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[IA64] update sn2_defconfig
[deliverable/linux.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 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 class_device *class_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
544 show_pwm(struct device *dev, struct device_attribute *attr,
545 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->pwm[nr] & 0x0f) << 4);
551 }
552
553 static ssize_t
554 show_pwmenable(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 - 1;
559 struct w83792d_data *data = w83792d_update_device(dev);
560 long pwm_enable_tmp = 1;
561
562 switch (data->pwmenable[nr]) {
563 case 0:
564 pwm_enable_tmp = 1; /* manual mode */
565 break;
566 case 1:
567 pwm_enable_tmp = 3; /*thermal cruise/Smart Fan I */
568 break;
569 case 2:
570 pwm_enable_tmp = 2; /* Smart Fan II */
571 break;
572 }
573
574 return sprintf(buf, "%ld\n", pwm_enable_tmp);
575 }
576
577 static ssize_t
578 store_pwm(struct device *dev, struct device_attribute *attr,
579 const char *buf, size_t count)
580 {
581 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
582 int nr = sensor_attr->index;
583 struct i2c_client *client = to_i2c_client(dev);
584 struct w83792d_data *data = i2c_get_clientdata(client);
585 u8 val = SENSORS_LIMIT(simple_strtoul(buf, NULL, 10), 0, 255) >> 4;
586
587 mutex_lock(&data->update_lock);
588 val |= w83792d_read_value(client, W83792D_REG_PWM[nr]) & 0xf0;
589 data->pwm[nr] = val;
590 w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]);
591 mutex_unlock(&data->update_lock);
592
593 return count;
594 }
595
596 static ssize_t
597 store_pwmenable(struct device *dev, struct device_attribute *attr,
598 const char *buf, size_t count)
599 {
600 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
601 int nr = sensor_attr->index - 1;
602 struct i2c_client *client = to_i2c_client(dev);
603 struct w83792d_data *data = i2c_get_clientdata(client);
604 u32 val;
605 u8 fan_cfg_tmp, cfg1_tmp, cfg2_tmp, cfg3_tmp, cfg4_tmp;
606
607 val = simple_strtoul(buf, NULL, 10);
608 if (val < 1 || val > 3)
609 return -EINVAL;
610
611 mutex_lock(&data->update_lock);
612 switch (val) {
613 case 1:
614 data->pwmenable[nr] = 0; /* manual mode */
615 break;
616 case 2:
617 data->pwmenable[nr] = 2; /* Smart Fan II */
618 break;
619 case 3:
620 data->pwmenable[nr] = 1; /* thermal cruise/Smart Fan I */
621 break;
622 }
623 cfg1_tmp = data->pwmenable[0];
624 cfg2_tmp = (data->pwmenable[1]) << 2;
625 cfg3_tmp = (data->pwmenable[2]) << 4;
626 cfg4_tmp = w83792d_read_value(client,W83792D_REG_FAN_CFG) & 0xc0;
627 fan_cfg_tmp = ((cfg4_tmp | cfg3_tmp) | cfg2_tmp) | cfg1_tmp;
628 w83792d_write_value(client, W83792D_REG_FAN_CFG, fan_cfg_tmp);
629 mutex_unlock(&data->update_lock);
630
631 return count;
632 }
633
634 static ssize_t
635 show_pwm_mode(struct device *dev, struct device_attribute *attr,
636 char *buf)
637 {
638 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
639 int nr = sensor_attr->index;
640 struct w83792d_data *data = w83792d_update_device(dev);
641 return sprintf(buf, "%d\n", data->pwm[nr] >> 7);
642 }
643
644 static ssize_t
645 store_pwm_mode(struct device *dev, struct device_attribute *attr,
646 const char *buf, size_t count)
647 {
648 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
649 int nr = sensor_attr->index;
650 struct i2c_client *client = to_i2c_client(dev);
651 struct w83792d_data *data = i2c_get_clientdata(client);
652 u32 val;
653
654 val = simple_strtoul(buf, NULL, 10);
655 if (val != 0 && val != 1)
656 return -EINVAL;
657
658 mutex_lock(&data->update_lock);
659 data->pwm[nr] = w83792d_read_value(client, W83792D_REG_PWM[nr]);
660 if (val) { /* PWM mode */
661 data->pwm[nr] |= 0x80;
662 } else { /* DC mode */
663 data->pwm[nr] &= 0x7f;
664 }
665 w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]);
666 mutex_unlock(&data->update_lock);
667
668 return count;
669 }
670
671 static ssize_t
672 show_regs_chassis(struct device *dev, struct device_attribute *attr,
673 char *buf)
674 {
675 struct w83792d_data *data = w83792d_update_device(dev);
676 return sprintf(buf, "%d\n", data->chassis);
677 }
678
679 static ssize_t
680 show_chassis_clear(struct device *dev, struct device_attribute *attr, char *buf)
681 {
682 struct w83792d_data *data = w83792d_update_device(dev);
683 return sprintf(buf, "%d\n", data->chassis_clear);
684 }
685
686 static ssize_t
687 store_chassis_clear(struct device *dev, struct device_attribute *attr,
688 const char *buf, size_t count)
689 {
690 struct i2c_client *client = to_i2c_client(dev);
691 struct w83792d_data *data = i2c_get_clientdata(client);
692 u32 val;
693 u8 temp1 = 0, temp2 = 0;
694
695 val = simple_strtoul(buf, NULL, 10);
696 mutex_lock(&data->update_lock);
697 data->chassis_clear = SENSORS_LIMIT(val, 0 ,1);
698 temp1 = ((data->chassis_clear) << 7) & 0x80;
699 temp2 = w83792d_read_value(client,
700 W83792D_REG_CHASSIS_CLR) & 0x7f;
701 w83792d_write_value(client, W83792D_REG_CHASSIS_CLR, temp1 | temp2);
702 mutex_unlock(&data->update_lock);
703
704 return count;
705 }
706
707 /* For Smart Fan I / Thermal Cruise */
708 static ssize_t
709 show_thermal_cruise(struct device *dev, struct device_attribute *attr,
710 char *buf)
711 {
712 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
713 int nr = sensor_attr->index;
714 struct w83792d_data *data = w83792d_update_device(dev);
715 return sprintf(buf, "%ld\n", (long)data->thermal_cruise[nr-1]);
716 }
717
718 static ssize_t
719 store_thermal_cruise(struct device *dev, struct device_attribute *attr,
720 const char *buf, size_t count)
721 {
722 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
