Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
09770b26 GR |
2 | * lm85.c - Part of lm_sensors, Linux kernel modules for hardware |
3 | * monitoring | |
4 | * Copyright (c) 1998, 1999 Frodo Looijaard <frodol@dds.nl> | |
5 | * Copyright (c) 2002, 2003 Philip Pokorny <ppokorny@penguincomputing.com> | |
6 | * Copyright (c) 2003 Margit Schubert-While <margitsw@t-online.de> | |
7 | * Copyright (c) 2004 Justin Thiessen <jthiessen@penguincomputing.com> | |
590e8534 | 8 | * Copyright (C) 2007--2014 Jean Delvare <jdelvare@suse.de> |
09770b26 GR |
9 | * |
10 | * Chip details at <http://www.national.com/ds/LM/LM85.pdf> | |
11 | * | |
12 | * This program is free software; you can redistribute it and/or modify | |
13 | * it under the terms of the GNU General Public License as published by | |
14 | * the Free Software Foundation; either version 2 of the License, or | |
15 | * (at your option) any later version. | |
16 | * | |
17 | * This program is distributed in the hope that it will be useful, | |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | * GNU General Public License for more details. | |
21 | * | |
22 | * You should have received a copy of the GNU General Public License | |
23 | * along with this program; if not, write to the Free Software | |
24 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
25 | */ | |
1da177e4 | 26 | |
1da177e4 LT |
27 | #include <linux/module.h> |
28 | #include <linux/init.h> | |
29 | #include <linux/slab.h> | |
30 | #include <linux/jiffies.h> | |
31 | #include <linux/i2c.h> | |
943b0830 | 32 | #include <linux/hwmon.h> |
303760b4 | 33 | #include <linux/hwmon-vid.h> |
b353a487 | 34 | #include <linux/hwmon-sysfs.h> |
943b0830 | 35 | #include <linux/err.h> |
9a61bf63 | 36 | #include <linux/mutex.h> |
0f3721c5 | 37 | #include <linux/util_macros.h> |
1da177e4 LT |
38 | |
39 | /* Addresses to scan */ | |
25e9c86d | 40 | static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END }; |
1da177e4 | 41 | |
e5e9f44c | 42 | enum chips { |
590e8534 | 43 | lm85, |
e5e9f44c | 44 | adm1027, adt7463, adt7468, |
06923f84 | 45 | emc6d100, emc6d102, emc6d103, emc6d103s |
e5e9f44c | 46 | }; |
1da177e4 LT |
47 | |
48 | /* The LM85 registers */ | |
49 | ||
09770b26 GR |
50 | #define LM85_REG_IN(nr) (0x20 + (nr)) |
51 | #define LM85_REG_IN_MIN(nr) (0x44 + (nr) * 2) | |
52 | #define LM85_REG_IN_MAX(nr) (0x45 + (nr) * 2) | |
1da177e4 | 53 | |
09770b26 GR |
54 | #define LM85_REG_TEMP(nr) (0x25 + (nr)) |
55 | #define LM85_REG_TEMP_MIN(nr) (0x4e + (nr) * 2) | |
56 | #define LM85_REG_TEMP_MAX(nr) (0x4f + (nr) * 2) | |
1da177e4 LT |
57 | |
58 | /* Fan speeds are LSB, MSB (2 bytes) */ | |
09770b26 GR |
59 | #define LM85_REG_FAN(nr) (0x28 + (nr) * 2) |
60 | #define LM85_REG_FAN_MIN(nr) (0x54 + (nr) * 2) | |
1da177e4 | 61 | |
09770b26 | 62 | #define LM85_REG_PWM(nr) (0x30 + (nr)) |
1da177e4 | 63 | |
09770b26 GR |
64 | #define LM85_REG_COMPANY 0x3e |
65 | #define LM85_REG_VERSTEP 0x3f | |
79b92f2b | 66 | |
09770b26 GR |
67 | #define ADT7468_REG_CFG5 0x7c |
68 | #define ADT7468_OFF64 (1 << 0) | |
69 | #define ADT7468_HFPWM (1 << 1) | |
70 | #define IS_ADT7468_OFF64(data) \ | |
79b92f2b | 71 | ((data)->type == adt7468 && !((data)->cfg5 & ADT7468_OFF64)) |
09770b26 | 72 | #define IS_ADT7468_HFPWM(data) \ |
f6c61cff | 73 | ((data)->type == adt7468 && !((data)->cfg5 & ADT7468_HFPWM)) |
79b92f2b | 74 | |
1da177e4 | 75 | /* These are the recognized values for the above regs */ |
09770b26 GR |
76 | #define LM85_COMPANY_NATIONAL 0x01 |
77 | #define LM85_COMPANY_ANALOG_DEV 0x41 | |
78 | #define LM85_COMPANY_SMSC 0x5c | |
09770b26 GR |
79 | #define LM85_VERSTEP_LM85C 0x60 |
80 | #define LM85_VERSTEP_LM85B 0x62 | |
81 | #define LM85_VERSTEP_LM96000_1 0x68 | |
82 | #define LM85_VERSTEP_LM96000_2 0x69 | |
83 | #define LM85_VERSTEP_ADM1027 0x60 | |
84 | #define LM85_VERSTEP_ADT7463 0x62 | |
85 | #define LM85_VERSTEP_ADT7463C 0x6A | |
86 | #define LM85_VERSTEP_ADT7468_1 0x71 | |
87 | #define LM85_VERSTEP_ADT7468_2 0x72 | |
88 | #define LM85_VERSTEP_EMC6D100_A0 0x60 | |
89 | #define LM85_VERSTEP_EMC6D100_A1 0x61 | |
90 | #define LM85_VERSTEP_EMC6D102 0x65 | |
91 | #define LM85_VERSTEP_EMC6D103_A0 0x68 | |
92 | #define LM85_VERSTEP_EMC6D103_A1 0x69 | |
93 | #define LM85_VERSTEP_EMC6D103S 0x6A /* Also known as EMC6D103:A2 */ | |
94 | ||
95 | #define LM85_REG_CONFIG 0x40 | |
96 | ||
97 | #define LM85_REG_ALARM1 0x41 | |
98 | #define LM85_REG_ALARM2 0x42 | |
99 | ||
100 | #define LM85_REG_VID 0x43 | |
1da177e4 LT |
101 | |
102 | /* Automated FAN control */ | |
09770b26 GR |
103 | #define LM85_REG_AFAN_CONFIG(nr) (0x5c + (nr)) |
104 | #define LM85_REG_AFAN_RANGE(nr) (0x5f + (nr)) | |
105 | #define LM85_REG_AFAN_SPIKE1 0x62 | |
106 | #define LM85_REG_AFAN_MINPWM(nr) (0x64 + (nr)) | |
107 | #define LM85_REG_AFAN_LIMIT(nr) (0x67 + (nr)) | |
108 | #define LM85_REG_AFAN_CRITICAL(nr) (0x6a + (nr)) | |
109 | #define LM85_REG_AFAN_HYST1 0x6d | |
110 | #define LM85_REG_AFAN_HYST2 0x6e | |
111 | ||
112 | #define ADM1027_REG_EXTEND_ADC1 0x76 | |
113 | #define ADM1027_REG_EXTEND_ADC2 0x77 | |
1da177e4 LT |
114 | |
115 | #define EMC6D100_REG_ALARM3 0x7d | |
116 | /* IN5, IN6 and IN7 */ | |
09770b26 GR |
117 | #define EMC6D100_REG_IN(nr) (0x70 + ((nr) - 5)) |
118 | #define EMC6D100_REG_IN_MIN(nr) (0x73 + ((nr) - 5) * 2) | |
119 | #define EMC6D100_REG_IN_MAX(nr) (0x74 + ((nr) - 5) * 2) | |
120 | #define EMC6D102_REG_EXTEND_ADC1 0x85 | |
121 | #define EMC6D102_REG_EXTEND_ADC2 0x86 | |
122 | #define EMC6D102_REG_EXTEND_ADC3 0x87 | |
123 | #define EMC6D102_REG_EXTEND_ADC4 0x88 | |
124 | ||
09770b26 GR |
125 | /* |
126 | * Conversions. Rounding and limit checking is only done on the TO_REG | |
127 | * variants. Note that you should be a bit careful with which arguments | |
128 | * these macros are called: arguments may be evaluated more than once. | |
1da177e4 LT |
129 | */ |
130 | ||
25985edc | 131 | /* IN are scaled according to built-in resistors */ |
e89e22b2 | 132 | static const int lm85_scaling[] = { /* .001 Volts */ |
1f44809a JD |
133 | 2500, 2250, 3300, 5000, 12000, |
134 | 3300, 1500, 1800 /*EMC6D100*/ | |
135 | }; | |
136 | #define SCALE(val, from, to) (((val) * (to) + ((from) / 2)) / (from)) | |
1da177e4 | 137 | |
1f44809a | 138 | #define INS_TO_REG(n, val) \ |
67b20034 GR |
139 | SCALE(clamp_val(val, 0, 255 * lm85_scaling[n] / 192), \ |
140 | lm85_scaling[n], 192) | |
1da177e4 | 141 | |
1f44809a | 142 | #define INSEXT_FROM_REG(n, val, ext) \ |
5a4d3ef3 | 143 | SCALE(((val) << 4) + (ext), 192 << 4, lm85_scaling[n]) |
1da177e4 | 144 | |
1f44809a | 145 | #define INS_FROM_REG(n, val) SCALE((val), 192, lm85_scaling[n]) |
1da177e4 LT |
146 | |
147 | /* FAN speed is measured using 90kHz clock */ | |
63f281a6 JD |
148 | static inline u16 FAN_TO_REG(unsigned long val) |
149 | { | |
150 | if (!val) | |
151 | return 0xffff; | |
2a844c14 | 152 | return clamp_val(5400000 / val, 1, 0xfffe); |
63f281a6 | 153 | } |
1f44809a JD |
154 | #define FAN_FROM_REG(val) ((val) == 0 ? -1 : (val) == 0xffff ? 0 : \ |
155 | 5400000 / (val)) | |
1da177e4 LT |
156 | |
157 | /* Temperature is reported in .001 degC increments */ | |
158 | #define TEMP_TO_REG(val) \ | |
3248c3b7 | 159 | DIV_ROUND_CLOSEST(clamp_val((val), -127000, 127000), 1000) |
1f44809a | 160 | #define TEMPEXT_FROM_REG(val, ext) \ |
5a4d3ef3 JD |
161 | SCALE(((val) << 4) + (ext), 16, 1000) |
162 | #define TEMP_FROM_REG(val) ((val) * 1000) | |
1da177e4 | 163 | |
2a844c14 | 164 | #define PWM_TO_REG(val) clamp_val(val, 0, 255) |
1da177e4 LT |
165 | #define PWM_FROM_REG(val) (val) |
166 | ||
167 | ||
09770b26 GR |
168 | /* |
169 | * ZONEs have the following parameters: | |
1da177e4 LT |
170 | * Limit (low) temp, 1. degC |
171 | * Hysteresis (below limit), 1. degC (0-15) | |
172 | * Range of speed control, .1 degC (2-80) | |
173 | * Critical (high) temp, 1. degC | |
174 | * | |
175 | * FAN PWMs have the following parameters: | |
176 | * Reference Zone, 1, 2, 3, etc. | |
177 | * Spinup time, .05 sec | |
178 | * PWM value at limit/low temp, 1 count | |
179 | * PWM Frequency, 1. Hz | |
180 | * PWM is Min or OFF below limit, flag | |
181 | * Invert PWM output, flag | |
182 | * | |
183 | * Some chips filter the temp, others the fan. | |
184 | * Filter constant (or disabled) .1 seconds | |
185 | */ | |
186 | ||
187 | /* These are the zone temperature range encodings in .001 degree C */ | |
e89e22b2 | 188 | static const int lm85_range_map[] = { |
1f44809a JD |
189 | 2000, 2500, 3300, 4000, 5000, 6600, 8000, 10000, |
