define W83792D_REG_CHASSIS 0x42 /* Bit 5: Case Open status bit */
211 #define W83792D_REG_CHASSIS_CLR 0x44 /* Bit 7: Case Open CLR_CHS/Reset bit */
212
213 /* control in0/in1 's limit modifiability */
214 #define W83792D_REG_VID_IN_B 0x17
215
216 #define W83792D_REG_VBAT 0x5D
217 #define W83792D_REG_I2C_ADDR 0x48
218
219 /* Conversions. Rounding and limit checking is only done on the TO_REG
220 variants. Note that you should be a bit careful with which arguments
221 these macros are called: arguments may be evaluated more than once.
222 Fixing this is just not worth it. */
223 #define IN_FROM_REG(nr,val) (((nr)<=1)?(val*2): \
224 ((((nr)==6)||((nr)==7))?(val*6):(val*4)))
225 #define IN_TO_REG(nr,val) (((nr)<=1)?(val/2): \
226 ((((nr)==6)||((nr)==7))?(val/6):(val/4)))
227
228 static inline u8
229 FAN_TO_REG(long rpm, int div)
230 {
231 if (rpm == 0)
232 return 255;
233 rpm = SENSORS_LIMIT(rpm, 1, 1000000);
234 return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 254);
235 }
236
237 #define FAN_FROM_REG(val,div) ((val) == 0 ? -1 : \
238 ((val) == 255 ? 0 : \
239 1350000 / ((val) * (div))))
240
241 /* for temp1 */
242 #define TEMP1_TO_REG(val) (SENSORS_LIMIT(((val) < 0 ? (val)+0x100*1000 \
243 : (val)) / 1000, 0, 0xff))
244 #define TEMP1_FROM_REG(val) (((val) & 0x80 ? (val)-0x100 : (val)) * 1000)
245 /* for temp2 and temp3, because they need addtional resolution */
246 #define TEMP_ADD_FROM_REG(val1, val2) \
247 ((((val1) & 0x80 ? (val1)-0x100 \
248 : (val1)) * 1000) + ((val2 & 0x80) ? 500 : 0))
249 #define TEMP_ADD_TO_REG_HIGH(val) \
250 (SENSORS_LIMIT(((val) < 0 ? (val)+0x100*1000 \
251 : (val)) / 1000, 0, 0xff))
252 #define TEMP_ADD_TO_REG_LOW(val) ((val%1000) ? 0x80 : 0x00)
253
254 #define DIV_FROM_REG(val) (1 << (val))
255
256 static inline u8
257 DIV_TO_REG(long val)
258 {
259 int i;
260 val = SENSORS_LIMIT(val, 1, 128) >> 1;
261 for (i = 0; i < 7; i++) {
262 if (val == 0)
263 break;
264 val >>= 1;
265 }
266 return ((u8) i);
267 }
268
269 struct w83792d_data {
270 struct device *hwmon_dev;
271
272 struct mutex update_lock;
273 char valid; /* !=0 if following fields are valid */
274 unsigned long last_updated; /* In jiffies */
275
276 /* array of 2 pointers to subclients */
277 struct i2c_client *lm75[2];
278
279 u8 in[9]; /* Register value */
280 u8 in_max[9]; /* Register value */
281 u8 in_min[9]; /* Register value */
282 u16 low_bits; /* Additional resolution to voltage in6-0 */
283 u8 fan[7]; /* Register value */
284 u8 fan_min[7]; /* Register value */
285 u8 temp1[3]; /* current, over, thyst */
286 u8 temp_add[2][6]; /* Register value */
287 u8 fan_div[7]; /* Register encoding, shifted right */
288 u8 pwm[7]; /* We only consider the first 3 set of pwm,
289 although 792 chip has 7 set of pwm. */
290 u8 pwmenable[3];
291 u32 alarms; /* realtime status register encoding,combined */
292 u8 chassis; /* Chassis status */
293 u8 chassis_clear; /* CLR_CHS, clear chassis intrusion detection */
294 u8 thermal_cruise[3]; /* Smart FanI: Fan1,2,3 target value */
295 u8 tolerance[3]; /* Fan1,2,3 tolerance(Smart Fan I/II) */
296 u8 sf2_points[3][4]; /* Smart FanII: Fan1,2,3 temperature points */
297 u8 sf2_levels[3][4]; /* Smart FanII: Fan1,2,3 duty cycle levels */
298 };
299
300 static int w83792d_probe(struct i2c_client *client,
301 const struct i2c_device_id *id);
302 static int w83792d_detect(struct i2c_client *client, int kind,
303 struct i2c_board_info *info);
304 static int w83792d_remove(struct i2c_client *client);
305 static struct w83792d_data *w83792d_update_device(struct device *dev);
306
307 #ifdef DEBUG
308 static void w83792d_print_debug(struct w83792d_data *data, struct device *dev);
309 #endif
310
311 static void w83792d_init_client(struct i2c_client *client);
312
313 static const struct i2c_device_id w83792d_id[] = {
314 { "w83792d", w83792d },
315 { }
316 };
317 MODULE_DEVICE_TABLE(i2c, w83792d_id);
318
319 static struct i2c_driver w83792d_driver = {
320 .class = I2C_CLASS_HWMON,
321 .driver = {
322 .name = "w83792d",
323 },
324 .probe = w83792d_probe,
325 .remove = w83792d_remove,
326 .id_table = w83792d_id,
327 .detect = w83792d_detect,
328 .address_data = &addr_data,
329 };
330
331 static inline long in_count_from_reg(int nr, struct w83792d_data *data)
332 {
333 /* in7 and in8 do not have low bits, but the formula still works */
334 return ((data->in[nr] << 2) | ((data->low_bits >> (2 * nr)) & 0x03));
335 }
336
337 /* The SMBus locks itself. The Winbond W83792D chip has a bank register,
338 but the driver only accesses registers in bank 0, so we don't have
339 to switch banks and lock access between switches. */
340 static inline int w83792d_read_value(struct i2c_client *client, u8 reg)
341 {
342 return i2c_smbus_read_byte_data(client, reg);
343 }
344
345 static inline int
346 w83792d_write_value(struct i2c_client *client, u8 reg, u8 value)
347 {
348 return i2c_smbus_write_byte_data(client, reg, value);
349 }
350
351 /* following are the sysfs callback functions */
352 static ssize_t show_in(struct device *dev, struct device_attribute *attr,
353 char *buf)
354 {
355 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
356 int nr = sensor_attr->index;
357 struct w83792d_data *data = w83792d_update_device(dev);
358 return sprintf(buf,"%ld\n", IN_FROM_REG(nr,(in_count_from_reg(nr, data))));
359 }
360
361 #define show_in_reg(reg) \
362 static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
363 char *buf) \
364 { \
365 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
366 int nr = sensor_attr->index; \
367 struct w83792d_data *data = w83792d_update_device(dev); \
368 return sprintf(buf,"%ld\n", (long)(IN_FROM_REG(nr, (data->reg[nr])*4))); \
369 }
370
371 show_in_reg(in_min);
372 show_in_reg(in_max);
373
374 #define store_in_reg(REG, reg) \
375 static ssize_t store_in_##reg (struct device *dev, \
376 struct device_attribute *attr, \
377 const char *buf, size_t count) \
378 { \
379 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
380 int nr = sensor_attr->index; \
381 struct i2c_client *client = to_i2c_client(dev); \
382 struct w83792d_data *data = i2c_get_clientdata(client); \
383 u32 val; \
384 \
385 val = simple_strtoul(buf, NULL, 10); \
386 mutex_lock(&data->update_lock); \
387 data->in_##reg[nr] = SENSORS_LIMIT(IN_TO_REG(nr, val)/4, 0, 255); \
388 w83792d_write_value(client, W83792D_REG_IN_##REG[nr], data->in_##reg[nr]); \
389 mutex_unlock(&data->update_lock); \
390 \
391 return count; \
392 }
393 store_in_reg(MIN, min);
394 store_in_reg(MAX, max);
395
396 #define show_fan_reg(reg) \
397 static ssize_t show_##reg (struct device *dev, struct device_attribute *attr, \
398 char *buf) \
399 { \
