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
69 #define TEMP_CTRL_DISABLE 0
70 #define TEMP_CTRL_TD 1
71 #define TEMP_CTRL_VSEN 2
72 #define TEMP_CTRL_TR 3
73 #define TEMP_CTRL_SHIFT 4
74 #define TEMP_CTRL_HASIN_SHIFT 5
75 /* temp mode may effect VSEN17-12 (in20-15) */
76 static const u16 W83795_REG_TEMP_CTRL[][6] = {
77 /* Disable, TD, VSEN, TR, register shift value, has_in shift num */
78 {0x00, 0x01, 0x02, 0x03, 0, 17}, /* TR1 */
79 {0x00, 0x04, 0x08, 0x0C, 2, 18}, /* TR2 */
80 {0x00, 0x10, 0x20, 0x30, 4, 19}, /* TR3 */
81 {0x00, 0x40, 0x80, 0xC0, 6, 20}, /* TR4 */
82 {0x00, 0x00, 0x02, 0x03, 0, 15}, /* TR5 */
83 {0x00, 0x00, 0x08, 0x0C, 2, 16}, /* TR6 */
88 #define TEMP_CRIT_HYST 2
90 #define TEMP_WARN_HYST 4
91 /* only crit and crit_hyst affect real-time alarm status
92 * current crit crit_hyst warn warn_hyst */
93 static const u16 W83795_REG_TEMP[][5] = {
94 {0x21, 0x96, 0x97, 0x98, 0x99}, /* TD1/TR1 */
95 {0x22, 0x9a, 0x9b, 0x9c, 0x9d}, /* TD2/TR2 */
96 {0x23, 0x9e, 0x9f, 0xa0, 0xa1}, /* TD3/TR3 */
97 {0x24, 0xa2, 0xa3, 0xa4, 0xa5}, /* TD4/TR4 */
98 {0x1f, 0xa6, 0xa7, 0xa8, 0xa9}, /* TR5 */
99 {0x20, 0xaa, 0xab, 0xac, 0xad}, /* TR6 */
105 static const u16 W83795_REG_IN[][3] = {
106 /* Current, HL, LL */
107 {0x10, 0x70, 0x71}, /* VSEN1 */
108 {0x11, 0x72, 0x73}, /* VSEN2 */
109 {0x12, 0x74, 0x75}, /* VSEN3 */
110 {0x13, 0x76, 0x77}, /* VSEN4 */
111 {0x14, 0x78, 0x79}, /* VSEN5 */
112 {0x15, 0x7a, 0x7b}, /* VSEN6 */
113 {0x16, 0x7c, 0x7d}, /* VSEN7 */
114 {0x17, 0x7e, 0x7f}, /* VSEN8 */
115 {0x18, 0x80, 0x81}, /* VSEN9 */
116 {0x19, 0x82, 0x83}, /* VSEN10 */
117 {0x1A, 0x84, 0x85}, /* VSEN11 */
118 {0x1B, 0x86, 0x87}, /* VTT */
119 {0x1C, 0x88, 0x89}, /* 3VDD */
120 {0x1D, 0x8a, 0x8b}, /* 3VSB */
121 {0x1E, 0x8c, 0x8d}, /* VBAT */
122 {0x1F, 0xa6, 0xa7}, /* VSEN12 */
123 {0x20, 0xaa, 0xab}, /* VSEN13 */
124 {0x21, 0x96, 0x97}, /* VSEN14 */
125 {0x22, 0x9a, 0x9b}, /* VSEN15 */
126 {0x23, 0x9e, 0x9f}, /* VSEN16 */
127 {0x24, 0xa2, 0xa3}, /* VSEN17 */
129 #define W83795_REG_VRLSB 0x3C
130 #define VRLSB_SHIFT 6
132 static const u8 W83795_REG_IN_HL_LSB[] = {
136 0x94, /* VTT, 3VDD, 3VSB, 3VBAT */
145 #define IN_LSB_REG(index, type) \
146 (((type) == 1) ? W83795_REG_IN_HL_LSB[(index)] \
147 : (W83795_REG_IN_HL_LSB[(index)] + 1))
149 #define IN_LSB_REG_NUM 10
151 #define IN_LSB_SHIFT 0
153 static const u8 IN_LSB_SHIFT_IDX[][2] = {
154 /* High/Low LSB shift, LSB No. */
155 {0x00, 0x00}, /* VSEN1 */
156 {0x02, 0x00}, /* VSEN2 */
157 {0x04, 0x00}, /* VSEN3 */
158 {0x06, 0x00}, /* VSEN4 */
159 {0x00, 0x01}, /* VSEN5 */
160 {0x02, 0x01}, /* VSEN6 */
161 {0x04, 0x01}, /* VSEN7 */
162 {0x06, 0x01}, /* VSEN8 */
163 {0x00, 0x02}, /* VSEN9 */
164 {0x02, 0x02}, /* VSEN10 */
165 {0x04, 0x02}, /* VSEN11 */
166 {0x00, 0x03}, /* VTT */
167 {0x02, 0x03}, /* 3VDD */
168 {0x04, 0x03}, /* 3VSB */
169 {0x06, 0x03}, /* VBAT */
170 {0x06, 0x04}, /* VSEN12 */
171 {0x06, 0x05}, /* VSEN13 */
172 {0x06, 0x06}, /* VSEN14 */
173 {0x06, 0x07}, /* VSEN15 */
174 {0x06, 0x08}, /* VSEN16 */
175 {0x06, 0x09}, /* VSEN17 */
179 /* 3VDD, 3VSB, VBAT * 0.006 */
180 #define REST_VLT_BEGIN 12 /* the 13th volt to 15th */
181 #define REST_VLT_END 14 /* the 13th volt to 15th */
183 #define W83795_REG_FAN(index) (0x2E + (index))
184 #define W83795_REG_FAN_MIN_HL(index) (0xB6 + (index))
185 #define W83795_REG_FAN_MIN_LSB(index) (0xC4 + (index) / 2)
186 #define W83795_REG_FAN_MIN_LSB_SHIFT(index) \
187 (((index) % 1) ? 4 : 0)
189 #define W83795_REG_VID_CTRL 0x6A
191 #define ALARM_BEEP_REG_NUM 6
192 #define W83795_REG_ALARM(index) (0x41 + (index))
193 #define W83795_REG_BEEP(index) (0x50 + (index))
195 #define W83795_REG_CLR_CHASSIS 0x4D
198 #define W83795_REG_TEMP_NUM 6
199 #define W83795_REG_FCMS1 0x201
200 #define W83795_REG_FCMS2 0x208
201 #define W83795_REG_TFMR(index) (0x202 + (index))
202 #define W83795_REG_FOMC 0x20F
204 #define W83795_REG_TSS(index) (0x209 + (index))
208 #define PWM_NONSTOP 2
209 #define PWM_STOP_TIME 3
211 #define W83795_REG_PWM(index, nr) \
212 (((nr) == 0 ? 0x210 : \
213 (nr) == 1 ? 0x220 : \
214 (nr) == 2 ? 0x228 : \
215 (nr) == 3 ? 0x230 : 0x218) + (index))
217 #define W83795_REG_FTSH(index) (0x240 + (index) * 2)
218 #define W83795_REG_FTSL(index) (0x241 + (index) * 2)
219 #define W83795_REG_TFTS 0x250
221 #define TEMP_PWM_TTTI 0
222 #define TEMP_PWM_CTFS 1
223 #define TEMP_PWM_HCT 2
224 #define TEMP_PWM_HOT 3
225 #define W83795_REG_TTTI(index) (0x260 + (index))
226 #define W83795_REG_CTFS(index) (0x268 + (index))
227 #define W83795_REG_HT(index) (0x270 + (index))
231 #define W83795_REG_SF4_TEMP(temp_num, index) \
232 (0x280 + 0x10 * (temp_num) + (index))
233 #define W83795_REG_SF4_PWM(temp_num, index) \
234 (0x288 + 0x10 * (temp_num) + (index))
236 #define W83795_REG_DTSC 0x301
237 #define W83795_REG_DTSE 0x302
238 #define W83795_REG_DTS(index) (0x26 + (index))
241 #define DTS_CRIT_HYST 1
243 #define DTS_WARN_HYST 3
244 #define W83795_REG_DTS_EXT(index) (0xB2 + (index))
246 #define SETUP_PWM_DEFAULT 0
247 #define SETUP_PWM_UPTIME 1
248 #define SETUP_PWM_DOWNTIME 2
249 #define W83795_REG_SETUP_PWM(index) (0x20C + (index))
251 static inline u16 in_from_reg(u8 index, u16 val)
253 if ((index >= REST_VLT_BEGIN) && (index <= REST_VLT_END))
259 static inline u16 in_to_reg(u8 index, u16 val)
261 if ((index >= REST_VLT_BEGIN) && (index <= REST_VLT_END))
267 static inline unsigned long fan_from_reg(u16 val)
269 if ((val == 0xfff) || (val == 0))
271 return 1350000UL / val;
274 static inline u16 fan_to_reg(long rpm)
278 return SENSORS_LIMIT((1350000 + (rpm >> 1)) / rpm, 1, 0xffe);
281 static inline unsigned long time_from_reg(u8 reg)
286 static inline u8 time_to_reg(unsigned long val)
288 return SENSORS_LIMIT((val + 50) / 100, 0, 0xff);
291 static inline long temp_from_reg(s8 reg)
296 static inline s8 temp_to_reg(long val, s8 min, s8 max)
298 return SENSORS_LIMIT((val < 0 ? -val : val) / 1000, min, max);
301 static const u16 pwm_freq_cksel0[16] = {
302 1024, 512, 341, 256, 205, 171, 146, 128,
303 85, 64, 32, 16, 8, 4, 2, 1
306 static unsigned int pwm_freq_from_reg(u8 reg, u16 clkin)
308 unsigned long base_clock;
311 base_clock = clkin * 1000 / ((clkin == 48000) ? 384 : 256);
312 return base_clock / ((reg & 0x7f) + 1);
314 return pwm_freq_cksel0[reg & 0x0f];
317 static u8 pwm_freq_to_reg(unsigned long val, u16 clkin)
319 unsigned long base_clock;
321 unsigned long best0, best1;
323 /* Best fit for cksel = 0 */
324 for (reg0 = 0; reg0 < ARRAY_SIZE(pwm_freq_cksel0) - 1; reg0++) {
325 if (val > (pwm_freq_cksel0[reg0] +
326 pwm_freq_cksel0[reg0 + 1]) / 2)
329 if (val < 375) /* cksel = 1 can't beat this */
331 best0 = pwm_freq_cksel0[reg0];
333 /* Best fit for cksel = 1 */
334 base_clock = clkin * 1000 / ((clkin == 48000) ? 384 : 256);
335 reg1 = SENSORS_LIMIT(DIV_ROUND_CLOSEST(base_clock, val), 1, 128);
336 best1 = base_clock / reg1;
337 reg1 = 0x80 | (reg1 - 1);
339 /* Choose the closest one */
