1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * pc87360.c - Part of lm_sensors, Linux kernel modules
4 * for hardware monitoring
5 * Copyright (C) 2004, 2007 Jean Delvare <jdelvare@suse.de>
7 * Copied from smsc47m1.c:
8 * Copyright (C) 2002 Mark D. Studebaker <mdsxyz123@yahoo.com>
10 * Supports the following chips:
12 * Chip #vin #fan #pwm #temp devid
13 * PC87360 - 2 2 - 0xE1
14 * PC87363 - 2 2 - 0xE8
15 * PC87364 - 3 3 - 0xE4
16 * PC87365 11 3 3 2 0xE5
17 * PC87366 11 3 3 3-4 0xE9
19 * This driver assumes that no more than one chip is present, and one of
20 * the standard Super-I/O addresses is used (0x2E/0x2F or 0x4E/0x4F).
23 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
25 #include <linux/module.h>
26 #include <linux/init.h>
27 #include <linux/slab.h>
28 #include <linux/jiffies.h>
29 #include <linux/platform_device.h>
30 #include <linux/hwmon.h>
31 #include <linux/hwmon-sysfs.h>
32 #include <linux/hwmon-vid.h>
33 #include <linux/err.h>
34 #include <linux/mutex.h>
35 #include <linux/acpi.h>
38 #define DRIVER_NAME "pc87360"
40 /* (temp & vin) channel conversion status register flags (pdf sec.11.5.12) */
41 #define CHAN_CNVRTD 0x80 /* new data ready */
42 #define CHAN_ENA 0x01 /* enabled channel (temp or vin) */
43 #define CHAN_ALM_ENA 0x10 /* propagate to alarms-reg ?? (chk val!) */
44 #define CHAN_READY (CHAN_ENA|CHAN_CNVRTD) /* sample ready mask */
46 #define TEMP_OTS_OE 0x20 /* OTS Output Enable */
47 #define VIN_RW1C_MASK (CHAN_READY|CHAN_ALM_MAX|CHAN_ALM_MIN) /* 0x87 */
48 #define TEMP_RW1C_MASK (VIN_RW1C_MASK|TEMP_ALM_CRIT|TEMP_FAULT) /* 0xCF */
51 static struct platform_device
*pdev
;
52 static unsigned short extra_isa
[3];
56 module_param(init
, int, 0);
57 MODULE_PARM_DESC(init
,
58 "Chip initialization level:\n"
60 "*1: Forcibly enable internal voltage and temperature channels, except in9\n"
61 " 2: Forcibly enable all voltage and temperature channels, except in9\n"
62 " 3: Forcibly enable all voltage and temperature channels, including in9");
64 static unsigned short force_id
;
65 module_param(force_id
, ushort
, 0);
66 MODULE_PARM_DESC(force_id
, "Override the detected device ID");
69 * Super-I/O registers and operations
72 #define DEV 0x07 /* Register: Logical device select */
73 #define DEVID 0x20 /* Register: Device ID */
74 #define ACT 0x30 /* Register: Device activation */
75 #define BASE 0x60 /* Register: Base address */
77 #define FSCM 0x09 /* Logical device: fans */
78 #define VLM 0x0d /* Logical device: voltages */
79 #define TMS 0x0e /* Logical device: temperatures */
81 static const u8 logdev
[LDNI_MAX
] = { FSCM
, VLM
, TMS
};
87 static inline void superio_outb(int sioaddr
, int reg
, int val
)
90 outb(val
, sioaddr
+ 1);
93 static inline int superio_inb(int sioaddr
, int reg
)
96 return inb(sioaddr
+ 1);
99 static inline void superio_exit(int sioaddr
)
102 outb(0x02, sioaddr
+ 1);
109 #define PC87360_EXTENT 0x10
110 #define PC87365_REG_BANK 0x09
114 * Fan registers and conversions
117 /* nr has to be 0 or 1 (PC87360/87363) or 2 (PC87364/87365/87366) */
118 #define PC87360_REG_PRESCALE(nr) (0x00 + 2 * (nr))
119 #define PC87360_REG_PWM(nr) (0x01 + 2 * (nr))
120 #define PC87360_REG_FAN_MIN(nr) (0x06 + 3 * (nr))
121 #define PC87360_REG_FAN(nr) (0x07 + 3 * (nr))
122 #define PC87360_REG_FAN_STATUS(nr) (0x08 + 3 * (nr))
124 #define FAN_FROM_REG(val, div) ((val) == 0 ? 0 : \
125 480000 / ((val) * (div)))
126 #define FAN_TO_REG(val, div) ((val) <= 100 ? 0 : \
127 480000 / ((val) * (div)))
128 #define FAN_DIV_FROM_REG(val) (1 << (((val) >> 5) & 0x03))
129 #define FAN_STATUS_FROM_REG(val) ((val) & 0x07)
131 #define FAN_CONFIG_MONITOR(val, nr) (((val) >> (2 + (nr) * 3)) & 1)
132 #define FAN_CONFIG_CONTROL(val, nr) (((val) >> (3 + (nr) * 3)) & 1)
133 #define FAN_CONFIG_INVERT(val, nr) (((val) >> (4 + (nr) * 3)) & 1)
135 #define PWM_FROM_REG(val, inv) ((inv) ? 255 - (val) : (val))
136 static inline u8
PWM_TO_REG(int val
, int inv
)
148 * Voltage registers and conversions
151 #define PC87365_REG_IN_CONVRATE 0x07
152 #define PC87365_REG_IN_CONFIG 0x08
153 #define PC87365_REG_IN 0x0B
154 #define PC87365_REG_IN_MIN 0x0D
155 #define PC87365_REG_IN_MAX 0x0C
156 #define PC87365_REG_IN_STATUS 0x0A
157 #define PC87365_REG_IN_ALARMS1 0x00
158 #define PC87365_REG_IN_ALARMS2 0x01
159 #define PC87365_REG_VID 0x06
161 #define IN_FROM_REG(val, ref) (((val) * (ref) + 128) / 256)
162 #define IN_TO_REG(val, ref) ((val) < 0 ? 0 : \
163 (val) * 256 >= (ref) * 255 ? 255 : \
164 ((val) * 256 + (ref) / 2) / (ref))
167 * Temperature registers and conversions
170 #define PC87365_REG_TEMP_CONFIG 0x08
171 #define PC87365_REG_TEMP 0x0B
172 #define PC87365_REG_TEMP_MIN 0x0D
173 #define PC87365_REG_TEMP_MAX 0x0C
174 #define PC87365_REG_TEMP_CRIT 0x0E
175 #define PC87365_REG_TEMP_STATUS 0x0A
176 #define PC87365_REG_TEMP_ALARMS 0x00
178 #define TEMP_FROM_REG(val) ((val) * 1000)
179 #define TEMP_TO_REG(val) ((val) < -55000 ? -55 : \
180 (val) > 127000 ? 127 : \
181 (val) < 0 ? ((val) - 500) / 1000 : \
182 ((val) + 500) / 1000)
188 struct pc87360_data
{
190 struct device
*hwmon_dev
;
192 struct mutex update_lock
;
193 bool valid
; /* true if following fields are valid */
194 unsigned long last_updated
; /* In jiffies */
198 u8 fannr
, innr
, tempnr
;
200 u8 fan
[3]; /* Register value */
201 u8 fan_min
[3]; /* Register value */
202 u8 fan_status
[3]; /* Register value */
203 u8 pwm
[3]; /* Register value */
204 u16 fan_conf
; /* Configuration register values, combined */
206 u16 in_vref
; /* 1 mV/bit */
207 u8 in
[14]; /* Register value */
208 u8 in_min
[14]; /* Register value */
209 u8 in_max
[14]; /* Register value */
210 u8 in_crit
[3]; /* Register value */
211 u8 in_status
[14]; /* Register value */
212 u16 in_alarms
; /* Register values, combined, masked */
213 u8 vid_conf
; /* Configuration register value */
215 u8 vid
; /* Register value */
217 s8 temp
[3]; /* Register value */
218 s8 temp_min
[3]; /* Register value */
219 s8 temp_max
[3]; /* Register value */
220 s8 temp_crit
[3]; /* Register value */
221 u8 temp_status
[3]; /* Register value */
222 u8 temp_alarms
; /* Register value, masked */
226 * ldi is the logical device index
227 * bank is for voltages and temperatures only
229 static int pc87360_read_value(struct pc87360_data
*data
, u8 ldi
, u8 bank
,
234 mutex_lock(&(data
