| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Sonic Zhang | 8961 | 86.76% | 1 | 2.50% |
| Jonathan Cameron | 728 | 7.05% | 11 | 27.50% |
| Shreeya Patel | 195 | 1.89% | 3 | 7.50% |
| Jeremy Fertic | 168 | 1.63% | 9 | 22.50% |
| Lars-Peter Clausen | 77 | 0.75% | 2 | 5.00% |
| Tony Luck | 61 | 0.59% | 1 | 2.50% |
| Michael S. Hansen | 54 | 0.52% | 1 | 2.50% |
| Shraddha Barke | 21 | 0.20% | 1 | 2.50% |
| Sachin Kamat | 19 | 0.18% | 2 | 5.00% |
| Jingoo Han | 19 | 0.18% | 1 | 2.50% |
| David Veenstra | 6 | 0.06% | 1 | 2.50% |
| Grégor Boirie | 6 | 0.06% | 1 | 2.50% |
| Fabio Estevam | 4 | 0.04% | 1 | 2.50% |
| Paul Gortmaker | 3 | 0.03% | 1 | 2.50% |
| Masanari Iida | 2 | 0.02% | 1 | 2.50% |
| Bhumika Goyal | 2 | 0.02% | 1 | 2.50% |
| Greg Kroah-Hartman | 2 | 0.02% | 1 | 2.50% |
| Gulsah Kose | 1 | 0.01% | 1 | 2.50% |
| Total | 10329 | 40 |
// SPDX-License-Identifier: GPL-2.0+ /* * ADT7316 digital temperature sensor driver supporting ADT7316/7/8 ADT7516/7/9 * * Copyright 2010 Analog Devices Inc. */ #include <linux/interrupt.h> #include <linux/gpio/consumer.h> #include <linux/irq.h> #include <linux/workqueue.h> #include <linux/device.h> #include <linux/kernel.h> #include <linux/slab.h> #include <linux/sysfs.h> #include <linux/list.h> #include <linux/i2c.h> #include <linux/rtc.h> #include <linux/module.h> #include <linux/iio/iio.h> #include <linux/iio/events.h> #include <linux/iio/sysfs.h> #include "adt7316.h" /* * ADT7316 registers definition */ #define ADT7316_INT_STAT1 0x0 #define ADT7316_INT_STAT2 0x1 #define ADT7316_LSB_IN_TEMP_VDD 0x3 #define ADT7316_LSB_IN_TEMP_MASK 0x3 #define ADT7316_LSB_VDD_MASK 0xC #define ADT7316_LSB_VDD_OFFSET 2 #define ADT7316_LSB_EX_TEMP_AIN 0x4 #define ADT7316_LSB_EX_TEMP_MASK 0x3 #define ADT7516_LSB_AIN_SHIFT 2 #define ADT7316_AD_MSB_DATA_BASE 0x6 #define ADT7316_AD_MSB_DATA_REGS 3 #define ADT7516_AD_MSB_DATA_REGS 6 #define ADT7316_MSB_VDD 0x6 #define ADT7316_MSB_IN_TEMP 0x7 #define ADT7316_MSB_EX_TEMP 0x8 #define ADT7516_MSB_AIN1 0x8 #define ADT7516_MSB_AIN2 0x9 #define ADT7516_MSB_AIN3 0xA #define ADT7516_MSB_AIN4 0xB #define ADT7316_DA_DATA_BASE 0x10 #define ADT7316_DA_10_BIT_LSB_SHIFT 6 #define ADT7316_DA_12_BIT_LSB_SHIFT 4 #define ADT7316_DA_MSB_DATA_REGS 4 #define ADT7316_LSB_DAC_A 0x10 #define ADT7316_MSB_DAC_A 0x11 #define ADT7316_LSB_DAC_B 0x12 #define ADT7316_MSB_DAC_B 0x13 #define ADT7316_LSB_DAC_C 0x14 #define ADT7316_MSB_DAC_C 0x15 #define ADT7316_LSB_DAC_D 0x16 #define ADT7316_MSB_DAC_D 0x17 #define ADT7316_CONFIG1 0x18 #define ADT7316_CONFIG2 0x19 #define ADT7316_CONFIG3 0x1A #define ADT7316_DAC_CONFIG 0x1B #define ADT7316_LDAC_CONFIG 0x1C #define ADT7316_INT_MASK1 0x1D #define ADT7316_INT_MASK2 0x1E #define ADT7316_IN_TEMP_OFFSET 0x1F #define ADT7316_EX_TEMP_OFFSET 0x20 #define ADT7316_IN_ANALOG_TEMP_OFFSET 0x21 #define ADT7316_EX_ANALOG_TEMP_OFFSET 0x22 #define ADT7316_VDD_HIGH 0x23 #define ADT7316_VDD_LOW 0x24 #define ADT7316_IN_TEMP_HIGH 0x25 #define ADT7316_IN_TEMP_LOW 0x26 #define ADT7316_EX_TEMP_HIGH 0x27 #define ADT7316_EX_TEMP_LOW 0x28 #define ADT7516_AIN2_HIGH 0x2B #define ADT7516_AIN2_LOW 0x2C #define ADT7516_AIN3_HIGH 0x2D #define ADT7516_AIN3_LOW 0x2E #define ADT7516_AIN4_HIGH 0x2F #define ADT7516_AIN4_LOW 0x30 #define ADT7316_DEVICE_ID 0x4D #define ADT7316_MANUFACTURE_ID 0x4E #define ADT7316_DEVICE_REV 0x4F #define ADT7316_SPI_LOCK_STAT 0x7F /* * ADT7316 config1 */ #define ADT7316_EN 0x1 #define ADT7516_SEL_EX_TEMP 0x4 #define ADT7516_SEL_AIN1_2_EX_TEMP_MASK 0x6 #define ADT7516_SEL_AIN3 0x8 #define ADT7316_INT_EN 0x20 #define ADT7316_INT_POLARITY 0x40 #define ADT7316_PD 0x80 /* * ADT7316 config2 */ #define ADT7316_AD_SINGLE_CH_MASK 0x3 #define ADT7516_AD_SINGLE_CH_MASK 0x7 #define ADT7316_AD_SINGLE_CH_VDD 0 #define ADT7316_AD_SINGLE_CH_IN 1 #define ADT7316_AD_SINGLE_CH_EX 2 #define ADT7516_AD_SINGLE_CH_AIN1 2 #define ADT7516_AD_SINGLE_CH_AIN2 3 #define ADT7516_AD_SINGLE_CH_AIN3 4 #define ADT7516_AD_SINGLE_CH_AIN4 5 #define ADT7316_AD_SINGLE_CH_MODE 0x10 #define ADT7316_DISABLE_AVERAGING 0x20 #define ADT7316_EN_SMBUS_TIMEOUT 0x40 #define ADT7316_RESET 0x80 /* * ADT7316 config3 */ #define ADT7316_ADCLK_22_5 0x1 #define ADT7316_DA_HIGH_RESOLUTION 0x2 #define ADT7316_DA_EN_VIA_DAC_LDAC 0x8 #define ADT7516_AIN_IN_VREF 0x10 #define ADT7316_EN_IN_TEMP_PROP_DACA 0x20 #define ADT7316_EN_EX_TEMP_PROP_DACB 0x40 /* * ADT7316 DAC config */ #define ADT7316_DA_2VREF_CH_MASK 0xF #define ADT7316_DA_EN_MODE_MASK 0x30 #define ADT7316_DA_EN_MODE_SHIFT 4 #define ADT7316_DA_EN_MODE_SINGLE 0x00 #define ADT7316_DA_EN_MODE_AB_CD 0x10 #define ADT7316_DA_EN_MODE_ABCD 0x20 #define ADT7316_DA_EN_MODE_LDAC 0x30 #define ADT7316_VREF_BYPASS_DAC_AB 0x40 #define ADT7316_VREF_BYPASS_DAC_CD 0x80 /* * ADT7316 LDAC config */ #define ADT7316_LDAC_EN_DA_MASK 0xF #define ADT7316_DAC_IN_VREF 0x10 #define ADT7516_DAC_AB_IN_VREF 0x10 #define ADT7516_DAC_CD_IN_VREF 0x20 #define ADT7516_DAC_IN_VREF_OFFSET 4 #define ADT7516_DAC_IN_VREF_MASK 0x30 /* * ADT7316 INT_MASK2 */ #define ADT7316_INT_MASK2_VDD 0x10 /* * ADT7316 value masks */ #define ADT7316_VALUE_MASK 0xfff #define ADT7316_T_VALUE_SIGN 0x400 #define ADT7316_T_VALUE_FLOAT_OFFSET 2 #define ADT7316_T_VALUE_FLOAT_MASK 0x2 /* * Chip ID */ #define ID_ADT7316 0x1 #define ID_ADT7317 0x2 #define ID_ADT7318 0x3 #define ID_ADT7516 0x11 #define ID_ADT7517 0x12 #define ID_ADT7519 0x14 #define ID_FAMILY_MASK 0xF0 #define ID_ADT73XX 0x0 #define ID_ADT75XX 0x10 /* * struct adt7316_chip_info - chip specific information */ struct adt7316_chip_info { struct adt7316_bus bus; struct gpio_desc *ldac_pin; u16 int_mask; /* 0x2f */ u8 config1; u8 config2; u8 config3; u8 dac_config; /* DAC config */ u8 ldac_config; /* LDAC config */ u8 dac_bits; /* 8, 10, 12 */ u8 id; /* chip id */ }; /* * Logic interrupt mask for user application to enable * interrupts. */ #define ADT7316_IN_TEMP_HIGH_INT_MASK 0x1 #define ADT7316_IN_TEMP_LOW_INT_MASK 0x2 #define ADT7316_EX_TEMP_HIGH_INT_MASK 0x4 #define ADT7316_EX_TEMP_LOW_INT_MASK 0x8 #define ADT7316_EX_TEMP_FAULT_INT_MASK 0x10 #define ADT7516_AIN1_INT_MASK 0x4 #define ADT7516_AIN2_INT_MASK 0x20 #define ADT7516_AIN3_INT_MASK 0x40 #define ADT7516_AIN4_INT_MASK 0x80 #define ADT7316_VDD_INT_MASK 0x100 #define ADT7316_TEMP_INT_MASK 0x1F #define ADT7516_AIN_INT_MASK 0xE0 #define ADT7316_TEMP_AIN_INT_MASK \ (ADT7316_TEMP_INT_MASK) /* * struct adt7316_chip_info - chip specific information */ struct adt7316_limit_regs { u16 data_high; u16 data_low; }; static ssize_t adt7316_show_enabled(struct device *dev, struct device_attribute *attr, char *buf) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); return sprintf(buf, "%d\n", !!