50 lines
1.4 KiB
C++
50 lines
1.4 KiB
C++
#pragma once
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#include <drivers/Bma421_C/bma4_defs.h>
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namespace Pinetime {
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namespace Drivers {
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class TwiMaster;
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class Bma421 {
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public:
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enum class DeviceTypes : uint8_t { Unknown, BMA421, BMA425 };
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struct Values {
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uint32_t steps;
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int16_t x;
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int16_t y;
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int16_t z;
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};
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Bma421(TwiMaster& twiMaster, uint8_t twiAddress);
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Bma421(const Bma421&) = delete;
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Bma421& operator=(const Bma421&) = delete;
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Bma421(Bma421&&) = delete;
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Bma421& operator=(Bma421&&) = delete;
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/// The chip freezes the TWI bus after the softreset operation. Softreset is separated from the
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/// Init() method to allow the caller to uninit and then reinit the TWI device after the softreset.
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void SoftReset();
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void Init();
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Values Process();
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void ResetStepCounter();
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void Read(uint8_t registerAddress, uint8_t* buffer, size_t size);
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void Write(uint8_t registerAddress, const uint8_t* data, size_t size);
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bool IsOk() const;
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DeviceTypes DeviceType() const;
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private:
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void Reset();
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TwiMaster& twiMaster;
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uint8_t deviceAddress = 0x18;
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struct bma4_dev bma;
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struct bma4_accel_config accel_conf; // Store the device configuration for later reference.
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bool isOk = false;
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bool isResetOk = false;
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DeviceTypes deviceType = DeviceTypes::Unknown;
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};
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}
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} |