lcd: added grove-lcd rgb and deleted the old lcm1602 folder

Signed-off-by: Yevgeniy Kiveisha <yevgeniy.kiveisha@intel.com>

src/lcd/lcm1602.cxx

@@ -0,0 +1,141 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Author: Daniel Mosquera
+ * Copyright (c) 2013 Daniel Mosquera
+ *
+ * Author: Thomas Ingleby <thomas.c.ingleby@intel.com>
+ * 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 <string>
+#include <unistd.h>
+
+#include "lcm1602.h"
+
+using namespace upm;
+
+Lcm1602::Lcm1602(int bus_in, int addr_in) : IICLcd (bus_in, addr_in) {
+	maa_result_t error = MAA_SUCCESS;
+
+	usleep(50000);
+	expandWrite(LCD_BACKLIGHT);
+    usleep(100000);
+
+    write4bits(0x03 << 4);
+    usleep(4500);
+    write4bits(0x30);
+    usleep(4500);
+    write4bits(0x30);
+    usleep(150);
+
+    // Put into 4 bit mode
+    write4bits(0x20);
+
+    // Set numeber of lines
+    send(LCD_FUNCTIONSET | 0x0f, 0);
+    send(LCD_DISPLAYCONTROL | LCD_DISPLAYON | LCD_CURSOROFF | LCD_BLINKOFF, 0);
+    clear();
+
+    // Set entry mode.
+    send(LCD_ENTRYMODESET | LCD_ENTRYLEFT | LCD_ENTRYSHIFTDECREMENT, 0);
+
+    home();
+}
+
+Lcm1602::~Lcm1602 () {
+	
+}
+
+/*
+ * **************
+ *  virtual area
+ * **************
+ */
+maa_result_t
+Lcm1602::write (std::string msg) {
+	maa_result_t error = MAA_SUCCESS;
+    for (std::string::size_type i = 0; i < msg.size(); ++i) {
+        error = send (msg[i], LCD_RS);
+    }
+    return error;
+}
+
+maa_result_t 
+Lcm1602::setCursor (int row, int column) {
+	maa_result_t error = MAA_SUCCESS;
+
+	int row_addr[] = { 0x80, 0xc0, 0x14, 0x54};
+	uint8_t offset = ((column % 16) + row_addr[row]);
+
+	return send (LCD_SETDDRAMADDR | offset, 0);
+}
+
+maa_result_t 
+Lcm1602::clear () {
+	return send(LCD_CLEARDISPLAY, 0);
+}
+
+maa_result_t 
+Lcm1602::home () {
+	return send(LCD_RETURNHOME, 0);
+}
+
+/*
+ * **************
+ *  private area
+ * **************
+ */
+maa_result_t 
+Lcm1602::send (uint8_t value, int mode) {
+	maa_result_t ret = MAA_SUCCESS;
+    uint8_t h = value & 0xf0;
+    uint8_t l = (value << 4) & 0xf0;
+    ret = write4bits(h | mode);
+    ret = write4bits(l | mode);
+    return ret;
+}
+
+maa_result_t
+Lcm1602::write4bits(uint8_t value)
+{
+    maa_result_t ret = MAA_SUCCESS;
+    ret = expandWrite(value);
+    ret = pulseEnable(value);
+    return ret;
+}
+
+maa_result_t
+Lcm1602::expandWrite(uint8_t value)
+{
+    uint8_t buffer = value | LCD_BACKLIGHT;
+    return maa_i2c_write_byte(m_i2c_lcd_control, buffer);
+}
+
+maa_result_t
+Lcm1602::pulseEnable(uint8_t value)
+{
+    maa_result_t ret = MAA_SUCCESS;
+    ret = expandWrite(value | LCD_EN);
+    usleep(1);
+    ret = expandWrite(value & ~LCD_EN);
+    usleep(50);
+    return ret;
+}