MyHomeLight.cpp

00001 /**
00002  * =============================================================================
00003  * My home light controller.
00004  * http://mbed.org/users/shintamainjp/notebook/starboard_expbrd-one_ex1_en/
00005  * =============================================================================
00006  * Copyright (c) 2010 Shinichiro Nakamura (CuBeatSystems)
00007  *
00008  * Permission is hereby granted, free of charge, to any person obtaining a copy
00009  * of this software and associated documentation files (the "Software"), to deal
00010  * in the Software without restriction, including without limitation the rights
00011  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
00012  * copies of the Software, and to permit persons to whom the Software is
00013  * furnished to do so, subject to the following conditions:
00014  *
00015  * The above copyright notice and this permission notice shall be included in
00016  * all copies or substantial portions of the Software.
00017  *
00018  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
00019  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
00020  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
00021  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
00022  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
00023  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
00024  * THE SOFTWARE.
00025  * =============================================================================
00026  */
00027 
00028 #include "MyHomeLight.h"
00029 #include "RemoteIR.h"
00030 
00031 const MyHomeLight::light_signal_t MyHomeLight::lights[8] = {
00032     {0, "\x2C\x52\x09\x02\x08\x82"},
00033     {1, "\x2C\x52\x09\x02\x0A\xA2"},
00034     {2, "\x2C\x52\x09\x02\x0C\xC2"},
00035     {3, "\x2C\x52\x09\x02\x0E\xE2"},
00036     {4, "\x2C\x52\x09\x42\x08\xC2"},
00037     {5, "\x2C\x52\x09\x42\x0A\xE2"},
00038     {6, "\x2C\x52\x09\x42\x0C\x82"},
00039     {7, "\x2C\x52\x09\x42\x0E\xA2"},
00040 };
00041 
00042 /**
00043  * Create.
00044  *
00045  * @param tx_pin Pin of IR transmitter.
00046  */
00047 MyHomeLight::MyHomeLight(PinName tx_pin) : tx(tx_pin) {
00048 }
00049 
00050 /**
00051  * Dispose.
00052  */
00053 MyHomeLight::~MyHomeLight() {
00054 }
00055 
00056 /**
00057  * Toggle state.
00058  *
00059  * @param channel Target channel number.
00060  * @return true if it succeed.
00061  */
00062 bool MyHomeLight::toggle(const int channel) {
00063     RemoteIR::Format fmt = RemoteIR::AEHA;
00064     uint8_t *sig = getLightSignal(channel);
00065     if (sig != NULL) {
00066         for (int i = 0; i < 2; i++) {
00067             while (tx.getState() != TransmitterIR::Idle) {
00068                 wait_us(100);
00069             }
00070             tx.setData(fmt, sig, 48);
00071             wait_ms(120);
00072         }
00073         return true;
00074     }
00075     return false;
00076 }
00077 
00078 /**
00079  * Get a signal for a light.
00080  *
00081  * @param channel Channel of a light.
00082  *
00083  * @return A pointer to a signal.
00084  */
00085 uint8_t *MyHomeLight::getLightSignal(int channel) {
00086     const int n = sizeof(lights) / sizeof(lights[0]);
00087     if ((0 <= channel) && (channel <= n - 1)) {
00088         return (uint8_t *)lights[channel].signal;
00089     }
00090     return NULL;
00091 }