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Merge tag 'nfs-for-5.2-1' of git://git.linux-nfs.org/projects/anna/linux-nfs
[mirror_ubuntu-jammy-kernel.git] / drivers / hwmon / adm1026.c
1 /*
2 * adm1026.c - Part of lm_sensors, Linux kernel modules for hardware
3 * monitoring
4 * Copyright (C) 2002, 2003 Philip Pokorny <ppokorny@penguincomputing.com>
5 * Copyright (C) 2004 Justin Thiessen <jthiessen@penguincomputing.com>
6 *
7 * Chip details at:
8 *
9 * <http://www.onsemi.com/PowerSolutions/product.do?id=ADM1026>
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 */
25
26 #include <linux/module.h>
27 #include <linux/init.h>
28 #include <linux/slab.h>
29 #include <linux/jiffies.h>
30 #include <linux/i2c.h>
31 #include <linux/hwmon.h>
32 #include <linux/hwmon-sysfs.h>
33 #include <linux/hwmon-vid.h>
34 #include <linux/err.h>
35 #include <linux/mutex.h>
36
37 /* Addresses to scan */
38 static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
39
40 static int gpio_input[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1,
41 -1, -1, -1, -1, -1, -1, -1, -1 };
42 static int gpio_output[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1,
43 -1, -1, -1, -1, -1, -1, -1, -1 };
44 static int gpio_inverted[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1,
45 -1, -1, -1, -1, -1, -1, -1, -1 };
46 static int gpio_normal[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1,
47 -1, -1, -1, -1, -1, -1, -1, -1 };
48 static int gpio_fan[8] = { -1, -1, -1, -1, -1, -1, -1, -1 };
49 module_param_array(gpio_input, int, NULL, 0);
50 MODULE_PARM_DESC(gpio_input, "List of GPIO pins (0-16) to program as inputs");
51 module_param_array(gpio_output, int, NULL, 0);
52 MODULE_PARM_DESC(gpio_output,
53 "List of GPIO pins (0-16) to program as outputs");
54 module_param_array(gpio_inverted, int, NULL, 0);
55 MODULE_PARM_DESC(gpio_inverted,
56 "List of GPIO pins (0-16) to program as inverted");
57 module_param_array(gpio_normal, int, NULL, 0);
58 MODULE_PARM_DESC(gpio_normal,
59 "List of GPIO pins (0-16) to program as normal/non-inverted");
60 module_param_array(gpio_fan, int, NULL, 0);
61 MODULE_PARM_DESC(gpio_fan, "List of GPIO pins (0-7) to program as fan tachs");
62
63 /* Many ADM1026 constants specified below */
64
65 /* The ADM1026 registers */
66 #define ADM1026_REG_CONFIG1 0x00
67 #define CFG1_MONITOR 0x01
68 #define CFG1_INT_ENABLE 0x02
69 #define CFG1_INT_CLEAR 0x04
70 #define CFG1_AIN8_9 0x08
71 #define CFG1_THERM_HOT 0x10
72 #define CFG1_DAC_AFC 0x20
73 #define CFG1_PWM_AFC 0x40
74 #define CFG1_RESET 0x80
75
76 #define ADM1026_REG_CONFIG2 0x01
77 /* CONFIG2 controls FAN0/GPIO0 through FAN7/GPIO7 */
78
79 #define ADM1026_REG_CONFIG3 0x07
80 #define CFG3_GPIO16_ENABLE 0x01
81 #define CFG3_CI_CLEAR 0x02
82 #define CFG3_VREF_250 0x04
83 #define CFG3_GPIO16_DIR 0x40
84 #define CFG3_GPIO16_POL 0x80
85
86 #define ADM1026_REG_E2CONFIG 0x13
87 #define E2CFG_READ 0x01
88 #define E2CFG_WRITE 0x02
89 #define E2CFG_ERASE 0x04
90 #define E2CFG_ROM 0x08
91 #define E2CFG_CLK_EXT 0x80
92
93 /*
94 * There are 10 general analog inputs and 7 dedicated inputs
95 * They are:
96 * 0 - 9 = AIN0 - AIN9
97 * 10 = Vbat
98 * 11 = 3.3V Standby
99 * 12 = 3.3V Main
100 * 13 = +5V
101 * 14 = Vccp (CPU core voltage)
102 * 15 = +12V
103 * 16 = -12V
104 */
105 static u16 ADM1026_REG_IN[] = {
106 0x30, 0x31, 0x32, 0x33, 0x34, 0x35,
107 0x36, 0x37, 0x27, 0x29, 0x26, 0x2a,
108 0x2b, 0x2c, 0x2d, 0x2e, 0x2f
109 };
110 static u16 ADM1026_REG_IN_MIN[] = {
111 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d,
112 0x5e, 0x5f, 0x6d, 0x49, 0x6b, 0x4a,
113 0x4b, 0x4c, 0x4d, 0x4e, 0x4f
114 };
115 static u16 ADM1026_REG_IN_MAX[] = {
116 0x50, 0x51, 0x52, 0x53, 0x54, 0x55,
117 0x56, 0x57, 0x6c, 0x41, 0x6a, 0x42,
118 0x43, 0x44, 0x45, 0x46, 0x47
119 };
120
121 /*
122 * Temperatures are:
123 * 0 - Internal
124 * 1 - External 1
125 * 2 - External 2
126 */
127 static u16 ADM1026_REG_TEMP[] = { 0x1f, 0x28, 0x29 };
128 static u16 ADM1026_REG_TEMP_MIN[] = { 0x69, 0x48, 0x49 };
129 static u16 ADM1026_REG_TEMP_MAX[] = { 0x68, 0x40, 0x41 };
130 static u16 ADM1026_REG_TEMP_TMIN[] = { 0x10, 0x11, 0x12 };
131 static u16 ADM1026_REG_TEMP_THERM[] = { 0x0d, 0x0e, 0x0f };
132 static u16 ADM1026_REG_TEMP_OFFSET[] = { 0x1e, 0x6e, 0x6f };
133
134 #define ADM1026_REG_FAN(nr) (0x38 + (nr))
135 #define ADM1026_REG_FAN_MIN(nr) (0x60 + (nr))
136 #define ADM1026_REG_FAN_DIV_0_3 0x02
137 #define ADM1026_REG_FAN_DIV_4_7 0x03
138
139 #define ADM1026_REG_DAC 0x04
140 #define ADM1026_REG_PWM 0x05
141
142 #define ADM1026_REG_GPIO_CFG_0_3 0x08
143 #define ADM1026_REG_GPIO_CFG_4_7 0x09
144 #define ADM1026_REG_GPIO_CFG_8_11 0x0a
145 #define ADM1026_REG_GPIO_CFG_12_15 0x0b
146 /* CFG_16 in REG_CFG3 */
147 #define ADM1026_REG_GPIO_STATUS_0_7 0x24
148 #define ADM1026_REG_GPIO_STATUS_8_15 0x25
149 /* STATUS_16 in REG_STATUS4 */
150 #define ADM1026_REG_GPIO_MASK_0_7 0x1c
151 #define ADM1026_REG_GPIO_MASK_8_15 0x1d
152 /* MASK_16 in REG_MASK4 */
153
154 #define ADM1026_REG_COMPANY 0x16
155 #define ADM1026_REG_VERSTEP 0x17
156 /* These are the recognized values for the above regs */
157 #define ADM1026_COMPANY_ANALOG_DEV 0x41
158 #define ADM1026_VERSTEP_GENERIC 0x40
159 #define ADM1026_VERSTEP_ADM1026 0x44
160
161 #define ADM1026_REG_MASK1 0x18
162 #define ADM1026_REG_MASK2 0x19
163 #define ADM1026_REG_MASK3 0x1a
164 #define ADM1026_REG_MASK4 0x1b
165
166 #define ADM1026_REG_STATUS1 0x20
167 #define ADM1026_REG_STATUS2 0x21
168 #define ADM1026_REG_STATUS3 0x22
169 #define ADM1026_REG_STATUS4 0x23
170
171 #define ADM1026_FAN_ACTIVATION_TEMP_HYST -6
172 #define ADM1026_FAN_CONTROL_TEMP_RANGE 20
173 #define ADM1026_PWM_MAX 255
174
175 /*
176 * Conversions. Rounding and limit checking is only done on the TO_REG
177 * variants. Note that you should be a bit careful with which arguments
178 * these macros are called: arguments may be evaluated more than once.
179 */
180
181 /*
182 * IN are scaled according to built-in resistors. These are the
183 * voltages corresponding to 3/4 of full scale (192 or 0xc0)
184 * NOTE: The -12V input needs an additional factor to account
185 * for the Vref pullup resistor.
186 * NEG12_OFFSET = SCALE * Vref / V-192 - Vref
187 * = 13875 * 2.50 / 1.875 - 2500
188 * = 16000
189 *
190 * The values in this table are based on Table II, page 15 of the
191 * datasheet.
192 */
193 static int adm1026_scaling[] = { /* .001 Volts */
194 2250, 2250, 2250, 2250, 2250, 2250,
195 1875, 1875, 1875, 1875, 3000, 3330,
196 3330, 4995, 2250, 12000, 13875
197 };
198 #define NEG12_OFFSET 16000
199 #define SCALE(val, from, to) (((val)*(to) + ((from)/2))/(from))
200 #define INS_TO_REG(n, val) \
201 SCALE(clamp_val(val, 0, 255 * adm1026_scaling[n] / 192), \
202 adm1026_scaling[n], 192)
203 #define INS_FROM_REG(n, val) (SCALE(val, 192, adm1026_scaling[n]))
204
205 /*
206 * FAN speed is measured using 22.5kHz clock and counts for 2 pulses
207 * and we assume a 2 pulse-per-rev fan tach signal
208 * 22500 kHz * 60 (sec/min) * 2 (pulse) / 2 (pulse/rev) == 1350000
209 */
210 #define FAN_TO_REG(val, div) ((val) <= 0 ? 0xff : \
211 clamp_val(1350000 / ((val) * (div)), \
212 1, 254))
213 #define FAN_FROM_REG(val, div) ((val) == 0 ? -1 : (val) == 0xff ? 0 : \
214 1350000 / ((val) * (div)))
215 #define DIV_FROM_REG(val) (1 << (val))
216 #define DIV_TO_REG(val) ((val) >= 8 ? 3 : (val) >= 4 ? 2 : (val) >= 2 ? 1 : 0)
217
218 /* Temperature is reported in 1 degC increments */
219 #define TEMP_TO_REG(val) DIV_ROUND_CLOSEST(clamp_val(val, -128000, 127000), \
220 1000)
221 #define TEMP_FROM_REG(val) ((val) * 1000)
222 #define OFFSET_TO_REG(val) DIV_ROUND_CLOSEST(clamp_val(val, -128000, 127000), \
223 1000)
224 #define OFFSET_FROM_REG(val) ((val) * 1000)
225
226 #define PWM_TO_REG(val) (clamp_val(val, 0, 255))
227 #define PWM_FROM_REG(val) (val)
228
229 #define PWM_MIN_TO_REG(val) ((val) & 0xf0)
230 #define PWM_MIN_FROM_REG(val) (((val) & 0xf0) + ((val) >> 4))
231
232 /*
233 * Analog output is a voltage, and scaled to millivolts. The datasheet
234 * indicates that the DAC could be used to drive the fans, but in our
235 * example board (Arima HDAMA) it isn't connected to the fans at all.