340 if (abs(val - best0) > abs(val - best1))
346 enum chip_types {w83795g, w83795adg};
349 struct device *hwmon_dev;
350 struct mutex update_lock;
351 unsigned long last_updated; /* In jiffies */
352 enum chip_types chip_type;
356 u32 has_in; /* Enable monitor VIN or not */
357 u8 has_dyn_in; /* Only in2-0 can have this */
358 u16 in[21][3]; /* Register value, read/high/low */
359 u8 in_lsb[10][3]; /* LSB Register value, high/low */
360 u8 has_gain; /* has gain: in17-20 * 8 */
362 u16 has_fan; /* Enable fan14-1 or not */
363 u16 fan[14]; /* Register value combine */
364 u16 fan_min[14]; /* Register value combine */
366 u8 has_temp; /* Enable monitor temp6-1 or not */
367 u8 temp[6][5]; /* current, crit, crit_hyst, warn, warn_hyst */
368 u8 temp_read_vrlsb[6];
369 u8 temp_mode; /* bit 0: TR mode, bit 1: TD mode */
370 u8 temp_src[3]; /* Register value */
372 u8 enable_dts; /* Enable PECI and SB-TSI,
373 * bit 0: =1 enable, =0 disable,
374 * bit 1: =1 AMD SB-TSI, =0 Intel PECI */
375 u8 has_dts; /* Enable monitor DTS temp */
376 u8 dts[8]; /* Register value */
377 u8 dts_read_vrlsb[8]; /* Register value */
378 u8 dts_ext[4]; /* Register value */
380 u8 has_pwm; /* 795g supports 8 pwm, 795adg only supports 2,
381 * no config register, only affected by chip
383 u8 pwm[8][5]; /* Register value, output, start, non stop, stop
385 u16 clkin; /* CLKIN frequency in kHz */
386 u8 pwm_fcms[2]; /* Register value */
387 u8 pwm_tfmr[6]; /* Register value */
388 u8 pwm_fomc; /* Register value */
390 u16 target_speed[8]; /* Register value, target speed for speed
392 u8 tol_speed; /* tolerance of target speed */
393 u8 pwm_temp[6][4]; /* TTTI, CTFS, HCT, HOT */
394 u8 sf4_reg[6][2][7]; /* 6 temp, temp/dcpwm, 7 registers */
396 u8 setup_pwm[3]; /* Register value */
398 u8 alarms[6]; /* Register value */
399 u8 beeps[6]; /* Register value */
407 * We assume that nobdody can change the bank outside the driver.
410 /* Must be called with data->update_lock held, except during initialization */
411 static int w83795_set_bank(struct i2c_client *client, u8 bank)
413 struct w83795_data *data = i2c_get_clientdata(client);
416 /* If the same bank is already set, nothing to do */
417 if ((data->bank & 0x07) == bank)
420 /* Change to new bank, preserve all other bits */
421 bank |= data->bank & ~0x07;
422 err = i2c_smbus_write_byte_data(client, W83795_REG_BANKSEL, bank);
424 dev_err(&client->dev,
425 "Failed to set bank to %d, err %d\n",
434 /* Must be called with data->update_lock held, except during initialization */
435 static u8 w83795_read(struct i2c_client *client, u16 reg)
439 err = w83795_set_bank(client, reg >> 8);
441 return 0x00; /* Arbitrary */
443 err = i2c_smbus_read_byte_data(client, reg & 0xff);
445 dev_err(&client->dev,
446 "Failed to read from register 0x%03x, err %d\n",
448 return 0x00; /* Arbitrary */
453 /* Must be called with data->update_lock held, except during initialization */
454 static int w83795_write(struct i2c_client *client, u16 reg, u8 value)
458 err = w83795_set_bank(client, reg >> 8);
462 err = i2c_smbus_write_byte_data(client, reg & 0xff, value);
464 dev_err(&client->dev,
465 "Failed to write to register 0x%03x, err %d\n",
470 static struct w83795_data *w83795_update_device(struct device *dev)
472 struct i2c_client *client = to_i2c_client(dev);
473 struct w83795_data *data = i2c_get_clientdata(client);
477 mutex_lock(&data->update_lock);
479 if (!(time_after(jiffies, data->last_updated + HZ * 2)
483 /* Update the voltages value */
484 for (i = 0; i < ARRAY_SIZE(data->in); i++) {
485 if (!(data->has_in & (1 << i)))
487 tmp = w83795_read(client, W83795_REG_IN[i][IN_READ]) << 2;
488 tmp |= (w83795_read(client, W83795_REG_VRLSB)
489 >> VRLSB_SHIFT) & 0x03;
490 data->in[i][IN_READ] = tmp;
493 /* in0-2 can have dynamic limits (W83795G only) */
494 if (data->has_dyn_in) {
495 u8 lsb_max = w83795_read(client, IN_LSB_REG(0, IN_MAX));
496 u8 lsb_low = w83795_read(client, IN_LSB_REG(0, IN_LOW));
498 for (i = 0; i < 3; i++) {
499 if (!(data->has_dyn_in & (1 << i)))
501 data->in[i][IN_MAX] =
502 w83795_read(client, W83795_REG_IN[i][IN_MAX]);
503 data->in[i][IN_LOW] =
504 w83795_read(client, W83795_REG_IN[i][IN_LOW]);
505 data->in_lsb[i][IN_MAX] = (lsb_max >> (2 * i)) & 0x03;
506 data->in_lsb[i][IN_LOW] = (lsb_low >> (2 * i)) & 0x03;
511 for (i = 0; i < ARRAY_SIZE(data->fan); i++) {
512 if (!(data->has_fan & (1 << i)))
514 data->fan[i] = w83795_read(client, W83795_REG_FAN(i)) << 4;
516 (w83795_read(client, W83795_REG_VRLSB) >> 4) & 0x0F;
519 /* Update temperature */
520 for (i = 0; i < ARRAY_SIZE(data->temp); i++) {
521 /* even stop monitor, register still keep value, just read out
523 if (!(data->has_temp & (1 << i))) {
524 data->temp[i][TEMP_READ] = 0;
525 data->temp_read_vrlsb[i] = 0;
528 data->temp[i][TEMP_READ] =
529 w83795_read(client, W83795_REG_TEMP[i][TEMP_READ]);
530 data->temp_read_vrlsb[i] =
531 w83795_read(client, W83795_REG_VRLSB);
534 /* Update dts temperature */
535 if (data->enable_dts != 0) {
536 for (i = 0; i < ARRAY_SIZE(data->dts); i++) {
537 if (!(data->has_dts & (1 << i)))
540 w83795_read(client, W83795_REG_DTS(i));
541 data->dts_read_vrlsb[i] =
542 w83795_read(client, W83795_REG_VRLSB);
546 /* Update pwm output */
547 for (i = 0; i < data->has_pwm; i++) {
548 data->pwm[i][PWM_OUTPUT] =
549 w83795_read(client, W83795_REG_PWM(i, PWM_OUTPUT));
553 for (i = 0; i < ALARM_BEEP_REG_NUM; i++)
554 data->alarms[i] = w83795_read(client, W83795_REG_ALARM(i));
556 data->last_updated = jiffies;
560 mutex_unlock(&data->update_lock);
568 #define ALARM_STATUS 0
569 #define BEEP_ENABLE 1
571 show_alarm_beep(struct device *dev, struct device_attribute *attr, char *buf)
573 struct w83795_data *data = w83795_update_device(dev);
574 struct sensor_device_attribute_2 *sensor_attr =
575 to_sensor_dev_attr_2(attr);
576 int nr = sensor_attr->nr;
577 int index = sensor_attr->index >> 3;
578 int bit = sensor_attr->index & 0x07;
581 if (ALARM_STATUS == nr) {
582 val = (data->alarms[index] >> (bit)) & 1;
583 } else { /* BEEP_ENABLE */
584 val = (data->beeps[index] >> (bit)) & 1;
587 return sprintf(buf, "%u\n", val);
591 store_beep(struct device *dev, struct device_attribute *attr,
592 const char *buf, size_t count)
594 struct i2c_client *client = to_i2c_client(dev);
595 struct w83795_data *data = i2c_get_clientdata(client);
596 struct sensor_device_attribute_2 *sensor_attr =
597 to_sensor_dev_attr_2(attr);
598 int index = sensor_attr->index >> 3;
599 int shift = sensor_attr->index & 0x07;
600 u8 beep_bit = 1 << shift;
603 if (strict_strtoul(buf, 10, &val) < 0)
605 if (val != 0 && val != 1)
608 mutex_lock(&data->update_lock);
609 data->beeps[index] = w83795_read(client, W83795_REG_BEEP(index));
610 data->beeps[index] &= ~beep_bit;
611 data->beeps[index] |= val << shift;
612 w83795_write(client, W83795_REG_BEEP(index), data->beeps[index]);
613 mutex_unlock(&data->update_lock);
619 show_beep_enable(struct device *dev, struct device_attribute *attr, char *buf)
