// SPDX-License-Identifier: GPL-2.0-only /* * KXCJK-1013 3-axis accelerometer driver * Copyright (c) 2014, Intel Corporation. */ #include <linux/module.h> #include <linux/i2c.h> #include <linux/interrupt.h> #include <linux/delay.h> #include <linux/bitops.h> #include <linux/slab.h> #include <linux/string.h> #include <linux/acpi.h> #include <linux/pm.h> #include <linux/pm_runtime.h> #include <linux/regulator/consumer.h> #include <linux/iio/iio.h> #include <linux/iio/sysfs.h> #include <linux/iio/buffer.h> #include <linux/iio/trigger.h> #include <linux/iio/events.h> #include <linux/iio/trigger_consumer.h> #include <linux/iio/triggered_buffer.h> #include <linux/iio/accel/kxcjk_1013.h> #define KXCJK1013_DRV_NAME … #define KXCJK1013_IRQ_NAME … #define KXTF9_REG_HP_XOUT_L … #define KXTF9_REG_HP_XOUT_H … #define KXTF9_REG_HP_YOUT_L … #define KXTF9_REG_HP_YOUT_H … #define KXTF9_REG_HP_ZOUT_L … #define KXTF9_REG_HP_ZOUT_H … #define KXCJK1013_REG_XOUT_L … /* * From low byte X axis register, all the other addresses of Y and Z can be * obtained by just applying axis offset. The following axis defines are just * provide clarity, but not used. */ #define KXCJK1013_REG_XOUT_H … #define KXCJK1013_REG_YOUT_L … #define KXCJK1013_REG_YOUT_H … #define KXCJK1013_REG_ZOUT_L … #define KXCJK1013_REG_ZOUT_H … #define KXCJK1013_REG_DCST_RESP … #define KXCJK1013_REG_WHO_AM_I … #define KXTF9_REG_TILT_POS_CUR … #define KXTF9_REG_TILT_POS_PREV … #define KXTF9_REG_INT_SRC1 … #define KXTF9_REG_INT_SRC2 … #define KXCJK1013_REG_INT_SRC1 … #define KXCJK1013_REG_INT_SRC2 … #define KXCJK1013_REG_STATUS_REG … #define KXCJK1013_REG_INT_REL … #define KXCJK1013_REG_CTRL1 … #define KXTF9_REG_CTRL2 … #define KXTF9_REG_CTRL3 … #define KXCJK1013_REG_CTRL2 … #define KXCJK1013_REG_INT_CTRL1 … #define KXCJK1013_REG_INT_CTRL2 … #define KXTF9_REG_INT_CTRL3 … #define KXCJK1013_REG_DATA_CTRL … #define KXTF9_REG_TILT_TIMER … #define KXCJK1013_REG_WAKE_TIMER … #define KXTF9_REG_TDT_TIMER … #define KXTF9_REG_TDT_THRESH_H … #define KXTF9_REG_TDT_THRESH_L … #define KXTF9_REG_TDT_TAP_TIMER … #define KXTF9_REG_TDT_TOTAL_TIMER … #define KXTF9_REG_TDT_LATENCY_TIMER … #define KXTF9_REG_TDT_WINDOW_TIMER … #define KXCJK1013_REG_SELF_TEST … #define KXTF9_REG_WAKE_THRESH … #define KXTF9_REG_TILT_ANGLE … #define KXTF9_REG_HYST_SET … #define KXCJK1013_REG_WAKE_THRES … /* Everything up to 0x11 is equal to KXCJK1013/KXTF9 above */ #define KX023_REG_INS1 … #define KX023_REG_INS2 … #define KX023_REG_INS3 … #define KX023_REG_STAT … #define KX023_REG_INT_REL … #define KX023_REG_CNTL1 … #define KX023_REG_CNTL2 … #define KX023_REG_CNTL3 … #define KX023_REG_ODCNTL … #define KX023_REG_INC1 … #define KX023_REG_INC2 … #define KX023_REG_INC3 … #define KX023_REG_INC4 … #define KX023_REG_INC5 … #define KX023_REG_INC6 … #define KX023_REG_TILT_TIMER … #define KX023_REG_WUFC … #define KX023_REG_TDTRC … #define KX023_REG_TDTC … #define KX023_REG_TTH … #define KX023_REG_TTL … #define KX023_REG_FTD … #define KX023_REG_STD … #define KX023_REG_TLT … #define KX023_REG_TWS … #define KX023_REG_ATH … #define KX023_REG_TILT_ANGLE_LL … #define KX023_REG_TILT_ANGLE_HL … #define KX023_REG_HYST_SET … #define KX023_REG_LP_CNTL … #define KX023_REG_BUF_CNTL1 … #define KX023_REG_BUF_CNTL2 … #define KX023_REG_BUF_STATUS_1 … #define KX023_REG_BUF_STATUS_2 … #define KX023_REG_BUF_CLEAR … #define KX023_REG_BUF_READ … #define KX023_REG_SELF_TEST … #define KXCJK1013_REG_CTRL1_BIT_PC1 … #define KXCJK1013_REG_CTRL1_BIT_RES … #define KXCJK1013_REG_CTRL1_BIT_DRDY … #define KXCJK1013_REG_CTRL1_BIT_GSEL1 … #define KXCJK1013_REG_CTRL1_BIT_GSEL0 … #define KXCJK1013_REG_CTRL1_BIT_WUFE … #define KXCJK1013_REG_INT_CTRL1_BIT_IEU … #define