| /* |
| * ADT7316 digital temperature sensor driver supporting ADT7316/7/8 ADT7516/7/9 |
| * |
| * |
| * Copyright 2010 Analog Devices Inc. |
| * |
| * Licensed under the GPL-2 or later. |
| */ |
| |
| #include <linux/interrupt.h> |
| #include <linux/gpio.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 "../iio.h" |
| #include "../events.h" |
| #include "../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_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_LDAC_CONFIG 0x1B |
| #define ADT7316_DAC_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_LDCA 0x4 |
| #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_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 specifc information |
| */ |
| |
| struct adt7316_chip_info { |
| struct adt7316_bus bus; |
| u16 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 specifc 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_get_drvdata(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_get_drvdata(dev); |
| struct adt7316_chip_info *chip = iio_priv(dev_info); |
| int enable; |
| |
| if (!memcmp(buf, "1", 1)) |
| enable = 1; |
| else |
| enable = 0; |
| |
| if (_adt7316_store_enabled(chip, enable) < 0) |
| return -EIO; |
| else |
| return len; |
| } |
| |
| static IIO_DEVICE_ATTR(enabled, S_IRUGO | S_IWUSR, |
| 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_get_drvdata(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_get_drvdata(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 (!memcmp(buf, "1", 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, S_IRUGO | S_IWUSR, |
| 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_get_drvdata(dev); |
| struct adt7316_chip_info *chip = iio_priv(dev_info); |
| |
| if (chip->config2 & ADT7316_AD_SINGLE_CH_MODE) |
| return sprintf(buf, "single_channel\n"); |
| else |
| 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_get_drvdata(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, S_IRUGO | S_IWUSR, |
| 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, S_IRUGO, 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_get_drvdata(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"); |
| else |
| 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"); |
| else |
| return sprintf(buf, "N/A\n"); |
| case ADT7516_AD_SINGLE_CH_AIN3: |
| if (chip->config1 & ADT7516_SEL_AIN3) |
| return sprintf(buf, "4 - AIN3\n"); |
| else |
| 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_get_drvdata(dev); |
| struct adt7316_chip_info *chip = iio_priv(dev_info); |
| u8 config2; |
| unsigned long data = 0; |
| int ret; |
| |
| if (!(chip->config2 & ADT7316_AD_SINGLE_CH_MODE)) |
| return -EPERM; |
| |
| ret = strict_strtoul(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, S_IRUGO | S_IWUSR, |
| 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_get_drvdata(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"); |
| else |
| return sprintf(buf, "0 - VDD\n1 - Internal Temperature\n" |
| "2 - External Temperature\n"); |
| } |
| |
| static IIO_DEVICE_ATTR(all_ad_channels, S_IRUGO, |
| 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_get_drvdata(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_get_drvdata(dev); |
| struct adt7316_chip_info *chip = iio_priv(dev_info); |
| u8 config2; |
| int ret; |
| |
| config2 = chip->config2 & (~ADT7316_DISABLE_AVERAGING); |
| if (!memcmp(buf, "1", 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, S_IRUGO | S_IWUSR, |
| 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_get_drvdata(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_get_drvdata(dev); |
| struct adt7316_chip_info *chip = iio_priv(dev_info); |
| u8 config2; |
| int ret; |
| |
| config2 = chip->config2 & (~ADT7316_EN_SMBUS_TIMEOUT); |