400 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
401 int nr = sensor_attr->index - 1; \
402 struct w83792d_data *data = w83792d_update_device(dev); \
403 return sprintf(buf,"%d\n", \
404 FAN_FROM_REG(data->reg[nr], DIV_FROM_REG(data->fan_div[nr]))); \
405 }
406
407 show_fan_reg(fan);
408 show_fan_reg(fan_min);
409
410 static ssize_t
411 store_fan_min(struct device *dev, struct device_attribute *attr,
412 const char *buf, size_t count)
413 {
414 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
415 int nr = sensor_attr->index - 1;
416 struct i2c_client *client = to_i2c_client(dev);
417 struct w83792d_data *data = i2c_get_clientdata(client);
418 u32 val;
419
420 val = simple_strtoul(buf, NULL, 10);
421 mutex_lock(&data->update_lock);
422 data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
423 w83792d_write_value(client, W83792D_REG_FAN_MIN[nr],
424 data->fan_min[nr]);
425 mutex_unlock(&data->update_lock);
426
427 return count;
428 }
429
430 static ssize_t
431 show_fan_div(struct device *dev, struct device_attribute *attr,
432 char *buf)
433 {
434 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
435 int nr = sensor_attr->index;
436 struct w83792d_data *data = w83792d_update_device(dev);
437 return sprintf(buf, "%u\n", DIV_FROM_REG(data->fan_div[nr - 1]));
438 }
439
440 /* Note: we save and restore the fan minimum here, because its value is
441 determined in part by the fan divisor. This follows the principle of
442 least surprise; the user doesn't expect the fan minimum to change just
443 because the divisor changed. */
444 static ssize_t
445 store_fan_div(struct device *dev, struct device_attribute *attr,
446 const char *buf, size_t count)
447 {
448 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
449 int nr = sensor_attr->index - 1;
450 struct i2c_client *client = to_i2c_client(dev);
451 struct w83792d_data *data = i2c_get_clientdata(client);
452 unsigned long min;
453 /*u8 reg;*/
454 u8 fan_div_reg = 0;
455 u8 tmp_fan_div;
456
457 /* Save fan_min */
458 mutex_lock(&data->update_lock);
459 min = FAN_FROM_REG(data->fan_min[nr],
460 DIV_FROM_REG(data->fan_div[nr]));
461
462 data->fan_div[nr] = DIV_TO_REG(simple_strtoul(buf, NULL, 10));
463
464 fan_div_reg = w83792d_read_value(client, W83792D_REG_FAN_DIV[nr >> 1]);
465 fan_div_reg &= (nr & 0x01) ? 0x8f : 0xf8;
466 tmp_fan_div = (nr & 0x01) ? (((data->fan_div[nr]) << 4) & 0x70)
467 : ((data->fan_div[nr]) & 0x07);
468 w83792d_write_value(client, W83792D_REG_FAN_DIV[nr >> 1],
469 fan_div_reg | tmp_fan_div);
470
471 /* Restore fan_min */
472 data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
473 w83792d_write_value(client, W83792D_REG_FAN_MIN[nr], data->fan_min[nr]);
474 mutex_unlock(&data->update_lock);
475
476 return count;
477 }
478
479 /* read/write the temperature1, includes measured value and limits */
480
481 static ssize_t show_temp1(struct device *dev, struct device_attribute *attr,
482 char *buf)
483 {
484 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
485 int nr = sensor_attr->index;
486 struct w83792d_data *data = w83792d_update_device(dev);
487 return sprintf(buf, "%d\n", TEMP1_FROM_REG(data->temp1[nr]));
488 }
489
490 static ssize_t store_temp1(struct device *dev, struct device_attribute *attr,
491 const char *buf, size_t count)
492 {
493 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
494 int nr = sensor_attr->index;
495 struct i2c_client *client = to_i2c_client(dev);
496 struct w83792d_data *data = i2c_get_clientdata(client);
497 s32 val;
498
499 val = simple_strtol(buf, NULL, 10);
500 mutex_lock(&data->update_lock);
501 data->temp1[nr] = TEMP1_TO_REG(val);
502 w83792d_write_value(client, W83792D_REG_TEMP1[nr],
503 data->temp1[nr]);
504 mutex_unlock(&data->update_lock);
505
506 return count;
507 }
508
509 /* read/write the temperature2-3, includes measured value and limits */
510
511 static ssize_t show_temp23(struct device *dev, struct device_attribute *attr,
512 char *buf)
513 {
514 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
515 int nr = sensor_attr->nr;
516 int index = sensor_attr->index;
517 struct w83792d_data *data = w83792d_update_device(dev);
518 return sprintf(buf,"%ld\n",
519 (long)TEMP_ADD_FROM_REG(data->temp_add[nr][index],
520 data->temp_add[nr][index+1]));
521 }
522
523 static ssize_t store_temp23(struct device *dev, struct device_attribute *attr,
524 const char *buf, size_t count)
525 {
526 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
527 int nr = sensor_attr->nr;
528 int index = sensor_attr->index;
529 struct i2c_client *client = to_i2c_client(dev);
530 struct w83792d_data *data = i2c_get_clientdata(client);
531 s32 val;
532
533 val = simple_strtol(buf, NULL, 10);
534 mutex_lock(&data->update_lock);
535 data->temp_add[nr][index] = TEMP_ADD_TO_REG_HIGH(val);
536 data->temp_add[nr][index+1] = TEMP_ADD_TO_REG_LOW(val);
537 w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index],
538 data->temp_add[nr][index]);
539 w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index+1],
540 data->temp_add[nr][index+1]);
541 mutex_unlock(&data->update_lock);
542
543 return count;
544 }
545
546 /* get reatime status of all sensors items: voltage, temp, fan */
547 static ssize_t
548 show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf)
549 {
550 struct w83792d_data *data = w83792d_update_device(dev);
551 return sprintf(buf, "%d\n", data->alarms);
552 }
553
554 static ssize_t show_alarm(struct device *dev,
555 struct device_attribute *attr, char *buf)
556 {
557 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
558 int nr = sensor_attr->index;
559 struct w83792d_data *data = w83792d_update_device(dev);
560 return sprintf(buf, "%d\n", (data->alarms >> nr) & 1);
561 }
562
563 static ssize_t
564 show_pwm(struct device *dev, struct device_attribute *attr,
565 char *buf)
566 {
567 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
568 int nr = sensor_attr->index;
569 struct w83792d_data *data = w83792d_update_device(dev);
570 return sprintf(buf, "%d\n", (data->pwm[nr] & 0x0f) << 4);
571 }
572
573 static ssize_t
574 show_pwmenable(struct device *dev, struct device_attribute *attr,
575 char *buf)
576 {
577 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
578 int nr = sensor_attr->index - 1;
579 struct w83792d_data *data = w83792d_update_device(dev);
580 long pwm_enable_tmp = 1;
581
582 switch (data->pwmenable[nr]) {
583 case 0:
584 pwm_enable_tmp = 1; /* manual mode */
585 break;
586 case 1:
587 pwm_enable_tmp = 3; /*thermal cruise/Smart Fan I */
588 break;
589 case 2:
590 pwm_enable_tmp = 2; /* Smart Fan II */
591 break;
592 }
593
594 return sprintf(buf, "%ld\n", pwm_enable_tmp);
595 }
596
597 static ssize_t
