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7323b58b61
Signed-off-by: Jon Trulson <jtrulson@ics.com> Signed-off-by: Mihai Tudor Panu <mihai.tudor.panu@intel.com>
320 lines
10 KiB
C++
320 lines
10 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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* 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 <stdexcept>
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#include <string>
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#include <unistd.h>
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#include "hd44780_bits.h"
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#include "ssd1327.h"
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using namespace upm;
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#define INIT_SLEEP 50000
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#define CMD_SLEEP 10000
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SSD1327::SSD1327(int bus_in, int addr_in) : m_i2c_lcd_control(bus_in)
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{
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mraa::Result error = mraa::SUCCESS;
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m_lcd_control_address = addr_in;
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m_name = "SSD1327";
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error = m_i2c_lcd_control.address(m_lcd_control_address);
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if (error != mraa::SUCCESS) {
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throw std::invalid_argument(std::string(__FUNCTION__) +
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": I2c.address() failed");
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return;
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}
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usleep(INIT_SLEEP);
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m_i2c_lcd_control.writeReg(LCD_CMD, 0xFD); // Unlock OLED driver IC MCU
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// interface from entering command.
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// i.e: Accept commands
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usleep(INIT_SLEEP);
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m_i2c_lcd_control.writeReg(LCD_CMD, 0x12);
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usleep(INIT_SLEEP);
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error = m_i2c_lcd_control.writeReg(LCD_CMD, 0xAE); // Set display off
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usleep(INIT_SLEEP);
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m_i2c_lcd_control.writeReg(LCD_CMD, 0xA8); // set multiplex ratio
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usleep(INIT_SLEEP);
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error = m_i2c_lcd_control.writeReg(LCD_CMD, 0x5F); // 96
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usleep(INIT_SLEEP);
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error = m_i2c_lcd_control.writeReg(LCD_CMD, 0xA1); // set display start line
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usleep(INIT_SLEEP);
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error = m_i2c_lcd_control.writeReg(LCD_CMD, 0x00); //
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usleep(INIT_SLEEP);
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error = m_i2c_lcd_control.writeReg(LCD_CMD, 0xA2); // set display offset
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usleep(INIT_SLEEP);
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error = m_i2c_lcd_control.writeReg(LCD_CMD, 0x60);
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usleep(INIT_SLEEP);
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error = m_i2c_lcd_control.writeReg(LCD_CMD, 0xA0); // set remap
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usleep(INIT_SLEEP);
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error = m_i2c_lcd_control.writeReg(LCD_CMD, 0x46);
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usleep(INIT_SLEEP);
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error = m_i2c_lcd_control.writeReg(LCD_CMD, 0xAB); // set vdd internal
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usleep(INIT_SLEEP);
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error = m_i2c_lcd_control.writeReg(LCD_CMD, 0x01); //
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usleep(INIT_SLEEP);
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error = m_i2c_lcd_control.writeReg(LCD_CMD, 0x81); // set contrasr
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usleep(INIT_SLEEP);
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error = m_i2c_lcd_control.writeReg(LCD_CMD, 0x53); // 100 nit
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usleep(INIT_SLEEP);
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error = m_i2c_lcd_control.writeReg(LCD_CMD, 0xB1); // Set Phase Length
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usleep(INIT_SLEEP);
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error = m_i2c_lcd_control.writeReg(LCD_CMD, 0X51); //
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usleep(INIT_SLEEP);
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error = m_i2c_lcd_control.writeReg(LCD_CMD, 0xB3); // Set Display Clock Divide Ratio/Oscillator
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// Frequency
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usleep(INIT_SLEEP);
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error = m_i2c_lcd_control.writeReg(LCD_CMD, 0x01); //
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usleep(INIT_SLEEP);
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error = m_i2c_lcd_control.writeReg(LCD_CMD, 0xB9); //
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usleep(INIT_SLEEP);
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error = m_i2c_lcd_control.writeReg(LCD_CMD, 0xBC); // set pre_charge
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// voltage/VCOMH
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usleep(INIT_SLEEP);
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error = m_i2c_lcd_control.writeReg(LCD_CMD, 0x08); // (0x08);
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usleep(INIT_SLEEP);
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error = m_i2c_lcd_control.writeReg(LCD_CMD, 0xBE); // set VCOMH
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usleep(INIT_SLEEP);
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error = m_i2c_lcd_control.writeReg(LCD_CMD, 0X07); // (0x07);
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usleep(INIT_SLEEP);
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error = m_i2c_lcd_control.writeReg(LCD_CMD, 0xB6); // Set second pre-charge
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// period
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usleep(INIT_SLEEP);
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error = m_i2c_lcd_control.writeReg(LCD_CMD, 0x01); //
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usleep(INIT_SLEEP);
