2 w83791d.c - Part of lm_sensors, Linux kernel modules for hardware
5 Copyright (C) 2006-2007 Charles Spirakis <bezaur@gmail.com>
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 Supports following chips:
25 Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA
26 w83791d 10 5 3 3 0x71 0x5ca3 yes no
28 The w83791d chip appears to be part way between the 83781d and the
29 83792d. Thus, this file is derived from both the w83792d.c and
32 The w83791g chip is the same as the w83791d but lead-free.
35 #include <linux/module.h>
36 #include <linux/init.h>
37 #include <linux/slab.h>
38 #include <linux/i2c.h>
39 #include <linux/hwmon.h>
40 #include <linux/hwmon-vid.h>
41 #include <linux/hwmon-sysfs.h>
42 #include <linux/err.h>
43 #include <linux/mutex.h>
45 #define NUMBER_OF_VIN 10
46 #define NUMBER_OF_FANIN 5
47 #define NUMBER_OF_TEMPIN 3
49 /* Addresses to scan */
50 static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f,
53 /* Insmod parameters */
54 I2C_CLIENT_INSMOD_1(w83791d);
55 I2C_CLIENT_MODULE_PARM(force_subclients, "List of subclient addresses: "
56 "{bus, clientaddr, subclientaddr1, subclientaddr2}");
59 module_param(reset, bool, 0);
60 MODULE_PARM_DESC(reset, "Set to one to force a hardware chip reset");
63 module_param(init, bool, 0);
64 MODULE_PARM_DESC(init, "Set to one to force extra software initialization");
66 /* The W83791D registers */
67 static const u8 W83791D_REG_IN[NUMBER_OF_VIN] = {
68 0x20, /* VCOREA in DataSheet */
69 0x21, /* VINR0 in DataSheet */
70 0x22, /* +3.3VIN in DataSheet */
71 0x23, /* VDD5V in DataSheet */
72 0x24, /* +12VIN in DataSheet */
73 0x25, /* -12VIN in DataSheet */
74 0x26, /* -5VIN in DataSheet */
75 0xB0, /* 5VSB in DataSheet */
76 0xB1, /* VBAT in DataSheet */
77 0xB2 /* VINR1 in DataSheet */
80 static const u8 W83791D_REG_IN_MAX[NUMBER_OF_VIN] = {
81 0x2B, /* VCOREA High Limit in DataSheet */
82 0x2D, /* VINR0 High Limit in DataSheet */
83 0x2F, /* +3.3VIN High Limit in DataSheet */
84 0x31, /* VDD5V High Limit in DataSheet */
85 0x33, /* +12VIN High Limit in DataSheet */
86 0x35, /* -12VIN High Limit in DataSheet */
87 0x37, /* -5VIN High Limit in DataSheet */
88 0xB4, /* 5VSB High Limit in DataSheet */
89 0xB6, /* VBAT High Limit in DataSheet */
90 0xB8 /* VINR1 High Limit in DataSheet */
92 static const u8 W83791D_REG_IN_MIN[NUMBER_OF_VIN] = {
93 0x2C, /* VCOREA Low Limit in DataSheet */
94 0x2E, /* VINR0 Low Limit in DataSheet */
95 0x30, /* +3.3VIN Low Limit in DataSheet */
96 0x32, /* VDD5V Low Limit in DataSheet */
97 0x34, /* +12VIN Low Limit in DataSheet */
98 0x36, /* -12VIN Low Limit in DataSheet */
99 0x38, /* -5VIN Low Limit in DataSheet */
100 0xB5, /* 5VSB Low Limit in DataSheet */
101 0xB7, /* VBAT Low Limit in DataSheet */
102 0xB9 /* VINR1 Low Limit in DataSheet */
104 static const u8 W83791D_REG_FAN[NUMBER_OF_FANIN] = {
105 0x28, /* FAN 1 Count in DataSheet */
106 0x29, /* FAN 2 Count in DataSheet */
107 0x2A, /* FAN 3 Count in DataSheet */
108 0xBA, /* FAN 4 Count in DataSheet */
109 0xBB, /* FAN 5 Count in DataSheet */
111 static const u8 W83791D_REG_FAN_MIN[NUMBER_OF_FANIN] = {
112 0x3B, /* FAN 1 Count Low Limit in DataSheet */
113 0x3C, /* FAN 2 Count Low Limit in DataSheet */
114 0x3D, /* FAN 3 Count Low Limit in DataSheet */
115 0xBC, /* FAN 4 Count Low Limit in DataSheet */
116 0xBD, /* FAN 5 Count Low Limit in DataSheet */
119 static const u8 W83791D_REG_FAN_CFG[2] = {
120 0x84, /* FAN 1/2 configuration */
121 0x95, /* FAN 3 configuration */
124 static const u8 W83791D_REG_FAN_DIV[3] = {
125 0x47, /* contains FAN1 and FAN2 Divisor */
126 0x4b, /* contains FAN3 Divisor */
127 0x5C, /* contains FAN4 and FAN5 Divisor */
130 #define W83791D_REG_BANK 0x4E
131 #define W83791D_REG_TEMP2_CONFIG 0xC2
132 #define W83791D_REG_TEMP3_CONFIG 0xCA
134 static const u8 W83791D_REG_TEMP1[3] = {
135 0x27, /* TEMP 1 in DataSheet */
136 0x39, /* TEMP 1 Over in DataSheet */
137 0x3A, /* TEMP 1 Hyst in DataSheet */