236 */
237 #define DAC_TO_REG(val) DIV_ROUND_CLOSEST(clamp_val(val, 0, 2500) * 255, \
238 2500)
239 #define DAC_FROM_REG(val) (((val) * 2500) / 255)
240
241 /*
242 * Chip sampling rates
243 *
244 * Some sensors are not updated more frequently than once per second
245 * so it doesn't make sense to read them more often than that.
246 * We cache the results and return the saved data if the driver
247 * is called again before a second has elapsed.
248 *
249 * Also, there is significant configuration data for this chip
250 * So, we keep the config data up to date in the cache
251 * when it is written and only sample it once every 5 *minutes*
252 */
253 #define ADM1026_DATA_INTERVAL (1 * HZ)
254 #define ADM1026_CONFIG_INTERVAL (5 * 60 * HZ)
255
256 /*
257 * We allow for multiple chips in a single system.
258 *
259 * For each registered ADM1026, we need to keep state information
260 * at client->data. The adm1026_data structure is dynamically
261 * allocated, when a new client structure is allocated.
262 */
263
264 struct pwm_data {
265 u8 pwm;
266 u8 enable;
267 u8 auto_pwm_min;
268 };
269
270 struct adm1026_data {
271 struct i2c_client *client;
272 const struct attribute_group *groups[3];
273
274 struct mutex update_lock;
275 int valid; /* !=0 if following fields are valid */
276 unsigned long last_reading; /* In jiffies */
277 unsigned long last_config; /* In jiffies */
278
279 u8 in[17]; /* Register value */
280 u8 in_max[17]; /* Register value */
281 u8 in_min[17]; /* Register value */
282 s8 temp[3]; /* Register value */
283 s8 temp_min[3]; /* Register value */
284 s8 temp_max[3]; /* Register value */
285 s8 temp_tmin[3]; /* Register value */
286 s8 temp_crit[3]; /* Register value */
287 s8 temp_offset[3]; /* Register value */
288 u8 fan[8]; /* Register value */
289 u8 fan_min[8]; /* Register value */
290 u8 fan_div[8]; /* Decoded value */
291 struct pwm_data pwm1; /* Pwm control values */
292 u8 vrm; /* VRM version */
293 u8 analog_out; /* Register value (DAC) */
294 long alarms; /* Register encoding, combined */
295 long alarm_mask; /* Register encoding, combined */
296 long gpio; /* Register encoding, combined */
297 long gpio_mask; /* Register encoding, combined */
298 u8 gpio_config[17]; /* Decoded value */
299 u8 config1; /* Register value */
300 u8 config2; /* Register value */
301 u8 config3; /* Register value */
302 };
303
304 static int adm1026_read_value(struct i2c_client *client, u8 reg)
305 {
306 int res;
307
308 if (reg < 0x80) {
309 /* "RAM" locations */
310 res = i2c_smbus_read_byte_data(client, reg) & 0xff;
311 } else {
312 /* EEPROM, do nothing */
313 res = 0;
314 }
315 return res;
316 }
317
318 static int adm1026_write_value(struct i2c_client *client, u8 reg, int value)
319 {
320 int res;
321
322 if (reg < 0x80) {
323 /* "RAM" locations */
324 res = i2c_smbus_write_byte_data(client, reg, value);
325 } else {
326 /* EEPROM, do nothing */
327 res = 0;
328 }
329 return res;
330 }
331
332 static struct adm1026_data *adm1026_update_device(struct device *dev)
333 {
334 struct adm1026_data *data = dev_get_drvdata(dev);
335 struct i2c_client *client = data->client;
336 int i;
337 long value, alarms, gpio;
338
339 mutex_lock(&data->update_lock);
340 if (!data->valid
341 || time_after(jiffies,
342 data->last_reading + ADM1026_DATA_INTERVAL)) {
343 /* Things that change quickly */
344 dev_dbg(&client->dev, "Reading sensor values\n");
345 for (i = 0; i <= 16; ++i) {
346 data->in[i] =
347 adm1026_read_value(client, ADM1026_REG_IN[i]);
348 }
349
350 for (i = 0; i <= 7; ++i) {
351 data->fan[i] =
352 adm1026_read_value(client, ADM1026_REG_FAN(i));
353 }
354
355 for (i = 0; i <= 2; ++i) {
356 /*
357 * NOTE: temp[] is s8 and we assume 2's complement
358 * "conversion" in the assignment
359 */
360 data->temp[i] =
361 adm1026_read_value(client, ADM1026_REG_TEMP[i]);
362 }
363
364 data->pwm1.pwm = adm1026_read_value(client,
365 ADM1026_REG_PWM);
366 data->analog_out = adm1026_read_value(client,
367 ADM1026_REG_DAC);
368 /* GPIO16 is MSbit of alarms, move it to gpio */
369 alarms = adm1026_read_value(client, ADM1026_REG_STATUS4);
370 gpio = alarms & 0x80 ? 0x0100 : 0; /* GPIO16 */
371 alarms &= 0x7f;
372 alarms <<= 8;
373 alarms |= adm1026_read_value(client, ADM1026_REG_STATUS3);
374 alarms <<= 8;
375 alarms |= adm1026_read_value(client, ADM1026_REG_STATUS2);
376 alarms <<= 8;
377 alarms |= adm1026_read_value(client, ADM1026_REG_STATUS1);
378 data->alarms = alarms;
379
380 /* Read the GPIO values */
381 gpio |= adm1026_read_value(client,
382 ADM1026_REG_GPIO_STATUS_8_15);
383 gpio <<= 8;
384 gpio |= adm1026_read_value(client,
385 ADM1026_REG_GPIO_STATUS_0_7);
386 data->gpio = gpio;
387
388 data->last_reading = jiffies;
389 } /* last_reading */
390
391 if (!data->valid ||
392 time_after(jiffies, data->last_config + ADM1026_CONFIG_INTERVAL)) {
393 /* Things that don't change often */
394 dev_dbg(&client->dev, "Reading config values\n");
395 for (i = 0; i <= 16; ++i) {
396 data->in_min[i] = adm1026_read_value(client,
397 ADM1026_REG_IN_MIN[i]);
398 data->in_max[i] = adm1026_read_value(client,
399 ADM1026_REG_IN_MAX[i]);
400 }
401
402 value = adm1026_read_value(client, ADM1026_REG_FAN_DIV_0_3)
403 | (adm1026_read_value(client, ADM1026_REG_FAN_DIV_4_7)
404 << 8);
405 for (i = 0; i <= 7; ++i) {
406 data->fan_min[i] = adm1026_read_value(client,
407 ADM1026_REG_FAN_MIN(i));
408 data->fan_div[i] = DIV_FROM_REG(value & 0x03);
409 value >>= 2;
410 }
411
412 for (i = 0; i <= 2; ++i) {
413 /*
414 * NOTE: temp_xxx[] are s8 and we assume 2's
415 * complement "conversion" in the assignment
416 */
417 data->temp_min[i] = adm1026_read_value(client,
418 ADM1026_REG_TEMP_MIN[i]);
419 data->temp_max[i] = adm1026_read_value(client,
420 ADM1026_REG_TEMP_MAX[i]);
421 data->temp_tmin[i] = adm1026_read_value(client,
422 ADM1026_REG_TEMP_TMIN[i]);
423 data->temp_crit[i] = adm1026_read_value(client,
424 ADM1026_REG_TEMP_THERM[i]);
425 data->temp_offset[i] = adm1026_read_value(client,
426 ADM1026_REG_TEMP_OFFSET[i]);
427 }
428
429 /* Read the STATUS/alarm masks */
430 alarms = adm1026_read_value(client, ADM1026_REG_MASK4);
431 gpio = alarms & 0x80 ? 0x0100 : 0; /* GPIO16 */
432 alarms = (alarms & 0x7f) << 8;
433 alarms |= adm1026_read_value(client, ADM1026_REG_MASK3);
434 alarms <<= 8;
435 alarms |= adm1026_read_value(client, ADM1026_REG_MASK2);
436 alarms <<= 8;
437 alarms |= adm1026_read_value(client, ADM1026_REG_MASK1);
438 data->alarm_mask = alarms;
439
440 /* Read the GPIO values */
441 gpio |= adm1026_read_value(client,
442 ADM1026_REG_GPIO_MASK_8_15);
443 gpio <<= 8;
444 gpio |= adm1026_read_value(client, ADM1026_REG_GPIO_MASK_0_7);
445 data->gpio_mask = gpio;
446
447 /* Read various values from CONFIG1 */
448 data->config1 = adm1026_read_value(client,
449 ADM1026_REG_CONFIG1);
450 if (data->config1 & CFG1_PWM_AFC) {
451 data->pwm1.enable = 2;
452 data->pwm1.auto_pwm_min =
453 PWM_MIN_FROM_REG(data->pwm1.pwm);
454 }
455 /* Read the GPIO config */
456 data->config2 = adm1026_read_value(client,
457 ADM1026_REG_CONFIG2);
458 data->config3 = adm1026_read_value(client,
459 ADM1026_REG_CONFIG3);
460 data->gpio_config[16] = (data->config3 >> 6) & 0x03;
461
462 value = 0;
463 for (i = 0; i <= 15; ++i) {
464 if ((i & 0x03) == 0) {
465 value = adm1026_read_value(client,
466 ADM1026_REG_GPIO_CFG_0_3 + i/4);
467 }
468 data->gpio_config[i] = value & 0x03;
469 value >>= 2;
470 }
471
472 data->last_config = jiffies;
473 } /* last_config */
474
475 data->valid = 1;
476 mutex_unlock(&data->update_lock);
477 return data;
478 }
479
480 static ssize_t in_show(struct device *dev, struct device_attribute *attr,
481 char *buf)
482 {
483 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
484 int nr = sensor_attr->index;
485 struct adm1026_data *data = adm1026_update_device(dev);
486 return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in[nr]));
487 }
488 static ssize_t in_min_show(struct device *dev, struct device_attribute *attr,
489 char *buf)
490 {
491 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
492 int nr = sensor_attr->index;
493 struct adm1026_data *data = adm1026_update_device(dev);
494 return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_min[nr]));
495 }
496 static ssize_t in_min_store(struct device *dev, struct device_attribute *attr,
