Merged latest changes in AVR arduino core

hardware/arduino/avr/cores/arduino/CDC.cpp

@@ -141,16 +141,22 @@ void Serial_::end(void)
 void Serial_::accept(void) 
 {
 	ring_buffer *buffer = &cdc_rx_buffer;
-	int c = USB_Recv(CDC_RX); 
 	int i = (unsigned int)(buffer->head+1) % SERIAL_BUFFER_SIZE;
 	
 	// if we should be storing the received character into the location
 	// just before the tail (meaning that the head would advance to the
 	// current location of the tail), we're about to overflow the buffer
 	// and so we don't write the character or advance the head.
-	if (i != buffer->tail) {
+
+	// while we have room to store a byte
+	while (i != buffer->tail) {
+		int c = USB_Recv(CDC_RX);
+		if (c == -1)
+			break;	// no more data
 		buffer->buffer[buffer->head] = c;
 		buffer->head = i;
+
+		i = (unsigned int)(buffer->head+1) % SERIAL_BUFFER_SIZE;
 	}
 }
 

hardware/arduino/avr/cores/arduino/Print.cpp

@@ -228,6 +228,8 @@ size_t Print::printFloat(double number, uint8_t digits)
   
   if (isnan(number)) return print("nan");
   if (isinf(number)) return print("inf");
+  if (number > 4294967040.0) return print ("ovf");  // constant determined empirically
+  if (number <-4294967040.0) return print ("ovf");  // constant determined empirically
   
   // Handle negative numbers
   if (number < 0.0)

hardware/arduino/avr/cores/arduino/Tone.cpp

@@ -29,6 +29,7 @@ Version Modified By Date     Comments
                     09/11/25 Fixed timer0 from being excluded
 0006    D Mellis    09/12/29 Replaced objects with functions
 0007    M Sproul    10/08/29 Changed #ifdefs from cpu to register
+0008    S Kanemoto  12/06/22 Fixed for Leonardo by @maris_HY
 *************************************************/
 
 #include <avr/interrupt.h>
@@ -85,10 +86,10 @@ volatile uint8_t timer5_pin_mask;
 #endif
 
 
-// MLS: This does not make sense, the 3 options are the same
 #if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
 
 #define AVAILABLE_TONE_PINS 1
+#define USE_TIMER2
 
 const uint8_t PROGMEM tone_pin_to_timer_PGM[] = { 2 /*, 3, 4, 5, 1, 0 */ };
 static uint8_t tone_pins[AVAILABLE_TONE_PINS] = { 255 /*, 255, 255, 255, 255, 255 */ };
@@ -96,13 +97,23 @@ static uint8_t tone_pins[AVAILABLE_TONE_PINS] = { 255 /*, 255, 255, 255, 255, 25
 #elif defined(__AVR_ATmega8__)
 
 #define AVAILABLE_TONE_PINS 1
+#define USE_TIMER2
 
 const uint8_t PROGMEM tone_pin_to_timer_PGM[] = { 2 /*, 1 */ };
 static uint8_t tone_pins[AVAILABLE_TONE_PINS] = { 255 /*, 255 */ };
 
+#elif defined(__AVR_ATmega32U4__)
+ 
+#define AVAILABLE_TONE_PINS 1
+#define USE_TIMER3
+ 
+const uint8_t PROGMEM tone_pin_to_timer_PGM[] = { 3 /*, 1 */ };
+static uint8_t tone_pins[AVAILABLE_TONE_PINS] = { 255 /*, 255 */ };
+ 
 #else
 
 #define AVAILABLE_TONE_PINS 1
+#define USE_TIMER2
 
 // Leave timer 0 to last.
 const uint8_t PROGMEM tone_pin_to_timer_PGM[] = { 2 /*, 1, 0 */ };
@@ -480,8 +491,7 @@ void noTone(uint8_t _pin)
   digitalWrite(_pin, 0);
 }
 
-#if 0
+#ifdef USE_TIMER0
-#if !defined(__AVR_ATmega8__)
 ISR(TIMER0_COMPA_vect)
 {
   if (timer0_toggle_count != 0)
@@ -501,6 +511,7 @@ ISR(TIMER0_COMPA_vect)
 #endif
 
 
+#ifdef USE_TIMER1
 ISR(TIMER1_COMPA_vect)
 {
   if (timer1_toggle_count != 0)
@@ -520,6 +531,7 @@ ISR(TIMER1_COMPA_vect)
 #endif
 
 
+#ifdef USE_TIMER2
 ISR(TIMER2_COMPA_vect)
 {
 
@@ -541,12 +553,10 @@ ISR(TIMER2_COMPA_vect)
 //    *timer2_pin_port &= ~(timer2_pin_mask);  // keep pin low after stop
   }
 }
+#endif
 
 
-
+#ifdef USE_TIMER3
-//#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
-#if 0
-
 ISR(TIMER3_COMPA_vect)
 {
   if (timer3_toggle_count != 0)
@@ -563,7 +573,10 @@ ISR(TIMER3_COMPA_vect)
     *timer3_pin_port &= ~(timer3_pin_mask);  // keep pin low after stop
   }
 }
+#endif
 
+
+#ifdef USE_TIMER4
 ISR(TIMER4_COMPA_vect)
 {
   if (timer4_toggle_count != 0)
@@ -580,7 +593,10 @@ ISR(TIMER4_COMPA_vect)
     *timer4_pin_port &= ~(timer4_pin_mask);  // keep pin low after stop
   }
 }
+#endif
 
+
+#ifdef USE_TIMER5
 ISR(TIMER5_COMPA_vect)
 {
   if (timer5_toggle_count != 0)
@@ -597,5 +613,4 @@ ISR(TIMER5_COMPA_vect)
     *timer5_pin_port &= ~(timer5_pin_mask);  // keep pin low after stop
   }
 }
-
 #endif

hardware/arduino/avr/cores/arduino/WString.h

@@ -35,7 +35,7 @@
 //     -std=c++0x
 
 class __FlashStringHelper;
-#define F(string_literal) (reinterpret_cast<__FlashStringHelper *>(PSTR(string_literal)))
+#define F(string_literal) (reinterpret_cast<const __FlashStringHelper *>(PSTR(string_literal)))
 
 // An inherited class for holding the result of a concatenation.  These
 // result objects are assumed to be writable by subsequent concatenations.