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
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
|
/*
* Copyright (C) 2022,2023 Konsulko Group
*
* SPDX-License-Identifier: Apache-2.0
*/
#include "HvacLedHelper.h"
#include <iostream>
#include <iomanip>
#include <sstream>
#include <boost/property_tree/ptree.hpp>
#include <boost/property_tree/ini_parser.hpp>
namespace property_tree = boost::property_tree;
#define RED "/sys/class/leds/blinkm-3-9-red/brightness"
#define GREEN "/sys/class/leds/blinkm-3-9-green/brightness"
#define BLUE "/sys/class/leds/blinkm-3-9-blue/brightness"
// RGB temperature mapping
static struct {
const int temperature;
const int rgb[3];
} degree_colours[] = {
{15, {0, 0, 229} },
{16, {22, 0, 204} },
{17, {34, 0, 189} },
{18, {46, 0, 175} },
{19, {58, 0, 186} },
{20, {70, 0, 146} },
{21, {82, 0, 131} },
{22, {104, 0, 116} },
{23, {116, 0, 102} },
{24, {128, 0, 87} },
{25, {140, 0, 73} },
{26, {152, 0, 58} },
{27, {164, 0, 43} },
{28, {176, 0, 29} },
{29, {188, 0, 14} },
{30, {201, 0, 5} }
};
HvacLedHelper::HvacLedHelper() :
m_temp_left(21),
m_temp_right(21),
m_config_valid(false),
m_verbose(0)
{
read_config();
}
void HvacLedHelper::read_config()
{
// Using a separate configuration file now, it may make sense
// to revisit this if a workable scheme to handle overriding
// values for the full demo setup can be come up with.
std::string config("/etc/xdg/AGL/agl-service-hvac-leds.conf");
char *home = getenv("XDG_CONFIG_HOME");
if (home) {
config = home;
config += "/AGL/agl-service-hvac.conf";
}
std::cout << "Using configuration " << config << std::endl;
property_tree::ptree pt;
try {
property_tree::ini_parser::read_ini(config, pt);
}
catch (std::exception &ex) {
// Continue with defaults if file missing/broken
std::cerr << "Could not read " << config << std::endl;
m_config_valid = true;
return;
}
const property_tree::ptree &settings =
pt.get_child("leds", property_tree::ptree());
m_led_path_red = settings.get("red", RED);
std::stringstream ss;
ss << m_led_path_red;
ss >> std::quoted(m_led_path_red);
if (m_led_path_red.empty()) {
std::cerr << "Invalid red LED path" << std::endl;
return;
}
// stat file here?
std::cout << "Using red LED path " << m_led_path_red << std::endl;
m_led_path_green = settings.get("green", GREEN);
std::stringstream().swap(ss);
ss << m_led_path_green;
ss >> std::quoted(m_led_path_green);
if (m_led_path_green.empty()) {
std::cerr << "Invalid green LED path" << std::endl;
return;
}
// stat file here?
std::cout << "Using green LED path " << m_led_path_red << std::endl;
m_led_path_blue = settings.get("blue", BLUE);
std::stringstream().swap(ss);
ss << m_led_path_blue;
ss >> std::quoted(m_led_path_blue);
if (m_led_path_blue.empty()) {
std::cerr << "Invalid blue LED path" << std::endl;
return;
}
// stat file here?
std::cout << "Using blue LED path " << m_led_path_red << std::endl;
m_verbose = 0;
std::string verbose = settings.get("verbose", "");
std::stringstream().swap(ss);
ss << verbose;
ss >> std::quoted(verbose);
if (!verbose.empty()) {
if (verbose == "true" || verbose == "1")
m_verbose = 1;
if (verbose == "2")
m_verbose = 2;
}
m_config_valid = true;
}
void HvacLedHelper::set_left_temperature(uint8_t temp)
{
m_temp_left = temp;
led_update();
}
void HvacLedHelper::set_right_temperature(uint8_t temp)
{
m_temp_right = temp;
led_update();
}
void HvacLedHelper::led_update()
{
if (!m_config_valid)
return;
// Calculates average colour value taken from the temperature toggles,
// limiting to our 15 degree range
int temp_left = m_temp_left - 15;
if (temp_left < 0)
temp_left = 0;
else if (temp_left > 15)
temp_left = 15;
int temp_right = m_temp_right - 15;
if (temp_right < 0)
temp_right = 0;
else if (temp_right > 15)
temp_right = 15;
int red_value = (degree_colours[temp_left].rgb[0] + degree_colours[temp_right].rgb[0]) / 2;
int green_value = (degree_colours[temp_left].rgb[1] + degree_colours[temp_right].rgb[1]) / 2;
int blue_value = (degree_colours[temp_left].rgb[2] + degree_colours[temp_right].rgb[2]) / 2;
//
// Push colour mapping out
//
std::ofstream led_red;
led_red.open(m_led_path_red);
if (led_red.is_open()) {
led_red << std::to_string(red_value);
led_red.close();
} else {
std::cerr << "Could not write red LED path " << m_led_path_red << std::endl;
m_config_valid = false;
return;
}
std::ofstream led_green;
led_green.open(m_led_path_green);
if (led_green.is_open()) {
led_green << std::to_string(green_value);
led_green.close();
} else {
std::cerr << "Could not write green LED path " << m_led_path_green << std::endl;
m_config_valid = false;
return;
}
std::ofstream led_blue;
led_blue.open(m_led_path_blue);
if (led_blue.is_open()) {
led_blue << std::to_string(blue_value);
led_blue.close();
} else {
std::cerr << "Could not write blue LED path " << m_led_path_blue << std::endl;
m_config_valid = false;
return;
}
}
|
