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 | |
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 | 60 | static 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 | |
78 | ||
79 | #define LM63_REG_LOCAL_TEMP 0x00 | |
80 | #define LM63_REG_LOCAL_HIGH 0x05 | |
81 | ||
82 | #define LM63_REG_REMOTE_TEMP_MSB 0x01 | |
83 | #define LM63_REG_REMOTE_TEMP_LSB 0x10 | |
84 | #define LM63_REG_REMOTE_OFFSET_MSB 0x11 | |
85 | #define LM63_REG_REMOTE_OFFSET_LSB 0x12 | |
86 | #define LM63_REG_REMOTE_HIGH_MSB 0x07 | |
87 | #define LM63_REG_REMOTE_HIGH_LSB 0x13 | |
88 | #define LM63_REG_REMOTE_LOW_MSB 0x08 | |
89 | #define LM63_REG_REMOTE_LOW_LSB 0x14 | |
90 | #define LM63_REG_REMOTE_TCRIT 0x19 | |
91 | #define LM63_REG_REMOTE_TCRIT_HYST 0x21 | |
92 | ||
93 | #define LM63_REG_ALERT_STATUS 0x02 | |
94 | #define LM63_REG_ALERT_MASK 0x16 | |
95 | ||
96 | #define LM63_REG_MAN_ID 0xFE | |
97 | #define LM63_REG_CHIP_ID 0xFF | |
98 | ||
f496b2d4 | 99 | #define LM96163_REG_TRUTHERM 0x30 |
e872c91e GR |
100 | #define LM96163_REG_REMOTE_TEMP_U_MSB 0x31 |
101 | #define LM96163_REG_REMOTE_TEMP_U_LSB 0x32 | |
210961c4 GR |
102 | #define LM96163_REG_CONFIG_ENHANCED 0x45 |
103 | ||
04738b2b GR |
104 | #define LM63_MAX_CONVRATE 9 |
105 | ||
106 | #define LM63_MAX_CONVRATE_HZ 32 | |
107 | #define LM96163_MAX_CONVRATE_HZ 26 | |
108 | ||
1da177e4 LT |
109 | /* |
110 | * Conversions and various macros | |
111 | * For tachometer counts, the LM63 uses 16-bit values. | |
112 | * For local temperature and high limit, remote critical limit and hysteresis | |
44bbe87e | 113 | * value, it uses signed 8-bit values with LSB = 1 degree Celsius. |
1da177e4 | 114 | * For remote temperature, low and high limits, it uses signed 11-bit values |
44bbe87e | 115 | * with LSB = 0.125 degree Celsius, left-justified in 16-bit registers. |
2778fb13 DE |
116 | * For LM64 the actual remote diode temperature is 16 degree Celsius higher |
117 | * than the register reading. Remote temperature setpoints have to be | |
118 | * adapted accordingly. | |
1da177e4 LT |
119 | */ |
120 | ||
121 | #define FAN_FROM_REG(reg) ((reg) == 0xFFFC || (reg) == 0 ? 0 : \ | |
122 | 5400000 / (reg)) | |
123 | #define FAN_TO_REG(val) ((val) <= 82 ? 0xFFFC : \ | |
124 | (5400000 / (val)) & 0xFFFC) | |
125 | #define TEMP8_FROM_REG(reg) ((reg) * 1000) | |
126 | #define TEMP8_TO_REG(val) ((val) <= -128000 ? -128 : \ | |
127 | (val) >= 127000 ? 127 : \ | |
128 | (val) < 0 ? ((val) - 500) / 1000 : \ | |
129 | ((val) + 500) / 1000) | |
94e55df4 GR |
130 | #define TEMP8U_TO_REG(val) ((val) <= 0 ? 0 : \ |
131 | (val) >= 255000 ? 255 : \ | |
132 | ((val) + 500) / 1000) | |
1da177e4 LT |
133 | #define TEMP11_FROM_REG(reg) ((reg) / 32 * 125) |
134 | #define TEMP11_TO_REG(val) ((val) <= -128000 ? 0x8000 : \ | |
135 | (val) >= 127875 ? 0x7FE0 : \ | |
136 | (val) < 0 ? ((val) - 62) / 125 * 32 : \ | |
137 | ((val) + 62) / 125 * 32) | |
e872c91e GR |
138 | #define TEMP11U_TO_REG(val) ((val) <= 0 ? 0 : \ |
139 | (val) >= 255875 ? 0xFFE0 : \ | |
140 | ((val) + 62) / 125 * 32) | |
1da177e4 LT |
141 | #define HYST_TO_REG(val) ((val) <= 0 ? 0 : \ |
142 | (val) >= 127000 ? 127 : \ | |
143 | ((val) + 500) / 1000) | |
144 | ||
04738b2b GR |
145 | #define UPDATE_INTERVAL(max, rate) \ |
146 | ((1000 << (LM63_MAX_CONVRATE - (rate))) / (max)) | |
147 | ||
1da177e4 LT |
148 | /* |
149 | * Functions declaration | |
150 | */ | |
151 | ||
d5957be2 JD |
152 | static int lm63_probe(struct i2c_client *client, |
153 | const struct i2c_device_id *id); | |
154 | static int lm63_remove(struct i2c_client *client); | |
1da177e4 LT |
155 | |
156 | static struct lm63_data *lm63_update_device(struct device *dev); | |
157 | ||
310ec792 | 158 | static int lm63_detect(struct i2c_client *client, struct i2c_board_info *info); |
1da177e4 LT |
159 | static void lm63_init_client(struct i2c_client *client); |
160 | ||
210961c4 | 161 | enum chips { lm63, lm64, lm96163 }; |
10f2ed31 | 162 | |
1da177e4 LT |
163 | /* |
164 | * Driver data (common to all clients) | |
165 | */ | |
166 | ||
d5957be2 | 167 | static const struct i2c_device_id lm63_id[] = { |
10f2ed31 MG |
168 | { "lm63", lm63 }, |
169 | { "lm64", lm64 }, | |
210961c4 | 170 | { "lm96163", lm96163 }, |
d5957be2 JD |
171 | { } |
172 | }; | |
173 | MODULE_DEVICE_TABLE(i2c, lm63_id); | |
174 | ||
1da177e4 | 175 | static struct i2c_driver lm63_driver = { |
d5957be2 | 176 | .class = I2C_CLASS_HWMON, |
cdaf7934 | 177 | .driver = { |
cdaf7934 LR |
178 | .name = "lm63", |
179 | }, | |
d5957be2 JD |
