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lpd8806: remove custom exception and use a standard one

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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 2015-08-07 16:01:24 -06:00 committed by Mihai Tudor Panu
parent 97e7f74a8f
commit 3ad25f65c8
1 changed files with 7 additions and 10 deletions
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17
src/lpd8806/lpd8806.cxx
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@ -26,18 +26,12 @@
#include <unistd.h>
#include <stdlib.h>
#include <cstring>
#include <stdexcept>
#include "lpd8806.h"
using namespace upm;
struct LPD8806Exception : public std::exception {
std::string message;
LPD8806Exception (std::string msg) : message (msg) { }
~LPD8806Exception () throw () { }
const char* what() const throw () { return message.c_str(); }
};
LPD8806::LPD8806 (uint16_t pixelCount, uint8_t csn) {
mraa_result_t error = MRAA_SUCCESS;
m_name = "LPD8806";
@ -46,19 +40,22 @@ LPD8806::LPD8806 (uint16_t pixelCount, uint8_t csn) {
m_csnPinCtx = mraa_gpio_init (csn);
if (m_csnPinCtx == NULL) {
throw LPD8806Exception ("GPIO failed to initilize");
throw std::invalid_argument(std::string(__FUNCTION__) +
": GPIO failed to initialize");
}
error = mraa_gpio_dir (m_csnPinCtx, MRAA_GPIO_OUT);
if (error != MRAA_SUCCESS) {
throw LPD8806Exception ("GPIO failed to initilize");
throw std::invalid_argument(std::string(__FUNCTION__) +
": GPIO failed to set direction");
}
CSOff ();
m_spi = mraa_spi_init (0);
if (m_spi == NULL) {
throw LPD8806Exception ("SPI failed to initilize");
throw std::invalid_argument(std::string(__FUNCTION__) +
": SPI failed to initialize");
}
// set spi mode to mode2 (CPOL = 0, CPHA = 0)