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Optimize, reduce size of MarlinSerial

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This commit is contained in:
Scott Lahteine 2016-08-19 16:53:20 -05:00
parent 4d4c00d69c
commit 14395a1a96
2 changed files with 73 additions and 84 deletions
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91
Marlin/MarlinSerial.cpp
View file

@ -68,8 +68,8 @@ FORCE_INLINE void store_char(unsigned char c) {
} }
#if TX_BUFFER_SIZE > 0 #if TX_BUFFER_SIZE > 0
FORCE_INLINE void _tx_udr_empty_irq(void)
{ FORCE_INLINE void _tx_udr_empty_irq(void) {
// If interrupts are enabled, there must be more data in the output // If interrupts are enabled, there must be more data in the output
// buffer. Send the next byte // buffer. Send the next byte
uint8_t t = tx_buffer.tail; uint8_t t = tx_buffer.tail;
@ -95,7 +95,7 @@ FORCE_INLINE void store_char(unsigned char c) {
} }
#endif #endif
#endif #endif // TX_BUFFER_SIZE
#if defined(M_USARTx_RX_vect) #if defined(M_USARTx_RX_vect)
ISR(M_USARTx_RX_vect) { ISR(M_USARTx_RX_vect) {
@ -160,15 +160,8 @@ void MarlinSerial::checkRx(void) {
} }
int MarlinSerial::peek(void) { int MarlinSerial::peek(void) {
int v;
CRITICAL_SECTION_START; CRITICAL_SECTION_START;
uint8_t t = rx_buffer.tail; int v = rx_buffer.head == rx_buffer.tail ? -1 : rx_buffer.buffer[rx_buffer.tail];
if (rx_buffer.head == t) {
v = -1;
}
else {
v = rx_buffer.buffer[t];
}
CRITICAL_SECTION_END; CRITICAL_SECTION_END;
return v; return v;
} }
@ -176,22 +169,22 @@ int MarlinSerial::peek(void) {
int MarlinSerial::read(void) { int MarlinSerial::read(void) {
int v; int v;
CRITICAL_SECTION_START; CRITICAL_SECTION_START;
uint8_t t = rx_buffer.tail; uint8_t t = rx_buffer.tail;
if (rx_buffer.head == t) { if (rx_buffer.head == t) {
v = -1; v = -1;
} }
else { else {
v = rx_buffer.buffer[t]; v = rx_buffer.buffer[t];
rx_buffer.tail = (uint8_t)(t + 1) & (RX_BUFFER_SIZE - 1); rx_buffer.tail = (uint8_t)(t + 1) & (RX_BUFFER_SIZE - 1);
} }
CRITICAL_SECTION_END; CRITICAL_SECTION_END;
return v; return v;
} }
uint8_t MarlinSerial::available(void) { uint8_t MarlinSerial::available(void) {
CRITICAL_SECTION_START; CRITICAL_SECTION_START;
uint8_t h = rx_buffer.head; uint8_t h = rx_buffer.head,
uint8_t t = rx_buffer.tail; t = rx_buffer.tail;
CRITICAL_SECTION_END; CRITICAL_SECTION_END;
return (uint8_t)(RX_BUFFER_SIZE + h - t) & (RX_BUFFER_SIZE - 1); return (uint8_t)(RX_BUFFER_SIZE + h - t) & (RX_BUFFER_SIZE - 1);
} }
@ -251,11 +244,10 @@ void MarlinSerial::flush(void) {
} }
tx_buffer.buffer[tx_buffer.head] = c; tx_buffer.buffer[tx_buffer.head] = c;
{ CRITICAL_SECTION_START; CRITICAL_SECTION_START;
tx_buffer.head = i; tx_buffer.head = i;
SBI(M_UCSRxB, M_UDRIEx); SBI(M_UCSRxB, M_UDRIEx);
CRITICAL_SECTION_END; CRITICAL_SECTION_END;
}
return; return;
} }
@ -386,23 +378,18 @@ void MarlinSerial::println(double n, int digits) {
// Private Methods ///////////////////////////////////////////////////////////// // Private Methods /////////////////////////////////////////////////////////////
void MarlinSerial::printNumber(unsigned long n, uint8_t base) { void MarlinSerial::printNumber(unsigned long n, uint8_t base) {
unsigned char buf[8 * sizeof(long)]; // Assumes 8-bit chars. if (n) {
unsigned long i = 0; unsigned char buf[8 * sizeof(long)]; // Enough space for base 2
int8_t i = 0;
if (n == 0) { while (n) {
buf[i++] = n % base;
n /= base;
}
while (i--)
print((char)(buf[i] + (buf[i] < 10 ? '0' : 'A' - 10)));
}
else
print('0'); print('0');
return;
}
while (n > 0) {
buf[i++] = n % base;
n /= base;
}
for (; i > 0; i--)
print((char)(buf[i - 1] < 10 ?
'0' + buf[i - 1] :
'A' + buf[i - 1] - 10));
} }
void MarlinSerial::printFloat(double number, uint8_t digits) { void MarlinSerial::printFloat(double number, uint8_t digits) {
@ -415,7 +402,7 @@ void MarlinSerial::printFloat(double number, uint8_t digits) {
// Round correctly so that print(1.999, 2) prints as "2.00" // Round correctly so that print(1.999, 2) prints as "2.00"
double rounding = 0.5; double rounding = 0.5;
for (uint8_t i = 0; i < digits; ++i) for (uint8_t i = 0; i < digits; ++i)
rounding /= 10.0; rounding *= 0.1;
number += rounding; number += rounding;
@ -425,14 +412,15 @@ void MarlinSerial::printFloat(double number, uint8_t digits) {
print(int_part); print(int_part);
// Print the decimal point, but only if there are digits beyond // Print the decimal point, but only if there are digits beyond
if (digits > 0) print('.'); if (digits) {
print('.');
// Extract digits from the remainder one at a time // Extract digits from the remainder one at a time
while (digits-- > 0) { while (digits--) {
remainder *= 10.0; remainder *= 10.0;
int toPrint = int(remainder); int toPrint = int(remainder);
print(toPrint); print(toPrint);
remainder -= toPrint; remainder -= toPrint;
}
} }
} }
// Preinstantiate Objects ////////////////////////////////////////////////////// // Preinstantiate Objects //////////////////////////////////////////////////////
@ -534,4 +522,5 @@ MarlinSerial customizedSerial;
} }
} }
} }
#endif #endif

