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      1 /*
      2  * Author: Yevgeniy Kiveisha <yevgeniy.kiveisha (at) intel.com>
      3  * Copyright (c) 2014 Intel Corporation.
      4  *
      5  * Contributions: Jon Trulson <jtrulson (at) ics.com>
      6  *
      7  * Permission is hereby granted, free of charge, to any person obtaining
      8  * a copy of this software and associated documentation files (the
      9  * "Software"), to deal in the Software without restriction, including
     10  * without limitation the rights to use, copy, modify, merge, publish,
     11  * distribute, sublicense, and/or sell copies of the Software, and to
     12  * permit persons to whom the Software is furnished to do so, subject to
     13  * the following conditions:
     14  *
     15  * The above copyright notice and this permission notice shall be
     16  * included in all copies or substantial portions of the Software.
     17  *
     18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
     19  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
     20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
     21  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
     22  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
     23  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
     24  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
     25  */
     26 
     27 #include <iostream>
     28 #include <stdexcept>
     29 #include <unistd.h>
     30 
     31 #include "lcd_private.h"
     32 #include "hd44780_bits.h"
     33 #include "jhd1313m1.h"
     34 
     35 using namespace upm;
     36 
     37 Jhd1313m1::Jhd1313m1(int bus, int lcdAddress, int rgbAddress)
     38   : m_i2c_lcd_rgb(bus), Lcm1602(bus, lcdAddress, false)
     39 {
     40     m_rgb_address = rgbAddress;
     41     m_name = "Jhd1313m1";
     42 
     43     mraa::Result ret = m_i2c_lcd_rgb.address(m_rgb_address);
     44     if (ret != mraa::SUCCESS) {
     45         throw std::invalid_argument(std::string(__FUNCTION__) +
     46                                     ": I2c.address() failed");
     47     }
     48 
     49     usleep(50000);
     50     ret = command(LCD_FUNCTIONSET | LCD_2LINE);
     51 
     52     if (!ret) {
     53         ret = command(LCD_FUNCTIONSET | LCD_2LINE);
     54         UPM_CHECK_MRAA_SUCCESS(ret, "Unable to initialise the LCD controller");
     55     }
     56 
     57     usleep(100);
     58     ret = displayOn();
     59 
     60     UPM_CHECK_MRAA_SUCCESS(ret, "Unable to initialise the LCD controller");
     61 
     62     usleep(100);
     63     ret = clear();
     64     UPM_CHECK_MRAA_SUCCESS(ret, "Unable to initialise the LCD controller");
     65 
     66     usleep(2000);
     67     ret = command(LCD_ENTRYMODESET | LCD_ENTRYLEFT | LCD_ENTRYSHIFTDECREMENT);
     68     UPM_CHECK_MRAA_SUCCESS(ret, "Unable to initialise the LCD controller");
     69 
     70     ret = m_i2c_lcd_rgb.writeReg(0, 0);
     71     UPM_CHECK_MRAA_SUCCESS(ret, "Unable to initialise the RGB controller");
     72     ret = m_i2c_lcd_rgb.writeReg(1, 0);
     73     UPM_CHECK_MRAA_SUCCESS(ret, "Unable to initialise the RGB controller");
     74     ret = m_i2c_lcd_rgb.writeReg(0x08, 0xAA);
     75     UPM_CHECK_MRAA_SUCCESS(ret, "Unable to initialise the RGB controller");
     76 
     77     ret = m_i2c_lcd_rgb.writeReg(0x04, 0xFF);
     78     UPM_CHECK_MRAA_SUCCESS(ret, "Unable to initialise the RGB controller");
     79     ret = m_i2c_lcd_rgb.writeReg(0x03, 0xFF);
     80     UPM_CHECK_MRAA_SUCCESS(ret, "Unable to initialise the RGB controller");
     81     ret = m_i2c_lcd_rgb.writeReg(0x02, 0xFF);
     82     UPM_CHECK_MRAA_SUCCESS(ret, "Unable to initialise the RGB controller");
     83 }
     84 
     85 Jhd1313m1::~Jhd1313m1()
     86 {
     87     clear();
     88     setColor(0x00, 0x00, 0x00);
     89 }
     90 
     91 mraa::Result
     92 Jhd1313m1::setColor(uint8_t r, uint8_t g, uint8_t b)
     93 {
     94     mraa::Result ret;
     95 
     96     ret = m_i2c_lcd_rgb.writeReg(0, 0);
     97     UPM_GOTO_ON_MRAA_FAIL(ret, beach);
     98     ret = m_i2c_lcd_rgb.writeReg(1, 0);
     99     UPM_GOTO_ON_MRAA_FAIL(ret, beach);
    100     ret = m_i2c_lcd_rgb.writeReg(0x08, 0xAA);
    101     UPM_GOTO_ON_MRAA_FAIL(ret, beach);
    102 
    103     ret = m_i2c_lcd_rgb.writeReg(0x04, r);
    104     UPM_GOTO_ON_MRAA_FAIL(ret, beach);
    105     ret = m_i2c_lcd_rgb.writeReg(0x03, g);
    106     UPM_GOTO_ON_MRAA_FAIL(ret, beach);
    107     ret = m_i2c_lcd_rgb.writeReg(0x02, b);
    108 
    109 beach:
    110     return ret;
    111 }
    112 
    113 mraa::Result
    114 Jhd1313m1::scroll(bool direction)
    115 {
    116     if (direction) {
    117         return scrollDisplayLeft();
    118     } else {
    119         return scrollDisplayRight();
    120     }
    121 }
    122 
    123 mraa::Result Jhd1313m1::command(uint8_t cmd)
    124 {
    125   return m_i2c_lcd_control->writeReg(LCD_CMD, cmd);
    126 
    127 }
    128 mraa::Result Jhd1313m1::data(uint8_t cmd)
    129 {
    130   return m_i2c_lcd_control->writeReg(LCD_DATA, cmd);
    131 }
    132