497 const char *buf, size_t count)
498 {
499 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
500 int nr = sensor_attr->index;
501 struct adm1026_data *data = dev_get_drvdata(dev);
502 struct i2c_client *client = data->client;
503 long val;
504 int err;
505
506 err = kstrtol(buf, 10, &val);
507 if (err)
508 return err;
509
510 mutex_lock(&data->update_lock);
511 data->in_min[nr] = INS_TO_REG(nr, val);
512 adm1026_write_value(client, ADM1026_REG_IN_MIN[nr], data->in_min[nr]);
513 mutex_unlock(&data->update_lock);
514 return count;
515 }
516 static ssize_t in_max_show(struct device *dev, struct device_attribute *attr,
517 char *buf)
518 {
519 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
520 int nr = sensor_attr->index;
521 struct adm1026_data *data = adm1026_update_device(dev);
522 return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_max[nr]));
523 }
524 static ssize_t in_max_store(struct device *dev, struct device_attribute *attr,
525 const char *buf, size_t count)
526 {
527 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
528 int nr = sensor_attr->index;
529 struct adm1026_data *data = dev_get_drvdata(dev);
530 struct i2c_client *client = data->client;
531 long val;
532 int err;
533
534 err = kstrtol(buf, 10, &val);
535 if (err)
536 return err;
537
538 mutex_lock(&data->update_lock);
539 data->in_max[nr] = INS_TO_REG(nr, val);
540 adm1026_write_value(client, ADM1026_REG_IN_MAX[nr], data->in_max[nr]);
541 mutex_unlock(&data->update_lock);
542 return count;
543 }
544
545 static SENSOR_DEVICE_ATTR_RO(in0_input, in, 0);
546 static SENSOR_DEVICE_ATTR_RW(in0_min, in_min, 0);
547 static SENSOR_DEVICE_ATTR_RW(in0_max, in_max, 0);
548 static SENSOR_DEVICE_ATTR_RO(in1_input, in, 1);
549 static SENSOR_DEVICE_ATTR_RW(in1_min, in_min, 1);
550 static SENSOR_DEVICE_ATTR_RW(in1_max, in_max, 1);
551 static SENSOR_DEVICE_ATTR_RO(in2_input, in, 2);
552 static SENSOR_DEVICE_ATTR_RW(in2_min, in_min, 2);
553 static SENSOR_DEVICE_ATTR_RW(in2_max, in_max, 2);
554 static SENSOR_DEVICE_ATTR_RO(in3_input, in, 3);
555 static SENSOR_DEVICE_ATTR_RW(in3_min, in_min, 3);
556 static SENSOR_DEVICE_ATTR_RW(in3_max, in_max, 3);
557 static SENSOR_DEVICE_ATTR_RO(in4_input, in, 4);
558 static SENSOR_DEVICE_ATTR_RW(in4_min, in_min, 4);
559 static SENSOR_DEVICE_ATTR_RW(in4_max, in_max, 4);
560 static SENSOR_DEVICE_ATTR_RO(in5_input, in, 5);
561 static SENSOR_DEVICE_ATTR_RW(in5_min, in_min, 5);
562 static SENSOR_DEVICE_ATTR_RW(in5_max, in_max, 5);
563 static SENSOR_DEVICE_ATTR_RO(in6_input, in, 6);
564 static SENSOR_DEVICE_ATTR_RW(in6_min, in_min, 6);
565 static SENSOR_DEVICE_ATTR_RW(in6_max, in_max, 6);
566 static SENSOR_DEVICE_ATTR_RO(in7_input, in, 7);
567 static SENSOR_DEVICE_ATTR_RW(in7_min, in_min, 7);
568 static SENSOR_DEVICE_ATTR_RW(in7_max, in_max, 7);
569 static SENSOR_DEVICE_ATTR_RO(in8_input, in, 8);
570 static SENSOR_DEVICE_ATTR_RW(in8_min, in_min, 8);
571 static SENSOR_DEVICE_ATTR_RW(in8_max, in_max, 8);
572 static SENSOR_DEVICE_ATTR_RO(in9_input, in, 9);
573 static SENSOR_DEVICE_ATTR_RW(in9_min, in_min, 9);
574 static SENSOR_DEVICE_ATTR_RW(in9_max, in_max, 9);
575 static SENSOR_DEVICE_ATTR_RO(in10_input, in, 10);
576 static SENSOR_DEVICE_ATTR_RW(in10_min, in_min, 10);
577 static SENSOR_DEVICE_ATTR_RW(in10_max, in_max, 10);
578 static SENSOR_DEVICE_ATTR_RO(in11_input, in, 11);
579 static SENSOR_DEVICE_ATTR_RW(in11_min, in_min, 11);
580 static SENSOR_DEVICE_ATTR_RW(in11_max, in_max, 11);
581 static SENSOR_DEVICE_ATTR_RO(in12_input, in, 12);
582 static SENSOR_DEVICE_ATTR_RW(in12_min, in_min, 12);
583 static SENSOR_DEVICE_ATTR_RW(in12_max, in_max, 12);
584 static SENSOR_DEVICE_ATTR_RO(in13_input, in, 13);
585 static SENSOR_DEVICE_ATTR_RW(in13_min, in_min, 13);
586 static SENSOR_DEVICE_ATTR_RW(in13_max, in_max, 13);
587 static SENSOR_DEVICE_ATTR_RO(in14_input, in, 14);
588 static SENSOR_DEVICE_ATTR_RW(in14_min, in_min, 14);
589 static SENSOR_DEVICE_ATTR_RW(in14_max, in_max, 14);
590 static SENSOR_DEVICE_ATTR_RO(in15_input, in, 15);
591 static SENSOR_DEVICE_ATTR_RW(in15_min, in_min, 15);
592 static SENSOR_DEVICE_ATTR_RW(in15_max, in_max, 15);
593
594 static ssize_t in16_show(struct device *dev, struct device_attribute *attr,
595 char *buf)
596 {
597 struct adm1026_data *data = adm1026_update_device(dev);
598 return sprintf(buf, "%d\n", INS_FROM_REG(16, data->in[16]) -
599 NEG12_OFFSET);
600 }
601 static ssize_t in16_min_show(struct device *dev,
602 struct device_attribute *attr, char *buf)
603 {
604 struct adm1026_data *data = adm1026_update_device(dev);
605 return sprintf(buf, "%d\n", INS_FROM_REG(16, data->in_min[16])
606 - NEG12_OFFSET);
607 }
608 static ssize_t in16_min_store(struct device *dev,
609 struct device_attribute *attr, const char *buf,
610 size_t count)
611 {
612 struct adm1026_data *data = dev_get_drvdata(dev);
613 struct i2c_client *client = data->client;
614 long val;
615 int err;
616
617 err = kstrtol(buf, 10, &val);
618 if (err)
619 return err;
620
621 mutex_lock(&data->update_lock);
622 data->in_min[16] = INS_TO_REG(16,
623 clamp_val(val, INT_MIN,
624 INT_MAX - NEG12_OFFSET) +
625 NEG12_OFFSET);
626 adm1026_write_value(client, ADM1026_REG_IN_MIN[16], data->in_min[16]);
627 mutex_unlock(&data->update_lock);
628 return count;
629 }
630 static ssize_t in16_max_show(struct device *dev,
631 struct device_attribute *attr, char *buf)
632 {
633 struct adm1026_data *data = adm1026_update_device(dev);
634 return sprintf(buf, "%d\n", INS_FROM_REG(16, data->in_max[16])
635 - NEG12_OFFSET);
636 }
637 static ssize_t in16_max_store(struct device *dev,
638 struct device_attribute *attr, const char *buf,
639 size_t count)
640 {
641 struct adm1026_data *data = dev_get_drvdata(dev);
642 struct i2c_client *client = data->client;
643 long val;
644 int err;
645
646 err = kstrtol(buf, 10, &val);
647 if (err)
648 return err;
649
650 mutex_lock(&data->update_lock);
651 data->in_max[16] = INS_TO_REG(16,
652 clamp_val(val, INT_MIN,
653 INT_MAX - NEG12_OFFSET) +
654 NEG12_OFFSET);
655 adm1026_write_value(client, ADM1026_REG_IN_MAX[16], data->in_max[16]);
656 mutex_unlock(&data->update_lock);
657 return count;
658 }
659
660 static SENSOR_DEVICE_ATTR_RO(in16_input, in16, 16);
661 static SENSOR_DEVICE_ATTR_RW(in16_min, in16_min, 16);
662 static SENSOR_DEVICE_ATTR_RW(in16_max, in16_max, 16);
663
664 /* Now add fan read/write functions */
665
666 static ssize_t fan_show(struct device *dev, struct device_attribute *attr,
667 char *buf)
668 {
669 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
670 int nr = sensor_attr->index;
671 struct adm1026_data *data = adm1026_update_device(dev);
672 return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr],
673 data->fan_div[nr]));
674 }
675 static ssize_t fan_min_show(struct device *dev, struct device_attribute *attr,
676 char *buf)
677 {
678 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
679 int nr = sensor_attr->index;
680 struct adm1026_data *data = adm1026_update_device(dev);
681 return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr],
682 data->fan_div[nr]));
683 }
684 static ssize_t fan_min_store(struct device *dev,
685 struct device_attribute *attr, const char *buf,
686 size_t count)
687 {
688 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
689 int nr = sensor_attr->index;
690 struct adm1026_data *data = dev_get_drvdata(dev);
691 struct i2c_client *client = data->client;
692 long val;
693 int err;
694
695 err = kstrtol(buf, 10, &val);
696 if (err)
697 return err;
698
699 mutex_lock(&data->update_lock);
700 data->fan_min[nr] = FAN_TO_REG(val, data->fan_div[nr]);
701 adm1026_write_value(client, ADM1026_REG_FAN_MIN(nr),
702 data->fan_min[nr]);
703 mutex_unlock(&data->update_lock);
704 return count;
705 }
706
707 static SENSOR_DEVICE_ATTR_RO(fan1_input, fan, 0);
708 static SENSOR_DEVICE_ATTR_RW(fan1_min, fan_min, 0);
709 static SENSOR_DEVICE_ATTR_RO(fan2_input, fan, 1);
710 static SENSOR_DEVICE_ATTR_RW(fan2_min, fan_min, 1);
711 static SENSOR_DEVICE_ATTR_RO(fan3_input, fan, 2);
712 static SENSOR_DEVICE_ATTR_RW(fan3_min, fan_min, 2);
713 static SENSOR_DEVICE_ATTR_RO(fan4_input, fan, 3);
714 static SENSOR_DEVICE_ATTR_RW(fan4_min, fan_min, 3);
715 static SENSOR_DEVICE_ATTR_RO(fan5_input, fan, 4);
