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Merge tag 'regmap-fix-v5.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git...
[linux/fpc-iii.git] / drivers / hwmon / adm1026.c
blob49cefbadb156a1dcf8984459372089ba8eecfc27
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * adm1026.c - Part of lm_sensors, Linux kernel modules for hardware
4 * monitoring
5 * Copyright (C) 2002, 2003 Philip Pokorny <ppokorny@penguincomputing.com>
6 * Copyright (C) 2004 Justin Thiessen <jthiessen@penguincomputing.com>
7 *
8 * Chip details at:
9 *
10 * <https://www.onsemi.com/PowerSolutions/product.do?id=ADM1026>
11 */
12
13 #include <linux/module.h>
14 #include <linux/init.h>
15 #include <linux/slab.h>
16 #include <linux/jiffies.h>
17 #include <linux/i2c.h>
18 #include <linux/hwmon.h>
19 #include <linux/hwmon-sysfs.h>
20 #include <linux/hwmon-vid.h>
21 #include <linux/err.h>
22 #include <linux/mutex.h>
23
24 /* Addresses to scan */
25 static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
26
27 static int gpio_input[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1,
28 -1, -1, -1, -1, -1, -1, -1, -1 };
29 static int gpio_output[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1,
30 -1, -1, -1, -1, -1, -1, -1, -1 };
31 static int gpio_inverted[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1,
32 -1, -1, -1, -1, -1, -1, -1, -1 };
33 static int gpio_normal[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1,
34 -1, -1, -1, -1, -1, -1, -1, -1 };
35 static int gpio_fan[8] = { -1, -1, -1, -1, -1, -1, -1, -1 };
36 module_param_array(gpio_input, int, NULL, 0);
37 MODULE_PARM_DESC(gpio_input, "List of GPIO pins (0-16) to program as inputs");
38 module_param_array(gpio_output, int, NULL, 0);
39 MODULE_PARM_DESC(gpio_output,
40 "List of GPIO pins (0-16) to program as outputs");
41 module_param_array(gpio_inverted, int, NULL, 0);
42 MODULE_PARM_DESC(gpio_inverted,
43 "List of GPIO pins (0-16) to program as inverted");
44 module_param_array(gpio_normal, int, NULL, 0);
45 MODULE_PARM_DESC(gpio_normal,
46 "List of GPIO pins (0-16) to program as normal/non-inverted");
47 module_param_array(gpio_fan, int, NULL, 0);
48 MODULE_PARM_DESC(gpio_fan, "List of GPIO pins (0-7) to program as fan tachs");
49
50 /* Many ADM1026 constants specified below */
51
52 /* The ADM1026 registers */
53 #define ADM1026_REG_CONFIG1 0x00
54 #define CFG1_MONITOR 0x01
55 #define CFG1_INT_ENABLE 0x02
56 #define CFG1_INT_CLEAR 0x04
57 #define CFG1_AIN8_9 0x08
58 #define CFG1_THERM_HOT 0x10
59 #define CFG1_DAC_AFC 0x20
60 #define CFG1_PWM_AFC 0x40
61 #define CFG1_RESET 0x80
62
63 #define ADM1026_REG_CONFIG2 0x01
64 /* CONFIG2 controls FAN0/GPIO0 through FAN7/GPIO7 */
65
66 #define ADM1026_REG_CONFIG3 0x07
67 #define CFG3_GPIO16_ENABLE 0x01
68 #define CFG3_CI_CLEAR 0x02
69 #define CFG3_VREF_250 0x04
70 #define CFG3_GPIO16_DIR 0x40
71 #define CFG3_GPIO16_POL 0x80
72
73 #define ADM1026_REG_E2CONFIG 0x13
74 #define E2CFG_READ 0x01
75 #define E2CFG_WRITE 0x02
76 #define E2CFG_ERASE 0x04
77 #define E2CFG_ROM 0x08
78 #define E2CFG_CLK_EXT 0x80
79
80 /*
81 * There are 10 general analog inputs and 7 dedicated inputs
82 * They are:
83 * 0 - 9 = AIN0 - AIN9
84 * 10 = Vbat
85 * 11 = 3.3V Standby
86 * 12 = 3.3V Main
87 * 13 = +5V
88 * 14 = Vccp (CPU core voltage)
89 * 15 = +12V
90 * 16 = -12V
91 */
92 static u16 ADM1026_REG_IN[] = {
93 0x30, 0x31, 0x32, 0x33, 0x34, 0x35,
94 0x36, 0x37, 0x27, 0x29, 0x26, 0x2a,
95 0x2b, 0x2c, 0x2d, 0x2e, 0x2f
96 };
97 static u16 ADM1026_REG_IN_MIN[] = {
98 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d,
99 0x5e, 0x5f, 0x6d, 0x49, 0x6b, 0x4a,
100 0x4b, 0x4c, 0x4d, 0x4e, 0x4f
101 };
102 static u16 ADM1026_REG_IN_MAX[] = {
103 0x50, 0x51, 0x52, 0x53, 0x54, 0x55,
104 0x56, 0x57, 0x6c, 0x41, 0x6a, 0x42,
105 0x43, 0x44, 0x45, 0x46, 0x47
106 };
107
108 /*
109 * Temperatures are:
110 * 0 - Internal
111 * 1 - External 1
112 * 2 - External 2
113 */
114 static u16 ADM1026_REG_TEMP[] = { 0x1f, 0x28, 0x29 };
115 static u16 ADM1026_REG_TEMP_MIN[] = { 0x69, 0x48, 0x49 };
116 static u16 ADM1026_REG_TEMP_MAX[] = { 0x68, 0x40, 0x41 };
117 static u16 ADM1026_REG_TEMP_TMIN[] = { 0x10, 0x11, 0x12 };
118 static u16 ADM1026_REG_TEMP_THERM[] = { 0x0d, 0x0e, 0x0f };
119 static u16 ADM1026_REG_TEMP_OFFSET[] = { 0x1e, 0x6e, 0x6f };
120
121 #define ADM1026_REG_FAN(nr) (0x38 + (nr))
122 #define ADM1026_REG_FAN_MIN(nr) (0x60 + (nr))
123 #define ADM1026_REG_FAN_DIV_0_3 0x02
124 #define ADM1026_REG_FAN_DIV_4_7 0x03
125
126 #define ADM1026_REG_DAC 0x04
127 #define ADM1026_REG_PWM 0x05
128
129 #define ADM1026_REG_GPIO_CFG_0_3 0x08
130 #define ADM1026_REG_GPIO_CFG_4_7 0x09
131 #define ADM1026_REG_GPIO_CFG_8_11 0x0a
132 #define ADM1026_REG_GPIO_CFG_12_15 0x0b
133 /* CFG_16 in REG_CFG3 */
134 #define ADM1026_REG_GPIO_STATUS_0_7 0x24
135 #define ADM1026_REG_GPIO_STATUS_8_15 0x25
136 /* STATUS_16 in REG_STATUS4 */
137 #define ADM1026_REG_GPIO_MASK_0_7 0x1c
138 #define ADM1026_REG_GPIO_MASK_8_15 0x1d
139 /* MASK_16 in REG_MASK4 */
140
141 #define ADM1026_REG_COMPANY 0x16
142 #define ADM1026_REG_VERSTEP 0x17
143 /* These are the recognized values for the above regs */
144 #define ADM1026_COMPANY_ANALOG_DEV 0x41
145 #define ADM1026_VERSTEP_GENERIC 0x40
146 #define ADM1026_VERSTEP_ADM1026 0x44
147
148 #define ADM1026_REG_MASK1 0x18
149 #define ADM1026_REG_MASK2 0x19
150 #define ADM1026_REG_MASK3 0x1a
151 #define ADM1026_REG_MASK4 0x1b
152
153 #define ADM1026_REG_STATUS1 0x20
154 #define ADM1026_REG_STATUS2 0x21
155 #define ADM1026_REG_STATUS3 0x22
156 #define ADM1026_REG_STATUS4 0x23
157
158 #define ADM1026_FAN_ACTIVATION_TEMP_HYST -6
159 #define ADM1026_FAN_CONTROL_TEMP_RANGE 20
160 #define ADM1026_PWM_MAX 255
161
162 /*
163 * Conversions. Rounding and limit checking is only done on the TO_REG
164 * variants. Note that you should be a bit careful with which arguments
165 * these macros are called: arguments may be evaluated more than once.
166 */
167
168 /*
169 * IN are scaled according to built-in resistors. These are the
170 * voltages corresponding to 3/4 of full scale (192 or 0xc0)
171 * NOTE: The -12V input needs an additional factor to account
172 * for the Vref pullup resistor.
173 * NEG12_OFFSET = SCALE * Vref / V-192 - Vref
174 * = 13875 * 2.50 / 1.875 - 2500
175 * = 16000
176 *
177 * The values in this table are based on Table II, page 15 of the
178 * datasheet.
179 */
180 static int adm1026_scaling[] = { /* .001 Volts */
181 2250, 2250, 2250, 2250, 2250, 2250,
182 1875, 1875, 1875, 1875, 3000, 3330,
183 3330, 4995, 2250, 12000, 13875
184 };
185 #define NEG12_OFFSET 16000
186 #define SCALE(val, from, to) (((val)*(to) + ((from)/2))/(from))
187 #define INS_TO_REG(n, val) \
188 SCALE(clamp_val(val, 0, 255 * adm1026_scaling[n] / 192), \
189 adm1026_scaling[n], 192)
190 #define INS_FROM_REG(n, val) (SCALE(val, 192, adm1026_scaling[n]))
191
192 /*
193 * FAN speed is measured using 22.5kHz clock and counts for 2 pulses
194 * and we assume a 2 pulse-per-rev fan tach signal
195 * 22500 kHz * 60 (sec/min) * 2 (pulse) / 2 (pulse/rev) == 1350000
196 */
197 #define FAN_TO_REG(val, div) ((val) <= 0 ? 0xff : \
198 clamp_val(1350000 / ((val) * (div)), \
199 1, 254))
200 #define FAN_FROM_REG(val, div) ((val) == 0 ? -1 : (val) == 0xff ? 0 : \
201 1350000 / ((val) * (div)))
202 #define DIV_FROM_REG(val) (1 << (val))
203 #define DIV_TO_REG(val) ((val) >= 8 ? 3 : (val) >= 4 ? 2 : (val) >= 2 ? 1 : 0)
204
205 /* Temperature is reported in 1 degC increments */
206 #define TEMP_TO_REG(val) DIV_ROUND_CLOSEST(clamp_val(val, -128000, 127000), \
207 1000)
208 #define TEMP_FROM_REG(val) ((val) * 1000)
209 #define OFFSET_TO_REG(val) DIV_ROUND_CLOSEST(clamp_val(val, -128000, 127000), \
210 1000)
211 #define OFFSET_FROM_REG(val) ((val) * 1000)
212
213 #define PWM_TO_REG(val) (clamp_val(val, 0, 255))
214 #define PWM_FROM_REG(val) (val)
215
216 #define PWM_MIN_TO_REG(val) ((val) & 0xf0)
217 #define PWM_MIN_FROM_REG(val) (((val) & 0xf0) + ((val) >> 4))
218
219 /*
220 * Analog output is a voltage, and scaled to millivolts. The datasheet
221 * indicates that the DAC could be used to drive the fans, but in our
222 * example board (Arima HDAMA) it isn't connected to the fans at all.
