git.iko.soy/unity8
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unity8/plugins/Lights/Lights.cpp
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1/*
2 * Copyright (C) 2014 Canonical, Ltd.
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; version 3.
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 *
13 * You should have received a copy of the GNU General Public License
14 * along with this program. If not, see <http://www.gnu.org/licenses/>.
15 *
16 * Author: Renato Araujo Oliveira Filho <renato.filho@canonical.com>
17 */
19#include "Lights.h"
20#include <QtCore/QDebug>
22extern "C" {
23#include "android-hardware.h"
24#include <string.h>
27Lights::Lights(QObject* parent)
28 : QObject(parent),
29 m_lightDevice(0),
30 m_color("blue"),
31 m_state(Lights::Off),
32 m_onMs(1000),
33 m_offMs(3000)
37Lights::~Lights()
39 if (m_lightDevice) {
40 hw_device_t* device = (hw_device_t*) m_lightDevice;
41 device->close(device);
42 }
45void Lights::setState(Lights::State newState)
47 if (!init()) {
48 qWarning() << "No lights device";
49 return;
50 }
52 if (m_state != newState) {
53 if (newState == Lights::On) {
54 turnOn();
55 } else {
56 turnOff();
57 }
59 m_state = newState;
60 Q_EMIT stateChanged(m_state);
61 }
64Lights::State Lights::state() const
66 return m_state;
69void Lights::setColor(const QColor &color)
71 if (m_color != color) {
72 m_color = color;
73 Q_EMIT colorChanged(m_color);
74 // FIXME: update the color if the light is already on
75 }
78QColor Lights::color() const
80 return m_color;
83int Lights::onMillisec() const
85 return m_onMs;
88void Lights::setOnMillisec(int onMs)
90 if (m_onMs != onMs) {
91 m_onMs = onMs;
92 Q_EMIT onMillisecChanged(m_onMs);
93 // FIXME: update the property if the light is already on
94 }
97int Lights::offMillisec() const
99 return m_offMs;
102void Lights::setOffMillisec(int offMs)
104 if (m_offMs != offMs) {
105 m_offMs = offMs;
106 Q_EMIT offMillisecChanged(m_offMs);
107 // FIXME: update the property if the light is already on
108 }
111bool Lights::init()
113 if (m_lightDevice) {
114 return true;
115 }
117 int err;
118 hw_module_t* module;
120 err = hw_get_module(LIGHTS_HARDWARE_MODULE_ID, (hw_module_t const**)&module);
121 if (err == 0) {
122 hw_device_t* device;
123 err = module->methods->open(module, LIGHT_ID_NOTIFICATIONS, &device);
124 if (err == 0) {
125 m_lightDevice = (light_device_t*)device;
126 turnOff();
127 return true;
128 } else {
129 qWarning() << "Failed to access notification lights";
130 }
131 } else {
132 qWarning() << "Failed to initialize lights hardware.";
133 }
134 return false;
137void Lights::turnOn()
139 // pulse
140 light_state_t state;
141 memset(&state, 0, sizeof(light_state_t));
142 state.color = m_color.rgba();
143 state.flashMode = LIGHT_FLASH_TIMED;
144 state.flashOnMS = m_onMs;
145 state.flashOffMS = m_offMs;
146 state.brightnessMode = BRIGHTNESS_MODE_USER;
148 if (m_lightDevice->set_light(m_lightDevice, &state) != 0) {
149 qWarning() << "Failed to turn the light off";
150 }
153void Lights::turnOff()
155 light_state_t state;
156 memset(&state, 0, sizeof(light_state_t));
157 state.color = 0x00000000;
158 state.flashMode = LIGHT_FLASH_NONE;
159 state.flashOnMS = 0;
160 state.flashOffMS = 0;
161 state.brightnessMode = 0;
163 if (m_lightDevice->set_light(m_lightDevice, &state) != 0) {
164 qWarning() << "Failed to turn the light off";
165 }