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[/] [test_project/] [trunk/] [linux_sd_driver/] [drivers/] [hwmon/] [w83792d.c] - Blame information for rev 78

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1 62 marcus.erl
/*
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 unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f, I2C_CLIENT_END };
50
 
51
/* Insmod parameters */
52
I2C_CLIENT_INSMOD_1(w83792d);
53
I2C_CLIENT_MODULE_PARM(force_subclients, "List of subclient addresses: "
54
                        "{bus, clientaddr, subclientaddr1, subclientaddr2}");
55
 
56
static int init;
57
module_param(init, bool, 0);
58
MODULE_PARM_DESC(init, "Set to one to force chip initialization");
59
 
60
/* The W83792D registers */
61
static const u8 W83792D_REG_IN[9] = {
62
        0x20,   /* Vcore A in DataSheet */
63
        0x21,   /* Vcore B in DataSheet */
64
        0x22,   /* VIN0 in DataSheet */
65
        0x23,   /* VIN1 in DataSheet */
66
        0x24,   /* VIN2 in DataSheet */
67
        0x25,   /* VIN3 in DataSheet */
68
        0x26,   /* 5VCC in DataSheet */
69
        0xB0,   /* 5VSB in DataSheet */
70
        0xB1    /* VBAT in DataSheet */
71
};
72
#define W83792D_REG_LOW_BITS1 0x3E  /* Low Bits I in DataSheet */
73
#define W83792D_REG_LOW_BITS2 0x3F  /* Low Bits II in DataSheet */
74
static const u8 W83792D_REG_IN_MAX[9] = {
75
        0x2B,   /* Vcore A High Limit in DataSheet */
76
        0x2D,   /* Vcore B High Limit in DataSheet */
77
        0x2F,   /* VIN0 High Limit in DataSheet */
78
        0x31,   /* VIN1 High Limit in DataSheet */
79
        0x33,   /* VIN2 High Limit in DataSheet */
80
        0x35,   /* VIN3 High Limit in DataSheet */
81
        0x37,   /* 5VCC High Limit in DataSheet */
82
        0xB4,   /* 5VSB High Limit in DataSheet */
83
        0xB6    /* VBAT High Limit in DataSheet */
84
};
85
static const u8 W83792D_REG_IN_MIN[9] = {
86
        0x2C,   /* Vcore A Low Limit in DataSheet */
87
        0x2E,   /* Vcore B Low Limit in DataSheet */
88
        0x30,   /* VIN0 Low Limit in DataSheet */
89
        0x32,   /* VIN1 Low Limit in DataSheet */
90
        0x34,   /* VIN2 Low Limit in DataSheet */
91
        0x36,   /* VIN3 Low Limit in DataSheet */
92
        0x38,   /* 5VCC Low Limit in DataSheet */
93
        0xB5,   /* 5VSB Low Limit in DataSheet */
94
        0xB7    /* VBAT Low Limit in DataSheet */
95
};
96
static const u8 W83792D_REG_FAN[7] = {
97
        0x28,   /* FAN 1 Count in DataSheet */
98
        0x29,   /* FAN 2 Count in DataSheet */
99
        0x2A,   /* FAN 3 Count in DataSheet */
100
        0xB8,   /* FAN 4 Count in DataSheet */
101
        0xB9,   /* FAN 5 Count in DataSheet */
102
        0xBA,   /* FAN 6 Count in DataSheet */
103
        0xBE    /* FAN 7 Count in DataSheet */
104
};
105
static const u8 W83792D_REG_FAN_MIN[7] = {
106
        0x3B,   /* FAN 1 Count Low Limit in DataSheet */
107
        0x3C,   /* FAN 2 Count Low Limit in DataSheet */
108
        0x3D,   /* FAN 3 Count Low Limit in DataSheet */
109
        0xBB,   /* FAN 4 Count Low Limit in DataSheet */
110
        0xBC,   /* FAN 5 Count Low Limit in DataSheet */
111
        0xBD,   /* FAN 6 Count Low Limit in DataSheet */
112
        0xBF    /* FAN 7 Count Low Limit in DataSheet */
113
};
114
#define W83792D_REG_FAN_CFG 0x84        /* FAN Configuration in DataSheet */
115
static const u8 W83792D_REG_FAN_DIV[4] = {
116
        0x47,   /* contains FAN2 and FAN1 Divisor */
117
        0x5B,   /* contains FAN4 and FAN3 Divisor */
118
        0x5C,   /* contains FAN6 and FAN5 Divisor */
119
        0x9E    /* contains FAN7 Divisor. */
120
};
121
static const u8 W83792D_REG_PWM[7] = {
122
        0x81,   /* FAN 1 Duty Cycle, be used to control */
123
        0x83,   /* FAN 2 Duty Cycle, be used to control */
124
        0x94,   /* FAN 3 Duty Cycle, be used to control */
125
        0xA3,   /* FAN 4 Duty Cycle, be used to control */
126
        0xA4,   /* FAN 5 Duty Cycle, be used to control */
127
        0xA5,   /* FAN 6 Duty Cycle, be used to control */
128
        0xA6    /* FAN 7 Duty Cycle, be used to control */
129
};
130
#define W83792D_REG_BANK                0x4E
131
#define W83792D_REG_TEMP2_CONFIG        0xC2
132
#define W83792D_REG_TEMP3_CONFIG        0xCA
133
 
134
static const u8 W83792D_REG_TEMP1[3] = {
135
        0x27,   /* TEMP 1 in DataSheet */
136
        0x39,   /* TEMP 1 Over in DataSheet */
137
        0x3A,   /* TEMP 1 Hyst in DataSheet */
138
};
139
 
140
static const u8 W83792D_REG_TEMP_ADD[2][6] = {
141
        { 0xC0,         /* TEMP 2 in DataSheet */
142
          0xC1,         /* TEMP 2(0.5 deg) in DataSheet */
143
          0xC5,         /* TEMP 2 Over High part in DataSheet */
144
          0xC6,         /* TEMP 2 Over Low part in DataSheet */
145
          0xC3,         /* TEMP 2 Thyst High part in DataSheet */
146
          0xC4 },       /* TEMP 2 Thyst Low part in DataSheet */
147
        { 0xC8,         /* TEMP 3 in DataSheet */
148
          0xC9,         /* TEMP 3(0.5 deg) in DataSheet */
149
          0xCD,         /* TEMP 3 Over High part in DataSheet */
150
          0xCE,         /* TEMP 3 Over Low part in DataSheet */
151
          0xCB,         /* TEMP 3 Thyst High part in DataSheet */
152
          0xCC }        /* TEMP 3 Thyst Low part in DataSheet */
153
};
154
 
155
static const u8 W83792D_REG_THERMAL[3] = {
156
        0x85,   /* SmartFanI: Fan1 target value */
157
        0x86,   /* SmartFanI: Fan2 target value */
158
        0x96    /* SmartFanI: Fan3 target value */
159
};
160
 
161
static const u8 W83792D_REG_TOLERANCE[3] = {
162
        0x87,   /* (bit3-0)SmartFan Fan1 tolerance */
163
        0x87,   /* (bit7-4)SmartFan Fan2 tolerance */
164
        0x97    /* (bit3-0)SmartFan Fan3 tolerance */
165
};
166
 
167
static const u8 W83792D_REG_POINTS[3][4] = {
168
        { 0x85,         /* SmartFanII: Fan1 temp point 1 */
169
          0xE3,         /* SmartFanII: Fan1 temp point 2 */
170
          0xE4,         /* SmartFanII: Fan1 temp point 3 */
171
          0xE5 },       /* SmartFanII: Fan1 temp point 4 */
172
        { 0x86,         /* SmartFanII: Fan2 temp point 1 */
173
          0xE6,         /* SmartFanII: Fan2 temp point 2 */
174
          0xE7,         /* SmartFanII: Fan2 temp point 3 */
175
          0xE8 },       /* SmartFanII: Fan2 temp point 4 */
176
        { 0x96,         /* SmartFanII: Fan3 temp point 1 */
177
          0xE9,         /* SmartFanII: Fan3 temp point 2 */
178
          0xEA,         /* SmartFanII: Fan3 temp point 3 */
179
          0xEB }        /* SmartFanII: Fan3 temp point 4 */
180
};
181
 
182
static const u8 W83792D_REG_LEVELS[3][4] = {
183
        { 0x88,         /* (bit3-0) SmartFanII: Fan1 Non-Stop */
184
          0x88,         /* (bit7-4) SmartFanII: Fan1 Level 1 */
185
          0xE0,         /* (bit7-4) SmartFanII: Fan1 Level 2 */
186
          0xE0 },       /* (bit3-0) SmartFanII: Fan1 Level 3 */
187
        { 0x89,         /* (bit3-0) SmartFanII: Fan2 Non-Stop */
188
          0x89,         /* (bit7-4) SmartFanII: Fan2 Level 1 */
189
          0xE1,         /* (bit7-4) SmartFanII: Fan2 Level 2 */
190
          0xE1 },       /* (bit3-0) SmartFanII: Fan2 Level 3 */
191
        { 0x98,         /* (bit3-0) SmartFanII: Fan3 Non-Stop */
192
          0x98,         /* (bit7-4) SmartFanII: Fan3 Level 1 */
193
          0xE2,         /* (bit7-4) SmartFanII: Fan3 Level 2 */
194
          0xE2 }        /* (bit3-0) SmartFanII: Fan3 Level 3 */
195
};
196
 
197
#define W83792D_REG_GPIO_EN             0x1A
198
#define W83792D_REG_CONFIG              0x40
199
#define W83792D_REG_VID_FANDIV          0x47
200
#define W83792D_REG_CHIPID              0x49
201
#define W83792D_REG_WCHIPID             0x58
202
#define W83792D_REG_CHIPMAN             0x4F
203
#define W83792D_REG_PIN                 0x4B
204
#define W83792D_REG_I2C_SUBADDR         0x4A
205
 
206
#define W83792D_REG_ALARM1 0xA9         /* realtime status register1 */
207
#define W83792D_REG_ALARM2 0xAA         /* realtime status register2 */
208
#define W83792D_REG_ALARM3 0xAB         /* realtime status register3 */
209
#define W83792D_REG_CHASSIS 0x42        /* Bit 5: Case Open status bit */
210
#define W83792D_REG_CHASSIS_CLR 0x44    /* Bit 7: Case Open CLR_CHS/Reset bit */
211
 
