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blocK: Restore barrier support for md and probably other virtual devices.
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / hwmon / w83792d.c
blob2be16194ddf3a980674ea91f111c4437a9890e5b
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
55 static unsigned short force_subclients[4];
56 module_param_array(force_subclients, short, NULL, 0);
57 MODULE_PARM_DESC(force_subclients, "List of subclient addresses: "
58 "{bus, clientaddr, subclientaddr1, subclientaddr2}");
59
60 static int init;
61 module_param(init, bool, 0);
62 MODULE_PARM_DESC(init, "Set to one to force chip initialization");
63
64 /* The W83792D registers */
65 static const u8 W83792D_REG_IN[9] = {
66 0x20, /* Vcore A in DataSheet */
67 0x21, /* Vcore B in DataSheet */
68 0x22, /* VIN0 in DataSheet */
69 0x23, /* VIN1 in DataSheet */
70 0x24, /* VIN2 in DataSheet */
71 0x25, /* VIN3 in DataSheet */
72 0x26, /* 5VCC in DataSheet */
73 0xB0, /* 5VSB in DataSheet */
74 0xB1 /* VBAT in DataSheet */
75 };
76 #define W83792D_REG_LOW_BITS1 0x3E /* Low Bits I in DataSheet */
77 #define W83792D_REG_LOW_BITS2 0x3F /* Low Bits II in DataSheet */
78 static const u8 W83792D_REG_IN_MAX[9] = {
79 0x2B, /* Vcore A High Limit in DataSheet */
80 0x2D, /* Vcore B High Limit in DataSheet */
81 0x2F, /* VIN0 High Limit in DataSheet */
82 0x31, /* VIN1 High Limit in DataSheet */
83 0x33, /* VIN2 High Limit in DataSheet */
84 0x35, /* VIN3 High Limit in DataSheet */
85 0x37, /* 5VCC High Limit in DataSheet */
86 0xB4, /* 5VSB High Limit in DataSheet */
87 0xB6 /* VBAT High Limit in DataSheet */
88 };
89 static const u8 W83792D_REG_IN_MIN[9] = {
90 0x2C, /* Vcore A Low Limit in DataSheet */
91 0x2E, /* Vcore B Low Limit in DataSheet */
92 0x30, /* VIN0 Low Limit in DataSheet */
93 0x32, /* VIN1 Low Limit in DataSheet */
94 0x34, /* VIN2 Low Limit in DataSheet */
95 0x36, /* VIN3 Low Limit in DataSheet */
96 0x38, /* 5VCC Low Limit in DataSheet */
97 0xB5, /* 5VSB Low Limit in DataSheet */
98 0xB7 /* VBAT Low Limit in DataSheet */
99 };
100 static const u8 W83792D_REG_FAN[7] = {
101 0x28, /* FAN 1 Count in DataSheet */
102 0x29, /* FAN 2 Count in DataSheet */
103 0x2A, /* FAN 3 Count in DataSheet */
104 0xB8, /* FAN 4 Count in DataSheet */
105 0xB9, /* FAN 5 Count in DataSheet */
106 0xBA, /* FAN 6 Count in DataSheet */
107 0xBE /* FAN 7 Count in DataSheet */
108 };
109 static const u8 W83792D_REG_FAN_MIN[7] = {
110 0x3B, /* FAN 1 Count Low Limit in DataSheet */
111 0x3C, /* FAN 2 Count Low Limit in DataSheet */
112 0x3D, /* FAN 3 Count Low Limit in DataSheet */
113 0xBB, /* FAN 4 Count Low Limit in DataSheet */
114 0xBC, /* FAN 5 Count Low Limit in DataSheet */
115 0xBD, /* FAN 6 Count Low Limit in DataSheet */
116 0xBF /* FAN 7 Count Low Limit in DataSheet */
117 };
118 #define W83792D_REG_FAN_CFG 0x84 /* FAN Configuration in DataSheet */
119 static const u8 W83792D_REG_FAN_DIV[4] = {
120 0x47, /* contains FAN2 and FAN1 Divisor */
121 0x5B, /* contains FAN4 and FAN3 Divisor */
122 0x5C, /* contains FAN6 and FAN5 Divisor */
123 0x9E /* contains FAN7 Divisor. */
124 };
125 static const u8 W83792D_REG_PWM[7] = {
126 0x81, /* FAN 1 Duty Cycle, be used to control */
127 0x83, /* FAN 2 Duty Cycle, be used to control */
128 0x94, /* FAN 3 Duty Cycle, be used to control */
129 0xA3, /* FAN 4 Duty Cycle, be used to control */
130 0xA4, /* FAN 5 Duty Cycle, be used to control */
131 0xA5, /* FAN 6 Duty Cycle, be used to control */
132 0xA6 /* FAN 7 Duty Cycle, be used to control */
133 };
134 #define W83792D_REG_BANK 0x4E
135 #define W83792D_REG_TEMP2_CONFIG 0xC2
136 #define W83792D_REG_TEMP3_CONFIG 0xCA
137
138 static const u8 W83792D_REG_TEMP1[3] = {
139 0x27, /* TEMP 1 in DataSheet */
140 0x39, /* TEMP 1 Over in DataSheet */
141 0x3A, /* TEMP 1 Hyst in DataSheet */
142 };
143
144 static const u8 W83792D_REG_TEMP_ADD[2][6] = {
145 { 0xC0, /* TEMP 2 in DataSheet */
146 0xC1, /* TEMP 2(0.5 deg) in DataSheet */
147 0xC5, /* TEMP 2 Over High part in DataSheet */
148 0xC6, /* TEMP 2 Over Low part in DataSheet */
149 0xC3, /* TEMP 2 Thyst High part in DataSheet */
150 0xC4 }, /* TEMP 2 Thyst Low part in DataSheet */
151 { 0xC8, /* TEMP 3 in DataSheet */
152 0xC9, /* TEMP 3(0.5 deg) in DataSheet */
153 0xCD, /* TEMP 3 Over High part in DataSheet */
154 0xCE, /* TEMP 3 Over Low part in DataSheet */
155 0xCB, /* TEMP 3 Thyst High part in DataSheet */
156 0xCC } /* TEMP 3 Thyst Low part in DataSheet */
157 };
158
159 static const u8 W83792D_REG_THERMAL[3] = {
160 0x85, /* SmartFanI: Fan1 target value */
161 0x86, /* SmartFanI: Fan2 target value */
162 0x96 /* SmartFanI: Fan3 target value */
163 };
164
165 static const u8 W83792D_REG_TOLERANCE[3] = {
166 0x87, /* (bit3-0)SmartFan Fan1 tolerance */
167 0x87, /* (bit7-4)SmartFan Fan2 tolerance */
168 0x97 /* (bit3-0)SmartFan Fan3 tolerance */
169 };
170
171 static const u8 W83792D_REG_POINTS[3][4] = {
172 { 0x85, /* SmartFanII: Fan1 temp point 1 */
173 0xE3, /* SmartFanII: Fan1 temp point 2 */
174 0xE4, /* SmartFanII: Fan1 temp point 3 */
175 0xE5 }, /* SmartFanII: Fan1 temp point 4 */
176 { 0x86, /* SmartFanII: Fan2 temp point 1 */
177 0xE6, /* SmartFanII: Fan2 temp point 2 */
178 0xE7, /* SmartFanII: Fan2 temp point 3 */
179 0xE8 }, /* SmartFanII: Fan2 temp point 4 */
180 { 0x96, /* SmartFanII: Fan3 temp point 1 */
181 0xE9, /* SmartFanII: Fan3 temp point 2 */
182 0xEA, /* SmartFanII: Fan3 temp point 3 */
183 0xEB } /* SmartFanII: Fan3 temp point 4 */
184 };
185
186 static const u8 W83792D_REG_LEVELS[3][4] = {
187 { 0x88, /* (bit3-0) SmartFanII: Fan1 Non-Stop */
188 0x88, /* (bit7-4) SmartFanII: Fan1 Level 1 */
189 0xE0, /* (bit7-4) SmartFanII: Fan1 Level 2 */
190 0xE0 }, /* (bit3-0) SmartFanII: Fan1 Level 3 */
191 { 0x89, /* (bit3-0) SmartFanII: Fan2 Non-Stop */
192 0x89, /* (bit7-4) SmartFanII: Fan2 Level 1 */
193 0xE1, /* (bit7-4) SmartFanII: Fan2 Level 2 */
194 0xE1 }, /* (bit3-0) SmartFanII: Fan2 Level 3 */
195 { 0x98, /* (bit3-0) SmartFanII: Fan3 Non-Stop */
196 0x98, /* (bit7-4) SmartFanII: Fan3 Level 1 */
197 0xE2, /* (bit7-4) SmartFanII: Fan3 Level 2 */
198 0xE2 } /* (bit3-0) SmartFanII: Fan3 Level 3 */
199 };
200
201 #define W83792D_REG_GPIO_EN 0x1A
202 #define W83792D_REG_CONFIG 0x40
203 #define W83792D_REG_VID_FANDIV 0x47
204 #define W83792D_REG_CHIPID 0x49
205 #define W83792D_REG_WCHIPID 0x58
206 #define W83792D_REG_CHIPMAN 0x4F
207 #define W83792D_REG_PIN 0x4B
208 #define W83792D_REG_I2C_SUBADDR 0x4A
209
210 #define W83792D_REG_ALARM1 0xA9 /* realtime status register1 */
211 #define W83792D_REG_ALARM2 0xAA /* realtime status register2 */
212 #define W83792D_REG_ALARM3 0xAB /* realtime status register3 */
213 #define W83792D_REG_CHASSIS 0x42 /* Bit 5: Case Open status bit */
214 #define W83792D_REG_CHASSIS_CLR 0x44 /* Bit 7: Case Open CLR_CHS/Reset bit */
215
216 /* control in0/in1 's limit modifiability */
217 #define W83792D_REG_VID_IN_B 0x17
218
219 #define W83792D_REG_VBAT 0x5D
220 #define W83792D_REG_I2C_ADDR 0x48
221
222 /* Conversions. Rounding and limit checking is only done on the TO_REG
223 variants. Note that you should be a bit careful with which arguments
224 these macros are called: arguments may be evaluated more than once.