(chip->config1 & ADT7316_EN)); } static ssize_t _adt7316_store_enabled(struct adt7316_chip_info *chip, int enable) { u8 config1; int ret; if (enable) config1 = chip->config1 | ADT7316_EN; else config1 = chip->config1 & ~ADT7316_EN; ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG1, config1); if (ret) return -EIO; chip->config1 = config1; return ret; } static ssize_t adt7316_store_enabled(struct device *dev, struct device_attribute *attr, const char *buf, size_t len) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); int enable; if (buf[0] == '1') enable = 1; else enable = 0; if (_adt7316_store_enabled(chip, enable) < 0) return -EIO; return len; } static IIO_DEVICE_ATTR(enabled, 0644, adt7316_show_enabled, adt7316_store_enabled, 0); static ssize_t adt7316_show_select_ex_temp(struct device *dev, struct device_attribute *attr, char *buf) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); if ((chip->id & ID_FAMILY_MASK) != ID_ADT75XX) return -EPERM; return sprintf(buf, "%d\n", !!(chip->config1 & ADT7516_SEL_EX_TEMP)); } static ssize_t adt7316_store_select_ex_temp(struct device *dev, struct device_attribute *attr, const char *buf, size_t len) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); u8 config1; int ret; if ((chip->id & ID_FAMILY_MASK) != ID_ADT75XX) return -EPERM; config1 = chip->config1 & (~ADT7516_SEL_EX_TEMP); if (buf[0] == '1') config1 |= ADT7516_SEL_EX_TEMP; ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG1, config1); if (ret) return -EIO; chip->config1 = config1; return len; } static IIO_DEVICE_ATTR(select_ex_temp, 0644, adt7316_show_select_ex_temp, adt7316_store_select_ex_temp, 0); static ssize_t adt7316_show_mode(struct device *dev, struct device_attribute *attr, char *buf) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); if (chip->config2 & ADT7316_AD_SINGLE_CH_MODE) return sprintf(buf, "single_channel\n"); return sprintf(buf, "round_robin\n"); } static ssize_t adt7316_store_mode(struct device *dev, struct device_attribute *attr, const char *buf, size_t len) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); u8 config2; int ret; config2 = chip->config2 & (~ADT7316_AD_SINGLE_CH_MODE); if (!memcmp(buf, "single_channel", 14)) config2 |= ADT7316_AD_SINGLE_CH_MODE; ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG2, config2); if (ret) return -EIO; chip->config2 = config2; return len; } static IIO_DEVICE_ATTR(mode, 0644, adt7316_show_mode, adt7316_store_mode, 0); static ssize_t adt7316_show_all_modes(struct device *dev, struct device_attribute *attr, char *buf) { return sprintf(buf, "single_channel\nround_robin\n"); } static IIO_DEVICE_ATTR(all_modes, 0444, adt7316_show_all_modes, NULL, 0); static ssize_t adt7316_show_ad_channel(struct device *dev, struct device_attribute *attr, char *buf) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); if (!(chip->config2 & ADT7316_AD_SINGLE_CH_MODE)) return -EPERM; switch (chip->config2 & ADT7516_AD_SINGLE_CH_MASK) { case ADT7316_AD_SINGLE_CH_VDD: return sprintf(buf, "0 - VDD\n"); case ADT7316_AD_SINGLE_CH_IN: return sprintf(buf, "1 - Internal Temperature\n"); case ADT7316_AD_SINGLE_CH_EX: if (((chip->id & ID_FAMILY_MASK) == ID_ADT75XX) && (chip->config1 & ADT7516_SEL_AIN1_2_EX_TEMP_MASK) == 0) return sprintf(buf, "2 - AIN1\n"); return sprintf(buf, "2 - External Temperature\n"); case ADT7516_AD_SINGLE_CH_AIN2: if ((chip->config1 & ADT7516_SEL_AIN1_2_EX_TEMP_MASK) == 0) return sprintf(buf, "3 - AIN2\n"); return sprintf(buf, "N/A\n"); case ADT7516_AD_SINGLE_CH_AIN3: if (chip->config1 & ADT7516_SEL_AIN3) return sprintf(buf, "4 - AIN3\n"); return sprintf(buf, "N/A\n"); case ADT7516_AD_SINGLE_CH_AIN4: return sprintf(buf, "5 - AIN4\n"); default: return sprintf(buf, "N/A\n"); } } static ssize_t adt7316_store_ad_channel(struct device *dev, struct device_attribute *attr, const char *buf, size_t len) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); u8 config2; u8 data; int ret; if (!(chip->config2 & ADT7316_AD_SINGLE_CH_MODE)) return -EPERM; ret = kstrtou8(buf, 10, &data); if (ret) return -EINVAL; if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX) { if (data > 5) return -EINVAL; config2 = chip->config2 & (~ADT7516_AD_SINGLE_CH_MASK); } else { if (data > 2) return -EINVAL; config2 = chip->config2 & (~ADT7316_AD_SINGLE_CH_MASK); } config2 |= data; ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG2, config2); if (ret) return -EIO; chip->config2 = config2; return len; } static IIO_DEVICE_ATTR(ad_channel, 0644, adt7316_show_ad_channel, adt7316_store_ad_channel, 0); static ssize_t adt7316_show_all_ad_channels(struct device *dev, struct device_attribute *attr, char *buf) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); if (!(chip->config2 & ADT7316_AD_SINGLE_CH_MODE)) return -EPERM; if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX) return sprintf(buf, "0 - VDD\n1 - Internal Temperature\n" "2 - External Temperature or AIN1\n" "3 - AIN2\n4 - AIN3\n5 - AIN4\n"); return sprintf(buf, "0 - VDD\n1 - Internal Temperature\n" "2 - External Temperature\n"); } static IIO_DEVICE_ATTR(all_ad_channels, 0444, adt7316_show_all_ad_channels, NULL, 0); static ssize_t adt7316_show_disable_averaging(struct device *dev, struct device_attribute *attr, char *buf) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); return sprintf(buf, "%d\n", !!(chip->config2 & ADT7316_DISABLE_AVERAGING)); } static ssize_t adt7316_store_disable_averaging(struct device *dev, struct device_attribute *attr, const char *buf, size_t len) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); u8 config2; int ret; config2 = chip->config2 & (~ADT7316_DISABLE_AVERAGING); if (buf[0] == '1') config2 |= ADT7316_DISABLE_AVERAGING; ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG2, config2); if (ret) return -EIO; chip->config2 = config2; return len; } static IIO_DEVICE_ATTR(disable_averaging, 0644, adt7316_show_disable_averaging, adt7316_store_disable_averaging, 0); static ssize_t adt7316_show_enable_smbus_timeout(struct device *dev, struct device_attribute *attr, char *buf) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); return sprintf(buf, "%d\n", !!