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error = m_i2c_lcd_control.writeReg(LCD_CMD, 0xD5); // enable second precharge and enternal vsl
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usleep(INIT_SLEEP);
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error = m_i2c_lcd_control.writeReg(LCD_CMD, 0X62); // (0x62);
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usleep(INIT_SLEEP);
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error = m_i2c_lcd_control.writeReg(LCD_CMD, 0xA4); // Set Normal Display Mode
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usleep(INIT_SLEEP);
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error = m_i2c_lcd_control.writeReg(LCD_CMD, 0x2E); // Deactivate Scroll
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usleep(INIT_SLEEP);
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error = m_i2c_lcd_control.writeReg(LCD_CMD, 0xAF); // Switch on display
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usleep(INIT_SLEEP);
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// Row Address
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error = m_i2c_lcd_control.writeReg(LCD_CMD, 0x75); // Set Row Address
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usleep(INIT_SLEEP);
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error = m_i2c_lcd_control.writeReg(LCD_CMD, 0x00); // Start 0
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usleep(INIT_SLEEP);
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error = m_i2c_lcd_control.writeReg(LCD_CMD, 0x5f); // End 95
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usleep(INIT_SLEEP);
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// Column Address
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error = m_i2c_lcd_control.writeReg(LCD_CMD, 0x15); // Set Column Address
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usleep(INIT_SLEEP);
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error = m_i2c_lcd_control.writeReg(LCD_CMD, 0x08); // Start from 8th Column of
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// driver IC. This is 0th
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// Column for OLED
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usleep(INIT_SLEEP);
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error = m_i2c_lcd_control.writeReg(LCD_CMD, 0x37); // End at (8 + 47)th
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// column. Each Column has 2
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// pixels(segments)
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usleep(INIT_SLEEP);
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clear();
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setNormalDisplay();
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setVerticalMode();
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}
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SSD1327::~SSD1327()
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{
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}
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mraa::Result
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SSD1327::draw(uint8_t* data, int bytes)
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{
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mraa::Result error = mraa::SUCCESS;
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setHorizontalMode();
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for (int row = 0; row < bytes; row++) {
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for (uint8_t col = 0; col < 8; col += 2) {
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uint8_t value = 0x0;
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uint8_t bitOne = (data[row] << col) & 0x80;
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uint8_t bitTwo = (data[row] << (col + 1)) & 0x80;
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value |= (bitOne) ? grayHigh : 0x00;
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value |= (bitTwo) ? grayLow : 0x00;
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m_i2c_lcd_control.writeReg(LCD_DATA, value);
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usleep(CMD_SLEEP - 2000);
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}
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}
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return error;
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}
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/*
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* **************
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* virtual area
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* **************
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*/
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mraa::Result
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SSD1327::write(std::string msg)
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{
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mraa::Result error = mraa::SUCCESS;
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setVerticalMode();
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for (std::string::size_type i = 0; i < msg.size(); ++i) {
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writeChar(msg[i]);
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}
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return error;
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}
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mraa::Result
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SSD1327::setCursor(int row, int column)
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{
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mraa::Result error = mraa::SUCCESS;
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// Column Address
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m_i2c_lcd_control.writeReg(LCD_CMD, 0x15); /* Set Column Address */
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usleep(CMD_SLEEP);
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m_i2c_lcd_control.writeReg(LCD_CMD, 0x08 + (column * 4)); /* Start Column:
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Start from 8 */
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usleep(CMD_SLEEP);
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m_i2c_lcd_control.writeReg(LCD_CMD, 0x37); /* End Column */
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usleep(CMD_SLEEP);
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// Row Address
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m_i2c_lcd_control.writeReg(LCD_CMD, 0x75); /* Set Row Address */
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usleep(CMD_SLEEP);
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m_i2c_lcd_control.writeReg(LCD_CMD, 0x00 + (row * 8)); /* Start Row*/
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usleep(CMD_SLEEP);
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m_i2c_lcd_control.writeReg(LCD_CMD, 0x07 + (row * 8)); /* End Row*/
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usleep(CMD_SLEEP);
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return error;
