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10#include <linux/interrupt.h>
11#include <linux/gpio.h>
12#include <linux/workqueue.h>
13#include <linux/device.h>
14#include <linux/kernel.h>
15#include <linux/slab.h>
16#include <linux/sysfs.h>
17#include <linux/list.h>
18#include <linux/i2c.h>
19#include <linux/rtc.h>
20#include <linux/module.h>
21
22#include <linux/iio/iio.h>
23#include <linux/iio/events.h>
24#include <linux/iio/sysfs.h>
25#include "adt7316.h"
26
27
28
29
30#define ADT7316_INT_STAT1 0x0
31#define ADT7316_INT_STAT2 0x1
32#define ADT7316_LSB_IN_TEMP_VDD 0x3
33#define ADT7316_LSB_IN_TEMP_MASK 0x3
34#define ADT7316_LSB_VDD_MASK 0xC
35#define ADT7316_LSB_VDD_OFFSET 2
36#define ADT7316_LSB_EX_TEMP_AIN 0x4
37#define ADT7316_LSB_EX_TEMP_MASK 0x3
38#define ADT7516_LSB_AIN_SHIFT 2
39#define ADT7316_AD_MSB_DATA_BASE 0x6
40#define ADT7316_AD_MSB_DATA_REGS 3
41#define ADT7516_AD_MSB_DATA_REGS 6
42#define ADT7316_MSB_VDD 0x6
43#define ADT7316_MSB_IN_TEMP 0x7
44#define ADT7316_MSB_EX_TEMP 0x8
45#define ADT7516_MSB_AIN1 0x8
46#define ADT7516_MSB_AIN2 0x9
47#define ADT7516_MSB_AIN3 0xA
48#define ADT7516_MSB_AIN4 0xB
49#define ADT7316_DA_DATA_BASE 0x10
50#define ADT7316_DA_MSB_DATA_REGS 4
51#define ADT7316_LSB_DAC_A 0x10
52#define ADT7316_MSB_DAC_A 0x11
53#define ADT7316_LSB_DAC_B 0x12
54#define ADT7316_MSB_DAC_B 0x13
55#define ADT7316_LSB_DAC_C 0x14
56#define ADT7316_MSB_DAC_C 0x15
57#define ADT7316_LSB_DAC_D 0x16
58#define ADT7316_MSB_DAC_D 0x17
59#define ADT7316_CONFIG1 0x18
60#define ADT7316_CONFIG2 0x19
61#define ADT7316_CONFIG3 0x1A
62#define ADT7316_LDAC_CONFIG 0x1B
63#define ADT7316_DAC_CONFIG 0x1C
64#define ADT7316_INT_MASK1 0x1D
65#define ADT7316_INT_MASK2 0x1E
66#define ADT7316_IN_TEMP_OFFSET 0x1F
67#define ADT7316_EX_TEMP_OFFSET 0x20
68#define ADT7316_IN_ANALOG_TEMP_OFFSET 0x21
69#define ADT7316_EX_ANALOG_TEMP_OFFSET 0x22
70#define ADT7316_VDD_HIGH 0x23
71#define ADT7316_VDD_LOW 0x24
72#define ADT7316_IN_TEMP_HIGH 0x25
73#define ADT7316_IN_TEMP_LOW 0x26
74#define ADT7316_EX_TEMP_HIGH 0x27
75#define ADT7316_EX_TEMP_LOW 0x28
76#define ADT7516_AIN2_HIGH 0x2B
77#define ADT7516_AIN2_LOW 0x2C
78#define ADT7516_AIN3_HIGH 0x2D
79#define ADT7516_AIN3_LOW 0x2E
80#define ADT7516_AIN4_HIGH 0x2F
81#define ADT7516_AIN4_LOW 0x30
82#define ADT7316_DEVICE_ID 0x4D
83#define ADT7316_MANUFACTURE_ID 0x4E
84#define ADT7316_DEVICE_REV 0x4F
85#define ADT7316_SPI_LOCK_STAT 0x7F
86
87
88
89
90#define ADT7316_EN 0x1
91#define ADT7516_SEL_EX_TEMP 0x4
92#define ADT7516_SEL_AIN1_2_EX_TEMP_MASK 0x6
93#define ADT7516_SEL_AIN3 0x8
94#define ADT7316_INT_EN 0x20
95#define ADT7316_INT_POLARITY 0x40
96#define ADT7316_PD 0x80
97
98
99
100
101#define ADT7316_AD_SINGLE_CH_MASK 0x3
102#define ADT7516_AD_SINGLE_CH_MASK 0x7
103#define ADT7316_AD_SINGLE_CH_VDD 0
104#define ADT7316_AD_SINGLE_CH_IN 1
105#define ADT7316_AD_SINGLE_CH_EX 2
106#define ADT7516_AD_SINGLE_CH_AIN1 2
107#define ADT7516_AD_SINGLE_CH_AIN2 3
108#define ADT7516_AD_SINGLE_CH_AIN3 4
109#define ADT7516_AD_SINGLE_CH_AIN4 5
110#define ADT7316_AD_SINGLE_CH_MODE 0x10
111#define ADT7316_DISABLE_AVERAGING 0x20
112#define ADT7316_EN_SMBUS_TIMEOUT 0x40
113#define ADT7316_RESET 0x80
114
115
116
117
118#define ADT7316_ADCLK_22_5 0x1
119#define ADT7316_DA_HIGH_RESOLUTION 0x2
120#define ADT7316_DA_EN_VIA_DAC_LDCA 0x4
121#define ADT7516_AIN_IN_VREF 0x10
122#define ADT7316_EN_IN_TEMP_PROP_DACA 0x20
123#define ADT7316_EN_EX_TEMP_PROP_DACB 0x40
124
125
126
127
128#define ADT7316_DA_2VREF_CH_MASK 0xF
129#define ADT7316_DA_EN_MODE_MASK 0x30
130#define ADT7316_DA_EN_MODE_SINGLE 0x00
131#define ADT7316_DA_EN_MODE_AB_CD 0x10
132#define ADT7316_DA_EN_MODE_ABCD 0x20
133#define ADT7316_DA_EN_MODE_LDAC 0x30
134#define ADT7316_VREF_BYPASS_DAC_AB 0x40
135#define ADT7316_VREF_BYPASS_DAC_CD 0x80
136
137
138
139
140#define ADT7316_LDAC_EN_DA_MASK 0xF
141#define ADT7316_DAC_IN_VREF 0x10
142#define ADT7516_DAC_AB_IN_VREF 0x10
143#define ADT7516_DAC_CD_IN_VREF 0x20
144#define ADT7516_DAC_IN_VREF_OFFSET 4
145#define ADT7516_DAC_IN_VREF_MASK 0x30
146
147
148
149
150#define ADT7316_INT_MASK2_VDD 0x10
151
152
153
154
155#define ADT7316_VALUE_MASK 0xfff
156#define ADT7316_T_VALUE_SIGN 0x400
157#define ADT7316_T_VALUE_FLOAT_OFFSET 2
158#define ADT7316_T_VALUE_FLOAT_MASK 0x2
159
160
161
162
163#define ID_ADT7316 0x1
164#define ID_ADT7317 0x2
165#define ID_ADT7318 0x3
166#define ID_ADT7516 0x11
167#define ID_ADT7517 0x12
168#define ID_ADT7519 0x14
169
170#define ID_FAMILY_MASK 0xF0
171#define ID_ADT73XX 0x0
172#define ID_ADT75XX 0x10
173
174
175
176
177
178struct adt7316_chip_info {
179 struct adt7316_bus bus;
180 u16 ldac_pin;
181 u16 int_mask;
182 u8 config1;
183 u8 config2;
184 u8 config3;
185 u8 dac_config;
186 u8 ldac_config;
187 u8 dac_bits;
188 u8 id;
189};
190
191
192
193
194
195#define ADT7316_IN_TEMP_HIGH_INT_MASK 0x1
196#define ADT7316_IN_TEMP_LOW_INT_MASK 0x2
197#define ADT7316_EX_TEMP_HIGH_INT_MASK 0x4
198#define ADT7316_EX_TEMP_LOW_INT_MASK 0x8
199#define ADT7316_EX_TEMP_FAULT_INT_MASK 0x10
200#define ADT7516_AIN1_INT_MASK 0x4
201#define ADT7516_AIN2_INT_MASK 0x20
202#define ADT7516_AIN3_INT_MASK 0x40
203#define ADT7516_AIN4_INT_MASK 0x80
204#define ADT7316_VDD_INT_MASK 0x100
205#define ADT7316_TEMP_INT_MASK 0x1F
206#define ADT7516_AIN_INT_MASK 0xE0
207#define ADT7316_TEMP_AIN_INT_MASK \
208 (ADT7316_TEMP_INT_MASK)
209
210
211
212
213
214struct adt7316_limit_regs {
215 u16 data_high;
216 u16 data_low;
217};
218
219static ssize_t adt7316_show_enabled(struct device *dev,
220 struct device_attribute *attr,
221 char *buf)
222{
223 struct iio_dev *dev_info = dev_to_iio_dev(dev);
224 struct adt7316_chip_info *chip = iio_priv(dev_info);
225
226 return sprintf(buf, "%d\n", !!(chip->config1 & ADT7316_EN));
227}
228
229static ssize_t _adt7316_store_enabled(struct adt7316_chip_info *chip,
230 int enable)
231{
232 u8 config1;
233 int ret;
234
235 if (enable)
236 config1 = chip->config1 | ADT7316_EN;
237 else
238 config1 = chip->config1 & ~ADT7316_EN;
239
240 ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG1, config1);
241 if (ret)
242 return -EIO;
243
244 chip->config1 = config1;
245
246 return ret;
247
248}
249
250static ssize_t adt7316_store_enabled(struct device *dev,
251 struct device_attribute *attr,
252 const char *buf,
253 size_t len)
254{
255 struct iio_dev *dev_info = dev_to_iio_dev(dev);
256 struct adt7316_chip_info *chip = iio_priv(dev_info);
257 int enable;
258
259 if (buf[0] == '1')
260 enable = 1;
261 else
262 enable = 0;
263
264 if (_adt7316_store_enabled(chip, enable) < 0)
265 return -EIO;
266 else
267 return len;
268}
269
270static IIO_DEVICE_ATTR(enabled, S_IRUGO | S_IWUSR,
271 adt7316_show_enabled,
272 adt7316_store_enabled,
273 0);
274
275static ssize_t adt7316_show_select_ex_temp(struct device *dev,
276 struct device_attribute *attr,
277 char *buf)
278{
279 struct iio_dev *dev_info = dev_to_iio_dev(dev);
280 struct adt7316_chip_info *chip = iio_priv(dev_info);
281
282 if ((chip->id & ID_FAMILY_MASK) != ID_ADT75XX)
283 return -EPERM;
284
285 return sprintf(buf, "%d\n", !!(chip->config1 & ADT7516_SEL_EX_TEMP));
286}
287
288static ssize_t adt7316_store_select_ex_temp(struct device *dev,
289 struct device_attribute *attr,
290 const char *buf,
291 size_t len)
292{
293 struct iio_dev *dev_info = dev_to_iio_dev(dev);
294 struct adt7316_chip_info *chip = iio_priv(dev_info);
295 u8 config1;
296 int ret;
297
298 if ((chip->id & ID_FAMILY_MASK) != ID_ADT75XX)
299 return -EPERM;
300
301 config1 = chip->config1 & (~ADT7516_SEL_EX_TEMP);
302 if (buf[0] == '1')
303 config1 |= ADT7516_SEL_EX_TEMP;
304
305 ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG1, config1);
306 if (ret)
307 return -EIO;
308
309 chip->config1 = config1;
310
311 return len;
312}
313
314static IIO_DEVICE_ATTR(select_ex_temp, S_IRUGO | S_IWUSR,
315 adt7316_show_select_ex_temp,
