2 * ADT7316 digital temperature sensor driver supporting ADT7316/7/8 ADT7516/7/9
5 * Copyright 2010 Analog Devices Inc.
7 * Licensed under the GPL-2 or later.
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>
22 #include <linux/iio/iio.h>
23 #include <linux/iio/events.h>
24 #include <linux/iio/sysfs.h>
28 * ADT7316 registers definition
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
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
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
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
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
138 * ADT7316 LDAC config
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
150 #define ADT7316_INT_MASK2_VDD 0x10
153 * ADT7316 value masks
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
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
170 #define ID_FAMILY_MASK 0xF0
171 #define ID_ADT73XX 0x0
172 #define ID_ADT75XX 0x10
175 * struct adt7316_chip_info - chip specific information
178 struct adt7316_chip_info {
179 struct adt7316_bus bus;
181 u16 int_mask; /* 0x2f */
185 u8 dac_config; /* DAC config */
186 u8 ldac_config; /* LDAC config */
187 u8 dac_bits; /* 8, 10, 12 */
192 * Logic interrupt mask for user application to enable
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)
211 * struct adt7316_chip_info - chip specific information
214 struct adt7316_limit_regs {
219 static ssize_t adt7316_show_enabled(struct device *dev,
220 struct device_attribute *attr,
223 struct iio_dev *dev_info = dev_to_iio_dev(dev);
224 struct adt7316_chip_info *chip = iio_priv(dev_info);
226 return sprintf(buf, "%d\n", !!(chip->config1 & ADT7316_EN));
229 static ssize_t _adt7316_store_enabled(struct adt7316_chip_info *chip,
236 config1 = chip->config1 | ADT7316_EN;
238 config1 = chip->config1 & ~ADT7316_EN;
240 ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG1, config1);
244 chip->config1 = config1;
250 static ssize_t adt7316_store_enabled(struct device *dev,
251 struct device_attribute *attr,
255 struct iio_dev *dev_info = dev_to_iio_dev(dev);
256 struct adt7316_chip_info *chip = iio_priv(dev_info);
264 if (_adt7316_store_enabled(chip, enable) < 0)
270 static IIO_DEVICE_ATTR(enabled, S_IRUGO | S_IWUSR,
271 adt7316_show_enabled,
272 adt7316_store_enabled,
275 static ssize_t adt7316_show_select_ex_temp(struct device *dev,
276 struct device_attribute *attr,
279 struct iio_dev *dev_info = dev_to_iio_dev(dev);
280 struct adt7316_chip_info *chip = iio_priv(dev_info);
282 if ((chip->id & ID_FAMILY_MASK) != ID_ADT75XX)
285 return sprintf(buf, "%d\n", !!(chip->config1 & ADT7516_SEL_EX_TEMP));
288 static ssize_t adt7316_store_select_ex_temp(struct device *dev,
289 struct device_attribute *attr,
293 struct iio_dev *dev_info = dev_to_iio_dev(dev);
294 struct adt7316_chip_info *chip = iio_priv(dev_info);
298 if ((chip->id & ID_FAMILY_MASK) != ID_ADT75XX)
301 config1 = chip->config1 & (~ADT7516_SEL_EX_TEMP);
303 config1 |= ADT7516_SEL_EX_TEMP;
305 ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG1, config1);
309 chip->config1 = config1;
314 static IIO_DEVICE_ATTR(select_ex_temp, S_IRUGO | S_IWUSR,
315 adt7316_show_select_ex_temp,
316 adt7316_store_select_ex_temp,
319 static ssize_t adt7316_show_mode(struct device *dev,
320 struct device_attribute *attr,
323 struct iio_dev *dev_info = dev_to_iio_dev(dev);
324 struct adt7316_chip_info *chip = iio_priv(dev_info);
326 if (chip->config2 & ADT7316_AD_SINGLE_CH_MODE)
327 return sprintf(buf, "single_channel\n");
329 return sprintf(buf, "round_robin\n");
332 static ssize_t adt7316_store_mode(struct device *dev,
333 struct device_attribute *attr,
337 struct iio_dev *dev_info = dev_to_iio_dev(dev);
338 struct adt7316_chip_info *chip = iio_priv(dev_info);
342 config2 = chip->config2 & (~ADT7316_AD_SINGLE_CH_MODE);
343 if (!memcmp(buf, "single_channel", 14))
344 config2 |= ADT7316_AD_SINGLE_CH_MODE;
346 ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG2, config2);
350 chip->config2 = config2;
355 static IIO_DEVICE_ATTR(mode, S_IRUGO | S_IWUSR,
360 static ssize_t adt7316_show_all_modes(struct device *dev,
361 struct device_attribute *attr,
364 return sprintf(buf, "single_channel\nround_robin\n");
367 static IIO_DEVICE_ATTR(all_modes, S_IRUGO, adt7316_show_all_modes, NULL, 0);
369 static ssize_t adt7316_show_ad_channel(struct device *dev,
370 struct device_attribute *attr,
373 struct iio_dev *dev_info = dev_to_iio_dev(dev);
374 struct adt7316_chip_info *chip = iio_priv(dev_info);
376 if (!(chip->config2 & ADT7316_AD_SINGLE_CH_MODE))
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");
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");
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");
399 return sprintf(buf, "N/A\n");
400 case ADT7516_AD_SINGLE_CH_AIN4:
401 return sprintf(buf, "5 - AIN4\n");
403 return sprintf(buf, "N/A\n");
407 static ssize_t adt7316_store_ad_channel(struct device *dev,
408 struct device_attribute *attr,
412 struct iio_dev *dev_info = dev_to_iio_dev(dev);
413 struct adt7316_chip_info *chip = iio_priv(dev_info);
418 if (!(chip->config2 & ADT7316_AD_SINGLE_CH_MODE))
421 ret = kstrtou8(buf, 10, &data);
425 if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX) {
429 config2 = chip->config2 & (~ADT7516_AD_SINGLE_CH_MASK);
434 config2 = chip->config2 & (~ADT7316_AD_SINGLE_CH_MASK);
440 ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG2, config2);
444 chip->config2 = config2;
449 static IIO_DEVICE_ATTR(ad_channel, S_IRUGO | S_IWUSR,
450 adt7316_show_ad_channel,
451 adt7316_store_ad_channel,
454 static ssize_t adt7316_show_all_ad_channels(struct device *dev,
455 struct device_attribute *attr,
458 struct iio_dev *dev_info = dev_to_iio_dev(dev);
459 struct adt7316_chip_info *chip = iio_priv(dev_info);
461 if (!(chip->config2 & ADT7316_AD_SINGLE_CH_MODE))
