Initial porting of TwoWire to API

Author: facchinm

cores/arduino/USB/USBAPI.h

@@ -157,7 +157,6 @@ class Serial_ : public Stream
 	int availableForStore(void);
 
 	USBDeviceClass &usb;
-	RingBuffer *_cdc_rx_buffer;
 	bool stalled;
 };
 extern Serial_ SerialUSB;

cores/arduino/WInterrupts.c

@@ -25,12 +25,6 @@ static voidFuncPtr ISRcallback[EXTERNAL_NUM_INTERRUPTS];
 static uint32_t    ISRlist[EXTERNAL_NUM_INTERRUPTS];
 static uint32_t    nints; // Stores total number of attached interrupts
 
-//      LOW 0
-//      HIGH 1
-#define CHANGE  2
-#define FALLING 3
-#define RISING  4
-
 /* Configure I/O interrupt sources */
 static void __initialize()
 {
@@ -61,7 +55,7 @@ static void __initialize()
  * \brief Specifies a named Interrupt Service Routine (ISR) to call when an interrupt occurs.
  *        Replaces any previous function that was attached to the interrupt.
  */
-void attachInterrupt(pin_size_t pin, voidFuncPtr callback, InterruptMode mode)
+void attachInterrupt(pin_size_t pin, voidFuncPtr callback, PinStatus mode)
 {
   static int enabled = 0;
   uint32_t config;

libraries/Wire/Wire.h

@@ -20,16 +20,14 @@
 #ifndef TwoWire_h
 #define TwoWire_h
 
-#include "Stream.h"
+#include "api/HardwareI2C.h"
 #include "variant.h"
-
 #include "SERCOM.h"
-#include "RingBuffer.h"
 
  // WIRE_HAS_END means Wire has end()
 #define WIRE_HAS_END 1
 
-class TwoWire : public Stream
+class TwoWire : public HardwareI2C
 {
   public:
     TwoWire(SERCOM *s, uint8_t pinSDA, uint8_t pinSCL);

platform.txt

@@ -79,13 +79,13 @@ build.usb_manufacturer="Unknown"
 # ----------------
 
 ## Compile c files
-recipe.c.o.pattern="{compiler.path}{compiler.c.cmd}" {compiler.c.flags} -DF_CPU={build.f_cpu} -DARDUINO={runtime.ide.version} -DARDUINO_{build.board} -DARDUINO_ARCH_{build.arch} {compiler.c.extra_flags} {build.extra_flags} {compiler.arm.cmsis.c.flags} {includes} "{source_file}" -o "{object_file}"
+recipe.c.o.pattern="{compiler.path}{compiler.c.cmd}" {compiler.c.flags} -DF_CPU={build.f_cpu} -DARDUINO={runtime.ide.version} -DARDUINO_{build.board} -DARDUINO_ARCH_{build.arch} {compiler.c.extra_flags} {build.extra_flags} {compiler.arm.cmsis.c.flags} -I{build.core.path}/api/deprecated {includes} "{source_file}" -o "{object_file}"
 
 ## Compile c++ files
-recipe.cpp.o.pattern="{compiler.path}{compiler.cpp.cmd}" {compiler.cpp.flags} -DF_CPU={build.f_cpu} -DARDUINO={runtime.ide.version} -DARDUINO_{build.board} -DARDUINO_ARCH_{build.arch} {compiler.cpp.extra_flags} {build.extra_flags} {compiler.arm.cmsis.c.flags} {includes} "{source_file}" -o "{object_file}"
+recipe.cpp.o.pattern="{compiler.path}{compiler.cpp.cmd}" {compiler.cpp.flags} -DF_CPU={build.f_cpu} -DARDUINO={runtime.ide.version} -DARDUINO_{build.board} -DARDUINO_ARCH_{build.arch} {compiler.cpp.extra_flags} {build.extra_flags} {compiler.arm.cmsis.c.flags} -I{build.core.path}/api/deprecated {includes} "{source_file}" -o "{object_file}"
 
 ## Compile S files
-recipe.S.o.pattern="{compiler.path}{compiler.S.cmd}" {compiler.S.flags} -DF_CPU={build.f_cpu} -DARDUINO={runtime.ide.version} -DARDUINO_{build.board} -DARDUINO_ARCH_{build.arch} {compiler.S.extra_flags} {build.extra_flags} {compiler.arm.cmsis.c.flags} {includes} "{source_file}" -o "{object_file}"
+recipe.S.o.pattern="{compiler.path}{compiler.S.cmd}" {compiler.S.flags} -DF_CPU={build.f_cpu} -DARDUINO={runtime.ide.version} -DARDUINO_{build.board} -DARDUINO_ARCH_{build.arch} {compiler.S.extra_flags} {build.extra_flags} {compiler.arm.cmsis.c.flags} -I{build.core.path}/api/deprecated {includes} "{source_file}" -o "{object_file}"
 
 ## Create archives
 # archive_file_path is needed for backwards compatibility with IDE 1.6.5 or older, IDE 1.6.6 or newer overrides this value