2 w83793.c - Linux kernel driver for hardware monitoring
3 Copyright (C) 2006 Winbond Electronics Corp.
5 Rudolf Marek <r.marek@assembler.cz>
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 - version 2.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
23 Supports following chips:
25 Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA
26 w83793 10 12 8 6 0x7b 0x5ca3 yes no
29 #include <linux/module.h>
30 #include <linux/init.h>
31 #include <linux/slab.h>
32 #include <linux/i2c.h>
33 #include <linux/hwmon.h>
34 #include <linux/hwmon-vid.h>
35 #include <linux/hwmon-sysfs.h>
36 #include <linux/err.h>
37 #include <linux/mutex.h>
39 /* Addresses to scan */
40 static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f,
43 /* Insmod parameters */
44 I2C_CLIENT_INSMOD_1(w83793);
46 static unsigned short force_subclients[4];
47 module_param_array(force_subclients, short, NULL, 0);
48 MODULE_PARM_DESC(force_subclients, "List of subclient addresses: "
49 "{bus, clientaddr, subclientaddr1, subclientaddr2}");
52 module_param(reset, bool, 0);
53 MODULE_PARM_DESC(reset, "Set to 1 to reset chip, not recommended");
56 Address 0x00, 0x0d, 0x0e, 0x0f in all three banks are reserved
57 as ID, Bank Select registers
59 #define W83793_REG_BANKSEL 0x00
60 #define W83793_REG_VENDORID 0x0d
61 #define W83793_REG_CHIPID 0x0e
62 #define W83793_REG_DEVICEID 0x0f
64 #define W83793_REG_CONFIG 0x40
65 #define W83793_REG_MFC 0x58
66 #define W83793_REG_FANIN_CTRL 0x5c
67 #define W83793_REG_FANIN_SEL 0x5d
68 #define W83793_REG_I2C_ADDR 0x0b
69 #define W83793_REG_I2C_SUBADDR 0x0c
70 #define W83793_REG_VID_INA 0x05
71 #define W83793_REG_VID_INB 0x06
72 #define W83793_REG_VID_LATCHA 0x07
73 #define W83793_REG_VID_LATCHB 0x08
74 #define W83793_REG_VID_CTRL 0x59
76 static u16 W83793_REG_TEMP_MODE[2] = { 0x5e, 0x5f };
80 #define TEMP_CRIT_HYST 2
82 #define TEMP_WARN_HYST 4
83 /* only crit and crit_hyst affect real-time alarm status
84 current crit crit_hyst warn warn_hyst */
85 static u16 W83793_REG_TEMP[][5] = {
86 {0x1c, 0x78, 0x79, 0x7a, 0x7b},
87 {0x1d, 0x7c, 0x7d, 0x7e, 0x7f},
88 {0x1e, 0x80, 0x81, 0x82, 0x83},
89 {0x1f, 0x84, 0x85, 0x86, 0x87},
90 {0x20, 0x88, 0x89, 0x8a, 0x8b},
91 {0x21, 0x8c, 0x8d, 0x8e, 0x8f},
94 #define W83793_REG_TEMP_LOW_BITS 0x22
96 #define W83793_REG_BEEP(index) (0x53 + (index))
97 #define W83793_REG_ALARM(index) (0x4b + (index))
99 #define W83793_REG_CLR_CHASSIS 0x4a /* SMI MASK4 */
100 #define W83793_REG_IRQ_CTRL 0x50
101 #define W83793_REG_OVT_CTRL 0x51
102 #define W83793_REG_OVT_BEEP 0x52
107 static const u16 W83793_REG_IN[][3] = {
108 /* Current, High, Low */
109 {0x10, 0x60, 0x61}, /* Vcore A */
110 {0x11, 0x62, 0x63}, /* Vcore B */
111 {0x12, 0x64, 0x65}, /* Vtt */
112 {0x14, 0x6a, 0x6b}, /* VSEN1 */
113 {0x15, 0x6c, 0x6d}, /* VSEN2 */
114 {0x16, 0x6e, 0x6f}, /* +3VSEN */
115 {0x17, 0x70, 0x71}, /* +12VSEN */
116 {0x18, 0x72, 0x73}, /* 5VDD */
117 {0x19, 0x74, 0x75}, /* 5VSB */
118 {0x1a, 0x76, 0x77}, /* VBAT */
121 /* Low Bits of Vcore A/B Vtt Read/High/Low */
122 static const u16 W83793_REG_IN_LOW_BITS[] = { 0x1b, 0x68, 0x69 };
123 static u8 scale_in[] = { 2, 2, 2, 16, 16, 16, 8, 24, 24, 16 };
124 static u8 scale_in_add[] = { 0, 0, 0, 0, 0, 0, 0, 150, 150, 0 };
126 #define W83793_REG_FAN(index) (0x23 + 2 * (index)) /* High byte */
127 #define W83793_REG_FAN_MIN(index) (0x90 + 2 * (index)) /* High byte */
129 #define W83793_REG_PWM_DEFAULT 0xb2
130 #define W83793_REG_PWM_ENABLE 0x207
131 #define W83793_REG_PWM_UPTIME 0xc3 /* Unit in 0.1 second */
132 #define W83793_REG_PWM_DOWNTIME 0xc4 /* Unit in 0.1 second */
133 #define W83793_REG_TEMP_CRITICAL 0xc5
137 #define PWM_NONSTOP 2
138 #define PWM_STOP_TIME 3
139 #define W83793_REG_PWM(index, nr) (((nr) == 0 ? 0xb3 : \
140 (nr) == 1 ? 0x220 : 0x218) + (index))
142 /* bit field, fan1 is bit0, fan2 is bit1 ... */
143 #define W83793_REG_TEMP_FAN_MAP(index) (0x201 + (index))
144 #define W83793_REG_TEMP_TOL(index) (0x208 + (index))
145 #define W83793_REG_TEMP_CRUISE(index) (0x210 + (index))
146 #define W83793_REG_PWM_STOP_TIME(index) (0x228 + (index))
147 #define W83793_REG_SF2_TEMP(index, nr) (0x230 + ((index) << 4) + (nr))
148 #define W83793_REG_SF2_PWM(index, nr) (0x238 + ((index) << 4) + (nr))
150 static inline unsigned long FAN_FROM_REG(u16 val)
152 if ((val >= 0xfff) || (val == 0))
154 return (1350000UL / val);
157 static inline u16 FAN_TO_REG(long rpm)
161 return SENSORS_LIMIT((1350000 + (rpm >> 1)) / rpm, 1, 0xffe);
164 static inline unsigned long TIME_FROM_REG(u8 reg)
169 static inline u8 TIME_TO_REG(unsigned long val)
171 return SENSORS_LIMIT((val + 50) / 100, 0, 0xff);
174 static inline long TEMP_FROM_REG(s8 reg)
179 static inline s8 TEMP_TO_REG(long val, s8 min, s8 max)
181 return SENSORS_LIMIT((val + (val < 0 ? -500 : 500)) / 1000, min, max);
185 struct i2c_client *lm75[2];
186 struct device *hwmon_dev;
187 struct mutex update_lock;
188 char valid; /* !=0 if following fields are valid */
189 unsigned long last_updated; /* In jiffies */
190 unsigned long last_nonvolatile; /* In jiffies, last time we update the
191 nonvolatile registers */
196 u8 in[10][3]; /* Register value, read/high/low */
197 u8 in_low_bits[3]; /* Additional resolution for VCore A/B Vtt */
199 u16 has_fan; /* Only fan1- fan5 has own pins */
200 u16 fan[12]; /* Register value combine */
201 u16 fan_min[12]; /* Register value combine */
203 s8 temp[6][5]; /* current, crit, crit_hyst,warn, warn_hyst */
204 u8 temp_low_bits; /* Additional resolution TD1-TD4 */
205 u8 temp_mode[2]; /* byte 0: Temp D1-D4 mode each has 2 bits
206 byte 1: Temp R1,R2 mode, each has 1 bit */
207 u8 temp_critical; /* If reached all fan will be at full speed */
208 u8 temp_fan_map[6]; /* Temp controls which pwm fan, bit field */
213 u8 pwm_enable; /* Register value, each Temp has 1 bit */
214 u8 pwm_uptime; /* Register value */
215 u8 pwm_downtime; /* Register value */
216 u8 pwm_default; /* All fan default pwm, next poweron valid */
217 u8 pwm[8][3]; /* Register value */
221 u8 alarms[5]; /* realtime status registers */
224 u8 tolerance[3]; /* Temp tolerance(Smart Fan I/II) */
225 u8 sf2_pwm[6][7]; /* Smart FanII: Fan duty cycle */
226 u8 sf2_temp[6][7]; /* Smart FanII: Temp level point */
229 static u8 w83793_read_value(struct i2c_client *client, u16 reg);
230 static int w83793_write_value(struct i2c_client *client, u16 reg, u8 value);
