BMI055_Gyroscope.hpp
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/****************************************************************************
*
* Copyright (c) 2020 PX4 Development Team. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name PX4 nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
#pragma once
#include "BMI055.hpp"
#include <lib/drivers/gyroscope/PX4Gyroscope.hpp>
#include "Bosch_BMI055_Gyroscope_Registers.hpp"
namespace Bosch::BMI055::Gyroscope
{
class BMI055_Gyroscope : public BMI055
{
public:
BMI055_Gyroscope(I2CSPIBusOption bus_option, int bus, uint32_t device, enum Rotation rotation, int bus_frequency,
spi_mode_e spi_mode, spi_drdy_gpio_t drdy_gpio);
~BMI055_Gyroscope() override;
void RunImpl() override;
void print_status() override;
private:
void exit_and_cleanup() override;
// Sensor Configuration
static constexpr uint32_t RATE{2000}; // 2000 Hz
static constexpr float FIFO_SAMPLE_DT{1e6f / RATE};
static constexpr uint32_t FIFO_MAX_SAMPLES{math::min(FIFO::SIZE / sizeof(FIFO::DATA), sizeof(sensor_gyro_fifo_s::x) / sizeof(sensor_gyro_fifo_s::x[0]))};
// Transfer data
struct FIFOTransferBuffer {
uint8_t cmd{static_cast<uint8_t>(Register::FIFO_DATA) | DIR_READ};
FIFO::DATA f[FIFO_MAX_SAMPLES] {};
};
// ensure no struct padding
static_assert(sizeof(FIFOTransferBuffer) == (1 + FIFO_MAX_SAMPLES *sizeof(FIFO::DATA)));
struct register_config_t {
Register reg;
uint8_t set_bits{0};
uint8_t clear_bits{0};
};
int probe() override;
bool Configure();
void ConfigureGyro();
void ConfigureSampleRate(int sample_rate = 0);
void ConfigureFIFOWatermark(uint8_t samples);
static int DataReadyInterruptCallback(int irq, void *context, void *arg);
void DataReady();
bool DataReadyInterruptConfigure();
bool DataReadyInterruptDisable();
bool RegisterCheck(const register_config_t ®_cfg);
uint8_t RegisterRead(Register reg);
void RegisterWrite(Register reg, uint8_t value);
void RegisterSetAndClearBits(Register reg, uint8_t setbits, uint8_t clearbits);
bool FIFORead(const hrt_abstime ×tamp_sample, uint8_t samples);
void FIFOReset();
PX4Gyroscope _px4_gyro;
perf_counter_t _bad_register_perf{perf_alloc(PC_COUNT, MODULE_NAME"_gyro: bad register")};
perf_counter_t _bad_transfer_perf{perf_alloc(PC_COUNT, MODULE_NAME"_gyro: bad transfer")};
perf_counter_t _fifo_empty_perf{perf_alloc(PC_COUNT, MODULE_NAME"_gyro: FIFO empty")};
perf_counter_t _fifo_overflow_perf{perf_alloc(PC_COUNT, MODULE_NAME"_gyro: FIFO overflow")};
perf_counter_t _fifo_reset_perf{perf_alloc(PC_COUNT, MODULE_NAME"_gyro: FIFO reset")};
perf_counter_t _drdy_missed_perf{nullptr};
uint8_t _fifo_samples{static_cast<uint8_t>(_fifo_empty_interval_us / (1000000 / RATE))};
uint8_t _checked_register{0};
static constexpr uint8_t size_register_cfg{8};
register_config_t _register_cfg[size_register_cfg] {
// Register | Set bits, Clear bits
{ Register::RANGE, RANGE_BIT::gyro_range_2000_dps, 0 },
{ Register::RATE_HBW, RATE_HBW_BIT::data_high_bw, 0 },
{ Register::INT_EN_0, INT_EN_0_BIT::fifo_en, 0 },
{ Register::INT_EN_1, 0, INT_EN_1_BIT::int1_od | INT_EN_1_BIT::int1_lvl },
{ Register::INT_MAP_1, INT_MAP_1_BIT::int1_fifo, 0 },
{ Register::FIFO_WM_ENABLE, FIFO_WM_ENABLE_BIT::fifo_wm_enable, 0 },
{ Register::FIFO_CONFIG_0, 0, FIFO_CONFIG_0_BIT::tag }, // fifo_water_mark_level_trigger_retain<6:0>
{ Register::FIFO_CONFIG_1, FIFO_CONFIG_1_BIT::fifo_mode, 0 },
};
};
} // namespace Bosch::BMI055::Gyroscope