trennfix/sw/mm_lookup.h

   1 #ifndef __MM_LOOKUP_H
   2 #define __MM_LOOKUP_H
   3
   4 /*
   5  * Lookup decoder number.
   6  *
   7  */
   8 static uint8_t lookup_decoder(uint8_t mm_byte)
   9 {
  10         switch(mm_byte) {
  11                 /* 0x00 is invalid */
  12         case 0xc0: return 1;
  13         case 0x80: return 2;
  14         case 0x30: return 3;
  15         case 0xf0: return 4;
  16         case 0xb0: return 5;
  17         case 0x20: return 6;
  18         case 0xe0: return 7;
  19         case 0xa0: return 8;
  20
  21         case 0x0c: return 9;
  22         case 0xcc: return 10;
  23         case 0x8c: return 11;
  24         case 0x3c: return 12;
  25         case 0xfc: return 13;
  26         case 0xbc: return 14;
  27         case 0x2c: return 15;
  28         case 0xec: return 16;
  29         case 0xac: return 17;
  30
  31         case 0x08: return 18;
  32         case 0xc8: return 19;
  33         case 0x88: return 20;
  34         case 0x38: return 21;
  35         case 0xf8: return 22;
  36         case 0xb8: return 23;
  37         case 0x28: return 24;
  38         case 0xe8: return 25;
  39
  40         default:
  41                 return 0;
  42         }
  43 }
  44
  45 static uint8_t lookup_command(uint8_t mm_byte)
  46 {
  47         switch(mm_byte) {
  48         case 0xc3: return 1;
  49         case 0x03: return 2;
  50         case 0xf3: return 3;
  51         case 0x33: return 4;
  52         case 0xcf: return 5;
  53         case 0x0f: return 6;
  54         case 0xff: return 7;
  55         case 0x3f: return 8;
  56         default:
  57                 return 0;
  58         }
  59 }
  60
  61
  62 #endif