231 static int w83793_probe(struct i2c_client *client,
232 const struct i2c_device_id *id);
233 static int w83793_detect(struct i2c_client *client, int kind,
234 struct i2c_board_info *info);
235 static int w83793_remove(struct i2c_client *client);
236 static void w83793_init_client(struct i2c_client *client);
237 static void w83793_update_nonvolatile(struct device *dev);
238 static struct w83793_data *w83793_update_device(struct device *dev);
240 static const struct i2c_device_id w83793_id[] = {
241 { "w83793", w83793 },
244 MODULE_DEVICE_TABLE(i2c, w83793_id);
246 static struct i2c_driver w83793_driver = {
247 .class = I2C_CLASS_HWMON,
251 .probe = w83793_probe,
252 .remove = w83793_remove,
253 .id_table = w83793_id,
254 .detect = w83793_detect,
255 .address_data = &addr_data,
259 show_vrm(struct device *dev, struct device_attribute *attr, char *buf)
261 struct w83793_data *data = dev_get_drvdata(dev);
262 return sprintf(buf, "%d\n", data->vrm);
266 show_vid(struct device *dev, struct device_attribute *attr, char *buf)
268 struct w83793_data *data = w83793_update_device(dev);
269 struct sensor_device_attribute_2 *sensor_attr =
270 to_sensor_dev_attr_2(attr);
271 int index = sensor_attr->index;
273 return sprintf(buf, "%d\n", vid_from_reg(data->vid[index], data->vrm));
277 store_vrm(struct device *dev, struct device_attribute *attr,
278 const char *buf, size_t count)
280 struct w83793_data *data = dev_get_drvdata(dev);
281 data->vrm = simple_strtoul(buf, NULL, 10);
285 #define ALARM_STATUS 0
286 #define BEEP_ENABLE 1
288 show_alarm_beep(struct device *dev, struct device_attribute *attr, char *buf)
290 struct w83793_data *data = w83793_update_device(dev);
291 struct sensor_device_attribute_2 *sensor_attr =
292 to_sensor_dev_attr_2(attr);
293 int nr = sensor_attr->nr;
294 int index = sensor_attr->index >> 3;
295 int bit = sensor_attr->index & 0x07;
298 if (ALARM_STATUS == nr) {
299 val = (data->alarms[index] >> (bit)) & 1;
300 } else { /* BEEP_ENABLE */
301 val = (data->beeps[index] >> (bit)) & 1;
304 return sprintf(buf, "%u\n", val);
308 store_beep(struct device *dev, struct device_attribute *attr,
309 const char *buf, size_t count)
311 struct i2c_client *client = to_i2c_client(dev);
312 struct w83793_data *data = i2c_get_clientdata(client);
313 struct sensor_device_attribute_2 *sensor_attr =
314 to_sensor_dev_attr_2(attr);
315 int index = sensor_attr->index >> 3;
316 int shift = sensor_attr->index & 0x07;
317 u8 beep_bit = 1 << shift;
320 val = simple_strtoul(buf, NULL, 10);
321 if (val != 0 && val != 1)
324 mutex_lock(&data->update_lock);
325 data->beeps[index] = w83793_read_value(client, W83793_REG_BEEP(index));
326 data->beeps[index] &= ~beep_bit;
327 data->beeps[index] |= val << shift;
328 w83793_write_value(client, W83793_REG_BEEP(index), data->beeps[index]);
329 mutex_unlock(&data->update_lock);
335 show_beep_enable(struct device *dev, struct device_attribute *attr, char *buf)
337 struct w83793_data *data = w83793_update_device(dev);
338 return sprintf(buf, "%u\n", (data->beep_enable >> 1) & 0x01);
342 store_beep_enable(struct device *dev, struct device_attribute *attr,
343 const char *buf, size_t count)
345 struct i2c_client *client = to_i2c_client(dev);
346 struct w83793_data *data = i2c_get_clientdata(client);
347 u8 val = simple_strtoul(buf, NULL, 10);
349 if (val != 0 && val != 1)
352 mutex_lock(&data->update_lock);
353 data->beep_enable = w83793_read_value(client, W83793_REG_OVT_BEEP)
355 data->beep_enable |= val << 1;
356 w83793_write_value(client, W83793_REG_OVT_BEEP, data->beep_enable);
357 mutex_unlock(&data->update_lock);
362 /* Write any value to clear chassis alarm */
364 store_chassis_clear(struct device *dev,
365 struct device_attribute *attr, const char *buf,
368 struct i2c_client *client = to_i2c_client(dev);
369 struct w83793_data *data = i2c_get_clientdata(client);
372 mutex_lock(&data->update_lock);
373 val = w83793_read_value(client, W83793_REG_CLR_CHASSIS);
375 w83793_write_value(client, W83793_REG_CLR_CHASSIS, val);
376 mutex_unlock(&data->update_lock);
383 show_fan(struct device *dev, struct device_attribute *attr, char *buf)
385 struct sensor_device_attribute_2 *sensor_attr =
386 to_sensor_dev_attr_2(attr);
387 int nr = sensor_attr->nr;
388 int index = sensor_attr->index;
389 struct w83793_data *data = w83793_update_device(dev);
392 if (FAN_INPUT == nr) {
393 val = data->fan[index] & 0x0fff;
395 val = data->fan_min[index] & 0x0fff;
398 return sprintf(buf, "%lu\n", FAN_FROM_REG(val));
402 store_fan_min(struct device *dev, struct device_attribute *attr,
403 const char *buf, size_t count)
405 struct sensor_device_attribute_2 *sensor_attr =
406 to_sensor_dev_attr_2(attr);
407 int index = sensor_attr->index;
408 struct i2c_client *client = to_i2c_client(dev);
409 struct w83793_data *data = i2c_get_clientdata(client);
410 u16 val = FAN_TO_REG(simple_strtoul(buf, NULL, 10));
412 mutex_lock(&data->update_lock);
413 data->fan_min[index] = val;
414 w83793_write_value(client, W83793_REG_FAN_MIN(index),
416 w83793_write_value(client, W83793_REG_FAN_MIN(index) + 1, val & 0xff);
417 mutex_unlock(&data->update_lock);
423 show_pwm(struct device *dev, struct device_attribute *attr, char *buf)
425 struct sensor_device_attribute_2 *sensor_attr =
426 to_sensor_dev_attr_2(attr);
427 struct w83793_data *data = w83793_update_device(dev);
429 int nr = sensor_attr->nr;
430 int index = sensor_attr->index;
432 if (PWM_STOP_TIME == nr)
433 val = TIME_FROM_REG(data->pwm_stop_time[index]);
435 val = (data->pwm[index][nr] & 0x3f) << 2;
437 return sprintf(buf, "%d\n", val);
441 store_pwm(struct device *dev, struct device_attribute *attr,
442 const char *buf, size_t count)
444 struct i2c_client *client = to_i2c_client(dev);
445 struct w83793_data *data = i2c_get_clientdata(client);
446 struct sensor_device_attribute_2 *sensor_attr =
447 to_sensor_dev_attr_2(attr);
448 int nr = sensor_attr->nr;
449 int index = sensor_attr->index;
452 mutex_lock(&data->update_lock);
453 if (PWM_STOP_TIME == nr) {
454 val = TIME_TO_REG(simple_strtoul(buf, NULL, 10));
455 data->pwm_stop_time[index] = val;
456 w83793_write_value(client, W83793_REG_PWM_STOP_TIME(index),
459 val = SENSORS_LIMIT(simple_strtoul(buf, NULL, 10), 0, 0xff)
461 data->pwm[index][nr] =