->lock
));
236 outb_p(bank
, data
->address
[ldi
] + PC87365_REG_BANK
);
237 res
= inb_p(data
->address
[ldi
] + reg
);
238 mutex_unlock(&(data
->lock
));
243 static void pc87360_write_value(struct pc87360_data
*data
, u8 ldi
, u8 bank
,
246 mutex_lock(&(data
->lock
));
248 outb_p(bank
, data
->address
[ldi
] + PC87365_REG_BANK
);
249 outb_p(value
, data
->address
[ldi
] + reg
);
250 mutex_unlock(&(data
->lock
));
253 static void pc87360_autodiv(struct device
*dev
, int nr
)
255 struct pc87360_data
*data
= dev_get_drvdata(dev
);
256 u8 old_min
= data
->fan_min
[nr
];
258 /* Increase clock divider if needed and possible */
259 if ((data
->fan_status
[nr
] & 0x04) /* overflow flag */
260 || (data
->fan
[nr
] >= 224)) { /* next to overflow */
261 if ((data
->fan_status
[nr
] & 0x60) != 0x60) {
262 data
->fan_status
[nr
] += 0x20;
263 data
->fan_min
[nr
] >>= 1;
266 "Increasing clock divider to %d for fan %d\n",
267 FAN_DIV_FROM_REG(data
->fan_status
[nr
]), nr
+ 1);
270 /* Decrease clock divider if possible */
271 while (!(data
->fan_min
[nr
] & 0x80) /* min "nails" divider */
272 && data
->fan
[nr
] < 85 /* bad accuracy */
273 && (data
->fan_status
[nr
] & 0x60) != 0x00) {
274 data
->fan_status
[nr
] -= 0x20;
275 data
->fan_min
[nr
] <<= 1;
278 "Decreasing clock divider to %d for fan %d\n",
279 FAN_DIV_FROM_REG(data
->fan_status
[nr
]),
284 /* Write new fan min if it changed */
285 if (old_min
!= data
->fan_min
[nr
]) {
286 pc87360_write_value(data
, LD_FAN
, NO_BANK
,
287 PC87360_REG_FAN_MIN(nr
),
292 static struct pc87360_data
*pc87360_update_device(struct device
*dev
)
294 struct pc87360_data
*data
= dev_get_drvdata(dev
);
297 mutex_lock(&data
->update_lock
);
299 if (time_after(jiffies
, data
->last_updated
+ HZ
* 2) || !data
->valid
) {
300 dev_dbg(dev
, "Data update\n");
303 for (i
= 0; i
< data
->fannr
; i
++) {
304 if (FAN_CONFIG_MONITOR(data
->fan_conf
, i
)) {
305 data
->fan_status
[i
] =
306 pc87360_read_value(data
, LD_FAN
,
307 NO_BANK
, PC87360_REG_FAN_STATUS(i
));
308 data
->fan
[i
] = pc87360_read_value(data
, LD_FAN
,
309 NO_BANK
, PC87360_REG_FAN(i
));
310 data
->fan_min
[i
] = pc87360_read_value(data
,
312 PC87360_REG_FAN_MIN(i
));
313 /* Change clock divider if needed */
314 pc87360_autodiv(dev
, i
);
315 /* Clear bits and write new divider */
316 pc87360_write_value(data
, LD_FAN
, NO_BANK
,
317 PC87360_REG_FAN_STATUS(i
),
318 data
->fan_status
[i
]);
320 if (FAN_CONFIG_CONTROL(data
->fan_conf
, i
))
321 data
->pwm
[i
] = pc87360_read_value(data
, LD_FAN
,
322 NO_BANK
, PC87360_REG_PWM(i
));
326 for (i
= 0; i
< data
->innr
; i
++) {
327 data
->in_status
[i
] = pc87360_read_value(data
, LD_IN
, i
,
328 PC87365_REG_IN_STATUS
);
330 pc87360_write_value(data
, LD_IN
, i
,
331 PC87365_REG_IN_STATUS
,
333 if ((data
->in_status
[i
] & CHAN_READY
) == CHAN_READY
) {
334 data
->in
[i
] = pc87360_read_value(data
, LD_IN
,
337 if (data
->in_status
[i
] & CHAN_ENA
) {
338 data
->in_min
[i
] = pc87360_read_value(data
,
341 data
->in_max
[i
] = pc87360_read_value(data
,
345 data
->in_crit
[i
-11] =
346 pc87360_read_value(data
, LD_IN
,
347 i
, PC87365_REG_TEMP_CRIT
);
351 data
->in_alarms
= pc87360_read_value(data
, LD_IN
,
352 NO_BANK
, PC87365_REG_IN_ALARMS1
)
353 | ((pc87360_read_value(data
, LD_IN
,
354 NO_BANK
, PC87365_REG_IN_ALARMS2
)
356 data
->vid
= (data
->vid_conf
& 0xE0) ?
357 pc87360_read_value(data
, LD_IN
,
358 NO_BANK
, PC87365_REG_VID
) : 0x1F;
362 for (i
= 0; i
< data
->tempnr
; i
++) {
363 data
->temp_status
[i
] = pc87360_read_value(data
,
365 PC87365_REG_TEMP_STATUS
);
367 pc87360_write_value(data
, LD_TEMP
, i
,
368 PC87365_REG_TEMP_STATUS
,
369 data
->temp_status
[i
]);
370 if ((data
->temp_status
[i
] & CHAN_READY
) == CHAN_READY
) {
371 data
->temp
[i
] = pc87360_read_value(data
,
375 if (data
->temp_status
[i
] & CHAN_ENA
) {
376 data
->temp_min
[i
] = pc87360_read_value(data
,
378 PC87365_REG_TEMP_MIN
);
379 data
->temp_max
[i
] = pc87360_read_value(data
,
381 PC87365_REG_TEMP_MAX
);
382 data
->temp_crit
[i
] = pc87360_read_value(data
,
384 PC87365_REG_TEMP_CRIT
);
388 data
->temp_alarms
= pc87360_read_value(data
, LD_TEMP
,
389 NO_BANK
, PC87365_REG_TEMP_ALARMS
)
393 data
->last_updated
= jiffies
;
397 mutex_unlock(&data
->update_lock
);
402 static ssize_t
in_input_show(struct device
*dev
,
403 struct device_attribute
*devattr
, char *buf
)
405 struct sensor_device_attribute
*attr
= to_sensor_dev_attr(devattr
);
406 struct pc87360_data
*data
= pc87360_update_device(dev
);
407 return sprintf(buf
, "%u\n", IN_FROM_REG(data
->in
[attr
->index
],
411 static struct sensor_device_attribute in_input
[] = {
412 SENSOR_ATTR_RO(in0_input
, in_input
, 0),
413 SENSOR_ATTR_RO(in1_input
, in_input
, 1),
414 SENSOR_ATTR_RO(in2_input
, in_input
, 2),
415 SENSOR_ATTR_RO(in3_input
, in_input
, 3),
416 SENSOR_ATTR_RO(in4_input
, in_input
, 4),
417 SENSOR_ATTR_RO(in5_input
, in_input
, 5),
418 SENSOR_ATTR_RO(in6_input
, in_input
, 6),
419 SENSOR_ATTR_RO(in7_input
, in_input
, 7),
420 SENSOR_ATTR_RO(in8_input
, in_input
, 8),
421 SENSOR_ATTR_RO(in9_input
, in_input
, 9),
422 SENSOR_ATTR_RO(in10_input
, in_input
, 10),
425 static ssize_t
in_status_show(struct device
*dev
,
426 struct device_attribute
*devattr
, char *buf
)
428 struct sensor_device_attribute
*attr
= to_sensor_dev_attr(devattr
);
429 struct pc87360_data
*data
= pc87360_update_device(dev
);
430 return sprintf(buf
, "%u\n", data
->in_status
[attr
->index
]);
433 static struct sensor_device_attribute in_status
[] = {
434 SENSOR_ATTR_RO(in0_status
, in_status
, 0),
435 SENSOR_ATTR_RO(in1_status
, in_status
, 1),
436 SENSOR_ATTR_RO(in2_status
, in_status
, 2),
437 SENSOR_ATTR_RO(in3_status
, in_status
, 3),
438 SENSOR_ATTR_RO(in4_status
, in_status
, 4),
439 SENSOR_ATTR_RO(in5_status
, in_status
, 5),
440 SENSOR_ATTR_RO(in6_status
, in_status
, 6),
441 SENSOR_ATTR_RO(in7_status
, in_status
, 7),
442 SENSOR_ATTR_RO(in8_status
, in_status
, 8),
443 SENSOR_ATTR_RO(in9_status
, in_status
, 9),
444 SENSOR_ATTR_RO(in10_status
, in_status
, 10),
447 static ssize_t
in_min_show(struct device
*dev
,
448 struct device_attribute
*devattr
, char *buf
)
450 struct sensor_device_attribute
*attr
= to_sensor_dev_attr(devattr
);
451 struct pc87360_data
*data
= pc87360_update_device(dev
);
452 return sprintf(buf