723 int nr = sensor_attr->index - 1;
724 struct i2c_client *client = to_i2c_client(dev);
725 struct w83792d_data *data = i2c_get_clientdata(client);
726 u32 val;
727 u8 target_tmp=0, target_mask=0;
728
729 val = simple_strtoul(buf, NULL, 10);
730 target_tmp = val;
731 target_tmp = target_tmp & 0x7f;
732 mutex_lock(&data->update_lock);
733 target_mask = w83792d_read_value(client, W83792D_REG_THERMAL[nr]) & 0x80;
734 data->thermal_cruise[nr] = SENSORS_LIMIT(target_tmp, 0, 255);
735 w83792d_write_value(client, W83792D_REG_THERMAL[nr],
736 (data->thermal_cruise[nr]) | target_mask);
737 mutex_unlock(&data->update_lock);
738
739 return count;
740 }
741
742 /* For Smart Fan I/Thermal Cruise and Smart Fan II */
743 static ssize_t
744 show_tolerance(struct device *dev, struct device_attribute *attr,
745 char *buf)
746 {
747 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
748 int nr = sensor_attr->index;
749 struct w83792d_data *data = w83792d_update_device(dev);
750 return sprintf(buf, "%ld\n", (long)data->tolerance[nr-1]);
751 }
752
753 static ssize_t
754 store_tolerance(struct device *dev, struct device_attribute *attr,
755 const char *buf, size_t count)
756 {
757 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
758 int nr = sensor_attr->index - 1;
759 struct i2c_client *client = to_i2c_client(dev);
760 struct w83792d_data *data = i2c_get_clientdata(client);
761 u32 val;
762 u8 tol_tmp, tol_mask;
763
764 val = simple_strtoul(buf, NULL, 10);
765 mutex_lock(&data->update_lock);
766 tol_mask = w83792d_read_value(client,
767 W83792D_REG_TOLERANCE[nr]) & ((nr == 1) ? 0x0f : 0xf0);
768 tol_tmp = SENSORS_LIMIT(val, 0, 15);
769 tol_tmp &= 0x0f;
770 data->tolerance[nr] = tol_tmp;
771 if (nr == 1) {
772 tol_tmp <<= 4;
773 }
774 w83792d_write_value(client, W83792D_REG_TOLERANCE[nr],
775 tol_mask | tol_tmp);
776 mutex_unlock(&data->update_lock);
777
778 return count;
779 }
780
781 /* For Smart Fan II */
782 static ssize_t
783 show_sf2_point(struct device *dev, struct device_attribute *attr,
784 char *buf)
785 {
786 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
787 int nr = sensor_attr->nr;
788 int index = sensor_attr->index;
789 struct w83792d_data *data = w83792d_update_device(dev);
790 return sprintf(buf, "%ld\n", (long)data->sf2_points[index-1][nr-1]);
791 }
792
793 static ssize_t
794 store_sf2_point(struct device *dev, struct device_attribute *attr,
795 const char *buf, size_t count)
796 {
797 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
798 int nr = sensor_attr->nr - 1;
799 int index = sensor_attr->index - 1;
800 struct i2c_client *client = to_i2c_client(dev);
801 struct w83792d_data *data = i2c_get_clientdata(client);
802 u32 val;
803 u8 mask_tmp = 0;
804
805 val = simple_strtoul(buf, NULL, 10);
806 mutex_lock(&data->update_lock);
807 data->sf2_points[index][nr] = SENSORS_LIMIT(val, 0, 127);
808 mask_tmp = w83792d_read_value(client,
809 W83792D_REG_POINTS[index][nr]) & 0x80;
810 w83792d_write_value(client, W83792D_REG_POINTS[index][nr],
811 mask_tmp|data->sf2_points[index][nr]);
812 mutex_unlock(&data->update_lock);
813
814 return count;
815 }
816
817 static ssize_t
818 show_sf2_level(struct device *dev, struct device_attribute *attr,
819 char *buf)
820 {
821 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
822 int nr = sensor_attr->nr;
823 int index = sensor_attr->index;
824 struct w83792d_data *data = w83792d_update_device(dev);
825 return sprintf(buf, "%d\n",
826 (((data->sf2_levels[index-1][nr]) * 100) / 15));
827 }
828
829 static ssize_t
830 store_sf2_level(struct device *dev, struct device_attribute *attr,
831 const char *buf, size_t count)
832 {
833 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
834 int nr = sensor_attr->nr;
835 int index = sensor_attr->index - 1;
836 struct i2c_client *client = to_i2c_client(dev);
837 struct w83792d_data *data = i2c_get_clientdata(client);
838 u32 val;
839 u8 mask_tmp=0, level_tmp=0;
840
841 val = simple_strtoul(buf, NULL, 10);
842 mutex_lock(&data->update_lock);
843 data->sf2_levels[index][nr] = SENSORS_LIMIT((val * 15) / 100, 0, 15);
844 mask_tmp = w83792d_read_value(client, W83792D_REG_LEVELS[index][nr])
845 & ((nr==3) ? 0xf0 : 0x0f);
846 if (nr==3) {
847 level_tmp = data->sf2_levels[index][nr];
848 } else {
849 level_tmp = data->sf2_levels[index][nr] << 4;
850 }
851 w83792d_write_value(client, W83792D_REG_LEVELS[index][nr], level_tmp | mask_tmp);
852 mutex_unlock(&data->update_lock);
853
854 return count;
855 }
856
857 /* This function is called when:
858 * w83792d_driver is inserted (when this module is loaded), for each
859 available adapter
860 * when a new adapter is inserted (and w83792d_driver is still present) */
861 static int
862 w83792d_attach_adapter(struct i2c_adapter *adapter)
863 {
864 if (!(adapter->class & I2C_CLASS_HWMON))
865 return 0;
866 return i2c_probe(adapter, &addr_data, w83792d_detect);
867 }
868
869
870 static int
871 w83792d_create_subclient(struct i2c_adapter *adapter,
872 struct i2c_client *new_client, int addr,
873 struct i2c_client **sub_cli)
874 {
875 int err;
876 struct i2c_client *sub_client;
877
878 (*sub_cli) = sub_client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
879 if (!(sub_client)) {
880 return -ENOMEM;
881 }
882 sub_client->addr = 0x48 + addr;
883 i2c_set_clientdata(sub_client, NULL);
884 sub_client->adapter = adapter;
885 sub_client->driver = &w83792d_driver;
886 sub_client->flags = 0;
887 strlcpy(sub_client->name, "w83792d subclient", I2C_NAME_SIZE);
888 if ((err = i2c_attach_client(sub_client))) {
889 dev_err(&new_client->dev, "subclient registration "
890 "at address 0x%x failed\n", sub_client->addr);
