2 w83627ehf - Driver for the hardware monitoring functionality of
3 the Winbond W83627EHF Super-I/O chip
4 Copyright (C) 2005 Jean Delvare <khali@linux-fr.org>
5 Copyright (C) 2006 Yuan Mu (Winbond),
6 Rudolf Marek <r.marek@assembler.cz>
7 David Hubbard <david.c.hubbard@gmail.com>
9 Shamelessly ripped from the w83627hf driver
10 Copyright (C) 2003 Mark Studebaker
12 Thanks to Leon Moonen, Steve Cliffe and Grant Coady for their help
13 in testing and debugging this driver.
15 This driver also supports the W83627EHG, which is the lead-free
16 version of the W83627EHF.
18 This program is free software; you can redistribute it and/or modify
19 it under the terms of the GNU General Public License as published by
20 the Free Software Foundation; either version 2 of the License, or
21 (at your option) any later version.
23 This program is distributed in the hope that it will be useful,
24 but WITHOUT ANY WARRANTY; without even the implied warranty of
25 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
26 GNU General Public License for more details.
28 You should have received a copy of the GNU General Public License
29 along with this program; if not, write to the Free Software
30 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
33 Supports the following chips:
35 Chip #vin #fan #pwm #temp chip IDs man ID
36 w83627ehf 10 5 4 3 0x8850 0x88 0x5ca3
38 w83627dhg 9 5 4 3 0xa020 0xc1 0x5ca3
41 #include <linux/module.h>
42 #include <linux/init.h>
43 #include <linux/slab.h>
44 #include <linux/i2c.h>
45 #include <linux/i2c-isa.h>
46 #include <linux/hwmon.h>
47 #include <linux/hwmon-sysfs.h>
48 #include <linux/err.h>
49 #include <linux/mutex.h>
53 /* The actual ISA address is read from Super-I/O configuration space */
54 static unsigned short address;
57 * Super-I/O constants and functions
61 * The three following globals are initialized in w83627ehf_find(), before
62 * the i2c-isa device is created. Otherwise, they could be stored in
63 * w83627ehf_data. This is ugly, but necessary, and when the driver is next
64 * updated to become a platform driver, the globals will disappear.
66 static int REG; /* The register to read/write */
67 static int VAL; /* The value to read/write */
68 /* The w83627ehf/ehg have 10 voltage inputs, but the w83627dhg has 9. This
69 * value is also used in w83627ehf_detect() to export a device name in sysfs
70 * (e.g. w83627ehf or w83627dhg) */
71 static int w83627ehf_num_in;
73 #define W83627EHF_LD_HWM 0x0b
75 #define SIO_REG_LDSEL 0x07 /* Logical device select */
76 #define SIO_REG_DEVID 0x20 /* Device ID (2 bytes) */
77 #define SIO_REG_ENABLE 0x30 /* Logical device enable */
78 #define SIO_REG_ADDR 0x60 /* Logical device address (2 bytes) */
80 #define SIO_W83627EHF_ID 0x8850
81 #define SIO_W83627EHG_ID 0x8860
82 #define SIO_W83627DHG_ID 0xa020
83 #define SIO_ID_MASK 0xFFF0
86 superio_outb(int reg, int val)
100 superio_select(int ld)
102 outb(SIO_REG_LDSEL, REG);
124 #define REGION_ALIGNMENT ~7
125 #define REGION_OFFSET 5
126 #define REGION_LENGTH 2
127 #define ADDR_REG_OFFSET 5
128 #define DATA_REG_OFFSET 6
130 #define W83627EHF_REG_BANK 0x4E
131 #define W83627EHF_REG_CONFIG 0x40
133 /* Not currently used:
134 * REG_MAN_ID has the value 0x5ca3 for all supported chips.
135 * REG_CHIP_ID == 0x88/0xa1/0xc1 depending on chip model.
136 * REG_MAN_ID is at port 0x4f
137 * REG_CHIP_ID is at port 0x58 */
139 static const u16 W83627EHF_REG_FAN[] = { 0x28, 0x29, 0x2a, 0x3f, 0x553 };
140 static const u16 W83627EHF_REG_FAN_MIN[] = { 0x3b, 0x3c, 0x3d, 0x3e, 0x55c };
142 /* The W83627EHF registers for nr=7,8,9 are in bank 5 */
143 #define W83627EHF_REG_IN_MAX(nr) ((nr < 7) ? (0x2b + (nr) * 2) : \
144 (0x554 + (((nr) - 7) * 2)))
145 #define W83627EHF_REG_IN_MIN(nr) ((nr < 7) ? (0x2c + (nr) * 2) : \
146 (0x555 + (((nr) - 7) * 2)))
147 #define W83627EHF_REG_IN(nr) ((nr < 7) ? (0x20 + (nr)) : \
150 #define W83627EHF_REG_TEMP1 0x27
151 #define W83627EHF_REG_TEMP1_HYST 0x3a
152 #define W83627EHF_REG_TEMP1_OVER 0x39
153 static const u16 W83627EHF_REG_TEMP[] = { 0x150, 0x250 };
154 static const u16 W83627EHF_REG_TEMP_HYST[] = { 0x153, 0x253 };
155 static const u16 W83627EHF_REG_TEMP_OVER[] = { 0x155, 0x255 };
156 static const u16 W83627EHF_REG_TEMP_CONFIG[] = { 0x152, 0x252 };
158 /* Fan clock dividers are spread over the following five registers */
159 #define W83627EHF_REG_FANDIV1 0x47
160 #define W83627EHF_REG_FANDIV2 0x4B
161 #define W83627EHF_REG_VBAT 0x5D
162 #define W83627EHF_REG_DIODE 0x59
163 #define W83627EHF_REG_SMI_OVT 0x4C
165 #define W83627EHF_REG_ALARM1 0x459
166 #define W83627EHF_REG_ALARM2 0x45A
167 #define W83627EHF_REG_ALARM3 0x45B
169 /* SmartFan registers */
170 /* DC or PWM output fan configuration */
171 static const u8 W83627EHF_REG_PWM_ENABLE[] = {
172 0x04, /* SYS FAN0 output mode and PWM mode */
173 0x04, /* CPU FAN0 output mode and PWM mode */
174 0x12, /* AUX FAN mode */
175 0x62, /* CPU fan1 mode */
178 static const u8 W83627EHF_PWM_MODE_SHIFT[] = { 0, 1, 0, 6 };
179 static const u8 W83627EHF_PWM_ENABLE_SHIFT[] = { 2, 4, 1, 4 };
181 /* FAN Duty Cycle, be used to control */
182 static const u8 W83627EHF_REG_PWM[] = { 0x01, 0x03, 0x11, 0x61 };
183 static const u8 W83627EHF_REG_TARGET[] = { 0x05, 0x06, 0x13, 0x63 };
184 static const u8 W83627EHF_REG_TOLERANCE[] = { 0x07, 0x07, 0x14, 0x62 };
187 /* Advanced Fan control, some values are common for all fans */