621 struct i2c_client *client = to_i2c_client(dev);
622 struct w83795_data *data = i2c_get_clientdata(client);
623 return sprintf(buf, "%u\n", data->beep_enable);
627 store_beep_enable(struct device *dev, struct device_attribute *attr,
628 const char *buf, size_t count)
630 struct i2c_client *client = to_i2c_client(dev);
631 struct w83795_data *data = i2c_get_clientdata(client);
635 if (strict_strtoul(buf, 10, &val) < 0)
637 if (val != 0 && val != 1)
640 mutex_lock(&data->update_lock);
641 data->beep_enable = val;
642 tmp = w83795_read(client, W83795_REG_BEEP(5));
645 w83795_write(client, W83795_REG_BEEP(5), tmp);
646 mutex_unlock(&data->update_lock);
651 /* Write any value to clear chassis alarm */
653 store_chassis_clear(struct device *dev,
654 struct device_attribute *attr, const char *buf,
657 struct i2c_client *client = to_i2c_client(dev);
658 struct w83795_data *data = i2c_get_clientdata(client);
661 mutex_lock(&data->update_lock);
662 val = w83795_read(client, W83795_REG_CLR_CHASSIS);
664 w83795_write(client, W83795_REG_CLR_CHASSIS, val);
665 mutex_unlock(&data->update_lock);
672 show_fan(struct device *dev, struct device_attribute *attr, char *buf)
674 struct sensor_device_attribute_2 *sensor_attr =
675 to_sensor_dev_attr_2(attr);
676 int nr = sensor_attr->nr;
677 int index = sensor_attr->index;
678 struct w83795_data *data = w83795_update_device(dev);
682 val = data->fan[index] & 0x0fff;
684 val = data->fan_min[index] & 0x0fff;
686 return sprintf(buf, "%lu\n", fan_from_reg(val));
690 store_fan_min(struct device *dev, struct device_attribute *attr,
691 const char *buf, size_t count)
693 struct sensor_device_attribute_2 *sensor_attr =
694 to_sensor_dev_attr_2(attr);
695 int index = sensor_attr->index;
696 struct i2c_client *client = to_i2c_client(dev);
697 struct w83795_data *data = i2c_get_clientdata(client);
700 if (strict_strtoul(buf, 10, &val))
702 val = fan_to_reg(val);
704 mutex_lock(&data->update_lock);
705 data->fan_min[index] = val;
706 w83795_write(client, W83795_REG_FAN_MIN_HL(index), (val >> 4) & 0xff);
710 val |= w83795_read(client, W83795_REG_FAN_MIN_LSB(index))
713 val |= w83795_read(client, W83795_REG_FAN_MIN_LSB(index))
716 w83795_write(client, W83795_REG_FAN_MIN_LSB(index), val & 0xff);
717 mutex_unlock(&data->update_lock);
723 show_pwm(struct device *dev, struct device_attribute *attr, char *buf)
725 struct w83795_data *data = w83795_update_device(dev);
726 struct sensor_device_attribute_2 *sensor_attr =
727 to_sensor_dev_attr_2(attr);
728 int nr = sensor_attr->nr;
729 int index = sensor_attr->index;
734 val = time_from_reg(data->pwm[index][nr]);
737 val = pwm_freq_from_reg(data->pwm[index][nr], data->clkin);
740 val = data->pwm[index][nr];
744 return sprintf(buf, "%u\n", val);
748 store_pwm(struct device *dev, struct device_attribute *attr,
749 const char *buf, size_t count)
751 struct i2c_client *client = to_i2c_client(dev);
752 struct w83795_data *data = i2c_get_clientdata(client);
753 struct sensor_device_attribute_2 *sensor_attr =
754 to_sensor_dev_attr_2(attr);
755 int nr = sensor_attr->nr;
756 int index = sensor_attr->index;
759 if (strict_strtoul(buf, 10, &val) < 0)
762 mutex_lock(&data->update_lock);
765 val = time_to_reg(val);
768 val = pwm_freq_to_reg(val, data->clkin);
771 val = SENSORS_LIMIT(val, 0, 0xff);
774 w83795_write(client, W83795_REG_PWM(index, nr), val);
775 data->pwm[index][nr] = val;
776 mutex_unlock(&data->update_lock);
781 show_pwm_enable(struct device *dev, struct device_attribute *attr, char *buf)
783 struct sensor_device_attribute_2 *sensor_attr =
784 to_sensor_dev_attr_2(attr);
785 struct i2c_client *client = to_i2c_client(dev);
786 struct w83795_data *data = i2c_get_clientdata(client);
787 int index = sensor_attr->index;
790 if (1 == (data->pwm_fcms[0] & (1 << index))) {
794 for (tmp = 0; tmp < 6; tmp++) {
795 if (data->pwm_tfmr[tmp] & (1 << index)) {
800 if (data->pwm_fomc & (1 << index))
806 return sprintf(buf, "%u\n", tmp);
810 store_pwm_enable(struct device *dev, struct device_attribute *attr,
811 const char *buf, size_t count)
813 struct i2c_client *client = to_i2c_client(dev);
814 struct w83795_data *data = i2c_get_clientdata(client);
815 struct sensor_device_attribute_2 *sensor_attr =
816 to_sensor_dev_attr_2(attr);
817 int index = sensor_attr->index;
821 if (strict_strtoul(buf, 10, &val) < 0)
826 mutex_lock(&data->update_lock);
830 data->pwm_fcms[0] &= ~(1 << index);
831 w83795_write(client, W83795_REG_FCMS1, data->pwm_fcms[0]);
832 for (i = 0; i < 6; i++) {
833 data->pwm_tfmr[i] &= ~(1 << index);
834 w83795_write(client, W83795_REG_TFMR(i),
837 data->pwm_fomc |= 1 << index;
838 data->pwm_fomc ^= val << index;
839 w83795_write(client, W83795_REG_FOMC, data->pwm_fomc);
842 data->pwm_fcms[0] |= (1 << index);
843 w83795_write(client, W83795_REG_FCMS1, data->pwm_fcms[0]);
846 mutex_unlock(&data->update_lock);
851 show_temp_src(struct device *dev, struct device_attribute *attr, char *buf)
853 struct sensor_device_attribute_2 *sensor_attr =
854 to_sensor_dev_attr_2(attr);
855 struct i2c_client *client = to_i2c_client(dev);
856 struct w83795_data *data = i2c_get_clientdata(client);
857 int index = sensor_attr->index;
859 u8 tmp = data->temp_src[val];
868 return sprintf(buf, "%u\n", tmp);
872 store_temp_src(struct device *dev, struct device_attribute *attr,
873 const char *buf, size_t count)
875 struct i2c_client *client = to_i2c_client(dev);
876 struct w83795_data *data = i2c_get_clientdata(client);
877 struct sensor_device_attribute_2 *sensor_attr =
878 to_sensor_dev_attr_2(attr);
879 int index = sensor_attr->index;
883 if (strict_strtoul(buf, 10, &tmp) < 0)
885 tmp = SENSORS_LIMIT(tmp, 0, 15);
887 mutex_lock(&data->update_lock);
890 data->temp_src[val] &= 0x0f;
892 data->temp_src[val] &= 0xf0;
894 data->temp_src[val] |= tmp;
895 w83795_write(client, W83795_REG_TSS(val), data->temp_src[val]);
896 mutex_unlock(&data->update_lock);
901 #define TEMP_PWM_ENABLE 0
902 #define TEMP_PWM_FAN_MAP 1
904 show_temp_pwm_enable(struct device *dev, struct device_attribute *attr,
907 struct i2c_client *client = to_i2c_client(dev);
908 struct w83795_data *data = i2c_get_clientdata(client);
909 struct sensor_device_attribute_2 *sensor_attr =
910 to_sensor_dev_attr_2(attr);
911 int nr = sensor_attr->nr;
912 int index = sensor_attr->index;
916 case TEMP_PWM_ENABLE:
917 tmp = (data->pwm_fcms[1] >> index) & 1;
923 case TEMP_PWM_FAN_MAP:
924 tmp = data->pwm_tfmr[index];
928 return sprintf(buf, "%u\n", tmp);
932 store_temp_pwm_enable(struct device *dev, struct device_attribute *attr,
933 const char *buf, size_t count)
935 struct i2c_client *client = to_i2c_client(dev);
936 struct w83795_data *data = i2c_get_clientdata(client);
937 struct sensor_device_attribute_2 *sensor_attr =
938 to_sensor_dev_attr_2(attr);
939 int nr = sensor_attr->nr;
940 int index = sensor_attr->index;
943 if (strict_strtoul(buf, 10, &tmp) < 0)
