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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
21#include "../iio.h"
22#include "../sysfs.h"
23#include "adt7316.h"
24
25
26
27
28#define ADT7316_INT_STAT1 0x0
29#define ADT7316_INT_STAT2 0x1
30#define ADT7316_LSB_IN_TEMP_VDD 0x3
31#define ADT7316_LSB_IN_TEMP_MASK 0x3
32#define ADT7316_LSB_VDD_MASK 0xC
33#define ADT7316_LSB_VDD_OFFSET 2
34#define ADT7316_LSB_EX_TEMP_AIN 0x4
35#define ADT7316_LSB_EX_TEMP_MASK 0x3
36#define ADT7516_LSB_AIN_SHIFT 2
37#define ADT7316_AD_MSB_DATA_BASE 0x6
38#define ADT7316_AD_MSB_DATA_REGS 3
39#define ADT7516_AD_MSB_DATA_REGS 6
40#define ADT7316_MSB_VDD 0x6
41#define ADT7316_MSB_IN_TEMP 0x7
42#define ADT7316_MSB_EX_TEMP 0x8
43#define ADT7516_MSB_AIN1 0x8
44#define ADT7516_MSB_AIN2 0x9
45#define ADT7516_MSB_AIN3 0xA
46#define ADT7516_MSB_AIN4 0xB
47#define ADT7316_DA_DATA_BASE 0x10
48#define ADT7316_DA_MSB_DATA_REGS 4
49#define ADT7316_LSB_DAC_A 0x10
50#define ADT7316_MSB_DAC_A 0x11
51#define ADT7316_LSB_DAC_B 0x12
52#define ADT7316_MSB_DAC_B 0x13
53#define ADT7316_LSB_DAC_C 0x14
54#define ADT7316_MSB_DAC_C 0x15
55#define ADT7316_LSB_DAC_D 0x16
56#define ADT7316_MSB_DAC_D 0x17
57#define ADT7316_CONFIG1 0x18
58#define ADT7316_CONFIG2 0x19
59#define ADT7316_CONFIG3 0x1A
60#define ADT7316_LDAC_CONFIG 0x1B
61#define ADT7316_DAC_CONFIG 0x1C
62#define ADT7316_INT_MASK1 0x1D
63#define ADT7316_INT_MASK2 0x1E
64#define ADT7316_IN_TEMP_OFFSET 0x1F
65#define ADT7316_EX_TEMP_OFFSET 0x20
66#define ADT7316_IN_ANALOG_TEMP_OFFSET 0x21
67#define ADT7316_EX_ANALOG_TEMP_OFFSET 0x22
68#define ADT7316_VDD_HIGH 0x23
69#define ADT7316_VDD_LOW 0x24
70#define ADT7316_IN_TEMP_HIGH 0x25
71#define ADT7316_IN_TEMP_LOW 0x26
72#define ADT7316_EX_TEMP_HIGH 0x27
73#define ADT7316_EX_TEMP_LOW 0x28
74#define ADT7516_AIN2_HIGH 0x2B
75#define ADT7516_AIN2_LOW 0x2C
76#define ADT7516_AIN3_HIGH 0x2D
77#define ADT7516_AIN3_LOW 0x2E
78#define ADT7516_AIN4_HIGH 0x2F
79#define ADT7516_AIN4_LOW 0x30
80#define ADT7316_DEVICE_ID 0x4D
81#define ADT7316_MANUFACTURE_ID 0x4E
82#define ADT7316_DEVICE_REV 0x4F
83#define ADT7316_SPI_LOCK_STAT 0x7F
84
85
86
87
88#define ADT7316_EN 0x1
89#define ADT7516_SEL_EX_TEMP 0x4
90#define ADT7516_SEL_AIN1_2_EX_TEMP_MASK 0x6
91#define ADT7516_SEL_AIN3 0x8
92#define ADT7316_INT_EN 0x20
93#define ADT7316_INT_POLARITY 0x40
94#define ADT7316_PD 0x80
95
96
97
98
99#define ADT7316_AD_SINGLE_CH_MASK 0x3
100#define ADT7516_AD_SINGLE_CH_MASK 0x7
101#define ADT7316_AD_SINGLE_CH_VDD 0
102#define ADT7316_AD_SINGLE_CH_IN 1
103#define ADT7316_AD_SINGLE_CH_EX 2
104#define ADT7516_AD_SINGLE_CH_AIN1 2
105#define ADT7516_AD_SINGLE_CH_AIN2 3
106#define ADT7516_AD_SINGLE_CH_AIN3 4
107#define ADT7516_AD_SINGLE_CH_AIN4 5
108#define ADT7316_AD_SINGLE_CH_MODE 0x10
109#define ADT7316_DISABLE_AVERAGING 0x20
110#define ADT7316_EN_SMBUS_TIMEOUT 0x40
111#define ADT7316_RESET 0x80
112
113
114
115
116#define ADT7316_ADCLK_22_5 0x1
117#define ADT7316_DA_HIGH_RESOLUTION 0x2
118#define ADT7316_DA_EN_VIA_DAC_LDCA 0x4
119#define ADT7516_AIN_IN_VREF 0x10
120#define ADT7316_EN_IN_TEMP_PROP_DACA 0x20
121#define ADT7316_EN_EX_TEMP_PROP_DACB 0x40
122
123
124
125
126#define ADT7316_DA_2VREF_CH_MASK 0xF
127#define ADT7316_DA_EN_MODE_MASK 0x30
128#define ADT7316_DA_EN_MODE_SINGLE 0x00
129#define ADT7316_DA_EN_MODE_AB_CD 0x10
130#define ADT7316_DA_EN_MODE_ABCD 0x20
131#define ADT7316_DA_EN_MODE_LDAC 0x30
132#define ADT7316_VREF_BYPASS_DAC_AB 0x40
133#define ADT7316_VREF_BYPASS_DAC_CD 0x80
134
135
136
137
138#define ADT7316_LDAC_EN_DA_MASK 0xF
139#define ADT7316_DAC_IN_VREF 0x10
140#define ADT7516_DAC_AB_IN_VREF 0x10
141#define ADT7516_DAC_CD_IN_VREF 0x20
142#define ADT7516_DAC_IN_VREF_OFFSET 4
143#define ADT7516_DAC_IN_VREF_MASK 0x30
144
145
146
147
148#define ADT7316_INT_MASK2_VDD 0x10
149
150
151
152
153#define ADT7316_VALUE_MASK 0xfff
154#define ADT7316_T_VALUE_SIGN 0x400
155#define ADT7316_T_VALUE_FLOAT_OFFSET 2
156#define ADT7316_T_VALUE_FLOAT_MASK 0x2
157
158
159
160
161#define ID_ADT7316 0x1
162#define ID_ADT7317 0x2
163#define ID_ADT7318 0x3
164#define ID_ADT7516 0x11
165#define ID_ADT7517 0x12
166#define ID_ADT7519 0x14
167
168#define ID_FAMILY_MASK 0xF0
169#define ID_ADT73XX 0x0
170#define ID_ADT75XX 0x10
171
172
173
174
175
176struct adt7316_chip_info {
177 const char *name;
178 struct iio_dev *indio_dev;
179 struct work_struct thresh_work;
180 s64 last_timestamp;
181 struct adt7316_bus bus;
182 u16 ldac_pin;
183 u16 int_mask;
184 u8 config1;
185 u8 config2;
186 u8 config3;
187 u8 dac_config;
188 u8 ldac_config;
189 u8 dac_bits;
190 u8 id;
191};
192
193
194
195
196
197#define ADT7316_IN_TEMP_HIGH_INT_MASK 0x1
198#define ADT7316_IN_TEMP_LOW_INT_MASK 0x2
199#define ADT7316_EX_TEMP_HIGH_INT_MASK 0x4
200#define ADT7316_EX_TEMP_LOW_INT_MASK 0x8
201#define ADT7316_EX_TEMP_FAULT_INT_MASK 0x10
202#define ADT7516_AIN1_INT_MASK 0x4
203#define ADT7516_AIN2_INT_MASK 0x20
204#define ADT7516_AIN3_INT_MASK 0x40
205#define ADT7516_AIN4_INT_MASK 0x80
206#define ADT7316_VDD_INT_MASK 0x100
207#define ADT7316_TEMP_INT_MASK 0x1F
208#define ADT7516_AIN_INT_MASK 0xE0
209#define ADT7316_TEMP_AIN_INT_MASK \
210 (ADT7316_TEMP_INT_MASK | ADT7316_TEMP_INT_MASK)
211
212
213
214
215
216struct adt7316_limit_regs {
217 u16 data_high;
218 u16 data_low;
219};
220
221static ssize_t adt7316_show_enabled(struct device *dev,
222 struct device_attribute *attr,
223 char *buf)
224{
225 struct iio_dev *dev_info = dev_get_drvdata(dev);
226 struct adt7316_chip_info *chip = dev_info->dev_data;
227
228 return sprintf(buf, "%d\n", !!(chip->config1 & ADT7316_EN));
229}
230
231static ssize_t _adt7316_store_enabled(struct adt7316_chip_info *chip,
232 int enable)
233{
234 u8 config1;
235 int ret;
236
237 if (enable)
238 config1 = chip->config1 | ADT7316_EN;
239 else
240 config1 = chip->config1 & ~ADT7316_EN;
241
242 ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG1, config1);
243 if (ret)
244 return -EIO;
245
246 chip->config1 = config1;
247
248 return ret;
249
250}
251
252static ssize_t adt7316_store_enabled(struct device *dev,
253 struct device_attribute *attr,
254 const char *buf,
255 size_t len)
256{
257 struct iio_dev *dev_info = dev_get_drvdata(dev);
258 struct adt7316_chip_info *chip = dev_info->dev_data;
259 int enable;
260
261 if (!memcmp(buf, "1", 1))
262 enable = 1;
263 else
264 enable = 0;
265
266 if (_adt7316_store_enabled(chip, enable) < 0)
267 return -EIO;
268 else
269 return len;
270}
271
272static IIO_DEVICE_ATTR(enabled, S_IRUGO | S_IWUSR,
273 adt7316_show_enabled,
274 adt7316_store_enabled,
275 0);
276
277static ssize_t adt7316_show_select_ex_temp(struct device *dev,
278 struct device_attribute *attr,
279 char *buf)
280{
281 struct iio_dev *dev_info = dev_get_drvdata(dev);
282 struct adt7316_chip_info *chip = dev_info->dev_data;
283
284 if ((chip->id & ID_FAMILY_MASK) != ID_ADT75XX)
285 return -EPERM;
286
287 return sprintf(buf, "%d\n", !!(chip->config1 & ADT7516_SEL_EX_TEMP));
288}
289
290static ssize_t adt7316_store_select_ex_temp(struct device *dev,
291 struct device_attribute *attr,
292 const char *buf,
293 size_t len)
294{
295 struct iio_dev *dev_info = dev_get_drvdata(dev);
296 struct adt7316_chip_info *chip = dev_info->dev_data;
297 u8 config1;
298 int ret;
299
300 if ((chip->id & ID_FAMILY_MASK) != ID_ADT75XX)
301 return -EPERM;
302
303 config1 = chip->config1 & (~ADT7516_SEL_EX_TEMP);
304 if (!memcmp(buf, "1", 1))
305 config1 |= ADT7516_SEL_EX_TEMP;
306
307 ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG1, config1);
308 if (ret)
309 return -EIO;
310
311 chip->config1 = config1;
312
313 return len;
314}
315
316static IIO_DEVICE_ATTR(select_ex_temp, S_IRUGO | S_IWUSR,
317 adt7316_show_select_ex_temp,
318 adt7316_store_select_ex_temp,
319 0);
320
321static ssize_t adt7316_show_mode(struct device *dev,
322 struct device_attribute *attr,
323 char *buf)
324{
325 struct iio_dev *dev_info = dev_get_drvdata(dev);
326 struct adt7316_chip_info *chip = dev_info->dev_data;
327
328 if (chip->config2 & ADT7316_AD_SINGLE_CH_MODE)
329 return sprintf(buf, "single_channel\n");
330 else
331 return sprintf(buf, "round_robin\n");
332}
333
334static ssize_t adt7316_store_mode(struct device *dev,
335 struct device_attribute *attr,
336 const char *buf,
337 size_t len)
338{
339 struct iio_dev *dev_info = dev_get_drvdata(dev);
340 struct adt7316_chip_info *chip = dev_info->dev_data;
341 u8 config2;
342 int ret;
343
344 config2 = chip->config2 & (~ADT7316_AD_SINGLE_CH_MODE);
345 if (!memcmp(buf, "single_channel", 14))
346 config2 |= ADT7316_AD_SINGLE_CH_MODE;
347