716 static SENSOR_DEVICE_ATTR_RW(fan5_min, fan_min, 4);
717 static SENSOR_DEVICE_ATTR_RO(fan6_input, fan, 5);
718 static SENSOR_DEVICE_ATTR_RW(fan6_min, fan_min, 5);
719 static SENSOR_DEVICE_ATTR_RO(fan7_input, fan, 6);
720 static SENSOR_DEVICE_ATTR_RW(fan7_min, fan_min, 6);
721 static SENSOR_DEVICE_ATTR_RO(fan8_input, fan, 7);
722 static SENSOR_DEVICE_ATTR_RW(fan8_min, fan_min, 7);
723
724 /* Adjust fan_min to account for new fan divisor */
725 static void fixup_fan_min(struct device *dev, int fan, int old_div)
726 {
727 struct adm1026_data *data = dev_get_drvdata(dev);
728 struct i2c_client *client = data->client;
729 int new_min;
730 int new_div = data->fan_div[fan];
731
732 /* 0 and 0xff are special. Don't adjust them */
733 if (data->fan_min[fan] == 0 || data->fan_min[fan] == 0xff)
734 return;
735
736 new_min = data->fan_min[fan] * old_div / new_div;
737 new_min = clamp_val(new_min, 1, 254);
738 data->fan_min[fan] = new_min;
739 adm1026_write_value(client, ADM1026_REG_FAN_MIN(fan), new_min);
740 }
741
742 /* Now add fan_div read/write functions */
743 static ssize_t fan_div_show(struct device *dev, struct device_attribute *attr,
744 char *buf)
745 {
746 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
747 int nr = sensor_attr->index;
748 struct adm1026_data *data = adm1026_update_device(dev);
749 return sprintf(buf, "%d\n", data->fan_div[nr]);
750 }
751 static ssize_t fan_div_store(struct device *dev,
752 struct device_attribute *attr, const char *buf,
753 size_t count)
754 {
755 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
756 int nr = sensor_attr->index;
757 struct adm1026_data *data = dev_get_drvdata(dev);
758 struct i2c_client *client = data->client;
759 long val;
760 int orig_div, new_div;
761 int err;
762
763 err = kstrtol(buf, 10, &val);
764 if (err)
765 return err;
766
767 new_div = DIV_TO_REG(val);
768
769 mutex_lock(&data->update_lock);
770 orig_div = data->fan_div[nr];
771 data->fan_div[nr] = DIV_FROM_REG(new_div);
772
773 if (nr < 4) { /* 0 <= nr < 4 */
774 adm1026_write_value(client, ADM1026_REG_FAN_DIV_0_3,
775 (DIV_TO_REG(data->fan_div[0]) << 0) |
776 (DIV_TO_REG(data->fan_div[1]) << 2) |
777 (DIV_TO_REG(data->fan_div[2]) << 4) |
778 (DIV_TO_REG(data->fan_div[3]) << 6));
779 } else { /* 3 < nr < 8 */
780 adm1026_write_value(client, ADM1026_REG_FAN_DIV_4_7,
781 (DIV_TO_REG(data->fan_div[4]) << 0) |
782 (DIV_TO_REG(data->fan_div[5]) << 2) |
783 (DIV_TO_REG(data->fan_div[6]) << 4) |
784 (DIV_TO_REG(data->fan_div[7]) << 6));
785 }
786
787 if (data->fan_div[nr] != orig_div)
788 fixup_fan_min(dev, nr, orig_div);
789
790 mutex_unlock(&data->update_lock);
791 return count;
792 }
793
794 static SENSOR_DEVICE_ATTR_RW(fan1_div, fan_div, 0);
795 static SENSOR_DEVICE_ATTR_RW(fan2_div, fan_div, 1);
796 static SENSOR_DEVICE_ATTR_RW(fan3_div, fan_div, 2);
797 static SENSOR_DEVICE_ATTR_RW(fan4_div, fan_div, 3);
798 static SENSOR_DEVICE_ATTR_RW(fan5_div, fan_div, 4);
799 static SENSOR_DEVICE_ATTR_RW(fan6_div, fan_div, 5);
800 static SENSOR_DEVICE_ATTR_RW(fan7_div, fan_div, 6);
801 static SENSOR_DEVICE_ATTR_RW(fan8_div, fan_div, 7);
802
803 /* Temps */
804 static ssize_t temp_show(struct device *dev, struct device_attribute *attr,
805 char *buf)
806 {
807 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
808 int nr = sensor_attr->index;
809 struct adm1026_data *data = adm1026_update_device(dev);
810 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr]));
811 }
812 static ssize_t temp_min_show(struct device *dev,
813 struct device_attribute *attr, char *buf)
814 {
815 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
816 int nr = sensor_attr->index;
817 struct adm1026_data *data = adm1026_update_device(dev);
818 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[nr]));
819 }
820 static ssize_t temp_min_store(struct device *dev,
821 struct device_attribute *attr, const char *buf,
822 size_t count)
823 {
824 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
825 int nr = sensor_attr->index;
826 struct adm1026_data *data = dev_get_drvdata(dev);
827 struct i2c_client *client = data->client;
828 long val;
829 int err;
830
831 err = kstrtol(buf, 10, &val);
832 if (err)
833 return err;
834
835 mutex_lock(&data->update_lock);
836 data->temp_min[nr] = TEMP_TO_REG(val);
837 adm1026_write_value(client, ADM1026_REG_TEMP_MIN[nr],
838 data->temp_min[nr]);
839 mutex_unlock(&data->update_lock);
840 return count;
841 }
842 static ssize_t temp_max_show(struct device *dev,
843 struct device_attribute *attr, char *buf)
844 {
845 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
846 int nr = sensor_attr->index;
847 struct adm1026_data *data = adm1026_update_device(dev);
848 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[nr]));
849 }
850 static ssize_t temp_max_store(struct device *dev,
851 struct device_attribute *attr, const char *buf,
852 size_t count)
853 {
854 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
855 int nr = sensor_attr->index;
856 struct adm1026_data *data = dev_get_drvdata(dev);
857 struct i2c_client *client = data->client;
858 long val;
859 int err;
860
861 err = kstrtol(buf, 10, &val);
862 if (err)
863 return err;
864
865 mutex_lock(&data->update_lock);
866 data->temp_max[nr] = TEMP_TO_REG(val);
867 adm1026_write_value(client, ADM1026_REG_TEMP_MAX[nr],
868 data->temp_max[nr]);
869 mutex_unlock(&data->update_lock);
870 return count;
871 }
872
873 static SENSOR_DEVICE_ATTR_RO(temp1_input, temp, 0);
874 static SENSOR_DEVICE_ATTR_RW(temp1_min, temp_min, 0);
875 static SENSOR_DEVICE_ATTR_RW(temp1_max, temp_max, 0);
876 static SENSOR_DEVICE_ATTR_RO(temp2_input, temp, 1);
877 static SENSOR_DEVICE_ATTR_RW(temp2_min, temp_min, 1);
878 static SENSOR_DEVICE_ATTR_RW(temp2_max, temp_max, 1);
879 static SENSOR_DEVICE_ATTR_RO(temp3_input, temp, 2);
880 static SENSOR_DEVICE_ATTR_RW(temp3_min, temp_min, 2);
881 static SENSOR_DEVICE_ATTR_RW(temp3_max, temp_max, 2);
882
883 static ssize_t temp_offset_show(struct device *dev,
884 struct device_attribute *attr, char *buf)
885 {
886 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
887 int nr = sensor_attr->index;
888 struct adm1026_data *data = adm1026_update_device(dev);
889 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_offset[nr]));
890 }
891 static ssize_t temp_offset_store(struct device *dev,
892 struct device_attribute *attr,
893 const char *buf, size_t count)
894 {
895 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
896 int nr = sensor_attr->index;
897 struct adm1026_data *data = dev_get_drvdata(dev);
898 struct i2c_client *client = data->client;
899 long val;
900 int err;
901
902 err = kstrtol(buf, 10, &val);
903 if (err)
904 return err;
905
906 mutex_lock(&data->update_lock);
907 data->temp_offset[nr] = TEMP_TO_REG(val);
908 adm1026_write_value(client, ADM1026_REG_TEMP_OFFSET[nr],
909 data->temp_offset[nr]);
910 mutex_unlock(&data->update_lock);
911 return count;
912 }
913
914 static SENSOR_DEVICE_ATTR_RW(temp1_offset, temp_offset, 0);
915 static SENSOR_DEVICE_ATTR_RW(temp2_offset, temp_offset, 1);
916 static SENSOR_DEVICE_ATTR_RW(temp3_offset, temp_offset, 2);
917
918 static ssize_t temp_auto_point1_temp_hyst_show(struct device *dev,
919 struct device_attribute *attr,
920 char *buf)
921 {
922 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
923 int nr = sensor_attr->index;
924 struct adm1026_data *data = adm1026_update_device(dev);
925 return sprintf(buf, "%d\n", TEMP_FROM_REG(
926 ADM1026_FAN_ACTIVATION_TEMP_HYST + data->temp_tmin[nr]));
927 }
928 static ssize_t temp_auto_point2_temp_show(struct device *dev,
929 struct device_attribute *attr,
930 char *buf)
931 {
932 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
933 int nr = sensor_attr->index;
934 struct adm1026_data *data = adm1026_update_device(dev);
935 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_tmin[nr] +
936 ADM1026_FAN_CONTROL_TEMP_RANGE));
937 }
938 static ssize_t temp_auto_point1_temp_show(struct device *dev,
939 struct device_attribute *attr,
940 char *buf)
941 {
942 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
943 int nr = sensor_attr->index;
944 struct adm1026_data *data = adm1026_update_device(dev);
945 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_tmin[nr]));
946 }
947 static ssize_t temp_auto_point1_temp_store(struct device *dev,