891 kfree(sub_client);
892 return err;
893 }
894 return 0;
895 }
896
897
898 static int
899 w83792d_detect_subclients(struct i2c_adapter *adapter, int address, int kind,
900 struct i2c_client *new_client)
901 {
902 int i, id, err;
903 u8 val;
904 struct w83792d_data *data = i2c_get_clientdata(new_client);
905
906 id = i2c_adapter_id(adapter);
907 if (force_subclients[0] == id && force_subclients[1] == address) {
908 for (i = 2; i <= 3; i++) {
909 if (force_subclients[i] < 0x48 ||
910 force_subclients[i] > 0x4f) {
911 dev_err(&new_client->dev, "invalid subclient "
912 "address %d; must be 0x48-0x4f\n",
913 force_subclients[i]);
914 err = -ENODEV;
915 goto ERROR_SC_0;
916 }
917 }
918 w83792d_write_value(new_client, W83792D_REG_I2C_SUBADDR,
919 (force_subclients[2] & 0x07) |
920 ((force_subclients[3] & 0x07) << 4));
921 }
922
923 val = w83792d_read_value(new_client, W83792D_REG_I2C_SUBADDR);
924 if (!(val & 0x08)) {
925 err = w83792d_create_subclient(adapter, new_client, val & 0x7,
926 &data->lm75[0]);
927 if (err < 0)
928 goto ERROR_SC_0;
929 }
930 if (!(val & 0x80)) {
931 if ((data->lm75[0] != NULL) &&
932 ((val & 0x7) == ((val >> 4) & 0x7))) {
933 dev_err(&new_client->dev, "duplicate addresses 0x%x, "
934 "use force_subclient\n", data->lm75[0]->addr);
935 err = -ENODEV;
936 goto ERROR_SC_1;
937 }
938 err = w83792d_create_subclient(adapter, new_client,
939 (val >> 4) & 0x7, &data->lm75[1]);
940 if (err < 0)
941 goto ERROR_SC_1;
942 }
943
944 return 0;
945
946 /* Undo inits in case of errors */
947
948 ERROR_SC_1:
949 if (data->lm75[0] != NULL) {
950 i2c_detach_client(data->lm75[0]);
951 kfree(data->lm75[0]);
952 }
953 ERROR_SC_0:
954 return err;
955 }
956
957 static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0);
958 static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1);
959 static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2);
960 static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3);
961 static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 4);
962 static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 5);
963 static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 6);
964 static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 7);
965 static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_in, NULL, 8);
966 static SENSOR_DEVICE_ATTR(in0_min, S_IWUSR | S_IRUGO,
967 show_in_min, store_in_min, 0);
968 static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO,
969 show_in_min, store_in_min, 1);
970 static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO,
971 show_in_min, store_in_min, 2);
972 static SENSOR_DEVICE_ATTR(in3_min, S_IWUSR | S_IRUGO,
973 show_in_min, store_in_min, 3);
974 static SENSOR_DEVICE_ATTR(in4_min, S_IWUSR | S_IRUGO,
975 show_in_min, store_in_min, 4);
976 static SENSOR_DEVICE_ATTR(in5_min, S_IWUSR | S_IRUGO,
977 show_in_min, store_in_min, 5);
978 static SENSOR_DEVICE_ATTR(in6_min, S_IWUSR | S_IRUGO,
979 show_in_min, store_in_min, 6);
980 static SENSOR_DEVICE_ATTR(in7_min, S_IWUSR | S_IRUGO,
981 show_in_min, store_in_min, 7);
982 static SENSOR_DEVICE_ATTR(in8_min, S_IWUSR | S_IRUGO,
983 show_in_min, store_in_min, 8);
984 static SENSOR_DEVICE_ATTR(in0_max, S_IWUSR | S_IRUGO,
985 show_in_max, store_in_max, 0);
986 static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO,
987 show_in_max, store_in_max, 1);
988 static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO,
989 show_in_max, store_in_max, 2);
990 static SENSOR_DEVICE_ATTR(in3_max, S_IWUSR | S_IRUGO,
991 show_in_max, store_in_max, 3);
992 static SENSOR_DEVICE_ATTR(in4_max, S_IWUSR | S_IRUGO,
993 show_in_max, store_in_max, 4);
994 static SENSOR_DEVICE_ATTR(in5_max, S_IWUSR | S_IRUGO,
995 show_in_max, store_in_max, 5);
996 static SENSOR_DEVICE_ATTR(in6_max, S_IWUSR | S_IRUGO,
997 show_in_max, store_in_max, 6);
998 static SENSOR_DEVICE_ATTR(in7_max, S_IWUSR | S_IRUGO,
999 show_in_max, store_in_max, 7);
1000 static SENSOR_DEVICE_ATTR(in8_max, S_IWUSR | S_IRUGO,
1001 show_in_max, store_in_max, 8);
1002 static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp1, NULL, 0, 0);
1003 static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp23, NULL, 0, 0);
1004 static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp23, NULL, 1, 0);
1005 static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR,
1006 show_temp1, store_temp1, 0, 1);
1007 static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp23,
1008 store_temp23, 0, 2);
1009 static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp23,
1010 store_temp23, 1, 2);
1011 static SENSOR_DEVICE_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR,
1012 show_temp1, store_temp1, 0, 2);
1013 static SENSOR_DEVICE_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR,
1014 show_temp23, store_temp23, 0, 4);
1015 static SENSOR_DEVICE_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR,
1016 show_temp23, store_temp23, 1, 4);
1017 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
1018 static DEVICE_ATTR(chassis, S_IRUGO, show_regs_chassis, NULL);
1019 static DEVICE_ATTR(chassis_clear, S_IRUGO | S_IWUSR,
1020 show_chassis_clear, store_chassis_clear);
1021 static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0);
1022 static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1);
1023 static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2);
1024 static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO,
1025 show_pwmenable, store_pwmenable, 1);
1026 static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO,
1027 show_pwmenable, store_pwmenable, 2);
1028 static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO,