598 store_pwm(struct device *dev, struct device_attribute *attr,
599 const char *buf, size_t count)
600 {
601 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
602 int nr = sensor_attr->index;
603 struct i2c_client *client = to_i2c_client(dev);
604 struct w83792d_data *data = i2c_get_clientdata(client);
605 u8 val = SENSORS_LIMIT(simple_strtoul(buf, NULL, 10), 0, 255) >> 4;
606
607 mutex_lock(&data->update_lock);
608 val |= w83792d_read_value(client, W83792D_REG_PWM[nr]) & 0xf0;
609 data->pwm[nr] = val;
610 w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]);
611 mutex_unlock(&data->update_lock);
612
613 return count;
614 }
615
616 static ssize_t
617 store_pwmenable(struct device *dev, struct device_attribute *attr,
618 const char *buf, size_t count)
619 {
620 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
621 int nr = sensor_attr->index - 1;
622 struct i2c_client *client = to_i2c_client(dev);
623 struct w83792d_data *data = i2c_get_clientdata(client);
624 u32 val;
625 u8 fan_cfg_tmp, cfg1_tmp, cfg2_tmp, cfg3_tmp, cfg4_tmp;
626
627 val = simple_strtoul(buf, NULL, 10);
628 if (val < 1 || val > 3)
629 return -EINVAL;
630
631 mutex_lock(&data->update_lock);
632 switch (val) {
633 case 1:
634 data->pwmenable[nr] = 0; /* manual mode */
635 break;
636 case 2:
637 data->pwmenable[nr] = 2; /* Smart Fan II */
638 break;
639 case 3:
640 data->pwmenable[nr] = 1; /* thermal cruise/Smart Fan I */
641 break;
642 }
643 cfg1_tmp = data->pwmenable[0];
644 cfg2_tmp = (data->pwmenable[1]) << 2;
645 cfg3_tmp = (data->pwmenable[2]) << 4;
646 cfg4_tmp = w83792d_read_value(client,W83792D_REG_FAN_CFG) & 0xc0;
647 fan_cfg_tmp = ((cfg4_tmp | cfg3_tmp) | cfg2_tmp) | cfg1_tmp;
648 w83792d_write_value(client, W83792D_REG_FAN_CFG, fan_cfg_tmp);
649 mutex_unlock(&data->update_lock);
650
651 return count;
652 }
653
654 static ssize_t
655 show_pwm_mode(struct device *dev, struct device_attribute *attr,
656 char *buf)
657 {
658 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
659 int nr = sensor_attr->index;
660 struct w83792d_data *data = w83792d_update_device(dev);
661 return sprintf(buf, "%d\n", data->pwm[nr] >> 7);
662 }
663
664 static ssize_t
665 store_pwm_mode(struct device *dev, struct device_attribute *attr,
666 const char *buf, size_t count)
667 {
668 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
669 int nr = sensor_attr->index;
670 struct i2c_client *client = to_i2c_client(dev);
671 struct w83792d_data *data = i2c_get_clientdata(client);
672 u32 val;
673
674 val = simple_strtoul(buf, NULL, 10);
675 if (val != 0 && val != 1)
676 return -EINVAL;
677
678 mutex_lock(&data->update_lock);
679 data->pwm[nr] = w83792d_read_value(client, W83792D_REG_PWM[nr]);
680 if (val) { /* PWM mode */
681 data->pwm[nr] |= 0x80;
682 } else { /* DC mode */
683 data->pwm[nr] &= 0x7f;
684 }
685 w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]);
686 mutex_unlock(&data->update_lock);
687
688 return count;
689 }
690
691 static ssize_t
692 show_regs_chassis(struct device *dev, struct device_attribute *attr,
693 char *buf)
694 {
695 struct w83792d_data *data = w83792d_update_device(dev);
696 return sprintf(buf, "%d\n", data->chassis);
697 }
698
699 static ssize_t
700 show_chassis_clear(struct device *dev, struct device_attribute *attr, char *buf)
701 {
702 struct w83792d_data *data = w83792d_update_device(dev);
703 return sprintf(buf, "%d\n", data->chassis_clear);
704 }
705
706 static ssize_t
707 store_chassis_clear(struct device *dev, struct device_attribute *attr,
708 const char *buf, size_t count)
709 {
710 struct i2c_client *client = to_i2c_client(dev);
711 struct w83792d_data *data = i2c_get_clientdata(client);
712 u32 val;
713 u8 temp1 = 0, temp2 = 0;
714
715 val = simple_strtoul(buf, NULL, 10);
716 mutex_lock(&data->update_lock);
717 data->chassis_clear = SENSORS_LIMIT(val, 0 ,1);
718 temp1 = ((data->chassis_clear) << 7) & 0x80;
719 temp2 = w83792d_read_value(client,
720 W83792D_REG_CHASSIS_CLR) & 0x7f;
721 w83792d_write_value(client, W83792D_REG_CHASSIS_CLR, temp1 | temp2);
722 mutex_unlock(&data->update_lock);
723
724 return count;
725 }
726
727 /* For Smart Fan I / Thermal Cruise */
728 static ssize_t
729 show_thermal_cruise(struct device *dev, struct device_attribute *attr,
730 char *buf)
731 {
732 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
733 int nr = sensor_attr->index;
734 struct w83792d_data *data = w83792d_update_device(dev);
735 return sprintf(buf, "%ld\n", (long)data->thermal_cruise[nr-1]);
736 }
737
738 static ssize_t
739 store_thermal_cruise(struct device *dev, struct device_attribute *attr,
740 const char *buf, size_t count)
741 {
742 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
743 int nr = sensor_attr->index - 1;
744 struct i2c_client *client = to_i2c_client(dev);
745 struct w83792d_data *data = i2c_get_clientdata(client);
746 u32 val;
747 u8 target_tmp=0, target_mask=0;
748
749 val = simple_strtoul(buf, NULL, 10);
750 target_tmp = val;
751 target_tmp = target_tmp & 0x7f;
752 mutex_lock(&data->update_lock);
753 target_mask = w83792d_read_value(client, W83792D_REG_THERMAL[nr]) & 0x80;
754 data->thermal_cruise[nr] = SENSORS_LIMIT(target_tmp, 0, 255);
755 w83792d_write_value(client, W83792D_REG_THERMAL[nr],
756 (data->thermal_cruise[nr]) | target_mask);
757 mutex_unlock(&data->update_lock);
758
759 return count;
760 }
761
762 /* For Smart Fan I/Thermal Cruise and Smart Fan II */
763 static ssize_t
764 show_tolerance(struct device *dev, struct device_attribute *attr,
765 char *buf)
766 {
767 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
768 int nr = sensor_attr->index;
769 struct w83792d_data *data = w83792d_update_device(dev);
770 return sprintf(buf, "%ld\n", (long)data->tolerance[nr-1]);
771 }
772
773 static ssize_t
774 store_tolerance(struct device *dev, struct device_attribute *attr,
775 const char *buf, size_t count)
776 {
777 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
778 int nr = sensor_attr->index - 1;
779 struct i2c_client *client = to_i2c_client(dev);
780 struct w83792d_data *data = i2c_get_clientdata(client);
781 u32 val;
782 u8 tol_tmp, tol_mask;
783
784 val = simple_strtoul(buf, NULL, 10);
785 mutex_lock(&data->update_lock);
786 tol_mask = w83792d_read_value(client,
787 W83792D_REG_TOLERANCE[nr]) & ((nr == 1) ? 0x0f : 0xf0);
788 tol_tmp = SENSORS_LIMIT(val, 0, 15);
789 tol_tmp &= 0x0f;
790 data->tolerance[nr] = tol_tmp;
791 if (nr == 1) {
792 tol_tmp <<= 4;
793 }
794 w83792d_write_value(client, W83792D_REG_TOLERANCE[nr],
795 tol_mask | tol_tmp);
796 mutex_unlock(&data->update_lock);
797
798 return count;
799 }
800
801 /* For Smart Fan II */
802 static ssize_t
