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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 | 27 | #include <linux/module.h> |
00c0f9d3 | 28 | #include <linux/of_device.h> |
1da177e4 LT |
29 | #include <linux/init.h> |
30 | #include <linux/slab.h> | |
31 | #include <linux/jiffies.h> | |
32 | #include <linux/i2c.h> | |
943b0830 | 33 | #include <linux/hwmon.h> |
303760b4 | 34 | #include <linux/hwmon-vid.h> |
b353a487 | 35 | #include <linux/hwmon-sysfs.h> |
943b0830 | 36 | #include <linux/err.h> |
9a61bf63 | 37 | #include <linux/mutex.h> |
0f3721c5 | 38 | #include <linux/util_macros.h> |
1da177e4 LT |
39 | |
40 | /* Addresses to scan */ | |
25e9c86d | 41 | static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END }; |
1da177e4 | 42 | |
e5e9f44c | 43 | enum chips { |
590e8534 | 44 | lm85, |
e5e9f44c | 45 | adm1027, adt7463, adt7468, |
06923f84 | 46 | emc6d100, emc6d102, emc6d103, emc6d103s |
e5e9f44c | 47 | }; |
1da177e4 LT |
48 | |
49 | /* The LM85 registers */ | |
50 | ||
09770b26 GR |
51 | #define LM85_REG_IN(nr) (0x20 + (nr)) |
52 | #define LM85_REG_IN_MIN(nr) (0x44 + (nr) * 2) | |
53 | #define LM85_REG_IN_MAX(nr) (0x45 + (nr) * 2) | |
1da177e4 | 54 | |
09770b26 GR |
55 | #define LM85_REG_TEMP(nr) (0x25 + (nr)) |
56 | #define LM85_REG_TEMP_MIN(nr) (0x4e + (nr) * 2) | |
57 | #define LM85_REG_TEMP_MAX(nr) (0x4f + (nr) * 2) | |
1da177e4 LT |
58 | |
59 | /* Fan speeds are LSB, MSB (2 bytes) */ | |
09770b26 GR |
60 | #define LM85_REG_FAN(nr) (0x28 + (nr) * 2) |
61 | #define LM85_REG_FAN_MIN(nr) (0x54 + (nr) * 2) | |
1da177e4 | 62 | |
09770b26 | 63 | #define LM85_REG_PWM(nr) (0x30 + (nr)) |
1da177e4 | 64 | |
09770b26 GR |
65 | #define LM85_REG_COMPANY 0x3e |
66 | #define LM85_REG_VERSTEP 0x3f | |
79b92f2b | 67 | |
09770b26 GR |
68 | #define ADT7468_REG_CFG5 0x7c |
69 | #define ADT7468_OFF64 (1 << 0) | |
70 | #define ADT7468_HFPWM (1 << 1) | |
71 | #define IS_ADT7468_OFF64(data) \ | |
79b92f2b | 72 | ((data)->type == adt7468 && !((data)->cfg5 & ADT7468_OFF64)) |
09770b26 | 73 | #define IS_ADT7468_HFPWM(data) \ |
f6c61cff | 74 | ((data)->type == adt7468 && !((data)->cfg5 & ADT7468_HFPWM)) |
79b92f2b | 75 | |
1da177e4 | 76 | /* These are the recognized values for the above regs */ |
09770b26 GR |
77 | #define LM85_COMPANY_NATIONAL 0x01 |
78 | #define LM85_COMPANY_ANALOG_DEV 0x41 | |
79 | #define LM85_COMPANY_SMSC 0x5c | |
09770b26 GR |
80 | #define LM85_VERSTEP_LM85C 0x60 |
81 | #define LM85_VERSTEP_LM85B 0x62 | |
82 | #define LM85_VERSTEP_LM96000_1 0x68 | |
83 | #define LM85_VERSTEP_LM96000_2 0x69 | |
84 | #define LM85_VERSTEP_ADM1027 0x60 | |
85 | #define LM85_VERSTEP_ADT7463 0x62 | |
86 | #define LM85_VERSTEP_ADT7463C 0x6A | |
87 | #define LM85_VERSTEP_ADT7468_1 0x71 | |
88 | #define LM85_VERSTEP_ADT7468_2 0x72 | |
89 | #define LM85_VERSTEP_EMC6D100_A0 0x60 | |
90 | #define LM85_VERSTEP_EMC6D100_A1 0x61 | |
91 | #define LM85_VERSTEP_EMC6D102 0x65 | |
92 | #define LM85_VERSTEP_EMC6D103_A0 0x68 | |
93 | #define LM85_VERSTEP_EMC6D103_A1 0x69 | |
94 | #define LM85_VERSTEP_EMC6D103S 0x6A /* Also known as EMC6D103:A2 */ | |
95 | ||
96 | #define LM85_REG_CONFIG 0x40 | |
97 | ||
98 | #define LM85_REG_ALARM1 0x41 | |
99 | #define LM85_REG_ALARM2 0x42 | |
100 | ||
101 | #define LM85_REG_VID 0x43 | |
1da177e4 LT |
102 | |
103 | /* Automated FAN control */ | |
09770b26 GR |
104 | #define LM85_REG_AFAN_CONFIG(nr) (0x5c + (nr)) |
105 | #define LM85_REG_AFAN_RANGE(nr) (0x5f + (nr)) | |
106 | #define LM85_REG_AFAN_SPIKE1 0x62 | |
107 | #define LM85_REG_AFAN_MINPWM(nr) (0x64 + (nr)) | |
108 | #define LM85_REG_AFAN_LIMIT(nr) (0x67 + (nr)) | |
109 | #define LM85_REG_AFAN_CRITICAL(nr) (0x6a + (nr)) | |
110 | #define LM85_REG_AFAN_HYST1 0x6d | |
111 | #define LM85_REG_AFAN_HYST2 0x6e | |
112 | ||
113 | #define ADM1027_REG_EXTEND_ADC1 0x76 | |
114 | #define ADM1027_REG_EXTEND_ADC2 0x77 | |
1da177e4 LT |
115 | |
116 | #define EMC6D100_REG_ALARM3 0x7d | |
117 | /* IN5, IN6 and IN7 */ | |
09770b26 GR |
118 | #define EMC6D100_REG_IN(nr) (0x70 + ((nr) - 5)) |
119 | #define EMC6D100_REG_IN_MIN(nr) (0x73 + ((nr) - 5) * 2) | |
120 | #define EMC6D100_REG_IN_MAX(nr) (0x74 + ((nr) - 5) * 2) | |
121 | #define EMC6D102_REG_EXTEND_ADC1 0x85 | |
122 | #define EMC6D102_REG_EXTEND_ADC2 0x86 | |
123 | #define EMC6D102_REG_EXTEND_ADC3 0x87 | |
124 | #define EMC6D102_REG_EXTEND_ADC4 0x88 | |
125 | ||
09770b26 GR |
126 | /* |
127 | * Conversions. Rounding and limit checking is only done on the TO_REG | |
128 | * variants. Note that you should be a bit careful with which arguments | |
129 | * these macros are called: arguments may be evaluated more than once. | |
1da177e4 LT |
130 | */ |
131 | ||
25985edc | 132 | /* IN are scaled according to built-in resistors */ |
e89e22b2 | 133 | static const int lm85_scaling[] = { /* .001 Volts */ |
1f44809a JD |
134 | 2500, 2250, 3300, 5000, 12000, |
135 | 3300, 1500, 1800 /*EMC6D100*/ | |
136 | }; | |
137 | #define SCALE(val, from, to) (((val) * (to) + ((from) / 2)) / (from)) | |
1da177e4 | 138 | |
1f44809a | 139 | #define INS_TO_REG(n, val) \ |
67b20034 GR |
140 | SCALE(clamp_val(val, 0, 255 * lm85_scaling[n] / 192), \ |
141 | lm85_scaling[n], 192) | |
1da177e4 | 142 | |
1f44809a | 143 | #define INSEXT_FROM_REG(n, val, ext) \ |
5a4d3ef3 | 144 | SCALE(((val) << 4) + (ext), 192 << 4, lm85_scaling[n]) |
1da177e4 | 145 | |
1f44809a | 146 | #define INS_FROM_REG(n, val) SCALE((val), 192, lm85_scaling[n]) |
1da177e4 LT |
147 | |
148 | /* FAN speed is measured using 90kHz clock */ | |
63f281a6 JD |
149 | static inline u16 FAN_TO_REG(unsigned long val) |
150 | { | |
151 | if (!val) | |
152 | return 0xffff; | |
2a844c14 | 153 | return clamp_val(5400000 / val, 1, 0xfffe); |
63f281a6 | 154 | } |
1f44809a JD |
155 | #define FAN_FROM_REG(val) ((val) == 0 ? -1 : (val) == 0xffff ? 0 : \ |
156 | 5400000 / (val)) | |
1da177e4 LT |
157 | |
158 | /* Temperature is reported in .001 degC increments */ | |
159 | #define TEMP_TO_REG(val) \ | |
3248c3b7 | 160 | DIV_ROUND_CLOSEST(clamp_val((val), -127000, 127000), 1000) |
1f44809a | 161 | #define TEMPEXT_FROM_REG(val, ext) \ |
5a4d3ef3 JD |
162 | SCALE(((val) << 4) + (ext), 16, 1000) |
163 | #define TEMP_FROM_REG(val) ((val) * 1000) | |
1da177e4 | 164 | |
2a844c14 | 165 | #define PWM_TO_REG(val) clamp_val(val, 0, 255) |
1da177e4 LT |
166 | #define PWM_FROM_REG(val) (val) |
167 | ||
168 | ||
09770b26 GR |
169 | /* |
170 | * ZONEs have the following parameters: | |
1da177e4 LT |
171 | * Limit (low) temp, 1. degC |
172 | * Hysteresis (below limit), 1. degC (0-15) | |
173 | * Range of speed control, .1 degC (2-80) | |
174 | * Critical (high) temp, 1. degC | |
175 | * | |
176 | * FAN PWMs have the following parameters: | |
177 | * Reference Zone, 1, 2, 3, etc. | |
178 | * Spinup time, .05 sec | |
179 | * PWM value at limit/low temp, 1 count | |
180 | * PWM Frequency, 1. Hz | |
181 | * PWM is Min or OFF below limit, flag | |
182 | * Invert PWM output, flag | |
183 | * | |
184 | * Some chips filter the temp, others the fan. | |
185 | * Filter constant (or disabled) .1 seconds | |
186 | */ | |
187 | ||
188 | /* These are the zone temperature range encodings in .001 degree C */ | |
e89e22b2 | 189 | static const int lm85_range_map[] = { |
1f44809a JD |
190 | 2000, 2500, 3300, 4000, 5000, 6600, 8000, 10000, |
191 | 13300, 16000, 20000, 26600, 32000, 40000, 53300, 80000 | |
192 | }; | |
193 | ||
3248c3b7 | 194 | static int RANGE_TO_REG(long range) |
1da177e4 | 195 | { |
0f3721c5 | 196 | return find_closest(range, lm85_range_map, ARRAY_SIZE(lm85_range_map)); |
1da177e4 | 197 | } |
1f44809a | 198 | #define RANGE_FROM_REG(val) lm85_range_map[(val) & 0x0f] |
1da177e4 | 199 | |
1da177e4 | 200 | /* These are the PWM frequency encodings */ |
34e7dc6c | 201 | static const int lm85_freq_map[8] = { /* 1 Hz */ |
8a0795d9 JD |
202 | 10, 15, 23, 30, 38, 47, 61, 94 |
203 | }; | |
204 | static const int adm1027_freq_map[8] = { /* 1 Hz */ | |
205 | 11, 15, 22, 29, 35, 44, 59, 88 | |
1f44809a | 206 | }; |
0f3721c5 | 207 | #define FREQ_MAP_LEN 8 |
1f44809a | 208 | |
0f3721c5 BG |
209 | static int FREQ_TO_REG(const int *map, |
210 | unsigned int map_size, unsigned long freq) | |
1da177e4 | 211 | { |
0f3721c5 | 212 | return find_closest(freq, map, map_size); |
1da177e4 | 213 | } |
8a0795d9 JD |
214 | |
215 | static int FREQ_FROM_REG(const int *map, u8 reg) | |
216 | { | |
217 | return map[reg & 0x07]; | |
218 | } | |
1da177e4 | 219 | |
09770b26 GR |
220 | /* |
221 | * Since we can't use strings, I'm abusing these numbers | |
