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[mirror_ubuntu-bionic-kernel.git] / drivers / hwmon / lm63.c
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1da177e4
LT		 1/*
2 * lm63.c - driver for the National Semiconductor LM63 temperature sensor
3 * with integrated fan control
d5957be2 4 * Copyright (C) 2004-2008 Jean Delvare <khali@linux-fr.org>
1da177e4
LT		 5 * Based on the lm90 driver.
6 *
7 * The LM63 is a sensor chip made by National Semiconductor. It measures
8 * two temperatures (its own and one external one) and the speed of one
9 * fan, those speed it can additionally control. Complete datasheet can be
10 * obtained from National's website at:
11 * http://www.national.com/pf/LM/LM63.html
12 *
13 * The LM63 is basically an LM86 with fan speed monitoring and control
14 * capabilities added. It misses some of the LM86 features though:
15 * - No low limit for local temperature.
16 * - No critical limit for local temperature.
17 * - Critical limit for remote temperature can be changed only once. We
18 * will consider that the critical limit is read-only.
19 *
20 * The datasheet isn't very clear about what the tachometer reading is.
21 * I had a explanation from National Semiconductor though. The two lower
22 * bits of the read value have to be masked out. The value is still 16 bit
23 * in width.
24 *
25 * This program is free software; you can redistribute it and/or modify
26 * it under the terms of the GNU General Public License as published by
27 * the Free Software Foundation; either version 2 of the License, or
28 * (at your option) any later version.
29 *
30 * This program is distributed in the hope that it will be useful,
31 * but WITHOUT ANY WARRANTY; without even the implied warranty of
32 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
33 * GNU General Public License for more details.
34 *
35 * You should have received a copy of the GNU General Public License
36 * along with this program; if not, write to the Free Software
37 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
38 */
39
1da177e4
LT		 40#include <linux/module.h>
41#include <linux/init.h>
42#include <linux/slab.h>
43#include <linux/jiffies.h>
44#include <linux/i2c.h>
10c08f81 45#include <linux/hwmon-sysfs.h>
943b0830
MH		 46#include <linux/hwmon.h>
47#include <linux/err.h>
9a61bf63 48#include <linux/mutex.h>
0e39e01c 49#include <linux/sysfs.h>
210961c4 50#include <linux/types.h>
1da177e4
LT		 51
52/*
53 * Addresses to scan
d93ab780
JD		 54 * Address is fully defined internally and cannot be changed except for
55 * LM64 which has one pin dedicated to address selection.
56 * LM63 and LM96163 have address 0x4c.
57 * LM64 can have address 0x18 or 0x4e.
1da177e4
LT		 58 */
59
10f2ed31 60static const unsigned short normal_i2c[] = { 0x18, 0x4c, 0x4e, I2C_CLIENT_END };
1da177e4 61
1da177e4
LT		 62/*
63 * The LM63 registers
64 */
65
66#define LM63_REG_CONFIG1 0x03
04738b2b 67#define LM63_REG_CONVRATE 0x04
1da177e4
LT		 68#define LM63_REG_CONFIG2 0xBF
69#define LM63_REG_CONFIG_FAN 0x4A
70
71#define LM63_REG_TACH_COUNT_MSB 0x47
72#define LM63_REG_TACH_COUNT_LSB 0x46
73#define LM63_REG_TACH_LIMIT_MSB 0x49
74#define LM63_REG_TACH_LIMIT_LSB 0x48
75
76#define LM63_REG_PWM_VALUE 0x4C
77#define LM63_REG_PWM_FREQ 0x4D
d216f680
JD		 78#define LM63_REG_LUT_TEMP_HYST 0x4F
79#define LM63_REG_LUT_TEMP(nr) (0x50 + 2 * (nr))
80#define LM63_REG_LUT_PWM(nr) (0x51 + 2 * (nr))
1da177e4
LT		 81
82#define LM63_REG_LOCAL_TEMP 0x00
83#define LM63_REG_LOCAL_HIGH 0x05
84
85#define LM63_REG_REMOTE_TEMP_MSB 0x01
86#define LM63_REG_REMOTE_TEMP_LSB 0x10
87#define LM63_REG_REMOTE_OFFSET_MSB 0x11
88#define LM63_REG_REMOTE_OFFSET_LSB 0x12
89#define LM63_REG_REMOTE_HIGH_MSB 0x07
90#define LM63_REG_REMOTE_HIGH_LSB 0x13
91#define LM63_REG_REMOTE_LOW_MSB 0x08
92#define LM63_REG_REMOTE_LOW_LSB 0x14
93#define LM63_REG_REMOTE_TCRIT 0x19
94#define LM63_REG_REMOTE_TCRIT_HYST 0x21
95
96#define LM63_REG_ALERT_STATUS 0x02
97#define LM63_REG_ALERT_MASK 0x16
98
99#define LM63_REG_MAN_ID 0xFE
100#define LM63_REG_CHIP_ID 0xFF
101
f496b2d4 102#define LM96163_REG_TRUTHERM 0x30
e872c91e
GR		 103#define LM96163_REG_REMOTE_TEMP_U_MSB 0x31
104#define LM96163_REG_REMOTE_TEMP_U_LSB 0x32
210961c4
GR		 105#define LM96163_REG_CONFIG_ENHANCED 0x45
106
04738b2b
GR		 107#define LM63_MAX_CONVRATE 9
108
109#define LM63_MAX_CONVRATE_HZ 32
110#define LM96163_MAX_CONVRATE_HZ 26
111
1da177e4
LT		 112/*
113 * Conversions and various macros
114 * For tachometer counts, the LM63 uses 16-bit values.
115 * For local temperature and high limit, remote critical limit and hysteresis
44bbe87e 116 * value, it uses signed 8-bit values with LSB = 1 degree Celsius.
1da177e4 117 * For remote temperature, low and high limits, it uses signed 11-bit values
44bbe87e 118 * with LSB = 0.125 degree Celsius, left-justified in 16-bit registers.
2778fb13
DE		 119 * For LM64 the actual remote diode temperature is 16 degree Celsius higher
120 * than the register reading. Remote temperature setpoints have to be
121 * adapted accordingly.