223 */
224 #define DAC_TO_REG(val) DIV_ROUND_CLOSEST(clamp_val(val, 0, 2500) * 255, \
225 2500)
226 #define DAC_FROM_REG(val) (((val) * 2500) / 255)
227
228 /*
229 * Chip sampling rates
230 *
231 * Some sensors are not updated more frequently than once per second
232 * so it doesn't make sense to read them more often than that.
233 * We cache the results and return the saved data if the driver
234 * is called again before a second has elapsed.
235 *
236 * Also, there is significant configuration data for this chip
237 * So, we keep the config data up to date in the cache
238 * when it is written and only sample it once every 5 *minutes*
239 */
240 #define ADM1026_DATA_INTERVAL (1 * HZ)
241 #define ADM1026_CONFIG_INTERVAL (5 * 60 * HZ)
242
243 /*
244 * We allow for multiple chips in a single system.
245 *
246 * For each registered ADM1026, we need to keep state information
247 * at client->data. The adm1026_data structure is dynamically
248 * allocated, when a new client structure is allocated.
249 */
250
251 struct pwm_data {
252 u8 pwm;
253 u8 enable;
254 u8 auto_pwm_min;
255 };
256
257 struct adm1026_data {
258 struct i2c_client *client;
259 const struct attribute_group *groups[3];
260
261 struct mutex update_lock;
262 int valid; /* !=0 if following fields are valid */
263 unsigned long last_reading; /* In jiffies */
264 unsigned long last_config; /* In jiffies */
265
266 u8 in[17]; /* Register value */
267 u8 in_max[17]; /* Register value */
268 u8 in_min[17]; /* Register value */
269 s8 temp[3]; /* Register value */
270 s8 temp_min[3]; /* Register value */
271 s8 temp_max[3]; /* Register value */
272 s8 temp_tmin[3]; /* Register value */
273 s8 temp_crit[3]; /* Register value */
274 s8 temp_offset[3]; /* Register value */
275 u8 fan[8]; /* Register value */
276 u8 fan_min[8]; /* Register value */
277 u8 fan_div[8]; /* Decoded value */
278 struct pwm_data pwm1; /* Pwm control values */
279 u8 vrm; /* VRM version */
280 u8 analog_out; /* Register value (DAC) */
281 long alarms; /* Register encoding, combined */
282 long alarm_mask; /* Register encoding, combined */
283 long gpio; /* Register encoding, combined */
284 long gpio_mask; /* Register encoding, combined */
285 u8 gpio_config[17]; /* Decoded value */
286 u8 config1; /* Register value */
287 u8 config2; /* Register value */
288 u8 config3; /* Register value */
289 };
290
291 static int adm1026_read_value(struct i2c_client *client, u8 reg)
292 {
293 int res;
294
295 if (reg < 0x80) {
296 /* "RAM" locations */
297 res = i2c_smbus_read_byte_data(client, reg) & 0xff;
298 } else {
299 /* EEPROM, do nothing */
300 res = 0;
301 }
302 return res;
303 }
304
305 static int adm1026_write_value(struct i2c_client *client, u8 reg, int value)
306 {
307 int res;
308
309 if (reg < 0x80) {
310 /* "RAM" locations */
311 res = i2c_smbus_write_byte_data(client, reg, value);
312 } else {
313 /* EEPROM, do nothing */
314 res = 0;
315 }
316 return res;
317 }
318
319 static struct adm1026_data *adm1026_update_device(struct device *dev)
320 {
321 struct adm1026_data *data = dev_get_drvdata(dev);
322 struct i2c_client *client = data->client;
323 int i;
324 long value, alarms, gpio;
325
326 mutex_lock(&data->update_lock);
327 if (!data->valid
328 || time_after(jiffies,
329 data->last_reading + ADM1026_DATA_INTERVAL)) {
330 /* Things that change quickly */
331 dev_dbg(&client->dev, "Reading sensor values\n");
332 for (i = 0; i <= 16; ++i) {
333 data->in[i] =
334 adm1026_read_value(client, ADM1026_REG_IN[i]);
335 }
336
337 for (i = 0; i <= 7; ++i) {
338 data->fan[i] =
339 adm1026_read_value(client, ADM1026_REG_FAN(i));
340 }
341
342 for (i = 0; i <= 2; ++i) {
343 /*
344 * NOTE: temp[] is s8 and we assume 2's complement
345 * "conversion" in the assignment
346 */
347 data->temp[i] =
348 adm1026_read_value(client, ADM1026_REG_TEMP[i]);
349 }
350
351 data->pwm1.pwm = adm1026_read_value(client,
352 ADM1026_REG_PWM);
353 data->analog_out = adm1026_read_value(client,
354 ADM1026_REG_DAC);
355 /* GPIO16 is MSbit of alarms, move it to gpio */
356 alarms = adm1026_read_value(client, ADM1026_REG_STATUS4);
357 gpio = alarms & 0x80 ? 0x0100 : 0; /* GPIO16 */
358 alarms &= 0x7f;
359 alarms <<= 8;
360 alarms |= adm1026_read_value(client, ADM1026_REG_STATUS3);
361 alarms <<= 8;
362 alarms |= adm1026_read_value(client, ADM1026_REG_STATUS2);
363 alarms <<= 8;
364 alarms |= adm1026_read_value(client, ADM1026_REG_STATUS1);
365 data->alarms = alarms;
366
367 /* Read the GPIO values */
368 gpio |= adm1026_read_value(client,
369 ADM1026_REG_GPIO_STATUS_8_15);
370 gpio <<= 8;
371 gpio |= adm1026_read_value(client,
372 ADM1026_REG_GPIO_STATUS_0_7);
373 data->gpio = gpio;
374
375 data->last_reading = jiffies;
376 } /* last_reading */
377
378 if (!data->valid ||
379 time_after(jiffies, data->last_config + ADM1026_CONFIG_INTERVAL)) {
380 /* Things that don't change often */
381 dev_dbg(&client->dev, "Reading config values\n");
382 for (i = 0; i <= 16; ++i) {
383 data->in_min[i] = adm1026_read_value(client,
384 ADM1026_REG_IN_MIN[i]);
385 data->in_max[i] = adm1026_read_value(client,
386 ADM1026_REG_IN_MAX[i]);
387 }
388
389 value = adm1026_read_value(client, ADM1026_REG_FAN_DIV_0_3)
390 | (adm1026_read_value(client, ADM1026_REG_FAN_DIV_4_7)
391 << 8);
392 for (i = 0; i <= 7; ++i) {
393 data->fan_min[i] = adm1026_read_value(client,
394 ADM1026_REG_FAN_MIN(i));
395 data->fan_div[i] = DIV_FROM_REG(value & 0x03);
396 value >>= 2;
397 }
398
399 for (i = 0; i <= 2; ++i) {
400 /*
401 * NOTE: temp_xxx[] are s8 and we assume 2's
402 * complement "conversion" in the assignment
403 */
404 data->temp_min[i] = adm1026_read_value(client,
405 ADM1026_REG_TEMP_MIN[i]);
406 data->temp_max[i] = adm1026_read_value(client,
407 ADM1026_REG_TEMP_MAX[i]);
408 data->temp_tmin[i] = adm1026_read_value(client,
409 ADM1026_REG_TEMP_TMIN[i]);
410 data->temp_crit[i] = adm1026_read_value(client,
411 ADM1026_REG_TEMP_THERM[i]);
412 data->temp_offset[i] = adm1026_read_value(client,
413 ADM1026_REG_TEMP_OFFSET[i]);
414 }
415
416 /* Read the STATUS/alarm masks */
417 alarms = adm1026_read_value(client, ADM1026_REG_MASK4);
418 gpio = alarms & 0x80 ? 0x0100 : 0; /* GPIO16 */
419 alarms = (alarms & 0x7f) << 8;
420 alarms |= adm1026_read_value(client, ADM1026_REG_MASK3);
421 alarms <<= 8;
422 alarms |= adm1026_read_value(client, ADM1026_REG_MASK2);
423 alarms <<= 8;
424 alarms |= adm1026_read_value(client, ADM1026_REG_MASK1);
425 data->alarm_mask = alarms;
426
427 /* Read the GPIO values */
428 gpio |= adm1026_read_value(client,
429 ADM1026_REG_GPIO_MASK_8_15);
430 gpio <<= 8;
431 gpio |= adm1026_read_value(client, ADM1026_REG_GPIO_MASK_0_7);
432 data->gpio_mask = gpio;
433
434 /* Read various values from CONFIG1 */
435 data->config1 = adm1026_read_value(client,
436 ADM1026_REG_CONFIG1);
437 if (data->config1 & CFG1_PWM_AFC) {
438 data->pwm1.enable = 2;
439 data->pwm1.auto_pwm_min =
440 PWM_MIN_FROM_REG(data->pwm1.pwm);
441 }
442 /* Read the GPIO config */
443 data->config2 = adm1026_read_value(client,
444 ADM1026_REG_CONFIG2);
445 data->config3 = adm1026_read_value(client,
446 ADM1026_REG_CONFIG3);
447 data->gpio_config[16] = (data->config3 >> 6) & 0x03;
448
449 value = 0;
450 for (i = 0; i <= 15; ++i) {
451 if ((i & 0x03) == 0) {
452 value = adm1026_read_value(client,
453 ADM1026_REG_GPIO_CFG_0_3 + i/4);
454 }
455 data->gpio_config[i] = value & 0x03;
456 value >>= 2;
457 }
458
459 data->last_config = jiffies;
460 } /* last_config */
461
462 data->valid = 1;
463 mutex_unlock(&data->update_lock);
464 return data;
465 }
466
467 static ssize_t in_show(struct device *dev, struct device_attribute *attr,
468 char *buf)
469 {
470 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
471 int nr = sensor_attr->index;
472 struct adm1026_data *data = adm1026_update_device(dev);
473 return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in[nr]));
474 }
475 static ssize_t in_min_show(struct device *dev, struct device_attribute *attr,
476 char *buf)
477 {
478 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
479 int nr = sensor_attr->index;
480 struct adm1026_data *data = adm1026_update_device(dev);
481 return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_min[nr]));
482 }
483 static ssize_t in_min_store(struct device *dev, struct device_attribute *attr,