225 Fixing this is just not worth it. */
226 #define IN_FROM_REG(nr,val) (((nr)<=1)?(val*2): \
227 ((((nr)==6)||((nr)==7))?(val*6):(val*4)))
228 #define IN_TO_REG(nr,val) (((nr)<=1)?(val/2): \
229 ((((nr)==6)||((nr)==7))?(val/6):(val/4)))
230
231 static inline u8
232 FAN_TO_REG(long rpm, int div)
233 {
234 if (rpm == 0)
235 return 255;
236 rpm = SENSORS_LIMIT(rpm, 1, 1000000);
237 return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 254);
238 }
239
240 #define FAN_FROM_REG(val,div) ((val) == 0 ? -1 : \
241 ((val) == 255 ? 0 : \
242 1350000 / ((val) * (div))))
243
244 /* for temp1 */
245 #define TEMP1_TO_REG(val) (SENSORS_LIMIT(((val) < 0 ? (val)+0x100*1000 \
246 : (val)) / 1000, 0, 0xff))
247 #define TEMP1_FROM_REG(val) (((val) & 0x80 ? (val)-0x100 : (val)) * 1000)
248 /* for temp2 and temp3, because they need addtional resolution */
249 #define TEMP_ADD_FROM_REG(val1, val2) \
250 ((((val1) & 0x80 ? (val1)-0x100 \
251 : (val1)) * 1000) + ((val2 & 0x80) ? 500 : 0))
252 #define TEMP_ADD_TO_REG_HIGH(val) \
253 (SENSORS_LIMIT(((val) < 0 ? (val)+0x100*1000 \
254 : (val)) / 1000, 0, 0xff))
255 #define TEMP_ADD_TO_REG_LOW(val) ((val%1000) ? 0x80 : 0x00)
256
257 #define DIV_FROM_REG(val) (1 << (val))
258
259 static inline u8
260 DIV_TO_REG(long val)
261 {
262 int i;
263 val = SENSORS_LIMIT(val, 1, 128) >> 1;
264 for (i = 0; i < 7; i++) {
265 if (val == 0)
266 break;
267 val >>= 1;
268 }
269 return ((u8) i);
270 }
271
272 struct w83792d_data {
273 struct device *hwmon_dev;
274
275 struct mutex update_lock;
276 char valid; /* !=0 if following fields are valid */
277 unsigned long last_updated; /* In jiffies */
278
279 /* array of 2 pointers to subclients */
280 struct i2c_client *lm75[2];
281
282 u8 in[9]; /* Register value */
283 u8 in_max[9]; /* Register value */
284 u8 in_min[9]; /* Register value */
285 u16 low_bits; /* Additional resolution to voltage in6-0 */
286 u8 fan[7]; /* Register value */
287 u8 fan_min[7]; /* Register value */
288 u8 temp1[3]; /* current, over, thyst */
289 u8 temp_add[2][6]; /* Register value */
290 u8 fan_div[7]; /* Register encoding, shifted right */
291 u8 pwm[7]; /* We only consider the first 3 set of pwm,
292 although 792 chip has 7 set of pwm. */
293 u8 pwmenable[3];
294 u32 alarms; /* realtime status register encoding,combined */
295 u8 chassis; /* Chassis status */
296 u8 chassis_clear; /* CLR_CHS, clear chassis intrusion detection */
297 u8 thermal_cruise[3]; /* Smart FanI: Fan1,2,3 target value */
298 u8 tolerance[3]; /* Fan1,2,3 tolerance(Smart Fan I/II) */
299 u8 sf2_points[3][4]; /* Smart FanII: Fan1,2,3 temperature points */
300 u8 sf2_levels[3][4]; /* Smart FanII: Fan1,2,3 duty cycle levels */
301 };
302
303 static int w83792d_probe(struct i2c_client *client,
304 const struct i2c_device_id *id);
305 static int w83792d_detect(struct i2c_client *client, int kind,
306 struct i2c_board_info *info);
307 static int w83792d_remove(struct i2c_client *client);
308 static struct w83792d_data *w83792d_update_device(struct device *dev);
309
310 #ifdef DEBUG
311 static void w83792d_print_debug(struct w83792d_data *data, struct device *dev);
312 #endif
313
314 static void w83792d_init_client(struct i2c_client *client);
315
316 static const struct i2c_device_id w83792d_id[] = {
317 { "w83792d", w83792d },
318 { }
319 };
320 MODULE_DEVICE_TABLE(i2c, w83792d_id);
321
322 static struct i2c_driver w83792d_driver = {
323 .class = I2C_CLASS_HWMON,
324 .driver = {
325 .name = "w83792d",
326 },
327 .probe = w83792d_probe,
328 .remove = w83792d_remove,
329 .id_table = w83792d_id,
330 .detect = w83792d_detect,
331 .address_data = &addr_data,
332 };
333
334 static inline long in_count_from_reg(int nr, struct w83792d_data *data)
335 {
336 /* in7 and in8 do not have low bits, but the formula still works */
337 return ((data->in[nr] << 2) | ((data->low_bits >> (2 * nr)) & 0x03));
338 }
339
340 /* The SMBus locks itself. The Winbond W83792D chip has a bank register,
341 but the driver only accesses registers in bank 0, so we don't have
342 to switch banks and lock access between switches. */
343 static inline int w83792d_read_value(struct i2c_client *client, u8 reg)
344 {
345 return i2c_smbus_read_byte_data(client, reg);
346 }
347
348 static inline int
349 w83792d_write_value(struct i2c_client *client, u8 reg, u8 value)
350 {
351 return i2c_smbus_write_byte_data(client, reg, value);
352 }
353
354 /* following are the sysfs callback functions */
355 static ssize_t show_in(struct device *dev, struct device_attribute *attr,
356 char *buf)
357 {
358 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
359 int nr = sensor_attr->index;
360 struct w83792d_data *data = w83792d_update_device(dev);
361 return sprintf(buf,"%ld\n", IN_FROM_REG(nr,(in_count_from_reg(nr, data))));
362 }
363
364 #define show_in_reg(reg) \
365 static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
366 char *buf) \
367 { \
368 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
369 int nr = sensor_attr->index; \
370 struct w83792d_data *data = w83792d_update_device(dev); \
371 return sprintf(buf,"%ld\n", (long)(IN_FROM_REG(nr, (data->reg[nr])*4))); \
372 }
373
374 show_in_reg(in_min);
375 show_in_reg(in_max);
376
377 #define store_in_reg(REG, reg) \
378 static ssize_t store_in_##reg (struct device *dev, \
379 struct device_attribute *attr, \
380 const char *buf, size_t count) \
381 { \
382 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
383 int nr = sensor_attr->index; \
384 struct i2c_client *client = to_i2c_client(dev); \
385 struct w83792d_data *data = i2c_get_clientdata(client); \
386 u32 val; \
387 \
388 val = simple_strtoul(buf, NULL, 10); \
389 mutex_lock(&data->update_lock); \
390 data->in_##reg[nr] = SENSORS_LIMIT(IN_TO_REG(nr, val)/4, 0, 255); \
391 w83792d_write_value(client, W83792D_REG_IN_##REG[nr], data->in_##reg[nr]); \
392 mutex_unlock(&data->update_lock); \
393 \
394 return count; \
395 }
396 store_in_reg(MIN, min);
397 store_in_reg(MAX, max);
398
399 #define show_fan_reg(reg) \
400 static ssize_t show_##reg (struct device *dev, struct device_attribute *attr, \
401 char *buf) \
402 { \
403 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
404 int nr = sensor_attr->index - 1; \
405 struct w83792d_data *data = w83792d_update_device(dev); \
406 return sprintf(buf,"%d\n", \
407 FAN_FROM_REG(data->reg[nr], DIV_FROM_REG(data->fan_div[nr]))); \
408 }
409
410 show_fan_reg(fan);
411 show_fan_reg(fan_min);
412
413 static ssize_t
414 store_fan_min(struct device *dev, struct device_attribute *attr,
415 const char *buf, size_t count)
416 {
417 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
418 int nr = sensor_attr->index - 1;
419 struct i2c_client *client = to_i2c_client(dev);
420 struct w83792d_data *data = i2c_get_clientdata(client);
421 u32 val;
422
423 val = simple_strtoul(buf, NULL, 10);
424 mutex_lock(&data->update_lock);
425 data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
426 w83792d_write_value(client, W83792D_REG_FAN_MIN[nr],
427 data->fan_min[nr]);
428 mutex_unlock(&data->update_lock);
429
430 return count;
431 }
432
433 static ssize_t
434 show_fan_div(struct device *dev, struct device_attribute *attr,
435 char *buf)
436 {
437 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
438 int nr = sensor_attr->index;
439 struct w83792d_data *data = w83792d_update_device(dev);
440 return sprintf(buf, "%u\n", DIV_FROM_REG(data->fan_div[nr - 1]));
441 }
442
443 /* Note: we save and restore the fan minimum here, because its value is
444 determined in part by the fan divisor. This follows the principle of