348 ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG2, config2);
349 if (ret)
350 return -EIO;
351
352 chip->config2 = config2;
353
354 return len;
355}
356
357static IIO_DEVICE_ATTR(mode, S_IRUGO | S_IWUSR,
358 adt7316_show_mode,
359 adt7316_store_mode,
360 0);
361
362static ssize_t adt7316_show_all_modes(struct device *dev,
363 struct device_attribute *attr,
364 char *buf)
365{
366 return sprintf(buf, "single_channel\nround_robin\n");
367}
368
369static IIO_DEVICE_ATTR(all_modes, S_IRUGO, adt7316_show_all_modes, NULL, 0);
370
371static ssize_t adt7316_show_ad_channel(struct device *dev,
372 struct device_attribute *attr,
373 char *buf)
374{
375 struct iio_dev *dev_info = dev_get_drvdata(dev);
376 struct adt7316_chip_info *chip = dev_info->dev_data;
377
378 if (!(chip->config2 & ADT7316_AD_SINGLE_CH_MODE))
379 return -EPERM;
380
381 switch (chip->config2 & ADT7516_AD_SINGLE_CH_MASK) {
382 case ADT7316_AD_SINGLE_CH_VDD:
383 return sprintf(buf, "0 - VDD\n");
384 case ADT7316_AD_SINGLE_CH_IN:
385 return sprintf(buf, "1 - Internal Temperature\n");
386 case ADT7316_AD_SINGLE_CH_EX:
387 if (((chip->id & ID_FAMILY_MASK) == ID_ADT75XX) &&
388 (chip->config1 & ADT7516_SEL_AIN1_2_EX_TEMP_MASK) == 0)
389 return sprintf(buf, "2 - AIN1\n");
390 else
391 return sprintf(buf, "2 - External Temperature\n");
392 case ADT7516_AD_SINGLE_CH_AIN2:
393 if ((chip->config1 & ADT7516_SEL_AIN1_2_EX_TEMP_MASK) == 0)
394 return sprintf(buf, "3 - AIN2\n");
395 else
396 return sprintf(buf, "N/A\n");
397 case ADT7516_AD_SINGLE_CH_AIN3:
398 if (chip->config1 & ADT7516_SEL_AIN3)
399 return sprintf(buf, "4 - AIN3\n");
400 else
401 return sprintf(buf, "N/A\n");
402 case ADT7516_AD_SINGLE_CH_AIN4:
403 return sprintf(buf, "5 - AIN4\n");
404 default:
405 return sprintf(buf, "N/A\n");
406 };
407}
408
409static ssize_t adt7316_store_ad_channel(struct device *dev,
410 struct device_attribute *attr,
411 const char *buf,
412 size_t len)
413{
414 struct iio_dev *dev_info = dev_get_drvdata(dev);
415 struct adt7316_chip_info *chip = dev_info->dev_data;
416 u8 config2;
417 unsigned long data = 0;
418 int ret;
419
420 if (!(chip->config2 & ADT7316_AD_SINGLE_CH_MODE))
421 return -EPERM;
422
423 ret = strict_strtoul(buf, 10, &data);
424 if (ret)
425 return -EINVAL;
426
427 if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX) {
428 if (data > 5)
429 return -EINVAL;
430
431 config2 = chip->config2 & (~ADT7516_AD_SINGLE_CH_MASK);
432 } else {
433 if (data > 2)
434 return -EINVAL;
435
436 config2 = chip->config2 & (~ADT7316_AD_SINGLE_CH_MASK);
437 }
438
439
440 config2 |= data;
441
442 ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG2, config2);
443 if (ret)
444 return -EIO;
445
446 chip->config2 = config2;
447
448 return len;
449}
450
451static IIO_DEVICE_ATTR(ad_channel, S_IRUGO | S_IWUSR,
452 adt7316_show_ad_channel,
453 adt7316_store_ad_channel,
454 0);
455
456static ssize_t adt7316_show_all_ad_channels(struct device *dev,
457 struct device_attribute *attr,
458 char *buf)
459{
460 struct iio_dev *dev_info = dev_get_drvdata(dev);
461 struct adt7316_chip_info *chip = dev_info->dev_data;
462
463 if (!(chip->config2 & ADT7316_AD_SINGLE_CH_MODE))
464 return -EPERM;
465
466 if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX)
467 return sprintf(buf, "0 - VDD\n1 - Internal Temperature\n"
468 "2 - External Temperature or AIN2\n"
469 "3 - AIN2\n4 - AIN3\n5 - AIN4\n");
470 else
471 return sprintf(buf, "0 - VDD\n1 - Internal Temperature\n"
472 "2 - External Temperature\n");
473}
474
475static IIO_DEVICE_ATTR(all_ad_channels, S_IRUGO,
476 adt7316_show_all_ad_channels, NULL, 0);
477
478static ssize_t adt7316_show_disable_averaging(struct device *dev,
479 struct device_attribute *attr,
480 char *buf)
481{
482 struct iio_dev *dev_info = dev_get_drvdata(dev);
483 struct adt7316_chip_info *chip = dev_info->dev_data;
484
485 return sprintf(buf, "%d\n",
486 !!(chip->config2 & ADT7316_DISABLE_AVERAGING));
487}
488
489static ssize_t adt7316_store_disable_averaging(struct device *dev,
490 struct device_attribute *attr,
491 const char *buf,
492 size_t len)
493{
494 struct iio_dev *dev_info = dev_get_drvdata(dev);
495 struct adt7316_chip_info *chip = dev_info->dev_data;
496 u8 config2;
497 int ret;
498
499 config2 = chip->config2 & (~ADT7316_DISABLE_AVERAGING);
500 if (!memcmp(buf, "1", 1))
501 config2 |= ADT7316_DISABLE_AVERAGING;
502
503 ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG2, config2);
504 if (ret)
505 return -EIO;
506
507 chip->config2 = config2;
508
509 return len;
510}
511
512static IIO_DEVICE_ATTR(disable_averaging, S_IRUGO | S_IWUSR,
513 adt7316_show_disable_averaging,
514 adt7316_store_disable_averaging,
515 0);
516
517static ssize_t adt7316_show_enable_smbus_timeout(struct device *dev,
518 struct device_attribute *attr,
519 char *buf)
520{
521 struct iio_dev *dev_info = dev_get_drvdata(dev);
522 struct adt7316_chip_info *chip = dev_info->dev_data;
523
524 return sprintf(buf, "%d\n",
525 !!(chip->config2 & ADT7316_EN_SMBUS_TIMEOUT));
526}
527
528static ssize_t adt7316_store_enable_smbus_timeout(struct device *dev,
529 struct device_attribute *attr,
530 const char *buf,
531 size_t len)
532{
533 struct iio_dev *dev_info = dev_get_drvdata(dev);
534 struct adt7316_chip_info *chip = dev_info->dev_data;
535 u8 config2;
536 int ret;
537
538 config2 = chip->config2 & (~ADT7316_EN_SMBUS_TIMEOUT);
539 if (!memcmp(buf, "1", 1))
540 config2 |= ADT7316_EN_SMBUS_TIMEOUT;
541
542 ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG2, config2);
543 if (ret)
544 return -EIO;
545
546 chip->config2 = config2;
547
548 return len;
549}
550
551static IIO_DEVICE_ATTR(enable_smbus_timeout, S_IRUGO | S_IWUSR,
552 adt7316_show_enable_smbus_timeout,
553 adt7316_store_enable_smbus_timeout,
554 0);
555
556
557static ssize_t adt7316_store_reset(struct device *dev,
558 struct device_attribute *attr,
559 const char *buf,
560 size_t len)
561{
562 struct iio_dev *dev_info = dev_get_drvdata(dev);
563 struct adt7316_chip_info *chip = dev_info->dev_data;
564 u8 config2;
565 int ret;
566
567 config2 = chip->config2 | ADT7316_RESET;
568
569 ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG2, config2);
570 if (ret)
571 return -EIO;
572
573 return len;
574}
575
576static IIO_DEVICE_ATTR(reset, S_IWUSR,
577 NULL,
578 adt7316_store_reset,
579 0);
580
581static ssize_t adt7316_show_powerdown(struct device *dev,
582 struct device_attribute *attr,
583 char *buf)
584{
585 struct iio_dev *dev_info = dev_get_drvdata(dev);
586 struct adt7316_chip_info *chip = dev_info->dev_data;
587
588 return sprintf(buf, "%d\n", !!(chip->config1 & ADT7316_PD));
589}
590
591static ssize_t adt7316_store_powerdown(struct device *dev,
592 struct device_attribute *attr,
593 const char *buf,
594 size_t len)
595{
596 struct iio_dev *dev_info = dev_get_drvdata(dev);
597 struct adt7316_chip_info *chip = dev_info->dev_data;
598 u8 config1;
599 int ret;
600
601 config1 = chip->config1 & (~ADT7316_PD);
602 if (!memcmp(buf, "1", 1))
603 config1 |= ADT7316_PD;
604
605 ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG1, config1);
606 if (ret)
607 return -EIO;
608
609 chip->config1 = config1;
610
611 return len;
612}
613
614static IIO_DEVICE_ATTR(powerdown, S_IRUGO | S_IWUSR,
615 adt7316_show_powerdown,
616 adt7316_store_powerdown,
617 0);
618
619static ssize_t adt7316_show_fast_ad_clock(struct device *dev,
620 struct device_attribute *attr,
621 char *buf)
622{
623 struct iio_dev *dev_info = dev_get_drvdata(dev);
624 struct adt7316_chip_info *chip = dev_info->dev_data;
625
626 return sprintf(buf, "%d\n", !!(chip->config3 & ADT7316_ADCLK_22_5));
627}
628
629static ssize_t adt7316_store_fast_ad_clock(struct device *dev,
630 struct device_attribute *attr,
631 const char *buf,
632 size_t len)
633{
634 struct iio_dev *dev_info = dev_get_drvdata(dev);
635 struct adt7316_chip_info *chip = dev_info->dev_data;
636 u8 config3;
637 int ret;
638
639 config3 = chip->config3 & (~ADT7316_ADCLK_22_5);
640 if (!memcmp(buf, "1", 1))
641 config3 |= ADT7316_ADCLK_22_5;
642
643 ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG3, config3);
644 if (ret)
645 return -EIO;
646
647 chip->config3 = config3;
648
649 return len;
650}
651
652static IIO_DEVICE_ATTR(fast_ad_clock, S_IRUGO | S_IWUSR,
653 adt7316_show_fast_ad_clock,
654 adt7316_store_fast_ad_clock,
655 0);
656
657static ssize_t adt7316_show_da_high_resolution(struct device *dev,
658 struct device_attribute *attr,
659 char *buf)
660{
661 struct iio_dev *dev_info = dev_get_drvdata(dev);
662 struct adt7316_chip_info *chip = dev_info->dev_data;
663
664 if (chip->config3 & ADT7316_DA_HIGH_RESOLUTION) {
