New I2C devices

[owSlave2.git] / common / I2C / APDS9960.c

diff --git a/common/I2C/APDS9960.c b/common/I2C/APDS9960.c
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+// Copyright (c) 2015, Tobias Mueller tm(at)tm3d.de
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//  * Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+//  * Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the
+//    distribution.
+//  * All advertising materials mentioning features or use of this
+//    software must display the following acknowledgement: This product
+//    includes software developed by tm3d.de and its contributors.
+//  * Neither the name of tm3d.de nor the names of its contributors may
+//    be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#define F_CPU 8000000UL
+#include <avr/io.h>
+
+#include <util/delay.h>
+
+
+#include "USI_TWI_Master.h"
+#include "APDS9960.h"
+
+#define WC 0b01110010
+#define RC 0b01110011
+
+int8_t initAPDS9960() {
+       I2c_StartCondition();
+       I2c_WriteByte(WC);
+       I2c_WriteByte(0x80);
+       I2c_StartCondition();
+       I2c_WriteByte (RC);
+       uint8_t b1 =I2c_ReadByte(NO_ACK);
+       I2c_StopCondition();
+       if (b1==0xFF) return 0; else {
+               I2c_StartCondition();
+               I2c_WriteByte(WC);
+               I2c_WriteByte(0x80);
+               I2c_WriteByte(0x0B); //ALS Enable PowerON
+               I2c_StopCondition();
+       }
+       return 1;
+}
+void APDS9960setATime(uint8_t ATime) {
+       I2c_StartCondition();
+       I2c_WriteByte(WC);
+       I2c_WriteByte(0x81);
+       I2c_WriteByte(ATime); 
+       I2c_StopCondition();
+}
+void APDS9960setGain(uint8_t Gain) {
+       I2c_StartCondition();
+       I2c_WriteByte(WC);
+       I2c_WriteByte(0x8F);
+       I2c_WriteByte(Gain&0x03);
+       I2c_StopCondition();
+}
+uint8_t APDS9960getAVALID() {return 0;}
+uint8_t APDS9960getASAT() {return 0;}
+
+void APDS9960getRGBC(uint16_t* R,uint16_t* G,uint16_t* B,uint16_t* C) {
+       I2c_StartCondition();
+       I2c_WriteByte(WC);
+       I2c_WriteByte(0x94);
+       I2c_StartCondition();
+       I2c_WriteByte (RC);
+       *C=I2c_ReadByte(ACK)|I2c_ReadByte(ACK)<<8;
+       *R=I2c_ReadByte(ACK)|I2c_ReadByte(ACK)<<8;
+       *G=I2c_ReadByte(ACK)|I2c_ReadByte(ACK)<<8;
+       *B=I2c_ReadByte(ACK)|I2c_ReadByte(NO_ACK)<<8;
+       I2c_StopCondition();
+}
+
+
+/*
+uint8_t checkMAX44009(uint8_t nr) {
+       volatile uint8_t b1;
+       nr=(nr<<1)&0x02f;
+       
+       I2c_StartCondition();
+       I2c_WriteByte(0b10010100|nr);
+       I2c_WriteByte(0x03);
+       I2c_StartCondition();
+       I2c_WriteByte (0b10010101|nr);
+       b1 =I2c_ReadByte(NO_ACK);
+       I2c_StopCondition();
+       return b1!=0xFF;
+       
+}
+
+
+double MAX44009getlux(uint8_t nr)  {
+       volatile uint8_t b1,b2;
+       nr=(nr<<1)&0x02f;
+       
+       I2c_StartCondition();
+       I2c_WriteByte(0b10010100|nr);
+       I2c_WriteByte(0x03);
+       I2c_StartCondition();
+       I2c_WriteByte (0b10010101|nr);
+       b1 =I2c_ReadByte(NO_ACK);
+       I2c_StopCondition();
+       I2c_StartCondition();
+       I2c_WriteByte(0b10010100|nr);
+       I2c_WriteByte(0x04);
+       I2c_StartCondition();
+       I2c_WriteByte (0b10010101|nr);
+       b2 =I2c_ReadByte(NO_ACK);
+       I2c_StopCondition();
+       uint8_t exponent = (b1 & 0xF0) >> 4;// upper four bits of high byte register
+       uint8_t mantissa = (b1 & 0x0F) << 4;// lower four bits of high byte register =
+       // upper four bits of mantissa
+       mantissa += b2 & 0x0F;    // lower four bits of low byte register =
+       // lower four bits of mantissa
+       
+       return (double)mantissa * (double)(1 << (uint16_t)exponent) * 0.045;
+       
+       
+
+}
+*/
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