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mma7660: throw exception(s) on fatal errors

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Signed-off-by: Jon Trulson <jtrulson@ics.com>
Signed-off-by: Mihai Tudor Panu <mihai.tudor.panu@intel.com>
This commit is contained in:
Jon Trulson 2015-09-09 12:02:56 -06:00 committed by Mihai Tudor Panu
parent 4f5b4d5886
commit 427dd6e851
1 changed files with 9 additions and 6 deletions
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15
src/mma7660/mma7660.cxx
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@ -23,6 +23,7 @@
*/
#include <iostream>
#include <stdexcept>
#include <string>
#include "mma7660.h"
@ -39,7 +40,8 @@ MMA7660::MMA7660(int bus, uint8_t address)
// setup our i2c link
if ( !(m_i2c = mraa_i2c_init(bus)) )
{
cerr << "MMA7660: mraa_i2c_init() failed." << endl;
throw std::invalid_argument(std::string(__FUNCTION__) +
": mraa_i2c_init() failed");
return;
}
@ -47,8 +49,8 @@ MMA7660::MMA7660(int bus, uint8_t address)
if ( (rv = mraa_i2c_address(m_i2c, m_addr)) != MRAA_SUCCESS)
{
cerr << "MMA7660: Could not initialize i2c bus. " << endl;
mraa_result_print(rv);
throw std::invalid_argument(std::string(__FUNCTION__) +
": mraa_i2c_address() failed");
return;
}
}
@ -128,7 +130,8 @@ int MMA7660::getVerifiedAxis(MMA7660_REG_T axis)
if (axis > 2)
{
cerr << __FUNCTION__ << ": axis must be 0, 1, or 2." << endl;
throw std::out_of_range(std::string(__FUNCTION__) +
": axis must be 0, 1, or 2.");
return 0;
}
@ -161,7 +164,6 @@ uint8_t MMA7660::getVerifiedTilt()
// check alert bit
} while (val & 0x40);
// shift the sign bit over, and compensate
return val;
}
@ -218,7 +220,8 @@ void MMA7660::installISR(int pin, void (*isr)(void *), void *arg)
if ( !(m_gpio = mraa_gpio_init(pin)) )
{
cerr << __FUNCTION__ << ": mraa_gpio_init() failed" << endl;
throw std::invalid_argument(std::string(__FUNCTION__) +
": mraa_gpio_init() failed, invalid pin?");
return;
}