From 49e6624d3817c87d71265790d774e0d34a47b8b4 Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@spreadspace.org>
Date: Sat, 24 Nov 2018 03:50:02 +0100
Subject: usb-lora example works now - but is not stable yet...

---
 contrib/radiohead.patch |  5 +++--
 lib/arduino-stub.cpp    | 35 +++++++++++++++++++++++++++++++++++
 usb-lora/usb-lora.cpp   | 12 +++++++-----
 3 files changed, 45 insertions(+), 7 deletions(-)

diff --git a/contrib/radiohead.patch b/contrib/radiohead.patch
index 3b154ee..a7040a6 100644
--- a/contrib/radiohead.patch
+++ b/contrib/radiohead.patch
@@ -1,6 +1,6 @@
 diff -Nur RadioHead-orig/RadioHead.h RadioHead/RadioHead.h
 --- RadioHead-orig/RadioHead.h	2018-11-15 11:40:24.000000000 +0100
-+++ RadioHead/RadioHead.h	2018-11-23 13:20:02.014133482 +0100
++++ RadioHead/RadioHead.h	2018-11-24 03:40:03.395279378 +0100
 @@ -317,8 +317,6 @@
  cd /tmp
  mkdir RadioHead
@@ -10,7 +10,7 @@ diff -Nur RadioHead-orig/RadioHead.h RadioHead/RadioHead.h
  cp /usr/local/projects/arduino/libraries/RadioHead/examples/cc110/cc110_client/cc110_client.pde application.cpp
  \endcode
  - Edit application.cpp and comment out any \#include <SPI.h> so it looks like:
-@@ -1283,11 +1281,13 @@
+@@ -1283,11 +1281,14 @@
  #elif (RH_PLATFORM == RH_PLATFORM_GENERIC_AVR8) 
   #include <avr/io.h>
   #include <avr/interrupt.h>
@@ -22,6 +22,7 @@ diff -Nur RadioHead-orig/RadioHead.h RadioHead/RadioHead.h
 - #include <SPI.h>
 + #include <Arduino.h>
 + #include <Arduino-SPI.h>
++ #define RH_ATTACHINTERRUPT_TAKES_PIN_NUMBER
  
  // For Steve Childress port to ARM M4 w/CMSIS with STM's Hardware Abstraction lib. 
  // See ArduinoWorkarounds.h (not supplied)
diff --git a/lib/arduino-stub.cpp b/lib/arduino-stub.cpp
index 201962f..38bc168 100644
--- a/lib/arduino-stub.cpp
+++ b/lib/arduino-stub.cpp
@@ -1006,6 +1006,41 @@ void detachInterrupt(uint8_t interruptNum) {
   }
 }
 
+#define IMPLEMENT_ISR(vect, interrupt) \
+  ISR(vect) { \
+    intFunc[interrupt](); \
+  }
+
+#if defined(__AVR_ATmega32U4__)
+
+IMPLEMENT_ISR(INT0_vect, EXTERNAL_INT_0)
+IMPLEMENT_ISR(INT1_vect, EXTERNAL_INT_1)
+IMPLEMENT_ISR(INT2_vect, EXTERNAL_INT_2)
+IMPLEMENT_ISR(INT3_vect, EXTERNAL_INT_3)
+IMPLEMENT_ISR(INT6_vect, EXTERNAL_INT_4)
+
+#elif defined(EICRA) && defined(EICRB)
+
+IMPLEMENT_ISR(INT0_vect, EXTERNAL_INT_2)
+IMPLEMENT_ISR(INT1_vect, EXTERNAL_INT_3)
+IMPLEMENT_ISR(INT2_vect, EXTERNAL_INT_4)
+IMPLEMENT_ISR(INT3_vect, EXTERNAL_INT_5)
+IMPLEMENT_ISR(INT4_vect, EXTERNAL_INT_0)
+IMPLEMENT_ISR(INT5_vect, EXTERNAL_INT_1)
+IMPLEMENT_ISR(INT6_vect, EXTERNAL_INT_6)
+IMPLEMENT_ISR(INT7_vect, EXTERNAL_INT_7)
+
+#else
+
+IMPLEMENT_ISR(INT0_vect, EXTERNAL_INT_0)
+IMPLEMENT_ISR(INT1_vect, EXTERNAL_INT_1)
+
+#if defined(EICRA) && defined(ISC20)
+IMPLEMENT_ISR(INT2_vect, EXTERNAL_INT_2)
+#endif
+
+#endif
+
 
 // ******************
 // this is from Arduino's WMath.cpp
diff --git a/usb-lora/usb-lora.cpp b/usb-lora/usb-lora.cpp
index d56946f..561f543 100644
--- a/usb-lora/usb-lora.cpp
+++ b/usb-lora/usb-lora.cpp
@@ -37,8 +37,8 @@ RH_RF95 lora;
 
 void recv_lora_msg()
 {
-  uint8_t buf[RH_RF95_MAX_MESSAGE_LEN];
-  uint8_t len = sizeof(buf);
+  uint8_t buf[RH_RF95_MAX_MESSAGE_LEN+1];
+  uint8_t len = sizeof(buf)-1;
 
   led2_on();
   if(!lora.recv(buf, &len)) {
@@ -46,10 +46,12 @@ void recv_lora_msg()
     led2_off();
     return;
   }
+  buf[len] = 0;
 
-  printf("lora.recv() got message: SNR = %d, data = ", lora.lastSNR());
-  for(uint8_t i = 0; i < len; ++i) printf("%s0x%02X", (i==0) ? "" : " ", buf[i]);
-  printf("\r\n");
+  // printf("lora.recv() got message: SNR = %d, data = ", lora.lastSNR());
+  // for(uint8_t i = 0; i < len; ++i) printf("%s0x%02X", (i==0) ? "" : " ", buf[i]);
+  // printf("\r\n");
+  printf("lora.recv() got message: SNR = %d, data = %s\r\n", lora.lastSNR(), buf);
   led2_off();
 }
 
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