hwmon: (adt7473) Remove unused defines
[linux-2.6.git] / drivers / hwmon / w83792d.c
1 /*
2     w83792d.c - Part of lm_sensors, Linux kernel modules for hardware
3                 monitoring
4     Copyright (C) 2004, 2005 Winbond Electronics Corp.
5                         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 i2c_client client;
271         struct device *hwmon_dev;
272         enum chips type;
273
274         struct mutex update_lock;
275         char valid;             /* !=0 if following fields are valid */
276         unsigned long last_updated;     /* In jiffies */
277
278         /* array of 2 pointers to subclients */
279         struct i2c_client *lm75[2];
280
281         u8 in[9];               /* Register value */
282         u8 in_max[9];           /* Register value */
283         u8 in_min[9];           /* Register value */
284         u16 low_bits;           /* Additional resolution to voltage in6-0 */
285         u8 fan[7];              /* Register value */
286         u8 fan_min[7];          /* Register value */
287         u8 temp1[3];            /* current, over, thyst */
288         u8 temp_add[2][6];      /* Register value */
289         u8 fan_div[7];          /* Register encoding, shifted right */
290         u8 pwm[7];              /* We only consider the first 3 set of pwm,
291                                    although 792 chip has 7 set of pwm. */
292         u8 pwmenable[3];
293         u32 alarms;             /* realtime status register encoding,combined */
294         u8 chassis;             /* Chassis status */
295         u8 chassis_clear;       /* CLR_CHS, clear chassis intrusion detection */
296         u8 thermal_cruise[3];   /* Smart FanI: Fan1,2,3 target value */
297         u8 tolerance[3];        /* Fan1,2,3 tolerance(Smart Fan I/II) */
298         u8 sf2_points[3][4];    /* Smart FanII: Fan1,2,3 temperature points */
299         u8 sf2_levels[3][4];    /* Smart FanII: Fan1,2,3 duty cycle levels */
300 };
301
302 static int w83792d_attach_adapter(struct i2c_adapter *adapter);
303 static int w83792d_detect(struct i2c_adapter *adapter, int address, int kind);
304 static int w83792d_detach_client(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 struct i2c_driver w83792d_driver = {
314         .driver = {
315                 .name = "w83792d",
316         },
317         .attach_adapter = w83792d_attach_adapter,
318         .detach_client = w83792d_detach_client,
319 };
320
321 static inline long in_count_from_reg(int nr, struct w83792d_data *data)
322 {
323         /* in7 and in8 do not have low bits, but the formula still works */
324         return ((data->in[nr] << 2) | ((data->low_bits >> (2 * nr)) & 0x03));
325 }
326
327 /* The SMBus locks itself. The Winbond W83792D chip has a bank register,
328    but the driver only accesses registers in bank 0, so we don't have
329    to switch banks and lock access between switches. */
330 static inline int w83792d_read_value(struct i2c_client *client, u8 reg)
331 {
332         return i2c_smbus_read_byte_data(client, reg);
333 }
334
335 static inline int
336 w83792d_write_value(struct i2c_client *client, u8 reg, u8 value)
337 {
338         return i2c_smbus_write_byte_data(client, reg, value);
339 }
340
341 /* following are the sysfs callback functions */
342 static ssize_t show_in(struct device *dev, struct device_attribute *attr,
343                         char *buf)
344 {
345         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
346         int nr = sensor_attr->index;
347         struct w83792d_data *data = w83792d_update_device(dev);
348         return sprintf(buf,"%ld\n", IN_FROM_REG(nr,(in_count_from_reg(nr, data))));
349 }
350
351 #define show_in_reg(reg) \
352 static ssize_t show_##reg(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", (long)(IN_FROM_REG(nr, (data->reg[nr])*4))); \
359 }
360
361 show_in_reg(in_min);
362 show_in_reg(in_max);
363
364 #define store_in_reg(REG, reg) \
365 static ssize_t store_in_##reg (struct device *dev, \
366                                 struct device_attribute *attr, \
367                                 const char *buf, size_t count) \
368 { \
369         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
370         int nr = sensor_attr->index; \
371         struct i2c_client *client = to_i2c_client(dev); \
372         struct w83792d_data *data = i2c_get_clientdata(client); \
373         u32 val; \
374          \
375         val = simple_strtoul(buf, NULL, 10); \
376         mutex_lock(&data->update_lock); \
377         data->in_##reg[nr] = SENSORS_LIMIT(IN_TO_REG(nr, val)/4, 0, 255); \
378         w83792d_write_value(client, W83792D_REG_IN_##REG[nr], data->in_##reg[nr]); \
379         mutex_unlock(&data->update_lock); \
380          \
381         return count; \
382 }
383 store_in_reg(MIN, min);
384 store_in_reg(MAX, max);
385
386 #define show_fan_reg(reg) \
387 static ssize_t show_##reg (struct device *dev, struct device_attribute *attr, \
388                         char *buf) \
389 { \
390         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
391         int nr = sensor_attr->index - 1; \
392         struct w83792d_data *data = w83792d_update_device(dev); \
393         return sprintf(buf,"%d\n", \
394                 FAN_FROM_REG(data->reg[nr], DIV_FROM_REG(data->fan_div[nr]))); \
395 }
396
397 show_fan_reg(fan);
398 show_fan_reg(fan_min);
399
400 static ssize_t
401 store_fan_min(struct device *dev, struct device_attribute *attr,
402                 const char *buf, size_t count)
403 {
404         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
405         int nr = sensor_attr->index - 1;
406         struct i2c_client *client = to_i2c_client(dev);
407         struct w83792d_data *data = i2c_get_clientdata(client);
408         u32 val;
409
410         val = simple_strtoul(buf, NULL, 10);
411         mutex_lock(&data->update_lock);
412         data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
413         w83792d_write_value(client, W83792D_REG_FAN_MIN[nr],
414                                 data->fan_min[nr]);
415         mutex_unlock(&data->update_lock);
416
417         return count;
418 }
419
420 static ssize_t
421 show_fan_div(struct device *dev, struct device_attribute *attr,
422                 char *buf)
423 {
424         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
425         int nr = sensor_attr->index;
426         struct w83792d_data *data = w83792d_update_device(dev);
427         return sprintf(buf, "%u\n", DIV_FROM_REG(data->fan_div[nr - 1]));
428 }
429
430 /* Note: we save and restore the fan minimum here, because its value is
431    determined in part by the fan divisor.  This follows the principle of
432    least surprise; the user doesn't expect the fan minimum to change just
433    because the divisor changed. */
434 static ssize_t
435 store_fan_div(struct device *dev, struct device_attribute *attr,
436                 const char *buf, size_t count)
437 {
438         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
439         int nr = sensor_attr->index - 1;
440         struct i2c_client *client = to_i2c_client(dev);
441         struct w83792d_data *data = i2c_get_clientdata(client);
442         unsigned long min;
443         /*u8 reg;*/
444         u8 fan_div_reg = 0;
445         u8 tmp_fan_div;
446
447         /* Save fan_min */
448         mutex_lock(&data->update_lock);
449         min = FAN_FROM_REG(data->fan_min[nr],
450                            DIV_FROM_REG(data->fan_div[nr]));
451
452         data->fan_div[nr] = DIV_TO_REG(simple_strtoul(buf, NULL, 10));
453
454         fan_div_reg = w83792d_read_value(client, W83792D_REG_FAN_DIV[nr >> 1]);
455         fan_div_reg &= (nr & 0x01) ? 0x8f : 0xf8;
456         tmp_fan_div = (nr & 0x01) ? (((data->fan_div[nr]) << 4) & 0x70)
457                                         : ((data->fan_div[nr]) & 0x07);
458         w83792d_write_value(client, W83792D_REG_FAN_DIV[nr >> 1],
459                                         fan_div_reg | tmp_fan_div);
460