(chip->config2 & ADT7316_EN_SMBUS_TIMEOUT)); } static ssize_t adt7316_store_enable_smbus_timeout(struct device *dev, struct device_attribute *attr, const char *buf, size_t len) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); u8 config2; int ret; config2 = chip->config2 & (~ADT7316_EN_SMBUS_TIMEOUT); if (buf[0] == '1') config2 |= ADT7316_EN_SMBUS_TIMEOUT; ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG2, config2); if (ret) return -EIO; chip->config2 = config2; return len; } static IIO_DEVICE_ATTR(enable_smbus_timeout, 0644, adt7316_show_enable_smbus_timeout, adt7316_store_enable_smbus_timeout, 0); static ssize_t adt7316_show_powerdown(struct device *dev, struct device_attribute *attr, char *buf) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); return sprintf(buf, "%d\n", !!(chip->config1 & ADT7316_PD)); } static ssize_t adt7316_store_powerdown(struct device *dev, struct device_attribute *attr, const char *buf, size_t len) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); u8 config1; int ret; config1 = chip->config1 & (~ADT7316_PD); if (buf[0] == '1') config1 |= ADT7316_PD; ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG1, config1); if (ret) return -EIO; chip->config1 = config1; return len; } static IIO_DEVICE_ATTR(powerdown, 0644, adt7316_show_powerdown, adt7316_store_powerdown, 0); static ssize_t adt7316_show_fast_ad_clock(struct device *dev, struct device_attribute *attr, char *buf) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); return sprintf(buf, "%d\n", !!(chip->config3 & ADT7316_ADCLK_22_5)); } static ssize_t adt7316_store_fast_ad_clock(struct device *dev, struct device_attribute *attr, const char *buf, size_t len) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); u8 config3; int ret; config3 = chip->config3 & (~ADT7316_ADCLK_22_5); if (buf[0] == '1') config3 |= ADT7316_ADCLK_22_5; ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG3, config3); if (ret) return -EIO; chip->config3 = config3; return len; } static IIO_DEVICE_ATTR(fast_ad_clock, 0644, adt7316_show_fast_ad_clock, adt7316_store_fast_ad_clock, 0); static ssize_t adt7316_show_da_high_resolution(struct device *dev, struct device_attribute *attr, char *buf) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); if (chip->config3 & ADT7316_DA_HIGH_RESOLUTION) { if (chip->id != ID_ADT7318 && chip->id != ID_ADT7519) return sprintf(buf, "1 (10 bits)\n"); } return sprintf(buf, "0 (8 bits)\n"); } static ssize_t adt7316_store_da_high_resolution(struct device *dev, struct device_attribute *attr, const char *buf, size_t len) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); u8 config3; int ret; if (chip->id == ID_ADT7318 || chip->id == ID_ADT7519) return -EPERM; config3 = chip->config3 & (~ADT7316_DA_HIGH_RESOLUTION); if (buf[0] == '1') config3 |= ADT7316_DA_HIGH_RESOLUTION; ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG3, config3); if (ret) return -EIO; chip->config3 = config3; return len; } static IIO_DEVICE_ATTR(da_high_resolution, 0644, adt7316_show_da_high_resolution, adt7316_store_da_high_resolution, 0); static ssize_t adt7316_show_AIN_internal_Vref(struct device *dev, struct device_attribute *attr, char *buf) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); if ((chip->id & ID_FAMILY_MASK) != ID_ADT75XX) return -EPERM; return sprintf(buf, "%d\n", !!(chip->config3 & ADT7516_AIN_IN_VREF)); } static ssize_t adt7316_store_AIN_internal_Vref(struct device *dev, struct device_attribute *attr, const char *buf, size_t len) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); u8 config3; int ret; if ((chip->id & ID_FAMILY_MASK) != ID_ADT75XX) return -EPERM; if (buf[0] != '1') config3 = chip->config3 & (~ADT7516_AIN_IN_VREF); else config3 = chip->config3 | ADT7516_AIN_IN_VREF; ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG3, config3); if (ret) return -EIO; chip->config3 = config3; return len; } static IIO_DEVICE_ATTR(AIN_internal_Vref, 0644, adt7316_show_AIN_internal_Vref, adt7316_store_AIN_internal_Vref, 0); static ssize_t adt7316_show_enable_prop_DACA(struct device *dev, struct device_attribute *attr, char *buf) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); return sprintf(buf, "%d\n", !!(chip->config3 & ADT7316_EN_IN_TEMP_PROP_DACA)); } static ssize_t adt7316_store_enable_prop_DACA(struct device *dev, struct device_attribute *attr, const char *buf, size_t len) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); u8 config3; int ret; config3 = chip->config3 & (~ADT7316_EN_IN_TEMP_PROP_DACA); if (buf[0] == '1') config3 |= ADT7316_EN_IN_TEMP_PROP_DACA; ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG3, config3); if (ret) return -EIO; chip->config3 = config3; return len; } static IIO_DEVICE_ATTR(enable_proportion_DACA, 0644, adt7316_show_enable_prop_DACA, adt7316_store_enable_prop_DACA, 0); static ssize_t adt7316_show_enable_prop_DACB(struct device *dev, struct device_attribute *attr, char *buf) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); return sprintf(buf, "%d\n", !!(chip->config3 & ADT7316_EN_EX_TEMP_PROP_DACB)); } static ssize_t adt7316_store_enable_prop_DACB(struct device *dev, struct device_attribute *attr, const char *buf, size_t len) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); u8 config3; int ret; config3 = chip->config3 & (~ADT7316_EN_EX_TEMP_PROP_DACB); if (buf[0] == '1') config3 |= ADT7316_EN_EX_TEMP_PROP_DACB; ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG3, config3); if (ret) return -EIO; chip->config3 = config3; return len; } static IIO_DEVICE_ATTR(enable_proportion_DACB, 0644, adt7316_show_enable_prop_DACB, adt7316_store_enable_prop_DACB, 0); static ssize_t adt7316_show_DAC_2Vref_ch_mask(struct device *dev, struct device_attribute *attr, char *buf) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); return sprintf(buf, "0x%x\n", chip->dac_config & ADT7316_DA_2VREF_CH_MASK); } static ssize_t adt7316_store_DAC_2Vref_ch_mask(struct device *dev, struct device_attribute *attr, const char *buf, size_t len) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); u8 dac_config; u8 data; int ret; ret = kstrtou8(buf, 16, &data); if (ret || data > ADT7316_DA_2VREF_CH_MASK) return -EINVAL; dac_config = chip->dac_config & (~ADT7316_DA_2VREF_CH_MASK); dac_config |= data; ret = chip->bus.write(chip->bus.client, ADT7316_DAC_CONFIG, dac_config); if (ret) return -EIO; chip->dac_config = dac_config; return len; } static IIO_DEVICE_ATTR(DAC_2Vref_channels_mask, 0644, adt7316_show_DAC_2Vref_ch_mask, adt7316_store_DAC_2Vref_ch_mask, 0); static ssize_t adt7316_show_DAC_update_mode(struct device *dev, struct device_attribute *attr, char *buf) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); if (!