190 | 13300, 16000, 20000, 26600, 32000, 40000, 53300, 80000 | |
191 | }; | |
192 | ||
3248c3b7 | 193 | static int RANGE_TO_REG(long range) |
1da177e4 | 194 | { |
0f3721c5 | 195 | return find_closest(range, lm85_range_map, ARRAY_SIZE(lm85_range_map)); |
1da177e4 | 196 | } |
1f44809a | 197 | #define RANGE_FROM_REG(val) lm85_range_map[(val) & 0x0f] |
1da177e4 | 198 | |
1da177e4 | 199 | /* These are the PWM frequency encodings */ |
34e7dc6c | 200 | static const int lm85_freq_map[8] = { /* 1 Hz */ |
8a0795d9 JD |
201 | 10, 15, 23, 30, 38, 47, 61, 94 |
202 | }; | |
203 | static const int adm1027_freq_map[8] = { /* 1 Hz */ | |
204 | 11, 15, 22, 29, 35, 44, 59, 88 | |
1f44809a | 205 | }; |
0f3721c5 | 206 | #define FREQ_MAP_LEN 8 |
1f44809a | 207 | |
0f3721c5 BG |
208 | static int FREQ_TO_REG(const int *map, |
209 | unsigned int map_size, unsigned long freq) | |
1da177e4 | 210 | { |
0f3721c5 | 211 | return find_closest(freq, map, map_size); |
1da177e4 | 212 | } |
8a0795d9 JD |
213 | |
214 | static int FREQ_FROM_REG(const int *map, u8 reg) | |
215 | { | |
216 | return map[reg & 0x07]; | |
217 | } | |
1da177e4 | 218 | |
09770b26 GR |
219 | /* |
220 | * Since we can't use strings, I'm abusing these numbers | |
1da177e4 LT |
221 | * to stand in for the following meanings: |
222 | * 1 -- PWM responds to Zone 1 | |
223 | * 2 -- PWM responds to Zone 2 | |
224 | * 3 -- PWM responds to Zone 3 | |
225 | * 23 -- PWM responds to the higher temp of Zone 2 or 3 | |
226 | * 123 -- PWM responds to highest of Zone 1, 2, or 3 | |
227 | * 0 -- PWM is always at 0% (ie, off) | |
228 | * -1 -- PWM is always at 100% | |
229 | * -2 -- PWM responds to manual control | |
230 | */ | |
231 | ||
e89e22b2 JD |
232 | static const int lm85_zone_map[] = { 1, 2, 3, -1, 0, 23, 123, -2 }; |
233 | #define ZONE_FROM_REG(val) lm85_zone_map[(val) >> 5] | |
1da177e4 | 234 | |
1f44809a | 235 | static int ZONE_TO_REG(int zone) |
1da177e4 LT |
236 | { |
237 | int i; | |
238 | ||
1f44809a JD |
239 | for (i = 0; i <= 7; ++i) |
240 | if (zone == lm85_zone_map[i]) | |
241 | break; | |
242 | if (i > 7) /* Not found. */ | |
1da177e4 | 243 | i = 3; /* Always 100% */ |
e89e22b2 | 244 | return i << 5; |
1da177e4 LT |
245 | } |
246 | ||
2a844c14 | 247 | #define HYST_TO_REG(val) clamp_val(((val) + 500) / 1000, 0, 15) |
1f44809a | 248 | #define HYST_FROM_REG(val) ((val) * 1000) |
1da177e4 | 249 | |
09770b26 GR |
250 | /* |
251 | * Chip sampling rates | |
1da177e4 LT |
252 | * |
253 | * Some sensors are not updated more frequently than once per second | |
254 | * so it doesn't make sense to read them more often than that. | |
255 | * We cache the results and return the saved data if the driver | |
256 | * is called again before a second has elapsed. | |
257 | * | |
258 | * Also, there is significant configuration data for this chip | |
259 | * given the automatic PWM fan control that is possible. There | |
260 | * are about 47 bytes of config data to only 22 bytes of actual | |
261 | * readings. So, we keep the config data up to date in the cache | |
262 | * when it is written and only sample it once every 1 *minute* | |
263 | */ | |
264 | #define LM85_DATA_INTERVAL (HZ + HZ / 2) | |
265 | #define LM85_CONFIG_INTERVAL (1 * 60 * HZ) | |
266 | ||
09770b26 GR |
267 | /* |
268 | * LM85 can automatically adjust fan speeds based on temperature | |
1da177e4 LT |
269 | * This structure encapsulates an entire Zone config. There are |
270 | * three zones (one for each temperature input) on the lm85 | |
271 | */ | |
272 | struct lm85_zone { | |
273 | s8 limit; /* Low temp limit */ | |
274 | u8 hyst; /* Low limit hysteresis. (0-15) */ | |
275 | u8 range; /* Temp range, encoded */ | |
276 | s8 critical; /* "All fans ON" temp limit */ | |
09770b26 GR |
277 | u8 max_desired; /* |
278 | * Actual "max" temperature specified. Preserved | |
1da177e4 LT |
279 | * to prevent "drift" as other autofan control |
280 | * values change. | |
281 | */ | |
282 | }; | |
283 | ||
284 | struct lm85_autofan { | |
285 | u8 config; /* Register value */ | |
1da177e4 LT |
286 | u8 min_pwm; /* Minimum PWM value, encoded */ |
287 | u8 min_off; /* Min PWM or OFF below "limit", flag */ | |
288 | }; | |
289 | ||
09770b26 GR |
290 | /* |
291 | * For each registered chip, we need to keep some data in memory. | |
292 | * The structure is dynamically allocated. | |
293 | */ | |
1da177e4 | 294 | struct lm85_data { |
746f6884 AL |
295 | struct i2c_client *client; |
296 | const struct attribute_group *groups[6]; | |
8a0795d9 | 297 | const int *freq_map; |
1da177e4 LT |
298 | enum chips type; |
299 | ||
de248805 GR |
300 | bool has_vid5; /* true if VID5 is configured for ADT7463 or ADT7468 */ |
301 | ||
9a61bf63 | 302 | struct mutex update_lock; |
1da177e4 LT |
303 | int valid; /* !=0 if following fields are valid */ |
304 | unsigned long last_reading; /* In jiffies */ | |
305 | unsigned long last_config; /* In jiffies */ | |
306 | ||
307 | u8 in[8]; /* Register value */ | |
308 | u8 in_max[8]; /* Register value */ | |
309 | u8 in_min[8]; /* Register value */ | |
310 | s8 temp[3]; /* Register value */ | |
311 | s8 temp_min[3]; /* Register value */ | |
312 | s8 temp_max[3]; /* Register value */ | |
1da177e4 LT |
313 | u16 fan[4]; /* Register value */ |
314 | u16 fan_min[4]; /* Register value */ | |
315 | u8 pwm[3]; /* Register value */ | |
34e7dc6c | 316 | u8 pwm_freq[3]; /* Register encoding */ |
1da177e4 LT |
317 | u8 temp_ext[3]; /* Decoded values */ |
318 | u8 in_ext[8]; /* Decoded values */ | |
1da177e4 LT |
319 | u8 vid; /* Register value */ |
320 | u8 vrm; /* VRM version */ | |
1da177e4 | 321 | u32 alarms; /* Register encoding, combined */ |
79b92f2b | 322 | u8 cfg5; /* Config Register 5 on ADT7468 */ |
1da177e4 LT |
323 | struct lm85_autofan autofan[3]; |
324 | struct lm85_zone zone[3]; | |
325 | }; | |
326 | ||
6fd5dd58 AL |
327 | static int lm85_read_value(struct i2c_client *client, u8 reg) |
328 | { | |
329 | int res; | |
1da177e4 | 330 | |
6fd5dd58 AL |
331 | /* What size location is it? */ |
332 | switch (reg) { | |
333 | case LM85_REG_FAN(0): /* Read WORD data */ | |
334 | case LM85_REG_FAN(1): | |
335 | case LM85_REG_FAN(2): | |
336 | case LM85_REG_FAN(3): | |
337 | case LM85_REG_FAN_MIN(0): | |
338 | case LM85_REG_FAN_MIN(1): | |
339 | case LM85_REG_FAN_MIN(2): | |
340 | case LM85_REG_FAN_MIN(3): | |
341 | case LM85_REG_ALARM1: /* Read both bytes at once */ | |
342 | res = i2c_smbus_read_byte_data(client, reg) & 0xff; | |
343 | res |= i2c_smbus_read_byte_data(client, reg + 1) << 8; | |
344 | break; | |
345 | default: /* Read BYTE data */ | |
346 | res = i2c_smbus_read_byte_data(client, reg); | |
347 | break; | |
348 | } | |
1da177e4 | 349 | |
6fd5dd58 AL |
350 | return res; |
351 | } | |
1da177e4 | 352 | |
6fd5dd58 AL |
353 | static void lm85_write_value(struct i2c_client *client, u8 reg, int value) |
354 | { | |
355 | switch (reg) { | |
356 | case LM85_REG_FAN(0): /* Write WORD data */ | |
357 | case LM85_REG_FAN(1): | |
358 | case LM85_REG_FAN(2): | |
359 | case LM85_REG_FAN(3): | |
360 | case LM85_REG_FAN_MIN(0): | |
361 | case LM85_REG_FAN_MIN(1): | |
362 | case LM85_REG_FAN_MIN(2): | |
363 | case LM85_REG_FAN_MIN(3): | |
364 | /* NOTE: ALARM is read only, so not included here */ | |
365 | i2c_smbus_write_byte_data(client, reg, value & 0xff); | |
366 | i2c_smbus_write_byte_data(client, reg + 1, value >> 8); | |
367 | break; | |
368 | default: /* Write BYTE data */ | |
369 | i2c_smbus_write_byte_data(client, reg, value); | |
370 | break; | |
371 | } | |
372 | } | |
67712d01 | 373 | |
6fd5dd58 AL |
374 | static struct lm85_data *lm85_update_device(struct device *dev) |
375 | { | |
746f6884 AL |
376 | struct lm85_data *data = dev_get_drvdata(dev); |
377 | struct i2c_client *client = data->client; | |
6fd5dd58 AL |
378 | int i; |
379 | ||
380 | mutex_lock(&data->update_lock); | |
381 | ||
382 | if (!data->valid || | |
383 | time_after(jiffies, data->last_reading + LM85_DATA_INTERVAL)) { | |
384 | /* Things that change quickly */ | |
385 | dev_dbg(&client->dev, "Reading sensor values\n"); | |
386 | ||
387 | /* | |
388 | * Have to read extended bits first to "freeze" the | |
389 | * more significant bits that are read later. | |
390 | * There are 2 additional resolution bits per channel and we | |
391 | * have room for 4, so we shift them to the left. | |
392 | */ | |
393 | if (data->type == adm1027 || data->type == adt7463 || | |
394 | data->type == adt7468) { | |