462 w83793_read_value(client, W83793_REG_PWM(index, nr)) & 0xc0;
463 data->pwm[index][nr] |= val;
464 w83793_write_value(client, W83793_REG_PWM(index, nr),
465 data->pwm[index][nr]);
468 mutex_unlock(&data->update_lock);
473 show_temp(struct device *dev, struct device_attribute *attr, char *buf)
475 struct sensor_device_attribute_2 *sensor_attr =
476 to_sensor_dev_attr_2(attr);
477 int nr = sensor_attr->nr;
478 int index = sensor_attr->index;
479 struct w83793_data *data = w83793_update_device(dev);
480 long temp = TEMP_FROM_REG(data->temp[index][nr]);
482 if (TEMP_READ == nr && index < 4) { /* Only TD1-TD4 have low bits */
483 int low = ((data->temp_low_bits >> (index * 2)) & 0x03) * 250;
484 temp += temp > 0 ? low : -low;
486 return sprintf(buf, "%ld\n", temp);
490 store_temp(struct device *dev, struct device_attribute *attr,
491 const char *buf, size_t count)
493 struct sensor_device_attribute_2 *sensor_attr =
494 to_sensor_dev_attr_2(attr);
495 int nr = sensor_attr->nr;
496 int index = sensor_attr->index;
497 struct i2c_client *client = to_i2c_client(dev);
498 struct w83793_data *data = i2c_get_clientdata(client);
499 long tmp = simple_strtol(buf, NULL, 10);
501 mutex_lock(&data->update_lock);
502 data->temp[index][nr] = TEMP_TO_REG(tmp, -128, 127);
503 w83793_write_value(client, W83793_REG_TEMP[index][nr],
504 data->temp[index][nr]);
505 mutex_unlock(&data->update_lock);
511 each has 4 mode:(2 bits)
513 1: Use internal temp sensor(default)
515 3: Use sensor in Intel CPU and get result by PECI
518 each has 2 mode:(1 bit)
519 0: Disable temp sensor monitor
520 1: To enable temp sensors monitor
523 /* 0 disable, 6 PECI */
524 static u8 TO_TEMP_MODE[] = { 0, 0, 0, 6 };
527 show_temp_mode(struct device *dev, struct device_attribute *attr, char *buf)
529 struct w83793_data *data = w83793_update_device(dev);
530 struct sensor_device_attribute_2 *sensor_attr =
531 to_sensor_dev_attr_2(attr);
532 int index = sensor_attr->index;
533 u8 mask = (index < 4) ? 0x03 : 0x01;
534 u8 shift = (index < 4) ? (2 * index) : (index - 4);
536 index = (index < 4) ? 0 : 1;
538 tmp = (data->temp_mode[index] >> shift) & mask;
540 /* for the internal sensor, found out if diode or thermistor */
542 tmp = index == 0 ? 3 : 4;
544 tmp = TO_TEMP_MODE[tmp];
547 return sprintf(buf, "%d\n", tmp);
551 store_temp_mode(struct device *dev, struct device_attribute *attr,
552 const char *buf, size_t count)
554 struct i2c_client *client = to_i2c_client(dev);
555 struct w83793_data *data = i2c_get_clientdata(client);
556 struct sensor_device_attribute_2 *sensor_attr =
557 to_sensor_dev_attr_2(attr);
558 int index = sensor_attr->index;
559 u8 mask = (index < 4) ? 0x03 : 0x01;
560 u8 shift = (index < 4) ? (2 * index) : (index - 4);
561 u8 val = simple_strtoul(buf, NULL, 10);
563 /* transform the sysfs interface values into table above */
564 if ((val == 6) && (index < 4)) {
566 } else if ((val == 3 && index < 4)
567 || (val == 4 && index >= 4)) {
568 /* transform diode or thermistor into internal enable */
574 index = (index < 4) ? 0 : 1;
575 mutex_lock(&data->update_lock);
576 data->temp_mode[index] =
577 w83793_read_value(client, W83793_REG_TEMP_MODE[index]);
578 data->temp_mode[index] &= ~(mask << shift);
579 data->temp_mode[index] |= val << shift;
580 w83793_write_value(client, W83793_REG_TEMP_MODE[index],
581 data->temp_mode[index]);
582 mutex_unlock(&data->update_lock);
587 #define SETUP_PWM_DEFAULT 0
588 #define SETUP_PWM_UPTIME 1 /* Unit in 0.1s */
589 #define SETUP_PWM_DOWNTIME 2 /* Unit in 0.1s */
590 #define SETUP_TEMP_CRITICAL 3
592 show_sf_setup(struct device *dev, struct device_attribute *attr, char *buf)
594 struct sensor_device_attribute_2 *sensor_attr =
595 to_sensor_dev_attr_2(attr);
596 int nr = sensor_attr->nr;
597 struct w83793_data *data = w83793_update_device(dev);
600 if (SETUP_PWM_DEFAULT == nr) {
601 val = (data->pwm_default & 0x3f) << 2;
602 } else if (SETUP_PWM_UPTIME == nr) {
603 val = TIME_FROM_REG(data->pwm_uptime);
604 } else if (SETUP_PWM_DOWNTIME == nr) {
605 val = TIME_FROM_REG(data->pwm_downtime);
606 } else if (SETUP_TEMP_CRITICAL == nr) {
607 val = TEMP_FROM_REG(data->temp_critical & 0x7f);
610 return sprintf(buf, "%d\n", val);
614 store_sf_setup(struct device *dev, struct device_attribute *attr,
615 const char *buf, size_t count)
617 struct sensor_device_attribute_2 *sensor_attr =
618 to_sensor_dev_attr_2(attr);
619 int nr = sensor_attr->nr;
620 struct i2c_client *client = to_i2c_client(dev);
621 struct w83793_data *data = i2c_get_clientdata(client);
623 mutex_lock(&data->update_lock);
624 if (SETUP_PWM_DEFAULT == nr) {
626 w83793_read_value(client, W83793_REG_PWM_DEFAULT) & 0xc0;
627 data->pwm_default |= SENSORS_LIMIT(simple_strtoul(buf, NULL,
630 w83793_write_value(client, W83793_REG_PWM_DEFAULT,
632 } else if (SETUP_PWM_UPTIME == nr) {
633 data->pwm_uptime = TIME_TO_REG(simple_strtoul(buf, NULL, 10));
634 data->pwm_uptime += data->pwm_uptime == 0 ? 1 : 0;
635 w83793_write_value(client, W83793_REG_PWM_UPTIME,
637 } else if (SETUP_PWM_DOWNTIME == nr) {
638 data->pwm_downtime = TIME_TO_REG(simple_strtoul(buf, NULL, 10));
639 data->pwm_downtime += data->pwm_downtime == 0 ? 1 : 0;
640 w83793_write_value(client, W83793_REG_PWM_DOWNTIME,
642 } else { /* SETUP_TEMP_CRITICAL */
643 data->temp_critical =
644 w83793_read_value(client, W83793_REG_TEMP_CRITICAL) & 0x80;
645 data->temp_critical |= TEMP_TO_REG(simple_strtol(buf, NULL, 10),
647 w83793_write_value(client, W83793_REG_TEMP_CRITICAL,
648 data->temp_critical);
651 mutex_unlock(&data->update_lock);
656 Temp SmartFan control
658 Temp channel control which pwm fan, bitfield, bit 0 indicate pwm1...
659 It's possible two or more temp channels control the same fan, w83793
660 always prefers to pick the most critical request and applies it to
662 It's possible one fan is not in any mapping of 6 temp channels, this
663 means the fan is manual mode
666 Each temp channel has its own SmartFan mode, and temp channel
667 control fans that are set by TEMP_FAN_MAP
669 1: Thermal Cruise Mode
672 Target temperature in thermal cruise mode, w83793 will try to turn
673 fan speed to keep the temperature of target device around this
677 If Temp higher or lower than target with this tolerance, w83793
678 will take actions to speed up or slow down the fan to keep the
679 temperature within the tolerance range.
