/* * Author: Yevgeniy Kiveisha * 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 #include #include #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 my9221 led bar library * @defgroup my9221 libupm-9221 */ /** * @brief C++ API for MY9221 led bar module * * This file defines the MY9221 C++ interface for libmy9221 * * @ingroup my9221 gpio * @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) * @param direction up or down, true is up and is the default */ mraa_result_t setBarLevel (uint8_t level, bool direction=true); /** * 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; }; }