461         /* Restore fan_min */
462         data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
463         w83792d_write_value(client, W83792D_REG_FAN_MIN[nr], data->fan_min[nr]);
464         mutex_unlock(&data->update_lock);
465
466         return count;
467 }
468
469 /* read/write the temperature1, includes measured value and limits */
470
471 static ssize_t show_temp1(struct device *dev, struct device_attribute *attr,
472                                 char *buf)
473 {
474         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
475         int nr = sensor_attr->index;
476         struct w83792d_data *data = w83792d_update_device(dev);
477         return sprintf(buf, "%d\n", TEMP1_FROM_REG(data->temp1[nr]));
478 }
479
480 static ssize_t store_temp1(struct device *dev, struct device_attribute *attr,
481                                 const char *buf, size_t count)
482 {
483         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
484         int nr = sensor_attr->index;
485         struct i2c_client *client = to_i2c_client(dev);
486         struct w83792d_data *data = i2c_get_clientdata(client);
487         s32 val;
488
489         val = simple_strtol(buf, NULL, 10);
490         mutex_lock(&data->update_lock);
491         data->temp1[nr] = TEMP1_TO_REG(val);
492         w83792d_write_value(client, W83792D_REG_TEMP1[nr],
493                 data->temp1[nr]);
494         mutex_unlock(&data->update_lock);
495
496         return count;
497 }
498
499 /* read/write the temperature2-3, includes measured value and limits */
500
501 static ssize_t show_temp23(struct device *dev, struct device_attribute *attr,
502                                 char *buf)
503 {
504         struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
505         int nr = sensor_attr->nr;
506         int index = sensor_attr->index;
507         struct w83792d_data *data = w83792d_update_device(dev);
508         return sprintf(buf,"%ld\n",
509                 (long)TEMP_ADD_FROM_REG(data->temp_add[nr][index],
510                         data->temp_add[nr][index+1]));
511 }
512
513 static ssize_t store_temp23(struct device *dev, struct device_attribute *attr,
514                                 const char *buf, size_t count)
515 {
516         struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
517         int nr = sensor_attr->nr;
518         int index = sensor_attr->index;
519         struct i2c_client *client = to_i2c_client(dev);
520         struct w83792d_data *data = i2c_get_clientdata(client);
521         s32 val;
522
523         val = simple_strtol(buf, NULL, 10);
524         mutex_lock(&data->update_lock);
525         data->temp_add[nr][index] = TEMP_ADD_TO_REG_HIGH(val);
526         data->temp_add[nr][index+1] = TEMP_ADD_TO_REG_LOW(val);
527         w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index],
528                 data->temp_add[nr][index]);
529         w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index+1],
530                 data->temp_add[nr][index+1]);
531         mutex_unlock(&data->update_lock);
532
533         return count;
534 }
535
536 /* get reatime status of all sensors items: voltage, temp, fan */
537 static ssize_t
538 show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf)
539 {
540         struct w83792d_data *data = w83792d_update_device(dev);
541         return sprintf(buf, "%d\n", data->alarms);
542 }
543
544 static ssize_t show_alarm(struct device *dev,
545                           struct device_attribute *attr, char *buf)
546 {
547         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
548         int nr = sensor_attr->index;
549         struct w83792d_data *data = w83792d_update_device(dev);
550         return sprintf(buf, "%d\n", (data->alarms >> nr) & 1);
551 }
552
553 static ssize_t
554 show_pwm(struct device *dev, struct device_attribute *attr,
555                 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->pwm[nr] & 0x0f) << 4);
561 }
562
563 static ssize_t
564 show_pwmenable(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 - 1;
569         struct w83792d_data *data = w83792d_update_device(dev);
570         long pwm_enable_tmp = 1;
571
572         switch (data->pwmenable[nr]) {
573         case 0:
574                 pwm_enable_tmp = 1; /* manual mode */
575                 break;
576         case 1:
577                 pwm_enable_tmp = 3; /*thermal cruise/Smart Fan I */
578                 break;
579         case 2:
580                 pwm_enable_tmp = 2; /* Smart Fan II */
581                 break;
582         }
583
584         return sprintf(buf, "%ld\n", pwm_enable_tmp);
585 }
586
587 static ssize_t
588 store_pwm(struct device *dev, struct device_attribute *attr,
589                 const char *buf, size_t count)
590 {
591         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
592         int nr = sensor_attr->index;
593         struct i2c_client *client = to_i2c_client(dev);
594         struct w83792d_data *data = i2c_get_clientdata(client);
595         u8 val = SENSORS_LIMIT(simple_strtoul(buf, NULL, 10), 0, 255) >> 4;
596
597         mutex_lock(&data->update_lock);
598         val |= w83792d_read_value(client, W83792D_REG_PWM[nr]) & 0xf0;
599         data->pwm[nr] = val;
600         w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]);
601         mutex_unlock(&data->update_lock);
602
603         return count;
604 }
605
606 static ssize_t
607 store_pwmenable(struct device *dev, struct device_attribute *attr,
608                         const char *buf, size_t count)
609 {
610         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
611         int nr = sensor_attr->index - 1;
612         struct i2c_client *client = to_i2c_client(dev);
613         struct w83792d_data *data = i2c_get_clientdata(client);
614         u32 val;
615         u8 fan_cfg_tmp, cfg1_tmp, cfg2_tmp, cfg3_tmp, cfg4_tmp;
616
617         val = simple_strtoul(buf, NULL, 10);
618         if (val < 1 || val > 3)
619                 return -EINVAL;
620
621         mutex_lock(&data->update_lock);
622         switch (val) {
623         case 1:
624                 data->pwmenable[nr] = 0; /* manual mode */
625                 break;
626         case 2:
627                 data->pwmenable[nr] = 2; /* Smart Fan II */
628                 break;
629         case 3:
630                 data->pwmenable[nr] = 1; /* thermal cruise/Smart Fan I */
631                 break;
632         }
633         cfg1_tmp = data->pwmenable[0];
634         cfg2_tmp = (data->pwmenable[1]) << 2;
635         cfg3_tmp = (data->pwmenable[2]) << 4;
636         cfg4_tmp = w83792d_read_value(client,W83792D_REG_FAN_CFG) & 0xc0;
637         fan_cfg_tmp = ((cfg4_tmp | cfg3_tmp) | cfg2_tmp) | cfg1_tmp;
638         w83792d_write_value(client, W83792D_REG_FAN_CFG, fan_cfg_tmp);
639         mutex_unlock(&data->update_lock);
640
641         return count;
642 }
643
644 static ssize_t
645 show_pwm_mode(struct device *dev, struct device_attribute *attr,
646                         char *buf)
647 {
648         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
649         int nr = sensor_attr->index;
650         struct w83792d_data *data = w83792d_update_device(dev);
651         return sprintf(buf, "%d\n", data->pwm[nr] >> 7);
652 }
653
654 static ssize_t
655 store_pwm_mode(struct device *dev, struct device_attribute *attr,
656                         const char *buf, size_t count)
657 {
658         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
659         int nr = sensor_attr->index;
660         struct i2c_client *client = to_i2c_client(dev);
661         struct w83792d_data *data = i2c_get_clientdata(client);
662         u32 val;
663
664         val = simple_strtoul(buf, NULL, 10);
665         if (val != 0 && val != 1)
666                 return -EINVAL;
667
668         mutex_lock(&data->update_lock);
669         data->pwm[nr] = w83792d_read_value(client, W83792D_REG_PWM[nr]);
670         if (val) {                      /* PWM mode */
671                 data->pwm[nr] |= 0x80;
