Add support for MIPS uC (PIC32X) and the ancient mpide "IDE" used for it

avrpins.h

@@ -952,4 +952,49 @@ MAKE_PIN(P78, PIOB, PIO_PB23); // Unconnected
 
 #endif // __arm__
 
+#if defined(__MIPSEL__)
+// MIPSEL (MIPS architecture using a little endian byte order)
+
+// MIPS size_t = 4
+#define pgm_read_pointer(p) pgm_read_dword(p)
+
+#define MAKE_PIN(className, pin) \
+class className { \
+public: \
+  static void Set() { \
+    digitalWrite(pin, HIGH);\
+  } \
+  static void Clear() { \
+    digitalWrite(pin, LOW); \
+  } \
+  static void SetDirRead() { \
+    pinMode(pin, INPUT); \
+  } \
+  static void SetDirWrite() { \
+    pinMode(pin, OUTPUT); \
+  } \
+  static uint8_t IsSet() { \
+    return digitalRead(pin); \
+  } \
+};
+
+// 0 .. 13 - Digital pins
+MAKE_PIN(P0, 0); // RX
+MAKE_PIN(P1, 1); // TX
+MAKE_PIN(P2, 2); //
+MAKE_PIN(P3, 3); //
+MAKE_PIN(P4, 4); //
+MAKE_PIN(P5, 5); //
+MAKE_PIN(P6, 6); //
+MAKE_PIN(P7, 7); //
+MAKE_PIN(P8, 8); //
+MAKE_PIN(P9, 9); //
+MAKE_PIN(P10, 10); //
+MAKE_PIN(P11, 11); //
+MAKE_PIN(P12, 12); //
+MAKE_PIN(P13, 13); //
+
+#undef MAKE_PIN
+#endif
+
 #endif //_avrpins_h_

settings.h

@@ -78,15 +78,7 @@ e-mail   :  support@circuitsathome.com
 // No user serviceable parts below this line.
 // DO NOT change anything below here unless you are a developer!
 
-#if defined(ARDUINO) && ARDUINO >=100
+#include "version_helper.h"
-#include <Arduino.h>
-#else
-#include <WProgram.h>
-#include <pins_arduino.h>
-#include <avr/pgmspace.h>
-#include <avr/io.h>
-#define F(str) (str)
-#endif
 
 #if defined(__GNUC__) && defined(__AVR__)
 #ifndef GCC_VERSION
@@ -137,8 +129,10 @@ e-mail   :  support@circuitsathome.com
 #define USING_SPI4TEENSY3 0
 #endif
 
-#if defined(ARDUINO_SAM_DUE) && defined(__SAM3X8E__)
+#if (defined(ARDUINO_SAM_DUE) && defined(__SAM3X8E__))
-#include <SPI.h> // Use the Arduino SPI library for the Arduino Due
+#include <SPI.h> // Use the Arduino SPI library
+#endif
+#if  defined(__PIC32MX__) || defined(__PIC32MZ__)
+#include <../../libraries/SPI/SPI.h> // Hack to use the SPI library
 #endif
-
 #endif	/* SETTINGS_H */

usbhost.h

@@ -39,12 +39,16 @@ public:
                 SPI_SS::SetDirWrite();
                 SPI_SS::Set();
         }
-#elif defined(ARDUINO_SAM_DUE) && defined(__SAM3X8E__)
+#elif !defined(SPDR)
         static void init() {
                 SPI_SS::SetDirWrite();
                 SPI_SS::Set();
                 SPI.begin();
+#if defined(__MIPSEL__)
+                SPI.setClockDivider(2);
+#else
                 SPI.setClockDivider(4); // Set speed to 84MHz/4=21MHz - the MAX3421E can handle up to 26MHz
+#endif
         }
 #else
         static void init() {
@@ -74,6 +78,8 @@ typedef SPi< Pb7, Pb5, Pb6, Pb4 > spi;
 typedef SPi< P13, P11, P12, P10 > spi;
 #elif defined(ARDUINO_SAM_DUE) && defined(__SAM3X8E__)
 typedef SPi< P76, P75, P74, P10 > spi;
+#elif defined(__MIPSEL__)
+typedef SPi< P13, P11, P12, P10 > spi;
 #else
 #error "No SPI entry in usbhost.h"
 #endif
@@ -135,7 +141,7 @@ void MAX3421e< SPI_SS, INTR >::regWr(uint8_t reg, uint8_t data) {
         c[0] = reg | 0x02;
         c[1] = data;
         spi4teensy3::send(c, 2);
-#elif defined(ARDUINO_SAM_DUE) && defined(__SAM3X8E__)
+#elif !defined(SPDR)
         SPI.transfer(reg | 0x02);
         SPI.transfer(data);
 #else
@@ -159,7 +165,7 @@ uint8_t* MAX3421e< SPI_SS, INTR >::bytesWr(uint8_t reg, uint8_t nbytes, uint8_t*
         spi4teensy3::send(reg | 0x02);
         spi4teensy3::send(data_p, nbytes);
         data_p += nbytes;
-#elif defined(ARDUINO_SAM_DUE) && defined(__SAM3X8E__)
+#elif !defined(SPDR)
         SPI.transfer(reg | 0x02);
         while(nbytes) {
                 SPI.transfer(*data_p);
@@ -201,7 +207,7 @@ uint8_t MAX3421e< SPI_SS, INTR >::regRd(uint8_t reg) {
         spi4teensy3::send(reg);
         uint8_t rv = spi4teensy3::receive();
         SPI_SS::Set();
-#elif defined(ARDUINO_SAM_DUE) && defined(__SAM3X8E__)
+#elif !defined(SPDR)
         SPI.transfer(reg);
         uint8_t rv = SPI.transfer(0);
         SPI_SS::Set();
@@ -227,7 +233,7 @@ uint8_t* MAX3421e< SPI_SS, INTR >::bytesRd(uint8_t reg, uint8_t nbytes, uint8_t*
         spi4teensy3::send(reg);
         spi4teensy3::receive(data_p, nbytes);
         data_p += nbytes;
-#elif defined(ARDUINO_SAM_DUE) && defined(__SAM3X8E__)
+#elif !defined(SPDR)
         SPI.transfer(reg);
         while(nbytes) {
             *data_p++ = SPI.transfer(0);