212
/* control in0/in1 's limit modifiability */
213
#define W83792D_REG_VID_IN_B            0x17
214
 
215
#define W83792D_REG_VBAT                0x5D
216
#define W83792D_REG_I2C_ADDR            0x48
217
 
218
/* Conversions. Rounding and limit checking is only done on the TO_REG
219
   variants. Note that you should be a bit careful with which arguments
220
   these macros are called: arguments may be evaluated more than once.
221
   Fixing this is just not worth it. */
222
#define IN_FROM_REG(nr,val) (((nr)<=1)?(val*2): \
223
                                ((((nr)==6)||((nr)==7))?(val*6):(val*4)))
224
#define IN_TO_REG(nr,val) (((nr)<=1)?(val/2): \
225
                                ((((nr)==6)||((nr)==7))?(val/6):(val/4)))
226
 
227
static inline u8
228
FAN_TO_REG(long rpm, int div)
229
{
230
        if (rpm == 0)
231
                return 255;
232
        rpm = SENSORS_LIMIT(rpm, 1, 1000000);
233
        return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 254);
234
}
235
 
236
#define FAN_FROM_REG(val,div)   ((val) == 0   ? -1 : \
237
                                ((val) == 255 ? 0 : \
238
                                                1350000 / ((val) * (div))))
239
 
240
/* for temp1 */
241
#define TEMP1_TO_REG(val)       (SENSORS_LIMIT(((val) < 0 ? (val)+0x100*1000 \
242
                                        : (val)) / 1000, 0, 0xff))
243
#define TEMP1_FROM_REG(val)     (((val) & 0x80 ? (val)-0x100 : (val)) * 1000)
244
/* for temp2 and temp3, because they need addtional resolution */
245
#define TEMP_ADD_FROM_REG(val1, val2) \
246
        ((((val1) & 0x80 ? (val1)-0x100 \
247
                : (val1)) * 1000) + ((val2 & 0x80) ? 500 : 0))
248
#define TEMP_ADD_TO_REG_HIGH(val) \
249
        (SENSORS_LIMIT(((val) < 0 ? (val)+0x100*1000 \
250
                        : (val)) / 1000, 0, 0xff))
251
#define TEMP_ADD_TO_REG_LOW(val)        ((val%1000) ? 0x80 : 0x00)
252
 
253
#define DIV_FROM_REG(val)               (1 << (val))
254
 
255
static inline u8
256
DIV_TO_REG(long val)
257
{
258
        int i;
259
        val = SENSORS_LIMIT(val, 1, 128) >> 1;
260
        for (i = 0; i < 7; i++) {
261
                if (val == 0)
262
                        break;
263
                val >>= 1;
264
        }
265
        return ((u8) i);
266
}
267
 
268
struct w83792d_data {
269
        struct i2c_client client;
270
        struct device *hwmon_dev;
271
        enum chips type;
272
 
273
        struct mutex update_lock;
274
        char valid;             /* !=0 if following fields are valid */
275
        unsigned long last_updated;     /* In jiffies */
276
 
277
        /* array of 2 pointers to subclients */
278
        struct i2c_client *lm75[2];
279
 
280
        u8 in[9];               /* Register value */
281
        u8 in_max[9];           /* Register value */
282
        u8 in_min[9];           /* Register value */
283
        u16 low_bits;           /* Additional resolution to voltage in6-0 */
284
        u8 fan[7];              /* Register value */
285
        u8 fan_min[7];          /* Register value */
286
        u8 temp1[3];            /* current, over, thyst */
287
        u8 temp_add[2][6];      /* Register value */
288
        u8 fan_div[7];          /* Register encoding, shifted right */
289
        u8 pwm[7];              /* We only consider the first 3 set of pwm,
290
                                   although 792 chip has 7 set of pwm. */
291
        u8 pwmenable[3];
292
        u32 alarms;             /* realtime status register encoding,combined */
293
        u8 chassis;             /* Chassis status */
294
        u8 chassis_clear;       /* CLR_CHS, clear chassis intrusion detection */
295
        u8 thermal_cruise[3];   /* Smart FanI: Fan1,2,3 target value */
296
        u8 tolerance[3];        /* Fan1,2,3 tolerance(Smart Fan I/II) */
297
        u8 sf2_points[3][4];    /* Smart FanII: Fan1,2,3 temperature points */
298
        u8 sf2_levels[3][4];    /* Smart FanII: Fan1,2,3 duty cycle levels */
299
};
300
 
301
static int w83792d_attach_adapter(struct i2c_adapter *adapter);
302
static int w83792d_detect(struct i2c_adapter *adapter, int address, int kind);
303
static int w83792d_detach_client(struct i2c_client *client);
304
static struct w83792d_data *w83792d_update_device(struct device *dev);
305
 
306
#ifdef DEBUG
307
static void w83792d_print_debug(struct w83792d_data *data, struct device *dev);
308
#endif
309
 
310
static void w83792d_init_client(struct i2c_client *client);
311
 
312
static struct i2c_driver w83792d_driver = {
313
        .driver = {
314
                .name = "w83792d",
315
        },
316
        .attach_adapter = w83792d_attach_adapter,
317
        .detach_client = w83792d_detach_client,
318
};
319
 
320
static inline long in_count_from_reg(int nr, struct w83792d_data *data)
321
{
322
        /* in7 and in8 do not have low bits, but the formula still works */
323
        return ((data->in[nr] << 2) | ((data->low_bits >> (2 * nr)) & 0x03));
324
}
325
 
326
/* The SMBus locks itself. The Winbond W83792D chip has a bank register,
327
   but the driver only accesses registers in bank 0, so we don't have
328
   to switch banks and lock access between switches. */
329
static inline int w83792d_read_value(struct i2c_client *client, u8 reg)
330
{
331
        return i2c_smbus_read_byte_data(client, reg);
332
}
333
 
334
static inline int
335
w83792d_write_value(struct i2c_client *client, u8 reg, u8 value)
336
{
337
        return i2c_smbus_write_byte_data(client, reg, value);
338
}
339
 
340
/* following are the sysfs callback functions */
341
static ssize_t show_in(struct device *dev, struct device_attribute *attr,
342
                        char *buf)
343
{
344
        struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
345
        int nr = sensor_attr->index;
346
        struct w83792d_data *data = w83792d_update_device(dev);
347
        return sprintf(buf,"%ld\n", IN_FROM_REG(nr,(in_count_from_reg(nr, data))));
348
}
349
 
350
#define show_in_reg(reg) \
351
static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
352
                        char *buf) \
353
{ \
354
        struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
355
        int nr = sensor_attr->index; \
356
        struct w83792d_data *data = w83792d_update_device(dev); \
357
        return sprintf(buf,"%ld\n", (long)(IN_FROM_REG(nr, (data->reg[nr])*4))); \
358
}
359
 
360
show_in_reg(in_min);
361
show_in_reg(in_max);
362
 
363
#define store_in_reg(REG, reg) \
364
static ssize_t store_in_##reg (struct device *dev, \
365
                                struct device_attribute *attr, \
366
                                const char *buf, size_t count) \
367
{ \
368
        struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
369
        int nr = sensor_attr->index; \
370
        struct i2c_client *client = to_i2c_client(dev); \
371
        struct w83792d_data *data = i2c_get_clientdata(client); \
372
        u32 val; \
373
         \
374
        val = simple_strtoul(buf, NULL, 10); \
375
        mutex_lock(&data->update_lock); \
376
        data->in_##reg[nr] = SENSORS_LIMIT(IN_TO_REG(nr, val)/4, 0, 255); \
377
        w83792d_write_value(client, W83792D_REG_IN_##REG[nr], data->in_##reg[nr]); \
378
        mutex_unlock(&data->update_lock); \
379
         \
380
        return count; \
381
}
382
store_in_reg(MIN, min);
383
store_in_reg(MAX, max);
384
 
385
#define show_fan_reg(reg) \
386
static ssize_t show_##reg (struct device *dev, struct device_attribute *attr, \
387
                        char *buf) \
388
{ \
389
        struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
390
        int nr = sensor_attr->index - 1; \
391
        struct w83792d_data *data = w83792d_update_device(dev); \
392
        return sprintf(buf,"%d\n", \
393
                FAN_FROM_REG(data->reg[nr], DIV_FROM_REG(data->fan_div[nr]))); \
394
}
395
 
396
show_fan_reg(fan);
397
show_fan_reg(fan_min);
398
 
399
static ssize_t
400
store_fan_min(struct device *dev, struct device_attribute *attr,
401
                const char *buf, size_t count)
402
{
403
        struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
404
        int nr = sensor_attr->index - 1;
405
        struct i2c_client *client = to_i2c_client(dev);
406
        struct w83792d_data *data = i2c_get_clientdata(client);
407
        u32 val;
408
 
409
        val = simple_strtoul(buf, NULL, 10);
410
        mutex_lock(&data->update_lock);
411
        data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
412
        w83792d_write_value(client, W83792D_REG_FAN_MIN[nr],
413
                                data->fan_min[nr]);
414
        mutex_unlock(&data->update_lock);
415
 
416
        return count;
417
}
418
 
419
static ssize_t
420
show_fan_div(struct device *dev, struct device_attribute *attr,
421
                char *buf)
422
{
423
        struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
424
        int nr = sensor_attr->index;
425
        struct w83792d_data *data = w83792d_update_device(dev);
426
        return sprintf(buf, "%u\n", DIV_FROM_REG(data->fan_div[nr - 1]));
427
}
428
 
429
/* Note: we save and restore the fan minimum here, because its value is
430
   determined in part by the fan divisor.  This follows the principle of
431
   least surprise; the user doesn't expect the fan minimum to change just
432
   because the divisor changed. */
433
static ssize_t
434
store_fan_div(struct device *dev, struct device_attribute *attr,
435
                const char *buf, size_t count)
436
{
437
        struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
438
        int nr = sensor_attr->index - 1;
439
        struct i2c_client *client = to_i2c_client(dev);
440
        struct w83792d_data *data = i2c_get_clientdata(client);
441
        unsigned long min;
442
        /*u8 reg;*/
443
        u8 fan_div_reg = 0;
444
        u8 tmp_fan_div;
445
 
446
        /* Save fan_min */
447
        mutex_lock(&data->update_lock);
448
        min = FAN_FROM_REG(data->fan_min[nr],
449
                           DIV_FROM_REG(data->fan_div[nr]));
450
 