| if (!memcmp(buf, "1", 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, S_IRUGO | S_IWUSR, |
| adt7316_show_enable_smbus_timeout, |
| adt7316_store_enable_smbus_timeout, |
| 0); |
| |
| |
| static ssize_t adt7316_store_reset(struct device *dev, |
| struct device_attribute *attr, |
| const char *buf, |
| size_t len) |
| { |
| struct iio_dev *dev_info = dev_get_drvdata(dev); |
| struct adt7316_chip_info *chip = iio_priv(dev_info); |
| u8 config2; |
| int ret; |
| |
| config2 = chip->config2 | ADT7316_RESET; |
| |
| ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG2, config2); |
| if (ret) |
| return -EIO; |
| |
| return len; |
| } |
| |
| static IIO_DEVICE_ATTR(reset, S_IWUSR, |
| NULL, |
| adt7316_store_reset, |
| 0); |
| |
| static ssize_t adt7316_show_powerdown(struct device *dev, |
| struct device_attribute *attr, |
| char *buf) |
| { |
| struct iio_dev *dev_info = dev_get_drvdata(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_get_drvdata(dev); |
| struct adt7316_chip_info *chip = iio_priv(dev_info); |
| u8 config1; |
| int ret; |
| |
| config1 = chip->config1 & (~ADT7316_PD); |
| if (!memcmp(buf, "1", 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, S_IRUGO | S_IWUSR, |
| 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_get_drvdata(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_get_drvdata(dev); |
| struct adt7316_chip_info *chip = iio_priv(dev_info); |
| u8 config3; |
| int ret; |
| |
| config3 = chip->config3 & (~ADT7316_ADCLK_22_5); |
| if (!memcmp(buf, "1", 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, S_IRUGO | S_IWUSR, |
| 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_get_drvdata(dev); |
| struct adt7316_chip_info *chip = iio_priv(dev_info); |
| |
| if (chip->config3 & ADT7316_DA_HIGH_RESOLUTION) { |
| if (chip->id == ID_ADT7316 || chip->id == ID_ADT7516) |
| return sprintf(buf, "1 (12 bits)\n"); |
| else if (chip->id == ID_ADT7317 || chip->id == ID_ADT7517) |
| 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_get_drvdata(dev); |
| struct adt7316_chip_info *chip = iio_priv(dev_info); |
| u8 config3; |
| int ret; |
| |
| chip->dac_bits = 8; |
| |
| if (!memcmp(buf, "1", 1)) { |
| config3 = chip->config3 | ADT7316_DA_HIGH_RESOLUTION; |
| 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 |
| config3 = chip->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, S_IRUGO | S_IWUSR, |
| 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_get_drvdata(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_get_drvdata(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 (memcmp(buf, "1", 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, S_IRUGO | S_IWUSR, |
| 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_get_drvdata(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_get_drvdata(dev); |
| struct adt7316_chip_info *chip = iio_priv(dev_info); |
| u8 config3; |
| int ret; |
| |
| config3 = chip->config3 & (~ADT7316_EN_IN_TEMP_PROP_DACA); |
| if (!memcmp(buf, "1", 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, S_IRUGO | S_IWUSR, |
| 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_get_drvdata(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_get_drvdata(dev); |
| struct adt7316_chip_info *chip = iio_priv(dev_info); |
| u8 config3; |
| int ret; |
| |
| config3 = chip->config3 & (~ADT7316_EN_EX_TEMP_PROP_DACB); |
| if (!memcmp(buf, "1", 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, S_IRUGO | S_IWUSR, |
| 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_get_drvdata(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_get_drvdata(dev); |
| struct adt7316_chip_info *chip = iio_priv(dev_info); |
| u8 dac_config; |
| unsigned long data = 0; |
| int ret; |
| |
