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
39 w83627dhg-p 9 5 4 3 0xb070 0xc1 0x5ca3
40 w83667hg 9 5 3 3 0xa510 0xc1 0x5ca3
43 #include <linux/module.h>
44 #include <linux/init.h>
45 #include <linux/slab.h>
46 #include <linux/jiffies.h>
47 #include <linux/platform_device.h>
48 #include <linux/hwmon.h>
49 #include <linux/hwmon-sysfs.h>
50 #include <linux/hwmon-vid.h>
51 #include <linux/err.h>
52 #include <linux/mutex.h>
53 #include <linux/acpi.h>
57 enum kinds { w83627ehf, w83627dhg, w83627dhg_p, w83667hg };
59 /* used to set data->name = w83627ehf_device_names[data->sio_kind] */
60 static const char * w83627ehf_device_names[] = {
67 static unsigned short force_id;
68 module_param(force_id, ushort, 0);
69 MODULE_PARM_DESC(force_id, "Override the detected device ID");
71 #define DRVNAME "w83627ehf"
74 * Super-I/O constants and functions
77 #define W83627EHF_LD_HWM 0x0b
78 #define W83667HG_LD_VID 0x0d
80 #define SIO_REG_LDSEL 0x07 /* Logical device select */
81 #define SIO_REG_DEVID 0x20 /* Device ID (2 bytes) */
82 #define SIO_REG_EN_VRM10 0x2C /* GPIO3, GPIO4 selection */
83 #define SIO_REG_ENABLE 0x30 /* Logical device enable */
84 #define SIO_REG_ADDR 0x60 /* Logical device address (2 bytes) */
85 #define SIO_REG_VID_CTRL 0xF0 /* VID control */
86 #define SIO_REG_VID_DATA 0xF1 /* VID data */
88 #define SIO_W83627EHF_ID 0x8850
89 #define SIO_W83627EHG_ID 0x8860
90 #define SIO_W83627DHG_ID 0xa020
91 #define SIO_W83627DHG_P_ID 0xb070
92 #define SIO_W83667HG_ID 0xa510
93 #define SIO_ID_MASK 0xFFF0
96 superio_outb(int ioreg, int reg, int val)
103 superio_inb(int ioreg, int reg)
106 return inb(ioreg + 1);
110 superio_select(int ioreg, int ld)
112 outb(SIO_REG_LDSEL, ioreg);
117 superio_enter(int ioreg)
124 superio_exit(int ioreg)
127 outb(0x02, ioreg + 1);
134 #define IOREGION_ALIGNMENT ~7
135 #define IOREGION_OFFSET 5
136 #define IOREGION_LENGTH 2
137 #define ADDR_REG_OFFSET 0
138 #define DATA_REG_OFFSET 1
140 #define W83627EHF_REG_BANK 0x4E
141 #define W83627EHF_REG_CONFIG 0x40
143 /* Not currently used:
144 * REG_MAN_ID has the value 0x5ca3 for all supported chips.
145 * REG_CHIP_ID == 0x88/0xa1/0xc1 depending on chip model.
146 * REG_MAN_ID is at port 0x4f
147 * REG_CHIP_ID is at port 0x58 */
149 static const u16 W83627EHF_REG_FAN[] = { 0x28, 0x29, 0x2a, 0x3f, 0x553 };
150 static const u16 W83627EHF_REG_FAN_MIN[] = { 0x3b, 0x3c, 0x3d, 0x3e, 0x55c };
152 /* The W83627EHF registers for nr=7,8,9 are in bank 5 */
153 #define W83627EHF_REG_IN_MAX(nr) ((nr < 7) ? (0x2b + (nr) * 2) : \
154 (0x554 + (((nr) - 7) * 2)))
155 #define W83627EHF_REG_IN_MIN(nr) ((nr < 7) ? (0x2c + (nr) * 2) : \
156 (0x555 + (((nr) - 7) * 2)))
157 #define W83627EHF_REG_IN(nr) ((nr < 7) ? (0x20 + (nr)) : \
160 #define W83627EHF_REG_TEMP1 0x27
161 #define W83627EHF_REG_TEMP1_HYST 0x3a
162 #define W83627EHF_REG_TEMP1_OVER 0x39
163 static const u16 W83627EHF_REG_TEMP[] = { 0x150, 0x250 };
164 static const u16 W83627EHF_REG_TEMP_HYST[] = { 0x153, 0x253 };
165 static const u16 W83627EHF_REG_TEMP_OVER[] = { 0x155, 0x255 };
166 static const u16 W83627EHF_REG_TEMP_CONFIG[] = { 0x152, 0x252 };
168 /* Fan clock dividers are spread over the following five registers */
169 #define W83627EHF_REG_FANDIV1 0x47
170 #define W83627EHF_REG_FANDIV2 0x4B
171 #define W83627EHF_REG_VBAT 0x5D
172 #define W83627EHF_REG_DIODE 0x59
173 #define W83627EHF_REG_SMI_OVT 0x4C
175 #define W83627EHF_REG_ALARM1 0x459
176 #define W83627EHF_REG_ALARM2 0x45A
177 #define W83627EHF_REG_ALARM3 0x45B
179 /* SmartFan registers */
180 /* DC or PWM output fan configuration */
181 static const u8 W83627EHF_REG_PWM_ENABLE[] = {
182 0x04, /* SYS FAN0 output mode and PWM mode */
183 0x04, /* CPU FAN0 output mode and PWM mode */
184 0x12, /* AUX FAN mode */
185 0x62, /* CPU fan1 mode */
188 static const u8 W83627EHF_PWM_MODE_SHIFT[] = { 0, 1, 0, 6 };
189 static const u8 W83627EHF_PWM_ENABLE_SHIFT[] = { 2, 4, 1, 4 };
191 /* FAN Duty Cycle, be used to control */
192 static const u8 W83627EHF_REG_PWM[] = { 0x01, 0x03, 0x11, 0x61 };
193 static const u8 W83627EHF_REG_TARGET[] = { 0x05, 0x06, 0x13, 0x63 };
194 static const u8 W83627EHF_REG_TOLERANCE[] = { 0x07, 0x07, 0x14, 0x62 };
197 /* Advanced Fan control, some values are common for all fans */
198 static const u8 W83627EHF_REG_FAN_MIN_OUTPUT[] = { 0x08, 0x09, 0x15, 0x64 };
199 static const u8 W83627EHF_REG_FAN_STOP_TIME[] = { 0x0C, 0x0D, 0x17, 0x66 };
205 /* 1 is PWM mode, output in ms */
206 static inline unsigned int step_time_from_reg(u8 reg, u8 mode)
208 return mode ? 100 * reg : 400 * reg;
211 static inline u8 step_time_to_reg(unsigned int msec, u8 mode)
213 return SENSORS_LIMIT((mode ? (msec + 50) / 100 :
214 (msec + 200) / 400), 1, 255);
217 static inline unsigned int
218 fan_from_reg(u8 reg, unsigned int div)
220 if (reg == 0 || reg == 255)
222 return 1350000U / (reg * div);
225 static inline unsigned int
232 temp1_from_reg(s8 reg)
238 temp1_to_reg(long temp, int min, int max)
245 return (temp - 500) / 1000;
246 return (temp + 500) / 1000;
249 /* Some of analog inputs have internal scaling (2x), 8mV is ADC LSB */
251 static u8 scale_in[10] = { 8, 8, 16, 16, 8, 8, 8, 16, 16, 8 };
253 static inline long in_from_reg(u8 reg, u8 nr)
255 return reg * scale_in[nr];
258 static inline u8 in_to_reg(u32 val, u8 nr)
260 return SENSORS_LIMIT(((val + (scale_in[nr] / 2)) / scale_in[nr]), 0, 255);
264 * Data structures and manipulation thereof
267 struct w83627ehf_data {
268 int addr; /* IO base of hw monitor block */
271 struct device *hwmon_dev;
274 struct mutex update_lock;
275 char valid; /* !=0 if following fields are valid */
276 unsigned long last_updated; /* In jiffies */
278 /* Register values */
279 u8 in_num; /* number of in inputs we have */
280 u8 in[10]; /* Register value */
281 u8 in_max[10]; /* Register value */
282 u8 in_min[10]; /* Register value */
286 u8 has_fan; /* some fan inputs can be disabled */
293 s16 temp_max_hyst[2];
296 u8 pwm_mode[4]; /* 0->DC variable voltage, 1->PWM variable duty cycle */
297 u8 pwm_enable[4]; /* 1->manual
298 2->thermal cruise (also called SmartFan I) */
299 u8 pwm_num; /* number of pwm */