1da177e4 LT |
222 | * to stand in for the following meanings: |
223 | * 1 -- PWM responds to Zone 1 | |
224 | * 2 -- PWM responds to Zone 2 | |
225 | * 3 -- PWM responds to Zone 3 | |
226 | * 23 -- PWM responds to the higher temp of Zone 2 or 3 | |
227 | * 123 -- PWM responds to highest of Zone 1, 2, or 3 | |
228 | * 0 -- PWM is always at 0% (ie, off) | |
229 | * -1 -- PWM is always at 100% | |
230 | * -2 -- PWM responds to manual control | |
231 | */ | |
232 | ||
e89e22b2 JD |
233 | static const int lm85_zone_map[] = { 1, 2, 3, -1, 0, 23, 123, -2 }; |
234 | #define ZONE_FROM_REG(val) lm85_zone_map[(val) >> 5] | |
1da177e4 | 235 | |
1f44809a | 236 | static int ZONE_TO_REG(int zone) |
1da177e4 LT |
237 | { |
238 | int i; | |
239 | ||
1f44809a JD |
240 | for (i = 0; i <= 7; ++i) |
241 | if (zone == lm85_zone_map[i]) | |
242 | break; | |
243 | if (i > 7) /* Not found. */ | |
1da177e4 | 244 | i = 3; /* Always 100% */ |
e89e22b2 | 245 | return i << 5; |
1da177e4 LT |
246 | } |
247 | ||
2a844c14 | 248 | #define HYST_TO_REG(val) clamp_val(((val) + 500) / 1000, 0, 15) |
1f44809a | 249 | #define HYST_FROM_REG(val) ((val) * 1000) |
1da177e4 | 250 | |
09770b26 GR |
251 | /* |
252 | * Chip sampling rates | |
1da177e4 LT |
253 | * |
254 | * Some sensors are not updated more frequently than once per second | |
255 | * so it doesn't make sense to read them more often than that. | |
256 | * We cache the results and return the saved data if the driver | |
257 | * is called again before a second has elapsed. | |
258 | * | |
259 | * Also, there is significant configuration data for this chip | |
260 | * given the automatic PWM fan control that is possible. There | |
261 | * are about 47 bytes of config data to only 22 bytes of actual | |
262 | * readings. So, we keep the config data up to date in the cache | |
263 | * when it is written and only sample it once every 1 *minute* | |
264 | */ | |
265 | #define LM85_DATA_INTERVAL (HZ + HZ / 2) | |
266 | #define LM85_CONFIG_INTERVAL (1 * 60 * HZ) | |
267 | ||
09770b26 GR |
268 | /* |
269 | * LM85 can automatically adjust fan speeds based on temperature | |
1da177e4 LT |
270 | * This structure encapsulates an entire Zone config. There are |
271 | * three zones (one for each temperature input) on the lm85 | |
272 | */ | |
273 | struct lm85_zone { | |
274 | s8 limit; /* Low temp limit */ | |
275 | u8 hyst; /* Low limit hysteresis. (0-15) */ | |
276 | u8 range; /* Temp range, encoded */ | |
277 | s8 critical; /* "All fans ON" temp limit */ | |
09770b26 GR |
278 | u8 max_desired; /* |
279 | * Actual "max" temperature specified. Preserved | |
1da177e4 LT |
280 | * to prevent "drift" as other autofan control |
281 | * values change. | |
282 | */ | |
283 | }; | |
284 | ||
285 | struct lm85_autofan { | |
286 | u8 config; /* Register value */ | |
1da177e4 LT |
287 | u8 min_pwm; /* Minimum PWM value, encoded */ |
288 | u8 min_off; /* Min PWM or OFF below "limit", flag */ | |
289 | }; | |
290 | ||
09770b26 GR |
291 | /* |
292 | * For each registered chip, we need to keep some data in memory. | |
293 | * The structure is dynamically allocated. | |
294 | */ | |
1da177e4 | 295 | struct lm85_data { |
746f6884 AL |
296 | struct i2c_client *client; |
297 | const struct attribute_group *groups[6]; | |
8a0795d9 | 298 | const int *freq_map; |
1da177e4 LT |
299 | enum chips type; |
300 | ||
de248805 GR |
301 | bool has_vid5; /* true if VID5 is configured for ADT7463 or ADT7468 */ |
302 | ||
9a61bf63 | 303 | struct mutex update_lock; |
1da177e4 LT |
304 | int valid; /* !=0 if following fields are valid */ |
305 | unsigned long last_reading; /* In jiffies */ | |
306 | unsigned long last_config; /* In jiffies */ | |
307 | ||
308 | u8 in[8]; /* Register value */ | |
309 | u8 in_max[8]; /* Register value */ | |
310 | u8 in_min[8]; /* Register value */ | |
311 | s8 temp[3]; /* Register value */ | |
312 | s8 temp_min[3]; /* Register value */ | |
313 | s8 temp_max[3]; /* Register value */ | |
1da177e4 LT |
314 | u16 fan[4]; /* Register value */ |
315 | u16 fan_min[4]; /* Register value */ | |
316 | u8 pwm[3]; /* Register value */ | |
34e7dc6c | 317 | u8 pwm_freq[3]; /* Register encoding */ |
1da177e4 LT |
318 | u8 temp_ext[3]; /* Decoded values */ |
319 | u8 in_ext[8]; /* Decoded values */ | |
1da177e4 LT |
320 | u8 vid; /* Register value */ |
321 | u8 vrm; /* VRM version */ | |
1da177e4 | 322 | u32 alarms; /* Register encoding, combined */ |
79b92f2b | 323 | u8 cfg5; /* Config Register 5 on ADT7468 */ |
1da177e4 LT |
324 | struct lm85_autofan autofan[3]; |
325 | struct lm85_zone zone[3]; | |
326 | }; | |
327 | ||
6fd5dd58 AL |
328 | static int lm85_read_value(struct i2c_client *client, u8 reg) |
329 | { | |
330 | int res; | |
1da177e4 | 331 | |
6fd5dd58 AL |
332 | /* What size location is it? */ |
333 | switch (reg) { | |
334 | case LM85_REG_FAN(0): /* Read WORD data */ | |
335 | case LM85_REG_FAN(1): | |
336 | case LM85_REG_FAN(2): | |
337 | case LM85_REG_FAN(3): | |
338 | case LM85_REG_FAN_MIN(0): | |
339 | case LM85_REG_FAN_MIN(1): | |
340 | case LM85_REG_FAN_MIN(2): | |
341 | case LM85_REG_FAN_MIN(3): | |
342 | case LM85_REG_ALARM1: /* Read both bytes at once */ | |
343 | res = i2c_smbus_read_byte_data(client, reg) & 0xff; | |
344 | res |= i2c_smbus_read_byte_data(client, reg + 1) << 8; | |
345 | break; | |
346 | default: /* Read BYTE data */ | |
347 | res = i2c_smbus_read_byte_data(client, reg); | |
348 | break; | |
349 | } | |
1da177e4 | 350 | |
6fd5dd58 AL |
351 | return res; |
352 | } | |
1da177e4 | 353 | |
6fd5dd58 AL |
354 | static void lm85_write_value(struct i2c_client *client, u8 reg, int value) |
355 | { | |
356 | switch (reg) { | |
357 | case LM85_REG_FAN(0): /* Write WORD data */ | |
358 | case LM85_REG_FAN(1): | |
359 | case LM85_REG_FAN(2): | |
360 | case LM85_REG_FAN(3): | |
361 | case LM85_REG_FAN_MIN(0): | |
362 | case LM85_REG_FAN_MIN(1): | |
363 | case LM85_REG_FAN_MIN(2): | |
364 | case LM85_REG_FAN_MIN(3): | |
365 | /* NOTE: ALARM is read only, so not included here */ | |
366 | i2c_smbus_write_byte_data(client, reg, value & 0xff); | |
367 | i2c_smbus_write_byte_data(client, reg + 1, value >> 8); | |
368 | break; | |
369 | default: /* Write BYTE data */ | |
370 | i2c_smbus_write_byte_data(client, reg, value); | |
371 | break; | |
372 | } | |
373 | } | |
67712d01 | 374 | |
6fd5dd58 AL |
375 | static struct lm85_data *lm85_update_device(struct device *dev) |
376 | { | |
746f6884 AL |
377 | struct lm85_data *data = dev_get_drvdata(dev); |
378 | struct i2c_client *client = data->client; | |
6fd5dd58 AL |
379 | int i; |
380 | ||
381 | mutex_lock(&data->update_lock); | |
382 | ||
383 | if (!data->valid || | |
384 | time_after(jiffies, data->last_reading + LM85_DATA_INTERVAL)) { | |
385 | /* Things that change quickly */ | |
386 | dev_dbg(&client->dev, "Reading sensor values\n"); | |
387 | ||
388 | /* | |
389 | * Have to read extended bits first to "freeze" the | |
390 | * more significant bits that are read later. | |
391 | * There are 2 additional resolution bits per channel and we | |
392 | * have room for 4, so we shift them to the left. | |
393 | */ | |
394 | if (data->type == adm1027 || data->type == adt7463 || | |
395 | data->type == adt7468) { | |
396 | int ext1 = lm85_read_value(client, | |
397 | ADM1027_REG_EXTEND_ADC1); | |
398 | int ext2 = lm85_read_value(client, | |
399 | ADM1027_REG_EXTEND_ADC2); | |
400 | int val = (ext1 << 8) + ext2; | |
401 | ||
402 | for (i = 0; i <= 4; i++) | |
403 | data->in_ext[i] = | |
404 | ((val >> (i * 2)) & 0x03) << 2; | |
405 | ||
406 | for (i = 0; i <= 2; i++) | |
407 | data->temp_ext[i] = | |
408 | (val >> ((i + 4) * 2)) & 0x0c; | |
409 | } | |
410 | ||
411 | data->vid = lm85_read_value(client, LM85_REG_VID); | |
412 | ||
413 | for (i = 0; i <= 3; ++i) { | |
414 | data->in[i] = | |
415 | lm85_read_value(client, LM85_REG_IN(i)); | |
416 | data->fan[i] = | |
417 | lm85_read_value(client, LM85_REG_FAN(i)); | |
418 | } | |
419 | ||
420 | if (!data->has_vid5) | |
421 | data->in[4] = lm85_read_value(client, LM85_REG_IN(4)); | |
422 | ||
423 | if (data->type == adt7468) | |
424 | data->cfg5 = lm85_read_value(client, ADT7468_REG_CFG5); | |
425 | ||
426 | for (i = 0; i <= 2; ++i) { | |
427 | data->temp[i] = | |
428 | lm85_read_value(client, LM85_REG_TEMP(i)); | |
429 | data->pwm[i] = | |
430 | lm85_read_value(client, LM85_REG_PWM(i)); | |
1da177e4 | 431 | |
6fd5dd58 AL |
432 | if (IS_ADT7468_OFF64(data)) |
433 | data->temp[i] -= 64; | |
434 | } | |
435 | ||