316 adt7316_store_select_ex_temp,
317 0);
318
319static ssize_t adt7316_show_mode(struct device *dev,
320 struct device_attribute *attr,
321 char *buf)
322{
323 struct iio_dev *dev_info = dev_to_iio_dev(dev);
324 struct adt7316_chip_info *chip = iio_priv(dev_info);
325
326 if (chip->config2 & ADT7316_AD_SINGLE_CH_MODE)
327 return sprintf(buf, "single_channel\n");
328 else
329 return sprintf(buf, "round_robin\n");
330}
331
332static ssize_t adt7316_store_mode(struct device *dev,
333 struct device_attribute *attr,
334 const char *buf,
335 size_t len)
336{
337 struct iio_dev *dev_info = dev_to_iio_dev(dev);
338 struct adt7316_chip_info *chip = iio_priv(dev_info);
339 u8 config2;
340 int ret;
341
342 config2 = chip->config2 & (~ADT7316_AD_SINGLE_CH_MODE);
343 if (!memcmp(buf, "single_channel", 14))
344 config2 |= ADT7316_AD_SINGLE_CH_MODE;
345
346 ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG2, config2);
347 if (ret)
348 return -EIO;
349
350 chip->config2 = config2;
351
352 return len;
353}
354
355static IIO_DEVICE_ATTR(mode, S_IRUGO | S_IWUSR,
356 adt7316_show_mode,
357 adt7316_store_mode,
358 0);
359
360static ssize_t adt7316_show_all_modes(struct device *dev,
361 struct device_attribute *attr,
362 char *buf)
363{
364 return sprintf(buf, "single_channel\nround_robin\n");
365}
366
367static IIO_DEVICE_ATTR(all_modes, S_IRUGO, adt7316_show_all_modes, NULL, 0);
368
369static ssize_t adt7316_show_ad_channel(struct device *dev,
370 struct device_attribute *attr,
371 char *buf)
372{
373 struct iio_dev *dev_info = dev_to_iio_dev(dev);
374 struct adt7316_chip_info *chip = iio_priv(dev_info);
375
376 if (!(chip->config2 & ADT7316_AD_SINGLE_CH_MODE))
377 return -EPERM;
378
379 switch (chip->config2 & ADT7516_AD_SINGLE_CH_MASK) {
380 case ADT7316_AD_SINGLE_CH_VDD:
381 return sprintf(buf, "0 - VDD\n");
382 case ADT7316_AD_SINGLE_CH_IN:
383 return sprintf(buf, "1 - Internal Temperature\n");
384 case ADT7316_AD_SINGLE_CH_EX:
385 if (((chip->id & ID_FAMILY_MASK) == ID_ADT75XX) &&
386 (chip->config1 & ADT7516_SEL_AIN1_2_EX_TEMP_MASK) == 0)
387 return sprintf(buf, "2 - AIN1\n");
388 else
389 return sprintf(buf, "2 - External Temperature\n");
390 case ADT7516_AD_SINGLE_CH_AIN2:
391 if ((chip->config1 & ADT7516_SEL_AIN1_2_EX_TEMP_MASK) == 0)
392 return sprintf(buf, "3 - AIN2\n");
393 else
394 return sprintf(buf, "N/A\n");
395 case ADT7516_AD_SINGLE_CH_AIN3:
396 if (chip->config1 & ADT7516_SEL_AIN3)
397 return sprintf(buf, "4 - AIN3\n");
398 else
399 return sprintf(buf, "N/A\n");
400 case ADT7516_AD_SINGLE_CH_AIN4:
401 return sprintf(buf, "5 - AIN4\n");
402 default:
403 return sprintf(buf, "N/A\n");
404 }
405}
406
407static ssize_t adt7316_store_ad_channel(struct device *dev,
408 struct device_attribute *attr,
409 const char *buf,
410 size_t len)
411{
412 struct iio_dev *dev_info = dev_to_iio_dev(dev);
413 struct adt7316_chip_info *chip = iio_priv(dev_info);
414 u8 config2;
415 u8 data;
416 int ret;
417
418 if (!(chip->config2 & ADT7316_AD_SINGLE_CH_MODE))
419 return -EPERM;
420
421 ret = kstrtou8(buf, 10, &data);
422 if (ret)
423 return -EINVAL;
424
425 if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX) {
426 if (data > 5)
427 return -EINVAL;
428
429 config2 = chip->config2 & (~ADT7516_AD_SINGLE_CH_MASK);
430 } else {
431 if (data > 2)
432 return -EINVAL;
433
434 config2 = chip->config2 & (~ADT7316_AD_SINGLE_CH_MASK);
435 }
436
437
438 config2 |= data;
439
440 ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG2, config2);
441 if (ret)
442 return -EIO;
443
444 chip->config2 = config2;
445
446 return len;
447}
448
449static IIO_DEVICE_ATTR(ad_channel, S_IRUGO | S_IWUSR,
450 adt7316_show_ad_channel,
451 adt7316_store_ad_channel,
452 0);
453
454static ssize_t adt7316_show_all_ad_channels(struct device *dev,
455 struct device_attribute *attr,
456 char *buf)
457{
458 struct iio_dev *dev_info = dev_to_iio_dev(dev);
459 struct adt7316_chip_info *chip = iio_priv(dev_info);
460
461 if (!(chip->config2 & ADT7316_AD_SINGLE_CH_MODE))
462 return -EPERM;
463
464 if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX)
465 return sprintf(buf, "0 - VDD\n1 - Internal Temperature\n"
466 "2 - External Temperature or AIN1\n"
467 "3 - AIN2\n4 - AIN3\n5 - AIN4\n");
468 else
469 return sprintf(buf, "0 - VDD\n1 - Internal Temperature\n"
470 "2 - External Temperature\n");
471}
472
473static IIO_DEVICE_ATTR(all_ad_channels, S_IRUGO,
474 adt7316_show_all_ad_channels, NULL, 0);
475
476static ssize_t adt7316_show_disable_averaging(struct device *dev,
477 struct device_attribute *attr,
478 char *buf)
479{
480 struct iio_dev *dev_info = dev_to_iio_dev(dev);
481 struct adt7316_chip_info *chip = iio_priv(dev_info);
482
483 return sprintf(buf, "%d\n",
484 !!(chip->config2 & ADT7316_DISABLE_AVERAGING));
485}
486
487static ssize_t adt7316_store_disable_averaging(struct device *dev,
488 struct device_attribute *attr,
489 const char *buf,
490 size_t len)
491{
492 struct iio_dev *dev_info = dev_to_iio_dev(dev);
493 struct adt7316_chip_info *chip = iio_priv(dev_info);
494 u8 config2;
495 int ret;
496
497 config2 = chip->config2 & (~ADT7316_DISABLE_AVERAGING);
498 if (buf[0] == '1')
499 config2 |= ADT7316_DISABLE_AVERAGING;
500
501 ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG2, config2);
502 if (ret)
503 return -EIO;
504
505 chip->config2 = config2;
506
507 return len;
508}
509
510static IIO_DEVICE_ATTR(disable_averaging, S_IRUGO | S_IWUSR,
511 adt7316_show_disable_averaging,
512 adt7316_store_disable_averaging,
513 0);
514
515static ssize_t adt7316_show_enable_smbus_timeout(struct device *dev,
516 struct device_attribute *attr,
517 char *buf)
518{
519 struct iio_dev *dev_info = dev_to_iio_dev(dev);
520 struct adt7316_chip_info *chip = iio_priv(dev_info);
521
522 return sprintf(buf, "%d\n",
523 !!(chip->config2 & ADT7316_EN_SMBUS_TIMEOUT));
524}
525
526static ssize_t adt7316_store_enable_smbus_timeout(struct device *dev,
527 struct device_attribute *attr,
528 const char *buf,
529 size_t len)
530{
531 struct iio_dev *dev_info = dev_to_iio_dev(dev);
532 struct adt7316_chip_info *chip = iio_priv(dev_info);
533 u8 config2;
534 int ret;
535
536 config2 = chip->config2 & (~ADT7316_EN_SMBUS_TIMEOUT);
537 if (buf[0] == '1')
538 config2 |= ADT7316_EN_SMBUS_TIMEOUT;
539
540 ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG2, config2);
541 if (ret)
542 return -EIO;
543
544 chip->config2 = config2;
545
546 return len;
547}
548
549static IIO_DEVICE_ATTR(enable_smbus_timeout, S_IRUGO | S_IWUSR,
550 adt7316_show_enable_smbus_timeout,
551 adt7316_store_enable_smbus_timeout,
552 0);
553
554static ssize_t adt7316_show_powerdown(struct device *dev,
555 struct device_attribute *attr,
556 char *buf)
557{
558 struct iio_dev *dev_info = dev_to_iio_dev(dev);
559 struct adt7316_chip_info *chip = iio_priv(dev_info);
560
561 return sprintf(buf, "%d\n", !!(chip->config1 & ADT7316_PD));
562}
563
564static ssize_t adt7316_store_powerdown(struct device *dev,
565 struct device_attribute *attr,
566 const char *buf,
567 size_t len)
568{
569 struct iio_dev *dev_info = dev_to_iio_dev(dev);
570 struct adt7316_chip_info *chip = iio_priv(dev_info);
571 u8 config1;
572 int ret;
573
574 config1 = chip->config1 & (~ADT7316_PD);
575 if (buf[0] == '1')
576 config1 |= ADT7316_PD;
577
578 ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG1, config1);
579 if (ret)
580 return -EIO;
581
582 chip->config1 = config1;
583
584 return len;
585}
586
587static IIO_DEVICE_ATTR(powerdown, S_IRUGO | S_IWUSR,
588 adt7316_show_powerdown,
589 adt7316_store_powerdown,
590 0);
591
592static ssize_t adt7316_show_fast_ad_clock(struct device *dev,
593 struct device_attribute *attr,
594 char *buf)
595{
596 struct iio_dev *dev_info = dev_to_iio_dev(dev);
597 struct adt7316_chip_info *chip = iio_priv(dev_info);
598
599 return sprintf(buf, "%d\n", !!(chip->config3 & ADT7316_ADCLK_22_5));