451
        data->fan_div[nr] = DIV_TO_REG(simple_strtoul(buf, NULL, 10));
452
 
453
        fan_div_reg = w83792d_read_value(client, W83792D_REG_FAN_DIV[nr >> 1]);
454
        fan_div_reg &= (nr & 0x01) ? 0x8f : 0xf8;
455
        tmp_fan_div = (nr & 0x01) ? (((data->fan_div[nr]) << 4) & 0x70)
456
                                        : ((data->fan_div[nr]) & 0x07);
457
        w83792d_write_value(client, W83792D_REG_FAN_DIV[nr >> 1],
458
                                        fan_div_reg | tmp_fan_div);
459
 
460
        /* Restore fan_min */
461
        data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
462
        w83792d_write_value(client, W83792D_REG_FAN_MIN[nr], data->fan_min[nr]);
463
        mutex_unlock(&data->update_lock);
464
 
465
        return count;
466
}
467
 
468
/* read/write the temperature1, includes measured value and limits */
469
 
470
static ssize_t show_temp1(struct device *dev, struct device_attribute *attr,
471
                                char *buf)
472
{
473
        struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
474
        int nr = sensor_attr->index;
475
        struct w83792d_data *data = w83792d_update_device(dev);
476
        return sprintf(buf, "%d\n", TEMP1_FROM_REG(data->temp1[nr]));
477
}
478
 
479
static ssize_t store_temp1(struct device *dev, struct device_attribute *attr,
480
                                const char *buf, size_t count)
481
{
482
        struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
483
        int nr = sensor_attr->index;
484
        struct i2c_client *client = to_i2c_client(dev);
485
        struct w83792d_data *data = i2c_get_clientdata(client);
486
        s32 val;
487
 
488
        val = simple_strtol(buf, NULL, 10);
489
        mutex_lock(&data->update_lock);
490
        data->temp1[nr] = TEMP1_TO_REG(val);
491
        w83792d_write_value(client, W83792D_REG_TEMP1[nr],
492
                data->temp1[nr]);
493
        mutex_unlock(&data->update_lock);
494
 
495
        return count;
496
}
497
 
498
/* read/write the temperature2-3, includes measured value and limits */
499
 
500
static ssize_t show_temp23(struct device *dev, struct device_attribute *attr,
501
                                char *buf)
502
{
503
        struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
504
        int nr = sensor_attr->nr;
505
        int index = sensor_attr->index;
506
        struct w83792d_data *data = w83792d_update_device(dev);
507
        return sprintf(buf,"%ld\n",
508
                (long)TEMP_ADD_FROM_REG(data->temp_add[nr][index],
509
                        data->temp_add[nr][index+1]));
510
}
511
 
512
static ssize_t store_temp23(struct device *dev, struct device_attribute *attr,
513
                                const char *buf, size_t count)
514
{
515
        struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
516
        int nr = sensor_attr->nr;
517
        int index = sensor_attr->index;
518
        struct i2c_client *client = to_i2c_client(dev);
519
        struct w83792d_data *data = i2c_get_clientdata(client);
520
        s32 val;
521
 
522
        val = simple_strtol(buf, NULL, 10);
523
        mutex_lock(&data->update_lock);
524
        data->temp_add[nr][index] = TEMP_ADD_TO_REG_HIGH(val);
525
        data->temp_add[nr][index+1] = TEMP_ADD_TO_REG_LOW(val);
526
        w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index],
527
                data->temp_add[nr][index]);
528
        w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index+1],
529
                data->temp_add[nr][index+1]);
530
        mutex_unlock(&data->update_lock);
531
 
532
        return count;
533
}
534
 
535
/* get reatime status of all sensors items: voltage, temp, fan */
536
static ssize_t
537
show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf)
538
{
539
        struct w83792d_data *data = w83792d_update_device(dev);
540
        return sprintf(buf, "%d\n", data->alarms);
541
}
542
 
543
static ssize_t show_alarm(struct device *dev,
544
                          struct device_attribute *attr, char *buf)
545
{
546
        struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
547
        int nr = sensor_attr->index;
548
        struct w83792d_data *data = w83792d_update_device(dev);
549
        return sprintf(buf, "%d\n", (data->alarms >> nr) & 1);
550
}
551
 
552
static ssize_t
553
show_pwm(struct device *dev, struct device_attribute *attr,
554
                char *buf)
555
{
556
        struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
557
        int nr = sensor_attr->index;
558
        struct w83792d_data *data = w83792d_update_device(dev);
559
        return sprintf(buf, "%d\n", (data->pwm[nr] & 0x0f) << 4);
560
}
561
 
562
static ssize_t
563
show_pwmenable(struct device *dev, struct device_attribute *attr,
564
                        char *buf)
565
{
566
        struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
567
        int nr = sensor_attr->index - 1;
568
        struct w83792d_data *data = w83792d_update_device(dev);
569
        long pwm_enable_tmp = 1;
570
 
571
        switch (data->pwmenable[nr]) {
572
        case 0:
573
                pwm_enable_tmp = 1; /* manual mode */
574
                break;
575
        case 1:
576
                pwm_enable_tmp = 3; /*thermal cruise/Smart Fan I */
577
                break;
578
        case 2:
579
                pwm_enable_tmp = 2; /* Smart Fan II */
580
                break;
581
        }
582
 
583
        return sprintf(buf, "%ld\n", pwm_enable_tmp);
584
}
585
 
586
static ssize_t
587
store_pwm(struct device *dev, struct device_attribute *attr,
588
                const char *buf, size_t count)
589
{
590
        struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
591
        int nr = sensor_attr->index;
592
        struct i2c_client *client = to_i2c_client(dev);
593
        struct w83792d_data *data = i2c_get_clientdata(client);
594
        u8 val = SENSORS_LIMIT(simple_strtoul(buf, NULL, 10), 0, 255) >> 4;
595
 
596
        mutex_lock(&data->update_lock);
597
        val |= w83792d_read_value(client, W83792D_REG_PWM[nr]) & 0xf0;
598
        data->pwm[nr] = val;
599
        w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]);
600
        mutex_unlock(&data->update_lock);
601
 
602
        return count;
603
}
604
 
605
static ssize_t
606
store_pwmenable(struct device *dev, struct device_attribute *attr,
607
                        const char *buf, size_t count)
608
{
609
        struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
610
        int nr = sensor_attr->index - 1;
611
        struct i2c_client *client = to_i2c_client(dev);
612
        struct w83792d_data *data = i2c_get_clientdata(client);
613
        u32 val;
614
        u8 fan_cfg_tmp, cfg1_tmp, cfg2_tmp, cfg3_tmp, cfg4_tmp;
615
 
616
        val = simple_strtoul(buf, NULL, 10);
617
        if (val < 1 || val > 3)
618
                return -EINVAL;
619
 
620
        mutex_lock(&data->update_lock);
621
        switch (val) {
622
        case 1:
623
                data->pwmenable[nr] = 0; /* manual mode */
624
                break;
625
        case 2:
626
                data->pwmenable[nr] = 2; /* Smart Fan II */
627
                break;
628
        case 3:
629
                data->pwmenable[nr] = 1; /* thermal cruise/Smart Fan I */
630
                break;
631
        }
632
        cfg1_tmp = data->pwmenable[0];
633
        cfg2_tmp = (data->pwmenable[1]) << 2;
634
        cfg3_tmp = (data->pwmenable[2]) << 4;
635
        cfg4_tmp = w83792d_read_value(client,W83792D_REG_FAN_CFG) & 0xc0;
636
        fan_cfg_tmp = ((cfg4_tmp | cfg3_tmp) | cfg2_tmp) | cfg1_tmp;
637
        w83792d_write_value(client, W83792D_REG_FAN_CFG, fan_cfg_tmp);
638
        mutex_unlock(&data->update_lock);
639
 
640
        return count;
641
}
642
 
643
static ssize_t
644
show_pwm_mode(struct device *dev, struct device_attribute *attr,
645
                        char *buf)
646
{
647
        struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
648
        int nr = sensor_attr->index;
649
        struct w83792d_data *data = w83792d_update_device(dev);
650
        return sprintf(buf, "%d\n", data->pwm[nr] >> 7);
651
}
652
 
653
static ssize_t
654
store_pwm_mode(struct device *dev, struct device_attribute *attr,
655
                        const char *buf, size_t count)
656
{
657
        struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
658
        int nr = sensor_attr->index;
659
        struct i2c_client *client = to_i2c_client(dev);
660
        struct w83792d_data *data = i2c_get_clientdata(client);
661
        u32 val;
662
 
663
        val = simple_strtoul(buf, NULL, 10);
664
        if (val != 0 && val != 1)
665
                return -EINVAL;
666
 
667
        mutex_lock(&data->update_lock);
668
        data->pwm[nr] = w83792d_read_value(client, W83792D_REG_PWM[nr]);
669
        if (val) {                      /* PWM mode */
670
                data->pwm[nr] |= 0x80;
671
        } else {                        /* DC mode */
672
                data->pwm[nr] &= 0x7f;
673
        }
674
        w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]);
675
        mutex_unlock(&data->update_lock);
676
 
677
        return count;
678
}
679
 
680
static ssize_t
681
show_regs_chassis(struct device *dev, struct device_attribute *attr,
682
                        char *buf)
683
{
684
        struct w83792d_data *data = w83792d_update_device(dev);
685
        return sprintf(buf, "%d\n", data->chassis);
686
}
687
 
688
static ssize_t
689
show_chassis_clear(struct device *dev, struct device_attribute *attr, char *buf)
690
{
691
        struct w83792d_data *data = w83792d_update_device(dev);
692
        return sprintf(buf, "%d\n", data->chassis_clear);
693
}
694
 
695
static ssize_t
696
store_chassis_clear(struct device *dev, struct device_attribute *attr,
697
                        const char *buf, size_t count)
698
{
699
        struct i2c_client *client = to_i2c_client(dev);
700
        struct w83792d_data *data = i2c_get_clientdata(client);
701
        u32 val;
702
        u8 temp1 = 0, temp2 = 0;
703
 
704
        val = simple_strtoul(buf, NULL, 10);
705
        mutex_lock(&data->update_lock);
706
        data->chassis_clear = SENSORS_LIMIT(val, 0 ,1);
707
        temp1 = ((data->chassis_clear) << 7) & 0x80;
708
        temp2 = w83792d_read_value(client,
709
                W83792D_REG_CHASSIS_CLR) & 0x7f;
710
        w83792d_write_value(client, W83792D_REG_CHASSIS_CLR, temp1 | temp2);
711
        mutex_unlock(&data->update_lock);
712
 