484 const char *buf, size_t count)
485 {
486 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
487 int nr = sensor_attr->index;
488 struct adm1026_data *data = dev_get_drvdata(dev);
489 struct i2c_client *client = data->client;
490 long val;
491 int err;
492
493 err = kstrtol(buf, 10, &val);
494 if (err)
495 return err;
496
497 mutex_lock(&data->update_lock);
498 data->in_min[nr] = INS_TO_REG(nr, val);
499 adm1026_write_value(client, ADM1026_REG_IN_MIN[nr], data->in_min[nr]);
500 mutex_unlock(&data->update_lock);
501 return count;
502 }
503 static ssize_t in_max_show(struct device *dev, struct device_attribute *attr,
504 char *buf)
505 {
506 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
507 int nr = sensor_attr->index;
508 struct adm1026_data *data = adm1026_update_device(dev);
509 return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_max[nr]));
510 }
511 static ssize_t in_max_store(struct device *dev, struct device_attribute *attr,
512 const char *buf, size_t count)
513 {
514 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
515 int nr = sensor_attr->index;
516 struct adm1026_data *data = dev_get_drvdata(dev);
517 struct i2c_client *client = data->client;
518 long val;
519 int err;
520
521 err = kstrtol(buf, 10, &val);
522 if (err)
523 return err;
524
525 mutex_lock(&data->update_lock);
526 data->in_max[nr] = INS_TO_REG(nr, val);
527 adm1026_write_value(client, ADM1026_REG_IN_MAX[nr], data->in_max[nr]);
528 mutex_unlock(&data->update_lock);
529 return count;
530 }
531
532 static SENSOR_DEVICE_ATTR_RO(in0_input, in, 0);
533 static SENSOR_DEVICE_ATTR_RW(in0_min, in_min, 0);
534 static SENSOR_DEVICE_ATTR_RW(in0_max, in_max, 0);
535 static SENSOR_DEVICE_ATTR_RO(in1_input, in, 1);
536 static SENSOR_DEVICE_ATTR_RW(in1_min, in_min, 1);
537 static SENSOR_DEVICE_ATTR_RW(in1_max, in_max, 1);
538 static SENSOR_DEVICE_ATTR_RO(in2_input, in, 2);
539 static SENSOR_DEVICE_ATTR_RW(in2_min, in_min, 2);
540 static SENSOR_DEVICE_ATTR_RW(in2_max, in_max, 2);
541 static SENSOR_DEVICE_ATTR_RO(in3_input, in, 3);
542 static SENSOR_DEVICE_ATTR_RW(in3_min, in_min, 3);
543 static SENSOR_DEVICE_ATTR_RW(in3_max, in_max, 3);
544 static SENSOR_DEVICE_ATTR_RO(in4_input, in, 4);
545 static SENSOR_DEVICE_ATTR_RW(in4_min, in_min, 4);
546 static SENSOR_DEVICE_ATTR_RW(in4_max, in_max, 4);
547 static SENSOR_DEVICE_ATTR_RO(in5_input, in, 5);
548 static SENSOR_DEVICE_ATTR_RW(in5_min, in_min, 5);
549 static SENSOR_DEVICE_ATTR_RW(in5_max, in_max, 5);
550 static SENSOR_DEVICE_ATTR_RO(in6_input, in, 6);
551 static SENSOR_DEVICE_ATTR_RW(in6_min, in_min, 6);
552 static SENSOR_DEVICE_ATTR_RW(in6_max, in_max, 6);
553 static SENSOR_DEVICE_ATTR_RO(in7_input, in, 7);
554 static SENSOR_DEVICE_ATTR_RW(in7_min, in_min, 7);
555 static SENSOR_DEVICE_ATTR_RW(in7_max, in_max, 7);
556 static SENSOR_DEVICE_ATTR_RO(in8_input, in, 8);
557 static SENSOR_DEVICE_ATTR_RW(in8_min, in_min, 8);
558 static SENSOR_DEVICE_ATTR_RW(in8_max, in_max, 8);
559 static SENSOR_DEVICE_ATTR_RO(in9_input, in, 9);
560 static SENSOR_DEVICE_ATTR_RW(in9_min, in_min, 9);
561 static SENSOR_DEVICE_ATTR_RW(in9_max, in_max, 9);
562 static SENSOR_DEVICE_ATTR_RO(in10_input, in, 10);
563 static SENSOR_DEVICE_ATTR_RW(in10_min, in_min, 10);
564 static SENSOR_DEVICE_ATTR_RW(in10_max, in_max, 10);
565 static SENSOR_DEVICE_ATTR_RO(in11_input, in, 11);
566 static SENSOR_DEVICE_ATTR_RW(in11_min, in_min, 11);
567 static SENSOR_DEVICE_ATTR_RW(in11_max, in_max, 11);
568 static SENSOR_DEVICE_ATTR_RO(in12_input, in, 12);
569 static SENSOR_DEVICE_ATTR_RW(in12_min, in_min, 12);
570 static SENSOR_DEVICE_ATTR_RW(in12_max, in_max, 12);
571 static SENSOR_DEVICE_ATTR_RO(in13_input, in, 13);
572 static SENSOR_DEVICE_ATTR_RW(in13_min, in_min, 13);
573 static SENSOR_DEVICE_ATTR_RW(in13_max, in_max, 13);
574 static SENSOR_DEVICE_ATTR_RO(in14_input, in, 14);
575 static SENSOR_DEVICE_ATTR_RW(in14_min, in_min, 14);
576 static SENSOR_DEVICE_ATTR_RW(in14_max, in_max, 14);
577 static SENSOR_DEVICE_ATTR_RO(in15_input, in, 15);
578 static SENSOR_DEVICE_ATTR_RW(in15_min, in_min, 15);
579 static SENSOR_DEVICE_ATTR_RW(in15_max, in_max, 15);
580
581 static ssize_t in16_show(struct device *dev, struct device_attribute *attr,
582 char *buf)
583 {
584 struct adm1026_data *data = adm1026_update_device(dev);
585 return sprintf(buf, "%d\n", INS_FROM_REG(16, data->in[16]) -
586 NEG12_OFFSET);
587 }
588 static ssize_t in16_min_show(struct device *dev,
589 struct device_attribute *attr, char *buf)
590 {
591 struct adm1026_data *data = adm1026_update_device(dev);
592 return sprintf(buf, "%d\n", INS_FROM_REG(16, data->in_min[16])
593 - NEG12_OFFSET);
594 }
595 static ssize_t in16_min_store(struct device *dev,
596 struct device_attribute *attr, const char *buf,
597 size_t count)
598 {
599 struct adm1026_data *data = dev_get_drvdata(dev);
600 struct i2c_client *client = data->client;
601 long val;
602 int err;
603
604 err = kstrtol(buf, 10, &val);
605 if (err)
606 return err;
607
608 mutex_lock(&data->update_lock);
609 data->in_min[16] = INS_TO_REG(16,
610 clamp_val(val, INT_MIN,
611 INT_MAX - NEG12_OFFSET) +
612 NEG12_OFFSET);
613 adm1026_write_value(client, ADM1026_REG_IN_MIN[16], data->in_min[16]);
614 mutex_unlock(&data->update_lock);
615 return count;
616 }
617 static ssize_t in16_max_show(struct device *dev,
618 struct device_attribute *attr, char *buf)
619 {
620 struct adm1026_data *data = adm1026_update_device(dev);
621 return sprintf(buf, "%d\n", INS_FROM_REG(16, data->in_max[16])
622 - NEG12_OFFSET);
623 }
624 static ssize_t in16_max_store(struct device *dev,
625 struct device_attribute *attr, const char *buf,
626 size_t count)
627 {
628 struct adm1026_data *data = dev_get_drvdata(dev);
629 struct i2c_client *client = data->client;
630 long val;
631 int err;
632
633 err = kstrtol(buf, 10, &val);
634 if (err)
635 return err;
636
637 mutex_lock(&data->update_lock);
638 data->in_max[16] = INS_TO_REG(16,
639 clamp_val(val, INT_MIN,
640 INT_MAX - NEG12_OFFSET) +
641 NEG12_OFFSET);
642 adm1026_write_value(client, ADM1026_REG_IN_MAX[16], data->in_max[16]);
643 mutex_unlock(&data->update_lock);
644 return count;
645 }
646
647 static SENSOR_DEVICE_ATTR_RO(in16_input, in16, 16);
648 static SENSOR_DEVICE_ATTR_RW(in16_min, in16_min, 16);
649 static SENSOR_DEVICE_ATTR_RW(in16_max, in16_max, 16);
650
651 /* Now add fan read/write functions */
652
653 static ssize_t fan_show(struct device *dev, struct device_attribute *attr,
654 char *buf)
655 {
656 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
657 int nr = sensor_attr->index;
658 struct adm1026_data *data = adm1026_update_device(dev);
659 return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr],
660 data->fan_div[nr]));
661 }
662 static ssize_t fan_min_show(struct device *dev, struct device_attribute *attr,
663 char *buf)
664 {
665 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
666 int nr = sensor_attr->index;
667 struct adm1026_data *data = adm1026_update_device(dev);
668 return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr],
669 data->fan_div[nr]));
670 }
671 static ssize_t fan_min_store(struct device *dev,
672 struct device_attribute *attr, const char *buf,
673 size_t count)
674 {
675 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
676 int nr = sensor_attr->index;
677 struct adm1026_data *data = dev_get_drvdata(dev);
678 struct i2c_client *client = data->client;
679 long val;
680 int err;
681
682 err = kstrtol(buf, 10, &val);
683 if (err)
684 return err;
685
686 mutex_lock(&data->update_lock);
687 data->fan_min[nr] = FAN_TO_REG(val, data->fan_div[nr]);
688 adm1026_write_value(client, ADM1026_REG_FAN_MIN(nr),
689 data->fan_min[nr]);
690 mutex_unlock(&data->update_lock);
691 return count;
692 }
693
694 static SENSOR_DEVICE_ATTR_RO(fan1_input, fan, 0);
695 static SENSOR_DEVICE_ATTR_RW(fan1_min, fan_min, 0);
696 static SENSOR_DEVICE_ATTR_RO(fan2_input, fan, 1);
697 static SENSOR_DEVICE_ATTR_RW(fan2_min, fan_min, 1);
698 static SENSOR_DEVICE_ATTR_RO(fan3_input, fan, 2);
699 static SENSOR_DEVICE_ATTR_RW(fan3_min, fan_min, 2);
700 static SENSOR_DEVICE_ATTR_RO(fan4_input, fan, 3);
701 static SENSOR_DEVICE_ATTR_RW(fan4_min, fan_min, 3);
702 static SENSOR_DEVICE_ATTR_RO(fan5_input, fan, 4);