140 static const u8 W83791D_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 */
155 #define W83791D_REG_BEEP_CONFIG 0x4D
157 static const u8 W83791D_REG_BEEP_CTRL[3] = {
158 0x56, /* BEEP Control Register 1 */
159 0x57, /* BEEP Control Register 2 */
160 0xA3, /* BEEP Control Register 3 */
163 #define W83791D_REG_CONFIG 0x40
164 #define W83791D_REG_VID_FANDIV 0x47
165 #define W83791D_REG_DID_VID4 0x49
166 #define W83791D_REG_WCHIPID 0x58
167 #define W83791D_REG_CHIPMAN 0x4F
168 #define W83791D_REG_PIN 0x4B
169 #define W83791D_REG_I2C_SUBADDR 0x4A
171 #define W83791D_REG_ALARM1 0xA9 /* realtime status register1 */
172 #define W83791D_REG_ALARM2 0xAA /* realtime status register2 */
173 #define W83791D_REG_ALARM3 0xAB /* realtime status register3 */
175 #define W83791D_REG_VBAT 0x5D
176 #define W83791D_REG_I2C_ADDR 0x48
178 /* The SMBus locks itself. The Winbond W83791D has a bank select register
179 (index 0x4e), but the driver only accesses registers in bank 0. Since
180 we don't switch banks, we don't need any special code to handle
181 locking access between bank switches */
182 static inline int w83791d_read(struct i2c_client *client, u8 reg)
184 return i2c_smbus_read_byte_data(client, reg);
187 static inline int w83791d_write(struct i2c_client *client, u8 reg, u8 value)
189 return i2c_smbus_write_byte_data(client, reg, value);
192 /* The analog voltage inputs have 16mV LSB. Since the sysfs output is
193 in mV as would be measured on the chip input pin, need to just
194 multiply/divide by 16 to translate from/to register values. */
195 #define IN_TO_REG(val) (SENSORS_LIMIT((((val) + 8) / 16), 0, 255))
196 #define IN_FROM_REG(val) ((val) * 16)
198 static u8 fan_to_reg(long rpm, int div)
202 rpm = SENSORS_LIMIT(rpm, 1, 1000000);
203 return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 254);
206 #define FAN_FROM_REG(val,div) ((val) == 0 ? -1 : \
207 ((val) == 255 ? 0 : \
208 1350000 / ((val) * (div))))
210 /* for temp1 which is 8-bit resolution, LSB = 1 degree Celsius */
211 #define TEMP1_FROM_REG(val) ((val) * 1000)
212 #define TEMP1_TO_REG(val) ((val) <= -128000 ? -128 : \
213 (val) >= 127000 ? 127 : \
214 (val) < 0 ? ((val) - 500) / 1000 : \
215 ((val) + 500) / 1000)
217 /* for temp2 and temp3 which are 9-bit resolution, LSB = 0.5 degree Celsius
218 Assumes the top 8 bits are the integral amount and the bottom 8 bits
219 are the fractional amount. Since we only have 0.5 degree resolution,
220 the bottom 7 bits will always be zero */
221 #define TEMP23_FROM_REG(val) ((val) / 128 * 500)
222 #define TEMP23_TO_REG(val) ((val) <= -128000 ? 0x8000 : \
223 (val) >= 127500 ? 0x7F80 : \
224 (val) < 0 ? ((val) - 250) / 500 * 128 : \
225 ((val) + 250) / 500 * 128)
228 #define BEEP_MASK_TO_REG(val) ((val) & 0xffffff)
229 #define BEEP_MASK_FROM_REG(val) ((val) & 0xffffff)
231 #define DIV_FROM_REG(val) (1 << (val))
233 static u8 div_to_reg(int nr, long val)
238 /* first three fan's divisor max out at 8, rest max out at 128 */
239 max = (nr < 3) ? 8 : 128;
240 val = SENSORS_LIMIT(val, 1, max) >> 1;
241 for (i = 0; i < 7; i++) {
249 struct w83791d_data {
250 struct device *hwmon_dev;
251 struct mutex update_lock;
253 char valid; /* !=0 if following fields are valid */
254 unsigned long last_updated; /* In jiffies */
256 /* array of 2 pointers to subclients */
257 struct i2c_client *lm75[2];
260 u8 in[NUMBER_OF_VIN]; /* Register value */
261 u8 in_max[NUMBER_OF_VIN]; /* Register value */
262 u8 in_min[NUMBER_OF_VIN]; /* Register value */
265 u8 fan[NUMBER_OF_FANIN]; /* Register value */
266 u8 fan_min[NUMBER_OF_FANIN]; /* Register value */
267 u8 fan_div[NUMBER_OF_FANIN]; /* Register encoding, shifted right */
269 /* Temperature sensors */
271 s8 temp1[3]; /* current, over, thyst */
272 s16 temp_add[2][3]; /* fixed point value. Top 8 bits are the
273 integral part, bottom 8 bits are the
274 fractional part. We only use the top
275 9 bits as the resolution is only
276 to the 0.5 degree C...