672         } else {                        /* DC mode */
673                 data->pwm[nr] &= 0x7f;
674         }
675         w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]);
676         mutex_unlock(&data->update_lock);
677
678         return count;
679 }
680
681 static ssize_t
682 show_regs_chassis(struct device *dev, struct device_attribute *attr,
683                         char *buf)
684 {
685         struct w83792d_data *data = w83792d_update_device(dev);
686         return sprintf(buf, "%d\n", data->chassis);
687 }
688
689 static ssize_t
690 show_chassis_clear(struct device *dev, struct device_attribute *attr, char *buf)
691 {
692         struct w83792d_data *data = w83792d_update_device(dev);
693         return sprintf(buf, "%d\n", data->chassis_clear);
694 }
695
696 static ssize_t
697 store_chassis_clear(struct device *dev, struct device_attribute *attr,
698                         const char *buf, size_t count)
699 {
700         struct i2c_client *client = to_i2c_client(dev);
701         struct w83792d_data *data = i2c_get_clientdata(client);
702         u32 val;
703         u8 temp1 = 0, temp2 = 0;
704
705         val = simple_strtoul(buf, NULL, 10);
706         mutex_lock(&data->update_lock);
707         data->chassis_clear = SENSORS_LIMIT(val, 0 ,1);
708         temp1 = ((data->chassis_clear) << 7) & 0x80;
709         temp2 = w83792d_read_value(client,
710                 W83792D_REG_CHASSIS_CLR) & 0x7f;
711         w83792d_write_value(client, W83792D_REG_CHASSIS_CLR, temp1 | temp2);
712         mutex_unlock(&data->update_lock);
713
714         return count;
715 }
716
717 /* For Smart Fan I / Thermal Cruise */
718 static ssize_t
719 show_thermal_cruise(struct device *dev, struct device_attribute *attr,
720                         char *buf)
721 {
722         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
723         int nr = sensor_attr->index;
724         struct w83792d_data *data = w83792d_update_device(dev);
725         return sprintf(buf, "%ld\n", (long)data->thermal_cruise[nr-1]);
726 }
727
728 static ssize_t
729 store_thermal_cruise(struct device *dev, struct device_attribute *attr,
730                         const char *buf, size_t count)
731 {
732         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
733         int nr = sensor_attr->index - 1;
734         struct i2c_client *client = to_i2c_client(dev);
735         struct w83792d_data *data = i2c_get_clientdata(client);
736         u32 val;
737         u8 target_tmp=0, target_mask=0;
738
739         val = simple_strtoul(buf, NULL, 10);
740         target_tmp = val;
741         target_tmp = target_tmp & 0x7f;
742         mutex_lock(&data->update_lock);
743         target_mask = w83792d_read_value(client, W83792D_REG_THERMAL[nr]) & 0x80;
744         data->thermal_cruise[nr] = SENSORS_LIMIT(target_tmp, 0, 255);
745         w83792d_write_value(client, W83792D_REG_THERMAL[nr],
746                 (data->thermal_cruise[nr]) | target_mask);
747         mutex_unlock(&data->update_lock);
748
749         return count;
750 }
751
752 /* For Smart Fan I/Thermal Cruise and Smart Fan II */
753 static ssize_t
754 show_tolerance(struct device *dev, struct device_attribute *attr,
755                 char *buf)
756 {
757         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
758         int nr = sensor_attr->index;
759         struct w83792d_data *data = w83792d_update_device(dev);
760         return sprintf(buf, "%ld\n", (long)data->tolerance[nr-1]);
761 }
762
763 static ssize_t
764 store_tolerance(struct device *dev, struct device_attribute *attr,
765                 const char *buf, size_t count)
766 {
767         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
768         int nr = sensor_attr->index - 1;
769         struct i2c_client *client = to_i2c_client(dev);
770         struct w83792d_data *data = i2c_get_clientdata(client);
771         u32 val;
772         u8 tol_tmp, tol_mask;
773
774         val = simple_strtoul(buf, NULL, 10);
775         mutex_lock(&data->update_lock);
776         tol_mask = w83792d_read_value(client,
777                 W83792D_REG_TOLERANCE[nr]) & ((nr == 1) ? 0x0f : 0xf0);
778         tol_tmp = SENSORS_LIMIT(val, 0, 15);
779         tol_tmp &= 0x0f;
780         data->tolerance[nr] = tol_tmp;
781         if (nr == 1) {
782                 tol_tmp <<= 4;
783         }
784         w83792d_write_value(client, W83792D_REG_TOLERANCE[nr],
785                 tol_mask | tol_tmp);
786         mutex_unlock(&data->update_lock);
787
788         return count;
789 }
790
791 /* For Smart Fan II */
792 static ssize_t
793 show_sf2_point(struct device *dev, struct device_attribute *attr,
794                 char *buf)
795 {
796         struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
797         int nr = sensor_attr->nr;
798         int index = sensor_attr->index;
799         struct w83792d_data *data = w83792d_update_device(dev);
800         return sprintf(buf, "%ld\n", (long)data->sf2_points[index-1][nr-1]);
801 }
802
803 static ssize_t
804 store_sf2_point(struct device *dev, struct device_attribute *attr,
805                 const char *buf, size_t count)
806 {
807         struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
808         int nr = sensor_attr->nr - 1;
809         int index = sensor_attr->index - 1;
810         struct i2c_client *client = to_i2c_client(dev);
811         struct w83792d_data *data = i2c_get_clientdata(client);
812         u32 val;
813         u8 mask_tmp = 0;
814
815         val = simple_strtoul(buf, NULL, 10);
816         mutex_lock(&data->update_lock);
817         data->sf2_points[index][nr] = SENSORS_LIMIT(val, 0, 127);
818         mask_tmp = w83792d_read_value(client,
819                                         W83792D_REG_POINTS[index][nr]) & 0x80;
820         w83792d_write_value(client, W83792D_REG_POINTS[index][nr],
821                 mask_tmp|data->sf2_points[index][nr]);
822         mutex_unlock(&data->update_lock);
823
824         return count;
825 }
826
827 static ssize_t
828 show_sf2_level(struct device *dev, struct device_attribute *attr,
829                 char *buf)
830 {
831         struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
832         int nr = sensor_attr->nr;
833         int index = sensor_attr->index;
834         struct w83792d_data *data = w83792d_update_device(dev);
835         return sprintf(buf, "%d\n",
836                         (((data->sf2_levels[index-1][nr]) * 100) / 15));
837 }
838
839 static ssize_t
840 store_sf2_level(struct device *dev, struct device_attribute *attr,
841                 const char *buf, size_t count)
842 {
843         struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
844         int nr = sensor_attr->nr;
845         int index = sensor_attr->index - 1;
846         struct i2c_client *client = to_i2c_client(dev);
847         struct w83792d_data *data = i2c_get_clientdata(client);
848         u32 val;
849         u8 mask_tmp=0, level_tmp=0;
850
851         val = simple_strtoul(buf, NULL, 10);
852         mutex_lock(&data->update_lock);
853         data->sf2_levels[index][nr] = SENSORS_LIMIT((val * 15) / 100, 0, 15);
854         mask_tmp = w83792d_read_value(client, W83792D_REG_LEVELS[index][nr])
855                 & ((nr==3) ? 0xf0 : 0x0f);
856         if (nr==3) {
857                 level_tmp = data->sf2_levels[index][nr];
858         } else {
859                 level_tmp = data->sf2_levels[index][nr] << 4;
860         }
861         w83792d_write_value(client, W83792D_REG_LEVELS[index][nr], level_tmp | mask_tmp);
862         mutex_unlock(&data->update_lock);
863
864         return count;
865 }
866
867 /* This function is called when:
868      * w83792d_driver is inserted (when this module is loaded), for each
869        available adapter
870      * when a new adapter is inserted (and w83792d_driver is still present) */
871 static int
872 w83792d_attach_adapter(struct i2c_adapter *adapter)
873 {
874         if (!(adapter->class & I2C_CLASS_HWMON))
875                 return 0;