703 static SENSOR_DEVICE_ATTR_RW(fan5_min, fan_min, 4);
704 static SENSOR_DEVICE_ATTR_RO(fan6_input, fan, 5);
705 static SENSOR_DEVICE_ATTR_RW(fan6_min, fan_min, 5);
706 static SENSOR_DEVICE_ATTR_RO(fan7_input, fan, 6);
707 static SENSOR_DEVICE_ATTR_RW(fan7_min, fan_min, 6);
708 static SENSOR_DEVICE_ATTR_RO(fan8_input, fan, 7);
709 static SENSOR_DEVICE_ATTR_RW(fan8_min, fan_min, 7);
710
711 /* Adjust fan_min to account for new fan divisor */
712 static void fixup_fan_min(struct device *dev, int fan, int old_div)
713 {
714 struct adm1026_data *data = dev_get_drvdata(dev);
715 struct i2c_client *client = data->client;
716 int new_min;
717 int new_div = data->fan_div[fan];
718
719 /* 0 and 0xff are special. Don't adjust them */
720 if (data->fan_min[fan] == 0 || data->fan_min[fan] == 0xff)
721 return;
722
723 new_min = data->fan_min[fan] * old_div / new_div;
724 new_min = clamp_val(new_min, 1, 254);
725 data->fan_min[fan] = new_min;
726 adm1026_write_value(client, ADM1026_REG_FAN_MIN(fan), new_min);
727 }
728
729 /* Now add fan_div read/write functions */
730 static ssize_t fan_div_show(struct device *dev, struct device_attribute *attr,
731 char *buf)
732 {
733 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
734 int nr = sensor_attr->index;
735 struct adm1026_data *data = adm1026_update_device(dev);
736 return sprintf(buf, "%d\n", data->fan_div[nr]);
737 }
738 static ssize_t fan_div_store(struct device *dev,
739 struct device_attribute *attr, const char *buf,
740 size_t count)
741 {
742 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
743 int nr = sensor_attr->index;
744 struct adm1026_data *data = dev_get_drvdata(dev);
745 struct i2c_client *client = data->client;
746 long val;
747 int orig_div, new_div;
748 int err;
749
750 err = kstrtol(buf, 10, &val);
751 if (err)
752 return err;
753
754 new_div = DIV_TO_REG(val);
755
756 mutex_lock(&data->update_lock);
757 orig_div = data->fan_div[nr];
758 data->fan_div[nr] = DIV_FROM_REG(new_div);
759
760 if (nr < 4) { /* 0 <= nr < 4 */
761 adm1026_write_value(client, ADM1026_REG_FAN_DIV_0_3,
762 (DIV_TO_REG(data->fan_div[0]) << 0) |
763 (DIV_TO_REG(data->fan_div[1]) << 2) |
764 (DIV_TO_REG(data->fan_div[2]) << 4) |
765 (DIV_TO_REG(data->fan_div[3]) << 6));
766 } else { /* 3 < nr < 8 */
767 adm1026_write_value(client, ADM1026_REG_FAN_DIV_4_7,
768 (DIV_TO_REG(data->fan_div[4]) << 0) |
769 (DIV_TO_REG(data->fan_div[5]) << 2) |
770 (DIV_TO_REG(data->fan_div[6]) << 4) |
771 (DIV_TO_REG(data->fan_div[7]) << 6));
772 }
773
774 if (data->fan_div[nr] != orig_div)
775 fixup_fan_min(dev, nr, orig_div);
776
777 mutex_unlock(&data->update_lock);
778 return count;
779 }
780
781 static SENSOR_DEVICE_ATTR_RW(fan1_div, fan_div, 0);
782 static SENSOR_DEVICE_ATTR_RW(fan2_div, fan_div, 1);
783 static SENSOR_DEVICE_ATTR_RW(fan3_div, fan_div, 2);
784 static SENSOR_DEVICE_ATTR_RW(fan4_div, fan_div, 3);
785 static SENSOR_DEVICE_ATTR_RW(fan5_div, fan_div, 4);
786 static SENSOR_DEVICE_ATTR_RW(fan6_div, fan_div, 5);
787 static SENSOR_DEVICE_ATTR_RW(fan7_div, fan_div, 6);
788 static SENSOR_DEVICE_ATTR_RW(fan8_div, fan_div, 7);
789
790 /* Temps */
791 static ssize_t temp_show(struct device *dev, struct device_attribute *attr,
792 char *buf)
793 {
794 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
795 int nr = sensor_attr->index;
796 struct adm1026_data *data = adm1026_update_device(dev);
797 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr]));
798 }
799 static ssize_t temp_min_show(struct device *dev,
800 struct device_attribute *attr, char *buf)
801 {
802 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
803 int nr = sensor_attr->index;
804 struct adm1026_data *data = adm1026_update_device(dev);
805 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[nr]));
806 }
807 static ssize_t temp_min_store(struct device *dev,
808 struct device_attribute *attr, const char *buf,
809 size_t count)
810 {
811 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
812 int nr = sensor_attr->index;
813 struct adm1026_data *data = dev_get_drvdata(dev);
814 struct i2c_client *client = data->client;
815 long val;
816 int err;
817
818 err = kstrtol(buf, 10, &val);
819 if (err)
820 return err;
821
822 mutex_lock(&data->update_lock);
823 data->temp_min[nr] = TEMP_TO_REG(val);
824 adm1026_write_value(client, ADM1026_REG_TEMP_MIN[nr],
825 data->temp_min[nr]);
826 mutex_unlock(&data->update_lock);
827 return count;
828 }
829 static ssize_t temp_max_show(struct device *dev,
830 struct device_attribute *attr, char *buf)
831 {
832 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
833 int nr = sensor_attr->index;
834 struct adm1026_data *data = adm1026_update_device(dev);
835 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[nr]));
836 }
837 static ssize_t temp_max_store(struct device *dev,
838 struct device_attribute *attr, const char *buf,
839 size_t count)
840 {
841 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
842 int nr = sensor_attr->index;
843 struct adm1026_data *data = dev_get_drvdata(dev);
844 struct i2c_client *client = data->client;
845 long val;
846 int err;
847
848 err = kstrtol(buf, 10, &val);
849 if (err)
850 return err;
851
852 mutex_lock(&data->update_lock);
853 data->temp_max[nr] = TEMP_TO_REG(val);
854 adm1026_write_value(client, ADM1026_REG_TEMP_MAX[nr],
855 data->temp_max[nr]);
856 mutex_unlock(&data->update_lock);
857 return count;
858 }
859
860 static SENSOR_DEVICE_ATTR_RO(temp1_input, temp, 0);
861 static SENSOR_DEVICE_ATTR_RW(temp1_min, temp_min, 0);
862 static SENSOR_DEVICE_ATTR_RW(temp1_max, temp_max, 0);
863 static SENSOR_DEVICE_ATTR_RO(temp2_input, temp, 1);
864 static SENSOR_DEVICE_ATTR_RW(temp2_min, temp_min, 1);
865 static SENSOR_DEVICE_ATTR_RW(temp2_max, temp_max, 1);
866 static SENSOR_DEVICE_ATTR_RO(temp3_input, temp, 2);
867 static SENSOR_DEVICE_ATTR_RW(temp3_min, temp_min, 2);
868 static SENSOR_DEVICE_ATTR_RW(temp3_max, temp_max, 2);
869
870 static ssize_t temp_offset_show(struct device *dev,
871 struct device_attribute *attr, char *buf)
872 {
873 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
874 int nr = sensor_attr->index;
875 struct adm1026_data *data = adm1026_update_device(dev);
876 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_offset[nr]));
877 }
878 static ssize_t temp_offset_store(struct device *dev,
879 struct device_attribute *attr,
880 const char *buf, size_t count)
881 {
882 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
883 int nr = sensor_attr->index;
884 struct adm1026_data *data = dev_get_drvdata(dev);
885 struct i2c_client *client = data->client;
886 long val;
887 int err;
888
889 err = kstrtol(buf, 10, &val);
890 if (err)
891 return err;
892
893 mutex_lock(&data->update_lock);
894 data->temp_offset[nr] = TEMP_TO_REG(val);
895 adm1026_write_value(client, ADM1026_REG_TEMP_OFFSET[nr],
896 data->temp_offset[nr]);
897 mutex_unlock(&data->update_lock);
898 return count;
899 }
900
901 static SENSOR_DEVICE_ATTR_RW(temp1_offset, temp_offset, 0);
902 static SENSOR_DEVICE_ATTR_RW(temp2_offset, temp_offset, 1);
903 static SENSOR_DEVICE_ATTR_RW(temp3_offset, temp_offset, 2);
904
905 static ssize_t temp_auto_point1_temp_hyst_show(struct device *dev,
906 struct device_attribute *attr,
907 char *buf)
908 {
909 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
910 int nr = sensor_attr->index;
911 struct adm1026_data *data = adm1026_update_device(dev);
912 return sprintf(buf, "%d\n", TEMP_FROM_REG(
913 ADM1026_FAN_ACTIVATION_TEMP_HYST + data->temp_tmin[nr]));
914 }
915 static ssize_t temp_auto_point2_temp_show(struct device *dev,
916 struct device_attribute *attr,
917 char *buf)
918 {
919 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
920 int nr = sensor_attr->index;
921 struct adm1026_data *data = adm1026_update_device(dev);
922 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_tmin[nr] +
923 ADM1026_FAN_CONTROL_TEMP_RANGE));
924 }
925 static ssize_t temp_auto_point1_temp_show(struct device *dev,
926 struct device_attribute *attr,
927 char *buf)
928 {
929 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
930 int nr = sensor_attr->index;
931 struct adm1026_data *data = adm1026_update_device(dev);
932 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_tmin[nr]));
933 }
