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ef74a7b137
Signed-off-by: Stefan Andritoiu <stefan.andritoiu@intel.com> Signed-off-by: Mihai Tudor Panu <mihai.tudor.panu@intel.com> Conflicts: src/CMakeLists.txt
124 lines
3.3 KiB
C++
124 lines
3.3 KiB
C++
/*
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* Author: Yevgeniy Kiveisha <yevgeniy.kiveisha@intel.com>
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* Copyright (c) 2014 Intel Corporation.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#pragma once
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#include <string>
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#include <mraa/aio.hpp>
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#include <mraa/gpio.hpp>
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#include <mraa/spi.hpp>
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#define HIGH 1
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#define LOW 0
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namespace upm {
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/**
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* @brief FastPixel LPD8806 library
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* @defgroup lpd8806 libupm-lpd8806
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* @ingroup adafruit spi led
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*/
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/**
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* @library lpd8806
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* @sensor lpd8806
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* @comname LPD8806 RGB LED Strip Controller
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* @type led
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* @man adafruit
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* @con spi
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*
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* @brief API for the LPD8806 RGB LED Strip Controller
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*
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* FastPixel* LPD8806 is an RGB LED strip controller.
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*
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* @image html lpd8806.jpg
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* @snippet lpd8806.cxx Interesting
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*/
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class LPD8806 {
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public:
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/**
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* Instantiates an LPD8806 object
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*
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* @param pixelCount Number of pixels in the strip
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* @param csn Chip select pin
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*/
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LPD8806 (uint16_t pixelCount, uint8_t csn);
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/**
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* LPD8806 object destructor; basically, it frees the allocated
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* pixel buffer.
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*/
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~LPD8806 ();
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/**
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* @param pixelOffset Pixel offset in the strip of the pixel
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* @param r Red LED
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* @param g Green LED
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* @param b Blue LED
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*/
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void setPixelColor (uint16_t pixelOffset, uint8_t r, uint8_t g, uint8_t b);
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/**
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* Writes the data stored in the array of pixels to the chip
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*/
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void show (void);
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/**
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* Returns the length of the LED strip
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*/
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uint16_t getStripLength (void);
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/**
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* Returns the name of the component
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*/
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std::string name()
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{
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return m_name;
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}
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private:
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std::string m_name;
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mraa::Spi m_spi;
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mraa::Gpio m_csnPinCtx;
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uint8_t* m_pixels;
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uint8_t m_pixelsCount;
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uint8_t readRegister (uint8_t reg);
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void writeRegister (uint8_t reg, uint8_t data);
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/**
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* Sets the chip select pin to LOW
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*/
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mraa::Result CSOn ();
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/**
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* Sets the chip select pin to HIGH
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*/
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mraa::Result CSOff ();
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};
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}
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