1029 show_pwmenable, store_pwmenable, 3);
1030 static SENSOR_DEVICE_ATTR(pwm1_mode, S_IWUSR | S_IRUGO,
1031 show_pwm_mode, store_pwm_mode, 0);
1032 static SENSOR_DEVICE_ATTR(pwm2_mode, S_IWUSR | S_IRUGO,
1033 show_pwm_mode, store_pwm_mode, 1);
1034 static SENSOR_DEVICE_ATTR(pwm3_mode, S_IWUSR | S_IRUGO,
1035 show_pwm_mode, store_pwm_mode, 2);
1036 static SENSOR_DEVICE_ATTR(tolerance1, S_IWUSR | S_IRUGO,
1037 show_tolerance, store_tolerance, 1);
1038 static SENSOR_DEVICE_ATTR(tolerance2, S_IWUSR | S_IRUGO,
1039 show_tolerance, store_tolerance, 2);
1040 static SENSOR_DEVICE_ATTR(tolerance3, S_IWUSR | S_IRUGO,
1041 show_tolerance, store_tolerance, 3);
1042 static SENSOR_DEVICE_ATTR(thermal_cruise1, S_IWUSR | S_IRUGO,
1043 show_thermal_cruise, store_thermal_cruise, 1);
1044 static SENSOR_DEVICE_ATTR(thermal_cruise2, S_IWUSR | S_IRUGO,
1045 show_thermal_cruise, store_thermal_cruise, 2);
1046 static SENSOR_DEVICE_ATTR(thermal_cruise3, S_IWUSR | S_IRUGO,
1047 show_thermal_cruise, store_thermal_cruise, 3);
1048 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan1, S_IRUGO | S_IWUSR,
1049 show_sf2_point, store_sf2_point, 1, 1);
1050 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan1, S_IRUGO | S_IWUSR,
1051 show_sf2_point, store_sf2_point, 2, 1);
1052 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan1, S_IRUGO | S_IWUSR,
1053 show_sf2_point, store_sf2_point, 3, 1);
1054 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan1, S_IRUGO | S_IWUSR,
1055 show_sf2_point, store_sf2_point, 4, 1);
1056 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan2, S_IRUGO | S_IWUSR,
1057 show_sf2_point, store_sf2_point, 1, 2);
1058 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan2, S_IRUGO | S_IWUSR,
1059 show_sf2_point, store_sf2_point, 2, 2);
1060 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan2, S_IRUGO | S_IWUSR,
1061 show_sf2_point, store_sf2_point, 3, 2);
1062 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan2, S_IRUGO | S_IWUSR,
1063 show_sf2_point, store_sf2_point, 4, 2);
1064 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan3, S_IRUGO | S_IWUSR,
1065 show_sf2_point, store_sf2_point, 1, 3);
1066 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan3, S_IRUGO | S_IWUSR,
1067 show_sf2_point, store_sf2_point, 2, 3);
1068 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan3, S_IRUGO | S_IWUSR,
1069 show_sf2_point, store_sf2_point, 3, 3);
1070 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan3, S_IRUGO | S_IWUSR,
1071 show_sf2_point, store_sf2_point, 4, 3);
1072 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan1, S_IRUGO | S_IWUSR,
1073 show_sf2_level, store_sf2_level, 1, 1);
1074 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan1, S_IRUGO | S_IWUSR,
1075 show_sf2_level, store_sf2_level, 2, 1);
1076 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan1, S_IRUGO | S_IWUSR,
1077 show_sf2_level, store_sf2_level, 3, 1);
1078 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan2, S_IRUGO | S_IWUSR,
1079 show_sf2_level, store_sf2_level, 1, 2);
1080 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan2, S_IRUGO | S_IWUSR,
1081 show_sf2_level, store_sf2_level, 2, 2);
1082 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan2, S_IRUGO | S_IWUSR,
1083 show_sf2_level, store_sf2_level, 3, 2);
1084 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan3, S_IRUGO | S_IWUSR,
1085 show_sf2_level, store_sf2_level, 1, 3);
1086 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan3, S_IRUGO | S_IWUSR,
1087 show_sf2_level, store_sf2_level, 2, 3);
1088 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan3, S_IRUGO | S_IWUSR,
1089 show_sf2_level, store_sf2_level, 3, 3);
1090 static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 1);
1091 static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 2);
1092 static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 3);
1093 static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 4);
1094 static SENSOR_DEVICE_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 5);
1095 static SENSOR_DEVICE_ATTR(fan6_input, S_IRUGO, show_fan, NULL, 6);
1096 static SENSOR_DEVICE_ATTR(fan7_input, S_IRUGO, show_fan, NULL, 7);
1097 static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO,
1098 show_fan_min, store_fan_min, 1);
1099 static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO,
1100 show_fan_min, store_fan_min, 2);
1101 static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO,
1102 show_fan_min, store_fan_min, 3);
1103 static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO,
1104 show_fan_min, store_fan_min, 4);
1105 static SENSOR_DEVICE_ATTR(fan5_min, S_IWUSR | S_IRUGO,
1106 show_fan_min, store_fan_min, 5);
1107 static SENSOR_DEVICE_ATTR(fan6_min, S_IWUSR | S_IRUGO,
1108 show_fan_min, store_fan_min, 6);
1109 static SENSOR_DEVICE_ATTR(fan7_min, S_IWUSR | S_IRUGO,
1110 show_fan_min, store_fan_min, 7);
1111 static SENSOR_DEVICE_ATTR(fan1_div, S_IWUSR | S_IRUGO,
1112 show_fan_div, store_fan_div, 1);
1113 static SENSOR_DEVICE_ATTR(fan2_div, S_IWUSR | S_IRUGO,
1114 show_fan_div, store_fan_div, 2);
1115 static SENSOR_DEVICE_ATTR(fan3_div, S_IWUSR | S_IRUGO,
1116 show_fan_div, store_fan_div, 3);
1117 static SENSOR_DEVICE_ATTR(fan4_div, S_IWUSR | S_IRUGO,
1118 show_fan_div, store_fan_div, 4);
1119 static SENSOR_DEVICE_ATTR(fan5_div, S_IWUSR | S_IRUGO,
1120 show_fan_div, store_fan_div, 5);
1121 static SENSOR_DEVICE_ATTR(fan6_div, S_IWUSR | S_IRUGO,
1122 show_fan_div, store_fan_div, 6);
1123 static SENSOR_DEVICE_ATTR(fan7_div, S_IWUSR | S_IRUGO,
1124 show_fan_div, store_fan_div, 7);
1125
1126 static struct attribute *w83792d_attributes_fan[4][4] = {
1127 {