436 | data->alarms = lm85_read_value(client, LM85_REG_ALARM1); | |
437 | ||
438 | if (data->type == emc6d100) { | |
439 | /* Three more voltage sensors */ | |
440 | for (i = 5; i <= 7; ++i) { | |
441 | data->in[i] = lm85_read_value(client, | |
442 | EMC6D100_REG_IN(i)); | |
443 | } | |
444 | /* More alarm bits */ | |
445 | data->alarms |= lm85_read_value(client, | |
446 | EMC6D100_REG_ALARM3) << 16; | |
447 | } else if (data->type == emc6d102 || data->type == emc6d103 || | |
448 | data->type == emc6d103s) { | |
449 | /* | |
450 | * Have to read LSB bits after the MSB ones because | |
451 | * the reading of the MSB bits has frozen the | |
452 | * LSBs (backward from the ADM1027). | |
453 | */ | |
454 | int ext1 = lm85_read_value(client, | |
455 | EMC6D102_REG_EXTEND_ADC1); | |
456 | int ext2 = lm85_read_value(client, | |
457 | EMC6D102_REG_EXTEND_ADC2); | |
458 | int ext3 = lm85_read_value(client, | |
459 | EMC6D102_REG_EXTEND_ADC3); | |
460 | int ext4 = lm85_read_value(client, | |
461 | EMC6D102_REG_EXTEND_ADC4); | |
462 | data->in_ext[0] = ext3 & 0x0f; | |
463 | data->in_ext[1] = ext4 & 0x0f; | |
464 | data->in_ext[2] = ext4 >> 4; | |
465 | data->in_ext[3] = ext3 >> 4; | |
466 | data->in_ext[4] = ext2 >> 4; | |
467 | ||
468 | data->temp_ext[0] = ext1 & 0x0f; | |
469 | data->temp_ext[1] = ext2 & 0x0f; | |
470 | data->temp_ext[2] = ext1 >> 4; | |
471 | } | |
472 | ||
473 | data->last_reading = jiffies; | |
474 | } /* last_reading */ | |
475 | ||
476 | if (!data->valid || | |
477 | time_after(jiffies, data->last_config + LM85_CONFIG_INTERVAL)) { | |
478 | /* Things that don't change often */ | |
479 | dev_dbg(&client->dev, "Reading config values\n"); | |
480 | ||
481 | for (i = 0; i <= 3; ++i) { | |
482 | data->in_min[i] = | |
483 | lm85_read_value(client, LM85_REG_IN_MIN(i)); | |
484 | data->in_max[i] = | |
485 | lm85_read_value(client, LM85_REG_IN_MAX(i)); | |
486 | data->fan_min[i] = | |
487 | lm85_read_value(client, LM85_REG_FAN_MIN(i)); | |
488 | } | |
489 | ||
490 | if (!data->has_vid5) { | |
491 | data->in_min[4] = lm85_read_value(client, | |
492 | LM85_REG_IN_MIN(4)); | |
493 | data->in_max[4] = lm85_read_value(client, | |
494 | LM85_REG_IN_MAX(4)); | |
495 | } | |
496 | ||
497 | if (data->type == emc6d100) { | |
498 | for (i = 5; i <= 7; ++i) { | |
499 | data->in_min[i] = lm85_read_value(client, | |
500 | EMC6D100_REG_IN_MIN(i)); | |
501 | data->in_max[i] = lm85_read_value(client, | |
502 | EMC6D100_REG_IN_MAX(i)); | |
503 | } | |
504 | } | |
505 | ||
506 | for (i = 0; i <= 2; ++i) { | |
507 | int val; | |
508 | ||
509 | data->temp_min[i] = | |
510 | lm85_read_value(client, LM85_REG_TEMP_MIN(i)); | |
511 | data->temp_max[i] = | |
512 | lm85_read_value(client, LM85_REG_TEMP_MAX(i)); | |
513 | ||
514 | data->autofan[i].config = | |
515 | lm85_read_value(client, LM85_REG_AFAN_CONFIG(i)); | |
516 | val = lm85_read_value(client, LM85_REG_AFAN_RANGE(i)); | |
517 | data->pwm_freq[i] = val & 0x07; | |
518 | data->zone[i].range = val >> 4; | |
519 | data->autofan[i].min_pwm = | |
520 | lm85_read_value(client, LM85_REG_AFAN_MINPWM(i)); | |
521 | data->zone[i].limit = | |
522 | lm85_read_value(client, LM85_REG_AFAN_LIMIT(i)); | |
523 | data->zone[i].critical = | |
524 | lm85_read_value(client, LM85_REG_AFAN_CRITICAL(i)); | |
525 | ||
526 | if (IS_ADT7468_OFF64(data)) { | |
527 | data->temp_min[i] -= 64; | |
528 | data->temp_max[i] -= 64; | |
529 | data->zone[i].limit -= 64; | |
530 | data->zone[i].critical -= 64; | |
531 | } | |
532 | } | |
533 | ||
534 | if (data->type != emc6d103s) { | |
535 | i = lm85_read_value(client, LM85_REG_AFAN_SPIKE1); | |
536 | data->autofan[0].min_off = (i & 0x20) != 0; | |
537 | data->autofan[1].min_off = (i & 0x40) != 0; | |
538 | data->autofan[2].min_off = (i & 0x80) != 0; | |
539 | ||
540 | i = lm85_read_value(client, LM85_REG_AFAN_HYST1); | |
541 | data->zone[0].hyst = i >> 4; | |
542 | data->zone[1].hyst = i & 0x0f; | |
543 | ||
544 | i = lm85_read_value(client, LM85_REG_AFAN_HYST2); | |
545 | data->zone[2].hyst = i >> 4; | |
546 | } | |
547 | ||
548 | data->last_config = jiffies; | |
549 | } /* last_config */ | |
550 | ||
551 | data->valid = 1; | |
552 | ||
553 | mutex_unlock(&data->update_lock); | |
554 | ||
555 | return data; | |
556 | } | |
1da177e4 LT |
557 | |
558 | /* 4 Fans */ | |
b353a487 JD |
559 | static ssize_t show_fan(struct device *dev, struct device_attribute *attr, |
560 | char *buf) | |
1da177e4 | 561 | { |
b353a487 | 562 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 563 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 564 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr])); |
1da177e4 | 565 | } |
b353a487 JD |
566 | |
567 | static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr, | |
568 | char *buf) | |
1da177e4 | 569 | { |
b353a487 | 570 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 571 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 572 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr])); |
1da177e4 | 573 | } |
b353a487 JD |
574 | |
575 | static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, | |
576 | const char *buf, size_t count) | |
1da177e4 | 577 | { |
b353a487 | 578 | int nr = to_sensor_dev_attr(attr)->index; |
746f6884 AL |
579 | struct lm85_data *data = dev_get_drvdata(dev); |
580 | struct i2c_client *client = data->client; | |
09770b26 GR |
581 | unsigned long val; |
582 | int err; | |
583 | ||
584 | err = kstrtoul(buf, 10, &val); | |
585 | if (err) | |
586 | return err; | |
1da177e4 | 587 | |
9a61bf63 | 588 | mutex_lock(&data->update_lock); |
1da177e4 LT |
589 | data->fan_min[nr] = FAN_TO_REG(val); |
590 | lm85_write_value(client, LM85_REG_FAN_MIN(nr), data->fan_min[nr]); | |
9a61bf63 | 591 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
592 | return count; |
593 | } | |
594 | ||
595 | #define show_fan_offset(offset) \ | |
b353a487 JD |
596 | static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \ |
597 | show_fan, NULL, offset - 1); \ | |
598 | static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ | |
599 | show_fan_min, set_fan_min, offset - 1) | |
1da177e4 LT |
600 | |
601 | show_fan_offset(1); | |
602 | show_fan_offset(2); | |
603 | show_fan_offset(3); | |
604 | show_fan_offset(4); | |
605 | ||
606 | /* vid, vrm, alarms */ | |
607 | ||
d0ed69d5 JL |
608 | static ssize_t cpu0_vid_show(struct device *dev, |
609 | struct device_attribute *attr, char *buf) | |
1da177e4 LT |
610 | { |
611 | struct lm85_data *data = lm85_update_device(dev); | |
9c516ef4 JD |
612 | int vid; |
613 | ||
de248805 | 614 | if (data->has_vid5) { |
9c516ef4 JD |
615 | /* 6-pin VID (VRM 10) */ |
616 | vid = vid_from_reg(data->vid & 0x3f, data->vrm); | |
617 | } else { | |
618 | /* 5-pin VID (VRM 9) */ | |
619 | vid = vid_from_reg(data->vid & 0x1f, data->vrm); | |
620 | } | |
621 | ||
622 | return sprintf(buf, "%d\n", vid); | |
1da177e4 LT |
623 | } |
624 | ||
d0ed69d5 | 625 | static DEVICE_ATTR_RO(cpu0_vid); |
1da177e4 | 626 | |
d0ed69d5 JL |
627 | static ssize_t vrm_show(struct device *dev, struct device_attribute *attr, |
628 | char *buf) | |
1da177e4 | 629 | { |
90d6619a | 630 | struct lm85_data *data = dev_get_drvdata(dev); |
1da177e4 LT |
631 | return sprintf(buf, "%ld\n", (long) data->vrm); |
632 | } | |
633 | ||
d0ed69d5 JL |
634 | static ssize_t vrm_store(struct device *dev, struct device_attribute *attr, |
635 | const char *buf, size_t count) | |
1da177e4 | 636 | { |
8f74efe8 | 637 | struct lm85_data *data = dev_get_drvdata(dev); |
09770b26 GR |
638 | unsigned long val; |
639 | int err; | |
640 | ||
641 | err = kstrtoul(buf, 10, &val); | |
642 | if (err) | |
643 | return err; | |
644 | ||
3248c3b7 GR |
645 | if (val > 255) |
646 | return -EINVAL; | |
647 | ||
09770b26 | 648 | data->vrm = val; |
1da177e4 LT |
649 | return count; |
650 | } | |
651 | ||
d0ed69d5 | 652 | static DEVICE_ATTR_RW(vrm); |
1da177e4 | 653 | |
d0ed69d5 JL |
654 | static ssize_t alarms_show(struct device *dev, struct device_attribute *attr, |
655 | char *buf) | |
1da177e4 LT |
656 | { |
657 | struct lm85_data *data = lm85_update_device(dev); | |
68188ba7 | 658 | return sprintf(buf, "%u\n", data->alarms); |
1da177e4 LT |
659 | } |
660 | ||
d0ed69d5 | 661 | static DEVICE_ATTR_RO(alarms); |
1da177e4 | 662 | |
bf76e9d3 JD |
663 | static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, |
664 | char *buf) | |
665 | { | |
666 | int nr = to_sensor_dev_attr(attr)->index; | |
667 | struct lm85_data *data = lm85_update_device(dev); | |
668 | return sprintf(buf, "%u\n", (data->alarms >> nr) & 1); | |