934 static ssize_t temp_auto_point1_temp_store(struct device *dev,
935 struct device_attribute *attr,
936 const char *buf, size_t count)
937 {
938 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
939 int nr = sensor_attr->index;
940 struct adm1026_data *data = dev_get_drvdata(dev);
941 struct i2c_client *client = data->client;
942 long val;
943 int err;
944
945 err = kstrtol(buf, 10, &val);
946 if (err)
947 return err;
948
949 mutex_lock(&data->update_lock);
950 data->temp_tmin[nr] = TEMP_TO_REG(val);
951 adm1026_write_value(client, ADM1026_REG_TEMP_TMIN[nr],
952 data->temp_tmin[nr]);
953 mutex_unlock(&data->update_lock);
954 return count;
955 }
956
957 static SENSOR_DEVICE_ATTR_RW(temp1_auto_point1_temp, temp_auto_point1_temp, 0);
958 static SENSOR_DEVICE_ATTR_RO(temp1_auto_point1_temp_hyst,
959 temp_auto_point1_temp_hyst, 0);
960 static SENSOR_DEVICE_ATTR_RO(temp1_auto_point2_temp, temp_auto_point2_temp, 0);
961 static SENSOR_DEVICE_ATTR_RW(temp2_auto_point1_temp, temp_auto_point1_temp, 1);
962 static SENSOR_DEVICE_ATTR_RO(temp2_auto_point1_temp_hyst,
963 temp_auto_point1_temp_hyst, 1);
964 static SENSOR_DEVICE_ATTR_RO(temp2_auto_point2_temp, temp_auto_point2_temp, 1);
965 static SENSOR_DEVICE_ATTR_RW(temp3_auto_point1_temp, temp_auto_point1_temp, 2);
966 static SENSOR_DEVICE_ATTR_RO(temp3_auto_point1_temp_hyst,
967 temp_auto_point1_temp_hyst, 2);
968 static SENSOR_DEVICE_ATTR_RO(temp3_auto_point2_temp, temp_auto_point2_temp, 2);
969
970 static ssize_t show_temp_crit_enable(struct device *dev,
971 struct device_attribute *attr, char *buf)
972 {
973 struct adm1026_data *data = adm1026_update_device(dev);
974 return sprintf(buf, "%d\n", (data->config1 & CFG1_THERM_HOT) >> 4);
975 }
976 static ssize_t set_temp_crit_enable(struct device *dev,
977 struct device_attribute *attr, const char *buf, size_t count)
978 {
979 struct adm1026_data *data = dev_get_drvdata(dev);
980 struct i2c_client *client = data->client;
981 unsigned long val;
982 int err;
983
984 err = kstrtoul(buf, 10, &val);
985 if (err)
986 return err;
987
988 if (val > 1)
989 return -EINVAL;
990
991 mutex_lock(&data->update_lock);
992 data->config1 = (data->config1 & ~CFG1_THERM_HOT) | (val << 4);
993 adm1026_write_value(client, ADM1026_REG_CONFIG1, data->config1);
994 mutex_unlock(&data->update_lock);
995
996 return count;
997 }
998
999 static DEVICE_ATTR(temp1_crit_enable, 0644, show_temp_crit_enable,
1000 set_temp_crit_enable);
1001 static DEVICE_ATTR(temp2_crit_enable, 0644, show_temp_crit_enable,
1002 set_temp_crit_enable);
1003 static DEVICE_ATTR(temp3_crit_enable, 0644, show_temp_crit_enable,
1004 set_temp_crit_enable);
1005
1006 static ssize_t temp_crit_show(struct device *dev,
1007 struct device_attribute *attr, char *buf)
1008 {
1009 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1010 int nr = sensor_attr->index;
1011 struct adm1026_data *data = adm1026_update_device(dev);
1012 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[nr]));
1013 }
1014 static ssize_t temp_crit_store(struct device *dev,
1015 struct device_attribute *attr, const char *buf,
1016 size_t count)
1017 {
1018 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1019 int nr = sensor_attr->index;
1020 struct adm1026_data *data = dev_get_drvdata(dev);
1021 struct i2c_client *client = data->client;
1022 long val;
1023 int err;
1024
1025 err = kstrtol(buf, 10, &val);
1026 if (err)
1027 return err;
1028
1029 mutex_lock(&data->update_lock);
1030 data->temp_crit[nr] = TEMP_TO_REG(val);
1031 adm1026_write_value(client, ADM1026_REG_TEMP_THERM[nr],
1032 data->temp_crit[nr]);
1033 mutex_unlock(&data->update_lock);
1034 return count;
1035 }
1036
1037 static SENSOR_DEVICE_ATTR_RW(temp1_crit, temp_crit, 0);
1038 static SENSOR_DEVICE_ATTR_RW(temp2_crit, temp_crit, 1);
1039 static SENSOR_DEVICE_ATTR_RW(temp3_crit, temp_crit, 2);
1040
1041 static ssize_t analog_out_show(struct device *dev,
1042 struct device_attribute *attr, char *buf)
1043 {
1044 struct adm1026_data *data = adm1026_update_device(dev);
1045 return sprintf(buf, "%d\n", DAC_FROM_REG(data->analog_out));
1046 }
1047 static ssize_t analog_out_store(struct device *dev,
1048 struct device_attribute *attr,
1049 const char *buf, size_t count)
1050 {
1051 struct adm1026_data *data = dev_get_drvdata(dev);
1052 struct i2c_client *client = data->client;
1053 long val;
1054 int err;
1055
1056 err = kstrtol(buf, 10, &val);
1057 if (err)
1058 return err;
1059
1060 mutex_lock(&data->update_lock);
1061 data->analog_out = DAC_TO_REG(val);
1062 adm1026_write_value(client, ADM1026_REG_DAC, data->analog_out);
1063 mutex_unlock(&data->update_lock);
1064 return count;
1065 }
1066
1067 static DEVICE_ATTR_RW(analog_out);
1068
1069 static ssize_t cpu0_vid_show(struct device *dev,
1070 struct device_attribute *attr, char *buf)
1071 {
1072 struct adm1026_data *data = adm1026_update_device(dev);
1073 int vid = (data->gpio >> 11) & 0x1f;
1074
1075 dev_dbg(dev, "Setting VID from GPIO11-15.\n");
1076 return sprintf(buf, "%d\n", vid_from_reg(vid, data->vrm));
1077 }
1078
1079 static DEVICE_ATTR_RO(cpu0_vid);
1080
1081 static ssize_t vrm_show(struct device *dev, struct device_attribute *attr,
1082 char *buf)
1083 {
1084 struct adm1026_data *data = dev_get_drvdata(dev);
1085 return sprintf(buf, "%d\n", data->vrm);
1086 }
1087
1088 static ssize_t vrm_store(struct device *dev, struct device_attribute *attr,
1089 const char *buf, size_t count)
1090 {
1091 struct adm1026_data *data = dev_get_drvdata(dev);
1092 unsigned long val;
1093 int err;
1094
1095 err = kstrtoul(buf, 10, &val);
1096 if (err)
1097 return err;
1098
1099 if (val > 255)
1100 return -EINVAL;
1101
1102 data->vrm = val;
1103 return count;
1104 }
1105
1106 static DEVICE_ATTR_RW(vrm);
1107
1108 static ssize_t alarms_show(struct device *dev, struct device_attribute *attr,
1109 char *buf)
1110 {
1111 struct adm1026_data *data = adm1026_update_device(dev);
1112 return sprintf(buf, "%ld\n", data->alarms);
1113 }
1114
1115 static DEVICE_ATTR_RO(alarms);
1116
1117 static ssize_t alarm_show(struct device *dev, struct device_attribute *attr,
1118 char *buf)
1119 {
1120 struct adm1026_data *data = adm1026_update_device(dev);
1121 int bitnr = to_sensor_dev_attr(attr)->index;
1122 return sprintf(buf, "%ld\n", (data->alarms >> bitnr) & 1);
1123 }
1124
1125 static SENSOR_DEVICE_ATTR_RO(temp2_alarm, alarm, 0);
1126 static SENSOR_DEVICE_ATTR_RO(temp3_alarm, alarm, 1);
1127 static SENSOR_DEVICE_ATTR_RO(in9_alarm, alarm, 1);
1128 static SENSOR_DEVICE_ATTR_RO(in11_alarm, alarm, 2);
1129 static SENSOR_DEVICE_ATTR_RO(in12_alarm, alarm, 3);
1130 static SENSOR_DEVICE_ATTR_RO(in13_alarm, alarm, 4);
1131 static SENSOR_DEVICE_ATTR_RO(in14_alarm, alarm, 5);
1132 static SENSOR_DEVICE_ATTR_RO(in15_alarm, alarm, 6);
1133 static SENSOR_DEVICE_ATTR_RO(in16_alarm, alarm, 7);
1134 static SENSOR_DEVICE_ATTR_RO(in0_alarm, alarm, 8);
1135 static SENSOR_DEVICE_ATTR_RO(in1_alarm, alarm, 9);
1136 static SENSOR_DEVICE_ATTR_RO(in2_alarm, alarm, 10);
1137 static SENSOR_DEVICE_ATTR_RO(in3_alarm, alarm, 11);
1138 static SENSOR_DEVICE_ATTR_RO(in4_alarm, alarm, 12);
1139 static SENSOR_DEVICE_ATTR_RO(in5_alarm, alarm, 13);
1140 static SENSOR_DEVICE_ATTR_RO(in6_alarm, alarm, 14);
1141 static SENSOR_DEVICE_ATTR_RO(in7_alarm, alarm, 15);
1142 static SENSOR_DEVICE_ATTR_RO(fan1_alarm, alarm, 16);
1143 static SENSOR_DEVICE_ATTR_RO(fan2_alarm, alarm, 17);
1144 static SENSOR_DEVICE_ATTR_RO(fan3_alarm, alarm, 18);
1145 static SENSOR_DEVICE_ATTR_RO(fan4_alarm, alarm, 19);
1146 static SENSOR_DEVICE_ATTR_RO(fan5_alarm, alarm, 20);
1147 static SENSOR_DEVICE_ATTR_RO(fan6_alarm, alarm, 21);
1148 static SENSOR_DEVICE_ATTR_RO(fan7_alarm, alarm, 22);
1149 static SENSOR_DEVICE_ATTR_RO(fan8_alarm, alarm, 23);
1150 static SENSOR_DEVICE_ATTR_RO(temp1_alarm, alarm, 24);
1151 static SENSOR_DEVICE_ATTR_RO(in10_alarm, alarm, 25);
1152 static SENSOR_DEVICE_ATTR_RO(in8_alarm, alarm, 26);
1153
1154 static ssize_t alarm_mask_show(struct device *dev,
1155 struct device_attribute *attr, char *buf)
1156 {
1157 struct adm1026_data *data = adm1026_update_device(dev);
1158 return sprintf(buf, "%ld\n", data->alarm_mask);
1159 }
1160 static ssize_t alarm_mask_store(struct device *dev,
1161 struct device_attribute *attr,
1162 const char *buf, size_t count)
1163 {