445 least surprise; the user doesn't expect the fan minimum to change just
446 because the divisor changed. */
447 static ssize_t
448 store_fan_div(struct device *dev, struct device_attribute *attr,
449 const char *buf, size_t count)
450 {
451 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
452 int nr = sensor_attr->index - 1;
453 struct i2c_client *client = to_i2c_client(dev);
454 struct w83792d_data *data = i2c_get_clientdata(client);
455 unsigned long min;
456 /*u8 reg;*/
457 u8 fan_div_reg = 0;
458 u8 tmp_fan_div;
459
460 /* Save fan_min */
461 mutex_lock(&data->update_lock);
462 min = FAN_FROM_REG(data->fan_min[nr],
463 DIV_FROM_REG(data->fan_div[nr]));
464
465 data->fan_div[nr] = DIV_TO_REG(simple_strtoul(buf, NULL, 10));
466
467 fan_div_reg = w83792d_read_value(client, W83792D_REG_FAN_DIV[nr >> 1]);
468 fan_div_reg &= (nr & 0x01) ? 0x8f : 0xf8;
469 tmp_fan_div = (nr & 0x01) ? (((data->fan_div[nr]) << 4) & 0x70)
470 : ((data->fan_div[nr]) & 0x07);
471 w83792d_write_value(client, W83792D_REG_FAN_DIV[nr >> 1],
472 fan_div_reg | tmp_fan_div);
473
474 /* Restore fan_min */
475 data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
476 w83792d_write_value(client, W83792D_REG_FAN_MIN[nr], data->fan_min[nr]);
477 mutex_unlock(&data->update_lock);
478
479 return count;
480 }
481
482 /* read/write the temperature1, includes measured value and limits */
483
484 static ssize_t show_temp1(struct device *dev, struct device_attribute *attr,
485 char *buf)
486 {
487 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
488 int nr = sensor_attr->index;
489 struct w83792d_data *data = w83792d_update_device(dev);
490 return sprintf(buf, "%d\n", TEMP1_FROM_REG(data->temp1[nr]));
491 }
492
493 static ssize_t store_temp1(struct device *dev, struct device_attribute *attr,
494 const char *buf, size_t count)
495 {
496 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
497 int nr = sensor_attr->index;
498 struct i2c_client *client = to_i2c_client(dev);
499 struct w83792d_data *data = i2c_get_clientdata(client);
500 s32 val;
501
502 val = simple_strtol(buf, NULL, 10);
503 mutex_lock(&data->update_lock);
504 data->temp1[nr] = TEMP1_TO_REG(val);
505 w83792d_write_value(client, W83792D_REG_TEMP1[nr],
506 data->temp1[nr]);
507 mutex_unlock(&data->update_lock);
508
509 return count;
510 }
511
512 /* read/write the temperature2-3, includes measured value and limits */
513
514 static ssize_t show_temp23(struct device *dev, struct device_attribute *attr,
515 char *buf)
516 {
517 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
518 int nr = sensor_attr->nr;
519 int index = sensor_attr->index;
520 struct w83792d_data *data = w83792d_update_device(dev);
521 return sprintf(buf,"%ld\n",
522 (long)TEMP_ADD_FROM_REG(data->temp_add[nr][index],
523 data->temp_add[nr][index+1]));
524 }
525
526 static ssize_t store_temp23(struct device *dev, struct device_attribute *attr,
527 const char *buf, size_t count)
528 {
529 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
530 int nr = sensor_attr->nr;
531 int index = sensor_attr->index;
532 struct i2c_client *client = to_i2c_client(dev);
533 struct w83792d_data *data = i2c_get_clientdata(client);
534 s32 val;
535
536 val = simple_strtol(buf, NULL, 10);
537 mutex_lock(&data->update_lock);
538 data->temp_add[nr][index] = TEMP_ADD_TO_REG_HIGH(val);
539 data->temp_add[nr][index+1] = TEMP_ADD_TO_REG_LOW(val);
540 w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index],
541 data->temp_add[nr][index]);
542 w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index+1],
543 data->temp_add[nr][index+1]);
544 mutex_unlock(&data->update_lock);
545
546 return count;
547 }
548
549 /* get reatime status of all sensors items: voltage, temp, fan */
550 static ssize_t
551 show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf)
552 {
553 struct w83792d_data *data = w83792d_update_device(dev);
554 return sprintf(buf, "%d\n", data->alarms);
555 }
556
557 static ssize_t show_alarm(struct device *dev,
558 struct device_attribute *attr, char *buf)
559 {
560 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
561 int nr = sensor_attr->index;
562 struct w83792d_data *data = w83792d_update_device(dev);
563 return sprintf(buf, "%d\n", (data->alarms >> nr) & 1);
564 }
565
566 static ssize_t
567 show_pwm(struct device *dev, struct device_attribute *attr,
568 char *buf)
569 {
570 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
571 int nr = sensor_attr->index;
572 struct w83792d_data *data = w83792d_update_device(dev);
573 return sprintf(buf, "%d\n", (data->pwm[nr] & 0x0f) << 4);
574 }
575
576 static ssize_t
577 show_pwmenable(struct device *dev, struct device_attribute *attr,
578 char *buf)
579 {
580 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
581 int nr = sensor_attr->index - 1;
582 struct w83792d_data *data = w83792d_update_device(dev);
583 long pwm_enable_tmp = 1;
584
585 switch (data->pwmenable[nr]) {
586 case 0:
587 pwm_enable_tmp = 1; /* manual mode */
588 break;
589 case 1:
590 pwm_enable_tmp = 3; /*thermal cruise/Smart Fan I */
591 break;
592 case 2:
593 pwm_enable_tmp = 2; /* Smart Fan II */
594 break;
595 }
596
597 return sprintf(buf, "%ld\n", pwm_enable_tmp);
598 }
599
600 static ssize_t
601 store_pwm(struct device *dev, struct device_attribute *attr,
602 const char *buf, size_t count)
603 {
604 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
605 int nr = sensor_attr->index;
606 struct i2c_client *client = to_i2c_client(dev);
607 struct w83792d_data *data = i2c_get_clientdata(client);
608 u8 val = SENSORS_LIMIT(simple_strtoul(buf, NULL, 10), 0, 255) >> 4;
609
610 mutex_lock(&data->update_lock);
611 val |= w83792d_read_value(client, W83792D_REG_PWM[nr]) & 0xf0;
612 data->pwm[nr] = val;
613 w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]);
614 mutex_unlock(&data->update_lock);
615
616 return count;
617 }
618
619 static ssize_t
620 store_pwmenable(struct device *dev, struct device_attribute *attr,
621 const char *buf, size_t count)
622 {
623 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
624 int nr = sensor_attr->index - 1;
625 struct i2c_client *client = to_i2c_client(dev);
626 struct w83792d_data *data = i2c_get_clientdata(client);
627 u32 val;
628 u8 fan_cfg_tmp, cfg1_tmp, cfg2_tmp, cfg3_tmp, cfg4_tmp;
629
630 val = simple_strtoul(buf, NULL, 10);
631 if (val < 1 || val > 3)
632 return -EINVAL;
633
634 mutex_lock(&data->update_lock);
635 switch (val) {
636 case 1:
637 data->pwmenable[nr] = 0; /* manual mode */
638 break;
639 case 2:
640 data->pwmenable[nr] = 2; /* Smart Fan II */
641 break;
642 case 3:
643 data->pwmenable[nr] = 1; /* thermal cruise/Smart Fan I */
644 break;
645 }
646 cfg1_tmp = data->pwmenable[0];
647 cfg2_tmp = (data->pwmenable[1]) << 2;
648 cfg3_tmp = (data->pwmenable[2]) << 4;
649 cfg4_tmp = w83792d_read_value(client,W83792D_REG_FAN_CFG) & 0xc0;
650 fan_cfg_tmp = ((cfg4_tmp | cfg3_tmp) | cfg2_tmp) | cfg1_tmp;
651 w83792d_write_value(client, W83792D_REG_FAN_CFG, fan_cfg_tmp);
652 mutex_unlock(&data->update_lock);
653
654 return count;
655 }
656
657 static ssize_t
658 show_pwm_mode(struct device *dev, struct device_attribute *attr,
659 char *buf)
660 {
661 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
662 int nr = sensor_attr->index;
663 struct w83792d_data *data = w83792d_update_device(dev);
664 return sprintf(buf, "%d\n", data->pwm[nr] >> 7);
665 }
666
667 static ssize_t
668 store_pwm_mode(struct device *dev, struct device_attribute *attr,
669 const char *buf, size_t count)
670 {
