mirror of
https://github.com/VDR4Arch/vdr.git
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357 lines
8.2 KiB
C
357 lines
8.2 KiB
C
/*
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* remote.c: General Remote Control handling
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*
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* See the main source file 'vdr.c' for copyright information and
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* how to reach the author.
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*
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* $Id: remote.c 1.56 2007/02/24 13:23:12 kls Exp $
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*/
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#include "remote.h"
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#include <fcntl.h>
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#include <netinet/in.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/time.h>
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#include <unistd.h>
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#include "tools.h"
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// --- cRemote ---------------------------------------------------------------
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#define INITTIMEOUT 10000 // ms
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#define REPEATTIMEOUT 1000 // ms
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eKeys cRemote::keys[MaxKeys];
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int cRemote::in = 0;
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int cRemote::out = 0;
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cTimeMs cRemote::repeatTimeout;
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cRemote *cRemote::learning = NULL;
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char *cRemote::unknownCode = NULL;
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cMutex cRemote::mutex;
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cCondVar cRemote::keyPressed;
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const char *cRemote::keyMacroPlugin = NULL;
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const char *cRemote::callPlugin = NULL;
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time_t cRemote::lastActivity = 0;
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cRemote::cRemote(const char *Name)
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{
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name = Name ? strdup(Name) : NULL;
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Remotes.Add(this);
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}
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cRemote::~cRemote()
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{
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free(name);
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}
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const char *cRemote::GetSetup(void)
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{
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return Keys.GetSetup(Name());
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}
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void cRemote::PutSetup(const char *Setup)
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{
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Keys.PutSetup(Name(), Setup);
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}
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bool cRemote::Initialize(void)
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{
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if (Ready()) {
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char *NewCode = NULL;
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eKeys Key = Get(INITTIMEOUT, &NewCode);
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if (Key != kNone || NewCode)
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return true;
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}
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return false;
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}
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void cRemote::Clear(void)
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{
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cMutexLock MutexLock(&mutex);
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in = out = 0;
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if (learning) {
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free(unknownCode);
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unknownCode = NULL;
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}
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}
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bool cRemote::Put(eKeys Key, bool AtFront)
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{
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if (Key != kNone) {
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cMutexLock MutexLock(&mutex);
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if (in != out && (keys[out] & k_Repeat) && (Key & k_Release))
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Clear();
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int d = out - in;
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if (d <= 0)
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d = MaxKeys + d;
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if (d - 1 > 0) {
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if (AtFront) {
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if (--out < 0)
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out = MaxKeys - 1;
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keys[out] = Key;
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}
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else {
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keys[in] = Key;
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if (++in >= MaxKeys)
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in = 0;
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}
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keyPressed.Broadcast();
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return true;
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}
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return false;
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}
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return true; // only a real key shall report an overflow!
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}
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bool cRemote::PutMacro(eKeys Key)
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{
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const cKeyMacro *km = KeyMacros.Get(Key);
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if (km) {
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keyMacroPlugin = km->Plugin();
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cMutexLock MutexLock(&mutex);
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for (int i = km->NumKeys(); --i > 0; ) {
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if (!Put(km->Macro()[i], true))
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return false;
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}
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}
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return true;
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}
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bool cRemote::Put(uint64_t Code, bool Repeat, bool Release)
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{
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char buffer[32];
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snprintf(buffer, sizeof(buffer), "%016LX", Code);
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return Put(buffer, Repeat, Release);
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}
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bool cRemote::Put(const char *Code, bool Repeat, bool Release)
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{
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if (learning && this != learning)
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return false;
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eKeys Key = Keys.Get(Name(), Code);
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if (Key != kNone) {
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if (Repeat)
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Key = eKeys(Key | k_Repeat);
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if (Release)
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Key = eKeys(Key | k_Release);
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return Put(Key);
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}
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if (learning) {
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free(unknownCode);
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unknownCode = strdup(Code);
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keyPressed.Broadcast();
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}
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return false;
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}
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bool cRemote::CallPlugin(const char *Plugin)
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{
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cMutexLock MutexLock(&mutex);
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if (!callPlugin) {
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callPlugin = Plugin;
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Put(k_Plugin);
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return true;
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}
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return false;
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}
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const char *cRemote::GetPlugin(void)
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{
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cMutexLock MutexLock(&mutex);
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const char *p = keyMacroPlugin;
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if (p)
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keyMacroPlugin = NULL;
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else {
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p = callPlugin;
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callPlugin = NULL;
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}
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return p;
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}
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bool cRemote::HasKeys(void)
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{
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cMutexLock MutexLock(&mutex);
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return in != out && !(keys[out] & k_Repeat);
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}
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eKeys cRemote::Get(int WaitMs, char **UnknownCode)
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{
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for (;;) {
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cMutexLock MutexLock(&mutex);
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if (in != out) {
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eKeys k = keys[out];