682 #define TEMP_FAN_MAP 0
683 #define TEMP_PWM_ENABLE 1
684 #define TEMP_CRUISE 2
685 #define TEMP_TOLERANCE 3
687 show_sf_ctrl(struct device *dev, struct device_attribute *attr, char *buf)
689 struct sensor_device_attribute_2 *sensor_attr =
690 to_sensor_dev_attr_2(attr);
691 int nr = sensor_attr->nr;
692 int index = sensor_attr->index;
693 struct w83793_data *data = w83793_update_device(dev);
696 if (TEMP_FAN_MAP == nr) {
697 val = data->temp_fan_map[index];
698 } else if (TEMP_PWM_ENABLE == nr) {
699 /* +2 to transfrom into 2 and 3 to conform with sysfs intf */
700 val = ((data->pwm_enable >> index) & 0x01) + 2;
701 } else if (TEMP_CRUISE == nr) {
702 val = TEMP_FROM_REG(data->temp_cruise[index] & 0x7f);
703 } else { /* TEMP_TOLERANCE */
704 val = data->tolerance[index >> 1] >> ((index & 0x01) ? 4 : 0);
705 val = TEMP_FROM_REG(val & 0x0f);
707 return sprintf(buf, "%d\n", val);
711 store_sf_ctrl(struct device *dev, struct device_attribute *attr,
712 const char *buf, size_t count)
714 struct sensor_device_attribute_2 *sensor_attr =
715 to_sensor_dev_attr_2(attr);
716 int nr = sensor_attr->nr;
717 int index = sensor_attr->index;
718 struct i2c_client *client = to_i2c_client(dev);
719 struct w83793_data *data = i2c_get_clientdata(client);
722 mutex_lock(&data->update_lock);
723 if (TEMP_FAN_MAP == nr) {
724 val = simple_strtoul(buf, NULL, 10) & 0xff;
725 w83793_write_value(client, W83793_REG_TEMP_FAN_MAP(index), val);
726 data->temp_fan_map[index] = val;
727 } else if (TEMP_PWM_ENABLE == nr) {
728 val = simple_strtoul(buf, NULL, 10);
729 if (2 == val || 3 == val) {
731 w83793_read_value(client, W83793_REG_PWM_ENABLE);
733 data->pwm_enable |= 1 << index;
735 data->pwm_enable &= ~(1 << index);
736 w83793_write_value(client, W83793_REG_PWM_ENABLE,
739 mutex_unlock(&data->update_lock);
742 } else if (TEMP_CRUISE == nr) {
743 data->temp_cruise[index] =
744 w83793_read_value(client, W83793_REG_TEMP_CRUISE(index));
745 val = TEMP_TO_REG(simple_strtol(buf, NULL, 10), 0, 0x7f);
746 data->temp_cruise[index] &= 0x80;
747 data->temp_cruise[index] |= val;
749 w83793_write_value(client, W83793_REG_TEMP_CRUISE(index),
750 data->temp_cruise[index]);
751 } else { /* TEMP_TOLERANCE */
753 u8 shift = (index & 0x01) ? 4 : 0;
755 w83793_read_value(client, W83793_REG_TEMP_TOL(i));
757 val = TEMP_TO_REG(simple_strtol(buf, NULL, 10), 0, 0x0f);
758 data->tolerance[i] &= ~(0x0f << shift);
759 data->tolerance[i] |= val << shift;
760 w83793_write_value(client, W83793_REG_TEMP_TOL(i),
764 mutex_unlock(&data->update_lock);
769 show_sf2_pwm(struct device *dev, struct device_attribute *attr, char *buf)
771 struct sensor_device_attribute_2 *sensor_attr =
772 to_sensor_dev_attr_2(attr);
773 int nr = sensor_attr->nr;
774 int index = sensor_attr->index;
775 struct w83793_data *data = w83793_update_device(dev);
777 return sprintf(buf, "%d\n", (data->sf2_pwm[index][nr] & 0x3f) << 2);
781 store_sf2_pwm(struct device *dev, struct device_attribute *attr,
782 const char *buf, size_t count)
784 struct i2c_client *client = to_i2c_client(dev);
785 struct w83793_data *data = i2c_get_clientdata(client);
786 struct sensor_device_attribute_2 *sensor_attr =
787 to_sensor_dev_attr_2(attr);
788 int nr = sensor_attr->nr;
789 int index = sensor_attr->index;
790 u8 val = SENSORS_LIMIT(simple_strtoul(buf, NULL, 10), 0, 0xff) >> 2;
792 mutex_lock(&data->update_lock);
793 data->sf2_pwm[index][nr] =
794 w83793_read_value(client, W83793_REG_SF2_PWM(index, nr)) & 0xc0;
795 data->sf2_pwm[index][nr] |= val;
796 w83793_write_value(client, W83793_REG_SF2_PWM(index, nr),
797 data->sf2_pwm[index][nr]);
798 mutex_unlock(&data->update_lock);
803 show_sf2_temp(struct device *dev, struct device_attribute *attr, char *buf)
805 struct sensor_device_attribute_2 *sensor_attr =
806 to_sensor_dev_attr_2(attr);
807 int nr = sensor_attr->nr;
808 int index = sensor_attr->index;
809 struct w83793_data *data = w83793_update_device(dev);
811 return sprintf(buf, "%ld\n",
812 TEMP_FROM_REG(data->sf2_temp[index][nr] & 0x7f));
816 store_sf2_temp(struct device *dev, struct device_attribute *attr,
817 const char *buf, size_t count)
819 struct i2c_client *client = to_i2c_client(dev);
820 struct w83793_data *data = i2c_get_clientdata(client);
821 struct sensor_device_attribute_2 *sensor_attr =
822 to_sensor_dev_attr_2(attr);
823 int nr = sensor_attr->nr;
824 int index = sensor_attr->index;
825 u8 val = TEMP_TO_REG(simple_strtol(buf, NULL, 10), 0, 0x7f);
827 mutex_lock(&data->update_lock);
828 data->sf2_temp[index][nr] =
829 w83793_read_value(client, W83793_REG_SF2_TEMP(index, nr)) & 0x80;
830 data->sf2_temp[index][nr] |= val;
831 w83793_write_value(client, W83793_REG_SF2_TEMP(index, nr),
832 data->sf2_temp[index][nr]);
833 mutex_unlock(&data->update_lock);
837 /* only Vcore A/B and Vtt have additional 2 bits precision */
839 show_in(struct device *dev, struct device_attribute *attr, char *buf)
841 struct sensor_device_attribute_2 *sensor_attr =
842 to_sensor_dev_attr_2(attr);
843 int nr = sensor_attr->nr;
844 int index = sensor_attr->index;
845 struct w83793_data *data = w83793_update_device(dev);
846 u16 val = data->in[index][nr];
850 val += (data->in_low_bits[nr] >> (index * 2)) & 0x3;
852 /* voltage inputs 5VDD and 5VSB needs 150mV offset */
853 val = val * scale_in[index] + scale_in_add[index];
854 return sprintf(buf, "%d\n", val);
858 store_in(struct device *dev, struct device_attribute *attr,