876         return i2c_probe(adapter, &addr_data, w83792d_detect);
877 }
878
879
880 static int
881 w83792d_create_subclient(struct i2c_adapter *adapter,
882                                 struct i2c_client *new_client, int addr,
883                                 struct i2c_client **sub_cli)
884 {
885         int err;
886         struct i2c_client *sub_client;
887
888         (*sub_cli) = sub_client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
889         if (!(sub_client)) {
890                 return -ENOMEM;
891         }
892         sub_client->addr = 0x48 + addr;
893         i2c_set_clientdata(sub_client, NULL);
894         sub_client->adapter = adapter;
895         sub_client->driver = &w83792d_driver;
896         sub_client->flags = 0;
897         strlcpy(sub_client->name, "w83792d subclient", I2C_NAME_SIZE);
898         if ((err = i2c_attach_client(sub_client))) {
899                 dev_err(&new_client->dev, "subclient registration "
900                         "at address 0x%x failed\n", sub_client->addr);
901                 kfree(sub_client);
902                 return err;
903         }
904         return 0;
905 }
906
907
908 static int
909 w83792d_detect_subclients(struct i2c_adapter *adapter, int address, int kind,
910                 struct i2c_client *new_client)
911 {
912         int i, id, err;
913         u8 val;
914         struct w83792d_data *data = i2c_get_clientdata(new_client);
915
916         id = i2c_adapter_id(adapter);
917         if (force_subclients[0] == id && force_subclients[1] == address) {
918                 for (i = 2; i <= 3; i++) {
919                         if (force_subclients[i] < 0x48 ||
920                             force_subclients[i] > 0x4f) {
921                                 dev_err(&new_client->dev, "invalid subclient "
922                                         "address %d; must be 0x48-0x4f\n",
923                                         force_subclients[i]);
924                                 err = -ENODEV;
925                                 goto ERROR_SC_0;
926                         }
927                 }
928                 w83792d_write_value(new_client, W83792D_REG_I2C_SUBADDR,
929                                         (force_subclients[2] & 0x07) |
930                                         ((force_subclients[3] & 0x07) << 4));
931         }
932
933         val = w83792d_read_value(new_client, W83792D_REG_I2C_SUBADDR);
934         if (!(val & 0x08)) {
935                 err = w83792d_create_subclient(adapter, new_client, val & 0x7,
936                                                 &data->lm75[0]);
937                 if (err < 0)
938                         goto ERROR_SC_0;
939         }
940         if (!(val & 0x80)) {
941                 if ((data->lm75[0] != NULL) &&
942                         ((val & 0x7) == ((val >> 4) & 0x7))) {
943                         dev_err(&new_client->dev, "duplicate addresses 0x%x, "
944                                 "use force_subclient\n", data->lm75[0]->addr);
945                         err = -ENODEV;
946                         goto ERROR_SC_1;
947                 }
948                 err = w83792d_create_subclient(adapter, new_client,
949                                                 (val >> 4) & 0x7, &data->lm75[1]);
950                 if (err < 0)
951                         goto ERROR_SC_1;
952         }
953
954         return 0;
955
956 /* Undo inits in case of errors */
957
958 ERROR_SC_1:
959         if (data->lm75[0] != NULL) {
960                 i2c_detach_client(data->lm75[0]);
961                 kfree(data->lm75[0]);
962         }
963 ERROR_SC_0:
964         return err;
965 }
966
967 static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0);
968 static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1);
969 static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2);
970 static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3);
971 static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 4);
972 static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 5);
973 static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 6);
974 static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 7);
975 static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_in, NULL, 8);
976 static SENSOR_DEVICE_ATTR(in0_min, S_IWUSR | S_IRUGO,
977                         show_in_min, store_in_min, 0);
978 static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO,
979                         show_in_min, store_in_min, 1);
980 static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO,
981                         show_in_min, store_in_min, 2);
982 static SENSOR_DEVICE_ATTR(in3_min, S_IWUSR | S_IRUGO,
983                         show_in_min, store_in_min, 3);
984 static SENSOR_DEVICE_ATTR(in4_min, S_IWUSR | S_IRUGO,
985                         show_in_min, store_in_min, 4);
986 static SENSOR_DEVICE_ATTR(in5_min, S_IWUSR | S_IRUGO,
987                         show_in_min, store_in_min, 5);
988 static SENSOR_DEVICE_ATTR(in6_min, S_IWUSR | S_IRUGO,
989                         show_in_min, store_in_min, 6);
990 static SENSOR_DEVICE_ATTR(in7_min, S_IWUSR | S_IRUGO,
991                         show_in_min, store_in_min, 7);
992 static SENSOR_DEVICE_ATTR(in8_min, S_IWUSR | S_IRUGO,
993                         show_in_min, store_in_min, 8);
994 static SENSOR_DEVICE_ATTR(in0_max, S_IWUSR | S_IRUGO,
995                         show_in_max, store_in_max, 0);
996 static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO,
997                         show_in_max, store_in_max, 1);
998 static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO,
999                         show_in_max, store_in_max, 2);
1000 static SENSOR_DEVICE_ATTR(in3_max, S_IWUSR | S_IRUGO,
1001                         show_in_max, store_in_max, 3);
1002 static SENSOR_DEVICE_ATTR(in4_max, S_IWUSR | S_IRUGO,
1003                         show_in_max, store_in_max, 4);
1004 static SENSOR_DEVICE_ATTR(in5_max, S_IWUSR | S_IRUGO,
1005                         show_in_max, store_in_max, 5);
1006 static SENSOR_DEVICE_ATTR(in6_max, S_IWUSR | S_IRUGO,
1007                         show_in_max, store_in_max, 6);
1008 static SENSOR_DEVICE_ATTR(in7_max, S_IWUSR | S_IRUGO,
1009                         show_in_max, store_in_max, 7);
1010 static SENSOR_DEVICE_ATTR(in8_max, S_IWUSR | S_IRUGO,
1011                         show_in_max, store_in_max, 8);
1012 static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp1, NULL, 0, 0);
1013 static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp23, NULL, 0, 0);
1014 static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp23, NULL, 1, 0);
1015 static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR,
1016                         show_temp1, store_temp1, 0, 1);
1017 static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp23,
1018                         store_temp23, 0, 2);
1019 static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp23,
1020                         store_temp23, 1, 2);
1021 static SENSOR_DEVICE_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR,
1022                         show_temp1, store_temp1, 0, 2);
1023 static SENSOR_DEVICE_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR,
1024                         show_temp23, store_temp23, 0, 4);
1025 static SENSOR_DEVICE_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR,
1026                         show_temp23, store_temp23, 1, 4);
1027 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
1028 static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
1029 static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
1030 static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 2);
1031 static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 3);
1032 static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 4);
1033 static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 5);
1034 static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 6);
