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- /* Copyright 2016 Jack Humbert
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
- #include "process_printer.h"
- #include "action_util.h"
-
- bool printing_enabled = false;
- uint8_t character_shift = 0;
-
- #define SERIAL_PIN_DDR DDRD
- #define SERIAL_PIN_PORT PORTD
- #define SERIAL_PIN_MASK _BV(PD3)
- #define SERIAL_DELAY 52
-
- inline static void serial_delay(void) { _delay_us(SERIAL_DELAY); }
-
- inline static void serial_high(void) { SERIAL_PIN_PORT |= SERIAL_PIN_MASK; }
-
- inline static void serial_low(void) { SERIAL_PIN_PORT &= ~SERIAL_PIN_MASK; }
-
- inline static void serial_output(void) { SERIAL_PIN_DDR |= SERIAL_PIN_MASK; }
-
- void enable_printing() {
- printing_enabled = true;
- serial_output();
- serial_high();
- }
-
- void disable_printing() { printing_enabled = false; }
-
- uint8_t shifted_numbers[10] = {0x21, 0x40, 0x23, 0x24, 0x25, 0x5E, 0x26, 0x2A, 0x28, 0x29};
-
- // uint8_t keycode_to_ascii[0xFF][2];
-
- // keycode_to_ascii[KC_MINS] = {0x2D, 0x5F};
-
- void print_char(char c) {
- uint8_t b = 8;
- serial_output();
- while (b--) {
- if (c & (1 << b)) {
- serial_high();
- } else {
- serial_low();
- }
- serial_delay();
- }
- }
-
- void print_string(char c[]) {
- for (uint8_t i = 0; i < strlen(c); i++) print_char(c[i]);
- }
-
- bool process_printer(uint16_t keycode, keyrecord_t *record) {
- if (keycode == PRINT_ON) {
- enable_printing();
- return false;
- }
- if (keycode == PRINT_OFF) {
- disable_printing();
- return false;
- }
-
- if (printing_enabled) {
- switch (keycode) {
- case KC_EXLM ... KC_RPRN:
- case KC_UNDS:
- case KC_PLUS:
- case KC_LCBR:
- case KC_RCBR:
- case KC_PIPE:
- case KC_TILD:
- keycode &= 0xFF;
- case KC_LSFT:
- case KC_RSFT:
- if (record->event.pressed) {
- character_shift++;
- } else {
- character_shift--;
- }
- return false;
- break;
- }
-
- switch (keycode) {
- case KC_F1:
- if (record->event.pressed) {
- print_string("This is a line of text!\n\n\n");
- }
- return false;
- case KC_ESC:
- if (record->event.pressed) {
- print_char(0x1B);
- }
- return false;
- break;
- case KC_SPC:
- if (record->event.pressed) {
- print_char(0x20);
- }
- return false;
- break;
- case KC_A ... KC_Z:
- if (record->event.pressed) {
- if (character_shift) {
- print_char(0x41 + (keycode - KC_A));
- } else {
- print_char(0x61 + (keycode - KC_A));
- }
- }
- return false;
- break;
- case KC_1 ... KC_0:
- if (record->event.pressed) {
- if (character_shift) {
- print_char(shifted_numbers[keycode - KC_1]);
- } else {
- print_char(0x30 + ((keycode - KC_1 + 1) % 10));
- }
- }
- return false;
- break;
- case KC_ENT:
- if (record->event.pressed) {
- if (character_shift) {
- print_char(0x0C);
- } else {
- print_char(0x0A);
- }
- }
- return false;
- break;
- case KC_BSPC:
- if (record->event.pressed) {
- if (character_shift) {
- print_char(0x18);
- } else {
- print_char(0x1A);
- }
- }
- return false;
- break;
- case KC_DOT:
- if (record->event.pressed) {
- if (character_shift) {
- print_char(0x3E);
- } else {
- print_char(0x2E);
- }
- }
- return false;
- break;
- case KC_COMM:
- if (record->event.pressed) {
- if (character_shift) {
- print_char(0x3C);
- } else {
- print_char(0x2C);
- }
- }
- return false;
- break;
- case KC_SLSH:
- if (record->event.pressed) {
- if (character_shift) {
- print_char(0x3F);
- } else {
- print_char(0x2F);
- }
- }
- return false;
- break;
- case KC_QUOT:
- if (record->event.pressed) {
- if (character_shift) {
- print_char(0x22);
- } else {
- print_char(0x27);
- }
- }
- return false;
- break;
- case KC_GRV:
- if (record->event.pressed) {
- if (character_shift) {
- print_char(0x7E);
- } else {
- print_char(0x60);
- }
- }
- return false;
- break;
- case KC_MINS:
- if (record->event.pressed) {
- if (character_shift) {
- print_char(0x5F);
- } else {
- print_char(0x2D);
- }
- }
- return false;
- break;
- case KC_EQL:
- if (record->event.pressed) {
- if (character_shift) {
- print_char(0x2B);
- } else {
- print_char(0x3D);
- }
- }
- return false;
- break;
- case KC_LBRC:
- if (record->event.pressed) {
- if (character_shift) {
- print_char(0x7B);
- } else {
- print_char(0x5B);
- }
- }
- return false;
- break;
- case KC_RBRC:
- if (record->event.pressed) {
- if (character_shift) {
- print_char(0x7D);
- } else {
- print_char(0x5D);
- }
- }
- return false;
- break;
- case KC_BSLS:
- if (record->event.pressed) {
- if (character_shift) {
- print_char(0x7C);
- } else {
- print_char(0x5C);
- }
- }
- return false;
- break;
- }
- }
- return true;
- }
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