2 * w83795.c - Linux kernel driver for hardware monitoring
3 * Copyright (C) 2008 Nuvoton Technology Corp.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation - version 2.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
20 * Supports following chips:
22 * Chip #vin #fanin #pwm #temp #dts wchipid vendid i2c ISA
23 * w83795g 21 14 8 6 8 0x79 0x5ca3 yes no
24 * w83795adg 18 14 2 6 8 0x79 0x5ca3 yes no
27 #include <linux/kernel.h>
28 #include <linux/module.h>
29 #include <linux/init.h>
30 #include <linux/slab.h>
31 #include <linux/i2c.h>
32 #include <linux/hwmon.h>
33 #include <linux/hwmon-sysfs.h>
34 #include <linux/err.h>
35 #include <linux/mutex.h>
36 #include <linux/delay.h>
38 /* Addresses to scan */
39 static const unsigned short normal_i2c
[] = {
40 0x2c, 0x2d, 0x2e, 0x2f, I2C_CLIENT_END
45 module_param(reset
, bool, 0);
46 MODULE_PARM_DESC(reset
, "Set to 1 to reset chip, not recommended");
49 #define W83795_REG_BANKSEL 0x00
50 #define W83795_REG_VENDORID 0xfd
51 #define W83795_REG_CHIPID 0xfe
52 #define W83795_REG_DEVICEID 0xfb
53 #define W83795_REG_DEVICEID_A 0xff
55 #define W83795_REG_I2C_ADDR 0xfc
56 #define W83795_REG_CONFIG 0x01
57 #define W83795_REG_CONFIG_CONFIG48 0x04
58 #define W83795_REG_CONFIG_START 0x01
60 /* Multi-Function Pin Ctrl Registers */
61 #define W83795_REG_VOLT_CTRL1 0x02
62 #define W83795_REG_VOLT_CTRL2 0x03
63 #define W83795_REG_TEMP_CTRL1 0x04
64 #define W83795_REG_TEMP_CTRL2 0x05
65 #define W83795_REG_FANIN_CTRL1 0x06
66 #define W83795_REG_FANIN_CTRL2 0x07
67 #define W83795_REG_VMIGB_CTRL 0x08
71 #define TEMP_CRIT_HYST 2
73 #define TEMP_WARN_HYST 4
74 /* only crit and crit_hyst affect real-time alarm status
75 * current crit crit_hyst warn warn_hyst */
76 static const u16 W83795_REG_TEMP
[][5] = {
77 {0x21, 0x96, 0x97, 0x98, 0x99}, /* TD1/TR1 */
78 {0x22, 0x9a, 0x9b, 0x9c, 0x9d}, /* TD2/TR2 */
79 {0x23, 0x9e, 0x9f, 0xa0, 0xa1}, /* TD3/TR3 */
80 {0x24, 0xa2, 0xa3, 0xa4, 0xa5}, /* TD4/TR4 */
81 {0x1f, 0xa6, 0xa7, 0xa8, 0xa9}, /* TR5 */
82 {0x20, 0xaa, 0xab, 0xac, 0xad}, /* TR6 */
88 static const u16 W83795_REG_IN
[][3] = {
90 {0x10, 0x70, 0x71}, /* VSEN1 */
91 {0x11, 0x72, 0x73}, /* VSEN2 */
92 {0x12, 0x74, 0x75}, /* VSEN3 */
93 {0x13, 0x76, 0x77}, /* VSEN4 */
94 {0x14, 0x78, 0x79}, /* VSEN5 */
95 {0x15, 0x7a, 0x7b}, /* VSEN6 */
96 {0x16, 0x7c, 0x7d}, /* VSEN7 */
97 {0x17, 0x7e, 0x7f}, /* VSEN8 */
98 {0x18, 0x80, 0x81}, /* VSEN9 */
99 {0x19, 0x82, 0x83}, /* VSEN10 */
100 {0x1A, 0x84, 0x85}, /* VSEN11 */
101 {0x1B, 0x86, 0x87}, /* VTT */
102 {0x1C, 0x88, 0x89}, /* 3VDD */
103 {0x1D, 0x8a, 0x8b}, /* 3VSB */
104 {0x1E, 0x8c, 0x8d}, /* VBAT */
105 {0x1F, 0xa6, 0xa7}, /* VSEN12 */
106 {0x20, 0xaa, 0xab}, /* VSEN13 */
107 {0x21, 0x96, 0x97}, /* VSEN14 */
108 {0x22, 0x9a, 0x9b}, /* VSEN15 */
109 {0x23, 0x9e, 0x9f}, /* VSEN16 */
110 {0x24, 0xa2, 0xa3}, /* VSEN17 */
112 #define W83795_REG_VRLSB 0x3C
114 static const u8 W83795_REG_IN_HL_LSB
[] = {
118 0x94, /* VTT, 3VDD, 3VSB, 3VBAT */
127 #define IN_LSB_REG(index, type) \
128 (((type) == 1) ? W83795_REG_IN_HL_LSB[(index)] \
129 : (W83795_REG_IN_HL_LSB[(index)] + 1))
131 #define IN_LSB_SHIFT 0
133 static const u8 IN_LSB_SHIFT_IDX
[][2] = {
134 /* High/Low LSB shift, LSB No. */
135 {0x00, 0x00}, /* VSEN1 */
136 {0x02, 0x00}, /* VSEN2 */
137 {0x04, 0x00}, /* VSEN3 */
138 {0x06, 0x00}, /* VSEN4 */
139 {0x00, 0x01}, /* VSEN5 */
140 {0x02, 0x01}, /* VSEN6 */
141 {0x04, 0x01}, /* VSEN7 */
142 {0x06, 0x01}, /* VSEN8 */
143 {0x00, 0x02}, /* VSEN9 */
144 {0x02, 0x02}, /* VSEN10 */
145 {0x04, 0x02}, /* VSEN11 */
146 {0x00, 0x03}, /* VTT */
147 {0x02, 0x03}, /* 3VDD */
148 {0x04, 0x03}, /* 3VSB */
149 {0x06, 0x03}, /* VBAT */
150 {0x06, 0x04}, /* VSEN12 */
151 {0x06, 0x05}, /* VSEN13 */
152 {0x06, 0x06}, /* VSEN14 */
153 {0x06, 0x07}, /* VSEN15 */
154 {0x06, 0x08}, /* VSEN16 */
155 {0x06, 0x09}, /* VSEN17 */
159 #define W83795_REG_FAN(index) (0x2E + (index))
160 #define W83795_REG_FAN_MIN_HL(index) (0xB6 + (index))
161 #define W83795_REG_FAN_MIN_LSB(index) (0xC4 + (index) / 2)
162 #define W83795_REG_FAN_MIN_LSB_SHIFT(index) \
163 (((index) & 1) ? 4 : 0)
165 #define W83795_REG_VID_CTRL 0x6A
167 #define W83795_REG_ALARM(index) (0x41 + (index))
168 #define W83795_REG_BEEP(index) (0x50 + (index))
170 #define W83795_REG_CLR_CHASSIS 0x4D
173 #define W83795_REG_FCMS1 0x201
174 #define W83795_REG_FCMS2 0x208
175 #define W83795_REG_TFMR(index) (0x202 + (index))
176 #define W83795_REG_FOMC 0x20F
178 #define W83795_REG_TSS(index) (0x209 + (index))
183 #define PWM_NONSTOP 3
184 #define PWM_STOP_TIME 4
185 #define W83795_REG_PWM(index, nr) (0x210 + (nr) * 8 + (index))
187 #define W83795_REG_FTSH(index) (0x240 + (index) * 2)
188 #define W83795_REG_FTSL(index) (0x241 + (index) * 2)
189 #define W83795_REG_TFTS 0x250
191 #define TEMP_PWM_TTTI 0
192 #define TEMP_PWM_CTFS 1
193 #define TEMP_PWM_HCT 2
194 #define TEMP_PWM_HOT 3
195 #define W83795_REG_TTTI(index) (0x260 + (index))
196 #define W83795_REG_CTFS(index) (0x268 + (index))
197 #define W83795_REG_HT(index) (0x270 + (index))
201 #define W83795_REG_SF4_TEMP(temp_num, index) \
202 (0x280 + 0x10 * (temp_num) + (index))
203 #define W83795_REG_SF4_PWM(temp_num, index) \
204 (0x288 + 0x10 * (temp_num) + (index))
206 #define W83795_REG_DTSC 0x301
207 #define W83795_REG_DTSE 0x302
208 #define W83795_REG_DTS(index) (0x26 + (index))
209 #define W83795_REG_PECI_TBASE(index) (0x320 + (index))
212 #define DTS_CRIT_HYST 1
214 #define DTS_WARN_HYST 3
215 #define W83795_REG_DTS_EXT(index) (0xB2 + (index))
217 #define SETUP_PWM_DEFAULT 0
218 #define SETUP_PWM_UPTIME 1
219 #define SETUP_PWM_DOWNTIME 2
220 #define W83795_REG_SETUP_PWM(index) (0x20C + (index))
222 static inline u16
in_from_reg(u8 index
, u16 val
)
224 /* 3VDD, 3VSB and VBAT: 6 mV/bit; other inputs: 2 mV/bit */
225 if (index
>= 12 && index
<= 14)
231 static inline u16
in_to_reg(u8 index
, u16 val
)
233 if (index
>= 12 && index
<= 14)
239 static inline unsigned long fan_from_reg(u16 val
)
241 if ((val
== 0xfff) || (val
== 0))
243 return 1350000UL / val
;
246 static inline u16
fan_to_reg(long rpm
)
250 return SENSORS_LIMIT((1350000 + (rpm
>> 1)) / rpm
, 1, 0xffe);
253 static inline unsigned long time_from_reg(u8 reg
)
258 static inline u8
time_to_reg(unsigned long val
)
260 return SENSORS_LIMIT((val
+ 50) / 100, 0, 0xff);
263 static inline long temp_from_reg(s8 reg
)
268 static inline s8
temp_to_reg(long val
, s8 min
, s8 max
)
270 return SENSORS_LIMIT(val
/ 1000, min
, max
);
273 static const u16 pwm_freq_cksel0
[16] = {
274 1024, 512, 341, 256, 205, 171, 146, 128,
275 85, 64, 32, 16, 8, 4, 2, 1
278 static unsigned int pwm_freq_from_reg(u8 reg
, u16 clkin
)
280 unsigned long base_clock
;
283 base_clock
= clkin
* 1000 / ((clkin
== 48000) ? 384 : 256);
284 return base_clock
/ ((reg
& 0x7f) + 1);
286 return pwm_freq_cksel0
[reg
& 0x0f];
289 static u8
pwm_freq_to_reg(unsigned long val
, u16 clkin
)
291 unsigned long base_clock
;
293 unsigned long best0
, best1
;