304 u8 fan_min_output[4]; /* minimum fan speed */
314 struct w83627ehf_sio_data {
319 static inline int is_word_sized(u16 reg)
321 return (((reg & 0xff00) == 0x100
322 || (reg & 0xff00) == 0x200)
323 && ((reg & 0x00ff) == 0x50
324 || (reg & 0x00ff) == 0x53
325 || (reg & 0x00ff) == 0x55));
328 /* Registers 0x50-0x5f are banked */
329 static inline void w83627ehf_set_bank(struct w83627ehf_data *data, u16 reg)
331 if ((reg & 0x00f0) == 0x50) {
332 outb_p(W83627EHF_REG_BANK, data->addr + ADDR_REG_OFFSET);
333 outb_p(reg >> 8, data->addr + DATA_REG_OFFSET);
337 /* Not strictly necessary, but play it safe for now */
338 static inline void w83627ehf_reset_bank(struct w83627ehf_data *data, u16 reg)
341 outb_p(W83627EHF_REG_BANK, data->addr + ADDR_REG_OFFSET);
342 outb_p(0, data->addr + DATA_REG_OFFSET);
346 static u16 w83627ehf_read_value(struct w83627ehf_data *data, u16 reg)
348 int res, word_sized = is_word_sized(reg);
350 mutex_lock(&data->lock);
352 w83627ehf_set_bank(data, reg);
353 outb_p(reg & 0xff, data->addr + ADDR_REG_OFFSET);
354 res = inb_p(data->addr + DATA_REG_OFFSET);
356 outb_p((reg & 0xff) + 1,
357 data->addr + ADDR_REG_OFFSET);
358 res = (res << 8) + inb_p(data->addr + DATA_REG_OFFSET);
360 w83627ehf_reset_bank(data, reg);
362 mutex_unlock(&data->lock);
367 static int w83627ehf_write_value(struct w83627ehf_data *data, u16 reg, u16 value)
369 int word_sized = is_word_sized(reg);
371 mutex_lock(&data->lock);
373 w83627ehf_set_bank(data, reg);
374 outb_p(reg & 0xff, data->addr + ADDR_REG_OFFSET);
376 outb_p(value >> 8, data->addr + DATA_REG_OFFSET);
377 outb_p((reg & 0xff) + 1,
378 data->addr + ADDR_REG_OFFSET);
380 outb_p(value & 0xff, data->addr + DATA_REG_OFFSET);
381 w83627ehf_reset_bank(data, reg);
383 mutex_unlock(&data->lock);
387 /* This function assumes that the caller holds data->update_lock */
388 static void w83627ehf_write_fan_div(struct w83627ehf_data *data, int nr)
394 reg = (w83627ehf_read_value(data, W83627EHF_REG_FANDIV1) & 0xcf)
395 | ((data->fan_div[0] & 0x03) << 4);
396 /* fan5 input control bit is write only, compute the value */
397 reg |= (data->has_fan & (1 << 4)) ? 1 : 0;
398 w83627ehf_write_value(data, W83627EHF_REG_FANDIV1, reg);
399 reg = (w83627ehf_read_value(data, W83627EHF_REG_VBAT) & 0xdf)
400 | ((data->fan_div[0] & 0x04) << 3);
401 w83627ehf_write_value(data, W83627EHF_REG_VBAT, reg);
404 reg = (w83627ehf_read_value(data, W83627EHF_REG_FANDIV1) & 0x3f)
405 | ((data->fan_div[1] & 0x03) << 6);
406 /* fan5 input control bit is write only, compute the value */
407 reg |= (data->has_fan & (1 << 4)) ? 1 : 0;
408 w83627ehf_write_value(data, W83627EHF_REG_FANDIV1, reg);
409 reg = (w83627ehf_read_value(data, W83627EHF_REG_VBAT) & 0xbf)
410 | ((data->fan_div[1] & 0x04) << 4);
411 w83627ehf_write_value(data, W83627EHF_REG_VBAT, reg);
414 reg = (w83627ehf_read_value(data, W83627EHF_REG_FANDIV2) & 0x3f)
415 | ((data->fan_div[2] & 0x03) << 6);
416 w83627ehf_write_value(data, W83627EHF_REG_FANDIV2, reg);
417 reg = (w83627ehf_read_value(data, W83627EHF_REG_VBAT) & 0x7f)
418 | ((data->fan_div[2] & 0x04) << 5);
419 w83627ehf_write_value(data, W83627EHF_REG_VBAT, reg);
422 reg = (w83627ehf_read_value(data, W83627EHF_REG_DIODE) & 0xfc)
423 | (data->fan_div[3] & 0x03);
424 w83627ehf_write_value(data, W83627EHF_REG_DIODE, reg);
425 reg = (w83627ehf_read_value(data, W83627EHF_REG_SMI_OVT) & 0x7f)
426 | ((data->fan_div[3] & 0x04) << 5);
427 w83627ehf_write_value(data, W83627EHF_REG_SMI_OVT, reg);
430 reg = (w83627ehf_read_value(data, W83627EHF_REG_DIODE) & 0x73)
431 | ((data->fan_div[4] & 0x03) << 2)
432 | ((data->fan_div[4] & 0x04) << 5);
433 w83627ehf_write_value(data, W83627EHF_REG_DIODE, reg);
438 static void w83627ehf_update_fan_div(struct w83627ehf_data *data)
442 i = w83627ehf_read_value(data, W83627EHF_REG_FANDIV1);
443 data->fan_div[0] = (i >> 4) & 0x03;
444 data->fan_div[1] = (i >> 6) & 0x03;
445 i = w83627ehf_read_value(data, W83627EHF_REG_FANDIV2);
446 data->fan_div[2] = (i >> 6) & 0x03;
447 i = w83627ehf_read_value(data, W83627EHF_REG_VBAT);
448 data->fan_div[0] |= (i >> 3) & 0x04;
449 data->fan_div[1] |= (i >> 4) & 0x04;
450 data->fan_div[2] |= (i >> 5) & 0x04;
451 if (data->has_fan & ((1 << 3) | (1 << 4))) {
452 i = w83627ehf_read_value(data, W83627EHF_REG_DIODE);
453 data->fan_div[3] = i & 0x03;
454 data->fan_div[4] = ((i >> 2) & 0x03)
457 if (data->has_fan & (1 << 3)) {
458 i = w83627ehf_read_value(data, W83627EHF_REG_SMI_OVT);
459 data->fan_div[3] |= (i >> 5) & 0x04;
463 static struct w83627ehf_data *w83627ehf_update_device(struct device *dev)
465 struct w83627ehf_data *data = dev_get_drvdata(dev);
466 int pwmcfg = 0, tolerance = 0; /* shut up the compiler */
469 mutex_lock(&data->update_lock);
471 if (time_after(jiffies, data->last_updated + HZ + HZ/2)
473 /* Fan clock dividers */
474 w83627ehf_update_fan_div(data);
476 /* Measured voltages and limits */
477 for (i = 0; i < data->in_num; i++) {
478 data->in[i] = w83627ehf_read_value(data,
479 W83627EHF_REG_IN(i));
480 data->in_min[i] = w83627ehf_read_value(data,
481 W83627EHF_REG_IN_MIN(i));
482 data->in_max[i] = w83627ehf_read_value(data,
483 W83627EHF_REG_IN_MAX(i));
486 /* Measured fan speeds and limits */
487 for (i = 0; i < 5; i++) {
488 if (!(data->has_fan & (1 << i)))
491 data->fan[i] = w83627ehf_read_value(data,
492 W83627EHF_REG_FAN[i]);
493 data->fan_min[i] = w83627ehf_read_value(data,
494 W83627EHF_REG_FAN_MIN[i]);
496 /* If we failed to measure the fan speed and clock
497 divider can be increased, let's try that for next
499 if (data->fan[i] == 0xff
500 && data->fan_div[i] < 0x07) {
501 dev_dbg(dev, "Increasing fan%d "
502 "clock divider from %u to %u\n",
503 i + 1, div_from_reg(data->fan_div[i]),
504 div_from_reg(data->fan_div[i] + 1));
506 w83627ehf_write_fan_div(data, i);
507 /* Preserve min limit if possible */
508 if (data->fan_min[i] >= 2
509 && data->fan_min[i] != 255)
510 w83627ehf_write_value(data,
511 W83627EHF_REG_FAN_MIN[i],
512 (data->fan_min[i] /= 2));
516 for (i = 0; i < 4; i++) {
517 /* pwmcfg, tolerance mapped for i=0, i=1 to same reg */
519 pwmcfg = w83627ehf_read_value(data,