947 case TEMP_PWM_ENABLE:
948 if ((tmp != 3) && (tmp != 4))
951 mutex_lock(&data->update_lock);
952 data->pwm_fcms[1] &= ~(1 << index);
953 data->pwm_fcms[1] |= tmp << index;
954 w83795_write(client, W83795_REG_FCMS2, data->pwm_fcms[1]);
955 mutex_unlock(&data->update_lock);
957 case TEMP_PWM_FAN_MAP:
958 mutex_lock(&data->update_lock);
959 tmp = SENSORS_LIMIT(tmp, 0, 0xff);
960 w83795_write(client, W83795_REG_TFMR(index), tmp);
961 data->pwm_tfmr[index] = tmp;
962 mutex_unlock(&data->update_lock);
968 #define FANIN_TARGET 0
971 show_fanin(struct device *dev, struct device_attribute *attr, char *buf)
973 struct i2c_client *client = to_i2c_client(dev);
974 struct w83795_data *data = i2c_get_clientdata(client);
975 struct sensor_device_attribute_2 *sensor_attr =
976 to_sensor_dev_attr_2(attr);
977 int nr = sensor_attr->nr;
978 int index = sensor_attr->index;
983 tmp = fan_from_reg(data->target_speed[index]);
986 tmp = data->tol_speed;
990 return sprintf(buf, "%u\n", tmp);
994 store_fanin(struct device *dev, struct device_attribute *attr,
995 const char *buf, size_t count)
997 struct i2c_client *client = to_i2c_client(dev);
998 struct w83795_data *data = i2c_get_clientdata(client);
999 struct sensor_device_attribute_2 *sensor_attr =
1000 to_sensor_dev_attr_2(attr);
1001 int nr = sensor_attr->nr;
1002 int index = sensor_attr->index;
1005 if (strict_strtoul(buf, 10, &val) < 0)
1008 mutex_lock(&data->update_lock);
1011 val = fan_to_reg(SENSORS_LIMIT(val, 0, 0xfff));
1012 w83795_write(client, W83795_REG_FTSH(index), (val >> 4) & 0xff);
1013 w83795_write(client, W83795_REG_FTSL(index), (val << 4) & 0xf0);
1014 data->target_speed[index] = val;
1017 val = SENSORS_LIMIT(val, 0, 0x3f);
1018 w83795_write(client, W83795_REG_TFTS, val);
1019 data->tol_speed = val;
1022 mutex_unlock(&data->update_lock);
1029 show_temp_pwm(struct device *dev, struct device_attribute *attr, char *buf)
1031 struct i2c_client *client = to_i2c_client(dev);
1032 struct w83795_data *data = i2c_get_clientdata(client);
1033 struct sensor_device_attribute_2 *sensor_attr =
1034 to_sensor_dev_attr_2(attr);
1035 int nr = sensor_attr->nr;
1036 int index = sensor_attr->index;
1037 long tmp = temp_from_reg(data->pwm_temp[index][nr]);
1039 return sprintf(buf, "%ld\n", tmp);
1043 store_temp_pwm(struct device *dev, struct device_attribute *attr,
1044 const char *buf, size_t count)
1046 struct i2c_client *client = to_i2c_client(dev);
1047 struct w83795_data *data = i2c_get_clientdata(client);
1048 struct sensor_device_attribute_2 *sensor_attr =
1049 to_sensor_dev_attr_2(attr);
1050 int nr = sensor_attr->nr;
1051 int index = sensor_attr->index;
1055 if (strict_strtoul(buf, 10, &val) < 0)
1059 mutex_lock(&data->update_lock);
1062 val = SENSORS_LIMIT(val, 0, 0x7f);
1063 w83795_write(client, W83795_REG_TTTI(index), val);
1066 val = SENSORS_LIMIT(val, 0, 0x7f);
1067 w83795_write(client, W83795_REG_CTFS(index), val);
1070 val = SENSORS_LIMIT(val, 0, 0x0f);
1071 tmp = w83795_read(client, W83795_REG_HT(index));
1073 tmp |= (val << 4) & 0xf0;
1074 w83795_write(client, W83795_REG_HT(index), tmp);
1077 val = SENSORS_LIMIT(val, 0, 0x0f);
1078 tmp = w83795_read(client, W83795_REG_HT(index));
1081 w83795_write(client, W83795_REG_HT(index), tmp);
1084 data->pwm_temp[index][nr] = val;
1085 mutex_unlock(&data->update_lock);
1091 show_sf4_pwm(struct device *dev, struct device_attribute *attr, char *buf)
1093 struct i2c_client *client = to_i2c_client(dev);
1094 struct w83795_data *data = i2c_get_clientdata(client);
1095 struct sensor_device_attribute_2 *sensor_attr =
1096 to_sensor_dev_attr_2(attr);
1097 int nr = sensor_attr->nr;
1098 int index = sensor_attr->index;
1100 return sprintf(buf, "%u\n", data->sf4_reg[index][SF4_PWM][nr]);
1104 store_sf4_pwm(struct device *dev, struct device_attribute *attr,
1105 const char *buf, size_t count)
1107 struct i2c_client *client = to_i2c_client(dev);
1108 struct w83795_data *data = i2c_get_clientdata(client);
1109 struct sensor_device_attribute_2 *sensor_attr =
1110 to_sensor_dev_attr_2(attr);
1111 int nr = sensor_attr->nr;
1112 int index = sensor_attr->index;
1115 if (strict_strtoul(buf, 10, &val) < 0)
1118 mutex_lock(&data->update_lock);
1119 w83795_write(client, W83795_REG_SF4_PWM(index, nr), val);
1120 data->sf4_reg[index][SF4_PWM][nr] = val;
1121 mutex_unlock(&data->update_lock);
1127 show_sf4_temp(struct device *dev, struct device_attribute *attr, char *buf)
1129 struct i2c_client *client = to_i2c_client(dev);
1130 struct w83795_data *data = i2c_get_clientdata(client);
1131 struct sensor_device_attribute_2 *sensor_attr =
1132 to_sensor_dev_attr_2(attr);
1133 int nr = sensor_attr->nr;
1134 int index = sensor_attr->index;
1136 return sprintf(buf, "%u\n",
1137 (data->sf4_reg[index][SF4_TEMP][nr]) * 1000);
1141 store_sf4_temp(struct device *dev, struct device_attribute *attr,
1142 const char *buf, size_t count)
1144 struct i2c_client *client = to_i2c_client(dev);
1145 struct w83795_data *data = i2c_get_clientdata(client);
1146 struct sensor_device_attribute_2 *sensor_attr =
1147 to_sensor_dev_attr_2(attr);
1148 int nr = sensor_attr->nr;
1149 int index = sensor_attr->index;
1152 if (strict_strtoul(buf, 10, &val) < 0)
1156 mutex_lock(&data->update_lock);
1157 w83795_write(client, W83795_REG_SF4_TEMP(index, nr), val);
1158 data->sf4_reg[index][SF4_TEMP][nr] = val;
1159 mutex_unlock(&data->update_lock);
1166 show_temp(struct device *dev, struct device_attribute *attr, char *buf)
1168 struct sensor_device_attribute_2 *sensor_attr =
1169 to_sensor_dev_attr_2(attr);
1170 int nr = sensor_attr->nr;
1171 int index = sensor_attr->index;
1172 struct w83795_data *data = w83795_update_device(dev);
1173 long temp = temp_from_reg(data->temp[index][nr] & 0x7f);
1175 if (TEMP_READ == nr)
1176 temp += ((data->temp_read_vrlsb[index] >> VRLSB_SHIFT) & 0x03)
1178 if (data->temp[index][nr] & 0x80)
1180 return sprintf(buf, "%ld\n", temp);
1184 store_temp(struct device *dev, struct device_attribute *attr,
1185 const char *buf, size_t count)
1187 struct sensor_device_attribute_2 *sensor_attr =
1188 to_sensor_dev_attr_2(attr);
1189 int nr = sensor_attr->nr;
1190 int index = sensor_attr->index;
1191 struct i2c_client *client = to_i2c_client(dev);
1192 struct w83795_data *data = i2c_get_clientdata(client);
1195 if (strict_strtol(buf, 10, &tmp) < 0)
1198 mutex_lock(&data->update_lock);
1199 data->temp[index][nr] = temp_to_reg(tmp, -128, 127);
1200 w83795_write(client, W83795_REG_TEMP[index][nr], data->temp[index][nr]);
1201 mutex_unlock(&data->update_lock);
1207 show_dts_mode(struct device *dev, struct device_attribute *attr, char *buf)
1209 struct i2c_client *client = to_i2c_client(dev);
1210 struct w83795_data *data = i2c_get_clientdata(client);
1211 struct sensor_device_attribute_2 *sensor_attr =
1212 to_sensor_dev_attr_2(attr);
1213 int index = sensor_attr->index;
1216 if (data->enable_dts == 0)
1217 return sprintf(buf, "%d\n", 0);
