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/
usr
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src
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linux-headers-6.8.0-83-generic
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include
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linux
/
iio
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gyro
/ [
drwxr-xr-x
]
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itg3200.h
/* SPDX-License-Identifier: GPL-2.0-only */ /* * itg3200.h -- support InvenSense ITG3200 * Digital 3-Axis Gyroscope driver * * Copyright (c) 2011 Christian Strobel <christian.strobel@iis.fraunhofer.de> * Copyright (c) 2011 Manuel Stahl <manuel.stahl@iis.fraunhofer.de> * Copyright (c) 2012 Thorsten Nowak <thorsten.nowak@iis.fraunhofer.de> */ #ifndef I2C_ITG3200_H_ #define I2C_ITG3200_H_ #include <linux/iio/iio.h> /* Register with I2C address (34h) */ #define ITG3200_REG_ADDRESS 0x00 /* Sample rate divider * Range: 0 to 255 * Default value: 0x00 */ #define ITG3200_REG_SAMPLE_RATE_DIV 0x15 /* Digital low pass filter settings */ #define ITG3200_REG_DLPF 0x16 /* DLPF full scale range */ #define ITG3200_DLPF_FS_SEL_2000 0x18 /* Bandwidth (Hz) and internal sample rate * (kHz) of DLPF */ #define ITG3200_DLPF_256_8 0x00 #define ITG3200_DLPF_188_1 0x01 #define ITG3200_DLPF_98_1 0x02 #define ITG3200_DLPF_42_1 0x03 #define ITG3200_DLPF_20_1 0x04 #define ITG3200_DLPF_10_1 0x05 #define ITG3200_DLPF_5_1 0x06 #define ITG3200_DLPF_CFG_MASK 0x07 /* Configuration for interrupt operations */ #define ITG3200_REG_IRQ_CONFIG 0x17 /* Logic level */ #define ITG3200_IRQ_ACTIVE_LOW 0x80 #define ITG3200_IRQ_ACTIVE_HIGH 0x00 /* Drive type */ #define ITG3200_IRQ_OPEN_DRAIN 0x40 #define ITG3200_IRQ_PUSH_PULL 0x00 /* Latch mode */ #define ITG3200_IRQ_LATCH_UNTIL_CLEARED 0x20 #define ITG3200_IRQ_LATCH_50US_PULSE 0x00 /* Latch clear method */ #define ITG3200_IRQ_LATCH_CLEAR_ANY 0x10 #define ITG3200_IRQ_LATCH_CLEAR_STATUS 0x00 /* Enable interrupt when device is ready */ #define ITG3200_IRQ_DEVICE_RDY_ENABLE 0x04 /* Enable interrupt when data is available */ #define ITG3200_IRQ_DATA_RDY_ENABLE 0x01 /* Determine the status of ITG-3200 interrupts */ #define ITG3200_REG_IRQ_STATUS 0x1A /* Status of 'device is ready'-interrupt */ #define ITG3200_IRQ_DEVICE_RDY_STATUS 0x04 /* Status of 'data is available'-interrupt */ #define ITG3200_IRQ_DATA_RDY_STATUS 0x01 /* Sensor registers */ #define ITG3200_REG_TEMP_OUT_H 0x1B #define ITG3200_REG_TEMP_OUT_L 0x1C #define ITG3200_REG_GYRO_XOUT_H 0x1D #define ITG3200_REG_GYRO_XOUT_L 0x1E #define ITG3200_REG_GYRO_YOUT_H 0x1F #define ITG3200_REG_GYRO_YOUT_L 0x20 #define ITG3200_REG_GYRO_ZOUT_H 0x21 #define ITG3200_REG_GYRO_ZOUT_L 0x22 /* Power management */ #define ITG3200_REG_POWER_MANAGEMENT 0x3E /* Reset device and internal registers to the * power-up-default settings */ #define ITG3200_RESET 0x80 /* Enable low power sleep mode */ #define ITG3200_SLEEP 0x40 /* Put according gyroscope in standby mode */ #define ITG3200_STANDBY_GYRO_X 0x20 #define ITG3200_STANDBY_GYRO_Y 0x10 #define ITG3200_STANDBY_GYRO_Z 0x08 /* Determine the device clock source */ #define ITG3200_CLK_INTERNAL 0x00 #define ITG3200_CLK_GYRO_X 0x01 #define ITG3200_CLK_GYRO_Y 0x02 #define ITG3200_CLK_GYRO_Z 0x03 #define ITG3200_CLK_EXT_32K 0x04 #define ITG3200_CLK_EXT_19M 0x05 /** * struct itg3200 - device instance specific data * @i2c: actual i2c_client * @trig: data ready trigger from itg3200 pin **/ struct itg3200 { struct i2c_client *i2c; struct iio_trigger *trig; struct iio_mount_matrix orientation; /* lock to protect against multiple access to the device */ struct mutex lock; }; enum ITG3200_SCAN_INDEX { ITG3200_SCAN_TEMP, ITG3200_SCAN_GYRO_X, ITG3200_SCAN_GYRO_Y, ITG3200_SCAN_GYRO_Z, ITG3200_SCAN_ELEMENTS, }; 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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