180 | .probe = lm63_probe, |
181 | .remove = lm63_remove, | |
182 | .id_table = lm63_id, | |
183 | .detect = lm63_detect, | |
c3813d6a | 184 | .address_list = normal_i2c, |
1da177e4 LT |
185 | }; |
186 | ||
187 | /* | |
188 | * Client data (each client gets its own) | |
189 | */ | |
190 | ||
191 | struct lm63_data { | |
1beeffe4 | 192 | struct device *hwmon_dev; |
9a61bf63 | 193 | struct mutex update_lock; |
1da177e4 LT |
194 | char valid; /* zero until following fields are valid */ |
195 | unsigned long last_updated; /* in jiffies */ | |
04738b2b | 196 | enum chips kind; |
2778fb13 | 197 | int temp2_offset; |
1da177e4 | 198 | |
04738b2b GR |
199 | int update_interval; /* in milliseconds */ |
200 | int max_convrate_hz; | |
201 | ||
1da177e4 LT |
202 | /* registers values */ |
203 | u8 config, config_fan; | |
bc51ae11 JD |
204 | u16 fan[2]; /* 0: input |
205 | 1: low limit */ | |
1da177e4 LT |
206 | u8 pwm1_freq; |
207 | u8 pwm1_value; | |
bc51ae11 JD |
208 | s8 temp8[3]; /* 0: local input |
209 | 1: local high limit | |
210 | 2: remote critical limit */ | |
786375f7 | 211 | s16 temp11[4]; /* 0: remote input |
bc51ae11 | 212 | 1: remote low limit |
786375f7 GR |
213 | 2: remote high limit |
214 | 3: remote offset */ | |
e872c91e | 215 | u16 temp11u; /* remote input (unsigned) */ |
1da177e4 LT |
216 | u8 temp2_crit_hyst; |
217 | u8 alarms; | |
210961c4 | 218 | bool pwm_highres; |
e872c91e | 219 | bool remote_unsigned; /* true if unsigned remote upper limits */ |
f496b2d4 | 220 | bool trutherm; |
1da177e4 LT |
221 | }; |
222 | ||
e872c91e GR |
223 | static inline int temp8_from_reg(struct lm63_data *data, int nr) |
224 | { | |
225 | if (data->remote_unsigned) | |
226 | return TEMP8_FROM_REG((u8)data->temp8[nr]); | |
227 | return TEMP8_FROM_REG(data->temp8[nr]); | |
228 | } | |
229 | ||
1da177e4 LT |
230 | /* |
231 | * Sysfs callback functions and files | |
232 | */ | |
233 | ||
bc51ae11 JD |
234 | static ssize_t show_fan(struct device *dev, struct device_attribute *devattr, |
235 | char *buf) | |
236 | { | |
237 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
238 | struct lm63_data *data = lm63_update_device(dev); | |
239 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[attr->index])); | |
1da177e4 | 240 | } |
1da177e4 | 241 | |
bc51ae11 JD |
242 | static ssize_t set_fan(struct device *dev, struct device_attribute *dummy, |
243 | const char *buf, size_t count) | |
1da177e4 LT |
244 | { |
245 | struct i2c_client *client = to_i2c_client(dev); | |
246 | struct lm63_data *data = i2c_get_clientdata(client); | |
662bda28 GR |
247 | unsigned long val; |
248 | int err; | |
249 | ||
250 | err = kstrtoul(buf, 10, &val); | |
251 | if (err) | |
252 | return err; | |
1da177e4 | 253 | |
9a61bf63 | 254 | mutex_lock(&data->update_lock); |
bc51ae11 | 255 | data->fan[1] = FAN_TO_REG(val); |
1da177e4 | 256 | i2c_smbus_write_byte_data(client, LM63_REG_TACH_LIMIT_LSB, |
bc51ae11 | 257 | data->fan[1] & 0xFF); |
1da177e4 | 258 | i2c_smbus_write_byte_data(client, LM63_REG_TACH_LIMIT_MSB, |
bc51ae11 | 259 | data->fan[1] >> 8); |
9a61bf63 | 260 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
261 | return count; |
262 | } | |
263 | ||
bc51ae11 JD |
264 | static ssize_t show_pwm1(struct device *dev, struct device_attribute *dummy, |
265 | char *buf) | |
1da177e4 LT |
266 | { |
267 | struct lm63_data *data = lm63_update_device(dev); | |
210961c4 GR |
268 | int pwm; |
269 | ||
270 | if (data->pwm_highres) | |
271 | pwm = data->pwm1_value; | |
272 | else | |
273 | pwm = data->pwm1_value >= 2 * data->pwm1_freq ? | |
1da177e4 | 274 | 255 : (data->pwm1_value * 255 + data->pwm1_freq) / |
210961c4 GR |
275 | (2 * data->pwm1_freq); |
276 | ||
277 | return sprintf(buf, "%d\n", pwm); | |
1da177e4 LT |
278 | } |
279 | ||
bc51ae11 JD |
280 | static ssize_t set_pwm1(struct device *dev, struct device_attribute *dummy, |
281 | const char *buf, size_t count) | |
1da177e4 LT |
282 | { |
283 | struct i2c_client *client = to_i2c_client(dev); | |
284 | struct lm63_data *data = i2c_get_clientdata(client); | |
285 | unsigned long val; | |
662bda28 GR |
286 | int err; |
287 | ||
1da177e4 LT |
288 | if (!(data->config_fan & 0x20)) /* register is read-only */ |
289 | return -EPERM; | |
290 | ||
662bda28 GR |
291 | err = kstrtoul(buf, 10, &val); |
292 | if (err) | |
293 | return err; | |
294 | ||
210961c4 | 295 | val = SENSORS_LIMIT(val, 0, 255); |
9a61bf63 | 296 | mutex_lock(&data->update_lock); |
210961c4 | 297 | data->pwm1_value = data->pwm_highres ? val : |
1da177e4 LT |