713
        return count;
714
}
715
 
716
/* For Smart Fan I / Thermal Cruise */
717
static ssize_t
718
show_thermal_cruise(struct device *dev, struct device_attribute *attr,
719
                        char *buf)
720
{
721
        struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
722
        int nr = sensor_attr->index;
723
        struct w83792d_data *data = w83792d_update_device(dev);
724
        return sprintf(buf, "%ld\n", (long)data->thermal_cruise[nr-1]);
725
}
726
 
727
static ssize_t
728
store_thermal_cruise(struct device *dev, struct device_attribute *attr,
729
                        const char *buf, size_t count)
730
{
731
        struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
732
        int nr = sensor_attr->index - 1;
733
        struct i2c_client *client = to_i2c_client(dev);
734
        struct w83792d_data *data = i2c_get_clientdata(client);
735
        u32 val;
736
        u8 target_tmp=0, target_mask=0;
737
 
738
        val = simple_strtoul(buf, NULL, 10);
739
        target_tmp = val;
740
        target_tmp = target_tmp & 0x7f;
741
        mutex_lock(&data->update_lock);
742
        target_mask = w83792d_read_value(client, W83792D_REG_THERMAL[nr]) & 0x80;
743
        data->thermal_cruise[nr] = SENSORS_LIMIT(target_tmp, 0, 255);
744
        w83792d_write_value(client, W83792D_REG_THERMAL[nr],
745
                (data->thermal_cruise[nr]) | target_mask);
746
        mutex_unlock(&data->update_lock);
747
 
748
        return count;
749
}
750
 
751
/* For Smart Fan I/Thermal Cruise and Smart Fan II */
752
static ssize_t
753
show_tolerance(struct device *dev, struct device_attribute *attr,
754
                char *buf)
755
{
756
        struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
757
        int nr = sensor_attr->index;
758
        struct w83792d_data *data = w83792d_update_device(dev);
759
        return sprintf(buf, "%ld\n", (long)data->tolerance[nr-1]);
760
}
761
 
762
static ssize_t
763
store_tolerance(struct device *dev, struct device_attribute *attr,
764
                const char *buf, size_t count)
765
{
766
        struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
767
        int nr = sensor_attr->index - 1;
768
        struct i2c_client *client = to_i2c_client(dev);
769
        struct w83792d_data *data = i2c_get_clientdata(client);
770
        u32 val;
771
        u8 tol_tmp, tol_mask;
772
 
773
        val = simple_strtoul(buf, NULL, 10);
774
        mutex_lock(&data->update_lock);
775
        tol_mask = w83792d_read_value(client,
776
                W83792D_REG_TOLERANCE[nr]) & ((nr == 1) ? 0x0f : 0xf0);
777
        tol_tmp = SENSORS_LIMIT(val, 0, 15);
778
        tol_tmp &= 0x0f;
779
        data->tolerance[nr] = tol_tmp;
780
        if (nr == 1) {
781
                tol_tmp <<= 4;
782
        }
783
        w83792d_write_value(client, W83792D_REG_TOLERANCE[nr],
784
                tol_mask | tol_tmp);
785
        mutex_unlock(&data->update_lock);
786
 
787
        return count;
788
}
789
 
790
/* For Smart Fan II */
791
static ssize_t
792
show_sf2_point(struct device *dev, struct device_attribute *attr,
793
                char *buf)
794
{
795
        struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
796
        int nr = sensor_attr->nr;
797
        int index = sensor_attr->index;
798
        struct w83792d_data *data = w83792d_update_device(dev);
799
        return sprintf(buf, "%ld\n", (long)data->sf2_points[index-1][nr-1]);
800
}
801
 
802
static ssize_t
803
store_sf2_point(struct device *dev, struct device_attribute *attr,
804
                const char *buf, size_t count)
805
{
806
        struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
807
        int nr = sensor_attr->nr - 1;
808
        int index = sensor_attr->index - 1;
809
        struct i2c_client *client = to_i2c_client(dev);
810
        struct w83792d_data *data = i2c_get_clientdata(client);
811
        u32 val;
812
        u8 mask_tmp = 0;
813
 
814
        val = simple_strtoul(buf, NULL, 10);
815
        mutex_lock(&data->update_lock);
816
        data->sf2_points[index][nr] = SENSORS_LIMIT(val, 0, 127);
817
        mask_tmp = w83792d_read_value(client,
818
                                        W83792D_REG_POINTS[index][nr]) & 0x80;
819
        w83792d_write_value(client, W83792D_REG_POINTS[index][nr],
820
                mask_tmp|data->sf2_points[index][nr]);
821
        mutex_unlock(&data->update_lock);
822
 
823
        return count;
824
}
825
 
826
static ssize_t
827
show_sf2_level(struct device *dev, struct device_attribute *attr,
828
                char *buf)
829
{
830
        struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
831
        int nr = sensor_attr->nr;
832
        int index = sensor_attr->index;
833
        struct w83792d_data *data = w83792d_update_device(dev);
834
        return sprintf(buf, "%d\n",
835
                        (((data->sf2_levels[index-1][nr]) * 100) / 15));
836
}
837
 
838
static ssize_t
839
store_sf2_level(struct device *dev, struct device_attribute *attr,
840
                const char *buf, size_t count)
841
{
842
        struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
843
        int nr = sensor_attr->nr;
844
        int index = sensor_attr->index - 1;
845
        struct i2c_client *client = to_i2c_client(dev);
846
        struct w83792d_data *data = i2c_get_clientdata(client);
847
        u32 val;
848
        u8 mask_tmp=0, level_tmp=0;
849
 
850
        val = simple_strtoul(buf, NULL, 10);
851
        mutex_lock(&data->update_lock);
852
        data->sf2_levels[index][nr] = SENSORS_LIMIT((val * 15) / 100, 0, 15);
853
        mask_tmp = w83792d_read_value(client, W83792D_REG_LEVELS[index][nr])
854
                & ((nr==3) ? 0xf0 : 0x0f);
855
        if (nr==3) {
856
                level_tmp = data->sf2_levels[index][nr];
857
        } else {
858
                level_tmp = data->sf2_levels[index][nr] << 4;
859
        }
860
        w83792d_write_value(client, W83792D_REG_LEVELS[index][nr], level_tmp | mask_tmp);
861
        mutex_unlock(&data->update_lock);
862
 
863
        return count;
864
}
865
 
866
/* This function is called when:
867
     * w83792d_driver is inserted (when this module is loaded), for each
868
       available adapter
869
     * when a new adapter is inserted (and w83792d_driver is still present) */
870
static int
871
w83792d_attach_adapter(struct i2c_adapter *adapter)
872
{
873
        if (!(adapter->class & I2C_CLASS_HWMON))
874
                return 0;
875
        return i2c_probe(adapter, &addr_data, w83792d_detect);
876
}
877
 
878
 
879
static int
880
w83792d_create_subclient(struct i2c_adapter *adapter,
881
                                struct i2c_client *new_client, int addr,
882
                                struct i2c_client **sub_cli)
883
{
884
        int err;
885
        struct i2c_client *sub_client;
886
 
887
        (*sub_cli) = sub_client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
888
        if (!(sub_client)) {
889
                return -ENOMEM;
890
        }
891
        sub_client->addr = 0x48 + addr;
892
        i2c_set_clientdata(sub_client, NULL);
893
        sub_client->adapter = adapter;
894
        sub_client->driver = &w83792d_driver;
895
        sub_client->flags = 0;
896
        strlcpy(sub_client->name, "w83792d subclient", I2C_NAME_SIZE);
897
        if ((err = i2c_attach_client(sub_client))) {
898
                dev_err(&new_client->dev, "subclient registration "
899
                        "at address 0x%x failed\n", sub_client->addr);
900
                kfree(sub_client);
901
                return err;
902
        }
903
        return 0;
904
}
905
 
906
 
907
static int
908
w83792d_detect_subclients(struct i2c_adapter *adapter, int address, int kind,
909
                struct i2c_client *new_client)
910
{
911
        int i, id, err;
912
        u8 val;
913
        struct w83792d_data *data = i2c_get_clientdata(new_client);
914
 
915
        id = i2c_adapter_id(adapter);
916
        if (force_subclients[0] == id && force_subclients[1] == address) {
917
                for (i = 2; i <= 3; i++) {
918
                        if (force_subclients[i] < 0x48 ||
919
                            force_subclients[i] > 0x4f) {
920
                                dev_err(&new_client->dev, "invalid subclient "
921
                                        "address %d; must be 0x48-0x4f\n",
922
                                        force_subclients[i]);
923
                                err = -ENODEV;
924
                                goto ERROR_SC_0;
925
                        }
926
                }
927
                w83792d_write_value(new_client, W83792D_REG_I2C_SUBADDR,
928
                                        (force_subclients[2] & 0x07) |
929
                                        ((force_subclients[3] & 0x07) << 4));
930
        }
931
 
932
        val = w83792d_read_value(new_client, W83792D_REG_I2C_SUBADDR);
933
        if (!(val & 0x08)) {
934
                err = w83792d_create_subclient(adapter, new_client, val & 0x7,
935
                                                &data->lm75[0]);
936
                if (err < 0)
937
                        goto ERROR_SC_0;
938
        }
939
        if (!(val & 0x80)) {
940
                if ((data->lm75[0] != NULL) &&
941
                        ((val & 0x7) == ((val >> 4) & 0x7))) {
942
                        dev_err(&new_client->dev, "duplicate addresses 0x%x, "
943
                                "use force_subclient\n", data->lm75[0]->addr);
944
                        err = -ENODEV;
945
                        goto ERROR_SC_1;
946
                }
947
                err = w83792d_create_subclient(adapter, new_client,
948
                                                (val >> 4) & 0x7, &data->lm75[1]);
949
                if (err < 0)
950
                        goto ERROR_SC_1;
951
        }
952
 
953
        return 0;
954
 
955
/* Undo inits in case of errors */
956
 
957
ERROR_SC_1:
958
        if (data->lm75[0] != NULL) {
959
                i2c_detach_client(data->lm75[0]);
960
                kfree(data->lm75[0]);
961
        }
962
ERROR_SC_0:
963
        return err;
964
}
965
 
