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nrf8001: throw exception(s) on fatal errors

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This isn't really a C++ library, though it is compiled as one.  We
throw exceptions in the hal_init function on startup if there are
issues initializing SPI or the various GPIO's, but that's it.

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 16:54:16 -06:00 committed by Mihai Tudor Panu
parent 36cbca05bb
commit d0b5a98952
1 changed files with 10 additions and 5 deletions

15
src/nrf8001/hal_aci_tl.cpp

@ -23,6 +23,8 @@
@brief Implementation of the ACI transport layer module @brief Implementation of the ACI transport layer module
*/ */
#include <string>
#include <stdexcept>
#include <stdio.h> #include <stdio.h>
#include "hal_platform.h" #include "hal_platform.h"
@ -337,12 +339,12 @@ void hal_aci_tl_init(aci_pins_t *a_pins, bool debug)
*/ */
a_pins->m_spi = mraa_spi_init (0); a_pins->m_spi = mraa_spi_init (0);
if (a_pins->m_spi == NULL) { if (a_pins->m_spi == NULL) {
printf ("[ERROR] SPI failed to initilize\n"); throw std::invalid_argument(std::string(__FUNCTION__) +
": mraa_spi_init() failed");
} }
mraa_spi_frequency (a_pins->m_spi, 2000000); mraa_spi_frequency (a_pins->m_spi, 2000000);
mraa_spi_mode (a_pins->m_spi, MRAA_SPI_MODE0); mraa_spi_mode (a_pins->m_spi, MRAA_SPI_MODE0);
mraa_spi_lsbmode (a_pins->m_spi, 1);
/* Initialize the ACI Command queue. This must be called after the delay above. */ /* Initialize the ACI Command queue. This must be called after the delay above. */
aci_queue_init(&aci_tx_q); aci_queue_init(&aci_tx_q);
@ -351,17 +353,20 @@ void hal_aci_tl_init(aci_pins_t *a_pins, bool debug)
// Configure the IO lines // Configure the IO lines
a_pins->m_rdy_ctx = mraa_gpio_init (a_pins->rdyn_pin); a_pins->m_rdy_ctx = mraa_gpio_init (a_pins->rdyn_pin);
if (a_pins->m_rdy_ctx == NULL) { if (a_pins->m_rdy_ctx == NULL) {
printf ("[ERROR] GPIO failed to initilize \n"); throw std::invalid_argument(std::string(__FUNCTION__) +
": mraa_gpio_init(rdyn) failed, invalid pin?");
} }
a_pins->m_req_ctx = mraa_gpio_init (a_pins->reqn_pin); a_pins->m_req_ctx = mraa_gpio_init (a_pins->reqn_pin);
if (a_pins->m_req_ctx == NULL) { if (a_pins->m_req_ctx == NULL) {
printf ("[ERROR] GPIO failed to initilize \n"); throw std::invalid_argument(std::string(__FUNCTION__) +
": mraa_gpio_init(reqn) failed, invalid pin?");
} }
a_pins->m_rst_ctx = mraa_gpio_init (a_pins->reset_pin); a_pins->m_rst_ctx = mraa_gpio_init (a_pins->reset_pin);
if (a_pins->m_rst_ctx == NULL) { if (a_pins->m_rst_ctx == NULL) {
printf ("[ERROR] GPIO failed to initilize \n"); throw std::invalid_argument(std::string(__FUNCTION__) +
": mraa_gpio_init(reset) failed, invalid pin?");
} }
error = mraa_gpio_dir (a_pins->m_rdy_ctx, MRAA_GPIO_IN); error = mraa_gpio_dir (a_pins->m_rdy_ctx, MRAA_GPIO_IN);