188 static const u8 W83627EHF_REG_FAN_MIN_OUTPUT[] = { 0x08, 0x09, 0x15, 0x64 };
189 static const u8 W83627EHF_REG_FAN_STOP_TIME[] = { 0x0C, 0x0D, 0x17, 0x66 };
195 /* 1 is PWM mode, output in ms */
196 static inline unsigned int step_time_from_reg(u8 reg, u8 mode)
198 return mode ? 100 * reg : 400 * reg;
201 static inline u8 step_time_to_reg(unsigned int msec, u8 mode)
203 return SENSORS_LIMIT((mode ? (msec + 50) / 100 :
204 (msec + 200) / 400), 1, 255);
207 static inline unsigned int
208 fan_from_reg(u8 reg, unsigned int div)
210 if (reg == 0 || reg == 255)
212 return 1350000U / (reg * div);
215 static inline unsigned int
222 temp1_from_reg(s8 reg)
228 temp1_to_reg(int temp, int min, int max)
235 return (temp - 500) / 1000;
236 return (temp + 500) / 1000;
239 /* Some of analog inputs have internal scaling (2x), 8mV is ADC LSB */
241 static u8 scale_in[10] = { 8, 8, 16, 16, 8, 8, 8, 16, 16, 8 };
243 static inline long in_from_reg(u8 reg, u8 nr)
245 return reg * scale_in[nr];
248 static inline u8 in_to_reg(u32 val, u8 nr)
250 return SENSORS_LIMIT(((val + (scale_in[nr] / 2)) / scale_in[nr]), 0, 255);
254 * Data structures and manipulation thereof
257 struct w83627ehf_data {
258 struct i2c_client client;
259 struct class_device *class_dev;
262 struct mutex update_lock;
263 char valid; /* !=0 if following fields are valid */
264 unsigned long last_updated; /* In jiffies */
266 /* Register values */
267 u8 in[10]; /* Register value */
268 u8 in_max[10]; /* Register value */
269 u8 in_min[10]; /* Register value */
273 u8 has_fan; /* some fan inputs can be disabled */
279 s16 temp_max_hyst[2];
282 u8 pwm_mode[4]; /* 0->DC variable voltage, 1->PWM variable duty cycle */
283 u8 pwm_enable[4]; /* 1->manual
284 2->thermal cruise (also called SmartFan I) */
289 u8 fan_min_output[4]; /* minimum fan speed */
293 static inline int is_word_sized(u16 reg)
295 return (((reg & 0xff00) == 0x100
296 || (reg & 0xff00) == 0x200)
297 && ((reg & 0x00ff) == 0x50
298 || (reg & 0x00ff) == 0x53
299 || (reg & 0x00ff) == 0x55));
302 /* We assume that the default bank is 0, thus the following two functions do
303 nothing for registers which live in bank 0. For others, they respectively
304 set the bank register to the correct value (before the register is
305 accessed), and back to 0 (afterwards). */
306 static inline void w83627ehf_set_bank(struct i2c_client *client, u16 reg)
309 outb_p(W83627EHF_REG_BANK, client->addr + ADDR_REG_OFFSET);
310 outb_p(reg >> 8, client->addr + DATA_REG_OFFSET);
314 static inline void w83627ehf_reset_bank(struct i2c_client *client, u16 reg)
317 outb_p(W83627EHF_REG_BANK, client->addr + ADDR_REG_OFFSET);
318 outb_p(0, client->addr + DATA_REG_OFFSET);
322 static u16 w83627ehf_read_value(struct i2c_client *client, u16 reg)
324 struct w83627ehf_data *data = i2c_get_clientdata(client);
325 int res, word_sized = is_word_sized(reg);
327 mutex_lock(&data->lock);
329 w83627ehf_set_bank(client, reg);
330 outb_p(reg & 0xff, client->addr + ADDR_REG_OFFSET);
331 res = inb_p(client->addr + DATA_REG_OFFSET);
333 outb_p((reg & 0xff) + 1,
334 client->addr + ADDR_REG_OFFSET);
335 res = (res << 8) + inb_p(client->addr + DATA_REG_OFFSET);
337 w83627ehf_reset_bank(client, reg);
339 mutex_unlock(&data->lock);
344 static int w83627ehf_write_value(struct i2c_client *client, u16 reg, u16 value)
346 struct w83627ehf_data *data = i2c_get_clientdata(client);
347 int word_sized = is_word_sized(reg);
349 mutex_lock(&data->lock);
351 w83627ehf_set_bank(client, reg);
352 outb_p(reg & 0xff, client->addr + ADDR_REG_OFFSET);
354 outb_p(value >> 8, client->addr + DATA_REG_OFFSET);
355 outb_p((reg & 0xff) + 1,
356 client->addr + ADDR_REG_OFFSET);
358 outb_p(value & 0xff, client->addr + DATA_REG_OFFSET);
359 w83627ehf_reset_bank(client, reg);
361 mutex_unlock(&data->lock);
365 /* This function assumes that the caller holds data->update_lock */
366 static void w83627ehf_write_fan_div(struct i2c_client *client, int nr)
368 struct w83627ehf_data *data = i2c_get_clientdata(client);
373 reg = (w83627ehf_read_value(client, W83627EHF_REG_FANDIV1) & 0xcf)
374 | ((data->fan_div[0] & 0x03) << 4);
375 /* fan5 input control bit is write only, compute the value */
376 reg |= (data->has_fan & (1 << 4)) ? 1 : 0;
377 w83627ehf_write_value(client, W83627EHF_REG_FANDIV1, reg);
378 reg = (w83627ehf_read_value(client, W83627EHF_REG_VBAT) & 0xdf)
379 | ((data->fan_div[0] & 0x04) << 3);
380 w83627ehf_write_value(client, W83627EHF_REG_VBAT, reg);
383 reg = (w83627ehf_read_value(client, W83627EHF_REG_FANDIV1) & 0x3f)
384 | ((data->fan_div[1] & 0x03) << 6);
385 /* fan5 input control bit is write only, compute the value */
386 reg |= (data->has_fan & (1 << 4)) ? 1 : 0;
387 w83627ehf_write_value(client, W83627EHF_REG_FANDIV1, reg);
388 reg = (w83627ehf_read_value(client, W83627EHF_REG_VBAT) & 0xbf)
389 | ((data->fan_div[1] & 0x04) << 4);
390 w83627ehf_write_value(client, W83627EHF_REG_VBAT, reg);
393 reg = (w83627ehf_read_value(client, W83627EHF_REG_FANDIV2) & 0x3f)
394 | ((data->fan_div[2] & 0x03) << 6);
395 w83627ehf_write_value(client, W83627EHF_REG_FANDIV2, reg);
396 reg = (w83627ehf_read_value(client, W83627EHF_REG_VBAT) & 0x7f)
397 | ((data->fan_div[2] & 0x04) << 5);
398 w83627ehf_write_value(client, W83627EHF_REG_VBAT, reg);
401 reg = (w83627ehf_read_value(client, W83627EHF_REG_DIODE) & 0xfc)
402 | (data->fan_div[3] & 0x03);