966
static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0);
967
static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1);
968
static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2);
969
static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3);
970
static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 4);
971
static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 5);
972
static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 6);
973
static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 7);
974
static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_in, NULL, 8);
975
static SENSOR_DEVICE_ATTR(in0_min, S_IWUSR | S_IRUGO,
976
                        show_in_min, store_in_min, 0);
977
static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO,
978
                        show_in_min, store_in_min, 1);
979
static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO,
980
                        show_in_min, store_in_min, 2);
981
static SENSOR_DEVICE_ATTR(in3_min, S_IWUSR | S_IRUGO,
982
                        show_in_min, store_in_min, 3);
983
static SENSOR_DEVICE_ATTR(in4_min, S_IWUSR | S_IRUGO,
984
                        show_in_min, store_in_min, 4);
985
static SENSOR_DEVICE_ATTR(in5_min, S_IWUSR | S_IRUGO,
986
                        show_in_min, store_in_min, 5);
987
static SENSOR_DEVICE_ATTR(in6_min, S_IWUSR | S_IRUGO,
988
                        show_in_min, store_in_min, 6);
989
static SENSOR_DEVICE_ATTR(in7_min, S_IWUSR | S_IRUGO,
990
                        show_in_min, store_in_min, 7);
991
static SENSOR_DEVICE_ATTR(in8_min, S_IWUSR | S_IRUGO,
992
                        show_in_min, store_in_min, 8);
993
static SENSOR_DEVICE_ATTR(in0_max, S_IWUSR | S_IRUGO,
994
                        show_in_max, store_in_max, 0);
995
static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO,
996
                        show_in_max, store_in_max, 1);
997
static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO,
998
                        show_in_max, store_in_max, 2);
999
static SENSOR_DEVICE_ATTR(in3_max, S_IWUSR | S_IRUGO,
1000
                        show_in_max, store_in_max, 3);
1001
static SENSOR_DEVICE_ATTR(in4_max, S_IWUSR | S_IRUGO,
1002
                        show_in_max, store_in_max, 4);
1003
static SENSOR_DEVICE_ATTR(in5_max, S_IWUSR | S_IRUGO,
1004
                        show_in_max, store_in_max, 5);
1005
static SENSOR_DEVICE_ATTR(in6_max, S_IWUSR | S_IRUGO,
1006
                        show_in_max, store_in_max, 6);
1007
static SENSOR_DEVICE_ATTR(in7_max, S_IWUSR | S_IRUGO,
1008
                        show_in_max, store_in_max, 7);
1009
static SENSOR_DEVICE_ATTR(in8_max, S_IWUSR | S_IRUGO,
1010
                        show_in_max, store_in_max, 8);
1011
static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp1, NULL, 0, 0);
1012
static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp23, NULL, 0, 0);
1013
static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp23, NULL, 1, 0);
1014
static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR,
1015
                        show_temp1, store_temp1, 0, 1);
1016
static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp23,
1017
                        store_temp23, 0, 2);
1018
static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp23,
1019
                        store_temp23, 1, 2);
1020
static SENSOR_DEVICE_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR,
1021
                        show_temp1, store_temp1, 0, 2);
1022
static SENSOR_DEVICE_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR,
1023
                        show_temp23, store_temp23, 0, 4);
1024
static SENSOR_DEVICE_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR,
1025
                        show_temp23, store_temp23, 1, 4);
1026
static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
1027
static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
1028
static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
1029
static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 2);
1030
static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 3);
1031
static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 4);
1032
static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 5);
1033
static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 6);
1034
static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 7);
1035
static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 8);
1036
static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 9);
1037
static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 10);
1038
static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 11);
1039
static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 12);
1040
static SENSOR_DEVICE_ATTR(fan7_alarm, S_IRUGO, show_alarm, NULL, 15);
1041
static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 19);
1042
static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 20);
1043
static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 21);
1044
static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 22);
1045
static SENSOR_DEVICE_ATTR(fan6_alarm, S_IRUGO, show_alarm, NULL, 23);
1046
static DEVICE_ATTR(chassis, S_IRUGO, show_regs_chassis, NULL);
1047
static DEVICE_ATTR(chassis_clear, S_IRUGO | S_IWUSR,
1048
                        show_chassis_clear, store_chassis_clear);
1049
static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0);
1050
static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1);
1051
static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2);
1052
static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO,
1053
                        show_pwmenable, store_pwmenable, 1);
1054
static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO,
1055
                        show_pwmenable, store_pwmenable, 2);
1056
static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO,
1057
                        show_pwmenable, store_pwmenable, 3);
1058
static SENSOR_DEVICE_ATTR(pwm1_mode, S_IWUSR | S_IRUGO,
1059
                        show_pwm_mode, store_pwm_mode, 0);
1060
static SENSOR_DEVICE_ATTR(pwm2_mode, S_IWUSR | S_IRUGO,
1061
                        show_pwm_mode, store_pwm_mode, 1);
1062
static SENSOR_DEVICE_ATTR(pwm3_mode, S_IWUSR | S_IRUGO,
1063
                        show_pwm_mode, store_pwm_mode, 2);
1064
static SENSOR_DEVICE_ATTR(tolerance1, S_IWUSR | S_IRUGO,
1065
                        show_tolerance, store_tolerance, 1);
1066
static SENSOR_DEVICE_ATTR(tolerance2, S_IWUSR | S_IRUGO,
1067
                        show_tolerance, store_tolerance, 2);
1068
static SENSOR_DEVICE_ATTR(tolerance3, S_IWUSR | S_IRUGO,
1069
                        show_tolerance, store_tolerance, 3);
1070
static SENSOR_DEVICE_ATTR(thermal_cruise1, S_IWUSR | S_IRUGO,
1071
                        show_thermal_cruise, store_thermal_cruise, 1);
1072
static SENSOR_DEVICE_ATTR(thermal_cruise2, S_IWUSR | S_IRUGO,
1073
                        show_thermal_cruise, store_thermal_cruise, 2);
1074
static SENSOR_DEVICE_ATTR(thermal_cruise3, S_IWUSR | S_IRUGO,
1075
                        show_thermal_cruise, store_thermal_cruise, 3);
1076
static SENSOR_DEVICE_ATTR_2(sf2_point1_fan1, S_IRUGO | S_IWUSR,
1077
                        show_sf2_point, store_sf2_point, 1, 1);
1078
static SENSOR_DEVICE_ATTR_2(sf2_point2_fan1, S_IRUGO | S_IWUSR,
1079
                        show_sf2_point, store_sf2_point, 2, 1);
1080
static SENSOR_DEVICE_ATTR_2(sf2_point3_fan1, S_IRUGO | S_IWUSR,
1081
                        show_sf2_point, store_sf2_point, 3, 1);
1082
static SENSOR_DEVICE_ATTR_2(sf2_point4_fan1, S_IRUGO | S_IWUSR,
1083
                        show_sf2_point, store_sf2_point, 4, 1);
1084
static SENSOR_DEVICE_ATTR_2(sf2_point1_fan2, S_IRUGO | S_IWUSR,
1085
                        show_sf2_point, store_sf2_point, 1, 2);
1086
static SENSOR_DEVICE_ATTR_2(sf2_point2_fan2, S_IRUGO | S_IWUSR,
1087
                        show_sf2_point, store_sf2_point, 2, 2);
1088
static SENSOR_DEVICE_ATTR_2(sf2_point3_fan2, S_IRUGO | S_IWUSR,
1089
                        show_sf2_point, store_sf2_point, 3, 2);
1090
static SENSOR_DEVICE_ATTR_2(sf2_point4_fan2, S_IRUGO | S_IWUSR,
1091
                        show_sf2_point, store_sf2_point, 4, 2);
1092
static SENSOR_DEVICE_ATTR_2(sf2_point1_fan3, S_IRUGO | S_IWUSR,
1093
                        show_sf2_point, store_sf2_point, 1, 3);
1094
static SENSOR_DEVICE_ATTR_2(sf2_point2_fan3, S_IRUGO | S_IWUSR,
1095
                        show_sf2_point, store_sf2_point, 2, 3);
1096
static SENSOR_DEVICE_ATTR_2(sf2_point3_fan3, S_IRUGO | S_IWUSR,
1097
                        show_sf2_point, store_sf2_point, 3, 3);
1098
static SENSOR_DEVICE_ATTR_2(sf2_point4_fan3, S_IRUGO | S_IWUSR,
1099
                        show_sf2_point, store_sf2_point, 4, 3);
1100
static SENSOR_DEVICE_ATTR_2(sf2_level1_fan1, S_IRUGO | S_IWUSR,
1101
                        show_sf2_level, store_sf2_level, 1, 1);
1102
static SENSOR_DEVICE_ATTR_2(sf2_level2_fan1, S_IRUGO | S_IWUSR,
1103
                        show_sf2_level, store_sf2_level, 2, 1);
1104
static SENSOR_DEVICE_ATTR_2(sf2_level3_fan1, S_IRUGO | S_IWUSR,
1105
                        show_sf2_level, store_sf2_level, 3, 1);
1106
static SENSOR_DEVICE_ATTR_2(sf2_level1_fan2, S_IRUGO | S_IWUSR,
1107
                        show_sf2_level, store_sf2_level, 1, 2);
1108
static SENSOR_DEVICE_ATTR_2(sf2_level2_fan2, S_IRUGO | S_IWUSR,
1109
                        show_sf2_level, store_sf2_level, 2, 2);
1110
static SENSOR_DEVICE_ATTR_2(sf2_level3_fan2, S_IRUGO | S_IWUSR,
1111
                        show_sf2_level, store_sf2_level, 3, 2);
1112
static SENSOR_DEVICE_ATTR_2(sf2_level1_fan3, S_IRUGO | S_IWUSR,
1113
                        show_sf2_level, store_sf2_level, 1, 3);
1114
static SENSOR_DEVICE_ATTR_2(sf2_level2_fan3, S_IRUGO | S_IWUSR,
1115
                        show_sf2_level, store_sf2_level, 2, 3);
1116
static SENSOR_DEVICE_ATTR_2(sf2_level3_fan3, S_IRUGO | S_IWUSR,
1117
                        show_sf2_level, store_sf2_level, 3, 3);
1118
static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 1);
1119
static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 2);
1120
static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 3);
1121
static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 4);
1122
static SENSOR_DEVICE_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 5);
1123
static SENSOR_DEVICE_ATTR(fan6_input, S_IRUGO, show_fan, NULL, 6);
1124
static SENSOR_DEVICE_ATTR(fan7_input, S_IRUGO, show_fan, NULL, 7);
1125
static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO,
1126
                        show_fan_min, store_fan_min, 1);
1127
static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO,
1128
                        show_fan_min, store_fan_min, 2);
1129
static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO,
1130
                        show_fan_min, store_fan_min, 3);
1131
static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO,
1132
                        show_fan_min, store_fan_min, 4);
1133
static SENSOR_DEVICE_ATTR(fan5_min, S_IWUSR | S_IRUGO,
1134
                        show_fan_min, store_fan_min, 5);
1135
static SENSOR_DEVICE_ATTR(fan6_min, S_IWUSR | S_IRUGO,
1136
                        show_fan_min, store_fan_min, 6);
1137
static SENSOR_DEVICE_ATTR(fan7_min, S_IWUSR | S_IRUGO,
1138
                        show_fan_min, store_fan_min, 7);
1139
static SENSOR_DEVICE_ATTR(fan1_div, S_IWUSR | S_IRUGO,
1140
                        show_fan_div, store_fan_div, 1);
1141
static SENSOR_DEVICE_ATTR(fan2_div, S_IWUSR | S_IRUGO,
1142
                        show_fan_div, store_fan_div, 2);
1143
static SENSOR_DEVICE_ATTR(fan3_div, S_IWUSR | S_IRUGO,
1144
                        show_fan_div, store_fan_div, 3);
1145
static SENSOR_DEVICE_ATTR(fan4_div, S_IWUSR | S_IRUGO,
1146
                        show_fan_div, store_fan_div, 4);
1147
static SENSOR_DEVICE_ATTR(fan5_div, S_IWUSR | S_IRUGO,
1148
                        show_fan_div, store_fan_div, 5);
1149
static SENSOR_DEVICE_ATTR(fan6_div, S_IWUSR | S_IRUGO,
1150
                        show_fan_div, store_fan_div, 6);
1151
static SENSOR_DEVICE_ATTR(fan7_div, S_IWUSR | S_IRUGO,
1152
                        show_fan_div, store_fan_div, 7);
1153
 
