diff options
Diffstat (limited to 'cores/arduino/HardwareSerial.cpp')
| -rw-r--r--[-rwxr-xr-x] | cores/arduino/HardwareSerial.cpp | 177 |
1 files changed, 125 insertions, 52 deletions
diff --git a/cores/arduino/HardwareSerial.cpp b/cores/arduino/HardwareSerial.cpp index e7ac21f..9257302 100755..100644 --- a/cores/arduino/HardwareSerial.cpp +++ b/cores/arduino/HardwareSerial.cpp @@ -17,6 +17,7 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA Modified 23 November 2006 by David A. Mellis + Modified 28 September 2010 by Mark Sproul */ #include <stdlib.h> @@ -26,26 +27,40 @@ #include "wiring.h" #include "wiring_private.h" +// this next line disables the entire HardwareSerial.cpp, +// this is so I can support Attiny series and any other chip without a uart +#if defined(UBRRH) || defined(UBRR0H) || defined(UBRR1H) || defined(UBRR2H) || defined(UBRR3H) + #include "HardwareSerial.h" // Define constants and variables for buffering incoming serial data. We're // using a ring buffer (I think), in which rx_buffer_head is the index of the // location to which to write the next incoming character and rx_buffer_tail // is the index of the location from which to read. -#define RX_BUFFER_SIZE 128 +#if (RAMEND < 1000) + #define RX_BUFFER_SIZE 32 +#else + #define RX_BUFFER_SIZE 128 +#endif -struct ring_buffer { +struct ring_buffer +{ unsigned char buffer[RX_BUFFER_SIZE]; int head; int tail; }; -ring_buffer rx_buffer = { { 0 }, 0, 0 }; - -#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__) -ring_buffer rx_buffer1 = { { 0 }, 0, 0 }; -ring_buffer rx_buffer2 = { { 0 }, 0, 0 }; -ring_buffer rx_buffer3 = { { 0 }, 0, 0 }; +#if defined(UBRRH) || defined(UBRR0H) + ring_buffer rx_buffer = { { 0 }, 0, 0 }; +#endif +#if defined(UBRR1H) + ring_buffer rx_buffer1 = { { 0 }, 0, 0 }; +#endif +#if defined(UBRR2H) + ring_buffer rx_buffer2 = { { 0 }, 0, 0 }; +#endif +#if defined(UBRR3H) + ring_buffer rx_buffer3 = { { 0 }, 0, 0 }; #endif inline void store_char(unsigned char c, ring_buffer *rx_buffer) @@ -62,50 +77,97 @@ inline void store_char(unsigned char c, ring_buffer *rx_buffer) } } -#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__) - -SIGNAL(SIG_USART0_RECV) -{ - unsigned char c = UDR0; - store_char(c, &rx_buffer); -} - -SIGNAL(SIG_USART1_RECV) -{ - unsigned char c = UDR1; - store_char(c, &rx_buffer1); -} - -SIGNAL(SIG_USART2_RECV) -{ - unsigned char c = UDR2; - store_char(c, &rx_buffer2); -} - -SIGNAL(SIG_USART3_RECV) -{ - unsigned char c = UDR3; - store_char(c, &rx_buffer3); -} - +#if defined(USART_RX_vect) + SIGNAL(USART_RX_vect) + { + #if defined(UDR0) + unsigned char c = UDR0; + #elif defined(UDR) + unsigned char c = UDR; // atmega8535 + #else + #error UDR not defined + #endif + store_char(c, &rx_buffer); + } +#elif defined(SIG_USART0_RECV) && defined(UDR0) + SIGNAL(SIG_USART0_RECV) + { + unsigned char c = UDR0; + store_char(c, &rx_buffer); + } +#elif defined(SIG_UART0_RECV) && defined(UDR0) + SIGNAL(SIG_UART0_RECV) + { + unsigned char c = UDR0; + store_char(c, &rx_buffer); + } +//#elif defined(SIG_USART_RECV) +#elif defined(USART0_RX_vect) + // fixed by Mark Sproul this is on the 644/644p + //SIGNAL(SIG_USART_RECV) + SIGNAL(USART0_RX_vect) + { + #if defined(UDR0) + unsigned char