1219 if ((data->has_dts >> index) & 0x01) {
1220 if (data->enable_dts & 2)
1228 return sprintf(buf, "%d\n", tmp);
1232 show_dts(struct device *dev, struct device_attribute *attr, char *buf)
1234 struct sensor_device_attribute_2 *sensor_attr =
1235 to_sensor_dev_attr_2(attr);
1236 int index = sensor_attr->index;
1237 struct w83795_data *data = w83795_update_device(dev);
1238 long temp = temp_from_reg(data->dts[index] & 0x7f);
1240 temp += ((data->dts_read_vrlsb[index] >> VRLSB_SHIFT) & 0x03) * 250;
1241 if (data->dts[index] & 0x80)
1243 return sprintf(buf, "%ld\n", temp);
1247 show_dts_ext(struct device *dev, struct device_attribute *attr, char *buf)
1249 struct sensor_device_attribute_2 *sensor_attr =
1250 to_sensor_dev_attr_2(attr);
1251 int nr = sensor_attr->nr;
1252 struct i2c_client *client = to_i2c_client(dev);
1253 struct w83795_data *data = i2c_get_clientdata(client);
1254 long temp = temp_from_reg(data->dts_ext[nr] & 0x7f);
1256 if (data->dts_ext[nr] & 0x80)
1258 return sprintf(buf, "%ld\n", temp);
1262 store_dts_ext(struct device *dev, struct device_attribute *attr,
1263 const char *buf, size_t count)
1265 struct sensor_device_attribute_2 *sensor_attr =
1266 to_sensor_dev_attr_2(attr);
1267 int nr = sensor_attr->nr;
1268 struct i2c_client *client = to_i2c_client(dev);
1269 struct w83795_data *data = i2c_get_clientdata(client);
1272 if (strict_strtol(buf, 10, &tmp) < 0)
1275 mutex_lock(&data->update_lock);
1276 data->dts_ext[nr] = temp_to_reg(tmp, -128, 127);
1277 w83795_write(client, W83795_REG_DTS_EXT(nr), data->dts_ext[nr]);
1278 mutex_unlock(&data->update_lock);
1284 Type 3: Thermal diode
1292 show_temp_mode(struct device *dev, struct device_attribute *attr, char *buf)
1294 struct i2c_client *client = to_i2c_client(dev);
1295 struct w83795_data *data = i2c_get_clientdata(client);
1296 struct sensor_device_attribute_2 *sensor_attr =
1297 to_sensor_dev_attr_2(attr);
1298 int index = sensor_attr->index;
1301 if (data->has_temp >> index & 0x01) {
1302 if (data->temp_mode >> index & 0x01)
1310 return sprintf(buf, "%d\n", tmp);
1314 store_temp_mode(struct device *dev, struct device_attribute *attr,
1315 const char *buf, size_t count)
1317 struct i2c_client *client = to_i2c_client(dev);
1318 struct w83795_data *data = i2c_get_clientdata(client);
1319 struct sensor_device_attribute_2 *sensor_attr =
1320 to_sensor_dev_attr_2(attr);
1321 int index = sensor_attr->index;
1326 if (strict_strtoul(buf, 10, &val) < 0)
1328 if ((val != 4) && (val != 3))
1330 if ((index > 3) && (val == 3))
1333 mutex_lock(&data->update_lock);
1336 data->has_temp |= 1 << index;
1337 data->temp_mode |= 1 << index;
1338 } else if (val == 4) {
1340 data->has_temp |= 1 << index;
1342 data->temp_mode &= ~tmp;
1346 tmp = w83795_read(client, W83795_REG_TEMP_CTRL1);
1348 tmp = w83795_read(client, W83795_REG_TEMP_CTRL2);
1350 mask = 0x03 << W83795_REG_TEMP_CTRL[index][TEMP_CTRL_SHIFT];
1352 tmp |= W83795_REG_TEMP_CTRL[index][val];
1354 mask = 1 << W83795_REG_TEMP_CTRL[index][TEMP_CTRL_HASIN_SHIFT];
1355 data->has_in &= ~mask;
1358 w83795_write(client, W83795_REG_TEMP_CTRL1, tmp);
1360 w83795_write(client, W83795_REG_TEMP_CTRL2, tmp);
1362 mutex_unlock(&data->update_lock);
1367 /* show/store VIN */
1369 show_in(struct device *dev, struct device_attribute *attr, char *buf)
1371 struct sensor_device_attribute_2 *sensor_attr =
1372 to_sensor_dev_attr_2(attr);
1373 int nr = sensor_attr->nr;
1374 int index = sensor_attr->index;
1375 struct w83795_data *data = w83795_update_device(dev);
1376 u16 val = data->in[index][nr];
1381 /* calculate this value again by sensors as sensors3.conf */
1382 if ((index >= 17) &&
1383 !((data->has_gain >> (index - 17)) & 1))
1388 lsb_idx = IN_LSB_SHIFT_IDX[index][IN_LSB_IDX];
1390 val |= (data->in_lsb[lsb_idx][nr] >>
1391 IN_LSB_SHIFT_IDX[lsb_idx][IN_LSB_SHIFT]) & 0x03;
1392 if ((index >= 17) &&
1393 !((data->has_gain >> (index - 17)) & 1))
1397 val = in_from_reg(index, val);
1399 return sprintf(buf, "%d\n", val);
1403 store_in(struct device *dev, struct device_attribute *attr,
1404 const char *buf, size_t count)
1406 struct sensor_device_attribute_2 *sensor_attr =
1407 to_sensor_dev_attr_2(attr);
1408 int nr = sensor_attr->nr;
1409 int index = sensor_attr->index;
1410 struct i2c_client *client = to_i2c_client(dev);
1411 struct w83795_data *data = i2c_get_clientdata(client);
1416 if (strict_strtoul(buf, 10, &val) < 0)
1418 val = in_to_reg(index, val);
1420 if ((index >= 17) &&
1421 !((data->has_gain >> (index - 17)) & 1))
1423 val = SENSORS_LIMIT(val, 0, 0x3FF);
1424 mutex_lock(&data->update_lock);
1426 lsb_idx = IN_LSB_SHIFT_IDX[index][IN_LSB_IDX];
1427 tmp = w83795_read(client, IN_LSB_REG(lsb_idx, nr));
1428 tmp &= ~(0x03 << IN_LSB_SHIFT_IDX[index][IN_LSB_SHIFT]);
1429 tmp |= (val & 0x03) << IN_LSB_SHIFT_IDX[index][IN_LSB_SHIFT];
1430 w83795_write(client, IN_LSB_REG(lsb_idx, nr), tmp);
1431 data->in_lsb[lsb_idx][nr] = tmp;
1433 tmp = (val >> 2) & 0xff;
1434 w83795_write(client, W83795_REG_IN[index][nr], tmp);
1435 data->in[index][nr] = tmp;
1437 mutex_unlock(&data->update_lock);
1443 show_sf_setup(struct device *dev, struct device_attribute *attr, char *buf)
1445 struct sensor_device_attribute_2 *sensor_attr =
1446 to_sensor_dev_attr_2(attr);
1447 int nr = sensor_attr->nr;
1448 struct i2c_client *client = to_i2c_client(dev);
1449 struct w83795_data *data = i2c_get_clientdata(client);
1450 u16 val = data->setup_pwm[nr];
1453 case SETUP_PWM_UPTIME:
1454 case SETUP_PWM_DOWNTIME:
1455 val = time_from_reg(val);
1459 return sprintf(buf, "%d\n", val);
1463 store_sf_setup(struct device *dev, struct device_attribute *attr,
1464 const char *buf, size_t count)
1466 struct sensor_device_attribute_2 *sensor_attr =
1467 to_sensor_dev_attr_2(attr);
1468 int nr = sensor_attr->nr;
1469 struct i2c_client *client = to_i2c_client(dev);
1470 struct w83795_data *data = i2c_get_clientdata(client);
1473 if (strict_strtoul(buf, 10, &val) < 0)
1477 case SETUP_PWM_DEFAULT:
1478 val = SENSORS_LIMIT(val, 0, 0xff);
1480 case SETUP_PWM_UPTIME:
1481 case SETUP_PWM_DOWNTIME:
1482 val = time_to_reg(val);
1488 mutex_lock(&data->update_lock);
1489 data->setup_pwm[nr] = val;
1490 w83795_write(client, W83795_REG_SETUP_PWM(nr), val);
1491 mutex_unlock(&data->update_lock);
1498 /* Don't change the attribute order, _max and _min are accessed by index
1499 * somewhere else in the code */
1500 #define SENSOR_ATTR_IN(index) { \
1501 SENSOR_ATTR_2(in##index##_input, S_IRUGO, show_in, NULL, \
1503 SENSOR_ATTR_2(in##index##_max, S_IRUGO | S_IWUSR, show_in, \
1504 store_in, IN_MAX, index), \
1505 SENSOR_ATTR_2(in##index##_min, S_IRUGO | S_IWUSR, show_in, \
1506 store_in, IN_LOW, index), \
1507 SENSOR_ATTR_2(in##index##_alarm, S_IRUGO, show_alarm_beep, \
1508 NULL, ALARM_STATUS, index + ((index > 14) ? 1 : 0)), \
1509 SENSOR_ATTR_2(in##index##_beep, S_IWUSR | S_IRUGO, \
1510 show_alarm_beep, store_beep, BEEP_ENABLE, \
1511 index + ((index > 14) ? 1 : 0)) }
