358 lines
10 KiB
C
358 lines
10 KiB
C
#include <limits.h>
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#include <stdint.h>
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#ifdef DEBUG_ACTION
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# include "debug.h"
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#else
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# include "nodebug.h"
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#endif
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#include "keyboard.h"
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#include "keymap.h"
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#include "action.h"
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#include "util.h"
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#include "action_layer.h"
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/** \brief Default Layer State
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*/
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layer_state_t default_layer_state = 0;
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/** \brief Default Layer State Set At user Level
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*
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* Run user code on default layer state change
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*/
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__attribute__((weak)) layer_state_t default_layer_state_set_user(layer_state_t state) {
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return state;
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}
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/** \brief Default Layer State Set At Keyboard Level
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*
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* Run keyboard code on default layer state change
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*/
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__attribute__((weak)) layer_state_t default_layer_state_set_kb(layer_state_t state) {
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return default_layer_state_set_user(state);
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}
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/** \brief Default Layer State Set
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*
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* Static function to set the default layer state, prints debug info and clears keys
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*/
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static void default_layer_state_set(layer_state_t state) {
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state = default_layer_state_set_kb(state);
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debug("default_layer_state: ");
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default_layer_debug();
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debug(" to ");
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default_layer_state = state;
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default_layer_debug();
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debug("\n");
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#if defined(STRICT_LAYER_RELEASE)
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clear_keyboard_but_mods(); // To avoid stuck keys
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#elif defined(SEMI_STRICT_LAYER_RELEASE)
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clear_keyboard_but_mods_and_keys(); // Don't reset held keys
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#endif
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}
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/** \brief Default Layer Print
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*
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* Print out the hex value of the 32-bit default layer state, as well as the value of the highest bit.
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*/
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void default_layer_debug(void) {
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dprintf("%08lX(%u)", default_layer_state, get_highest_layer(default_layer_state));
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}
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/** \brief Default Layer Set
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*
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* Sets the default layer state.
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*/
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void default_layer_set(layer_state_t state) {
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default_layer_state_set(state);
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}
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#ifndef NO_ACTION_LAYER
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/** \brief Default Layer Or
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*
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* Turns on the default layer based on matching bits between specified layer and existing layer state
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*/
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void default_layer_or(layer_state_t state) {
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default_layer_state_set(default_layer_state | state);
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}
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/** \brief Default Layer And
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*
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* Turns on default layer based on matching enabled bits between specified layer and existing layer state
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*/
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void default_layer_and(layer_state_t state) {
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default_layer_state_set(default_layer_state & state);
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}
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/** \brief Default Layer Xor
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*
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* Turns on default layer based on non-matching bits between specified layer and existing layer state
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*/
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void default_layer_xor(layer_state_t state) {
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default_layer_state_set(default_layer_state ^ state);
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}
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#endif
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#ifndef NO_ACTION_LAYER
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/** \brief Keymap Layer State
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*/
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layer_state_t layer_state = 0;
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/** \brief Layer state set user
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*
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* Runs user code on layer state change
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*/
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__attribute__((weak)) layer_state_t layer_state_set_user(layer_state_t state) {
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return state;
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}
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/** \brief Layer state set keyboard
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*
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* Runs keyboard code on layer state change
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*/
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__attribute__((weak)) layer_state_t layer_state_set_kb(layer_state_t state) {
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return layer_state_set_user(state);
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}
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/** \brief Layer state set
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*
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* Sets the layer to match the specified state (a bitmask)
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*/
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void layer_state_set(layer_state_t state) {
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state = layer_state_set_kb(state);
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dprint("layer_state: ");