, "%u\n", IN_FROM_REG(data
->in_min
[attr
->index
],
456 static ssize_t
in_min_store(struct device
*dev
,
457 struct device_attribute
*devattr
, const char *buf
,
460 struct sensor_device_attribute
*attr
= to_sensor_dev_attr(devattr
);
461 struct pc87360_data
*data
= dev_get_drvdata(dev
);
465 err
= kstrtol(buf
, 10, &val
);
469 mutex_lock(&data
->update_lock
);
470 data
->in_min
[attr
->index
] = IN_TO_REG(val
, data
->in_vref
);
471 pc87360_write_value(data
, LD_IN
, attr
->index
, PC87365_REG_IN_MIN
,
472 data
->in_min
[attr
->index
]);
473 mutex_unlock(&data
->update_lock
);
477 static struct sensor_device_attribute in_min
[] = {
478 SENSOR_ATTR_RW(in0_min
, in_min
, 0),
479 SENSOR_ATTR_RW(in1_min
, in_min
, 1),
480 SENSOR_ATTR_RW(in2_min
, in_min
, 2),
481 SENSOR_ATTR_RW(in3_min
, in_min
, 3),
482 SENSOR_ATTR_RW(in4_min
, in_min
, 4),
483 SENSOR_ATTR_RW(in5_min
, in_min
, 5),
484 SENSOR_ATTR_RW(in6_min
, in_min
, 6),
485 SENSOR_ATTR_RW(in7_min
, in_min
, 7),
486 SENSOR_ATTR_RW(in8_min
, in_min
, 8),
487 SENSOR_ATTR_RW(in9_min
, in_min
, 9),
488 SENSOR_ATTR_RW(in10_min
, in_min
, 10),
491 static ssize_t
in_max_show(struct device
*dev
,
492 struct device_attribute
*devattr
, char *buf
)
494 struct sensor_device_attribute
*attr
= to_sensor_dev_attr(devattr
);
495 struct pc87360_data
*data
= pc87360_update_device(dev
);
496 return sprintf(buf
, "%u\n", IN_FROM_REG(data
->in_max
[attr
->index
],
500 static ssize_t
in_max_store(struct device
*dev
,
501 struct device_attribute
*devattr
, const char *buf
,
504 struct sensor_device_attribute
*attr
= to_sensor_dev_attr(devattr
);
505 struct pc87360_data
*data
= dev_get_drvdata(dev
);
509 err
= kstrtol(buf
, 10, &val
);
513 mutex_lock(&data
->update_lock
);
514 data
->in_max
[attr
->index
] = IN_TO_REG(val
,
516 pc87360_write_value(data
, LD_IN
, attr
->index
, PC87365_REG_IN_MAX
,
517 data
->in_max
[attr
->index
]);
518 mutex_unlock(&data
->update_lock
);
522 static struct sensor_device_attribute in_max
[] = {
523 SENSOR_ATTR_RW(in0_max
, in_max
, 0),
524 SENSOR_ATTR_RW(in1_max
, in_max
, 1),
525 SENSOR_ATTR_RW(in2_max
, in_max
, 2),
526 SENSOR_ATTR_RW(in3_max
, in_max
, 3),
527 SENSOR_ATTR_RW(in4_max
, in_max
, 4),
528 SENSOR_ATTR_RW(in5_max
, in_max
, 5),
529 SENSOR_ATTR_RW(in6_max
, in_max
, 6),
530 SENSOR_ATTR_RW(in7_max
, in_max
, 7),
531 SENSOR_ATTR_RW(in8_max
, in_max
, 8),
532 SENSOR_ATTR_RW(in9_max
, in_max
, 9),
533 SENSOR_ATTR_RW(in10_max
, in_max
, 10),
536 /* (temp & vin) channel status register alarm bits (pdf sec.11.5.12) */
537 #define CHAN_ALM_MIN 0x02 /* min limit crossed */
538 #define CHAN_ALM_MAX 0x04 /* max limit exceeded */
539 #define TEMP_ALM_CRIT 0x08 /* temp crit exceeded (temp only) */
542 * show_in_min/max_alarm() reads data from the per-channel status
543 * register (sec 11.5.12), not the vin event status registers (sec
544 * 11.5.2) that (legacy) show_in_alarm() resds (via data->in_alarms)
547 static ssize_t
in_min_alarm_show(struct device
*dev
,
548 struct device_attribute
*devattr
, char *buf
)
550 struct pc87360_data
*data
= pc87360_update_device(dev
);
551 unsigned nr
= to_sensor_dev_attr(devattr
)->index
;
553 return sprintf(buf
, "%u\n", !!(data
->in_status
[nr
] & CHAN_ALM_MIN
));
556 static struct sensor_device_attribute in_min_alarm
[] = {
557 SENSOR_ATTR_RO(in0_min_alarm
, in_min_alarm
, 0),
558 SENSOR_ATTR_RO(in1_min_alarm
, in_min_alarm
, 1),
559 SENSOR_ATTR_RO(in2_min_alarm
, in_min_alarm
, 2),
560 SENSOR_ATTR_RO(in3_min_alarm
, in_min_alarm
, 3),
561 SENSOR_ATTR_RO(in4_min_alarm
, in_min_alarm
, 4),
562 SENSOR_ATTR_RO(in5_min_alarm
, in_min_alarm
, 5),
563 SENSOR_ATTR_RO(in6_min_alarm
, in_min_alarm
, 6),
564 SENSOR_ATTR_RO(in7_min_alarm
, in_min_alarm
, 7),
565 SENSOR_ATTR_RO(in8_min_alarm
, in_min_alarm
, 8),
566 SENSOR_ATTR_RO(in9_min_alarm
, in_min_alarm
, 9),
567 SENSOR_ATTR_RO(in10_min_alarm
, in_min_alarm
, 10),
570 static ssize_t
in_max_alarm_show(struct device
*dev
,
571 struct device_attribute
*devattr
, char *buf
)
573 struct pc87360_data
*data
= pc87360_update_device(dev
);
574 unsigned nr
= to_sensor_dev_attr(devattr
)->index
;
576 return sprintf(buf
, "%u\n", !!(data
->in_status
[nr
] & CHAN_ALM_MAX
));
579 static struct sensor_device_attribute in_max_alarm
[] = {
580 SENSOR_ATTR_RO(in0_max_alarm
, in_max_alarm
, 0),
581 SENSOR_ATTR_RO(in1_max_alarm
, in_max_alarm
, 1),
582 SENSOR_ATTR_RO(in2_max_alarm
, in_max_alarm
, 2),
583 SENSOR_ATTR_RO(in3_max_alarm
, in_max_alarm
, 3),
584 SENSOR_ATTR_RO(in4_max_alarm
, in_max_alarm
, 4),
585 SENSOR_ATTR_RO(in5_max_alarm
, in_max_alarm
, 5),
586 SENSOR_ATTR_RO(in6_max_alarm
, in_max_alarm
, 6),
587 SENSOR_ATTR_RO(in7_max_alarm
, in_max_alarm
, 7),
588 SENSOR_ATTR_RO(in8_max_alarm
, in_max_alarm
, 8),
589 SENSOR_ATTR_RO(in9_max_alarm
, in_max_alarm
, 9),
590 SENSOR_ATTR_RO(in10_max_alarm
, in_max_alarm
, 10),
593 #define VIN_UNIT_ATTRS(X) \
594 &in_input[X].dev_attr.attr, \
595 &in_status[X].dev_attr.attr, \
596 &in_min[X].dev_attr.attr, \
597 &in_max[X].dev_attr.attr, \
598 &in_min_alarm[X].dev_attr.attr, \
599 &in_max_alarm[X].dev_attr.attr
601 static ssize_t
cpu0_vid_show(struct device
*dev
,
602 struct device_attribute
*attr
, char *buf
)
604 struct pc87360_data
*data
= pc87360_update_device(dev
);
605 return sprintf(buf
, "%u\n", vid_from_reg(data
->vid
, data
->vrm
));
607 static DEVICE_ATTR_RO(cpu0_vid
);
609 static ssize_t
vrm_show(struct device
*dev
, struct device_attribute
*attr
,
612 struct pc87360_data
*data
= dev_get_drvdata(dev
);
613 return sprintf(buf
, "%u\n", data
->vrm
);
616 static ssize_t
vrm_store(struct device
*dev
, struct device_attribute
*attr
,
617 const char *buf
, size_t count
)
619 struct pc87360_data
*data
= dev_get_drvdata(dev
);
623 err
= kstrtoul(buf
, 10, &val
);
633 static DEVICE_ATTR_RW(vrm
);
635 static ssize_t
alarms_in_show(struct device
*dev
,
636 struct device_attribute
*attr
, char *buf
)
638 struct pc87360_data
*data
= pc87360_update_device(dev
);
639 return sprintf(buf
, "%u\n", data
->in_alarms
);
641 static DEVICE_ATTR_RO(alarms_in
);
643 static struct attribute
*pc8736x_vin_attr_array
[] = {
655 &dev_attr_cpu0_vid
.attr
,
657 &dev_attr_alarms_in
.attr
,
660 static const struct attribute_group pc8736x_vin_group
= {
661 .attrs
= pc8736x_vin_attr_array
,
664 static ssize_t