859 const char *buf, size_t count)
861 struct sensor_device_attribute_2 *sensor_attr =
862 to_sensor_dev_attr_2(attr);
863 int nr = sensor_attr->nr;
864 int index = sensor_attr->index;
865 struct i2c_client *client = to_i2c_client(dev);
866 struct w83793_data *data = i2c_get_clientdata(client);
870 (simple_strtoul(buf, NULL, 10) +
871 scale_in[index] / 2) / scale_in[index];
872 mutex_lock(&data->update_lock);
874 /* fix the limit values of 5VDD and 5VSB to ALARM mechanism */
875 if (1 == nr || 2 == nr) {
876 val -= scale_in_add[index] / scale_in[index];
878 val = SENSORS_LIMIT(val, 0, 255);
880 val = SENSORS_LIMIT(val, 0, 0x3FF);
881 data->in_low_bits[nr] =
882 w83793_read_value(client, W83793_REG_IN_LOW_BITS[nr]);
883 data->in_low_bits[nr] &= ~(0x03 << (2 * index));
884 data->in_low_bits[nr] |= (val & 0x03) << (2 * index);
885 w83793_write_value(client, W83793_REG_IN_LOW_BITS[nr],
886 data->in_low_bits[nr]);
889 data->in[index][nr] = val;
890 w83793_write_value(client, W83793_REG_IN[index][nr],
891 data->in[index][nr]);
892 mutex_unlock(&data->update_lock);
898 #define SENSOR_ATTR_IN(index) \
899 SENSOR_ATTR_2(in##index##_input, S_IRUGO, show_in, NULL, \
901 SENSOR_ATTR_2(in##index##_max, S_IRUGO | S_IWUSR, show_in, \
902 store_in, IN_MAX, index), \
903 SENSOR_ATTR_2(in##index##_min, S_IRUGO | S_IWUSR, show_in, \
904 store_in, IN_LOW, index), \
905 SENSOR_ATTR_2(in##index##_alarm, S_IRUGO, show_alarm_beep, \
906 NULL, ALARM_STATUS, index + ((index > 2) ? 1 : 0)), \
907 SENSOR_ATTR_2(in##index##_beep, S_IWUSR | S_IRUGO, \
908 show_alarm_beep, store_beep, BEEP_ENABLE, \
909 index + ((index > 2) ? 1 : 0))
911 #define SENSOR_ATTR_FAN(index) \
912 SENSOR_ATTR_2(fan##index##_alarm, S_IRUGO, show_alarm_beep, \
913 NULL, ALARM_STATUS, index + 17), \
914 SENSOR_ATTR_2(fan##index##_beep, S_IWUSR | S_IRUGO, \
915 show_alarm_beep, store_beep, BEEP_ENABLE, index + 17), \
916 SENSOR_ATTR_2(fan##index##_input, S_IRUGO, show_fan, \
917 NULL, FAN_INPUT, index - 1), \
918 SENSOR_ATTR_2(fan##index##_min, S_IWUSR | S_IRUGO, \
919 show_fan, store_fan_min, FAN_MIN, index - 1)
921 #define SENSOR_ATTR_PWM(index) \
922 SENSOR_ATTR_2(pwm##index, S_IWUSR | S_IRUGO, show_pwm, \
923 store_pwm, PWM_DUTY, index - 1), \
924 SENSOR_ATTR_2(pwm##index##_nonstop, S_IWUSR | S_IRUGO, \
925 show_pwm, store_pwm, PWM_NONSTOP, index - 1), \
926 SENSOR_ATTR_2(pwm##index##_start, S_IWUSR | S_IRUGO, \
927 show_pwm, store_pwm, PWM_START, index - 1), \
928 SENSOR_ATTR_2(pwm##index##_stop_time, S_IWUSR | S_IRUGO, \
929 show_pwm, store_pwm, PWM_STOP_TIME, index - 1)
931 #define SENSOR_ATTR_TEMP(index) \
932 SENSOR_ATTR_2(temp##index##_type, S_IRUGO | S_IWUSR, \
933 show_temp_mode, store_temp_mode, NOT_USED, index - 1), \
934 SENSOR_ATTR_2(temp##index##_input, S_IRUGO, show_temp, \
935 NULL, TEMP_READ, index - 1), \
936 SENSOR_ATTR_2(temp##index##_max, S_IRUGO | S_IWUSR, show_temp, \
937 store_temp, TEMP_CRIT, index - 1), \
938 SENSOR_ATTR_2(temp##index##_max_hyst, S_IRUGO | S_IWUSR, \
939 show_temp, store_temp, TEMP_CRIT_HYST, index - 1), \
940 SENSOR_ATTR_2(temp##index##_warn, S_IRUGO | S_IWUSR, show_temp, \
941 store_temp, TEMP_WARN, index - 1), \
942 SENSOR_ATTR_2(temp##index##_warn_hyst, S_IRUGO | S_IWUSR, \
943 show_temp, store_temp, TEMP_WARN_HYST, index - 1), \
944 SENSOR_ATTR_2(temp##index##_alarm, S_IRUGO, \
945 show_alarm_beep, NULL, ALARM_STATUS, index + 11), \
946 SENSOR_ATTR_2(temp##index##_beep, S_IWUSR | S_IRUGO, \
947 show_alarm_beep, store_beep, BEEP_ENABLE, index + 11), \
948 SENSOR_ATTR_2(temp##index##_auto_channels_pwm, \
949 S_IRUGO | S_IWUSR, show_sf_ctrl, store_sf_ctrl, \
950 TEMP_FAN_MAP, index - 1), \
951 SENSOR_ATTR_2(temp##index##_pwm_enable, S_IWUSR | S_IRUGO, \
952 show_sf_ctrl, store_sf_ctrl, TEMP_PWM_ENABLE, \
954 SENSOR_ATTR_2(thermal_cruise##index, S_IRUGO | S_IWUSR, \
955 show_sf_ctrl, store_sf_ctrl, TEMP_CRUISE, index - 1), \
956 SENSOR_ATTR_2(tolerance##index, S_IRUGO | S_IWUSR, show_sf_ctrl,\
957 store_sf_ctrl, TEMP_TOLERANCE, index - 1), \
958 SENSOR_ATTR_2(temp##index##_auto_point1_pwm, S_IRUGO | S_IWUSR, \
959 show_sf2_pwm, store_sf2_pwm, 0, index - 1), \
960 SENSOR_ATTR_2(temp##index##_auto_point2_pwm, S_IRUGO | S_IWUSR, \
961 show_sf2_pwm, store_sf2_pwm, 1, index - 1), \
962 SENSOR_ATTR_2(temp##index##_auto_point3_pwm, S_IRUGO | S_IWUSR, \
963 show_sf2_pwm, store_sf2_pwm, 2, index - 1), \
964 SENSOR_ATTR_2(temp##index##_auto_point4_pwm, S_IRUGO | S_IWUSR, \
965 show_sf2_pwm, store_sf2_pwm, 3, index - 1), \
966 SENSOR_ATTR_2(temp##index##_auto_point5_pwm, S_IRUGO | S_IWUSR, \
967 show_sf2_pwm, store_sf2_pwm, 4, index - 1), \
968 SENSOR_ATTR_2(temp##index##_auto_point6_pwm, S_IRUGO | S_IWUSR, \
969 show_sf2_pwm, store_sf2_pwm, 5, index - 1), \
970 SENSOR_ATTR_2(temp##index##_auto_point7_pwm, S_IRUGO | S_IWUSR, \
971 show_sf2_pwm, store_sf2_pwm, 6, index - 1), \
972 SENSOR_ATTR_2(temp##index##_auto_point1_temp, S_IRUGO | S_IWUSR,\
973 show_sf2_temp, store_sf2_temp, 0, index - 1), \
974 SENSOR_ATTR_2(temp##index##_auto_point2_temp, S_IRUGO | S_IWUSR,\
975 show_sf2_temp, store_sf2_temp, 1, index - 1), \
976 SENSOR_ATTR_2(temp##index##_auto_point3_temp, S_IRUGO | S_IWUSR,\
977 show_sf2_temp, store_sf2_temp, 2, index - 1), \
978 SENSOR_ATTR_2(temp##index##_auto_point4_temp, S_IRUGO | S_IWUSR,\
979 show_sf2_temp, store_sf2_temp, 3, index - 1), \
