common/layer_switch.c

   1 #include <stdint.h>
   2 #include "keyboard.h"
   3 #include "action.h"
   4 #include "debug.h"
   5 #include "util.h"
   6 #include "layer_switch.h"
   7
   8
   9 /*
  10  * Default Layer (0-15)
  11  */
  12 uint8_t default_layer = 0;
  13
  14 void default_layer_set(uint8_t layer)
  15 {
  16     debug("default_layer_set: ");
  17     debug_dec(default_layer); debug(" to ");
  18
  19     default_layer = layer;
  20
  21     debug_dec(default_layer); debug("\n");
  22
  23     clear_keyboard_but_mods(); // To avoid stuck keys
  24 }
  25
  26
  27 #ifndef NO_ACTION_LAYER
  28 /*
  29  * Keymap Layer (0-15)
  30  */
  31 uint16_t keymap_stat = 0;
  32
  33 /* return highest layer whose state is on */
  34 uint8_t keymap_get_layer(void)
  35 {
  36     return biton16(keymap_stat);
  37 }
  38
  39 static void keymap_stat_set(uint16_t stat)
  40 {
  41     debug("keymap: ");
  42     keymap_debug(); debug(" to ");
  43
  44     keymap_stat = stat;
  45
  46     keymap_debug(); debug("\n");
  47
  48     clear_keyboard_but_mods(); // To avoid stuck keys
  49 }
  50
  51 void keymap_clear(void)
  52 {
  53     keymap_stat_set(0);
  54 }
  55
  56
  57 void keymap_set(uint16_t stat)
  58 {
  59     keymap_stat_set(stat);
  60 }
  61
  62 void keymap_move(uint8_t layer)
  63 {
  64     keymap_stat_set(1<<layer);
  65 }
  66
  67 void keymap_on(uint8_t layer)
  68 {
  69     keymap_stat_set(keymap_stat | (1<<layer));
  70 }
  71
  72 void keymap_off(uint8_t layer)
  73 {
  74     keymap_stat_set(keymap_stat & ~(1<<layer));
  75 }
  76
  77 void keymap_invert(uint8_t layer)
  78 {
  79     keymap_stat_set(keymap_stat ^ (1<<layer));
  80 }
  81
  82 void keymap_or(uint16_t stat)
  83 {
  84     keymap_stat_set(keymap_stat | stat);
  85 }
  86 void keymap_and(uint16_t stat)
  87 {
  88     keymap_stat_set(keymap_stat & stat);
  89 }
  90 void keymap_xor(uint16_t stat)
  91 {
  92     keymap_stat_set(keymap_stat ^ stat);
  93 }
  94
  95 void keymap_debug(void)
  96 {
  97     debug_hex16(keymap_stat); debug("("); debug_dec(keymap_get_layer()); debug(")");
  98 }
  99 #endif
 100
 101
 102
 103 action_t layer_switch_get_action(key_t key)
 104 {
 105     action_t action;
 106     action.code = ACTION_TRANSPARENT;
 107
 108 #ifndef NO_ACTION_LAYER
 109     /* keymap: top layer first */
 110     for (int8_t i = 15; i >= 0; i--) {
 111         if (keymap_stat & (1<<i)) {
 112             action = action_for_key(i, key);
 113             if (action.code != ACTION_TRANSPARENT) {
 114                 return action;
 115             }
 116         }
 117     }
 118 #endif
 119
 120     /* default layer */
 121     action = action_for_key(default_layer, key);
 122     return action;
 123 }