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/**
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* Marlin 3D Printer Firmware
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* Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
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*
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* Based on Sprinter and grbl.
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* Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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/**
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* Driver for the Philips PCA9632 LED driver.
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* Written by Robert Mendon Feb 2017.
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*/
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#include "MarlinConfig.h"
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#if ENABLED(PCA9632)
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#include "pca9632.h"
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#include "leds.h"
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#include <Wire.h>
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#define PCA9632_MODE1_VALUE 0b00000001 //(ALLCALL)
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#define PCA9632_MODE2_VALUE 0b00010101 //(DIMMING, INVERT, CHANGE ON STOP,TOTEM)
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#define PCA9632_LEDOUT_VALUE 0b00101010
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/* Register addresses */
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#define PCA9632_MODE1 0x00
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#define PCA9632_MODE2 0x01
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#define PCA9632_PWM0 0x02
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#define PCA9632_PWM1 0x03
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#define PCA9632_PWM2 0x04
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#define PCA9632_PWM3 0x05
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#define PCA9632_GRPPWM 0x06
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#define PCA9632_GRPFREQ 0x07
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#define PCA9632_LEDOUT 0x08
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#define PCA9632_SUBADR1 0x09
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#define PCA9632_SUBADR2 0x0A
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#define PCA9632_SUBADR3 0x0B
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#define PCA9632_ALLCALLADDR 0x0C
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#define PCA9632_NO_AUTOINC 0x00
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#define PCA9632_AUTO_ALL 0x80
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#define PCA9632_AUTO_IND 0xA0
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#define PCA9632_AUTOGLO 0xC0
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#define PCA9632_AUTOGI 0xE0
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// Red LED0
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// Green LED1
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// Blue LED2
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#define PCA9632_RED 0x00
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#define PCA9632_GRN 0x02
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#define PCA9632_BLU 0x04
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#define LED_OFF 0x00
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#define LED_ON 0x01
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#define LED_PWM 0x02
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#define PCA9632_ADDRESS 0b01100000
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byte PCA_init = 0;
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static void PCA9632_WriteRegister(const byte addr, const byte regadd, const byte value) {
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Wire.beginTransmission(addr);
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Wire.write(regadd);
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Wire.write(value);
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Wire.endTransmission();
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}
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static void PCA9632_WriteAllRegisters(const byte addr, const byte regadd, const byte value1, const byte value2, const byte value3) {
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Wire.beginTransmission(addr);
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Wire.write(PCA9632_AUTO_IND | regadd);
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Wire.write(value1);
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Wire.write(value2);
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Wire.write(value3);
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Wire.endTransmission();
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}
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#if 0
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static byte PCA9632_ReadRegister(const byte addr, const byte regadd) {
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Wire.beginTransmission(addr);
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Wire.write(regadd);
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const byte value = Wire.read();
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Wire.endTransmission();
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return value;
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}
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#endif
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void pca9632_set_led_color(const LEDColor &color) {
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Wire.begin();
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if (!PCA_init) {
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PCA_init = 1;
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PCA9632_WriteRegister(PCA9632_ADDRESS,PCA9632_MODE1, PCA9632_MODE1_VALUE);
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PCA9632_WriteRegister(PCA9632_ADDRESS,PCA9632_MODE2, PCA9632_MODE2_VALUE);
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}
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const byte LEDOUT = (color.r ? LED_PWM << PCA9632_RED : 0)
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| (color.g ? LED_PWM << PCA9632_GRN : 0)
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| (color.b ? LED_PWM << PCA9632_BLU : 0);
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PCA9632_WriteAllRegisters(PCA9632_ADDRESS,PCA9632_PWM0, color.r, color.g, color.b);
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PCA9632_WriteRegister(PCA9632_ADDRESS,PCA9632_LEDOUT, LEDOUT);
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}
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#endif // PCA9632
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