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");
469 return sprintf(buf, "0 - VDD\n1 - Internal Temperature\n"
470 "2 - External Temperature\n");
473 static IIO_DEVICE_ATTR(all_ad_channels, S_IRUGO,
474 adt7316_show_all_ad_channels, NULL, 0);
476 static ssize_t adt7316_show_disable_averaging(struct device *dev,
477 struct device_attribute *attr,
480 struct iio_dev *dev_info = dev_to_iio_dev(dev);
481 struct adt7316_chip_info *chip = iio_priv(dev_info);
483 return sprintf(buf, "%d\n",
484 !!(chip->config2 & ADT7316_DISABLE_AVERAGING));
487 static ssize_t adt7316_store_disable_averaging(struct device *dev,
488 struct device_attribute *attr,
492 struct iio_dev *dev_info = dev_to_iio_dev(dev);
493 struct adt7316_chip_info *chip = iio_priv(dev_info);
497 config2 = chip->config2 & (~ADT7316_DISABLE_AVERAGING);
499 config2 |= ADT7316_DISABLE_AVERAGING;
501 ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG2, config2);
505 chip->config2 = config2;
510 static IIO_DEVICE_ATTR(disable_averaging, S_IRUGO | S_IWUSR,
511 adt7316_show_disable_averaging,
512 adt7316_store_disable_averaging,
515 static ssize_t adt7316_show_enable_smbus_timeout(struct device *dev,
516 struct device_attribute *attr,
519 struct iio_dev *dev_info = dev_to_iio_dev(dev);
520 struct adt7316_chip_info *chip = iio_priv(dev_info);
522 return sprintf(buf, "%d\n",
523 !!(chip->config2 & ADT7316_EN_SMBUS_TIMEOUT));
526 static ssize_t adt7316_store_enable_smbus_timeout(struct device *dev,
527 struct device_attribute *attr,
531 struct iio_dev *dev_info = dev_to_iio_dev(dev);
532 struct adt7316_chip_info *chip = iio_priv(dev_info);
536 config2 = chip->config2 & (~ADT7316_EN_SMBUS_TIMEOUT);
538 config2 |= ADT7316_EN_SMBUS_TIMEOUT;
540 ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG2, config2);
544 chip->config2 = config2;
549 static IIO_DEVICE_ATTR(enable_smbus_timeout, S_IRUGO | S_IWUSR,
550 adt7316_show_enable_smbus_timeout,
551 adt7316_store_enable_smbus_timeout,
554 static ssize_t adt7316_show_powerdown(struct device *dev,
555 struct device_attribute *attr,
558 struct iio_dev *dev_info = dev_to_iio_dev(dev);
559 struct adt7316_chip_info *chip = iio_priv(dev_info);
561 return sprintf(buf, "%d\n", !!(chip->config1 & ADT7316_PD));
564 static ssize_t adt7316_store_powerdown(struct device *dev,
565 struct device_attribute *attr,
569 struct iio_dev *dev_info = dev_to_iio_dev(dev);
570 struct adt7316_chip_info *chip = iio_priv(dev_info);
574 config1 = chip->config1 & (~ADT7316_PD);
576 config1 |= ADT7316_PD;
578 ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG1, config1);
582 chip->config1 = config1;
587 static IIO_DEVICE_ATTR(powerdown, S_IRUGO | S_IWUSR,
588 adt7316_show_powerdown,
589 adt7316_store_powerdown,
592 static ssize_t adt7316_show_fast_ad_clock(struct device *dev,
593 struct device_attribute *attr,
596 struct iio_dev *dev_info = dev_to_iio_dev(dev);
597 struct adt7316_chip_info *chip = iio_priv(dev_info);
599 return sprintf(buf, "%d\n", !!(chip->config3 & ADT7316_ADCLK_22_5));
602 static ssize_t adt7316_store_fast_ad_clock(struct device *dev,
603 struct device_attribute *attr,
607 struct iio_dev *dev_info = dev_to_iio_dev(dev);
608 struct adt7316_chip_info *chip = iio_priv(dev_info);
612 config3 = chip->config3 & (~ADT7316_ADCLK_22_5);
614 config3 |= ADT7316_ADCLK_22_5;
616 ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG3, config3);
620 chip->config3 = config3;
625 static IIO_DEVICE_ATTR(fast_ad_clock, S_IRUGO | S_IWUSR,
626 adt7316_show_fast_ad_clock,
627 adt7316_store_fast_ad_clock,
630 static ssize_t adt7316_show_da_high_resolution(struct device *dev,
631 struct device_attribute *attr,
634 struct iio_dev *dev_info = dev_to_iio_dev(dev);
635 struct adt7316_chip_info *chip = iio_priv(dev_info);
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");
644 return sprintf(buf, "0 (8 bits)\n");
647 static ssize_t adt7316_store_da_high_resolution(struct device *dev,
648 struct device_attribute *attr,
652 struct iio_dev *dev_info = dev_to_iio_dev(dev);
653 struct adt7316_chip_info *chip = iio_priv(dev_info);
660 config3 = chip->config3 | ADT7316_DA_HIGH_RESOLUTION;
661 if (chip->id == ID_ADT7316 || chip->id == ID_ADT7516)
663 else if (chip->id == ID_ADT7317 || chip->id == ID_ADT7517)
666 config3 = chip->config3 & (~ADT7316_DA_HIGH_RESOLUTION);
668 ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG3, config3);
672 chip->config3 = config3;
677 static IIO_DEVICE_ATTR(da_high_resolution, S_IRUGO | S_IWUSR,
678 adt7316_show_da_high_resolution,
679 adt7316_store_da_high_resolution,
682 static ssize_t adt7316_show_AIN_internal_Vref(struct device *dev,
683 struct device_attribute *attr,
686 struct iio_dev *dev_info = dev_to_iio_dev(dev);
687 struct adt7316_chip_info *chip = iio_priv(dev_info);
689 if ((chip->id & ID_FAMILY_MASK) != ID_ADT75XX)
692 return sprintf(buf, "%d\n",
693 !!(chip->config3 & ADT7516_AIN_IN_VREF));
696 static ssize_t adt7316_store_AIN_internal_Vref(struct device *dev,
697 struct device_attribute *attr,
701 struct iio_dev *dev_info = dev_to_iio_dev(dev);
702 struct adt7316_chip_info *chip = iio_priv(dev_info);
706 if ((chip->id & ID_FAMILY_MASK) != ID_ADT75XX)
710 config3 = chip->config3 & (~ADT7516_AIN_IN_VREF);
712 config3 = chip->config3 | ADT7516_AIN_IN_VREF;
714 ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG3, config3);
718 chip->config3 = config3;
723 static IIO_DEVICE_ATTR(AIN_internal_Vref, S_IRUGO | S_IWUSR,
724 adt7316_show_AIN_internal_Vref,
725 adt7316_store_AIN_internal_Vref,
729 static ssize_t adt7316_show_enable_prop_DACA(struct device *dev,
730 struct device_attribute *attr,
733 struct iio_dev *dev_info = dev_to_iio_dev(dev);
734 struct adt7316_chip_info *chip = iio_priv(dev_info);
736 return sprintf(buf, "%d\n",
737 !!(chip->config3 & ADT7316_EN_IN_TEMP_PROP_DACA));
740 static ssize_t adt7316_store_enable_prop_DACA(struct device *dev,