295 /* Best fit for cksel = 0 */
296 for (reg0
= 0; reg0
< ARRAY_SIZE(pwm_freq_cksel0
) - 1; reg0
++) {
297 if (val
> (pwm_freq_cksel0
[reg0
] +
298 pwm_freq_cksel0
[reg0
+ 1]) / 2)
301 if (val
< 375) /* cksel = 1 can't beat this */
303 best0
= pwm_freq_cksel0
[reg0
];
305 /* Best fit for cksel = 1 */
306 base_clock
= clkin
* 1000 / ((clkin
== 48000) ? 384 : 256);
307 reg1
= SENSORS_LIMIT(DIV_ROUND_CLOSEST(base_clock
, val
), 1, 128);
308 best1
= base_clock
/ reg1
;
309 reg1
= 0x80 | (reg1
- 1);
311 /* Choose the closest one */
312 if (abs(val
- best0
) > abs(val
- best1
))
318 enum chip_types
{w83795g
, w83795adg
};
321 struct device
*hwmon_dev
;
322 struct mutex update_lock
;
323 unsigned long last_updated
; /* In jiffies */
324 enum chip_types chip_type
;
328 u32 has_in
; /* Enable monitor VIN or not */
329 u8 has_dyn_in
; /* Only in2-0 can have this */
330 u16 in
[21][3]; /* Register value, read/high/low */
331 u8 in_lsb
[10][3]; /* LSB Register value, high/low */
332 u8 has_gain
; /* has gain: in17-20 * 8 */
334 u16 has_fan
; /* Enable fan14-1 or not */
335 u16 fan
[14]; /* Register value combine */
336 u16 fan_min
[14]; /* Register value combine */
338 u8 has_temp
; /* Enable monitor temp6-1 or not */
339 s8 temp
[6][5]; /* current, crit, crit_hyst, warn, warn_hyst */
340 u8 temp_read_vrlsb
[6];
341 u8 temp_mode
; /* Bit vector, 0 = TR, 1 = TD */
342 u8 temp_src
[3]; /* Register value */
344 u8 enable_dts
; /* Enable PECI and SB-TSI,
345 * bit 0: =1 enable, =0 disable,
346 * bit 1: =1 AMD SB-TSI, =0 Intel PECI */
347 u8 has_dts
; /* Enable monitor DTS temp */
348 s8 dts
[8]; /* Register value */
349 u8 dts_read_vrlsb
[8]; /* Register value */
350 s8 dts_ext
[4]; /* Register value */
352 u8 has_pwm
; /* 795g supports 8 pwm, 795adg only supports 2,
353 * no config register, only affected by chip
355 u8 pwm
[8][5]; /* Register value, output, freq, start,
356 * non stop, stop time */
357 u16 clkin
; /* CLKIN frequency in kHz */
358 u8 pwm_fcms
[2]; /* Register value */
359 u8 pwm_tfmr
[6]; /* Register value */
360 u8 pwm_fomc
; /* Register value */
362 u16 target_speed
[8]; /* Register value, target speed for speed
364 u8 tol_speed
; /* tolerance of target speed */
365 u8 pwm_temp
[6][4]; /* TTTI, CTFS, HCT, HOT */
366 u8 sf4_reg
[6][2][7]; /* 6 temp, temp/dcpwm, 7 registers */
368 u8 setup_pwm
[3]; /* Register value */
370 u8 alarms
[6]; /* Register value */
371 u8 beeps
[6]; /* Register value */
379 * We assume that nobdody can change the bank outside the driver.
382 /* Must be called with data->update_lock held, except during initialization */
383 static int w83795_set_bank(struct i2c_client
*client
, u8 bank
)
385 struct w83795_data
*data
= i2c_get_clientdata(client
);
388 /* If the same bank is already set, nothing to do */
389 if ((data
->bank
& 0x07) == bank
)
392 /* Change to new bank, preserve all other bits */
393 bank
|= data
->bank
& ~0x07;
394 err
= i2c_smbus_write_byte_data(client
, W83795_REG_BANKSEL
, bank
);
396 dev_err(&client
->dev
,
397 "Failed to set bank to %d, err %d\n",
406 /* Must be called with data->update_lock held, except during initialization */
407 static u8
w83795_read(struct i2c_client
*client
, u16 reg
)
411 err
= w83795_set_bank(client
, reg
>> 8);
413 return 0x00; /* Arbitrary */
415 err
= i2c_smbus_read_byte_data(client
, reg
& 0xff);
417 dev_err(&client
->dev
,
418 "Failed to read from register 0x%03x, err %d\n",
420 return 0x00; /* Arbitrary */
425 /* Must be called with data->update_lock held, except during initialization */
426 static int w83795_write(struct i2c_client
*client
, u16 reg
, u8 value
)
430 err
= w83795_set_bank(client
, reg
>> 8);
434 err
= i2c_smbus_write_byte_data(client
, reg
& 0xff, value
);
436 dev_err(&client
->dev
,
437 "Failed to write to register 0x%03x, err %d\n",
442 static void w83795_update_limits(struct i2c_client
*client
)
444 struct w83795_data
*data
= i2c_get_clientdata(client
);
447 /* Read the voltage limits */
448 for (i
= 0; i
< ARRAY_SIZE(data
->in
); i
++) {
449 if (!(data
->has_in
& (1 << i
)))
451 data
->in
[i
][IN_MAX
] =
452 w83795_read(client
, W83795_REG_IN
[i
][IN_MAX
]);
453 data
->in
[i
][IN_LOW
] =
454 w83795_read(client
, W83795_REG_IN
[i
][IN_LOW
]);
456 for (i
= 0; i
< ARRAY_SIZE(data
->in_lsb
); i
++) {
457 if ((i
== 2 && data
->chip_type
== w83795adg
) ||
458 (i
>= 4 && !(data
->has_in
& (1 << (i
+ 11)))))
460 data
->in_lsb
[i
][IN_MAX
] =
461 w83795_read(client
, IN_LSB_REG(i
, IN_MAX
));
462 data
->in_lsb
[i
][IN_LOW
] =
463 w83795_read(client
, IN_LSB_REG(i
, IN_LOW
));
466 /* Read the fan limits */
467 for (i
= 0; i
< ARRAY_SIZE(data
->fan
); i
++) {
470 /* Each register contains LSB for 2 fans, but we want to
471 * read it only once to save time */
472 if ((i
& 1) == 0 && (data
->has_fan
& (3 << i
)))
473 lsb
= w83795_read(client
, W83795_REG_FAN_MIN_LSB(i
));
475 if (!(data
->has_fan
& (1 << i
)))
478 w83795_read(client
, W83795_REG_FAN_MIN_HL(i
)) << 4;
480 (lsb
>> W83795_REG_FAN_MIN_LSB_SHIFT(i
)) & 0x0F;
483 /* Read the temperature limits */
484 for (i
= 0; i
< ARRAY_SIZE(data
->temp
); i
++) {
485 if (!(data
->has_temp
& (1 << i
)))
487 for (limit
= TEMP_CRIT
; limit
<= TEMP_WARN_HYST
; limit
++)
488 data
->temp
[i
][limit
] =
489 w83795_read(client
, W83795_REG_TEMP
[i
][limit
]);
492 /* Read the DTS limits */
493 if (data
->enable_dts
!= 0) {
494 for (limit
= DTS_CRIT
; limit
<= DTS_WARN_HYST
; limit
++)
495 data
->dts_ext
[limit
] =
496 w83795_read(client
, W83795_REG_DTS_EXT(limit
));
499 /* Read beep settings */
500 for (i
= 0; i
< ARRAY_SIZE(data
->beeps
); i
++)
501 data
->beeps
[i
] = w83795_read(client
, W83795_REG_BEEP(i
));
503 data
->valid_limits
= 1;
506 static void w83795_update_pwm_config(struct i2c_client
*client
)
508 struct w83795_data
*data
= i2c_get_clientdata(client
);
511 /* Read temperature source selection */
512 for (i
= 0; i
< ARRAY_SIZE(data
->temp_src
); i
++)
513 data
->temp_src
[i
] = w83795_read(client
, W83795_REG_TSS(i
));
515 /* Read automatic fan speed control settings */
516 data
->pwm_fcms
[0] = w83795_read(client
, W83795_REG_FCMS1
);
517 data
->pwm_fcms
[1] = w83795_read(client
, W83795_REG_FCMS2
);
518 for (i
= 0; i
< ARRAY_SIZE(data
->pwm_tfmr
); i
++)
519 data
->pwm_tfmr
[i
] = w83795_read(client
, W83795_REG_TFMR(i
));
520 data
->pwm_fomc
= w83795_read(client
, W83795_REG_FOMC
);
521 for (i
= 0; i
< data
->has_pwm
; i
++) {
522 for (tmp
= PWM_FREQ
; tmp
<= PWM_STOP_TIME
; tmp
++)
524 w83795_read(client
, W83795_REG_PWM(i
, tmp
));
526 for (i
= 0; i
< ARRAY_SIZE(data
->target_speed
); i
++) {
527 data
->target_speed
[i
] =
528 w83795_read(client
, W83795_REG_FTSH(i
)) << 4;
529 data
->target_speed
[i
] |=
530 w83795_read(client
, W83795_REG_FTSL(i
)) >> 4;
532 data
->tol_speed
= w83795_read(client
, W83795_REG_TFTS
) & 0x3f;
534 for (i
= 0; i
< ARRAY_SIZE(data
->pwm_temp
); i
++) {
535 data
->pwm_temp
[i
][TEMP_PWM_TTTI
] =
536 w83795_read(client
, W83795_REG_TTTI(i
)) & 0x7f;
537 data
->pwm_temp