1da177e4
LT		 122 */
123
124#define FAN_FROM_REG(reg) ((reg) == 0xFFFC || (reg) == 0 ? 0 : \
125 5400000 / (reg))
126#define FAN_TO_REG(val) ((val) <= 82 ? 0xFFFC : \
127 (5400000 / (val)) & 0xFFFC)
128#define TEMP8_FROM_REG(reg) ((reg) * 1000)
129#define TEMP8_TO_REG(val) ((val) <= -128000 ? -128 : \
130 (val) >= 127000 ? 127 : \
131 (val) < 0 ? ((val) - 500) / 1000 : \
132 ((val) + 500) / 1000)
94e55df4
GR		 133#define TEMP8U_TO_REG(val) ((val) <= 0 ? 0 : \
134 (val) >= 255000 ? 255 : \
135 ((val) + 500) / 1000)
1da177e4
LT		 136#define TEMP11_FROM_REG(reg) ((reg) / 32 * 125)
137#define TEMP11_TO_REG(val) ((val) <= -128000 ? 0x8000 : \
138 (val) >= 127875 ? 0x7FE0 : \
139 (val) < 0 ? ((val) - 62) / 125 * 32 : \
140 ((val) + 62) / 125 * 32)
e872c91e
GR		 141#define TEMP11U_TO_REG(val) ((val) <= 0 ? 0 : \
142 (val) >= 255875 ? 0xFFE0 : \
143 ((val) + 62) / 125 * 32)
1da177e4
LT		 144#define HYST_TO_REG(val) ((val) <= 0 ? 0 : \
145 (val) >= 127000 ? 127 : \
146 ((val) + 500) / 1000)
147
04738b2b
GR		 148#define UPDATE_INTERVAL(max, rate) \
149 ((1000 << (LM63_MAX_CONVRATE - (rate))) / (max))
150
1da177e4
LT		 151/*
152 * Functions declaration
153 */
154
d5957be2
JD		 155static int lm63_probe(struct i2c_client *client,
156 const struct i2c_device_id *id);
157static int lm63_remove(struct i2c_client *client);
1da177e4
LT		 158
159static struct lm63_data *lm63_update_device(struct device *dev);
160
310ec792 161static int lm63_detect(struct i2c_client *client, struct i2c_board_info *info);
1da177e4
LT		 162static void lm63_init_client(struct i2c_client *client);
163
210961c4 164enum chips { lm63, lm64, lm96163 };
10f2ed31 165
1da177e4
LT		 166/*
167 * Driver data (common to all clients)
168 */
169
d5957be2 170static const struct i2c_device_id lm63_id[] = {
10f2ed31
MG		 171 { "lm63", lm63 },
172 { "lm64", lm64 },
210961c4 173 { "lm96163", lm96163 },
d5957be2
JD		 174 { }
175};
176MODULE_DEVICE_TABLE(i2c, lm63_id);
177
1da177e4 178static struct i2c_driver lm63_driver = {
d5957be2 179 .class = I2C_CLASS_HWMON,
cdaf7934 180 .driver = {
cdaf7934
LR		 181 .name = "lm63",
182 },
d5957be2
JD		 183 .probe = lm63_probe,
184 .remove = lm63_remove,
185 .id_table = lm63_id,
186 .detect = lm63_detect,
c3813d6a 187 .address_list = normal_i2c,
1da177e4
LT		 188};
189
190/*
191 * Client data (each client gets its own)
192 */
193
194struct lm63_data {
1beeffe4 195 struct device *hwmon_dev;
9a61bf63 196 struct mutex update_lock;
1da177e4 197 char valid; /* zero until following fields are valid */
d216f680 198 char lut_valid; /* zero until lut fields are valid */
1da177e4 199 unsigned long last_updated; /* in jiffies */
d216f680 200 unsigned long lut_last_updated; /* in jiffies */
04738b2b 201 enum chips kind;
2778fb13 202 int temp2_offset;
1da177e4 203
04738b2b
GR		 204 int update_interval; /* in milliseconds */
205 int max_convrate_hz;
2fe28ab5 206 int lut_size; /* 8 or 12 */
04738b2b 207
1da177e4
LT		 208 /* registers values */
209 u8 config, config_fan;
bc51ae11
JD		 210 u16 fan[2]; /* 0: input
211 1: low limit */
1da177e4 212 u8 pwm1_freq;
2fe28ab5
JD		 213 u8 pwm1[13]; /* 0: current output
214 1-12: lookup table */
215 s8 temp8[15]; /* 0: local input
bc51ae11 216 1: local high limit
d216f680 217 2: remote critical limit
2fe28ab5 218 3-14: lookup table */
786375f7 219 s16 temp11[4]; /* 0: remote input
bc51ae11 220 1: remote low limit
786375f7
GR		 221 2: remote high limit
222 3: remote offset */
e872c91e 223 u16 temp11u; /* remote input (unsigned) */
1da177e4 224 u8 temp2_crit_hyst;
d216f680 225 u8 lut_temp_hyst;
1da177e4 226 u8 alarms;
210961c4 227 bool pwm_highres;
d216f680 228 bool lut_temp_highres;
e872c91e 229 bool remote_unsigned; /* true if unsigned remote upper limits */
f496b2d4 230 bool trutherm;
1da177e4
LT		 231};
232
e872c91e
GR		 233static inline int temp8_from_reg(struct lm63_data *data, int nr)
234{
235 if (data->remote_unsigned)
236 return TEMP8_FROM_REG((u8)data->temp8[nr]);
237 return TEMP8_FROM_REG(data->temp8[nr]);
238}
239
d216f680
JD		 240static inline int lut_temp_from_reg(struct lm63_data *data, int nr)
241{
242 return data->temp8[nr] * (data->lut_temp_highres ? 500 : 1000);
243}
244
1da177e4
LT		 245/*
246 * Sysfs callback functions and files
247 */
248
bc51ae11
JD		 249static ssize_t show_fan(struct device *dev, struct device_attribute *devattr,
250 char *buf)
251{
252 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
253 struct lm63_data *data = lm63_update_device(dev);
254 return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[attr->index]));
1da177e4 255}
1da177e4 256
bc51ae11
JD		 257static ssize_t set_fan(struct device *dev, struct device_attribute *dummy,
258 const char *buf, size_t count)
1da177e4
LT		 259{
260 struct i2c_client *client = to_i2c_client(dev);
261 struct lm63_data *data = i2c_get_clientdata(client);
662bda28
GR		 262 unsigned long val;
263 int err;
264
265 err = kstrtoul(buf, 10, &val);
266 if (err)
267 return err;
1da177e4 268
9a61bf63 269 mutex_lock(&data->update_lock);
bc51ae11 270 data->fan[1] = FAN_TO_REG(val);
1da177e4 271 i2c_smbus_write_byte_data(client, LM63_REG_TACH_LIMIT_LSB,
bc51ae11 272 data->fan[1] & 0xFF);
1da177e4 273 i2c_smbus_write_byte_data(client, LM63_REG_TACH_LIMIT_MSB,
bc51ae11 274 data->fan[1] >> 8);
9a61bf63 275 mutex_unlock(&data->update_lock);
1da177e4
LT		 276 return count;
277}
278
d216f680 279static ssize_t show_pwm1(struct device *dev, struct device_attribute *devattr,
bc51ae11 280 char *buf)
1da177e4 281{
d216f680 282 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
1da177e4 283 struct lm63_data *data = lm63_update_device(dev);
d216f680 284 int nr = attr->index;
210961c4
GR		 285 int pwm;
286
287 if (data->pwm_highres)
d216f680 288 pwm = data->pwm1[nr];
210961c4 289 else
d216f680
JD		 290 pwm = data->pwm1[nr] >= 2 * data->pwm1_freq ?