1128 &sensor_dev_attr_fan4_input.dev_attr.attr,
1129 &sensor_dev_attr_fan4_min.dev_attr.attr,
1130 &sensor_dev_attr_fan4_div.dev_attr.attr,
1131 NULL
1132 }, {
1133 &sensor_dev_attr_fan5_input.dev_attr.attr,
1134 &sensor_dev_attr_fan5_min.dev_attr.attr,
1135 &sensor_dev_attr_fan5_div.dev_attr.attr,
1136 NULL
1137 }, {
1138 &sensor_dev_attr_fan6_input.dev_attr.attr,
1139 &sensor_dev_attr_fan6_min.dev_attr.attr,
1140 &sensor_dev_attr_fan6_div.dev_attr.attr,
1141 NULL
1142 }, {
1143 &sensor_dev_attr_fan7_input.dev_attr.attr,
1144 &sensor_dev_attr_fan7_min.dev_attr.attr,
1145 &sensor_dev_attr_fan7_div.dev_attr.attr,
1146 NULL
1147 }
1148 };
1149
1150 static const struct attribute_group w83792d_group_fan[4] = {
1151 { .attrs = w83792d_attributes_fan[0] },
1152 { .attrs = w83792d_attributes_fan[1] },
1153 { .attrs = w83792d_attributes_fan[2] },
1154 { .attrs = w83792d_attributes_fan[3] },
1155 };
1156
1157 static struct attribute *w83792d_attributes[] = {
1158 &sensor_dev_attr_in0_input.dev_attr.attr,
1159 &sensor_dev_attr_in0_max.dev_attr.attr,
1160 &sensor_dev_attr_in0_min.dev_attr.attr,
1161 &sensor_dev_attr_in1_input.dev_attr.attr,
1162 &sensor_dev_attr_in1_max.dev_attr.attr,
1163 &sensor_dev_attr_in1_min.dev_attr.attr,
1164 &sensor_dev_attr_in2_input.dev_attr.attr,
1165 &sensor_dev_attr_in2_max.dev_attr.attr,
1166 &sensor_dev_attr_in2_min.dev_attr.attr,
1167 &sensor_dev_attr_in3_input.dev_attr.attr,
1168 &sensor_dev_attr_in3_max.dev_attr.attr,
1169 &sensor_dev_attr_in3_min.dev_attr.attr,
1170 &sensor_dev_attr_in4_input.dev_attr.attr,
1171 &sensor_dev_attr_in4_max.dev_attr.attr,
1172 &sensor_dev_attr_in4_min.dev_attr.attr,
1173 &sensor_dev_attr_in5_input.dev_attr.attr,
1174 &sensor_dev_attr_in5_max.dev_attr.attr,
1175 &sensor_dev_attr_in5_min.dev_attr.attr,
1176 &sensor_dev_attr_in6_input.dev_attr.attr,
1177 &sensor_dev_attr_in6_max.dev_attr.attr,
1178 &sensor_dev_attr_in6_min.dev_attr.attr,
1179 &sensor_dev_attr_in7_input.dev_attr.attr,
1180 &sensor_dev_attr_in7_max.dev_attr.attr,
1181 &sensor_dev_attr_in7_min.dev_attr.attr,
1182 &sensor_dev_attr_in8_input.dev_attr.attr,
1183 &sensor_dev_attr_in8_max.dev_attr.attr,
1184 &sensor_dev_attr_in8_min.dev_attr.attr,
1185 &sensor_dev_attr_temp1_input.dev_attr.attr,
1186 &sensor_dev_attr_temp1_max.dev_attr.attr,
1187 &sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
1188 &sensor_dev_attr_temp2_input.dev_attr.attr,
1189 &sensor_dev_attr_temp2_max.dev_attr.attr,
1190 &sensor_dev_attr_temp2_max_hyst.dev_attr.attr,
1191 &sensor_dev_attr_temp3_input.dev_attr.attr,
1192 &sensor_dev_attr_temp3_max.dev_attr.attr,
1193 &sensor_dev_attr_temp3_max_hyst.dev_attr.attr,
1194 &sensor_dev_attr_pwm1.dev_attr.attr,
1195 &sensor_dev_attr_pwm1_mode.dev_attr.attr,
1196 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
1197 &sensor_dev_attr_pwm2.dev_attr.attr,
1198 &sensor_dev_attr_pwm2_mode.dev_attr.attr,
1199 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
1200 &sensor_dev_attr_pwm3.dev_attr.attr,
1201 &sensor_dev_attr_pwm3_mode.dev_attr.attr,
1202 &sensor_dev_attr_pwm3_enable.dev_attr.attr,
1203 &dev_attr_alarms.attr,
1204 &dev_attr_chassis.attr,
1205 &dev_attr_chassis_clear.attr,
1206 &sensor_dev_attr_tolerance1.dev_attr.attr,
1207 &sensor_dev_attr_thermal_cruise1.dev_attr.attr,
1208 &sensor_dev_attr_tolerance2.dev_attr.attr,
1209 &sensor_dev_attr_thermal_cruise2.dev_attr.attr,
1210 &sensor_dev_attr_tolerance3.dev_attr.attr,
1211 &sensor_dev_attr_thermal_cruise3.dev_attr.attr,
1212 &sensor_dev_attr_sf2_point1_fan1.dev_attr.attr,
1213 &sensor_dev_attr_sf2_point2_fan1.dev_attr.attr,
1214 &sensor_dev_attr_sf2_point3_fan1.dev_attr.attr,
1215 &sensor_dev_attr_sf2_point4_fan1.dev_attr.attr,
1216 &sensor_dev_attr_sf2_point1_fan2.dev_attr.attr,
1217 &sensor_dev_attr_sf2_point2_fan2.dev_attr.attr,
1218 &sensor_dev_attr_sf2_point3_fan2.dev_attr.attr,
1219 &sensor_dev_attr_sf2_point4_fan2.dev_attr.attr,
1220 &sensor_dev_attr_sf2_point1_fan3.dev_attr.attr,
1221 &sensor_dev_attr_sf2_point2_fan3.dev_attr.attr,
1222 &sensor_dev_attr_sf2_point3_fan3.dev_attr.attr,
1223 &sensor_dev_attr_sf2_point4_fan3.dev_attr.attr,
1224 &sensor_dev_attr_sf2_level1_fan1.dev_attr.attr,
1225 &sensor_dev_attr_sf2_level2_fan1.dev_attr.attr,
1226 &sensor_dev_attr_sf2_level3_fan1.dev_attr.attr,
1227 &sensor_dev_attr_sf2_level1_fan2.dev_attr.attr,
1228 &sensor_dev_attr_sf2_level2_fan2.dev_attr.attr,
1229 &sensor_dev_attr_sf2_level3_fan2.dev_attr.attr,
1230 &sensor_dev_attr_sf2_level1_fan3.dev_attr.attr,
1231 &sensor_dev_attr_sf2_level2_fan3.dev_attr.attr,
1232 &sensor_dev_attr_sf2_level3_fan3.dev_attr.attr,
1233 &sensor_dev_attr_fan1_input.dev_attr.attr,
1234 &sensor_dev_attr_fan1_min.dev_attr.attr,
1235 &sensor_dev_attr_fan1_div.dev_attr.attr,
1236 &sensor_dev_attr_fan2_input.dev_attr.attr,
1237 &sensor_dev_attr_fan2_min.dev_attr.attr,
1238 &sensor_dev_attr_fan2_div.dev_attr.attr,
1239 &sensor_dev_attr_fan3_input.dev_attr.attr,
1240 &sensor_dev_attr_fan3_min.dev_attr.attr,
1241 &sensor_dev_attr_fan3_div.dev_attr.attr,
1242 NULL
1243 };
1244
1245 static const struct attribute_group w83792d_group = {
1246 .attrs = w83792d_attributes,
1247 };
1248
1249 static int
1250 w83792d_detect(struct i2c_adapter *adapter, int address, int kind)
1251 {
1252 int i = 0, val1 = 0, val2;
1253 struct i2c_client *client;
1254 struct device *dev;
1255 struct w83792d_data *data;
1256 int err = 0;
1257 const char *client_name = "";
1258
1259 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
1260 goto ERROR0;
1261 }
1262
1263 /* OK. For now, we presume we have a valid client. We now create the
1264 client structure, even though we cannot fill it completely yet.