395 | int ext1 = lm85_read_value(client, | |
396 | ADM1027_REG_EXTEND_ADC1); | |
397 | int ext2 = lm85_read_value(client, | |
398 | ADM1027_REG_EXTEND_ADC2); | |
399 | int val = (ext1 << 8) + ext2; | |
400 | ||
401 | for (i = 0; i <= 4; i++) | |
402 | data->in_ext[i] = | |
403 | ((val >> (i * 2)) & 0x03) << 2; | |
404 | ||
405 | for (i = 0; i <= 2; i++) | |
406 | data->temp_ext[i] = | |
407 | (val >> ((i + 4) * 2)) & 0x0c; | |
408 | } | |
409 | ||
410 | data->vid = lm85_read_value(client, LM85_REG_VID); | |
411 | ||
412 | for (i = 0; i <= 3; ++i) { | |
413 | data->in[i] = | |
414 | lm85_read_value(client, LM85_REG_IN(i)); | |
415 | data->fan[i] = | |
416 | lm85_read_value(client, LM85_REG_FAN(i)); | |
417 | } | |
418 | ||
419 | if (!data->has_vid5) | |
420 | data->in[4] = lm85_read_value(client, LM85_REG_IN(4)); | |
421 | ||
422 | if (data->type == adt7468) | |
423 | data->cfg5 = lm85_read_value(client, ADT7468_REG_CFG5); | |
424 | ||
425 | for (i = 0; i <= 2; ++i) { | |
426 | data->temp[i] = | |
427 | lm85_read_value(client, LM85_REG_TEMP(i)); | |
428 | data->pwm[i] = | |
429 | lm85_read_value(client, LM85_REG_PWM(i)); | |
1da177e4 | 430 | |
6fd5dd58 AL |
431 | if (IS_ADT7468_OFF64(data)) |
432 | data->temp[i] -= 64; | |
433 | } | |
434 | ||
435 | data->alarms = lm85_read_value(client, LM85_REG_ALARM1); | |
436 | ||
437 | if (data->type == emc6d100) { | |
438 | /* Three more voltage sensors */ | |
439 | for (i = 5; i <= 7; ++i) { | |
440 | data->in[i] = lm85_read_value(client, | |
441 | EMC6D100_REG_IN(i)); | |
442 | } | |
443 | /* More alarm bits */ | |
444 | data->alarms |= lm85_read_value(client, | |
445 | EMC6D100_REG_ALARM3) << 16; | |
446 | } else if (data->type == emc6d102 || data->type == emc6d103 || | |
447 | data->type == emc6d103s) { | |
448 | /* | |
449 | * Have to read LSB bits after the MSB ones because | |
450 | * the reading of the MSB bits has frozen the | |
451 | * LSBs (backward from the ADM1027). | |
452 | */ | |
453 | int ext1 = lm85_read_value(client, | |
454 | EMC6D102_REG_EXTEND_ADC1); | |
455 | int ext2 = lm85_read_value(client, | |
456 | EMC6D102_REG_EXTEND_ADC2); | |
457 | int ext3 = lm85_read_value(client, | |
458 | EMC6D102_REG_EXTEND_ADC3); | |
459 | int ext4 = lm85_read_value(client, | |
460 | EMC6D102_REG_EXTEND_ADC4); | |
461 | data->in_ext[0] = ext3 & 0x0f; | |
462 | data->in_ext[1] = ext4 & 0x0f; | |
463 | data->in_ext[2] = ext4 >> 4; | |
464 | data->in_ext[3] = ext3 >> 4; | |
465 | data->in_ext[4] = ext2 >> 4; | |
466 | ||
467 | data->temp_ext[0] = ext1 & 0x0f; | |
468 | data->temp_ext[1] = ext2 & 0x0f; | |
469 | data->temp_ext[2] = ext1 >> 4; | |
470 | } | |
471 | ||
472 | data->last_reading = jiffies; | |
473 | } /* last_reading */ | |
474 | ||
475 | if (!data->valid || | |
476 | time_after(jiffies, data->last_config + LM85_CONFIG_INTERVAL)) { | |
477 | /* Things that don't change often */ | |
478 | dev_dbg(&client->dev, "Reading config values\n"); | |
479 | ||
480 | for (i = 0; i <= 3; ++i) { | |
481 | data->in_min[i] = | |
482 | lm85_read_value(client, LM85_REG_IN_MIN(i)); | |
483 | data->in_max[i] = | |
484 | lm85_read_value(client, LM85_REG_IN_MAX(i)); | |
485 | data->fan_min[i] = | |
486 | lm85_read_value(client, LM85_REG_FAN_MIN(i)); | |
487 | } | |
488 | ||
489 | if (!data->has_vid5) { | |
490 | data->in_min[4] = lm85_read_value(client, | |
491 | LM85_REG_IN_MIN(4)); | |
492 | data->in_max[4] = lm85_read_value(client, | |
493 | LM85_REG_IN_MAX(4)); | |
494 | } | |
495 | ||
496 | if (data->type == emc6d100) { | |
497 | for (i = 5; i <= 7; ++i) { | |
498 | data->in_min[i] = lm85_read_value(client, | |
499 | EMC6D100_REG_IN_MIN(i)); | |
500 | data->in_max[i] = lm85_read_value(client, | |
501 | EMC6D100_REG_IN_MAX(i)); | |
502 | } | |
503 | } | |
504 | ||
505 | for (i = 0; i <= 2; ++i) { | |
506 | int val; | |
507 | ||
508 | data->temp_min[i] = | |
509 | lm85_read_value(client, LM85_REG_TEMP_MIN(i)); | |
510 | data->temp_max[i] = | |
511 | lm85_read_value(client, LM85_REG_TEMP_MAX(i)); | |
512 | ||
513 | data->autofan[i].config = | |
514 | lm85_read_value(client, LM85_REG_AFAN_CONFIG(i)); | |
515 | val = lm85_read_value(client, LM85_REG_AFAN_RANGE(i)); | |
516 | data->pwm_freq[i] = val & 0x07; | |
517 | data->zone[i].range = val >> 4; | |
518 | data->autofan[i].min_pwm = | |
519 | lm85_read_value(client, LM85_REG_AFAN_MINPWM(i)); | |
520 | data->zone[i].limit = | |
521 | lm85_read_value(client, LM85_REG_AFAN_LIMIT(i)); | |
522 | data->zone[i].critical = | |
523 | lm85_read_value(client, LM85_REG_AFAN_CRITICAL(i)); | |
524 | ||
525 | if (IS_ADT7468_OFF64(data)) { | |
526 | data->temp_min[i] -= 64; | |
527 | data->temp_max[i] -= 64; | |
528 | data->zone[i].limit -= 64; | |
529 | data->zone[i].critical -= 64; | |
530 | } | |
531 | } | |
532 | ||
533 | if (data->type != emc6d103s) { | |
534 | i = lm85_read_value(client, LM85_REG_AFAN_SPIKE1); | |
535 | data->autofan[0].min_off = (i & 0x20) != 0; | |
536 | data->autofan[1].min_off = (i & 0x40) != 0; | |
537 | data->autofan[2].min_off = (i & 0x80) != 0; | |
538 | ||
539 | i = lm85_read_value(client, LM85_REG_AFAN_HYST1); | |
540 | data->zone[0].hyst = i >> 4; | |
541 | data->zone[1].hyst = i & 0x0f; | |
542 | ||
543 | i = lm85_read_value(client, LM85_REG_AFAN_HYST2); | |
544 | data->zone[2].hyst = i >> 4; | |
545 | } | |
546 | ||
547 | data->last_config = jiffies; | |
548 | } /* last_config */ | |
549 | ||
550 | data->valid = 1; | |
551 | ||
552 | mutex_unlock(&data->update_lock); | |
553 | ||
554 | return data; | |
555 | } | |
1da177e4 LT |
556 | |
557 | /* 4 Fans */ | |
b353a487 JD |
558 | static ssize_t show_fan(struct device *dev, struct device_attribute *attr, |
559 | char *buf) | |
1da177e4 | 560 | { |
b353a487 | 561 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 562 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 563 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr])); |
1da177e4 | 564 | } |
b353a487 JD |
565 | |
566 | static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr, | |
567 | char *buf) | |
1da177e4 | 568 | { |
b353a487 | 569 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 570 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 571 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr])); |
1da177e4 | 572 | } |
b353a487 JD |
573 | |
574 | static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, | |
575 | const char *buf, size_t count) | |
1da177e4 | 576 | { |
b353a487 | 577 | int nr = to_sensor_dev_attr(attr)->index; |
746f6884 AL |
578 | struct lm85_data *data = dev_get_drvdata(dev); |
579 | struct i2c_client *client = data->client; | |
09770b26 GR |
580 | unsigned long val; |
581 | int err; | |
582 | ||
583 | err = kstrtoul(buf, 10, &val); | |
584 | if (err) | |
585 | return err; | |
1da177e4 | 586 | |
9a61bf63 | 587 | mutex_lock(&data->update_lock); |
1da177e4 LT |
588 | data->fan_min[nr] = FAN_TO_REG(val); |
589 | lm85_write_value(client, LM85_REG_FAN_MIN(nr), data->fan_min[nr]); | |
9a61bf63 | 590 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
591 | return count; |
592 | } | |
593 | ||
594 | #define show_fan_offset(offset) \ | |
b353a487 JD |
595 | static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \ |
596 | show_fan, NULL, offset - 1); \ | |
597 | static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ | |
598 | show_fan_min, set_fan_min, offset - 1) | |
1da177e4 LT |
599 | |
600 | show_fan_offset(1); | |
601 | show_fan_offset(2); | |
602 | show_fan_offset(3); | |
603 | show_fan_offset(4); | |
604 | ||
605 | /* vid, vrm, alarms */ | |
606 | ||
1f44809a JD |
607 | static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr, |
608 | char *buf) | |
1da177e4 LT |
609 | { |
610 | struct lm85_data *data = lm85_update_device(dev); | |
9c516ef4 JD |
611 | int vid; |
612 | ||
de248805 | 613 | if (data->has_vid5) { |
9c516ef4 JD |
614 | /* 6-pin VID (VRM 10) */ |
615 | vid = vid_from_reg(data->vid & 0x3f, data->vrm); | |
616 | } else { | |
617 | /* 5-pin VID (VRM 9) */ | |
618 | vid = vid_from_reg(data->vid & 0x1f, data->vrm); | |
619 | } | |
620 | ||
621 | return sprintf(buf, "%d\n", vid); | |
1da177e4 LT |
622 | } |
623 | ||
624 | static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL); | |
625 | ||
1f44809a JD |
626 | static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr, |
627 | char *buf) | |
1da177e4 | 628 | { |
90d6619a | 629 | struct lm85_data *data = dev_get_drvdata(dev); |
1da177e4 LT |