277 two sensors with three values
281 u32 alarms; /* realtime status register encoding,combined */
282 u8 beep_enable; /* Global beep enable */
283 u32 beep_mask; /* Mask off specific beeps */
284 u8 vid; /* Register encoding, combined */
285 u8 vrm; /* hwmon-vid */
288 static int w83791d_probe(struct i2c_client *client,
289 const struct i2c_device_id *id);
290 static int w83791d_detect(struct i2c_client *client, int kind,
291 struct i2c_board_info *info);
292 static int w83791d_remove(struct i2c_client *client);
294 static int w83791d_read(struct i2c_client *client, u8 register);
295 static int w83791d_write(struct i2c_client *client, u8 register, u8 value);
296 static struct w83791d_data *w83791d_update_device(struct device *dev);
299 static void w83791d_print_debug(struct w83791d_data *data, struct device *dev);
302 static void w83791d_init_client(struct i2c_client *client);
304 static const struct i2c_device_id w83791d_id[] = {
305 { "w83791d", w83791d },
308 MODULE_DEVICE_TABLE(i2c, w83791d_id);
310 static struct i2c_driver w83791d_driver = {
311 .class = I2C_CLASS_HWMON,
315 .probe = w83791d_probe,
316 .remove = w83791d_remove,
317 .id_table = w83791d_id,
318 .detect = w83791d_detect,
319 .address_data = &addr_data,
322 /* following are the sysfs callback functions */
323 #define show_in_reg(reg) \
324 static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
327 struct sensor_device_attribute *sensor_attr = \
328 to_sensor_dev_attr(attr); \
329 struct w83791d_data *data = w83791d_update_device(dev); \
330 int nr = sensor_attr->index; \
331 return sprintf(buf,"%d\n", IN_FROM_REG(data->reg[nr])); \
338 #define store_in_reg(REG, reg) \
339 static ssize_t store_in_##reg(struct device *dev, \
340 struct device_attribute *attr, \
341 const char *buf, size_t count) \
343 struct sensor_device_attribute *sensor_attr = \
344 to_sensor_dev_attr(attr); \
345 struct i2c_client *client = to_i2c_client(dev); \
346 struct w83791d_data *data = i2c_get_clientdata(client); \
347 unsigned long val = simple_strtoul(buf, NULL, 10); \
348 int nr = sensor_attr->index; \
350 mutex_lock(&data->update_lock); \
351 data->in_##reg[nr] = IN_TO_REG(val); \
352 w83791d_write(client, W83791D_REG_IN_##REG[nr], data->in_##reg[nr]); \
353 mutex_unlock(&data->update_lock); \
357 store_in_reg(MIN, min);
358 store_in_reg(MAX, max);
360 static struct sensor_device_attribute sda_in_input[] = {
361 SENSOR_ATTR(in0_input, S_IRUGO, show_in, NULL, 0),
362 SENSOR_ATTR(in1_input, S_IRUGO, show_in, NULL, 1),
363 SENSOR_ATTR(in2_input, S_IRUGO, show_in, NULL, 2),
364 SENSOR_ATTR(in3_input, S_IRUGO, show_in, NULL, 3),
365 SENSOR_ATTR(in4_input, S_IRUGO, show_in, NULL, 4),
366 SENSOR_ATTR(in5_input, S_IRUGO, show_in, NULL, 5),
367 SENSOR_ATTR(in6_input, S_IRUGO, show_in, NULL, 6),
368 SENSOR_ATTR(in7_input, S_IRUGO, show_in, NULL, 7),
369 SENSOR_ATTR(in8_input, S_IRUGO, show_in, NULL, 8),
370 SENSOR_ATTR(in9_input, S_IRUGO, show_in, NULL, 9),
373 static struct sensor_device_attribute sda_in_min[] = {
374 SENSOR_ATTR(in0_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 0),
375 SENSOR_ATTR(in1_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 1),
376 SENSOR_ATTR(in2_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 2),
377 SENSOR_ATTR(in3_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 3),
378 SENSOR_ATTR(in4_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 4),
379 SENSOR_ATTR(in5_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 5),
380 SENSOR_ATTR(in6_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 6),
381 SENSOR_ATTR(in7_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 7),
382 SENSOR_ATTR(in8_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 8),
383 SENSOR_ATTR(in9_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 9),
386 static struct sensor_device_attribute sda_in_max[] = {
387 SENSOR_ATTR(in0_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 0),
388 SENSOR_ATTR(in1_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 1),
389 SENSOR_ATTR(in2_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 2),
390 SENSOR_ATTR(in3_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 3),
391 SENSOR_ATTR(in4_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 4),
392 SENSOR_ATTR(in5_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 5),
393 SENSOR_ATTR(in6_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 6),
394 SENSOR_ATTR(in7_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 7),
395 SENSOR_ATTR(in8_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 8),
396 SENSOR_ATTR(in9_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 9),
400 static ssize_t show_beep(struct device *dev, struct device_attribute *attr,
403 struct sensor_device_attribute *sensor_attr =
404 to_sensor_dev_attr(attr);
405 struct w83791d_data *data = w83791d_update_device(dev);
406 int bitnr = sensor_attr->index;
408 return sprintf(buf, "%d\n", (data->beep_mask >> bitnr) & 1);
411 static ssize_t store_beep(struct device *dev, struct device_attribute *attr,
412 const char *buf, size_t count)
414 struct sensor_device_attribute *sensor_attr =
415 to_sensor_dev_attr(attr);
416 struct i2c_client *client = to_i2c_client(dev);
417 struct w83791d_data *data = i2c_get_clientdata(client);
418 int bitnr = sensor_attr->index;
419 int bytenr = bitnr / 8;
420 long val = simple_strtol(buf, NULL, 10) ? 1 : 0;
422 mutex_lock(&data->update_lock);
424 data->beep_mask &= ~(0xff << (bytenr * 8));
425 data->beep_mask |= w83791d_read(client, W83791D_REG_BEEP_CTRL[bytenr])
