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Diffstat (limited to 'keyboards/gboards/butterstick/sten.c')
| -rw-r--r-- | keyboards/gboards/butterstick/sten.c | 418 |
1 files changed, 418 insertions, 0 deletions
diff --git a/keyboards/gboards/butterstick/sten.c b/keyboards/gboards/butterstick/sten.c new file mode 100644 index 0000000000..197abaf92f --- /dev/null +++ b/keyboards/gboards/butterstick/sten.c @@ -0,0 +1,418 @@ +#include "sten.h" + +// Chord state +uint32_t cChord = 0; // Current Chord +int chordIndex = 0; // Keys in previousachord +int32_t chordState[32]; // Full Chord history +#define QWERBUF 24 // Size of chords to buffer for output + +bool repeatFlag = false; // Should we repeat? +uint32_t pChord = 0; // Previous Chord +int pChordIndex = 0; // Keys in previousachord +uint32_t pChordState[32]; // Previous chord sate +uint32_t stickyBits = 0; // Or'd with every incoming press +#ifndef NO_DEBUG +char debugMsg[32]; +#endif + +// StenoLayer +uint32_t releasedChord = 0; // Keys released from current chord +uint32_t tChord = 0; // Protects state of cChord + +#ifndef STENOLAYERS +uint32_t stenoLayers[] = { PWR }; +size_t stenoLayerCount = sizeof(stenoLayers)/sizeof(stenoLayers[0]); +#endif + +// Mode state +enum MODE { STENO = 0, QWERTY, COMMAND }; +enum MODE pMode; +bool QWERSTENO = false; +#ifdef ONLYQWERTY +enum MODE cMode = QWERTY; +#else +enum MODE cMode = STENO; +#endif + +// Command State +#define MAX_CMD_BUF 20 +uint8_t CMDLEN = 0; +uint8_t CMDBUF[MAX_CMD_BUF]; + +// Key Repeat state +bool inChord = false; +bool repEngaged = false; +uint16_t repTimer = 0; +#define REP_INIT_DELAY 750 +#define REP_DELAY 25 + +// Mousekeys state +bool inMouse = false; +int8_t mousePress; + +// All processing done at chordUp goes through here +bool send_steno_chord_user(steno_mode_t mode, uint8_t chord[6]) { + // Check for mousekeys, this is release +#ifdef MOUSEKEY_ENABLE + if (inMouse) { + inMouse = false; + mousekey_off(mousePress); + mousekey_send(); + } +#endif + + // Toggle Serial/QWERTY steno + if (cChord == (PWR | FN | ST1 | ST2)) { +#ifndef NO_DEBUG + uprintf("Fallback Toggle\n"); +#endif + QWERSTENO = !QWERSTENO; + + goto out; + } + + // handle command mode + if (cChord == (PWR | FN | RD | RZ)) { +#ifndef NO_DEBUG + uprintf("COMMAND Toggle\n"); +#endif + if (cMode != COMMAND) { // Entering Command Mode + CMDLEN = 0; + pMode = cMode; + cMode = COMMAND; + } else { // Exiting Command Mode + cMode = pMode; + + // Press all and release all + for (int i = 0; i < CMDLEN; i++) { + register_code(CMDBUF[i]); + } + clear_keyboard(); + } + + goto out; + } + + // Handle Gaming Toggle, + if (cChord == (PWR | FN | ST4 | ST3) && keymapsCount > 1) { +#ifndef NO_DEBUG + uprintf("Switching to QMK\n"); +#endif + layer_on(1); + goto out; + } + + // Lone FN press, toggle QWERTY +#ifndef ONLYQWERTY + if (cChord == FN) { + (cMode == STENO) ? (cMode = QWERTY) : (cMode = STENO); + goto out; + } +#endif + + // Check for Plover momentary + if (cMode == QWERTY && (cChord & FN)) { + cChord ^= FN; + goto steno; + } + + // Do QWERTY and Momentary QWERTY + if (cMode == QWERTY || (cMode == COMMAND) || (cChord & (FN | PWR))) { + processChord(false); + goto out; + } + + // Fallback NKRO Steno + if (cMode == STENO && QWERSTENO) { + processChord(true); + goto out; + } + +steno: + // Hey that's a steno chord! + inChord = false; + chordIndex = 0; + cChord = 0; + return true; + +out: + cChord = 0; + inChord = false; + chordIndex = 0; + clear_keyboard(); + repEngaged = false; + for (int i = 0; i < 32; i++) + chordState[i] = 