600}
601
602static ssize_t adt7316_store_fast_ad_clock(struct device *dev,
603 struct device_attribute *attr,
604 const char *buf,
605 size_t len)
606{
607 struct iio_dev *dev_info = dev_to_iio_dev(dev);
608 struct adt7316_chip_info *chip = iio_priv(dev_info);
609 u8 config3;
610 int ret;
611
612 config3 = chip->config3 & (~ADT7316_ADCLK_22_5);
613 if (buf[0] == '1')
614 config3 |= ADT7316_ADCLK_22_5;
615
616 ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG3, config3);
617 if (ret)
618 return -EIO;
619
620 chip->config3 = config3;
621
622 return len;
623}
624
625static IIO_DEVICE_ATTR(fast_ad_clock, S_IRUGO | S_IWUSR,
626 adt7316_show_fast_ad_clock,
627 adt7316_store_fast_ad_clock,
628 0);
629
630static ssize_t adt7316_show_da_high_resolution(struct device *dev,
631 struct device_attribute *attr,
632 char *buf)
633{
634 struct iio_dev *dev_info = dev_to_iio_dev(dev);
635 struct adt7316_chip_info *chip = iio_priv(dev_info);
636
637 if (chip->config3 & ADT7316_DA_HIGH_RESOLUTION) {
638 if (chip->id == ID_ADT7316 || chip->id == ID_ADT7516)
639 return sprintf(buf, "1 (12 bits)\n");
640 else if (chip->id == ID_ADT7317 || chip->id == ID_ADT7517)
641 return sprintf(buf, "1 (10 bits)\n");
642 }
643
644 return sprintf(buf, "0 (8 bits)\n");
645}
646
647static ssize_t adt7316_store_da_high_resolution(struct device *dev,
648 struct device_attribute *attr,
649 const char *buf,
650 size_t len)
651{
652 struct iio_dev *dev_info = dev_to_iio_dev(dev);
653 struct adt7316_chip_info *chip = iio_priv(dev_info);
654 u8 config3;
655 int ret;
656
657 chip->dac_bits = 8;
658
659 if (buf[0] == '1') {
660 config3 = chip->config3 | ADT7316_DA_HIGH_RESOLUTION;
661 if (chip->id == ID_ADT7316 || chip->id == ID_ADT7516)
662 chip->dac_bits = 12;
663 else if (chip->id == ID_ADT7317 || chip->id == ID_ADT7517)
664 chip->dac_bits = 10;
665 } else
666 config3 = chip->config3 & (~ADT7316_DA_HIGH_RESOLUTION);
667
668 ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG3, config3);
669 if (ret)
670 return -EIO;
671
672 chip->config3 = config3;
673
674 return len;
675}
676
677static IIO_DEVICE_ATTR(da_high_resolution, S_IRUGO | S_IWUSR,
678 adt7316_show_da_high_resolution,
679 adt7316_store_da_high_resolution,
680 0);
681
682static ssize_t adt7316_show_AIN_internal_Vref(struct device *dev,
683 struct device_attribute *attr,
684 char *buf)
685{
686 struct iio_dev *dev_info = dev_to_iio_dev(dev);
687 struct adt7316_chip_info *chip = iio_priv(dev_info);
688
689 if ((chip->id & ID_FAMILY_MASK) != ID_ADT75XX)
690 return -EPERM;
691
692 return sprintf(buf, "%d\n",
693 !!(chip->config3 & ADT7516_AIN_IN_VREF));
694}
695
696static ssize_t adt7316_store_AIN_internal_Vref(struct device *dev,
697 struct device_attribute *attr,
698 const char *buf,
699 size_t len)
700{
701 struct iio_dev *dev_info = dev_to_iio_dev(dev);
702 struct adt7316_chip_info *chip = iio_priv(dev_info);
703 u8 config3;
704 int ret;
705
706 if ((chip->id & ID_FAMILY_MASK) != ID_ADT75XX)
707 return -EPERM;
708
709 if (buf[0] != '1')
710 config3 = chip->config3 & (~ADT7516_AIN_IN_VREF);
711 else
712 config3 = chip->config3 | ADT7516_AIN_IN_VREF;
713
714 ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG3, config3);
715 if (ret)
716 return -EIO;
717
718 chip->config3 = config3;
719
720 return len;
721}
722
723static IIO_DEVICE_ATTR(AIN_internal_Vref, S_IRUGO | S_IWUSR,
724 adt7316_show_AIN_internal_Vref,
725 adt7316_store_AIN_internal_Vref,
726 0);
727
728
729static ssize_t adt7316_show_enable_prop_DACA(struct device *dev,
730 struct device_attribute *attr,
731 char *buf)
732{
733 struct iio_dev *dev_info = dev_to_iio_dev(dev);
734 struct adt7316_chip_info *chip = iio_priv(dev_info);
735
736 return sprintf(buf, "%d\n",
737 !!(chip->config3 & ADT7316_EN_IN_TEMP_PROP_DACA));
738}
739
740static ssize_t adt7316_store_enable_prop_DACA(struct device *dev,
741 struct device_attribute *attr,
742 const char *buf,
743 size_t len)
744{
745 struct iio_dev *dev_info = dev_to_iio_dev(dev);
746 struct adt7316_chip_info *chip = iio_priv(dev_info);
747 u8 config3;
748 int ret;
749
750 config3 = chip->config3 & (~ADT7316_EN_IN_TEMP_PROP_DACA);
751 if (buf[0] == '1')
752 config3 |= ADT7316_EN_IN_TEMP_PROP_DACA;
753
754 ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG3, config3);
755 if (ret)
756 return -EIO;
757
758 chip->config3 = config3;
759
760 return len;
761}
762
763static IIO_DEVICE_ATTR(enable_proportion_DACA, S_IRUGO | S_IWUSR,
764 adt7316_show_enable_prop_DACA,
765 adt7316_store_enable_prop_DACA,
766 0);
767
768static ssize_t adt7316_show_enable_prop_DACB(struct device *dev,
769 struct device_attribute *attr,
770 char *buf)
771{
772 struct iio_dev *dev_info = dev_to_iio_dev(dev);
773 struct adt7316_chip_info *chip = iio_priv(dev_info);
774
775 return sprintf(buf, "%d\n",
776 !!(chip->config3 & ADT7316_EN_EX_TEMP_PROP_DACB));
777}
778
779static ssize_t adt7316_store_enable_prop_DACB(struct device *dev,
780 struct device_attribute *attr,
781 const char *buf,
782 size_t len)
783{
784 struct iio_dev *dev_info = dev_to_iio_dev(dev);
785 struct adt7316_chip_info *chip = iio_priv(dev_info);
786 u8 config3;
787 int ret;
788
789 config3 = chip->config3 & (~ADT7316_EN_EX_TEMP_PROP_DACB);
790 if (buf[0] == '1')
791 config3 |= ADT7316_EN_EX_TEMP_PROP_DACB;
792
793 ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG3, config3);
794 if (ret)
795 return -EIO;
796
797 chip->config3 = config3;
798
799 return len;
800}
801
802static IIO_DEVICE_ATTR(enable_proportion_DACB, S_IRUGO | S_IWUSR,
803 adt7316_show_enable_prop_DACB,
804 adt7316_store_enable_prop_DACB,
805 0);
806
807static ssize_t adt7316_show_DAC_2Vref_ch_mask(struct device *dev,
808 struct device_attribute *attr,
809 char *buf)
810{
811 struct iio_dev *dev_info = dev_to_iio_dev(dev);
812 struct adt7316_chip_info *chip = iio_priv(dev_info);
813
814 return sprintf(buf, "0x%x\n",
815 chip->dac_config & ADT7316_DA_2VREF_CH_MASK);
816}
817
818static ssize_t adt7316_store_DAC_2Vref_ch_mask(struct device *dev,
819 struct device_attribute *attr,
820 const char *buf,
821 size_t len)
822{
823 struct iio_dev *dev_info = dev_to_iio_dev(dev);
824 struct adt7316_chip_info *chip = iio_priv(dev_info);
825 u8 dac_config;
826 u8 data;
827 int ret;
828
829 ret = kstrtou8(buf, 16, &data);
830 if (ret || data > ADT7316_DA_2VREF_CH_MASK)
831 return -EINVAL;
832
833 dac_config = chip->dac_config & (~ADT7316_DA_2VREF_CH_MASK);
834 dac_config |= data;
835
836 ret = chip->bus.write(chip->bus.client, ADT7316_DAC_CONFIG, dac_config);
837 if (ret)
838 return -EIO;
839
840 chip->dac_config = dac_config;
841
842 return len;
843}
844
845static IIO_DEVICE_ATTR(DAC_2Vref_channels_mask, S_IRUGO | S_IWUSR,
846 adt7316_show_DAC_2Vref_ch_mask,
847 adt7316_store_DAC_2Vref_ch_mask,
848 0);
849
850static ssize_t adt7316_show_DAC_update_mode(struct device *dev,
851 struct device_attribute *attr,
852 char *buf)
853{
854 struct iio_dev *dev_info = dev_to_iio_dev(dev);
855 struct adt7316_chip_info *chip = iio_priv(dev_info);
856
857 if (!(chip->config3 & ADT7316_DA_EN_VIA_DAC_LDCA))
858 return sprintf(buf, "manual\n");
859 else {
860 switch (chip->dac_config & ADT7316_DA_EN_MODE_MASK) {
861 case ADT7316_DA_EN_MODE_SINGLE:
862 return sprintf(buf,
863 "0 - auto at any MSB DAC writing\n");
864 case ADT7316_DA_EN_MODE_AB_CD:
865 return sprintf(buf,
866 "1 - auto at MSB DAC AB and CD writing\n");
867 case ADT7316_DA_EN_MODE_ABCD:
868 return sprintf(buf,
869 "2 - auto at MSB DAC ABCD writing\n");
870 default:
871 return sprintf(buf, "3 - manual\n");
872 }
873 }
874}
875
876static ssize_t adt7316_store_DAC_update_mode(struct device *dev,
877 struct device_attribute *attr,
878 const char *buf,
879 size_t len)
880{
881 struct iio_dev *dev_info = dev_to_iio_dev(dev);
882 struct adt7316_chip_info *chip = iio_priv(dev_info);
