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 enum mm_recstate {
   8         MM_IDLE = 0,
   9         MM_FIRST_FAST_SAMPLE,
  10         MM_FIRST_SLOW_SAMPLE, /* If clock arrives, we stay on the fast path! */
  11         MM_FAST_SAMPLE,
  12         MM_FAST_WAIT_FOR_CLOCK,
  13         MM_SLOW_SAMPLE_DELAY,
  14         MM_SLOW_SAMPLE,
  15         MM_SLOW_WAIT_FOR_CLOCK_DELAY,
  16         MM_SLOW_WAIT_FOR_CLOCK,
  17 };
  18
  19 #ifdef MM_USE_REGISTER_VARS
  20
  21 uint8_t register shift_command  asm("r2");
  22 uint8_t register shift_function asm("r3");
  23 uint8_t register shift_address asm("r4");
  24 uint8_t register recstate asm("r5");
  25 uint8_t register bitno asm("r6");
  26 uint8_t register sense_last asm("r8");
  27 uint8_t register time_h asm("r9");
  28 uint8_t register time_l asm("r10");
  29 uint8_t register bit_val asm("r11");
  30
  31 static void inline __attribute((unused)) mm_init(void)
  32 {
  33         bitno = 0;
  34         recstate = MM_IDLE;
  35         time_h = 0;
  36         bit_val = 23;
  37 }
  38
  39 #else
  40
  41 #define mm_init(...)
  42
  43 #endif
  44
  45
  46
  47 /*
  48  * mm_switch_command - Callback function!
  49  *
  50  * This function must be defined whenever the mm_switch module is used.
  51  * It will be called from interrupt context whenever a new valid command
  52  * has arrived.
  53  *
  54  * decoder is in the range from 1 to 25. Other values will not occur.
  55  *
  56  * key is in the range from 0 to 8:
  57  *
  58  *   1 - key1 green pressed
  59  *   2 - key1 red pressed
  60  *   3 - key2 green pressed
  61  *   4 - key2 red pressed
  62  *   ...
  63  *   0 - all keys up
  64  *
  65  */
  66 void mm_switch_command(uint8_t decoder, uint8_t key);
  67
  68 /*
  69  *  empty comment :-)
  70  */
  71 void mm_switch_drive_cb(uint8_t address, uint8_t speed, uint8_t functions, uint8_t flags);
  72
  73 void mm_switch_drive(uint8_t decoder, uint8_t function, uint8_t command);
  74
  75 void mm_switch_pinchange_callback(void);
  76
  77 #endif