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AP_HAL_FLYMAPLE: UARTDriver now has correct implementation of txspace that looks at HardwareSerial ring buffer

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Mike McCauley 2013-09-25 11:32:55 +10:00 committed by Andrew Tridgell
parent e4b5d0a3d6
commit 708c603420
1 changed files with 4 additions and 4 deletions
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8
libraries/AP_HAL_FLYMAPLE/UARTDriver.cpp
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@ -23,6 +23,7 @@
#include "UARTDriver.h"
#include "FlymapleWirish.h"
#include <HardwareSerial.h>
#include <usart.h>
using namespace AP_HAL_FLYMAPLE_NS;
@ -67,10 +68,9 @@ int16_t FLYMAPLEUARTDriver::available()
int16_t FLYMAPLEUARTDriver::txspace()
{
// txspace must return something sensible, else MAVlink wont s4nd out heartbeats
// but we cannot get the actual number from libmaple.
// Actually libmaple usart is synchronous, so the number returned is irrelevant
return 1000;
// Get available space from guts of HardwareSerial
// CAUTION: dependent on implmentation of HardwareSerial
return _hws->c_dev()->rb->size - rb_full_count(_hws->c_dev()->rb);
}
int16_t FLYMAPLEUARTDriver::read()