741 struct device_attribute *attr,
745 struct iio_dev *dev_info = dev_to_iio_dev(dev);
746 struct adt7316_chip_info *chip = iio_priv(dev_info);
750 config3 = chip->config3 & (~ADT7316_EN_IN_TEMP_PROP_DACA);
752 config3 |= ADT7316_EN_IN_TEMP_PROP_DACA;
754 ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG3, config3);
758 chip->config3 = config3;
763 static IIO_DEVICE_ATTR(enable_proportion_DACA, S_IRUGO | S_IWUSR,
764 adt7316_show_enable_prop_DACA,
765 adt7316_store_enable_prop_DACA,
768 static ssize_t adt7316_show_enable_prop_DACB(struct device *dev,
769 struct device_attribute *attr,
772 struct iio_dev *dev_info = dev_to_iio_dev(dev);
773 struct adt7316_chip_info *chip = iio_priv(dev_info);
775 return sprintf(buf, "%d\n",
776 !!(chip->config3 & ADT7316_EN_EX_TEMP_PROP_DACB));
779 static ssize_t adt7316_store_enable_prop_DACB(struct device *dev,
780 struct device_attribute *attr,
784 struct iio_dev *dev_info = dev_to_iio_dev(dev);
785 struct adt7316_chip_info *chip = iio_priv(dev_info);
789 config3 = chip->config3 & (~ADT7316_EN_EX_TEMP_PROP_DACB);
791 config3 |= ADT7316_EN_EX_TEMP_PROP_DACB;
793 ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG3, config3);
797 chip->config3 = config3;
802 static IIO_DEVICE_ATTR(enable_proportion_DACB, S_IRUGO | S_IWUSR,
803 adt7316_show_enable_prop_DACB,
804 adt7316_store_enable_prop_DACB,
807 static ssize_t adt7316_show_DAC_2Vref_ch_mask(struct device *dev,
808 struct device_attribute *attr,
811 struct iio_dev *dev_info = dev_to_iio_dev(dev);
812 struct adt7316_chip_info *chip = iio_priv(dev_info);
814 return sprintf(buf, "0x%x\n",
815 chip->dac_config & ADT7316_DA_2VREF_CH_MASK);
818 static ssize_t adt7316_store_DAC_2Vref_ch_mask(struct device *dev,
819 struct device_attribute *attr,
823 struct iio_dev *dev_info = dev_to_iio_dev(dev);
824 struct adt7316_chip_info *chip = iio_priv(dev_info);
829 ret = kstrtou8(buf, 16, &data);
830 if (ret || data > ADT7316_DA_2VREF_CH_MASK)
833 dac_config = chip->dac_config & (~ADT7316_DA_2VREF_CH_MASK);
836 ret = chip->bus.write(chip->bus.client, ADT7316_DAC_CONFIG, dac_config);
840 chip->dac_config = dac_config;
845 static 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,
850 static ssize_t adt7316_show_DAC_update_mode(struct device *dev,
851 struct device_attribute *attr,
854 struct iio_dev *dev_info = dev_to_iio_dev(dev);
855 struct adt7316_chip_info *chip = iio_priv(dev_info);
857 if (!(chip->config3 & ADT7316_DA_EN_VIA_DAC_LDCA))
858 return sprintf(buf, "manual\n");
860 switch (chip->dac_config & ADT7316_DA_EN_MODE_MASK) {
861 case ADT7316_DA_EN_MODE_SINGLE:
863 "0 - auto at any MSB DAC writing\n");
864 case ADT7316_DA_EN_MODE_AB_CD:
866 "1 - auto at MSB DAC AB and CD writing\n");
867 case ADT7316_DA_EN_MODE_ABCD:
869 "2 - auto at MSB DAC ABCD writing\n");
870 default: /* ADT7316_DA_EN_MODE_LDAC */
871 return sprintf(buf, "3 - manual\n");
875 static ssize_t adt7316_store_DAC_update_mode(struct device *dev,
876 struct device_attribute *attr,
880 struct iio_dev *dev_info = dev_to_iio_dev(dev);
881 struct adt7316_chip_info *chip = iio_priv(dev_info);
886 if (!(chip->config3 & ADT7316_DA_EN_VIA_DAC_LDCA))
889 ret = kstrtou8(buf, 10, &data);
890 if (ret || data > ADT7316_DA_EN_MODE_MASK)
893 dac_config = chip->dac_config & (~ADT7316_DA_EN_MODE_MASK);
896 ret = chip->bus.write(chip->bus.client, ADT7316_DAC_CONFIG, dac_config);
900 chip->dac_config = dac_config;
905 static IIO_DEVICE_ATTR(DAC_update_mode, S_IRUGO | S_IWUSR,
906 adt7316_show_DAC_update_mode,
907 adt7316_store_DAC_update_mode,
910 static ssize_t adt7316_show_all_DAC_update_modes(struct device *dev,
911 struct device_attribute *attr,
914 struct iio_dev *dev_info = dev_to_iio_dev(dev);
915 struct adt7316_chip_info *chip = iio_priv(dev_info);
917 if (chip->config3 & ADT7316_DA_EN_VIA_DAC_LDCA)
918 return sprintf(buf, "0 - auto at any MSB DAC writing\n"
919 "1 - auto at MSB DAC AB and CD writing\n"
920 "2 - auto at MSB DAC ABCD writing\n"
923 return sprintf(buf, "manual\n");
926 static IIO_DEVICE_ATTR(all_DAC_update_modes, S_IRUGO,
927 adt7316_show_all_DAC_update_modes, NULL, 0);
930 static ssize_t adt7316_store_update_DAC(struct device *dev,
931 struct device_attribute *attr,
935 struct iio_dev *dev_info = dev_to_iio_dev(dev);
936 struct adt7316_chip_info *chip = iio_priv(dev_info);
941 if (chip->config3 & ADT7316_DA_EN_VIA_DAC_LDCA) {
942 if ((chip->dac_config & ADT7316_DA_EN_MODE_MASK) !=
943 ADT7316_DA_EN_MODE_LDAC)
946 ret = kstrtou8(buf, 16, &data);
947 if (ret || data > ADT7316_LDAC_EN_DA_MASK)
950 ldac_config = chip->ldac_config & (~ADT7316_LDAC_EN_DA_MASK);
953 ret = chip->bus.write(chip->bus.client, ADT7316_LDAC_CONFIG,
958 gpio_set_value(chip->ldac_pin, 0);
959 gpio_set_value(chip->ldac_pin, 1);
965 static IIO_DEVICE_ATTR(update_DAC, S_IRUGO | S_IWUSR,
967 adt7316_store_update_DAC,
970 static ssize_t adt7316_show_DA_AB_Vref_bypass(struct device *dev,
971 struct device_attribute *attr,
974 struct iio_dev *dev_info = dev_to_iio_dev(dev);
975 struct adt7316_chip_info *chip = iio_priv(dev_info);
977 if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX)
980 return sprintf(buf, "%d\n",
981 !!(chip->dac_config & ADT7316_VREF_BYPASS_DAC_AB));
984 static ssize_t adt7316_store_DA_AB_Vref_bypass(struct device *dev,
985 struct device_attribute *attr,
989 struct iio_dev *dev_info = dev_to_iio_dev(dev);
990 struct adt7316_chip_info *chip = iio_priv(dev_info);
994 if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX)
997 dac_config = chip->dac_config & (~ADT7316_VREF_BYPASS_DAC_AB);
999 dac_config |= ADT7316_VREF_BYPASS_DAC_AB;
1001 ret = chip->bus.write(chip->bus.client, ADT7316_DAC_CONFIG, dac_config);
1005 chip->dac_config = dac_config;
1010 static IIO_DEVICE_ATTR(DA_AB_Vref_bypass, S_IRUGO | S_IWUSR,
1011 adt7316_show_DA_AB_Vref_bypass,
1012 adt7316_store_DA_AB_Vref_bypass,
