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ADXL345: Make some changes in cpp interface

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Signed-off-by: Adelin Dobre <adelin.dobre@rinftech.com>
This commit is contained in:
Adelin Dobre
2018-10-31 13:03:30 +02:00
committed by Stefan Andritoiu
parent 93622b0323
commit ff655c4eff
2 changed files with 24 additions and 25 deletions
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47
src/adxl345/adxl345.cxx
View File

@@ -29,6 +29,8 @@
#include <utility>
#include "math.h"
#include "adxl345.hpp"
#include "upm_string_parser.hpp"
#define READ_BUFFER_LENGTH 6
@@ -88,15 +90,10 @@
using namespace upm;
static bool operator!(mraa::MraaIo &mraaIo)
{
return mraaIo.getMraaDescriptors() == NULL;
}
Adxl345::Adxl345(int bus) : m_i2c(new mraa::I2c(bus))
Adxl345::Adxl345(int bus) : m_i2c(bus)
{
//init bus and reset chip
if ( m_i2c->address(ADXL345_I2C_ADDR) != mraa::SUCCESS ){
if ( m_i2c.address(ADXL345_I2C_ADDR) != mraa::SUCCESS ){
throw std::invalid_argument(std::string(__FUNCTION__) +
": i2c.address() failed");
return;
@@ -104,7 +101,7 @@ Adxl345::Adxl345(int bus) : m_i2c(new mraa::I2c(bus))
m_buffer[0] = ADXL345_POWER_CTL;
m_buffer[1] = ADXL345_POWER_ON;
if( m_i2c->write(m_buffer, 2) != mraa::SUCCESS){
if( m_i2c.write(m_buffer, 2) != mraa::SUCCESS){
throw std::runtime_error(std::string(__FUNCTION__) +
": i2c.write() control register failed");
return;
@@ -112,7 +109,7 @@ Adxl345::Adxl345(int bus) : m_i2c(new mraa::I2c(bus))
m_buffer[0] = ADXL345_DATA_FORMAT;
m_buffer[1] = ADXL345_16G | ADXL345_FULL_RES;
if( m_i2c->write(m_buffer, 2) != mraa::SUCCESS){
if( m_i2c.write(m_buffer, 2) != mraa::SUCCESS){
throw std::runtime_error(std::string(__FUNCTION__) +
": i2c.write() mode register failed");
return;
@@ -128,21 +125,25 @@ Adxl345::Adxl345(int bus) : m_i2c(new mraa::I2c(bus))
Adxl345::update();
}
Adxl345::Adxl345(std::string initStr) : mraaIo(initStr)
Adxl345::Adxl345(std::string initStr) : m_i2c(nullptr), mraaIo(initStr)
{
if(!mraaIo.i2cs.empty())
{
m_i2c = &mraaIo.i2cs[0];
mraa_io_descriptor* descs = mraaIo.getMraaDescriptors();
std::vector<std::string> upmTokens;
if(!mraaIo.getLeftoverStr().empty()) {
upmTokens = UpmStringParser::parse(mraaIo.getLeftoverStr());
}
else
{
if(!descs->i2cs) {
throw std::invalid_argument(std::string(__FUNCTION__) +
": mraa_i2c_init() failed");
": mraa_i2c_init() failed");
} else {
m_i2c = descs->i2cs[0];
}
m_buffer[0] = ADXL345_POWER_CTL;
m_buffer[1] = ADXL345_POWER_ON;
if( m_i2c->write(m_buffer, 2) != mraa::SUCCESS ){
if( m_i2c.write(m_buffer, 2) != mraa::SUCCESS ){
throw std::runtime_error(std::string(__FUNCTION__) +
": i2c.write() control register failed");
return;
@@ -150,7 +151,7 @@ Adxl345::Adxl345(std::string initStr) : mraaIo(initStr)
m_buffer[0] = ADXL345_DATA_FORMAT;
m_buffer[1] = ADXL345_16G | ADXL345_FULL_RES;
if( m_i2c->write(m_buffer, 2) != mraa::SUCCESS){
if( m_i2c.write(m_buffer, 2) != mraa::SUCCESS){
throw std::runtime_error(std::string(__FUNCTION__) +
": i2c.write() mode register failed");
return;
@@ -168,8 +169,6 @@ Adxl345::Adxl345(std::string initStr) : mraaIo(initStr)
Adxl345::~Adxl345()
{
if(!mraaIo)
delete m_i2c;
}
float*
@@ -192,9 +191,9 @@ Adxl345::getScale(){
uint8_t result;
m_i2c->writeByte(ADXL345_DATA_FORMAT);
m_i2c.writeByte(ADXL345_DATA_FORMAT);
result = m_i2c->readByte();
result = m_i2c.readByte();
return pow(2, (result & 0x03) + 1);
}
@@ -202,9 +201,9 @@ Adxl345::getScale(){
mraa::Result
Adxl345::update(void)
{
m_i2c->writeByte(ADXL345_XOUT_L);
m_i2c.writeByte(ADXL345_XOUT_L);
m_i2c->read(m_buffer, DATA_REG_SIZE);
m_i2c.read(m_buffer, DATA_REG_SIZE);
// x
m_rawaccel[0] = ((m_buffer[1] << 8 ) | m_buffer[0]);

2
src/adxl345/adxl345.hpp
View File

@@ -114,7 +114,7 @@ private:
float m_offsets[3];
int16_t m_rawaccel[3];
uint8_t m_buffer[READ_BUFFER_LENGTH];
mraa::I2c* m_i2c = NULL;
mraa::I2c m_i2c;
mraa::MraaIo mraaIo;
};