55 lines
1.5 KiB
C++
55 lines
1.5 KiB
C++
|
#include "Arduino.h"
|
||
|
|
#include "HardwareSerial.h"
|
||
|
|
|
||
|
|
// Each HardwareSerial is defined in its own file, sine the linker pulls
|
||
|
|
// in the entire file when any element inside is used. --gc-sections can
|
||
|
|
// additionally cause unused symbols to be dropped, but ISRs have the
|
||
|
|
// "used" attribute so are never dropped and they keep the
|
||
|
|
// HardwareSerial instance in as well. Putting each instance in its own
|
||
|
|
// file prevents the linker from pulling in any unused instances in the
|
||
|
|
// first place.
|
||
|
|
|
||
|
|
#if defined(HAVE_HWSERIAL0)
|
||
|
|
|
||
|
|
#if defined(USART_RX_vect)
|
||
|
|
ISR(USART_RX_vect)
|
||
|
|
#elif defined(USART0_RX_vect)
|
||
|
|
ISR(USART0_RX_vect)
|
||
|
|
#elif defined(USART_RXC_vect)
|
||
|
|
ISR(USART_RXC_vect) // ATmega8
|
||
|
|
#else
|
||
|
|
#error "Don't know what the Data Received vector is called for the first UART"
|
||
|
|
#endif
|
||
|
|
{
|
||
|
|
Serial._rx_complete_irq();
|
||
|
|
}
|
||
|
|
|
||
|
|
#if defined(UART0_UDRE_vect)
|
||
|
|
ISR(UART0_UDRE_vect)
|
||
|
|
#elif defined(UART_UDRE_vect)
|
||
|
|
ISR(UART_UDRE_vect)
|
||
|
|
#elif defined(USART0_UDRE_vect)
|
||
|
|
ISR(USART0_UDRE_vect)
|
||
|
|
#elif defined(USART_UDRE_vect)
|
||
|
|
ISR(USART_UDRE_vect)
|
||
|
|
#else
|
||
|
|
#error "Don't know what the Data Register Empty vector is called for the first UART"
|
||
|
|
#endif
|
||
|
|
{
|
||
|
|
Serial._tx_udr_empty_irq();
|
||
|
|
}
|
||
|
|
|
||
|
|
#if defined(UBRRH) && defined(UBRRL)
|
||
|
|
HardwareSerial Serial(&UBRRH, &UBRRL, &UCSRA, &UCSRB, &UCSRC, &UDR);
|
||
|
|
#else
|
||
|
|
HardwareSerial Serial(&UBRR0H, &UBRR0L, &UCSR0A, &UCSR0B, &UCSR0C, &UDR0);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
// Function that can be weakly referenced by serialEventRun to prevent
|
||
|
|
// pulling in this file if it's not otherwise used.
|
||
|
|
bool Serial0_available() {
|
||
|
|
return Serial.available();
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif // HAVE_HWSERIAL0
|