| ret = strict_strtoul(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, S_IRUGO | S_IWUSR, |
| 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_get_drvdata(dev); |
| struct adt7316_chip_info *chip = iio_priv(dev_info); |
| |
| if (!(chip->config3 & ADT7316_DA_EN_VIA_DAC_LDCA)) |
| return sprintf(buf, "manual\n"); |
| else { |
| 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_get_drvdata(dev); |
| struct adt7316_chip_info *chip = iio_priv(dev_info); |
| u8 dac_config; |
| unsigned long data; |
| int ret; |
| |
| if (!(chip->config3 & ADT7316_DA_EN_VIA_DAC_LDCA)) |
| return -EPERM; |
| |
| ret = strict_strtoul(buf, 10, &data); |
| if (ret || data > ADT7316_DA_EN_MODE_MASK) |
| return -EINVAL; |
| |
| dac_config = chip->dac_config & (~ADT7316_DA_EN_MODE_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_update_mode, S_IRUGO | S_IWUSR, |
| 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_get_drvdata(dev); |
| struct adt7316_chip_info *chip = iio_priv(dev_info); |
| |
| if (chip->config3 & ADT7316_DA_EN_VIA_DAC_LDCA) |
| 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"); |
| else |
| return sprintf(buf, "manual\n"); |
| } |
| |
| static IIO_DEVICE_ATTR(all_DAC_update_modes, S_IRUGO, |
| 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_get_drvdata(dev); |
| struct adt7316_chip_info *chip = iio_priv(dev_info); |
| u8 ldac_config; |
| unsigned long data; |
| int ret; |
| |
| if (chip->config3 & ADT7316_DA_EN_VIA_DAC_LDCA) { |
| if ((chip->dac_config & ADT7316_DA_EN_MODE_MASK) != |
| ADT7316_DA_EN_MODE_LDAC) |
| return -EPERM; |
| |
| ret = strict_strtoul(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 { |
| gpio_set_value(chip->ldac_pin, 0); |
| gpio_set_value(chip->ldac_pin, 1); |
| } |
| |
| return len; |
| } |
| |
| static IIO_DEVICE_ATTR(update_DAC, S_IRUGO | S_IWUSR, |
| 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_get_drvdata(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->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_get_drvdata(dev); |
| struct adt7316_chip_info *chip = iio_priv(dev_info); |
| u8 dac_config; |
| int ret; |
| |
| if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX) |
| return -EPERM; |
| |
| dac_config = chip->dac_config & (~ADT7316_VREF_BYPASS_DAC_AB); |
| if (!memcmp(buf, "1", 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, S_IRUGO | S_IWUSR, |
| 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_get_drvdata(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->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_get_drvdata(dev); |
| struct adt7316_chip_info *chip = iio_priv(dev_info); |
| u8 dac_config; |
| int ret; |
| |
| if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX) |
| return -EPERM; |
| |
| dac_config = chip->dac_config & (~ADT7316_VREF_BYPASS_DAC_CD); |
| if (!memcmp(buf, "1", 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, S_IRUGO | S_IWUSR, |
| 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_get_drvdata(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->dac_config & ADT7516_DAC_IN_VREF_MASK) >> |
| ADT7516_DAC_IN_VREF_OFFSET); |
| else |
| return sprintf(buf, "%d\n", |
| !!(chip->dac_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_get_drvdata(dev); |
| struct adt7316_chip_info *chip = iio_priv(dev_info); |
| u8 ldac_config; |
| unsigned long data; |
| int ret; |
| |
| if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX) { |
| ret = strict_strtoul(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; |
| else if (data & 0x2) |
| ldac_config |= ADT7516_DAC_CD_IN_VREF; |
| } else { |
| ret = strict_strtoul(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, S_IRUGO | S_IWUSR, |
| 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); |
| else |