1015 static ssize_t adt7316_show_DA_CD_Vref_bypass(struct device *dev,
1016 struct device_attribute *attr,
1019 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1020 struct adt7316_chip_info *chip = iio_priv(dev_info);
1022 if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX)
1025 return sprintf(buf, "%d\n",
1026 !!(chip->dac_config & ADT7316_VREF_BYPASS_DAC_CD));
1029 static ssize_t adt7316_store_DA_CD_Vref_bypass(struct device *dev,
1030 struct device_attribute *attr,
1034 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1035 struct adt7316_chip_info *chip = iio_priv(dev_info);
1039 if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX)
1042 dac_config = chip->dac_config & (~ADT7316_VREF_BYPASS_DAC_CD);
1044 dac_config |= ADT7316_VREF_BYPASS_DAC_CD;
1046 ret = chip->bus.write(chip->bus.client, ADT7316_DAC_CONFIG, dac_config);
1050 chip->dac_config = dac_config;
1055 static IIO_DEVICE_ATTR(DA_CD_Vref_bypass, S_IRUGO | S_IWUSR,
1056 adt7316_show_DA_CD_Vref_bypass,
1057 adt7316_store_DA_CD_Vref_bypass,
1060 static ssize_t adt7316_show_DAC_internal_Vref(struct device *dev,
1061 struct device_attribute *attr,
1064 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1065 struct adt7316_chip_info *chip = iio_priv(dev_info);
1067 if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX)
1068 return sprintf(buf, "0x%x\n",
1069 (chip->dac_config & ADT7516_DAC_IN_VREF_MASK) >>
1070 ADT7516_DAC_IN_VREF_OFFSET);
1072 return sprintf(buf, "%d\n",
1073 !!(chip->dac_config & ADT7316_DAC_IN_VREF));
1076 static ssize_t adt7316_store_DAC_internal_Vref(struct device *dev,
1077 struct device_attribute *attr,
1081 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1082 struct adt7316_chip_info *chip = iio_priv(dev_info);
1087 if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX) {
1088 ret = kstrtou8(buf, 16, &data);
1089 if (ret || data > 3)
1092 ldac_config = chip->ldac_config & (~ADT7516_DAC_IN_VREF_MASK);
1094 ldac_config |= ADT7516_DAC_AB_IN_VREF;
1095 else if (data & 0x2)
1096 ldac_config |= ADT7516_DAC_CD_IN_VREF;
1098 ret = kstrtou8(buf, 16, &data);
1102 ldac_config = chip->ldac_config & (~ADT7316_DAC_IN_VREF);
1104 ldac_config = chip->ldac_config | ADT7316_DAC_IN_VREF;
1107 ret = chip->bus.write(chip->bus.client, ADT7316_LDAC_CONFIG,
1112 chip->ldac_config = ldac_config;
1117 static IIO_DEVICE_ATTR(DAC_internal_Vref, S_IRUGO | S_IWUSR,
1118 adt7316_show_DAC_internal_Vref,
1119 adt7316_store_DAC_internal_Vref,
1122 static ssize_t adt7316_show_ad(struct adt7316_chip_info *chip,
1123 int channel, char *buf)
1130 if ((chip->config2 & ADT7316_AD_SINGLE_CH_MODE) &&
1131 channel != (chip->config2 & ADT7516_AD_SINGLE_CH_MASK))
1135 case ADT7316_AD_SINGLE_CH_IN:
1136 ret = chip->bus.read(chip->bus.client,
1137 ADT7316_LSB_IN_TEMP_VDD, &lsb);
1141 ret = chip->bus.read(chip->bus.client,
1142 ADT7316_AD_MSB_DATA_BASE + channel, &msb);
1146 data = msb << ADT7316_T_VALUE_FLOAT_OFFSET;
1147 data |= lsb & ADT7316_LSB_IN_TEMP_MASK;
1149 case ADT7316_AD_SINGLE_CH_VDD:
1150 ret = chip->bus.read(chip->bus.client,
1151 ADT7316_LSB_IN_TEMP_VDD, &lsb);
1155 ret = chip->bus.read(chip->bus.client,
1157 ADT7316_AD_MSB_DATA_BASE + channel, &msb);
1161 data = msb << ADT7316_T_VALUE_FLOAT_OFFSET;
1162 data |= (lsb & ADT7316_LSB_VDD_MASK) >> ADT7316_LSB_VDD_OFFSET;
1163 return sprintf(buf, "%d\n", data);
1164 default: /* ex_temp and ain */
1165 ret = chip->bus.read(chip->bus.client,
1166 ADT7316_LSB_EX_TEMP_AIN, &lsb);
1170 ret = chip->bus.read(chip->bus.client,
1171 ADT7316_AD_MSB_DATA_BASE + channel, &msb);
1175 data = msb << ADT7316_T_VALUE_FLOAT_OFFSET;
1176 data |= lsb & (ADT7316_LSB_EX_TEMP_MASK <<
1177 (ADT7516_LSB_AIN_SHIFT * (channel -
1178 (ADT7316_MSB_EX_TEMP - ADT7316_AD_MSB_DATA_BASE))));
1180 if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX)
1181 return sprintf(buf, "%d\n", data);
1186 if (data & ADT7316_T_VALUE_SIGN) {
1187 /* convert supplement to positive value */
1188 data = (ADT7316_T_VALUE_SIGN << 1) - data;
1192 return sprintf(buf, "%c%d.%.2d\n", sign,
1193 (data >> ADT7316_T_VALUE_FLOAT_OFFSET),
1194 (data & ADT7316_T_VALUE_FLOAT_MASK) * 25);
1197 static ssize_t adt7316_show_VDD(struct device *dev,
1198 struct device_attribute *attr,
1201 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1202 struct adt7316_chip_info *chip = iio_priv(dev_info);
1204 return adt7316_show_ad(chip, ADT7316_AD_SINGLE_CH_VDD, buf);
1206 static IIO_DEVICE_ATTR(VDD, S_IRUGO, adt7316_show_VDD, NULL, 0);
1208 static ssize_t adt7316_show_in_temp(struct device *dev,
1209 struct device_attribute *attr,
1212 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1213 struct adt7316_chip_info *chip = iio_priv(dev_info);
1215 return adt7316_show_ad(chip, ADT7316_AD_SINGLE_CH_IN, buf);
1218 static IIO_DEVICE_ATTR(in_temp, S_IRUGO, adt7316_show_in_temp, NULL, 0);
1220 static ssize_t adt7316_show_ex_temp_AIN1(struct device *dev,
1221 struct device_attribute *attr,
1224 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1225 struct adt7316_chip_info *chip = iio_priv(dev_info);
1227 return adt7316_show_ad(chip, ADT7316_AD_SINGLE_CH_EX, buf);
1230 static IIO_DEVICE_ATTR(ex_temp_AIN1, S_IRUGO, adt7316_show_ex_temp_AIN1,
1232 static IIO_DEVICE_ATTR(ex_temp, S_IRUGO, adt7316_show_ex_temp_AIN1, NULL, 0);
1234 static ssize_t adt7316_show_AIN2(struct device *dev,
1235 struct device_attribute *attr,
1238 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1239 struct adt7316_chip_info *chip = iio_priv(dev_info);
1241 return adt7316_show_ad(chip, ADT7516_AD_SINGLE_CH_AIN2, buf);
1243 static IIO_DEVICE_ATTR(AIN2, S_IRUGO, adt7316_show_AIN2, NULL, 0);
1245 static ssize_t adt7316_show_AIN3(struct device *dev,
1246 struct device_attribute *attr,
1249 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1250 struct adt7316_chip_info *chip = iio_priv(dev_info);
1252 return adt7316_show_ad(chip, ADT7516_AD_SINGLE_CH_AIN3, buf);