0xFFFF; + + return false; +} + +// Update Chord State +bool process_steno_user(uint16_t keycode, keyrecord_t *record) { + // Everything happens in here when steno keys come in. + // Bail on keyup + if (!record->event.pressed) return true; + + // Update key repeat timers + repTimer = timer_read(); + inChord = true; + + // Switch on the press adding to chord + bool pr = record->event.pressed; + switch (keycode) { + // Mods and stuff + case STN_ST1: pr ? (cChord |= (ST1)): (cChord &= ~(ST1)); break; + case STN_ST2: pr ? (cChord |= (ST2)): (cChord &= ~(ST2)); break; + case STN_ST3: pr ? (cChord |= (ST3)): (cChord &= ~(ST3)); break; + case STN_ST4: pr ? (cChord |= (ST4)): (cChord &= ~(ST4)); break; + case STN_FN: pr ? (cChord |= (FN)) : (cChord &= ~(FN)); break; + case STN_PWR: pr ? (cChord |= (PWR)): (cChord &= ~(PWR)); break; + case STN_N1...STN_N6: pr ? (cChord |= (LNO)): (cChord &= ~(LNO)); break; + case STN_N7...STN_NC: pr ? (cChord |= (RNO)): (cChord &= ~(RNO)); break; + + // All the letter keys + case STN_S1: pr ? (cChord |= (LSU)) : (cChord &= ~(LSU)); break; + case STN_S2: pr ? (cChord |= (LSD)) : (cChord &= ~(LSD)); break; + case STN_TL: pr ? (cChord |= (LFT)) : (cChord &= ~(LFT)); break; + case STN_KL: pr ? (cChord |= (LK)) : (cChord &= ~(LK)); break; + case STN_PL: pr ? (cChord |= (LP)) : (cChord &= ~(LP)); break; + case STN_WL: pr ? (cChord |= (LW)) : (cChord &= ~(LW)); break; + case STN_HL: pr ? (cChord |= (LH)) : (cChord &= ~(LH)); break; + case STN_RL: pr ? (cChord |= (LR)) : (cChord &= ~(LR)); break; + case STN_A: pr ? (cChord |= (LA)) : (cChord &= ~(LA)); break; + case STN_O: pr ? (cChord |= (LO)) : (cChord &= ~(LO)); break; + case STN_E: pr ? (cChord |= (RE)) : (cChord &= ~(RE)); break; + case STN_U: pr ? (cChord |= (RU)) : (cChord &= ~(RU)); break; + case STN_FR: pr ? (cChord |= (RF)) : (cChord &= ~(RF)); break; + case STN_RR: pr ? (cChord |= (RR)) : (cChord &= ~(RR)); break; + case STN_PR: pr ? (cChord |= (RP)) : (cChord &= ~(RP)); break; + case STN_BR: pr ? (cChord |= (RB)) : (cChord &= ~(RB)); break; + case STN_LR: pr ? (cChord |= (RL)) : (cChord &= ~(RL)); break; + case STN_GR: pr ? (cChord |= (RG)) : (cChord &= ~(RG)); break; + case STN_TR: pr ? (cChord |= (RT)) : (cChord &= ~(RT)); break; + case STN_SR: pr ? (cChord |= (RS)) : (cChord &= ~(RS)); break; + case STN_DR: pr ? (cChord |= (RD)) : (cChord &= ~(RD)); break; + case STN_ZR: pr ? (cChord |= (RZ)) : (cChord &= ~(RZ)); break; + } + + // Store previous state for fastQWER + if (pr) { + chordState[chordIndex] = cChord; + chordIndex++; + } + + return true; +} +void matrix_scan_user(void) { + // We abuse this for early sending of key + // Key repeat only on QWER/SYMB layers + if (cMode != QWERTY || !inChord) return; + + // Check timers +#ifndef NO_REPEAT + if (repEngaged && timer_elapsed(repTimer) > REP_DELAY) { + // Process Key for report + processChord(false); + + // Send report to host + send_keyboard_report(); + clear_keyboard(); + repTimer = timer_read(); + } + + if (!repEngaged && timer_elapsed(repTimer) > REP_INIT_DELAY) { + repEngaged = true; + } +#endif +}; + +// For Plover NKRO +uint32_t processFakeSteno(bool lookup) { + P( LSU, SEND(KC_Q);); + P( LSD, SEND(KC_A);); + P( LFT, SEND(KC_W);); + P( LP, SEND(KC_E);); + P( LH, SEND(KC_R);); + P( LK, SEND(KC_S);); + P( LW, SEND(KC_D);); + P( LR, SEND(KC_F);); + P( ST1, SEND(KC_T);); + P( ST2, SEND(KC_G);); + P( LA, SEND(KC_C);); + P( LO, SEND(KC_V);); + P( RE, SEND(KC_N);); + P( RU, SEND(KC_M);); + P( ST3, SEND(KC_Y);); + P( ST4, SEND(KC_H);); + P( RF, SEND(KC_U);); + P( RP, SEND(KC_I);); + P( RL, SEND(KC_O);); + P( RT, SEND(KC_P);); + P( RD, SEND(KC_LBRC);); + P( RR, SEND(KC_J);); + P( RB, SEND(KC_K);); + P( RG, SEND(KC_L);); + P( RS, SEND(KC_SCLN);); + P( RZ, SEND(KC_COMM);); + P( LNO, SEND(KC_1);); + P( RNO, SEND(KC_1);); + + return 