520 W83627EHF_REG_PWM_ENABLE[i]);
521 tolerance = w83627ehf_read_value(data,
522 W83627EHF_REG_TOLERANCE[i]);
525 ((pwmcfg >> W83627EHF_PWM_MODE_SHIFT[i]) & 1)
527 data->pwm_enable[i] =
528 ((pwmcfg >> W83627EHF_PWM_ENABLE_SHIFT[i])
530 data->pwm[i] = w83627ehf_read_value(data,
531 W83627EHF_REG_PWM[i]);
532 data->fan_min_output[i] = w83627ehf_read_value(data,
533 W83627EHF_REG_FAN_MIN_OUTPUT[i]);
534 data->fan_stop_time[i] = w83627ehf_read_value(data,
535 W83627EHF_REG_FAN_STOP_TIME[i]);
536 data->target_temp[i] =
537 w83627ehf_read_value(data,
538 W83627EHF_REG_TARGET[i]) &
539 (data->pwm_mode[i] == 1 ? 0x7f : 0xff);
540 data->tolerance[i] = (tolerance >> (i == 1 ? 4 : 0))
544 /* Measured temperatures and limits */
545 data->temp1 = w83627ehf_read_value(data,
546 W83627EHF_REG_TEMP1);
547 data->temp1_max = w83627ehf_read_value(data,
548 W83627EHF_REG_TEMP1_OVER);
549 data->temp1_max_hyst = w83627ehf_read_value(data,
550 W83627EHF_REG_TEMP1_HYST);
551 for (i = 0; i < 2; i++) {
552 data->temp[i] = w83627ehf_read_value(data,
553 W83627EHF_REG_TEMP[i]);
554 data->temp_max[i] = w83627ehf_read_value(data,
555 W83627EHF_REG_TEMP_OVER[i]);
556 data->temp_max_hyst[i] = w83627ehf_read_value(data,
557 W83627EHF_REG_TEMP_HYST[i]);
560 data->alarms = w83627ehf_read_value(data,
561 W83627EHF_REG_ALARM1) |
562 (w83627ehf_read_value(data,
563 W83627EHF_REG_ALARM2) << 8) |
564 (w83627ehf_read_value(data,
565 W83627EHF_REG_ALARM3) << 16);
567 data->last_updated = jiffies;
571 mutex_unlock(&data->update_lock);
576 * Sysfs callback functions
578 #define show_in_reg(reg) \
580 show_##reg(struct device *dev, struct device_attribute *attr, \
583 struct w83627ehf_data *data = w83627ehf_update_device(dev); \
584 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
585 int nr = sensor_attr->index; \
586 return sprintf(buf, "%ld\n", in_from_reg(data->reg[nr], nr)); \
592 #define store_in_reg(REG, reg) \
594 store_in_##reg (struct device *dev, struct device_attribute *attr, \
595 const char *buf, size_t count) \
597 struct w83627ehf_data *data = dev_get_drvdata(dev); \
598 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
599 int nr = sensor_attr->index; \
600 u32 val = simple_strtoul(buf, NULL, 10); \
602 mutex_lock(&data->update_lock); \
603 data->in_##reg[nr] = in_to_reg(val, nr); \
604 w83627ehf_write_value(data, W83627EHF_REG_IN_##REG(nr), \
605 data->in_##reg[nr]); \
606 mutex_unlock(&data->update_lock); \
610 store_in_reg(MIN, min)
611 store_in_reg(MAX, max)
613 static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, char *buf)
615 struct w83627ehf_data *data = w83627ehf_update_device(dev);
616 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
617 int nr = sensor_attr->index;
618 return sprintf(buf, "%u\n", (data->alarms >> nr) & 0x01);
621 static struct sensor_device_attribute sda_in_input[] = {
622 SENSOR_ATTR(in0_input, S_IRUGO, show_in, NULL, 0),
623 SENSOR_ATTR(in1_input, S_IRUGO, show_in, NULL, 1),
624 SENSOR_ATTR(in2_input, S_IRUGO, show_in, NULL, 2),
625 SENSOR_ATTR(in3_input, S_IRUGO, show_in, NULL, 3),
626 SENSOR_ATTR(in4_input, S_IRUGO, show_in, NULL, 4),
627 SENSOR_ATTR(in5_input, S_IRUGO, show_in, NULL, 5),
628 SENSOR_ATTR(in6_input, S_IRUGO, show_in, NULL, 6),
629 SENSOR_ATTR(in7_input, S_IRUGO, show_in, NULL, 7),
630 SENSOR_ATTR(in8_input, S_IRUGO, show_in, NULL, 8),
631 SENSOR_ATTR(in9_input, S_IRUGO, show_in, NULL, 9),
634 static struct sensor_device_attribute sda_in_alarm[] = {
635 SENSOR_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0),
636 SENSOR_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1),
637 SENSOR_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2),
638 SENSOR_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3),
639 SENSOR_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8),
640 SENSOR_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 21),
641 SENSOR_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 20),
642 SENSOR_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 16),
643 SENSOR_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 17),
644 SENSOR_ATTR(in9_alarm, S_IRUGO, show_alarm, NULL, 19),
647 static struct sensor_device_attribute sda_in_min[] = {
648 SENSOR_ATTR(in0_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 0),
649 SENSOR_ATTR(in1_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 1),
650 SENSOR_ATTR(in2_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 2),
651 SENSOR_ATTR(in3_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 3),
652 SENSOR_ATTR(in4_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 4),
653 SENSOR_ATTR(in5_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 5),
654 SENSOR_ATTR(in6_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 6),
655 SENSOR_ATTR(in7_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 7),
656 SENSOR_ATTR(in8_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 8),
657 SENSOR_ATTR(in9_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 9),
660 static struct sensor_device_attribute sda_in_max[] = {
661 SENSOR_ATTR(in0_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 0),
662 SENSOR_ATTR(in1_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 1),
663 SENSOR_ATTR(in2_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 2),
664 SENSOR_ATTR(in3_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 3),
665 SENSOR_ATTR(in4_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 4),
666 SENSOR_ATTR(in5_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 5),
667 SENSOR_ATTR(in6_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 6),
668 SENSOR_ATTR(in7_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 7),
669 SENSOR_ATTR(in8_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 8),
670 SENSOR_ATTR(in9_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 9),
673 #define show_fan_reg(reg) \
675 show_##reg(struct device *dev, struct device_attribute *attr, \
678 struct w83627ehf_data *data = w83627ehf_update_device(dev); \
679 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
680 int nr = sensor_attr->index; \
681 return sprintf(buf, "%d\n", \
