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nrf24l01: 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 2015-09-10 16:42:32 -06:00 committed by Mihai Tudor Panu
parent f6ab1fb451
commit 36cbca05bb
1 changed files with 17 additions and 1 deletions
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18
src/nrf24l01/nrf24l01.cxx
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@ -25,17 +25,19 @@
#include <iostream>
#include <unistd.h>
#include <string>
#include <stdexcept>
#include <stdlib.h>
#include "nrf24l01.h"
using namespace upm;
NRF24L01::NRF24L01 (uint8_t cs, uint8_t ce)
: m_csnPinCtx(cs), m_cePinCtx(ce), m_spi(0)
{
mraa::init();
init (cs, ce);
}
void
@ -46,6 +48,20 @@ NRF24L01::init (uint8_t chip_select, uint8_t chip_enable) {
m_ce = chip_enable;
m_channel = 99;
m_csnPinCtx = mraa_gpio_init (m_csn);
if (m_csnPinCtx == NULL) {
throw std::invalid_argument(std::string(__FUNCTION__) +
": mraa_gpio_init(csn) failed, invalid pin?");
return;
}
m_cePinCtx = mraa_gpio_init (m_ce);
if (m_cePinCtx == NULL) {
throw std::invalid_argument(std::string(__FUNCTION__) +
": mraa_gpio_init(ce) failed, invalid pin?");
return;
}
error = m_csnPinCtx.dir(mraa::DIR_OUT);
if (error != mraa::SUCCESS) {
mraa::printError (error);