665 if (chip->id == ID_ADT7316 || chip->id == ID_ADT7516)
666 return sprintf(buf, "1 (12 bits)\n");
667 else if (chip->id == ID_ADT7317 || chip->id == ID_ADT7517)
668 return sprintf(buf, "1 (10 bits)\n");
669 }
670
671 return sprintf(buf, "0 (8 bits)\n");
672}
673
674static ssize_t adt7316_store_da_high_resolution(struct device *dev,
675 struct device_attribute *attr,
676 const char *buf,
677 size_t len)
678{
679 struct iio_dev *dev_info = dev_get_drvdata(dev);
680 struct adt7316_chip_info *chip = dev_info->dev_data;
681 u8 config3;
682 int ret;
683
684 chip->dac_bits = 8;
685
686 if (!memcmp(buf, "1", 1)) {
687 config3 = chip->config3 | ADT7316_DA_HIGH_RESOLUTION;
688 if (chip->id == ID_ADT7316 || chip->id == ID_ADT7516)
689 chip->dac_bits = 12;
690 else if (chip->id == ID_ADT7317 || chip->id == ID_ADT7517)
691 chip->dac_bits = 10;
692 } else
693 config3 = chip->config3 & (~ADT7316_DA_HIGH_RESOLUTION);
694
695 ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG3, config3);
696 if (ret)
697 return -EIO;
698
699 chip->config3 = config3;
700
701 return len;
702}
703
704static IIO_DEVICE_ATTR(da_high_resolution, S_IRUGO | S_IWUSR,
705 adt7316_show_da_high_resolution,
706 adt7316_store_da_high_resolution,
707 0);
708
709static ssize_t adt7316_show_AIN_internal_Vref(struct device *dev,
710 struct device_attribute *attr,
711 char *buf)
712{
713 struct iio_dev *dev_info = dev_get_drvdata(dev);
714 struct adt7316_chip_info *chip = dev_info->dev_data;
715
716 if ((chip->id & ID_FAMILY_MASK) != ID_ADT75XX)
717 return -EPERM;
718
719 return sprintf(buf, "%d\n",
720 !!(chip->config3 & ADT7516_AIN_IN_VREF));
721}
722
723static ssize_t adt7316_store_AIN_internal_Vref(struct device *dev,
724 struct device_attribute *attr,
725 const char *buf,
726 size_t len)
727{
728 struct iio_dev *dev_info = dev_get_drvdata(dev);
729 struct adt7316_chip_info *chip = dev_info->dev_data;
730 u8 config3;
731 int ret;
732
733 if ((chip->id & ID_FAMILY_MASK) != ID_ADT75XX)
734 return -EPERM;
735
736 if (memcmp(buf, "1", 1))
737 config3 = chip->config3 & (~ADT7516_AIN_IN_VREF);
738 else
739 config3 = chip->config3 | ADT7516_AIN_IN_VREF;
740
741 ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG3, config3);
742 if (ret)
743 return -EIO;
744
745 chip->config3 = config3;
746
747 return len;
748}
749
750static IIO_DEVICE_ATTR(AIN_internal_Vref, S_IRUGO | S_IWUSR,
751 adt7316_show_AIN_internal_Vref,
752 adt7316_store_AIN_internal_Vref,
753 0);
754
755
756static ssize_t adt7316_show_enable_prop_DACA(struct device *dev,
757 struct device_attribute *attr,
758 char *buf)
759{
760 struct iio_dev *dev_info = dev_get_drvdata(dev);
761 struct adt7316_chip_info *chip = dev_info->dev_data;
762
763 return sprintf(buf, "%d\n",
764 !!(chip->config3 & ADT7316_EN_IN_TEMP_PROP_DACA));
765}
766
767static ssize_t adt7316_store_enable_prop_DACA(struct device *dev,
768 struct device_attribute *attr,
769 const char *buf,
770 size_t len)
771{
772 struct iio_dev *dev_info = dev_get_drvdata(dev);
773 struct adt7316_chip_info *chip = dev_info->dev_data;
774 u8 config3;
775 int ret;
776
777 config3 = chip->config3 & (~ADT7316_EN_IN_TEMP_PROP_DACA);
778 if (!memcmp(buf, "1", 1))
779 config3 |= ADT7316_EN_IN_TEMP_PROP_DACA;
780
781 ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG3, config3);
782 if (ret)
783 return -EIO;
784
785 chip->config3 = config3;
786
787 return len;
788}
789
790static IIO_DEVICE_ATTR(enable_proportion_DACA, S_IRUGO | S_IWUSR,
791 adt7316_show_enable_prop_DACA,
792 adt7316_store_enable_prop_DACA,
793 0);
794
795static ssize_t adt7316_show_enable_prop_DACB(struct device *dev,
796 struct device_attribute *attr,
797 char *buf)
798{
799 struct iio_dev *dev_info = dev_get_drvdata(dev);
800 struct adt7316_chip_info *chip = dev_info->dev_data;
801
802 return sprintf(buf, "%d\n",
803 !!(chip->config3 & ADT7316_EN_EX_TEMP_PROP_DACB));
804}
805
806static ssize_t adt7316_store_enable_prop_DACB(struct device *dev,
807 struct device_attribute *attr,
808 const char *buf,
809 size_t len)
810{
811 struct iio_dev *dev_info = dev_get_drvdata(dev);
812 struct adt7316_chip_info *chip = dev_info->dev_data;
813 u8 config3;
814 int ret;
815
816 config3 = chip->config3 & (~ADT7316_EN_EX_TEMP_PROP_DACB);
817 if (!memcmp(buf, "1", 1))
818 config3 |= ADT7316_EN_EX_TEMP_PROP_DACB;
819
820 ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG3, config3);
821 if (ret)
822 return -EIO;
823
824 chip->config3 = config3;
825
826 return len;
827}
828
829static IIO_DEVICE_ATTR(enable_proportion_DACB, S_IRUGO | S_IWUSR,
830 adt7316_show_enable_prop_DACB,
831 adt7316_store_enable_prop_DACB,
832 0);
833
834static ssize_t adt7316_show_DAC_2Vref_ch_mask(struct device *dev,
835 struct device_attribute *attr,
836 char *buf)
837{
838 struct iio_dev *dev_info = dev_get_drvdata(dev);
839 struct adt7316_chip_info *chip = dev_info->dev_data;
840
841 return sprintf(buf, "0x%x\n",
842 chip->dac_config & ADT7316_DA_2VREF_CH_MASK);
843}
844
845static ssize_t adt7316_store_DAC_2Vref_ch_mask(struct device *dev,
846 struct device_attribute *attr,
847 const char *buf,
848 size_t len)
849{
850 struct iio_dev *dev_info = dev_get_drvdata(dev);
851 struct adt7316_chip_info *chip = dev_info->dev_data;
852 u8 dac_config;
853 unsigned long data = 0;
854 int ret;
855
856 ret = strict_strtoul(buf, 16, &data);
857 if (ret || data > ADT7316_DA_2VREF_CH_MASK)
858 return -EINVAL;
859
860 dac_config = chip->dac_config & (~ADT7316_DA_2VREF_CH_MASK);
861 dac_config |= data;
862
863 ret = chip->bus.write(chip->bus.client, ADT7316_DAC_CONFIG, dac_config);
864 if (ret)
865 return -EIO;
866
867 chip->dac_config = dac_config;
868
869 return len;
870}
871
872static IIO_DEVICE_ATTR(DAC_2Vref_channels_mask, S_IRUGO | S_IWUSR,
873 adt7316_show_DAC_2Vref_ch_mask,
874 adt7316_store_DAC_2Vref_ch_mask,
875 0);
876
877static ssize_t adt7316_show_DAC_update_mode(struct device *dev,
878 struct device_attribute *attr,
879 char *buf)
880{
881 struct iio_dev *dev_info = dev_get_drvdata(dev);
882 struct adt7316_chip_info *chip = dev_info->dev_data;
883
884 if (!(chip->config3 & ADT7316_DA_EN_VIA_DAC_LDCA))
885 return sprintf(buf, "manual\n");
886 else {
887 switch (chip->dac_config & ADT7316_DA_EN_MODE_MASK) {
888 case ADT7316_DA_EN_MODE_SINGLE:
889 return sprintf(buf, "0 - auto at any MSB DAC writing\n");
890 case ADT7316_DA_EN_MODE_AB_CD:
891 return sprintf(buf, "1 - auto at MSB DAC AB and CD writing\n");
892 case ADT7316_DA_EN_MODE_ABCD:
893 return sprintf(buf, "2 - auto at MSB DAC ABCD writing\n");
894 default:
895 return sprintf(buf, "3 - manual\n");
896 };
897 }
898}
899
900static ssize_t adt7316_store_DAC_update_mode(struct device *dev,
901 struct device_attribute *attr,
902 const char *buf,
903 size_t len)
904{
905 struct iio_dev *dev_info = dev_get_drvdata(dev);
906 struct adt7316_chip_info *chip = dev_info->dev_data;
907 u8 dac_config;
908 unsigned long data;
909 int ret;
910
911 if (!(chip->config3 & ADT7316_DA_EN_VIA_DAC_LDCA))
912 return -EPERM;
913
914 ret = strict_strtoul(buf, 10, &data);
915 if (ret || data > ADT7316_DA_EN_MODE_MASK)
916 return -EINVAL;
917
918 dac_config = chip->dac_config & (~ADT7316_DA_EN_MODE_MASK);
919 dac_config |= data;
920
921 ret = chip->bus.write(chip->bus.client, ADT7316_DAC_CONFIG, dac_config);
922 if (ret)
923 return -EIO;
924
925 chip->dac_config = dac_config;
926
927 return len;
928}
929
930static IIO_DEVICE_ATTR(DAC_update_mode, S_IRUGO | S_IWUSR,
931 adt7316_show_DAC_update_mode,
932 adt7316_store_DAC_update_mode,
933 0);
934
935static ssize_t adt7316_show_all_DAC_update_modes(struct device *dev,
936 struct device_attribute *attr,
937 char *buf)
938{
939 struct iio_dev *dev_info = dev_get_drvdata(dev);
940 struct adt7316_chip_info *chip = dev_info->dev_data;
941
942 if (chip->config3 & ADT7316_DA_EN_VIA_DAC_LDCA)
943 return sprintf(buf, "0 - auto at any MSB DAC writing\n"
944 "1 - auto at MSB DAC AB and CD writing\n"
945 "2 - auto at MSB DAC ABCD writing\n"
946 "3 - manual\n");
947 else
948 return sprintf(buf, "manual\n");
949}
950
951static IIO_DEVICE_ATTR(all_DAC_update_modes, S_IRUGO,
952 adt7316_show_all_DAC_update_modes, NULL, 0);
953
954
955static ssize_t adt7316_store_update_DAC(struct device *dev,
956 struct device_attribute *attr,
957 const char *buf,
958 size_t len)
959{
960 struct iio_dev *dev_info = dev_get_drvdata(dev);
961 struct adt7316_chip_info *chip = dev_info->dev_data;
962 u8 ldac_config;
963 unsigned long data;
964 int ret;
965
966 if (chip->config3 & ADT7316_DA_EN_VIA_DAC_LDCA) {
967 if ((chip->dac_config & ADT7316_DA_EN_MODE_MASK) !=