630 | return sprintf(buf, "%ld\n", (long) data->vrm); |
631 | } | |
632 | ||
1f44809a JD |
633 | static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr, |
634 | const char *buf, size_t count) | |
1da177e4 | 635 | { |
8f74efe8 | 636 | struct lm85_data *data = dev_get_drvdata(dev); |
09770b26 GR |
637 | unsigned long val; |
638 | int err; | |
639 | ||
640 | err = kstrtoul(buf, 10, &val); | |
641 | if (err) | |
642 | return err; | |
643 | ||
3248c3b7 GR |
644 | if (val > 255) |
645 | return -EINVAL; | |
646 | ||
09770b26 | 647 | data->vrm = val; |
1da177e4 LT |
648 | return count; |
649 | } | |
650 | ||
651 | static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg); | |
652 | ||
1f44809a JD |
653 | static ssize_t show_alarms_reg(struct device *dev, struct device_attribute |
654 | *attr, char *buf) | |
1da177e4 LT |
655 | { |
656 | struct lm85_data *data = lm85_update_device(dev); | |
68188ba7 | 657 | return sprintf(buf, "%u\n", data->alarms); |
1da177e4 LT |
658 | } |
659 | ||
660 | static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL); | |
661 | ||
bf76e9d3 JD |
662 | static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, |
663 | char *buf) | |
664 | { | |
665 | int nr = to_sensor_dev_attr(attr)->index; | |
666 | struct lm85_data *data = lm85_update_device(dev); | |
667 | return sprintf(buf, "%u\n", (data->alarms >> nr) & 1); | |
668 | } | |
669 | ||
670 | static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0); | |
671 | static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1); | |
672 | static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2); | |
673 | static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3); | |
674 | static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8); | |
675 | static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 18); | |
676 | static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 16); | |
677 | static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 17); | |
678 | static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4); | |
679 | static SENSOR_DEVICE_ATTR(temp1_fault, S_IRUGO, show_alarm, NULL, 14); | |
680 | static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5); | |
681 | static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 6); | |
682 | static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_alarm, NULL, 15); | |
683 | static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 10); | |
684 | static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 11); | |
685 | static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 12); | |
686 | static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 13); | |
687 | ||
1da177e4 LT |
688 | /* pwm */ |
689 | ||
b353a487 JD |
690 | static ssize_t show_pwm(struct device *dev, struct device_attribute *attr, |
691 | char *buf) | |
1da177e4 | 692 | { |
b353a487 | 693 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 694 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 695 | return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm[nr])); |
1da177e4 | 696 | } |
b353a487 JD |
697 | |
698 | static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, | |
699 | const char *buf, size_t count) | |
1da177e4 | 700 | { |
b353a487 | 701 | int nr = to_sensor_dev_attr(attr)->index; |
746f6884 AL |
702 | struct lm85_data *data = dev_get_drvdata(dev); |
703 | struct i2c_client *client = data->client; | |
09770b26 GR |
704 | unsigned long val; |
705 | int err; | |
706 | ||
707 | err = kstrtoul(buf, 10, &val); | |
708 | if (err) | |
709 | return err; | |
1da177e4 | 710 | |
9a61bf63 | 711 | mutex_lock(&data->update_lock); |
1da177e4 LT |
712 | data->pwm[nr] = PWM_TO_REG(val); |
713 | lm85_write_value(client, LM85_REG_PWM(nr), data->pwm[nr]); | |
9a61bf63 | 714 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
715 | return count; |
716 | } | |
b353a487 JD |
717 | |
718 | static ssize_t show_pwm_enable(struct device *dev, struct device_attribute | |
719 | *attr, char *buf) | |
1da177e4 | 720 | { |
b353a487 | 721 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 722 | struct lm85_data *data = lm85_update_device(dev); |
4b4df95d | 723 | int pwm_zone, enable; |
1da177e4 LT |
724 | |
725 | pwm_zone = ZONE_FROM_REG(data->autofan[nr].config); | |
4b4df95d JD |
726 | switch (pwm_zone) { |
727 | case -1: /* PWM is always at 100% */ | |
728 | enable = 0; | |
729 | break; | |
730 | case 0: /* PWM is always at 0% */ | |
731 | case -2: /* PWM responds to manual control */ | |
732 | enable = 1; | |
733 | break; | |
734 | default: /* PWM in automatic mode */ | |
735 | enable = 2; | |
736 | } | |
737 | return sprintf(buf, "%d\n", enable); | |
1da177e4 LT |
738 | } |
739 | ||
455f791e JD |
740 | static ssize_t set_pwm_enable(struct device *dev, struct device_attribute |
741 | *attr, const char *buf, size_t count) | |
742 | { | |
743 | int nr = to_sensor_dev_attr(attr)->index; | |
746f6884 AL |
744 | struct lm85_data *data = dev_get_drvdata(dev); |
745 | struct i2c_client *client = data->client; | |
455f791e | 746 | u8 config; |
09770b26 GR |
747 | unsigned long val; |
748 | int err; | |
749 | ||
750 | err = kstrtoul(buf, 10, &val); | |
751 | if (err) | |
752 | return err; | |
455f791e JD |
753 | |
754 | switch (val) { | |
755 | case 0: | |
756 | config = 3; | |
757 | break; | |
758 | case 1: | |
759 | config = 7; | |
760 | break; | |
761 | case 2: | |
09770b26 GR |
762 | /* |
763 | * Here we have to choose arbitrarily one of the 5 possible | |
764 | * configurations; I go for the safest | |
765 | */ | |
455f791e JD |
766 | config = 6; |
767 | break; | |
768 | default: | |
769 | return -EINVAL; | |
770 | } | |
771 | ||
772 | mutex_lock(&data->update_lock); | |
773 | data->autofan[nr].config = lm85_read_value(client, | |
774 | LM85_REG_AFAN_CONFIG(nr)); | |
775 | data->autofan[nr].config = (data->autofan[nr].config & ~0xe0) | |
776 | | (config << 5); | |
777 | lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr), | |
778 | data->autofan[nr].config); | |
779 | mutex_unlock(&data->update_lock); | |
780 | return count; | |
781 | } | |
782 | ||
34e7dc6c JD |
783 | static ssize_t show_pwm_freq(struct device *dev, |
784 | struct device_attribute *attr, char *buf) | |
785 | { | |
786 | int nr = to_sensor_dev_attr(attr)->index; | |
787 | struct lm85_data *data = lm85_update_device(dev); | |
f6c61cff JD |
788 | int freq; |
789 | ||
790 | if (IS_ADT7468_HFPWM(data)) | |
791 | freq = 22500; | |
792 | else | |
793 | freq = FREQ_FROM_REG(data->freq_map, data->pwm_freq[nr]); | |
794 | ||
795 | return sprintf(buf, "%d\n", freq); | |
34e7dc6c JD |
796 | } |
797 | ||
798 | static ssize_t set_pwm_freq(struct device *dev, | |
799 | struct device_attribute *attr, const char *buf, size_t count) | |
800 | { | |
801 | int nr = to_sensor_dev_attr(attr)->index; | |
746f6884 AL |
802 | struct lm85_data *data = dev_get_drvdata(dev); |
803 | struct i2c_client *client = data->client; | |
09770b26 GR |
804 | unsigned long val; |
805 | int err; | |
806 | ||
807 | err = kstrtoul(buf, 10, &val); | |
808 | if (err) | |
809 | return err; | |
34e7dc6c JD |
810 | |
811 | mutex_lock(&data->update_lock); | |
09770b26 GR |
812 | /* |
813 | * The ADT7468 has a special high-frequency PWM output mode, | |
f6c61cff | 814 | * where all PWM outputs are driven by a 22.5 kHz clock. |
09770b26 GR |
815 | * This might confuse the user, but there's not much we can do. |
816 | */ | |
f6c61cff JD |
817 | if (data->type == adt7468 && val >= 11300) { /* High freq. mode */ |
818 | data->cfg5 &= ~ADT7468_HFPWM; | |
819 | lm85_write_value(client, ADT7468_REG_CFG5, data->cfg5); | |
820 | } else { /* Low freq. mode */ | |
0f3721c5 BG |
821 | data->pwm_freq[nr] = FREQ_TO_REG(data->freq_map, |
822 | FREQ_MAP_LEN, val); | |
f6c61cff JD |
823 | lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), |
824 | (data->zone[nr].range << 4) | |
825 | | data->pwm_freq[nr]); | |
826 | if (data->type == adt7468) { | |
827 | data->cfg5 |= ADT7468_HFPWM; | |
828 | lm85_write_value(client, ADT7468_REG_CFG5, data->cfg5); | |
829 | } | |
830 | } | |
34e7dc6c JD |
831 | mutex_unlock(&data->update_lock); |
832 | return count; | |
833 | } | |
834 | ||
1da177e4 | 835 | #define show_pwm_reg(offset) \ |
b353a487 JD |
836 | static SENSOR_DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \ |
837 | show_pwm, set_pwm, offset - 1); \ | |
455f791e | 838 | static SENSOR_DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR, \ |
34e7dc6c JD |