1513 #define SENSOR_ATTR_FAN(index) { \
1514 SENSOR_ATTR_2(fan##index##_input, S_IRUGO, show_fan, \
1515 NULL, FAN_INPUT, index - 1), \
1516 SENSOR_ATTR_2(fan##index##_min, S_IWUSR | S_IRUGO, \
1517 show_fan, store_fan_min, FAN_MIN, index - 1), \
1518 SENSOR_ATTR_2(fan##index##_alarm, S_IRUGO, show_alarm_beep, \
1519 NULL, ALARM_STATUS, index + 31), \
1520 SENSOR_ATTR_2(fan##index##_beep, S_IWUSR | S_IRUGO, \
1521 show_alarm_beep, store_beep, BEEP_ENABLE, index + 31) }
1523 #define SENSOR_ATTR_PWM(index) { \
1524 SENSOR_ATTR_2(pwm##index, S_IWUSR | S_IRUGO, show_pwm, \
1525 store_pwm, PWM_OUTPUT, index - 1), \
1526 SENSOR_ATTR_2(pwm##index##_nonstop, S_IWUSR | S_IRUGO, \
1527 show_pwm, store_pwm, PWM_NONSTOP, index - 1), \
1528 SENSOR_ATTR_2(pwm##index##_start, S_IWUSR | S_IRUGO, \
1529 show_pwm, store_pwm, PWM_START, index - 1), \
1530 SENSOR_ATTR_2(pwm##index##_stop_time, S_IWUSR | S_IRUGO, \
1531 show_pwm, store_pwm, PWM_STOP_TIME, index - 1), \
1532 SENSOR_ATTR_2(pwm##index##_freq, S_IWUSR | S_IRUGO, \
1533 show_pwm, store_pwm, PWM_FREQ, index - 1), \
1534 SENSOR_ATTR_2(pwm##index##_enable, S_IWUSR | S_IRUGO, \
1535 show_pwm_enable, store_pwm_enable, NOT_USED, index - 1), \
1536 SENSOR_ATTR_2(fan##index##_target, S_IWUSR | S_IRUGO, \
1537 show_fanin, store_fanin, FANIN_TARGET, index - 1) }
1539 #define SENSOR_ATTR_DTS(index) { \
1540 SENSOR_ATTR_2(temp##index##_type, S_IRUGO , \
1541 show_dts_mode, NULL, NOT_USED, index - 7), \
1542 SENSOR_ATTR_2(temp##index##_input, S_IRUGO, show_dts, \
1543 NULL, NOT_USED, index - 7), \
1544 SENSOR_ATTR_2(temp##index##_crit, S_IRUGO | S_IWUSR, show_dts_ext, \
1545 store_dts_ext, DTS_CRIT, NOT_USED), \
1546 SENSOR_ATTR_2(temp##index##_crit_hyst, S_IRUGO | S_IWUSR, \
1547 show_dts_ext, store_dts_ext, DTS_CRIT_HYST, NOT_USED), \
1548 SENSOR_ATTR_2(temp##index##_max, S_IRUGO | S_IWUSR, show_dts_ext, \
1549 store_dts_ext, DTS_WARN, NOT_USED), \
1550 SENSOR_ATTR_2(temp##index##_max_hyst, S_IRUGO | S_IWUSR, \
1551 show_dts_ext, store_dts_ext, DTS_WARN_HYST, NOT_USED), \
1552 SENSOR_ATTR_2(temp##index##_alarm, S_IRUGO, \
1553 show_alarm_beep, NULL, ALARM_STATUS, index + 17), \
1554 SENSOR_ATTR_2(temp##index##_beep, S_IWUSR | S_IRUGO, \
1555 show_alarm_beep, store_beep, BEEP_ENABLE, index + 17) }
1557 #define SENSOR_ATTR_TEMP(index) { \
1558 SENSOR_ATTR_2(temp##index##_type, S_IRUGO | S_IWUSR, \
1559 show_temp_mode, store_temp_mode, NOT_USED, index - 1), \
1560 SENSOR_ATTR_2(temp##index##_input, S_IRUGO, show_temp, \
1561 NULL, TEMP_READ, index - 1), \
1562 SENSOR_ATTR_2(temp##index##_crit, S_IRUGO | S_IWUSR, show_temp, \
1563 store_temp, TEMP_CRIT, index - 1), \
1564 SENSOR_ATTR_2(temp##index##_crit_hyst, S_IRUGO | S_IWUSR, \
1565 show_temp, store_temp, TEMP_CRIT_HYST, index - 1), \
1566 SENSOR_ATTR_2(temp##index##_max, S_IRUGO | S_IWUSR, show_temp, \
1567 store_temp, TEMP_WARN, index - 1), \
1568 SENSOR_ATTR_2(temp##index##_max_hyst, S_IRUGO | S_IWUSR, \
1569 show_temp, store_temp, TEMP_WARN_HYST, index - 1), \
1570 SENSOR_ATTR_2(temp##index##_alarm, S_IRUGO, \
1571 show_alarm_beep, NULL, ALARM_STATUS, \
1572 index + (index > 4 ? 11 : 17)), \
1573 SENSOR_ATTR_2(temp##index##_beep, S_IWUSR | S_IRUGO, \
1574 show_alarm_beep, store_beep, BEEP_ENABLE, \
1575 index + (index > 4 ? 11 : 17)), \
1576 SENSOR_ATTR_2(temp##index##_source_sel, S_IWUSR | S_IRUGO, \
1577 show_temp_src, store_temp_src, NOT_USED, index - 1), \
1578 SENSOR_ATTR_2(temp##index##_pwm_enable, S_IWUSR | S_IRUGO, \
1579 show_temp_pwm_enable, store_temp_pwm_enable, \
1580 TEMP_PWM_ENABLE, index - 1), \
1581 SENSOR_ATTR_2(temp##index##_auto_channels_pwm, S_IWUSR | S_IRUGO, \
1582 show_temp_pwm_enable, store_temp_pwm_enable, \
1583 TEMP_PWM_FAN_MAP, index - 1), \
1584 SENSOR_ATTR_2(thermal_cruise##index, S_IWUSR | S_IRUGO, \
1585 show_temp_pwm, store_temp_pwm, TEMP_PWM_TTTI, index - 1), \
1586 SENSOR_ATTR_2(temp##index##_warn, S_IWUSR | S_IRUGO, \
1587 show_temp_pwm, store_temp_pwm, TEMP_PWM_CTFS, index - 1), \
1588 SENSOR_ATTR_2(temp##index##_warn_hyst, S_IWUSR | S_IRUGO, \
1589 show_temp_pwm, store_temp_pwm, TEMP_PWM_HCT, index - 1), \
1590 SENSOR_ATTR_2(temp##index##_operation_hyst, S_IWUSR | S_IRUGO, \
1591 show_temp_pwm, store_temp_pwm, TEMP_PWM_HOT, index - 1), \
1592 SENSOR_ATTR_2(temp##index##_auto_point1_pwm, S_IRUGO | S_IWUSR, \
1593 show_sf4_pwm, store_sf4_pwm, 0, index - 1), \
1594 SENSOR_ATTR_2(temp##index##_auto_point2_pwm, S_IRUGO | S_IWUSR, \
1595 show_sf4_pwm, store_sf4_pwm, 1, index - 1), \
1596 SENSOR_ATTR_2(temp##index##_auto_point3_pwm, S_IRUGO | S_IWUSR, \
1597 show_sf4_pwm, store_sf4_pwm, 2, index - 1), \
1598 SENSOR_ATTR_2(temp##index##_auto_point4_pwm, S_IRUGO | S_IWUSR, \
1599 show_sf4_pwm, store_sf4_pwm, 3, index - 1), \
1600 SENSOR_ATTR_2(temp##index##_auto_point5_pwm, S_IRUGO | S_IWUSR, \
1601 show_sf4_pwm, store_sf4_pwm, 4, index - 1), \
1602 SENSOR_ATTR_2(temp##index##_auto_point6_pwm, S_IRUGO | S_IWUSR, \
1603 show_sf4_pwm, store_sf4_pwm, 5, index - 1), \
1604 SENSOR_ATTR_2(temp##index##_auto_point7_pwm, S_IRUGO | S_IWUSR, \
1605 show_sf4_pwm, store_sf4_pwm, 6, index - 1), \
1606 SENSOR_ATTR_2(temp##index##_auto_point1_temp, S_IRUGO | S_IWUSR,\
1607 show_sf4_temp, store_sf4_temp, 0, index - 1), \
1608 SENSOR_ATTR_2(temp##index##_auto_point2_temp, S_IRUGO | S_IWUSR,\
1609 show_sf4_temp, store_sf4_temp, 1, index - 1), \
1610 SENSOR_ATTR_2(temp##index##_auto_point3_temp, S_IRUGO | S_IWUSR,\
1611 show_sf4_temp, store_sf4_temp, 2, index - 1), \
1612 SENSOR_ATTR_2(temp##index##_auto_point4_temp, S_IRUGO | S_IWUSR,\
1613 show_sf4_temp, store_sf4_temp, 3, index - 1), \
1614 SENSOR_ATTR_2(temp##index##_auto_point5_temp, S_IRUGO | S_IWUSR,\
1615 show_sf4_temp, store_sf4_temp, 4, index - 1), \
1616 SENSOR_ATTR_2(temp##index##_auto_point6_temp, S_IRUGO | S_IWUSR,\
1617 show_sf4_temp, store_sf4_temp, 5, index - 1), \
1618 SENSOR_ATTR_2(temp##index##_auto_point7_temp, S_IRUGO | S_IWUSR,\
1619 show_sf4_temp, store_sf4_temp, 6, index - 1) }
1622 static struct sensor_device_attribute_2 w83795_in[][5] = {
1646 static const struct sensor_device_attribute_2 w83795_fan[][4] = {
1656 SENSOR_ATTR_FAN(10),
1657 SENSOR_ATTR_FAN(11),
1658 SENSOR_ATTR_FAN(12),
1659 SENSOR_ATTR_FAN(13),
1660 SENSOR_ATTR_FAN(14),
1663 static const struct sensor_device_attribute_2 w83795_temp[][29] = {
1664 SENSOR_ATTR_TEMP(1),
1665 SENSOR_ATTR_TEMP(2),
1666 SENSOR_ATTR_TEMP(3),
1667 SENSOR_ATTR_TEMP(4),
1668 SENSOR_ATTR_TEMP(5),
1669 SENSOR_ATTR_TEMP(6),
1672 static const struct sensor_device_attribute_2 w83795_dts[][8] = {
1676 SENSOR_ATTR_DTS(10),
1677 SENSOR_ATTR_DTS(11),
1678 SENSOR_ATTR_DTS(12),
1679 SENSOR_ATTR_DTS(13),
1680 SENSOR_ATTR_DTS(14),
1683 static const struct sensor_device_attribute_2 w83795_pwm[][7] = {
1694 static const struct sensor_device_attribute_2 sda_single_files[] = {
1695 SENSOR_ATTR_2(chassis, S_IWUSR | S_IRUGO, show_alarm_beep,
1696 store_chassis_clear, ALARM_STATUS, 46),
