193 lines
6.1 KiB
C
193 lines
6.1 KiB
C
/* Copyright 2017 Joseph Wasson
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "process_steno.h"
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#include "quantum_keycodes.h"
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#include "eeprom.h"
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#include "keymap_steno.h"
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#include "virtser.h"
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#include <string.h>
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// TxBolt Codes
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#define TXB_NUL 0
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#define TXB_S_L 0b00000001
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#define TXB_T_L 0b00000010
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#define TXB_K_L 0b00000100
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#define TXB_P_L 0b00001000
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#define TXB_W_L 0b00010000
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#define TXB_H_L 0b00100000
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#define TXB_R_L 0b01000001
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#define TXB_A_L 0b01000010
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#define TXB_O_L 0b01000100
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#define TXB_STR 0b01001000
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#define TXB_E_R 0b01010000
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#define TXB_U_R 0b01100000
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#define TXB_F_R 0b10000001
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#define TXB_R_R 0b10000010
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#define TXB_P_R 0b10000100
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#define TXB_B_R 0b10001000
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#define TXB_L_R 0b10010000
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#define TXB_G_R 0b10100000
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#define TXB_T_R 0b11000001
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#define TXB_S_R 0b11000010
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#define TXB_D_R 0b11000100
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#define TXB_Z_R 0b11001000
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#define TXB_NUM 0b11010000
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#define TXB_GRP0 0b00000000
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#define TXB_GRP1 0b01000000
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#define TXB_GRP2 0b10000000
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#define TXB_GRP3 0b11000000
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#define TXB_GRPMASK 0b11000000
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#define TXB_GET_GROUP(code) ((code & TXB_GRPMASK) >> 6)
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#define BOLT_STATE_SIZE 4
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#define GEMINI_STATE_SIZE 6
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#define MAX_STATE_SIZE GEMINI_STATE_SIZE
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static uint8_t state[MAX_STATE_SIZE] = {0};
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static uint8_t chord[MAX_STATE_SIZE] = {0};
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static int8_t pressed = 0;
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static steno_mode_t mode;
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static const uint8_t boltmap[64] PROGMEM = {TXB_NUL, TXB_NUM, TXB_NUM, TXB_NUM, TXB_NUM, TXB_NUM, TXB_NUM, TXB_S_L, TXB_S_L, TXB_T_L, TXB_K_L, TXB_P_L, TXB_W_L, TXB_H_L, TXB_R_L, TXB_A_L, TXB_O_L, TXB_STR, TXB_STR, TXB_NUL, TXB_NUL, TXB_NUL, TXB_STR, TXB_STR, TXB_E_R, TXB_U_R, TXB_F_R, TXB_R_R, TXB_P_R, TXB_B_R, TXB_L_R, TXB_G_R, TXB_T_R, TXB_S_R, TXB_D_R, TXB_NUM, TXB_NUM, TXB_NUM, TXB_NUM, TXB_NUM, TXB_NUM, TXB_Z_R};
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static void steno_clear_state(void) {
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memset(state, 0, sizeof(state));
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memset(chord, 0, sizeof(chord));
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}
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static void send_steno_state(uint8_t size, bool send_empty) {
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for (uint8_t i = 0; i < size; ++i) {
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if (chord[i] || send_empty) {
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virtser_send(chord[i]);
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}
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}
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}
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void steno_init() {
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if (!eeconfig_is_enabled()) {
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eeconfig_init();
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}
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mode = eeprom_read_byte(EECONFIG_STENOMODE);
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}
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void steno_set_mode(steno_mode_t new_mode) {
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steno_clear_state();
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mode = new_mode;
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eeprom_update_byte(EECONFIG_STENOMODE, mode);
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}
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/* override to intercept chords right before they get sent.
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* return zero to suppress normal sending behavior.
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*/
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__attribute__((weak)) bool send_steno_chord_user(steno_mode_t mode, uint8_t chord[6]) { return true; }
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__attribute__((weak)) bool postprocess_steno_user(uint16_t keycode, keyrecord_t *record, steno_mode_t mode, uint8_t chord[6], int8_t pressed) { return true; }
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__attribute__((weak)) bool process_steno_user(uint16_t keycode, keyrecord_t *record) { return true; }
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static void send_steno_chord(void) {
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if (send_steno_chord_user(mode, chord)) {
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switch (mode) {
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case STENO_MODE_BOLT:
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send_steno_state(BOLT_STATE_SIZE, false);
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virtser_send(0); // terminating byte
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break;
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case STENO_MODE_GEMINI:
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chord[0] |= 0x80; // Indicate start of packet
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send_steno_state(GEMINI_STATE_SIZE, true);
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break;
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}
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}
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steno_clear_state();
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}
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uint8_t *steno_get_state(void) { return &state[0]; }
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uint8_t *steno_get_chord(void) { return &chord[0]; }
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static bool update_state_bolt(uint8_t key, bool press) {
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uint8_t boltcode = pgm_read_byte(boltmap + key);
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if (press) {
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state[TXB_GET_GROUP(boltcode)] |= boltcode;
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chord[TXB_GET_GROUP(boltcode)] |= boltcode;
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} else {
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state[TXB_GET_GROUP(boltcode)] &= ~boltcode;
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}
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return false;
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}
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static bool update_state_gemini(uint8_t key, bool press) {
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int idx = key / 7;
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uint8_t bit = 1 << (6 - (key % 7));
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if (press) {
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state[idx] |= bit;
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chord[idx] |= bit;
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} else {
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state[idx] &= ~bit;
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}
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return false;
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}
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bool process_steno(uint16_t keycode, keyrecord_t *record) {
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switch (keycode) {
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case QK_STENO_BOLT:
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if (!process_steno_user(keycode, record)) {
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return false;
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}
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if (IS_PRESSED(record->event)) {
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steno_set_mode(STENO_MODE_BOLT);
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}
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return false;
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case QK_STENO_GEMINI:
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if (!process_steno_user(keycode, record)) {
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return false;
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}
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if (IS_PRESSED(record->event)) {
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steno_set_mode(STENO_MODE_GEMINI);
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}
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return false;
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case STN__MIN ... STN__MAX:
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if (!process_steno_user(keycode, record)) {
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return false;
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}
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switch (mode) {
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case STENO_MODE_BOLT:
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update_state_bolt(keycode - QK_STENO, IS_PRESSED(record->event));
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break;
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case STENO_MODE_GEMINI:
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update_state_gemini(keycode - QK_STENO, IS_PRESSED(record->event));
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break;
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}
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// allow postprocessing hooks
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if (postprocess_steno_user(keycode, record, mode, chord, pressed)) {
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if (IS_PRESSED(record->event)) {
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++pressed;
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} else {
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--pressed;
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if (pressed <= 0) {
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pressed = 0;
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send_steno_chord();
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}
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}
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}
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return false;
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}
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return true;
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}
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