968 ADT7316_DA_EN_MODE_LDAC)
969 return -EPERM;
970
971 ret = strict_strtoul(buf, 16, &data);
972 if (ret || data > ADT7316_LDAC_EN_DA_MASK)
973 return -EINVAL;
974
975 ldac_config = chip->ldac_config & (~ADT7316_LDAC_EN_DA_MASK);
976 ldac_config |= data;
977
978 ret = chip->bus.write(chip->bus.client, ADT7316_LDAC_CONFIG,
979 ldac_config);
980 if (ret)
981 return -EIO;
982 } else {
983 gpio_set_value(chip->ldac_pin, 0);
984 gpio_set_value(chip->ldac_pin, 1);
985 }
986
987 return len;
988}
989
990static IIO_DEVICE_ATTR(update_DAC, S_IRUGO | S_IWUSR,
991 NULL,
992 adt7316_store_update_DAC,
993 0);
994
995static ssize_t adt7316_show_DA_AB_Vref_bypass(struct device *dev,
996 struct device_attribute *attr,
997 char *buf)
998{
999 struct iio_dev *dev_info = dev_get_drvdata(dev);
1000 struct adt7316_chip_info *chip = dev_info->dev_data;
1001
1002 if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX)
1003 return -EPERM;
1004
1005 return sprintf(buf, "%d\n",
1006 !!(chip->dac_config & ADT7316_VREF_BYPASS_DAC_AB));
1007}
1008
1009static ssize_t adt7316_store_DA_AB_Vref_bypass(struct device *dev,
1010 struct device_attribute *attr,
1011 const char *buf,
1012 size_t len)
1013{
1014 struct iio_dev *dev_info = dev_get_drvdata(dev);
1015 struct adt7316_chip_info *chip = dev_info->dev_data;
1016 u8 dac_config;
1017 int ret;
1018
1019 if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX)
1020 return -EPERM;
1021
1022 dac_config = chip->dac_config & (~ADT7316_VREF_BYPASS_DAC_AB);
1023 if (!memcmp(buf, "1", 1))
1024 dac_config |= ADT7316_VREF_BYPASS_DAC_AB;
1025
1026 ret = chip->bus.write(chip->bus.client, ADT7316_DAC_CONFIG, dac_config);
1027 if (ret)
1028 return -EIO;
1029
1030 chip->dac_config = dac_config;
1031
1032 return len;
1033}
1034
1035static IIO_DEVICE_ATTR(DA_AB_Vref_bypass, S_IRUGO | S_IWUSR,
1036 adt7316_show_DA_AB_Vref_bypass,
1037 adt7316_store_DA_AB_Vref_bypass,
1038 0);
1039
1040static ssize_t adt7316_show_DA_CD_Vref_bypass(struct device *dev,
1041 struct device_attribute *attr,
1042 char *buf)
1043{
1044 struct iio_dev *dev_info = dev_get_drvdata(dev);
1045 struct adt7316_chip_info *chip = dev_info->dev_data;
1046
1047 if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX)
1048 return -EPERM;
1049
1050 return sprintf(buf, "%d\n",
1051 !!(chip->dac_config & ADT7316_VREF_BYPASS_DAC_CD));
1052}
1053
1054static ssize_t adt7316_store_DA_CD_Vref_bypass(struct device *dev,
1055 struct device_attribute *attr,
1056 const char *buf,
1057 size_t len)
1058{
1059 struct iio_dev *dev_info = dev_get_drvdata(dev);
1060 struct adt7316_chip_info *chip = dev_info->dev_data;
1061 u8 dac_config;
1062 int ret;
1063
1064 if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX)
1065 return -EPERM;
1066
1067 dac_config = chip->dac_config & (~ADT7316_VREF_BYPASS_DAC_CD);
1068 if (!memcmp(buf, "1", 1))
1069 dac_config |= ADT7316_VREF_BYPASS_DAC_CD;
1070
1071 ret = chip->bus.write(chip->bus.client, ADT7316_DAC_CONFIG, dac_config);
1072 if (ret)
1073 return -EIO;
1074
1075 chip->dac_config = dac_config;
1076
1077 return len;
1078}
1079
1080static IIO_DEVICE_ATTR(DA_CD_Vref_bypass, S_IRUGO | S_IWUSR,
1081 adt7316_show_DA_CD_Vref_bypass,
1082 adt7316_store_DA_CD_Vref_bypass,
1083 0);
1084
1085static ssize_t adt7316_show_DAC_internal_Vref(struct device *dev,
1086 struct device_attribute *attr,
1087 char *buf)
1088{
1089 struct iio_dev *dev_info = dev_get_drvdata(dev);
1090 struct adt7316_chip_info *chip = dev_info->dev_data;
1091
1092 if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX)
1093 return sprintf(buf, "0x%x\n",
1094 (chip->dac_config & ADT7516_DAC_IN_VREF_MASK) >>
1095 ADT7516_DAC_IN_VREF_OFFSET);
1096 else
1097 return sprintf(buf, "%d\n",
1098 !!(chip->dac_config & ADT7316_DAC_IN_VREF));
1099}
1100
1101static ssize_t adt7316_store_DAC_internal_Vref(struct device *dev,
1102 struct device_attribute *attr,
1103 const char *buf,
1104 size_t len)
1105{
1106 struct iio_dev *dev_info = dev_get_drvdata(dev);
1107 struct adt7316_chip_info *chip = dev_info->dev_data;
1108 u8 ldac_config;
1109 unsigned long data;
1110 int ret;
1111
1112 if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX) {
1113 ret = strict_strtoul(buf, 16, &data);
1114 if (ret || data > 3)
1115 return -EINVAL;
1116
1117 ldac_config = chip->ldac_config & (~ADT7516_DAC_IN_VREF_MASK);
1118 if (data & 0x1)
1119 ldac_config |= ADT7516_DAC_AB_IN_VREF;
1120 else if (data & 0x2)
1121 ldac_config |= ADT7516_DAC_CD_IN_VREF;
1122 } else {
1123 ret = strict_strtoul(buf, 16, &data);
1124 if (ret)
1125 return -EINVAL;
1126
1127 ldac_config = chip->ldac_config & (~ADT7316_DAC_IN_VREF);
1128 if (data)
1129 ldac_config = chip->ldac_config | ADT7316_DAC_IN_VREF;
1130 }
1131
1132 ret = chip->bus.write(chip->bus.client, ADT7316_LDAC_CONFIG, ldac_config);
1133 if (ret)
1134 return -EIO;
1135
1136 chip->ldac_config = ldac_config;
1137
1138 return len;
1139}
1140
1141static IIO_DEVICE_ATTR(DAC_internal_Vref, S_IRUGO | S_IWUSR,
1142 adt7316_show_DAC_internal_Vref,
1143 adt7316_store_DAC_internal_Vref,
1144 0);
1145
1146static ssize_t adt7316_show_ad(struct adt7316_chip_info *chip,
1147 int channel, char *buf)
1148{
1149 u16 data;
1150 u8 msb, lsb;
1151 char sign = ' ';
1152 int ret;
1153
1154 if ((chip->config2 & ADT7316_AD_SINGLE_CH_MODE) &&
1155 channel != (chip->config2 & ADT7516_AD_SINGLE_CH_MASK))
1156 return -EPERM;
1157
1158 switch (channel) {
1159 case ADT7316_AD_SINGLE_CH_IN:
1160 ret = chip->bus.read(chip->bus.client,
1161 ADT7316_LSB_IN_TEMP_VDD, &lsb);
1162 if (ret)
1163 return -EIO;
1164
1165 ret = chip->bus.read(chip->bus.client,
1166 ADT7316_AD_MSB_DATA_BASE + channel, &msb);
1167 if (ret)
1168 return -EIO;
1169
1170 data = msb << ADT7316_T_VALUE_FLOAT_OFFSET;
1171 data |= lsb & ADT7316_LSB_IN_TEMP_MASK;
1172 break;
1173 case ADT7316_AD_SINGLE_CH_VDD:
1174 ret = chip->bus.read(chip->bus.client,
1175 ADT7316_LSB_IN_TEMP_VDD, &lsb);
1176 if (ret)
1177 return -EIO;
1178
1179 ret = chip->bus.read(chip->bus.client,
1180
1181 ADT7316_AD_MSB_DATA_BASE + channel, &msb);
1182 if (ret)
1183 return -EIO;
1184
1185 data = msb << ADT7316_T_VALUE_FLOAT_OFFSET;
1186 data |= (lsb & ADT7316_LSB_VDD_MASK) >> ADT7316_LSB_VDD_OFFSET;
1187 return sprintf(buf, "%d\n", data);
1188 default:
1189 ret = chip->bus.read(chip->bus.client,
1190 ADT7316_LSB_EX_TEMP_AIN, &lsb);
1191 if (ret)
1192 return -EIO;
1193
1194 ret = chip->bus.read(chip->bus.client,
1195 ADT7316_AD_MSB_DATA_BASE + channel, &msb);
1196 if (ret)
1197 return -EIO;
1198
1199 data = msb << ADT7316_T_VALUE_FLOAT_OFFSET;
1200 data |= lsb & (ADT7316_LSB_EX_TEMP_MASK <<
1201 (ADT7516_LSB_AIN_SHIFT * (channel -
1202 (ADT7316_MSB_EX_TEMP - ADT7316_AD_MSB_DATA_BASE))));
1203
1204 if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX)
1205 return sprintf(buf, "%d\n", data);
1206 else
1207 break;
1208 };
1209
1210 if (data & ADT7316_T_VALUE_SIGN) {
1211
1212 data = (ADT7316_T_VALUE_SIGN << 1) - data;
1213 sign = '-';
1214 }
1215
1216 return sprintf(buf, "%c%d.%.2d\n", sign,
1217 (data >> ADT7316_T_VALUE_FLOAT_OFFSET),
1218 (data & ADT7316_T_VALUE_FLOAT_MASK) * 25);
1219}
1220
1221static ssize_t adt7316_show_VDD(struct device *dev,
1222 struct device_attribute *attr,
1223 char *buf)
1224{
1225 struct iio_dev *dev_info = dev_get_drvdata(dev);
1226 struct adt7316_chip_info *chip = dev_info->dev_data;
1227
1228 return adt7316_show_ad(chip, ADT7316_AD_SINGLE_CH_VDD, buf);
1229}
1230static IIO_DEVICE_ATTR(VDD, S_IRUGO, adt7316_show_VDD, NULL, 0);
1231
1232static ssize_t adt7316_show_in_temp(struct device *dev,
1233 struct device_attribute *attr,
1234 char *buf)
1235{
1236 struct iio_dev *dev_info = dev_get_drvdata(dev);
1237 struct adt7316_chip_info *chip = dev_info->dev_data;
1238
1239 return adt7316_show_ad(chip, ADT7316_AD_SINGLE_CH_IN, buf);
1240}
1241
1242static IIO_DEVICE_ATTR(in_temp, S_IRUGO, adt7316_show_in_temp, NULL, 0);
1243
1244static ssize_t adt7316_show_ex_temp_AIN1(struct device *dev,
1245 struct device_attribute *attr,
1246 char *buf)
1247{
1248 struct iio_dev *dev_info = dev_get_drvdata(dev);
1249 struct adt7316_chip_info *chip = dev_info->dev_data;
1250
1251 return adt7316_show_ad(chip, ADT7316_AD_SINGLE_CH_EX, buf);
1252}
1253
1254static IIO_DEVICE_ATTR(ex_temp_AIN1, S_IRUGO, adt7316_show_ex_temp_AIN1, NULL, 0);
1255static IIO_DEVICE_ATTR(ex_temp, S_IRUGO, adt7316_show_ex_temp_AIN1, NULL, 0);
1256
1257static ssize_t adt7316_show_AIN2(struct device *dev,
1258 struct device_attribute *attr,
1259 char *buf)
1260{
1261 struct iio_dev *dev_info = dev_get_drvdata(dev);
1262 struct adt7316_chip_info *chip = dev_info->dev_data;