1265 But it allows us to access w83792d_{read,write}_value. */
1266
1267 if (!(data = kzalloc(sizeof(struct w83792d_data), GFP_KERNEL))) {
1268 err = -ENOMEM;
1269 goto ERROR0;
1270 }
1271
1272 client = &data->client;
1273 dev = &client->dev;
1274 i2c_set_clientdata(client, data);
1275 client->addr = address;
1276 client->adapter = adapter;
1277 client->driver = &w83792d_driver;
1278 client->flags = 0;
1279
1280 /* Now, we do the remaining detection. */
1281
1282 /* The w83792d may be stuck in some other bank than bank 0. This may
1283 make reading other information impossible. Specify a force=... or
1284 force_*=... parameter, and the Winbond will be reset to the right
1285 bank. */
1286 if (kind < 0) {
1287 if (w83792d_read_value(client, W83792D_REG_CONFIG) & 0x80) {
1288 dev_dbg(dev, "Detection failed at step 1\n");
1289 goto ERROR1;
1290 }
1291 val1 = w83792d_read_value(client, W83792D_REG_BANK);
1292 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN);
1293 /* Check for Winbond ID if in bank 0 */
1294 if (!(val1 & 0x07)) { /* is Bank0 */
1295 if (((!(val1 & 0x80)) && (val2 != 0xa3)) ||
1296 ((val1 & 0x80) && (val2 != 0x5c))) {
1297 dev_dbg(dev, "Detection failed at step 2\n");
1298 goto ERROR1;
1299 }
1300 }
1301 /* If Winbond chip, address of chip and W83792D_REG_I2C_ADDR
1302 should match */
1303 if (w83792d_read_value(client,
1304 W83792D_REG_I2C_ADDR) != address) {
1305 dev_dbg(dev, "Detection failed at step 3\n");
1306 goto ERROR1;
1307 }
1308 }
1309
1310 /* We have either had a force parameter, or we have already detected the
1311 Winbond. Put it now into bank 0 and Vendor ID High Byte */
1312 w83792d_write_value(client,
1313 W83792D_REG_BANK,
1314 (w83792d_read_value(client,
1315 W83792D_REG_BANK) & 0x78) | 0x80);
1316
1317 /* Determine the chip type. */
1318 if (kind <= 0) {
1319 /* get vendor ID */
1320 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN);
1321 if (val2 != 0x5c) { /* the vendor is NOT Winbond */
1322 goto ERROR1;
1323 }
1324 val1 = w83792d_read_value(client, W83792D_REG_WCHIPID);
1325 if (val1 == 0x7a) {
1326 kind = w83792d;
1327 } else {
1328 if (kind == 0)
1329 dev_warn(dev,
1330 "w83792d: Ignoring 'force' parameter for"
1331 " unknown chip at adapter %d, address"
1332 " 0x%02x\n", i2c_adapter_id(adapter),
1333 address);
1334 goto ERROR1;
1335 }
1336 }
1337
1338 if (kind == w83792d) {
1339 client_name = "w83792d";
1340 } else {
1341 dev_err(dev, "w83792d: Internal error: unknown"
1342 " kind (%d)?!?", kind);
1343 goto ERROR1;
1344 }
1345
1346 /* Fill in the remaining client fields and put into the global list */
1347 strlcpy(client->name, client_name, I2C_NAME_SIZE);
1348 data->type = kind;
1349
1350 data->valid = 0;
1351 mutex_init(&data->update_lock);
1352
1353 /* Tell the I2C layer a new client has arrived */
1354 if ((err = i2c_attach_client(client)))
1355 goto ERROR1;
1356
1357 if ((err = w83792d_detect_subclients(adapter, address,
1358 kind, client)))
1359 goto ERROR2;
1360
1361 /* Initialize the chip */
1362 w83792d_init_client(client);
1363
1364 /* A few vars need to be filled upon startup */
1365 for (i = 0; i < 7; i++) {
1366 data->fan_min[i] = w83792d_read_value(client,
1367 W83792D_REG_FAN_MIN[i]);
1368 }
1369
1370 /* Register sysfs hooks */
1371 if ((err = sysfs_create_group(&dev->kobj, &w83792d_group)))
1372 goto ERROR3;
1373
1374 /* Read GPIO enable register to check if pins for fan 4,5 are used as
1375 GPIO */
1376 val1 = w83792d_read_value(client, W83792D_REG_GPIO_EN);
1377
1378 if (!(val1 & 0x40))
1379 if ((err = sysfs_create_group(&dev->kobj,
1380 &w83792d_group_fan[0])))
1381 goto exit_remove_files;
1382
1383 if (!(val1 & 0x20))
1384 if ((err = sysfs_create_group(&dev->kobj,
1385 &w83792d_group_fan[1])))
1386 goto exit_remove_files;
1387
1388 val1 = w83792d_read_value(client, W83792D_REG_PIN);
1389 if (val1 & 0x40)
1390 if ((err = sysfs_create_group(&dev->kobj,
1391 &w83792d_group_fan[2])))
1392 goto exit_remove_files;
1393
1394 if (val1 & 0x04)
1395 if ((err = sysfs_create_group(&dev->kobj,
1396 &w83792d_group_fan[3])))
1397 goto exit_remove_files;
1398
1399 data->class_dev = hwmon_device_register(dev);
1400 if (IS_ERR(data->class_dev)) {
1401 err = PTR_ERR(data->class_dev);
1402 goto exit_remove_files;
1403 }
1404
1405 return 0;
