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microbit: Introduced microbitDevice.[h,cpp] to hold platform specific low 

level functionality
master
Joe Finney 2016-03-10 11:57:55 +00:00
parent 000351b599
commit 8a06a4e3be
2 changed files with 77 additions and 0 deletions
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24
inc/MicroBitDevice.h Normal file
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/**
* Device specific funcitons for the nrf51822 device.
*
* Provides a degree of platform independence for microbit-dal functionality.
* TODO: Determine is any o this belongs in an mbed target definition.
* TODO: Review microbit-dal to place all such functions here.
*
*/
#ifndef MICROBIT_DEVICE_H
#define MICROBIT_DEVICE_H
/*
* The underlying Nordic libraries that support BLE do not compile cleanly with the stringent GCC settings we employ
* If we're compiling under GCC, then we suppress any warnings generated from this code (but not the rest of the DAL)
* The ARM cc compiler is more tolerant. We don't test __GNUC__ here to detect GCC as ARMCC also typically sets this
* as a compatability option, but does not support the options used...
*/
/**
* Determines if a BLE stack is currnetly running.
* @return true is a bluetooth stack is operational, false otherwise.
*/
bool ble_running();
#endif

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source/MicroBitDevice.cpp Normal file
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/**
* Compatibility / portability funcitons and constants for the MicroBit DAL.
*/
#include "mbed.h"
#include "ErrorNo.h"
/**
* Turn off warnings under gcc -Wall. We turn off unused-function for the
* entire compilation unit as the compiler can't tell if a function is
* unused until the end of the unit. The macro expansion for SVCALL()
* in nrf_soc.h and nrf_srv.h tries to leave unused-function turned off,
* but we restore the state from before the include with our diagnostics
* pop.
* It might be cleaner to add
* #pragram GCC system header
* as the first line of nrf_soc.h, but that's a different
* module ...
*/
/*
* The underlying Nordic libraries that support BLE do not compile cleanly with the stringent GCC settings we employ
* If we're compiling under GCC, then we suppress any warnings generated from this code (but not the rest of the DAL)
* The ARM cc compiler is more tolerant. We don't test __GNUC__ here to detect GCC as ARMCC also typically sets this
* as a compatability option, but does not support the options used...
*/
#if !defined(__arm)
#pragma GCC diagnostic ignored "-Wunused-function"
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wunused-parameter"
#endif
#include "nrf_soc.h"
#include "nrf_sdm.h"
/*
* Return to our predefined compiler settings.
*/
#if !defined(__arm)
#pragma GCC diagnostic pop
#endif
/**
* Determines if a BLE stack is currnetly running.
* @return true is a bluetooth stack is operational, false otherwise.
*/
bool ble_running()
{
uint8_t t;
sd_softdevice_is_enabled(&t);
return t==1;
}