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TIRThread.cpp
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TIRThread.cpp
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#include <errno.h>
#include <unistd.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <wiringPi.h>
//#include <lirc/lirc_client.h>
#include "tools.h"
#include <SDL2/SDL_mixer.h>
#include "TIRThread.h"
#define SOCK_PATH "/var/run/lirc/lircd"
#define DISPLAY_POWER_PIN 27
// Einfacher iterativer Server für Informationszwecke.
// Wird von anderen Dämonen benutzt, um festzustellen, wer
// gerade verbunden ist usw.
TIRThread::TIRThread()
: mLircSocket(0)
{
// Am Ende des Konstruktors: Thread starten
Run();
}
TIRThread::~TIRThread()
{
printf("Schließe Socket\r\n");
shutdown(mLircSocket, SHUT_RDWR);
close(mLircSocket);
printf("Socket geschlossen\r\n");
}
// ----------------------------------------------------------------------------
#define str_length 256
#define NUM_WAVEFORMS 2
const char* _waveFileNames[] =
{
"/home/pi/Music/beep-07.wav",
"/home/pi/Music/beep-08b.wav",
};
void TIRThread::Execute()
{
fprintf(stdout, "Starte Fernbedienungs-Thread.\r\n");
sleep(5);
//HandleCommand(1);
int t, len;
struct sockaddr_un remote;
char str[str_length];
bool gpio_ok=false;
bool sound_ok=false;
try
{
// Starte die WiringPi-Api (wichtig)
if (wiringPiSetupGpio() == -1)
throw TOSErr("wiringPiSetupGpio failed.",errno);
pinMode(DISPLAY_POWER_PIN, OUTPUT);
gpio_ok=true;
}
catch(std::exception & err)
{
fprintf(stderr, "Exception in gpio init: %s",err.what());
}
catch(...)
{
fprintf(stderr, "Unknown exception in gpio init.");
}
Mix_Chunk* Sounds[NUM_WAVEFORMS];
try
{
// Starte Sound-Api
memset(Sounds, 0, sizeof(Mix_Chunk*) * NUM_WAVEFORMS);
// Set up the audio stream
int result = Mix_OpenAudio(44100, MIX_DEFAULT_FORMAT, 2, 1024);
if( result < 0 )
{
throw TPiShowErr(strprintf("Unable to open audio: %s\n", SDL_GetError()));
}
result = Mix_AllocateChannels(4);
if( result < 0 )
{
throw TPiShowErr(strprintf("Unable to allocate mixing channels: %s\n", SDL_GetError()));
}
// Load waveforms
for( int i = 0; i < NUM_WAVEFORMS; i++ )
{
Sounds[i] = Mix_LoadWAV(_waveFileNames[i]);
if( Sounds[i] == NULL )
{
throw TPiShowErr(strprintf("Unable to load wave file: %s\n", _waveFileNames[i]));
}
}
fprintf(stderr, "Sound init OK.\r\n");
sound_ok=true;
}
catch(std::exception & err)
{
fprintf(stderr, "Exception in sound init: %s",err.what());
}
catch(...)
{
fprintf(stderr, "Unknown exception in sound init.");
}
try
{
if ((mLircSocket = socket(AF_UNIX, SOCK_STREAM, 0)) == -1)
{
throw TOSErr("socket failed.",errno);
//perror("socket");
//exit(1);
}
fprintf(stdout,"Trying to connect...\n");
remote.sun_family = AF_UNIX;
strcpy(remote.sun_path, SOCK_PATH);
len = strlen(remote.sun_path) + sizeof(remote.sun_family);
if (connect(mLircSocket, (struct sockaddr *)&remote, len) == -1)
{
throw TOSErr("connect failed.",errno);
}
fprintf(stdout,"Connected.\n");
while(!TerminateRequested.Get())
{
if ((t=recv(mLircSocket, str, str_length-1, 0)) > 0)
{
str[t] = '\0';
//fprintf(stdout,"%s\r\n",str);
KillReturnAndEndl(str);
std::string irString=std::string(str);
std::vector<std::string> mCommands=ParseLine(irString);
if (mCommands.size()>=3)
{
std::string IRNumberString=mCommands[0].substr(mCommands[0].size()-4,4);
int IRNumber=0;
int RepeatCode=0;
bool res=HexStringToInt(IRNumberString, IRNumber);
res&=HexStringToInt(mCommands[1],RepeatCode);
if (RepeatCode==0 && (IRNumber==KEY_PLAY || IRNumber==KEY_STOP || IRNumber==KEY_REWIND || IRNumber==KEY_FASTFORWARD || IRNumber==KEY_NEXT || IRNumber==KEY_PREVIOUS))
{
DebugOut(strprintf("Taste %d gedrückt. Res: %d RepeatCode: %d String %s\r\n", IRNumber,res, RepeatCode, IRNumberString.c_str()));
TCritGuard cg(IRCommandQueue.GetCritSec());
// Bis zu 10 IR-Kommandos werden in der Queue zwischengespeichert. Aber nur Kommandos, die der Bildsteuerung dienen
if (IRCommandQueue.GetUnsafe().size()<=10 )
IRCommandQueue.GetUnsafe().push_back(IRCode(IRNumber, RepeatCode));
if (sound_ok)
{
Mix_PlayChannel(-1, Sounds[0], 0);
}
}
else if (RepeatCode==0 && IRNumber==KEY_POWER && gpio_ok)
{
if (sound_ok)
{
Mix_PlayChannel(-1, Sounds[1], 0);
}
printf("Schalte Monitor ein/aus...\r\n");
// Display ein/ausschalten
digitalWrite(DISPLAY_POWER_PIN, 1);
// Warte 200 ms
delay(200);
digitalWrite(DISPLAY_POWER_PIN, 0);
delay(200);
}
}
fflush(stdout);
}
else
{
if (t < 0)
perror("recv");
else
fprintf(stdout,"Server closed connection\r\n");
throw TOSErr("recv failed.",errno);
}
}
}
catch(std::exception & err)
{
fprintf(stderr, "Exception in infrared thread: %s\r\n",err.what());
}
catch(...)
{
fprintf(stderr, "Unknown exception in info thread.\r\n");
}
close(mLircSocket);
for( int i = 0; i < NUM_WAVEFORMS; i++ )
{
Mix_FreeChunk(Sounds[i]);
}
Mix_CloseAudio();
fprintf(stdout, "Beende Fernbedienungs-Thread.\r\n");
}
// ----------------------------------------------------------------------------
void TIRThread::HandleCommand(int aCmd)
{
fprintf(stderr, "Kommando empfangen: %d",aCmd);
}