883 u8 dac_config;
884 u8 data;
885 int ret;
886
887 if (!(chip->config3 & ADT7316_DA_EN_VIA_DAC_LDCA))
888 return -EPERM;
889
890 ret = kstrtou8(buf, 10, &data);
891 if (ret || data > ADT7316_DA_EN_MODE_MASK)
892 return -EINVAL;
893
894 dac_config = chip->dac_config & (~ADT7316_DA_EN_MODE_MASK);
895 dac_config |= data;
896
897 ret = chip->bus.write(chip->bus.client, ADT7316_DAC_CONFIG, dac_config);
898 if (ret)
899 return -EIO;
900
901 chip->dac_config = dac_config;
902
903 return len;
904}
905
906static IIO_DEVICE_ATTR(DAC_update_mode, S_IRUGO | S_IWUSR,
907 adt7316_show_DAC_update_mode,
908 adt7316_store_DAC_update_mode,
909 0);
910
911static ssize_t adt7316_show_all_DAC_update_modes(struct device *dev,
912 struct device_attribute *attr,
913 char *buf)
914{
915 struct iio_dev *dev_info = dev_to_iio_dev(dev);
916 struct adt7316_chip_info *chip = iio_priv(dev_info);
917
918 if (chip->config3 & ADT7316_DA_EN_VIA_DAC_LDCA)
919 return sprintf(buf, "0 - auto at any MSB DAC writing\n"
920 "1 - auto at MSB DAC AB and CD writing\n"
921 "2 - auto at MSB DAC ABCD writing\n"
922 "3 - manual\n");
923 else
924 return sprintf(buf, "manual\n");
925}
926
927static IIO_DEVICE_ATTR(all_DAC_update_modes, S_IRUGO,
928 adt7316_show_all_DAC_update_modes, NULL, 0);
929
930
931static ssize_t adt7316_store_update_DAC(struct device *dev,
932 struct device_attribute *attr,
933 const char *buf,
934 size_t len)
935{
936 struct iio_dev *dev_info = dev_to_iio_dev(dev);
937 struct adt7316_chip_info *chip = iio_priv(dev_info);
938 u8 ldac_config;
939 u8 data;
940 int ret;
941
942 if (chip->config3 & ADT7316_DA_EN_VIA_DAC_LDCA) {
943 if ((chip->dac_config & ADT7316_DA_EN_MODE_MASK) !=
944 ADT7316_DA_EN_MODE_LDAC)
945 return -EPERM;
946
947 ret = kstrtou8(buf, 16, &data);
948 if (ret || data > ADT7316_LDAC_EN_DA_MASK)
949 return -EINVAL;
950
951 ldac_config = chip->ldac_config & (~ADT7316_LDAC_EN_DA_MASK);
952 ldac_config |= data;
953
954 ret = chip->bus.write(chip->bus.client, ADT7316_LDAC_CONFIG,
955 ldac_config);
956 if (ret)
957 return -EIO;
958 } else {
959 gpio_set_value(chip->ldac_pin, 0);
960 gpio_set_value(chip->ldac_pin, 1);
961 }
962
963 return len;
964}
965
966static IIO_DEVICE_ATTR(update_DAC, S_IRUGO | S_IWUSR,
967 NULL,
968 adt7316_store_update_DAC,
969 0);
970
971static ssize_t adt7316_show_DA_AB_Vref_bypass(struct device *dev,
972 struct device_attribute *attr,
973 char *buf)
974{
975 struct iio_dev *dev_info = dev_to_iio_dev(dev);
976 struct adt7316_chip_info *chip = iio_priv(dev_info);
977
978 if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX)
979 return -EPERM;
980
981 return sprintf(buf, "%d\n",
982 !!(chip->dac_config & ADT7316_VREF_BYPASS_DAC_AB));
983}
984
985static ssize_t adt7316_store_DA_AB_Vref_bypass(struct device *dev,
986 struct device_attribute *attr,
987 const char *buf,
988 size_t len)
989{
990 struct iio_dev *dev_info = dev_to_iio_dev(dev);
991 struct adt7316_chip_info *chip = iio_priv(dev_info);
992 u8 dac_config;
993 int ret;
994
995 if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX)
996 return -EPERM;
997
998 dac_config = chip->dac_config & (~ADT7316_VREF_BYPASS_DAC_AB);
999 if (buf[0] == '1')
1000 dac_config |= ADT7316_VREF_BYPASS_DAC_AB;
1001
1002 ret = chip->bus.write(chip->bus.client, ADT7316_DAC_CONFIG, dac_config);
1003 if (ret)
1004 return -EIO;
1005
1006 chip->dac_config = dac_config;
1007
1008 return len;
1009}
1010
1011static IIO_DEVICE_ATTR(DA_AB_Vref_bypass, S_IRUGO | S_IWUSR,
1012 adt7316_show_DA_AB_Vref_bypass,
1013 adt7316_store_DA_AB_Vref_bypass,
1014 0);
1015
1016static ssize_t adt7316_show_DA_CD_Vref_bypass(struct device *dev,
1017 struct device_attribute *attr,
1018 char *buf)
1019{
1020 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1021 struct adt7316_chip_info *chip = iio_priv(dev_info);
1022
1023 if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX)
1024 return -EPERM;
1025
1026 return sprintf(buf, "%d\n",
1027 !!(chip->dac_config & ADT7316_VREF_BYPASS_DAC_CD));
1028}
1029
1030static ssize_t adt7316_store_DA_CD_Vref_bypass(struct device *dev,
1031 struct device_attribute *attr,
1032 const char *buf,
1033 size_t len)
1034{
1035 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1036 struct adt7316_chip_info *chip = iio_priv(dev_info);
1037 u8 dac_config;
1038 int ret;
1039
1040 if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX)
1041 return -EPERM;
1042
1043 dac_config = chip->dac_config & (~ADT7316_VREF_BYPASS_DAC_CD);
1044 if (buf[0] == '1')
1045 dac_config |= ADT7316_VREF_BYPASS_DAC_CD;
1046
1047 ret = chip->bus.write(chip->bus.client, ADT7316_DAC_CONFIG, dac_config);
1048 if (ret)
1049 return -EIO;
1050
1051 chip->dac_config = dac_config;
1052
1053 return len;
1054}
1055
1056static IIO_DEVICE_ATTR(DA_CD_Vref_bypass, S_IRUGO | S_IWUSR,
1057 adt7316_show_DA_CD_Vref_bypass,
1058 adt7316_store_DA_CD_Vref_bypass,
1059 0);
1060
1061static ssize_t adt7316_show_DAC_internal_Vref(struct device *dev,
1062 struct device_attribute *attr,
1063 char *buf)
1064{
1065 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1066 struct adt7316_chip_info *chip = iio_priv(dev_info);
1067
1068 if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX)
1069 return sprintf(buf, "0x%x\n",
1070 (chip->dac_config & ADT7516_DAC_IN_VREF_MASK) >>
1071 ADT7516_DAC_IN_VREF_OFFSET);
1072 else
1073 return sprintf(buf, "%d\n",
1074 !!(chip->dac_config & ADT7316_DAC_IN_VREF));
1075}
1076
1077static ssize_t adt7316_store_DAC_internal_Vref(struct device *dev,
1078 struct device_attribute *attr,
1079 const char *buf,
1080 size_t len)
1081{
1082 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1083 struct adt7316_chip_info *chip = iio_priv(dev_info);
1084 u8 ldac_config;
1085 u8 data;
1086 int ret;
1087
1088 if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX) {
1089 ret = kstrtou8(buf, 16, &data);
1090 if (ret || data > 3)
1091 return -EINVAL;
1092
1093 ldac_config = chip->ldac_config & (~ADT7516_DAC_IN_VREF_MASK);
1094 if (data & 0x1)
1095 ldac_config |= ADT7516_DAC_AB_IN_VREF;
1096 else if (data & 0x2)
1097 ldac_config |= ADT7516_DAC_CD_IN_VREF;
1098 } else {
1099 ret = kstrtou8(buf, 16, &data);
1100 if (ret)
1101 return -EINVAL;
1102
1103 ldac_config = chip->ldac_config & (~ADT7316_DAC_IN_VREF);
1104 if (data)
1105 ldac_config = chip->ldac_config | ADT7316_DAC_IN_VREF;
1106 }
1107
1108 ret = chip->bus.write(chip->bus.client, ADT7316_LDAC_CONFIG,
1109 ldac_config);
1110 if (ret)
1111 return -EIO;
1112
1113 chip->ldac_config = ldac_config;
1114
1115 return len;
1116}
1117
1118static IIO_DEVICE_ATTR(DAC_internal_Vref, S_IRUGO | S_IWUSR,
1119 adt7316_show_DAC_internal_Vref,
1120 adt7316_store_DAC_internal_Vref,
1121 0);
1122
1123static ssize_t adt7316_show_ad(struct adt7316_chip_info *chip,
1124 int channel, char *buf)
1125{
1126 u16 data;
1127 u8 msb, lsb;
1128 char sign = ' ';
1129 int ret;
1130
1131 if ((chip->config2 & ADT7316_AD_SINGLE_CH_MODE) &&
1132 channel != (chip->config2 & ADT7516_AD_SINGLE_CH_MASK))
1133 return -EPERM;
1134
1135 switch (channel) {
1136 case ADT7316_AD_SINGLE_CH_IN:
1137 ret = chip->bus.read(chip->bus.client,
1138 ADT7316_LSB_IN_TEMP_VDD, &lsb);
1139 if (ret)
1140 return -EIO;
1141
1142 ret = chip->bus.read(chip->bus.client,
1143 ADT7316_AD_MSB_DATA_BASE + channel, &msb);
1144 if (ret)
1145 return -EIO;
1146
1147 data = msb << ADT7316_T_VALUE_FLOAT_OFFSET;
1148 data |= lsb & ADT7316_LSB_IN_TEMP_MASK;
1149 break;
1150 case ADT7316_AD_SINGLE_CH_VDD:
1151 ret = chip->bus.read(chip->bus.client,
1152 ADT7316_LSB_IN_TEMP_VDD, &lsb);
1153 if (ret)
1154 return -EIO;
1155
1156 ret = chip->bus.read(chip->bus.client,
1157
1158 ADT7316_AD_MSB_DATA_BASE + channel, &msb);
1159 if (ret)
1160 return -EIO;
1161
1162 data = msb << ADT7316_T_VALUE_FLOAT_OFFSET;
1163 data |= (lsb & ADT7316_LSB_VDD_MASK) >> ADT7316_LSB_VDD_OFFSET;