291 255 : (data->pwm1[nr] * 255 + data->pwm1_freq) /
210961c4
GR		 292 (2 * data->pwm1_freq);
293
294 return sprintf(buf, "%d\n", pwm);
1da177e4
LT		 295}
296
bc51ae11
JD		 297static ssize_t set_pwm1(struct device *dev, struct device_attribute *dummy,
298 const char *buf, size_t count)
1da177e4
LT		 299{
300 struct i2c_client *client = to_i2c_client(dev);
301 struct lm63_data *data = i2c_get_clientdata(client);
302 unsigned long val;
662bda28
GR		 303 int err;
304
1da177e4
LT		 305 if (!(data->config_fan & 0x20)) /* register is read-only */
306 return -EPERM;
307
662bda28
GR		 308 err = kstrtoul(buf, 10, &val);
309 if (err)
310 return err;
311
210961c4 312 val = SENSORS_LIMIT(val, 0, 255);
9a61bf63 313 mutex_lock(&data->update_lock);
d216f680
JD		 314 data->pwm1[0] = data->pwm_highres ? val :
315 (val * data->pwm1_freq * 2 + 127) / 255;
316 i2c_smbus_write_byte_data(client, LM63_REG_PWM_VALUE, data->pwm1[0]);
9a61bf63 317 mutex_unlock(&data->update_lock);
1da177e4
LT		 318 return count;
319}
320
662bda28
GR		 321static ssize_t show_pwm1_enable(struct device *dev,
322 struct device_attribute *dummy, char *buf)
1da177e4
LT		 323{
324 struct lm63_data *data = lm63_update_device(dev);
325 return sprintf(buf, "%d\n", data->config_fan & 0x20 ? 1 : 2);
326}
327
2778fb13
DE		 328/*
329 * There are 8bit registers for both local(temp1) and remote(temp2) sensor.
330 * For remote sensor registers temp2_offset has to be considered,
331 * for local sensor it must not.
332 * So we need separate 8bit accessors for local and remote sensor.
333 */
334static ssize_t show_local_temp8(struct device *dev,
335 struct device_attribute *devattr,
336 char *buf)
bc51ae11
JD		 337{
338 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
339 struct lm63_data *data = lm63_update_device(dev);
340 return sprintf(buf, "%d\n", TEMP8_FROM_REG(data->temp8[attr->index]));
1da177e4 341}
bc51ae11 342
2778fb13
DE		 343static ssize_t show_remote_temp8(struct device *dev,
344 struct device_attribute *devattr,
345 char *buf)
346{
347 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
348 struct lm63_data *data = lm63_update_device(dev);
e872c91e 349 return sprintf(buf, "%d\n", temp8_from_reg(data, attr->index)
2778fb13
DE		 350 + data->temp2_offset);
351}
352
d216f680
JD		 353static ssize_t show_lut_temp(struct device *dev,
354 struct device_attribute *devattr,
355 char *buf)
356{
357 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
358 struct lm63_data *data = lm63_update_device(dev);
359 return sprintf(buf, "%d\n", lut_temp_from_reg(data, attr->index)
360 + data->temp2_offset);
361}
362
94e55df4
GR		 363static ssize_t set_temp8(struct device *dev, struct device_attribute *devattr,
364 const char *buf, size_t count)
bc51ae11 365{
94e55df4 366 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
bc51ae11
JD		 367 struct i2c_client *client = to_i2c_client(dev);
368 struct lm63_data *data = i2c_get_clientdata(client);
94e55df4
GR		 369 int nr = attr->index;
370 int reg = nr == 2 ? LM63_REG_REMOTE_TCRIT : LM63_REG_LOCAL_HIGH;
662bda28
GR		 371 long val;
372 int err;
94e55df4 373 int temp;
662bda28
GR		 374
375 err = kstrtol(buf, 10, &val);
376 if (err)
377 return err;
bc51ae11 378
9a61bf63 379 mutex_lock(&data->update_lock);
94e55df4
GR		 380 if (nr == 2) {
381 if (data->remote_unsigned)
382 temp = TEMP8U_TO_REG(val - data->temp2_offset);
383 else
384 temp = TEMP8_TO_REG(val - data->temp2_offset);
385 } else {
386 temp = TEMP8_TO_REG(val);
387 }
388 data->temp8[nr] = temp;
389 i2c_smbus_write_byte_data(client, reg, temp);
9a61bf63 390 mutex_unlock(&data->update_lock);
bc51ae11 391 return count;
1da177e4 392}
bc51ae11
JD		 393
394static ssize_t show_temp11(struct device *dev, struct device_attribute *devattr,
395 char *buf)
396{
397 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
398 struct lm63_data *data = lm63_update_device(dev);
e872c91e
GR		 399 int nr = attr->index;
400 int temp;
401
402 if (!nr) {
403 /*
404 * Use unsigned temperature unless its value is zero.
405 * If it is zero, use signed temperature.
406 */
407 if (data->temp11u)
408 temp = TEMP11_FROM_REG(data->temp11u);
409 else
410 temp = TEMP11_FROM_REG(data->temp11[nr]);
411 } else {
412 if (data->remote_unsigned && nr == 2)
413 temp = TEMP11_FROM_REG((u16)data->temp11[nr]);
414 else
415 temp = TEMP11_FROM_REG(data->temp11[nr]);
416 }
417 return sprintf(buf, "%d\n", temp + data->temp2_offset);
1da177e4 418}
bc51ae11
JD		 419
420static ssize_t set_temp11(struct device *dev, struct device_attribute *devattr,
421 const char *buf, size_t count)
422{
786375f7 423 static const u8 reg[6] = {
bc51ae11
JD		 424 LM63_REG_REMOTE_LOW_MSB,
425 LM63_REG_REMOTE_LOW_LSB,
426 LM63_REG_REMOTE_HIGH_MSB,
427 LM63_REG_REMOTE_HIGH_LSB,
786375f7
GR		 428 LM63_REG_REMOTE_OFFSET_MSB,
429 LM63_REG_REMOTE_OFFSET_LSB,
bc51ae11
JD		 430 };
431
432 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
433 struct i2c_client *client = to_i2c_client(dev);
434 struct lm63_data *data = i2c_get_clientdata(client);
662bda28
GR		 435 long val;
436 int err;
bc51ae11
JD		 437 int nr = attr->index;
438
662bda28
GR		 439 err = kstrtol(buf, 10, &val);
440 if (err)
441 return err;
442
9a61bf63 443 mutex_lock(&data->update_lock);
e872c91e
GR		 444 if (data->remote_unsigned && nr == 2)
445 data->temp11[nr] = TEMP11U_TO_REG(val - data->temp2_offset);
446 else
447 data->temp11[nr] = TEMP11_TO_REG(val - data->temp2_offset);
448
bc51ae11
JD		 449 i2c_smbus_write_byte_data(client, reg[(nr - 1) * 2],
450 data->temp11[nr] >> 8);
451 i2c_smbus_write_byte_data(client, reg[(nr - 1) * 2 + 1],
452 data->temp11[nr] & 0xff);
9a61bf63 453 mutex_unlock(&data->update_lock);
bc51ae11 454 return count;
1da177e4 455}
1da177e4 456
662bda28
GR		 457/*
458 * Hysteresis register holds a relative value, while we want to present
459 * an absolute to user-space
460 */
461static ssize_t show_temp2_crit_hyst(struct device *dev,
462 struct device_attribute *dummy, char *buf)
1da177e4
LT		 463{
464 struct lm63_data *data = lm63_update_device(dev);
e872c91e 465 return sprintf(buf, "%d\n", temp8_from_reg(data, 2)
2778fb13 466 + data->temp2_offset
1da177e4
LT		 467 - TEMP8_FROM_REG(data->temp2_crit_hyst));
468}
469
d216f680
JD		 470static ssize_t show_lut_temp_hyst(struct device *dev,
471 struct device_attribute *devattr, char *buf)
472{
473 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
474 struct lm63_data *data = lm63_update_device(dev);
475
476 return sprintf(buf, "%d\n", lut_temp_from_reg(data, attr->index)
477 + data->temp2_offset
478 - TEMP8_FROM_REG(data->lut_temp_hyst));
479}
480
662bda28
GR		 481/*
482 * And now the other way around, user-space provides an absolute
483 * hysteresis value and we have to store a relative one
484 */
485static ssize_t set_temp2_crit_hyst(struct device *dev,
486 struct device_attribute *dummy,
bc51ae11 487 const char *buf, size_t count)
1da177e4
LT		 488{
489 struct i2c_client *client = to_i2c_client(dev);
490 struct lm63_data *data = i2c_get_clientdata(client);
662bda28
GR		 491 long val;
492 int err;
1da177e4
LT		 493 long hyst;
494
662bda28
GR		 495 err = kstrtol(buf, 10, &val);
496 if (err)
497 return err;
498
9a61bf63 499 mutex_lock(&data->update_lock);
e872c91e 500 hyst = temp8_from_reg(data, 2) + data->temp2_offset - val;
1da177e4
LT		 501 i2c_smbus_write_byte_data(client, LM63_REG_REMOTE_TCRIT_HYST,
502 HYST_TO_REG(hyst));
9a61bf63 503 mutex_unlock(&data->update_lock);
1da177e4
LT		 504 return count;
505}
506
04738b2b
GR		 507/*
508 * Set conversion rate.