1263
1264 return adt7316_show_ad(chip, ADT7516_AD_SINGLE_CH_AIN2, buf);
1265}
1266static IIO_DEVICE_ATTR(AIN2, S_IRUGO, adt7316_show_AIN2, NULL, 0);
1267
1268static ssize_t adt7316_show_AIN3(struct device *dev,
1269 struct device_attribute *attr,
1270 char *buf)
1271{
1272 struct iio_dev *dev_info = dev_get_drvdata(dev);
1273 struct adt7316_chip_info *chip = dev_info->dev_data;
1274
1275 return adt7316_show_ad(chip, ADT7516_AD_SINGLE_CH_AIN3, buf);
1276}
1277static IIO_DEVICE_ATTR(AIN3, S_IRUGO, adt7316_show_AIN3, NULL, 0);
1278
1279static ssize_t adt7316_show_AIN4(struct device *dev,
1280 struct device_attribute *attr,
1281 char *buf)
1282{
1283 struct iio_dev *dev_info = dev_get_drvdata(dev);
1284 struct adt7316_chip_info *chip = dev_info->dev_data;
1285
1286 return adt7316_show_ad(chip, ADT7516_AD_SINGLE_CH_AIN4, buf);
1287}
1288static IIO_DEVICE_ATTR(AIN4, S_IRUGO, adt7316_show_AIN4, NULL, 0);
1289
1290static ssize_t adt7316_show_temp_offset(struct adt7316_chip_info *chip,
1291 int offset_addr, char *buf)
1292{
1293 int data;
1294 u8 val;
1295 int ret;
1296
1297 ret = chip->bus.read(chip->bus.client, offset_addr, &val);
1298 if (ret)
1299 return -EIO;
1300
1301 data = (int)val;
1302 if (val & 0x80)
1303 data -= 256;
1304
1305 return sprintf(buf, "%d\n", data);
1306}
1307
1308static ssize_t adt7316_store_temp_offset(struct adt7316_chip_info *chip,
1309 int offset_addr, const char *buf, size_t len)
1310{
1311 long data;
1312 u8 val;
1313 int ret;
1314
1315 ret = strict_strtol(buf, 10, &data);
1316 if (ret || data > 127 || data < -128)
1317 return -EINVAL;
1318
1319 if (data < 0)
1320 data += 256;
1321
1322 val = (u8)data;
1323
1324 ret = chip->bus.write(chip->bus.client, offset_addr, val);
1325 if (ret)
1326 return -EIO;
1327
1328 return len;
1329}
1330
1331static ssize_t adt7316_show_in_temp_offset(struct device *dev,
1332 struct device_attribute *attr,
1333 char *buf)
1334{
1335 struct iio_dev *dev_info = dev_get_drvdata(dev);
1336 struct adt7316_chip_info *chip = dev_info->dev_data;
1337
1338 return adt7316_show_temp_offset(chip, ADT7316_IN_TEMP_OFFSET, buf);
1339}
1340
1341static ssize_t adt7316_store_in_temp_offset(struct device *dev,
1342 struct device_attribute *attr,
1343 const char *buf,
1344 size_t len)
1345{
1346 struct iio_dev *dev_info = dev_get_drvdata(dev);
1347 struct adt7316_chip_info *chip = dev_info->dev_data;
1348
1349 return adt7316_store_temp_offset(chip, ADT7316_IN_TEMP_OFFSET, buf, len);
1350}
1351
1352static IIO_DEVICE_ATTR(in_temp_offset, S_IRUGO | S_IWUSR,
1353 adt7316_show_in_temp_offset,
1354 adt7316_store_in_temp_offset, 0);
1355
1356static ssize_t adt7316_show_ex_temp_offset(struct device *dev,
1357 struct device_attribute *attr,
1358 char *buf)
1359{
1360 struct iio_dev *dev_info = dev_get_drvdata(dev);
1361 struct adt7316_chip_info *chip = dev_info->dev_data;
1362
1363 return adt7316_show_temp_offset(chip, ADT7316_EX_TEMP_OFFSET, buf);
1364}
1365
1366static ssize_t adt7316_store_ex_temp_offset(struct device *dev,
1367 struct device_attribute *attr,
1368 const char *buf,
1369 size_t len)
1370{
1371 struct iio_dev *dev_info = dev_get_drvdata(dev);
1372 struct adt7316_chip_info *chip = dev_info->dev_data;
1373
1374 return adt7316_store_temp_offset(chip, ADT7316_EX_TEMP_OFFSET, buf, len);
1375}
1376
1377static IIO_DEVICE_ATTR(ex_temp_offset, S_IRUGO | S_IWUSR,
1378 adt7316_show_ex_temp_offset,
1379 adt7316_store_ex_temp_offset, 0);
1380
1381static ssize_t adt7316_show_in_analog_temp_offset(struct device *dev,
1382 struct device_attribute *attr,
1383 char *buf)
1384{
1385 struct iio_dev *dev_info = dev_get_drvdata(dev);
1386 struct adt7316_chip_info *chip = dev_info->dev_data;
1387
1388 return adt7316_show_temp_offset(chip,
1389 ADT7316_IN_ANALOG_TEMP_OFFSET, buf);
1390}
1391
1392static ssize_t adt7316_store_in_analog_temp_offset(struct device *dev,
1393 struct device_attribute *attr,
1394 const char *buf,
1395 size_t len)
1396{
1397 struct iio_dev *dev_info = dev_get_drvdata(dev);
1398 struct adt7316_chip_info *chip = dev_info->dev_data;
1399
1400 return adt7316_store_temp_offset(chip,
1401 ADT7316_IN_ANALOG_TEMP_OFFSET, buf, len);
1402}
1403
1404static IIO_DEVICE_ATTR(in_analog_temp_offset, S_IRUGO | S_IWUSR,
1405 adt7316_show_in_analog_temp_offset,
1406 adt7316_store_in_analog_temp_offset, 0);
1407
1408static ssize_t adt7316_show_ex_analog_temp_offset(struct device *dev,
1409 struct device_attribute *attr,
1410 char *buf)
1411{
1412 struct iio_dev *dev_info = dev_get_drvdata(dev);
1413 struct adt7316_chip_info *chip = dev_info->dev_data;
1414
1415 return adt7316_show_temp_offset(chip,
1416 ADT7316_EX_ANALOG_TEMP_OFFSET, buf);
1417}
1418
1419static ssize_t adt7316_store_ex_analog_temp_offset(struct device *dev,
1420 struct device_attribute *attr,
1421 const char *buf,
1422 size_t len)
1423{
1424 struct iio_dev *dev_info = dev_get_drvdata(dev);
1425 struct adt7316_chip_info *chip = dev_info->dev_data;
1426
1427 return adt7316_store_temp_offset(chip,
1428 ADT7316_EX_ANALOG_TEMP_OFFSET, buf, len);
1429}
1430
1431static IIO_DEVICE_ATTR(ex_analog_temp_offset, S_IRUGO | S_IWUSR,
1432 adt7316_show_ex_analog_temp_offset,
1433 adt7316_store_ex_analog_temp_offset, 0);
1434
1435static ssize_t adt7316_show_DAC(struct adt7316_chip_info *chip,
1436 int channel, char *buf)
1437{
1438 u16 data;
1439 u8 msb, lsb, offset;
1440 int ret;
1441
1442 if (channel >= ADT7316_DA_MSB_DATA_REGS ||
1443 (channel == 0 &&
1444 (chip->config3 & ADT7316_EN_IN_TEMP_PROP_DACA)) ||
1445 (channel == 1 &&
1446 (chip->config3 & ADT7316_EN_EX_TEMP_PROP_DACB)))
1447 return -EPERM;
1448
1449 offset = chip->dac_bits - 8;
1450
1451 if (chip->dac_bits > 8) {
1452 ret = chip->bus.read(chip->bus.client,
1453 ADT7316_DA_DATA_BASE + channel * 2, &lsb);
1454 if (ret)
1455 return -EIO;
1456 }
1457
1458 ret = chip->bus.read(chip->bus.client,
1459 ADT7316_DA_DATA_BASE + 1 + channel * 2, &msb);
1460 if (ret)
1461 return -EIO;
1462
1463 data = (msb << offset) + (lsb & ((1 << offset) - 1));
1464
1465 return sprintf(buf, "%d\n", data);
1466}
1467
1468static ssize_t adt7316_store_DAC(struct adt7316_chip_info *chip,
1469 int channel, const char *buf, size_t len)
1470{
1471 u8 msb, lsb, offset;
1472 unsigned long data;
1473 int ret;
1474
1475 if (channel >= ADT7316_DA_MSB_DATA_REGS ||
1476 (channel == 0 &&
1477 (chip->config3 & ADT7316_EN_IN_TEMP_PROP_DACA)) ||
1478 (channel == 1 &&
1479 (chip->config3 & ADT7316_EN_EX_TEMP_PROP_DACB)))
1480 return -EPERM;
1481
1482 offset = chip->dac_bits - 8;
1483
1484 ret = strict_strtoul(buf, 10, &data);
1485 if (ret || data >= (1 << chip->dac_bits))
1486 return -EINVAL;
1487
1488 if (chip->dac_bits > 8) {
1489 lsb = data & (1 << offset);
1490 ret = chip->bus.write(chip->bus.client,
1491 ADT7316_DA_DATA_BASE + channel * 2, lsb);
1492 if (ret)
1493 return -EIO;
1494 }
1495
1496 msb = data >> offset;
1497 ret = chip->bus.write(chip->bus.client,
1498 ADT7316_DA_DATA_BASE + 1 + channel * 2, msb);
1499 if (ret)
1500 return -EIO;
1501
1502 return len;
1503}
1504
1505static ssize_t adt7316_show_DAC_A(struct device *dev,
1506 struct device_attribute *attr,
1507 char *buf)
1508{
1509 struct iio_dev *dev_info = dev_get_drvdata(dev);
1510 struct adt7316_chip_info *chip = dev_info->dev_data;
1511
1512 return adt7316_show_DAC(chip, 0, buf);
1513}
1514
1515static ssize_t adt7316_store_DAC_A(struct device *dev,
1516 struct device_attribute *attr,
1517 const char *buf,
1518 size_t len)
1519{
1520 struct iio_dev *dev_info = dev_get_drvdata(dev);
1521 struct adt7316_chip_info *chip = dev_info->dev_data;
1522
1523 return adt7316_store_DAC(chip, 0, buf, len);
1524}
1525
1526static IIO_DEVICE_ATTR(DAC_A, S_IRUGO | S_IWUSR, adt7316_show_DAC_A,
1527 adt7316_store_DAC_A, 0);
1528
1529static ssize_t adt7316_show_DAC_B(struct device *dev,
1530 struct device_attribute *attr,
1531 char *buf)
1532{
1533 struct iio_dev *dev_info = dev_get_drvdata(dev);
1534 struct adt7316_chip_info *chip = dev_info->dev_data;
1535
1536 return adt7316_show_DAC(chip, 1, buf);
1537}
1538
1539static ssize_t adt7316_store_DAC_B(struct device *dev,
1540 struct device_attribute *attr,
1541 const char *buf,
1542 size_t len)
1543{
1544 struct iio_dev *dev_info = dev_get_drvdata(dev);
1545 struct adt7316_chip_info *chip = dev_info->dev_data;
1546
1547 return adt7316_store_DAC(chip, 1, buf, len);
1548}
1549
1550static IIO_DEVICE_ATTR(DAC_B, S_IRUGO | S_IWUSR, adt7316_show_DAC_B,
1551 adt7316_store_DAC_B, 0);
1552
1553static ssize_t adt7316_show_DAC_C(struct device *dev,
1554 struct device_attribute *attr,
1555 char *buf)