669 | } | |
670 | ||
671 | static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0); | |
672 | static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1); | |
673 | static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2); | |
674 | static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3); | |
675 | static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8); | |
676 | static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 18); | |
677 | static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 16); | |
678 | static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 17); | |
679 | static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4); | |
680 | static SENSOR_DEVICE_ATTR(temp1_fault, S_IRUGO, show_alarm, NULL, 14); | |
681 | static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5); | |
682 | static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 6); | |
683 | static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_alarm, NULL, 15); | |
684 | static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 10); | |
685 | static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 11); | |
686 | static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 12); | |
687 | static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 13); | |
688 | ||
1da177e4 LT |
689 | /* pwm */ |
690 | ||
b353a487 JD |
691 | static ssize_t show_pwm(struct device *dev, struct device_attribute *attr, |
692 | char *buf) | |
1da177e4 | 693 | { |
b353a487 | 694 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 695 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 696 | return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm[nr])); |
1da177e4 | 697 | } |
b353a487 JD |
698 | |
699 | static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, | |
700 | const char *buf, size_t count) | |
1da177e4 | 701 | { |
b353a487 | 702 | int nr = to_sensor_dev_attr(attr)->index; |
746f6884 AL |
703 | struct lm85_data *data = dev_get_drvdata(dev); |
704 | struct i2c_client *client = data->client; | |
09770b26 GR |
705 | unsigned long val; |
706 | int err; | |
707 | ||
708 | err = kstrtoul(buf, 10, &val); | |
709 | if (err) | |
710 | return err; | |
1da177e4 | 711 | |
9a61bf63 | 712 | mutex_lock(&data->update_lock); |
1da177e4 LT |
713 | data->pwm[nr] = PWM_TO_REG(val); |
714 | lm85_write_value(client, LM85_REG_PWM(nr), data->pwm[nr]); | |
9a61bf63 | 715 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
716 | return count; |
717 | } | |
b353a487 JD |
718 | |
719 | static ssize_t show_pwm_enable(struct device *dev, struct device_attribute | |
720 | *attr, char *buf) | |
1da177e4 | 721 | { |
b353a487 | 722 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 723 | struct lm85_data *data = lm85_update_device(dev); |
4b4df95d | 724 | int pwm_zone, enable; |
1da177e4 LT |
725 | |
726 | pwm_zone = ZONE_FROM_REG(data->autofan[nr].config); | |
4b4df95d JD |
727 | switch (pwm_zone) { |
728 | case -1: /* PWM is always at 100% */ | |
729 | enable = 0; | |
730 | break; | |
731 | case 0: /* PWM is always at 0% */ | |
732 | case -2: /* PWM responds to manual control */ | |
733 | enable = 1; | |
734 | break; | |
735 | default: /* PWM in automatic mode */ | |
736 | enable = 2; | |
737 | } | |
738 | return sprintf(buf, "%d\n", enable); | |
1da177e4 LT |
739 | } |
740 | ||
455f791e JD |
741 | static ssize_t set_pwm_enable(struct device *dev, struct device_attribute |
742 | *attr, const char *buf, size_t count) | |
743 | { | |
744 | int nr = to_sensor_dev_attr(attr)->index; | |
746f6884 AL |
745 | struct lm85_data *data = dev_get_drvdata(dev); |
746 | struct i2c_client *client = data->client; | |
455f791e | 747 | u8 config; |
09770b26 GR |
748 | unsigned long val; |
749 | int err; | |
750 | ||
751 | err = kstrtoul(buf, 10, &val); | |
752 | if (err) | |
753 | return err; | |
455f791e JD |
754 | |
755 | switch (val) { | |
756 | case 0: | |
757 | config = 3; | |
758 | break; | |
759 | case 1: | |
760 | config = 7; | |
761 | break; | |
762 | case 2: | |
09770b26 GR |
763 | /* |
764 | * Here we have to choose arbitrarily one of the 5 possible | |
765 | * configurations; I go for the safest | |
766 | */ | |
455f791e JD |
767 | config = 6; |
768 | break; | |
769 | default: | |
770 | return -EINVAL; | |
771 | } | |
772 | ||
773 | mutex_lock(&data->update_lock); | |
774 | data->autofan[nr].config = lm85_read_value(client, | |
775 | LM85_REG_AFAN_CONFIG(nr)); | |
776 | data->autofan[nr].config = (data->autofan[nr].config & ~0xe0) | |
777 | | (config << 5); | |
778 | lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr), | |
779 | data->autofan[nr].config); | |
780 | mutex_unlock(&data->update_lock); | |
781 | return count; | |
782 | } | |
783 | ||
34e7dc6c JD |
784 | static ssize_t show_pwm_freq(struct device *dev, |
785 | struct device_attribute *attr, char *buf) | |
786 | { | |
787 | int nr = to_sensor_dev_attr(attr)->index; | |
788 | struct lm85_data *data = lm85_update_device(dev); | |
f6c61cff JD |
789 | int freq; |
790 | ||
791 | if (IS_ADT7468_HFPWM(data)) | |
792 | freq = 22500; | |
793 | else | |
794 | freq = FREQ_FROM_REG(data->freq_map, data->pwm_freq[nr]); | |
795 | ||
796 | return sprintf(buf, "%d\n", freq); | |
34e7dc6c JD |
797 | } |
798 | ||
799 | static ssize_t set_pwm_freq(struct device *dev, | |
800 | struct device_attribute *attr, const char *buf, size_t count) | |
801 | { | |
802 | int nr = to_sensor_dev_attr(attr)->index; | |
746f6884 AL |
803 | struct lm85_data *data = dev_get_drvdata(dev); |
804 | struct i2c_client *client = data->client; | |
09770b26 GR |
805 | unsigned long val; |
806 | int err; | |
807 | ||
808 | err = kstrtoul(buf, 10, &val); | |
809 | if (err) | |
810 | return err; | |
34e7dc6c JD |
811 | |
812 | mutex_lock(&data->update_lock); | |
09770b26 GR |
813 | /* |
814 | * The ADT7468 has a special high-frequency PWM output mode, | |
f6c61cff | 815 | * where all PWM outputs are driven by a 22.5 kHz clock. |
09770b26 GR |
816 | * This might confuse the user, but there's not much we can do. |
817 | */ | |
f6c61cff JD |
818 | if (data->type == adt7468 && val >= 11300) { /* High freq. mode */ |
819 | data->cfg5 &= ~ADT7468_HFPWM; | |
820 | lm85_write_value(client, ADT7468_REG_CFG5, data->cfg5); | |
821 | } else { /* Low freq. mode */ | |
0f3721c5 BG |
822 | data->pwm_freq[nr] = FREQ_TO_REG(data->freq_map, |
823 | FREQ_MAP_LEN, val); | |
f6c61cff JD |
824 | lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), |
825 | (data->zone[nr].range << 4) | |
826 | | data->pwm_freq[nr]); | |
827 | if (data->type == adt7468) { | |
828 | data->cfg5 |= ADT7468_HFPWM; | |
829 | lm85_write_value(client, ADT7468_REG_CFG5, data->cfg5); | |
830 | } | |
831 | } | |
34e7dc6c JD |
832 | mutex_unlock(&data->update_lock); |
833 | return count; | |
834 | } | |
835 | ||
1da177e4 | 836 | #define show_pwm_reg(offset) \ |
b353a487 JD |
837 | static SENSOR_DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \ |
838 | show_pwm, set_pwm, offset - 1); \ | |
455f791e | 839 | static SENSOR_DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR, \ |
34e7dc6c JD |
840 | show_pwm_enable, set_pwm_enable, offset - 1); \ |
841 | static SENSOR_DEVICE_ATTR(pwm##offset##_freq, S_IRUGO | S_IWUSR, \ | |
842 | show_pwm_freq, set_pwm_freq, offset - 1) | |
1da177e4 LT |
843 | |
844 | show_pwm_reg(1); | |
845 | show_pwm_reg(2); | |
846 | show_pwm_reg(3); | |
847 | ||
848 | /* Voltages */ | |
849 | ||
b353a487 JD |
850 | static ssize_t show_in(struct device *dev, struct device_attribute *attr, |
851 | char *buf) | |
1da177e4 | 852 | { |
b353a487 | 853 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 854 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a JD |
855 | return sprintf(buf, "%d\n", INSEXT_FROM_REG(nr, data->in[nr], |
856 | data->in_ext[nr])); | |
1da177e4 | 857 | } |
b353a487 | 858 | |
1f44809a | 859 | static ssize_t show_in_min(struct device *dev, struct device_attribute *attr, |
b353a487 | 860 | char *buf) |
1da177e4 | 861 | { |
b353a487 | 862 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 863 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 864 | return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_min[nr])); |
1da177e4 | 865 | } |
b353a487 JD |
866 | |
867 | static ssize_t set_in_min(struct device *dev, struct device_attribute *attr, | |
868 | const char *buf, size_t count) | |
1da177e4 | 869 | { |
b353a487 | 870 | int nr = to_sensor_dev_attr(attr)->index; |
746f6884 AL |
