SI1143.cpp

00001 /*
00002  * SI1143.cpp
00003  *
00004  *  Created on: Jun 2, 2016
00005  *      Author: Adrian
00006  */
00007 
00008 #include "SI1143.h "
00009 
00010 SI1143::SI1143(I2C_RT* i2c)
00011 {
00012     this->i2c = i2c;
00013     this->config = new SI1143Config();
00014 }
00015 
00016 void SI1143::init(SI1143_MODE desiredMode){
00017     config->build(desiredMode);
00018     restart();
00019 }
00020 
00021 void SI1143::restart()
00022 {
00023     command(SI1143_RESET);
00024     osDelay(30);
00025     uint8_t writeValue;
00026 
00027     // Setting up LED Power to full
00028     writeValue = SI1143_HW_KEY_VAL0;
00029     i2c->write_RT((SI1143_IR_ADDRESS<<1),SI1143_HW_KEY,false,&writeValue,1);
00030     writeValue = config->getLed1Voltage();
00031     i2c->write_RT((SI1143_IR_ADDRESS<<1),SI1143_PS_LED21,false,&writeValue,1);
00032     writeValue = 0x0A;
00033     i2c->write_RT((SI1143_IR_ADDRESS<<1),SI1143_PS_LED3,false,&writeValue,1);
00034     writeValue = SI1143_ALS_IR_TASK + SI1143_ALS_VIS_TASK + SI1143_PS1_TASK +
00035             SI1143_PS2_TASK + SI1143_PS3_TASK;
00036     i2c->write_RT((SI1143_IR_ADDRESS<<1),SI1143_PARAM_WR,false,&writeValue,1);
00037     command(SI1143_PARAM_SET + (SI1143_CHLIST & 0x1F));
00038     writeValue = 0x04;
00039     i2c->write_RT((SI1143_IR_ADDRESS<<1),SI1143_PARAM_WR,false,&writeValue,1);
00040     command(SI1143_PARAM_SET + (SI1143_PS_ADC_MISC & 0x1F));
00041 
00042     i2c->write_RT((SI1143_IR_ADDRESS<<1),SI1143_INT_CFG,false,0,1);
00043     i2c->write_RT((SI1143_IR_ADDRESS<<1),SI1143_IRQ_ENABLE,false,0,1);
00044     i2c->write_RT((SI1143_IR_ADDRESS<<1),SI1143_IRQ_MODE1,false,0,1);
00045     i2c->write_RT((SI1143_IR_ADDRESS<<1),SI1143_IRQ_MODE2,false,0,1);
00046 }
00047 //
00048 void SI1143::command(uint8_t cmd)
00049 {
00050     uint8_t val;
00051 
00052     i2c->read_RT((SI1143_IR_ADDRESS<<1),SI1143_RESPONSE,false,&val,1);
00053     osDelay(100);
00054     while(val!=0)
00055     {
00056         i2c->write_RT((SI1143_IR_ADDRESS<<1),SI1143_COMMAND,false,SI1143_NOP,1);
00057         osDelay(10);
00058         i2c->read_RT((SI1143_IR_ADDRESS<<1),SI1143_RESPONSE,false,&val,1);
00059     }
00060     do{
00061         i2c->write_RT((SI1143_IR_ADDRESS<<1),SI1143_COMMAND,false,&cmd,1);
00062         osDelay(10);
00063         if(cmd==SI1143_RESET){
00064             break;
00065         }
00066         osDelay(10);
00067         i2c->read_RT((SI1143_IR_ADDRESS<<1),SI1143_RESPONSE,false,&val,1);
00068 
00069     }while(val==0);
00070 }
00071 
00072 int SI1143::getProximity(int numberOfMeasurements) // Read the data for the first LED
00073 {
00074     uint8_t lowByte;
00075     uint8_t highByte;
00076     int stack = 0;
00077     int proximity = 0;
00078 
00079     command(SI1143_PSALS_FORCE);
00080 
00081     for(int r=numberOfMeasurements; r>0; r=r-1)
00082     {
00083         i2c->read_RT((SI1143_IR_ADDRESS<<1),SI1143_PS1_DATA0,false,&lowByte,1);
00084         i2c->read_RT((SI1143_IR_ADDRESS<<1),SI1143_PS1_DATA1,false,&highByte,1);
00085         stack = stack + (highByte * 256) + lowByte;
00086     }
00087     proximity = stack / numberOfMeasurements;
00088 
00089     return proximity;
00090 }
00091 
00092 int SI1143::getAmbientLight(int numberOfMeasurements) // Read the data for ambient light
00093 {
00094 
00095     uint8_t lowByte;
00096     uint8_t highByte;
00097     int stack = 0;
00098     int ambientLight = 0;
00099 
00100     command(SI1143_PSALS_FORCE);
00101 
00102     for(int r=numberOfMeasurements; r>0; r=r-1)
00103     {
00104         i2c->read_RT((SI1143_IR_ADDRESS<<1),SI1143_ALS_VIS_DATA0,false,&lowByte,1);
00105         i2c->read_RT((SI1143_IR_ADDRESS<<1),SI1143_ALS_VIS_DATA1,false,&highByte,1);
00106         stack = stack + (highByte * 256) + lowByte;
00107     }
00108     ambientLight = stack / numberOfMeasurements;
00109 
00110     return ambientLight;
00111 }
00112 
00113 int SI1143::getInfraRedLight(int numberOfMeasurements) // Read the data for infrared light
00114 {
00115     uint8_t lowByte;
00116     uint8_t highByte;
00117     int stack = 0;
00118     int infraRedLight = 0;
00119 
00120     command(SI1143_PSALS_FORCE);
00121 
00122     for(int r=numberOfMeasurements; r>0; r=r-1)
00123     {
00124         i2c->read_RT((SI1143_IR_ADDRESS<<1),SI1143_ALS_IR_DATA0,false,&lowByte,1);
00125         i2c->read_RT((SI1143_IR_ADDRESS<<1),SI1143_ALS_IR_DATA1,false,&highByte,1);
00126         stack = stack + (highByte * 256) + lowByte;
00127     }
00128     infraRedLight = stack / numberOfMeasurements;
00129 
00130     return infraRedLight;
00131 }
00132 
00133 void SI1143::configureInterrupts(){
00134     uint8_t interruptEnableValue = config->getInterruptEnable();
00135 
00136     i2c->write_RT((SI1143_IR_ADDRESS<<1),SI1143_IRQ_ENABLE,false,0,1);
00137 }
00138 
00139 void SI1143::setProximitySensing1Threshold(){
00140     uint8_t thresholdLowByte = (config->getProximitySensing1Threshold()) & 0xFF;
00141     uint8_t thresholdHighByte = (config->getProximitySensing1Threshold()) >> 8;
00142 
00143     i2c->write_RT((SI1143_IR_ADDRESS<<1),SI1143_PS1_TH0,false,&thresholdLowByte,1);
00144     i2c->write_RT((SI1143_IR_ADDRESS<<1),SI1143_PS1_TH1,false,&thresholdHighByte,1);
00145 
00146 }
00147 
00148