Diff: WS2812/WS2812.h

Revision:

0:22391cd705e2

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+++ b/WS2812/WS2812.h	Sat Jun 15 20:52:15 2019 +0000
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+/* Copyright (c) 2012 cstyles, MIT License
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+ * and associated documentation files (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge, publish, distribute,
+ * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all copies or
+ * substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
+ * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef WS2812_H
+#define WS2812_H
+
+#include "mbed.h"
+
+#define FRAME_SIZE 24
+
+//!Library for the WS2812 RGB LED with integrated controller
+/*!
+The WS2812 is controller that is built into a range of LEDs
+*/
+class WS2812
+{
+public:
+    enum BrightnessControl { OFF, GLOBAL, PER_PIXEL };
+
+    /**
+    *   Constructor
+    *
+    * @param pin Output pin. Connect to "Din" on the first WS2812 in the strip
+    * @param size Number of LEDs in your strip
+    * @param zeroHigh How many NOPs to insert to ensure TOH is properly generated. See library description for more information.
+    * @param zeroLow How many NOPs to insert to ensure TOL is properly generated. See library description for more information.
+    * @param oneHigh How many NOPs to insert to ensure T1H is properly generated. See library description for more information.
+    * @param oneLow How many NOPs to insert to ensure T1L is properly generated. See library description for more information.
+    *
+    */
+    WS2812(PinName pin, int size, int zeroHigh, int zeroLow, int oneHigh, int oneLow);
+
+    /*!
+    Destroys instance.
+    */
+    ~WS2812();
+    
+    /**
+    *   Sets the timing parameters for the bit-banged signal
+    *
+    * @param zeroHigh How many NOPs to insert to ensure TOH is properly generated. See library description for more information.
+    * @param zeroLow How many NOPs to insert to ensure TOL is properly generated. See library description for more information.
+    * @param oneHigh How many NOPs to insert to ensure T1H is properly generated. See library description for more information.
+    * @param oneLow How many NOPs to insert to ensure T1L is properly generated. See library description for more information.
+    *
+    */
+    void setDelays(int zeroHigh, int zeroLow, int oneHigh, int oneLow);
+
+    /**
+    *   Writes the given buffer to the LED strip with the given offsets.
+    *   NOTE: This function is timing critical, therefore interrupts are disabled during the transmission section.
+    *
+    * @param buf Pointer to the PixelArray buffer
+    * @param r_offset The offset where each each pixel pulls its red component. Wraps to beginning if end is reached.
+    * @param g_offset The offset where each each pixel pulls its green component. Wraps to beginning if end is reached.
+    * @param b_offset The offset where each each pixel pulls its blue component. Wraps to beginning if end is reached.
+    *
+    */
+    void write_offsets(int buf[], int r_offset = 0, int g_offset = 0, int b_offset = 0);
+
+
+    /**
+    *   Writes the given buffer to the LED strip
+    *   NOTE: This function is timing critical, therefore interrupts are disabled during the transmission section.
+    *
+    * @param buf Pointer to the PixelArray buffer
+    *
+    */
+    void write(int buf[]);
+    
+    /**
+    *   Sets the brightness mode
+    *
+    * @param bc The brightness control. Defaults to OFF. Possible values include OFF, GLOBAL, and PER_PIXEL
+    *
+    */
+    void useII(BrightnessControl bc);
+    
+    /**
+    *   Sets the global brightness level.
+    *
+    * @param II The brightness level. Possible values include 0 - 255 (0x00 - 0xFF).
+    *
+    */
+    void setII(unsigned char II);
+    
+
+
+private:
+
+    int __size;
+    int __zeroHigh, __zeroLow, __oneHigh, __oneLow;
+    unsigned char __II;
+    BrightnessControl __use_II;
+    bool *__transmitBuf;
+    void __loadBuf(int buf[],int r_offset=0, int g_offset=0, int b_offset=0);
+    PinName __outPin;
+    DigitalOut __gpo;
+};
+
+#endif
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