980 SENSOR_ATTR_2(temp##index##_auto_point5_temp, S_IRUGO | S_IWUSR,\
981 show_sf2_temp, store_sf2_temp, 4, index - 1), \
982 SENSOR_ATTR_2(temp##index##_auto_point6_temp, S_IRUGO | S_IWUSR,\
983 show_sf2_temp, store_sf2_temp, 5, index - 1), \
984 SENSOR_ATTR_2(temp##index##_auto_point7_temp, S_IRUGO | S_IWUSR,\
985 show_sf2_temp, store_sf2_temp, 6, index - 1)
987 static struct sensor_device_attribute_2 w83793_sensor_attr_2[] = {
1008 static struct sensor_device_attribute_2 w83793_temp[] = {
1009 SENSOR_ATTR_TEMP(1),
1010 SENSOR_ATTR_TEMP(2),
1011 SENSOR_ATTR_TEMP(3),
1012 SENSOR_ATTR_TEMP(4),
1013 SENSOR_ATTR_TEMP(5),
1014 SENSOR_ATTR_TEMP(6),
1018 static struct sensor_device_attribute_2 w83793_left_fan[] = {
1023 SENSOR_ATTR_FAN(10),
1024 SENSOR_ATTR_FAN(11),
1025 SENSOR_ATTR_FAN(12),
1029 static struct sensor_device_attribute_2 w83793_left_pwm[] = {
1037 static struct sensor_device_attribute_2 w83793_vid[] = {
1038 SENSOR_ATTR_2(cpu0_vid, S_IRUGO, show_vid, NULL, NOT_USED, 0),
1039 SENSOR_ATTR_2(cpu1_vid, S_IRUGO, show_vid, NULL, NOT_USED, 1),
1041 static DEVICE_ATTR(vrm, S_IWUSR | S_IRUGO, show_vrm, store_vrm);
1043 static struct sensor_device_attribute_2 sda_single_files[] = {
1044 SENSOR_ATTR_2(chassis, S_IWUSR | S_IRUGO, show_alarm_beep,
1045 store_chassis_clear, ALARM_STATUS, 30),
1046 SENSOR_ATTR_2(beep_enable, S_IWUSR | S_IRUGO, show_beep_enable,
1047 store_beep_enable, NOT_USED, NOT_USED),
1048 SENSOR_ATTR_2(pwm_default, S_IWUSR | S_IRUGO, show_sf_setup,
1049 store_sf_setup, SETUP_PWM_DEFAULT, NOT_USED),
1050 SENSOR_ATTR_2(pwm_uptime, S_IWUSR | S_IRUGO, show_sf_setup,
1051 store_sf_setup, SETUP_PWM_UPTIME, NOT_USED),
1052 SENSOR_ATTR_2(pwm_downtime, S_IWUSR | S_IRUGO, show_sf_setup,
1053 store_sf_setup, SETUP_PWM_DOWNTIME, NOT_USED),
1054 SENSOR_ATTR_2(temp_critical, S_IWUSR | S_IRUGO, show_sf_setup,
1055 store_sf_setup, SETUP_TEMP_CRITICAL, NOT_USED),
1058 static void w83793_init_client(struct i2c_client *client)
1061 w83793_write_value(client, W83793_REG_CONFIG, 0x80);
1064 /* Start monitoring */
1065 w83793_write_value(client, W83793_REG_CONFIG,
1066 w83793_read_value(client, W83793_REG_CONFIG) | 0x01);
1070 static int w83793_remove(struct i2c_client *client)
1072 struct w83793_data *data = i2c_get_clientdata(client);
1073 struct device *dev = &client->dev;
1076 hwmon_device_unregister(data->hwmon_dev);
1078 for (i = 0; i < ARRAY_SIZE(w83793_sensor_attr_2); i++)
1079 device_remove_file(dev,
1080 &w83793_sensor_attr_2[i].dev_attr);
1082 for (i = 0; i < ARRAY_SIZE(sda_single_files); i++)
1083 device_remove_file(dev, &sda_single_files[i].dev_attr);
1085 for (i = 0; i < ARRAY_SIZE(w83793_vid); i++)
1086 device_remove_file(dev, &w83793_vid[i].dev_attr);
1087 device_remove_file(dev, &dev_attr_vrm);
1089 for (i = 0; i < ARRAY_SIZE(w83793_left_fan); i++)
1090 device_remove_file(dev, &w83793_left_fan[i].dev_attr);
1092 for (i = 0; i < ARRAY_SIZE(w83793_left_pwm); i++)
1093 device_remove_file(dev, &w83793_left_pwm[i].dev_attr);
1095 for (i = 0; i < ARRAY_SIZE(w83793_temp); i++)
1096 device_remove_file(dev, &w83793_temp[i].dev_attr);
1098 if (data->lm75[0] != NULL)
1099 i2c_unregister_device(data->lm75[0]);
1100 if (data->lm75[1] != NULL)
1101 i2c_unregister_device(data->lm75[1]);
1109 w83793_detect_subclients(struct i2c_client *client)
1112 int address = client->addr;
1114 struct i2c_adapter *adapter = client->adapter;
1115 struct w83793_data *data = i2c_get_clientdata(client);
1117 id = i2c_adapter_id(adapter);
1118 if (force_subclients[0] == id && force_subclients[1] == address) {
1119 for (i = 2; i <= 3; i++) {
1120 if (force_subclients[i] < 0x48
1121 || force_subclients[i] > 0x4f) {
1122 dev_err(&client->dev,
1123 "invalid subclient "
1124 "address %d; must be 0x48-0x4f\n",
1125 force_subclients[i]);
1130 w83793_write_value(client, W83793_REG_I2C_SUBADDR,
1131 (force_subclients[2] & 0x07) |
1132 ((force_subclients[3] & 0x07) << 4));
1135 tmp = w83793_read_value(client, W83793_REG_I2C_SUBADDR);
1136 if (!(tmp & 0x08)) {
1137 data->lm75[0] = i2c_new_dummy(adapter, 0x48 + (tmp & 0x7));
1139 if (!(tmp & 0x80)) {
1140 if ((data->lm75[0] != NULL)
1141 && ((tmp & 0x7) == ((tmp >> 4) & 0x7))) {
1142 dev_err(&client->dev,
1143 "duplicate addresses 0x%x, "
1144 "use force_subclients\n", data->lm75[0]->addr);
1148 data->lm75[1] = i2c_new_dummy(adapter,
1149 0x48 + ((tmp >> 4) & 0x7));
1154 /* Undo inits in case of errors */
1157 if (data->lm75[0] != NULL)
1158 i2c_unregister_device(data->lm75[0]);
1163 /* Return 0 if detection is successful, -ENODEV otherwise */
1164 static int w83793_detect(struct i2c_client *client, int kind,
1165 struct i2c_board_info *info)
1168 struct i2c_adapter *adapter = client->adapter;
1169 unsigned short address = client->addr;
1171 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
1175 bank = i2c_smbus_read_byte_data(client, W83793_REG_BANKSEL);
1178 tmp = bank & 0x80 ? 0x5c : 0xa3;
1179 /* Check Winbond vendor ID */
1180 if (tmp != i2c_smbus_read_byte_data(client,
1181 W83793_REG_VENDORID)) {
1182 pr_debug("w83793: Detection failed at check "
1187 /* If Winbond chip, address of chip and W83793_REG_I2C_ADDR
1189 if ((bank & 0x07) == 0
1190 && i2c_smbus_read_byte_data(client, W83793_REG_I2C_ADDR) !=
1192 pr_debug("w83793: Detection failed at check "
1199 /* We have either had a force parameter, or we have already detected the
1200 Winbond. Determine the chip type now */