1154
static struct attribute *w83792d_attributes_fan[4][5] = {
1155
        {
1156
                &sensor_dev_attr_fan4_input.dev_attr.attr,
1157
                &sensor_dev_attr_fan4_min.dev_attr.attr,
1158
                &sensor_dev_attr_fan4_div.dev_attr.attr,
1159
                &sensor_dev_attr_fan4_alarm.dev_attr.attr,
1160
                NULL
1161
        }, {
1162
                &sensor_dev_attr_fan5_input.dev_attr.attr,
1163
                &sensor_dev_attr_fan5_min.dev_attr.attr,
1164
                &sensor_dev_attr_fan5_div.dev_attr.attr,
1165
                &sensor_dev_attr_fan5_alarm.dev_attr.attr,
1166
                NULL
1167
        }, {
1168
                &sensor_dev_attr_fan6_input.dev_attr.attr,
1169
                &sensor_dev_attr_fan6_min.dev_attr.attr,
1170
                &sensor_dev_attr_fan6_div.dev_attr.attr,
1171
                &sensor_dev_attr_fan6_alarm.dev_attr.attr,
1172
                NULL
1173
        }, {
1174
                &sensor_dev_attr_fan7_input.dev_attr.attr,
1175
                &sensor_dev_attr_fan7_min.dev_attr.attr,
1176
                &sensor_dev_attr_fan7_div.dev_attr.attr,
1177
                &sensor_dev_attr_fan7_alarm.dev_attr.attr,
1178
                NULL
1179
        }
1180
};
1181
 
1182
static const struct attribute_group w83792d_group_fan[4] = {
1183
        { .attrs = w83792d_attributes_fan[0] },
1184
        { .attrs = w83792d_attributes_fan[1] },
1185
        { .attrs = w83792d_attributes_fan[2] },
1186
        { .attrs = w83792d_attributes_fan[3] },
1187
};
1188
 
1189
static struct attribute *w83792d_attributes[] = {
1190
        &sensor_dev_attr_in0_input.dev_attr.attr,
1191
        &sensor_dev_attr_in0_max.dev_attr.attr,
1192
        &sensor_dev_attr_in0_min.dev_attr.attr,
1193
        &sensor_dev_attr_in1_input.dev_attr.attr,
1194
        &sensor_dev_attr_in1_max.dev_attr.attr,
1195
        &sensor_dev_attr_in1_min.dev_attr.attr,
1196
        &sensor_dev_attr_in2_input.dev_attr.attr,
1197
        &sensor_dev_attr_in2_max.dev_attr.attr,
1198
        &sensor_dev_attr_in2_min.dev_attr.attr,
1199
        &sensor_dev_attr_in3_input.dev_attr.attr,
1200
        &sensor_dev_attr_in3_max.dev_attr.attr,
1201
        &sensor_dev_attr_in3_min.dev_attr.attr,
1202
        &sensor_dev_attr_in4_input.dev_attr.attr,
1203
        &sensor_dev_attr_in4_max.dev_attr.attr,
1204
        &sensor_dev_attr_in4_min.dev_attr.attr,
1205
        &sensor_dev_attr_in5_input.dev_attr.attr,
1206
        &sensor_dev_attr_in5_max.dev_attr.attr,
1207
        &sensor_dev_attr_in5_min.dev_attr.attr,
1208
        &sensor_dev_attr_in6_input.dev_attr.attr,
1209
        &sensor_dev_attr_in6_max.dev_attr.attr,
1210
        &sensor_dev_attr_in6_min.dev_attr.attr,
1211
        &sensor_dev_attr_in7_input.dev_attr.attr,
1212
        &sensor_dev_attr_in7_max.dev_attr.attr,
1213
        &sensor_dev_attr_in7_min.dev_attr.attr,
1214
        &sensor_dev_attr_in8_input.dev_attr.attr,
1215
        &sensor_dev_attr_in8_max.dev_attr.attr,
1216
        &sensor_dev_attr_in8_min.dev_attr.attr,
1217
        &sensor_dev_attr_in0_alarm.dev_attr.attr,
1218
        &sensor_dev_attr_in1_alarm.dev_attr.attr,
1219
        &sensor_dev_attr_in2_alarm.dev_attr.attr,
1220
        &sensor_dev_attr_in3_alarm.dev_attr.attr,
1221
        &sensor_dev_attr_in4_alarm.dev_attr.attr,
1222
        &sensor_dev_attr_in5_alarm.dev_attr.attr,
1223
        &sensor_dev_attr_in6_alarm.dev_attr.attr,
1224
        &sensor_dev_attr_in7_alarm.dev_attr.attr,
1225
        &sensor_dev_attr_in8_alarm.dev_attr.attr,
1226
        &sensor_dev_attr_temp1_input.dev_attr.attr,
1227
        &sensor_dev_attr_temp1_max.dev_attr.attr,
1228
        &sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
1229
        &sensor_dev_attr_temp2_input.dev_attr.attr,
1230
        &sensor_dev_attr_temp2_max.dev_attr.attr,
1231
        &sensor_dev_attr_temp2_max_hyst.dev_attr.attr,
1232
        &sensor_dev_attr_temp3_input.dev_attr.attr,
1233
        &sensor_dev_attr_temp3_max.dev_attr.attr,
1234
        &sensor_dev_attr_temp3_max_hyst.dev_attr.attr,
1235
        &sensor_dev_attr_temp1_alarm.dev_attr.attr,
1236
        &sensor_dev_attr_temp2_alarm.dev_attr.attr,
1237
        &sensor_dev_attr_temp3_alarm.dev_attr.attr,
1238
        &sensor_dev_attr_pwm1.dev_attr.attr,
1239
        &sensor_dev_attr_pwm1_mode.dev_attr.attr,
1240
        &sensor_dev_attr_pwm1_enable.dev_attr.attr,
1241
        &sensor_dev_attr_pwm2.dev_attr.attr,
1242
        &sensor_dev_attr_pwm2_mode.dev_attr.attr,
1243
        &sensor_dev_attr_pwm2_enable.dev_attr.attr,
1244
        &sensor_dev_attr_pwm3.dev_attr.attr,
1245
        &sensor_dev_attr_pwm3_mode.dev_attr.attr,
1246
        &sensor_dev_attr_pwm3_enable.dev_attr.attr,
1247
        &dev_attr_alarms.attr,
1248
        &dev_attr_chassis.attr,
1249
        &dev_attr_chassis_clear.attr,
1250
        &sensor_dev_attr_tolerance1.dev_attr.attr,
1251
        &sensor_dev_attr_thermal_cruise1.dev_attr.attr,
1252
        &sensor_dev_attr_tolerance2.dev_attr.attr,
1253
        &sensor_dev_attr_thermal_cruise2.dev_attr.attr,
1254
        &sensor_dev_attr_tolerance3.dev_attr.attr,
1255
        &sensor_dev_attr_thermal_cruise3.dev_attr.attr,
1256
        &sensor_dev_attr_sf2_point1_fan1.dev_attr.attr,
1257
        &sensor_dev_attr_sf2_point2_fan1.dev_attr.attr,
1258
        &sensor_dev_attr_sf2_point3_fan1.dev_attr.attr,
1259
        &sensor_dev_attr_sf2_point4_fan1.dev_attr.attr,
1260
        &sensor_dev_attr_sf2_point1_fan2.dev_attr.attr,
1261
        &sensor_dev_attr_sf2_point2_fan2.dev_attr.attr,
1262
        &sensor_dev_attr_sf2_point3_fan2.dev_attr.attr,
1263
        &sensor_dev_attr_sf2_point4_fan2.dev_attr.attr,
1264
        &sensor_dev_attr_sf2_point1_fan3.dev_attr.attr,
1265
        &sensor_dev_attr_sf2_point2_fan3.dev_attr.attr,
1266
        &sensor_dev_attr_sf2_point3_fan3.dev_attr.attr,
1267
        &sensor_dev_attr_sf2_point4_fan3.dev_attr.attr,
1268
        &sensor_dev_attr_sf2_level1_fan1.dev_attr.attr,
1269
        &sensor_dev_attr_sf2_level2_fan1.dev_attr.attr,
1270
        &sensor_dev_attr_sf2_level3_fan1.dev_attr.attr,
1271
        &sensor_dev_attr_sf2_level1_fan2.dev_attr.attr,
1272
        &sensor_dev_attr_sf2_level2_fan2.dev_attr.attr,
1273
        &sensor_dev_attr_sf2_level3_fan2.dev_attr.attr,
1274
        &sensor_dev_attr_sf2_level1_fan3.dev_attr.attr,
1275
        &sensor_dev_attr_sf2_level2_fan3.dev_attr.attr,
1276
        &sensor_dev_attr_sf2_level3_fan3.dev_attr.attr,
1277
        &sensor_dev_attr_fan1_input.dev_attr.attr,
1278
        &sensor_dev_attr_fan1_min.dev_attr.attr,
1279
        &sensor_dev_attr_fan1_div.dev_attr.attr,
1280
        &sensor_dev_attr_fan1_alarm.dev_attr.attr,
1281
        &sensor_dev_attr_fan2_input.dev_attr.attr,
1282
        &sensor_dev_attr_fan2_min.dev_attr.attr,
1283
        &sensor_dev_attr_fan2_div.dev_attr.attr,
1284
        &sensor_dev_attr_fan2_alarm.dev_attr.attr,
1285
        &sensor_dev_attr_fan3_input.dev_attr.attr,
1286
        &sensor_dev_attr_fan3_min.dev_attr.attr,
1287
        &sensor_dev_attr_fan3_div.dev_attr.attr,
1288
        &sensor_dev_attr_fan3_alarm.dev_attr.attr,
1289
        NULL
1290
};
1291
 