1556{
1557 struct iio_dev *dev_info = dev_get_drvdata(dev);
1558 struct adt7316_chip_info *chip = dev_info->dev_data;
1559
1560 return adt7316_show_DAC(chip, 2, buf);
1561}
1562
1563static ssize_t adt7316_store_DAC_C(struct device *dev,
1564 struct device_attribute *attr,
1565 const char *buf,
1566 size_t len)
1567{
1568 struct iio_dev *dev_info = dev_get_drvdata(dev);
1569 struct adt7316_chip_info *chip = dev_info->dev_data;
1570
1571 return adt7316_store_DAC(chip, 2, buf, len);
1572}
1573
1574static IIO_DEVICE_ATTR(DAC_C, S_IRUGO | S_IWUSR, adt7316_show_DAC_C,
1575 adt7316_store_DAC_C, 0);
1576
1577static ssize_t adt7316_show_DAC_D(struct device *dev,
1578 struct device_attribute *attr,
1579 char *buf)
1580{
1581 struct iio_dev *dev_info = dev_get_drvdata(dev);
1582 struct adt7316_chip_info *chip = dev_info->dev_data;
1583
1584 return adt7316_show_DAC(chip, 3, buf);
1585}
1586
1587static ssize_t adt7316_store_DAC_D(struct device *dev,
1588 struct device_attribute *attr,
1589 const char *buf,
1590 size_t len)
1591{
1592 struct iio_dev *dev_info = dev_get_drvdata(dev);
1593 struct adt7316_chip_info *chip = dev_info->dev_data;
1594
1595 return adt7316_store_DAC(chip, 3, buf, len);
1596}
1597
1598static IIO_DEVICE_ATTR(DAC_D, S_IRUGO | S_IWUSR, adt7316_show_DAC_D,
1599 adt7316_store_DAC_D, 0);
1600
1601static ssize_t adt7316_show_device_id(struct device *dev,
1602 struct device_attribute *attr,
1603 char *buf)
1604{
1605 struct iio_dev *dev_info = dev_get_drvdata(dev);
1606 struct adt7316_chip_info *chip = dev_info->dev_data;
1607 u8 id;
1608 int ret;
1609
1610 ret = chip->bus.read(chip->bus.client, ADT7316_DEVICE_ID, &id);
1611 if (ret)
1612 return -EIO;
1613
1614 return sprintf(buf, "%d\n", id);
1615}
1616
1617static IIO_DEVICE_ATTR(device_id, S_IRUGO, adt7316_show_device_id, NULL, 0);
1618
1619static ssize_t adt7316_show_manufactorer_id(struct device *dev,
1620 struct device_attribute *attr,
1621 char *buf)
1622{
1623 struct iio_dev *dev_info = dev_get_drvdata(dev);
1624 struct adt7316_chip_info *chip = dev_info->dev_data;
1625 u8 id;
1626 int ret;
1627
1628 ret = chip->bus.read(chip->bus.client, ADT7316_MANUFACTURE_ID, &id);
1629 if (ret)
1630 return -EIO;
1631
1632 return sprintf(buf, "%d\n", id);
1633}
1634
1635static IIO_DEVICE_ATTR(manufactorer_id, S_IRUGO,
1636 adt7316_show_manufactorer_id, NULL, 0);
1637
1638static ssize_t adt7316_show_device_rev(struct device *dev,
1639 struct device_attribute *attr,
1640 char *buf)
1641{
1642 struct iio_dev *dev_info = dev_get_drvdata(dev);
1643 struct adt7316_chip_info *chip = dev_info->dev_data;
1644 u8 rev;
1645 int ret;
1646
1647 ret = chip->bus.read(chip->bus.client, ADT7316_DEVICE_REV, &rev);
1648 if (ret)
1649 return -EIO;
1650
1651 return sprintf(buf, "%d\n", rev);
1652}
1653
1654static IIO_DEVICE_ATTR(device_rev, S_IRUGO, adt7316_show_device_rev, NULL, 0);
1655
1656static ssize_t adt7316_show_bus_type(struct device *dev,
1657 struct device_attribute *attr,
1658 char *buf)
1659{
1660 struct iio_dev *dev_info = dev_get_drvdata(dev);
1661 struct adt7316_chip_info *chip = dev_info->dev_data;
1662 u8 stat;
1663 int ret;
1664
1665 ret = chip->bus.read(chip->bus.client, ADT7316_SPI_LOCK_STAT, &stat);
1666 if (ret)
1667 return -EIO;
1668
1669 if (stat)
1670 return sprintf(buf, "spi\n");
1671 else
1672 return sprintf(buf, "i2c\n");
1673}
1674
1675static IIO_DEVICE_ATTR(bus_type, S_IRUGO, adt7316_show_bus_type, NULL, 0);
1676
1677static ssize_t adt7316_show_name(struct device *dev,
1678 struct device_attribute *attr,
1679 char *buf)
1680{
1681 struct iio_dev *dev_info = dev_get_drvdata(dev);
1682 struct adt7316_chip_info *chip = dev_info->dev_data;
1683
1684 return sprintf(buf, "%s\n", chip->name);
1685}
1686
1687static IIO_DEVICE_ATTR(name, S_IRUGO, adt7316_show_name, NULL, 0);
1688
1689static struct attribute *adt7316_attributes[] = {
1690 &iio_dev_attr_all_modes.dev_attr.attr,
1691 &iio_dev_attr_mode.dev_attr.attr,
1692 &iio_dev_attr_reset.dev_attr.attr,
1693 &iio_dev_attr_enabled.dev_attr.attr,
1694 &iio_dev_attr_ad_channel.dev_attr.attr,
1695 &iio_dev_attr_all_ad_channels.dev_attr.attr,
1696 &iio_dev_attr_disable_averaging.dev_attr.attr,
1697 &iio_dev_attr_enable_smbus_timeout.dev_attr.attr,
1698 &iio_dev_attr_powerdown.dev_attr.attr,
1699 &iio_dev_attr_fast_ad_clock.dev_attr.attr,
1700 &iio_dev_attr_da_high_resolution.dev_attr.attr,
1701 &iio_dev_attr_enable_proportion_DACA.dev_attr.attr,
1702 &iio_dev_attr_enable_proportion_DACB.dev_attr.attr,
1703 &iio_dev_attr_DAC_2Vref_channels_mask.dev_attr.attr,
1704 &iio_dev_attr_DAC_update_mode.dev_attr.attr,
1705 &iio_dev_attr_all_DAC_update_modes.dev_attr.attr,
1706 &iio_dev_attr_update_DAC.dev_attr.attr,
1707 &iio_dev_attr_DA_AB_Vref_bypass.dev_attr.attr,
1708 &iio_dev_attr_DA_CD_Vref_bypass.dev_attr.attr,
1709 &iio_dev_attr_DAC_internal_Vref.dev_attr.attr,
1710 &iio_dev_attr_VDD.dev_attr.attr,
1711 &iio_dev_attr_in_temp.dev_attr.attr,
1712 &iio_dev_attr_ex_temp.dev_attr.attr,
1713 &iio_dev_attr_in_temp_offset.dev_attr.attr,
1714 &iio_dev_attr_ex_temp_offset.dev_attr.attr,
1715 &iio_dev_attr_in_analog_temp_offset.dev_attr.attr,
1716 &iio_dev_attr_ex_analog_temp_offset.dev_attr.attr,
1717 &iio_dev_attr_DAC_A.dev_attr.attr,
1718 &iio_dev_attr_DAC_B.dev_attr.attr,
1719 &iio_dev_attr_DAC_C.dev_attr.attr,
1720 &iio_dev_attr_DAC_D.dev_attr.attr,
1721 &iio_dev_attr_device_id.dev_attr.attr,
1722 &iio_dev_attr_manufactorer_id.dev_attr.attr,
1723 &iio_dev_attr_device_rev.dev_attr.attr,
1724 &iio_dev_attr_bus_type.dev_attr.attr,
1725 &iio_dev_attr_name.dev_attr.attr,
1726 NULL,
1727};
1728
1729static const struct attribute_group adt7316_attribute_group = {
1730 .attrs = adt7316_attributes,
1731};
1732
1733static struct attribute *adt7516_attributes[] = {
1734 &iio_dev_attr_all_modes.dev_attr.attr,
1735 &iio_dev_attr_mode.dev_attr.attr,
1736 &iio_dev_attr_select_ex_temp.dev_attr.attr,
1737 &iio_dev_attr_reset.dev_attr.attr,
1738 &iio_dev_attr_enabled.dev_attr.attr,
1739 &iio_dev_attr_ad_channel.dev_attr.attr,
1740 &iio_dev_attr_all_ad_channels.dev_attr.attr,
1741 &iio_dev_attr_disable_averaging.dev_attr.attr,
1742 &iio_dev_attr_enable_smbus_timeout.dev_attr.attr,
1743 &iio_dev_attr_powerdown.dev_attr.attr,
1744 &iio_dev_attr_fast_ad_clock.dev_attr.attr,
1745 &iio_dev_attr_AIN_internal_Vref.dev_attr.attr,
1746 &iio_dev_attr_da_high_resolution.dev_attr.attr,
1747 &iio_dev_attr_enable_proportion_DACA.dev_attr.attr,
1748 &iio_dev_attr_enable_proportion_DACB.dev_attr.attr,
1749 &iio_dev_attr_DAC_2Vref_channels_mask.dev_attr.attr,
1750 &iio_dev_attr_DAC_update_mode.dev_attr.attr,
1751 &iio_dev_attr_all_DAC_update_modes.dev_attr.attr,
1752 &iio_dev_attr_update_DAC.dev_attr.attr,
1753 &iio_dev_attr_DA_AB_Vref_bypass.dev_attr.attr,
1754 &iio_dev_attr_DA_CD_Vref_bypass.dev_attr.attr,
1755 &iio_dev_attr_DAC_internal_Vref.dev_attr.attr,
1756 &iio_dev_attr_VDD.dev_attr.attr,
1757 &iio_dev_attr_in_temp.dev_attr.attr,
1758 &iio_dev_attr_ex_temp_AIN1.dev_attr.attr,
1759 &iio_dev_attr_AIN2.dev_attr.attr,
1760 &iio_dev_attr_AIN3.dev_attr.attr,
1761 &iio_dev_attr_AIN4.dev_attr.attr,
1762 &iio_dev_attr_in_temp_offset.dev_attr.attr,
1763 &iio_dev_attr_ex_temp_offset.dev_attr.attr,
1764 &iio_dev_attr_in_analog_temp_offset.dev_attr.attr,
1765 &iio_dev_attr_ex_analog_temp_offset.dev_attr.attr,
1766 &iio_dev_attr_DAC_A.dev_attr.attr,
1767 &iio_dev_attr_DAC_B.dev_attr.attr,
1768 &iio_dev_attr_DAC_C.dev_attr.attr,
1769 &iio_dev_attr_DAC_D.dev_attr.attr,
1770 &iio_dev_attr_device_id.dev_attr.attr,
1771 &iio_dev_attr_manufactorer_id.dev_attr.attr,
1772 &iio_dev_attr_device_rev.dev_attr.attr,
1773 &iio_dev_attr_bus_type.dev_attr.attr,
1774 &iio_dev_attr_name.dev_attr.attr,
1775 NULL,
1776};
1777
1778static const struct attribute_group adt7516_attribute_group = {
1779 .attrs = adt7516_attributes,
1780};
1781
1782
1783
1784
1785
1786
1787#define IIO_EVENT_CODE_ADT7316_IN_TEMP_HIGH IIO_BUFFER_EVENT_CODE(0)
1788#define IIO_EVENT_CODE_ADT7316_IN_TEMP_LOW IIO_BUFFER_EVENT_CODE(1)
1789#define IIO_EVENT_CODE_ADT7316_EX_TEMP_HIGH IIO_BUFFER_EVENT_CODE(2)
1790#define IIO_EVENT_CODE_ADT7316_EX_TEMP_LOW IIO_BUFFER_EVENT_CODE(3)
1791#define IIO_EVENT_CODE_ADT7316_EX_TEMP_FAULT IIO_BUFFER_EVENT_CODE(4)
1792#define IIO_EVENT_CODE_ADT7516_AIN1 IIO_BUFFER_EVENT_CODE(5)
1793#define IIO_EVENT_CODE_ADT7516_AIN2 IIO_BUFFER_EVENT_CODE(6)
1794#define IIO_EVENT_CODE_ADT7516_AIN3 IIO_BUFFER_EVENT_CODE(7)
1795#define IIO_EVENT_CODE_ADT7516_AIN4 IIO_BUFFER_EVENT_CODE(8)
1796#define IIO_EVENT_CODE_ADT7316_VDD IIO_BUFFER_EVENT_CODE(9)
1797
1798static void adt7316_interrupt_bh(struct work_struct *work_s)