therm_input_show(struct device
*dev
,
665 struct device_attribute
*devattr
, char *buf
)
667 struct sensor_device_attribute
*attr
= to_sensor_dev_attr(devattr
);
668 struct pc87360_data
*data
= pc87360_update_device(dev
);
669 return sprintf(buf
, "%u\n", IN_FROM_REG(data
->in
[attr
->index
],
674 * the +11 term below reflects the fact that VLM units 11,12,13 are
675 * used in the chip to measure voltage across the thermistors
677 static struct sensor_device_attribute therm_input
[] = {
678 SENSOR_ATTR_RO(temp4_input
, therm_input
, 0 + 11),
679 SENSOR_ATTR_RO(temp5_input
, therm_input
, 1 + 11),
680 SENSOR_ATTR_RO(temp6_input
, therm_input
, 2 + 11),
683 static ssize_t
therm_status_show(struct device
*dev
,
684 struct device_attribute
*devattr
, char *buf
)
686 struct sensor_device_attribute
*attr
= to_sensor_dev_attr(devattr
);
687 struct pc87360_data
*data
= pc87360_update_device(dev
);
688 return sprintf(buf
, "%u\n", data
->in_status
[attr
->index
]);
691 static struct sensor_device_attribute therm_status
[] = {
692 SENSOR_ATTR_RO(temp4_status
, therm_status
, 0 + 11),
693 SENSOR_ATTR_RO(temp5_status
, therm_status
, 1 + 11),
694 SENSOR_ATTR_RO(temp6_status
, therm_status
, 2 + 11),
697 static ssize_t
therm_min_show(struct device
*dev
,
698 struct device_attribute
*devattr
, char *buf
)
700 struct sensor_device_attribute
*attr
= to_sensor_dev_attr(devattr
);
701 struct pc87360_data
*data
= pc87360_update_device(dev
);
702 return sprintf(buf
, "%u\n", IN_FROM_REG(data
->in_min
[attr
->index
],
706 static ssize_t
therm_min_store(struct device
*dev
,
707 struct device_attribute
*devattr
,
708 const char *buf
, size_t count
)
710 struct sensor_device_attribute
*attr
= to_sensor_dev_attr(devattr
);
711 struct pc87360_data
*data
= dev_get_drvdata(dev
);
715 err
= kstrtol(buf
, 10, &val
);
719 mutex_lock(&data
->update_lock
);
720 data
->in_min
[attr
->index
] = IN_TO_REG(val
, data
->in_vref
);
721 pc87360_write_value(data
, LD_IN
, attr
->index
, PC87365_REG_TEMP_MIN
,
722 data
->in_min
[attr
->index
]);
723 mutex_unlock(&data
->update_lock
);
727 static struct sensor_device_attribute therm_min
[] = {
728 SENSOR_ATTR_RW(temp4_min
, therm_min
, 0 + 11),
729 SENSOR_ATTR_RW(temp5_min
, therm_min
, 1 + 11),
730 SENSOR_ATTR_RW(temp6_min
, therm_min
, 2 + 11),
733 static ssize_t
therm_max_show(struct device
*dev
,
734 struct device_attribute
*devattr
, char *buf
)
736 struct sensor_device_attribute
*attr
= to_sensor_dev_attr(devattr
);
737 struct pc87360_data
*data
= pc87360_update_device(dev
);
738 return sprintf(buf
, "%u\n", IN_FROM_REG(data
->in_max
[attr
->index
],
742 static ssize_t
therm_max_store(struct device
*dev
,
743 struct device_attribute
*devattr
,
744 const char *buf
, size_t count
)
746 struct sensor_device_attribute
*attr
= to_sensor_dev_attr(devattr
);
747 struct pc87360_data
*data
= dev_get_drvdata(dev
);
751 err
= kstrtol(buf
, 10, &val
);
755 mutex_lock(&data
->update_lock
);
756 data
->in_max
[attr
->index
] = IN_TO_REG(val
, data
->in_vref
);
757 pc87360_write_value(data
, LD_IN
, attr
->index
, PC87365_REG_TEMP_MAX
,
758 data
->in_max
[attr
->index
]);
759 mutex_unlock(&data
->update_lock
);
763 static struct sensor_device_attribute therm_max
[] = {
764 SENSOR_ATTR_RW(temp4_max
, therm_max
, 0 + 11),
765 SENSOR_ATTR_RW(temp5_max
, therm_max
, 1 + 11),
766 SENSOR_ATTR_RW(temp6_max
, therm_max
, 2 + 11),
769 static ssize_t
therm_crit_show(struct device
*dev
,
770 struct device_attribute
*devattr
, char *buf
)
772 struct sensor_device_attribute
*attr
= to_sensor_dev_attr(devattr
);
773 struct pc87360_data
*data
= pc87360_update_device(dev
);
774 return sprintf(buf
, "%u\n", IN_FROM_REG(data
->in_crit
[attr
->index
-11],
778 static ssize_t
therm_crit_store(struct device
*dev
,
779 struct device_attribute
*devattr
,
780 const char *buf
, size_t count
)
782 struct sensor_device_attribute
*attr
= to_sensor_dev_attr(devattr
);
783 struct pc87360_data
*data
= dev_get_drvdata(dev
);
787 err
= kstrtol(buf
, 10, &val
);
791 mutex_lock(&data
->update_lock
);
792 data
->in_crit
[attr
->index
-11] = IN_TO_REG(val
, data
->in_vref
);
793 pc87360_write_value(data
, LD_IN
, attr
->index
, PC87365_REG_TEMP_CRIT
,
794 data
->in_crit
[attr
->index
-11]);
795 mutex_unlock(&data
->update_lock
);
799 static struct sensor_device_attribute therm_crit
[] = {
800 SENSOR_ATTR_RW(temp4_crit
, therm_crit
, 0 + 11),
801 SENSOR_ATTR_RW(temp5_crit
, therm_crit
, 1 + 11),
802 SENSOR_ATTR_RW(temp6_crit
, therm_crit
, 2 + 11),
806 * show_therm_min/max_alarm() reads data from the per-channel voltage
807 * status register (sec 11.5.12)
809 static ssize_t
therm_min_alarm_show(struct device
*dev
,
810 struct device_attribute
*devattr
,
813 struct pc87360_data
*data
= pc87360_update_device(dev
);
814 unsigned nr
= to_sensor_dev_attr(devattr
)->index
;
816 return sprintf(buf
, "%u\n", !!(data
->in_status
[nr
] & CHAN_ALM_MIN
));
819 static struct sensor_device_attribute therm_min_alarm
[] = {
820 SENSOR_ATTR_RO(temp4_min_alarm
, therm_min_alarm
, 0 + 11),
821 SENSOR_ATTR_RO(temp5_min_alarm
, therm_min_alarm
, 1 + 11),
822 SENSOR_ATTR_RO(temp6_min_alarm
, therm_min_alarm
, 2 + 11),
825 static ssize_t
therm_max_alarm_show(struct device
*dev
,
826 struct device_attribute
*devattr
,
829 struct pc87360_data
*data
= pc87360_update_device(dev
);
830 unsigned nr
= to_sensor_dev_attr(devattr
)->index
;
832 return sprintf(buf
, "%u\n", !!(data
->in_status
[nr
] & CHAN_ALM_MAX
));
835 static struct sensor_device_attribute therm_max_alarm
[] = {
836 SENSOR_ATTR_RO(temp4_max_alarm
, therm_max_alarm
, 0 + 11),
837 SENSOR_ATTR_RO(temp5_max_alarm
, therm_max_alarm
, 1 + 11),
838 SENSOR_ATTR_RO(temp6_max_alarm
, therm_max_alarm
, 2 + 11),
841 static ssize_t
therm_crit_alarm_show(struct device
*dev
,
842 struct device_attribute
*devattr
,
845 struct pc87360_data
*data
= pc87360_update_device(dev
);
846 unsigned nr
= to_sensor_dev_attr(devattr
)->index
;
848 return sprintf(buf
, "%u\n", !!(data
->in_status
[nr
] & TEMP_ALM_CRIT
));
851 static struct sensor_device_attribute therm_crit_alarm
[] = {
852 SENSOR_ATTR_RO(temp4_crit_alarm
, therm_crit_alarm
, 0 + 11),
853 SENSOR_ATTR_RO(temp5_crit_alarm
, therm_crit_alarm
, 1 + 11),
854 SENSOR_ATTR_RO(temp6_crit_alarm
, therm_crit_alarm
, 2 + 11),
857 #define THERM_UNIT_ATTRS(X) \