403 w83627ehf_write_value(client, W83627EHF_REG_DIODE, reg);
404 reg = (w83627ehf_read_value(client, W83627EHF_REG_SMI_OVT) & 0x7f)
405 | ((data->fan_div[3] & 0x04) << 5);
406 w83627ehf_write_value(client, W83627EHF_REG_SMI_OVT, reg);
409 reg = (w83627ehf_read_value(client, W83627EHF_REG_DIODE) & 0x73)
410 | ((data->fan_div[4] & 0x03) << 2)
411 | ((data->fan_div[4] & 0x04) << 5);
412 w83627ehf_write_value(client, W83627EHF_REG_DIODE, reg);
417 static struct w83627ehf_data *w83627ehf_update_device(struct device *dev)
419 struct i2c_client *client = to_i2c_client(dev);
420 struct w83627ehf_data *data = i2c_get_clientdata(client);
421 int pwmcfg = 0, tolerance = 0; /* shut up the compiler */
424 mutex_lock(&data->update_lock);
426 if (time_after(jiffies, data->last_updated + HZ)
428 /* Fan clock dividers */
429 i = w83627ehf_read_value(client, W83627EHF_REG_FANDIV1);
430 data->fan_div[0] = (i >> 4) & 0x03;
431 data->fan_div[1] = (i >> 6) & 0x03;
432 i = w83627ehf_read_value(client, W83627EHF_REG_FANDIV2);
433 data->fan_div[2] = (i >> 6) & 0x03;
434 i = w83627ehf_read_value(client, W83627EHF_REG_VBAT);
435 data->fan_div[0] |= (i >> 3) & 0x04;
436 data->fan_div[1] |= (i >> 4) & 0x04;
437 data->fan_div[2] |= (i >> 5) & 0x04;
438 if (data->has_fan & ((1 << 3) | (1 << 4))) {
439 i = w83627ehf_read_value(client, W83627EHF_REG_DIODE);
440 data->fan_div[3] = i & 0x03;
441 data->fan_div[4] = ((i >> 2) & 0x03)
444 if (data->has_fan & (1 << 3)) {
445 i = w83627ehf_read_value(client, W83627EHF_REG_SMI_OVT);
446 data->fan_div[3] |= (i >> 5) & 0x04;
449 /* Measured voltages and limits */
450 for (i = 0; i < w83627ehf_num_in; i++) {
451 data->in[i] = w83627ehf_read_value(client,
452 W83627EHF_REG_IN(i));
453 data->in_min[i] = w83627ehf_read_value(client,
454 W83627EHF_REG_IN_MIN(i));
455 data->in_max[i] = w83627ehf_read_value(client,
456 W83627EHF_REG_IN_MAX(i));
459 /* Measured fan speeds and limits */
460 for (i = 0; i < 5; i++) {
461 if (!(data->has_fan & (1 << i)))
464 data->fan[i] = w83627ehf_read_value(client,
465 W83627EHF_REG_FAN[i]);
466 data->fan_min[i] = w83627ehf_read_value(client,
467 W83627EHF_REG_FAN_MIN[i]);
469 /* If we failed to measure the fan speed and clock
470 divider can be increased, let's try that for next
472 if (data->fan[i] == 0xff
473 && data->fan_div[i] < 0x07) {
474 dev_dbg(&client->dev, "Increasing fan%d "
475 "clock divider from %u to %u\n",
476 i + 1, div_from_reg(data->fan_div[i]),
477 div_from_reg(data->fan_div[i] + 1));
479 w83627ehf_write_fan_div(client, i);
480 /* Preserve min limit if possible */
481 if (data->fan_min[i] >= 2
482 && data->fan_min[i] != 255)
483 w83627ehf_write_value(client,
484 W83627EHF_REG_FAN_MIN[i],
485 (data->fan_min[i] /= 2));
489 for (i = 0; i < 4; i++) {
490 /* pwmcfg, tolarance mapped for i=0, i=1 to same reg */
492 pwmcfg = w83627ehf_read_value(client,
493 W83627EHF_REG_PWM_ENABLE[i]);
494 tolerance = w83627ehf_read_value(client,
495 W83627EHF_REG_TOLERANCE[i]);
498 ((pwmcfg >> W83627EHF_PWM_MODE_SHIFT[i]) & 1)
500 data->pwm_enable[i] =
501 ((pwmcfg >> W83627EHF_PWM_ENABLE_SHIFT[i])
503 data->pwm[i] = w83627ehf_read_value(client,
504 W83627EHF_REG_PWM[i]);
505 data->fan_min_output[i] = w83627ehf_read_value(client,
506 W83627EHF_REG_FAN_MIN_OUTPUT[i]);
507 data->fan_stop_time[i] = w83627ehf_read_value(client,
508 W83627EHF_REG_FAN_STOP_TIME[i]);
509 data->target_temp[i] =
510 w83627ehf_read_value(client,
511 W83627EHF_REG_TARGET[i]) &
512 (data->pwm_mode[i] == 1 ? 0x7f : 0xff);
513 data->tolerance[i] = (tolerance >> (i == 1 ? 4 : 0))
517 /* Measured temperatures and limits */
518 data->temp1 = w83627ehf_read_value(client,
519 W83627EHF_REG_TEMP1);
520 data->temp1_max = w83627ehf_read_value(client,
521 W83627EHF_REG_TEMP1_OVER);
522 data->temp1_max_hyst = w83627ehf_read_value(client,
523 W83627EHF_REG_TEMP1_HYST);
524 for (i = 0; i < 2; i++) {
525 data->temp[i] = w83627ehf_read_value(client,
526 W83627EHF_REG_TEMP[i]);
527 data->temp_max[i] = w83627ehf_read_value(client,
528 W83627EHF_REG_TEMP_OVER[i]);
529 data->temp_max_hyst[i] = w83627ehf_read_value(client,
530 W83627EHF_REG_TEMP_HYST[i]);
533 data->alarms = w83627ehf_read_value(client,
534 W83627EHF_REG_ALARM1) |
535 (w83627ehf_read_value(client,
536 W83627EHF_REG_ALARM2) << 8) |
537 (w83627ehf_read_value(client,
538 W83627EHF_REG_ALARM3) << 16);
540 data->last_updated = jiffies;
544 mutex_unlock(&data->update_lock);
549 * Sysfs callback functions
551 #define show_in_reg(reg) \
553 show_##reg(struct device *dev, struct device_attribute *attr, \
556 struct w83627ehf_data *data = w83627ehf_update_device(dev); \
557 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
558 int nr = sensor_attr->index; \
559 return sprintf(buf, "%ld\n", in_from_reg(data->reg[nr], nr)); \
565 #define store_in_reg(REG, reg) \
567 store_in_##reg (struct device *dev, struct device_attribute *attr, \
568 const char *buf, size_t count) \
570 struct i2c_client *client = to_i2c_client(dev); \
571 struct w83627ehf_data *data = i2c_get_clientdata(client); \
572 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
573 int nr = sensor_attr->index; \
574 u32 val = simple_strtoul(buf, NULL, 10); \
576 mutex_lock(&data->update_lock); \
577 data->in_##reg[nr] = in_to_reg(val, nr); \
578 w83627ehf_write_value(client, W83627EHF_REG_IN_##REG(nr), \
579 data->in_##reg[nr]); \
580 mutex_unlock(&data->update_lock); \
