Krishan Bhagat / Mbed 2 deprecated GestureSensor_Test

Uses the APDS_9960 Digital Proximity, Ambient Light, RGB and Gesture Sensor library to play detected gesture sounds on a speaker from the SDcard

Dependencies:   mbed SDFileSystem wave_player

glibr.cpp@0:437ae08befe3, 2015-03-05 (annotated)

Committer:
kbhagat6
Date:
Thu Mar 05 04:53:07 2015 +0000
Revision:
0:437ae08befe3
Child:
1:c7215f5f9a72
current

Who changed what in which revision?

UserRevisionLine numberNew contents of line
kbhagat6 0:437ae08befe3 1 #include "glibr.h"
kbhagat6 0:437ae08befe3 2 #include "mbed.h"
kbhagat6 0:437ae08befe3 3
kbhagat6 0:437ae08befe3 4
kbhagat6 0:437ae08befe3 5
kbhagat6 0:437ae08befe3 6
kbhagat6 0:437ae08befe3 7 glibr::glibr(PinName sda, PinName scl):i2c(sda, scl){
kbhagat6 0:437ae08befe3 8
kbhagat6 0:437ae08befe3 9 }
kbhagat6 0:437ae08befe3 10
kbhagat6 0:437ae08befe3 11 glibr::~glibr(){
kbhagat6 0:437ae08befe3 12
kbhagat6 0:437ae08befe3 13 }
kbhagat6 0:437ae08befe3 14
kbhagat6 0:437ae08befe3 15 uint8_t glibr::ginit(){
kbhagat6 0:437ae08befe3 16 uint8_t id;
kbhagat6 0:437ae08befe3 17
kbhagat6 0:437ae08befe3 18 // if( !wireReadDataByte(APDS9960_ID, id) ) {
kbhagat6 0:437ae08befe3 19
kbhagat6 0:437ae08befe3 20 id=I2CreadByte(APDS9960_I2C_ADDR, APDS9960_ID);
kbhagat6 0:437ae08befe3 21
kbhagat6 0:437ae08befe3 22 if( (!(id == APDS9960_ID_1 || id == APDS9960_ID_2))||id==ERROR) {
kbhagat6 0:437ae08befe3 23 return false;
kbhagat6 0:437ae08befe3 24 }
kbhagat6 0:437ae08befe3 25
kbhagat6 0:437ae08befe3 26 if(!setMode(ALL, OFF)) {
kbhagat6 0:437ae08befe3 27 return false;
kbhagat6 0:437ae08befe3 28 }
kbhagat6 0:437ae08befe3 29 if(I2CwriteByte(APDS9960_I2C_ADDR,APDS9960_ATIME, DEFAULT_ATIME)){
kbhagat6 0:437ae08befe3 30 return false;
kbhagat6 0:437ae08befe3 31 }
kbhagat6 0:437ae08befe3 32 if(I2CwriteByte(APDS9960_I2C_ADDR,APDS9960_WTIME, DEFAULT_WTIME)){
kbhagat6 0:437ae08befe3 33 return false;
kbhagat6 0:437ae08befe3 34 }
kbhagat6 0:437ae08befe3 35 if(I2CwriteByte(APDS9960_I2C_ADDR,APDS9960_PPULSE, DEFAULT_PROX_PPULSE)){
kbhagat6 0:437ae08befe3 36 return false;
kbhagat6 0:437ae08befe3 37 }
kbhagat6 0:437ae08befe3 38 if(I2CwriteByte(APDS9960_I2C_ADDR,APDS9960_POFFSET_UR, DEFAULT_POFFSET_UR)){
kbhagat6 0:437ae08befe3 39 return false;
kbhagat6 0:437ae08befe3 40 }
kbhagat6 0:437ae08befe3 41 if(I2CwriteByte(APDS9960_I2C_ADDR,APDS9960_POFFSET_DL, DEFAULT_POFFSET_DL)){
kbhagat6 0:437ae08befe3 42 return false;
kbhagat6 0:437ae08befe3 43 }
kbhagat6 0:437ae08befe3 44 if(I2CwriteByte(APDS9960_I2C_ADDR,APDS9960_CONFIG1, DEFAULT_CONFIG1)){
kbhagat6 0:437ae08befe3 45 return false;
kbhagat6 0:437ae08befe3 46 }
kbhagat6 0:437ae08befe3 47
kbhagat6 0:437ae08befe3 48 if( !setLEDDrive(DEFAULT_LDRIVE) ) {
kbhagat6 0:437ae08befe3 49 return false;
kbhagat6 0:437ae08befe3 50 }
kbhagat6 0:437ae08befe3 51
kbhagat6 0:437ae08befe3 52 if( !setProximityGain(DEFAULT_PGAIN) ) {
kbhagat6 0:437ae08befe3 53 return false;
kbhagat6 0:437ae08befe3 54 }