428 data->beep_mask &= ~(1 << bitnr);
429 data->beep_mask |= val << bitnr;
431 w83791d_write(client, W83791D_REG_BEEP_CTRL[bytenr],
432 (data->beep_mask >> (bytenr * 8)) & 0xff);
434 mutex_unlock(&data->update_lock);
439 static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
442 struct sensor_device_attribute *sensor_attr =
443 to_sensor_dev_attr(attr);
444 struct w83791d_data *data = w83791d_update_device(dev);
445 int bitnr = sensor_attr->index;
447 return sprintf(buf, "%d\n", (data->alarms >> bitnr) & 1);
450 /* Note: The bitmask for the beep enable/disable is different than
451 the bitmask for the alarm. */
452 static struct sensor_device_attribute sda_in_beep[] = {
453 SENSOR_ATTR(in0_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 0),
454 SENSOR_ATTR(in1_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 13),
455 SENSOR_ATTR(in2_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 2),
456 SENSOR_ATTR(in3_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 3),
457 SENSOR_ATTR(in4_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 8),
458 SENSOR_ATTR(in5_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 9),
459 SENSOR_ATTR(in6_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 10),
460 SENSOR_ATTR(in7_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 16),
461 SENSOR_ATTR(in8_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 17),
462 SENSOR_ATTR(in9_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 14),
465 static struct sensor_device_attribute sda_in_alarm[] = {
466 SENSOR_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0),
467 SENSOR_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1),
468 SENSOR_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2),
469 SENSOR_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3),
470 SENSOR_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8),
471 SENSOR_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 9),
472 SENSOR_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 10),
473 SENSOR_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 19),
474 SENSOR_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 20),
475 SENSOR_ATTR(in9_alarm, S_IRUGO, show_alarm, NULL, 14),
478 #define show_fan_reg(reg) \
479 static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
482 struct sensor_device_attribute *sensor_attr = \
483 to_sensor_dev_attr(attr); \
484 struct w83791d_data *data = w83791d_update_device(dev); \
485 int nr = sensor_attr->index; \
486 return sprintf(buf,"%d\n", \
487 FAN_FROM_REG(data->reg[nr], DIV_FROM_REG(data->fan_div[nr]))); \
491 show_fan_reg(fan_min);
493 static ssize_t store_fan_min(struct device *dev, struct device_attribute *attr,
494 const char *buf, size_t count)
496 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
497 struct i2c_client *client = to_i2c_client(dev);
498 struct w83791d_data *data = i2c_get_clientdata(client);
499 unsigned long val = simple_strtoul(buf, NULL, 10);
500 int nr = sensor_attr->index;
502 mutex_lock(&data->update_lock);
503 data->fan_min[nr] = fan_to_reg(val, DIV_FROM_REG(data->fan_div[nr]));
504 w83791d_write(client, W83791D_REG_FAN_MIN[nr], data->fan_min[nr]);
505 mutex_unlock(&data->update_lock);
510 static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr,
513 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
514 int nr = sensor_attr->index;
515 struct w83791d_data *data = w83791d_update_device(dev);
516 return sprintf(buf, "%u\n", DIV_FROM_REG(data->fan_div[nr]));
519 /* Note: we save and restore the fan minimum here, because its value is
520 determined in part by the fan divisor. This follows the principle of
521 least suprise; the user doesn't expect the fan minimum to change just
522 because the divisor changed. */
523 static ssize_t store_fan_div(struct device *dev, struct device_attribute *attr,
524 const char *buf, size_t count)
526 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
527 struct i2c_client *client = to_i2c_client(dev);
528 struct w83791d_data *data = i2c_get_clientdata(client);
529 int nr = sensor_attr->index;
538 min = FAN_FROM_REG(data->fan_min[nr], DIV_FROM_REG(data->fan_div[nr]));
540 mutex_lock(&data->update_lock);
541 data->fan_div[nr] = div_to_reg(nr, simple_strtoul(buf, NULL, 10));
571 dev_warn(dev, "store_fan_div: Unexpected nr seen: %d\n", nr);
577 fan_div_reg = w83791d_read(client, W83791D_REG_FAN_DIV[indx])
579 tmp_fan_div = (data->fan_div[nr] << new_shift) & ~keep_mask;
581 w83791d_write(client, W83791D_REG_FAN_DIV[indx],
582 fan_div_reg | tmp_fan_div);
584 /* Restore fan_min */
585 data->fan_min[nr] = fan_to_reg(min, DIV_FROM_REG(data->fan_div[nr]));
586 w83791d_write(client, W83791D_REG_FAN_MIN[nr], data->fan_min[nr]);
591 mutex_unlock(&data->update_lock);
596 static struct sensor_device_attribute sda_fan_input[] = {
597 SENSOR_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0),
598 SENSOR_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1),
599 SENSOR_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2),
600 SENSOR_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3),
601 SENSOR_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 4),
604 static struct sensor_device_attribute sda_fan_min[] = {
605 SENSOR_ATTR(fan1_min, S_IWUSR | S_IRUGO,
606 show_fan_min, store_fan_min, 0),
607 SENSOR_ATTR(fan2_min, S_IWUSR | S_IRUGO,
608 show_fan_min, store_fan_min, 1),
609 SENSOR_ATTR(fan3_min, S_IWUSR | S_IRUGO,
610 show_fan_min, store_fan_min, 2),
611 SENSOR_ATTR(fan4_min, S_IWUSR | S_IRUGO,
612 show_fan_min, store_fan_min, 3),
613 SENSOR_ATTR(fan5_min, S_IWUSR | S_IRUGO,