839 | show_pwm_enable, set_pwm_enable, offset - 1); \ |
840 | static SENSOR_DEVICE_ATTR(pwm##offset##_freq, S_IRUGO | S_IWUSR, \ | |
841 | show_pwm_freq, set_pwm_freq, offset - 1) | |
1da177e4 LT |
842 | |
843 | show_pwm_reg(1); | |
844 | show_pwm_reg(2); | |
845 | show_pwm_reg(3); | |
846 | ||
847 | /* Voltages */ | |
848 | ||
b353a487 JD |
849 | static ssize_t show_in(struct device *dev, struct device_attribute *attr, |
850 | char *buf) | |
1da177e4 | 851 | { |
b353a487 | 852 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 853 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a JD |
854 | return sprintf(buf, "%d\n", INSEXT_FROM_REG(nr, data->in[nr], |
855 | data->in_ext[nr])); | |
1da177e4 | 856 | } |
b353a487 | 857 | |
1f44809a | 858 | static ssize_t show_in_min(struct device *dev, struct device_attribute *attr, |
b353a487 | 859 | char *buf) |
1da177e4 | 860 | { |
b353a487 | 861 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 862 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 863 | return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_min[nr])); |
1da177e4 | 864 | } |
b353a487 JD |
865 | |
866 | static ssize_t set_in_min(struct device *dev, struct device_attribute *attr, | |
867 | const char *buf, size_t count) | |
1da177e4 | 868 | { |
b353a487 | 869 | int nr = to_sensor_dev_attr(attr)->index; |
746f6884 AL |
870 | struct lm85_data *data = dev_get_drvdata(dev); |
871 | struct i2c_client *client = data->client; | |
09770b26 GR |
872 | long val; |
873 | int err; | |
874 | ||
875 | err = kstrtol(buf, 10, &val); | |
876 | if (err) | |
877 | return err; | |
1da177e4 | 878 | |
9a61bf63 | 879 | mutex_lock(&data->update_lock); |
1da177e4 LT |
880 | data->in_min[nr] = INS_TO_REG(nr, val); |
881 | lm85_write_value(client, LM85_REG_IN_MIN(nr), data->in_min[nr]); | |
9a61bf63 | 882 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
883 | return count; |
884 | } | |
b353a487 JD |
885 | |
886 | static ssize_t show_in_max(struct device *dev, struct device_attribute *attr, | |
887 | char *buf) | |
1da177e4 | 888 | { |
b353a487 | 889 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 890 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 891 | return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_max[nr])); |
1da177e4 | 892 | } |
b353a487 JD |
893 | |
894 | static ssize_t set_in_max(struct device *dev, struct device_attribute *attr, | |
895 | const char *buf, size_t count) | |
1da177e4 | 896 | { |
b353a487 | 897 | int nr = to_sensor_dev_attr(attr)->index; |
746f6884 AL |
898 | struct lm85_data *data = dev_get_drvdata(dev); |
899 | struct i2c_client *client = data->client; | |
09770b26 GR |
900 | long val; |
901 | int err; | |
902 | ||
903 | err = kstrtol(buf, 10, &val); | |
904 | if (err) | |
905 | return err; | |
1da177e4 | 906 | |
9a61bf63 | 907 | mutex_lock(&data->update_lock); |
1da177e4 LT |
908 | data->in_max[nr] = INS_TO_REG(nr, val); |
909 | lm85_write_value(client, LM85_REG_IN_MAX(nr), data->in_max[nr]); | |
9a61bf63 | 910 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
911 | return count; |
912 | } | |
b353a487 | 913 | |
1da177e4 | 914 | #define show_in_reg(offset) \ |
b353a487 JD |
915 | static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \ |
916 | show_in, NULL, offset); \ | |
917 | static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \ | |
918 | show_in_min, set_in_min, offset); \ | |
919 | static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \ | |
920 | show_in_max, set_in_max, offset) | |
1da177e4 LT |
921 | |
922 | show_in_reg(0); | |
923 | show_in_reg(1); | |
924 | show_in_reg(2); | |
925 | show_in_reg(3); | |
926 | show_in_reg(4); | |
6b9aad2d JD |
927 | show_in_reg(5); |
928 | show_in_reg(6); | |
929 | show_in_reg(7); | |
1da177e4 LT |
930 | |
931 | /* Temps */ | |
932 | ||
b353a487 JD |
933 | static ssize_t show_temp(struct device *dev, struct device_attribute *attr, |
934 | char *buf) | |
1da177e4 | 935 | { |
b353a487 | 936 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 937 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a JD |
938 | return sprintf(buf, "%d\n", TEMPEXT_FROM_REG(data->temp[nr], |
939 | data->temp_ext[nr])); | |
1da177e4 | 940 | } |
b353a487 JD |
941 | |
942 | static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr, | |
943 | char *buf) | |
1da177e4 | 944 | { |
b353a487 | 945 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 946 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 947 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[nr])); |
1da177e4 | 948 | } |
b353a487 JD |
949 | |
950 | static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr, | |
951 | const char *buf, size_t count) | |
1da177e4 | 952 | { |
b353a487 | 953 | int nr = to_sensor_dev_attr(attr)->index; |
746f6884 AL |
954 | struct lm85_data *data = dev_get_drvdata(dev); |
955 | struct i2c_client *client = data->client; | |
09770b26 GR |
956 | long val; |
957 | int err; | |
958 | ||
959 | err = kstrtol(buf, 10, &val); | |
960 | if (err) | |
961 | return err; | |
1da177e4 | 962 | |
79b92f2b DW |
963 | if (IS_ADT7468_OFF64(data)) |
964 | val += 64; | |
965 | ||
9a61bf63 | 966 | mutex_lock(&data->update_lock); |
1da177e4 LT |
967 | data->temp_min[nr] = TEMP_TO_REG(val); |
968 | lm85_write_value(client, LM85_REG_TEMP_MIN(nr), data->temp_min[nr]); | |
9a61bf63 | 969 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
970 | return count; |
971 | } | |
b353a487 JD |
972 | |
973 | static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr, | |
974 | char *buf) | |
1da177e4 | 975 | { |
b353a487 | 976 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 977 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 978 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[nr])); |
1da177e4 | 979 | } |
b353a487 JD |
980 | |
981 | static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, | |
982 | const char *buf, size_t count) | |
1da177e4 | 983 | { |
b353a487 | 984 | int nr = to_sensor_dev_attr(attr)->index; |
746f6884 AL |
985 | struct lm85_data *data = dev_get_drvdata(dev); |
986 | struct i2c_client *client = data->client; | |
09770b26 GR |
987 | long val; |
988 | int err; | |
989 | ||
990 | err = kstrtol(buf, 10, &val); | |
991 | if (err) | |
992 | return err; | |
1da177e4 | 993 | |
79b92f2b DW |
994 | if (IS_ADT7468_OFF64(data)) |
995 | val += 64; | |
996 | ||
9a61bf63 | 997 | mutex_lock(&data->update_lock); |
1da177e4 LT |
998 | data->temp_max[nr] = TEMP_TO_REG(val); |
999 | lm85_write_value(client, LM85_REG_TEMP_MAX(nr), data->temp_max[nr]); | |
9a61bf63 | 1000 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
1001 | return count; |
1002 | } | |
b353a487 | 1003 | |
1da177e4 | 1004 | #define show_temp_reg(offset) \ |
b353a487 JD |
1005 | static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \ |
1006 | show_temp, NULL, offset - 1); \ | |
1007 | static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \ | |
1008 | show_temp_min, set_temp_min, offset - 1); \ | |
1009 | static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \ | |
1010 | show_temp_max, set_temp_max, offset - 1); | |
1da177e4 LT |
1011 | |
1012 | show_temp_reg(1); | |
1013 | show_temp_reg(2); | |
1014 | show_temp_reg(3); | |
1015 | ||
1016 | ||
1017 | /* Automatic PWM control */ | |
1018 | ||
b353a487 JD |
1019 | static ssize_t show_pwm_auto_channels(struct device *dev, |
1020 | struct device_attribute *attr, char *buf) | |
1da177e4 | 1021 | { |
b353a487 | 1022 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 1023 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 1024 | return sprintf(buf, "%d\n", ZONE_FROM_REG(data->autofan[nr].config)); |
1da177e4 | 1025 | } |
b353a487 JD |
1026 | |
1027 | static ssize_t set_pwm_auto_channels(struct device *dev, | |
1028 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 1029 | { |
b353a487 | 1030 | int nr = to_sensor_dev_attr(attr)->index; |
746f6884 AL |
1031 | struct lm85_data *data = dev_get_drvdata(dev); |
1032 | struct i2c_client *client = data->client; | |
09770b26 GR |
1033 | long val; |
1034 | int err; | |
1035 | ||
1036 | err = kstrtol(buf, 10, &val); | |
1037 | if (err) | |
1038 | return err; | |
1da177e4 | 1039 | |
9a61bf63 | 1040 | mutex_lock(&data->update_lock); |
1da177e4 | 1041 | data->autofan[nr].config = (data->autofan[nr].config & (~0xe0)) |
1f44809a | 1042 | | ZONE_TO_REG(val); |
1da177e4 LT |
1043 | lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr), |