(chip->config3 & ADT7316_DA_EN_VIA_DAC_LDAC)) return sprintf(buf, "manual\n"); switch (chip->dac_config & ADT7316_DA_EN_MODE_MASK) { case ADT7316_DA_EN_MODE_SINGLE: return sprintf(buf, "0 - auto at any MSB DAC writing\n"); case ADT7316_DA_EN_MODE_AB_CD: return sprintf(buf, "1 - auto at MSB DAC AB and CD writing\n"); case ADT7316_DA_EN_MODE_ABCD: return sprintf(buf, "2 - auto at MSB DAC ABCD writing\n"); default: /* ADT7316_DA_EN_MODE_LDAC */ return sprintf(buf, "3 - manual\n"); } } static ssize_t adt7316_store_DAC_update_mode(struct device *dev, struct device_attribute *attr, const char *buf, size_t len) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); u8 dac_config; u8 data; int ret; if (!(chip->config3 & ADT7316_DA_EN_VIA_DAC_LDAC)) return -EPERM; ret = kstrtou8(buf, 10, &data); if (ret || data > (ADT7316_DA_EN_MODE_MASK >> ADT7316_DA_EN_MODE_SHIFT)) return -EINVAL; dac_config = chip->dac_config & (~ADT7316_DA_EN_MODE_MASK); dac_config |= data << ADT7316_DA_EN_MODE_SHIFT; ret = chip->bus.write(chip->bus.client, ADT7316_DAC_CONFIG, dac_config); if (ret) return -EIO; chip->dac_config = dac_config; return len; } static IIO_DEVICE_ATTR(DAC_update_mode, 0644, adt7316_show_DAC_update_mode, adt7316_store_DAC_update_mode, 0); static ssize_t adt7316_show_all_DAC_update_modes(struct device *dev, struct device_attribute *attr, char *buf) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); if (chip->config3 & ADT7316_DA_EN_VIA_DAC_LDAC) return sprintf(buf, "0 - auto at any MSB DAC writing\n" "1 - auto at MSB DAC AB and CD writing\n" "2 - auto at MSB DAC ABCD writing\n" "3 - manual\n"); return sprintf(buf, "manual\n"); } static IIO_DEVICE_ATTR(all_DAC_update_modes, 0444, adt7316_show_all_DAC_update_modes, NULL, 0); static ssize_t adt7316_store_update_DAC(struct device *dev, struct device_attribute *attr, const char *buf, size_t len) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); u8 ldac_config; u8 data; int ret; if (chip->config3 & ADT7316_DA_EN_VIA_DAC_LDAC) { if ((chip->dac_config & ADT7316_DA_EN_MODE_MASK) != ADT7316_DA_EN_MODE_LDAC) return -EPERM; ret = kstrtou8(buf, 16, &data); if (ret || data > ADT7316_LDAC_EN_DA_MASK) return -EINVAL; ldac_config = chip->ldac_config & (~ADT7316_LDAC_EN_DA_MASK); ldac_config |= data; ret = chip->bus.write(chip->bus.client, ADT7316_LDAC_CONFIG, ldac_config); if (ret) return -EIO; } else { gpiod_set_value(chip->ldac_pin, 0); gpiod_set_value(chip->ldac_pin, 1); } return len; } static IIO_DEVICE_ATTR(update_DAC, 0644, NULL, adt7316_store_update_DAC, 0); static ssize_t adt7316_show_DA_AB_Vref_bypass(struct device *dev, struct device_attribute *attr, char *buf) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); return sprintf(buf, "%d\n", !!(chip->dac_config & ADT7316_VREF_BYPASS_DAC_AB)); } static ssize_t adt7316_store_DA_AB_Vref_bypass(struct device *dev, struct device_attribute *attr, const char *buf, size_t len) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); u8 dac_config; int ret; dac_config = chip->dac_config & (~ADT7316_VREF_BYPASS_DAC_AB); if (buf[0] == '1') dac_config |= ADT7316_VREF_BYPASS_DAC_AB; ret = chip->bus.write(chip->bus.client, ADT7316_DAC_CONFIG, dac_config); if (ret) return -EIO; chip->dac_config = dac_config; return len; } static IIO_DEVICE_ATTR(DA_AB_Vref_bypass, 0644, adt7316_show_DA_AB_Vref_bypass, adt7316_store_DA_AB_Vref_bypass, 0); static ssize_t adt7316_show_DA_CD_Vref_bypass(struct device *dev, struct device_attribute *attr, char *buf) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); return sprintf(buf, "%d\n", !!(chip->dac_config & ADT7316_VREF_BYPASS_DAC_CD)); } static ssize_t adt7316_store_DA_CD_Vref_bypass(struct device *dev, struct device_attribute *attr, const char *buf, size_t len) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); u8 dac_config; int ret; dac_config = chip->dac_config & (~ADT7316_VREF_BYPASS_DAC_CD); if (buf[0] == '1') dac_config |= ADT7316_VREF_BYPASS_DAC_CD; ret = chip->bus.write(chip->bus.client, ADT7316_DAC_CONFIG, dac_config); if (ret) return -EIO; chip->dac_config = dac_config; return len; } static IIO_DEVICE_ATTR(DA_CD_Vref_bypass, 0644, adt7316_show_DA_CD_Vref_bypass, adt7316_store_DA_CD_Vref_bypass, 0); static ssize_t adt7316_show_DAC_internal_Vref(struct device *dev, struct device_attribute *attr, char *buf) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX) return sprintf(buf, "0x%x\n", (chip->ldac_config & ADT7516_DAC_IN_VREF_MASK) >> ADT7516_DAC_IN_VREF_OFFSET); return sprintf(buf, "%d\n", !!(chip->ldac_config & ADT7316_DAC_IN_VREF)); } static ssize_t adt7316_store_DAC_internal_Vref(struct device *dev, struct device_attribute *attr, const char *buf, size_t len) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); u8 ldac_config; u8 data; int ret; if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX) { ret = kstrtou8(buf, 16, &data); if (ret || data > 3) return -EINVAL; ldac_config = chip->ldac_config & (~ADT7516_DAC_IN_VREF_MASK); if (data & 0x1) ldac_config |= ADT7516_DAC_AB_IN_VREF; if (data & 0x2) ldac_config |= ADT7516_DAC_CD_IN_VREF; } else { ret = kstrtou8(buf, 16, &data); if (ret) return -EINVAL; ldac_config = chip->ldac_config & (~ADT7316_DAC_IN_VREF); if (data) ldac_config = chip->ldac_config | ADT7316_DAC_IN_VREF; } ret = chip->bus.write(chip->bus.client, ADT7316_LDAC_CONFIG, ldac_config); if (ret) return -EIO; chip->ldac_config = ldac_config; return len; } static IIO_DEVICE_ATTR(DAC_internal_Vref, 0644, adt7316_show_DAC_internal_Vref, adt7316_store_DAC_internal_Vref, 0); static ssize_t adt7316_show_ad(struct adt7316_chip_info *chip, int channel, char *buf) { u16 data; u8 msb, lsb; char sign = ' '; int ret; if ((chip->config2 & ADT7316_AD_SINGLE_CH_MODE) && channel != (chip->config2 & ADT7516_AD_SINGLE_CH_MASK)) return -EPERM; switch (channel) { case ADT7316_AD_SINGLE_CH_IN: ret = chip->bus.read(chip->bus.client, ADT7316_LSB_IN_TEMP_VDD, &lsb); if (ret) return -EIO; ret = chip->bus.read(chip->bus.client, ADT7316_AD_MSB_DATA_BASE + channel, &msb); if (ret) return -EIO; data = msb << ADT7316_T_VALUE_FLOAT_OFFSET; data |= lsb & ADT7316_LSB_IN_TEMP_MASK; break; case ADT7316_AD_SINGLE_CH_VDD: ret = chip->bus.read(chip->bus.client, ADT7316_LSB_IN_TEMP_VDD, &lsb); if (ret) return -EIO; ret = chip->bus.read(chip->bus.client, ADT7316_AD_MSB_DATA_BASE + channel, &msb); if (ret) return -EIO; data = msb << ADT7316_T_VALUE_FLOAT_OFFSET; data |= (lsb & ADT7316_LSB_VDD_MASK) >> ADT7316_LSB_VDD_OFFSET; return sprintf(buf, "%d\n", data); default: /* ex_temp and ain */ ret = chip->bus.read(chip->bus.client, ADT7316_LSB_EX_TEMP_AIN, &lsb); if (ret) return -EIO; ret = chip->bus.read(chip->bus.client, ADT7316_AD_MSB_DATA_BASE + channel, &msb); if (ret) return -EIO; data = msb << ADT7316_T_VALUE_FLOAT_OFFSET; data |= lsb & (ADT7316_LSB_EX_TEMP_MASK << (ADT7516_LSB_AIN_SHIFT * (channel - (ADT7316_MSB_EX_TEMP - ADT7316_AD_MSB_DATA_BASE)))); if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX) return sprintf(buf, "%d\n", data); break; } if (data & ADT7316_T_VALUE_SIGN) { /* convert supplement to positive value */ data = (ADT7316_T_VALUE_SIGN << 1) - data; sign = '-'; } return sprintf(buf, "%c%d.