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layer_debug();
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dprint(" to ");
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layer_state = state;
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layer_debug();
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dprintln();
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# if defined(STRICT_LAYER_RELEASE)
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clear_keyboard_but_mods(); // To avoid stuck keys
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# elif defined(SEMI_STRICT_LAYER_RELEASE)
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clear_keyboard_but_mods_and_keys(); // Don't reset held keys
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# endif
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}
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/** \brief Layer clear
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*
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* Turn off all layers
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*/
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void layer_clear(void) {
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layer_state_set(0);
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}
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/** \brief Layer state is
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*
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* Return whether the given state is on (it might still be shadowed by a higher state, though)
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*/
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bool layer_state_is(uint8_t layer) {
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return layer_state_cmp(layer_state, layer);
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}
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/** \brief Layer state compare
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*
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* Used for comparing layers {mostly used for unit testing}
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*/
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bool layer_state_cmp(layer_state_t cmp_layer_state, uint8_t layer) {
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if (!cmp_layer_state) {
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return layer == 0;
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}
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return (cmp_layer_state & ((layer_state_t)1 << layer)) != 0;
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}
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/** \brief Layer move
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*
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* Turns on the given layer and turn off all other layers
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*/
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void layer_move(uint8_t layer) {
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layer_state_set((layer_state_t)1 << layer);
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}
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/** \brief Layer on
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*
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* Turns on given layer
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*/
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void layer_on(uint8_t layer) {
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layer_state_set(layer_state | ((layer_state_t)1 << layer));
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}
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/** \brief Layer off
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*
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* Turns off given layer
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*/
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void layer_off(uint8_t layer) {
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layer_state_set(layer_state & ~((layer_state_t)1 << layer));
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}
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/** \brief Layer invert
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*
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* Toggle the given layer (set it if it's unset, or unset it if it's set)
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*/
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void layer_invert(uint8_t layer) {
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layer_state_set(layer_state ^ ((layer_state_t)1 << layer));
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}
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/** \brief Layer or
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*
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* Turns on layers based on matching bits between specified layer and existing layer state
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*/
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void layer_or(layer_state_t state) {
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layer_state_set(layer_state | state);
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}
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/** \brief Layer and
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*
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* Turns on layers based on matching enabled bits between specified layer and existing layer state
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*/
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void layer_and(layer_state_t state) {
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layer_state_set(layer_state & state);
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}
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/** \brief Layer xor
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*
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* Turns on layers based on non-matching bits between specified layer and existing layer state
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*/
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void layer_xor(layer_state_t state) {
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layer_state_set(layer_state ^ state);
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}
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/** \brief Layer debug printing
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*
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* Print out the hex value of the 32-bit layer state, as well as the value of the highest bit.
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*/
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void layer_debug(void) {
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dprintf("%08lX(%u)", layer_state, get_highest_layer(layer_state));
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}
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#endif
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#if !defined(NO_ACTION_LAYER) && !defined(STRICT_LAYER_RELEASE)
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/** \brief source layer cache
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*/
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uint8_t source_layers_cache[((MATRIX_ROWS * MATRIX_COLS) + (CHAR_BIT)-1) / (CHAR_BIT)][MAX_LAYER_BITS] = {{0}};
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# ifdef ENCODER_MAP_ENABLE
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uint8_t encoder_source_layers_cache[(NUM_ENCODERS + (CHAR_BIT)-1) / (CHAR_BIT)][MAX_LAYER_BITS] = {{0}};
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# endif // ENCODER_MAP_ENABLE
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/** \brief update source layers cache impl
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*
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* Updates the supplied cache when changing layers
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*/
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void update_source_layers_cache_impl(uint8_t layer, uint16_t entry_number, uint8_t cache[][MAX_LAYER_BITS]) {
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const uint16_t storage_idx = entry_number / (CHAR_BIT);
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const uint8_t storage_bit = entry_number % (CHAR_BIT);
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for (uint8_t bit_number = 0; bit_number < MAX_LAYER_BITS; bit_number++) {
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cache[storage_idx][bit_number] ^= (-((layer & (1U << bit_number)) != 0) ^ cache[storage_idx][bit_number]) & (1U << storage_bit);