509 * client->update_lock must be held when calling this function.
510 */
511static void lm63_set_convrate(struct i2c_client *client, struct lm63_data *data,
512 unsigned int interval)
513{
514 int i;
515 unsigned int update_interval;
516
517 /* Shift calculations to avoid rounding errors */
518 interval <<= 6;
519
520 /* find the nearest update rate */
521 update_interval = (1 << (LM63_MAX_CONVRATE + 6)) * 1000
522 / data->max_convrate_hz;
523 for (i = 0; i < LM63_MAX_CONVRATE; i++, update_interval >>= 1)
524 if (interval >= update_interval * 3 / 4)
525 break;
526
527 i2c_smbus_write_byte_data(client, LM63_REG_CONVRATE, i);
528 data->update_interval = UPDATE_INTERVAL(data->max_convrate_hz, i);
529}
530
531static ssize_t show_update_interval(struct device *dev,
532 struct device_attribute *attr, char *buf)
533{
534 struct lm63_data *data = dev_get_drvdata(dev);
535
536 return sprintf(buf, "%u\n", data->update_interval);
537}
538
539static ssize_t set_update_interval(struct device *dev,
540 struct device_attribute *attr,
541 const char *buf, size_t count)
542{
543 struct i2c_client *client = to_i2c_client(dev);
544 struct lm63_data *data = i2c_get_clientdata(client);
545 unsigned long val;
546 int err;
547
548 err = kstrtoul(buf, 10, &val);
549 if (err)
550 return err;
551
552 mutex_lock(&data->update_lock);
553 lm63_set_convrate(client, data, SENSORS_LIMIT(val, 0, 100000));
554 mutex_unlock(&data->update_lock);
555
556 return count;
557}
558
f496b2d4
GR		 559static ssize_t show_type(struct device *dev, struct device_attribute *attr,
560 char *buf)
561{
562 struct i2c_client *client = to_i2c_client(dev);
563 struct lm63_data *data = i2c_get_clientdata(client);
564
565 return sprintf(buf, data->trutherm ? "1\n" : "2\n");
566}
567
568static ssize_t set_type(struct device *dev, struct device_attribute *attr,
569 const char *buf, size_t count)
570{
571 struct i2c_client *client = to_i2c_client(dev);
572 struct lm63_data *data = i2c_get_clientdata(client);
573 unsigned long val;
574 int ret;
575 u8 reg;
576
577 ret = kstrtoul(buf, 10, &val);
578 if (ret < 0)
579 return ret;
580 if (val != 1 && val != 2)
581 return -EINVAL;
582
583 mutex_lock(&data->update_lock);
584 data->trutherm = val == 1;
585 reg = i2c_smbus_read_byte_data(client, LM96163_REG_TRUTHERM) & ~0x02;
586 i2c_smbus_write_byte_data(client, LM96163_REG_TRUTHERM,
587 reg | (data->trutherm ? 0x02 : 0x00));
588 data->valid = 0;
589 mutex_unlock(&data->update_lock);
590
591 return count;
592}
593
bc51ae11
JD		 594static ssize_t show_alarms(struct device *dev, struct device_attribute *dummy,
595 char *buf)
1da177e4
LT		 596{
597 struct lm63_data *data = lm63_update_device(dev);
598 return sprintf(buf, "%u\n", data->alarms);
599}
600
2d45771e
JD		 601static ssize_t show_alarm(struct device *dev, struct device_attribute *devattr,
602 char *buf)
603{
604 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
605 struct lm63_data *data = lm63_update_device(dev);
606 int bitnr = attr->index;
607
608 return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1);
609}
610
bc51ae11
JD		 611static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0);
612static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan,
613 set_fan, 1);
1da177e4 614
d216f680 615static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm1, set_pwm1, 0);
1da177e4 616static DEVICE_ATTR(pwm1_enable, S_IRUGO, show_pwm1_enable, NULL);
d216f680
JD		 617static SENSOR_DEVICE_ATTR(pwm1_auto_point1_pwm, S_IRUGO, show_pwm1, NULL, 1);
618static SENSOR_DEVICE_ATTR(pwm1_auto_point1_temp, S_IRUGO,
619 show_lut_temp, NULL, 3);
620static SENSOR_DEVICE_ATTR(pwm1_auto_point1_temp_hyst, S_IRUGO,
621 show_lut_temp_hyst, NULL, 3);
622static SENSOR_DEVICE_ATTR(pwm1_auto_point2_pwm, S_IRUGO, show_pwm1, NULL, 2);
623static SENSOR_DEVICE_ATTR(pwm1_auto_point2_temp, S_IRUGO,
624 show_lut_temp, NULL, 4);
625static SENSOR_DEVICE_ATTR(pwm1_auto_point2_temp_hyst, S_IRUGO,
626 show_lut_temp_hyst, NULL, 4);
627static SENSOR_DEVICE_ATTR(pwm1_auto_point3_pwm, S_IRUGO, show_pwm1, NULL, 3);
628static SENSOR_DEVICE_ATTR(pwm1_auto_point3_temp, S_IRUGO,
629 show_lut_temp, NULL, 5);
630static SENSOR_DEVICE_ATTR(pwm1_auto_point3_temp_hyst, S_IRUGO,
631 show_lut_temp_hyst, NULL, 5);
632static SENSOR_DEVICE_ATTR(pwm1_auto_point4_pwm, S_IRUGO, show_pwm1, NULL, 4);
633static SENSOR_DEVICE_ATTR(pwm1_auto_point4_temp, S_IRUGO,
634 show_lut_temp, NULL, 6);
635static SENSOR_DEVICE_ATTR(pwm1_auto_point4_temp_hyst, S_IRUGO,
636 show_lut_temp_hyst, NULL, 6);
637static SENSOR_DEVICE_ATTR(pwm1_auto_point5_pwm, S_IRUGO, show_pwm1, NULL, 5);
638static SENSOR_DEVICE_ATTR(pwm1_auto_point5_temp, S_IRUGO,
639 show_lut_temp, NULL, 7);