1697 SENSOR_ATTR_2(beep_enable, S_IWUSR | S_IRUGO, show_beep_enable,
1698 store_beep_enable, NOT_USED, NOT_USED),
1699 SENSOR_ATTR_2(speed_cruise_tolerance, S_IWUSR | S_IRUGO, show_fanin,
1700 store_fanin, FANIN_TOL, NOT_USED),
1701 SENSOR_ATTR_2(pwm_default, S_IWUSR | S_IRUGO, show_sf_setup,
1702 store_sf_setup, SETUP_PWM_DEFAULT, NOT_USED),
1703 SENSOR_ATTR_2(pwm_uptime, S_IWUSR | S_IRUGO, show_sf_setup,
1704 store_sf_setup, SETUP_PWM_UPTIME, NOT_USED),
1705 SENSOR_ATTR_2(pwm_downtime, S_IWUSR | S_IRUGO, show_sf_setup,
1706 store_sf_setup, SETUP_PWM_DOWNTIME, NOT_USED),
1713 static void w83795_init_client(struct i2c_client *client)
1715 struct w83795_data *data = i2c_get_clientdata(client);
1716 static const u16 clkin[4] = { /* in kHz */
1717 14318, 24000, 33333, 48000
1722 w83795_write(client, W83795_REG_CONFIG, 0x80);
1724 /* Start monitoring if needed */
1725 config = w83795_read(client, W83795_REG_CONFIG);
1726 if (!(config & W83795_REG_CONFIG_START)) {
1727 dev_info(&client->dev, "Enabling monitoring operations\n");
1728 w83795_write(client, W83795_REG_CONFIG,
1729 config | W83795_REG_CONFIG_START);
1732 data->clkin = clkin[(config >> 3) & 0x3];
1733 dev_dbg(&client->dev, "clkin = %u kHz\n", data->clkin);
1736 static int w83795_get_device_id(struct i2c_client *client)
1740 device_id = i2c_smbus_read_byte_data(client, W83795_REG_DEVICEID);
1742 /* Special case for rev. A chips; can't be checked first because later
1743 revisions emulate this for compatibility */
1744 if (device_id < 0 || (device_id & 0xf0) != 0x50) {
1747 alt_id = i2c_smbus_read_byte_data(client,
1748 W83795_REG_DEVICEID_A);
1756 /* Return 0 if detection is successful, -ENODEV otherwise */
1757 static int w83795_detect(struct i2c_client *client,
1758 struct i2c_board_info *info)
1760 int bank, vendor_id, device_id, expected, i2c_addr, config;
1761 struct i2c_adapter *adapter = client->adapter;
1762 unsigned short address = client->addr;
1763 const char *chip_name;
1765 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
1767 bank = i2c_smbus_read_byte_data(client, W83795_REG_BANKSEL);
1768 if (bank < 0 || (bank & 0x7c)) {
1769 dev_dbg(&adapter->dev,
1770 "w83795: Detection failed at addr 0x%02hx, check %s\n",
1775 /* Check Nuvoton vendor ID */
1776 vendor_id = i2c_smbus_read_byte_data(client, W83795_REG_VENDORID);
1777 expected = bank & 0x80 ? 0x5c : 0xa3;
1778 if (vendor_id != expected) {
1779 dev_dbg(&adapter->dev,
1780 "w83795: Detection failed at addr 0x%02hx, check %s\n",
1781 address, "vendor id");
1785 /* Check device ID */
1786 device_id = w83795_get_device_id(client) |
1787 (i2c_smbus_read_byte_data(client, W83795_REG_CHIPID) << 8);
1788 if ((device_id >> 4) != 0x795) {
1789 dev_dbg(&adapter->dev,
1790 "w83795: Detection failed at addr 0x%02hx, check %s\n",
1791 address, "device id\n");
1795 /* If Nuvoton chip, address of chip and W83795_REG_I2C_ADDR
1797 if ((bank & 0x07) == 0) {
1798 i2c_addr = i2c_smbus_read_byte_data(client,
1799 W83795_REG_I2C_ADDR);
1800 if ((i2c_addr & 0x7f) != address) {
1801 dev_dbg(&adapter->dev,
1802 "w83795: Detection failed at addr 0x%02hx, "
1803 "check %s\n", address, "i2c addr");
1808 /* Check 795 chip type: 795G or 795ADG
1809 Usually we don't write to chips during detection, but here we don't
1810 quite have the choice; hopefully it's OK, we are about to return
1812 if ((bank & 0x07) != 0)
1813 i2c_smbus_write_byte_data(client, W83795_REG_BANKSEL,
1815 config = i2c_smbus_read_byte_data(client, W83795_REG_CONFIG);
1816 if (config & W83795_REG_CONFIG_CONFIG48)
1817 chip_name = "w83795adg";
1819 chip_name = "w83795g";
1821 strlcpy(info->type, chip_name, I2C_NAME_SIZE);
1822 dev_info(&adapter->dev, "Found %s rev. %c at 0x%02hx\n", chip_name,
1823 'A' + (device_id & 0xf), address);
1828 static int w83795_handle_files(struct device *dev, int (*fn)(struct device *,
1829 const struct device_attribute *))
1831 struct w83795_data *data = dev_get_drvdata(dev);
1834 for (i = 0; i < ARRAY_SIZE(w83795_in); i++) {
1835 if (!(data->has_in & (1 << i)))
1837 for (j = 0; j < ARRAY_SIZE(w83795_in[0]); j++) {
1838 err = fn(dev, &w83795_in[i][j].dev_attr);
1844 for (i = 0; i < ARRAY_SIZE(w83795_fan); i++) {
1845 if (!(data->has_fan & (1 << i)))
1847 for (j = 0; j < ARRAY_SIZE(w83795_fan[0]); j++) {
1848 err = fn(dev, &w83795_fan[i][j].dev_attr);
1854 for (i = 0; i < ARRAY_SIZE(sda_single_files); i++) {
1855 err = fn(dev, &sda_single_files[i].dev_attr);
1860 for (i = 0; i < data->has_pwm; i++) {
1861 for (j = 0; j < ARRAY_SIZE(w83795_pwm[0]); j++) {
1862 err = fn(dev, &w83795_pwm[i][j].dev_attr);
1868 for (i = 0; i < ARRAY_SIZE(w83795_temp); i++) {
1869 if (!(data->has_temp & (1 << i)))
1871 for (j = 0; j < ARRAY_SIZE(w83795_temp[0]); j++) {
1872 err = fn(dev, &w83795_temp[i][j].dev_attr);
1878 if (data->enable_dts != 0) {
1879 for (i = 0; i < ARRAY_SIZE(w83795_dts); i++) {
1880 if (!(data->has_dts & (1 << i)))
1882 for (j = 0; j < ARRAY_SIZE(w83795_dts[0]); j++) {
1883 err = fn(dev, &w83795_dts[i][j].dev_attr);
1893 /* We need a wrapper that fits in w83795_handle_files */
1894 static int device_remove_file_wrapper(struct device *dev,
1895 const struct device_attribute *attr)
1897 device_remove_file(dev, attr);
1901 static void w83795_check_dynamic_in_limits(struct i2c_client *client)
1903 struct w83795_data *data = i2c_get_clientdata(client);
1905 int i, err_max, err_min;
1907 vid_ctl = w83795_read(client, W83795_REG_VID_CTRL);
1909 /* Return immediately if VRM isn't configured */
1910 if ((vid_ctl & 0x07) == 0x00 || (vid_ctl & 0x07) == 0x07)
1913 data->has_dyn_in = (vid_ctl >> 3) & 0x07;
1914 for (i = 0; i < 2; i++) {
1915 if (!(data->has_dyn_in & (1 << i)))
1918 /* Voltage limits in dynamic mode, switch to read-only */
1919 err_max = sysfs_chmod_file(&client->dev.kobj,
1920 &w83795_in[i][2].dev_attr.attr,
1922 err_min = sysfs_chmod_file(&client->dev.kobj,
1923 &w83795_in[i][3].dev_attr.attr,
1925 if (err_max || err_min)
1926 dev_warn(&client->dev, "Failed to set in%d limits "
1927 "read-only (%d, %d)\n", i, err_max, err_min);
1929 dev_info(&client->dev, "in%d limits set dynamically "
1934 /* Check pins that can be used for either temperature or voltage monitoring */
1935 static void w83795_apply_temp_config(struct w83795_data *data, u8 config,
1936 int temp_chan, int in_chan)
1938 /* config is a 2-bit value */
1940 case 0x2: /* Voltage monitoring */
1941 data->has_in |= 1 << in_chan;
1943 case 0x1: /* Thermal diode */
1946 data->temp_mode |= 1 << temp_chan;
1948 case 0x3: /* Thermistor */
1949 data->has_temp |= 1 << temp_chan;
1954 static int w83795_probe(struct i2c_client *client,
1955 const struct i2c_device_id *id)
1959 struct device *dev = &client->dev;
1960 struct w83795_data *data;
1963 data = kzalloc(sizeof(struct w83795_data), GFP_KERNEL);
1969 i2c_set_clientdata(client, data);
1970 data->chip_type = id->driver_data;
1971 data->bank = i2c_smbus_read_byte_data(client, W83795_REG_BANKSEL);
