// SPDX-License-Identifier: GPL-2.0-or-later /* * ADXL345/346 Three-Axis Digital Accelerometers * * Enter bugs at http://blackfin.uclinux.org/ * * Copyright (C) 2009 Michael Hennerich, Analog Devices Inc. */ #include <linux/device.h> #include <linux/delay.h> #include <linux/input.h> #include <linux/interrupt.h> #include <linux/irq.h> #include <linux/slab.h> #include <linux/workqueue.h> #include <linux/input/adxl34x.h> #include <linux/module.h> #include "adxl34x.h" /* ADXL345/6 Register Map */ #define DEVID … #define THRESH_TAP … #define OFSX … #define OFSY … #define OFSZ … #define DUR … #define LATENT … #define WINDOW … #define THRESH_ACT … #define THRESH_INACT … #define TIME_INACT … #define ACT_INACT_CTL … /* inactivity detection */ #define THRESH_FF … #define TIME_FF … #define TAP_AXES … #define ACT_TAP_STATUS … #define BW_RATE … #define POWER_CTL … #define INT_ENABLE … #define INT_MAP … #define INT_SOURCE … #define DATA_FORMAT … #define DATAX0 … #define DATAX1 … #define DATAY0 … #define DATAY1 … #define DATAZ0 … #define DATAZ1 … #define FIFO_CTL … #define FIFO_STATUS … #define TAP_SIGN … /* Orientation ADXL346 only */ #define ORIENT_CONF … #define ORIENT … /* DEVIDs */ #define ID_ADXL345 … #define ID_ADXL346 … /* INT_ENABLE/INT_MAP/INT_SOURCE Bits */ #define DATA_READY … #define SINGLE_TAP … #define DOUBLE_TAP … #define ACTIVITY … #define INACTIVITY … #define FREE_FALL … #define WATERMARK … #define OVERRUN … /* ACT_INACT_CONTROL Bits */ #define ACT_ACDC … #define ACT_X_EN … #define ACT_Y_EN … #define ACT_Z_EN … #define INACT_ACDC … #define INACT_X_EN … #define INACT_Y_EN … #define INACT_Z_EN … /* TAP_AXES Bits */ #define SUPPRESS … #define TAP_X_EN … #define TAP_Y_EN … #define TAP_Z_EN … /* ACT_TAP_STATUS Bits */ #define ACT_X_SRC … #define ACT_Y_SRC … #define ACT_Z_SRC … #define ASLEEP … #define TAP_X_SRC … #define TAP_Y_SRC … #define TAP_Z_SRC … /* BW_RATE Bits */ #define LOW_POWER … #define RATE(x) … /* POWER_CTL Bits */ #define PCTL_LINK … #define PCTL_AUTO_SLEEP … #define PCTL_MEASURE … #define PCTL_SLEEP … #define PCTL_WAKEUP(x) … /* DATA_FORMAT Bits */ #define SELF_TEST … #define SPI … #define INT_INVERT … #define FULL_RES … #define JUSTIFY … #define RANGE(x) … #define RANGE_PM_2g … #define RANGE_PM_4g … #define RANGE_PM_8g … #define RANGE_PM_16g … /* * Maximum value our axis may get in full res mode for the input device * (signed 13 bits) */ #define ADXL_FULLRES_MAX_VAL … /* * Maximum value our axis may get in fixed res mode for the input device * (signed 10 bits) */ #define ADXL_FIXEDRES_MAX_VAL … /* FIFO_CTL Bits */ #define FIFO_MODE(x) … #define FIFO_BYPASS … #define FIFO_FIFO … #define FIFO_STREAM … #define FIFO_TRIGGER … #define TRIGGER … #define SAMPLES(x) … /* FIFO_STATUS Bits */ #define FIFO_TRIG … #define ENTRIES(x) … /* TAP_SIGN Bits ADXL346 only */ #define XSIGN … #define YSIGN … #define ZSIGN … #define XTAP … #define YTAP … #define ZTAP … /* ORIENT_CONF ADXL346 only */ #define ORIENT_DEADZONE(x) … #define ORIENT_DIVISOR(x) … /* ORIENT ADXL346 only */ #define ADXL346_2D_VALID … #define ADXL346_2D_ORIENT(x) … #define ADXL346_3D_VALID … #define ADXL346_3D_ORIENT(x) … #define ADXL346_2D_PORTRAIT_POS … #define ADXL346_2D_PORTRAIT_NEG … #define ADXL346_2D_LANDSCAPE_POS … #define ADXL346_2D_LANDSCAPE_NEG … #define ADXL346_3D_FRONT … #define ADXL346_3D_BACK … #define ADXL346_3D_RIGHT … #define ADXL346_3D_LEFT … #define ADXL346_3D_TOP … #define ADXL346_3D_BOTTOM … #undef ADXL_DEBUG #define ADXL_X_AXIS … #define ADXL_Y_AXIS … #define ADXL_Z_AXIS … #define AC_READ(ac, reg) … #define AC_WRITE(ac, reg, val) … struct axis_triple { … }; struct adxl34x { … }; static const struct adxl34x_platform_data adxl34x_default_init = …; static void adxl34x_get_triple(struct adxl34x *ac, struct axis_triple *axis) { … } static void adxl34x_service_ev_fifo(struct adxl34x *ac) { … } static void adxl34x_report_key_single(struct input_dev *input, int key) { … } static void adxl34x_send_key_events(struct adxl34x *ac, struct adxl34x_platform_data *pdata, int status, int press) { … } static void adxl34x_do_tap(struct adxl34x *ac, struct adxl34x_platform_data *pdata, int status) { … } static irqreturn_t adxl34x_irq(int irq, void *handle) { … } static void __adxl34x_disable(struct adxl34x *ac) { … } static void __adxl34x_enable(struct adxl34x *ac) { … } static int adxl34x_suspend(struct device *dev) { … } static int adxl34x_resume(struct device *dev) { … } static ssize_t adxl34x_disable_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t adxl34x_disable_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static DEVICE_ATTR(disable, 0664, adxl34x_disable_show, adxl34x_disable_store); static ssize_t adxl34x_calibrate_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t adxl34x_calibrate_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static DEVICE_ATTR(calibrate, 0664, adxl34x_calibrate_show, adxl34x_calibrate_store); static ssize_t adxl34x_rate_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t adxl34x_rate_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static DEVICE_ATTR(rate, 0664, adxl34x_rate_show, adxl34x_rate_store); static ssize_t adxl34x_autosleep_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t adxl34x_autosleep_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static DEVICE_ATTR(autosleep, 0664, adxl34x_autosleep_show, adxl34x_autosleep_store); static ssize_t adxl34x_position_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static DEVICE_ATTR(position, S_IRUGO, adxl34x_position_show, NULL); #ifdef ADXL_DEBUG static ssize_t adxl34x_write_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct adxl34x *ac = dev_get_drvdata(dev); unsigned int val; int error; /* * This allows basic ADXL register write access for debug purposes. */ error = kstrtouint(buf, 16, &val); if (error) return error; guard(mutex)(&ac->mutex); AC_WRITE(ac, val >> 8, val & 0xFF); return count; } static DEVICE_ATTR(write, 0664, NULL, adxl34x_write_store); #endif static struct attribute *adxl34x_attributes[] = …; static const struct attribute_group adxl34x_attr_group = …; const struct attribute_group *adxl34x_groups[] = …; EXPORT_SYMBOL_GPL(…); static int adxl34x_input_open(struct input_dev *input) { … } static void adxl34x_input_close(struct input_dev *input) { … } struct adxl34x *adxl34x_probe(struct device *dev, int irq, bool fifo_delay_default, const struct adxl34x_bus_ops *bops) { … } EXPORT_SYMBOL_GPL(…); EXPORT_GPL_SIMPLE_DEV_PM_OPS(…); MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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