671 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
672 int nr = sensor_attr->index;
673 struct i2c_client *client = to_i2c_client(dev);
674 struct w83792d_data *data = i2c_get_clientdata(client);
675 u32 val;
676
677 val = simple_strtoul(buf, NULL, 10);
678 if (val != 0 && val != 1)
679 return -EINVAL;
680
681 mutex_lock(&data->update_lock);
682 data->pwm[nr] = w83792d_read_value(client, W83792D_REG_PWM[nr]);
683 if (val) { /* PWM mode */
684 data->pwm[nr] |= 0x80;
685 } else { /* DC mode */
686 data->pwm[nr] &= 0x7f;
687 }
688 w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]);
689 mutex_unlock(&data->update_lock);
690
691 return count;
692 }
693
694 static ssize_t
695 show_regs_chassis(struct device *dev, struct device_attribute *attr,
696 char *buf)
697 {
698 struct w83792d_data *data = w83792d_update_device(dev);
699 return sprintf(buf, "%d\n", data->chassis);
700 }
701
702 static ssize_t
703 show_chassis_clear(struct device *dev, struct device_attribute *attr, char *buf)
704 {
705 struct w83792d_data *data = w83792d_update_device(dev);
706 return sprintf(buf, "%d\n", data->chassis_clear);
707 }
708
709 static ssize_t
710 store_chassis_clear(struct device *dev, struct device_attribute *attr,
711 const char *buf, size_t count)
712 {
713 struct i2c_client *client = to_i2c_client(dev);
714 struct w83792d_data *data = i2c_get_clientdata(client);
715 u32 val;
716 u8 temp1 = 0, temp2 = 0;
717
718 val = simple_strtoul(buf, NULL, 10);
719 mutex_lock(&data->update_lock);
720 data->chassis_clear = SENSORS_LIMIT(val, 0 ,1);
721 temp1 = ((data->chassis_clear) << 7) & 0x80;
722 temp2 = w83792d_read_value(client,
723 W83792D_REG_CHASSIS_CLR) & 0x7f;
724 w83792d_write_value(client, W83792D_REG_CHASSIS_CLR, temp1 | temp2);
725 mutex_unlock(&data->update_lock);
726
727 return count;
728 }
729
730 /* For Smart Fan I / Thermal Cruise */
731 static ssize_t
732 show_thermal_cruise(struct device *dev, struct device_attribute *attr,
733 char *buf)
734 {
735 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
736 int nr = sensor_attr->index;
737 struct w83792d_data *data = w83792d_update_device(dev);
738 return sprintf(buf, "%ld\n", (long)data->thermal_cruise[nr-1]);
739 }
740
741 static ssize_t
742 store_thermal_cruise(struct device *dev, struct device_attribute *attr,
743 const char *buf, size_t count)
744 {
745 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
746 int nr = sensor_attr->index - 1;
747 struct i2c_client *client = to_i2c_client(dev);
748 struct w83792d_data *data = i2c_get_clientdata(client);
749 u32 val;
750 u8 target_tmp=0, target_mask=0;
751
752 val = simple_strtoul(buf, NULL, 10);
753 target_tmp = val;
754 target_tmp = target_tmp & 0x7f;
755 mutex_lock(&data->update_lock);
756 target_mask = w83792d_read_value(client, W83792D_REG_THERMAL[nr]) & 0x80;
757 data->thermal_cruise[nr] = SENSORS_LIMIT(target_tmp, 0, 255);
758 w83792d_write_value(client, W83792D_REG_THERMAL[nr],
759 (data->thermal_cruise[nr]) | target_mask);
760 mutex_unlock(&data->update_lock);
761
762 return count;
763 }
764
765 /* For Smart Fan I/Thermal Cruise and Smart Fan II */
766 static ssize_t
767 show_tolerance(struct device *dev, struct device_attribute *attr,
768 char *buf)
769 {
770 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
771 int nr = sensor_attr->index;
772 struct w83792d_data *data = w83792d_update_device(dev);
773 return sprintf(buf, "%ld\n", (long)data->tolerance[nr-1]);
774 }
775
776 static ssize_t
777 store_tolerance(struct device *dev, struct device_attribute *attr,
778 const char *buf, size_t count)
779 {
780 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
781 int nr = sensor_attr->index - 1;
782 struct i2c_client *client = to_i2c_client(dev);
783 struct w83792d_data *data = i2c_get_clientdata(client);
784 u32 val;
785 u8 tol_tmp, tol_mask;
786
787 val = simple_strtoul(buf, NULL, 10);
788 mutex_lock(&data->update_lock);
789 tol_mask = w83792d_read_value(client,
790 W83792D_REG_TOLERANCE[nr]) & ((nr == 1) ? 0x0f : 0xf0);
791 tol_tmp = SENSORS_LIMIT(val, 0, 15);
792 tol_tmp &= 0x0f;
793 data->tolerance[nr] = tol_tmp;
794 if (nr == 1) {
795 tol_tmp <<= 4;
796 }
797 w83792d_write_value(client, W83792D_REG_TOLERANCE[nr],
798 tol_mask | tol_tmp);
799 mutex_unlock(&data->update_lock);
800
801 return count;
802 }
803
804 /* For Smart Fan II */
805 static ssize_t
806 show_sf2_point(struct device *dev, struct device_attribute *attr,
807 char *buf)
808 {
809 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
810 int nr = sensor_attr->nr;
811 int index = sensor_attr->index;
812 struct w83792d_data *data = w83792d_update_device(dev);
813 return sprintf(buf, "%ld\n", (long)data->sf2_points[index-1][nr-1]);
814 }
815
816 static ssize_t
817 store_sf2_point(struct device *dev, struct device_attribute *attr,
818 const char *buf, size_t count)
819 {
820 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
821 int nr = sensor_attr->nr - 1;
822 int index = sensor_attr->index - 1;
823 struct i2c_client *client = to_i2c_client(dev);
824 struct w83792d_data *data = i2c_get_clientdata(client);
825 u32 val;
826 u8 mask_tmp = 0;
827
828 val = simple_strtoul(buf, NULL, 10);
829 mutex_lock(&data->update_lock);
830 data->sf2_points[index][nr] = SENSORS_LIMIT(val, 0, 127);
831 mask_tmp = w83792d_read_value(client,
832 W83792D_REG_POINTS[index][nr]) & 0x80;
833 w83792d_write_value(client, W83792D_REG_POINTS[index][nr],
834 mask_tmp|data->sf2_points[index][nr]);
835 mutex_unlock(&data->update_lock);
836
837 return count;
838 }
839
840 static ssize_t
841 show_sf2_level(struct device *dev, struct device_attribute *attr,
842 char *buf)
843 {
844 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
845 int nr = sensor_attr->nr;
846 int index = sensor_attr->index;
847 struct w83792d_data *data = w83792d_update_device(dev);
848 return sprintf(buf, "%d\n",
849 (((data->sf2_levels[index-1][nr]) * 100) / 15));
850 }
851
852 static ssize_t
853 store_sf2_level(struct device *dev, struct device_attribute *attr,
854 const char *buf, size_t count)
855 {
856 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
857 int nr = sensor_attr->nr;
858 int index = sensor_attr->index - 1;
859 struct i2c_client *client = to_i2c_client(dev);
860 struct w83792d_data *data = i2c_get_clientdata(client);
861 u32 val;
862 u8 mask_tmp=0, level_tmp=0;
863
864 val = simple_strtoul(buf, NULL, 10);
865 mutex_lock(&data->update_lock);
866 data->sf2_levels[index][nr] = SENSORS_LIMIT((val * 15) / 100, 0, 15);
867 mask_tmp = w83792d_read_value(client, W83792D_REG_LEVELS[index][nr])
868 & ((nr==3) ? 0xf0 : 0x0f);
869 if (nr==3) {
870 level_tmp = data->sf2_levels[index][nr];
871 } else {
872 level_tmp = data->sf2_levels[index][nr] << 4;
873 }
874 w83792d_write_value(client, W83792D_REG_LEVELS[index][nr], level_tmp | mask_tmp);
875 mutex_unlock(&data->update_lock);
876
877 return count;
878 }
879
880
881 static int
882 w83792d_detect_subclients(struct i2c_client *new_client)
883 {
884 int i, id, err;
885 int address = new_client->addr;
886 u8 val;
887 struct i2c_adapter *adapter = new_client->adapter;
888 struct w83792d_data *data = i2c_get_clientdata(new_client);
889
890 id = i2c_adapter_id(adapter);
891 if (force_subclients[0] == id && force_subclients[1] == address) {
892 for (i = 2; i <= 3; i++) {
893 if (force_subclients[i] < 0x48 ||
894 force_subclients[i] > 0x4f) {
895 dev_err(&new_client->dev, "invalid subclient "
896 "address %d; must be 0x48-0x4f\n",
897 force_subclients[i]);
898 err = -ENODEV;
899 goto ERROR_SC_0;
900 }
901 }