1292
static const struct attribute_group w83792d_group = {
1293
        .attrs = w83792d_attributes,
1294
};
1295
 
1296
static int
1297
w83792d_detect(struct i2c_adapter *adapter, int address, int kind)
1298
{
1299
        int i = 0, val1 = 0, val2;
1300
        struct i2c_client *client;
1301
        struct device *dev;
1302
        struct w83792d_data *data;
1303
        int err = 0;
1304
        const char *client_name = "";
1305
 
1306
        if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
1307
                goto ERROR0;
1308
        }
1309
 
1310
        /* OK. For now, we presume we have a valid client. We now create the
1311
           client structure, even though we cannot fill it completely yet.
1312
           But it allows us to access w83792d_{read,write}_value. */
1313
 
1314
        if (!(data = kzalloc(sizeof(struct w83792d_data), GFP_KERNEL))) {
1315
                err = -ENOMEM;
1316
                goto ERROR0;
1317
        }
1318
 
1319
        client = &data->client;
1320
        dev = &client->dev;
1321
        i2c_set_clientdata(client, data);
1322
        client->addr = address;
1323
        client->adapter = adapter;
1324
        client->driver = &w83792d_driver;
1325
        client->flags = 0;
1326
 
1327
        /* Now, we do the remaining detection. */
1328
 
1329
        /* The w83792d may be stuck in some other bank than bank 0. This may
1330
           make reading other information impossible. Specify a force=... or
1331
           force_*=... parameter, and the Winbond will be reset to the right
1332
           bank. */
1333
        if (kind < 0) {
1334
                if (w83792d_read_value(client, W83792D_REG_CONFIG) & 0x80) {
1335
                        dev_dbg(dev, "Detection failed at step 1\n");
1336
                        goto ERROR1;
1337
                }
1338
                val1 = w83792d_read_value(client, W83792D_REG_BANK);
1339
                val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN);
1340
                /* Check for Winbond ID if in bank 0 */
1341
                if (!(val1 & 0x07)) {  /* is Bank0 */
1342
                        if (((!(val1 & 0x80)) && (val2 != 0xa3)) ||
1343
                             ((val1 & 0x80) && (val2 != 0x5c))) {
1344
                                dev_dbg(dev, "Detection failed at step 2\n");
1345
                                goto ERROR1;
1346
                        }
1347
                }
1348
                /* If Winbond chip, address of chip and W83792D_REG_I2C_ADDR
1349
                   should match */
1350
                if (w83792d_read_value(client,
1351
                                        W83792D_REG_I2C_ADDR) != address) {
1352
                        dev_dbg(dev, "Detection failed at step 3\n");
1353
                        goto ERROR1;
1354
                }
1355
        }
1356
 
1357
        /* We have either had a force parameter, or we have already detected the
1358
           Winbond. Put it now into bank 0 and Vendor ID High Byte */
1359
        w83792d_write_value(client,
1360
                            W83792D_REG_BANK,
1361
                            (w83792d_read_value(client,
1362
                                W83792D_REG_BANK) & 0x78) | 0x80);
1363
 
1364
        /* Determine the chip type. */
1365
        if (kind <= 0) {
1366
                /* get vendor ID */
1367
                val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN);
1368
                if (val2 != 0x5c) {  /* the vendor is NOT Winbond */
1369
                        goto ERROR1;
1370
                }
1371
                val1 = w83792d_read_value(client, W83792D_REG_WCHIPID);
1372
                if (val1 == 0x7a) {
1373
                        kind = w83792d;
1374
                } else {
1375
                        if (kind == 0)
1376
                                        dev_warn(dev,
1377
                                        "w83792d: Ignoring 'force' parameter for"
1378
                                        " unknown chip at adapter %d, address"
1379
                                        " 0x%02x\n", i2c_adapter_id(adapter),
1380
                                        address);
1381
                        goto ERROR1;
1382
                }
1383
        }
1384
 
1385
        if (kind == w83792d) {
1386
                client_name = "w83792d";
1387
        } else {
1388
                dev_err(dev, "w83792d: Internal error: unknown kind (%d)?!?\n",
1389
                        kind);
1390
                goto ERROR1;
1391
        }
1392
 
1393
        /* Fill in the remaining client fields and put into the global list */
1394
        strlcpy(client->name, client_name, I2C_NAME_SIZE);
1395
        data->type = kind;
1396
 
1397
        data->valid = 0;
1398
        mutex_init(&data->update_lock);
1399
 
1400
        /* Tell the I2C layer a new client has arrived */
1401
        if ((err = i2c_attach_client(client)))
1402
                goto ERROR1;
1403
 
1404
        if ((err = w83792d_detect_subclients(adapter, address,
1405
                        kind, client)))
1406
                goto ERROR2;
1407
 
1408
        /* Initialize the chip */
1409
        w83792d_init_client(client);
1410
 
1411
        /* A few vars need to be filled upon startup */
1412
        for (i = 0; i < 7; i++) {
1413
                data->fan_min[i] = w83792d_read_value(client,
1414
                                        W83792D_REG_FAN_MIN[i]);
1415
        }
1416
 
1417
        /* Register sysfs hooks */
1418
        if ((err = sysfs_create_group(&dev->kobj, &w83792d_group)))
1419
                goto ERROR3;
1420
 
1421
        /* Read GPIO enable register to check if pins for fan 4,5 are used as
1422
           GPIO */
1423
        val1 = w83792d_read_value(client, W83792D_REG_GPIO_EN);
1424
 
1425
        if (!(val1 & 0x40))
1426
                if ((err = sysfs_create_group(&dev->kobj,
1427
                                              &w83792d_group_fan[0])))
1428
                        goto exit_remove_files;
1429
 
1430
        if (!(val1 & 0x20))
1431
                if ((err = sysfs_create_group(&dev->kobj,
1432
                                              &w83792d_group_fan[1])))
1433
                        goto exit_remove_files;
1434
 
1435
        val1 = w83792d_read_value(client, W83792D_REG_PIN);
1436
        if (val1 & 0x40)
1437
                if ((err = sysfs_create_group(&dev->kobj,
1438
                                              &w83792d_group_fan[2])))
1439
                        goto exit_remove_files;
1440
 
1441
        if (val1 & 0x04)
1442
                if ((err = sysfs_create_group(&dev->kobj,
1443
                                              &w83792d_group_fan[3])))
1444
                        goto exit_remove_files;
1445
 
1446
        data->hwmon_dev = hwmon_device_register(dev);
1447
        if (IS_ERR(data->hwmon_dev)) {
1448
                err = PTR_ERR(data->hwmon_dev);
1449
                goto exit_remove_files;
1450
        }
1451
 
1452
        return 0;
1453
 
1454
exit_remove_files:
1455
        sysfs_remove_group(&dev->kobj, &w83792d_group);
1456
        for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++)
1457
                sysfs_remove_group(&dev->kobj, &w83792d_group_fan[i]);
1458
ERROR3:
1459
        if (data->lm75[0] != NULL) {
1460
                i2c_detach_client(data->lm75[0]);
1461
                kfree(data->lm75[0]);
1462
        }
1463
        if (data->lm75[1] != NULL) {
1464
                i2c_detach_client(data->lm75[1]);
1465
                kfree(data->lm75[1]);
1466
        }
1467
ERROR2:
1468
        i2c_detach_client(client);
1469
ERROR1:
1470
        kfree(data);
1471
ERROR0:
1472
        return err;
1473
}
1474
 
1475
static int
1476
w83792d_detach_client(struct i2c_client *client)
1477
{
1478
        struct w83792d_data *data = i2c_get_clientdata(client);
1479
        int err, i;
1480
 
1481
        /* main client */
1482
        if (data) {
1483
                hwmon_device_unregister(data->hwmon_dev);
1484
                sysfs_remove_group(&client->dev.kobj, &w83792d_group);
1485
                for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++)
1486
                        sysfs_remove_group(&client->dev.kobj,
1487
                                           &w83792d_group_fan[i]);
1488
        }
1489
 
1490
        if ((err = i2c_detach_client(client)))
1491
                return err;
1492
 
1493
        /* main client */
1494
        if (data)
1495
                kfree(data);
1496
        /* subclient */
1497
        else
1498
                kfree(client);
1499
 
1500
        return 0;
1501
}
1502
 
1503
static void
1504
w83792d_init_client(struct i2c_client *client)
1505
{
1506
        u8 temp2_cfg, temp3_cfg, vid_in_b;
1507
 
1508
        if (init) {
1509
                w83792d_write_value(client, W83792D_REG_CONFIG, 0x80);
1510
        }
1511
        /* Clear the bit6 of W83792D_REG_VID_IN_B(set it into 0):
1512
           W83792D_REG_VID_IN_B bit6 = 0: the high/low limit of
1513
             vin0/vin1 can be modified by user;
1514
           W83792D_REG_VID_IN_B bit6 = 1: the high/low limit of
1515
             vin0/vin1 auto-updated, can NOT be modified by user. */
1516
        vid_in_b = w83792d_read_value(client, W83792D_REG_VID_IN_B);
1517
        w83792d_write_value(client, W83792D_REG_VID_IN_B,
1518
                            vid_in_b & 0xbf);
1519
 