948 struct device_attribute *attr,
949 const char *buf, size_t count)
950 {
951 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
952 int nr = sensor_attr->index;
953 struct adm1026_data *data = dev_get_drvdata(dev);
954 struct i2c_client *client = data->client;
955 long val;
956 int err;
957
958 err = kstrtol(buf, 10, &val);
959 if (err)
960 return err;
961
962 mutex_lock(&data->update_lock);
963 data->temp_tmin[nr] = TEMP_TO_REG(val);
964 adm1026_write_value(client, ADM1026_REG_TEMP_TMIN[nr],
965 data->temp_tmin[nr]);
966 mutex_unlock(&data->update_lock);
967 return count;
968 }
969
970 static SENSOR_DEVICE_ATTR_RW(temp1_auto_point1_temp, temp_auto_point1_temp, 0);
971 static SENSOR_DEVICE_ATTR_RO(temp1_auto_point1_temp_hyst,
972 temp_auto_point1_temp_hyst, 0);
973 static SENSOR_DEVICE_ATTR_RO(temp1_auto_point2_temp, temp_auto_point2_temp, 0);
974 static SENSOR_DEVICE_ATTR_RW(temp2_auto_point1_temp, temp_auto_point1_temp, 1);
975 static SENSOR_DEVICE_ATTR_RO(temp2_auto_point1_temp_hyst,
976 temp_auto_point1_temp_hyst, 1);
977 static SENSOR_DEVICE_ATTR_RO(temp2_auto_point2_temp, temp_auto_point2_temp, 1);
978 static SENSOR_DEVICE_ATTR_RW(temp3_auto_point1_temp, temp_auto_point1_temp, 2);
979 static SENSOR_DEVICE_ATTR_RO(temp3_auto_point1_temp_hyst,
980 temp_auto_point1_temp_hyst, 2);
981 static SENSOR_DEVICE_ATTR_RO(temp3_auto_point2_temp, temp_auto_point2_temp, 2);
982
983 static ssize_t show_temp_crit_enable(struct device *dev,
984 struct device_attribute *attr, char *buf)
985 {
986 struct adm1026_data *data = adm1026_update_device(dev);
987 return sprintf(buf, "%d\n", (data->config1 & CFG1_THERM_HOT) >> 4);
988 }
989 static ssize_t set_temp_crit_enable(struct device *dev,
990 struct device_attribute *attr, const char *buf, size_t count)
991 {
992 struct adm1026_data *data = dev_get_drvdata(dev);
993 struct i2c_client *client = data->client;
994 unsigned long val;
995 int err;
996
997 err = kstrtoul(buf, 10, &val);
998 if (err)
999 return err;
1000
1001 if (val > 1)
1002 return -EINVAL;
1003
1004 mutex_lock(&data->update_lock);
1005 data->config1 = (data->config1 & ~CFG1_THERM_HOT) | (val << 4);
1006 adm1026_write_value(client, ADM1026_REG_CONFIG1, data->config1);
1007 mutex_unlock(&data->update_lock);
1008
1009 return count;
1010 }
1011
1012 static DEVICE_ATTR(temp1_crit_enable, 0644, show_temp_crit_enable,
1013 set_temp_crit_enable);
1014 static DEVICE_ATTR(temp2_crit_enable, 0644, show_temp_crit_enable,
1015 set_temp_crit_enable);
1016 static DEVICE_ATTR(temp3_crit_enable, 0644, show_temp_crit_enable,
1017 set_temp_crit_enable);
1018
1019 static ssize_t temp_crit_show(struct device *dev,
1020 struct device_attribute *attr, char *buf)
1021 {
1022 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1023 int nr = sensor_attr->index;
1024 struct adm1026_data *data = adm1026_update_device(dev);
1025 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[nr]));
1026 }
1027 static ssize_t temp_crit_store(struct device *dev,
1028 struct device_attribute *attr, const char *buf,
1029 size_t count)
1030 {
1031 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1032 int nr = sensor_attr->index;
1033 struct adm1026_data *data = dev_get_drvdata(dev);
1034 struct i2c_client *client = data->client;
1035 long val;
1036 int err;
1037
1038 err = kstrtol(buf, 10, &val);
1039 if (err)
1040 return err;
1041
1042 mutex_lock(&data->update_lock);
1043 data->temp_crit[nr] = TEMP_TO_REG(val);
1044 adm1026_write_value(client, ADM1026_REG_TEMP_THERM[nr],
1045 data->temp_crit[nr]);
1046 mutex_unlock(&data->update_lock);
1047 return count;
1048 }
1049
1050 static SENSOR_DEVICE_ATTR_RW(temp1_crit, temp_crit, 0);
1051 static SENSOR_DEVICE_ATTR_RW(temp2_crit, temp_crit, 1);
1052 static SENSOR_DEVICE_ATTR_RW(temp3_crit, temp_crit, 2);
1053
1054 static ssize_t analog_out_show(struct device *dev,
1055 struct device_attribute *attr, char *buf)
1056 {
1057 struct adm1026_data *data = adm1026_update_device(dev);
1058 return sprintf(buf, "%d\n", DAC_FROM_REG(data->analog_out));
1059 }
1060 static ssize_t analog_out_store(struct device *dev,
1061 struct device_attribute *attr,
1062 const char *buf, size_t count)
1063 {
1064 struct adm1026_data *data = dev_get_drvdata(dev);
1065 struct i2c_client *client = data->client;
1066 long val;
1067 int err;
1068
1069 err = kstrtol(buf, 10, &val);
1070 if (err)
1071 return err;
1072
1073 mutex_lock(&data->update_lock);
1074 data->analog_out = DAC_TO_REG(val);
1075 adm1026_write_value(client, ADM1026_REG_DAC, data->analog_out);
1076 mutex_unlock(&data->update_lock);
1077 return count;
1078 }
1079
1080 static DEVICE_ATTR_RW(analog_out);
1081
1082 static ssize_t cpu0_vid_show(struct device *dev,
1083 struct device_attribute *attr, char *buf)
1084 {
1085 struct adm1026_data *data = adm1026_update_device(dev);
1086 int vid = (data->gpio >> 11) & 0x1f;
1087
1088 dev_dbg(dev, "Setting VID from GPIO11-15.\n");
1089 return sprintf(buf, "%d\n", vid_from_reg(vid, data->vrm));
1090 }
1091
1092 static DEVICE_ATTR_RO(cpu0_vid);
1093
1094 static ssize_t vrm_show(struct device *dev, struct device_attribute *attr,
1095 char *buf)
1096 {
1097 struct adm1026_data *data = dev_get_drvdata(dev);
1098 return sprintf(buf, "%d\n", data->vrm);
1099 }
1100
1101 static ssize_t vrm_store(struct device *dev, struct device_attribute *attr,
1102 const char *buf, size_t count)
1103 {
1104 struct adm1026_data *data = dev_get_drvdata(dev);
1105 unsigned long val;
1106 int err;
1107
1108 err = kstrtoul(buf, 10, &val);
1109 if (err)
1110 return err;
1111
1112 if (val > 255)
1113 return -EINVAL;
1114
1115 data->vrm = val;
1116 return count;
1117 }
1118
1119 static DEVICE_ATTR_RW(vrm);
1120
1121 static ssize_t alarms_show(struct device *dev, struct device_attribute *attr,
1122 char *buf)
1123 {
1124 struct adm1026_data *data = adm1026_update_device(dev);
1125 return sprintf(buf, "%ld\n", data->alarms);
1126 }
1127
1128 static DEVICE_ATTR_RO(alarms);
1129
1130 static ssize_t alarm_show(struct device *dev, struct device_attribute *attr,
1131 char *buf)
1132 {
1133 struct adm1026_data *data = adm1026_update_device(dev);
1134 int bitnr = to_sensor_dev_attr(attr)->index;
1135 return sprintf(buf, "%ld\n", (data->alarms >> bitnr) & 1);
1136 }
1137
1138 static SENSOR_DEVICE_ATTR_RO(temp2_alarm, alarm, 0);
1139 static SENSOR_DEVICE_ATTR_RO(temp3_alarm, alarm, 1);
1140 static SENSOR_DEVICE_ATTR_RO(in9_alarm, alarm, 1);
1141 static SENSOR_DEVICE_ATTR_RO(in11_alarm, alarm, 2);
1142 static SENSOR_DEVICE_ATTR_RO(in12_alarm, alarm, 3);
1143 static SENSOR_DEVICE_ATTR_RO(in13_alarm, alarm, 4);
1144 static SENSOR_DEVICE_ATTR_RO(in14_alarm, alarm, 5);
1145 static SENSOR_DEVICE_ATTR_RO(in15_alarm, alarm, 6);
1146 static SENSOR_DEVICE_ATTR_RO(in16_alarm, alarm, 7);
1147 static SENSOR_DEVICE_ATTR_RO(in0_alarm, alarm, 8);
1148 static SENSOR_DEVICE_ATTR_RO(in1_alarm, alarm, 9);
1149 static SENSOR_DEVICE_ATTR_RO(in2_alarm, alarm, 10);
1150 static SENSOR_DEVICE_ATTR_RO(in3_alarm, alarm, 11);
1151 static SENSOR_DEVICE_ATTR_RO(in4_alarm, alarm, 12);
1152 static SENSOR_DEVICE_ATTR_RO(in5_alarm, alarm, 13);
1153 static SENSOR_DEVICE_ATTR_RO(in6_alarm, alarm, 14);
1154 static SENSOR_DEVICE_ATTR_RO(in7_alarm, alarm, 15);
1155 static SENSOR_DEVICE_ATTR_RO(fan1_alarm, alarm, 16);
1156 static SENSOR_DEVICE_ATTR_RO(fan2_alarm, alarm, 17);
1157 static SENSOR_DEVICE_ATTR_RO(fan3_alarm, alarm, 18);
1158 static SENSOR_DEVICE_ATTR_RO(fan4_alarm, alarm, 19);
1159 static SENSOR_DEVICE_ATTR_RO(fan5_alarm, alarm, 20);
1160 static SENSOR_DEVICE_ATTR_RO(fan6_alarm, alarm, 21);
1161 static SENSOR_DEVICE_ATTR_RO(fan7_alarm, alarm, 22);
1162 static SENSOR_DEVICE_ATTR_RO(fan8_alarm, alarm, 23);
1163 static SENSOR_DEVICE_ATTR_RO(temp1_alarm, alarm, 24);
1164 static SENSOR_DEVICE_ATTR_RO(in10_alarm, alarm, 25);
1165 static SENSOR_DEVICE_ATTR_RO(in8_alarm, alarm, 26);
1166
1167 static ssize_t alarm_mask_show(struct device *dev,
1168 struct device_attribute *attr, char *buf)
1169 {
1170 struct adm1026_data *data = adm1026_update_device(dev);
1171 return sprintf(buf, "%ld\n", data->alarm_mask);
1172 }
1173 static ssize_t alarm_mask_store(struct device *dev,
1174 struct device_attribute *attr,
1175 const char *buf, size_t count)
1176 {
