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9a74a3b4f5
Signed-off-by: Akira Tsukamoto <akira.tsukamoto@linaro.org> Signed-off-by: Abhishek Malik <abhishek.malik@intel.com>
142 lines
4.5 KiB
C++
142 lines
4.5 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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* Contributions: Jon Trulson <jtrulson@ics.com>
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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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#include <iostream>
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#include <stdexcept>
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#include <unistd.h>
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#include "lcd_private.hpp"
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#include "hd44780_bits.hpp"
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#include "jhd1313m1.hpp"
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using namespace upm;
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Jhd1313m1::Jhd1313m1(int bus, int lcdAddress, int rgbAddress)
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: m_i2c_lcd_rgb(bus), Lcm1602(bus, lcdAddress, false)
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{
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m_rgb_address = rgbAddress;
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m_name = "Jhd1313m1";
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mraa::Result ret = m_i2c_lcd_rgb.address(m_rgb_address);
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if (ret != mraa::SUCCESS) {
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throw std::invalid_argument(std::string(__FUNCTION__) +
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": I2c.address() failed");
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}
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/* HD44780 requires writing three times to initialize or reset
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according to the hardware errata on page 45 figure 23 of
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the Hitachi HD44780 datasheet */
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/* First try */
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usleep(50000);
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ret = command(LCD_FUNCTIONSET | LCD_8BITMODE);
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/* Second try */
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usleep(4500);
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ret = command(LCD_FUNCTIONSET | LCD_8BITMODE);
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/* Third try */
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usleep(150);
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ret = command(LCD_FUNCTIONSET | LCD_8BITMODE);
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UPM_CHECK_MRAA_SUCCESS(ret, "Unable to initialise the LCD controller");
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/* Set 2 row mode and font size */
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ret = command(LCD_FUNCTIONSET | LCD_8BITMODE | LCD_2LINE | LCD_5x10DOTS);
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UPM_CHECK_MRAA_SUCCESS(ret, "Unable to initialise the LCD controller");
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usleep(100);
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ret = displayOn();
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UPM_CHECK_MRAA_SUCCESS(ret, "Unable to initialise the LCD controller");
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usleep(100);
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ret = clear();
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UPM_CHECK_MRAA_SUCCESS(ret, "Unable to initialise the LCD controller");
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usleep(2000);
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ret = command(LCD_ENTRYMODESET | LCD_ENTRYLEFT | LCD_ENTRYSHIFTDECREMENT);
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UPM_CHECK_MRAA_SUCCESS(ret, "Unable to initialise the LCD controller");
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ret = m_i2c_lcd_rgb.writeReg(0, 0);
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UPM_CHECK_MRAA_SUCCESS(ret, "Unable to initialise the RGB controller");
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ret = m_i2c_lcd_rgb.writeReg(1, 0);
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UPM_CHECK_MRAA_SUCCESS(ret, "Unable to initialise the RGB controller");
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ret = m_i2c_lcd_rgb.writeReg(0x08, 0xAA);
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UPM_CHECK_MRAA_SUCCESS(ret, "Unable to initialise the RGB controller");
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ret = m_i2c_lcd_rgb.writeReg(0x04, 0xFF);
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UPM_CHECK_MRAA_SUCCESS(ret, "Unable to initialise the RGB controller");
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ret = m_i2c_lcd_rgb.writeReg(0x03, 0xFF);
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UPM_CHECK_MRAA_SUCCESS(ret, "Unable to initialise the RGB controller");
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ret = m_i2c_lcd_rgb.writeReg(0x02, 0xFF);
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UPM_CHECK_MRAA_SUCCESS(ret, "Unable to initialise the RGB controller");
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}
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Jhd1313m1::~Jhd1313m1()
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{
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clear();
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setColor(0x00, 0x00, 0x00);
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}
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mraa::Result
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Jhd1313m1::setColor(uint8_t r, uint8_t g, uint8_t b)
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{
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mraa::Result ret;
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ret = m_i2c_lcd_rgb.writeReg(0, 0);
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UPM_GOTO_ON_MRAA_FAIL(ret, beach);
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ret = m_i2c_lcd_rgb.writeReg(1, 0);
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UPM_GOTO_ON_MRAA_FAIL(ret, beach);
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ret = m_i2c_lcd_rgb.writeReg(0x08, 0xAA);
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UPM_GOTO_ON_MRAA_FAIL(ret, beach);
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ret = m_i2c_lcd_rgb.writeReg(0x04, r);
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UPM_GOTO_ON_MRAA_FAIL(ret, beach);
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ret = m_i2c_lcd_rgb.writeReg(0x03, g);
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UPM_GOTO_ON_MRAA_FAIL(ret, beach);
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ret = m_i2c_lcd_rgb.writeReg(0x02, b);
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beach:
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return ret;
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}
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mraa::Result
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Jhd1313m1::scroll(bool direction)
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{
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if (direction) {
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return scrollDisplayLeft();
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} else {
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return scrollDisplayRight();
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}
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}
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mraa::Result Jhd1313m1::command(uint8_t cmd)
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{
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return m_i2c_lcd_control->writeReg(LCD_CMD, cmd);
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}
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mraa::Result Jhd1313m1::data(uint8_t cmd)
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{
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return m_i2c_lcd_control->writeReg(LCD_DATA, cmd);
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}
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