1254 static IIO_DEVICE_ATTR(AIN3, S_IRUGO, adt7316_show_AIN3, NULL, 0);
1256 static ssize_t adt7316_show_AIN4(struct device *dev,
1257 struct device_attribute *attr,
1260 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1261 struct adt7316_chip_info *chip = iio_priv(dev_info);
1263 return adt7316_show_ad(chip, ADT7516_AD_SINGLE_CH_AIN4, buf);
1265 static IIO_DEVICE_ATTR(AIN4, S_IRUGO, adt7316_show_AIN4, NULL, 0);
1267 static ssize_t adt7316_show_temp_offset(struct adt7316_chip_info *chip,
1268 int offset_addr, char *buf)
1274 ret = chip->bus.read(chip->bus.client, offset_addr, &val);
1282 return sprintf(buf, "%d\n", data);
1285 static ssize_t adt7316_store_temp_offset(struct adt7316_chip_info *chip,
1286 int offset_addr, const char *buf, size_t len)
1292 ret = kstrtoint(buf, 10, &data);
1293 if (ret || data > 127 || data < -128)
1301 ret = chip->bus.write(chip->bus.client, offset_addr, val);
1308 static ssize_t adt7316_show_in_temp_offset(struct device *dev,
1309 struct device_attribute *attr,
1312 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1313 struct adt7316_chip_info *chip = iio_priv(dev_info);
1315 return adt7316_show_temp_offset(chip, ADT7316_IN_TEMP_OFFSET, buf);
1318 static ssize_t adt7316_store_in_temp_offset(struct device *dev,
1319 struct device_attribute *attr,
1323 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1324 struct adt7316_chip_info *chip = iio_priv(dev_info);
1326 return adt7316_store_temp_offset(chip, ADT7316_IN_TEMP_OFFSET, buf,
1330 static IIO_DEVICE_ATTR(in_temp_offset, S_IRUGO | S_IWUSR,
1331 adt7316_show_in_temp_offset,
1332 adt7316_store_in_temp_offset, 0);
1334 static ssize_t adt7316_show_ex_temp_offset(struct device *dev,
1335 struct device_attribute *attr,
1338 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1339 struct adt7316_chip_info *chip = iio_priv(dev_info);
1341 return adt7316_show_temp_offset(chip, ADT7316_EX_TEMP_OFFSET, buf);
1344 static ssize_t adt7316_store_ex_temp_offset(struct device *dev,
1345 struct device_attribute *attr,
1349 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1350 struct adt7316_chip_info *chip = iio_priv(dev_info);
1352 return adt7316_store_temp_offset(chip, ADT7316_EX_TEMP_OFFSET, buf,
1356 static IIO_DEVICE_ATTR(ex_temp_offset, S_IRUGO | S_IWUSR,
1357 adt7316_show_ex_temp_offset,
1358 adt7316_store_ex_temp_offset, 0);
1360 static ssize_t adt7316_show_in_analog_temp_offset(struct device *dev,
1361 struct device_attribute *attr,
1364 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1365 struct adt7316_chip_info *chip = iio_priv(dev_info);
1367 return adt7316_show_temp_offset(chip,
1368 ADT7316_IN_ANALOG_TEMP_OFFSET, buf);
1371 static ssize_t adt7316_store_in_analog_temp_offset(struct device *dev,
1372 struct device_attribute *attr,
1376 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1377 struct adt7316_chip_info *chip = iio_priv(dev_info);
1379 return adt7316_store_temp_offset(chip,
1380 ADT7316_IN_ANALOG_TEMP_OFFSET, buf, len);
1383 static IIO_DEVICE_ATTR(in_analog_temp_offset, S_IRUGO | S_IWUSR,
1384 adt7316_show_in_analog_temp_offset,
1385 adt7316_store_in_analog_temp_offset, 0);
1387 static ssize_t adt7316_show_ex_analog_temp_offset(struct device *dev,
1388 struct device_attribute *attr,
1391 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1392 struct adt7316_chip_info *chip = iio_priv(dev_info);
1394 return adt7316_show_temp_offset(chip,
1395 ADT7316_EX_ANALOG_TEMP_OFFSET, buf);
1398 static ssize_t adt7316_store_ex_analog_temp_offset(struct device *dev,
1399 struct device_attribute *attr,
1403 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1404 struct adt7316_chip_info *chip = iio_priv(dev_info);
1406 return adt7316_store_temp_offset(chip,
1407 ADT7316_EX_ANALOG_TEMP_OFFSET, buf, len);
1410 static IIO_DEVICE_ATTR(ex_analog_temp_offset, S_IRUGO | S_IWUSR,
1411 adt7316_show_ex_analog_temp_offset,
1412 adt7316_store_ex_analog_temp_offset, 0);
1414 static ssize_t adt7316_show_DAC(struct adt7316_chip_info *chip,
1415 int channel, char *buf)
1418 u8 msb, lsb, offset;
1421 if (channel >= ADT7316_DA_MSB_DATA_REGS ||
1423 (chip->config3 & ADT7316_EN_IN_TEMP_PROP_DACA)) ||
1425 (chip->config3 & ADT7316_EN_EX_TEMP_PROP_DACB)))
1428 offset = chip->dac_bits - 8;
1430 if (chip->dac_bits > 8) {
1431 ret = chip->bus.read(chip->bus.client,
1432 ADT7316_DA_DATA_BASE + channel * 2, &lsb);
1437 ret = chip->bus.read(chip->bus.client,
1438 ADT7316_DA_DATA_BASE + 1 + channel * 2, &msb);
1442 data = (msb << offset) + (lsb & ((1 << offset) - 1));
1444 return sprintf(buf, "%d\n", data);
1447 static ssize_t adt7316_store_DAC(struct adt7316_chip_info *chip,
1448 int channel, const char *buf, size_t len)
1450 u8 msb, lsb, offset;
1454 if (channel >= ADT7316_DA_MSB_DATA_REGS ||
1456 (chip->config3 & ADT7316_EN_IN_TEMP_PROP_DACA)) ||
1458 (chip->config3 & ADT7316_EN_EX_TEMP_PROP_DACB)))
1461 offset = chip->dac_bits - 8;
1463 ret = kstrtou16(buf, 10, &data);
1464 if (ret || data >= (1 << chip->dac_bits))
1467 if (chip->dac_bits > 8) {
1468 lsb = data & (1 << offset);
1469 ret = chip->bus.write(chip->bus.client,
1470 ADT7316_DA_DATA_BASE + channel * 2, lsb);
1475 msb = data >> offset;
1476 ret = chip->bus.write(chip->bus.client,
1477 ADT7316_DA_DATA_BASE + 1 + channel * 2, msb);
1484 static ssize_t adt7316_show_DAC_A(struct device *dev,
1485 struct device_attribute *attr,
1488 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1489 struct adt7316_chip_info *chip = iio_priv(dev_info);
1491 return adt7316_show_DAC(chip, 0, buf);
1494 static ssize_t adt7316_store_DAC_A(struct device *dev,
1495 struct device_attribute *attr,
1499 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1500 struct adt7316_chip_info *chip = iio_priv(dev_info);
1502 return adt7316_store_DAC(chip, 0, buf, len);
1505 static IIO_DEVICE_ATTR(DAC_A, S_IRUGO | S_IWUSR, adt7316_show_DAC_A,