1035 static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 7);
1036 static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 8);
1037 static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 9);
1038 static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 10);
1039 static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 11);
1040 static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 12);
1041 static SENSOR_DEVICE_ATTR(fan7_alarm, S_IRUGO, show_alarm, NULL, 15);
1042 static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 19);
1043 static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 20);
1044 static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 21);
1045 static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 22);
1046 static SENSOR_DEVICE_ATTR(fan6_alarm, S_IRUGO, show_alarm, NULL, 23);
1047 static DEVICE_ATTR(chassis, S_IRUGO, show_regs_chassis, NULL);
1048 static DEVICE_ATTR(chassis_clear, S_IRUGO | S_IWUSR,
1049                         show_chassis_clear, store_chassis_clear);
1050 static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0);
1051 static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1);
1052 static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2);
1053 static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO,
1054                         show_pwmenable, store_pwmenable, 1);
1055 static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO,
1056                         show_pwmenable, store_pwmenable, 2);
1057 static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO,
1058                         show_pwmenable, store_pwmenable, 3);
1059 static SENSOR_DEVICE_ATTR(pwm1_mode, S_IWUSR | S_IRUGO,
1060                         show_pwm_mode, store_pwm_mode, 0);
1061 static SENSOR_DEVICE_ATTR(pwm2_mode, S_IWUSR | S_IRUGO,
1062                         show_pwm_mode, store_pwm_mode, 1);
1063 static SENSOR_DEVICE_ATTR(pwm3_mode, S_IWUSR | S_IRUGO,
1064                         show_pwm_mode, store_pwm_mode, 2);
1065 static SENSOR_DEVICE_ATTR(tolerance1, S_IWUSR | S_IRUGO,
1066                         show_tolerance, store_tolerance, 1);
1067 static SENSOR_DEVICE_ATTR(tolerance2, S_IWUSR | S_IRUGO,
1068                         show_tolerance, store_tolerance, 2);
1069 static SENSOR_DEVICE_ATTR(tolerance3, S_IWUSR | S_IRUGO,
1070                         show_tolerance, store_tolerance, 3);
1071 static SENSOR_DEVICE_ATTR(thermal_cruise1, S_IWUSR | S_IRUGO,
1072                         show_thermal_cruise, store_thermal_cruise, 1);
1073 static SENSOR_DEVICE_ATTR(thermal_cruise2, S_IWUSR | S_IRUGO,
1074                         show_thermal_cruise, store_thermal_cruise, 2);
1075 static SENSOR_DEVICE_ATTR(thermal_cruise3, S_IWUSR | S_IRUGO,
1076                         show_thermal_cruise, store_thermal_cruise, 3);
1077 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan1, S_IRUGO | S_IWUSR,
1078                         show_sf2_point, store_sf2_point, 1, 1);
1079 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan1, S_IRUGO | S_IWUSR,
1080                         show_sf2_point, store_sf2_point, 2, 1);
1081 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan1, S_IRUGO | S_IWUSR,
1082                         show_sf2_point, store_sf2_point, 3, 1);
1083 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan1, S_IRUGO | S_IWUSR,
1084                         show_sf2_point, store_sf2_point, 4, 1);
1085 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan2, S_IRUGO | S_IWUSR,
1086                         show_sf2_point, store_sf2_point, 1, 2);
1087 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan2, S_IRUGO | S_IWUSR,
1088                         show_sf2_point, store_sf2_point, 2, 2);
1089 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan2, S_IRUGO | S_IWUSR,
1090                         show_sf2_point, store_sf2_point, 3, 2);
1091 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan2, S_IRUGO | S_IWUSR,
1092                         show_sf2_point, store_sf2_point, 4, 2);
1093 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan3, S_IRUGO | S_IWUSR,
1094                         show_sf2_point, store_sf2_point, 1, 3);
1095 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan3, S_IRUGO | S_IWUSR,
1096                         show_sf2_point, store_sf2_point, 2, 3);
1097 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan3, S_IRUGO | S_IWUSR,
1098                         show_sf2_point, store_sf2_point, 3, 3);
1099 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan3, S_IRUGO | S_IWUSR,
1100                         show_sf2_point, store_sf2_point, 4, 3);
1101 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan1, S_IRUGO | S_IWUSR,
1102                         show_sf2_level, store_sf2_level, 1, 1);
1103 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan1, S_IRUGO | S_IWUSR,
1104                         show_sf2_level, store_sf2_level, 2, 1);
1105 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan1, S_IRUGO | S_IWUSR,
1106                         show_sf2_level, store_sf2_level, 3, 1);
1107 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan2, S_IRUGO | S_IWUSR,
1108                         show_sf2_level, store_sf2_level, 1, 2);
1109 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan2, S_IRUGO | S_IWUSR,
1110                         show_sf2_level, store_sf2_level, 2, 2);
1111 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan2, S_IRUGO | S_IWUSR,
1112                         show_sf2_level, store_sf2_level, 3, 2);
1113 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan3, S_IRUGO | S_IWUSR,
1114                         show_sf2_level, store_sf2_level, 1, 3);
1115 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan3, S_IRUGO | S_IWUSR,
1116                         show_sf2_level, store_sf2_level, 2, 3);
1117 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan3, S_IRUGO | S_IWUSR,
1118                         show_sf2_level, store_sf2_level, 3, 3);
1119 static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 1);
1120 static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 2);
1121 static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 3);
1122 static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 4);
1123 static SENSOR_DEVICE_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 5);
1124 static SENSOR_DEVICE_ATTR(fan6_input, S_IRUGO, show_fan, NULL, 6);
1125 static SENSOR_DEVICE_ATTR(fan7_input, S_IRUGO, show_fan, NULL, 7);
1126 static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO,
1127                         show_fan_min, store_fan_min, 1);
1128 static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO,
1129                         show_fan_min, store_fan_min, 2);
1130 static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO,
1131                         show_fan_min, store_fan_min, 3);
1132 static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO,
1133                         show_fan_min, store_fan_min, 4);
1134 static SENSOR_DEVICE_ATTR(fan5_min, S_IWUSR | S_IRUGO,
1135                         show_fan_min, store_fan_min, 5);
1136 static SENSOR_DEVICE_ATTR(fan6_min, S_IWUSR | S_IRUGO,
1137                         show_fan_min, store_fan_min, 6);
1138 static SENSOR_DEVICE_ATTR(fan7_min, S_IWUSR | S_IRUGO,
1139                         show_fan_min, store_fan_min, 7);
1140 static SENSOR_DEVICE_ATTR(fan1_div, S_IWUSR | S_IRUGO,
1141                         show_fan_div, store_fan_div, 1);
1142 static SENSOR_DEVICE_ATTR(fan2_div, S_IWUSR | S_IRUGO,
1143                         show_fan_div, store_fan_div, 2);
1144 static SENSOR_DEVICE_ATTR(fan3_div, S_IWUSR | S_IRUGO,
1145                         show_fan_div, store_fan_div, 3);
1146 static SENSOR_DEVICE_ATTR(fan4_div, S_IWUSR | S_IRUGO,
1147                         show_fan_div, store_fan_div, 4);
1148 static SENSOR_DEVICE_ATTR(fan5_div, S_IWUSR | S_IRUGO,
1149                         show_fan_div, store_fan_div, 5);
1150 static SENSOR_DEVICE_ATTR(fan6_div, S_IWUSR | S_IRUGO,