614 show_fan_min, store_fan_min, 4),
617 static struct sensor_device_attribute sda_fan_div[] = {
618 SENSOR_ATTR(fan1_div, S_IWUSR | S_IRUGO,
619 show_fan_div, store_fan_div, 0),
620 SENSOR_ATTR(fan2_div, S_IWUSR | S_IRUGO,
621 show_fan_div, store_fan_div, 1),
622 SENSOR_ATTR(fan3_div, S_IWUSR | S_IRUGO,
623 show_fan_div, store_fan_div, 2),
624 SENSOR_ATTR(fan4_div, S_IWUSR | S_IRUGO,
625 show_fan_div, store_fan_div, 3),
626 SENSOR_ATTR(fan5_div, S_IWUSR | S_IRUGO,
627 show_fan_div, store_fan_div, 4),
630 static struct sensor_device_attribute sda_fan_beep[] = {
631 SENSOR_ATTR(fan1_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 6),
632 SENSOR_ATTR(fan2_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 7),
633 SENSOR_ATTR(fan3_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 11),
634 SENSOR_ATTR(fan4_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 21),
635 SENSOR_ATTR(fan5_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 22),
638 static struct sensor_device_attribute sda_fan_alarm[] = {
639 SENSOR_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 6),
640 SENSOR_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 7),
641 SENSOR_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 11),
642 SENSOR_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 21),
643 SENSOR_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 22),
646 /* read/write the temperature1, includes measured value and limits */
647 static ssize_t show_temp1(struct device *dev, struct device_attribute *devattr,
650 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
651 struct w83791d_data *data = w83791d_update_device(dev);
652 return sprintf(buf, "%d\n", TEMP1_FROM_REG(data->temp1[attr->index]));
655 static ssize_t store_temp1(struct device *dev, struct device_attribute *devattr,
656 const char *buf, size_t count)
658 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
659 struct i2c_client *client = to_i2c_client(dev);
660 struct w83791d_data *data = i2c_get_clientdata(client);
661 long val = simple_strtol(buf, NULL, 10);
662 int nr = attr->index;
664 mutex_lock(&data->update_lock);
665 data->temp1[nr] = TEMP1_TO_REG(val);
666 w83791d_write(client, W83791D_REG_TEMP1[nr], data->temp1[nr]);
667 mutex_unlock(&data->update_lock);
671 /* read/write temperature2-3, includes measured value and limits */
672 static ssize_t show_temp23(struct device *dev, struct device_attribute *devattr,
675 struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
676 struct w83791d_data *data = w83791d_update_device(dev);
678 int index = attr->index;
679 return sprintf(buf, "%d\n", TEMP23_FROM_REG(data->temp_add[nr][index]));
682 static ssize_t store_temp23(struct device *dev,
683 struct device_attribute *devattr,
684 const char *buf, size_t count)
686 struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
687 struct i2c_client *client = to_i2c_client(dev);
688 struct w83791d_data *data = i2c_get_clientdata(client);
689 long val = simple_strtol(buf, NULL, 10);
691 int index = attr->index;
693 mutex_lock(&data->update_lock);
694 data->temp_add[nr][index] = TEMP23_TO_REG(val);
695 w83791d_write(client, W83791D_REG_TEMP_ADD[nr][index * 2],
696 data->temp_add[nr][index] >> 8);
697 w83791d_write(client, W83791D_REG_TEMP_ADD[nr][index * 2 + 1],
698 data->temp_add[nr][index] & 0x80);
699 mutex_unlock(&data->update_lock);
704 static struct sensor_device_attribute_2 sda_temp_input[] = {
705 SENSOR_ATTR_2(temp1_input, S_IRUGO, show_temp1, NULL, 0, 0),
706 SENSOR_ATTR_2(temp2_input, S_IRUGO, show_temp23, NULL, 0, 0),
707 SENSOR_ATTR_2(temp3_input, S_IRUGO, show_temp23, NULL, 1, 0),
710 static struct sensor_device_attribute_2 sda_temp_max[] = {
711 SENSOR_ATTR_2(temp1_max, S_IRUGO | S_IWUSR,
712 show_temp1, store_temp1, 0, 1),
713 SENSOR_ATTR_2(temp2_max, S_IRUGO | S_IWUSR,
714 show_temp23, store_temp23, 0, 1),
715 SENSOR_ATTR_2(temp3_max, S_IRUGO | S_IWUSR,
716 show_temp23, store_temp23, 1, 1),
719 static struct sensor_device_attribute_2 sda_temp_max_hyst[] = {
720 SENSOR_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR,
721 show_temp1, store_temp1, 0, 2),
722 SENSOR_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR,
723 show_temp23, store_temp23, 0, 2),
724 SENSOR_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR,
725 show_temp23, store_temp23, 1, 2),
728 /* Note: The bitmask for the beep enable/disable is different than
729 the bitmask for the alarm. */
730 static struct sensor_device_attribute sda_temp_beep[] = {
731 SENSOR_ATTR(temp1_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 4),
732 SENSOR_ATTR(temp2_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 5),
733 SENSOR_ATTR(temp3_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 1),
736 static struct sensor_device_attribute sda_temp_alarm[] = {
737 SENSOR_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4),
738 SENSOR_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5),
739 SENSOR_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 13),
742 /* get reatime status of all sensors items: voltage, temp, fan */
743 static ssize_t show_alarms_reg(struct device *dev,
744 struct device_attribute *attr, char *buf)
746 struct w83791d_data *data = w83791d_update_device(dev);
747 return sprintf(buf, "%u\n", data->alarms);
750 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
754 #define GLOBAL_BEEP_ENABLE_SHIFT 15
755 #define GLOBAL_BEEP_ENABLE_MASK (1 << GLOBAL_BEEP_ENABLE_SHIFT)
757 static ssize_t show_beep_enable(struct device *dev,
758 struct device_attribute *attr, char *buf)