682 fan_from_reg(data->reg[nr], \
683 div_from_reg(data->fan_div[nr]))); \
686 show_fan_reg(fan_min);
689 show_fan_div(struct device *dev, struct device_attribute *attr,
692 struct w83627ehf_data *data = w83627ehf_update_device(dev);
693 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
694 int nr = sensor_attr->index;
695 return sprintf(buf, "%u\n", div_from_reg(data->fan_div[nr]));
699 store_fan_min(struct device *dev, struct device_attribute *attr,
700 const char *buf, size_t count)
702 struct w83627ehf_data *data = dev_get_drvdata(dev);
703 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
704 int nr = sensor_attr->index;
705 unsigned int val = simple_strtoul(buf, NULL, 10);
709 mutex_lock(&data->update_lock);
711 /* No min limit, alarm disabled */
712 data->fan_min[nr] = 255;
713 new_div = data->fan_div[nr]; /* No change */
714 dev_info(dev, "fan%u low limit and alarm disabled\n", nr + 1);
715 } else if ((reg = 1350000U / val) >= 128 * 255) {
716 /* Speed below this value cannot possibly be represented,
717 even with the highest divider (128) */
718 data->fan_min[nr] = 254;
719 new_div = 7; /* 128 == (1 << 7) */
720 dev_warn(dev, "fan%u low limit %u below minimum %u, set to "
721 "minimum\n", nr + 1, val, fan_from_reg(254, 128));
723 /* Speed above this value cannot possibly be represented,
724 even with the lowest divider (1) */
725 data->fan_min[nr] = 1;
726 new_div = 0; /* 1 == (1 << 0) */
727 dev_warn(dev, "fan%u low limit %u above maximum %u, set to "
728 "maximum\n", nr + 1, val, fan_from_reg(1, 1));
730 /* Automatically pick the best divider, i.e. the one such
731 that the min limit will correspond to a register value
732 in the 96..192 range */
734 while (reg > 192 && new_div < 7) {
738 data->fan_min[nr] = reg;
741 /* Write both the fan clock divider (if it changed) and the new
742 fan min (unconditionally) */
743 if (new_div != data->fan_div[nr]) {
744 /* Preserve the fan speed reading */
745 if (data->fan[nr] != 0xff) {
746 if (new_div > data->fan_div[nr])
747 data->fan[nr] >>= new_div - data->fan_div[nr];
748 else if (data->fan[nr] & 0x80)
749 data->fan[nr] = 0xff;
751 data->fan[nr] <<= data->fan_div[nr] - new_div;
754 dev_dbg(dev, "fan%u clock divider changed from %u to %u\n",
755 nr + 1, div_from_reg(data->fan_div[nr]),
756 div_from_reg(new_div));
757 data->fan_div[nr] = new_div;
758 w83627ehf_write_fan_div(data, nr);
759 /* Give the chip time to sample a new speed value */
760 data->last_updated = jiffies;
762 w83627ehf_write_value(data, W83627EHF_REG_FAN_MIN[nr],
764 mutex_unlock(&data->update_lock);
769 static struct sensor_device_attribute sda_fan_input[] = {
770 SENSOR_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0),
771 SENSOR_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1),
772 SENSOR_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2),
773 SENSOR_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3),
774 SENSOR_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 4),
777 static struct sensor_device_attribute sda_fan_alarm[] = {
778 SENSOR_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 6),
779 SENSOR_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 7),
780 SENSOR_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 11),
781 SENSOR_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 10),
782 SENSOR_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 23),
785 static struct sensor_device_attribute sda_fan_min[] = {
786 SENSOR_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min,
788 SENSOR_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min,
790 SENSOR_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min,
792 SENSOR_ATTR(fan4_min, S_IWUSR | S_IRUGO, show_fan_min,
794 SENSOR_ATTR(fan5_min, S_IWUSR | S_IRUGO, show_fan_min,
798 static struct sensor_device_attribute sda_fan_div[] = {
799 SENSOR_ATTR(fan1_div, S_IRUGO, show_fan_div, NULL, 0),
800 SENSOR_ATTR(fan2_div, S_IRUGO, show_fan_div, NULL, 1),
801 SENSOR_ATTR(fan3_div, S_IRUGO, show_fan_div, NULL, 2),
802 SENSOR_ATTR(fan4_div, S_IRUGO, show_fan_div, NULL, 3),
803 SENSOR_ATTR(fan5_div, S_IRUGO, show_fan_div, NULL, 4),
806 #define show_temp1_reg(reg) \
808 show_##reg(struct device *dev, struct device_attribute *attr, \
811 struct w83627ehf_data *data = w83627ehf_update_device(dev); \
812 return sprintf(buf, "%d\n", temp1_from_reg(data->reg)); \
814 show_temp1_reg(temp1);
815 show_temp1_reg(temp1_max);
816 show_temp1_reg(temp1_max_hyst);
818 #define store_temp1_reg(REG, reg) \
820 store_temp1_##reg(struct device *dev, struct device_attribute *attr, \
821 const char *buf, size_t count) \
823 struct w83627ehf_data *data = dev_get_drvdata(dev); \
824 long val = simple_strtol(buf, NULL, 10); \
826 mutex_lock(&data->update_lock); \
827 data->temp1_##reg = temp1_to_reg(val, -128000, 127000); \
828 w83627ehf_write_value(data, W83627EHF_REG_TEMP1_##REG, \
829 data->temp1_##reg); \
830 mutex_unlock(&data->update_lock); \
833 store_temp1_reg(OVER, max);
834 store_temp1_reg(HYST, max_hyst);
836 #define show_temp_reg(reg) \
838 show_##reg(struct device *dev, struct device_attribute *attr, \
841 struct w83627ehf_data *data = w83627ehf_update_device(dev); \
842 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
843 int nr = sensor_attr->index; \
844 return sprintf(buf, "%d\n", \
845 LM75_TEMP_FROM_REG(data->reg[nr])); \
848 show_temp_reg(temp_max);
849 show_temp_reg(temp_max_hyst);
851 #define store_temp_reg(REG, reg) \
853 store_##reg(struct device *dev, struct device_attribute *attr, \
854 const char *buf, size_t count) \
856 struct w83627ehf_data *data = dev_get_drvdata(dev); \
857 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
858 int nr = sensor_attr->index; \
859 long val = simple_strtol(buf, NULL, 10); \
861 mutex_lock(&data->update_lock); \
862 data->reg[nr] = LM75_TEMP_TO_REG(val); \
863 w83627ehf_write_value(data, W83627EHF_REG_TEMP_##REG[nr], \
865 mutex_unlock(&data->update_lock); \
868 store_temp_reg(OVER, temp_max);
869 store_temp_reg(HYST, temp_max_hyst);
872 show_temp_type(struct device *dev, struct device_attribute *attr, char *buf)
