From 0f5a5259ec038537ea51de0059e711fdeebc6ece Mon Sep 17 00:00:00 2001
From: Cristian Maglie <c.maglie@bug.st>
Date: Fri, 15 Mar 2013 12:39:04 +0100
Subject: [PATCH] Added avr/pgmspace.h compatibility layer for Due Boards Fixes
 #1317

---
 build/shared/revisions.txt                    |  1 +
 hardware/arduino/sam/cores/arduino/Arduino.h  |  6 +++
 .../arduino/sam/cores/arduino/avr/interrupt.h |  0
 .../arduino/sam/cores/arduino/avr/pgmspace.h  | 43 +++++++++++++++++++
 4 files changed, 50 insertions(+)
 create mode 100644 hardware/arduino/sam/cores/arduino/avr/interrupt.h
 create mode 100644 hardware/arduino/sam/cores/arduino/avr/pgmspace.h

diff --git a/build/shared/revisions.txt b/build/shared/revisions.txt
index 9ec12e161..118678623 100644
--- a/build/shared/revisions.txt
+++ b/build/shared/revisions.txt
@@ -10,6 +10,7 @@ ARDUINO 1.5.3 BETA
 [arduino core]
 * sam: Fixed delayMicrosecond() when interrupts are disabled
 * sam: Upgraded libsam, and added missing modules (CAN, ETH, etc.) (Thibaut Viard)
+* sam: Added compatibility for avr/pgmspace.h (Paul Stoffregen)
 
 [libraries]
 * sam: Added CAN library (still in early stage of development) (Palliser)
diff --git a/hardware/arduino/sam/cores/arduino/Arduino.h b/hardware/arduino/sam/cores/arduino/Arduino.h
index a1682a36c..12685a600 100644
--- a/hardware/arduino/sam/cores/arduino/Arduino.h
+++ b/hardware/arduino/sam/cores/arduino/Arduino.h
@@ -24,6 +24,12 @@
 #include <string.h>
 #include <math.h>
 
+// some libraries and sketches depend on this
+// AVR stuff, assuming Arduino.h or WProgram.h
+// automatically includes it...
+#include <avr/pgmspace.h>
+#include <avr/interrupt.h>
+
 #include "binary.h"
 
 #ifdef __cplusplus
diff --git a/hardware/arduino/sam/cores/arduino/avr/interrupt.h b/hardware/arduino/sam/cores/arduino/avr/interrupt.h
new file mode 100644
index 000000000..e69de29bb
diff --git a/hardware/arduino/sam/cores/arduino/avr/pgmspace.h b/hardware/arduino/sam/cores/arduino/avr/pgmspace.h
new file mode 100644
index 000000000..aef5b9598
--- /dev/null
+++ b/hardware/arduino/sam/cores/arduino/avr/pgmspace.h
@@ -0,0 +1,43 @@
+#ifndef __PGMSPACE_H_
+#define __PGMSPACE_H_ 1
+
+#include <inttypes.h>
+
+#define PROGMEM
+#define PGM_P  const char *
+#define PSTR(str) (str)
+
+#define _SFR_BYTE(n) (n)
+
+typedef void prog_void;
+typedef char prog_char;
+typedef unsigned char prog_uchar;
+typedef int8_t prog_int8_t;
+typedef uint8_t prog_uint8_t;
+typedef int16_t prog_int16_t;
+typedef uint16_t prog_uint16_t;
+typedef int32_t prog_int32_t;
+typedef uint32_t prog_uint32_t;
+
+#define memcpy_P(dest, src, num) memcpy((dest), (src), (num))
+#define strcpy_P(dest, src) strcpy((dest), (src))
+#define strcat_P(dest, src) strcat((dest), (src))
+#define strcmp_P(a, b) strcmp((a), (b))
+#define strstr_P(a, b) strstr((a), (b))
+#define sprintf_P(s, f, ...) sprintf((s), (f), __VA_ARGS__)
+
+#define pgm_read_byte(addr) (*(const unsigned char *)(addr))
+#define pgm_read_word(addr) (*(const unsigned short *)(addr))
+#define pgm_read_dword(addr) (*(const unsigned long *)(addr))
+#define pgm_read_float(addr) (*(const float *)(addr))
+
+#define pgm_read_byte_near(addr) pgm_read_byte(addr)
+#define pgm_read_word_near(addr) pgm_read_word(addr)
+#define pgm_read_dword_near(addr) pgm_read_dword(addr)
+#define pgm_read_float_near(addr) pgm_read_float(addr)
+#define pgm_read_byte_far(addr) pgm_read_byte(addr)
+#define pgm_read_word_far(addr) pgm_read_word(addr)
+#define pgm_read_dword_far(addr) pgm_read_dword(addr)
+#define pgm_read_float_far(addr) pgm_read_float(addr)
+
+#endif