1164 struct adm1026_data *data = dev_get_drvdata(dev);
1165 struct i2c_client *client = data->client;
1166 unsigned long mask;
1167 long val;
1168 int err;
1169
1170 err = kstrtol(buf, 10, &val);
1171 if (err)
1172 return err;
1173
1174 mutex_lock(&data->update_lock);
1175 data->alarm_mask = val & 0x7fffffff;
1176 mask = data->alarm_mask
1177 | (data->gpio_mask & 0x10000 ? 0x80000000 : 0);
1178 adm1026_write_value(client, ADM1026_REG_MASK1,
1179 mask & 0xff);
1180 mask >>= 8;
1181 adm1026_write_value(client, ADM1026_REG_MASK2,
1182 mask & 0xff);
1183 mask >>= 8;
1184 adm1026_write_value(client, ADM1026_REG_MASK3,
1185 mask & 0xff);
1186 mask >>= 8;
1187 adm1026_write_value(client, ADM1026_REG_MASK4,
1188 mask & 0xff);
1189 mutex_unlock(&data->update_lock);
1190 return count;
1191 }
1192
1193 static DEVICE_ATTR_RW(alarm_mask);
1194
1195 static ssize_t gpio_show(struct device *dev, struct device_attribute *attr,
1196 char *buf)
1197 {
1198 struct adm1026_data *data = adm1026_update_device(dev);
1199 return sprintf(buf, "%ld\n", data->gpio);
1200 }
1201 static ssize_t gpio_store(struct device *dev, struct device_attribute *attr,
1202 const char *buf, size_t count)
1203 {
1204 struct adm1026_data *data = dev_get_drvdata(dev);
1205 struct i2c_client *client = data->client;
1206 long gpio;
1207 long val;
1208 int err;
1209
1210 err = kstrtol(buf, 10, &val);
1211 if (err)
1212 return err;
1213
1214 mutex_lock(&data->update_lock);
1215 data->gpio = val & 0x1ffff;
1216 gpio = data->gpio;
1217 adm1026_write_value(client, ADM1026_REG_GPIO_STATUS_0_7, gpio & 0xff);
1218 gpio >>= 8;
1219 adm1026_write_value(client, ADM1026_REG_GPIO_STATUS_8_15, gpio & 0xff);
1220 gpio = ((gpio >> 1) & 0x80) | (data->alarms >> 24 & 0x7f);
1221 adm1026_write_value(client, ADM1026_REG_STATUS4, gpio & 0xff);
1222 mutex_unlock(&data->update_lock);
1223 return count;
1224 }
1225
1226 static DEVICE_ATTR_RW(gpio);
1227
1228 static ssize_t gpio_mask_show(struct device *dev,
1229 struct device_attribute *attr,
1230 char *buf)
1231 {
1232 struct adm1026_data *data = adm1026_update_device(dev);
1233 return sprintf(buf, "%ld\n", data->gpio_mask);
1234 }
1235 static ssize_t gpio_mask_store(struct device *dev,
1236 struct device_attribute *attr, const char *buf,
1237 size_t count)
1238 {
1239 struct adm1026_data *data = dev_get_drvdata(dev);
1240 struct i2c_client *client = data->client;
1241 long mask;
1242 long val;
1243 int err;
1244
1245 err = kstrtol(buf, 10, &val);
1246 if (err)
1247 return err;
1248
1249 mutex_lock(&data->update_lock);
1250 data->gpio_mask = val & 0x1ffff;
1251 mask = data->gpio_mask;
1252 adm1026_write_value(client, ADM1026_REG_GPIO_MASK_0_7, mask & 0xff);
1253 mask >>= 8;
1254 adm1026_write_value(client, ADM1026_REG_GPIO_MASK_8_15, mask & 0xff);
1255 mask = ((mask >> 1) & 0x80) | (data->alarm_mask >> 24 & 0x7f);
1256 adm1026_write_value(client, ADM1026_REG_MASK1, mask & 0xff);
1257 mutex_unlock(&data->update_lock);
1258 return count;
1259 }
1260
1261 static DEVICE_ATTR_RW(gpio_mask);
1262
1263 static ssize_t pwm1_show(struct device *dev, struct device_attribute *attr,
1264 char *buf)
1265 {
1266 struct adm1026_data *data = adm1026_update_device(dev);
1267 return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm1.pwm));
1268 }
1269
1270 static ssize_t pwm1_store(struct device *dev, struct device_attribute *attr,
1271 const char *buf, size_t count)
1272 {
1273 struct adm1026_data *data = dev_get_drvdata(dev);
1274 struct i2c_client *client = data->client;
1275
1276 if (data->pwm1.enable == 1) {
1277 long val;
1278 int err;
1279
1280 err = kstrtol(buf, 10, &val);
1281 if (err)
1282 return err;
1283
1284 mutex_lock(&data->update_lock);
1285 data->pwm1.pwm = PWM_TO_REG(val);
1286 adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm);
1287 mutex_unlock(&data->update_lock);
1288 }
1289 return count;
1290 }
1291
1292 static ssize_t temp1_auto_point1_pwm_show(struct device *dev,
1293 struct device_attribute *attr,
1294 char *buf)
1295 {
1296 struct adm1026_data *data = adm1026_update_device(dev);
1297 return sprintf(buf, "%d\n", data->pwm1.auto_pwm_min);
1298 }
1299
1300 static ssize_t temp1_auto_point1_pwm_store(struct device *dev,
1301 struct device_attribute *attr,
1302 const char *buf, size_t count)
1303 {
1304 struct adm1026_data *data = dev_get_drvdata(dev);
1305 struct i2c_client *client = data->client;
1306 unsigned long val;
1307 int err;
1308
1309 err = kstrtoul(buf, 10, &val);
1310 if (err)
1311 return err;
1312
1313 mutex_lock(&data->update_lock);
1314 data->pwm1.auto_pwm_min = clamp_val(val, 0, 255);
1315 if (data->pwm1.enable == 2) { /* apply immediately */
1316 data->pwm1.pwm = PWM_TO_REG((data->pwm1.pwm & 0x0f) |
1317 PWM_MIN_TO_REG(data->pwm1.auto_pwm_min));
1318 adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm);
1319 }
1320 mutex_unlock(&data->update_lock);
1321 return count;
1322 }
1323
1324 static ssize_t temp1_auto_point2_pwm_show(struct device *dev,
1325 struct device_attribute *attr,
1326 char *buf)
1327 {
1328 return sprintf(buf, "%d\n", ADM1026_PWM_MAX);
1329 }
1330
1331 static ssize_t pwm1_enable_show(struct device *dev,
1332 struct device_attribute *attr, char *buf)
1333 {
1334 struct adm1026_data *data = adm1026_update_device(dev);
1335 return sprintf(buf, "%d\n", data->pwm1.enable);
1336 }
1337
1338 static ssize_t pwm1_enable_store(struct device *dev,
1339 struct device_attribute *attr,
1340 const char *buf, size_t count)
1341 {
1342 struct adm1026_data *data = dev_get_drvdata(dev);
1343 struct i2c_client *client = data->client;
1344 int old_enable;
1345 unsigned long val;
1346 int err;
1347
1348 err = kstrtoul(buf, 10, &val);
1349 if (err)
1350 return err;
1351
1352 if (val >= 3)
1353 return -EINVAL;
1354
1355 mutex_lock(&data->update_lock);
1356 old_enable = data->pwm1.enable;
1357 data->pwm1.enable = val;
1358 data->config1 = (data->config1 & ~CFG1_PWM_AFC)
1359 | ((val == 2) ? CFG1_PWM_AFC : 0);
1360 adm1026_write_value(client, ADM1026_REG_CONFIG1, data->config1);
1361 if (val == 2) { /* apply pwm1_auto_pwm_min to pwm1 */
1362 data->pwm1.pwm = PWM_TO_REG((data->pwm1.pwm & 0x0f) |
1363 PWM_MIN_TO_REG(data->pwm1.auto_pwm_min));
1364 adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm);
1365 } else if (!((old_enable == 1) && (val == 1))) {
1366 /* set pwm to safe value */
1367 data->pwm1.pwm = 255;
1368 adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm);
1369 }
1370 mutex_unlock(&data->update_lock);
1371
1372 return count;
1373 }
1374
1375 /* enable PWM fan control */
1376 static DEVICE_ATTR_RW(pwm1);
1377 static DEVICE_ATTR(pwm2, 0644, pwm1_show, pwm1_store);
1378 static DEVICE_ATTR(pwm3, 0644, pwm1_show, pwm1_store);
1379 static DEVICE_ATTR_RW(pwm1_enable);
1380 static DEVICE_ATTR(pwm2_enable, 0644, pwm1_enable_show,
1381 pwm1_enable_store);
1382 static DEVICE_ATTR(pwm3_enable, 0644, pwm1_enable_show,
1383 pwm1_enable_store);
1384 static DEVICE_ATTR_RW(temp1_auto_point1_pwm);
1385 static DEVICE_ATTR(temp2_auto_point1_pwm, 0644,
1386 temp1_auto_point1_pwm_show, temp1_auto_point1_pwm_store);
1387 static DEVICE_ATTR(temp3_auto_point1_pwm, 0644,
1388 temp1_auto_point1_pwm_show, temp1_auto_point1_pwm_store);
1389
1390 static DEVICE_ATTR_RO(temp1_auto_point2_pwm);
1391 static DEVICE_ATTR(temp2_auto_point2_pwm, 0444, temp1_auto_point2_pwm_show,
1392 NULL);
1393 static DEVICE_ATTR(temp3_auto_point2_pwm, 0444, temp1_auto_point2_pwm_show,
1394 NULL);
1395
1396 static struct attribute *adm1026_attributes[] = {
1397 &sensor_dev_attr_in0_input.dev_attr.attr,
1398 &sensor_dev_attr_in0_max.dev_attr.attr,
1399 &sensor_dev_attr_in0_min.dev_attr.attr,
1400 &sensor_dev_attr_in0_alarm.dev_attr.attr,
1401 &sensor_dev_attr_in1_input.dev_attr.attr,
1402 &sensor_dev_attr_in1_max.dev_attr.attr,
1403 &sensor_dev_attr_in1_min.dev_attr.attr,
1404 &sensor_dev_attr_in1_alarm.dev_attr.attr,
1405 &sensor_dev_attr_in2_input.dev_attr.attr,
1406 &sensor_dev_attr_in2_max.dev_attr.attr,
1407 &sensor_dev_attr_in2_min.dev_attr.attr,
1408 &sensor_dev_attr_in2_alarm.dev_attr.attr,
1409 &sensor_dev_attr_in3_input.dev_attr.attr,
1410 &sensor_dev_attr_in3_max.dev_attr.attr,
1411 &sensor_dev_attr_in3_min.dev_attr.attr,
1412 &sensor_dev_attr_in3_alarm.dev_attr.attr,
1413 &sensor_dev_attr_in4_input.dev_attr.attr,