1799{
1800 struct adt7316_chip_info *chip =
1801 container_of(work_s, struct adt7316_chip_info, thresh_work);
1802 u8 stat1, stat2;
1803 int i, ret, count;
1804
1805 ret = chip->bus.read(chip->bus.client, ADT7316_INT_STAT1, &stat1);
1806 if (!ret) {
1807 if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX)
1808 count = 8;
1809 else
1810 count = 5;
1811
1812 for (i = 0; i < count; i++) {
1813 if (stat1 & (1 << i))
1814 iio_push_event(chip->indio_dev, 0,
1815 IIO_EVENT_CODE_ADT7316_IN_TEMP_HIGH + i,
1816 chip->last_timestamp);
1817 }
1818 }
1819
1820 ret = chip->bus.read(chip->bus.client, ADT7316_INT_STAT2, &stat2);
1821 if (!ret) {
1822 if (stat2 & ADT7316_INT_MASK2_VDD)
1823 iio_push_event(chip->indio_dev, 0,
1824 IIO_EVENT_CODE_ADT7316_VDD,
1825 chip->last_timestamp);
1826 }
1827
1828 enable_irq(chip->bus.irq);
1829}
1830
1831static int adt7316_interrupt(struct iio_dev *dev_info,
1832 int index,
1833 s64 timestamp,
1834 int no_test)
1835{
1836 struct adt7316_chip_info *chip = dev_info->dev_data;
1837
1838 chip->last_timestamp = timestamp;
1839 schedule_work(&chip->thresh_work);
1840
1841 return 0;
1842}
1843
1844IIO_EVENT_SH(adt7316, &adt7316_interrupt);
1845
1846
1847
1848
1849static ssize_t adt7316_show_int_mask(struct device *dev,
1850 struct device_attribute *attr,
1851 char *buf)
1852{
1853 struct iio_dev *dev_info = dev_get_drvdata(dev);
1854 struct adt7316_chip_info *chip = dev_info->dev_data;
1855
1856 return sprintf(buf, "0x%x\n", chip->int_mask);
1857}
1858
1859
1860
1861
1862static ssize_t adt7316_set_int_mask(struct device *dev,
1863 struct device_attribute *attr,
1864 const char *buf,
1865 size_t len)
1866{
1867 struct iio_dev *dev_info = dev_get_drvdata(dev);
1868 struct adt7316_chip_info *chip = dev_info->dev_data;
1869 unsigned long data;
1870 int ret;
1871 u8 mask;
1872
1873 ret = strict_strtoul(buf, 16, &data);
1874 if (ret || data >= ADT7316_VDD_INT_MASK + 1)
1875 return -EINVAL;
1876
1877 if (data & ADT7316_VDD_INT_MASK)
1878 mask = 0;
1879 else
1880 mask = ADT7316_INT_MASK2_VDD;
1881
1882 ret = chip->bus.write(chip->bus.client, ADT7316_INT_MASK2, mask);
1883 if (!ret) {
1884 chip->int_mask &= ~ADT7316_VDD_INT_MASK;
1885 chip->int_mask |= data & ADT7316_VDD_INT_MASK;
1886 }
1887
1888 if (data & ADT7316_TEMP_AIN_INT_MASK) {
1889 if ((chip->id & ID_FAMILY_MASK) == ID_ADT73XX)
1890
1891 mask = (~data) & ADT7316_TEMP_INT_MASK;
1892 else
1893
1894 mask = (~data) & ADT7316_TEMP_AIN_INT_MASK;
1895 }
1896 ret = chip->bus.write(chip->bus.client, ADT7316_INT_MASK1, mask);
1897
1898 chip->int_mask = mask;
1899
1900 return len;
1901}
1902static inline ssize_t adt7316_show_ad_bound(struct device *dev,
1903 struct device_attribute *attr,
1904 u8 bound_reg,
1905 char *buf)
1906{
1907 struct iio_dev *dev_info = dev_get_drvdata(dev);
1908 struct adt7316_chip_info *chip = dev_info->dev_data;
1909 u8 val;
1910 int data;
1911 int ret;
1912
1913 if ((chip->id & ID_FAMILY_MASK) == ID_ADT73XX &&
1914 bound_reg > ADT7316_EX_TEMP_LOW)
1915 return -EPERM;
1916
1917 ret = chip->bus.read(chip->bus.client, bound_reg, &val);
1918 if (ret)
1919 return -EIO;
1920
1921 data = (int)val;
1922
1923 if (!((chip->id & ID_FAMILY_MASK) == ID_ADT75XX &&
1924 (chip->config1 & ADT7516_SEL_AIN1_2_EX_TEMP_MASK) == 0)) {
1925 if (data & 0x80)
1926 data -= 256;
1927 }
1928
1929 return sprintf(buf, "%d\n", data);
1930}
1931
1932static inline ssize_t adt7316_set_ad_bound(struct device *dev,
1933 struct device_attribute *attr,
1934 u8 bound_reg,
1935 const char *buf,
1936 size_t len)
1937{
1938 struct iio_dev *dev_info = dev_get_drvdata(dev);
1939 struct adt7316_chip_info *chip = dev_info->dev_data;
1940 long data;
1941 u8 val;
1942 int ret;
1943
1944 if ((chip->id & ID_FAMILY_MASK) == ID_ADT73XX &&
1945 bound_reg > ADT7316_EX_TEMP_LOW)
1946 return -EPERM;
1947
1948 ret = strict_strtol(buf, 10, &data);
1949 if (ret)
1950 return -EINVAL;
1951
1952 if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX &&
1953 (chip->config1 & ADT7516_SEL_AIN1_2_EX_TEMP_MASK) == 0) {
1954 if (data > 255 || data < 0)
1955 return -EINVAL;
1956 } else {
1957 if (data > 127 || data < -128)
1958 return -EINVAL;
1959
1960 if (data < 0)
1961 data += 256;
1962 }
1963
1964 val = (u8)data;
1965
1966 ret = chip->bus.write(chip->bus.client, bound_reg, val);
1967 if (ret)
1968 return -EIO;
1969
1970 return len;
1971}
1972
1973static ssize_t adt7316_show_in_temp_high(struct device *dev,
1974 struct device_attribute *attr,
1975 char *buf)
1976{
1977 return adt7316_show_ad_bound(dev, attr,
1978 ADT7316_IN_TEMP_HIGH, buf);
1979}
1980
1981static inline ssize_t adt7316_set_in_temp_high(struct device *dev,
1982 struct device_attribute *attr,
1983 const char *buf,
1984 size_t len)
1985{
1986 return adt7316_set_ad_bound(dev, attr,
1987 ADT7316_IN_TEMP_HIGH, buf, len);
1988}
1989
1990static ssize_t adt7316_show_in_temp_low(struct device *dev,
1991 struct device_attribute *attr,
1992 char *buf)
1993{
1994 return adt7316_show_ad_bound(dev, attr,
1995 ADT7316_IN_TEMP_LOW, buf);
1996}
1997
1998static inline ssize_t adt7316_set_in_temp_low(struct device *dev,
1999 struct device_attribute *attr,
2000 const char *buf,
2001 size_t len)
2002{
2003 return adt7316_set_ad_bound(dev, attr,
2004 ADT7316_IN_TEMP_LOW, buf, len);
2005}
2006
2007static ssize_t adt7316_show_ex_temp_ain1_high(struct device *dev,
2008 struct device_attribute *attr,
2009 char *buf)
2010{
2011 return adt7316_show_ad_bound(dev, attr,
2012 ADT7316_EX_TEMP_HIGH, buf);
2013}
2014
2015static inline ssize_t adt7316_set_ex_temp_ain1_high(struct device *dev,
2016 struct device_attribute *attr,
2017 const char *buf,
2018 size_t len)
2019{
2020 return adt7316_set_ad_bound(dev, attr,
2021 ADT7316_EX_TEMP_HIGH, buf, len);
2022}
2023
2024static ssize_t adt7316_show_ex_temp_ain1_low(struct device *dev,
2025 struct device_attribute *attr,
2026 char *buf)
2027{
2028 return adt7316_show_ad_bound(dev, attr,
2029 ADT7316_EX_TEMP_LOW, buf);
2030}
2031
2032static inline ssize_t adt7316_set_ex_temp_ain1_low(struct device *dev,
2033 struct device_attribute *attr,
2034 const char *buf,
2035 size_t len)
2036{
2037 return adt7316_set_ad_bound(dev, attr,
2038 ADT7316_EX_TEMP_LOW, buf, len);
2039}
2040
2041static ssize_t adt7316_show_ain2_high(struct device *dev,
2042 struct device_attribute *attr,
2043 char *buf)
2044{
2045 return adt7316_show_ad_bound(dev, attr,
2046 ADT7516_AIN2_HIGH, buf);
2047}
2048
2049static inline ssize_t adt7316_set_ain2_high(struct device *dev,
2050 struct device_attribute *attr,
2051 const char *buf,
2052 size_t len)
2053{
2054 return adt7316_set_ad_bound(dev, attr,
2055 ADT7516_AIN2_HIGH, buf, len);
2056}
2057
2058static ssize_t adt7316_show_ain2_low(struct device *dev,
2059 struct device_attribute *attr,
2060 char *buf)
2061{
2062 return adt7316_show_ad_bound(dev, attr,
2063 ADT7516_AIN2_LOW, buf);
2064}
2065
2066static inline ssize_t adt7316_set_ain2_low(struct device *dev,
2067 struct device_attribute *attr,
2068 const char *buf,
2069 size_t len)
2070{
2071 return adt7316_set_ad_bound(dev, attr,
2072 ADT7516_AIN2_LOW, buf, len);
2073}
2074
2075static ssize_t adt7316_show_ain3_high(struct device *dev,
2076 struct device_attribute *attr,
2077 char *buf)
2078{
2079 return adt7316_show_ad_bound(dev, attr,
2080 ADT7516_AIN3_HIGH, buf);
2081}
2082
2083static inline ssize_t adt7316_set_ain3_high(struct device *dev,
2084 struct device_attribute *attr,
2085 const char *buf,
2086 size_t len)
2087{
2088 return adt7316_set_ad_bound(dev, attr,
2089 ADT7516_AIN3_HIGH, buf, len);
2090}
2091
2092static ssize_t adt7316_show_ain3_low(struct device *dev,
2093 struct device_attribute *attr,
2094 char *buf)
2095{
2096 return adt7316_show_ad_bound(dev, attr,
2097 ADT7516_AIN3_LOW, buf);
2098}
2099
2100static inline ssize_t adt7316_set_ain3_low(struct device *dev,
2101 struct device_attribute *attr,
2102 const char *buf,
2103 size_t len)
2104{
2105 return adt7316_set_ad_bound(dev, attr,
2106 ADT7516_AIN3_LOW, buf, len);
2107}
2108
2109static ssize_t adt7316_show_ain4_high(struct device *dev,
2110 struct device_attribute *attr,
2111 char *buf)
2112{
2113 return adt7316_show_ad_bound(dev, attr,
2114 ADT7516_AIN4_HIGH, buf);
2115}
2116
2117static inline ssize_t adt7316_set_ain4_high(struct device *dev,
2118 struct device_attribute *attr,
2119 const char *buf,
2120 size_t len)
2121{
2122 return adt7316_set_ad_bound(dev, attr,
2123 ADT7516_AIN4_HIGH, buf, len);
2124}
2125
2126static ssize_t adt7316_show_ain4_low(struct device *dev,
2127 struct device_attribute *attr,
2128 char *buf)
2129{