1203 if (0x7b == i2c_smbus_read_byte_data(client,
1204 W83793_REG_CHIPID)) {
1208 dev_warn(&adapter->dev, "w83793: Ignoring "
1209 "'force' parameter for unknown chip "
1210 "at address 0x%02x\n", address);
1215 strlcpy(info->type, "w83793", I2C_NAME_SIZE);
1220 static int w83793_probe(struct i2c_client *client,
1221 const struct i2c_device_id *id)
1223 struct device *dev = &client->dev;
1224 struct w83793_data *data;
1225 int i, tmp, val, err;
1226 int files_fan = ARRAY_SIZE(w83793_left_fan) / 7;
1227 int files_pwm = ARRAY_SIZE(w83793_left_pwm) / 5;
1228 int files_temp = ARRAY_SIZE(w83793_temp) / 6;
1230 data = kzalloc(sizeof(struct w83793_data), GFP_KERNEL);
1236 i2c_set_clientdata(client, data);
1237 data->bank = i2c_smbus_read_byte_data(client, W83793_REG_BANKSEL);
1238 mutex_init(&data->update_lock);
1240 err = w83793_detect_subclients(client);
1244 /* Initialize the chip */
1245 w83793_init_client(client);
1248 Only fan 1-5 has their own input pins,
1249 Pwm 1-3 has their own pins
1251 data->has_fan = 0x1f;
1252 data->has_pwm = 0x07;
1253 tmp = w83793_read_value(client, W83793_REG_MFC);
1254 val = w83793_read_value(client, W83793_REG_FANIN_CTRL);
1256 /* check the function of pins 49-56 */
1258 data->has_vid |= 0x2; /* has VIDB */
1260 data->has_pwm |= 0x18; /* pwm 4,5 */
1261 if (val & 0x01) { /* fan 6 */
1262 data->has_fan |= 0x20;
1263 data->has_pwm |= 0x20;
1265 if (val & 0x02) { /* fan 7 */
1266 data->has_fan |= 0x40;
1267 data->has_pwm |= 0x40;
1269 if (!(tmp & 0x40) && (val & 0x04)) { /* fan 8 */
1270 data->has_fan |= 0x80;
1271 data->has_pwm |= 0x80;
1275 /* check the function of pins 37-40 */
1277 data->has_vid |= 0x1; /* has VIDA */
1278 if (0x08 == (tmp & 0x0c)) {
1279 if (val & 0x08) /* fan 9 */
1280 data->has_fan |= 0x100;
1281 if (val & 0x10) /* fan 10 */
1282 data->has_fan |= 0x200;
1284 if (0x20 == (tmp & 0x30)) {
1285 if (val & 0x20) /* fan 11 */
1286 data->has_fan |= 0x400;
1287 if (val & 0x40) /* fan 12 */
1288 data->has_fan |= 0x800;
1291 if ((tmp & 0x01) && (val & 0x04)) { /* fan 8, second location */
1292 data->has_fan |= 0x80;
1293 data->has_pwm |= 0x80;
1296 tmp = w83793_read_value(client, W83793_REG_FANIN_SEL);
1297 if ((tmp & 0x01) && (val & 0x08)) { /* fan 9, second location */
1298 data->has_fan |= 0x100;
1300 if ((tmp & 0x02) && (val & 0x10)) { /* fan 10, second location */
1301 data->has_fan |= 0x200;
1303 if ((tmp & 0x04) && (val & 0x20)) { /* fan 11, second location */
1304 data->has_fan |= 0x400;
1306 if ((tmp & 0x08) && (val & 0x40)) { /* fan 12, second location */
1307 data->has_fan |= 0x800;
1310 /* check the temp1-6 mode, ignore former AMDSI selected inputs */
1311 tmp = w83793_read_value(client,W83793_REG_TEMP_MODE[0]);
1313 data->has_temp |= 0x01;
1315 data->has_temp |= 0x02;
1317 data->has_temp |= 0x04;
1319 data->has_temp |= 0x08;
1321 tmp = w83793_read_value(client,W83793_REG_TEMP_MODE[1]);
1323 data->has_temp |= 0x10;
1325 data->has_temp |= 0x20;
1327 /* Register sysfs hooks */
1328 for (i = 0; i < ARRAY_SIZE(w83793_sensor_attr_2); i++) {
1329 err = device_create_file(dev,
1330 &w83793_sensor_attr_2[i].dev_attr);
1335 for (i = 0; i < ARRAY_SIZE(w83793_vid); i++) {
1336 if (!(data->has_vid & (1 << i)))
1338 err = device_create_file(dev, &w83793_vid[i].dev_attr);
1342 if (data->has_vid) {
1343 data->vrm = vid_which_vrm();
1344 err = device_create_file(dev, &dev_attr_vrm);
1349 for (i = 0; i < ARRAY_SIZE(sda_single_files); i++) {
1350 err = device_create_file(dev, &sda_single_files[i].dev_attr);
1356 for (i = 0; i < 6; i++) {
1358 if (!(data->has_temp & (1 << i)))
1360 for (j = 0; j < files_temp; j++) {
1361 err = device_create_file(dev,
1362 &w83793_temp[(i) * files_temp
1369 for (i = 5; i < 12; i++) {
1371 if (!(data->has_fan & (1 << i)))
1373 for (j = 0; j < files_fan; j++) {
1374 err = device_create_file(dev,
1375 &w83793_left_fan[(i - 5) * files_fan
1382 for (i = 3; i < 8; i++) {
1384 if (!(data->has_pwm & (1 << i)))
1386 for (j = 0; j < files_pwm; j++) {
1387 err = device_create_file(dev,
1388 &w83793_left_pwm[(i - 3) * files_pwm
1395 data->hwmon_dev = hwmon_device_register(dev);
1396 if (IS_ERR(data->hwmon_dev)) {
1397 err = PTR_ERR(data->hwmon_dev);
1403 /* Unregister sysfs hooks */
1406 for (i = 0; i < ARRAY_SIZE(w83793_sensor_attr_2); i++)
1407 device_remove_file(dev, &w83793_sensor_attr_2[i].dev_attr);
1409 for (i = 0; i < ARRAY_SIZE(sda_single_files); i++)
1410 device_remove_file(dev, &sda_single_files[i].dev_attr);
1412 for (i = 0; i < ARRAY_SIZE(w83793_vid); i++)
1413 device_remove_file(dev, &w83793_vid[i].dev_attr);
1415 for (i = 0; i < ARRAY_SIZE(w83793_left_fan); i++)
1416 device_remove_file(dev, &w83793_left_fan[i].dev_attr);
1418 for (i = 0; i < ARRAY_SIZE(w83793_left_pwm); i++)
1419 device_remove_file(dev, &w83793_left_pwm[i].dev_attr);
1421 for (i = 0; i < ARRAY_SIZE(w83793_temp); i++)
1422 device_remove_file(dev, &w83793_temp[i].dev_attr);
1424 if (data->lm75[0] != NULL)
1425 i2c_unregister_device(data->lm75[0]);
1426 if (data->lm75[1] != NULL)
1427 i2c_unregister_device(data->lm75[1]);
1434 static void w83793_update_nonvolatile(struct device *dev)
1436 struct i2c_client *client = to_i2c_client(dev);
1437 struct w83793_data *data = i2c_get_clientdata(client);
1440 They are somewhat "stable" registers, and to update them everytime
1441 takes so much time, it's just not worthy. Update them in a long
1442 interval to avoid exception.