584 store_in_reg(MIN, min)
585 store_in_reg(MAX, max)
587 static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, char *buf)
589 struct w83627ehf_data *data = w83627ehf_update_device(dev);
590 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
591 int nr = sensor_attr->index;
592 return sprintf(buf, "%u\n", (data->alarms >> nr) & 0x01);
595 static struct sensor_device_attribute sda_in_input[] = {
596 SENSOR_ATTR(in0_input, S_IRUGO, show_in, NULL, 0),
597 SENSOR_ATTR(in1_input, S_IRUGO, show_in, NULL, 1),
598 SENSOR_ATTR(in2_input, S_IRUGO, show_in, NULL, 2),
599 SENSOR_ATTR(in3_input, S_IRUGO, show_in, NULL, 3),
600 SENSOR_ATTR(in4_input, S_IRUGO, show_in, NULL, 4),
601 SENSOR_ATTR(in5_input, S_IRUGO, show_in, NULL, 5),
602 SENSOR_ATTR(in6_input, S_IRUGO, show_in, NULL, 6),
603 SENSOR_ATTR(in7_input, S_IRUGO, show_in, NULL, 7),
604 SENSOR_ATTR(in8_input, S_IRUGO, show_in, NULL, 8),
605 SENSOR_ATTR(in9_input, S_IRUGO, show_in, NULL, 9),
608 static struct sensor_device_attribute sda_in_alarm[] = {
609 SENSOR_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0),
610 SENSOR_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1),
611 SENSOR_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2),
612 SENSOR_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3),
613 SENSOR_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8),
614 SENSOR_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 21),
615 SENSOR_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 20),
616 SENSOR_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 16),
617 SENSOR_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 17),
618 SENSOR_ATTR(in9_alarm, S_IRUGO, show_alarm, NULL, 19),
621 static struct sensor_device_attribute sda_in_min[] = {
622 SENSOR_ATTR(in0_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 0),
623 SENSOR_ATTR(in1_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 1),
624 SENSOR_ATTR(in2_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 2),
625 SENSOR_ATTR(in3_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 3),
626 SENSOR_ATTR(in4_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 4),
627 SENSOR_ATTR(in5_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 5),
628 SENSOR_ATTR(in6_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 6),
629 SENSOR_ATTR(in7_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 7),
630 SENSOR_ATTR(in8_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 8),
631 SENSOR_ATTR(in9_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 9),
634 static struct sensor_device_attribute sda_in_max[] = {
635 SENSOR_ATTR(in0_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 0),
636 SENSOR_ATTR(in1_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 1),
637 SENSOR_ATTR(in2_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 2),
638 SENSOR_ATTR(in3_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 3),
639 SENSOR_ATTR(in4_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 4),
640 SENSOR_ATTR(in5_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 5),
641 SENSOR_ATTR(in6_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 6),
642 SENSOR_ATTR(in7_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 7),
643 SENSOR_ATTR(in8_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 8),
644 SENSOR_ATTR(in9_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 9),
647 #define show_fan_reg(reg) \
649 show_##reg(struct device *dev, struct device_attribute *attr, \
652 struct w83627ehf_data *data = w83627ehf_update_device(dev); \
653 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
654 int nr = sensor_attr->index; \
655 return sprintf(buf, "%d\n", \
656 fan_from_reg(data->reg[nr], \
657 div_from_reg(data->fan_div[nr]))); \
660 show_fan_reg(fan_min);
663 show_fan_div(struct device *dev, struct device_attribute *attr,
666 struct w83627ehf_data *data = w83627ehf_update_device(dev);
667 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
668 int nr = sensor_attr->index;
669 return sprintf(buf, "%u\n", div_from_reg(data->fan_div[nr]));
673 store_fan_min(struct device *dev, struct device_attribute *attr,
674 const char *buf, size_t count)
676 struct i2c_client *client = to_i2c_client(dev);
677 struct w83627ehf_data *data = i2c_get_clientdata(client);
678 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
679 int nr = sensor_attr->index;
680 unsigned int val = simple_strtoul(buf, NULL, 10);
684 mutex_lock(&data->update_lock);
686 /* No min limit, alarm disabled */
687 data->fan_min[nr] = 255;
688 new_div = data->fan_div[nr]; /* No change */
689 dev_info(dev, "fan%u low limit and alarm disabled\n", nr + 1);
690 } else if ((reg = 1350000U / val) >= 128 * 255) {
691 /* Speed below this value cannot possibly be represented,
692 even with the highest divider (128) */
693 data->fan_min[nr] = 254;
694 new_div = 7; /* 128 == (1 << 7) */
695 dev_warn(dev, "fan%u low limit %u below minimum %u, set to "
696 "minimum\n", nr + 1, val, fan_from_reg(254, 128));
698 /* Speed above this value cannot possibly be represented,
699 even with the lowest divider (1) */
700 data->fan_min[nr] = 1;
701 new_div = 0; /* 1 == (1 << 0) */
702 dev_warn(dev, "fan%u low limit %u above maximum %u, set to "
703 "maximum\n", nr + 1, val, fan_from_reg(1, 1));
705 /* Automatically pick the best divider, i.e. the one such
706 that the min limit will correspond to a register value
