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.
33 MAX44000::MAX44000 (int bus, int devAddr) {
36 m_maxControlAddr = devAddr;
39 m_i2cMaxControlCtx = mraa_i2c_init(m_bus);
41 mraa_result_t ret = mraa_i2c_address(m_i2cMaxControlCtx, m_maxControlAddr);
42 if (ret != MRAA_SUCCESS) {
43 fprintf(stderr, "Messed up i2c bus\n");
46 // i2cWriteReg (MCR, 0x2C);
47 // i2cWriteReg (TCR, 0x6);
50 MAX44000::~MAX44000() {
51 mraa_i2c_stop(m_i2cMaxControlCtx);
55 MAX44000::getProximity () {
58 data = (i2cReadReg_8 (ALSDATA_HIGH) & 0x7F) << 8;
59 data = data | i2cReadReg_8 (ALSDATA_LOW);
65 MAX44000::getAmbient () {
68 data = (i2cReadReg_8 (ALSDATA_HIGH) & 0x7F) << 8;
69 data = data | i2cReadReg_8 (ALSDATA_LOW);
80 MAX44000::i2cReadReg_8 (int reg) {
83 mraa_i2c_address(m_i2cMaxControlCtx, m_maxControlAddr);
84 mraa_i2c_write_byte(m_i2cMaxControlCtx, reg);
86 mraa_i2c_address(m_i2cMaxControlCtx, m_maxControlAddr);
87 mraa_i2c_read(m_i2cMaxControlCtx, &data, 0x1);
93 MAX44000::i2cReadReg_16 (int reg) {
96 mraa_i2c_address(m_i2cMaxControlCtx, m_maxControlAddr);
97 mraa_i2c_write_byte(m_i2cMaxControlCtx, reg);
99 mraa_i2c_address(m_i2cMaxControlCtx, m_maxControlAddr);
100 mraa_i2c_read(m_i2cMaxControlCtx, (uint8_t *)&data, 0x2);
106 MAX44000::i2cWriteReg (uint8_t reg, uint8_t value) {
107 mraa_result_t error = MRAA_SUCCESS;
109 uint8_t data[2] = { reg, value };
110 error = mraa_i2c_address (m_i2cMaxControlCtx, m_maxControlAddr);
111 error = mraa_i2c_write (m_i2cMaxControlCtx, data, 2);