874 struct w83627ehf_data *data = w83627ehf_update_device(dev);
875 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
876 int nr = sensor_attr->index;
877 return sprintf(buf, "%d\n", (int)data->temp_type[nr]);
880 static struct sensor_device_attribute sda_temp_input[] = {
881 SENSOR_ATTR(temp1_input, S_IRUGO, show_temp1, NULL, 0),
882 SENSOR_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 0),
883 SENSOR_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 1),
886 static struct sensor_device_attribute sda_temp_max[] = {
887 SENSOR_ATTR(temp1_max, S_IRUGO | S_IWUSR, show_temp1_max,
889 SENSOR_ATTR(temp2_max, S_IRUGO | S_IWUSR, show_temp_max,
891 SENSOR_ATTR(temp3_max, S_IRUGO | S_IWUSR, show_temp_max,
895 static struct sensor_device_attribute sda_temp_max_hyst[] = {
896 SENSOR_ATTR(temp1_max_hyst, S_IRUGO | S_IWUSR, show_temp1_max_hyst,
897 store_temp1_max_hyst, 0),
898 SENSOR_ATTR(temp2_max_hyst, S_IRUGO | S_IWUSR, show_temp_max_hyst,
899 store_temp_max_hyst, 0),
900 SENSOR_ATTR(temp3_max_hyst, S_IRUGO | S_IWUSR, show_temp_max_hyst,
901 store_temp_max_hyst, 1),
904 static struct sensor_device_attribute sda_temp_alarm[] = {
905 SENSOR_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4),
906 SENSOR_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5),
907 SENSOR_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 13),
910 static struct sensor_device_attribute sda_temp_type[] = {
911 SENSOR_ATTR(temp1_type, S_IRUGO, show_temp_type, NULL, 0),
912 SENSOR_ATTR(temp2_type, S_IRUGO, show_temp_type, NULL, 1),
913 SENSOR_ATTR(temp3_type, S_IRUGO, show_temp_type, NULL, 2),
916 #define show_pwm_reg(reg) \
917 static ssize_t show_##reg (struct device *dev, struct device_attribute *attr, \
920 struct w83627ehf_data *data = w83627ehf_update_device(dev); \
921 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
922 int nr = sensor_attr->index; \
923 return sprintf(buf, "%d\n", data->reg[nr]); \
926 show_pwm_reg(pwm_mode)
927 show_pwm_reg(pwm_enable)
931 store_pwm_mode(struct device *dev, struct device_attribute *attr,
932 const char *buf, size_t count)
934 struct w83627ehf_data *data = dev_get_drvdata(dev);
935 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
936 int nr = sensor_attr->index;
937 u32 val = simple_strtoul(buf, NULL, 10);
942 mutex_lock(&data->update_lock);
943 reg = w83627ehf_read_value(data, W83627EHF_REG_PWM_ENABLE[nr]);
944 data->pwm_mode[nr] = val;
945 reg &= ~(1 << W83627EHF_PWM_MODE_SHIFT[nr]);
947 reg |= 1 << W83627EHF_PWM_MODE_SHIFT[nr];
948 w83627ehf_write_value(data, W83627EHF_REG_PWM_ENABLE[nr], reg);
949 mutex_unlock(&data->update_lock);
954 store_pwm(struct device *dev, struct device_attribute *attr,
955 const char *buf, size_t count)
957 struct w83627ehf_data *data = dev_get_drvdata(dev);
958 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
959 int nr = sensor_attr->index;
960 u32 val = SENSORS_LIMIT(simple_strtoul(buf, NULL, 10), 0, 255);
962 mutex_lock(&data->update_lock);
964 w83627ehf_write_value(data, W83627EHF_REG_PWM[nr], val);
965 mutex_unlock(&data->update_lock);
970 store_pwm_enable(struct device *dev, struct device_attribute *attr,
971 const char *buf, size_t count)
973 struct w83627ehf_data *data = dev_get_drvdata(dev);
974 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
975 int nr = sensor_attr->index;
976 u32 val = simple_strtoul(buf, NULL, 10);
979 if (!val || (val > 2)) /* only modes 1 and 2 are supported */
981 mutex_lock(&data->update_lock);
982 reg = w83627ehf_read_value(data, W83627EHF_REG_PWM_ENABLE[nr]);
983 data->pwm_enable[nr] = val;
984 reg &= ~(0x03 << W83627EHF_PWM_ENABLE_SHIFT[nr]);
985 reg |= (val - 1) << W83627EHF_PWM_ENABLE_SHIFT[nr];
986 w83627ehf_write_value(data, W83627EHF_REG_PWM_ENABLE[nr], reg);
987 mutex_unlock(&data->update_lock);
992 #define show_tol_temp(reg) \
993 static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
996 struct w83627ehf_data *data = w83627ehf_update_device(dev); \
997 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
998 int nr = sensor_attr->index; \
999 return sprintf(buf, "%d\n", temp1_from_reg(data->reg[nr])); \
1002 show_tol_temp(tolerance)
1003 show_tol_temp(target_temp)
1006 store_target_temp(struct device *dev, struct device_attribute *attr,
1007 const char *buf, size_t count)
1009 struct w83627ehf_data *data = dev_get_drvdata(dev);
1010 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1011 int nr = sensor_attr->index;
1012 u8 val = temp1_to_reg(simple_strtoul(buf, NULL, 10), 0, 127000);
1014 mutex_lock(&data->update_lock);
1015 data->target_temp[nr] = val;
1016 w83627ehf_write_value(data, W83627EHF_REG_TARGET[nr], val);
1017 mutex_unlock(&data->update_lock);
1022 store_tolerance(struct device *dev, struct device_attribute *attr,
1023 const char *buf, size_t count)
1025 struct w83627ehf_data *data = dev_get_drvdata(dev);
1026 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1027 int nr = sensor_attr->index;
1029 /* Limit the temp to 0C - 15C */
1030 u8 val = temp1_to_reg(simple_strtoul(buf, NULL, 10), 0, 15000);
1032 mutex_lock(&data->update_lock);
1033 reg = w83627ehf_read_value(data, W83627EHF_REG_TOLERANCE[nr]);
1034 data->tolerance[nr] = val;
1036 reg = (reg & 0x0f) | (val << 4);
1038 reg = (reg & 0xf0) | val;
1039 w83627ehf_write_value(data, W83627EHF_REG_TOLERANCE[nr], reg);
1040 mutex_unlock(&data->update_lock);
1044 static struct sensor_device_attribute sda_pwm[] = {
1045 SENSOR_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0),
1046 SENSOR_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1),
1047 SENSOR_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2),
1048 SENSOR_ATTR(pwm4, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 3),
1051 static struct sensor_device_attribute sda_pwm_mode[] = {
1052 SENSOR_ATTR(pwm1_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
1054 SENSOR_ATTR(pwm2_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
1056 SENSOR_ATTR(pwm3_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
1058 SENSOR_ATTR(pwm4_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
1062 static struct sensor_device_attribute sda_pwm_enable[] = {