707 in the 96..192 range */
709 while (reg > 192 && new_div < 7) {
713 data->fan_min[nr] = reg;
716 /* Write both the fan clock divider (if it changed) and the new
717 fan min (unconditionally) */
718 if (new_div != data->fan_div[nr]) {
719 if (new_div > data->fan_div[nr])
720 data->fan[nr] >>= (data->fan_div[nr] - new_div);
722 data->fan[nr] <<= (new_div - data->fan_div[nr]);
724 dev_dbg(dev, "fan%u clock divider changed from %u to %u\n",
725 nr + 1, div_from_reg(data->fan_div[nr]),
726 div_from_reg(new_div));
727 data->fan_div[nr] = new_div;
728 w83627ehf_write_fan_div(client, nr);
730 w83627ehf_write_value(client, W83627EHF_REG_FAN_MIN[nr],
732 mutex_unlock(&data->update_lock);
737 static struct sensor_device_attribute sda_fan_input[] = {
738 SENSOR_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0),
739 SENSOR_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1),
740 SENSOR_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2),
741 SENSOR_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3),
742 SENSOR_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 4),
745 static struct sensor_device_attribute sda_fan_alarm[] = {
746 SENSOR_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 6),
747 SENSOR_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 7),
748 SENSOR_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 11),
749 SENSOR_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 10),
750 SENSOR_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 23),
753 static struct sensor_device_attribute sda_fan_min[] = {
754 SENSOR_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min,
756 SENSOR_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min,
758 SENSOR_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min,
760 SENSOR_ATTR(fan4_min, S_IWUSR | S_IRUGO, show_fan_min,
762 SENSOR_ATTR(fan5_min, S_IWUSR | S_IRUGO, show_fan_min,
766 static struct sensor_device_attribute sda_fan_div[] = {
767 SENSOR_ATTR(fan1_div, S_IRUGO, show_fan_div, NULL, 0),
768 SENSOR_ATTR(fan2_div, S_IRUGO, show_fan_div, NULL, 1),
769 SENSOR_ATTR(fan3_div, S_IRUGO, show_fan_div, NULL, 2),
770 SENSOR_ATTR(fan4_div, S_IRUGO, show_fan_div, NULL, 3),
771 SENSOR_ATTR(fan5_div, S_IRUGO, show_fan_div, NULL, 4),
774 #define show_temp1_reg(reg) \
776 show_##reg(struct device *dev, struct device_attribute *attr, \
779 struct w83627ehf_data *data = w83627ehf_update_device(dev); \
780 return sprintf(buf, "%d\n", temp1_from_reg(data->reg)); \
782 show_temp1_reg(temp1);
783 show_temp1_reg(temp1_max);
784 show_temp1_reg(temp1_max_hyst);
786 #define store_temp1_reg(REG, reg) \
788 store_temp1_##reg(struct device *dev, struct device_attribute *attr, \
789 const char *buf, size_t count) \
791 struct i2c_client *client = to_i2c_client(dev); \
792 struct w83627ehf_data *data = i2c_get_clientdata(client); \
793 u32 val = simple_strtoul(buf, NULL, 10); \
795 mutex_lock(&data->update_lock); \
796 data->temp1_##reg = temp1_to_reg(val, -128000, 127000); \
797 w83627ehf_write_value(client, W83627EHF_REG_TEMP1_##REG, \
798 data->temp1_##reg); \
799 mutex_unlock(&data->update_lock); \
802 store_temp1_reg(OVER, max);
803 store_temp1_reg(HYST, max_hyst);
805 #define show_temp_reg(reg) \
807 show_##reg(struct device *dev, struct device_attribute *attr, \
810 struct w83627ehf_data *data = w83627ehf_update_device(dev); \
811 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
812 int nr = sensor_attr->index; \
813 return sprintf(buf, "%d\n", \
814 LM75_TEMP_FROM_REG(data->reg[nr])); \
817 show_temp_reg(temp_max);
818 show_temp_reg(temp_max_hyst);
820 #define store_temp_reg(REG, reg) \
822 store_##reg(struct device *dev, struct device_attribute *attr, \
823 const char *buf, size_t count) \
825 struct i2c_client *client = to_i2c_client(dev); \
826 struct w83627ehf_data *data = i2c_get_clientdata(client); \
827 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
828 int nr = sensor_attr->index; \
829 u32 val = simple_strtoul(buf, NULL, 10); \
831 mutex_lock(&data->update_lock); \
832 data->reg[nr] = LM75_TEMP_TO_REG(val); \
833 w83627ehf_write_value(client, W83627EHF_REG_TEMP_##REG[nr], \
835 mutex_unlock(&data->update_lock); \
838 store_temp_reg(OVER, temp_max);
839 store_temp_reg(HYST, temp_max_hyst);
841 static struct sensor_device_attribute sda_temp[] = {
842 SENSOR_ATTR(temp1_input, S_IRUGO, show_temp1, NULL, 0),
843 SENSOR_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 0),
844 SENSOR_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 1),
845 SENSOR_ATTR(temp1_max, S_IRUGO | S_IWUSR, show_temp1_max,
847 SENSOR_ATTR(temp2_max, S_IRUGO | S_IWUSR, show_temp_max,
849 SENSOR_ATTR(temp3_max, S_IRUGO | S_IWUSR, show_temp_max,
851 SENSOR_ATTR(temp1_max_hyst, S_IRUGO | S_IWUSR, show_temp1_max_hyst,
852 store_temp1_max_hyst, 0),
853 SENSOR_ATTR(temp2_max_hyst, S_IRUGO | S_IWUSR, show_temp_max_hyst,
854 store_temp_max_hyst, 0),
855 SENSOR_ATTR(temp3_max_hyst, S_IRUGO | S_IWUSR, show_temp_max_hyst,
856 store_temp_max_hyst, 1),
857 SENSOR_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4),
858 SENSOR_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5),
859 SENSOR_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 13),
862 #define show_pwm_reg(reg) \
863 static ssize_t show_##reg (struct device *dev, struct device_attribute *attr, \
866 struct w83627ehf_data *data = w83627ehf_update_device(dev); \
