summaryrefslogtreecommitdiff
path: root/peripheral/libupm/src/hp20x/hp20x.cxx
diff options
context:
space:
mode:
Diffstat (limited to 'peripheral/libupm/src/hp20x/hp20x.cxx')
-rw-r--r--peripheral/libupm/src/hp20x/hp20x.cxx287
1 files changed, 0 insertions, 287 deletions
diff --git a/peripheral/libupm/src/hp20x/hp20x.cxx b/peripheral/libupm/src/hp20x/hp20x.cxx
deleted file mode 100644
index 73ae3e2..0000000
--- a/peripheral/libupm/src/hp20x/hp20x.cxx
+++ /dev/null
@@ -1,287 +0,0 @@
-/*
- * Author: Jon Trulson <jtrulson@ics.com>
- * Copyright (c) 2015 Intel Corporation.
- *
- * Permission is hereby granted, free of charge, to any person obtaining
- * a copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sublicense, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
- * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-#include <unistd.h>
-#include <math.h>
-#include <iostream>
-#include <string>
-#include <stdexcept>
-
-#include "hp20x.h"
-
-using namespace upm;
-using namespace std;
-
-
-HP20X::HP20X(int bus, uint8_t address):
- m_i2c(bus)
-{
- m_addr = address;
-
- mraa::Result rv;
- if ( (rv = m_i2c.address(m_addr)) != mraa::SUCCESS)
- {
- throw std::invalid_argument(std::string(__FUNCTION__) +
- ": I2c.address() failed");
- return;
- }
-}
-
-HP20X::~HP20X()
-{
-}
-
-bool HP20X::init(DSR_BITS_T dsr)
-{
- // wait for the device to report ready
- waitforDeviceReady();
-
- m_dsr = dsr;
-
- // enable compensation? Datasheet says yes, but a register readback
- // says no. Data does seem stable, so....
- compensationEnable(true);
-
- return true;
-}
-
-bool HP20X::isReady()
-{
- uint8_t intsrc = readReg(REG_INT_SRC);
-
- if (intsrc & INT_SRC_DEV_RDY)
- return true;
-
- return false;
-}
-
-bool HP20X::waitforDeviceReady()
-{
- const int maxRetries = 20;
-
- int retries = 0;
-
- while (retries < maxRetries)
- {
- if (isReady())
- return true;
-
- usleep(20000);
- retries++;
- }
-
- throw std::runtime_error(std::string(__FUNCTION__) +
- ": timeout waiting for device to become ready");
-
- return false;
-}
-
-bool HP20X::writeCmd(uint8_t cmd)
-{
- mraa::Result rv;
- if ((rv = m_i2c.writeByte(cmd)) != mraa::SUCCESS)
- {
- throw std::runtime_error(std::string(__FUNCTION__) +
- ": I2c.writeByte() failed");
- return false;
- }
-
- return true;
-}
-
-bool HP20X::writeReg(HP20X_REG_T reg, uint8_t data)
-{
- waitforDeviceReady();
-
- uint8_t r = CMD_WRITE_REG | reg;
-
- mraa::Result rv;
- if ((rv = m_i2c.writeReg(r, data)) != mraa::SUCCESS)
- {
- throw std::runtime_error(std::string(__FUNCTION__) +
- ": I2c.writeReg() failed");
- return false;
- }
-
- return true;
-}
-
-uint8_t HP20X::readReg(HP20X_REG_T reg)
-{
- uint8_t r = CMD_READ_REG | reg;
-
- return m_i2c.readReg(r);
-}
-
-int HP20X::readData()
-{
- uint8_t buf[3] = {0};
-
- if (!m_i2c.read(buf, 3))
- {
- throw std::runtime_error(std::string(__FUNCTION__) +
