/* SPDX-License-Identifier: GPL-2.0-only */ /* * itg3200.h -- support InvenSense ITG3200 * Digital 3-Axis Gyroscope driver * * Copyright (c) 2011 Christian Strobel <[email protected]> * Copyright (c) 2011 Manuel Stahl <[email protected]> * Copyright (c) 2012 Thorsten Nowak <[email protected]> */ #ifndef I2C_ITG3200_H_ #define I2C_ITG3200_H_ #include <linux/iio/iio.h> /* Register with I2C address (34h) */ #define ITG3200_REG_ADDRESS … /* Sample rate divider * Range: 0 to 255 * Default value: 0x00 */ #define ITG3200_REG_SAMPLE_RATE_DIV … /* Digital low pass filter settings */ #define ITG3200_REG_DLPF … /* DLPF full scale range */ #define ITG3200_DLPF_FS_SEL_2000 … /* Bandwidth (Hz) and internal sample rate * (kHz) of DLPF */ #define ITG3200_DLPF_256_8 … #define ITG3200_DLPF_188_1 … #define ITG3200_DLPF_98_1 … #define ITG3200_DLPF_42_1 … #define ITG3200_DLPF_20_1 … #define ITG3200_DLPF_10_1 … #define ITG3200_DLPF_5_1 … #define ITG3200_DLPF_CFG_MASK … /* Configuration for interrupt operations */ #define ITG3200_REG_IRQ_CONFIG … /* Logic level */ #define ITG3200_IRQ_ACTIVE_LOW … #define ITG3200_IRQ_ACTIVE_HIGH … /* Drive type */ #define ITG3200_IRQ_OPEN_DRAIN … #define ITG3200_IRQ_PUSH_PULL … /* Latch mode */ #define ITG3200_IRQ_LATCH_UNTIL_CLEARED … #define ITG3200_IRQ_LATCH_50US_PULSE … /* Latch clear method */ #define ITG3200_IRQ_LATCH_CLEAR_ANY … #define ITG3200_IRQ_LATCH_CLEAR_STATUS … /* Enable interrupt when device is ready */ #define ITG3200_IRQ_DEVICE_RDY_ENABLE … /* Enable interrupt when data is available */ #define ITG3200_IRQ_DATA_RDY_ENABLE … /* Determine the status of ITG-3200 interrupts */ #define ITG3200_REG_IRQ_STATUS … /* Status of 'device is ready'-interrupt */ #define ITG3200_IRQ_DEVICE_RDY_STATUS … /* Status of 'data is available'-interrupt */ #define ITG3200_IRQ_DATA_RDY_STATUS … /* Sensor registers */ #define ITG3200_REG_TEMP_OUT_H … #define ITG3200_REG_TEMP_OUT_L … #define ITG3200_REG_GYRO_XOUT_H … #define ITG3200_REG_GYRO_XOUT_L … #define ITG3200_REG_GYRO_YOUT_H … #define ITG3200_REG_GYRO_YOUT_L … #define ITG3200_REG_GYRO_ZOUT_H … #define ITG3200_REG_GYRO_ZOUT_L … /* Power management */ #define ITG3200_REG_POWER_MANAGEMENT … /* Reset device and internal registers to the * power-up-default settings */ #define ITG3200_RESET … /* Enable low power sleep mode */ #define ITG3200_SLEEP … /* Put according gyroscope in standby mode */ #define ITG3200_STANDBY_GYRO_X … #define ITG3200_STANDBY_GYRO_Y … #define ITG3200_STANDBY_GYRO_Z … /* Determine the device clock source */ #define ITG3200_CLK_INTERNAL … #define ITG3200_CLK_GYRO_X … #define ITG3200_CLK_GYRO_Y … #define ITG3200_CLK_GYRO_Z … #define ITG3200_CLK_EXT_32K … #define ITG3200_CLK_EXT_19M … /** * struct itg3200 - device instance specific data * @i2c: actual i2c_client * @trig: data ready trigger from itg3200 pin **/ struct itg3200 { … }; enum ITG3200_SCAN_INDEX { … }; int itg3200_write_reg_8(struct iio_dev *indio_dev, u8 reg_address, u8 val); int itg3200_read_reg_8(struct iio_dev *indio_dev, u8 reg_address, u8 *val); #ifdef CONFIG_IIO_BUFFER void itg3200_remove_trigger(struct iio_dev *indio_dev); int itg3200_probe_trigger(struct iio_dev *indio_dev); int itg3200_buffer_configure(struct iio_dev *indio_dev); void itg3200_buffer_unconfigure(struct iio_dev *indio_dev); #else /* CONFIG_IIO_BUFFER */ static inline void itg3200_remove_trigger(struct iio_dev *indio_dev) { } static inline int itg3200_probe_trigger(struct iio_dev *indio_dev) { return 0; } static inline int itg3200_buffer_configure(struct iio_dev *indio_dev) { return 0; } static inline void itg3200_buffer_unconfigure(struct iio_dev *indio_dev) { } #endif /* CONFIG_IIO_BUFFER */ #endif /* ITG3200_H_ */
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