871 | struct lm85_data *data = dev_get_drvdata(dev); |
872 | struct i2c_client *client = data->client; | |
09770b26 GR |
873 | long val; |
874 | int err; | |
875 | ||
876 | err = kstrtol(buf, 10, &val); | |
877 | if (err) | |
878 | return err; | |
1da177e4 | 879 | |
9a61bf63 | 880 | mutex_lock(&data->update_lock); |
1da177e4 LT |
881 | data->in_min[nr] = INS_TO_REG(nr, val); |
882 | lm85_write_value(client, LM85_REG_IN_MIN(nr), data->in_min[nr]); | |
9a61bf63 | 883 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
884 | return count; |
885 | } | |
b353a487 JD |
886 | |
887 | static ssize_t show_in_max(struct device *dev, struct device_attribute *attr, | |
888 | char *buf) | |
1da177e4 | 889 | { |
b353a487 | 890 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 891 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 892 | return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_max[nr])); |
1da177e4 | 893 | } |
b353a487 JD |
894 | |
895 | static ssize_t set_in_max(struct device *dev, struct device_attribute *attr, | |
896 | const char *buf, size_t count) | |
1da177e4 | 897 | { |
b353a487 | 898 | int nr = to_sensor_dev_attr(attr)->index; |
746f6884 AL |
899 | struct lm85_data *data = dev_get_drvdata(dev); |
900 | struct i2c_client *client = data->client; | |
09770b26 GR |
901 | long val; |
902 | int err; | |
903 | ||
904 | err = kstrtol(buf, 10, &val); | |
905 | if (err) | |
906 | return err; | |
1da177e4 | 907 | |
9a61bf63 | 908 | mutex_lock(&data->update_lock); |
1da177e4 LT |
909 | data->in_max[nr] = INS_TO_REG(nr, val); |
910 | lm85_write_value(client, LM85_REG_IN_MAX(nr), data->in_max[nr]); | |
9a61bf63 | 911 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
912 | return count; |
913 | } | |
b353a487 | 914 | |
1da177e4 | 915 | #define show_in_reg(offset) \ |
b353a487 JD |
916 | static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \ |
917 | show_in, NULL, offset); \ | |
918 | static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \ | |
919 | show_in_min, set_in_min, offset); \ | |
920 | static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \ | |
921 | show_in_max, set_in_max, offset) | |
1da177e4 LT |
922 | |
923 | show_in_reg(0); | |
924 | show_in_reg(1); | |
925 | show_in_reg(2); | |
926 | show_in_reg(3); | |
927 | show_in_reg(4); | |
6b9aad2d JD |
928 | show_in_reg(5); |
929 | show_in_reg(6); | |
930 | show_in_reg(7); | |
1da177e4 LT |
931 | |
932 | /* Temps */ | |
933 | ||
b353a487 JD |
934 | static ssize_t show_temp(struct device *dev, struct device_attribute *attr, |
935 | char *buf) | |
1da177e4 | 936 | { |
b353a487 | 937 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 938 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a JD |
939 | return sprintf(buf, "%d\n", TEMPEXT_FROM_REG(data->temp[nr], |
940 | data->temp_ext[nr])); | |
1da177e4 | 941 | } |
b353a487 JD |
942 | |
943 | static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr, | |
944 | char *buf) | |
1da177e4 | 945 | { |
b353a487 | 946 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 947 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 948 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[nr])); |
1da177e4 | 949 | } |
b353a487 JD |
950 | |
951 | static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr, | |
952 | const char *buf, size_t count) | |
1da177e4 | 953 | { |
b353a487 | 954 | int nr = to_sensor_dev_attr(attr)->index; |
746f6884 AL |
955 | struct lm85_data *data = dev_get_drvdata(dev); |
956 | struct i2c_client *client = data->client; | |
09770b26 GR |
957 | long val; |
958 | int err; | |
959 | ||
960 | err = kstrtol(buf, 10, &val); | |
961 | if (err) | |
962 | return err; | |
1da177e4 | 963 | |
79b92f2b DW |
964 | if (IS_ADT7468_OFF64(data)) |
965 | val += 64; | |
966 | ||
9a61bf63 | 967 | mutex_lock(&data->update_lock); |
1da177e4 LT |
968 | data->temp_min[nr] = TEMP_TO_REG(val); |
969 | lm85_write_value(client, LM85_REG_TEMP_MIN(nr), data->temp_min[nr]); | |
9a61bf63 | 970 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
971 | return count; |
972 | } | |
b353a487 JD |
973 | |
974 | static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr, | |
975 | char *buf) | |
1da177e4 | 976 | { |
b353a487 | 977 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 978 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 979 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[nr])); |
1da177e4 | 980 | } |
b353a487 JD |
981 | |
982 | static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, | |
983 | const char *buf, size_t count) | |
1da177e4 | 984 | { |
b353a487 | 985 | int nr = to_sensor_dev_attr(attr)->index; |
746f6884 AL |
986 | struct lm85_data *data = dev_get_drvdata(dev); |
987 | struct i2c_client *client = data->client; | |
09770b26 GR |
988 | long val; |
989 | int err; | |
990 | ||
991 | err = kstrtol(buf, 10, &val); | |
992 | if (err) | |
993 | return err; | |
1da177e4 | 994 | |
79b92f2b DW |
995 | if (IS_ADT7468_OFF64(data)) |
996 | val += 64; | |
997 | ||
9a61bf63 | 998 | mutex_lock(&data->update_lock); |
1da177e4 LT |
999 | data->temp_max[nr] = TEMP_TO_REG(val); |
1000 | lm85_write_value(client, LM85_REG_TEMP_MAX(nr), data->temp_max[nr]); | |
9a61bf63 | 1001 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
1002 | return count; |
1003 | } | |
b353a487 | 1004 | |
1da177e4 | 1005 | #define show_temp_reg(offset) \ |
b353a487 JD |
1006 | static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \ |
1007 | show_temp, NULL, offset - 1); \ | |
1008 | static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \ | |
1009 | show_temp_min, set_temp_min, offset - 1); \ | |
1010 | static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \ | |
1011 | show_temp_max, set_temp_max, offset - 1); | |
1da177e4 LT |
1012 | |
1013 | show_temp_reg(1); | |
1014 | show_temp_reg(2); | |
1015 | show_temp_reg(3); | |
1016 | ||
1017 | ||
1018 | /* Automatic PWM control */ | |
1019 | ||
b353a487 JD |
1020 | static ssize_t show_pwm_auto_channels(struct device *dev, |
1021 | struct device_attribute *attr, char *buf) | |
1da177e4 | 1022 | { |
b353a487 | 1023 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 1024 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 1025 | return sprintf(buf, "%d\n", ZONE_FROM_REG(data->autofan[nr].config)); |
1da177e4 | 1026 | } |
b353a487 JD |
1027 | |
1028 | static ssize_t set_pwm_auto_channels(struct device *dev, | |
1029 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 1030 | { |
b353a487 | 1031 | int nr = to_sensor_dev_attr(attr)->index; |
746f6884 AL |
1032 | struct lm85_data *data = dev_get_drvdata(dev); |
1033 | struct i2c_client *client = data->client; | |
09770b26 GR |
1034 | long val; |
1035 | int err; | |
1036 | ||
1037 | err = kstrtol(buf, 10, &val); | |
1038 | if (err) | |
1039 | return err; | |
1da177e4 | 1040 | |
9a61bf63 | 1041 | mutex_lock(&data->update_lock); |
1da177e4 | 1042 | data->autofan[nr].config = (data->autofan[nr].config & (~0xe0)) |
1f44809a | 1043 | | ZONE_TO_REG(val); |
1da177e4 LT |
1044 | lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr), |
1045 | data->autofan[nr].config); | |
9a61bf63 | 1046 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
1047 | return count; |
1048 | } | |
b353a487 JD |
1049 | |
1050 | static ssize_t show_pwm_auto_pwm_min(struct device *dev, | |
1051 | struct device_attribute *attr, char *buf) | |
1da177e4 | 1052 | { |
b353a487 | 1053 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 1054 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 1055 | return sprintf(buf, "%d\n", PWM_FROM_REG(data->autofan[nr].min_pwm)); |
1da177e4 | 1056 | } |
b353a487 JD |
1057 | |
1058 | static ssize_t set_pwm_auto_pwm_min(struct device *dev, | |
1059 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 1060 | { |
b353a487 | 1061 | int nr = to_sensor_dev_attr(attr)->index; |
746f6884 AL |
1062 | struct lm85_data *data = dev_get_drvdata(dev); |
1063 | struct i2c_client *client = data->client; | |
09770b26 GR |
1064 | unsigned long val; |
1065 | int err; | |
1066 | ||
1067 | err = kstrtoul(buf, 10, &val); | |
1068 | if (err) | |
1069 | return err; | |
1da177e4 | 1070 | |
9a61bf63 | 1071 | mutex_lock(&data->update_lock); |
1da177e4 LT |
1072 | data->autofan[nr].min_pwm = PWM_TO_REG(val); |
1073 | lm85_write_value(client, LM85_REG_AFAN_MINPWM(nr), | |
1074 | data->autofan[nr].min_pwm); | |
9a61bf63 | 1075 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
1076 | return count; |
1077 | } | |
b353a487 JD |
1078 | |