1177 struct adm1026_data *data = dev_get_drvdata(dev);
1178 struct i2c_client *client = data->client;
1179 unsigned long mask;
1180 long val;
1181 int err;
1182
1183 err = kstrtol(buf, 10, &val);
1184 if (err)
1185 return err;
1186
1187 mutex_lock(&data->update_lock);
1188 data->alarm_mask = val & 0x7fffffff;
1189 mask = data->alarm_mask
1190 | (data->gpio_mask & 0x10000 ? 0x80000000 : 0);
1191 adm1026_write_value(client, ADM1026_REG_MASK1,
1192 mask & 0xff);
1193 mask >>= 8;
1194 adm1026_write_value(client, ADM1026_REG_MASK2,
1195 mask & 0xff);
1196 mask >>= 8;
1197 adm1026_write_value(client, ADM1026_REG_MASK3,
1198 mask & 0xff);
1199 mask >>= 8;
1200 adm1026_write_value(client, ADM1026_REG_MASK4,
1201 mask & 0xff);
1202 mutex_unlock(&data->update_lock);
1203 return count;
1204 }
1205
1206 static DEVICE_ATTR_RW(alarm_mask);
1207
1208 static ssize_t gpio_show(struct device *dev, struct device_attribute *attr,
1209 char *buf)
1210 {
1211 struct adm1026_data *data = adm1026_update_device(dev);
1212 return sprintf(buf, "%ld\n", data->gpio);
1213 }
1214 static ssize_t gpio_store(struct device *dev, struct device_attribute *attr,
1215 const char *buf, size_t count)
1216 {
1217 struct adm1026_data *data = dev_get_drvdata(dev);
1218 struct i2c_client *client = data->client;
1219 long gpio;
1220 long val;
1221 int err;
1222
1223 err = kstrtol(buf, 10, &val);
1224 if (err)
1225 return err;
1226
1227 mutex_lock(&data->update_lock);
1228 data->gpio = val & 0x1ffff;
1229 gpio = data->gpio;
1230 adm1026_write_value(client, ADM1026_REG_GPIO_STATUS_0_7, gpio & 0xff);
1231 gpio >>= 8;
1232 adm1026_write_value(client, ADM1026_REG_GPIO_STATUS_8_15, gpio & 0xff);
1233 gpio = ((gpio >> 1) & 0x80) | (data->alarms >> 24 & 0x7f);
1234 adm1026_write_value(client, ADM1026_REG_STATUS4, gpio & 0xff);
1235 mutex_unlock(&data->update_lock);
1236 return count;
1237 }
1238
1239 static DEVICE_ATTR_RW(gpio);
1240
1241 static ssize_t gpio_mask_show(struct device *dev,
1242 struct device_attribute *attr,
1243 char *buf)
1244 {
1245 struct adm1026_data *data = adm1026_update_device(dev);
1246 return sprintf(buf, "%ld\n", data->gpio_mask);
1247 }
1248 static ssize_t gpio_mask_store(struct device *dev,
1249 struct device_attribute *attr, const char *buf,
1250 size_t count)
1251 {
1252 struct adm1026_data *data = dev_get_drvdata(dev);
1253 struct i2c_client *client = data->client;
1254 long mask;
1255 long val;
1256 int err;
1257
1258 err = kstrtol(buf, 10, &val);
1259 if (err)
1260 return err;
1261
1262 mutex_lock(&data->update_lock);
1263 data->gpio_mask = val & 0x1ffff;
1264 mask = data->gpio_mask;
1265 adm1026_write_value(client, ADM1026_REG_GPIO_MASK_0_7, mask & 0xff);
1266 mask >>= 8;
1267 adm1026_write_value(client, ADM1026_REG_GPIO_MASK_8_15, mask & 0xff);
1268 mask = ((mask >> 1) & 0x80) | (data->alarm_mask >> 24 & 0x7f);
1269 adm1026_write_value(client, ADM1026_REG_MASK1, mask & 0xff);
1270 mutex_unlock(&data->update_lock);
1271 return count;
1272 }
1273
1274 static DEVICE_ATTR_RW(gpio_mask);
1275
1276 static ssize_t pwm1_show(struct device *dev, struct device_attribute *attr,
1277 char *buf)
1278 {
1279 struct adm1026_data *data = adm1026_update_device(dev);
1280 return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm1.pwm));
1281 }
1282
1283 static ssize_t pwm1_store(struct device *dev, struct device_attribute *attr,
1284 const char *buf, size_t count)
1285 {
1286 struct adm1026_data *data = dev_get_drvdata(dev);
1287 struct i2c_client *client = data->client;
1288
1289 if (data->pwm1.enable == 1) {
1290 long val;
1291 int err;
1292
1293 err = kstrtol(buf, 10, &val);
1294 if (err)
1295 return err;
1296
1297 mutex_lock(&data->update_lock);
1298 data->pwm1.pwm = PWM_TO_REG(val);
1299 adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm);
1300 mutex_unlock(&data->update_lock);
1301 }
1302 return count;
1303 }
1304
1305 static ssize_t temp1_auto_point1_pwm_show(struct device *dev,
1306 struct device_attribute *attr,
1307 char *buf)
1308 {
1309 struct adm1026_data *data = adm1026_update_device(dev);
1310 return sprintf(buf, "%d\n", data->pwm1.auto_pwm_min);
1311 }
1312
1313 static ssize_t temp1_auto_point1_pwm_store(struct device *dev,
1314 struct device_attribute *attr,
1315 const char *buf, size_t count)
1316 {
1317 struct adm1026_data *data = dev_get_drvdata(dev);
1318 struct i2c_client *client = data->client;
1319 unsigned long val;
1320 int err;
1321
1322 err = kstrtoul(buf, 10, &val);
1323 if (err)
1324 return err;
1325
1326 mutex_lock(&data->update_lock);
1327 data->pwm1.auto_pwm_min = clamp_val(val, 0, 255);
1328 if (data->pwm1.enable == 2) { /* apply immediately */
1329 data->pwm1.pwm = PWM_TO_REG((data->pwm1.pwm & 0x0f) |
1330 PWM_MIN_TO_REG(data->pwm1.auto_pwm_min));
1331 adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm);
1332 }
1333 mutex_unlock(&data->update_lock);
1334 return count;
1335 }
1336
1337 static ssize_t temp1_auto_point2_pwm_show(struct device *dev,
1338 struct device_attribute *attr,
1339 char *buf)
1340 {
1341 return sprintf(buf, "%d\n", ADM1026_PWM_MAX);
1342 }
1343
1344 static ssize_t pwm1_enable_show(struct device *dev,
1345 struct device_attribute *attr, char *buf)
1346 {
1347 struct adm1026_data *data = adm1026_update_device(dev);
1348 return sprintf(buf, "%d\n", data->pwm1.enable);
1349 }
1350
1351 static ssize_t pwm1_enable_store(struct device *dev,
1352 struct device_attribute *attr,
1353 const char *buf, size_t count)
1354 {
1355 struct adm1026_data *data = dev_get_drvdata(dev);
1356 struct i2c_client *client = data->client;
1357 int old_enable;
1358 unsigned long val;
1359 int err;
1360
1361 err = kstrtoul(buf, 10, &val);
1362 if (err)
1363 return err;
1364
1365 if (val >= 3)
1366 return -EINVAL;
1367
1368 mutex_lock(&data->update_lock);
1369 old_enable = data->pwm1.enable;
1370 data->pwm1.enable = val;
1371 data->config1 = (data->config1 & ~CFG1_PWM_AFC)
1372 | ((val == 2) ? CFG1_PWM_AFC : 0);
1373 adm1026_write_value(client, ADM1026_REG_CONFIG1, data->config1);
1374 if (val == 2) { /* apply pwm1_auto_pwm_min to pwm1 */
1375 data->pwm1.pwm = PWM_TO_REG((data->pwm1.pwm & 0x0f) |
1376 PWM_MIN_TO_REG(data->pwm1.auto_pwm_min));
1377 adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm);
1378 } else if (!((old_enable == 1) && (val == 1))) {
1379 /* set pwm to safe value */
1380 data->pwm1.pwm = 255;
1381 adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm);
1382 }
1383 mutex_unlock(&data->update_lock);
1384
1385 return count;
1386 }
1387
1388 /* enable PWM fan control */
1389 static DEVICE_ATTR_RW(pwm1);
1390 static DEVICE_ATTR(pwm2, 0644, pwm1_show, pwm1_store);
1391 static DEVICE_ATTR(pwm3, 0644, pwm1_show, pwm1_store);
1392 static DEVICE_ATTR_RW(pwm1_enable);
1393 static DEVICE_ATTR(pwm2_enable, 0644, pwm1_enable_show,
1394 pwm1_enable_store);
1395 static DEVICE_ATTR(pwm3_enable, 0644, pwm1_enable_show,
1396 pwm1_enable_store);
1397 static DEVICE_ATTR_RW(temp1_auto_point1_pwm);
1398 static DEVICE_ATTR(temp2_auto_point1_pwm, 0644,
1399 temp1_auto_point1_pwm_show, temp1_auto_point1_pwm_store);
1400 static DEVICE_ATTR(temp3_auto_point1_pwm, 0644,
1401 temp1_auto_point1_pwm_show, temp1_auto_point1_pwm_store);
1402
1403 static DEVICE_ATTR_RO(temp1_auto_point2_pwm);
1404 static DEVICE_ATTR(temp2_auto_point2_pwm, 0444, temp1_auto_point2_pwm_show,
1405 NULL);
1406 static DEVICE_ATTR(temp3_auto_point2_pwm, 0444, temp1_auto_point2_pwm_show,
1407 NULL);
1408
1409 static struct attribute *adm1026_attributes[] = {
1410 &sensor_dev_attr_in0_input.dev_attr.attr,
1411 &sensor_dev_attr_in0_max.dev_attr.attr,
1412 &sensor_dev_attr_in0_min.dev_attr.attr,
1413 &sensor_dev_attr_in0_alarm.dev_attr.attr,
1414 &sensor_dev_attr_in1_input.dev_attr.attr,
1415 &sensor_dev_attr_in1_max.dev_attr.attr,
1416 &sensor_dev_attr_in1_min.dev_attr.attr,
1417 &sensor_dev_attr_in1_alarm.dev_attr.attr,
1418 &sensor_dev_attr_in2_input.dev_attr.attr,
1419 &sensor_dev_attr_in2_max.dev_attr.attr,
1420 &sensor_dev_attr_in2_min.dev_attr.attr,
1421 &sensor_dev_attr_in2_alarm.dev_attr.attr,
1422 &sensor_dev_attr_in3_input.dev_attr.attr,
1423 &sensor_dev_attr_in3_max.dev_attr.attr,
1424 &sensor_dev_attr_in3_min.dev_attr.attr,
1425 &sensor_dev_attr_in3_alarm.dev_attr.attr,
1426 &sensor_dev_attr_in4_input.dev_attr.attr,
