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| 38 | #define KBD_GSP_H_ |
38 | #define KBD_GSP_H_ |
| 39 | 39 | ||
| 40 | #include <libadt/hash_table.h> |
40 | #include <libadt/hash_table.h> |
| 41 | 41 | ||
| 42 | enum { |
42 | enum { |
| 43 | GSP_END = -1, |
43 | GSP_END = -1, /**< Terminates a sequence. */ |
| 44 | GSP_DEFAULT = -2 |
44 | GSP_DEFAULT = -2 /**< Wildcard, catches unhandled cases. */ |
| 45 | }; |
45 | }; |
| 46 | 46 | ||
| - | 47 | /** Scancode parser description */ |
|
| 47 | typedef struct { |
48 | typedef struct { |
| 48 | /** Transition table, (state, input) -> (state, output). */ |
49 | /** Transition table, (state, input) -> (state, output) */ |
| 49 | hash_table_t trans; |
50 | hash_table_t trans; |
| 50 | 51 | ||
| 51 | /** Current number of states. */ |
52 | /** Number of states */ |
| 52 | int states; |
53 | int states; |
| 53 | } gsp_t; |
54 | } gsp_t; |
| 54 | 55 | ||
| - | 56 | /** Scancode parser transition. */ |
|
| 55 | typedef struct { |
57 | typedef struct { |
| 56 | link_t link; |
58 | link_t link; /**< Link to hash table in @c gsp_t */ |
| 57 | 59 | ||
| 58 | int old_state; |
60 | /* Preconditions */ |
| 59 | int input; |
- | |
| 60 | 61 | ||
| 61 | int new_state; |
62 | int old_state; /**< State before transition */ |
| - | 63 | int input; /**< Input symbol (scancode) */ |
|
| 62 | 64 | ||
| - | 65 | /* Effects */ |
|
| - | 66 | ||
| - | 67 | int new_state; /**< State after transition */ |
|
| - | 68 | ||
| - | 69 | /* Output emitted during transition */ |
|
| - | 70 | ||
| 63 | unsigned out_mods; |
71 | unsigned out_mods; /**< Modifier to emit */ |
| 64 | unsigned out_key; |
72 | unsigned out_key; /**< Keycode to emit */ |
| 65 | } gsp_trans_t; |
73 | } gsp_trans_t; |
| 66 | 74 | ||
| 67 | extern void gsp_init(gsp_t *); |
75 | extern void gsp_init(gsp_t *); |
| 68 | extern int gsp_insert_defs(gsp_t *, const int *); |
76 | extern int gsp_insert_defs(gsp_t *, const int *); |
| 69 | extern int gsp_insert_seq(gsp_t *, const int *, unsigned, unsigned); |
77 | extern int gsp_insert_seq(gsp_t *, const int *, unsigned, unsigned); |
| 70 | extern int gsp_step(gsp_t *, int, int, unsigned *, unsigned *); |
78 | extern int gsp_step(gsp_t *, int, int, unsigned *, unsigned *); |
| 71 | 79 | ||
| 72 | - | ||
| 73 | #endif |
80 | #endif |
| 74 | 81 | ||
| 75 | /** |
82 | /** |
| 76 | * @} |
83 | * @} |
| 77 | */ |
84 | */ |
| 78 | - | ||