760 struct w83791d_data *data = w83791d_update_device(dev);
761 return sprintf(buf, "%d\n", data->beep_enable);
764 static ssize_t show_beep_mask(struct device *dev,
765 struct device_attribute *attr, char *buf)
767 struct w83791d_data *data = w83791d_update_device(dev);
768 return sprintf(buf, "%d\n", BEEP_MASK_FROM_REG(data->beep_mask));
772 static ssize_t store_beep_mask(struct device *dev,
773 struct device_attribute *attr,
774 const char *buf, size_t count)
776 struct i2c_client *client = to_i2c_client(dev);
777 struct w83791d_data *data = i2c_get_clientdata(client);
778 long val = simple_strtol(buf, NULL, 10);
781 mutex_lock(&data->update_lock);
783 /* The beep_enable state overrides any enabling request from
785 data->beep_mask = BEEP_MASK_TO_REG(val) & ~GLOBAL_BEEP_ENABLE_MASK;
786 data->beep_mask |= (data->beep_enable << GLOBAL_BEEP_ENABLE_SHIFT);
788 val = data->beep_mask;
790 for (i = 0; i < 3; i++) {
791 w83791d_write(client, W83791D_REG_BEEP_CTRL[i], (val & 0xff));
795 mutex_unlock(&data->update_lock);
800 static ssize_t store_beep_enable(struct device *dev,
801 struct device_attribute *attr,
802 const char *buf, size_t count)
804 struct i2c_client *client = to_i2c_client(dev);
805 struct w83791d_data *data = i2c_get_clientdata(client);
806 long val = simple_strtol(buf, NULL, 10);
808 mutex_lock(&data->update_lock);
810 data->beep_enable = val ? 1 : 0;
812 /* Keep the full mask value in sync with the current enable */
813 data->beep_mask &= ~GLOBAL_BEEP_ENABLE_MASK;
814 data->beep_mask |= (data->beep_enable << GLOBAL_BEEP_ENABLE_SHIFT);
816 /* The global control is in the second beep control register
817 so only need to update that register */
818 val = (data->beep_mask >> 8) & 0xff;
820 w83791d_write(client, W83791D_REG_BEEP_CTRL[1], val);
822 mutex_unlock(&data->update_lock);
827 static struct sensor_device_attribute sda_beep_ctrl[] = {
828 SENSOR_ATTR(beep_enable, S_IRUGO | S_IWUSR,
829 show_beep_enable, store_beep_enable, 0),
830 SENSOR_ATTR(beep_mask, S_IRUGO | S_IWUSR,
831 show_beep_mask, store_beep_mask, 1)
834 /* cpu voltage regulation information */
835 static ssize_t show_vid_reg(struct device *dev,
836 struct device_attribute *attr, char *buf)
838 struct w83791d_data *data = w83791d_update_device(dev);
839 return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm));
842 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
844 static ssize_t show_vrm_reg(struct device *dev,
845 struct device_attribute *attr, char *buf)
847 struct w83791d_data *data = dev_get_drvdata(dev);
848 return sprintf(buf, "%d\n", data->vrm);
851 static ssize_t store_vrm_reg(struct device *dev,
852 struct device_attribute *attr,
853 const char *buf, size_t count)
855 struct w83791d_data *data = dev_get_drvdata(dev);
857 /* No lock needed as vrm is internal to the driver
858 (not read from a chip register) and so is not
859 updated in w83791d_update_device() */
860 data->vrm = simple_strtoul(buf, NULL, 10);
865 static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
867 #define IN_UNIT_ATTRS(X) \
868 &sda_in_input[X].dev_attr.attr, \
869 &sda_in_min[X].dev_attr.attr, \
870 &sda_in_max[X].dev_attr.attr, \
871 &sda_in_beep[X].dev_attr.attr, \
872 &sda_in_alarm[X].dev_attr.attr
874 #define FAN_UNIT_ATTRS(X) \
875 &sda_fan_input[X].dev_attr.attr, \
876 &sda_fan_min[X].dev_attr.attr, \
877 &sda_fan_div[X].dev_attr.attr, \
878 &sda_fan_beep[X].dev_attr.attr, \
879 &sda_fan_alarm[X].dev_attr.attr
881 #define TEMP_UNIT_ATTRS(X) \
882 &sda_temp_input[X].dev_attr.attr, \
883 &sda_temp_max[X].dev_attr.attr, \
884 &sda_temp_max_hyst[X].dev_attr.attr, \
885 &sda_temp_beep[X].dev_attr.attr, \
886 &sda_temp_alarm[X].dev_attr.attr
888 static struct attribute *w83791d_attributes[] = {
907 &dev_attr_alarms.attr,
908 &sda_beep_ctrl[0].dev_attr.attr,
909 &sda_beep_ctrl[1].dev_attr.attr,
910 &dev_attr_cpu0_vid.attr,
915 static const struct attribute_group w83791d_group = {
916 .attrs = w83791d_attributes,
920 static int w83791d_detect_subclients(struct i2c_client *client)
922 struct i2c_adapter *adapter = client->adapter;
923 struct w83791d_data *data = i2c_get_clientdata(client);
924 int address = client->addr;
928 id = i2c_adapter_id(adapter);
929 if (force_subclients[0] == id && force_subclients[1] == address) {
930 for (i = 2; i <= 3; i++) {
931 if (force_subclients[i] < 0x48 ||
932 force_subclients[i] > 0x4f) {
933 dev_err(&client->dev,
935 "address %d; must be 0x48-0x4f\n",
936 force_subclients[i]);
941 w83791d_write(client, W83791D_REG_I2C_SUBADDR,
942 (force_subclients[2] & 0x07) |
943 ((force_subclients[3] & 0x07) << 4));
946 val = w83791d_read(client, W83791D_REG_I2C_SUBADDR);
948 data->lm75[0] = i2c_new_dummy(adapter, 0x48 + (val & 0x7));
951 if ((data->lm75[0] != NULL) &&
952 ((val & 0x7) == ((val >> 4) & 0x7))) {
953 dev_err(&client->dev,
954 "duplicate addresses 0x%x, "
955 "use force_subclient\n",
956 data->lm75[0]->addr);
960 data->lm75[1] = i2c_new_dummy(adapter,
961 0x48 + ((val >> 4) & 0x7));
966 /* Undo inits in case of errors */
969 if (data->lm75[0] != NULL)
970 i2c_unregister_device(data->lm75[0]);
976 /* Return 0 if detection is successful, -ENODEV otherwise */
977 static int w83791d_detect(struct i2c_client *client, int kind,
978 struct i2c_board_info *info)
980 struct i2c_adapter *adapter = client->adapter;
982 unsigned short address = client->addr;
984 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
988 /* The w83791d may be stuck in some other bank than bank 0. This may
989 make reading other information impossible. Specify a force=...