298 | (val * data->pwm1_freq * 2 + 127) / 255; |
299 | i2c_smbus_write_byte_data(client, LM63_REG_PWM_VALUE, data->pwm1_value); | |
9a61bf63 | 300 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
301 | return count; |
302 | } | |
303 | ||
662bda28 GR |
304 | static ssize_t show_pwm1_enable(struct device *dev, |
305 | struct device_attribute *dummy, char *buf) | |
1da177e4 LT |
306 | { |
307 | struct lm63_data *data = lm63_update_device(dev); | |
308 | return sprintf(buf, "%d\n", data->config_fan & 0x20 ? 1 : 2); | |
309 | } | |
310 | ||
2778fb13 DE |
311 | /* |
312 | * There are 8bit registers for both local(temp1) and remote(temp2) sensor. | |
313 | * For remote sensor registers temp2_offset has to be considered, | |
314 | * for local sensor it must not. | |
315 | * So we need separate 8bit accessors for local and remote sensor. | |
316 | */ | |
317 | static ssize_t show_local_temp8(struct device *dev, | |
318 | struct device_attribute *devattr, | |
319 | char *buf) | |
bc51ae11 JD |
320 | { |
321 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
322 | struct lm63_data *data = lm63_update_device(dev); | |
323 | return sprintf(buf, "%d\n", TEMP8_FROM_REG(data->temp8[attr->index])); | |
1da177e4 | 324 | } |
bc51ae11 | 325 | |
2778fb13 DE |
326 | static ssize_t show_remote_temp8(struct device *dev, |
327 | struct device_attribute *devattr, | |
328 | char *buf) | |
329 | { | |
330 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
331 | struct lm63_data *data = lm63_update_device(dev); | |
e872c91e | 332 | return sprintf(buf, "%d\n", temp8_from_reg(data, attr->index) |
2778fb13 DE |
333 | + data->temp2_offset); |
334 | } | |
335 | ||
94e55df4 GR |
336 | static ssize_t set_temp8(struct device *dev, struct device_attribute *devattr, |
337 | const char *buf, size_t count) | |
bc51ae11 | 338 | { |
94e55df4 | 339 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
bc51ae11 JD |
340 | struct i2c_client *client = to_i2c_client(dev); |
341 | struct lm63_data *data = i2c_get_clientdata(client); | |
94e55df4 GR |
342 | int nr = attr->index; |
343 | int reg = nr == 2 ? LM63_REG_REMOTE_TCRIT : LM63_REG_LOCAL_HIGH; | |
662bda28 GR |
344 | long val; |
345 | int err; | |
94e55df4 | 346 | int temp; |
662bda28 GR |
347 | |
348 | err = kstrtol(buf, 10, &val); | |
349 | if (err) | |
350 | return err; | |
bc51ae11 | 351 | |
9a61bf63 | 352 | mutex_lock(&data->update_lock); |
94e55df4 GR |
353 | if (nr == 2) { |
354 | if (data->remote_unsigned) | |
355 | temp = TEMP8U_TO_REG(val - data->temp2_offset); | |
356 | else | |
357 | temp = TEMP8_TO_REG(val - data->temp2_offset); | |
358 | } else { | |
359 | temp = TEMP8_TO_REG(val); | |
360 | } | |
361 | data->temp8[nr] = temp; | |
362 | i2c_smbus_write_byte_data(client, reg, temp); | |
9a61bf63 | 363 | mutex_unlock(&data->update_lock); |
bc51ae11 | 364 | return count; |
1da177e4 | 365 | } |
bc51ae11 JD |
366 | |
367 | static ssize_t show_temp11(struct device *dev, struct device_attribute *devattr, | |
368 | char *buf) | |
369 | { | |
370 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
371 | struct lm63_data *data = lm63_update_device(dev); | |
e872c91e GR |
372 | int nr = attr->index; |
373 | int temp; | |
374 | ||
375 | if (!nr) { | |
376 | /* | |
377 | * Use unsigned temperature unless its value is zero. | |
378 | * If it is zero, use signed temperature. | |
379 | */ | |
380 | if (data->temp11u) | |
381 | temp = TEMP11_FROM_REG(data->temp11u); | |
382 | else | |
383 | temp = TEMP11_FROM_REG(data->temp11[nr]); | |
384 | } else { | |
385 | if (data->remote_unsigned && nr == 2) | |
386 | temp = TEMP11_FROM_REG((u16)data->temp11[nr]); | |
387 | else | |
388 | temp = TEMP11_FROM_REG(data->temp11[nr]); | |
389 | } | |
390 | return sprintf(buf, "%d\n", temp + data->temp2_offset); | |
1da177e4 | 391 | } |
bc51ae11 JD |
392 | |
393 | static ssize_t set_temp11(struct device *dev, struct device_attribute *devattr, | |
394 | const char *buf, size_t count) | |
395 | { | |
786375f7 | 396 | static const u8 reg[6] = { |
bc51ae11 JD |
397 | LM63_REG_REMOTE_LOW_MSB, |
398 | LM63_REG_REMOTE_LOW_LSB, | |
399 | LM63_REG_REMOTE_HIGH_MSB, | |
400 | LM63_REG_REMOTE_HIGH_LSB, | |
786375f7 GR |
401 | LM63_REG_REMOTE_OFFSET_MSB, |
402 | LM63_REG_REMOTE_OFFSET_LSB, | |
bc51ae11 JD |
403 | }; |
404 | ||
405 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
406 | struct i2c_client *client = to_i2c_client(dev); | |
407 | struct lm63_data *data = i2c_get_clientdata(client); | |
662bda28 GR |
408 | long val; |