858 &therm_input[X].dev_attr.attr, \
859 &therm_status[X].dev_attr.attr, \
860 &therm_min[X].dev_attr.attr, \
861 &therm_max[X].dev_attr.attr, \
862 &therm_crit[X].dev_attr.attr, \
863 &therm_min_alarm[X].dev_attr.attr, \
864 &therm_max_alarm[X].dev_attr.attr, \
865 &therm_crit_alarm[X].dev_attr.attr
867 static struct attribute
*pc8736x_therm_attr_array
[] = {
873 static const struct attribute_group pc8736x_therm_group
= {
874 .attrs
= pc8736x_therm_attr_array
,
877 static ssize_t
temp_input_show(struct device
*dev
,
878 struct device_attribute
*devattr
, char *buf
)
880 struct sensor_device_attribute
*attr
= to_sensor_dev_attr(devattr
);
881 struct pc87360_data
*data
= pc87360_update_device(dev
);
882 return sprintf(buf
, "%d\n", TEMP_FROM_REG(data
->temp
[attr
->index
]));
885 static struct sensor_device_attribute temp_input
[] = {
886 SENSOR_ATTR_RO(temp1_input
, temp_input
, 0),
887 SENSOR_ATTR_RO(temp2_input
, temp_input
, 1),
888 SENSOR_ATTR_RO(temp3_input
, temp_input
, 2),
891 static ssize_t
temp_status_show(struct device
*dev
,
892 struct device_attribute
*devattr
, char *buf
)
894 struct sensor_device_attribute
*attr
= to_sensor_dev_attr(devattr
);
895 struct pc87360_data
*data
= pc87360_update_device(dev
);
896 return sprintf(buf
, "%d\n", data
->temp_status
[attr
->index
]);
899 static struct sensor_device_attribute temp_status
[] = {
900 SENSOR_ATTR_RO(temp1_status
, temp_status
, 0),
901 SENSOR_ATTR_RO(temp2_status
, temp_status
, 1),
902 SENSOR_ATTR_RO(temp3_status
, temp_status
, 2),
905 static ssize_t
temp_min_show(struct device
*dev
,
906 struct device_attribute
*devattr
, char *buf
)
908 struct sensor_device_attribute
*attr
= to_sensor_dev_attr(devattr
);
909 struct pc87360_data
*data
= pc87360_update_device(dev
);
910 return sprintf(buf
, "%d\n", TEMP_FROM_REG(data
->temp_min
[attr
->index
]));
913 static ssize_t
temp_min_store(struct device
*dev
,
914 struct device_attribute
*devattr
,
915 const char *buf
, size_t count
)
917 struct sensor_device_attribute
*attr
= to_sensor_dev_attr(devattr
);
918 struct pc87360_data
*data
= dev_get_drvdata(dev
);
922 err
= kstrtol(buf
, 10, &val
);
926 mutex_lock(&data
->update_lock
);
927 data
->temp_min
[attr
->index
] = TEMP_TO_REG(val
);
928 pc87360_write_value(data
, LD_TEMP
, attr
->index
, PC87365_REG_TEMP_MIN
,
929 data
->temp_min
[attr
->index
]);
930 mutex_unlock(&data
->update_lock
);
934 static struct sensor_device_attribute temp_min
[] = {
935 SENSOR_ATTR_RW(temp1_min
, temp_min
, 0),
936 SENSOR_ATTR_RW(temp2_min
, temp_min
, 1),
937 SENSOR_ATTR_RW(temp3_min
, temp_min
, 2),
940 static ssize_t
temp_max_show(struct device
*dev
,
941 struct device_attribute
*devattr
, char *buf
)
943 struct sensor_device_attribute
*attr
= to_sensor_dev_attr(devattr
);
944 struct pc87360_data
*data
= pc87360_update_device(dev
);
945 return sprintf(buf
, "%d\n", TEMP_FROM_REG(data
->temp_max
[attr
->index
]));
948 static ssize_t
temp_max_store(struct device
*dev
,
949 struct device_attribute
*devattr
,
950 const char *buf
, size_t count
)
952 struct sensor_device_attribute
*attr
= to_sensor_dev_attr(devattr
);
953 struct pc87360_data
*data
= dev_get_drvdata(dev
);
957 err
= kstrtol(buf
, 10, &val
);
961 mutex_lock(&data
->update_lock
);
962 data
->temp_max
[attr
->index
] = TEMP_TO_REG(val
);
963 pc87360_write_value(data
, LD_TEMP
, attr
->index
, PC87365_REG_TEMP_MAX
,
964 data
->temp_max
[attr
->index
]);
965 mutex_unlock(&data
->update_lock
);
969 static struct sensor_device_attribute temp_max
[] = {
970 SENSOR_ATTR_RW(temp1_max
, temp_max
, 0),
971 SENSOR_ATTR_RW(temp2_max
, temp_max
, 1),
972 SENSOR_ATTR_RW(temp3_max
, temp_max
, 2),
975 static ssize_t
temp_crit_show(struct device
*dev
,
976 struct device_attribute
*devattr
, char *buf
)
978 struct sensor_device_attribute
*attr
= to_sensor_dev_attr(devattr
);
979 struct pc87360_data
*data
= pc87360_update_device(dev
);
980 return sprintf(buf
, "%d\n",
981 TEMP_FROM_REG(data
->temp_crit
[attr
->index
]));
984 static ssize_t
temp_crit_store(struct device
*dev
,
985 struct device_attribute
*devattr
,
986 const char *buf
, size_t count
)
988 struct sensor_device_attribute
*attr
= to_sensor_dev_attr(devattr
);
989 struct pc87360_data
*data
= dev_get_drvdata(dev
);
993 err
= kstrtol(buf
, 10, &val
);
997 mutex_lock(&data
->update_lock
);
998 data
->temp_crit
[attr
->index
] = TEMP_TO_REG(val
);
999 pc87360_write_value(data
, LD_TEMP
, attr
->index
, PC87365_REG_TEMP_CRIT
,
1000 data
->temp_crit
[attr
->index
]);
1001 mutex_unlock(&data
->update_lock
);
1005 static struct sensor_device_attribute temp_crit
[] = {
1006 SENSOR_ATTR_RW(temp1_crit
, temp_crit
, 0),
1007 SENSOR_ATTR_RW(temp2_crit
, temp_crit
, 1),
1008 SENSOR_ATTR_RW(temp3_crit
, temp_crit
, 2),
1012 * temp_min/max_alarm_show() reads data from the per-channel status
1013 * register (sec 12.3.7), not the temp event status registers (sec
1014 * 12.3.2) that show_temp_alarm() reads (via data->temp_alarms)
1016 static ssize_t
temp_min_alarm_show(struct device
*dev
,
1017 struct device_attribute
*devattr
,
1020 struct pc87360_data
*data
= pc87360_update_device(dev
);
1021 unsigned nr
= to_sensor_dev_attr(devattr
)->index
;
1023 return sprintf(buf
, "%u\n", !!(data
->temp_status
[nr
] & CHAN_ALM_MIN
));
1026 static struct sensor_device_attribute temp_min_alarm
[] = {
1027 SENSOR_ATTR_RO(temp1_min_alarm
, temp_min_alarm
, 0),
1028 SENSOR_ATTR_RO(temp2_min_alarm
, temp_min_alarm
, 1),
1029 SENSOR_ATTR_RO(temp3_min_alarm
, temp_min_alarm
, 2),
1032 static ssize_t
temp_max_alarm_show(struct device
*dev
,
1033 struct device_attribute
*devattr
,
1036 struct pc87360_data
*data
= pc87360_update_device(dev
);
1037 unsigned nr
= to_sensor_dev_attr(devattr
)->index
;
1039 return sprintf(buf
, "%u\n", !!(data
->temp_status
[nr
] & CHAN_ALM_MAX
));
1042 static struct sensor_device_attribute temp_max_alarm
[] = {
1043 SENSOR_ATTR_RO(temp1_max_alarm
, temp_max_alarm
, 0),
1044 SENSOR_ATTR_RO(temp2_max_alarm
, temp_max_alarm
, 1),
1045 SENSOR_ATTR_RO(temp3_max_alarm
, temp_max_alarm
, 2),
1048 static ssize_t
temp_crit_alarm_show(struct device
*dev
,
1049 struct device_attribute
*devattr
,
1052 struct pc87360_data
*data
= pc87360_update_device(dev
);
1053 unsigned nr
= to_sensor_dev_attr(devattr
)->index
;
1055 return sprintf(buf
, "%u\n", !!(data