%.2d\n", sign, (data >> ADT7316_T_VALUE_FLOAT_OFFSET), (data & ADT7316_T_VALUE_FLOAT_MASK) * 25); } static ssize_t adt7316_show_VDD(struct device *dev, struct device_attribute *attr, char *buf) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); return adt7316_show_ad(chip, ADT7316_AD_SINGLE_CH_VDD, buf); } static IIO_DEVICE_ATTR(VDD, 0444, adt7316_show_VDD, NULL, 0); static ssize_t adt7316_show_in_temp(struct device *dev, struct device_attribute *attr, char *buf) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); return adt7316_show_ad(chip, ADT7316_AD_SINGLE_CH_IN, buf); } static IIO_DEVICE_ATTR(in_temp, 0444, adt7316_show_in_temp, NULL, 0); static ssize_t adt7316_show_ex_temp_AIN1(struct device *dev, struct device_attribute *attr, char *buf) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); return adt7316_show_ad(chip, ADT7316_AD_SINGLE_CH_EX, buf); } static IIO_DEVICE_ATTR(ex_temp_AIN1, 0444, adt7316_show_ex_temp_AIN1, NULL, 0); static IIO_DEVICE_ATTR(ex_temp, 0444, adt7316_show_ex_temp_AIN1, NULL, 0); static ssize_t adt7316_show_AIN2(struct device *dev, struct device_attribute *attr, char *buf) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); return adt7316_show_ad(chip, ADT7516_AD_SINGLE_CH_AIN2, buf); } static IIO_DEVICE_ATTR(AIN2, 0444, adt7316_show_AIN2, NULL, 0); static ssize_t adt7316_show_AIN3(struct device *dev, struct device_attribute *attr, char *buf) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); return adt7316_show_ad(chip, ADT7516_AD_SINGLE_CH_AIN3, buf); } static IIO_DEVICE_ATTR(AIN3, 0444, adt7316_show_AIN3, NULL, 0); static ssize_t adt7316_show_AIN4(struct device *dev, struct device_attribute *attr, char *buf) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); return adt7316_show_ad(chip, ADT7516_AD_SINGLE_CH_AIN4, buf); } static IIO_DEVICE_ATTR(AIN4, 0444, adt7316_show_AIN4, NULL, 0); static ssize_t adt7316_show_temp_offset(struct adt7316_chip_info *chip, int offset_addr, char *buf) { int data; u8 val; int ret; ret = chip->bus.read(chip->bus.client, offset_addr, &val); if (ret) return -EIO; data = (int)val; if (val & 0x80) data -= 256; return sprintf(buf, "%d\n", data); } static ssize_t adt7316_store_temp_offset(struct adt7316_chip_info *chip, int offset_addr, const char *buf, size_t len) { int data; u8 val; int ret; ret = kstrtoint(buf, 10, &data); if (ret || data > 127 || data < -128) return -EINVAL; if (data < 0) data += 256; val = (u8)data; ret = chip->bus.write(chip->bus.client, offset_addr, val); if (ret) return -EIO; return len; } static ssize_t adt7316_show_in_temp_offset(struct device *dev, struct device_attribute *attr, char *buf) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); return adt7316_show_temp_offset(chip, ADT7316_IN_TEMP_OFFSET, buf); } static ssize_t adt7316_store_in_temp_offset(struct device *dev, struct device_attribute *attr, const char *buf, size_t len) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); return adt7316_store_temp_offset(chip, ADT7316_IN_TEMP_OFFSET, buf, len); } static IIO_DEVICE_ATTR(in_temp_offset, 0644, adt7316_show_in_temp_offset, adt7316_store_in_temp_offset, 0); static ssize_t adt7316_show_ex_temp_offset(struct device *dev, struct device_attribute *attr, char *buf) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); return adt7316_show_temp_offset(chip, ADT7316_EX_TEMP_OFFSET, buf); } static ssize_t adt7316_store_ex_temp_offset(struct device *dev, struct device_attribute *attr, const char *buf, size_t len) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); return adt7316_store_temp_offset(chip, ADT7316_EX_TEMP_OFFSET, buf, len); } static IIO_DEVICE_ATTR(ex_temp_offset, 0644, adt7316_show_ex_temp_offset, adt7316_store_ex_temp_offset, 0); static ssize_t adt7316_show_in_analog_temp_offset(struct device *dev, struct device_attribute *attr, char *buf) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); return adt7316_show_temp_offset(chip, ADT7316_IN_ANALOG_TEMP_OFFSET, buf); } static ssize_t adt7316_store_in_analog_temp_offset(struct device *dev, struct device_attribute *attr, const char *buf, size_t len) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); return adt7316_store_temp_offset(chip, ADT7316_IN_ANALOG_TEMP_OFFSET, buf, len); } static IIO_DEVICE_ATTR(in_analog_temp_offset, 0644, adt7316_show_in_analog_temp_offset, adt7316_store_in_analog_temp_offset, 0); static ssize_t adt7316_show_ex_analog_temp_offset(struct device *dev, struct device_attribute *attr, char *buf) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); return adt7316_show_temp_offset(chip, ADT7316_EX_ANALOG_TEMP_OFFSET, buf); } static ssize_t adt7316_store_ex_analog_temp_offset(struct device *dev, struct device_attribute *attr, const char *buf, size_t len) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); return adt7316_store_temp_offset(chip, ADT7316_EX_ANALOG_TEMP_OFFSET, buf, len); } static IIO_DEVICE_ATTR(ex_analog_temp_offset, 0644, adt7316_show_ex_analog_temp_offset, adt7316_store_ex_analog_temp_offset, 0); static ssize_t adt7316_show_DAC(struct adt7316_chip_info *chip, int channel, char *buf) { u16 data = 0; u8 msb, lsb, offset; int ret; if (channel >= ADT7316_DA_MSB_DATA_REGS || (channel == 0 && (chip->config3 & ADT7316_EN_IN_TEMP_PROP_DACA)) || (channel == 1 && (chip->config3 & ADT7316_EN_EX_TEMP_PROP_DACB))) return -EPERM; offset = chip->dac_bits - 8; if (chip->dac_bits > 8) { ret = chip->bus.read(chip->bus.client, ADT7316_DA_DATA_BASE + channel * 2, &lsb); if (ret) return -EIO; } ret = chip->bus.read(chip->bus.client, ADT7316_DA_DATA_BASE + 1 + channel * 2, &msb); if (ret) return -EIO; if (chip->dac_bits == 