409 | int err; | |
bc51ae11 JD |
410 | int nr = attr->index; |
411 | ||
662bda28 GR |
412 | err = kstrtol(buf, 10, &val); |
413 | if (err) | |
414 | return err; | |
415 | ||
9a61bf63 | 416 | mutex_lock(&data->update_lock); |
e872c91e GR |
417 | if (data->remote_unsigned && nr == 2) |
418 | data->temp11[nr] = TEMP11U_TO_REG(val - data->temp2_offset); | |
419 | else | |
420 | data->temp11[nr] = TEMP11_TO_REG(val - data->temp2_offset); | |
421 | ||
bc51ae11 JD |
422 | i2c_smbus_write_byte_data(client, reg[(nr - 1) * 2], |
423 | data->temp11[nr] >> 8); | |
424 | i2c_smbus_write_byte_data(client, reg[(nr - 1) * 2 + 1], | |
425 | data->temp11[nr] & 0xff); | |
9a61bf63 | 426 | mutex_unlock(&data->update_lock); |
bc51ae11 | 427 | return count; |
1da177e4 | 428 | } |
1da177e4 | 429 | |
662bda28 GR |
430 | /* |
431 | * Hysteresis register holds a relative value, while we want to present | |
432 | * an absolute to user-space | |
433 | */ | |
434 | static ssize_t show_temp2_crit_hyst(struct device *dev, | |
435 | struct device_attribute *dummy, char *buf) | |
1da177e4 LT |
436 | { |
437 | struct lm63_data *data = lm63_update_device(dev); | |
e872c91e | 438 | return sprintf(buf, "%d\n", temp8_from_reg(data, 2) |
2778fb13 | 439 | + data->temp2_offset |
1da177e4 LT |
440 | - TEMP8_FROM_REG(data->temp2_crit_hyst)); |
441 | } | |
442 | ||
662bda28 GR |
443 | /* |
444 | * And now the other way around, user-space provides an absolute | |
445 | * hysteresis value and we have to store a relative one | |
446 | */ | |
447 | static ssize_t set_temp2_crit_hyst(struct device *dev, | |
448 | struct device_attribute *dummy, | |
bc51ae11 | 449 | const char *buf, size_t count) |
1da177e4 LT |
450 | { |
451 | struct i2c_client *client = to_i2c_client(dev); | |
452 | struct lm63_data *data = i2c_get_clientdata(client); | |
662bda28 GR |
453 | long val; |
454 | int err; | |
1da177e4 LT |
455 | long hyst; |
456 | ||
662bda28 GR |
457 | err = kstrtol(buf, 10, &val); |
458 | if (err) | |
459 | return err; | |
460 | ||
9a61bf63 | 461 | mutex_lock(&data->update_lock); |
e872c91e | 462 | hyst = temp8_from_reg(data, 2) + data->temp2_offset - val; |
1da177e4 LT |
463 | i2c_smbus_write_byte_data(client, LM63_REG_REMOTE_TCRIT_HYST, |
464 | HYST_TO_REG(hyst)); | |
9a61bf63 | 465 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
466 | return count; |
467 | } | |
468 | ||
04738b2b GR |
469 | /* |
470 | * Set conversion rate. | |
471 | * client->update_lock must be held when calling this function. | |
472 | */ | |
473 | static void lm63_set_convrate(struct i2c_client *client, struct lm63_data *data, | |
474 | unsigned int interval) | |
475 | { | |
476 | int i; | |
477 | unsigned int update_interval; | |
478 | ||
479 | /* Shift calculations to avoid rounding errors */ | |
480 | interval <<= 6; | |
481 | ||
482 | /* find the nearest update rate */ | |
483 | update_interval = (1 << (LM63_MAX_CONVRATE + 6)) * 1000 | |
484 | / data->max_convrate_hz; | |
485 | for (i = 0; i < LM63_MAX_CONVRATE; i++, update_interval >>= 1) | |
486 | if (interval >= update_interval * 3 / 4) | |
487 | break; | |
488 | ||
489 | i2c_smbus_write_byte_data(client, LM63_REG_CONVRATE, i); | |
490 | data->update_interval = UPDATE_INTERVAL(data->max_convrate_hz, i); | |
491 | } | |
492 | ||
493 | static ssize_t show_update_interval(struct device *dev, | |
494 | struct device_attribute *attr, char *buf) | |
495 | { | |
496 | struct lm63_data *data = dev_get_drvdata(dev); | |
497 | ||
498 | return sprintf(buf, "%u\n", data->update_interval); | |
499 | } | |
500 | ||
501 | static ssize_t set_update_interval(struct device *dev, | |
502 | struct device_attribute *attr, | |
503 | const char *buf, size_t count) | |
504 | { | |
505 | struct i2c_client *client = to_i2c_client(dev); | |
506 | struct lm63_data *data = i2c_get_clientdata(client); | |
507 | unsigned long val; | |
508 | int err; | |
509 | ||
510 | err = kstrtoul(buf, 10, &val); | |
511 | if (err) | |
512 | return err; | |
513 | ||
514 | mutex_lock(&data->update_lock); | |
515 | lm63_set_convrate(client, data, SENSORS_LIMIT(val, 0, 100000)); | |
516 | mutex_unlock(&data->update_lock); | |
517 | ||
518 | return count; | |
519 | } | |
520 | ||
f496b2d4 GR |
521 | static ssize_t show_type(struct device *dev, struct device_attribute *attr, |
522 | char *buf) | |
523 | { | |
524 | struct i2c_client *client = to_i2c_client(dev); | |
525 | struct lm63_data *data = i2c_get_clientdata(client); | |
526 | ||
527 | return sprintf(buf, data->trutherm ? "1\n" : "2\n"); | |