990 parameter, and the Winbond will be reset to the right bank. */
992 if (w83791d_read(client, W83791D_REG_CONFIG) & 0x80) {
995 val1 = w83791d_read(client, W83791D_REG_BANK);
996 val2 = w83791d_read(client, W83791D_REG_CHIPMAN);
997 /* Check for Winbond ID if in bank 0 */
998 if (!(val1 & 0x07)) {
999 /* yes it is Bank0 */
1000 if (((!(val1 & 0x80)) && (val2 != 0xa3)) ||
1001 ((val1 & 0x80) && (val2 != 0x5c))) {
1005 /* If Winbond chip, address of chip and W83791D_REG_I2C_ADDR
1007 if (w83791d_read(client, W83791D_REG_I2C_ADDR) != address) {
1012 /* We either have a force parameter or we have reason to
1013 believe it is a Winbond chip. Either way, we want bank 0 and
1014 Vendor ID high byte */
1015 val1 = w83791d_read(client, W83791D_REG_BANK) & 0x78;
1016 w83791d_write(client, W83791D_REG_BANK, val1 | 0x80);
1018 /* Verify it is a Winbond w83791d */
1021 val2 = w83791d_read(client, W83791D_REG_CHIPMAN);
1022 if (val2 != 0x5c) { /* the vendor is NOT Winbond */
1025 val1 = w83791d_read(client, W83791D_REG_WCHIPID);
1030 dev_warn(&adapter->dev,
1031 "w83791d: Ignoring 'force' parameter "
1032 "for unknown chip at adapter %d, "
1034 i2c_adapter_id(adapter), address);
1039 strlcpy(info->type, "w83791d", I2C_NAME_SIZE);
1044 static int w83791d_probe(struct i2c_client *client,
1045 const struct i2c_device_id *id)
1047 struct w83791d_data *data;
1048 struct device *dev = &client->dev;
1052 val1 = w83791d_read(client, W83791D_REG_DID_VID4);
1053 dev_dbg(dev, "Device ID version: %d.%d (0x%02x)\n",
1054 (val1 >> 5) & 0x07, (val1 >> 1) & 0x0f, val1);
1057 data = kzalloc(sizeof(struct w83791d_data), GFP_KERNEL);
1063 i2c_set_clientdata(client, data);
1064 mutex_init(&data->update_lock);
1066 err = w83791d_detect_subclients(client);
1070 /* Initialize the chip */
1071 w83791d_init_client(client);
1073 /* If the fan_div is changed, make sure there is a rational
1075 for (i = 0; i < NUMBER_OF_FANIN; i++) {
1076 data->fan_min[i] = w83791d_read(client, W83791D_REG_FAN_MIN[i]);
1079 /* Register sysfs hooks */
1080 if ((err = sysfs_create_group(&client->dev.kobj, &w83791d_group)))
1083 /* Everything is ready, now register the working device */
1084 data->hwmon_dev = hwmon_device_register(dev);
1085 if (IS_ERR(data->hwmon_dev)) {
1086 err = PTR_ERR(data->hwmon_dev);
1093 sysfs_remove_group(&client->dev.kobj, &w83791d_group);
1095 if (data->lm75[0] != NULL)
1096 i2c_unregister_device(data->lm75[0]);
1097 if (data->lm75[1] != NULL)
1098 i2c_unregister_device(data->lm75[1]);
1105 static int w83791d_remove(struct i2c_client *client)
1107 struct w83791d_data *data = i2c_get_clientdata(client);
1109 hwmon_device_unregister(data->hwmon_dev);
1110 sysfs_remove_group(&client->dev.kobj, &w83791d_group);
1112 if (data->lm75[0] != NULL)
1113 i2c_unregister_device(data->lm75[0]);
1114 if (data->lm75[1] != NULL)
1115 i2c_unregister_device(data->lm75[1]);
1121 static void w83791d_init_client(struct i2c_client *client)
1123 struct w83791d_data *data = i2c_get_clientdata(client);
1127 /* The difference between reset and init is that reset
1128 does a hard reset of the chip via index 0x40, bit 7,
1129 but init simply forces certain registers to have "sane"
1130 values. The hope is that the BIOS has done the right
1131 thing (which is why the default is reset=0, init=0),
1132 but if not, reset is the hard hammer and init
1133 is the soft mallet both of which are trying to whack
1134 things into place...
1135 NOTE: The data sheet makes a distinction between
1136 "power on defaults" and "reset by MR". As far as I can tell,
1137 the hard reset puts everything into a power-on state so I'm
1138 not sure what "reset by MR" means or how it can happen.
1140 if (reset || init) {
1141 /* keep some BIOS settings when we... */
1142 old_beep = w83791d_read(client, W83791D_REG_BEEP_CONFIG);
1145 /* ... reset the chip and ... */
1146 w83791d_write(client, W83791D_REG_CONFIG, 0x80);
1149 /* ... disable power-on abnormal beep */
1150 w83791d_write(client, W83791D_REG_BEEP_CONFIG, old_beep | 0x80);
1152 /* disable the global beep (not done by hard reset) */
1153 tmp = w83791d_read(client, W83791D_REG_BEEP_CTRL[1]);
1154 w83791d_write(client, W83791D_REG_BEEP_CTRL[1], tmp & 0xef);
1157 /* Make sure monitoring is turned on for add-ons */
1158 tmp = w83791d_read(client, W83791D_REG_TEMP2_CONFIG);
1160 w83791d_write(client, W83791D_REG_TEMP2_CONFIG,
1164 tmp = w83791d_read(client, W83791D_REG_TEMP3_CONFIG);
1166 w83791d_write(client, W83791D_REG_TEMP3_CONFIG,
1170 /* Start monitoring */
1171 tmp = w83791d_read(client, W83791D_REG_CONFIG) & 0xf7;
1172 w83791d_write(client, W83791D_REG_CONFIG, tmp | 0x01);