c = UDR0; + #elif defined(UDR) + unsigned char c = UDR; // atmega8, atmega32 + #else + #error UDR not defined + #endif + store_char(c, &rx_buffer); + } +#elif defined(SIG_UART_RECV) + // this is for atmega8 + SIGNAL(SIG_UART_RECV) + { + #if defined(UDR0) + unsigned char c = UDR0; // atmega645 + #elif defined(UDR) + unsigned char c = UDR; // atmega8 + #endif + store_char(c, &rx_buffer); + } +#elif defined(USBCON) + #warning No interrupt handler for usart 0 + #warning Serial(0) is on USB interface #else + #error No interrupt handler for usart 0 +#endif -#if defined(__AVR_ATmega8__) -SIGNAL(SIG_UART_RECV) -#else -SIGNAL(USART_RX_vect) +//#if defined(SIG_USART1_RECV) +#if defined(USART1_RX_vect) + //SIGNAL(SIG_USART1_RECV) + SIGNAL(USART1_RX_vect) + { + unsigned char c = UDR1; + store_char(c, &rx_buffer1); + } +#elif defined(SIG_USART1_RECV) + #error SIG_USART1_RECV #endif -{ -#if defined(__AVR_ATmega8__) - unsigned char c = UDR; -#else - unsigned char c = UDR0; + +#if defined(USART2_RX_vect) && defined(UDR2) + SIGNAL(USART2_RX_vect) + { + unsigned char c = UDR2; + store_char(c, &rx_buffer2); + } +#elif defined(SIG_USART2_RECV) + #error SIG_USART2_RECV #endif - store_char(c, &rx_buffer); -} +#if defined(USART3_RX_vect) && defined(UDR3) + SIGNAL(USART3_RX_vect) + { + unsigned char c = UDR3; + store_char(c, &rx_buffer3); + } +#elif defined(SIG_USART3_RECV) + #error SIG_USART3_RECV #endif + + // Constructors //////////////////////////////////////////////////////////////// HardwareSerial::HardwareSerial(ring_buffer *rx_buffer, @@ -223,14 +285,25 @@ void HardwareSerial::write(uint8_t c) // Preinstantiate Objects ////////////////////////////////////////////////////// -#if defined(__AVR_ATmega8__) -HardwareSerial Serial(&rx_buffer, &UBRRH, &UBRRL, &UCSRA, &UCSRB, &UDR, RXEN, TXEN, RXCIE, UDRE, U2X); +#if defined(UBRRH) && defined(UBRRL) + HardwareSerial Serial(&rx_buffer, &UBRRH, &UBRRL, &UCSRA, &UCSRB, &UDR, RXEN, TXEN, RXCIE, UDRE, U2X); +#elif defined(UBRR0H) && defined(UBRR0L) + HardwareSerial Serial(&rx_buffer, &UBRR0H, &UBRR0L, &UCSR0A, &UCSR0B, &UDR0, RXEN0, TXEN0, RXCIE0, UDRE0, U2X0); +#elif defined(USBCON) + #warning no serial port defined (port 0) #else -HardwareSerial Serial(&rx_buffer, &UBRR0H, &UBRR0L, &UCSR0A, &UCSR0B, &UDR0, RXEN0, TXEN0, RXCIE0, UDRE0, U2X0); + #error no serial port defined (port 0) #endif -#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__) -HardwareSerial Serial1(&rx_buffer1, &UBRR1H, &UBRR1L, &UCSR1A, &UCSR1B, &UDR1, RXEN1, TXEN1, RXCIE1, UDRE1, U2X1); -HardwareSerial Serial2(&rx_buffer2, &UBRR2H, &UBRR2L, &UCSR2A, &UCSR2B, &UDR2, RXEN2, TXEN2, RXCIE2, UDRE2, U2X2); -HardwareSerial Serial3(&rx_buffer3, &UBRR3H, &UBRR3L, &UCSR3A, &UCSR3B, &UDR3, RXEN3, TXEN3, RXCIE3, UDRE3, U2X3); +#if defined(UBRR1H) + HardwareSerial Serial1(&rx_buffer1, &UBRR1H, &UBRR1L, &UCSR1A, &UCSR1B, &UDR1, RXEN1, TXEN1, RXCIE1, UDRE1, U2X1); +#endif +#if defined(UBRR2H) + HardwareSerial Serial2(&rx_buffer2, &UBRR2H, &UBRR2L, &UCSR2A, &UCSR2B, &UDR2, RXEN2, TXEN2, RXCIE2, UDRE2, U2X2); +#endif +#if defined(UBRR3H) + HardwareSerial Serial3(&rx_buffer3, &UBRR3H, &UBRR3L, &UCSR3A, &UCSR3B, &UDR3, RXEN3, TXEN3, RXCIE3, UDRE3, U2X3); #endif + +#endif // whole file + |