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amiro-os / include / amiro / power / ltc4412.hpp @ 9090cc7e

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1 58fe0e0b Thomas Schöpping
/*
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 * LTC4412 - PowerPath Controller
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 */
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#ifndef AMIRO_LTC4412_H_
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#define AMIRO_LTC4412_H_
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#include <hal.h>
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namespace amiro {
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class BaseLTC4412
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{
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public:
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  BaseLTC4412()
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  {}
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  virtual ~BaseLTC4412()
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  {}
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  virtual bool isPluggedIn() const = 0;
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};
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class BaseLTC4412wEN : public BaseLTC4412
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{
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public:
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  BaseLTC4412wEN()
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  {}
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  virtual ~BaseLTC4412wEN()
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  {}
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  virtual void enable(const bool enable = true) = 0;
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  virtual bool isEnabled() const = 0;
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  virtual bool isPluggedIn() const = 0;
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};
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template <uintptr_t STAT_PadGrp, uint8_t STAT_Pad>
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class LTC4412 : public BaseLTC4412
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{
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public:
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  LTC4412()
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  {}
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  virtual ~LTC4412()
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  {}
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  bool isPluggedIn() const
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  {
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    return (palReadPad((GPIO_TypeDef*)STAT_PadGrp, STAT_Pad) == PAL_HIGH);
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  }
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};
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template <uintptr_t STAT_PadGrp, uint8_t STAT_Pad, uintptr_t EN_PadGrp, uint8_t EN_Pad>
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class LTC4412wEN : public BaseLTC4412wEN
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{
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private:
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  bool is_enabled;
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public:
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  LTC4412wEN(const bool enable = false) :
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    is_enabled(enable)
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  {
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    this->enable(enable);
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  }
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  virtual ~LTC4412wEN()
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  {}
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  void enable(const bool enable = true)
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  {
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    // writing to a port is not atomic, thus the system must be locked
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    chSysLock();
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    palWritePad((GPIO_TypeDef*)EN_PadGrp, EN_Pad, enable? PAL_LOW : PAL_HIGH);
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    this->is_enabled = enable;
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    chSysUnlock();
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  }
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  bool isEnabled() const
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  {
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    return this->is_enabled;
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  }
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  bool isPluggedIn() const
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  {
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    return (palReadPad((GPIO_TypeDef*)STAT_PadGrp, STAT_Pad) == PAL_HIGH);
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  }
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};
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}
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#endif /* AMIRO_LTC4412_H_ */