12) data = lsb >> ADT7316_DA_12_BIT_LSB_SHIFT; else if (chip->dac_bits == 10) data = lsb >> ADT7316_DA_10_BIT_LSB_SHIFT; data |= msb << offset; return sprintf(buf, "%d\n", data); } static ssize_t adt7316_store_DAC(struct adt7316_chip_info *chip, int channel, const char *buf, size_t len) { u8 msb, lsb, lsb_reg, offset; u16 data; int ret; if (channel >= ADT7316_DA_MSB_DATA_REGS || (channel == 0 && (chip->config3 & ADT7316_EN_IN_TEMP_PROP_DACA)) || (channel == 1 && (chip->config3 & ADT7316_EN_EX_TEMP_PROP_DACB))) return -EPERM; offset = chip->dac_bits - 8; ret = kstrtou16(buf, 10, &data); if (ret || data >= (1 << chip->dac_bits)) return -EINVAL; if (chip->dac_bits > 8) { lsb = data & ((1 << offset) - 1); if (chip->dac_bits == 12) lsb_reg = lsb << ADT7316_DA_12_BIT_LSB_SHIFT; else lsb_reg = lsb << ADT7316_DA_10_BIT_LSB_SHIFT; ret = chip->bus.write(chip->bus.client, ADT7316_DA_DATA_BASE + channel * 2, lsb_reg); if (ret) return -EIO; } msb = data >> offset; ret = chip->bus.write(chip->bus.client, ADT7316_DA_DATA_BASE + 1 + channel * 2, msb); if (ret) return -EIO; return len; } static ssize_t adt7316_show_DAC_A(struct device *dev, struct device_attribute *attr, char *buf) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); return adt7316_show_DAC(chip, 0, buf); } static ssize_t adt7316_store_DAC_A(struct device *dev, struct device_attribute *attr, const char *buf, size_t len) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); return adt7316_store_DAC(chip, 0, buf, len); } static IIO_DEVICE_ATTR(DAC_A, 0644, adt7316_show_DAC_A, adt7316_store_DAC_A, 0); static ssize_t adt7316_show_DAC_B(struct device *dev, struct device_attribute *attr, char *buf) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); return adt7316_show_DAC(chip, 1, buf); } static ssize_t adt7316_store_DAC_B(struct device *dev, struct device_attribute *attr, const char *buf, size_t len) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); return adt7316_store_DAC(chip, 1, buf, len); } static IIO_DEVICE_ATTR(DAC_B, 0644, adt7316_show_DAC_B, adt7316_store_DAC_B, 0); static ssize_t adt7316_show_DAC_C(struct device *dev, struct device_attribute *attr, char *buf) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); return adt7316_show_DAC(chip, 2, buf); } static ssize_t adt7316_store_DAC_C(struct device *dev, struct device_attribute *attr, const char *buf, size_t len) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); return adt7316_store_DAC(chip, 2, buf, len); } static IIO_DEVICE_ATTR(DAC_C, 0644, adt7316_show_DAC_C, adt7316_store_DAC_C, 0); static ssize_t adt7316_show_DAC_D(struct device *dev, struct device_attribute *attr, char *buf) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); return adt7316_show_DAC(chip, 3, buf); } static ssize_t adt7316_store_DAC_D(struct device *dev, struct device_attribute *attr, const char *buf, size_t len) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); return adt7316_store_DAC(chip, 3, buf, len); } static IIO_DEVICE_ATTR(DAC_D, 0644, adt7316_show_DAC_D, adt7316_store_DAC_D, 0); static ssize_t adt7316_show_device_id(struct device *dev, struct device_attribute *attr, char *buf) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); u8 id; int ret; ret = chip->bus.read(chip->bus.client, ADT7316_DEVICE_ID, &id); if (ret) return -EIO; return sprintf(buf, "%d\n", id); } static IIO_DEVICE_ATTR(device_id, 0444, adt7316_show_device_id, NULL, 0); static ssize_t adt7316_show_manufactorer_id(struct device *dev, struct device_attribute *attr, char *buf) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); u8 id; int ret; ret = chip->bus.read(chip->bus.client, ADT7316_MANUFACTURE_ID, &id); if (ret) return -EIO; return sprintf(buf, "%d\n", id); } static IIO_DEVICE_ATTR(manufactorer_id, 0444, adt7316_show_manufactorer_id, NULL, 0); static ssize_t adt7316_show_device_rev(struct device *dev, struct device_attribute *attr, char *buf) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); u8 rev; int ret; ret = chip->bus.read(chip->bus.client, ADT7316_DEVICE_REV, &rev); if (ret) return -EIO; return sprintf(buf, "%d\n", rev); } static IIO_DEVICE_ATTR(device_rev, 0444, adt7316_show_device_rev, NULL, 0); static ssize_t adt7316_show_bus_type(struct device *dev, struct device_attribute *attr, char *buf) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); u8 stat; int ret; ret = chip->bus.read(chip->bus.client, ADT7316_SPI_LOCK_STAT, &stat); if (ret) return -EIO; if (stat) return sprintf(buf, "spi\n"); return sprintf(buf, "i2c\n"); } static IIO_DEVICE_ATTR(bus_type, 0444, adt7316_show_bus_type, NULL, 0); static struct attribute *adt7316_attributes[] = { &iio_dev_attr_all_modes.dev_attr.attr, &iio_dev_attr_mode.dev_attr.attr, &iio_dev_attr_enabled.dev_attr.attr, &iio_dev_attr_ad_channel.dev_attr.attr, &iio_dev_attr_all_ad_channels.dev_attr.attr, &iio_dev_attr_disable_averaging.dev_attr.attr, &iio_dev_attr_enable_smbus_timeout.dev_attr.attr, &iio_dev_attr_powerdown.dev_attr.attr, &iio_dev_attr_fast_ad_clock.dev_attr.attr, &iio_dev_attr_da_high_resolution.dev_attr.attr, &iio_dev_attr_enable_proportion_DACA.dev_attr.attr, &iio_dev_attr_enable_proportion_DACB.dev_attr.attr, &iio_dev_attr_DAC_2Vref_channels_mask.dev_attr.attr, &iio_dev_attr_DAC_update_mode.dev_attr.attr, &iio_dev_attr_all_DAC_update_modes.dev_attr.attr, &iio_dev_attr_update_DAC.dev_attr.attr, &iio_dev_attr_DA_AB_Vref_bypass.dev_attr.attr, &iio_dev_attr_DA_CD_Vref_bypass.dev_attr.attr, &iio_dev_attr_DAC_internal_Vref.dev_attr.attr, &iio_dev_attr_VDD.dev_attr.attr, &iio_dev_attr_in_temp.dev_attr.attr, &iio_dev_attr_ex_temp.dev_attr.attr, &iio_dev_attr_in_temp_offset.dev_attr.attr, &iio_dev_attr_ex_temp_offset.dev_attr.attr, &iio_dev_attr_in_analog_temp_offset.dev_attr.attr, &iio_dev_attr_ex_analog_temp_offset.dev_attr.attr, &iio_dev_attr_DAC_A.dev_attr.attr, &iio_dev_attr_DAC_B.dev_attr.attr, &iio_dev_attr_DAC_C.dev_attr.attr, &iio_dev_attr_DAC_D.dev_attr.attr, &iio_dev_attr_device_id.dev_attr.attr, &iio_dev_attr_manufactorer_id.dev_attr.attr, &iio_dev_attr_device_rev.dev_attr.attr, &iio_dev_attr_bus_type.dev_attr.attr, NULL, }; static const struct attribute_group adt7316_attribute_group = { .attrs = adt7316_attributes, }; static struct attribute *adt7516_attributes[] = { &iio_dev_attr_all_modes.dev_attr.attr, &iio_dev_attr_mode.dev_attr.attr, &iio_dev_attr_select_ex_temp.dev_attr.attr, &iio_dev_attr_enabled.dev_attr.attr, &iio_dev_attr_ad_channel.dev_attr.attr, &iio_dev_attr_all_ad_channels.dev_attr.attr, &iio_dev_attr_disable_averaging.dev_attr.attr, &iio_dev_attr_enable_smbus_timeout.dev_attr.attr, &iio_dev_attr_powerdown.dev_attr.attr, &iio_dev_attr_fast_ad_clock.dev_attr.attr, &iio_dev_attr_AIN_internal_Vref.dev_attr.attr, &iio_dev_attr_da_high_resolution.dev_attr.attr, &iio_dev_attr_enable_proportion_DACA.dev_attr.attr, &iio_dev_attr_enable_proportion_DACB.dev_attr.attr, &iio_dev_attr_DAC_2Vref_channels_mask.dev_attr.attr, &iio_dev_attr_DAC_update_mode.dev_attr.attr, &iio_dev_attr_all_DAC_update_modes.dev_attr.attr, &iio_dev_attr_update_DAC.dev_attr.attr, &iio_dev_attr_DAC_internal_Vref.dev_attr.attr, &iio_dev_attr_VDD.dev_attr.attr, &iio_dev_attr_in_temp.dev_attr.attr, &iio_dev_attr_ex_temp_AIN1.dev_attr.attr, &iio_dev_attr_AIN2.dev_attr.attr, &iio_dev_attr_AIN3.dev_attr.attr, &iio_dev_attr_AIN4.dev_attr.attr, &iio_dev_attr_in_temp_offset.dev_attr.attr, &iio_dev_attr_ex_temp_offset.dev_attr.attr, &iio_dev_attr_in_analog_temp_offset.dev_attr.attr, &iio_dev_attr_ex_analog_temp_offset.dev_attr.attr, &iio_dev_attr_DAC_A.dev_attr.attr, &iio_dev_attr_DAC_B.dev_attr.attr, &iio_dev_attr_DAC_C.dev_attr.attr, &iio_dev_attr_DAC_D.dev_attr.attr, &iio_dev_attr_device_id.dev_attr.attr, &iio_dev_attr_manufactorer_id.dev_attr.attr, &iio_dev_attr_device_rev.dev_attr.attr, &iio_dev_attr_bus_type.dev_attr.attr, NULL, }; static const struct attribute_group adt7516_attribute_group = { .attrs = adt7516_attributes, }; static irqreturn_t adt7316_event_handler(int irq, void *private) { struct iio_dev *indio_dev = private; struct adt7316_chip_info *chip = iio_priv(indio_dev); u8 stat1, stat2; int ret; s64 time; ret = chip->bus.read(chip->bus.client, ADT7316_INT_STAT1, &stat1); if (!ret) { if ((chip->id & ID_FAMILY_MASK) != ID_ADT75XX) stat1 &= 0x1F; time = iio_get_time_ns(indio_dev); if (stat1 & BIT(0)) iio_push_event(indio_dev, IIO_UNMOD_EVENT_CODE(IIO_TEMP, 0, IIO_EV_TYPE_THRESH, IIO_EV_DIR_RISING), time); if (stat1 & BIT(1)) iio_push_event(indio_dev, IIO_UNMOD_EVENT_CODE(IIO_TEMP, 0, IIO_EV_TYPE_THRESH, IIO_EV_DIR_FALLING), time); if (stat1 & BIT(2)) iio_push_event(indio_dev, IIO_UNMOD_EVENT_CODE(IIO_TEMP, 1, IIO_EV_TYPE_THRESH, IIO_EV_DIR_RISING), time); if (stat1 & BIT(3)) iio_push_event(indio_dev, IIO_UNMOD_EVENT_CODE(IIO_TEMP, 1, IIO_EV_TYPE_THRESH, IIO_EV_DIR_FALLING), time); if (stat1 & BIT(5)) iio_push_event(indio_dev, IIO_UNMOD_EVENT_CODE(IIO_VOLTAGE, 1, IIO_EV_TYPE_THRESH, IIO_EV_DIR_EITHER), time); if (stat1 & BIT(6)) iio_push_event(indio_dev, IIO_UNMOD_EVENT_CODE(IIO_VOLTAGE, 2, IIO_EV_TYPE_THRESH, IIO_EV_DIR_EITHER), time); if (stat1 & BIT(7)) iio_push_event(indio_dev, IIO_UNMOD_EVENT_CODE(IIO_VOLTAGE, 3, IIO_EV_TYPE_THRESH, IIO_EV_DIR_EITHER), time); } ret = chip->bus.read(chip->bus.client, ADT7316_INT_STAT2, &stat2); if (!ret) { if (stat2 & ADT7316_INT_MASK2_VDD) iio_push_event(indio_dev, IIO_UNMOD_EVENT_CODE(IIO_VOLTAGE, 0, IIO_EV_TYPE_THRESH, IIO_EV_DIR_RISING), iio_get_time_ns(indio_dev)); } return IRQ_HANDLED; } static int adt7316_setup_irq(struct iio_dev *indio_dev) { struct adt7316_chip_info *chip = iio_priv(indio_dev); int irq_type, ret; irq_type = irqd_get_trigger_type(irq_get_irq_data(chip->bus.irq)); switch (irq_type) { case IRQF_TRIGGER_HIGH: case IRQF_TRIGGER_RISING: break; case IRQF_TRIGGER_LOW: case IRQF_TRIGGER_FALLING: break; default: dev_info(&indio_dev->dev, "mode %d unsupported, using IRQF_TRIGGER_LOW\n", irq_type); irq_type = IRQF_TRIGGER_LOW; break; } ret = devm_request_threaded_irq(&indio_dev->dev, chip->bus.irq, NULL, adt7316_event_handler, irq_type | IRQF_ONESHOT, indio_dev->name, indio_dev); if (ret) { dev_err(&indio_dev->dev, "failed to request irq %d\n", chip->bus.irq); return ret; } if (irq_type & IRQF_TRIGGER_HIGH) chip->config1 |= ADT7316_INT_POLARITY; return 0; } /* * Show mask of enabled interrupts in Hex. */ static ssize_t adt7316_show_int_mask(struct device *dev, struct device_attribute *attr, char *buf) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); return sprintf(buf, "0x%x\n", chip->int_mask); } /* * Set 1 to the mask in Hex to enabled interrupts. */ static ssize_t adt7316_set_int_mask(struct device *dev, struct device_attribute *attr, const char *buf, size_t len) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); u16 data; int ret; u8 mask; ret = kstrtou16(buf, 16, &data); if (ret || data >= ADT7316_VDD_INT_MASK + 1) return -EINVAL; if (data & ADT7316_VDD_INT_MASK) mask = 0; /* enable vdd int */ else mask = ADT7316_INT_MASK2_VDD; /* disable vdd int */ ret = chip->bus.write(chip->bus.client, ADT7316_INT_MASK2, mask); if (!ret) { chip->int_mask &= ~ADT7316_VDD_INT_MASK; chip->int_mask |= data & ADT7316_VDD_INT_MASK; } if (data & ADT7316_TEMP_AIN_INT_MASK) { if ((chip->id & ID_FAMILY_MASK) == ID_ADT73XX) /* mask in reg is opposite, set 1 to disable */ mask = (~data) & ADT7316_TEMP_INT_MASK; else /* mask in reg is opposite, set 1 to disable */ mask = (~data) & ADT7316_TEMP_AIN_INT_MASK; } ret = chip->bus.write(chip->bus.client, ADT7316_INT_MASK1, mask); chip->int_mask = mask; return len; } static inline ssize_t adt7316_show_ad_bound(struct device *dev, struct device_attribute *attr, char *buf) { struct iio_dev_attr *this_attr = to_iio_dev_attr(attr); struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); u8 val; int data; int ret; if ((chip->id & ID_FAMILY_MASK) == ID_ADT73XX && this_attr->address > ADT7316_EX_TEMP_LOW) return -EPERM; ret = chip->bus.read(chip->bus.client, this_attr->address, &val); if (ret) return -EIO; data = (int)val; if (!((chip->id & ID_FAMILY_MASK) == ID_ADT75XX && (chip->config1 & ADT7516_SEL_AIN1_2_EX_TEMP_MASK) == 0)) { if (data & 0x80) data -= 256; } return sprintf(buf, "%d\n", data); } static inline ssize_t adt7316_set_ad_bound(struct device *dev, struct device_attribute *attr, const char *buf, size_t len) { struct iio_dev_attr *this_attr = to_iio_dev_attr(attr); struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); int data; u8 val; int ret; if ((chip->id & ID_FAMILY_MASK) == ID_ADT73XX && this_attr->address > ADT7316_EX_TEMP_LOW) return -EPERM; ret = kstrtoint(buf, 10, &data); if (ret) return -EINVAL; if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX && (chip->config1 & ADT7516_SEL_AIN1_2_EX_TEMP_MASK) == 0) { if (data > 255 || data < 0) return -EINVAL; } else { if (data > 127 || data < -128) return -EINVAL; if (data < 0) data += 256; } val = (u8)data; ret = chip->bus.write(chip->bus.client, this_attr->address, val); if (ret) return -EIO; return len; } static ssize_t adt7316_show_int_enabled(struct device *dev, struct device_attribute *attr, char *buf) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); return sprintf(buf, "%d\n", !!