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82 lines
3.7 KiB
82 lines
3.7 KiB
4 years ago
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/**
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* Marlin 3D Printer Firmware
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* Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
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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 3 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 <https://www.gnu.org/licenses/>.
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*
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*/
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#include "../../inc/MarlinConfig.h"
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#if ENABLED(TOUCH_SCREEN_CALIBRATION)
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#include "touch_calibration.h"
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TouchCalibration touch_calibration;
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touch_calibration_t TouchCalibration::calibration;
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calibrationState TouchCalibration::calibration_state = CALIBRATION_NONE;
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touch_calibration_point_t TouchCalibration::calibration_points[4];
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void TouchCalibration::validate_calibration() {
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const bool landscape = validate_precision_x(0, 1) && validate_precision_x(2, 3) && validate_precision_y(0, 2) && validate_precision_y(1, 3);
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const bool portrait = validate_precision_y(0, 1) && validate_precision_y(2, 3) && validate_precision_x(0, 2) && validate_precision_x(1, 3);
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if (landscape || portrait) {
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calibration_state = CALIBRATION_SUCCESS;
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calibration.x = ((calibration_points[2].x - calibration_points[0].x) << 17) / (calibration_points[3].raw_x + calibration_points[2].raw_x - calibration_points[1].raw_x - calibration_points[0].raw_x);
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calibration.y = ((calibration_points[1].y - calibration_points[0].y) << 17) / (calibration_points[3].raw_y - calibration_points[2].raw_y + calibration_points[1].raw_y - calibration_points[0].raw_y);
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calibration.offset_x = calibration_points[0].x - int16_t(((calibration_points[0].raw_x + calibration_points[1].raw_x) * calibration.x) >> 17);
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calibration.offset_y = calibration_points[0].y - int16_t(((calibration_points[0].raw_y + calibration_points[2].raw_y) * calibration.y) >> 17);
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calibration.orientation = landscape ? TOUCH_LANDSCAPE : TOUCH_PORTRAIT;
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}
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else {
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calibration_state = CALIBRATION_FAIL;
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calibration_reset();
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}
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if (calibration_state == CALIBRATION_SUCCESS) {
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SERIAL_ECHOLNPGM("Touch screen calibration completed");
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SERIAL_ECHOLNPAIR("TOUCH_CALIBRATION_X ", calibration.x);
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SERIAL_ECHOLNPAIR("TOUCH_CALIBRATION_Y ", calibration.y);
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SERIAL_ECHOLNPAIR("TOUCH_OFFSET_X ", calibration.offset_x);
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SERIAL_ECHOLNPAIR("TOUCH_OFFSET_Y ", calibration.offset_y);
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SERIAL_ECHOPGM("TOUCH_ORIENTATION "); if (calibration.orientation == TOUCH_LANDSCAPE) SERIAL_ECHOLNPGM("TOUCH_LANDSCAPE"); else SERIAL_ECHOLNPGM("TOUCH_PORTRAIT");
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}
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}
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bool TouchCalibration::handleTouch(uint16_t x, uint16_t y) {
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static millis_t next_button_update_ms = 0;
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const millis_t now = millis();
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if (PENDING(now, next_button_update_ms)) return false;
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next_button_update_ms = now + BUTTON_DELAY_MENU;
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if (calibration_state < CALIBRATION_SUCCESS) {
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calibration_points[calibration_state].raw_x = x;
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calibration_points[calibration_state].raw_y = y;
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}
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switch (calibration_state) {
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case CALIBRATION_TOP_LEFT: calibration_state = CALIBRATION_BOTTOM_LEFT; break;
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case CALIBRATION_BOTTOM_LEFT: calibration_state = CALIBRATION_TOP_RIGHT; break;
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case CALIBRATION_TOP_RIGHT: calibration_state = CALIBRATION_BOTTOM_RIGHT; break;
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case CALIBRATION_BOTTOM_RIGHT: validate_calibration(); break;
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default: break;
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}
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return true;
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}
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#endif // TOUCH_SCREEN_CALIBRATION
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