902 w83792d_write_value(new_client, W83792D_REG_I2C_SUBADDR,
903 (force_subclients[2] & 0x07) |
904 ((force_subclients[3] & 0x07) << 4));
905 }
906
907 val = w83792d_read_value(new_client, W83792D_REG_I2C_SUBADDR);
908 if (!(val & 0x08)) {
909 data->lm75[0] = i2c_new_dummy(adapter, 0x48 + (val & 0x7));
910 }
911 if (!(val & 0x80)) {
912 if ((data->lm75[0] != NULL) &&
913 ((val & 0x7) == ((val >> 4) & 0x7))) {
914 dev_err(&new_client->dev, "duplicate addresses 0x%x, "
915 "use force_subclient\n", data->lm75[0]->addr);
916 err = -ENODEV;
917 goto ERROR_SC_1;
918 }
919 data->lm75[1] = i2c_new_dummy(adapter,
920 0x48 + ((val >> 4) & 0x7));
921 }
922
923 return 0;
924
925 /* Undo inits in case of errors */
926
927 ERROR_SC_1:
928 if (data->lm75[0] != NULL)
929 i2c_unregister_device(data->lm75[0]);
930 ERROR_SC_0:
931 return err;
932 }
933
934 static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0);
935 static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1);
936 static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2);
937 static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3);
938 static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 4);
939 static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 5);
940 static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 6);
941 static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 7);
942 static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_in, NULL, 8);
943 static SENSOR_DEVICE_ATTR(in0_min, S_IWUSR | S_IRUGO,
944 show_in_min, store_in_min, 0);
945 static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO,
946 show_in_min, store_in_min, 1);
947 static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO,
948 show_in_min, store_in_min, 2);
949 static SENSOR_DEVICE_ATTR(in3_min, S_IWUSR | S_IRUGO,
950 show_in_min, store_in_min, 3);
951 static SENSOR_DEVICE_ATTR(in4_min, S_IWUSR | S_IRUGO,
952 show_in_min, store_in_min, 4);
953 static SENSOR_DEVICE_ATTR(in5_min, S_IWUSR | S_IRUGO,
954 show_in_min, store_in_min, 5);
955 static SENSOR_DEVICE_ATTR(in6_min, S_IWUSR | S_IRUGO,
956 show_in_min, store_in_min, 6);
957 static SENSOR_DEVICE_ATTR(in7_min, S_IWUSR | S_IRUGO,
958 show_in_min, store_in_min, 7);
959 static SENSOR_DEVICE_ATTR(in8_min, S_IWUSR | S_IRUGO,
960 show_in_min, store_in_min, 8);
961 static SENSOR_DEVICE_ATTR(in0_max, S_IWUSR | S_IRUGO,
962 show_in_max, store_in_max, 0);
963 static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO,
964 show_in_max, store_in_max, 1);
965 static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO,
966 show_in_max, store_in_max, 2);
967 static SENSOR_DEVICE_ATTR(in3_max, S_IWUSR | S_IRUGO,
968 show_in_max, store_in_max, 3);
969 static SENSOR_DEVICE_ATTR(in4_max, S_IWUSR | S_IRUGO,
970 show_in_max, store_in_max, 4);
971 static SENSOR_DEVICE_ATTR(in5_max, S_IWUSR | S_IRUGO,
972 show_in_max, store_in_max, 5);
973 static SENSOR_DEVICE_ATTR(in6_max, S_IWUSR | S_IRUGO,
974 show_in_max, store_in_max, 6);
975 static SENSOR_DEVICE_ATTR(in7_max, S_IWUSR | S_IRUGO,
976 show_in_max, store_in_max, 7);
977 static SENSOR_DEVICE_ATTR(in8_max, S_IWUSR | S_IRUGO,
978 show_in_max, store_in_max, 8);
979 static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp1, NULL, 0, 0);
980 static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp23, NULL, 0, 0);
981 static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp23, NULL, 1, 0);
982 static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR,
983 show_temp1, store_temp1, 0, 1);
984 static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp23,
985 store_temp23, 0, 2);
986 static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp23,
987 store_temp23, 1, 2);
988 static SENSOR_DEVICE_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR,
989 show_temp1, store_temp1, 0, 2);
990 static SENSOR_DEVICE_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR,
991 show_temp23, store_temp23, 0, 4);
992 static SENSOR_DEVICE_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR,
993 show_temp23, store_temp23, 1, 4);
994 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
995 static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
996 static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
997 static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 2);
998 static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 3);
999 static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 4);
1000 static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 5);
1001 static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 6);
1002 static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 7);
1003 static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 8);
1004 static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 9);
1005 static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 10);
1006 static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 11);
1007 static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 12);
1008 static SENSOR_DEVICE_ATTR(fan7_alarm, S_IRUGO, show_alarm, NULL, 15);
1009 static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 19);
1010 static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 20);
1011 static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 21);
1012 static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 22);
1013 static SENSOR_DEVICE_ATTR(fan6_alarm, S_IRUGO, show_alarm, NULL, 23);
1014 static DEVICE_ATTR(chassis, S_IRUGO, show_regs_chassis, NULL);
1015 static DEVICE_ATTR(chassis_clear, S_IRUGO | S_IWUSR,
1016 show_chassis_clear, store_chassis_clear);
1017 static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0);
1018 static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1);
1019 static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2);
1020 static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO,
1021 show_pwmenable, store_pwmenable, 1);
1022 static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO,
1023 show_pwmenable, store_pwmenable, 2);
1024 static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO,
1025 show_pwmenable, store_pwmenable, 3);
1026 static SENSOR_DEVICE_ATTR(pwm1_mode, S_IWUSR | S_IRUGO,
1027 show_pwm_mode, store_pwm_mode, 0);
1028 static SENSOR_DEVICE_ATTR(pwm2_mode, S_IWUSR | S_IRUGO,
1029 show_pwm_mode, store_pwm_mode, 1);
1030 static SENSOR_DEVICE_ATTR(pwm3_mode, S_IWUSR | S_IRUGO,
1031 show_pwm_mode, store_pwm_mode, 2);
1032 static SENSOR_DEVICE_ATTR(tolerance1, S_IWUSR | S_IRUGO,
1033 show_tolerance, store_tolerance, 1);
1034 static SENSOR_DEVICE_ATTR(tolerance2, S_IWUSR | S_IRUGO,
1035 show_tolerance, store_tolerance, 2);
1036 static SENSOR_DEVICE_ATTR(tolerance3, S_IWUSR | S_IRUGO,
1037 show_tolerance, store_tolerance, 3);
1038 static SENSOR_DEVICE_ATTR(thermal_cruise1, S_IWUSR | S_IRUGO,
1039 show_thermal_cruise, store_thermal_cruise, 1);
1040 static SENSOR_DEVICE_ATTR(thermal_cruise2, S_IWUSR | S_IRUGO,
1041 show_thermal_cruise, store_thermal_cruise, 2);
1042 static SENSOR_DEVICE_ATTR(thermal_cruise3, S_IWUSR | S_IRUGO,
1043 show_thermal_cruise, store_thermal_cruise, 3);
1044 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan1, S_IRUGO | S_IWUSR,
1045 show_sf2_point, store_sf2_point, 1, 1);
1046 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan1, S_IRUGO | S_IWUSR,
1047 show_sf2_point, store_sf2_point, 2, 1);
1048 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan1, S_IRUGO | S_IWUSR,
1049 show_sf2_point, store_sf2_point, 3, 1);
1050 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan1, S_IRUGO | S_IWUSR,