803 show_sf2_point(struct device *dev, struct device_attribute *attr,
804 char *buf)
805 {
806 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
807 int nr = sensor_attr->nr;
808 int index = sensor_attr->index;
809 struct w83792d_data *data = w83792d_update_device(dev);
810 return sprintf(buf, "%ld\n", (long)data->sf2_points[index-1][nr-1]);
811 }
812
813 static ssize_t
814 store_sf2_point(struct device *dev, struct device_attribute *attr,
815 const char *buf, size_t count)
816 {
817 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
818 int nr = sensor_attr->nr - 1;
819 int index = sensor_attr->index - 1;
820 struct i2c_client *client = to_i2c_client(dev);
821 struct w83792d_data *data = i2c_get_clientdata(client);
822 u32 val;
823 u8 mask_tmp = 0;
824
825 val = simple_strtoul(buf, NULL, 10);
826 mutex_lock(&data->update_lock);
827 data->sf2_points[index][nr] = SENSORS_LIMIT(val, 0, 127);
828 mask_tmp = w83792d_read_value(client,
829 W83792D_REG_POINTS[index][nr]) & 0x80;
830 w83792d_write_value(client, W83792D_REG_POINTS[index][nr],
831 mask_tmp|data->sf2_points[index][nr]);
832 mutex_unlock(&data->update_lock);
833
834 return count;
835 }
836
837 static ssize_t
838 show_sf2_level(struct device *dev, struct device_attribute *attr,
839 char *buf)
840 {
841 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
842 int nr = sensor_attr->nr;
843 int index = sensor_attr->index;
844 struct w83792d_data *data = w83792d_update_device(dev);
845 return sprintf(buf, "%d\n",
846 (((data->sf2_levels[index-1][nr]) * 100) / 15));
847 }
848
849 static ssize_t
850 store_sf2_level(struct device *dev, struct device_attribute *attr,
851 const char *buf, size_t count)
852 {
853 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
854 int nr = sensor_attr->nr;
855 int index = sensor_attr->index - 1;
856 struct i2c_client *client = to_i2c_client(dev);
857 struct w83792d_data *data = i2c_get_clientdata(client);
858 u32 val;
859 u8 mask_tmp=0, level_tmp=0;
860
861 val = simple_strtoul(buf, NULL, 10);
862 mutex_lock(&data->update_lock);
863 data->sf2_levels[index][nr] = SENSORS_LIMIT((val * 15) / 100, 0, 15);
864 mask_tmp = w83792d_read_value(client, W83792D_REG_LEVELS[index][nr])
865 & ((nr==3) ? 0xf0 : 0x0f);
866 if (nr==3) {
867 level_tmp = data->sf2_levels[index][nr];
868 } else {
869 level_tmp = data->sf2_levels[index][nr] << 4;
870 }
871 w83792d_write_value(client, W83792D_REG_LEVELS[index][nr], level_tmp | mask_tmp);
872 mutex_unlock(&data->update_lock);
873
874 return count;
875 }
876
877
878 static int
879 w83792d_detect_subclients(struct i2c_client *new_client)
880 {
881 int i, id, err;
882 int address = new_client->addr;
883 u8 val;
884 struct i2c_adapter *adapter = new_client->adapter;
885 struct w83792d_data *data = i2c_get_clientdata(new_client);
886
887 id = i2c_adapter_id(adapter);
888 if (force_subclients[0] == id && force_subclients[1] == address) {
889 for (i = 2; i <= 3; i++) {
890 if (force_subclients[i] < 0x48 ||
891 force_subclients[i] > 0x4f) {
892 dev_err(&new_client->dev, "invalid subclient "
893 "address %d; must be 0x48-0x4f\n",
894 force_subclients[i]);
895 err = -ENODEV;
896 goto ERROR_SC_0;
897 }
898 }
899 w83792d_write_value(new_client, W83792D_REG_I2C_SUBADDR,
900 (force_subclients[2] & 0x07) |
901 ((force_subclients[3] & 0x07) << 4));
902 }
903
904 val = w83792d_read_value(new_client, W83792D_REG_I2C_SUBADDR);
905 if (!(val & 0x08)) {
906 data->lm75[0] = i2c_new_dummy(adapter, 0x48 + (val & 0x7));
907 }
908 if (!(val & 0x80)) {
909 if ((data->lm75[0] != NULL) &&
910 ((val & 0x7) == ((val >> 4) & 0x7))) {
911 dev_err(&new_client->dev, "duplicate addresses 0x%x, "
912 "use force_subclient\n", data->lm75[0]->addr);
913 err = -ENODEV;
914 goto ERROR_SC_1;
915 }
916 data->lm75[1] = i2c_new_dummy(adapter,
917 0x48 + ((val >> 4) & 0x7));
918 }
919
920 return 0;
921
922 /* Undo inits in case of errors */
923
924 ERROR_SC_1:
925 if (data->lm75[0] != NULL)
926 i2c_unregister_device(data->lm75[0]);
927 ERROR_SC_0:
928 return err;
929 }
930
931 static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0);
932 static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1);
933 static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2);
934 static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3);
935 static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 4);
936 static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 5);
937 static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 6);
938 static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 7);
939 static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_in, NULL, 8);
940 static SENSOR_DEVICE_ATTR(in0_min, S_IWUSR | S_IRUGO,
941 show_in_min, store_in_min, 0);
942 static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO,
943 show_in_min, store_in_min, 1);
944 static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO,
945 show_in_min, store_in_min, 2);
946 static SENSOR_DEVICE_ATTR(in3_min, S_IWUSR | S_IRUGO,
947 show_in_min, store_in_min, 3);
948 static SENSOR_DEVICE_ATTR(in4_min, S_IWUSR | S_IRUGO,
949 show_in_min, store_in_min, 4);
950 static SENSOR_DEVICE_ATTR(in5_min, S_IWUSR | S_IRUGO,
951 show_in_min, store_in_min, 5);
952 static SENSOR_DEVICE_ATTR(in6_min, S_IWUSR | S_IRUGO,
953 show_in_min, store_in_min, 6);
954 static SENSOR_DEVICE_ATTR(in7_min, S_IWUSR | S_IRUGO,
955 show_in_min, store_in_min, 7);
956 static SENSOR_DEVICE_ATTR(in8_min, S_IWUSR | S_IRUGO,
957 show_in_min, store_in_min, 8);
958 static SENSOR_DEVICE_ATTR(in0_max, S_IWUSR | S_IRUGO,
959 show_in_max, store_in_max, 0);
960 static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO,
961 show_in_max, store_in_max, 1);
962 static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO,
963 show_in_max, store_in_max, 2);
964 static SENSOR_DEVICE_ATTR(in3_max, S_IWUSR | S_IRUGO,
965 show_in_max, store_in_max, 3);
966 static SENSOR_DEVICE_ATTR(in4_max, S_IWUSR | S_IRUGO,
967 show_in_max, store_in_max, 4);
968 static SENSOR_DEVICE_ATTR(in5_max, S_IWUSR | S_IRUGO,
969 show_in_max, store_in_max, 5);
970 static SENSOR_DEVICE_ATTR(in6_max, S_IWUSR | S_IRUGO,
971 show_in_max, store_in_max, 6);
972 static SENSOR_DEVICE_ATTR(in7_max, S_IWUSR | S_IRUGO,
973 show_in_max, store_in_max, 7);
974 static SENSOR_DEVICE_ATTR(in8_max, S_IWUSR | S_IRUGO,
975 show_in_max, store_in_max, 8);
976 static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp1, NULL, 0, 0);
977 static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp23, NULL, 0, 0);
978 static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp23, NULL, 1, 0);
979 static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR,
980 show_temp1, store_temp1, 0, 1);