1151                         show_fan_div, store_fan_div, 6);
1152 static SENSOR_DEVICE_ATTR(fan7_div, S_IWUSR | S_IRUGO,
1153                         show_fan_div, store_fan_div, 7);
1154
1155 static struct attribute *w83792d_attributes_fan[4][5] = {
1156         {
1157                 &sensor_dev_attr_fan4_input.dev_attr.attr,
1158                 &sensor_dev_attr_fan4_min.dev_attr.attr,
1159                 &sensor_dev_attr_fan4_div.dev_attr.attr,
1160                 &sensor_dev_attr_fan4_alarm.dev_attr.attr,
1161                 NULL
1162         }, {
1163                 &sensor_dev_attr_fan5_input.dev_attr.attr,
1164                 &sensor_dev_attr_fan5_min.dev_attr.attr,
1165                 &sensor_dev_attr_fan5_div.dev_attr.attr,
1166                 &sensor_dev_attr_fan5_alarm.dev_attr.attr,
1167                 NULL
1168         }, {
1169                 &sensor_dev_attr_fan6_input.dev_attr.attr,
1170                 &sensor_dev_attr_fan6_min.dev_attr.attr,
1171                 &sensor_dev_attr_fan6_div.dev_attr.attr,
1172                 &sensor_dev_attr_fan6_alarm.dev_attr.attr,
1173                 NULL
1174         }, {
1175                 &sensor_dev_attr_fan7_input.dev_attr.attr,
1176                 &sensor_dev_attr_fan7_min.dev_attr.attr,
1177                 &sensor_dev_attr_fan7_div.dev_attr.attr,
1178                 &sensor_dev_attr_fan7_alarm.dev_attr.attr,
1179                 NULL
1180         }
1181 };
1182
1183 static const struct attribute_group w83792d_group_fan[4] = {
1184         { .attrs = w83792d_attributes_fan[0] },
1185         { .attrs = w83792d_attributes_fan[1] },
1186         { .attrs = w83792d_attributes_fan[2] },
1187         { .attrs = w83792d_attributes_fan[3] },
1188 };
1189
1190 static struct attribute *w83792d_attributes[] = {
1191         &sensor_dev_attr_in0_input.dev_attr.attr,
1192         &sensor_dev_attr_in0_max.dev_attr.attr,
1193         &sensor_dev_attr_in0_min.dev_attr.attr,
1194         &sensor_dev_attr_in1_input.dev_attr.attr,
1195         &sensor_dev_attr_in1_max.dev_attr.attr,
1196         &sensor_dev_attr_in1_min.dev_attr.attr,
1197         &sensor_dev_attr_in2_input.dev_attr.attr,
1198         &sensor_dev_attr_in2_max.dev_attr.attr,
1199         &sensor_dev_attr_in2_min.dev_attr.attr,
1200         &sensor_dev_attr_in3_input.dev_attr.attr,
1201         &sensor_dev_attr_in3_max.dev_attr.attr,
1202         &sensor_dev_attr_in3_min.dev_attr.attr,
1203         &sensor_dev_attr_in4_input.dev_attr.attr,
1204         &sensor_dev_attr_in4_max.dev_attr.attr,
1205         &sensor_dev_attr_in4_min.dev_attr.attr,
1206         &sensor_dev_attr_in5_input.dev_attr.attr,
1207         &sensor_dev_attr_in5_max.dev_attr.attr,
1208         &sensor_dev_attr_in5_min.dev_attr.attr,
1209         &sensor_dev_attr_in6_input.dev_attr.attr,
1210         &sensor_dev_attr_in6_max.dev_attr.attr,
1211         &sensor_dev_attr_in6_min.dev_attr.attr,
1212         &sensor_dev_attr_in7_input.dev_attr.attr,
1213         &sensor_dev_attr_in7_max.dev_attr.attr,
1214         &sensor_dev_attr_in7_min.dev_attr.attr,
1215         &sensor_dev_attr_in8_input.dev_attr.attr,
1216         &sensor_dev_attr_in8_max.dev_attr.attr,
1217         &sensor_dev_attr_in8_min.dev_attr.attr,
1218         &sensor_dev_attr_in0_alarm.dev_attr.attr,
1219         &sensor_dev_attr_in1_alarm.dev_attr.attr,
1220         &sensor_dev_attr_in2_alarm.dev_attr.attr,
1221         &sensor_dev_attr_in3_alarm.dev_attr.attr,
1222         &sensor_dev_attr_in4_alarm.dev_attr.attr,
1223         &sensor_dev_attr_in5_alarm.dev_attr.attr,
1224         &sensor_dev_attr_in6_alarm.dev_attr.attr,
1225         &sensor_dev_attr_in7_alarm.dev_attr.attr,
1226         &sensor_dev_attr_in8_alarm.dev_attr.attr,
1227         &sensor_dev_attr_temp1_input.dev_attr.attr,
1228         &sensor_dev_attr_temp1_max.dev_attr.attr,
1229         &sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
1230         &sensor_dev_attr_temp2_input.dev_attr.attr,
1231         &sensor_dev_attr_temp2_max.dev_attr.attr,
1232         &sensor_dev_attr_temp2_max_hyst.dev_attr.attr,
1233         &sensor_dev_attr_temp3_input.dev_attr.attr,
1234         &sensor_dev_attr_temp3_max.dev_attr.attr,
1235         &sensor_dev_attr_temp3_max_hyst.dev_attr.attr,
1236         &sensor_dev_attr_temp1_alarm.dev_attr.attr,
1237         &sensor_dev_attr_temp2_alarm.dev_attr.attr,
1238         &sensor_dev_attr_temp3_alarm.dev_attr.attr,
1239         &sensor_dev_attr_pwm1.dev_attr.attr,
1240         &sensor_dev_attr_pwm1_mode.dev_attr.attr,
1241         &sensor_dev_attr_pwm1_enable.dev_attr.attr,
1242         &sensor_dev_attr_pwm2.dev_attr.attr,
1243         &sensor_dev_attr_pwm2_mode.dev_attr.attr,
1244         &sensor_dev_attr_pwm2_enable.dev_attr.attr,
1245         &sensor_dev_attr_pwm3.dev_attr.attr,
1246         &sensor_dev_attr_pwm3_mode.dev_attr.attr,
1247         &sensor_dev_attr_pwm3_enable.dev_attr.attr,
1248         &dev_attr_alarms.attr,
1249         &dev_attr_chassis.attr,
1250         &dev_attr_chassis_clear.attr,
1251         &sensor_dev_attr_tolerance1.dev_attr.attr,
1252         &sensor_dev_attr_thermal_cruise1.dev_attr.attr,
1253         &sensor_dev_attr_tolerance2.dev_attr.attr,
1254         &sensor_dev_attr_thermal_cruise2.dev_attr.attr,
1255         &sensor_dev_attr_tolerance3.dev_attr.attr,
1256         &sensor_dev_attr_thermal_cruise3.dev_attr.attr,
1257         &sensor_dev_attr_sf2_point1_fan1.dev_attr.attr,
1258         &sensor_dev_attr_sf2_point2_fan1.dev_attr.attr,
1259         &sensor_dev_attr_sf2_point3_fan1.dev_attr.attr,
1260         &sensor_dev_attr_sf2_point4_fan1.dev_attr.attr,
1261         &sensor_dev_attr_sf2_point1_fan2.dev_attr.attr,
1262         &sensor_dev_attr_sf2_point2_fan2.dev_attr.attr,
1263         &sensor_dev_attr_sf2_point3_fan2.dev_attr.attr,
1264         &sensor_dev_attr_sf2_point4_fan2.dev_attr.attr,
1265         &sensor_dev_attr_sf2_point1_fan3.dev_attr.attr,
1266         &sensor_dev_attr_sf2_point2_fan3.dev_attr.attr,
1267         &sensor_dev_attr_sf2_point3_fan3.dev_attr.attr,
1268         &sensor_dev_attr_sf2_point4_fan3.dev_attr.attr,
1269         &sensor_dev_attr_sf2_level1_fan1.dev_attr.attr,
1270         &sensor_dev_attr_sf2_level2_fan1.dev_attr.attr,
1271         &sensor_dev_attr_sf2_level3_fan1.dev_attr.attr,
1272         &sensor_dev_attr_sf2_level1_fan2.dev_attr.attr,
1273         &sensor_dev_attr_sf2_level2_fan2.dev_attr.attr,
1274         &sensor_dev_attr_sf2_level3_fan2.dev_attr.attr,
1275         &sensor_dev_attr_sf2_level1_fan3.dev_attr.attr,
1276         &sensor_dev_attr_sf2_level2_fan3.dev_attr.attr,
1277         &sensor_dev_attr_sf2_level3_fan3.dev_attr.attr,
1278         &sensor_dev_attr_fan1_input.dev_attr.attr,
1279         &sensor_dev_attr_fan1_min.dev_attr.attr,
1280         &sensor_dev_attr_fan1_div.dev_attr.attr,
1281         &sensor_dev_attr_fan1_alarm.dev_attr.attr,
1282         &sensor_dev_attr_fan2_input.dev_attr.attr,
1283         &sensor_dev_attr_fan2_min.dev_attr.attr,
1284         &sensor_dev_attr_fan2_div.dev_attr.attr,
1285         &sensor_dev_attr_fan2_alarm.dev_attr.attr,
1286         &sensor_dev_attr_fan3_input.dev_attr.attr,
1287         &sensor_dev_attr_fan3_min.dev_attr.attr,
1288         &sensor_dev_attr_fan3_div.dev_attr.attr,
1289         &sensor_dev_attr_fan3_alarm.dev_attr.attr,
1290         NULL
1291 };
1292
1293 static const struct attribute_group w83792d_group = {
1294         .attrs = w83792d_attributes,
1295 };
1296
1297 static int
1298 w83792d_detect(struct i2c_adapter *adapter, int address, int kind)
1299 {
1300         int i = 0, val1 = 0, val2;
1301         struct i2c_client *client;
1302         struct device *dev;
1303         struct w83792d_data *data;
1304         int err = 0;
1305         const char *client_name = "";
1306
1307         if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
1308                 goto ERROR0;
1309         }
1310
1311         /* OK. For now, we presume we have a valid client. We now create the
1312            client structure, even though we cannot fill it completely yet.