1414 &sensor_dev_attr_in4_max.dev_attr.attr,
1415 &sensor_dev_attr_in4_min.dev_attr.attr,
1416 &sensor_dev_attr_in4_alarm.dev_attr.attr,
1417 &sensor_dev_attr_in5_input.dev_attr.attr,
1418 &sensor_dev_attr_in5_max.dev_attr.attr,
1419 &sensor_dev_attr_in5_min.dev_attr.attr,
1420 &sensor_dev_attr_in5_alarm.dev_attr.attr,
1421 &sensor_dev_attr_in6_input.dev_attr.attr,
1422 &sensor_dev_attr_in6_max.dev_attr.attr,
1423 &sensor_dev_attr_in6_min.dev_attr.attr,
1424 &sensor_dev_attr_in6_alarm.dev_attr.attr,
1425 &sensor_dev_attr_in7_input.dev_attr.attr,
1426 &sensor_dev_attr_in7_max.dev_attr.attr,
1427 &sensor_dev_attr_in7_min.dev_attr.attr,
1428 &sensor_dev_attr_in7_alarm.dev_attr.attr,
1429 &sensor_dev_attr_in10_input.dev_attr.attr,
1430 &sensor_dev_attr_in10_max.dev_attr.attr,
1431 &sensor_dev_attr_in10_min.dev_attr.attr,
1432 &sensor_dev_attr_in10_alarm.dev_attr.attr,
1433 &sensor_dev_attr_in11_input.dev_attr.attr,
1434 &sensor_dev_attr_in11_max.dev_attr.attr,
1435 &sensor_dev_attr_in11_min.dev_attr.attr,
1436 &sensor_dev_attr_in11_alarm.dev_attr.attr,
1437 &sensor_dev_attr_in12_input.dev_attr.attr,
1438 &sensor_dev_attr_in12_max.dev_attr.attr,
1439 &sensor_dev_attr_in12_min.dev_attr.attr,
1440 &sensor_dev_attr_in12_alarm.dev_attr.attr,
1441 &sensor_dev_attr_in13_input.dev_attr.attr,
1442 &sensor_dev_attr_in13_max.dev_attr.attr,
1443 &sensor_dev_attr_in13_min.dev_attr.attr,
1444 &sensor_dev_attr_in13_alarm.dev_attr.attr,
1445 &sensor_dev_attr_in14_input.dev_attr.attr,
1446 &sensor_dev_attr_in14_max.dev_attr.attr,
1447 &sensor_dev_attr_in14_min.dev_attr.attr,
1448 &sensor_dev_attr_in14_alarm.dev_attr.attr,
1449 &sensor_dev_attr_in15_input.dev_attr.attr,
1450 &sensor_dev_attr_in15_max.dev_attr.attr,
1451 &sensor_dev_attr_in15_min.dev_attr.attr,
1452 &sensor_dev_attr_in15_alarm.dev_attr.attr,
1453 &sensor_dev_attr_in16_input.dev_attr.attr,
1454 &sensor_dev_attr_in16_max.dev_attr.attr,
1455 &sensor_dev_attr_in16_min.dev_attr.attr,
1456 &sensor_dev_attr_in16_alarm.dev_attr.attr,
1457 &sensor_dev_attr_fan1_input.dev_attr.attr,
1458 &sensor_dev_attr_fan1_div.dev_attr.attr,
1459 &sensor_dev_attr_fan1_min.dev_attr.attr,
1460 &sensor_dev_attr_fan1_alarm.dev_attr.attr,
1461 &sensor_dev_attr_fan2_input.dev_attr.attr,
1462 &sensor_dev_attr_fan2_div.dev_attr.attr,
1463 &sensor_dev_attr_fan2_min.dev_attr.attr,
1464 &sensor_dev_attr_fan2_alarm.dev_attr.attr,
1465 &sensor_dev_attr_fan3_input.dev_attr.attr,
1466 &sensor_dev_attr_fan3_div.dev_attr.attr,
1467 &sensor_dev_attr_fan3_min.dev_attr.attr,
1468 &sensor_dev_attr_fan3_alarm.dev_attr.attr,
1469 &sensor_dev_attr_fan4_input.dev_attr.attr,
1470 &sensor_dev_attr_fan4_div.dev_attr.attr,
1471 &sensor_dev_attr_fan4_min.dev_attr.attr,
1472 &sensor_dev_attr_fan4_alarm.dev_attr.attr,
1473 &sensor_dev_attr_fan5_input.dev_attr.attr,
1474 &sensor_dev_attr_fan5_div.dev_attr.attr,
1475 &sensor_dev_attr_fan5_min.dev_attr.attr,
1476 &sensor_dev_attr_fan5_alarm.dev_attr.attr,
1477 &sensor_dev_attr_fan6_input.dev_attr.attr,
1478 &sensor_dev_attr_fan6_div.dev_attr.attr,
1479 &sensor_dev_attr_fan6_min.dev_attr.attr,
1480 &sensor_dev_attr_fan6_alarm.dev_attr.attr,
1481 &sensor_dev_attr_fan7_input.dev_attr.attr,
1482 &sensor_dev_attr_fan7_div.dev_attr.attr,
1483 &sensor_dev_attr_fan7_min.dev_attr.attr,
1484 &sensor_dev_attr_fan7_alarm.dev_attr.attr,
1485 &sensor_dev_attr_fan8_input.dev_attr.attr,
1486 &sensor_dev_attr_fan8_div.dev_attr.attr,
1487 &sensor_dev_attr_fan8_min.dev_attr.attr,
1488 &sensor_dev_attr_fan8_alarm.dev_attr.attr,
1489 &sensor_dev_attr_temp1_input.dev_attr.attr,
1490 &sensor_dev_attr_temp1_max.dev_attr.attr,
1491 &sensor_dev_attr_temp1_min.dev_attr.attr,
1492 &sensor_dev_attr_temp1_alarm.dev_attr.attr,
1493 &sensor_dev_attr_temp2_input.dev_attr.attr,
1494 &sensor_dev_attr_temp2_max.dev_attr.attr,
1495 &sensor_dev_attr_temp2_min.dev_attr.attr,
1496 &sensor_dev_attr_temp2_alarm.dev_attr.attr,
1497 &sensor_dev_attr_temp1_offset.dev_attr.attr,
1498 &sensor_dev_attr_temp2_offset.dev_attr.attr,
1499 &sensor_dev_attr_temp1_auto_point1_temp.dev_attr.attr,
1500 &sensor_dev_attr_temp2_auto_point1_temp.dev_attr.attr,
1501 &sensor_dev_attr_temp1_auto_point1_temp_hyst.dev_attr.attr,
1502 &sensor_dev_attr_temp2_auto_point1_temp_hyst.dev_attr.attr,
1503 &sensor_dev_attr_temp1_auto_point2_temp.dev_attr.attr,
1504 &sensor_dev_attr_temp2_auto_point2_temp.dev_attr.attr,
1505 &sensor_dev_attr_temp1_crit.dev_attr.attr,
1506 &sensor_dev_attr_temp2_crit.dev_attr.attr,
1507 &dev_attr_temp1_crit_enable.attr,
1508 &dev_attr_temp2_crit_enable.attr,
1509 &dev_attr_cpu0_vid.attr,
1510 &dev_attr_vrm.attr,
1511 &dev_attr_alarms.attr,
1512 &dev_attr_alarm_mask.attr,
1513 &dev_attr_gpio.attr,
1514 &dev_attr_gpio_mask.attr,
1515 &dev_attr_pwm1.attr,
1516 &dev_attr_pwm2.attr,
1517 &dev_attr_pwm3.attr,
1518 &dev_attr_pwm1_enable.attr,
1519 &dev_attr_pwm2_enable.attr,
1520 &dev_attr_pwm3_enable.attr,
1521 &dev_attr_temp1_auto_point1_pwm.attr,
1522 &dev_attr_temp2_auto_point1_pwm.attr,
1523 &dev_attr_temp1_auto_point2_pwm.attr,
1524 &dev_attr_temp2_auto_point2_pwm.attr,
1525 &dev_attr_analog_out.attr,
1526 NULL
1527 };
1528
1529 static const struct attribute_group adm1026_group = {
1530 .attrs = adm1026_attributes,
1531 };
1532
1533 static struct attribute *adm1026_attributes_temp3[] = {
1534 &sensor_dev_attr_temp3_input.dev_attr.attr,
1535 &sensor_dev_attr_temp3_max.dev_attr.attr,
1536 &sensor_dev_attr_temp3_min.dev_attr.attr,
1537 &sensor_dev_attr_temp3_alarm.dev_attr.attr,
1538 &sensor_dev_attr_temp3_offset.dev_attr.attr,
1539 &sensor_dev_attr_temp3_auto_point1_temp.dev_attr.attr,
1540 &sensor_dev_attr_temp3_auto_point1_temp_hyst.dev_attr.attr,
1541 &sensor_dev_attr_temp3_auto_point2_temp.dev_attr.attr,
1542 &sensor_dev_attr_temp3_crit.dev_attr.attr,
1543 &dev_attr_temp3_crit_enable.attr,
1544 &dev_attr_temp3_auto_point1_pwm.attr,
1545 &dev_attr_temp3_auto_point2_pwm.attr,
1546 NULL
1547 };
1548
1549 static const struct attribute_group adm1026_group_temp3 = {
1550 .attrs = adm1026_attributes_temp3,
1551 };
1552
1553 static struct attribute *adm1026_attributes_in8_9[] = {
1554 &sensor_dev_attr_in8_input.dev_attr.attr,
1555 &sensor_dev_attr_in8_max.dev_attr.attr,
1556 &sensor_dev_attr_in8_min.dev_attr.attr,
1557 &sensor_dev_attr_in8_alarm.dev_attr.attr,
1558 &sensor_dev_attr_in9_input.dev_attr.attr,
1559 &sensor_dev_attr_in9_max.dev_attr.attr,
1560 &sensor_dev_attr_in9_min.dev_attr.attr,
1561 &sensor_dev_attr_in9_alarm.dev_attr.attr,
1562 NULL
1563 };
1564
1565 static const struct attribute_group adm1026_group_in8_9 = {
1566 .attrs = adm1026_attributes_in8_9,
1567 };
1568
1569 /* Return 0 if detection is successful, -ENODEV otherwise */
1570 static int adm1026_detect(struct i2c_client *client,
1571 struct i2c_board_info *info)
1572 {
1573 struct i2c_adapter *adapter = client->adapter;
1574 int address = client->addr;
1575 int company, verstep;
1576
1577 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
1578 /* We need to be able to do byte I/O */
1579 return -ENODEV;
1580 }
1581
1582 /* Now, we do the remaining detection. */
1583
1584 company = adm1026_read_value(client, ADM1026_REG_COMPANY);
1585 verstep = adm1026_read_value(client, ADM1026_REG_VERSTEP);
1586
1587 dev_dbg(&adapter->dev,
1588 "Detecting device at %d,0x%02x with COMPANY: 0x%02x and VERSTEP: 0x%02x\n",
1589 i2c_adapter_id(client->adapter), client->addr,
1590 company, verstep);
1591
1592 /* Determine the chip type. */
1593 dev_dbg(&adapter->dev, "Autodetecting device at %d,0x%02x...\n",
1594 i2c_adapter_id(adapter), address);
1595 if (company == ADM1026_COMPANY_ANALOG_DEV
1596 && verstep == ADM1026_VERSTEP_ADM1026) {
1597 /* Analog Devices ADM1026 */
1598 } else if (company == ADM1026_COMPANY_ANALOG_DEV
1599 && (verstep & 0xf0) == ADM1026_VERSTEP_GENERIC) {
1600 dev_err(&adapter->dev,
1601 "Unrecognized stepping 0x%02x. Defaulting to ADM1026.\n",
1602 verstep);
1603 } else if ((verstep & 0xf0) == ADM1026_VERSTEP_GENERIC) {
1604 dev_err(&adapter->dev,
1605 "Found version/stepping 0x%02x. Assuming generic ADM1026.\n",
1606 verstep);
1607 } else {
1608 dev_dbg(&adapter->dev, "Autodetection failed\n");
1609 /* Not an ADM1026... */
1610 return -ENODEV;
1611 }
1612
1613 strlcpy(info->type, "adm1026", I2C_NAME_SIZE);