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}
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}
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/** \brief read source layers cache
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*
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* reads the cached keys stored when the layer was changed
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*/
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uint8_t read_source_layers_cache_impl(uint16_t entry_number, uint8_t cache[][MAX_LAYER_BITS]) {
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const uint16_t storage_idx = entry_number / (CHAR_BIT);
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const uint8_t storage_bit = entry_number % (CHAR_BIT);
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uint8_t layer = 0;
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for (uint8_t bit_number = 0; bit_number < MAX_LAYER_BITS; bit_number++) {
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layer |= ((cache[storage_idx][bit_number] & (1U << storage_bit)) != 0) << bit_number;
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}
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return layer;
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}
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/** \brief update encoder source layers cache
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*
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* Updates the cached encoders when changing layers
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*/
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void update_source_layers_cache(keypos_t key, uint8_t layer) {
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if (key.row < MATRIX_ROWS && key.col < MATRIX_COLS) {
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const uint16_t entry_number = (uint16_t)(key.row * MATRIX_COLS) + key.col;
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update_source_layers_cache_impl(layer, entry_number, source_layers_cache);
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}
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# ifdef ENCODER_MAP_ENABLE
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else if (key.row == KEYLOC_ENCODER_CW || key.row == KEYLOC_ENCODER_CCW) {
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const uint16_t entry_number = key.col;
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update_source_layers_cache_impl(layer, entry_number, encoder_source_layers_cache);
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}
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# endif // ENCODER_MAP_ENABLE
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}
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/** \brief read source layers cache
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*
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* reads the cached keys stored when the layer was changed
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*/
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uint8_t read_source_layers_cache(keypos_t key) {
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if (key.row < MATRIX_ROWS && key.col < MATRIX_COLS) {
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const uint16_t entry_number = (uint16_t)(key.row * MATRIX_COLS) + key.col;
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return read_source_layers_cache_impl(entry_number, source_layers_cache);
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}
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# ifdef ENCODER_MAP_ENABLE
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else if (key.row == KEYLOC_ENCODER_CW || key.row == KEYLOC_ENCODER_CCW) {
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const uint16_t entry_number = key.col;
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return read_source_layers_cache_impl(entry_number, encoder_source_layers_cache);
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}
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# endif // ENCODER_MAP_ENABLE
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return 0;
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}
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#endif
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/** \brief Store or get action (FIXME: Needs better summary)
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*
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* Make sure the action triggered when the key is released is the same
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* one as the one triggered on press. It's important for the mod keys
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* when the layer is switched after the down event but before the up
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* event as they may get stuck otherwise.
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*/
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action_t store_or_get_action(bool pressed, keypos_t key) {
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#if !defined(NO_ACTION_LAYER) && !defined(STRICT_LAYER_RELEASE)
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if (disable_action_cache) {
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return layer_switch_get_action(key);
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}
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uint8_t layer;
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if (pressed) {
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layer = layer_switch_get_layer(key);
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update_source_layers_cache(key, layer);
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} else {
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layer = read_source_layers_cache(key);
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}
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return action_for_key(layer, key);
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#else
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return layer_switch_get_action(key);
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#endif
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}
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/** \brief Layer switch get layer
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*
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* Gets the layer based on key info
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*/
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uint8_t layer_switch_get_layer(keypos_t key) {
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#ifndef NO_ACTION_LAYER
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action_t action;
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action.code = ACTION_TRANSPARENT;
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layer_state_t layers = layer_state | default_layer_state;
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/* check top layer first */
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for (int8_t i = MAX_LAYER - 1; i >= 0; i--) {
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if (layers & ((layer_state_t)1 << i)) {
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action = action_for_key(i, key);
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if (action.code != ACTION_TRANSPARENT) {
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return i;
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}
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}
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}
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/* fall back to layer 0 */
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return 0;
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#else
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return get_highest_layer(default_layer_state);
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#endif
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}
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/** \brief Layer switch get layer
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*
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* Gets action code based on key position
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*/
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action_t layer_switch_get_action(keypos_t key) {
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return action_for_key(layer_switch_get_layer(key), key);
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}
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