[i
][TEMP_PWM_CTFS
] =
538 w83795_read(client
, W83795_REG_CTFS(i
));
539 tmp
= w83795_read(client
, W83795_REG_HT(i
));
540 data
->pwm_temp
[i
][TEMP_PWM_HCT
] = (tmp
>> 4) & 0x0f;
541 data
->pwm_temp
[i
][TEMP_PWM_HOT
] = tmp
& 0x0f;
544 /* Read SmartFanIV trip points */
545 for (i
= 0; i
< ARRAY_SIZE(data
->sf4_reg
); i
++) {
546 for (tmp
= 0; tmp
< 7; tmp
++) {
547 data
->sf4_reg
[i
][SF4_TEMP
][tmp
] =
549 W83795_REG_SF4_TEMP(i
, tmp
));
550 data
->sf4_reg
[i
][SF4_PWM
][tmp
] =
551 w83795_read(client
, W83795_REG_SF4_PWM(i
, tmp
));
556 for (i
= 0; i
< ARRAY_SIZE(data
->setup_pwm
); i
++)
558 w83795_read(client
, W83795_REG_SETUP_PWM(i
));
561 static struct w83795_data
*w83795_update_device(struct device
*dev
)
563 struct i2c_client
*client
= to_i2c_client(dev
);
564 struct w83795_data
*data
= i2c_get_clientdata(client
);
568 mutex_lock(&data
->update_lock
);
570 if (!data
->valid_limits
)
571 w83795_update_limits(client
);
573 if (!(time_after(jiffies
, data
->last_updated
+ HZ
* 2)
577 /* Update the voltages value */
578 for (i
= 0; i
< ARRAY_SIZE(data
->in
); i
++) {
579 if (!(data
->has_in
& (1 << i
)))
581 tmp
= w83795_read(client
, W83795_REG_IN
[i
][IN_READ
]) << 2;
582 tmp
|= w83795_read(client
, W83795_REG_VRLSB
) >> 6;
583 data
->in
[i
][IN_READ
] = tmp
;
586 /* in0-2 can have dynamic limits (W83795G only) */
587 if (data
->has_dyn_in
) {
588 u8 lsb_max
= w83795_read(client
, IN_LSB_REG(0, IN_MAX
));
589 u8 lsb_low
= w83795_read(client
, IN_LSB_REG(0, IN_LOW
));
591 for (i
= 0; i
< 3; i
++) {
592 if (!(data
->has_dyn_in
& (1 << i
)))
594 data
->in
[i
][IN_MAX
] =
595 w83795_read(client
, W83795_REG_IN
[i
][IN_MAX
]);
596 data
->in
[i
][IN_LOW
] =
597 w83795_read(client
, W83795_REG_IN
[i
][IN_LOW
]);
598 data
->in_lsb
[i
][IN_MAX
] = (lsb_max
>> (2 * i
)) & 0x03;
599 data
->in_lsb
[i
][IN_LOW
] = (lsb_low
>> (2 * i
)) & 0x03;
604 for (i
= 0; i
< ARRAY_SIZE(data
->fan
); i
++) {
605 if (!(data
->has_fan
& (1 << i
)))
607 data
->fan
[i
] = w83795_read(client
, W83795_REG_FAN(i
)) << 4;
609 (w83795_read(client
, W83795_REG_VRLSB
) >> 4) & 0x0F;
612 /* Update temperature */
613 for (i
= 0; i
< ARRAY_SIZE(data
->temp
); i
++) {
614 data
->temp
[i
][TEMP_READ
] =
615 w83795_read(client
, W83795_REG_TEMP
[i
][TEMP_READ
]);
616 data
->temp_read_vrlsb
[i
] =
617 w83795_read(client
, W83795_REG_VRLSB
);
620 /* Update dts temperature */
621 if (data
->enable_dts
!= 0) {
622 for (i
= 0; i
< ARRAY_SIZE(data
->dts
); i
++) {
623 if (!(data
->has_dts
& (1 << i
)))
626 w83795_read(client
, W83795_REG_DTS(i
));
627 data
->dts_read_vrlsb
[i
] =
628 w83795_read(client
, W83795_REG_VRLSB
);
632 /* Update pwm output */
633 for (i
= 0; i
< data
->has_pwm
; i
++) {
634 data
->pwm
[i
][PWM_OUTPUT
] =
635 w83795_read(client
, W83795_REG_PWM(i
, PWM_OUTPUT
));
639 for (i
= 0; i
< ARRAY_SIZE(data
->alarms
); i
++)
640 data
->alarms
[i
] = w83795_read(client
, W83795_REG_ALARM(i
));
642 data
->last_updated
= jiffies
;
646 mutex_unlock(&data
->update_lock
);
654 #define ALARM_STATUS 0
655 #define BEEP_ENABLE 1
657 show_alarm_beep(struct device
*dev
, struct device_attribute
*attr
, char *buf
)
659 struct w83795_data
*data
= w83795_update_device(dev
);
660 struct sensor_device_attribute_2
*sensor_attr
=
661 to_sensor_dev_attr_2(attr
);
662 int nr
= sensor_attr
->nr
;
663 int index
= sensor_attr
->index
>> 3;
664 int bit
= sensor_attr
->index
& 0x07;
667 if (ALARM_STATUS
== nr
) {
668 val
= (data
->alarms
[index
] >> (bit
)) & 1;
669 } else { /* BEEP_ENABLE */
670 val
= (data
->beeps
[index
] >> (bit
)) & 1;
673 return sprintf(buf
, "%u\n", val
);
677 store_beep(struct device
*dev
, struct device_attribute
*attr
,
678 const char *buf
, size_t count
)
680 struct i2c_client
*client
= to_i2c_client(dev
);
681 struct w83795_data
*data
= i2c_get_clientdata(client
);
682 struct sensor_device_attribute_2
*sensor_attr
=
683 to_sensor_dev_attr_2(attr
);
684 int index
= sensor_attr
->index
>> 3;
685 int shift
= sensor_attr
->index
& 0x07;
686 u8 beep_bit
= 1 << shift
;
689 if (strict_strtoul(buf
, 10, &val
) < 0)
691 if (val
!= 0 && val
!= 1)
694 mutex_lock(&data
->update_lock
);
695 data
->beeps
[index
] = w83795_read(client
, W83795_REG_BEEP(index
));
696 data
->beeps
[index
] &= ~beep_bit
;
697 data
->beeps
[index
] |= val
<< shift
;
698 w83795_write(client
, W83795_REG_BEEP(index
), data
->beeps
[index
]);
699 mutex_unlock(&data
->update_lock
);
704 /* Write any value to clear chassis alarm */
706 store_chassis_clear(struct device
*dev
,
707 struct device_attribute
*attr
, const char *buf
,
710 struct i2c_client
*client
= to_i2c_client(dev
);
711 struct w83795_data
*data
= i2c_get_clientdata(client
);
714 mutex_lock(&data
->update_lock
);
715 val
= w83795_read(client
, W83795_REG_CLR_CHASSIS
);
717 w83795_write(client
, W83795_REG_CLR_CHASSIS
, val
);
718 mutex_unlock(&data
->update_lock
);
725 show_fan(struct device
*dev
, struct device_attribute
*attr
, char *buf
)
727 struct sensor_device_attribute_2
*sensor_attr
=
728 to_sensor_dev_attr_2(attr
);
729 int nr
= sensor_attr
->nr
;
730 int index
= sensor_attr
->index
;
731 struct w83795_data
*data
= w83795_update_device(dev
);
735 val
= data
->fan
[index
] & 0x0fff;
737 val
= data
->fan_min
[index
] & 0x0fff;
739 return sprintf(buf
, "%lu\n", fan_from_reg(val
));
743 store_fan_min(struct device
*dev
, struct device_attribute
*attr
,
744 const char *buf
, size_t count
)
746 struct sensor_device_attribute_2
*sensor_attr
=
747 to_sensor_dev_attr_2(attr
);
748 int index
= sensor_attr
->index
;
749 struct i2c_client
*client
= to_i2c_client(dev
);
750 struct w83795_data
*data
= i2c_get_clientdata(client
);
753 if (strict_strtoul(buf
, 10, &val
))
755 val
= fan_to_reg(val
);
757 mutex_lock(&data
->update_lock
);
758 data
->fan_min
[index
] = val
;
759 w83795_write(client
, W83795_REG_FAN_MIN_HL(index
), (val
>> 4) & 0xff);
763 val
|= w83795_read(client
, W83795_REG_FAN_MIN_LSB(index
))
766 val
|= w83795_read(client
, W83795_REG_FAN_MIN_LSB(index
))
769 w83795_write(client
, W83795_REG_FAN_MIN_LSB(index
), val
& 0xff);
770 mutex_unlock(&data
->update_lock
);
776 show_pwm(struct device
*dev
, struct device_attribute
*attr
, char *buf
)
778 struct w83795_data
*data
= w83795_update_device(dev
);
779 struct sensor_device_attribute_2
*sensor_attr
=
780 to_sensor_dev_attr_2(attr
);
781 int nr
= sensor_attr
->nr
;
782 int index
= sensor_attr
->index
;
787 val
= time_from_reg(data
->pwm
[index
][nr
]);
790 val
= pwm_freq_from_reg(data
->pwm
[index
][nr
], data
->clkin
);
793 val
= data
->pwm
[index
][nr
];
797 return sprintf(buf
, "%u\n", val
);
801 store_pwm(struct device
*dev
, struct device_attribute
*attr
,
802 const char *buf
, size_t count
)
804 struct i2c_client
*client
= to_i2c_client(dev
);
805 struct w83795_data
*data
= i2c_get_clientdata(client
);
806 struct sensor_device_attribute_2
*sensor_attr
=
807 to_sensor_dev_attr_2(attr
);
808 int nr
= sensor_attr
->nr
;
809 int index
= sensor_attr
->index