1313            But it allows us to access w83792d_{read,write}_value. */
1314
1315         if (!(data = kzalloc(sizeof(struct w83792d_data), GFP_KERNEL))) {
1316                 err = -ENOMEM;
1317                 goto ERROR0;
1318         }
1319
1320         client = &data->client;
1321         dev = &client->dev;
1322         i2c_set_clientdata(client, data);
1323         client->addr = address;
1324         client->adapter = adapter;
1325         client->driver = &w83792d_driver;
1326         client->flags = 0;
1327
1328         /* Now, we do the remaining detection. */
1329
1330         /* The w83792d may be stuck in some other bank than bank 0. This may
1331            make reading other information impossible. Specify a force=... or
1332            force_*=... parameter, and the Winbond will be reset to the right
1333            bank. */
1334         if (kind < 0) {
1335                 if (w83792d_read_value(client, W83792D_REG_CONFIG) & 0x80) {
1336                         dev_dbg(dev, "Detection failed at step 1\n");
1337                         goto ERROR1;
1338                 }
1339                 val1 = w83792d_read_value(client, W83792D_REG_BANK);
1340                 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN);
1341                 /* Check for Winbond ID if in bank 0 */
1342                 if (!(val1 & 0x07)) {  /* is Bank0 */
1343                         if (((!(val1 & 0x80)) && (val2 != 0xa3)) ||
1344                              ((val1 & 0x80) && (val2 != 0x5c))) {
1345                                 dev_dbg(dev, "Detection failed at step 2\n");
1346                                 goto ERROR1;
1347                         }
1348                 }
1349                 /* If Winbond chip, address of chip and W83792D_REG_I2C_ADDR
1350                    should match */
1351                 if (w83792d_read_value(client,
1352                                         W83792D_REG_I2C_ADDR) != address) {
1353                         dev_dbg(dev, "Detection failed at step 3\n");
1354                         goto ERROR1;
1355                 }
1356         }
1357
1358         /* We have either had a force parameter, or we have already detected the
1359            Winbond. Put it now into bank 0 and Vendor ID High Byte */
1360         w83792d_write_value(client,
1361                             W83792D_REG_BANK,
1362                             (w83792d_read_value(client,
1363                                 W83792D_REG_BANK) & 0x78) | 0x80);
1364
1365         /* Determine the chip type. */
1366         if (kind <= 0) {
1367                 /* get vendor ID */
1368                 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN);
1369                 if (val2 != 0x5c) {  /* the vendor is NOT Winbond */
1370                         goto ERROR1;
1371                 }
1372                 val1 = w83792d_read_value(client, W83792D_REG_WCHIPID);
1373                 if (val1 == 0x7a) {
1374                         kind = w83792d;
1375                 } else {
1376                         if (kind == 0)
1377                                         dev_warn(dev,
1378                                         "w83792d: Ignoring 'force' parameter for"
1379                                         " unknown chip at adapter %d, address"
1380                                         " 0x%02x\n", i2c_adapter_id(adapter),
1381                                         address);
1382                         goto ERROR1;
1383                 }
1384         }
1385
1386         if (kind == w83792d) {
1387                 client_name = "w83792d";
1388         } else {
1389                 dev_err(dev, "w83792d: Internal error: unknown kind (%d)?!?\n",
1390                         kind);
1391                 goto ERROR1;
1392         }
1393
1394         /* Fill in the remaining client fields and put into the global list */
1395         strlcpy(client->name, client_name, I2C_NAME_SIZE);
1396         data->type = kind;
1397
1398         data->valid = 0;
1399         mutex_init(&data->update_lock);
1400
1401         /* Tell the I2C layer a new client has arrived */
1402         if ((err = i2c_attach_client(client)))
1403                 goto ERROR1;
1404
1405         if ((err = w83792d_detect_subclients(adapter, address,
1406                         kind, client)))
1407                 goto ERROR2;
1408
1409         /* Initialize the chip */
1410         w83792d_init_client(client);
1411
1412         /* A few vars need to be filled upon startup */
1413         for (i = 0; i < 7; i++) {
1414                 data->fan_min[i] = w83792d_read_value(client,
1415                                         W83792D_REG_FAN_MIN[i]);
1416         }
1417
1418         /* Register sysfs hooks */
1419         if ((err = sysfs_create_group(&dev->kobj, &w83792d_group)))
1420                 goto ERROR3;
1421
1422         /* Read GPIO enable register to check if pins for fan 4,5 are used as
1423            GPIO */
1424         val1 = w83792d_read_value(client, W83792D_REG_GPIO_EN);
1425
1426         if (!(val1 & 0x40))
1427                 if ((err = sysfs_create_group(&dev->kobj,
1428                                               &w83792d_group_fan[0])))
1429                         goto exit_remove_files;
1430
1431         if (!(val1 & 0x20))
1432                 if ((err = sysfs_create_group(&dev->kobj,
1433                                               &w83792d_group_fan[1])))
1434                         goto exit_remove_files;
1435
1436         val1 = w83792d_read_value(client, W83792D_REG_PIN);
1437         if (val1 & 0x40)
1438                 if ((err = sysfs_create_group(&dev->kobj,
1439                                               &w83792d_group_fan[2])))
1440                         goto exit_remove_files;
1441
1442         if (val1 & 0x04)
1443                 if ((err = sysfs_create_group(&dev->kobj,
1444                                               &w83792d_group_fan[3])))
1445                         goto exit_remove_files;
1446
1447         data->hwmon_dev = hwmon_device_register(dev);
1448         if (IS_ERR(data->hwmon_dev)) {
1449                 err = PTR_ERR(data->hwmon_dev);
1450                 goto exit_remove_files;
1451         }
1452
1453         return 0;
1454
1455 exit_remove_files:
1456         sysfs_remove_group(&dev->kobj, &w83792d_group);
1457         for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++)
1458                 sysfs_remove_group(&dev->kobj, &w83792d_group_fan[i]);
1459 ERROR3:
1460         if (data->lm75[0] != NULL) {
1461                 i2c_detach_client(data->lm75[0]);
1462                 kfree(data->lm75[0]);
1463         }
1464         if (data->lm75[1] != NULL) {
1465                 i2c_detach_client(data->lm75[1]);
1466                 kfree(data->lm75[1]);
1467         }
1468 ERROR2:
1469         i2c_detach_client(client);
1470 ERROR1:
1471         kfree(data);
1472 ERROR0:
1473         return err;
1474 }
1475
1476 static int
1477 w83792d_detach_client(struct i2c_client *client)
1478 {
1479         struct w83792d_data *data = i2c_get_clientdata(client);
1480         int err, i;
1481
1482         /* main client */
1483         if (data) {
1484                 hwmon_device_unregister(data->hwmon_dev);
1485                 sysfs_remove_group(&client->dev.kobj, &w83792d_group);
1486                 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++)
1487                         sysfs_remove_group(&client->dev.kobj,
1488                                            &w83792d_group_fan[i]);
1489         }
1490
1491         if ((err = i2c_detach_client(client)))
1492                 return err;
1493
1494         /* main client */
1495         if (data)
1496                 kfree(data);
1497         /* subclient */
1498         else
1499                 kfree(client);
1500
1501         return 0;
1502 }
1503
1504 static void
1505 w83792d_init_client(struct i2c_client *client)
1506 {
1507         u8 temp2_cfg, temp3_cfg, vid_in_b;
1508
1509         if (init) {
1510                 w83792d_write_value(client, W83792D_REG_CONFIG, 0x80);
1511         }
1512         /* Clear the bit6 of W83792D_REG_VID_IN_B(set it into 0):
1513            W83792D_REG_VID_IN_B bit6 = 0: the high/low limit of
1514              vin0/vin1 can be modified by user;
1515            W83792D_REG_VID_IN_B bit6 = 1: the high/low limit of
1516              vin0/vin1 auto-updated, can NOT be modified by user. */
1517         vid_in_b = w83792d_read_value(client, W83792D_REG_VID_IN_B);
1518         w83792d_write_value(client, W83792D_REG_VID_IN_B,
1519                             vid_in_b & 0xbf);
1520
1521         temp2_cfg = w83792d_read_value(client, W83792D_REG_TEMP2_CONFIG);
1522         temp3_cfg = w83792d_read_value(client, W83792D_REG_TEMP3_CONFIG);
1523         w83792d_write_value(client, W83792D_REG_TEMP2_CONFIG,
1524                                 temp2_cfg & 0xe6);
1525         w83792d_write_value(client, W83792D_REG_TEMP3_CONFIG,
1526                                 temp3_cfg & 0xe6);
1527
1528         /* Start monitoring */