528 | } | |
529 | ||
530 | static ssize_t set_type(struct device *dev, struct device_attribute *attr, | |
531 | const char *buf, size_t count) | |
532 | { | |
533 | struct i2c_client *client = to_i2c_client(dev); | |
534 | struct lm63_data *data = i2c_get_clientdata(client); | |
535 | unsigned long val; | |
536 | int ret; | |
537 | u8 reg; | |
538 | ||
539 | ret = kstrtoul(buf, 10, &val); | |
540 | if (ret < 0) | |
541 | return ret; | |
542 | if (val != 1 && val != 2) | |
543 | return -EINVAL; | |
544 | ||
545 | mutex_lock(&data->update_lock); | |
546 | data->trutherm = val == 1; | |
547 | reg = i2c_smbus_read_byte_data(client, LM96163_REG_TRUTHERM) & ~0x02; | |
548 | i2c_smbus_write_byte_data(client, LM96163_REG_TRUTHERM, | |
549 | reg | (data->trutherm ? 0x02 : 0x00)); | |
550 | data->valid = 0; | |
551 | mutex_unlock(&data->update_lock); | |
552 | ||
553 | return count; | |
554 | } | |
555 | ||
bc51ae11 JD |
556 | static ssize_t show_alarms(struct device *dev, struct device_attribute *dummy, |
557 | char *buf) | |
1da177e4 LT |
558 | { |
559 | struct lm63_data *data = lm63_update_device(dev); | |
560 | return sprintf(buf, "%u\n", data->alarms); | |
561 | } | |
562 | ||
2d45771e JD |
563 | static ssize_t show_alarm(struct device *dev, struct device_attribute *devattr, |
564 | char *buf) | |
565 | { | |
566 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
567 | struct lm63_data *data = lm63_update_device(dev); | |
568 | int bitnr = attr->index; | |
569 | ||
570 | return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1); | |
571 | } | |
572 | ||
bc51ae11 JD |
573 | static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0); |
574 | static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan, | |
575 | set_fan, 1); | |
1da177e4 LT |
576 | |
577 | static DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm1, set_pwm1); | |
578 | static DEVICE_ATTR(pwm1_enable, S_IRUGO, show_pwm1_enable, NULL); | |
579 | ||
2778fb13 DE |
580 | static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_local_temp8, NULL, 0); |
581 | static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_local_temp8, | |
94e55df4 | 582 | set_temp8, 1); |
1da177e4 | 583 | |
bc51ae11 JD |
584 | static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp11, NULL, 0); |
585 | static SENSOR_DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_temp11, | |
586 | set_temp11, 1); | |
587 | static SENSOR_DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp11, | |
588 | set_temp11, 2); | |
786375f7 GR |
589 | static SENSOR_DEVICE_ATTR(temp2_offset, S_IWUSR | S_IRUGO, show_temp11, |
590 | set_temp11, 3); | |
2778fb13 | 591 | static SENSOR_DEVICE_ATTR(temp2_crit, S_IRUGO, show_remote_temp8, |
94e55df4 | 592 | set_temp8, 2); |
1da177e4 LT |
593 | static DEVICE_ATTR(temp2_crit_hyst, S_IWUSR | S_IRUGO, show_temp2_crit_hyst, |
594 | set_temp2_crit_hyst); | |
595 | ||
f496b2d4 GR |
596 | static DEVICE_ATTR(temp2_type, S_IWUSR | S_IRUGO, show_type, set_type); |
597 | ||
2d45771e JD |
598 | /* Individual alarm files */ |
599 | static SENSOR_DEVICE_ATTR(fan1_min_alarm, S_IRUGO, show_alarm, NULL, 0); | |
600 | static SENSOR_DEVICE_ATTR(temp2_crit_alarm, S_IRUGO, show_alarm, NULL, 1); | |
7817a39e | 601 | static SENSOR_DEVICE_ATTR(temp2_fault, S_IRUGO, show_alarm, NULL, 2); |
2d45771e JD |
602 | static SENSOR_DEVICE_ATTR(temp2_min_alarm, S_IRUGO, show_alarm, NULL, 3); |
603 | static SENSOR_DEVICE_ATTR(temp2_max_alarm, S_IRUGO, show_alarm, NULL, 4); | |
604 | static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL, 6); | |
605 | /* Raw alarm file for compatibility */ | |
1da177e4 LT |
606 | static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL); |
607 | ||
04738b2b GR |
608 | static DEVICE_ATTR(update_interval, S_IRUGO | S_IWUSR, show_update_interval, |
609 | set_update_interval); | |
610 | ||
0e39e01c JD |
611 | static struct attribute *lm63_attributes[] = { |
612 | &dev_attr_pwm1.attr, | |
613 | &dev_attr_pwm1_enable.attr, | |
614 | &sensor_dev_attr_temp1_input.dev_attr.attr, | |
615 | &sensor_dev_attr_temp2_input.dev_attr.attr, | |
616 | &sensor_dev_attr_temp2_min.dev_attr.attr, | |
617 | &sensor_dev_attr_temp1_max.dev_attr.attr, | |
618 | &sensor_dev_attr_temp2_max.dev_attr.attr, | |
786375f7 | 619 | &sensor_dev_attr_temp2_offset.dev_attr.attr, |
0e39e01c JD |
620 | &sensor_dev_attr_temp2_crit.dev_attr.attr, |
621 | &dev_attr_temp2_crit_hyst.attr, | |
622 | ||
623 | &sensor_dev_attr_temp2_crit_alarm.dev_attr.attr, | |