1444 if (!(time_after(jiffies, data->last_nonvolatile + HZ * 300)
1447 /* update voltage limits */
1448 for (i = 1; i < 3; i++) {
1449 for (j = 0; j < ARRAY_SIZE(data->in); j++) {
1451 w83793_read_value(client, W83793_REG_IN[j][i]);
1453 data->in_low_bits[i] =
1454 w83793_read_value(client, W83793_REG_IN_LOW_BITS[i]);
1457 for (i = 0; i < ARRAY_SIZE(data->fan_min); i++) {
1458 /* Update the Fan measured value and limits */
1459 if (!(data->has_fan & (1 << i))) {
1463 w83793_read_value(client, W83793_REG_FAN_MIN(i)) << 8;
1465 w83793_read_value(client, W83793_REG_FAN_MIN(i) + 1);
1468 for (i = 0; i < ARRAY_SIZE(data->temp_fan_map); i++) {
1469 if (!(data->has_temp & (1 << i)))
1471 data->temp_fan_map[i] =
1472 w83793_read_value(client, W83793_REG_TEMP_FAN_MAP(i));
1473 for (j = 1; j < 5; j++) {
1475 w83793_read_value(client, W83793_REG_TEMP[i][j]);
1477 data->temp_cruise[i] =
1478 w83793_read_value(client, W83793_REG_TEMP_CRUISE(i));
1479 for (j = 0; j < 7; j++) {
1480 data->sf2_pwm[i][j] =
1481 w83793_read_value(client, W83793_REG_SF2_PWM(i, j));
1482 data->sf2_temp[i][j] =
1483 w83793_read_value(client,
1484 W83793_REG_SF2_TEMP(i, j));
1488 for (i = 0; i < ARRAY_SIZE(data->temp_mode); i++)
1489 data->temp_mode[i] =
1490 w83793_read_value(client, W83793_REG_TEMP_MODE[i]);
1492 for (i = 0; i < ARRAY_SIZE(data->tolerance); i++) {
1493 data->tolerance[i] =
1494 w83793_read_value(client, W83793_REG_TEMP_TOL(i));
1497 for (i = 0; i < ARRAY_SIZE(data->pwm); i++) {
1498 if (!(data->has_pwm & (1 << i)))
1500 data->pwm[i][PWM_NONSTOP] =
1501 w83793_read_value(client, W83793_REG_PWM(i, PWM_NONSTOP));
1502 data->pwm[i][PWM_START] =
1503 w83793_read_value(client, W83793_REG_PWM(i, PWM_START));
1504 data->pwm_stop_time[i] =
1505 w83793_read_value(client, W83793_REG_PWM_STOP_TIME(i));
1508 data->pwm_default = w83793_read_value(client, W83793_REG_PWM_DEFAULT);
1509 data->pwm_enable = w83793_read_value(client, W83793_REG_PWM_ENABLE);
1510 data->pwm_uptime = w83793_read_value(client, W83793_REG_PWM_UPTIME);
1511 data->pwm_downtime = w83793_read_value(client, W83793_REG_PWM_DOWNTIME);
1512 data->temp_critical =
1513 w83793_read_value(client, W83793_REG_TEMP_CRITICAL);
1514 data->beep_enable = w83793_read_value(client, W83793_REG_OVT_BEEP);
1516 for (i = 0; i < ARRAY_SIZE(data->beeps); i++) {
1517 data->beeps[i] = w83793_read_value(client, W83793_REG_BEEP(i));
1520 data->last_nonvolatile = jiffies;
1523 static struct w83793_data *w83793_update_device(struct device *dev)
1525 struct i2c_client *client = to_i2c_client(dev);
1526 struct w83793_data *data = i2c_get_clientdata(client);
1529 mutex_lock(&data->update_lock);
1531 if (!(time_after(jiffies, data->last_updated + HZ * 2)
1535 /* Update the voltages measured value and limits */
1536 for (i = 0; i < ARRAY_SIZE(data->in); i++)
1537 data->in[i][IN_READ] =
1538 w83793_read_value(client, W83793_REG_IN[i][IN_READ]);
1540 data->in_low_bits[IN_READ] =
1541 w83793_read_value(client, W83793_REG_IN_LOW_BITS[IN_READ]);
1543 for (i = 0; i < ARRAY_SIZE(data->fan); i++) {
1544 if (!(data->has_fan & (1 << i))) {
1548 w83793_read_value(client, W83793_REG_FAN(i)) << 8;
1550 w83793_read_value(client, W83793_REG_FAN(i) + 1);
1553 for (i = 0; i < ARRAY_SIZE(data->temp); i++) {
1554 if (!(data->has_temp & (1 << i)))
1556 data->temp[i][TEMP_READ] =
1557 w83793_read_value(client, W83793_REG_TEMP[i][TEMP_READ]);
1560 data->temp_low_bits =
1561 w83793_read_value(client, W83793_REG_TEMP_LOW_BITS);
1563 for (i = 0; i < ARRAY_SIZE(data->pwm); i++) {
1564 if (data->has_pwm & (1 << i))
1565 data->pwm[i][PWM_DUTY] =
1566 w83793_read_value(client,
1567 W83793_REG_PWM(i, PWM_DUTY));
1570 for (i = 0; i < ARRAY_SIZE(data->alarms); i++)
1572 w83793_read_value(client, W83793_REG_ALARM(i));
1573 if (data->has_vid & 0x01)
1574 data->vid[0] = w83793_read_value(client, W83793_REG_VID_INA);
1575 if (data->has_vid & 0x02)
1576 data->vid[1] = w83793_read_value(client, W83793_REG_VID_INB);
1577 w83793_update_nonvolatile(dev);
1578 data->last_updated = jiffies;
1582 mutex_unlock(&data->update_lock);
1586 /* Ignore the possibility that somebody change bank outside the driver
1587 Must be called with data->update_lock held, except during initialization */
1588 static u8 w83793_read_value(struct i2c_client *client, u16 reg)
1590 struct w83793_data *data = i2c_get_clientdata(client);
1592 u8 new_bank = reg >> 8;
1594 new_bank |= data->bank & 0xfc;
1595 if (data->bank != new_bank) {
1596 if (i2c_smbus_write_byte_data
1597 (client, W83793_REG_BANKSEL, new_bank) >= 0)
1598 data->bank = new_bank;
1600 dev_err(&client->dev,
1601 "set bank to %d failed, fall back "
1602 "to bank %d, read reg 0x%x error\n",
1603 new_bank, data->bank, reg);
1604 res = 0x0; /* read 0x0 from the chip */
1608 res = i2c_smbus_read_byte_data(client, reg & 0xff);
1613 /* Must be called with data->update_lock held, except during initialization */
1614 static int w83793_write_value(struct i2c_client *client, u16 reg, u8 value)
1616 struct w83793_data *data = i2c_get_clientdata(client);
1618 u8 new_bank = reg >> 8;
1620 new_bank |= data->bank & 0xfc;
1621 if (data->bank != new_bank) {
1622 if ((res = i2c_smbus_write_byte_data
1623 (client, W83793_REG_BANKSEL, new_bank)) >= 0)
1624 data->bank = new_bank;
1626 dev_err(&client->dev,
1627 "set bank to %d failed, fall back "
1628 "to bank %d, write reg 0x%x error\n",
1629 new_bank, data->bank, reg);
1634 res = i2c_smbus_write_byte_data(client, reg & 0xff, value);
1639 static int __init sensors_w83793_init(void)
1641 return i2c_add_driver(&w83793_driver);
1644 static void __exit sensors_w83793_exit(void)
1646 i2c_del_driver(&w83793_driver);
1649 MODULE_AUTHOR("Yuan Mu");
1650 MODULE_DESCRIPTION("w83793 driver");
1651 MODULE_LICENSE("GPL");
1653 module_init(sensors_w83793_init);
1654 module_exit(sensors_w83793_exit);