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@ -28,9 +28,8 @@ |
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* Modified 28 September 2010 by Mark Sproul |
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* Modified 14 February 2016 by Andreas Hardtung (added tx buffer) |
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*/ |
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#include "MarlinSerial.h" |
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#include "stepper.h" |
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#include "MarlinSerial.h" |
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#include "Marlin.h" |
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// Disable HardwareSerial.cpp to support chips without a UART (Attiny, etc.)
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@ -38,15 +37,16 @@ |
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#if !defined(USBCON) && (defined(UBRRH) || defined(UBRR0H) || defined(UBRR1H) || defined(UBRR2H) || defined(UBRR3H)) |
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#if UART_PRESENT(SERIAL_PORT) |
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ring_buffer_r rx_buffer = { { 0 }, 0, 0 }; |
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ring_buffer_r rx_buffer = { { 0 }, 0, 0 }; |
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#if TX_BUFFER_SIZE > 0 |
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ring_buffer_t tx_buffer = { { 0 }, 0, 0 }; |
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ring_buffer_t tx_buffer = { { 0 }, 0, 0 }; |
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static bool _written; |
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#endif |
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#endif |
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#if ENABLED(EMERGENCY_PARSER) |
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#include "stepper.h" |
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#include "language.h" |
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// Currently looking for: M108, M112, M410
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@ -134,13 +134,12 @@ |
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} |
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} |
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#endif |
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#endif // EMERGENCY_PARSER
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FORCE_INLINE void store_char(unsigned char c) { |
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CRITICAL_SECTION_START; |
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uint8_t h = rx_buffer.head; |
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uint8_t i = (uint8_t)(h + 1) & (RX_BUFFER_SIZE - 1); |
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const uint8_t h = rx_buffer.head, |
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i = (uint8_t)(h + 1) & (RX_BUFFER_SIZE - 1); |
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// if we should be storing the received character into the location
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// just before the tail (meaning that the head would advance to the
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@ -162,8 +161,8 @@ |
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FORCE_INLINE void _tx_udr_empty_irq(void) { |
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// If interrupts are enabled, there must be more data in the output
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// buffer. Send the next byte
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uint8_t t = tx_buffer.tail; |
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uint8_t c = tx_buffer.buffer[t]; |
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const uint8_t t = tx_buffer.tail, |
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c = tx_buffer.buffer[t]; |
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tx_buffer.tail = (t + 1) & (TX_BUFFER_SIZE - 1); |
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M_UDRx = c; |
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@ -189,14 +188,14 @@ |
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#ifdef M_USARTx_RX_vect |
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ISR(M_USARTx_RX_vect) { |
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unsigned char c = M_UDRx; |
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const unsigned char c = M_UDRx; |
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store_char(c); |
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} |
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#endif |
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// Public Methods
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void MarlinSerial::begin(long baud) { |
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void MarlinSerial::begin(const long baud) { |
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uint16_t baud_setting; |
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bool useU2X = true; |
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@ -204,9 +203,7 @@ |
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// hard-coded exception for compatibility with the bootloader shipped
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// with the Duemilanove and previous boards and the firmware on the 8U2
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// on the Uno and Mega 2560.
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if (baud == 57600) { |
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useU2X = false; |
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} |
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if (baud == 57600) useU2X = false; |
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#endif |
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if (useU2X) { |
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@ -240,14 +237,14 @@ |
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void MarlinSerial::checkRx(void) { |
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if (TEST(M_UCSRxA, M_RXCx)) { |
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uint8_t c = M_UDRx; |
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const uint8_t c = M_UDRx; |
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store_char(c); |
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} |
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} |
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int MarlinSerial::peek(void) { |
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CRITICAL_SECTION_START; |
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int v = rx_buffer.head == rx_buffer.tail ? -1 : rx_buffer.buffer[rx_buffer.tail]; |
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const int v = rx_buffer.head == rx_buffer.tail ? -1 : rx_buffer.buffer[rx_buffer.tail]; |
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CRITICAL_SECTION_END; |
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return v; |
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} |
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@ -255,10 +252,9 @@ |
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int MarlinSerial::read(void) { |
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int v; |
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CRITICAL_SECTION_START; |
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uint8_t t = rx_buffer.tail; |
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if (rx_buffer.head == t) { |
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const uint8_t t = rx_buffer.tail; |
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if (rx_buffer.head == t) |
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v = -1; |
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} |
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else { |
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v = rx_buffer.buffer[t]; |
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rx_buffer.tail = (uint8_t)(t + 1) & (RX_BUFFER_SIZE - 1); |
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@ -269,8 +265,8 @@ |
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uint8_t MarlinSerial::available(void) { |
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CRITICAL_SECTION_START; |
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uint8_t h = rx_buffer.head, |
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t = rx_buffer.tail; |
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const uint8_t h = rx_buffer.head, |
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t = rx_buffer.tail; |
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CRITICAL_SECTION_END; |
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return (uint8_t)(RX_BUFFER_SIZE + h - t) & (RX_BUFFER_SIZE - 1); |
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} |
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@ -290,13 +286,13 @@ |
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#if TX_BUFFER_SIZE > 0 |
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uint8_t MarlinSerial::availableForWrite(void) { |
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CRITICAL_SECTION_START; |
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uint8_t h = tx_buffer.head; |
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uint8_t t = tx_buffer.tail; |
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const uint8_t h = tx_buffer.head, |
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t = tx_buffer.tail; |
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CRITICAL_SECTION_END; |
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return (uint8_t)(TX_BUFFER_SIZE + h - t) & (TX_BUFFER_SIZE - 1); |
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} |
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void MarlinSerial::write(uint8_t c) { |
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void MarlinSerial::write(const uint8_t c) { |
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_written = true; |
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CRITICAL_SECTION_START; |
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bool emty = (tx_buffer.head == tx_buffer.tail); |
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@ -312,7 +308,7 @@ |
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CRITICAL_SECTION_END; |
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return; |
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} |
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uint8_t i = (tx_buffer.head + 1) & (TX_BUFFER_SIZE - 1); |
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const uint8_t i = (tx_buffer.head + 1) & (TX_BUFFER_SIZE - 1); |
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// If the output buffer is full, there's nothing for it other than to
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// wait for the interrupt handler to empty it a bit
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@ -372,25 +368,24 @@ |
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void MarlinSerial::print(char c, int base) { |
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print((long) c, base); |
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print((long)c, base); |
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} |
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void MarlinSerial::print(unsigned char b, int base) { |
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print((unsigned long) b, base); |
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print((unsigned long)b, base); |
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} |
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void MarlinSerial::print(int n, int base) { |
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print((long) n, base); |
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print((long)n, base); |
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} |
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void MarlinSerial::print(unsigned int n, int base) { |
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print((unsigned long) n, base); |
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print((unsigned long)n, base); |
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} |
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void MarlinSerial::print(long n, int base) { |
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if (base == 0) { |
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if (base == 0) |
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write(n); |
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} |
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else if (base == 10) { |
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if (n < 0) { |
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print('-'); |
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@ -398,9 +393,8 @@ |
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} |
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printNumber(n, 10); |
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} |
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else { |
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else |
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printNumber(n, base); |
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} |
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} |
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void MarlinSerial::print(unsigned long n, int base) { |
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