2 * Author: Yevgeniy Kiveisha <yevgeniy.kiveisha@intel.com>
3 * Copyright (c) 2014 Intel Corporation.
5 * Permission is hereby granted, free of charge, to any person obtaining
6 * a copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sublicense, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
13 * The above copyright notice and this permission notice shall be
14 * included in all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
17 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
19 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
20 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
21 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
22 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
32 I2CLcd::I2CLcd (int bus, int lcdAddress) {
33 m_lcd_control_address = lcdAddress;
36 m_i2c_lcd_control = mraa_i2c_init(m_bus);
38 mraa_result_t ret = mraa_i2c_address(m_i2c_lcd_control, m_lcd_control_address);
39 if (ret != MRAA_SUCCESS) {
40 fprintf(stderr, "Messed up i2c bus\n");
45 I2CLcd::write (int row, int column, std::string msg) {
46 setCursor (row, column);
52 return mraa_i2c_stop(m_i2c_lcd_control);
56 I2CLcd::i2cReg (mraa_i2c_context ctx, int deviceAdress, int addr, uint8_t value) {
57 mraa_result_t error = MRAA_SUCCESS;
59 uint8_t data[2] = { addr, value };
60 error = mraa_i2c_address (ctx, deviceAdress);
61 error = mraa_i2c_write (ctx, data, 2);
67 I2CLcd::i2Cmd (mraa_i2c_context ctx, uint8_t value) {
68 mraa_result_t error = MRAA_SUCCESS;
70 uint8_t data[2] = { LCD_CMD, value };
71 error = mraa_i2c_address (ctx, m_lcd_control_address);
72 error = mraa_i2c_write (ctx, data, 2);
78 I2CLcd::i2cData (mraa_i2c_context ctx, uint8_t value) {
79 mraa_result_t error = MRAA_SUCCESS;
81 uint8_t data[2] = { LCD_DATA, value };
82 error = mraa_i2c_address (ctx, m_lcd_control_address);
83 error = mraa_i2c_write (ctx, data, 2);