66
Marlin/MarlinSerial.h
View file

@ -127,47 +127,47 @@ class MarlinSerial { //: public Stream
public: public:
MarlinSerial(); MarlinSerial();
void begin(long); static void begin(long);
void end(); static void end();
int peek(void); static int peek(void);
int read(void); static int read(void);
void flush(void); static void flush(void);
uint8_t available(void); static uint8_t available(void);
void checkRx(void); static void checkRx(void);
void write(uint8_t c); static void write(uint8_t c);
#if TX_BUFFER_SIZE > 0 #if TX_BUFFER_SIZE > 0
uint8_t availableForWrite(void); static uint8_t availableForWrite(void);
void flushTX(void); static void flushTX(void);
#endif #endif
private: private:
void printNumber(unsigned long, uint8_t); static void printNumber(unsigned long, uint8_t);
void printFloat(double, uint8_t); static void printFloat(double, uint8_t);
public: public:
FORCE_INLINE void write(const char* str) { while (*str) write(*str++); } static FORCE_INLINE void write(const char* str) { while (*str) write(*str++); }
FORCE_INLINE void write(const uint8_t* buffer, size_t size) { while (size--) write(*buffer++); } static FORCE_INLINE void write(const uint8_t* buffer, size_t size) { while (size--) write(*buffer++); }
FORCE_INLINE void print(const String& s) { for (int i = 0; i < (int)s.length(); i++) write(s[i]); } static FORCE_INLINE void print(const String& s) { for (int i = 0; i < (int)s.length(); i++) write(s[i]); }
FORCE_INLINE void print(const char* str) { write(str); } static FORCE_INLINE void print(const char* str) { write(str); }
void print(char, int = BYTE); static void print(char, int = BYTE);
void print(unsigned char, int = BYTE); static void print(unsigned char, int = BYTE);
void print(int, int = DEC); static void print(int, int = DEC);
void print(unsigned int, int = DEC); static void print(unsigned int, int = DEC);
void print(long, int = DEC); static void print(long, int = DEC);
void print(unsigned long, int = DEC); static void print(unsigned long, int = DEC);
void print(double, int = 2); static void print(double, int = 2);
void println(const String& s); static void println(const String& s);
void println(const char[]); static void println(const char[]);
void println(char, int = BYTE); static void println(char, int = BYTE);
void println(unsigned char, int = BYTE); static void println(unsigned char, int = BYTE);
void println(int, int = DEC); static void println(int, int = DEC);
void println(unsigned int, int = DEC); static void println(unsigned int, int = DEC);
void println(long, int = DEC); static void println(long, int = DEC);
void println(unsigned long, int = DEC); static void println(unsigned long, int = DEC);
void println(double, int = 2); static void println(double, int = 2);
void println(void); static void println(void);
}; };
extern MarlinSerial customizedSerial; extern MarlinSerial customizedSerial;