trennfix/sw: Fixed a bit beauty.
[eisenbahn.git] / 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_last_was_short asm("r8");
18 uint8_t register mm_time_h asm("r9");
19 uint8_t register mm_time_l asm("r10");
20 uint8_t register mm_bit_val asm("r11");
21 uint8_t register mm_flavor asm("r14");
22
23 static void inline __attribute((unused)) mm_init(void)
24 {
25 mm_bitno = 0;
26 mm_time_h = 0;
27 mm_bit_val = 23;
28 mm_polarity = 1;
29 mm_last_was_short = 0;
30 }
31
32 #else
33
34 #define mm_init(...)
35
36 #endif
37
38
39
40 /*
41 * mm_switch_command - Callback function!
42 *
43 * This function must be defined whenever the mm_switch module is used.
44 * It will be called from interrupt context whenever a new valid command
45 * has arrived.
46 *
47 * decoder is in the range from 1 to 25. Other values will not occur.
48 *
49 * key is in the range from 0 to 8:
50 *
51 * 1 - key1 green pressed
52 * 2 - key1 red pressed
53 * 3 - key2 green pressed
54 * 4 - key2 red pressed
55 * ...
56 * 0 - all keys up
57 *
58 */
59 void mm_switch_command(uint8_t decoder, uint8_t key);
60
61 /*
62 * empty comment :-)
63 */
64 void mm_switch_drive_cb(uint8_t address, uint8_t speed, uint8_t functions, uint8_t flags);
65
66 void mm_switch_drive(uint8_t decoder, uint8_t function, uint8_t command);
67
68 void mm_switch_pinchange_callback(void);
69
70 #endif