981 static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp23,
982 store_temp23, 0, 2);
983 static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp23,
984 store_temp23, 1, 2);
985 static SENSOR_DEVICE_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR,
986 show_temp1, store_temp1, 0, 2);
987 static SENSOR_DEVICE_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR,
988 show_temp23, store_temp23, 0, 4);
989 static SENSOR_DEVICE_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR,
990 show_temp23, store_temp23, 1, 4);
991 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
992 static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
993 static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
994 static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 2);
995 static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 3);
996 static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 4);
997 static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 5);
998 static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 6);
999 static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 7);
1000 static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 8);
1001 static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 9);
1002 static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 10);
1003 static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 11);
1004 static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 12);
1005 static SENSOR_DEVICE_ATTR(fan7_alarm, S_IRUGO, show_alarm, NULL, 15);
1006 static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 19);
1007 static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 20);
1008 static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 21);
1009 static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 22);
1010 static SENSOR_DEVICE_ATTR(fan6_alarm, S_IRUGO, show_alarm, NULL, 23);
1011 static DEVICE_ATTR(chassis, S_IRUGO, show_regs_chassis, NULL);
1012 static DEVICE_ATTR(chassis_clear, S_IRUGO | S_IWUSR,
1013 show_chassis_clear, store_chassis_clear);
1014 static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0);
1015 static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1);
1016 static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2);
1017 static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO,
1018 show_pwmenable, store_pwmenable, 1);
1019 static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO,
1020 show_pwmenable, store_pwmenable, 2);
1021 static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO,
1022 show_pwmenable, store_pwmenable, 3);
1023 static SENSOR_DEVICE_ATTR(pwm1_mode, S_IWUSR | S_IRUGO,
1024 show_pwm_mode, store_pwm_mode, 0);
1025 static SENSOR_DEVICE_ATTR(pwm2_mode, S_IWUSR | S_IRUGO,
1026 show_pwm_mode, store_pwm_mode, 1);
1027 static SENSOR_DEVICE_ATTR(pwm3_mode, S_IWUSR | S_IRUGO,
1028 show_pwm_mode, store_pwm_mode, 2);
1029 static SENSOR_DEVICE_ATTR(tolerance1, S_IWUSR | S_IRUGO,
1030 show_tolerance, store_tolerance, 1);
1031 static SENSOR_DEVICE_ATTR(tolerance2, S_IWUSR | S_IRUGO,
1032 show_tolerance, store_tolerance, 2);
1033 static SENSOR_DEVICE_ATTR(tolerance3, S_IWUSR | S_IRUGO,
1034 show_tolerance, store_tolerance, 3);
1035 static SENSOR_DEVICE_ATTR(thermal_cruise1, S_IWUSR | S_IRUGO,
1036 show_thermal_cruise, store_thermal_cruise, 1);
1037 static SENSOR_DEVICE_ATTR(thermal_cruise2, S_IWUSR | S_IRUGO,
1038 show_thermal_cruise, store_thermal_cruise, 2);
1039 static SENSOR_DEVICE_ATTR(thermal_cruise3, S_IWUSR | S_IRUGO,
1040 show_thermal_cruise, store_thermal_cruise, 3);
1041 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan1, S_IRUGO | S_IWUSR,
1042 show_sf2_point, store_sf2_point, 1, 1);
1043 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan1, S_IRUGO | S_IWUSR,
1044 show_sf2_point, store_sf2_point, 2, 1);
1045 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan1, S_IRUGO | S_IWUSR,
1046 show_sf2_point, store_sf2_point, 3, 1);
1047 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan1, S_IRUGO | S_IWUSR,
1048 show_sf2_point, store_sf2_point, 4, 1);
1049 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan2, S_IRUGO | S_IWUSR,
1050 show_sf2_point, store_sf2_point, 1, 2);
1051 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan2, S_IRUGO | S_IWUSR,
1052 show_sf2_point, store_sf2_point, 2, 2);
1053 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan2, S_IRUGO | S_IWUSR,
1054 show_sf2_point, store_sf2_point, 3, 2);
1055 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan2, S_IRUGO | S_IWUSR,
1056 show_sf2_point, store_sf2_point, 4, 2);
1057 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan3, S_IRUGO | S_IWUSR,
1058 show_sf2_point, store_sf2_point, 1, 3);
1059 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan3, S_IRUGO | S_IWUSR,
1060 show_sf2_point, store_sf2_point, 2, 3);
1061 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan3, S_IRUGO | S_IWUSR,
1062 show_sf2_point, store_sf2_point, 3, 3);
1063 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan3, S_IRUGO | S_IWUSR,
1064 show_sf2_point, store_sf2_point, 4, 3);
1065 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan1, S_IRUGO | S_IWUSR,
1066 show_sf2_level, store_sf2_level, 1, 1);
1067 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan1, S_IRUGO | S_IWUSR,
1068 show_sf2_level, store_sf2_level, 2, 1);
1069 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan1, S_IRUGO | S_IWUSR,
1070 show_sf2_level, store_sf2_level, 3, 1);
1071 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan2, S_IRUGO | S_IWUSR,
1072 show_sf2_level, store_sf2_level, 1, 2);
1073 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan2, S_IRUGO | S_IWUSR,
1074 show_sf2_level, store_sf2_level, 2, 2);
1075 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan2, S_IRUGO | S_IWUSR,
1076 show_sf2_level, store_sf2_level, 3, 2);
1077 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan3, S_IRUGO | S_IWUSR,
1078 show_sf2_level, store_sf2_level, 1, 3);
1079 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan3, S_IRUGO | S_IWUSR,
1080 show_sf2_level, store_sf2_level, 2, 3);
1081 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan3, S_IRUGO | S_IWUSR,
1082 show_sf2_level, store_sf2_level, 3, 3);
1083 static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 1);
1084 static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 2);
1085 static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 3);
1086 static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 4);
1087 static SENSOR_DEVICE_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 5);
1088 static SENSOR_DEVICE_ATTR(fan6_input, S_IRUGO, show_fan, NULL, 6);