1406
1407 exit_remove_files:
1408 sysfs_remove_group(&dev->kobj, &w83792d_group);
1409 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++)
1410 sysfs_remove_group(&dev->kobj, &w83792d_group_fan[i]);
1411 ERROR3:
1412 if (data->lm75[0] != NULL) {
1413 i2c_detach_client(data->lm75[0]);
1414 kfree(data->lm75[0]);
1415 }
1416 if (data->lm75[1] != NULL) {
1417 i2c_detach_client(data->lm75[1]);
1418 kfree(data->lm75[1]);
1419 }
1420 ERROR2:
1421 i2c_detach_client(client);
1422 ERROR1:
1423 kfree(data);
1424 ERROR0:
1425 return err;
1426 }
1427
1428 static int
1429 w83792d_detach_client(struct i2c_client *client)
1430 {
1431 struct w83792d_data *data = i2c_get_clientdata(client);
1432 int err, i;
1433
1434 /* main client */
1435 if (data) {
1436 hwmon_device_unregister(data->class_dev);
1437 sysfs_remove_group(&client->dev.kobj, &w83792d_group);
1438 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++)
1439 sysfs_remove_group(&client->dev.kobj,
1440 &w83792d_group_fan[i]);
1441 }
1442
1443 if ((err = i2c_detach_client(client)))
1444 return err;
1445
1446 /* main client */
1447 if (data)
1448 kfree(data);
1449 /* subclient */
1450 else
1451 kfree(client);
1452
1453 return 0;
1454 }
1455
1456 static void
1457 w83792d_init_client(struct i2c_client *client)
1458 {
1459 u8 temp2_cfg, temp3_cfg, vid_in_b;
1460
1461 if (init) {
1462 w83792d_write_value(client, W83792D_REG_CONFIG, 0x80);
1463 }
1464 /* Clear the bit6 of W83792D_REG_VID_IN_B(set it into 0):
1465 W83792D_REG_VID_IN_B bit6 = 0: the high/low limit of
1466 vin0/vin1 can be modified by user;
1467 W83792D_REG_VID_IN_B bit6 = 1: the high/low limit of
1468 vin0/vin1 auto-updated, can NOT be modified by user. */
1469 vid_in_b = w83792d_read_value(client, W83792D_REG_VID_IN_B);
1470 w83792d_write_value(client, W83792D_REG_VID_IN_B,
1471 vid_in_b & 0xbf);
1472
1473 temp2_cfg = w83792d_read_value(client, W83792D_REG_TEMP2_CONFIG);
1474 temp3_cfg = w83792d_read_value(client, W83792D_REG_TEMP3_CONFIG);
1475 w83792d_write_value(client, W83792D_REG_TEMP2_CONFIG,
1476 temp2_cfg & 0xe6);
1477 w83792d_write_value(client, W83792D_REG_TEMP3_CONFIG,
1478 temp3_cfg & 0xe6);
1479
1480 /* Start monitoring */
1481 w83792d_write_value(client, W83792D_REG_CONFIG,
1482 (w83792d_read_value(client,
1483 W83792D_REG_CONFIG) & 0xf7)
1484 | 0x01);
1485 }
1486
1487 static struct w83792d_data *w83792d_update_device(struct device *dev)
1488 {
1489 struct i2c_client *client = to_i2c_client(dev);
1490 struct w83792d_data *data = i2c_get_clientdata(client);
1491 int i, j;
1492 u8 reg_array_tmp[4], reg_tmp;
1493
1494 mutex_lock(&data->update_lock);
1495
1496 if (time_after
1497 (jiffies - data->last_updated, (unsigned long) (HZ * 3))
1498 || time_before(jiffies, data->last_updated) || !data->valid) {
1499 dev_dbg(dev, "Starting device update\n");
1500
1501 /* Update the voltages measured value and limits */
1502 for (i = 0; i < 9; i++) {
1503 data->in[i] = w83792d_read_value(client,
1504 W83792D_REG_IN[i]);
1505 data->in_max[i] = w83792d_read_value(client,
1506 W83792D_REG_IN_MAX[i]);
1507 data->in_min[i] = w83792d_read_value(client,
1508 W83792D_REG_IN_MIN[i]);
1509 }
1510 data->low_bits = w83792d_read_value(client,
1511 W83792D_REG_LOW_BITS1) +
1512 (w83792d_read_value(client,
1513 W83792D_REG_LOW_BITS2) << 8);
1514 for (i = 0; i < 7; i++) {
1515 /* Update the Fan measured value and limits */
1516 data->fan[i] = w83792d_read_value(client,
1517 W83792D_REG_FAN[i]);
1518 data->fan_min[i] = w83792d_read_value(client,
1519 W83792D_REG_FAN_MIN[i]);
1520 /* Update the PWM/DC Value and PWM/DC flag */
1521 data->pwm[i] = w83792d_read_value(client,
1522 W83792D_REG_PWM[i]);
1523 }
1524
1525 reg_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG);
1526 data->pwmenable[0] = reg_tmp & 0x03;
1527 data->pwmenable[1] = (reg_tmp>>2) & 0x03;
1528 data->pwmenable[2] = (reg_tmp>>4) & 0x03;
1529
1530 for (i = 0; i < 3; i++) {
1531 data->temp1[i] = w83792d_read_value(client,
1532 W83792D_REG_TEMP1[i]);
1533 }
1534 for (i = 0; i < 2; i++) {
1535 for (j = 0; j < 6; j++) {
1536 data->temp_add[i][j] = w83792d_read_value(
1537 client,W83792D_REG_TEMP_ADD[i][j]);
1538 }
1539 }
1540
1541 /* Update the Fan Divisor */
1542 for (i = 0; i < 4; i++) {
1543 reg_array_tmp[i] = w83792d_read_value(client,