;
812 if (strict_strtoul(buf
, 10, &val
) < 0)
815 mutex_lock(&data
->update_lock
);
818 val
= time_to_reg(val
);
821 val
= pwm_freq_to_reg(val
, data
->clkin
);
824 val
= SENSORS_LIMIT(val
, 0, 0xff);
827 w83795_write(client
, W83795_REG_PWM(index
, nr
), val
);
828 data
->pwm
[index
][nr
] = val
;
829 mutex_unlock(&data
->update_lock
);
834 show_pwm_enable(struct device
*dev
, struct device_attribute
*attr
, char *buf
)
836 struct sensor_device_attribute_2
*sensor_attr
=
837 to_sensor_dev_attr_2(attr
);
838 struct i2c_client
*client
= to_i2c_client(dev
);
839 struct w83795_data
*data
= i2c_get_clientdata(client
);
840 int index
= sensor_attr
->index
;
843 if (1 == (data
->pwm_fcms
[0] & (1 << index
))) {
847 for (tmp
= 0; tmp
< 6; tmp
++) {
848 if (data
->pwm_tfmr
[tmp
] & (1 << index
)) {
853 if (data
->pwm_fomc
& (1 << index
))
859 return sprintf(buf
, "%u\n", tmp
);
863 store_pwm_enable(struct device
*dev
, struct device_attribute
*attr
,
864 const char *buf
, size_t count
)
866 struct i2c_client
*client
= to_i2c_client(dev
);
867 struct w83795_data
*data
= i2c_get_clientdata(client
);
868 struct sensor_device_attribute_2
*sensor_attr
=
869 to_sensor_dev_attr_2(attr
);
870 int index
= sensor_attr
->index
;
874 if (strict_strtoul(buf
, 10, &val
) < 0)
879 mutex_lock(&data
->update_lock
);
883 data
->pwm_fcms
[0] &= ~(1 << index
);
884 w83795_write(client
, W83795_REG_FCMS1
, data
->pwm_fcms
[0]);
885 for (i
= 0; i
< 6; i
++) {
886 data
->pwm_tfmr
[i
] &= ~(1 << index
);
887 w83795_write(client
, W83795_REG_TFMR(i
),
890 data
->pwm_fomc
|= 1 << index
;
891 data
->pwm_fomc
^= val
<< index
;
892 w83795_write(client
, W83795_REG_FOMC
, data
->pwm_fomc
);
895 data
->pwm_fcms
[0] |= (1 << index
);
896 w83795_write(client
, W83795_REG_FCMS1
, data
->pwm_fcms
[0]);
899 mutex_unlock(&data
->update_lock
);
904 show_temp_src(struct device
*dev
, struct device_attribute
*attr
, char *buf
)
906 struct sensor_device_attribute_2
*sensor_attr
=
907 to_sensor_dev_attr_2(attr
);
908 struct i2c_client
*client
= to_i2c_client(dev
);
909 struct w83795_data
*data
= i2c_get_clientdata(client
);
910 int index
= sensor_attr
->index
;
912 u8 tmp
= data
->temp_src
[val
];
921 return sprintf(buf
, "%u\n", tmp
);
925 store_temp_src(struct device
*dev
, struct device_attribute
*attr
,
926 const char *buf
, size_t count
)
928 struct i2c_client
*client
= to_i2c_client(dev
);
929 struct w83795_data
*data
= i2c_get_clientdata(client
);
930 struct sensor_device_attribute_2
*sensor_attr
=
931 to_sensor_dev_attr_2(attr
);
932 int index
= sensor_attr
->index
;
936 if (strict_strtoul(buf
, 10, &tmp
) < 0)
938 tmp
= SENSORS_LIMIT(tmp
, 0, 15);
940 mutex_lock(&data
->update_lock
);
943 data
->temp_src
[val
] &= 0x0f;
945 data
->temp_src
[val
] &= 0xf0;
947 data
->temp_src
[val
] |= tmp
;
948 w83795_write(client
, W83795_REG_TSS(val
), data
->temp_src
[val
]);
949 mutex_unlock(&data
->update_lock
);
954 #define TEMP_PWM_ENABLE 0
955 #define TEMP_PWM_FAN_MAP 1
957 show_temp_pwm_enable(struct device
*dev
, struct device_attribute
*attr
,
960 struct i2c_client
*client
= to_i2c_client(dev
);
961 struct w83795_data
*data
= i2c_get_clientdata(client
);
962 struct sensor_device_attribute_2
*sensor_attr
=
963 to_sensor_dev_attr_2(attr
);
964 int nr
= sensor_attr
->nr
;
965 int index
= sensor_attr
->index
;
969 case TEMP_PWM_ENABLE
:
970 tmp
= (data
->pwm_fcms
[1] >> index
) & 1;
976 case TEMP_PWM_FAN_MAP
:
977 tmp
= data
->pwm_tfmr
[index
];
981 return sprintf(buf
, "%u\n", tmp
);
985 store_temp_pwm_enable(struct device
*dev
, struct device_attribute
*attr
,
986 const char *buf
, size_t count
)
988 struct i2c_client
*client
= to_i2c_client(dev
);
989 struct w83795_data
*data
= i2c_get_clientdata(client
);
990 struct sensor_device_attribute_2
*sensor_attr
=
991 to_sensor_dev_attr_2(attr
);
992 int nr
= sensor_attr
->nr
;
993 int index
= sensor_attr
->index
;
996 if (strict_strtoul(buf
, 10, &tmp
) < 0)
1000 case TEMP_PWM_ENABLE
:
1001 if ((tmp
!= 3) && (tmp
!= 4))
1004 mutex_lock(&data
->update_lock
);
1005 data
->pwm_fcms
[1] &= ~(1 << index
);
1006 data
->pwm_fcms
[1] |= tmp
<< index
;
1007 w83795_write(client
, W83795_REG_FCMS2
, data
->pwm_fcms
[1]);
1008 mutex_unlock(&data
->update_lock
);
1010 case TEMP_PWM_FAN_MAP
:
1011 mutex_lock(&data
->update_lock
);
1012 tmp
= SENSORS_LIMIT(tmp
, 0, 0xff);
1013 w83795_write(client
, W83795_REG_TFMR(index
), tmp
);
1014 data
->pwm_tfmr
[index
] = tmp
;
1015 mutex_unlock(&data
->update_lock
);
1021 #define FANIN_TARGET 0
1024 show_fanin(struct device
*dev
, struct device_attribute
*attr
, char *buf
)
1026 struct i2c_client
*client
= to_i2c_client(dev
);
1027 struct w83795_data
*data
= i2c_get_clientdata(client
);
1028 struct sensor_device_attribute_2
*sensor_attr
=
1029 to_sensor_dev_attr_2(attr
);
1030 int nr
= sensor_attr
->nr
;
1031 int index
= sensor_attr
->index
;
1036 tmp
= fan_from_reg(data
->target_speed
[index
]);
1039 tmp
= data
->tol_speed
;
1043 return sprintf(buf
, "%u\n", tmp
);
1047 store_fanin(struct device
*dev
, struct device_attribute
*attr
,
1048 const char *buf
, size_t count
)
1050 struct i2c_client
*client
= to_i2c_client(dev
);
1051 struct w83795_data
*data
= i2c_get_clientdata(client
);
1052 struct sensor_device_attribute_2
*sensor_attr
=
1053 to_sensor_dev_attr_2(attr
);
1054 int nr
= sensor_attr
->nr
;
1055 int index
= sensor_attr
->index
;
1058 if (strict_strtoul(buf
, 10, &val
) < 0)
1061 mutex_lock(&data
->update_lock
);
1064 val
= fan_to_reg(SENSORS_LIMIT(val
, 0, 0xfff));
1065 w83795_write(client
, W83795_REG_FTSH(index
), (val
>> 4) & 0xff);
1066 w83795_write(client
, W83795_REG_FTSL(index
), (val
<< 4) & 0xf0);
1067 data
->target_speed
[index
] = val
;
1070 val
= SENSORS_LIMIT(val
, 0, 0x3f);
1071 w83795_write(client
, W83795_REG_TFTS
, val
);
1072 data
->tol_speed
= val
;
1075 mutex_unlock(&data
->update_lock
);
1082 show_temp_pwm(struct device
*dev
, struct device_attribute
*attr
, char *buf
)
1084 struct i2c_client
*client
= to_i2c_client(dev
);
1085 struct w83795_data
*data
= i2c_get_clientdata(client
);
1086 struct sensor_device_attribute_2
*sensor_attr
=
1087 to_sensor_dev_attr_2(attr
);
1088 int nr
= sensor_attr
->nr
;
1089 int index
= sensor_attr
->index
;
1090 long tmp
= temp_from_reg(data
->pwm_temp
[index
][nr
]);
1092 return sprintf(buf
, "%ld\n", tmp
);
1096 store_temp_pwm(struct device
*dev
, struct device_attribute
*attr
,
1097 const char *buf
, size_t count
)
1099 struct i2c_client
*client
= to_i2c_client(dev
);
1100 struct w83795_data
*data
= i2c_get_clientdata(client
);
1101 struct sensor_device_attribute_2
*sensor_attr
=
1102 to_sensor_dev_attr_2(attr
);
1103 int nr
= sensor_attr
->nr
;
1104 int index
= sensor_attr
->index
;
1108 if (strict_strtoul(buf
, 10, &val
) < 0)
1112 mutex_lock(&data
->update_lock
);
1115 val
= SENSORS_LIMIT(val
, 0, 0x7f);
1116 w83795_write(client
, W83795_REG_TTTI(index
), val
);
1119 val
= SENSORS_LIMIT(val
, 0, 0x7f);
1120 w83795_write(client