1164 return sprintf(buf, "%d\n", data);
1165 default:
1166 ret = chip->bus.read(chip->bus.client,
1167 ADT7316_LSB_EX_TEMP_AIN, &lsb);
1168 if (ret)
1169 return -EIO;
1170
1171 ret = chip->bus.read(chip->bus.client,
1172 ADT7316_AD_MSB_DATA_BASE + channel, &msb);
1173 if (ret)
1174 return -EIO;
1175
1176 data = msb << ADT7316_T_VALUE_FLOAT_OFFSET;
1177 data |= lsb & (ADT7316_LSB_EX_TEMP_MASK <<
1178 (ADT7516_LSB_AIN_SHIFT * (channel -
1179 (ADT7316_MSB_EX_TEMP - ADT7316_AD_MSB_DATA_BASE))));
1180
1181 if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX)
1182 return sprintf(buf, "%d\n", data);
1183 else
1184 break;
1185 }
1186
1187 if (data & ADT7316_T_VALUE_SIGN) {
1188
1189 data = (ADT7316_T_VALUE_SIGN << 1) - data;
1190 sign = '-';
1191 }
1192
1193 return sprintf(buf, "%c%d.%.2d\n", sign,
1194 (data >> ADT7316_T_VALUE_FLOAT_OFFSET),
1195 (data & ADT7316_T_VALUE_FLOAT_MASK) * 25);
1196}
1197
1198static ssize_t adt7316_show_VDD(struct device *dev,
1199 struct device_attribute *attr,
1200 char *buf)
1201{
1202 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1203 struct adt7316_chip_info *chip = iio_priv(dev_info);
1204
1205 return adt7316_show_ad(chip, ADT7316_AD_SINGLE_CH_VDD, buf);
1206}
1207static IIO_DEVICE_ATTR(VDD, S_IRUGO, adt7316_show_VDD, NULL, 0);
1208
1209static ssize_t adt7316_show_in_temp(struct device *dev,
1210 struct device_attribute *attr,
1211 char *buf)
1212{
1213 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1214 struct adt7316_chip_info *chip = iio_priv(dev_info);
1215
1216 return adt7316_show_ad(chip, ADT7316_AD_SINGLE_CH_IN, buf);
1217}
1218
1219static IIO_DEVICE_ATTR(in_temp, S_IRUGO, adt7316_show_in_temp, NULL, 0);
1220
1221static ssize_t adt7316_show_ex_temp_AIN1(struct device *dev,
1222 struct device_attribute *attr,
1223 char *buf)
1224{
1225 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1226 struct adt7316_chip_info *chip = iio_priv(dev_info);
1227
1228 return adt7316_show_ad(chip, ADT7316_AD_SINGLE_CH_EX, buf);
1229}
1230
1231static IIO_DEVICE_ATTR(ex_temp_AIN1, S_IRUGO, adt7316_show_ex_temp_AIN1,
1232 NULL, 0);
1233static IIO_DEVICE_ATTR(ex_temp, S_IRUGO, adt7316_show_ex_temp_AIN1, NULL, 0);
1234
1235static ssize_t adt7316_show_AIN2(struct device *dev,
1236 struct device_attribute *attr,
1237 char *buf)
1238{
1239 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1240 struct adt7316_chip_info *chip = iio_priv(dev_info);
1241
1242 return adt7316_show_ad(chip, ADT7516_AD_SINGLE_CH_AIN2, buf);
1243}
1244static IIO_DEVICE_ATTR(AIN2, S_IRUGO, adt7316_show_AIN2, NULL, 0);
1245
1246static ssize_t adt7316_show_AIN3(struct device *dev,
1247 struct device_attribute *attr,
1248 char *buf)
1249{
1250 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1251 struct adt7316_chip_info *chip = iio_priv(dev_info);
1252
1253 return adt7316_show_ad(chip, ADT7516_AD_SINGLE_CH_AIN3, buf);
1254}
1255static IIO_DEVICE_ATTR(AIN3, S_IRUGO, adt7316_show_AIN3, NULL, 0);
1256
1257static ssize_t adt7316_show_AIN4(struct device *dev,
1258 struct device_attribute *attr,
1259 char *buf)
1260{
1261 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1262 struct adt7316_chip_info *chip = iio_priv(dev_info);
1263
1264 return adt7316_show_ad(chip, ADT7516_AD_SINGLE_CH_AIN4, buf);
1265}
1266static IIO_DEVICE_ATTR(AIN4, S_IRUGO, adt7316_show_AIN4, NULL, 0);
1267
1268static ssize_t adt7316_show_temp_offset(struct adt7316_chip_info *chip,
1269 int offset_addr, char *buf)
1270{
1271 int data;
1272 u8 val;
1273 int ret;
1274
1275 ret = chip->bus.read(chip->bus.client, offset_addr, &val);
1276 if (ret)
1277 return -EIO;
1278
1279 data = (int)val;
1280 if (val & 0x80)
1281 data -= 256;
1282
1283 return sprintf(buf, "%d\n", data);
1284}
1285
1286static ssize_t adt7316_store_temp_offset(struct adt7316_chip_info *chip,
1287 int offset_addr, const char *buf, size_t len)
1288{
1289 int data;
1290 u8 val;
1291 int ret;
1292
1293 ret = kstrtoint(buf, 10, &data);
1294 if (ret || data > 127 || data < -128)
1295 return -EINVAL;
1296
1297 if (data < 0)
1298 data += 256;
1299
1300 val = (u8)data;
1301
1302 ret = chip->bus.write(chip->bus.client, offset_addr, val);
1303 if (ret)
1304 return -EIO;
1305
1306 return len;
1307}
1308
1309static ssize_t adt7316_show_in_temp_offset(struct device *dev,
1310 struct device_attribute *attr,
1311 char *buf)
1312{
1313 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1314 struct adt7316_chip_info *chip = iio_priv(dev_info);
1315
1316 return adt7316_show_temp_offset(chip, ADT7316_IN_TEMP_OFFSET, buf);
1317}
1318
1319static ssize_t adt7316_store_in_temp_offset(struct device *dev,
1320 struct device_attribute *attr,
1321 const char *buf,
1322 size_t len)
1323{
1324 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1325 struct adt7316_chip_info *chip = iio_priv(dev_info);
1326
1327 return adt7316_store_temp_offset(chip, ADT7316_IN_TEMP_OFFSET, buf,
1328 len);
1329}
1330
1331static IIO_DEVICE_ATTR(in_temp_offset, S_IRUGO | S_IWUSR,
1332 adt7316_show_in_temp_offset,
1333 adt7316_store_in_temp_offset, 0);
1334
1335static ssize_t adt7316_show_ex_temp_offset(struct device *dev,
1336 struct device_attribute *attr,
1337 char *buf)
1338{
1339 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1340 struct adt7316_chip_info *chip = iio_priv(dev_info);
1341
1342 return adt7316_show_temp_offset(chip, ADT7316_EX_TEMP_OFFSET, buf);
1343}
1344
1345static ssize_t adt7316_store_ex_temp_offset(struct device *dev,
1346 struct device_attribute *attr,
1347 const char *buf,
1348 size_t len)
1349{
1350 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1351 struct adt7316_chip_info *chip = iio_priv(dev_info);
1352
1353 return adt7316_store_temp_offset(chip, ADT7316_EX_TEMP_OFFSET, buf,
1354 len);
1355}
1356
1357static IIO_DEVICE_ATTR(ex_temp_offset, S_IRUGO | S_IWUSR,
1358 adt7316_show_ex_temp_offset,
1359 adt7316_store_ex_temp_offset, 0);
1360
1361static ssize_t adt7316_show_in_analog_temp_offset(struct device *dev,
1362 struct device_attribute *attr,
1363 char *buf)
1364{
1365 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1366 struct adt7316_chip_info *chip = iio_priv(dev_info);
1367
1368 return adt7316_show_temp_offset(chip,
1369 ADT7316_IN_ANALOG_TEMP_OFFSET, buf);
1370}
1371
1372static ssize_t adt7316_store_in_analog_temp_offset(struct device *dev,
1373 struct device_attribute *attr,
1374 const char *buf,
1375 size_t len)
1376{
1377 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1378 struct adt7316_chip_info *chip = iio_priv(dev_info);
1379
1380 return adt7316_store_temp_offset(chip,
1381 ADT7316_IN_ANALOG_TEMP_OFFSET, buf, len);
1382}
1383
1384static IIO_DEVICE_ATTR(in_analog_temp_offset, S_IRUGO | S_IWUSR,
1385 adt7316_show_in_analog_temp_offset,
1386 adt7316_store_in_analog_temp_offset, 0);
1387
1388static ssize_t adt7316_show_ex_analog_temp_offset(struct device *dev,
1389 struct device_attribute *attr,
1390 char *buf)
1391{
1392 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1393 struct adt7316_chip_info *chip = iio_priv(dev_info);
1394
1395 return adt7316_show_temp_offset(chip,
1396 ADT7316_EX_ANALOG_TEMP_OFFSET, buf);
1397}
1398
1399static ssize_t adt7316_store_ex_analog_temp_offset(struct device *dev,
1400 struct device_attribute *attr,
1401 const char *buf,
1402 size_t len)
1403{
1404 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1405 struct adt7316_chip_info *chip = iio_priv(dev_info);
1406
1407 return adt7316_store_temp_offset(chip,
1408 ADT7316_EX_ANALOG_TEMP_OFFSET, buf, len);
1409}
1410
1411static IIO_DEVICE_ATTR(ex_analog_temp_offset, S_IRUGO | S_IWUSR,
1412 adt7316_show_ex_analog_temp_offset,
1413 adt7316_store_ex_analog_temp_offset, 0);
1414
1415static ssize_t adt7316_show_DAC(struct adt7316_chip_info *chip,
1416 int channel, char *buf)
1417{
1418 u16 data;
1419 u8 msb, lsb, offset;
