GY-63_MS5611/libraries/PCA9635/PCA9635.h

#pragma once
//
//    FILE: PCA9635.h
//  AUTHOR: Rob Tillaart
//    DATE: 23-apr-2016
// VERSION: 0.4.6
// PURPOSE: Arduino library for PCA9635 I2C LED driver, 16 channel
//     URL: https://github.com/RobTillaart/PCA9635


#include "Arduino.h"
#include "Wire.h"


#define PCA9635_LIB_VERSION         (F("0.4.6"))


//  mode codes
// NEW
#define PCA963X_MODE1               0x00
#define PCA963X_MODE2               0x01
//  OLD
#define PCA9635_MODE1               0x00
#define PCA9635_MODE2               0x01


//  0x80 bit ==> Auto-Increment for all registers.
//               used in writeN() - see issue #9 PCA9634
//  NEW
#define PCA963X_PWM(x)              (0x82+(x))
#define PCA963X_GRPPWM              0x12
#define PCA963X_GRPFREQ             0x13
//  OLD
#define PCA9635_PWM(x)              (0x82+(x))
#define PCA9635_GRPPWM              0x12
#define PCA9635_GRPFREQ             0x13


//  check datasheet for details
//  NEW
#define PCA963X_LEDOUT_BASE         0x14    //  0x14..0x17
#define PCA963X_LEDOFF              0x00    //  default @ startup
#define PCA963X_LEDON               0x01
#define PCA963X_LEDPWM              0x02
#define PCA963X_LEDGRPPWM           0x03
//  OLD 
#define PCA9635_LEDOUT_BASE         0x14    //  0x14..0x17
#define PCA9635_LEDOFF              0x00    //  default @ startup
#define PCA9635_LEDON               0x01
#define PCA9635_LEDPWM              0x02
#define PCA9635_LEDGRPPWM           0x03

//  Error codes
// NEW
#define PCA963X_OK                  0x00
#define PCA963X_ERROR               0xFF
#define PCA963X_ERR_WRITE           0xFE
#define PCA963X_ERR_CHAN            0xFD
#define PCA963X_ERR_MODE            0xFC
#define PCA963X_ERR_REG             0xFB
#define PCA963X_ERR_I2C             0xFA
// OLD
#define PCA9635_OK                  0x00
#define PCA9635_ERROR               0xFF
#define PCA9635_ERR_WRITE           0xFE
#define PCA9635_ERR_CHAN            0xFD
#define PCA9635_ERR_MODE            0xFC
#define PCA9635_ERR_REG             0xFB
#define PCA9635_ERR_I2C             0xFA


//  Configuration bits MODE1 register
// NEW
#define PCA963X_MODE1_AUTOINCR2     0x80  //  ReadOnly,  0 = disable  1 = enable
#define PCA963X_MODE1_AUTOINCR1     0x40  //  ReadOnly,  bit1
#define PCA963X_MODE1_AUTOINCR0     0x20  //  ReadOnly,  bit0
#define PCA963X_MODE1_SLEEP         0x10  //  0 = normal       1 = sleep
#define PCA963X_MODE1_SUB1          0x08  //  0 = disable      1 = enable
#define PCA963X_MODE1_SUB2          0x04  //  0 = disable      1 = enable
#define PCA963X_MODE1_SUB3          0x02  //  0 = disable      1 = enable
#define PCA963X_MODE1_ALLCALL       0x01  //  0 = disable      1 = enable
#define PCA963X_MODE1_NONE          0x00
// OLD
#define PCA9635_MODE1_AUTOINCR2     0x80  //  ReadOnly, 0 = disable  1 = enable
#define PCA9635_MODE1_AUTOINCR1     0x40  //  ReadOnly, bit1
#define PCA9635_MODE1_AUTOINCR0     0x20  //  ReadOnly, bit0
#define PCA9635_MODE1_SLEEP         0x10  //  0 = normal       1 = sleep
#define PCA9635_MODE1_SUB1          0x08  //  0 = disable      1 = enable
#define PCA9635_MODE1_SUB2          0x04  //  0 = disable      1 = enable
#define PCA9635_MODE1_SUB3          0x02  //  0 = disable      1 = enable
#define PCA9635_MODE1_ALLCALL       0x01  //  0 = disable      1 = enable
#define PCA9635_MODE1_NONE          0x00


//  Configuration bits MODE2 register
//  NEW
#define PCA963X_MODE2_BLINK         0x20  //  0 = dim          1 = blink
#define PCA963X_MODE2_INVERT        0x10  //  0 = normal       1 = inverted
#define PCA963X_MODE2_ACK           0x08  //  0 = on STOP      1 = on ACK
#define PCA963X_MODE2_TOTEMPOLE     0x04  //  0 = open drain   1 = totem-pole
#define PCA963X_MODE2_NONE          0x00
//  OLD
#define PCA9635_MODE2_BLINK         0x20  //  0 = dim          1 = blink
#define PCA9635_MODE2_INVERT        0x10  //  0 = normal       1 = inverted
#define PCA9635_MODE2_ACK           0x08  //  0 = on STOP      1 = on ACK
#define PCA9635_MODE2_TOTEMPOLE     0x04  //  0 = open drain   1 = totem-pole
#define PCA9635_MODE2_NONE          0x00