- ": I2c.read() failed");
- return 0;
- }
-
- // handle 24bit sign extension
- int minus = 1;
- if (buf[0] & 0x80)
- {
- // negative
- buf[0] &= 0x3f;
- minus = -1;
- }
-
- return ( minus * ((buf[0] << 16) | (buf[1] << 8) | buf[2]) );
-}
-
-float HP20X::getTemperature()
-{
- // wait for the device to report ready
- waitforDeviceReady();
-
- // start conversion, T only
- uint8_t cmd = CMD_ADC_CVT | (CHNL_T << CHNL_SHIFT) | (m_dsr << DSR_SHIFT);
- writeCmd(cmd);
-
- // wait for the device to report ready
- waitforDeviceReady();
-
- // now read the temperature
- writeCmd(CMD_READ_T);
-
- return ((float)readData() / 100.0);
-}
-
-float HP20X::getPressure()
-{
- // wait for the device to report ready
- waitforDeviceReady();
-
- // start conversion, PT only
- uint8_t cmd = CMD_ADC_CVT | (CHNL_PT << CHNL_SHIFT) | (m_dsr << DSR_SHIFT);
- writeCmd(cmd);
-
- // wait for the device to report ready
- waitforDeviceReady();
-
- // now read the pressure
- writeCmd(CMD_READ_P);
-
- return ((float)readData() / 100.0);
-}
-
-float HP20X::getAltitude()
-{
- // wait for the device to report ready
- waitforDeviceReady();
-
- // start conversion, PT only
- uint8_t cmd = CMD_ADC_CVT | (CHNL_PT << CHNL_SHIFT) | (m_dsr << DSR_SHIFT);
- writeCmd(cmd);
-
- // wait for the device to report ready
- waitforDeviceReady();
-
- // now read the pressure
- writeCmd(CMD_READ_A);
-
- return ((float)readData() / 100.0);
-}
-
-void HP20X::compensationEnable(bool enable)
-{
- if (enable)
- writeReg(REG_PARA, PARA_CMPS_EN);
- else
- writeReg(REG_PARA, 0);
-}
-
-bool HP20X::setInterruptEnable(uint8_t bits)
-{
- return writeReg(REG_INT_EN, bits);
-}
-
-bool HP20X::setInterruptConfig(uint8_t bits)
-{
- return writeReg(REG_INT_CFG, bits);
-}
-
-uint8_t HP20X::getInterruptSource()
-{
- return readReg(REG_INT_SRC);
-}
-
-void HP20X::setDSR(DSR_BITS_T dsr)
-{
- m_dsr = dsr;
-}
-
-void HP20X::recalibrateInternal()
-{
- waitforDeviceReady();
- writeCmd(CMD_ANA_CAL);
-}
-
-void HP20X::softReset()
-{
- waitforDeviceReady();
- writeCmd(CMD_SOFT_RST);
- waitforDeviceReady();
-}
-
-void HP20X::setAltitudeOffset(int16_t off)
-{
- writeReg(REG_ALT_OFF_LSB, (off & 0xff));
- writeReg(REG_ALT_OFF_MSB, ((off >> 8) & 0xff));
-}
-
-void HP20X::setPAThreshholds(int16_t low, int16_t med, int16_t high)
-{
- // low
- writeReg(REG_PA_L_TH_LSB, (low & 0xff));
- writeReg(REG_PA_L_TH_MSB, ((low >> 8) & 0xff));
-
- // medium
- writeReg(REG_PA_M_TH_LSB, (med & 0xff));
- writeReg(REG_PA_M_TH_MSB, ((med >> 8) & 0xff));
-
- // high
- writeReg(REG_PA_H_TH_LSB, (high & 0xff));
- writeReg(REG_PA_H_TH_MSB, ((high >> 8) & 0xff));
-}
-
-void HP20X::setTemperatureThreshholds(int8_t low, int8_t med, int8_t high)
-{
- // low
- writeReg(REG_T_L_TH, low);
-
- // medium
- writeReg(REG_T_M_TH, med);
-
- // high
- writeReg(REG_T_H_TH, high);
-}
-
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-06 07:40:54 +0000