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

   1 #ifndef MM_SWITCH_H
   2 #define MM_SWITCH_H
   3
   4 #include <stdint.h>
   5
   6 enum mm_recstate {
   7         MM_IDLE = 0,
   8         MM_FIRST_FAST_SAMPLE,
   9         MM_FIRST_SLOW_SAMPLE, /* If clock arrives, we stay on the fast path! */
  10         MM_FAST_SAMPLE,
  11         MM_FAST_WAIT_FOR_CLOCK,
  12         MM_SLOW_SAMPLE_DELAY,
  13         MM_SLOW_SAMPLE,
  14         MM_SLOW_WAIT_FOR_CLOCK_DELAY,
  15         MM_SLOW_WAIT_FOR_CLOCK,
  16 };
  17
  18 #ifdef MM_USE_REGISTER_VARS
  19
  20 uint8_t register shift_command  asm("r2");
  21 uint8_t register shift_function asm("r3");
  22 uint8_t register shift_address asm("r4");
  23 uint8_t  register recstate asm("r5");
  24 uint8_t register bitno asm("r6");
  25
  26 static void inline __attribute((unused)) mm_init(void)
  27 {
  28         bitno = 0;
  29         recstate = MM_IDLE;
  30 }
  31
  32 #else
  33
  34 #define mm_init(...)
  35
  36 #endif
  37
  38 /*
  39  * mm_switch_command - 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_switch_command(uint8_t decoder, uint8_t key);
  58
  59 /*
  60  *  empty comment :-)
  61  */
  62 void mm_switch_drive_cb(uint8_t address, uint8_t speed, uint8_t functions, uint8_t flags);
  63
  64 void mm_switch_drive(uint8_t decoder, uint8_t function, uint8_t command);
  65
  66 void mm_pinchange_handler(void);
  67
  68
  69 #endif