kbhagat6 0:437ae08befe3 55 if( !setAmbientLightGain(DEFAULT_AGAIN) ) {
kbhagat6 0:437ae08befe3 56 return false;
kbhagat6 0:437ae08befe3 57 }
kbhagat6 0:437ae08befe3 58 if( !setProxIntLowThresh(DEFAULT_PILT) ) {
kbhagat6 0:437ae08befe3 59 return false;
kbhagat6 0:437ae08befe3 60 }
kbhagat6 0:437ae08befe3 61
kbhagat6 0:437ae08befe3 62
kbhagat6 0:437ae08befe3 63
kbhagat6 0:437ae08befe3 64
kbhagat6 0:437ae08befe3 65
kbhagat6 0:437ae08befe3 66 return id;
kbhagat6 0:437ae08befe3 67 }
kbhagat6 0:437ae08befe3 68
kbhagat6 0:437ae08befe3 69
kbhagat6 0:437ae08befe3 70
kbhagat6 0:437ae08befe3 71
kbhagat6 0:437ae08befe3 72 /**
kbhagat6 0:437ae08befe3 73 * @brief Enables or disables a feature in the APDS-9960
kbhagat6 0:437ae08befe3 74 *
kbhagat6 0:437ae08befe3 75 * @param[in] mode which feature to enable
kbhagat6 0:437ae08befe3 76 * @param[in] enable ON (1) or OFF (0)
kbhagat6 0:437ae08befe3 77 * @return True if operation success. False otherwise.
kbhagat6 0:437ae08befe3 78 */
kbhagat6 0:437ae08befe3 79 bool glibr::setMode(uint8_t mode, uint8_t enable)
kbhagat6 0:437ae08befe3 80 {
kbhagat6 0:437ae08befe3 81 uint8_t reg_val;
kbhagat6 0:437ae08befe3 82
kbhagat6 0:437ae08befe3 83 /* Read current ENABLE register */
kbhagat6 0:437ae08befe3 84 reg_val = getMode();
kbhagat6 0:437ae08befe3 85 if( reg_val == ERROR ) {
kbhagat6 0:437ae08befe3 86 return false;
kbhagat6 0:437ae08befe3 87 }
kbhagat6 0:437ae08befe3 88
kbhagat6 0:437ae08befe3 89 /* Change bit(s) in ENABLE register */
kbhagat6 0:437ae08befe3 90 enable = enable & 0x01;
kbhagat6 0:437ae08befe3 91 if( mode >= 0 && mode <= 6 ) {
kbhagat6 0:437ae08befe3 92 if (enable) {
kbhagat6 0:437ae08befe3 93 reg_val |= (1 << mode);
kbhagat6 0:437ae08befe3 94 } else {
kbhagat6 0:437ae08befe3 95 reg_val &= ~(1 << mode);
kbhagat6 0:437ae08befe3 96 }
kbhagat6 0:437ae08befe3 97 } else if( mode == ALL ) {
kbhagat6 0:437ae08befe3 98 if (enable) {
kbhagat6 0:437ae08befe3 99 reg_val = 0x7F;
kbhagat6 0:437ae08befe3 100 } else {
kbhagat6 0:437ae08befe3 101 reg_val = 0x00;
kbhagat6 0:437ae08befe3 102 }
kbhagat6 0:437ae08befe3 103 }
kbhagat6 0:437ae08befe3 104
kbhagat6 0:437ae08befe3 105 /* Write value back to ENABLE register */
kbhagat6 0:437ae08befe3 106 if(I2CwriteByte(APDS9960_I2C_ADDR,APDS9960_ENABLE, reg_val)){
kbhagat6 0:437ae08befe3 107 return false;
kbhagat6 0:437ae08befe3 108 }
kbhagat6 0:437ae08befe3 109
kbhagat6 0:437ae08befe3 110
kbhagat6 0:437ae08befe3 111
kbhagat6 0:437ae08befe3 112 return true;
kbhagat6 0:437ae08befe3 113 }
kbhagat6 0:437ae08befe3 114
kbhagat6 0:437ae08befe3 115 uint8_t glibr::getMode()
kbhagat6 0:437ae08befe3 116 {
kbhagat6 0:437ae08befe3 117 return I2CreadByte(APDS9960_I2C_ADDR, APDS9960_ENABLE);
kbhagat6 0:437ae08befe3 118 }
kbhagat6 0:437ae08befe3 119
kbhagat6 0:437ae08befe3 120 bool glibr::setLEDDrive(uint8_t drive)
kbhagat6 0:437ae08befe3 121 {
kbhagat6 0:437ae08befe3 122 uint8_t val;
kbhagat6 0:437ae08befe3 123
kbhagat6 0:437ae08befe3 124 /* Read value from CONTROL register */
kbhagat6 0:437ae08befe3 125