KXCJK1013_REG_INT_CTRL1_BIT_IEL … #define KXCJK1013_REG_INT_CTRL1_BIT_IEA … #define KXCJK1013_REG_INT_CTRL1_BIT_IEN … #define KXTF9_REG_TILT_BIT_LEFT_EDGE … #define KXTF9_REG_TILT_BIT_RIGHT_EDGE … #define KXTF9_REG_TILT_BIT_LOWER_EDGE … #define KXTF9_REG_TILT_BIT_UPPER_EDGE … #define KXTF9_REG_TILT_BIT_FACE_DOWN … #define KXTF9_REG_TILT_BIT_FACE_UP … #define KXCJK1013_DATA_MASK_12_BIT … #define KXCJK1013_MAX_STARTUP_TIME_US … #define KXCJK1013_SLEEP_DELAY_MS … #define KXCJK1013_REG_INT_SRC1_BIT_TPS … #define KXCJK1013_REG_INT_SRC1_BIT_WUFS … #define KXCJK1013_REG_INT_SRC1_MASK_TDTS … #define KXCJK1013_REG_INT_SRC1_TAP_NONE … #define KXCJK1013_REG_INT_SRC1_TAP_SINGLE … #define KXCJK1013_REG_INT_SRC1_TAP_DOUBLE … #define KXCJK1013_REG_INT_SRC1_BIT_DRDY … /* KXCJK: INT_SOURCE2: motion detect, KXTF9: INT_SRC_REG1: tap detect */ #define KXCJK1013_REG_INT_SRC2_BIT_ZP … #define KXCJK1013_REG_INT_SRC2_BIT_ZN … #define KXCJK1013_REG_INT_SRC2_BIT_YP … #define KXCJK1013_REG_INT_SRC2_BIT_YN … #define KXCJK1013_REG_INT_SRC2_BIT_XP … #define KXCJK1013_REG_INT_SRC2_BIT_XN … /* KX023 interrupt routing to INT1. INT2 can be configured with INC6 */ #define KX023_REG_INC4_BFI1 … #define KX023_REG_INC4_WMI1 … #define KX023_REG_INC4_DRDY1 … #define KX023_REG_INC4_TDTI1 … #define KX023_REG_INC4_WUFI1 … #define KX023_REG_INC4_TPI1 … #define KXCJK1013_DEFAULT_WAKE_THRES … enum kx_chipset { … }; enum kx_acpi_type { … }; struct kx_chipset_regs { … }; static const struct kx_chipset_regs kxcjk1013_regs = …; static const struct kx_chipset_regs kxtf9_regs = …; /* The registers have totally different names but the bits are compatible */ static const struct kx_chipset_regs kx0231025_regs = …; enum kxcjk1013_axis { … }; struct kxcjk1013_data { … }; enum kxcjk1013_mode { … }; enum kxcjk1013_range { … }; struct kx_odr_map { … }; static const struct kx_odr_map samp_freq_table[] = …; static const char *const kxcjk1013_samp_freq_avail = …; static const struct kx_odr_map kxtf9_samp_freq_table[] = …; static const char *const kxtf9_samp_freq_avail = …; /* Refer to section 4 of the specification */ static __maybe_unused const struct { … } odr_start_up_times[KX_MAX_CHIPS][12] = …; static const struct { … } KXCJK1013_scale_table[] = …; #ifdef CONFIG_ACPI enum kiox010a_fn_index { … }; static int kiox010a_dsm(struct device *dev, int fn_index) { … } static const struct acpi_device_id kx_acpi_match[] = …; MODULE_DEVICE_TABLE(acpi, kx_acpi_match); #endif static int kxcjk1013_set_mode(struct kxcjk1013_data *data, enum kxcjk1013_mode mode) { … } static int kxcjk1013_get_mode(struct kxcjk1013_data *data, enum kxcjk1013_mode *mode) { … } static int kxcjk1013_set_range(struct kxcjk1013_data *data, int range_index) { … } static int kxcjk1013_chip_init(struct kxcjk1013_data *data) { … } #ifdef CONFIG_PM static int kxcjk1013_get_startup_times(struct kxcjk1013_data *data) { … } #endif static int kxcjk1013_set_power_state(struct kxcjk1013_data *data, bool on) { … } static int kxcjk1013_chip_update_thresholds(struct kxcjk1013_data *data) { … } static int kxcjk1013_setup_any_motion_interrupt(struct kxcjk1013_data *data, bool status) { … } static int kxcjk1013_setup_new_data_interrupt(struct kxcjk1013_data *data, bool status) { … } static const struct kx_odr_map *kxcjk1013_find_odr_value( const struct kx_odr_map *map, size_t map_size, int val, int val2) { … } static int kxcjk1013_convert_odr_value(const struct kx_odr_map *map, size_t map_size, int odr_bits, int *val, int *val2) { … } static int kxcjk1013_set_odr(struct kxcjk1013_data *data, int val, int val2) { … } static int kxcjk1013_get_odr(struct kxcjk1013_data *data, int *val, int *val2) { … } static int kxcjk1013_get_acc_reg(struct kxcjk1013_data *data, int axis) { … } static int kxcjk1013_set_scale(struct kxcjk1013_data *data, int val) { … } static int kxcjk1013_read_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int *val, int *val2, long mask) { … } static int kxcjk1013_write_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int val, int val2, long mask) { … } static int kxcjk1013_read_event(struct iio_dev *indio_dev, const struct iio_chan_spec *chan, enum iio_event_type type, enum iio_event_direction dir, enum iio_event_info info, int *val, int *val2) { … } static int kxcjk1013_write_event(struct iio_dev *indio_dev, const struct iio_chan_spec *chan, enum iio_event_type type, enum iio_event_direction dir, enum iio_event_info info, int val, int val2) { … } static int kxcjk1013_read_event_config(struct iio_dev *indio_dev, const struct iio_chan_spec *chan, enum iio_event_type type, enum iio_event_direction dir) { … } static int kxcjk1013_write_event_config(struct iio_dev *indio_dev, const struct iio_chan_spec *chan, enum iio_event_type type, enum iio_event_direction dir, int state) { … } static int kxcjk1013_buffer_preenable(struct iio_dev *indio_dev) { … } static int kxcjk1013_buffer_postdisable(struct iio_dev *indio_dev) { … } static ssize_t kxcjk1013_get_samp_freq_avail(struct device *dev, struct device_attribute *attr, char *buf) { … } static IIO_DEVICE_ATTR(in_accel_sampling_frequency_available, S_IRUGO, kxcjk1013_get_samp_freq_avail, NULL, 0); static IIO_CONST_ATTR(in_accel_scale_available, "0.009582 0.019163 0.038326"); static struct attribute *kxcjk1013_attributes[] = …; static const struct attribute_group kxcjk1013_attrs_group = …; static const struct iio_event_spec kxcjk1013_event = …; static const struct iio_mount_matrix * kxcjk1013_get_mount_matrix(const struct iio_dev *indio_dev, const struct iio_chan_spec *chan) { … } static const struct iio_chan_spec_ext_info kxcjk1013_ext_info[] = …; #define KXCJK1013_CHANNEL(_axis) … static const struct iio_chan_spec kxcjk1013_channels[] = …; static const struct iio_buffer_setup_ops kxcjk1013_buffer_setup_ops = …; static const struct iio_info kxcjk1013_info = …; static const unsigned long kxcjk1013_scan_masks[] = …; static irqreturn_t kxcjk1013_trigger_handler(int irq, void *p) { … } static void kxcjk1013_trig_reen(struct iio_trigger *trig) { … } static int kxcjk1013_data_rdy_trigger_set_state(struct iio_trigger *trig, bool state) { … } static const struct iio_trigger_ops kxcjk1013_trigger_ops = …; static void kxcjk1013_report_motion_event(struct iio_dev *indio_dev) { … } static irqreturn_t kxcjk1013_event_handler(int irq, void *private) { … } static irqreturn_t kxcjk1013_data_rdy_trig_poll(int irq, void *private) { … } static const char *kxcjk1013_match_acpi_device(struct device *dev, enum kx_chipset *chipset, enum kx_acpi_type *acpi_type, const char **label) { … } static int kxcjk1013_probe(struct i2c_client *client) { … } static void kxcjk1013_remove(struct i2c_client *client) { … } #ifdef CONFIG_PM_SLEEP static int kxcjk1013_suspend(struct device *dev) { … } static int kxcjk1013_resume(struct device *dev) { … } #endif #ifdef CONFIG_PM static int kxcjk1013_runtime_suspend(struct device *dev) { … } static int kxcjk1013_runtime_resume(struct device *dev) { … } #endif static const struct dev_pm_ops kxcjk1013_pm_ops = …; static const struct i2c_device_id kxcjk1013_id[] = …; MODULE_DEVICE_TABLE(i2c, kxcjk1013_id); static const struct of_device_id kxcjk1013_of_match[] = …; MODULE_DEVICE_TABLE(of, kxcjk1013_of_match); static struct i2c_driver kxcjk1013_driver = …; module_i2c_driver(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …; MODULE_DESCRIPTION(…) …;
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