1427 &sensor_dev_attr_in4_max.dev_attr.attr,
1428 &sensor_dev_attr_in4_min.dev_attr.attr,
1429 &sensor_dev_attr_in4_alarm.dev_attr.attr,
1430 &sensor_dev_attr_in5_input.dev_attr.attr,
1431 &sensor_dev_attr_in5_max.dev_attr.attr,
1432 &sensor_dev_attr_in5_min.dev_attr.attr,
1433 &sensor_dev_attr_in5_alarm.dev_attr.attr,
1434 &sensor_dev_attr_in6_input.dev_attr.attr,
1435 &sensor_dev_attr_in6_max.dev_attr.attr,
1436 &sensor_dev_attr_in6_min.dev_attr.attr,
1437 &sensor_dev_attr_in6_alarm.dev_attr.attr,
1438 &sensor_dev_attr_in7_input.dev_attr.attr,
1439 &sensor_dev_attr_in7_max.dev_attr.attr,
1440 &sensor_dev_attr_in7_min.dev_attr.attr,
1441 &sensor_dev_attr_in7_alarm.dev_attr.attr,
1442 &sensor_dev_attr_in10_input.dev_attr.attr,
1443 &sensor_dev_attr_in10_max.dev_attr.attr,
1444 &sensor_dev_attr_in10_min.dev_attr.attr,
1445 &sensor_dev_attr_in10_alarm.dev_attr.attr,
1446 &sensor_dev_attr_in11_input.dev_attr.attr,
1447 &sensor_dev_attr_in11_max.dev_attr.attr,
1448 &sensor_dev_attr_in11_min.dev_attr.attr,
1449 &sensor_dev_attr_in11_alarm.dev_attr.attr,
1450 &sensor_dev_attr_in12_input.dev_attr.attr,
1451 &sensor_dev_attr_in12_max.dev_attr.attr,
1452 &sensor_dev_attr_in12_min.dev_attr.attr,
1453 &sensor_dev_attr_in12_alarm.dev_attr.attr,
1454 &sensor_dev_attr_in13_input.dev_attr.attr,
1455 &sensor_dev_attr_in13_max.dev_attr.attr,
1456 &sensor_dev_attr_in13_min.dev_attr.attr,
1457 &sensor_dev_attr_in13_alarm.dev_attr.attr,
1458 &sensor_dev_attr_in14_input.dev_attr.attr,
1459 &sensor_dev_attr_in14_max.dev_attr.attr,
1460 &sensor_dev_attr_in14_min.dev_attr.attr,
1461 &sensor_dev_attr_in14_alarm.dev_attr.attr,
1462 &sensor_dev_attr_in15_input.dev_attr.attr,
1463 &sensor_dev_attr_in15_max.dev_attr.attr,
1464 &sensor_dev_attr_in15_min.dev_attr.attr,
1465 &sensor_dev_attr_in15_alarm.dev_attr.attr,
1466 &sensor_dev_attr_in16_input.dev_attr.attr,
1467 &sensor_dev_attr_in16_max.dev_attr.attr,
1468 &sensor_dev_attr_in16_min.dev_attr.attr,
1469 &sensor_dev_attr_in16_alarm.dev_attr.attr,
1470 &sensor_dev_attr_fan1_input.dev_attr.attr,
1471 &sensor_dev_attr_fan1_div.dev_attr.attr,
1472 &sensor_dev_attr_fan1_min.dev_attr.attr,
1473 &sensor_dev_attr_fan1_alarm.dev_attr.attr,
1474 &sensor_dev_attr_fan2_input.dev_attr.attr,
1475 &sensor_dev_attr_fan2_div.dev_attr.attr,
1476 &sensor_dev_attr_fan2_min.dev_attr.attr,
1477 &sensor_dev_attr_fan2_alarm.dev_attr.attr,
1478 &sensor_dev_attr_fan3_input.dev_attr.attr,
1479 &sensor_dev_attr_fan3_div.dev_attr.attr,
1480 &sensor_dev_attr_fan3_min.dev_attr.attr,
1481 &sensor_dev_attr_fan3_alarm.dev_attr.attr,
1482 &sensor_dev_attr_fan4_input.dev_attr.attr,
1483 &sensor_dev_attr_fan4_div.dev_attr.attr,
1484 &sensor_dev_attr_fan4_min.dev_attr.attr,
1485 &sensor_dev_attr_fan4_alarm.dev_attr.attr,
1486 &sensor_dev_attr_fan5_input.dev_attr.attr,
1487 &sensor_dev_attr_fan5_div.dev_attr.attr,
1488 &sensor_dev_attr_fan5_min.dev_attr.attr,
1489 &sensor_dev_attr_fan5_alarm.dev_attr.attr,
1490 &sensor_dev_attr_fan6_input.dev_attr.attr,
1491 &sensor_dev_attr_fan6_div.dev_attr.attr,
1492 &sensor_dev_attr_fan6_min.dev_attr.attr,
1493 &sensor_dev_attr_fan6_alarm.dev_attr.attr,
1494 &sensor_dev_attr_fan7_input.dev_attr.attr,
1495 &sensor_dev_attr_fan7_div.dev_attr.attr,
1496 &sensor_dev_attr_fan7_min.dev_attr.attr,
1497 &sensor_dev_attr_fan7_alarm.dev_attr.attr,
1498 &sensor_dev_attr_fan8_input.dev_attr.attr,
1499 &sensor_dev_attr_fan8_div.dev_attr.attr,
1500 &sensor_dev_attr_fan8_min.dev_attr.attr,
1501 &sensor_dev_attr_fan8_alarm.dev_attr.attr,
1502 &sensor_dev_attr_temp1_input.dev_attr.attr,
1503 &sensor_dev_attr_temp1_max.dev_attr.attr,
1504 &sensor_dev_attr_temp1_min.dev_attr.attr,
1505 &sensor_dev_attr_temp1_alarm.dev_attr.attr,
1506 &sensor_dev_attr_temp2_input.dev_attr.attr,
1507 &sensor_dev_attr_temp2_max.dev_attr.attr,
1508 &sensor_dev_attr_temp2_min.dev_attr.attr,
1509 &sensor_dev_attr_temp2_alarm.dev_attr.attr,
1510 &sensor_dev_attr_temp1_offset.dev_attr.attr,
1511 &sensor_dev_attr_temp2_offset.dev_attr.attr,
1512 &sensor_dev_attr_temp1_auto_point1_temp.dev_attr.attr,
1513 &sensor_dev_attr_temp2_auto_point1_temp.dev_attr.attr,
1514 &sensor_dev_attr_temp1_auto_point1_temp_hyst.dev_attr.attr,
1515 &sensor_dev_attr_temp2_auto_point1_temp_hyst.dev_attr.attr,
1516 &sensor_dev_attr_temp1_auto_point2_temp.dev_attr.attr,
1517 &sensor_dev_attr_temp2_auto_point2_temp.dev_attr.attr,
1518 &sensor_dev_attr_temp1_crit.dev_attr.attr,
1519 &sensor_dev_attr_temp2_crit.dev_attr.attr,
1520 &dev_attr_temp1_crit_enable.attr,
1521 &dev_attr_temp2_crit_enable.attr,
1522 &dev_attr_cpu0_vid.attr,
1523 &dev_attr_vrm.attr,
1524 &dev_attr_alarms.attr,
1525 &dev_attr_alarm_mask.attr,
1526 &dev_attr_gpio.attr,
1527 &dev_attr_gpio_mask.attr,
1528 &dev_attr_pwm1.attr,
1529 &dev_attr_pwm2.attr,
1530 &dev_attr_pwm3.attr,
1531 &dev_attr_pwm1_enable.attr,
1532 &dev_attr_pwm2_enable.attr,
1533 &dev_attr_pwm3_enable.attr,
1534 &dev_attr_temp1_auto_point1_pwm.attr,
1535 &dev_attr_temp2_auto_point1_pwm.attr,
1536 &dev_attr_temp1_auto_point2_pwm.attr,
1537 &dev_attr_temp2_auto_point2_pwm.attr,
1538 &dev_attr_analog_out.attr,
1539 NULL
1540 };
1541
1542 static const struct attribute_group adm1026_group = {
1543 .attrs = adm1026_attributes,
1544 };
1545
1546 static struct attribute *adm1026_attributes_temp3[] = {
1547 &sensor_dev_attr_temp3_input.dev_attr.attr,
1548 &sensor_dev_attr_temp3_max.dev_attr.attr,
1549 &sensor_dev_attr_temp3_min.dev_attr.attr,
1550 &sensor_dev_attr_temp3_alarm.dev_attr.attr,
1551 &sensor_dev_attr_temp3_offset.dev_attr.attr,
1552 &sensor_dev_attr_temp3_auto_point1_temp.dev_attr.attr,
1553 &sensor_dev_attr_temp3_auto_point1_temp_hyst.dev_attr.attr,
1554 &sensor_dev_attr_temp3_auto_point2_temp.dev_attr.attr,
1555 &sensor_dev_attr_temp3_crit.dev_attr.attr,
1556 &dev_attr_temp3_crit_enable.attr,
1557 &dev_attr_temp3_auto_point1_pwm.attr,
1558 &dev_attr_temp3_auto_point2_pwm.attr,
1559 NULL
1560 };
1561
1562 static const struct attribute_group adm1026_group_temp3 = {
1563 .attrs = adm1026_attributes_temp3,
1564 };
1565
1566 static struct attribute *adm1026_attributes_in8_9[] = {
1567 &sensor_dev_attr_in8_input.dev_attr.attr,
1568 &sensor_dev_attr_in8_max.dev_attr.attr,
1569 &sensor_dev_attr_in8_min.dev_attr.attr,
1570 &sensor_dev_attr_in8_alarm.dev_attr.attr,
1571 &sensor_dev_attr_in9_input.dev_attr.attr,
1572 &sensor_dev_attr_in9_max.dev_attr.attr,
1573 &sensor_dev_attr_in9_min.dev_attr.attr,
1574 &sensor_dev_attr_in9_alarm.dev_attr.attr,
1575 NULL
1576 };
1577
1578 static const struct attribute_group adm1026_group_in8_9 = {
1579 .attrs = adm1026_attributes_in8_9,
1580 };
1581
1582 /* Return 0 if detection is successful, -ENODEV otherwise */
1583 static int adm1026_detect(struct i2c_client *client,
1584 struct i2c_board_info *info)
1585 {
1586 struct i2c_adapter *adapter = client->adapter;
1587 int address = client->addr;
1588 int company, verstep;
1589
1590 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
1591 /* We need to be able to do byte I/O */
1592 return -ENODEV;
1593 }
1594
1595 /* Now, we do the remaining detection. */
1596
1597 company = adm1026_read_value(client, ADM1026_REG_COMPANY);
1598 verstep = adm1026_read_value(client, ADM1026_REG_VERSTEP);
1599
1600 dev_dbg(&adapter->dev,
1601 "Detecting device at %d,0x%02x with COMPANY: 0x%02x and VERSTEP: 0x%02x\n",
1602 i2c_adapter_id(client->adapter), client->addr,
1603 company, verstep);
1604
1605 /* Determine the chip type. */
1606 dev_dbg(&adapter->dev, "Autodetecting device at %d,0x%02x...\n",
1607 i2c_adapter_id(adapter), address);
1608 if (company == ADM1026_COMPANY_ANALOG_DEV
1609 && verstep == ADM1026_VERSTEP_ADM1026) {
1610 /* Analog Devices ADM1026 */
1611 } else if (company == ADM1026_COMPANY_ANALOG_DEV
1612 && (verstep & 0xf0) == ADM1026_VERSTEP_GENERIC) {
1613 dev_err(&adapter->dev,
1614 "Unrecognized stepping 0x%02x. Defaulting to ADM1026.\n",
1615 verstep);
1616 } else if ((verstep & 0xf0) == ADM1026_VERSTEP_GENERIC) {
1617 dev_err(&adapter->dev,
1618 "Found version/stepping 0x%02x. Assuming generic ADM1026.\n",
1619 verstep);
1620 } else {
1621 dev_dbg(&adapter->dev, "Autodetection failed\n");
1622 /* Not an ADM1026... */
1623 return -ENODEV;
1624 }
1625
1626 strlcpy(info->type, "adm1026", I2C_NAME_SIZE);
1627
1628 return 0;
1629 }
1630