1089 static SENSOR_DEVICE_ATTR(fan7_input, S_IRUGO, show_fan, NULL, 7);
1090 static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO,
1091 show_fan_min, store_fan_min, 1);
1092 static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO,
1093 show_fan_min, store_fan_min, 2);
1094 static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO,
1095 show_fan_min, store_fan_min, 3);
1096 static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO,
1097 show_fan_min, store_fan_min, 4);
1098 static SENSOR_DEVICE_ATTR(fan5_min, S_IWUSR | S_IRUGO,
1099 show_fan_min, store_fan_min, 5);
1100 static SENSOR_DEVICE_ATTR(fan6_min, S_IWUSR | S_IRUGO,
1101 show_fan_min, store_fan_min, 6);
1102 static SENSOR_DEVICE_ATTR(fan7_min, S_IWUSR | S_IRUGO,
1103 show_fan_min, store_fan_min, 7);
1104 static SENSOR_DEVICE_ATTR(fan1_div, S_IWUSR | S_IRUGO,
1105 show_fan_div, store_fan_div, 1);
1106 static SENSOR_DEVICE_ATTR(fan2_div, S_IWUSR | S_IRUGO,
1107 show_fan_div, store_fan_div, 2);
1108 static SENSOR_DEVICE_ATTR(fan3_div, S_IWUSR | S_IRUGO,
1109 show_fan_div, store_fan_div, 3);
1110 static SENSOR_DEVICE_ATTR(fan4_div, S_IWUSR | S_IRUGO,
1111 show_fan_div, store_fan_div, 4);
1112 static SENSOR_DEVICE_ATTR(fan5_div, S_IWUSR | S_IRUGO,
1113 show_fan_div, store_fan_div, 5);
1114 static SENSOR_DEVICE_ATTR(fan6_div, S_IWUSR | S_IRUGO,
1115 show_fan_div, store_fan_div, 6);
1116 static SENSOR_DEVICE_ATTR(fan7_div, S_IWUSR | S_IRUGO,
1117 show_fan_div, store_fan_div, 7);
1118
1119 static struct attribute *w83792d_attributes_fan[4][5] = {
1120 {
1121 &sensor_dev_attr_fan4_input.dev_attr.attr,
1122 &sensor_dev_attr_fan4_min.dev_attr.attr,
1123 &sensor_dev_attr_fan4_div.dev_attr.attr,
1124 &sensor_dev_attr_fan4_alarm.dev_attr.attr,
1125 NULL
1126 }, {
1127 &sensor_dev_attr_fan5_input.dev_attr.attr,
1128 &sensor_dev_attr_fan5_min.dev_attr.attr,
1129 &sensor_dev_attr_fan5_div.dev_attr.attr,
1130 &sensor_dev_attr_fan5_alarm.dev_attr.attr,
1131 NULL
1132 }, {
1133 &sensor_dev_attr_fan6_input.dev_attr.attr,
1134 &sensor_dev_attr_fan6_min.dev_attr.attr,
1135 &sensor_dev_attr_fan6_div.dev_attr.attr,
1136 &sensor_dev_attr_fan6_alarm.dev_attr.attr,
1137 NULL
1138 }, {
1139 &sensor_dev_attr_fan7_input.dev_attr.attr,
1140 &sensor_dev_attr_fan7_min.dev_attr.attr,
1141 &sensor_dev_attr_fan7_div.dev_attr.attr,
1142 &sensor_dev_attr_fan7_alarm.dev_attr.attr,
1143 NULL
1144 }
1145 };
1146
1147 static const struct attribute_group w83792d_group_fan[4] = {
1148 { .attrs = w83792d_attributes_fan[0] },
1149 { .attrs = w83792d_attributes_fan[1] },
1150 { .attrs = w83792d_attributes_fan[2] },
1151 { .attrs = w83792d_attributes_fan[3] },
1152 };
1153
1154 static struct attribute *w83792d_attributes[] = {
1155 &sensor_dev_attr_in0_input.dev_attr.attr,
1156 &sensor_dev_attr_in0_max.dev_attr.attr,
1157 &sensor_dev_attr_in0_min.dev_attr.attr,
1158 &sensor_dev_attr_in1_input.dev_attr.attr,
1159 &sensor_dev_attr_in1_max.dev_attr.attr,
1160 &sensor_dev_attr_in1_min.dev_attr.attr,
1161 &sensor_dev_attr_in2_input.dev_attr.attr,
1162 &sensor_dev_attr_in2_max.dev_attr.attr,
1163 &sensor_dev_attr_in2_min.dev_attr.attr,
1164 &sensor_dev_attr_in3_input.dev_attr.attr,
1165 &sensor_dev_attr_in3_max.dev_attr.attr,
1166 &sensor_dev_attr_in3_min.dev_attr.attr,
1167 &sensor_dev_attr_in4_input.dev_attr.attr,
1168 &sensor_dev_attr_in4_max.dev_attr.attr,
1169 &sensor_dev_attr_in4_min.dev_attr.attr,
1170 &sensor_dev_attr_in5_input.dev_attr.attr,
1171 &sensor_dev_attr_in5_max.dev_attr.attr,
1172 &sensor_dev_attr_in5_min.dev_attr.attr,
1173 &sensor_dev_attr_in6_input.dev_attr.attr,
1174 &sensor_dev_attr_in6_max.dev_attr.attr,
1175 &sensor_dev_attr_in6_min.dev_attr.attr,
1176 &sensor_dev_attr_in7_input.dev_attr.attr,
1177 &sensor_dev_attr_in7_max.dev_attr.attr,
1178 &sensor_dev_attr_in7_min.dev_attr.attr,
1179 &sensor_dev_attr_in8_input.dev_attr.attr,
1180 &sensor_dev_attr_in8_max.dev_attr.attr,
1181 &sensor_dev_attr_in8_min.dev_attr.attr,
1182 &sensor_dev_attr_in0_alarm.dev_attr.attr,
1183 &sensor_dev_attr_in1_alarm.dev_attr.attr,
1184 &sensor_dev_attr_in2_alarm.dev_attr.attr,
1185 &sensor_dev_attr_in3_alarm.dev_attr.attr,
1186 &sensor_dev_attr_in4_alarm.dev_attr.attr,
1187 &sensor_dev_attr_in5_alarm.dev_attr.attr,
1188 &sensor_dev_attr_in6_alarm.dev_attr.attr,
1189 &sensor_dev_attr_in7_alarm.dev_attr.attr,
1190 &sensor_dev_attr_in8_alarm.dev_attr.attr,
1191 &sensor_dev_attr_temp1_input.dev_attr.attr,
1192 &sensor_dev_attr_temp1_max.dev_attr.attr,
1193 &sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
1194 &sensor_dev_attr_temp2_input.dev_attr.attr,
1195 &sensor_dev_attr_temp2_max.dev_attr.attr,
1196 &sensor_dev_attr_temp2_max_hyst.dev_attr.attr,
1197 &sensor_dev_attr_temp3_input.dev_attr.attr,
1198 &sensor_dev_attr_temp3_max.dev_attr.attr,
1199 &sensor_dev_attr_temp3_max_hyst.dev_attr.attr,
1200 &sensor_dev_attr_temp1_alarm.dev_attr.attr,
1201 &sensor_dev_attr_temp2_alarm.dev_attr.attr,
1202 &sensor_dev_attr_temp3_alarm.dev_attr.attr,
1203 &sensor_dev_attr_pwm1.dev_attr.attr,
1204 &sensor_dev_attr_pwm1_mode.dev_attr.attr,
1205 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
1206 &sensor_dev_attr_pwm2.dev_attr.attr,
1207 &sensor_dev_attr_pwm2_mode.dev_attr.attr,
1208 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
1209 &sensor_dev_attr_pwm3.dev_attr.attr,
1210 &sensor_dev_attr_pwm3_mode.dev_attr.attr,
1211 &sensor_dev_attr_pwm3_enable.dev_attr.attr,
1212 &dev_attr_alarms.attr,
1213 &dev_attr_chassis.attr,
1214 &dev_attr_chassis_clear.attr,
1215 &sensor_dev_attr_tolerance1.dev_attr.attr,
1216 &sensor_dev_attr_thermal_cruise1.dev_attr.attr,
1217 &sensor_dev_attr_tolerance2.dev_attr.attr,
1218 &sensor_dev_attr_thermal_cruise2.dev_attr.attr,
1219 &sensor_dev_attr_tolerance3.dev_attr.attr,
1220 &sensor_dev_attr_thermal_cruise3.dev_attr.attr,
1221 &sensor_dev_attr_sf2_point1_fan1.dev_attr.attr,
1222 &sensor_dev_attr_sf2_point2_fan1.dev_attr.attr,
1223 &sensor_dev_attr_sf2_point3_fan1.dev_attr.attr,
1224 &sensor_dev_attr_sf2_point4_fan1.dev_attr.attr,
1225 &sensor_dev_attr_sf2_point1_fan2.dev_attr.attr,
1226 &sensor_dev_attr_sf2_point2_fan2.dev_attr.attr,
1227 &sensor_dev_attr_sf2_point3_fan2.dev_attr.attr,
1228 &sensor_dev_attr_sf2_point4_fan2.dev_attr.attr,
1229 &sensor_dev_attr_sf2_point1_fan3.dev_attr.attr,
1230 &sensor_dev_attr_sf2_point2_fan3.dev_attr.attr,
1231 &sensor_dev_attr_sf2_point3_fan3.dev_attr.attr,
1232 &sensor_dev_attr_sf2_point4_fan3.dev_attr.attr,
1233 &sensor_dev_attr_sf2_level1_fan1.dev_attr.attr,
1234 &sensor_dev_attr_sf2_level2_fan1.dev_attr.attr,
1235 &sensor_dev_attr_sf2_level3_fan1.dev_attr.attr,
1236 &sensor_dev_attr_sf2_level1_fan2.dev_attr.attr,