1420 int ret;
1421
1422 if (channel >= ADT7316_DA_MSB_DATA_REGS ||
1423 (channel == 0 &&
1424 (chip->config3 & ADT7316_EN_IN_TEMP_PROP_DACA)) ||
1425 (channel == 1 &&
1426 (chip->config3 & ADT7316_EN_EX_TEMP_PROP_DACB)))
1427 return -EPERM;
1428
1429 offset = chip->dac_bits - 8;
1430
1431 if (chip->dac_bits > 8) {
1432 ret = chip->bus.read(chip->bus.client,
1433 ADT7316_DA_DATA_BASE + channel * 2, &lsb);
1434 if (ret)
1435 return -EIO;
1436 }
1437
1438 ret = chip->bus.read(chip->bus.client,
1439 ADT7316_DA_DATA_BASE + 1 + channel * 2, &msb);
1440 if (ret)
1441 return -EIO;
1442
1443 data = (msb << offset) + (lsb & ((1 << offset) - 1));
1444
1445 return sprintf(buf, "%d\n", data);
1446}
1447
1448static ssize_t adt7316_store_DAC(struct adt7316_chip_info *chip,
1449 int channel, const char *buf, size_t len)
1450{
1451 u8 msb, lsb, offset;
1452 u16 data;
1453 int ret;
1454
1455 if (channel >= ADT7316_DA_MSB_DATA_REGS ||
1456 (channel == 0 &&
1457 (chip->config3 & ADT7316_EN_IN_TEMP_PROP_DACA)) ||
1458 (channel == 1 &&
1459 (chip->config3 & ADT7316_EN_EX_TEMP_PROP_DACB)))
1460 return -EPERM;
1461
1462 offset = chip->dac_bits - 8;
1463
1464 ret = kstrtou16(buf, 10, &data);
1465 if (ret || data >= (1 << chip->dac_bits))
1466 return -EINVAL;
1467
1468 if (chip->dac_bits > 8) {
1469 lsb = data & (1 << offset);
1470 ret = chip->bus.write(chip->bus.client,
1471 ADT7316_DA_DATA_BASE + channel * 2, lsb);
1472 if (ret)
1473 return -EIO;
1474 }
1475
1476 msb = data >> offset;
1477 ret = chip->bus.write(chip->bus.client,
1478 ADT7316_DA_DATA_BASE + 1 + channel * 2, msb);
1479 if (ret)
1480 return -EIO;
1481
1482 return len;
1483}
1484
1485static ssize_t adt7316_show_DAC_A(struct device *dev,
1486 struct device_attribute *attr,
1487 char *buf)
1488{
1489 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1490 struct adt7316_chip_info *chip = iio_priv(dev_info);
1491
1492 return adt7316_show_DAC(chip, 0, buf);
1493}
1494
1495static ssize_t adt7316_store_DAC_A(struct device *dev,
1496 struct device_attribute *attr,
1497 const char *buf,
1498 size_t len)
1499{
1500 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1501 struct adt7316_chip_info *chip = iio_priv(dev_info);
1502
1503 return adt7316_store_DAC(chip, 0, buf, len);
1504}
1505
1506static IIO_DEVICE_ATTR(DAC_A, S_IRUGO | S_IWUSR, adt7316_show_DAC_A,
1507 adt7316_store_DAC_A, 0);
1508
1509static ssize_t adt7316_show_DAC_B(struct device *dev,
1510 struct device_attribute *attr,
1511 char *buf)
1512{
1513 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1514 struct adt7316_chip_info *chip = iio_priv(dev_info);
1515
1516 return adt7316_show_DAC(chip, 1, buf);
1517}
1518
1519static ssize_t adt7316_store_DAC_B(struct device *dev,
1520 struct device_attribute *attr,
1521 const char *buf,
1522 size_t len)
1523{
1524 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1525 struct adt7316_chip_info *chip = iio_priv(dev_info);
1526
1527 return adt7316_store_DAC(chip, 1, buf, len);
1528}
1529
1530static IIO_DEVICE_ATTR(DAC_B, S_IRUGO | S_IWUSR, adt7316_show_DAC_B,
1531 adt7316_store_DAC_B, 0);
1532
1533static ssize_t adt7316_show_DAC_C(struct device *dev,
1534 struct device_attribute *attr,
1535 char *buf)
1536{
1537 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1538 struct adt7316_chip_info *chip = iio_priv(dev_info);
1539
1540 return adt7316_show_DAC(chip, 2, buf);
1541}
1542
1543static ssize_t adt7316_store_DAC_C(struct device *dev,
1544 struct device_attribute *attr,
1545 const char *buf,
1546 size_t len)
1547{
1548 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1549 struct adt7316_chip_info *chip = iio_priv(dev_info);
1550
1551 return adt7316_store_DAC(chip, 2, buf, len);
1552}
1553
1554static IIO_DEVICE_ATTR(DAC_C, S_IRUGO | S_IWUSR, adt7316_show_DAC_C,
1555 adt7316_store_DAC_C, 0);
1556
1557static ssize_t adt7316_show_DAC_D(struct device *dev,
1558 struct device_attribute *attr,
1559 char *buf)
1560{
1561 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1562 struct adt7316_chip_info *chip = iio_priv(dev_info);
1563
1564 return adt7316_show_DAC(chip, 3, buf);
1565}
1566
1567static ssize_t adt7316_store_DAC_D(struct device *dev,
1568 struct device_attribute *attr,
1569 const char *buf,
1570 size_t len)
1571{
1572 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1573 struct adt7316_chip_info *chip = iio_priv(dev_info);
1574
1575 return adt7316_store_DAC(chip, 3, buf, len);
1576}
1577
1578static IIO_DEVICE_ATTR(DAC_D, S_IRUGO | S_IWUSR, adt7316_show_DAC_D,
1579 adt7316_store_DAC_D, 0);
1580
1581static ssize_t adt7316_show_device_id(struct device *dev,
1582 struct device_attribute *attr,
1583 char *buf)
1584{
1585 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1586 struct adt7316_chip_info *chip = iio_priv(dev_info);
1587 u8 id;
1588 int ret;
1589
1590 ret = chip->bus.read(chip->bus.client, ADT7316_DEVICE_ID, &id);
1591 if (ret)
1592 return -EIO;
1593
1594 return sprintf(buf, "%d\n", id);
1595}
1596
1597static IIO_DEVICE_ATTR(device_id, S_IRUGO, adt7316_show_device_id, NULL, 0);
1598
1599static ssize_t adt7316_show_manufactorer_id(struct device *dev,
1600 struct device_attribute *attr,
1601 char *buf)
1602{
1603 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1604 struct adt7316_chip_info *chip = iio_priv(dev_info);
1605 u8 id;
1606 int ret;
1607
1608 ret = chip->bus.read(chip->bus.client, ADT7316_MANUFACTURE_ID, &id);
1609 if (ret)
1610 return -EIO;
1611
1612 return sprintf(buf, "%d\n", id);
1613}
1614
1615static IIO_DEVICE_ATTR(manufactorer_id, S_IRUGO,
1616 adt7316_show_manufactorer_id, NULL, 0);
1617
1618static ssize_t adt7316_show_device_rev(struct device *dev,
1619 struct device_attribute *attr,
1620 char *buf)
1621{
1622 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1623 struct adt7316_chip_info *chip = iio_priv(dev_info);
1624 u8 rev;
1625 int ret;
1626
1627 ret = chip->bus.read(chip->bus.client, ADT7316_DEVICE_REV, &rev);
1628 if (ret)
1629 return -EIO;
1630
1631 return sprintf(buf, "%d\n", rev);
1632}
1633
1634static IIO_DEVICE_ATTR(device_rev, S_IRUGO, adt7316_show_device_rev, NULL, 0);
1635
1636static ssize_t adt7316_show_bus_type(struct device *dev,
1637 struct device_attribute *attr,
1638 char *buf)
1639{
1640 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1641 struct adt7316_chip_info *chip = iio_priv(dev_info);
1642 u8 stat;
1643 int ret;
1644
1645 ret = chip->bus.read(chip->bus.client, ADT7316_SPI_LOCK_STAT, &stat);
1646 if (ret)
1647 return -EIO;
1648
1649 if (stat)
1650 return sprintf(buf, "spi\n");
1651 else
1652 return sprintf(buf, "i2c\n");
1653}
1654
1655static IIO_DEVICE_ATTR(bus_type, S_IRUGO, adt7316_show_bus_type, NULL, 0);
1656
1657static struct attribute *adt7316_attributes[] = {
1658 &iio_dev_attr_all_modes.dev_attr.attr,
1659 &iio_dev_attr_mode.dev_attr.attr,
1660 &iio_dev_attr_enabled.dev_attr.attr,
1661 &iio_dev_attr_ad_channel.dev_attr.attr,
1662 &iio_dev_attr_all_ad_channels.dev_attr.attr,
1663 &iio_dev_attr_disable_averaging.dev_attr.attr,
1664 &iio_dev_attr_enable_smbus_timeout.dev_attr.attr,
1665 &iio_dev_attr_powerdown.dev_attr.attr,
1666 &iio_dev_attr_fast_ad_clock.dev_attr.attr,
1667 &iio_dev_attr_da_high_resolution.dev_attr.attr,
1668 &iio_dev_attr_enable_proportion_DACA.dev_attr.attr,
1669 &iio_dev_attr_enable_proportion_DACB.dev_attr.attr,
1670 &iio_dev_attr_DAC_2Vref_channels_mask.dev_attr.attr,
1671 &iio_dev_attr_DAC_update_mode.dev_attr.attr,
1672 &iio_dev_attr_all_DAC_update_modes.dev_attr.attr,
1673 &iio_dev_attr_update_DAC.dev_attr.attr,
1674 &iio_dev_attr_DA_AB_Vref_bypass.dev_attr.attr,
1675 &iio_dev_attr_DA_CD_Vref_bypass.dev_attr.attr,
1676 &iio_dev_attr_DAC_internal_Vref.dev_attr.attr,
1677 &iio_dev_attr_VDD.dev_attr.attr,
1678 &iio_dev_attr_in_temp.dev_attr.attr,
1679 &iio_dev_attr_ex_temp.dev_attr.attr,