version_helper.h

@@ -0,0 +1,222 @@
+/* Copyright (C) 2011 Circuits At Home, LTD. All rights reserved.
+
+This software may be distributed and modified under the terms of the GNU
+General Public License version 2 (GPL2) as published by the Free Software
+Foundation and appearing in the file GPL2.TXT included in the packaging of
+this file. Please note that GPL2 Section 2[b] requires that all works based
+on this software must also be made publicly available under the terms of
+the GPL2 ("Copyleft").
+
+Contact information
+-------------------
+
+Circuits At Home, LTD
+Web      :  http://www.circuitsathome.com
+e-mail   :  support@circuitsathome.com
+ */
+
+/*
+ * Universal Arduino(tm) "IDE" fixups.
+ * Includes fixes for versions as low as 0023, used by Digilent.
+ */
+
+#if defined(ARDUINO) && ARDUINO >=100
+#include <Arduino.h>
+#else
+#include <WProgram.h>
+#include <pins_arduino.h>
+#ifdef __AVR__
+#include <avr/pgmspace.h>
+#include <avr/io.h>
+#else
+#endif
+#endif
+
+#ifndef __PGMSPACE_H_
+#define __PGMSPACE_H_ 1
+
+#include <inttypes.h>
+
+#ifndef PROGMEM
+#define PROGMEM
+#endif
+#ifndef PGM_P
+#define PGM_P  const char *
+#endif
+#ifndef PSTR
+#define PSTR(str) (str)
+#endif
+#ifndef F
+#define F(str) (str)
+#endif
+#ifndef _SFR_BYTE
+#define _SFR_BYTE(n) (n)
+#endif
+
+#ifndef prog_void
+typedef void prog_void;
+#endif
+#ifndef prog_char
+typedef char prog_char;
+#endif
+#ifndef prog_uchar
+typedef unsigned char prog_uchar;
+#endif
+#ifndef prog_int8_t
+typedef int8_t prog_int8_t;
+#endif
+#ifndef prog_uint8_t
+typedef uint8_t prog_uint8_t;
+#endif
+#ifndef prog_int16_t
+typedef int16_t prog_int16_t;
+#endif
+#ifndef prog_uint16_t
+typedef uint16_t prog_uint16_t;
+#endif
+#ifndef prog_int32_t
+typedef int32_t prog_int32_t;
+#endif
+#ifndef prog_uint32_t
+typedef uint32_t prog_uint32_t;
+#endif
+
+#ifndef memchr_P
+#define memchr_P(str, c, len) memchr((str), (c), (len))
+#endif
+#ifndef memcmp_P
+#define memcmp_P(a, b, n) memcmp((a), (b), (n))
+#endif
+#ifndef memcpy_P
+#define memcpy_P(dest, src, num) memcpy((dest), (src), (num))
+#endif
+#ifndef memmem_P
+#define memmem_P(a, alen, b, blen) memmem((a), (alen), (b), (blen))
+#endif
+#ifndef memrchr_P
+#define memrchr_P(str, val, len) memrchr((str), (val), (len))
+#endif
+#ifndef strcat_P
+#define strcat_P(dest, src) strcat((dest), (src))
+#endif
+#ifndef strchr_P
+#define strchr_P(str, c) strchr((str), (c))
+#endif
+#ifndef strchrnul_P
+#define strchrnul_P(str, c) strchrnul((str), (c))
+#endif
+#ifndef strcmp_P
+#define strcmp_P(a, b) strcmp((a), (b))
+#endif
+#ifndef strcpy_P
+#define strcpy_P(dest, src) strcpy((dest), (src))
+#endif
+#ifndef strcasecmp_P
+#define strcasecmp_P(a, b) strcasecmp((a), (b))
+#endif
+#ifndef strcasestr_P
+#define strcasestr_P(a, b) strcasestr((a), (b))
