Diff: WS2811.h

Revision:

0:a8535703f23b

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WS2811.h	Sat Jan 04 00:40:08 2014 +0000
@@ -0,0 +1,63 @@
+// Mbed library to control WS2801-based RGB LED Strips
+// some portions (c) 2011 Jelmer Tiete
+// This library is ported from the Arduino implementation of Adafruit Industries
+// found at: http://github.com/adafruit/LPD8806
+// and their strips: http://www.adafruit.com/products/306
+// Released under the MIT License: http://mbed.org/license/mit
+//
+/*****************************************************************************/
+
+// Heavily modified by Jas Strong, 2012-10-04
+// Changed to use a virtual base class and to use software SPI.
+//
+// Modified by Ned Konz, December 2013.
+// Using three-phase DMA ala Paul Stoffegren's version.
+
+#ifndef MBED_WS2811_H
+#define MBED_WS2811_H
+
+#include "mbed.h"
+#include "LedStrip.h"
+
+#define MAX_LEDS_PER_STRIP 60
+
+extern "C" void DMA0_IRQHandler();
+extern "C" void TPM0_IRQHandler();
+
+class WS2811 : public LedStrip
+{
+public:
+    WS2811(unsigned n, unsigned pinNumber);
+
+    virtual void begin();
+    virtual void show();
+    virtual void blank();
+
+    static void startDMA();
+
+private:
+    uint32_t pinMask;
+
+    void writePixel(unsigned n, uint8_t *p);
+
+    // Class Static:
+
+    static bool initialized;
+    static uint32_t enabledPins;
+    static volatile bool dma_done;
+    static void wait_for_dma_done() { while (!dma_done) __WFI(); }
+
+    static void writeByte(uint8_t byte, uint32_t mask, uint32_t *dest);
+
+    static void hw_init();
+        static void io_init();
+        static void clock_init();
+        static void dma_init();
+        static void tpm_init();
+        static void dma_data_init();
+        
+    friend void TPM0_IRQHandler();
+};
+
+#endif
+