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Add Serial_::availableForWrite(). 

This makes the CDC "Serial" object on the Leonardo and similar boards
support this recently introduced method as well. The CDC code in the sam
core is not changed.
This commit is contained in:
Peter Van Hoyweghen 2015-07-04 08:28:52 +02:00 committed by Matthijs Kooijman
parent 303ebdb0cc
commit 3baff3b411
2 changed files with 7 additions and 0 deletions
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5
cores/arduino/CDC.cpp
View File

@ -163,6 +163,11 @@ int Serial_::read(void)
return USB_Recv(CDC_RX);
}
int Serial_::availableForWrite(void)
{
return USB_SendSpace(CDC_TX);
}
void Serial_::flush(void)
{
USB_Flush(CDC_TX);

2
cores/arduino/USBAPI.h
View File

@ -92,6 +92,7 @@ public:
virtual int available(void);
virtual int peek(void);
virtual int read(void);
int availableForWrite(void);
virtual void flush(void);
virtual size_t write(uint8_t);
virtual size_t write(const uint8_t*, size_t);
@ -188,6 +189,7 @@ int USB_SendControl(uint8_t flags, const void* d, int len);
int USB_RecvControl(void* d, int len);
uint8_t USB_Available(uint8_t ep);
uint8_t USB_SendSpace(uint8_t ep);
int USB_Send(uint8_t ep, const void* data, int len); // blocking
int USB_Recv(uint8_t ep, void* data, int len); // non-blocking
int USB_Recv(uint8_t ep); // non-blocking