70 lines
2.0 KiB
C
70 lines
2.0 KiB
C
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#include <Adafruit_I2CDevice.h>
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#include <Adafruit_SPIDevice.h>
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#include <Arduino.h>
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#ifndef Adafruit_BusIO_Register_h
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#define Adafruit_BusIO_Register_h
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typedef enum _Adafruit_BusIO_SPIRegType {
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ADDRBIT8_HIGH_TOREAD = 0,
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} Adafruit_BusIO_SPIRegType;
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/*!
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* @brief The class which defines a device register (a location to read/write data from)
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*/
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class Adafruit_BusIO_Register {
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public:
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Adafruit_BusIO_Register(Adafruit_I2CDevice *i2cdevice, uint16_t reg_addr,
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uint8_t width=1, uint8_t bitorder=LSBFIRST,
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uint8_t address_width=1);
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Adafruit_BusIO_Register(Adafruit_SPIDevice *spidevice, uint16_t reg_addr,
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Adafruit_BusIO_SPIRegType type,
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uint8_t width=1, uint8_t bitorder=LSBFIRST,
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uint8_t address_width=1);
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Adafruit_BusIO_Register(Adafruit_I2CDevice *i2cdevice,
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Adafruit_SPIDevice *spidevice,
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Adafruit_BusIO_SPIRegType type,
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uint16_t reg_addr,
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uint8_t width=1, uint8_t bitorder=LSBFIRST,
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uint8_t address_width=1);
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bool read(uint8_t *buffer, uint8_t len);
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bool read(uint8_t *value);
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bool read(uint16_t *value);
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uint32_t read(void);
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bool write(uint8_t *buffer, uint8_t len);
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bool write(uint32_t value, uint8_t numbytes=0);
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uint8_t width(void);
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void print(Stream *s=&Serial);
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void println(Stream *s=&Serial);
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private:
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Adafruit_I2CDevice *_i2cdevice;
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Adafruit_SPIDevice *_spidevice;
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Adafruit_BusIO_SPIRegType _spiregtype;
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uint16_t _address;
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uint8_t _width, _addrwidth, _bitorder;
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uint8_t _buffer[4]; // we wont support anything larger than uint32 for non-buffered read
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};
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/*!
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* @brief The class which defines a slice of bits from within a device register (a location to read/write data from)
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*/
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class Adafruit_BusIO_RegisterBits {
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public:
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Adafruit_BusIO_RegisterBits(Adafruit_BusIO_Register *reg, uint8_t bits, uint8_t shift);
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void write(uint32_t value);
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uint32_t read(void);
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private:
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Adafruit_BusIO_Register *_register;
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uint8_t _bits, _shift;
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};
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#endif //BusIO_Register_h
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