, W83795_REG_CTFS(index
), val
);
1123 val
= SENSORS_LIMIT(val
, 0, 0x0f);
1124 tmp
= w83795_read(client
, W83795_REG_HT(index
));
1126 tmp
|= (val
<< 4) & 0xf0;
1127 w83795_write(client
, W83795_REG_HT(index
), tmp
);
1130 val
= SENSORS_LIMIT(val
, 0, 0x0f);
1131 tmp
= w83795_read(client
, W83795_REG_HT(index
));
1134 w83795_write(client
, W83795_REG_HT(index
), tmp
);
1137 data
->pwm_temp
[index
][nr
] = val
;
1138 mutex_unlock(&data
->update_lock
);
1144 show_sf4_pwm(struct device
*dev
, struct device_attribute
*attr
, char *buf
)
1146 struct i2c_client
*client
= to_i2c_client(dev
);
1147 struct w83795_data
*data
= i2c_get_clientdata(client
);
1148 struct sensor_device_attribute_2
*sensor_attr
=
1149 to_sensor_dev_attr_2(attr
);
1150 int nr
= sensor_attr
->nr
;
1151 int index
= sensor_attr
->index
;
1153 return sprintf(buf
, "%u\n", data
->sf4_reg
[index
][SF4_PWM
][nr
]);
1157 store_sf4_pwm(struct device
*dev
, struct device_attribute
*attr
,
1158 const char *buf
, size_t count
)
1160 struct i2c_client
*client
= to_i2c_client(dev
);
1161 struct w83795_data
*data
= i2c_get_clientdata(client
);
1162 struct sensor_device_attribute_2
*sensor_attr
=
1163 to_sensor_dev_attr_2(attr
);
1164 int nr
= sensor_attr
->nr
;
1165 int index
= sensor_attr
->index
;
1168 if (strict_strtoul(buf
, 10, &val
) < 0)
1171 mutex_lock(&data
->update_lock
);
1172 w83795_write(client
, W83795_REG_SF4_PWM(index
, nr
), val
);
1173 data
->sf4_reg
[index
][SF4_PWM
][nr
] = val
;
1174 mutex_unlock(&data
->update_lock
);
1180 show_sf4_temp(struct device
*dev
, struct device_attribute
*attr
, char *buf
)
1182 struct i2c_client
*client
= to_i2c_client(dev
);
1183 struct w83795_data
*data
= i2c_get_clientdata(client
);
1184 struct sensor_device_attribute_2
*sensor_attr
=
1185 to_sensor_dev_attr_2(attr
);
1186 int nr
= sensor_attr
->nr
;
1187 int index
= sensor_attr
->index
;
1189 return sprintf(buf
, "%u\n",
1190 (data
->sf4_reg
[index
][SF4_TEMP
][nr
]) * 1000);
1194 store_sf4_temp(struct device
*dev
, struct device_attribute
*attr
,
1195 const char *buf
, size_t count
)
1197 struct i2c_client
*client
= to_i2c_client(dev
);
1198 struct w83795_data
*data
= i2c_get_clientdata(client
);
1199 struct sensor_device_attribute_2
*sensor_attr
=
1200 to_sensor_dev_attr_2(attr
);
1201 int nr
= sensor_attr
->nr
;
1202 int index
= sensor_attr
->index
;
1205 if (strict_strtoul(buf
, 10, &val
) < 0)
1209 mutex_lock(&data
->update_lock
);
1210 w83795_write(client
, W83795_REG_SF4_TEMP(index
, nr
), val
);
1211 data
->sf4_reg
[index
][SF4_TEMP
][nr
] = val
;
1212 mutex_unlock(&data
->update_lock
);
1219 show_temp(struct device
*dev
, struct device_attribute
*attr
, char *buf
)
1221 struct sensor_device_attribute_2
*sensor_attr
=
1222 to_sensor_dev_attr_2(attr
);
1223 int nr
= sensor_attr
->nr
;
1224 int index
= sensor_attr
->index
;
1225 struct w83795_data
*data
= w83795_update_device(dev
);
1226 long temp
= temp_from_reg(data
->temp
[index
][nr
]);
1228 if (TEMP_READ
== nr
)
1229 temp
+= (data
->temp_read_vrlsb
[index
] >> 6) * 250;
1230 return sprintf(buf
, "%ld\n", temp
);
1234 store_temp(struct device
*dev
, struct device_attribute
*attr
,
1235 const char *buf
, size_t count
)
1237 struct sensor_device_attribute_2
*sensor_attr
=
1238 to_sensor_dev_attr_2(attr
);
1239 int nr
= sensor_attr
->nr
;
1240 int index
= sensor_attr
->index
;
1241 struct i2c_client
*client
= to_i2c_client(dev
);
1242 struct w83795_data
*data
= i2c_get_clientdata(client
);
1245 if (strict_strtol(buf
, 10, &tmp
) < 0)
1248 mutex_lock(&data
->update_lock
);
1249 data
->temp
[index
][nr
] = temp_to_reg(tmp
, -128, 127);
1250 w83795_write(client
, W83795_REG_TEMP
[index
][nr
], data
->temp
[index
][nr
]);
1251 mutex_unlock(&data
->update_lock
);
1257 show_dts_mode(struct device
*dev
, struct device_attribute
*attr
, char *buf
)
1259 struct i2c_client
*client
= to_i2c_client(dev
);
1260 struct w83795_data
*data
= i2c_get_clientdata(client
);
1263 if (data
->enable_dts
& 2)
1268 return sprintf(buf
, "%d\n", tmp
);
1272 show_dts(struct device
*dev
, struct device_attribute
*attr
, char *buf
)
1274 struct sensor_device_attribute_2
*sensor_attr
=
1275 to_sensor_dev_attr_2(attr
);
1276 int index
= sensor_attr
->index
;
1277 struct w83795_data
*data
= w83795_update_device(dev
);
1278 long temp
= temp_from_reg(data
->dts
[index
]);
1280 temp
+= (data
->dts_read_vrlsb
[index
] >> 6) * 250;
1281 return sprintf(buf
, "%ld\n", temp
);
1285 show_dts_ext(struct device
*dev
, struct device_attribute
*attr
, char *buf
)
1287 struct sensor_device_attribute_2
*sensor_attr
=
1288 to_sensor_dev_attr_2(attr
);
1289 int nr
= sensor_attr
->nr
;
1290 struct i2c_client
*client
= to_i2c_client(dev
);
1291 struct w83795_data
*data
= i2c_get_clientdata(client
);
1292 long temp
= temp_from_reg(data
->dts_ext
[nr
]);
1294 return sprintf(buf
, "%ld\n", temp
);
1298 store_dts_ext(struct device
*dev
, struct device_attribute
*attr
,
1299 const char *buf
, size_t count
)
1301 struct sensor_device_attribute_2
*sensor_attr
=
1302 to_sensor_dev_attr_2(attr
);
1303 int nr
= sensor_attr
->nr
;
1304 struct i2c_client
*client
= to_i2c_client(dev
);
1305 struct w83795_data
*data
= i2c_get_clientdata(client
);
1308 if (strict_strtol(buf
, 10, &tmp
) < 0)
1311 mutex_lock(&data
->update_lock
);
1312 data
->dts_ext
[nr
] = temp_to_reg(tmp
, -128, 127);
1313 w83795_write(client
, W83795_REG_DTS_EXT(nr
), data
->dts_ext
[nr
]);
1314 mutex_unlock(&data
->update_lock
);
1320 show_temp_mode(struct device
*dev
, struct device_attribute
*attr
, char *buf
)
1322 struct i2c_client
*client
= to_i2c_client(dev
);
1323 struct w83795_data
*data
= i2c_get_clientdata(client
);
1324 struct sensor_device_attribute_2
*sensor_attr
=
1325 to_sensor_dev_attr_2(attr
);
1326 int index
= sensor_attr
->index
;
1329 if (data
->temp_mode
& (1 << index
))
1330 tmp
= 3; /* Thermal diode */
1332 tmp
= 4; /* Thermistor */
1334 return sprintf(buf
, "%d\n", tmp
);
1337 /* Only for temp1-4 (temp5-6 can only be thermistor) */
1339 store_temp_mode(struct device
*dev
, struct device_attribute
*attr
,
1340 const char *buf
, size_t count
)
1342 struct i2c_client
*client
= to_i2c_client(dev
);
1343 struct w83795_data
*data
= i2c_get_clientdata(client
);
1344 struct sensor_device_attribute_2
*sensor_attr
=
1345 to_sensor_dev_attr_2(attr
);
1346 int index
= sensor_attr
->index
;
1351 if (strict_strtoul(buf
, 10, &val
) < 0)
1353 if ((val
!= 4) && (val
!= 3))
1356 mutex_lock(&data
->update_lock
);
1360 data
->temp_mode
|= 1 << index
;
1361 } else if (val
== 4) {
1364 data
->temp_mode
&= ~(1 << index
);
1367 reg_shift
= 2 * index
;
1368 tmp
= w83795_read(client
, W83795_REG_TEMP_CTRL2
);
1369 tmp
&= ~(0x03 << reg_shift
);
1370 tmp
|= val
<< reg_shift
;
1371 w83795_write(client
, W83795_REG_TEMP_CTRL2
, tmp
);
1373 mutex_unlock(&data
->update_lock
);
1378 /* show/store VIN */
1380 show_in(struct device
*dev
, struct device_attribute
*attr
, char *buf
)
1382 struct sensor_device_attribute_2