1063 SENSOR_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
1064 store_pwm_enable, 0),
1065 SENSOR_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
1066 store_pwm_enable, 1),
1067 SENSOR_ATTR(pwm3_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
1068 store_pwm_enable, 2),
1069 SENSOR_ATTR(pwm4_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
1070 store_pwm_enable, 3),
1073 static struct sensor_device_attribute sda_target_temp[] = {
1074 SENSOR_ATTR(pwm1_target, S_IWUSR | S_IRUGO, show_target_temp,
1075 store_target_temp, 0),
1076 SENSOR_ATTR(pwm2_target, S_IWUSR | S_IRUGO, show_target_temp,
1077 store_target_temp, 1),
1078 SENSOR_ATTR(pwm3_target, S_IWUSR | S_IRUGO, show_target_temp,
1079 store_target_temp, 2),
1080 SENSOR_ATTR(pwm4_target, S_IWUSR | S_IRUGO, show_target_temp,
1081 store_target_temp, 3),
1084 static struct sensor_device_attribute sda_tolerance[] = {
1085 SENSOR_ATTR(pwm1_tolerance, S_IWUSR | S_IRUGO, show_tolerance,
1086 store_tolerance, 0),
1087 SENSOR_ATTR(pwm2_tolerance, S_IWUSR | S_IRUGO, show_tolerance,
1088 store_tolerance, 1),
1089 SENSOR_ATTR(pwm3_tolerance, S_IWUSR | S_IRUGO, show_tolerance,
1090 store_tolerance, 2),
1091 SENSOR_ATTR(pwm4_tolerance, S_IWUSR | S_IRUGO, show_tolerance,
1092 store_tolerance, 3),
1095 /* Smart Fan registers */
1097 #define fan_functions(reg, REG) \
1098 static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
1101 struct w83627ehf_data *data = w83627ehf_update_device(dev); \
1102 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
1103 int nr = sensor_attr->index; \
1104 return sprintf(buf, "%d\n", data->reg[nr]); \
1107 store_##reg(struct device *dev, struct device_attribute *attr, \
1108 const char *buf, size_t count) \
1110 struct w83627ehf_data *data = dev_get_drvdata(dev); \
1111 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
1112 int nr = sensor_attr->index; \
1113 u32 val = SENSORS_LIMIT(simple_strtoul(buf, NULL, 10), 1, 255); \
1114 mutex_lock(&data->update_lock); \
1115 data->reg[nr] = val; \
1116 w83627ehf_write_value(data, W83627EHF_REG_##REG[nr], val); \
1117 mutex_unlock(&data->update_lock); \
1121 fan_functions(fan_min_output, FAN_MIN_OUTPUT)
1123 #define fan_time_functions(reg, REG) \
1124 static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
1127 struct w83627ehf_data *data = w83627ehf_update_device(dev); \
1128 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
1129 int nr = sensor_attr->index; \
1130 return sprintf(buf, "%d\n", \
1131 step_time_from_reg(data->reg[nr], data->pwm_mode[nr])); \
1135 store_##reg(struct device *dev, struct device_attribute *attr, \
1136 const char *buf, size_t count) \
1138 struct w83627ehf_data *data = dev_get_drvdata(dev); \
1139 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
1140 int nr = sensor_attr->index; \
1141 u8 val = step_time_to_reg(simple_strtoul(buf, NULL, 10), \
1142 data->pwm_mode[nr]); \
1143 mutex_lock(&data->update_lock); \
1144 data->reg[nr] = val; \
1145 w83627ehf_write_value(data, W83627EHF_REG_##REG[nr], val); \
1146 mutex_unlock(&data->update_lock); \
1150 fan_time_functions(fan_stop_time, FAN_STOP_TIME)
1152 static ssize_t show_name(struct device *dev, struct device_attribute *attr,
1155 struct w83627ehf_data *data = dev_get_drvdata(dev);
1157 return sprintf(buf, "%s\n", data->name);
1159 static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
1161 static struct sensor_device_attribute sda_sf3_arrays_fan4[] = {
1162 SENSOR_ATTR(pwm4_stop_time, S_IWUSR | S_IRUGO, show_fan_stop_time,
1163 store_fan_stop_time, 3),
1164 SENSOR_ATTR(pwm4_min_output, S_IWUSR | S_IRUGO, show_fan_min_output,
1165 store_fan_min_output, 3),
1168 static struct sensor_device_attribute sda_sf3_arrays[] = {
1169 SENSOR_ATTR(pwm1_stop_time, S_IWUSR | S_IRUGO, show_fan_stop_time,
1170 store_fan_stop_time, 0),
1171 SENSOR_ATTR(pwm2_stop_time, S_IWUSR | S_IRUGO, show_fan_stop_time,
1172 store_fan_stop_time, 1),
1173 SENSOR_ATTR(pwm3_stop_time, S_IWUSR | S_IRUGO, show_fan_stop_time,
1174 store_fan_stop_time, 2),
1175 SENSOR_ATTR(pwm1_min_output, S_IWUSR | S_IRUGO, show_fan_min_output,
1176 store_fan_min_output, 0),
1177 SENSOR_ATTR(pwm2_min_output, S_IWUSR | S_IRUGO, show_fan_min_output,
1178 store_fan_min_output, 1),
1179 SENSOR_ATTR(pwm3_min_output, S_IWUSR | S_IRUGO, show_fan_min_output,
1180 store_fan_min_output, 2),
1184 show_vid(struct device *dev, struct device_attribute *attr, char *buf)
1186 struct w83627ehf_data *data = dev_get_drvdata(dev);
1187 return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm));
1189 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
1192 * Driver and device management
1195 static void w83627ehf_device_remove_files(struct device *dev)
1197 /* some entries in the following arrays may not have been used in
1198 * device_create_file(), but device_remove_file() will ignore them */
1200 struct w83627ehf_data *data = dev_get_drvdata(dev);
1202 for (i = 0; i < ARRAY_SIZE(sda_sf3_arrays); i++)
1203 device_remove_file(dev, &sda_sf3_arrays[i].dev_attr);
1204 for (i = 0; i < ARRAY_SIZE(sda_sf3_arrays_fan4); i++)
1205 device_remove_file(dev, &sda_sf3_arrays_fan4[i].dev_attr);
1206 for (i = 0; i < data->in_num; i++) {
1207 if ((i == 6) && data->in6_skip)
1209 device_remove_file(dev, &sda_in_input[i].dev_attr);
1210 device_remove_file(dev, &sda_in_alarm[i].dev_attr);
1211 device_remove_file(dev, &sda_in_min[i].dev_attr);
1212 device_remove_file(dev, &sda_in_max[i].dev_attr);
1214 for (i = 0; i < 5; i++) {
1215 device_remove_file(dev, &sda_fan_input[i].dev_attr);
1216 device_remove_file(dev, &sda_fan_alarm[i].dev_attr);
1217 device_remove_file(dev, &sda_fan_div[i].dev_attr);
1218 device_remove_file(dev, &sda_fan_min[i].dev_attr);
1220 for (i = 0; i < data->pwm_num; i++) {
1221 device_remove_file(dev, &sda_pwm[i].dev_attr);
1222 device_remove_file(dev, &sda_pwm_mode[i].dev_attr);
1223 device_remove_file(dev, &sda_pwm_enable[i].dev_attr);
1224 device_remove_file(dev, &sda_target_temp[i].dev_attr);
1225 device_remove_file(dev, &sda_tolerance[i].dev_attr);
1227 for (i = 0; i < 3; i++) {
1228 if ((i == 2) && data->temp3_disable)
