a2d230bd88
Support three different FIFO contents which are selectable through
a new DT property, fifo-mode-sel, which may be set to one of the
following values:
- 0x0 # 1x Accelerometer @12bit and 1x temperature @12bit samples
- 0x1 # 1x Accelerometer @16bit sample
- 0x2 # 2x Accelerometer @8bit samples (previous and current)
Signed-off-by: Armando Visconti <armando.visconti@st.com>
57 lines
1.6 KiB
C
57 lines
1.6 KiB
C
/* ST Microelectronics LIS2DUX12 6-axis IMU sensor driver
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*
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* Copyright (c) 2023 Google LLC
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* Copyright (c) 2024 STMicroelectronics
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef ZEPHYR_DRIVERS_SENSOR_LIS2DUX12_DECODER_H_
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#define ZEPHYR_DRIVERS_SENSOR_LIS2DUX12_DECODER_H_
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#include <stdint.h>
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#include <zephyr/drivers/sensor.h>
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/*
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* This macro converts the Accelerometer full-scale range value (which should be a power of 2) to
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* an index value used by the decoder. Note: this index is not the same as the RAW register value.
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*/
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#define LIS2DUX12_ACCEL_FS_VAL_TO_FS_IDX(x) (__builtin_clz(x) - 1)
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struct lis2dux12_decoder_header {
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uint64_t timestamp;
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uint8_t is_fifo: 1;
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uint8_t range: 2;
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uint8_t reserved: 5;
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uint8_t int_status;
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} __attribute__((__packed__));
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struct lis2dux12_fifo_data {
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struct lis2dux12_decoder_header header;
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uint32_t accel_odr: 4;
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uint32_t fifo_mode_sel: 2;
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uint32_t fifo_count: 7;
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uint32_t reserved_1: 5;
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uint32_t accel_batch_odr: 3;
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uint32_t ts_batch_odr: 2;
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uint32_t reserved: 9;
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} __attribute__((__packed__));
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struct lis2dux12_rtio_data {
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struct lis2dux12_decoder_header header;
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struct {
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uint8_t has_accel: 1; /* set if accel channel has data */
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uint8_t has_temp: 1; /* set if temp channel has data */
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uint8_t reserved: 6;
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} __attribute__((__packed__));
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int16_t acc[3];
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int16_t temp;
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};
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int lis2dux12_encode(const struct device *dev, const struct sensor_chan_spec *const channels,
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const size_t num_channels, uint8_t *buf);
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int lis2dux12_get_decoder(const struct device *dev, const struct sensor_decoder_api **decoder);
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#endif /* ZEPHYR_DRIVERS_SENSOR_LIS2DUX12_DECODER_H_ */
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