640static SENSOR_DEVICE_ATTR(pwm1_auto_point5_temp_hyst, S_IRUGO,
641 show_lut_temp_hyst, NULL, 7);
642static SENSOR_DEVICE_ATTR(pwm1_auto_point6_pwm, S_IRUGO, show_pwm1, NULL, 6);
643static SENSOR_DEVICE_ATTR(pwm1_auto_point6_temp, S_IRUGO,
644 show_lut_temp, NULL, 8);
645static SENSOR_DEVICE_ATTR(pwm1_auto_point6_temp_hyst, S_IRUGO,
646 show_lut_temp_hyst, NULL, 8);
647static SENSOR_DEVICE_ATTR(pwm1_auto_point7_pwm, S_IRUGO, show_pwm1, NULL, 7);
648static SENSOR_DEVICE_ATTR(pwm1_auto_point7_temp, S_IRUGO,
649 show_lut_temp, NULL, 9);
650static SENSOR_DEVICE_ATTR(pwm1_auto_point7_temp_hyst, S_IRUGO,
651 show_lut_temp_hyst, NULL, 9);
652static SENSOR_DEVICE_ATTR(pwm1_auto_point8_pwm, S_IRUGO, show_pwm1, NULL, 8);
653static SENSOR_DEVICE_ATTR(pwm1_auto_point8_temp, S_IRUGO,
654 show_lut_temp, NULL, 10);
655static SENSOR_DEVICE_ATTR(pwm1_auto_point8_temp_hyst, S_IRUGO,
656 show_lut_temp_hyst, NULL, 10);
2fe28ab5
JD		 657static SENSOR_DEVICE_ATTR(pwm1_auto_point9_pwm, S_IRUGO, show_pwm1, NULL, 9);
658static SENSOR_DEVICE_ATTR(pwm1_auto_point9_temp, S_IRUGO,
659 show_lut_temp, NULL, 11);
660static SENSOR_DEVICE_ATTR(pwm1_auto_point9_temp_hyst, S_IRUGO,
661 show_lut_temp_hyst, NULL, 11);
662static SENSOR_DEVICE_ATTR(pwm1_auto_point10_pwm, S_IRUGO, show_pwm1, NULL, 10);
663static SENSOR_DEVICE_ATTR(pwm1_auto_point10_temp, S_IRUGO,
664 show_lut_temp, NULL, 12);
665static SENSOR_DEVICE_ATTR(pwm1_auto_point10_temp_hyst, S_IRUGO,
666 show_lut_temp_hyst, NULL, 12);
667static SENSOR_DEVICE_ATTR(pwm1_auto_point11_pwm, S_IRUGO, show_pwm1, NULL, 11);
668static SENSOR_DEVICE_ATTR(pwm1_auto_point11_temp, S_IRUGO,
669 show_lut_temp, NULL, 13);
670static SENSOR_DEVICE_ATTR(pwm1_auto_point11_temp_hyst, S_IRUGO,
671 show_lut_temp_hyst, NULL, 13);
672static SENSOR_DEVICE_ATTR(pwm1_auto_point12_pwm, S_IRUGO, show_pwm1, NULL, 12);
673static SENSOR_DEVICE_ATTR(pwm1_auto_point12_temp, S_IRUGO,
674 show_lut_temp, NULL, 14);
675static SENSOR_DEVICE_ATTR(pwm1_auto_point12_temp_hyst, S_IRUGO,
676 show_lut_temp_hyst, NULL, 14);
1da177e4 677
2778fb13
DE		 678static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_local_temp8, NULL, 0);
679static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_local_temp8,
94e55df4 680 set_temp8, 1);
1da177e4 681
bc51ae11
JD		 682static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp11, NULL, 0);
683static SENSOR_DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_temp11,
684 set_temp11, 1);
685static SENSOR_DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp11,
686 set_temp11, 2);
786375f7
GR		 687static SENSOR_DEVICE_ATTR(temp2_offset, S_IWUSR | S_IRUGO, show_temp11,
688 set_temp11, 3);
2778fb13 689static SENSOR_DEVICE_ATTR(temp2_crit, S_IRUGO, show_remote_temp8,
94e55df4 690 set_temp8, 2);
1da177e4
LT		 691static DEVICE_ATTR(temp2_crit_hyst, S_IWUSR | S_IRUGO, show_temp2_crit_hyst,
692 set_temp2_crit_hyst);
693
f496b2d4
GR		 694static DEVICE_ATTR(temp2_type, S_IWUSR | S_IRUGO, show_type, set_type);
695
2d45771e
JD		 696/* Individual alarm files */
697static SENSOR_DEVICE_ATTR(fan1_min_alarm, S_IRUGO, show_alarm, NULL, 0);
698static SENSOR_DEVICE_ATTR(temp2_crit_alarm, S_IRUGO, show_alarm, NULL, 1);
7817a39e 699static SENSOR_DEVICE_ATTR(temp2_fault, S_IRUGO, show_alarm, NULL, 2);
2d45771e
JD		 700static SENSOR_DEVICE_ATTR(temp2_min_alarm, S_IRUGO, show_alarm, NULL, 3);
701static SENSOR_DEVICE_ATTR(temp2_max_alarm, S_IRUGO, show_alarm, NULL, 4);
702static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL, 6);
703/* Raw alarm file for compatibility */
1da177e4
LT		 704static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
705
04738b2b
GR		 706static DEVICE_ATTR(update_interval, S_IRUGO | S_IWUSR, show_update_interval,
707 set_update_interval);
708
0e39e01c 709static struct attribute *lm63_attributes[] = {
d216f680 710 &sensor_dev_attr_pwm1.dev_attr.attr,
0e39e01c 711 &dev_attr_pwm1_enable.attr,
d216f680
JD		 712 &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr,
713 &sensor_dev_attr_pwm1_auto_point1_temp.dev_attr.attr,
714 &sensor_dev_attr_pwm1_auto_point1_temp_hyst.dev_attr.attr,
715 &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr,
716 &sensor_dev_attr_pwm1_auto_point2_temp.dev_attr.attr,
717 &sensor_dev_attr_pwm1_auto_point2_temp_hyst.dev_attr.attr,
718 &sensor_dev_attr_pwm1_auto_point3_pwm.dev_attr.attr,
719 &sensor_dev_attr_pwm1_auto_point3_temp.dev_attr.attr,
720 &sensor_dev_attr_pwm1_auto_point3_temp_hyst.dev_attr.attr,
721 &sensor_dev_attr_pwm1_auto_point4_pwm.dev_attr.attr,
722 &sensor_dev_attr_pwm1_auto_point4_temp.dev_attr.attr,
723 &sensor_dev_attr_pwm1_auto_point4_temp_hyst.dev_attr.attr,
724 &sensor_dev_attr_pwm1_auto_point5_pwm.dev_attr.attr,