1237 &sensor_dev_attr_sf2_level2_fan2.dev_attr.attr,
1238 &sensor_dev_attr_sf2_level3_fan2.dev_attr.attr,
1239 &sensor_dev_attr_sf2_level1_fan3.dev_attr.attr,
1240 &sensor_dev_attr_sf2_level2_fan3.dev_attr.attr,
1241 &sensor_dev_attr_sf2_level3_fan3.dev_attr.attr,
1242 &sensor_dev_attr_fan1_input.dev_attr.attr,
1243 &sensor_dev_attr_fan1_min.dev_attr.attr,
1244 &sensor_dev_attr_fan1_div.dev_attr.attr,
1245 &sensor_dev_attr_fan1_alarm.dev_attr.attr,
1246 &sensor_dev_attr_fan2_input.dev_attr.attr,
1247 &sensor_dev_attr_fan2_min.dev_attr.attr,
1248 &sensor_dev_attr_fan2_div.dev_attr.attr,
1249 &sensor_dev_attr_fan2_alarm.dev_attr.attr,
1250 &sensor_dev_attr_fan3_input.dev_attr.attr,
1251 &sensor_dev_attr_fan3_min.dev_attr.attr,
1252 &sensor_dev_attr_fan3_div.dev_attr.attr,
1253 &sensor_dev_attr_fan3_alarm.dev_attr.attr,
1254 NULL
1255 };
1256
1257 static const struct attribute_group w83792d_group = {
1258 .attrs = w83792d_attributes,
1259 };
1260
1261 /* Return 0 if detection is successful, -ENODEV otherwise */
1262 static int
1263 w83792d_detect(struct i2c_client *client, int kind, struct i2c_board_info *info)
1264 {
1265 struct i2c_adapter *adapter = client->adapter;
1266 int val1, val2;
1267 unsigned short address = client->addr;
1268
1269 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
1270 return -ENODEV;
1271 }
1272
1273 /* The w83792d may be stuck in some other bank than bank 0. This may
1274 make reading other information impossible. Specify a force=... or
1275 force_*=... parameter, and the Winbond will be reset to the right
1276 bank. */
1277 if (kind < 0) {
1278 if (w83792d_read_value(client, W83792D_REG_CONFIG) & 0x80) {
1279 return -ENODEV;
1280 }
1281 val1 = w83792d_read_value(client, W83792D_REG_BANK);
1282 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN);
1283 /* Check for Winbond ID if in bank 0 */
1284 if (!(val1 & 0x07)) { /* is Bank0 */
1285 if (((!(val1 & 0x80)) && (val2 != 0xa3)) ||
1286 ((val1 & 0x80) && (val2 != 0x5c))) {
1287 return -ENODEV;
1288 }
1289 }
1290 /* If Winbond chip, address of chip and W83792D_REG_I2C_ADDR
1291 should match */
1292 if (w83792d_read_value(client,
1293 W83792D_REG_I2C_ADDR) != address) {
1294 return -ENODEV;
1295 }
1296 }
1297
1298 /* We have either had a force parameter, or we have already detected the
1299 Winbond. Put it now into bank 0 and Vendor ID High Byte */
1300 w83792d_write_value(client,
1301 W83792D_REG_BANK,
1302 (w83792d_read_value(client,
1303 W83792D_REG_BANK) & 0x78) | 0x80);
1304
1305 /* Determine the chip type. */
1306 if (kind <= 0) {
1307 /* get vendor ID */
1308 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN);
1309 if (val2 != 0x5c) { /* the vendor is NOT Winbond */
1310 return -ENODEV;
1311 }
1312 val1 = w83792d_read_value(client, W83792D_REG_WCHIPID);
1313 if (val1 == 0x7a) {
1314 kind = w83792d;
1315 } else {
1316 if (kind == 0)
1317 dev_warn(&adapter->dev,
1318 "w83792d: Ignoring 'force' parameter for"
1319 " unknown chip at adapter %d, address"
1320 " 0x%02x\n", i2c_adapter_id(adapter),
1321 address);
1322 return -ENODEV;
1323 }
1324 }
1325
1326 strlcpy(info->type, "w83792d", I2C_NAME_SIZE);
1327
1328 return 0;
1329 }
1330
1331 static int
1332 w83792d_probe(struct i2c_client *client, const struct i2c_device_id *id)
1333 {
1334 struct w83792d_data *data;
1335 struct device *dev = &client->dev;
1336 int i, val1, err;
1337
1338 data = kzalloc(sizeof(struct w83792d_data), GFP_KERNEL);
1339 if (!data) {
1340 err = -ENOMEM;
1341 goto ERROR0;
1342 }
1343
1344 i2c_set_clientdata(client, data);
1345 data->valid = 0;
1346 mutex_init(&data->update_lock);
1347
1348 err = w83792d_detect_subclients(client);
1349 if (err)
1350 goto ERROR1;
1351
1352 /* Initialize the chip */
1353 w83792d_init_client(client);
1354
1355 /* A few vars need to be filled upon startup */
1356 for (i = 0; i < 7; i++) {
1357 data->fan_min[i] = w83792d_read_value(client,
1358 W83792D_REG_FAN_MIN[i]);
1359 }
1360
1361 /* Register sysfs hooks */
1362 if ((err = sysfs_create_group(&dev->kobj, &w83792d_group)))
1363 goto ERROR3;
1364
1365 /* Read GPIO enable register to check if pins for fan 4,5 are used as
1366 GPIO */
1367 val1 = w83792d_read_value(client, W83792D_REG_GPIO_EN);
1368
1369 if (!(val1 & 0x40))
1370 if ((err = sysfs_create_group(&dev->kobj,
1371 &w83792d_group_fan[0])))
1372 goto exit_remove_files;
1373
1374 if (!(val1 & 0x20))
1375 if ((err = sysfs_create_group(&dev->kobj,
1376 &w83792d_group_fan[1])))
1377 goto exit_remove_files;
1378
1379 val1 = w83792d_read_value(client, W83792D_REG_PIN);
1380 if (val1 & 0x40)
1381 if ((err = sysfs_create_group(&dev->kobj,
1382 &w83792d_group_fan[2])))
1383 goto exit_remove_files;
1384
1385 if (val1 & 0x04)
1386 if ((err = sysfs_create_group(&dev->kobj,
1387 &w83792d_group_fan[3])))
1388 goto exit_remove_files;
1389
1390 data->hwmon_dev = hwmon_device_register(dev);
1391 if (IS_ERR(data->hwmon_dev)) {
1392 err = PTR_ERR(data->hwmon_dev);
1393 goto exit_remove_files;
1394 }
1395
1396 return 0;
1397
1398 exit_remove_files:
1399 sysfs_remove_group(&dev->kobj, &w83792d_group);
1400 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++)
1401 sysfs_remove_group(&dev->kobj, &w83792d_group_fan[i]);
1402 ERROR3:
1403 if (data->lm75[0] != NULL)
1404 i2c_unregister_device(data->lm75[0]);
1405 if (data->lm75[1] != NULL)
1406 i2c_unregister_device(data->lm75[1]);
1407 ERROR1:
1408 kfree(data);
1409 ERROR0:
1410 return err;
1411 }
1412
1413 static int
1414 w83792d_remove(struct i2c_client *client)
1415 {
1416 struct w83792d_data *data = i2c_get_clientdata(client);
1417 int i;
1418
1419 hwmon_device_unregister(data->hwmon_dev);
1420 sysfs_remove_group(&client->dev.kobj, &w83792d_group);
1421 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++)
1422 sysfs_remove_group(&client->dev.kobj,
1423 &w83792d_group_fan[i]);
1424
1425 if (data->lm75[0] != NULL)
1426 i2c_unregister_device(data->lm75[0]);
1427 if (data->lm75[1] != NULL)
1428 i2c_unregister_device(data->lm75[1]);
1429
1430 kfree(data);
1431 return 0;
1432 }
1433
1434 static void
1435 w83792d_init_client(struct i2c_client *client)
1436 {
1437 u8 temp2_cfg, temp3_cfg, vid_in_b;
1438
1439 if (init) {
1440 w83792d_write_value(client, W83792D_REG_CONFIG, 0x80);
1441 }
1442 /* Clear the bit6 of W83792D_REG_VID_IN_B(set it into 0):
1443 W83792D_REG_VID_IN_B bit6 = 0: the high/low limit of
1444 vin0/vin1 can be modified by user;
1445 W83792D_REG_VID_IN_B bit6 = 1: the high/low limit of
1446 vin0/vin1 auto-updated, can NOT be modified by user. */
1447 vid_in_b = w83792d_read_value(client, W83792D_REG_VID_IN_B);
1448 w83792d_write_value(client, W83792D_REG_VID_IN_B,
1449 vid_in_b & 0xbf);
1450