1230 device_remove_file(dev, &sda_temp_input[i].dev_attr);
1231 device_remove_file(dev, &sda_temp_max[i].dev_attr);
1232 device_remove_file(dev, &sda_temp_max_hyst[i].dev_attr);
1233 device_remove_file(dev, &sda_temp_alarm[i].dev_attr);
1234 device_remove_file(dev, &sda_temp_type[i].dev_attr);
1237 device_remove_file(dev, &dev_attr_name);
1238 device_remove_file(dev, &dev_attr_cpu0_vid);
1241 /* Get the monitoring functions started */
1242 static inline void __devinit w83627ehf_init_device(struct w83627ehf_data *data)
1247 /* Start monitoring is needed */
1248 tmp = w83627ehf_read_value(data, W83627EHF_REG_CONFIG);
1250 w83627ehf_write_value(data, W83627EHF_REG_CONFIG,
1253 /* Enable temp2 and temp3 if needed */
1254 for (i = 0; i < 2; i++) {
1255 tmp = w83627ehf_read_value(data,
1256 W83627EHF_REG_TEMP_CONFIG[i]);
1257 if ((i == 1) && data->temp3_disable)
1260 w83627ehf_write_value(data,
1261 W83627EHF_REG_TEMP_CONFIG[i],
1265 /* Enable VBAT monitoring if needed */
1266 tmp = w83627ehf_read_value(data, W83627EHF_REG_VBAT);
1268 w83627ehf_write_value(data, W83627EHF_REG_VBAT, tmp | 0x01);
1270 /* Get thermal sensor types */
1271 diode = w83627ehf_read_value(data, W83627EHF_REG_DIODE);
1272 for (i = 0; i < 3; i++) {
1273 if ((tmp & (0x02 << i)))
1274 data->temp_type[i] = (diode & (0x10 << i)) ? 1 : 2;
1276 data->temp_type[i] = 4; /* thermistor */
1280 static int __devinit w83627ehf_probe(struct platform_device *pdev)
1282 struct device *dev = &pdev->dev;
1283 struct w83627ehf_sio_data *sio_data = dev->platform_data;
1284 struct w83627ehf_data *data;
1285 struct resource *res;
1286 u8 fan4pin, fan5pin, en_vrm10;
1289 res = platform_get_resource(pdev, IORESOURCE_IO, 0);
1290 if (!request_region(res->start, IOREGION_LENGTH, DRVNAME)) {
1292 dev_err(dev, "Failed to request region 0x%lx-0x%lx\n",
1293 (unsigned long)res->start,
1294 (unsigned long)res->start + IOREGION_LENGTH - 1);
1298 if (!(data = kzalloc(sizeof(struct w83627ehf_data), GFP_KERNEL))) {
1303 data->addr = res->start;
1304 mutex_init(&data->lock);
1305 mutex_init(&data->update_lock);
1306 data->name = w83627ehf_device_names[sio_data->kind];
1307 platform_set_drvdata(pdev, data);
1309 /* 627EHG and 627EHF have 10 voltage inputs; 627DHG and 667HG have 9 */
1310 data->in_num = (sio_data->kind == w83627ehf) ? 10 : 9;
1311 /* 667HG has 3 pwms */
1312 data->pwm_num = (sio_data->kind == w83667hg) ? 3 : 4;
1314 /* Check temp3 configuration bit for 667HG */
1315 if (sio_data->kind == w83667hg) {
1316 data->temp3_disable = w83627ehf_read_value(data,
1317 W83627EHF_REG_TEMP_CONFIG[1]) & 0x01;
1318 data->in6_skip = !data->temp3_disable;
1321 /* Initialize the chip */
1322 w83627ehf_init_device(data);
1324 data->vrm = vid_which_vrm();
1325 superio_enter(sio_data->sioreg);
1326 /* Read VID value */
1327 if (sio_data->kind == w83667hg) {
1328 /* W83667HG has different pins for VID input and output, so
1329 we can get the VID input values directly at logical device D
1331 superio_select(sio_data->sioreg, W83667HG_LD_VID);
1332 data->vid = superio_inb(sio_data->sioreg, 0xe3);
1333 err = device_create_file(dev, &dev_attr_cpu0_vid);
1337 superio_select(sio_data->sioreg, W83627EHF_LD_HWM);
1338 if (superio_inb(sio_data->sioreg, SIO_REG_VID_CTRL) & 0x80) {
1339 /* Set VID input sensibility if needed. In theory the
1340 BIOS should have set it, but in practice it's not
1341 always the case. We only do it for the W83627EHF/EHG
1342 because the W83627DHG is more complex in this
1344 if (sio_data->kind == w83627ehf) {
1345 en_vrm10 = superio_inb(sio_data->sioreg,
1347 if ((en_vrm10 & 0x08) && data->vrm == 90) {
1348 dev_warn(dev, "Setting VID input "
1349 "voltage to TTL\n");
1350 superio_outb(sio_data->sioreg,
1353 } else if (!(en_vrm10 & 0x08)
1354 && data->vrm == 100) {
1355 dev_warn(dev, "Setting VID input "
1356 "voltage to VRM10\n");
1357 superio_outb(sio_data->sioreg,
1363 data->vid = superio_inb(sio_data->sioreg,
1365 if (sio_data->kind == w83627ehf) /* 6 VID pins only */
1368 err = device_create_file(dev, &dev_attr_cpu0_vid);
1372 dev_info(dev, "VID pins in output mode, CPU VID not "
1377 /* fan4 and fan5 share some pins with the GPIO and serial flash */
1378 if (sio_data->kind == w83667hg) {
1379 fan5pin = superio_inb(sio_data->sioreg, 0x27) & 0x20;
1380 fan4pin = superio_inb(sio_data->sioreg, 0x27) & 0x40;
1382 fan5pin = !(superio_inb(sio_data->sioreg, 0x24) & 0x02);
1383 fan4pin = !(superio_inb(sio_data->sioreg, 0x29) & 0x06);
1385 superio_exit(sio_data->sioreg);
1387 /* It looks like fan4 and fan5 pins can be alternatively used
1388 as fan on/off switches, but fan5 control is write only :/
1389 We assume that if the serial interface is disabled, designers
1390 connected fan5 as input unless they are emitting log 1, which
1391 is not the default. */
1393 data->has_fan = 0x07; /* fan1, fan2 and fan3 */
1394 i = w83627ehf_read_value(data, W83627EHF_REG_FANDIV1);
1395 if ((i & (1 << 2)) && fan4pin)
1396 data->has_fan |= (1 << 3);
1397 if (!(i & (1 << 1)) && fan5pin)
1398 data->has_fan |= (1 << 4);
1400 /* Read fan clock dividers immediately */
1401 w83627ehf_update_fan_div(data);
1403 /* Register sysfs hooks */
1404 for (i = 0; i < ARRAY_SIZE(sda_sf3_arrays); i++)
1405 if ((err = device_create_file(dev,
1406 &sda_sf3_arrays[i].dev_attr)))
1409 /* if fan4 is enabled create the sf3 files for it */
1410 if ((data->has_fan & (1 << 3)) && data->pwm_num >= 4)
1411 for (i = 0; i < ARRAY_SIZE(sda_sf3_arrays_fan4); i++) {
1412 if ((err = device_create_file(dev,
1413 &sda_sf3_arrays_fan4[i].dev_attr)))
1417 for (i = 0; i < data->in_num; i++) {
1418 if ((i == 6) && data->in6_skip)
1420 if ((err = device_create_file(dev, &sda_in_input[i].dev_attr))
1421 || (err = device_create_file(dev,
1422 &sda_in_alarm[i].dev_attr))
1423 || (err = device_create_file(dev,
1424 &sda_in_min[i].dev_attr))
1425 || (err = device_create_file(dev,
1426 &sda_in_max[i].dev_attr)))
1430 for (i = 0; i < 5; i++) {
1431 if (data->has_fan & (1 << i)) {
1432 if ((err = device_create_file(dev,
1433 &sda_fan_input[i].dev_attr))
1434 || (err = device_create_file(dev,
1435 &sda_fan_alarm[i].dev_attr))
