419 lines
10 KiB
C
419 lines
10 KiB
C
#include "sten.h"
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// Chord state
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uint32_t cChord = 0; // Current Chord
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int chordIndex = 0; // Keys in previousachord
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int32_t chordState[32]; // Full Chord history
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#define QWERBUF 24 // Size of chords to buffer for output
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bool repeatFlag = false; // Should we repeat?
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uint32_t pChord = 0; // Previous Chord
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int pChordIndex = 0; // Keys in previousachord
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uint32_t pChordState[32]; // Previous chord sate
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uint32_t stickyBits = 0; // Or'd with every incoming press
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#ifndef NO_DEBUG
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char debugMsg[32];
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#endif
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// StenoLayer
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uint32_t releasedChord = 0; // Keys released from current chord
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uint32_t tChord = 0; // Protects state of cChord
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#ifndef STENOLAYERS
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uint32_t stenoLayers[] = { PWR };
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size_t stenoLayerCount = ARRAY_SIZE(stenoLayers);
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#endif
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// Mode state
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enum MODE { STENO = 0, QWERTY, COMMAND };
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enum MODE pMode;
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bool QWERSTENO = false;
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#ifdef ONLYQWERTY
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enum MODE cMode = QWERTY;
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#else
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enum MODE cMode = STENO;
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#endif
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// Command State
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#define MAX_CMD_BUF 20
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uint8_t CMDLEN = 0;
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uint8_t CMDBUF[MAX_CMD_BUF];
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// Key Repeat state
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bool inChord = false;
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bool repEngaged = false;
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uint16_t repTimer = 0;
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#define REP_INIT_DELAY 750
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#define REP_DELAY 25
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// Mousekeys state
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bool inMouse = false;
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int8_t mousePress;
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// All processing done at chordUp goes through here
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bool send_steno_chord_user(steno_mode_t mode, uint8_t chord[6]) {
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// Check for mousekeys, this is release
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#ifdef MOUSEKEY_ENABLE
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if (inMouse) {
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inMouse = false;
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mousekey_off(mousePress);
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mousekey_send();
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}
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#endif
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// Toggle Serial/QWERTY steno
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if (cChord == (PWR | FN | ST1 | ST2)) {
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#ifndef NO_DEBUG
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uprintf("Fallback Toggle\n");
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#endif
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QWERSTENO = !QWERSTENO;
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goto out;
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}
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// handle command mode
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if (cChord == (PWR | FN | RD | RZ)) {
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#ifndef NO_DEBUG
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uprintf("COMMAND Toggle\n");
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#endif
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if (cMode != COMMAND) { // Entering Command Mode
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CMDLEN = 0;
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pMode = cMode;
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cMode = COMMAND;
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} else { // Exiting Command Mode
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cMode = pMode;
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// Press all and release all
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for (int i = 0; i < CMDLEN; i++) {
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register_code(CMDBUF[i]);
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}
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clear_keyboard();
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}
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goto out;
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}
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// Handle Gaming Toggle,
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if (cChord == (PWR | FN | ST4 | ST3) && keymapsCount > 1) {
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#ifndef NO_DEBUG
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uprintf("Switching to QMK\n");
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#endif
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layer_on(1);
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goto out;
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}
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// Lone FN press, toggle QWERTY
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#ifndef ONLYQWERTY
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if (cChord == FN) {
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(cMode == STENO) ? (cMode = QWERTY) : (cMode = STENO);
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goto out;
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}
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#endif
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// Check for Plover momentary
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if (cMode == QWERTY && (cChord & FN)) {
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cChord ^= FN;
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goto steno;
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}
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// Do QWERTY and Momentary QWERTY
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if (cMode == QWERTY || (cMode == COMMAND) || (cChord & (FN | PWR))) {
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processChord(false);
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goto out;
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}
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// Fallback NKRO Steno
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if (cMode == STENO && QWERSTENO) {
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processChord(true);
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goto out;
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}
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steno:
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// Hey that's a steno chord!
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inChord = false;
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chordIndex = 0;
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cChord = 0;
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return true;
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out:
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cChord = 0;
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inChord = false;
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chordIndex = 0;
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clear_keyboard();
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repEngaged = false;
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for (int i = 0; i < 32; i++)
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chordState[i] = 0xFFFF;
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return false;
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}
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// Update Chord State
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bool process_steno_user(uint16_t keycode, keyrecord_t *record) {
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// Everything happens in here when steno keys come in.
