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 /*
  28  * Keymap Layer (0-15)
  29  */
  30 uint16_t keymap_stat = 0;
  31
  32 /* return highest layer whose state is on */
  33 uint8_t keymap_get_layer(void)
  34 {
  35     return biton16(keymap_stat);
  36 }
  37
  38 static void keymap_stat_set(uint16_t stat)
  39 {
  40     debug("keymap: ");
  41     keymap_debug(); debug(" to ");
  42
  43     keymap_stat = stat;
  44
  45     keymap_debug(); debug("\n");
  46
  47     clear_keyboard_but_mods(); // To avoid stuck keys
  48 }
  49
  50 void keymap_clear(void)
  51 {
  52     keymap_stat_set(0);
  53 }
  54
  55
  56 void keymap_set(uint16_t stat)
  57 {
  58     keymap_stat_set(stat);
  59 }
  60
  61 void keymap_move(uint8_t layer)
  62 {
  63     keymap_stat_set(1<<layer);
  64 }
  65
  66 void keymap_on(uint8_t layer)
  67 {
  68     keymap_stat_set(keymap_stat | (1<<layer));
  69 }
  70
  71 void keymap_off(uint8_t layer)
  72 {
  73     keymap_stat_set(keymap_stat & ~(1<<layer));
  74 }
  75
  76 void keymap_invert(uint8_t layer)
  77 {
  78     keymap_stat_set(keymap_stat ^ (1<<layer));
  79 }
  80
  81 void keymap_or(uint16_t stat)
  82 {
  83     keymap_stat_set(keymap_stat | stat);
  84 }
  85 void keymap_and(uint16_t stat)
  86 {
  87     keymap_stat_set(keymap_stat & stat);
  88 }
  89 void keymap_xor(uint16_t stat)
  90 {
  91     keymap_stat_set(keymap_stat ^ stat);
  92 }
  93
  94 void keymap_debug(void)
  95 {
  96     debug_hex16(keymap_stat); debug("("); debug_dec(keymap_get_layer()); debug(")");
  97 }
  98
  99
 100
 101 /*
 102  * Overlay Layer (16-31 = 0-15|0x10)
 103  */
 104 uint16_t overlay_stat = 0;
 105
 106 /* return highest layer whose state is on */
 107 uint8_t overlay_get_layer(void)
 108 {
 109     return biton16(overlay_stat);
 110 }
 111
 112 static void overlay_stat_set(uint16_t stat)
 113 {
 114     debug("overlay: ");
 115     overlay_debug(); debug(" to ");
 116
 117     overlay_stat = stat;
 118
 119     overlay_debug(); debug("\n");
 120
 121     clear_keyboard_but_mods(); // To avoid stuck keys
 122 }
 123
 124 void overlay_clear(void)
 125 {
 126     overlay_stat_set(0);
 127 }
 128
 129
 130 void overlay_set(uint16_t stat)
 131 {
 132     overlay_stat_set(stat);
 133 }
 134
 135 void overlay_move(uint8_t layer)
 136 {
 137     overlay_stat_set(1<<layer);
 138 }
 139
 140 void overlay_on(uint8_t layer)
 141 {
 142     overlay_stat_set(overlay_stat | (1<<layer));
 143 }
 144
 145 void overlay_off(uint8_t layer)
 146 {
 147     overlay_stat_set(overlay_stat & ~(1<<layer));
 148 }
 149
 150 void overlay_invert(uint8_t layer)
 151 {
 152     overlay_stat_set(overlay_stat ^ (1<<layer));
 153 }
 154
 155 void overlay_or(uint16_t stat)
 156 {
 157     overlay_stat_set(overlay_stat | stat);
 158 }
 159 void overlay_and(uint16_t stat)
 160 {
 161     overlay_stat_set(overlay_stat & stat);
 162 }
 163 void overlay_xor(uint16_t stat)
 164 {
 165     overlay_stat_set(overlay_stat ^ stat);
 166 }
 167
 168 void overlay_debug(void)
 169 {
 170     debug_hex16(overlay_stat); debug("("); debug_dec(overlay_get_layer()); debug(")");
 171 }
 172
 173 action_t layer_switch_get_action(key_t key)
 174 {
 175     action_t action;
 176     action.code = ACTION_TRANSPARENT;
 177
 178     /* overlay: top layer first */
 179     for (int8_t i = 15; i >= 0; i--) {
 180         if (overlay_stat & (1<<i)) {
 181             action = action_for_key(i | OVERLAY_BIT, key);
 182             if (action.code != ACTION_TRANSPARENT) {
 183                 return action;
 184             }
 185         }
 186     }
 187
 188     /* keymap: top layer first */
 189     for (int8_t i = 15; i >= 0; i--) {
 190         if (keymap_stat & (1<<i)) {
 191             action = action_for_key(i, key);
 192             if (action.code != ACTION_TRANSPARENT) {
 193                 return action;
 194             }
 195         }
 196     }
 197
 198     /* default layer */
 199     action = action_for_key(default_layer, key);
 200     return action;
 201 }