Marlin_Firmware/Marlin/pca9632.cpp
2017-07-28 02:27:16 -05:00

118 lines
3.3 KiB
C++

/**
* Marlin 3D Printer Firmware
* Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
/*
* Driver for the Philips PCA9632 LED driver.
* Written by Robert Mendon Feb 2017.
*/
#include "MarlinConfig.h"
#if ENABLED(PCA9632)
#include "pca9632.h"
#define PCA9632_MODE1_VALUE 0b00000001 //(ALLCALL)
#define PCA9632_MODE2_VALUE 0b00010101 //(DIMMING, INVERT, CHANGE ON STOP,TOTEM)
#define PCA9632_LEDOUT_VALUE 0b00101010
/* Register addresses */
#define PCA9632_MODE1 0x00
#define PCA9632_MODE2 0x01
#define PCA9632_PWM0 0x02
#define PCA9632_PWM1 0x03
#define PCA9632_PWM2 0x04
#define PCA9632_PWM3 0x05
#define PCA9632_GRPPWM 0x06
#define PCA9632_GRPFREQ 0x07
#define PCA9632_LEDOUT 0X08
#define PCA9632_SUBADR1 0x09
#define PCA9632_SUBADR2 0x0A
#define PCA9632_SUBADR3 0x0B
#define PCA9632_ALLCALLADDR 0x0C
#define PCA9632_NO_AUTOINC 0x00
#define PCA9632_AUTO_ALL 0x80
#define PCA9632_AUTO_IND 0xA0
#define PCA9632_AUTOGLO 0xC0
#define PCA9632_AUTOGI 0xE0
// Red LED0
// Green LED1
// Blue LED2
#define PCA9632_RED 0x00
#define PCA9632_GRN 0x02
#define PCA9632_BLU 0x04
#define LED_OFF 0x00
#define LED_ON 0x01
#define LED_PWM 0x02
#define PCA9632_ADDRESS 0b01100000
byte PCA_init = 0;
static void PCA9632_WriteRegister(const byte addr, const byte regadd, const byte value) {
Wire.beginTransmission(addr);
Wire.write(regadd);
Wire.write(value);
Wire.endTransmission();
}
static void PCA9632_WriteAllRegisters(const byte addr, const byte regadd, const byte value1, const byte value2, const byte value3) {
Wire.beginTransmission(addr);
Wire.write(PCA9632_AUTO_IND | regadd);
Wire.write(value1);
Wire.write(value2);
Wire.write(value3);
Wire.endTransmission();
}
#if 0
static byte PCA9632_ReadRegister(const byte addr, const byte regadd) {
Wire.beginTransmission(addr);
Wire.write(regadd);
const byte value = Wire.read();
Wire.endTransmission();
return value;
}
#endif
void PCA9632_SetColor(const byte r, const byte g, const byte b) {
if (!PCA_init) {
PCA_init = 1;
Wire.begin();
PCA9632_WriteRegister(PCA9632_ADDRESS,PCA9632_MODE1, PCA9632_MODE1_VALUE);
PCA9632_WriteRegister(PCA9632_ADDRESS,PCA9632_MODE2, PCA9632_MODE2_VALUE);
}
const byte LEDOUT = (r ? LED_PWM << PCA9632_RED : 0)
| (g ? LED_PWM << PCA9632_GRN : 0)
| (b ? LED_PWM << PCA9632_BLU : 0);
PCA9632_WriteAllRegisters(PCA9632_ADDRESS,PCA9632_PWM0, r, g, b);
PCA9632_WriteRegister(PCA9632_ADDRESS,PCA9632_LEDOUT, LEDOUT);
}
#endif // PCA9632