1506 adt7316_store_DAC_A, 0);
1508 static ssize_t adt7316_show_DAC_B(struct device *dev,
1509 struct device_attribute *attr,
1512 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1513 struct adt7316_chip_info *chip = iio_priv(dev_info);
1515 return adt7316_show_DAC(chip, 1, buf);
1518 static ssize_t adt7316_store_DAC_B(struct device *dev,
1519 struct device_attribute *attr,
1523 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1524 struct adt7316_chip_info *chip = iio_priv(dev_info);
1526 return adt7316_store_DAC(chip, 1, buf, len);
1529 static IIO_DEVICE_ATTR(DAC_B, S_IRUGO | S_IWUSR, adt7316_show_DAC_B,
1530 adt7316_store_DAC_B, 0);
1532 static ssize_t adt7316_show_DAC_C(struct device *dev,
1533 struct device_attribute *attr,
1536 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1537 struct adt7316_chip_info *chip = iio_priv(dev_info);
1539 return adt7316_show_DAC(chip, 2, buf);
1542 static ssize_t adt7316_store_DAC_C(struct device *dev,
1543 struct device_attribute *attr,
1547 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1548 struct adt7316_chip_info *chip = iio_priv(dev_info);
1550 return adt7316_store_DAC(chip, 2, buf, len);
1553 static IIO_DEVICE_ATTR(DAC_C, S_IRUGO | S_IWUSR, adt7316_show_DAC_C,
1554 adt7316_store_DAC_C, 0);
1556 static ssize_t adt7316_show_DAC_D(struct device *dev,
1557 struct device_attribute *attr,
1560 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1561 struct adt7316_chip_info *chip = iio_priv(dev_info);
1563 return adt7316_show_DAC(chip, 3, buf);
1566 static ssize_t adt7316_store_DAC_D(struct device *dev,
1567 struct device_attribute *attr,
1571 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1572 struct adt7316_chip_info *chip = iio_priv(dev_info);
1574 return adt7316_store_DAC(chip, 3, buf, len);
1577 static IIO_DEVICE_ATTR(DAC_D, S_IRUGO | S_IWUSR, adt7316_show_DAC_D,
1578 adt7316_store_DAC_D, 0);
1580 static ssize_t adt7316_show_device_id(struct device *dev,
1581 struct device_attribute *attr,
1584 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1585 struct adt7316_chip_info *chip = iio_priv(dev_info);
1589 ret = chip->bus.read(chip->bus.client, ADT7316_DEVICE_ID, &id);
1593 return sprintf(buf, "%d\n", id);
1596 static IIO_DEVICE_ATTR(device_id, S_IRUGO, adt7316_show_device_id, NULL, 0);
1598 static ssize_t adt7316_show_manufactorer_id(struct device *dev,
1599 struct device_attribute *attr,
1602 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1603 struct adt7316_chip_info *chip = iio_priv(dev_info);
1607 ret = chip->bus.read(chip->bus.client, ADT7316_MANUFACTURE_ID, &id);
1611 return sprintf(buf, "%d\n", id);
1614 static IIO_DEVICE_ATTR(manufactorer_id, S_IRUGO,
1615 adt7316_show_manufactorer_id, NULL, 0);
1617 static ssize_t adt7316_show_device_rev(struct device *dev,
1618 struct device_attribute *attr,
1621 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1622 struct adt7316_chip_info *chip = iio_priv(dev_info);
1626 ret = chip->bus.read(chip->bus.client, ADT7316_DEVICE_REV, &rev);
1630 return sprintf(buf, "%d\n", rev);
1633 static IIO_DEVICE_ATTR(device_rev, S_IRUGO, adt7316_show_device_rev, NULL, 0);
1635 static ssize_t adt7316_show_bus_type(struct device *dev,
1636 struct device_attribute *attr,
1639 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1640 struct adt7316_chip_info *chip = iio_priv(dev_info);
1644 ret = chip->bus.read(chip->bus.client, ADT7316_SPI_LOCK_STAT, &stat);
1649 return sprintf(buf, "spi\n");
1651 return sprintf(buf, "i2c\n");
1654 static IIO_DEVICE_ATTR(bus_type, S_IRUGO, adt7316_show_bus_type, NULL, 0);
1656 static struct attribute *adt7316_attributes[] = {
1657 &iio_dev_attr_all_modes.dev_attr.attr,
1658 &iio_dev_attr_mode.dev_attr.attr,
1659 &iio_dev_attr_enabled.dev_attr.attr,
1660 &iio_dev_attr_ad_channel.dev_attr.attr,
1661 &iio_dev_attr_all_ad_channels.dev_attr.attr,
1662 &iio_dev_attr_disable_averaging.dev_attr.attr,
1663 &iio_dev_attr_enable_smbus_timeout.dev_attr.attr,
1664 &iio_dev_attr_powerdown.dev_attr.attr,
1665 &iio_dev_attr_fast_ad_clock.dev_attr.attr,
1666 &iio_dev_attr_da_high_resolution.dev_attr.attr,
1667 &iio_dev_attr_enable_proportion_DACA.dev_attr.attr,
1668 &iio_dev_attr_enable_proportion_DACB.dev_attr.attr,
1669 &iio_dev_attr_DAC_2Vref_channels_mask.dev_attr.attr,
1670 &iio_dev_attr_DAC_update_mode.dev_attr.attr,
1671 &iio_dev_attr_all_DAC_update_modes.dev_attr.attr,
1672 &iio_dev_attr_update_DAC.dev_attr.attr,
1673 &iio_dev_attr_DA_AB_Vref_bypass.dev_attr.attr,
1674 &iio_dev_attr_DA_CD_Vref_bypass.dev_attr.attr,
1675 &iio_dev_attr_DAC_internal_Vref.dev_attr.attr,
1676 &iio_dev_attr_VDD.dev_attr.attr,
1677 &iio_dev_attr_in_temp.dev_attr.attr,
1678 &iio_dev_attr_ex_temp.dev_attr.attr,
1679 &iio_dev_attr_in_temp_offset.dev_attr.attr,
1680 &iio_dev_attr_ex_temp_offset.dev_attr.attr,
1681 &iio_dev_attr_in_analog_temp_offset.dev_attr.attr,
1682 &iio_dev_attr_ex_analog_temp_offset.dev_attr.attr,
1683 &iio_dev_attr_DAC_A.dev_attr.attr,
1684 &iio_dev_attr_DAC_B.dev_attr.attr,
1685 &iio_dev_attr_DAC_C.dev_attr.attr,
1686 &iio_dev_attr_DAC_D.dev_attr.attr,
1687 &iio_dev_attr_device_id.dev_attr.attr,
1688 &iio_dev_attr_manufactorer_id.dev_attr.attr,
1689 &iio_dev_attr_device_rev.dev_attr.attr,
1690 &iio_dev_attr_bus_type.dev_attr.attr,
1694 static const struct attribute_group adt7316_attribute_group = {
1695 .attrs = adt7316_attributes,
1698 static struct attribute *adt7516_attributes[] = {
1699 &iio_dev_attr_all_modes.dev_attr.attr,
1700 &iio_dev_attr_mode.dev_attr.attr,
1701 &iio_dev_attr_select_ex_temp.dev_attr.attr,
1702 &iio_dev_attr_enabled.dev_attr.attr,
1703 &iio_dev_attr_ad_channel.dev_attr.attr,
1704 &iio_dev_attr_all_ad_channels.dev_attr.attr,
1705 &iio_dev_attr_disable_averaging.dev_attr.attr,
1706 &iio_dev_attr_enable_smbus_timeout.dev_attr.attr,
1707 &iio_dev_attr_powerdown.dev_attr.attr,