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}
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mraa::Result
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SSD1327::clear()
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{
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mraa::Result error = mraa::SUCCESS;
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uint8_t columnIdx, rowIdx;
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for (rowIdx = 0; rowIdx < 12; rowIdx++) {
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// clear all columns
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for (columnIdx = 0; columnIdx < 12; columnIdx++) {
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writeChar(' ');
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}
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}
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return mraa::SUCCESS;
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}
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mraa::Result
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SSD1327::home()
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{
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return setCursor(0, 0);
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}
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void
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SSD1327::setGrayLevel(uint8_t level)
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{
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grayHigh = (level << 4) & 0xF0;
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grayLow = level & 0x0F;
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}
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/*
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* **************
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* private area
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* **************
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*/
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mraa::Result
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SSD1327::writeChar(uint8_t value)
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{
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mraa::Result rv = mraa::SUCCESS;
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if (value < 0x20 || value > 0x7F) {
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value = 0x20; // space
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}
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for (uint8_t row = 0; row < 8; row = row + 2) {
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for (uint8_t col = 0; col < 8; col++) {
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uint8_t data = 0x0;
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uint8_t bitOne = ((BasicFont[value - 32][row]) >> col) & 0x1;
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uint8_t bitTwo = ((BasicFont[value - 32][row + 1]) >> col) & 0x1;
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data |= (bitOne) ? grayHigh : 0x00;
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data |= (bitTwo) ? grayLow : 0x00;
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rv = m_i2c_lcd_control.writeReg(LCD_DATA, data);
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usleep(CMD_SLEEP - 2000);
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}
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}
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return rv;
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}
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mraa::Result
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SSD1327::setNormalDisplay()
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{
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return m_i2c_lcd_control.writeReg(LCD_CMD,
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DISPLAY_CMD_SET_NORMAL); // set to normal display '1' is ON
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}
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mraa::Result
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SSD1327::setHorizontalMode()
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{
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mraa::Result rv = mraa::SUCCESS;
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rv = m_i2c_lcd_control.writeReg(LCD_CMD, 0xA0); // remap to
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usleep(CMD_SLEEP);
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rv = m_i2c_lcd_control.writeReg(LCD_CMD, 0x42); // horizontal mode
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usleep(CMD_SLEEP);
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// Row Address
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rv = m_i2c_lcd_control.writeReg(LCD_CMD, 0x75); // Set Row Address
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usleep(CMD_SLEEP);
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rv = m_i2c_lcd_control.writeReg(LCD_CMD, 0x00); // Start 0
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usleep(CMD_SLEEP);
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rv = m_i2c_lcd_control.writeReg(LCD_CMD, 0x5f); // End 95
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usleep(CMD_SLEEP);
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// Column Address
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rv = m_i2c_lcd_control.writeReg(LCD_CMD, 0x15); // Set Column Address
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usleep(CMD_SLEEP);
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rv = m_i2c_lcd_control.writeReg(LCD_CMD, 0x08); // Start from 8th Column of driver
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// IC. This is 0th Column for OLED
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usleep(CMD_SLEEP);
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rv = m_i2c_lcd_control.writeReg(LCD_CMD, 0x37); // End at (8 + 47)th column. Each
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// Column has 2 pixels(or segments)
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usleep(CMD_SLEEP);
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return rv;
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}
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mraa::Result
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SSD1327::setVerticalMode()
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{
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mraa::Result rv = mraa::SUCCESS;
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rv = m_i2c_lcd_control.writeReg(LCD_CMD, 0xA0); // remap to
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usleep(CMD_SLEEP);
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rv = m_i2c_lcd_control.writeReg(LCD_CMD, 0x46); // Vertical mode
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usleep(CMD_SLEEP);
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return rv;
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}
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