| 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_get_drvdata(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, S_IRUGO, 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_get_drvdata(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, S_IRUGO, 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_get_drvdata(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, S_IRUGO, adt7316_show_ex_temp_AIN1, NULL, 0); |
| static IIO_DEVICE_ATTR(ex_temp, S_IRUGO, 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_get_drvdata(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, S_IRUGO, 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_get_drvdata(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, S_IRUGO, 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_get_drvdata(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, S_IRUGO, 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) |
| { |
| long data; |
| u8 val; |
| int ret; |
| |
| ret = strict_strtol(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_get_drvdata(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_get_drvdata(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, S_IRUGO | S_IWUSR, |
| 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_get_drvdata(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_get_drvdata(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, S_IRUGO | S_IWUSR, |
| 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_get_drvdata(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_get_drvdata(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, S_IRUGO | S_IWUSR, |
| 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_get_drvdata(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_get_drvdata(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, S_IRUGO | S_IWUSR, |
| 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; |
| 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; |
| |
| data = (msb << offset) + (lsb & ((1 << offset) - 1)); |
| |
| 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, offset; |
| unsigned long 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 = strict_strtoul(buf, 10, &data); |
| if (ret || data >= (1 << chip->dac_bits)) |
| return -EINVAL; |
| |
| if (chip->dac_bits > 8) { |
| lsb = data & (1 << offset); |
| ret = chip->bus.write(chip->bus.client, |
| ADT7316_DA_DATA_BASE + channel * 2, lsb); |
| 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_get_drvdata(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_get_drvdata(dev); |
| struct adt7316_chip_info *chip = iio_priv(dev_info); |
| |
| return adt7316_store_DAC(chip, 0, buf, len); |
| } |
| |
| static IIO_DEVICE_ATTR(DAC_A, S_IRUGO | S_IWUSR, 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_get_drvdata(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_get_drvdata(dev); |
| struct adt7316_chip_info *chip = iio_priv(dev_info); |
| |
| return adt7316_store_DAC(chip, 1, buf, len); |
| } |
| |
| static IIO_DEVICE_ATTR(DAC_B, S_IRUGO | S_IWUSR, 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_get_drvdata(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_get_drvdata(dev); |
| struct adt7316_chip_info *chip = iio_priv(dev_info); |
| |
| return adt7316_store_DAC(chip, 2, buf, len); |
| } |
| |
| static IIO_DEVICE_ATTR(DAC_C, S_IRUGO | S_IWUSR, 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_get_drvdata(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_get_drvdata(dev); |
| struct adt7316_chip_info *chip = iio_priv(dev_info); |
| |
| return adt7316_store_DAC(chip, 3, buf, len); |
| } |
| |
| static IIO_DEVICE_ATTR(DAC_D, S_IRUGO | S_IWUSR, 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_get_drvdata(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, S_IRUGO, 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_get_drvdata(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, S_IRUGO, |