->temp_status
[nr
] & TEMP_ALM_CRIT
));
1058 static struct sensor_device_attribute temp_crit_alarm
[] = {
1059 SENSOR_ATTR_RO(temp1_crit_alarm
, temp_crit_alarm
, 0),
1060 SENSOR_ATTR_RO(temp2_crit_alarm
, temp_crit_alarm
, 1),
1061 SENSOR_ATTR_RO(temp3_crit_alarm
, temp_crit_alarm
, 2),
1064 #define TEMP_FAULT 0x40 /* open diode */
1065 static ssize_t
temp_fault_show(struct device
*dev
,
1066 struct device_attribute
*devattr
, char *buf
)
1068 struct pc87360_data
*data
= pc87360_update_device(dev
);
1069 unsigned nr
= to_sensor_dev_attr(devattr
)->index
;
1071 return sprintf(buf
, "%u\n", !!(data
->temp_status
[nr
] & TEMP_FAULT
));
1074 static struct sensor_device_attribute temp_fault
[] = {
1075 SENSOR_ATTR_RO(temp1_fault
, temp_fault
, 0),
1076 SENSOR_ATTR_RO(temp2_fault
, temp_fault
, 1),
1077 SENSOR_ATTR_RO(temp3_fault
, temp_fault
, 2),
1080 #define TEMP_UNIT_ATTRS(X) \
1081 { &temp_input[X].dev_attr.attr, \
1082 &temp_status[X].dev_attr.attr, \
1083 &temp_min[X].dev_attr.attr, \
1084 &temp_max[X].dev_attr.attr, \
1085 &temp_crit[X].dev_attr.attr, \
1086 &temp_min_alarm[X].dev_attr.attr, \
1087 &temp_max_alarm[X].dev_attr.attr, \
1088 &temp_crit_alarm[X].dev_attr.attr, \
1089 &temp_fault[X].dev_attr.attr, \
1093 static struct attribute
*pc8736x_temp_attr
[][10] = {
1099 static const struct attribute_group pc8736x_temp_attr_group
[] = {
1100 { .attrs
= pc8736x_temp_attr
[0] },
1101 { .attrs
= pc8736x_temp_attr
[1] },
1102 { .attrs
= pc8736x_temp_attr
[2] }
1105 static ssize_t
alarms_temp_show(struct device
*dev
,
1106 struct device_attribute
*attr
, char *buf
)
1108 struct pc87360_data
*data
= pc87360_update_device(dev
);
1109 return sprintf(buf
, "%u\n", data
->temp_alarms
);
1112 static DEVICE_ATTR_RO(alarms_temp
);
1114 static ssize_t
fan_input_show(struct device
*dev
,
1115 struct device_attribute
*devattr
, char *buf
)
1117 struct sensor_device_attribute
*attr
= to_sensor_dev_attr(devattr
);
1118 struct pc87360_data
*data
= pc87360_update_device(dev
);
1119 return sprintf(buf
, "%u\n", FAN_FROM_REG(data
->fan
[attr
->index
],
1120 FAN_DIV_FROM_REG(data
->fan_status
[attr
->index
])));
1123 static struct sensor_device_attribute fan_input
[] = {
1124 SENSOR_ATTR_RO(fan1_input
, fan_input
, 0),
1125 SENSOR_ATTR_RO(fan2_input
, fan_input
, 1),
1126 SENSOR_ATTR_RO(fan3_input
, fan_input
, 2),
1129 static ssize_t
fan_status_show(struct device
*dev
,
1130 struct device_attribute
*devattr
, char *buf
)
1132 struct sensor_device_attribute
*attr
= to_sensor_dev_attr(devattr
);
1133 struct pc87360_data
*data
= pc87360_update_device(dev
);
1134 return sprintf(buf
, "%u\n",
1135 FAN_STATUS_FROM_REG(data
->fan_status
[attr
->index
]));
1138 static struct sensor_device_attribute fan_status
[] = {
1139 SENSOR_ATTR_RO(fan1_status
, fan_status
, 0),
1140 SENSOR_ATTR_RO(fan2_status
, fan_status
, 1),
1141 SENSOR_ATTR_RO(fan3_status
, fan_status
, 2),
1144 static ssize_t
fan_div_show(struct device
*dev
,
1145 struct device_attribute
*devattr
, char *buf
)
1147 struct sensor_device_attribute
*attr
= to_sensor_dev_attr(devattr
);
1148 struct pc87360_data
*data
= pc87360_update_device(dev
);
1149 return sprintf(buf
, "%u\n",
1150 FAN_DIV_FROM_REG(data
->fan_status
[attr
->index
]));
1153 static struct sensor_device_attribute fan_div
[] = {
1154 SENSOR_ATTR_RO(fan1_div
, fan_div
, 0),
1155 SENSOR_ATTR_RO(fan2_div
, fan_div
, 1),
1156 SENSOR_ATTR_RO(fan3_div
, fan_div
, 2),
1159 static ssize_t
fan_min_show(struct device
*dev
,
1160 struct device_attribute
*devattr
, char *buf
)
1162 struct sensor_device_attribute
*attr
= to_sensor_dev_attr(devattr
);
1163 struct pc87360_data
*data
= pc87360_update_device(dev
);
1164 return sprintf(buf
, "%u\n", FAN_FROM_REG(data
->fan_min
[attr
->index
],
1165 FAN_DIV_FROM_REG(data
->fan_status
[attr
->index
])));
1168 static ssize_t
fan_min_store(struct device
*dev
,
1169 struct device_attribute
*devattr
,
1170 const char *buf
, size_t count
)
1172 struct sensor_device_attribute
*attr
= to_sensor_dev_attr(devattr
);
1173 struct pc87360_data
*data
= dev_get_drvdata(dev
);
1177 err
= kstrtol(buf
, 10, &fan_min
);
1181 mutex_lock(&data
->update_lock
);
1182 fan_min
= FAN_TO_REG(fan_min
,
1183 FAN_DIV_FROM_REG(data
->fan_status
[attr
->index
]));
1185 /* If it wouldn't fit, change clock divisor */
1186 while (fan_min
> 255
1187 && (data
->fan_status
[attr
->index
] & 0x60) != 0x60) {
1189 data
->fan
[attr
->index
] >>= 1;
1190 data
->fan_status
[attr
->index
] += 0x20;
1192 data
->fan_min
[attr
->index
] = fan_min
> 255 ? 255 : fan_min
;
1193 pc87360_write_value(data
, LD_FAN
, NO_BANK
,
1194 PC87360_REG_FAN_MIN(attr
->index
),
1195 data
->fan_min
[attr
->index
]);
1197 /* Write new divider, preserve alarm bits */
1198 pc87360_write_value(data
, LD_FAN
, NO_BANK
,
1199 PC87360_REG_FAN_STATUS(attr
->index
),
1200 data
->fan_status
[attr
->index
] & 0xF9);
1201 mutex_unlock(&data
->update_lock
);
1206 static struct sensor_device_attribute fan_min
[] = {
1207 SENSOR_ATTR_RW(fan1_min
, fan_min
, 0),
1208 SENSOR_ATTR_RW(fan2_min
, fan_min
, 1),
1209 SENSOR_ATTR_RW(fan3_min
, fan_min
, 2),
1212 #define FAN_UNIT_ATTRS(X) \
1213 { &fan_input[X].dev_attr.attr, \
1214 &fan_status[X].dev_attr.attr, \
1215 &fan_div[X].dev_attr.attr, \
1216 &fan_min[X].dev_attr.attr, \
1220 static struct attribute
*pc8736x_fan_attr
[][5] = {
1226 static const struct attribute_group pc8736x_fan_attr_group
[] = {
1227 { .attrs
= pc8736x_fan_attr
[0], },
1228 { .attrs
= pc8736x_fan_attr
[1], },
1229 { .attrs
= pc8736x_fan_attr
[2], },
1232 static ssize_t
pwm_show(struct device
*dev
, struct device_attribute
*devattr
,
1235 struct sensor_device_attribute
*attr
= to_sensor_dev_attr(devattr
);
1236 struct pc87360_data
*data
= pc87360_update_device(dev
);
1237 return sprintf(buf
, "%u\n",
1238 PWM_FROM_REG(data
->pwm
[attr
->index
],
1239 FAN_CONFIG_INVERT(data
->fan_conf
,
1243 static ssize_t
pwm_store(struct device
*dev
, struct device_attribute
*devattr
,
1244 const char *buf
, size_t count
)
1246 struct sensor_device_attribute
*attr
= to_sensor_dev_attr(devattr
);
1247 struct pc87360_data
*data
= dev_get_drvdata(dev
);
1251 err
= kstrtol(buf
, 10, &val
);
1255 mutex_lock(&data
->update_lock
);
1256 data
->pwm
[attr
->index
] = PWM_TO_REG(val
,
1257 FAN_CONFIG_INVERT(data
->fan_conf