1044 | data->autofan[nr].config); | |
9a61bf63 | 1045 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
1046 | return count; |
1047 | } | |
b353a487 JD |
1048 | |
1049 | static ssize_t show_pwm_auto_pwm_min(struct device *dev, | |
1050 | struct device_attribute *attr, char *buf) | |
1da177e4 | 1051 | { |
b353a487 | 1052 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 1053 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 1054 | return sprintf(buf, "%d\n", PWM_FROM_REG(data->autofan[nr].min_pwm)); |
1da177e4 | 1055 | } |
b353a487 JD |
1056 | |
1057 | static ssize_t set_pwm_auto_pwm_min(struct device *dev, | |
1058 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 1059 | { |
b353a487 | 1060 | int nr = to_sensor_dev_attr(attr)->index; |
746f6884 AL |
1061 | struct lm85_data *data = dev_get_drvdata(dev); |
1062 | struct i2c_client *client = data->client; | |
09770b26 GR |
1063 | unsigned long val; |
1064 | int err; | |
1065 | ||
1066 | err = kstrtoul(buf, 10, &val); | |
1067 | if (err) | |
1068 | return err; | |
1da177e4 | 1069 | |
9a61bf63 | 1070 | mutex_lock(&data->update_lock); |
1da177e4 LT |
1071 | data->autofan[nr].min_pwm = PWM_TO_REG(val); |
1072 | lm85_write_value(client, LM85_REG_AFAN_MINPWM(nr), | |
1073 | data->autofan[nr].min_pwm); | |
9a61bf63 | 1074 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
1075 | return count; |
1076 | } | |
b353a487 JD |
1077 | |
1078 | static ssize_t show_pwm_auto_pwm_minctl(struct device *dev, | |
1079 | struct device_attribute *attr, char *buf) | |
1da177e4 | 1080 | { |
b353a487 | 1081 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 1082 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 1083 | return sprintf(buf, "%d\n", data->autofan[nr].min_off); |
1da177e4 | 1084 | } |
b353a487 JD |
1085 | |
1086 | static ssize_t set_pwm_auto_pwm_minctl(struct device *dev, | |
1087 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 1088 | { |
b353a487 | 1089 | int nr = to_sensor_dev_attr(attr)->index; |
746f6884 AL |
1090 | struct lm85_data *data = dev_get_drvdata(dev); |
1091 | struct i2c_client *client = data->client; | |
7133e56f | 1092 | u8 tmp; |
09770b26 GR |
1093 | long val; |
1094 | int err; | |
1095 | ||
1096 | err = kstrtol(buf, 10, &val); | |
1097 | if (err) | |
1098 | return err; | |
1da177e4 | 1099 | |
9a61bf63 | 1100 | mutex_lock(&data->update_lock); |
1da177e4 | 1101 | data->autofan[nr].min_off = val; |
7133e56f JD |
1102 | tmp = lm85_read_value(client, LM85_REG_AFAN_SPIKE1); |
1103 | tmp &= ~(0x20 << nr); | |
1104 | if (data->autofan[nr].min_off) | |
1105 | tmp |= 0x20 << nr; | |
1106 | lm85_write_value(client, LM85_REG_AFAN_SPIKE1, tmp); | |
9a61bf63 | 1107 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
1108 | return count; |
1109 | } | |
b353a487 | 1110 | |
1da177e4 | 1111 | #define pwm_auto(offset) \ |
b353a487 JD |
1112 | static SENSOR_DEVICE_ATTR(pwm##offset##_auto_channels, \ |
1113 | S_IRUGO | S_IWUSR, show_pwm_auto_channels, \ | |
1114 | set_pwm_auto_channels, offset - 1); \ | |
1115 | static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_min, \ | |
1116 | S_IRUGO | S_IWUSR, show_pwm_auto_pwm_min, \ | |
1117 | set_pwm_auto_pwm_min, offset - 1); \ | |
1118 | static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_minctl, \ | |
1119 | S_IRUGO | S_IWUSR, show_pwm_auto_pwm_minctl, \ | |
34e7dc6c | 1120 | set_pwm_auto_pwm_minctl, offset - 1) |
b353a487 | 1121 | |
1da177e4 LT |
1122 | pwm_auto(1); |
1123 | pwm_auto(2); | |
1124 | pwm_auto(3); | |
1125 | ||
1126 | /* Temperature settings for automatic PWM control */ | |
1127 | ||
b353a487 JD |
1128 | static ssize_t show_temp_auto_temp_off(struct device *dev, |
1129 | struct device_attribute *attr, char *buf) | |
1da177e4 | 1130 | { |
b353a487 | 1131 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 1132 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 1133 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit) - |
1da177e4 LT |
1134 | HYST_FROM_REG(data->zone[nr].hyst)); |
1135 | } | |
b353a487 JD |
1136 | |
1137 | static ssize_t set_temp_auto_temp_off(struct device *dev, | |
1138 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 1139 | { |
b353a487 | 1140 | int nr = to_sensor_dev_attr(attr)->index; |
746f6884 AL |
1141 | struct lm85_data *data = dev_get_drvdata(dev); |
1142 | struct i2c_client *client = data->client; | |
1da177e4 | 1143 | int min; |
09770b26 GR |
1144 | long val; |
1145 | int err; | |
1146 | ||
1147 | err = kstrtol(buf, 10, &val); | |
1148 | if (err) | |
1149 | return err; | |
1da177e4 | 1150 | |
9a61bf63 | 1151 | mutex_lock(&data->update_lock); |
1da177e4 | 1152 | min = TEMP_FROM_REG(data->zone[nr].limit); |
1da177e4 | 1153 | data->zone[nr].hyst = HYST_TO_REG(min - val); |
1f44809a | 1154 | if (nr == 0 || nr == 1) { |
1da177e4 LT |
1155 | lm85_write_value(client, LM85_REG_AFAN_HYST1, |
1156 | (data->zone[0].hyst << 4) | |
1f44809a | 1157 | | data->zone[1].hyst); |
1da177e4 LT |
1158 | } else { |
1159 | lm85_write_value(client, LM85_REG_AFAN_HYST2, | |
1f44809a | 1160 | (data->zone[2].hyst << 4)); |
1da177e4 | 1161 | } |
9a61bf63 | 1162 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
1163 | return count; |
1164 | } | |
b353a487 JD |
1165 | |
1166 | static ssize_t show_temp_auto_temp_min(struct device *dev, | |
1167 | struct device_attribute *attr, char *buf) | |
1da177e4 | 1168 | { |
b353a487 | 1169 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 1170 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 1171 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit)); |
1da177e4 | 1172 | } |
b353a487 JD |
1173 | |
1174 | static ssize_t set_temp_auto_temp_min(struct device *dev, | |
1175 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 1176 | { |
b353a487 | 1177 | int nr = to_sensor_dev_attr(attr)->index; |
746f6884 AL |
1178 | struct lm85_data *data = dev_get_drvdata(dev); |
1179 | struct i2c_client *client = data->client; | |
09770b26 GR |
1180 | long val; |
1181 | int err; | |
1182 | ||
1183 | err = kstrtol(buf, 10, &val); | |
1184 | if (err) | |
1185 | return err; | |
1da177e4 | 1186 | |
9a61bf63 | 1187 | mutex_lock(&data->update_lock); |
1da177e4 LT |
1188 | data->zone[nr].limit = TEMP_TO_REG(val); |
1189 | lm85_write_value(client, LM85_REG_AFAN_LIMIT(nr), | |
1190 | data->zone[nr].limit); | |
1191 | ||
1192 | /* Update temp_auto_max and temp_auto_range */ | |
1193 | data->zone[nr].range = RANGE_TO_REG( | |
1194 | TEMP_FROM_REG(data->zone[nr].max_desired) - | |
1195 | TEMP_FROM_REG(data->zone[nr].limit)); | |
1196 | lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), | |
1197 | ((data->zone[nr].range & 0x0f) << 4) | |
34e7dc6c | 1198 | | (data->pwm_freq[nr] & 0x07)); |
1da177e4 | 1199 | |
9a61bf63 | 1200 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
1201 | return count; |
1202 | } | |
b353a487 JD |
1203 | |
1204 | static ssize_t show_temp_auto_temp_max(struct device *dev, | |
1205 | struct device_attribute *attr, char *buf) | |
1da177e4 | 1206 | { |
b353a487 | 1207 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 1208 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 1209 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit) + |
1da177e4 LT |
1210 | RANGE_FROM_REG(data->zone[nr].range)); |
1211 | } | |
b353a487 JD |
1212 | |
1213 | static ssize_t set_temp_auto_temp_max(struct device *dev, | |
1214 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 1215 | { |
b353a487 | 1216 | int nr = to_sensor_dev_attr(attr)->index; |
746f6884 AL |
1217 | struct lm85_data *data = dev_get_drvdata(dev); |
1218 | struct i2c_client *client = data->client; | |
1da177e4 | 1219 | int min; |
09770b26 GR |
1220 | long val; |
1221 | int err; | |
1222 | ||
1223 | err = kstrtol(buf, 10, &val); | |
1224 | if (err) | |
1225 | return err; | |
1da177e4 | 1226 | |
9a61bf63 | 1227 | mutex_lock(&data->update_lock); |
1da177e4 LT |
1228 | min = TEMP_FROM_REG(data->zone[nr].limit); |
1229 | data->zone[nr].max_desired = TEMP_TO_REG(val); | |
1230 | data->zone[nr].range = RANGE_TO_REG( | |
1231 | val - min); | |
1232 | lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), | |
1233 | ((data->zone[nr].range & 0x0f) << 4) | |
34e7dc6c | 1234 | | (data->pwm_freq[nr] & 0x07)); |
9a61bf63 | 1235 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
1236 | return count; |
1237 | } | |
b353a487 JD |
1238 | |
1239 | static ssize_t show_temp_auto_temp_crit(struct device *dev, | |
1240 | struct device_attribute *attr, char *buf) | |