| 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_get_drvdata(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, S_IRUGO, 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_get_drvdata(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"); |
| else |
| return sprintf(buf, "i2c\n"); |
| } |
| |
| static IIO_DEVICE_ATTR(bus_type, S_IRUGO, 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_reset.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_reset.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_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_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(); |
| if (stat1 & (1 << 0)) |
| iio_push_event(indio_dev, |
| IIO_UNMOD_EVENT_CODE(IIO_TEMP, 0, |
| IIO_EV_TYPE_THRESH, |
| IIO_EV_DIR_RISING), |
| time); |
| if (stat1 & (1 << 1)) |
| iio_push_event(indio_dev, |
| IIO_UNMOD_EVENT_CODE(IIO_TEMP, 0, |
| IIO_EV_TYPE_THRESH, |
| IIO_EV_DIR_FALLING), |
| time); |
| if (stat1 & (1 << 2)) |
| iio_push_event(indio_dev, |
| IIO_UNMOD_EVENT_CODE(IIO_TEMP, 1, |
| IIO_EV_TYPE_THRESH, |
| IIO_EV_DIR_RISING), |
| time); |
| if (stat1 & (1 << 3)) |
| iio_push_event(indio_dev, |
| IIO_UNMOD_EVENT_CODE(IIO_TEMP, 1, |
| IIO_EV_TYPE_THRESH, |
| IIO_EV_DIR_FALLING), |
| time); |
| if (stat1 & (1 << 5)) |
| iio_push_event(indio_dev, |
| IIO_UNMOD_EVENT_CODE(IIO_VOLTAGE, 1, |
| IIO_EV_TYPE_THRESH, |
| IIO_EV_DIR_EITHER), |
| time); |
| if (stat1 & (1 << 6)) |
| iio_push_event(indio_dev, |
| IIO_UNMOD_EVENT_CODE(IIO_VOLTAGE, 2, |
| IIO_EV_TYPE_THRESH, |
| IIO_EV_DIR_EITHER), |
| time); |
| if (stat1 & (1 << 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()); |
| } |
| |
| return IRQ_HANDLED; |
| } |
| |
| /* |
| * 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_get_drvdata(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_get_drvdata(dev); |
| struct adt7316_chip_info *chip = iio_priv(dev_info); |
| unsigned long data; |
| int ret; |
| u8 mask; |
| |
| ret = strict_strtoul(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_get_drvdata(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_get_drvdata(dev); |
| struct adt7316_chip_info *chip = iio_priv(dev_info); |
| long data; |
| u8 val; |
| int ret; |
| |
| if ((chip->id & ID_FAMILY_MASK) == ID_ADT73XX && |
| this_attr->address > ADT7316_EX_TEMP_LOW) |
| return -EPERM; |
| |
| ret = strict_strtol(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_get_drvdata(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_get_drvdata(dev); |
| struct adt7316_chip_info *chip = iio_priv(dev_info); |
| u8 config1; |
| int ret; |
| |
| config1 = chip->config1 & (~ADT7316_INT_EN); |
| if (!memcmp(buf, "1", 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, |
| S_IRUGO | S_IWUSR, |
| adt7316_show_int_mask, adt7316_set_int_mask, |
| 0); |
| static IIO_DEVICE_ATTR(in_temp_high_value, |
| S_IRUGO | S_IWUSR, |
| adt7316_show_ad_bound, adt7316_set_ad_bound, |
| ADT7316_IN_TEMP_HIGH); |
| static IIO_DEVICE_ATTR(in_temp_low_value, |
| S_IRUGO | S_IWUSR, |
| adt7316_show_ad_bound, adt7316_set_ad_bound, |
| ADT7316_IN_TEMP_LOW); |
| static IIO_DEVICE_ATTR(ex_temp_high_value, |
| S_IRUGO | S_IWUSR, |
| adt7316_show_ad_bound, adt7316_set_ad_bound, |
| ADT7316_EX_TEMP_HIGH); |
| static IIO_DEVICE_ATTR(ex_temp_low_value, |
| S_IRUGO | S_IWUSR, |
| 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, |
| S_IRUGO | S_IWUSR, |
| adt7316_show_ad_bound, adt7316_set_ad_bound, |
| ADT7316_EX_TEMP_HIGH); |
| static IIO_DEVICE_ATTR(ex_temp_ain1_low_value, |
| S_IRUGO | S_IWUSR, |
| adt7316_show_ad_bound, adt7316_set_ad_bound, |
| ADT7316_EX_TEMP_LOW); |
