/* * 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. */ #include #include #include "i2clcd.h" #include "i2clcd_private.h" using namespace upm; I2CLcd::I2CLcd(int bus, int lcdAddress) : m_i2c_lcd_control(bus) { m_lcd_control_address = lcdAddress; m_bus = bus; mraa_result_t ret = m_i2c_lcd_control.address(m_lcd_control_address); if (ret != MRAA_SUCCESS) { fprintf(stderr, "Messed up i2c bus\n"); } } I2CLcd::~I2CLcd() { } mraa_result_t I2CLcd::write(int row, int column, std::string msg) { setCursor(row, column); return write(msg); } mraa_result_t I2CLcd::createChar(uint8_t charSlot, uint8_t charData[]) { mraa_result_t error = MRAA_SUCCESS; charSlot &= 0x07; // only have 8 positions we can set error = m_i2c_lcd_control.writeReg(LCD_CMD, LCD_SETCGRAMADDR | (charSlot << 3)); if (error == MRAA_SUCCESS) { for (int i = 0; i < 8; i++) { error = m_i2c_lcd_control.writeReg(LCD_DATA, charData[i]); } } return error; } std::string I2CLcd::name() { return m_name; }