*sensor_attr
=
1383 to_sensor_dev_attr_2(attr
);
1384 int nr
= sensor_attr
->nr
;
1385 int index
= sensor_attr
->index
;
1386 struct w83795_data
*data
= w83795_update_device(dev
);
1387 u16 val
= data
->in
[index
][nr
];
1392 /* calculate this value again by sensors as sensors3.conf */
1393 if ((index
>= 17) &&
1394 !((data
->has_gain
>> (index
- 17)) & 1))
1399 lsb_idx
= IN_LSB_SHIFT_IDX
[index
][IN_LSB_IDX
];
1401 val
|= (data
->in_lsb
[lsb_idx
][nr
] >>
1402 IN_LSB_SHIFT_IDX
[lsb_idx
][IN_LSB_SHIFT
]) & 0x03;
1403 if ((index
>= 17) &&
1404 !((data
->has_gain
>> (index
- 17)) & 1))
1408 val
= in_from_reg(index
, val
);
1410 return sprintf(buf
, "%d\n", val
);
1414 store_in(struct device
*dev
, struct device_attribute
*attr
,
1415 const char *buf
, size_t count
)
1417 struct sensor_device_attribute_2
*sensor_attr
=
1418 to_sensor_dev_attr_2(attr
);
1419 int nr
= sensor_attr
->nr
;
1420 int index
= sensor_attr
->index
;
1421 struct i2c_client
*client
= to_i2c_client(dev
);
1422 struct w83795_data
*data
= i2c_get_clientdata(client
);
1427 if (strict_strtoul(buf
, 10, &val
) < 0)
1429 val
= in_to_reg(index
, val
);
1431 if ((index
>= 17) &&
1432 !((data
->has_gain
>> (index
- 17)) & 1))
1434 val
= SENSORS_LIMIT(val
, 0, 0x3FF);
1435 mutex_lock(&data
->update_lock
);
1437 lsb_idx
= IN_LSB_SHIFT_IDX
[index
][IN_LSB_IDX
];
1438 tmp
= w83795_read(client
, IN_LSB_REG(lsb_idx
, nr
));
1439 tmp
&= ~(0x03 << IN_LSB_SHIFT_IDX
[index
][IN_LSB_SHIFT
]);
1440 tmp
|= (val
& 0x03) << IN_LSB_SHIFT_IDX
[index
][IN_LSB_SHIFT
];
1441 w83795_write(client
, IN_LSB_REG(lsb_idx
, nr
), tmp
);
1442 data
->in_lsb
[lsb_idx
][nr
] = tmp
;
1444 tmp
= (val
>> 2) & 0xff;
1445 w83795_write(client
, W83795_REG_IN
[index
][nr
], tmp
);
1446 data
->in
[index
][nr
] = tmp
;
1448 mutex_unlock(&data
->update_lock
);
1454 show_sf_setup(struct device
*dev
, struct device_attribute
*attr
, char *buf
)
1456 struct sensor_device_attribute_2
*sensor_attr
=
1457 to_sensor_dev_attr_2(attr
);
1458 int nr
= sensor_attr
->nr
;
1459 struct i2c_client
*client
= to_i2c_client(dev
);
1460 struct w83795_data
*data
= i2c_get_clientdata(client
);
1461 u16 val
= data
->setup_pwm
[nr
];
1464 case SETUP_PWM_UPTIME
:
1465 case SETUP_PWM_DOWNTIME
:
1466 val
= time_from_reg(val
);
1470 return sprintf(buf
, "%d\n", val
);
1474 store_sf_setup(struct device
*dev
, struct device_attribute
*attr
,
1475 const char *buf
, size_t count
)
1477 struct sensor_device_attribute_2
*sensor_attr
=
1478 to_sensor_dev_attr_2(attr
);
1479 int nr
= sensor_attr
->nr
;
1480 struct i2c_client
*client
= to_i2c_client(dev
);
1481 struct w83795_data
*data
= i2c_get_clientdata(client
);
1484 if (strict_strtoul(buf
, 10, &val
) < 0)
1488 case SETUP_PWM_DEFAULT
:
1489 val
= SENSORS_LIMIT(val
, 0, 0xff);
1491 case SETUP_PWM_UPTIME
:
1492 case SETUP_PWM_DOWNTIME
:
1493 val
= time_to_reg(val
);
1499 mutex_lock(&data
->update_lock
);
1500 data
->setup_pwm
[nr
] = val
;
1501 w83795_write(client
, W83795_REG_SETUP_PWM(nr
), val
);
1502 mutex_unlock(&data
->update_lock
);
1509 /* Don't change the attribute order, _max and _min are accessed by index
1510 * somewhere else in the code */
1511 #define SENSOR_ATTR_IN(index) { \
1512 SENSOR_ATTR_2(in##index##_input, S_IRUGO, show_in, NULL, \
1514 SENSOR_ATTR_2(in##index##_max, S_IRUGO | S_IWUSR, show_in, \
1515 store_in, IN_MAX, index), \
1516 SENSOR_ATTR_2(in##index##_min, S_IRUGO | S_IWUSR, show_in, \
1517 store_in, IN_LOW, index), \
1518 SENSOR_ATTR_2(in##index##_alarm, S_IRUGO, show_alarm_beep, \
1519 NULL, ALARM_STATUS, index + ((index > 14) ? 1 : 0)), \
1520 SENSOR_ATTR_2(in##index##_beep, S_IWUSR | S_IRUGO, \
1521 show_alarm_beep, store_beep, BEEP_ENABLE, \
1522 index + ((index > 14) ? 1 : 0)) }
1524 #define SENSOR_ATTR_FAN(index) { \
1525 SENSOR_ATTR_2(fan##index##_input, S_IRUGO, show_fan, \
1526 NULL, FAN_INPUT, index - 1), \
1527 SENSOR_ATTR_2(fan##index##_min, S_IWUSR | S_IRUGO, \
1528 show_fan, store_fan_min, FAN_MIN, index - 1), \
1529 SENSOR_ATTR_2(fan##index##_alarm, S_IRUGO, show_alarm_beep, \
1530 NULL, ALARM_STATUS, index + 31), \
1531 SENSOR_ATTR_2(fan##index##_beep, S_IWUSR | S_IRUGO, \
1532 show_alarm_beep, store_beep, BEEP_ENABLE, index + 31) }
1534 #define SENSOR_ATTR_PWM(index) { \
1535 SENSOR_ATTR_2(pwm##index, S_IWUSR | S_IRUGO, show_pwm, \
1536 store_pwm, PWM_OUTPUT, index - 1), \
1537 SENSOR_ATTR_2(pwm##index##_nonstop, S_IWUSR | S_IRUGO, \
1538 show_pwm, store_pwm, PWM_NONSTOP, index - 1), \
1539 SENSOR_ATTR_2(pwm##index##_start, S_IWUSR | S_IRUGO, \
1540 show_pwm, store_pwm, PWM_START, index - 1), \
1541 SENSOR_ATTR_2(pwm##index##_stop_time, S_IWUSR | S_IRUGO, \
1542 show_pwm, store_pwm, PWM_STOP_TIME, index - 1), \
1543 SENSOR_ATTR_2(pwm##index##_freq, S_IWUSR | S_IRUGO, \
1544 show_pwm, store_pwm, PWM_FREQ, index - 1), \
1545 SENSOR_ATTR_2(pwm##index##_enable, S_IWUSR | S_IRUGO, \
1546 show_pwm_enable, store_pwm_enable, NOT_USED, index - 1), \
1547 SENSOR_ATTR_2(fan##index##_target, S_IWUSR | S_IRUGO, \
1548 show_fanin, store_fanin, FANIN_TARGET, index - 1) }
1550 #define SENSOR_ATTR_DTS(index) { \
1551 SENSOR_ATTR_2(temp##index##_type, S_IRUGO , \
1552 show_dts_mode, NULL, NOT_USED, index - 7), \
1553 SENSOR_ATTR_2(temp##index##_input, S_IRUGO, show_dts, \
1554 NULL, NOT_USED, index - 7), \
1555 SENSOR_ATTR_2(temp##index##_crit, S_IRUGO | S_IWUSR, show_dts_ext, \
1556 store_dts_ext, DTS_CRIT, NOT_USED), \
1557 SENSOR_ATTR_2(temp##index##_crit_hyst, S_IRUGO | S_IWUSR, \
1558 show_dts_ext, store_dts_ext, DTS_CRIT_HYST, NOT_USED), \
1559 SENSOR_ATTR_2(temp##index##_max, S_IRUGO | S_IWUSR, show_dts_ext, \
1560 store_dts_ext, DTS_WARN, NOT_USED), \
1561 SENSOR_ATTR_2(temp##index##_max_hyst, S_IRUGO | S_IWUSR, \
1562 show_dts_ext, store_dts_ext, DTS_WARN_HYST, NOT_USED), \
1563 SENSOR_ATTR_2(temp##index##_alarm, S_IRUGO, \
1564 show_alarm_beep, NULL, ALARM_STATUS, index + 17), \
1565 SENSOR_ATTR_2(temp##index##_beep, S_IWUSR | S_IRUGO, \
1566 show_alarm_beep, store_beep, BEEP_ENABLE, index + 17) }
1568 #define SENSOR_ATTR_TEMP(index) { \
1569 SENSOR_ATTR_2(temp##index##_type, S_IRUGO | (index < 4 ? S_IWUSR : 0), \
1570 show_temp_mode, store_temp_mode, NOT_USED, index - 1), \
1571 SENSOR_ATTR_2(temp##index##_input, S_IRUGO, show_temp, \
1572 NULL, TEMP_READ, index - 1), \
1573 SENSOR_ATTR_2(temp##index##_crit, S_IRUGO | S_IWUSR, show_temp, \
1574 store_temp, TEMP_CRIT, index - 1), \
1575 SENSOR_ATTR_2(temp##index##_crit_hyst, S_IRUGO | S_IWUSR, \
1576 show_temp, store_temp, TEMP_CRIT_HYST, index - 1), \
1577 SENSOR_ATTR_2(temp##index##_max, S_IRUGO | S_IWUSR, show_temp, \
1578 store_temp, TEMP_WARN, index - 1), \
1579 SENSOR_ATTR_2(temp##index##_max_hyst, S_IRUGO | S_IWUSR, \
1580 show_temp, store_temp, TEMP_WARN_HYST, index - 1), \
1581 SENSOR_ATTR_2(temp##index##_alarm, S_IRUGO, \
1582 show_alarm_beep, NULL, ALARM_STATUS, \
1583 index + (index > 4 ? 11 : 17)), \
1584 SENSOR_ATTR_2(temp##index##_beep, S_IWUSR | S_IRUGO, \
