/* See the file "LICENSE" for the full license governing this code. */

#include "PCA9634.h"


static const uint8_t HydroSense_led_map[] = {2, // signal strength green
                                      6, // gps green
                                      7}; // error

PCA9634::PCA9634(uint8_t address){
    _address = address;
    _on_value = 50;
}

void PCA9634::begin(){
    // initalize all leds to default PWM control
    int i;
    write_reg( PCA9634_REG_MODE1, 0 );
    write_reg( PCA9634_REG_MODE2, 0x16 ); // INVRT | OUTDRV | OUTNE1
    write_reg( PCA9634_REG_LEDOUT0, PCA9634_ALL_LED_TO_PWM );
    write_reg( PCA9634_REG_LEDOUT1, PCA9634_ALL_LED_TO_PWM );
    for (i=0; i < 8; i++){
        set_brightness(i, 0);
    }
}

void PCA9634::set_on_value(uint8_t on){
    _on_value = on;
}

uint8_t PCA9634::set_mode1(uint8_t mode1){
    return write_reg( PCA9634_REG_MODE1, mode1 );
}

uint8_t PCA9634::set_mode2(uint8_t mode2){
    return write_reg (PCA9634_REG_MODE2, mode2);
}

uint8_t PCA9634::set_brightness(uint8_t led, uint8_t duty_cycle){
    // limit led to a 3-bit unsigned value.
    return write_reg( PCA9634_REG_PWM0 + ( (uint8_t) (led & 0x7) ),
                     duty_cycle );
}

uint8_t PCA9634::set_all_brightness(uint8_t color0, uint8_t color1, uint8_t color2, uint8_t color3, uint8_t color4, uint8_t color5, uint8_t color6, uint8_t color7){
    Wire.beginTransmission( _address );
    Wire.write( PCA9634_REG_PWM0 + 0xA0 );
    Wire.write( color0 );
    Wire.write( color1 );
    Wire.write( color2 );
    Wire.write( color3 );
    Wire.write( color4 );
    Wire.write( color5 );
    Wire.write( color6 );
    Wire.write( color7 );
    return Wire.endTransmission( );
}
uint8_t PCA9634::write_reg(uint8_t reg, uint8_t value){
    Wire.beginTransmission( _address );
    Wire.write( reg );
    Wire.write( value );
    return Wire.endTransmission( );

}

void PCA9634::read_brightness (uint8_t led){
    Wire.beginTransmission(_address); //Comienza la transmisión
    Wire.write(PCA9634_REG_PWM0 + 0X80);
    Wire.endTransmission(); // Finaliza la transmisión
    
    Wire.requestFrom(_address, 8);  //solicita un numero de bytes al esclavo en la dirección address
    byte buff[8];    
    delay(100);
    Wire.readBytes(buff, 8);
    for (int i = 0; i < 8; i++) {
      Serial.print(" "); 
      Serial.print(buff[i], HEX);
    }
    Serial.println();
}