1079 | static ssize_t show_pwm_auto_pwm_minctl(struct device *dev, | |
1080 | struct device_attribute *attr, char *buf) | |
1da177e4 | 1081 | { |
b353a487 | 1082 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 1083 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 1084 | return sprintf(buf, "%d\n", data->autofan[nr].min_off); |
1da177e4 | 1085 | } |
b353a487 JD |
1086 | |
1087 | static ssize_t set_pwm_auto_pwm_minctl(struct device *dev, | |
1088 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 1089 | { |
b353a487 | 1090 | int nr = to_sensor_dev_attr(attr)->index; |
746f6884 AL |
1091 | struct lm85_data *data = dev_get_drvdata(dev); |
1092 | struct i2c_client *client = data->client; | |
7133e56f | 1093 | u8 tmp; |
09770b26 GR |
1094 | long val; |
1095 | int err; | |
1096 | ||
1097 | err = kstrtol(buf, 10, &val); | |
1098 | if (err) | |
1099 | return err; | |
1da177e4 | 1100 | |
9a61bf63 | 1101 | mutex_lock(&data->update_lock); |
1da177e4 | 1102 | data->autofan[nr].min_off = val; |
7133e56f JD |
1103 | tmp = lm85_read_value(client, LM85_REG_AFAN_SPIKE1); |
1104 | tmp &= ~(0x20 << nr); | |
1105 | if (data->autofan[nr].min_off) | |
1106 | tmp |= 0x20 << nr; | |
1107 | lm85_write_value(client, LM85_REG_AFAN_SPIKE1, tmp); | |
9a61bf63 | 1108 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
1109 | return count; |
1110 | } | |
b353a487 | 1111 | |
1da177e4 | 1112 | #define pwm_auto(offset) \ |
b353a487 JD |
1113 | static SENSOR_DEVICE_ATTR(pwm##offset##_auto_channels, \ |
1114 | S_IRUGO | S_IWUSR, show_pwm_auto_channels, \ | |
1115 | set_pwm_auto_channels, offset - 1); \ | |
1116 | static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_min, \ | |
1117 | S_IRUGO | S_IWUSR, show_pwm_auto_pwm_min, \ | |
1118 | set_pwm_auto_pwm_min, offset - 1); \ | |
1119 | static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_minctl, \ | |
1120 | S_IRUGO | S_IWUSR, show_pwm_auto_pwm_minctl, \ | |
34e7dc6c | 1121 | set_pwm_auto_pwm_minctl, offset - 1) |
b353a487 | 1122 | |
1da177e4 LT |
1123 | pwm_auto(1); |
1124 | pwm_auto(2); | |
1125 | pwm_auto(3); | |
1126 | ||
1127 | /* Temperature settings for automatic PWM control */ | |
1128 | ||
b353a487 JD |
1129 | static ssize_t show_temp_auto_temp_off(struct device *dev, |
1130 | struct device_attribute *attr, char *buf) | |
1da177e4 | 1131 | { |
b353a487 | 1132 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 1133 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 1134 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit) - |
1da177e4 LT |
1135 | HYST_FROM_REG(data->zone[nr].hyst)); |
1136 | } | |
b353a487 JD |
1137 | |
1138 | static ssize_t set_temp_auto_temp_off(struct device *dev, | |
1139 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 1140 | { |
b353a487 | 1141 | int nr = to_sensor_dev_attr(attr)->index; |
746f6884 AL |
1142 | struct lm85_data *data = dev_get_drvdata(dev); |
1143 | struct i2c_client *client = data->client; | |
1da177e4 | 1144 | int min; |
09770b26 GR |
1145 | long val; |
1146 | int err; | |
1147 | ||
1148 | err = kstrtol(buf, 10, &val); | |
1149 | if (err) | |
1150 | return err; | |
1da177e4 | 1151 | |
9a61bf63 | 1152 | mutex_lock(&data->update_lock); |
1da177e4 | 1153 | min = TEMP_FROM_REG(data->zone[nr].limit); |
1da177e4 | 1154 | data->zone[nr].hyst = HYST_TO_REG(min - val); |
1f44809a | 1155 | if (nr == 0 || nr == 1) { |
1da177e4 LT |
1156 | lm85_write_value(client, LM85_REG_AFAN_HYST1, |
1157 | (data->zone[0].hyst << 4) | |
1f44809a | 1158 | | data->zone[1].hyst); |
1da177e4 LT |
1159 | } else { |
1160 | lm85_write_value(client, LM85_REG_AFAN_HYST2, | |
1f44809a | 1161 | (data->zone[2].hyst << 4)); |
1da177e4 | 1162 | } |
9a61bf63 | 1163 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
1164 | return count; |
1165 | } | |
b353a487 JD |
1166 | |
1167 | static ssize_t show_temp_auto_temp_min(struct device *dev, | |
1168 | struct device_attribute *attr, char *buf) | |
1da177e4 | 1169 | { |
b353a487 | 1170 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 1171 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 1172 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit)); |
1da177e4 | 1173 | } |
b353a487 JD |
1174 | |
1175 | static ssize_t set_temp_auto_temp_min(struct device *dev, | |
1176 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 1177 | { |
b353a487 | 1178 | int nr = to_sensor_dev_attr(attr)->index; |
746f6884 AL |
1179 | struct lm85_data *data = dev_get_drvdata(dev); |
1180 | struct i2c_client *client = data->client; | |
09770b26 GR |
1181 | long val; |
1182 | int err; | |
1183 | ||
1184 | err = kstrtol(buf, 10, &val); | |
1185 | if (err) | |
1186 | return err; | |
1da177e4 | 1187 | |
9a61bf63 | 1188 | mutex_lock(&data->update_lock); |
1da177e4 LT |
1189 | data->zone[nr].limit = TEMP_TO_REG(val); |
1190 | lm85_write_value(client, LM85_REG_AFAN_LIMIT(nr), | |
1191 | data->zone[nr].limit); | |
1192 | ||
1193 | /* Update temp_auto_max and temp_auto_range */ | |
1194 | data->zone[nr].range = RANGE_TO_REG( | |
1195 | TEMP_FROM_REG(data->zone[nr].max_desired) - | |
1196 | TEMP_FROM_REG(data->zone[nr].limit)); | |
1197 | lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), | |
1198 | ((data->zone[nr].range & 0x0f) << 4) | |
34e7dc6c | 1199 | | (data->pwm_freq[nr] & 0x07)); |
1da177e4 | 1200 | |
9a61bf63 | 1201 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
1202 | return count; |
1203 | } | |
b353a487 JD |
1204 | |
1205 | static ssize_t show_temp_auto_temp_max(struct device *dev, | |
1206 | struct device_attribute *attr, char *buf) | |
1da177e4 | 1207 | { |
b353a487 | 1208 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 1209 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 1210 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit) + |
1da177e4 LT |
1211 | RANGE_FROM_REG(data->zone[nr].range)); |
1212 | } | |
b353a487 JD |
1213 | |
1214 | static ssize_t set_temp_auto_temp_max(struct device *dev, | |
1215 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 1216 | { |
b353a487 | 1217 | int nr = to_sensor_dev_attr(attr)->index; |
746f6884 AL |
1218 | struct lm85_data *data = dev_get_drvdata(dev); |
1219 | struct i2c_client *client = data->client; | |
1da177e4 | 1220 | int min; |
09770b26 GR |
1221 | long val; |
1222 | int err; | |
1223 | ||
1224 | err = kstrtol(buf, 10, &val); | |
1225 | if (err) | |
1226 | return err; | |
1da177e4 | 1227 | |
9a61bf63 | 1228 | mutex_lock(&data->update_lock); |
1da177e4 LT |
1229 | min = TEMP_FROM_REG(data->zone[nr].limit); |
1230 | data->zone[nr].max_desired = TEMP_TO_REG(val); | |
1231 | data->zone[nr].range = RANGE_TO_REG( | |
1232 | val - min); | |
1233 | lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), | |
1234 | ((data->zone[nr].range & 0x0f) << 4) | |
34e7dc6c | 1235 | | (data->pwm_freq[nr] & 0x07)); |
9a61bf63 | 1236 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
1237 | return count; |
1238 | } | |
b353a487 JD |
1239 | |
1240 | static ssize_t show_temp_auto_temp_crit(struct device *dev, | |
1241 | struct device_attribute *attr, char *buf) | |
1da177e4 | 1242 | { |
b353a487 | 1243 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 1244 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 1245 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].critical)); |
1da177e4 | 1246 | } |
b353a487 JD |
1247 | |
1248 | static ssize_t set_temp_auto_temp_crit(struct device *dev, | |
1f44809a | 1249 | struct device_attribute *attr, const char *buf, size_t count) |
1da177e4 | 1250 | { |
b353a487 | 1251 | int nr = to_sensor_dev_attr(attr)->index; |
746f6884 AL |
1252 | struct lm85_data *data = dev_get_drvdata(dev); |
1253 | struct i2c_client *client = data->client; | |
09770b26 GR |
1254 | long val; |
1255 | int err; | |
1256 | ||
1257 | err = kstrtol(buf, 10, &val); | |
1258 | if (err) | |
1259 | return err; | |
1da177e4 | 1260 | |
9a61bf63 | 1261 | mutex_lock(&data->update_lock); |
1da177e4 LT |
1262 | data->zone[nr].critical = TEMP_TO_REG(val); |
1263 | lm85_write_value(client, LM85_REG_AFAN_CRITICAL(nr), | |
1264 | data->zone[nr].critical); | |
9a61bf63 | 1265 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
1266 | return count; |
1267 | } | |
b353a487 | 1268 | |
1da177e4 | 1269 | #define temp_auto(offset) \ |
b353a487 JD |
1270 | static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_off, \ |
1271 | S_IRUGO | S_IWUSR, show_temp_auto_temp_off, \ | |
1272 | set_temp_auto_temp_off, offset - 1); \ | |
1273 | static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_min, \ | |