, attr
->index
));
1258 pc87360_write_value(data
, LD_FAN
, NO_BANK
, PC87360_REG_PWM(attr
->index
),
1259 data
->pwm
[attr
->index
]);
1260 mutex_unlock(&data
->update_lock
);
1264 static struct sensor_device_attribute pwm
[] = {
1265 SENSOR_ATTR_RW(pwm1
, pwm
, 0),
1266 SENSOR_ATTR_RW(pwm2
, pwm
, 1),
1267 SENSOR_ATTR_RW(pwm3
, pwm
, 2),
1270 static ssize_t
name_show(struct device
*dev
,
1271 struct device_attribute
*devattr
, char *buf
)
1273 struct pc87360_data
*data
= dev_get_drvdata(dev
);
1274 return sprintf(buf
, "%s\n", data
->name
);
1277 static DEVICE_ATTR_RO(name
);
1279 static void pc87360_remove_files(struct device
*dev
)
1283 device_remove_file(dev
, &dev_attr_name
);
1284 device_remove_file(dev
, &dev_attr_alarms_temp
);
1285 for (i
= 0; i
< ARRAY_SIZE(pc8736x_temp_attr_group
); i
++)
1286 sysfs_remove_group(&dev
->kobj
, &pc8736x_temp_attr_group
[i
]);
1287 for (i
= 0; i
< ARRAY_SIZE(pc8736x_fan_attr_group
); i
++) {
1288 sysfs_remove_group(&pdev
->dev
.kobj
, &pc8736x_fan_attr_group
[i
]);
1289 device_remove_file(dev
, &pwm
[i
].dev_attr
);
1291 sysfs_remove_group(&dev
->kobj
, &pc8736x_therm_group
);
1292 sysfs_remove_group(&dev
->kobj
, &pc8736x_vin_group
);
1295 static void pc87360_init_device(struct platform_device
*pdev
,
1296 int use_thermistors
)
1298 struct pc87360_data
*data
= platform_get_drvdata(pdev
);
1300 const u8 init_in
[14] = { 2, 2, 2, 2, 2, 2, 2, 1, 1, 3, 1, 2, 2, 2 };
1301 const u8 init_temp
[3] = { 2, 2, 1 };
1304 if (init
>= 2 && data
->innr
) {
1305 reg
= pc87360_read_value(data
, LD_IN
, NO_BANK
,
1306 PC87365_REG_IN_CONVRATE
);
1307 dev_info(&pdev
->dev
,
1308 "VLM conversion set to 1s period, 160us delay\n");
1309 pc87360_write_value(data
, LD_IN
, NO_BANK
,
1310 PC87365_REG_IN_CONVRATE
,
1311 (reg
& 0xC0) | 0x11);
1314 nr
= data
->innr
< 11 ? data
->innr
: 11;
1315 for (i
= 0; i
< nr
; i
++) {
1316 reg
= pc87360_read_value(data
, LD_IN
, i
,
1317 PC87365_REG_IN_STATUS
);
1318 dev_dbg(&pdev
->dev
, "bios in%d status:0x%02x\n", i
, reg
);
1319 if (init
>= init_in
[i
]) {
1320 /* Forcibly enable voltage channel */
1321 if (!(reg
& CHAN_ENA
)) {
1322 dev_dbg(&pdev
->dev
, "Forcibly enabling in%d\n",
1324 pc87360_write_value(data
, LD_IN
, i
,
1325 PC87365_REG_IN_STATUS
,
1326 (reg
& 0x68) | 0x87);
1332 * We can't blindly trust the Super-I/O space configuration bit,
1333 * most BIOS won't set it properly
1335 dev_dbg(&pdev
->dev
, "bios thermistors:%d\n", use_thermistors
);
1336 for (i
= 11; i
< data
->innr
; i
++) {
1337 reg
= pc87360_read_value(data
, LD_IN
, i
,
1338 PC87365_REG_TEMP_STATUS
);
1339 use_thermistors
= use_thermistors
|| (reg
& CHAN_ENA
);
1340 /* thermistors are temp[4-6], measured on vin[11-14] */
1341 dev_dbg(&pdev
->dev
, "bios temp%d_status:0x%02x\n", i
-7, reg
);
1343 dev_dbg(&pdev
->dev
, "using thermistors:%d\n", use_thermistors
);
1345 i
= use_thermistors
? 2 : 0;
1346 for (; i
< data
->tempnr
; i
++) {
1347 reg
= pc87360_read_value(data
, LD_TEMP
, i
,
1348 PC87365_REG_TEMP_STATUS
);
1349 dev_dbg(&pdev
->dev
, "bios temp%d_status:0x%02x\n", i
+ 1, reg
);
1350 if (init
>= init_temp
[i
]) {
1351 /* Forcibly enable temperature channel */
1352 if (!(reg
& CHAN_ENA
)) {
1354 "Forcibly enabling temp%d\n", i
+ 1);
1355 pc87360_write_value(data
, LD_TEMP
, i
,
1356 PC87365_REG_TEMP_STATUS
,
1362 if (use_thermistors
) {
1363 for (i
= 11; i
< data
->innr
; i
++) {
1364 if (init
>= init_in
[i
]) {
1366 * The pin may already be used by thermal
1369 reg
= pc87360_read_value(data
, LD_TEMP
,
1370 (i
- 11) / 2, PC87365_REG_TEMP_STATUS
);
1371 if (reg
& CHAN_ENA
) {
1373 "Skipping temp%d, pin already in use by temp%d\n",
1374 i
- 7, (i
- 11) / 2);
1378 /* Forcibly enable thermistor channel */
1379 reg
= pc87360_read_value(data
, LD_IN
, i
,
1380 PC87365_REG_IN_STATUS
);
1381 if (!(reg
& CHAN_ENA
)) {
1383 "Forcibly enabling temp%d\n",
1385 pc87360_write_value(data
, LD_IN
, i
,
1386 PC87365_REG_TEMP_STATUS
,
1387 (reg
& 0x60) | 0x8F);
1394 reg
= pc87360_read_value(data
, LD_IN
, NO_BANK
,
1395 PC87365_REG_IN_CONFIG
);
1396 dev_dbg(&pdev
->dev
, "bios vin-cfg:0x%02x\n", reg
);
1397 if (reg
& CHAN_ENA
) {
1399 "Forcibly enabling monitoring (VLM)\n");
1400 pc87360_write_value(data
, LD_IN
, NO_BANK
,
1401 PC87365_REG_IN_CONFIG
,
1407 reg
= pc87360_read_value(data
, LD_TEMP
, NO_BANK
,
1408 PC87365_REG_TEMP_CONFIG
);
1409 dev_dbg(&pdev
->dev
, "bios temp-cfg:0x%02x\n", reg
);
1410 if (reg
& CHAN_ENA
) {
1412 "Forcibly enabling monitoring (TMS)\n");
1413 pc87360_write_value(data
, LD_TEMP
, NO_BANK
,
1414 PC87365_REG_TEMP_CONFIG
,
1419 /* Chip config as documented by National Semi. */
1420 pc87360_write_value(data
, LD_TEMP
, 0xF, 0xA, 0x08);
1422 * We voluntarily omit the bank here, in case the
1423 * sequence itself matters. It shouldn't be a problem,
1424 * since nobody else is supposed to access the
1425 * device at that point.
1427 pc87360_write_value(data
, LD_TEMP
, NO_BANK
, 0xB, 0x04);
1428 pc87360_write_value(data
, LD_TEMP
, NO_BANK
, 0xC, 0x35);
1429 pc87360_write_value(data
, LD_TEMP
, NO_BANK
, 0xD, 0x05);
1430 pc87360_write_value(data
, LD_TEMP
, NO_BANK
, 0xE, 0x05);
1435 static int pc87360_probe(struct platform_device
*pdev
)
1438 struct pc87360_data
*data
;
1441 int use_thermistors
= 0;
1442 struct device
*dev
= &pdev
->dev
;
1444 data
= devm_kzalloc(dev
, sizeof(struct pc87360_data
), GFP_KERNEL
);
1463 data
->fannr
= extra_isa
[0] ? 3 : 0;
1464 data
->innr
= extra_isa
[1] ? 11 : 0;
1465 data
->tempnr
= extra_isa
[2] ? 2 : 0;
1469 data
->fannr
= extra_isa
[0] ? 3 : 0;
1470 data
->innr
= extra_isa
[1] ? 14 : 0;
1471 data
->tempnr
= extra_isa
[2] ? 3 : 0;
1476 mutex_init(&data
->lock
);
1477 mutex_init(&data
->update_lock
);
1478 platform_set_drvdata(pdev
, data
);
1480 for (i
= 0; i
< LDNI_MAX
; i
++) {
1481 data
->address
[i
] = extra_isa
[i
];
1482 if (data
->address
[i
]
1483 && !devm_request_region(dev
, extra_isa
[i
], PC87360_EXTENT
,
1486 "Region 0x%x-0x%x already in use!\n",
1487 extra_isa
[i
], extra_isa
[i
]+PC87360_EXTENT
-1);
1492 /* Retrieve the fans configuration from Super-I/O space */
1494 data
->fan_conf
= confreg
[0] | (confreg
[1] << 8);
1497 * Use the correct reference voltage
1498 * Unless both the VLM and the TMS logical devices agree to
1499 * use an external Vref, the internal one is used.
