trennfix/sw/mm/include/mm/mm_switch.h

   1 #ifndef MM_SWITCH_H
   2 #define MM_SWITCH_H
   3
   4 #include <stdint.h>
   5 #include <config/hardware.h>
   6
   7 #define MM_FLAVOR_DRIVE 0
   8 #define MM_FLAVOR_SWITCH 1
   9
  10 #ifdef MM_USE_REGISTER_VARS
  11
  12 uint8_t register shift_command  asm("r2");
  13 uint8_t register shift_function asm("r3");
  14 uint8_t register shift_address asm("r4");
  15 uint8_t register mm_polarity asm("r5");
  16 uint8_t register mm_bitno asm("r6");
  17 uint8_t register mm_time_h asm("r9");
  18 uint8_t register mm_time_l asm("r10");
  19 uint8_t register mm_bit_val asm("r11");
  20 uint8_t register mm_flavor asm("r14");
  21
  22 static void inline __attribute((unused)) mm_init(void)
  23 {
  24         mm_bitno = 0;
  25         mm_time_h = 0;
  26         mm_bit_val = 23;
  27         mm_polarity = 1;
  28 }
  29
  30 #else
  31
  32 #define mm_init(...)
  33
  34 #endif
  35
  36 #ifdef MM_USE_CALLBACK
  37
  38 /*
  39  * mm_key_cb - Callback function!
  40  *
  41  * This function must be defined whenever the mm_switch module is used.
  42  * It will be called from interrupt context whenever a new valid command
  43  * has arrived.
  44  *
  45  * decoder is in the range from 1 to 25. Other values will not occur.
  46  *
  47  * key is in the range from 0 to 8:
  48  *
  49  *   1 - key1 green pressed
  50  *   2 - key1 red pressed
  51  *   3 - key2 green pressed
  52  *   4 - key2 red pressed
  53  *   ...
  54  *   0 - all keys up
  55  *
  56  */
  57 void mm_key_cb(uint8_t decoder, uint8_t function, uint8_t key);
  58 void mm_drive_cb(uint8_t decoder, uint8_t function, uint8_t command);
  59
  60 #endif
  61
  62 void mm_pinchange_callback(void);
  63
  64 enum mm_recmode {
  65         __MM_INIT,
  66         __MM_ARMED,
  67         MM_SLOW,
  68         MM_FAST,
  69 };
  70
  71 #ifdef MM_USE_QUEUE
  72
  73 struct mm_command {
  74         enum mm_recmode recmode; /* Only MM_FAST or MM_SLOW!       */
  75         uint8_t address;         /* Undecoded loco/decoder address */
  76         uint8_t function;        /* The two function bits          */
  77         uint8_t command;         /* Button/Speed/Functions         */
  78 };
  79
  80 struct mm_command *mm_get(void);
  81
  82 #endif /* MM_USE_QUEUE */
  83
  84 #endif