1972 mutex_init(&data->update_lock);
1974 /* Initialize the chip */
1975 w83795_init_client(client);
1977 /* Check which voltages and fans are present */
1978 data->has_in = w83795_read(client, W83795_REG_VOLT_CTRL1)
1979 | (w83795_read(client, W83795_REG_VOLT_CTRL2) << 8);
1980 data->has_fan = w83795_read(client, W83795_REG_FANIN_CTRL1)
1981 | (w83795_read(client, W83795_REG_FANIN_CTRL2) << 8);
1983 /* Check which analog temperatures and extra voltages are present */
1984 tmp = w83795_read(client, W83795_REG_TEMP_CTRL1);
1986 data->enable_dts = 1;
1987 w83795_apply_temp_config(data, (tmp >> 2) & 0x3, 5, 16);
1988 w83795_apply_temp_config(data, tmp & 0x3, 4, 15);
1989 tmp = w83795_read(client, W83795_REG_TEMP_CTRL2);
1990 w83795_apply_temp_config(data, tmp >> 6, 3, 20);
1991 w83795_apply_temp_config(data, (tmp >> 4) & 0x3, 2, 19);
1992 w83795_apply_temp_config(data, (tmp >> 2) & 0x3, 1, 18);
1993 w83795_apply_temp_config(data, tmp & 0x3, 0, 17);
1995 /* Check DTS enable status */
1996 if (data->enable_dts) {
1997 if (1 & w83795_read(client, W83795_REG_DTSC))
1998 data->enable_dts |= 2;
1999 data->has_dts = w83795_read(client, W83795_REG_DTSE);
2002 /* First update the voltages measured value and limits */
2003 for (i = 0; i < ARRAY_SIZE(data->in); i++) {
2004 if (!(data->has_in & (1 << i)))
2006 data->in[i][IN_MAX] =
2007 w83795_read(client, W83795_REG_IN[i][IN_MAX]);
2008 data->in[i][IN_LOW] =
2009 w83795_read(client, W83795_REG_IN[i][IN_LOW]);
2010 tmp = w83795_read(client, W83795_REG_IN[i][IN_READ]) << 2;
2011 tmp |= (w83795_read(client, W83795_REG_VRLSB)
2012 >> VRLSB_SHIFT) & 0x03;
2013 data->in[i][IN_READ] = tmp;
2015 for (i = 0; i < IN_LSB_REG_NUM; i++) {
2016 data->in_lsb[i][IN_MAX] =
2017 w83795_read(client, IN_LSB_REG(i, IN_MAX));
2018 data->in_lsb[i][IN_LOW] =
2019 w83795_read(client, IN_LSB_REG(i, IN_LOW));
2021 data->has_gain = w83795_read(client, W83795_REG_VMIGB_CTRL) & 0x0f;
2023 /* First update fan and limits */
2024 for (i = 0; i < ARRAY_SIZE(data->fan); i++) {
2025 if (!(data->has_fan & (1 << i)))
2028 w83795_read(client, W83795_REG_FAN_MIN_HL(i)) << 4;
2030 (w83795_read(client, W83795_REG_FAN_MIN_LSB(i)) >>
2031 W83795_REG_FAN_MIN_LSB_SHIFT(i)) & 0x0F;
2032 data->fan[i] = w83795_read(client, W83795_REG_FAN(i)) << 4;
2034 (w83795_read(client, W83795_REG_VRLSB) >> 4) & 0x0F;
2037 /* temperature and limits */
2038 for (i = 0; i < ARRAY_SIZE(data->temp); i++) {
2039 if (!(data->has_temp & (1 << i)))
2041 data->temp[i][TEMP_CRIT] =
2042 w83795_read(client, W83795_REG_TEMP[i][TEMP_CRIT]);
2043 data->temp[i][TEMP_CRIT_HYST] =
2044 w83795_read(client, W83795_REG_TEMP[i][TEMP_CRIT_HYST]);
2045 data->temp[i][TEMP_WARN] =
2046 w83795_read(client, W83795_REG_TEMP[i][TEMP_WARN]);
2047 data->temp[i][TEMP_WARN_HYST] =
2048 w83795_read(client, W83795_REG_TEMP[i][TEMP_WARN_HYST]);
2049 data->temp[i][TEMP_READ] =
2050 w83795_read(client, W83795_REG_TEMP[i][TEMP_READ]);
2051 data->temp_read_vrlsb[i] =
2052 w83795_read(client, W83795_REG_VRLSB);
2055 /* dts temperature and limits */
2056 if (data->enable_dts != 0) {
2057 data->dts_ext[DTS_CRIT] =
2058 w83795_read(client, W83795_REG_DTS_EXT(DTS_CRIT));
2059 data->dts_ext[DTS_CRIT_HYST] =
2060 w83795_read(client, W83795_REG_DTS_EXT(DTS_CRIT_HYST));
2061 data->dts_ext[DTS_WARN] =
2062 w83795_read(client, W83795_REG_DTS_EXT(DTS_WARN));
2063 data->dts_ext[DTS_WARN_HYST] =
2064 w83795_read(client, W83795_REG_DTS_EXT(DTS_WARN_HYST));
2065 for (i = 0; i < ARRAY_SIZE(data->dts); i++) {
2066 if (!(data->has_dts & (1 << i)))
2068 data->dts[i] = w83795_read(client, W83795_REG_DTS(i));
2069 data->dts_read_vrlsb[i] =
2070 w83795_read(client, W83795_REG_VRLSB);
2074 /* First update temp source selction */
2075 for (i = 0; i < 3; i++)
2076 data->temp_src[i] = w83795_read(client, W83795_REG_TSS(i));
2078 /* pwm and smart fan */
2079 if (data->chip_type == w83795g)
2083 data->pwm_fcms[0] = w83795_read(client, W83795_REG_FCMS1);
2084 data->pwm_fcms[1] = w83795_read(client, W83795_REG_FCMS2);
2085 for (i = 0; i < W83795_REG_TEMP_NUM; i++)
2086 data->pwm_tfmr[i] = w83795_read(client, W83795_REG_TFMR(i));
2087 data->pwm_fomc = w83795_read(client, W83795_REG_FOMC);
2088 for (i = 0; i < data->has_pwm; i++) {
2089 for (tmp = 0; tmp < 5; tmp++) {
2091 w83795_read(client, W83795_REG_PWM(i, tmp));
2094 for (i = 0; i < 8; i++) {
2095 data->target_speed[i] =
2096 w83795_read(client, W83795_REG_FTSH(i)) << 4;
2097 data->target_speed[i] |=
2098 w83795_read(client, W83795_REG_FTSL(i)) >> 4;
2100 data->tol_speed = w83795_read(client, W83795_REG_TFTS) & 0x3f;
2102 for (i = 0; i < W83795_REG_TEMP_NUM; i++) {
2103 data->pwm_temp[i][TEMP_PWM_TTTI] =
2104 w83795_read(client, W83795_REG_TTTI(i)) & 0x7f;
2105 data->pwm_temp[i][TEMP_PWM_CTFS] =
2106 w83795_read(client, W83795_REG_CTFS(i));
2107 tmp = w83795_read(client, W83795_REG_HT(i));
2108 data->pwm_temp[i][TEMP_PWM_HCT] = (tmp >> 4) & 0x0f;
2109 data->pwm_temp[i][TEMP_PWM_HOT] = tmp & 0x0f;
2111 for (i = 0; i < W83795_REG_TEMP_NUM; i++) {
2112 for (tmp = 0; tmp < 7; tmp++) {
2113 data->sf4_reg[i][SF4_TEMP][tmp] =
2115 W83795_REG_SF4_TEMP(i, tmp));
2116 data->sf4_reg[i][SF4_PWM][tmp] =
2117 w83795_read(client, W83795_REG_SF4_PWM(i, tmp));
2121 /* Setup PWM Register */
2122 for (i = 0; i < 3; i++) {
2123 data->setup_pwm[i] =
2124 w83795_read(client, W83795_REG_SETUP_PWM(i));
2127 /* alarm and beep */
2128 for (i = 0; i < ALARM_BEEP_REG_NUM; i++) {
2129 data->alarms[i] = w83795_read(client, W83795_REG_ALARM(i));
2130 data->beeps[i] = w83795_read(client, W83795_REG_BEEP(i));
2133 (w83795_read(client, W83795_REG_BEEP(5)) >> 7) & 0x01;
2135 err = w83795_handle_files(dev, device_create_file);
2139 if (data->chip_type == w83795g)
2140 w83795_check_dynamic_in_limits(client);
2142 data->hwmon_dev = hwmon_device_register(dev);
2143 if (IS_ERR(data->hwmon_dev)) {
2144 err = PTR_ERR(data->hwmon_dev);
2151 w83795_handle_files(dev, device_remove_file_wrapper);
2157 static int w83795_remove(struct i2c_client *client)
2159 struct w83795_data *data = i2c_get_clientdata(client);
2161 hwmon_device_unregister(data->hwmon_dev);
2162 w83795_handle_files(&client->dev, device_remove_file_wrapper);
2169 static const struct i2c_device_id w83795_id[] = {
2170 { "w83795g", w83795g },
2171 { "w83795adg", w83795adg },
2174 MODULE_DEVICE_TABLE(i2c, w83795_id);
2176 static struct i2c_driver w83795_driver = {
2180 .probe = w83795_probe,
2181 .remove = w83795_remove,
2182 .id_table = w83795_id,
2184 .class = I2C_CLASS_HWMON,
2185 .detect = w83795_detect,
2186 .address_list = normal_i2c,
2189 static int __init sensors_w83795_init(void)
2191 return i2c_add_driver(&w83795_driver);
2194 static void __exit sensors_w83795_exit(void)
2196 i2c_del_driver(&w83795_driver);
2199 MODULE_AUTHOR("Wei Song");
2200 MODULE_DESCRIPTION("W83795G/ADG hardware monitoring driver");
2201 MODULE_LICENSE("GPL");
2203 module_init(sensors_w83795_init);
2204 module_exit(sensors_w83795_exit);