1544 W83792D_REG_FAN_DIV[i]);
1545 }
1546 data->fan_div[0] = reg_array_tmp[0] & 0x07;
1547 data->fan_div[1] = (reg_array_tmp[0] >> 4) & 0x07;
1548 data->fan_div[2] = reg_array_tmp[1] & 0x07;
1549 data->fan_div[3] = (reg_array_tmp[1] >> 4) & 0x07;
1550 data->fan_div[4] = reg_array_tmp[2] & 0x07;
1551 data->fan_div[5] = (reg_array_tmp[2] >> 4) & 0x07;
1552 data->fan_div[6] = reg_array_tmp[3] & 0x07;
1553
1554 /* Update the realtime status */
1555 data->alarms = w83792d_read_value(client, W83792D_REG_ALARM1) +
1556 (w83792d_read_value(client, W83792D_REG_ALARM2) << 8) +
1557 (w83792d_read_value(client, W83792D_REG_ALARM3) << 16);
1558
1559 /* Update CaseOpen status and it's CLR_CHS. */
1560 data->chassis = (w83792d_read_value(client,
1561 W83792D_REG_CHASSIS) >> 5) & 0x01;
1562 data->chassis_clear = (w83792d_read_value(client,
1563 W83792D_REG_CHASSIS_CLR) >> 7) & 0x01;
1564
1565 /* Update Thermal Cruise/Smart Fan I target value */
1566 for (i = 0; i < 3; i++) {
1567 data->thermal_cruise[i] =
1568 w83792d_read_value(client,
1569 W83792D_REG_THERMAL[i]) & 0x7f;
1570 }
1571
1572 /* Update Smart Fan I/II tolerance */
1573 reg_tmp = w83792d_read_value(client, W83792D_REG_TOLERANCE[0]);
1574 data->tolerance[0] = reg_tmp & 0x0f;
1575 data->tolerance[1] = (reg_tmp >> 4) & 0x0f;
1576 data->tolerance[2] = w83792d_read_value(client,
1577 W83792D_REG_TOLERANCE[2]) & 0x0f;
1578
1579 /* Update Smart Fan II temperature points */
1580 for (i = 0; i < 3; i++) {
1581 for (j = 0; j < 4; j++) {
1582 data->sf2_points[i][j] = w83792d_read_value(
1583 client,W83792D_REG_POINTS[i][j]) & 0x7f;
1584 }
1585 }
1586
1587 /* Update Smart Fan II duty cycle levels */
1588 for (i = 0; i < 3; i++) {
1589 reg_tmp = w83792d_read_value(client,
1590 W83792D_REG_LEVELS[i][0]);
1591 data->sf2_levels[i][0] = reg_tmp & 0x0f;
1592 data->sf2_levels[i][1] = (reg_tmp >> 4) & 0x0f;
1593 reg_tmp = w83792d_read_value(client,
1594 W83792D_REG_LEVELS[i][2]);
1595 data->sf2_levels[i][2] = (reg_tmp >> 4) & 0x0f;
1596 data->sf2_levels[i][3] = reg_tmp & 0x0f;
1597 }
1598
1599 data->last_updated = jiffies;
1600 data->valid = 1;
1601 }
1602
1603 mutex_unlock(&data->update_lock);
1604
1605 #ifdef DEBUG
1606 w83792d_print_debug(data, dev);
1607 #endif
1608
1609 return data;
1610 }
1611
1612 #ifdef DEBUG
1613 static void w83792d_print_debug(struct w83792d_data *data, struct device *dev)
1614 {
1615 int i=0, j=0;
1616 dev_dbg(dev, "==========The following is the debug message...========\n");
1617 dev_dbg(dev, "9 set of Voltages: =====>\n");
1618 for (i=0; i<9; i++) {
1619 dev_dbg(dev, "vin[%d] is: 0x%x\n", i, data->in[i]);
1620 dev_dbg(dev, "vin[%d] max is: 0x%x\n", i, data->in_max[i]);
1621 dev_dbg(dev, "vin[%d] min is: 0x%x\n", i, data->in_min[i]);
1622 }
1623 dev_dbg(dev, "Low Bit1 is: 0x%x\n", data->low_bits & 0xff);
1624 dev_dbg(dev, "Low Bit2 is: 0x%x\n", data->low_bits >> 8);
1625 dev_dbg(dev, "7 set of Fan Counts and Duty Cycles: =====>\n");
1626 for (i=0; i<7; i++) {
1627 dev_dbg(dev, "fan[%d] is: 0x%x\n", i, data->fan[i]);
1628 dev_dbg(dev, "fan[%d] min is: 0x%x\n", i, data->fan_min[i]);
1629 dev_dbg(dev, "pwm[%d] is: 0x%x\n", i, data->pwm[i]);
1630 }
1631 dev_dbg(dev, "3 set of Temperatures: =====>\n");
1632 for (i=0; i<3; i++) {
1633 dev_dbg(dev, "temp1[%d] is: 0x%x\n", i, data->temp1[i]);
1634 }
1635
1636 for (i=0; i<2; i++) {
1637 for (j=0; j<6; j++) {
1638 dev_dbg(dev, "temp_add[%d][%d] is: 0x%x\n", i, j,
1639 data->temp_add[i][j]);
1640 }
1641 }
1642
1643 for (i=0; i<7; i++) {
1644 dev_dbg(dev, "fan_div[%d] is: 0x%x\n", i, data->fan_div[i]);
1645 }
1646 dev_dbg(dev, "==========End of the debug message...==================\n");
1647 dev_dbg(dev, "\n");
1648 }
1649 #endif
1650
1651 static int __init
1652 sensors_w83792d_init(void)
1653 {
1654 return i2c_add_driver(&w83792d_driver);
1655 }
1656
1657 static void __exit
1658 sensors_w83792d_exit(void)
1659 {
1660 i2c_del_driver(&w83792d_driver);
1661 }
1662
1663 MODULE_AUTHOR("Chunhao Huang @ Winbond <DZShen@Winbond.com.tw>");
1664 MODULE_DESCRIPTION("W83792AD/D driver for linux-2.6");
1665 MODULE_LICENSE("GPL");
1666
1667 module_init(sensors_w83792d_init);
1668 module_exit(sensors_w83792d_exit);
1669
Linux kernel - Deliverables
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