ir_Sanyo.cpp

00001 #include "IRremote.h"
00002 #include "IRremoteInt.h"
00003 
00004 //==============================================================================
00005 //                      SSSS   AAA   N   N  Y   Y   OOO
00006 //                     S      A   A  NN  N   Y Y   O   O
00007 //                      SSS   AAAAA  N N N    Y    O   O
00008 //                         S  A   A  N  NN    Y    O   O
00009 //                     SSSS   A   A  N   N    Y     OOO
00010 //==============================================================================
00011 
00012 // I think this is a Sanyo decoder:  Serial = SA 8650B
00013 // Looks like Sony except for timings, 48 chars of data and time/space different
00014 
00015 #define SANYO_BITS                   12
00016 #define SANYO_HDR_MARK             3500  // seen range 3500
00017 #define SANYO_HDR_SPACE             950  // seen 950
00018 #define SANYO_ONE_MARK             2400  // seen 2400
00019 #define SANYO_ZERO_MARK             700  // seen 700
00020 #define SANYO_DOUBLE_SPACE_USECS    800  // usually ssee 713 - not using ticks as get number wrapround
00021 #define SANYO_RPT_LENGTH          45000
00022 
00023 //+=============================================================================
00024 #if DECODE_SANYO
00025 bool  IRrecv::decodeSanyo (decode_results *results)
00026 {
00027     long  data   = 0;
00028     int   offset = 0;  // Skip first space  <-- CHECK THIS!
00029 
00030     if (irparams.rawlen < (2 * SANYO_BITS) + 2)  return false ;
00031 
00032 #if 0
00033     // Put this back in for debugging - note can't use #DEBUG as if Debug on we don't see the repeat cos of the delay
00034     printf("IR Gap: %d\n", results->rawbuf[offset]);
00035     printf("test against: %d\n", results->rawbuf[offset]);
00036 #endif
00037 
00038     // Initial space
00039     if (results->rawbuf[offset] < SANYO_DOUBLE_SPACE_USECS) {
00040         //Serial.print("IR Gap found: ");
00041         results->bits        = 0;
00042         results->value       = REPEAT;
00043         results->decode_type = SANYO;
00044         return true;
00045     }
00046     offset++;
00047 
00048     // Initial mark
00049     if (!MATCH_MARK(results->rawbuf[offset++], SANYO_HDR_MARK))  return false ;
00050 
00051     // Skip Second Mark
00052     if (!MATCH_MARK(results->rawbuf[offset++], SANYO_HDR_MARK))  return false ;
00053 
00054     while (offset + 1 < irparams.rawlen) {
00055         if (!MATCH_SPACE(results->rawbuf[offset++], SANYO_HDR_SPACE))  break ;
00056 
00057         if      (MATCH_MARK(results->rawbuf[offset], SANYO_ONE_MARK))   data = (data << 1) | 1 ;
00058         else if (MATCH_MARK(results->rawbuf[offset], SANYO_ZERO_MARK))  data = (data << 1) | 0 ;
00059         else                                                            return false ;
00060         offset++;
00061     }
00062 
00063     // Success
00064     results->bits = (offset - 1) / 2;
00065     if (results->bits < 12) {
00066         results->bits = 0;
00067         return false;
00068     }
00069 
00070     results->value       = data;
00071     results->decode_type = SANYO;
00072     return true;
00073 }
00074 #endif