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// Bail on keyup
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if (!record->event.pressed) return true;
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// Update key repeat timers
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repTimer = timer_read();
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inChord = true;
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// Switch on the press adding to chord
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bool pr = record->event.pressed;
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switch (keycode) {
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// Mods and stuff
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case STN_ST1: pr ? (cChord |= (ST1)): (cChord &= ~(ST1)); break;
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case STN_ST2: pr ? (cChord |= (ST2)): (cChord &= ~(ST2)); break;
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case STN_ST3: pr ? (cChord |= (ST3)): (cChord &= ~(ST3)); break;
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case STN_ST4: pr ? (cChord |= (ST4)): (cChord &= ~(ST4)); break;
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case STN_FN: pr ? (cChord |= (FN)) : (cChord &= ~(FN)); break;
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case STN_PWR: pr ? (cChord |= (PWR)): (cChord &= ~(PWR)); break;
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case STN_N1...STN_N6: pr ? (cChord |= (LNO)): (cChord &= ~(LNO)); break;
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case STN_N7...STN_NC: pr ? (cChord |= (RNO)): (cChord &= ~(RNO)); break;
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// All the letter keys
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case STN_S1: pr ? (cChord |= (LSU)) : (cChord &= ~(LSU)); break;
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case STN_S2: pr ? (cChord |= (LSD)) : (cChord &= ~(LSD)); break;
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case STN_TL: pr ? (cChord |= (LFT)) : (cChord &= ~(LFT)); break;
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case STN_KL: pr ? (cChord |= (LK)) : (cChord &= ~(LK)); break;
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case STN_PL: pr ? (cChord |= (LP)) : (cChord &= ~(LP)); break;
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case STN_WL: pr ? (cChord |= (LW)) : (cChord &= ~(LW)); break;
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case STN_HL: pr ? (cChord |= (LH)) : (cChord &= ~(LH)); break;
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case STN_RL: pr ? (cChord |= (LR)) : (cChord &= ~(LR)); break;
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case STN_A: pr ? (cChord |= (LA)) : (cChord &= ~(LA)); break;
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case STN_O: pr ? (cChord |= (LO)) : (cChord &= ~(LO)); break;
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case STN_E: pr ? (cChord |= (RE)) : (cChord &= ~(RE)); break;
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case STN_U: pr ? (cChord |= (RU)) : (cChord &= ~(RU)); break;
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case STN_FR: pr ? (cChord |= (RF)) : (cChord &= ~(RF)); break;
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case STN_RR: pr ? (cChord |= (RR)) : (cChord &= ~(RR)); break;
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case STN_PR: pr ? (cChord |= (RP)) : (cChord &= ~(RP)); break;
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case STN_BR: pr ? (cChord |= (RB)) : (cChord &= ~(RB)); break;
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case STN_LR: pr ? (cChord |= (RL)) : (cChord &= ~(RL)); break;
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case STN_GR: pr ? (cChord |= (RG)) : (cChord &= ~(RG)); break;
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case STN_TR: pr ? (cChord |= (RT)) : (cChord &= ~(RT)); break;
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case STN_SR: pr ? (cChord |= (RS)) : (cChord &= ~(RS)); break;
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case STN_DR: pr ? (cChord |= (RD)) : (cChord &= ~(RD)); break;
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case STN_ZR: pr ? (cChord |= (RZ)) : (cChord &= ~(RZ)); break;
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}
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// Store previous state for fastQWER
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if (pr) {
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chordState[chordIndex] = cChord;
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chordIndex++;
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}
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return true;
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}
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void matrix_scan_user(void) {
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// We abuse this for early sending of key
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// Key repeat only on QWER/SYMB layers
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if (cMode != QWERTY || !inChord) return;
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// Check timers
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#ifndef NO_REPEAT
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if (repEngaged && timer_elapsed(repTimer) > REP_DELAY) {
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// Process Key for report
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processChord(false);
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// Send report to host
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send_keyboard_report();
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clear_keyboard();
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repTimer = timer_read();
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}
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if (!repEngaged && timer_elapsed(repTimer) > REP_INIT_DELAY) {
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repEngaged = true;
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}
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#endif
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};
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// For Plover NKRO
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uint32_t processFakeSteno(bool lookup) {
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P( LSU, SEND(KC_Q););
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P( LSD, SEND(KC_A););
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P( LFT, SEND(KC_W););
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P( LP, SEND(KC_E););
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P( LH, SEND(KC_R););
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P( LK, SEND(KC_S););
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P( LW, SEND(KC_D););
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P( LR, SEND(KC_F););
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P( ST1, SEND(KC_T););
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P( ST2, SEND(KC_G););
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P( LA, SEND(KC_C););
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P( LO, SEND(KC_V););
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P( RE, SEND(KC_N););
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P( RU, SEND(KC_M););
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P( ST3, SEND(KC_Y););
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P( ST4, SEND(KC_H););
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P( RF, SEND(KC_U););
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P( RP, SEND(KC_I););
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P( RL, SEND(KC_O););
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P( RT, SEND(KC_P););
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P( RD, SEND(KC_LBRC););
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P( RR, SEND(KC_J););
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P( RB, SEND(KC_K););
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P( RG, SEND(KC_L););
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P( RS, SEND(KC_SCLN););
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P( RZ, SEND(KC_QUOT););
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P( LNO, SEND(KC_1););
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P( RNO, SEND(KC_1););
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return 0;
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}
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// Traverse the chord history to a given point
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// Returns the mask to use
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void processChord(bool useFakeSteno) {
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// Save the clean chord state
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uint32_t savedChord = cChord;
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// Apply Stick Bits if needed
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if (stickyBits != 0) {
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cChord |= stickyBits;
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for (int i = 0; i <= chordIndex; i++)
