// todo - would prefer this was provided as a callback.
extern "C" int _gettimeofday( struct timeval *tv, void *tzvp )
{
uint32_t t = HAL_Timer_Milliseconds(); // get uptime in nanoseconds
tv->tv_sec = t / 1000; // convert to seconds
tv->tv_usec = ( t % 1000 )*1000; // get remaining microseconds
return 0; // return non-zero for error
} // end _gettimeofday()
int Spark_Prepare_For_Firmware_Update(FileTransfer::Descriptor& file, uint32_t flags, void* reserved)
{
if (file.store==FileTransfer::Store::FIRMWARE)
{
// address is relative to the OTA region. Normally will be 0.
file.file_address = HAL_OTA_FlashAddress() + file.chunk_address;
// chunk_size 0 indicates defaults.
if (file.chunk_size==0) {
file.chunk_size = HAL_OTA_ChunkSize();
file.file_length = HAL_OTA_FlashLength();
}
}
int result = 0;
if (flags & 1) {
// only check address
}
else {
uint32_t start = HAL_Timer_Milliseconds();
system_set_flag(SYSTEM_FLAG_OTA_UPDATE_PENDING, 1, nullptr);
volatile bool flag = false;
system_notify_event(firmware_update_pending, 0, nullptr, set_flag, (void*)&flag);
System.waitCondition([&flag]{return flag;}, timeRemaining(start, 30000));
system_set_flag(SYSTEM_FLAG_OTA_UPDATE_PENDING, 0, nullptr);
if (System.updatesEnabled()) // application event is handled asynchronously
{
RGB.control(true);
RGB.color(RGB_COLOR_MAGENTA);
SPARK_FLASH_UPDATE = 1;
TimingFlashUpdateTimeout = 0;
system_notify_event(firmware_update, firmware_update_begin, &file);
HAL_FLASH_Begin(file.file_address, file.file_length, NULL);
}
else
{
result = 1; // updates disabled
}
}
return result;
}
uint32_t timeRemaining(uint32_t start, uint32_t duration)
{
uint32_t elapsed = HAL_Timer_Milliseconds()-start;
return (elapsed>=duration) ? 0 : duration-elapsed;
}
