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 #ifndef NO_ACTION_OVERLAY
 102 /*
 103  * Overlay Layer (16-31 = 0-15|0x10)
 104  */
 105 uint16_t overlay_stat = 0;
 106
 107 /* return highest layer whose state is on */
 108 uint8_t overlay_get_layer(void)
 109 {
 110     return biton16(overlay_stat);
 111 }
 112
 113 static void overlay_stat_set(uint16_t stat)
 114 {
 115     debug("overlay: ");
 116     overlay_debug(); debug(" to ");
 117
 118     overlay_stat = stat;
 119
 120     overlay_debug(); debug("\n");
 121
 122     clear_keyboard_but_mods(); // To avoid stuck keys
 123 }
 124
 125 void overlay_clear(void)
 126 {
 127     overlay_stat_set(0);
 128 }
 129
 130
 131 void overlay_set(uint16_t stat)
 132 {
 133     overlay_stat_set(stat);
 134 }
 135
 136 void overlay_move(uint8_t layer)
 137 {
 138     overlay_stat_set(1<<layer);
 139 }
 140
 141 void overlay_on(uint8_t layer)
 142 {
 143     overlay_stat_set(overlay_stat | (1<<layer));
 144 }
 145
 146 void overlay_off(uint8_t layer)
 147 {
 148     overlay_stat_set(overlay_stat & ~(1<<layer));
 149 }
 150
 151 void overlay_invert(uint8_t layer)
 152 {
 153     overlay_stat_set(overlay_stat ^ (1<<layer));
 154 }
 155
 156 void overlay_or(uint16_t stat)
 157 {
 158     overlay_stat_set(overlay_stat | stat);
 159 }
 160 void overlay_and(uint16_t stat)
 161 {
 162     overlay_stat_set(overlay_stat & stat);
 163 }
 164 void overlay_xor(uint16_t stat)
 165 {
 166     overlay_stat_set(overlay_stat ^ stat);
 167 }
 168
 169 void overlay_debug(void)
 170 {
 171     debug_hex16(overlay_stat); debug("("); debug_dec(overlay_get_layer()); debug(")");
 172 }
 173 #endif
 174
 175 action_t layer_switch_get_action(key_t key)
 176 {
 177     action_t action;
 178     action.code = ACTION_TRANSPARENT;
 179
 180 #ifndef NO_ACTION_OVERLAY
 181     /* overlay: top layer first */
 182     for (int8_t i = 15; i >= 0; i--) {
 183         if (overlay_stat & (1<<i)) {
 184             action = action_for_key(i | OVERLAY_BIT, key);
 185             if (action.code != ACTION_TRANSPARENT) {
 186                 return action;
 187             }
 188         }
 189     }
 190 #endif
 191
 192     /* keymap: top layer first */
 193     for (int8_t i = 15; i >= 0; i--) {
 194         if (keymap_stat & (1<<i)) {
 195             action = action_for_key(i, key);
 196             if (action.code != ACTION_TRANSPARENT) {
 197                 return action;
 198             }
 199         }
 200     }
 201
 202     /* default layer */
 203     action = action_for_key(default_layer, key);
 204     return action;
 205 }