1614
1615 return 0;
1616 }
1617
1618 static void adm1026_print_gpio(struct i2c_client *client)
1619 {
1620 struct adm1026_data *data = i2c_get_clientdata(client);
1621 int i;
1622
1623 dev_dbg(&client->dev, "GPIO config is:\n");
1624 for (i = 0; i <= 7; ++i) {
1625 if (data->config2 & (1 << i)) {
1626 dev_dbg(&client->dev, "\t%sGP%s%d\n",
1627 data->gpio_config[i] & 0x02 ? "" : "!",
1628 data->gpio_config[i] & 0x01 ? "OUT" : "IN",
1629 i);
1630 } else {
1631 dev_dbg(&client->dev, "\tFAN%d\n", i);
1632 }
1633 }
1634 for (i = 8; i <= 15; ++i) {
1635 dev_dbg(&client->dev, "\t%sGP%s%d\n",
1636 data->gpio_config[i] & 0x02 ? "" : "!",
1637 data->gpio_config[i] & 0x01 ? "OUT" : "IN",
1638 i);
1639 }
1640 if (data->config3 & CFG3_GPIO16_ENABLE) {
1641 dev_dbg(&client->dev, "\t%sGP%s16\n",
1642 data->gpio_config[16] & 0x02 ? "" : "!",
1643 data->gpio_config[16] & 0x01 ? "OUT" : "IN");
1644 } else {
1645 /* GPIO16 is THERM */
1646 dev_dbg(&client->dev, "\tTHERM\n");
1647 }
1648 }
1649
1650 static void adm1026_fixup_gpio(struct i2c_client *client)
1651 {
1652 struct adm1026_data *data = i2c_get_clientdata(client);
1653 int i;
1654 int value;
1655
1656 /* Make the changes requested. */
1657 /*
1658 * We may need to unlock/stop monitoring or soft-reset the
1659 * chip before we can make changes. This hasn't been
1660 * tested much. FIXME
1661 */
1662
1663 /* Make outputs */
1664 for (i = 0; i <= 16; ++i) {
1665 if (gpio_output[i] >= 0 && gpio_output[i] <= 16)
1666 data->gpio_config[gpio_output[i]] |= 0x01;
1667 /* if GPIO0-7 is output, it isn't a FAN tach */
1668 if (gpio_output[i] >= 0 && gpio_output[i] <= 7)
1669 data->config2 |= 1 << gpio_output[i];
1670 }
1671
1672 /* Input overrides output */
1673 for (i = 0; i <= 16; ++i) {
1674 if (gpio_input[i] >= 0 && gpio_input[i] <= 16)
1675 data->gpio_config[gpio_input[i]] &= ~0x01;
1676 /* if GPIO0-7 is input, it isn't a FAN tach */
1677 if (gpio_input[i] >= 0 && gpio_input[i] <= 7)
1678 data->config2 |= 1 << gpio_input[i];
1679 }
1680
1681 /* Inverted */
1682 for (i = 0; i <= 16; ++i) {
1683 if (gpio_inverted[i] >= 0 && gpio_inverted[i] <= 16)
1684 data->gpio_config[gpio_inverted[i]] &= ~0x02;
1685 }
1686
1687 /* Normal overrides inverted */
1688 for (i = 0; i <= 16; ++i) {
1689 if (gpio_normal[i] >= 0 && gpio_normal[i] <= 16)
1690 data->gpio_config[gpio_normal[i]] |= 0x02;
1691 }
1692
1693 /* Fan overrides input and output */
1694 for (i = 0; i <= 7; ++i) {
1695 if (gpio_fan[i] >= 0 && gpio_fan[i] <= 7)
1696 data->config2 &= ~(1 << gpio_fan[i]);
1697 }
1698
1699 /* Write new configs to registers */
1700 adm1026_write_value(client, ADM1026_REG_CONFIG2, data->config2);
1701 data->config3 = (data->config3 & 0x3f)
1702 | ((data->gpio_config[16] & 0x03) << 6);
1703 adm1026_write_value(client, ADM1026_REG_CONFIG3, data->config3);
1704 for (i = 15, value = 0; i >= 0; --i) {
1705 value <<= 2;
1706 value |= data->gpio_config[i] & 0x03;
1707 if ((i & 0x03) == 0) {
1708 adm1026_write_value(client,
1709 ADM1026_REG_GPIO_CFG_0_3 + i/4,
1710 value);
1711 value = 0;
1712 }
1713 }
1714
1715 /* Print the new config */
1716 adm1026_print_gpio(client);
1717 }
1718
1719 static void adm1026_init_client(struct i2c_client *client)
1720 {
1721 int value, i;
1722 struct adm1026_data *data = i2c_get_clientdata(client);
1723
1724 dev_dbg(&client->dev, "Initializing device\n");
1725 /* Read chip config */
1726 data->config1 = adm1026_read_value(client, ADM1026_REG_CONFIG1);
1727 data->config2 = adm1026_read_value(client, ADM1026_REG_CONFIG2);
1728 data->config3 = adm1026_read_value(client, ADM1026_REG_CONFIG3);
1729
1730 /* Inform user of chip config */
1731 dev_dbg(&client->dev, "ADM1026_REG_CONFIG1 is: 0x%02x\n",
1732 data->config1);
1733 if ((data->config1 & CFG1_MONITOR) == 0) {
1734 dev_dbg(&client->dev,
1735 "Monitoring not currently enabled.\n");
1736 }
1737 if (data->config1 & CFG1_INT_ENABLE) {
1738 dev_dbg(&client->dev,
1739 "SMBALERT interrupts are enabled.\n");
1740 }
1741 if (data->config1 & CFG1_AIN8_9) {
1742 dev_dbg(&client->dev,
1743 "in8 and in9 enabled. temp3 disabled.\n");
1744 } else {
1745 dev_dbg(&client->dev,
1746 "temp3 enabled. in8 and in9 disabled.\n");
1747 }
1748 if (data->config1 & CFG1_THERM_HOT) {
1749 dev_dbg(&client->dev,
1750 "Automatic THERM, PWM, and temp limits enabled.\n");
1751 }
1752
1753 if (data->config3 & CFG3_GPIO16_ENABLE) {
1754 dev_dbg(&client->dev,
1755 "GPIO16 enabled. THERM pin disabled.\n");
1756 } else {
1757 dev_dbg(&client->dev,
1758 "THERM pin enabled. GPIO16 disabled.\n");
1759 }
1760 if (data->config3 & CFG3_VREF_250)
1761 dev_dbg(&client->dev, "Vref is 2.50 Volts.\n");
1762 else
1763 dev_dbg(&client->dev, "Vref is 1.82 Volts.\n");
1764 /* Read and pick apart the existing GPIO configuration */
1765 value = 0;
1766 for (i = 0; i <= 15; ++i) {
1767 if ((i & 0x03) == 0) {
1768 value = adm1026_read_value(client,
1769 ADM1026_REG_GPIO_CFG_0_3 + i / 4);
1770 }
1771 data->gpio_config[i] = value & 0x03;
1772 value >>= 2;
1773 }
1774 data->gpio_config[16] = (data->config3 >> 6) & 0x03;
1775
1776 /* ... and then print it */
1777 adm1026_print_gpio(client);
1778
1779 /*
1780 * If the user asks us to reprogram the GPIO config, then
1781 * do it now.
1782 */
1783 if (gpio_input[0] != -1 || gpio_output[0] != -1
1784 || gpio_inverted[0] != -1 || gpio_normal[0] != -1
1785 || gpio_fan[0] != -1) {
1786 adm1026_fixup_gpio(client);
1787 }
1788
1789 /*
1790 * WE INTENTIONALLY make no changes to the limits,
1791 * offsets, pwms, fans and zones. If they were
1792 * configured, we don't want to mess with them.
1793 * If they weren't, the default is 100% PWM, no
1794 * control and will suffice until 'sensors -s'
1795 * can be run by the user. We DO set the default
1796 * value for pwm1.auto_pwm_min to its maximum
1797 * so that enabling automatic pwm fan control
1798 * without first setting a value for pwm1.auto_pwm_min
1799 * will not result in potentially dangerous fan speed decrease.
1800 */
1801 data->pwm1.auto_pwm_min = 255;
1802 /* Start monitoring */
1803 value = adm1026_read_value(client, ADM1026_REG_CONFIG1);
1804 /* Set MONITOR, clear interrupt acknowledge and s/w reset */
1805 value = (value | CFG1_MONITOR) & (~CFG1_INT_CLEAR & ~CFG1_RESET);
1806 dev_dbg(&client->dev, "Setting CONFIG to: 0x%02x\n", value);
1807 data->config1 = value;
1808 adm1026_write_value(client, ADM1026_REG_CONFIG1, value);
1809
1810 /* initialize fan_div[] to hardware defaults */
1811 value = adm1026_read_value(client, ADM1026_REG_FAN_DIV_0_3) |
1812 (adm1026_read_value(client, ADM1026_REG_FAN_DIV_4_7) << 8);
1813 for (i = 0; i <= 7; ++i) {
1814 data->fan_div[i] = DIV_FROM_REG(value & 0x03);
1815 value >>= 2;
1816 }
1817 }
1818
1819 static int adm1026_probe(struct i2c_client *client)
1820 {
1821 struct device *dev = &client->dev;
1822 struct device *hwmon_dev;
1823 struct adm1026_data *data;
1824
1825 data = devm_kzalloc(dev, sizeof(struct adm1026_data), GFP_KERNEL);
1826 if (!data)
1827 return -ENOMEM;
1828
1829 i2c_set_clientdata(client, data);
1830 data->client = client;
1831 mutex_init(&data->update_lock);
1832
1833 /* Set the VRM version */
1834 data->vrm = vid_which_vrm();
1835
1836 /* Initialize the ADM1026 chip */
1837 adm1026_init_client(client);
1838
1839 /* sysfs hooks */
1840 data->groups[0] = &adm1026_group;
1841 if (data->config1 & CFG1_AIN8_9)
1842 data->groups[1] = &adm1026_group_in8_9;
1843 else
1844 data->groups[1] = &adm1026_group_temp3;
1845
1846 hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
1847 data, data->groups);
1848 return PTR_ERR_OR_ZERO(hwmon_dev);
1849 }
1850
1851 static const struct i2c_device_id adm1026_id[] = {
1852 { "adm1026", 0 },
1853 { }
1854 };
1855 MODULE_DEVICE_TABLE(i2c, adm1026_id);
1856
1857 static struct i2c_driver adm1026_driver = {
1858 .class = I2C_CLASS_HWMON,
1859 .driver = {
1860 .name = "adm1026",
1861 },
1862 .probe_new = adm1026_probe,
1863 .id_table = adm1026_id,
1864 .detect = adm1026_detect,
1865 .address_list = normal_i2c,
1866 };
1867
1868 module_i2c_driver(adm1026_driver);
1869
1870 MODULE_LICENSE("GPL");
1871 MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, "
1872 "Justin Thiessen <jthiessen@penguincomputing.com>");
1873 MODULE_DESCRIPTION("ADM1026 driver");
Linux with added FPC-III support