725 &sensor_dev_attr_pwm1_auto_point5_temp.dev_attr.attr,
726 &sensor_dev_attr_pwm1_auto_point5_temp_hyst.dev_attr.attr,
727 &sensor_dev_attr_pwm1_auto_point6_pwm.dev_attr.attr,
728 &sensor_dev_attr_pwm1_auto_point6_temp.dev_attr.attr,
729 &sensor_dev_attr_pwm1_auto_point6_temp_hyst.dev_attr.attr,
730 &sensor_dev_attr_pwm1_auto_point7_pwm.dev_attr.attr,
731 &sensor_dev_attr_pwm1_auto_point7_temp.dev_attr.attr,
732 &sensor_dev_attr_pwm1_auto_point7_temp_hyst.dev_attr.attr,
733 &sensor_dev_attr_pwm1_auto_point8_pwm.dev_attr.attr,
734 &sensor_dev_attr_pwm1_auto_point8_temp.dev_attr.attr,
735 &sensor_dev_attr_pwm1_auto_point8_temp_hyst.dev_attr.attr,
736
0e39e01c
JD		 737 &sensor_dev_attr_temp1_input.dev_attr.attr,
738 &sensor_dev_attr_temp2_input.dev_attr.attr,
739 &sensor_dev_attr_temp2_min.dev_attr.attr,
740 &sensor_dev_attr_temp1_max.dev_attr.attr,
741 &sensor_dev_attr_temp2_max.dev_attr.attr,
786375f7 742 &sensor_dev_attr_temp2_offset.dev_attr.attr,
0e39e01c
JD		 743 &sensor_dev_attr_temp2_crit.dev_attr.attr,
744 &dev_attr_temp2_crit_hyst.attr,
745
746 &sensor_dev_attr_temp2_crit_alarm.dev_attr.attr,
7817a39e 747 &sensor_dev_attr_temp2_fault.dev_attr.attr,
0e39e01c
JD		 748 &sensor_dev_attr_temp2_min_alarm.dev_attr.attr,
749 &sensor_dev_attr_temp2_max_alarm.dev_attr.attr,
750 &sensor_dev_attr_temp1_max_alarm.dev_attr.attr,
751 &dev_attr_alarms.attr,
04738b2b 752 &dev_attr_update_interval.attr,
0e39e01c
JD		 753 NULL
754};
755
2fe28ab5
JD		 756static struct attribute *lm63_attributes_extra_lut[] = {
757 &sensor_dev_attr_pwm1_auto_point9_pwm.dev_attr.attr,
758 &sensor_dev_attr_pwm1_auto_point9_temp.dev_attr.attr,
759 &sensor_dev_attr_pwm1_auto_point9_temp_hyst.dev_attr.attr,
760 &sensor_dev_attr_pwm1_auto_point10_pwm.dev_attr.attr,
761 &sensor_dev_attr_pwm1_auto_point10_temp.dev_attr.attr,
762 &sensor_dev_attr_pwm1_auto_point10_temp_hyst.dev_attr.attr,
763 &sensor_dev_attr_pwm1_auto_point11_pwm.dev_attr.attr,
764 &sensor_dev_attr_pwm1_auto_point11_temp.dev_attr.attr,
765 &sensor_dev_attr_pwm1_auto_point11_temp_hyst.dev_attr.attr,
766 &sensor_dev_attr_pwm1_auto_point12_pwm.dev_attr.attr,
767 &sensor_dev_attr_pwm1_auto_point12_temp.dev_attr.attr,
768 &sensor_dev_attr_pwm1_auto_point12_temp_hyst.dev_attr.attr,
769 NULL
770};
771
772static const struct attribute_group lm63_group_extra_lut = {
773 .attrs = lm63_attributes_extra_lut,
774};
775
94e55df4
GR		 776/*
777 * On LM63, temp2_crit can be set only once, which should be job
778 * of the bootloader.
779 * On LM64, temp2_crit can always be set.
780 * On LM96163, temp2_crit can be set if bit 1 of the configuration
781 * register is true.
782 */
783static umode_t lm63_attribute_mode(struct kobject *kobj,
784 struct attribute *attr, int index)
785{
786 struct device *dev = container_of(kobj, struct device, kobj);
787 struct i2c_client *client = to_i2c_client(dev);
788 struct lm63_data *data = i2c_get_clientdata(client);
789
790 if (attr == &sensor_dev_attr_temp2_crit.dev_attr.attr
791 && (data->kind == lm64 ||
792 (data->kind == lm96163 && (data->config & 0x02))))
793 return attr->mode | S_IWUSR;
794
795 return attr->mode;
796}
797
0e39e01c 798static const struct attribute_group lm63_group = {
94e55df4 799 .is_visible = lm63_attribute_mode,
0e39e01c
JD		 800 .attrs = lm63_attributes,
801};
802
803static struct attribute *lm63_attributes_fan1[] = {
804 &sensor_dev_attr_fan1_input.dev_attr.attr,
805 &sensor_dev_attr_fan1_min.dev_attr.attr,
806
807 &sensor_dev_attr_fan1_min_alarm.dev_attr.attr,
808 NULL
809};
810
811static const struct attribute_group lm63_group_fan1 = {
812 .attrs = lm63_attributes_fan1,
813};
814
1da177e4
LT		 815/*
816 * Real code
817 */
818
d5957be2 819/* Return 0 if detection is successful, -ENODEV otherwise */
310ec792 820static int lm63_detect(struct i2c_client *new_client,
d5957be2 821 struct i2c_board_info *info)
1da177e4 822{
d5957be2 823 struct i2c_adapter *adapter = new_client->adapter;
52df6440
JD		 824 u8 man_id, chip_id, reg_config1, reg_config2;
825 u8 reg_alert_status, reg_alert_mask;
10f2ed31 826 int address = new_client->addr;
1da177e4
LT		 827
828 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
d5957be2 829 return -ENODEV;
1da177e4 830
52df6440
JD		 831 man_id = i2c_smbus_read_byte_data(new_client, LM63_REG_MAN_ID);
832 chip_id = i2c_smbus_read_byte_data(new_client, LM63_REG_CHIP_ID);
833
834 reg_config1 = i2c_smbus_read_byte_data(new_client,
835 LM63_REG_CONFIG1);
836 reg_config2 = i2c_smbus_read_byte_data(new_client,
837 LM63_REG_CONFIG2);
838 reg_alert_status = i2c_smbus_read_byte_data(new_client,
839 LM63_REG_ALERT_STATUS);
840 reg_alert_mask = i2c_smbus_read_byte_data(new_client,
