upm/src/my9221/my9221.h

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/*
* Author: Yevgeniy Kiveisha <yevgeniy.kiveisha@intel.com>
* Copyright (c) 2014 Intel Corporation.
*
* 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.
*/
#pragma once
#include <string>
#include <mraa/aio.h>
#include <mraa/gpio.h>
#define MAX_BIT_PER_BLOCK 16
#define CMDMODE 0x0000
#define BIT_HIGH 0x00ff
#define BIT_LOW 0x0000
#define HIGH 1
#define LOW 0
namespace upm {
/**
* @brief C++ API for MY9221 led bar module
*
* This file defines the MY9221 C++ interface for libmy9221
*
* @snippet led-bar.cxx Interesting
*/
class MY9221 {
public:
/**
* Instanciates a MY9221 object
*
* @param di data pin
* @param dcki clock pin
*/
MY9221 (uint8_t di, uint8_t dcki);
/**
* MY9221 object destructor
*/
~MY9221 ();
/**
* Set the level bar
*
* @param level selected level for the bar (1 - 10)
*/
mraa_result_t setBarLevel (uint8_t level);
/**
* Return name of the component
*/
std::string name()
{
return m_name;
}
private:
mraa_result_t lockData ();
mraa_result_t send16bitBlock (short data);
std::string m_name;
mraa_gpio_context m_clkPinCtx;
mraa_gpio_context m_dataPinCtx;
};
}