u8 findNodesInBootloaderMode (IEEEAddr *eui64, u8 maxEUI64)
{
u8 status;
u8 reply[3];
u8 count = 0;
txBufferInit(TRUE);
rxBufferInit();
status = bootloadCommand(GET_VERSION, NULL, sizeof(reply), reply);
if (status == BOOTLOAD_COMMAND_SUCCESS) {
if (count < maxEUI64) {
halCommonMemCopy(eui64[count++], &rxBuffer.srcEui64, sizeof(IEEEAddr));
}
while (count < maxEUI64) {
u32 startTime;
u8 found = FALSE;
startTime = TIME_CurrentTime();
while (TIME_ELAPSED(startTime) < 1000000) {
if (rxBuffer.packetReceived) {
halCommonMemCopy(eui64[count++], &rxBuffer.srcEui64, sizeof(IEEEAddr));
rxBuffer.packetReceived = FALSE;
found = TRUE;
break;
}
}
if (! found)
break;
}
}
return count;
}
// timeout -1 forever, or milliseconds
int poll(pollfh fhs[], unsigned nfhs, int timeout)
{
/**
* TODO Proper wake-up mechanism.
* In order to correctly detect availability of read/write a FileHandle, we needed
* a select or poll mechanisms. We opted for poll as POSIX defines in
* http://pubs.opengroup.org/onlinepubs/009695399/functions/poll.html Currently,
* mbed::poll() just spins and scans filehandles looking for any events we are
* interested in. In future, his spinning behaviour will be replaced with
* condition variables.
*/
#if MBED_CONF_RTOS_PRESENT
uint64_t start_time = 0;
if (timeout > 0) {
start_time = Kernel::get_ms_count();
}
#define TIME_ELAPSED() int64_t(Kernel::get_ms_count() - start_time)
#else
#if MBED_CONF_PLATFORM_POLL_USE_LOWPOWER_TIMER
LowPowerTimer timer;
#else
Timer timer;
#endif
if (timeout > 0) {
timer.start();
}
#define TIME_ELAPSED() timer.read_ms()
#endif // MBED_CONF_RTOS_PRESENT
int count = 0;
for (;;) {
/* Scan the file handles */
for (unsigned n = 0; n < nfhs; n++) {
FileHandle *fh = fhs[n].fh;
short mask = fhs[n].events | POLLERR | POLLHUP | POLLNVAL;
if (fh) {
fhs[n].revents = fh->poll(mask) & mask;
} else {
fhs[n].revents = POLLNVAL;
}
if (fhs[n].revents) {
count++;
}
}
if (count) {
break;
}
/* Nothing selected - this is where timeout handling would be needed */
if (timeout == 0 || (timeout > 0 && TIME_ELAPSED() > timeout)) {
break;
}
#ifdef MBED_CONF_RTOS_PRESENT
// TODO - proper blocking
// wait for condition variable, wait queue whatever here
rtos::Thread::wait(1);
#endif
}
return count;
}