| static IIO_DEVICE_ATTR(ain2_high_value, |
| S_IRUGO | S_IWUSR, |
| adt7316_show_ad_bound, adt7316_set_ad_bound, |
| ADT7516_AIN2_HIGH); |
| static IIO_DEVICE_ATTR(ain2_low_value, |
| S_IRUGO | S_IWUSR, |
| adt7316_show_ad_bound, adt7316_set_ad_bound, |
| ADT7516_AIN2_LOW); |
| static IIO_DEVICE_ATTR(ain3_high_value, |
| S_IRUGO | S_IWUSR, |
| adt7316_show_ad_bound, adt7316_set_ad_bound, |
| ADT7516_AIN3_HIGH); |
| static IIO_DEVICE_ATTR(ain3_low_value, |
| S_IRUGO | S_IWUSR, |
| adt7316_show_ad_bound, adt7316_set_ad_bound, |
| ADT7516_AIN3_LOW); |
| static IIO_DEVICE_ATTR(ain4_high_value, |
| S_IRUGO | S_IWUSR, |
| adt7316_show_ad_bound, adt7316_set_ad_bound, |
| ADT7516_AIN4_HIGH); |
| static IIO_DEVICE_ATTR(ain4_low_value, |
| S_IRUGO | S_IWUSR, |
| adt7316_show_ad_bound, adt7316_set_ad_bound, |
| ADT7516_AIN4_LOW); |
| static IIO_DEVICE_ATTR(int_enabled, |
| S_IRUGO | S_IWUSR, |
| 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 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 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); |
| } |
| |
| SIMPLE_DEV_PM_OPS(adt7316_pm_ops, adt7316_disable, adt7316_enable); |
| EXPORT_SYMBOL_GPL(adt7316_pm_ops); |
| #endif |
| |
| static const struct iio_info adt7316_info = { |
| .attrs = &adt7316_attribute_group, |
| .event_attrs = &adt7316_event_attribute_group, |
| .driver_module = THIS_MODULE, |
| }; |
| |
| static const struct iio_info adt7516_info = { |
| .attrs = &adt7516_attribute_group, |
| .event_attrs = &adt7516_event_attribute_group, |
| .driver_module = THIS_MODULE, |
| }; |
| |
| /* |
| * device probe and remove |
| */ |
| int __devinit adt7316_probe(struct device *dev, struct adt7316_bus *bus, |
| const char *name) |
| { |
| struct adt7316_chip_info *chip; |
| struct iio_dev *indio_dev; |
| unsigned short *adt7316_platform_data = dev->platform_data; |
| int ret = 0; |
| |
| indio_dev = iio_allocate_device(sizeof(*chip)); |
| if (indio_dev == NULL) { |
| ret = -ENOMEM; |
| goto error_ret; |
| } |
| 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; |
| |
| chip->ldac_pin = adt7316_platform_data[1]; |
| if (chip->ldac_pin) { |
| chip->config3 |= ADT7316_DA_EN_VIA_DAC_LDCA; |
| 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) { |
| if (adt7316_platform_data[0]) |
| chip->bus.irq_flags = adt7316_platform_data[0]; |
| |
| ret = request_threaded_irq(chip->bus.irq, |
| NULL, |
| &adt7316_event_handler, |
| chip->bus.irq_flags | IRQF_ONESHOT, |
| indio_dev->name, |
| indio_dev); |
| if (ret) |
| goto error_free_dev; |
| |
| if (chip->bus.irq_flags & IRQF_TRIGGER_HIGH) |
| chip->config1 |= ADT7316_INT_POLARITY; |
| } |
| |
| ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG1, chip->config1); |
| if (ret) { |
| ret = -EIO; |
| goto error_unreg_irq; |
| } |
| |
| ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG3, chip->config3); |
| if (ret) { |
| ret = -EIO; |
| goto error_unreg_irq; |
| } |
| |
| ret = iio_device_register(indio_dev); |
| if (ret) |
| goto error_unreg_irq; |
| |
| dev_info(dev, "%s temperature sensor, ADC and DAC registered.\n", |
| indio_dev->name); |
| |
| return 0; |
| |
| error_unreg_irq: |
| free_irq(chip->bus.irq, indio_dev); |
| error_free_dev: |
| iio_free_device(indio_dev); |
| error_ret: |
| return ret; |
| } |
| EXPORT_SYMBOL(adt7316_probe); |
| |
| int __devexit adt7316_remove(struct device *dev) |
| { |
| struct iio_dev *indio_dev = dev_get_drvdata(dev); |
| struct adt7316_chip_info *chip = iio_priv(indio_dev); |
| |
| iio_device_unregister(indio_dev); |
| if (chip->bus.irq) |
| free_irq(chip->bus.irq, indio_dev); |
| iio_free_device(indio_dev); |
| |
| return 0; |
| } |
| EXPORT_SYMBOL(adt7316_remove); |
| |
| 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"); |