1502 i
= pc87360_read_value(data
, LD_IN
, NO_BANK
,
1503 PC87365_REG_IN_CONFIG
);
1505 i
&= pc87360_read_value(data
, LD_TEMP
, NO_BANK
,
1506 PC87365_REG_TEMP_CONFIG
);
1508 data
->in_vref
= (i
&0x02) ? 3025 : 2966;
1509 dev_dbg(dev
, "Using %s reference voltage\n",
1510 (i
&0x02) ? "external" : "internal");
1512 data
->vid_conf
= confreg
[3];
1513 data
->vrm
= vid_which_vrm();
1516 /* Fan clock dividers may be needed before any data is read */
1517 for (i
= 0; i
< data
->fannr
; i
++) {
1518 if (FAN_CONFIG_MONITOR(data
->fan_conf
, i
))
1519 data
->fan_status
[i
] = pc87360_read_value(data
,
1521 PC87360_REG_FAN_STATUS(i
));
1525 if (devid
== 0xe9 && data
->address
[1]) /* PC87366 */
1526 use_thermistors
= confreg
[2] & 0x40;
1528 pc87360_init_device(pdev
, use_thermistors
);
1531 /* Register all-or-nothing sysfs groups */
1534 err
= sysfs_create_group(&dev
->kobj
, &pc8736x_vin_group
);
1539 if (data
->innr
== 14) {
1540 err
= sysfs_create_group(&dev
->kobj
, &pc8736x_therm_group
);
1545 /* create device attr-files for varying sysfs groups */
1548 for (i
= 0; i
< data
->tempnr
; i
++) {
1549 err
= sysfs_create_group(&dev
->kobj
,
1550 &pc8736x_temp_attr_group
[i
]);
1554 err
= device_create_file(dev
, &dev_attr_alarms_temp
);
1559 for (i
= 0; i
< data
->fannr
; i
++) {
1560 if (FAN_CONFIG_MONITOR(data
->fan_conf
, i
)) {
1561 err
= sysfs_create_group(&dev
->kobj
,
1562 &pc8736x_fan_attr_group
[i
]);
1566 if (FAN_CONFIG_CONTROL(data
->fan_conf
, i
)) {
1567 err
= device_create_file(dev
, &pwm
[i
].dev_attr
);
1573 err
= device_create_file(dev
, &dev_attr_name
);
1577 data
->hwmon_dev
= hwmon_device_register(dev
);
1578 if (IS_ERR(data
->hwmon_dev
)) {
1579 err
= PTR_ERR(data
->hwmon_dev
);
1585 pc87360_remove_files(dev
);
1589 static int pc87360_remove(struct platform_device
*pdev
)
1591 struct pc87360_data
*data
= platform_get_drvdata(pdev
);
1593 hwmon_device_unregister(data
->hwmon_dev
);
1594 pc87360_remove_files(&pdev
->dev
);
1602 static struct platform_driver pc87360_driver
= {
1604 .name
= DRIVER_NAME
,
1606 .probe
= pc87360_probe
,
1607 .remove
= pc87360_remove
,
1611 * Device detection, registration and update
1614 static int __init
pc87360_find(int sioaddr
, u8
*devid
,
1615 unsigned short *addresses
)
1619 int nrdev
; /* logical device count */
1621 /* No superio_enter */
1623 /* Identify device */
1624 val
= force_id
? force_id
: superio_inb(sioaddr
, DEVID
);
1626 case 0xE1: /* PC87360 */
1627 case 0xE8: /* PC87363 */
1628 case 0xE4: /* PC87364 */
1631 case 0xE5: /* PC87365 */
1632 case 0xE9: /* PC87366 */
1636 superio_exit(sioaddr
);
1639 /* Remember the device id */
1642 for (i
= 0; i
< nrdev
; i
++) {
1643 /* select logical device */
1644 superio_outb(sioaddr
, DEV
, logdev
[i
]);
1646 val
= superio_inb(sioaddr
, ACT
);
1647 if (!(val
& 0x01)) {
1648 pr_info("Device 0x%02x not activated\n", logdev
[i
]);
1652 val
= (superio_inb(sioaddr
, BASE
) << 8)
1653 | superio_inb(sioaddr
, BASE
+ 1);
1655 pr_info("Base address not set for device 0x%02x\n",
1662 if (i
== 0) { /* Fans */
1663 confreg
[0] = superio_inb(sioaddr
, 0xF0);
1664 confreg
[1] = superio_inb(sioaddr
, 0xF1);
1666 pr_debug("Fan %d: mon=%d ctrl=%d inv=%d\n", 1,
1667 (confreg
[0] >> 2) & 1, (confreg
[0] >> 3) & 1,
1668 (confreg
[0] >> 4) & 1);
1669 pr_debug("Fan %d: mon=%d ctrl=%d inv=%d\n", 2,
1670 (confreg
[0] >> 5) & 1, (confreg
[0] >> 6) & 1,
1671 (confreg
[0] >> 7) & 1);
1672 pr_debug("Fan %d: mon=%d ctrl=%d inv=%d\n", 3,
1673 confreg
[1] & 1, (confreg
[1] >> 1) & 1,
1674 (confreg
[1] >> 2) & 1);
1675 } else if (i
== 1) { /* Voltages */
1676 /* Are we using thermistors? */
1677 if (*devid
== 0xE9) { /* PC87366 */
1679 * These registers are not logical-device
1680 * specific, just that we won't need them if
1681 * we don't use the VLM device
1683 confreg
[2] = superio_inb(sioaddr
, 0x2B);
1684 confreg
[3] = superio_inb(sioaddr
, 0x25);
1686 if (confreg
[2] & 0x40) {
1687 pr_info("Using thermistors for temperature monitoring\n");
1689 if (confreg
[3] & 0xE0) {
1690 pr_info("VID inputs routed (mode %u)\n",
1697 superio_exit(sioaddr
);
1701 static int __init
pc87360_device_add(unsigned short address
)
1703 struct resource res
[3];
1704 int err
, i
, res_count
;
1706 pdev
= platform_device_alloc("pc87360", address
);
1709 pr_err("Device allocation failed\n");
1713 memset(res
, 0, 3 * sizeof(struct resource
));
1715 for (i
= 0; i
< 3; i
++) {
1718 res
[res_count
].start
= extra_isa
[i
];
1719 res
[res_count
].end
= extra_isa
[i
] + PC87360_EXTENT
- 1;
1720 res
[res_count
].name
= "pc87360";
1721 res
[res_count
].flags
= IORESOURCE_IO
;
1723 err
= acpi_check_resource_conflict(&res
[res_count
]);
1725 goto exit_device_put
;
1730 err
= platform_device_add_resources(pdev
, res
, res_count
);
1732 pr_err("Device resources addition failed (%d)\n", err
);
1733 goto exit_device_put
;
1736 err
= platform_device_add(pdev
);
1738 pr_err("Device addition failed (%d)\n", err
);
1739 goto exit_device_put
;
1745 platform_device_put(pdev
);
1750 static int __init
pc87360_init(void)
1753 unsigned short address
= 0;
1755 if (pc87360_find(0x2e, &devid
, extra_isa
)
1756 && pc87360_find(0x4e, &devid
, extra_isa
)) {
1757 pr_warn("PC8736x not detected, module not inserted\n");
1761 /* Arbitrarily pick one of the addresses */
1762 for (i
= 0; i
< 3; i
++) {
1763 if (extra_isa
[i
] != 0x0000) {
1764 address
= extra_isa
[i
];
1769 if (address
== 0x0000) {
1770 pr_warn("No active logical device, module not inserted\n");
1774 err
= platform_driver_register(&pc87360_driver
);
1778 /* Sets global pdev as a side effect */
1779 err
= pc87360_device_add(address
);
1786 platform_driver_unregister(&pc87360_driver
);
1791 static void __exit
pc87360_exit(void)
1793 platform_device_unregister(pdev
);
1794 platform_driver_unregister(&pc87360_driver
);
1797 MODULE_AUTHOR("Jean Delvare <jdelvare@suse.de>");
1798 MODULE_DESCRIPTION("PC8736x hardware monitor");
1799 MODULE_LICENSE("GPL");
1800 MODULE_ALIAS("platform:" DRIVER_NAME
);
1802 module_init(pc87360_init
);
1803 module_exit(pc87360_exit
);