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if (++out >= MaxKeys)
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out = 0;
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if ((k & k_Repeat) != 0)
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repeatTimeout.Set(REPEATTIMEOUT);
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lastActivity = time(NULL);
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return k;
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}
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else if (!WaitMs || !keyPressed.TimedWait(mutex, WaitMs) && repeatTimeout.TimedOut())
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return kNone;
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else if (learning && UnknownCode && unknownCode) {
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*UnknownCode = unknownCode;
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unknownCode = NULL;
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return kNone;
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}
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}
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}
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// --- cRemotes --------------------------------------------------------------
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cRemotes Remotes;
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// --- cKbdRemote ------------------------------------------------------------
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struct tKbdMap {
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eKbdFunc func;
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uint64_t code;
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};
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static tKbdMap KbdMap[] = {
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{ kfF1, 0x0000001B5B31317EULL },
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{ kfF2, 0x0000001B5B31327EULL },
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{ kfF3, 0x0000001B5B31337EULL },
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{ kfF4, 0x0000001B5B31347EULL },
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{ kfF5, 0x0000001B5B31357EULL },
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{ kfF6, 0x0000001B5B31377EULL },
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{ kfF7, 0x0000001B5B31387EULL },
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{ kfF8, 0x0000001B5B31397EULL },
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{ kfF9, 0x0000001B5B32307EULL },
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{ kfF10, 0x0000001B5B32317EULL },
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{ kfF11, 0x0000001B5B32327EULL },
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{ kfF12, 0x0000001B5B32337EULL },
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{ kfUp, 0x00000000001B5B41ULL },
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{ kfDown, 0x00000000001B5B42ULL },
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{ kfLeft, 0x00000000001B5B44ULL },
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{ kfRight, 0x00000000001B5B43ULL },
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{ kfHome, 0x00000000001B5B48ULL },
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{ kfEnd, 0x00000000001B5B46ULL },
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{ kfPgUp, 0x000000001B5B357EULL },
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{ kfPgDown, 0x000000001B5B367EULL },
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{ kfIns, 0x000000001B5B327EULL },
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{ kfDel, 0x000000001B5B337EULL },
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{ kfNone, 0x0000000000000000ULL }
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};
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bool cKbdRemote::kbdAvailable = false;
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bool cKbdRemote::rawMode = false;
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cKbdRemote::cKbdRemote(void)
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:cRemote("KBD")
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,cThread("KBD remote control")
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{
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tcgetattr(STDIN_FILENO, &savedTm);
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struct termios tm;
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if (tcgetattr(STDIN_FILENO, &tm) == 0) {
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tm.c_iflag = 0;
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tm.c_lflag &= ~(ICANON | ECHO);
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tm.c_cc[VMIN] = 0;
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tm.c_cc[VTIME] = 0;
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tcsetattr(STDIN_FILENO, TCSANOW, &tm);
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}
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kbdAvailable = true;
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Start();
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}
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cKbdRemote::~cKbdRemote()
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{
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kbdAvailable = false;
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Cancel(3);
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tcsetattr(STDIN_FILENO, TCSANOW, &savedTm);
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}
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void cKbdRemote::SetRawMode(bool RawMode)
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{
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rawMode = RawMode;
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}
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uint64_t cKbdRemote::MapFuncToCode(int Func)
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{
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for (tKbdMap *p = KbdMap; p->func != kfNone; p++) {
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if (p->func == Func)
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return p->code;
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}
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return (Func <= 0xFF) ? Func : 0;
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}
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int cKbdRemote::MapCodeToFunc(uint64_t Code)
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{
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for (tKbdMap *p = KbdMap; p->func != kfNone; p++) {
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if (p->code == Code)
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return p->func;
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}
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return (Code <= 0xFF) ? Code : kfNone;
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}
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int cKbdRemote::ReadKey(void)
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{
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cPoller Poller(STDIN_FILENO);
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if (Poller.Poll(50)) {
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uchar ch = 0;
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int r = safe_read(STDIN_FILENO, &ch, 1);
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if (r == 1)
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return ch;
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if (r < 0)
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LOG_ERROR_STR("cKbdRemote");
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}
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return -1;
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}
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uint64_t cKbdRemote::ReadKeySequence(void)
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{
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uint64_t k = 0;
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int key1;
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if ((key1 = ReadKey()) >= 0) {
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k = key1;
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if (key1 == 0x1B) {
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// Start of escape sequence
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if ((key1 = ReadKey()) >= 0) {
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k <<= 8;
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k |= key1 & 0xFF;
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switch (key1) {
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case 0x4F: // 3-byte sequence
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if ((key1 = ReadKey()) >= 0) {
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k <<= 8;
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k |= key1 & 0xFF;
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}
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break;
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case 0x5B: // 3- or more-byte sequence
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if ((key1 = ReadKey()) >= 0) {
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k <<= 8;
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k |= key1 & 0xFF;
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switch (key1) {
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case 0x31 ... 0x3F: // more-byte sequence
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case 0x5B: // strange, may apparently occur
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do {
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if ((key1 = ReadKey()) < 0)
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break; // Sequence ends here
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k <<= 8;
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k |= key1 & 0xFF;
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} while (key1 != 0x7E);
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break;
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}
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}
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break;
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}
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}
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}
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}
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return k;
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}
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void cKbdRemote::Action(void)
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{
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while (Running()) {
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uint64_t Command = ReadKeySequence();
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if (Command) {
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if (rawMode || !Put(Command)) {
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int func = MapCodeToFunc(Command);
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if (func)
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Put(KBDKEY(func));
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}
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}
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}
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}
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