7817a39e | 624 | &sensor_dev_attr_temp2_fault.dev_attr.attr, |
0e39e01c JD |
625 | &sensor_dev_attr_temp2_min_alarm.dev_attr.attr, |
626 | &sensor_dev_attr_temp2_max_alarm.dev_attr.attr, | |
627 | &sensor_dev_attr_temp1_max_alarm.dev_attr.attr, | |
628 | &dev_attr_alarms.attr, | |
04738b2b | 629 | &dev_attr_update_interval.attr, |
0e39e01c JD |
630 | NULL |
631 | }; | |
632 | ||
94e55df4 GR |
633 | /* |
634 | * On LM63, temp2_crit can be set only once, which should be job | |
635 | * of the bootloader. | |
636 | * On LM64, temp2_crit can always be set. | |
637 | * On LM96163, temp2_crit can be set if bit 1 of the configuration | |
638 | * register is true. | |
639 | */ | |
640 | static umode_t lm63_attribute_mode(struct kobject *kobj, | |
641 | struct attribute *attr, int index) | |
642 | { | |
643 | struct device *dev = container_of(kobj, struct device, kobj); | |
644 | struct i2c_client *client = to_i2c_client(dev); | |
645 | struct lm63_data *data = i2c_get_clientdata(client); | |
646 | ||
647 | if (attr == &sensor_dev_attr_temp2_crit.dev_attr.attr | |
648 | && (data->kind == lm64 || | |
649 | (data->kind == lm96163 && (data->config & 0x02)))) | |
650 | return attr->mode | S_IWUSR; | |
651 | ||
652 | return attr->mode; | |
653 | } | |
654 | ||
0e39e01c | 655 | static const struct attribute_group lm63_group = { |
94e55df4 | 656 | .is_visible = lm63_attribute_mode, |
0e39e01c JD |
657 | .attrs = lm63_attributes, |
658 | }; | |
659 | ||
660 | static struct attribute *lm63_attributes_fan1[] = { | |
661 | &sensor_dev_attr_fan1_input.dev_attr.attr, | |
662 | &sensor_dev_attr_fan1_min.dev_attr.attr, | |
663 | ||
664 | &sensor_dev_attr_fan1_min_alarm.dev_attr.attr, | |
665 | NULL | |
666 | }; | |
667 | ||
668 | static const struct attribute_group lm63_group_fan1 = { | |
669 | .attrs = lm63_attributes_fan1, | |
670 | }; | |
671 | ||
1da177e4 LT |
672 | /* |
673 | * Real code | |
674 | */ | |
675 | ||
d5957be2 | 676 | /* Return 0 if detection is successful, -ENODEV otherwise */ |
310ec792 | 677 | static int lm63_detect(struct i2c_client *new_client, |
d5957be2 | 678 | struct i2c_board_info *info) |
1da177e4 | 679 | { |
d5957be2 | 680 | struct i2c_adapter *adapter = new_client->adapter; |
52df6440 JD |
681 | u8 man_id, chip_id, reg_config1, reg_config2; |
682 | u8 reg_alert_status, reg_alert_mask; | |
10f2ed31 | 683 | int address = new_client->addr; |
1da177e4 LT |
684 | |
685 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) | |
d5957be2 | 686 | return -ENODEV; |
1da177e4 | 687 | |
52df6440 JD |
688 | man_id = i2c_smbus_read_byte_data(new_client, LM63_REG_MAN_ID); |
689 | chip_id = i2c_smbus_read_byte_data(new_client, LM63_REG_CHIP_ID); | |
690 | ||
691 | reg_config1 = i2c_smbus_read_byte_data(new_client, | |
692 | LM63_REG_CONFIG1); | |
693 | reg_config2 = i2c_smbus_read_byte_data(new_client, | |
694 | LM63_REG_CONFIG2); | |
695 | reg_alert_status = i2c_smbus_read_byte_data(new_client, | |
696 | LM63_REG_ALERT_STATUS); | |
697 | reg_alert_mask = i2c_smbus_read_byte_data(new_client, | |
698 | LM63_REG_ALERT_MASK); | |
699 | ||
700 | if (man_id != 0x01 /* National Semiconductor */ | |
52df6440 JD |
701 | || (reg_config1 & 0x18) != 0x00 |
702 | || (reg_config2 & 0xF8) != 0x00 | |
703 | || (reg_alert_status & 0x20) != 0x00 | |
704 | || (reg_alert_mask & 0xA4) != 0xA4) { | |
705 | dev_dbg(&adapter->dev, | |
706 | "Unsupported chip (man_id=0x%02X, chip_id=0x%02X)\n", | |
707 | man_id, chip_id); | |
708 | return -ENODEV; | |
1da177e4 LT |
709 | } |
710 | ||
10f2ed31 MG |
711 | if (chip_id == 0x41 && address == 0x4c) |
712 | strlcpy(info->type, "lm63", I2C_NAME_SIZE); | |
713 | else if (chip_id == 0x51 && (address == 0x18 || address == 0x4e)) | |
714 | strlcpy(info->type, "lm64", I2C_NAME_SIZE); | |
210961c4 GR |
715 | else if (chip_id == 0x49 && address == 0x4c) |
716 | strlcpy(info->type, "lm96163", I2C_NAME_SIZE); | |
10f2ed31 MG |
717 | else |
718 | return -ENODEV; | |
d5957be2 JD |
719 | |
720 | return 0; | |
721 | } | |
722 | ||
723 | static int lm63_probe(struct i2c_client *new_client, | |
724 | const struct i2c_device_id *id) | |
725 | { | |
726 | struct lm63_data *data; | |
727 | int err; | |
728 | ||
729 | data = kzalloc(sizeof(struct lm63_data), GFP_KERNEL); | |
730 | if (!data) { | |
731 | err = -ENOMEM; | |
732 | goto exit; | |
733 | } | |
734 | ||
735 | i2c_set_clientdata(new_client, data); | |
1da177e4 | 736 | data->valid = 0; |
9a61bf63 | 737 | mutex_init(&data->update_lock); |
1da177e4 | 738 | |
2778fb13 DE |
739 | /* Set the device type */ |