1da177e4 | 1241 | { |
b353a487 | 1242 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 1243 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 1244 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].critical)); |
1da177e4 | 1245 | } |
b353a487 JD |
1246 | |
1247 | static ssize_t set_temp_auto_temp_crit(struct device *dev, | |
1f44809a | 1248 | struct device_attribute *attr, const char *buf, size_t count) |
1da177e4 | 1249 | { |
b353a487 | 1250 | int nr = to_sensor_dev_attr(attr)->index; |
746f6884 AL |
1251 | struct lm85_data *data = dev_get_drvdata(dev); |
1252 | struct i2c_client *client = data->client; | |
09770b26 GR |
1253 | long val; |
1254 | int err; | |
1255 | ||
1256 | err = kstrtol(buf, 10, &val); | |
1257 | if (err) | |
1258 | return err; | |
1da177e4 | 1259 | |
9a61bf63 | 1260 | mutex_lock(&data->update_lock); |
1da177e4 LT |
1261 | data->zone[nr].critical = TEMP_TO_REG(val); |
1262 | lm85_write_value(client, LM85_REG_AFAN_CRITICAL(nr), | |
1263 | data->zone[nr].critical); | |
9a61bf63 | 1264 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
1265 | return count; |
1266 | } | |
b353a487 | 1267 | |
1da177e4 | 1268 | #define temp_auto(offset) \ |
b353a487 JD |
1269 | static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_off, \ |
1270 | S_IRUGO | S_IWUSR, show_temp_auto_temp_off, \ | |
1271 | set_temp_auto_temp_off, offset - 1); \ | |
1272 | static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_min, \ | |
1273 | S_IRUGO | S_IWUSR, show_temp_auto_temp_min, \ | |
1274 | set_temp_auto_temp_min, offset - 1); \ | |
1275 | static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_max, \ | |
1276 | S_IRUGO | S_IWUSR, show_temp_auto_temp_max, \ | |
1277 | set_temp_auto_temp_max, offset - 1); \ | |
1278 | static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_crit, \ | |
1279 | S_IRUGO | S_IWUSR, show_temp_auto_temp_crit, \ | |
1280 | set_temp_auto_temp_crit, offset - 1); | |
1281 | ||
1da177e4 LT |
1282 | temp_auto(1); |
1283 | temp_auto(2); | |
1284 | temp_auto(3); | |
1285 | ||
0501a381 | 1286 | static struct attribute *lm85_attributes[] = { |
b353a487 JD |
1287 | &sensor_dev_attr_fan1_input.dev_attr.attr, |
1288 | &sensor_dev_attr_fan2_input.dev_attr.attr, | |
1289 | &sensor_dev_attr_fan3_input.dev_attr.attr, | |
1290 | &sensor_dev_attr_fan4_input.dev_attr.attr, | |
1291 | &sensor_dev_attr_fan1_min.dev_attr.attr, | |
1292 | &sensor_dev_attr_fan2_min.dev_attr.attr, | |
1293 | &sensor_dev_attr_fan3_min.dev_attr.attr, | |
1294 | &sensor_dev_attr_fan4_min.dev_attr.attr, | |
bf76e9d3 JD |
1295 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, |
1296 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, | |
1297 | &sensor_dev_attr_fan3_alarm.dev_attr.attr, | |
1298 | &sensor_dev_attr_fan4_alarm.dev_attr.attr, | |
b353a487 JD |
1299 | |
1300 | &sensor_dev_attr_pwm1.dev_attr.attr, | |
1301 | &sensor_dev_attr_pwm2.dev_attr.attr, | |
1302 | &sensor_dev_attr_pwm3.dev_attr.attr, | |
1303 | &sensor_dev_attr_pwm1_enable.dev_attr.attr, | |
1304 | &sensor_dev_attr_pwm2_enable.dev_attr.attr, | |
1305 | &sensor_dev_attr_pwm3_enable.dev_attr.attr, | |
34e7dc6c JD |
1306 | &sensor_dev_attr_pwm1_freq.dev_attr.attr, |
1307 | &sensor_dev_attr_pwm2_freq.dev_attr.attr, | |
1308 | &sensor_dev_attr_pwm3_freq.dev_attr.attr, | |
b353a487 JD |
1309 | |
1310 | &sensor_dev_attr_in0_input.dev_attr.attr, | |
1311 | &sensor_dev_attr_in1_input.dev_attr.attr, | |
1312 | &sensor_dev_attr_in2_input.dev_attr.attr, | |
1313 | &sensor_dev_attr_in3_input.dev_attr.attr, | |
1314 | &sensor_dev_attr_in0_min.dev_attr.attr, | |
1315 | &sensor_dev_attr_in1_min.dev_attr.attr, | |
1316 | &sensor_dev_attr_in2_min.dev_attr.attr, | |
1317 | &sensor_dev_attr_in3_min.dev_attr.attr, | |
1318 | &sensor_dev_attr_in0_max.dev_attr.attr, | |
1319 | &sensor_dev_attr_in1_max.dev_attr.attr, | |
1320 | &sensor_dev_attr_in2_max.dev_attr.attr, | |
1321 | &sensor_dev_attr_in3_max.dev_attr.attr, | |
bf76e9d3 JD |
1322 | &sensor_dev_attr_in0_alarm.dev_attr.attr, |
1323 | &sensor_dev_attr_in1_alarm.dev_attr.attr, | |
1324 | &sensor_dev_attr_in2_alarm.dev_attr.attr, | |
1325 | &sensor_dev_attr_in3_alarm.dev_attr.attr, | |
b353a487 JD |
1326 | |
1327 | &sensor_dev_attr_temp1_input.dev_attr.attr, | |
1328 | &sensor_dev_attr_temp2_input.dev_attr.attr, | |
1329 | &sensor_dev_attr_temp3_input.dev_attr.attr, | |
1330 | &sensor_dev_attr_temp1_min.dev_attr.attr, | |
1331 | &sensor_dev_attr_temp2_min.dev_attr.attr, | |
1332 | &sensor_dev_attr_temp3_min.dev_attr.attr, | |
1333 | &sensor_dev_attr_temp1_max.dev_attr.attr, | |
1334 | &sensor_dev_attr_temp2_max.dev_attr.attr, | |
1335 | &sensor_dev_attr_temp3_max.dev_attr.attr, | |
bf76e9d3 JD |
1336 | &sensor_dev_attr_temp1_alarm.dev_attr.attr, |
1337 | &sensor_dev_attr_temp2_alarm.dev_attr.attr, | |
1338 | &sensor_dev_attr_temp3_alarm.dev_attr.attr, | |
1339 | &sensor_dev_attr_temp1_fault.dev_attr.attr, | |
1340 | &sensor_dev_attr_temp3_fault.dev_attr.attr, | |
b353a487 JD |
1341 | |
1342 | &sensor_dev_attr_pwm1_auto_channels.dev_attr.attr, | |
1343 | &sensor_dev_attr_pwm2_auto_channels.dev_attr.attr, | |
1344 | &sensor_dev_attr_pwm3_auto_channels.dev_attr.attr, | |
1345 | &sensor_dev_attr_pwm1_auto_pwm_min.dev_attr.attr, | |
1346 | &sensor_dev_attr_pwm2_auto_pwm_min.dev_attr.attr, | |
1347 | &sensor_dev_attr_pwm3_auto_pwm_min.dev_attr.attr, | |
b353a487 | 1348 | |
b353a487 JD |
1349 | &sensor_dev_attr_temp1_auto_temp_min.dev_attr.attr, |
1350 | &sensor_dev_attr_temp2_auto_temp_min.dev_attr.attr, | |
1351 | &sensor_dev_attr_temp3_auto_temp_min.dev_attr.attr, | |
1352 | &sensor_dev_attr_temp1_auto_temp_max.dev_attr.attr, | |
1353 | &sensor_dev_attr_temp2_auto_temp_max.dev_attr.attr, | |
1354 | &sensor_dev_attr_temp3_auto_temp_max.dev_attr.attr, | |
1355 | &sensor_dev_attr_temp1_auto_temp_crit.dev_attr.attr, | |
1356 | &sensor_dev_attr_temp2_auto_temp_crit.dev_attr.attr, | |
1357 | &sensor_dev_attr_temp3_auto_temp_crit.dev_attr.attr, | |
1358 | ||
0501a381 MH |
1359 | &dev_attr_vrm.attr, |
1360 | &dev_attr_cpu0_vid.attr, | |
1361 | &dev_attr_alarms.attr, | |
0501a381 MH |
1362 | NULL |
1363 | }; | |
1364 | ||
1365 | static const struct attribute_group lm85_group = { | |
1366 | .attrs = lm85_attributes, | |
1367 | }; | |
1368 | ||
06923f84 GR |
1369 | static struct attribute *lm85_attributes_minctl[] = { |
1370 | &sensor_dev_attr_pwm1_auto_pwm_minctl.dev_attr.attr, | |
1371 | &sensor_dev_attr_pwm2_auto_pwm_minctl.dev_attr.attr, | |
1372 | &sensor_dev_attr_pwm3_auto_pwm_minctl.dev_attr.attr, | |
5f441e22 | 1373 | NULL |
06923f84 GR |
1374 | }; |
1375 | ||
1376 | static const struct attribute_group lm85_group_minctl = { | |
1377 | .attrs = lm85_attributes_minctl, | |
1378 | }; | |
1379 | ||
1380 | static struct attribute *lm85_attributes_temp_off[] = { | |
1381 | &sensor_dev_attr_temp1_auto_temp_off.dev_attr.attr, | |
1382 | &sensor_dev_attr_temp2_auto_temp_off.dev_attr.attr, | |
1383 | &sensor_dev_attr_temp3_auto_temp_off.dev_attr.attr, | |
5f441e22 | 1384 | NULL |
06923f84 GR |
1385 | }; |
1386 | ||
1387 | static const struct attribute_group lm85_group_temp_off = { | |
1388 | .attrs = lm85_attributes_temp_off, | |
1389 | }; | |
1390 | ||
6b9aad2d | 1391 | static struct attribute *lm85_attributes_in4[] = { |
b353a487 JD |
1392 | &sensor_dev_attr_in4_input.dev_attr.attr, |
1393 | &sensor_dev_attr_in4_min.dev_attr.attr, | |
1394 | &sensor_dev_attr_in4_max.dev_attr.attr, | |
bf76e9d3 | 1395 | &sensor_dev_attr_in4_alarm.dev_attr.attr, |
0501a381 MH |
1396 | NULL |
1397 | }; | |
1398 | ||
6b9aad2d JD |
1399 | static const struct attribute_group lm85_group_in4 = { |
1400 | .attrs = lm85_attributes_in4, | |
1401 | }; | |
1402 | ||
1403 | static struct attribute *lm85_attributes_in567[] = { | |
1404 | &sensor_dev_attr_in5_input.dev_attr.attr, | |
1405 | &sensor_dev_attr_in6_input.dev_attr.attr, | |
1406 | &sensor_dev_attr_in7_input.dev_attr.attr, | |
1407 | &sensor_dev_attr_in5_min.dev_attr.attr, | |
1408 | &sensor_dev_attr_in6_min.dev_attr.attr, | |
1409 | &sensor_dev_attr_in7_min.dev_attr.attr, | |
1410 | &sensor_dev_attr_in5_max.dev_attr.attr, | |
1411 | &sensor_dev_attr_in6_max.dev_attr.attr, | |
1412 | &sensor_dev_attr_in7_max.dev_attr.attr, | |
bf76e9d3 JD |
1413 | &sensor_dev_attr_in5_alarm.dev_attr.attr, |
1414 | &sensor_dev_attr_in6_alarm.dev_attr.attr, | |
1415 | &sensor_dev_attr_in7_alarm.dev_attr.attr, | |
6b9aad2d JD |
1416 | NULL |
1417 | }; | |
1418 | ||