1051 show_sf2_point, store_sf2_point, 4, 1);
1052 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan2, S_IRUGO | S_IWUSR,
1053 show_sf2_point, store_sf2_point, 1, 2);
1054 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan2, S_IRUGO | S_IWUSR,
1055 show_sf2_point, store_sf2_point, 2, 2);
1056 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan2, S_IRUGO | S_IWUSR,
1057 show_sf2_point, store_sf2_point, 3, 2);
1058 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan2, S_IRUGO | S_IWUSR,
1059 show_sf2_point, store_sf2_point, 4, 2);
1060 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan3, S_IRUGO | S_IWUSR,
1061 show_sf2_point, store_sf2_point, 1, 3);
1062 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan3, S_IRUGO | S_IWUSR,
1063 show_sf2_point, store_sf2_point, 2, 3);
1064 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan3, S_IRUGO | S_IWUSR,
1065 show_sf2_point, store_sf2_point, 3, 3);
1066 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan3, S_IRUGO | S_IWUSR,
1067 show_sf2_point, store_sf2_point, 4, 3);
1068 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan1, S_IRUGO | S_IWUSR,
1069 show_sf2_level, store_sf2_level, 1, 1);
1070 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan1, S_IRUGO | S_IWUSR,
1071 show_sf2_level, store_sf2_level, 2, 1);
1072 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan1, S_IRUGO | S_IWUSR,
1073 show_sf2_level, store_sf2_level, 3, 1);
1074 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan2, S_IRUGO | S_IWUSR,
1075 show_sf2_level, store_sf2_level, 1, 2);
1076 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan2, S_IRUGO | S_IWUSR,
1077 show_sf2_level, store_sf2_level, 2, 2);
1078 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan2, S_IRUGO | S_IWUSR,
1079 show_sf2_level, store_sf2_level, 3, 2);
1080 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan3, S_IRUGO | S_IWUSR,
1081 show_sf2_level, store_sf2_level, 1, 3);
1082 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan3, S_IRUGO | S_IWUSR,
1083 show_sf2_level, store_sf2_level, 2, 3);
1084 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan3, S_IRUGO | S_IWUSR,
1085 show_sf2_level, store_sf2_level, 3, 3);
1086 static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 1);
1087 static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 2);
1088 static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 3);
1089 static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 4);
1090 static SENSOR_DEVICE_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 5);
1091 static SENSOR_DEVICE_ATTR(fan6_input, S_IRUGO, show_fan, NULL, 6);
1092 static SENSOR_DEVICE_ATTR(fan7_input, S_IRUGO, show_fan, NULL, 7);
1093 static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO,
1094 show_fan_min, store_fan_min, 1);
1095 static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO,
1096 show_fan_min, store_fan_min, 2);
1097 static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO,
1098 show_fan_min, store_fan_min, 3);
1099 static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO,
1100 show_fan_min, store_fan_min, 4);
1101 static SENSOR_DEVICE_ATTR(fan5_min, S_IWUSR | S_IRUGO,
1102 show_fan_min, store_fan_min, 5);
1103 static SENSOR_DEVICE_ATTR(fan6_min, S_IWUSR | S_IRUGO,
1104 show_fan_min, store_fan_min, 6);
1105 static SENSOR_DEVICE_ATTR(fan7_min, S_IWUSR | S_IRUGO,
1106 show_fan_min, store_fan_min, 7);
1107 static SENSOR_DEVICE_ATTR(fan1_div, S_IWUSR | S_IRUGO,
1108 show_fan_div, store_fan_div, 1);
1109 static SENSOR_DEVICE_ATTR(fan2_div, S_IWUSR | S_IRUGO,
1110 show_fan_div, store_fan_div, 2);
1111 static SENSOR_DEVICE_ATTR(fan3_div, S_IWUSR | S_IRUGO,
1112 show_fan_div, store_fan_div, 3);
1113 static SENSOR_DEVICE_ATTR(fan4_div, S_IWUSR | S_IRUGO,
1114 show_fan_div, store_fan_div, 4);
1115 static SENSOR_DEVICE_ATTR(fan5_div, S_IWUSR | S_IRUGO,
1116 show_fan_div, store_fan_div, 5);
1117 static SENSOR_DEVICE_ATTR(fan6_div, S_IWUSR | S_IRUGO,
1118 show_fan_div, store_fan_div, 6);
1119 static SENSOR_DEVICE_ATTR(fan7_div, S_IWUSR | S_IRUGO,
1120 show_fan_div, store_fan_div, 7);
1121
1122 static struct attribute *w83792d_attributes_fan[4][5] = {
1123 {
1124 &sensor_dev_attr_fan4_input.dev_attr.attr,
1125 &sensor_dev_attr_fan4_min.dev_attr.attr,
1126 &sensor_dev_attr_fan4_div.dev_attr.attr,
1127 &sensor_dev_attr_fan4_alarm.dev_attr.attr,
1128 NULL
1129 }, {
1130 &sensor_dev_attr_fan5_input.dev_attr.attr,
1131 &sensor_dev_attr_fan5_min.dev_attr.attr,
1132 &sensor_dev_attr_fan5_div.dev_attr.attr,
1133 &sensor_dev_attr_fan5_alarm.dev_attr.attr,
1134 NULL
1135 }, {
1136 &sensor_dev_attr_fan6_input.dev_attr.attr,
1137 &sensor_dev_attr_fan6_min.dev_attr.attr,
1138 &sensor_dev_attr_fan6_div.dev_attr.attr,
1139 &sensor_dev_attr_fan6_alarm.dev_attr.attr,
1140 NULL
1141 }, {
1142 &sensor_dev_attr_fan7_input.dev_attr.attr,
1143 &sensor_dev_attr_fan7_min.dev_attr.attr,
1144 &sensor_dev_attr_fan7_div.dev_attr.attr,
1145 &sensor_dev_attr_fan7_alarm.dev_attr.attr,
1146 NULL
1147 }
1148 };
1149
1150 static const struct attribute_group w83792d_group_fan[4] = {
1151 { .attrs = w83792d_attributes_fan[0] },
1152 { .attrs = w83792d_attributes_fan[1] },
1153 { .attrs = w83792d_attributes_fan[2] },
1154 { .attrs = w83792d_attributes_fan[3] },
1155 };
1156
1157 static struct attribute *w83792d_attributes[] = {
1158 &sensor_dev_attr_in0_input.dev_attr.attr,
1159 &sensor_dev_attr_in0_max.dev_attr.attr,
1160 &sensor_dev_attr_in0_min.dev_attr.attr,
1161 &sensor_dev_attr_in1_input.dev_attr.attr,
1162 &sensor_dev_attr_in1_max.dev_attr.attr,
1163 &sensor_dev_attr_in1_min.dev_attr.attr,
1164 &sensor_dev_attr_in2_input.dev_attr.attr,
1165 &sensor_dev_attr_in2_max.dev_attr.attr,
1166 &sensor_dev_attr_in2_min.dev_attr.attr,
1167 &sensor_dev_attr_in3_input.dev_attr.attr,
1168 &sensor_dev_attr_in3_max.dev_attr.attr,
1169 &sensor_dev_attr_in3_min.dev_attr.attr,
1170 &sensor_dev_attr_in4_input.dev_attr.attr,
1171 &sensor_dev_attr_in4_max.dev_attr.attr,
1172 &sensor_dev_attr_in4_min.dev_attr.attr,
1173 &sensor_dev_attr_in5_input.dev_attr.attr,
1174 &sensor_dev_attr_in5_max.dev_attr.attr,
1175 &sensor_dev_attr_in5_min.dev_attr.attr,
1176 &sensor_dev_attr_in6_input.dev_attr.attr,
1177 &sensor_dev_attr_in6_max.dev_attr.attr,
1178 &sensor_dev_attr_in6_min.dev_attr.attr,
1179 &sensor_dev_attr_in7_input.dev_attr.attr,
1180 &sensor_dev_attr_in7_max.dev_attr.attr,
1181 &sensor_dev_attr_in7_min.dev_attr.attr,
1182 &sensor_dev_attr_in8_input.dev_attr.attr,
1183 &sensor_dev_attr_in8_max.dev_attr.attr,
1184 &sensor_dev_attr_in8_min.dev_attr.attr,
1185 &sensor_dev_attr_in0_alarm.dev_attr.attr,
1186 &sensor_dev_attr_in1_alarm.dev_attr.attr,
1187 &sensor_dev_attr_in2_alarm.dev_attr.attr,
1188 &sensor_dev_attr_in3_alarm.dev_attr.attr,
1189 &sensor_dev_attr_in4_alarm.dev_attr.attr,
1190 &sensor_dev_attr_in5_alarm.dev_attr.attr,
1191 &sensor_dev_attr_in6_alarm.dev_attr.attr,
1192 &sensor_dev_attr_in7_alarm.dev_attr.attr,
1193 &sensor_dev_attr_in8_alarm.dev_attr.attr,
1194 &sensor_dev_attr_temp1_input.dev_attr.attr,
1195 &sensor_dev_attr_temp1_max.dev_attr.attr,
1196 &sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
1197 &sensor_dev_attr_temp2_input.dev_attr.attr,
1198 &sensor_dev_attr_temp2_max.dev_attr.attr,
1199 &sensor_dev_attr_temp2_max_hyst.dev_attr.attr,
1200 &sensor_dev_attr_temp3_input.dev_attr.attr,
1201 &sensor_dev_attr_temp3_max.dev_attr.attr,
1202 &sensor_dev_attr_temp3_max_hyst.dev_attr.attr,
1203 &sensor_dev_attr_temp1_alarm.dev_attr.attr,
1204 &sensor_dev_attr_temp2_alarm.dev_attr.attr,