740 | data->kind = id->driver_data; | |
741 | if (data->kind == lm64) | |
742 | data->temp2_offset = 16000; | |
743 | ||
744 | /* Initialize chip */ | |
1da177e4 LT |
745 | lm63_init_client(new_client); |
746 | ||
747 | /* Register sysfs hooks */ | |
662bda28 GR |
748 | err = sysfs_create_group(&new_client->dev.kobj, &lm63_group); |
749 | if (err) | |
d5957be2 | 750 | goto exit_free; |
0e39e01c | 751 | if (data->config & 0x04) { /* tachometer enabled */ |
662bda28 GR |
752 | err = sysfs_create_group(&new_client->dev.kobj, |
753 | &lm63_group_fan1); | |
754 | if (err) | |
0e39e01c | 755 | goto exit_remove_files; |
943b0830 | 756 | } |
f496b2d4 GR |
757 | if (data->kind == lm96163) { |
758 | err = device_create_file(&new_client->dev, | |
759 | &dev_attr_temp2_type); | |
760 | if (err) | |
761 | goto exit_remove_files; | |
762 | } | |
943b0830 | 763 | |
1beeffe4 TJ |
764 | data->hwmon_dev = hwmon_device_register(&new_client->dev); |
765 | if (IS_ERR(data->hwmon_dev)) { | |
766 | err = PTR_ERR(data->hwmon_dev); | |
0e39e01c | 767 | goto exit_remove_files; |
1da177e4 | 768 | } |
1da177e4 LT |
769 | |
770 | return 0; | |
771 | ||
0e39e01c | 772 | exit_remove_files: |
f496b2d4 | 773 | device_remove_file(&new_client->dev, &dev_attr_temp2_type); |
0e39e01c JD |
774 | sysfs_remove_group(&new_client->dev.kobj, &lm63_group); |
775 | sysfs_remove_group(&new_client->dev.kobj, &lm63_group_fan1); | |
1da177e4 LT |
776 | exit_free: |
777 | kfree(data); | |
778 | exit: | |
779 | return err; | |
780 | } | |
781 | ||
662bda28 GR |
782 | /* |
783 | * Ideally we shouldn't have to initialize anything, since the BIOS | |
784 | * should have taken care of everything | |
785 | */ | |
1da177e4 LT |
786 | static void lm63_init_client(struct i2c_client *client) |
787 | { | |
788 | struct lm63_data *data = i2c_get_clientdata(client); | |
04738b2b | 789 | u8 convrate; |
1da177e4 LT |
790 | |
791 | data->config = i2c_smbus_read_byte_data(client, LM63_REG_CONFIG1); | |
792 | data->config_fan = i2c_smbus_read_byte_data(client, | |
793 | LM63_REG_CONFIG_FAN); | |
794 | ||
795 | /* Start converting if needed */ | |
796 | if (data->config & 0x40) { /* standby */ | |
898eb71c | 797 | dev_dbg(&client->dev, "Switching to operational mode\n"); |
1da177e4 LT |
798 | data->config &= 0xA7; |
799 | i2c_smbus_write_byte_data(client, LM63_REG_CONFIG1, | |
800 | data->config); | |
801 | } | |
409c0b5b JD |
802 | /* Tachometer is always enabled on LM64 */ |
803 | if (data->kind == lm64) | |
804 | data->config |= 0x04; | |
1da177e4 LT |
805 | |
806 | /* We may need pwm1_freq before ever updating the client data */ | |
807 | data->pwm1_freq = i2c_smbus_read_byte_data(client, LM63_REG_PWM_FREQ); | |
808 | if (data->pwm1_freq == 0) | |
809 | data->pwm1_freq = 1; | |
810 | ||
04738b2b GR |
811 | switch (data->kind) { |
812 | case lm63: | |
813 | case lm64: | |
814 | data->max_convrate_hz = LM63_MAX_CONVRATE_HZ; | |
815 | break; | |
816 | case lm96163: | |
817 | data->max_convrate_hz = LM96163_MAX_CONVRATE_HZ; | |
f496b2d4 GR |
818 | data->trutherm |
819 | = i2c_smbus_read_byte_data(client, | |
820 | LM96163_REG_TRUTHERM) & 0x02; | |
04738b2b GR |
821 | break; |
822 | } | |
823 | convrate = i2c_smbus_read_byte_data(client, LM63_REG_CONVRATE); | |
824 | if (unlikely(convrate > LM63_MAX_CONVRATE)) | |
825 | convrate = LM63_MAX_CONVRATE; | |
826 | data->update_interval = UPDATE_INTERVAL(data->max_convrate_hz, | |
827 | convrate); | |
828 | ||
210961c4 | 829 | /* |
e872c91e GR |
830 | * For LM96163, check if high resolution PWM |
831 | * and unsigned temperature format is enabled. | |
210961c4 GR |
832 | */ |
833 | if (data->kind == lm96163) { | |
834 | u8 config_enhanced | |
835 | = i2c_smbus_read_byte_data(client, | |
836 | LM96163_REG_CONFIG_ENHANCED); | |
837 | if ((config_enhanced & 0x10) | |
838 | && !(data->config_fan & 0x08) && data->pwm1_freq == 8) | |
839 | data->pwm_highres = true; | |
840 | if (config_enhanced & 0x08) | |
e872c91e | 841 | data->remote_unsigned = true; |
210961c4 GR |
842 | } |
843 | ||
1da177e4 | 844 | /* Show some debug info about the LM63 configuration */ |
409c0b5b JD |
845 | if (data->kind == lm63) |
846 | dev_dbg(&client->dev, "Alert/tach pin configured for %s\n", | |
847 | (data->config & 0x04) ? "tachometer input" : | |
848 | "alert output"); | |
1da177e4 LT |
849 | dev_dbg(&client->dev, "PWM clock %s kHz, output frequency %u Hz\n", |
850 | (data->config_fan & 0x08) ? "1.4" : "360", | |
851 | ((data->config_fan & 0x08) ? 700 : 180000) / data->pwm1_freq); | |