1520
        temp2_cfg = w83792d_read_value(client, W83792D_REG_TEMP2_CONFIG);
1521
        temp3_cfg = w83792d_read_value(client, W83792D_REG_TEMP3_CONFIG);
1522
        w83792d_write_value(client, W83792D_REG_TEMP2_CONFIG,
1523
                                temp2_cfg & 0xe6);
1524
        w83792d_write_value(client, W83792D_REG_TEMP3_CONFIG,
1525
                                temp3_cfg & 0xe6);
1526
 
1527
        /* Start monitoring */
1528
        w83792d_write_value(client, W83792D_REG_CONFIG,
1529
                            (w83792d_read_value(client,
1530
                                                W83792D_REG_CONFIG) & 0xf7)
1531
                            | 0x01);
1532
}
1533
 
1534
static struct w83792d_data *w83792d_update_device(struct device *dev)
1535
{
1536
        struct i2c_client *client = to_i2c_client(dev);
1537
        struct w83792d_data *data = i2c_get_clientdata(client);
1538
        int i, j;
1539
        u8 reg_array_tmp[4], reg_tmp;
1540
 
1541
        mutex_lock(&data->update_lock);
1542
 
1543
        if (time_after
1544
            (jiffies - data->last_updated, (unsigned long) (HZ * 3))
1545
            || time_before(jiffies, data->last_updated) || !data->valid) {
1546
                dev_dbg(dev, "Starting device update\n");
1547
 
1548
                /* Update the voltages measured value and limits */
1549
                for (i = 0; i < 9; i++) {
1550
                        data->in[i] = w83792d_read_value(client,
1551
                                                W83792D_REG_IN[i]);
1552
                        data->in_max[i] = w83792d_read_value(client,
1553
                                                W83792D_REG_IN_MAX[i]);
1554
                        data->in_min[i] = w83792d_read_value(client,
1555
                                                W83792D_REG_IN_MIN[i]);
1556
                }
1557
                data->low_bits = w83792d_read_value(client,
1558
                                                W83792D_REG_LOW_BITS1) +
1559
                                 (w83792d_read_value(client,
1560
                                                W83792D_REG_LOW_BITS2) << 8);
1561
                for (i = 0; i < 7; i++) {
1562
                        /* Update the Fan measured value and limits */
1563
                        data->fan[i] = w83792d_read_value(client,
1564
                                                W83792D_REG_FAN[i]);
1565
                        data->fan_min[i] = w83792d_read_value(client,
1566
                                                W83792D_REG_FAN_MIN[i]);
1567
                        /* Update the PWM/DC Value and PWM/DC flag */
1568
                        data->pwm[i] = w83792d_read_value(client,
1569
                                                W83792D_REG_PWM[i]);
1570
                }
1571
 
1572
                reg_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG);
1573
                data->pwmenable[0] = reg_tmp & 0x03;
1574
                data->pwmenable[1] = (reg_tmp>>2) & 0x03;
1575
                data->pwmenable[2] = (reg_tmp>>4) & 0x03;
1576
 
1577
                for (i = 0; i < 3; i++) {
1578
                        data->temp1[i] = w83792d_read_value(client,
1579
                                                        W83792D_REG_TEMP1[i]);
1580
                }
1581
                for (i = 0; i < 2; i++) {
1582
                        for (j = 0; j < 6; j++) {
1583
                                data->temp_add[i][j] = w83792d_read_value(
1584
                                        client,W83792D_REG_TEMP_ADD[i][j]);
1585
                        }
1586
                }
1587
 
1588
                /* Update the Fan Divisor */
1589
                for (i = 0; i < 4; i++) {
1590
                        reg_array_tmp[i] = w83792d_read_value(client,
1591
                                                        W83792D_REG_FAN_DIV[i]);
1592
                }
1593
                data->fan_div[0] = reg_array_tmp[0] & 0x07;
1594
                data->fan_div[1] = (reg_array_tmp[0] >> 4) & 0x07;
1595
                data->fan_div[2] = reg_array_tmp[1] & 0x07;
1596
                data->fan_div[3] = (reg_array_tmp[1] >> 4) & 0x07;
1597
                data->fan_div[4] = reg_array_tmp[2] & 0x07;
1598
                data->fan_div[5] = (reg_array_tmp[2] >> 4) & 0x07;
1599
                data->fan_div[6] = reg_array_tmp[3] & 0x07;
1600
 
1601
                /* Update the realtime status */
1602
                data->alarms = w83792d_read_value(client, W83792D_REG_ALARM1) +
1603
                        (w83792d_read_value(client, W83792D_REG_ALARM2) << 8) +
1604
                        (w83792d_read_value(client, W83792D_REG_ALARM3) << 16);
1605
 
1606
                /* Update CaseOpen status and it's CLR_CHS. */
1607
                data->chassis = (w83792d_read_value(client,
1608
                        W83792D_REG_CHASSIS) >> 5) & 0x01;
1609
                data->chassis_clear = (w83792d_read_value(client,
1610
                        W83792D_REG_CHASSIS_CLR) >> 7) & 0x01;
1611
 
1612
                /* Update Thermal Cruise/Smart Fan I target value */
1613
                for (i = 0; i < 3; i++) {
1614
                        data->thermal_cruise[i] =
1615
                                w83792d_read_value(client,
1616
                                W83792D_REG_THERMAL[i]) & 0x7f;
1617
                }
1618
 
1619
                /* Update Smart Fan I/II tolerance */
1620
                reg_tmp = w83792d_read_value(client, W83792D_REG_TOLERANCE[0]);
1621
                data->tolerance[0] = reg_tmp & 0x0f;
1622
                data->tolerance[1] = (reg_tmp >> 4) & 0x0f;
1623
                data->tolerance[2] = w83792d_read_value(client,
1624
                                        W83792D_REG_TOLERANCE[2]) & 0x0f;
1625
 
1626
                /* Update Smart Fan II temperature points */
1627
                for (i = 0; i < 3; i++) {
1628
                        for (j = 0; j < 4; j++) {
1629
                                data->sf2_points[i][j] = w83792d_read_value(
1630
                                        client,W83792D_REG_POINTS[i][j]) & 0x7f;
1631
                        }
1632
                }
1633
 
1634
                /* Update Smart Fan II duty cycle levels */
1635
                for (i = 0; i < 3; i++) {
1636
                        reg_tmp = w83792d_read_value(client,
1637
                                                W83792D_REG_LEVELS[i][0]);
1638
                        data->sf2_levels[i][0] = reg_tmp & 0x0f;
1639
                        data->sf2_levels[i][1] = (reg_tmp >> 4) & 0x0f;
1640
                        reg_tmp = w83792d_read_value(client,
1641
                                                W83792D_REG_LEVELS[i][2]);
1642
                        data->sf2_levels[i][2] = (reg_tmp >> 4) & 0x0f;
1643
                        data->sf2_levels[i][3] = reg_tmp & 0x0f;
1644
                }
1645
 
1646
                data->last_updated = jiffies;
1647
                data->valid = 1;
1648
        }
1649
 
1650
        mutex_unlock(&data->update_lock);
1651
 
1652
#ifdef DEBUG
1653
        w83792d_print_debug(data, dev);
1654
#endif
1655
 
1656
        return data;
1657
}
1658
 
1659
#ifdef DEBUG
1660
static void w83792d_print_debug(struct w83792d_data *data, struct device *dev)
1661
{
1662
        int i=0, j=0;
1663
        dev_dbg(dev, "==========The following is the debug message...========\n");
1664
        dev_dbg(dev, "9 set of Voltages: =====>\n");
1665
        for (i=0; i<9; i++) {
1666
                dev_dbg(dev, "vin[%d] is: 0x%x\n", i, data->in[i]);
1667
                dev_dbg(dev, "vin[%d] max is: 0x%x\n", i, data->in_max[i]);
1668
                dev_dbg(dev, "vin[%d] min is: 0x%x\n", i, data->in_min[i]);
1669
        }
1670
        dev_dbg(dev, "Low Bit1 is: 0x%x\n", data->low_bits & 0xff);
1671
        dev_dbg(dev, "Low Bit2 is: 0x%x\n", data->low_bits >> 8);
1672
        dev_dbg(dev, "7 set of Fan Counts and Duty Cycles: =====>\n");
1673
        for (i=0; i<7; i++) {
1674
                dev_dbg(dev, "fan[%d] is: 0x%x\n", i, data->fan[i]);
1675
                dev_dbg(dev, "fan[%d] min is: 0x%x\n", i, data->fan_min[i]);
1676
                dev_dbg(dev, "pwm[%d]     is: 0x%x\n", i, data->pwm[i]);
1677
        }
1678
        dev_dbg(dev, "3 set of Temperatures: =====>\n");
1679
        for (i=0; i<3; i++) {
1680
                dev_dbg(dev, "temp1[%d] is: 0x%x\n", i, data->temp1[i]);
1681
        }
1682
 
1683
        for (i=0; i<2; i++) {
1684
                for (j=0; j<6; j++) {
1685
                        dev_dbg(dev, "temp_add[%d][%d] is: 0x%x\n", i, j,
1686
                                                        data->temp_add[i][j]);
1687
                }
1688
        }
1689
 
1690
        for (i=0; i<7; i++) {
1691
                dev_dbg(dev, "fan_div[%d] is: 0x%x\n", i, data->fan_div[i]);
1692
        }
1693
        dev_dbg(dev, "==========End of the debug message...==================\n");
1694
        dev_dbg(dev, "\n");
1695
}
1696
#endif
1697
 
1698
static int __init
1699
sensors_w83792d_init(void)
1700
{
1701
        return i2c_add_driver(&w83792d_driver);
1702
}
1703
 
1704
static void __exit
1705
sensors_w83792d_exit(void)
1706
{
1707
        i2c_del_driver(&w83792d_driver);
1708
}
1709
 
1710
MODULE_AUTHOR("Chunhao Huang @ Winbond <DZShen@Winbond.com.tw>");
1711
MODULE_DESCRIPTION("W83792AD/D driver for linux-2.6");
1712
MODULE_LICENSE("GPL");
1713
 
1714
module_init(sensors_w83792d_init);
1715
module_exit(sensors_w83792d_exit);
1716
 

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