1436 || (err = device_create_file(dev,
1437 &sda_fan_div[i].dev_attr))
1438 || (err = device_create_file(dev,
1439 &sda_fan_min[i].dev_attr)))
1441 if (i < data->pwm_num &&
1442 ((err = device_create_file(dev,
1443 &sda_pwm[i].dev_attr))
1444 || (err = device_create_file(dev,
1445 &sda_pwm_mode[i].dev_attr))
1446 || (err = device_create_file(dev,
1447 &sda_pwm_enable[i].dev_attr))
1448 || (err = device_create_file(dev,
1449 &sda_target_temp[i].dev_attr))
1450 || (err = device_create_file(dev,
1451 &sda_tolerance[i].dev_attr))))
1456 for (i = 0; i < 3; i++) {
1457 if ((i == 2) && data->temp3_disable)
1459 if ((err = device_create_file(dev,
1460 &sda_temp_input[i].dev_attr))
1461 || (err = device_create_file(dev,
1462 &sda_temp_max[i].dev_attr))
1463 || (err = device_create_file(dev,
1464 &sda_temp_max_hyst[i].dev_attr))
1465 || (err = device_create_file(dev,
1466 &sda_temp_alarm[i].dev_attr))
1467 || (err = device_create_file(dev,
1468 &sda_temp_type[i].dev_attr)))
1472 err = device_create_file(dev, &dev_attr_name);
1476 data->hwmon_dev = hwmon_device_register(dev);
1477 if (IS_ERR(data->hwmon_dev)) {
1478 err = PTR_ERR(data->hwmon_dev);
1485 w83627ehf_device_remove_files(dev);
1487 platform_set_drvdata(pdev, NULL);
1489 release_region(res->start, IOREGION_LENGTH);
1494 static int __devexit w83627ehf_remove(struct platform_device *pdev)
1496 struct w83627ehf_data *data = platform_get_drvdata(pdev);
1498 hwmon_device_unregister(data->hwmon_dev);
1499 w83627ehf_device_remove_files(&pdev->dev);
1500 release_region(data->addr, IOREGION_LENGTH);
1501 platform_set_drvdata(pdev, NULL);
1507 static struct platform_driver w83627ehf_driver = {
1509 .owner = THIS_MODULE,
1512 .probe = w83627ehf_probe,
1513 .remove = __devexit_p(w83627ehf_remove),
1516 /* w83627ehf_find() looks for a '627 in the Super-I/O config space */
1517 static int __init w83627ehf_find(int sioaddr, unsigned short *addr,
1518 struct w83627ehf_sio_data *sio_data)
1520 static const char __initdata sio_name_W83627EHF[] = "W83627EHF";
1521 static const char __initdata sio_name_W83627EHG[] = "W83627EHG";
1522 static const char __initdata sio_name_W83627DHG[] = "W83627DHG";
1523 static const char __initdata sio_name_W83627DHG_P[] = "W83627DHG-P";
1524 static const char __initdata sio_name_W83667HG[] = "W83667HG";
1527 const char *sio_name;
1529 superio_enter(sioaddr);
1534 val = (superio_inb(sioaddr, SIO_REG_DEVID) << 8)
1535 | superio_inb(sioaddr, SIO_REG_DEVID + 1);
1536 switch (val & SIO_ID_MASK) {
1537 case SIO_W83627EHF_ID:
1538 sio_data->kind = w83627ehf;
1539 sio_name = sio_name_W83627EHF;
1541 case SIO_W83627EHG_ID:
1542 sio_data->kind = w83627ehf;
1543 sio_name = sio_name_W83627EHG;
1545 case SIO_W83627DHG_ID:
1546 sio_data->kind = w83627dhg;
1547 sio_name = sio_name_W83627DHG;
1549 case SIO_W83627DHG_P_ID:
1550 sio_data->kind = w83627dhg_p;
1551 sio_name = sio_name_W83627DHG_P;
1553 case SIO_W83667HG_ID:
1554 sio_data->kind = w83667hg;
1555 sio_name = sio_name_W83667HG;
1559 pr_debug(DRVNAME ": unsupported chip ID: 0x%04x\n",
1561 superio_exit(sioaddr);
1565 /* We have a known chip, find the HWM I/O address */
1566 superio_select(sioaddr, W83627EHF_LD_HWM);
1567 val = (superio_inb(sioaddr, SIO_REG_ADDR) << 8)
1568 | superio_inb(sioaddr, SIO_REG_ADDR + 1);
1569 *addr = val & IOREGION_ALIGNMENT;
1571 printk(KERN_ERR DRVNAME ": Refusing to enable a Super-I/O "
1572 "device with a base I/O port 0.\n");
1573 superio_exit(sioaddr);
1577 /* Activate logical device if needed */
1578 val = superio_inb(sioaddr, SIO_REG_ENABLE);
1579 if (!(val & 0x01)) {
1580 printk(KERN_WARNING DRVNAME ": Forcibly enabling Super-I/O. "
1581 "Sensor is probably unusable.\n");
1582 superio_outb(sioaddr, SIO_REG_ENABLE, val | 0x01);
1585 superio_exit(sioaddr);
1586 pr_info(DRVNAME ": Found %s chip at %#x\n", sio_name, *addr);
1587 sio_data->sioreg = sioaddr;
1592 /* when Super-I/O functions move to a separate file, the Super-I/O
1593 * bus will manage the lifetime of the device and this module will only keep
1594 * track of the w83627ehf driver. But since we platform_device_alloc(), we
1595 * must keep track of the device */
1596 static struct platform_device *pdev;
1598 static int __init sensors_w83627ehf_init(void)
1601 unsigned short address;
1602 struct resource res;
1603 struct w83627ehf_sio_data sio_data;
1605 /* initialize sio_data->kind and sio_data->sioreg.
1607 * when Super-I/O functions move to a separate file, the Super-I/O
1608 * driver will probe 0x2e and 0x4e and auto-detect the presence of a
1609 * w83627ehf hardware monitor, and call probe() */
1610 if (w83627ehf_find(0x2e, &address, &sio_data) &&
1611 w83627ehf_find(0x4e, &address, &sio_data))
1614 err = platform_driver_register(&w83627ehf_driver);
1618 if (!(pdev = platform_device_alloc(DRVNAME, address))) {
1620 printk(KERN_ERR DRVNAME ": Device allocation failed\n");
1621 goto exit_unregister;
1624 err = platform_device_add_data(pdev, &sio_data,
1625 sizeof(struct w83627ehf_sio_data));
1627 printk(KERN_ERR DRVNAME ": Platform data allocation failed\n");
1628 goto exit_device_put;
1631 memset(&res, 0, sizeof(res));
1633 res.start = address + IOREGION_OFFSET;
1634 res.end = address + IOREGION_OFFSET + IOREGION_LENGTH - 1;
1635 res.flags = IORESOURCE_IO;
1637 err = acpi_check_resource_conflict(&res);
1639 goto exit_device_put;
1641 err = platform_device_add_resources(pdev, &res, 1);
1643 printk(KERN_ERR DRVNAME ": Device resource addition failed "
1645 goto exit_device_put;
1648 /* platform_device_add calls probe() */
1649 err = platform_device_add(pdev);
1651 printk(KERN_ERR DRVNAME ": Device addition failed (%d)\n",
1653 goto exit_device_put;
1659 platform_device_put(pdev);
1661 platform_driver_unregister(&w83627ehf_driver);
1666 static void __exit sensors_w83627ehf_exit(void)
1668 platform_device_unregister(pdev);
1669 platform_driver_unregister(&w83627ehf_driver);
1672 MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
1673 MODULE_DESCRIPTION("W83627EHF driver");
1674 MODULE_LICENSE("GPL");
1676 module_init(sensors_w83627ehf_init);
1677 module_exit(sensors_w83627ehf_exit);