1708 &iio_dev_attr_fast_ad_clock.dev_attr.attr,
1709 &iio_dev_attr_AIN_internal_Vref.dev_attr.attr,
1710 &iio_dev_attr_da_high_resolution.dev_attr.attr,
1711 &iio_dev_attr_enable_proportion_DACA.dev_attr.attr,
1712 &iio_dev_attr_enable_proportion_DACB.dev_attr.attr,
1713 &iio_dev_attr_DAC_2Vref_channels_mask.dev_attr.attr,
1714 &iio_dev_attr_DAC_update_mode.dev_attr.attr,
1715 &iio_dev_attr_all_DAC_update_modes.dev_attr.attr,
1716 &iio_dev_attr_update_DAC.dev_attr.attr,
1717 &iio_dev_attr_DA_AB_Vref_bypass.dev_attr.attr,
1718 &iio_dev_attr_DA_CD_Vref_bypass.dev_attr.attr,
1719 &iio_dev_attr_DAC_internal_Vref.dev_attr.attr,
1720 &iio_dev_attr_VDD.dev_attr.attr,
1721 &iio_dev_attr_in_temp.dev_attr.attr,
1722 &iio_dev_attr_ex_temp_AIN1.dev_attr.attr,
1723 &iio_dev_attr_AIN2.dev_attr.attr,
1724 &iio_dev_attr_AIN3.dev_attr.attr,
1725 &iio_dev_attr_AIN4.dev_attr.attr,
1726 &iio_dev_attr_in_temp_offset.dev_attr.attr,
1727 &iio_dev_attr_ex_temp_offset.dev_attr.attr,
1728 &iio_dev_attr_in_analog_temp_offset.dev_attr.attr,
1729 &iio_dev_attr_ex_analog_temp_offset.dev_attr.attr,
1730 &iio_dev_attr_DAC_A.dev_attr.attr,
1731 &iio_dev_attr_DAC_B.dev_attr.attr,
1732 &iio_dev_attr_DAC_C.dev_attr.attr,
1733 &iio_dev_attr_DAC_D.dev_attr.attr,
1734 &iio_dev_attr_device_id.dev_attr.attr,
1735 &iio_dev_attr_manufactorer_id.dev_attr.attr,
1736 &iio_dev_attr_device_rev.dev_attr.attr,
1737 &iio_dev_attr_bus_type.dev_attr.attr,
1741 static const struct attribute_group adt7516_attribute_group = {
1742 .attrs = adt7516_attributes,
1745 static irqreturn_t adt7316_event_handler(int irq, void *private)
1747 struct iio_dev *indio_dev = private;
1748 struct adt7316_chip_info *chip = iio_priv(indio_dev);
1753 ret = chip->bus.read(chip->bus.client, ADT7316_INT_STAT1, &stat1);
1755 if ((chip->id & ID_FAMILY_MASK) != ID_ADT75XX)
1758 time = iio_get_time_ns();
1760 iio_push_event(indio_dev,
1761 IIO_UNMOD_EVENT_CODE(IIO_TEMP, 0,
1766 iio_push_event(indio_dev,
1767 IIO_UNMOD_EVENT_CODE(IIO_TEMP, 0,
1769 IIO_EV_DIR_FALLING),
1772 iio_push_event(indio_dev,
1773 IIO_UNMOD_EVENT_CODE(IIO_TEMP, 1,
1778 iio_push_event(indio_dev,
1779 IIO_UNMOD_EVENT_CODE(IIO_TEMP, 1,
1781 IIO_EV_DIR_FALLING),
1784 iio_push_event(indio_dev,
1785 IIO_UNMOD_EVENT_CODE(IIO_VOLTAGE, 1,
1790 iio_push_event(indio_dev,
1791 IIO_UNMOD_EVENT_CODE(IIO_VOLTAGE, 2,
1796 iio_push_event(indio_dev,
1797 IIO_UNMOD_EVENT_CODE(IIO_VOLTAGE, 3,
1802 ret = chip->bus.read(chip->bus.client, ADT7316_INT_STAT2, &stat2);
1804 if (stat2 & ADT7316_INT_MASK2_VDD)
1805 iio_push_event(indio_dev,
1806 IIO_UNMOD_EVENT_CODE(IIO_VOLTAGE,
1817 * Show mask of enabled interrupts in Hex.
1819 static ssize_t adt7316_show_int_mask(struct device *dev,
1820 struct device_attribute *attr,
1823 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1824 struct adt7316_chip_info *chip = iio_priv(dev_info);
1826 return sprintf(buf, "0x%x\n", chip->int_mask);
1830 * Set 1 to the mask in Hex to enabled interrupts.
1832 static ssize_t adt7316_set_int_mask(struct device *dev,
1833 struct device_attribute *attr,
1837 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1838 struct adt7316_chip_info *chip = iio_priv(dev_info);
1843 ret = kstrtou16(buf, 16, &data);
1844 if (ret || data >= ADT7316_VDD_INT_MASK + 1)
1847 if (data & ADT7316_VDD_INT_MASK)
1848 mask = 0; /* enable vdd int */
1850 mask = ADT7316_INT_MASK2_VDD; /* disable vdd int */
1852 ret = chip->bus.write(chip->bus.client, ADT7316_INT_MASK2, mask);
1854 chip->int_mask &= ~ADT7316_VDD_INT_MASK;
1855 chip->int_mask |= data & ADT7316_VDD_INT_MASK;
1858 if (data & ADT7316_TEMP_AIN_INT_MASK) {
1859 if ((chip->id & ID_FAMILY_MASK) == ID_ADT73XX)
1860 /* mask in reg is opposite, set 1 to disable */
1861 mask = (~data) & ADT7316_TEMP_INT_MASK;
1863 /* mask in reg is opposite, set 1 to disable */
1864 mask = (~data) & ADT7316_TEMP_AIN_INT_MASK;
1866 ret = chip->bus.write(chip->bus.client, ADT7316_INT_MASK1, mask);
1868 chip->int_mask = mask;
1872 static inline ssize_t adt7316_show_ad_bound(struct device *dev,
1873 struct device_attribute *attr,
1876 struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
1877 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1878 struct adt7316_chip_info *chip = iio_priv(dev_info);
1883 if ((chip->id & ID_FAMILY_MASK) == ID_ADT73XX &&
1884 this_attr->address > ADT7316_EX_TEMP_LOW)
1887 ret = chip->bus.read(chip->bus.client, this_attr->address, &val);
1893 if (!((chip->id & ID_FAMILY_MASK) == ID_ADT75XX &&
1894 (chip->config1 & ADT7516_SEL_AIN1_2_EX_TEMP_MASK) == 0)) {
1899 return sprintf(buf, "%d\n", data);
1902 static inline ssize_t adt7316_set_ad_bound(struct device *dev,
1903 struct device_attribute *attr,
1907 struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
1908 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1909 struct adt7316_chip_info *chip = iio_priv(dev_info);
1914 if ((chip->id & ID_FAMILY_MASK) == ID_ADT73XX &&
1915 this_attr->address > ADT7316_EX_TEMP_LOW)
1918 ret = kstrtoint(buf, 10, &data);
1922 if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX &&
1923 (chip->config1 & ADT7516_SEL_AIN1_2_EX_TEMP_MASK) == 0) {
1924 if (data > 255 || data < 0)
1927 if (data > 127 || data < -128)
1936 ret = chip->bus.write(chip->bus.client, this_attr->address, val);
1943 static ssize_t adt7316_show_int_enabled(struct device *dev,
1944 struct device_attribute *attr,
1947 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1948 struct adt7316_chip_info *chip = iio_priv(dev_info);
1950 return sprintf(buf, "%d\n", !!(chip->config1 & ADT7316_INT_EN));
1953 static ssize_t adt7316_set_int_enabled(struct device *dev,
1954 struct device_attribute *attr,
1958 struct iio_dev *dev_info = dev_to_iio_dev(dev);
1959 struct adt7316_chip_info *chip = iio_priv(dev_info);
1963 config1 = chip->config1 & (~ADT7316_INT_EN);
1965 config1 |= ADT7316_INT_EN;
