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Diffstat (limited to 'src/drivers/Bma421.h')
-rw-r--r-- | src/drivers/Bma421.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/src/drivers/Bma421.h b/src/drivers/Bma421.h new file mode 100644 index 00000000..da021cbf --- /dev/null +++ b/src/drivers/Bma421.h @@ -0,0 +1,43 @@ +#pragma once +#include <drivers/Bma421_C/bma4_defs.h> + +namespace Pinetime { + namespace Drivers { + class TwiMaster; + class Bma421 { + public: + struct Values { + uint32_t steps; + int16_t x; + int16_t y; + int16_t z; + }; + Bma421(TwiMaster& twiMaster, uint8_t twiAddress); + Bma421(const Bma421&) = delete; + Bma421& operator=(const Bma421&) = delete; + Bma421(Bma421&&) = delete; + Bma421& operator=(Bma421&&) = delete; + + /// The chip freezes the TWI bus after the softreset operation. Softreset is separated from the + /// Init() method to allow the caller to uninit and then reinit the TWI device after the softreset. + void SoftReset(); + void Init(); + Values Process(); + void ResetStepCounter(); + + void Read(uint8_t registerAddress, uint8_t *buffer, size_t size); + void Write(uint8_t registerAddress, const uint8_t *data, size_t size); + + bool IsOk() const; + + private: + void Reset(); + + TwiMaster& twiMaster; + uint8_t deviceAddress = 0x18; + struct bma4_dev bma; + bool isOk = false; + bool isResetOk = false; + }; + } +}
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