1529         w83792d_write_value(client, W83792D_REG_CONFIG,
1530                             (w83792d_read_value(client,
1531                                                 W83792D_REG_CONFIG) & 0xf7)
1532                             | 0x01);
1533 }
1534
1535 static struct w83792d_data *w83792d_update_device(struct device *dev)
1536 {
1537         struct i2c_client *client = to_i2c_client(dev);
1538         struct w83792d_data *data = i2c_get_clientdata(client);
1539         int i, j;
1540         u8 reg_array_tmp[4], reg_tmp;
1541
1542         mutex_lock(&data->update_lock);
1543
1544         if (time_after
1545             (jiffies - data->last_updated, (unsigned long) (HZ * 3))
1546             || time_before(jiffies, data->last_updated) || !data->valid) {
1547                 dev_dbg(dev, "Starting device update\n");
1548
1549                 /* Update the voltages measured value and limits */
1550                 for (i = 0; i < 9; i++) {
1551                         data->in[i] = w83792d_read_value(client,
1552                                                 W83792D_REG_IN[i]);
1553                         data->in_max[i] = w83792d_read_value(client,
1554                                                 W83792D_REG_IN_MAX[i]);
1555                         data->in_min[i] = w83792d_read_value(client,
1556                                                 W83792D_REG_IN_MIN[i]);
1557                 }
1558                 data->low_bits = w83792d_read_value(client,
1559                                                 W83792D_REG_LOW_BITS1) +
1560                                  (w83792d_read_value(client,
1561                                                 W83792D_REG_LOW_BITS2) << 8);
1562                 for (i = 0; i < 7; i++) {
1563                         /* Update the Fan measured value and limits */
1564                         data->fan[i] = w83792d_read_value(client,
1565                                                 W83792D_REG_FAN[i]);
1566                         data->fan_min[i] = w83792d_read_value(client,
1567                                                 W83792D_REG_FAN_MIN[i]);
1568                         /* Update the PWM/DC Value and PWM/DC flag */
1569                         data->pwm[i] = w83792d_read_value(client,
1570                                                 W83792D_REG_PWM[i]);
1571                 }
1572
1573                 reg_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG);
1574                 data->pwmenable[0] = reg_tmp & 0x03;
1575                 data->pwmenable[1] = (reg_tmp>>2) & 0x03;
1576                 data->pwmenable[2] = (reg_tmp>>4) & 0x03;
1577
1578                 for (i = 0; i < 3; i++) {
1579                         data->temp1[i] = w83792d_read_value(client,
1580                                                         W83792D_REG_TEMP1[i]);
1581                 }
1582                 for (i = 0; i < 2; i++) {
1583                         for (j = 0; j < 6; j++) {
1584                                 data->temp_add[i][j] = w83792d_read_value(
1585                                         client,W83792D_REG_TEMP_ADD[i][j]);
1586                         }
1587                 }
1588
1589                 /* Update the Fan Divisor */
1590                 for (i = 0; i < 4; i++) {
1591                         reg_array_tmp[i] = w83792d_read_value(client,
1592                                                         W83792D_REG_FAN_DIV[i]);
1593                 }
1594                 data->fan_div[0] = reg_array_tmp[0] & 0x07;
1595                 data->fan_div[1] = (reg_array_tmp[0] >> 4) & 0x07;
1596                 data->fan_div[2] = reg_array_tmp[1] & 0x07;
1597                 data->fan_div[3] = (reg_array_tmp[1] >> 4) & 0x07;
1598                 data->fan_div[4] = reg_array_tmp[2] & 0x07;
1599                 data->fan_div[5] = (reg_array_tmp[2] >> 4) & 0x07;
1600                 data->fan_div[6] = reg_array_tmp[3] & 0x07;
1601
1602                 /* Update the realtime status */
1603                 data->alarms = w83792d_read_value(client, W83792D_REG_ALARM1) +
1604                         (w83792d_read_value(client, W83792D_REG_ALARM2) << 8) +
1605                         (w83792d_read_value(client, W83792D_REG_ALARM3) << 16);
1606
1607                 /* Update CaseOpen status and it's CLR_CHS. */
1608                 data->chassis = (w83792d_read_value(client,
1609                         W83792D_REG_CHASSIS) >> 5) & 0x01;
1610                 data->chassis_clear = (w83792d_read_value(client,
1611                         W83792D_REG_CHASSIS_CLR) >> 7) & 0x01;
1612
1613                 /* Update Thermal Cruise/Smart Fan I target value */
1614                 for (i = 0; i < 3; i++) {
1615                         data->thermal_cruise[i] =
1616                                 w83792d_read_value(client,
1617                                 W83792D_REG_THERMAL[i]) & 0x7f;
1618                 }
1619
1620                 /* Update Smart Fan I/II tolerance */
1621                 reg_tmp = w83792d_read_value(client, W83792D_REG_TOLERANCE[0]);
1622                 data->tolerance[0] = reg_tmp & 0x0f;
1623                 data->tolerance[1] = (reg_tmp >> 4) & 0x0f;
1624                 data->tolerance[2] = w83792d_read_value(client,
1625                                         W83792D_REG_TOLERANCE[2]) & 0x0f;
1626
1627                 /* Update Smart Fan II temperature points */
1628                 for (i = 0; i < 3; i++) {
1629                         for (j = 0; j < 4; j++) {
1630                                 data->sf2_points[i][j] = w83792d_read_value(
1631                                         client,W83792D_REG_POINTS[i][j]) & 0x7f;
1632                         }
1633                 }
1634
1635                 /* Update Smart Fan II duty cycle levels */
1636                 for (i = 0; i < 3; i++) {
1637                         reg_tmp = w83792d_read_value(client,
1638                                                 W83792D_REG_LEVELS[i][0]);
1639                         data->sf2_levels[i][0] = reg_tmp & 0x0f;
1640                         data->sf2_levels[i][1] = (reg_tmp >> 4) & 0x0f;
1641                         reg_tmp = w83792d_read_value(client,
1642                                                 W83792D_REG_LEVELS[i][2]);
1643                         data->sf2_levels[i][2] = (reg_tmp >> 4) & 0x0f;
1644                         data->sf2_levels[i][3] = reg_tmp & 0x0f;
1645                 }
1646
1647                 data->last_updated = jiffies;
1648                 data->valid = 1;
1649         }
1650
1651         mutex_unlock(&data->update_lock);
1652
1653 #ifdef DEBUG
1654         w83792d_print_debug(data, dev);
1655 #endif
1656
1657         return data;
1658 }
1659
1660 #ifdef DEBUG
1661 static void w83792d_print_debug(struct w83792d_data *data, struct device *dev)
1662 {
1663         int i=0, j=0;
1664         dev_dbg(dev, "==========The following is the debug message...========\n");
1665         dev_dbg(dev, "9 set of Voltages: =====>\n");
1666         for (i=0; i<9; i++) {
1667                 dev_dbg(dev, "vin[%d] is: 0x%x\n", i, data->in[i]);
1668                 dev_dbg(dev, "vin[%d] max is: 0x%x\n", i, data->in_max[i]);
1669                 dev_dbg(dev, "vin[%d] min is: 0x%x\n", i, data->in_min[i]);
1670         }
1671         dev_dbg(dev, "Low Bit1 is: 0x%x\n", data->low_bits & 0xff);
1672         dev_dbg(dev, "Low Bit2 is: 0x%x\n", data->low_bits >> 8);
1673         dev_dbg(dev, "7 set of Fan Counts and Duty Cycles: =====>\n");
1674         for (i=0; i<7; i++) {
1675                 dev_dbg(dev, "fan[%d] is: 0x%x\n", i, data->fan[i]);
1676                 dev_dbg(dev, "fan[%d] min is: 0x%x\n", i, data->fan_min[i]);
1677                 dev_dbg(dev, "pwm[%d]     is: 0x%x\n", i, data->pwm[i]);
1678         }
1679         dev_dbg(dev, "3 set of Temperatures: =====>\n");
1680         for (i=0; i<3; i++) {
1681                 dev_dbg(dev, "temp1[%d] is: 0x%x\n", i, data->temp1[i]);
1682         }
1683
1684         for (i=0; i<2; i++) {
1685                 for (j=0; j<6; j++) {
1686                         dev_dbg(dev, "temp_add[%d][%d] is: 0x%x\n", i, j,
1687                                                         data->temp_add[i][j]);
1688                 }
1689         }
1690
1691         for (i=0; i<7; i++) {
1692                 dev_dbg(dev, "fan_div[%d] is: 0x%x\n", i, data->fan_div[i]);
1693         }
1694         dev_dbg(dev, "==========End of the debug message...==================\n");
1695         dev_dbg(dev, "\n");
1696 }
1697 #endif
1698
1699 static int __init
1700 sensors_w83792d_init(void)
1701 {
1702         return i2c_add_driver(&w83792d_driver);
1703 }
1704
1705 static void __exit
1706 sensors_w83792d_exit(void)
1707 {
1708         i2c_del_driver(&w83792d_driver);
1709 }
1710
1711 MODULE_AUTHOR("Chunhao Huang @ Winbond <DZShen@Winbond.com.tw>");
1712 MODULE_DESCRIPTION("W83792AD/D driver for linux-2.6");
1713 MODULE_LICENSE("GPL");
1714
1715 module_init(sensors_w83792d_init);
1716 module_exit(sensors_w83792d_exit);
1717