/** * enum mpu3050_fullscale - indicates the full range of the sensor in deg/sec
*/ enum mpu3050_fullscale {
FS_250_DPS = 0,
FS_500_DPS,
FS_1000_DPS,
FS_2000_DPS,
};
/** * enum mpu3050_lpf - indicates the low pass filter width
*/ enum mpu3050_lpf { /* This implicity sets sample frequency to 8 kHz */
LPF_256_HZ_NOLPF = 0, /* All others sets the sample frequency to 1 kHz */
LPF_188_HZ,
LPF_98_HZ,
LPF_42_HZ,
LPF_20_HZ,
LPF_10_HZ,
LPF_5_HZ,
LPF_2100_HZ_NOLPF,
};
/** * struct mpu3050 - instance state container for the device * @dev: parent device for this instance * @orientation: mounting matrix, flipped axis etc * @map: regmap to reach the registers * @lock: serialization lock to marshal all requests * @irq: the IRQ used for this device * @regs: the regulators to power this device * @fullscale: the current fullscale setting for the device * @lpf: digital low pass filter setting for the device * @divisor: base frequency divider: divides 8 or 1 kHz * @calibration: the three signed 16-bit calibration settings that * get written into the offset registers for each axis to compensate * for DC offsets * @trig: trigger for the MPU-3050 interrupt, if present * @hw_irq_trigger: hardware interrupt trigger is in use * @irq_actl: interrupt is active low * @irq_latch: latched IRQ, this means that it is a level IRQ * @irq_opendrain: the interrupt line shall be configured open drain * @pending_fifo_footer: tells us if there is a pending footer in the FIFO * that we have to read out first when handling the FIFO * @hw_timestamp: latest hardware timestamp from the trigger IRQ, when in * use * @i2cmux: an I2C mux reflecting the fact that this sensor is a hub with * a pass-through I2C interface coming out of it: this device needs to be * powered up in order to reach devices on the other side of this mux
*/ struct mpu3050 { struct device *dev; struct iio_mount_matrix orientation; struct regmap *map; struct mutex lock; int irq; struct regulator_bulk_data regs[2]; enum mpu3050_fullscale fullscale; enum mpu3050_lpf lpf;
u8 divisor;
s16 calibration[3]; struct iio_trigger *trig; bool hw_irq_trigger; bool irq_actl; bool irq_latch; bool irq_opendrain; bool pending_fifo_footer;
s64 hw_timestamp; struct i2c_mux_core *i2cmux;
};
/* Probe called from different transports */ int mpu3050_common_probe(struct device *dev, struct regmap *map, int irq, constchar *name); void mpu3050_common_remove(struct device *dev);
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