867 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
868 int nr = sensor_attr->index; \
869 return sprintf(buf, "%d\n", data->reg[nr]); \
872 show_pwm_reg(pwm_mode)
873 show_pwm_reg(pwm_enable)
877 store_pwm_mode(struct device *dev, struct device_attribute *attr,
878 const char *buf, size_t count)
880 struct i2c_client *client = to_i2c_client(dev);
881 struct w83627ehf_data *data = i2c_get_clientdata(client);
882 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
883 int nr = sensor_attr->index;
884 u32 val = simple_strtoul(buf, NULL, 10);
889 mutex_lock(&data->update_lock);
890 reg = w83627ehf_read_value(client, W83627EHF_REG_PWM_ENABLE[nr]);
891 data->pwm_mode[nr] = val;
892 reg &= ~(1 << W83627EHF_PWM_MODE_SHIFT[nr]);
894 reg |= 1 << W83627EHF_PWM_MODE_SHIFT[nr];
895 w83627ehf_write_value(client, W83627EHF_REG_PWM_ENABLE[nr], reg);
896 mutex_unlock(&data->update_lock);
901 store_pwm(struct device *dev, struct device_attribute *attr,
902 const char *buf, size_t count)
904 struct i2c_client *client = to_i2c_client(dev);
905 struct w83627ehf_data *data = i2c_get_clientdata(client);
906 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
907 int nr = sensor_attr->index;
908 u32 val = SENSORS_LIMIT(simple_strtoul(buf, NULL, 10), 0, 255);
910 mutex_lock(&data->update_lock);
912 w83627ehf_write_value(client, W83627EHF_REG_PWM[nr], val);
913 mutex_unlock(&data->update_lock);
918 store_pwm_enable(struct device *dev, struct device_attribute *attr,
919 const char *buf, size_t count)
921 struct i2c_client *client = to_i2c_client(dev);
922 struct w83627ehf_data *data = i2c_get_clientdata(client);
923 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
924 int nr = sensor_attr->index;
925 u32 val = simple_strtoul(buf, NULL, 10);
928 if (!val || (val > 2)) /* only modes 1 and 2 are supported */
930 mutex_lock(&data->update_lock);
931 reg = w83627ehf_read_value(client, W83627EHF_REG_PWM_ENABLE[nr]);
932 data->pwm_enable[nr] = val;
933 reg &= ~(0x03 << W83627EHF_PWM_ENABLE_SHIFT[nr]);
934 reg |= (val - 1) << W83627EHF_PWM_ENABLE_SHIFT[nr];
935 w83627ehf_write_value(client, W83627EHF_REG_PWM_ENABLE[nr], reg);
936 mutex_unlock(&data->update_lock);
941 #define show_tol_temp(reg) \
942 static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
945 struct w83627ehf_data *data = w83627ehf_update_device(dev); \
946 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
947 int nr = sensor_attr->index; \
948 return sprintf(buf, "%d\n", temp1_from_reg(data->reg[nr])); \
951 show_tol_temp(tolerance)
952 show_tol_temp(target_temp)
955 store_target_temp(struct device *dev, struct device_attribute *attr,
956 const char *buf, size_t count)
958 struct i2c_client *client = to_i2c_client(dev);
959 struct w83627ehf_data *data = i2c_get_clientdata(client);
960 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
961 int nr = sensor_attr->index;
962 u8 val = temp1_to_reg(simple_strtoul(buf, NULL, 10), 0, 127000);
964 mutex_lock(&data->update_lock);
965 data->target_temp[nr] = val;
966 w83627ehf_write_value(client, W83627EHF_REG_TARGET[nr], val);
967 mutex_unlock(&data->update_lock);
972 store_tolerance(struct device *dev, struct device_attribute *attr,
973 const char *buf, size_t count)
975 struct i2c_client *client = to_i2c_client(dev);
976 struct w83627ehf_data *data = i2c_get_clientdata(client);
977 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
978 int nr = sensor_attr->index;
980 /* Limit the temp to 0C - 15C */
981 u8 val = temp1_to_reg(simple_strtoul(buf, NULL, 10), 0, 15000);
983 mutex_lock(&data->update_lock);
984 reg = w83627ehf_read_value(client, W83627EHF_REG_TOLERANCE[nr]);
985 data->tolerance[nr] = val;
987 reg = (reg & 0x0f) | (val << 4);
989 reg = (reg & 0xf0) | val;
990 w83627ehf_write_value(client, W83627EHF_REG_TOLERANCE[nr], reg);
991 mutex_unlock(&data->update_lock);
995 static struct sensor_device_attribute sda_pwm[] = {
996 SENSOR_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0),
997 SENSOR_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1),
998 SENSOR_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2),
999 SENSOR_ATTR(pwm4, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 3),
1002 static struct sensor_device_attribute sda_pwm_mode[] = {
1003 SENSOR_ATTR(pwm1_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
1005 SENSOR_ATTR(pwm2_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
1007 SENSOR_ATTR(pwm3_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
1009 SENSOR_ATTR(pwm4_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
1013 static struct sensor_device_attribute sda_pwm_enable[] = {
1014 SENSOR_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
1015 store_pwm_enable, 0),
1016 SENSOR_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
1017 store_pwm_enable, 1),
1018 SENSOR_ATTR(pwm3_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
1019 store_pwm_enable, 2),
1020 SENSOR_ATTR(pwm4_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
1021 store_pwm_enable, 3),
1024 static struct sensor_device_attribute sda_target_temp[] = {
1025 SENSOR_ATTR(pwm1_target, S_IWUSR | S_IRUGO, show_target_temp,
1026 store_target_temp, 0),
1027 SENSOR_ATTR(pwm2_target, S_IWUSR | S_IRUGO, show_target_temp,
1028 store_target_temp, 1),
1029 SENSOR_ATTR(pwm3_target, S_IWUSR | S_IRUGO, show_target_temp,
1030 store_target_temp, 2),