852 | dev_dbg(&client->dev, "PWM output active %s, %s mode\n", | |
853 | (data->config_fan & 0x10) ? "low" : "high", | |
854 | (data->config_fan & 0x20) ? "manual" : "auto"); | |
855 | } | |
856 | ||
d5957be2 | 857 | static int lm63_remove(struct i2c_client *client) |
1da177e4 | 858 | { |
943b0830 | 859 | struct lm63_data *data = i2c_get_clientdata(client); |
1da177e4 | 860 | |
1beeffe4 | 861 | hwmon_device_unregister(data->hwmon_dev); |
f496b2d4 | 862 | device_remove_file(&client->dev, &dev_attr_temp2_type); |
0e39e01c JD |
863 | sysfs_remove_group(&client->dev.kobj, &lm63_group); |
864 | sysfs_remove_group(&client->dev.kobj, &lm63_group_fan1); | |
943b0830 | 865 | |
943b0830 | 866 | kfree(data); |
1da177e4 LT |
867 | return 0; |
868 | } | |
869 | ||
870 | static struct lm63_data *lm63_update_device(struct device *dev) | |
871 | { | |
872 | struct i2c_client *client = to_i2c_client(dev); | |
873 | struct lm63_data *data = i2c_get_clientdata(client); | |
04738b2b | 874 | unsigned long next_update; |
1da177e4 | 875 | |
9a61bf63 | 876 | mutex_lock(&data->update_lock); |
1da177e4 | 877 | |
04738b2b GR |
878 | next_update = data->last_updated |
879 | + msecs_to_jiffies(data->update_interval) + 1; | |
880 | ||
881 | if (time_after(jiffies, next_update) || !data->valid) { | |
1da177e4 LT |
882 | if (data->config & 0x04) { /* tachometer enabled */ |
883 | /* order matters for fan1_input */ | |
bc51ae11 JD |
884 | data->fan[0] = i2c_smbus_read_byte_data(client, |
885 | LM63_REG_TACH_COUNT_LSB) & 0xFC; | |
886 | data->fan[0] |= i2c_smbus_read_byte_data(client, | |
887 | LM63_REG_TACH_COUNT_MSB) << 8; | |
888 | data->fan[1] = (i2c_smbus_read_byte_data(client, | |
889 | LM63_REG_TACH_LIMIT_LSB) & 0xFC) | |
890 | | (i2c_smbus_read_byte_data(client, | |
891 | LM63_REG_TACH_LIMIT_MSB) << 8); | |
1da177e4 LT |
892 | } |
893 | ||
894 | data->pwm1_freq = i2c_smbus_read_byte_data(client, | |
895 | LM63_REG_PWM_FREQ); | |
896 | if (data->pwm1_freq == 0) | |
897 | data->pwm1_freq = 1; | |
898 | data->pwm1_value = i2c_smbus_read_byte_data(client, | |
899 | LM63_REG_PWM_VALUE); | |
900 | ||
bc51ae11 JD |
901 | data->temp8[0] = i2c_smbus_read_byte_data(client, |
902 | LM63_REG_LOCAL_TEMP); | |
903 | data->temp8[1] = i2c_smbus_read_byte_data(client, | |
904 | LM63_REG_LOCAL_HIGH); | |
1da177e4 LT |
905 | |
906 | /* order matters for temp2_input */ | |
bc51ae11 JD |
907 | data->temp11[0] = i2c_smbus_read_byte_data(client, |
908 | LM63_REG_REMOTE_TEMP_MSB) << 8; | |
909 | data->temp11[0] |= i2c_smbus_read_byte_data(client, | |
910 | LM63_REG_REMOTE_TEMP_LSB); | |
911 | data->temp11[1] = (i2c_smbus_read_byte_data(client, | |
1da177e4 LT |
912 | LM63_REG_REMOTE_LOW_MSB) << 8) |
913 | | i2c_smbus_read_byte_data(client, | |
914 | LM63_REG_REMOTE_LOW_LSB); | |
bc51ae11 JD |
915 | data->temp11[2] = (i2c_smbus_read_byte_data(client, |
916 | LM63_REG_REMOTE_HIGH_MSB) << 8) | |
917 | | i2c_smbus_read_byte_data(client, | |
918 | LM63_REG_REMOTE_HIGH_LSB); | |
786375f7 GR |
919 | data->temp11[3] = (i2c_smbus_read_byte_data(client, |
920 | LM63_REG_REMOTE_OFFSET_MSB) << 8) | |
921 | | i2c_smbus_read_byte_data(client, | |
922 | LM63_REG_REMOTE_OFFSET_LSB); | |
e872c91e GR |
923 | |
924 | if (data->kind == lm96163) | |
925 | data->temp11u = (i2c_smbus_read_byte_data(client, | |
926 | LM96163_REG_REMOTE_TEMP_U_MSB) << 8) | |
927 | | i2c_smbus_read_byte_data(client, | |
928 | LM96163_REG_REMOTE_TEMP_U_LSB); | |
929 | ||
bc51ae11 JD |
930 | data->temp8[2] = i2c_smbus_read_byte_data(client, |
931 | LM63_REG_REMOTE_TCRIT); | |
1da177e4 LT |
932 | data->temp2_crit_hyst = i2c_smbus_read_byte_data(client, |
933 | LM63_REG_REMOTE_TCRIT_HYST); | |
934 | ||
935 | data->alarms = i2c_smbus_read_byte_data(client, | |
936 | LM63_REG_ALERT_STATUS) & 0x7F; | |
937 | ||
938 | data->last_updated = jiffies; | |
939 | data->valid = 1; | |
940 | } | |
941 | ||
9a61bf63 | 942 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
943 | |
944 | return data; | |
945 | } | |
946 | ||
947 | static int __init sensors_lm63_init(void) | |
948 | { | |
949 | return i2c_add_driver(&lm63_driver); | |
950 | } | |
951 | ||
952 | static void __exit sensors_lm63_exit(void) | |
953 | { | |
954 | i2c_del_driver(&lm63_driver); | |
955 | } | |
956 | ||
957 | MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>"); | |
958 | MODULE_DESCRIPTION("LM63 driver"); | |
959 | MODULE_LICENSE("GPL"); | |
960 | ||
961 | module_init(sensors_lm63_init); | |
962 | module_exit(sensors_lm63_exit); |