1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
|
/*
* Author: Yevgeniy Kiveisha <yevgeniy.kiveisha@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 <iostream>
#include <string>
#include <stdexcept>
#include <unistd.h>
#include <stdlib.h>
#include "max44000.hpp"
using namespace upm;
MAX44000::MAX44000 (int bus, int devAddr) : m_i2cMaxControlCtx(bus) {
m_name = "MAX44000";
m_maxControlAddr = devAddr;
m_bus = bus;
mraa::Result ret = m_i2cMaxControlCtx.address(m_maxControlAddr);
if (ret != mraa::SUCCESS) {
throw std::invalid_argument(std::string(__FUNCTION__) +
": mraa_i2c_address() failed");
}
// i2cWriteReg (MCR, 0x2C);
// i2cWriteReg (TCR, 0x6);
}
uint16_t
MAX44000::getProximity () {
uint16_t data = 0;
data = (i2cReadReg_8 (ALSDATA_HIGH) & 0x7F) << 8;
data = data | i2cReadReg_8 (ALSDATA_LOW);
return data;
}
uint16_t
MAX44000::getAmbient () {
uint16_t data = 0;
data = (i2cReadReg_8 (ALSDATA_HIGH) & 0x7F) << 8;
data = data | i2cReadReg_8 (ALSDATA_LOW);
return data;
}
/*
* **************
* private area
* **************
*/
uint8_t
MAX44000::i2cReadReg_8 (int reg) {
uint8_t data;
m_i2cMaxControlCtx.address(m_maxControlAddr);
m_i2cMaxControlCtx.writeByte(reg);
m_i2cMaxControlCtx.address(m_maxControlAddr);
m_i2cMaxControlCtx.read(&data, 0x1);
return data;
}
uint16_t
MAX44000::i2cReadReg_16 (int reg) {
uint16_t data;
m_i2cMaxControlCtx.address(m_maxControlAddr);
m_i2cMaxControlCtx.writeByte(reg);
m_i2cMaxControlCtx.address(m_maxControlAddr);
m_i2cMaxControlCtx.read((uint8_t *)&data, 0x2);
return data;
}
mraa::Result
MAX44000::i2cWriteReg (uint8_t reg, uint8_t value) {
mraa::Result error = mraa::SUCCESS;
uint8_t data[2] = { reg, value };
error = m_i2cMaxControlCtx.address (m_maxControlAddr);
error = m_i2cMaxControlCtx.write (data, 2);
return error;
}
|
