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allow the Low Power library to not break the Serial connection

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This commit is contained in:
Jonni Westphalen 2018-10-14 00:18:49 +02:00 committed by Martino Facchin
parent 3645829901
commit 52e005278a
3 changed files with 17 additions and 0 deletions
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4
cores/arduino/USB/CDC.cpp
View file

@ -204,6 +204,10 @@ void Serial_::flush(void)
usb.flush(CDC_ENDPOINT_IN);
}
void Serial_::clear(void) {
usb.clear(CDC_ENDPOINT_IN);
}
size_t Serial_::write(const uint8_t *buffer, size_t size)
{
uint32_t r = usb.send(CDC_ENDPOINT_IN, buffer, size);

2
cores/arduino/USB/USBAPI.h
View file

@ -94,6 +94,7 @@ public:
int recv(uint32_t ep);
uint32_t available(uint32_t ep);
void flush(uint32_t ep);
void clear(uint32_t ep);
void stall(uint32_t ep);
// private?
@ -125,6 +126,7 @@ public:
virtual int peek(void);
virtual int read(void);
virtual void flush(void);
virtual void clear(void);
virtual size_t write(uint8_t);
virtual size_t write(const uint8_t *buffer, size_t size);
using Print::write; // pull in write(str) from Print

11
cores/arduino/USB/USBCore.cpp
View file

@ -508,6 +508,17 @@ void USBDeviceClass::flush(uint32_t ep)
}
}
void USBDeviceClass::clear(uint32_t ep) {
usbd.epBank1SetAddress(ep, &udd_ep_in_cache_buffer[ep]);
usbd.epBank1SetByteCount(ep, 0);
// Clear the transfer complete flag
usbd.epBank1AckTransferComplete(ep);
// RAM buffer is full, we can send data (IN)
usbd.epBank1SetReady(ep);
}
void USBDeviceClass::stall(uint32_t ep)
{
// TODO: test