1967 ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG1, config1);
1971 chip->config1 = config1;
1976 static IIO_DEVICE_ATTR(int_mask,
1978 adt7316_show_int_mask, adt7316_set_int_mask,
1980 static IIO_DEVICE_ATTR(in_temp_high_value,
1982 adt7316_show_ad_bound, adt7316_set_ad_bound,
1983 ADT7316_IN_TEMP_HIGH);
1984 static IIO_DEVICE_ATTR(in_temp_low_value,
1986 adt7316_show_ad_bound, adt7316_set_ad_bound,
1987 ADT7316_IN_TEMP_LOW);
1988 static IIO_DEVICE_ATTR(ex_temp_high_value,
1990 adt7316_show_ad_bound, adt7316_set_ad_bound,
1991 ADT7316_EX_TEMP_HIGH);
1992 static IIO_DEVICE_ATTR(ex_temp_low_value,
1994 adt7316_show_ad_bound, adt7316_set_ad_bound,
1995 ADT7316_EX_TEMP_LOW);
1997 /* NASTY duplication to be fixed */
1998 static IIO_DEVICE_ATTR(ex_temp_ain1_high_value,
2000 adt7316_show_ad_bound, adt7316_set_ad_bound,
2001 ADT7316_EX_TEMP_HIGH);
2002 static IIO_DEVICE_ATTR(ex_temp_ain1_low_value,
2004 adt7316_show_ad_bound, adt7316_set_ad_bound,
2005 ADT7316_EX_TEMP_LOW);
2006 static IIO_DEVICE_ATTR(ain2_high_value,
2008 adt7316_show_ad_bound, adt7316_set_ad_bound,
2010 static IIO_DEVICE_ATTR(ain2_low_value,
2012 adt7316_show_ad_bound, adt7316_set_ad_bound,
2014 static IIO_DEVICE_ATTR(ain3_high_value,
2016 adt7316_show_ad_bound, adt7316_set_ad_bound,
2018 static IIO_DEVICE_ATTR(ain3_low_value,
2020 adt7316_show_ad_bound, adt7316_set_ad_bound,
2022 static IIO_DEVICE_ATTR(ain4_high_value,
2024 adt7316_show_ad_bound, adt7316_set_ad_bound,
2026 static IIO_DEVICE_ATTR(ain4_low_value,
2028 adt7316_show_ad_bound, adt7316_set_ad_bound,
2030 static IIO_DEVICE_ATTR(int_enabled,
2032 adt7316_show_int_enabled,
2033 adt7316_set_int_enabled, 0);
2035 static struct attribute *adt7316_event_attributes[] = {
2036 &iio_dev_attr_int_mask.dev_attr.attr,
2037 &iio_dev_attr_in_temp_high_value.dev_attr.attr,
2038 &iio_dev_attr_in_temp_low_value.dev_attr.attr,
2039 &iio_dev_attr_ex_temp_high_value.dev_attr.attr,
2040 &iio_dev_attr_ex_temp_low_value.dev_attr.attr,
2041 &iio_dev_attr_int_enabled.dev_attr.attr,
2045 static struct attribute_group adt7316_event_attribute_group = {
2046 .attrs = adt7316_event_attributes,
2050 static struct attribute *adt7516_event_attributes[] = {
2051 &iio_dev_attr_int_mask.dev_attr.attr,
2052 &iio_dev_attr_in_temp_high_value.dev_attr.attr,
2053 &iio_dev_attr_in_temp_low_value.dev_attr.attr,
2054 &iio_dev_attr_ex_temp_ain1_high_value.dev_attr.attr,
2055 &iio_dev_attr_ex_temp_ain1_low_value.dev_attr.attr,
2056 &iio_dev_attr_ain2_high_value.dev_attr.attr,
2057 &iio_dev_attr_ain2_low_value.dev_attr.attr,
2058 &iio_dev_attr_ain3_high_value.dev_attr.attr,
2059 &iio_dev_attr_ain3_low_value.dev_attr.attr,
2060 &iio_dev_attr_ain4_high_value.dev_attr.attr,
2061 &iio_dev_attr_ain4_low_value.dev_attr.attr,
2062 &iio_dev_attr_int_enabled.dev_attr.attr,
2066 static struct attribute_group adt7516_event_attribute_group = {
2067 .attrs = adt7516_event_attributes,
2071 #ifdef CONFIG_PM_SLEEP
2072 static int adt7316_disable(struct device *dev)
2074 struct iio_dev *dev_info = dev_get_drvdata(dev);
2075 struct adt7316_chip_info *chip = iio_priv(dev_info);
2077 return _adt7316_store_enabled(chip, 0);
2080 static int adt7316_enable(struct device *dev)
2082 struct iio_dev *dev_info = dev_get_drvdata(dev);
2083 struct adt7316_chip_info *chip = iio_priv(dev_info);
2085 return _adt7316_store_enabled(chip, 1);
2088 SIMPLE_DEV_PM_OPS(adt7316_pm_ops, adt7316_disable, adt7316_enable);
2089 EXPORT_SYMBOL_GPL(adt7316_pm_ops);
2092 static const struct iio_info adt7316_info = {
2093 .attrs = &adt7316_attribute_group,
2094 .event_attrs = &adt7316_event_attribute_group,
2095 .driver_module = THIS_MODULE,
2098 static const struct iio_info adt7516_info = {
2099 .attrs = &adt7516_attribute_group,
2100 .event_attrs = &adt7516_event_attribute_group,
2101 .driver_module = THIS_MODULE,
2105 * device probe and remove
2107 int adt7316_probe(struct device *dev, struct adt7316_bus *bus,
2110 struct adt7316_chip_info *chip;
2111 struct iio_dev *indio_dev;
2112 unsigned short *adt7316_platform_data = dev->platform_data;
2115 indio_dev = devm_iio_device_alloc(dev, sizeof(*chip));
2118 chip = iio_priv(indio_dev);
2119 /* this is only used for device removal purposes */
2120 dev_set_drvdata(dev, indio_dev);
2125 chip->id = ID_ADT7316 + (name[6] - '6');
2126 else if (name[4] == '5')
2127 chip->id = ID_ADT7516 + (name[6] - '6');
2131 chip->ldac_pin = adt7316_platform_data[1];
2132 if (chip->ldac_pin) {
2133 chip->config3 |= ADT7316_DA_EN_VIA_DAC_LDCA;
2134 if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX)
2135 chip->config1 |= ADT7516_SEL_AIN3;
2137 chip->int_mask = ADT7316_TEMP_INT_MASK | ADT7316_VDD_INT_MASK;
2138 if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX)
2139 chip->int_mask |= ADT7516_AIN_INT_MASK;
2141 indio_dev->dev.parent = dev;
2142 if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX)
2143 indio_dev->info = &adt7516_info;
2145 indio_dev->info = &adt7316_info;
2146 indio_dev->name = name;
2147 indio_dev->modes = INDIO_DIRECT_MODE;
2149 if (chip->bus.irq > 0) {
2150 if (adt7316_platform_data[0])
2151 chip->bus.irq_flags = adt7316_platform_data[0];
2153 ret = devm_request_threaded_irq(dev, chip->bus.irq,
2155 &adt7316_event_handler,
2156 chip->bus.irq_flags |
2163 if (chip->bus.irq_flags & IRQF_TRIGGER_HIGH)
2164 chip->config1 |= ADT7316_INT_POLARITY;
2167 ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG1, chip->config1);
2171 ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG3, chip->config3);
2175 ret = devm_iio_device_register(dev, indio_dev);
2179 dev_info(dev, "%s temperature sensor, ADC and DAC registered.\n",
2184 EXPORT_SYMBOL(adt7316_probe);
2186 MODULE_AUTHOR("Sonic Zhang <sonic.zhang@analog.com>");
2187 MODULE_DESCRIPTION("Analog Devices ADT7316/7/8 and ADT7516/7/9 digital temperature sensor, ADC and DAC driver");
2188 MODULE_LICENSE("GPL v2");