1585 show_alarm_beep, store_beep, BEEP_ENABLE, \
1586 index + (index > 4 ? 11 : 17)), \
1587 SENSOR_ATTR_2(temp##index##_source_sel, S_IWUSR | S_IRUGO, \
1588 show_temp_src, store_temp_src, NOT_USED, index - 1), \
1589 SENSOR_ATTR_2(temp##index##_pwm_enable, S_IWUSR | S_IRUGO, \
1590 show_temp_pwm_enable, store_temp_pwm_enable, \
1591 TEMP_PWM_ENABLE, index - 1), \
1592 SENSOR_ATTR_2(temp##index##_auto_channels_pwm, S_IWUSR | S_IRUGO, \
1593 show_temp_pwm_enable, store_temp_pwm_enable, \
1594 TEMP_PWM_FAN_MAP, index - 1), \
1595 SENSOR_ATTR_2(thermal_cruise##index, S_IWUSR | S_IRUGO, \
1596 show_temp_pwm, store_temp_pwm, TEMP_PWM_TTTI, index - 1), \
1597 SENSOR_ATTR_2(temp##index##_warn, S_IWUSR | S_IRUGO, \
1598 show_temp_pwm, store_temp_pwm, TEMP_PWM_CTFS, index - 1), \
1599 SENSOR_ATTR_2(temp##index##_warn_hyst, S_IWUSR | S_IRUGO, \
1600 show_temp_pwm, store_temp_pwm, TEMP_PWM_HCT, index - 1), \
1601 SENSOR_ATTR_2(temp##index##_operation_hyst, S_IWUSR | S_IRUGO, \
1602 show_temp_pwm, store_temp_pwm, TEMP_PWM_HOT, index - 1), \
1603 SENSOR_ATTR_2(temp##index##_auto_point1_pwm, S_IRUGO | S_IWUSR, \
1604 show_sf4_pwm, store_sf4_pwm, 0, index - 1), \
1605 SENSOR_ATTR_2(temp##index##_auto_point2_pwm, S_IRUGO | S_IWUSR, \
1606 show_sf4_pwm, store_sf4_pwm, 1, index - 1), \
1607 SENSOR_ATTR_2(temp##index##_auto_point3_pwm, S_IRUGO | S_IWUSR, \
1608 show_sf4_pwm, store_sf4_pwm, 2, index - 1), \
1609 SENSOR_ATTR_2(temp##index##_auto_point4_pwm, S_IRUGO | S_IWUSR, \
1610 show_sf4_pwm, store_sf4_pwm, 3, index - 1), \
1611 SENSOR_ATTR_2(temp##index##_auto_point5_pwm, S_IRUGO | S_IWUSR, \
1612 show_sf4_pwm, store_sf4_pwm, 4, index - 1), \
1613 SENSOR_ATTR_2(temp##index##_auto_point6_pwm, S_IRUGO | S_IWUSR, \
1614 show_sf4_pwm, store_sf4_pwm, 5, index - 1), \
1615 SENSOR_ATTR_2(temp##index##_auto_point7_pwm, S_IRUGO | S_IWUSR, \
1616 show_sf4_pwm, store_sf4_pwm, 6, index - 1), \
1617 SENSOR_ATTR_2(temp##index##_auto_point1_temp, S_IRUGO | S_IWUSR,\
1618 show_sf4_temp, store_sf4_temp, 0, index - 1), \
1619 SENSOR_ATTR_2(temp##index##_auto_point2_temp, S_IRUGO | S_IWUSR,\
1620 show_sf4_temp, store_sf4_temp, 1, index - 1), \
1621 SENSOR_ATTR_2(temp##index##_auto_point3_temp, S_IRUGO | S_IWUSR,\
1622 show_sf4_temp, store_sf4_temp, 2, index - 1), \
1623 SENSOR_ATTR_2(temp##index##_auto_point4_temp, S_IRUGO | S_IWUSR,\
1624 show_sf4_temp, store_sf4_temp, 3, index - 1), \
1625 SENSOR_ATTR_2(temp##index##_auto_point5_temp, S_IRUGO | S_IWUSR,\
1626 show_sf4_temp, store_sf4_temp, 4, index - 1), \
1627 SENSOR_ATTR_2(temp##index##_auto_point6_temp, S_IRUGO | S_IWUSR,\
1628 show_sf4_temp, store_sf4_temp, 5, index - 1), \
1629 SENSOR_ATTR_2(temp##index##_auto_point7_temp, S_IRUGO | S_IWUSR,\
1630 show_sf4_temp, store_sf4_temp, 6, index - 1) }
1633 static struct sensor_device_attribute_2 w83795_in
[][5] = {
1657 static const struct sensor_device_attribute_2 w83795_fan
[][4] = {
1667 SENSOR_ATTR_FAN(10),
1668 SENSOR_ATTR_FAN(11),
1669 SENSOR_ATTR_FAN(12),
1670 SENSOR_ATTR_FAN(13),
1671 SENSOR_ATTR_FAN(14),
1674 static const struct sensor_device_attribute_2 w83795_temp
[][29] = {
1675 SENSOR_ATTR_TEMP(1),
1676 SENSOR_ATTR_TEMP(2),
1677 SENSOR_ATTR_TEMP(3),
1678 SENSOR_ATTR_TEMP(4),
1679 SENSOR_ATTR_TEMP(5),
1680 SENSOR_ATTR_TEMP(6),
1683 static const struct sensor_device_attribute_2 w83795_dts
[][8] = {
1687 SENSOR_ATTR_DTS(10),
1688 SENSOR_ATTR_DTS(11),
1689 SENSOR_ATTR_DTS(12),
1690 SENSOR_ATTR_DTS(13),
1691 SENSOR_ATTR_DTS(14),
1694 static const struct sensor_device_attribute_2 w83795_pwm
[][7] = {
1705 static const struct sensor_device_attribute_2 sda_single_files
[] = {
1706 SENSOR_ATTR_2(chassis
, S_IWUSR
| S_IRUGO
, show_alarm_beep
,
1707 store_chassis_clear
, ALARM_STATUS
, 46),
1708 SENSOR_ATTR_2(beep_enable
, S_IWUSR
| S_IRUGO
, show_alarm_beep
,
1709 store_beep
, BEEP_ENABLE
, 47),
1710 SENSOR_ATTR_2(speed_cruise_tolerance
, S_IWUSR
| S_IRUGO
, show_fanin
,
1711 store_fanin
, FANIN_TOL
, NOT_USED
),
1712 SENSOR_ATTR_2(pwm_default
, S_IWUSR
| S_IRUGO
, show_sf_setup
,
1713 store_sf_setup
, SETUP_PWM_DEFAULT
, NOT_USED
),
1714 SENSOR_ATTR_2(pwm_uptime
, S_IWUSR
| S_IRUGO
, show_sf_setup
,
1715 store_sf_setup
, SETUP_PWM_UPTIME
, NOT_USED
),
1716 SENSOR_ATTR_2(pwm_downtime
, S_IWUSR
| S_IRUGO
, show_sf_setup
,
1717 store_sf_setup
, SETUP_PWM_DOWNTIME
, NOT_USED
),
1724 static void w83795_init_client(struct i2c_client
*client
)
1726 struct w83795_data
*data
= i2c_get_clientdata(client
);
1727 static const u16 clkin
[4] = { /* in kHz */
1728 14318, 24000, 33333, 48000
1733 w83795_write(client
, W83795_REG_CONFIG
, 0x80);
1735 /* Start monitoring if needed */
1736 config
= w83795_read(client
, W83795_REG_CONFIG
);
1737 if (!(config
& W83795_REG_CONFIG_START
)) {
1738 dev_info(&client
->dev
, "Enabling monitoring operations\n");
1739 w83795_write(client
, W83795_REG_CONFIG
,
1740 config
| W83795_REG_CONFIG_START
);
1743 data
->clkin
= clkin
[(config
>> 3) & 0x3];
1744 dev_dbg(&client
->dev
, "clkin = %u kHz\n", data
->clkin
);
1747 static int w83795_get_device_id(struct i2c_client
*client
)
1751 device_id
= i2c_smbus_read_byte_data(client
, W83795_REG_DEVICEID
);
1753 /* Special case for rev. A chips; can't be checked first because later
1754 revisions emulate this for compatibility */
1755 if (device_id
< 0 || (device_id
& 0xf0) != 0x50) {
1758 alt_id
= i2c_smbus_read_byte_data(client
,
1759 W83795_REG_DEVICEID_A
);
1767 /* Return 0 if detection is successful, -ENODEV otherwise */
1768 static int w83795_detect(struct i2c_client
*client
,
1769 struct i2c_board_info
*info
)
1771 int bank
, vendor_id
, device_id
, expected
, i2c_addr
, config
;
1772 struct i2c_adapter
*adapter
= client
->adapter
;
1773 unsigned short address
= client
->addr
;
1774 const char *chip_name
;
1776 if (!i2c_check_functionality(adapter
, I2C_FUNC_SMBUS_BYTE_DATA
))
1778 bank
= i2c_smbus_read_byte_data(client
, W83795_REG_BANKSEL
);
1779 if (bank
< 0 || (bank
& 0x7c)) {
1780 dev_dbg(&adapter
->dev
,
1781 "w83795: Detection failed at addr 0x%02hx, check %s\n",
1786 /* Check Nuvoton vendor ID */
1787 vendor_id
= i2c_smbus_read_byte_data(client
, W83795_REG_VENDORID
);
1788 expected
= bank
& 0x80 ? 0x5c : 0xa3;
1789 if (vendor_id
!= expected
) {
1790 dev_dbg(&adapter
->dev
,
1791 "w83795: Detection failed at addr 0x%02hx, check %s\n",
1792 address
, "vendor id");
1796 /* Check device ID */
1797 device_id
= w83795_get_device_id(client
) |
1798 (i2c_smbus_read_byte_data(client
, W83795_REG_CHIPID
) << 8);
1799 if ((device_id
>> 4) != 0x795) {
1800 dev_dbg(&adapter
->dev
,
1801 "w83795: Detection failed at addr 0x%02hx, check %s\n",
1802 address
, "device id\n");
1806 /* If Nuvoton chip, address of chip and W83795_REG_I2C_ADDR
1808 if ((bank
& 0x07) == 0) {
1809 i2c_addr
= i2c_smbus_read_byte_data(client
,
1810 W83795_REG_I2C_ADDR
);
1811 if ((i2c_addr
& 0x7f) != address
) {
1812 dev_dbg(&adapter
->dev
,
1813 "w83795: Detection failed at addr 0x%02hx, "
1814 "check %s\n", address
, "i2c addr");