0; +} + +// Traverse the chord history to a given point +// Returns the mask to use +void processChord(bool useFakeSteno) { + // Save the clean chord state + uint32_t savedChord = cChord; + + // Apply Stick Bits if needed + if (stickyBits != 0) { + cChord |= stickyBits; + for (int i = 0; i <= chordIndex; i++) + chordState[i] |= stickyBits; + } + + // Strip FN + if (cChord & FN) cChord ^= FN; + + // First we test if a whole chord was passsed + // If so we just run it handling repeat logic + if (useFakeSteno && processFakeSteno(true) == cChord) { + processFakeSteno(false); + return; + } else if (processQwerty(true) == cChord) { + processQwerty(false); + // Repeat logic + if (repeatFlag) { + restoreState(); + repeatFlag = false; + processChord(false); + } else { + saveState(cChord); + } + return; + } + + // Iterate through chord picking out the individual + // and longest chords + uint32_t bufChords[QWERBUF]; + int bufLen = 0; + uint32_t mask = 0; + + // We iterate over it multiple times to catch the longest + // chord. Then that gets addded to the mask and re run. + while (savedChord != mask) { + uint32_t test = 0; + uint32_t longestChord = 0; + + for (int i = 0; i <= chordIndex; i++) { + cChord = chordState[i] & ~mask; + if (cChord == 0) + continue; + + // Assume mid parse Sym is new chord + if (i != 0 && test != 0 && (cChord ^ test) == PWR) { + longestChord = test; + break; + } + + // Lock SYM layer in once detected + if (mask & PWR) + cChord |= PWR; + + + // Testing for keycodes + if (useFakeSteno) { + test = processFakeSteno(true); + } else { + test = processQwerty(true); + } + + if (test != 0) { + longestChord = test; + } + } + + mask |= longestChord; + bufChords[bufLen] = longestChord; + bufLen++; + + // That's a loop of sorts, halt processing + if (bufLen >= QWERBUF) { + return; + } + } + + // Now that the buffer is populated, we run it + for (int i = 0; i < bufLen ; i++) { + cChord = bufChords[i]; + if (useFakeSteno) { + processFakeSteno(false); + } else { + processQwerty(false); + } + } + + // Save state in case of repeat + if (!repeatFlag) { + saveState(savedChord); + } + + // Restore cChord for held repeat + cChord = savedChord; + + return; +} +void saveState(uint32_t cleanChord) { + pChord = cleanChord; + pChordIndex = chordIndex; + for (int i = 0; i < 32; i++) + pChordState[i] = chordState[i]; +} +void restoreState() { + cChord = pChord; + chordIndex = pChordIndex; + for (int i = 0; i < 32; i++) + chordState[i] = pChordState[i]; +} + +// Macros for calling from keymap.c +void SEND(uint8_t kc) { + // Send Keycode, Does not work for Quantum Codes + if (cMode == COMMAND && CMDLEN < MAX_CMD_BUF) { +#ifndef NO_DEBUG + uprintf("CMD LEN: %d BUF: %d\n", CMDLEN, MAX_CMD_BUF); +#endif + CMDBUF[CMDLEN] = kc; + CMDLEN++; + } + + if (cMode != COMMAND) register_code(kc); + return; +} +void REPEAT(void) { + if (cMode != QWERTY) + return; + + repeatFlag = true; + return; +} +void SET_STICKY(uint32_t stick) { + stickyBits = stick; + return; +} +void SWITCH_LAYER(int layer) { + if (keymapsCount >= layer) + layer_on(layer); +} +void CLICK_MOUSE(uint8_t kc) { +#ifdef MOUSEKEY_ENABLE + mousekey_on(kc); + mousekey_send(); + + // Store state for later use + inMouse = true; + mousePress = kc; +#endif +} |