1680 &iio_dev_attr_in_temp_offset.dev_attr.attr,
1681 &iio_dev_attr_ex_temp_offset.dev_attr.attr,
1682 &iio_dev_attr_in_analog_temp_offset.dev_attr.attr,
1683 &iio_dev_attr_ex_analog_temp_offset.dev_attr.attr,
1684 &iio_dev_attr_DAC_A.dev_attr.attr,
1685 &iio_dev_attr_DAC_B.dev_attr.attr,
1686 &iio_dev_attr_DAC_C.dev_attr.attr,
1687 &iio_dev_attr_DAC_D.dev_attr.attr,
1688 &iio_dev_attr_device_id.dev_attr.attr,
1689 &iio_dev_attr_manufactorer_id.dev_attr.attr,
1690 &iio_dev_attr_device_rev.dev_attr.attr,
1691 &iio_dev_attr_bus_type.dev_attr.attr,
1692 NULL,
1693};
1694
1695static const struct attribute_group adt7316_attribute_group = {
1696 .attrs = adt7316_attributes,
1697};
1698
1699static struct attribute *adt7516_attributes[] = {
1700 &iio_dev_attr_all_modes.dev_attr.attr,
1701 &iio_dev_attr_mode.dev_attr.attr,
1702 &iio_dev_attr_select_ex_temp.dev_attr.attr,
1703 &iio_dev_attr_enabled.dev_attr.attr,
1704 &iio_dev_attr_ad_channel.dev_attr.attr,
1705 &iio_dev_attr_all_ad_channels.dev_attr.attr,
1706 &iio_dev_attr_disable_averaging.dev_attr.attr,
1707 &iio_dev_attr_enable_smbus_timeout.dev_attr.attr,
1708 &iio_dev_attr_powerdown.dev_attr.attr,
1709 &iio_dev_attr_fast_ad_clock.dev_attr.attr,
1710 &iio_dev_attr_AIN_internal_Vref.dev_attr.attr,
1711 &iio_dev_attr_da_high_resolution.dev_attr.attr,
1712 &iio_dev_attr_enable_proportion_DACA.dev_attr.attr,
1713 &iio_dev_attr_enable_proportion_DACB.dev_attr.attr,
1714 &iio_dev_attr_DAC_2Vref_channels_mask.dev_attr.attr,
1715 &iio_dev_attr_DAC_update_mode.dev_attr.attr,
1716 &iio_dev_attr_all_DAC_update_modes.dev_attr.attr,
1717 &iio_dev_attr_update_DAC.dev_attr.attr,
1718 &iio_dev_attr_DA_AB_Vref_bypass.dev_attr.attr,
1719 &iio_dev_attr_DA_CD_Vref_bypass.dev_attr.attr,
1720 &iio_dev_attr_DAC_internal_Vref.dev_attr.attr,
1721 &iio_dev_attr_VDD.dev_attr.attr,
1722 &iio_dev_attr_in_temp.dev_attr.attr,
1723 &iio_dev_attr_ex_temp_AIN1.dev_attr.attr,
1724 &iio_dev_attr_AIN2.dev_attr.attr,
1725 &iio_dev_attr_AIN3.dev_attr.attr,
1726 &iio_dev_attr_AIN4.dev_attr.attr,
1727 &iio_dev_attr_in_temp_offset.dev_attr.attr,
1728 &iio_dev_attr_ex_temp_offset.dev_attr.attr,
1729 &iio_dev_attr_in_analog_temp_offset.dev_attr.attr,
1730 &iio_dev_attr_ex_analog_temp_offset.dev_attr.attr,
1731 &iio_dev_attr_DAC_A.dev_attr.attr,
1732 &iio_dev_attr_DAC_B.dev_attr.attr,
1733 &iio_dev_attr_DAC_C.dev_attr.attr,
1734 &iio_dev_attr_DAC_D.dev_attr.attr,
1735 &iio_dev_attr_device_id.dev_attr.attr,
1736 &iio_dev_attr_manufactorer_id.dev_attr.attr,
1737 &iio_dev_attr_device_rev.dev_attr.attr,
1738 &iio_dev_attr_bus_type.dev_attr.attr,
1739 NULL,
1740};
1741
1742static const struct attribute_group adt7516_attribute_group = {
1743 .attrs = adt7516_attributes,
1744};
1745
1746static irqreturn_t adt7316_event_handler(int irq, void *private)
1747{
1748 struct iio_dev *indio_dev = private;
1749 struct adt7316_chip_info *chip = iio_priv(indio_dev);
1750 u8 stat1, stat2;
1751 int ret;
1752 s64 time;
1753
1754 ret = chip->bus.read(chip->bus.client, ADT7316_INT_STAT1, &stat1);
1755 if (!ret) {
1756 if ((chip->id & ID_FAMILY_MASK) != ID_ADT75XX)
1757 stat1 &= 0x1F;
1758
1759 time = iio_get_time_ns();
1760 if (stat1 & (1 << 0))
1761 iio_push_event(indio_dev,
1762 IIO_UNMOD_EVENT_CODE(IIO_TEMP, 0,
1763 IIO_EV_TYPE_THRESH,
1764 IIO_EV_DIR_RISING),
1765 time);
1766 if (stat1 & (1 << 1))
1767 iio_push_event(indio_dev,
1768 IIO_UNMOD_EVENT_CODE(IIO_TEMP, 0,
1769 IIO_EV_TYPE_THRESH,
1770 IIO_EV_DIR_FALLING),
1771 time);
1772 if (stat1 & (1 << 2))
1773 iio_push_event(indio_dev,
1774 IIO_UNMOD_EVENT_CODE(IIO_TEMP, 1,
1775 IIO_EV_TYPE_THRESH,
1776 IIO_EV_DIR_RISING),
1777 time);
1778 if (stat1 & (1 << 3))
1779 iio_push_event(indio_dev,
1780 IIO_UNMOD_EVENT_CODE(IIO_TEMP, 1,
1781 IIO_EV_TYPE_THRESH,
1782 IIO_EV_DIR_FALLING),
1783 time);
1784 if (stat1 & (1 << 5))
1785 iio_push_event(indio_dev,
1786 IIO_UNMOD_EVENT_CODE(IIO_VOLTAGE, 1,
1787 IIO_EV_TYPE_THRESH,
1788 IIO_EV_DIR_EITHER),
1789 time);
1790 if (stat1 & (1 << 6))
1791 iio_push_event(indio_dev,
1792 IIO_UNMOD_EVENT_CODE(IIO_VOLTAGE, 2,
1793 IIO_EV_TYPE_THRESH,
1794 IIO_EV_DIR_EITHER),
1795 time);
1796 if (stat1 & (1 << 7))
1797 iio_push_event(indio_dev,
1798 IIO_UNMOD_EVENT_CODE(IIO_VOLTAGE, 3,
1799 IIO_EV_TYPE_THRESH,
1800 IIO_EV_DIR_EITHER),
1801 time);
1802 }
1803 ret = chip->bus.read(chip->bus.client, ADT7316_INT_STAT2, &stat2);
1804 if (!ret) {
1805 if (stat2 & ADT7316_INT_MASK2_VDD)
1806 iio_push_event(indio_dev,
1807 IIO_UNMOD_EVENT_CODE(IIO_VOLTAGE,
1808 0,
1809 IIO_EV_TYPE_THRESH,
1810 IIO_EV_DIR_RISING),
1811 iio_get_time_ns());
1812 }
1813
1814 return IRQ_HANDLED;
1815}
1816
1817
1818
1819
1820static ssize_t adt7316_show_int_mask(struct device *dev,
1821 struct device_attribute *attr,
1822 char *buf)
1823{
1824 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1825 struct adt7316_chip_info *chip = iio_priv(dev_info);
1826
1827 return sprintf(buf, "0x%x\n", chip->int_mask);
1828}
1829
1830
1831
1832
1833static ssize_t adt7316_set_int_mask(struct device *dev,
1834 struct device_attribute *attr,
1835 const char *buf,
1836 size_t len)
1837{
1838 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1839 struct adt7316_chip_info *chip = iio_priv(dev_info);
1840 u16 data;
1841 int ret;
1842 u8 mask;
1843
1844 ret = kstrtou16(buf, 16, &data);
1845 if (ret || data >= ADT7316_VDD_INT_MASK + 1)
1846 return -EINVAL;
1847
1848 if (data & ADT7316_VDD_INT_MASK)
1849 mask = 0;
1850 else
1851 mask = ADT7316_INT_MASK2_VDD;
1852
1853 ret = chip->bus.write(chip->bus.client, ADT7316_INT_MASK2, mask);
1854 if (!ret) {
1855 chip->int_mask &= ~ADT7316_VDD_INT_MASK;
1856 chip->int_mask |= data & ADT7316_VDD_INT_MASK;
1857 }
1858
1859 if (data & ADT7316_TEMP_AIN_INT_MASK) {
1860 if ((chip->id & ID_FAMILY_MASK) == ID_ADT73XX)
1861
1862 mask = (~data) & ADT7316_TEMP_INT_MASK;
1863 else
1864
1865 mask = (~data) & ADT7316_TEMP_AIN_INT_MASK;
1866 }
1867 ret = chip->bus.write(chip->bus.client, ADT7316_INT_MASK1, mask);
1868
1869 chip->int_mask = mask;
1870
1871 return len;
1872}
1873static inline ssize_t adt7316_show_ad_bound(struct device *dev,
1874 struct device_attribute *attr,
1875 char *buf)
1876{
1877 struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
1878 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1879 struct adt7316_chip_info *chip = iio_priv(dev_info);
1880 u8 val;
1881 int data;
1882 int ret;
1883
1884 if ((chip->id & ID_FAMILY_MASK) == ID_ADT73XX &&
1885 this_attr->address > ADT7316_EX_TEMP_LOW)
1886 return -EPERM;
1887
1888 ret = chip->bus.read(chip->bus.client, this_attr->address, &val);
1889 if (ret)
1890 return -EIO;
1891
1892 data = (int)val;
1893
1894 if (!((chip->id & ID_FAMILY_MASK) == ID_ADT75XX &&
1895 (chip->config1 & ADT7516_SEL_AIN1_2_EX_TEMP_MASK) == 0)) {
1896 if (data & 0x80)
1897 data -= 256;
1898 }
1899
1900 return sprintf(buf, "%d\n", data);
1901}
1902
1903static inline ssize_t adt7316_set_ad_bound(struct device *dev,
1904 struct device_attribute *attr,
1905 const char *buf,
1906 size_t len)
1907{
1908 struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
1909 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1910 struct adt7316_chip_info *chip = iio_priv(dev_info);
1911 int data;
1912 u8 val;
1913 int ret;
1914
1915 if ((chip->id & ID_FAMILY_MASK) == ID_ADT73XX &&
1916 this_attr->address > ADT7316_EX_TEMP_LOW)
1917 return -EPERM;
1918
1919 ret = kstrtoint(buf, 10, &data);
1920 if (ret)
1921 return -EINVAL;
1922
1923 if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX &&
1924 (chip->config1 & ADT7516_SEL_AIN1_2_EX_TEMP_MASK) == 0) {
1925 if (data > 255 || data < 0)
1926 return -EINVAL;
1927 } else {
1928 if (data > 127 || data < -128)
1929 return -EINVAL;
1930
1931 if (data < 0)
1932 data += 256;
1933 }
1934
1935 val = (u8)data;
1936
1937 ret = chip->bus.write(chip->bus.client, this_attr->address, val);