//  NOT IMPLEMENTED YET (TODO check)
//
//  Registers in which the ALLCALL and sub-addresses are stored
//  NEW
#define PCA963X_SUBADR(x)           (0x17 +(x))  //  x = 1..3
#define PCA963X_ALLCALLADR          0x1B
//  OLD
#define PCA9635_SUBADR(x)           (0x17+(x))  //  x = 1..3
#define PCA9635_ALLCALLADR          0x1B


//  Standard ALLCALL and sub-addresses --> only work for write commands and NOT for read commands
//  TODO
//#define PCA963X_ALLCALL             0x70            //  TDS of chip says 0xE0, however,
                                                    //  in this library the LSB is added during the write command
                                                    //                 (0xE0 --> 0b11100000, 0x70 --> 0b1110000)
//#define PCA963X_SUB1                0x71            //  see line above (0xE2 --> 0x71)
//#define PCA963X_SUB2                0x72            //  see line above (0xE4 --> 0x72)
//#define PCA963X_SUB3                0x74            //  see line above (0xE8 --> 0x74)





/////////////////////////////////////////////////////
//
//  CLASS
//
class PCA9635
{
public:
  explicit PCA9635(const uint8_t deviceAddress, TwoWire *wire = &Wire);

#if defined (ESP8266) || defined(ESP32)
  bool     begin(int sda, int scl,
                     uint8_t mode1_mask = PCA963X_MODE1_ALLCALL,
                     uint8_t mode2_mask = PCA963X_MODE2_NONE);
#endif
  bool     begin(uint8_t mode1_mask = PCA963X_MODE1_ALLCALL,
                 uint8_t mode2_mask = PCA963X_MODE2_NONE);
  bool     isConnected();


  /////////////////////////////////////////////////////
  //
  //  CONFIGURATION
  //
  uint8_t  configure(uint8_t mode1_mask, uint8_t mode2_mask);
  uint8_t  channelCount();

  uint8_t  setLedDriverMode(uint8_t channel, uint8_t mode);
  uint8_t  getLedDriverMode(uint8_t channel);

  //  reg = 1, 2  check datasheet for values
  uint8_t  writeMode(uint8_t reg, uint8_t value);
  uint8_t  readMode(uint8_t reg);
  //  convenience wrappers
  uint8_t  setMode1(uint8_t value);
  uint8_t  setMode2(uint8_t value);
  uint8_t  getMode1();
  uint8_t  getMode2();

  void     setGroupPWM(uint8_t value);
  uint8_t  getGroupPWM();

  void     setGroupFREQ(uint8_t value);
  uint8_t  getGroupFREQ();


  /////////////////////////////////////////////////////
  //
  //  WRITE
  //
  //  single PWM setting
  uint8_t  write1(uint8_t channel, uint8_t value);

  //  RGB setting, write three consecutive PWM registers
  uint8_t  write3(uint8_t channel, uint8_t R, uint8_t G, uint8_t B);

  //  generic worker, write N consecutive PWM registers
  uint8_t  writeN(uint8_t channel, uint8_t* arr, uint8_t count);

  //  generic worker, write N consecutive PWM registers without Stop command
  uint8_t  writeN_noStop(uint8_t channel, uint8_t* arr, uint8_t count);

  //  write stop command to end transmission
  uint8_t  writeStop();


  /////////////////////////////////////////////////////
  //
  //  ERROR
  //
  //  note error flag is reset after read!
  int      lastError();


  /////////////////////////////////////////////////////
  //
  //  SUB CALL  -  ALL CALL  (since 0.2.0)
  //
  //  nr = { 1, 2, 3 }
  bool     enableSubCall(uint8_t nr);
  bool     disableSubCall(uint8_t nr);
  bool     isEnabledSubCall(uint8_t nr);
  bool     setSubCallAddress(uint8_t nr, uint8_t address);
  uint8_t  getSubCallAddress(uint8_t nr);

  bool     enableAllCall();
  bool     disableAllCall();
  bool     isEnabledAllCall();
  bool     setAllCallAddress(uint8_t address);
  uint8_t  getAllCallAddress();


  /////////////////////////////////////////////////////
  //
  //  OE - Output Enable control
  //
  bool     setOutputEnablePin(uint8_t pin);
  bool     setOutputEnable(bool on);
  uint8_t  getOutputEnable();


  /////////////////////////////////////////////////////
  //
  //  EXPERIMENTAL
  //
  //  0.4.4
  int I2C_SoftwareReset(uint8_t method);
  //  0.4.5
  //  writing reg 14-17  LEDOUT
  //  reg   LEDS
  //  0     0..3
  //  1     4..7
  //  2     8..11
  //  3     12..15
  uint8_t  writeLedOut(uint8_t reg, uint8_t mask);
  uint8_t  readLedOut(uint8_t reg);
  uint8_t  setLedDriverMode(uint8_t mode);


private:
  //  DIRECT CONTROL
  uint8_t  writeReg(uint8_t reg, uint8_t value);  //  returns error status.
  uint8_t  readReg(uint8_t reg);

  uint8_t  _address;
  int      _error;
  uint8_t  _channelCount = 16;
  uint8_t  _OutputEnablePin;

  TwoWire*  _wire;
};


//  -- END OF FILE --