1176 data->vrm = vid_which_vrm();
1179 static struct w83791d_data *w83791d_update_device(struct device *dev)
1181 struct i2c_client *client = to_i2c_client(dev);
1182 struct w83791d_data *data = i2c_get_clientdata(client);
1184 u8 reg_array_tmp[3];
1186 mutex_lock(&data->update_lock);
1188 if (time_after(jiffies, data->last_updated + (HZ * 3))
1190 dev_dbg(dev, "Starting w83791d device update\n");
1192 /* Update the voltages measured value and limits */
1193 for (i = 0; i < NUMBER_OF_VIN; i++) {
1194 data->in[i] = w83791d_read(client,
1196 data->in_max[i] = w83791d_read(client,
1197 W83791D_REG_IN_MAX[i]);
1198 data->in_min[i] = w83791d_read(client,
1199 W83791D_REG_IN_MIN[i]);
1202 /* Update the fan counts and limits */
1203 for (i = 0; i < NUMBER_OF_FANIN; i++) {
1204 /* Update the Fan measured value and limits */
1205 data->fan[i] = w83791d_read(client,
1206 W83791D_REG_FAN[i]);
1207 data->fan_min[i] = w83791d_read(client,
1208 W83791D_REG_FAN_MIN[i]);
1211 /* Update the fan divisor */
1212 for (i = 0; i < 3; i++) {
1213 reg_array_tmp[i] = w83791d_read(client,
1214 W83791D_REG_FAN_DIV[i]);
1216 data->fan_div[0] = (reg_array_tmp[0] >> 4) & 0x03;
1217 data->fan_div[1] = (reg_array_tmp[0] >> 6) & 0x03;
1218 data->fan_div[2] = (reg_array_tmp[1] >> 6) & 0x03;
1219 data->fan_div[3] = reg_array_tmp[2] & 0x07;
1220 data->fan_div[4] = (reg_array_tmp[2] >> 4) & 0x07;
1222 /* Update the first temperature sensor */
1223 for (i = 0; i < 3; i++) {
1224 data->temp1[i] = w83791d_read(client,
1225 W83791D_REG_TEMP1[i]);
1228 /* Update the rest of the temperature sensors */
1229 for (i = 0; i < 2; i++) {
1230 for (j = 0; j < 3; j++) {
1231 data->temp_add[i][j] =
1232 (w83791d_read(client,
1233 W83791D_REG_TEMP_ADD[i][j * 2]) << 8) |
1234 w83791d_read(client,
1235 W83791D_REG_TEMP_ADD[i][j * 2 + 1]);
1239 /* Update the realtime status */
1241 w83791d_read(client, W83791D_REG_ALARM1) +
1242 (w83791d_read(client, W83791D_REG_ALARM2) << 8) +
1243 (w83791d_read(client, W83791D_REG_ALARM3) << 16);
1245 /* Update the beep configuration information */
1247 w83791d_read(client, W83791D_REG_BEEP_CTRL[0]) +
1248 (w83791d_read(client, W83791D_REG_BEEP_CTRL[1]) << 8) +
1249 (w83791d_read(client, W83791D_REG_BEEP_CTRL[2]) << 16);
1251 /* Extract global beep enable flag */
1253 (data->beep_mask >> GLOBAL_BEEP_ENABLE_SHIFT) & 0x01;
1255 /* Update the cpu voltage information */
1256 i = w83791d_read(client, W83791D_REG_VID_FANDIV);
1257 data->vid = i & 0x0f;
1258 data->vid |= (w83791d_read(client, W83791D_REG_DID_VID4) & 0x01)
1261 data->last_updated = jiffies;
1265 mutex_unlock(&data->update_lock);
1268 w83791d_print_debug(data, dev);
1275 static void w83791d_print_debug(struct w83791d_data *data, struct device *dev)
1279 dev_dbg(dev, "======Start of w83791d debug values======\n");
1280 dev_dbg(dev, "%d set of Voltages: ===>\n", NUMBER_OF_VIN);
1281 for (i = 0; i < NUMBER_OF_VIN; i++) {
1282 dev_dbg(dev, "vin[%d] is: 0x%02x\n", i, data->in[i]);
1283 dev_dbg(dev, "vin[%d] min is: 0x%02x\n", i, data->in_min[i]);
1284 dev_dbg(dev, "vin[%d] max is: 0x%02x\n", i, data->in_max[i]);
1286 dev_dbg(dev, "%d set of Fan Counts/Divisors: ===>\n", NUMBER_OF_FANIN);
1287 for (i = 0; i < NUMBER_OF_FANIN; i++) {
1288 dev_dbg(dev, "fan[%d] is: 0x%02x\n", i, data->fan[i]);
1289 dev_dbg(dev, "fan[%d] min is: 0x%02x\n", i, data->fan_min[i]);
1290 dev_dbg(dev, "fan_div[%d] is: 0x%02x\n", i, data->fan_div[i]);
1293 /* temperature math is signed, but only print out the
1295 dev_dbg(dev, "%d set of Temperatures: ===>\n", NUMBER_OF_TEMPIN);
1296 for (i = 0; i < 3; i++) {
1297 dev_dbg(dev, "temp1[%d] is: 0x%02x\n", i, (u8) data->temp1[i]);
1299 for (i = 0; i < 2; i++) {
1300 for (j = 0; j < 3; j++) {
1301 dev_dbg(dev, "temp_add[%d][%d] is: 0x%04x\n", i, j,
1302 (u16) data->temp_add[i][j]);
1306 dev_dbg(dev, "Misc Information: ===>\n");
1307 dev_dbg(dev, "alarm is: 0x%08x\n", data->alarms);
1308 dev_dbg(dev, "beep_mask is: 0x%08x\n", data->beep_mask);
1309 dev_dbg(dev, "beep_enable is: %d\n", data->beep_enable);
1310 dev_dbg(dev, "vid is: 0x%02x\n", data->vid);
1311 dev_dbg(dev, "vrm is: 0x%02x\n", data->vrm);
1312 dev_dbg(dev, "=======End of w83791d debug values========\n");
1317 static int __init sensors_w83791d_init(void)
1319 return i2c_add_driver(&w83791d_driver);
1322 static void __exit sensors_w83791d_exit(void)
1324 i2c_del_driver(&w83791d_driver);
1327 MODULE_AUTHOR("Charles Spirakis <bezaur@gmail.com>");
1328 MODULE_DESCRIPTION("W83791D driver");
1329 MODULE_LICENSE("GPL");
1331 module_init(sensors_w83791d_init);
1332 module_exit(sensors_w83791d_exit);