1819 /* Check 795 chip type: 795G or 795ADG
1820 Usually we don't write to chips during detection, but here we don't
1821 quite have the choice; hopefully it's OK, we are about to return
1823 if ((bank
& 0x07) != 0)
1824 i2c_smbus_write_byte_data(client
, W83795_REG_BANKSEL
,
1826 config
= i2c_smbus_read_byte_data(client
, W83795_REG_CONFIG
);
1827 if (config
& W83795_REG_CONFIG_CONFIG48
)
1828 chip_name
= "w83795adg";
1830 chip_name
= "w83795g";
1832 strlcpy(info
->type
, chip_name
, I2C_NAME_SIZE
);
1833 dev_info(&adapter
->dev
, "Found %s rev. %c at 0x%02hx\n", chip_name
,
1834 'A' + (device_id
& 0xf), address
);
1839 static int w83795_handle_files(struct device
*dev
, int (*fn
)(struct device
*,
1840 const struct device_attribute
*))
1842 struct w83795_data
*data
= dev_get_drvdata(dev
);
1845 for (i
= 0; i
< ARRAY_SIZE(w83795_in
); i
++) {
1846 if (!(data
->has_in
& (1 << i
)))
1848 for (j
= 0; j
< ARRAY_SIZE(w83795_in
[0]); j
++) {
1849 err
= fn(dev
, &w83795_in
[i
][j
].dev_attr
);
1855 for (i
= 0; i
< ARRAY_SIZE(w83795_fan
); i
++) {
1856 if (!(data
->has_fan
& (1 << i
)))
1858 for (j
= 0; j
< ARRAY_SIZE(w83795_fan
[0]); j
++) {
1859 err
= fn(dev
, &w83795_fan
[i
][j
].dev_attr
);
1865 for (i
= 0; i
< ARRAY_SIZE(sda_single_files
); i
++) {
1866 err
= fn(dev
, &sda_single_files
[i
].dev_attr
);
1871 for (i
= 0; i
< data
->has_pwm
; i
++) {
1872 for (j
= 0; j
< ARRAY_SIZE(w83795_pwm
[0]); j
++) {
1873 err
= fn(dev
, &w83795_pwm
[i
][j
].dev_attr
);
1879 for (i
= 0; i
< ARRAY_SIZE(w83795_temp
); i
++) {
1880 if (!(data
->has_temp
& (1 << i
)))
1882 for (j
= 0; j
< ARRAY_SIZE(w83795_temp
[0]); j
++) {
1883 err
= fn(dev
, &w83795_temp
[i
][j
].dev_attr
);
1889 if (data
->enable_dts
!= 0) {
1890 for (i
= 0; i
< ARRAY_SIZE(w83795_dts
); i
++) {
1891 if (!(data
->has_dts
& (1 << i
)))
1893 for (j
= 0; j
< ARRAY_SIZE(w83795_dts
[0]); j
++) {
1894 err
= fn(dev
, &w83795_dts
[i
][j
].dev_attr
);
1904 /* We need a wrapper that fits in w83795_handle_files */
1905 static int device_remove_file_wrapper(struct device
*dev
,
1906 const struct device_attribute
*attr
)
1908 device_remove_file(dev
, attr
);
1912 static void w83795_check_dynamic_in_limits(struct i2c_client
*client
)
1914 struct w83795_data
*data
= i2c_get_clientdata(client
);
1916 int i
, err_max
, err_min
;
1918 vid_ctl
= w83795_read(client
, W83795_REG_VID_CTRL
);
1920 /* Return immediately if VRM isn't configured */
1921 if ((vid_ctl
& 0x07) == 0x00 || (vid_ctl
& 0x07) == 0x07)
1924 data
->has_dyn_in
= (vid_ctl
>> 3) & 0x07;
1925 for (i
= 0; i
< 2; i
++) {
1926 if (!(data
->has_dyn_in
& (1 << i
)))
1929 /* Voltage limits in dynamic mode, switch to read-only */
1930 err_max
= sysfs_chmod_file(&client
->dev
.kobj
,
1931 &w83795_in
[i
][2].dev_attr
.attr
,
1933 err_min
= sysfs_chmod_file(&client
->dev
.kobj
,
1934 &w83795_in
[i
][3].dev_attr
.attr
,
1936 if (err_max
|| err_min
)
1937 dev_warn(&client
->dev
, "Failed to set in%d limits "
1938 "read-only (%d, %d)\n", i
, err_max
, err_min
);
1940 dev_info(&client
->dev
, "in%d limits set dynamically "
1945 /* Check pins that can be used for either temperature or voltage monitoring */
1946 static void w83795_apply_temp_config(struct w83795_data
*data
, u8 config
,
1947 int temp_chan
, int in_chan
)
1949 /* config is a 2-bit value */
1951 case 0x2: /* Voltage monitoring */
1952 data
->has_in
|= 1 << in_chan
;
1954 case 0x1: /* Thermal diode */
1957 data
->temp_mode
|= 1 << temp_chan
;
1959 case 0x3: /* Thermistor */
1960 data
->has_temp
|= 1 << temp_chan
;
1965 static int w83795_probe(struct i2c_client
*client
,
1966 const struct i2c_device_id
*id
)
1970 struct device
*dev
= &client
->dev
;
1971 struct w83795_data
*data
;
1974 data
= kzalloc(sizeof(struct w83795_data
), GFP_KERNEL
);
1980 i2c_set_clientdata(client
, data
);
1981 data
->chip_type
= id
->driver_data
;
1982 data
->bank
= i2c_smbus_read_byte_data(client
, W83795_REG_BANKSEL
);
1983 mutex_init(&data
->update_lock
);
1985 /* Initialize the chip */
1986 w83795_init_client(client
);
1988 /* Check which voltages and fans are present */
1989 data
->has_in
= w83795_read(client
, W83795_REG_VOLT_CTRL1
)
1990 | (w83795_read(client
, W83795_REG_VOLT_CTRL2
) << 8);
1991 data
->has_fan
= w83795_read(client
, W83795_REG_FANIN_CTRL1
)
1992 | (w83795_read(client
, W83795_REG_FANIN_CTRL2
) << 8);
1994 /* Check which analog temperatures and extra voltages are present */
1995 tmp
= w83795_read(client
, W83795_REG_TEMP_CTRL1
);
1997 data
->enable_dts
= 1;
1998 w83795_apply_temp_config(data
, (tmp
>> 2) & 0x3, 5, 16);
1999 w83795_apply_temp_config(data
, tmp
& 0x3, 4, 15);
2000 tmp
= w83795_read(client
, W83795_REG_TEMP_CTRL2
);
2001 w83795_apply_temp_config(data
, tmp
>> 6, 3, 20);
2002 w83795_apply_temp_config(data
, (tmp
>> 4) & 0x3, 2, 19);
2003 w83795_apply_temp_config(data
, (tmp
>> 2) & 0x3, 1, 18);
2004 w83795_apply_temp_config(data
, tmp
& 0x3, 0, 17);
2006 /* Check DTS enable status */
2007 if (data
->enable_dts
) {
2008 if (1 & w83795_read(client
, W83795_REG_DTSC
))
2009 data
->enable_dts
|= 2;
2010 data
->has_dts
= w83795_read(client
, W83795_REG_DTSE
);
2013 /* Report PECI Tbase values */
2014 if (data
->enable_dts
== 1) {
2015 for (i
= 0; i
< 8; i
++) {
2016 if (!(data
->has_dts
& (1 << i
)))
2018 tmp
= w83795_read(client
, W83795_REG_PECI_TBASE(i
));
2019 dev_info(&client
->dev
,
2020 "PECI agent %d Tbase temperature: %u\n",
2021 i
+ 1, (unsigned int)tmp
& 0x7f);
2025 data
->has_gain
= w83795_read(client
, W83795_REG_VMIGB_CTRL
) & 0x0f;
2027 /* pwm and smart fan */
2028 if (data
->chip_type
== w83795g
)
2032 w83795_update_pwm_config(client
);
2034 err
= w83795_handle_files(dev
, device_create_file
);
2038 if (data
->chip_type
== w83795g
)
2039 w83795_check_dynamic_in_limits(client
);
2041 data
->hwmon_dev
= hwmon_device_register(dev
);
2042 if (IS_ERR(data
->hwmon_dev
)) {
2043 err
= PTR_ERR(data
->hwmon_dev
);
2050 w83795_handle_files(dev
, device_remove_file_wrapper
);
2056 static int w83795_remove(struct i2c_client
*client
)
2058 struct w83795_data
*data
= i2c_get_clientdata(client
);
2060 hwmon_device_unregister(data
->hwmon_dev
);
2061 w83795_handle_files(&client
->dev
, device_remove_file_wrapper
);
2068 static const struct i2c_device_id w83795_id
[] = {
2069 { "w83795g", w83795g
},
2070 { "w83795adg", w83795adg
},
2073 MODULE_DEVICE_TABLE(i2c
, w83795_id
);
2075 static struct i2c_driver w83795_driver
= {
2079 .probe
= w83795_probe
,
2080 .remove
= w83795_remove
,
2081 .id_table
= w83795_id
,
2083 .class = I2C_CLASS_HWMON
,
2084 .detect
= w83795_detect
,
2085 .address_list
= normal_i2c
,
2088 static int __init
sensors_w83795_init(void)
2090 return i2c_add_driver(&w83795_driver
);
2093 static void __exit
sensors_w83795_exit(void)
2095 i2c_del_driver(&w83795_driver
);
2098 MODULE_AUTHOR("Wei Song");
2099 MODULE_DESCRIPTION("W83795G/ADG hardware monitoring driver");
2100 MODULE_LICENSE("GPL");
2102 module_init(sensors_w83795_init
);
2103 module_exit(sensors_w83795_exit
);