ir_Sharp.cpp

00001 #include "IRremote.h"
00002 #include "IRremoteInt.h"
00003 
00004 //==============================================================================
00005 //                       SSSS  H   H   AAA   RRRR   PPPP
00006 //                      S      H   H  A   A  R   R  P   P
00007 //                       SSS   HHHHH  AAAAA  RRRR   PPPP
00008 //                          S  H   H  A   A  R  R   P
00009 //                      SSSS   H   H  A   A  R   R  P
00010 //==============================================================================
00011 
00012 // Sharp and DISH support by Todd Treece: http://unionbridge.org/design/ircommand
00013 //
00014 // The send function has the necessary repeat built in because of the need to
00015 // invert the signal.
00016 //
00017 // Sharp protocol documentation:
00018 //   http://www.sbprojects.com/knowledge/ir/sharp.htm
00019 //
00020 // Here is the LIRC file I found that seems to match the remote codes from the
00021 // oscilloscope:
00022 //   Sharp LCD TV:
00023 //   http://lirc.sourceforge.net/remotes/sharp/GA538WJSA
00024 
00025 #define SHARP_BITS             15
00026 #define SHARP_BIT_MARK        245
00027 #define SHARP_ONE_SPACE      1805
00028 #define SHARP_ZERO_SPACE      795
00029 #define SHARP_GAP          600000
00030 #define SHARP_RPT_SPACE      3000
00031 
00032 #define SHARP_TOGGLE_MASK  0x3FF
00033 
00034 //+=============================================================================
00035 #if SEND_SHARP
00036 void  IRsend::sendSharpRaw (unsigned long data,  int nbits)
00037 {
00038     enableIROut(38);
00039 
00040     // Sending codes in bursts of 3 (normal, inverted, normal) makes transmission
00041     // much more reliable. That's the exact behaviour of CD-S6470 remote control.
00042     for (int n = 0;  n < 3;  n++) {
00043         for (unsigned long  mask = 1UL << (nbits - 1);  mask;  mask >>= 1) {
00044             if (data & mask) {
00045                 mark(SHARP_BIT_MARK);
00046                 space(SHARP_ONE_SPACE);
00047             } else {
00048                 mark(SHARP_BIT_MARK);
00049                 space(SHARP_ZERO_SPACE);
00050             }
00051         }
00052 
00053         mark(SHARP_BIT_MARK);
00054         space(SHARP_ZERO_SPACE);
00055         wait_ms(40);
00056 
00057         data = data ^ SHARP_TOGGLE_MASK;
00058     }
00059 }
00060 #endif
00061 
00062 //+=============================================================================
00063 // Sharp send compatible with data obtained through decodeSharp()
00064 //                                                  ^^^^^^^^^^^^^ FUNCTION MISSING!
00065 //
00066 #if SEND_SHARP
00067 void  IRsend::sendSharp (unsigned int address,  unsigned int command)
00068 {
00069     sendSharpRaw((address << 10) | (command << 2) | 2, SHARP_BITS);
00070 }
00071 #endif