1031 SENSOR_ATTR(pwm4_target, S_IWUSR | S_IRUGO, show_target_temp,
1032 store_target_temp, 3),
1035 static struct sensor_device_attribute sda_tolerance[] = {
1036 SENSOR_ATTR(pwm1_tolerance, S_IWUSR | S_IRUGO, show_tolerance,
1037 store_tolerance, 0),
1038 SENSOR_ATTR(pwm2_tolerance, S_IWUSR | S_IRUGO, show_tolerance,
1039 store_tolerance, 1),
1040 SENSOR_ATTR(pwm3_tolerance, S_IWUSR | S_IRUGO, show_tolerance,
1041 store_tolerance, 2),
1042 SENSOR_ATTR(pwm4_tolerance, S_IWUSR | S_IRUGO, show_tolerance,
1043 store_tolerance, 3),
1046 /* Smart Fan registers */
1048 #define fan_functions(reg, REG) \
1049 static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
1052 struct w83627ehf_data *data = w83627ehf_update_device(dev); \
1053 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
1054 int nr = sensor_attr->index; \
1055 return sprintf(buf, "%d\n", data->reg[nr]); \
1058 store_##reg(struct device *dev, struct device_attribute *attr, \
1059 const char *buf, size_t count) \
1061 struct i2c_client *client = to_i2c_client(dev); \
1062 struct w83627ehf_data *data = i2c_get_clientdata(client); \
1063 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
1064 int nr = sensor_attr->index; \
1065 u32 val = SENSORS_LIMIT(simple_strtoul(buf, NULL, 10), 1, 255); \
1066 mutex_lock(&data->update_lock); \
1067 data->reg[nr] = val; \
1068 w83627ehf_write_value(client, W83627EHF_REG_##REG[nr], val); \
1069 mutex_unlock(&data->update_lock); \
1073 fan_functions(fan_min_output, FAN_MIN_OUTPUT)
1075 #define fan_time_functions(reg, REG) \
1076 static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
1079 struct w83627ehf_data *data = w83627ehf_update_device(dev); \
1080 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
1081 int nr = sensor_attr->index; \
1082 return sprintf(buf, "%d\n", \
1083 step_time_from_reg(data->reg[nr], data->pwm_mode[nr])); \
1087 store_##reg(struct device *dev, struct device_attribute *attr, \
1088 const char *buf, size_t count) \
1090 struct i2c_client *client = to_i2c_client(dev); \
1091 struct w83627ehf_data *data = i2c_get_clientdata(client); \
1092 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
1093 int nr = sensor_attr->index; \
1094 u8 val = step_time_to_reg(simple_strtoul(buf, NULL, 10), \
1095 data->pwm_mode[nr]); \
1096 mutex_lock(&data->update_lock); \
1097 data->reg[nr] = val; \
1098 w83627ehf_write_value(client, W83627EHF_REG_##REG[nr], val); \
1099 mutex_unlock(&data->update_lock); \
1103 fan_time_functions(fan_stop_time, FAN_STOP_TIME)
1106 static struct sensor_device_attribute sda_sf3_arrays_fan4[] = {
1107 SENSOR_ATTR(pwm4_stop_time, S_IWUSR | S_IRUGO, show_fan_stop_time,
1108 store_fan_stop_time, 3),
1109 SENSOR_ATTR(pwm4_min_output, S_IWUSR | S_IRUGO, show_fan_min_output,
1110 store_fan_min_output, 3),
1113 static struct sensor_device_attribute sda_sf3_arrays[] = {
1114 SENSOR_ATTR(pwm1_stop_time, S_IWUSR | S_IRUGO, show_fan_stop_time,
1115 store_fan_stop_time, 0),
1116 SENSOR_ATTR(pwm2_stop_time, S_IWUSR | S_IRUGO, show_fan_stop_time,
1117 store_fan_stop_time, 1),
1118 SENSOR_ATTR(pwm3_stop_time, S_IWUSR | S_IRUGO, show_fan_stop_time,
1119 store_fan_stop_time, 2),
1120 SENSOR_ATTR(pwm1_min_output, S_IWUSR | S_IRUGO, show_fan_min_output,
1121 store_fan_min_output, 0),
1122 SENSOR_ATTR(pwm2_min_output, S_IWUSR | S_IRUGO, show_fan_min_output,
1123 store_fan_min_output, 1),
1124 SENSOR_ATTR(pwm3_min_output, S_IWUSR | S_IRUGO, show_fan_min_output,
1125 store_fan_min_output, 2),
1129 * Driver and client management
1132 static void w83627ehf_device_remove_files(struct device *dev)
1134 /* some entries in the following arrays may not have been used in
1135 * device_create_file(), but device_remove_file() will ignore them */
1138 for (i = 0; i < ARRAY_SIZE(sda_sf3_arrays); i++)
1139 device_remove_file(dev, &sda_sf3_arrays[i].dev_attr);
1140 for (i = 0; i < ARRAY_SIZE(sda_sf3_arrays_fan4); i++)
1141 device_remove_file(dev, &sda_sf3_arrays_fan4[i].dev_attr);
1142 for (i = 0; i < w83627ehf_num_in; i++) {
1143 device_remove_file(dev, &sda_in_input[i].dev_attr);
1144 device_remove_file(dev, &sda_in_alarm[i].dev_attr);
1145 device_remove_file(dev, &sda_in_min[i].dev_attr);
1146 device_remove_file(dev, &sda_in_max[i].dev_attr);
1148 for (i = 0; i < 5; i++) {
1149 device_remove_file(dev, &sda_fan_input[i].dev_attr);
1150 device_remove_file(dev, &sda_fan_alarm[i].dev_attr);
1151 device_remove_file(dev, &sda_fan_div[i].dev_attr);
1152 device_remove_file(dev, &sda_fan_min[i].dev_attr);
1154 for (i = 0; i < 4; i++) {
1155 device_remove_file(dev, &sda_pwm[i].dev_attr);
1156 device_remove_file(dev, &sda_pwm_mode[i].dev_attr);
1157 device_remove_file(dev, &sda_pwm_enable[i].dev_attr);
1158 device_remove_file(dev, &sda_target_temp[i].dev_attr);
1159 device_remove_file(dev, &sda_tolerance[i].dev_attr);
1161 for (i = 0; i < ARRAY_SIZE(sda_temp); i++)
1162 device_remove_file(dev, &sda_temp[i].dev_attr);
1165 static struct i2c_driver w83627ehf_driver;
1167 static void w83627ehf_init_client(struct i2c_client *client)
1172 /* Start monitoring is needed */
1173 tmp = w83627ehf_read_value(client, W83627EHF_REG_CONFIG);
1175 w83627ehf_write_value(client, W83627EHF_REG_CONFIG,
1178 /* Enable temp2 and temp3 if needed */
1179 for (i = 0; i < 2; i++) {
1180 tmp = w83627ehf_read_value(client,
1181 W83627EHF_REG_TEMP_CONFIG[i]);
1183 w83627ehf_write_value(client,
1184 W83627EHF_REG_TEMP_CONFIG[i],