1938 if (ret)
1939 return -EIO;
1940
1941 return len;
1942}
1943
1944static ssize_t adt7316_show_int_enabled(struct device *dev,
1945 struct device_attribute *attr,
1946 char *buf)
1947{
1948 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1949 struct adt7316_chip_info *chip = iio_priv(dev_info);
1950
1951 return sprintf(buf, "%d\n", !!(chip->config1 & ADT7316_INT_EN));
1952}
1953
1954static ssize_t adt7316_set_int_enabled(struct device *dev,
1955 struct device_attribute *attr,
1956 const char *buf,
1957 size_t len)
1958{
1959 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1960 struct adt7316_chip_info *chip = iio_priv(dev_info);
1961 u8 config1;
1962 int ret;
1963
1964 config1 = chip->config1 & (~ADT7316_INT_EN);
1965 if (buf[0] == '1')
1966 config1 |= ADT7316_INT_EN;
1967
1968 ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG1, config1);
1969 if (ret)
1970 return -EIO;
1971
1972 chip->config1 = config1;
1973
1974 return len;
1975}
1976
1977static IIO_DEVICE_ATTR(int_mask,
1978 S_IRUGO | S_IWUSR,
1979 adt7316_show_int_mask, adt7316_set_int_mask,
1980 0);
1981static IIO_DEVICE_ATTR(in_temp_high_value,
1982 S_IRUGO | S_IWUSR,
1983 adt7316_show_ad_bound, adt7316_set_ad_bound,
1984 ADT7316_IN_TEMP_HIGH);
1985static IIO_DEVICE_ATTR(in_temp_low_value,
1986 S_IRUGO | S_IWUSR,
1987 adt7316_show_ad_bound, adt7316_set_ad_bound,
1988 ADT7316_IN_TEMP_LOW);
1989static IIO_DEVICE_ATTR(ex_temp_high_value,
1990 S_IRUGO | S_IWUSR,
1991 adt7316_show_ad_bound, adt7316_set_ad_bound,
1992 ADT7316_EX_TEMP_HIGH);
1993static IIO_DEVICE_ATTR(ex_temp_low_value,
1994 S_IRUGO | S_IWUSR,
1995 adt7316_show_ad_bound, adt7316_set_ad_bound,
1996 ADT7316_EX_TEMP_LOW);
1997
1998
1999static IIO_DEVICE_ATTR(ex_temp_ain1_high_value,
2000 S_IRUGO | S_IWUSR,
2001 adt7316_show_ad_bound, adt7316_set_ad_bound,
2002 ADT7316_EX_TEMP_HIGH);
2003static IIO_DEVICE_ATTR(ex_temp_ain1_low_value,
2004 S_IRUGO | S_IWUSR,
2005 adt7316_show_ad_bound, adt7316_set_ad_bound,
2006 ADT7316_EX_TEMP_LOW);
2007static IIO_DEVICE_ATTR(ain2_high_value,
2008 S_IRUGO | S_IWUSR,
2009 adt7316_show_ad_bound, adt7316_set_ad_bound,
2010 ADT7516_AIN2_HIGH);
2011static IIO_DEVICE_ATTR(ain2_low_value,
2012 S_IRUGO | S_IWUSR,
2013 adt7316_show_ad_bound, adt7316_set_ad_bound,
2014 ADT7516_AIN2_LOW);
2015static IIO_DEVICE_ATTR(ain3_high_value,
2016 S_IRUGO | S_IWUSR,
2017 adt7316_show_ad_bound, adt7316_set_ad_bound,
2018 ADT7516_AIN3_HIGH);
2019static IIO_DEVICE_ATTR(ain3_low_value,
2020 S_IRUGO | S_IWUSR,
2021 adt7316_show_ad_bound, adt7316_set_ad_bound,
2022 ADT7516_AIN3_LOW);
2023static IIO_DEVICE_ATTR(ain4_high_value,
2024 S_IRUGO | S_IWUSR,
2025 adt7316_show_ad_bound, adt7316_set_ad_bound,
2026 ADT7516_AIN4_HIGH);
2027static IIO_DEVICE_ATTR(ain4_low_value,
2028 S_IRUGO | S_IWUSR,
2029 adt7316_show_ad_bound, adt7316_set_ad_bound,
2030 ADT7516_AIN4_LOW);
2031static IIO_DEVICE_ATTR(int_enabled,
2032 S_IRUGO | S_IWUSR,
2033 adt7316_show_int_enabled,
2034 adt7316_set_int_enabled, 0);
2035
2036static struct attribute *adt7316_event_attributes[] = {
2037 &iio_dev_attr_int_mask.dev_attr.attr,
2038 &iio_dev_attr_in_temp_high_value.dev_attr.attr,
2039 &iio_dev_attr_in_temp_low_value.dev_attr.attr,
2040 &iio_dev_attr_ex_temp_high_value.dev_attr.attr,
2041 &iio_dev_attr_ex_temp_low_value.dev_attr.attr,
2042 &iio_dev_attr_int_enabled.dev_attr.attr,
2043 NULL,
2044};
2045
2046static struct attribute_group adt7316_event_attribute_group = {
2047 .attrs = adt7316_event_attributes,
2048 .name = "events",
2049};
2050
2051static struct attribute *adt7516_event_attributes[] = {
2052 &iio_dev_attr_int_mask.dev_attr.attr,
2053 &iio_dev_attr_in_temp_high_value.dev_attr.attr,
2054 &iio_dev_attr_in_temp_low_value.dev_attr.attr,
2055 &iio_dev_attr_ex_temp_ain1_high_value.dev_attr.attr,
2056 &iio_dev_attr_ex_temp_ain1_low_value.dev_attr.attr,
2057 &iio_dev_attr_ain2_high_value.dev_attr.attr,
2058 &iio_dev_attr_ain2_low_value.dev_attr.attr,
2059 &iio_dev_attr_ain3_high_value.dev_attr.attr,
2060 &iio_dev_attr_ain3_low_value.dev_attr.attr,
2061 &iio_dev_attr_ain4_high_value.dev_attr.attr,
2062 &iio_dev_attr_ain4_low_value.dev_attr.attr,
2063 &iio_dev_attr_int_enabled.dev_attr.attr,
2064 NULL,
2065};
2066
2067static struct attribute_group adt7516_event_attribute_group = {
2068 .attrs = adt7516_event_attributes,
2069 .name = "events",
2070};
2071
2072#ifdef CONFIG_PM_SLEEP
2073static int adt7316_disable(struct device *dev)
2074{
2075 struct iio_dev *dev_info = dev_get_drvdata(dev);
2076 struct adt7316_chip_info *chip = iio_priv(dev_info);
2077
2078 return _adt7316_store_enabled(chip, 0);
2079}
2080
2081static int adt7316_enable(struct device *dev)
2082{
2083 struct iio_dev *dev_info = dev_get_drvdata(dev);
2084 struct adt7316_chip_info *chip = iio_priv(dev_info);
2085
2086 return _adt7316_store_enabled(chip, 1);
2087}
2088
2089SIMPLE_DEV_PM_OPS(adt7316_pm_ops, adt7316_disable, adt7316_enable);
2090EXPORT_SYMBOL_GPL(adt7316_pm_ops);
2091#endif
2092
2093static const struct iio_info adt7316_info = {
2094 .attrs = &adt7316_attribute_group,
2095 .event_attrs = &adt7316_event_attribute_group,
2096 .driver_module = THIS_MODULE,
2097};
2098
2099static const struct iio_info adt7516_info = {
2100 .attrs = &adt7516_attribute_group,
2101 .event_attrs = &adt7516_event_attribute_group,
2102 .driver_module = THIS_MODULE,
2103};
2104
2105
2106
2107
2108int adt7316_probe(struct device *dev, struct adt7316_bus *bus,
2109 const char *name)
2110{
2111 struct adt7316_chip_info *chip;
2112 struct iio_dev *indio_dev;
2113 unsigned short *adt7316_platform_data = dev->platform_data;
2114 int ret = 0;
2115
2116 indio_dev = devm_iio_device_alloc(dev, sizeof(*chip));
2117 if (!indio_dev)
2118 return -ENOMEM;
2119 chip = iio_priv(indio_dev);
2120
2121 dev_set_drvdata(dev, indio_dev);
2122
2123 chip->bus = *bus;
2124
2125 if (name[4] == '3')
2126 chip->id = ID_ADT7316 + (name[6] - '6');
2127 else if (name[4] == '5')
2128 chip->id = ID_ADT7516 + (name[6] - '6');
2129 else
2130 return -ENODEV;
2131
2132 chip->ldac_pin = adt7316_platform_data[1];
2133 if (chip->ldac_pin) {
2134 chip->config3 |= ADT7316_DA_EN_VIA_DAC_LDCA;
2135 if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX)
2136 chip->config1 |= ADT7516_SEL_AIN3;
2137 }
2138 chip->int_mask = ADT7316_TEMP_INT_MASK | ADT7316_VDD_INT_MASK;
2139 if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX)
2140 chip->int_mask |= ADT7516_AIN_INT_MASK;
2141
2142 indio_dev->dev.parent = dev;
2143 if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX)
2144 indio_dev->info = &adt7516_info;
2145 else
2146 indio_dev->info = &adt7316_info;
2147 indio_dev->name = name;
2148 indio_dev->modes = INDIO_DIRECT_MODE;
2149
2150 if (chip->bus.irq > 0) {
2151 if (adt7316_platform_data[0])
2152 chip->bus.irq_flags = adt7316_platform_data[0];
2153
2154 ret = devm_request_threaded_irq(dev, chip->bus.irq,
2155 NULL,
2156 &adt7316_event_handler,
2157 chip->bus.irq_flags |
2158 IRQF_ONESHOT,
2159 indio_dev->name,
2160 indio_dev);
2161 if (ret)
2162 return ret;
2163
2164 if (chip->bus.irq_flags & IRQF_TRIGGER_HIGH)
2165 chip->config1 |= ADT7316_INT_POLARITY;
2166 }
2167
2168 ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG1, chip->config1);
2169 if (ret)
2170 return -EIO;
2171
2172 ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG3, chip->config3);
2173 if (ret)
2174 return -EIO;
2175
2176 ret = devm_iio_device_register(dev, indio_dev);
2177 if (ret)
2178 return ret;
2179
2180 dev_info(dev, "%s temperature sensor, ADC and DAC registered.\n",
2181 indio_dev->name);
2182
2183 return 0;
2184}
2185EXPORT_SYMBOL(adt7316_probe);
2186
2187MODULE_AUTHOR("Sonic Zhang <sonic.zhang@analog.com>");
2188MODULE_DESCRIPTION("Analog Devices ADT7316/7/8 and ADT7516/7/9 digital"
2189 " temperature sensor, ADC and DAC driver");
2190MODULE_LICENSE("GPL v2");
2191