1274 | S_IRUGO | S_IWUSR, show_temp_auto_temp_min, \ | |
1275 | set_temp_auto_temp_min, offset - 1); \ | |
1276 | static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_max, \ | |
1277 | S_IRUGO | S_IWUSR, show_temp_auto_temp_max, \ | |
1278 | set_temp_auto_temp_max, offset - 1); \ | |
1279 | static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_crit, \ | |
1280 | S_IRUGO | S_IWUSR, show_temp_auto_temp_crit, \ | |
1281 | set_temp_auto_temp_crit, offset - 1); | |
1282 | ||
1da177e4 LT |
1283 | temp_auto(1); |
1284 | temp_auto(2); | |
1285 | temp_auto(3); | |
1286 | ||
0501a381 | 1287 | static struct attribute *lm85_attributes[] = { |
b353a487 JD |
1288 | &sensor_dev_attr_fan1_input.dev_attr.attr, |
1289 | &sensor_dev_attr_fan2_input.dev_attr.attr, | |
1290 | &sensor_dev_attr_fan3_input.dev_attr.attr, | |
1291 | &sensor_dev_attr_fan4_input.dev_attr.attr, | |
1292 | &sensor_dev_attr_fan1_min.dev_attr.attr, | |
1293 | &sensor_dev_attr_fan2_min.dev_attr.attr, | |
1294 | &sensor_dev_attr_fan3_min.dev_attr.attr, | |
1295 | &sensor_dev_attr_fan4_min.dev_attr.attr, | |
bf76e9d3 JD |
1296 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, |
1297 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, | |
1298 | &sensor_dev_attr_fan3_alarm.dev_attr.attr, | |
1299 | &sensor_dev_attr_fan4_alarm.dev_attr.attr, | |
b353a487 JD |
1300 | |
1301 | &sensor_dev_attr_pwm1.dev_attr.attr, | |
1302 | &sensor_dev_attr_pwm2.dev_attr.attr, | |
1303 | &sensor_dev_attr_pwm3.dev_attr.attr, | |
1304 | &sensor_dev_attr_pwm1_enable.dev_attr.attr, | |
1305 | &sensor_dev_attr_pwm2_enable.dev_attr.attr, | |
1306 | &sensor_dev_attr_pwm3_enable.dev_attr.attr, | |
34e7dc6c JD |
1307 | &sensor_dev_attr_pwm1_freq.dev_attr.attr, |
1308 | &sensor_dev_attr_pwm2_freq.dev_attr.attr, | |
1309 | &sensor_dev_attr_pwm3_freq.dev_attr.attr, | |
b353a487 JD |
1310 | |
1311 | &sensor_dev_attr_in0_input.dev_attr.attr, | |
1312 | &sensor_dev_attr_in1_input.dev_attr.attr, | |
1313 | &sensor_dev_attr_in2_input.dev_attr.attr, | |
1314 | &sensor_dev_attr_in3_input.dev_attr.attr, | |
1315 | &sensor_dev_attr_in0_min.dev_attr.attr, | |
1316 | &sensor_dev_attr_in1_min.dev_attr.attr, | |
1317 | &sensor_dev_attr_in2_min.dev_attr.attr, | |
1318 | &sensor_dev_attr_in3_min.dev_attr.attr, | |
1319 | &sensor_dev_attr_in0_max.dev_attr.attr, | |
1320 | &sensor_dev_attr_in1_max.dev_attr.attr, | |
1321 | &sensor_dev_attr_in2_max.dev_attr.attr, | |
1322 | &sensor_dev_attr_in3_max.dev_attr.attr, | |
bf76e9d3 JD |
1323 | &sensor_dev_attr_in0_alarm.dev_attr.attr, |
1324 | &sensor_dev_attr_in1_alarm.dev_attr.attr, | |
1325 | &sensor_dev_attr_in2_alarm.dev_attr.attr, | |
1326 | &sensor_dev_attr_in3_alarm.dev_attr.attr, | |
b353a487 JD |
1327 | |
1328 | &sensor_dev_attr_temp1_input.dev_attr.attr, | |
1329 | &sensor_dev_attr_temp2_input.dev_attr.attr, | |
1330 | &sensor_dev_attr_temp3_input.dev_attr.attr, | |
1331 | &sensor_dev_attr_temp1_min.dev_attr.attr, | |
1332 | &sensor_dev_attr_temp2_min.dev_attr.attr, | |
1333 | &sensor_dev_attr_temp3_min.dev_attr.attr, | |
1334 | &sensor_dev_attr_temp1_max.dev_attr.attr, | |
1335 | &sensor_dev_attr_temp2_max.dev_attr.attr, | |
1336 | &sensor_dev_attr_temp3_max.dev_attr.attr, | |
bf76e9d3 JD |
1337 | &sensor_dev_attr_temp1_alarm.dev_attr.attr, |
1338 | &sensor_dev_attr_temp2_alarm.dev_attr.attr, | |
1339 | &sensor_dev_attr_temp3_alarm.dev_attr.attr, | |
1340 | &sensor_dev_attr_temp1_fault.dev_attr.attr, | |
1341 | &sensor_dev_attr_temp3_fault.dev_attr.attr, | |
b353a487 JD |
1342 | |
1343 | &sensor_dev_attr_pwm1_auto_channels.dev_attr.attr, | |
1344 | &sensor_dev_attr_pwm2_auto_channels.dev_attr.attr, | |
1345 | &sensor_dev_attr_pwm3_auto_channels.dev_attr.attr, | |
1346 | &sensor_dev_attr_pwm1_auto_pwm_min.dev_attr.attr, | |
1347 | &sensor_dev_attr_pwm2_auto_pwm_min.dev_attr.attr, | |
1348 | &sensor_dev_attr_pwm3_auto_pwm_min.dev_attr.attr, | |
b353a487 | 1349 | |
b353a487 JD |
1350 | &sensor_dev_attr_temp1_auto_temp_min.dev_attr.attr, |
1351 | &sensor_dev_attr_temp2_auto_temp_min.dev_attr.attr, | |
1352 | &sensor_dev_attr_temp3_auto_temp_min.dev_attr.attr, | |
1353 | &sensor_dev_attr_temp1_auto_temp_max.dev_attr.attr, | |
1354 | &sensor_dev_attr_temp2_auto_temp_max.dev_attr.attr, | |
1355 | &sensor_dev_attr_temp3_auto_temp_max.dev_attr.attr, | |
1356 | &sensor_dev_attr_temp1_auto_temp_crit.dev_attr.attr, | |
1357 | &sensor_dev_attr_temp2_auto_temp_crit.dev_attr.attr, | |
1358 | &sensor_dev_attr_temp3_auto_temp_crit.dev_attr.attr, | |
1359 | ||
0501a381 MH |
1360 | &dev_attr_vrm.attr, |
1361 | &dev_attr_cpu0_vid.attr, | |
1362 | &dev_attr_alarms.attr, | |
0501a381 MH |
1363 | NULL |
1364 | }; | |
1365 | ||
1366 | static const struct attribute_group lm85_group = { | |
1367 | .attrs = lm85_attributes, | |
1368 | }; | |
1369 | ||
06923f84 GR |
1370 | static struct attribute *lm85_attributes_minctl[] = { |
1371 | &sensor_dev_attr_pwm1_auto_pwm_minctl.dev_attr.attr, | |
1372 | &sensor_dev_attr_pwm2_auto_pwm_minctl.dev_attr.attr, | |
1373 | &sensor_dev_attr_pwm3_auto_pwm_minctl.dev_attr.attr, | |
5f441e22 | 1374 | NULL |
06923f84 GR |
1375 | }; |
1376 | ||
1377 | static const struct attribute_group lm85_group_minctl = { | |
1378 | .attrs = lm85_attributes_minctl, | |
1379 | }; | |
1380 | ||
1381 | static struct attribute *lm85_attributes_temp_off[] = { | |
1382 | &sensor_dev_attr_temp1_auto_temp_off.dev_attr.attr, | |
1383 | &sensor_dev_attr_temp2_auto_temp_off.dev_attr.attr, | |
1384 | &sensor_dev_attr_temp3_auto_temp_off.dev_attr.attr, | |
5f441e22 | 1385 | NULL |
06923f84 GR |
1386 | }; |
1387 | ||
1388 | static const struct attribute_group lm85_group_temp_off = { | |
1389 | .attrs = lm85_attributes_temp_off, | |
1390 | }; | |
1391 | ||
6b9aad2d | 1392 | static struct attribute *lm85_attributes_in4[] = { |
b353a487 JD |
1393 | &sensor_dev_attr_in4_input.dev_attr.attr, |
1394 | &sensor_dev_attr_in4_min.dev_attr.attr, | |
1395 | &sensor_dev_attr_in4_max.dev_attr.attr, | |
bf76e9d3 | 1396 | &sensor_dev_attr_in4_alarm.dev_attr.attr, |
0501a381 MH |
1397 | NULL |
1398 | }; | |
1399 | ||
6b9aad2d JD |
1400 | static const struct attribute_group lm85_group_in4 = { |
1401 | .attrs = lm85_attributes_in4, | |
1402 | }; | |
1403 | ||
1404 | static struct attribute *lm85_attributes_in567[] = { | |
1405 | &sensor_dev_attr_in5_input.dev_attr.attr, | |
1406 | &sensor_dev_attr_in6_input.dev_attr.attr, | |
1407 | &sensor_dev_attr_in7_input.dev_attr.attr, | |
1408 | &sensor_dev_attr_in5_min.dev_attr.attr, | |
1409 | &sensor_dev_attr_in6_min.dev_attr.attr, | |
1410 | &sensor_dev_attr_in7_min.dev_attr.attr, | |
1411 | &sensor_dev_attr_in5_max.dev_attr.attr, | |
1412 | &sensor_dev_attr_in6_max.dev_attr.attr, | |
1413 | &sensor_dev_attr_in7_max.dev_attr.attr, | |
bf76e9d3 JD |
1414 | &sensor_dev_attr_in5_alarm.dev_attr.attr, |
1415 | &sensor_dev_attr_in6_alarm.dev_attr.attr, | |
1416 | &sensor_dev_attr_in7_alarm.dev_attr.attr, | |
6b9aad2d JD |
1417 | NULL |
1418 | }; | |
1419 | ||
1420 | static const struct attribute_group lm85_group_in567 = { | |
1421 | .attrs = lm85_attributes_in567, | |
0501a381 MH |
1422 | }; |
1423 | ||
5f447594 JD |
1424 | static void lm85_init_client(struct i2c_client *client) |
1425 | { | |
1426 | int value; | |
1427 | ||
1428 | /* Start monitoring if needed */ | |
1429 | value = lm85_read_value(client, LM85_REG_CONFIG); | |
1430 | if (!(value & 0x01)) { | |
1431 | dev_info(&client->dev, "Starting monitoring\n"); | |
1432 | lm85_write_value(client, LM85_REG_CONFIG, value | 0x01); | |
1433 | } | |
1434 | ||
1435 | /* Warn about unusual configuration bits */ | |
1436 | if (value & 0x02) | |
1437 | dev_warn(&client->dev, "Device configuration is locked\n"); | |
1438 | if (!(value & 0x04)) | |
1439 | dev_warn(&client->dev, "Device is not ready\n"); | |
1440 | } | |
1441 | ||
5cfaf338 JD |
1442 | static int lm85_is_fake(struct i2c_client *client) |
1443 | { | |
1444 | /* | |
1445 | * Differenciate between real LM96000 and Winbond WPCD377I. The latter | |
1446 | * emulate the former except that it has no hardware monitoring function | |
1447 | * so the readings are always 0. | |
1448 | */ | |
1449 | int i; | |
1450 | u8 in_temp, fan; | |
1451 | ||
1452 | for (i = 0; i < 8; i++) { | |
1453 | in_temp = i2c_smbus_read_byte_data(client, 0x20 + i); | |
1454 | fan = i2c_smbus_read_byte_data(client, 0x28 + i); | |
1455 | if (in_temp != 0x00 || fan != 0xff) | |
1456 | return 0; | |
1457 | } | |
1458 | ||
1459 | return 1; | |