kbhagat6 0:437ae08befe3 126 val=I2CreadByte(APDS9960_I2C_ADDR,APDS9960_CONTROL);
kbhagat6 0:437ae08befe3 127 if(val==ERROR){
kbhagat6 0:437ae08befe3 128 return false;
kbhagat6 0:437ae08befe3 129 }
kbhagat6 0:437ae08befe3 130 /* Set bits in register to given value */
kbhagat6 0:437ae08befe3 131 drive &= 0x03;
kbhagat6 0:437ae08befe3 132 drive = drive << 6;
kbhagat6 0:437ae08befe3 133 //val &= 0b00111111;
kbhagat6 0:437ae08befe3 134 val &= 0x3F;
kbhagat6 0:437ae08befe3 135 val |= drive;
kbhagat6 0:437ae08befe3 136
kbhagat6 0:437ae08befe3 137 /* Write register value back into CONTROL register */
kbhagat6 0:437ae08befe3 138 if( I2CwriteByte(APDS9960_I2C_ADDR,APDS9960_CONTROL, val) ) {
kbhagat6 0:437ae08befe3 139 return false;
kbhagat6 0:437ae08befe3 140 }
kbhagat6 0:437ae08befe3 141
kbhagat6 0:437ae08befe3 142 return true;
kbhagat6 0:437ae08befe3 143 }
kbhagat6 0:437ae08befe3 144
kbhagat6 0:437ae08befe3 145 bool glibr::setProximityGain(uint8_t drive)
kbhagat6 0:437ae08befe3 146 {
kbhagat6 0:437ae08befe3 147 uint8_t val;
kbhagat6 0:437ae08befe3 148
kbhagat6 0:437ae08befe3 149 /* Read value from CONTROL register */
kbhagat6 0:437ae08befe3 150 if( !wireReadDataByte(APDS9960_CONTROL, val) ) {
kbhagat6 0:437ae08befe3 151 return false;
kbhagat6 0:437ae08befe3 152 }
kbhagat6 0:437ae08befe3 153
kbhagat6 0:437ae08befe3 154 /* Set bits in register to given value */
kbhagat6 0:437ae08befe3 155 drive &= 0b00000011;
kbhagat6 0:437ae08befe3 156 drive = drive << 2;
kbhagat6 0:437ae08befe3 157 val &= 0b11110011;
kbhagat6 0:437ae08befe3 158 val |= drive;
kbhagat6 0:437ae08befe3 159
kbhagat6 0:437ae08befe3 160 /* Write register value back into CONTROL register */
kbhagat6 0:437ae08befe3 161 if( !wireWriteDataByte(APDS9960_CONTROL, val) ) {
kbhagat6 0:437ae08befe3 162 return false;
kbhagat6 0:437ae08befe3 163 }
kbhagat6 0:437ae08befe3 164
kbhagat6 0:437ae08befe3 165 return true;
kbhagat6 0:437ae08befe3 166 }
kbhagat6 0:437ae08befe3 167
kbhagat6 0:437ae08befe3 168
kbhagat6 0:437ae08befe3 169
kbhagat6 0:437ae08befe3 170
kbhagat6 0:437ae08befe3 171 int glibr::I2CwriteByte(char address, char subAddress, char data)
kbhagat6 0:437ae08befe3 172 {
kbhagat6 0:437ae08befe3 173 int ret;
kbhagat6 0:437ae08befe3 174 char cmd[2] = {subAddress, data};
kbhagat6 0:437ae08befe3 175 ret=i2c.write(address<<1, cmd, 2); //if ret is 1, then not acked.
kbhagat6 0:437ae08befe3 176 return ret;
kbhagat6 0:437ae08befe3 177 }
kbhagat6 0:437ae08befe3 178
kbhagat6 0:437ae08befe3 179 uint8_t glibr::I2CreadByte(char address, char subAddress)
kbhagat6 0:437ae08befe3 180 {
kbhagat6 0:437ae08befe3 181 char data; // store the register data
kbhagat6 0:437ae08befe3 182
kbhagat6 0:437ae08befe3 183 if(i2c.write(address<<1, &subAddress, 1, true)){
kbhagat6 0:437ae08befe3 184 return ERROR; //7 bit //not acked
kbhagat6 0:437ae08befe3 185 }
kbhagat6 0:437ae08befe3 186 i2c.read(address<<1, &data, 1);
kbhagat6 0:437ae08befe3 187 return data;
kbhagat6 0:437ae08befe3 188
kbhagat6 0:437ae08befe3 189 }