841 LM63_REG_ALERT_MASK);
842
843 if (man_id != 0x01 /* National Semiconductor */
52df6440
JD		 844 || (reg_config1 & 0x18) != 0x00
845 || (reg_config2 & 0xF8) != 0x00
846 || (reg_alert_status & 0x20) != 0x00
847 || (reg_alert_mask & 0xA4) != 0xA4) {
848 dev_dbg(&adapter->dev,
849 "Unsupported chip (man_id=0x%02X, chip_id=0x%02X)\n",
850 man_id, chip_id);
851 return -ENODEV;
1da177e4
LT		 852 }
853
10f2ed31
MG		 854 if (chip_id == 0x41 && address == 0x4c)
855 strlcpy(info->type, "lm63", I2C_NAME_SIZE);
856 else if (chip_id == 0x51 && (address == 0x18 || address == 0x4e))
857 strlcpy(info->type, "lm64", I2C_NAME_SIZE);
210961c4
GR		 858 else if (chip_id == 0x49 && address == 0x4c)
859 strlcpy(info->type, "lm96163", I2C_NAME_SIZE);
10f2ed31
MG		 860 else
861 return -ENODEV;
d5957be2
JD		 862
863 return 0;
864}
865
866static int lm63_probe(struct i2c_client *new_client,
867 const struct i2c_device_id *id)
868{
869 struct lm63_data *data;
870 int err;
871
872 data = kzalloc(sizeof(struct lm63_data), GFP_KERNEL);
873 if (!data) {
874 err = -ENOMEM;
875 goto exit;
876 }
877
878 i2c_set_clientdata(new_client, data);
1da177e4 879 data->valid = 0;
9a61bf63 880 mutex_init(&data->update_lock);
1da177e4 881
2778fb13
DE		 882 /* Set the device type */
883 data->kind = id->driver_data;
884 if (data->kind == lm64)
885 data->temp2_offset = 16000;
886
887 /* Initialize chip */
1da177e4
LT		 888 lm63_init_client(new_client);
889
890 /* Register sysfs hooks */
662bda28
GR		 891 err = sysfs_create_group(&new_client->dev.kobj, &lm63_group);
892 if (err)
d5957be2 893 goto exit_free;
0e39e01c 894 if (data->config & 0x04) { /* tachometer enabled */
662bda28
GR		 895 err = sysfs_create_group(&new_client->dev.kobj,
896 &lm63_group_fan1);
897 if (err)
0e39e01c 898 goto exit_remove_files;
943b0830 899 }
f496b2d4
GR		 900 if (data->kind == lm96163) {
901 err = device_create_file(&new_client->dev,
902 &dev_attr_temp2_type);
903 if (err)
904 goto exit_remove_files;
2fe28ab5
JD		 905
906 err = sysfs_create_group(&new_client->dev.kobj,
907 &lm63_group_extra_lut);
908 if (err)
909 goto exit_remove_files;
f496b2d4 910 }
943b0830 911
1beeffe4
TJ		 912 data->hwmon_dev = hwmon_device_register(&new_client->dev);
913 if (IS_ERR(data->hwmon_dev)) {
914 err = PTR_ERR(data->hwmon_dev);
0e39e01c 915 goto exit_remove_files;
1da177e4 916 }
1da177e4
LT		 917
918 return 0;
919
0e39e01c
JD		 920exit_remove_files:
921 sysfs_remove_group(&new_client->dev.kobj, &lm63_group);
922 sysfs_remove_group(&new_client->dev.kobj, &lm63_group_fan1);
2fe28ab5
JD		 923 if (data->kind == lm96163) {
924 device_remove_file(&new_client->dev, &dev_attr_temp2_type);
925 sysfs_remove_group(&new_client->dev.kobj,
926 &lm63_group_extra_lut);
927 }
1da177e4
LT		 928exit_free:
929 kfree(data);
930exit:
931 return err;
932}
933
662bda28
GR		 934/*
935 * Ideally we shouldn't have to initialize anything, since the BIOS
936 * should have taken care of everything
937 */
1da177e4
LT		 938static void lm63_init_client(struct i2c_client *client)
939{
940 struct lm63_data *data = i2c_get_clientdata(client);
04738b2b 941 u8 convrate;
1da177e4
LT		 942
943 data->config = i2c_smbus_read_byte_data(client, LM63_REG_CONFIG1);
944 data->config_fan = i2c_smbus_read_byte_data(client,
945 LM63_REG_CONFIG_FAN);
946
947 /* Start converting if needed */
948 if (data->config & 0x40) { /* standby */
898eb71c 949 dev_dbg(&client->dev, "Switching to operational mode\n");
1da177e4
LT		 950 data->config &= 0xA7;
951 i2c_smbus_write_byte_data(client, LM63_REG_CONFIG1,
952 data->config);
953 }
409c0b5b
JD		 954 /* Tachometer is always enabled on LM64 */
955 if (data->kind == lm64)
956 data->config |= 0x04;
1da177e4
LT		 957
958 /* We may need pwm1_freq before ever updating the client data */
959 data->pwm1_freq = i2c_smbus_read_byte_data(client, LM63_REG_PWM_FREQ);
960 if (data->pwm1_freq == 0)
961 data->pwm1_freq = 1;
962
04738b2b
GR		 963 switch (data->kind) {
964 case lm63:
965 case lm64:
966 data->max_convrate_hz = LM63_MAX_CONVRATE_HZ;
2fe28ab5 967 data->lut_size = 8;
04738b2b
GR		 968 break;
969 case lm96163:
970 data->max_convrate_hz = LM96163_MAX_CONVRATE_HZ;
2fe28ab5 971 data->lut_size = 12;
f496b2d4
GR		 972 data->trutherm
973 = i2c_smbus_read_byte_data(client,
974 LM96163_REG_TRUTHERM) & 0x02;
04738b2b
GR		 975 break;
976 }
977 convrate = i2c_smbus_read_byte_data(client, LM63_REG_CONVRATE);
978 if (unlikely(convrate > LM63_MAX_CONVRATE))
979 convrate = LM63_MAX_CONVRATE;
980 data->update_interval = UPDATE_INTERVAL(data->max_convrate_hz,
981 convrate);
982
210961c4 983 /*
e872c91e
GR		 984 * For LM96163, check if high resolution PWM
985 * and unsigned temperature format is enabled.