1205 &sensor_dev_attr_temp3_alarm.dev_attr.attr,
1206 &sensor_dev_attr_pwm1.dev_attr.attr,
1207 &sensor_dev_attr_pwm1_mode.dev_attr.attr,
1208 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
1209 &sensor_dev_attr_pwm2.dev_attr.attr,
1210 &sensor_dev_attr_pwm2_mode.dev_attr.attr,
1211 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
1212 &sensor_dev_attr_pwm3.dev_attr.attr,
1213 &sensor_dev_attr_pwm3_mode.dev_attr.attr,
1214 &sensor_dev_attr_pwm3_enable.dev_attr.attr,
1215 &dev_attr_alarms.attr,
1216 &dev_attr_chassis.attr,
1217 &dev_attr_chassis_clear.attr,
1218 &sensor_dev_attr_tolerance1.dev_attr.attr,
1219 &sensor_dev_attr_thermal_cruise1.dev_attr.attr,
1220 &sensor_dev_attr_tolerance2.dev_attr.attr,
1221 &sensor_dev_attr_thermal_cruise2.dev_attr.attr,
1222 &sensor_dev_attr_tolerance3.dev_attr.attr,
1223 &sensor_dev_attr_thermal_cruise3.dev_attr.attr,
1224 &sensor_dev_attr_sf2_point1_fan1.dev_attr.attr,
1225 &sensor_dev_attr_sf2_point2_fan1.dev_attr.attr,
1226 &sensor_dev_attr_sf2_point3_fan1.dev_attr.attr,
1227 &sensor_dev_attr_sf2_point4_fan1.dev_attr.attr,
1228 &sensor_dev_attr_sf2_point1_fan2.dev_attr.attr,
1229 &sensor_dev_attr_sf2_point2_fan2.dev_attr.attr,
1230 &sensor_dev_attr_sf2_point3_fan2.dev_attr.attr,
1231 &sensor_dev_attr_sf2_point4_fan2.dev_attr.attr,
1232 &sensor_dev_attr_sf2_point1_fan3.dev_attr.attr,
1233 &sensor_dev_attr_sf2_point2_fan3.dev_attr.attr,
1234 &sensor_dev_attr_sf2_point3_fan3.dev_attr.attr,
1235 &sensor_dev_attr_sf2_point4_fan3.dev_attr.attr,
1236 &sensor_dev_attr_sf2_level1_fan1.dev_attr.attr,
1237 &sensor_dev_attr_sf2_level2_fan1.dev_attr.attr,
1238 &sensor_dev_attr_sf2_level3_fan1.dev_attr.attr,
1239 &sensor_dev_attr_sf2_level1_fan2.dev_attr.attr,
1240 &sensor_dev_attr_sf2_level2_fan2.dev_attr.attr,
1241 &sensor_dev_attr_sf2_level3_fan2.dev_attr.attr,
1242 &sensor_dev_attr_sf2_level1_fan3.dev_attr.attr,
1243 &sensor_dev_attr_sf2_level2_fan3.dev_attr.attr,
1244 &sensor_dev_attr_sf2_level3_fan3.dev_attr.attr,
1245 &sensor_dev_attr_fan1_input.dev_attr.attr,
1246 &sensor_dev_attr_fan1_min.dev_attr.attr,
1247 &sensor_dev_attr_fan1_div.dev_attr.attr,
1248 &sensor_dev_attr_fan1_alarm.dev_attr.attr,
1249 &sensor_dev_attr_fan2_input.dev_attr.attr,
1250 &sensor_dev_attr_fan2_min.dev_attr.attr,
1251 &sensor_dev_attr_fan2_div.dev_attr.attr,
1252 &sensor_dev_attr_fan2_alarm.dev_attr.attr,
1253 &sensor_dev_attr_fan3_input.dev_attr.attr,
1254 &sensor_dev_attr_fan3_min.dev_attr.attr,
1255 &sensor_dev_attr_fan3_div.dev_attr.attr,
1256 &sensor_dev_attr_fan3_alarm.dev_attr.attr,
1257 NULL
1258 };
1259
1260 static const struct attribute_group w83792d_group = {
1261 .attrs = w83792d_attributes,
1262 };
1263
1264 /* Return 0 if detection is successful, -ENODEV otherwise */
1265 static int
1266 w83792d_detect(struct i2c_client *client, int kind, struct i2c_board_info *info)
1267 {
1268 struct i2c_adapter *adapter = client->adapter;
1269 int val1, val2;
1270 unsigned short address = client->addr;
1271
1272 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
1273 return -ENODEV;
1274 }
1275
1276 /* The w83792d may be stuck in some other bank than bank 0. This may
1277 make reading other information impossible. Specify a force=... or
1278 force_*=... parameter, and the Winbond will be reset to the right
1279 bank. */
1280 if (kind < 0) {
1281 if (w83792d_read_value(client, W83792D_REG_CONFIG) & 0x80) {
1282 return -ENODEV;
1283 }
1284 val1 = w83792d_read_value(client, W83792D_REG_BANK);
1285 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN);
1286 /* Check for Winbond ID if in bank 0 */
1287 if (!(val1 & 0x07)) { /* is Bank0 */
1288 if (((!(val1 & 0x80)) && (val2 != 0xa3)) ||
1289 ((val1 & 0x80) && (val2 != 0x5c))) {
1290 return -ENODEV;
1291 }
1292 }
1293 /* If Winbond chip, address of chip and W83792D_REG_I2C_ADDR
1294 should match */
1295 if (w83792d_read_value(client,
1296 W83792D_REG_I2C_ADDR) != address) {
1297 return -ENODEV;
1298 }
1299 }
1300
1301 /* We have either had a force parameter, or we have already detected the
1302 Winbond. Put it now into bank 0 and Vendor ID High Byte */
1303 w83792d_write_value(client,
1304 W83792D_REG_BANK,
1305 (w83792d_read_value(client,
1306 W83792D_REG_BANK) & 0x78) | 0x80);
1307
1308 /* Determine the chip type. */
1309 if (kind <= 0) {
1310 /* get vendor ID */
1311 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN);
1312 if (val2 != 0x5c) { /* the vendor is NOT Winbond */
1313 return -ENODEV;
1314 }
1315 val1 = w83792d_read_value(client, W83792D_REG_WCHIPID);
1316 if (val1 == 0x7a) {
1317 kind = w83792d;
1318 } else {
1319 if (kind == 0)
1320 dev_warn(&adapter->dev,
1321 "w83792d: Ignoring 'force' parameter for"
1322 " unknown chip at adapter %d, address"
1323 " 0x%02x\n", i2c_adapter_id(adapter),
1324 address);
1325 return -ENODEV;
1326 }
1327 }
1328
1329 strlcpy(info->type, "w83792d", I2C_NAME_SIZE);
1330
1331 return 0;
1332 }
1333
1334 static int
1335 w83792d_probe(struct i2c_client *client, const struct i2c_device_id *id)
1336 {
1337 struct w83792d_data *data;
1338 struct device *dev = &client->dev;
1339 int i, val1, err;
1340
1341 data = kzalloc(sizeof(struct w83792d_data), GFP_KERNEL);
1342 if (!data) {
1343 err = -ENOMEM;
1344 goto ERROR0;
1345 }
1346
1347 i2c_set_clientdata(client, data);
1348 data->valid = 0;
1349 mutex_init(&data->update_lock);
1350
1351 err = w83792d_detect_subclients(client);
1352 if (err)
1353 goto ERROR1;
1354
1355 /* Initialize the chip */
1356 w83792d_init_client(client);
1357
1358 /* A few vars need to be filled upon startup */
1359 for (i = 0; i < 7; i++) {
1360 data->fan_min[i] = w83792d_read_value(client,
1361 W83792D_REG_FAN_MIN[i]);
1362 }
1363
1364 /* Register sysfs hooks */
1365 if ((err = sysfs_create_group(&dev->kobj, &w83792d_group)))
1366 goto ERROR3;
1367
1368 /* Read GPIO enable register to check if pins for fan 4,5 are used as
1369 GPIO */
1370 val1 = w83792d_read_value(client, W83792D_REG_GPIO_EN);
1371
1372 if (!(val1 & 0x40))
1373 if ((err = sysfs_create_group(&dev->kobj,
1374 &w83792d_group_fan[0])))
1375 goto exit_remove_files;
1376
1377 if (!(val1 & 0x20))
1378 if ((err = sysfs_create_group(&dev->kobj,
1379 &w83792d_group_fan[1])))
1380 goto exit_remove_files;
1381
1382 val1 = w83792d_read_value(client, W83792D_REG_PIN);
1383 if (val1 & 0x40)
1384 if ((err = sysfs_create_group(&dev->kobj,
1385 &w83792d_group_fan[2])))
1386 goto exit_remove_files;
1387
1388 if (val1 & 0x04)
1389 if ((err = sysfs_create_group(&dev->kobj,
1390 &w83792d_group_fan[3])))
1391 goto exit_remove_files;
1392
1393 data->hwmon_dev = hwmon_device_register(dev);
1394 if (IS_ERR(data->hwmon_dev)) {
1395 err = PTR_ERR(data->hwmon_dev);
1396 goto exit_remove_files;
1397 }
1398
1399 return 0;
1400
1401 exit_remove_files:
1402 sysfs_remove_group(&dev->kobj, &w83792d_group);
1403 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++)
1404 sysfs_remove_group(&dev->kobj, &w83792d_group_fan[i]);
1405 ERROR3:
1406 if (data->lm75[0] != NULL)
1407 i2c_unregister_device(data->lm75[0]);
1408 if (data->lm75[1] != NULL)
1409 i2c_unregister_device(data->lm75[1]);
1410 ERROR1:
1411 kfree(data);
1412 ERROR0:
1413 return err;
1414 }
1415
1416 static int
1417 w83792d_remove(struct i2c_client *client)
1418 {
1419 struct w83792d_data *data = i2c_get_clientdata(client);
1420 int i;
1421
1422 hwmon_device_unregister(data->hwmon_dev);
1423 sysfs_remove_group(&client->dev.kobj, &w83792d_group);
1424 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++)
1425 sysfs_remove_group(&client->dev.kobj,