1631 static void adm1026_print_gpio(struct i2c_client *client)
1632 {
1633 struct adm1026_data *data = i2c_get_clientdata(client);
1634 int i;
1635
1636 dev_dbg(&client->dev, "GPIO config is:\n");
1637 for (i = 0; i <= 7; ++i) {
1638 if (data->config2 & (1 << i)) {
1639 dev_dbg(&client->dev, "\t%sGP%s%d\n",
1640 data->gpio_config[i] & 0x02 ? "" : "!",
1641 data->gpio_config[i] & 0x01 ? "OUT" : "IN",
1642 i);
1643 } else {
1644 dev_dbg(&client->dev, "\tFAN%d\n", i);
1645 }
1646 }
1647 for (i = 8; i <= 15; ++i) {
1648 dev_dbg(&client->dev, "\t%sGP%s%d\n",
1649 data->gpio_config[i] & 0x02 ? "" : "!",
1650 data->gpio_config[i] & 0x01 ? "OUT" : "IN",
1651 i);
1652 }
1653 if (data->config3 & CFG3_GPIO16_ENABLE) {
1654 dev_dbg(&client->dev, "\t%sGP%s16\n",
1655 data->gpio_config[16] & 0x02 ? "" : "!",
1656 data->gpio_config[16] & 0x01 ? "OUT" : "IN");
1657 } else {
1658 /* GPIO16 is THERM */
1659 dev_dbg(&client->dev, "\tTHERM\n");
1660 }
1661 }
1662
1663 static void adm1026_fixup_gpio(struct i2c_client *client)
1664 {
1665 struct adm1026_data *data = i2c_get_clientdata(client);
1666 int i;
1667 int value;
1668
1669 /* Make the changes requested. */
1670 /*
1671 * We may need to unlock/stop monitoring or soft-reset the
1672 * chip before we can make changes. This hasn't been
1673 * tested much. FIXME
1674 */
1675
1676 /* Make outputs */
1677 for (i = 0; i <= 16; ++i) {
1678 if (gpio_output[i] >= 0 && gpio_output[i] <= 16)
1679 data->gpio_config[gpio_output[i]] |= 0x01;
1680 /* if GPIO0-7 is output, it isn't a FAN tach */
1681 if (gpio_output[i] >= 0 && gpio_output[i] <= 7)
1682 data->config2 |= 1 << gpio_output[i];
1683 }
1684
1685 /* Input overrides output */
1686 for (i = 0; i <= 16; ++i) {
1687 if (gpio_input[i] >= 0 && gpio_input[i] <= 16)
1688 data->gpio_config[gpio_input[i]] &= ~0x01;
1689 /* if GPIO0-7 is input, it isn't a FAN tach */
1690 if (gpio_input[i] >= 0 && gpio_input[i] <= 7)
1691 data->config2 |= 1 << gpio_input[i];
1692 }
1693
1694 /* Inverted */
1695 for (i = 0; i <= 16; ++i) {
1696 if (gpio_inverted[i] >= 0 && gpio_inverted[i] <= 16)
1697 data->gpio_config[gpio_inverted[i]] &= ~0x02;
1698 }
1699
1700 /* Normal overrides inverted */
1701 for (i = 0; i <= 16; ++i) {
1702 if (gpio_normal[i] >= 0 && gpio_normal[i] <= 16)
1703 data->gpio_config[gpio_normal[i]] |= 0x02;
1704 }
1705
1706 /* Fan overrides input and output */
1707 for (i = 0; i <= 7; ++i) {
1708 if (gpio_fan[i] >= 0 && gpio_fan[i] <= 7)
1709 data->config2 &= ~(1 << gpio_fan[i]);
1710 }
1711
1712 /* Write new configs to registers */
1713 adm1026_write_value(client, ADM1026_REG_CONFIG2, data->config2);
1714 data->config3 = (data->config3 & 0x3f)
1715 | ((data->gpio_config[16] & 0x03) << 6);
1716 adm1026_write_value(client, ADM1026_REG_CONFIG3, data->config3);
1717 for (i = 15, value = 0; i >= 0; --i) {
1718 value <<= 2;
1719 value |= data->gpio_config[i] & 0x03;
1720 if ((i & 0x03) == 0) {
1721 adm1026_write_value(client,
1722 ADM1026_REG_GPIO_CFG_0_3 + i/4,
1723 value);
1724 value = 0;
1725 }
1726 }
1727
1728 /* Print the new config */
1729 adm1026_print_gpio(client);
1730 }
1731
1732 static void adm1026_init_client(struct i2c_client *client)
1733 {
1734 int value, i;
1735 struct adm1026_data *data = i2c_get_clientdata(client);
1736
1737 dev_dbg(&client->dev, "Initializing device\n");
1738 /* Read chip config */
1739 data->config1 = adm1026_read_value(client, ADM1026_REG_CONFIG1);
1740 data->config2 = adm1026_read_value(client, ADM1026_REG_CONFIG2);
1741 data->config3 = adm1026_read_value(client, ADM1026_REG_CONFIG3);
1742
1743 /* Inform user of chip config */
1744 dev_dbg(&client->dev, "ADM1026_REG_CONFIG1 is: 0x%02x\n",
1745 data->config1);
1746 if ((data->config1 & CFG1_MONITOR) == 0) {
1747 dev_dbg(&client->dev,
1748 "Monitoring not currently enabled.\n");
1749 }
1750 if (data->config1 & CFG1_INT_ENABLE) {
1751 dev_dbg(&client->dev,
1752 "SMBALERT interrupts are enabled.\n");
1753 }
1754 if (data->config1 & CFG1_AIN8_9) {
1755 dev_dbg(&client->dev,
1756 "in8 and in9 enabled. temp3 disabled.\n");
1757 } else {
1758 dev_dbg(&client->dev,
1759 "temp3 enabled. in8 and in9 disabled.\n");
1760 }
1761 if (data->config1 & CFG1_THERM_HOT) {
1762 dev_dbg(&client->dev,
1763 "Automatic THERM, PWM, and temp limits enabled.\n");
1764 }
1765
1766 if (data->config3 & CFG3_GPIO16_ENABLE) {
1767 dev_dbg(&client->dev,
1768 "GPIO16 enabled. THERM pin disabled.\n");
1769 } else {
1770 dev_dbg(&client->dev,
1771 "THERM pin enabled. GPIO16 disabled.\n");
1772 }
1773 if (data->config3 & CFG3_VREF_250)
1774 dev_dbg(&client->dev, "Vref is 2.50 Volts.\n");
1775 else
1776 dev_dbg(&client->dev, "Vref is 1.82 Volts.\n");
1777 /* Read and pick apart the existing GPIO configuration */
1778 value = 0;
1779 for (i = 0; i <= 15; ++i) {
1780 if ((i & 0x03) == 0) {
1781 value = adm1026_read_value(client,
1782 ADM1026_REG_GPIO_CFG_0_3 + i / 4);
1783 }
1784 data->gpio_config[i] = value & 0x03;
1785 value >>= 2;
1786 }
1787 data->gpio_config[16] = (data->config3 >> 6) & 0x03;
1788
1789 /* ... and then print it */
1790 adm1026_print_gpio(client);
1791
1792 /*
1793 * If the user asks us to reprogram the GPIO config, then
1794 * do it now.
1795 */
1796 if (gpio_input[0] != -1 || gpio_output[0] != -1
1797 || gpio_inverted[0] != -1 || gpio_normal[0] != -1
1798 || gpio_fan[0] != -1) {
1799 adm1026_fixup_gpio(client);
1800 }
1801
1802 /*
1803 * WE INTENTIONALLY make no changes to the limits,
1804 * offsets, pwms, fans and zones. If they were
1805 * configured, we don't want to mess with them.
1806 * If they weren't, the default is 100% PWM, no
1807 * control and will suffice until 'sensors -s'
1808 * can be run by the user. We DO set the default
1809 * value for pwm1.auto_pwm_min to its maximum
1810 * so that enabling automatic pwm fan control
1811 * without first setting a value for pwm1.auto_pwm_min
1812 * will not result in potentially dangerous fan speed decrease.
1813 */
1814 data->pwm1.auto_pwm_min = 255;
1815 /* Start monitoring */
1816 value = adm1026_read_value(client, ADM1026_REG_CONFIG1);
1817 /* Set MONITOR, clear interrupt acknowledge and s/w reset */
1818 value = (value | CFG1_MONITOR) & (~CFG1_INT_CLEAR & ~CFG1_RESET);
1819 dev_dbg(&client->dev, "Setting CONFIG to: 0x%02x\n", value);
1820 data->config1 = value;
1821 adm1026_write_value(client, ADM1026_REG_CONFIG1, value);
1822
1823 /* initialize fan_div[] to hardware defaults */
1824 value = adm1026_read_value(client, ADM1026_REG_FAN_DIV_0_3) |
1825 (adm1026_read_value(client, ADM1026_REG_FAN_DIV_4_7) << 8);
1826 for (i = 0; i <= 7; ++i) {
1827 data->fan_div[i] = DIV_FROM_REG(value & 0x03);
1828 value >>= 2;
1829 }
1830 }
1831
1832 static int adm1026_probe(struct i2c_client *client,
1833 const struct i2c_device_id *id)
1834 {
1835 struct device *dev = &client->dev;
1836 struct device *hwmon_dev;
1837 struct adm1026_data *data;
1838
1839 data = devm_kzalloc(dev, sizeof(struct adm1026_data), GFP_KERNEL);
1840 if (!data)
1841 return -ENOMEM;
1842
1843 i2c_set_clientdata(client, data);
1844 data->client = client;
1845 mutex_init(&data->update_lock);
1846
1847 /* Set the VRM version */
1848 data->vrm = vid_which_vrm();
1849
1850 /* Initialize the ADM1026 chip */
1851 adm1026_init_client(client);
1852
1853 /* sysfs hooks */
1854 data->groups[0] = &adm1026_group;
1855 if (data->config1 & CFG1_AIN8_9)
1856 data->groups[1] = &adm1026_group_in8_9;
1857 else
1858 data->groups[1] = &adm1026_group_temp3;
1859
1860 hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
1861 data, data->groups);
1862 return PTR_ERR_OR_ZERO(hwmon_dev);
1863 }
1864
1865 static const struct i2c_device_id adm1026_id[] = {
1866 { "adm1026", 0 },
1867 { }
1868 };
1869 MODULE_DEVICE_TABLE(i2c, adm1026_id);
1870
1871 static struct i2c_driver adm1026_driver = {
1872 .class = I2C_CLASS_HWMON,
1873 .driver = {
1874 .name = "adm1026",
1875 },
1876 .probe = adm1026_probe,
1877 .id_table = adm1026_id,
1878 .detect = adm1026_detect,
1879 .address_list = normal_i2c,
1880 };
1881
1882 module_i2c_driver(adm1026_driver);
1883
1884 MODULE_LICENSE("GPL");
1885 MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, "
1886 "Justin Thiessen <jthiessen@penguincomputing.com>");
1887 MODULE_DESCRIPTION("ADM1026 driver");
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