+#endif
+#ifndef strlcat_P
+#define strlcat_P(dest, src, len) strlcat((dest), (src), (len))
+#endif
+#ifndef strlcpy_P
+#define strlcpy_P(dest, src, len) strlcpy((dest), (src), (len))
+#endif
+#ifndef strlen_P
+#define strlen_P(s) strlen((const char *)(s))
+#endif
+#ifndef strnlen_P
+#define strnlen_P(str, len) strnlen((str), (len))
+#endif
+#ifndef strncmp_P
+#define strncmp_P(a, b, n) strncmp((a), (b), (n))
+#endif
+#ifndef strncasecmp_P
+#define strncasecmp_P(a, b, n) strncasecmp((a), (b), (n))
+#endif
+#ifndef strncat_P
+#define strncat_P(a, b, n) strncat((a), (b), (n))
+#endif
+#ifndef strncpy_P
+#define strncpy_P(a, b, n) strncmp((a), (b), (n))
+#endif
+#ifndef strpbrk_P
+#define strpbrk_P(str, chrs) strpbrk((str), (chrs))
+#endif
+#ifndef strrchr_P
+#define strrchr_P(str, c) strrchr((str), (c))
+#endif
+#ifndef strsep_P
+#define strsep_P(strp, delim) strsep((strp), (delim))
+#endif
+#ifndef strspn_P
+#define strspn_P(str, chrs) strspn((str), (chrs))
+#endif
+#ifndef strstr_P
+#define strstr_P(a, b) strstr((a), (b))
+#endif
+#ifndef sprintf_P
+#define sprintf_P(s, ...) sprintf((s), __VA_ARGS__)
+#endif
+#ifndef vfprintf_P
+#define vfprintf_P(s, ...) vfprintf((s), __VA_ARGS__)
+#endif
+#ifndef printf_P
+#define printf_P(...) printf(__VA_ARGS__)
+#endif
+#ifndef snprintf_P
+#define snprintf_P(s, n, ...) ((s), (n), __VA_ARGS__)
+#endif
+#ifndef vsprintf_P
+#define vsprintf_P(s, ...) ((s),__VA_ARGS__)
+#endif
+#ifndef vsnprintf_P
+#define vsnprintf_P(s, n, ...) ((s), (n),__VA_ARGS__)
+#endif
+#ifndef fprintf_P
+#define fprintf_P(s, ...) ((s), __VA_ARGS__)
+#endif
+
+#ifndef pgm_read_byte
+#define pgm_read_byte(addr) (*(const unsigned char *)(addr))
+#endif
+#ifndef pgm_read_word
+#define pgm_read_word(addr) (*(const unsigned short *)(addr))
+#endif
+#ifndef pgm_read_dword
+#define pgm_read_dword(addr) (*(const unsigned long *)(addr))
+#endif
+#ifndef pgm_read_float
+#define pgm_read_float(addr) (*(const float *)(addr))
+#endif
+
+#ifndef pgm_read_byte_near
+#define pgm_read_byte_near(addr) pgm_read_byte(addr)
+#endif
+#ifndef pgm_read_word_near
+#define pgm_read_word_near(addr) pgm_read_word(addr)
+#endif
+#ifndef pgm_read_dword_near
+#define pgm_read_dword_near(addr) pgm_read_dword(addr)
+#endif
+#ifndef pgm_read_float_near
+#define pgm_read_float_near(addr) pgm_read_float(addr)
+#endif
+#ifndef pgm_read_byte_far
+#define pgm_read_byte_far(addr) pgm_read_byte(addr)
+#endif
+#ifndef pgm_read_word_far
+#define pgm_read_word_far(addr) pgm_read_word(addr)
+#endif
+#ifndef pgm_read_dword_far
+#define pgm_read_dword_far(addr) pgm_read_dword(addr)
+#endif
+#ifndef pgm_read_float_far
+#define pgm_read_float_far(addr) pgm_read_float(addr)
+#endif
+
+#ifndef pgm_read_pointer
+#define pgm_read_pointer
+#endif
+#endif