1451 temp2_cfg = w83792d_read_value(client, W83792D_REG_TEMP2_CONFIG);
1452 temp3_cfg = w83792d_read_value(client, W83792D_REG_TEMP3_CONFIG);
1453 w83792d_write_value(client, W83792D_REG_TEMP2_CONFIG,
1454 temp2_cfg & 0xe6);
1455 w83792d_write_value(client, W83792D_REG_TEMP3_CONFIG,
1456 temp3_cfg & 0xe6);
1457
1458 /* Start monitoring */
1459 w83792d_write_value(client, W83792D_REG_CONFIG,
1460 (w83792d_read_value(client,
1461 W83792D_REG_CONFIG) & 0xf7)
1462 | 0x01);
1463 }
1464
1465 static struct w83792d_data *w83792d_update_device(struct device *dev)
1466 {
1467 struct i2c_client *client = to_i2c_client(dev);
1468 struct w83792d_data *data = i2c_get_clientdata(client);
1469 int i, j;
1470 u8 reg_array_tmp[4], reg_tmp;
1471
1472 mutex_lock(&data->update_lock);
1473
1474 if (time_after
1475 (jiffies - data->last_updated, (unsigned long) (HZ * 3))
1476 || time_before(jiffies, data->last_updated) || !data->valid) {
1477 dev_dbg(dev, "Starting device update\n");
1478
1479 /* Update the voltages measured value and limits */
1480 for (i = 0; i < 9; i++) {
1481 data->in[i] = w83792d_read_value(client,
1482 W83792D_REG_IN[i]);
1483 data->in_max[i] = w83792d_read_value(client,
1484 W83792D_REG_IN_MAX[i]);
1485 data->in_min[i] = w83792d_read_value(client,
1486 W83792D_REG_IN_MIN[i]);
1487 }
1488 data->low_bits = w83792d_read_value(client,
1489 W83792D_REG_LOW_BITS1) +
1490 (w83792d_read_value(client,
1491 W83792D_REG_LOW_BITS2) << 8);
1492 for (i = 0; i < 7; i++) {
1493 /* Update the Fan measured value and limits */
1494 data->fan[i] = w83792d_read_value(client,
1495 W83792D_REG_FAN[i]);
1496 data->fan_min[i] = w83792d_read_value(client,
1497 W83792D_REG_FAN_MIN[i]);
1498 /* Update the PWM/DC Value and PWM/DC flag */
1499 data->pwm[i] = w83792d_read_value(client,
1500 W83792D_REG_PWM[i]);
1501 }
1502
1503 reg_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG);
1504 data->pwmenable[0] = reg_tmp & 0x03;
1505 data->pwmenable[1] = (reg_tmp>>2) & 0x03;
1506 data->pwmenable[2] = (reg_tmp>>4) & 0x03;
1507
1508 for (i = 0; i < 3; i++) {
1509 data->temp1[i] = w83792d_read_value(client,
1510 W83792D_REG_TEMP1[i]);
1511 }
1512 for (i = 0; i < 2; i++) {
1513 for (j = 0; j < 6; j++) {
1514 data->temp_add[i][j] = w83792d_read_value(
1515 client,W83792D_REG_TEMP_ADD[i][j]);
1516 }
1517 }
1518
1519 /* Update the Fan Divisor */
1520 for (i = 0; i < 4; i++) {
1521 reg_array_tmp[i] = w83792d_read_value(client,
1522 W83792D_REG_FAN_DIV[i]);
1523 }
1524 data->fan_div[0] = reg_array_tmp[0] & 0x07;
1525 data->fan_div[1] = (reg_array_tmp[0] >> 4) & 0x07;
1526 data->fan_div[2] = reg_array_tmp[1] & 0x07;
1527 data->fan_div[3] = (reg_array_tmp[1] >> 4) & 0x07;
1528 data->fan_div[4] = reg_array_tmp[2] & 0x07;
1529 data->fan_div[5] = (reg_array_tmp[2] >> 4) & 0x07;
1530 data->fan_div[6] = reg_array_tmp[3] & 0x07;
1531
1532 /* Update the realtime status */
1533 data->alarms = w83792d_read_value(client, W83792D_REG_ALARM1) +
1534 (w83792d_read_value(client, W83792D_REG_ALARM2) << 8) +
1535 (w83792d_read_value(client, W83792D_REG_ALARM3) << 16);
1536
1537 /* Update CaseOpen status and it's CLR_CHS. */
1538 data->chassis = (w83792d_read_value(client,
1539 W83792D_REG_CHASSIS) >> 5) & 0x01;
1540 data->chassis_clear = (w83792d_read_value(client,
1541 W83792D_REG_CHASSIS_CLR) >> 7) & 0x01;
1542
1543 /* Update Thermal Cruise/Smart Fan I target value */
1544 for (i = 0; i < 3; i++) {
1545 data->thermal_cruise[i] =
1546 w83792d_read_value(client,
1547 W83792D_REG_THERMAL[i]) & 0x7f;
1548 }
1549
1550 /* Update Smart Fan I/II tolerance */
1551 reg_tmp = w83792d_read_value(client, W83792D_REG_TOLERANCE[0]);
1552 data->tolerance[0] = reg_tmp & 0x0f;
1553 data->tolerance[1] = (reg_tmp >> 4) & 0x0f;
1554 data->tolerance[2] = w83792d_read_value(client,
1555 W83792D_REG_TOLERANCE[2]) & 0x0f;
1556
1557 /* Update Smart Fan II temperature points */
1558 for (i = 0; i < 3; i++) {
1559 for (j = 0; j < 4; j++) {
1560 data->sf2_points[i][j] = w83792d_read_value(
1561 client,W83792D_REG_POINTS[i][j]) & 0x7f;
1562 }
1563 }
1564
1565 /* Update Smart Fan II duty cycle levels */
1566 for (i = 0; i < 3; i++) {
1567 reg_tmp = w83792d_read_value(client,
1568 W83792D_REG_LEVELS[i][0]);
1569 data->sf2_levels[i][0] = reg_tmp & 0x0f;
1570 data->sf2_levels[i][1] = (reg_tmp >> 4) & 0x0f;
1571 reg_tmp = w83792d_read_value(client,
1572 W83792D_REG_LEVELS[i][2]);
1573 data->sf2_levels[i][2] = (reg_tmp >> 4) & 0x0f;
1574 data->sf2_levels[i][3] = reg_tmp & 0x0f;
1575 }
1576
1577 data->last_updated = jiffies;
1578 data->valid = 1;
1579 }
1580
1581 mutex_unlock(&data->update_lock);
1582
1583 #ifdef DEBUG
1584 w83792d_print_debug(data, dev);
1585 #endif
1586
1587 return data;
1588 }
1589
1590 #ifdef DEBUG
1591 static void w83792d_print_debug(struct w83792d_data *data, struct device *dev)
1592 {
1593 int i=0, j=0;
1594 dev_dbg(dev, "==========The following is the debug message...========\n");
1595 dev_dbg(dev, "9 set of Voltages: =====>\n");
1596 for (i=0; i<9; i++) {
1597 dev_dbg(dev, "vin[%d] is: 0x%x\n", i, data->in[i]);
1598 dev_dbg(dev, "vin[%d] max is: 0x%x\n", i, data->in_max[i]);
1599 dev_dbg(dev, "vin[%d] min is: 0x%x\n", i, data->in_min[i]);
1600 }
1601 dev_dbg(dev, "Low Bit1 is: 0x%x\n", data->low_bits & 0xff);
1602 dev_dbg(dev, "Low Bit2 is: 0x%x\n", data->low_bits >> 8);
1603 dev_dbg(dev, "7 set of Fan Counts and Duty Cycles: =====>\n");
1604 for (i=0; i<7; i++) {
1605 dev_dbg(dev, "fan[%d] is: 0x%x\n", i, data->fan[i]);
1606 dev_dbg(dev, "fan[%d] min is: 0x%x\n", i, data->fan_min[i]);
1607 dev_dbg(dev, "pwm[%d] is: 0x%x\n", i, data->pwm[i]);
1608 }
1609 dev_dbg(dev, "3 set of Temperatures: =====>\n");
1610 for (i=0; i<3; i++) {
1611 dev_dbg(dev, "temp1[%d] is: 0x%x\n", i, data->temp1[i]);
1612 }
1613
1614 for (i=0; i<2; i++) {
1615 for (j=0; j<6; j++) {
1616 dev_dbg(dev, "temp_add[%d][%d] is: 0x%x\n", i, j,
1617 data->temp_add[i][j]);
1618 }
1619 }
1620
1621 for (i=0; i<7; i++) {
1622 dev_dbg(dev, "fan_div[%d] is: 0x%x\n", i, data->fan_div[i]);
1623 }
1624 dev_dbg(dev, "==========End of the debug message...==================\n");
1625 dev_dbg(dev, "\n");
1626 }
1627 #endif
1628
1629 static int __init
1630 sensors_w83792d_init(void)
1631 {
1632 return i2c_add_driver(&w83792d_driver);
1633 }
1634
1635 static void __exit
1636 sensors_w83792d_exit(void)
1637 {
1638 i2c_del_driver(&w83792d_driver);
1639 }
1640
1641 MODULE_AUTHOR("Chunhao Huang @ Winbond <DZShen@Winbond.com.tw>");
1642 MODULE_DESCRIPTION("W83792AD/D driver for linux-2.6");
1643 MODULE_LICENSE("GPL");
1644
1645 module_init(sensors_w83792d_init);
1646 module_exit(sensors_w83792d_exit);
1647
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