1460 | } | |
1461 | ||
67712d01 | 1462 | /* Return 0 if detection is successful, -ENODEV otherwise */ |
310ec792 | 1463 | static int lm85_detect(struct i2c_client *client, struct i2c_board_info *info) |
1da177e4 | 1464 | { |
67712d01 JD |
1465 | struct i2c_adapter *adapter = client->adapter; |
1466 | int address = client->addr; | |
590e8534 | 1467 | const char *type_name = NULL; |
d42a2eb5 | 1468 | int company, verstep; |
1da177e4 | 1469 | |
e89e22b2 | 1470 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { |
1da177e4 | 1471 | /* We need to be able to do byte I/O */ |
67712d01 | 1472 | return -ENODEV; |
1f44809a | 1473 | } |
1da177e4 | 1474 | |
d42a2eb5 JD |
1475 | /* Determine the chip type */ |
1476 | company = lm85_read_value(client, LM85_REG_COMPANY); | |
1477 | verstep = lm85_read_value(client, LM85_REG_VERSTEP); | |
1478 | ||
b55f3757 GR |
1479 | dev_dbg(&adapter->dev, |
1480 | "Detecting device at 0x%02x with COMPANY: 0x%02x and VERSTEP: 0x%02x\n", | |
d42a2eb5 JD |
1481 | address, company, verstep); |
1482 | ||
d42a2eb5 JD |
1483 | if (company == LM85_COMPANY_NATIONAL) { |
1484 | switch (verstep) { | |
1485 | case LM85_VERSTEP_LM85C: | |
1486 | type_name = "lm85c"; | |
1487 | break; | |
1488 | case LM85_VERSTEP_LM85B: | |
1489 | type_name = "lm85b"; | |
1490 | break; | |
1491 | case LM85_VERSTEP_LM96000_1: | |
1492 | case LM85_VERSTEP_LM96000_2: | |
1493 | /* Check for Winbond WPCD377I */ | |
1494 | if (lm85_is_fake(client)) { | |
1495 | dev_dbg(&adapter->dev, | |
1496 | "Found Winbond WPCD377I, ignoring\n"); | |
1497 | return -ENODEV; | |
69fc1feb | 1498 | } |
590e8534 | 1499 | type_name = "lm85"; |
d42a2eb5 JD |
1500 | break; |
1501 | } | |
1502 | } else if (company == LM85_COMPANY_ANALOG_DEV) { | |
1503 | switch (verstep) { | |
1504 | case LM85_VERSTEP_ADM1027: | |
1505 | type_name = "adm1027"; | |
1506 | break; | |
1507 | case LM85_VERSTEP_ADT7463: | |
1508 | case LM85_VERSTEP_ADT7463C: | |
1509 | type_name = "adt7463"; | |
1510 | break; | |
1511 | case LM85_VERSTEP_ADT7468_1: | |
1512 | case LM85_VERSTEP_ADT7468_2: | |
1513 | type_name = "adt7468"; | |
1514 | break; | |
1da177e4 | 1515 | } |
d42a2eb5 JD |
1516 | } else if (company == LM85_COMPANY_SMSC) { |
1517 | switch (verstep) { | |
1518 | case LM85_VERSTEP_EMC6D100_A0: | |
1519 | case LM85_VERSTEP_EMC6D100_A1: | |
1520 | /* Note: we can't tell a '100 from a '101 */ | |
1521 | type_name = "emc6d100"; | |
1522 | break; | |
1523 | case LM85_VERSTEP_EMC6D102: | |
1524 | type_name = "emc6d102"; | |
1525 | break; | |
f065a93e JB |
1526 | case LM85_VERSTEP_EMC6D103_A0: |
1527 | case LM85_VERSTEP_EMC6D103_A1: | |
1528 | type_name = "emc6d103"; | |
1529 | break; | |
f065a93e JB |
1530 | case LM85_VERSTEP_EMC6D103S: |
1531 | type_name = "emc6d103s"; | |
1532 | break; | |
d42a2eb5 | 1533 | } |
1da177e4 LT |
1534 | } |
1535 | ||
590e8534 JD |
1536 | if (!type_name) |
1537 | return -ENODEV; | |
1538 | ||
67712d01 JD |
1539 | strlcpy(info->type, type_name, I2C_NAME_SIZE); |
1540 | ||
1541 | return 0; | |
1542 | } | |
1da177e4 | 1543 | |
746f6884 | 1544 | static int lm85_probe(struct i2c_client *client, const struct i2c_device_id *id) |
67712d01 | 1545 | { |
746f6884 AL |
1546 | struct device *dev = &client->dev; |
1547 | struct device *hwmon_dev; | |
67712d01 | 1548 | struct lm85_data *data; |
746f6884 | 1549 | int idx = 0; |
67712d01 | 1550 | |
746f6884 | 1551 | data = devm_kzalloc(dev, sizeof(struct lm85_data), GFP_KERNEL); |
67712d01 JD |
1552 | if (!data) |
1553 | return -ENOMEM; | |
1554 | ||
746f6884 | 1555 | data->client = client; |
00c0f9d3 JMC |
1556 | if (client->dev.of_node) |
1557 | data->type = (enum chips)of_device_get_match_data(&client->dev); | |
1558 | else | |
1559 | data->type = id->driver_data; | |
9a61bf63 | 1560 | mutex_init(&data->update_lock); |
1da177e4 | 1561 | |
67712d01 JD |
1562 | /* Fill in the chip specific driver values */ |
1563 | switch (data->type) { | |
1564 | case adm1027: | |
1565 | case adt7463: | |
fa7a5797 | 1566 | case adt7468: |
67712d01 JD |
1567 | case emc6d100: |
1568 | case emc6d102: | |
f065a93e | 1569 | case emc6d103: |
06923f84 | 1570 | case emc6d103s: |
67712d01 JD |
1571 | data->freq_map = adm1027_freq_map; |
1572 | break; | |
1573 | default: | |
1574 | data->freq_map = lm85_freq_map; | |
1575 | } | |
1da177e4 LT |
1576 | |
1577 | /* Set the VRM version */ | |
303760b4 | 1578 | data->vrm = vid_which_vrm(); |
1da177e4 LT |
1579 | |
1580 | /* Initialize the LM85 chip */ | |
e89e22b2 | 1581 | lm85_init_client(client); |
1da177e4 | 1582 | |
746f6884 AL |
1583 | /* sysfs hooks */ |
1584 | data->groups[idx++] = &lm85_group; | |
1da177e4 | 1585 | |
06923f84 GR |
1586 | /* minctl and temp_off exist on all chips except emc6d103s */ |
1587 | if (data->type != emc6d103s) { | |
746f6884 AL |
1588 | data->groups[idx++] = &lm85_group_minctl; |
1589 | data->groups[idx++] = &lm85_group_temp_off; | |
06923f84 GR |
1590 | } |
1591 | ||
09770b26 GR |
1592 | /* |
1593 | * The ADT7463/68 have an optional VRM 10 mode where pin 21 is used | |
1594 | * as a sixth digital VID input rather than an analog input. | |
1595 | */ | |
de248805 GR |
1596 | if (data->type == adt7463 || data->type == adt7468) { |
1597 | u8 vid = lm85_read_value(client, LM85_REG_VID); | |
1598 | if (vid & 0x80) | |
1599 | data->has_vid5 = true; | |
1600 | } | |
1601 | ||
746f6884 AL |
1602 | if (!data->has_vid5) |
1603 | data->groups[idx++] = &lm85_group_in4; | |
6b9aad2d JD |
1604 | |
1605 | /* The EMC6D100 has 3 additional voltage inputs */ | |
746f6884 AL |
1606 | if (data->type == emc6d100) |
1607 | data->groups[idx++] = &lm85_group_in567; | |
1da177e4 | 1608 | |
746f6884 AL |
1609 | hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, |
1610 | data, data->groups); | |
1611 | return PTR_ERR_OR_ZERO(hwmon_dev); | |
1da177e4 LT |
1612 | } |
1613 | ||
6fd5dd58 AL |
1614 | static const struct i2c_device_id lm85_id[] = { |
1615 | { "adm1027", adm1027 }, | |
1616 | { "adt7463", adt7463 }, | |
1617 | { "adt7468", adt7468 }, | |
1618 | { "lm85", lm85 }, | |
1619 | { "lm85b", lm85 }, | |
1620 | { "lm85c", lm85 }, | |
1621 | { "emc6d100", emc6d100 }, | |
1622 | { "emc6d101", emc6d100 }, | |
1623 | { "emc6d102", emc6d102 }, | |
1624 | { "emc6d103", emc6d103 }, | |
1625 | { "emc6d103s", emc6d103s }, | |
1626 | { } | |
1627 | }; | |
1628 | MODULE_DEVICE_TABLE(i2c, lm85_id); | |
1da177e4 | 1629 | |
00c0f9d3 JMC |
1630 | static const struct of_device_id lm85_of_match[] = { |
1631 | { | |
1632 | .compatible = "adi,adm1027", | |
1633 | .data = (void *)adm1027 | |
1634 | }, | |
1635 | { | |
1636 | .compatible = "adi,adt7463", | |
1637 | .data = (void *)adt7463 | |
1638 | }, | |
1639 | { | |
1640 | .compatible = "adi,adt7468", | |
1641 | .data = (void *)adt7468 | |
1642 | }, | |
1643 | { | |
1644 | .compatible = "national,lm85", | |
1645 | .data = (void *)lm85 | |
1646 | }, | |
1647 | { | |
1648 | .compatible = "national,lm85b", | |
1649 | .data = (void *)lm85 | |
1650 | }, | |
1651 | { | |
1652 | .compatible = "national,lm85c", | |
1653 | .data = (void *)lm85 | |
1654 | }, | |
1655 | { | |
1656 | .compatible = "smsc,emc6d100", | |
1657 | .data = (void *)emc6d100 | |
1658 | }, | |
1659 | { | |
1660 | .compatible = "smsc,emc6d101", | |
1661 | .data = (void *)emc6d100 | |
1662 | }, | |
1663 | { | |
1664 | .compatible = "smsc,emc6d102", | |
1665 | .data = (void *)emc6d102 | |
1666 | }, | |
1667 | { | |
1668 | .compatible = "smsc,emc6d103", | |
1669 | .data = (void *)emc6d103 | |
1670 | }, | |
1671 | { | |
1672 | .compatible = "smsc,emc6d103s", | |
1673 | .data = (void *)emc6d103s | |
1674 | }, | |
1675 | { }, | |
1676 | }; | |
1677 | MODULE_DEVICE_TABLE(of, lm85_of_match); | |
1678 | ||
6fd5dd58 AL |
1679 | static struct i2c_driver lm85_driver = { |
1680 | .class = I2C_CLASS_HWMON, | |
1681 | .driver = { | |
1682 | .name = "lm85", | |
00c0f9d3 | 1683 | .of_match_table = of_match_ptr(lm85_of_match), |
6fd5dd58 AL |
1684 | }, |
1685 | .probe = lm85_probe, | |
6fd5dd58 AL |
1686 | .id_table = lm85_id, |
1687 | .detect = lm85_detect, | |
1688 | .address_list = normal_i2c, | |
1689 | }; | |
1da177e4 | 1690 | |
f0967eea | 1691 | module_i2c_driver(lm85_driver); |
1da177e4 | 1692 | |
1da177e4 | 1693 | MODULE_LICENSE("GPL"); |
1f44809a JD |
1694 | MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, " |
1695 | "Margit Schubert-While <margitsw@t-online.de>, " | |
e89e22b2 | 1696 | "Justin Thiessen <jthiessen@penguincomputing.com>"); |
1da177e4 | 1697 | MODULE_DESCRIPTION("LM85-B, LM85-C driver"); |