1189 static int w83627ehf_detect(struct i2c_adapter *adapter)
1191 struct i2c_client *client;
1192 struct w83627ehf_data *data;
1194 u8 fan4pin, fan5pin;
1197 if (!request_region(address + REGION_OFFSET, REGION_LENGTH,
1198 w83627ehf_driver.driver.name)) {
1203 if (!(data = kzalloc(sizeof(struct w83627ehf_data), GFP_KERNEL))) {
1208 client = &data->client;
1209 i2c_set_clientdata(client, data);
1210 client->addr = address;
1211 mutex_init(&data->lock);
1212 client->adapter = adapter;
1213 client->driver = &w83627ehf_driver;
1217 if (w83627ehf_num_in == 9)
1218 strlcpy(client->name, "w83627dhg", I2C_NAME_SIZE);
1219 else /* just say ehf. 627EHG is 627EHF in lead-free packaging. */
1220 strlcpy(client->name, "w83627ehf", I2C_NAME_SIZE);
1223 mutex_init(&data->update_lock);
1225 /* Tell the i2c layer a new client has arrived */
1226 if ((err = i2c_attach_client(client)))
1229 /* Initialize the chip */
1230 w83627ehf_init_client(client);
1232 /* A few vars need to be filled upon startup */
1233 for (i = 0; i < 5; i++)
1234 data->fan_min[i] = w83627ehf_read_value(client,
1235 W83627EHF_REG_FAN_MIN[i]);
1237 /* fan4 and fan5 share some pins with the GPIO and serial flash */
1240 fan5pin = superio_inb(0x24) & 0x2;
1241 fan4pin = superio_inb(0x29) & 0x6;
1244 /* It looks like fan4 and fan5 pins can be alternatively used
1245 as fan on/off switches, but fan5 control is write only :/
1246 We assume that if the serial interface is disabled, designers
1247 connected fan5 as input unless they are emitting log 1, which
1248 is not the default. */
1250 data->has_fan = 0x07; /* fan1, fan2 and fan3 */
1251 i = w83627ehf_read_value(client, W83627EHF_REG_FANDIV1);
1252 if ((i & (1 << 2)) && (!fan4pin))
1253 data->has_fan |= (1 << 3);
1254 if (!(i & (1 << 1)) && (!fan5pin))
1255 data->has_fan |= (1 << 4);
1257 /* Register sysfs hooks */
1258 for (i = 0; i < ARRAY_SIZE(sda_sf3_arrays); i++)
1259 if ((err = device_create_file(dev,
1260 &sda_sf3_arrays[i].dev_attr)))
1263 /* if fan4 is enabled create the sf3 files for it */
1264 if (data->has_fan & (1 << 3))
1265 for (i = 0; i < ARRAY_SIZE(sda_sf3_arrays_fan4); i++) {
1266 if ((err = device_create_file(dev,
1267 &sda_sf3_arrays_fan4[i].dev_attr)))
1271 for (i = 0; i < w83627ehf_num_in; i++)
1272 if ((err = device_create_file(dev, &sda_in_input[i].dev_attr))
1273 || (err = device_create_file(dev,
1274 &sda_in_alarm[i].dev_attr))
1275 || (err = device_create_file(dev,
1276 &sda_in_min[i].dev_attr))
1277 || (err = device_create_file(dev,
1278 &sda_in_max[i].dev_attr)))
1281 for (i = 0; i < 5; i++) {
1282 if (data->has_fan & (1 << i)) {
1283 if ((err = device_create_file(dev,
1284 &sda_fan_input[i].dev_attr))
1285 || (err = device_create_file(dev,
1286 &sda_fan_alarm[i].dev_attr))
1287 || (err = device_create_file(dev,
1288 &sda_fan_div[i].dev_attr))
1289 || (err = device_create_file(dev,
1290 &sda_fan_min[i].dev_attr)))
1292 if (i < 4 && /* w83627ehf only has 4 pwm */
1293 ((err = device_create_file(dev,
1294 &sda_pwm[i].dev_attr))
1295 || (err = device_create_file(dev,
1296 &sda_pwm_mode[i].dev_attr))
1297 || (err = device_create_file(dev,
1298 &sda_pwm_enable[i].dev_attr))
1299 || (err = device_create_file(dev,
1300 &sda_target_temp[i].dev_attr))
1301 || (err = device_create_file(dev,
1302 &sda_tolerance[i].dev_attr))))
1307 for (i = 0; i < ARRAY_SIZE(sda_temp); i++)
1308 if ((err = device_create_file(dev, &sda_temp[i].dev_attr)))
1311 data->class_dev = hwmon_device_register(dev);
1312 if (IS_ERR(data->class_dev)) {
1313 err = PTR_ERR(data->class_dev);
1320 w83627ehf_device_remove_files(dev);
1321 i2c_detach_client(client);
1325 release_region(address + REGION_OFFSET, REGION_LENGTH);
1330 static int w83627ehf_detach_client(struct i2c_client *client)
1332 struct w83627ehf_data *data = i2c_get_clientdata(client);
1335 hwmon_device_unregister(data->class_dev);
1336 w83627ehf_device_remove_files(&client->dev);
1338 if ((err = i2c_detach_client(client)))
1340 release_region(client->addr + REGION_OFFSET, REGION_LENGTH);
1346 static struct i2c_driver w83627ehf_driver = {
1348 .owner = THIS_MODULE,
1349 .name = "w83627ehf",
1351 .attach_adapter = w83627ehf_detect,
1352 .detach_client = w83627ehf_detach_client,
1355 static int __init w83627ehf_find(int sioaddr, unsigned short *addr)
1363 val = (superio_inb(SIO_REG_DEVID) << 8)
1364 | superio_inb(SIO_REG_DEVID + 1);
1365 switch (val & SIO_ID_MASK) {
1366 case SIO_W83627DHG_ID:
1367 w83627ehf_num_in = 9;
1369 case SIO_W83627EHF_ID:
1370 case SIO_W83627EHG_ID:
1371 w83627ehf_num_in = 10;
1374 printk(KERN_WARNING "w83627ehf: unsupported chip ID: 0x%04x\n",
1380 superio_select(W83627EHF_LD_HWM);
1381 val = (superio_inb(SIO_REG_ADDR) << 8)
1382 | superio_inb(SIO_REG_ADDR + 1);
1383 *addr = val & REGION_ALIGNMENT;
1389 /* Activate logical device if needed */
1390 val = superio_inb(SIO_REG_ENABLE);
1392 superio_outb(SIO_REG_ENABLE, val | 0x01);
1398 static int __init sensors_w83627ehf_init(void)
1400 if (w83627ehf_find(0x2e, &address)
1401 && w83627ehf_find(0x4e, &address))
1404 return i2c_isa_add_driver(&w83627ehf_driver);
1407 static void __exit sensors_w83627ehf_exit(void)
1409 i2c_isa_del_driver(&w83627ehf_driver);
1412 MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
1413 MODULE_DESCRIPTION("W83627EHF driver");
1414 MODULE_LICENSE("GPL");
1416 module_init(sensors_w83627ehf_init);
1417 module_exit(sensors_w83627ehf_exit);