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arduino-cli/libraries/RF24/utility/ATTiny/RF24_arch_config.h

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+/*
+ TMRh20 2015
+ ATTiny Configuration File
+*/
+
+#ifndef __RF24_ARCH_CONFIG_H__
+#define __RF24_ARCH_CONFIG_H__
+
+/*** USER DEFINES:  ***/
+//#define FAILURE_HANDLING
+//#define MINIMAL
+/**********************/
+
+#define rf24_max(a, b) (a>b?a:b)
+#define rf24_min(a, b) (a<b?a:b)
+
+#if ARDUINO < 100
+
+    #include <WProgram.h>
+
+#else
+    #include <Arduino.h>
+#endif
+
+#include <stddef.h>
+
+// Include the header file for SPI functions ( Main SPI code is contained in RF24.cpp for simplicity )
+#include "spi.h"
+
+#define _SPI SPI
+
+#ifdef SERIAL_DEBUG
+    #define IF_SERIAL_DEBUG(x) ({x;})
+#else
+    #define IF_SERIAL_DEBUG(x)
+    #if defined(RF24_TINY)
+        #define printf_P(...)
+    #endif
+#endif
+
+#include <avr/pgmspace.h>
+
+#define PRIPSTR "%S"
+
+#endif // __RF24_ARCH_CONFIG_H__
+

arduino-cli/libraries/RF24/utility/ATTiny/spi.h

@@ -0,0 +1,55 @@
+// ATTiny support code is from https://github.com/jscrane/RF24
+
+/**
+ * @file spi.h
+ * \cond HIDDEN_SYMBOLS
+ * Class declaration for SPI helper files
+ */
+
+#include <stdio.h>
+#include <Arduino.h>
+#include <avr/pgmspace.h>
+
+#define SPI_CLOCK_DIV4 0x00
+#define SPI_CLOCK_DIV16 0x01
+#define SPI_CLOCK_DIV64 0x02
+#define SPI_CLOCK_DIV128 0x03
+#define SPI_CLOCK_DIV2 0x04
+#define SPI_CLOCK_DIV8 0x05
+#define SPI_CLOCK_DIV32 0x06
+//#define SPI_CLOCK_DIV64 0x07
+
+#define SPI_MODE0 0x00
+#define SPI_MODE1 0x04
+#define SPI_MODE2 0x08
+#define SPI_MODE3 0x0C
+
+#define SPI_MODE_MASK 0x0C  // CPOL = bit 3, CPHA = bit 2 on SPCR
+#define SPI_CLOCK_MASK 0x03  // SPR1 = bit 1, SPR0 = bit 0 on SPCR
+#define SPI_2XCLOCK_MASK 0x01  // SPI2X = bit 0 on SPSR
+
+class SPIClass {
+public:
+    static byte transfer(byte _data);
+
+    // SPI Configuration methods
+
+    inline static void attachInterrupt();
+
+    inline static void detachInterrupt(); // Default
+
+    static void begin(); // Default
+    static void end();
+
+    static void setBitOrder(uint8_t);
+
+    static void setDataMode(uint8_t);
+
+    static void setClockDivider(uint8_t);
+};
+
+extern SPIClass SPI;
+
+/**
+ * \endcond
+ */