(chip->config1 & ADT7316_INT_EN)); } static ssize_t adt7316_set_int_enabled(struct device *dev, struct device_attribute *attr, const char *buf, size_t len) { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); u8 config1; int ret; config1 = chip->config1 & (~ADT7316_INT_EN); if (buf[0] == '1') config1 |= ADT7316_INT_EN; ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG1, config1); if (ret) return -EIO; chip->config1 = config1; return len; } static IIO_DEVICE_ATTR(int_mask, 0644, adt7316_show_int_mask, adt7316_set_int_mask, 0); static IIO_DEVICE_ATTR(in_temp_high_value, 0644, adt7316_show_ad_bound, adt7316_set_ad_bound, ADT7316_IN_TEMP_HIGH); static IIO_DEVICE_ATTR(in_temp_low_value, 0644, adt7316_show_ad_bound, adt7316_set_ad_bound, ADT7316_IN_TEMP_LOW); static IIO_DEVICE_ATTR(ex_temp_high_value, 0644, adt7316_show_ad_bound, adt7316_set_ad_bound, ADT7316_EX_TEMP_HIGH); static IIO_DEVICE_ATTR(ex_temp_low_value, 0644, adt7316_show_ad_bound, adt7316_set_ad_bound, ADT7316_EX_TEMP_LOW); /* NASTY duplication to be fixed */ static IIO_DEVICE_ATTR(ex_temp_ain1_high_value, 0644, adt7316_show_ad_bound, adt7316_set_ad_bound, ADT7316_EX_TEMP_HIGH); static IIO_DEVICE_ATTR(ex_temp_ain1_low_value, 0644, adt7316_show_ad_bound, adt7316_set_ad_bound, ADT7316_EX_TEMP_LOW); static IIO_DEVICE_ATTR(ain2_high_value, 0644, adt7316_show_ad_bound, adt7316_set_ad_bound, ADT7516_AIN2_HIGH); static IIO_DEVICE_ATTR(ain2_low_value, 0644, adt7316_show_ad_bound, adt7316_set_ad_bound, ADT7516_AIN2_LOW); static IIO_DEVICE_ATTR(ain3_high_value, 0644, adt7316_show_ad_bound, adt7316_set_ad_bound, ADT7516_AIN3_HIGH); static IIO_DEVICE_ATTR(ain3_low_value, 0644, adt7316_show_ad_bound, adt7316_set_ad_bound, ADT7516_AIN3_LOW); static IIO_DEVICE_ATTR(ain4_high_value, 0644, adt7316_show_ad_bound, adt7316_set_ad_bound, ADT7516_AIN4_HIGH); static IIO_DEVICE_ATTR(ain4_low_value, 0644, adt7316_show_ad_bound, adt7316_set_ad_bound, ADT7516_AIN4_LOW); static IIO_DEVICE_ATTR(int_enabled, 0644, adt7316_show_int_enabled, adt7316_set_int_enabled, 0); static struct attribute *adt7316_event_attributes[] = { &iio_dev_attr_int_mask.dev_attr.attr, &iio_dev_attr_in_temp_high_value.dev_attr.attr, &iio_dev_attr_in_temp_low_value.dev_attr.attr, &iio_dev_attr_ex_temp_high_value.dev_attr.attr, &iio_dev_attr_ex_temp_low_value.dev_attr.attr, &iio_dev_attr_int_enabled.dev_attr.attr, NULL, }; static const struct attribute_group adt7316_event_attribute_group = { .attrs = adt7316_event_attributes, .name = "events", }; static struct attribute *adt7516_event_attributes[] = { &iio_dev_attr_int_mask.dev_attr.attr, &iio_dev_attr_in_temp_high_value.dev_attr.attr, &iio_dev_attr_in_temp_low_value.dev_attr.attr, &iio_dev_attr_ex_temp_ain1_high_value.dev_attr.attr, &iio_dev_attr_ex_temp_ain1_low_value.dev_attr.attr, &iio_dev_attr_ain2_high_value.dev_attr.attr, &iio_dev_attr_ain2_low_value.dev_attr.attr, &iio_dev_attr_ain3_high_value.dev_attr.attr, &iio_dev_attr_ain3_low_value.dev_attr.attr, &iio_dev_attr_ain4_high_value.dev_attr.attr, &iio_dev_attr_ain4_low_value.dev_attr.attr, &iio_dev_attr_int_enabled.dev_attr.attr, NULL, }; static const struct attribute_group adt7516_event_attribute_group = { .attrs = adt7516_event_attributes, .name = "events", }; #ifdef CONFIG_PM_SLEEP static int adt7316_disable(struct device *dev) { struct iio_dev *dev_info = dev_get_drvdata(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); return _adt7316_store_enabled(chip, 0); } static int adt7316_enable(struct device *dev) { struct iio_dev *dev_info = dev_get_drvdata(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); return _adt7316_store_enabled(chip, 1); } EXPORT_SYMBOL_GPL(adt7316_pm_ops); SIMPLE_DEV_PM_OPS(adt7316_pm_ops, adt7316_disable, adt7316_enable); #endif static const struct iio_info adt7316_info = { .attrs = &adt7316_attribute_group, .event_attrs = &adt7316_event_attribute_group, }; static const struct iio_info adt7516_info = { .attrs = &adt7516_attribute_group, .event_attrs = &adt7516_event_attribute_group, }; /* * device probe and remove */ int adt7316_probe(struct device *dev, struct adt7316_bus *bus, const char *name) { struct adt7316_chip_info *chip; struct iio_dev *indio_dev; int ret; indio_dev = devm_iio_device_alloc(dev, sizeof(*chip)); if (!indio_dev) return -ENOMEM; chip = iio_priv(indio_dev); /* this is only used for device removal purposes */ dev_set_drvdata(dev, indio_dev); chip->bus = *bus; if (name[4] == '3') chip->id = ID_ADT7316 + (name[6] - '6'); else if (name[4] == '5') chip->id = ID_ADT7516 + (name[6] - '6'); else return -ENODEV; if (chip->id == ID_ADT7316 || chip->id == ID_ADT7516) chip->dac_bits = 12; else if (chip->id == ID_ADT7317 || chip->id == ID_ADT7517) chip->dac_bits = 10; else chip->dac_bits = 8; chip->ldac_pin = devm_gpiod_get_optional(dev, "adi,ldac", GPIOD_OUT_LOW); if (IS_ERR(chip->ldac_pin)) { ret = PTR_ERR(chip->ldac_pin); dev_err(dev, "Failed to request ldac GPIO: %d\n", ret); return ret; } if (!chip->ldac_pin) { chip->config3 |= ADT7316_DA_EN_VIA_DAC_LDAC; if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX) chip->config1 |= ADT7516_SEL_AIN3; } chip->int_mask = ADT7316_TEMP_INT_MASK | ADT7316_VDD_INT_MASK; if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX) chip->int_mask |= ADT7516_AIN_INT_MASK; indio_dev->dev.parent = dev; if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX) indio_dev->info = &adt7516_info; else indio_dev->info = &adt7316_info; indio_dev->name = name; indio_dev->modes = INDIO_DIRECT_MODE; if (chip->bus.irq > 0) { ret = adt7316_setup_irq(indio_dev); if (ret) return ret; } ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG1, chip->config1); if (ret) return -EIO; ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG3, chip->config3); if (ret) return -EIO; ret = devm_iio_device_register(dev, indio_dev); if (ret) return ret; dev_info(dev, "%s temperature sensor, ADC and DAC registered.\n", indio_dev->name); return 0; } EXPORT_SYMBOL(adt7316_probe); MODULE_AUTHOR("Sonic Zhang <sonic.zhang@analog.com>"); MODULE_DESCRIPTION("Analog Devices ADT7316/7/8 and ADT7516/7/9 digital temperature sensor, ADC and DAC driver"); MODULE_LICENSE("GPL v2");
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