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chordState[i] |= stickyBits;
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}
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// Strip FN
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if (cChord & FN) cChord ^= FN;
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// First we test if a whole chord was passsed
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// If so we just run it handling repeat logic
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if (useFakeSteno && processFakeSteno(true) == cChord) {
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processFakeSteno(false);
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return;
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} else if (processQwerty(true) == cChord) {
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processQwerty(false);
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// Repeat logic
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if (repeatFlag) {
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restoreState();
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repeatFlag = false;
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processChord(false);
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} else {
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saveState(cChord);
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}
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return;
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}
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// Iterate through chord picking out the individual
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// and longest chords
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uint32_t bufChords[QWERBUF];
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int bufLen = 0;
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uint32_t mask = 0;
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// We iterate over it multiple times to catch the longest
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// chord. Then that gets addded to the mask and re run.
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while (savedChord != mask) {
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uint32_t test = 0;
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uint32_t longestChord = 0;
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for (int i = 0; i <= chordIndex; i++) {
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cChord = chordState[i] & ~mask;
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if (cChord == 0)
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continue;
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// Assume mid parse Sym is new chord
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if (i != 0 && test != 0 && (cChord ^ test) == PWR) {
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longestChord = test;
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break;
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}
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// Lock SYM layer in once detected
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if (mask & PWR)
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cChord |= PWR;
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// Testing for keycodes
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if (useFakeSteno) {
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test = processFakeSteno(true);
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} else {
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test = processQwerty(true);
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}
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if (test != 0) {
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longestChord = test;
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}
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}
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mask |= longestChord;
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bufChords[bufLen] = longestChord;
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bufLen++;
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// That's a loop of sorts, halt processing
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if (bufLen >= QWERBUF) {
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return;
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}
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}
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// Now that the buffer is populated, we run it
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for (int i = 0; i < bufLen ; i++) {
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cChord = bufChords[i];
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if (useFakeSteno) {
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processFakeSteno(false);
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} else {
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processQwerty(false);
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}
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}
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// Save state in case of repeat
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if (!repeatFlag) {
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saveState(savedChord);
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}
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// Restore cChord for held repeat
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cChord = savedChord;
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return;
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}
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void saveState(uint32_t cleanChord) {
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pChord = cleanChord;
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pChordIndex = chordIndex;
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for (int i = 0; i < 32; i++)
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pChordState[i] = chordState[i];
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}
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void restoreState(void) {
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cChord = pChord;
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chordIndex = pChordIndex;
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for (int i = 0; i < 32; i++)
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chordState[i] = pChordState[i];
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}
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// Macros for calling from keymap.c
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void SEND(uint8_t kc) {
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// Send Keycode, Does not work for Quantum Codes
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if (cMode == COMMAND && CMDLEN < MAX_CMD_BUF) {
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#ifndef NO_DEBUG
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uprintf("CMD LEN: %d BUF: %d\n", CMDLEN, MAX_CMD_BUF);
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#endif
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CMDBUF[CMDLEN] = kc;
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CMDLEN++;
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}
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if (cMode != COMMAND) register_code(kc);
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return;
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}
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void REPEAT(void) {
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if (cMode != QWERTY)
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return;
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repeatFlag = true;
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return;
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}
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void SET_STICKY(uint32_t stick) {
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stickyBits = stick;
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return;
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}
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void SWITCH_LAYER(int layer) {
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if (keymapsCount >= layer)
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layer_on(layer);
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}
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void CLICK_MOUSE(uint8_t kc) {
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#ifdef MOUSEKEY_ENABLE
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mousekey_on(kc);
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mousekey_send();
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// Store state for later use
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inMouse = true;
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mousePress = kc;
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#endif
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}
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