2130 return adt7316_show_ad_bound(dev, attr,
2131 ADT7516_AIN4_LOW, buf);
2132}
2133
2134static inline ssize_t adt7316_set_ain4_low(struct device *dev,
2135 struct device_attribute *attr,
2136 const char *buf,
2137 size_t len)
2138{
2139 return adt7316_set_ad_bound(dev, attr,
2140 ADT7516_AIN4_LOW, buf, len);
2141}
2142
2143static ssize_t adt7316_show_int_enabled(struct device *dev,
2144 struct device_attribute *attr,
2145 char *buf)
2146{
2147 struct iio_dev *dev_info = dev_get_drvdata(dev);
2148 struct adt7316_chip_info *chip = dev_info->dev_data;
2149
2150 return sprintf(buf, "%d\n", !!(chip->config1 & ADT7316_INT_EN));
2151}
2152
2153static ssize_t adt7316_set_int_enabled(struct device *dev,
2154 struct device_attribute *attr,
2155 const char *buf,
2156 size_t len)
2157{
2158 struct iio_dev *dev_info = dev_get_drvdata(dev);
2159 struct adt7316_chip_info *chip = dev_info->dev_data;
2160 u8 config1;
2161 int ret;
2162
2163 config1 = chip->config1 & (~ADT7316_INT_EN);
2164 if (!memcmp(buf, "1", 1))
2165 config1 |= ADT7316_INT_EN;
2166
2167 ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG1, config1);
2168 if (ret)
2169 return -EIO;
2170
2171 chip->config1 = config1;
2172
2173 return len;
2174}
2175
2176
2177IIO_EVENT_ATTR_SH(int_mask, iio_event_adt7316,
2178 adt7316_show_int_mask, adt7316_set_int_mask, 0);
2179IIO_EVENT_ATTR_SH(in_temp_high, iio_event_adt7316,
2180 adt7316_show_in_temp_high, adt7316_set_in_temp_high, 0);
2181IIO_EVENT_ATTR_SH(in_temp_low, iio_event_adt7316,
2182 adt7316_show_in_temp_low, adt7316_set_in_temp_low, 0);
2183IIO_EVENT_ATTR_SH(ex_temp_high, iio_event_adt7316,
2184 adt7316_show_ex_temp_ain1_high,
2185 adt7316_set_ex_temp_ain1_high, 0);
2186IIO_EVENT_ATTR_SH(ex_temp_low, iio_event_adt7316,
2187 adt7316_show_ex_temp_ain1_low,
2188 adt7316_set_ex_temp_ain1_low, 0);
2189IIO_EVENT_ATTR_SH(ex_temp_ain1_high, iio_event_adt7316,
2190 adt7316_show_ex_temp_ain1_high,
2191 adt7316_set_ex_temp_ain1_high, 0);
2192IIO_EVENT_ATTR_SH(ex_temp_ain1_low, iio_event_adt7316,
2193 adt7316_show_ex_temp_ain1_low,
2194 adt7316_set_ex_temp_ain1_low, 0);
2195IIO_EVENT_ATTR_SH(ain2_high, iio_event_adt7316,
2196 adt7316_show_ain2_high, adt7316_set_ain2_high, 0);
2197IIO_EVENT_ATTR_SH(ain2_low, iio_event_adt7316,
2198 adt7316_show_ain2_low, adt7316_set_ain2_low, 0);
2199IIO_EVENT_ATTR_SH(ain3_high, iio_event_adt7316,
2200 adt7316_show_ain3_high, adt7316_set_ain3_high, 0);
2201IIO_EVENT_ATTR_SH(ain3_low, iio_event_adt7316,
2202 adt7316_show_ain3_low, adt7316_set_ain3_low, 0);
2203IIO_EVENT_ATTR_SH(ain4_high, iio_event_adt7316,
2204 adt7316_show_ain4_high, adt7316_set_ain4_high, 0);
2205IIO_EVENT_ATTR_SH(ain4_low, iio_event_adt7316,
2206 adt7316_show_ain4_low, adt7316_set_ain4_low, 0);
2207IIO_EVENT_ATTR_SH(int_enabled, iio_event_adt7316,
2208 adt7316_show_int_enabled, adt7316_set_int_enabled, 0);
2209
2210static struct attribute *adt7316_event_attributes[] = {
2211 &iio_event_attr_int_mask.dev_attr.attr,
2212 &iio_event_attr_in_temp_high.dev_attr.attr,
2213 &iio_event_attr_in_temp_low.dev_attr.attr,
2214 &iio_event_attr_ex_temp_high.dev_attr.attr,
2215 &iio_event_attr_ex_temp_low.dev_attr.attr,
2216 &iio_event_attr_int_enabled.dev_attr.attr,
2217 NULL,
2218};
2219
2220static struct attribute_group adt7316_event_attribute_group = {
2221 .attrs = adt7316_event_attributes,
2222};
2223
2224static struct attribute *adt7516_event_attributes[] = {
2225 &iio_event_attr_int_mask.dev_attr.attr,
2226 &iio_event_attr_in_temp_high.dev_attr.attr,
2227 &iio_event_attr_in_temp_low.dev_attr.attr,
2228 &iio_event_attr_ex_temp_ain1_high.dev_attr.attr,
2229 &iio_event_attr_ex_temp_ain1_low.dev_attr.attr,
2230 &iio_event_attr_ain2_high.dev_attr.attr,
2231 &iio_event_attr_ain2_low.dev_attr.attr,
2232 &iio_event_attr_ain3_high.dev_attr.attr,
2233 &iio_event_attr_ain3_low.dev_attr.attr,
2234 &iio_event_attr_ain4_high.dev_attr.attr,
2235 &iio_event_attr_ain4_low.dev_attr.attr,
2236 &iio_event_attr_int_enabled.dev_attr.attr,
2237 NULL,
2238};
2239
2240static struct attribute_group adt7516_event_attribute_group = {
2241 .attrs = adt7516_event_attributes,
2242};
2243
2244#ifdef CONFIG_PM
2245int adt7316_disable(struct device *dev)
2246{
2247 struct iio_dev *dev_info = dev_get_drvdata(dev);
2248 struct adt7316_chip_info *chip = dev_info->dev_data;
2249
2250 return _adt7316_store_enabled(chip, 0);
2251}
2252EXPORT_SYMBOL(adt7316_disable);
2253
2254int adt7316_enable(struct device *dev)
2255{
2256 struct iio_dev *dev_info = dev_get_drvdata(dev);
2257 struct adt7316_chip_info *chip = dev_info->dev_data;
2258
2259 return _adt7316_store_enabled(chip, 1);
2260}
2261EXPORT_SYMBOL(adt7316_enable);
2262#endif
2263
2264
2265
2266
2267int __devinit adt7316_probe(struct device *dev, struct adt7316_bus *bus,
2268 const char *name)
2269{
2270 struct adt7316_chip_info *chip;
2271 unsigned short *adt7316_platform_data = dev->platform_data;
2272 int ret = 0;
2273
2274 chip = kzalloc(sizeof(struct adt7316_chip_info), GFP_KERNEL);
2275
2276 if (chip == NULL)
2277 return -ENOMEM;
2278
2279
2280 dev_set_drvdata(dev, chip);
2281
2282 chip->bus = *bus;
2283 chip->name = name;
2284
2285 if (name[4] == '3')
2286 chip->id = ID_ADT7316 + (name[6] - '6');
2287 else if (name[4] == '5')
2288 chip->id = ID_ADT7516 + (name[6] - '6');
2289 else
2290 return -ENODEV;
2291
2292 chip->ldac_pin = adt7316_platform_data[1];
2293 if (chip->ldac_pin) {
2294 chip->config3 |= ADT7316_DA_EN_VIA_DAC_LDCA;
2295 if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX)
2296 chip->config1 |= ADT7516_SEL_AIN3;
2297 }
2298 chip->int_mask = ADT7316_TEMP_INT_MASK | ADT7316_VDD_INT_MASK;
2299 if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX)
2300 chip->int_mask |= ADT7516_AIN_INT_MASK;
2301
2302 chip->indio_dev = iio_allocate_device();
2303 if (chip->indio_dev == NULL) {
2304 ret = -ENOMEM;
2305 goto error_free_chip;
2306 }
2307
2308 chip->indio_dev->dev.parent = dev;
2309 if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX) {
2310 chip->indio_dev->attrs = &adt7516_attribute_group;
2311 chip->indio_dev->event_attrs = &adt7516_event_attribute_group;
2312 } else {
2313 chip->indio_dev->attrs = &adt7316_attribute_group;
2314 chip->indio_dev->event_attrs = &adt7316_event_attribute_group;
2315 }
2316 chip->indio_dev->dev_data = (void *)chip;
2317 chip->indio_dev->driver_module = THIS_MODULE;
2318 chip->indio_dev->num_interrupt_lines = 1;
2319 chip->indio_dev->modes = INDIO_DIRECT_MODE;
2320
2321 ret = iio_device_register(chip->indio_dev);
2322 if (ret)
2323 goto error_free_dev;
2324
2325 if (chip->bus.irq > 0) {
2326 if (adt7316_platform_data[0])
2327 chip->bus.irq_flags = adt7316_platform_data[0];
2328
2329 ret = iio_register_interrupt_line(chip->bus.irq,
2330 chip->indio_dev,
2331 0,
2332 chip->bus.irq_flags,
2333 chip->name);
2334 if (ret)
2335 goto error_unreg_dev;
2336
2337
2338
2339
2340
2341
2342 iio_add_event_to_list(&iio_event_adt7316,
2343 &chip->indio_dev->interrupts[0]->ev_list);
2344
2345 INIT_WORK(&chip->thresh_work, adt7316_interrupt_bh);
2346
2347 if (chip->bus.irq_flags & IRQF_TRIGGER_HIGH)
2348 chip->config1 |= ADT7316_INT_POLARITY;
2349 }
2350
2351 ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG1, chip->config1);
2352 if (ret) {
2353 ret = -EIO;
2354 goto error_unreg_irq;
2355 }
2356
2357 ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG3, chip->config3);
2358 if (ret) {
2359 ret = -EIO;
2360 goto error_unreg_irq;
2361 }
2362
2363 dev_info(dev, "%s temperature sensor, ADC and DAC registered.\n",
2364 chip->name);
2365
2366 return 0;
2367
2368error_unreg_irq:
2369 iio_unregister_interrupt_line(chip->indio_dev, 0);
2370error_unreg_dev:
2371 iio_device_unregister(chip->indio_dev);
2372error_free_dev:
2373 iio_free_device(chip->indio_dev);
2374error_free_chip:
2375 kfree(chip);
2376
2377 return ret;
2378}
2379EXPORT_SYMBOL(adt7316_probe);
2380
2381int __devexit adt7316_remove(struct device *dev)
2382{
2383
2384 struct iio_dev *dev_info = dev_get_drvdata(dev);
2385 struct adt7316_chip_info *chip = dev_info->dev_data;
2386 struct iio_dev *indio_dev = chip->indio_dev;
2387
2388 dev_set_drvdata(dev, NULL);
2389 if (chip->bus.irq)
2390 iio_unregister_interrupt_line(indio_dev, 0);
2391 iio_device_unregister(indio_dev);
2392 iio_free_device(chip->indio_dev);
2393 kfree(chip);
2394
2395 return 0;
2396}
2397EXPORT_SYMBOL(adt7316_remove);
2398
2399MODULE_AUTHOR("Sonic Zhang <sonic.zhang@analog.com>");
2400MODULE_DESCRIPTION("Analog Devices ADT7316/7/8 and ADT7516/7/9 digital"
2401 " temperature sensor, ADC and DAC driver");
2402MODULE_LICENSE("GPL v2");
2403