1419 | static const struct attribute_group lm85_group_in567 = { | |
1420 | .attrs = lm85_attributes_in567, | |
0501a381 MH |
1421 | }; |
1422 | ||
5f447594 JD |
1423 | static void lm85_init_client(struct i2c_client *client) |
1424 | { | |
1425 | int value; | |
1426 | ||
1427 | /* Start monitoring if needed */ | |
1428 | value = lm85_read_value(client, LM85_REG_CONFIG); | |
1429 | if (!(value & 0x01)) { | |
1430 | dev_info(&client->dev, "Starting monitoring\n"); | |
1431 | lm85_write_value(client, LM85_REG_CONFIG, value | 0x01); | |
1432 | } | |
1433 | ||
1434 | /* Warn about unusual configuration bits */ | |
1435 | if (value & 0x02) | |
1436 | dev_warn(&client->dev, "Device configuration is locked\n"); | |
1437 | if (!(value & 0x04)) | |
1438 | dev_warn(&client->dev, "Device is not ready\n"); | |
1439 | } | |
1440 | ||
5cfaf338 JD |
1441 | static int lm85_is_fake(struct i2c_client *client) |
1442 | { | |
1443 | /* | |
1444 | * Differenciate between real LM96000 and Winbond WPCD377I. The latter | |
1445 | * emulate the former except that it has no hardware monitoring function | |
1446 | * so the readings are always 0. | |
1447 | */ | |
1448 | int i; | |
1449 | u8 in_temp, fan; | |
1450 | ||
1451 | for (i = 0; i < 8; i++) { | |
1452 | in_temp = i2c_smbus_read_byte_data(client, 0x20 + i); | |
1453 | fan = i2c_smbus_read_byte_data(client, 0x28 + i); | |
1454 | if (in_temp != 0x00 || fan != 0xff) | |
1455 | return 0; | |
1456 | } | |
1457 | ||
1458 | return 1; | |
1459 | } | |
1460 | ||
67712d01 | 1461 | /* Return 0 if detection is successful, -ENODEV otherwise */ |
310ec792 | 1462 | static int lm85_detect(struct i2c_client *client, struct i2c_board_info *info) |
1da177e4 | 1463 | { |
67712d01 JD |
1464 | struct i2c_adapter *adapter = client->adapter; |
1465 | int address = client->addr; | |
590e8534 | 1466 | const char *type_name = NULL; |
d42a2eb5 | 1467 | int company, verstep; |
1da177e4 | 1468 | |
e89e22b2 | 1469 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { |
1da177e4 | 1470 | /* We need to be able to do byte I/O */ |
67712d01 | 1471 | return -ENODEV; |
1f44809a | 1472 | } |
1da177e4 | 1473 | |
d42a2eb5 JD |
1474 | /* Determine the chip type */ |
1475 | company = lm85_read_value(client, LM85_REG_COMPANY); | |
1476 | verstep = lm85_read_value(client, LM85_REG_VERSTEP); | |
1477 | ||
b55f3757 GR |
1478 | dev_dbg(&adapter->dev, |
1479 | "Detecting device at 0x%02x with COMPANY: 0x%02x and VERSTEP: 0x%02x\n", | |
d42a2eb5 JD |
1480 | address, company, verstep); |
1481 | ||
d42a2eb5 JD |
1482 | if (company == LM85_COMPANY_NATIONAL) { |
1483 | switch (verstep) { | |
1484 | case LM85_VERSTEP_LM85C: | |
1485 | type_name = "lm85c"; | |
1486 | break; | |
1487 | case LM85_VERSTEP_LM85B: | |
1488 | type_name = "lm85b"; | |
1489 | break; | |
1490 | case LM85_VERSTEP_LM96000_1: | |
1491 | case LM85_VERSTEP_LM96000_2: | |
1492 | /* Check for Winbond WPCD377I */ | |
1493 | if (lm85_is_fake(client)) { | |
1494 | dev_dbg(&adapter->dev, | |
1495 | "Found Winbond WPCD377I, ignoring\n"); | |
1496 | return -ENODEV; | |
69fc1feb | 1497 | } |
590e8534 | 1498 | type_name = "lm85"; |
d42a2eb5 JD |
1499 | break; |
1500 | } | |
1501 | } else if (company == LM85_COMPANY_ANALOG_DEV) { | |
1502 | switch (verstep) { | |
1503 | case LM85_VERSTEP_ADM1027: | |
1504 | type_name = "adm1027"; | |
1505 | break; | |
1506 | case LM85_VERSTEP_ADT7463: | |
1507 | case LM85_VERSTEP_ADT7463C: | |
1508 | type_name = "adt7463"; | |
1509 | break; | |
1510 | case LM85_VERSTEP_ADT7468_1: | |
1511 | case LM85_VERSTEP_ADT7468_2: | |
1512 | type_name = "adt7468"; | |
1513 | break; | |
1da177e4 | 1514 | } |
d42a2eb5 JD |
1515 | } else if (company == LM85_COMPANY_SMSC) { |
1516 | switch (verstep) { | |
1517 | case LM85_VERSTEP_EMC6D100_A0: | |
1518 | case LM85_VERSTEP_EMC6D100_A1: | |
1519 | /* Note: we can't tell a '100 from a '101 */ | |
1520 | type_name = "emc6d100"; | |
1521 | break; | |
1522 | case LM85_VERSTEP_EMC6D102: | |
1523 | type_name = "emc6d102"; | |
1524 | break; | |
f065a93e JB |
1525 | case LM85_VERSTEP_EMC6D103_A0: |
1526 | case LM85_VERSTEP_EMC6D103_A1: | |
1527 | type_name = "emc6d103"; | |
1528 | break; | |
f065a93e JB |
1529 | case LM85_VERSTEP_EMC6D103S: |
1530 | type_name = "emc6d103s"; | |
1531 | break; | |
d42a2eb5 | 1532 | } |
1da177e4 LT |
1533 | } |
1534 | ||
590e8534 JD |
1535 | if (!type_name) |
1536 | return -ENODEV; | |
1537 | ||
67712d01 JD |
1538 | strlcpy(info->type, type_name, I2C_NAME_SIZE); |
1539 | ||
1540 | return 0; | |
1541 | } | |
1da177e4 | 1542 | |
746f6884 | 1543 | static int lm85_probe(struct i2c_client *client, const struct i2c_device_id *id) |
67712d01 | 1544 | { |
746f6884 AL |
1545 | struct device *dev = &client->dev; |
1546 | struct device *hwmon_dev; | |
67712d01 | 1547 | struct lm85_data *data; |
746f6884 | 1548 | int idx = 0; |
67712d01 | 1549 | |
746f6884 | 1550 | data = devm_kzalloc(dev, sizeof(struct lm85_data), GFP_KERNEL); |
67712d01 JD |
1551 | if (!data) |
1552 | return -ENOMEM; | |
1553 | ||
746f6884 | 1554 | data->client = client; |
67712d01 | 1555 | data->type = id->driver_data; |
9a61bf63 | 1556 | mutex_init(&data->update_lock); |
1da177e4 | 1557 | |
67712d01 JD |
1558 | /* Fill in the chip specific driver values */ |
1559 | switch (data->type) { | |
1560 | case adm1027: | |
1561 | case adt7463: | |
fa7a5797 | 1562 | case adt7468: |
67712d01 JD |
1563 | case emc6d100: |
1564 | case emc6d102: | |
f065a93e | 1565 | case emc6d103: |
06923f84 | 1566 | case emc6d103s: |
67712d01 JD |
1567 | data->freq_map = adm1027_freq_map; |
1568 | break; | |
1569 | default: | |
1570 | data->freq_map = lm85_freq_map; | |
1571 | } | |
1da177e4 LT |
1572 | |
1573 | /* Set the VRM version */ | |
303760b4 | 1574 | data->vrm = vid_which_vrm(); |
1da177e4 LT |
1575 | |
1576 | /* Initialize the LM85 chip */ | |
e89e22b2 | 1577 | lm85_init_client(client); |
1da177e4 | 1578 | |
746f6884 AL |
1579 | /* sysfs hooks */ |
1580 | data->groups[idx++] = &lm85_group; | |
1da177e4 | 1581 | |
06923f84 GR |
1582 | /* minctl and temp_off exist on all chips except emc6d103s */ |
1583 | if (data->type != emc6d103s) { | |
746f6884 AL |
1584 | data->groups[idx++] = &lm85_group_minctl; |
1585 | data->groups[idx++] = &lm85_group_temp_off; | |
06923f84 GR |
1586 | } |
1587 | ||
09770b26 GR |
1588 | /* |
1589 | * The ADT7463/68 have an optional VRM 10 mode where pin 21 is used | |
1590 | * as a sixth digital VID input rather than an analog input. | |
1591 | */ | |
de248805 GR |
1592 | if (data->type == adt7463 || data->type == adt7468) { |
1593 | u8 vid = lm85_read_value(client, LM85_REG_VID); | |
1594 | if (vid & 0x80) | |
1595 | data->has_vid5 = true; | |
1596 | } | |
1597 | ||
746f6884 AL |
1598 | if (!data->has_vid5) |
1599 | data->groups[idx++] = &lm85_group_in4; | |
6b9aad2d JD |
1600 | |
1601 | /* The EMC6D100 has 3 additional voltage inputs */ | |
746f6884 AL |
1602 | if (data->type == emc6d100) |
1603 | data->groups[idx++] = &lm85_group_in567; | |
1da177e4 | 1604 | |
746f6884 AL |
1605 | hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, |
1606 | data, data->groups); | |
1607 | return PTR_ERR_OR_ZERO(hwmon_dev); | |
1da177e4 LT |
1608 | } |
1609 | ||
6fd5dd58 AL |
1610 | static const struct i2c_device_id lm85_id[] = { |
1611 | { "adm1027", adm1027 }, | |
1612 | { "adt7463", adt7463 }, | |
1613 | { "adt7468", adt7468 }, | |
1614 | { "lm85", lm85 }, | |
1615 | { "lm85b", lm85 }, | |
1616 | { "lm85c", lm85 }, | |
1617 | { "emc6d100", emc6d100 }, | |
1618 | { "emc6d101", emc6d100 }, | |
1619 | { "emc6d102", emc6d102 }, | |
1620 | { "emc6d103", emc6d103 }, | |
1621 | { "emc6d103s", emc6d103s }, | |
1622 | { } | |
1623 | }; | |
1624 | MODULE_DEVICE_TABLE(i2c, lm85_id); | |
1da177e4 | 1625 | |
6fd5dd58 AL |
1626 | static struct i2c_driver lm85_driver = { |
1627 | .class = I2C_CLASS_HWMON, | |
1628 | .driver = { | |
1629 | .name = "lm85", | |
1630 | }, | |
1631 | .probe = lm85_probe, | |
6fd5dd58 AL |
1632 | .id_table = lm85_id, |
1633 | .detect = lm85_detect, | |
1634 | .address_list = normal_i2c, | |
1635 | }; | |
1da177e4 | 1636 | |
f0967eea | 1637 | module_i2c_driver(lm85_driver); |
1da177e4 | 1638 | |
1da177e4 | 1639 | MODULE_LICENSE("GPL"); |
1f44809a JD |
1640 | MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, " |
1641 | "Margit Schubert-While <margitsw@t-online.de>, " | |
e89e22b2 | 1642 | "Justin Thiessen <jthiessen@penguincomputing.com>"); |
1da177e4 | 1643 | MODULE_DESCRIPTION("LM85-B, LM85-C driver"); |