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/*
* remote.c: General Remote Control handling
*
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
* $Id: remote.c 1.34 2002/12/08 13:37:13 kls Exp $
*/
#include "remote.h"
#include <fcntl.h>
#include <netinet/in.h>
#include <string.h>
#include <sys/types.h>
#include <sys/time.h>
#include <unistd.h>
#include "tools.h"
// --- cRemote ---------------------------------------------------------------
eKeys cRemote::keys[MaxKeys];
int cRemote::in = 0;
int cRemote::out = 0;
cRemote *cRemote::learning = NULL;
char *cRemote::unknownCode = NULL;
cMutex cRemote::mutex;
cCondVar cRemote::keyPressed;
const char *cRemote::plugin = NULL;
cRemote::cRemote(const char *Name)
{
name = Name ? strdup(Name) : NULL;
Remotes.Add(this);
}
cRemote::~cRemote()
{
free(name);
}
const char *cRemote::GetSetup(void)
{
return Keys.GetSetup(Name());
}
void cRemote::PutSetup(const char *Setup)
{
Keys.PutSetup(Name(), Setup);
}
void cRemote::Clear(void)
{
cMutexLock MutexLock(&mutex);
in = out = 0;
if (learning) {
free(unknownCode);
unknownCode = NULL;
}
}
bool cRemote::Put(eKeys Key)
{
if (Key != kNone) {
cMutexLock MutexLock(&mutex);
if (in != out && (keys[out] & k_Repeat) && (Key & k_Release))
Clear();
int d = out - in;
if (d <= 0)
d = MaxKeys + d;
if (d - 1 > 0) {
keys[in] = Key;
if (++in >= MaxKeys)
in = 0;
keyPressed.Broadcast();
return true;
}
return false;
}
return true; // only a real key shall report an overflow!
}
bool cRemote::PutMacro(eKeys Key)
{
const cKeyMacro *km = KeyMacros.Get(Key);
if (km) {
plugin = km->Plugin();
for (int i = 1; i < MAXKEYSINMACRO; i++) {
if (km->Macro()[i] != kNone) {
if (!Put(km->Macro()[i]))
return false;
}
else
break;
}
}
return true;
}
bool cRemote::Put(uint64 Code, bool Repeat, bool Release)
{
char buffer[32];
snprintf(buffer, sizeof(buffer), "%016LX", Code);
return Put(buffer, Repeat, Release);
}
bool cRemote::Put(const char *Code, bool Repeat, bool Release)
{
if (learning && this != learning)
return false;
eKeys Key = Keys.Get(Name(), Code);
if (Key != kNone) {
if (Repeat)
Key = eKeys(Key | k_Repeat);
if (Release)
Key = eKeys(Key | k_Release);
return Put(Key);
}
if (learning) {
free(unknownCode);
unknownCode = strdup(Code);
keyPressed.Broadcast();
}
return false;
}
eKeys cRemote::Get(int WaitMs, char **UnknownCode)
{
for (;;) {
cMutexLock MutexLock(&mutex);
if (in != out) {
eKeys k = keys[out];
if (++out >= MaxKeys)
out = 0;
return k;
}
else if (!WaitMs || !keyPressed.TimedWait(mutex, WaitMs)) {
if (learning && UnknownCode) {
*UnknownCode = unknownCode;
unknownCode = NULL;
}
return kNone;
}
}
}
// --- cRemotes --------------------------------------------------------------
cRemotes Remotes;
// --- cKbdRemote ------------------------------------------------------------
cKbdRemote::cKbdRemote(void)
:cRemote("KBD")
{
active = false;
tcgetattr(STDIN_FILENO, &savedTm);
struct termios tm;
if (tcgetattr(STDIN_FILENO, &tm) == 0) {
tm.c_iflag = 0;
tm.c_lflag &= ~(ICANON | ECHO);
tm.c_cc[VMIN] = 0;
tm.c_cc[VTIME] = 0;
tcsetattr(STDIN_FILENO, TCSANOW, &tm);
}
Start();
}
cKbdRemote::~cKbdRemote()
{
active = false;
Cancel(3);
tcsetattr(STDIN_FILENO, TCSANOW, &savedTm);
}
void cKbdRemote::Action(void)
{
dsyslog("KBD remote control thread started (pid=%d)", getpid());
cPoller Poller(STDIN_FILENO);
active = true;
while (active) {
if (Poller.Poll(100)) {
uint64 Command = 0;
uint i = 0;
int t0 = time_ms();
while (active && i < sizeof(Command)) {
uchar ch;
int r = read(STDIN_FILENO, &ch, 1);
if (r == 1) {
Command <<= 8;
Command |= ch;
i++;
}
else if (r == 0) {
// don't know why, but sometimes special keys that start with
// 0x1B ('ESC') cause a short gap between the 0x1B and the rest
// of their codes, so we'll need to wait some 100ms to see if
// there is more coming up - or whether this really is the 'ESC'
// key (if somebody knows how to clean this up, please let me know):
if (Command == 0x1B && time_ms() - t0 < 100)
continue;
if (Command)
Put(Command);
break;
}
else {
LOG_ERROR;
break;
}
}
}
}
dsyslog("KBD remote control thread ended (pid=%d)", getpid());
}
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