// SPDX-License-Identifier: GPL-2.0+ /* * ADIS16240 Programmable Impact Sensor and Recorder driver * * Copyright 2010 Analog Devices Inc. */ #include <linux/device.h> #include <linux/kernel.h> #include <linux/spi/spi.h> #include <linux/sysfs.h> #include <linux/module.h> #include <linux/iio/iio.h> #include <linux/iio/sysfs.h> #include <linux/iio/imu/adis.h> #define ADIS16240_STARTUP_DELAY … /* Flash memory write count */ #define ADIS16240_FLASH_CNT … /* Output, power supply */ #define ADIS16240_SUPPLY_OUT … /* Output, x-axis accelerometer */ #define ADIS16240_XACCL_OUT … /* Output, y-axis accelerometer */ #define ADIS16240_YACCL_OUT … /* Output, z-axis accelerometer */ #define ADIS16240_ZACCL_OUT … /* Output, auxiliary ADC input */ #define ADIS16240_AUX_ADC … /* Output, temperature */ #define ADIS16240_TEMP_OUT … /* Output, x-axis acceleration peak */ #define ADIS16240_XPEAK_OUT … /* Output, y-axis acceleration peak */ #define ADIS16240_YPEAK_OUT … /* Output, z-axis acceleration peak */ #define ADIS16240_ZPEAK_OUT … /* Output, sum-of-squares acceleration peak */ #define ADIS16240_XYZPEAK_OUT … /* Output, Capture Buffer 1, X and Y acceleration */ #define ADIS16240_CAPT_BUF1 … /* Output, Capture Buffer 2, Z acceleration */ #define ADIS16240_CAPT_BUF2 … /* Diagnostic, error flags */ #define ADIS16240_DIAG_STAT … /* Diagnostic, event counter */ #define ADIS16240_EVNT_CNTR … /* Diagnostic, check sum value from firmware test */ #define ADIS16240_CHK_SUM … /* Calibration, x-axis acceleration offset adjustment */ #define ADIS16240_XACCL_OFF … /* Calibration, y-axis acceleration offset adjustment */ #define ADIS16240_YACCL_OFF … /* Calibration, z-axis acceleration offset adjustment */ #define ADIS16240_ZACCL_OFF … /* Clock, hour and minute */ #define ADIS16240_CLK_TIME … /* Clock, month and day */ #define ADIS16240_CLK_DATE … /* Clock, year */ #define ADIS16240_CLK_YEAR … /* Wake-up setting, hour and minute */ #define ADIS16240_WAKE_TIME … /* Wake-up setting, month and day */ #define ADIS16240_WAKE_DATE … /* Alarm 1 amplitude threshold */ #define ADIS16240_ALM_MAG1 … /* Alarm 2 amplitude threshold */ #define ADIS16240_ALM_MAG2 … /* Alarm control */ #define ADIS16240_ALM_CTRL … /* Capture, external trigger control */ #define ADIS16240_XTRIG_CTRL … /* Capture, address pointer */ #define ADIS16240_CAPT_PNTR … /* Capture, configuration and control */ #define ADIS16240_CAPT_CTRL … /* General-purpose digital input/output control */ #define ADIS16240_GPIO_CTRL … /* Miscellaneous control */ #define ADIS16240_MSC_CTRL … /* Internal sample period (rate) control */ #define ADIS16240_SMPL_PRD … /* System command */ #define ADIS16240_GLOB_CMD … /* MSC_CTRL */ /* Enables sum-of-squares output (XYZPEAK_OUT) */ #define ADIS16240_MSC_CTRL_XYZPEAK_OUT_EN … /* Enables peak tracking output (XPEAK_OUT, YPEAK_OUT, and ZPEAK_OUT) */ #define ADIS16240_MSC_CTRL_X_Y_ZPEAK_OUT_EN … /* Self-test enable: 1 = apply electrostatic force, 0 = disabled */ #define ADIS16240_MSC_CTRL_SELF_TEST_EN … /* Data-ready enable: 1 = enabled, 0 = disabled */ #define ADIS16240_MSC_CTRL_DATA_RDY_EN … /* Data-ready polarity: 1 = active high, 0 = active low */ #define ADIS16240_MSC_CTRL_ACTIVE_HIGH … /* Data-ready line selection: 1 = DIO2, 0 = DIO1 */ #define ADIS16240_MSC_CTRL_DATA_RDY_DIO2 … /* DIAG_STAT */ /* Alarm 2 status: 1 = alarm active, 0 = alarm inactive */ #define ADIS16240_DIAG_STAT_ALARM2 … /* Alarm 1 status: 1 = alarm active, 0 = alarm inactive */ #define ADIS16240_DIAG_STAT_ALARM1 … /* Capture buffer full: 1 = capture buffer is full */ #define ADIS16240_DIAG_STAT_CPT_BUF_FUL … /* Flash test, checksum flag: 1 = mismatch, 0 = match */ #define ADIS16240_DIAG_STAT_CHKSUM … /* Power-on, self-test flag: 1 = failure, 0 = pass */ #define ADIS16240_DIAG_STAT_PWRON_FAIL_BIT … /* Power-on self-test: 1 = in-progress, 0 = complete */ #define ADIS16240_DIAG_STAT_PWRON_BUSY … /* SPI communications failure */ #define ADIS16240_DIAG_STAT_SPI_FAIL_BIT … /* Flash update failure */ #define ADIS16240_DIAG_STAT_FLASH_UPT_BIT … /* Power supply above 3.625 V */ #define ADIS16240_DIAG_STAT_POWER_HIGH_BIT … /* Power supply below 2.225 V */ #define ADIS16240_DIAG_STAT_POWER_LOW_BIT … /* GLOB_CMD */ #define ADIS16240_GLOB_CMD_RESUME … #define ADIS16240_GLOB_CMD_SW_RESET … #define ADIS16240_GLOB_CMD_STANDBY … #define ADIS16240_ERROR_ACTIVE … /* At the moment triggers are only used for ring buffer * filling. This may change! */ enum adis16240_scan { … }; static ssize_t adis16240_spi_read_signed(struct device *dev, struct device_attribute *attr, char *buf, unsigned int bits) { … } static ssize_t adis16240_read_12bit_signed(struct device *dev, struct device_attribute *attr, char *buf) { … } static IIO_DEVICE_ATTR(in_accel_xyz_squared_peak_raw, 0444, adis16240_read_12bit_signed, NULL, ADIS16240_XYZPEAK_OUT); static IIO_CONST_ATTR_SAMP_FREQ_AVAIL("4096"); static const u8 adis16240_addresses[][2] = …; static int adis16240_read_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int *val, int *val2, long mask) { … } static int adis16240_write_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int val, int val2, long mask) { … } static const struct iio_chan_spec adis16240_channels[] = …; static struct attribute *adis16240_attributes[] = …; static const struct attribute_group adis16240_attribute_group = …; static const struct iio_info adis16240_info = …; static const char * const adis16240_status_error_msgs[] = …; static const struct adis_timeout adis16240_timeouts = …; static const struct adis_data adis16240_data = …; static int adis16240_probe(struct spi_device *spi) { … } static const struct of_device_id adis16240_of_match[] = …; MODULE_DEVICE_TABLE(of, adis16240_of_match); static struct spi_driver adis16240_driver = …; module_spi_driver(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …; MODULE_ALIAS(…) …; MODULE_IMPORT_NS(…);
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