210961c4
GR		 986 */
987 if (data->kind == lm96163) {
988 u8 config_enhanced
989 = i2c_smbus_read_byte_data(client,
990 LM96163_REG_CONFIG_ENHANCED);
d216f680
JD		 991 if (config_enhanced & 0x20)
992 data->lut_temp_highres = true;
210961c4
GR		 993 if ((config_enhanced & 0x10)
994 && !(data->config_fan & 0x08) && data->pwm1_freq == 8)
995 data->pwm_highres = true;
996 if (config_enhanced & 0x08)
e872c91e 997 data->remote_unsigned = true;
210961c4
GR		 998 }
999
1da177e4 1000 /* Show some debug info about the LM63 configuration */
409c0b5b
JD		 1001 if (data->kind == lm63)
1002 dev_dbg(&client->dev, "Alert/tach pin configured for %s\n",
1003 (data->config & 0x04) ? "tachometer input" :
1004 "alert output");
1da177e4
LT		 1005 dev_dbg(&client->dev, "PWM clock %s kHz, output frequency %u Hz\n",
1006 (data->config_fan & 0x08) ? "1.4" : "360",
1007 ((data->config_fan & 0x08) ? 700 : 180000) / data->pwm1_freq);
1008 dev_dbg(&client->dev, "PWM output active %s, %s mode\n",
1009 (data->config_fan & 0x10) ? "low" : "high",
1010 (data->config_fan & 0x20) ? "manual" : "auto");
1011}
1012
d5957be2 1013static int lm63_remove(struct i2c_client *client)
1da177e4 1014{
943b0830 1015 struct lm63_data *data = i2c_get_clientdata(client);
1da177e4 1016
1beeffe4 1017 hwmon_device_unregister(data->hwmon_dev);
0e39e01c
JD		 1018 sysfs_remove_group(&client->dev.kobj, &lm63_group);
1019 sysfs_remove_group(&client->dev.kobj, &lm63_group_fan1);
2fe28ab5
JD		 1020 if (data->kind == lm96163) {
1021 device_remove_file(&client->dev, &dev_attr_temp2_type);
1022 sysfs_remove_group(&client->dev.kobj, &lm63_group_extra_lut);
1023 }
943b0830 1024
943b0830 1025 kfree(data);
1da177e4
LT		 1026 return 0;
1027}
1028
1029static struct lm63_data *lm63_update_device(struct device *dev)
1030{
1031 struct i2c_client *client = to_i2c_client(dev);
1032 struct lm63_data *data = i2c_get_clientdata(client);
04738b2b 1033 unsigned long next_update;
d216f680 1034 int i;
1da177e4 1035
9a61bf63 1036 mutex_lock(&data->update_lock);
1da177e4 1037
04738b2b
GR		 1038 next_update = data->last_updated
1039 + msecs_to_jiffies(data->update_interval) + 1;
1040
1041 if (time_after(jiffies, next_update) || !data->valid) {
1da177e4
LT		 1042 if (data->config & 0x04) { /* tachometer enabled */
1043 /* order matters for fan1_input */
bc51ae11
JD		 1044 data->fan[0] = i2c_smbus_read_byte_data(client,
1045 LM63_REG_TACH_COUNT_LSB) & 0xFC;
1046 data->fan[0] |= i2c_smbus_read_byte_data(client,
1047 LM63_REG_TACH_COUNT_MSB) << 8;
1048 data->fan[1] = (i2c_smbus_read_byte_data(client,
1049 LM63_REG_TACH_LIMIT_LSB) & 0xFC)
1050 | (i2c_smbus_read_byte_data(client,
1051 LM63_REG_TACH_LIMIT_MSB) << 8);
1da177e4
LT		 1052 }
1053
1054 data->pwm1_freq = i2c_smbus_read_byte_data(client,
1055 LM63_REG_PWM_FREQ);
1056 if (data->pwm1_freq == 0)
1057 data->pwm1_freq = 1;
d216f680
JD		 1058 data->pwm1[0] = i2c_smbus_read_byte_data(client,
1059 LM63_REG_PWM_VALUE);
1da177e4 1060
bc51ae11
JD		 1061 data->temp8[0] = i2c_smbus_read_byte_data(client,
1062 LM63_REG_LOCAL_TEMP);
1063 data->temp8[1] = i2c_smbus_read_byte_data(client,
1064 LM63_REG_LOCAL_HIGH);
1da177e4
LT		 1065
1066 /* order matters for temp2_input */
bc51ae11
JD		 1067 data->temp11[0] = i2c_smbus_read_byte_data(client,
1068 LM63_REG_REMOTE_TEMP_MSB) << 8;
1069 data->temp11[0] |= i2c_smbus_read_byte_data(client,
1070 LM63_REG_REMOTE_TEMP_LSB);
1071 data->temp11[1] = (i2c_smbus_read_byte_data(client,
1da177e4
LT		 1072 LM63_REG_REMOTE_LOW_MSB) << 8)
1073 | i2c_smbus_read_byte_data(client,
1074 LM63_REG_REMOTE_LOW_LSB);
bc51ae11
JD		 1075 data->temp11[2] = (i2c_smbus_read_byte_data(client,
1076 LM63_REG_REMOTE_HIGH_MSB) << 8)
1077 | i2c_smbus_read_byte_data(client,
1078 LM63_REG_REMOTE_HIGH_LSB);
786375f7
GR		 1079 data->temp11[3] = (i2c_smbus_read_byte_data(client,
1080 LM63_REG_REMOTE_OFFSET_MSB) << 8)
1081 | i2c_smbus_read_byte_data(client,
1082 LM63_REG_REMOTE_OFFSET_LSB);
e872c91e
GR		 1083
1084 if (data->kind == lm96163)
1085 data->temp11u = (i2c_smbus_read_byte_data(client,
1086 LM96163_REG_REMOTE_TEMP_U_MSB) << 8)
1087 | i2c_smbus_read_byte_data(client,
1088 LM96163_REG_REMOTE_TEMP_U_LSB);
1089
bc51ae11
JD		 1090 data->temp8[2] = i2c_smbus_read_byte_data(client,
1091 LM63_REG_REMOTE_TCRIT);
1da177e4
LT		 1092 data->temp2_crit_hyst = i2c_smbus_read_byte_data(client,
1093 LM63_REG_REMOTE_TCRIT_HYST);
1094
1095 data->alarms = i2c_smbus_read_byte_data(client,
1096 LM63_REG_ALERT_STATUS) & 0x7F;
1097
1098 data->last_updated = jiffies;
1099 data->valid = 1;
1100 }
1101
d216f680
JD		 1102 if (time_after(jiffies, data->lut_last_updated + 5 * HZ) ||
1103 !data->lut_valid) {
2fe28ab5 1104 for (i = 0; i < data->lut_size; i++) {
d216f680
JD		 1105 data->pwm1[1 + i] = i2c_smbus_read_byte_data(client,
1106 LM63_REG_LUT_PWM(i));
1107 data->temp8[3 + i] = i2c_smbus_read_byte_data(client,
1108 LM63_REG_LUT_TEMP(i));
1109 }
1110 data->lut_temp_hyst = i2c_smbus_read_byte_data(client,
1111 LM63_REG_LUT_TEMP_HYST);
1112
1113 data->lut_last_updated = jiffies;
1114 data->lut_valid = 1;
1115 }
1116
9a61bf63 1117 mutex_unlock(&data->update_lock);
1da177e4
LT		 1118
1119 return data;
1120}
1121
1122static int __init sensors_lm63_init(void)
1123{
1124 return i2c_add_driver(&lm63_driver);
1125}
1126
1127static void __exit sensors_lm63_exit(void)
1128{
1129 i2c_del_driver(&lm63_driver);
1130}
1131
1132MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
1133MODULE_DESCRIPTION("LM63 driver");
1134MODULE_LICENSE("GPL");
1135
1136module_init(sensors_lm63_init);
1137module_exit(sensors_lm63_exit);
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