1426 &w83792d_group_fan[i]);
1427
1428 if (data->lm75[0] != NULL)
1429 i2c_unregister_device(data->lm75[0]);
1430 if (data->lm75[1] != NULL)
1431 i2c_unregister_device(data->lm75[1]);
1432
1433 kfree(data);
1434 return 0;
1435 }
1436
1437 static void
1438 w83792d_init_client(struct i2c_client *client)
1439 {
1440 u8 temp2_cfg, temp3_cfg, vid_in_b;
1441
1442 if (init) {
1443 w83792d_write_value(client, W83792D_REG_CONFIG, 0x80);
1444 }
1445 /* Clear the bit6 of W83792D_REG_VID_IN_B(set it into 0):
1446 W83792D_REG_VID_IN_B bit6 = 0: the high/low limit of
1447 vin0/vin1 can be modified by user;
1448 W83792D_REG_VID_IN_B bit6 = 1: the high/low limit of
1449 vin0/vin1 auto-updated, can NOT be modified by user. */
1450 vid_in_b = w83792d_read_value(client, W83792D_REG_VID_IN_B);
1451 w83792d_write_value(client, W83792D_REG_VID_IN_B,
1452 vid_in_b & 0xbf);
1453
1454 temp2_cfg = w83792d_read_value(client, W83792D_REG_TEMP2_CONFIG);
1455 temp3_cfg = w83792d_read_value(client, W83792D_REG_TEMP3_CONFIG);
1456 w83792d_write_value(client, W83792D_REG_TEMP2_CONFIG,
1457 temp2_cfg & 0xe6);
1458 w83792d_write_value(client, W83792D_REG_TEMP3_CONFIG,
1459 temp3_cfg & 0xe6);
1460
1461 /* Start monitoring */
1462 w83792d_write_value(client, W83792D_REG_CONFIG,
1463 (w83792d_read_value(client,
1464 W83792D_REG_CONFIG) & 0xf7)
1465 | 0x01);
1466 }
1467
1468 static struct w83792d_data *w83792d_update_device(struct device *dev)
1469 {
1470 struct i2c_client *client = to_i2c_client(dev);
1471 struct w83792d_data *data = i2c_get_clientdata(client);
1472 int i, j;
1473 u8 reg_array_tmp[4], reg_tmp;
1474
1475 mutex_lock(&data->update_lock);
1476
1477 if (time_after
1478 (jiffies - data->last_updated, (unsigned long) (HZ * 3))
1479 || time_before(jiffies, data->last_updated) || !data->valid) {
1480 dev_dbg(dev, "Starting device update\n");
1481
1482 /* Update the voltages measured value and limits */
1483 for (i = 0; i < 9; i++) {
1484 data->in[i] = w83792d_read_value(client,
1485 W83792D_REG_IN[i]);
1486 data->in_max[i] = w83792d_read_value(client,
1487 W83792D_REG_IN_MAX[i]);
1488 data->in_min[i] = w83792d_read_value(client,
1489 W83792D_REG_IN_MIN[i]);
1490 }
1491 data->low_bits = w83792d_read_value(client,
1492 W83792D_REG_LOW_BITS1) +
1493 (w83792d_read_value(client,
1494 W83792D_REG_LOW_BITS2) << 8);
1495 for (i = 0; i < 7; i++) {
1496 /* Update the Fan measured value and limits */
1497 data->fan[i] = w83792d_read_value(client,
1498 W83792D_REG_FAN[i]);
1499 data->fan_min[i] = w83792d_read_value(client,
1500 W83792D_REG_FAN_MIN[i]);
1501 /* Update the PWM/DC Value and PWM/DC flag */
1502 data->pwm[i] = w83792d_read_value(client,
1503 W83792D_REG_PWM[i]);
1504 }
1505
1506 reg_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG);
1507 data->pwmenable[0] = reg_tmp & 0x03;
1508 data->pwmenable[1] = (reg_tmp>>2) & 0x03;
1509 data->pwmenable[2] = (reg_tmp>>4) & 0x03;
1510
1511 for (i = 0; i < 3; i++) {
1512 data->temp1[i] = w83792d_read_value(client,
1513 W83792D_REG_TEMP1[i]);
1514 }
1515 for (i = 0; i < 2; i++) {
1516 for (j = 0; j < 6; j++) {
1517 data->temp_add[i][j] = w83792d_read_value(
1518 client,W83792D_REG_TEMP_ADD[i][j]);
1519 }
1520 }
1521
1522 /* Update the Fan Divisor */
1523 for (i = 0; i < 4; i++) {
1524 reg_array_tmp[i] = w83792d_read_value(client,
1525 W83792D_REG_FAN_DIV[i]);
1526 }
1527 data->fan_div[0] = reg_array_tmp[0] & 0x07;
1528 data->fan_div[1] = (reg_array_tmp[0] >> 4) & 0x07;
1529 data->fan_div[2] = reg_array_tmp[1] & 0x07;
1530 data->fan_div[3] = (reg_array_tmp[1] >> 4) & 0x07;
1531 data->fan_div[4] = reg_array_tmp[2] & 0x07;
1532 data->fan_div[5] = (reg_array_tmp[2] >> 4) & 0x07;
1533 data->fan_div[6] = reg_array_tmp[3] & 0x07;
1534
1535 /* Update the realtime status */
1536 data->alarms = w83792d_read_value(client, W83792D_REG_ALARM1) +
1537 (w83792d_read_value(client, W83792D_REG_ALARM2) << 8) +
1538 (w83792d_read_value(client, W83792D_REG_ALARM3) << 16);
1539
1540 /* Update CaseOpen status and it's CLR_CHS. */
1541 data->chassis = (w83792d_read_value(client,
1542 W83792D_REG_CHASSIS) >> 5) & 0x01;
1543 data->chassis_clear = (w83792d_read_value(client,
1544 W83792D_REG_CHASSIS_CLR) >> 7) & 0x01;
1545
1546 /* Update Thermal Cruise/Smart Fan I target value */
1547 for (i = 0; i < 3; i++) {
1548 data->thermal_cruise[i] =
1549 w83792d_read_value(client,
1550 W83792D_REG_THERMAL[i]) & 0x7f;
1551 }
1552
1553 /* Update Smart Fan I/II tolerance */
1554 reg_tmp = w83792d_read_value(client, W83792D_REG_TOLERANCE[0]);
1555 data->tolerance[0] = reg_tmp & 0x0f;
1556 data->tolerance[1] = (reg_tmp >> 4) & 0x0f;
1557 data->tolerance[2] = w83792d_read_value(client,
1558 W83792D_REG_TOLERANCE[2]) & 0x0f;
1559
1560 /* Update Smart Fan II temperature points */
1561 for (i = 0; i < 3; i++) {
1562 for (j = 0; j < 4; j++) {
1563 data->sf2_points[i][j] = w83792d_read_value(
1564 client,W83792D_REG_POINTS[i][j]) & 0x7f;
1565 }
1566 }
1567
1568 /* Update Smart Fan II duty cycle levels */
1569 for (i = 0; i < 3; i++) {
1570 reg_tmp = w83792d_read_value(client,
1571 W83792D_REG_LEVELS[i][0]);
1572 data->sf2_levels[i][0] = reg_tmp & 0x0f;
1573 data->sf2_levels[i][1] = (reg_tmp >> 4) & 0x0f;
1574 reg_tmp = w83792d_read_value(client,
1575 W83792D_REG_LEVELS[i][2]);
1576 data->sf2_levels[i][2] = (reg_tmp >> 4) & 0x0f;
1577 data->sf2_levels[i][3] = reg_tmp & 0x0f;
1578 }
1579
1580 data->last_updated = jiffies;
1581 data->valid = 1;
1582 }
1583
1584 mutex_unlock(&data->update_lock);
1585
1586 #ifdef DEBUG
1587 w83792d_print_debug(data, dev);
1588 #endif
1589
1590 return data;
1591 }
1592
1593 #ifdef DEBUG
1594 static void w83792d_print_debug(struct w83792d_data *data, struct device *dev)
1595 {
1596 int i=0, j=0;
1597 dev_dbg(dev, "==========The following is the debug message...========\n");
1598 dev_dbg(dev, "9 set of Voltages: =====>\n");
1599 for (i=0; i<9; i++) {
1600 dev_dbg(dev, "vin[%d] is: 0x%x\n", i, data->in[i]);
1601 dev_dbg(dev, "vin[%d] max is: 0x%x\n", i, data->in_max[i]);
1602 dev_dbg(dev, "vin[%d] min is: 0x%x\n", i, data->in_min[i]);
1603 }
1604 dev_dbg(dev, "Low Bit1 is: 0x%x\n", data->low_bits & 0xff);
1605 dev_dbg(dev, "Low Bit2 is: 0x%x\n", data->low_bits >> 8);
1606 dev_dbg(dev, "7 set of Fan Counts and Duty Cycles: =====>\n");
1607 for (i=0; i<7; i++) {
1608 dev_dbg(dev, "fan[%d] is: 0x%x\n", i, data->fan[i]);
1609 dev_dbg(dev, "fan[%d] min is: 0x%x\n", i, data->fan_min[i]);
1610 dev_dbg(dev, "pwm[%d] is: 0x%x\n", i, data->pwm[i]);
1611 }
1612 dev_dbg(dev, "3 set of Temperatures: =====>\n");
1613 for (i=0; i<3; i++) {
1614 dev_dbg(dev, "temp1[%d] is: 0x%x\n", i, data->temp1[i]);
1615 }
1616
1617 for (i=0; i<2; i++) {
1618 for (j=0; j<6; j++) {
1619 dev_dbg(dev, "temp_add[%d][%d] is: 0x%x\n", i, j,
1620 data->temp_add[i][j]);
1621 }
1622 }
1623
1624 for (i=0; i<7; i++) {
1625 dev_dbg(dev, "fan_div[%d] is: 0x%x\n", i, data->fan_div[i]);
1626 }
1627 dev_dbg(dev, "==========End of the debug message...==================\n");
1628 dev_dbg(dev, "\n");
1629 }
1630 #endif
1631
1632 static int __init
1633 sensors_w83792d_init(void)
1634 {
1635 return i2c_add_driver(&w83792d_driver);
1636 }
1637
1638 static void __exit
1639 sensors_w83792d_exit(void)
1640 {
1641 i2c_del_driver(&w83792d_driver);
1642 }
1643
1644 MODULE_AUTHOR("Chunhao Huang @ Winbond <DZShen@Winbond.com.tw>");
1645 MODULE_DESCRIPTION("W83792AD/D driver for linux-2.6");
1646 MODULE_LICENSE("GPL");
1647
1648 module_init(sensors_w83792d_init);
1649 module_exit(sensors_w83792d_exit);
1650
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree