Commit | Line | Data |
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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 | |
54 | * Address is fully defined internally and cannot be changed. | |
55 | */ | |
56 | ||
10f2ed31 | 57 | static const unsigned short normal_i2c[] = { 0x18, 0x4c, 0x4e, I2C_CLIENT_END }; |
1da177e4 | 58 | |
1da177e4 LT |
59 | /* |
60 | * The LM63 registers | |
61 | */ | |
62 | ||
63 | #define LM63_REG_CONFIG1 0x03 | |
04738b2b | 64 | #define LM63_REG_CONVRATE 0x04 |
1da177e4 LT |
65 | #define LM63_REG_CONFIG2 0xBF |
66 | #define LM63_REG_CONFIG_FAN 0x4A | |
67 | ||
68 | #define LM63_REG_TACH_COUNT_MSB 0x47 | |
69 | #define LM63_REG_TACH_COUNT_LSB 0x46 | |
70 | #define LM63_REG_TACH_LIMIT_MSB 0x49 | |
71 | #define LM63_REG_TACH_LIMIT_LSB 0x48 | |
72 | ||
73 | #define LM63_REG_PWM_VALUE 0x4C | |
74 | #define LM63_REG_PWM_FREQ 0x4D | |
75 | ||
76 | #define LM63_REG_LOCAL_TEMP 0x00 | |
77 | #define LM63_REG_LOCAL_HIGH 0x05 | |
78 | ||
79 | #define LM63_REG_REMOTE_TEMP_MSB 0x01 | |
80 | #define LM63_REG_REMOTE_TEMP_LSB 0x10 | |
81 | #define LM63_REG_REMOTE_OFFSET_MSB 0x11 | |
82 | #define LM63_REG_REMOTE_OFFSET_LSB 0x12 | |
83 | #define LM63_REG_REMOTE_HIGH_MSB 0x07 | |
84 | #define LM63_REG_REMOTE_HIGH_LSB 0x13 | |
85 | #define LM63_REG_REMOTE_LOW_MSB 0x08 | |
86 | #define LM63_REG_REMOTE_LOW_LSB 0x14 | |
87 | #define LM63_REG_REMOTE_TCRIT 0x19 | |
88 | #define LM63_REG_REMOTE_TCRIT_HYST 0x21 | |
89 | ||
90 | #define LM63_REG_ALERT_STATUS 0x02 | |
91 | #define LM63_REG_ALERT_MASK 0x16 | |
92 | ||
93 | #define LM63_REG_MAN_ID 0xFE | |
94 | #define LM63_REG_CHIP_ID 0xFF | |
95 | ||
f496b2d4 | 96 | #define LM96163_REG_TRUTHERM 0x30 |
e872c91e GR |
97 | #define LM96163_REG_REMOTE_TEMP_U_MSB 0x31 |
98 | #define LM96163_REG_REMOTE_TEMP_U_LSB 0x32 | |
210961c4 GR |
99 | #define LM96163_REG_CONFIG_ENHANCED 0x45 |
100 | ||
04738b2b GR |
101 | #define LM63_MAX_CONVRATE 9 |
102 | ||
103 | #define LM63_MAX_CONVRATE_HZ 32 | |
104 | #define LM96163_MAX_CONVRATE_HZ 26 | |
105 | ||
1da177e4 LT |
106 | /* |
107 | * Conversions and various macros | |
108 | * For tachometer counts, the LM63 uses 16-bit values. | |
109 | * For local temperature and high limit, remote critical limit and hysteresis | |
44bbe87e | 110 | * value, it uses signed 8-bit values with LSB = 1 degree Celsius. |
1da177e4 | 111 | * For remote temperature, low and high limits, it uses signed 11-bit values |
44bbe87e | 112 | * with LSB = 0.125 degree Celsius, left-justified in 16-bit registers. |
2778fb13 DE |
113 | * For LM64 the actual remote diode temperature is 16 degree Celsius higher |
114 | * than the register reading. Remote temperature setpoints have to be | |
115 | * adapted accordingly. | |
1da177e4 LT |
116 | */ |
117 | ||
118 | #define FAN_FROM_REG(reg) ((reg) == 0xFFFC || (reg) == 0 ? 0 : \ | |
119 | 5400000 / (reg)) | |
120 | #define FAN_TO_REG(val) ((val) <= 82 ? 0xFFFC : \ | |
121 | (5400000 / (val)) & 0xFFFC) | |
122 | #define TEMP8_FROM_REG(reg) ((reg) * 1000) | |
123 | #define TEMP8_TO_REG(val) ((val) <= -128000 ? -128 : \ | |
124 | (val) >= 127000 ? 127 : \ | |
125 | (val) < 0 ? ((val) - 500) / 1000 : \ | |
126 | ((val) + 500) / 1000) | |
94e55df4 GR |
127 | #define TEMP8U_TO_REG(val) ((val) <= 0 ? 0 : \ |
128 | (val) >= 255000 ? 255 : \ | |
129 | ((val) + 500) / 1000) | |
1da177e4 LT |
130 | #define TEMP11_FROM_REG(reg) ((reg) / 32 * 125) |
131 | #define TEMP11_TO_REG(val) ((val) <= -128000 ? 0x8000 : \ | |
132 | (val) >= 127875 ? 0x7FE0 : \ | |
133 | (val) < 0 ? ((val) - 62) / 125 * 32 : \ | |
134 | ((val) + 62) / 125 * 32) | |
e872c91e GR |
135 | #define TEMP11U_TO_REG(val) ((val) <= 0 ? 0 : \ |
136 | (val) >= 255875 ? 0xFFE0 : \ | |
137 | ((val) + 62) / 125 * 32) | |
1da177e4 LT |
138 | #define HYST_TO_REG(val) ((val) <= 0 ? 0 : \ |
139 | (val) >= 127000 ? 127 : \ | |
140 | ((val) + 500) / 1000) | |
141 | ||
04738b2b GR |
142 | #define UPDATE_INTERVAL(max, rate) \ |
143 | ((1000 << (LM63_MAX_CONVRATE - (rate))) / (max)) | |
144 | ||
1da177e4 LT |
145 | /* |
146 | * Functions declaration | |
147 | */ | |
148 | ||
d5957be2 JD |
149 | static int lm63_probe(struct i2c_client *client, |
150 | const struct i2c_device_id *id); | |
151 | static int lm63_remove(struct i2c_client *client); | |
1da177e4 LT |
152 | |
153 | static struct lm63_data *lm63_update_device(struct device *dev); | |
154 | ||
310ec792 | 155 | static int lm63_detect(struct i2c_client *client, struct i2c_board_info *info); |
1da177e4 LT |
156 | static void lm63_init_client(struct i2c_client *client); |
157 | ||
210961c4 | 158 | enum chips { lm63, lm64, lm96163 }; |
10f2ed31 | 159 | |
1da177e4 LT |
160 | /* |
161 | * Driver data (common to all clients) | |
162 | */ | |
163 | ||
d5957be2 | 164 | static const struct i2c_device_id lm63_id[] = { |
10f2ed31 MG |
165 | { "lm63", lm63 }, |
166 | { "lm64", lm64 }, | |
210961c4 | 167 | { "lm96163", lm96163 }, |
d5957be2 JD |
168 | { } |
169 | }; | |
170 | MODULE_DEVICE_TABLE(i2c, lm63_id); | |
171 | ||
1da177e4 | 172 | static struct i2c_driver lm63_driver = { |
d5957be2 | 173 | .class = I2C_CLASS_HWMON, |
cdaf7934 | 174 | .driver = { |
cdaf7934 LR |
175 | .name = "lm63", |
176 | }, | |
d5957be2 JD |
177 | .probe = lm63_probe, |
178 | .remove = lm63_remove, | |
179 | .id_table = lm63_id, | |
180 | .detect = lm63_detect, | |
c3813d6a | 181 | .address_list = normal_i2c, |
1da177e4 LT |
182 | }; |
183 | ||
184 | /* | |
185 | * Client data (each client gets its own) | |
186 | */ | |
187 | ||
188 | struct lm63_data { | |
1beeffe4 | 189 | struct device *hwmon_dev; |
9a61bf63 | 190 | struct mutex update_lock; |
1da177e4 LT |
191 | char valid; /* zero until following fields are valid */ |
192 | unsigned long last_updated; /* in jiffies */ | |
04738b2b | 193 | enum chips kind; |
2778fb13 | 194 | int temp2_offset; |
1da177e4 | 195 | |
04738b2b GR |
196 | int update_interval; /* in milliseconds */ |
197 | int max_convrate_hz; | |
198 | ||
1da177e4 LT |
199 | /* registers values */ |
200 | u8 config, config_fan; | |
bc51ae11 JD |
201 | u16 fan[2]; /* 0: input |
202 | 1: low limit */ | |
1da177e4 LT |
203 | u8 pwm1_freq; |
204 | u8 pwm1_value; | |
bc51ae11 JD |
205 | s8 temp8[3]; /* 0: local input |
206 | 1: local high limit | |
207 | 2: remote critical limit */ | |
786375f7 | 208 | s16 temp11[4]; /* 0: remote input |
bc51ae11 | 209 | 1: remote low limit |
786375f7 GR |
210 | 2: remote high limit |
211 | 3: remote offset */ | |
e872c91e | 212 | u16 temp11u; /* remote input (unsigned) */ |
1da177e4 LT |
213 | u8 temp2_crit_hyst; |
214 | u8 alarms; | |
210961c4 | 215 | bool pwm_highres; |
e872c91e | 216 | bool remote_unsigned; /* true if unsigned remote upper limits */ |
f496b2d4 | 217 | bool trutherm; |
1da177e4 LT |
218 | }; |
219 | ||
e872c91e GR |
220 | static inline int temp8_from_reg(struct lm63_data *data, int nr) |
221 | { | |
222 | if (data->remote_unsigned) | |
223 | return TEMP8_FROM_REG((u8)data->temp8[nr]); | |
224 | return TEMP8_FROM_REG(data->temp8[nr]); | |
225 | } | |
226 | ||
1da177e4 LT |
227 | /* |
228 | * Sysfs callback functions and files | |
229 | */ | |
230 | ||
bc51ae11 JD |
231 | static ssize_t show_fan(struct device *dev, struct device_attribute *devattr, |
232 | char *buf) | |
233 | { | |
234 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
235 | struct lm63_data *data = lm63_update_device(dev); | |
236 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[attr->index])); | |
1da177e4 | 237 | } |
1da177e4 | 238 | |
bc51ae11 JD |
239 | static ssize_t set_fan(struct device *dev, struct device_attribute *dummy, |
240 | const char *buf, size_t count) | |
1da177e4 LT |
241 | { |
242 | struct i2c_client *client = to_i2c_client(dev); | |
243 | struct lm63_data *data = i2c_get_clientdata(client); | |
662bda28 GR |
244 | unsigned long val; |
245 | int err; | |
246 | ||
247 | err = kstrtoul(buf, 10, &val); | |
248 | if (err) | |
249 | return err; | |
1da177e4 | 250 | |
9a61bf63 | 251 | mutex_lock(&data->update_lock); |
bc51ae11 | 252 | data->fan[1] = FAN_TO_REG(val); |
1da177e4 | 253 | i2c_smbus_write_byte_data(client, LM63_REG_TACH_LIMIT_LSB, |
bc51ae11 | 254 | data->fan[1] & 0xFF); |
1da177e4 | 255 | i2c_smbus_write_byte_data(client, LM63_REG_TACH_LIMIT_MSB, |
bc51ae11 | 256 | data->fan[1] >> 8); |
9a61bf63 | 257 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
258 | return count; |
259 | } | |
260 | ||
bc51ae11 JD |
261 | static ssize_t show_pwm1(struct device *dev, struct device_attribute *dummy, |
262 | char *buf) | |
1da177e4 LT |
263 | { |
264 | struct lm63_data *data = lm63_update_device(dev); | |
210961c4 GR |
265 | int pwm; |
266 | ||
267 | if (data->pwm_highres) | |
268 | pwm = data->pwm1_value; | |
269 | else | |
270 | pwm = data->pwm1_value >= 2 * data->pwm1_freq ? | |
1da177e4 | 271 | 255 : (data->pwm1_value * 255 + data->pwm1_freq) / |
210961c4 GR |
272 | (2 * data->pwm1_freq); |
273 | ||
274 | return sprintf(buf, "%d\n", pwm); | |
1da177e4 LT |
275 | } |
276 | ||
bc51ae11 JD |
277 | static ssize_t set_pwm1(struct device *dev, struct device_attribute *dummy, |
278 | const char *buf, size_t count) | |
1da177e4 LT |
279 | { |
280 | struct i2c_client *client = to_i2c_client(dev); | |
281 | struct lm63_data *data = i2c_get_clientdata(client); | |
282 | unsigned long val; | |
662bda28 GR |
283 | int err; |
284 | ||
1da177e4 LT |
285 | if (!(data->config_fan & 0x20)) /* register is read-only */ |
286 | return -EPERM; | |
287 | ||
662bda28 GR |
288 | err = kstrtoul(buf, 10, &val); |
289 | if (err) | |
290 | return err; | |
291 | ||
210961c4 | 292 | val = SENSORS_LIMIT(val, 0, 255); |
9a61bf63 | 293 | mutex_lock(&data->update_lock); |
210961c4 | 294 | data->pwm1_value = data->pwm_highres ? val : |
1da177e4 LT |
295 | (val * data->pwm1_freq * 2 + 127) / 255; |
296 | i2c_smbus_write_byte_data(client, LM63_REG_PWM_VALUE, data->pwm1_value); | |
9a61bf63 | 297 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
298 | return count; |
299 | } | |
300 | ||
662bda28 GR |
301 | static ssize_t show_pwm1_enable(struct device *dev, |
302 | struct device_attribute *dummy, char *buf) | |
1da177e4 LT |
303 | { |
304 | struct lm63_data *data = lm63_update_device(dev); | |
305 | return sprintf(buf, "%d\n", data->config_fan & 0x20 ? 1 : 2); | |
306 | } | |
307 | ||
2778fb13 DE |
308 | /* |
309 | * There are 8bit registers for both local(temp1) and remote(temp2) sensor. | |
310 | * For remote sensor registers temp2_offset has to be considered, | |
311 | * for local sensor it must not. | |
312 | * So we need separate 8bit accessors for local and remote sensor. | |
313 | */ | |
314 | static ssize_t show_local_temp8(struct device *dev, | |
315 | struct device_attribute *devattr, | |
316 | char *buf) | |
bc51ae11 JD |
317 | { |
318 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
319 | struct lm63_data *data = lm63_update_device(dev); | |
320 | return sprintf(buf, "%d\n", TEMP8_FROM_REG(data->temp8[attr->index])); | |
1da177e4 | 321 | } |
bc51ae11 | 322 | |
2778fb13 DE |
323 | static ssize_t show_remote_temp8(struct device *dev, |
324 | struct device_attribute *devattr, | |
325 | char *buf) | |
326 | { | |
327 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
328 | struct lm63_data *data = lm63_update_device(dev); | |
e872c91e | 329 | return sprintf(buf, "%d\n", temp8_from_reg(data, attr->index) |
2778fb13 DE |
330 | + data->temp2_offset); |
331 | } | |
332 | ||
94e55df4 GR |
333 | static ssize_t set_temp8(struct device *dev, struct device_attribute *devattr, |
334 | const char *buf, size_t count) | |
bc51ae11 | 335 | { |
94e55df4 | 336 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
bc51ae11 JD |
337 | struct i2c_client *client = to_i2c_client(dev); |
338 | struct lm63_data *data = i2c_get_clientdata(client); | |
94e55df4 GR |
339 | int nr = attr->index; |
340 | int reg = nr == 2 ? LM63_REG_REMOTE_TCRIT : LM63_REG_LOCAL_HIGH; | |
662bda28 GR |
341 | long val; |
342 | int err; | |
94e55df4 | 343 | int temp; |
662bda28 GR |
344 | |
345 | err = kstrtol(buf, 10, &val); | |
346 | if (err) | |
347 | return err; | |
bc51ae11 | 348 | |
9a61bf63 | 349 | mutex_lock(&data->update_lock); |
94e55df4 GR |
350 | if (nr == 2) { |
351 | if (data->remote_unsigned) | |
352 | temp = TEMP8U_TO_REG(val - data->temp2_offset); | |
353 | else | |
354 | temp = TEMP8_TO_REG(val - data->temp2_offset); | |
355 | } else { | |
356 | temp = TEMP8_TO_REG(val); | |
357 | } | |
358 | data->temp8[nr] = temp; | |
359 | i2c_smbus_write_byte_data(client, reg, temp); | |
9a61bf63 | 360 | mutex_unlock(&data->update_lock); |
bc51ae11 | 361 | return count; |
1da177e4 | 362 | } |
bc51ae11 JD |
363 | |
364 | static ssize_t show_temp11(struct device *dev, struct device_attribute *devattr, | |
365 | char *buf) | |
366 | { | |
367 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
368 | struct lm63_data *data = lm63_update_device(dev); | |
e872c91e GR |
369 | int nr = attr->index; |
370 | int temp; | |
371 | ||
372 | if (!nr) { | |
373 | /* | |
374 | * Use unsigned temperature unless its value is zero. | |
375 | * If it is zero, use signed temperature. | |
376 | */ | |
377 | if (data->temp11u) | |
378 | temp = TEMP11_FROM_REG(data->temp11u); | |
379 | else | |
380 | temp = TEMP11_FROM_REG(data->temp11[nr]); | |
381 | } else { | |
382 | if (data->remote_unsigned && nr == 2) | |
383 | temp = TEMP11_FROM_REG((u16)data->temp11[nr]); | |
384 | else | |
385 | temp = TEMP11_FROM_REG(data->temp11[nr]); | |
386 | } | |
387 | return sprintf(buf, "%d\n", temp + data->temp2_offset); | |
1da177e4 | 388 | } |
bc51ae11 JD |
389 | |
390 | static ssize_t set_temp11(struct device *dev, struct device_attribute *devattr, | |
391 | const char *buf, size_t count) | |
392 | { | |
786375f7 | 393 | static const u8 reg[6] = { |
bc51ae11 JD |
394 | LM63_REG_REMOTE_LOW_MSB, |
395 | LM63_REG_REMOTE_LOW_LSB, | |
396 | LM63_REG_REMOTE_HIGH_MSB, | |
397 | LM63_REG_REMOTE_HIGH_LSB, | |
786375f7 GR |
398 | LM63_REG_REMOTE_OFFSET_MSB, |
399 | LM63_REG_REMOTE_OFFSET_LSB, | |
bc51ae11 JD |
400 | }; |
401 | ||
402 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
403 | struct i2c_client *client = to_i2c_client(dev); | |
404 | struct lm63_data *data = i2c_get_clientdata(client); | |
662bda28 GR |
405 | long val; |
406 | int err; | |
bc51ae11 JD |
407 | int nr = attr->index; |
408 | ||
662bda28 GR |
409 | err = kstrtol(buf, 10, &val); |
410 | if (err) | |
411 | return err; | |
412 | ||
9a61bf63 | 413 | mutex_lock(&data->update_lock); |
e872c91e GR |
414 | if (data->remote_unsigned && nr == 2) |
415 | data->temp11[nr] = TEMP11U_TO_REG(val - data->temp2_offset); | |
416 | else | |
417 | data->temp11[nr] = TEMP11_TO_REG(val - data->temp2_offset); | |
418 | ||
bc51ae11 JD |
419 | i2c_smbus_write_byte_data(client, reg[(nr - 1) * 2], |
420 | data->temp11[nr] >> 8); | |
421 | i2c_smbus_write_byte_data(client, reg[(nr - 1) * 2 + 1], | |
422 | data->temp11[nr] & 0xff); | |
9a61bf63 | 423 | mutex_unlock(&data->update_lock); |
bc51ae11 | 424 | return count; |
1da177e4 | 425 | } |
1da177e4 | 426 | |
662bda28 GR |
427 | /* |
428 | * Hysteresis register holds a relative value, while we want to present | |
429 | * an absolute to user-space | |
430 | */ | |
431 | static ssize_t show_temp2_crit_hyst(struct device *dev, | |
432 | struct device_attribute *dummy, char *buf) | |
1da177e4 LT |
433 | { |
434 | struct lm63_data *data = lm63_update_device(dev); | |
e872c91e | 435 | return sprintf(buf, "%d\n", temp8_from_reg(data, 2) |
2778fb13 | 436 | + data->temp2_offset |
1da177e4 LT |
437 | - TEMP8_FROM_REG(data->temp2_crit_hyst)); |
438 | } | |
439 | ||
662bda28 GR |
440 | /* |
441 | * And now the other way around, user-space provides an absolute | |
442 | * hysteresis value and we have to store a relative one | |
443 | */ | |
444 | static ssize_t set_temp2_crit_hyst(struct device *dev, | |
445 | struct device_attribute *dummy, | |
bc51ae11 | 446 | const char *buf, size_t count) |
1da177e4 LT |
447 | { |
448 | struct i2c_client *client = to_i2c_client(dev); | |
449 | struct lm63_data *data = i2c_get_clientdata(client); | |
662bda28 GR |
450 | long val; |
451 | int err; | |
1da177e4 LT |
452 | long hyst; |
453 | ||
662bda28 GR |
454 | err = kstrtol(buf, 10, &val); |
455 | if (err) | |
456 | return err; | |
457 | ||
9a61bf63 | 458 | mutex_lock(&data->update_lock); |
e872c91e | 459 | hyst = temp8_from_reg(data, 2) + data->temp2_offset - val; |
1da177e4 LT |
460 | i2c_smbus_write_byte_data(client, LM63_REG_REMOTE_TCRIT_HYST, |
461 | HYST_TO_REG(hyst)); | |
9a61bf63 | 462 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
463 | return count; |
464 | } | |
465 | ||
04738b2b GR |
466 | /* |
467 | * Set conversion rate. | |
468 | * client->update_lock must be held when calling this function. | |
469 | */ | |
470 | static void lm63_set_convrate(struct i2c_client *client, struct lm63_data *data, | |
471 | unsigned int interval) | |
472 | { | |
473 | int i; | |
474 | unsigned int update_interval; | |
475 | ||
476 | /* Shift calculations to avoid rounding errors */ | |
477 | interval <<= 6; | |
478 | ||
479 | /* find the nearest update rate */ | |
480 | update_interval = (1 << (LM63_MAX_CONVRATE + 6)) * 1000 | |
481 | / data->max_convrate_hz; | |
482 | for (i = 0; i < LM63_MAX_CONVRATE; i++, update_interval >>= 1) | |
483 | if (interval >= update_interval * 3 / 4) | |
484 | break; | |
485 | ||
486 | i2c_smbus_write_byte_data(client, LM63_REG_CONVRATE, i); | |
487 | data->update_interval = UPDATE_INTERVAL(data->max_convrate_hz, i); | |
488 | } | |
489 | ||
490 | static ssize_t show_update_interval(struct device *dev, | |
491 | struct device_attribute *attr, char *buf) | |
492 | { | |
493 | struct lm63_data *data = dev_get_drvdata(dev); | |
494 | ||
495 | return sprintf(buf, "%u\n", data->update_interval); | |
496 | } | |
497 | ||
498 | static ssize_t set_update_interval(struct device *dev, | |
499 | struct device_attribute *attr, | |
500 | const char *buf, size_t count) | |
501 | { | |
502 | struct i2c_client *client = to_i2c_client(dev); | |
503 | struct lm63_data *data = i2c_get_clientdata(client); | |
504 | unsigned long val; | |
505 | int err; | |
506 | ||
507 | err = kstrtoul(buf, 10, &val); | |
508 | if (err) | |
509 | return err; | |
510 | ||
511 | mutex_lock(&data->update_lock); | |
512 | lm63_set_convrate(client, data, SENSORS_LIMIT(val, 0, 100000)); | |
513 | mutex_unlock(&data->update_lock); | |
514 | ||
515 | return count; | |
516 | } | |
517 | ||
f496b2d4 GR |
518 | static ssize_t show_type(struct device *dev, struct device_attribute *attr, |
519 | char *buf) | |
520 | { | |
521 | struct i2c_client *client = to_i2c_client(dev); | |
522 | struct lm63_data *data = i2c_get_clientdata(client); | |
523 | ||
524 | return sprintf(buf, data->trutherm ? "1\n" : "2\n"); | |
525 | } | |
526 | ||
527 | static ssize_t set_type(struct device *dev, struct device_attribute *attr, | |
528 | const char *buf, size_t count) | |
529 | { | |
530 | struct i2c_client *client = to_i2c_client(dev); | |
531 | struct lm63_data *data = i2c_get_clientdata(client); | |
532 | unsigned long val; | |
533 | int ret; | |
534 | u8 reg; | |
535 | ||
536 | ret = kstrtoul(buf, 10, &val); | |
537 | if (ret < 0) | |
538 | return ret; | |
539 | if (val != 1 && val != 2) | |
540 | return -EINVAL; | |
541 | ||
542 | mutex_lock(&data->update_lock); | |
543 | data->trutherm = val == 1; | |
544 | reg = i2c_smbus_read_byte_data(client, LM96163_REG_TRUTHERM) & ~0x02; | |
545 | i2c_smbus_write_byte_data(client, LM96163_REG_TRUTHERM, | |
546 | reg | (data->trutherm ? 0x02 : 0x00)); | |
547 | data->valid = 0; | |
548 | mutex_unlock(&data->update_lock); | |
549 | ||
550 | return count; | |
551 | } | |
552 | ||
bc51ae11 JD |
553 | static ssize_t show_alarms(struct device *dev, struct device_attribute *dummy, |
554 | char *buf) | |
1da177e4 LT |
555 | { |
556 | struct lm63_data *data = lm63_update_device(dev); | |
557 | return sprintf(buf, "%u\n", data->alarms); | |
558 | } | |
559 | ||
2d45771e JD |
560 | static ssize_t show_alarm(struct device *dev, struct device_attribute *devattr, |
561 | char *buf) | |
562 | { | |
563 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
564 | struct lm63_data *data = lm63_update_device(dev); | |
565 | int bitnr = attr->index; | |
566 | ||
567 | return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1); | |
568 | } | |
569 | ||
bc51ae11 JD |
570 | static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0); |
571 | static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan, | |
572 | set_fan, 1); | |
1da177e4 LT |
573 | |
574 | static DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm1, set_pwm1); | |
575 | static DEVICE_ATTR(pwm1_enable, S_IRUGO, show_pwm1_enable, NULL); | |
576 | ||
2778fb13 DE |
577 | static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_local_temp8, NULL, 0); |
578 | static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_local_temp8, | |
94e55df4 | 579 | set_temp8, 1); |
1da177e4 | 580 | |
bc51ae11 JD |
581 | static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp11, NULL, 0); |
582 | static SENSOR_DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_temp11, | |
583 | set_temp11, 1); | |
584 | static SENSOR_DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp11, | |
585 | set_temp11, 2); | |
786375f7 GR |
586 | static SENSOR_DEVICE_ATTR(temp2_offset, S_IWUSR | S_IRUGO, show_temp11, |
587 | set_temp11, 3); | |
2778fb13 | 588 | static SENSOR_DEVICE_ATTR(temp2_crit, S_IRUGO, show_remote_temp8, |
94e55df4 | 589 | set_temp8, 2); |
1da177e4 LT |
590 | static DEVICE_ATTR(temp2_crit_hyst, S_IWUSR | S_IRUGO, show_temp2_crit_hyst, |
591 | set_temp2_crit_hyst); | |
592 | ||
f496b2d4 GR |
593 | static DEVICE_ATTR(temp2_type, S_IWUSR | S_IRUGO, show_type, set_type); |
594 | ||
2d45771e JD |
595 | /* Individual alarm files */ |
596 | static SENSOR_DEVICE_ATTR(fan1_min_alarm, S_IRUGO, show_alarm, NULL, 0); | |
597 | static SENSOR_DEVICE_ATTR(temp2_crit_alarm, S_IRUGO, show_alarm, NULL, 1); | |
7817a39e | 598 | static SENSOR_DEVICE_ATTR(temp2_fault, S_IRUGO, show_alarm, NULL, 2); |
2d45771e JD |
599 | static SENSOR_DEVICE_ATTR(temp2_min_alarm, S_IRUGO, show_alarm, NULL, 3); |
600 | static SENSOR_DEVICE_ATTR(temp2_max_alarm, S_IRUGO, show_alarm, NULL, 4); | |
601 | static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL, 6); | |
602 | /* Raw alarm file for compatibility */ | |
1da177e4 LT |
603 | static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL); |
604 | ||
04738b2b GR |
605 | static DEVICE_ATTR(update_interval, S_IRUGO | S_IWUSR, show_update_interval, |
606 | set_update_interval); | |
607 | ||
0e39e01c JD |
608 | static struct attribute *lm63_attributes[] = { |
609 | &dev_attr_pwm1.attr, | |
610 | &dev_attr_pwm1_enable.attr, | |
611 | &sensor_dev_attr_temp1_input.dev_attr.attr, | |
612 | &sensor_dev_attr_temp2_input.dev_attr.attr, | |
613 | &sensor_dev_attr_temp2_min.dev_attr.attr, | |
614 | &sensor_dev_attr_temp1_max.dev_attr.attr, | |
615 | &sensor_dev_attr_temp2_max.dev_attr.attr, | |
786375f7 | 616 | &sensor_dev_attr_temp2_offset.dev_attr.attr, |
0e39e01c JD |
617 | &sensor_dev_attr_temp2_crit.dev_attr.attr, |
618 | &dev_attr_temp2_crit_hyst.attr, | |
619 | ||
620 | &sensor_dev_attr_temp2_crit_alarm.dev_attr.attr, | |
7817a39e | 621 | &sensor_dev_attr_temp2_fault.dev_attr.attr, |
0e39e01c JD |
622 | &sensor_dev_attr_temp2_min_alarm.dev_attr.attr, |
623 | &sensor_dev_attr_temp2_max_alarm.dev_attr.attr, | |
624 | &sensor_dev_attr_temp1_max_alarm.dev_attr.attr, | |
625 | &dev_attr_alarms.attr, | |
04738b2b | 626 | &dev_attr_update_interval.attr, |
0e39e01c JD |
627 | NULL |
628 | }; | |
629 | ||
94e55df4 GR |
630 | /* |
631 | * On LM63, temp2_crit can be set only once, which should be job | |
632 | * of the bootloader. | |
633 | * On LM64, temp2_crit can always be set. | |
634 | * On LM96163, temp2_crit can be set if bit 1 of the configuration | |
635 | * register is true. | |
636 | */ | |
637 | static umode_t lm63_attribute_mode(struct kobject *kobj, | |
638 | struct attribute *attr, int index) | |
639 | { | |
640 | struct device *dev = container_of(kobj, struct device, kobj); | |
641 | struct i2c_client *client = to_i2c_client(dev); | |
642 | struct lm63_data *data = i2c_get_clientdata(client); | |
643 | ||
644 | if (attr == &sensor_dev_attr_temp2_crit.dev_attr.attr | |
645 | && (data->kind == lm64 || | |
646 | (data->kind == lm96163 && (data->config & 0x02)))) | |
647 | return attr->mode | S_IWUSR; | |
648 | ||
649 | return attr->mode; | |
650 | } | |
651 | ||
0e39e01c | 652 | static const struct attribute_group lm63_group = { |
94e55df4 | 653 | .is_visible = lm63_attribute_mode, |
0e39e01c JD |
654 | .attrs = lm63_attributes, |
655 | }; | |
656 | ||
657 | static struct attribute *lm63_attributes_fan1[] = { | |
658 | &sensor_dev_attr_fan1_input.dev_attr.attr, | |
659 | &sensor_dev_attr_fan1_min.dev_attr.attr, | |
660 | ||
661 | &sensor_dev_attr_fan1_min_alarm.dev_attr.attr, | |
662 | NULL | |
663 | }; | |
664 | ||
665 | static const struct attribute_group lm63_group_fan1 = { | |
666 | .attrs = lm63_attributes_fan1, | |
667 | }; | |
668 | ||
1da177e4 LT |
669 | /* |
670 | * Real code | |
671 | */ | |
672 | ||
d5957be2 | 673 | /* Return 0 if detection is successful, -ENODEV otherwise */ |
310ec792 | 674 | static int lm63_detect(struct i2c_client *new_client, |
d5957be2 | 675 | struct i2c_board_info *info) |
1da177e4 | 676 | { |
d5957be2 | 677 | struct i2c_adapter *adapter = new_client->adapter; |
52df6440 JD |
678 | u8 man_id, chip_id, reg_config1, reg_config2; |
679 | u8 reg_alert_status, reg_alert_mask; | |
10f2ed31 | 680 | int address = new_client->addr; |
1da177e4 LT |
681 | |
682 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) | |
d5957be2 | 683 | return -ENODEV; |
1da177e4 | 684 | |
52df6440 JD |
685 | man_id = i2c_smbus_read_byte_data(new_client, LM63_REG_MAN_ID); |
686 | chip_id = i2c_smbus_read_byte_data(new_client, LM63_REG_CHIP_ID); | |
687 | ||
688 | reg_config1 = i2c_smbus_read_byte_data(new_client, | |
689 | LM63_REG_CONFIG1); | |
690 | reg_config2 = i2c_smbus_read_byte_data(new_client, | |
691 | LM63_REG_CONFIG2); | |
692 | reg_alert_status = i2c_smbus_read_byte_data(new_client, | |
693 | LM63_REG_ALERT_STATUS); | |
694 | reg_alert_mask = i2c_smbus_read_byte_data(new_client, | |
695 | LM63_REG_ALERT_MASK); | |
696 | ||
697 | if (man_id != 0x01 /* National Semiconductor */ | |
52df6440 JD |
698 | || (reg_config1 & 0x18) != 0x00 |
699 | || (reg_config2 & 0xF8) != 0x00 | |
700 | || (reg_alert_status & 0x20) != 0x00 | |
701 | || (reg_alert_mask & 0xA4) != 0xA4) { | |
702 | dev_dbg(&adapter->dev, | |
703 | "Unsupported chip (man_id=0x%02X, chip_id=0x%02X)\n", | |
704 | man_id, chip_id); | |
705 | return -ENODEV; | |
1da177e4 LT |
706 | } |
707 | ||
10f2ed31 MG |
708 | if (chip_id == 0x41 && address == 0x4c) |
709 | strlcpy(info->type, "lm63", I2C_NAME_SIZE); | |
710 | else if (chip_id == 0x51 && (address == 0x18 || address == 0x4e)) | |
711 | strlcpy(info->type, "lm64", I2C_NAME_SIZE); | |
210961c4 GR |
712 | else if (chip_id == 0x49 && address == 0x4c) |
713 | strlcpy(info->type, "lm96163", I2C_NAME_SIZE); | |
10f2ed31 MG |
714 | else |
715 | return -ENODEV; | |
d5957be2 JD |
716 | |
717 | return 0; | |
718 | } | |
719 | ||
720 | static int lm63_probe(struct i2c_client *new_client, | |
721 | const struct i2c_device_id *id) | |
722 | { | |
723 | struct lm63_data *data; | |
724 | int err; | |
725 | ||
726 | data = kzalloc(sizeof(struct lm63_data), GFP_KERNEL); | |
727 | if (!data) { | |
728 | err = -ENOMEM; | |
729 | goto exit; | |
730 | } | |
731 | ||
732 | i2c_set_clientdata(new_client, data); | |
1da177e4 | 733 | data->valid = 0; |
9a61bf63 | 734 | mutex_init(&data->update_lock); |
1da177e4 | 735 | |
2778fb13 DE |
736 | /* Set the device type */ |
737 | data->kind = id->driver_data; | |
738 | if (data->kind == lm64) | |
739 | data->temp2_offset = 16000; | |
740 | ||
741 | /* Initialize chip */ | |
1da177e4 LT |
742 | lm63_init_client(new_client); |
743 | ||
744 | /* Register sysfs hooks */ | |
662bda28 GR |
745 | err = sysfs_create_group(&new_client->dev.kobj, &lm63_group); |
746 | if (err) | |
d5957be2 | 747 | goto exit_free; |
0e39e01c | 748 | if (data->config & 0x04) { /* tachometer enabled */ |
662bda28 GR |
749 | err = sysfs_create_group(&new_client->dev.kobj, |
750 | &lm63_group_fan1); | |
751 | if (err) | |
0e39e01c | 752 | goto exit_remove_files; |
943b0830 | 753 | } |
f496b2d4 GR |
754 | if (data->kind == lm96163) { |
755 | err = device_create_file(&new_client->dev, | |
756 | &dev_attr_temp2_type); | |
757 | if (err) | |
758 | goto exit_remove_files; | |
759 | } | |
943b0830 | 760 | |
1beeffe4 TJ |
761 | data->hwmon_dev = hwmon_device_register(&new_client->dev); |
762 | if (IS_ERR(data->hwmon_dev)) { | |
763 | err = PTR_ERR(data->hwmon_dev); | |
0e39e01c | 764 | goto exit_remove_files; |
1da177e4 | 765 | } |
1da177e4 LT |
766 | |
767 | return 0; | |
768 | ||
0e39e01c | 769 | exit_remove_files: |
f496b2d4 | 770 | device_remove_file(&new_client->dev, &dev_attr_temp2_type); |
0e39e01c JD |
771 | sysfs_remove_group(&new_client->dev.kobj, &lm63_group); |
772 | sysfs_remove_group(&new_client->dev.kobj, &lm63_group_fan1); | |
1da177e4 LT |
773 | exit_free: |
774 | kfree(data); | |
775 | exit: | |
776 | return err; | |
777 | } | |
778 | ||
662bda28 GR |
779 | /* |
780 | * Ideally we shouldn't have to initialize anything, since the BIOS | |
781 | * should have taken care of everything | |
782 | */ | |
1da177e4 LT |
783 | static void lm63_init_client(struct i2c_client *client) |
784 | { | |
785 | struct lm63_data *data = i2c_get_clientdata(client); | |
04738b2b | 786 | u8 convrate; |
1da177e4 LT |
787 | |
788 | data->config = i2c_smbus_read_byte_data(client, LM63_REG_CONFIG1); | |
789 | data->config_fan = i2c_smbus_read_byte_data(client, | |
790 | LM63_REG_CONFIG_FAN); | |
791 | ||
792 | /* Start converting if needed */ | |
793 | if (data->config & 0x40) { /* standby */ | |
898eb71c | 794 | dev_dbg(&client->dev, "Switching to operational mode\n"); |
1da177e4 LT |
795 | data->config &= 0xA7; |
796 | i2c_smbus_write_byte_data(client, LM63_REG_CONFIG1, | |
797 | data->config); | |
798 | } | |
799 | ||
800 | /* We may need pwm1_freq before ever updating the client data */ | |
801 | data->pwm1_freq = i2c_smbus_read_byte_data(client, LM63_REG_PWM_FREQ); | |
802 | if (data->pwm1_freq == 0) | |
803 | data->pwm1_freq = 1; | |
804 | ||
04738b2b GR |
805 | switch (data->kind) { |
806 | case lm63: | |
807 | case lm64: | |
808 | data->max_convrate_hz = LM63_MAX_CONVRATE_HZ; | |
809 | break; | |
810 | case lm96163: | |
811 | data->max_convrate_hz = LM96163_MAX_CONVRATE_HZ; | |
f496b2d4 GR |
812 | data->trutherm |
813 | = i2c_smbus_read_byte_data(client, | |
814 | LM96163_REG_TRUTHERM) & 0x02; | |
04738b2b GR |
815 | break; |
816 | } | |
817 | convrate = i2c_smbus_read_byte_data(client, LM63_REG_CONVRATE); | |
818 | if (unlikely(convrate > LM63_MAX_CONVRATE)) | |
819 | convrate = LM63_MAX_CONVRATE; | |
820 | data->update_interval = UPDATE_INTERVAL(data->max_convrate_hz, | |
821 | convrate); | |
822 | ||
210961c4 | 823 | /* |
e872c91e GR |
824 | * For LM96163, check if high resolution PWM |
825 | * and unsigned temperature format is enabled. | |
210961c4 GR |
826 | */ |
827 | if (data->kind == lm96163) { | |
828 | u8 config_enhanced | |
829 | = i2c_smbus_read_byte_data(client, | |
830 | LM96163_REG_CONFIG_ENHANCED); | |
831 | if ((config_enhanced & 0x10) | |
832 | && !(data->config_fan & 0x08) && data->pwm1_freq == 8) | |
833 | data->pwm_highres = true; | |
834 | if (config_enhanced & 0x08) | |
e872c91e | 835 | data->remote_unsigned = true; |
210961c4 GR |
836 | } |
837 | ||
1da177e4 LT |
838 | /* Show some debug info about the LM63 configuration */ |
839 | dev_dbg(&client->dev, "Alert/tach pin configured for %s\n", | |
840 | (data->config & 0x04) ? "tachometer input" : | |
841 | "alert output"); | |
842 | dev_dbg(&client->dev, "PWM clock %s kHz, output frequency %u Hz\n", | |
843 | (data->config_fan & 0x08) ? "1.4" : "360", | |
844 | ((data->config_fan & 0x08) ? 700 : 180000) / data->pwm1_freq); | |
845 | dev_dbg(&client->dev, "PWM output active %s, %s mode\n", | |
846 | (data->config_fan & 0x10) ? "low" : "high", | |
847 | (data->config_fan & 0x20) ? "manual" : "auto"); | |
848 | } | |
849 | ||
d5957be2 | 850 | static int lm63_remove(struct i2c_client *client) |
1da177e4 | 851 | { |
943b0830 | 852 | struct lm63_data *data = i2c_get_clientdata(client); |
1da177e4 | 853 | |
1beeffe4 | 854 | hwmon_device_unregister(data->hwmon_dev); |
f496b2d4 | 855 | device_remove_file(&client->dev, &dev_attr_temp2_type); |
0e39e01c JD |
856 | sysfs_remove_group(&client->dev.kobj, &lm63_group); |
857 | sysfs_remove_group(&client->dev.kobj, &lm63_group_fan1); | |
943b0830 | 858 | |
943b0830 | 859 | kfree(data); |
1da177e4 LT |
860 | return 0; |
861 | } | |
862 | ||
863 | static struct lm63_data *lm63_update_device(struct device *dev) | |
864 | { | |
865 | struct i2c_client *client = to_i2c_client(dev); | |
866 | struct lm63_data *data = i2c_get_clientdata(client); | |
04738b2b | 867 | unsigned long next_update; |
1da177e4 | 868 | |
9a61bf63 | 869 | mutex_lock(&data->update_lock); |
1da177e4 | 870 | |
04738b2b GR |
871 | next_update = data->last_updated |
872 | + msecs_to_jiffies(data->update_interval) + 1; | |
873 | ||
874 | if (time_after(jiffies, next_update) || !data->valid) { | |
1da177e4 LT |
875 | if (data->config & 0x04) { /* tachometer enabled */ |
876 | /* order matters for fan1_input */ | |
bc51ae11 JD |
877 | data->fan[0] = i2c_smbus_read_byte_data(client, |
878 | LM63_REG_TACH_COUNT_LSB) & 0xFC; | |
879 | data->fan[0] |= i2c_smbus_read_byte_data(client, | |
880 | LM63_REG_TACH_COUNT_MSB) << 8; | |
881 | data->fan[1] = (i2c_smbus_read_byte_data(client, | |
882 | LM63_REG_TACH_LIMIT_LSB) & 0xFC) | |
883 | | (i2c_smbus_read_byte_data(client, | |
884 | LM63_REG_TACH_LIMIT_MSB) << 8); | |
1da177e4 LT |
885 | } |
886 | ||
887 | data->pwm1_freq = i2c_smbus_read_byte_data(client, | |
888 | LM63_REG_PWM_FREQ); | |
889 | if (data->pwm1_freq == 0) | |
890 | data->pwm1_freq = 1; | |
891 | data->pwm1_value = i2c_smbus_read_byte_data(client, | |
892 | LM63_REG_PWM_VALUE); | |
893 | ||
bc51ae11 JD |
894 | data->temp8[0] = i2c_smbus_read_byte_data(client, |
895 | LM63_REG_LOCAL_TEMP); | |
896 | data->temp8[1] = i2c_smbus_read_byte_data(client, | |
897 | LM63_REG_LOCAL_HIGH); | |
1da177e4 LT |
898 | |
899 | /* order matters for temp2_input */ | |
bc51ae11 JD |
900 | data->temp11[0] = i2c_smbus_read_byte_data(client, |
901 | LM63_REG_REMOTE_TEMP_MSB) << 8; | |
902 | data->temp11[0] |= i2c_smbus_read_byte_data(client, | |
903 | LM63_REG_REMOTE_TEMP_LSB); | |
904 | data->temp11[1] = (i2c_smbus_read_byte_data(client, | |
1da177e4 LT |
905 | LM63_REG_REMOTE_LOW_MSB) << 8) |
906 | | i2c_smbus_read_byte_data(client, | |
907 | LM63_REG_REMOTE_LOW_LSB); | |
bc51ae11 JD |
908 | data->temp11[2] = (i2c_smbus_read_byte_data(client, |
909 | LM63_REG_REMOTE_HIGH_MSB) << 8) | |
910 | | i2c_smbus_read_byte_data(client, | |
911 | LM63_REG_REMOTE_HIGH_LSB); | |
786375f7 GR |
912 | data->temp11[3] = (i2c_smbus_read_byte_data(client, |
913 | LM63_REG_REMOTE_OFFSET_MSB) << 8) | |
914 | | i2c_smbus_read_byte_data(client, | |
915 | LM63_REG_REMOTE_OFFSET_LSB); | |
e872c91e GR |
916 | |
917 | if (data->kind == lm96163) | |
918 | data->temp11u = (i2c_smbus_read_byte_data(client, | |
919 | LM96163_REG_REMOTE_TEMP_U_MSB) << 8) | |
920 | | i2c_smbus_read_byte_data(client, | |
921 | LM96163_REG_REMOTE_TEMP_U_LSB); | |
922 | ||
bc51ae11 JD |
923 | data->temp8[2] = i2c_smbus_read_byte_data(client, |
924 | LM63_REG_REMOTE_TCRIT); | |
1da177e4 LT |
925 | data->temp2_crit_hyst = i2c_smbus_read_byte_data(client, |
926 | LM63_REG_REMOTE_TCRIT_HYST); | |
927 | ||
928 | data->alarms = i2c_smbus_read_byte_data(client, | |
929 | LM63_REG_ALERT_STATUS) & 0x7F; | |
930 | ||
931 | data->last_updated = jiffies; | |
932 | data->valid = 1; | |
933 | } | |
934 | ||
9a61bf63 | 935 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
936 | |
937 | return data; | |
938 | } | |
939 | ||
940 | static int __init sensors_lm63_init(void) | |
941 | { | |
942 | return i2c_add_driver(&lm63_driver); | |
943 | } | |
944 | ||
945 | static void __exit sensors_lm63_exit(void) | |
946 | { | |
947 | i2c_del_driver(&lm63_driver); | |
948 | } | |
949 | ||
950 | MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>"); | |
951 | MODULE_DESCRIPTION("LM63 driver"); | |
952 | MODULE_LICENSE("GPL"); | |
953 | ||
954 | module_init(sensors_lm63_init); | |
955 | module_exit(sensors_lm63_exit); |